root / trunk / web / dojo / dojox / data / AtomReadStore.js @ 12
History | View | Annotate | Download (7.27 KB)
| 1 | 9 | andrej.cim | /*
|
|---|---|---|---|
| 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["dojox.data.AtomReadStore"]){ |
||
| 9 | dojo._hasResource["dojox.data.AtomReadStore"]=true; |
||
| 10 | dojo.provide("dojox.data.AtomReadStore");
|
||
| 11 | dojo.require("dojo.data.util.simpleFetch");
|
||
| 12 | dojo.require("dojo.data.util.filter");
|
||
| 13 | dojo.require("dojo.date.stamp");
|
||
| 14 | dojo.experimental("dojox.data.AtomReadStore");
|
||
| 15 | dojo.declare("dojox.data.AtomReadStore",null,{constructor:function(_1){ |
||
| 16 | if(_1){
|
||
| 17 | this.url=_1.url;
|
||
| 18 | this.rewriteUrl=_1.rewriteUrl;
|
||
| 19 | this.label=_1.label||this.label; |
||
| 20 | this.sendQuery=(_1.sendQuery||_1.sendquery||this.sendQuery); |
||
| 21 | this.unescapeHTML=_1.unescapeHTML;
|
||
| 22 | if("urlPreventCache" in _1){ |
||
| 23 | this.urlPreventCache=_1.urlPreventCache?true:false; |
||
| 24 | } |
||
| 25 | } |
||
| 26 | if(!this.url){ |
||
| 27 | throw new Error("AtomReadStore: a URL must be specified when creating the data store"); |
||
| 28 | } |
||
| 29 | },url:"",label:"title",sendQuery:false,unescapeHTML:false,urlPreventCache:false,getValue:function(_2,_3,_4){ |
||
| 30 | this._assertIsItem(_2);
|
||
| 31 | this._assertIsAttribute(_3);
|
||
| 32 | this._initItem(_2);
|
||
| 33 | _3=_3.toLowerCase(); |
||
| 34 | if(!_2._attribs[_3]&&!_2._parsed){
|
||
| 35 | this._parseItem(_2);
|
||
| 36 | _2._parsed=true;
|
||
| 37 | } |
||
| 38 | var _5=_2._attribs[_3];
|
||
| 39 | if(!_5&&_3=="summary"){ |
||
| 40 | var _6=this.getValue(_2,"content"); |
||
| 41 | var _7=new RegExp("/(<([^>]+)>)/g","i"); |
||
| 42 | var _8=_6.text.replace(_7,""); |
||
| 43 | _5={text:_8.substring(0,Math.min(400,_8.length)),type:"text"};
|
||
| 44 | _2._attribs[_3]=_5; |
||
| 45 | } |
||
| 46 | if(_5&&this.unescapeHTML){ |
||
| 47 | if((_3=="content"||_3=="summary"||_3=="subtitle")&&!_2["_"+_3+"Escaped"]){ |
||
| 48 | _5.text=this._unescapeHTML(_5.text);
|
||
| 49 | _2["_"+_3+"Escaped"]=true; |
||
| 50 | } |
||
| 51 | } |
||
| 52 | return _5?dojo.isArray(_5)?_5[0]:_5:_4; |
||
| 53 | },getValues:function(_9,_a){ |
||
| 54 | this._assertIsItem(_9);
|
||
| 55 | this._assertIsAttribute(_a);
|
||
| 56 | this._initItem(_9);
|
||
| 57 | _a=_a.toLowerCase(); |
||
| 58 | if(!_9._attribs[_a]){
|
||
| 59 | this._parseItem(_9);
|
||
| 60 | } |
||
| 61 | var _b=_9._attribs[_a];
|
||
| 62 | return _b?((_b.length!==undefined&&typeof (_b)!=="string")?_b:[_b]):undefined; |
||
| 63 | },getAttributes:function(_c){ |
||
| 64 | this._assertIsItem(_c);
|
||
| 65 | if(!_c._attribs){
|
||
| 66 | this._initItem(_c);
|
||
| 67 | this._parseItem(_c);
|
||
| 68 | } |
||
| 69 | var _d=[];
|
||
| 70 | for(var x in _c._attribs){ |
||
| 71 | _d.push(x); |
||
| 72 | } |
||
| 73 | return _d;
|
||
