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gaia/tv_apps/notification-receiver/js/receiver.js

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+/* global Notification */
+/* jshint nonew: false */
+'use strict';
+
+(function(exports) {
+
+  const DEFAULT_ICON_URL = 'style/icons/ic_default-notification.png';
+  const DEBUG = 0;
+
+  var Receiver = function Receiver() {};
+
+  Receiver.prototype = {
+
+    _onMessage: undefined,
+    _onStateChange: undefined,
+    _connection: undefined,
+    _sequence: undefined,
+
+    init: function r_init() {
+      this._onMessage = this._handleMessage.bind(this);
+      this._onStateChange = this._handleStateChange.bind(this);
+
+      navigator.presentation &&
+                          navigator.presentation.receiver.getConnection().then(
+      function addConnection(connection) {
+        this._connection = connection;
+        this._connection.addEventListener('message', this._onMessage);
+        this._connection.addEventListener('statechange', this._onStateChange);
+        this._sequence = 0;
+      }.bind(this),
+      function connectionError() {
+        console.warn('Getting connection failed.');
+      });
+    },
+
+    uninit: function r_uninit() {
+      if (this._connection) {
+        this._connection.removeEventListener('message', this._onMessage);
+        this._connection.removeEventListener(
+                                            'statechange', this._onStateChange);
+        this._connection = null;
+        this._sequence = 0;
+      }
+    },
+
+    _sendMessage: function r_sendMessage(type, data) {
+      if (!this._connection) {
+        return;
+      }
+
+      var msg = {
+        'type': type,
+        'seq': ++this._sequence
+      };
+
+      for (var i in data) {
+        msg[i] = data [i];
+      }
+
+      this._connection.send(JSON.stringify(msg));
+    },
+
+    _renderMessage: function r_renderMessage(message) {
+      var result;
+      switch(message.type) {
+        case 'view':
+          this.sendViewUrl(message.url);
+          break;
+        case 'Message':
+        case 'Laundry':
+        case 'Home':
+        case 'Mail':
+          result = {
+            body: message.body,
+            title: message.title
+          };
+          break;
+      }
+      return result;
+    },
+
+    sendViewUrl: function r_sendViewUrl(targetUrl) {
+      navigator.mozApps.getSelf().onsuccess = function(evt) {
+        var selfApp = evt.target.result;
+        var iacmsg = {
+          type: 'view',
+          data: {
+            type: 'url',
+            url: targetUrl,
+          }
+        };
+        selfApp.connect('webpage-open').then(function (ports) {
+          ports.forEach(function(port) {
+            port.postMessage(iacmsg);
+          });
+          this._sendMessage('ack');
+        }.bind(this),
+        function () {
+          console.warn('Sending view request failed.');
+          this._sendMessage('ack', {'error': 'webpage-open failed'});
+        });
+      }.bind(this);
+    },
+
+    _handleMessage: function r_handleMessage(evt) {
+      DEBUG && console.log('Got message:' + evt.data);
+      var rawdata = '[' + evt.data.replace('}{', '},{') + ']';
+      var messages = JSON.parse(rawdata);
+      messages.forEach(message => {
+        var renderedMessage = this._renderMessage(message);
+
+        if (renderedMessage) {
+          new Notification(renderedMessage.title, {
+            body: renderedMessage.body,
+            icon: DEFAULT_ICON_URL
+          });
+        }
+      });
+    },
+
+    _handleStateChange: function r_handleStateChange() {
+      DEBUG && console.log('connection state:' + this._connection.state);
+      if(this._connection.state !== 'connected') {
+        this.uninit();
+        window.close();
+      }
+    }
+  };
+
+  exports.Receiver = Receiver;
+
+}(window));