41 lines
919 B
TypeScript
41 lines
919 B
TypeScript
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// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type { PowerSaveBlocker } from 'electron';
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import * as log from '../ts/logging/log';
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export class PreventDisplaySleepService {
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private blockerId: undefined | number;
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constructor(private powerSaveBlocker: PowerSaveBlocker) {}
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setEnabled(isEnabled: boolean): void {
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log.info(
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`Prevent display sleep service: ${
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isEnabled ? 'preventing' : 'allowing'
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} display sleep`
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);
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if (isEnabled) {
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this.enable();
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} else {
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this.disable();
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}
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}
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private enable(): void {
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if (this.blockerId !== undefined) {
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return;
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}
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this.blockerId = this.powerSaveBlocker.start('prevent-display-sleep');
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}
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private disable(): void {
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if (this.blockerId === undefined) {
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return;
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}
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this.powerSaveBlocker.stop(this.blockerId);
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delete this.blockerId;
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}
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}
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