I need to call a function which belongs to the $scope of a ng-directive used in my Angular application.
Let's say the directive is defined like this:
.directive('my-directive', ['$document', '$timeout', function ($document, $timeout) {
return {
restrict: 'E',
replace: true,
scope: {
// ....
},
controller: ['$scope', function ($scope) {
$scope.myFunction= function (mouseEnter) {
// ...
};
}
};
}]);
I need to call myFunction from my controller (let's call it my-controller) which is the controller of the view where my directive is placed.
Is it possible to do it? (eventually modifying the directive)
EDIT : The already answered question provided (proposed for edit) is similar to mine by it's not clear to me or it doesn't apparently solve the specific problem I proposed.
EDIT 2: starting from Dan M. answer (without taking mouseenter/mouseleave in consideration. just trying to make the two controllers communicate with each other), I broadcasted my event to my directive's controller through $rootScope (as there is there is no parent-child relation between the two controllers) by:
console.log("let's broadcast the event.."); // this is printed
$rootScope.$broadcast('callDirectiveControllersFunction'); // I even tried with $scope in place of $rootScope and $emit in place of $broadcast
and by receving it (within the directive's controller) by:
var myFunction = function(){
// ...
}
$scope.$on('callDirectiveControllersFunction', function (){
console.log("event received"); // this is not printed
callMyFunction();
});
// I even tried using $rootScope in place of $scope
However in no case (see comments in code) the event is received
You can call a controller function inside the link block. You can also $emit an event in the directive and listen to the it in the controller (maybe there is a use case for that).
It seems that you want to call it on
mouseenter
. You can do that by binding to themouseenter
event in the directive link. The catch is you need to $apply the changes. Take a look at the following piece of code, which contains all 3 examples: http://jsbin.com/cuvugu/8/. (also pasted below)Tip: You might want to pay attention to how you name your directives. To use a directive as
my-directive
you need to name it asmyDirective
.I also included an example with a distinct controller in the JS Bin link. That doesn't really change anything, but it seems to be an important part of your question. Here's the code block: