/**
 * Toolbar module for wikiEditor
 */
( function ( mw, $ ) { $.wikiEditor.modules.toolbar = {

/**
 * API accessible functions
 */
api : {
	addToToolbar : function( context, data ) {

		var smooth = true, type, i;

		for ( type in data ) {
			switch ( type ) {
				case 'sections':
					var	$sections = context.modules.toolbar.$toolbar.find( 'div.sections' ),
						$tabs = context.modules.toolbar.$toolbar.find( 'div.tabs' );
					for ( var section in data[type] ) {
						if ( section == 'main' ) {
							// Section
							context.modules.toolbar.$toolbar.prepend(
								$.wikiEditor.modules.toolbar.fn.buildSection(
									context, section, data[type][section]
								)
							);
							continue;
						}
						// Section
						$sections.append(
							$.wikiEditor.modules.toolbar.fn.buildSection( context, section, data[type][section] )
						);
						// Tab
						$tabs.append(
							$.wikiEditor.modules.toolbar.fn.buildTab( context, section, data[type][section] )
						);
					}
					break;
				case 'groups':
					if ( ! ( 'section' in data ) ) {
						continue;
					}
					var	$section = context.modules.toolbar.$toolbar.find( 'div[rel="' + data.section + '"].section' );
					for ( var group in data[type] ) {
						// Group
						$section.append(
							$.wikiEditor.modules.toolbar.fn.buildGroup( context, group, data[type][group] )
						);
					}
					smooth = false;
					break;
				case 'tools':
					if ( ! ( 'section' in data && 'group' in data ) ) {
						continue;
					}
					var $group = context.modules.toolbar.$toolbar.find(
						'div[rel="' + data.section + '"].section ' + 'div[rel="' + data.group + '"].group'
					);
					for ( var tool in data[type] ) {
						// Tool
						$group.append( $.wikiEditor.modules.toolbar.fn.buildTool( context, tool, data[type][tool] ) );
					}
					if ( $group.children().length ) {
						$group.show();
					}
					smooth = false;
					break;
				case 'pages':
					if ( ! ( 'section' in data ) ) {
						continue;
					}
					var $pages = context.modules.toolbar.$toolbar.find(
						'div[rel="' + data.section + '"].section .pages'
					);
					var $index = context.modules.toolbar.$toolbar.find(
						'div[rel="' + data.section + '"].section .index'
					);
					for ( var page in data[type] ) {
						// Page
						$pages.append( $.wikiEditor.modules.toolbar.fn.buildPage( context, page, data[type][page] ) );
						// Index
						$index.append(
							$.wikiEditor.modules.toolbar.fn.buildBookmark( context, page, data[type][page] )
						);
					}
					$.wikiEditor.modules.toolbar.fn.updateBookletSelection( context, page, $pages, $index );
					smooth = false;
					break;
				case 'rows':
					if ( ! ( 'section' in data && 'page' in data ) ) {
						continue;
					}
					var $table = context.modules.toolbar.$toolbar.find(
						'div[rel="' + data.section + '"].section ' + 'div[rel="' + data.page + '"].page table'
					);
					for ( i = 0; i < data.rows.length; i++ ) {
						// Row
						$table.append( $.wikiEditor.modules.toolbar.fn.buildRow( context, data.rows[i] ) );
					}
					smooth = false;
					break;
				case 'characters':
					if ( ! ( 'section' in data && 'page' in data ) ) {
						continue;
					}
					var $characters = context.modules.toolbar.$toolbar.find(
						'div[rel="' + data.section + '"].section ' + 'div[rel="' + data.page + '"].page div'
					);
					var actions = $characters.data( 'actions' );
					for ( i = 0; i < data.characters.length; i++ ) {
						// Character
						$characters
						.append(
							$( $.wikiEditor.modules.toolbar.fn.buildCharacter( data.characters[i], actions ) )
								.mousedown( function( e ) {
									context.fn.saveCursorAndScrollTop();
									// No dragging!