| 74 | },hasAttribute:function(_e,_f){ |
||
| 75 | return (this.getValue(_e,_f)!==undefined); |
||
| 76 | },containsValue:function(_10,_11,_12){ |
||
| 77 | var _13=this.getValues(_10,_11); |
||
| 78 | for(var i=0;i<_13.length;i++){ |
||
| 79 | if((typeof _12==="string")){ |
||
| 80 | if(_13[i].toString&&_13[i].toString()===_12){
|
||
| 81 | return true; |
||
| 82 | } |
||
| 83 | }else{
|
||
| 84 | if(_13[i]===_12){
|
||
| 85 | return true; |
||
| 86 | } |
||
| 87 | } |
||
| 88 | } |
||
| 89 | return false; |
||
| 90 | },isItem:function(_14){ |
||
| 91 | if(_14&&_14.element&&_14.store&&_14.store===this){ |
||
| 92 | return true; |
||
| 93 | } |
||
| 94 | return false; |
||
| 95 | },isItemLoaded:function(_15){ |
||
| 96 | return this.isItem(_15); |
||
| 97 | },loadItem:function(_16){ |
||
| 98 | },getFeatures:function(){ |
||
| 99 | var _17={"dojo.data.api.Read":true}; |
||
| 100 | return _17;
|
||
| 101 | },getLabel:function(_18){ |
||
| 102 | if((this.label!=="")&&this.isItem(_18)){ |
||
| 103 | var _19=this.getValue(_18,this.label); |
||
| 104 | if(_19&&_19.text){
|
||
| 105 | return _19.text;
|
||
| 106 | }else{
|
||
| 107 | if(_19){
|
||
| 108 | return _19.toString();
|
||
| 109 | }else{
|
||
| 110 | return undefined; |
||
| 111 | } |
||
| 112 | } |
||
| 113 | } |
||
| 114 | return undefined; |
||
| 115 | },getLabelAttributes:function(_1a){ |
||
| 116 | if(this.label!==""){ |
||
| 117 | return [this.label]; |
||
| 118 | } |
||
| 119 | return null; |
||
| 120 | },getFeedValue:function(_1b,_1c){ |
||
| 121 | var _1d=this.getFeedValues(_1b,_1c); |
||
| 122 | if(dojo.isArray(_1d)){
|
||
| 123 | return _1d[0]; |
||
| 124 | } |
||
| 125 | return _1d;
|
||
| 126 | },getFeedValues:function(_1e,_1f){ |
||
| 127 | if(!this.doc){ |
||
| 128 | return _1f;
|
||
| 129 | } |
||
| 130 | if(!this._feedMetaData){ |
||
| 131 | this._feedMetaData={element:this.doc.getElementsByTagName("feed")[0],store:this,_attribs:{}}; |
||
| 132 | this._parseItem(this._feedMetaData); |
||
| 133 | } |
||
| 134 | return this._feedMetaData._attribs[_1e]||_1f; |
||
| 135 | },_initItem:function(_20){ |
||
| 136 | if(!_20._attribs){
|
||
| 137 | _20._attribs={};
|
||
| 138 | } |
||
| 139 | },_fetchItems:function(_21,_22,_23){ |
||
| 140 | var url=this._getFetchUrl(_21); |
||
| 141 | if(!url){
|
||
| 142 | _23(new Error("No URL specified.")); |
||
| 143 | return;
|
||
| 144 | } |
||
| 145 | var _24=(!this.sendQuery?_21:null); |
||
| 146 | var _25=this; |
||
| 147 | var _26=function(_27){ |
||
| 148 | _25.doc=_27; |
||
| 149 | var _28=_25._getItems(_27,_24);
|
||
| 150 | var _29=_21.query;
|
||
| 151 | if(_29){
|
||
| 152 | if(_29.id){
|
||
| 153 | _28=dojo.filter(_28,function(_2a){
|
||
| 154 | return (_25.getValue(_2a,"id")==_29.id); |
||
| 155 | }); |
||
| 156 | }else{
|
||
| 157 | if(_29.category){
|
||
| 158 | _28=dojo.filter(_28,function(_2b){
|
||
| 159 | var _2c=_25.getValues(_2b,"category"); |
