Files
mkdocs-material/src/assets/javascripts/components/tabs/index.ts

87 lines
2.7 KiB
TypeScript

/*
* Copyright (c) 2016-2019 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, OperatorFunction, pipe } from "rxjs"
import { map, shareReplay } from "rxjs/operators"
import { switchMapIf } from "extensions"
import { Agent, paintHidden } from "utilities"
import { Header, watchHeaderOffsetToTopOf } from "../header"
/* ----------------------------------------------------------------------------
* Types
* ------------------------------------------------------------------------- */
/**
* Tabs
*/
export interface Tabs {
hidden: boolean /* Whether the tabs are hidden */
}
/* ----------------------------------------------------------------------------
* Helper types
* ------------------------------------------------------------------------- */
/**
* Options
*/
interface Options {
header$: Observable<Header> /* Header observable */
}
/* ----------------------------------------------------------------------------
* Functions
* ------------------------------------------------------------------------- */
/**
* Setup tabs from source observable
*
* @param agent - Agent
* @param options - Options
*
* @return Operator function
*/
export function setupTabs(
agent: Agent, { header$ }: Options
): OperatorFunction<HTMLElement, Tabs> {
const { media } = agent
return pipe(
switchMapIf(media.screen$, el => {
/* Watch and paint visibility */
const hidden$ = watchHeaderOffsetToTopOf(el, agent, { header$ })
.pipe(
paintHidden(el, 8)
)
/* Combine into a single hot observable */
return hidden$
.pipe(
map(hidden => ({ hidden }))
)
}),
shareReplay(1)
)
}