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gaia/apps/settings/js/panels/hotspot/hotspot_settings.js

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+/**
+ * Hotspot Settings:
+ *   - Update Hotspot Settings
+ * @module HotspotSettings
+ */
+define(function(require) {
+  'use strict';
+
+  var SettingsListener = require('shared/settings_listener');
+  var SettingsCache = require('modules/settings_cache');
+  var Module = require('modules/base/module');
+  var Observable = require('modules/mvvm/observable');
+
+  /**
+   * @requires module:modules/mvvm/observable
+   * @requires module:modules/settings_cache
+   * @returns {HotspotSettings}
+   */
+  var HotspotSettings = Module.create(function HotspotSettings() {
+    this.super(Observable).call(this);
+    this._init();
+  }).extend(Observable);
+
+  /**
+   * Hotspot SSID setting key
+   *
+   * @access public
+   * @memberOf HotspotSettings
+   * @type {String}
+   */
+  Object.defineProperty(HotspotSettings.prototype, 'tetheringSSIDKey', {
+    get: function() {
+      return 'tethering.wifi.ssid';
+    }
+  });
+
+  /**
+   * Hotspot security type setting key
+   *
+   * @access public
+   * @memberOf HotspotSettings
+   * @type {String}
+   */
+  Object.defineProperty(HotspotSettings.prototype, 'tetheringSecurityKey', {
+    get: function() {
+      return 'tethering.wifi.security.type';
+    }
+  });
+
+  /**
+   * Hotspot password setting key
+   *
+   * @access public
+   * @memberOf HotspotSettings
+   * @type {String}
+   */
+  Object.defineProperty(HotspotSettings.prototype, 'tetheringPasswordKey', {
+    get: function() {
+      return 'tethering.wifi.security.password';
+    }
+  });
+
+  /**
+   * Hotspot SSID.
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   * @type {String}
+   */
+  Observable.defineObservableProperty(HotspotSettings.prototype,
+    'hotspotSSID', {
+      readonly: true,
+      value: ''
+  });
+
+  /**
+   * Hotspot security type
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   * @type {String}
+   */
+  Observable.defineObservableProperty(HotspotSettings.prototype,
+    'hotspotSecurity', {
+      readonly: true,
+      value: ''
+  });
+
+  /**
+   * Hotspot Password
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   * @type {String}
+   */
+  Observable.defineObservableProperty(HotspotSettings.prototype,
+    'hotspotPassword', {
+      readonly: true,
+      value: ''
+  });
+
+  /**
+   * Init module.
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   */
+  HotspotSettings.prototype._init = function() {
+    this._settings = navigator.mozSettings;
+    this._bindEvents();
+    this._updatePasswordIfNeeded();
+  };
+
+  /**
+   * We will generate a random password for the hotspot
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   */
+  HotspotSettings.prototype._generateHotspotPassword = function() {
+    var words = ['amsterdam', 'ankara', 'auckland',
+               'belfast', 'berlin', 'boston',
+               'calgary', 'caracas', 'chicago',
+               'dakar', 'delhi', 'dubai',
+               'dublin', 'houston', 'jakarta',
+               'lagos', 'lima', 'madrid',
+               'newyork', 'osaka', 'oslo',
+               'porto', 'santiago', 'saopaulo',
+               'seattle', 'stockholm', 'sydney',
+               'taipei', 'tokyo', 'toronto'];
+    var password = words[Math.floor(Math.random() * words.length)];
+    for (var i = 0; i < 4; i++) {
+      password += Math.floor(Math.random() * 10);
+    }
+    return password;
+  };
+
+  /**
+   * We will update hotspot password if needed
+   *
+   * @access private
+   * @memberOf HotspotSettings
+  */
+  HotspotSettings.prototype._updatePasswordIfNeeded = function() {
+    var self = this;
+    SettingsCache.getSettings(function(results) {
+      if (!results[self.tetheringPasswordKey]) {
+        var pwd = self._generateHotspotPassword();
+        self.setHotspotPassword(pwd);
+      }
+    });
+  };
+
+  /**
+   * Sets the value to the tethering SSID setting
+   *
+   * @access public
+   * @memberOf HotspotSettings
+   * @param {String} value
+   */
+  HotspotSettings.prototype.setHotspotSSID = function(value) {
+    var cset = {};
+    cset[this.tetheringSSIDKey] = value;
+    this._settings.createLock().set(cset);
+  };
+
+  /**
+   * Sets the value to the tethering security type setting
+   *
+   * @access public
+   * @memberOf HotspotSettings
+   * @param {String} value
+   */
+  HotspotSettings.prototype.setHotspotSecurity = function(value) {
+    var cset = {};
+    cset[this.tetheringSecurityKey] = value;
+    this._settings.createLock().set(cset);
+  };
+
+  /**
+   * Sets the value to the tethering password setting
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   * @param {String} value
+   */
+  HotspotSettings.prototype.setHotspotPassword = function(value) {
+    var cset = {};
+    cset[this.tetheringPasswordKey] = value;
+    this._settings.createLock().set(cset);
+  };
+
+  /**
+   * Updates the current value of hotspot SSID
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   * @param {String} value
+   */
+  HotspotSettings.prototype._onSSIDChange = function(value) {
+    this._hotspotSSID = value;
+  };
+
+  /**
+   * Updates the current value of hotspot security type
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   * @param {String} value
+   */
+  HotspotSettings.prototype._onSecurityChange = function(value) {
+    this._hotspotSecurity = value;
+  };
+
+  /**
+   * Updates the current value of hotspot password
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   * @param {String} value
+   */
+  HotspotSettings.prototype._onPasswordChange = function(value) {
+    this._hotspotPassword = value;
+  };
+
+  /**
+   * Listen to hotspot settings changes
+   *
+   * @access private
+   * @memberOf HotspotSettings
+   */
+  HotspotSettings.prototype._bindEvents = function() {
+    SettingsListener.observe(this.tetheringSSIDKey,
+      '', this._onSSIDChange.bind(this));
+
+    SettingsListener.observe(this.tetheringSecurityKey,
+      'wpa-psk', this._onSecurityChange.bind(this));
+
+    SettingsListener.observe(this.tetheringPasswordKey,
+      '', this._onPasswordChange.bind(this));
+  };
+
+  return HotspotSettings;
+});