lib/dijit/tree/TreeStoreModel.js

   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["dijit.tree.TreeStoreModel"]){
   9 dojo._hasResource["dijit.tree.TreeStoreModel"]=true;
  10 dojo.provide("dijit.tree.TreeStoreModel");
  11 dojo.declare("dijit.tree.TreeStoreModel",null,{store:null,childrenAttrs:["children"],newItemIdAttr:"id",labelAttr:"",root:null,query:null,deferItemLoadingUntilExpand:false,constructor:function(_1){
  12 dojo.mixin(this,_1);
  13 this.connects=[];
  14 var _2=this.store;
  15 if(!_2.getFeatures()["dojo.data.api.Identity"]){
  16 throw new Error("dijit.Tree: store must support dojo.data.Identity");
  17 }
  18 if(_2.getFeatures()["dojo.data.api.Notification"]){
  19 this.connects=this.connects.concat([dojo.connect(_2,"onNew",this,"onNewItem"),dojo.connect(_2,"onDelete",this,"onDeleteItem"),dojo.connect(_2,"onSet",this,"onSetItem")]);
  20 }
  21 },destroy:function(){
  22 dojo.forEach(this.connects,dojo.disconnect);
  23 },getRoot:function(_3,_4){
  24 if(this.root){
  25 _3(this.root);
  26 }else{
  27 this.store.fetch({query:this.query,onComplete:dojo.hitch(this,function(_5){
  28 if(_5.length!=1){
  29 throw new Error(this.declaredClass+": query "+dojo.toJson(this.query)+" returned "+_5.length+" items, but must return exactly one item");
  30 }
  31 this.root=_5[0];
  32 _3(this.root);
  33 }),onError:_4});
  34 }
  35 },mayHaveChildren:function(_6){
  36 return dojo.some(this.childrenAttrs,function(_7){
  37 return this.store.hasAttribute(_6,_7);
  38 },this);
  39 },getChildren:function(_8,_9,_a){
  40 var _b=this.store;
  41 if(!_b.isItemLoaded(_8)){
  42 var _c=dojo.hitch(this,arguments.callee);
  43 _b.loadItem({item:_8,onItem:function(_d){
  44 _c(_d,_9,_a);
  45 },onError:_a});
  46 return;
  47 }
  48 var _e=[];
  49 for(var i=0;i<this.childrenAttrs.length;i++){
  50 var _f=_b.getValues(_8,this.childrenAttrs[i]);
  51 _e=_e.concat(_f);
  52 }
  53 var _10=0;
  54 if(!this.deferItemLoadingUntilExpand){
  55 dojo.forEach(_e,function(_11){
  56 if(!_b.isItemLoaded(_11)){
  57 _10++;
  58 }
  59 });
  60 }
  61 if(_10==0){
  62 _9(_e);
  63 }else{
  64 dojo.forEach(_e,function(_12,idx){
  65 if(!_b.isItemLoaded(_12)){
  66 _b.loadItem({item:_12,onItem:function(_13){
  67 _e[idx]=_13;
  68 if(--_10==0){
  69 _9(_e);
  70 }
  71 },onError:_a});
  72 }
  73 });
  74 }
  75 },isItem:function(_14){
  76 return this.store.isItem(_14);
  77 },fetchItemByIdentity:function(_15){
  78 this.store.fetchItemByIdentity(_15);
  79 },getIdentity:function(_16){
  80 return this.store.getIdentity(_16);
  81 },getLabel:function(_17){
  82 if(this.labelAttr){
  83 return this.store.getValue(_17,this.labelAttr);
  84 }else{
  85 return this.store.getLabel(_17);
  86 }
  87 },newItem:function(_18,_19,_1a){
  88 var _1b={parent:_19,attribute:this.childrenAttrs[0],insertIndex:_1a};
  89 if(this.newItemIdAttr&&_18[this.newItemIdAttr]){
  90 this.fetchItemByIdentity({identity:_18[this.newItemIdAttr],scope:this,onItem:function(_1c){
  91 if(_1c){
  92 this.pasteItem(_1c,null,_19,true,_1a);
  93 }else{
  94 this.store.newItem(_18,_1b);
  95 }
  96 }});
  97 }else{
  98 this.store.newItem(_18,_1b);
  99 }
 100 },pasteItem:function(_1d,_1e,_1f,_20,_21){
 101 var _22=this.store,_23=this.childrenAttrs[0];
 102 if(_1e){
 103 dojo.forEach(this.childrenAttrs,function(_24){
 104 if(_22.containsValue(_1e,_24,_1d)){
 105 if(!_20){
 106 var _25=dojo.filter(_22.getValues(_1e,_24),function(x){
 107 return x!=_1d;
 108 });
 109 _22.setValues(_1e,_24,_25);
 110 }
 111 _23=_24;
 112 }
 113 });
 114 }
 115 if(_1f){
 116 if(typeof _21=="number"){
 117 var _26=_22.getValues(_1f,_23).slice();
 118 _26.splice(_21,0,_1d);
 119 _22.setValues(_1f,_23,_26);
 120 }else{
 121 _22.setValues(_1f,_23,_22.getValues(_1f,_23).concat(_1d));
 122 }
 123 }
 124 },onChange:function(_27){
 125 },onChildrenChange:function(_28,_29){
 126 },onDelete:function(_2a,_2b){
 127 },onNewItem:function(_2c,_2d){
 128 if(!_2d){
 129 return;
 130 }
 131 this.getChildren(_2d.item,dojo.hitch(this,function(_2e){
 132 this.onChildrenChange(_2d.item,_2e);
 133 }));
 134 },onDeleteItem:function(_2f){
 135 this.onDelete(_2f);
 136 },onSetItem:function(_30,_31,_32,_33){
 137 if(dojo.indexOf(this.childrenAttrs,_31)!=-1){
 138 this.getChildren(_30,dojo.hitch(this,function(_34){
 139 this.onChildrenChange(_30,_34);
 140 }));
 141 }else{
 142 this.onChange(_30);
 143 }
 144 }});
 145 }