mxDragSource.prototype.dragOver=function(a,b){var c=mxUtils.getOffset(a.container),d=mxUtils.getScrollOrigin(a.container),e=mxEvent.getClientX(b)-c.x+d.x-a.panDx;c=mxEvent.getClientY(b)-c.y+d.y-a.panDy;a.autoScroll&&(null==this.autoscroll||this.autoscroll)&&a.scrollPointToVisible(e,c,a.autoExtend);null!=this.currentHighlight&&a.isDropEnabled()&&(this.currentDropTarget=this.getDropTarget(a,e,c,b),d=a.getView().getState(this.currentDropTarget),this.currentHighlight.highlight(d));if(null!=this.previewElement){null==