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<?php |
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/** |
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* Twenty Thirteen functions and definitions |
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* |
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* Sets up the theme and provides some helper functions, which are used in the |
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* theme as custom template tags. Others are attached to action and filter |
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* hooks in WordPress to change core functionality. |
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* |
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* When using a child theme (see https://codex.wordpress.org/Theme_Development |
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* and https://codex.wordpress.org/Child_Themes), you can override certain |
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* functions (those wrapped in a function_exists() call) by defining them first |
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* in your child theme's functions.php file. The child theme's functions.php |
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* file is included before the parent theme's file, so the child theme |
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* functions would be used. |
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* |
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* Functions that are not pluggable (not wrapped in function_exists()) are |
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* instead attached to a filter or action hook. |
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* |
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* For more information on hooks, actions, and filters, @link https://codex.wordpress.org/Plugin_API |
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* |
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* @package WordPress |
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* @subpackage Twenty_Thirteen |
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* @since Twenty Thirteen 1.0 |
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*/ |
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/* |
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* Set up the content width value based on the theme's design. |
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* |
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* @see twentythirteen_content_width() for template-specific adjustments. |
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*/ |
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if ( ! isset( $content_width ) ) |
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$content_width = 604; |
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/** |
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* Add support for a custom header image. |
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*/ |
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require get_template_directory() . '/inc/custom-header.php'; |
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/** |
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* Twenty Thirteen only works in WordPress 3.6 or later. |
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*/ |
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if ( version_compare( $GLOBALS['wp_version'], '3.6-alpha', '<' ) ) |
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require get_template_directory() . '/inc/back-compat.php'; |
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/** |
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* Twenty Thirteen setup. |
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* |
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* Sets up theme defaults and registers the various WordPress features that |
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* Twenty Thirteen supports. |
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* |
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* @uses load_theme_textdomain() For translation/localization support. |
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* @uses add_editor_style() To add Visual Editor stylesheets. |
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* @uses add_theme_support() To add support for automatic feed links, post |
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* formats, and post thumbnails. |
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* @uses register_nav_menu() To add support for a navigation menu. |
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* @uses set_post_thumbnail_size() To set a custom post thumbnail size. |
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* |
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* @since Twenty Thirteen 1.0 |
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*/ |
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function twentythirteen_setup() { |
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/* |
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* Makes Twenty Thirteen available for translation. |
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* |
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* Translations can be added to the /languages/ directory. |
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* If you're building a theme based on Twenty Thirteen, use a find and |
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* replace to change 'twentythirteen' to the name of your theme in all |
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* template files. |
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*/ |
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load_theme_textdomain( 'twentythirteen', get_template_directory() . '/languages' ); |
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/* |
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* This theme styles the visual editor to resemble the theme style, |
