indicate drag/drop targets on a liferay page when a portlet is dragged

liferay-drag-drop-indicator

Liferay.on('initLayout', function(event) {
  Liferay.once(function() {
    Liferay.Layout.on([ 'drag:end', 'drag:start' ], function(event) {
      console.log('event type', event.type, event);
      AUI().one("#main-content").toggleClass('dragging', event.type == 'drag:start');
    });
  }, Liferay.Layout, 'bindDragDropListeners');
});