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
listenerargument is the listener to remove. hasListener(listener)- Check whether
listeneris registered for this event. Returnstrueif it is listening,falseotherwise.
addListener syntax
Parameters
callback-
Function that will be called when this event occurs. The function will be passed the following arguments:
newStateidle.IdleState. The new idle state.
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Chrome | Edge | Firefox | Firefox for Android | Opera | |
|---|---|---|---|---|---|
| Basic support | Yes | No | No | No | 33 |
Examples
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.
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