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* specifically font, colors, icons, and column width. |
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*/ |
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add_editor_style( array( 'css/editor-style.css', 'genericons/genericons.css', twentythirteen_fonts_url() ) ); |
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// Adds RSS feed links to <head> for posts and comments. |
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add_theme_support( 'automatic-feed-links' ); |
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/* |
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* Switches default core markup for search form, comment form, |
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* and comments to output valid HTML5. |
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*/ |
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add_theme_support( 'html5', array( |
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'search-form', 'comment-form', 'comment-list', 'gallery', 'caption' |
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) ); |
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/* |
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* This theme supports all available post formats by default. |
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* See https://codex.wordpress.org/Post_Formats |
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*/ |
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add_theme_support( 'post-formats', array( |
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'aside', 'audio', 'chat', 'gallery', 'image', 'link', 'quote', 'status', 'video' |
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) ); |
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// This theme uses wp_nav_menu() in one location. |
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register_nav_menu( 'primary', __( 'Navigation Menu', 'twentythirteen' ) ); |
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/* |
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* This theme uses a custom image size for featured images, displayed on |
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* "standard" posts and pages. |
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*/ |
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add_theme_support( 'post-thumbnails' ); |
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set_post_thumbnail_size( 604, 270, true ); |
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// This theme uses its own gallery styles. |
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add_filter( 'use_default_gallery_style', '__return_false' ); |
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} |
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add_action( 'after_setup_theme', 'twentythirteen_setup' ); |
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/** |
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* Return the Google font stylesheet URL, if available. |
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* |
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* The use of Source Sans Pro and Bitter by default is localized. For languages |
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* that use characters not supported by the font, the font can be disabled. |
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* |
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* @since Twenty Thirteen 1.0 |
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* |
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* @return string Font stylesheet or empty string if disabled. |
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*/ |
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function twentythirteen_fonts_url() { |
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$fonts_url = ''; |
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/* Translators: If there are characters in your language that are not |
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* supported by Source Sans Pro, translate this to 'off'. Do not translate |
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* into your own language. |
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*/ |
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$source_sans_pro = _x( 'on', 'Source Sans Pro font: on or off', 'twentythirteen' ); |
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/* Translators: If there are characters in your language that are not |
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* supported by Bitter, translate this to 'off'. Do not translate into your |
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* own language. |
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*/ |
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$bitter = _x( 'on', 'Bitter font: on or off', 'twentythirteen' ); |
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if ( 'off' !== $source_sans_pro || 'off' !== $bitter ) { |
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$font_families = array(); |
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if ( 'off' !== $source_sans_pro ) |
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$font_families[] = 'Source Sans Pro:300,400,700,300italic,400italic,700italic'; |
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if ( 'off' !== $bitter ) |
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$font_families[] = 'Bitter:400,700'; |
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$query_args = array( |
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'family' => urlencode( implode( '|', $font_families ) ), |
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'subset' => urlencode( 'latin,latin-ext' ), |
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); |
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$fonts_url = add_query_arg( $query_args, '//fonts.googleapis.com/css' ); |
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} |
