/wp-content/themes/twentytwelve/functions.php
PHP | 450 lines | 220 code | 52 blank | 178 comment | 37 complexity | 675bcc20a3c59ae134b47d25310ee277 MD5 | raw file
Possible License(s): AGPL-1.0, LGPL-2.1, GPL-2.0
- <?php
- /**
- * Twenty Twelve functions and definitions.
- *
- * Sets up the theme and provides some helper functions, which are used
- * in the theme as custom template tags. Others are attached to action and
- * filter hooks in WordPress to change core functionality.
- *
- * When using a child theme (see http://codex.wordpress.org/Theme_Development and
- * http://codex.wordpress.org/Child_Themes), you can override certain functions
- * (those wrapped in a function_exists() call) by defining them first in your child theme's
- * functions.php file. The child theme's functions.php file is included before the parent
- * theme's file, so the child theme functions would be used.
- *
- * Functions that are not pluggable (not wrapped in function_exists()) are instead attached
- * to a filter or action hook.
- *
- * For more information on hooks, actions, and filters, see http://codex.wordpress.org/Plugin_API.
- *
- * @package WordPress
- * @subpackage Twenty_Twelve
- * @since Twenty Twelve 1.0
- */
- /**
- * Sets up the content width value based on the theme's design and stylesheet.
- */
- if ( ! isset( $content_width ) )
- $content_width = 625;
- /**
- * Sets up theme defaults and registers the various WordPress features that
- * Twenty Twelve supports.
- *
- * @uses load_theme_textdomain() For translation/localization support.
- * @uses add_editor_style() To add a Visual Editor stylesheet.
- * @uses add_theme_support() To add support for post thumbnails, automatic feed links,
- * custom background, and post formats.
- * @uses register_nav_menu() To add support for navigation menus.
- * @uses set_post_thumbnail_size() To set a custom post thumbnail size.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_setup() {
- /*
- * Makes Twenty Twelve available for translation.
- *
- * Translations can be added to the /languages/ directory.
- * If you're building a theme based on Twenty Twelve, use a find and replace
- * to change 'twentytwelve' to the name of your theme in all the template files.
- */
- load_theme_textdomain( 'twentytwelve', get_template_directory() . '/languages' );
- // This theme styles the visual editor with editor-style.css to match the theme style.
- add_editor_style();
- // Adds RSS feed links to <head> for posts and comments.
- add_theme_support( 'automatic-feed-links' );
- // This theme supports a variety of post formats.
- add_theme_support( 'post-formats', array( 'aside', 'image', 'link', 'quote', 'status' ) );
- // This theme uses wp_nav_menu() in one location.
- register_nav_menu( 'primary', __( 'Primary Menu', 'twentytwelve' ) );
- /*
- * This theme supports custom background color and image, and here
- * we also set up the default background color.
- */
- add_theme_support( 'custom-background', array(
- 'default-color' => 'e6e6e6',
- ) );
- // This theme uses a custom image size for featured images, displayed on "standard" posts.
- add_theme_support( 'post-thumbnails' );
- set_post_thumbnail_size( 624, 9999 ); // Unlimited height, soft crop
- }
- add_action( 'after_setup_theme', 'twentytwelve_setup' );
- /**
- * Adds support for a custom header image.
- */
- require( get_template_directory() . '/inc/custom-header.php' );
- /**
- * Enqueues scripts and styles for front-end.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_scripts_styles() {
- global $wp_styles;
- /*
- * Adds JavaScript to pages with the comment form to support
- * sites with threaded comments (when in use).
- */
- if ( is_singular() && comments_open() && get_option( 'thread_comments' ) )
- wp_enqueue_script( 'comment-reply' );
- /*
- * Adds JavaScript for handling the navigation menu hide-and-show behavior.
- */
- wp_enqueue_script( 'twentytwelve-navigation', get_template_directory_uri() . '/js/navigation.js', array(), '1.0', true );
- /*
- * Loads our special font CSS file.
- *
- * The use of Open Sans by default is localized. For languages that use
- * characters not supported by the font, the font can be disabled.
