Widget: Added ability to define how to find options on init. Fixes #6158 - Widget: Ability to define new methods for gathering options on init.

tests/unit/widget/widget_core.js

@@ -156,6 +156,32 @@ test("merge multiple option arguments", function() {
 	});
 });
 
+test( "_getCreateOptions()", function() {
+	expect( 1 );
+	$.widget( "ui.testWidget", {
+		options: {
+			option1: "valuex",
+			option2: "valuex",
+			option3: "value3",
+		},
+		_getCreateOptions: function() {
+			return {
+				option1: "override1",
+				option2: "overideX",
+			};
+		},
+		_create: function() {
+			same( this.options, {
+				disabled: false,
+				option1: "override1",
+				option2: "value2",
+				option3: "value3"
+			});
+		}
+	});
+	$( "<div>" ).testWidget({ option2: "value2" });
+});
+
 test( "re-init", function() {
 	var div = $( "<div></div>" ),
 		actions = [];

ui/jquery.ui.widget.js

@@ -145,7 +145,7 @@ $.Widget.prototype = {
 		this.element = $( element );
 		this.options = $.extend( true, {},
 			this.options,
-			$.metadata && $.metadata.get( element )[ this.widgetName ],
+			this._getCreateOptions(),
 			options );
 
 		var self = this;
@@ -157,6 +157,13 @@ $.Widget.prototype = {
 		this._trigger( "create" );
 		this._init();
 	},
+	_getCreateOptions: function() {
+		var options = {};
+		if ( $.metadata ) {
+			options = $.metadata.get( element )[ this.widgetName ];
+		}
+		return options;
+	},
 	_create: function() {},
 	_init: function() {},