extjs/packages/legacy/modern/src/device/Compass.js

   1 /**
   2  * Provides access to the native Compass API when running on a device. There are three implementations of this API:
   3  *
   4  * - [PhoneGap](http://docs.phonegap.com/en/2.6.0/cordova_compass_compass.md.html#Compass)
   5  *
   6  * This class will automatically select the correct implementation depending on the device your application is running on.
   7  *
   8  * ## Examples
   9  *
  10  * Getting the current location:
  11  *
  12  *     Ext.device.Compass.getCurrentHeading({
  13  *         success: function(heading) {
  14  *                      alert('Heading: ' + heading.magneticHeading);
  15  *          },
  16  *         failure: function() {
  17  *             console.log('something went wrong!');
  18  *         }
  19  *     });
  20  *
  21  * Watching the current compass:
  22  *
  23  *     Ext.device.Compass.watchHeading({
  24  *         frequency: 500, // Update every 1/2 second
  25  *         callback: function(heading) {
  26  *                      console.log('Heading: ' + heading.magneticHeading);
  27  *          },
  28  *         failure: function() {
  29  *             console.log('something went wrong!');
  30  *         }
  31  *     });
  32  *
  33  * @mixins Ext.device.compass.Abstract
  34  */
  35 Ext.define('Ext.device.Compass', {
  36     singleton: true,
  37
  38     requires: [
  39         'Ext.device.compass.Cordova',
  40         'Ext.device.compass.Simulator'
  41     ],
  42
  43     constructor: function() {
  44         var browserEnv = Ext.browser.is;
  45         if (browserEnv.WebView && browserEnv.Cordova) {
  46             return Ext.create('Ext.device.compass.Cordova');
  47         }
  48
  49         return Ext.create('Ext.device.compass.Simulator');
  50     }
  51 });