root / trunk / web / dojo / dojox / storage / manager.js @ 10
History | View | Annotate | Download (2.31 KB)
| 1 | 9 | andrej.cim | /*
|
|---|---|---|---|
| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
|
||
| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
|
||
| 4 | see: http://dojotoolkit.org/license for details
|
||
| 5 | */
|
||
| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.storage.manager"]){ |
||
| 9 | dojo._hasResource["dojox.storage.manager"]=true; |
||
| 10 | dojo.provide("dojox.storage.manager");
|
||
| 11 | dojox.storage.manager=new function(){ |
||
| 12 | this.currentProvider=null; |
||
| 13 | this.available=false; |
||
| 14 | this.providers=[];
|
||
| 15 | this._initialized=false; |
||
| 16 | this._onLoadListeners=[];
|
||
| 17 | this.initialize=function(){ |
||
| 18 | this.autodetect();
|
||
| 19 | }; |
||
| 20 | this.register=function(_1,_2){ |
||
| 21 | this.providers.push(_2);
|
||
| 22 | this.providers[_1]=_2;
|
||
| 23 | }; |
||
| 24 | this.setProvider=function(_3){ |
||
| 25 | }; |
||
| 26 | this.autodetect=function(){ |
||
| 27 | if(this._initialized){ |
||
| 28 | return;
|
||
| 29 | } |
||
| 30 | var _4=dojo.config["forceStorageProvider"]||false; |
||
| 31 | var _5;
|
||
| 32 | for(var i=0;i<this.providers.length;i++){ |
||
| 33 | _5=this.providers[i];
|
||
| 34 | if(_4&&_4==_5.declaredClass){
|
||
| 35 | _5.isAvailable(); |
||
| 36 | break;
|
||
| 37 | }else{
|
||
| 38 | if(!_4&&_5.isAvailable()){
|
||
| 39 | break;
|
||
| 40 | } |
||
| 41 | } |
||
| 42 | } |
||
| 43 | if(!_5){
|
||
| 44 | this._initialized=true; |
||
| 45 | this.available=false; |
||
| 46 | this.currentProvider=null; |
||
| 47 | console.warn("No storage provider found for this platform");
|
||
| 48 | this.loaded();
|
||
| 49 | return;
|
||
| 50 | } |
||
| 51 | this.currentProvider=_5;
|
||
| 52 | dojo.mixin(dojox.storage,this.currentProvider);
|
||
| 53 | dojox.storage.initialize(); |
||
| 54 | this._initialized=true; |
||
| 55 | this.available=true; |
||
| 56 | }; |
||
| 57 | this.isAvailable=function(){ |
||
| 58 | return this.available; |
||
| 59 | }; |
||
| 60 | this.addOnLoad=function(_6){ |
||
| 61 | this._onLoadListeners.push(_6);
|
||
| 62 | if(this.isInitialized()){ |
||
| 63 | this._fireLoaded();
|
||
| 64 | } |
||
| 65 | }; |
||
| 66 | this.removeOnLoad=function(_7){ |
||
| 67 | for(var i=0;i<this._onLoadListeners.length;i++){ |
||
| 68 | if(_7==this._onLoadListeners[i]){ |
||
| 69 | this._onLoadListeners=this._onLoadListeners.splice(i,1); |
||
| 70 | break;
|
||
| 71 | } |
||
| 72 | } |
||
| 73 | }; |
||
| 74 | this.isInitialized=function(){ |
||
| 75 | if(this.currentProvider!=null&&this.currentProvider.declaredClass=="dojox.storage.FlashStorageProvider"&&dojox.flash.ready==false){ |
||
| 76 | return false; |
||
| 77 | }else{
|
||
| 78 | return this._initialized; |
||
| 79 | } |
||
| 80 | }; |
||
| 81 | this.supportsProvider=function(_8){ |
||
| 82 | try{
|
||
| 83 | var _9=eval("new "+_8+"()"); |
||
| 84 | var _a=_9.isAvailable();
|
||
| 85 | if(!_a){
|
||
| 86 | return false; |
||
| 87 | } |
||
| 88 | return _a;
|
||
| 89 | } |
||
| 90 | catch(e){
|
||
| 91 | return false; |
||
| 92 | } |
||
| 93 | }; |
||
| 94 | this.getProvider=function(){ |
||
| 95 | return this.currentProvider; |
||
| 96 | }; |
||
| 97 | this.loaded=function(){ |
||
| 98 | this._fireLoaded();
|
||
| 99 | }; |
||
| 100 | this._fireLoaded=function(){ |
||
| 101 | dojo.forEach(this._onLoadListeners,function(i){ |
||
| 102 | try{
|
||
| 103 | i(); |
||
| 104 | } |
||
| 105 | catch(e){
|
||
| 106 | } |
||
| 107 | }); |
||
| 108 | }; |
||
| 109 | this.getResourceList=function(){ |
||
| 110 | var _b=[];
|
||
| 111 | dojo.forEach(dojox.storage.manager.providers,function(_c){
|
||
| 112 | _b=_b.concat(_c.getResourceList()); |
||
| 113 | }); |
||
| 114 | return _b;
|
||
| 115 | }; |
||
| 116 | }; |
||
| 117 | } |