idle.queryState() 编辑

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.

This is an asynchronous function that returns a Promise.

Syntax

var querying = browser.idle.queryState(
  detectionIntervalInSeconds // integer
)

Parameters

detectionIntervalInSeconds

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

Return value

A Promise that will be fulfilled with an idle.IdleState string, indicating the current state.

Browser compatibility

BCD tables only load in the browser

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.

Examples

In this simple snippet, we call queryState() and then check if the returned newState is idle or active, logging a message as appropriate. Because we have specified  a detectionIntervalInSeconds of 15, an idle state will only be reported if there has been no user activity for at least 15 seconds

function onGot(newState) {
  if (newState === 'idle') {
    console.log('Please come back — we miss you!');
  } else if (newState === 'active') {
    console.log('Glad to still have you with us!');
  }
}

var querying = browser.idle.queryState(15);
querying.then(onGot);

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.

// Copyright 2015 The Chromium Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//    * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//    * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//    * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.