root / trunk / web / dojo / dijit / tree / dndSource.js @ 9
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dijit.tree.dndSource"]){ |
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| 9 | dojo._hasResource["dijit.tree.dndSource"]=true; |
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| 10 | dojo.provide("dijit.tree.dndSource");
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| 11 | dojo.require("dijit.tree._dndSelector");
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| 12 | dojo.require("dojo.dnd.Manager");
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| 13 | dojo.declare("dijit.tree.dndSource",dijit.tree._dndSelector,{isSource:true,accept:["text","treeNode"],copyOnly:false,dragThreshold:5,betweenThreshold:0,constructor:function(_1,_2){ |
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| 14 | if(!_2){
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| 15 | _2={};
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| 16 | } |
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| 17 | dojo.mixin(this,_2);
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| 18 | this.isSource=typeof _2.isSource=="undefined"?true:_2.isSource; |
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| 19 | var _3=_2.accept instanceof Array?_2.accept:["text","treeNode"]; |
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| 20 | this.accept=null; |
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| 21 | if(_3.length){
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| 22 | this.accept={};
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| 23 | for(var i=0;i<_3.length;++i){ |
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| 24 | this.accept[_3[i]]=1; |
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| 25 | } |
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| 26 | } |
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| 27 | this.isDragging=false; |
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| 28 | this.mouseDown=false; |
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| 29 | this.targetAnchor=null; |
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| 30 | this.targetBox=null; |
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| 31 | this.dropPosition=""; |
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| 32 | this._lastX=0; |
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| 33 | this._lastY=0; |
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| 34 | this.sourceState=""; |
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| 35 | if(this.isSource){ |
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| 36 | dojo.addClass(this.node,"dojoDndSource"); |
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| 37 | } |
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| 38 | this.targetState=""; |
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| 39 | if(this.accept){ |
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| 40 | dojo.addClass(this.node,"dojoDndTarget"); |
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| 41 | } |
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| 42 | this.topics=[dojo.subscribe("/dnd/source/over",this,"onDndSourceOver"),dojo.subscribe("/dnd/start",this,"onDndStart"),dojo.subscribe("/dnd/drop",this,"onDndDrop"),dojo.subscribe("/dnd/cancel",this,"onDndCancel")]; |
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| 43 | },checkAcceptance:function(_4,_5){ |
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| 44 | return true; |
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| 45 | },copyState:function(_6){ |
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| 46 | return this.copyOnly||_6; |
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| 47 | },destroy:function(){ |
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| 48 | this.inherited("destroy",arguments); |
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| 49 | dojo.forEach(this.topics,dojo.unsubscribe);
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| 50 | this.targetAnchor=null; |
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| 51 | },_onDragMouse:function(e){ |
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| 52 | var m=dojo.dnd.manager(),_7=this.targetAnchor,_8=this.current,_9=this.currentWidget,_a=this.dropPosition; |
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| 53 | var _b="Over"; |
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| 54 | if(_8&&this.betweenThreshold>0){ |
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| 55 | if(!this.targetBox||_7!=_8){ |
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| 56 | this.targetBox=dojo.position(_8,true); |
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| 57 | } |
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| 58 | if((e.pageY-this.targetBox.y)<=this.betweenThreshold){ |
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| 59 | _b="Before";
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| 60 | }else{
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| 61 | if((e.pageY-this.targetBox.y)>=(this.targetBox.h-this.betweenThreshold)){ |
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| 62 | _b="After";
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| 63 | } |
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| 64 | } |
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| 65 | } |
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| 66 | if(_8!=_7||_b!=_a){
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| 67 | if(_7){
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| 68 | this._removeItemClass(_7,_a);
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| 69 | } |
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| 70 | if(_8){
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| 71 | this._addItemClass(_8,_b);
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| 72 | } |
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| 73 | if(!_8){
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| 74 | m.canDrop(false);
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| 75 | }else{
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| 76 | if(_9==this.tree.rootNode&&_b!="Over"){ |
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| 77 | m.canDrop(false);
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| 78 | }else{
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| 79 | if(m.source==this&&(_8.id in this.selection)){ |
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| 80 | m.canDrop(false);
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| 81 | }else{
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| 82 | if(this.checkItemAcceptance(_8,m.source,_b.toLowerCase())&&!this._isParentChildDrop(m.source,_8)){ |
