agneta-angularjs/source/main/socket.module.js

Create your agneta applications with AngularJS

/*   Copyright 2017 Agneta Network Applications, LLC.
 *
 *   Source file: theme/source/main/socket.js
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

/*global socketCluster*/

var app = angular.module('MainApp');

app.factory('SocketIO', function($rootScope) {

  $rootScope.system = {};

  var socket = socketCluster.connect({
    host: agneta.services.host,
    path: '/socket',
    autoReconnect: true
  });

  socket.on('disconnect', function() {
    $rootScope.system.notification = {
      level: 'error',
      message: 'You are disconnected from the server.'
    };
  });

  socket.on('connect', function() {
    $rootScope.system.notification = null;
  });

  socket.on('unauthorized', function() {
    console.error({
      title: 'Unauthorized',
      content: 'You are not able to connect with the socket server because you have unauthorized access privileges.'
    });
  });

  socket.on('error', function(err) {
    console.error(err);
  });

  function connect(namespace) {

    return {
      on: function(name, cb) {
        var channel = socket.subscribe(getName(name));
        channel.watch(cb);
        return channel;
      },
      once: function(name, cb) {
        name = getName(name);
        var channel = socket.subscribe(name);
        channel.watch(function() {
          socket.unsubscribe(name);
          cb();
        });
      },
      emit: function(name, data) {
        socket.publish(getName(name), data);
      },
      removeAllListeners: function(name) {
        socket.unsubscribe(getName(name));
      }
    };

    function getName(name) {
      return namespace + '.' + name;
    }

  }

  return {
    connect: connect,
    socket: socket
  };

});