//>>built
define("dojox/dnd/BoundingBoxController",["dojo","dojox"],function(_1,_2){
return _1.declare("dojox.dnd.BoundingBoxController",null,{_startX:null,_startY:null,_endX:null,_endY:null,constructor:function(_3,_4){
this.events=[_1.connect(_1.doc,"onmousedown",this,"_onMouseDown"),_1.connect(_1.doc,"onmouseup",this,"_onMouseUp"),_1.connect(_1.doc,"onscroll",this,"_finishSelecting")];
this.subscriptions=[_1.subscribe("/dojox/bounding/cancel",this,"_finishSelecting")];
_1.forEach(_3,function(_5){
if(_5.selectByBBox){
this.subscriptions.push(_1.subscribe("/dojox/dnd/bounding",_5,"selectByBBox"));
}
},this);
this.domNode=_1.byId(_4);
_1.style(this.domNode,{position:"absolute",display:"none"});
},destroy:function(){
_1.forEach(this.events,_1.disconnect);
_1.forEach(this.subscriptions,_1.unsubscribe);
this.domNode=null;
},shouldStartDrawingBox:function(_6){
return true;
},boundingBoxIsViable:function(_7){
return true;
},_onMouseDown:function(_8){
if(this.shouldStartDrawingBox(_8)&&_1.mouseButtons.isLeft(_8)){
if(this._startX==null){
this._startX=_8.clientX;
this._startY=_8.clientY;
}
this.events.push(_1.connect(_1.doc,"onmousemove",this,"_onMouseMove"));
}
},_onMouseMove:function(_9){
this._endX=_9.clientX;
this._endY=_9.clientY;
this._drawBoundingBox();
},_onMouseUp:function(_a){
if(this._endX!==null&&this.boundingBoxIsViable(_a)){
_1.publish("/dojox/dnd/bounding",[this._startX,this._startY,this._endX,this._endY]);
}
this._finishSelecting();
},_finishSelecting:function(){
if(this._startX!==null){
_1.disconnect(this.events.pop());
_1.style(this.domNode,"display","none");
this._startX=null;
this._endX=null;
}
},_drawBoundingBox:function(){
_1.style(this.domNode,{left:Math.min(this._startX,this._endX)+"px",top:Math.min(this._startY,this._endY)+"px",width:Math.abs(this._startX-this._endX)+"px",height:Math.abs(this._startY-this._endY)+"px",display:""});
}});
});