* add_action( 'after_setup_theme', 'my_child_theme_setup' );
* function my_child_theme_setup() {
* // We are providing our own filter for excerpt_length (or using the unfiltered value).
* remove_filter( 'excerpt_length', 'twentyeleven_excerpt_length' );
* ...
* }
*
*
* For more information on hooks, actions, and filters, see https://developer.wordpress.org/plugins/.
*
* @package WordPress
* @subpackage Twenty_Eleven
* @since Twenty Eleven 1.0
*/
// Set the content width based on the theme's design and stylesheet.
if ( ! isset( $content_width ) ) {
$content_width = 584;
}
/*
* Tell WordPress to run twentyeleven_setup() when the 'after_setup_theme' hook is run.
*/
add_action( 'after_setup_theme', 'twentyeleven_setup' );
if ( ! function_exists( 'twentyeleven_setup' ) ):
/**
* Set up theme defaults and registers support for various WordPress features.
*
* Note that this function is hooked into the after_setup_theme hook, which runs
* before the init hook. The init hook is too late for some features, such as indicating
* support post thumbnails.
*
* To override twentyeleven_setup() in a child theme, add your own twentyeleven_setup to your child theme's
* functions.php file.
*
* @uses load_theme_textdomain() For translation/localization support.
* @uses add_editor_style() To style the visual editor.
* @uses add_theme_support() To add support for post thumbnails, automatic feed links, custom headers
* and backgrounds, and post formats.
* @uses register_nav_menus() To add support for navigation menus.
* @uses register_default_headers() To register the default custom header images provided with the theme.
* @uses set_post_thumbnail_size() To set a custom post thumbnail size.
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_setup() {
/*
* Make Twenty Eleven available for translation.
* Translations can be added to the /languages/ directory.
* If you're building a theme based on Twenty Eleven, use
* a find and replace to change 'twentyeleven' to the name
* of your theme in all the template files.
*/
load_theme_textdomain( 'twentyeleven', get_template_directory() . '/languages' );
// This theme styles the visual editor with editor-style.css to match the theme style.
add_editor_style();
// Load regular editor styles into the new block-based editor.
add_theme_support( 'editor-styles' );
// Load default block styles.
add_theme_support( 'wp-block-styles' );
// Add support for responsive embeds.
add_theme_support( 'responsive-embeds' );
// Add support for custom color scheme.
add_theme_support( 'editor-color-palette', array(
array(
'name' => __( 'Blue', 'twentyeleven' ),
'slug' => 'blue',
'color' => '#1982d1',
),
array(
'name' => __( 'Black', 'twentyeleven' ),
'slug' => 'black',
'color' => '#000',
),
array(
'name' => __( 'Dark Gray', 'twentyeleven' ),
'slug' => 'dark-gray',
'color' => '#373737',
),
array(
'name' => __( 'Medium Gray', 'twentyeleven' ),
'slug' => 'medium-gray',
'color' => '#666',
),
array(
'name' => __( 'Light Gray', 'twentyeleven' ),
'slug' => 'light-gray',
'color' => '#e2e2e2',
),
array(
'name' => __( 'White', 'twentyeleven' ),
'slug' => 'white',
'color' => '#fff',
)
) );
// Load up our theme options page and related code.
require( get_template_directory() . '/inc/theme-options.php' );
// Grab Twenty Eleven's Ephemera widget.
require get_template_directory() . '/inc/widgets.php';
// Load block patterns.
require get_template_directory() . '/inc/block-patterns.php';
// Add default posts and comments RSS feed links to .
add_theme_support( 'automatic-feed-links' );
// This theme uses wp_nav_menu() in one location.
register_nav_menu( 'primary', __( 'Primary Menu', 'twentyeleven' ) );
// Add support for a variety of post formats.
add_theme_support( 'post-formats', array( 'aside', 'link', 'gallery', 'status', 'quote', 'image' ) );
$theme_options = twentyeleven_get_theme_options();
if ( 'dark' === $theme_options['color_scheme'] ) {
$default_background_color = '1d1d1d';
} else {
$default_background_color = 'e2e2e2';
}
// Add support for custom backgrounds.
add_theme_support( 'custom-background', array(
/*
* Let WordPress know what our default background color is.
* This is dependent on our current color scheme.
