Cleanup of responsive component

responsive.diff

diff --git src/wp-admin/css/color-schemes/_admin.scss src/wp-admin/css/color-schemes/_admin.scss
index f7a4bc2..0a467a4 100644
--- src/wp-admin/css/color-schemes/_admin.scss
+++ src/wp-admin/css/color-schemes/_admin.scss
@@ -366,11 +366,11 @@ ul#adminmenu > li.current > a.current:after {
 
 /* Responsive Component */
 
-div#moby6-toggle a:before {
+div#responsive-toggle a:before {
 	color: $menu-icon;
 }
 
-.moby6-open div#moby6-toggle a {
+.responsive-open div#responsive-toggle a {
 	// ToDo: make inset border
 	border-color: transparent;
 	background: $menu-highlight-background;
diff --git src/wp-admin/css/wp-admin.css src/wp-admin/css/wp-admin.css
index fadb683..b67a721 100644
--- src/wp-admin/css/wp-admin.css
+++ src/wp-admin/css/wp-admin.css
@@ -11211,7 +11211,7 @@ li#wp-admin-bar-toggle-button {
 		transition: left .05s ease-in-out, opacity .3s ease-in;
 	}
 
-	.auto-fold .moby6-open #adminmenu {
+	.auto-fold .responsive-open #adminmenu {
 		-moz-opacity: 1;
 		-webkit-opacity: 1;
 		opacity: 1;
@@ -11283,7 +11283,7 @@ li#wp-admin-bar-toggle-button {
 	}
 
 	/*  Sidebar Toggle */
-	#moby6-toggle {
+	#responsive-toggle {
 		position: fixed;
 		top: 5px;
 		left: 4px;
@@ -11298,16 +11298,16 @@ li#wp-admin-bar-toggle-button {
 		margin-top: -2px;
 	}
 
-	.moby6-open #wpadminbar #wp-admin-bar-toggle-button a {
+	.responsive-open #wpadminbar #wp-admin-bar-toggle-button a {
 		background: #000;
 	}
 
-	.moby6-open #wpbody {
+	.responsive-open #wpbody {
 		right: -190px;
 	}
 
-	.auto-fold .moby6-open #adminmenuback,
-	.auto-fold .moby6-open #adminmenuwrap {
+	.auto-fold .responsive-open #adminmenuback,
+	.auto-fold .responsive-open #adminmenuwrap {
 		left: 0;
 	}
 
@@ -12372,7 +12372,7 @@ li#wp-admin-bar-toggle-button {
 
 /* Smartphone */
 @media screen and (max-width: 480px) {
-	#moby6-overlay {
+	#responsive-overlay {
 		position: fixed;
 		top: 0;
 		left: 0;
diff --git src/wp-admin/js/common.js src/wp-admin/js/common.js
index 3406ee0..fa5b995 100644
--- src/wp-admin/js/common.js
+++ src/wp-admin/js/common.js
@@ -1,5 +1,5 @@
-/* global setUserSetting, ajaxurl, commonL10n, alert, confirm, toggleWithKeyboard, pagenow */
-var showNotice, adminMenu, columns, validateForm, screenMeta, stickyMenu;
+/* global setUserSetting, ajaxurl, commonL10n, alert, confirm, toggleWithKeyboard, pagenow, _ */
+var showNotice, adminMenu, columns, validateForm, screenMeta, stickyMenu, responsive;
 (function($){
 // Removed in 3.3.
 // (perhaps) needed for back-compat
@@ -461,7 +461,7 @@ stickyMenu = {
 
 	enable: function () {
 		if ( ! this.active ) {
-			this.$window.on( 'resize.stickyMenu scroll.stickyMenu', this.debounce(
+			this.$window.on( 'resize.stickyMenu scroll.stickyMenu', _.debounce(
 				$.proxy( this.update, this ), 200
 			) );
 			this.$collapseMenu.on( 'click.stickyMenu', $.proxy( this.update, this ) );
@@ -492,139 +492,105 @@ stickyMenu = {
 				this.$body.removeClass( 'sticky-menu' );
 			}
 		}
-	},
-
-	// Borrowed from Underscore.js
-	debounce: function( func, wait, immediate ) {
-		var timeout, args, context, timestamp, result;
-		return function() {
-			var later, callNow;
-			context = this;
-			args = arguments;
-			timestamp = new Date().getTime();
-			later = function() {
-				var last = new Date().getTime() - timestamp;
-				if ( last < wait ) {
-					timeout = setTimeout( later, wait - last );
-				} else {
-					timeout = null;
-					if ( ! immediate ) {
-						result = func.apply( context, args );
-						context = args = null;
-					}
-				}
-			};
-			callNow = immediate && !timeout;
-			if ( ! timeout ) {
-				timeout = setTimeout( later, wait );
-			}
-			if ( callNow ) {
-				result = func.apply( context, args );
-				context = args = null;
-			}
-
-			return result;
-		};
 	}
 };
 
 stickyMenu.init();
 
