123 lines
3.2 KiB
JavaScript
123 lines
3.2 KiB
JavaScript
/*
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Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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//>>built
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define("dojo/dnd/Manager",["../main","../Evented","./common","./autoscroll","./Avatar"],function(_1,_2){
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var _3=_1.declare("dojo.dnd.Manager",[_2],{constructor:function(){
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this.avatar=null;
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this.source=null;
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this.nodes=[];
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this.copy=true;
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this.target=null;
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this.canDropFlag=false;
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this.events=[];
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},OFFSET_X:16,OFFSET_Y:16,overSource:function(_4){
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if(this.avatar){
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this.target=(_4&&_4.targetState!="Disabled")?_4:null;
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this.canDropFlag=Boolean(this.target);
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this.avatar.update();
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}
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_1.publish("/dnd/source/over",[_4]);
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},outSource:function(_5){
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if(this.avatar){
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if(this.target==_5){
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this.target=null;
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this.canDropFlag=false;
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this.avatar.update();
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_1.publish("/dnd/source/over",[null]);
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}
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}else{
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_1.publish("/dnd/source/over",[null]);
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}
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},startDrag:function(_6,_7,_8){
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this.source=_6;
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this.nodes=_7;
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this.copy=Boolean(_8);
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this.avatar=this.makeAvatar();
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_1.body().appendChild(this.avatar.node);
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_1.publish("/dnd/start",[_6,_7,this.copy]);
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this.events=[_1.connect(_1.doc,"onmousemove",this,"onMouseMove"),_1.connect(_1.doc,"onmouseup",this,"onMouseUp"),_1.connect(_1.doc,"onkeydown",this,"onKeyDown"),_1.connect(_1.doc,"onkeyup",this,"onKeyUp"),_1.connect(_1.doc,"ondragstart",_1.stopEvent),_1.connect(_1.body(),"onselectstart",_1.stopEvent)];
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var c="dojoDnd"+(_8?"Copy":"Move");
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_1.addClass(_1.body(),c);
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},canDrop:function(_9){
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var _a=Boolean(this.target&&_9);
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if(this.canDropFlag!=_a){
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this.canDropFlag=_a;
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this.avatar.update();
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}
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},stopDrag:function(){
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_1.removeClass(_1.body(),["dojoDndCopy","dojoDndMove"]);
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_1.forEach(this.events,_1.disconnect);
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this.events=[];
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this.avatar.destroy();
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this.avatar=null;
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this.source=this.target=null;
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this.nodes=[];
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},makeAvatar:function(){
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return new _1.dnd.Avatar(this);
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},updateAvatar:function(){
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this.avatar.update();
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},onMouseMove:function(e){
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var a=this.avatar;
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if(a){
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_1.dnd.autoScrollNodes(e);
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var s=a.node.style;
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s.left=(e.pageX+this.OFFSET_X)+"px";
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s.top=(e.pageY+this.OFFSET_Y)+"px";
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var _b=Boolean(this.source.copyState(_1.isCopyKey(e)));
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if(this.copy!=_b){
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this._setCopyStatus(_b);
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}
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}
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},onMouseUp:function(e){
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if(this.avatar){
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if(this.target&&this.canDropFlag){
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var _c=Boolean(this.source.copyState(_1.isCopyKey(e))),_d=[this.source,this.nodes,_c,this.target,e];
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_1.publish("/dnd/drop/before",_d);
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_1.publish("/dnd/drop",_d);
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}else{
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_1.publish("/dnd/cancel");
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}
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this.stopDrag();
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}
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},onKeyDown:function(e){
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if(this.avatar){
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switch(e.keyCode){
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case _1.keys.CTRL:
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var _e=Boolean(this.source.copyState(true));
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if(this.copy!=_e){
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this._setCopyStatus(_e);
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}
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break;
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case _1.keys.ESCAPE:
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_1.publish("/dnd/cancel");
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this.stopDrag();
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break;
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}
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}
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},onKeyUp:function(e){
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if(this.avatar&&e.keyCode==_1.keys.CTRL){
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var _f=Boolean(this.source.copyState(false));
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if(this.copy!=_f){
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this._setCopyStatus(_f);
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}
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}
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},_setCopyStatus:function(_10){
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this.copy=_10;
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this.source._markDndStatus(this.copy);
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this.updateAvatar();
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_1.replaceClass(_1.body(),"dojoDnd"+(this.copy?"Copy":"Move"),"dojoDnd"+(this.copy?"Move":"Copy"));
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}});
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_1.dnd._manager=null;
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_3.manager=_1.dnd.manager=function(){
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if(!_1.dnd._manager){
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_1.dnd._manager=new _1.dnd.Manager();
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}
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return _1.dnd._manager;
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};
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return _3;
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});
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