app.directive('onLongPress', function($timeout) {
      //Global variable, to cancel timer on touchend.
      var timer;

      return {
          restrict: 'A',
          link: function($scope, $elm, $attrs) {
              $elm.bind('touchstart', function(evt) {
                  // Locally scoped variable that will keep track of the long press
                  $scope.longPress = true;

                  // We'll set a timeout for 600 ms for a long press
                  timer = $timeout(function() {
                      if ($scope.longPress) {
                          // If the touchend event hasn't fired,
                          // apply the function given in on the element's on-long-press attribute
                          $scope.$apply(function() {
                              $scope.$eval($attrs.onLongPress)
                          });
                      }
                  }, 600);
                  timer;
              });

              $elm.bind('touchend', function(evt) {
                  // Prevent the onLongPress event from firing
                  $scope.longPress = false;

                  // Prevent on quick presses, unwanted onLongPress selection.
                  $timeout.cancel(timer);

                  // If there is an on-touch-end function attached to this element, apply it
                  if ($attrs.onTouchEnd) {
                      $scope.$apply(function() {
                          $scope.$eval($attrs.onTouchEnd)
                      });
                  }
              });
          }
      };
  });