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return $fonts_url; |
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} |
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/** |
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* Enqueue scripts and styles for the front end. |
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* |
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* @since Twenty Thirteen 1.0 |
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*/ |
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function twentythirteen_scripts_styles() { |
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/* |
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* Adds JavaScript to pages with the comment form to support |
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* sites with threaded comments (when in use). |
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*/ |
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if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) |
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wp_enqueue_script( 'comment-reply' ); |
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// Adds Masonry to handle vertical alignment of footer widgets. |
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if ( is_active_sidebar( 'sidebar-1' ) ) |
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wp_enqueue_script( 'jquery-masonry' ); |
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// Loads JavaScript file with functionality specific to Twenty Thirteen. |
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wp_enqueue_script( 'twentythirteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20150330', true ); |
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// Add Source Sans Pro and Bitter fonts, used in the main stylesheet. |
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wp_enqueue_style( 'twentythirteen-fonts', twentythirteen_fonts_url(), array(), null ); |
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// Add Genericons font, used in the main stylesheet. |
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wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.03' ); |
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// Loads our main stylesheet. |
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wp_enqueue_style( 'twentythirteen-style', get_stylesheet_uri(), array(), '2013-07-18' ); |
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// Loads the Internet Explorer specific stylesheet. |
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wp_enqueue_style( 'twentythirteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentythirteen-style' ), '2013-07-18' ); |
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wp_style_add_data( 'twentythirteen-ie', 'conditional', 'lt IE 9' ); |
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} |
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add_action( 'wp_enqueue_scripts', 'twentythirteen_scripts_styles' ); |
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/** |
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* Filter the page title. |
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* |
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* Creates a nicely formatted and more specific title element text for output |
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* in head of document, based on current view. |
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* |
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* @since Twenty Thirteen 1.0 |
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* |
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* @param string $title Default title text for current view. |
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* @param string $sep Optional separator. |
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* @return string The filtered title. |
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*/ |
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function twentythirteen_wp_title( $title, $sep ) { |
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global $paged, $page; |
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if ( is_feed() ) |
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return $title; |
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// Add the site name. |
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$title .= get_bloginfo( 'name', 'display' ); |
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// Add the site description for the home/front page. |
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$site_description = get_bloginfo( 'description', 'display' ); |
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if ( $site_description && ( is_home() || is_front_page() ) ) |
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$title = "$title $sep $site_description"; |
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// Add a page number if necessary. |
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if ( ( $paged >= 2 || $page >= 2 ) && ! is_404() ) |
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$title = "$title $sep " . sprintf( __( 'Page %s', 'twentythirteen' ), max( $paged, $page ) ); |
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return $title; |
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} |
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add_filter( 'wp_title', 'twentythirteen_wp_title', 10, 2 ); |
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/** |
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* Register two widget areas. |
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* |
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* @since Twenty Thirteen 1.0 |
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*/ |
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function twentythirteen_widgets_init() { |
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register_sidebar( array( |