-var moby6 = {
+responsive = {
 
 	init: function() {
 		// cached selectors
+		this.$window = $( window );
 		this.$html = $( document.documentElement );
 		this.$body = $( document.body );
 		this.$wpwrap = $( '#wpwrap' );
 		this.$wpbody = $( '#wpbody' );
 		this.$adminmenu = $( '#adminmenu' );
-		this.$overlay = $( '#moby6-overlay' );
+		this.$overlay = $( '#responsive-overlay' );
 		this.$toolbar = $( '#wp-toolbar' );
 		this.$toolbarPopups = this.$toolbar.find( 'a[aria-haspopup="true"]' );
 
 		// Modify functionality based on custom activate/deactivate event
 		this.$html
-			.on( 'activate.moby6', function() { moby6.activate(); } )
-			.on( 'deactivate.moby6', function() { moby6.deactivate(); } );
+			.on( 'activate.responsive', function() {
+				responsive.activate();
+			} )
+			.on( 'deactivate.responsive', function() {
+				responsive.deactivate();
+			} );
 
 		// Toggle sidebar when toggle is clicked
-		$( '#wp-admin-bar-toggle-button' ).on( 'click', function(evt) {
+		$( '#wp-admin-bar-toggle-button' ).on( 'click', function( evt ) {
 			evt.preventDefault();
-			moby6.$wpwrap.toggleClass( 'moby6-open' );
+			responsive.$wpwrap.toggleClass( 'responsive-open' );
 		} );
 
 		// Trigger custom events based on active media query.
-		this.matchMedia();
-		$( window ).on( 'resize', $.proxy( this.matchMedia, this ) );
+		this.toggleElements();
+		this.$window.on( 'resize', _.debounce(
+			$.proxy( this.toggleElements, this ), 150
+		) );
 	},
 
 	activate: function() {
+		stickyMenu.disable();
 
-		window.stickymenu && window.stickymenu.disable();
-
-		if ( ! moby6.$body.hasClass( 'auto-fold' ) )
-			moby6.$body.addClass( 'auto-fold' );
+		if ( ! this.$body.hasClass( 'auto-fold' ) ) {
+			this.$body.addClass( 'auto-fold' );
+		}
 
 		this.modifySidebarEvents();
 		this.disableDraggables();
 		this.movePostSearch();
-
 	},
 
 	deactivate: function() {
-
-		window.stickymenu && window.stickymenu.enable();
-
+		stickyMenu.enable();
 		this.enableDraggables();
-		this.removeHamburgerButton();
 		this.restorePostSearch();
-
 	},
 
-	matchMedia: function() {
-		clearTimeout( this.resizeTimeout );
-		this.resizeTimeout = setTimeout( function() {
-
-			if ( ! window.matchMedia )
+	toggleElements: function() {
+		var width = this.$window.width();
+		if ( width <= 782 ) {
+			if ( responsive.$html.hasClass( 'touch' ) ) {
 				return;
-
-			if ( window.matchMedia( '(max-width: 782px)' ).matches ) {
-				if ( moby6.$html.hasClass( 'touch' ) )
-					return;
-				moby6.$html.addClass( 'touch' ).trigger( 'activate.moby6' );
-			} else {
-				if ( ! moby6.$html.hasClass( 'touch' ) )
-					return;
-				moby6.$html.removeClass( 'touch' ).trigger( 'deactivate.moby6' );
 			}
 
-			if ( window.matchMedia( '(max-width: 480px)' ).matches ) {
-				moby6.enableOverlay();
-			} else {
-				moby6.disableOverlay();
+			responsive.$html.addClass( 'touch' ).trigger( 'activate.responsive' );
+		} else {
+			if ( ! responsive.$html.hasClass( 'touch' ) ) {
+				return;
 			}
 
