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root / trunk / web / dojo / dojox / data / GoogleSearchStore.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.GoogleSearchStore"]){
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dojo._hasResource["dojox.data.GoogleSearchStore"]=true;
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dojo.provide("dojox.data.GoogleSearchStore");
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dojo.provide("dojox.data.GoogleWebSearchStore");
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dojo.provide("dojox.data.GoogleBlogSearchStore");
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dojo.provide("dojox.data.GoogleLocalSearchStore");
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dojo.provide("dojox.data.GoogleVideoSearchStore");
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dojo.provide("dojox.data.GoogleNewsSearchStore");
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dojo.provide("dojox.data.GoogleBookSearchStore");
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dojo.provide("dojox.data.GoogleImageSearchStore");
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dojo.require("dojo.io.script");
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dojo.experimental("dojox.data.GoogleSearchStore");
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dojo.declare("dojox.data.GoogleSearchStore",null,{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.key){
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this._key=_1.key;
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}
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if(_1.lang){
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this._lang=_1.lang;
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}
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if("urlPreventCache" in _1){
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this.urlPreventCache=_1.urlPreventCache?true:false;
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}
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}
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this._id=dojox.data.GoogleSearchStore.prototype._id++;
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},_id:0,_requestCount:0,_googleUrl:"http://ajax.googleapis.com/ajax/services/search/",_storeRef:"_S",_attributes:["unescapedUrl","url","visibleUrl","cacheUrl","title","titleNoFormatting","content","estimatedResultCount"],_aggregatedAttributes:{estimatedResultCount:"cursor.estimatedResultCount"},label:"titleNoFormatting",_type:"web",urlPreventCache:true,_queryAttrs:{text:"q"},_assertIsItem:function(_2){
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if(!this.isItem(_2)){
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throw new Error("dojox.data.GoogleSearchStore: a function was passed an item argument that was not an item");
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}
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},_assertIsAttribute:function(_3){
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if(typeof _3!=="string"){
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throw new Error("dojox.data.GoogleSearchStore: a function was passed an attribute argument that was not an attribute name string");
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}
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},getFeatures:function(){
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return {"dojo.data.api.Read":true};
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},getValue:function(_4,_5,_6){
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var _7=this.getValues(_4,_5);
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if(_7&&_7.length>0){
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return _7[0];
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}
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return _6;
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},getAttributes:function(_8){
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return this._attributes;
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},hasAttribute:function(_9,_a){
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if(this.getValue(_9,_a)){
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return true;
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}
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return false;
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},isItemLoaded:function(_b){
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return this.isItem(_b);
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},loadItem:function(_c){
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},getLabel:function(_d){
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return this.getValue(_d,this.label);
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},getLabelAttributes:function(_e){
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return [this.label];
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},containsValue:function(_f,_10,_11){
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var _12=this.getValues(_f,_10);
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for(var i=0;i<_12.length;i++){
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if(_12[i]===_11){
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return true;
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}
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}
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return false;
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},getValues:function(_13,_14){
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this._assertIsItem(_13);
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this._assertIsAttribute(_14);
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var val=_13[_14];
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if(dojo.isArray(val)){
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return val;
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}else{
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if(val!==undefined){
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return [val];
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}else{
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return [];
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}
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}
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},isItem:function(_15){
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if(_15&&_15[this._storeRef]===this){
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return true;
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}
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return false;
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},close:function(_16){
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},_format:function(_17,_18){
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return _17;
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},fetch:function(_19){
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_19=_19||{};
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var _1a=_19.scope||dojo.global;
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if(!_19.query){
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if(_19.onError){
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_19.onError.call(_1a,new Error(this.declaredClass+": A query must be specified."));
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return;
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}
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}
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var _1b={};
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for(var _1c in this._queryAttrs){
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_1b[_1c]=_19.query[_1c];
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}
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_19={query:_1b,onComplete:_19.onComplete,onError:_19.onError,onItem:_19.onItem,onBegin:_19.onBegin,start:_19.start,count:_19.count};
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var _1d=8;
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var _1e="GoogleSearchStoreCallback_"+this._id+"_"+(++this._requestCount);
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var _1f=this._createContent(_1b,_1e,_19);
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var _20;
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if(typeof (_19.start)==="undefined"||_19.start===null){
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_19.start=0;
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}
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if(!_19.count){
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_19.count=_1d;
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}
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_20={start:_19.start-_19.start%_1d};
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var _21=this;
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var _22=this._googleUrl+this._type;
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var _23={url:_22,preventCache:this.urlPreventCache,content:_1f};
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var _24=[];
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var _25=0;
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var _26=false;
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var _27=_19.start-1;
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var _28=0;
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var _29=[];
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function _2a(req){
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_28++;
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_23.content.context=_23.content.start=req.start;
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var _2b=dojo.io.script.get(_23);
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_29.push(_2b.ioArgs.id);
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_2b.addErrback(function(_2c){
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if(_19.onError){