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'name' => __( 'Main Widget Area', 'twentythirteen' ), |
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'id' => 'sidebar-1', |
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'description' => __( 'Appears in the footer section of the site.', 'twentythirteen' ), |
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'before_widget' => '<aside id="%1$s" class="widget %2$s">', |
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'after_widget' => '</aside>', |
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'before_title' => '<h3 class="widget-title">', |
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'after_title' => '</h3>', |
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) ); |
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register_sidebar( array( |
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'name' => __( 'Secondary Widget Area', 'twentythirteen' ), |
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'id' => 'sidebar-2', |
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'description' => __( 'Appears on posts and pages in the sidebar.', 'twentythirteen' ), |
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'before_widget' => '<aside id="%1$s" class="widget %2$s">', |
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'after_widget' => '</aside>', |
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'before_title' => '<h3 class="widget-title">', |
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'after_title' => '</h3>', |
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) ); |
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} |
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add_action( 'widgets_init', 'twentythirteen_widgets_init' ); |
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if ( ! function_exists( 'twentythirteen_paging_nav' ) ) : |
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/** |
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* Display navigation to next/previous set of posts when applicable. |
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* |
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* @since Twenty Thirteen 1.0 |
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*/ |
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function twentythirteen_paging_nav() { |
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global $wp_query; |
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// Don't print empty markup if there's only one page. |
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if ( $wp_query->max_num_pages < 2 ) |
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return; |
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?> |
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<nav class="navigation paging-navigation" role="navigation"> |
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<h1 class="screen-reader-text"><?php _e( 'Posts navigation', 'twentythirteen' ); ?></h1> |
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<div class="nav-links"> |
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<?php if ( get_next_posts_link() ) : ?> |
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<div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">←</span> Older posts', 'twentythirteen' ) ); ?></div> |
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<?php endif; ?> |
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<?php if ( get_previous_posts_link() ) : ?> |
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<div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'twentythirteen' ) ); ?></div> |
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<?php endif; ?> |
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</div><!-- .nav-links --> |
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</nav><!-- .navigation --> |
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<?php |
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} |
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endif; |
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if ( ! function_exists( 'twentythirteen_post_nav' ) ) : |
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/** |
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* Display navigation to next/previous post when applicable. |
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* |
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* @since Twenty Thirteen 1.0 |
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*/ |
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function twentythirteen_post_nav() { |
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global $post; |
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// Don't print empty markup if there's nowhere to navigate. |
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$previous = ( is_attachment() ) ? get_post( $post->post_parent ) : get_adjacent_post( false, '', true ); |
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$next = get_adjacent_post( false, '', false ); |
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if ( ! $next && ! $previous ) |
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return; |
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?> |
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<nav class="navigation post-navigation" role="navigation"> |
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<h1 class="screen-reader-text"><?php _e( 'Post navigation', 'twentythirteen' ); ?></h1> |
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<div class="nav-links"> |
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<?php previous_post_link( '%link', _x( '<span class="meta-nav">←</span> %title', 'Previous post link', 'twentythirteen' ) ); ?> |
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<?php next_post_link( '%link', _x( '%title <span class="meta-nav">→</span>', 'Next post link', 'twentythirteen' ) ); ?> |
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</div><!-- .nav-links --> |
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</nav><!-- .navigation --> |
