root / trunk / web / dojo / dojox / lang / observable.js @ 11
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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.lang.observable"]){ |
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| 9 | dojo._hasResource["dojox.lang.observable"]=true; |
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| 10 | dojo.provide("dojox.lang.observable");
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| 11 | dojo.experimental("dojox.lang.observable");
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| 12 | dojox.lang.observable=function(_1,_2,_3,_4){ |
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| 13 | return dojox.lang.makeObservable(_2,_3,_4)(_1);
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| 14 | }; |
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| 15 | dojox.lang.makeObservable=function(_5,_6,_7,_8){ |
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| 16 | _8=_8||{};
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| 17 | _7=_7||function(_9,_a,_b,_c){
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| 18 | return _a[_b].apply(_9,_c);
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| 19 | }; |
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| 20 | function _d(_e,_f,i){ |
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| 21 | return function(){ |
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| 22 | return _7(_e,_f,i,arguments); |
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| 23 | }; |
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| 24 | }; |
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| 25 | if(dojox.lang.lettableWin){
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| 26 | var _10=dojox.lang.makeObservable;
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| 27 | _10.inc=(_10.inc||0)+1; |
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| 28 | var _11="gettable_"+_10.inc; |
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| 29 | dojox.lang.lettableWin[_11]=_5; |
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| 30 | var _12="settable_"+_10.inc; |
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| 31 | dojox.lang.lettableWin[_12]=_6; |
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| 32 | var _13={};
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| 33 | return function(_14){ |
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| 34 | if(_14.__observable){
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| 35 | return _14.__observable;
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| 36 | } |
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| 37 | if(_14.data__){
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| 38 | throw new Error("Can wrap an object that is already wrapped"); |
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| 39 | } |
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| 40 | var _15=[],i,l;
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| 41 | for(i in _8){ |
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| 42 | _15.push(i); |
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| 43 | } |
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| 44 | var _16={type:1,event:1}; |
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| 45 | for(i in _14){ |
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| 46 | if(i.match(/^[a-zA-Z][\w\$_]*$/)&&!(i in _8)&&!(i in _16)){ |
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| 47 | _15.push(i); |
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| 48 | } |
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| 49 | } |
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| 50 | var _17=_15.join(","); |
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| 51 | var _18,_19=_13[_17];
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| 52 | if(!_19){
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| 53 | var _1a="dj_lettable_"+(_10.inc++); |
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| 54 | var _1b=_1a+"_dj_getter"; |
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| 55 | var _1c=["Class "+_1a,"\tPublic data__"]; |
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| 56 | for(i=0,l=_15.length;i<l;i++){ |
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| 57 | _18=_15[i]; |
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| 58 | var _1d=typeof _14[_18]; |
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| 59 | if(_1d=="function"||_8[_18]){ |
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| 60 | _1c.push(" Public "+_18);
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| 61 | }else{
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| 62 | if(_1d!="object"){ |
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| 63 | _1c.push("\tPublic Property Let "+_18+"(val)","\t\tCall "+_12+"(me.data__,\""+_18+"\",val)","\tEnd Property","\tPublic Property Get "+_18,"\t\t"+_18+" = "+_11+"(me.data__,\""+_18+"\")","\tEnd Property"); |
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| 64 | } |
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| 65 | } |
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| 66 | } |
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| 67 | _1c.push("End Class");
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| 68 | _1c.push("Function "+_1b+"()","\tDim tmp","\tSet tmp = New "+_1a,"\tSet "+_1b+" = tmp","End Function"); |
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| 69 | dojox.lang.lettableWin.vbEval(_1c.join("\n"));
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| 70 | _13[_17]=_19=function(){ |
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| 71 | return dojox.lang.lettableWin.construct(_1b);
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| 72 | }; |
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| 73 | } |
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| 74 | var _1e=_19();
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| 75 | _1e.data__=_14; |
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| 76 | try{
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| 77 | _14.__observable=_1e; |
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| 78 | } |
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| 79 | catch(e){
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| 80 | } |
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| 81 | for(i=0,l=_15.length;i<l;i++){ |
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| 82 | _18=_15[i]; |
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| 83 | try{
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| 84 | var val=_14[_18];
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| 85 | } |
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| 86 | catch(e){
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| 87 | } |
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| 88 | if(typeof val=="function"||_8[_18]){ |
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| 89 | _1e[_18]=_d(_1e,_14,_18); |
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| 90 | } |
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| 91 | } |
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| 92 | return _1e;
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| 93 | }; |
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| 94 | }else{
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| 95 | return function(_1f){ |
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| 96 | if(_1f.__observable){
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| 97 | return _1f.__observable;
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| 98 | } |
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| 99 | var _20=_1f instanceof Array?[]:{}; |
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| 100 | _20.data__=_1f; |
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| 101 | for(var i in _1f){ |
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| 102 | if(i.charAt(0)!="_"){ |
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| 103 | if(typeof _1f[i]=="function"){ |
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| 104 | _20[i]=_d(_20,_1f,i); |
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| 105 | }else{
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| 106 | if(typeof _1f[i]!="object"){ |
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| 107 | (function(i){
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| 108 | _20.__defineGetter__(i,function(){
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| 109 | return _5(_1f,i);
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| 110 | }); |
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| 111 | _20.__defineSetter__(i,function(_21){
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| 112 | return _6(_1f,i,_21);
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| 113 | }); |
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| 114 | })(i); |
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| 115 | } |
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| 116 | } |
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| 117 | } |
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| 118 | } |
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| 119 | for(i in _8){ |
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| 120 | _20[i]=_d(_20,_1f,i); |
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| 121 | } |
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| 122 | _1f.__observable=_20; |
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| 123 | return _20;
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| 124 | }; |
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| 125 | } |
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| 126 | }; |
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| 127 | if(!{}.__defineGetter__){
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| 128 | if(dojo.isIE){
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| 129 | var frame;
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| 130 | if(document.body){
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| 131 | frame=document.createElement("iframe");
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| 132 | document.body.appendChild(frame); |
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| 133 | }else{
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| 134 | document.write("<iframe id='dj_vb_eval_frame'></iframe>");
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| 135 | frame=document.getElementById("dj_vb_eval_frame");
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| 136 | } |
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| 137 | frame.style.display="none";
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| 138 | var doc=frame.contentWindow.document;
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| 139 | dojox.lang.lettableWin=frame.contentWindow; |
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| 140 | doc.write("<html><head><script language=\"VBScript\" type=\"text/VBScript\">"+"Function vb_global_eval(code)"+"ExecuteGlobal(code)"+"End Function"+"</script>"+"<script type=\"text/javascript\">"+"function vbEval(code){ \n"+"return vb_global_eval(code);"+"}"+"function construct(name){ \n"+"return window[name]();"+"}"+"</script>"+"</head><body>vb-eval</body></html>"); |
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| 141 | doc.close(); |
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| 142 | }else{
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| 143 | throw new Error("This browser does not support getters and setters"); |
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| 144 | } |
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| 145 | } |
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| 146 | dojox.lang.ReadOnlyProxy=dojox.lang.makeObservable(function(obj,i){
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| 147 | return obj[i];
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| 148 | },function(obj,i,_22){
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| 149 | }); |
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| 150 | } |