root / trunk / web / dojo / dojox / data / HtmlStore.js @ 13
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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["dojox.data.HtmlStore"]){ |
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dojo._hasResource["dojox.data.HtmlStore"]=true; |
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dojo.provide("dojox.data.HtmlStore");
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dojo.require("dojox.xml.parser");
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dojo.require("dojo.data.util.simpleFetch");
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dojo.require("dojo.data.util.filter");
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dojo.declare("dojox.data.HtmlStore",null,{constructor:function(_1){ |
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if(_1&&"urlPreventCache" in _1){ |
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this.urlPreventCache=_1.urlPreventCache?true:false; |
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} |
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if(_1&&"trimWhitespace" in _1){ |
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this.trimWhitespace=_1.trimWhitespace?true:false; |
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} |
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if(_1.url){
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if(!_1.dataId){
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throw new Error("dojo.data.HtmlStore: Cannot instantiate using url without an id!"); |
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} |
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this.url=_1.url;
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this.dataId=_1.dataId;
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}else{
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if(_1.dataId){
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this._rootNode=dojo.byId(_1.dataId);
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this.dataId=this._rootNode.id; |
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}else{
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this._rootNode=dojo.byId(this.dataId); |
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} |
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this._indexItems();
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} |
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},url:"",dataId:"",trimWhitespace:false,urlPreventCache:false,_indexItems:function(){ |
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this._getHeadings();
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if(this._rootNode.rows){ |
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if(this._rootNode.tBodies&&this._rootNode.tBodies.length>0){ |
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this._rootNode=this._rootNode.tBodies[0]; |
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} |
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var i;
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for(i=0;i<this._rootNode.rows.length;i++){ |
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this._rootNode.rows[i].store=this; |
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this._rootNode.rows[i]._ident=i+1; |
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} |
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}else{
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var c=1; |
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for(i=0;i<this._rootNode.childNodes.length;i++){ |
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if(this._rootNode.childNodes[i].nodeType===1){ |
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this._rootNode.childNodes[i].store=this; |
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this._rootNode.childNodes[i]._ident=c;
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c++; |
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} |
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} |
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} |
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},_getHeadings:function(){ |
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this._headings=[];
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if(this._rootNode.tHead){ |
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dojo.forEach(this._rootNode.tHead.rows[0].cells,dojo.hitch(this,function(th){ |
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var _2=dojox.xml.parser.textContent(th);
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this._headings.push(this.trimWhitespace?dojo.trim(_2):_2); |
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})); |
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}else{
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this._headings=["name"]; |
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} |
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},_getAllItems:function(){ |
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var _3=[];
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var i;
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if(this._rootNode.rows){ |
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for(i=0;i<this._rootNode.rows.length;i++){ |
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_3.push(this._rootNode.rows[i]);
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} |
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}else{
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for(i=0;i<this._rootNode.childNodes.length;i++){ |
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if(this._rootNode.childNodes[i].nodeType===1){ |
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_3.push(this._rootNode.childNodes[i]);
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} |
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} |
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} |
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return _3;
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},_assertIsItem:function(_4){ |
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if(!this.isItem(_4)){ |
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throw new Error("dojo.data.HtmlStore: a function was passed an item argument that was not an item"); |
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} |
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},_assertIsAttribute:function(_5){ |
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if(typeof _5!=="string"){ |
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throw new Error("dojo.data.HtmlStore: a function was passed an attribute argument that was not an attribute name string"); |
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return -1; |
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} |
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return dojo.indexOf(this._headings,_5); |
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},getValue:function(_6,_7,_8){ |
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var _9=this.getValues(_6,_7); |
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return (_9.length>0)?_9[0]:_8; |
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},getValues:function(_a,_b){ |
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this._assertIsItem(_a);
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var _c=this._assertIsAttribute(_b); |
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if(_c>-1){ |
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var _d;
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if(_a.cells){
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_d=dojox.xml.parser.textContent(_a.cells[_c]); |
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}else{
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_d=dojox.xml.parser.textContent(_a); |
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} |
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return [this.trimWhitespace?dojo.trim(_d):_d]; |
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} |
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return [];
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},getAttributes:function(_e){ |
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this._assertIsItem(_e);
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var _f=[];
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for(var i=0;i<this._headings.length;i++){ |
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if(this.hasAttribute(_e,this._headings[i])){ |
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_f.push(this._headings[i]);
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} |
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} |
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return _f;
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},hasAttribute:function(_10,_11){ |
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return this.getValues(_10,_11).length>0; |
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},containsValue:function(_12,_13,_14){ |
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var _15=undefined; |
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if(typeof _14==="string"){ |
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_15=dojo.data.util.filter.patternToRegExp(_14,false);
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} |
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return this._containsValue(_12,_13,_14,_15); |
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},_containsValue:function(_16,_17,_18,_19){ |
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var _1a=this.getValues(_16,_17); |
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for(var i=0;i<_1a.length;++i){ |
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var _1b=_1a[i];
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if(typeof _1b==="string"&&_19){ |
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return (_1b.match(_19)!==null); |
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}else{
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if(_18===_1b){
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return true; |
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} |
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} |
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} |
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return false; |
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},isItem:function(_1c){ |
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if(_1c&&_1c.store&&_1c.store===this){ |
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return true; |
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} |
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return false; |
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},isItemLoaded:function(_1d){ |
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return this.isItem(_1d); |
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},loadItem:function(_1e){ |
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this._assertIsItem(_1e.item);
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},_fetchItems:function(_1f,_20,_21){ |
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if(this._rootNode){ |
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this._finishFetchItems(_1f,_20,_21);
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}else{
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if(!this.url){ |
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this._rootNode=dojo.byId(this.dataId); |
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}else{
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var _22={url:this.url,handleAs:"text",preventCache:this.urlPreventCache}; |
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var _23=this; |
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var _24=dojo.xhrGet(_22);
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_24.addCallback(function(_25){
