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AtomReadStore.js

AtomReadStore.js 6.9 KB
Előzmények Nyers

12345678 
  1. /*
    2. 

  2. 	Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved.
    3. 

  3. 	Available via Academic Free License >= 2.1 OR the modified BSD license.
    4. 

  4. 	see: http://dojotoolkit.org/license for details
    5. 

  5. */
    6. 

  6. 

  7. 

  8. if(!dojo._hasResource["dojox.data.AtomReadStore"]){dojo._hasResource["dojox.data.AtomReadStore"]=true;dojo.provide("dojox.data.AtomReadStore");dojo.require("dojo.data.util.simpleFetch");dojo.require("dojo.data.util.filter");dojo.require("dojo.date.stamp");dojo.experimental("dojox.data.AtomReadStore");dojo.declare("dojox.data.AtomReadStore",null,{constructor:function(_1){if(_1){this.url=_1.url;this.rewriteUrl=_1.rewriteUrl;this.label=_1.label||this.label;this.sendQuery=(_1.sendQuery||_1.sendquery||this.sendQuery);this.unescapeHTML=_1.unescapeHTML;if("urlPreventCache" in _1){this.urlPreventCache=_1.urlPreventCache?true:false;}}if(!this.url){throw new Error("AtomReadStore: a URL must be specified when creating the data store");}},url:"",label:"title",sendQuery:false,unescapeHTML:false,urlPreventCache:false,getValue:function(_2,_3,_4){this._assertIsItem(_2);this._assertIsAttribute(_3);this._initItem(_2);_3=_3.toLowerCase();if(!_2._attribs[_3]&&!_2._parsed){this._parseItem(_2);_2._parsed=true;}var _5=_2._attribs[_3];if(!_5&&_3=="summary"){var _6=this.getValue(_2,"content");var _7=new RegExp("/(<([^>]+)>)/g","i");var _8=_6.text.replace(_7,"");_5={text:_8.substring(0,Math.min(400,_8.length)),type:"text"};_2._attribs[_3]=_5;}if(_5&&this.unescapeHTML){if((_3=="content"||_3=="summary"||_3=="subtitle")&&!_2["_"+_3+"Escaped"]){_5.text=this._unescapeHTML(_5.text);_2["_"+_3+"Escaped"]=true;}}return _5?dojo.isArray(_5)?_5[0]:_5:_4;},getValues:function(_9,_a){this._assertIsItem(_9);this._assertIsAttribute(_a);this._initItem(_9);_a=_a.toLowerCase();if(!_9._attribs[_a]){this._parseItem(_9);}var _b=_9._attribs[_a];return _b?((_b.length!==undefined&&typeof (_b)!=="string")?_b:[_b]):undefined;},getAttributes:function(_c){this._assertIsItem(_c);if(!_c._attribs){this._initItem(_c);this._parseItem(_c);}var _d=[];for(var x in _c._attribs){_d.push(x);}return _d;},hasAttribute:function(_e,_f){return (this.getValue(_e,_f)!==undefined);},containsValue:function(_10,_11,_12){var _13=this.getValues(_10,_11);for(var i=0;i<_13.length;i++){if((typeof _12==="string")){if(_13[i].toString&&_13[i].toString()===_12){return true;}}else{if(_13[i]===_12){return true;}}}return false;},isItem:function(_14){if(_14&&_14.element&&_14.store&&_14.store===this){return true;}return false;},isItemLoaded:function(_15){return this.isItem(_15);},loadItem:function(_16){},getFeatures:function(){var _17={"dojo.data.api.Read":true};return _17;},getLabel:function(_18){if((this.label!=="")&&this.isItem(_18)){var _19=this.getValue(_18,this.label);if(_19&&_19.text){return _19.text;}else{if(_19){return _19.toString();}else{return undefined;}}}return undefined;},getLabelAttributes:function(_1a){if(this.label!==""){return [this.label];}return null;},getFeedValue:function(_1b,_1c){var _1d=this.getFeedValues(_1b,_1c);if(dojo.isArray(_1d)){return _1d[0];}return _1d;},getFeedValues:function(_1e,_1f){if(!this.doc){return _1f;}if(!this._feedMetaData){this._feedMetaData={element:this.doc.getElementsByTagName("feed")[0],store:this,_attribs:{}};this._parseItem(this._feedMetaData);}return this._feedMetaData._attribs[_1e]||_1f;},_initItem:function(_20){if(!_20._attribs){_20._attribs={};}},_fetchItems:function(_21,_22,_23){var url=this._getFetchUrl(_21);if(!url){_23(new Error("No URL specified."));return;}var _24=(!this.sendQuery?