root / trunk / web / dojo / dijit / tree / TreeStoreModel.js @ 9
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/*
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Copyright (c) 2004-2010, 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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if(!dojo._hasResource["dijit.tree.TreeStoreModel"]){ |
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dojo._hasResource["dijit.tree.TreeStoreModel"]=true; |
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dojo.provide("dijit.tree.TreeStoreModel");
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dojo.declare("dijit.tree.TreeStoreModel",null,{store:null,childrenAttrs:["children"],newItemIdAttr:"id",labelAttr:"",root:null,query:null,deferItemLoadingUntilExpand:false,constructor:function(_1){ |
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dojo.mixin(this,_1);
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this.connects=[];
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var _2=this.store; |
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if(!_2.getFeatures()["dojo.data.api.Identity"]){ |
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throw new Error("dijit.Tree: store must support dojo.data.Identity"); |
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} |
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if(_2.getFeatures()["dojo.data.api.Notification"]){ |
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this.connects=this.connects.concat([dojo.connect(_2,"onNew",this,"onNewItem"),dojo.connect(_2,"onDelete",this,"onDeleteItem"),dojo.connect(_2,"onSet",this,"onSetItem")]); |
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} |
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},destroy:function(){ |
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dojo.forEach(this.connects,dojo.disconnect);
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},getRoot:function(_3,_4){ |
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if(this.root){ |
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_3(this.root);
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}else{
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this.store.fetch({query:this.query,onComplete:dojo.hitch(this,function(_5){ |
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if(_5.length!=1){ |
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throw new Error(this.declaredClass+": query "+dojo.toJson(this.query)+" returned "+_5.length+" items, but must return exactly one item"); |
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} |
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this.root=_5[0]; |
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_3(this.root);
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}),onError:_4});
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} |
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},mayHaveChildren:function(_6){ |
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return dojo.some(this.childrenAttrs,function(_7){ |
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return this.store.hasAttribute(_6,_7); |
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},this);
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},getChildren:function(_8,_9,_a){ |
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var _b=this.store; |
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if(!_b.isItemLoaded(_8)){
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var _c=dojo.hitch(this,arguments.callee); |
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_b.loadItem({item:_8,onItem:function(_d){
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_c(_d,_9,_a); |
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},onError:_a});
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return;
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} |
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var _e=[];
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for(var i=0;i<this.childrenAttrs.length;i++){ |
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var _f=_b.getValues(_8,this.childrenAttrs[i]); |
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_e=_e.concat(_f); |
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} |
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var _10=0; |
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if(!this.deferItemLoadingUntilExpand){ |
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dojo.forEach(_e,function(_11){
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if(!_b.isItemLoaded(_11)){
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_10++; |
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} |
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}); |
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} |
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if(_10==0){ |
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_9(_e); |
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}else{
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dojo.forEach(_e,function(_12,idx){
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if(!_b.isItemLoaded(_12)){
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_b.loadItem({item:_12,onItem:function(_13){
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_e[idx]=_13; |
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if(--_10==0){ |
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_9(_e); |
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} |
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},onError:_a});
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} |
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}); |
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} |
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},isItem:function(_14){ |
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return this.store.isItem(_14); |
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},fetchItemByIdentity:function(_15){ |
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this.store.fetchItemByIdentity(_15);
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},getIdentity:function(_16){ |
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return this.store.getIdentity(_16); |
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},getLabel:function(_17){ |
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if(this.labelAttr){ |
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return this.store.getValue(_17,this.labelAttr); |
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}else{
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return this.store.getLabel(_17); |
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} |
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},newItem:function(_18,_19,_1a){ |
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var _1b={parent:_19,attribute:this.childrenAttrs[0],insertIndex:_1a}; |
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if(this.newItemIdAttr&&_18[this.newItemIdAttr]){ |
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this.fetchItemByIdentity({identity:_18[this.newItemIdAttr],scope:this,onItem:function(_1c){ |
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if(_1c){
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this.pasteItem(_1c,null,_19,true,_1a); |
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}else{
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this.store.newItem(_18,_1b);
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} |
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}}); |
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}else{
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this.store.newItem(_18,_1b);
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} |
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},pasteItem:function(_1d,_1e,_1f,_20,_21){ |
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var _22=this.store,_23=this.childrenAttrs[0]; |
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if(_1e){
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dojo.forEach(this.childrenAttrs,function(_24){ |
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if(_22.containsValue(_1e,_24,_1d)){
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if(!_20){
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var _25=dojo.filter(_22.getValues(_1e,_24),function(x){ |
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return x!=_1d;
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}); |
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_22.setValues(_1e,_24,_25); |
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} |
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_23=_24; |
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} |
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}); |
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} |
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if(_1f){
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if(typeof _21=="number"){ |
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var _26=_22.getValues(_1f,_23).slice();
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_26.splice(_21,0,_1d);
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_22.setValues(_1f,_23,_26); |
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}else{
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_22.setValues(_1f,_23,_22.getValues(_1f,_23).concat(_1d)); |
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} |
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} |
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},onChange:function(_27){ |
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},onChildrenChange:function(_28,_29){ |
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},onDelete:function(_2a,_2b){ |
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},onNewItem:function(_2c,_2d){ |
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if(!_2d){
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return;
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} |
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this.getChildren(_2d.item,dojo.hitch(this,function(_2e){ |
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this.onChildrenChange(_2d.item,_2e);
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})); |
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},onDeleteItem:function(_2f){ |
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this.onDelete(_2f);
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},onSetItem:function(_30,_31,_32,_33){ |
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if(dojo.indexOf(this.childrenAttrs,_31)!=-1){ |
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this.getChildren(_30,dojo.hitch(this,function(_34){ |
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this.onChildrenChange(_30,_34);
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})); |
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}else{
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this.onChange(_30);
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} |
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}}); |
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} |