X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/177fd6fefd2e3d5a0ea6591c71d660cabdb3c1a4..refs/tags/wordpress-4.7.1:/wp-includes/theme.php diff --git a/wp-includes/theme.php b/wp-includes/theme.php index 984b4ee2..84fdd23a 100644 --- a/wp-includes/theme.php +++ b/wp-includes/theme.php @@ -1,30 +1,258 @@ false, 'allowed' => null, 'blog_id' => 0 ); + $args = wp_parse_args( $args, $defaults ); + + $theme_directories = search_theme_directories(); + + if ( count( $wp_theme_directories ) > 1 ) { + // Make sure the current theme wins out, in case search_theme_directories() picks the wrong + // one in the case of a conflict. (Normally, last registered theme root wins.) + $current_theme = get_stylesheet(); + if ( isset( $theme_directories[ $current_theme ] ) ) { + $root_of_current_theme = get_raw_theme_root( $current_theme ); + if ( ! in_array( $root_of_current_theme, $wp_theme_directories ) ) + $root_of_current_theme = WP_CONTENT_DIR . $root_of_current_theme; + $theme_directories[ $current_theme ]['theme_root'] = $root_of_current_theme; + } + } + + if ( empty( $theme_directories ) ) + return array(); + + if ( is_multisite() && null !== $args['allowed'] ) { + $allowed = $args['allowed']; + if ( 'network' === $allowed ) + $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed_on_network() ); + elseif ( 'site' === $allowed ) + $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed_on_site( $args['blog_id'] ) ); + elseif ( $allowed ) + $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed( $args['blog_id'] ) ); + else + $theme_directories = array_diff_key( $theme_directories, WP_Theme::get_allowed( $args['blog_id'] ) ); + } + + $themes = array(); + static $_themes = array(); + + foreach ( $theme_directories as $theme => $theme_root ) { + if ( isset( $_themes[ $theme_root['theme_root'] . '/' . $theme ] ) ) + $themes[ $theme ] = $_themes[ $theme_root['theme_root'] . '/' . $theme ]; + else + $themes[ $theme ] = $_themes[ $theme_root['theme_root'] . '/' . $theme ] = new WP_Theme( $theme, $theme_root['theme_root'] ); + } + + if ( null !== $args['errors'] ) { + foreach ( $themes as $theme => $wp_theme ) { + if ( $wp_theme->errors() != $args['errors'] ) + unset( $themes[ $theme ] ); + } + } + + return $themes; +} + +/** + * Gets a WP_Theme object for a theme. + * + * @since 3.4.0 + * + * @global array $wp_theme_directories + * + * @param string $stylesheet Directory name for the theme. Optional. Defaults to current theme. + * @param string $theme_root Absolute path of the theme root to look in. Optional. If not specified, get_raw_theme_root() + * is used to calculate the theme root for the $stylesheet provided (or current theme). + * @return WP_Theme Theme object. Be sure to check the object's exists() method if you need to confirm the theme's existence. + */ +function wp_get_theme( $stylesheet = null, $theme_root = null ) { + global $wp_theme_directories; + + if ( empty( $stylesheet ) ) + $stylesheet = get_stylesheet(); + + if ( empty( $theme_root ) ) { + $theme_root = get_raw_theme_root( $stylesheet ); + if ( false === $theme_root ) + $theme_root = WP_CONTENT_DIR . '/themes'; + elseif ( ! in_array( $theme_root, (array) $wp_theme_directories ) ) + $theme_root = WP_CONTENT_DIR . $theme_root; + } + + return new WP_Theme( $stylesheet, $theme_root ); +} + +/** + * Clears the cache held by get_theme_roots() and WP_Theme. + * + * @since 3.5.0 + * @param bool $clear_update_cache Whether to clear the Theme updates cache + */ +function wp_clean_themes_cache( $clear_update_cache = true ) { + if ( $clear_update_cache ) + delete_site_transient( 'update_themes' ); + search_theme_directories( true ); + foreach ( wp_get_themes( array( 'errors' => null ) ) as $theme ) + $theme->cache_delete(); +} + +/** + * Whether a child theme is in use. + * + * @since 3.0.0 + * + * @return bool true if a child theme is in use, false otherwise. + **/ +function is_child_theme() { + return ( TEMPLATEPATH !== STYLESHEETPATH ); +} + +/** + * Retrieve name of the current stylesheet. + * + * The theme name that the administrator has currently set the front end theme + * as. + * + * For all intents and purposes, the template name and the stylesheet name are + * going to be the same for most cases. + * + * @since 1.5.0 + * + * @return string Stylesheet name. + */ function get_stylesheet() { - return apply_filters('stylesheet', get_option('stylesheet')); + /** + * Filters the name of current stylesheet. + * + * @since 1.5.0 + * + * @param string $stylesheet Name of the current stylesheet. + */ + return apply_filters( 'stylesheet', get_option( 'stylesheet' ) ); } +/** + * Retrieve stylesheet directory path for current theme. + * + * @since 1.5.0 + * + * @return string Path to current theme directory. + */ function get_stylesheet_directory() { $stylesheet = get_stylesheet(); - $stylesheet_dir = get_theme_root() . "/$stylesheet"; - return apply_filters('stylesheet_directory', $stylesheet_dir, $stylesheet); + $theme_root = get_theme_root( $stylesheet ); + $stylesheet_dir = "$theme_root/$stylesheet"; + + /** + * Filters the stylesheet directory path for current theme. + * + * @since 1.5.0 + * + * @param string $stylesheet_dir Absolute path to the current theme. + * @param string $stylesheet Directory name of the current theme. + * @param string $theme_root Absolute path to themes directory. + */ + return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root ); } +/** + * Retrieve stylesheet directory URI. + * + * @since 1.5.0 + * + * @return string + */ function get_stylesheet_directory_uri() { - $stylesheet = get_stylesheet(); - $stylesheet_dir_uri = get_theme_root_uri() . "/$stylesheet"; - return apply_filters('stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet); + $stylesheet = str_replace( '%2F', '/', rawurlencode( get_stylesheet() ) ); + $theme_root_uri = get_theme_root_uri( $stylesheet ); + $stylesheet_dir_uri = "$theme_root_uri/$stylesheet"; + + /** + * Filters the stylesheet directory URI. + * + * @since 1.5.0 + * + * @param string $stylesheet_dir_uri Stylesheet directory URI. + * @param string $stylesheet Name of the activated theme's directory. + * @param string $theme_root_uri Themes root URI. + */ + return apply_filters( 'stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet, $theme_root_uri ); } +/** + * Retrieves the URI of current theme stylesheet. + * + * The stylesheet file name is 'style.css' which is appended to the stylesheet directory URI path. + * See get_stylesheet_directory_uri(). + * + * @since 1.5.0 + * + * @return string + */ function get_stylesheet_uri() { $stylesheet_dir_uri = get_stylesheet_directory_uri(); - $stylesheet_uri = $stylesheet_dir_uri . "/style.css"; - return apply_filters('stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri); + $stylesheet_uri = $stylesheet_dir_uri . '/style.css'; + /** + * Filters the URI of the current theme stylesheet. + * + * @since 1.5.0 + * + * @param string $stylesheet_uri Stylesheet URI for the current theme/child theme. + * @param string $stylesheet_dir_uri Stylesheet directory URI for the current theme/child theme. + */ + return apply_filters( 'stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri ); } +/** + * Retrieves the localized stylesheet URI. + * + * The stylesheet directory for the localized stylesheet files are located, by + * default, in the base theme directory. The name of the locale file will be the + * locale followed by '.css'. If that does not exist, then the text direction + * stylesheet