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| 83 | m.canDrop(true);
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| 84 | }else{
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| 85 | m.canDrop(false);
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| 86 | } |
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| 87 | } |
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| 88 | } |
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| 89 | } |
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| 90 | this.targetAnchor=_8;
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| 91 | this.dropPosition=_b;
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| 92 | } |
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| 93 | },onMouseMove:function(e){ |
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| 94 | if(this.isDragging&&this.targetState=="Disabled"){ |
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| 95 | return;
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| 96 | } |
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| 97 | this.inherited(arguments); |
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| 98 | var m=dojo.dnd.manager();
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| 99 | if(this.isDragging){ |
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| 100 | this._onDragMouse(e);
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| 101 | }else{
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| 102 | if(this.mouseDown&&this.isSource&&(Math.abs(e.pageX-this._lastX)>=this.dragThreshold||Math.abs(e.pageY-this._lastY)>=this.dragThreshold)){ |
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| 103 | var n=this.getSelectedNodes(); |
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| 104 | var _c=[];
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| 105 | for(var i in n){ |
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| 106 | _c.push(n[i]); |
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| 107 | } |
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| 108 | if(_c.length){
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| 109 | m.startDrag(this,_c,this.copyState(dojo.isCopyKey(e))); |
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| 110 | } |
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| 111 | } |
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| 112 | } |
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| 113 | },onMouseDown:function(e){ |
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| 114 | this.mouseDown=true; |
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| 115 | this.mouseButton=e.button;
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| 116 | this._lastX=e.pageX;
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| 117 | this._lastY=e.pageY;
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| 118 | this.inherited("onMouseDown",arguments); |
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| 119 | },onMouseUp:function(e){ |
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| 120 | if(this.mouseDown){ |
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| 121 | this.mouseDown=false; |
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| 122 | this.inherited("onMouseUp",arguments); |
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| 123 | } |
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| 124 | },onMouseOut:function(){ |
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| 125 | this.inherited(arguments); |
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| 126 | this._unmarkTargetAnchor();
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| 127 | },checkItemAcceptance:function(_d,_e,_f){ |
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| 128 | return true; |
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| 129 | },onDndSourceOver:function(_10){ |
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| 130 | if(this!=_10){ |
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| 131 | this.mouseDown=false; |
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| 132 | this._unmarkTargetAnchor();
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| 133 | }else{
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| 134 | if(this.isDragging){ |
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| 135 | var m=dojo.dnd.manager();
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| 136 | m.canDrop(false);
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| 137 | } |
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| 138 | } |
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| 139 | },onDndStart:function(_11,_12,_13){ |
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| 140 | if(this.isSource){ |
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| 141 | this._changeState("Source",this==_11?(_13?"Copied":"Moved"):""); |
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| 142 | } |
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| 143 | var _14=this.checkAcceptance(_11,_12); |
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| 144 | this._changeState("Target",_14?"":"Disabled"); |
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| 145 | if(this==_11){ |
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| 146 | dojo.dnd.manager().overSource(this);
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| 147 | } |
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| 148 | this.isDragging=true; |
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| 149 | },itemCreator:function(_15,_16,_17){ |
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| 150 | return dojo.map(_15,function(_18){ |
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| 151 | return {"id":_18.id,"name":_18.textContent||_18.innerText||""}; |
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| 152 | }); |
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| 153 | },onDndDrop:function(_19,_1a,_1b){ |
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| 154 | if(this.containerState=="Over"){ |
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| 155 | var _1c=this.tree,_1d=_1c.model,_1e=this.targetAnchor,_1f=false; |
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| 156 | this.isDragging=false; |
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| 157 | var _20=dijit.getEnclosingWidget(_1e);
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| 158 | var _21;
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| 159 | var _22;
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| 160 | _21=(_20&&_20.item)||_1c.item; |
