Files
mkdocs-material/src/assets/javascripts/components/source/_/index.ts
2021-11-28 14:54:14 +01:00

128 lines
3.6 KiB
TypeScript

/*
* Copyright (c) 2016-2021 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,
Subject,
catchError,
defer,
filter,
finalize,
map,
of,
shareReplay,
tap
} from "rxjs"
import { getElement } from "~/browser"
import { renderSourceFacts } from "~/templates"
import { Component } from "../../_"
import {
SourceFacts,
fetchSourceFacts
} from "../facts"
/* ----------------------------------------------------------------------------
* Types
* ------------------------------------------------------------------------- */
/**
* Repository information
*/
export interface Source {
facts: SourceFacts /* Repository facts */
}
/* ----------------------------------------------------------------------------
* Data
* ------------------------------------------------------------------------- */
/**
* Repository information observable
*/
let fetch$: Observable<Source>
/* ----------------------------------------------------------------------------
* Functions
* ------------------------------------------------------------------------- */
/**
* Watch repository information
*
* This function tries to read the repository facts from session storage, and
* if unsuccessful, fetches them from the underlying provider.
*
* @param el - Repository information element
*
* @returns Repository information observable
*/
export function watchSource(
el: HTMLAnchorElement
): Observable<Source> {
return fetch$ ||= defer(() => {
const cached = __md_get<SourceFacts>("__source", sessionStorage)
if (cached)
return of(cached)
else
return fetchSourceFacts(el.href)
.pipe(
tap(facts => __md_set("__source", facts, sessionStorage))
)
})
.pipe(
catchError(() => EMPTY),
filter(facts => Object.keys(facts).length > 0),
map(facts => ({ facts })),
shareReplay(1)
)
}
/**
* Mount repository information
*
* @param el - Repository information element
*
* @returns Repository information component observable
*/
export function mountSource(
el: HTMLAnchorElement
): Observable<Component<Source>> {
const inner = getElement(":scope > :last-child", el)
return defer(() => {
const push$ = new Subject<Source>()
push$.subscribe(({ facts }) => {
inner.appendChild(renderSourceFacts(facts))
inner.setAttribute("data-md-state", "done")
})
/* Create and return component */
return watchSource(el)
.pipe(
tap(state => push$.next(state)),
finalize(() => push$.complete()),
map(state => ({ ref: el, ...state }))
)
})
}