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idle.rst

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≡ idle API

idle API

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

.. rst-class:: api-permission-info

Note

The permission idle is required to use messenger.idle.*.

.. rst-class:: api-main-section

Functions

queryState(detectionIntervalInSeconds)

.. api-section-annotation-hack::

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

.. api-header::
   :label: Parameters


   .. api-member::
      :name: ``detectionIntervalInSeconds``
      :type: (integer)

      The system is considered idle if detectionIntervalInSeconds seconds have elapsed since the last user input detected.



.. api-header::
   :label: Return type (`Promise`_)


   .. api-member::
      :type: :ref:`idle.IdleState`


   .. _Promise: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise


.. api-header::
   :label: Required permissions

   - :permission:`idle`

setDetectionInterval(intervalInSeconds)

.. api-section-annotation-hack::

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.

.. api-header::
   :label: Parameters


   .. api-member::
      :name: ``intervalInSeconds``
      :type: (integer)

      Threshold, in seconds, used to determine when the system is in an idle state.



.. api-header::
   :label: Required permissions

   - :permission:`idle`


.. rst-class:: api-main-section

Events

onStateChanged

.. api-section-annotation-hack::

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

.. api-header::
   :label: Parameters for onStateChanged.addListener(listener)


   .. api-member::
      :name: ``listener(newState)``

      A function that will be called when this event occurs.



.. api-header::
   :label: Parameters passed to the listener function


   .. api-member::
      :name: ``newState``
      :type: (:ref:`idle.IdleState`)



.. api-header::
   :label: Required permissions

   - :permission:`idle`


.. rst-class:: api-main-section

Types

IdleState

.. api-section-annotation-hack::


.. api-header::
   :label: `string`


   .. container:: api-member-node

      .. container:: api-member-description-only

         Supported values:

         .. api-member::
            :name: :value:`active`

         .. api-member::
            :name: :value:`idle`