									e.preventDefault();
									return false;
								} )
								.click( function( e ) {
									$.wikiEditor.modules.toolbar.fn.doAction( $(this).parent().data( 'context' ),
										$(this).parent().data( 'actions' )[$(this).attr( 'rel' )] );
									e.preventDefault();
									return false;
								} )
						);
					}
					smooth = false;
					break;
				default: break;
			}
		}

		// Fix div.section size after adding things; if smooth is true uses a smooth
		// animation, otherwise just change height (breaking any ongoing animation)
		var $divSections = context.modules.toolbar.$toolbar.find( 'div.sections' );
		var $visibleSection = $divSections.find( '.section:visible' );
		if ( $visibleSection.size() ) {
			if ( smooth ) {
				$divSections.animate( { 'height': $visibleSection.outerHeight() }, 'fast' );
			} else {
				$divSections.height( $visibleSection.outerHeight() );
			}
		}
	},
	removeFromToolbar : function( context, data ) {
		if ( typeof data.section == 'string' ) {
			// Section
			var tab = 'div.tabs span[rel="' + data.section + '"].tab';
			var target = 'div[rel="' + data.section + '"].section';
			var group = null;
			if ( typeof data.group == 'string' ) {
				// Toolbar group
				target += ' div[rel="' + data.group + '"].group';
				if ( typeof data.tool == 'string' ) {
					// Save for later checking if empty
					group = target;
					// Tool
					target += ' a[rel="' + data.tool + '"].tool';
				}
			} else if ( typeof data.page == 'string' ) {
				// Booklet page
				var index = target + ' div.index div[rel="' + data.page + '"]';
				target += ' div.pages div[rel="' + data.page + '"].page';
				if ( typeof data.character == 'string' ) {
					// Character
					target += ' span[rel="' + data.character + '"]';
				} else if ( typeof data.row == 'number' ) {
					// Table row
					target += ' table tr:not(:has(th)):eq(' + data.row + ')';
				} else {
					// Just a page, remove the index too!
					context.modules.toolbar.$toolbar.find( index ).remove();
					$.wikiEditor.modules.toolbar.fn.updateBookletSelection(
						context,
						null,
						context.modules.toolbar.$toolbar.find( target ),
						context.modules.toolbar.$toolbar.find( index )
					);
				}
			} else {
				// Just a section, remove the tab too!
				context.modules.toolbar.$toolbar.find( tab ).remove();
			}
			context.modules.toolbar.$toolbar.find( target ).remove();
			// Hide empty groups
			if ( group ) {
				var $group = context.modules.toolbar.$toolbar.find( group );
				if ( $group.children().length === 0 ) {
					$group.hide();
				}
			}
		}
	}
},
/**
 * Event handlers
 */
evt: {
	resize: function( context, event ) {
		context.$ui.find( '.sections' ).height( context.$ui.find( '.sections .section-visible' ).outerHeight() );
	},
	tocCollapse: function( context, event ) {
		$.wikiEditor.modules.toolbar.evt.resize( context, event );
	},
	tocExpand: function( context, event ) {
		$.wikiEditor.modules.toolbar.evt.resize( context, event );
	}
},
/**
 * Internally used functions
 */
fn: {
	/**
	 * Creates a toolbar module within a wikiEditor
	 *
	 * @param {Object} context Context object of editor to create module in
	 * @param {Object} config Configuration object to create module from
	 */
	create : function( context, config ) {
		if ( '$toolbar' in context.modules.toolbar ) {
			return;
		}
		context.modules.toolbar.$toolbar = $( '<div/>' )
			.addClass( 'wikiEditor-ui-toolbar' )
			.attr( 'id', 'wikiEditor-ui-toolbar' );
		$.wikiEditor.modules.toolbar.fn.build( context, config );
		context.$ui.find( '.wikiEditor-ui-top' ).append( context.modules.toolbar.$toolbar );
	},
	/**
	 * Performs an operation based on parameters
	 *
	 * @param {Object} context
	 * @param {Object} action
	 * @param {Object} source
	 */
	doAction : function( context, action, source ) {
		// Verify that this has been called from a source that's within the toolbar
		// 'trackAction' defined in click tracking
