diff --git a/material/assets/javascripts/bundle.870b014d.min.js b/material/assets/javascripts/bundle.870b014d.min.js new file mode 100644 index 000000000..7d399cd5a --- /dev/null +++ b/material/assets/javascripts/bundle.870b014d.min.js @@ -0,0 +1,2 @@ +!function(t,e){for(var n in e)t[n]=e[n]}(window,function(t){function e(e){for(var r,i,o=e[0],u=e[1],f=e[2],s=0,l=[];s0}function D(){return new U.a(new URL(location.href))}var Q=n(86);function B(t,e){return e.location$.pipe(Object(Q.a)(1),Object(j.a)((function(e){var n=e.href;return new URL(t,n).toString().replace(/\/$/,"")})),Object(E.a)({bufferSize:1,refCount:!0}))}function F(){return location.hash.substring(1)}function W(t){var e=s("a");e.href=t,e.addEventListener("click",(function(t){return t.stopPropagation()})),e.click()}function Y(){return Object(c.a)(window,"hashchange").pipe(Object(j.a)(F),Object(d.a)(F()),Object(_.a)((function(t){return t.length>0})),Object(z.a)())}var J=n(7);function K(t){var e=matchMedia(t);return new 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Object(r.f)(t,1)[0]}))}})),Object(l.a)({prev:[],next:[]}),Object(O.a)(2,1),Object(o.a)((function(t){var e=Object(r.f)(t,2),n=e[0],c=e[1];return n.prev.length16)););return r}),0),Object(u.a)(e),Object(_.a)((function(){!function(t){t.innerHTML=""}(f)})))})))}function P(t,e){var n=t.rx$,r=e.query$;return Object(c.a)(Object(i.a)((function(t){var e=t.parentElement,c=n.pipe(Object(o.a)(h.c),Object(u.a)(!0)),a=Object(p.s)(e).pipe(Object(l.a)((function(t){return t.y>=e.scrollHeight-e.offsetHeight-16})),Object(g.a)(),Object(o.a)(Boolean));return n.pipe(Object(o.a)(h.d),Object(l.a)((function(t){return t.data})),z(t,{query$:r,ready$:c,fetch$:a}),Object(f.a)([]))})))}},function(t,e,n){"use strict";n.d(e,"a",(function(){return y}));var r=n(0),c=n(34),a=n(48),i=n(21),o=n(12),u=n(84),f=n(97),b=n(37),s=n(80),l=n(1),O=n(16),j=n(47),d=n(69),p=n(76),h=n(68),v=n(66),m=n(65);function y(t){var e=t.document$,n=t.viewport$;return Object(c.a)(Object(i.a)((function(t){var y=function(t,e){return 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Object(c.a)(Object(h.a)(d.a),Object(v.a)((function(e){!function(t,e){t.setAttribute("data-md-state",e?"active":"")}(t,"page"===e)})),Object(m.a)((function(){!function(t){t.removeAttribute("data-md-state")}(t)})))}(i))})),Object(s.a)("site"));return Object(a.a)([y,g]).pipe(Object(o.a)((function(t){var e=Object(r.f)(t,2),n=e[0],c=e[1];return Object(r.a)({type:c},n)})))})))}},function(t,e,n){"use strict";n.d(e,"a",(function(){return v}));var r=n(33),c=n(19),a=n(34),i=n(21),o=n(77),u=n(66),f=n(65),b=n(16),s=n(0),l=n(48),O=n(69),j=n(12),d=n(37),p=n(68),h=n(1);function v(t){var e=t.header$,n=t.viewport$,v=new r.a;return Object(b.b)("header").pipe(Object(i.a)((function(t){return v.pipe(Object(o.a)("active"),(e=t,Object(a.a)(Object(p.a)(O.a),Object(u.a)((function(t){var n=t.active;!function(t,e){t.setAttribute("data-md-state",e?"shadow":"")}(e,n)})),Object(f.a)((function(){!function(t){t.removeAttribute("data-md-state")}(e)})))));var e}))).subscribe(c.a),Object(a.a)(Object(i.a)((function(t){return function(t,e){var n=e.header$,r=e.viewport$,c=n.pipe(Object(j.a)((function(t){return t.height})),Object(d.a)()),a=c.pipe(Object(i.a)((function(){return Object(h.t)(t).pipe(Object(j.a)((function(e){var n=e.height;return{top:t.offsetTop,bottom:t.offsetTop+n}})),Object(o.a)("bottom"))})));return Object(l.a)([c,a,r]).pipe(Object(j.a)((function(t){var e=Object(s.f)(t,3),n=e[0],r=e[1],c=r.top,a=r.bottom,i=e[2],o=i.offset.y,u=i.size.height;return{offset:c-n,height:u=Math.max(0,u-Math.max(0,c-o,n)-Math.max(0,u+o-a)),active:c-n<=o}})),Object(d.a)((function(t,e){return t.offset===e.offset&&t.height===e.height&&t.active===e.active})))}(t,{header$:e,viewport$:n})})),Object(u.a)((function(t){return v.next(t)})),Object(f.a)((function(){return v.complete()})))}},function(t,e,n){"use strict";n.d(e,"a",(function(){return O}));var r=n(34),c=n(47),a=n(21),i=n(12),o=n(77),u=n(1),f=n(69),b=n(68),s=n(66),l=n(65);function O(t){var 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a=Object(r.i)(c),i=a.next();!i.done;i=a.next()){var o=i.value;o.scrollWidth>o.clientWidth?o.setAttribute("tabindex","0"):o.removeAttribute("tabindex")}}catch(t){e={error:t}}finally{try{i&&!i.done&&(n=a.return)&&n.call(a)}finally{if(e)throw e.error}}}))}({document$:e,viewport$:D}),function(t){var e=t.document$,n=t.hash$,c=e.pipe(Object(y.a)((function(){return Object(w.e)("details")})));Object(s.a)(Object(w.y)("print").pipe(Object(m.a)(Boolean)),Object(b.a)(window,"beforeprint")).pipe(Object(C.a)(c)).subscribe((function(t){var e,n;try{for(var c=Object(r.i)(t),a=c.next();!a.done;a=c.next()){a.value.setAttribute("open","")}}catch(t){e={error:t}}finally{try{a&&!a.done&&(n=c.return)&&n.call(c)}finally{if(e)throw e.error}}})),n.pipe(Object(y.a)((function(t){return Object(w.c)('[id="'+t+'"]')})),Object(m.a)((function(t){return void 0!==t})),Object(d.a)((function(t){var e=t.closest("details");e&&!e.open&&e.setAttribute("open","")}))).subscribe((function(t){return t.scrollIntoView()}))}({document$:e,hash$:N}),{document$:e}.document$.pipe(Object(A.a)(1),Object(h.a)(Object(x.useComponent)("container")),Object(y.a)((function(t){var e=Object(r.f)(t,2)[1];return Object(w.e)("script",e)}))).pipe(Object(O.a)((function(t){return i.a.apply(void 0,Object(r.g)(t))})),Object(_.a)((function(t){var e=Object(w.a)("script");return t.src?(e.src=t.src,Object(w.j)(t,e),new k.a((function(t){e.onload=function(){return t.complete()}}))):(e.textContent=t.textContent,Object(w.j)(t,e),T.a)}))).subscribe(E.a),function(t){t.document$.pipe(Object(y.a)((function(){return Object(w.d)(".md-source[href]")})),Object(O.a)((function(t){var e=t.href;return Object(P.a)(""+Object(P.c)(e),(function(){return H(e)}))})),Object(j.a)((function(){return o.a}))).subscribe((function(t){var e,n;try{for(var c=Object(r.i)(Object(w.e)(".md-source__repository")),a=c.next();!a.done;a=c.next()){var i=a.value;i.hasAttribute("data-md-state")||(i.setAttribute("data-md-state","done"),i.appendChild(Object(z.c)(t)))}}catch(t){e={error:t}}finally{try{a&&!a.done&&(n=c.return)&&n.call(c)}finally{if(e)throw e.error}}}))}({document$:e}),function(t){var e=t.document$,n=Object(w.a)("table");e.pipe(Object(y.a)((function(){return Object(w.e)("table:not([class])")}))).subscribe((function(t){var e,c;try{for(var a=Object(r.i)(t),i=a.next();!i.done;i=a.next()){var o=i.value;Object(w.j)(o,n),Object(w.j)(n,Object(z.d)(o))}}catch(t){e={error:t}}finally{try{i&&!i.done&&(c=a.return)&&c.call(a)}finally{if(e)throw e.error}}}))}({document$:e}),function(t){var e=t.document$.pipe(Object(y.a)((function(){return Object(w.e)("[data-md-scrollfix]")})),Object(l.a)({bufferSize:1,refCount:!0}));e.subscribe((function(t){var e,n;try{for(var c=Object(r.i)(t),a=c.next();!a.done;a=c.next()){a.value.removeAttribute("data-md-scrollfix")}}catch(t){e={error:t}}finally{try{a&&!a.done&&(n=c.return)&&n.call(c)}finally{if(e)throw e.error}}})),Object(L.a)(M,e,o.a).pipe(Object(O.a)((function(t){return s.a.apply(void 0,Object(r.g)(t.map((function(t){return Object(b.a)(t,"touchstart").pipe(Object(R.a)(t))}))))}))).subscribe((function(t){var e=t.scrollTop;0===e?t.scrollTop=1:e+t.offsetHeight===t.scrollHeight&&(t.scrollTop=e-1)}))}({document$:e});var W=Object($.f)(),Y=Object($.e)({document$:e,dialog$:W}),J=Object(x.useComponent)("header").pipe(Object(x.mountHeader)({document$:e,viewport$:D}),Object(l.a)({bufferSize:1,refCount:!0})),K=Object(x.useComponent)("main").pipe(Object(x.mountMain)({header$:J,viewport$:D}),Object(l.a)({bufferSize:1,refCount:!0})),X=Object(x.useComponent)("navigation").pipe(Object(x.mountNavigation)({header$:J,main$:K,viewport$:D,screen$:B}),Object(l.a)({bufferSize:1,refCount:!0})),G=Object(x.useComponent)("toc").pipe(Object(x.mountTableOfContents)({header$:J,main$:K,viewport$:D,tablet$:Q}),Object(l.a)({bufferSize:1,refCount:!0})),V=Object(x.useComponent)("tabs").pipe(Object(x.mountTabs)({header$:J,viewport$:D,screen$:B}),Object(l.a)({bufferSize:1,refCount:!0})),Z=Object(x.useComponent)("search").pipe(Object(O.a)((function(){return Object(c.a)((function(){var e=t.search&&t.search.index?t.search.index:void 0,n=void 0!==e?Object(a.a)(e):q.pipe(Object(O.a)((function(t){return fetch(t+"/search/search_index.json",{credentials:"same-origin"}).then((function(t){return t.json()}))})));return Object(i.a)(Object($.i)(t.search.worker,{base$:q,index$:n}))}))}))).pipe(Object(O.a)((function(e){var n=Object(x.useComponent)("search-query").pipe(Object(x.mountSearchQuery)(e,{transform:t.search.transform}),Object(l.a)({bufferSize:1,refCount:!0})),r=Object(x.useComponent)("search-reset").pipe(Object(x.mountSearchReset)(),Object(l.a)({bufferSize:1,refCount:!0})),c=Object(x.useComponent)("search-result").pipe(Object(x.mountSearchResult)(e,{query$:n}),Object(l.a)({bufferSize:1,refCount:!0}));return Object(x.useComponent)("search").pipe(Object(x.mountSearch)(e,{query$:n,reset$:r,result$:c}))})),Object(j.a)((function(){return Object(x.useComponent)("search").subscribe((function(t){return t.hidden=!0})),o.a})),Object(l.a)({bufferSize:1,refCount:!0}));if(N.pipe(Object(d.a)((function(){return Object(w.o)("search",!1)})),Object(p.a)(125)).subscribe((function(t){return Object(w.n)("#"+t)})),Object(u.a)([Object(w.z)("search"),Q]).pipe(Object(h.a)(D),Object(O.a)((function(t){var n=Object(r.f)(t,2),c=Object(r.f)(n[0],2),a=c[0],i=c[1],o=n[1].offset.y,u=a&&!i;return e.pipe(Object(p.a)(u?400:100),Object(v.a)(f.a),Object(d.a)((function(t){var e=t.body;return u?U(e,o):I(e)})))}))).subscribe(),Object(b.a)(document.body,"click").pipe(Object(m.a)((function(t){return!(t.metaKey||t.ctrlKey)})),Object(m.a)((function(t){if(t.target instanceof HTMLElement){var e=t.target.closest("a");if(e&&Object(w.h)(e))return!0}return!1}))).subscribe((function(){Object(w.o)("drawer",!1)})),t.features.includes("navigation.instant")&&"file:"!==location.protocol){var tt=new DOMParser;q.pipe(Object(O.a)((function(t){return Object(a.a)(fetch(t+"/sitemap.xml").then((function(t){return t.text()})).then((function(t){return tt.parseFromString(t,"text/xml")})))})),Object(h.a)(q),Object(y.a)((function(t){var e=Object(r.f)(t,2),n=e[0],c=e[1],a=Object(w.e)("loc",n).map((function(t){return t.textContent}));if(a.length>1){var i=Object(r.f)(a.sort((function(t,e){return t.length-e.length})),2),o=i[0],u=i[1],f=0;if(o===u)f=o.length;else for(;o.charAt(f)===u.charAt(f);)f++;for(var b=0;b\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ReplaySubject, Subject, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch document\n *\n * Documents must be implemented as subjects, so all downstream observables are\n * automatically updated when a new document is emitted. This enabled features\n * like instant loading.\n *\n * @return Document subject\n */\nexport function watchDocument(): Subject {\n const document$ = new ReplaySubject()\n fromEvent(document, \"DOMContentLoaded\")\n .pipe(\n mapTo(document)\n )\n .subscribe(document$)\n\n /* Return document */\n return document$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve an element matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Element or nothing\n */\nexport function getElement(\n selector: string, node: ParentNode = document\n): T | undefined {\n return node.querySelector(selector) || undefined\n}\n\n/**\n * Retrieve an element matching a query selector or throw a reference error\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Element\n */\nexport function getElementOrThrow(\n selector: string, node: ParentNode = document\n): T {\n const el = getElement(selector, node)\n if (typeof el === \"undefined\")\n throw new ReferenceError(\n `Missing element: expected \"${selector}\" to be present`\n )\n return el\n}\n\n/**\n * Retrieve the currently active element\n *\n * @return Element or nothing\n */\nexport function getActiveElement(): HTMLElement | undefined {\n return document.activeElement instanceof HTMLElement\n ? document.activeElement\n : undefined\n}\n\n/**\n * Retrieve all elements matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Elements\n */\nexport function getElements(\n selector: string, node: ParentNode = document\n): T[] {\n return Array.from(node.querySelectorAll(selector))\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Create an element\n *\n * @template T - Tag name type\n *\n * @param tagName - Tag name\n *\n * @return Element\n */\nexport function createElement(\n tagName: T\n): HTMLElementTagNameMap[T] {\n return document.createElement(tagName)\n}\n\n/**\n * Replace an element with another element\n *\n * @param source - Source element\n * @param target - Target element\n */\nexport function replaceElement(\n source: HTMLElement, target: Node\n): void {\n source.replaceWith(target)\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getActiveElement } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element focus\n *\n * @param el - Element\n * @param value - Whether the element should be focused\n */\nexport function setElementFocus(\n el: HTMLElement, value: boolean = true\n): void {\n if (value)\n el.focus()\n else\n el.blur()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element focus\n *\n * @param el - Element\n *\n * @return Element focus observable\n */\nexport function watchElementFocus(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(el, \"focus\"),\n fromEvent(el, \"blur\")\n )\n .pipe(\n map(({ type }) => type === \"focus\"),\n startWith(el === getActiveElement())\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementOffset {\n x: number /* Horizontal offset */\n y: number /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element offset\n *\n * @param el - Element\n *\n * @return Element offset\n */\nexport function getElementOffset(el: HTMLElement): ElementOffset {\n return {\n x: el.scrollLeft,\n y: el.scrollTop\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element offset\n *\n * @param el - Element\n *\n * @return Element offset observable\n */\nexport function watchElementOffset(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(el, \"scroll\"),\n fromEvent(window, \"resize\")\n )\n .pipe(\n map(() => getElementOffset(el)),\n startWith(getElementOffset(el))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element text selection\n *\n * @param el - Element\n */\nexport function setElementSelection(\n el: HTMLElement\n): void {\n if (el instanceof HTMLInputElement)\n el.select()\n else\n throw new Error(\"Not implemented\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ResizeObserver from \"resize-observer-polyfill\"\nimport {\n NEVER,\n Observable,\n Subject,\n defer,\n merge,\n of\n} from \"rxjs\"\nimport {\n filter,\n finalize,\n map,\n shareReplay,\n startWith,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementSize {\n width: number /* Element width */\n height: number /* Element height */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Resize observer entry subject\n */\nconst entry$ = new Subject()\n\n/**\n * Resize observer observable\n *\n * This observable will create a `ResizeObserver` on the first subscription\n * and will automatically terminate it when there are no more subscribers.\n * It's quite important to centralize observation in a single `ResizeObserver`,\n * as the performance difference can be quite dramatic, as the link shows.\n *\n * @see https://bit.ly/3iIYfEm - Google Groups on performance\n */\nconst observer$ = defer(() => of(\n new ResizeObserver(entries => {\n for (const entry of entries)\n entry$.next(entry)\n })\n))\n .pipe(\n switchMap(resize => merge(of(resize), NEVER)\n .pipe(\n finalize(() => resize.disconnect())\n )\n ),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element size\n *\n * @param el - Element\n *\n * @return Element size\n */\nexport function getElementSize(el: HTMLElement): ElementSize {\n return {\n width: el.offsetWidth,\n height: el.offsetHeight\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element size\n *\n * This function returns an observable that will subscribe to a single internal\n * instance of `ResizeObserver` upon subscription, and emit resize events until\n * termination. Note that this function should not be called with the same\n * element twice, as the first unsubscription will terminate observation.\n *\n * @param el - Element\n *\n * @return Element size observable\n */\nexport function watchElementSize(\n el: HTMLElement\n): Observable {\n return observer$\n .pipe(\n tap(observer => observer.observe(el)),\n switchMap(observer => entry$\n .pipe(\n filter(({ target }) => target === el),\n finalize(() => observer.unobserve(el)),\n map(({ contentRect }) => ({\n width: contentRect.width,\n height: contentRect.height\n }))\n )\n ),\n startWith(getElementSize(el))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Key\n */\nexport interface Key {\n type: string /* Key type */\n claim(): void /* Key claim */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether an element may receive keyboard input\n *\n * @param el - Element\n *\n * @return Test result\n */\nexport function isSusceptibleToKeyboard(el: HTMLElement): boolean {\n switch (el.tagName) {\n\n /* Form elements */\n case \"INPUT\":\n case \"SELECT\":\n case \"TEXTAREA\":\n return true\n\n /* Everything else */\n default:\n return el.isContentEditable\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch keyboard\n *\n * @return Keyboard observable\n */\nexport function watchKeyboard(): Observable {\n return fromEvent(window, \"keydown\")\n .pipe(\n filter(ev => !(ev.metaKey || ev.ctrlKey)),\n map(ev => ({\n type: ev.key,\n claim() {\n ev.preventDefault()\n ev.stopPropagation()\n }\n })),\n share()\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { BehaviorSubject, Subject } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location\n *\n * This function will return a `URL` object (and not `Location`) in order to\n * normalize typings across the application. Furthermore, locations need to be\n * tracked without setting them and `Location` is a singleton which represents\n * the current location.\n *\n * @return URL\n */\nexport function getLocation(): URL {\n return new URL(location.href)\n}\n\n/**\n * Set location\n *\n * @param url - URL to change to\n */\nexport function setLocation(url: URL): void {\n location.href = url.href\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Check whether a URL is a local link or a file (except `.html`)\n *\n * @param url - URL or HTML anchor element\n * @param ref - Reference URL\n *\n * @return Test result\n */\nexport function isLocalLocation(\n url: URL | HTMLAnchorElement,\n ref: URL | Location = location\n): boolean {\n return url.host === ref.host\n && /^(?:\\/[\\w-]+)*(?:\\/?|\\.html)$/i.test(url.pathname)\n}\n\n/**\n * Check whether a URL is an anchor link on the current page\n *\n * @param url - URL or HTML anchor element\n * @param ref - Reference URL\n *\n * @return Test result\n */\nexport function isAnchorLocation(\n url: URL | HTMLAnchorElement,\n ref: URL | Location = location\n): boolean {\n return url.pathname === ref.pathname\n && url.hash.length > 0\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location\n *\n * @return Location subject\n */\nexport function watchLocation(): Subject {\n return new BehaviorSubject(getLocation())\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map, shareReplay, take } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n location$: Observable /* Location observable */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location base\n *\n * @return Location base observable\n */\nexport function watchLocationBase(\n base: string, { location$ }: WatchOptions\n): Observable {\n return location$\n .pipe(\n take(1),\n map(({ href }) => new URL(base, href)\n .toString()\n .replace(/\\/$/, \"\")\n ),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share, startWith } from \"rxjs/operators\"\n\nimport { createElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location hash\n *\n * @return Location hash\n */\nexport function getLocationHash(): string {\n return location.hash.substring(1)\n}\n\n/**\n * Set location hash\n *\n * Setting a new fragment identifier via `location.hash` will have no effect\n * if the value doesn't change. When a new fragment identifier is set, we want\n * the browser to target the respective element at all times, which is why we\n * use this dirty little trick.\n *\n * @param hash - Location hash\n */\nexport function setLocationHash(hash: string): void {\n const el = createElement(\"a\")\n el.href = hash\n el.addEventListener(\"click\", ev => ev.stopPropagation())\n el.click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location hash\n *\n * @return Location hash observable\n */\nexport function watchLocationHash(): Observable {\n return fromEvent(window, \"hashchange\")\n .pipe(\n map(getLocationHash),\n startWith(getLocationHash()),\n filter(hash => hash.length > 0),\n share()\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { shareReplay, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch media query\n *\n * @param query - Media query\n *\n * @return Media observable\n */\nexport function watchMedia(query: string): Observable {\n const media = matchMedia(query)\n return new Observable(subscriber => {\n media.addListener(ev => subscriber.next(ev.matches))\n })\n .pipe(\n startWith(media.matches),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"../element\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle\n */\nexport type Toggle =\n | \"drawer\" /* Toggle for drawer */\n | \"search\" /* Toggle for search */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle map\n */\nconst toggles: Record = {\n drawer: getElementOrThrow(`[data-md-toggle=drawer]`),\n search: getElementOrThrow(`[data-md-toggle=search]`)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve the value of a toggle\n *\n * @param name - Toggle\n *\n * @return Toggle value\n */\nexport function getToggle(name: Toggle): boolean {\n return toggles[name].checked\n}\n\n/**\n * Set toggle\n *\n * Simulating a click event seems to be the most cross-browser compatible way\n * of changing the value while also emitting a `change` event. Before, Material\n * used `CustomEvent` to programmatically change the value of a toggle, but this\n * is a much simpler and cleaner solution which doesn't require a polyfill.\n *\n * @param name - Toggle\n * @param value - Toggle value\n */\nexport function setToggle(name: Toggle, value: boolean): void {\n if (toggles[name].checked !== value)\n toggles[name].click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch toggle\n *\n * @param name - Toggle\n *\n * @return Toggle value observable\n */\nexport function watchToggle(name: Toggle): Observable {\n const el = toggles[name]\n return fromEvent(el, \"change\")\n .pipe(\n map(() => el.checked),\n startWith(el.checked)\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport offset\n */\nexport interface ViewportOffset {\n x: number /* Horizontal offset */\n y: number /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport offset\n *\n * On iOS Safari, viewport offset can be negative due to overflow scrolling.\n * As this may induce strange behaviors downstream, we'll just limit it to 0.\n *\n * @return Viewport offset\n */\nexport function getViewportOffset(): ViewportOffset {\n return {\n x: Math.max(0, pageXOffset),\n y: Math.max(0, pageYOffset)\n }\n}\n\n/**\n * Set viewport offset\n *\n * @param offset - Viewport offset\n */\nexport function setViewportOffset(\n { x, y }: Partial\n): void {\n window.scrollTo(x || 0, y || 0)\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport offset\n *\n * @return Viewport offset observable\n */\nexport function watchViewportOffset(): Observable {\n return merge(\n fromEvent(window, \"scroll\", { passive: true }),\n fromEvent(window, \"resize\", { passive: true })\n )\n .pipe(\n map(getViewportOffset),\n startWith(getViewportOffset())\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport size\n */\nexport interface ViewportSize {\n width: number /* Viewport width */\n height: number /* Viewport height */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport size\n *\n * @return Viewport size\n */\nexport function getViewportSize(): ViewportSize {\n return {\n width: innerWidth,\n height: innerHeight\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport size\n *\n * @return Viewport size observable\n */\nexport function watchViewportSize(): Observable {\n return fromEvent(window, \"resize\", { passive: true })\n .pipe(\n map(getViewportSize),\n startWith(getViewportSize())\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n map,\n shareReplay\n} from \"rxjs/operators\"\n\nimport { Header } from \"components\"\n\nimport {\n ViewportOffset,\n watchViewportOffset\n} from \"../offset\"\nimport {\n ViewportSize,\n watchViewportSize\n} from \"../size\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport\n */\nexport interface Viewport {\n offset: ViewportOffset /* Viewport offset */\n size: ViewportSize /* Viewport size */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch at options\n */\ninterface WatchAtOptions {\n header$: Observable
/* Header observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport\n *\n * @return Viewport observable\n */\nexport function watchViewport(): Observable {\n return combineLatest([\n watchViewportOffset(),\n watchViewportSize()\n ])\n .pipe(\n map(([offset, size]) => ({ offset, size })),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n\n/**\n * Watch viewport relative to element\n *\n * @param el - Element\n * @param options - Options\n *\n * @return Viewport observable\n */\nexport function watchViewportAt(\n el: HTMLElement, { header$, viewport$ }: WatchAtOptions\n): Observable {\n const size$ = viewport$\n .pipe(\n distinctUntilKeyChanged(\"size\")\n )\n\n /* Compute element offset */\n const offset$ = combineLatest([size$, header$])\n .pipe(\n map((): ViewportOffset => ({\n x: el.offsetLeft,\n y: el.offsetTop\n }))\n )\n\n /* Compute relative viewport, return hot observable */\n return combineLatest([header$, viewport$, offset$])\n .pipe(\n map(([{ height }, { offset, size }, { x, y }]) => ({\n offset: {\n x: offset.x - x,\n y: offset.y - y + height\n },\n size\n }))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject, fromEvent } from \"rxjs\"\nimport {\n map,\n share,\n switchMapTo,\n tap,\n throttle\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Worker message\n */\nexport interface WorkerMessage {\n type: unknown /* Message type */\n data?: unknown /* Message data */\n}\n\n/**\n * Worker handler\n *\n * @template T - Message type\n */\nexport interface WorkerHandler<\n T extends WorkerMessage\n> {\n tx$: Subject /* Message transmission subject */\n rx$: Observable /* Message receive observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n *\n * @template T - Worker message type\n */\ninterface WatchOptions {\n tx$: Observable /* Message transmission observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch a web worker\n *\n * This function returns an observable that will send all values emitted by the\n * message observable to the web worker. Web worker communication is expected\n * to be bidirectional (request-response) and synchronous. Messages that are\n * emitted during a pending request are throttled, the last one is emitted.\n *\n * @param worker - Web worker\n * @param options - Options\n *\n * @return Worker message observable\n */\nexport function watchWorker(\n worker: Worker, { tx$ }: WatchOptions\n): Observable {\n\n /* Intercept messages from worker-like objects */\n const rx$ = fromEvent(worker, \"message\")\n .pipe(\n map(({ data }) => data)\n )\n\n /* Send and receive messages, return hot observable */\n return tx$\n .pipe(\n throttle(() => rx$, { leading: true, trailing: true }),\n tap(message => worker.postMessage(message)),\n switchMapTo(rx$),\n share()\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchTransformFn } from \"integrations\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Feature flags\n */\nexport type Feature =\n | \"navigation.tabs\" /* Tabs navigation */\n | \"navigation.instant\" /* Instant loading */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Configuration\n */\nexport interface Config {\n base: string /* Base URL */\n features: Feature[] /* Feature flags */\n search: {\n worker: string /* Worker URL */\n index?: Promise /* Promise resolving with index */\n transform?: SearchTransformFn /* Transformation function */\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Ensure that the given value is a valid configuration\n *\n * We could use `jsonschema` or any other schema validation framework, but that\n * would just add more bloat to the bundle, so we'll keep it plain and simple.\n *\n * @param config - Configuration\n *\n * @return Test result\n */\nexport function isConfig(config: any): config is Config {\n return typeof config === \"object\"\n && typeof config.base === \"string\"\n && typeof config.features === \"object\"\n && typeof config.search === \"object\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// tslint:disable no-null-keyword\n\nimport { JSX as JSXInternal } from \"preact\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * HTML attributes\n */\ntype Attributes =\n & JSXInternal.HTMLAttributes\n & JSXInternal.SVGAttributes\n & Record\n\n/**\n * Child element\n */\ntype Child =\n | HTMLElement\n | Text\n | string\n | number\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Append a child node to an element\n *\n * @param el - Element\n * @param child - Child node(s)\n */\nfunction appendChild(el: HTMLElement, child: Child | Child[]): void {\n\n /* Handle primitive types (including raw HTML) */\n if (typeof child === \"string\" || typeof child === \"number\") {\n el.innerHTML += child.toString()\n\n /* Handle nodes */\n } else if (child instanceof Node) {\n el.appendChild(child)\n\n /* Handle nested children */\n } else if (Array.isArray(child)) {\n for (const node of child)\n appendChild(el, node)\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * JSX factory\n *\n * @param tag - HTML tag\n * @param attributes - HTML attributes\n * @param children - Child elements\n *\n * @return Element\n */\nexport function h(\n tag: string, attributes: Attributes | null, ...children: Child[]\n): HTMLElement {\n const el = document.createElement(tag)\n\n /* Set attributes, if any */\n if (attributes)\n for (const attr of Object.keys(attributes))\n if (typeof attributes[attr] !== \"boolean\")\n el.setAttribute(attr, attributes[attr])\n else if (attributes[attr])\n el.setAttribute(attr, \"\")\n\n /* Append child nodes */\n for (const child of children)\n appendChild(el, child)\n\n /* Return element */\n return el\n}\n\n/* ----------------------------------------------------------------------------\n * Namespace\n * ------------------------------------------------------------------------- */\n\nexport declare namespace h {\n namespace JSX {\n type Element = HTMLElement\n type IntrinsicElements = JSXInternal.IntrinsicElements\n }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, defer, of } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Cache the last value emitted by an observable in session storage\n *\n * If the key is not found in session storage, the factory is executed and the\n * latest value emitted will automatically be persisted to sessions storage.\n * Note that the values emitted by the returned observable must be serializable\n * as `JSON`, or data will be lost.\n *\n * @template T - Value type\n *\n * @param key - Cache key\n * @param factory - Observable factory\n *\n * @return Value observable\n */\nexport function cache(\n key: string, factory: () => Observable\n): Observable {\n return defer(() => {\n const data = sessionStorage.getItem(key)\n if (data) {\n return of(JSON.parse(data) as T)\n\n /* Retrieve value from observable factory and write to storage */\n } else {\n const value$ = factory()\n value$.subscribe(value => {\n try {\n sessionStorage.setItem(key, JSON.stringify(value))\n } catch (err) {\n /* Uncritical, just swallow */\n }\n })\n\n /* Return value */\n return value$\n }\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { getElementOrThrow } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Translation keys\n */\ntype TranslateKey =\n | \"clipboard.copy\" /* Copy to clipboard */\n | \"clipboard.copied\" /* Copied to clipboard */\n | \"search.config.lang\" /* Search language */\n | \"search.config.pipeline\" /* Search pipeline */\n | \"search.config.separator\" /* Search separator */\n | \"search.result.placeholder\" /* Type to start searching */\n | \"search.result.none\" /* No matching documents */\n | \"search.result.one\" /* 1 matching document */\n | \"search.result.other\" /* # matching documents */\n | \"search.result.more.one\" /* 1 more on this page */\n | \"search.result.more.other\" /* # more on this page */\n | \"search.result.term.missing\" /* Missing */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Translations\n */\nlet lang: Record\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Translate the given key\n *\n * @param key - Key to be translated\n * @param value - Value to be replaced\n *\n * @return Translation\n */\nexport function translate(\n key: TranslateKey, value?: string | number\n): string {\n if (typeof lang === \"undefined\") {\n const el = getElementOrThrow(\"#__lang\")\n lang = JSON.parse(el.textContent!)\n }\n if (typeof lang[key] === \"undefined\") {\n throw new ReferenceError(`Invalid translation: ${key}`)\n }\n return typeof value !== \"undefined\"\n ? lang[key].replace(\"#\", value.toString())\n : lang[key]\n}\n\n/**\n * Truncate a string after the given number of characters\n *\n * This is not a very reasonable approach, since the summaries kind of suck.\n * It would be better to create something more intelligent, highlighting the\n * search occurrences and making a better summary out of it, but this note was\n * written three years ago, so who knows if we'll ever fix it.\n *\n * @param value - Value to be truncated\n * @param n - Number of characters\n *\n * @return Truncated value\n */\nexport function truncate(value: string, n: number): string {\n let i = n\n if (value.length > i) {\n while (value[i] !== \" \" && --i > 0); // tslint:disable-line\n return `${value.substring(0, i)}...`\n }\n return value\n}\n\n/**\n * Round a number for display with source facts\n *\n * This is a reverse engineered version of GitHub's weird rounding algorithm\n * for stars, forks and all other numbers. While all numbers below `1,000` are\n * returned as-is, bigger numbers are converted to fixed numbers:\n *\n * - `1,049` => `1k`\n * - `1,050` => `1.1k`\n * - `1,949` => `1.9k`\n * - `1,950` => `2k`\n *\n * @param value - Original value\n *\n * @return Rounded value\n */\nexport function round(value: number): string {\n if (value > 999) {\n const digits = +((value - 950) % 1000 > 99)\n return `${((value + 0.000001) / 1000).toFixed(digits)}k`\n } else {\n return value.toString()\n }\n}\n\n/**\n * Simple hash function\n *\n * @see https://bit.ly/2wsVjJ4 - Original source\n *\n * @param value - Value to be hashed\n *\n * @return Hash as 32bit integer\n */\nexport function hash(value: string): number {\n let h = 0\n for (let i = 0, len = value.length; i < len; i++) {\n h = ((h << 5) - h) + value.charCodeAt(i)\n h |= 0 // Convert to 32bit integer\n }\n return h\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./header\"\nexport * from \"./main\"\nexport * from \"./navigation\"\nexport * from \"./search\"\nexport * from \"./shared\"\nexport * from \"./tabs\"\nexport * from \"./toc\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport * as ClipboardJS from \"clipboard\"\nimport { NEVER, Observable, Subject } from \"rxjs\"\nimport { mapTo, share, tap } from \"rxjs/operators\"\n\nimport { getElements } from \"browser\"\nimport { renderClipboardButton } from \"templates\"\nimport { translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n document$: Observable /* Document observable */\n dialog$: Subject /* Dialog subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up clipboard\n *\n * This function implements the Clipboard.js integration and injects a button\n * into all code blocks when the document changes.\n *\n * @param options - Options\n *\n * @return Clipboard observable\n */\nexport function setupClipboard(\n { document$, dialog$ }: SetupOptions\n): Observable {\n if (!ClipboardJS.isSupported())\n return NEVER\n\n /* Inject 'copy-to-clipboard' buttons */\n document$.subscribe(() => {\n const blocks = getElements(\"pre > code\")\n blocks.forEach((block, index) => {\n const parent = block.parentElement!\n parent.id = `__code_${index}`\n parent.insertBefore(\n renderClipboardButton(parent.id),\n block\n )\n })\n })\n\n /* Initialize clipboard */\n const clipboard$ = new Observable(subscriber => {\n new ClipboardJS(\".md-clipboard\").on(\"success\", ev => subscriber.next(ev))\n })\n .pipe(\n share()\n )\n\n /* Display notification for clipboard event */\n clipboard$\n .pipe(\n tap(ev => ev.clearSelection()),\n mapTo(translate(\"clipboard.copied\"))\n )\n .subscribe(dialog$)\n\n /* Return clipboard */\n return clipboard$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Subject, animationFrameScheduler, noop, of } from \"rxjs\"\nimport {\n delay,\n map,\n observeOn,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { createElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n duration?: number /* Display duration (default: 2s) */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up dialog\n *\n * @param options - Options\n *\n * @return Dialog observable\n */\nexport function setupDialog(\n { duration }: SetupOptions = {}\n): Subject {\n const dialog$ = new Subject()\n\n /* Create dialog */\n const dialog = createElement(\"div\") // TODO: improve scoping\n dialog.classList.add(\"md-dialog\", \"md-typeset\")\n\n /* Display dialog */\n dialog$\n .pipe(\n switchMap(text => of(document.body) // useComponent(\"container\")\n .pipe(\n map(container => container.appendChild(dialog)),\n observeOn(animationFrameScheduler),\n delay(1), // Strangley it doesnt work when we push things to the new animation frame...\n tap(el => {\n el.innerHTML = text\n el.setAttribute(\"data-md-state\", \"open\")\n }),\n delay(duration || 2000),\n tap(el => el.removeAttribute(\"data-md-state\")),\n delay(400),\n tap(el => {\n el.innerHTML = \"\"\n el.remove()\n })\n )\n )\n )\n .subscribe(noop)\n\n /* Return dialog */\n return dialog$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, Subject, from, fromEvent, merge, of } from \"rxjs\"\nimport {\n bufferCount,\n catchError,\n debounceTime,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n filter,\n map,\n sample,\n share,\n skip,\n switchMap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n Viewport,\n ViewportOffset,\n getElement,\n isAnchorLocation,\n isLocalLocation,\n replaceElement,\n setLocation,\n setLocationHash,\n setToggle,\n setViewportOffset\n} from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * History state\n */\ninterface State {\n url: URL /* State URL */\n offset?: ViewportOffset /* State viewport offset */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n document$: Subject /* Document subject */\n location$: Subject /* Location subject */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up instant loading\n *\n * When fetching, theoretically, we could use `responseType: \"document\"`, but\n * since all MkDocs links are relative, we need to make sure that the current\n * location matches the document we just loaded. Otherwise any relative links\n * in the document could use the old location.\n *\n * This is the reason why we need to synchronize history events and the process\n * of fetching the document for navigation changes (except `popstate` events):\n *\n * 1. Fetch document via `XMLHTTPRequest`\n * 2. Set new location via `history.pushState`\n * 3. Parse and emit fetched document\n *\n * For `popstate` events, we must not use `history.pushState`, or the forward\n * history will be irreversibly overwritten. In case the request fails, the\n * location change is dispatched regularly.\n *\n * @param options - Options\n */\nexport function setupInstantLoading(\n urls: string[], { document$, viewport$, location$ }: SetupOptions\n): void {\n\n /* Disable automatic scroll restoration */\n if (\"scrollRestoration\" in history)\n history.scrollRestoration = \"manual\"\n\n /* Hack: ensure that reloads restore viewport offset */\n fromEvent(window, \"beforeunload\")\n .subscribe(() => {\n history.scrollRestoration = \"auto\"\n })\n\n /* Hack: ensure absolute favicon link to omit 404s on document switch */\n const favicon = getElement(`link[rel=\"shortcut icon\"]`)\n if (typeof favicon !== \"undefined\")\n favicon.href = favicon.href // tslint:disable-line no-self-assignment\n\n /* Intercept link clicks and convert to state change */\n const state$ = fromEvent(document.body, \"click\")\n .pipe(\n filter(ev => !(ev.metaKey || ev.ctrlKey)),\n switchMap(ev => {\n if (ev.target instanceof HTMLElement) {\n const el = ev.target.closest(\"a\")\n if (\n el && !el.target &&\n isLocalLocation(el) &&\n urls.includes(el.href)\n ) {\n if (!isAnchorLocation(el))\n ev.preventDefault()\n return of(el)\n }\n }\n return NEVER\n }),\n map(el => ({ url: new URL(el.href) })),\n share()\n )\n\n /* Always close search on link click */\n state$.subscribe(() => {\n setToggle(\"search\", false)\n })\n\n /* Filter state changes to dispatch */\n const push$ = state$\n .pipe(\n filter(({ url }) => !isAnchorLocation(url)),\n share()\n )\n\n /* Intercept popstate events (history back and forward) */\n const pop$ = fromEvent(window, \"popstate\")\n .pipe(\n filter(ev => ev.state !== null),\n map(ev => ({\n url: new URL(location.href),\n offset: ev.state\n })),\n share()\n )\n\n /* Emit location change */\n merge(push$, pop$)\n .pipe(\n distinctUntilChanged((prev, next) => prev.url.href === next.url.href),\n map(({ url }) => url)\n )\n .subscribe(location$)\n\n /* Fetch document on location change */\n const ajax$ = location$\n .pipe(\n distinctUntilKeyChanged(\"pathname\"),\n skip(1),\n switchMap(url => from(fetch(url.href, {\n credentials: \"same-origin\"\n }).then(res => res.text()))\n .pipe(\n catchError(() => {\n setLocation(url)\n return NEVER\n })\n )\n ),\n share()\n )\n\n /* Set new location as soon as the document was fetched */\n push$\n .pipe(\n sample(ajax$)\n )\n .subscribe(({ url }) => {\n history.pushState({}, \"\", url.toString())\n })\n\n /* Parse and emit document */\n const dom = new DOMParser()\n ajax$\n .pipe(\n map(response => dom.parseFromString(response, \"text/html\"))\n )\n .subscribe(document$)\n\n /* Intercept instant loading */\n const instant$ = merge(push$, pop$)\n .pipe(\n sample(document$)\n )\n\n // TODO: this must be combined with search scroll restoration on mobile\n instant$.subscribe(({ url, offset }) => {\n if (url.hash && !offset) {\n setLocationHash(url.hash)\n } else {\n setViewportOffset(offset || { y: 0 })\n }\n })\n\n /* Replace document metadata */\n instant$\n .pipe(\n withLatestFrom(document$)\n )\n .subscribe(([, { title, head }]) => {\n document.title = title\n\n /* Replace meta tags */\n for (const selector of [\n `link[rel=\"canonical\"]`,\n `meta[name=\"author\"]`,\n `meta[name=\"description\"]`\n ]) {\n const next = getElement(selector, head)\n const prev = getElement(selector, document.head)\n if (\n typeof next !== \"undefined\" &&\n typeof prev !== \"undefined\"\n ) {\n replaceElement(prev, next)\n }\n }\n\n /* Finished, dispatch document switch event */\n document.dispatchEvent(new CustomEvent(\"DOMContentSwitch\"))\n })\n\n /* Debounce update of viewport offset */\n viewport$\n .pipe(\n debounceTime(250),\n distinctUntilKeyChanged(\"offset\")\n )\n .subscribe(({ offset }) => {\n history.replaceState(offset, \"\")\n })\n\n /* Set viewport offset from history */\n merge(state$, pop$)\n .pipe(\n bufferCount(2, 1),\n filter(([prev, next]) => {\n return prev.url.pathname === next.url.pathname\n && !isAnchorLocation(next.url)\n }),\n map(([, state]) => state)\n )\n .subscribe(({ offset }) => {\n setViewportOffset(offset || { y: 0 })\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport {\n filter,\n map,\n share,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n Key,\n getActiveElement,\n getElement,\n getElements,\n getToggle,\n isSusceptibleToKeyboard,\n setElementFocus,\n setElementSelection,\n setToggle,\n watchKeyboard\n} from \"browser\"\nimport { useComponent } from \"components\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Keyboard mode\n */\nexport type KeyboardMode =\n | \"global\" /* Global */\n | \"search\" /* Search is open */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Keyboard\n */\nexport interface Keyboard extends Key {\n mode: KeyboardMode /* Keyboard mode */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up keyboard\n *\n * This function will set up the keyboard handlers and ensure that keys are\n * correctly propagated. Currently there are two modes:\n *\n * - `global`: This mode is active when the search is closed. It is intended\n * to assign hotkeys to specific functions of the site. Currently the search,\n * previous and next page can be triggered.\n *\n * - `search`: This mode is active when the search is open. It maps certain\n * navigational keys to offer search results that can be entirely navigated\n * through keyboard input.\n *\n * The keyboard observable is returned and can be used to monitor the keyboard\n * in order toassign further hotkeys to custom functions.\n *\n * @return Keyboard observable\n */\nexport function setupKeyboard(): Observable {\n const keyboard$ = watchKeyboard()\n .pipe(\n map(key => ({\n mode: getToggle(\"search\") ? \"search\" : \"global\",\n ...key\n })),\n filter(({ mode }) => {\n if (mode === \"global\") {\n const active = getActiveElement()\n if (typeof active !== \"undefined\")\n return !isSusceptibleToKeyboard(active)\n }\n return true\n }),\n share()\n )\n\n /* Set up search keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"search\"),\n withLatestFrom(\n useComponent(\"search-query\"),\n useComponent(\"search-result\")\n )\n )\n .subscribe(([key, query, result]) => {\n const active = getActiveElement()\n switch (key.type) {\n\n /* Enter: prevent form submission */\n case \"Enter\":\n if (active === query)\n key.claim()\n break\n\n /* Escape or Tab: close search */\n case \"Escape\":\n case \"Tab\":\n setToggle(\"search\", false)\n setElementFocus(query, false)\n break\n\n /* Vertical arrows: select previous or next search result */\n case \"ArrowUp\":\n case \"ArrowDown\":\n if (typeof active === \"undefined\") {\n setElementFocus(query)\n } else {\n const els = [query, ...getElements(\n \":not(details) > [href], summary, details[open] [href]\",\n result\n )]\n const i = Math.max(0, (\n Math.max(0, els.indexOf(active)) + els.length + (\n key.type === \"ArrowUp\" ? -1 : +1\n )\n ) % els.length)\n setElementFocus(els[i])\n }\n\n /* Prevent scrolling of page */\n key.claim()\n break\n\n /* All other keys: hand to search query */\n default:\n if (query !== getActiveElement())\n setElementFocus(query)\n }\n })\n\n /* Set up global keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\"),\n withLatestFrom(useComponent(\"search-query\"))\n )\n .subscribe(([key, query]) => {\n switch (key.type) {\n\n /* Open search and select query */\n case \"f\":\n case \"s\":\n case \"/\":\n setElementFocus(query)\n setElementSelection(query)\n key.claim()\n break\n\n /* Go to previous page */\n case \"p\":\n case \",\":\n const prev = getElement(\"[href][rel=prev]\")\n if (typeof prev !== \"undefined\")\n prev.click()\n break\n\n /* Go to next page */\n case \"n\":\n case \".\":\n const next = getElement(\"[href][rel=next]\")\n if (typeof next !== \"undefined\")\n next.click()\n break\n }\n })\n\n /* Return keyboard */\n return keyboard$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { EMPTY, Observable, of } from \"rxjs\"\nimport {\n distinctUntilChanged,\n map,\n scan,\n shareReplay,\n switchMap\n} from \"rxjs/operators\"\n\nimport { getElement, replaceElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Component\n */\nexport type Component =\n | \"announce\" /* Announcement bar */\n | \"container\" /* Container */\n | \"header\" /* Header */\n | \"header-title\" /* Header title */\n | \"main\" /* Main area */\n | \"navigation\" /* Navigation */\n | \"search\" /* Search */\n | \"search-query\" /* Search input */\n | \"search-reset\" /* Search reset */\n | \"search-result\" /* Search results */\n | \"skip\" /* Skip link */\n | \"tabs\" /* Tabs */\n | \"toc\" /* Table of contents */\n\n/**\n * Component map\n */\nexport type ComponentMap = {\n [P in Component]?: HTMLElement\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Component map observable\n */\nlet components$: Observable\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up bindings to components with given names\n *\n * This function will maintain bindings to the elements identified by the given\n * names in-between document switches and update the elements in-place.\n *\n * @param names - Component names\n * @param options - Options\n */\nexport function setupComponents(\n names: Component[], { document$ }: WatchOptions\n): void {\n components$ = document$\n .pipe(\n\n /* Build component map */\n map(document => names.reduce((components, name) => {\n const el = getElement(`[data-md-component=${name}]`, document)\n return {\n ...components,\n ...typeof el !== \"undefined\" ? { [name]: el } : {}\n }\n }, {})),\n\n /* Re-compute component map on document switch */\n scan((prev, next) => {\n for (const name of names) {\n switch (name) {\n\n /* Top-level components: update */\n case \"announce\":\n case \"header-title\":\n case \"container\":\n case \"skip\":\n if (name in prev && typeof prev[name] !== \"undefined\") {\n replaceElement(prev[name]!, next[name]!)\n prev[name] = next[name]\n }\n break\n\n /* All other components: rebind */\n default:\n if (typeof next[name] !== \"undefined\")\n prev[name] = getElement(`[data-md-component=${name}]`)\n else\n delete prev[name]\n }\n }\n return prev\n }),\n\n /* Convert to hot observable */\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n\n/**\n * Retrieve a component\n *\n * The returned observable will only re-emit if the element changed, i.e. if\n * it was replaced from a document which was switched to.\n *\n * @template T - Element type\n *\n * @param name - Component name\n *\n * @return Component observable\n */\nexport function useComponent(\n name: \"search-query\"\n): Observable\nexport function useComponent(\n name: Component\n): Observable\nexport function useComponent(\n name: Component\n): Observable {\n return components$\n .pipe(\n switchMap(components => (\n typeof components[name] !== \"undefined\"\n ? of(components[name] as T)\n : EMPTY\n )),\n distinctUntilChanged()\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set anchor blur\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is blurred\n */\nexport function setAnchorBlur(\n el: HTMLElement, value: boolean\n): void {\n el.setAttribute(\"data-md-state\", value ? \"blur\" : \"\")\n}\n\n/**\n * Reset anchor blur\n *\n * @param el - Anchor element\n */\nexport function resetAnchorBlur(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set anchor active\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is active\n */\nexport function setAnchorActive(\n el: HTMLElement, value: boolean\n): void {\n el.classList.toggle(\"md-nav__link--active\", value)\n}\n\n/**\n * Reset anchor active\n *\n * @param el - Anchor element\n */\nexport function resetAnchorActive(\n el: HTMLElement\n): void {\n el.classList.remove(\"md-nav__link--active\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./sidebar\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h, translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a 'copy-to-clipboard' button\n *\n * @param id - Unique identifier\n *\n * @return Element\n */\nexport function renderClipboardButton(id: string) {\n return (\n code`}\n >\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n SearchDocument,\n SearchMetadata,\n SearchResult\n} from \"integrations/search\"\nimport { h, translate, truncate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Render flag\n */\nconst enum Flag {\n TEASER = 1, /* Render teaser */\n PARENT = 2 /* Render as parent */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper function\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search document\n *\n * @param section - Search document\n * @param flag - Render flags\n *\n * @return Element\n */\nfunction renderSearchDocument(\n document: SearchDocument & SearchMetadata, flag: Flag\n) {\n const parent = flag & Flag.PARENT\n const teaser = flag & Flag.TEASER\n\n /* Render missing query terms */\n const missing = Object.keys(document.terms)\n .filter(key => !document.terms[key])\n .map(key => [{key}, \" \"])\n .flat()\n .slice(0, -1)\n\n /* Render article or section, depending on flags */\n const url = document.location.replace(/%20/g, \"+\")\n return (\n \n \n {parent > 0 &&
}\n

{document.title}

\n {teaser > 0 && document.text.length > 0 &&\n

\n {truncate(document.text, 320)}\n

\n }\n {teaser > 0 && missing.length > 0 &&\n

\n {translate(\"search.result.term.missing\")}: {...missing}\n

\n }\n \n \n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search result\n *\n * @param result - Search result\n *\n * @return Element\n */\nexport function renderSearchResult(\n result: SearchResult, threshold: number = Infinity\n) {\n const docs = [...result]\n\n /* Find and extract parent article */\n const parent = docs.findIndex(doc => !doc.location.includes(\"#\"))\n const [article] = docs.splice(parent, 1)\n\n /* Determine last index above threshold */\n let index = docs.findIndex(doc => doc.score < threshold)\n if (index === -1)\n index = docs.length\n\n /* Partition sections */\n const best = docs.slice(0, index)\n const more = docs.slice(index)\n\n /* Render children */\n const children = [\n renderSearchDocument(article, Flag.PARENT | +(!parent && index === 0)),\n ...best.map(section => renderSearchDocument(section, Flag.TEASER)),\n ...more.length ? [\n
\n \n {more.length > 0 && more.length === 1\n ? translate(\"search.result.more.one\")\n : translate(\"search.result.more.other\", more.length)\n }\n \n {...more.map(section => renderSearchDocument(section, Flag.TEASER))}\n
\n ] : []\n ]\n\n /* Render search result */\n return (\n
  • \n {children}\n
    • \n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SourceFacts } from \"patches/source\"\nimport { h } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render source facts\n *\n * @param facts - Source facts\n *\n * @return Element\n */\nexport function renderSource(\n facts: SourceFacts\n) {\n return (\n
      \n {facts.map(fact => (\n
    • {fact}
      • \n ))}\n
    \n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a table inside a wrapper to improve scrolling on mobile\n *\n * @param table - Table element\n *\n * @return Element\n */\nexport function renderTable(\n table: HTMLTableElement\n) {\n return (\n
    \n
    \n {table}\n
    \n
    \n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar offset\n *\n * @param el - Sidebar element\n * @param value - Sidebar offset\n */\nexport function setSidebarOffset(\n el: HTMLElement, value: number\n): void {\n el.style.top = `${value}px`\n}\n\n/**\n * Reset sidebar offset\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarOffset(\n el: HTMLElement\n): void {\n el.style.top = \"\"\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar height\n *\n * @param el - Sidebar element\n * @param value - Sidebar height\n */\nexport function setSidebarHeight(\n el: HTMLElement, value: number\n): void {\n el.style.height = `${value}px`\n}\n\n/**\n * Reset sidebar height\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarHeight(\n el: HTMLElement\n): void {\n el.style.height = \"\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./react\"\nexport * from \"./set\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search transformation function\n *\n * @param value - Query value\n *\n * @return Transformed query value\n */\nexport type SearchTransformFn = (value: string) => string\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Default transformation function\n *\n * 1. Search for terms in quotation marks and prepend a `+` modifier to denote\n * that the resulting document must contain all terms, converting the query\n * to an `AND` query (as opposed to the default `OR` behavior). While users\n * may expect terms enclosed in quotation marks to map to span queries, i.e.\n * for which order is important, `lunr` doesn't support them, so the best\n * we can do is to convert the terms to an `AND` query.\n *\n * 2. Replace control characters which are not located at the beginning of the\n * query or preceded by white space, or are not followed by a non-whitespace\n * character or are at the end of the query string. Furthermore, filter\n * unmatched quotation marks.\n *\n * 3. Trim excess whitespace from left and right.\n *\n * @param query - Query value\n *\n * @return Transformed query value\n */\nexport function defaultTransform(query: string): string {\n return query\n .split(/\"([^\"]+)\"/g) /* => 1 */\n .map((terms, index) => index & 1\n ? terms.replace(/^\\b|^(?![^\\x00-\\x7F]|$)|\\s+/g, \" +\")\n : terms\n )\n .join(\"\")\n .replace(/\"|(?:^|\\s+)[*+\\-:^~]+(?=\\s+|$)/g, \"\") /* => 2 */\n .trim() /* => 3 */\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n SearchDocument,\n SearchDocumentMap,\n setupSearchDocumentMap\n} from \"../document\"\nimport {\n SearchHighlightFactoryFn,\n setupSearchHighlighter\n} from \"../highlighter\"\nimport {\n SearchQueryTerms,\n getSearchQueryTerms,\n parseSearchQuery\n} from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index configuration\n */\nexport interface SearchIndexConfig {\n lang: string[] /* Search languages */\n separator: string /* Search separator */\n}\n\n/**\n * Search index document\n */\nexport interface SearchIndexDocument {\n location: string /* Document location */\n title: string /* Document title */\n text: string /* Document text */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index pipeline function\n */\nexport type SearchIndexPipelineFn =\n | \"trimmer\" /* Trimmer */\n | \"stopWordFilter\" /* Stop word filter */\n | \"stemmer\" /* Stemmer */\n\n/**\n * Search index pipeline\n */\nexport type SearchIndexPipeline = SearchIndexPipelineFn[]\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * This interfaces describes the format of the `search_index.json` file which\n * is automatically built by the MkDocs search plugin.\n */\nexport interface SearchIndex {\n config: SearchIndexConfig /* Search index configuration */\n docs: SearchIndexDocument[] /* Search index documents */\n index?: object /* Prebuilt index */\n pipeline?: SearchIndexPipeline /* Search index pipeline */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search metadata\n */\nexport interface SearchMetadata {\n score: number /* Score (relevance) */\n terms: SearchQueryTerms /* Search query terms */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport type SearchResult = Array<\n SearchDocument & SearchMetadata\n> // tslint:disable-line\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Compute the difference of two lists of strings\n *\n * @param a - 1st list of strings\n * @param b - 2nd list of strings\n *\n * @return Difference\n */\nfunction difference(a: string[], b: string[]): string[] {\n const [x, y] = [new Set(a), new Set(b)]\n return [\n ...new Set([...x].filter(value => !y.has(value)))\n ]\n}\n\n/* ----------------------------------------------------------------------------\n * Class\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * Note that `lunr` is injected via Webpack, as it will otherwise also be\n * bundled in the application bundle.\n */\nexport class Search {\n\n /**\n * Search document mapping\n *\n * A mapping of URLs (including hash fragments) to the actual articles and\n * sections of the documentation. The search document mapping must be created\n * regardless of whether the index was prebuilt or not, as `lunr` itself will\n * only store the actual index.\n */\n protected documents: SearchDocumentMap\n\n /**\n * Search highlight factory function\n */\n protected highlight: SearchHighlightFactoryFn\n\n /**\n * The underlying `lunr` search index\n */\n protected index: lunr.Index\n\n /**\n * Create the search integration\n *\n * @param data - Search index\n */\n public constructor({ config, docs, pipeline, index }: SearchIndex) {\n this.documents = setupSearchDocumentMap(docs)\n this.highlight = setupSearchHighlighter(config)\n\n /* Set separator for tokenizer */\n lunr.tokenizer.separator = new RegExp(config.separator)\n\n /* If no index was given, create it */\n if (typeof index === \"undefined\") {\n this.index = lunr(function() {\n\n /* Set up multi-language support */\n if (config.lang.length === 1 && config.lang[0] !== \"en\") {\n this.use((lunr as any)[config.lang[0]])\n } else if (config.lang.length > 1) {\n this.use((lunr as any).multiLanguage(...config.lang))\n }\n\n /* Compute functions to be removed from the pipeline */\n const fns = difference([\n \"trimmer\", \"stopWordFilter\", \"stemmer\"\n ], pipeline!)\n\n /* Remove functions from the pipeline for registered languages */\n for (const lang of config.lang.map(language => (\n language === \"en\" ? lunr : (lunr as any)[language]\n ))) {\n for (const fn of fns) {\n this.pipeline.remove(lang[fn])\n this.searchPipeline.remove(lang[fn])\n }\n }\n\n /* Set up fields and reference */\n this.field(\"title\", { boost: 1000 })\n this.field(\"text\")\n this.ref(\"location\")\n\n /* Index documents */\n for (const doc of docs)\n this.add(doc)\n })\n\n /* Handle prebuilt index */\n } else {\n this.index = lunr.Index.load(index)\n }\n }\n\n /**\n * Search for matching documents\n *\n * The search index which MkDocs provides is divided up into articles, which\n * contain the whole content of the individual pages, and sections, which only\n * contain the contents of the subsections obtained by breaking the individual\n * pages up at `h1` ... `h6`. As there may be many sections on different pages\n * with identical titles (for example within this very project, e.g. \"Usage\"\n * or \"Installation\"), they need to be put into the context of the containing\n * page. For this reason, section results are grouped within their respective\n * articles which are the top-level results that are returned.\n *\n * @param query - Query value\n *\n * @return Search results\n */\n public search(query: string): SearchResult[] {\n if (query) {\n try {\n const highlight = this.highlight(query)\n\n /* Parse query to extract clauses for analysis */\n const clauses = parseSearchQuery(query)\n .filter(clause => (\n clause.presence !== lunr.Query.presence.PROHIBITED\n ))\n\n /* Perform search and post-process results */\n const groups = this.index.search(`${query}*`)\n\n /* Apply post-query boosts based on title and search query terms */\n .reduce((results, { ref, score, matchData }) => {\n const document = this.documents.get(ref)\n if (typeof document !== \"undefined\") {\n const { location, title, text, parent } = document\n\n /* Compute and analyze search query terms */\n const terms = getSearchQueryTerms(\n clauses,\n Object.keys(matchData.metadata)\n )\n\n /* Highlight title and text and apply post-query boosts */\n const boost = +!parent + +Object.values(terms).every(t => t)\n results.push({\n location,\n title: highlight(title),\n text: highlight(text),\n score: score * (1 + boost),\n terms\n })\n }\n return results\n }, [])\n\n /* Sort search results again after applying boosts */\n .sort((a, b) => b.score - a.score)\n\n /* Group search results by page */\n .reduce((results, result) => {\n const document = this.documents.get(result.location)\n if (typeof document !== \"undefined\") {\n const ref = \"parent\" in document\n ? document.parent!.location\n : document.location\n results.set(ref, [...results.get(ref) || [], result])\n }\n return results\n }, new Map())\n\n /* Expand grouped search results */\n return [...groups.values()]\n\n /* Log errors to console (for now) */\n } catch {\n // tslint:disable-next-line no-console\n console.warn(`Invalid query: ${query} – see https://bit.ly/2s3ChXG`)\n }\n }\n\n /* Return nothing in case of error or empty query */\n return []\n }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// @ts-ignore\nimport * as escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport interface SearchDocument extends SearchIndexDocument {\n parent?: SearchIndexDocument /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @return Search document map\n */\nexport function setupSearchDocumentMap(\n docs: SearchIndexDocument[]\n): SearchDocumentMap {\n const documents = new Map()\n const parents = new Set()\n for (const doc of docs) {\n const [path, hash] = doc.location.split(\"#\")\n\n /* Extract location and title */\n const location = doc.location\n const title = doc.title\n\n /* Escape and cleanup text */\n const text = escapeHTML(doc.text)\n .replace(/\\s+(?=[,.:;!?])/g, \"\")\n .replace(/\\s+/g, \" \")\n\n /* Handle section */\n if (hash) {\n const parent = documents.get(path)!\n\n /* Ignore first section, override article */\n if (!parents.has(parent)) {\n parent.title = doc.title\n parent.text = text\n\n /* Remember that we processed the article */\n parents.add(parent)\n\n /* Add subsequent section */\n } else {\n documents.set(location, {\n location,\n title,\n text,\n parent\n })\n }\n\n /* Add article */\n } else {\n documents.set(location, {\n location,\n title,\n text\n })\n }\n }\n return documents\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndexConfig } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @param value - Value\n *\n * @return Highlighted value\n */\nexport type SearchHighlightFn = (value: string) => string\n\n/**\n * Search highlight factory function\n *\n * @param query - Query value\n *\n * @return Search highlight function\n */\nexport type SearchHighlightFactoryFn = (query: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n *\n * @return Search highlight factory function\n */\nexport function setupSearchHighlighter(\n config: SearchIndexConfig\n): SearchHighlightFactoryFn {\n const separator = new RegExp(config.separator, \"img\")\n const highlight = (_: unknown, data: string, term: string) => {\n return `${data}${term}`\n }\n\n /* Return factory function */\n return (query: string) => {\n query = query\n .replace(/[\\s*+\\-:~^]+/g, \" \")\n .trim()\n\n /* Create search term match expression */\n const match = new RegExp(`(^|${config.separator})(${\n query\n .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n .replace(separator, \"|\")\n })`, \"img\")\n\n /* Highlight string value */\n return value => value\n .replace(match, highlight)\n .replace(/<\\/mark>(\\s+)]*>/img, \"\\$1\")\n }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query clause\n */\nexport interface SearchQueryClause {\n presence: lunr.Query.presence /* Clause presence */\n term: string /* Clause term */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search query terms\n */\nexport type SearchQueryTerms = Record\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Parse a search query for analysis\n *\n * @param value - Query value\n *\n * @return Search query clauses\n */\nexport function parseSearchQuery(\n value: string\n): SearchQueryClause[] {\n const query = new (lunr as any).Query([\"title\", \"text\"])\n const parser = new (lunr as any).QueryParser(value, query)\n\n /* Parse and return query clauses */\n parser.parse()\n return query.clauses\n}\n\n/**\n * Analyze the search query clauses in regard to the search terms found\n *\n * @param query - Search query clauses\n * @param terms - Search terms\n *\n * @return Search query terms\n */\nexport function getSearchQueryTerms(\n query: SearchQueryClause[], terms: string[]\n): SearchQueryTerms {\n const clauses = new Set(query)\n\n /* Match query clauses against terms */\n const result: SearchQueryTerms = {}\n for (let t = 0; t < terms.length; t++)\n for (const clause of clauses)\n if (terms[t].startsWith(clause.term)) {\n result[clause.term] = true\n clauses.delete(clause)\n }\n\n /* Annotate unmatched query clauses */\n for (const clause of clauses)\n result[clause.term] = false\n\n /* Return query terms */\n return result\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n SETUP, /* Search index setup */\n READY, /* Search index ready */\n QUERY, /* Search query */\n RESULT /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n type: SearchMessageType.SETUP /* Message type */\n data: SearchIndex /* Message data */\n}\n\n/**\n * A message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n type: SearchMessageType.READY /* Message type */\n}\n\n/**\n * A message containing a search query\n */\nexport interface SearchQueryMessage {\n type: SearchMessageType.QUERY /* Message type */\n data: string /* Message data */\n}\n\n/**\n * A message containing results for a search query\n */\nexport interface SearchResultMessage {\n type: SearchMessageType.RESULT /* Message type */\n data: SearchResult[] /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message exchanged with the search worker\n */\nexport type SearchMessage =\n | SearchSetupMessage\n | SearchReadyMessage\n | SearchQueryMessage\n | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchSetupMessage(\n message: SearchMessage\n): message is SearchSetupMessage {\n return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchReadyMessage(\n message: SearchMessage\n): message is SearchReadyMessage {\n return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchQueryMessage(\n message: SearchMessage\n): message is SearchQueryMessage {\n return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchResultMessage(\n message: SearchMessage\n): message is SearchResultMessage {\n return message.type === SearchMessageType.RESULT\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject, asyncScheduler } from \"rxjs\"\nimport {\n map,\n observeOn,\n share,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, watchWorker } from \"browser\"\nimport { translate } from \"utilities\"\n\nimport { SearchIndex, SearchIndexPipeline } from \"../../_\"\nimport {\n SearchMessage,\n SearchMessageType,\n SearchSetupMessage,\n isSearchResultMessage\n} from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n index$: Observable /* Search index observable */\n base$: Observable /* Location base observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search index\n *\n * @param data - Search index\n *\n * @return Search index\n */\nfunction setupSearchIndex(\n { config, docs, index }: SearchIndex\n): SearchIndex {\n\n /* Override default language with value from translation */\n if (config.lang.length === 1 && config.lang[0] === \"en\")\n config.lang = [translate(\"search.config.lang\")]\n\n /* Override default separator with value from translation */\n if (config.separator === \"[\\\\s\\\\-]+\")\n config.separator = translate(\"search.config.separator\")\n\n /* Set pipeline from translation */\n const pipeline = translate(\"search.config.pipeline\")\n .split(/\\s*,\\s*/)\n .filter(Boolean) as SearchIndexPipeline\n\n /* Return search index after defaulting */\n return { config, docs, index, pipeline }\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search web worker\n *\n * This function will create a web worker to set up and query the search index\n * which is done using `lunr`. The index must be passed as an observable to\n * enable hacks like _localsearch_ via search index embedding as JSON.\n *\n * @param url - Worker URL\n * @param options - Options\n *\n * @return Worker handler\n */\nexport function setupSearchWorker(\n url: string, { index$, base$ }: SetupOptions\n): WorkerHandler {\n const worker = new Worker(url)\n\n /* Create communication channels and resolve relative links */\n const tx$ = new Subject()\n const rx$ = watchWorker(worker, { tx$ })\n .pipe(\n withLatestFrom(base$),\n map(([message, base]) => {\n if (isSearchResultMessage(message)) {\n for (const result of message.data)\n for (const document of result)\n document.location = `${base}/${document.location}`\n }\n return message\n }),\n share()\n )\n\n /* Set up search index */\n index$\n .pipe(\n map(data => ({\n type: SearchMessageType.SETUP,\n data: setupSearchIndex(data)\n })),\n observeOn(asyncScheduler)\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Return worker handler */\n return { tx$, rx$ }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, of, pipe } from \"rxjs\"\nimport { map, switchMap } from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { Header } from \"../header\"\nimport { Main } from \"../main\"\nimport {\n Sidebar,\n applySidebar,\n watchSidebar\n} from \"../shared\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Navigation for [screen -]\n */\ninterface NavigationBelowScreen {} // tslint:disable-line\n\n/**\n * Navigation for [screen +]\n */\ninterface NavigationAboveScreen {\n sidebar: Sidebar /* Sidebar */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Navigation\n */\nexport type Navigation =\n | NavigationBelowScreen\n | NavigationAboveScreen\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n viewport$: Observable /* Viewport observable */\n screen$: Observable /* Screen media observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount navigation from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountNavigation(\n { header$, main$, viewport$, screen$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => screen$\n .pipe(\n switchMap(screen => {\n\n /* [screen +]: Mount navigation in sidebar */\n if (screen) {\n return watchSidebar(el, { main$, viewport$ })\n .pipe(\n applySidebar(el, { header$ }),\n map(sidebar => ({ sidebar }))\n )\n\n /* [screen -]: Mount navigation in drawer */\n } else {\n return of({})\n }\n })\n )\n )\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./react\"\nexport * from \"./set\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n combineLatest,\n pipe\n} from \"rxjs\"\nimport {\n distinctUntilChanged,\n finalize,\n map,\n observeOn,\n tap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { Header } from \"../../../header\"\nimport { Main } from \"../../../main\"\nimport { Sidebar } from \"../_\"\nimport {\n resetSidebarHeight,\n resetSidebarOffset,\n setSidebarHeight,\n setSidebarOffset\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n main$: Observable
    /* Main area observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/**\n * Apply options\n */\ninterface ApplyOptions {\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch sidebar\n *\n * This function returns an observable that computes the visual parameters of\n * the sidebar which depends on the vertical viewport offset, as well as the\n * height of the main area. When the page is scrolled beyond the header, the\n * sidebar is locked and fills the remaining space.\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @return Sidebar observable\n */\nexport function watchSidebar(\n el: HTMLElement, { main$, viewport$ }: WatchOptions\n): Observable {\n const adjust = el.parentElement!.offsetTop\n - el.parentElement!.parentElement!.offsetTop\n\n /* Compute the sidebar's available height and if it should be locked */\n return combineLatest([main$, viewport$])\n .pipe(\n map(([{ offset, height }, { offset: { y } }]) => {\n height = height\n + Math.min(adjust, Math.max(0, y - offset))\n - adjust\n return {\n height,\n lock: y >= offset + adjust\n }\n }),\n distinctUntilChanged((a, b) => {\n return a.height === b.height\n && a.lock === b.lock\n })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply sidebar\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @return Operator function\n */\nexport function applySidebar(\n el: HTMLElement, { header$ }: ApplyOptions\n): MonoTypeOperatorFunction {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n withLatestFrom(header$),\n tap(([{ height, lock }, { height: offset }]) => {\n setSidebarHeight(el, height)\n\n /* Set offset in locked state depending on header height */\n if (lock)\n setSidebarOffset(el, offset)\n else\n resetSidebarOffset(el)\n }),\n\n /* Re-map to sidebar */\n map(([sidebar]) => sidebar),\n\n /* Reset on complete or error */\n finalize(() => {\n resetSidebarOffset(el)\n resetSidebarHeight(el)\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./anchor\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n OperatorFunction,\n combineLatest,\n of,\n pipe\n} from \"rxjs\"\nimport { map, switchMap } from \"rxjs/operators\"\n\nimport { Viewport, getElements } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../../main\"\nimport {\n Sidebar,\n applySidebar,\n watchSidebar\n} from \"../../shared\"\nimport {\n AnchorList,\n applyAnchorList,\n watchAnchorList\n} from \"../anchor\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Table of contents for [tablet -]\n */\ninterface TableOfContentsBelowTablet {} // tslint:disable-line\n\n/**\n * Table of contents for [tablet +]\n */\ninterface TableOfContentsAboveTablet {\n sidebar: Sidebar /* Sidebar */\n anchors: AnchorList /* Anchor list */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Table of contents\n */\nexport type TableOfContents =\n | TableOfContentsBelowTablet\n | TableOfContentsAboveTablet\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n viewport$: Observable /* Viewport observable */\n tablet$: Observable /* Tablet media observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount table of contents from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountTableOfContents(\n { header$, main$, viewport$, tablet$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => tablet$\n .pipe(\n switchMap(tablet => {\n\n /* [tablet +]: Mount table of contents in sidebar */\n if (tablet) {\n const els = getElements(\".md-nav__link\", el)\n\n /* Watch and apply sidebar */\n const sidebar$ = watchSidebar(el, { main$, viewport$ })\n .pipe(\n applySidebar(el, { header$ })\n )\n\n /* Watch and apply anchor list (scroll spy) */\n const anchors$ = watchAnchorList(els, { header$, viewport$ })\n .pipe(\n applyAnchorList(els)\n )\n\n /* Combine into single hot observable */\n return combineLatest([sidebar$, anchors$])\n .pipe(\n map(([sidebar, anchors]) => ({ sidebar, anchors }))\n )\n\n /* [tablet -]: Unmount table of contents */\n } else {\n return of({})\n }\n })\n )\n )\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n combineLatest,\n pipe\n} from \"rxjs\"\nimport {\n bufferCount,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n finalize,\n map,\n observeOn,\n scan,\n startWith,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { Viewport, getElement, watchElementSize } from \"browser\"\n\nimport { Header } from \"../../../header\"\nimport { AnchorList } from \"../_\"\nimport {\n resetAnchorActive,\n resetAnchorBlur,\n setAnchorActive,\n setAnchorBlur\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch anchor list\n *\n * This is effectively a scroll-spy implementation which will account for the\n * fixed header and automatically re-calculate anchor offsets when the viewport\n * is resized. The returned observable will only emit if the anchor list needs\n * to be repainted.\n *\n * This implementation tracks an anchor element's entire path starting from its\n * level up to the top-most anchor element, e.g. `[h3, h2, h1]`. Although the\n * Material theme currently doesn't make use of this information, it enables\n * the styling of the entire hierarchy through customization.\n *\n * Note that the current anchor is the last item of the `prev` anchor list.\n *\n * @param els - Anchor elements\n * @param options - Options\n *\n * @return Anchor list observable\n */\nexport function watchAnchorList(\n els: HTMLAnchorElement[], { header$, viewport$ }: WatchOptions\n): Observable {\n const table = new Map()\n for (const el of els) {\n const id = decodeURIComponent(el.hash.substring(1))\n const target = getElement(`[id=\"${id}\"]`)\n if (typeof target !== \"undefined\")\n table.set(el, target)\n }\n\n /* Compute necessary adjustment for header */\n const adjust$ = header$\n .pipe(\n map(header => 18 + header.height)\n )\n\n /* Compute partition of previous and next anchors */\n const partition$ = watchElementSize(document.body)\n .pipe(\n distinctUntilKeyChanged(\"height\"),\n\n /* Build index to map anchor paths to vertical offsets */\n map(() => {\n let path: HTMLAnchorElement[] = []\n return [...table].reduce((index, [anchor, target]) => {\n while (path.length) {\n const last = table.get(path[path.length - 1])!\n if (last.tagName >= target.tagName) {\n path.pop()\n } else {\n break\n }\n }\n\n /* If the current anchor is hidden, continue with its parent */\n let offset = target.offsetTop\n while (!offset && target.parentElement) {\n target = target.parentElement\n offset = target.offsetTop\n }\n\n /* Map reversed anchor path to vertical offset */\n return index.set(\n [...path = [...path, anchor]].reverse(),\n offset\n )\n }, new Map())\n }),\n\n /* Re-compute partition when viewport offset changes */\n switchMap(index => combineLatest([adjust$, viewport$])\n .pipe(\n scan(([prev, next], [adjust, { offset: { y } }]) => {\n\n /* Look forward */\n while (next.length) {\n const [, offset] = next[0]\n if (offset - adjust < y) {\n prev = [...prev, next.shift()!]\n } else {\n break\n }\n }\n\n /* Look backward */\n while (prev.length) {\n const [, offset] = prev[prev.length - 1]\n if (offset - adjust >= y) {\n next = [prev.pop()!, ...next]\n } else {\n break\n }\n }\n\n /* Return partition */\n return [prev, next]\n }, [[], [...index]]),\n distinctUntilChanged((a, b) => {\n return a[0] === b[0]\n && a[1] === b[1]\n })\n )\n )\n )\n\n /* Compute and return anchor list migrations */\n return partition$\n .pipe(\n map(([prev, next]) => ({\n prev: prev.map(([path]) => path),\n next: next.map(([path]) => path)\n })),\n\n /* Extract anchor list migrations */\n startWith({ prev: [], next: [] }),\n bufferCount(2, 1),\n map(([a, b]) => {\n\n /* Moving down */\n if (a.prev.length < b.prev.length) {\n return {\n prev: b.prev.slice(Math.max(0, a.prev.length - 1), b.prev.length),\n next: []\n }\n\n /* Moving up */\n } else {\n return {\n prev: b.prev.slice(-1),\n next: b.next.slice(0, b.next.length - a.next.length)\n }\n }\n })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply anchor list\n *\n * @param els - Anchor elements\n *\n * @return Operator function\n */\nexport function applyAnchorList(\n els: HTMLAnchorElement[]\n): MonoTypeOperatorFunction {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n tap(({ prev, next }) => {\n\n /* Look forward */\n for (const [el] of next) {\n resetAnchorActive(el)\n resetAnchorBlur(el)\n }\n\n /* Look backward */\n prev.forEach(([el], index) => {\n setAnchorActive(el, index === prev.length - 1)\n setAnchorBlur(el, true)\n })\n }),\n\n /* Reset on complete or error */\n finalize(() => {\n for (const el of els) {\n resetAnchorActive(el)\n resetAnchorBlur(el)\n }\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, combineLatest, pipe } from \"rxjs\"\nimport {\n filter,\n map,\n mapTo,\n sample,\n startWith,\n switchMap,\n take\n} from \"rxjs/operators\"\n\nimport { WorkerHandler } from \"browser\"\nimport {\n SearchMessage,\n SearchResult,\n isSearchQueryMessage,\n isSearchReadyMessage\n} from \"integrations/search\"\n\nimport { SearchQuery } from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search status\n */\nexport type SearchStatus =\n | \"waiting\" /* Search waiting for initialization */\n | \"ready\" /* Search ready */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search\n */\nexport interface Search {\n status: SearchStatus /* Search status */\n query: SearchQuery /* Search query */\n result: SearchResult[] /* Search result list */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n query$: Observable /* Search query observable */\n reset$: Observable /* Search reset observable */\n result$: Observable /* Search result observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearch(\n { rx$, tx$ }: WorkerHandler,\n { query$, reset$, result$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(() => {\n\n /* Compute search status */\n const status$ = rx$\n .pipe(\n filter(isSearchReadyMessage),\n mapTo(\"ready\"),\n startWith(\"waiting\")\n ) as Observable\n\n /* Re-emit the latest query when search is ready */\n tx$\n .pipe(\n filter(isSearchQueryMessage),\n sample(status$),\n take(1)\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Combine into single observable */\n return combineLatest([status$, query$, result$, reset$])\n .pipe(\n map(([status, query, result]) => ({\n status,\n query,\n result\n }))\n )\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { OperatorFunction, pipe } from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n map,\n switchMap\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, setToggle } from \"browser\"\nimport {\n SearchMessage,\n SearchMessageType,\n SearchQueryMessage,\n SearchTransformFn\n} from \"integrations\"\n\nimport { watchSearchQuery } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query\n */\nexport interface SearchQuery {\n value: string /* Query value */\n focus: boolean /* Query focus */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n transform?: SearchTransformFn /* Transformation function */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search query from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearchQuery(\n { tx$ }: WorkerHandler, options: MountOptions = {}\n): OperatorFunction {\n return pipe(\n switchMap(el => {\n const query$ = watchSearchQuery(el, options)\n\n /* Subscribe worker to search query */\n query$\n .pipe(\n distinctUntilKeyChanged(\"value\"),\n map(({ value }): SearchQueryMessage => ({\n type: SearchMessageType.QUERY,\n data: value\n }))\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Toggle search on focus */\n query$\n .pipe(\n distinctUntilKeyChanged(\"focus\")\n )\n .subscribe(({ focus }) => {\n if (focus)\n setToggle(\"search\", focus)\n })\n\n /* Return search query */\n return query$\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest, fromEvent, merge } from \"rxjs\"\nimport {\n delay,\n distinctUntilChanged,\n map,\n startWith\n} from \"rxjs/operators\"\n\nimport { watchElementFocus } from \"browser\"\nimport { SearchTransformFn, defaultTransform } from \"integrations\"\n\nimport { SearchQuery } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n transform?: SearchTransformFn /* Transformation function */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search query\n *\n * Note that the focus event which triggers re-reading the current query value\n * is delayed by `1ms` so the input's empty state is allowed to propagate.\n *\n * @param el - Search query element\n * @param options - Options\n *\n * @return Search query observable\n */\nexport function watchSearchQuery(\n el: HTMLInputElement, { transform }: WatchOptions = {}\n): Observable {\n const fn = transform || defaultTransform\n\n /* Intercept keyboard events */\n const value$ = merge(\n fromEvent(el, \"keyup\"),\n fromEvent(el, \"focus\").pipe(delay(1))\n )\n .pipe(\n map(() => fn(el.value)),\n startWith(fn(el.value)),\n distinctUntilChanged()\n )\n\n /* Intercept focus events */\n const focus$ = watchElementFocus(el)\n\n /* Combine into single observable */\n return combineLatest([value$, focus$])\n .pipe(\n map(([value, focus]) => ({ value, focus }))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { OperatorFunction, pipe } from \"rxjs\"\nimport {\n mapTo,\n startWith,\n switchMap,\n switchMapTo,\n tap\n} from \"rxjs/operators\"\n\nimport { setElementFocus } from \"browser\"\n\nimport { useComponent } from \"../../../_\"\nimport { watchSearchReset } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search reset from source observable\n *\n * @return Operator function\n */\nexport function mountSearchReset(): OperatorFunction {\n return pipe(\n switchMap(el => watchSearchReset(el)\n .pipe(\n switchMapTo(useComponent(\"search-query\")),\n tap(setElementFocus),\n mapTo(undefined)\n )\n ),\n startWith(undefined)\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search reset\n *\n * @param el - Search reset element\n *\n * @return Search reset observable\n */\nexport function watchSearchReset(\n el: HTMLElement\n): Observable {\n return fromEvent(el, \"click\")\n .pipe(\n mapTo(undefined)\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set number of search results\n *\n * @param el - Search result metadata element\n * @param value - Number of results\n */\nexport function setSearchResultMeta(\n el: HTMLElement, value: number\n): void {\n switch (value) {\n\n /* No results */\n case 0:\n el.textContent = translate(\"search.result.none\")\n break\n\n /* One result */\n case 1:\n el.textContent = translate(\"search.result.one\")\n break\n\n /* Multiple result */\n default:\n el.textContent = translate(\"search.result.other\", value)\n }\n}\n\n/**\n * Reset number of search results\n *\n * @param el - Search result metadata element\n */\nexport function resetSearchResultMeta(\n el: HTMLElement\n): void {\n el.textContent = translate(\"search.result.placeholder\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Add an element to the search result list\n *\n * @param el - Search result list element\n * @param child - Search result element\n */\nexport function addToSearchResultList(\n el: HTMLElement, child: Element\n): void {\n el.appendChild(child)\n}\n\n/**\n * Reset search result list\n *\n * @param el - Search result list element\n */\nexport function resetSearchResultList(\n el: HTMLElement\n): void {\n el.innerHTML = \"\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n pipe\n} from \"rxjs\"\nimport {\n finalize,\n map,\n mapTo,\n observeOn,\n scan,\n switchMap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"browser\"\nimport { SearchResult } from \"integrations/search\"\nimport { renderSearchResult } from \"templates\"\n\nimport { SearchQuery } from \"../../query\"\nimport {\n addToSearchResultList,\n resetSearchResultList,\n resetSearchResultMeta,\n setSearchResultMeta\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply options\n */\ninterface ApplyOptions {\n query$: Observable /* Search query observable */\n ready$: Observable /* Search ready observable */\n fetch$: Observable /* Result fetch observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply search results\n *\n * This function will perform a lazy rendering of the search results, depending\n * on the vertical offset of the search result container. When the scroll offset\n * reaches the bottom of the element, more results are fetched and rendered.\n *\n * @param el - Search result element\n * @param options - Options\n *\n * @return Operator function\n */\nexport function applySearchResult(\n el: HTMLElement, { query$, ready$, fetch$ }: ApplyOptions\n): MonoTypeOperatorFunction {\n const list = getElementOrThrow(\".md-search-result__list\", el)\n const meta = getElementOrThrow(\".md-search-result__meta\", el)\n return pipe(\n\n /* Apply search result metadata */\n withLatestFrom(query$, ready$),\n map(([result, query]) => {\n if (query.value) {\n setSearchResultMeta(meta, result.length)\n } else {\n resetSearchResultMeta(meta)\n }\n return result\n }),\n\n /* Apply search result list */\n switchMap(result => {\n const thresholds = [...result.map(([best]) => best.score), 0]\n return fetch$\n .pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n scan(index => {\n const container = el.parentElement!\n while (index < result.length) {\n addToSearchResultList(list, renderSearchResult(\n result[index++], thresholds[index]\n ))\n if (container.scrollHeight - container.offsetHeight > 16)\n break\n }\n return index\n }, 0),\n\n /* Re-map to search result */\n mapTo(result),\n\n /* Reset on complete or error */\n finalize(() => {\n resetSearchResultList(list)\n })\n )\n }\n )\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, pipe } from \"rxjs\"\nimport {\n distinctUntilChanged,\n filter,\n map,\n mapTo,\n startWith,\n switchMap\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, watchElementOffset } from \"browser\"\nimport {\n SearchMessage,\n SearchResult,\n isSearchReadyMessage,\n isSearchResultMessage\n} from \"integrations\"\n\nimport { SearchQuery } from \"../../query\"\nimport { applySearchResult } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n query$: Observable /* Search query observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search result from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearchResult(\n { rx$ }: WorkerHandler, { query$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => {\n const container = el.parentElement!\n\n /* Compute if search is ready */\n const ready$ = rx$\n .pipe(\n filter(isSearchReadyMessage),\n mapTo(true)\n )\n\n /* Compute whether there are more search results to fetch */\n const fetch$ = watchElementOffset(container)\n .pipe(\n map(({ y }) => {\n return y >= container.scrollHeight - container.offsetHeight - 16\n }),\n distinctUntilChanged(),\n filter(Boolean)\n )\n\n /* Apply search results */\n return rx$\n .pipe(\n filter(isSearchResultMessage),\n map(({ data }) => data),\n applySearchResult(el, { query$, ready$, fetch$ }),\n startWith([])\n )\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, combineLatest, pipe } from \"rxjs\"\nimport {\n distinctUntilChanged,\n filter,\n map,\n startWith,\n switchMap,\n zipWith\n} from \"rxjs/operators\"\n\nimport {\n Viewport,\n getElement,\n watchViewportAt\n} from \"browser\"\n\nimport { useComponent } from \"../../_\"\nimport {\n applyHeaderType,\n watchHeader\n} from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Header type\n */\nexport type HeaderType =\n | \"site\" /* Header shows site title */\n | \"page\" /* Header shows page title */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Header\n */\nexport interface Header {\n type: HeaderType /* Header type */\n sticky: boolean /* Header stickyness */\n height: number /* Header visible height */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n document$: Observable /* Document observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount header from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountHeader(\n { document$, viewport$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => {\n const header$ = watchHeader(el, { document$ })\n\n /* Compute whether the header should switch to page header */\n const type$ = useComponent(\"main\")\n .pipe(\n map(main => getElement(\"h1, h2, h3, h4, h5, h6\", main)!),\n filter(hx => typeof hx !== \"undefined\"),\n zipWith(useComponent(\"header-title\")),\n switchMap(([hx, title]) => watchViewportAt(hx, { header$, viewport$ })\n .pipe(\n map(({ offset: { y } }) => {\n return y >= hx.offsetHeight ? \"page\" : \"site\"\n }),\n distinctUntilChanged(),\n applyHeaderType(title)\n )\n ),\n startWith(\"site\")\n )\n\n /* Combine into single observable */\n return combineLatest([header$, type$])\n .pipe(\n map(([header, type]): Header => ({ type, ...header }))\n )\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n of,\n pipe\n} from \"rxjs\"\nimport {\n distinctUntilChanged,\n finalize,\n map,\n observeOn,\n shareReplay,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { watchElementSize } from \"browser\"\n\nimport { Header, HeaderType } from \"../_\"\nimport {\n resetHeaderTitleActive,\n setHeaderTitleActive\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch header\n *\n * @param el - Header element\n *\n * @return Header observable\n */\nexport function watchHeader(\n el: HTMLElement, { document$ }: WatchOptions\n): Observable> {\n return document$\n .pipe(\n map(() => {\n const styles = getComputedStyle(el)\n return [\n \"sticky\", /* Modern browsers */\n \"-webkit-sticky\" /* Safari */\n ].includes(styles.position)\n }),\n distinctUntilChanged(),\n switchMap(sticky => {\n if (sticky) {\n return watchElementSize(el)\n .pipe(\n map(({ height }) => ({\n sticky: true,\n height\n }))\n )\n } else {\n return of({\n sticky: false,\n height: 0\n })\n }\n }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply header title type\n *\n * @param el - Header title element\n *\n * @return Operator function\n */\nexport function applyHeaderType(\n el: HTMLElement\n): MonoTypeOperatorFunction {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n tap(type => {\n setHeaderTitleActive(el, type === \"page\")\n }),\n\n /* Reset on complete or error */\n finalize(() => {\n resetHeaderTitleActive(el)\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header title active\n *\n * @param el - Header title element\n * @param value - Whether the title is shown\n */\nexport function setHeaderTitleActive(\n el: HTMLElement, value: boolean\n): void {\n el.setAttribute(\"data-md-state\", value ? \"active\" : \"\")\n}\n\n/**\n * Reset header title active\n *\n * @param el - Header title element\n */\nexport function resetHeaderTitleActive(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n OperatorFunction,\n Subject,\n noop,\n pipe\n} from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n finalize,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { useComponent } from \"../../_\"\nimport { Header } from \"../../header\"\nimport {\n applyHeaderShadow,\n watchMain\n} from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Main area\n */\nexport interface Main {\n offset: number /* Main area top offset */\n height: number /* Main area visible height */\n active: boolean /* Scrolled past top offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount main area from source observable\n *\n * The header must be connected to the main area observable outside of the\n * operator function, as the header will persist in-between document switches\n * while the main area is replaced. However, the header observable must be\n * passed to this function, so we connect both via a long-living subject.\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountMain(\n { header$, viewport$ }: MountOptions\n): OperatorFunction {\n const main$ = new Subject
    ()\n\n /* Connect to main area observable via long-living subject */\n useComponent(\"header\")\n .pipe(\n switchMap(header => main$\n .pipe(\n distinctUntilKeyChanged(\"active\"),\n applyHeaderShadow(header)\n )\n )\n )\n .subscribe(noop)\n\n /* Return operator */\n return pipe(\n switchMap(el => watchMain(el, { header$, viewport$ })),\n tap(main => main$.next(main)),\n finalize(() => main$.complete())\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n combineLatest,\n pipe\n} from \"rxjs\"\nimport {\n distinctUntilChanged,\n distinctUntilKeyChanged,\n finalize,\n map,\n observeOn,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchElementSize } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../_\"\nimport {\n resetHeaderShadow,\n setHeaderShadow\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch main area\n *\n * This function returns an observable that computes the visual parameters of\n * the main area which depends on the viewport vertical offset and height, as\n * well as the height of the header element, if the header is fixed.\n *\n * @param el - Main area element\n * @param options - Options\n *\n * @return Main area observable\n */\nexport function watchMain(\n el: HTMLElement, { header$, viewport$ }: WatchOptions\n): Observable
    {\n\n /* Compute necessary adjustment for header */\n const adjust$ = header$\n .pipe(\n map(({ height }) => height),\n distinctUntilChanged()\n )\n\n /* Compute the main area's top and bottom borders */\n const border$ = adjust$\n .pipe(\n switchMap(() => watchElementSize(el)\n .pipe(\n map(({ height }) => ({\n top: el.offsetTop,\n bottom: el.offsetTop + height\n })),\n distinctUntilKeyChanged(\"bottom\")\n )\n )\n )\n\n /* Compute the main area's offset, visible height and if we scrolled past */\n return combineLatest([adjust$, border$, viewport$])\n .pipe(\n map(([header, { top, bottom }, { offset: { y }, size: { height } }]) => {\n height = Math.max(0, height\n - Math.max(0, top - y, header)\n - Math.max(0, height + y - bottom)\n )\n return {\n offset: top - header,\n height,\n active: top - header <= y\n }\n }),\n distinctUntilChanged
    ((a, b) => {\n return a.offset === b.offset\n && a.height === b.height\n && a.active === b.active\n })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply header shadow\n *\n * @param el - Header element\n *\n * @return Operator function\n */\nexport function applyHeaderShadow(\n el: HTMLElement\n): MonoTypeOperatorFunction
    {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n tap(({ active }) => {\n setHeaderShadow(el, active)\n }),\n\n /* Reset on complete or error */\n finalize(() => {\n resetHeaderShadow(el)\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header shadow\n *\n * @param el - Header element\n * @param value - Whether the shadow is shown\n */\nexport function setHeaderShadow(\n el: HTMLElement, value: boolean\n): void {\n el.setAttribute(\"data-md-state\", value ? \"shadow\" : \"\")\n}\n\n/**\n * Reset header shadow\n *\n * @param el - Header element\n */\nexport function resetHeaderShadow(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, of, pipe } from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n map,\n switchMap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchViewportAt } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { applyTabs } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Tabs\n */\nexport interface Tabs {\n hidden: boolean /* Whether the tabs are hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n screen$: Observable /* Media screen observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount tabs from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountTabs(\n { header$, viewport$, screen$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => screen$\n .pipe(\n switchMap(screen => {\n\n /* [screen +]: Mount tabs above screen breakpoint */\n if (screen) {\n return watchViewportAt(el, { header$, viewport$ })\n .pipe(\n map(({ offset: { y } }) => ({ hidden: y >= 10 })),\n distinctUntilKeyChanged(\"hidden\"),\n applyTabs(el)\n )\n\n /* [screen -]: Unmount tabs below screen breakpoint */\n } else {\n return of({ hidden: true })\n }\n })\n )\n )\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n animationFrameScheduler,\n pipe\n} from \"rxjs\"\nimport { finalize, observeOn, tap } from \"rxjs/operators\"\n\nimport { Tabs } from \"../_\"\nimport {\n resetTabsHidden,\n setTabsHidden\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply tabs\n *\n * @param el - Tabs element\n *\n * @return Operator function\n */\nexport function applyTabs(\n el: HTMLElement\n): MonoTypeOperatorFunction {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n tap(({ hidden }) => {\n setTabsHidden(el, hidden)\n }),\n\n /* Reset on complete or error */\n finalize(() => {\n resetTabsHidden(el)\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set tabs hidden\n *\n * @param el - Tabs element\n * @param value - Whether the element is hidden\n */\nexport function setTabsHidden(\n el: HTMLElement, value: boolean\n): void {\n el.setAttribute(\"data-md-state\", value ? \"hidden\" : \"\")\n}\n\n/**\n * Reset tabs hidden\n *\n * @param el - Tabs element\n */\nexport function resetTabsHidden(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, fromEvent, iif, merge } from \"rxjs\"\nimport { map, mapTo, shareReplay, switchMap } from \"rxjs/operators\"\n\nimport { getElements } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether the given device is an Apple device\n *\n * @return Test result\n */\nfunction isAppleDevice(): boolean {\n return /(iPad|iPhone|iPod)/.test(navigator.userAgent)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all elements with `data-md-scrollfix` attributes\n *\n * This is a year-old patch which ensures that overflow scrolling works at the\n * top and bottom of containers on iOS by ensuring a `1px` scroll offset upon\n * the start of a touch event.\n *\n * @see https://bit.ly/2SCtAOO - Original source\n *\n * @param options - Options\n */\nexport function patchScrollfix(\n { document$ }: PatchOptions\n): void {\n const els$ = document$\n .pipe(\n map(() => getElements(\"[data-md-scrollfix]\")),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* Remove marker attribute, so we'll only add the fix once */\n els$.subscribe(els => {\n for (const el of els)\n el.removeAttribute(\"data-md-scrollfix\")\n })\n\n /* Patch overflow scrolling on touch start */\n iif(isAppleDevice, els$, NEVER)\n .pipe(\n switchMap(els => merge(...els.map(el => (\n fromEvent(el, \"touchstart\")\n .pipe(\n mapTo(el)\n )\n ))))\n )\n .subscribe(el => {\n const top = el.scrollTop\n\n /* We're at the top of the container */\n if (top === 0) {\n el.scrollTop = 1\n\n /* We're at the bottom of the container */\n } else if (top + el.offsetHeight === el.scrollHeight) {\n el.scrollTop = top - 1\n }\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable } from \"rxjs\"\nimport { catchError, map, switchMap } from \"rxjs/operators\"\n\nimport { getElementOrThrow, getElements } from \"browser\"\nimport { renderSource } from \"templates\"\nimport { cache, hash } from \"utilities\"\n\nimport { fetchSourceFactsFromGitHub } from \"./github\"\nimport { fetchSourceFactsFromGitLab } from \"./gitlab\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Source facts\n */\nexport type SourceFacts = string[]\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch source facts\n *\n * @param url - Source repository URL\n *\n * @return Source facts observable\n */\nfunction fetchSourceFacts(\n url: string\n): Observable {\n const [type] = url.match(/(git(?:hub|lab))/i) || []\n switch (type.toLowerCase()) {\n\n /* GitHub repository */\n case \"github\":\n const [, user, repo] = url.match(/^.+github\\.com\\/([^\\/]+)\\/?([^\\/]+)?/i)\n return fetchSourceFactsFromGitHub(user, repo)\n\n /* GitLab repository */\n case \"gitlab\":\n const [, base, slug] = url.match(/^.+?([^\\/]*gitlab[^\\/]+)\\/(.+?)\\/?$/i)\n return fetchSourceFactsFromGitLab(base, slug)\n\n /* Everything else */\n default:\n return NEVER\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch elements containing repository information\n *\n * This function will retrieve the URL from the repository link and try to\n * query data from integrated source code platforms like GitHub or GitLab.\n *\n * @param options - Options\n */\nexport function patchSource(\n { document$ }: PatchOptions\n): void {\n document$\n .pipe(\n map(() => getElementOrThrow(\".md-source[href]\")),\n switchMap(({ href }) => (\n cache(`${hash(href)}`, () => fetchSourceFacts(href))\n )),\n catchError(() => NEVER)\n )\n .subscribe(facts => {\n for (const el of getElements(\".md-source__repository\")) {\n if (!el.hasAttribute(\"data-md-state\")) {\n el.setAttribute(\"data-md-state\", \"done\")\n el.appendChild(renderSource(facts))\n }\n }\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Repo, User } from \"github-types\"\nimport { Observable, from } from \"rxjs\"\nimport { map } from \"rxjs/operators\"\n\nimport { round } from \"utilities\"\n\nimport { SourceFacts } from \"..\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitHub source facts\n *\n * @param user - GitHub user\n * @param repo - GitHub repository\n *\n * @return Source facts observable\n */\nexport function fetchSourceFactsFromGitHub(\n user: string, repo?: string\n): Observable {\n const url = typeof repo !== \"undefined\"\n ? `https://api.github.com/repos/${user}/${repo}`\n : `https://api.github.com/users/${user}`\n return from(fetch(url).then(res => res.json()))\n .pipe(\n map(data => {\n\n /* GitHub repository */\n if (typeof repo !== \"undefined\") {\n const { stargazers_count, forks_count }: Repo = data\n return [\n `${round(stargazers_count || 0)} Stars`,\n `${round(forks_count || 0)} Forks`\n ]\n\n /* GitHub user/organization */\n } else {\n const { public_repos }: User = data\n return [\n `${round(public_repos || 0)} Repositories`\n ]\n }\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ProjectSchema } from \"gitlab\"\nimport { Observable, from } from \"rxjs\"\nimport { map } from \"rxjs/operators\"\n\nimport { round } from \"utilities\"\n\nimport { SourceFacts } from \"..\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitLab source facts\n *\n * @param base - GitLab base\n * @param project - GitLab project\n *\n * @return Source facts observable\n */\nexport function fetchSourceFactsFromGitLab(\n base: string, project: string\n): Observable {\n const url = `https://${base}/api/v4/projects/${encodeURIComponent(project)}`\n return from(fetch(url).then(res => res.json()))\n .pipe(\n map(({ star_count, forks_count }: ProjectSchema) => ([\n `${round(star_count)} Stars`,\n `${round(forks_count)} Forks`\n ]))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// DISCLAIMER: this file is still WIP. There're some refactoring opportunities\n// which must be tackled after we gathered some feedback on v5.\n// tslint:disable\n\nimport \"focus-visible\"\n\nimport {\n merge,\n combineLatest,\n animationFrameScheduler,\n fromEvent,\n from,\n defer,\n of,\n NEVER\n} from \"rxjs\"\nimport {\n delay,\n switchMap,\n tap,\n filter,\n withLatestFrom,\n observeOn,\n take,\n shareReplay,\n catchError,\n map\n} from \"rxjs/operators\"\n\nimport {\n watchToggle,\n setToggle,\n getElements,\n watchMedia,\n watchDocument,\n watchLocation,\n watchLocationHash,\n watchViewport,\n isLocalLocation,\n setLocationHash,\n watchLocationBase\n} from \"browser\"\nimport {\n mountHeader,\n mountMain,\n mountNavigation,\n mountSearch,\n mountTableOfContents,\n mountTabs,\n useComponent,\n setupComponents,\n mountSearchQuery,\n mountSearchReset,\n mountSearchResult\n} from \"components\"\nimport {\n setupClipboard,\n setupDialog,\n setupKeyboard,\n setupInstantLoading,\n setupSearchWorker,\n SearchIndex,\n SearchIndexPipeline\n} from \"integrations\"\nimport {\n patchCodeBlocks,\n patchTables,\n patchDetails,\n patchScrollfix,\n patchSource,\n patchScripts\n} from \"patches\"\nimport { isConfig } from \"utilities\"\n\n/* ------------------------------------------------------------------------- */\n\n/* Denote that JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Test for iOS */\nif (navigator.userAgent.match(/(iPad|iPhone|iPod)/g))\n document.documentElement.classList.add(\"ios\")\n\n/**\n * Set scroll lock\n *\n * @param el - Scrollable element\n * @param value - Vertical offset\n */\nexport function setScrollLock(\n el: HTMLElement, value: number\n): void {\n el.setAttribute(\"data-md-state\", \"lock\")\n el.style.top = `-${value}px`\n}\n\n/**\n * Reset scroll lock\n *\n * @param el - Scrollable element\n */\nexport function resetScrollLock(\n el: HTMLElement\n): void {\n const value = -1 * parseInt(el.style.top, 10)\n el.removeAttribute(\"data-md-state\")\n el.style.top = \"\"\n if (value)\n window.scrollTo(0, value)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Initialize Material for MkDocs\n *\n * @param config - Configuration\n */\nexport function initialize(config: unknown) {\n if (!isConfig(config))\n throw new SyntaxError(`Invalid configuration: ${JSON.stringify(config)}`)\n\n /* Set up subjects */\n const document$ = watchDocument()\n const location$ = watchLocation()\n\n /* Set up user interface observables */\n const base$ = watchLocationBase(config.base, { location$ })\n const hash$ = watchLocationHash()\n const viewport$ = watchViewport()\n const tablet$ = watchMedia(\"(min-width: 960px)\")\n const screen$ = watchMedia(\"(min-width: 1220px)\")\n\n /* ----------------------------------------------------------------------- */\n\n /* Set up component bindings */\n setupComponents([\n \"announce\", /* Announcement bar */\n \"container\", /* Container */\n \"header\", /* Header */\n \"header-title\", /* Header title */\n \"main\", /* Main area */\n \"navigation\", /* Navigation */\n \"search\", /* Search */\n \"search-query\", /* Search input */\n \"search-reset\", /* Search reset */\n \"search-result\", /* Search results */\n \"skip\", /* Skip link */\n \"tabs\", /* Tabs */\n \"toc\" /* Table of contents */\n ], { document$ })\n\n const keyboard$ = setupKeyboard()\n\n // Hack: only make code blocks focusable on non-touch devices\n if (matchMedia(\"(hover)\").matches)\n patchCodeBlocks({ document$, viewport$ })\n patchDetails({ document$, hash$ })\n patchScripts({ document$ })\n patchSource({ document$ })\n patchTables({ document$ })\n\n /* Force 1px scroll offset to trigger overflow scrolling */\n patchScrollfix({ document$ })\n\n /* Set up clipboard and dialog */\n const dialog$ = setupDialog()\n const clipboard$ = setupClipboard({ document$, dialog$ })\n\n /* ----------------------------------------------------------------------- */\n\n /* Create header observable */\n const header$ = useComponent(\"header\")\n .pipe(\n mountHeader({ document$, viewport$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n const main$ = useComponent(\"main\")\n .pipe(\n mountMain({ header$, viewport$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* ----------------------------------------------------------------------- */\n\n const navigation$ = useComponent(\"navigation\")\n .pipe(\n mountNavigation({ header$, main$, viewport$, screen$ }),\n shareReplay({ bufferSize: 1, refCount: true }) // shareReplay because there might be late subscribers\n )\n\n const toc$ = useComponent(\"toc\")\n .pipe(\n mountTableOfContents({ header$, main$, viewport$, tablet$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n const tabs$ = useComponent(\"tabs\")\n .pipe(\n mountTabs({ header$, viewport$, screen$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* ----------------------------------------------------------------------- */\n\n /* Search worker - only if search is present */\n const worker$ = useComponent(\"search\")\n .pipe(\n switchMap(() => defer(() => {\n const index = config.search && config.search.index\n ? config.search.index\n : undefined\n\n /* Fetch index if it wasn't passed explicitly */\n const index$ = (\n typeof index !== \"undefined\"\n ? from(index)\n : base$\n .pipe(\n switchMap(base => fetch(`${base}/search/search_index.json`, {\n credentials: \"same-origin\"\n }).then(res => res.json())) // SearchIndex\n )\n )\n\n return of(setupSearchWorker(config.search.worker, {\n base$, index$\n }))\n }))\n )\n\n /* ----------------------------------------------------------------------- */\n\n /* Mount search query */\n const search$ = worker$\n .pipe(\n switchMap(worker => {\n\n const query$ = useComponent(\"search-query\")\n .pipe(\n mountSearchQuery(worker, { transform: config.search.transform }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* Mount search reset */\n const reset$ = useComponent(\"search-reset\")\n .pipe(\n mountSearchReset(),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* Mount search result */\n const result$ = useComponent(\"search-result\")\n .pipe(\n mountSearchResult(worker, { query$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n return useComponent(\"search\")\n .pipe(\n mountSearch(worker, { query$, reset$, result$ }),\n )\n }),\n catchError(() => {\n useComponent(\"search\")\n .subscribe(el => el.hidden = true) // TODO: Hack\n return NEVER\n }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* ----------------------------------------------------------------------- */\n\n // // put into search...\n hash$\n .pipe(\n tap(() => setToggle(\"search\", false)),\n delay(125), // ensure that it runs after the body scroll reset...\n )\n .subscribe(hash => setLocationHash(`#${hash}`))\n\n // TODO: scroll restoration must be centralized\n combineLatest([\n watchToggle(\"search\"),\n tablet$,\n ])\n .pipe(\n withLatestFrom(viewport$),\n switchMap(([[toggle, tablet], { offset: { y }}]) => {\n const active = toggle && !tablet\n return document$\n .pipe(\n delay(active ? 400 : 100),\n observeOn(animationFrameScheduler),\n tap(({ body }) => active\n ? setScrollLock(body, y)\n : resetScrollLock(body)\n )\n )\n })\n )\n .subscribe()\n\n /* ----------------------------------------------------------------------- */\n\n /* Always close drawer on click */\n fromEvent(document.body, \"click\")\n .pipe(\n filter(ev => !(ev.metaKey || ev.ctrlKey)),\n filter(ev => {\n if (ev.target instanceof HTMLElement) {\n const el = ev.target.closest(\"a\") // TODO: abstract as link click?\n if (el && isLocalLocation(el)) {\n return true\n }\n }\n return false\n })\n )\n .subscribe(() => {\n setToggle(\"drawer\", false)\n })\n\n /* Enable instant loading, if not on file:// protocol */\n if (\n config.features.includes(\"navigation.instant\") &&\n location.protocol !== \"file:\"\n ) {\n const dom = new DOMParser()\n\n /* Fetch sitemap and extract URL whitelist */\n base$\n .pipe(\n switchMap(base => from(fetch(`${base}/sitemap.xml`)\n .then(res => res.text())\n .then(text => dom.parseFromString(text, \"text/xml\"))\n )),\n withLatestFrom(base$),\n map(([document, base]) => {\n const urls = getElements(\"loc\", document)\n .map(node => node.textContent!)\n\n // Hack: This is a temporary fix to normalize instant loading lookup\n // on localhost and Netlify previews. If this approach proves to be\n // suitable, we'll refactor URL whitelisting anyway. We take the two\n // shortest URLs and determine the common prefix to isolate the\n // domain. If there're no two domains, we just leave it as-is, as\n // there isn't anything to be loaded anway.\n if (urls.length > 1) {\n const [a, b] = urls.sort((a, b) => a.length - b.length)\n\n /* Determine common prefix */\n let index = 0\n if (a === b)\n index = a.length\n else\n while (a.charAt(index) === b.charAt(index))\n index++\n\n /* Replace common prefix (i.e. base) with effective base */\n for (let i = 0; i < urls.length; i++)\n urls[i] = urls[i].replace(a.slice(0, index), `${base}/`)\n }\n return urls\n })\n )\n .subscribe(urls => {\n setupInstantLoading(urls, { document$, location$, viewport$ })\n })\n }\n\n /* ----------------------------------------------------------------------- */\n\n /* Unhide permalinks on first tab */\n keyboard$\n .pipe(\n filter(key => key.mode === \"global\" && key.type === \"Tab\"),\n take(1)\n )\n .subscribe(() => {\n for (const link of getElements(\".headerlink\"))\n link.style.visibility = \"visible\"\n })\n\n /* ----------------------------------------------------------------------- */\n\n const state = {\n\n /* Browser observables */\n document$,\n location$,\n viewport$,\n\n /* Component observables */\n header$,\n main$,\n navigation$,\n search$,\n tabs$,\n toc$,\n\n /* Integration observables */\n clipboard$,\n keyboard$,\n dialog$\n }\n\n /* Subscribe to all observables */\n merge(...Object.values(state))\n .subscribe()\n return state\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport { distinctUntilKeyChanged, map } from \"rxjs/operators\"\n\nimport { Viewport, getElements } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n document$: Observable /* Document observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `code` elements\n *\n * This function will make overflowing code blocks focusable via keyboard, so\n * they can be scrolled without a mouse.\n *\n * @param options - Options\n */\nexport function patchCodeBlocks(\n { document$, viewport$ }: MountOptions\n): void {\n const els$ = document$\n .pipe(\n map(() => getElements(\"pre > code\"))\n )\n\n /* Observe viewport size only */\n const size$ = viewport$\n .pipe(\n distinctUntilKeyChanged(\"size\")\n )\n\n /* Make overflowing elements focusable */\n combineLatest([els$, size$])\n .subscribe(([els]) => {\n for (const el of els) {\n if (el.scrollWidth > el.clientWidth)\n el.setAttribute(\"tabindex\", \"0\")\n else\n el.removeAttribute(\"tabindex\")\n }\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport {\n filter,\n map,\n switchMapTo,\n tap\n} from \"rxjs/operators\"\n\nimport {\n getElement,\n getElements,\n watchMedia\n} from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n hash$: Observable /* Location hash observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `details` elements\n *\n * This function will ensure that all `details` tags are opened prior to\n * printing, so the whole content of the page is included, and on anchor jumps.\n *\n * @param options - Options\n */\nexport function patchDetails(\n { document$, hash$ }: PatchOptions\n): void {\n const els$ = document$\n .pipe(\n map(() => getElements(\"details\"))\n )\n\n /* Open all details before printing */\n merge(\n watchMedia(\"print\").pipe(filter(Boolean)), /* Webkit */\n fromEvent(window, \"beforeprint\") /* IE, FF */\n )\n .pipe(\n switchMapTo(els$)\n )\n .subscribe(els => {\n for (const el of els)\n el.setAttribute(\"open\", \"\")\n })\n\n /* Open parent details and fix anchor jump */\n hash$\n .pipe(\n map(id => getElement(`[id=\"${id}\"]`)!),\n filter(el => typeof el !== \"undefined\"),\n tap(el => {\n const details = el.closest(\"details\")\n if (details && !details.open)\n details.setAttribute(\"open\", \"\")\n })\n )\n .subscribe(el => el.scrollIntoView())\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { EMPTY, Observable, noop, of } from \"rxjs\"\nimport {\n concatMap,\n map,\n skip,\n switchMap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n createElement,\n getElements,\n replaceElement\n} from \"browser\"\nimport { useComponent } from \"components\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `script` elements\n *\n * This function must be run after a document switch, which means the first\n * emission must be ignored.\n *\n * @param options - Options\n */\nexport function patchScripts(\n { document$ }: PatchOptions\n): void {\n const els$ = document$\n .pipe(\n skip(1),\n withLatestFrom(useComponent(\"container\")),\n map(([, el]) => getElements(\"script\", el))\n )\n\n /* Evaluate all scripts via replacement in order */\n els$\n .pipe(\n switchMap(els => of(...els)),\n concatMap(el => {\n const script = createElement(\"script\")\n if (el.src) {\n script.src = el.src\n replaceElement(el, script)\n\n /* Complete when script is loaded */\n return new Observable(observer => {\n script.onload = () => observer.complete()\n })\n\n /* Complete immediately */\n } else {\n script.textContent = el.textContent!\n replaceElement(el, script)\n return EMPTY\n }\n })\n )\n .subscribe(noop)\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map } from \"rxjs/operators\"\n\nimport {\n createElement,\n getElements,\n replaceElement\n} from \"browser\"\nimport { renderTable } from \"templates\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `table` elements\n *\n * This function will re-render all tables by wrapping them to improve overflow\n * scrolling on smaller screen sizes.\n *\n * @param options - Options\n */\nexport function patchTables(\n { document$ }: MountOptions\n): void {\n const sentinel = createElement(\"table\")\n document$\n .pipe(\n map(() => getElements(\"table:not([class])\"))\n )\n .subscribe(els => {\n for (const el of els) {\n replaceElement(el, sentinel)\n replaceElement(sentinel, renderTable(el))\n }\n })\n}\n"],"sourceRoot":""} \ No newline at end of file diff --git a/material/assets/javascripts/bundle.9db80570.min.js b/material/assets/javascripts/bundle.9db80570.min.js deleted file mode 100644 index 6bbb635c2..000000000 --- a/material/assets/javascripts/bundle.9db80570.min.js +++ /dev/null @@ -1,2 +0,0 @@ -!function(t,e){for(var n in e)t[n]=e[n]}(window,function(t){function e(e){for(var r,i,o=e[0],u=e[1],f=e[2],s=0,l=[];s0}function N(){return new I.a(new URL(location.href))}var F=n(86);function Q(t,e){return e.location$.pipe(Object(F.a)(1),Object(j.a)((function(e){var n=e.href;return new URL(t,n).toString().replace(/\/$/,"")})),Object(T.a)({bufferSize:1,refCount:!0}))}function B(){return location.hash.substring(1)}function W(t){var e=s("a");e.href=t,e.addEventListener("click",(function(t){return t.stopPropagation()})),e.click()}function Y(){return Object(c.a)(window,"hashchange").pipe(Object(j.a)(B),Object(d.a)(B()),Object(A.a)((function(t){return t.length>0})),Object(z.a)())}var J=n(7);function K(t){var e=matchMedia(t);return new J.a((function(t){e.addListener((function(e){return t.next(e.matches)}))})).pipe(Object(d.a)(e.matches),Object(T.a)({bufferSize:1,refCount:!0}))}var X={drawer:u("[data-md-toggle=drawer]"),search:u("[data-md-toggle=search]")};function G(t){return X[t].checked}function V(t,e){X[t].checked!==e&&X[t].click()}function Z(t){var e=X[t];return Object(c.a)(e,"change").pipe(Object(j.a)((function(){return e.checked})),Object(d.a)(e.checked))}var tt=n(48),et=n(77);function nt(){return{x:Math.max(0,pageXOffset),y:Math.max(0,pageYOffset)}}function rt(t){var e=t.x,n=t.y;window.scrollTo(e||0,n||0)}function ct(){return{width:innerWidth,height:innerHeight}}function at(){return Object(tt.a)([Object(O.a)(Object(c.a)(window,"scroll",{passive:!0}),Object(c.a)(window,"resize",{passive:!0})).pipe(Object(j.a)(nt),Object(d.a)(nt())),Object(c.a)(window,"resize",{passive:!0}).pipe(Object(j.a)(ct),Object(d.a)(ct()))]).pipe(Object(j.a)((function(t){var e=Object(g.f)(t,2);return{offset:e[0],size:e[1]}})),Object(T.a)({bufferSize:1,refCount:!0}))}function it(t,e){var n=e.header$,r=e.viewport$,c=r.pipe(Object(et.a)("size")),a=Object(tt.a)([c,n]).pipe(Object(j.a)((function(){return{x:t.offsetLeft,y:t.offsetTop}})));return Object(tt.a)([n,r,a]).pipe(Object(j.a)((function(t){var e=Object(g.f)(t,3),n=e[0].height,r=e[1],c=r.offset,a=r.size,i=e[2],o=i.x,u=i.y;return{offset:{x:c.x-o,y:c.y-u+n},size:a}})))}var ot=n(87),ut=n(88);function ft(t,e){var n=e.tx$,r=Object(c.a)(t,"message").pipe(Object(j.a)((function(t){return t.data})));return n.pipe(Object(ot.a)((function(){return r}),{leading:!0,trailing:!0}),Object(E.a)((function(e){return t.postMessage(e)})),Object(ut.a)(r),Object(z.a)())}},function(t,e,n){"use strict";function r(t){return"object"==typeof t&&"string"==typeof t.base&&"object"==typeof t.features&&"object"==typeof t.search}n.d(e,"d",(function(){return r})),n.d(e,"b",(function(){return i})),n.d(e,"a",(function(){return f})),n.d(e,"f",(function(){return l})),n.d(e,"g",(function(){return O})),n.d(e,"e",(function(){return j})),n.d(e,"c",(function(){return d}));var c=n(0);function a(t,e){var n,r;if("string"==typeof e||"number"==typeof e)t.innerHTML+=e.toString();else if(e instanceof Node)t.appendChild(e);else if(Array.isArray(e))try{for(var i=Object(c.i)(e),o=i.next();!o.done;o=i.next()){a(t,o.value)}}catch(t){n={error:t}}finally{try{o&&!o.done&&(r=i.return)&&r.call(i)}finally{if(n)throw n.error}}}function i(t,e){for(var n,r,i,o,u=[],f=2;fn){for(;" "!==t[n]&&--n>0;);return t.substring(0,n)+"..."}return t}function j(t){return t>999?((t+1e-6)/1e3).toFixed(+((t-950)%1e3>99))+"k":t.toString()}function d(t){for(var e=0,n=0,r=t.length;n code").forEach((function(t,e){var n=t.parentElement;n.id="__code_"+e,n.insertBefore(Object(b.a)(n.id),t)}))}));var l=new a.a((function(t){new r(".md-clipboard").on("success",(function(e){return t.next(e)}))})).pipe(Object(i.a)());return l.pipe(Object(o.a)((function(t){return t.clearSelection()})),Object(u.a)(Object(s.f)("clipboard.copied"))).subscribe(n),l}var O=n(33),j=n(47),d=n(69),p=n(19),h=n(21),v=n(12),m=n(68),y=n(98);function g(t){var e=(void 0===t?{}:t).duration,n=new O.a,r=Object(f.a)("div");return r.classList.add("md-dialog","md-typeset"),n.pipe(Object(h.a)((function(t){return Object(j.a)(document.body).pipe(Object(v.a)((function(t){return t.appendChild(r)})),Object(m.a)(d.a),Object(y.a)(1),Object(o.a)((function(e){e.innerHTML=t,e.setAttribute("data-md-state","open")})),Object(y.a)(e||2e3),Object(o.a)((function(t){return t.removeAttribute("data-md-state")})),Object(y.a)(400),Object(o.a)((function(t){t.innerHTML="",t.remove()})))}))).subscribe(p.a),n}var w=n(0),x=n(81),$=n(96),S=n(10),k=n(84),C=n(37),_=n(77),T=n(90),E=n(91),A=n(89),L=n(78),M=n(92),R=n(79);function z(t,e){var n=e.document$,r=e.viewport$,a=e.location$;"scrollRestoration"in history&&(history.scrollRestoration="manual"),Object(x.a)(window,"beforeunload").subscribe((function(){history.scrollRestoration="auto"}));var o=Object(f.c)('link[rel="shortcut icon"]');void 0!==o&&(o.href=o.href);var u=Object(x.a)(document.body,"click").pipe(Object(k.a)((function(t){return!(t.metaKey||t.ctrlKey)})),Object(h.a)((function(e){if(e.target instanceof HTMLElement){var n=e.target.closest("a");if(n&&!n.target&&Object(f.h)(n)&&t.includes(n.href))return Object(f.g)(n)||e.preventDefault(),Object(j.a)(n)}return c.a})),Object(v.a)((function(t){return{url:new URL(t.href)}})),Object(i.a)());u.subscribe((function(){Object(f.o)("search",!1)}));var b=u.pipe(Object(k.a)((function(t){var e=t.url;return!Object(f.g)(e)})),Object(i.a)()),s=Object(x.a)(window,"popstate").pipe(Object(k.a)((function(t){return null!==t.state})),Object(v.a)((function(t){return{url:new URL(location.href),offset:t.state}})),Object(i.a)());Object($.a)(b,s).pipe(Object(C.a)((function(t,e){return t.url.href===e.url.href})),Object(v.a)((function(t){return t.url}))).subscribe(a);var l=a.pipe(Object(_.a)("pathname"),Object(T.a)(1),Object(h.a)((function(t){return Object(S.a)(fetch(t.href,{credentials:"same-origin"}).then((function(t){return t.text()}))).pipe(Object(E.a)((function(){return Object(f.m)(t),c.a})))})),Object(i.a)());b.pipe(Object(A.a)(l)).subscribe((function(t){var e=t.url;history.pushState({},"",e.toString())}));var O=new DOMParser;l.pipe(Object(v.a)((function(t){return O.parseFromString(t,"text/html")}))).subscribe(n);var d=Object($.a)(b,s).pipe(Object(A.a)(n));d.subscribe((function(t){var e=t.url,n=t.offset;e.hash&&!n?Object(f.n)(e.hash):Object(f.p)(n||{y:0})})),d.pipe(Object(L.a)(n)).subscribe((function(t){var e,n,r=Object(w.f)(t,2)[1],c=r.title,a=r.head;document.title=c;try{for(var i=Object(w.i)(['link[rel="canonical"]','meta[name="author"]','meta[name="description"]']),o=i.next();!o.done;o=i.next()){var u=o.value,b=Object(f.c)(u,a),s=Object(f.c)(u,document.head);void 0!==b&&void 0!==s&&Object(f.j)(s,b)}}catch(t){e={error:t}}finally{try{o&&!o.done&&(n=i.return)&&n.call(i)}finally{if(e)throw e.error}}document.dispatchEvent(new CustomEvent("DOMContentSwitch"))})),r.pipe(Object(M.a)(250),Object(_.a)("offset")).subscribe((function(t){var e=t.offset;history.replaceState(e,"")})),Object($.a)(u,s).pipe(Object(R.a)(2,1),Object(k.a)((function(t){var e=Object(w.f)(t,2),n=e[0],r=e[1];return n.url.pathname===r.url.pathname&&!Object(f.g)(r.url)})),Object(v.a)((function(t){return Object(w.f)(t,2)[1]}))).subscribe((function(t){var e=t.offset;Object(f.p)(e||{y:0})}))}var P=n(9);function H(){var t=Object(f.u)().pipe(Object(v.a)((function(t){return Object(w.a)({mode:Object(f.f)("search")?"search":"global"},t)})),Object(k.a)((function(t){if("global"===t.mode){var e=Object(f.b)();if(void 0!==e)return!Object(f.i)(e)}return!0})),Object(i.a)());return t.pipe(Object(k.a)((function(t){return"search"===t.mode})),Object(L.a)(Object(P.useComponent)("search-query"),Object(P.useComponent)("search-result"))).subscribe((function(t){var e=Object(w.f)(t,3),n=e[0],r=e[1],c=e[2],a=Object(f.b)();switch(n.type){case"Enter":a===r&&n.claim();break;case"Escape":case"Tab":Object(f.o)("search",!1),Object(f.k)(r,!1);break;case"ArrowUp":case"ArrowDown":if(void 0===a)Object(f.k)(r);else{var i=Object(w.g)([r],Object(f.e)(":not(details) > [href], summary, details[open] [href]",c)),o=Math.max(0,(Math.max(0,i.indexOf(a))+i.length+("ArrowUp"===n.type?-1:1))%i.length);Object(f.k)(i[o])}n.claim();break;default:r!==Object(f.b)()&&Object(f.k)(r)}})),t.pipe(Object(k.a)((function(t){return"global"===t.mode})),Object(L.a)(Object(P.useComponent)("search-query"))).subscribe((function(t){var e=Object(w.f)(t,2),n=e[0],r=e[1];switch(n.type){case"f":case"s":case"/":Object(f.k)(r),Object(f.l)(r),n.claim();break;case"p":case",":var c=Object(f.c)("[href][rel=prev]");void 0!==c&&c.click();break;case"n":case".":var a=Object(f.c)("[href][rel=next]");void 0!==a&&a.click()}})),t}var I=n(36)},,,,,function(t,e,n){"use strict";n.d(e,"a",(function(){return O})),n.d(e,"b",(function(){return j}));var r,c=n(0),a=n(47),i=n(27),o=n(12),u=n(67),f=n(76),b=n(21),s=n(37),l=n(1);function O(t,e){var n=e.document$;r=n.pipe(Object(o.a)((function(e){return t.reduce((function(t,n){var r,a=Object(l.c)("[data-md-component="+n+"]",e);return Object(c.a)(Object(c.a)({},t),void 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0!==e?"https://api.github.com/repos/"+t+"/"+e:"https://api.github.com/users/"+t;return Object(a.a)(fetch(n).then((function(t){return t.json()}))).pipe(Object(y.a)((function(t){if(void 0!==e){var n=t.stargazers_count,r=t.forks_count;return[Object(P.e)(n||0)+" Stars",Object(P.e)(r||0)+" Forks"]}var c=t.public_repos;return[Object(P.e)(c||0)+" Repositories"]})))}(e[1],e[2]);case"gitlab":var n=Object(r.f)(t.match(/^.+?([^\/]*gitlab[^\/]+)\/(.+?)\/?$/i),3);return function(t,e){var n="https://"+t+"/api/v4/projects/"+encodeURIComponent(e);return Object(a.a)(fetch(n).then((function(t){return t.json()}))).pipe(Object(y.a)((function(t){var e=t.star_count,n=t.forks_count;return[Object(P.e)(e)+" Stars",Object(P.e)(n)+" Forks"]})))}(n[1],n[2]);default:return o.a}}function I(t,e){t.setAttribute("data-md-state","lock"),t.style.top="-"+e+"px"}function U(t){var e=-1*parseInt(t.style.top,10);t.removeAttribute("data-md-state"),t.style.top="",e&&window.scrollTo(0,e)}function q(t){if(!Object(P.d)(t))throw new SyntaxError("Invalid configuration: "+JSON.stringify(t));var e=Object(w.q)(),n=Object(w.v)(),q=Object(w.w)(t.base,{location$:n}),D=Object(w.x)(),N=Object(w.A)(),F=Object(w.y)("(min-width: 960px)"),Q=Object(w.y)("(min-width: 1220px)");Object(x.setupComponents)(["announce","container","header","header-title","main","navigation","search","search-query","search-reset","search-result","skip","tabs","toc"],{document$:e});var B=Object($.h)();matchMedia("(hover)").matches&&function(t){var e=t.document$,n=t.viewport$,c=e.pipe(Object(y.a)((function(){return Object(w.e)("pre > code")}))),a=n.pipe(Object(S.a)("size"));Object(u.a)([c,a]).subscribe((function(t){var e,n,c=Object(r.f)(t,1)[0];try{for(var a=Object(r.i)(c),i=a.next();!i.done;i=a.next()){var o=i.value;o.scrollWidth>o.clientWidth?o.setAttribute("tabindex","0"):o.removeAttribute("tabindex")}}catch(t){e={error:t}}finally{try{i&&!i.done&&(n=a.return)&&n.call(a)}finally{if(e)throw e.error}}}))}({document$:e,viewport$:N}),function(t){var e=t.document$,n=t.hash$,c=e.pipe(Object(y.a)((function(){return Object(w.e)("details")})));Object(s.a)(Object(w.y)("print").pipe(Object(m.a)(Boolean)),Object(b.a)(window,"beforeprint")).pipe(Object(k.a)(c)).subscribe((function(t){var e,n;try{for(var c=Object(r.i)(t),a=c.next();!a.done;a=c.next()){a.value.setAttribute("open","")}}catch(t){e={error:t}}finally{try{a&&!a.done&&(n=c.return)&&n.call(c)}finally{if(e)throw e.error}}})),n.pipe(Object(y.a)((function(t){return Object(w.c)('[id="'+t+'"]')})),Object(m.a)((function(t){return void 0!==t})),Object(d.a)((function(t){var e=t.closest("details");e&&!e.open&&e.setAttribute("open","")}))).subscribe((function(t){return t.scrollIntoView()}))}({document$:e,hash$:D}),{document$:e}.document$.pipe(Object(E.a)(1),Object(h.a)(Object(x.useComponent)("container")),Object(y.a)((function(t){var e=Object(r.f)(t,2)[1];return Object(w.e)("script",e)}))).pipe(Object(O.a)((function(t){return i.a.apply(void 0,Object(r.g)(t))})),Object(A.a)((function(t){var e=Object(w.a)("script");return t.src?(e.src=t.src,Object(w.j)(t,e),new C.a((function(t){e.onload=function(){return t.complete()}}))):(e.textContent=t.textContent,Object(w.j)(t,e),_.a)}))).subscribe(T.a),function(t){t.document$.pipe(Object(y.a)((function(){return Object(w.d)(".md-source[href]")})),Object(O.a)((function(t){var e=t.href;return Object(P.a)(""+Object(P.c)(e),(function(){return H(e)}))})),Object(j.a)((function(){return o.a}))).subscribe((function(t){var e,n;try{for(var c=Object(r.i)(Object(w.e)(".md-source__repository")),a=c.next();!a.done;a=c.next()){var i=a.value;i.hasAttribute("data-md-state")||(i.setAttribute("data-md-state","done"),i.appendChild(Object(z.c)(t)))}}catch(t){e={error:t}}finally{try{a&&!a.done&&(n=c.return)&&n.call(c)}finally{if(e)throw e.error}}}))}({document$:e}),function(t){var e=t.document$,n=Object(w.a)("table");e.pipe(Object(y.a)((function(){return Object(w.e)("table:not([class])")}))).subscribe((function(t){var e,c;try{for(var a=Object(r.i)(t),i=a.next();!i.done;i=a.next()){var o=i.value;Object(w.j)(o,n),Object(w.j)(n,Object(z.d)(o))}}catch(t){e={error:t}}finally{try{i&&!i.done&&(c=a.return)&&c.call(a)}finally{if(e)throw e.error}}}))}({document$:e}),function(t){var e=t.document$.pipe(Object(y.a)((function(){return Object(w.e)("[data-md-scrollfix]")})),Object(l.a)({bufferSize:1,refCount:!0}));e.subscribe((function(t){var e,n;try{for(var c=Object(r.i)(t),a=c.next();!a.done;a=c.next()){a.value.removeAttribute("data-md-scrollfix")}}catch(t){e={error:t}}finally{try{a&&!a.done&&(n=c.return)&&n.call(c)}finally{if(e)throw e.error}}})),Object(L.a)(R,e,o.a).pipe(Object(O.a)((function(t){return s.a.apply(void 0,Object(r.g)(t.map((function(t){return Object(b.a)(t,"touchstart").pipe(Object(M.a)(t))}))))}))).subscribe((function(t){var e=t.scrollTop;0===e?t.scrollTop=1:e+t.offsetHeight===t.scrollHeight&&(t.scrollTop=e-1)}))}({document$:e});var W=Object($.f)(),Y=Object($.e)({document$:e,dialog$:W}),J=Object(x.useComponent)("header").pipe(Object(x.mountHeader)({document$:e,viewport$:N}),Object(l.a)({bufferSize:1,refCount:!0})),K=Object(x.useComponent)("main").pipe(Object(x.mountMain)({header$:J,viewport$:N}),Object(l.a)({bufferSize:1,refCount:!0})),X=Object(x.useComponent)("navigation").pipe(Object(x.mountNavigation)({header$:J,main$:K,viewport$:N,screen$:Q}),Object(l.a)({bufferSize:1,refCount:!0})),G=Object(x.useComponent)("toc").pipe(Object(x.mountTableOfContents)({header$:J,main$:K,viewport$:N,tablet$:F}),Object(l.a)({bufferSize:1,refCount:!0})),V=Object(x.useComponent)("tabs").pipe(Object(x.mountTabs)({header$:J,viewport$:N,screen$:Q}),Object(l.a)({bufferSize:1,refCount:!0})),Z=Object(x.useComponent)("search").pipe(Object(O.a)((function(){return Object(c.a)((function(){var e=t.search&&t.search.index?t.search.index:void 0,n=void 0!==e?Object(a.a)(e):q.pipe(Object(O.a)((function(t){return fetch(t+"/search/search_index.json",{credentials:"same-origin"}).then((function(t){return t.json()}))})));return Object(i.a)(Object($.i)(t.search.worker,{base$:q,index$:n}))}))}))).pipe(Object(O.a)((function(e){var n=Object(x.useComponent)("search-query").pipe(Object(x.mountSearchQuery)(e,{transform:t.search.transform}),Object(l.a)({bufferSize:1,refCount:!0})),r=Object(x.useComponent)("search-reset").pipe(Object(x.mountSearchReset)(),Object(l.a)({bufferSize:1,refCount:!0})),c=Object(x.useComponent)("search-result").pipe(Object(x.mountSearchResult)(e,{query$:n}),Object(l.a)({bufferSize:1,refCount:!0}));return Object(x.useComponent)("search").pipe(Object(x.mountSearch)(e,{query$:n,reset$:r,result$:c}))})),Object(j.a)((function(){return Object(x.useComponent)("search").subscribe((function(t){return t.hidden=!0})),o.a})),Object(l.a)({bufferSize:1,refCount:!0}));if(D.pipe(Object(d.a)((function(){return Object(w.o)("search",!1)})),Object(p.a)(125)).subscribe((function(t){return Object(w.n)("#"+t)})),Object(u.a)([Object(w.z)("search"),F]).pipe(Object(h.a)(N),Object(O.a)((function(t){var n=Object(r.f)(t,2),c=Object(r.f)(n[0],2),a=c[0],i=c[1],o=n[1].offset.y,u=a&&!i;return e.pipe(Object(p.a)(u?400:100),Object(v.a)(f.a),Object(d.a)((function(t){var e=t.body;return u?I(e,o):U(e)})))}))).subscribe(),Object(b.a)(document.body,"click").pipe(Object(m.a)((function(t){return!(t.metaKey||t.ctrlKey)})),Object(m.a)((function(t){if(t.target instanceof HTMLElement){var e=t.target.closest("a");if(e&&Object(w.h)(e))return!0}return!1}))).subscribe((function(){Object(w.o)("drawer",!1)})),t.features.includes("navigation.instant")&&"file:"!==location.protocol){var tt=new DOMParser;q.pipe(Object(O.a)((function(t){return Object(a.a)(fetch(t+"/sitemap.xml").then((function(t){return t.text()})).then((function(t){return tt.parseFromString(t,"text/xml")})))})),Object(h.a)(q),Object(y.a)((function(t){var e=Object(r.f)(t,2),n=e[0],c=e[1],a=Object(w.e)("loc",n).map((function(t){return t.textContent}));if(a.length>1){var i=Object(r.f)(a.sort((function(t,e){return t.length-e.length})),2),o=i[0],u=i[1],f=0;if(o===u)f=o.length;else for(;o.charAt(f)===u.charAt(f);)f++;for(var b=0;b\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ReplaySubject, Subject, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch document\n *\n * Documents must be implemented as subjects, so all downstream observables are\n * automatically updated when a new document is emitted. This enabled features\n * like instant loading.\n *\n * @return Document subject\n */\nexport function watchDocument(): Subject {\n const document$ = new ReplaySubject()\n fromEvent(document, \"DOMContentLoaded\")\n .pipe(\n mapTo(document)\n )\n .subscribe(document$)\n\n /* Return document */\n return document$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve an element matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Element or nothing\n */\nexport function getElement(\n selector: string, node: ParentNode = document\n): T | undefined {\n return node.querySelector(selector) || undefined\n}\n\n/**\n * Retrieve an element matching a query selector or throw a reference error\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Element\n */\nexport function getElementOrThrow(\n selector: string, node: ParentNode = document\n): T {\n const el = getElement(selector, node)\n if (typeof el === \"undefined\")\n throw new ReferenceError(\n `Missing element: expected \"${selector}\" to be present`\n )\n return el\n}\n\n/**\n * Retrieve the currently active element\n *\n * @return Element or nothing\n */\nexport function getActiveElement(): HTMLElement | undefined {\n return document.activeElement instanceof HTMLElement\n ? document.activeElement\n : undefined\n}\n\n/**\n * Retrieve all elements matching the query selector\n *\n * @template T - Element type\n *\n * @param selector - Query selector\n * @param node - Node of reference\n *\n * @return Elements\n */\nexport function getElements(\n selector: string, node: ParentNode = document\n): T[] {\n return Array.from(node.querySelectorAll(selector))\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Create an element\n *\n * @template T - Tag name type\n *\n * @param tagName - Tag name\n *\n * @return Element\n */\nexport function createElement(\n tagName: T\n): HTMLElementTagNameMap[T] {\n return document.createElement(tagName)\n}\n\n/**\n * Replace an element with another element\n *\n * @param source - Source element\n * @param target - Target element\n */\nexport function replaceElement(\n source: HTMLElement, target: Node\n): void {\n source.replaceWith(target)\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getActiveElement } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element focus\n *\n * @param el - Element\n * @param value - Whether the element should be focused\n */\nexport function setElementFocus(\n el: HTMLElement, value: boolean = true\n): void {\n if (value)\n el.focus()\n else\n el.blur()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element focus\n *\n * @param el - Element\n *\n * @return Element focus observable\n */\nexport function watchElementFocus(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(el, \"focus\"),\n fromEvent(el, \"blur\")\n )\n .pipe(\n map(({ type }) => type === \"focus\"),\n startWith(el === getActiveElement())\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementOffset {\n x: number /* Horizontal offset */\n y: number /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element offset\n *\n * @param el - Element\n *\n * @return Element offset\n */\nexport function getElementOffset(el: HTMLElement): ElementOffset {\n return {\n x: el.scrollLeft,\n y: el.scrollTop\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element offset\n *\n * @param el - Element\n *\n * @return Element offset observable\n */\nexport function watchElementOffset(\n el: HTMLElement\n): Observable {\n return merge(\n fromEvent(el, \"scroll\"),\n fromEvent(window, \"resize\")\n )\n .pipe(\n map(() => getElementOffset(el)),\n startWith(getElementOffset(el))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set element text selection\n *\n * @param el - Element\n */\nexport function setElementSelection(\n el: HTMLElement\n): void {\n if (el instanceof HTMLInputElement)\n el.select()\n else\n throw new Error(\"Not implemented\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport ResizeObserver from \"resize-observer-polyfill\"\nimport {\n NEVER,\n Observable,\n Subject,\n defer,\n merge,\n of\n} from \"rxjs\"\nimport {\n filter,\n finalize,\n map,\n shareReplay,\n startWith,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Element offset\n */\nexport interface ElementSize {\n width: number /* Element width */\n height: number /* Element height */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Resize observer entry subject\n */\nconst entry$ = new Subject()\n\n/**\n * Resize observer observable\n *\n * This observable will create a `ResizeObserver` on the first subscription\n * and will automatically terminate it when there are no more subscribers.\n * It's quite important to centralize observation in a single `ResizeObserver`,\n * as the performance difference can be quite dramatic, as the link shows.\n *\n * @see https://bit.ly/3iIYfEm - Google Groups on performance\n */\nconst observer$ = defer(() => of(\n new ResizeObserver(entries => {\n for (const entry of entries)\n entry$.next(entry)\n })\n))\n .pipe(\n switchMap(resize => merge(of(resize), NEVER)\n .pipe(\n finalize(() => resize.disconnect())\n )\n ),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve element size\n *\n * @param el - Element\n *\n * @return Element size\n */\nexport function getElementSize(el: HTMLElement): ElementSize {\n return {\n width: el.offsetWidth,\n height: el.offsetHeight\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch element size\n *\n * This function returns an observable that will subscribe to a single internal\n * instance of `ResizeObserver` upon subscription, and emit resize events until\n * termination. Note that this function should not be called with the same\n * element twice, as the first unsubscription will terminate observation.\n *\n * @param el - Element\n *\n * @return Element size observable\n */\nexport function watchElementSize(\n el: HTMLElement\n): Observable {\n return observer$\n .pipe(\n tap(observer => observer.observe(el)),\n switchMap(observer => entry$\n .pipe(\n filter(({ target }) => target === el),\n finalize(() => observer.unobserve(el)),\n map(({ contentRect }) => ({\n width: contentRect.width,\n height: contentRect.height\n }))\n )\n ),\n startWith(getElementSize(el))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Key\n */\nexport interface Key {\n type: string /* Key type */\n claim(): void /* Key claim */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether an element may receive keyboard input\n *\n * @param el - Element\n *\n * @return Test result\n */\nexport function isSusceptibleToKeyboard(el: HTMLElement): boolean {\n switch (el.tagName) {\n\n /* Form elements */\n case \"INPUT\":\n case \"SELECT\":\n case \"TEXTAREA\":\n return true\n\n /* Everything else */\n default:\n return el.isContentEditable\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch keyboard\n *\n * @return Keyboard observable\n */\nexport function watchKeyboard(): Observable {\n return fromEvent(window, \"keydown\")\n .pipe(\n filter(ev => !(ev.metaKey || ev.ctrlKey)),\n map(ev => ({\n type: ev.key,\n claim() {\n ev.preventDefault()\n ev.stopPropagation()\n }\n })),\n share()\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { BehaviorSubject, Subject } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location\n *\n * This function will return a `URL` object (and not `Location`) in order to\n * normalize typings across the application. Furthermore, locations need to be\n * tracked without setting them and `Location` is a singleton which represents\n * the current location.\n *\n * @return URL\n */\nexport function getLocation(): URL {\n return new URL(location.href)\n}\n\n/**\n * Set location\n *\n * @param url - URL to change to\n */\nexport function setLocation(url: URL): void {\n location.href = url.href\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Check whether a URL is a local link or a file (except `.html`)\n *\n * @param url - URL or HTML anchor element\n * @param ref - Reference URL\n *\n * @return Test result\n */\nexport function isLocalLocation(\n url: URL | HTMLAnchorElement,\n ref: URL | Location = location\n): boolean {\n return url.host === ref.host\n && /^(?:\\/[\\w-]+)*(?:\\/?|\\.html)$/i.test(url.pathname)\n}\n\n/**\n * Check whether a URL is an anchor link on the current page\n *\n * @param url - URL or HTML anchor element\n * @param ref - Reference URL\n *\n * @return Test result\n */\nexport function isAnchorLocation(\n url: URL | HTMLAnchorElement,\n ref: URL | Location = location\n): boolean {\n return url.pathname === ref.pathname\n && url.hash.length > 0\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location\n *\n * @return Location subject\n */\nexport function watchLocation(): Subject {\n return new BehaviorSubject(getLocation())\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map, shareReplay, take } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n location$: Observable /* Location observable */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location base\n *\n * @return Location base observable\n */\nexport function watchLocationBase(\n base: string, { location$ }: WatchOptions\n): Observable {\n return location$\n .pipe(\n take(1),\n map(({ href }) => new URL(base, href)\n .toString()\n .replace(/\\/$/, \"\")\n ),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { filter, map, share, startWith } from \"rxjs/operators\"\n\nimport { createElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve location hash\n *\n * @return Location hash\n */\nexport function getLocationHash(): string {\n return location.hash.substring(1)\n}\n\n/**\n * Set location hash\n *\n * Setting a new fragment identifier via `location.hash` will have no effect\n * if the value doesn't change. When a new fragment identifier is set, we want\n * the browser to target the respective element at all times, which is why we\n * use this dirty little trick.\n *\n * @param hash - Location hash\n */\nexport function setLocationHash(hash: string): void {\n const el = createElement(\"a\")\n el.href = hash\n el.addEventListener(\"click\", ev => ev.stopPropagation())\n el.click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch location hash\n *\n * @return Location hash observable\n */\nexport function watchLocationHash(): Observable {\n return fromEvent(window, \"hashchange\")\n .pipe(\n map(getLocationHash),\n startWith(getLocationHash()),\n filter(hash => hash.length > 0),\n share()\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { shareReplay, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch media query\n *\n * @param query - Media query\n *\n * @return Media observable\n */\nexport function watchMedia(query: string): Observable {\n const media = matchMedia(query)\n return new Observable(subscriber => {\n media.addListener(ev => subscriber.next(ev.matches))\n })\n .pipe(\n startWith(media.matches),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"../element\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle\n */\nexport type Toggle =\n | \"drawer\" /* Toggle for drawer */\n | \"search\" /* Toggle for search */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Toggle map\n */\nconst toggles: Record = {\n drawer: getElementOrThrow(`[data-md-toggle=drawer]`),\n search: getElementOrThrow(`[data-md-toggle=search]`)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve the value of a toggle\n *\n * @param name - Toggle\n *\n * @return Toggle value\n */\nexport function getToggle(name: Toggle): boolean {\n return toggles[name].checked\n}\n\n/**\n * Set toggle\n *\n * Simulating a click event seems to be the most cross-browser compatible way\n * of changing the value while also emitting a `change` event. Before, Material\n * used `CustomEvent` to programmatically change the value of a toggle, but this\n * is a much simpler and cleaner solution which doesn't require a polyfill.\n *\n * @param name - Toggle\n * @param value - Toggle value\n */\nexport function setToggle(name: Toggle, value: boolean): void {\n if (toggles[name].checked !== value)\n toggles[name].click()\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch toggle\n *\n * @param name - Toggle\n *\n * @return Toggle value observable\n */\nexport function watchToggle(name: Toggle): Observable {\n const el = toggles[name]\n return fromEvent(el, \"change\")\n .pipe(\n map(() => el.checked),\n startWith(el.checked)\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport offset\n */\nexport interface ViewportOffset {\n x: number /* Horizontal offset */\n y: number /* Vertical offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport offset\n *\n * On iOS Safari, viewport offset can be negative due to overflow scrolling.\n * As this may induce strange behaviors downstream, we'll just limit it to 0.\n *\n * @return Viewport offset\n */\nexport function getViewportOffset(): ViewportOffset {\n return {\n x: Math.max(0, pageXOffset),\n y: Math.max(0, pageYOffset)\n }\n}\n\n/**\n * Set viewport offset\n *\n * @param offset - Viewport offset\n */\nexport function setViewportOffset(\n { x, y }: Partial\n): void {\n window.scrollTo(x || 0, y || 0)\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport offset\n *\n * @return Viewport offset observable\n */\nexport function watchViewportOffset(): Observable {\n return merge(\n fromEvent(window, \"scroll\", { passive: true }),\n fromEvent(window, \"resize\", { passive: true })\n )\n .pipe(\n map(getViewportOffset),\n startWith(getViewportOffset())\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { map, startWith } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport size\n */\nexport interface ViewportSize {\n width: number /* Viewport width */\n height: number /* Viewport height */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Retrieve viewport size\n *\n * @return Viewport size\n */\nexport function getViewportSize(): ViewportSize {\n return {\n width: innerWidth,\n height: innerHeight\n }\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport size\n *\n * @return Viewport size observable\n */\nexport function watchViewportSize(): Observable {\n return fromEvent(window, \"resize\", { passive: true })\n .pipe(\n map(getViewportSize),\n startWith(getViewportSize())\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n map,\n shareReplay\n} from \"rxjs/operators\"\n\nimport { Header } from \"components\"\n\nimport {\n ViewportOffset,\n watchViewportOffset\n} from \"../offset\"\nimport {\n ViewportSize,\n watchViewportSize\n} from \"../size\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Viewport\n */\nexport interface Viewport {\n offset: ViewportOffset /* Viewport offset */\n size: ViewportSize /* Viewport size */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch at options\n */\ninterface WatchAtOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch viewport\n *\n * @return Viewport observable\n */\nexport function watchViewport(): Observable {\n return combineLatest([\n watchViewportOffset(),\n watchViewportSize()\n ])\n .pipe(\n map(([offset, size]) => ({ offset, size })),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n\n/**\n * Watch viewport relative to element\n *\n * @param el - Element\n * @param options - Options\n *\n * @return Viewport observable\n */\nexport function watchViewportAt(\n el: HTMLElement, { header$, viewport$ }: WatchAtOptions\n): Observable {\n const size$ = viewport$\n .pipe(\n distinctUntilKeyChanged(\"size\")\n )\n\n /* Compute element offset */\n const offset$ = combineLatest([size$, header$])\n .pipe(\n map((): ViewportOffset => ({\n x: el.offsetLeft,\n y: el.offsetTop\n }))\n )\n\n /* Compute relative viewport, return hot observable */\n return combineLatest([header$, viewport$, offset$])\n .pipe(\n map(([{ height }, { offset, size }, { x, y }]) => ({\n offset: {\n x: offset.x - x,\n y: offset.y - y + height\n },\n size\n }))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject, fromEvent } from \"rxjs\"\nimport {\n map,\n share,\n switchMapTo,\n tap,\n throttle\n} from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Worker message\n */\nexport interface WorkerMessage {\n type: unknown /* Message type */\n data?: unknown /* Message data */\n}\n\n/**\n * Worker handler\n *\n * @template T - Message type\n */\nexport interface WorkerHandler<\n T extends WorkerMessage\n> {\n tx$: Subject /* Message transmission subject */\n rx$: Observable /* Message receive observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n *\n * @template T - Worker message type\n */\ninterface WatchOptions {\n tx$: Observable /* Message transmission observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch a web worker\n *\n * This function returns an observable that will send all values emitted by the\n * message observable to the web worker. Web worker communication is expected\n * to be bidirectional (request-response) and synchronous. Messages that are\n * emitted during a pending request are throttled, the last one is emitted.\n *\n * @param worker - Web worker\n * @param options - Options\n *\n * @return Worker message observable\n */\nexport function watchWorker(\n worker: Worker, { tx$ }: WatchOptions\n): Observable {\n\n /* Intercept messages from worker-like objects */\n const rx$ = fromEvent(worker, \"message\")\n .pipe(\n map(({ data }) => data)\n )\n\n /* Send and receive messages, return hot observable */\n return tx$\n .pipe(\n throttle(() => rx$, { leading: true, trailing: true }),\n tap(message => worker.postMessage(message)),\n switchMapTo(rx$),\n share()\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchTransformFn } from \"integrations\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Feature flags\n */\nexport type Feature =\n | \"navigation.tabs\" /* Tabs navigation */\n | \"navigation.instant\" /* Instant loading */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Configuration\n */\nexport interface Config {\n base: string /* Base URL */\n features: Feature[] /* Feature flags */\n search: {\n worker: string /* Worker URL */\n index?: Promise /* Promise resolving with index */\n transform?: SearchTransformFn /* Transformation function */\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Ensure that the given value is a valid configuration\n *\n * We could use `jsonschema` or any other schema validation framework, but that\n * would just add more bloat to the bundle, so we'll keep it plain and simple.\n *\n * @param config - Configuration\n *\n * @return Test result\n */\nexport function isConfig(config: any): config is Config {\n return typeof config === \"object\"\n && typeof config.base === \"string\"\n && typeof config.features === \"object\"\n && typeof config.search === \"object\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// tslint:disable no-null-keyword\n\nimport { JSX as JSXInternal } from \"preact\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * HTML attributes\n */\ntype Attributes =\n & JSXInternal.HTMLAttributes\n & JSXInternal.SVGAttributes\n & Record\n\n/**\n * Child element\n */\ntype Child =\n | HTMLElement\n | Text\n | string\n | number\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Append a child node to an element\n *\n * @param el - Element\n * @param child - Child node(s)\n */\nfunction appendChild(el: HTMLElement, child: Child | Child[]): void {\n\n /* Handle primitive types (including raw HTML) */\n if (typeof child === \"string\" || typeof child === \"number\") {\n el.innerHTML += child.toString()\n\n /* Handle nodes */\n } else if (child instanceof Node) {\n el.appendChild(child)\n\n /* Handle nested children */\n } else if (Array.isArray(child)) {\n for (const node of child)\n appendChild(el, node)\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * JSX factory\n *\n * @param tag - HTML tag\n * @param attributes - HTML attributes\n * @param children - Child elements\n *\n * @return Element\n */\nexport function h(\n tag: string, attributes: Attributes | null, ...children: Child[]\n): HTMLElement {\n const el = document.createElement(tag)\n\n /* Set attributes, if any */\n if (attributes)\n for (const attr of Object.keys(attributes))\n if (typeof attributes[attr] !== \"boolean\")\n el.setAttribute(attr, attributes[attr])\n else if (attributes[attr])\n el.setAttribute(attr, \"\")\n\n /* Append child nodes */\n for (const child of children)\n appendChild(el, child)\n\n /* Return element */\n return el\n}\n\n/* ----------------------------------------------------------------------------\n * Namespace\n * ------------------------------------------------------------------------- */\n\nexport declare namespace h {\n namespace JSX {\n type Element = HTMLElement\n type IntrinsicElements = JSXInternal.IntrinsicElements\n }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, defer, of } from \"rxjs\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Cache the last value emitted by an observable in session storage\n *\n * If the key is not found in session storage, the factory is executed and the\n * latest value emitted will automatically be persisted to sessions storage.\n * Note that the values emitted by the returned observable must be serializable\n * as `JSON`, or data will be lost.\n *\n * @template T - Value type\n *\n * @param key - Cache key\n * @param factory - Observable factory\n *\n * @return Value observable\n */\nexport function cache(\n key: string, factory: () => Observable\n): Observable {\n return defer(() => {\n const data = sessionStorage.getItem(key)\n if (data) {\n return of(JSON.parse(data) as T)\n\n /* Retrieve value from observable factory and write to storage */\n } else {\n const value$ = factory()\n value$.subscribe(value => {\n try {\n sessionStorage.setItem(key, JSON.stringify(value))\n } catch (err) {\n /* Uncritical, just swallow */\n }\n })\n\n /* Return value */\n return value$\n }\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { getElementOrThrow } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Translation keys\n */\ntype TranslateKey =\n | \"clipboard.copy\" /* Copy to clipboard */\n | \"clipboard.copied\" /* Copied to clipboard */\n | \"search.config.lang\" /* Search language */\n | \"search.config.pipeline\" /* Search pipeline */\n | \"search.config.separator\" /* Search separator */\n | \"search.result.placeholder\" /* Type to start searching */\n | \"search.result.none\" /* No matching documents */\n | \"search.result.one\" /* 1 matching document */\n | \"search.result.other\" /* # matching documents */\n | \"search.result.more.one\" /* 1 more on this page */\n | \"search.result.more.other\" /* # more on this page */\n | \"search.result.term.missing\" /* Missing */\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Translations\n */\nlet lang: Record\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Translate the given key\n *\n * @param key - Key to be translated\n * @param value - Value to be replaced\n *\n * @return Translation\n */\nexport function translate(\n key: TranslateKey, value?: string | number\n): string {\n if (typeof lang === \"undefined\") {\n const el = getElementOrThrow(\"#__lang\")\n lang = JSON.parse(el.textContent!)\n }\n if (typeof lang[key] === \"undefined\") {\n throw new ReferenceError(`Invalid translation: ${key}`)\n }\n return typeof value !== \"undefined\"\n ? lang[key].replace(\"#\", value.toString())\n : lang[key]\n}\n\n/**\n * Truncate a string after the given number of characters\n *\n * This is not a very reasonable approach, since the summaries kind of suck.\n * It would be better to create something more intelligent, highlighting the\n * search occurrences and making a better summary out of it, but this note was\n * written three years ago, so who knows if we'll ever fix it.\n *\n * @param value - Value to be truncated\n * @param n - Number of characters\n *\n * @return Truncated value\n */\nexport function truncate(value: string, n: number): string {\n let i = n\n if (value.length > i) {\n while (value[i] !== \" \" && --i > 0); // tslint:disable-line\n return `${value.substring(0, i)}...`\n }\n return value\n}\n\n/**\n * Round a number for display with source facts\n *\n * This is a reverse engineered version of GitHub's weird rounding algorithm\n * for stars, forks and all other numbers. While all numbers below `1,000` are\n * returned as-is, bigger numbers are converted to fixed numbers:\n *\n * - `1,049` => `1k`\n * - `1,050` => `1.1k`\n * - `1,949` => `1.9k`\n * - `1,950` => `2k`\n *\n * @param value - Original value\n *\n * @return Rounded value\n */\nexport function round(value: number): string {\n if (value > 999) {\n const digits = +((value - 950) % 1000 > 99)\n return `${((value + 0.000001) / 1000).toFixed(digits)}k`\n } else {\n return value.toString()\n }\n}\n\n/**\n * Simple hash function\n *\n * @see https://bit.ly/2wsVjJ4 - Original source\n *\n * @param value - Value to be hashed\n *\n * @return Hash as 32bit integer\n */\nexport function hash(value: string): number {\n let h = 0\n for (let i = 0, len = value.length; i < len; i++) {\n h = ((h << 5) - h) + value.charCodeAt(i)\n h |= 0 // Convert to 32bit integer\n }\n return h\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./header\"\nexport * from \"./main\"\nexport * from \"./navigation\"\nexport * from \"./search\"\nexport * from \"./shared\"\nexport * from \"./tabs\"\nexport * from \"./toc\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport * as ClipboardJS from \"clipboard\"\nimport { NEVER, Observable, Subject } from \"rxjs\"\nimport { mapTo, share, tap } from \"rxjs/operators\"\n\nimport { getElements } from \"browser\"\nimport { renderClipboardButton } from \"templates\"\nimport { translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n document$: Observable /* Document observable */\n dialog$: Subject /* Dialog subject */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up clipboard\n *\n * This function implements the Clipboard.js integration and injects a button\n * into all code blocks when the document changes.\n *\n * @param options - Options\n *\n * @return Clipboard observable\n */\nexport function setupClipboard(\n { document$, dialog$ }: SetupOptions\n): Observable {\n if (!ClipboardJS.isSupported())\n return NEVER\n\n /* Inject 'copy-to-clipboard' buttons */\n document$.subscribe(() => {\n const blocks = getElements(\"pre > code\")\n blocks.forEach((block, index) => {\n const parent = block.parentElement!\n parent.id = `__code_${index}`\n parent.insertBefore(\n renderClipboardButton(parent.id),\n block\n )\n })\n })\n\n /* Initialize clipboard */\n const clipboard$ = new Observable(subscriber => {\n new ClipboardJS(\".md-clipboard\").on(\"success\", ev => subscriber.next(ev))\n })\n .pipe(\n share()\n )\n\n /* Display notification for clipboard event */\n clipboard$\n .pipe(\n tap(ev => ev.clearSelection()),\n mapTo(translate(\"clipboard.copied\"))\n )\n .subscribe(dialog$)\n\n /* Return clipboard */\n return clipboard$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Subject, animationFrameScheduler, noop, of } from \"rxjs\"\nimport {\n delay,\n map,\n observeOn,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { createElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n duration?: number /* Display duration (default: 2s) */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up dialog\n *\n * @param options - Options\n *\n * @return Dialog observable\n */\nexport function setupDialog(\n { duration }: SetupOptions = {}\n): Subject {\n const dialog$ = new Subject()\n\n /* Create dialog */\n const dialog = createElement(\"div\") // TODO: improve scoping\n dialog.classList.add(\"md-dialog\", \"md-typeset\")\n\n /* Display dialog */\n dialog$\n .pipe(\n switchMap(text => of(document.body) // useComponent(\"container\")\n .pipe(\n map(container => container.appendChild(dialog)),\n observeOn(animationFrameScheduler),\n delay(1), // Strangley it doesnt work when we push things to the new animation frame...\n tap(el => {\n el.innerHTML = text\n el.setAttribute(\"data-md-state\", \"open\")\n }),\n delay(duration || 2000),\n tap(el => el.removeAttribute(\"data-md-state\")),\n delay(400),\n tap(el => {\n el.innerHTML = \"\"\n el.remove()\n })\n )\n )\n )\n .subscribe(noop)\n\n /* Return dialog */\n return dialog$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, Subject, from, fromEvent, merge, of } from \"rxjs\"\nimport {\n bufferCount,\n catchError,\n debounceTime,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n filter,\n map,\n sample,\n share,\n skip,\n switchMap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n Viewport,\n ViewportOffset,\n getElement,\n isAnchorLocation,\n isLocalLocation,\n replaceElement,\n setLocation,\n setLocationHash,\n setToggle,\n setViewportOffset\n} from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * History state\n */\ninterface State {\n url: URL /* State URL */\n offset?: ViewportOffset /* State viewport offset */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n document$: Subject /* Document subject */\n location$: Subject /* Location subject */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up instant loading\n *\n * When fetching, theoretically, we could use `responseType: \"document\"`, but\n * since all MkDocs links are relative, we need to make sure that the current\n * location matches the document we just loaded. Otherwise any relative links\n * in the document could use the old location.\n *\n * This is the reason why we need to synchronize history events and the process\n * of fetching the document for navigation changes (except `popstate` events):\n *\n * 1. Fetch document via `XMLHTTPRequest`\n * 2. Set new location via `history.pushState`\n * 3. Parse and emit fetched document\n *\n * For `popstate` events, we must not use `history.pushState`, or the forward\n * history will be irreversibly overwritten. In case the request fails, the\n * location change is dispatched regularly.\n *\n * @param options - Options\n */\nexport function setupInstantLoading(\n urls: string[], { document$, viewport$, location$ }: SetupOptions\n): void {\n\n /* Disable automatic scroll restoration */\n if (\"scrollRestoration\" in history)\n history.scrollRestoration = \"manual\"\n\n /* Hack: ensure that reloads restore viewport offset */\n fromEvent(window, \"beforeunload\")\n .subscribe(() => {\n history.scrollRestoration = \"auto\"\n })\n\n /* Hack: ensure absolute favicon link to omit 404s on document switch */\n const favicon = getElement(`link[rel=\"shortcut icon\"]`)\n if (typeof favicon !== \"undefined\")\n favicon.href = favicon.href // tslint:disable-line no-self-assignment\n\n /* Intercept link clicks and convert to state change */\n const state$ = fromEvent(document.body, \"click\")\n .pipe(\n filter(ev => !(ev.metaKey || ev.ctrlKey)),\n switchMap(ev => {\n if (ev.target instanceof HTMLElement) {\n const el = ev.target.closest(\"a\")\n if (\n el && !el.target &&\n isLocalLocation(el) &&\n urls.includes(el.href)\n ) {\n if (!isAnchorLocation(el))\n ev.preventDefault()\n return of(el)\n }\n }\n return NEVER\n }),\n map(el => ({ url: new URL(el.href) })),\n share()\n )\n\n /* Always close search on link click */\n state$.subscribe(() => {\n setToggle(\"search\", false)\n })\n\n /* Filter state changes to dispatch */\n const push$ = state$\n .pipe(\n filter(({ url }) => !isAnchorLocation(url)),\n share()\n )\n\n /* Intercept popstate events (history back and forward) */\n const pop$ = fromEvent(window, \"popstate\")\n .pipe(\n filter(ev => ev.state !== null),\n map(ev => ({\n url: new URL(location.href),\n offset: ev.state\n })),\n share()\n )\n\n /* Emit location change */\n merge(push$, pop$)\n .pipe(\n distinctUntilChanged((prev, next) => prev.url.href === next.url.href),\n map(({ url }) => url)\n )\n .subscribe(location$)\n\n /* Fetch document on location change */\n const ajax$ = location$\n .pipe(\n distinctUntilKeyChanged(\"pathname\"),\n skip(1),\n switchMap(url => from(fetch(url.href, {\n credentials: \"same-origin\"\n }).then(res => res.text()))\n .pipe(\n catchError(() => {\n setLocation(url)\n return NEVER\n })\n )\n ),\n share()\n )\n\n /* Set new location as soon as the document was fetched */\n push$\n .pipe(\n sample(ajax$)\n )\n .subscribe(({ url }) => {\n history.pushState({}, \"\", url.toString())\n })\n\n /* Parse and emit document */\n const dom = new DOMParser()\n ajax$\n .pipe(\n map(response => dom.parseFromString(response, \"text/html\"))\n )\n .subscribe(document$)\n\n /* Intercept instant loading */\n const instant$ = merge(push$, pop$)\n .pipe(\n sample(document$)\n )\n\n // TODO: this must be combined with search scroll restoration on mobile\n instant$.subscribe(({ url, offset }) => {\n if (url.hash && !offset) {\n setLocationHash(url.hash)\n } else {\n setViewportOffset(offset || { y: 0 })\n }\n })\n\n /* Replace document metadata */\n instant$\n .pipe(\n withLatestFrom(document$)\n )\n .subscribe(([, { title, head }]) => {\n document.title = title\n\n /* Replace meta tags */\n for (const selector of [\n `link[rel=\"canonical\"]`,\n `meta[name=\"author\"]`,\n `meta[name=\"description\"]`\n ]) {\n const next = getElement(selector, head)\n const prev = getElement(selector, document.head)\n if (\n typeof next !== \"undefined\" &&\n typeof prev !== \"undefined\"\n ) {\n replaceElement(prev, next)\n }\n }\n\n /* Finished, dispatch document switch event */\n document.dispatchEvent(new CustomEvent(\"DOMContentSwitch\"))\n })\n\n /* Debounce update of viewport offset */\n viewport$\n .pipe(\n debounceTime(250),\n distinctUntilKeyChanged(\"offset\")\n )\n .subscribe(({ offset }) => {\n history.replaceState(offset, \"\")\n })\n\n /* Set viewport offset from history */\n merge(state$, pop$)\n .pipe(\n bufferCount(2, 1),\n filter(([prev, next]) => {\n return prev.url.pathname === next.url.pathname\n && !isAnchorLocation(next.url)\n }),\n map(([, state]) => state)\n )\n .subscribe(({ offset }) => {\n setViewportOffset(offset || { y: 0 })\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport {\n filter,\n map,\n share,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n Key,\n getActiveElement,\n getElement,\n getElements,\n getToggle,\n isSusceptibleToKeyboard,\n setElementFocus,\n setElementSelection,\n setToggle,\n watchKeyboard\n} from \"browser\"\nimport { useComponent } from \"components\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Keyboard mode\n */\nexport type KeyboardMode =\n | \"global\" /* Global */\n | \"search\" /* Search is open */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Keyboard\n */\nexport interface Keyboard extends Key {\n mode: KeyboardMode /* Keyboard mode */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up keyboard\n *\n * This function will set up the keyboard handlers and ensure that keys are\n * correctly propagated. Currently there are two modes:\n *\n * - `global`: This mode is active when the search is closed. It is intended\n * to assign hotkeys to specific functions of the site. Currently the search,\n * previous and next page can be triggered.\n *\n * - `search`: This mode is active when the search is open. It maps certain\n * navigational keys to offer search results that can be entirely navigated\n * through keyboard input.\n *\n * The keyboard observable is returned and can be used to monitor the keyboard\n * in order toassign further hotkeys to custom functions.\n *\n * @return Keyboard observable\n */\nexport function setupKeyboard(): Observable {\n const keyboard$ = watchKeyboard()\n .pipe(\n map(key => ({\n mode: getToggle(\"search\") ? \"search\" : \"global\",\n ...key\n })),\n filter(({ mode }) => {\n if (mode === \"global\") {\n const active = getActiveElement()\n if (typeof active !== \"undefined\")\n return !isSusceptibleToKeyboard(active)\n }\n return true\n }),\n share()\n )\n\n /* Set up search keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"search\"),\n withLatestFrom(\n useComponent(\"search-query\"),\n useComponent(\"search-result\")\n )\n )\n .subscribe(([key, query, result]) => {\n const active = getActiveElement()\n switch (key.type) {\n\n /* Enter: prevent form submission */\n case \"Enter\":\n if (active === query)\n key.claim()\n break\n\n /* Escape or Tab: close search */\n case \"Escape\":\n case \"Tab\":\n setToggle(\"search\", false)\n setElementFocus(query, false)\n break\n\n /* Vertical arrows: select previous or next search result */\n case \"ArrowUp\":\n case \"ArrowDown\":\n if (typeof active === \"undefined\") {\n setElementFocus(query)\n } else {\n const els = [query, ...getElements(\n \":not(details) > [href], summary, details[open] [href]\",\n result\n )]\n const i = Math.max(0, (\n Math.max(0, els.indexOf(active)) + els.length + (\n key.type === \"ArrowUp\" ? -1 : +1\n )\n ) % els.length)\n setElementFocus(els[i])\n }\n\n /* Prevent scrolling of page */\n key.claim()\n break\n\n /* All other keys: hand to search query */\n default:\n if (query !== getActiveElement())\n setElementFocus(query)\n }\n })\n\n /* Set up global keyboard handlers */\n keyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\"),\n withLatestFrom(useComponent(\"search-query\"))\n )\n .subscribe(([key, query]) => {\n switch (key.type) {\n\n /* Open search and select query */\n case \"f\":\n case \"s\":\n case \"/\":\n setElementFocus(query)\n setElementSelection(query)\n key.claim()\n break\n\n /* Go to previous page */\n case \"p\":\n case \",\":\n const prev = getElement(\"[href][rel=prev]\")\n if (typeof prev !== \"undefined\")\n prev.click()\n break\n\n /* Go to next page */\n case \"n\":\n case \".\":\n const next = getElement(\"[href][rel=next]\")\n if (typeof next !== \"undefined\")\n next.click()\n break\n }\n })\n\n /* Return keyboard */\n return keyboard$\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { EMPTY, Observable, of } from \"rxjs\"\nimport {\n distinctUntilChanged,\n map,\n scan,\n shareReplay,\n switchMap\n} from \"rxjs/operators\"\n\nimport { getElement, replaceElement } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Component\n */\nexport type Component =\n | \"announce\" /* Announcement bar */\n | \"container\" /* Container */\n | \"header\" /* Header */\n | \"header-title\" /* Header title */\n | \"main\" /* Main area */\n | \"navigation\" /* Navigation */\n | \"search\" /* Search */\n | \"search-query\" /* Search input */\n | \"search-reset\" /* Search reset */\n | \"search-result\" /* Search results */\n | \"skip\" /* Skip link */\n | \"tabs\" /* Tabs */\n | \"toc\" /* Table of contents */\n\n/**\n * Component map\n */\nexport type ComponentMap = {\n [P in Component]?: HTMLElement\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Data\n * ------------------------------------------------------------------------- */\n\n/**\n * Component map observable\n */\nlet components$: Observable\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up bindings to components with given names\n *\n * This function will maintain bindings to the elements identified by the given\n * names in-between document switches and update the elements in-place.\n *\n * @param names - Component names\n * @param options - Options\n */\nexport function setupComponents(\n names: Component[], { document$ }: WatchOptions\n): void {\n components$ = document$\n .pipe(\n\n /* Build component map */\n map(document => names.reduce((components, name) => {\n const el = getElement(`[data-md-component=${name}]`, document)\n return {\n ...components,\n ...typeof el !== \"undefined\" ? { [name]: el } : {}\n }\n }, {})),\n\n /* Re-compute component map on document switch */\n scan((prev, next) => {\n for (const name of names) {\n switch (name) {\n\n /* Top-level components: update */\n case \"announce\":\n case \"header-title\":\n case \"container\":\n case \"skip\":\n if (name in prev && typeof prev[name] !== \"undefined\") {\n replaceElement(prev[name]!, next[name]!)\n prev[name] = next[name]\n }\n break\n\n /* All other components: rebind */\n default:\n if (typeof next[name] !== \"undefined\")\n prev[name] = getElement(`[data-md-component=${name}]`)\n else\n delete prev[name]\n }\n }\n return prev\n }),\n\n /* Convert to hot observable */\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n\n/**\n * Retrieve a component\n *\n * The returned observable will only re-emit if the element changed, i.e. if\n * it was replaced from a document which was switched to.\n *\n * @template T - Element type\n *\n * @param name - Component name\n *\n * @return Component observable\n */\nexport function useComponent(\n name: \"search-query\"\n): Observable\nexport function useComponent(\n name: Component\n): Observable\nexport function useComponent(\n name: Component\n): Observable {\n return components$\n .pipe(\n switchMap(components => (\n typeof components[name] !== \"undefined\"\n ? of(components[name] as T)\n : EMPTY\n )),\n distinctUntilChanged()\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set anchor blur\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is blurred\n */\nexport function setAnchorBlur(\n el: HTMLElement, value: boolean\n): void {\n el.setAttribute(\"data-md-state\", value ? \"blur\" : \"\")\n}\n\n/**\n * Reset anchor blur\n *\n * @param el - Anchor element\n */\nexport function resetAnchorBlur(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set anchor active\n *\n * @param el - Anchor element\n * @param value - Whether the anchor is active\n */\nexport function setAnchorActive(\n el: HTMLElement, value: boolean\n): void {\n el.classList.toggle(\"md-nav__link--active\", value)\n}\n\n/**\n * Reset anchor active\n *\n * @param el - Anchor element\n */\nexport function resetAnchorActive(\n el: HTMLElement\n): void {\n el.classList.remove(\"md-nav__link--active\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./sidebar\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h, translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a 'copy-to-clipboard' button\n *\n * @param id - Unique identifier\n *\n * @return Element\n */\nexport function renderClipboardButton(id: string) {\n return (\n code`}\n >\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n SearchDocument,\n SearchMetadata,\n SearchResult\n} from \"integrations/search\"\nimport { h, translate, truncate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Helper function\n * ------------------------------------------------------------------------- */\n\n/**\n * Render an article document\n *\n * @param document - Article document\n * @param teaser - Whether to render the teaser\n *\n * @return Element\n */\nfunction renderArticleDocument(\n { location, title, text, terms, score }: SearchDocument & SearchMetadata,\n teaser: boolean\n) {\n const miss = Object.keys(terms)\n // tslint:disable-next-line: array-type\n .reduce>((list, key) => [\n ...list, ...!terms[key] ? [{key}, \" \"] : []\n ], [])\n return (\n \n \n
    \n

