text: ( function ( mw, $ ) {
  	'use strict';
  
  	var debug,
  		hovzer = $.getFootHovzer();
  
  	/**
  	 * Debug toolbar.
  	 *
  	 * Enabled server-side through `$wgDebugToolbar`.
  	 *
  	 * @class mw.Debug
  	 * @singleton
  	 * @author John Du Hart
  	 * @since 1.19
  	 */
  	debug = mw.Debug = {
  		/**
  		 * Toolbar container element
  		 *
  		 * @property {jQuery}
  		 */
  		$container: null,
  
  		/**
  		 * Object containing data for the debug toolbar
  		 *
  		 * @property {Object}
  		 */
  		data: {},
  
  		/**
  		 * Initialize the debugging pane
  		 *
  		 * Shouldn't be called before the document is ready
  		 * (since it binds to elements on the page).
  		 *
  		 * @param {Object} [data] Defaults to 'debugInfo' from mw.config
  		 */
  		init: function ( data ) {
  
  			this.data = data || mw.config.get( 'debugInfo' );
  			this.buildHtml();
  
  			// Insert the container into the DOM
  			hovzer.$.append( this.$container );
  			hovzer.update();
  
  			$( '.mw-debug-panelink' ).click( this.switchPane );
  		},
  
  		/**
  		 * Switch between panes
  		 *
  		 * Should be called with an HTMLElement as its thisArg,
  		 * because it's meant to be an event handler.
  		 *
  		 * TODO: Store cookie for last pane open.
  		 *
  		 * @param {jQuery.Event} e
  		 */
  		switchPane: function ( e ) {
  			var currentPaneId = debug.$container.data( 'currentPane' ),
  				requestedPaneId = $( this ).prop( 'id' ).slice( 9 ),
  				$currentPane = $( '#mw-debug-pane-' + currentPaneId ),
  				$requestedPane = $( '#mw-debug-pane-' + requestedPaneId ),
  				hovDone = false;
  
  			function updateHov() {
  				if ( !hovDone ) {
  					hovzer.update();
  					hovDone = true;
  				}
  			}
  
  			// Skip hash fragment handling. Prevents screen from jumping.
  			e.preventDefault();
  
  			$( this ).addClass( 'current ' );
  			$( '.mw-debug-panelink' ).not( this ).removeClass( 'current ' );
  
  			// Hide the current pane
  			if ( requestedPaneId === currentPaneId ) {
  				$currentPane.slideUp( updateHov );
  				debug.$container.data( 'currentPane', null );
  				return;
  			}
  
  			debug.$container.data( 'currentPane', requestedPaneId );
  
  			if ( currentPaneId === undefined || currentPaneId === null ) {
  				$requestedPane.slideDown( updateHov );
  			} else {
  				$currentPane.hide();
  				$requestedPane.show();
  				updateHov();
  			}
  		},
  
  		/**
  		 * Construct the HTML for the debugging toolbar
  		 */
  		buildHtml: function () {
  			var $container, $bits, panes, id, gitInfo;
  
  			$container = $( '<div id="mw-debug-toolbar" class="mw-debug" lang="en" dir="ltr"></div>' );
  
  			$bits = $( '<div class="mw-debug-bits"></div>' );
  
  			/**
  			 * Returns a jQuery element for a debug-bit div
  			 *
  			 * @ignore
  			 * @param {string} id
  			 * @return {jQuery}
  			 */
  			function bitDiv( id ) {
  				return $( '<div>' ).prop( {
  					id: 'mw-debug-' + id,
  					className: 'mw-debug-bit'
  				} ).appendTo( $bits );
  			}
  
  			/**
  			 * Returns a jQuery element for a pane link
  			 *
  			 * @ignore
  			 * @param {string} id
  			 * @param {string} text
  			 * @return {jQuery}
  			 */
  			function paneLabel( id, text ) {
  				return $( '<a>' )
  					.prop( {
  						className: 'mw-debug-panelabel',
  						href: '#mw-debug-pane-' + id
  					} )
  					.text( text );
  			}
  
