Fixed bug in main area observable

material/assets/manifest.json

@@ -1,6 +1,6 @@
 {
-  "assets/javascripts/bundle.js": "assets/javascripts/bundle.53f51356.min.js",
-  "assets/javascripts/bundle.js.map": "assets/javascripts/bundle.53f51356.min.js.map",
+  "assets/javascripts/bundle.js": "assets/javascripts/bundle.df0a4fb1.min.js",
+  "assets/javascripts/bundle.js.map": "assets/javascripts/bundle.df0a4fb1.min.js.map",
   "assets/javascripts/worker/packer.js": "assets/javascripts/worker/packer.c14659e8.min.js",
   "assets/javascripts/worker/packer.js.map": "assets/javascripts/worker/packer.c14659e8.min.js.map",
   "assets/javascripts/worker/search.js": "assets/javascripts/worker/search.ce66ce8d.min.js",

material/base.html

@@ -190,7 +190,7 @@
       {% endblock %}
     </div>
     {% block scripts %}
-      <script src="{{ 'assets/javascripts/bundle.53f51356.min.js' | url }}"></script>
+      <script src="{{ 'assets/javascripts/bundle.df0a4fb1.min.js' | url }}"></script>
       <script id="__lang" type="application/json">
         {%- set translations = {} -%}
         {%- for key in [

src/assets/javascripts/components/index.ts

@@ -20,8 +20,6 @@
  * IN THE SOFTWARE.
  */
 
-export * from "./_"
-export * from "./header"
 export * from "./hero"
 export * from "./tabs"
 export * from "./toc"

src/assets/javascripts/components2/main/index.ts

@@ -21,7 +21,12 @@
  */
 
 import { Observable, OperatorFunction, pipe } from "rxjs"
-import { shareReplay, switchMap } from "rxjs/operators"
+import {
+  distinctUntilKeyChanged,
+  shareReplay,
+  switchMap,
+  tap
+} from "rxjs/operators"
 
 import {
   Header,
@@ -62,11 +67,20 @@ export function mountMain(
   return pipe(
     switchMap(el => useComponent("header")
       .pipe(
-        switchMap(header => watchMain(el, { header$, viewport$ })
-          .pipe(
-            paintHeaderShadow(header)
-          )
-        )
+        switchMap(header => {
+          const main$ = watchMain(el, { header$, viewport$ })
+
+          /* Paint header shadow */
+          main$
+            .pipe(
+              distinctUntilKeyChanged("active"),
+              paintHeaderShadow(header)
+            )
+              .subscribe()
+
+          /* Return main area */
+          return main$
+        })
       )
     ),
     shareReplay(1)

src/assets/javascripts/index.ts

@@ -27,7 +27,7 @@ import "../stylesheets/app.scss"
 import "../stylesheets/app-palette.scss"
 
 import * as Clipboard from "clipboard"
-import { identity, values } from "ramda"
+import { identity, not, values } from "ramda"
 import {
   EMPTY,
   merge,
@@ -39,7 +39,9 @@ import {
   filter,
   map,
   switchMap,
-  tap
+  tap,
+  withLatestFrom,
+  switchMapTo
 } from "rxjs/operators"
 
 import {
@@ -48,7 +50,6 @@ import {
   mountTabs,
 } from "./components"
 import {
-  watchHeader,
   getElement,
   watchToggle,
   getElements,
@@ -58,17 +59,21 @@ import {
   watchViewport,
   watchKeyboard,
   watchToggleMap,
-  useToggle
+  useToggle,
+  getActiveElement,
+  mayReceiveKeyboardEvents,
+  watchMain
 } from "./observables"
 import { setupSearchWorker } from "./workers"
 import { renderSource } from "templates"
-import { not, takeIf } from "utilities"
+import { takeIf } from "utilities"
 import { renderClipboard } from "templates/clipboard"
 import { fetchGitHubStats } from "modules/source/github"
 import { renderTable } from "templates/table"
 import { setToggle } from "actions"
 import {
   Component,
+  mountHeader,
   mountMain,
   mountNavigation,
   mountSearch,
@@ -210,26 +215,13 @@ export function initialize(config: unknown) {
   if (!isConfig(config))
     throw new SyntaxError(`Invalid configuration: ${JSON.stringify(config)}`)
 
-  // TODO: WIP repo rendering
-  repository().subscribe(facts => {
-    if (facts.length) {
-      const sources = getElements(".md-source__repository")
-      sources.forEach(repo => {
-        repo.dataset.mdState = "done"
-        repo.appendChild(
-          renderSource(facts)
-        )
-      })
-    }
-  })
-
   // pass config here!?
   const document$ = watchDocument()
   const hash$ = watchLocationHash()
   const viewport$ = watchViewport()
   const tablet$ = watchMedia("(min-width: 960px)")
   const screen$ = watchMedia("(min-width: 1220px)")
-  const key$ = watchKeyboard()
+  const keyboard$ = watchKeyboard()
 
