Checkbox: Update visual test to current jQuery version; update impl to set version and options defaults, and to set aria-checked attribute to correct value.

Author: jzaefferer

tests/visual/checkbox/checkbox.html

@@ -5,7 +5,7 @@
 	<title>Checkbox Visual Test : Default</title>
 	<link rel="stylesheet" href="../visual.css" type="text/css" />
 	<link rel="stylesheet" href="../../../themes/base/jquery.ui.all.css" type="text/css" />
-	<script type="text/javascript" src="../../../jquery-1.4.2.js"></script>
+	<script type="text/javascript" src="../../../jquery-1.5.1.js"></script>
 	<script type="text/javascript" src="../../../ui/jquery.ui.core.js"></script>
 	<script type="text/javascript" src="../../../ui/jquery.ui.widget.js"></script>
 	<script type="text/javascript" src="../../../ui/jquery.ui.checkbox.js"></script>

ui/jquery.ui.checkbox.js

@@ -18,7 +18,10 @@
 var checkboxId = 0;
 
 $.widget( "ui.checkbox", {
-
+	version: "@VERSION",
+	options: {
+		disabled : null
+	},
 	_create: function() {
 
 		var that = this;
@@ -101,7 +104,8 @@ $.widget( "ui.checkbox", {
 	},
 
 	_refresh: function() {
-		this.iconElement.toggleClass( "ui-icon ui-icon-check", this.element.is(":checked") );
+		var checked = this.element.is(":checked");
+		this.iconElement.toggleClass( "ui-icon ui-icon-check", checked ).attr( "aria-checked", checked );
 	},
 
 	widget: function() {
@@ -126,14 +130,10 @@ $.widget( "ui.checkbox", {
 			this.checkboxElement
 				[ value ? "addClass" : "removeClass" ]( "ui-checkbox-disabled" );
 		}
-		
+
 		$.Widget.prototype._setOption.apply( this, arguments );
 	},
 
 });
 
-$.extend( $.ui.checkbox, {
-	version: "@VERSION"
-});
-
 }( jQuery ));