mxPanningHandler.prototype.isForcePanningEvent=function(a){return this.ignoreCell||mxEvent.isMultiTouchEvent(a.getEvent())};mxPanningHandler.prototype.mouseDown=function(a,b){this.mouseDownEvent=b;!b.isConsumed()&&this.isPanningEnabled()&&!this.active&&this.isPanningTrigger(b)&&(this.start(b),this.consumePanningTrigger(b))};