test/promises_aplus_adapters/when.cjs

   1 "use strict";
   2
   3 const { JSDOM } = require( "jsdom" );
   4
   5 const { window } = new JSDOM( "" );
   6
   7 const jQuery = require( "../../" )( window );
   8
   9 module.exports.deferred = () => {
  10         let adopted, promised;
  11
  12         return {
  13                 resolve: function() {
  14                         if ( !adopted ) {
  15                                 adopted = jQuery.when.apply( jQuery, arguments );
  16                                 if ( promised ) {
  17                                         adopted.then( promised.resolve, promised.reject );
  18                                 }
  19                         }
  20                         return adopted;
  21                 },
  22                 reject: function( value ) {
  23                         if ( !adopted ) {
  24                                 adopted = jQuery.when( jQuery.Deferred().reject( value ) );
  25                                 if ( promised ) {
  26                                         adopted.then( promised.resolve, promised.reject );
  27                                 }
  28                         }
  29                         return adopted;
  30                 },
  31
  32                 // A manually-constructed thenable that works even if calls precede resolve/reject
  33                 promise: {
  34                         then: function() {
  35                                 if ( !adopted ) {
  36                                         if ( !promised ) {
  37                                                 promised = jQuery.Deferred();
  38                                         }
  39                                         return promised.then.apply( promised, arguments );
  40                                 }
  41                                 return adopted.then.apply( adopted, arguments );
  42                         }
  43                 }
  44         };
  45 };