directive invoke controller methods

directive-controller-communication.html

<div ng-app="twitterApp">
    <div ng-controller="AppCtrl">
      <div enter="deleteTweets()">Roll over to load more tweets</div>
    </div>
  </div>

directive-controller-communication.js

var app = angular.module("twitterApp", []);

app.controller("AppCtrl", function($scope) {
    $scope.loadMoreTweets = function() {
        alert("Loading tweets!");
    }

    $scope.deleteTweets = function() {
        alert("deleting tweets");
    }
});

app.directive("enter", function() {
    return function(scope, element, attrs) {
        element.bind("mouseenter", function() {
            scope.$apply(attrs.enter)
        })
    }
});