    {title}

    \n {teaser && text.length > 0 &&\n

    {truncate(text, 320)}

    \n }\n {teaser && miss.length > 0 &&\n

    \n {translate(\"search.result.term.missing\")}: {...miss.slice(0, -1)}\n

    \n }\n \n     \n )\n}\n\n/**\n * Render a search document\n *\n * @param section - Search document\n *\n * @return Element\n */\nfunction renderSection(\n { location, title, text, terms, score }: SearchDocument & SearchMetadata\n) {\n const miss = Object.keys(terms)\n // tslint:disable-next-line: array-type\n .reduce>((list, key) => [\n ...list, ...!terms[key] ? [{key}, \" \"] : []\n ], [])\n return (\n \n
    \n

    {title}

    \n {text.length > 0 &&\n

    {truncate(text, 320)}

    \n }\n {miss.length > 0 &&\n

    \n {translate(\"search.result.term.missing\")}: {...miss.slice(0, -1)}\n

    \n }\n
    \n     \n )\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a search result\n *\n * @param result - Search result\n *\n * @return Element\n */\nexport function renderSearchResult(\n result: SearchResult, threshold: number = Infinity\n) {\n const docs = [...result]\n // console.log(result)\n\n /* Find and extract parent article */\n const parent = docs.findIndex(doc => !doc.location.includes(\"#\"))\n const [article] = docs.splice(parent, 1)\n\n /* Determine last index above threshold */\n let index = docs.findIndex(doc => doc.score < threshold)\n if (index === -1)\n index = docs.length\n\n /* Partition sections */\n const best = docs.slice(0, index)\n const more = docs.slice(index)\n\n /* Render children */\n const children = [\n renderArticleDocument(article, !parent && index === 0),\n ...best.map(renderSection),\n ...more.length ? [\n
    \n \n {more.length > 0 && more.length === 1\n ? translate(\"search.result.more.one\")\n : translate(\"search.result.more.other\", more.length)\n }\n \n {...more.map(renderSection)}\n
    \n ] : []\n ]\n\n /* Render search result */\n return (\n
  • \n {children}\n
    • \n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SourceFacts } from \"patches/source\"\nimport { h } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render source facts\n *\n * @param facts - Source facts\n *\n * @return Element\n */\nexport function renderSource(\n facts: SourceFacts\n) {\n return (\n
      \n {facts.map(fact => (\n
    • {fact}
      • \n ))}\n
    \n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { h } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Render a table inside a wrapper to improve scrolling on mobile\n *\n * @param table - Table element\n *\n * @return Element\n */\nexport function renderTable(\n table: HTMLTableElement\n) {\n return (\n
    \n
    \n {table}\n
    \n
    \n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar offset\n *\n * @param el - Sidebar element\n * @param value - Sidebar offset\n */\nexport function setSidebarOffset(\n el: HTMLElement, value: number\n): void {\n el.style.top = `${value}px`\n}\n\n/**\n * Reset sidebar offset\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarOffset(\n el: HTMLElement\n): void {\n el.style.top = \"\"\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Set sidebar height\n *\n * @param el - Sidebar element\n * @param value - Sidebar height\n */\nexport function setSidebarHeight(\n el: HTMLElement, value: number\n): void {\n el.style.height = `${value}px`\n}\n\n/**\n * Reset sidebar height\n *\n * @param el - Sidebar element\n */\nexport function resetSidebarHeight(\n el: HTMLElement\n): void {\n el.style.height = \"\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./react\"\nexport * from \"./set\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search transformation function\n *\n * @param value - Query value\n *\n * @return Transformed query value\n */\nexport type SearchTransformFn = (value: string) => string\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Default transformation function\n *\n * 1. Search for terms in quotation marks and prepend a `+` modifier to denote\n * that the resulting document must contain all terms, converting the query\n * to an `AND` query (as opposed to the default `OR` behavior). While users\n * may expect terms enclosed in quotation marks to map to span queries, i.e.\n * for which order is important, `lunr` doesn't support them, so the best\n * we can do is to convert the terms to an `AND` query.\n *\n * 2. Replace control characters which are not located at the beginning of the\n * query or preceded by white space, or are not followed by a non-whitespace\n * character or are at the end of the query string. Furthermore, filter\n * unmatched quotation marks.\n *\n * 3. Trim excess whitespace from left and right.\n *\n * @param query - Query value\n *\n * @return Transformed query value\n */\nexport function defaultTransform(query: string): string {\n return query\n .split(/\"([^\"]+)\"/g) /* => 1 */\n .map((terms, index) => index & 1\n ? terms.replace(/^\\b|^(?![^\\x00-\\x7F]|$)|\\s+/g, \" +\")\n : terms\n )\n .join(\"\")\n .replace(/\"|(?:^|\\s+)[*+\\-:^~]+(?=\\s+|$)/g, \"\") /* => 2 */\n .trim() /* => 3 */\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n SearchDocument,\n SearchDocumentMap,\n setupSearchDocumentMap\n} from \"../document\"\nimport {\n SearchHighlightFactoryFn,\n setupSearchHighlighter\n} from \"../highlighter\"\nimport {\n SearchQueryTerms,\n getSearchQueryTerms,\n parseSearchQuery\n} from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index configuration\n */\nexport interface SearchIndexConfig {\n lang: string[] /* Search languages */\n separator: string /* Search separator */\n}\n\n/**\n * Search index document\n */\nexport interface SearchIndexDocument {\n location: string /* Document location */\n title: string /* Document title */\n text: string /* Document text */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index pipeline function\n */\nexport type SearchIndexPipelineFn =\n | \"trimmer\" /* Trimmer */\n | \"stopWordFilter\" /* Stop word filter */\n | \"stemmer\" /* Stemmer */\n\n/**\n * Search index pipeline\n */\nexport type SearchIndexPipeline = SearchIndexPipelineFn[]\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * This interfaces describes the format of the `search_index.json` file which\n * is automatically built by the MkDocs search plugin.\n */\nexport interface SearchIndex {\n config: SearchIndexConfig /* Search index configuration */\n docs: SearchIndexDocument[] /* Search index documents */\n index?: object /* Prebuilt index */\n pipeline?: SearchIndexPipeline /* Search index pipeline */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search metadata\n */\nexport interface SearchMetadata {\n score: number /* Score (relevance) */\n terms: SearchQueryTerms /* Search query terms */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search result\n */\nexport type SearchResult = Array<\n SearchDocument & SearchMetadata\n> // tslint:disable-line\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Compute the difference of two lists of strings\n *\n * @param a - 1st list of strings\n * @param b - 2nd list of strings\n *\n * @return Difference\n */\nfunction difference(a: string[], b: string[]): string[] {\n const [x, y] = [new Set(a), new Set(b)]\n return [\n ...new Set([...x].filter(value => !y.has(value)))\n ]\n}\n\n/* ----------------------------------------------------------------------------\n * Class\n * ------------------------------------------------------------------------- */\n\n/**\n * Search index\n *\n * Note that `lunr` is injected via Webpack, as it will otherwise also be\n * bundled in the application bundle.\n */\nexport class Search {\n\n /**\n * Search document mapping\n *\n * A mapping of URLs (including hash fragments) to the actual articles and\n * sections of the documentation. The search document mapping must be created\n * regardless of whether the index was prebuilt or not, as `lunr` itself will\n * only store the actual index.\n */\n protected documents: SearchDocumentMap\n\n /**\n * Search highlight factory function\n */\n protected highlight: SearchHighlightFactoryFn\n\n /**\n * The underlying `lunr` search index\n */\n protected index: lunr.Index\n\n /**\n * Create the search integration\n *\n * @param data - Search index\n */\n public constructor({ config, docs, pipeline, index }: SearchIndex) {\n this.documents = setupSearchDocumentMap(docs)\n this.highlight = setupSearchHighlighter(config)\n\n /* Set separator for tokenizer */\n lunr.tokenizer.separator = new RegExp(config.separator)\n\n /* If no index was given, create it */\n if (typeof index === \"undefined\") {\n this.index = lunr(function() {\n\n /* Set up multi-language support */\n if (config.lang.length === 1 && config.lang[0] !== \"en\") {\n this.use((lunr as any)[config.lang[0]])\n } else if (config.lang.length > 1) {\n this.use((lunr as any).multiLanguage(...config.lang))\n }\n\n /* Compute functions to be removed from the pipeline */\n const fns = difference([\n \"trimmer\", \"stopWordFilter\", \"stemmer\"\n ], pipeline!)\n\n /* Remove functions from the pipeline for registered languages */\n for (const lang of config.lang.map(language => (\n language === \"en\" ? lunr : (lunr as any)[language]\n ))) {\n for (const fn of fns) {\n this.pipeline.remove(lang[fn])\n this.searchPipeline.remove(lang[fn])\n }\n }\n\n /* Set up fields and reference */\n this.field(\"title\", { boost: 1000 })\n this.field(\"text\")\n this.ref(\"location\")\n\n /* Index documents */\n for (const doc of docs)\n this.add(doc)\n })\n\n /* Handle prebuilt index */\n } else {\n this.index = lunr.Index.load(index)\n }\n }\n\n /**\n * Search for matching documents\n *\n * The search index which MkDocs provides is divided up into articles, which\n * contain the whole content of the individual pages, and sections, which only\n * contain the contents of the subsections obtained by breaking the individual\n * pages up at `h1` ... `h6`. As there may be many sections on different pages\n * with identical titles (for example within this very project, e.g. \"Usage\"\n * or \"Installation\"), they need to be put into the context of the containing\n * page. For this reason, section results are grouped within their respective\n * articles which are the top-level results that are returned.\n *\n * @param query - Query value\n *\n * @return Search results\n */\n public search(query: string): SearchResult[] {\n if (query) {\n try {\n const highlight = this.highlight(query)\n\n /* Parse query to extract clauses for analysis */\n const clauses = parseSearchQuery(query)\n .filter(clause => (\n clause.presence !== lunr.Query.presence.PROHIBITED\n ))\n\n /* Perform search and post-process results */\n const groups = this.index.search(`${query}*`)\n\n /* Apply post-query boosts based on title and search query terms */\n .reduce((results, { ref, score, matchData }) => {\n const document = this.documents.get(ref)\n if (typeof document !== \"undefined\") {\n const { location, title, text, parent } = document\n\n /* Compute and analyze search query terms */\n const terms = getSearchQueryTerms(\n clauses,\n Object.keys(matchData.metadata)\n )\n\n /* Highlight title and text and apply post-query boosts */\n const boost = +!parent + +Object.values(terms).every(t => t)\n results.push({\n location,\n title: highlight(title),\n text: highlight(text),\n score: score * (1 + boost),\n terms\n })\n }\n return results\n }, [])\n\n /* Sort search results again after applying boosts */\n .sort((a, b) => b.score - a.score)\n\n /* Group search results by page */\n .reduce((results, result) => {\n const document = this.documents.get(result.location)\n if (typeof document !== \"undefined\") {\n const ref = \"parent\" in document\n ? document.parent!.location\n : document.location\n results.set(ref, [...results.get(ref) || [], result])\n }\n return results\n }, new Map())\n\n /* Expand grouped search results */\n return [...groups.values()]\n\n /* Log errors to console (for now) */\n } catch {\n // tslint:disable-next-line no-console\n console.warn(`Invalid query: ${query} – see https://bit.ly/2s3ChXG`)\n }\n }\n\n /* Return nothing in case of error or empty query */\n return []\n }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// @ts-ignore\nimport * as escapeHTML from \"escape-html\"\n\nimport { SearchIndexDocument } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search document\n */\nexport interface SearchDocument extends SearchIndexDocument {\n parent?: SearchIndexDocument /* Parent article */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search document mapping\n */\nexport type SearchDocumentMap = Map\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search document mapping\n *\n * @param docs - Search index documents\n *\n * @return Search document map\n */\nexport function setupSearchDocumentMap(\n docs: SearchIndexDocument[]\n): SearchDocumentMap {\n const documents = new Map()\n const parents = new Set()\n for (const doc of docs) {\n const [path, hash] = doc.location.split(\"#\")\n\n /* Extract location and title */\n const location = doc.location\n const title = doc.title\n\n /* Escape and cleanup text */\n const text = escapeHTML(doc.text)\n .replace(/\\s+(?=[,.:;!?])/g, \"\")\n .replace(/\\s+/g, \" \")\n\n /* Handle section */\n if (hash) {\n const parent = documents.get(path)!\n\n /* Ignore first section, override article */\n if (!parents.has(parent)) {\n parent.title = doc.title\n parent.text = text\n\n /* Remember that we processed the article */\n parents.add(parent)\n\n /* Add subsequent section */\n } else {\n documents.set(location, {\n location,\n title,\n text,\n parent\n })\n }\n\n /* Add article */\n } else {\n documents.set(location, {\n location,\n title,\n text\n })\n }\n }\n return documents\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndexConfig } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search highlight function\n *\n * @param value - Value\n *\n * @return Highlighted value\n */\nexport type SearchHighlightFn = (value: string) => string\n\n/**\n * Search highlight factory function\n *\n * @param query - Query value\n *\n * @return Search highlight function\n */\nexport type SearchHighlightFactoryFn = (query: string) => SearchHighlightFn\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Create a search highlighter\n *\n * @param config - Search index configuration\n *\n * @return Search highlight factory function\n */\nexport function setupSearchHighlighter(\n config: SearchIndexConfig\n): SearchHighlightFactoryFn {\n const separator = new RegExp(config.separator, \"img\")\n const highlight = (_: unknown, data: string, term: string) => {\n return `${data}${term}`\n }\n\n /* Return factory function */\n return (query: string) => {\n query = query\n .replace(/[\\s*+\\-:~^]+/g, \" \")\n .trim()\n\n /* Create search term match expression */\n const match = new RegExp(`(^|${config.separator})(${\n query\n .replace(/[|\\\\{}()[\\]^$+*?.-]/g, \"\\\\$&\")\n .replace(separator, \"|\")\n })`, \"img\")\n\n /* Highlight string value */\n return value => value\n .replace(match, highlight)\n .replace(/<\\/mark>(\\s+)]*>/img, \"\\$1\")\n }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query clause\n */\nexport interface SearchQueryClause {\n presence: lunr.Query.presence /* Clause presence */\n term: string /* Clause term */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search query terms\n */\nexport type SearchQueryTerms = Record\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Parse a search query for analysis\n *\n * @param value - Query value\n *\n * @return Search query clauses\n */\nexport function parseSearchQuery(\n value: string\n): SearchQueryClause[] {\n const query = new (lunr as any).Query([\"title\", \"text\"])\n const parser = new (lunr as any).QueryParser(value, query)\n\n /* Parse and return query clauses */\n parser.parse()\n return query.clauses\n}\n\n/**\n * Analyze the search query clauses in regard to the search terms found\n *\n * @param query - Search query clauses\n * @param terms - Search terms\n *\n * @return Search query terms\n */\nexport function getSearchQueryTerms(\n query: SearchQueryClause[], terms: string[]\n): SearchQueryTerms {\n const clauses = new Set(query)\n\n /* Match query clauses against terms */\n const result: SearchQueryTerms = {}\n for (let t = 0; t < terms.length; t++)\n for (const clause of clauses)\n if (terms[t].startsWith(clause.term)) {\n result[clause.term] = true\n clauses.delete(clause)\n }\n\n /* Annotate unmatched query clauses */\n for (const clause of clauses)\n result[clause.term] = false\n\n /* Return query terms */\n return result\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { SearchIndex, SearchResult } from \"../../_\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search message type\n */\nexport const enum SearchMessageType {\n SETUP, /* Search index setup */\n READY, /* Search index ready */\n QUERY, /* Search query */\n RESULT /* Search results */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message containing the data necessary to setup the search index\n */\nexport interface SearchSetupMessage {\n type: SearchMessageType.SETUP /* Message type */\n data: SearchIndex /* Message data */\n}\n\n/**\n * A message indicating the search index is ready\n */\nexport interface SearchReadyMessage {\n type: SearchMessageType.READY /* Message type */\n}\n\n/**\n * A message containing a search query\n */\nexport interface SearchQueryMessage {\n type: SearchMessageType.QUERY /* Message type */\n data: string /* Message data */\n}\n\n/**\n * A message containing results for a search query\n */\nexport interface SearchResultMessage {\n type: SearchMessageType.RESULT /* Message type */\n data: SearchResult[] /* Message data */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * A message exchanged with the search worker\n */\nexport type SearchMessage =\n | SearchSetupMessage\n | SearchReadyMessage\n | SearchQueryMessage\n | SearchResultMessage\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Type guard for search setup messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchSetupMessage(\n message: SearchMessage\n): message is SearchSetupMessage {\n return message.type === SearchMessageType.SETUP\n}\n\n/**\n * Type guard for search ready messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchReadyMessage(\n message: SearchMessage\n): message is SearchReadyMessage {\n return message.type === SearchMessageType.READY\n}\n\n/**\n * Type guard for search query messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchQueryMessage(\n message: SearchMessage\n): message is SearchQueryMessage {\n return message.type === SearchMessageType.QUERY\n}\n\n/**\n * Type guard for search result messages\n *\n * @param message - Search worker message\n *\n * @return Test result\n */\nexport function isSearchResultMessage(\n message: SearchMessage\n): message is SearchResultMessage {\n return message.type === SearchMessageType.RESULT\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, Subject, asyncScheduler } from \"rxjs\"\nimport {\n map,\n observeOn,\n share,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, watchWorker } from \"browser\"\nimport { translate } from \"utilities\"\n\nimport { SearchIndex, SearchIndexPipeline } from \"../../_\"\nimport {\n SearchMessage,\n SearchMessageType,\n SearchSetupMessage,\n isSearchResultMessage\n} from \"../message\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Setup options\n */\ninterface SetupOptions {\n index$: Observable /* Search index observable */\n base$: Observable /* Location base observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search index\n *\n * @param data - Search index\n *\n * @return Search index\n */\nfunction setupSearchIndex(\n { config, docs, index }: SearchIndex\n): SearchIndex {\n\n /* Override default language with value from translation */\n if (config.lang.length === 1 && config.lang[0] === \"en\")\n config.lang = [translate(\"search.config.lang\")]\n\n /* Override default separator with value from translation */\n if (config.separator === \"[\\\\s\\\\-]+\")\n config.separator = translate(\"search.config.separator\")\n\n /* Set pipeline from translation */\n const pipeline = translate(\"search.config.pipeline\")\n .split(/\\s*,\\s*/)\n .filter(Boolean) as SearchIndexPipeline\n\n /* Return search index after defaulting */\n return { config, docs, index, pipeline }\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set up search web worker\n *\n * This function will create a web worker to set up and query the search index\n * which is done using `lunr`. The index must be passed as an observable to\n * enable hacks like _localsearch_ via search index embedding as JSON.\n *\n * @param url - Worker URL\n * @param options - Options\n *\n * @return Worker handler\n */\nexport function setupSearchWorker(\n url: string, { index$, base$ }: SetupOptions\n): WorkerHandler {\n const worker = new Worker(url)\n\n /* Create communication channels and resolve relative links */\n const tx$ = new Subject()\n const rx$ = watchWorker(worker, { tx$ })\n .pipe(\n withLatestFrom(base$),\n map(([message, base]) => {\n if (isSearchResultMessage(message)) {\n for (const result of message.data)\n for (const document of result)\n document.location = `${base}/${document.location}`\n }\n return message\n }),\n share()\n )\n\n /* Set up search index */\n index$\n .pipe(\n map(data => ({\n type: SearchMessageType.SETUP,\n data: setupSearchIndex(data)\n })),\n observeOn(asyncScheduler)\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Return worker handler */\n return { tx$, rx$ }\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, of, pipe } from \"rxjs\"\nimport { map, switchMap } from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { Header } from \"../header\"\nimport { Main } from \"../main\"\nimport {\n Sidebar,\n applySidebar,\n watchSidebar\n} from \"../shared\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Navigation for [screen -]\n */\ninterface NavigationBelowScreen {} // tslint:disable-line\n\n/**\n * Navigation for [screen +]\n */\ninterface NavigationAboveScreen {\n sidebar: Sidebar /* Sidebar */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Navigation\n */\nexport type Navigation =\n | NavigationBelowScreen\n | NavigationAboveScreen\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n viewport$: Observable /* Viewport observable */\n screen$: Observable /* Screen media observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount navigation from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountNavigation(\n { header$, main$, viewport$, screen$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => screen$\n .pipe(\n switchMap(screen => {\n\n /* [screen +]: Mount navigation in sidebar */\n if (screen) {\n return watchSidebar(el, { main$, viewport$ })\n .pipe(\n applySidebar(el, { header$ }),\n map(sidebar => ({ sidebar }))\n )\n\n /* [screen -]: Mount navigation in drawer */\n } else {\n return of({})\n }\n })\n )\n )\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./react\"\nexport * from \"./set\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n combineLatest,\n pipe\n} from \"rxjs\"\nimport {\n distinctUntilChanged,\n finalize,\n map,\n observeOn,\n tap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { Header } from \"../../../header\"\nimport { Main } from \"../../../main\"\nimport { Sidebar } from \"../_\"\nimport {\n resetSidebarHeight,\n resetSidebarOffset,\n setSidebarHeight,\n setSidebarOffset\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n main$: Observable
    /* Main area observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/**\n * Apply options\n */\ninterface ApplyOptions {\n header$: Observable
    /* Header observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch sidebar\n *\n * This function returns an observable that computes the visual parameters of\n * the sidebar which depends on the vertical viewport offset, as well as the\n * height of the main area. When the page is scrolled beyond the header, the\n * sidebar is locked and fills the remaining space.\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @return Sidebar observable\n */\nexport function watchSidebar(\n el: HTMLElement, { main$, viewport$ }: WatchOptions\n): Observable {\n const adjust = el.parentElement!.offsetTop\n - el.parentElement!.parentElement!.offsetTop\n\n /* Compute the sidebar's available height and if it should be locked */\n return combineLatest([main$, viewport$])\n .pipe(\n map(([{ offset, height }, { offset: { y } }]) => {\n height = height\n + Math.min(adjust, Math.max(0, y - offset))\n - adjust\n return {\n height,\n lock: y >= offset + adjust\n }\n }),\n distinctUntilChanged((a, b) => {\n return a.height === b.height\n && a.lock === b.lock\n })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply sidebar\n *\n * @param el - Sidebar element\n * @param options - Options\n *\n * @return Operator function\n */\nexport function applySidebar(\n el: HTMLElement, { header$ }: ApplyOptions\n): MonoTypeOperatorFunction {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n withLatestFrom(header$),\n tap(([{ height, lock }, { height: offset }]) => {\n setSidebarHeight(el, height)\n\n /* Set offset in locked state depending on header height */\n if (lock)\n setSidebarOffset(el, offset)\n else\n resetSidebarOffset(el)\n }),\n\n /* Re-map to sidebar */\n map(([sidebar]) => sidebar),\n\n /* Reset on complete or error */\n finalize(() => {\n resetSidebarOffset(el)\n resetSidebarHeight(el)\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nexport * from \"./_\"\nexport * from \"./anchor\"\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n OperatorFunction,\n combineLatest,\n of,\n pipe\n} from \"rxjs\"\nimport { map, switchMap } from \"rxjs/operators\"\n\nimport { Viewport, getElements } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../../main\"\nimport {\n Sidebar,\n applySidebar,\n watchSidebar\n} from \"../../shared\"\nimport {\n AnchorList,\n applyAnchorList,\n watchAnchorList\n} from \"../anchor\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Table of contents for [tablet -]\n */\ninterface TableOfContentsBelowTablet {} // tslint:disable-line\n\n/**\n * Table of contents for [tablet +]\n */\ninterface TableOfContentsAboveTablet {\n sidebar: Sidebar /* Sidebar */\n anchors: AnchorList /* Anchor list */\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Table of contents\n */\nexport type TableOfContents =\n | TableOfContentsBelowTablet\n | TableOfContentsAboveTablet\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n header$: Observable
    /* Header observable */\n main$: Observable
    /* Main area observable */\n viewport$: Observable /* Viewport observable */\n tablet$: Observable /* Tablet media observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount table of contents from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountTableOfContents(\n { header$, main$, viewport$, tablet$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => tablet$\n .pipe(\n switchMap(tablet => {\n\n /* [tablet +]: Mount table of contents in sidebar */\n if (tablet) {\n const els = getElements(\".md-nav__link\", el)\n\n /* Watch and apply sidebar */\n const sidebar$ = watchSidebar(el, { main$, viewport$ })\n .pipe(\n applySidebar(el, { header$ })\n )\n\n /* Watch and apply anchor list (scroll spy) */\n const anchors$ = watchAnchorList(els, { header$, viewport$ })\n .pipe(\n applyAnchorList(els)\n )\n\n /* Combine into single hot observable */\n return combineLatest([sidebar$, anchors$])\n .pipe(\n map(([sidebar, anchors]) => ({ sidebar, anchors }))\n )\n\n /* [tablet -]: Unmount table of contents */\n } else {\n return of({})\n }\n })\n )\n )\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n combineLatest,\n pipe\n} from \"rxjs\"\nimport {\n bufferCount,\n distinctUntilChanged,\n distinctUntilKeyChanged,\n finalize,\n map,\n observeOn,\n scan,\n startWith,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { Viewport, getElement, watchElementSize } from \"browser\"\n\nimport { Header } from \"../../../header\"\nimport { AnchorList } from \"../_\"\nimport {\n resetAnchorActive,\n resetAnchorBlur,\n setAnchorActive,\n setAnchorBlur\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch anchor list\n *\n * This is effectively a scroll-spy implementation which will account for the\n * fixed header and automatically re-calculate anchor offsets when the viewport\n * is resized. The returned observable will only emit if the anchor list needs\n * to be repainted.\n *\n * This implementation tracks an anchor element's entire path starting from its\n * level up to the top-most anchor element, e.g. `[h3, h2, h1]`. Although the\n * Material theme currently doesn't make use of this information, it enables\n * the styling of the entire hierarchy through customization.\n *\n * Note that the current anchor is the last item of the `prev` anchor list.\n *\n * @param els - Anchor elements\n * @param options - Options\n *\n * @return Anchor list observable\n */\nexport function watchAnchorList(\n els: HTMLAnchorElement[], { header$, viewport$ }: WatchOptions\n): Observable {\n const table = new Map()\n for (const el of els) {\n const id = decodeURIComponent(el.hash.substring(1))\n const target = getElement(`[id=\"${id}\"]`)\n if (typeof target !== \"undefined\")\n table.set(el, target)\n }\n\n /* Compute necessary adjustment for header */\n const adjust$ = header$\n .pipe(\n map(header => 18 + header.height)\n )\n\n /* Compute partition of previous and next anchors */\n const partition$ = watchElementSize(document.body)\n .pipe(\n distinctUntilKeyChanged(\"height\"),\n\n /* Build index to map anchor paths to vertical offsets */\n map(() => {\n let path: HTMLAnchorElement[] = []\n return [...table].reduce((index, [anchor, target]) => {\n while (path.length) {\n const last = table.get(path[path.length - 1])!\n if (last.tagName >= target.tagName) {\n path.pop()\n } else {\n break\n }\n }\n\n /* If the current anchor is hidden, continue with its parent */\n let offset = target.offsetTop\n while (!offset && target.parentElement) {\n target = target.parentElement\n offset = target.offsetTop\n }\n\n /* Map reversed anchor path to vertical offset */\n return index.set(\n [...path = [...path, anchor]].reverse(),\n offset\n )\n }, new Map())\n }),\n\n /* Re-compute partition when viewport offset changes */\n switchMap(index => combineLatest([adjust$, viewport$])\n .pipe(\n scan(([prev, next], [adjust, { offset: { y } }]) => {\n\n /* Look forward */\n while (next.length) {\n const [, offset] = next[0]\n if (offset - adjust < y) {\n prev = [...prev, next.shift()!]\n } else {\n break\n }\n }\n\n /* Look backward */\n while (prev.length) {\n const [, offset] = prev[prev.length - 1]\n if (offset - adjust >= y) {\n next = [prev.pop()!, ...next]\n } else {\n break\n }\n }\n\n /* Return partition */\n return [prev, next]\n }, [[], [...index]]),\n distinctUntilChanged((a, b) => {\n return a[0] === b[0]\n && a[1] === b[1]\n })\n )\n )\n )\n\n /* Compute and return anchor list migrations */\n return partition$\n .pipe(\n map(([prev, next]) => ({\n prev: prev.map(([path]) => path),\n next: next.map(([path]) => path)\n })),\n\n /* Extract anchor list migrations */\n startWith({ prev: [], next: [] }),\n bufferCount(2, 1),\n map(([a, b]) => {\n\n /* Moving down */\n if (a.prev.length < b.prev.length) {\n return {\n prev: b.prev.slice(Math.max(0, a.prev.length - 1), b.prev.length),\n next: []\n }\n\n /* Moving up */\n } else {\n return {\n prev: b.prev.slice(-1),\n next: b.next.slice(0, b.next.length - a.next.length)\n }\n }\n })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply anchor list\n *\n * @param els - Anchor elements\n *\n * @return Operator function\n */\nexport function applyAnchorList(\n els: HTMLAnchorElement[]\n): MonoTypeOperatorFunction {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n tap(({ prev, next }) => {\n\n /* Look forward */\n for (const [el] of next) {\n resetAnchorActive(el)\n resetAnchorBlur(el)\n }\n\n /* Look backward */\n prev.forEach(([el], index) => {\n setAnchorActive(el, index === prev.length - 1)\n setAnchorBlur(el, true)\n })\n }),\n\n /* Reset on complete or error */\n finalize(() => {\n for (const el of els) {\n resetAnchorActive(el)\n resetAnchorBlur(el)\n }\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, combineLatest, pipe } from \"rxjs\"\nimport {\n filter,\n map,\n mapTo,\n sample,\n startWith,\n switchMap,\n take\n} from \"rxjs/operators\"\n\nimport { WorkerHandler } from \"browser\"\nimport {\n SearchMessage,\n SearchResult,\n isSearchQueryMessage,\n isSearchReadyMessage\n} from \"integrations/search\"\n\nimport { SearchQuery } from \"../query\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search status\n */\nexport type SearchStatus =\n | \"waiting\" /* Search waiting for initialization */\n | \"ready\" /* Search ready */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Search\n */\nexport interface Search {\n status: SearchStatus /* Search status */\n query: SearchQuery /* Search query */\n result: SearchResult[] /* Search result list */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n query$: Observable /* Search query observable */\n reset$: Observable /* Search reset observable */\n result$: Observable /* Search result observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearch(\n { rx$, tx$ }: WorkerHandler,\n { query$, reset$, result$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(() => {\n\n /* Compute search status */\n const status$ = rx$\n .pipe(\n filter(isSearchReadyMessage),\n mapTo(\"ready\"),\n startWith(\"waiting\")\n ) as Observable\n\n /* Re-emit the latest query when search is ready */\n tx$\n .pipe(\n filter(isSearchQueryMessage),\n sample(status$),\n take(1)\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Combine into single observable */\n return combineLatest([status$, query$, result$, reset$])\n .pipe(\n map(([status, query, result]) => ({\n status,\n query,\n result\n }))\n )\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { OperatorFunction, pipe } from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n map,\n switchMap\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, setToggle } from \"browser\"\nimport {\n SearchMessage,\n SearchMessageType,\n SearchQueryMessage,\n SearchTransformFn\n} from \"integrations\"\n\nimport { watchSearchQuery } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Search query\n */\nexport interface SearchQuery {\n value: string /* Query value */\n focus: boolean /* Query focus */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n transform?: SearchTransformFn /* Transformation function */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search query from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearchQuery(\n { tx$ }: WorkerHandler, options: MountOptions = {}\n): OperatorFunction {\n return pipe(\n switchMap(el => {\n const query$ = watchSearchQuery(el, options)\n\n /* Subscribe worker to search query */\n query$\n .pipe(\n distinctUntilKeyChanged(\"value\"),\n map(({ value }): SearchQueryMessage => ({\n type: SearchMessageType.QUERY,\n data: value\n }))\n )\n .subscribe(tx$.next.bind(tx$))\n\n /* Toggle search on focus */\n query$\n .pipe(\n distinctUntilKeyChanged(\"focus\")\n )\n .subscribe(({ focus }) => {\n if (focus)\n setToggle(\"search\", focus)\n })\n\n /* Return search query */\n return query$\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest, fromEvent, merge } from \"rxjs\"\nimport {\n delay,\n distinctUntilChanged,\n map,\n startWith\n} from \"rxjs/operators\"\n\nimport { watchElementFocus } from \"browser\"\nimport { SearchTransformFn, defaultTransform } from \"integrations\"\n\nimport { SearchQuery } from \"../_\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n transform?: SearchTransformFn /* Transformation function */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search query\n *\n * Note that the focus event which triggers re-reading the current query value\n * is delayed by `1ms` so the input's empty state is allowed to propagate.\n *\n * @param el - Search query element\n * @param options - Options\n *\n * @return Search query observable\n */\nexport function watchSearchQuery(\n el: HTMLInputElement, { transform }: WatchOptions = {}\n): Observable {\n const fn = transform || defaultTransform\n\n /* Intercept keyboard events */\n const value$ = merge(\n fromEvent(el, \"keyup\"),\n fromEvent(el, \"focus\").pipe(delay(1))\n )\n .pipe(\n map(() => fn(el.value)),\n startWith(fn(el.value)),\n distinctUntilChanged()\n )\n\n /* Intercept focus events */\n const focus$ = watchElementFocus(el)\n\n /* Combine into single observable */\n return combineLatest([value$, focus$])\n .pipe(\n map(([value, focus]) => ({ value, focus }))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { OperatorFunction, pipe } from \"rxjs\"\nimport {\n mapTo,\n startWith,\n switchMap,\n switchMapTo,\n tap\n} from \"rxjs/operators\"\n\nimport { setElementFocus } from \"browser\"\n\nimport { useComponent } from \"../../../_\"\nimport { watchSearchReset } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search reset from source observable\n *\n * @return Operator function\n */\nexport function mountSearchReset(): OperatorFunction {\n return pipe(\n switchMap(el => watchSearchReset(el)\n .pipe(\n switchMapTo(useComponent(\"search-query\")),\n tap(setElementFocus),\n mapTo(undefined)\n )\n ),\n startWith(undefined)\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent } from \"rxjs\"\nimport { mapTo } from \"rxjs/operators\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch search reset\n *\n * @param el - Search reset element\n *\n * @return Search reset observable\n */\nexport function watchSearchReset(\n el: HTMLElement\n): Observable {\n return fromEvent(el, \"click\")\n .pipe(\n mapTo(undefined)\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { translate } from \"utilities\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set number of search results\n *\n * @param el - Search result metadata element\n * @param value - Number of results\n */\nexport function setSearchResultMeta(\n el: HTMLElement, value: number\n): void {\n switch (value) {\n\n /* No results */\n case 0:\n el.textContent = translate(\"search.result.none\")\n break\n\n /* One result */\n case 1:\n el.textContent = translate(\"search.result.one\")\n break\n\n /* Multiple result */\n default:\n el.textContent = translate(\"search.result.other\", value)\n }\n}\n\n/**\n * Reset number of search results\n *\n * @param el - Search result metadata element\n */\nexport function resetSearchResultMeta(\n el: HTMLElement\n): void {\n el.textContent = translate(\"search.result.placeholder\")\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Add an element to the search result list\n *\n * @param el - Search result list element\n * @param child - Search result element\n */\nexport function addToSearchResultList(\n el: HTMLElement, child: Element\n): void {\n el.appendChild(child)\n}\n\n/**\n * Reset search result list\n *\n * @param el - Search result list element\n */\nexport function resetSearchResultList(\n el: HTMLElement\n): void {\n el.innerHTML = \"\"\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n pipe\n} from \"rxjs\"\nimport {\n finalize,\n map,\n mapTo,\n observeOn,\n scan,\n switchMap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport { getElementOrThrow } from \"browser\"\nimport { SearchResult } from \"integrations/search\"\nimport { renderSearchResult } from \"templates\"\n\nimport { SearchQuery } from \"../../query\"\nimport {\n addToSearchResultList,\n resetSearchResultList,\n resetSearchResultMeta,\n setSearchResultMeta\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply options\n */\ninterface ApplyOptions {\n query$: Observable /* Search query observable */\n ready$: Observable /* Search ready observable */\n fetch$: Observable /* Result fetch observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply search results\n *\n * This function will perform a lazy rendering of the search results, depending\n * on the vertical offset of the search result container. When the scroll offset\n * reaches the bottom of the element, more results are fetched and rendered.\n *\n * @param el - Search result element\n * @param options - Options\n *\n * @return Operator function\n */\nexport function applySearchResult(\n el: HTMLElement, { query$, ready$, fetch$ }: ApplyOptions\n): MonoTypeOperatorFunction {\n const list = getElementOrThrow(\".md-search-result__list\", el)\n const meta = getElementOrThrow(\".md-search-result__meta\", el)\n return pipe(\n\n /* Apply search result metadata */\n withLatestFrom(query$, ready$),\n map(([result, query]) => {\n if (query.value) {\n setSearchResultMeta(meta, result.length)\n } else {\n resetSearchResultMeta(meta)\n }\n return result\n }),\n\n /* Apply search result list */\n switchMap(result => {\n const thresholds = [...result.map(([best]) => best.score), 0]\n return fetch$\n .pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n scan(index => {\n const container = el.parentElement!\n while (index < result.length) {\n addToSearchResultList(list, renderSearchResult(\n result[index++], thresholds[index]\n ))\n if (container.scrollHeight - container.offsetHeight > 16)\n break\n }\n return index\n }, 0),\n\n /* Re-map to search result */\n mapTo(result),\n\n /* Reset on complete or error */\n finalize(() => {\n resetSearchResultList(list)\n })\n )\n }\n )\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, pipe } from \"rxjs\"\nimport {\n distinctUntilChanged,\n filter,\n map,\n mapTo,\n startWith,\n switchMap\n} from \"rxjs/operators\"\n\nimport { WorkerHandler, watchElementOffset } from \"browser\"\nimport {\n SearchMessage,\n SearchResult,\n isSearchReadyMessage,\n isSearchResultMessage\n} from \"integrations\"\n\nimport { SearchQuery } from \"../../query\"\nimport { applySearchResult } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n query$: Observable /* Search query observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount search result from source observable\n *\n * @param handler - Worker handler\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountSearchResult(\n { rx$ }: WorkerHandler, { query$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => {\n const container = el.parentElement!\n\n /* Compute if search is ready */\n const ready$ = rx$\n .pipe(\n filter(isSearchReadyMessage),\n mapTo(true)\n )\n\n /* Compute whether there are more search results to fetch */\n const fetch$ = watchElementOffset(container)\n .pipe(\n map(({ y }) => {\n return y >= container.scrollHeight - container.offsetHeight - 16\n }),\n distinctUntilChanged(),\n filter(Boolean)\n )\n\n /* Apply search results */\n return rx$\n .pipe(\n filter(isSearchResultMessage),\n map(({ data }) => data),\n applySearchResult(el, { query$, ready$, fetch$ }),\n startWith([])\n )\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, combineLatest, pipe } from \"rxjs\"\nimport {\n distinctUntilChanged,\n filter,\n map,\n startWith,\n switchMap,\n zipWith\n} from \"rxjs/operators\"\n\nimport {\n Viewport,\n getElement,\n watchViewportAt\n} from \"browser\"\n\nimport { useComponent } from \"../../_\"\nimport {\n applyHeaderType,\n watchHeader\n} from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Header type\n */\nexport type HeaderType =\n | \"site\" /* Header shows site title */\n | \"page\" /* Header shows page title */\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Header\n */\nexport interface Header {\n type: HeaderType /* Header type */\n sticky: boolean /* Header stickyness */\n height: number /* Header visible height */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n document$: Observable /* Document observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount header from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountHeader(\n { document$, viewport$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => {\n const header$ = watchHeader(el, { document$ })\n\n /* Compute whether the header should switch to page header */\n const type$ = useComponent(\"main\")\n .pipe(\n map(main => getElement(\"h1, h2, h3, h4, h5, h6\", main)!),\n filter(hx => typeof hx !== \"undefined\"),\n zipWith(useComponent(\"header-title\")),\n switchMap(([hx, title]) => watchViewportAt(hx, { header$, viewport$ })\n .pipe(\n map(({ offset: { y } }) => {\n return y >= hx.offsetHeight ? \"page\" : \"site\"\n }),\n distinctUntilChanged(),\n applyHeaderType(title)\n )\n ),\n startWith(\"site\")\n )\n\n /* Combine into single observable */\n return combineLatest([header$, type$])\n .pipe(\n map(([header, type]): Header => ({ type, ...header }))\n )\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n of,\n pipe\n} from \"rxjs\"\nimport {\n distinctUntilChanged,\n finalize,\n map,\n observeOn,\n shareReplay,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { watchElementSize } from \"browser\"\n\nimport { Header, HeaderType } from \"../_\"\nimport {\n resetHeaderTitleActive,\n setHeaderTitleActive\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch header\n *\n * @param el - Header element\n *\n * @return Header observable\n */\nexport function watchHeader(\n el: HTMLElement, { document$ }: WatchOptions\n): Observable> {\n return document$\n .pipe(\n map(() => {\n const styles = getComputedStyle(el)\n return [\n \"sticky\", /* Modern browsers */\n \"-webkit-sticky\" /* Safari */\n ].includes(styles.position)\n }),\n distinctUntilChanged(),\n switchMap(sticky => {\n if (sticky) {\n return watchElementSize(el)\n .pipe(\n map(({ height }) => ({\n sticky: true,\n height\n }))\n )\n } else {\n return of({\n sticky: false,\n height: 0\n })\n }\n }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply header title type\n *\n * @param el - Header title element\n *\n * @return Operator function\n */\nexport function applyHeaderType(\n el: HTMLElement\n): MonoTypeOperatorFunction {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n tap(type => {\n setHeaderTitleActive(el, type === \"page\")\n }),\n\n /* Reset on complete or error */\n finalize(() => {\n resetHeaderTitleActive(el)\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header title active\n *\n * @param el - Header title element\n * @param value - Whether the title is shown\n */\nexport function setHeaderTitleActive(\n el: HTMLElement, value: boolean\n): void {\n el.setAttribute(\"data-md-state\", value ? \"active\" : \"\")\n}\n\n/**\n * Reset header title active\n *\n * @param el - Header title element\n */\nexport function resetHeaderTitleActive(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n Observable,\n OperatorFunction,\n Subject,\n noop,\n pipe\n} from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n finalize,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { Viewport } from \"browser\"\n\nimport { useComponent } from \"../../_\"\nimport { Header } from \"../../header\"\nimport {\n applyHeaderShadow,\n watchMain\n} from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Main area\n */\nexport interface Main {\n offset: number /* Main area top offset */\n height: number /* Main area visible height */\n active: boolean /* Scrolled past top offset */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount main area from source observable\n *\n * The header must be connected to the main area observable outside of the\n * operator function, as the header will persist in-between document switches\n * while the main area is replaced. However, the header observable must be\n * passed to this function, so we connect both via a long-living subject.\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountMain(\n { header$, viewport$ }: MountOptions\n): OperatorFunction {\n const main$ = new Subject
    ()\n\n /* Connect to main area observable via long-living subject */\n useComponent(\"header\")\n .pipe(\n switchMap(header => main$\n .pipe(\n distinctUntilKeyChanged(\"active\"),\n applyHeaderShadow(header)\n )\n )\n )\n .subscribe(noop)\n\n /* Return operator */\n return pipe(\n switchMap(el => watchMain(el, { header$, viewport$ })),\n tap(main => main$.next(main)),\n finalize(() => main$.complete())\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n Observable,\n animationFrameScheduler,\n combineLatest,\n pipe\n} from \"rxjs\"\nimport {\n distinctUntilChanged,\n distinctUntilKeyChanged,\n finalize,\n map,\n observeOn,\n switchMap,\n tap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchElementSize } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { Main } from \"../_\"\nimport {\n resetHeaderShadow,\n setHeaderShadow\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch options\n */\ninterface WatchOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Watch main area\n *\n * This function returns an observable that computes the visual parameters of\n * the main area which depends on the viewport vertical offset and height, as\n * well as the height of the header element, if the header is fixed.\n *\n * @param el - Main area element\n * @param options - Options\n *\n * @return Main area observable\n */\nexport function watchMain(\n el: HTMLElement, { header$, viewport$ }: WatchOptions\n): Observable
    {\n\n /* Compute necessary adjustment for header */\n const adjust$ = header$\n .pipe(\n map(({ height }) => height),\n distinctUntilChanged()\n )\n\n /* Compute the main area's top and bottom borders */\n const border$ = adjust$\n .pipe(\n switchMap(() => watchElementSize(el)\n .pipe(\n map(({ height }) => ({\n top: el.offsetTop,\n bottom: el.offsetTop + height\n })),\n distinctUntilKeyChanged(\"bottom\")\n )\n )\n )\n\n /* Compute the main area's offset, visible height and if we scrolled past */\n return combineLatest([adjust$, border$, viewport$])\n .pipe(\n map(([header, { top, bottom }, { offset: { y }, size: { height } }]) => {\n height = Math.max(0, height\n - Math.max(0, top - y, header)\n - Math.max(0, height + y - bottom)\n )\n return {\n offset: top - header,\n height,\n active: top - header <= y\n }\n }),\n distinctUntilChanged
    ((a, b) => {\n return a.offset === b.offset\n && a.height === b.height\n && a.active === b.active\n })\n )\n}\n\n/* ------------------------------------------------------------------------- */\n\n/**\n * Apply header shadow\n *\n * @param el - Header element\n *\n * @return Operator function\n */\nexport function applyHeaderShadow(\n el: HTMLElement\n): MonoTypeOperatorFunction
    {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n tap(({ active }) => {\n setHeaderShadow(el, active)\n }),\n\n /* Reset on complete or error */\n finalize(() => {\n resetHeaderShadow(el)\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set header shadow\n *\n * @param el - Header element\n * @param value - Whether the shadow is shown\n */\nexport function setHeaderShadow(\n el: HTMLElement, value: boolean\n): void {\n el.setAttribute(\"data-md-state\", value ? \"shadow\" : \"\")\n}\n\n/**\n * Reset header shadow\n *\n * @param el - Header element\n */\nexport function resetHeaderShadow(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, OperatorFunction, of, pipe } from \"rxjs\"\nimport {\n distinctUntilKeyChanged,\n map,\n switchMap\n} from \"rxjs/operators\"\n\nimport { Viewport, watchViewportAt } from \"browser\"\n\nimport { Header } from \"../../header\"\nimport { applyTabs } from \"../react\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Tabs\n */\nexport interface Tabs {\n hidden: boolean /* Whether the tabs are hidden */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n header$: Observable
    /* Header observable */\n viewport$: Observable /* Viewport observable */\n screen$: Observable /* Media screen observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount tabs from source observable\n *\n * @param options - Options\n *\n * @return Operator function\n */\nexport function mountTabs(\n { header$, viewport$, screen$ }: MountOptions\n): OperatorFunction {\n return pipe(\n switchMap(el => screen$\n .pipe(\n switchMap(screen => {\n\n /* [screen +]: Mount tabs above screen breakpoint */\n if (screen) {\n return watchViewportAt(el, { header$, viewport$ })\n .pipe(\n map(({ offset: { y } }) => ({ hidden: y >= 10 })),\n distinctUntilKeyChanged(\"hidden\"),\n applyTabs(el)\n )\n\n /* [screen -]: Unmount tabs below screen breakpoint */\n } else {\n return of({ hidden: true })\n }\n })\n )\n )\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport {\n MonoTypeOperatorFunction,\n animationFrameScheduler,\n pipe\n} from \"rxjs\"\nimport { finalize, observeOn, tap } from \"rxjs/operators\"\n\nimport { Tabs } from \"../_\"\nimport {\n resetTabsHidden,\n setTabsHidden\n} from \"../set\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Apply tabs\n *\n * @param el - Tabs element\n *\n * @return Operator function\n */\nexport function applyTabs(\n el: HTMLElement\n): MonoTypeOperatorFunction {\n return pipe(\n\n /* Defer repaint to next animation frame */\n observeOn(animationFrameScheduler),\n tap(({ hidden }) => {\n setTabsHidden(el, hidden)\n }),\n\n /* Reset on complete or error */\n finalize(() => {\n resetTabsHidden(el)\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Set tabs hidden\n *\n * @param el - Tabs element\n * @param value - Whether the element is hidden\n */\nexport function setTabsHidden(\n el: HTMLElement, value: boolean\n): void {\n el.setAttribute(\"data-md-state\", value ? \"hidden\" : \"\")\n}\n\n/**\n * Reset tabs hidden\n *\n * @param el - Tabs element\n */\nexport function resetTabsHidden(\n el: HTMLElement\n): void {\n el.removeAttribute(\"data-md-state\")\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable, fromEvent, iif, merge } from \"rxjs\"\nimport { map, mapTo, shareReplay, switchMap } from \"rxjs/operators\"\n\nimport { getElements } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Check whether the given device is an Apple device\n *\n * @return Test result\n */\nfunction isAppleDevice(): boolean {\n return /(iPad|iPhone|iPod)/.test(navigator.userAgent)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all elements with `data-md-scrollfix` attributes\n *\n * This is a year-old patch which ensures that overflow scrolling works at the\n * top and bottom of containers on iOS by ensuring a `1px` scroll offset upon\n * the start of a touch event.\n *\n * @see https://bit.ly/2SCtAOO - Original source\n *\n * @param options - Options\n */\nexport function patchScrollfix(\n { document$ }: PatchOptions\n): void {\n const els$ = document$\n .pipe(\n map(() => getElements(\"[data-md-scrollfix]\")),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* Remove marker attribute, so we'll only add the fix once */\n els$.subscribe(els => {\n for (const el of els)\n el.removeAttribute(\"data-md-scrollfix\")\n })\n\n /* Patch overflow scrolling on touch start */\n iif(isAppleDevice, els$, NEVER)\n .pipe(\n switchMap(els => merge(...els.map(el => (\n fromEvent(el, \"touchstart\")\n .pipe(\n mapTo(el)\n )\n ))))\n )\n .subscribe(el => {\n const top = el.scrollTop\n\n /* We're at the top of the container */\n if (top === 0) {\n el.scrollTop = 1\n\n /* We're at the bottom of the container */\n } else if (top + el.offsetHeight === el.scrollHeight) {\n el.scrollTop = top - 1\n }\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { NEVER, Observable } from \"rxjs\"\nimport { catchError, map, switchMap } from \"rxjs/operators\"\n\nimport { getElementOrThrow, getElements } from \"browser\"\nimport { renderSource } from \"templates\"\nimport { cache, hash } from \"utilities\"\n\nimport { fetchSourceFactsFromGitHub } from \"./github\"\nimport { fetchSourceFactsFromGitLab } from \"./gitlab\"\n\n/* ----------------------------------------------------------------------------\n * Types\n * ------------------------------------------------------------------------- */\n\n/**\n * Source facts\n */\nexport type SourceFacts = string[]\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Helper functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch source facts\n *\n * @param url - Source repository URL\n *\n * @return Source facts observable\n */\nfunction fetchSourceFacts(\n url: string\n): Observable {\n const [type] = url.match(/(git(?:hub|lab))/i) || []\n switch (type.toLowerCase()) {\n\n /* GitHub repository */\n case \"github\":\n const [, user, repo] = url.match(/^.+github\\.com\\/([^\\/]+)\\/?([^\\/]+)?/i)\n return fetchSourceFactsFromGitHub(user, repo)\n\n /* GitLab repository */\n case \"gitlab\":\n const [, base, slug] = url.match(/^.+?([^\\/]*gitlab[^\\/]+)\\/(.+?)\\/?$/i)\n return fetchSourceFactsFromGitLab(base, slug)\n\n /* Everything else */\n default:\n return NEVER\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch elements containing repository information\n *\n * This function will retrieve the URL from the repository link and try to\n * query data from integrated source code platforms like GitHub or GitLab.\n *\n * @param options - Options\n */\nexport function patchSource(\n { document$ }: PatchOptions\n): void {\n document$\n .pipe(\n map(() => getElementOrThrow(\".md-source[href]\")),\n switchMap(({ href }) => (\n cache(`${hash(href)}`, () => fetchSourceFacts(href))\n )),\n catchError(() => NEVER)\n )\n .subscribe(facts => {\n for (const el of getElements(\".md-source__repository\")) {\n if (!el.hasAttribute(\"data-md-state\")) {\n el.setAttribute(\"data-md-state\", \"done\")\n el.appendChild(renderSource(facts))\n }\n }\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Repo, User } from \"github-types\"\nimport { Observable, from } from \"rxjs\"\nimport { map } from \"rxjs/operators\"\n\nimport { round } from \"utilities\"\n\nimport { SourceFacts } from \"..\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitHub source facts\n *\n * @param user - GitHub user\n * @param repo - GitHub repository\n *\n * @return Source facts observable\n */\nexport function fetchSourceFactsFromGitHub(\n user: string, repo?: string\n): Observable {\n const url = typeof repo !== \"undefined\"\n ? `https://api.github.com/repos/${user}/${repo}`\n : `https://api.github.com/users/${user}`\n return from(fetch(url).then(res => res.json()))\n .pipe(\n map(data => {\n\n /* GitHub repository */\n if (typeof repo !== \"undefined\") {\n const { stargazers_count, forks_count }: Repo = data\n return [\n `${round(stargazers_count || 0)} Stars`,\n `${round(forks_count || 0)} Forks`\n ]\n\n /* GitHub user/organization */\n } else {\n const { public_repos }: User = data\n return [\n `${round(public_repos || 0)} Repositories`\n ]\n }\n })\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { ProjectSchema } from \"gitlab\"\nimport { Observable, from } from \"rxjs\"\nimport { map } from \"rxjs/operators\"\n\nimport { round } from \"utilities\"\n\nimport { SourceFacts } from \"..\"\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch GitLab source facts\n *\n * @param base - GitLab base\n * @param project - GitLab project\n *\n * @return Source facts observable\n */\nexport function fetchSourceFactsFromGitLab(\n base: string, project: string\n): Observable {\n const url = `https://${base}/api/v4/projects/${encodeURIComponent(project)}`\n return from(fetch(url).then(res => res.json()))\n .pipe(\n map(({ star_count, forks_count }: ProjectSchema) => ([\n `${round(star_count)} Stars`,\n `${round(forks_count)} Forks`\n ]))\n )\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\n// DISCLAIMER: this file is still WIP. There're some refactoring opportunities\n// which must be tackled after we gathered some feedback on v5.\n// tslint:disable\n\nimport \"focus-visible\"\n\nimport {\n merge,\n combineLatest,\n animationFrameScheduler,\n fromEvent,\n from,\n defer,\n of,\n NEVER\n} from \"rxjs\"\nimport {\n delay,\n switchMap,\n tap,\n filter,\n withLatestFrom,\n observeOn,\n take,\n shareReplay,\n catchError,\n map\n} from \"rxjs/operators\"\n\nimport {\n watchToggle,\n setToggle,\n getElements,\n watchMedia,\n watchDocument,\n watchLocation,\n watchLocationHash,\n watchViewport,\n isLocalLocation,\n setLocationHash,\n watchLocationBase\n} from \"browser\"\nimport {\n mountHeader,\n mountMain,\n mountNavigation,\n mountSearch,\n mountTableOfContents,\n mountTabs,\n useComponent,\n setupComponents,\n mountSearchQuery,\n mountSearchReset,\n mountSearchResult\n} from \"components\"\nimport {\n setupClipboard,\n setupDialog,\n setupKeyboard,\n setupInstantLoading,\n setupSearchWorker,\n SearchIndex,\n SearchIndexPipeline\n} from \"integrations\"\nimport {\n patchCodeBlocks,\n patchTables,\n patchDetails,\n patchScrollfix,\n patchSource,\n patchScripts\n} from \"patches\"\nimport { isConfig } from \"utilities\"\n\n/* ------------------------------------------------------------------------- */\n\n/* Denote that JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Test for iOS */\nif (navigator.userAgent.match(/(iPad|iPhone|iPod)/g))\n document.documentElement.classList.add(\"ios\")\n\n/**\n * Set scroll lock\n *\n * @param el - Scrollable element\n * @param value - Vertical offset\n */\nexport function setScrollLock(\n el: HTMLElement, value: number\n): void {\n el.setAttribute(\"data-md-state\", \"lock\")\n el.style.top = `-${value}px`\n}\n\n/**\n * Reset scroll lock\n *\n * @param el - Scrollable element\n */\nexport function resetScrollLock(\n el: HTMLElement\n): void {\n const value = -1 * parseInt(el.style.top, 10)\n el.removeAttribute(\"data-md-state\")\n el.style.top = \"\"\n if (value)\n window.scrollTo(0, value)\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Initialize Material for MkDocs\n *\n * @param config - Configuration\n */\nexport function initialize(config: unknown) {\n if (!isConfig(config))\n throw new SyntaxError(`Invalid configuration: ${JSON.stringify(config)}`)\n\n /* Set up subjects */\n const document$ = watchDocument()\n const location$ = watchLocation()\n\n /* Set up user interface observables */\n const base$ = watchLocationBase(config.base, { location$ })\n const hash$ = watchLocationHash()\n const viewport$ = watchViewport()\n const tablet$ = watchMedia(\"(min-width: 960px)\")\n const screen$ = watchMedia(\"(min-width: 1220px)\")\n\n /* ----------------------------------------------------------------------- */\n\n /* Set up component bindings */\n setupComponents([\n \"announce\", /* Announcement bar */\n \"container\", /* Container */\n \"header\", /* Header */\n \"header-title\", /* Header title */\n \"main\", /* Main area */\n \"navigation\", /* Navigation */\n \"search\", /* Search */\n \"search-query\", /* Search input */\n \"search-reset\", /* Search reset */\n \"search-result\", /* Search results */\n \"skip\", /* Skip link */\n \"tabs\", /* Tabs */\n \"toc\" /* Table of contents */\n ], { document$ })\n\n const keyboard$ = setupKeyboard()\n\n // Hack: only make code blocks focusable on non-touch devices\n if (matchMedia(\"(hover)\").matches)\n patchCodeBlocks({ document$, viewport$ })\n patchDetails({ document$, hash$ })\n patchScripts({ document$ })\n patchSource({ document$ })\n patchTables({ document$ })\n\n /* Force 1px scroll offset to trigger overflow scrolling */\n patchScrollfix({ document$ })\n\n /* Set up clipboard and dialog */\n const dialog$ = setupDialog()\n const clipboard$ = setupClipboard({ document$, dialog$ })\n\n /* ----------------------------------------------------------------------- */\n\n /* Create header observable */\n const header$ = useComponent(\"header\")\n .pipe(\n mountHeader({ document$, viewport$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n const main$ = useComponent(\"main\")\n .pipe(\n mountMain({ header$, viewport$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* ----------------------------------------------------------------------- */\n\n const navigation$ = useComponent(\"navigation\")\n .pipe(\n mountNavigation({ header$, main$, viewport$, screen$ }),\n shareReplay({ bufferSize: 1, refCount: true }) // shareReplay because there might be late subscribers\n )\n\n const toc$ = useComponent(\"toc\")\n .pipe(\n mountTableOfContents({ header$, main$, viewport$, tablet$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n const tabs$ = useComponent(\"tabs\")\n .pipe(\n mountTabs({ header$, viewport$, screen$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* ----------------------------------------------------------------------- */\n\n /* Search worker - only if search is present */\n const worker$ = useComponent(\"search\")\n .pipe(\n switchMap(() => defer(() => {\n const index = config.search && config.search.index\n ? config.search.index\n : undefined\n\n /* Fetch index if it wasn't passed explicitly */\n const index$ = (\n typeof index !== \"undefined\"\n ? from(index)\n : base$\n .pipe(\n switchMap(base => fetch(`${base}/search/search_index.json`, {\n credentials: \"same-origin\"\n }).then(res => res.json())) // SearchIndex\n )\n )\n\n return of(setupSearchWorker(config.search.worker, {\n base$, index$\n }))\n }))\n )\n\n /* ----------------------------------------------------------------------- */\n\n /* Mount search query */\n const search$ = worker$\n .pipe(\n switchMap(worker => {\n\n const query$ = useComponent(\"search-query\")\n .pipe(\n mountSearchQuery(worker, { transform: config.search.transform }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* Mount search reset */\n const reset$ = useComponent(\"search-reset\")\n .pipe(\n mountSearchReset(),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* Mount search result */\n const result$ = useComponent(\"search-result\")\n .pipe(\n mountSearchResult(worker, { query$ }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n return useComponent(\"search\")\n .pipe(\n mountSearch(worker, { query$, reset$, result$ }),\n )\n }),\n catchError(() => {\n useComponent(\"search\")\n .subscribe(el => el.hidden = true) // TODO: Hack\n return NEVER\n }),\n shareReplay({ bufferSize: 1, refCount: true })\n )\n\n /* ----------------------------------------------------------------------- */\n\n // // put into search...\n hash$\n .pipe(\n tap(() => setToggle(\"search\", false)),\n delay(125), // ensure that it runs after the body scroll reset...\n )\n .subscribe(hash => setLocationHash(`#${hash}`))\n\n // TODO: scroll restoration must be centralized\n combineLatest([\n watchToggle(\"search\"),\n tablet$,\n ])\n .pipe(\n withLatestFrom(viewport$),\n switchMap(([[toggle, tablet], { offset: { y }}]) => {\n const active = toggle && !tablet\n return document$\n .pipe(\n delay(active ? 400 : 100),\n observeOn(animationFrameScheduler),\n tap(({ body }) => active\n ? setScrollLock(body, y)\n : resetScrollLock(body)\n )\n )\n })\n )\n .subscribe()\n\n /* ----------------------------------------------------------------------- */\n\n /* Always close drawer on click */\n fromEvent(document.body, \"click\")\n .pipe(\n filter(ev => !(ev.metaKey || ev.ctrlKey)),\n filter(ev => {\n if (ev.target instanceof HTMLElement) {\n const el = ev.target.closest(\"a\") // TODO: abstract as link click?\n if (el && isLocalLocation(el)) {\n return true\n }\n }\n return false\n })\n )\n .subscribe(() => {\n setToggle(\"drawer\", false)\n })\n\n /* Enable instant loading, if not on file:// protocol */\n if (\n config.features.includes(\"navigation.instant\") &&\n location.protocol !== \"file:\"\n ) {\n const dom = new DOMParser()\n\n /* Fetch sitemap and extract URL whitelist */\n base$\n .pipe(\n switchMap(base => from(fetch(`${base}/sitemap.xml`)\n .then(res => res.text())\n .then(text => dom.parseFromString(text, \"text/xml\"))\n )),\n withLatestFrom(base$),\n map(([document, base]) => {\n const urls = getElements(\"loc\", document)\n .map(node => node.textContent!)\n\n // Hack: This is a temporary fix to normalize instant loading lookup\n // on localhost and Netlify previews. If this approach proves to be\n // suitable, we'll refactor URL whitelisting anyway. We take the two\n // shortest URLs and determine the common prefix to isolate the\n // domain. If there're no two domains, we just leave it as-is, as\n // there isn't anything to be loaded anway.\n if (urls.length > 1) {\n const [a, b] = urls.sort((a, b) => a.length - b.length)\n\n /* Determine common prefix */\n let index = 0\n if (a === b)\n index = a.length\n else\n while (a.charAt(index) === b.charAt(index))\n index++\n\n /* Replace common prefix (i.e. base) with effective base */\n for (let i = 0; i < urls.length; i++)\n urls[i] = urls[i].replace(a.slice(0, index), `${base}/`)\n }\n return urls\n })\n )\n .subscribe(urls => {\n setupInstantLoading(urls, { document$, location$, viewport$ })\n })\n }\n\n /* ----------------------------------------------------------------------- */\n\n /* Unhide permalinks on first tab */\n keyboard$\n .pipe(\n filter(key => key.mode === \"global\" && key.type === \"Tab\"),\n take(1)\n )\n .subscribe(() => {\n for (const link of getElements(\".headerlink\"))\n link.style.visibility = \"visible\"\n })\n\n /* ----------------------------------------------------------------------- */\n\n const state = {\n\n /* Browser observables */\n document$,\n location$,\n viewport$,\n\n /* Component observables */\n header$,\n main$,\n navigation$,\n search$,\n tabs$,\n toc$,\n\n /* Integration observables */\n clipboard$,\n keyboard$,\n dialog$\n }\n\n /* Subscribe to all observables */\n merge(...Object.values(state))\n .subscribe()\n return state\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, combineLatest } from \"rxjs\"\nimport { distinctUntilKeyChanged, map } from \"rxjs/operators\"\n\nimport { Viewport, getElements } from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n document$: Observable /* Document observable */\n viewport$: Observable /* Viewport observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `code` elements\n *\n * This function will make overflowing code blocks focusable via keyboard, so\n * they can be scrolled without a mouse.