this._tryReady();},_listenImpl:function(node,eventName,methodName){var model=this;var host=this._rootDataHost;var handler=host._createEventHandler(node,eventName,methodName);var decorated=function(e){e.model=model;handler(e);};host._listen(node,eventName,decorated);},_scopeElementClassImpl:function(node,value){var host=this._rootDataHost;if(host){return host._scopeElementClass(node,value);}