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i=this.canvas.get("el");e!==r&&(e&&(this._emitEvent("mouseout",t,n,e,e,r),this._emitEvent("mouseleave",t,n,e,e,r),r&&!r.get("destroyed")||(i.style.cursor=this.canvas.get("cursor"))),r&&(this._emitEvent("mouseover",t,n,r,e,r),this._emitEvent("mouseenter",t,n,r,e,r)))},t.prototype._emitDragoverEvents=function(t,n,e,r,i){r?(r!==e&&(e&&this._emitEvent("dragleave",t,n,e,e,r),this._emitEvent("dragenter",t,n,r,e,r)),i||this._emitEvent("dragover",t,n,r)):e&&this._emitEvent("dragleave",t,n,e,e,r),i&&this._emitEvent("dragover",t,n,r)},t.prototype._afterDrag=function(t,n,e){t&&(t.set("capture",!0),this.draggingShape=null),this.dragging=!1;var r=this._getShape(n,e);r!==t&&this._emitMouseoverEvents(e,n,t,r),this.currentShape=r},t.prototype._onmouseup=function(t,n,e){if(0===e.button){var r=this.draggingShape;this.dragging?(r&&this._emitEvent("drop",e,t,n),this._emitEvent("dragend",e,t,r),this._afterDrag(r,t,e)):(this._emitEvent("mouseup",e,t,n),n===this.mousedownShape&&this._emitEvent("click",e,t,n),this.mousedownShape=null,this.mousedownPoint=null)}},t.prototype._ondragover=function(t,n,e){e.preventDefault();var r=this.currentShape;this._emitDragoverEvents(e,t,r,n,!0)},t.prototype._onmousemove=function(t,n,e){var r=this.canvas,i=this.currentShape,a=this.draggingShape;if(this.dragging)a&&this._emitDragoverEvents(e,t,i,n,!1),this._emitEvent("drag",e,t,a);else{var o=this.mousedownPoint;if(o){var u=this.mousedownShape,s=e.timeStamp-this.mousedownTimeStamp,c=o.clientX-t.clientX,f=o.clientY-t.clientY;s>120||c*c+f*f>40?u&&u.get("draggable")?((a=this.mousedownShape).set("capture",!1),this.draggingShape=a,this.dragging=!0,this._emitEvent("dragstart",e,t,a),this.mousedownShape=null,this.mousedownPoint=null):!u&&r.get("draggable")?(this.dragging=!0,this._emitEvent("dragstart",e,t,null),this.mousedownShape=null,this.mousedownPoint=null):(this._emitMouseoverEvents(e,t,i,n),this._emitEvent("mousemove",e,t,n)):(this._emitMouseoverEvents(e,t,i,n),this._emitEvent("mousemove",e,t,n))}else this._emitMouseoverEvents(e,t,i,n),this._emitEvent("mousemove",e,t,n)}},t.prototype._emitEvent=function(t,n,e,r,i,a){var o=this._getEventObj(t,n,e,r,i,a);if(r){o.shape=r,rn(r,t,o);for(var 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