Angularjs service callback to update scope of controller

Question

A service with a 3rd party library callback function:

mbAppModule.service(\'aService\', function ($http) {
    this.data={\"somedata\":0};
    var m3rdPartLib=\         


        

Answer 1

If you´re using scope in your service then it is a good indicator that you´re breaking SRP cause your service should only retrieve data to your controller. My suggestion is that you could do something like this.

mbAppModule.service('aService', ["$http", "$rootScope", function ($http, $rootScope) {
  this.data = {
    "somedata": 0
  };
  var m3rdPartLib = "init"; // init    
  this.GetPartLib = function () { 
    return m3rdPartLib;
  }
}]);

mbAppModule.controller({
  MController: function ($scope, $http, mService) {
  this.GetPartLib = function (){ 
    mService.on('timeupdate', function() {
     this.data.somedata=1;
    });
  }
});

Answer 2

I needed to update an input field from a service because it had listeners and what not that changed data randomly and dynamically.

This could be used to call scope functions in the controller as well:

//scope will be set to current scope of a controller
//which has an ng-view containing this element    
var scope = angular.element('#input-element').scope();
//wrap changes in an apply call to make sure view and model are consistent
scope.$apply(function() {
    scope.object.data = value;
});

Thanks to this post: How do I access the $scope variable in browser's console using AngularJS?

Answer 3

You can take a dependency on $rootScope and call apply in your service.

mbAppModule.service('aService', ["$http", "$rootScope", function ($http, $rootScope) {
    this.data = {
        "somedata": 0
    };
    var m3rdPartLib = "init"; // init    
    m3rdPartLib.on('timeupdate', function () {
        $rootScope.$apply(function(){
            this.data.somedata = 1;
        });
    });
}]);

Answer 4

Use $scope.$watch function. Look at my jsfiddle. I haven't your library, so I only simulate it - the value change from 0 to 1 after 5 seconds.