root / trunk / web / dojo / dojox / lang / async.js @ 9
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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.async"]){ |
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| 9 | dojo._hasResource["dojox.lang.async"]=true; |
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| 10 | dojo.provide("dojox.lang.async");
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| 11 | (function(){
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| 12 | var d=dojo,_1=d.Deferred,_2=d.forEach,_3=d.some,_4=dojox.lang.async,_5=Array.prototype.slice,_6=Object.prototype.toString;
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| 13 | _4.seq=function(x){ |
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| 14 | var fs=_6.call(x)=="[object Array]"?x:arguments; |
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| 15 | return function(_7){ |
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| 16 | var x=new _1(); |
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| 17 | _2(fs,function(f){
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| 18 | x.addCallback(f); |
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| 19 | }); |
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| 20 | x.callback(_7); |
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| 21 | return x;
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| 22 | }; |
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| 23 | }; |
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| 24 | _4.par=function(x){ |
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| 25 | var fs=_6.call(x)=="[object Array]"?x:arguments; |
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| 26 | return function(_8){ |
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| 27 | var _9=new Array(fs.length),_a=function(){ |
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| 28 | _2(_9,function(v){
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| 29 | if(v instanceof _1&&v.fired<0){ |
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| 30 | v.cancel(); |
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| 31 | } |
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| 32 | }); |
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| 33 | },x=new _1(_a),_b=fs.length;
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| 34 | _2(fs,function(f,i){
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| 35 | var x;
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| 36 | try{
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| 37 | x=f(_8); |
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| 38 | } |
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| 39 | catch(e){
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| 40 | x=e; |
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| 41 | } |
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| 42 | _9[i]=x; |
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| 43 | }); |
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| 44 | var _c=_3(_9,function(v){ |
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| 45 | if(v instanceof Error){ |
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| 46 | _a(); |
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| 47 | x.errback(v); |
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| 48 | return true; |
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| 49 | } |
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| 50 | return false; |
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| 51 | }); |
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| 52 | if(!_c){
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| 53 | _2(_9,function(v,i){
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| 54 | if(v instanceof _1){ |
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| 55 | v.addCallbacks(function(v){
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| 56 | _9[i]=v; |
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| 57 | if(!--_b){
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| 58 | x.callback(_9); |
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| 59 | } |
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| 60 | },function(v){
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| 61 | _a(); |
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| 62 | x.errback(v); |
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| 63 | }); |
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| 64 | }else{
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| 65 | --_b; |
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| 66 | } |
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| 67 | }); |
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| 68 | } |
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| 69 | if(!_b){
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| 70 | x.callback(_9); |
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| 71 | } |
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| 72 | return x;
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| 73 | }; |
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| 74 | }; |
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| 75 | _4.any=function(x){ |
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| 76 | var fs=_6.call(x)=="[object Array]"?x:arguments; |
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| 77 | return function(_d){ |
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| 78 | var _e=new Array(fs.length),_f=true; |
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| 79 | cancel=function(_10){ |
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| 80 | _2(_e,function(v,i){
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| 81 | if(i!=_10&&v instanceof _1&&v.fired<0){ |
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| 82 | v.cancel(); |
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| 83 | } |
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| 84 | }); |
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| 85 | },x=new _1(cancel);
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| 86 | _2(fs,function(f,i){
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| 87 | var x;
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| 88 | try{
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| 89 | x=f(_d); |
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| 90 | } |
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| 91 | catch(e){
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| 92 | x=e; |
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| 93 | } |
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| 94 | _e[i]=x; |
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| 95 | }); |
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| 96 | var _11=_3(_e,function(v,i){ |
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| 97 | if(!(v instanceof _1)){ |
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| 98 | cancel(i); |
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| 99 | x.callback(v); |
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| 100 | return true; |
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| 101 | } |
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| 102 | return false; |
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| 103 | }); |
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| 104 | if(!_11){
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| 105 | _2(_e,function(v,i){
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| 106 | v.addBoth(function(v){
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| 107 | if(_f){
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| 108 | _f=false;
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| 109 | cancel(i); |
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| 110 | x.callback(v); |
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| 111 | } |
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| 112 | }); |
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| 113 | }); |
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| 114 | } |
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| 115 | return x;
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| 116 | }; |
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| 117 | }; |
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| 118 | _4.select=function(_12,x){ |
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| 119 | var fs=_6.call(x)=="[object Array]"?x:_5.call(arguments,1); |
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| 120 | return function(_13){ |
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| 121 | return new _1().addCallback(_12).addCallback(function(v){ |
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| 122 | if(typeof v=="number"&&v>=0&&v<fs.length){ |
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| 123 | return fs[v](_13);
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| 124 | }else{
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| 125 | return new Error("async.select: out of range"); |
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| 126 | } |
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| 127 | }).callback(_13); |
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| 128 | }; |
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| 129 | }; |
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| 130 | _4.ifThen=function(_14,_15,_16){ |
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| 131 | return function(_17){ |
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| 132 | return new _1().addCallback(_14).addCallback(function(v){ |
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| 133 | return (v?_15:_16)(_17);
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| 134 | }).callback(_17); |
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| 135 | }; |
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| 136 | }; |
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| 137 | _4.loop=function(_18,_19){ |
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| 138 | return function(_1a){ |
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| 139 | var x,y=new _1(function(){ |
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| 140 | x.cancel(); |
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| 141 | }); |
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| 142 | function _1b(v){ |
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| 143 | y.errback(v); |
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| 144 | }; |
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| 145 | function _1c(v){ |
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| 146 | if(v){
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| 147 | x.addCallback(_19).addCallback(_1d); |
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| 148 | }else{
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| 149 | y.callback(v); |
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| 150 | } |
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| 151 | return v;
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| 152 | }; |
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| 153 | function _1d(_1e){ |
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| 154 | x=new _1().addCallback(_18).addCallback(_1c).addErrback(_1b);
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| 155 | x.callback(_1e); |
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| 156 | }; |
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| 157 | _1d(_1a); |
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| 158 | return y;
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| 159 | }; |
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| 160 | }; |
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| 161 | })(); |
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| 162 | } |