\n *\n * @param options - Options\n */\nexport function patchCodeBlocks(\n { document$, viewport$ }: MountOptions\n): void {\n const els$ = document$\n .pipe(\n map(() => getElements(\"pre > code\"))\n )\n\n /* Observe viewport size only */\n const size$ = viewport$\n .pipe(\n distinctUntilKeyChanged(\"size\")\n )\n\n /* Make overflowing elements focusable */\n combineLatest([els$, size$])\n .subscribe(([els]) => {\n for (const el of els) {\n if (el.scrollWidth > el.clientWidth)\n el.setAttribute(\"tabindex\", \"0\")\n else\n el.removeAttribute(\"tabindex\")\n }\n })\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable, fromEvent, merge } from \"rxjs\"\nimport {\n filter,\n map,\n switchMapTo,\n tap\n} from \"rxjs/operators\"\n\nimport {\n getElement,\n getElements,\n watchMedia\n} from \"browser\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n hash$: Observable /* Location hash observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `details` elements\n *\n * This function will ensure that all `details` tags are opened prior to\n * printing, so the whole content of the page is included, and on anchor jumps.\n *\n * @param options - Options\n */\nexport function patchDetails(\n { document$, hash$ }: PatchOptions\n): void {\n const els$ = document$\n .pipe(\n map(() => getElements(\"details\"))\n )\n\n /* Open all details before printing */\n merge(\n watchMedia(\"print\").pipe(filter(Boolean)), /* Webkit */\n fromEvent(window, \"beforeprint\") /* IE, FF */\n )\n .pipe(\n switchMapTo(els$)\n )\n .subscribe(els => {\n for (const el of els)\n el.setAttribute(\"open\", \"\")\n })\n\n /* Open parent details and fix anchor jump */\n hash$\n .pipe(\n map(id => getElement(`[id=\"${id}\"]`)!),\n filter(el => typeof el !== \"undefined\"),\n tap(el => {\n const details = el.closest(\"details\")\n if (details && !details.open)\n details.setAttribute(\"open\", \"\")\n })\n )\n .subscribe(el => el.scrollIntoView())\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { EMPTY, Observable, noop, of } from \"rxjs\"\nimport {\n concatMap,\n map,\n skip,\n switchMap,\n withLatestFrom\n} from \"rxjs/operators\"\n\nimport {\n createElement,\n getElements,\n replaceElement\n} from \"browser\"\nimport { useComponent } from \"components\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch options\n */\ninterface PatchOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `script` elements\n *\n * This function must be run after a document switch, which means the first\n * emission must be ignored.\n *\n * @param options - Options\n */\nexport function patchScripts(\n { document$ }: PatchOptions\n): void {\n const els$ = document$\n .pipe(\n skip(1),\n withLatestFrom(useComponent(\"container\")),\n map(([, el]) => getElements(\"script\", el))\n )\n\n /* Evaluate all scripts via replacement in order */\n els$\n .pipe(\n switchMap(els => of(...els)),\n concatMap(el => {\n const script = createElement(\"script\")\n if (el.src) {\n script.src = el.src\n replaceElement(el, script)\n\n /* Complete when script is loaded */\n return new Observable(observer => {\n script.onload = () => observer.complete()\n })\n\n /* Complete immediately */\n } else {\n script.textContent = el.textContent!\n replaceElement(el, script)\n return EMPTY\n }\n })\n )\n .subscribe(noop)\n}\n","/*\n * Copyright (c) 2016-2020 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport { Observable } from \"rxjs\"\nimport { map } from \"rxjs/operators\"\n\nimport {\n createElement,\n getElements,\n replaceElement\n} from \"browser\"\nimport { renderTable } from \"templates\"\n\n/* ----------------------------------------------------------------------------\n * Helper types\n * ------------------------------------------------------------------------- */\n\n/**\n * Mount options\n */\ninterface MountOptions {\n document$: Observable /* Document observable */\n}\n\n/* ----------------------------------------------------------------------------\n * Functions\n * ------------------------------------------------------------------------- */\n\n/**\n * Patch all `table` elements\n *\n * This function will re-render all tables by wrapping them to improve overflow\n * scrolling on smaller screen sizes.\n *\n * @param options - Options\n */\nexport function patchTables(\n { document$ }: MountOptions\n): void {\n const sentinel = createElement(\"table\")\n document$\n .pipe(\n map(() => getElements(\"table:not([class])\"))\n )\n .subscribe(els => {\n for (const el of els) {\n replaceElement(el, sentinel)\n replaceElement(sentinel, renderTable(el))\n }\n })\n}\n"],"sourceRoot":""} \ No newline at end of file diff --git a/material/assets/javascripts/vendor.e3b5b4d0.min.js b/material/assets/javascripts/vendor.25dd9bf1.min.js similarity index 97% rename from material/assets/javascripts/vendor.e3b5b4d0.min.js rename to material/assets/javascripts/vendor.25dd9bf1.min.js index 2a697282d..8837c6ae0 100644 --- a/material/assets/javascripts/vendor.e3b5b4d0.min.js +++ b/material/assets/javascripts/vendor.25dd9bf1.min.js @@ -13,7 +13,7 @@ LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 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(function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n};\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to get private field on non-instance\");\r\n }\r\n return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to set private field on non-instance\");\r\n }\r\n privateMap.set(receiver, value);\r\n return value;\r\n}\r\n","export function hasLift(source) {\n return typeof (source === null || source === void 0 ? void 0 : source.lift) === 'function';\n}\nexport function operate(init) {\n return function (source) {\n if (hasLift(source)) {\n return source.lift(function (liftedSource) {\n try {\n return init(liftedSource, this);\n }\n catch (err) {\n this.error(err);\n }\n });\n }\n throw new TypeError('Unable to lift unknown Observable type');\n };\n}\n//# sourceMappingURL=lift.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nvar OperatorSubscriber = (function (_super) {\n __extends(OperatorSubscriber, _super);\n function OperatorSubscriber(destination, onNext, onError, onComplete, onUnsubscribe) {\n var _this = _super.call(this, destination) || this;\n _this.onUnsubscribe = onUnsubscribe;\n if (onNext) {\n _this._next = function (value) {\n try {\n onNext(value);\n }\n catch (err) {\n this.error(err);\n }\n };\n }\n if (onError) {\n _this._error = function (err) {\n try {\n onError(err);\n }\n catch (err) {\n this.destination.error(err);\n }\n this.unsubscribe();\n };\n }\n if (onComplete) {\n _this._complete = function () {\n try {\n onComplete();\n }\n catch (err) {\n this.destination.error(err);\n }\n this.unsubscribe();\n };\n }\n return _this;\n }\n OperatorSubscriber.prototype.unsubscribe = function () {\n var _a;\n !this.closed && ((_a = this.onUnsubscribe) === null || _a === void 0 ? void 0 : _a.call(this));\n _super.prototype.unsubscribe.call(this);\n };\n return OperatorSubscriber;\n}(Subscriber));\nexport { OperatorSubscriber };\n//# sourceMappingURL=OperatorSubscriber.js.map","import { SafeSubscriber, Subscriber } from './Subscriber';\nimport { isSubscription } from './Subscription';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nimport { reportUnhandledError } from './util/reportUnhandledError';\nvar Observable = (function () {\n function Observable(subscribe) {\n if (subscribe) {\n this._subscribe = subscribe;\n }\n }\n Observable.prototype.lift = function (operator) {\n var observable = new Observable();\n observable.source = this;\n observable.operator = operator;\n return observable;\n };\n Observable.prototype.subscribe = function (observerOrNext, error, complete) {\n var subscriber = isSubscriber(observerOrNext) ? observerOrNext : new SafeSubscriber(observerOrNext, error, complete);\n var _a = this, operator = _a.operator, source = _a.source;\n subscriber.add(operator\n ? operator.call(subscriber, source)\n : source || config.useDeprecatedSynchronousErrorHandling\n ? this._subscribe(subscriber)\n : this._trySubscribe(subscriber));\n return subscriber;\n };\n Observable.prototype._trySubscribe = function (sink) {\n try {\n return this._subscribe(sink);\n }\n catch (err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n else {\n canReportError(sink) ? sink.error(err) : reportUnhandledError(err);\n }\n }\n };\n Observable.prototype.forEach = function (next, promiseCtor) {\n var _this = this;\n promiseCtor = getPromiseCtor(promiseCtor);\n return new promiseCtor(function (resolve, reject) {\n var subscription;\n subscription = _this.subscribe(function (value) {\n try {\n next(value);\n }\n catch (err) {\n reject(err);\n subscription === null || subscription === void 0 ? void 0 : subscription.unsubscribe();\n }\n }, reject, resolve);\n });\n };\n Observable.prototype._subscribe = function (subscriber) {\n var _a;\n return (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber);\n };\n Observable.prototype[Symbol_observable] = function () {\n return this;\n };\n Observable.prototype.pipe = function () {\n var operations = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n operations[_i] = arguments[_i];\n }\n return operations.length ? pipeFromArray(operations)(this) : this;\n };\n Observable.prototype.toPromise = function (promiseCtor) {\n var _this = this;\n promiseCtor = getPromiseCtor(promiseCtor);\n return new promiseCtor(function (resolve, reject) {\n var value;\n _this.subscribe(function (x) { return (value = x); }, function (err) { return reject(err); }, function () { return resolve(value); });\n });\n };\n Observable.create = function (subscribe) {\n return new Observable(subscribe);\n };\n return Observable;\n}());\nexport { Observable };\nfunction getPromiseCtor(promiseCtor) {\n var _a;\n return (_a = promiseCtor !== null && promiseCtor !== void 0 ? promiseCtor : config.Promise) !== null && _a !== void 0 ? _a : Promise;\n}\nexport function canReportError(subscriber) {\n while (subscriber) {\n var _a = subscriber, closed_1 = _a.closed, destination = _a.destination, isStopped = _a.isStopped;\n if (closed_1 || isStopped) {\n return false;\n }\n subscriber = destination && destination instanceof Subscriber ? destination : null;\n }\n return true;\n}\nfunction isObserver(value) {\n return value && typeof value.next === 'function' && typeof value.error === 'function' && typeof value.complete === 'function';\n}\nfunction isSubscriber(value) {\n return (value && value instanceof Subscriber) || (isObserver(value) && isSubscription(value));\n}\n//# sourceMappingURL=Observable.js.map","import { createErrorClass } from './createErrorClass';\nexport var UnsubscriptionError = createErrorClass(function (_super) {\n return function UnsubscriptionError(errors) {\n _super(this);\n this.message = errors\n ? errors.length + \" errors occurred during unsubscription:\\n\" + errors.map(function (err, i) { return i + 1 + \") \" + err.toString(); }).join('\\n ')\n : '';\n this.name = 'UnsubscriptionError';\n this.errors = errors;\n };\n});\n//# sourceMappingURL=UnsubscriptionError.js.map","import { __spreadArrays } from \"tslib\";\nimport { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nimport { arrRemove } from './util/arrRemove';\nvar Subscription = (function () {\n function Subscription(initialTeardown) {\n this.initialTeardown = initialTeardown;\n this.closed = false;\n this._parentage = null;\n this._teardowns = null;\n }\n Subscription.prototype.unsubscribe = function () {\n var errors;\n if (!this.closed) {\n this.closed = true;\n var _parentage = this._parentage;\n if (Array.isArray(_parentage)) {\n for (var _i = 0, _parentage_1 = _parentage; _i < _parentage_1.length; _i++) {\n var parent_1 = _parentage_1[_i];\n parent_1.remove(this);\n }\n }\n else {\n _parentage === null || _parentage === void 0 ? void 0 : _parentage.remove(this);\n }\n var initialTeardown = this.initialTeardown;\n if (isFunction(initialTeardown)) {\n try {\n initialTeardown();\n }\n catch (e) {\n errors = e instanceof UnsubscriptionError ? e.errors : [e];\n }\n }\n var _teardowns = this._teardowns;\n if (_teardowns) {\n this._teardowns = null;\n for (var _a = 0, _teardowns_1 = _teardowns; _a < _teardowns_1.length; _a++) {\n var teardown_1 = _teardowns_1[_a];\n try {\n execTeardown(teardown_1);\n }\n catch (err) {\n errors = errors !== null && errors !== void 0 ? errors : [];\n if (err instanceof UnsubscriptionError) {\n errors = __spreadArrays(errors, err.errors);\n }\n else {\n errors.push(err);\n }\n }\n }\n }\n if (errors) {\n throw new UnsubscriptionError(errors);\n }\n }\n };\n Subscription.prototype.add = function (teardown) {\n var _a;\n if (teardown && teardown !== this) {\n if (this.closed) {\n execTeardown(teardown);\n }\n else {\n if (teardown instanceof Subscription) {\n if (teardown.closed || teardown._hasParent(this)) {\n return;\n }\n teardown._addParent(this);\n }\n (this._teardowns = (_a = this._teardowns) !== null && _a !== void 0 ? _a : []).push(teardown);\n }\n }\n };\n Subscription.prototype._hasParent = function (parent) {\n var _parentage = this._parentage;\n return _parentage === parent || (Array.isArray(_parentage) && _parentage.includes(parent));\n };\n Subscription.prototype._addParent = function (parent) {\n var _parentage = this._parentage;\n this._parentage = Array.isArray(_parentage) ? (_parentage.push(parent), _parentage) : _parentage ? [_parentage, parent] : parent;\n };\n Subscription.prototype._removeParent = function (parent) {\n var _parentage = this._parentage;\n if (_parentage === parent) {\n this._parentage = null;\n }\n else if (Array.isArray(_parentage)) {\n arrRemove(_parentage, parent);\n }\n };\n Subscription.prototype.remove = function (teardown) {\n var _teardowns = this._teardowns;\n _teardowns && arrRemove(_teardowns, teardown);\n if (teardown instanceof Subscription) {\n teardown._removeParent(this);\n }\n };\n Subscription.EMPTY = (function (empty) {\n empty.closed = true;\n return empty;\n })(new Subscription());\n return Subscription;\n}());\nexport { Subscription };\nexport var EMPTY_SUBSCRIPTION = Subscription.EMPTY;\nexport function isSubscription(value) {\n return (value instanceof Subscription ||\n (value &&\n 'closed' in value &&\n typeof value.remove === 'function' &&\n typeof value.add === 'function' &&\n typeof value.unsubscribe === 'function'));\n}\nfunction execTeardown(teardown) {\n if (typeof teardown === 'function') {\n teardown();\n }\n else {\n teardown.unsubscribe();\n }\n}\n//# sourceMappingURL=Subscription.js.map","export function getSymbolIterator() {\n if (typeof Symbol !== 'function' || !Symbol.iterator) {\n return '@@iterator';\n }\n return Symbol.iterator;\n}\nexport var iterator = getSymbolIterator();\nexport var $$iterator = iterator;\n//# sourceMappingURL=iterator.js.map","export function isPromise(value) {\n return !!value && typeof value.subscribe !== 'function' && typeof value.then === 'function';\n}\n//# sourceMappingURL=isPromise.js.map","import { __asyncValues, __awaiter, __generator } from \"tslib\";\nexport function subscribeToAsyncIterable(asyncIterable) {\n return function (subscriber) {\n process(asyncIterable, subscriber).catch(function (err) { return subscriber.error(err); });\n };\n}\nfunction process(asyncIterable, subscriber) {\n var asyncIterable_1, asyncIterable_1_1;\n var e_1, _a;\n return __awaiter(this, void 0, void 0, function () {\n var value, e_1_1;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0:\n _b.trys.push([0, 5, 6, 11]);\n asyncIterable_1 = __asyncValues(asyncIterable);\n _b.label = 1;\n case 1: return [4, asyncIterable_1.next()];\n case 2:\n if (!(asyncIterable_1_1 = _b.sent(), !asyncIterable_1_1.done)) return [3, 4];\n value = asyncIterable_1_1.value;\n subscriber.next(value);\n _b.label = 3;\n case 3: return [3, 1];\n case 4: return [3, 11];\n case 5:\n e_1_1 = _b.sent();\n e_1 = { error: e_1_1 };\n return [3, 11];\n case 6:\n _b.trys.push([6, , 9, 10]);\n if (!(asyncIterable_1_1 && !asyncIterable_1_1.done && (_a = asyncIterable_1.return))) return [3, 8];\n return [4, _a.call(asyncIterable_1)];\n case 7:\n _b.sent();\n _b.label = 8;\n case 8: return [3, 10];\n case 9:\n if (e_1) throw e_1.error;\n return [7];\n case 10: return [7];\n case 11:\n subscriber.complete();\n return [2];\n }\n });\n });\n}\n//# sourceMappingURL=subscribeToAsyncIterable.js.map","import { scheduleObservable } from './scheduleObservable';\nimport { schedulePromise } from './schedulePromise';\nimport { scheduleArray } from './scheduleArray';\nimport { scheduleIterable } from './scheduleIterable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isPromise } from '../util/isPromise';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isIterable } from '../util/isIterable';\nimport { scheduleAsyncIterable } from './scheduleAsyncIterable';\nexport function scheduled(input, scheduler) {\n if (input != null) {\n if (isInteropObservable(input)) {\n return scheduleObservable(input, scheduler);\n }\n else if (isPromise(input)) {\n return schedulePromise(input, scheduler);\n }\n else if (isArrayLike(input)) {\n return scheduleArray(input, scheduler);\n }\n else if (isIterable(input) || typeof input === 'string') {\n return scheduleIterable(input, scheduler);\n }\n else if (Symbol && Symbol.asyncIterator && typeof input[Symbol.asyncIterator] === 'function') {\n return scheduleAsyncIterable(input, scheduler);\n }\n }\n throw new TypeError((input !== null && typeof input || input) + ' is not observable');\n}\n//# sourceMappingURL=scheduled.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport function isInteropObservable(input) {\n return input && typeof input[Symbol_observable] === 'function';\n}\n//# sourceMappingURL=isInteropObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport function scheduleObservable(input, scheduler) {\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n sub.add(scheduler.schedule(function () {\n var observable = input[Symbol_observable]();\n sub.add(observable.subscribe({\n next: function (value) { sub.add(scheduler.schedule(function () { return subscriber.next(value); })); },\n error: function (err) { sub.add(scheduler.schedule(function () { return subscriber.error(err); })); },\n complete: function () { sub.add(scheduler.schedule(function () { return subscriber.complete(); })); },\n }));\n }));\n return sub;\n });\n}\n//# sourceMappingURL=scheduleObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function schedulePromise(input, scheduler) {\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n sub.add(scheduler.schedule(function () { return input.then(function (value) {\n sub.add(scheduler.schedule(function () {\n subscriber.next(value);\n sub.add(scheduler.schedule(function () { return subscriber.complete(); }));\n }));\n }, function (err) {\n sub.add(scheduler.schedule(function () { return subscriber.error(err); }));\n }); }));\n return sub;\n });\n}\n//# sourceMappingURL=schedulePromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function isIterable(input) {\n return input && typeof input[Symbol_iterator] === 'function';\n}\n//# sourceMappingURL=isIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function scheduleIterable(input, scheduler) {\n if (!input) {\n throw new Error('Iterable cannot be null');\n }\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n var iterator;\n sub.add(function () {\n if (iterator && typeof iterator.return === 'function') {\n iterator.return();\n }\n });\n sub.add(scheduler.schedule(function () {\n iterator = input[Symbol_iterator]();\n sub.add(scheduler.schedule(function () {\n if (subscriber.closed) {\n return;\n }\n var value;\n var done;\n try {\n var result = iterator.next();\n value = result.value;\n done = result.done;\n }\n catch (err) {\n subscriber.error(err);\n return;\n }\n if (done) {\n subscriber.complete();\n }\n else {\n subscriber.next(value);\n this.schedule();\n }\n }));\n }));\n return sub;\n });\n}\n//# sourceMappingURL=scheduleIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleAsyncIterable(input, scheduler) {\n if (!input) {\n throw new Error('Iterable cannot be null');\n }\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n sub.add(scheduler.schedule(function () {\n var iterator = input[Symbol.asyncIterator]();\n sub.add(scheduler.schedule(function () {\n var _this = this;\n iterator.next().then(function (result) {\n if (result.done) {\n subscriber.complete();\n }\n else {\n subscriber.next(result.value);\n _this.schedule();\n }\n });\n }));\n }));\n return sub;\n });\n}\n//# sourceMappingURL=scheduleAsyncIterable.js.map","import { subscribeToArray } from '../util/subscribeToArray';\nimport { subscribeToPromise } from '../util/subscribeToPromise';\nimport { subscribeToIterable } from '../util/subscribeToIterable';\nimport { subscribeToObservable } from '../util/subscribeToObservable';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isPromise } from '../util/isPromise';\nimport { isObject } from '../util/isObject';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { observable as Symbol_observable } from '../symbol/observable';\nimport { subscribeToAsyncIterable } from '../util/subscribeToAsyncIterable';\nimport { Observable } from '../Observable';\nimport { scheduled } from '../scheduled/scheduled';\nexport function from(input, scheduler) {\n if (!scheduler) {\n if (input instanceof Observable) {\n return input;\n }\n return new Observable(subscribeTo(input));\n }\n else {\n return scheduled(input, scheduler);\n }\n}\nfunction subscribeTo(result) {\n if (result && typeof result[Symbol_observable] === 'function') {\n return subscribeToObservable(result);\n }\n else if (isArrayLike(result)) {\n return subscribeToArray(result);\n }\n else if (isPromise(result)) {\n return subscribeToPromise(result);\n }\n else if (result && typeof result[Symbol_iterator] === 'function') {\n return subscribeToIterable(result);\n }\n else if (Symbol && Symbol.asyncIterator &&\n !!result && typeof result[Symbol.asyncIterator] === 'function') {\n return subscribeToAsyncIterable(result);\n }\n else {\n var value = isObject(result) ? 'an invalid object' : \"'\" + result + \"'\";\n var msg = \"You provided \" + value + \" where a stream was expected.\"\n + ' You can provide an Observable, Promise, Array, AsyncIterable, or Iterable.';\n throw new TypeError(msg);\n }\n}\n;\n//# sourceMappingURL=from.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport var subscribeToObservable = function (obj) { return function (subscriber) {\n var obs = obj[Symbol_observable]();\n if (typeof obs.subscribe !== 'function') {\n throw new TypeError('Provided object does not correctly implement Symbol.observable');\n }\n else {\n return obs.subscribe(subscriber);\n }\n}; };\n//# sourceMappingURL=subscribeToObservable.js.map","import { reportUnhandledError } from './reportUnhandledError';\nexport var subscribeToPromise = function (promise) { return function (subscriber) {\n promise.then(function (value) {\n if (!subscriber.closed) {\n subscriber.next(value);\n subscriber.complete();\n }\n }, function (err) { return subscriber.error(err); })\n .then(null, reportUnhandledError);\n return subscriber;\n}; };\n//# sourceMappingURL=subscribeToPromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport var subscribeToIterable = function (iterable) { return function (subscriber) {\n var iterator = iterable[Symbol_iterator]();\n do {\n var item = void 0;\n try {\n item = iterator.next();\n }\n catch (err) {\n subscriber.error(err);\n return;\n }\n if (item.done) {\n subscriber.complete();\n break;\n }\n subscriber.next(item.value);\n if (subscriber.closed) {\n break;\n }\n } while (true);\n if (typeof iterator.return === 'function') {\n subscriber.add(function () {\n if (iterator.return) {\n iterator.return();\n }\n });\n }\n return subscriber;\n}; };\n//# sourceMappingURL=subscribeToIterable.js.map","export function isObject(x) {\n return x !== null && typeof x === 'object';\n}\n//# sourceMappingURL=isObject.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function map(project, thisArg) {\n return operate(function (source, subscriber) {\n var index = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n subscriber.next(project.call(thisArg, value, index++));\n }));\n });\n}\n//# sourceMappingURL=map.js.map","export function identity(x) {\n return x;\n}\n//# sourceMappingURL=identity.js.map","export var observable = (function () { return typeof Symbol === 'function' && Symbol.observable || '@@observable'; })();\n//# sourceMappingURL=observable.js.map","export function isScheduler(value) {\n return value && typeof value.schedule === 'function';\n}\n//# sourceMappingURL=isScheduler.js.map","export function arrRemove(arr, item) {\n if (arr) {\n var index = arr.indexOf(item);\n 0 <= index && arr.splice(index, 1);\n }\n}\n//# sourceMappingURL=arrRemove.js.map","export var config = {\n onUnhandledError: null,\n Promise: undefined,\n useDeprecatedSynchronousErrorHandling: false,\n useDeprecatedNextContext: false,\n};\n//# sourceMappingURL=config.js.map","export function noop() { }\n//# sourceMappingURL=noop.js.map","import { from } from '../observable/from';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function switchMap(project, resultSelector) {\n return operate(function (source, subscriber) {\n var innerSubscriber = null;\n var index = 0;\n var isComplete = false;\n var checkComplete = function () { return isComplete && !innerSubscriber && subscriber.complete(); };\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n innerSubscriber === null || innerSubscriber === void 0 ? void 0 : innerSubscriber.unsubscribe();\n var innerIndex = 0;\n var outerIndex = index++;\n from(project(value, outerIndex)).subscribe((innerSubscriber = new OperatorSubscriber(subscriber, function (innerValue) { return subscriber.next(resultSelector ? resultSelector(value, innerValue, outerIndex, innerIndex++) : innerValue); }, undefined, function () {\n innerSubscriber = null;\n checkComplete();\n })));\n }, undefined, function () {\n isComplete = true;\n checkComplete();\n }));\n });\n}\n//# sourceMappingURL=switchMap.js.map","export function isFunction(x) {\n return typeof x === 'function';\n}\n//# sourceMappingURL=isFunction.js.map","import { Observable } from '../Observable';\nimport { subscribeToArray } from '../util/subscribeToArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function fromArray(input, scheduler) {\n if (!scheduler) {\n return new Observable(subscribeToArray(input));\n }\n else {\n return scheduleArray(input, scheduler);\n }\n}\n//# sourceMappingURL=fromArray.js.map","import { __extends } from \"tslib\";\nimport { isFunction } from './util/isFunction';\nimport { isSubscription, Subscription } from './Subscription';\nimport { config } from './config';\nimport { reportUnhandledError } from './util/reportUnhandledError';\nimport { noop } from './util/noop';\nvar Subscriber = (function (_super) {\n __extends(Subscriber, _super);\n function Subscriber(destination) {\n var _this = _super.call(this) || this;\n _this.isStopped = false;\n if (destination) {\n _this.destination = destination;\n if (isSubscription(destination)) {\n destination.add(_this);\n }\n }\n else {\n _this.destination = EMPTY_OBSERVER;\n }\n return _this;\n }\n Subscriber.create = function (next, error, complete) {\n return new SafeSubscriber(next, error, complete);\n };\n Subscriber.prototype.next = function (value) {\n if (!this.isStopped) {\n this._next(value);\n }\n };\n Subscriber.prototype.error = function (err) {\n if (!this.isStopped) {\n this.isStopped = true;\n this._error(err);\n }\n };\n Subscriber.prototype.complete = function () {\n if (!this.isStopped) {\n this.isStopped = true;\n this._complete();\n }\n };\n Subscriber.prototype.unsubscribe = function () {\n if (!this.closed) {\n this.isStopped = true;\n _super.prototype.unsubscribe.call(this);\n }\n };\n Subscriber.prototype._next = function (value) {\n this.destination.next(value);\n };\n Subscriber.prototype._error = function (err) {\n this.destination.error(err);\n this.unsubscribe();\n };\n Subscriber.prototype._complete = function () {\n this.destination.complete();\n this.unsubscribe();\n };\n return Subscriber;\n}(Subscription));\nexport { Subscriber };\nvar SafeSubscriber = (function (_super) {\n __extends(SafeSubscriber, _super);\n function SafeSubscriber(observerOrNext, error, complete) {\n var _this = _super.call(this) || this;\n _this.destination = EMPTY_OBSERVER;\n if ((observerOrNext || error || complete) && observerOrNext !== EMPTY_OBSERVER) {\n var next = void 0;\n if (isFunction(observerOrNext)) {\n next = observerOrNext;\n }\n else if (observerOrNext) {\n (next = observerOrNext.next, error = observerOrNext.error, complete = observerOrNext.complete);\n var context_1;\n if (_this && config.useDeprecatedNextContext) {\n context_1 = Object.create(observerOrNext);\n context_1.unsubscribe = function () { return _this.unsubscribe(); };\n }\n else {\n context_1 = observerOrNext;\n }\n next = next === null || next === void 0 ? void 0 : next.bind(context_1);\n error = error === null || error === void 0 ? void 0 : error.bind(context_1);\n complete = complete === null || complete === void 0 ? void 0 : complete.bind(context_1);\n }\n _this.destination = {\n next: next || noop,\n error: error || defaultErrorHandler,\n complete: complete || noop,\n };\n }\n return _this;\n }\n return SafeSubscriber;\n}(Subscriber));\nexport { SafeSubscriber };\nfunction defaultErrorHandler(err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n reportUnhandledError(err);\n}\nexport var EMPTY_OBSERVER = {\n closed: true,\n next: noop,\n error: defaultErrorHandler,\n complete: noop,\n};\n//# sourceMappingURL=Subscriber.js.map","import { Observable } from '../Observable';\nexport var EMPTY = new Observable(function (subscriber) { return subscriber.complete(); });\nexport function empty(scheduler) {\n return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\nfunction emptyScheduled(scheduler) {\n return new Observable(function (subscriber) { return scheduler.schedule(function () { return subscriber.complete(); }); });\n}\n//# sourceMappingURL=empty.js.map","import { map } from './map';\nimport { from } from '../observable/from';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function mergeMap(project, resultSelector, concurrent) {\n if (concurrent === void 0) { concurrent = Infinity; }\n if (typeof resultSelector === 'function') {\n return function (source) {\n return source.pipe(mergeMap(function (a, i) { return from(project(a, i)).pipe(map(function (b, ii) { return resultSelector(a, b, i, ii); })); }, concurrent));\n };\n }\n else if (typeof resultSelector === 'number') {\n concurrent = resultSelector;\n }\n return operate(function (source, subscriber) {\n var isComplete = false;\n var active = 0;\n var index = 0;\n var buffer = [];\n var checkComplete = function () { return isComplete && !active && subscriber.complete(); };\n var tryInnerSub = function () {\n while (active < concurrent && buffer.length > 0) {\n doInnerSub(buffer.shift());\n }\n };\n var doInnerSub = function (value) {\n active++;\n subscriber.add(from(project(value, index++)).subscribe(new OperatorSubscriber(subscriber, function (innerValue) { return subscriber.next(innerValue); }, undefined, function () {\n active--;\n buffer.length && tryInnerSub();\n checkComplete();\n })));\n };\n var outerSubs;\n outerSubs = source.subscribe(new OperatorSubscriber(subscriber, function (value) { return (active < concurrent ? doInnerSub(value) : buffer.push(value)); }, undefined, function () {\n isComplete = true;\n checkComplete();\n outerSubs === null || outerSubs === void 0 ? void 0 : outerSubs.unsubscribe();\n }));\n return function () {\n buffer = null;\n };\n });\n}\nexport var flatMap = mergeMap;\n//# sourceMappingURL=mergeMap.js.map","import { config } from '../config';\nexport function reportUnhandledError(err) {\n setTimeout(function () {\n var onUnhandledError = config.onUnhandledError;\n if (onUnhandledError) {\n onUnhandledError(err);\n }\n else {\n throw err;\n }\n });\n}\n//# sourceMappingURL=reportUnhandledError.js.map","export var isArrayLike = (function (x) { return x && typeof x.length === 'number' && typeof x !== 'function'; });\n//# sourceMappingURL=isArrayLike.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleArray(input, scheduler) {\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n var i = 0;\n sub.add(scheduler.schedule(function () {\n if (i === input.length) {\n subscriber.complete();\n return;\n }\n subscriber.next(input[i++]);\n if (!subscriber.closed) {\n sub.add(this.schedule());\n }\n }));\n return sub;\n });\n}\n//# sourceMappingURL=scheduleArray.js.map","import { createErrorClass } from './createErrorClass';\nexport var ObjectUnsubscribedError = createErrorClass(function (_super) {\n return function ObjectUnsubscribedError() {\n _super(this);\n this.message = 'object unsubscribed';\n };\n});\n//# sourceMappingURL=ObjectUnsubscribedError.js.map","import { __extends } from \"tslib\";\nimport { Observable } from './Observable';\nimport { Subscription, EMPTY_SUBSCRIPTION } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { arrRemove } from './util/arrRemove';\nvar Subject = (function (_super) {\n __extends(Subject, _super);\n function Subject() {\n var _this = _super.call(this) || this;\n _this.observers = [];\n _this.closed = false;\n _this.isStopped = false;\n _this.hasError = false;\n _this.thrownError = null;\n return _this;\n }\n Subject.prototype.lift = function (operator) {\n var subject = new AnonymousSubject(this, this);\n subject.operator = operator;\n return subject;\n };\n Subject.prototype._throwIfClosed = function () {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n };\n Subject.prototype.next = function (value) {\n this._throwIfClosed();\n if (!this.isStopped) {\n var copy = this.observers.slice();\n for (var _i = 0, copy_1 = copy; _i < copy_1.length; _i++) {\n var observer = copy_1[_i];\n observer.next(value);\n }\n }\n };\n Subject.prototype.error = function (err) {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.hasError = this.isStopped = true;\n this.thrownError = err;\n var observers = this.observers;\n while (observers.length) {\n observers.shift().error(err);\n }\n }\n };\n Subject.prototype.complete = function () {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.isStopped = true;\n var observers = this.observers;\n while (observers.length) {\n observers.shift().complete();\n }\n }\n };\n Subject.prototype.unsubscribe = function () {\n this.isStopped = this.closed = true;\n this.observers = null;\n };\n Subject.prototype._trySubscribe = function (subscriber) {\n this._throwIfClosed();\n return _super.prototype._trySubscribe.call(this, subscriber);\n };\n Subject.prototype._subscribe = function (subscriber) {\n this._throwIfClosed();\n this._checkFinalizedStatuses(subscriber);\n return this._innerSubscribe(subscriber);\n };\n Subject.prototype._innerSubscribe = function (subscriber) {\n var _this = this;\n var _a = this, hasError = _a.hasError, isStopped = _a.isStopped, observers = _a.observers;\n return hasError || isStopped\n ? EMPTY_SUBSCRIPTION\n : (observers.push(subscriber), new Subscription(function () { return arrRemove(_this.observers, subscriber); }));\n };\n Subject.prototype._checkFinalizedStatuses = function (subscriber) {\n var _a = this, hasError = _a.hasError, thrownError = _a.thrownError, isStopped = _a.isStopped;\n if (hasError) {\n subscriber.error(thrownError);\n }\n else if (isStopped) {\n subscriber.complete();\n }\n };\n Subject.prototype.asObservable = function () {\n var observable = new Observable();\n observable.source = this;\n return observable;\n };\n Subject.create = function (destination, source) {\n return new AnonymousSubject(destination, source);\n };\n return Subject;\n}(Observable));\nexport { Subject };\nvar AnonymousSubject = (function (_super) {\n __extends(AnonymousSubject, _super);\n function AnonymousSubject(destination, source) {\n var _this = _super.call(this) || this;\n _this.destination = destination;\n _this.source = source;\n return _this;\n }\n AnonymousSubject.prototype.next = function (value) {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.next) === null || _b === void 0 ? void 0 : _b.call(_a, value);\n };\n AnonymousSubject.prototype.error = function (err) {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.error) === null || _b === void 0 ? void 0 : _b.call(_a, err);\n };\n AnonymousSubject.prototype.complete = function () {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.complete) === null || _b === void 0 ? void 0 : _b.call(_a);\n };\n AnonymousSubject.prototype._subscribe = function (subscriber) {\n var _a, _b;\n return (_b = (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber)) !== null && _b !== void 0 ? _b : EMPTY_SUBSCRIPTION;\n };\n return AnonymousSubject;\n}(Subject));\nexport { AnonymousSubject };\n//# sourceMappingURL=Subject.js.map","import { identity } from './identity';\nexport function pipe() {\n var fns = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n fns[_i] = arguments[_i];\n }\n return pipeFromArray(fns);\n}\nexport function pipeFromArray(fns) {\n if (fns.length === 0) {\n return identity;\n }\n if (fns.length === 1) {\n return fns[0];\n }\n return function piped(input) {\n return fns.reduce(function (prev, fn) { return fn(prev); }, input);\n };\n}\n//# sourceMappingURL=pipe.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function distinctUntilChanged(compare, keySelector) {\n compare = compare !== null && compare !== void 0 ? compare : defaultCompare;\n return operate(function (source, subscriber) {\n var prev;\n var first = true;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n ((first && ((prev = value), 1)) || !compare(prev, (prev = keySelector ? keySelector(value) : value))) &&\n subscriber.next(value);\n first = false;\n }));\n });\n}\nfunction defaultCompare(a, b) {\n return a === b;\n}\n//# sourceMappingURL=distinctUntilChanged.js.map","export var dateTimestampProvider = {\n now: function () {\n return (dateTimestampProvider.delegate || Date).now();\n },\n delegate: undefined,\n};\n//# sourceMappingURL=dateTimestampProvider.js.map","export function createErrorClass(createImpl) {\n var _super = function (instance) {\n Error.call(instance);\n instance.name = instance.constructor.name;\n instance.stack = new Error().stack;\n };\n var ctorFunc = createImpl(_super);\n ctorFunc.prototype = Object.create(Error.prototype);\n ctorFunc.prototype.constructor = ctorFunc;\n return ctorFunc;\n}\n//# sourceMappingURL=createErrorClass.js.map","import { map } from \"../operators/map\";\nvar isArray = Array.isArray;\nfunction callOrApply(fn, args) {\n return isArray(args) ? fn.apply(void 0, args) : fn(args);\n}\nexport function mapOneOrManyArgs(fn) {\n return map(function (args) { return callOrApply(fn, args); });\n}\n//# sourceMappingURL=mapOneOrManyArgs.js.map","export var subscribeToArray = function (array) { return function (subscriber) {\n for (var i = 0, len = array.length; i < len && !subscriber.closed; i++) {\n subscriber.next(array[i]);\n }\n subscriber.complete();\n}; };\n//# sourceMappingURL=subscribeToArray.js.map","import { mergeMap } from './mergeMap';\nimport { identity } from '../util/identity';\nexport function mergeAll(concurrent) {\n if (concurrent === void 0) { concurrent = Infinity; }\n return mergeMap(identity, concurrent);\n}\n//# sourceMappingURL=mergeAll.js.map","import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\nexport var asyncScheduler = new AsyncScheduler(AsyncAction);\nexport var async = asyncScheduler;\n//# sourceMappingURL=async.js.map","import { __extends } from \"tslib\";\nimport { Subscription } from '../Subscription';\nvar Action = (function (_super) {\n __extends(Action, _super);\n function Action(scheduler, work) {\n return _super.call(this) || this;\n }\n Action.prototype.schedule = function (state, delay) {\n if (delay === void 0) { delay = 0; }\n return this;\n };\n return Action;\n}(Subscription));\nexport { Action };\n//# sourceMappingURL=Action.js.map","export var intervalProvider = {\n setInterval: function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var delegate = intervalProvider.delegate;\n return ((delegate === null || delegate === void 0 ? void 0 : delegate.setInterval) || setInterval).apply(void 0, args);\n },\n clearInterval: function (handle) {\n var delegate = intervalProvider.delegate;\n return ((delegate === null || delegate === void 0 ? void 0 : delegate.clearInterval) || clearInterval)(handle);\n },\n delegate: undefined,\n};\n//# sourceMappingURL=intervalProvider.js.map","import { __extends } from \"tslib\";\nimport { Action } from './Action';\nimport { intervalProvider } from './intervalProvider';\nimport { arrRemove } from '../util/arrRemove';\nvar AsyncAction = (function (_super) {\n __extends(AsyncAction, _super);\n function AsyncAction(scheduler, work) {\n var _this = _super.call(this, scheduler, work) || this;\n _this.scheduler = scheduler;\n _this.work = work;\n _this.pending = false;\n return _this;\n }\n AsyncAction.prototype.schedule = function (state, delay) {\n if (delay === void 0) { delay = 0; }\n if (this.closed) {\n return this;\n }\n this.state = state;\n var id = this.id;\n var scheduler = this.scheduler;\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, delay);\n }\n this.pending = true;\n this.delay = delay;\n this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n return this;\n };\n AsyncAction.prototype.requestAsyncId = function (scheduler, _id, delay) {\n if (delay === void 0) { delay = 0; }\n return intervalProvider.setInterval(scheduler.flush.bind(scheduler, this), delay);\n };\n AsyncAction.prototype.recycleAsyncId = function (_scheduler, id, delay) {\n if (delay === void 0) { delay = 0; }\n if (delay != null && this.delay === delay && this.pending === false) {\n return id;\n }\n intervalProvider.clearInterval(id);\n return undefined;\n };\n AsyncAction.prototype.execute = function (state, delay) {\n if (this.closed) {\n return new Error('executing a cancelled action');\n }\n this.pending = false;\n var error = this._execute(state, delay);\n if (error) {\n return error;\n }\n else if (this.pending === false && this.id != null) {\n this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n }\n };\n AsyncAction.prototype._execute = function (state, _delay) {\n var errored = false;\n var errorValue = undefined;\n try {\n this.work(state);\n }\n catch (e) {\n errored = true;\n errorValue = (!!e && e) || new Error(e);\n }\n if (errored) {\n this.unsubscribe();\n return errorValue;\n }\n };\n AsyncAction.prototype.unsubscribe = function () {\n if (!this.closed) {\n var _a = this, id = _a.id, scheduler = _a.scheduler;\n var actions = scheduler.actions;\n this.work = this.state = this.scheduler = null;\n this.pending = false;\n arrRemove(actions, this);\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, null);\n }\n this.delay = null;\n _super.prototype.unsubscribe.call(this);\n }\n };\n return AsyncAction;\n}(Action));\nexport { AsyncAction };\n//# sourceMappingURL=AsyncAction.js.map","import { dateTimestampProvider } from \"./scheduler/dateTimestampProvider\";\nvar Scheduler = (function () {\n function Scheduler(SchedulerAction, now) {\n if (now === void 0) { now = Scheduler.now; }\n this.SchedulerAction = SchedulerAction;\n this.now = now;\n }\n Scheduler.prototype.schedule = function (work, delay, state) {\n if (delay === void 0) { delay = 0; }\n return new this.SchedulerAction(this, work).schedule(state, delay);\n };\n Scheduler.now = dateTimestampProvider.now;\n return Scheduler;\n}());\nexport { Scheduler };\n//# sourceMappingURL=Scheduler.js.map","import { __extends } from \"tslib\";\nimport { Scheduler } from '../Scheduler';\nvar AsyncScheduler = (function (_super) {\n __extends(AsyncScheduler, _super);\n function AsyncScheduler(SchedulerAction, now) {\n if (now === void 0) { now = Scheduler.now; }\n var _this = _super.call(this, SchedulerAction, now) || this;\n _this.actions = [];\n _this.active = false;\n _this.scheduled = undefined;\n return _this;\n }\n AsyncScheduler.prototype.flush = function (action) {\n var actions = this.actions;\n if (this.active) {\n actions.push(action);\n return;\n }\n var error;\n this.active = true;\n do {\n if (error = action.execute(action.state, action.delay)) {\n break;\n }\n } while (action = actions.shift());\n this.active = false;\n if (error) {\n while (action = actions.shift()) {\n action.unsubscribe();\n }\n throw error;\n }\n };\n return AsyncScheduler;\n}(Scheduler));\nexport { AsyncScheduler };\n//# sourceMappingURL=AsyncScheduler.js.map","/*!\n * clipboard.js v2.0.6\n * https://clipboardjs.com/\n * \n * Licensed MIT © Zeno Rocha\n */\n(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"ClipboardJS\"] = factory();\n\telse\n\t\troot[\"ClipboardJS\"] = factory();\n})(this, function() {\nreturn /******/ (function(modules) { // webpackBootstrap\n/******/ \t// The module cache\n/******/ \tvar installedModules = {};\n/******/\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(installedModules[moduleId]) {\n/******/ \t\t\treturn installedModules[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = installedModules[moduleId] = {\n/******/ \t\t\ti: moduleId,\n/******/ \t\t\tl: false,\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/\n/******/ \t\t// Execute the module function\n/******/ \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n/******/\n/******/ \t\t// Flag the module as loaded\n/******/ \t\tmodule.l = true;\n/******/\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/\n/******/\n/******/ \t// expose the modules object (__webpack_modules__)\n/******/ \t__webpack_require__.m = modules;\n/******/\n/******/ \t// expose the module cache\n/******/ \t__webpack_require__.c = installedModules;\n/******/\n/******/ \t// define getter function for harmony exports\n/******/ \t__webpack_require__.d = function(exports, name, getter) {\n/******/ \t\tif(!__webpack_require__.o(exports, name)) {\n/******/ \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n/******/ \t\t}\n/******/ 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\t\t__webpack_require__.r(ns);\n/******/ \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n/******/ \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n/******/ \t\treturn ns;\n/******/ \t};\n/******/\n/******/ \t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t__webpack_require__.n = function(module) {\n/******/ \t\tvar getter = module && module.__esModule ?\n/******/ \t\t\tfunction getDefault() { return module['default']; } :\n/******/ \t\t\tfunction getModuleExports() { return module; };\n/******/ \t\t__webpack_require__.d(getter, 'a', getter);\n/******/ \t\treturn getter;\n/******/ \t};\n/******/\n/******/ \t// Object.prototype.hasOwnProperty.call\n/******/ \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n/******/\n/******/ \t// __webpack_public_path__\n/******/ \t__webpack_require__.p = \"\";\n/******/\n/******/\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(__webpack_require__.s = 6);\n/******/ })\n/************************************************************************/\n/******/ ([\n/* 0 */\n/***/ (function(module, exports) {\n\nfunction select(element) {\n var selectedText;\n\n if (element.nodeName === 'SELECT') {\n element.focus();\n\n selectedText = element.value;\n }\n else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n var isReadOnly = element.hasAttribute('readonly');\n\n if (!isReadOnly) {\n element.setAttribute('readonly', '');\n }\n\n element.select();\n element.setSelectionRange(0, element.value.length);\n\n if (!isReadOnly) {\n element.removeAttribute('readonly');\n }\n\n selectedText = element.value;\n }\n else {\n if (element.hasAttribute('contenteditable')) {\n element.focus();\n }\n\n var selection = window.getSelection();\n var range = document.createRange();\n\n range.selectNodeContents(element);\n selection.removeAllRanges();\n selection.addRange(range);\n\n selectedText = selection.toString();\n }\n\n return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports) {\n\nfunction E () {\n // Keep this empty so it's easier to inherit from\n // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n on: function (name, callback, ctx) {\n var e = this.e || (this.e = {});\n\n (e[name] || (e[name] = [])).push({\n fn: callback,\n ctx: ctx\n });\n\n return this;\n },\n\n once: function (name, callback, ctx) {\n var self = this;\n function listener () {\n self.off(name, listener);\n callback.apply(ctx, arguments);\n };\n\n listener._ = callback\n return this.on(name, listener, ctx);\n },\n\n emit: function (name) {\n var data = [].slice.call(arguments, 1);\n var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n var i = 0;\n var len = evtArr.length;\n\n for (i; i < len; i++) {\n evtArr[i].fn.apply(evtArr[i].ctx, data);\n }\n\n return this;\n },\n\n off: function (name, callback) {\n var e = this.e || (this.e = {});\n var evts = e[name];\n var liveEvents = [];\n\n if (evts && callback) {\n for (var i = 0, len = evts.length; i < len; i++) {\n if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n liveEvents.push(evts[i]);\n }\n }\n\n // Remove event from queue to prevent memory leak\n // Suggested by https://github.com/lazd\n // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n (liveEvents.length)\n ? e[name] = liveEvents\n : delete e[name];\n\n return this;\n }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar is = __webpack_require__(3);\nvar delegate = __webpack_require__(4);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n if (!target && !type && !callback) {\n throw new Error('Missing required arguments');\n }\n\n if (!is.string(type)) {\n throw new TypeError('Second argument must be a String');\n }\n\n if (!is.fn(callback)) {\n throw new TypeError('Third argument must be a Function');\n }\n\n if (is.node(target)) {\n return listenNode(target, type, callback);\n }\n else if (is.nodeList(target)) {\n return listenNodeList(target, type, callback);\n }\n else if (is.string(target)) {\n return listenSelector(target, type, callback);\n }\n else {\n throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n node.addEventListener(type, callback);\n\n return {\n destroy: function() {\n node.removeEventListener(type, callback);\n }\n }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.addEventListener(type, callback);\n });\n\n return {\n destroy: function() {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.removeEventListener(type, callback);\n });\n }\n }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n return value !== undefined\n && value instanceof HTMLElement\n && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return value !== undefined\n && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n && ('length' in value)\n && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n return typeof value === 'string'\n || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return type === '[object Function]';\n};\n\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar closest = __webpack_require__(5);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n var listenerFn = listener.apply(this, arguments);\n\n element.addEventListener(type, listenerFn, useCapture);\n\n return {\n destroy: function() {\n element.removeEventListener(type, listenerFn, useCapture);\n }\n }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n // Handle the regular Element usage\n if (typeof elements.addEventListener === 'function') {\n return _delegate.apply(null, arguments);\n }\n\n // Handle Element-less usage, it defaults to global delegation\n if (typeof type === 'function') {\n // Use `document` as the first parameter, then apply arguments\n // This is a short way to .unshift `arguments` without running into deoptimizations\n return _delegate.bind(null, document).apply(null, arguments);\n }\n\n // Handle Selector-based usage\n if (typeof elements === 'string') {\n elements = document.querySelectorAll(elements);\n }\n\n // Handle Array-like based usage\n return Array.prototype.map.call(elements, function (element) {\n return _delegate(element, selector, type, callback, useCapture);\n });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n return function(e) {\n e.delegateTarget = closest(e.target, selector);\n\n if (e.delegateTarget) {\n callback.call(element, e);\n }\n }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n var proto = Element.prototype;\n\n proto.matches = proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n if (typeof element.matches === 'function' &&\n element.matches(selector)) {\n return element;\n }\n element = element.parentNode;\n }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n\n// EXTERNAL MODULE: ./node_modules/select/src/select.js\nvar src_select = __webpack_require__(0);\nvar select_default = /*#__PURE__*/__webpack_require__.n(src_select);\n\n// CONCATENATED MODULE: ./src/clipboard-action.js\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n\n\n/**\n * Inner class which performs selection from either `text` or `target`\n * properties and then executes copy or cut operations.\n */\n\nvar clipboard_action_ClipboardAction = function () {\n /**\n * @param {Object} options\n */\n function ClipboardAction(options) {\n _classCallCheck(this, ClipboardAction);\n\n this.resolveOptions(options);\n this.initSelection();\n }\n\n /**\n * Defines base properties passed from constructor.\n * @param {Object} options\n */\n\n\n _createClass(ClipboardAction, [{\n key: 'resolveOptions',\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n this.action = options.action;\n this.container = options.container;\n this.emitter = options.emitter;\n this.target = options.target;\n this.text = options.text;\n this.trigger = options.trigger;\n\n this.selectedText = '';\n }\n\n /**\n * Decides which selection strategy is going to be applied based\n * on the existence of `text` and `target` properties.\n */\n\n }, {\n key: 'initSelection',\n value: function initSelection() {\n if (this.text) {\n this.selectFake();\n } else if (this.target) {\n this.selectTarget();\n }\n }\n\n /**\n * Creates a fake textarea element, sets its value from `text` property,\n * and makes a selection on it.\n */\n\n }, {\n key: 'selectFake',\n value: function selectFake() {\n var _this = this;\n\n var isRTL = document.documentElement.getAttribute('dir') == 'rtl';\n\n this.removeFake();\n\n this.fakeHandlerCallback = function () {\n return _this.removeFake();\n };\n this.fakeHandler = this.container.addEventListener('click', this.fakeHandlerCallback) || true;\n\n this.fakeElem = document.createElement('textarea');\n // Prevent zooming on iOS\n this.fakeElem.style.fontSize = '12pt';\n // Reset box model\n this.fakeElem.style.border = '0';\n this.fakeElem.style.padding = '0';\n this.fakeElem.style.margin = '0';\n // Move element out of screen horizontally\n this.fakeElem.style.position = 'absolute';\n this.fakeElem.style[isRTL ? 'right' : 'left'] = '-9999px';\n // Move element to the same position vertically\n var yPosition = window.pageYOffset || document.documentElement.scrollTop;\n this.fakeElem.style.top = yPosition + 'px';\n\n this.fakeElem.setAttribute('readonly', '');\n this.fakeElem.value = this.text;\n\n this.container.appendChild(this.fakeElem);\n\n this.selectedText = select_default()(this.fakeElem);\n this.copyText();\n }\n\n /**\n * Only removes the fake element after another click event, that way\n * a user can hit `Ctrl+C` to copy because selection still exists.\n */\n\n }, {\n key: 'removeFake',\n value: function removeFake() {\n if (this.fakeHandler) {\n this.container.removeEventListener('click', this.fakeHandlerCallback);\n this.fakeHandler = null;\n this.fakeHandlerCallback = null;\n }\n\n if (this.fakeElem) {\n this.container.removeChild(this.fakeElem);\n this.fakeElem = null;\n }\n }\n\n /**\n * Selects the content from element passed on `target` property.\n */\n\n }, {\n key: 'selectTarget',\n value: function selectTarget() {\n this.selectedText = select_default()(this.target);\n this.copyText();\n }\n\n /**\n * Executes the copy operation based on the current selection.\n */\n\n }, {\n key: 'copyText',\n value: function copyText() {\n var succeeded = void 0;\n\n try {\n succeeded = document.execCommand(this.action);\n } catch (err) {\n succeeded = false;\n }\n\n this.handleResult(succeeded);\n }\n\n /**\n * Fires an event based on the copy operation result.\n * @param {Boolean} succeeded\n */\n\n }, {\n key: 'handleResult',\n value: function handleResult(succeeded) {\n this.emitter.emit(succeeded ? 'success' : 'error', {\n action: this.action,\n text: this.selectedText,\n trigger: this.trigger,\n clearSelection: this.clearSelection.bind(this)\n });\n }\n\n /**\n * Moves focus away from `target` and back to the trigger, removes current selection.\n */\n\n }, {\n key: 'clearSelection',\n value: function clearSelection() {\n if (this.trigger) {\n this.trigger.focus();\n }\n document.activeElement.blur();\n window.getSelection().removeAllRanges();\n }\n\n /**\n * Sets the `action` to be performed which can be either 'copy' or 'cut'.\n * @param {String} action\n */\n\n }, {\n key: 'destroy',\n\n\n /**\n * Destroy lifecycle.\n */\n value: function destroy() {\n this.removeFake();\n }\n }, {\n key: 'action',\n set: function set() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'copy';\n\n this._action = action;\n\n if (this._action !== 'copy' && this._action !== 'cut') {\n throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n }\n }\n\n /**\n * Gets the `action` property.\n * @return {String}\n */\n ,\n get: function get() {\n return this._action;\n }\n\n /**\n * Sets the `target` property using an element\n * that will be have its content copied.\n * @param {Element} target\n */\n\n }, {\n key: 'target',\n set: function set(target) {\n if (target !== undefined) {\n if (target && (typeof target === 'undefined' ? 'undefined' : _typeof(target)) === 'object' && target.nodeType === 1) {\n if (this.action === 'copy' && target.hasAttribute('disabled')) {\n throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n }\n\n if (this.action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n }\n\n this._target = target;\n } else {\n throw new Error('Invalid \"target\" value, use a valid Element');\n }\n }\n }\n\n /**\n * Gets the `target` property.\n * @return {String|HTMLElement}\n */\n ,\n get: function get() {\n return this._target;\n }\n }]);\n\n return ClipboardAction;\n}();\n\n/* harmony default export */ var clipboard_action = (clipboard_action_ClipboardAction);\n// EXTERNAL MODULE: ./node_modules/tiny-emitter/index.js\nvar tiny_emitter = __webpack_require__(1);\nvar tiny_emitter_default = /*#__PURE__*/__webpack_require__.n(tiny_emitter);\n\n// EXTERNAL MODULE: ./node_modules/good-listener/src/listen.js\nvar listen = __webpack_require__(2);\nvar listen_default = /*#__PURE__*/__webpack_require__.n(listen);\n\n// CONCATENATED MODULE: ./src/clipboard.js\nvar clipboard_typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar clipboard_createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction clipboard_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }\n\n\n\n\n\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\nvar clipboard_Clipboard = function (_Emitter) {\n _inherits(Clipboard, _Emitter);\n\n /**\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n * @param {Object} options\n */\n function Clipboard(trigger, options) {\n clipboard_classCallCheck(this, Clipboard);\n\n var _this = _possibleConstructorReturn(this, (Clipboard.__proto__ || Object.getPrototypeOf(Clipboard)).call(this));\n\n _this.resolveOptions(options);\n _this.listenClick(trigger);\n return _this;\n }\n\n /**\n * Defines if attributes would be resolved using internal setter functions\n * or custom functions that were passed in the constructor.\n * @param {Object} options\n */\n\n\n clipboard_createClass(Clipboard, [{\n key: 'resolveOptions',\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n }\n\n /**\n * Adds a click event listener to the passed trigger.\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n */\n\n }, {\n key: 'listenClick',\n value: function listenClick(trigger) {\n var _this2 = this;\n\n this.listener = listen_default()(trigger, 'click', function (e) {\n return _this2.onClick(e);\n });\n }\n\n /**\n * Defines a new `ClipboardAction` on each click event.\n * @param {Event} e\n */\n\n }, {\n key: 'onClick',\n value: function onClick(e) {\n var trigger = e.delegateTarget || e.currentTarget;\n\n if (this.clipboardAction) {\n this.clipboardAction = null;\n }\n\n this.clipboardAction = new clipboard_action({\n action: this.action(trigger),\n target: this.target(trigger),\n text: this.text(trigger),\n container: this.container,\n trigger: trigger,\n emitter: this\n });\n }\n\n /**\n * Default `action` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: 'defaultAction',\n value: function defaultAction(trigger) {\n return getAttributeValue('action', trigger);\n }\n\n /**\n * Default `target` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: 'defaultTarget',\n value: function defaultTarget(trigger) {\n var selector = getAttributeValue('target', trigger);\n\n if (selector) {\n return document.querySelector(selector);\n }\n }\n\n /**\n * Returns the support of the given action, or all actions if no action is\n * given.\n * @param {String} [action]\n */\n\n }, {\n key: 'defaultText',\n\n\n /**\n * Default `text` lookup function.\n * @param {Element} trigger\n */\n value: function defaultText(trigger) {\n return getAttributeValue('text', trigger);\n }\n\n /**\n * Destroy lifecycle.\n */\n\n }, {\n key: 'destroy',\n value: function destroy() {\n this.listener.destroy();\n\n if (this.clipboardAction) {\n this.clipboardAction.destroy();\n this.clipboardAction = null;\n }\n }\n }], [{\n key: 'isSupported',\n value: function isSupported() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n\n var actions = typeof action === 'string' ? [action] : action;\n var support = !!document.queryCommandSupported;\n\n actions.forEach(function (action) {\n support = support && !!document.queryCommandSupported(action);\n });\n\n return support;\n }\n }]);\n\n return Clipboard;\n}(tiny_emitter_default.a);\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\n\nfunction getAttributeValue(suffix, element) {\n var attribute = 'data-clipboard-' + suffix;\n\n if (!element.hasAttribute(attribute)) {\n return;\n }\n\n return element.getAttribute(attribute);\n}\n\n/* harmony default export */ var clipboard = __webpack_exports__[\"default\"] = (clipboard_Clipboard);\n\n/***/ })\n/******/ ])[\"default\"];\n});","import { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function of() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var scheduler = args[args.length - 1];\n if (isScheduler(scheduler)) {\n args.pop();\n return scheduleArray(args, scheduler);\n }\n else {\n return fromArray(args);\n }\n}\n//# sourceMappingURL=of.js.map","var isArray = Array.isArray;\nvar getPrototypeOf = Object.getPrototypeOf, objectProto = Object.prototype, getKeys = Object.keys;\nexport function argsArgArrayOrObject(args) {\n if (args.length === 1) {\n var first_1 = args[0];\n if (isArray(first_1)) {\n return { args: first_1, keys: null };\n }\n if (isPOJO(first_1)) {\n var keys = getKeys(first_1);\n return {\n args: keys.map(function (key) { return first_1[key]; }),\n keys: keys,\n };\n }\n }\n return { args: args, keys: null };\n}\nfunction isPOJO(obj) {\n return obj && typeof obj === 'object' && getPrototypeOf(obj) === objectProto;\n}\n//# sourceMappingURL=argsArgArrayOrObject.js.map","import { __extends } from \"tslib\";\nimport { Observable } from '../Observable';\nimport { isScheduler } from '../util/isScheduler';\nimport { argsArgArrayOrObject } from '../util/argsArgArrayOrObject';\nimport { Subscriber } from '../Subscriber';\nimport { from } from './from';\nimport { identity } from '../util/identity';\nimport { mapOneOrManyArgs } from '../util/mapOneOrManyArgs';\nexport function combineLatest() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var resultSelector = undefined;\n var scheduler = undefined;\n if (isScheduler(args[args.length - 1])) {\n scheduler = args.pop();\n }\n if (typeof args[args.length - 1] === 'function') {\n resultSelector = args.pop();\n }\n var _a = argsArgArrayOrObject(args), observables = _a.args, keys = _a.keys;\n var result = new Observable(combineLatestInit(observables, scheduler, keys\n ?\n function (args) {\n var value = {};\n for (var i = 0; i < args.length; i++) {\n value[keys[i]] = args[i];\n }\n return value;\n }\n :\n identity));\n if (resultSelector) {\n return result.pipe(mapOneOrManyArgs(resultSelector));\n }\n return result;\n}\nvar CombineLatestSubscriber = (function (_super) {\n __extends(CombineLatestSubscriber, _super);\n function CombineLatestSubscriber(destination, _next, shouldComplete) {\n var _this = _super.call(this, destination) || this;\n _this._next = _next;\n _this.shouldComplete = shouldComplete;\n return _this;\n }\n CombineLatestSubscriber.prototype._complete = function () {\n if (this.shouldComplete()) {\n _super.prototype._complete.call(this);\n }\n else {\n this.unsubscribe();\n }\n };\n return CombineLatestSubscriber;\n}(Subscriber));\nexport function combineLatestInit(observables, scheduler, valueTransform) {\n if (scheduler === void 0) { scheduler = undefined; }\n if (valueTransform === void 0) { valueTransform = identity; }\n return function (subscriber) {\n var primarySubscribe = function () {\n var length = observables.length;\n var values = new Array(length);\n var active = length;\n var hasValues = observables.map(function () { return false; });\n var waitingForFirstValues = true;\n var emit = function () { return subscriber.next(valueTransform(values.slice())); };\n var _loop_1 = function (i) {\n var subscribe = function () {\n var source = from(observables[i], scheduler);\n source.subscribe(new CombineLatestSubscriber(subscriber, function (value) {\n values[i] = value;\n if (waitingForFirstValues) {\n hasValues[i] = true;\n waitingForFirstValues = !hasValues.every(identity);\n }\n if (!waitingForFirstValues) {\n emit();\n }\n }, function () { return --active === 0; }));\n };\n maybeSchedule(scheduler, subscribe, subscriber);\n };\n for (var i = 0; i < length; i++) {\n _loop_1(i);\n }\n };\n maybeSchedule(scheduler, primarySubscribe, subscriber);\n };\n}\nfunction maybeSchedule(scheduler, execute, subscription) {\n if (scheduler) {\n subscription.add(scheduler.schedule(execute));\n }\n else {\n execute();\n }\n}\n//# sourceMappingURL=combineLatest.js.map","import { __extends } from \"tslib\";\nimport { Subject } from './Subject';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\nvar ReplaySubject = (function (_super) {\n __extends(ReplaySubject, _super);\n function ReplaySubject(bufferSize, windowTime, timestampProvider) {\n if (bufferSize === void 0) { bufferSize = Infinity; }\n if (windowTime === void 0) { windowTime = Infinity; }\n if (timestampProvider === void 0) { timestampProvider = dateTimestampProvider; }\n var _this = _super.call(this) || this;\n _this.bufferSize = bufferSize;\n _this.windowTime = windowTime;\n _this.timestampProvider = timestampProvider;\n _this.buffer = [];\n _this.infiniteTimeWindow = true;\n _this.infiniteTimeWindow = windowTime === Infinity;\n _this.bufferSize = Math.max(1, bufferSize);\n _this.windowTime = Math.max(1, windowTime);\n return _this;\n }\n ReplaySubject.prototype.next = function (value) {\n var _a = this, isStopped = _a.isStopped, buffer = _a.buffer, infiniteTimeWindow = _a.infiniteTimeWindow, timestampProvider = _a.timestampProvider, windowTime = _a.windowTime;\n if (!isStopped) {\n buffer.push(value);\n !infiniteTimeWindow && buffer.push(timestampProvider.now() + windowTime);\n }\n this.trimBuffer();\n _super.prototype.next.call(this, value);\n };\n ReplaySubject.prototype._subscribe = function (subscriber) {\n this._throwIfClosed();\n this.trimBuffer();\n var subscription = this._innerSubscribe(subscriber);\n var _a = this, infiniteTimeWindow = _a.infiniteTimeWindow, buffer = _a.buffer;\n var copy = buffer.slice();\n for (var i = 0; i < copy.length && !subscriber.closed; i += infiniteTimeWindow ? 1 : 2) {\n subscriber.next(copy[i]);\n }\n this._checkFinalizedStatuses(subscriber);\n return subscription;\n };\n ReplaySubject.prototype.trimBuffer = function () {\n var _a = this, bufferSize = _a.bufferSize, timestampProvider = _a.timestampProvider, buffer = _a.buffer, infiniteTimeWindow = _a.infiniteTimeWindow;\n var adjustedBufferSize = (infiniteTimeWindow ? 1 : 2) * bufferSize;\n bufferSize < Infinity && adjustedBufferSize < buffer.length && buffer.splice(0, buffer.length - adjustedBufferSize);\n if (!infiniteTimeWindow) {\n var now = timestampProvider.now();\n var last = 0;\n for (var i = 1; i < buffer.length && buffer[i] <= now; i += 2) {\n last = i;\n }\n last && buffer.splice(0, last + 1);\n }\n };\n return ReplaySubject;\n}(Subject));\nexport { ReplaySubject };\n//# sourceMappingURL=ReplaySubject.js.map","/**\r\n * A collection of shims that provide minimal functionality of the ES6 collections.\r\n *\r\n * These implementations are not meant to be used outside of the ResizeObserver\r\n * modules as they cover only a limited range of use cases.\r\n */\r\n/* eslint-disable require-jsdoc, valid-jsdoc */\r\nvar MapShim = (function () {\r\n if (typeof Map !== 'undefined') {\r\n return Map;\r\n }\r\n /**\r\n * Returns index in provided array that matches the specified key.\r\n *\r\n * @param {Array} arr\r\n * @param {*} key\r\n * @returns {number}\r\n */\r\n function getIndex(arr, key) {\r\n var result = -1;\r\n arr.some(function (entry, index) {\r\n if (entry[0] === key) {\r\n result = index;\r\n return true;\r\n }\r\n return false;\r\n });\r\n return result;\r\n }\r\n return /** @class */ (function () {\r\n function class_1() {\r\n this.__entries__ = [];\r\n }\r\n Object.defineProperty(class_1.prototype, \"size\", {\r\n /**\r\n * @returns {boolean}\r\n */\r\n get: function () {\r\n return this.