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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)
}