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<?php |
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} |
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endif; |
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if ( ! function_exists( 'twentythirteen_entry_meta' ) ) : |
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/** |
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* Print HTML with meta information for current post: categories, tags, permalink, author, and date. |
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* |
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* Create your own twentythirteen_entry_meta() to override in a child theme. |
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* |
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* @since Twenty Thirteen 1.0 |
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*/ |
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function twentythirteen_entry_meta() { |
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if ( is_sticky() && is_home() && ! is_paged() ) |
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echo '<span class="featured-post">' . esc_html__( 'Sticky', 'twentythirteen' ) . '</span>'; |
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if ( ! has_post_format( 'link' ) && 'post' == get_post_type() ) |
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twentythirteen_entry_date(); |
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// Translators: used between list items, there is a space after the comma. |
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$categories_list = get_the_category_list( __( ', ', 'twentythirteen' ) ); |
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if ( $categories_list ) { |
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echo '<span class="categories-links">' . $categories_list . '</span>'; |
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} |
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// Translators: used between list items, there is a space after the comma. |
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$tag_list = get_the_tag_list( '', __( ', ', 'twentythirteen' ) ); |
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if ( $tag_list ) { |
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echo '<span class="tags-links">' . $tag_list . '</span>'; |
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} |
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// Post author |
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if ( 'post' == get_post_type() ) { |
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printf( '<span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s" rel="author">%3$s</a></span>', |
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esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ), |
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esc_attr( sprintf( __( 'View all posts by %s', 'twentythirteen' ), get_the_author() ) ), |
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get_the_author() |
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); |
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} |
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} |
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endif; |
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if ( ! function_exists( 'twentythirteen_entry_date' ) ) : |
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/** |
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* Print HTML with date information for current post. |
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* |
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* Create your own twentythirteen_entry_date() to override in a child theme. |
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355 |
* |
|
|
356 |
* @since Twenty Thirteen 1.0 |
|
|
357 |
* |
|
|
358 |
* @param boolean $echo (optional) Whether to echo the date. Default true. |
|
|
359 |
* @return string The HTML-formatted post date. |
|
|
360 |
*/ |
|
|
361 |
function twentythirteen_entry_date( $echo = true ) { |
|
|
362 |
if ( has_post_format( array( 'chat', 'status' ) ) ) |
|
|
363 |
$format_prefix = _x( '%1$s on %2$s', '1: post format name. 2: date', 'twentythirteen' ); |
|
|
364 |
else |
|
|
365 |
$format_prefix = '%2$s'; |
|
|
366 |
|
|
|
367 |
$date = sprintf( '<span class="date"><a href="%1$s" title="%2$s" rel="bookmark"><time class="entry-date" datetime="%3$s">%4$s</time></a></span>', |
|
|
368 |
esc_url( get_permalink() ), |
|
|
369 |
esc_attr( sprintf( __( 'Permalink to %s', 'twentythirteen' ), the_title_attribute( 'echo=0' ) ) ), |
|
|
370 |
esc_attr( get_the_date( 'c' ) ), |
|
|
371 |
esc_html( sprintf( $format_prefix, get_post_format_string( get_post_format() ), get_the_date() ) ) |
|
|
372 |
); |
|
|
373 |
|
|
|
374 |
if ( $echo ) |
|
|
375 |
echo $date; |
|
|
376 |
|
|
|
377 |
return $date; |
|
|
378 |
} |
|
|
379 |
endif; |
|
|
380 |
|
|
|
381 |
if ( ! function_exists( 'twentythirteen_the_attached_image' ) ) : |
|
|
382 |
/** |
|
|
383 |
* Print the attached image with a link to the next attached image. |
|
|
384 |
* |
|
|
385 |
* @since Twenty Thirteen 1.0 |
|
|
386 |
*/ |
|
|
387 |
function twentythirteen_the_attached_image() { |
|
|
388 |
/** |
|
|
389 |
* Filter the image attachment size to use. |
|
|
390 |
* |
|
|
391 |
* @since Twenty thirteen 1.0 |
|
|
392 |
* |
|
|
393 |
* @param array $size { |
|
|
394 |
* @type int The attachment height in pixels. |
|
|
395 |
* @type int The attachment width in pixels. |
|
|
396 |
* } |
|
|
397 |
*/ |
|
|
398 |
$attachment_size = apply_filters( 'twentythirteen_attachment_size', array( 724, 724 ) ); |
|
|
399 |
$next_attachment_url = wp_get_attachment_url(); |
|
|
400 |
$post = get_post(); |
|
|
401 |
|
|
|
402 |
/* |
|
|
403 |
* Grab the IDs of all the image attachments in a gallery so we can get the URL |
|
|
404 |
* of the next adjacent image in a gallery, or the first image (if we're |
|
|
405 |
* looking at the last image in a gallery), or, in a gallery of one, just the |