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| 161 | if(this.dropPosition=="Before"||this.dropPosition=="After"){ |
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| 162 | _21=(_20.getParent()&&_20.getParent().item)||_1c.item; |
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| 163 | _22=_20.getIndexInParent(); |
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| 164 | if(this.dropPosition=="After"){ |
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| 165 | _22=_20.getIndexInParent()+1;
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| 166 | } |
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| 167 | }else{
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| 168 | _21=(_20&&_20.item)||_1c.item; |
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| 169 | } |
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| 170 | var _23;
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| 171 | dojo.forEach(_1a,function(_24,idx){
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| 172 | var _25=_19.getItem(_24.id);
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| 173 | if(dojo.indexOf(_25.type,"treeNode")!=-1){ |
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| 174 | var _26=_25.data,_27=_26.item,_28=_26.getParent().item;
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| 175 | } |
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| 176 | if(_19==this){ |
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| 177 | if(typeof _22=="number"){ |
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| 178 | if(_21==_28&&_26.getIndexInParent()<_22){
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| 179 | _22-=1;
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| 180 | } |
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| 181 | } |
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| 182 | _1d.pasteItem(_27,_28,_21,_1b,_22); |
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| 183 | }else{
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| 184 | if(_1d.isItem(_27)){
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| 185 | _1d.pasteItem(_27,_28,_21,_1b,_22); |
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| 186 | }else{
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| 187 | if(!_23){
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| 188 | _23=this.itemCreator(_1a,_1e,_19);
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| 189 | } |
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| 190 | _1d.newItem(_23[idx],_21,_22); |
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| 191 | } |
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| 192 | } |
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| 193 | },this);
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| 194 | this.tree._expandNode(_20);
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| 195 | } |
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| 196 | this.onDndCancel();
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| 197 | },onDndCancel:function(){ |
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| 198 | this._unmarkTargetAnchor();
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| 199 | this.isDragging=false; |
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| 200 | this.mouseDown=false; |
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| 201 | delete this.mouseButton; |
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| 202 | this._changeState("Source",""); |
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| 203 | this._changeState("Target",""); |
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| 204 | },onOverEvent:function(){ |
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| 205 | this.inherited(arguments); |
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| 206 | dojo.dnd.manager().overSource(this);
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| 207 | },onOutEvent:function(){ |
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| 208 | this._unmarkTargetAnchor();
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| 209 | var m=dojo.dnd.manager();
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| 210 | if(this.isDragging){ |
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| 211 | m.canDrop(false);
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| 212 | } |
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| 213 | m.outSource(this);
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| 214 | this.inherited(arguments); |
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| 215 | },_isParentChildDrop:function(_29,_2a){ |
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| 216 | if(!_29.tree||_29.tree!=this.tree){ |
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| 217 | return false; |
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| 218 | } |
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| 219 | var _2b=_29.tree.domNode;
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| 220 | var ids={};
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| 221 | for(var x in _29.selection){ |
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| 222 | ids[_29.selection[x].parentNode.id]=true;
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| 223 | } |
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| 224 | var _2c=_2a.parentNode;
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| 225 | while(_2c!=_2b&&(!_2c.id||!ids[_2c.id])){
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| 226 | _2c=_2c.parentNode; |
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| 227 | } |
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| 228 | return _2c.id&&ids[_2c.id];
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| 229 | },_unmarkTargetAnchor:function(){ |
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| 230 | if(!this.targetAnchor){ |
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| 231 | return;
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| 232 | } |
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| 233 | this._removeItemClass(this.targetAnchor,this.dropPosition); |
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| 234 | this.targetAnchor=null; |
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| 235 | this.targetBox=null; |
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| 236 | this.dropPosition=null; |
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| 237 | },_markDndStatus:function(_2d){ |
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| 238 | this._changeState("Source",_2d?"Copied":"Moved"); |
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| 239 | }}); |
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| 240 | } |