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