  			/**
  			 * Returns a jQuery element for a debug-bit div with a for a pane link
  			 *
  			 * @ignore
  			 * @param {string} id CSS id snippet. Will be prefixed with 'mw-debug-'
  			 * @param {string} text Text to show
  			 * @param {string} count Optional count to show
  			 * @return {jQuery}
  			 */
  			function paneTriggerBitDiv( id, text, count ) {
  				if ( count ) {
  					text = text + ' (' + count + ')';
  				}
  				return $( '<div>' ).prop( {
  					id: 'mw-debug-' + id,
  					className: 'mw-debug-bit mw-debug-panelink'
  				} )
  					.append( paneLabel( id, text ) )
  					.appendTo( $bits );
  			}
  
  			paneTriggerBitDiv( 'console', 'Console', this.data.log.length );
  
  			paneTriggerBitDiv( 'querylist', 'Queries', this.data.queries.length );
  
  			paneTriggerBitDiv( 'debuglog', 'Debug log', this.data.debugLog.length );
  
  			paneTriggerBitDiv( 'request', 'Request' );
  
  			paneTriggerBitDiv( 'includes', 'PHP includes', this.data.includes.length );
  
  			gitInfo = '';
  			if ( this.data.gitRevision !== false ) {
  				gitInfo = '(' + this.data.gitRevision.slice( 0, 7 ) + ')';
  				if ( this.data.gitViewUrl !== false ) {
  					gitInfo = $( '<a>' )
  						.attr( 'href', this.data.gitViewUrl )
  						.text( gitInfo );
  				}
  			}
  
  			bitDiv( 'mwversion' )
  				.append( $( '<a href="//www.mediawiki.org/">MediaWiki</a>' ) )
  				.append( document.createTextNode( ': ' + this.data.mwVersion + ' ' ) )
  				.append( gitInfo );
  
  			if ( this.data.gitBranch !== false ) {
  				bitDiv( 'gitbranch' ).text( 'Git branch: ' + this.data.gitBranch );
  			}
  
  			bitDiv( 'phpversion' )
  				.append( $( this.data.phpEngine === 'HHVM' ?
  					'<a href="http://hhvm.com/">HHVM</a>' :
  					'<a href="https://php.net/">PHP</a>'
  				) )
  				.append( ': ' + this.data.phpVersion );
  
  			bitDiv( 'time' )
  				.text( 'Time: ' + this.data.time.toFixed( 5 ) );
  
  			bitDiv( 'memory' )
  				.text( 'Memory: ' + this.data.memory + ' (Peak: ' + this.data.memoryPeak + ')' );
  
  			$bits.appendTo( $container );
  
  			panes = {
  				console: this.buildConsoleTable(),
  				querylist: this.buildQueryTable(),
  				debuglog: this.buildDebugLogTable(),
  				request: this.buildRequestPane(),
  				includes: this.buildIncludesPane()
  			};
  
  			for ( id in panes ) {
  				if ( !panes.hasOwnProperty( id ) ) {
  					continue;
  				}
  
  				$( '<div>' )
  					.prop( {
  						className: 'mw-debug-pane',
  						id: 'mw-debug-pane-' + id
  					} )
  					.append( panes[ id ] )
  					.appendTo( $container );
  			}
  
  			this.$container = $container;
  		},
  
  		/**
  		 * Build the console panel
  		 *
  		 * @return {jQuery} Console panel
  		 */
  		buildConsoleTable: function () {
  			var $table, entryTypeText, i, length, entry;
  
  			$table = $( '<table id="mw-debug-console">' );
  
  			$( '<colgroup>' ).css( 'width', /* padding = */ 20 + ( 10 * /* fontSize = */ 11 ) ).appendTo( $table );
  			$( '<colgroup>' ).appendTo( $table );
  			$( '<colgroup>' ).css( 'width', 350 ).appendTo( $table );
  
  			entryTypeText = function ( entryType ) {
  				switch ( entryType ) {
  					case 'log':
  						return 'Log';
  					case 'warn':
  						return 'Warning';
  					case 'deprecated':
  						return 'Deprecated';
  					default:
  						return 'Unknown';
  				}
  			};
  
  			for ( i = 0, length = this.data.log.length; i < length; i += 1 ) {
  				entry = this.data.log[ i ];
  				entry.typeText = entryTypeText( entry.type );
  