__entries__.length;\r\n },\r\n enumerable: true,\r\n configurable: true\r\n });\r\n /**\r\n * @param {*} key\r\n * @returns {*}\r\n */\r\n class_1.prototype.get = function (key) {\r\n var index = getIndex(this.__entries__, key);\r\n var entry = this.__entries__[index];\r\n return entry && entry[1];\r\n };\r\n /**\r\n * @param {*} key\r\n * @param {*} value\r\n * @returns {void}\r\n */\r\n class_1.prototype.set = function (key, value) {\r\n var index = getIndex(this.__entries__, key);\r\n if (~index) {\r\n this.__entries__[index][1] = value;\r\n }\r\n else {\r\n this.__entries__.push([key, value]);\r\n }\r\n };\r\n /**\r\n * @param {*} key\r\n * @returns {void}\r\n */\r\n class_1.prototype.delete = function (key) {\r\n var entries = this.__entries__;\r\n var index = getIndex(entries, key);\r\n if (~index) {\r\n entries.splice(index, 1);\r\n }\r\n };\r\n /**\r\n * @param {*} key\r\n * @returns {void}\r\n */\r\n class_1.prototype.has = function (key) {\r\n return !!~getIndex(this.__entries__, key);\r\n };\r\n /**\r\n * @returns {void}\r\n */\r\n class_1.prototype.clear = function () {\r\n this.__entries__.splice(0);\r\n };\r\n /**\r\n * @param {Function} callback\r\n * @param {*} [ctx=null]\r\n * @returns {void}\r\n */\r\n class_1.prototype.forEach = function (callback, ctx) {\r\n if (ctx === void 0) { ctx = null; }\r\n for (var _i = 0, _a = this.__entries__; _i < _a.length; _i++) {\r\n var entry = _a[_i];\r\n callback.call(ctx, entry[1], entry[0]);\r\n }\r\n };\r\n return class_1;\r\n }());\r\n})();\n\n/**\r\n * Detects whether window and document objects are available in current environment.\r\n */\r\nvar isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && window.document === document;\n\n// Returns global object of a current environment.\r\nvar global$1 = (function () {\r\n if (typeof global !== 'undefined' && global.Math === Math) {\r\n return global;\r\n }\r\n if (typeof self !== 'undefined' && self.Math === Math) {\r\n return self;\r\n }\r\n if (typeof window !== 'undefined' && window.Math === Math) {\r\n return window;\r\n }\r\n // eslint-disable-next-line no-new-func\r\n return Function('return this')();\r\n})();\n\n/**\r\n * A shim for the requestAnimationFrame which falls back to the setTimeout if\r\n * first one is not supported.\r\n *\r\n * @returns {number} Requests' identifier.\r\n */\r\nvar requestAnimationFrame$1 = (function () {\r\n if (typeof requestAnimationFrame === 'function') {\r\n // It's required to use a bounded function because IE sometimes throws\r\n // an \"Invalid calling object\" error if rAF is invoked without the global\r\n // object on the left hand side.\r\n return requestAnimationFrame.bind(global$1);\r\n }\r\n return function (callback) { return setTimeout(function () { return callback(Date.now()); }, 1000 / 60); };\r\n})();\n\n// Defines minimum timeout before adding a trailing call.\r\nvar trailingTimeout = 2;\r\n/**\r\n * Creates a wrapper function which ensures that provided callback will be\r\n * invoked only once during the specified delay period.\r\n *\r\n * @param {Function} callback - Function to be invoked after the delay period.\r\n * @param {number} delay - Delay after which to invoke callback.\r\n * @returns {Function}\r\n */\r\nfunction throttle (callback, delay) {\r\n var leadingCall = false, trailingCall = false, lastCallTime = 0;\r\n /**\r\n * Invokes the original callback function and schedules new invocation if\r\n * the \"proxy\" was called during current request.\r\n *\r\n * @returns {void}\r\n */\r\n function resolvePending() {\r\n if (leadingCall) {\r\n leadingCall = false;\r\n callback();\r\n }\r\n if (trailingCall) {\r\n proxy();\r\n }\r\n }\r\n /**\r\n * Callback invoked after the specified delay. It will further postpone\r\n * invocation of the original function delegating it to the\r\n * requestAnimationFrame.\r\n *\r\n * @returns {void}\r\n */\r\n function timeoutCallback() {\r\n requestAnimationFrame$1(resolvePending);\r\n }\r\n /**\r\n * Schedules invocation of the original function.\r\n *\r\n * @returns {void}\r\n */\r\n function proxy() {\r\n var timeStamp = Date.now();\r\n if (leadingCall) {\r\n // Reject immediately following calls.\r\n if (timeStamp - lastCallTime < trailingTimeout) {\r\n return;\r\n }\r\n // Schedule new call to be in invoked when the pending one is resolved.\r\n // This is important for \"transitions\" which never actually start\r\n // immediately so there is a chance that we might miss one if change\r\n // happens amids the pending invocation.\r\n trailingCall = true;\r\n }\r\n else {\r\n leadingCall = true;\r\n trailingCall = false;\r\n setTimeout(timeoutCallback, delay);\r\n }\r\n lastCallTime = timeStamp;\r\n }\r\n return proxy;\r\n}\n\n// Minimum delay before invoking the update of observers.\r\nvar REFRESH_DELAY = 20;\r\n// A list of substrings of CSS properties used to find transition events that\r\n// might affect dimensions of observed elements.\r\nvar transitionKeys = ['top', 'right', 'bottom', 'left', 'width', 'height', 'size', 'weight'];\r\n// Check if MutationObserver is available.\r\nvar mutationObserverSupported = typeof MutationObserver !== 'undefined';\r\n/**\r\n * Singleton controller class which handles updates of ResizeObserver instances.\r\n */\r\nvar ResizeObserverController = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserverController.\r\n *\r\n * @private\r\n */\r\n function ResizeObserverController() {\r\n /**\r\n * Indicates whether DOM listeners have been added.\r\n *\r\n * @private {boolean}\r\n */\r\n this.connected_ = false;\r\n /**\r\n * Tells that controller has subscribed for Mutation Events.\r\n *\r\n * @private {boolean}\r\n */\r\n this.mutationEventsAdded_ = false;\r\n /**\r\n * Keeps reference to the instance of MutationObserver.\r\n *\r\n * @private {MutationObserver}\r\n */\r\n this.mutationsObserver_ = null;\r\n /**\r\n * A list of connected observers.\r\n *\r\n * @private {Array}\r\n */\r\n this.observers_ = [];\r\n this.onTransitionEnd_ = this.onTransitionEnd_.bind(this);\r\n this.refresh = throttle(this.refresh.bind(this), REFRESH_DELAY);\r\n }\r\n /**\r\n * Adds observer to observers list.\r\n *\r\n * @param {ResizeObserverSPI} observer - Observer to be added.\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.addObserver = function (observer) {\r\n if (!~this.observers_.indexOf(observer)) {\r\n this.observers_.push(observer);\r\n }\r\n // Add listeners if they haven't been added yet.\r\n if (!this.connected_) {\r\n this.connect_();\r\n }\r\n };\r\n /**\r\n * Removes observer from observers list.\r\n *\r\n * @param {ResizeObserverSPI} observer - Observer to be removed.\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.removeObserver = function (observer) {\r\n var observers = this.observers_;\r\n var index = observers.indexOf(observer);\r\n // Remove observer if it's present in registry.\r\n if (~index) {\r\n observers.splice(index, 1);\r\n }\r\n // Remove listeners if controller has no connected observers.\r\n if (!observers.length && this.connected_) {\r\n this.disconnect_();\r\n }\r\n };\r\n /**\r\n * Invokes the update of observers. It will continue running updates insofar\r\n * it detects changes.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.refresh = function () {\r\n var changesDetected = this.updateObservers_();\r\n // Continue running updates if changes have been detected as there might\r\n // be future ones caused by CSS transitions.\r\n if (changesDetected) {\r\n this.refresh();\r\n }\r\n };\r\n /**\r\n * Updates every observer from observers list and notifies them of queued\r\n * entries.\r\n *\r\n * @private\r\n * @returns {boolean} Returns \"true\" if any observer has detected changes in\r\n * dimensions of it's elements.\r\n */\r\n ResizeObserverController.prototype.updateObservers_ = function () {\r\n // Collect observers that have active observations.\r\n var activeObservers = this.observers_.filter(function (observer) {\r\n return observer.gatherActive(), observer.hasActive();\r\n });\r\n // Deliver notifications in a separate cycle in order to avoid any\r\n // collisions between observers, e.g. when multiple instances of\r\n // ResizeObserver are tracking the same element and the callback of one\r\n // of them changes content dimensions of the observed target. Sometimes\r\n // this may result in notifications being blocked for the rest of observers.\r\n activeObservers.forEach(function (observer) { return observer.broadcastActive(); });\r\n return activeObservers.length > 0;\r\n };\r\n /**\r\n * Initializes DOM listeners.\r\n *\r\n * @private\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.connect_ = function () {\r\n // Do nothing if running in a non-browser environment or if listeners\r\n // have been already added.\r\n if (!isBrowser || this.connected_) {\r\n return;\r\n }\r\n // Subscription to the \"Transitionend\" event is used as a workaround for\r\n // delayed transitions. This way it's possible to capture at least the\r\n // final state of an element.\r\n document.addEventListener('transitionend', this.onTransitionEnd_);\r\n window.addEventListener('resize', this.refresh);\r\n if (mutationObserverSupported) {\r\n this.mutationsObserver_ = new MutationObserver(this.refresh);\r\n this.mutationsObserver_.observe(document, {\r\n attributes: true,\r\n childList: true,\r\n characterData: true,\r\n subtree: true\r\n });\r\n }\r\n else {\r\n document.addEventListener('DOMSubtreeModified', this.refresh);\r\n this.mutationEventsAdded_ = true;\r\n }\r\n this.connected_ = true;\r\n };\r\n /**\r\n * Removes DOM listeners.\r\n *\r\n * @private\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.disconnect_ = function () {\r\n // Do nothing if running in a non-browser environment or if listeners\r\n // have been already removed.\r\n if (!isBrowser || !this.connected_) {\r\n return;\r\n }\r\n document.removeEventListener('transitionend', this.onTransitionEnd_);\r\n window.removeEventListener('resize', this.refresh);\r\n if (this.mutationsObserver_) {\r\n this.mutationsObserver_.disconnect();\r\n }\r\n if (this.mutationEventsAdded_) {\r\n document.removeEventListener('DOMSubtreeModified', this.refresh);\r\n }\r\n this.mutationsObserver_ = null;\r\n this.mutationEventsAdded_ = false;\r\n this.connected_ = false;\r\n };\r\n /**\r\n * \"Transitionend\" event handler.\r\n *\r\n * @private\r\n * @param {TransitionEvent} event\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.onTransitionEnd_ = function (_a) {\r\n var _b = _a.propertyName, propertyName = _b === void 0 ? '' : _b;\r\n // Detect whether transition may affect dimensions of an element.\r\n var isReflowProperty = transitionKeys.some(function (key) {\r\n return !!~propertyName.indexOf(key);\r\n });\r\n if (isReflowProperty) {\r\n this.refresh();\r\n }\r\n };\r\n /**\r\n * Returns instance of the ResizeObserverController.\r\n *\r\n * @returns {ResizeObserverController}\r\n */\r\n ResizeObserverController.getInstance = function () {\r\n if (!this.instance_) {\r\n this.instance_ = new ResizeObserverController();\r\n }\r\n return this.instance_;\r\n };\r\n /**\r\n * Holds reference to the controller's instance.\r\n *\r\n * @private {ResizeObserverController}\r\n */\r\n ResizeObserverController.instance_ = null;\r\n return ResizeObserverController;\r\n}());\n\n/**\r\n * Defines non-writable/enumerable properties of the provided target object.\r\n *\r\n * @param {Object} target - Object for which to define properties.\r\n * @param {Object} props - Properties to be defined.\r\n * @returns {Object} Target object.\r\n */\r\nvar defineConfigurable = (function (target, props) {\r\n for (var _i = 0, _a = Object.keys(props); _i < _a.length; _i++) {\r\n var key = _a[_i];\r\n Object.defineProperty(target, key, {\r\n value: props[key],\r\n enumerable: false,\r\n writable: false,\r\n configurable: true\r\n });\r\n }\r\n return target;\r\n});\n\n/**\r\n * Returns the global object associated with provided element.\r\n *\r\n * @param {Object} target\r\n * @returns {Object}\r\n */\r\nvar getWindowOf = (function (target) {\r\n // Assume that the element is an instance of Node, which means that it\r\n // has the \"ownerDocument\" property from which we can retrieve a\r\n // corresponding global object.\r\n var ownerGlobal = target && target.ownerDocument && target.ownerDocument.defaultView;\r\n // Return the local global object if it's not possible extract one from\r\n // provided element.\r\n return ownerGlobal || global$1;\r\n});\n\n// Placeholder of an empty content rectangle.\r\nvar emptyRect = createRectInit(0, 0, 0, 0);\r\n/**\r\n * Converts provided string to a number.\r\n *\r\n * @param {number|string} value\r\n * @returns {number}\r\n */\r\nfunction toFloat(value) {\r\n return parseFloat(value) || 0;\r\n}\r\n/**\r\n * Extracts borders size from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @param {...string} positions - Borders positions (top, right, ...)\r\n * @returns {number}\r\n */\r\nfunction getBordersSize(styles) {\r\n var positions = [];\r\n for (var _i = 1; _i < arguments.length; _i++) {\r\n positions[_i - 1] = arguments[_i];\r\n }\r\n return positions.reduce(function (size, position) {\r\n var value = styles['border-' + position + '-width'];\r\n return size + toFloat(value);\r\n }, 0);\r\n}\r\n/**\r\n * Extracts paddings sizes from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @returns {Object} Paddings box.\r\n */\r\nfunction getPaddings(styles) {\r\n var positions = ['top', 'right', 'bottom', 'left'];\r\n var paddings = {};\r\n for (var _i = 0, positions_1 = positions; _i < positions_1.length; _i++) {\r\n var position = positions_1[_i];\r\n var value = styles['padding-' + position];\r\n paddings[position] = toFloat(value);\r\n }\r\n return paddings;\r\n}\r\n/**\r\n * Calculates content rectangle of provided SVG element.\r\n *\r\n * @param {SVGGraphicsElement} target - Element content rectangle of which needs\r\n * to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getSVGContentRect(target) {\r\n var bbox = target.getBBox();\r\n return createRectInit(0, 0, bbox.width, bbox.height);\r\n}\r\n/**\r\n * Calculates content rectangle of provided HTMLElement.\r\n *\r\n * @param {HTMLElement} target - Element for which to calculate the content rectangle.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getHTMLElementContentRect(target) {\r\n // Client width & height properties can't be\r\n // used exclusively as they provide rounded values.\r\n var clientWidth = target.clientWidth, clientHeight = target.clientHeight;\r\n // By this condition we can catch all non-replaced inline, hidden and\r\n // detached elements. Though elements with width & height properties less\r\n // than 0.5 will be discarded as well.\r\n //\r\n // Without it we would need to implement separate methods for each of\r\n // those cases and it's not possible to perform a precise and performance\r\n // effective test for hidden elements. E.g. even jQuery's ':visible' filter\r\n // gives wrong results for elements with width & height less than 0.5.\r\n if (!clientWidth && !clientHeight) {\r\n return emptyRect;\r\n }\r\n var styles = getWindowOf(target).getComputedStyle(target);\r\n var paddings = getPaddings(styles);\r\n var horizPad = paddings.left + paddings.right;\r\n var vertPad = paddings.top + paddings.bottom;\r\n // Computed styles of width & height are being used because they are the\r\n // only dimensions available to JS that contain non-rounded values. It could\r\n // be possible to utilize the getBoundingClientRect if only it's data wasn't\r\n // affected by CSS transformations let alone paddings, borders and scroll bars.\r\n var width = toFloat(styles.width), height = toFloat(styles.height);\r\n // Width & height include paddings and borders when the 'border-box' box\r\n // model is applied (except for IE).\r\n if (styles.boxSizing === 'border-box') {\r\n // Following conditions are required to handle Internet Explorer which\r\n // doesn't include paddings and borders to computed CSS dimensions.\r\n //\r\n // We can say that if CSS dimensions + paddings are equal to the \"client\"\r\n // properties then it's either IE, and thus we don't need to subtract\r\n // anything, or an element merely doesn't have paddings/borders styles.\r\n if (Math.round(width + horizPad) !== clientWidth) {\r\n width -= getBordersSize(styles, 'left', 'right') + horizPad;\r\n }\r\n if (Math.round(height + vertPad) !== clientHeight) {\r\n height -= getBordersSize(styles, 'top', 'bottom') + vertPad;\r\n }\r\n }\r\n // Following steps can't be applied to the document's root element as its\r\n // client[Width/Height] properties represent viewport area of the window.\r\n // Besides, it's as well not necessary as the itself neither has\r\n // rendered scroll bars nor it can be clipped.\r\n if (!isDocumentElement(target)) {\r\n // In some browsers (only in Firefox, actually) CSS width & height\r\n // include scroll bars size which can be removed at this step as scroll\r\n // bars are the only difference between rounded dimensions + paddings\r\n // and \"client\" properties, though that is not always true in Chrome.\r\n var vertScrollbar = Math.round(width + horizPad) - clientWidth;\r\n var horizScrollbar = Math.round(height + vertPad) - clientHeight;\r\n // Chrome has a rather weird rounding of \"client\" properties.\r\n // E.g. for an element with content width of 314.2px it sometimes gives\r\n // the client width of 315px and for the width of 314.7px it may give\r\n // 314px. And it doesn't happen all the time. So just ignore this delta\r\n // as a non-relevant.\r\n if (Math.abs(vertScrollbar) !== 1) {\r\n width -= vertScrollbar;\r\n }\r\n if (Math.abs(horizScrollbar) !== 1) {\r\n height -= horizScrollbar;\r\n }\r\n }\r\n return createRectInit(paddings.left, paddings.top, width, height);\r\n}\r\n/**\r\n * Checks whether provided element is an instance of the SVGGraphicsElement.\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nvar isSVGGraphicsElement = (function () {\r\n // Some browsers, namely IE and Edge, don't have the SVGGraphicsElement\r\n // interface.\r\n if (typeof SVGGraphicsElement !== 'undefined') {\r\n return function (target) { return target instanceof getWindowOf(target).SVGGraphicsElement; };\r\n }\r\n // If it's so, then check that element is at least an instance of the\r\n // SVGElement and that it has the \"getBBox\" method.\r\n // eslint-disable-next-line no-extra-parens\r\n return function (target) { return (target instanceof getWindowOf(target).SVGElement &&\r\n typeof target.getBBox === 'function'); };\r\n})();\r\n/**\r\n * Checks whether provided element is a document element ().\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nfunction isDocumentElement(target) {\r\n return target === getWindowOf(target).document.documentElement;\r\n}\r\n/**\r\n * Calculates an appropriate content rectangle for provided html or svg element.\r\n *\r\n * @param {Element} target - Element content rectangle of which needs to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getContentRect(target) {\r\n if (!isBrowser) {\r\n return emptyRect;\r\n }\r\n if (isSVGGraphicsElement(target)) {\r\n return getSVGContentRect(target);\r\n }\r\n return getHTMLElementContentRect(target);\r\n}\r\n/**\r\n * Creates rectangle with an interface of the DOMRectReadOnly.\r\n * Spec: https://drafts.fxtf.org/geometry/#domrectreadonly\r\n *\r\n * @param {DOMRectInit} rectInit - Object with rectangle's x/y coordinates and dimensions.\r\n * @returns {DOMRectReadOnly}\r\n */\r\nfunction createReadOnlyRect(_a) {\r\n var x = _a.x, y = _a.y, width = _a.width, height = _a.height;\r\n // If DOMRectReadOnly is available use it as a prototype for the rectangle.\r\n var Constr = typeof DOMRectReadOnly !== 'undefined' ? DOMRectReadOnly : Object;\r\n var rect = Object.create(Constr.prototype);\r\n // Rectangle's properties are not writable and non-enumerable.\r\n defineConfigurable(rect, {\r\n x: x, y: y, width: width, height: height,\r\n top: y,\r\n right: x + width,\r\n bottom: height + y,\r\n left: x\r\n });\r\n return rect;\r\n}\r\n/**\r\n * Creates DOMRectInit object based on the provided dimensions and the x/y coordinates.\r\n * Spec: https://drafts.fxtf.org/geometry/#dictdef-domrectinit\r\n *\r\n * @param {number} x - X coordinate.\r\n * @param {number} y - Y coordinate.\r\n * @param {number} width - Rectangle's width.\r\n * @param {number} height - Rectangle's height.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction createRectInit(x, y, width, height) {\r\n return { x: x, y: y, width: width, height: height };\r\n}\n\n/**\r\n * Class that is responsible for computations of the content rectangle of\r\n * provided DOM element and for keeping track of it's changes.\r\n */\r\nvar ResizeObservation = /** @class */ (function () {\r\n /**\r\n * Creates an instance of ResizeObservation.\r\n *\r\n * @param {Element} target - Element to be observed.\r\n */\r\n function ResizeObservation(target) {\r\n /**\r\n * Broadcasted width of content rectangle.\r\n *\r\n * @type {number}\r\n */\r\n this.broadcastWidth = 0;\r\n /**\r\n * Broadcasted height of content rectangle.\r\n *\r\n * @type {number}\r\n */\r\n this.broadcastHeight = 0;\r\n /**\r\n * Reference to the last observed content rectangle.\r\n *\r\n * @private {DOMRectInit}\r\n */\r\n this.contentRect_ = createRectInit(0, 0, 0, 0);\r\n this.target = target;\r\n }\r\n /**\r\n * Updates content rectangle and tells whether it's width or height properties\r\n * have changed since the last broadcast.\r\n *\r\n * @returns {boolean}\r\n */\r\n ResizeObservation.prototype.isActive = function () {\r\n var rect = getContentRect(this.target);\r\n this.contentRect_ = rect;\r\n return (rect.width !== this.broadcastWidth ||\r\n rect.height !== this.broadcastHeight);\r\n };\r\n /**\r\n * Updates 'broadcastWidth' and 'broadcastHeight' properties with a data\r\n * from the corresponding properties of the last observed content rectangle.\r\n *\r\n * @returns {DOMRectInit} Last observed content rectangle.\r\n */\r\n ResizeObservation.prototype.broadcastRect = function () {\r\n var rect = this.contentRect_;\r\n this.broadcastWidth = rect.width;\r\n this.broadcastHeight = rect.height;\r\n return rect;\r\n };\r\n return ResizeObservation;\r\n}());\n\nvar ResizeObserverEntry = /** @class */ (function () {\r\n /**\r\n * Creates an instance of ResizeObserverEntry.\r\n *\r\n * @param {Element} target - Element that is being observed.\r\n * @param {DOMRectInit} rectInit - Data of the element's content rectangle.\r\n */\r\n function ResizeObserverEntry(target, rectInit) {\r\n var contentRect = createReadOnlyRect(rectInit);\r\n // According to the specification following properties are not writable\r\n // and are also not enumerable in the native implementation.\r\n //\r\n // Property accessors are not being used as they'd require to define a\r\n // private WeakMap storage which may cause memory leaks in browsers that\r\n // don't support this type of collections.\r\n defineConfigurable(this, { target: target, contentRect: contentRect });\r\n }\r\n return ResizeObserverEntry;\r\n}());\n\nvar ResizeObserverSPI = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserver.\r\n *\r\n * @param {ResizeObserverCallback} callback - Callback function that is invoked\r\n * when one of the observed elements changes it's content dimensions.\r\n * @param {ResizeObserverController} controller - Controller instance which\r\n * is responsible for the updates of observer.\r\n * @param {ResizeObserver} callbackCtx - Reference to the public\r\n * ResizeObserver instance which will be passed to callback function.\r\n */\r\n function ResizeObserverSPI(callback, controller, callbackCtx) {\r\n /**\r\n * Collection of resize observations that have detected changes in dimensions\r\n * of elements.\r\n *\r\n * @private {Array}\r\n */\r\n this.activeObservations_ = [];\r\n /**\r\n * Registry of the ResizeObservation instances.\r\n *\r\n * @private {Map}\r\n */\r\n this.observations_ = new MapShim();\r\n if (typeof callback !== 'function') {\r\n throw new TypeError('The callback provided as parameter 1 is not a function.');\r\n }\r\n this.callback_ = callback;\r\n this.controller_ = controller;\r\n this.callbackCtx_ = callbackCtx;\r\n }\r\n /**\r\n * Starts observing provided element.\r\n *\r\n * @param {Element} target - Element to be observed.\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.observe = function (target) {\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n // Do nothing if current environment doesn't have the Element interface.\r\n if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n return;\r\n }\r\n if (!(target instanceof getWindowOf(target).Element)) {\r\n throw new TypeError('parameter 1 is not of type \"Element\".');\r\n }\r\n var observations = this.observations_;\r\n // Do nothing if element is already being observed.\r\n if (observations.has(target)) {\r\n return;\r\n }\r\n observations.set(target, new ResizeObservation(target));\r\n this.controller_.addObserver(this);\r\n // Force the update of observations.\r\n this.controller_.refresh();\r\n };\r\n /**\r\n * Stops observing provided element.\r\n *\r\n * @param {Element} target - Element to stop observing.\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.unobserve = function (target) {\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n // Do nothing if current environment doesn't have the Element interface.\r\n if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n return;\r\n }\r\n if (!(target instanceof getWindowOf(target).Element)) {\r\n throw new TypeError('parameter 1 is not of type \"Element\".');\r\n }\r\n var observations = this.observations_;\r\n // Do nothing if element is not being observed.\r\n if (!observations.has(target)) {\r\n return;\r\n }\r\n observations.delete(target);\r\n if (!observations.size) {\r\n this.controller_.removeObserver(this);\r\n }\r\n };\r\n /**\r\n * Stops observing all elements.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.disconnect = function () {\r\n this.clearActive();\r\n this.observations_.clear();\r\n this.controller_.removeObserver(this);\r\n };\r\n /**\r\n * Collects observation instances the associated element of which has changed\r\n * it's content rectangle.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.gatherActive = function () {\r\n var _this = this;\r\n this.clearActive();\r\n this.observations_.forEach(function (observation) {\r\n if (observation.isActive()) {\r\n _this.activeObservations_.push(observation);\r\n }\r\n });\r\n };\r\n /**\r\n * Invokes initial callback function with a list of ResizeObserverEntry\r\n * instances collected from active resize observations.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.broadcastActive = function () {\r\n // Do nothing if observer doesn't have active observations.\r\n if (!this.hasActive()) {\r\n return;\r\n }\r\n var ctx = this.callbackCtx_;\r\n // Create ResizeObserverEntry instance for every active observation.\r\n var entries = this.activeObservations_.map(function (observation) {\r\n return new ResizeObserverEntry(observation.target, observation.broadcastRect());\r\n });\r\n this.callback_.call(ctx, entries, ctx);\r\n this.clearActive();\r\n };\r\n /**\r\n * Clears the collection of active observations.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.clearActive = function () {\r\n this.activeObservations_.splice(0);\r\n };\r\n /**\r\n * Tells whether observer has active observations.\r\n *\r\n * @returns {boolean}\r\n */\r\n ResizeObserverSPI.prototype.hasActive = function () {\r\n return this.activeObservations_.length > 0;\r\n };\r\n return ResizeObserverSPI;\r\n}());\n\n// Registry of internal observers. If WeakMap is not available use current shim\r\n// for the Map collection as it has all required methods and because WeakMap\r\n// can't be fully polyfilled anyway.\r\nvar observers = typeof WeakMap !== 'undefined' ? new WeakMap() : new MapShim();\r\n/**\r\n * ResizeObserver API. Encapsulates the ResizeObserver SPI implementation\r\n * exposing only those methods and properties that are defined in the spec.\r\n */\r\nvar ResizeObserver = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserver.\r\n *\r\n * @param {ResizeObserverCallback} callback - Callback that is invoked when\r\n * dimensions of the observed elements change.\r\n */\r\n function ResizeObserver(callback) {\r\n if (!(this instanceof ResizeObserver)) {\r\n throw new TypeError('Cannot call a class as a function.');\r\n }\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n var controller = ResizeObserverController.getInstance();\r\n var observer = new ResizeObserverSPI(callback, controller, this);\r\n observers.set(this, observer);\r\n }\r\n return ResizeObserver;\r\n}());\r\n// Expose public methods of ResizeObserver.\r\n[\r\n 'observe',\r\n 'unobserve',\r\n 'disconnect'\r\n].forEach(function (method) {\r\n ResizeObserver.prototype[method] = function () {\r\n var _a;\r\n return (_a = observers.get(this))[method].apply(_a, arguments);\r\n };\r\n});\n\nvar index = (function () {\r\n // Export existing implementation if available.\r\n if (typeof global$1.ResizeObserver !== 'undefined') {\r\n return global$1.ResizeObserver;\r\n }\r\n return ResizeObserver;\r\n})();\n\nexport default index;\n","import { Observable } from '../Observable';\nimport { from } from './from';\nexport function defer(observableFactory) {\n return new Observable(function (subscriber) {\n var input;\n try {\n input = observableFactory();\n }\n catch (err) {\n subscriber.error(err);\n return undefined;\n }\n var source = from(input);\n return source.subscribe(subscriber);\n });\n}\n//# sourceMappingURL=defer.js.map","/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n","import { operate } from '../util/lift';\nexport function finalize(callback) {\n return operate(function (source, subscriber) {\n source.subscribe(subscriber);\n subscriber.add(callback);\n });\n}\n//# sourceMappingURL=finalize.js.map","import { isFunction } from '../util/isFunction';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { identity } from '../util/identity';\nexport function tap(observerOrNext, error, complete) {\n var tapObserver = isFunction(observerOrNext) || error || complete ? { next: observerOrNext, error: error, complete: complete } : observerOrNext;\n return tapObserver\n ? operate(function (source, subscriber) {\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n var _a;\n (_a = tapObserver.next) === null || _a === void 0 ? void 0 : _a.call(tapObserver, value);\n subscriber.next(value);\n }, function (err) {\n var _a;\n (_a = tapObserver.error) === null || _a === void 0 ? void 0 : _a.call(tapObserver, err);\n subscriber.error(err);\n }, function () {\n var _a;\n (_a = tapObserver.complete) === null || _a === void 0 ? void 0 : _a.call(tapObserver);\n subscriber.complete();\n }));\n })\n :\n identity;\n}\n//# sourceMappingURL=tap.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function scan(accumulator, seed) {\n var hasSeed = arguments.length >= 2;\n return operate(function (source, subscriber) {\n var hasState = hasSeed;\n var state = seed;\n var index = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n var i = index++;\n subscriber.next((state = hasState\n ?\n accumulator(state, value, i)\n :\n ((hasState = true), value)));\n }));\n });\n}\n//# sourceMappingURL=scan.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function observeOn(scheduler, delay) {\n if (delay === void 0) { delay = 0; }\n return operate(function (source, subscriber) {\n source.subscribe(new OperatorSubscriber(subscriber, function (value) { return subscriber.add(scheduler.schedule(function () { return subscriber.next(value); }, delay)); }, function (err) { return subscriber.add(scheduler.schedule(function () { return subscriber.error(err); }, delay)); }, function () { return subscriber.add(scheduler.schedule(function () { return subscriber.complete(); }, delay)); }));\n });\n}\n//# sourceMappingURL=observeOn.js.map","import { Subscription } from '../Subscription';\nexport var animationFrameProvider = {\n schedule: function (callback) {\n var request = requestAnimationFrame;\n var cancel = cancelAnimationFrame;\n var delegate = animationFrameProvider.delegate;\n if (delegate) {\n request = delegate.requestAnimationFrame;\n cancel = delegate.cancelAnimationFrame;\n }\n var handle = request(function (timestamp) {\n cancel = undefined;\n callback(timestamp);\n });\n return new Subscription(function () { return cancel === null || cancel === void 0 ? void 0 : cancel(handle); });\n },\n requestAnimationFrame: function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var delegate = animationFrameProvider.delegate;\n return ((delegate === null || delegate === void 0 ? void 0 : delegate.requestAnimationFrame) || requestAnimationFrame).apply(void 0, args);\n },\n cancelAnimationFrame: function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var delegate = animationFrameProvider.delegate;\n return ((delegate === null || delegate === void 0 ? void 0 : delegate.cancelAnimationFrame) || cancelAnimationFrame).apply(void 0, args);\n },\n delegate: undefined,\n};\n//# sourceMappingURL=animationFrameProvider.js.map","import { __extends } from \"tslib\";\nimport { AsyncAction } from './AsyncAction';\nimport { animationFrameProvider } from './animationFrameProvider';\nvar AnimationFrameAction = (function (_super) {\n __extends(AnimationFrameAction, _super);\n function AnimationFrameAction(scheduler, work) {\n var _this = _super.call(this, scheduler, work) || this;\n _this.scheduler = scheduler;\n _this.work = work;\n return _this;\n }\n AnimationFrameAction.prototype.requestAsyncId = function (scheduler, id, delay) {\n if (delay === void 0) { delay = 0; }\n if (delay !== null && delay > 0) {\n return _super.prototype.requestAsyncId.call(this, scheduler, id, delay);\n }\n scheduler.actions.push(this);\n return scheduler.scheduled || (scheduler.scheduled = animationFrameProvider.requestAnimationFrame(function () { return scheduler.flush(undefined); }));\n };\n AnimationFrameAction.prototype.recycleAsyncId = function (scheduler, id, delay) {\n if (delay === void 0) { delay = 0; }\n if ((delay != null && delay > 0) || (delay == null && this.delay > 0)) {\n return _super.prototype.recycleAsyncId.call(this, scheduler, id, delay);\n }\n if (scheduler.actions.length === 0) {\n animationFrameProvider.cancelAnimationFrame(id);\n scheduler.scheduled = undefined;\n }\n return undefined;\n };\n return AnimationFrameAction;\n}(AsyncAction));\nexport { AnimationFrameAction };\n//# sourceMappingURL=AnimationFrameAction.js.map","import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nexport var animationFrameScheduler = new AnimationFrameScheduler(AnimationFrameAction);\nexport var animationFrame = animationFrameScheduler;\n//# sourceMappingURL=animationFrame.js.map","import { __extends } from \"tslib\";\nimport { AsyncScheduler } from './AsyncScheduler';\nvar AnimationFrameScheduler = (function (_super) {\n __extends(AnimationFrameScheduler, _super);\n function AnimationFrameScheduler() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n AnimationFrameScheduler.prototype.flush = function (action) {\n this.active = true;\n this.scheduled = undefined;\n var actions = this.actions;\n var error;\n var index = -1;\n action = action || actions.shift();\n var count = actions.length;\n do {\n if (error = action.execute(action.state, action.delay)) {\n break;\n }\n } while (++index < count && (action = actions.shift()));\n this.active = false;\n if (error) {\n while (++index < count && (action = actions.shift())) {\n action.unsubscribe();\n }\n throw error;\n }\n };\n return AnimationFrameScheduler;\n}(AsyncScheduler));\nexport { AnimationFrameScheduler };\n//# sourceMappingURL=AnimationFrameScheduler.js.map","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n (factory());\n}(this, (function () { 'use strict';\n\n /**\n * Applies the :focus-visible polyfill at the given scope.\n * A scope in this case is either the top-level Document or a Shadow Root.\n *\n * @param {(Document|ShadowRoot)} scope\n * @see https://github.com/WICG/focus-visible\n */\n function applyFocusVisiblePolyfill(scope) {\n var hadKeyboardEvent = true;\n var hadFocusVisibleRecently = false;\n var hadFocusVisibleRecentlyTimeout = null;\n\n var inputTypesWhitelist = {\n text: true,\n search: true,\n url: true,\n tel: true,\n email: true,\n password: true,\n number: true,\n date: true,\n month: true,\n week: true,\n time: true,\n datetime: true,\n 'datetime-local': true\n };\n\n /**\n * Helper function for legacy browsers and iframes which sometimes focus\n * elements like document, body, and non-interactive SVG.\n * @param {Element} el\n */\n function isValidFocusTarget(el) {\n if (\n el &&\n el !== document &&\n el.nodeName !== 'HTML' &&\n el.nodeName !== 'BODY' &&\n 'classList' in el &&\n 'contains' in el.classList\n ) {\n return true;\n }\n return false;\n }\n\n /**\n * Computes whether the given element should automatically trigger the\n * `focus-visible` class being added, i.e. whether it should always match\n * `:focus-visible` when focused.\n * @param {Element} el\n * @return {boolean}\n */\n function focusTriggersKeyboardModality(el) {\n var type = el.type;\n var tagName = el.tagName;\n\n if (tagName === 'INPUT' && inputTypesWhitelist[type] && !el.readOnly) {\n return true;\n }\n\n if (tagName === 'TEXTAREA' && !el.readOnly) {\n return true;\n }\n\n if (el.isContentEditable) {\n return true;\n }\n\n return false;\n }\n\n /**\n * Add the `focus-visible` class to the given element if it was not added by\n * the author.\n * @param {Element} el\n */\n function addFocusVisibleClass(el) {\n if (el.classList.contains('focus-visible')) {\n return;\n }\n el.classList.add('focus-visible');\n el.setAttribute('data-focus-visible-added', '');\n }\n\n /**\n * Remove the `focus-visible` class from the given element if it was not\n * originally added by the author.\n * @param {Element} el\n */\n function removeFocusVisibleClass(el) {\n if (!el.hasAttribute('data-focus-visible-added')) {\n return;\n }\n el.classList.remove('focus-visible');\n el.removeAttribute('data-focus-visible-added');\n }\n\n /**\n * If the most recent user interaction was via the keyboard;\n * and the key press did not include a meta, alt/option, or control key;\n * then the modality is keyboard. Otherwise, the modality is not keyboard.\n * Apply `focus-visible` to any current active element and keep track\n * of our keyboard modality state with `hadKeyboardEvent`.\n * @param {KeyboardEvent} e\n */\n function onKeyDown(e) {\n if (e.metaKey || e.altKey || e.ctrlKey) {\n return;\n }\n\n if (isValidFocusTarget(scope.activeElement)) {\n addFocusVisibleClass(scope.activeElement);\n }\n\n hadKeyboardEvent = true;\n }\n\n /**\n * If at any point a user clicks with a pointing device, ensure that we change\n * the modality away from keyboard.\n * This avoids the situation where a user presses a key on an already focused\n * element, and then clicks on a different element, focusing it with a\n * pointing device, while we still think we're in keyboard modality.\n * @param {Event} e\n */\n function onPointerDown(e) {\n hadKeyboardEvent = false;\n }\n\n /**\n * On `focus`, add the `focus-visible` class to the target if:\n * - the target received focus as a result of keyboard navigation, or\n * - the event target is an element that will likely require interaction\n * via the keyboard (e.g. a text box)\n * @param {Event} e\n */\n function onFocus(e) {\n // Prevent IE from focusing the document or HTML element.\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (hadKeyboardEvent || focusTriggersKeyboardModality(e.target)) {\n addFocusVisibleClass(e.target);\n }\n }\n\n /**\n * On `blur`, remove the `focus-visible` class from the target.\n * @param {Event} e\n */\n function onBlur(e) {\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (\n e.target.classList.contains('focus-visible') ||\n e.target.hasAttribute('data-focus-visible-added')\n ) {\n // To detect a tab/window switch, we look for a blur event followed\n // rapidly by a visibility change.\n // If we don't see a visibility change within 100ms, it's probably a\n // regular focus change.\n hadFocusVisibleRecently = true;\n window.clearTimeout(hadFocusVisibleRecentlyTimeout);\n hadFocusVisibleRecentlyTimeout = window.setTimeout(function() {\n hadFocusVisibleRecently = false;\n }, 100);\n removeFocusVisibleClass(e.target);\n }\n }\n\n /**\n * If the user changes tabs, keep track of whether or not the previously\n * focused element had .focus-visible.\n * @param {Event} e\n */\n function onVisibilityChange(e) {\n if (document.visibilityState === 'hidden') {\n // If the tab becomes active again, the browser will handle calling focus\n // on the element (Safari actually calls it twice).\n // If this tab change caused a blur on an element with focus-visible,\n // re-apply the class when the user switches back to the tab.\n if (hadFocusVisibleRecently) {\n hadKeyboardEvent = true;\n }\n addInitialPointerMoveListeners();\n }\n }\n\n /**\n * Add a group of listeners to detect usage of any pointing devices.\n * These listeners will be added when the polyfill first loads, and anytime\n * the window is blurred, so that they are active when the window regains\n * focus.\n */\n function addInitialPointerMoveListeners() {\n document.addEventListener('mousemove', onInitialPointerMove);\n document.addEventListener('mousedown', onInitialPointerMove);\n document.addEventListener('mouseup', onInitialPointerMove);\n document.addEventListener('pointermove', onInitialPointerMove);\n document.addEventListener('pointerdown', onInitialPointerMove);\n document.addEventListener('pointerup', onInitialPointerMove);\n document.addEventListener('touchmove', onInitialPointerMove);\n document.addEventListener('touchstart', onInitialPointerMove);\n document.addEventListener('touchend', onInitialPointerMove);\n }\n\n function removeInitialPointerMoveListeners() {\n document.removeEventListener('mousemove', onInitialPointerMove);\n document.removeEventListener('mousedown', onInitialPointerMove);\n document.removeEventListener('mouseup', onInitialPointerMove);\n document.removeEventListener('pointermove', onInitialPointerMove);\n document.removeEventListener('pointerdown', onInitialPointerMove);\n document.removeEventListener('pointerup', onInitialPointerMove);\n document.removeEventListener('touchmove', onInitialPointerMove);\n document.removeEventListener('touchstart', onInitialPointerMove);\n document.removeEventListener('touchend', onInitialPointerMove);\n }\n\n /**\n * When the polfyill first loads, assume the user is in keyboard modality.\n * If any event is received from a pointing device (e.g. mouse, pointer,\n * touch), turn off keyboard modality.\n * This accounts for situations where focus enters the page from the URL bar.\n * @param {Event} e\n */\n function onInitialPointerMove(e) {\n // Work around a Safari quirk that fires a mousemove on whenever the\n // window blurs, even if you're tabbing out of the page. ¯\\_(ツ)_/¯\n if (e.target.nodeName && e.target.nodeName.toLowerCase() === 'html') {\n return;\n }\n\n hadKeyboardEvent = false;\n removeInitialPointerMoveListeners();\n }\n\n // For some kinds of state, we are interested in changes at the global scope\n // only. For example, global pointer input, global key presses and global\n // visibility change should affect the state at every scope:\n document.addEventListener('keydown', onKeyDown, true);\n document.addEventListener('mousedown', onPointerDown, true);\n document.addEventListener('pointerdown', onPointerDown, true);\n document.addEventListener('touchstart', onPointerDown, true);\n document.addEventListener('visibilitychange', onVisibilityChange, true);\n\n addInitialPointerMoveListeners();\n\n // For focus and blur, we specifically care about state changes in the local\n // scope. This is because focus / blur events that originate from within a\n // shadow root are not re-dispatched from the host element if it was already\n // the active element in its own scope:\n scope.addEventListener('focus', onFocus, true);\n scope.addEventListener('blur', onBlur, true);\n\n // We detect that a node is a ShadowRoot by ensuring that it is a\n // DocumentFragment and also has a host property. This check covers native\n // implementation and polyfill implementation transparently. If we only cared\n // about the native implementation, we could just check if the scope was\n // an instance of a ShadowRoot.\n if (scope.nodeType === Node.DOCUMENT_FRAGMENT_NODE && scope.host) {\n // Since a ShadowRoot is a special kind of DocumentFragment, it does not\n // have a root element to add a class to. So, we add this attribute to the\n // host element instead:\n scope.host.setAttribute('data-js-focus-visible', '');\n } else if (scope.nodeType === Node.DOCUMENT_NODE) {\n document.documentElement.classList.add('js-focus-visible');\n document.documentElement.setAttribute('data-js-focus-visible', '');\n }\n }\n\n // It is important to wrap all references to global window and document in\n // these checks to support server-side rendering use cases\n // @see https://github.com/WICG/focus-visible/issues/199\n if (typeof window !== 'undefined' && typeof document !== 'undefined') {\n // Make the polyfill helper globally available. This can be used as a signal\n // to interested libraries that wish to coordinate with the polyfill for e.g.,\n // applying the polyfill to a shadow root:\n window.applyFocusVisiblePolyfill = applyFocusVisiblePolyfill;\n\n // Notify interested libraries of the polyfill's presence, in case the\n // polyfill was loaded lazily:\n var event;\n\n try {\n event = new CustomEvent('focus-visible-polyfill-ready');\n } catch (error) {\n // IE11 does not support using CustomEvent as a constructor directly:\n event = document.createEvent('CustomEvent');\n event.initCustomEvent('focus-visible-polyfill-ready', false, false, {});\n }\n\n window.dispatchEvent(event);\n }\n\n if (typeof document !== 'undefined') {\n // Apply the polyfill to the global document, so that no JavaScript\n // coordination is required to use the polyfill in the top-level document:\n applyFocusVisiblePolyfill(document);\n }\n\n})));\n","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || new Function(\"return this\")();\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","import { ReplaySubject } from '../ReplaySubject';\nimport { operate } from '../util/lift';\nexport function shareReplay(configOrBufferSize, windowTime, scheduler) {\n var config;\n if (configOrBufferSize && typeof configOrBufferSize === 'object') {\n config = configOrBufferSize;\n }\n else {\n config = {\n bufferSize: configOrBufferSize,\n windowTime: windowTime,\n refCount: false,\n scheduler: scheduler\n };\n }\n return operate(shareReplayOperator(config));\n}\nfunction shareReplayOperator(_a) {\n var _b = _a.bufferSize, bufferSize = _b === void 0 ? Infinity : _b, _c = _a.windowTime, windowTime = _c === void 0 ? Infinity : _c, useRefCount = _a.refCount, scheduler = _a.scheduler;\n var subject;\n var refCount = 0;\n var subscription;\n return function (source, subscriber) {\n refCount++;\n var innerSub;\n if (!subject) {\n subject = new ReplaySubject(bufferSize, windowTime, scheduler);\n innerSub = subject.subscribe(subscriber);\n subscription = source.subscribe({\n next: function (value) { subject.next(value); },\n error: function (err) {\n var dest = subject;\n subscription = undefined;\n subject = undefined;\n dest.error(err);\n },\n complete: function () {\n subscription = undefined;\n subject.complete();\n },\n });\n if (subscription.closed) {\n subscription = undefined;\n }\n }\n else {\n innerSub = subject.subscribe(subscriber);\n }\n subscriber.add(function () {\n refCount--;\n innerSub.unsubscribe();\n if (useRefCount && refCount === 0 && subscription) {\n subscription.unsubscribe();\n subscription = undefined;\n subject = undefined;\n }\n });\n };\n}\n//# sourceMappingURL=shareReplay.js.map","import { distinctUntilChanged } from './distinctUntilChanged';\nexport function distinctUntilKeyChanged(key, compare) {\n return distinctUntilChanged(function (x, y) { return compare ? compare(x[key], y[key]) : x[key] === y[key]; });\n}\n//# sourceMappingURL=distinctUntilKeyChanged.js.map","import { __spreadArrays } from \"tslib\";\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { from } from '../observable/from';\nimport { identity } from '../util/identity';\nimport { noop } from '../util/noop';\nexport function withLatestFrom() {\n var inputs = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n inputs[_i] = arguments[_i];\n }\n var project;\n if (typeof inputs[inputs.length - 1] === 'function') {\n project = inputs.pop();\n }\n return operate(function (source, subscriber) {\n var len = inputs.length;\n var otherValues = new Array(len);\n var hasValue = inputs.map(function () { return false; });\n var ready = false;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n if (ready) {\n var values = __spreadArrays([value], otherValues);\n subscriber.next(project ? project.apply(void 0, values) : values);\n }\n }));\n var _loop_1 = function (i) {\n var input = inputs[i];\n var otherSource = void 0;\n try {\n otherSource = from(input);\n }\n catch (err) {\n subscriber.error(err);\n return { value: void 0 };\n }\n otherSource.subscribe(new OperatorSubscriber(subscriber, function (value) {\n otherValues[i] = value;\n if (!ready && !hasValue[i]) {\n hasValue[i] = true;\n (ready = hasValue.every(identity)) && (hasValue = null);\n }\n }, undefined, noop));\n };\n for (var i = 0; i < len; i++) {\n var state_1 = _loop_1(i);\n if (typeof state_1 === \"object\")\n return state_1.value;\n }\n });\n}\n//# sourceMappingURL=withLatestFrom.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { arrRemove } from '../util/arrRemove';\nexport function bufferCount(bufferSize, startBufferEvery) {\n if (startBufferEvery === void 0) { startBufferEvery = null; }\n startBufferEvery = startBufferEvery !== null && startBufferEvery !== void 0 ? startBufferEvery : bufferSize;\n return operate(function (source, subscriber) {\n var buffers = [];\n var count = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n var toEmit = null;\n if (count++ % startBufferEvery === 0) {\n buffers.push([]);\n }\n for (var _i = 0, buffers_1 = buffers; _i < buffers_1.length; _i++) {\n var buffer = buffers_1[_i];\n buffer.push(value);\n if (bufferSize <= buffer.length) {\n toEmit = toEmit !== null && toEmit !== void 0 ? toEmit : [];\n toEmit.push(buffer);\n }\n }\n if (toEmit) {\n for (var _a = 0, toEmit_1 = toEmit; _a < toEmit_1.length; _a++) {\n var buffer = toEmit_1[_a];\n arrRemove(buffers, buffer);\n subscriber.next(buffer);\n }\n }\n }, undefined, function () {\n for (var _i = 0, buffers_2 = buffers; _i < buffers_2.length; _i++) {\n var buffer = buffers_2[_i];\n subscriber.next(buffer);\n }\n subscriber.complete();\n }, function () {\n buffers = null;\n }));\n });\n}\n//# sourceMappingURL=bufferCount.js.map","import { mergeAll } from './mergeAll';\nexport function concatAll() {\n return mergeAll(1);\n}\n//# sourceMappingURL=concatAll.js.map","import { concatAll } from '../operators/concatAll';\nimport { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nexport function concat() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var scheduler;\n if (isScheduler(args[args.length - 1])) {\n scheduler = args.pop();\n }\n return concatAll()(fromArray(args, scheduler));\n}\n//# sourceMappingURL=concat.js.map","import { concat } from '../observable/concat';\nimport { isScheduler } from '../util/isScheduler';\nexport function startWith() {\n var values = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n values[_i] = arguments[_i];\n }\n var scheduler = values[values.length - 1];\n if (isScheduler(scheduler)) {\n values.pop();\n return function (source) { return concat(values, source, scheduler); };\n }\n else {\n return function (source) { return concat(values, source); };\n }\n}\n//# sourceMappingURL=startWith.js.map","import { Observable } from '../Observable';\nimport { mergeMap } from '../operators/mergeMap';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isFunction } from '../util/isFunction';\nimport { mapOneOrManyArgs } from '../util/mapOneOrManyArgs';\nimport { fromArray } from './fromArray';\nexport function fromEvent(target, eventName, options, resultSelector) {\n if (isFunction(options)) {\n resultSelector = options;\n options = undefined;\n }\n if (resultSelector) {\n return fromEvent(target, eventName, options).pipe(mapOneOrManyArgs(resultSelector));\n }\n return new Observable(function (subscriber) {\n var handler = function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n return subscriber.next(args.length > 1 ? args : args[0]);\n };\n if (isEventTarget(target)) {\n target.addEventListener(eventName, handler, options);\n return function () { return target.removeEventListener(eventName, handler, options); };\n }\n if (isJQueryStyleEventEmitter(target)) {\n target.on(eventName, handler);\n return function () { return target.off(eventName, handler); };\n }\n if (isNodeStyleEventEmitter(target)) {\n target.addListener(eventName, handler);\n return function () { return target.removeListener(eventName, handler); };\n }\n if (isArrayLike(target)) {\n return mergeMap(function (target) { return fromEvent(target, eventName, options); })(fromArray(target)).subscribe(subscriber);\n }\n subscriber.error(new TypeError('Invalid event target'));\n return;\n });\n}\nfunction isNodeStyleEventEmitter(sourceObj) {\n return sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';\n}\nfunction isJQueryStyleEventEmitter(sourceObj) {\n return sourceObj && typeof sourceObj.on === 'function' && typeof sourceObj.off === 'function';\n}\nfunction isEventTarget(sourceObj) {\n return sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';\n}\n//# sourceMappingURL=fromEvent.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function mapTo(value) {\n return operate(function (source, subscriber) {\n source.subscribe(new OperatorSubscriber(subscriber, function () { return subscriber.next(value); }));\n });\n}\n//# sourceMappingURL=mapTo.js.map","import { Observable } from '../Observable';\nimport { noop } from '../util/noop';\nexport var NEVER = new Observable(noop);\nexport function never() {\n return NEVER;\n}\n//# sourceMappingURL=never.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function filter(predicate, thisArg) {\n return operate(function (source, subscriber) {\n var index = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) { return predicate.call(thisArg, value, index++) && subscriber.next(value); }));\n });\n}\n//# sourceMappingURL=filter.js.map","import { __extends } from \"tslib\";\nimport { Subject } from './Subject';\nvar BehaviorSubject = (function (_super) {\n __extends(BehaviorSubject, _super);\n function BehaviorSubject(_value) {\n var _this = _super.call(this) || this;\n _this._value = _value;\n return _this;\n }\n Object.defineProperty(BehaviorSubject.prototype, \"value\", {\n get: function () {\n return this.getValue();\n },\n enumerable: false,\n configurable: true\n });\n BehaviorSubject.prototype._subscribe = function (subscriber) {\n var subscription = _super.prototype._subscribe.call(this, subscriber);\n !subscription.closed && subscriber.next(this._value);\n return subscription;\n };\n BehaviorSubject.prototype.getValue = function () {\n var _a = this, hasError = _a.hasError, thrownError = _a.thrownError, _value = _a._value;\n if (hasError) {\n throw thrownError;\n }\n this._throwIfClosed();\n return _value;\n };\n BehaviorSubject.prototype.next = function (value) {\n _super.prototype.next.call(this, (this._value = value));\n };\n return BehaviorSubject;\n}(Subject));\nexport { BehaviorSubject };\n//# sourceMappingURL=BehaviorSubject.js.map","import { EMPTY } from '../observable/empty';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function take(count) {\n return count <= 0\n ? function () { return EMPTY; }\n : operate(function (source, subscriber) {\n var seen = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n if (++seen <= count) {\n subscriber.next(value);\n if (count <= seen) {\n subscriber.complete();\n }\n }\n }));\n });\n}\n//# sourceMappingURL=take.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { from } from '../observable/from';\nexport var defaultThrottleConfig = {\n leading: true,\n trailing: false,\n};\nexport function throttle(durationSelector, _a) {\n var _b = _a === void 0 ? defaultThrottleConfig : _a, leading = _b.leading, trailing = _b.trailing;\n return operate(function (source, subscriber) {\n var hasValue = false;\n var sendValue = null;\n var throttled = null;\n var throttlingDone = function () {\n throttled === null || throttled === void 0 ? void 0 : throttled.unsubscribe();\n throttled = null;\n trailing && send();\n };\n var throttle = function (value) {\n return (throttled = from(durationSelector(value)).subscribe(new OperatorSubscriber(subscriber, throttlingDone, undefined, throttlingDone)));\n };\n var send = function () {\n if (hasValue) {\n subscriber.next(sendValue);\n throttle(sendValue);\n }\n hasValue = false;\n sendValue = null;\n };\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n hasValue = true;\n sendValue = value;\n !throttled && (leading ? send() : throttle(value));\n }));\n });\n}\n//# sourceMappingURL=throttle.js.map","import { switchMap } from './switchMap';\nexport function switchMapTo(innerObservable, resultSelector) {\n return resultSelector ? switchMap(function () { return innerObservable; }, resultSelector) : switchMap(function () { return innerObservable; });\n}\n//# sourceMappingURL=switchMapTo.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function sample(notifier) {\n return operate(function (source, subscriber) {\n var hasValue = false;\n var lastValue = null;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n hasValue = true;\n lastValue = value;\n }));\n var emit = function () {\n if (hasValue) {\n hasValue = false;\n var value = lastValue;\n lastValue = null;\n subscriber.next(value);\n }\n };\n notifier.subscribe(new OperatorSubscriber(subscriber, emit, undefined, emit));\n });\n}\n//# sourceMappingURL=sample.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function skip(count) {\n return operate(function (source, subscriber) {\n var seen = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) { return (count === seen ? subscriber.next(value) : seen++); }));\n });\n}\n//# sourceMappingURL=skip.js.map","import { from } from '../observable/from';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { operate } from '../util/lift';\nexport function catchError(selector) {\n return operate(function (source, subscriber) {\n var innerSub = null;\n var syncUnsub = false;\n var handledResult;\n innerSub = source.subscribe(new OperatorSubscriber(subscriber, undefined, function (err) {\n handledResult = from(selector(err, catchError(selector)(source)));\n if (innerSub) {\n innerSub.unsubscribe();\n innerSub = null;\n handledResult.subscribe(subscriber);\n }\n else {\n syncUnsub = true;\n }\n }));\n if (syncUnsub) {\n innerSub.unsubscribe();\n innerSub = null;\n handledResult.subscribe(subscriber);\n }\n });\n}\n//# sourceMappingURL=catchError.js.map","import { asyncScheduler } from '../scheduler/async';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function debounceTime(dueTime, scheduler) {\n if (scheduler === void 0) { scheduler = asyncScheduler; }\n return operate(function (source, subscriber) {\n var hasValue = false;\n var lastValue = null;\n var debounceSubscription = null;\n var emitLastValue = function () {\n hasValue = false;\n var value = lastValue;\n lastValue = null;\n subscriber.next(value);\n };\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n debounceSubscription === null || debounceSubscription === void 0 ? void 0 : debounceSubscription.unsubscribe();\n hasValue = true;\n lastValue = value;\n subscriber.add((debounceSubscription = scheduler.schedule(function () {\n debounceSubscription = null;\n emitLastValue();\n }, dueTime)));\n }, undefined, function () {\n hasValue && emitLastValue();\n subscriber.complete();\n }));\n });\n}\n//# sourceMappingURL=debounceTime.js.map","import { mergeMap } from './mergeMap';\nexport function concatMap(project, resultSelector) {\n if (typeof resultSelector === 'function') {\n return mergeMap(project, resultSelector, 1);\n }\n return mergeMap(project, 1);\n}\n//# sourceMappingURL=concatMap.js.map","import { defer } from './defer';\nimport { EMPTY } from './empty';\nexport function iif(condition, trueResult, falseResult) {\n if (trueResult === void 0) { trueResult = EMPTY; }\n if (falseResult === void 0) { falseResult = EMPTY; }\n return defer(function () { return condition() ? trueResult : falseResult; });\n}\n//# sourceMappingURL=iif.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function refCount() {\n return operate(function (source, subscriber) {\n var connection = null;\n source._refCount++;\n var refCounter = new OperatorSubscriber(subscriber, undefined, undefined, undefined, function () {\n if (!source || source._refCount <= 0 || 0 < --source._refCount) {\n connection = null;\n return;\n }\n var sharedConnection = source._connection;\n var conn = connection;\n connection = null;\n if (sharedConnection && (!conn || sharedConnection === conn)) {\n sharedConnection.unsubscribe();\n }\n subscriber.unsubscribe();\n });\n source.subscribe(refCounter);\n if (!refCounter.closed) {\n connection = source.connect();\n }\n });\n}\n//# sourceMappingURL=refCount.js.map","import { __extends } from \"tslib\";\nimport { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { refCount as higherOrderRefCount } from '../operators/refCount';\nimport { OperatorSubscriber } from '../operators/OperatorSubscriber';\nvar ConnectableObservable = (function (_super) {\n __extends(ConnectableObservable, _super);\n function ConnectableObservable(source, subjectFactory) {\n var _this = _super.call(this) || this;\n _this.source = source;\n _this.subjectFactory = subjectFactory;\n _this._subject = null;\n _this._refCount = 0;\n _this._connection = null;\n return _this;\n }\n ConnectableObservable.prototype._subscribe = function (subscriber) {\n return this.getSubject().subscribe(subscriber);\n };\n ConnectableObservable.prototype.getSubject = function () {\n var subject = this._subject;\n if (!subject || subject.isStopped) {\n this._subject = this.subjectFactory();\n }\n return this._subject;\n };\n ConnectableObservable.prototype._teardown = function () {\n this._refCount = 0;\n var _connection = this._connection;\n this._subject = this._connection = null;\n _connection === null || _connection === void 0 ? void 0 : _connection.unsubscribe();\n };\n ConnectableObservable.prototype.connect = function () {\n var _this = this;\n var connection = this._connection;\n if (!connection) {\n connection = this._connection = new Subscription();\n var subject_1 = this.getSubject();\n connection.add(this.source.subscribe(new OperatorSubscriber(subject_1, undefined, function (err) {\n _this._teardown();\n subject_1.error(err);\n }, function () {\n _this._teardown();\n subject_1.complete();\n }, function () { return _this._teardown(); })));\n if (connection.closed) {\n this._connection = null;\n connection = Subscription.EMPTY;\n }\n }\n return connection;\n };\n ConnectableObservable.prototype.refCount = function () {\n return higherOrderRefCount()(this);\n };\n return ConnectableObservable;\n}(Observable));\nexport { ConnectableObservable };\n//# sourceMappingURL=ConnectableObservable.js.map","import { multicast } from './multicast';\nimport { refCount } from './refCount';\nimport { Subject } from '../Subject';\nfunction shareSubjectFactory() {\n return new Subject();\n}\nexport function share() {\n return function (source) { return refCount()(multicast(shareSubjectFactory)(source)); };\n}\n//# sourceMappingURL=share.js.map","import { ConnectableObservable } from '../observable/ConnectableObservable';\nimport { hasLift, operate } from '../util/lift';\nexport function multicast(subjectOrSubjectFactory, selector) {\n var subjectFactory = typeof subjectOrSubjectFactory === 'function' ? subjectOrSubjectFactory : function () { return subjectOrSubjectFactory; };\n if (typeof selector === 'function') {\n return operate(function (source, subscriber) {\n var subject = subjectFactory();\n selector(subject).subscribe(subscriber).add(source.subscribe(subject));\n });\n }\n return function (source) {\n var connectable = new ConnectableObservable(source, subjectFactory);\n if (hasLift(source)) {\n connectable.lift = source.lift;\n }\n connectable.source = source;\n connectable.subjectFactory = subjectFactory;\n return connectable;\n };\n}\n//# sourceMappingURL=multicast.js.map","var isArray = Array.isArray;\nexport function argsOrArgArray(args) {\n return args.length === 1 && isArray(args[0]) ? args[0] : args;\n}\n//# sourceMappingURL=argsOrArgArray.js.map","import { isScheduler } from '../util/isScheduler';\nimport { mergeAll } from '../operators/mergeAll';\nimport { fromArray } from './fromArray';\nimport { argsOrArgArray } from '../util/argsOrArgArray';\nimport { from } from './from';\nimport { EMPTY } from './empty';\nexport function merge() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var concurrent = Infinity;\n var scheduler = undefined;\n if (isScheduler(args[args.length - 1])) {\n scheduler = args.pop();\n }\n if (typeof args[args.length - 1] === 'number') {\n concurrent = args.pop();\n }\n args = argsOrArgArray(args);\n return !args.length\n ?\n EMPTY\n : args.length === 1\n ?\n from(args[0])\n :\n mergeAll(concurrent)(fromArray(args, scheduler));\n}\n//# sourceMappingURL=merge.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { from } from './from';\nexport function zip() {\n var sources = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n sources[_i] = arguments[_i];\n }\n var resultSelector = undefined;\n if (typeof sources[sources.length - 1] === 'function') {\n resultSelector = sources.pop();\n }\n return new Observable(function (subscriber) {\n var buffers = sources.map(function () { return []; });\n var completed = sources.map(function () { return false; });\n var subscription = new Subscription();\n var tryEmit = function () {\n if (buffers.every(function (buffer) { return buffer.length > 0; })) {\n var result = buffers.map(function (buffer) { return buffer.shift(); });\n if (resultSelector) {\n try {\n result = resultSelector.apply(void 0, result);\n }\n catch (err) {\n subscriber.error(err);\n return;\n }\n }\n subscriber.next(result);\n if (buffers.some(function (buffer, i) { return buffer.length === 0 && completed[i]; })) {\n subscriber.complete();\n }\n }\n };\n var _loop_1 = function (i) {\n var source = from(sources[i]);\n subscription.add(source.subscribe({\n next: function (value) {\n buffers[i].push(value);\n tryEmit();\n },\n error: function (err) { return subscriber.error(err); },\n complete: function () {\n completed[i] = true;\n if (buffers[i].length === 0) {\n subscriber.complete();\n }\n },\n }));\n };\n for (var i = 0; !subscriber.closed && i < sources.length; i++) {\n _loop_1(i);\n }\n return subscription;\n });\n}\n//# sourceMappingURL=zip.js.map","import { __spreadArrays } from \"tslib\";\nimport { zip as zipStatic } from '../observable/zip';\nimport { operate } from '../util/lift';\nexport function zip() {\n var sources = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n sources[_i] = arguments[_i];\n }\n return operate(function (source, subscriber) {\n zipStatic.apply(void 0, __spreadArrays([source], sources)).subscribe(subscriber);\n });\n}\nexport function zipWith() {\n var otherInputs = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n otherInputs[_i] = arguments[_i];\n }\n return zip.apply(void 0, otherInputs);\n}\n//# sourceMappingURL=zipWith.js.map","import { asyncScheduler } from '../scheduler/async';\nimport { isValidDate } from '../util/isDate';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function delay(delay, scheduler) {\n if (scheduler === void 0) { scheduler = asyncScheduler; }\n return operate(function (source, subscriber) {\n var isAbsoluteDelay = isValidDate(delay);\n var isComplete = false;\n var active = 0;\n var absoluteTimeValues = isAbsoluteDelay ? [] : null;\n var checkComplete = function () { return isComplete && !active && !(absoluteTimeValues === null || absoluteTimeValues === void 0 ? void 0 : absoluteTimeValues.length) && subscriber.complete(); };\n if (isAbsoluteDelay) {\n active++;\n subscriber.add(scheduler.schedule(function () {\n active--;\n if (absoluteTimeValues) {\n var values = absoluteTimeValues;\n absoluteTimeValues = null;\n for (var _i = 0, values_1 = values; _i < values_1.length; _i++) {\n var value = values_1[_i];\n subscriber.next(value);\n }\n }\n checkComplete();\n }, +delay - scheduler.now()));\n }\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n if (isAbsoluteDelay) {\n absoluteTimeValues ? absoluteTimeValues.push(value) : subscriber.next(value);\n }\n else {\n active++;\n subscriber.add(scheduler.schedule(function () {\n active--;\n subscriber.next(value);\n checkComplete();\n }, delay));\n }\n }, undefined, function () {\n isComplete = true;\n checkComplete();\n }));\n return function () {\n absoluteTimeValues = null;\n };\n });\n}\n//# sourceMappingURL=delay.js.map","export function isValidDate(value) {\n return value instanceof Date && !isNaN(value);\n}\n//# sourceMappingURL=isDate.js.map"],"sourceRoot":""} \ No newline at end of file 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*****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n extendStatics = Object.setPrototypeOf ||\r\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\r\n return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n extendStatics(d, b);\r\n function __() { this.constructor = d; }\r\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n }\r\n return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n var t = {};\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n t[p] = s[p];\r\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n t[p[i]] = s[p[i]];\r\n }\r\n return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n return new (P || (P = Promise))(function (resolve, reject) {\r\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n function verb(n) { return function (v) { return step([n, v]); }; }\r\n function step(op) {\r\n if (f) throw new TypeError(\"Generator is already executing.