idle.onStateChanged

Fired when the system changes to an active, idle or locked state. The event fires with "locked" if the screen is locked or the screensaver activates, "idle" if the system is unlocked and the user has not generated any input for a specified number of seconds, and "active" when the user generates input on an idle system.

Syntax

chrome.idle.onStateChanged.addListener(function(
  newState // IdleState
) {...})
chrome.idle.onStateChanged.removeListener(listener)
chrome.idle.onStateChanged.hasListener(listener)

This API is also available as browser.idle.onStateChanged.*.

Events have three functions:

addListener(callback)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The listener argument is the listener to remove.
hasListener(listener)
Check whether listener is registered for this event. Returns true if it is listening, false otherwise.

addListener syntax

Parameters

callback

Function that will be called when this event occurs. The function will be passed the following arguments:

newState
idle.IdleState. The new idle state.

Browser compatibility

Chrome Edge Firefox Firefox for Android Opera
Basic support Yes No No No 33

Examples

Acknowledgements

This API is based on Chromium's chrome.idle API. This documentation is derived from idle.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

Document Tags and Contributors

 Contributors to this page: Makyen, wbamberg
 Last updated by: Makyen,