- *
- * To disable in a child theme, use wp_dequeue_style()
- * function mytheme_dequeue_fonts() {
- * wp_dequeue_style( 'twentytwelve-fonts' );
- * }
- * add_action( 'wp_enqueue_scripts', 'mytheme_dequeue_fonts', 11 );
- */
- /* translators: If there are characters in your language that are not supported
- by Open Sans, translate this to 'off'. Do not translate into your own language. */
- if ( 'off' !== _x( 'on', 'Open Sans font: on or off', 'twentytwelve' ) ) {
- $subsets = 'latin,latin-ext';
- /* translators: To add an additional Open Sans character subset specific to your language, translate
- this to 'greek', 'cyrillic' or 'vietnamese'. Do not translate into your own language. */
- $subset = _x( 'no-subset', 'Open Sans font: add new subset (greek, cyrillic, vietnamese)', 'twentytwelve' );
- if ( 'cyrillic' == $subset )
- $subsets .= ',cyrillic,cyrillic-ext';
- elseif ( 'greek' == $subset )
- $subsets .= ',greek,greek-ext';
- elseif ( 'vietnamese' == $subset )
- $subsets .= ',vietnamese';
- $protocol = is_ssl() ? 'https' : 'http';
- $query_args = array(
- 'family' => 'Open+Sans:400italic,700italic,400,700',
- 'subset' => $subsets,
- );
- wp_enqueue_style( 'twentytwelve-fonts', add_query_arg( $query_args, "$protocol://fonts.googleapis.com/css" ), array(), null );
- }
- /*
- * Loads our main stylesheet.
- */
- wp_enqueue_style( 'twentytwelve-style', get_stylesheet_uri() );
- /*
- * Loads the Internet Explorer specific stylesheet.
- */
- wp_enqueue_style( 'twentytwelve-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentytwelve-style' ), '20121010' );
- $wp_styles->add_data( 'twentytwelve-ie', 'conditional', 'lt IE 9' );
- }
- add_action( 'wp_enqueue_scripts', 'twentytwelve_scripts_styles' );
- /**
- * Creates a nicely formatted and more specific title element text
- * for output in head of document, based on current view.
- *
- * @since Twenty Twelve 1.0
- *
- * @param string $title Default title text for current view.
- * @param string $sep Optional separator.
- * @return string Filtered title.
- */
- function twentytwelve_wp_title( $title, $sep ) {
- global $paged, $page;
- if ( is_feed() )
- return $title;
- // Add the site name.
- $title .= get_bloginfo( 'name' );
- // Add the site description for the home/front page.
- $site_description = get_bloginfo( 'description', 'display' );
- if ( $site_description && ( is_home() || is_front_page() ) )
- $title = "$title $sep $site_description";
- // Add a page number if necessary.
- if ( $paged >= 2 || $page >= 2 )
- $title = "$title $sep " . sprintf( __( 'Page %s', 'twentytwelve' ), max( $paged, $page ) );
- return $title;
- }
- add_filter( 'wp_title', 'twentytwelve_wp_title', 10, 2 );
- /**
- * Makes our wp_nav_menu() fallback -- wp_page_menu() -- show a home link.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_page_menu_args( $args ) {
- if ( ! isset( $args['show_home'] ) )
- $args['show_home'] = true;
- return $args;
- }
- add_filter( 'wp_page_menu_args', 'twentytwelve_page_menu_args' );
- /**
- * Registers our main widget area and the front page widget areas.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_widgets_init() {
- register_sidebar( array(
- 'name' => __( 'Main Sidebar', 'twentytwelve' ),
- 'id' => 'sidebar-1',
- 'description' => __( 'Appears on posts and pages except the optional Front Page template, which has its own widgets', 'twentytwelve' ),
- 'before_widget' => '<aside id="%1$s" class="widget %2$s">',
- 'after_widget' => '</aside>',
- 'before_title' => '<h3 class="widget-title">',
- 'after_title' => '</h3>',
- ) );
- register_sidebar( array(
- 'name' => __( 'First Front Page Widget Area', 'twentytwelve' ),
- 'id' => 'sidebar-2',
- 'description' => __( 'Appears when using the optional Front Page template with a page set as Static Front Page', 'twentytwelve' ),
- 'before_widget' => '<aside id="%1$s" class="widget %2$s">',
- 'after_widget' => '</aside>',
- 'before_title' => '<h3 class="widget-title">',
- 'after_title' => '</h3>',
- ) );
- register_sidebar( array(
- 'name' => __( 'Second Front Page Widget Area', 'twentytwelve' ),
- 'id' => 'sidebar-3',
