mxVertexHandler.prototype.destroy=function(){null!=this.escapeHandler&&(this.state.view.graph.removeListener(this.escapeHandler),this.escapeHandler=null);null!=this.preview&&(this.preview.destroy(),this.preview=null);null!=this.ghostPreview&&(this.ghostPreview.destroy(),this.ghostPreview=null);null!=this.selectionBorder&&(this.selectionBorder.destroy(),this.selectionBorder=null);null!=this.parentHighlight&&this.destroyParentHighlight();this.labelShape=null;this.removeHint();if(null!=this.sizers){for(var a=