Permalink
Cannot retrieve contributors at this time
| /* | |
| * Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com> | |
| * | |
| * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| * of this software and associated documentation files (the "Software"), to | |
| * deal in the Software without restriction, including without limitation the | |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or | |
| * sell copies of the Software, and to permit persons to whom the Software is | |
| * furnished to do so, subject to the following conditions: | |
| * | |
| * The above copyright notice and this permission notice shall be included in | |
| * all copies or substantial portions of the Software. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE | |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
| * IN THE SOFTWARE. | |
| */ | |
| import * as ClipboardJS from "clipboard" | |
| import { NEVER, Observable, Subject } from "rxjs" | |
| import { mapTo, share, tap } from "rxjs/operators" | |
| import { getElements } from "browser" | |
| import { renderClipboardButton } from "templates" | |
| import { translate } from "utilities" | |
| /* ---------------------------------------------------------------------------- | |
| * Helper types | |
| * ------------------------------------------------------------------------- */ | |
| /** | |
| * Setup options | |
| */ | |
| interface SetupOptions { | |
| document$: Observable<Document> /* Document observable */ | |
| dialog$: Subject<string> /* Dialog subject */ | |
| } | |
| /* ---------------------------------------------------------------------------- | |
| * Functions | |
| * ------------------------------------------------------------------------- */ | |
| /** | |
| * Set up clipboard | |
| * | |
| * This function implements the Clipboard.js integration and injects a button | |
| * into all code blocks when the document changes. | |
| * | |
| * @param options - Options | |
| * | |
| * @return Clipboard observable | |
| */ | |
| export function setupClipboard( | |
| { document$, dialog$ }: SetupOptions | |
| ): Observable<ClipboardJS.Event> { | |
| if (!ClipboardJS.isSupported()) | |
| return NEVER | |
| /* Inject 'copy-to-clipboard' buttons */ | |
| document$.subscribe(() => { | |
| const blocks = getElements("pre > code") | |
| blocks.forEach((block, index) => { | |
| const parent = block.parentElement! | |
| parent.id = `__code_${index}` | |
| parent.insertBefore( | |
| renderClipboardButton(parent.id), | |
| block | |
| ) | |
| }) | |
| }) | |
| /* Initialize clipboard */ | |
| const clipboard$ = new Observable<ClipboardJS.Event>(subscriber => { | |
| new ClipboardJS(".md-clipboard").on("success", ev => subscriber.next(ev)) | |
| }) | |
| .pipe( | |
| share() | |
| ) | |
| /* Display notification for clipboard event */ | |
| clipboard$ | |
| .pipe( | |
| tap(ev => ev.clearSelection()), | |
| mapTo(translate("clipboard.copied")) | |
| ) | |
| .subscribe(dialog$) | |
| /* Return clipboard */ | |
| return clipboard$ | |
| } |