will be checked for existence, for example 'ltr.css'. + * + * The theme may change the location of the stylesheet directory by either using + * the {@see 'stylesheet_directory_uri'} or {@see 'locale_stylesheet_uri'} filters. + * + * If you want to change the location of the stylesheet files for the entire + * WordPress workflow, then change the former. If you just have the locale in a + * separate folder, then change the latter. + * + * @since 2.1.0 + * + * @global WP_Locale $wp_locale + * + * @return string + */ function get_locale_stylesheet_uri() { global $wp_locale; $stylesheet_dir_uri = get_stylesheet_directory_uri(); @@ -36,545 +264,2788 @@ function get_locale_stylesheet_uri() { $stylesheet_uri = "$stylesheet_dir_uri/{$wp_locale->text_direction}.css"; else $stylesheet_uri = ''; - return apply_filters('locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri); + /** + * Filters the localized stylesheet URI. + * + * @since 2.1.0 + * + * @param string $stylesheet_uri Localized stylesheet URI. + * @param string $stylesheet_dir_uri Stylesheet directory URI. + */ + return apply_filters( 'locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri ); } +/** + * Retrieve name of the current theme. + * + * @since 1.5.0 + * + * @return string Template name. + */ function get_template() { - return apply_filters('template', get_option('template')); + /** + * Filters the name of the current theme. + * + * @since 1.5.0 + * + * @param string $template Current theme's directory name. + */ + return apply_filters( 'template', get_option( 'template' ) ); } +/** + * Retrieve current theme directory. + * + * @since 1.5.0 + * + * @return string Template directory path. + */ function get_template_directory() { $template = get_template(); - $template_dir = get_theme_root() . "/$template"; - return apply_filters('template_directory', $template_dir, $template); + $theme_root = get_theme_root( $template ); + $template_dir = "$theme_root/$template"; + + /** + * Filters the current theme directory path. + * + * @since 1.5.0 + * + * @param string $template_dir The URI of the current theme directory. + * @param string $template Directory name of the current theme. + * @param string $theme_root Absolute path to the themes directory. + */ + return apply_filters( 'template_directory', $template_dir, $template, $theme_root ); } +/** + * Retrieve theme directory URI. + * + * @since 1.5.0 + * + * @return string Template directory URI. + */ function get_template_directory_uri() { - $template = get_template(); - $template_dir_uri = get_theme_root_uri() . "/$template"; - return apply_filters('template_directory_uri', $template_dir_uri, $template); + $template = str_replace( '%2F', '/', rawurlencode( get_template() ) ); + $theme_root_uri = get_theme_root_uri( $template ); + $template_dir_uri = "$theme_root_uri/$template"; + + /** + * Filters the current theme directory URI. + * + * @since 1.5.0 + * + * @param string $template_dir_uri The URI of the current theme directory. + * @param string $template Directory name of the current theme. + * @param string $theme_root_uri The themes root URI. + */ + return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri ); } -function get_theme_data( $theme_file ) { - $themes_allowed_tags = array( - 'a' => array( - 'href' => array(),'title' => array() - ), - 'abbr' => array( - 'title' => array() - ), - 'acronym' => array( - 'title' => array() - ), - 'code' => array(), - 'em' => array(), - 'strong' => array() - ); +/** + * Retrieve theme roots. + * + * @since 2.9.0 + * + * @global array $wp_theme_directories + * + * @return array|string An array of theme roots keyed by template/stylesheet or a single theme root if all themes have the same root. + */ +function get_theme_roots() { + global $wp_theme_directories; - $theme_data = implode( '', file( $theme_file ) ); - $theme_data = str_replace ( '\r', '\n', $theme_data ); - preg_match( '|Theme Name:(.*)$|mi', $theme_data, $theme_name ); - preg_match( '|Theme URI:(.*)$|mi', $theme_data, $theme_uri ); - preg_match( '|Description:(.*)$|mi', $theme_data, $description ); + if ( count($wp_theme_directories) <= 1 ) + return '/themes'; - if ( preg_match( '|Author URI:(.*)$|mi', $theme_data, $author_uri ) ) - $author_uri = clean_url( trim( $author_uri[1]) ); - else - $author_uti = ''; + $theme_roots = get_site_transient( 'theme_roots' ); + if ( false === $theme_roots ) { + search_theme_directories( true ); // Regenerate the transient. + $theme_roots = get_site_transient( 'theme_roots' ); + } + return $theme_roots; +} - if ( preg_match( '|Template:(.*)$|mi', $theme_data, $template ) ) - $template = wp_kses( trim( $template[1] ), $themes_allowed_tags ); - else - $template = ''; +/** + * Register a directory that contains themes. + * + * @since 2.9.0 + * + * @global array $wp_theme_directories + * + * @param string $directory Either the full filesystem path to a theme folder or a folder within WP_CONTENT_DIR + * @return bool + */ +function register_theme_directory( $directory ) { + global $wp_theme_directories; + + if ( ! file_exists( $directory ) ) { + // Try prepending as the theme directory could be relative to the content directory + $directory = WP_CONTENT_DIR . '/' . $directory; + // If this directory does not exist, return and do not register + if ( ! file_exists( $directory ) ) { + return false; + } + } - if ( preg_match( '|Version:(.*)|i', $theme_data, $version ) ) - $version = wp_kses( trim( $version[1] ), $themes_allowed_tags ); - else - $version = ''; + if ( ! is_array( $wp_theme_directories ) ) { + $wp_theme_directories = array(); + } - if ( preg_match('|Status:(.*)|i', $theme_data, $status) ) - $status = wp_kses( trim( $status[1] ), $themes_allowed_tags ); - else - $status = 'publish'; + $untrailed = untrailingslashit( $directory ); + if ( ! empty( $untrailed ) && ! in_array( $untrailed, $wp_theme_directories ) ) { + $wp_theme_directories[] = $untrailed; + } - if ( preg_match('|Tags:(.*)|i', $theme_data, $tags) ) - $tags = array_map( 'trim', explode( ',', wp_kses( trim( $tags[1] ), array() ) ) ); - else - $tags = array(); + return true; +} - $name = $theme = wp_kses( trim( $theme_name[1] ), $themes_allowed_tags ); - $theme_uri = clean_url( trim( $theme_uri[1] ) ); - $description = wptexturize( wp_kses( trim( $description[1] ), $themes_allowed_tags ) ); +/** + * Search all registered theme directories for complete and valid themes. + * + * @since 2.9.0 + * + * @global array $wp_theme_directories + * @staticvar array $found_themes + * + * @param bool $force Optional. Whether to force a new directory scan. Defaults to false. + * @return array|false Valid themes found + */ +function search_theme_directories( $force = false ) { + global $wp_theme_directories; + static $found_themes = null; - if ( preg_match( '|Author:(.*)$|mi', $theme_data, $author_name ) ) { - if ( empty( $author_uri ) ) { - $author = wp_kses( trim( $author_name[1] ), $themes_allowed_tags ); - } else { - $author = sprintf( '%3$s', $author_uri, __( 'Visit author homepage' ), wp_kses( trim( $author_name[1] ), $themes_allowed_tags ) ); - } - } else { - $author = __('Anonymous'); - } + if ( empty( $wp_theme_directories ) ) + return false; - return array( 'Name' => $name, 'Title' => $theme, 'URI' => $theme_uri, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Status' => $status, 'Tags' => $tags ); -} + if ( ! $force && isset( $found_themes ) ) + return $found_themes; -function get_themes() { - global $wp_themes, $wp_broken_themes; + $found_themes = array(); - if ( isset($wp_themes) ) - return $wp_themes; + $wp_theme_directories = (array) $wp_theme_directories; + $relative_theme_roots = array(); - $themes = array(); - $wp_broken_themes = array(); - $theme_loc = $theme_root = get_theme_root(); - if ( '/' != ABSPATH ) // don't want to replace all forward slashes, see Trac #4541 - $theme_loc = str_replace(ABSPATH, '', $theme_root); - - // Files in wp-content/themes directory and one subdir down - $themes_dir = @ opendir($theme_root); - if ( !