Files
mkdocs-material/src/assets/javascripts/integrations/clipboard/index.ts
2020-09-27 22:50:00 +02:00

95 lines
3.1 KiB
TypeScript

/*
* 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 * as ClipboardJS from "clipboard"
import { NEVER, Observable, Subject } from "rxjs"
import { mapTo, share, tap } from "rxjs/operators"
import { getElements } from "browser"
import { renderClipboardButton } from "templates"
import { translate } from "utilities"
/* ----------------------------------------------------------------------------
* Helper types
* ------------------------------------------------------------------------- */
/**
* Setup options
*/
interface SetupOptions {
document$: Observable<Document> /* Document observable */
dialog$: Subject<string> /* Dialog subject */
}
/* ----------------------------------------------------------------------------
* Functions
* ------------------------------------------------------------------------- */
/**
* Set up clipboard
*
* This function implements the Clipboard.js integration and injects a button
* into all code blocks when the document changes.
*
* @param options - Options
*
* @return Clipboard observable
*/
export function setupClipboard(
{ document$, dialog$ }: SetupOptions
): Observable<ClipboardJS.Event> {
if (!ClipboardJS.isSupported())
return NEVER
/* Inject 'copy-to-clipboard' buttons */
document$.subscribe(() => {
const blocks = getElements("pre > code")
blocks.forEach((block, index) => {
const parent = block.parentElement!
parent.id = `__code_${index}`
parent.insertBefore(
renderClipboardButton(parent.id),
block
)
})
})
/* Initialize clipboard */
const clipboard$ = new Observable<ClipboardJS.Event>(subscriber => {
new ClipboardJS(".md-clipboard").on("success", ev => subscriber.next(ev))
})
.pipe(
share()
)
/* Display notification for clipboard event */
clipboard$
.pipe(
tap(ev => ev.clearSelection()),
mapTo(translate("clipboard.copied"))
)
.subscribe(dialog$)
/* Return clipboard */
return clipboard$
}