electron/docs/api/power-save-blocker.md

power-save-blocker

The power-save-blocker module is used to block the system from entering low-power(sleep) mode.

An example is:

var powerSaveBlocker = require('power-save-blocker');

powerSaveBlocker.start(powerSaveBlocker.PREVENT_DISPLAY_SLEEP);
console.log(powerSaveBlocker.IsStarted());

powerSaveBlocker.start(type)

• type - Power save blocker type
  • powerSaveBlocker.PREVENT_APP_SUSPENSION - Prevent the application from being suspended. On some platforms, apps may be suspended when they are not visible to the user. This type of block requests that the app continue to run in that case,and on all platforms prevents the system from sleeping. Example use cases: downloading a file, playing audio.
  • powerSaveBlocker.PREVENT_DISPLAY_SLEEP - Prevent the display from going to sleep. This also has the side effect of preventing the system from sleeping, but does not necessarily prevent the app from being suspended on some platforms if the user hides it. Example use case: playing video.

Starts the power save blocker preventing the system entering lower-power mode.

powerSaveBlocker.isStarted()

Returns whether the powerSaveBlocker starts.

powerSaveBlocker.stop()

Stops blocking the system from entering low-power mode.