_21:null);var _25=this;var _26=function(_27){_25.doc=_27;var _28=_25._getItems(_27,_24);var _29=_21.query;if(_29){if(_29.id){_28=dojo.filter(_28,function(_2a){return (_25.getValue(_2a,"id")==_29.id);});}else{if(_29.category){_28=dojo.filter(_28,function(_2b){var _2c=_25.getValues(_2b,"category");if(!_2c){return false;}return dojo.some(_2c,"return item.term=='"+_29.category+"'");});}}}if(_28&&_28.length>0){_22(_28,_21);}else{_22([],_21);}};if(this.doc){_26(this.doc);}else{var _2d={url:url,handleAs:"xml",preventCache:this.urlPreventCache};var _2e=dojo.xhrGet(_2d);_2e.addCallback(_26);_2e.addErrback(function(_2f){_23(_2f,_21);});}},_getFetchUrl:function(_30){if(!this.sendQuery){return this.url;}var _31=_30.query;if(!_31){return this.url;}if(dojo.isString(_31)){return this.url+_31;}var _32="";for(var _33 in _31){var _34=_31[_33];if(_34){if(_32){_32+="&";}_32+=(_33+"="+_34);}}if(!_32){return this.url;}var _35=this.url;if(_35.indexOf("?")<0){_35+="?";}else{_35+="&";}return _35+_32;},_getItems:function(_36,_37){if(this._items){return this._items;}var _38=[];var _39=[];if(_36.childNodes.length<1){this._items=_38;return _38;}var _3a=dojo.filter(_36.childNodes,"return item.tagName && item.tagName.toLowerCase() == 'feed'");var _3b=_37.query;if(!_3a||_3a.length!=1){return _38;}_39=dojo.filter(_3a[0].childNodes,"return item.tagName && item.tagName.toLowerCase() == 'entry'");if(_37.onBegin){_37.onBegin(_39.length,this.sendQuery?_37:{});}for(var i=0;i<_39.length;i++){var _3c=_39[i];if(_3c.nodeType!=1){continue;}_38.push(this._getItem(_3c));}this._items=_38;return _38;},close:function(_3d){},_getItem:function(_3e){return {element:_3e,store:this};},_parseItem:function(_3f){var _40=_3f._attribs;var _41=this;var _42,_43;function _44(_45){var txt=_45.textContent||_45.innerHTML||_45.innerXML;if(!txt&&_45.childNodes[0]){var _46=_45.childNodes[0];if(_46&&(_46.nodeType==3||_46.nodeType==4)){txt=_45.childNodes[0].nodeValue;}}return txt;};function _47(_48){return {text:_44(_48),type:_48.getAttribute("type")};};dojo.forEach(_3f.element.childNodes,function(_49){var _4a=_49.tagName?_49.tagName.toLowerCase():"";switch(_4a){case "title":_40[_4a]={text:_44(_49),type:_49.getAttribute("type")};break;case "subtitle":case "summary":case "content":_40[_4a]=_47(_49);break;case "author":var _4b,_4c;dojo.forEach(_49.childNodes,function(_4d){if(!_4d.tagName){return;}switch(_4d.tagName.toLowerCase()){case "name":_4b=_4d;break;case "uri":_4c=_4d;break;}});var _4e={};if(_4b&&_4b.length==1){_4e.name=_44(_4b[0]);}if(_4c&&_4c.length==1){_4e.uri=_44(_4c[0]);}_40[_4a]=_4e;break;case "id":_40[_4a]=_44(_49);break;case "updated":_40[_4a]=dojo.date.stamp.fromISOString(_44(_49));break;case "published":_40[_4a]=dojo.date.stamp.fromISOString(_44(_49));break;case "category":if(!_40[_4a]){_40[_4a]=[];}_40[_4a].push({scheme:_49.getAttribute("scheme"),term:_49.getAttribute("term")});break;case "link":if(!_40[_4a]){_40[_4a]=[];}var _4f={rel:_49.getAttribute("rel"),href:_49.getAttribute("href"),type:_49.getAttribute("type")};_40[_4a].push(_4f);if(_4f.rel=="alternate"){_40["alternate"]=_4f;}break;default:break;}});},_unescapeHTML:function(_50){_50=_50.replace(/&#8217;/m,"'").replace(/&#8243;/m,"\"").replace(/&#60;/m,">").replace(/&#62;/m,"<").replace(/&#38;/m,"&");return _50;},_assertIsItem:function(_51){if(!this.isItem(_51)){throw new Error("dojox.data.AtomReadStore: Invalid item argument.");}},_assertIsAttribute:function(_52){if(typeof _52!=="string"){throw new Error("dojox.data.AtomReadStore: Invalid attribute argument.");}}});dojo.extend(dojox.data.AtomReadStore,dojo.data.util.simpleFetch);}
    9.