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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 { EMPTY, Observable, noop, of } from "rxjs" | |
| import { | |
| concatMap, | |
| map, | |
| skip, | |
| switchMap, | |
| withLatestFrom | |
| } from "rxjs/operators" | |
| import { | |
| createElement, | |
| getElements, | |
| replaceElement | |
| } from "browser" | |
| import { useComponent } from "components" | |
| /* ---------------------------------------------------------------------------- | |
| * Helper types | |
| * ------------------------------------------------------------------------- */ | |
| /** | |
| * Patch options | |
| */ | |
| interface PatchOptions { | |
| document$: Observable<Document> /* Document observable */ | |
| } | |
| /* ---------------------------------------------------------------------------- | |
| * Functions | |
| * ------------------------------------------------------------------------- */ | |
| /** | |
| * Patch all `script` elements | |
| * | |
| * This function must be run after a document switch, which means the first | |
| * emission must be ignored. | |
| * | |
| * @param options - Options | |
| */ | |
| export function patchScripts( | |
| { document$ }: PatchOptions | |
| ): void { | |
| const els$ = document$ | |
| .pipe( | |
| skip(1), | |
| withLatestFrom(useComponent("container")), | |
| map(([, el]) => getElements<HTMLScriptElement>("script", el)) | |
| ) | |
| /* Evaluate all scripts via replacement in order */ | |
| els$ | |
| .pipe( | |
| switchMap(els => of(...els)), | |
| concatMap(el => { | |
| const script = createElement("script") | |
| if (el.src) { | |
| script.src = el.src | |
| replaceElement(el, script) | |
| /* Complete when script is loaded */ | |
| return new Observable(observer => { | |
| script.onload = () => observer.complete() | |
| }) | |
| /* Complete immediately */ | |
| } else { | |
| script.textContent = el.textContent! | |
| replaceElement(el, script) | |
| return EMPTY | |
| } | |
| }) | |
| ) | |
| .subscribe(noop) | |
| } |