Angular Context object: This service serves as an application wide context for passing information and events seamlessly between controllers.

Context.js

angular.module('myApp.context', []).factory('Context', function($rootScope, $location) {
      return { 
                'contentTypeFilter': "All", 
                'contentScopeFilter': "pub", 
                'focusedItemId': -1, 
                'profileData':{},
                'broadcast': function(eventName){
                    console.log("! Broadcasting: "+ eventName);
                    $rootScope.$broadcast( eventName );
                },
                'wrapUp': function(){
                    return {id:this.focusedItemId, scope:this.contentScopeFilter, content:this.contentTypeFilter};
                },
                'feed': function(scope){
                    scope.contentTypeFilter = this.contentTypeFilter;
                    scope.contentScopeFilter = this.contentScopeFilter;
                    scope.focusedItemId = this.focusedItemId;
                    scope.profileData = this.profileData;
                }
              };
});

myController.js

function MyCtrl($scope,Context) {
  
  //dump Context onto local $scope:
  Context.feed($scope);
  
  //Shake the tree when the context is changed
  $scope.userChangedFocusItem = function(selectedItem){
    Context.focusedItemId = selectedItem.id;
    Context.broadcast("UserChangeFocusItem");
  }
  
  // Catch a change in the context and do something in consequence
  $scope.$on('ChangeContext',function(){
    Context.feed($scope);
  });
  
}