gistfile1.js

            var editor = new SGU.ScreenEditor('SGScreenEditor', 
              {screenWidth: SG.screenLayoutController.get('width'),
               screenHeight:SG.screenLayoutController.get('height')});
            SG.currentScreenEditor = editor;
            var surfaces = SG.screenLayoutController.get('surfaces');
            editor._surfaces = surfaces;
            surfaces.forEach(function (s) {
              s._zone = new SGU.ScreenEditor.Zone(editor);
              s.addObserver('status', {cb:function(obj) {
                console.log('status');
                console.log(obj.toString());
                if(!obj.isLoaded())
                  return;
                s._zone.create(obj.get('x'),
                              obj.get('y'), 
                              obj.get('width'), 
                              obj.get('height'));
              }}, 'cb');
              s.refresh();
            });