📄 offlinerest.js
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/* Copyright (c) 2004-2008, The Dojo Foundation All Rights Reserved. Available via Academic Free License >= 2.1 OR the modified BSD license. see: http://dojotoolkit.org/license for details*/if(!dojo._hasResource["dojox.rpc.OfflineRest"]){dojo._hasResource["dojox.rpc.OfflineRest"]=true;dojo.provide("dojox.rpc.OfflineRest");dojo.require("dojox.data.ClientFilter");dojo.require("dojox.rpc.Rest");dojo.require("dojox.storage");(function(){var _1=dojox.rpc.Rest;var _2="dojox_rpc_OfflineRest";var _3;var _4=_1._index;dojox.storage.manager.addOnLoad(function(){_3=dojox.storage.manager.available;for(var i in _4){saveObject(_4[i],i);}});var _6;function getStorageKey(_7){return _7.replace(/[^0-9A-Za-z_]/g,"_");};function saveObject(_8,id){if(_3&&!_6&&(id||(_8&&_8.__id))){dojox.storage.put(getStorageKey(id||_8.__id),typeof _8=="object"?dojox.json.ref.toJson(_8):_8,function(){},_2);}};function isNetworkError(_a){return _a instanceof Error&&(_a.status==503||_a.status>12000||!_a.status);};function sendChanges(){if(_3){var _b=dojox.storage.get("dirty",_2);if(_b){for(var _c in _b){commitDirty(_c,_b);}}}};var _d;function sync(){_d.sendChanges();_d.downloadChanges();};var _e=setInterval(sync,15000);dojo.connect(document,"ononline",sync);_d=dojox.rpc.OfflineRest={turnOffAutoSync:function(){clearInterval(_e);},sync:sync,sendChanges:sendChanges,downloadChanges:function(){},addStore:function(_f,_10){_d.stores.push(_f);_f.fetch({queryOptions:{cache:true},query:_10,onComplete:function(_11,_12){_f._localBaseResults=_11;_f._localBaseFetch=_12;}});}};_d.stores=[];var _13=_1._get;_1._get=function(_14,id){try{sendChanges();if(window.navigator&&navigator.onLine===false){throw new Error();}var dfd=_13(_14,id);}catch(e){dfd=new dojo.Deferred();dfd.errback(e);}var _17=dojox.rpc._sync;dfd.addCallback(function(_18){saveObject(_18,_14.servicePath+id);return _18;});dfd.addErrback(function(_19){if(_3){if(isNetworkError(_19)){var _1a={};var _1b=function(id,_1d){if(_1a[id]){return _1d;}var _1e=dojo.fromJson(dojox.storage.get(getStorageKey(id),_2))||_1d;_1a[id]=_1e;for(var i in _1e){var val=_1e[i];if(val&&val.$ref){_1e[i]=_1b(val.$ref,val);}}if(_1e instanceof Array){for(i=0;i<_1e.length;i++){if(_1e[i]===undefined){_1e.splice(i--,1);}}}return _1e;};_6=true;var _21=_1b(_14.servicePath+id);if(!_21){return _19;}_6=false;return _21;}else{return _19;}}else{if(_17){return new Error("Storage manager not loaded, can not continue");}dfd=new dojo.Deferred();dfd.addCallback(arguments.callee);dojox.storage.manager.addOnLoad(function(){dfd.callback();});return dfd;}});return dfd;};var _22=_1._change;_1._change=function(_23,_24,id,_26){if(!_3){return _22.apply(this,arguments);}var _27=_24.servicePath+id;if(_23=="delete"){dojox.storage.remove(getStorageKey(_27),_2);}else{dojox.storage.put(getStorageKey(dojox.rpc.JsonRest._contentId),_26,function(){},_2);}var _28=_24._store;if(_28){_28.updateResultSet(_28._localBaseResults,_28._localBaseFetch);dojox.storage.put(getStorageKey(_24.servicePath+_28._localBaseFetch.query),dojox.json.ref.toJson(_28._localBaseResults),function(){},_2);}var _29=dojox.storage.get("dirty",_2)||{};if(_23=="put"||_23=="delete"){var _2a=_27;}else{_2a=0;for(var i in _29){if(!isNaN(parseInt(i))){_2a=i;}}_2a++;}_29[_2a]={method:_23,id:_27,content:_26};return commitDirty(_2a,_29);};function commitDirty(_2c,_2d){var _2e=_2d[_2c];var _2f=dojox.rpc.JsonRest.getServiceAndId(_2e.id);var _30=_22(_2e.method,_2f.service,_2f.id,_2e.content);_2d[_2c]=_2e;dojox.storage.put("dirty",_2d,function(){},_2);_30.addBoth(function(_31){if(isNetworkError(_31)){return null;}var _32=dojox.storage.get("dirty",_2)||{};delete _32[_2c];dojox.storage.put("dirty",_32,function(){},_2);return _31;});return _30;};dojo.connect(_4,"onLoad",saveObject);dojo.connect(_4,"onUpdate",saveObject);})();}
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