   /* ----------------------------------------------------------------------- */
 
@@ -239,7 +231,7 @@ export function initialize(config: unknown) {
   /* Create header observable */
   const header$ = useComponent("header")
     .pipe(
-      switchMap(watchHeader) // TODO: should also be the mount...
+      mountHeader()
     )
 
   const main$ = useComponent("main")
@@ -260,7 +252,6 @@ export function initialize(config: unknown) {
 
   /* ----------------------------------------------------------------------- */
 
-  // DONE (partly)
   const navigation$ = useComponent("navigation")
     .pipe(
       mountNavigation({ main$, viewport$, screen$ })
@@ -281,44 +272,63 @@ export function initialize(config: unknown) {
       mountHero({ header$, viewport$, screen$ })
     )
 
+  /* ----------------------------------------------------------------------- */
+
+  function openSearchOnHotKey() {
+    const toggle$ = useToggle("search")
+    const search$ = toggle$
+      .pipe(
+        switchMap(watchToggle)
+      )
+
+    const query$ = useComponent<HTMLInputElement>("search-query")
+
+    search$
+      .pipe(
+        filter(not),
+        switchMapTo(keyboard$),
+        filter(key => ["KeyS", "KeyF"].includes(key.code)),
+        switchMapTo(toggle$)
+      )
+        .subscribe(toggle => {
+          const el = getActiveElement()
+          if (!(el && mayReceiveKeyboardEvents(el)))
+            setToggle(toggle, true)
+        })
+
+    search$
+      .pipe(
+        filter(identity),
+        switchMapTo(keyboard$),
+        filter(key => ["Escape", "Tab"].includes(key.code)),
+        switchMapTo(toggle$),
+        withLatestFrom(query$)
+      )
+        .subscribe(([toggle, el]) => {
+          setToggle(toggle, false)
+          el.blur()
+        })
+  } // TODO: handle ALL cases in one switch case statement!
+
   const search = getElement<HTMLInputElement>("[data-md-toggle=search]")!
   const searchActive$ = useToggle("search").pipe(
     switchMap(el => watchToggle(el)),
     delay(400)
   )
 
-  // shortcodes
-  key$
-    .pipe(
-      takeIf(not(searchActive$))
-    )
-      .subscribe(key => {
-        if (
-          document.activeElement && (
-            ["TEXTAREA", "SELECT", "INPUT"].includes(
-              document.activeElement.tagName
-            ) ||
-            document.activeElement instanceof HTMLElement &&
-            document.activeElement.isContentEditable
-          )
-        ) {
-          // do nothing...
-        } else {
-          if (key.type === "KeyS" || key.type === "KeyF") {
-            setToggle(search, true)
-          }
-        }
-      })
-  // check which element is focused...
+
+  openSearchOnHotKey()
+
+
   // note that all links have tabindex=-1
-  key$
+  keyboard$
     .pipe(
       takeIf(searchActive$),
 
       /* Abort if meta key (macOS) or ctrl key (Windows) is pressed */
       tap(key => {
         console.log("jo", key)
-        if (key.type === "Enter") {
+        if (key.code === "Enter") {
           if (document.activeElement === getElement("[data-md-component=search-query]")) {
             key.claim()
             // intercept hash change after search closed
@@ -327,18 +337,20 @@ export function initialize(config: unknown) {
           }
         }
 
-        if (key.type === "ArrowUp" || key.type === "ArrowDown") {
+        if (key.code === "ArrowUp" || key.code === "ArrowDown") {
           const active = getElements("[data-md-component=search-query], [data-md-component=search-result] [href]")
           const i = Math.max(0, active.findIndex(el => el === document.activeElement))
-          const x = Math.max(0, (i + active.length + (key.type === "ArrowUp" ? -1 : +1)) % active.length)
+          const x = Math.max(0, (i + active.length + (key.code === "ArrowUp" ? -1 : +1)) % active.length)
           active[x].focus()
 
+          // pass keyboard to search result!?
+
           /* Prevent scrolling of page */
           key.claim()
 
-        } else if (key.type === "Escape" || key.type === "Tab") {
-          setToggle(search, false)
-          getElement("[data-md-component=search-query]")!.blur()
+        // } else if (key.code === "Escape" || key.code === "Tab") {
+        //   setToggle(search, false)
+        //   getElement("[data-md-component=search-query]")!.blur()
 
         } else {
           if (search.checked && document.activeElement !== getElement("[data-md-component=search-query]")) {
@@ -400,6 +412,19 @@ export function initialize(config: unknown) {
     // })
   }
 
+  // TODO: WIP repo rendering
+  repository().subscribe(facts => {
+    if (facts.length) {
+      const sources = getElements(".md-source__repository")
+      sources.forEach(repo => {
+        repo.dataset.mdState = "done"
+        repo.appendChild(
+          renderSource(facts)
+        )
+      })
+    }
+  })
+
   /* Wrap all data tables for better overflow scrolling */
   const tables = getElements<HTMLTableElement>("table:not([class])")
   const placeholder = document.createElement("table")
@@ -445,38 +470,6 @@ export function initialize(config: unknown) {
 
