mirror of
https://github.com/squidfunk/mkdocs-material.git
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108 lines
3.1 KiB
TypeScript
108 lines
3.1 KiB
TypeScript
/*
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* Copyright (c) 2016-2019 Martin Donath <martin.donath@squidfunk.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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import { Observable, fromEvent } from "rxjs"
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import { ajax } from "rxjs/ajax"
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import {
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distinctUntilChanged,
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map,
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mapTo,
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pluck,
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shareReplay,
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skip,
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startWith,
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switchMap
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} from "rxjs/operators"
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/* ----------------------------------------------------------------------------
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* Function types
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* ------------------------------------------------------------------------- */
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/**
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* Switch options
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*/
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interface SwitchOptions {
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location$: Observable<string> /* Location observable */
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}
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/* ----------------------------------------------------------------------------
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* Data
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* ------------------------------------------------------------------------- */
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/**
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* Observable for document load events
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*/
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const load$ = fromEvent(document, "DOMContentLoaded")
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/* ----------------------------------------------------------------------------
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* Functions
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* ------------------------------------------------------------------------- */
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/**
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* Watch document
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*
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* @return Document observable
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*/
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export function watchDocument(): Observable<Document> {
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return load$
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.pipe(
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mapTo(document),
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shareReplay(1)
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)
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}
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/**
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* Watch document switch
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*
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* This function returns an observables that fetches a document if the provided
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* location observable emits a new value (i.e. URL). If the emitted URL points
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* to the same page, the request is effectively ignored (e.g. when only the
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* fragment identifier changes)
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*
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* @param options - Options
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*
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* @return Document switch observable
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*/
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export function watchDocumentSwitch(
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{ location$ }: SwitchOptions
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): Observable<Document> {
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return location$
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.pipe(
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startWith(location.href),
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map(url => url.replace(/#[^#]+$/, "")),
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distinctUntilChanged(),
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skip(1),
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/* Fetch document */
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switchMap(url => ajax({
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url,
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responseType: "document",
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withCredentials: true
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})
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.pipe<Document>(
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pluck("response")
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)
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),
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shareReplay(1)
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)
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}
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