meanTorrent/modules/chat/client/controllers/chat.client.controller.js

'use strict';

// Create the 'chat' controller
angular.module('chat').controller('ChatController', ['$scope', '$location', 'Authentication', 'Socket',
    function($scope, $location, Authentication, Socket) {
    	// Create a messages array
        $scope.messages = [];
        
        // If user is not signed in then redirect back home
        if (!Authentication.user) $location.path('/');
        
        // Make sure the Socket is connected
        if (!Socket.socket) {
            Socket.connect();
        }

        // Add an event listener to the 'chatMessage' event
        Socket.on('chatMessage', function(message) {
            $scope.messages.unshift(message);
        });
        
        // Create a controller method for sending messages
        $scope.sendMessage = function() {
        	// Create a new message object
            var message = {
                text: this.messageText
            };
            
            // Emit a 'chatMessage' message event
            Socket.emit('chatMessage', message);
            
            // Clear the message text
            this.messageText = '';
        };

        // Remove the event listener when the controller instance is destroyed
        $scope.$on('$destroy', function() {
            Socket.removeListener('chatMessage');
        });

    }
]);