*/
'default-color' => $default_background_color,
) );
// This theme uses Featured Images (also known as post thumbnails) for per-post/per-page Custom Header images
add_theme_support( 'post-thumbnails' );
// Add support for custom headers.
$custom_header_support = array(
// The default header text color.
'default-text-color' => '000',
// The height and width of our custom header.
/**
* Filters the Twenty Eleven default header image width.
*
* @since Twenty Eleven 1.0
*
* @param int The default header image width in pixels. Default 1000.
*/
'width' => apply_filters( 'twentyeleven_header_image_width', 1000 ),
/**
* Filters the Twenty Eleven default header image height.
*
* @since Twenty Eleven 1.0
*
* @param int The default header image height in pixels. Default 288.
*/
'height' => apply_filters( 'twentyeleven_header_image_height', 288 ),
// Support flexible heights.
'flex-height' => true,
// Random image rotation by default.
'random-default' => true,
// Callback for styling the header.
'wp-head-callback' => 'twentyeleven_header_style',
// Callback for styling the header preview in the admin.
'admin-head-callback' => 'twentyeleven_admin_header_style',
// Callback used to display the header preview in the admin.
'admin-preview-callback' => 'twentyeleven_admin_header_image',
);
add_theme_support( 'custom-header', $custom_header_support );
if ( ! function_exists( 'get_custom_header' ) ) {
// This is all for compatibility with versions of WordPress prior to 3.4.
define( 'HEADER_TEXTCOLOR', $custom_header_support['default-text-color'] );
define( 'HEADER_IMAGE', '' );
define( 'HEADER_IMAGE_WIDTH', $custom_header_support['width'] );
define( 'HEADER_IMAGE_HEIGHT', $custom_header_support['height'] );
add_custom_image_header( $custom_header_support['wp-head-callback'], $custom_header_support['admin-head-callback'], $custom_header_support['admin-preview-callback'] );
add_custom_background();
}
/*
* We'll be using post thumbnails for custom header images on posts and pages.
* We want them to be the size of the header image that we just defined.
* Larger images will be auto-cropped to fit, smaller ones will be ignored. See header.php.
*/
set_post_thumbnail_size( $custom_header_support['width'], $custom_header_support['height'], true );
/*
* Add Twenty Eleven's custom image sizes.
* Used for large feature (header) images.
*/
add_image_size( 'large-feature', $custom_header_support['width'], $custom_header_support['height'], true );
// Used for featured posts if a large-feature doesn't exist.
add_image_size( 'small-feature', 500, 300 );
// Default custom headers packaged with the theme. %s is a placeholder for the theme template directory URI.
register_default_headers( array(
'wheel' => array(
'url' => '%s/images/headers/wheel.jpg',
'thumbnail_url' => '%s/images/headers/wheel-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Wheel', 'twentyeleven' )
),
'shore' => array(
'url' => '%s/images/headers/shore.jpg',
'thumbnail_url' => '%s/images/headers/shore-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Shore', 'twentyeleven' )
),
'trolley' => array(
'url' => '%s/images/headers/trolley.jpg',
'thumbnail_url' => '%s/images/headers/trolley-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Trolley', 'twentyeleven' )
),
'pine-cone' => array(
'url' => '%s/images/headers/pine-cone.jpg',
'thumbnail_url' => '%s/images/headers/pine-cone-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Pine Cone', 'twentyeleven' )
),
'chessboard' => array(
'url' => '%s/images/headers/chessboard.jpg',
'thumbnail_url' => '%s/images/headers/chessboard-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Chessboard', 'twentyeleven' )
),
'lanterns' => array(
'url' => '%s/images/headers/lanterns.jpg',
'thumbnail_url' => '%s/images/headers/lanterns-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Lanterns', 'twentyeleven' )
),
'willow' => array(
'url' => '%s/images/headers/willow.jpg',
'thumbnail_url' => '%s/images/headers/willow-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Willow', 'twentyeleven' )
),
'hanoi' => array(
'url' => '%s/images/headers/hanoi.jpg',
'thumbnail_url' => '%s/images/headers/hanoi-thumbnail.jpg',
/* translators: header image description */
'description' => __( 'Hanoi Plant', 'twentyeleven' )
)
) );
/*
* Add Twenty Eleven's custom image sizes.
* Used for large feature (header) images.
