Widget: Ensure window and document are defined in _getCreateOptions()

Closes gh-1320

Author: arschmitz

tests/unit/widget/widget_core.js

@@ -260,14 +260,17 @@ test( "merge multiple option arguments", function() {
 });
 
 test( "._getCreateOptions()", function() {
-	expect( 1 );
+	expect( 3 );
 	$.widget( "ui.testWidget", {
 		options: {
 			option1: "valuex",
 			option2: "valuex",
 			option3: "value3"
 		},
 		_getCreateOptions: function() {
+			strictEqual( this.window[ 0 ], window, "this.window is properly defined" );
+			strictEqual( this.document[ 0 ], document, "this.document is properly defined" );
+
 			return {
 				option1: "override1",
 				option2: "overideX"

ui/widget.js

@@ -254,10 +254,6 @@ $.Widget.prototype = {
 		this.element = $( element );
 		this.uuid = widget_uuid++;
 		this.eventNamespace = "." + this.widgetName + this.uuid;
-		this.options = $.widget.extend( {},
-			this.options,
-			this._getCreateOptions(),
-			options );
 
 		this.bindings = $();
 		this.hoverable = $();
@@ -280,6 +276,11 @@ $.Widget.prototype = {
 			this.window = $( this.document[0].defaultView || this.document[0].parentWindow );
 		}
 
+		this.options = $.widget.extend( {},
+			this.options,
+			this._getCreateOptions(),
+			options );
+
 		this._create();
 		this._trigger( "create", null, this._getCreateEventData() );
 		this._init();