$themes_dir ) - return false; + // Set up maybe-relative, maybe-absolute array of theme directories. + // We always want to return absolute, but we need to cache relative + // to use in get_theme_root(). + foreach ( $wp_theme_directories as $theme_root ) { + if ( 0 === strpos( $theme_root, WP_CONTENT_DIR ) ) + $relative_theme_roots[ str_replace( WP_CONTENT_DIR, '', $theme_root ) ] = $theme_root; + else + $relative_theme_roots[ $theme_root ] = $theme_root; + } + + /** + * Filters whether to get the cache of the registered theme directories. + * + * @since 3.4.0 + * + * @param bool $cache_expiration Whether to get the cache of the theme directories. Default false. + * @param string $cache_directory Directory to be searched for the cache. + */ + if ( $cache_expiration = apply_filters( 'wp_cache_themes_persistently', false, 'search_theme_directories' ) ) { + $cached_roots = get_site_transient( 'theme_roots' ); + if ( is_array( $cached_roots ) ) { + foreach ( $cached_roots as $theme_dir => $theme_root ) { + // A cached theme root is no longer around, so skip it. + if ( ! isset( $relative_theme_roots[ $theme_root ] ) ) + continue; + $found_themes[ $theme_dir ] = array( + 'theme_file' => $theme_dir . '/style.css', + 'theme_root' => $relative_theme_roots[ $theme_root ], // Convert relative to absolute. + ); + } + return $found_themes; + } + if ( ! is_int( $cache_expiration ) ) + $cache_expiration = 1800; // half hour + } else { + $cache_expiration = 1800; // half hour + } - while ( ($theme_dir = readdir($themes_dir)) !== false ) { - if ( is_dir($theme_root . '/' . $theme_dir) && is_readable($theme_root . '/' . $theme_dir) ) { - if ( $theme_dir{0} == '.' || $theme_dir == '..' || $theme_dir == 'CVS' ) + /* Loop the registered theme directories and extract all themes */ + foreach ( $wp_theme_directories as $theme_root ) { + + // Start with directories in the root of the current theme directory. + $dirs = @ scandir( $theme_root ); + if ( ! $dirs ) { + trigger_error( "$theme_root is not readable", E_USER_NOTICE ); + continue; + } + foreach ( $dirs as $dir ) { + if ( ! is_dir( $theme_root . '/' . $dir ) || $dir[0] == '.' || $dir == 'CVS' ) continue; - $stylish_dir = @ opendir($theme_root . '/' . $theme_dir); - $found_stylesheet = false; - while ( ($theme_file = readdir($stylish_dir)) !== false ) { - if ( $theme_file == 'style.css' ) { - $theme_files[] = $theme_dir . '/' . $theme_file; - $found_stylesheet = true; - break; + if ( file_exists( $theme_root . '/' . $dir . '/style.css' ) ) { + // wp-content/themes/a-single-theme + // wp-content/themes is $theme_root, a-single-theme is $dir + $found_themes[ $dir ] = array( + 'theme_file' => $dir . '/style.css', + 'theme_root' => $theme_root, + ); + } else { + $found_theme = false; + // wp-content/themes/a-folder-of-themes/* + // wp-content/themes is $theme_root, a-folder-of-themes is $dir, then themes are $sub_dirs + $sub_dirs = @ scandir( $theme_root . '/' . $dir ); + if ( ! $sub_dirs ) { + trigger_error( "$theme_root/$dir is not readable", E_USER_NOTICE ); + continue; } - } - @closedir($stylish_dir); - if ( !$found_stylesheet ) { // look for themes in that dir - $subdir = "$theme_root/$theme_dir"; - $subdir_name = $theme_dir; - $theme_subdir = @ opendir( $subdir ); - while ( ($theme_dir = readdir($theme_subdir)) !== false ) { - if ( is_dir( $subdir . '/' . $theme_dir) && is_readable($subdir . '/' . $theme_dir) ) { - if ( $theme_dir{0} == '.' || $theme_dir == '..' || $theme_dir == 'CVS' ) - continue; - $stylish_dir = @ opendir($subdir . '/' . $theme_dir); - $found_stylesheet = false; - while ( ($theme_file = readdir($stylish_dir)) !== false ) { - if ( $theme_file == 'style.css' ) { - $theme_files[] = $subdir_name . '/' . $theme_dir . '/' . $theme_file; - $found_stylesheet = true; - break; - } - } - @closedir($stylish_dir); - } + foreach ( $sub_dirs as $sub_dir ) { + if ( ! is_dir( $theme_root . '/' . $dir . '/' . $sub_dir ) || $dir[0] == '.' || $dir == 'CVS' ) + continue; + if ( ! file_exists( $theme_root . '/' . $dir . '/' . $sub_dir . '/style.css' ) ) + continue; + $found_themes[ $dir . '/' . $sub_dir ] = array( + 'theme_file' => $dir . '/' . $sub_dir . '/style.css', + 'theme_root' => $theme_root, + ); + $found_theme = true; } - @closedir($theme_subdir); - $wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.')); + // Never mind the above, it's just a theme missing a style.css. + // Return it; WP_Theme will catch the error. + if ( ! $found_theme ) + $found_themes[ $dir ] = array( + 'theme_file' => $dir . '/style.css', + 'theme_root' => $theme_root, + ); } } } - if ( is_dir( $theme_dir ) ) - @closedir( $theme_dir ); - if ( !$themes_dir || !$theme_files ) - return $themes; + asort( $found_themes ); - sort($theme_files); + $theme_roots = array(); + $relative_theme_roots = array_flip( $relative_theme_roots ); - foreach ( (array) $theme_files as $theme_file ) { - if ( !is_readable("$theme_root/$theme_file") ) { - $wp_broken_themes[$theme_file] = array('Name' => $theme_file, 'Title' => $theme_file, 'Description' => __('File not readable.')); - continue; - } + foreach ( $found_themes as $theme_dir => $theme_data ) { + $theme_roots[ $theme_dir ] = $relative_theme_roots[ $theme_data['theme_root'] ]; // Convert absolute to relative. + } - $theme_data = get_theme_data("$theme_root/$theme_file"); + if ( $theme_roots != get_site_transient( 'theme_roots' ) ) + set_site_transient( 'theme_roots', $theme_roots, $cache_expiration ); - $name = $theme_data['Name']; - $title = $theme_data['Title']; - $description = wptexturize($theme_data['Description']); - $version = $theme_data['Version']; - $author = $theme_data['Author']; - $template = $theme_data['Template']; - $stylesheet = dirname($theme_file); + return $found_themes; +} - $screenshot = false; - foreach ( array('png', 'gif', 'jpg', 'jpeg') as $ext ) { - if (file_exists("$theme_root/$stylesheet/screenshot.$ext")) { - $screenshot = "screenshot.