   /* ----------------------------------------------------------------------- */
 
-  // get headerHEIGHT! only if header is sticky!
-
-  // // lockHeader at...
-  // const direction$ = agent.viewport.offset$.pipe(
-  //   bufferCount(2, 1), // determine scroll direction
-  //   map(([{ y: y0 }, { y: y1 }]) => y1 > y0),
-  //   distinctUntilChanged(),
-  // )
-
-  // document.body.style.minHeight = "100vh"
-
-  // // if true => then + HEADER. otherwise not
-  // let last = 0
-  // combineLatest([direction$, header$]).pipe(
-  //   tap(([direction, { height }]) => { // TODO: only if sticky!
-  //     const offset = 48
-  //     console.log(window.pageYOffset, height, last)
-  //     if (Math.abs(window.pageYOffset - last) < height + offset) { // TODO: add sensitivity offset!
-  //       return
-  //     }
-  //     if (direction) {
-  //       document.body.style.height = `${window.pageYOffset + offset + height}px`
-  //     } else {
-  //       document.body.style.height = `${window.pageYOffset - offset}px` // offset
-  //     }
-  //     last = window.pageYOffset
-  //   })
-  // )
-  //   .subscribe()
-
-  // // toggle
-
   /* ----------------------------------------------------------------------- */
 
   const state = {

src/assets/javascripts/observables/agent/element/_/index.ts

@@ -55,3 +55,16 @@ export function getElements<T extends HTMLElement>(
 ): T[] {
   return Array.from(node.querySelectorAll<T>(selector))
 }
+
+/* ------------------------------------------------------------------------- */
+
+/**
+ * Retrieve the currently active element
+ *
+ * @return Element
+ */
+export function getActiveElement(): HTMLElement | undefined {
+  return document.activeElement instanceof HTMLElement
+    ? document.activeElement
+    : undefined
+}

src/assets/javascripts/observables/agent/element/focus/index.ts

@@ -23,6 +23,8 @@
 import { Observable, fromEvent, merge } from "rxjs"
 import { mapTo, shareReplay, startWith } from "rxjs/operators"
 
+import { getActiveElement } from "../_"
+
 /* ----------------------------------------------------------------------------
  * Functions
  * ------------------------------------------------------------------------- */
@@ -46,7 +48,7 @@ export function watchElementFocus(
     blur$.pipe(mapTo(false))
   )
     .pipe(
-      startWith(el === document.activeElement),
+      startWith(el === getActiveElement()),
       shareReplay(1)
     )
 }

src/assets/javascripts/observables/agent/keyboard/index.ts

@@ -31,7 +31,7 @@ import { filter, map, share } from "rxjs/operators"
  * Key
  */
 export interface Key {
-  type: string                         /* Key type */
+  code: string                         /* Key code */
   claim(): void                        /* Key claim */
 }
 
@@ -48,6 +48,30 @@ const keydown$ = fromEvent<KeyboardEvent>(window, "keydown")
  * Functions
  * ------------------------------------------------------------------------- */
 
+/**
+ * Check whether an element may receive keyboard input
+ *
+ * @param el - Element
+ *
+ * @return Test result
+ */
+export function mayReceiveKeyboardEvents(el: HTMLElement) {
+  switch (el.tagName) {
+
+    /* Form elements */
+    case "INPUT":
+    case "SELECT":
+    case "TEXTAREA":
+      return true
+
+    /* Everything else */
+    default:
+      return el.isContentEditable
+  }
+}
+
+/* ------------------------------------------------------------------------- */
+
 /**
  * Watch keyboard
  *
@@ -58,7 +82,7 @@ export function watchKeyboard(): Observable<Key> {
     .pipe(
       filter(ev => !(ev.shiftKey || ev.metaKey || ev.ctrlKey)),
       map(ev => ({
-        type: ev.code,
+        code: ev.code,
         claim() {
           ev.preventDefault()
           ev.stopPropagation()

src/assets/javascripts/observables/header/shadow/index.ts

@@ -25,12 +25,7 @@ import {
   animationFrameScheduler,
   pipe
 } from "rxjs"
-import {
-  distinctUntilKeyChanged,
-  finalize,
-  observeOn,
-  tap
-} from "rxjs/operators"
+import { finalize, observeOn, tap } from "rxjs/operators"
 
 import { resetHeaderShadow, setHeaderShadow } from "actions"
 
@@ -51,7 +46,6 @@ export function paintHeaderShadow(
   el: HTMLElement
 ): MonoTypeOperatorFunction<Main> {
   return pipe(
-    distinctUntilKeyChanged("active"),
 
     /* Defer repaint to next animation frame */
     observeOn(animationFrameScheduler),

src/assets/javascripts/observables/toggle/index.ts

@@ -86,6 +86,8 @@ export function watchToggleMap(
 ): Observable<ToggleMap> {
   toggles$ = document$
     .pipe(
+
+      /* Ignore document switches */
       take(1),
 
       /* Build toggle map */