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root / trunk / web / dojo / dojox / data / FlickrRestStore.js @ 12

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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.FlickrRestStore"]){
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dojo._hasResource["dojox.data.FlickrRestStore"]=true;
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dojo.provide("dojox.data.FlickrRestStore");
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dojo.require("dojox.data.FlickrStore");
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dojo.declare("dojox.data.FlickrRestStore",dojox.data.FlickrStore,{constructor:function(_1){
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if(_1){
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if(_1.label){
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this.label=_1.label;
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}
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if(_1.apikey){
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this._apikey=_1.apikey;
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}
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}
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this._cache=[];
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this._prevRequests={};
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this._handlers={};
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this._prevRequestRanges=[];
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this._maxPhotosPerUser={};
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this._id=dojox.data.FlickrRestStore.prototype._id++;
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},_id:0,_requestCount:0,_flickrRestUrl:"http://www.flickr.com/services/rest/",_apikey:null,_storeRef:"_S",_cache:null,_prevRequests:null,_handlers:null,_sortAttributes:{"date-posted":true,"date-taken":true,"interestingness":true},_fetchItems:function(_2,_3,_4){
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var _5={};
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if(!_2.query){
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_2.query=_5={};
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}else{
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dojo.mixin(_5,_2.query);
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}
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var _6=[];
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var _7=[];
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var _8={format:"json",method:"flickr.photos.search",api_key:this._apikey,extras:"owner_name,date_upload,date_taken"};
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var _9=false;
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if(_5.userid){
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_9=true;
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_8.user_id=_2.query.userid;
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_6.push("userid"+_2.query.userid);
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}
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if(_5.groupid){
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_9=true;
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_8.group_id=_5.groupid;
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_6.push("groupid"+_5.groupid);
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}
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if(_5.apikey){
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_9=true;
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_8.api_key=_2.query.apikey;
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_7.push("api"+_2.query.apikey);
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}else{
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if(_8.api_key){
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_9=true;
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_2.query.apikey=_8.api_key;
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_7.push("api"+_8.api_key);
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}else{
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throw Error("dojox.data.FlickrRestStore: An API key must be specified.");
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}
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}
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_2._curCount=_2.count;
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if(_5.page){
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_8.page=_2.query.page;
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_7.push("page"+_8.page);
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}else{
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if(("start" in _2)&&_2.start!==null){
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if(!_2.count){
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_2.count=20;
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}
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var _a=_2.start%_2.count;
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var _b=_2.start,_c=_2.count;
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if(_a!==0){
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if(_b<_c/2){
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_c=_b+_c;
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_b=0;
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}else{
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var _d=20,_e=2;
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for(var i=_d;i>0;i--){
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if(_b%i===0&&(_b/i)>=_c){
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_e=i;
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break;
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}
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}
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_c=_b/_e;
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}
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_2._realStart=_2.start;
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_2._realCount=_2.count;
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_2._curStart=_b;
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_2._curCount=_c;
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}else{
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_2._realStart=_2._realCount=null;
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_2._curStart=_2.start;
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_2._curCount=_2.count;
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}
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_8.page=(_b/_c)+1;
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_7.push("page"+_8.page);
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}
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}
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if(_2._curCount){
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_8.per_page=_2._curCount;
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_7.push("count"+_2._curCount);
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}
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if(_5.lang){
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_8.lang=_2.query.lang;
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_6.push("lang"+_2.lang);
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}
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if(_5.setid){
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_8.method="flickr.photosets.getPhotos";
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_8.photoset_id=_2.query.setid;
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_6.push("set"+_2.query.setid);
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}
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if(_5.tags){
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if(_5.tags instanceof Array){
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_8.tags=_5.tags.join(",");
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}else{
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_8.tags=_5.tags;
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}
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_6.push("tags"+_8.tags);
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if(_5["tag_mode"]&&(_5.tag_mode.toLowerCase()==="any"||_5.tag_mode.toLowerCase()==="all")){
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_8.tag_mode=_5.tag_mode;
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}
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}
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if(_5.text){
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_8.text=_5.text;
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_6.push("text:"+_5.text);
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}
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if(_5.sort&&_5.sort.length>0){
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if(!_5.sort[0].attribute){
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_5.sort[0].attribute="date-posted";
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}
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if(this._sortAttributes[_5.sort[0].attribute]){
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if(_5.sort[0].descending){
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_8.sort=_5.sort[0].attribute+"-desc";
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}else{
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_8.sort=_5.sort[0].attribute+"-asc";
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}
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}
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}else{
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_8.sort="date-posted-asc";
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}
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_6.push("sort:"+_8.sort);
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_6=_6.join(".");
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_7=_7.length>0?"."+_7.join("."):"";
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var _f=_6+_7;
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_2={query:_5,count:_2._curCount,start:_2._curStart,_realCount:_2._realCount,_realStart:_2._realStart,onBegin:_2.onBegin,onComplete:_2.onComplete,onItem:_2.onItem};
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var _10={request:_2,fetchHandler:_3,errorHandler:_4};
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if(this._handlers[_f]){
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this._handlers[_f].push(_10);
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return;
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}
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this._handlers[_f]=[_10];
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var _11=null;