		if ( mw.config.get( 'wgWikiEditorToolbarClickTracking' ) && $.trackAction !== undefined && source.closest( '.wikiEditor-ui-toolbar' ).size() ) {
			// Build a unique id for this action by tracking the parent rel attributes up to the toolbar level
			var rels = [];
			var step = source;
			var i = 0;
			while ( !step.hasClass( 'wikiEditor-ui-toolbar' ) ) {
				if ( i > 25 ) {
					break;
				}
				i++;
				var rel = step.attr( 'rel' );
				if ( rel ) {
					rels.push( step.attr( 'rel' ) );
				}
				step = step.parent();
			}
			rels.reverse();
			var id = rels.join( '.' );
			$.trackAction( id );
		}
		switch ( action.type ) {
			case 'replace':
			case 'encapsulate':
				var parts = {
					'pre' : $.wikiEditor.autoMsg( action.options, 'pre' ),
					'peri' : $.wikiEditor.autoMsg( action.options, 'peri' ),
					'post' : $.wikiEditor.autoMsg( action.options, 'post' )
				};
				var replace = action.type == 'replace';
				if ( 'regex' in action.options && 'regexReplace' in action.options ) {
					var selection = context.$textarea.textSelection( 'getSelection' );
					if ( selection !== '' && selection.match( action.options.regex ) ) {
						parts.peri = selection.replace( action.options.regex,
							action.options.regexReplace );
						parts.pre = parts.post = '';
						replace = true;
					}
				}
				context.$textarea.textSelection(
					'encapsulateSelection',
					$.extend( {}, action.options, parts, { 'replace': replace } )
				);
				if ( context.$iframe !== undefined ) {
					context.$iframe[0].contentWindow.focus();
				}
				break;
			case 'callback':
				if ( typeof action.execute == 'function' ) {
					action.execute( context );
				}
				break;
			case 'dialog':
				context.fn.saveSelection();
				context.$textarea.wikiEditor( 'openDialog', action.module );
				break;
			default: break;
		}
	},
	buildGroup : function( context, id, group ) {
		var $group = $( '<div/>' ).attr( { 'class' : 'group group-' + id, 'rel' : id } );
		var label = $.wikiEditor.autoMsg( group, 'label' );
		if ( label ) {
			$group.append( '<div class="label">' + label + '</div>' );
		}
		var empty = true;
		if ( 'tools' in group ) {
			for ( var tool in group.tools ) {
				tool =  $.wikiEditor.modules.toolbar.fn.buildTool( context, tool, group.tools[tool] );
				if ( tool ) {
					// Consider a group with only hidden tools empty as well
					// .is( ':visible' ) always returns false because tool is not attached to the DOM yet
					empty = empty && tool.css( 'display' ) == 'none';
					$group.append( tool );
				}
			}
		}
		if ( empty ) {
			$group.hide();
		}
		return $group;
	},
	buildTool : function( context, id, tool ) {
		if ( 'filters' in tool ) {
			for ( var i = 0; i < tool.filters.length; i++ ) {
				if ( $( tool.filters[i] ).size() === 0 ) {
					return null;
				}
			}
		}
		var label = $.wikiEditor.autoMsg( tool, 'label' );
		switch ( tool.type ) {
			case 'button':
				var src = $.wikiEditor.autoIcon( tool.icon, $.wikiEditor.imgPath + 'toolbar/' );
				var $button = null;
				if ( 'offset' in tool ) {
					var offsetOrIcon = $.wikiEditor.autoIconOrOffset( tool.icon, tool.offset,
						$.wikiEditor.imgPath + 'toolbar/'
					);
					if ( typeof offsetOrIcon == 'object' ) {
						$button = $( '<a/>' )
							.attr( {
								'href' : '#',
								'alt' : label,
								'title' : label,
								'rel' : id,
								'class' : 'tool tool-button wikiEditor-toolbar-spritedButton'
							} )
							.text( label )
							.css( 'backgroundPosition', offsetOrIcon[0] + 'px ' + offsetOrIcon[1] + 'px' );
					}
				}
				if ( !$button ) {
					$button = $( '<img/>' )
						.attr( {
							'src' : src,
							'width' : 22,
							'height' : 22,
							'alt' : label,
							'title' : label,
							'rel' : id,
							'class' : 'tool tool-button'
						} );
				}
				if ( 'action' in tool ) {
					$button
						.data( 'action', tool.action )
						.data( 'context', context )
						.mousedown( function( e ) {
							context.fn.saveCursorAndScrollTop();
							// No dragging!