-		}, 150 );
+			responsive.$html.removeClass( 'touch' ).trigger( 'deactivate.responsive' );
+		}
+
+		if ( width <= 480 ) {
+			responsive.enableOverlay();
+		} else {
+			responsive.disableOverlay();
+		}
 	},
 
 	enableOverlay: function() {
 		if ( this.$overlay.length === 0 ) {
-			this.$overlay = $( '<div id="moby6-overlay"></div>' )
+			this.$overlay = $( '<div id="responsive-overlay"></div>' )
 				.insertAfter( '#wpcontent' )
 				.hide()
-				.on( 'click.moby6', function() {
-					moby6.$toolbar.find( '.menupop.hover' ).removeClass( 'hover' );
+				.on( 'click.responsive', function() {
+					responsive.$toolbar.find( '.menupop.hover' ).removeClass( 'hover' );
 					$( this ).hide();
 				});
 		}
-		this.$toolbarPopups.on( 'click.moby6', function() {
-			moby6.$overlay.show();
+		this.$toolbarPopups.on( 'click.responsive', function() {
+			responsive.$overlay.show();
 		});
 	},
 
 	disableOverlay: function() {
-		this.$toolbarPopups.off( 'click.moby6' );
+		this.$toolbarPopups.off( 'click.responsive' );
 		this.$overlay.hide();
 	},
 
@@ -633,15 +599,16 @@ var moby6 = {
 		this.$adminmenu.find( 'a.wp-has-submenu' ).off( '.wp-mobile-hover' );
 
 		var scrollStart = 0;
-		this.$adminmenu.on( 'touchstart.moby6', 'li.wp-has-submenu > a', function() {
-			scrollStart = $( window ).scrollTop();
+		this.$adminmenu.on( 'touchstart.responsive', 'li.wp-has-submenu > a', function() {
+			scrollStart = responsive.$window.scrollTop();
 		});
 
-		this.$adminmenu.on( 'touchend.moby6', 'li.wp-has-submenu > a', function( e ) {
+		this.$adminmenu.on( 'touchend.responsive', 'li.wp-has-submenu > a', function( e ) {
 			e.preventDefault();
 
-			if ( $( window ).scrollTop() !== scrollStart )
-				return false;
+			if ( responsive.$window.scrollTop() !== scrollStart ) {
+				return;
+			}
 
 			$( this ).find( 'li.wp-has-submenu' ).removeClass( 'selected' );
 			$( this ).parent( 'li' ).addClass( 'selected' );
@@ -662,11 +629,6 @@ var moby6 = {
 			.addClass( 'hndle' );
 	},
 
-	removeHamburgerButton: function() {
-		if ( this.hamburgerButtonView !== undefined )
-			this.hamburgerButtonView.destroy();
-	},
-
 	movePostSearch: function() {
 		this.searchBox = this.$wpbody.find( 'p.search-box' );
 		if ( this.searchBox.length ) {
@@ -681,14 +643,15 @@ var moby6 = {
 	restorePostSearch: function() {
 		if ( this.searchBox !== undefined ) {
 			this.searchBox.show();
-			if ( this.searchBoxClone !== undefined )
+			if ( this.searchBoxClone !== undefined ) {
 				this.searchBoxClone.hide();
+			}
 		}
 	}
 };
 
-// Fire moby6.init when document is ready
-$( document ).ready( $.proxy( moby6.init, moby6 ) );
+// Fire responsive.init when document is ready
+$( document ).ready( $.proxy( responsive.init, responsive ) );
 
 // make Windows 8 devices playing along nicely
 (function(){
diff --git src/wp-includes/css/admin-bar.css src/wp-includes/css/admin-bar.css
index 0f1f5d8..35837de 100644
--- src/wp-includes/css/admin-bar.css
+++ src/wp-includes/css/admin-bar.css
@@ -947,7 +947,7 @@
 
 /* Smartphone */
 @media screen and (max-width: 480px) {
-	#moby6-overlay {
+	#responsive-overlay {
 		position: fixed;
 		top: 0;
 		left: 0;
diff --git src/wp-includes/script-loader.php src/wp-includes/script-loader.php
index b1f0680..bfafa83 100644
--- src/wp-includes/script-loader.php
+++ src/wp-includes/script-loader.php
@@ -72,7 +72,7 @@ function wp_default_scripts( &$scripts ) {
 		'time' => (string) time(),
 	) );
 
-	$scripts->add( 'common', "/wp-admin/js/common$suffix.js", array('jquery', 'hoverIntent', 'utils'), false, 1 );
+	$scripts->add( 'common', "/wp-admin/js/common$suffix.js", array('jquery', 'hoverIntent', 'utils', 'underscore'), false, 1 );
 	did_action( 'init' ) && $scripts->localize( 'common', 'commonL10n', array(
 		'warnDelete' => __("You are about to permanently delete the selected items.\n  'Cancel' to stop, 'OK' to delete.")
 	) );