$ext"; - break; - } - } +/** + * Retrieve path to themes directory. + * + * Does not have trailing slash. + * + * @since 1.5.0 + * + * @global array $wp_theme_directories + * + * @param string $stylesheet_or_template The stylesheet or template name of the theme + * @return string Theme path. + */ +function get_theme_root( $stylesheet_or_template = false ) { + global $wp_theme_directories; + + if ( $stylesheet_or_template && $theme_root = get_raw_theme_root( $stylesheet_or_template ) ) { + // Always prepend WP_CONTENT_DIR unless the root currently registered as a theme directory. + // This gives relative theme roots the benefit of the doubt when things go haywire. + if ( ! in_array( $theme_root, (array) $wp_theme_directories ) ) + $theme_root = WP_CONTENT_DIR . $theme_root; + } else { + $theme_root = WP_CONTENT_DIR . '/themes'; + } - if ( empty($name) ) { - $name = dirname($theme_file); - $title = $name; - } + /** + * Filters the absolute path to the themes directory. + * + * @since 1.5.0 + * + * @param string $theme_root Absolute path to themes directory. + */ + return apply_filters( 'theme_root', $theme_root ); +} - if ( empty($template) ) { - if ( file_exists(dirname("$theme_root/$theme_file/index.php")) ) - $template = dirname($theme_file); +/** + * Retrieve URI for themes directory. + * + * Does not have trailing slash. + * + * @since 1.5.0 + * + * @global array $wp_theme_directories + * + * @param string $stylesheet_or_template Optional. The stylesheet or template name of the theme. + * Default is to leverage the main theme root. + * @param string $theme_root Optional. The theme root for which calculations will be based, preventing + * the need for a get_raw_theme_root() call. + * @return string Themes URI. + */ +function get_theme_root_uri( $stylesheet_or_template = false, $theme_root = false ) { + global $wp_theme_directories; + + if ( $stylesheet_or_template && ! $theme_root ) + $theme_root = get_raw_theme_root( $stylesheet_or_template ); + + if ( $stylesheet_or_template && $theme_root ) { + if ( in_array( $theme_root, (array) $wp_theme_directories ) ) { + // Absolute path. Make an educated guess. YMMV -- but note the filter below. + if ( 0 === strpos( $theme_root, WP_CONTENT_DIR ) ) + $theme_root_uri = content_url( str_replace( WP_CONTENT_DIR, '', $theme_root ) ); + elseif ( 0 === strpos( $theme_root, ABSPATH ) ) + $theme_root_uri = site_url( str_replace( ABSPATH, '', $theme_root ) ); + elseif ( 0 === strpos( $theme_root, WP_PLUGIN_DIR ) || 0 === strpos( $theme_root, WPMU_PLUGIN_DIR ) ) + $theme_root_uri = plugins_url( basename( $theme_root ), $theme_root ); else - continue; + $theme_root_uri = $theme_root; + } else { + $theme_root_uri = content_url( $theme_root ); } + } else { + $theme_root_uri = content_url( 'themes' ); + } - $template = trim($template); + /** + * Filters the URI for themes directory. + * + * @since 1.5.0 + * + * @param string $theme_root_uri The URI for themes directory. + * @param string $siteurl WordPress web address which is set in General Options. + * @param string $stylesheet_or_template Stylesheet or template name of the theme. + */ + return apply_filters( 'theme_root_uri', $theme_root_uri, get_option( 'siteurl' ), $stylesheet_or_template ); +} - if ( !file_exists("$theme_root/$template/index.php") ) { - $parent_dir = dirname(dirname($theme_file)); - if ( file_exists("$theme_root/$parent_dir/$template/index.php") ) { - $template = "$parent_dir/$template"; - } else { - $wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.')); - continue; - } - } +/** + * Get the raw theme root relative to the content directory with no filters applied. + * + * @since 3.1.0 + * + * @global array $wp_theme_directories + * + * @param string $stylesheet_or_template The stylesheet or template name of the theme + * @param bool $skip_cache Optional. Whether to skip the cache. + * Defaults to false, meaning the cache is used. + * @return string Theme root + */ +function get_raw_theme_root( $stylesheet_or_template, $skip_cache = false ) { + global $wp_theme_directories; - $stylesheet_files = array(); - $stylesheet_dir = @ dir("$theme_root/$stylesheet"); - if ( $stylesheet_dir ) { - while ( ($file = $stylesheet_dir->read()) !== false ) { - if ( !preg_match('|^\.+$|', $file) && preg_match('|\.css$|', $file) ) - $stylesheet_files[] = "$theme_loc/$stylesheet/$file"; - } - } + if ( count($wp_theme_directories) <= 1 ) + return '/themes'; - $template_files = array(); - $template_dir = @ dir("$theme_root/$template"); - if ( $template_dir ) { - while(($file = $template_dir->read()) !== false) { - if ( !preg_match('|^\.+$|', $file) && preg_match('|\.php$|', $file) ) - $template_files[] = "$theme_loc/$template/$file"; - } - } + $theme_root = false; - $template_dir = dirname($template_files[0]); - $stylesheet_dir = dirname($stylesheet_files[0]); - - if ( empty($template_dir) ) - $template_dir = '/'; - if ( empty($stylesheet_dir) ) - $stylesheet_dir = '/'; - - // Check for theme name collision. This occurs if a theme is copied to - // a new theme directory and the theme header is not updated. Whichever - // theme is first keeps the name. Subsequent themes get a suffix applied. - // The Default and Classic themes always trump their pretenders. - if ( isset($themes[$name]) ) { - if ( ('WordPress Default' == $name || 'WordPress Classic' == $name) && - ('default' == $stylesheet || 'classic' == $stylesheet) ) { - // If another theme has claimed to be one of our default themes, move - // them aside. - $suffix = $themes[$name]['Stylesheet']; - $new_name = "$name/$suffix"; - $themes[$new_name] = $themes[$name]; - $themes[$new_name]['Name'] = $new_name; - } else { - $name = "$name/$stylesheet"; - } - } + // If requesting the root for the current theme, consult options to avoid calling get_theme_roots() + if ( ! $skip_cache ) { + if ( get_option('stylesheet') == $stylesheet_or_template ) + $theme_root = get_option('stylesheet_root'); + elseif ( get_option('template') == $stylesheet_or_template ) + $theme_root = get_option('template_root'); + } - $themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Stylesheet' => $stylesheet, 'Template Files' => $template_files, 'Stylesheet Files' => $stylesheet_files, 'Template Dir' => $template_dir, 'Stylesheet Dir' => $stylesheet_dir, 'Status' => $theme_data['Status'], 'Screenshot' => $screenshot, 'Tags' => $theme_data['Tags']); + if ( empty($theme_root) ) { + $theme_roots = get_theme_roots(); + if ( !empty($theme_roots[$stylesheet_or_template]) ) + $theme_root = $theme_roots[$stylesheet_or_template]; } - // Resolve theme dependencies. - $theme_names = array_keys($themes); + return $theme_root; +} - foreach ( (array) $theme_names as $theme_name ) { - $themes[$theme_name]['Parent Theme'] = ''; - if ( $themes[$theme_name]['Stylesheet'] != $themes[$theme_name]['Template'] ) { - foreach ( (array) $theme_names as $parent_theme_name ) { - if ( ($themes[$parent_theme_name]['Stylesheet'] == $themes[$parent_theme_name]['Template']) && ($themes[$parent_theme_name]['Template'] == $themes[$theme_name]['Template']) ) { - $themes[$theme_name]['Parent Theme'] = $themes[$parent_theme_name]['Name']; - break; - } - } - } +/** + * Display localized stylesheet link element. + * + * @since 2.1.0 + */ +function locale_stylesheet() { + $stylesheet = get_locale_stylesheet_uri(); + if ( empty($stylesheet) ) + return; + echo ''; +} + +/** + * Switches the theme. + * + * Accepts one argument: $stylesheet of the theme. It also accepts an additional function signature + * of two arguments: $template then $stylesheet. This is for backward compatibility. + * + * @since 2.5.0 + * + * @global array $wp_theme_directories + * @global WP_Customize_Manager $wp_customize + * @global array $sidebars_widgets + * + * @param string $stylesheet Stylesheet name + */ +function switch_theme( $stylesheet ) { + global $wp_theme_directories, $wp_customize, $sidebars_widgets; + + $_sidebars_widgets = null; + if ( 'wp_ajax_customize_save' === current_action() ) { + $_sidebars_widgets = $wp_customize->post_value( $wp_customize->get_setting( 'old_sidebars_widgets_data' ) ); + } elseif ( is_array( $sidebars_widgets ) ) { + $_sidebars_widgets = $sidebars_widgets; } - $wp_themes = $themes; + if ( is_array( $_sidebars_widgets ) ) { + set_theme_mod( 'sidebars_widgets', array( 'time' => time(), 'data' => $_sidebars_widgets ) ); + } - return $themes; -} + $nav_menu_locations = get_theme_mod( 'nav_menu_locations' ); + + if ( func_num_args() > 1 ) { + $stylesheet = func_get_arg( 1 ); + } -function get_theme($theme) { - $themes = get_themes(); + $old_theme = wp_get_theme(); + $new_theme = wp_get_theme( $stylesheet ); + $template = $new_theme->get_template(); - if ( array_key_exists($theme, $themes) ) - return $themes[$theme]; + update_option( 'template', $template ); + update_option( 'stylesheet', $stylesheet ); - return NULL; -} + if ( count( $wp_theme_directories ) > 1 ) { + update_option( 'template_root', get_raw_theme_root( $template, true ) ); + update_option( 'stylesheet_root', get_raw_theme_root( $stylesheet, true ) ); + } else { + delete_option( 'template_root' ); + delete_option( 'stylesheet_root' ); + } -function get_current_theme() { - if ( $theme = get_option('current_theme') ) - return $theme; + $new_name = $new_theme->get('Name'); - $themes = get_themes(); - $theme_names = array_keys($themes); - $current_template = get_option('template'); - $current_stylesheet = get_option('stylesheet'); - $current_theme = 'WordPress Default'; + update_option( 'current_theme', $new_name ); - if ( $themes ) { - foreach ( (array) $theme_names as $theme_name ) { - if ( $themes[$theme_name]['Stylesheet'] == $current_stylesheet && - $themes[$theme_name]['Template'] == $current_template ) { - $current_theme = $themes[$theme_name]['Name']; - break; + // Migrate from the old mods_{name} option to theme_mods_{slug}. + if ( is_admin() && false === get_option( 'theme_mods_' . $stylesheet ) ) { + $default_theme_mods = (array) get_option( 'mods_' . $new_name ); + if ( ! empty( $nav_menu_locations ) && empty( $default_theme_mods['nav_menu_locations'] ) ) { + $default_theme_mods['nav_menu_locations'] = $nav_menu_locations; + } + add_option( "theme_mods_$stylesheet", $default_theme_mods ); + } else { + /* + * Since retrieve_widgets() is called when initializing a theme in the Customizer, + * we need to remove the theme mods to avoid overwriting changes made via + * the Customizer when accessing wp-admin/widgets.php. + */ + if ( 'wp_ajax_customize_save' === current_action() ) { + remove_theme_mod( 'sidebars_widgets' ); + } + + if ( ! empty( $nav_menu_locations ) ) { + $nav_mods = get_theme_mod( 'nav_menu_locations' ); + if ( empty( $nav_mods ) ) { + set_theme_mod( 'nav_menu_locations', $nav_menu_locations ); } } } - update_option('current_theme', $current_theme); - - return $current_theme; + update_option( 'theme_switched', $old_theme->get_stylesheet() ); + + /** + * Fires after the theme is switched. + * + * @since 1.5.0 + * @since 4.5.0 Introduced the `$old_theme` parameter. + * + * @param string $new_name Name of the new theme. + * @param WP_Theme $new_theme WP_Theme instance of the new theme. + * @param WP_Theme $old_theme WP_Theme instance of the old theme. + */ + do_action( 'switch_theme', $new_name, $new_theme, $old_theme ); } -function get_theme_root() { - return apply_filters('theme_root', ABSPATH . "wp-content/themes"); -} +/** + * Checks that current theme files 'index.php' and 'style.css' exists. + * + * Does not initially check the default theme, which is the fallback and should always exist. + * But if it doesn't exist, it'll fall back to the latest core default theme that does exist. + * Will switch theme to the fallback theme if current theme does not validate. + * + * You can use the {@see 'validate_current_theme'} filter to return false to + * disable this functionality. + * + * @since 1.5.0 + * @see WP_DEFAULT_THEME + * + * @return bool + */ +function validate_current_theme() { + /** + * Filters whether to validate the current theme. + * + * @since 2.7.0 + * + * @param bool $validate Whether to validate the current theme. Default true. + */ + if ( wp_installing() || ! apply_filters( 'validate_current_theme', true ) ) + return true; -function get_theme_root_uri() { - return apply_filters('theme_root_uri', get_option('siteurl') . "/wp-content/themes", get_option('siteurl')); -} + if ( ! file_exists( get_template_directory() . '/index.php' ) ) { + // Invalid. + } elseif ( ! file_exists( get_template_directory() . '/style.css' ) ) { + // Invalid. + } elseif ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) { + // Invalid. + } else { + // Valid. + return true; + } -function get_query_template($type) { - $template = ''; - $type = preg_replace( '|[^a-z0-9-]+|', '', $type ); - if ( file_exists(TEMPLATEPATH . "/{$type}.php") ) - $template = TEMPLATEPATH . "/{$type}.php"; + $default = wp_get_theme( WP_DEFAULT_THEME ); + if ( $default->exists() ) { + switch_theme( WP_DEFAULT_THEME ); + return false; + } + + /** + * If we're in an invalid state but WP_DEFAULT_THEME doesn't exist, + * switch to the latest core default theme that's installed. + * If it turns out that this latest core default theme is our current + * theme, then there's nothing we can do about that, so we have to bail, + * rather than going into an infinite loop. (This is why there are + * checks against WP_DEFAULT_THEME above, also.) We also can't do anything + * if it turns out there is no default theme installed. (That's `false`.) + */ + $default = WP_Theme::get_core_default_theme(); + if ( false === $default || get_stylesheet() == $default->get_stylesheet() ) { + return true; + } - return apply_filters("{$type}_template", $template); + switch_theme( $default->get_stylesheet() ); + return false; } -function get_404_template() { - return get_query_template('404'); +/** + * Retrieve all theme modifications. + * + * @since 3.1.0 + * + * @return array|void Theme modifications. + */ +function get_theme_mods() { + $theme_slug = get_option( 'stylesheet' ); + $mods = get_option( "theme_mods_$theme_slug" ); + if ( false === $mods ) { + $theme_name = get_option( 'current_theme' ); + if ( false === $theme_name ) + $theme_name = wp_get_theme()->get('Name'); + $mods = get_option( "mods_$theme_name" ); // Deprecated location. + if ( is_admin() && false !== $mods ) { + update_option( "theme_mods_$theme_slug", $mods ); + delete_option( "mods_$theme_name" ); + } + } + return $mods; } -function get_archive_template() { - return get_query_template('archive'); +/** + * Retrieve theme modification value for the current theme. + * + * If the modification name does not exist, then the $default will be passed + * through {@link https://secure.php.net/sprintf sprintf()} PHP function with the first + * string the template directory URI and the second string the stylesheet + * directory URI. + * + * @since 2.1.0 + * + * @param string $name Theme modification name. + * @param bool|string $default + * @return string + */ +function get_theme_mod( $name, $default = false ) { + $mods = get_theme_mods(); + + if ( isset( $mods[$name] ) ) { + /** + * Filters the theme modification, or 'theme_mod', value. + * + * The dynamic portion of the hook name, `$name`, refers to + * the key name of the modification array. For example, + * 'header_textcolor', 'header_image', and so on depending + * on the theme options. + * + * @since 2.2.0 + * + * @param string $current_mod The value of the current theme modification. + */ + return apply_filters( "theme_mod_{$name}", $mods[$name] ); + } + + if ( is_string( $default ) ) + $default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() ); + + /** This filter is documented in wp-includes/theme.php */ + return apply_filters( "theme_mod_{$name}", $default ); } -function get_author_template() { - return get_query_template('author'); +/** + * Update theme modification value for the current theme. + * + * @since 2.1.0 + * + * @param string $name Theme modification name. + * @param mixed $value Theme modification