  				$( '<tr>' )
  					.append( $( '<td>' )
  						.text( entry.typeText )
  						.addClass( 'mw-debug-console-' + entry.type )
  					)
  					.append( $( '<td>' ).html( entry.msg ) )
  					.append( $( '<td>' ).text( entry.caller ) )
  					.appendTo( $table );
  			}
  
  			return $table;
  		},
  
  		/**
  		 * Build query list pane
  		 *
  		 * @return {jQuery}
  		 */
  		buildQueryTable: function () {
  			var $table, i, length, query;
  
  			$table = $( '<table id="mw-debug-querylist"></table>' );
  
  			$( '<tr>' )
  				.append( $( '<th>#</th>' ).css( 'width', '4em' ) )
  				.append( $( '<th>SQL</th>' ) )
  				.append( $( '<th>Time</th>' ).css( 'width', '8em' ) )
  				.append( $( '<th>Call</th>' ).css( 'width', '18em' ) )
  				.appendTo( $table );
  
  			for ( i = 0, length = this.data.queries.length; i < length; i += 1 ) {
  				query = this.data.queries[ i ];
  
  				$( '<tr>' )
  					.append( $( '<td>' ).text( i + 1 ) )
  					.append( $( '<td>' ).text( query.sql ) )
  					.append( $( '<td class="stats">' ).text( ( query.time * 1000 ).toFixed( 4 ) + 'ms' ) )
  					.append( $( '<td>' ).text( query[ 'function' ] ) )
  					.appendTo( $table );
  			}
  
  			return $table;
  		},
  
  		/**
  		 * Build legacy debug log pane
  		 *
  		 * @return {jQuery}
  		 */
  		buildDebugLogTable: function () {
  			var $list, i, length, line;
  			$list = $( '<ul>' );
  
  			for ( i = 0, length = this.data.debugLog.length; i < length; i += 1 ) {
  				line = this.data.debugLog[ i ];
  				$( '<li>' )
  					.html( mw.html.escape( line ).replace( /\n/g, '<br />\n' ) )
  					.appendTo( $list );
  			}
  
  			return $list;
  		},
  
  		/**
  		 * Build request information pane
  		 *
  		 * @return {jQuery}
  		 */
  		buildRequestPane: function () {
  
  			function buildTable( title, data ) {
  				var $unit, $table, key;
  
  				$unit = $( '<div>' ).append( $( '<h2>' ).text( title ) );
  
  				$table = $( '<table>' ).appendTo( $unit );
  
  				$( '<tr>' )
  					.html( '<th>Key</th><th>Value</th>' )
  					.appendTo( $table );
  
  				for ( key in data ) {
  					if ( !data.hasOwnProperty( key ) ) {
  						continue;
  					}
  
  					$( '<tr>' )
  						.append( $( '<th>' ).text( key ) )
  						.append( $( '<td>' ).text( data[ key ] ) )
  						.appendTo( $table );
  				}
  
  				return $unit;
  			}
  
  			return $( '<div>' )
  				.text( this.data.request.method + ' ' + this.data.request.url )
  				.append( buildTable( 'Headers', this.data.request.headers ) )
  				.append( buildTable( 'Parameters', this.data.request.params ) );
  		},
  
  		/**
  		 * Build included files pane
  		 *
  		 * @return {jQuery}
  		 */
  		buildIncludesPane: function () {
  			var $table, i, length, file;
  
  			$table = $( '<table>' );
  
  			for ( i = 0, length = this.data.includes.length; i < length; i += 1 ) {
  				file = this.data.includes[ i ];
  				$( '<tr>' )
  					.append( $( '<td>' ).text( file.name ) )
  					.append( $( '<td class="nr">' ).text( file.size ) )
  					.appendTo( $table );
  			}
  
  			return $table;
  		}
  	};
  
  	$( function () {
  		debug.init();
  	} );
  
  }( mediaWiki, jQuery ) );
  