mxPanningHandler.prototype.start=function(a){this.dx0=-this.graph.container.scrollLeft;this.dy0=-this.graph.container.scrollTop;this.startX=a.getX();this.startY=a.getY();this.dy=this.dx=null;this.panningTrigger=!0};mxPanningHandler.prototype.consumePanningTrigger=function(a){a.consume()};