\");\r\n while (_) try {\r\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n if (y = 0, t) op = [op[0] & 2, t.value];\r\n switch (op[0]) {\r\n case 0: case 1: t = op; break;\r\n case 4: _.label++; return { value: op[1], done: false };\r\n case 5: _.label++; y = op[1]; op = [0]; continue;\r\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n default:\r\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n if (t[2]) _.ops.pop();\r\n _.trys.pop(); continue;\r\n }\r\n op = body.call(thisArg, _);\r\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n if (k2 === undefined) k2 = k;\r\n o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, o) {\r\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n if (m) return m.call(o);\r\n if (o && typeof o.length === \"number\") return {\r\n next: function () {\r\n if (o && i >= o.length) o = void 0;\r\n return { value: o && o[i++], done: !o };\r\n }\r\n };\r\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n if (!m) return o;\r\n var i = m.call(o), r, ar = [], e;\r\n try {\r\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n }\r\n catch (error) { e = { error: error }; }\r\n finally {\r\n try {\r\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n }\r\n finally { if (e) throw e.error; }\r\n }\r\n return ar;\r\n}\r\n\r\nexport function __spread() {\r\n for (var ar = [], i = 0; i < arguments.length; i++)\r\n ar = ar.concat(__read(arguments[i]));\r\n return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n r[k] = a[j];\r\n return r;\r\n};\r\n\r\nexport function __await(v) {\r\n return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n function fulfill(value) { resume(\"next\", value); }\r\n function reject(value) { resume(\"throw\", value); }\r\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n var i, p;\r\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n var m = o[Symbol.asyncIterator], i;\r\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n if (mod && mod.__esModule) return mod;\r\n var result = {};\r\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n __setModuleDefault(result, mod);\r\n return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to get private field on non-instance\");\r\n }\r\n return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n if (!privateMap.has(receiver)) {\r\n throw new TypeError(\"attempted to set private field on non-instance\");\r\n }\r\n privateMap.set(receiver, value);\r\n return value;\r\n}\r\n","export function hasLift(source) {\n return typeof (source === null || source === void 0 ? void 0 : source.lift) === 'function';\n}\nexport function operate(init) {\n return function (source) {\n if (hasLift(source)) {\n return source.lift(function (liftedSource) {\n try {\n return init(liftedSource, this);\n }\n catch (err) {\n this.error(err);\n }\n });\n }\n throw new TypeError('Unable to lift unknown Observable type');\n };\n}\n//# sourceMappingURL=lift.js.map","import { __extends } from \"tslib\";\nimport { Subscriber } from '../Subscriber';\nvar OperatorSubscriber = (function (_super) {\n __extends(OperatorSubscriber, _super);\n function OperatorSubscriber(destination, onNext, onError, onComplete, onUnsubscribe) {\n var _this = _super.call(this, destination) || this;\n _this.onUnsubscribe = onUnsubscribe;\n if (onNext) {\n _this._next = function (value) {\n try {\n onNext(value);\n }\n catch (err) {\n this.error(err);\n }\n };\n }\n if (onError) {\n _this._error = function (err) {\n try {\n onError(err);\n }\n catch (err) {\n this.destination.error(err);\n }\n this.unsubscribe();\n };\n }\n if (onComplete) {\n _this._complete = function () {\n try {\n onComplete();\n }\n catch (err) {\n this.destination.error(err);\n }\n this.unsubscribe();\n };\n }\n return _this;\n }\n OperatorSubscriber.prototype.unsubscribe = function () {\n var _a;\n !this.closed && ((_a = this.onUnsubscribe) === null || _a === void 0 ? void 0 : _a.call(this));\n _super.prototype.unsubscribe.call(this);\n };\n return OperatorSubscriber;\n}(Subscriber));\nexport { OperatorSubscriber };\n//# sourceMappingURL=OperatorSubscriber.js.map","import { SafeSubscriber, Subscriber } from './Subscriber';\nimport { isSubscription } from './Subscription';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nimport { reportUnhandledError } from './util/reportUnhandledError';\nvar Observable = (function () {\n function Observable(subscribe) {\n if (subscribe) {\n this._subscribe = subscribe;\n }\n }\n Observable.prototype.lift = function (operator) {\n var observable = new Observable();\n observable.source = this;\n observable.operator = operator;\n return observable;\n };\n Observable.prototype.subscribe = function (observerOrNext, error, complete) {\n var subscriber = isSubscriber(observerOrNext) ? observerOrNext : new SafeSubscriber(observerOrNext, error, complete);\n var _a = this, operator = _a.operator, source = _a.source;\n subscriber.add(operator\n ? operator.call(subscriber, source)\n : source || config.useDeprecatedSynchronousErrorHandling\n ? this._subscribe(subscriber)\n : this._trySubscribe(subscriber));\n return subscriber;\n };\n Observable.prototype._trySubscribe = function (sink) {\n try {\n return this._subscribe(sink);\n }\n catch (err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n else {\n canReportError(sink) ? sink.error(err) : reportUnhandledError(err);\n }\n }\n };\n Observable.prototype.forEach = function (next, promiseCtor) {\n var _this = this;\n promiseCtor = getPromiseCtor(promiseCtor);\n return new promiseCtor(function (resolve, reject) {\n var subscription;\n subscription = _this.subscribe(function (value) {\n try {\n next(value);\n }\n catch (err) {\n reject(err);\n subscription === null || subscription === void 0 ? void 0 : subscription.unsubscribe();\n }\n }, reject, resolve);\n });\n };\n Observable.prototype._subscribe = function (subscriber) {\n var _a;\n return (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber);\n };\n Observable.prototype[Symbol_observable] = function () {\n return this;\n };\n Observable.prototype.pipe = function () {\n var operations = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n operations[_i] = arguments[_i];\n }\n return operations.length ? pipeFromArray(operations)(this) : this;\n };\n Observable.prototype.toPromise = function (promiseCtor) {\n var _this = this;\n promiseCtor = getPromiseCtor(promiseCtor);\n return new promiseCtor(function (resolve, reject) {\n var value;\n _this.subscribe(function (x) { return (value = x); }, function (err) { return reject(err); }, function () { return resolve(value); });\n });\n };\n Observable.create = function (subscribe) {\n return new Observable(subscribe);\n };\n return Observable;\n}());\nexport { Observable };\nfunction getPromiseCtor(promiseCtor) {\n var _a;\n return (_a = promiseCtor !== null && promiseCtor !== void 0 ? promiseCtor : config.Promise) !== null && _a !== void 0 ? _a : Promise;\n}\nexport function canReportError(subscriber) {\n while (subscriber) {\n var _a = subscriber, closed_1 = _a.closed, destination = _a.destination, isStopped = _a.isStopped;\n if (closed_1 || isStopped) {\n return false;\n }\n subscriber = destination && destination instanceof Subscriber ? destination : null;\n }\n return true;\n}\nfunction isObserver(value) {\n return value && typeof value.next === 'function' && typeof value.error === 'function' && typeof value.complete === 'function';\n}\nfunction isSubscriber(value) {\n return (value && value instanceof Subscriber) || (isObserver(value) && isSubscription(value));\n}\n//# sourceMappingURL=Observable.js.map","import { createErrorClass } from './createErrorClass';\nexport var UnsubscriptionError = createErrorClass(function (_super) {\n return function UnsubscriptionError(errors) {\n _super(this);\n this.message = errors\n ? errors.length + \" errors occurred during unsubscription:\\n\" + errors.map(function (err, i) { return i + 1 + \") \" + err.toString(); }).join('\\n ')\n : '';\n this.name = 'UnsubscriptionError';\n this.errors = errors;\n };\n});\n//# sourceMappingURL=UnsubscriptionError.js.map","import { __spreadArrays } from \"tslib\";\nimport { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nimport { arrRemove } from './util/arrRemove';\nvar Subscription = (function () {\n function Subscription(initialTeardown) {\n this.initialTeardown = initialTeardown;\n this.closed = false;\n this._parentage = null;\n this._teardowns = null;\n }\n Subscription.prototype.unsubscribe = function () {\n var errors;\n if (!this.closed) {\n this.closed = true;\n var _parentage = this._parentage;\n if (Array.isArray(_parentage)) {\n for (var _i = 0, _parentage_1 = _parentage; _i < _parentage_1.length; _i++) {\n var parent_1 = _parentage_1[_i];\n parent_1.remove(this);\n }\n }\n else {\n _parentage === null || _parentage === void 0 ? void 0 : _parentage.remove(this);\n }\n var initialTeardown = this.initialTeardown;\n if (isFunction(initialTeardown)) {\n try {\n initialTeardown();\n }\n catch (e) {\n errors = e instanceof UnsubscriptionError ? e.errors : [e];\n }\n }\n var _teardowns = this._teardowns;\n if (_teardowns) {\n this._teardowns = null;\n for (var _a = 0, _teardowns_1 = _teardowns; _a < _teardowns_1.length; _a++) {\n var teardown_1 = _teardowns_1[_a];\n try {\n execTeardown(teardown_1);\n }\n catch (err) {\n errors = errors !== null && errors !== void 0 ? errors : [];\n if (err instanceof UnsubscriptionError) {\n errors = __spreadArrays(errors, err.errors);\n }\n else {\n errors.push(err);\n }\n }\n }\n }\n if (errors) {\n throw new UnsubscriptionError(errors);\n }\n }\n };\n Subscription.prototype.add = function (teardown) {\n var _a;\n if (teardown && teardown !== this) {\n if (this.closed) {\n execTeardown(teardown);\n }\n else {\n if (teardown instanceof Subscription) {\n if (teardown.closed || teardown._hasParent(this)) {\n return;\n }\n teardown._addParent(this);\n }\n (this._teardowns = (_a = this._teardowns) !== null && _a !== void 0 ? _a : []).push(teardown);\n }\n }\n };\n Subscription.prototype._hasParent = function (parent) {\n var _parentage = this._parentage;\n return _parentage === parent || (Array.isArray(_parentage) && _parentage.includes(parent));\n };\n Subscription.prototype._addParent = function (parent) {\n var _parentage = this._parentage;\n this._parentage = Array.isArray(_parentage) ? (_parentage.push(parent), _parentage) : _parentage ? [_parentage, parent] : parent;\n };\n Subscription.prototype._removeParent = function (parent) {\n var _parentage = this._parentage;\n if (_parentage === parent) {\n this._parentage = null;\n }\n else if (Array.isArray(_parentage)) {\n arrRemove(_parentage, parent);\n }\n };\n Subscription.prototype.remove = function (teardown) {\n var _teardowns = this._teardowns;\n _teardowns && arrRemove(_teardowns, teardown);\n if (teardown instanceof Subscription) {\n teardown._removeParent(this);\n }\n };\n Subscription.EMPTY = (function (empty) {\n empty.closed = true;\n return empty;\n })(new Subscription());\n return Subscription;\n}());\nexport { Subscription };\nexport var EMPTY_SUBSCRIPTION = Subscription.EMPTY;\nexport function isSubscription(value) {\n return (value instanceof Subscription ||\n (value &&\n 'closed' in value &&\n typeof value.remove === 'function' &&\n typeof value.add === 'function' &&\n typeof value.unsubscribe === 'function'));\n}\nfunction execTeardown(teardown) {\n if (typeof teardown === 'function') {\n teardown();\n }\n else {\n teardown.unsubscribe();\n }\n}\n//# sourceMappingURL=Subscription.js.map","export function getSymbolIterator() {\n if (typeof Symbol !== 'function' || !Symbol.iterator) {\n return '@@iterator';\n }\n return Symbol.iterator;\n}\nexport var iterator = getSymbolIterator();\nexport var $$iterator = iterator;\n//# sourceMappingURL=iterator.js.map","export function isPromise(value) {\n return !!value && typeof value.subscribe !== 'function' && typeof value.then === 'function';\n}\n//# sourceMappingURL=isPromise.js.map","import { __asyncValues, __awaiter, __generator } from \"tslib\";\nexport function subscribeToAsyncIterable(asyncIterable) {\n return function (subscriber) {\n process(asyncIterable, subscriber).catch(function (err) { return subscriber.error(err); });\n };\n}\nfunction process(asyncIterable, subscriber) {\n var asyncIterable_1, asyncIterable_1_1;\n var e_1, _a;\n return __awaiter(this, void 0, void 0, function () {\n var value, e_1_1;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0:\n _b.trys.push([0, 5, 6, 11]);\n asyncIterable_1 = __asyncValues(asyncIterable);\n _b.label = 1;\n case 1: return [4, asyncIterable_1.next()];\n case 2:\n if (!(asyncIterable_1_1 = _b.sent(), !asyncIterable_1_1.done)) return [3, 4];\n value = asyncIterable_1_1.value;\n subscriber.next(value);\n _b.label = 3;\n case 3: return [3, 1];\n case 4: return [3, 11];\n case 5:\n e_1_1 = _b.sent();\n e_1 = { error: e_1_1 };\n return [3, 11];\n case 6:\n _b.trys.push([6, , 9, 10]);\n if (!(asyncIterable_1_1 && !asyncIterable_1_1.done && (_a = asyncIterable_1.return))) return [3, 8];\n return [4, _a.call(asyncIterable_1)];\n case 7:\n _b.sent();\n _b.label = 8;\n case 8: return [3, 10];\n case 9:\n if (e_1) throw e_1.error;\n return [7];\n case 10: return [7];\n case 11:\n subscriber.complete();\n return [2];\n }\n });\n });\n}\n//# sourceMappingURL=subscribeToAsyncIterable.js.map","import { scheduleObservable } from './scheduleObservable';\nimport { schedulePromise } from './schedulePromise';\nimport { scheduleArray } from './scheduleArray';\nimport { scheduleIterable } from './scheduleIterable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isPromise } from '../util/isPromise';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isIterable } from '../util/isIterable';\nimport { scheduleAsyncIterable } from './scheduleAsyncIterable';\nexport function scheduled(input, scheduler) {\n if (input != null) {\n if (isInteropObservable(input)) {\n return scheduleObservable(input, scheduler);\n }\n else if (isPromise(input)) {\n return schedulePromise(input, scheduler);\n }\n else if (isArrayLike(input)) {\n return scheduleArray(input, scheduler);\n }\n else if (isIterable(input) || typeof input === 'string') {\n return scheduleIterable(input, scheduler);\n }\n else if (Symbol && Symbol.asyncIterator && typeof input[Symbol.asyncIterator] === 'function') {\n return scheduleAsyncIterable(input, scheduler);\n }\n }\n throw new TypeError((input !== null && typeof input || input) + ' is not observable');\n}\n//# sourceMappingURL=scheduled.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport function isInteropObservable(input) {\n return input && typeof input[Symbol_observable] === 'function';\n}\n//# sourceMappingURL=isInteropObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport function scheduleObservable(input, scheduler) {\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n sub.add(scheduler.schedule(function () {\n var observable = input[Symbol_observable]();\n sub.add(observable.subscribe({\n next: function (value) { sub.add(scheduler.schedule(function () { return subscriber.next(value); })); },\n error: function (err) { sub.add(scheduler.schedule(function () { return subscriber.error(err); })); },\n complete: function () { sub.add(scheduler.schedule(function () { return subscriber.complete(); })); },\n }));\n }));\n return sub;\n });\n}\n//# sourceMappingURL=scheduleObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function schedulePromise(input, scheduler) {\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n sub.add(scheduler.schedule(function () { return input.then(function (value) {\n sub.add(scheduler.schedule(function () {\n subscriber.next(value);\n sub.add(scheduler.schedule(function () { return subscriber.complete(); }));\n }));\n }, function (err) {\n sub.add(scheduler.schedule(function () { return subscriber.error(err); }));\n }); }));\n return sub;\n });\n}\n//# sourceMappingURL=schedulePromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function isIterable(input) {\n return input && typeof input[Symbol_iterator] === 'function';\n}\n//# sourceMappingURL=isIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function scheduleIterable(input, scheduler) {\n if (!input) {\n throw new Error('Iterable cannot be null');\n }\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n var iterator;\n sub.add(function () {\n if (iterator && typeof iterator.return === 'function') {\n iterator.return();\n }\n });\n sub.add(scheduler.schedule(function () {\n iterator = input[Symbol_iterator]();\n sub.add(scheduler.schedule(function () {\n if (subscriber.closed) {\n return;\n }\n var value;\n var done;\n try {\n var result = iterator.next();\n value = result.value;\n done = result.done;\n }\n catch (err) {\n subscriber.error(err);\n return;\n }\n if (done) {\n subscriber.complete();\n }\n else {\n subscriber.next(value);\n this.schedule();\n }\n }));\n }));\n return sub;\n });\n}\n//# sourceMappingURL=scheduleIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleAsyncIterable(input, scheduler) {\n if (!input) {\n throw new Error('Iterable cannot be null');\n }\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n sub.add(scheduler.schedule(function () {\n var iterator = input[Symbol.asyncIterator]();\n sub.add(scheduler.schedule(function () {\n var _this = this;\n iterator.next().then(function (result) {\n if (result.done) {\n subscriber.complete();\n }\n else {\n subscriber.next(result.value);\n _this.schedule();\n }\n });\n }));\n }));\n return sub;\n });\n}\n//# sourceMappingURL=scheduleAsyncIterable.js.map","import { subscribeToArray } from '../util/subscribeToArray';\nimport { subscribeToPromise } from '../util/subscribeToPromise';\nimport { subscribeToIterable } from '../util/subscribeToIterable';\nimport { subscribeToObservable } from '../util/subscribeToObservable';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isPromise } from '../util/isPromise';\nimport { isObject } from '../util/isObject';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { observable as Symbol_observable } from '../symbol/observable';\nimport { subscribeToAsyncIterable } from '../util/subscribeToAsyncIterable';\nimport { Observable } from '../Observable';\nimport { scheduled } from '../scheduled/scheduled';\nexport function from(input, scheduler) {\n if (!scheduler) {\n if (input instanceof Observable) {\n return input;\n }\n return new Observable(subscribeTo(input));\n }\n else {\n return scheduled(input, scheduler);\n }\n}\nfunction subscribeTo(result) {\n if (result && typeof result[Symbol_observable] === 'function') {\n return subscribeToObservable(result);\n }\n else if (isArrayLike(result)) {\n return subscribeToArray(result);\n }\n else if (isPromise(result)) {\n return subscribeToPromise(result);\n }\n else if (result && typeof result[Symbol_iterator] === 'function') {\n return subscribeToIterable(result);\n }\n else if (Symbol && Symbol.asyncIterator &&\n !!result && typeof result[Symbol.asyncIterator] === 'function') {\n return subscribeToAsyncIterable(result);\n }\n else {\n var value = isObject(result) ? 'an invalid object' : \"'\" + result + \"'\";\n var msg = \"You provided \" + value + \" where a stream was expected.\"\n + ' You can provide an Observable, Promise, Array, AsyncIterable, or Iterable.';\n throw new TypeError(msg);\n }\n}\n;\n//# sourceMappingURL=from.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport var subscribeToObservable = function (obj) { return function (subscriber) {\n var obs = obj[Symbol_observable]();\n if (typeof obs.subscribe !== 'function') {\n throw new TypeError('Provided object does not correctly implement Symbol.observable');\n }\n else {\n return obs.subscribe(subscriber);\n }\n}; };\n//# sourceMappingURL=subscribeToObservable.js.map","import { reportUnhandledError } from './reportUnhandledError';\nexport var subscribeToPromise = function (promise) { return function (subscriber) {\n promise.then(function (value) {\n if (!subscriber.closed) {\n subscriber.next(value);\n subscriber.complete();\n }\n }, function (err) { return subscriber.error(err); })\n .then(null, reportUnhandledError);\n return subscriber;\n}; };\n//# sourceMappingURL=subscribeToPromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport var subscribeToIterable = function (iterable) { return function (subscriber) {\n var iterator = iterable[Symbol_iterator]();\n do {\n var item = void 0;\n try {\n item = iterator.next();\n }\n catch (err) {\n subscriber.error(err);\n return;\n }\n if (item.done) {\n subscriber.complete();\n break;\n }\n subscriber.next(item.value);\n if (subscriber.closed) {\n break;\n }\n } while (true);\n if (typeof iterator.return === 'function') {\n subscriber.add(function () {\n if (iterator.return) {\n iterator.return();\n }\n });\n }\n return subscriber;\n}; };\n//# sourceMappingURL=subscribeToIterable.js.map","export function isObject(x) {\n return x !== null && typeof x === 'object';\n}\n//# sourceMappingURL=isObject.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function map(project, thisArg) {\n return operate(function (source, subscriber) {\n var index = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n subscriber.next(project.call(thisArg, value, index++));\n }));\n });\n}\n//# sourceMappingURL=map.js.map","export function identity(x) {\n return x;\n}\n//# sourceMappingURL=identity.js.map","export var observable = (function () { return typeof Symbol === 'function' && Symbol.observable || '@@observable'; })();\n//# sourceMappingURL=observable.js.map","export function isScheduler(value) {\n return value && typeof value.schedule === 'function';\n}\n//# sourceMappingURL=isScheduler.js.map","export function arrRemove(arr, item) {\n if (arr) {\n var index = arr.indexOf(item);\n 0 <= index && arr.splice(index, 1);\n }\n}\n//# sourceMappingURL=arrRemove.js.map","export var config = {\n onUnhandledError: null,\n Promise: undefined,\n useDeprecatedSynchronousErrorHandling: false,\n useDeprecatedNextContext: false,\n};\n//# sourceMappingURL=config.js.map","export function noop() { }\n//# sourceMappingURL=noop.js.map","import { from } from '../observable/from';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function switchMap(project, resultSelector) {\n return operate(function (source, subscriber) {\n var innerSubscriber = null;\n var index = 0;\n var isComplete = false;\n var checkComplete = function () { return isComplete && !innerSubscriber && subscriber.complete(); };\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n innerSubscriber === null || innerSubscriber === void 0 ? void 0 : innerSubscriber.unsubscribe();\n var innerIndex = 0;\n var outerIndex = index++;\n from(project(value, outerIndex)).subscribe((innerSubscriber = new OperatorSubscriber(subscriber, function (innerValue) { return subscriber.next(resultSelector ? resultSelector(value, innerValue, outerIndex, innerIndex++) : innerValue); }, undefined, function () {\n innerSubscriber = null;\n checkComplete();\n })));\n }, undefined, function () {\n isComplete = true;\n checkComplete();\n }));\n });\n}\n//# sourceMappingURL=switchMap.js.map","export function isFunction(x) {\n return typeof x === 'function';\n}\n//# sourceMappingURL=isFunction.js.map","import { Observable } from '../Observable';\nimport { subscribeToArray } from '../util/subscribeToArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function fromArray(input, scheduler) {\n if (!scheduler) {\n return new Observable(subscribeToArray(input));\n }\n else {\n return scheduleArray(input, scheduler);\n }\n}\n//# sourceMappingURL=fromArray.js.map","import { __extends } from \"tslib\";\nimport { isFunction } from './util/isFunction';\nimport { isSubscription, Subscription } from './Subscription';\nimport { config } from './config';\nimport { reportUnhandledError } from './util/reportUnhandledError';\nimport { noop } from './util/noop';\nvar Subscriber = (function (_super) {\n __extends(Subscriber, _super);\n function Subscriber(destination) {\n var _this = _super.call(this) || this;\n _this.isStopped = false;\n if (destination) {\n _this.destination = destination;\n if (isSubscription(destination)) {\n destination.add(_this);\n }\n }\n else {\n _this.destination = EMPTY_OBSERVER;\n }\n return _this;\n }\n Subscriber.create = function (next, error, complete) {\n return new SafeSubscriber(next, error, complete);\n };\n Subscriber.prototype.next = function (value) {\n if (!this.isStopped) {\n this._next(value);\n }\n };\n Subscriber.prototype.error = function (err) {\n if (!this.isStopped) {\n this.isStopped = true;\n this._error(err);\n }\n };\n Subscriber.prototype.complete = function () {\n if (!this.isStopped) {\n this.isStopped = true;\n this._complete();\n }\n };\n Subscriber.prototype.unsubscribe = function () {\n if (!this.closed) {\n this.isStopped = true;\n _super.prototype.unsubscribe.call(this);\n }\n };\n Subscriber.prototype._next = function (value) {\n this.destination.next(value);\n };\n Subscriber.prototype._error = function (err) {\n this.destination.error(err);\n this.unsubscribe();\n };\n Subscriber.prototype._complete = function () {\n this.destination.complete();\n this.unsubscribe();\n };\n return Subscriber;\n}(Subscription));\nexport { Subscriber };\nvar SafeSubscriber = (function (_super) {\n __extends(SafeSubscriber, _super);\n function SafeSubscriber(observerOrNext, error, complete) {\n var _this = _super.call(this) || this;\n _this.destination = EMPTY_OBSERVER;\n if ((observerOrNext || error || complete) && observerOrNext !== EMPTY_OBSERVER) {\n var next = void 0;\n if (isFunction(observerOrNext)) {\n next = observerOrNext;\n }\n else if (observerOrNext) {\n (next = observerOrNext.next, error = observerOrNext.error, complete = observerOrNext.complete);\n var context_1;\n if (_this && config.useDeprecatedNextContext) {\n context_1 = Object.create(observerOrNext);\n context_1.unsubscribe = function () { return _this.unsubscribe(); };\n }\n else {\n context_1 = observerOrNext;\n }\n next = next === null || next === void 0 ? void 0 : next.bind(context_1);\n error = error === null || error === void 0 ? void 0 : error.bind(context_1);\n complete = complete === null || complete === void 0 ? void 0 : complete.bind(context_1);\n }\n _this.destination = {\n next: next || noop,\n error: error || defaultErrorHandler,\n complete: complete || noop,\n };\n }\n return _this;\n }\n return SafeSubscriber;\n}(Subscriber));\nexport { SafeSubscriber };\nfunction defaultErrorHandler(err) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n throw err;\n }\n reportUnhandledError(err);\n}\nexport var EMPTY_OBSERVER = {\n closed: true,\n next: noop,\n error: defaultErrorHandler,\n complete: noop,\n};\n//# sourceMappingURL=Subscriber.js.map","import { Observable } from '../Observable';\nexport var EMPTY = new Observable(function (subscriber) { return subscriber.complete(); });\nexport function empty(scheduler) {\n return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\nfunction emptyScheduled(scheduler) {\n return new Observable(function (subscriber) { return scheduler.schedule(function () { return subscriber.complete(); }); });\n}\n//# sourceMappingURL=empty.js.map","import { map } from './map';\nimport { from } from '../observable/from';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function mergeMap(project, resultSelector, concurrent) {\n if (concurrent === void 0) { concurrent = Infinity; }\n if (typeof resultSelector === 'function') {\n return function (source) {\n return source.pipe(mergeMap(function (a, i) { return from(project(a, i)).pipe(map(function (b, ii) { return resultSelector(a, b, i, ii); })); }, concurrent));\n };\n }\n else if (typeof resultSelector === 'number') {\n concurrent = resultSelector;\n }\n return operate(function (source, subscriber) {\n var isComplete = false;\n var active = 0;\n var index = 0;\n var buffer = [];\n var checkComplete = function () { return isComplete && !active && subscriber.complete(); };\n var tryInnerSub = function () {\n while (active < concurrent && buffer.length > 0) {\n doInnerSub(buffer.shift());\n }\n };\n var doInnerSub = function (value) {\n active++;\n subscriber.add(from(project(value, index++)).subscribe(new OperatorSubscriber(subscriber, function (innerValue) { return subscriber.next(innerValue); }, undefined, function () {\n active--;\n buffer.length && tryInnerSub();\n checkComplete();\n })));\n };\n var outerSubs;\n outerSubs = source.subscribe(new OperatorSubscriber(subscriber, function (value) { return (active < concurrent ? doInnerSub(value) : buffer.push(value)); }, undefined, function () {\n isComplete = true;\n checkComplete();\n outerSubs === null || outerSubs === void 0 ? void 0 : outerSubs.unsubscribe();\n }));\n return function () {\n buffer = null;\n };\n });\n}\nexport var flatMap = mergeMap;\n//# sourceMappingURL=mergeMap.js.map","import { config } from '../config';\nexport function reportUnhandledError(err) {\n setTimeout(function () {\n var onUnhandledError = config.onUnhandledError;\n if (onUnhandledError) {\n onUnhandledError(err);\n }\n else {\n throw err;\n }\n });\n}\n//# sourceMappingURL=reportUnhandledError.js.map","export var isArrayLike = (function (x) { return x && typeof x.length === 'number' && typeof x !== 'function'; });\n//# sourceMappingURL=isArrayLike.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleArray(input, scheduler) {\n return new Observable(function (subscriber) {\n var sub = new Subscription();\n var i = 0;\n sub.add(scheduler.schedule(function () {\n if (i === input.length) {\n subscriber.complete();\n return;\n }\n subscriber.next(input[i++]);\n if (!subscriber.closed) {\n sub.add(this.schedule());\n }\n }));\n return sub;\n });\n}\n//# sourceMappingURL=scheduleArray.js.map","import { createErrorClass } from './createErrorClass';\nexport var ObjectUnsubscribedError = createErrorClass(function (_super) {\n return function ObjectUnsubscribedError() {\n _super(this);\n this.message = 'object unsubscribed';\n };\n});\n//# sourceMappingURL=ObjectUnsubscribedError.js.map","import { __extends } from \"tslib\";\nimport { Observable } from './Observable';\nimport { Subscription, EMPTY_SUBSCRIPTION } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { arrRemove } from './util/arrRemove';\nvar Subject = (function (_super) {\n __extends(Subject, _super);\n function Subject() {\n var _this = _super.call(this) || this;\n _this.observers = [];\n _this.closed = false;\n _this.isStopped = false;\n _this.hasError = false;\n _this.thrownError = null;\n return _this;\n }\n Subject.prototype.lift = function (operator) {\n var subject = new AnonymousSubject(this, this);\n subject.operator = operator;\n return subject;\n };\n Subject.prototype._throwIfClosed = function () {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n };\n Subject.prototype.next = function (value) {\n this._throwIfClosed();\n if (!this.isStopped) {\n var copy = this.observers.slice();\n for (var _i = 0, copy_1 = copy; _i < copy_1.length; _i++) {\n var observer = copy_1[_i];\n observer.next(value);\n }\n }\n };\n Subject.prototype.error = function (err) {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.hasError = this.isStopped = true;\n this.thrownError = err;\n var observers = this.observers;\n while (observers.length) {\n observers.shift().error(err);\n }\n }\n };\n Subject.prototype.complete = function () {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.isStopped = true;\n var observers = this.observers;\n while (observers.length) {\n observers.shift().complete();\n }\n }\n };\n Subject.prototype.unsubscribe = function () {\n this.isStopped = this.closed = true;\n this.observers = null;\n };\n Subject.prototype._trySubscribe = function (subscriber) {\n this._throwIfClosed();\n return _super.prototype._trySubscribe.call(this, subscriber);\n };\n Subject.prototype._subscribe = function (subscriber) {\n this._throwIfClosed();\n this._checkFinalizedStatuses(subscriber);\n return this._innerSubscribe(subscriber);\n };\n Subject.prototype._innerSubscribe = function (subscriber) {\n var _this = this;\n var _a = this, hasError = _a.hasError, isStopped = _a.isStopped, observers = _a.observers;\n return hasError || isStopped\n ? EMPTY_SUBSCRIPTION\n : (observers.push(subscriber), new Subscription(function () { return arrRemove(_this.observers, subscriber); }));\n };\n Subject.prototype._checkFinalizedStatuses = function (subscriber) {\n var _a = this, hasError = _a.hasError, thrownError = _a.thrownError, isStopped = _a.isStopped;\n if (hasError) {\n subscriber.error(thrownError);\n }\n else if (isStopped) {\n subscriber.complete();\n }\n };\n Subject.prototype.asObservable = function () {\n var observable = new Observable();\n observable.source = this;\n return observable;\n };\n Subject.create = function (destination, source) {\n return new AnonymousSubject(destination, source);\n };\n return Subject;\n}(Observable));\nexport { Subject };\nvar AnonymousSubject = (function (_super) {\n __extends(AnonymousSubject, _super);\n function AnonymousSubject(destination, source) {\n var _this = _super.call(this) || this;\n _this.destination = destination;\n _this.source = source;\n return _this;\n }\n AnonymousSubject.prototype.next = function (value) {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.next) === null || _b === void 0 ? void 0 : _b.call(_a, value);\n };\n AnonymousSubject.prototype.error = function (err) {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.error) === null || _b === void 0 ? void 0 : _b.call(_a, err);\n };\n AnonymousSubject.prototype.complete = function () {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.complete) === null || _b === void 0 ? void 0 : _b.call(_a);\n };\n AnonymousSubject.prototype._subscribe = function (subscriber) {\n var _a, _b;\n return (_b = (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber)) !== null && _b !== void 0 ? _b : EMPTY_SUBSCRIPTION;\n };\n return AnonymousSubject;\n}(Subject));\nexport { AnonymousSubject };\n//# sourceMappingURL=Subject.js.map","import { identity } from './identity';\nexport function pipe() {\n var fns = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n fns[_i] = arguments[_i];\n }\n return pipeFromArray(fns);\n}\nexport function pipeFromArray(fns) {\n if (fns.length === 0) {\n return identity;\n }\n if (fns.length === 1) {\n return fns[0];\n }\n return function piped(input) {\n return fns.reduce(function (prev, fn) { return fn(prev); }, input);\n };\n}\n//# sourceMappingURL=pipe.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function distinctUntilChanged(compare, keySelector) {\n compare = compare !== null && compare !== void 0 ? compare : defaultCompare;\n return operate(function (source, subscriber) {\n var prev;\n var first = true;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n ((first && ((prev = value), 1)) || !compare(prev, (prev = keySelector ? keySelector(value) : value))) &&\n subscriber.next(value);\n first = false;\n }));\n });\n}\nfunction defaultCompare(a, b) {\n return a === b;\n}\n//# sourceMappingURL=distinctUntilChanged.js.map","export var dateTimestampProvider = {\n now: function () {\n return (dateTimestampProvider.delegate || Date).now();\n },\n delegate: undefined,\n};\n//# sourceMappingURL=dateTimestampProvider.js.map","export function createErrorClass(createImpl) {\n var _super = function (instance) {\n Error.call(instance);\n instance.name = instance.constructor.name;\n instance.stack = new Error().stack;\n };\n var ctorFunc = createImpl(_super);\n ctorFunc.prototype = Object.create(Error.prototype);\n ctorFunc.prototype.constructor = ctorFunc;\n return ctorFunc;\n}\n//# sourceMappingURL=createErrorClass.js.map","import { map } from \"../operators/map\";\nvar isArray = Array.isArray;\nfunction callOrApply(fn, args) {\n return isArray(args) ? fn.apply(void 0, args) : fn(args);\n}\nexport function mapOneOrManyArgs(fn) {\n return map(function (args) { return callOrApply(fn, args); });\n}\n//# sourceMappingURL=mapOneOrManyArgs.js.map","export var subscribeToArray = function (array) { return function (subscriber) {\n for (var i = 0, len = array.length; i < len && !subscriber.closed; i++) {\n subscriber.next(array[i]);\n }\n subscriber.complete();\n}; };\n//# sourceMappingURL=subscribeToArray.js.map","import { mergeMap } from './mergeMap';\nimport { identity } from '../util/identity';\nexport function mergeAll(concurrent) {\n if (concurrent === void 0) { concurrent = Infinity; }\n return mergeMap(identity, concurrent);\n}\n//# sourceMappingURL=mergeAll.js.map","import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\nexport var asyncScheduler = new AsyncScheduler(AsyncAction);\nexport var async = asyncScheduler;\n//# sourceMappingURL=async.js.map","import { __extends } from \"tslib\";\nimport { Subscription } from '../Subscription';\nvar Action = (function (_super) {\n __extends(Action, _super);\n function Action(scheduler, work) {\n return _super.call(this) || this;\n }\n Action.prototype.schedule = function (state, delay) {\n if (delay === void 0) { delay = 0; }\n return this;\n };\n return Action;\n}(Subscription));\nexport { Action };\n//# sourceMappingURL=Action.js.map","export var intervalProvider = {\n setInterval: function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var delegate = intervalProvider.delegate;\n return ((delegate === null || delegate === void 0 ? void 0 : delegate.setInterval) || setInterval).apply(void 0, args);\n },\n clearInterval: function (handle) {\n var delegate = intervalProvider.delegate;\n return ((delegate === null || delegate === void 0 ? void 0 : delegate.clearInterval) || clearInterval)(handle);\n },\n delegate: undefined,\n};\n//# sourceMappingURL=intervalProvider.js.map","import { __extends } from \"tslib\";\nimport { Action } from './Action';\nimport { intervalProvider } from './intervalProvider';\nimport { arrRemove } from '../util/arrRemove';\nvar AsyncAction = (function (_super) {\n __extends(AsyncAction, _super);\n function AsyncAction(scheduler, work) {\n var _this = _super.call(this, scheduler, work) || this;\n _this.scheduler = scheduler;\n _this.work = work;\n _this.pending = false;\n return _this;\n }\n AsyncAction.prototype.schedule = function (state, delay) {\n if (delay === void 0) { delay = 0; }\n if (this.closed) {\n return this;\n }\n this.state = state;\n var id = this.id;\n var scheduler = this.scheduler;\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, delay);\n }\n this.pending = true;\n this.delay = delay;\n this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n return this;\n };\n AsyncAction.prototype.requestAsyncId = function (scheduler, _id, delay) {\n if (delay === void 0) { delay = 0; }\n return intervalProvider.setInterval(scheduler.flush.bind(scheduler, this), delay);\n };\n AsyncAction.prototype.recycleAsyncId = function (_scheduler, id, delay) {\n if (delay === void 0) { delay = 0; }\n if (delay != null && this.delay === delay && this.pending === false) {\n return id;\n }\n intervalProvider.clearInterval(id);\n return undefined;\n };\n AsyncAction.prototype.execute = function (state, delay) {\n if (this.closed) {\n return new Error('executing a cancelled action');\n }\n this.pending = false;\n var error = this._execute(state, delay);\n if (error) {\n return error;\n }\n else if (this.pending === false && this.id != null) {\n this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n }\n };\n AsyncAction.prototype._execute = function (state, _delay) {\n var errored = false;\n var errorValue = undefined;\n try {\n this.work(state);\n }\n catch (e) {\n errored = true;\n errorValue = (!!e && e) || new Error(e);\n }\n if (errored) {\n this.unsubscribe();\n return errorValue;\n }\n };\n AsyncAction.prototype.unsubscribe = function () {\n if (!this.closed) {\n var _a = this, id = _a.id, scheduler = _a.scheduler;\n var actions = scheduler.actions;\n this.work = this.state = this.scheduler = null;\n this.pending = false;\n arrRemove(actions, this);\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, null);\n }\n this.delay = null;\n _super.prototype.unsubscribe.call(this);\n }\n };\n return AsyncAction;\n}(Action));\nexport { AsyncAction };\n//# sourceMappingURL=AsyncAction.js.map","import { dateTimestampProvider } from \"./scheduler/dateTimestampProvider\";\nvar Scheduler = (function () {\n function Scheduler(SchedulerAction, now) {\n if (now === void 0) { now = Scheduler.now; }\n this.SchedulerAction = SchedulerAction;\n this.now = now;\n }\n Scheduler.prototype.schedule = function (work, delay, state) {\n if (delay === void 0) { delay = 0; }\n return new this.SchedulerAction(this, work).schedule(state, delay);\n };\n Scheduler.now = dateTimestampProvider.now;\n return Scheduler;\n}());\nexport { Scheduler };\n//# sourceMappingURL=Scheduler.js.map","import { __extends } from \"tslib\";\nimport { Scheduler } from '../Scheduler';\nvar AsyncScheduler = (function (_super) {\n __extends(AsyncScheduler, _super);\n function AsyncScheduler(SchedulerAction, now) {\n if (now === void 0) { now = Scheduler.now; }\n var _this = _super.call(this, SchedulerAction, now) || this;\n _this.actions = [];\n _this.active = false;\n _this.scheduled = undefined;\n return _this;\n }\n AsyncScheduler.prototype.flush = function (action) {\n var actions = this.actions;\n if (this.active) {\n actions.push(action);\n return;\n }\n var error;\n this.active = true;\n do {\n if (error = action.execute(action.state, action.delay)) {\n break;\n }\n } while (action = actions.shift());\n this.active = false;\n if (error) {\n while (action = actions.shift()) {\n action.unsubscribe();\n }\n throw error;\n }\n };\n return AsyncScheduler;\n}(Scheduler));\nexport { AsyncScheduler };\n//# sourceMappingURL=AsyncScheduler.js.map","/*!\n * clipboard.js v2.0.6\n * https://clipboardjs.com/\n * \n * Licensed MIT © Zeno Rocha\n */\n(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"ClipboardJS\"] = factory();\n\telse\n\t\troot[\"ClipboardJS\"] = factory();\n})(this, function() {\nreturn /******/ (function(modules) { // webpackBootstrap\n/******/ \t// The module cache\n/******/ \tvar installedModules = {};\n/******/\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(installedModules[moduleId]) {\n/******/ \t\t\treturn installedModules[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = installedModules[moduleId] = {\n/******/ \t\t\ti: moduleId,\n/******/ \t\t\tl: false,\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/\n/******/ \t\t// Execute the module function\n/******/ \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n/******/\n/******/ \t\t// Flag the module as loaded\n/******/ \t\tmodule.l = true;\n/******/\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/\n/******/\n/******/ \t// expose the modules object (__webpack_modules__)\n/******/ \t__webpack_require__.m = modules;\n/******/\n/******/ \t// expose the module cache\n/******/ \t__webpack_require__.c = installedModules;\n/******/\n/******/ \t// define getter function for harmony exports\n/******/ \t__webpack_require__.d = function(exports, name, getter) {\n/******/ \t\tif(!__webpack_require__.o(exports, name)) {\n/******/ \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n/******/ \t\t}\n/******/ 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\t\t__webpack_require__.r(ns);\n/******/ \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n/******/ \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n/******/ \t\treturn ns;\n/******/ \t};\n/******/\n/******/ \t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t__webpack_require__.n = function(module) {\n/******/ \t\tvar getter = module && module.__esModule ?\n/******/ \t\t\tfunction getDefault() { return module['default']; } :\n/******/ \t\t\tfunction getModuleExports() { return module; };\n/******/ \t\t__webpack_require__.d(getter, 'a', getter);\n/******/ \t\treturn getter;\n/******/ \t};\n/******/\n/******/ \t// Object.prototype.hasOwnProperty.call\n/******/ \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n/******/\n/******/ \t// __webpack_public_path__\n/******/ \t__webpack_require__.p = \"\";\n/******/\n/******/\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(__webpack_require__.s = 6);\n/******/ })\n/************************************************************************/\n/******/ ([\n/* 0 */\n/***/ (function(module, exports) {\n\nfunction select(element) {\n var selectedText;\n\n if (element.nodeName === 'SELECT') {\n element.focus();\n\n selectedText = element.value;\n }\n else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n var isReadOnly = element.hasAttribute('readonly');\n\n if (!isReadOnly) {\n element.setAttribute('readonly', '');\n }\n\n element.select();\n element.setSelectionRange(0, element.value.length);\n\n if (!isReadOnly) {\n element.removeAttribute('readonly');\n }\n\n selectedText = element.value;\n }\n else {\n if (element.hasAttribute('contenteditable')) {\n element.focus();\n }\n\n var selection = window.getSelection();\n var range = document.createRange();\n\n range.selectNodeContents(element);\n selection.removeAllRanges();\n selection.addRange(range);\n\n selectedText = selection.toString();\n }\n\n return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports) {\n\nfunction E () {\n // Keep this empty so it's easier to inherit from\n // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n on: function (name, callback, ctx) {\n var e = this.e || (this.e = {});\n\n (e[name] || (e[name] = [])).push({\n fn: callback,\n ctx: ctx\n });\n\n return this;\n },\n\n once: function (name, callback, ctx) {\n var self = this;\n function listener () {\n self.off(name, listener);\n callback.apply(ctx, arguments);\n };\n\n listener._ = callback\n return this.on(name, listener, ctx);\n },\n\n emit: function (name) {\n var data = [].slice.call(arguments, 1);\n var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n var i = 0;\n var len = evtArr.length;\n\n for (i; i < len; i++) {\n evtArr[i].fn.apply(evtArr[i].ctx, data);\n }\n\n return this;\n },\n\n off: function (name, callback) {\n var e = this.e || (this.e = {});\n var evts = e[name];\n var liveEvents = [];\n\n if (evts && callback) {\n for (var i = 0, len = evts.length; i < len; i++) {\n if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n liveEvents.push(evts[i]);\n }\n }\n\n // Remove event from queue to prevent memory leak\n // Suggested by https://github.com/lazd\n // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n (liveEvents.length)\n ? e[name] = liveEvents\n : delete e[name];\n\n return this;\n }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar is = __webpack_require__(3);\nvar delegate = __webpack_require__(4);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n if (!target && !type && !callback) {\n throw new Error('Missing required arguments');\n }\n\n if (!is.string(type)) {\n throw new TypeError('Second argument must be a String');\n }\n\n if (!is.fn(callback)) {\n throw new TypeError('Third argument must be a Function');\n }\n\n if (is.node(target)) {\n return listenNode(target, type, callback);\n }\n else if (is.nodeList(target)) {\n return listenNodeList(target, type, callback);\n }\n else if (is.string(target)) {\n return listenSelector(target, type, callback);\n }\n else {\n throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n node.addEventListener(type, callback);\n\n return {\n destroy: function() {\n node.removeEventListener(type, callback);\n }\n }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.addEventListener(type, callback);\n });\n\n return {\n destroy: function() {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.removeEventListener(type, callback);\n });\n }\n }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n return value !== undefined\n && value instanceof HTMLElement\n && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return value !== undefined\n && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n && ('length' in value)\n && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n return typeof value === 'string'\n || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return type === '[object Function]';\n};\n\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar closest = __webpack_require__(5);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n var listenerFn = listener.apply(this, arguments);\n\n element.addEventListener(type, listenerFn, useCapture);\n\n return {\n destroy: function() {\n element.removeEventListener(type, listenerFn, useCapture);\n }\n }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n // Handle the regular Element usage\n if (typeof elements.addEventListener === 'function') {\n return _delegate.apply(null, arguments);\n }\n\n // Handle Element-less usage, it defaults to global delegation\n if (typeof type === 'function') {\n // Use `document` as the first parameter, then apply arguments\n // This is a short way to .unshift `arguments` without running into deoptimizations\n return _delegate.bind(null, document).apply(null, arguments);\n }\n\n // Handle Selector-based usage\n if (typeof elements === 'string') {\n elements = document.querySelectorAll(elements);\n }\n\n // Handle Array-like based usage\n return Array.prototype.map.call(elements, function (element) {\n return _delegate(element, selector, type, callback, useCapture);\n });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n return function(e) {\n e.delegateTarget = closest(e.target, selector);\n\n if (e.delegateTarget) {\n callback.call(element, e);\n }\n }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n var proto = Element.prototype;\n\n proto.matches = proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n if (typeof element.matches === 'function' &&\n element.matches(selector)) {\n return element;\n }\n element = element.parentNode;\n }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n\n// EXTERNAL MODULE: ./node_modules/select/src/select.js\nvar src_select = __webpack_require__(0);\nvar select_default = /*#__PURE__*/__webpack_require__.n(src_select);\n\n// CONCATENATED MODULE: ./src/clipboard-action.js\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n\n\n/**\n * Inner class which performs selection from either `text` or `target`\n * properties and then executes copy or cut operations.\n */\n\nvar clipboard_action_ClipboardAction = function () {\n /**\n * @param {Object} options\n */\n function ClipboardAction(options) {\n _classCallCheck(this, ClipboardAction);\n\n this.resolveOptions(options);\n this.initSelection();\n }\n\n /**\n * Defines base properties passed from constructor.\n * @param {Object} options\n */\n\n\n _createClass(ClipboardAction, [{\n key: 'resolveOptions',\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n this.action = options.action;\n this.container = options.container;\n this.emitter = options.emitter;\n this.target = options.target;\n this.text = options.text;\n this.trigger = options.trigger;\n\n this.selectedText = '';\n }\n\n /**\n * Decides which selection strategy is going to be applied based\n * on the existence of `text` and `target` properties.\n */\n\n }, {\n key: 'initSelection',\n value: function initSelection() {\n if (this.text) {\n this.selectFake();\n } else if (this.target) {\n this.selectTarget();\n }\n }\n\n /**\n * Creates a fake textarea element, sets its value from `text` property,\n * and makes a selection on it.\n */\n\n }, {\n key: 'selectFake',\n value: function selectFake() {\n var _this = this;\n\n var isRTL = document.documentElement.getAttribute('dir') == 'rtl';\n\n this.removeFake();\n\n this.fakeHandlerCallback = function () {\n return _this.removeFake();\n };\n this.fakeHandler = this.container.addEventListener('click', this.fakeHandlerCallback) || true;\n\n this.fakeElem = document.createElement('textarea');\n // Prevent zooming on iOS\n this.fakeElem.style.fontSize = '12pt';\n // Reset box model\n this.fakeElem.style.border = '0';\n this.fakeElem.style.padding = '0';\n this.fakeElem.style.margin = '0';\n // Move element out of screen horizontally\n this.fakeElem.style.position = 'absolute';\n this.fakeElem.style[isRTL ? 'right' : 'left'] = '-9999px';\n // Move element to the same position vertically\n var yPosition = window.pageYOffset || document.documentElement.scrollTop;\n this.fakeElem.style.top = yPosition + 'px';\n\n this.fakeElem.setAttribute('readonly', '');\n this.fakeElem.value = this.text;\n\n this.container.appendChild(this.fakeElem);\n\n this.selectedText = select_default()(this.fakeElem);\n this.copyText();\n }\n\n /**\n * Only removes the fake element after another click event, that way\n * a user can hit `Ctrl+C` to copy because selection still exists.\n */\n\n }, {\n key: 'removeFake',\n value: function removeFake() {\n if (this.fakeHandler) {\n this.container.removeEventListener('click', this.fakeHandlerCallback);\n this.fakeHandler = null;\n this.fakeHandlerCallback = null;\n }\n\n if (this.fakeElem) {\n this.container.removeChild(this.fakeElem);\n this.fakeElem = null;\n }\n }\n\n /**\n * Selects the content from element passed on `target` property.\n */\n\n }, {\n key: 'selectTarget',\n value: function selectTarget() {\n this.selectedText = select_default()(this.target);\n this.copyText();\n }\n\n /**\n * Executes the copy operation based on the current selection.\n */\n\n }, {\n key: 'copyText',\n value: function copyText() {\n var succeeded = void 0;\n\n try {\n succeeded = document.execCommand(this.action);\n } catch (err) {\n succeeded = false;\n }\n\n this.handleResult(succeeded);\n }\n\n /**\n * Fires an event based on the copy operation result.\n * @param {Boolean} succeeded\n */\n\n }, {\n key: 'handleResult',\n value: function handleResult(succeeded) {\n this.emitter.emit(succeeded ? 'success' : 'error', {\n action: this.action,\n text: this.selectedText,\n trigger: this.trigger,\n clearSelection: this.clearSelection.bind(this)\n });\n }\n\n /**\n * Moves focus away from `target` and back to the trigger, removes current selection.\n */\n\n }, {\n key: 'clearSelection',\n value: function clearSelection() {\n if (this.trigger) {\n this.trigger.focus();\n }\n document.activeElement.blur();\n window.getSelection().removeAllRanges();\n }\n\n /**\n * Sets the `action` to be performed which can be either 'copy' or 'cut'.\n * @param {String} action\n */\n\n }, {\n key: 'destroy',\n\n\n /**\n * Destroy lifecycle.\n */\n value: function destroy() {\n this.removeFake();\n }\n }, {\n key: 'action',\n set: function set() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'copy';\n\n this._action = action;\n\n if (this._action !== 'copy' && this._action !== 'cut') {\n throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n }\n }\n\n /**\n * Gets the `action` property.\n * @return {String}\n */\n ,\n get: function get() {\n return this._action;\n }\n\n /**\n * Sets the `target` property using an element\n * that will be have its content copied.\n * @param {Element} target\n */\n\n }, {\n key: 'target',\n set: function set(target) {\n if (target !== undefined) {\n if (target && (typeof target === 'undefined' ? 'undefined' : _typeof(target)) === 'object' && target.nodeType === 1) {\n if (this.action === 'copy' && target.hasAttribute('disabled')) {\n throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n }\n\n if (this.action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n }\n\n this._target = target;\n } else {\n throw new Error('Invalid \"target\" value, use a valid Element');\n }\n }\n }\n\n /**\n * Gets the `target` property.\n * @return {String|HTMLElement}\n */\n ,\n get: function get() {\n return this._target;\n }\n }]);\n\n return ClipboardAction;\n}();\n\n/* harmony default export */ var clipboard_action = (clipboard_action_ClipboardAction);\n// EXTERNAL MODULE: ./node_modules/tiny-emitter/index.js\nvar tiny_emitter = __webpack_require__(1);\nvar tiny_emitter_default = /*#__PURE__*/__webpack_require__.n(tiny_emitter);\n\n// EXTERNAL MODULE: ./node_modules/good-listener/src/listen.js\nvar listen = __webpack_require__(2);\nvar listen_default = /*#__PURE__*/__webpack_require__.n(listen);\n\n// CONCATENATED MODULE: ./src/clipboard.js\nvar clipboard_typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar clipboard_createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction clipboard_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }\n\n\n\n\n\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\nvar clipboard_Clipboard = function (_Emitter) {\n _inherits(Clipboard, _Emitter);\n\n /**\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n * @param {Object} options\n */\n function Clipboard(trigger, options) {\n clipboard_classCallCheck(this, Clipboard);\n\n var _this = _possibleConstructorReturn(this, (Clipboard.__proto__ || Object.getPrototypeOf(Clipboard)).call(this));\n\n _this.resolveOptions(options);\n _this.listenClick(trigger);\n return _this;\n }\n\n /**\n * Defines if attributes would be resolved using internal setter functions\n * or custom functions that were passed in the constructor.\n * @param {Object} options\n */\n\n\n clipboard_createClass(Clipboard, [{\n key: 'resolveOptions',\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n }\n\n /**\n * Adds a click event listener to the passed trigger.\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n */\n\n }, {\n key: 'listenClick',\n value: function listenClick(trigger) {\n var _this2 = this;\n\n this.listener = listen_default()(trigger, 'click', function (e) {\n return _this2.onClick(e);\n });\n }\n\n /**\n * Defines a new `ClipboardAction` on each click event.\n * @param {Event} e\n */\n\n }, {\n key: 'onClick',\n value: function onClick(e) {\n var trigger = e.delegateTarget || e.currentTarget;\n\n if (this.clipboardAction) {\n this.clipboardAction = null;\n }\n\n this.clipboardAction = new clipboard_action({\n action: this.action(trigger),\n target: this.target(trigger),\n text: this.text(trigger),\n container: this.container,\n trigger: trigger,\n emitter: this\n });\n }\n\n /**\n * Default `action` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: 'defaultAction',\n value: function defaultAction(trigger) {\n return getAttributeValue('action', trigger);\n }\n\n /**\n * Default `target` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: 'defaultTarget',\n value: function defaultTarget(trigger) {\n var selector = getAttributeValue('target', trigger);\n\n if (selector) {\n return document.querySelector(selector);\n }\n }\n\n /**\n * Returns the support of the given action, or all actions if no action is\n * given.\n * @param {String} [action]\n */\n\n }, {\n key: 'defaultText',\n\n\n /**\n * Default `text` lookup function.\n * @param {Element} trigger\n */\n value: function defaultText(trigger) {\n return getAttributeValue('text', trigger);\n }\n\n /**\n * Destroy lifecycle.\n */\n\n }, {\n key: 'destroy',\n value: function destroy() {\n this.listener.destroy();\n\n if (this.clipboardAction) {\n this.clipboardAction.destroy();\n this.clipboardAction = null;\n }\n }\n }], [{\n key: 'isSupported',\n value: function isSupported() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n\n var actions = typeof action === 'string' ? [action] : action;\n var support = !!document.queryCommandSupported;\n\n actions.forEach(function (action) {\n support = support && !!document.queryCommandSupported(action);\n });\n\n return support;\n }\n }]);\n\n return Clipboard;\n}(tiny_emitter_default.a);\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\n\nfunction getAttributeValue(suffix, element) {\n var attribute = 'data-clipboard-' + suffix;\n\n if (!element.hasAttribute(attribute)) {\n return;\n }\n\n return element.getAttribute(attribute);\n}\n\n/* harmony default export */ var clipboard = __webpack_exports__[\"default\"] = (clipboard_Clipboard);\n\n/***/ })\n/******/ ])[\"default\"];\n});","import { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function of() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var scheduler = args[args.length - 1];\n if (isScheduler(scheduler)) {\n args.pop();\n return scheduleArray(args, scheduler);\n }\n else {\n return fromArray(args);\n }\n}\n//# sourceMappingURL=of.js.map","var isArray = Array.isArray;\nvar getPrototypeOf = Object.getPrototypeOf, objectProto = Object.prototype, getKeys = Object.keys;\nexport function argsArgArrayOrObject(args) {\n if (args.length === 1) {\n var first_1 = args[0];\n if (isArray(first_1)) {\n return { args: first_1, keys: null };\n }\n if (isPOJO(first_1)) {\n var keys = getKeys(first_1);\n return {\n args: keys.map(function (key) { return first_1[key]; }),\n keys: keys,\n };\n }\n }\n return { args: args, keys: null };\n}\nfunction isPOJO(obj) {\n return obj && typeof obj === 'object' && getPrototypeOf(obj) === objectProto;\n}\n//# sourceMappingURL=argsArgArrayOrObject.js.map","import { __extends } from \"tslib\";\nimport { Observable } from '../Observable';\nimport { isScheduler } from '../util/isScheduler';\nimport { argsArgArrayOrObject } from '../util/argsArgArrayOrObject';\nimport { Subscriber } from '../Subscriber';\nimport { from } from './from';\nimport { identity } from '../util/identity';\nimport { mapOneOrManyArgs } from '../util/mapOneOrManyArgs';\nexport function combineLatest() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var resultSelector = undefined;\n var scheduler = undefined;\n if (isScheduler(args[args.length - 1])) {\n scheduler = args.pop();\n }\n if (typeof args[args.length - 1] === 'function') {\n resultSelector = args.pop();\n }\n var _a = argsArgArrayOrObject(args), observables = _a.args, keys = _a.keys;\n var result = new Observable(combineLatestInit(observables, scheduler, keys\n ?\n function (args) {\n var value = {};\n for (var i = 0; i < args.length; i++) {\n value[keys[i]] = args[i];\n }\n return value;\n }\n :\n identity));\n if (resultSelector) {\n return result.pipe(mapOneOrManyArgs(resultSelector));\n }\n return result;\n}\nvar CombineLatestSubscriber = (function (_super) {\n __extends(CombineLatestSubscriber, _super);\n function CombineLatestSubscriber(destination, _next, shouldComplete) {\n var _this = _super.call(this, destination) || this;\n _this._next = _next;\n _this.shouldComplete = shouldComplete;\n return _this;\n }\n CombineLatestSubscriber.prototype._complete = function () {\n if (this.shouldComplete()) {\n _super.prototype._complete.call(this);\n }\n else {\n this.unsubscribe();\n }\n };\n return CombineLatestSubscriber;\n}(Subscriber));\nexport function combineLatestInit(observables, scheduler, valueTransform) {\n if (scheduler === void 0) { scheduler = undefined; }\n if (valueTransform === void 0) { valueTransform = identity; }\n return function (subscriber) {\n var primarySubscribe = function () {\n var length = observables.length;\n var values = new Array(length);\n var active = length;\n var hasValues = observables.map(function () { return false; });\n var waitingForFirstValues = true;\n var emit = function () { return subscriber.next(valueTransform(values.slice())); };\n var _loop_1 = function (i) {\n var subscribe = function () {\n var source = from(observables[i], scheduler);\n source.subscribe(new CombineLatestSubscriber(subscriber, function (value) {\n values[i] = value;\n if (waitingForFirstValues) {\n hasValues[i] = true;\n waitingForFirstValues = !hasValues.every(identity);\n }\n if (!waitingForFirstValues) {\n emit();\n }\n }, function () { return --active === 0; }));\n };\n maybeSchedule(scheduler, subscribe, subscriber);\n };\n for (var i = 0; i < length; i++) {\n _loop_1(i);\n }\n };\n maybeSchedule(scheduler, primarySubscribe, subscriber);\n };\n}\nfunction maybeSchedule(scheduler, execute, subscription) {\n if (scheduler) {\n subscription.add(scheduler.schedule(execute));\n }\n else {\n execute();\n }\n}\n//# sourceMappingURL=combineLatest.js.map","import { __extends } from \"tslib\";\nimport { Subject } from './Subject';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\nvar ReplaySubject = (function (_super) {\n __extends(ReplaySubject, _super);\n function ReplaySubject(bufferSize, windowTime, timestampProvider) {\n if (bufferSize === void 0) { bufferSize = Infinity; }\n if (windowTime === void 0) { windowTime = Infinity; }\n if (timestampProvider === void 0) { timestampProvider = dateTimestampProvider; }\n var _this = _super.call(this) || this;\n _this.bufferSize = bufferSize;\n _this.windowTime = windowTime;\n _this.timestampProvider = timestampProvider;\n _this.buffer = [];\n _this.infiniteTimeWindow = true;\n _this.infiniteTimeWindow = windowTime === Infinity;\n _this.bufferSize = Math.max(1, bufferSize);\n _this.windowTime = Math.max(1, windowTime);\n return _this;\n }\n ReplaySubject.prototype.next = function (value) {\n var _a = this, isStopped = _a.isStopped, buffer = _a.buffer, infiniteTimeWindow = _a.infiniteTimeWindow, timestampProvider = _a.timestampProvider, windowTime = _a.windowTime;\n if (!isStopped) {\n buffer.push(value);\n !infiniteTimeWindow && buffer.push(timestampProvider.now() + windowTime);\n }\n this.trimBuffer();\n _super.prototype.next.call(this, value);\n };\n ReplaySubject.prototype._subscribe = function (subscriber) {\n this._throwIfClosed();\n this.trimBuffer();\n var subscription = this._innerSubscribe(subscriber);\n var _a = this, infiniteTimeWindow = _a.infiniteTimeWindow, buffer = _a.buffer;\n var copy = buffer.slice();\n for (var i = 0; i < copy.length && !subscriber.closed; i += infiniteTimeWindow ? 1 : 2) {\n subscriber.next(copy[i]);\n }\n this._checkFinalizedStatuses(subscriber);\n return subscription;\n };\n ReplaySubject.prototype.trimBuffer = function () {\n var _a = this, bufferSize = _a.bufferSize, timestampProvider = _a.timestampProvider, buffer = _a.buffer, infiniteTimeWindow = _a.infiniteTimeWindow;\n var adjustedBufferSize = (infiniteTimeWindow ? 1 : 2) * bufferSize;\n bufferSize < Infinity && adjustedBufferSize < buffer.length && buffer.splice(0, buffer.length - adjustedBufferSize);\n if (!infiniteTimeWindow) {\n var now = timestampProvider.now();\n var last = 0;\n for (var i = 1; i < buffer.length && buffer[i] <= now; i += 2) {\n last = i;\n }\n last && buffer.splice(0, last + 1);\n }\n };\n return ReplaySubject;\n}(Subject));\nexport { ReplaySubject };\n//# sourceMappingURL=ReplaySubject.js.map","/**\r\n * A collection of shims that provide minimal functionality of the ES6 collections.\r\n *\r\n * These implementations are not meant to be used outside of the ResizeObserver\r\n * modules as they cover only a limited range of use cases.\r\n */\r\n/* eslint-disable require-jsdoc, valid-jsdoc */\r\nvar MapShim = (function () {\r\n if (typeof Map !== 'undefined') {\r\n return Map;\r\n }\r\n /**\r\n * Returns index in provided array that matches the specified key.\r\n *\r\n * @param {Array} arr\r\n * @param {*} key\r\n * @returns {number}\r\n */\r\n function getIndex(arr, key) {\r\n var result = -1;\r\n arr.some(function (entry, index) {\r\n if (entry[0] === key) {\r\n result = index;\r\n return true;\r\n }\r\n return false;\r\n });\r\n return result;\r\n }\r\n return /** @class */ (function () {\r\n function class_1() {\r\n this.__entries__ = [];\r\n }\r\n Object.defineProperty(class_1.prototype, \"size\", {\r\n /**\r\n * @returns {boolean}\r\n */\r\n get: function () {\r\n return this.__entries__.length;\r\n },\r\n enumerable: true,\r\n configurable: true\r\n });\r\n /**\r\n * @param {*} key\r\n * @returns {*}\r\n */\r\n class_1.prototype.get = function (key) {\r\n var index = getIndex(this.__entries__, key);\r\n var entry = this.__entries__[index];\r\n return entry && entry[1];\r\n };\r\n /**\r\n * @param {*} key\r\n * @param {*} value\r\n * @returns {void}\r\n */\r\n class_1.prototype.set = function (key, value) {\r\n var index = getIndex(this.__entries__, key);\r\n if (~index) {\r\n this.__entries__[index][1] = value;\r\n }\r\n else {\r\n this.__entries__.push([key, value]);\r\n }\r\n };\r\n /**\r\n * @param {*} key\r\n * @returns {void}\r\n */\r\n class_1.prototype.delete = function (key) {\r\n var entries = this.__entries__;\r\n var index = getIndex(entries, key);\r\n if (~index) {\r\n entries.splice(index, 1);\r\n }\r\n };\r\n /**\r\n * @param {*} key\r\n * @returns {void}\r\n */\r\n class_1.prototype.has = function (key) {\r\n return !!~getIndex(this.__entries__, key);\r\n };\r\n /**\r\n * @returns {void}\r\n */\r\n class_1.prototype.clear = function () {\r\n this.__entries__.splice(0);\r\n };\r\n /**\r\n * @param {Function} callback\r\n * @param {*} [ctx=null]\r\n * @returns {void}\r\n */\r\n class_1.prototype.forEach = function (callback, ctx) {\r\n if (ctx === void 0) { ctx = null; }\r\n for (var _i = 0, _a = this.__entries__; _i < _a.length; _i++) {\r\n var entry = _a[_i];\r\n callback.call(ctx, entry[1], entry[0]);\r\n }\r\n };\r\n return class_1;\r\n }());\r\n})();\n\n/**\r\n * Detects whether window and document objects are available in current environment.\r\n */\r\nvar isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && window.document === document;\n\n// Returns global object of a current environment.\r\nvar global$1 = (function () {\r\n if (typeof global !== 'undefined' && global.Math === Math) {\r\n return global;\r\n }\r\n if (typeof self !== 'undefined' && self.Math === Math) {\r\n return self;\r\n }\r\n if (typeof window !== 'undefined' && window.Math === Math) {\r\n return window;\r\n }\r\n // eslint-disable-next-line no-new-func\r\n return Function('return this')();\r\n})();\n\n/**\r\n * A shim for the requestAnimationFrame which falls back to the setTimeout if\r\n * first one is not supported.\r\n *\r\n * @returns {number} Requests' identifier.