*/
add_image_size( 'large-feature', $custom_header_support['width'], $custom_header_support['height'], true );
// Used for featured posts if a large-feature doesn't exist.
add_image_size( 'small-feature', 500, 300 );
// Default custom headers packaged with the theme. %s is a placeholder for the theme template directory URI.
register_default_headers(
array(
'wheel' => array(
'url' => '%s/images/headers/wheel.jpg',
'thumbnail_url' => '%s/images/headers/wheel-thumbnail.jpg',
/* translators: Header image description. */
'description' => __( 'Wheel', 'twentyeleven' ),
),
'shore' => array(
'url' => '%s/images/headers/shore.jpg',
'thumbnail_url' => '%s/images/headers/shore-thumbnail.jpg',
/* translators: Header image description. */
'description' => __( 'Shore', 'twentyeleven' ),
),
'trolley' => array(
'url' => '%s/images/headers/trolley.jpg',
'thumbnail_url' => '%s/images/headers/trolley-thumbnail.jpg',
/* translators: Header image description. */
'description' => __( 'Trolley', 'twentyeleven' ),
),
'pine-cone' => array(
'url' => '%s/images/headers/pine-cone.jpg',
'thumbnail_url' => '%s/images/headers/pine-cone-thumbnail.jpg',
/* translators: Header image description. */
'description' => __( 'Pine Cone', 'twentyeleven' ),
),
'chessboard' => array(
'url' => '%s/images/headers/chessboard.jpg',
'thumbnail_url' => '%s/images/headers/chessboard-thumbnail.jpg',
/* translators: Header image description. */
'description' => __( 'Chessboard', 'twentyeleven' ),
),
'lanterns' => array(
'url' => '%s/images/headers/lanterns.jpg',
'thumbnail_url' => '%s/images/headers/lanterns-thumbnail.jpg',
/* translators: Header image description. */
'description' => __( 'Lanterns', 'twentyeleven' ),
),
'willow' => array(
'url' => '%s/images/headers/willow.jpg',
'thumbnail_url' => '%s/images/headers/willow-thumbnail.jpg',
/* translators: Header image description. */
'description' => __( 'Willow', 'twentyeleven' ),
),
'hanoi' => array(
'url' => '%s/images/headers/hanoi.jpg',
'thumbnail_url' => '%s/images/headers/hanoi-thumbnail.jpg',
/* translators: Header image description. */
'description' => __( 'Hanoi Plant', 'twentyeleven' ),
),
)
);
// Indicate widget sidebars can use selective refresh in the Customizer.
add_theme_support( 'customize-selective-refresh-widgets' );
}
endif; // twentyeleven_setup()
/**
* Enqueue scripts and styles for front end.
*
* @since Twenty Eleven 2.9
*/
function twentyeleven_scripts_styles() {
// Theme block stylesheet.
wp_enqueue_style( 'twentyeleven-block-style', get_template_directory_uri() . '/blocks.css', array(), '20190102' );
}
add_action( 'wp_enqueue_scripts', 'twentyeleven_scripts_styles' );
/**
* Enqueue styles for the block-based editor.
*
* @since Twenty Eleven 2.9
*/
function twentyeleven_block_editor_styles() {
// Block styles.
wp_enqueue_style( 'twentyeleven-block-editor-style', get_template_directory_uri() . '/editor-blocks.css', array(), '20201208' );
}
add_action( 'enqueue_block_editor_assets', 'twentyeleven_block_editor_styles' );
if ( ! function_exists( 'twentyeleven_header_style' ) ) :
/**
* Styles the header image and text displayed on the blog.
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_header_style() {
$text_color = get_header_textcolor();
// If no custom options for text are set, let's bail.
if ( HEADER_TEXTCOLOR == $text_color ) {
return;
}
// If we get this far, we have custom styles. Let's do this.
?>
Header admin panel.
*
* Referenced via add_theme_support('custom-header') in twentyeleven_setup().
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_admin_header_style() {
?>
Header admin panel.
*
* Referenced via add_theme_support('custom-header') in twentyeleven_setup().
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_admin_header_image() { ?>
' . __( 'Continue reading →', 'twentyeleven' ) . '';
}
endif; // twentyeleven_continue_reading_link()
/**
* Replace "[...]" in the Read More link with an ellipsis.
*
* The "[...]" is appended to automatically generated excerpts.