value. + */ +function set_theme_mod( $name, $value ) { + $mods = get_theme_mods(); + $old_value = isset( $mods[ $name ] ) ? $mods[ $name ] : false; + + /** + * Filters the theme mod value on save. + * + * The dynamic portion of the hook name, `$name`, refers to the key name of + * the modification array. For example, 'header_textcolor', 'header_image', + * and so on depending on the theme options. + * + * @since 3.9.0 + * + * @param string $value The new value of the theme mod. + * @param string $old_value The current value of the theme mod. + */ + $mods[ $name ] = apply_filters( "pre_set_theme_mod_{$name}", $value, $old_value ); + + $theme = get_option( 'stylesheet' ); + update_option( "theme_mods_$theme", $mods ); } -function get_category_template() { - $template = ''; - if ( file_exists(TEMPLATEPATH . "/category-" . absint( get_query_var('cat') ) . '.php') ) - $template = TEMPLATEPATH . "/category-" . absint( get_query_var('cat') ) . '.php'; - elseif ( file_exists(TEMPLATEPATH . "/category.php") ) - $template = TEMPLATEPATH . "/category.php"; +/** + * Remove theme modification name from current theme list. + * + * If removing the name also removes all elements, then the entire option will + * be removed. + * + * @since 2.1.0 + * + * @param string $name Theme modification name. + */ +function remove_theme_mod( $name ) { + $mods = get_theme_mods(); - return apply_filters('category_template', $template); -} + if ( ! isset( $mods[ $name ] ) ) + return; -function get_tag_template() { - $template = ''; - if ( file_exists(TEMPLATEPATH . "/tag-" . get_query_var('tag') . '.php') ) - $template = TEMPLATEPATH . "/tag-" . get_query_var('tag') . '.php'; - elseif ( file_exists(TEMPLATEPATH . "/tag.php") ) - $template = TEMPLATEPATH . "/tag.php"; + unset( $mods[ $name ] ); - return apply_filters('tag_template', $template); + if ( empty( $mods ) ) { + remove_theme_mods(); + return; + } + $theme = get_option( 'stylesheet' ); + update_option( "theme_mods_$theme", $mods ); } -function get_taxonomy_template() { - $template = ''; - $taxonomy = get_query_var('taxonomy'); - $term = get_query_var('term'); - if ( $taxonomy && $term && file_exists(TEMPLATEPATH . "/taxonomy-$taxonomy-$term.php") ) - $template = TEMPLATEPATH . "/taxonomy-$taxonomy-$term.php"; - elseif ( $taxonomy && file_exists(TEMPLATEPATH . "/taxonomy-$taxonomy.php") ) - $template = TEMPLATEPATH . "/taxonomy-$taxonomy.php"; - elseif ( file_exists(TEMPLATEPATH . "/taxonomy.php") ) - $template = TEMPLATEPATH . "/taxonomy.php"; +/** + * Remove theme modifications option for current theme. + * + * @since 2.1.0 + */ +function remove_theme_mods() { + delete_option( 'theme_mods_' . get_option( 'stylesheet' ) ); - return apply_filters('taxonomy_template', $template); + // Old style. + $theme_name = get_option( 'current_theme' ); + if ( false === $theme_name ) + $theme_name = wp_get_theme()->get('Name'); + delete_option( 'mods_' . $theme_name ); } -function get_date_template() { - return get_query_template('date'); +/** + * Retrieves the custom header text color in HEX format. + * + * @since 2.1.0 + * + * @return string Header text color in HEX format (minus the hash symbol). + */ +function get_header_textcolor() { + return get_theme_mod('header_textcolor', get_theme_support( 'custom-header', 'default-text-color' ) ); } -function get_home_template() { - $template = ''; +/** + * Displays the custom header text color in HEX format (minus the hash symbol). + * + * @since 2.1.0 + */ +function header_textcolor() { + echo get_header_textcolor(); +} - if ( file_exists(TEMPLATEPATH . "/home.php") ) - $template = TEMPLATEPATH . "/home.php"; - elseif ( file_exists(TEMPLATEPATH . "/index.php") ) - $template = TEMPLATEPATH . "/index.php"; +/** + * Whether to display the header text. + * + * @since 3.4.0 + * + * @return bool + */ +function display_header_text() { + if ( ! current_theme_supports( 'custom-header', 'header-text' ) ) + return false; - return apply_filters('home_template', $template); + $text_color = get_theme_mod( 'header_textcolor', get_theme_support( 'custom-header', 'default-text-color' ) ); + return 'blank' !== $text_color; } -function get_page_template() { - global $wp_query; +/** + * Check whether a header image is set or not. + * + * @since 4.2.0 + * + * @see get_header_image() + * + * @return bool Whether a header image is set or not. + */ +function has_header_image() { + return (bool) get_header_image(); +} - $id = (int) $wp_query->post->ID; - $template = get_post_meta($id, '_wp_page_template', true); +/** + * Retrieve header image for custom header. + * + * @since 2.1.0 + * + * @return string|false + */ +function get_header_image() { + $url = get_theme_mod( 'header_image', get_theme_support( 'custom-header', 'default-image' ) ); - if ( 'default' == $template ) - $template = ''; + if ( 'remove-header' == $url ) + return false; - if ( !empty($template) && file_exists(TEMPLATEPATH . "/$template") ) - $template = TEMPLATEPATH . "/$template"; - elseif ( file_exists(TEMPLATEPATH . "/page.php") ) - $template = TEMPLATEPATH . "/page.php"; - else - $template = ''; + if ( is_random_header_image() ) + $url = get_random_header_image(); - return apply_filters('page_template', $template); + return esc_url_raw( set_url_scheme( $url ) ); } -function get_paged_template() { - return get_query_template('paged'); -} +/** + * Create image tag markup for a custom header image. + * + * @since 4.4.0 + * + * @param array $attr Optional. Additional attributes for the image tag. Can be used + * to override the default attributes. Default empty. + * @return string HTML image element markup or empty string on failure. + */ +function get_header_image_tag( $attr = array() ) { + $header = get_custom_header(); + $header->url = get_header_image(); -function get_search_template() { - return get_query_template('search'); -} + if ( ! $header->url ) { + return ''; + } -function get_single_template() { - return get_query_template('single'); -} + $width = absint( $header->width ); + $height = absint( $header->height ); + + $attr = wp_parse_args( + $attr, + array( + 'src' => $header->url, + 'width' => $width, + 'height' => $height, + 'alt' => get_bloginfo( 'name' ), + ) + ); -function get_attachment_template() { - global $posts; - $type = explode('/', $posts[0]->post_mime_type); - if ( $template = get_query_template($type[0]) ) - return $template; - elseif ( $template = get_query_template($type[1]) ) - return $template; - elseif ( $template = get_query_template("$type[0]_$type[1]") ) - return $template; - else - return get_query_template('attachment'); -} + // Generate 'srcset' and 'sizes' if not already present. + if ( empty( $attr['srcset'] ) && ! empty( $header->attachment_id ) ) { + $image_meta = get_post_meta( $header->attachment_id, '_wp_attachment_metadata', true ); + $size_array = array( $width, $height ); -function get_comments_popup_template() { - if ( file_exists( TEMPLATEPATH . '/comments-popup.php') ) - $template = TEMPLATEPATH . '/comments-popup.php'; - else - $template = get_theme_root() . '/default/comments-popup.php'; + if ( is_array( $image_meta ) ) { + $srcset = wp_calculate_image_srcset( $size_array, $header->url, $image_meta, $header->attachment_id ); + $sizes = ! empty( $attr['sizes'] ) ? $attr['sizes'] : wp_calculate_image_sizes( $size_array, $header->url, $image_meta, $header->attachment_id ); - return apply_filters('comments_popup_template', $template); -} + if ( $srcset && $sizes ) { + $attr['srcset'] = $srcset; + $attr['sizes'] = $sizes; + } + } + } -function load_template($_template_file) { - global $posts, $post, $wp_did_header, $wp_did_template_redirect, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID; + $attr = array_map( 'esc_attr', $attr ); + $html = 'query_vars) ) - extract($wp_query->query_vars, EXTR_SKIP); + foreach ( $attr as $name => $value ) { + $html .