Progressbar: Add support for setOption with classes

Author: arschmitz

ui/progressbar.js

@@ -99,6 +99,29 @@ return $.widget( "ui.progressbar", {
 			Math.min( this.options.max, Math.max( this.min, newValue ) );
 	},
 
+	_elementsFromClassKey: function( classKey ) {
+		switch( classKey ) {
+			case "ui-progressbar":
+				return this.element;
+			case "ui-progressbar-value":
+				return this.valueDiv;
+			case "ui-progressbar-overlay":
+				if ( this.overlay ) {
+					return this.overlay;
+				}
+			case "ui-progressbar-indeterminate":
+				if ( !this.value ) {
+					return this.element
+				}
+			case "ui-progressbar-complete":
+				if ( this.valueDiv.hasClass( classKey ) ) {
+					return this.valueDiv;
+				}
+			default:
+				return this._superApply( arguments );
+		}
+	},
+
 	_setOptions: function( options ) {
 		// Ensure "value" option is set after other values (like max)
 		var value = options.value;