||
| 160 | if(!_2c){
|
||
| 161 | return false; |
||
| 162 | } |
||
| 163 | return dojo.some(_2c,"return item.term=='"+_29.category+"'"); |
||
| 164 | }); |
||
| 165 | } |
||
| 166 | } |
||
| 167 | } |
||
| 168 | if(_28&&_28.length>0){ |
||
| 169 | _22(_28,_21); |
||
| 170 | }else{
|
||
| 171 | _22([],_21); |
||
| 172 | } |
||
| 173 | }; |
||
| 174 | if(this.doc){ |
||
| 175 | _26(this.doc);
|
||
| 176 | }else{
|
||
| 177 | var _2d={url:url,handleAs:"xml",preventCache:this.urlPreventCache}; |
||
| 178 | var _2e=dojo.xhrGet(_2d);
|
||
| 179 | _2e.addCallback(_26); |
||
| 180 | _2e.addErrback(function(_2f){
|
||
| 181 | _23(_2f,_21); |
||
| 182 | }); |
||
| 183 | } |
||
| 184 | },_getFetchUrl:function(_30){ |
||
| 185 | if(!this.sendQuery){ |
||
| 186 | return this.url; |
||
| 187 | } |
||
| 188 | var _31=_30.query;
|
||
| 189 | if(!_31){
|
||
| 190 | return this.url; |
||
| 191 | } |
||
| 192 | if(dojo.isString(_31)){
|
||
| 193 | return this.url+_31; |
||
| 194 | } |
||
| 195 | var _32=""; |
||
| 196 | for(var _33 in _31){ |
||
| 197 | var _34=_31[_33];
|
||
| 198 | if(_34){
|
||
| 199 | if(_32){
|
||
| 200 | _32+="&";
|
||
| 201 | } |
||
| 202 | _32+=(_33+"="+_34);
|
||
| 203 | } |
||
| 204 | } |
||
| 205 | if(!_32){
|
||
| 206 | return this.url; |
||
| 207 | } |
||
| 208 | var _35=this.url; |
||
| 209 | if(_35.indexOf("?")<0){ |
||
| 210 | _35+="?";
|
||
| 211 | }else{
|
||
| 212 | _35+="&";
|
||
| 213 | } |
||
| 214 | return _35+_32;
|
||
| 215 | },_getItems:function(_36,_37){ |
||
| 216 | if(this._items){ |
||
| 217 | return this._items; |
||
| 218 | } |
||
| 219 | var _38=[];
|
||
| 220 | var _39=[];
|
||
| 221 | if(_36.childNodes.length<1){ |
||
| 222 | this._items=_38;
|
||
| 223 | return _38;
|
||
| 224 | } |
||
| 225 | var _3a=dojo.filter(_36.childNodes,"return item.tagName && item.tagName.toLowerCase() == 'feed'"); |
||
| 226 | var _3b=_37.query;
|
||
| 227 | if(!_3a||_3a.length!=1){ |
||
| 228 | return _38;
|
||
| 229 | } |
||
| 230 | _39=dojo.filter(_3a[0].childNodes,"return item.tagName && item.tagName.toLowerCase() == 'entry'"); |
||
| 231 | if(_37.onBegin){
|
||
| 232 | _37.onBegin(_39.length,this.sendQuery?_37:{});
|
||
| 233 | } |
||
| 234 | for(var i=0;i<_39.length;i++){ |
||
| 235 | var _3c=_39[i];
|
||
| 236 | if(_3c.nodeType!=1){ |
||
| 237 | continue;
|
||
| 238 | } |
||
| 239 | _38.push(this._getItem(_3c));
|
||
| 240 | } |
||
| 241 | this._items=_38;
|
||
| 242 | return _38;
|
||
| 243 | },close:function(_3d){ |
||
| 244 | },_getItem:function(_3e){ |
||
| 245 | return {element:_3e,store:this}; |
||
| 246 | },_parseItem:function(_3f){ |
||
| 247 | var _40=_3f._attribs;
|
||
| 248 | var _41=this; |
||
| 249 | var _42,_43;
|
||
| 250 | function _44(_45){ |
||
| 251 | var txt=_45.textContent||_45.innerHTML||_45.innerXML;
|
||
| 252 | if(!txt&&_45.childNodes[0]){ |
||
| 253 | var _46=_45.childNodes[0]; |
||
