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gaia/apps/system/js/internet_sharing.js

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+'use strict';
+/* global ModalDialog */
+/* global Service */
+
+(function(exports) {
+
+  // Local reference to mozSettings
+  var settings;
+
+  /**
+   * Internet Sharing module responsible for checking the availability of
+   * internet sharing based on the status of airplane mode.
+   * @requires ModalDialog
+   * @class InternetSharing
+   */
+  function InternetSharing() {}
+
+  InternetSharing.prototype = {
+    /**
+     * Called whenever there is a setting change in wifi tethering.
+     * Validates that we can turn internet sharing on, and saves state to
+     * @memberof InternetSharing.prototype
+     */
+    internetSharingSettingsChangeHanlder: function(evt) {
+      if (Service.query('AirplaneMode.isActive') && true === evt.settingValue) {
+        var title = 'apmActivated';
+        var buttonText = 'ok';
+        var message ='noHotspotWhenAPMisOnWifiHotspot';
+
+        ModalDialog.alert(title, message, { title: buttonText });
+        settings.createLock().set({
+          'tethering.wifi.enabled': false
+        });
+      }
+    },
+
+    /**
+     * Starts the InternetSharing class.
+     * @memberof InternetSharing.prototype
+     */
+    start: function() {
+      settings = window.navigator.mozSettings;
+      // listen changes after value is restored.
+      settings.addObserver('tethering.wifi.enabled',
+        this.internetSharingSettingsChangeHanlder.bind(this));
+    }
+  };
+
+  exports.InternetSharing = InternetSharing;
+
+}(window));