mirror of
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71 lines
2.2 KiB
TypeScript
71 lines
2.2 KiB
TypeScript
/*
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* Copyright (c) 2016-2025 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 {
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Observable,
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defer,
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finalize,
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fromEvent,
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map,
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merge,
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switchMap,
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take,
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throwError
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} from "rxjs"
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import { h } from "~/utilities"
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/* ----------------------------------------------------------------------------
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* Functions
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* ------------------------------------------------------------------------- */
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/**
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* Create and load a `script` element
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*
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* This function returns an observable that will emit when the script was
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* successfully loaded, or throw an error if it wasn't.
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*
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* @param src - Script URL
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*
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* @returns Script observable
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*/
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export function watchScript(src: string): Observable<void> {
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const script = h("script", { src })
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return defer(() => {
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document.head.appendChild(script)
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return merge(
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fromEvent(script, "load"),
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fromEvent(script, "error")
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.pipe(
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switchMap(() => (
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throwError(() => new ReferenceError(`Invalid script: ${src}`))
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))
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)
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)
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.pipe(
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map(() => undefined),
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finalize(() => document.head.removeChild(script)),
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take(1)
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)
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})
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}
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