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| /* | |
| * 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 { Observable, fromEvent, merge } from "rxjs" | |
| import { | |
| filter, | |
| map, | |
| switchMapTo, | |
| tap | |
| } from "rxjs/operators" | |
| import { | |
| getElement, | |
| getElements, | |
| watchMedia | |
| } from "browser" | |
| /* ---------------------------------------------------------------------------- | |
| * Helper types | |
| * ------------------------------------------------------------------------- */ | |
| /** | |
| * Patch options | |
| */ | |
| interface PatchOptions { | |
| document$: Observable<Document> /* Document observable */ | |
| hash$: Observable<string> /* Location hash observable */ | |
| } | |
| /* ---------------------------------------------------------------------------- | |
| * Functions | |
| * ------------------------------------------------------------------------- */ | |
| /** | |
| * Patch all `details` elements | |
| * | |
| * This function will ensure that all `details` tags are opened prior to | |
| * printing, so the whole content of the page is included, and on anchor jumps. | |
| * | |
| * @param options - Options | |
| */ | |
| export function patchDetails( | |
| { document$, hash$ }: PatchOptions | |
| ): void { | |
| const els$ = document$ | |
| .pipe( | |
| map(() => getElements<HTMLDetailsElement>("details")) | |
| ) | |
| /* Open all details before printing */ | |
| merge( | |
| watchMedia("print").pipe(filter(Boolean)), /* Webkit */ | |
| fromEvent(window, "beforeprint") /* IE, FF */ | |
| ) | |
| .pipe( | |
| switchMapTo(els$) | |
| ) | |
| .subscribe(els => { | |
| for (const el of els) | |
| el.setAttribute("open", "") | |
| }) | |
| /* Open parent details and fix anchor jump */ | |
| hash$ | |
| .pipe( | |
| map(id => getElement(`[id="${id}"]`)!), | |
| filter(el => typeof el !== "undefined"), | |
| tap(el => { | |
| const details = el.closest("details") | |
| if (details && !details.open) | |
| details.setAttribute("open", "") | |
| }) | |
| ) | |
| .subscribe(el => el.scrollIntoView()) | |
| } |