mirror of
https://github.com/squidfunk/mkdocs-material.git
synced 2026-07-30 01:32:39 -04:00
100 lines
3.2 KiB
TypeScript
100 lines
3.2 KiB
TypeScript
/*
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* Copyright (c) 2016-2021 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 { NEVER, Observable, Subject, fromEvent, merge } from "rxjs"
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import { finalize, map, mapTo, tap } from "rxjs/operators"
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import { getElementOrThrow, getElements } from "~/browser"
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import { Component } from "../../_"
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/* ----------------------------------------------------------------------------
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* Types
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* ------------------------------------------------------------------------- */
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/**
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* Content tabs
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*/
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export interface ContentTabs {
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active: HTMLLabelElement /* Active tab label */
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}
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/* ----------------------------------------------------------------------------
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* Functions
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* ------------------------------------------------------------------------- */
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/**
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* Watch content tabs
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*
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* @param el - Content tabs element
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*
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* @returns Content tabs observable
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*/
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export function watchContentTabs(
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el: HTMLElement
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): Observable<ContentTabs> {
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if (!el.classList.contains("tabbed-alternate"))
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return NEVER
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else
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return merge(...getElements(":scope > input", el)
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.map(input => fromEvent(input, "change").pipe(mapTo(input.id)))
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)
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.pipe(
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map(id => ({
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active: getElementOrThrow<HTMLLabelElement>(`label[for=${id}]`)
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}))
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)
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}
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/**
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* Mount content tabs
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*
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* @param el - Content tabs element
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*
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* @returns Content tabs component observable
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*/
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export function mountContentTabs(
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el: HTMLElement
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): Observable<Component<ContentTabs>> {
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const internal$ = new Subject<ContentTabs>()
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internal$.subscribe(({ active }) => {
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// TODO: Hack, scrollIntoView is too buggy
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const container = active.parentElement!
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if (
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active.offsetLeft + active.offsetWidth > container.scrollLeft + container.offsetWidth ||
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active.offsetLeft < container.scrollLeft
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)
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container.scrollTo({
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behavior: "smooth",
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left: active.offsetLeft
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})
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})
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/* Create and return component */
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return watchContentTabs(el)
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.pipe(
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tap(state => internal$.next(state)),
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finalize(() => internal$.complete()),
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map(state => ({ ref: el, ...state }))
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)
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}
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