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Theme Customizer: Make wp.customize.Values.when return a jQuery.Deferred.promise() object, to add additional flexibility. see #19910. 

git-svn-id: http://core.svn.wordpress.org/trunk@20797 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
koopersmith 2012-05-15 22:01:36 +00:00
parent ed3c93ae6a
commit f2ecf78e88
1 changed files with 18 additions and 8 deletions
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26
wp-includes/js/customize-base.dev.js
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@ -331,36 +331,46 @@ if ( typeof wp === 'undefined' )
/**
* Runs a callback once all requested values exist.
*
* when( ids*, callback );
* when( ids*, [callback] );
*
* For example:
* when( id1, id2, id3, function( value1, value2, value3 ) {} );
*
* @returns $.Deferred.promise();
*/
when: function() {
var self = this,
ids = slice.call( arguments ),
callback = ids.pop();
ids = slice.call( arguments ),
dfd = $.Deferred();
// If the last argument is a callback, bind it to .done()
if ( $.isFunction( ids[ ids.length - 1 ] ) )
dfd.done( ids.pop() );
$.when.apply( $, $.map( ids, function( id ) {
if ( self.has( id ) )
return;
return self._deferreds[ id ] || ( self._deferreds[ id ] = $.Deferred() );
return self._deferreds[ id ] = self._deferreds[ id ] || $.Deferred();
})).done( function() {
var values = $.map( ids, function( id ) {
return self( id );
});
// If a value is missing, we've used at least one expired deferred.
// Call Values.when again to update our master deferred.
// Call Values.when again to generate a new deferred.
if ( values.length !== ids.length ) {
ids.push( callback );
self.when.apply( self, ids );
// ids.push( callback );
self.when.apply( self, ids ).done( function() {
dfd.resolveWith( self, values );
});
return;
}
callback.apply( self, values );
dfd.resolveWith( self, values );
});
return dfd.promise();
}
});