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root / trunk / web / dojo / dojox / rpc / OfflineRest.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.rpc.OfflineRest"]){
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dojo._hasResource["dojox.rpc.OfflineRest"]=true;
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dojo.provide("dojox.rpc.OfflineRest");
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dojo.require("dojox.data.ClientFilter");
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dojo.require("dojox.rpc.Rest");
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dojo.require("dojox.storage");
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(function(){
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var _1=dojox.rpc.Rest;
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var _2="dojox_rpc_OfflineRest";
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var _3;
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var _4=_1._index;
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dojox.storage.manager.addOnLoad(function(){
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_3=dojox.storage.manager.available;
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for(var i in _4){
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_5(_4[i],i);
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}
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});
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var _6;
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function _7(_8){
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return _8.replace(/[^0-9A-Za-z_]/g,"_");
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};
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function _5(_9,id){
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if(_3&&!_6&&(id||(_9&&_9.__id))){
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dojox.storage.put(_7(id||_9.__id),typeof _9=="object"?dojox.json.ref.toJson(_9):_9,function(){
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},_2);
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}
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};
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function _a(_b){
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return _b instanceof Error&&(_b.status==503||_b.status>12000||!_b.status);
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};
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function _c(){
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if(_3){
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var _d=dojox.storage.get("dirty",_2);
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if(_d){
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for(var _e in _d){
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_f(_e,_d);
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}
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}
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}
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};
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var _10;
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function _11(){
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_10.sendChanges();
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_10.downloadChanges();
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};
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var _12=setInterval(_11,15000);
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dojo.connect(document,"ononline",_11);
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_10=dojox.rpc.OfflineRest={turnOffAutoSync:function(){
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clearInterval(_12);
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},sync:_11,sendChanges:_c,downloadChanges:function(){
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},addStore:function(_13,_14){
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_10.stores.push(_13);
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_13.fetch({queryOptions:{cache:true},query:_14,onComplete:function(_15,_16){
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_13._localBaseResults=_15;
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_13._localBaseFetch=_16;
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}});
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}};
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_10.stores=[];
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var _17=_1._get;
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_1._get=function(_18,id){
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try{
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_c();
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if(window.navigator&&navigator.onLine===false){
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throw new Error();
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}
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var dfd=_17(_18,id);
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}
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catch(e){
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dfd=new dojo.Deferred();
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dfd.errback(e);
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}
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var _19=dojox.rpc._sync;
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dfd.addCallback(function(_1a){
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_5(_1a,_18._getRequest(id).url);
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return _1a;
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});
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dfd.addErrback(function(_1b){
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if(_3){
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if(_a(_1b)){
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var _1c={};
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var _1d=function(id,_1e){
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if(_1c[id]){
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return _1e;
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}
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var _1f=dojo.fromJson(dojox.storage.get(_7(id),_2))||_1e;
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_1c[id]=_1f;
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for(var i in _1f){
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var val=_1f[i];
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id=val&&val.$ref;
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if(id){
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if(id.substring&&id.substring(0,4)=="cid:"){
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id=id.substring(4);
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}
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_1f[i]=_1d(id,val);
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}
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}
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if(_1f instanceof Array){
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for(i=0;i<_1f.length;i++){
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if(_1f[i]===undefined){
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_1f.splice(i--,1);
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}
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}
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}
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return _1f;
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};
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_6=true;
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var _20=_1d(_18._getRequest(id).url);
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if(!_20){
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return _1b;
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}
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_6=false;
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return _20;
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}else{
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return _1b;
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}
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}else{
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if(_19){
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return new Error("Storage manager not loaded, can not continue");
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}
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dfd=new dojo.Deferred();
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dfd.addCallback(arguments.callee);
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dojox.storage.manager.addOnLoad(function(){
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dfd.callback();
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});
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return dfd;
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}
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});
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return dfd;
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};
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function _21(_22,_23,_24,_25,_26){
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if(_22=="delete"){
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dojox.storage.remove(_7(_23),_2);
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}else{
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dojox.storage.put(_7(_24),_25,function(){
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},_2);
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}
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var _27=_26&&_26._store;
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if(_27){
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_27.updateResultSet(_27._localBaseResults,_27._localBaseFetch);
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dojox.storage.put(_7(_26._getRequest(_27._localBaseFetch.query).url),dojox.json.ref.toJson(_27._localBaseResults),function(){
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},_2);
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}
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};
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dojo.addOnLoad(function(){
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dojo.connect(dojox.data,"restListener",function(_28){
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var _29=_28.channel;
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var _2a=_28.event.toLowerCase();
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var _2b=dojox.rpc.JsonRest&&dojox.rpc.JsonRest.getServiceAndId(_29).service;
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_21(_2a,_29,_2a=="post"?_29+_28.result.id:_29,dojo.toJson(_28.result),_2b);
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});
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});
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var _2c=_1._change;
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_1._change=function(_2d,_2e,id,_2f){
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if(!_3){
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return _2c.apply(this,arguments);
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}
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var _30=_2e._getRequest(id).url;
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_21(_2d,_30,dojox.rpc.JsonRest._contentId,_2f,_2e);
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var _31=dojox.storage.get("dirty",_2)||{};
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if(_2d=="put"||_2d=="delete"){
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var _32=_30;
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}else{
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_32=0;
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for(var i in _31){
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if(!isNaN(parseInt(i))){
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_32=i;
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}
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}
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_32++;
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}
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_31[_32]={method:_2d,id:_30,content:_2f};
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return _f(_32,_31);
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};
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function _f(_33,_34){
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var _35=_34[_33];
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var _36=dojox.rpc.JsonRest.getServiceAndId(_35.id);
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var _37=_2c(_35.method,_36.service,_36.id,_35.content);
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_34[_33]=_35;
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dojox.storage.put("dirty",_34,function(){
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},_2);
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_37.addBoth(function(_38){
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if(_a(_38)){
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return null;
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}
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var _39=dojox.storage.get("dirty",_2)||{};
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delete _39[_33];
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dojox.storage.put("dirty",_39,function(){
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},_2);
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return _38;
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});
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return _37;
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};
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dojo.connect(_4,"onLoad",_5);
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dojo.connect(_4,"onUpdate",_5);
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})();
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}