- 'description' => __( 'Appears when using the optional Front Page template with a page set as Static Front Page', 'twentytwelve' ),
- 'before_widget' => '<aside id="%1$s" class="widget %2$s">',
- 'after_widget' => '</aside>',
- 'before_title' => '<h3 class="widget-title">',
- 'after_title' => '</h3>',
- ) );
- }
- add_action( 'widgets_init', 'twentytwelve_widgets_init' );
- if ( ! function_exists( 'twentytwelve_content_nav' ) ) :
- /**
- * Displays navigation to next/previous pages when applicable.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_content_nav( $html_id ) {
- global $wp_query;
- $html_id = esc_attr( $html_id );
- if ( $wp_query->max_num_pages > 1 ) : ?>
- <nav id="<?php echo $html_id; ?>" class="navigation" role="navigation">
- <h3 class="assistive-text"><?php _e( 'Post navigation', 'twentytwelve' ); ?></h3>
- <div class="nav-previous alignleft"><?php next_posts_link( __( '<span class="meta-nav">←</span> Older posts', 'twentytwelve' ) ); ?></div>
- <div class="nav-next alignright"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'twentytwelve' ) ); ?></div>
- </nav><!-- #<?php echo $html_id; ?> .navigation -->
- <?php endif;
- }
- endif;
- if ( ! function_exists( 'twentytwelve_comment' ) ) :
- /**
- * Template for comments and pingbacks.
- *
- * To override this walker in a child theme without modifying the comments template
- * simply create your own twentytwelve_comment(), and that function will be used instead.
- *
- * Used as a callback by wp_list_comments() for displaying the comments.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_comment( $comment, $args, $depth ) {
- $GLOBALS['comment'] = $comment;
- switch ( $comment->comment_type ) :
- case 'pingback' :
- case 'trackback' :
- // Display trackbacks differently than normal comments.
- ?>
- <li <?php comment_class(); ?> id="comment-<?php comment_ID(); ?>">
- <p><?php _e( 'Pingback:', 'twentytwelve' ); ?> <?php comment_author_link(); ?> <?php edit_comment_link( __( '(Edit)', 'twentytwelve' ), '<span class="edit-link">', '</span>' ); ?></p>
- <?php
- break;
- default :
- // Proceed with normal comments.
- global $post;
- ?>
- <li <?php comment_class(); ?> id="li-comment-<?php comment_ID(); ?>">
- <article id="comment-<?php comment_ID(); ?>" class="comment">
- <header class="comment-meta comment-author vcard">
- <?php
- echo get_avatar( $comment, 44 );
- printf( '<cite class="fn">%1$s %2$s</cite>',
- get_comment_author_link(),
- // If current post author is also comment author, make it known visually.
- ( $comment->user_id === $post->post_author ) ? '<span> ' . __( 'Post author', 'twentytwelve' ) . '</span>' : ''
- );
- printf( '<a href="%1$s"><time datetime="%2$s">%3$s</time></a>',
- esc_url( get_comment_link( $comment->comment_ID ) ),
- get_comment_time( 'c' ),
- /* translators: 1: date, 2: time */
- sprintf( __( '%1$s at %2$s', 'twentytwelve' ), get_comment_date(), get_comment_time() )
- );
- ?>
- </header><!-- .comment-meta -->
- <?php if ( '0' == $comment->comment_approved ) : ?>
- <p class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.', 'twentytwelve' ); ?></p>
- <?php endif; ?>
- <section class="comment-content comment">
- <?php comment_text(); ?>
- <?php edit_comment_link( __( 'Edit', 'twentytwelve' ), '<p class="edit-link">', '</p>' ); ?>
- </section><!-- .comment-content -->
- <div class="reply">
- <?php comment_reply_link( array_merge( $args, array( 'reply_text' => __( 'Reply', 'twentytwelve' ), 'after' => ' <span>↓</span>', 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
- </div><!-- .reply -->
- </article><!-- #comment-## -->
- <?php
- break;
- endswitch; // end comment_type check
- }
- endif;
- if ( ! function_exists( 'twentytwelve_entry_meta' ) ) :
- /**
- * Prints HTML with meta information for current post: categories, tags, permalink, author, and date.
- *
- * Create your own twentytwelve_entry_meta() to override in a child theme.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_entry_meta() {
- // Translators: used between list items, there is a space after the comma.
- $categories_list = get_the_category_list( __( ', ', 'twentytwelve' ) );
- // Translators: used between list items, there is a space after the comma.