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var _26=function(_27,id){ |
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if(_27.id==id){
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return _27;
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} |
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if(_27.childNodes){
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for(var i=0;i<_27.childNodes.length;i++){ |
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var _28=_26(_27.childNodes[i],id);
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if(_28){
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return _28;
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} |
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} |
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} |
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return null; |
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}; |
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var d=document.createElement("div"); |
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d.innerHTML=_25; |
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_23._rootNode=_26(d,_23.dataId); |
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_23._indexItems(); |
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_23._finishFetchItems(_1f,_20,_21); |
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}); |
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_24.addErrback(function(_29){
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_21(_29,_1f); |
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}); |
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} |
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} |
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},_finishFetchItems:function(_2a,_2b,_2c){ |
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var _2d=[];
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var _2e=this._getAllItems(); |
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if(_2a.query){
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var _2f=_2a.queryOptions?_2a.queryOptions.ignoreCase:false; |
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_2d=[]; |
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var _30={};
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var key;
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var _31;
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for(key in _2a.query){ |
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_31=_2a.query[key]+"";
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if(typeof _31==="string"){ |
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_30[key]=dojo.data.util.filter.patternToRegExp(_31,_2f); |
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} |
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} |
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for(var i=0;i<_2e.length;++i){ |
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var _32=true; |
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var _33=_2e[i];
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for(key in _2a.query){ |
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_31=_2a.query[key]+"";
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if(!this._containsValue(_33,key,_31,_30[key])){ |
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_32=false;
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} |
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} |
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if(_32){
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_2d.push(_33); |
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} |
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} |
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_2b(_2d,_2a); |
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}else{
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if(_2e.length>0){ |
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_2d=_2e.slice(0,_2e.length);
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} |
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_2b(_2d,_2a); |
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} |
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},getFeatures:function(){ |
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return {"dojo.data.api.Read":true,"dojo.data.api.Identity":true}; |
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},close:function(_34){ |
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},getLabel:function(_35){ |
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if(this.isItem(_35)){ |
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if(_35.cells){
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return "Item #"+this.getIdentity(_35); |
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}else{
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return this.getValue(_35,"name"); |
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} |
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} |
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return undefined; |
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},getLabelAttributes:function(_36){ |
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if(_36.cells){
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return null; |
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}else{
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return ["name"]; |
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} |
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},getIdentity:function(_37){ |
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this._assertIsItem(_37);
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if(this.hasAttribute(_37,"name")){ |
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return this.getValue(_37,"name"); |
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}else{
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return _37._ident;
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} |
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},getIdentityAttributes:function(_38){ |
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return null; |
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},fetchItemByIdentity:function(_39){ |
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var _3a=_39.identity;
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var _3b=this; |
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var _3c=null; |
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var _3d=null; |
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if(!this._rootNode){ |
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if(!this.url){ |
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this._rootNode=dojo.byId(this.dataId); |
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this._indexItems();
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if(_3b._rootNode.rows){
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_3c=this._rootNode.rows[_3a+1]; |
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}else{
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for(var i=0;i<_3b._rootNode.childNodes.length;i++){ |
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if(_3b._rootNode.childNodes[i].nodeType===1&&_3a===dojox.xml.parser.textContent(_3b._rootNode.childNodes[i])){ |
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_3c=_3b._rootNode.childNodes[i]; |
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} |
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} |
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} |
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if(_39.onItem){
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_3d=_39.scope?_39.scope:dojo.global; |
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_39.onItem.call(_3d,_3c); |
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} |
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}else{
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var _3e={url:this.url,handleAs:"text"}; |
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var _3f=dojo.xhrGet(_3e);
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_3f.addCallback(function(_40){
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var _41=function(_42,id){ |
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if(_42.id==id){
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return _42;
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} |
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if(_42.childNodes){
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for(var i=0;i<_42.childNodes.length;i++){ |
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var _43=_41(_42.childNodes[i],id);
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if(_43){
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return _43;
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} |
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} |
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} |
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return null; |
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}; |
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var d=document.createElement("div"); |
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d.innerHTML=_40; |
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_3b._rootNode=_41(d,_3b.dataId); |
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_3b._indexItems(); |
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if(_3b._rootNode.rows&&_3a<=_3b._rootNode.rows.length){
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_3c=_3b._rootNode.rows[_3a-1];
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}else{
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for(var i=0;i<_3b._rootNode.childNodes.length;i++){ |
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if(_3b._rootNode.childNodes[i].nodeType===1&&_3a===dojox.xml.parser.textContent(_3b._rootNode.childNodes[i])){ |
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_3c=_3b._rootNode.childNodes[i]; |
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break;
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} |
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} |
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} |
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if(_39.onItem){
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_3d=_39.scope?_39.scope:dojo.global; |
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_39.onItem.call(_3d,_3c); |
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} |
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}); |
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_3f.addErrback(function(_44){
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if(_39.onError){
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_3d=_39.scope?_39.scope:dojo.global; |
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_39.onError.call(_3d,_44); |
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} |
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}); |
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} |
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}else{
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if(this._rootNode.rows[_3a+1]){ |
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_3c=this._rootNode.rows[_3a+1]; |
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if(_39.onItem){
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_3d=_39.scope?_39.scope:dojo.global; |
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_39.onItem.call(_3d,_3c); |
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} |
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} |
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} |
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}}); |
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dojo.extend(dojox.data.HtmlStore,dojo.data.util.simpleFetch); |
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} |