Function updateDroppable

src/angular-dragdrop.js:355–402

(newValue, oldValue)

        var element = $(elem);
        var dropSettings, jqyouiOptions, killWatcher;
        var updateDroppable = function(newValue, oldValue) {
          if (newValue) {
            dropSettings = scope.$eval($(element).attr('jqyoui-droppable') || $(element).attr('data-jqyoui-droppable')) || {};
            jqyouiOptions = scope.$eval(attrs.jqyouiOptions) || {};
            element
              .droppable({disabled: false})
              .droppable(jqyouiOptions)
              .droppable({
                over: function(event, ui) {
                  ngDragDropService.callEventCallback(scope, dropSettings.onOver, event, ui);
                },
                out: function(event, ui) {
                  ngDragDropService.callEventCallback(scope, dropSettings.onOut, event, ui);
                },
                drop: function(event, ui) {
                  var beforeDropPromise = null;

                  if (dropSettings.beforeDrop) {
                    beforeDropPromise = ngDragDropService.callEventCallback(scope, dropSettings.beforeDrop, event, ui);
                  } else {
                    beforeDropPromise = (function() {
                      var deferred = $q.defer();
                      deferred.resolve();
                      return deferred.promise;
                    })();
                  }

                  beforeDropPromise.then(angular.bind(this, function() {
                    if ($(ui.draggable).ngattr('ng-model') && attrs.ngModel) {
                      ngDragDropService.droppableScope = scope;
                      ngDragDropService.invokeDrop($(ui.draggable), $(this), event, ui);
                    } else {
                      ngDragDropService.callEventCallback(scope, dropSettings.onDrop, event, ui);
                    }
                  }), function() {
                    ui.draggable.animate({left: '', top: ''}, jqyouiOptions.revertDuration || 0);
                  });
                }
              });
          } else {
            element.droppable({disabled: true});
          }

          if (killWatcher && angular.isDefined(newValue) && (angular.equals(attrs.drop, 'true') || angular.equals(attrs.drop, 'false'))) {
            killWatcher();
            killWatcher = null;
          }
        };

        killWatcher = scope.$watch(function() { return scope.$eval(attrs.drop); }, updateDroppable);
        updateDroppable();