- $tag_list = get_the_tag_list( '', __( ', ', 'twentytwelve' ) );
- $date = sprintf( '<a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date" datetime="%3$s">%4$s</time></a>',
- esc_url( get_permalink() ),
- esc_attr( get_the_time() ),
- esc_attr( get_the_date( 'c' ) ),
- esc_html( get_the_date() )
- );
- $author = sprintf( '<span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s" rel="author">%3$s</a></span>',
- esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
- esc_attr( sprintf( __( 'View all posts by %s', 'twentytwelve' ), get_the_author() ) ),
- get_the_author()
- );
- // Translators: 1 is category, 2 is tag, 3 is the date and 4 is the author's name.
- if ( $tag_list ) {
- $utility_text = __( 'This entry was posted in %1$s and tagged %2$s on %3$s<span class="by-author"> by %4$s</span>.', 'twentytwelve' );
- } elseif ( $categories_list ) {
- $utility_text = __( 'This entry was posted in %1$s on %3$s<span class="by-author"> by %4$s</span>.', 'twentytwelve' );
- } else {
- $utility_text = __( 'This entry was posted on %3$s<span class="by-author"> by %4$s</span>.', 'twentytwelve' );
- }
- printf(
- $utility_text,
- $categories_list,
- $tag_list,
- $date,
- $author
- );
- }
- endif;
- /**
- * Extends the default WordPress body class to denote:
- * 1. Using a full-width layout, when no active widgets in the sidebar
- * or full-width template.
- * 2. Front Page template: thumbnail in use and number of sidebars for
- * widget areas.
- * 3. White or empty background color to change the layout and spacing.
- * 4. Custom fonts enabled.
- * 5. Single or multiple authors.
- *
- * @since Twenty Twelve 1.0
- *
- * @param array Existing class values.
- * @return array Filtered class values.
- */
- function twentytwelve_body_class( $classes ) {
- $background_color = get_background_color();
- if ( ! is_active_sidebar( 'sidebar-1' ) || is_page_template( 'page-templates/full-width.php' ) )
- $classes[] = 'full-width';
- if ( is_page_template( 'page-templates/front-page.php' ) ) {
- $classes[] = 'template-front-page';
- if ( has_post_thumbnail() )
- $classes[] = 'has-post-thumbnail';
- if ( is_active_sidebar( 'sidebar-2' ) && is_active_sidebar( 'sidebar-3' ) )
- $classes[] = 'two-sidebars';
- }
- if ( empty( $background_color ) )
- $classes[] = 'custom-background-empty';
- elseif ( in_array( $background_color, array( 'fff', 'ffffff' ) ) )
- $classes[] = 'custom-background-white';
- // Enable custom font class only if the font CSS is queued to load.
- if ( wp_style_is( 'twentytwelve-fonts', 'queue' ) )
- $classes[] = 'custom-font-enabled';
- if ( ! is_multi_author() )
- $classes[] = 'single-author';
- return $classes;
- }
- add_filter( 'body_class', 'twentytwelve_body_class' );
- /**
- * Adjusts content_width value for full-width and single image attachment
- * templates, and when there are no active widgets in the sidebar.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_content_width() {
- if ( is_page_template( 'page-templates/full-width.php' ) || is_attachment() || ! is_active_sidebar( 'sidebar-1' ) ) {
- global $content_width;
- $content_width = 960;
- }
- }
- add_action( 'template_redirect', 'twentytwelve_content_width' );
- /**
- * Add postMessage support for site title and description for the Theme Customizer.
- *
- * @since Twenty Twelve 1.0
- *
- * @param WP_Customize_Manager $wp_customize Theme Customizer object.
- * @return void
- */
- function twentytwelve_customize_register( $wp_customize ) {
- $wp_customize->get_setting( 'blogname' )->transport = 'postMessage';
- $wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage';
- }
- add_action( 'customize_register', 'twentytwelve_customize_register' );
- /**
- * Binds JS handlers to make Theme Customizer preview reload changes asynchronously.
- *
- * @since Twenty Twelve 1.0
- */
- function twentytwelve_customize_preview_js() {
- wp_enqueue_script( 'twentytwelve-customizer', get_template_directory_uri() . '/js/theme-customizer.js', array( 'customize-preview' ), '20120827', true );
- }
- add_action( 'customize_preview_init', 'twentytwelve_customize_preview_js' );