*
* To override this in a child theme, remove the filter and add your own
* function tied to the excerpt_more filter hook.
*
* @since Twenty Eleven 1.0
*
* @param string $more The Read More text.
* @return string The filtered Read More text.
*/
function twentyeleven_auto_excerpt_more( $more ) {
if ( ! is_admin() ) {
return ' …' . twentyeleven_continue_reading_link();
}
return $more;
}
add_filter( 'excerpt_more', 'twentyeleven_auto_excerpt_more' );
/**
* Add a pretty "Continue Reading" link to custom post excerpts.
*
* To override this link in a child theme, remove the filter and add your own
* function tied to the get_the_excerpt filter hook.
*
* @since Twenty Eleven 1.0
*
* @param string $output The "Continue Reading" link.
* @return string The filtered "Continue Reading" link.
*/
function twentyeleven_custom_excerpt_more( $output ) {
if ( has_excerpt() && ! is_attachment() && ! is_admin() ) {
$output .= twentyeleven_continue_reading_link();
}
return $output;
}
add_filter( 'get_the_excerpt', 'twentyeleven_custom_excerpt_more' );
/**
* Show a home link for the wp_nav_menu() fallback, wp_page_menu().
*
* @since Twenty Eleven 1.0
*
* @param array $args The page menu arguments. @see wp_page_menu()
* @return array The filtered page menu arguments.
*/
function twentyeleven_page_menu_args( $args ) {
if ( ! isset( $args['show_home'] ) ) {
$args['show_home'] = true;
}
return $args;
}
add_filter( 'wp_page_menu_args', 'twentyeleven_page_menu_args' );
/**
* Register sidebars and widgetized areas.
*
* Also register the default Epherma widget.
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_widgets_init() {
register_widget( 'Twenty_Eleven_Ephemera_Widget' );
register_sidebar( array(
'name' => __( 'Main Sidebar', 'twentyeleven' ),
'id' => 'sidebar-1',
'before_widget' => '',
'before_title' => '
',
) );
register_sidebar( array(
'name' => __( 'Footer Area One', 'twentyeleven' ),
'id' => 'sidebar-3',
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
'before_widget' => '',
'before_title' => '
',
'after_title' => '
',
) );
register_sidebar( array(
'name' => __( 'Footer Area Two', 'twentyeleven' ),
'id' => 'sidebar-4',
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
'before_widget' => '',
'before_title' => '
',
'after_title' => '
',
) );
register_sidebar( array(
'name' => __( 'Footer Area Three', 'twentyeleven' ),
'id' => 'sidebar-5',
'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
'before_widget' => '',
'before_title' => '
',
'after_title' => '
',
) );
}
add_action( 'widgets_init', 'twentyeleven_widgets_init' );
if ( ! function_exists( 'twentyeleven_content_nav' ) ) :
/**
* Display navigation to next/previous pages when applicable.
*
* @since Twenty Eleven 1.0
*
* @param string $html_id The HTML id attribute.
*/
function twentyeleven_content_nav( $html_id ) {
global $wp_query;
if ( $wp_query->max_num_pages > 1 ) :
?>
]*?href=[\'"](.+?)[\'"]/is', get_the_content(), $matches ) ) {
return false;
}
return esc_url_raw( $matches[1] );
}
/**
* Count the number of footer sidebars to enable dynamic classes for the footer.
*
* @since Twenty Eleven 1.0
*/
function twentyeleven_footer_sidebar_class() {
$count = 0;
if ( is_active_sidebar( 'sidebar-3' ) ) {
$count++;
}
if ( is_active_sidebar( 'sidebar-4' ) ) {
$count++;
}
if ( is_active_sidebar( 'sidebar-5' ) ) {
$count++;
}
$class = '';
switch ( $count ) {
case '1':
$class = 'one';
break;
case '2':
$class = 'two';
break;
case '3':
$class = 'three';
break;
}
if ( $class ) {
echo 'class="' . esc_attr( $class ) . '"';
}
}
if ( ! function_exists( 'twentyeleven_comment' ) ) :
/**
* Template for comments and pingbacks.
*
* To override this walker in a child theme without modifying the comments template
* simply create your own twentyeleven_comment(), and that function will be used instead.
*
* Used as a callback by wp_list_comments() for displaying the comments.
*
* @since Twenty Eleven 1.0
*
* @param WP_Comment $comment The comment object.
