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chrome.idle | API | Chrome for Developers

chrome.idle

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Description

Use the chrome.idle API to detect when the machine's idle state changes.

Permissions

idle

You must declare the "idle" permission in your extension's manifest to use the idle API. For example:

{
  "name": "My extension",
  ...
  "permissions": [
    "idle"
  ],
  ...
}
Types Methods

getAutoLockDelay()

chrome.idle.getAutoLockDelay(): Promise<number>

Gets the time, in seconds, it takes until the screen is locked automatically while idle. Returns a zero duration if the screen is never locked automatically. Currently supported on Chrome OS only.

queryState()

chrome.idle.queryState(
  detectionIntervalInSeconds: number,
)
: Promise<IdleState>

Returns "locked" if the system is locked, "idle" if the user has not generated any input for a specified number of seconds, or "active" otherwise.

Parameters

setDetectionInterval()

chrome.idle.setDetectionInterval(
  intervalInSeconds: number,
)
: void

Sets the interval, in seconds, used to determine when the system is in an idle state for onStateChanged events. The default interval is 60 seconds.

Parameters Events

onStateChanged

chrome.idle.onStateChanged.addListener(
  callback: function,
)

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.

Parameters

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-08-11 UTC.

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