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/*
* Copyright (c) 2016-2023 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,
map,
mergeMap,
switchMap,
takeWhile,
tap,
withLatestFrom
} from "rxjs"
import { getElements } from "~/browser"
/* ----------------------------------------------------------------------------
* Helper types
* ------------------------------------------------------------------------- */
/**
* Patch options
*/
interface PatchOptions {
document$: Observable<Document> /* Document observable */
tablet$: Observable<boolean> /* Media tablet observable */
}
/* ----------------------------------------------------------------------------
* Functions
* ------------------------------------------------------------------------- */
/**
* Patch indeterminate checkboxes
*
* This function replaces the indeterminate "pseudo state" with the actual
* indeterminate state, which is used to keep navigation always expanded.
*
* @param options - Options
*/
export function patchIndeterminate(
{ document$, tablet$ }: PatchOptions
): void {
document$
.pipe(
switchMap(() => getElements<HTMLInputElement>(
".md-toggle--indeterminate"
)),
tap(el => {
el.indeterminate = true
el.checked = false
}),
mergeMap(el => fromEvent(el, "change")
.pipe(
takeWhile(() => el.classList.contains("md-toggle--indeterminate")),
map(() => el)
)
),
withLatestFrom(tablet$)
)
.subscribe(([el, tablet]) => {
el.classList.remove("md-toggle--indeterminate")
if (tablet)
el.checked = false
})
}
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