130 lines
2.4 KiB
JavaScript
130 lines
2.4 KiB
JavaScript
/*
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Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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//>>built
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define("dojo/_base/Deferred",["./kernel","./lang"],function(_1,_2){
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var _3=function(){
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};
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var _4=Object.freeze||function(){
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};
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_1.Deferred=function(_5){
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var _6,_7,_8,_9,_a;
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var _b=(this.promise={});
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function _c(_d){
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if(_7){
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throw new Error("This deferred has already been resolved");
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}
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_6=_d;
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_7=true;
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_e();
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};
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function _e(){
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var _f;
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while(!_f&&_a){
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var _10=_a;
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_a=_a.next;
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if((_f=(_10.progress==_3))){
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_7=false;
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}
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var _11=(_8?_10.error:_10.resolved);
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if(_11){
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try{
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var _12=_11(_6);
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if(_12&&typeof _12.then==="function"){
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_12.then(_2.hitch(_10.deferred,"resolve"),_2.hitch(_10.deferred,"reject"),_2.hitch(_10.deferred,"progress"));
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continue;
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}
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var _13=_f&&_12===undefined;
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if(_f&&!_13){
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_8=_12 instanceof Error;
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}
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_10.deferred[_13&&_8?"reject":"resolve"](_13?_6:_12);
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}
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catch(e){
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_10.deferred.reject(e);
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}
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}else{
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if(_8){
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_10.deferred.reject(_6);
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}else{
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_10.deferred.resolve(_6);
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}
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}
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}
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};
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this.resolve=this.callback=function(_14){
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this.fired=0;
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this.results=[_14,null];
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_c(_14);
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};
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this.reject=this.errback=function(_15){
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_8=true;
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this.fired=1;
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_c(_15);
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this.results=[null,_15];
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if(!_15||_15.log!==false){
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(_1.config.deferredOnError||function(x){
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console.error(x);
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})(_15);
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}
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};
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this.progress=function(_16){
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var _17=_a;
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while(_17){
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var _18=_17.progress;
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_18&&_18(_16);
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_17=_17.next;
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}
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};
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this.addCallbacks=function(_19,_1a){
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this.then(_19,_1a,_3);
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return this;
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};
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_b.then=this.then=function(_1b,_1c,_1d){
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var _1e=_1d==_3?this:new _1.Deferred(_b.cancel);
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var _1f={resolved:_1b,error:_1c,progress:_1d,deferred:_1e};
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if(_a){
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_9=_9.next=_1f;
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}else{
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_a=_9=_1f;
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}
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if(_7){
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_e();
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}
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return _1e.promise;
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};
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var _20=this;
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_b.cancel=this.cancel=function(){
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if(!_7){
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var _21=_5&&_5(_20);
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if(!_7){
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if(!(_21 instanceof Error)){
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_21=new Error(_21);
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}
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_21.log=false;
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_20.reject(_21);
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}
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}
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};
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_4(_b);
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};
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_2.extend(_1.Deferred,{addCallback:function(_22){
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return this.addCallbacks(_2.hitch.apply(_1,arguments));
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},addErrback:function(_23){
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return this.addCallbacks(null,_2.hitch.apply(_1,arguments));
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},addBoth:function(_24){
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var _25=_2.hitch.apply(_1,arguments);
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return this.addCallbacks(_25,_25);
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},fired:-1});
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_1.Deferred.when=_1.when=function(_26,_27,_28,_29){
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if(_26&&typeof _26.then==="function"){
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return _26.then(_27,_28,_29);
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}
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return _27?_27(_26):_26;
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};
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return _1.Deferred;
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});
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