131 lines
2.4 KiB
JavaScript
131 lines
2.4 KiB
JavaScript
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/*
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Copyright (c) 2004-2010, 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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if(!dojo._hasResource["dojo._base.Deferred"]){
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dojo._hasResource["dojo._base.Deferred"]=true;
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dojo.provide("dojo._base.Deferred");
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dojo.require("dojo._base.lang");
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(function(){
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var _1=function(){
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};
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var _2=Object.freeze||function(){
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};
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dojo.Deferred=function(_3){
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var _4,_5,_6,_7,_8;
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var _9=this.promise={};
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function _a(_b){
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if(_5){
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throw new Error("This deferred has already been resolved");
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}
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_4=_b;
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_5=true;
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_c();
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};
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function _c(){
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var _d;
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while(!_d&&_8){
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var _e=_8;
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_8=_8.next;
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if(_d=(_e.progress==_1)){
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_5=false;
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}
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var _f=(_6?_e.error:_e.resolved);
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if(_f){
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try{
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var _10=_f(_4);
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if(_10&&typeof _10.then==="function"){
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_10.then(dojo.hitch(_e.deferred,"resolve"),dojo.hitch(_e.deferred,"reject"));
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continue;
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}
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var _11=_d&&_10===undefined;
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_e.deferred[_11&&_6?"reject":"resolve"](_11?_4:_10);
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}
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catch(e){
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_e.deferred.reject(e);
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}
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}else{
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if(_6){
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_e.deferred.reject(_4);
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}else{
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_e.deferred.resolve(_4);
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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(_12){
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this.fired=0;
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this.results=[_12,null];
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_a(_12);
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};
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this.reject=this.errback=function(_13){
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_6=true;
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this.fired=1;
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_a(_13);
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this.results=[null,_13];
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if(!_13||_13.log!==false){
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(dojo.config.deferredOnError||function(x){
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console.error(x);
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})(_13);
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}
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};
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this.progress=function(_14){
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var _15=_8;
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while(_15){
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var _16=_15.progress;
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_16&&_16(_14);
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_15=_15.next;
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}
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};
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this.addCallbacks=function(_17,_18){
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this.then(_17,_18,_1);
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return this;
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};
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this.then=_9.then=function(_19,_1a,_1b){
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var _1c=_1b==_1?this:new dojo.Deferred(_9.cancel);
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var _1d={resolved:_19,error:_1a,progress:_1b,deferred:_1c};
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if(_8){
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_7=_7.next=_1d;
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}else{
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_8=_7=_1d;
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}
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if(_5){
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_c();
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}
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return _1c.promise;
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};
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var _1e=this;
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this.cancel=_9.cancel=function(){
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if(!_5){
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var _1f=_3&&_3(_1e);
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if(!_5){
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if(!(_1f instanceof Error)){
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_1f=new Error(_1f);
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}
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_1f.log=false;
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_1e.reject(_1f);
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}
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}
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};
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_2(_9);
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};
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dojo.extend(dojo.Deferred,{addCallback:function(_20){
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return this.addCallbacks(dojo.hitch.apply(dojo,arguments));
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},addErrback:function(_21){
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return this.addCallbacks(null,dojo.hitch.apply(dojo,arguments));
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},addBoth:function(_22){
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var _23=dojo.hitch.apply(dojo,arguments);
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return this.addCallbacks(_23,_23);
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},fired:-1});
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})();
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dojo.when=function(_24,_25,_26,_27){
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if(_24&&typeof _24.then==="function"){
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return _24.then(_25,_26,_27);
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}
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return _25(_24);
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};
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}
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