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var _12={url:this._flickrRestUrl,preventCache:this.urlPreventCache,content:_8,callbackParamName:"jsoncallback"};
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var _13=dojo.hitch(this,function(_14,_15,_16){
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var _17=_16.request.onBegin;
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_16.request.onBegin=null;
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var _18;
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var req=_16.request;
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if(("_realStart" in req)&&req._realStart!=null){
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req.start=req._realStart;
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req.count=req._realCount;
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req._realStart=req._realCount=null;
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}
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if(_17){
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var _19=null;
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if(_15){
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_19=(_15.photoset?_15.photoset:_15.photos);
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}
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if(_19&&("perpage" in _19)&&("pages" in _19)){
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if(_19.perpage*_19.pages<=_16.request.start+_16.request.count){
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_18=_16.request.start+_19.photo.length;
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}else{
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_18=_19.perpage*_19.pages;
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}
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this._maxPhotosPerUser[_6]=_18;
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_17(_18,_16.request);
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}else{
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if(this._maxPhotosPerUser[_6]){
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_17(this._maxPhotosPerUser[_6],_16.request);
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}
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}
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}
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_16.fetchHandler(_14,_16.request);
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if(_17){
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_16.request.onBegin=_17;
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}
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});
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var _1a=dojo.hitch(this,function(_1b){
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if(_1b.stat!="ok"){
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_4(null,_2);
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}else{
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var _1c=this._handlers[_f];
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if(!_1c){
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return;
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}
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this._handlers[_f]=null;
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this._prevRequests[_f]=_1b;
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var _1d=this._processFlickrData(_1b,_2,_6);
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if(!this._prevRequestRanges[_6]){
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this._prevRequestRanges[_6]=[];
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}
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this._prevRequestRanges[_6].push({start:_2.start,end:_2.start+(_1b.photoset?_1b.photoset.photo.length:_1b.photos.photo.length)});
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dojo.forEach(_1c,function(i){
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_13(_1d,_1b,i);
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});
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}
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});
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var _1e=this._prevRequests[_f];
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if(_1e){
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this._handlers[_f]=null;
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_13(this._cache[_6],_1e,_10);
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return;
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}else{
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if(this._checkPrevRanges(_6,_2.start,_2.count)){
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this._handlers[_f]=null;
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_13(this._cache[_6],null,_10);
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return;
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}
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}
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var _1f=dojo.io.script.get(_12);
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_1f.addCallback(_1a);
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_1f.addErrback(function(_20){
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dojo.disconnect(_11);
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_4(_20,_2);
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});
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},getAttributes:function(_21){
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return ["title","author","imageUrl","imageUrlSmall","imageUrlMedium","imageUrlThumb","imageUrlLarge","imageUrlOriginal","link","dateTaken","datePublished"];
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},getValues:function(_22,_23){
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this._assertIsItem(_22);
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this._assertIsAttribute(_23);
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switch(_23){
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case "title":
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return [this._unescapeHtml(_22.title)];
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case "author":
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return [_22.ownername];
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case "imageUrlSmall":
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return [_22.media.s];
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case "imageUrl":
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return [_22.media.l];
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case "imageUrlOriginal":
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return [_22.media.o];
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case "imageUrlLarge":
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return [_22.media.l];
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case "imageUrlMedium":
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return [_22.media.m];
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case "imageUrlThumb":
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return [_22.media.t];
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case "link":
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return ["http://www.flickr.com/photos/"+_22.owner+"/"+_22.id];
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case "dateTaken":
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return [_22.datetaken];
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case "datePublished":
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return [_22.datepublished];
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default:
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return undefined;
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}
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},_processFlickrData:function(_24,_25,_26){
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if(_24.items){
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return dojox.data.FlickrStore.prototype._processFlickrData.apply(this,arguments);
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}
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var _27=["http://farm",null,".static.flickr.com/",null,"/",null,"_",null];
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var _28=[];
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var _29=(_24.photoset?_24.photoset:_24.photos);
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if(_24.stat=="ok"&&_29&&_29.photo){
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_28=_29.photo;
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for(var i=0;i<_28.length;i++){
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var _2a=_28[i];
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_2a[this._storeRef]=this;
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_27[1]=_2a.farm;
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_27[3]=_2a.server;
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_27[5]=_2a.id;
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_27[7]=_2a.secret;
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var _2b=_27.join("");
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_2a.media={s:_2b+"_s.jpg",m:_2b+"_m.jpg",l:_2b+".jpg",t:_2b+"_t.jpg",o:_2b+"_o.jpg"};
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if(!_2a.owner&&_24.photoset){
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_2a.owner=_24.photoset.owner;
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}
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}
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}
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var _2c=_25.start?_25.start:0;
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var arr=this._cache[_26];
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if(!arr){
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this._cache[_26]=arr=[];
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}
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dojo.forEach(_28,function(i,idx){
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arr[idx+_2c]=i;
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});
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return arr;
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},_checkPrevRanges:function(_2d,_2e,_2f){
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var end=_2e+_2f;
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var arr=this._prevRequestRanges[_2d];
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return (!!arr)&&dojo.some(arr,function(_30){
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return ((_2e>=_30.start)&&(end<=_30.end));
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});
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}});
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}