							e.preventDefault();
							return false;
						} )
						.click( function( e ) {
							$.wikiEditor.modules.toolbar.fn.doAction(
								$(this).data( 'context' ), $(this).data( 'action' ), $(this)
							);
							e.preventDefault();
							return false;
						} );
				}
				return $button;
			case 'select':
				var $select = $( '<div/>' )
					.attr( { 'rel' : id, 'class' : 'tool tool-select' } );
				var $options = $( '<div/>' ).addClass( 'options' );
				if ( 'list' in tool ) {
					for ( var option in tool.list ) {
						var optionLabel = $.wikiEditor.autoMsg( tool.list[option], 'label' );
						$options.append(
							$( '<a/>' )
								.data( 'action', tool.list[option].action )
								.data( 'context', context )
								.mousedown( function( e ) {
									context.fn.saveCursorAndScrollTop();
									// No dragging!
									e.preventDefault();
									return false;
								} )
								.click( function( e ) {
									$.wikiEditor.modules.toolbar.fn.doAction(
										$(this).data( 'context' ), $(this).data( 'action' ), $(this)
									);
									// Hide the dropdown
									// Sanity check: if this somehow gets called while the dropdown
									// is hidden, don't show it
									if ( $(this).parent().is( ':visible' ) ) {
										$(this).parent().animate( { 'opacity': 'toggle' }, 'fast' );
									}
									e.preventDefault();
									return false;
								} )
								.text( optionLabel )
								.addClass( 'option' )
								.attr( { 'rel': option, 'href': '#' } )
						);
					}
				}
				$select.append( $( '<div/>' ).addClass( 'menu' ).append( $options ) );
				$select.append( $( '<a/>' )
						.addClass( 'label' )
						.text( label )
						.data( 'options', $options )
						.attr( 'href', '#' )
						.mousedown( function( e ) {
							// No dragging!
							e.preventDefault();
							return false;
						} )
						.click( function( e ) {
							$(this).data( 'options' ).animate( { 'opacity': 'toggle' }, 'fast' );
							e.preventDefault();
							return false;
						} )
				);
				return $select;
			default:
				return null;
		}
	},
	buildBookmark : function( context, id, page ) {
		var label = $.wikiEditor.autoMsg( page, 'label' );
		return $( '<div/>' )
			.text( label )
			.attr( 'rel', id )
			.data( 'context', context )
			.mousedown( function( e ) {
				context.fn.saveCursorAndScrollTop();
				// No dragging!
				e.preventDefault();
				return false;
			} )
			.click( function( event ) {
				$(this).parent().parent().find( '.page' ).hide();
				$(this).parent().parent().find( '.page-' + $(this).attr( 'rel' ) ).show();
				$(this).siblings().removeClass( 'current' );
				$(this).addClass( 'current' );
				var section = $(this).parent().parent().attr( 'rel' );
				$.cookie(
					'wikiEditor-' + $(this).data( 'context' ).instance + '-booklet-' + section + '-page',
					$(this).attr( 'rel' ),
					{ expires: 30, path: '/' }
				);
				// Click tracking
				if ( mw.config.get( 'wgWikiEditorToolbarClickTracking' ) && $.trackAction !== undefined ) {
					$.trackAction(section + '.' + $(this).attr('rel'));
				}
				context.fn.restoreCursorAndScrollTop();
				// No dragging!
