Removed guard against duplicate loading. Use safe references to original functions when proxying, don't rename originals.

Author: scottgonzalez

ui/jquery.ui.core.js

@@ -13,13 +13,8 @@
 var uuid = 0,
 	runiqueId = /^ui-id-\d+$/;
 
-// prevent duplicate loading
-// this is only a problem because we proxy existing functions
-// and we don't want to double proxy them
+// $.ui might exist from components with no dependencies, e.g., $.ui.position
 $.ui = $.ui || {};
-if ( $.ui.version ) {
-	return;
-}
 
 $.extend( $.ui, {
 	version: "@VERSION",
@@ -52,20 +47,21 @@ $.extend( $.ui, {
 
 // plugins
 $.fn.extend({
-	_focus: $.fn.focus,
-	focus: function( delay, fn ) {
-		return typeof delay === "number" ?
-			this.each(function() {
-				var elem = this;
-				setTimeout(function() {
-					$( elem ).focus();
-					if ( fn ) {
-						fn.call( elem );
-					}
-				}, delay );
-			}) :
-			this._focus.apply( this, arguments );
-	},
+	focus: (function( orig ) {
+		return function( delay, fn ) {
+			return typeof delay === "number" ?
+				this.each(function() {
+					var elem = this;
+					setTimeout(function() {
+						$( elem ).focus();
+						if ( fn ) {
+							fn.call( elem );
+						}
+					}, delay );
+				}) :
+				orig.apply( this, arguments );
+		};
+	})( $.fn.focus ),
 
 	scrollParent: function() {
 		var scrollParent;

ui/jquery.ui.effect.js

@@ -8,7 +8,7 @@
  *
  * http://api.jqueryui.com/category/effects-core/
  */
-;(jQuery.effects || (function($, undefined) {
+(function($, undefined) {
 
 var dataSpace = "ui-effects-";
 
@@ -839,39 +839,42 @@ $.effects.animateClass = function( value, duration, easing, callback ) {
 };
 
 $.fn.extend({
-	_addClass: $.fn.addClass,
-	addClass: function( classNames, speed, easing, callback ) {
-		return speed ?
-			$.effects.animateClass.call( this,
-				{ add: classNames }, speed, easing, callback ) :
-			this._addClass( classNames );
-	},
-
-	_removeClass: $.fn.removeClass,
-	removeClass: function( classNames, speed, easing, callback ) {
-		return arguments.length > 1 ?
-			$.effects.animateClass.call( this,
-				{ remove: classNames }, speed, easing, callback ) :
-			this._removeClass.apply( this, arguments );
-	},
-
-	_toggleClass: $.fn.toggleClass,
-	toggleClass: function( classNames, force, speed, easing, callback ) {
-		if ( typeof force === "boolean" || force === undefined ) {
-			if ( !speed ) {
-				// without speed parameter
-				return this._toggleClass( classNames, force );
+	addClass: (function( orig ) {
+		return function( classNames, speed, easing, callback ) {
+			return speed ?
+				$.effects.animateClass.call( this,
+					{ add: classNames }, speed, easing, callback ) :
+				orig.apply( this, arguments );
+		};
+	})( $.fn.addClass ),
+
+	removeClass: (function( orig ) {
+		return function( classNames, speed, easing, callback ) {
+			return arguments.length > 1 ?
+				$.effects.animateClass.call( this,
+					{ remove: classNames }, speed, easing, callback ) :
+				orig.apply( this, arguments );
+		};
+	})( $.fn.removeClass ),
+
+	toggleClass: (function( orig ) {
+		return function( classNames, force, speed, easing, callback ) {
+			if ( typeof force === "boolean" || force === undefined ) {
+				if ( !speed ) {
+					// without speed parameter
+					return orig.apply( this, arguments );
+				} else {
+					return $.effects.animateClass.call( this,
+						(force ? { add: classNames } : { remove: classNames }),
+						speed, easing, callback );
+				}
 			} else {
+				// without force parameter
 				return $.effects.animateClass.call( this,
-					(force ? { add: classNames } : { remove: classNames }),
-					speed, easing, callback );
+					{ toggle: classNames }, force, speed, easing );
 			}
-		} else {
-			// without force parameter
-			return $.effects.animateClass.call( this,
-				{ toggle: classNames }, force, speed, easing );
-		}
-	},
+		};
+	})( $.fn.toggleClass ),
 
 	switchClass: function( remove, add, speed, easing, callback) {
 		return $.effects.animateClass.call( this, {
@@ -1283,4 +1286,4 @@ $.each( baseEasings, function( name, easeIn ) {
 
 })();
 
-})(jQuery));
+})(jQuery);