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gaia/shared/js/everythingme/device.js

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+'use strict';
+/* global Promise */
+
+(function(eme) {
+
+  const mozSettings = navigator.mozSettings;
+  const mozWifiManager = navigator.mozWifiManager;
+  const mozMobileConnections = navigator.mozMobileConnections;
+
+  const dataConnectionNames = {
+    'hspa+': 'H+',
+    'lte': '4G', 'ehrpd': '4G',
+    'hsdpa': '3G', 'hsupa': '3G', 'hspa': '3G', 'evdo0': '3G', 'evdoa': '3G',
+    'evdob': '3G', '1xrtt': '3G', 'umts': '3G',
+    'edge': '2G', 'is95a': '2G', 'is95b': '2G', 'gprs': '2G'
+  };
+
+  function Device() {
+    // set async. from settings when calling init()
+    this.osVersion = null;
+    this.deviceId = null;
+    this.deviceName = null;
+
+    this.screen = {
+      width: window.screen.width * window.devicePixelRatio,
+      height: window.screen.height * window.devicePixelRatio
+    };
+  }
+
+  Device.prototype = {
+    init: function init(settings) {
+      var deviceId = settings['search.deviceId'];
+
+      if (!deviceId) {
+        deviceId = this.generateDeviceId();
+        mozSettings.createLock().set({
+          'search.deviceId': deviceId
+        });
+      }
+
+      this.deviceId = deviceId;
+      this.deviceName = settings['deviceinfo.product_model'];
+      this.osVersion = settings['deviceinfo.os'];
+
+      // Return a successful promise for back-compat.
+      return Promise.resolve();
+    },
+
+    // see duplicate in homescreen/everything.me.js
+    generateDeviceId: function generateDeviceId() {
+      var url = window.URL.createObjectURL(new Blob());
+      var id = url.replace('blob:', '');
+
+      window.URL.revokeObjectURL(url);
+
+      return 'fxos-' + id;
+    },
+
+    get language() {
+      return navigator.language;
+    },
+
+    get timezone() {
+      return (new Date().getTimezoneOffset() / -60).toString();
+    },
+
+    // mobile connection
+    get connection() {
+      if (!this._connection) {
+        this._connection = mozMobileConnections &&
+            mozMobileConnections.length && mozMobileConnections[0];
+      }
+      return this._connection;
+    },
+
+    // voice network
+    get voiceNet() {
+      return (this.connection && this.connection.voice) ?
+              this.connection.voice.network : null;
+    },
+
+    // data connection type
+    get dataConnectionType() {
+      if (mozWifiManager && mozWifiManager.enabled) {
+        return 'wifi';
+      }
+
+      if (this.connection && this.connection.data) {
+        var type = this.connection.data.type;
+        return dataConnectionNames[type] || type;
+      }
+
+      return null;
+    },
+
+    get carrier() {
+      return this.voiceNet ?
+        (this.voiceNet.shortName || this.voiceNet.longName) : null;
+    },
+
+    get mcc() {
+      return this.voiceNet ? this.voiceNet.mcc : null;
+    },
+
+    get mnc() {
+      return this.voiceNet ? this.voiceNet.mnc : null;
+    }
+  };
+
+  eme.device = new Device();
+
+})(window.eme);