/*
	Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved.
	Available via Academic Free License >= 2.1 OR the modified BSD license.
	see: http://dojotoolkit.org/license for details
*/


if(!dojo._hasResource["dijit.tree.TreeStoreModel"]){dojo._hasResource["dijit.tree.TreeStoreModel"]=true;dojo.provide("dijit.tree.TreeStoreModel");dojo.declare("dijit.tree.TreeStoreModel",null,{store:null,childrenAttrs:["children"],newItemIdAttr:"id",labelAttr:"",root:null,query:null,deferItemLoadingUntilExpand:false,constructor:function(_1){dojo.mixin(this,_1);this.connects=[];var _2=this.store;if(!_2.getFeatures()["dojo.data.api.Identity"]){throw new Error("dijit.Tree: store must support dojo.data.Identity");}if(_2.getFeatures()["dojo.data.api.Notification"]){this.connects=this.connects.concat([dojo.connect(_2,"onNew",this,"onNewItem"),dojo.connect(_2,"onDelete",this,"onDeleteItem"),dojo.connect(_2,"onSet",this,"onSetItem")]);}},destroy:function(){dojo.forEach(this.connects,dojo.disconnect);},getRoot:function(_3,_4){if(this.root){_3(this.root);}else{this.store.fetch({query:this.query,onComplete:dojo.hitch(this,function(_5){if(_5.length!=1){throw new Error(this.declaredClass+": query "+dojo.toJson(this.query)+" returned "+_5.length+" items, but must return exactly one item");}this.root=_5[0];_3(this.root);}),onError:_4});}},mayHaveChildren:function(_6){return dojo.some(this.childrenAttrs,function(_7){return this.store.hasAttribute(_6,_7);},this);},getChildren:function(_8,_9,_a){var _b=this.store;if(!_b.isItemLoaded(_8)){var _c=dojo.hitch(this,arguments.callee);_b.loadItem({item:_8,onItem:function(_d){_c(_d,_9,_a);},onError:_a});return;}var _e=[];for(var i=0;i<this.childrenAttrs.length;i++){var _f=_b.getValues(_8,this.childrenAttrs[i]);_e=_e.concat(_f);}var _10=0;if(!this.deferItemLoadingUntilExpand){dojo.forEach(_e,function(_11){if(!_b.isItemLoaded(_11)){_10++;}});}if(_10==0){_9(_e);}else{var _12=function _12(_13){if(--_10==0){_9(_e);}};dojo.forEach(_e,function(_14){if(!_b.isItemLoaded(_14)){_b.loadItem({item:_14,onItem:_12,onError:_a});}});}},isItem:function(_15){return this.store.isItem(_15);},fetchItemByIdentity:function(_16){this.store.fetchItemByIdentity(_16);},getIdentity:function(_17){return this.store.getIdentity(_17);},getLabel:function(_18){if(this.labelAttr){return this.store.getValue(_18,this.labelAttr);}else{return this.store.getLabel(_18);}},newItem:function(_19,_1a,_1b){var _1c={parent:_1a,attribute:this.childrenAttrs[0],insertIndex:_1b};if(this.newItemIdAttr&&_19[this.newItemIdAttr]){this.fetchItemByIdentity({identity:_19[this.newItemIdAttr],scope:this,onItem:function(_1d){if(_1d){this.pasteItem(_1d,null,_1a,true,_1b);}else{this.store.newItem(_19,_1c);}}});}else{this.store.newItem(_19,_1c);}},pasteItem:function(_1e,_1f,_20,_21,_22){var _23=this.store,_24=this.childrenAttrs[0];if(_1f){dojo.forEach(this.childrenAttrs,function(_25){if(_23.containsValue(_1f,_25,_1e)){if(!_21){var _26=dojo.filter(_23.getValues(_1f,_25),function(x){return x!=_1e;});_23.setValues(_1f,_25,_26);}_24=_25;}});}if(_20){if(typeof _22=="number"){var _27=_23.getValues(_20,_24);_27.splice(_22,0,_1e);_23.setValues(_20,_24,_27);}else{_23.setValues(_20,_24,_23.getValues(_20,_24).concat(_1e));}}},onChange:function(_28){},onChildrenChange:function(_29,_2a){},onDelete:function(_2b,_2c){},onNewItem:function(_2d,_2e){if(!_2e){return;}this.getChildren(_2e.item,dojo.hitch(this,function(_2f){this.onChildrenChange(_2e.item,_2f);}));},onDeleteItem:function(_30){this.onDelete(_30);},onSetItem:function(_31,_32,_33,_34){if(dojo.indexOf(this.childrenAttrs,_32)!=-1){this.getChildren(_31,dojo.hitch(this,function(_35){this.onChildrenChange(_31,_35);}));}else{this.onChange(_31);}}});}