Electron powerSaveBlocker module

powerSaveBlocker is used to prevent the application from entering sleep mode, so this allows the application to keep the system and screen working.

For example:

const powerSaveBlocker = require('electron').powerSaveBlocker;

var id = powerSaveBlocker.start('prevent-display-sleep');
console.log(powerSaveBlocker.isStarted(id));

powerSaveBlocker.stop(id);

Method

powerSaveBlocker has the following approach:

powerSaveBlocker.start(type)

• type String - Force save blocking type.
  • prevent-app-suspension - prevents apps from hanging. K eep the system active but allow the screen not to light up. Use case: Download a file or play audio.
  • prevent-display-sleep - prevents the app from going into hibernation. K eep the system and screen active and the screen is always on. Use case: Play audio.

Start blocking the system from going into sleep mode. Returns an integer that identifies the blocker that remains active.

Note: prevent-display-sleep a higher prevent-app-suspension . O nly the highest priority takes effect. In other words, prevent-display-sleep is always prevent-app-suspension .

For example, the A request calls prevent-app-suspension and the B request prevent-display-sleep . prevent-display-sleep will work until B stops calling. After that, prevent-app-suspension only worked.

powerSaveBlocker.stop(id)

• id Integer - Keep active blocker id powerSaveBlocker.start

Let the specified blocker stop active.

powerSaveBlocker.isStarted(id)

• id Integer - Keep active blocker id powerSaveBlocker.start

Return to boolean, whether the powerSaveBlocker been started.