Demonstrates an even aggregator with Angular.js. See http://jsfiddle.net/XqDxG/452/ for a working example. Initial code taken from https://github.com/phiggins42/bloody-jquery-plugins/blob/master/pubsub.js

app.js

var myModule = angular.module('myModule', []);
myModule.factory('eventAggregator', function() {
    var cache = {};
    return {
        publish: function(topic, args) {
            cache[topic] && $.each(cache[topic], function(func) {
                this.apply(null, args || []);
            });
        },
        
        subscribe: function(topic, callback) {
            if(!cache[topic]) {
                cache[topic] = [];
  		}
            cache[topic].push(callback);
            return [topic, callback]; 
		},
        
        unsubscribe: function(handle) {
            var t = handle[0];
            cache[t] && $.each(cache[t], function(idx){
                if(this == handle[1]){
                    cache[t].splice(idx, 1);
                }
            });
		}
	}
});

function ControllerZero($scope, eventAggregator) {
    $scope.message = 'cat.mov';
    
    $scope.handleFileUploadClick = function(msg) {
        eventAggregator.publish("FileUploaded", [msg]);
    };
    
    $scope.handleFileDeletedClick = function(msg) {
        eventAggregator.publish("FileDeleted", [msg]);
    };
}

function ControllerOne($scope, eventAggregator) {
    eventAggregator.subscribe("FileUploaded", function(msg) {
        $scope.message = 'Uploaded: ' + msg;
    });
}

function ControllerTwo($scope, eventAggregator) {
    eventAggregator.subscribe("FileDeleted", function(msg) {
        $scope.message = 'Deleted: ' + msg;
    });
}

ControllerZero.$inject = ['$scope', 'eventAggregator'];        
        
ControllerOne.$inject = ['$scope', 'eventAggregator'];

ControllerTwo.$inject = ['$scope', 'eventAggregator'];

index.html

<div ng-controller="ControllerZero">
    <input ng-model="message">
    <button ng-click="handleFileUploadClick(message);">Upload</button>
    <button ng-click="handleFileDeletedClick(message);">Delete</button>
</div>

<div ng-controller="ControllerOne">
    <input ng-model="message" >
</div>

<div ng-controller="ControllerTwo">
    <input ng-model="message" >
</div>