* @param array $args An array of comment arguments. @see get_comment_reply_link()
* @param int $depth The depth of the comment.
*/
function twentyeleven_comment( $comment, $args, $depth ) {
$GLOBALS['comment'] = $comment;
switch ( $comment->comment_type ) :
case 'pingback':
case 'trackback':
?>
Posted on by %7$s', 'twentyeleven' ),
esc_url( get_permalink() ),
esc_attr( get_the_time() ),
esc_attr( get_the_date( 'c' ) ),
esc_html( get_the_date() ),
esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ),
/* translators: %s: Author display name. */
esc_attr( sprintf( __( 'View all posts by %s', 'twentyeleven' ), get_the_author() ) ),
get_the_author()
);
}
endif;
/**
* Add two classes to the array of body classes.
*
* The first is if the site has only had one author with published posts.
* The second is if a singular post being displayed
*
* @since Twenty Eleven 1.0
*
* @param array $classes Existing body classes.
* @return array The filtered array of body classes.
*/
function twentyeleven_body_classes( $classes ) {
if ( function_exists( 'is_multi_author' ) && ! is_multi_author() ) {
$classes[] = 'single-author';
}
if ( is_singular() && ! is_home() && ! is_page_template( 'showcase.php' ) && ! is_page_template( 'sidebar-page.php' ) ) {
$classes[] = 'singular';
}
return $classes;
}
add_filter( 'body_class', 'twentyeleven_body_classes' );
/**
* Retrieve the IDs for images in a gallery.
*
* @uses get_post_galleries() First, if available. Falls back to shortcode parsing,
* then as last option uses a get_posts() call.
*
* @since Twenty Eleven 1.6
*
* @return array List of image IDs from the post gallery.
*/
function twentyeleven_get_gallery_images() {
$images = array();
if ( function_exists( 'get_post_galleries' ) ) {
$galleries = get_post_galleries( get_the_ID(), false );
if ( isset( $galleries[0]['ids'] ) ) {
$images = explode( ',', $galleries[0]['ids'] );
}
} else {
$pattern = get_shortcode_regex();
preg_match( "/$pattern/s", get_the_content(), $match );
$atts = shortcode_parse_atts( $match[3] );
if ( isset( $atts['ids'] ) ) {
$images = explode( ',', $atts['ids'] );
}
}
if ( ! $images ) {
$images = get_posts(
array(
'fields' => 'ids',
'numberposts' => 999,
'order' => 'ASC',
'orderby' => 'menu_order',
'post_mime_type' => 'image',
'post_parent' => get_the_ID(),
'post_type' => 'attachment',
)
);
}
return $images;
}
/**
* Modifies tag cloud widget arguments to display all tags in the same font size
* and use list format for better accessibility.
*
* @since Twenty Eleven 2.7
*
* @param array $args Arguments for tag cloud widget.
* @return array The filtered arguments for tag cloud widget.
*/
function twentyeleven_widget_tag_cloud_args( $args ) {
$args['largest'] = 22;
$args['smallest'] = 8;
$args['unit'] = 'pt';
$args['format'] = 'list';
return $args;
}
add_filter( 'widget_tag_cloud_args', 'twentyeleven_widget_tag_cloud_args' );
if ( ! function_exists( 'wp_body_open' ) ) :
/**
* Fire the wp_body_open action.
*
* Added for backward compatibility to support pre-5.2.0 WordPress versions.
*
* @since Twenty Eleven 3.3
*/
function wp_body_open() {
/**
* Triggered after the opening tag.
*
* @since Twenty Eleven 3.3
*/
do_action( 'wp_body_open' );
}
endif;
/**
* Include a skip to content link at the top of the page so that users can bypass the menu.
*
* @since Twenty Eleven 3.4
*/
function twentyeleven_skip_link() {
echo '
';
}
}
add_action( 'wp_body_open', 'twentyeleven_skip_link', 5 );
if ( ! function_exists( 'wp_get_list_item_separator' ) ) :
/**
* Retrieves the list item separator based on the locale.
*
* Added for backward compatibility to support pre-6.0.0 WordPress versions.
*
* @since 6.0.0
*/
function wp_get_list_item_separator() {
/* translators: Used between list items, there is a space after the comma. */
return __( ', ', 'twentyeleven' );
}
endif;