\r\n */\r\nvar requestAnimationFrame$1 = (function () {\r\n if (typeof requestAnimationFrame === 'function') {\r\n // It's required to use a bounded function because IE sometimes throws\r\n // an \"Invalid calling object\" error if rAF is invoked without the global\r\n // object on the left hand side.\r\n return requestAnimationFrame.bind(global$1);\r\n }\r\n return function (callback) { return setTimeout(function () { return callback(Date.now()); }, 1000 / 60); };\r\n})();\n\n// Defines minimum timeout before adding a trailing call.\r\nvar trailingTimeout = 2;\r\n/**\r\n * Creates a wrapper function which ensures that provided callback will be\r\n * invoked only once during the specified delay period.\r\n *\r\n * @param {Function} callback - Function to be invoked after the delay period.\r\n * @param {number} delay - Delay after which to invoke callback.\r\n * @returns {Function}\r\n */\r\nfunction throttle (callback, delay) {\r\n var leadingCall = false, trailingCall = false, lastCallTime = 0;\r\n /**\r\n * Invokes the original callback function and schedules new invocation if\r\n * the \"proxy\" was called during current request.\r\n *\r\n * @returns {void}\r\n */\r\n function resolvePending() {\r\n if (leadingCall) {\r\n leadingCall = false;\r\n callback();\r\n }\r\n if (trailingCall) {\r\n proxy();\r\n }\r\n }\r\n /**\r\n * Callback invoked after the specified delay. It will further postpone\r\n * invocation of the original function delegating it to the\r\n * requestAnimationFrame.\r\n *\r\n * @returns {void}\r\n */\r\n function timeoutCallback() {\r\n requestAnimationFrame$1(resolvePending);\r\n }\r\n /**\r\n * Schedules invocation of the original function.\r\n *\r\n * @returns {void}\r\n */\r\n function proxy() {\r\n var timeStamp = Date.now();\r\n if (leadingCall) {\r\n // Reject immediately following calls.\r\n if (timeStamp - lastCallTime < trailingTimeout) {\r\n return;\r\n }\r\n // Schedule new call to be in invoked when the pending one is resolved.\r\n // This is important for \"transitions\" which never actually start\r\n // immediately so there is a chance that we might miss one if change\r\n // happens amids the pending invocation.\r\n trailingCall = true;\r\n }\r\n else {\r\n leadingCall = true;\r\n trailingCall = false;\r\n setTimeout(timeoutCallback, delay);\r\n }\r\n lastCallTime = timeStamp;\r\n }\r\n return proxy;\r\n}\n\n// Minimum delay before invoking the update of observers.\r\nvar REFRESH_DELAY = 20;\r\n// A list of substrings of CSS properties used to find transition events that\r\n// might affect dimensions of observed elements.\r\nvar transitionKeys = ['top', 'right', 'bottom', 'left', 'width', 'height', 'size', 'weight'];\r\n// Check if MutationObserver is available.\r\nvar mutationObserverSupported = typeof MutationObserver !== 'undefined';\r\n/**\r\n * Singleton controller class which handles updates of ResizeObserver instances.\r\n */\r\nvar ResizeObserverController = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserverController.\r\n *\r\n * @private\r\n */\r\n function ResizeObserverController() {\r\n /**\r\n * Indicates whether DOM listeners have been added.\r\n *\r\n * @private {boolean}\r\n */\r\n this.connected_ = false;\r\n /**\r\n * Tells that controller has subscribed for Mutation Events.\r\n *\r\n * @private {boolean}\r\n */\r\n this.mutationEventsAdded_ = false;\r\n /**\r\n * Keeps reference to the instance of MutationObserver.\r\n *\r\n * @private {MutationObserver}\r\n */\r\n this.mutationsObserver_ = null;\r\n /**\r\n * A list of connected observers.\r\n *\r\n * @private {Array}\r\n */\r\n this.observers_ = [];\r\n this.onTransitionEnd_ = this.onTransitionEnd_.bind(this);\r\n this.refresh = throttle(this.refresh.bind(this), REFRESH_DELAY);\r\n }\r\n /**\r\n * Adds observer to observers list.\r\n *\r\n * @param {ResizeObserverSPI} observer - Observer to be added.\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.addObserver = function (observer) {\r\n if (!~this.observers_.indexOf(observer)) {\r\n this.observers_.push(observer);\r\n }\r\n // Add listeners if they haven't been added yet.\r\n if (!this.connected_) {\r\n this.connect_();\r\n }\r\n };\r\n /**\r\n * Removes observer from observers list.\r\n *\r\n * @param {ResizeObserverSPI} observer - Observer to be removed.\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.removeObserver = function (observer) {\r\n var observers = this.observers_;\r\n var index = observers.indexOf(observer);\r\n // Remove observer if it's present in registry.\r\n if (~index) {\r\n observers.splice(index, 1);\r\n }\r\n // Remove listeners if controller has no connected observers.\r\n if (!observers.length && this.connected_) {\r\n this.disconnect_();\r\n }\r\n };\r\n /**\r\n * Invokes the update of observers. It will continue running updates insofar\r\n * it detects changes.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.refresh = function () {\r\n var changesDetected = this.updateObservers_();\r\n // Continue running updates if changes have been detected as there might\r\n // be future ones caused by CSS transitions.\r\n if (changesDetected) {\r\n this.refresh();\r\n }\r\n };\r\n /**\r\n * Updates every observer from observers list and notifies them of queued\r\n * entries.\r\n *\r\n * @private\r\n * @returns {boolean} Returns \"true\" if any observer has detected changes in\r\n * dimensions of it's elements.\r\n */\r\n ResizeObserverController.prototype.updateObservers_ = function () {\r\n // Collect observers that have active observations.\r\n var activeObservers = this.observers_.filter(function (observer) {\r\n return observer.gatherActive(), observer.hasActive();\r\n });\r\n // Deliver notifications in a separate cycle in order to avoid any\r\n // collisions between observers, e.g. when multiple instances of\r\n // ResizeObserver are tracking the same element and the callback of one\r\n // of them changes content dimensions of the observed target. Sometimes\r\n // this may result in notifications being blocked for the rest of observers.\r\n activeObservers.forEach(function (observer) { return observer.broadcastActive(); });\r\n return activeObservers.length > 0;\r\n };\r\n /**\r\n * Initializes DOM listeners.\r\n *\r\n * @private\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.connect_ = function () {\r\n // Do nothing if running in a non-browser environment or if listeners\r\n // have been already added.\r\n if (!isBrowser || this.connected_) {\r\n return;\r\n }\r\n // Subscription to the \"Transitionend\" event is used as a workaround for\r\n // delayed transitions. This way it's possible to capture at least the\r\n // final state of an element.\r\n document.addEventListener('transitionend', this.onTransitionEnd_);\r\n window.addEventListener('resize', this.refresh);\r\n if (mutationObserverSupported) {\r\n this.mutationsObserver_ = new MutationObserver(this.refresh);\r\n this.mutationsObserver_.observe(document, {\r\n attributes: true,\r\n childList: true,\r\n characterData: true,\r\n subtree: true\r\n });\r\n }\r\n else {\r\n document.addEventListener('DOMSubtreeModified', this.refresh);\r\n this.mutationEventsAdded_ = true;\r\n }\r\n this.connected_ = true;\r\n };\r\n /**\r\n * Removes DOM listeners.\r\n *\r\n * @private\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.disconnect_ = function () {\r\n // Do nothing if running in a non-browser environment or if listeners\r\n // have been already removed.\r\n if (!isBrowser || !this.connected_) {\r\n return;\r\n }\r\n document.removeEventListener('transitionend', this.onTransitionEnd_);\r\n window.removeEventListener('resize', this.refresh);\r\n if (this.mutationsObserver_) {\r\n this.mutationsObserver_.disconnect();\r\n }\r\n if (this.mutationEventsAdded_) {\r\n document.removeEventListener('DOMSubtreeModified', this.refresh);\r\n }\r\n this.mutationsObserver_ = null;\r\n this.mutationEventsAdded_ = false;\r\n this.connected_ = false;\r\n };\r\n /**\r\n * \"Transitionend\" event handler.\r\n *\r\n * @private\r\n * @param {TransitionEvent} event\r\n * @returns {void}\r\n */\r\n ResizeObserverController.prototype.onTransitionEnd_ = function (_a) {\r\n var _b = _a.propertyName, propertyName = _b === void 0 ? '' : _b;\r\n // Detect whether transition may affect dimensions of an element.\r\n var isReflowProperty = transitionKeys.some(function (key) {\r\n return !!~propertyName.indexOf(key);\r\n });\r\n if (isReflowProperty) {\r\n this.refresh();\r\n }\r\n };\r\n /**\r\n * Returns instance of the ResizeObserverController.\r\n *\r\n * @returns {ResizeObserverController}\r\n */\r\n ResizeObserverController.getInstance = function () {\r\n if (!this.instance_) {\r\n this.instance_ = new ResizeObserverController();\r\n }\r\n return this.instance_;\r\n };\r\n /**\r\n * Holds reference to the controller's instance.\r\n *\r\n * @private {ResizeObserverController}\r\n */\r\n ResizeObserverController.instance_ = null;\r\n return ResizeObserverController;\r\n}());\n\n/**\r\n * Defines non-writable/enumerable properties of the provided target object.\r\n *\r\n * @param {Object} target - Object for which to define properties.\r\n * @param {Object} props - Properties to be defined.\r\n * @returns {Object} Target object.\r\n */\r\nvar defineConfigurable = (function (target, props) {\r\n for (var _i = 0, _a = Object.keys(props); _i < _a.length; _i++) {\r\n var key = _a[_i];\r\n Object.defineProperty(target, key, {\r\n value: props[key],\r\n enumerable: false,\r\n writable: false,\r\n configurable: true\r\n });\r\n }\r\n return target;\r\n});\n\n/**\r\n * Returns the global object associated with provided element.\r\n *\r\n * @param {Object} target\r\n * @returns {Object}\r\n */\r\nvar getWindowOf = (function (target) {\r\n // Assume that the element is an instance of Node, which means that it\r\n // has the \"ownerDocument\" property from which we can retrieve a\r\n // corresponding global object.\r\n var ownerGlobal = target && target.ownerDocument && target.ownerDocument.defaultView;\r\n // Return the local global object if it's not possible extract one from\r\n // provided element.\r\n return ownerGlobal || global$1;\r\n});\n\n// Placeholder of an empty content rectangle.\r\nvar emptyRect = createRectInit(0, 0, 0, 0);\r\n/**\r\n * Converts provided string to a number.\r\n *\r\n * @param {number|string} value\r\n * @returns {number}\r\n */\r\nfunction toFloat(value) {\r\n return parseFloat(value) || 0;\r\n}\r\n/**\r\n * Extracts borders size from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @param {...string} positions - Borders positions (top, right, ...)\r\n * @returns {number}\r\n */\r\nfunction getBordersSize(styles) {\r\n var positions = [];\r\n for (var _i = 1; _i < arguments.length; _i++) {\r\n positions[_i - 1] = arguments[_i];\r\n }\r\n return positions.reduce(function (size, position) {\r\n var value = styles['border-' + position + '-width'];\r\n return size + toFloat(value);\r\n }, 0);\r\n}\r\n/**\r\n * Extracts paddings sizes from provided styles.\r\n *\r\n * @param {CSSStyleDeclaration} styles\r\n * @returns {Object} Paddings box.\r\n */\r\nfunction getPaddings(styles) {\r\n var positions = ['top', 'right', 'bottom', 'left'];\r\n var paddings = {};\r\n for (var _i = 0, positions_1 = positions; _i < positions_1.length; _i++) {\r\n var position = positions_1[_i];\r\n var value = styles['padding-' + position];\r\n paddings[position] = toFloat(value);\r\n }\r\n return paddings;\r\n}\r\n/**\r\n * Calculates content rectangle of provided SVG element.\r\n *\r\n * @param {SVGGraphicsElement} target - Element content rectangle of which needs\r\n * to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getSVGContentRect(target) {\r\n var bbox = target.getBBox();\r\n return createRectInit(0, 0, bbox.width, bbox.height);\r\n}\r\n/**\r\n * Calculates content rectangle of provided HTMLElement.\r\n *\r\n * @param {HTMLElement} target - Element for which to calculate the content rectangle.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getHTMLElementContentRect(target) {\r\n // Client width & height properties can't be\r\n // used exclusively as they provide rounded values.\r\n var clientWidth = target.clientWidth, clientHeight = target.clientHeight;\r\n // By this condition we can catch all non-replaced inline, hidden and\r\n // detached elements. Though elements with width & height properties less\r\n // than 0.5 will be discarded as well.\r\n //\r\n // Without it we would need to implement separate methods for each of\r\n // those cases and it's not possible to perform a precise and performance\r\n // effective test for hidden elements. E.g. even jQuery's ':visible' filter\r\n // gives wrong results for elements with width & height less than 0.5.\r\n if (!clientWidth && !clientHeight) {\r\n return emptyRect;\r\n }\r\n var styles = getWindowOf(target).getComputedStyle(target);\r\n var paddings = getPaddings(styles);\r\n var horizPad = paddings.left + paddings.right;\r\n var vertPad = paddings.top + paddings.bottom;\r\n // Computed styles of width & height are being used because they are the\r\n // only dimensions available to JS that contain non-rounded values. It could\r\n // be possible to utilize the getBoundingClientRect if only it's data wasn't\r\n // affected by CSS transformations let alone paddings, borders and scroll bars.\r\n var width = toFloat(styles.width), height = toFloat(styles.height);\r\n // Width & height include paddings and borders when the 'border-box' box\r\n // model is applied (except for IE).\r\n if (styles.boxSizing === 'border-box') {\r\n // Following conditions are required to handle Internet Explorer which\r\n // doesn't include paddings and borders to computed CSS dimensions.\r\n //\r\n // We can say that if CSS dimensions + paddings are equal to the \"client\"\r\n // properties then it's either IE, and thus we don't need to subtract\r\n // anything, or an element merely doesn't have paddings/borders styles.\r\n if (Math.round(width + horizPad) !== clientWidth) {\r\n width -= getBordersSize(styles, 'left', 'right') + horizPad;\r\n }\r\n if (Math.round(height + vertPad) !== clientHeight) {\r\n height -= getBordersSize(styles, 'top', 'bottom') + vertPad;\r\n }\r\n }\r\n // Following steps can't be applied to the document's root element as its\r\n // client[Width/Height] properties represent viewport area of the window.\r\n // Besides, it's as well not necessary as the itself neither has\r\n // rendered scroll bars nor it can be clipped.\r\n if (!isDocumentElement(target)) {\r\n // In some browsers (only in Firefox, actually) CSS width & height\r\n // include scroll bars size which can be removed at this step as scroll\r\n // bars are the only difference between rounded dimensions + paddings\r\n // and \"client\" properties, though that is not always true in Chrome.\r\n var vertScrollbar = Math.round(width + horizPad) - clientWidth;\r\n var horizScrollbar = Math.round(height + vertPad) - clientHeight;\r\n // Chrome has a rather weird rounding of \"client\" properties.\r\n // E.g. for an element with content width of 314.2px it sometimes gives\r\n // the client width of 315px and for the width of 314.7px it may give\r\n // 314px. And it doesn't happen all the time. So just ignore this delta\r\n // as a non-relevant.\r\n if (Math.abs(vertScrollbar) !== 1) {\r\n width -= vertScrollbar;\r\n }\r\n if (Math.abs(horizScrollbar) !== 1) {\r\n height -= horizScrollbar;\r\n }\r\n }\r\n return createRectInit(paddings.left, paddings.top, width, height);\r\n}\r\n/**\r\n * Checks whether provided element is an instance of the SVGGraphicsElement.\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nvar isSVGGraphicsElement = (function () {\r\n // Some browsers, namely IE and Edge, don't have the SVGGraphicsElement\r\n // interface.\r\n if (typeof SVGGraphicsElement !== 'undefined') {\r\n return function (target) { return target instanceof getWindowOf(target).SVGGraphicsElement; };\r\n }\r\n // If it's so, then check that element is at least an instance of the\r\n // SVGElement and that it has the \"getBBox\" method.\r\n // eslint-disable-next-line no-extra-parens\r\n return function (target) { return (target instanceof getWindowOf(target).SVGElement &&\r\n typeof target.getBBox === 'function'); };\r\n})();\r\n/**\r\n * Checks whether provided element is a document element ().\r\n *\r\n * @param {Element} target - Element to be checked.\r\n * @returns {boolean}\r\n */\r\nfunction isDocumentElement(target) {\r\n return target === getWindowOf(target).document.documentElement;\r\n}\r\n/**\r\n * Calculates an appropriate content rectangle for provided html or svg element.\r\n *\r\n * @param {Element} target - Element content rectangle of which needs to be calculated.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction getContentRect(target) {\r\n if (!isBrowser) {\r\n return emptyRect;\r\n }\r\n if (isSVGGraphicsElement(target)) {\r\n return getSVGContentRect(target);\r\n }\r\n return getHTMLElementContentRect(target);\r\n}\r\n/**\r\n * Creates rectangle with an interface of the DOMRectReadOnly.\r\n * Spec: https://drafts.fxtf.org/geometry/#domrectreadonly\r\n *\r\n * @param {DOMRectInit} rectInit - Object with rectangle's x/y coordinates and dimensions.\r\n * @returns {DOMRectReadOnly}\r\n */\r\nfunction createReadOnlyRect(_a) {\r\n var x = _a.x, y = _a.y, width = _a.width, height = _a.height;\r\n // If DOMRectReadOnly is available use it as a prototype for the rectangle.\r\n var Constr = typeof DOMRectReadOnly !== 'undefined' ? DOMRectReadOnly : Object;\r\n var rect = Object.create(Constr.prototype);\r\n // Rectangle's properties are not writable and non-enumerable.\r\n defineConfigurable(rect, {\r\n x: x, y: y, width: width, height: height,\r\n top: y,\r\n right: x + width,\r\n bottom: height + y,\r\n left: x\r\n });\r\n return rect;\r\n}\r\n/**\r\n * Creates DOMRectInit object based on the provided dimensions and the x/y coordinates.\r\n * Spec: https://drafts.fxtf.org/geometry/#dictdef-domrectinit\r\n *\r\n * @param {number} x - X coordinate.\r\n * @param {number} y - Y coordinate.\r\n * @param {number} width - Rectangle's width.\r\n * @param {number} height - Rectangle's height.\r\n * @returns {DOMRectInit}\r\n */\r\nfunction createRectInit(x, y, width, height) {\r\n return { x: x, y: y, width: width, height: height };\r\n}\n\n/**\r\n * Class that is responsible for computations of the content rectangle of\r\n * provided DOM element and for keeping track of it's changes.\r\n */\r\nvar ResizeObservation = /** @class */ (function () {\r\n /**\r\n * Creates an instance of ResizeObservation.\r\n *\r\n * @param {Element} target - Element to be observed.\r\n */\r\n function ResizeObservation(target) {\r\n /**\r\n * Broadcasted width of content rectangle.\r\n *\r\n * @type {number}\r\n */\r\n this.broadcastWidth = 0;\r\n /**\r\n * Broadcasted height of content rectangle.\r\n *\r\n * @type {number}\r\n */\r\n this.broadcastHeight = 0;\r\n /**\r\n * Reference to the last observed content rectangle.\r\n *\r\n * @private {DOMRectInit}\r\n */\r\n this.contentRect_ = createRectInit(0, 0, 0, 0);\r\n this.target = target;\r\n }\r\n /**\r\n * Updates content rectangle and tells whether it's width or height properties\r\n * have changed since the last broadcast.\r\n *\r\n * @returns {boolean}\r\n */\r\n ResizeObservation.prototype.isActive = function () {\r\n var rect = getContentRect(this.target);\r\n this.contentRect_ = rect;\r\n return (rect.width !== this.broadcastWidth ||\r\n rect.height !== this.broadcastHeight);\r\n };\r\n /**\r\n * Updates 'broadcastWidth' and 'broadcastHeight' properties with a data\r\n * from the corresponding properties of the last observed content rectangle.\r\n *\r\n * @returns {DOMRectInit} Last observed content rectangle.\r\n */\r\n ResizeObservation.prototype.broadcastRect = function () {\r\n var rect = this.contentRect_;\r\n this.broadcastWidth = rect.width;\r\n this.broadcastHeight = rect.height;\r\n return rect;\r\n };\r\n return ResizeObservation;\r\n}());\n\nvar ResizeObserverEntry = /** @class */ (function () {\r\n /**\r\n * Creates an instance of ResizeObserverEntry.\r\n *\r\n * @param {Element} target - Element that is being observed.\r\n * @param {DOMRectInit} rectInit - Data of the element's content rectangle.\r\n */\r\n function ResizeObserverEntry(target, rectInit) {\r\n var contentRect = createReadOnlyRect(rectInit);\r\n // According to the specification following properties are not writable\r\n // and are also not enumerable in the native implementation.\r\n //\r\n // Property accessors are not being used as they'd require to define a\r\n // private WeakMap storage which may cause memory leaks in browsers that\r\n // don't support this type of collections.\r\n defineConfigurable(this, { target: target, contentRect: contentRect });\r\n }\r\n return ResizeObserverEntry;\r\n}());\n\nvar ResizeObserverSPI = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserver.\r\n *\r\n * @param {ResizeObserverCallback} callback - Callback function that is invoked\r\n * when one of the observed elements changes it's content dimensions.\r\n * @param {ResizeObserverController} controller - Controller instance which\r\n * is responsible for the updates of observer.\r\n * @param {ResizeObserver} callbackCtx - Reference to the public\r\n * ResizeObserver instance which will be passed to callback function.\r\n */\r\n function ResizeObserverSPI(callback, controller, callbackCtx) {\r\n /**\r\n * Collection of resize observations that have detected changes in dimensions\r\n * of elements.\r\n *\r\n * @private {Array}\r\n */\r\n this.activeObservations_ = [];\r\n /**\r\n * Registry of the ResizeObservation instances.\r\n *\r\n * @private {Map}\r\n */\r\n this.observations_ = new MapShim();\r\n if (typeof callback !== 'function') {\r\n throw new TypeError('The callback provided as parameter 1 is not a function.');\r\n }\r\n this.callback_ = callback;\r\n this.controller_ = controller;\r\n this.callbackCtx_ = callbackCtx;\r\n }\r\n /**\r\n * Starts observing provided element.\r\n *\r\n * @param {Element} target - Element to be observed.\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.observe = function (target) {\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n // Do nothing if current environment doesn't have the Element interface.\r\n if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n return;\r\n }\r\n if (!(target instanceof getWindowOf(target).Element)) {\r\n throw new TypeError('parameter 1 is not of type \"Element\".');\r\n }\r\n var observations = this.observations_;\r\n // Do nothing if element is already being observed.\r\n if (observations.has(target)) {\r\n return;\r\n }\r\n observations.set(target, new ResizeObservation(target));\r\n this.controller_.addObserver(this);\r\n // Force the update of observations.\r\n this.controller_.refresh();\r\n };\r\n /**\r\n * Stops observing provided element.\r\n *\r\n * @param {Element} target - Element to stop observing.\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.unobserve = function (target) {\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n // Do nothing if current environment doesn't have the Element interface.\r\n if (typeof Element === 'undefined' || !(Element instanceof Object)) {\r\n return;\r\n }\r\n if (!(target instanceof getWindowOf(target).Element)) {\r\n throw new TypeError('parameter 1 is not of type \"Element\".');\r\n }\r\n var observations = this.observations_;\r\n // Do nothing if element is not being observed.\r\n if (!observations.has(target)) {\r\n return;\r\n }\r\n observations.delete(target);\r\n if (!observations.size) {\r\n this.controller_.removeObserver(this);\r\n }\r\n };\r\n /**\r\n * Stops observing all elements.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.disconnect = function () {\r\n this.clearActive();\r\n this.observations_.clear();\r\n this.controller_.removeObserver(this);\r\n };\r\n /**\r\n * Collects observation instances the associated element of which has changed\r\n * it's content rectangle.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.gatherActive = function () {\r\n var _this = this;\r\n this.clearActive();\r\n this.observations_.forEach(function (observation) {\r\n if (observation.isActive()) {\r\n _this.activeObservations_.push(observation);\r\n }\r\n });\r\n };\r\n /**\r\n * Invokes initial callback function with a list of ResizeObserverEntry\r\n * instances collected from active resize observations.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.broadcastActive = function () {\r\n // Do nothing if observer doesn't have active observations.\r\n if (!this.hasActive()) {\r\n return;\r\n }\r\n var ctx = this.callbackCtx_;\r\n // Create ResizeObserverEntry instance for every active observation.\r\n var entries = this.activeObservations_.map(function (observation) {\r\n return new ResizeObserverEntry(observation.target, observation.broadcastRect());\r\n });\r\n this.callback_.call(ctx, entries, ctx);\r\n this.clearActive();\r\n };\r\n /**\r\n * Clears the collection of active observations.\r\n *\r\n * @returns {void}\r\n */\r\n ResizeObserverSPI.prototype.clearActive = function () {\r\n this.activeObservations_.splice(0);\r\n };\r\n /**\r\n * Tells whether observer has active observations.\r\n *\r\n * @returns {boolean}\r\n */\r\n ResizeObserverSPI.prototype.hasActive = function () {\r\n return this.activeObservations_.length > 0;\r\n };\r\n return ResizeObserverSPI;\r\n}());\n\n// Registry of internal observers. If WeakMap is not available use current shim\r\n// for the Map collection as it has all required methods and because WeakMap\r\n// can't be fully polyfilled anyway.\r\nvar observers = typeof WeakMap !== 'undefined' ? new WeakMap() : new MapShim();\r\n/**\r\n * ResizeObserver API. Encapsulates the ResizeObserver SPI implementation\r\n * exposing only those methods and properties that are defined in the spec.\r\n */\r\nvar ResizeObserver = /** @class */ (function () {\r\n /**\r\n * Creates a new instance of ResizeObserver.\r\n *\r\n * @param {ResizeObserverCallback} callback - Callback that is invoked when\r\n * dimensions of the observed elements change.\r\n */\r\n function ResizeObserver(callback) {\r\n if (!(this instanceof ResizeObserver)) {\r\n throw new TypeError('Cannot call a class as a function.');\r\n }\r\n if (!arguments.length) {\r\n throw new TypeError('1 argument required, but only 0 present.');\r\n }\r\n var controller = ResizeObserverController.getInstance();\r\n var observer = new ResizeObserverSPI(callback, controller, this);\r\n observers.set(this, observer);\r\n }\r\n return ResizeObserver;\r\n}());\r\n// Expose public methods of ResizeObserver.\r\n[\r\n 'observe',\r\n 'unobserve',\r\n 'disconnect'\r\n].forEach(function (method) {\r\n ResizeObserver.prototype[method] = function () {\r\n var _a;\r\n return (_a = observers.get(this))[method].apply(_a, arguments);\r\n };\r\n});\n\nvar index = (function () {\r\n // Export existing implementation if available.\r\n if (typeof global$1.ResizeObserver !== 'undefined') {\r\n return global$1.ResizeObserver;\r\n }\r\n return ResizeObserver;\r\n})();\n\nexport default index;\n","import { Observable } from '../Observable';\nimport { from } from './from';\nexport function defer(observableFactory) {\n return new Observable(function (subscriber) {\n var input;\n try {\n input = observableFactory();\n }\n catch (err) {\n subscriber.error(err);\n return undefined;\n }\n var source = from(input);\n return source.subscribe(subscriber);\n });\n}\n//# sourceMappingURL=defer.js.map","/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n","import { operate } from '../util/lift';\nexport function finalize(callback) {\n return operate(function (source, subscriber) {\n source.subscribe(subscriber);\n subscriber.add(callback);\n });\n}\n//# sourceMappingURL=finalize.js.map","import { isFunction } from '../util/isFunction';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { identity } from '../util/identity';\nexport function tap(observerOrNext, error, complete) {\n var tapObserver = isFunction(observerOrNext) || error || complete ? { next: observerOrNext, error: error, complete: complete } : observerOrNext;\n return tapObserver\n ? operate(function (source, subscriber) {\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n var _a;\n (_a = tapObserver.next) === null || _a === void 0 ? void 0 : _a.call(tapObserver, value);\n subscriber.next(value);\n }, function (err) {\n var _a;\n (_a = tapObserver.error) === null || _a === void 0 ? void 0 : _a.call(tapObserver, err);\n subscriber.error(err);\n }, function () {\n var _a;\n (_a = tapObserver.complete) === null || _a === void 0 ? void 0 : _a.call(tapObserver);\n subscriber.complete();\n }));\n })\n :\n identity;\n}\n//# sourceMappingURL=tap.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function scan(accumulator, seed) {\n var hasSeed = arguments.length >= 2;\n return operate(function (source, subscriber) {\n var hasState = hasSeed;\n var state = seed;\n var index = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n var i = index++;\n subscriber.next((state = hasState\n ?\n accumulator(state, value, i)\n :\n ((hasState = true), value)));\n }));\n });\n}\n//# sourceMappingURL=scan.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function observeOn(scheduler, delay) {\n if (delay === void 0) { delay = 0; }\n return operate(function (source, subscriber) {\n source.subscribe(new OperatorSubscriber(subscriber, function (value) { return subscriber.add(scheduler.schedule(function () { return subscriber.next(value); }, delay)); }, function (err) { return subscriber.add(scheduler.schedule(function () { return subscriber.error(err); }, delay)); }, function () { return subscriber.add(scheduler.schedule(function () { return subscriber.complete(); }, delay)); }));\n });\n}\n//# sourceMappingURL=observeOn.js.map","import { Subscription } from '../Subscription';\nexport var animationFrameProvider = {\n schedule: function (callback) {\n var request = requestAnimationFrame;\n var cancel = cancelAnimationFrame;\n var delegate = animationFrameProvider.delegate;\n if (delegate) {\n request = delegate.requestAnimationFrame;\n cancel = delegate.cancelAnimationFrame;\n }\n var handle = request(function (timestamp) {\n cancel = undefined;\n callback(timestamp);\n });\n return new Subscription(function () { return cancel === null || cancel === void 0 ? void 0 : cancel(handle); });\n },\n requestAnimationFrame: function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var delegate = animationFrameProvider.delegate;\n return ((delegate === null || delegate === void 0 ? void 0 : delegate.requestAnimationFrame) || requestAnimationFrame).apply(void 0, args);\n },\n cancelAnimationFrame: function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var delegate = animationFrameProvider.delegate;\n return ((delegate === null || delegate === void 0 ? void 0 : delegate.cancelAnimationFrame) || cancelAnimationFrame).apply(void 0, args);\n },\n delegate: undefined,\n};\n//# sourceMappingURL=animationFrameProvider.js.map","import { __extends } from \"tslib\";\nimport { AsyncAction } from './AsyncAction';\nimport { animationFrameProvider } from './animationFrameProvider';\nvar AnimationFrameAction = (function (_super) {\n __extends(AnimationFrameAction, _super);\n function AnimationFrameAction(scheduler, work) {\n var _this = _super.call(this, scheduler, work) || this;\n _this.scheduler = scheduler;\n _this.work = work;\n return _this;\n }\n AnimationFrameAction.prototype.requestAsyncId = function (scheduler, id, delay) {\n if (delay === void 0) { delay = 0; }\n if (delay !== null && delay > 0) {\n return _super.prototype.requestAsyncId.call(this, scheduler, id, delay);\n }\n scheduler.actions.push(this);\n return scheduler.scheduled || (scheduler.scheduled = animationFrameProvider.requestAnimationFrame(function () { return scheduler.flush(undefined); }));\n };\n AnimationFrameAction.prototype.recycleAsyncId = function (scheduler, id, delay) {\n if (delay === void 0) { delay = 0; }\n if ((delay != null && delay > 0) || (delay == null && this.delay > 0)) {\n return _super.prototype.recycleAsyncId.call(this, scheduler, id, delay);\n }\n if (scheduler.actions.length === 0) {\n animationFrameProvider.cancelAnimationFrame(id);\n scheduler.scheduled = undefined;\n }\n return undefined;\n };\n return AnimationFrameAction;\n}(AsyncAction));\nexport { AnimationFrameAction };\n//# sourceMappingURL=AnimationFrameAction.js.map","import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nexport var animationFrameScheduler = new AnimationFrameScheduler(AnimationFrameAction);\nexport var animationFrame = animationFrameScheduler;\n//# sourceMappingURL=animationFrame.js.map","import { __extends } from \"tslib\";\nimport { AsyncScheduler } from './AsyncScheduler';\nvar AnimationFrameScheduler = (function (_super) {\n __extends(AnimationFrameScheduler, _super);\n function AnimationFrameScheduler() {\n return _super !== null && _super.apply(this, arguments) || this;\n }\n AnimationFrameScheduler.prototype.flush = function (action) {\n this.active = true;\n this.scheduled = undefined;\n var actions = this.actions;\n var error;\n var index = -1;\n action = action || actions.shift();\n var count = actions.length;\n do {\n if (error = action.execute(action.state, action.delay)) {\n break;\n }\n } while (++index < count && (action = actions.shift()));\n this.active = false;\n if (error) {\n while (++index < count && (action = actions.shift())) {\n action.unsubscribe();\n }\n throw error;\n }\n };\n return AnimationFrameScheduler;\n}(AsyncScheduler));\nexport { AnimationFrameScheduler };\n//# sourceMappingURL=AnimationFrameScheduler.js.map","(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n (factory());\n}(this, (function () { 'use strict';\n\n /**\n * Applies the :focus-visible polyfill at the given scope.\n * A scope in this case is either the top-level Document or a Shadow Root.\n *\n * @param {(Document|ShadowRoot)} scope\n * @see https://github.com/WICG/focus-visible\n */\n function applyFocusVisiblePolyfill(scope) {\n var hadKeyboardEvent = true;\n var hadFocusVisibleRecently = false;\n var hadFocusVisibleRecentlyTimeout = null;\n\n var inputTypesWhitelist = {\n text: true,\n search: true,\n url: true,\n tel: true,\n email: true,\n password: true,\n number: true,\n date: true,\n month: true,\n week: true,\n time: true,\n datetime: true,\n 'datetime-local': true\n };\n\n /**\n * Helper function for legacy browsers and iframes which sometimes focus\n * elements like document, body, and non-interactive SVG.\n * @param {Element} el\n */\n function isValidFocusTarget(el) {\n if (\n el &&\n el !== document &&\n el.nodeName !== 'HTML' &&\n el.nodeName !== 'BODY' &&\n 'classList' in el &&\n 'contains' in el.classList\n ) {\n return true;\n }\n return false;\n }\n\n /**\n * Computes whether the given element should automatically trigger the\n * `focus-visible` class being added, i.e. whether it should always match\n * `:focus-visible` when focused.\n * @param {Element} el\n * @return {boolean}\n */\n function focusTriggersKeyboardModality(el) {\n var type = el.type;\n var tagName = el.tagName;\n\n if (tagName === 'INPUT' && inputTypesWhitelist[type] && !el.readOnly) {\n return true;\n }\n\n if (tagName === 'TEXTAREA' && !el.readOnly) {\n return true;\n }\n\n if (el.isContentEditable) {\n return true;\n }\n\n return false;\n }\n\n /**\n * Add the `focus-visible` class to the given element if it was not added by\n * the author.\n * @param {Element} el\n */\n function addFocusVisibleClass(el) {\n if (el.classList.contains('focus-visible')) {\n return;\n }\n el.classList.add('focus-visible');\n el.setAttribute('data-focus-visible-added', '');\n }\n\n /**\n * Remove the `focus-visible` class from the given element if it was not\n * originally added by the author.\n * @param {Element} el\n */\n function removeFocusVisibleClass(el) {\n if (!el.hasAttribute('data-focus-visible-added')) {\n return;\n }\n el.classList.remove('focus-visible');\n el.removeAttribute('data-focus-visible-added');\n }\n\n /**\n * If the most recent user interaction was via the keyboard;\n * and the key press did not include a meta, alt/option, or control key;\n * then the modality is keyboard. Otherwise, the modality is not keyboard.\n * Apply `focus-visible` to any current active element and keep track\n * of our keyboard modality state with `hadKeyboardEvent`.\n * @param {KeyboardEvent} e\n */\n function onKeyDown(e) {\n if (e.metaKey || e.altKey || e.ctrlKey) {\n return;\n }\n\n if (isValidFocusTarget(scope.activeElement)) {\n addFocusVisibleClass(scope.activeElement);\n }\n\n hadKeyboardEvent = true;\n }\n\n /**\n * If at any point a user clicks with a pointing device, ensure that we change\n * the modality away from keyboard.\n * This avoids the situation where a user presses a key on an already focused\n * element, and then clicks on a different element, focusing it with a\n * pointing device, while we still think we're in keyboard modality.\n * @param {Event} e\n */\n function onPointerDown(e) {\n hadKeyboardEvent = false;\n }\n\n /**\n * On `focus`, add the `focus-visible` class to the target if:\n * - the target received focus as a result of keyboard navigation, or\n * - the event target is an element that will likely require interaction\n * via the keyboard (e.g. a text box)\n * @param {Event} e\n */\n function onFocus(e) {\n // Prevent IE from focusing the document or HTML element.\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (hadKeyboardEvent || focusTriggersKeyboardModality(e.target)) {\n addFocusVisibleClass(e.target);\n }\n }\n\n /**\n * On `blur`, remove the `focus-visible` class from the target.\n * @param {Event} e\n */\n function onBlur(e) {\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (\n e.target.classList.contains('focus-visible') ||\n e.target.hasAttribute('data-focus-visible-added')\n ) {\n // To detect a tab/window switch, we look for a blur event followed\n // rapidly by a visibility change.\n // If we don't see a visibility change within 100ms, it's probably a\n // regular focus change.\n hadFocusVisibleRecently = true;\n window.clearTimeout(hadFocusVisibleRecentlyTimeout);\n hadFocusVisibleRecentlyTimeout = window.setTimeout(function() {\n hadFocusVisibleRecently = false;\n }, 100);\n removeFocusVisibleClass(e.target);\n }\n }\n\n /**\n * If the user changes tabs, keep track of whether or not the previously\n * focused element had .focus-visible.\n * @param {Event} e\n */\n function onVisibilityChange(e) {\n if (document.visibilityState === 'hidden') {\n // If the tab becomes active again, the browser will handle calling focus\n // on the element (Safari actually calls it twice).\n // If this tab change caused a blur on an element with focus-visible,\n // re-apply the class when the user switches back to the tab.\n if (hadFocusVisibleRecently) {\n hadKeyboardEvent = true;\n }\n addInitialPointerMoveListeners();\n }\n }\n\n /**\n * Add a group of listeners to detect usage of any pointing devices.\n * These listeners will be added when the polyfill first loads, and anytime\n * the window is blurred, so that they are active when the window regains\n * focus.\n */\n function addInitialPointerMoveListeners() {\n document.addEventListener('mousemove', onInitialPointerMove);\n document.addEventListener('mousedown', onInitialPointerMove);\n document.addEventListener('mouseup', onInitialPointerMove);\n document.addEventListener('pointermove', onInitialPointerMove);\n document.addEventListener('pointerdown', onInitialPointerMove);\n document.addEventListener('pointerup', onInitialPointerMove);\n document.addEventListener('touchmove', onInitialPointerMove);\n document.addEventListener('touchstart', onInitialPointerMove);\n document.addEventListener('touchend', onInitialPointerMove);\n }\n\n function removeInitialPointerMoveListeners() {\n document.removeEventListener('mousemove', onInitialPointerMove);\n document.removeEventListener('mousedown', onInitialPointerMove);\n document.removeEventListener('mouseup', onInitialPointerMove);\n document.removeEventListener('pointermove', onInitialPointerMove);\n document.removeEventListener('pointerdown', onInitialPointerMove);\n document.removeEventListener('pointerup', onInitialPointerMove);\n document.removeEventListener('touchmove', onInitialPointerMove);\n document.removeEventListener('touchstart', onInitialPointerMove);\n document.removeEventListener('touchend', onInitialPointerMove);\n }\n\n /**\n * When the polfyill first loads, assume the user is in keyboard modality.\n * If any event is received from a pointing device (e.g. mouse, pointer,\n * touch), turn off keyboard modality.\n * This accounts for situations where focus enters the page from the URL bar.\n * @param {Event} e\n */\n function onInitialPointerMove(e) {\n // Work around a Safari quirk that fires a mousemove on whenever the\n // window blurs, even if you're tabbing out of the page. ¯\\_(ツ)_/¯\n if (e.target.nodeName && e.target.nodeName.toLowerCase() === 'html') {\n return;\n }\n\n hadKeyboardEvent = false;\n removeInitialPointerMoveListeners();\n }\n\n // For some kinds of state, we are interested in changes at the global scope\n // only. For example, global pointer input, global key presses and global\n // visibility change should affect the state at every scope:\n document.addEventListener('keydown', onKeyDown, true);\n document.addEventListener('mousedown', onPointerDown, true);\n document.addEventListener('pointerdown', onPointerDown, true);\n document.addEventListener('touchstart', onPointerDown, true);\n document.addEventListener('visibilitychange', onVisibilityChange, true);\n\n addInitialPointerMoveListeners();\n\n // For focus and blur, we specifically care about state changes in the local\n // scope. This is because focus / blur events that originate from within a\n // shadow root are not re-dispatched from the host element if it was already\n // the active element in its own scope:\n scope.addEventListener('focus', onFocus, true);\n scope.addEventListener('blur', onBlur, true);\n\n // We detect that a node is a ShadowRoot by ensuring that it is a\n // DocumentFragment and also has a host property. This check covers native\n // implementation and polyfill implementation transparently. If we only cared\n // about the native implementation, we could just check if the scope was\n // an instance of a ShadowRoot.\n if (scope.nodeType === Node.DOCUMENT_FRAGMENT_NODE && scope.host) {\n // Since a ShadowRoot is a special kind of DocumentFragment, it does not\n // have a root element to add a class to. So, we add this attribute to the\n // host element instead:\n scope.host.setAttribute('data-js-focus-visible', '');\n } else if (scope.nodeType === Node.DOCUMENT_NODE) {\n document.documentElement.classList.add('js-focus-visible');\n document.documentElement.setAttribute('data-js-focus-visible', '');\n }\n }\n\n // It is important to wrap all references to global window and document in\n // these checks to support server-side rendering use cases\n // @see https://github.com/WICG/focus-visible/issues/199\n if (typeof window !== 'undefined' && typeof document !== 'undefined') {\n // Make the polyfill helper globally available. This can be used as a signal\n // to interested libraries that wish to coordinate with the polyfill for e.g.,\n // applying the polyfill to a shadow root:\n window.applyFocusVisiblePolyfill = applyFocusVisiblePolyfill;\n\n // Notify interested libraries of the polyfill's presence, in case the\n // polyfill was loaded lazily:\n var event;\n\n try {\n event = new CustomEvent('focus-visible-polyfill-ready');\n } catch (error) {\n // IE11 does not support using CustomEvent as a constructor directly:\n event = document.createEvent('CustomEvent');\n event.initCustomEvent('focus-visible-polyfill-ready', false, false, {});\n }\n\n window.dispatchEvent(event);\n }\n\n if (typeof document !== 'undefined') {\n // Apply the polyfill to the global document, so that no JavaScript\n // coordination is required to use the polyfill in the top-level document:\n applyFocusVisiblePolyfill(document);\n }\n\n})));\n","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || new Function(\"return this\")();\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","import { ReplaySubject } from '../ReplaySubject';\nimport { operate } from '../util/lift';\nexport function shareReplay(configOrBufferSize, windowTime, scheduler) {\n var config;\n if (configOrBufferSize && typeof configOrBufferSize === 'object') {\n config = configOrBufferSize;\n }\n else {\n config = {\n bufferSize: configOrBufferSize,\n windowTime: windowTime,\n refCount: false,\n scheduler: scheduler\n };\n }\n return operate(shareReplayOperator(config));\n}\nfunction shareReplayOperator(_a) {\n var _b = _a.bufferSize, bufferSize = _b === void 0 ? Infinity : _b, _c = _a.windowTime, windowTime = _c === void 0 ? Infinity : _c, useRefCount = _a.refCount, scheduler = _a.scheduler;\n var subject;\n var refCount = 0;\n var subscription;\n return function (source, subscriber) {\n refCount++;\n var innerSub;\n if (!subject) {\n subject = new ReplaySubject(bufferSize, windowTime, scheduler);\n innerSub = subject.subscribe(subscriber);\n subscription = source.subscribe({\n next: function (value) { subject.next(value); },\n error: function (err) {\n var dest = subject;\n subscription = undefined;\n subject = undefined;\n dest.error(err);\n },\n complete: function () {\n subscription = undefined;\n subject.complete();\n },\n });\n if (subscription.closed) {\n subscription = undefined;\n }\n }\n else {\n innerSub = subject.subscribe(subscriber);\n }\n subscriber.add(function () {\n refCount--;\n innerSub.unsubscribe();\n if (useRefCount && refCount === 0 && subscription) {\n subscription.unsubscribe();\n subscription = undefined;\n subject = undefined;\n }\n });\n };\n}\n//# sourceMappingURL=shareReplay.js.map","import { distinctUntilChanged } from './distinctUntilChanged';\nexport function distinctUntilKeyChanged(key, compare) {\n return distinctUntilChanged(function (x, y) { return compare ? compare(x[key], y[key]) : x[key] === y[key]; });\n}\n//# sourceMappingURL=distinctUntilKeyChanged.js.map","import { __spreadArrays } from \"tslib\";\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { from } from '../observable/from';\nimport { identity } from '../util/identity';\nimport { noop } from '../util/noop';\nexport function withLatestFrom() {\n var inputs = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n inputs[_i] = arguments[_i];\n }\n var project;\n if (typeof inputs[inputs.length - 1] === 'function') {\n project = inputs.pop();\n }\n return operate(function (source, subscriber) {\n var len = inputs.length;\n var otherValues = new Array(len);\n var hasValue = inputs.map(function () { return false; });\n var ready = false;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n if (ready) {\n var values = __spreadArrays([value], otherValues);\n subscriber.next(project ? project.apply(void 0, values) : values);\n }\n }));\n var _loop_1 = function (i) {\n var input = inputs[i];\n var otherSource = void 0;\n try {\n otherSource = from(input);\n }\n catch (err) {\n subscriber.error(err);\n return { value: void 0 };\n }\n otherSource.subscribe(new OperatorSubscriber(subscriber, function (value) {\n otherValues[i] = value;\n if (!ready && !hasValue[i]) {\n hasValue[i] = true;\n (ready = hasValue.every(identity)) && (hasValue = null);\n }\n }, undefined, noop));\n };\n for (var i = 0; i < len; i++) {\n var state_1 = _loop_1(i);\n if (typeof state_1 === \"object\")\n return state_1.value;\n }\n });\n}\n//# sourceMappingURL=withLatestFrom.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { arrRemove } from '../util/arrRemove';\nexport function bufferCount(bufferSize, startBufferEvery) {\n if (startBufferEvery === void 0) { startBufferEvery = null; }\n startBufferEvery = startBufferEvery !== null && startBufferEvery !== void 0 ? startBufferEvery : bufferSize;\n return operate(function (source, subscriber) {\n var buffers = [];\n var count = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n var toEmit = null;\n if (count++ % startBufferEvery === 0) {\n buffers.push([]);\n }\n for (var _i = 0, buffers_1 = buffers; _i < buffers_1.length; _i++) {\n var buffer = buffers_1[_i];\n buffer.push(value);\n if (bufferSize <= buffer.length) {\n toEmit = toEmit !== null && toEmit !== void 0 ? toEmit : [];\n toEmit.push(buffer);\n }\n }\n if (toEmit) {\n for (var _a = 0, toEmit_1 = toEmit; _a < toEmit_1.length; _a++) {\n var buffer = toEmit_1[_a];\n arrRemove(buffers, buffer);\n subscriber.next(buffer);\n }\n }\n }, undefined, function () {\n for (var _i = 0, buffers_2 = buffers; _i < buffers_2.length; _i++) {\n var buffer = buffers_2[_i];\n subscriber.next(buffer);\n }\n subscriber.complete();\n }, function () {\n buffers = null;\n }));\n });\n}\n//# sourceMappingURL=bufferCount.js.map","import { mergeAll } from './mergeAll';\nexport function concatAll() {\n return mergeAll(1);\n}\n//# sourceMappingURL=concatAll.js.map","import { concatAll } from '../operators/concatAll';\nimport { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nexport function concat() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var scheduler;\n if (isScheduler(args[args.length - 1])) {\n scheduler = args.pop();\n }\n return concatAll()(fromArray(args, scheduler));\n}\n//# sourceMappingURL=concat.js.map","import { concat } from '../observable/concat';\nimport { isScheduler } from '../util/isScheduler';\nexport function startWith() {\n var values = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n values[_i] = arguments[_i];\n }\n var scheduler = values[values.length - 1];\n if (isScheduler(scheduler)) {\n values.pop();\n return function (source) { return concat(values, source, scheduler); };\n }\n else {\n return function (source) { return concat(values, source); };\n }\n}\n//# sourceMappingURL=startWith.js.map","import { Observable } from '../Observable';\nimport { mergeMap } from '../operators/mergeMap';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isFunction } from '../util/isFunction';\nimport { mapOneOrManyArgs } from '../util/mapOneOrManyArgs';\nimport { fromArray } from './fromArray';\nexport function fromEvent(target, eventName, options, resultSelector) {\n if (isFunction(options)) {\n resultSelector = options;\n options = undefined;\n }\n if (resultSelector) {\n return fromEvent(target, eventName, options).pipe(mapOneOrManyArgs(resultSelector));\n }\n return new Observable(function (subscriber) {\n var handler = function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n return subscriber.next(args.length > 1 ? args : args[0]);\n };\n if (isEventTarget(target)) {\n target.addEventListener(eventName, handler, options);\n return function () { return target.removeEventListener(eventName, handler, options); };\n }\n if (isJQueryStyleEventEmitter(target)) {\n target.on(eventName, handler);\n return function () { return target.off(eventName, handler); };\n }\n if (isNodeStyleEventEmitter(target)) {\n target.addListener(eventName, handler);\n return function () { return target.removeListener(eventName, handler); };\n }\n if (isArrayLike(target)) {\n return mergeMap(function (target) { return fromEvent(target, eventName, options); })(fromArray(target)).subscribe(subscriber);\n }\n subscriber.error(new TypeError('Invalid event target'));\n return;\n });\n}\nfunction isNodeStyleEventEmitter(sourceObj) {\n return sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';\n}\nfunction isJQueryStyleEventEmitter(sourceObj) {\n return sourceObj && typeof sourceObj.on === 'function' && typeof sourceObj.off === 'function';\n}\nfunction isEventTarget(sourceObj) {\n return sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';\n}\n//# sourceMappingURL=fromEvent.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function mapTo(value) {\n return operate(function (source, subscriber) {\n source.subscribe(new OperatorSubscriber(subscriber, function () { return subscriber.next(value); }));\n });\n}\n//# sourceMappingURL=mapTo.js.map","import { Observable } from '../Observable';\nimport { noop } from '../util/noop';\nexport var NEVER = new Observable(noop);\nexport function never() {\n return NEVER;\n}\n//# sourceMappingURL=never.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function filter(predicate, thisArg) {\n return operate(function (source, subscriber) {\n var index = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) { return predicate.call(thisArg, value, index++) && subscriber.next(value); }));\n });\n}\n//# sourceMappingURL=filter.js.map","import { __extends } from \"tslib\";\nimport { Subject } from './Subject';\nvar BehaviorSubject = (function (_super) {\n __extends(BehaviorSubject, _super);\n function BehaviorSubject(_value) {\n var _this = _super.call(this) || this;\n _this._value = _value;\n return _this;\n }\n Object.defineProperty(BehaviorSubject.prototype, \"value\", {\n get: function () {\n return this.getValue();\n },\n enumerable: false,\n configurable: true\n });\n BehaviorSubject.prototype._subscribe = function (subscriber) {\n var subscription = _super.prototype._subscribe.call(this, subscriber);\n !subscription.closed && subscriber.next(this._value);\n return subscription;\n };\n BehaviorSubject.prototype.getValue = function () {\n var _a = this, hasError = _a.hasError, thrownError = _a.thrownError, _value = _a._value;\n if (hasError) {\n throw thrownError;\n }\n this._throwIfClosed();\n return _value;\n };\n BehaviorSubject.prototype.next = function (value) {\n _super.prototype.next.call(this, (this._value = value));\n };\n return BehaviorSubject;\n}(Subject));\nexport { BehaviorSubject };\n//# sourceMappingURL=BehaviorSubject.js.map","import { EMPTY } from '../observable/empty';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function take(count) {\n return count <= 0\n ? function () { return EMPTY; }\n : operate(function (source, subscriber) {\n var seen = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n if (++seen <= count) {\n subscriber.next(value);\n if (count <= seen) {\n subscriber.complete();\n }\n }\n }));\n });\n}\n//# sourceMappingURL=take.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { from } from '../observable/from';\nexport var defaultThrottleConfig = {\n leading: true,\n trailing: false,\n};\nexport function throttle(durationSelector, _a) {\n var _b = _a === void 0 ? defaultThrottleConfig : _a, leading = _b.leading, trailing = _b.trailing;\n return operate(function (source, subscriber) {\n var hasValue = false;\n var sendValue = null;\n var throttled = null;\n var throttlingDone = function () {\n throttled === null || throttled === void 0 ? void 0 : throttled.unsubscribe();\n throttled = null;\n trailing && send();\n };\n var throttle = function (value) {\n return (throttled = from(durationSelector(value)).subscribe(new OperatorSubscriber(subscriber, throttlingDone, undefined, throttlingDone)));\n };\n var send = function () {\n if (hasValue) {\n subscriber.next(sendValue);\n throttle(sendValue);\n }\n hasValue = false;\n sendValue = null;\n };\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n hasValue = true;\n sendValue = value;\n !throttled && (leading ? send() : throttle(value));\n }));\n });\n}\n//# sourceMappingURL=throttle.js.map","import { switchMap } from './switchMap';\nexport function switchMapTo(innerObservable, resultSelector) {\n return resultSelector ? switchMap(function () { return innerObservable; }, resultSelector) : switchMap(function () { return innerObservable; });\n}\n//# sourceMappingURL=switchMapTo.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function sample(notifier) {\n return operate(function (source, subscriber) {\n var hasValue = false;\n var lastValue = null;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n hasValue = true;\n lastValue = value;\n }));\n var emit = function () {\n if (hasValue) {\n hasValue = false;\n var value = lastValue;\n lastValue = null;\n subscriber.next(value);\n }\n };\n notifier.subscribe(new OperatorSubscriber(subscriber, emit, undefined, emit));\n });\n}\n//# sourceMappingURL=sample.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function skip(count) {\n return operate(function (source, subscriber) {\n var seen = 0;\n source.subscribe(new OperatorSubscriber(subscriber, function (value) { return (count === seen ? subscriber.next(value) : seen++); }));\n });\n}\n//# sourceMappingURL=skip.js.map","import { from } from '../observable/from';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nimport { operate } from '../util/lift';\nexport function catchError(selector) {\n return operate(function (source, subscriber) {\n var innerSub = null;\n var syncUnsub = false;\n var handledResult;\n innerSub = source.subscribe(new OperatorSubscriber(subscriber, undefined, function (err) {\n handledResult = from(selector(err, catchError(selector)(source)));\n if (innerSub) {\n innerSub.unsubscribe();\n innerSub = null;\n handledResult.subscribe(subscriber);\n }\n else {\n syncUnsub = true;\n }\n }));\n if (syncUnsub) {\n innerSub.unsubscribe();\n innerSub = null;\n handledResult.subscribe(subscriber);\n }\n });\n}\n//# sourceMappingURL=catchError.js.map","import { asyncScheduler } from '../scheduler/async';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function debounceTime(dueTime, scheduler) {\n if (scheduler === void 0) { scheduler = asyncScheduler; }\n return operate(function (source, subscriber) {\n var hasValue = false;\n var lastValue = null;\n var debounceSubscription = null;\n var emitLastValue = function () {\n hasValue = false;\n var value = lastValue;\n lastValue = null;\n subscriber.next(value);\n };\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n debounceSubscription === null || debounceSubscription === void 0 ? void 0 : debounceSubscription.unsubscribe();\n hasValue = true;\n lastValue = value;\n subscriber.add((debounceSubscription = scheduler.schedule(function () {\n debounceSubscription = null;\n emitLastValue();\n }, dueTime)));\n }, undefined, function () {\n hasValue && emitLastValue();\n subscriber.complete();\n }));\n });\n}\n//# sourceMappingURL=debounceTime.js.map","import { mergeMap } from './mergeMap';\nexport function concatMap(project, resultSelector) {\n if (typeof resultSelector === 'function') {\n return mergeMap(project, resultSelector, 1);\n }\n return mergeMap(project, 1);\n}\n//# sourceMappingURL=concatMap.js.map","import { defer } from './defer';\nimport { EMPTY } from './empty';\nexport function iif(condition, trueResult, falseResult) {\n if (trueResult === void 0) { trueResult = EMPTY; }\n if (falseResult === void 0) { falseResult = EMPTY; }\n return defer(function () { return condition() ? trueResult : falseResult; });\n}\n//# sourceMappingURL=iif.js.map","import { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function refCount() {\n return operate(function (source, subscriber) {\n var connection = null;\n source._refCount++;\n var refCounter = new OperatorSubscriber(subscriber, undefined, undefined, undefined, function () {\n if (!source || source._refCount <= 0 || 0 < --source._refCount) {\n connection = null;\n return;\n }\n var sharedConnection = source._connection;\n var conn = connection;\n connection = null;\n if (sharedConnection && (!conn || sharedConnection === conn)) {\n sharedConnection.unsubscribe();\n }\n subscriber.unsubscribe();\n });\n source.subscribe(refCounter);\n if (!refCounter.closed) {\n connection = source.connect();\n }\n });\n}\n//# sourceMappingURL=refCount.js.map","import { __extends } from \"tslib\";\nimport { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { refCount as higherOrderRefCount } from '../operators/refCount';\nimport { OperatorSubscriber } from '../operators/OperatorSubscriber';\nvar ConnectableObservable = (function (_super) {\n __extends(ConnectableObservable, _super);\n function ConnectableObservable(source, subjectFactory) {\n var _this = _super.call(this) || this;\n _this.source = source;\n _this.subjectFactory = subjectFactory;\n _this._subject = null;\n _this._refCount = 0;\n _this._connection = null;\n return _this;\n }\n ConnectableObservable.prototype._subscribe = function (subscriber) {\n return this.getSubject().subscribe(subscriber);\n };\n ConnectableObservable.prototype.getSubject = function () {\n var subject = this._subject;\n if (!subject || subject.isStopped) {\n this._subject = this.subjectFactory();\n }\n return this._subject;\n };\n ConnectableObservable.prototype._teardown = function () {\n this._refCount = 0;\n var _connection = this._connection;\n this._subject = this._connection = null;\n _connection === null || _connection === void 0 ? void 0 : _connection.unsubscribe();\n };\n ConnectableObservable.prototype.connect = function () {\n var _this = this;\n var connection = this._connection;\n if (!connection) {\n connection = this._connection = new Subscription();\n var subject_1 = this.getSubject();\n connection.add(this.source.subscribe(new OperatorSubscriber(subject_1, undefined, function (err) {\n _this._teardown();\n subject_1.error(err);\n }, function () {\n _this._teardown();\n subject_1.complete();\n }, function () { return _this._teardown(); })));\n if (connection.closed) {\n this._connection = null;\n connection = Subscription.EMPTY;\n }\n }\n return connection;\n };\n ConnectableObservable.prototype.refCount = function () {\n return higherOrderRefCount()(this);\n };\n return ConnectableObservable;\n}(Observable));\nexport { ConnectableObservable };\n//# sourceMappingURL=ConnectableObservable.js.map","import { multicast } from './multicast';\nimport { refCount } from './refCount';\nimport { Subject } from '../Subject';\nfunction shareSubjectFactory() {\n return new Subject();\n}\nexport function share() {\n return function (source) { return refCount()(multicast(shareSubjectFactory)(source)); };\n}\n//# sourceMappingURL=share.js.map","import { ConnectableObservable } from '../observable/ConnectableObservable';\nimport { hasLift, operate } from '../util/lift';\nexport function multicast(subjectOrSubjectFactory, selector) {\n var subjectFactory = typeof subjectOrSubjectFactory === 'function' ? subjectOrSubjectFactory : function () { return subjectOrSubjectFactory; };\n if (typeof selector === 'function') {\n return operate(function (source, subscriber) {\n var subject = subjectFactory();\n selector(subject).subscribe(subscriber).add(source.subscribe(subject));\n });\n }\n return function (source) {\n var connectable = new ConnectableObservable(source, subjectFactory);\n if (hasLift(source)) {\n connectable.lift = source.lift;\n }\n connectable.source = source;\n connectable.subjectFactory = subjectFactory;\n return connectable;\n };\n}\n//# sourceMappingURL=multicast.js.map","var isArray = Array.isArray;\nexport function argsOrArgArray(args) {\n return args.length === 1 && isArray(args[0]) ? args[0] : args;\n}\n//# sourceMappingURL=argsOrArgArray.js.map","import { isScheduler } from '../util/isScheduler';\nimport { mergeAll } from '../operators/mergeAll';\nimport { fromArray } from './fromArray';\nimport { argsOrArgArray } from '../util/argsOrArgArray';\nimport { from } from './from';\nimport { EMPTY } from './empty';\nexport function merge() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var concurrent = Infinity;\n var scheduler = undefined;\n if (isScheduler(args[args.length - 1])) {\n scheduler = args.pop();\n }\n if (typeof args[args.length - 1] === 'number') {\n concurrent = args.pop();\n }\n args = argsOrArgArray(args);\n return !args.length\n ?\n EMPTY\n : args.length === 1\n ?\n from(args[0])\n :\n mergeAll(concurrent)(fromArray(args, scheduler));\n}\n//# sourceMappingURL=merge.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { from } from './from';\nexport function zip() {\n var sources = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n sources[_i] = arguments[_i];\n }\n var resultSelector = undefined;\n if (typeof sources[sources.length - 1] === 'function') {\n resultSelector = sources.pop();\n }\n return new Observable(function (subscriber) {\n var buffers = sources.map(function () { return []; });\n var completed = sources.map(function () { return false; });\n var subscription = new Subscription();\n var tryEmit = function () {\n if (buffers.every(function (buffer) { return buffer.length > 0; })) {\n var result = buffers.map(function (buffer) { return buffer.shift(); });\n if (resultSelector) {\n try {\n result = resultSelector.apply(void 0, result);\n }\n catch (err) {\n subscriber.error(err);\n return;\n }\n }\n subscriber.next(result);\n if (buffers.some(function (buffer, i) { return buffer.length === 0 && completed[i]; })) {\n subscriber.complete();\n }\n }\n };\n var _loop_1 = function (i) {\n var source = from(sources[i]);\n subscription.add(source.subscribe({\n next: function (value) {\n buffers[i].push(value);\n tryEmit();\n },\n error: function (err) { return subscriber.error(err); },\n complete: function () {\n completed[i] = true;\n if (buffers[i].length === 0) {\n subscriber.complete();\n }\n },\n }));\n };\n for (var i = 0; !subscriber.closed && i < sources.length; i++) {\n _loop_1(i);\n }\n return subscription;\n });\n}\n//# sourceMappingURL=zip.js.map","import { __spreadArrays } from \"tslib\";\nimport { zip as zipStatic } from '../observable/zip';\nimport { operate } from '../util/lift';\nexport function zip() {\n var sources = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n sources[_i] = arguments[_i];\n }\n return operate(function (source, subscriber) {\n zipStatic.apply(void 0, __spreadArrays([source], sources)).subscribe(subscriber);\n });\n}\nexport function zipWith() {\n var otherInputs = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n otherInputs[_i] = arguments[_i];\n }\n return zip.apply(void 0, otherInputs);\n}\n//# sourceMappingURL=zipWith.js.map","import { asyncScheduler } from '../scheduler/async';\nimport { isValidDate } from '../util/isDate';\nimport { operate } from '../util/lift';\nimport { OperatorSubscriber } from './OperatorSubscriber';\nexport function delay(delay, scheduler) {\n if (scheduler === void 0) { scheduler = asyncScheduler; }\n return operate(function (source, subscriber) {\n var isAbsoluteDelay = isValidDate(delay);\n var isComplete = false;\n var active = 0;\n var absoluteTimeValues = isAbsoluteDelay ? [] : null;\n var checkComplete = function () { return isComplete && !active && !(absoluteTimeValues === null || absoluteTimeValues === void 0 ? void 0 : absoluteTimeValues.length) && subscriber.complete(); };\n if (isAbsoluteDelay) {\n active++;\n subscriber.add(scheduler.schedule(function () {\n active--;\n if (absoluteTimeValues) {\n var values = absoluteTimeValues;\n absoluteTimeValues = null;\n for (var _i = 0, values_1 = values; _i < values_1.length; _i++) {\n var value = values_1[_i];\n subscriber.next(value);\n }\n }\n checkComplete();\n }, +delay - scheduler.now()));\n }\n source.subscribe(new OperatorSubscriber(subscriber, function (value) {\n if (isAbsoluteDelay) {\n absoluteTimeValues ? absoluteTimeValues.push(value) : subscriber.next(value);\n }\n else {\n active++;\n subscriber.add(scheduler.schedule(function () {\n active--;\n subscriber.next(value);\n checkComplete();\n }, delay));\n }\n }, undefined, function () {\n isComplete = true;\n checkComplete();\n }));\n return function () {\n absoluteTimeValues = null;\n };\n });\n}\n//# sourceMappingURL=delay.js.map","export function isValidDate(value) {\n return value instanceof Date && !isNaN(value);\n}\n//# sourceMappingURL=isDate.js.map"],"sourceRoot":""} \ No newline at end of file diff --git a/material/assets/manifest.json b/material/assets/manifest.json index 2ef376217..22e1313cc 100644 --- a/material/assets/manifest.json +++ b/material/assets/manifest.json @@ -1,8 +1,8 @@ { - "assets/javascripts/bundle.js": "assets/javascripts/bundle.9db80570.min.js", - "assets/javascripts/bundle.js.map": "assets/javascripts/bundle.9db80570.min.js.map", - "assets/javascripts/vendor.js": "assets/javascripts/vendor.e3b5b4d0.min.js", - "assets/javascripts/vendor.js.map": "assets/javascripts/vendor.e3b5b4d0.min.js.map", + "assets/javascripts/bundle.js": "assets/javascripts/bundle.870b014d.min.js", + "assets/javascripts/bundle.js.map": "assets/javascripts/bundle.870b014d.min.js.map", + "assets/javascripts/vendor.js": "assets/javascripts/vendor.25dd9bf1.min.js", + "assets/javascripts/vendor.js.map": "assets/javascripts/vendor.25dd9bf1.min.js.map", "assets/javascripts/worker/search.js": "assets/javascripts/worker/search.2693be28.min.js", "assets/javascripts/worker/search.js.map": "assets/javascripts/worker/search.2693be28.min.js.map", "assets/stylesheets/main.css": "assets/stylesheets/main.6a8334c2.min.css", diff --git a/material/base.html b/material/base.html index 9b45656c1..8e2469a2f 100644 --- a/material/base.html +++ b/material/base.html @@ -172,8 +172,8 @@ {% endblock %} {% block scripts %} - - + + {%- set translations = {} -%} {%- for key in [ "clipboard.copy", diff --git a/src/assets/javascripts/templates/search/index.tsx b/src/assets/javascripts/templates/search/index.tsx index 6430880c0..bde83c8a8 100644 --- a/src/assets/javascripts/templates/search/index.tsx +++ b/src/assets/javascripts/templates/search/index.tsx @@ -28,72 +28,63 @@ import { import { h, translate, truncate } from "utilities" /* ---------------------------------------------------------------------------- - * Helper function + * Helper types * ------------------------------------------------------------------------- */ /** - * Render an article document - * - * @param document - Article document - * @param teaser - Whether to render the teaser - * - * @return Element + * Render flag */ -function renderArticleDocument( - { location, title, text, terms, score }: SearchDocument & SearchMetadata, - teaser: boolean -) { - const miss = Object.keys(terms) - // tslint:disable-next-line: array-type - .reduce>((list, key) => [ - ...list, ...!terms[key] ? [{key}, " "] : [] - ], []) - return ( - -
    -
    -

