progressAccessibilitySignalScheduler.ts

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

import { RunOnceScheduler } from '../../../base/common/async.js';
import { Disposable, IDisposable } from '../../../base/common/lifecycle.js';
import { AccessibilitySignal, IAccessibilitySignalService } from './accessibilitySignalService.js';

const PROGRESS_SIGNAL_LOOP_DELAY = 5000;

/**
 * Schedules a signal to play while progress is happening.
 */
export class AccessibilityProgressSignalScheduler extends Disposable {
	private _scheduler: RunOnceScheduler;
	private _signalLoop: IDisposable | undefined;
	constructor(msDelayTime: number, msLoopTime: number | undefined, @IAccessibilitySignalService private readonly _accessibilitySignalService: IAccessibilitySignalService) {
		super();
		this._scheduler = this._register(new RunOnceScheduler(() => {
			this._signalLoop = this._accessibilitySignalService.playSignalLoop(AccessibilitySignal.progress, msLoopTime ?? PROGRESS_SIGNAL_LOOP_DELAY);
		}, msDelayTime));
		this._scheduler.schedule();
	}
	override dispose(): void {
		super.dispose();
		this._signalLoop?.dispose();
		this._scheduler.dispose();
	}
}