| 254 | if(_46&&(_46.nodeType==3||_46.nodeType==4)){ |
||
| 255 | txt=_45.childNodes[0].nodeValue;
|
||
| 256 | } |
||
| 257 | } |
||
| 258 | return txt;
|
||
| 259 | }; |
||
| 260 | function _47(_48){ |
||
| 261 | return {text:_44(_48),type:_48.getAttribute("type")}; |
||
| 262 | }; |
||
| 263 | dojo.forEach(_3f.element.childNodes,function(_49){
|
||
| 264 | var _4a=_49.tagName?_49.tagName.toLowerCase():""; |
||
| 265 | switch(_4a){
|
||
| 266 | case "title": |
||
| 267 | _40[_4a]={text:_44(_49),type:_49.getAttribute("type")};
|
||
| 268 | break;
|
||
| 269 | case "subtitle": |
||
| 270 | case "summary": |
||
| 271 | case "content": |
||
| 272 | _40[_4a]=_47(_49); |
||
| 273 | break;
|
||
| 274 | case "author": |
||
| 275 | var _4b,_4c;
|
||
| 276 | dojo.forEach(_49.childNodes,function(_4d){
|
||
| 277 | if(!_4d.tagName){
|
||
| 278 | return;
|
||
| 279 | } |
||
| 280 | switch(_4d.tagName.toLowerCase()){
|
||
| 281 | case "name": |
||
| 282 | _4b=_4d; |
||
| 283 | break;
|
||
| 284 | case "uri": |
||
| 285 | _4c=_4d; |
||
| 286 | break;
|
||
| 287 | } |
||
| 288 | }); |
||
| 289 | var _4e={};
|
||
| 290 | if(_4b&&_4b.length==1){ |
||
| 291 | _4e.name=_44(_4b[0]);
|
||
| 292 | } |
||
| 293 | if(_4c&&_4c.length==1){ |
||
| 294 | _4e.uri=_44(_4c[0]);
|
||
| 295 | } |
||
| 296 | _40[_4a]=_4e; |
||
| 297 | break;
|
||
| 298 | case "id": |
||
| 299 | _40[_4a]=_44(_49); |
||
| 300 | break;
|
||
| 301 | case "updated": |
||
| 302 | _40[_4a]=dojo.date.stamp.fromISOString(_44(_49)); |
||
| 303 | break;
|
||
| 304 | case "published": |
||
| 305 | _40[_4a]=dojo.date.stamp.fromISOString(_44(_49)); |
||
| 306 | break;
|
||
| 307 | case "category": |
||
| 308 | if(!_40[_4a]){
|
||
| 309 | _40[_4a]=[]; |
||
| 310 | } |
||
| 311 | _40[_4a].push({scheme:_49.getAttribute("scheme"),term:_49.getAttribute("term")});
|
||
| 312 | break;
|
||
| 313 | case "link": |
||
| 314 | if(!_40[_4a]){
|
||
| 315 | _40[_4a]=[]; |
||
| 316 | } |
||
| 317 | var _4f={rel:_49.getAttribute("rel"),href:_49.getAttribute("href"),type:_49.getAttribute("type")}; |
||
| 318 | _40[_4a].push(_4f); |
||
| 319 | if(_4f.rel=="alternate"){ |
||
| 320 | _40["alternate"]=_4f;
|
||
| 321 | } |
||
| 322 | break;
|
||
| 323 | default:
|
||
| 324 | break;
|
||
| 325 | } |
||
| 326 | }); |
||
| 327 | },_unescapeHTML:function(_50){ |
||
| 328 | _50=_50.replace(/’/m,"'").replace(/″/m,"\"").replace(/</m,">").replace(/>/m,"<").replace(/&/m,"&"); |
||
| 329 | return _50;
|
||
| 330 | },_assertIsItem:function(_51){ |
||
| 331 | if(!this.isItem(_51)){ |
||
| 332 | throw new Error("dojox.data.AtomReadStore: Invalid item argument."); |
||
| 333 | } |
||
| 334 | },_assertIsAttribute:function(_52){ |
||
| 335 | if(typeof _52!=="string"){ |
||
| 336 | throw new Error("dojox.data.AtomReadStore: Invalid attribute argument."); |
||
| 337 | } |
||
| 338 | }}); |
||
| 339 | dojo.extend(dojox.data.AtomReadStore,dojo.data.util.simpleFetch); |
||
| 340 | } |