				event.preventDefault();
				return false;
			} );
	},
	buildPage : function( context, id, page ) {
		var html;
		var $page = $( '<div/>' ).attr( {
			'class' : 'page page-' + id,
			'rel' : id
		} );
		switch ( page.layout ) {
			case 'table':
				$page.addClass( 'page-table' );
				html =
					'<table cellpadding=0 cellspacing=0 ' + 'border=0 width="100%" class="table table-' + id + '">';
				if ( 'headings' in page ) {
					html += $.wikiEditor.modules.toolbar.fn.buildHeading( context, page.headings );
				}
				if ( 'rows' in page ) {
					for ( var i = 0; i < page.rows.length; i++ ) {
						html += $.wikiEditor.modules.toolbar.fn.buildRow( context, page.rows[i] );
					}
				}
				$page.html( html + '</table>');
				break;
			case 'characters':
				$page.addClass( 'page-characters' );
				var $characters = $( '<div/>' ).data( 'context', context ).data( 'actions', {} );
				var actions = $characters.data( 'actions' );
				if ( 'language' in page ) {
					$characters.attr( 'lang', page.language );
				}
				if ( 'direction' in page ) {
					$characters.attr( 'dir', page.direction );
				} else {
					// By default it should be explicit ltr for all scripts.
					// Without this some conjoined ltr characters look
					// weird in rtl wikis.
					$characters.attr( 'dir', 'ltr' );
				}
				if ( 'characters' in page ) {
					html = '';
					for ( var i = 0; i < page.characters.length; i++ ) {
						html += $.wikiEditor.modules.toolbar.fn.buildCharacter( page.characters[i], actions );
					}
					$characters
						.html( html )
						.children()
						.mousedown( function( e ) {
							context.fn.saveCursorAndScrollTop();
							// No dragging!
							e.preventDefault();
							return false;
						} )
						.click( function( e ) {
							$.wikiEditor.modules.toolbar.fn.doAction(
								$(this).parent().data( 'context' ),
								$(this).parent().data( 'actions' )[$(this).attr( 'rel' )],
								$(this)
							);
							e.preventDefault();
							return false;
						} );
				}
				$page.append( $characters );
				break;
		}
		return $page;
	},
	buildHeading : function( context, headings ) {
		var html = '<tr>';
		for ( var i = 0; i< headings.length; i++ ) {
			html += '<th>' + $.wikiEditor.autoMsg( headings[i], ['html', 'text'] ) + '</th>';
		}
		return html + '</tr>';
	},
	buildRow : function( context, row ) {
		var html = '<tr>';
		for ( var cell in row ) {
			html += '<td class="cell cell-' + cell + '" valign="top"><span>' +
				$.wikiEditor.autoMsg( row[cell], ['html', 'text'] ) + '</span></td>';
		}
		return html + '</tr>';
	},
	buildCharacter : function( character, actions ) {
		if ( typeof character == 'string' ) {
			character = {
				'label' : character,
				'action' : {
					'type' : 'replace',
					'options' : {
						'peri' : character,
						'selectPeri': false
					}
				}
			};
		// In some cases the label for the character isn't the same as the
		// character that gets inserted (e.g. Hebrew vowels)
		} else if ( character && 0 in character && 1 in character ) {
			character = {
				'label' : character[0],
				'action' : {
					'type' : 'replace',
					'options' : {
						'peri' : character[1],
						'selectPeri': false
					}
				}
			};
		}
		if ( character && 'action' in character && 'label' in character ) {
			actions[character.label] = character.action;
			if ( character.titleMsg !== undefined ) {
				return mw.html.element(
					'span',
					{ 'rel': character.label, 'title': mw.msg( character.titleMsg ) },
					character.label
				);
			} else {
				return mw.html.element( 'span', { 'rel': character.label }, character.label );
			}
		}
		mw.log( "A character for the toolbar was undefined. This is not supposed to happen. Double check the config." );
		return ""; // bug 31673; also an additional fix for bug 24208...