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_19.onError.call(_1a,_2c,_19);
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}
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});
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};
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var _2d=function(_2e,_2f){
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if(_29.length>0){
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dojo.query("#"+_29.splice(0,1)).forEach(dojo.destroy);
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}
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if(_26){
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return;
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}
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var _30=_21._getItems(_2f);
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var _31=_2f?_2f["cursor"]:null;
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if(_30){
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for(var i=0;i<_30.length&&i+_2e<_19.count+_19.start;i++){
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_21._processItem(_30[i],_2f);
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_24[i+_2e]=_30[i];
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}
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_25++;
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if(_25==1){
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var _32=_31?_31.pages:null;
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var _33=_32?Number(_32[_32.length-1].start):0;
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if(_19.onBegin){
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var est=_31?_31.estimatedResultCount:_30.length;
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var _34=est?Math.min(est,_33+_30.length):_33+_30.length;
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_19.onBegin.call(_1a,_34,_19);
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}
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var _35=(_19.start-_19.start%_1d)+_1d;
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var _36=1;
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while(_32){
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if(!_32[_36]||Number(_32[_36].start)>=_19.start+_19.count){
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break;
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}
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if(Number(_32[_36].start)>=_35){
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_2a({start:_32[_36].start});
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}
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_36++;
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}
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}
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if(_19.onItem&&_24[_27+1]){
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do{
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_27++;
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_19.onItem.call(_1a,_24[_27],_19);
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}while(_24[_27+1]&&_27<_19.start+_19.count);
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}
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if(_25==_28){
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_26=true;
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dojo.global[_1e]=null;
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if(_19.onItem){
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_19.onComplete.call(_1a,null,_19);
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}else{
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_24=_24.slice(_19.start,_19.start+_19.count);
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_19.onComplete.call(_1a,_24,_19);
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}
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}
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}
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};
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var _37=[];
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var _38=_20.start-1;
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dojo.global[_1e]=function(_39,_3a,_3b,_3c){
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try{
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if(_3b!=200){
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if(_19.onError){
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_19.onError.call(_1a,new Error("Response from Google was: "+_3b),_19);
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}
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dojo.global[_1e]=function(){
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};
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return;
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}
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if(_39==_38+1){
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_2d(Number(_39),_3a);
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_38+=_1d;
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if(_37.length>0){
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_37.sort(_21._getSort());
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while(_37.length>0&&_37[0].start==_38+1){
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_2d(Number(_37[0].start),_37[0].data);
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_37.splice(0,1);
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_38+=_1d;
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}
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}
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}else{
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_37.push({start:_39,data:_3a});
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}
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}
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catch(e){
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_19.onError.call(_1a,e,_19);
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}
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};
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_2a(_20);
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},_getSort:function(){
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return function(a,b){
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if(a.start<b.start){
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return -1;
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}
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if(b.start<a.start){
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return 1;
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}
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return 0;
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};
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},_processItem:function(_3d,_3e){
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_3d[this._storeRef]=this;
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for(var _3f in this._aggregatedAttributes){
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_3d[_3f]=dojo.getObject(this._aggregatedAttributes[_3f],false,_3e);
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}
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},_getItems:function(_40){
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return _40["results"]||_40;
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},_createContent:function(_41,_42,_43){
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var _44={v:"1.0",rsz:"large",callback:_42,key:this._key,hl:this._lang};
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for(var _45 in this._queryAttrs){
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_44[this._queryAttrs[_45]]=_41[_45];
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}
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return _44;
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}});
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dojo.declare("dojox.data.GoogleWebSearchStore",dojox.data.GoogleSearchStore,{});
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dojo.declare("dojox.data.GoogleBlogSearchStore",dojox.data.GoogleSearchStore,{_type:"blogs",_attributes:["blogUrl","postUrl","title","titleNoFormatting","content","author","publishedDate"],_aggregatedAttributes:{}});
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dojo.declare("dojox.data.GoogleLocalSearchStore",dojox.data.GoogleSearchStore,{_type:"local",_attributes:["title","titleNoFormatting","url","lat","lng","streetAddress","city","region","country","phoneNumbers","ddUrl","ddUrlToHere","ddUrlFromHere","staticMapUrl","viewport"],_aggregatedAttributes:{viewport:"viewport"},_queryAttrs:{text:"q",centerLatLong:"sll",searchSpan:"sspn"}});
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dojo.declare("dojox.data.GoogleVideoSearchStore",dojox.data.GoogleSearchStore,{_type:"video",_attributes:["title","titleNoFormatting","content","url","published","publisher","duration","tbWidth","tbHeight","tbUrl","playUrl"],_aggregatedAttributes:{}});
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dojo.declare("dojox.data.GoogleNewsSearchStore",dojox.data.GoogleSearchStore,{_type:"news",_attributes:["title","titleNoFormatting","content","url","unescapedUrl","publisher","clusterUrl","location","publishedDate","relatedStories"],_aggregatedAttributes:{}});
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dojo.declare("dojox.data.GoogleBookSearchStore",dojox.data.GoogleSearchStore,{_type:"books",_attributes:["title","titleNoFormatting","authors","url","unescapedUrl","bookId","pageCount","publishedYear"],_aggregatedAttributes:{}});
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dojo.declare("dojox.data.GoogleImageSearchStore",dojox.data.GoogleSearchStore,{_type:"images",_attributes:["title","titleNoFormatting","visibleUrl","url","unescapedUrl","originalContextUrl","width","height","tbWidth","tbHeight","tbUrl","content","contentNoFormatting"],_aggregatedAttributes:{}});
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}