lib/dojo/_base/Deferred.js

   1 /*
   2         Copyright (c) 2004-2016, The JS Foundation All Rights Reserved.
   3         Available via Academic Free License >= 2.1 OR the modified BSD license.
   4         see: http://dojotoolkit.org/license for details
   5 */
   6
   7 //>>built
   8 define("dojo/_base/Deferred",["./kernel","../Deferred","../promise/Promise","../errors/CancelError","../has","./lang","../when"],function(_1,_2,_3,_4,_5,_6,_7){var _8=function(){};var _9=Object.freeze||function(){};var _a=_1.Deferred=function(_b){var _c,_d,_e,_f,_10,_11,_12;var _13=(this.promise=new _3());function _14(_15){if(_d){throw new Error("This deferred has already been resolved");}_c=_15;_d=true;_16();};function _16(){var _17;while(!_17&&_12){var _18=_12;_12=_12.next;if((_17=(_18.progress==_8))){_d=false;}var _19=(_10?_18.error:_18.resolved);if(_5("config-useDeferredInstrumentation")){if(_10&&_2.instrumentRejected){_2.instrumentRejected(_c,!!_19);}}if(_19){try{var _1a=_19(_c);if(_1a&&typeof _1a.then==="function"){_1a.then(_6.hitch(_18.deferred,"resolve"),_6.hitch(_18.deferred,"reject"),_6.hitch(_18.deferred,"progress"));continue;}var _1b=_17&&_1a===undefined;if(_17&&!_1b){_10=_1a instanceof Error;}_18.deferred[_1b&&_10?"reject":"resolve"](_1b?_c:_1a);}catch(e){_18.deferred.reject(e);}}else{if(_10){_18.deferred.reject(_c);}else{_18.deferred.resolve(_c);}}}};this.isResolved=_13.isResolved=function(){return _f==0;};this.isRejected=_13.isRejected=function(){return _f==1;};this.isFulfilled=_13.isFulfilled=function(){return _f>=0;};this.isCanceled=_13.isCanceled=function(){return _e;};this.resolve=this.callback=function(_1c){this.fired=_f=0;this.results=[_1c,null];_14(_1c);};this.reject=this.errback=function(_1d){_10=true;this.fired=_f=1;if(_5("config-useDeferredInstrumentation")){if(_2.instrumentRejected){_2.instrumentRejected(_1d,!!_12);}}_14(_1d);this.results=[null,_1d];};this.progress=function(_1e){var _1f=_12;while(_1f){var _20=_1f.progress;_20&&_20(_1e);_1f=_1f.next;}};this.addCallbacks=function(_21,_22){this.then(_21,_22,_8);return this;};_13.then=this.then=function(_23,_24,_25){var _26=_25==_8?this:new _a(_13.cancel);var _27={resolved:_23,error:_24,progress:_25,deferred:_26};if(_12){_11=_11.next=_27;}else{_12=_11=_27;}if(_d){_16();}return _26.promise;};var _28=this;_13.cancel=this.cancel=function(){if(!_d){var _29=_b&&_b(_28);if(!_d){if(!(_29 instanceof Error)){_29=new _4(_29);}_29.log=false;_28.reject(_29);}}_e=true;};_9(_13);};_6.extend(_a,{addCallback:function(_2a){return this.addCallbacks(_6.hitch.apply(_1,arguments));},addErrback:function(_2b){return this.addCallbacks(null,_6.hitch.apply(_1,arguments));},addBoth:function(_2c){var _2d=_6.hitch.apply(_1,arguments);return this.addCallbacks(_2d,_2d);},fired:-1});_a.when=_1.when=_7;return _a;});