root / trunk / web / dojo / dojox / dnd / BoundingBoxController.js @ 9
History | View | Annotate | Download (2.06 KB)
1 |
/*
|
---|---|
2 |
Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
|
3 |
Available via Academic Free License >= 2.1 OR the modified BSD license.
|
4 |
see: http://dojotoolkit.org/license for details
|
5 |
*/
|
6 |
|
7 |
|
8 |
if(!dojo._hasResource["dojox.dnd.BoundingBoxController"]){ |
9 |
dojo._hasResource["dojox.dnd.BoundingBoxController"]=true; |
10 |
dojo.provide("dojox.dnd.BoundingBoxController");
|
11 |
dojo.declare("dojox.dnd.BoundingBoxController",null,{_startX:null,_startY:null,_endX:null,_endY:null,constructor:function(_1,_2){ |
12 |
this.events=[dojo.connect(dojo.doc,"onmousedown",this,"_onMouseDown"),dojo.connect(dojo.doc,"onmouseup",this,"_onMouseUp"),dojo.connect(dojo.doc,"onscroll",this,"_finishSelecting")]; |
13 |
this.subscriptions=[dojo.subscribe("/dojox/bounding/cancel",this,"_finishSelecting")]; |
14 |
dojo.forEach(_1,function(_3){
|
15 |
if(_3.selectByBBox){
|
16 |
this.subscriptions.push(dojo.subscribe("/dojox/dnd/bounding",_3,"selectByBBox")); |
17 |
} |
18 |
},this);
|
19 |
this.domNode=dojo.byId(_2);
|
20 |
dojo.style(this.domNode,{position:"absolute",display:"none"}); |
21 |
},destroy:function(){ |
22 |
dojo.forEach(this.events,dojo.disconnect);
|
23 |
dojo.forEach(this.subscriptions,dojo.unsubscribe);
|
24 |
this.domNode=null; |
25 |
},boundingBoxIsViable:function(){ |
26 |
return true; |
27 |
},_onMouseDown:function(_4){ |
28 |
if(dojo.mouseButtons.isLeft(_4)){
|
29 |
if(this._startX===null){ |
30 |
this._startX=_4.clientX;
|
31 |
this._startY=_4.clientY;
|
32 |
} |
33 |
this.events.push(dojo.connect(dojo.doc,"onmousemove",this,"_onMouseMove")); |
34 |
} |
35 |
},_onMouseMove:function(_5){ |
36 |
this._endX=_5.clientX;
|
37 |
this._endY=_5.clientY;
|
38 |
this._drawBoundingBox();
|
39 |
},_onMouseUp:function(_6){ |
40 |
if(this._endX!==null&&this.boundingBoxIsViable()){ |
41 |
dojo.publish("/dojox/dnd/bounding",[this._startX,this._startY,this._endX,this._endY]); |
42 |
} |
43 |
this._finishSelecting();
|
44 |
},_finishSelecting:function(){ |
45 |
if(this._startX!==null){ |
46 |
dojo.disconnect(this.events.pop());
|
47 |
dojo.style(this.domNode,"display","none"); |
48 |
this._startX=this._endX=null; |
49 |
} |
50 |
},_drawBoundingBox:function(){ |
51 |
dojo.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:""}); |
52 |
}}); |
53 |
} |