	},
	buildTab : function( context, id, section ) {
		var selected = $.cookie( 'wikiEditor-' + context.instance + '-toolbar-section' );
		// Re-save cookie
		if ( selected !== null ) {
			$.cookie( 'wikiEditor-' + context.instance + '-toolbar-section', selected, { expires: 30, path: '/' } );
		}
		var $link =
			$( '<a/>' )
				.addClass( selected == id ? 'current' : null )
				.attr( 'href', '#' )
				.text( $.wikiEditor.autoMsg( section, 'label' ) )
				.data( 'context', context )
				.mouseup( function( e ) {
					$(this).blur();
				} )
				.mousedown( function( e ) {
					// No dragging!
					e.preventDefault();
					return false;
				} )
				.click( function( e ) {
					var $sections = $(this).data( 'context' ).$ui.find( '.sections' );
					var $section =
						$(this).data( 'context' ).$ui.find( '.section-' + $(this).parent().attr( 'rel' ) );
					var show = $section.css( 'display' ) == 'none';
					var $previousSections = $section.parent().find( '.section-visible' );
					$previousSections.css( 'position', 'absolute' );
					$previousSections.removeClass( 'section-visible' );
					$previousSections.fadeOut( 'fast', function() { $(this).css( 'position', 'static' ); } );
					$(this).parent().parent().find( 'a' ).removeClass( 'current' );
					$sections.css( 'overflow', 'hidden' );
					var animate = function( $that ) {
						$sections
						.css( 'display', 'block' )
						.animate( { 'height': $section.outerHeight() }, $section.outerHeight() * 2, function() {
							$that.css( 'overflow', 'visible' ).css( 'height', 'auto' );
							context.fn.trigger( 'resize' );
						} );
					};
					if ( show ) {
						$section.addClass( 'section-visible' );
						$section.fadeIn( 'fast' );
						if ( $section.hasClass( 'loading' ) ) {
							// Loading of this section was deferred, load it now
							var $that = $(this);
							$that.addClass( 'current loading' );
							setTimeout( function() {
								$section.trigger( 'loadSection' );
								animate( $that );
								$that.removeClass( 'loading' );
							}, 1000 );
						} else {
							animate( $(this) );
							$(this).addClass( 'current' );
						}
					} else {
						$sections
							.css( 'height', $section.outerHeight() )
							.animate( { 'height': 'hide' }, $section.outerHeight() * 2, function() {
								$(this).css( { 'overflow': 'visible', 'height': 0 } );
								context.fn.trigger( 'resize' );
							} );
					}
					// Click tracking
					if ( mw.config.get( 'wgWikiEditorToolbarClickTracking' ) && $.trackAction !== undefined ) {
						$.trackAction( $section.attr('rel') + '.' + ( show ? 'show': 'hide' )  );
					}
					// Save the currently visible section
					$.cookie(
						'wikiEditor-' + $(this).data( 'context' ).instance + '-toolbar-section',
						show ? $section.attr( 'rel' ) : null,
						{ expires: 30, path: '/' }
					);
					e.preventDefault();
					return false;
				});
		return $( '<span/>' )
			.attr({
				'class' : 'tab tab-' + id,
				'rel' : id
			})
			.append( $link );
	},
	buildSection: function( context, id, section ) {
		var $section = $( '<div/>' ).attr( { 'class': section.type + ' section section-' + id, 'rel': id } );
		var selected = $.cookie( 'wikiEditor-' + context.instance + '-toolbar-section' );
		var show = selected == id;

		if ( section.deferLoad !== undefined && section.deferLoad && id !== 'main' && !show ) {
			// This class shows the spinner and serves as a marker for the click handler in buildTab()
			$section.addClass( 'loading' ).append( $( '<div/>' ).addClass( 'spinner' ) );
			$section.bind( 'loadSection', function() {
				$.wikiEditor.modules.toolbar.fn.reallyBuildSection( context, id, section, $section );
				$section.removeClass( 'loading' );
			} );
