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npm install hypnos
bower install hypnos
Live demo - should be checked on mobile.
Hypnos is a module for determination if device is sleeping. This may be used for cases when you need to know for sure, that device on which code is executing is currently working (most probably these are the cases with repetitive actions taking place or some time-driven queue).
Ergo, callback will not be executed until browser takes control of the device.
The main targets of module were mobile devices but with careful tuning it may also work for desktop as well.
Note: There is also a possibility of performing similar action with help of Page Visibility API but it lacks support in most mobile browsers.
Hypnos may be used without any modular system:
With help of browserify:
var Hypnos = ;var hypnos = ;
Or AMD style (RequireJS):
The actual usage:
constructor (Object options) - creates a Hypnos instance. May be called with one optional parameters - options object.
options (Object options) - gets or sets options object. If options object is provided, sets it, otherwise - returns the current options object.
isSleeping (Function callback) - checks whether device is sleeping. Accepts callback which will be executed when device is awake. Callback accepts one parameter isSleeping Boolean which shows if device was sleeping.
Feel free to open issues and send PRs, though make sure that you create tests for new functionality and amend ones for fixes and changes.
Tests are not covering the actual functionality due to complexity of their
implementation but at least they cover passing parameters, options generation etc.
npm test in order to see test results.
The MIT License (MIT)
Copyright (c) 2014 Semenistyi Mykyta firstname.lastname@example.org
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.