mxConstraintHandler.prototype.destroy=function(){this.reset();null!=this.resetHandler&&(this.graph.model.removeListener(this.resetHandler),this.graph.view.removeListener(this.resetHandler),this.graph.removeListener(this.resetHandler),this.resetHandler=null);null!=this.mouseleaveHandler&&null!=this.graph.container&&(mxEvent.removeListener(this.graph.container,"mouseleave",this.mouseleaveHandler),this.mouseleaveHandler=null)};