    {title}

    - {teaser && text.length > 0 && -

    {truncate(text, 320)}

    - } - {teaser && miss.length > 0 && -

    - {translate("search.result.term.missing")}: {...miss.slice(0, -1)} -

    - } -
    -     - ) +const enum Flag { + TEASER = 1, /* Render teaser */ + PARENT = 2 /* Render as parent */ } +/* ---------------------------------------------------------------------------- + * Helper function + * ------------------------------------------------------------------------- */ + /** * Render a search document * * @param section - Search document + * @param flag - Render flags * * @return Element */ -function renderSection( - { location, title, text, terms, score }: SearchDocument & SearchMetadata +function renderSearchDocument( + document: SearchDocument & SearchMetadata, flag: Flag ) { - const miss = Object.keys(terms) - // tslint:disable-next-line: array-type - .reduce>((list, key) => [ - ...list, ...!terms[key] ? [{key}, " "] : [] - ], []) + const parent = flag & Flag.PARENT + const teaser = flag & Flag.TEASER + + /* Render missing query terms */ + const missing = Object.keys(document.terms) + .filter(key => !document.terms[key]) + .map(key => [{key}, " "]) + .flat() + .slice(0, -1) + + /* Render article or section, depending on flags */ + const url = document.location.replace(/%20/g, "+") return ( - -
    -

    {title}

    - {text.length > 0 && -

    {truncate(text, 320)}

    +     +
    + {parent > 0 &&
    } +

    {document.title}

    + {teaser > 0 && document.text.length > 0 && +

    + {truncate(document.text, 320)} +

    } - {miss.length > 0 && + {teaser > 0 && missing.length > 0 &&

    - {translate("search.result.term.missing")}: {...miss.slice(0, -1)} + {translate("search.result.term.missing")}: {...missing}

    }
    @@ -132,8 +123,8 @@ export function renderSearchResult( /* Render children */ const children = [ - renderArticleDocument(article, !parent && index === 0), - ...best.map(renderSection), + renderSearchDocument(article, Flag.PARENT | +(!parent && index === 0)), + ...best.map(section => renderSearchDocument(section, Flag.TEASER)), ...more.length ? [
    @@ -142,7 +133,7 @@ export function renderSearchResult( : translate("search.result.more.other", more.length) } - {...more.map(renderSection)} + {...more.map(section => renderSearchDocument(section, Flag.TEASER))}
    ] : [] ]