|
|
406 |
* link to that image file. |
|
|
407 |
*/ |
|
|
408 |
$attachment_ids = get_posts( array( |
|
|
409 |
'post_parent' => $post->post_parent, |
|
|
410 |
'fields' => 'ids', |
|
|
411 |
'numberposts' => -1, |
|
|
412 |
'post_status' => 'inherit', |
|
|
413 |
'post_type' => 'attachment', |
|
|
414 |
'post_mime_type' => 'image', |
|
|
415 |
'order' => 'ASC', |
|
5
|
416 |
'orderby' => 'menu_order ID', |
|
0
|
417 |
) ); |
|
|
418 |
|
|
|
419 |
// If there is more than 1 attachment in a gallery... |
|
|
420 |
if ( count( $attachment_ids ) > 1 ) { |
|
|
421 |
foreach ( $attachment_ids as $attachment_id ) { |
|
|
422 |
if ( $attachment_id == $post->ID ) { |
|
|
423 |
$next_id = current( $attachment_ids ); |
|
|
424 |
break; |
|
|
425 |
} |
|
|
426 |
} |
|
|
427 |
|
|
|
428 |
// get the URL of the next image attachment... |
|
|
429 |
if ( $next_id ) |
|
|
430 |
$next_attachment_url = get_attachment_link( $next_id ); |
|
|
431 |
|
|
|
432 |
// or get the URL of the first image attachment. |
|
|
433 |
else |
|
5
|
434 |
$next_attachment_url = get_attachment_link( reset( $attachment_ids ) ); |
|
0
|
435 |
} |
|
|
436 |
|
|
|
437 |
printf( '<a href="%1$s" title="%2$s" rel="attachment">%3$s</a>', |
|
|
438 |
esc_url( $next_attachment_url ), |
|
|
439 |
the_title_attribute( array( 'echo' => false ) ), |
|
|
440 |
wp_get_attachment_image( $post->ID, $attachment_size ) |
|
|
441 |
); |
|
|
442 |
} |
|
|
443 |
endif; |
|
|
444 |
|
|
|
445 |
/** |
|
|
446 |
* Return the post URL. |
|
|
447 |
* |
|
|
448 |
* @uses get_url_in_content() to get the URL in the post meta (if it exists) or |
|
|
449 |
* the first link found in the post content. |
|
|
450 |
* |
|
|
451 |
* Falls back to the post permalink if no URL is found in the post. |
|
|
452 |
* |
|
|
453 |
* @since Twenty Thirteen 1.0 |
|
|
454 |
* |
|
|
455 |
* @return string The Link format URL. |
|
|
456 |
*/ |
|
|
457 |
function twentythirteen_get_link_url() { |
|
|
458 |
$content = get_the_content(); |
|
|
459 |
$has_url = get_url_in_content( $content ); |
|
|
460 |
|
|
|
461 |
return ( $has_url ) ? $has_url : apply_filters( 'the_permalink', get_permalink() ); |
|
|
462 |
} |
|
|
463 |
|
|
5
|
464 |
if ( ! function_exists( 'twentythirteen_excerpt_more' ) && ! is_admin() ) : |
|
|
465 |
/** |
|
|
466 |
* Replaces "[...]" (appended to automatically generated excerpts) with ... |
|
|
467 |
* and a Continue reading link. |
|
|
468 |
* |
|
|
469 |
* @since Twenty Thirteen 1.4 |
|
|
470 |
* |
|
|
471 |
* @param string $more Default Read More excerpt link. |
|
|
472 |
* @return string Filtered Read More excerpt link. |
|
|
473 |
*/ |
|
|
474 |
function twentythirteen_excerpt_more( $more ) { |
|
|
475 |
$link = sprintf( '<a href="%1$s" class="more-link">%2$s</a>', |
|
|
476 |
esc_url( get_permalink( get_the_ID() ) ), |
|
|
477 |
/* translators: %s: Name of current post */ |
|
|
478 |
sprintf( __( 'Continue reading %s <span class="meta-nav">→</span>', 'twentythirteen' ), '<span class="screen-reader-text">' . get_the_title( get_the_ID() ) . '</span>' ) |
|
|
479 |
); |
|
|
480 |
return ' … ' . $link; |
|
|
481 |
} |
|
|
482 |
add_filter( 'excerpt_more', 'twentythirteen_excerpt_more' ); |
|
|
483 |
endif; |
|
|
484 |
|
|
0
|
485 |
/** |
|
|
486 |
* Extend the default WordPress body classes. |
|
|
487 |
* |
|
|
488 |
* Adds body classes to denote: |
|
|
489 |
* 1. Single or multiple authors. |
|
|
490 |
* 2. Active widgets in the sidebar to change the layout and spacing. |
|
|
491 |
* 3. When avatars are disabled in discussion settings. |
|
|
492 |
* |
|
|
493 |
* @since Twenty Thirteen 1.0 |
|
|
494 |
* |
|
|
495 |
* @param array $classes A list of existing body class values. |
|
|
496 |
* @return array The filtered body class list. |
|
|
497 |
*/ |
|
|
498 |
function twentythirteen_body_class( $classes ) { |
|
|
499 |
if ( ! is_multi_author() ) |
|
|
500 |
$classes[] = 'single-author'; |
|
|
501 |
|
|
|
502 |
if ( is_active_sidebar( 'sidebar-2' ) && ! is_attachment() && ! is_404() ) |
|
|
503 |
$classes[] = 'sidebar'; |
|
|
504 |
|
|
|
505 |
if ( ! get_option( 'show_avatars' ) ) |
|
|
506 |
$classes[] = 'no-avatars'; |
|
|
507 |
|
|
|
508 |
return $classes; |
|
|
509 |
} |
|
|
510 |
add_filter( 'body_class', 'twentythirteen_body_class' ); |
|
|
511 |
|
|
|
512 |
/** |
|
|
513 |
* Adjust content_width value for video post formats and attachment templates. |
|
|
514 |
* |
|
|
515 |
* @since Twenty Thirteen 1.0 |
|
|
516 |
*/ |
|
|
517 |
function twentythirteen_content_width() { |
|
|
518 |
global $content_width; |
|
|
519 |
|
|
|
520 |
if ( is_attachment() ) |
|
|
521 |
$content_width = 724; |
|
|
522 |
elseif ( has_post_format( 'audio' ) ) |
|
|
523 |
$content_width = 484; |
|
|
524 |
} |
|
|
525 |
add_action( 'template_redirect', 'twentythirteen_content_width' ); |
|
|
526 |
|
|
|
527 |
/** |
|
|
528 |
* Add postMessage support for site title and description for the Customizer. |
|
|
529 |
* |
|
|
530 |
* @since Twenty Thirteen 1.0 |
|
|
531 |
* |
|
|
532 |
* @param WP_Customize_Manager $wp_customize Customizer object. |
|
|
533 |
*/ |
|
|
534 |
function twentythirteen_customize_register( $wp_customize ) { |
|
|
535 |
$wp_customize->get_setting( 'blogname' )->transport = 'postMessage'; |
|
|
536 |
$wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage'; |
|
|
537 |
$wp_customize->get_setting( 'header_textcolor' )->transport = 'postMessage'; |
|
|
538 |
} |
|
|
539 |
add_action( 'customize_register', 'twentythirteen_customize_register' ); |
|
|
540 |
|
|
|
541 |
/** |
|
|
542 |
* Enqueue Javascript postMessage handlers for the Customizer. |
|
|
543 |
* |
|
|
544 |
* Binds JavaScript handlers to make the Customizer preview |
|
|
545 |
* reload changes asynchronously. |
|
|
546 |
* |
|
|
547 |
* @since Twenty Thirteen 1.0 |
|
|
548 |
*/ |
|
|
549 |
function twentythirteen_customize_preview_js() { |
|
5
|
550 |
wp_enqueue_script( 'twentythirteen-customizer', get_template_directory_uri() . '/js/theme-customizer.js', array( 'customize-preview' ), '20141120', true ); |
|
0
|
551 |
} |
|
|
552 |
add_action( 'customize_preview_init', 'twentythirteen_customize_preview_js' ); |