		} else {
			$.wikiEditor.modules.toolbar.fn.reallyBuildSection( context, id, section, $section );
		}

		// Show or hide section
		if ( id !== 'main' ) {
			$section.css( 'display', show ? 'block' : 'none' );
			if ( show ) {
				$section.addClass( 'section-visible' );
			}
		}
		return $section;
	},
	reallyBuildSection: function( context, id, section, $section ) {
		context.$textarea.trigger( 'wikiEditor-toolbar-buildSection-' + $section.attr( 'rel' ), [section] );
		switch ( section.type ) {
			case 'toolbar':
				if ( 'groups' in section ) {
					for ( var group in section.groups ) {
						$section.append(
							$.wikiEditor.modules.toolbar.fn.buildGroup( context, group, section.groups[group] )
						);
					}
				}
				break;
			case 'booklet':
				var $pages = $( '<div/>' ).addClass( 'pages' );
				var $index = $( '<div/>' ).addClass( 'index' );
				if ( 'pages' in section ) {
					for ( var page in section.pages ) {
						$pages.append(
							$.wikiEditor.modules.toolbar.fn.buildPage( context, page, section.pages[page] )
						);
						$index.append(
							$.wikiEditor.modules.toolbar.fn.buildBookmark( context, page, section.pages[page] )
						);
					}
				}
				$section.append( $index ).append( $pages );
				$.wikiEditor.modules.toolbar.fn.updateBookletSelection( context, id, $pages, $index );
				break;
		}
	},
	updateBookletSelection : function( context, id, $pages, $index ) {
		var cookie = 'wikiEditor-' + context.instance + '-booklet-' + id + '-page';
		var selected = $.cookie( cookie );
		// Re-save cookie
		if ( selected != null ) {
			$.cookie( cookie, selected, { expires: 30, path: '/' } );
		}
		var $selectedIndex = $index.find( '*[rel="' + selected + '"]' );
		if ( $selectedIndex.size() === 0 ) {
			$selectedIndex = $index.children().eq( 0 );
			selected = $selectedIndex.attr( 'rel' );
			$.cookie( cookie, selected, { expires: 30, path: '/' } );
		}
		$pages.children().hide();
		$pages.find( '*[rel="' + selected + '"]' ).show();
		$index.children().removeClass( 'current' );
		$selectedIndex.addClass( 'current' );
	},
	build : function( context, config ) {
		var $tabs = $( '<div/>' ).addClass( 'tabs' ).appendTo( context.modules.toolbar.$toolbar );
		var $sections = $( '<div/>' ).addClass( 'sections' ).appendTo( context.modules.toolbar.$toolbar );
		context.modules.toolbar.$toolbar.append( $( '<div/>' ).css( 'clear', 'both' ) );
		var sectionQueue = [];
		for ( var section in config ) {
			if ( section == 'main' ) {
				context.modules.toolbar.$toolbar.prepend(
					$.wikiEditor.modules.toolbar.fn.buildSection( context, section, config[section] )
				);
			} else {
				sectionQueue.push( {
					'$sections' : $sections,
					'context' : context,
					'id' : section,
					'config' : config[section]
				} );
				$tabs.append( $.wikiEditor.modules.toolbar.fn.buildTab( context, section, config[section] ) );
			}
		}
		$.eachAsync( sectionQueue, {
			'bulk' : 0,
			'end' : function() {
				// HACK: Opera doesn't seem to want to redraw after these bits
				// are added to the DOM, so we can just FORCE it!
				var oldValue = $( 'body' ).css( 'position' );
				$( 'body' ).css( 'position', 'static' );
				$( 'body' ).css( 'position', oldValue );

				context.$textarea.trigger( 'wikiEditor-toolbar-doneInitialSections' );
			},
			'loop' : function( i, s ) {
				s.$sections.append( $.wikiEditor.modules.toolbar.fn.buildSection( s.context, s.id, s.config ) );
				var $section = s.$sections.find( '.section:visible' );
				if ( $section.size() ) {
					$sections.animate( { 'height': $section.outerHeight() }, $section.outerHeight() * 2, function( ) {
						context.fn.trigger( 'resize' );
					} );
				}
			}
		} );
	}
}

}; } )( mediaWiki, jQuery );