= ' ' . $name . '="' . $value . '"'; + } - require_once($_template_file); + $html .= ' />'; + + /** + * Filters the markup of header images. + * + * @since 4.4.0 + * + * @param string $html The HTML image tag markup being filtered. + * @param object $header The custom header object returned by 'get_custom_header()'. + * @param array $attr Array of the attributes for the image tag. + */ + return apply_filters( 'get_header_image_tag', $html, $header, $attr ); } -function locale_stylesheet() { - $stylesheet = get_locale_stylesheet_uri(); - if ( empty($stylesheet) ) - return; - echo ''; +/** + * Display the image markup for a custom header image. + * + * @since 4.4.0 + * + * @param array $attr Optional. Attributes for the image markup. Default empty. + */ +function the_header_image_tag( $attr = array() ) { + echo get_header_image_tag( $attr ); } -function switch_theme($template, $stylesheet) { - update_option('template', $template); - update_option('stylesheet', $stylesheet); - delete_option('current_theme'); - $theme = get_current_theme(); - do_action('switch_theme', $theme); -} +/** + * Get random header image data from registered images in theme. + * + * @since 3.4.0 + * + * @access private + * + * @global array $_wp_default_headers + * @staticvar object $_wp_random_header + * + * @return object + */ +function _get_random_header_data() { + static $_wp_random_header = null; + + if ( empty( $_wp_random_header ) ) { + global $_wp_default_headers; + $header_image_mod = get_theme_mod( 'header_image', '' ); + $headers = array(); + + if ( 'random-uploaded-image' == $header_image_mod ) + $headers = get_uploaded_header_images(); + elseif ( ! empty( $_wp_default_headers ) ) { + if ( 'random-default-image' == $header_image_mod ) { + $headers = $_wp_default_headers; + } else { + if ( current_theme_supports( 'custom-header', 'random-default' ) ) + $headers = $_wp_default_headers; + } + } -function validate_current_theme() { - // Don't validate during an install/upgrade. - if ( defined('WP_INSTALLING') ) - return true; + if ( empty( $headers ) ) + return new stdClass; - if ( get_template() != 'default' && !file_exists(get_template_directory() . '/index.php') ) { - switch_theme('default', 'default'); - return false; - } + $_wp_random_header = (object) $headers[ array_rand( $headers ) ]; - if ( get_stylesheet() != 'default' && !file_exists(get_template_directory() . '/style.css') ) { - switch_theme('default', 'default'); - return false; + $_wp_random_header->url = sprintf( $_wp_random_header->url, get_template_directory_uri(), get_stylesheet_directory_uri() ); + $_wp_random_header->thumbnail_url = sprintf( $_wp_random_header->thumbnail_url, get_template_directory_uri(), get_stylesheet_directory_uri() ); } - - return true; + return $_wp_random_header; } -function get_theme_mod($name, $default = false) { - $theme = get_current_theme(); - - $mods = get_option("mods_$theme"); - - if ( isset($mods[$name]) ) - return apply_filters( "theme_mod_$name", $mods[$name] ); - - return apply_filters( "theme_mod_$name", sprintf($default, get_template_directory_uri(), get_stylesheet_directory_uri()) ); +/** + * Get random header image url from registered images in theme. + * + * @since 3.2.0 + * + * @return string Path to header image + */ +function get_random_header_image() { + $random_image = _get_random_header_data(); + if ( empty( $random_image->url ) ) + return ''; + return $random_image->url; } -function set_theme_mod($name, $value) { - $theme = get_current_theme(); - - $mods = get_option("mods_$theme"); +/** + * Check if random header image is in use. + * + * Always true if user expressly chooses the option in Appearance > Header. + * Also true if theme has multiple header images registered, no specific header image + * is chosen, and theme turns on random headers with add_theme_support(). + * + * @since 3.2.0 + * + * @param string $type The random pool to use. any|default|uploaded + * @return bool + */ +function is_random_header_image( $type = 'any' ) { + $header_image_mod = get_theme_mod( 'header_image', get_theme_support( 'custom-header', 'default-image' ) ); - $mods[$name] = $value; + if ( 'any' == $type ) { + if ( 'random-default-image' == $header_image_mod || 'random-uploaded-image' == $header_image_mod || ( '' != get_random_header_image() && empty( $header_image_mod ) ) ) + return true; + } else { + if ( "random-$type-image" == $header_image_mod ) + return true; + elseif ( 'default' == $type && empty( $header_image_mod ) && '' != get_random_header_image() ) + return true; + } - update_option("mods_$theme", $mods); - wp_cache_delete("mods_$theme", 'options'); + return false; } -function remove_theme_mod( $name ) { - $theme = get_current_theme(); +/** + * Display header image URL. + * + * @since 2.1.0 + */ +function header_image() { + $image = get_header_image(); + if ( $image ) { + echo esc_url( $image ); + } +} - $mods = get_option("mods_$theme"); +/** + * Get the header images uploaded for the current theme. + * + * @since 3.2.0 + * + * @return array + */ +function get_uploaded_header_images() { + $header_images = array(); + + // @todo caching + $headers = get_posts( array( 'post_type' => 'attachment', 'meta_key' => '_wp_attachment_is_custom_header', 'meta_value' => get_option('stylesheet'), 'orderby' => 'none', 'nopaging' => true ) ); + + if ( empty( $headers ) ) + return array(); + + foreach ( (array) $headers as $header ) { + $url = esc_url_raw( wp_get_attachment_url( $header->ID ) ); + $header_data = wp_get_attachment_metadata( $header->ID ); + $header_index = $header->ID; + + $header_images[$header_index] = array(); + $header_images[$header_index]['attachment_id'] = $header->ID; + $header_images[$header_index]['url'] = $url; + $header_images[$header_index]['thumbnail_url'] = $url; + $header_images[$header_index]['alt_text'] = get_post_meta( $header->ID, '_wp_attachment_image_alt', true ); + + if ( isset( $header_data['width'] ) ) + $header_images[$header_index]['width'] = $header_data['width']; + if ( isset( $header_data['height'] ) ) + $header_images[$header_index]['height'] = $header_data['height']; + } - if ( !isset($mods[$name]) ) - return; + return $header_images; +} - unset($mods[$name]); +/** + * Get the header image data. + * + * @since 3.4.0 + * + * @global array $_wp_default_headers + * + * @return object + */ +function get_custom_header() { + global $_wp_default_headers; - if ( empty($mods) ) - return remove_theme_mods(); + if ( is_random_header_image() ) { + $data = _get_random_header_data(); + } else { + $data = get_theme_mod( 'header_image_data' ); + if ( ! $data && current_theme_supports( 'custom-header', 'default-image' ) ) { + $directory_args = array( get_template_directory_uri(), get_stylesheet_directory_uri() ); + $data = array(); + $data['url'] = $data['thumbnail_url'] = vsprintf( get_theme_support( 'custom-header', 'default-image' ), $directory_args ); + if ( ! empty( $_wp_default_headers ) ) { + foreach ( (array) $_wp_default_headers as $default_header ) { + $url = vsprintf( $default_header['url'], $directory_args ); + if ( $data['url'] == $url ) { + $data = $default_header; + $data['url'] = $url; + $data['thumbnail_url'] = vsprintf( $data['thumbnail_url'], $directory_args ); + break; + } + } + } + } + } - update_option("mods_$theme", $mods); - wp_cache_delete("mods_$theme", 'options'); + $default = array( + 'url' => '', + 'thumbnail_url' => '', + 'width' => get_theme_support( 'custom-header', 'width' ), + 'height' => get_theme_support( 'custom-header', 'height' ), + 'video' => get_theme_support( 'custom-header', 'video' ), + ); + return (object) wp_parse_args( $data, $default ); } -function remove_theme_mods() { - $theme = get_current_theme(); +/** + * Register a selection of default headers to be displayed by the custom header admin UI. + * + * @since 3.0.0 + * + * @global array $_wp_default_headers + * + * @param array $headers Array of headers keyed by a string id. The ids point to arrays containing 'url', 'thumbnail_url', and 'description' keys. + */ +function register_default_headers( $headers ) { + global $_wp_default_headers; - delete_option("mods_$theme"); + $_wp_default_headers = array_merge( (array) $_wp_default_headers, (array) $headers ); } -function get_header_textcolor() { - return get_theme_mod('header_textcolor', HEADER_TEXTCOLOR); +/** + * Unregister default headers. + * + * This function must be called after register_default_headers() has already added the + * header you want to remove. + * + * @see register_default_headers() + * @since 3.0.0 + * + * @global array $_wp_default_headers + * + * @param string|array $header The header string id (key of array) to remove, or an array thereof. + * @return bool|void A single header returns true on success, false on failure. + * There is currently no return value for multiple headers. + */ +function unregister_default_headers( $header ) { + global $_wp_default_headers; + if ( is_array( $header ) ) { + array_map( 'unregister_default_headers', $header ); + } elseif ( isset( $_wp_default_headers[ $header ] ) ) { + unset( $_wp_default_headers[ $header ] ); + return true; + } else { + return false; + } } -function header_textcolor() { - echo get_header_textcolor(); +/** + * Check whether a header video is set or not. + * + * @since 4.7.0 + * + * @see get_header_video_url() + * + * @return bool Whether a header video is set or not. + */ +function has_header_video() { + return (bool) get_header_video_url(); } -function get_header_image() { - return get_theme_mod('header_image', HEADER_IMAGE); -} +/* Retrieve header video URL for custom header. + * + * Uses a local video if present, or falls back to an external video. Returns false if there is no video. + * + * @since 4.7.0 + * + * @return string|false + */ +function get_header_video_url() { + $id = absint( get_theme_mod( 'header_video' ) ); + $url = esc_url( get_theme_mod( 'external_header_video' ) ); -function header_image() { - echo get_header_image(); -} + if ( ! $id && ! $url ) { + return false; + } -function add_custom_image_header($header_callback, $admin_header_callback) { - if ( ! empty($header_callback) ) - add_action('wp_head', $header_callback); + if ( $id ) { + // Get the file URL from the attachment ID. + $url = wp_get_attachment_url( $id ); + } - if ( ! is_admin() ) + return esc_url_raw( set_url_scheme( $url ) ); +} + +/** + * Display header video URL. + * + * @since 4.7.0 + */ +function the_header_video_url() { + $video = get_header_video_url(); + if ( $video ) { + echo esc_url( $video ); + } +} + +/** + * Retrieve header video settings. + * + * @since 4.7.0 + * + * @return array + */ +function get_header_video_settings() { + $header = get_custom_header(); + $video_url = get_header_video_url(); + $video_type = wp_check_filetype( $video_url, wp_get_mime_types() ); + + $settings = array( + 'mimeType' => '', + 'posterUrl' => get_header_image(), + 'videoUrl' => $video_url, + 'width' => absint( $header->width ), + 'height' => absint( $header->height ), + 'minWidth' => 900, + 'minHeight' => 500, + 'l10n' => array( + 'pause' => __( 'Pause' ), + 'play' => __( 'Play' ), + 'pauseSpeak' => __( 'Video is paused.'), + 'playSpeak' => __( 'Video is playing.'), + ), + ); + + if ( preg_match( '#^https?://(?:www\.)?(?:youtube\.com/watch|youtu\.be/)#', $video_url ) ) { + $settings['mimeType'] = 'video/x-youtube'; + } elseif ( ! empty( $video_type['type'] ) ) { + $settings['mimeType'] = $video_type['type']; + } + + return apply_filters( 'header_video_settings', $settings ); +} + +/** + * Check whether a custom header is set or not. + * + * @since 4.7.0 + * + * @return bool True if a custom header is set. False if not. + */ +function has_custom_header() { + if ( has_header_image() || ( has_header_video() && is_header_video_active() ) ) { + return true; + } + + return false; +} + +/** + * Checks whether the custom header video is eligible to show on the current page. + * + * @since 4.7.0 + * + * @return bool True if the custom header video should be shown. False if not. + */ +function is_header_video_active() { + if ( ! get_theme_support( 'custom-header', 'video' ) ) { + return false; + } + + $video_active_cb = get_theme_support( 'custom-header', 'video-active-callback' ); + + if ( empty( $video_active_cb ) || ! is_callable( $video_active_cb ) ) { + $show_video = true; + } else { + $show_video = call_user_func( $video_active_cb ); + } + + /** + * Modify whether the custom header video is eligible to show on the current page. + * + * @since 4.7.0 + * + * @param bool $show_video Whether the custom header video should be shown. Returns the value + * of the theme setting for the `custom-header`'s `video-active-callback`. + * If no callback is set, the default value is that of `is_front_page()`. + */ + return apply_filters( 'is_header_video_active', $show_video ); +} + +/** + * Retrieve the markup for a custom header. + * + * The container div will always be returned in the Customizer preview. + * + * @since 4.7.0 + * + * @return string The markup for a custom header on success. + */ +function get_custom_header_markup() { + if ( ! has_custom_header() && ! is_customize_preview() ) { + return ''; + } + + return sprintf( + '
+ * add_filter( 'customize_value_custom_css', function( $value, $setting ) {
+ * $post = wp_get_custom_css_post( $setting->stylesheet );
+ * if ( $post && ! empty( $post->post_content_filtered ) ) {
+ * $css = $post->post_content_filtered;
+ * }
+ * return $css;
+ * }, 10, 2 );
+ *
+ *
+ * @since 4.7.0
+ * @param array $data {
+ * Custom CSS data.
+ *
+ * @type string $css CSS stored in `post_content`.
+ * @type string $preprocessed Pre-processed CSS stored in `post_content_filtered`. Normally empty string.
+ * }
+ * @param array $args {
+ * The args passed into `wp_update_custom_css_post()` merged with defaults.
+ *
+ * @type string $css The original CSS passed in to be updated.
+ * @type string $preprocessed The original preprocessed CSS passed in to be updated.
+ * @type string $stylesheet The stylesheet (theme) being updated.
+ * }
+ */
+ $data = apply_filters( 'update_custom_css_data', $data, array_merge( $args, compact( 'css' ) ) );
+
+ $post_data = array(
+ 'post_title' => $args['stylesheet'],
+ 'post_name' => sanitize_title( $args['stylesheet'] ),
+ 'post_type' => 'custom_css',
+ 'post_status' => 'publish',
+ 'post_content' => $data['css'],
+ 'post_content_filtered' => $data['preprocessed'],
+ );
+
+ // Update post if it already exists, otherwise create a new one.
+ $post = wp_get_custom_css_post( $args['stylesheet'] );
+ if ( $post ) {
+ $post_data['ID'] = $post->ID;
+ $r = wp_update_post( wp_slash( $post_data ), true );
+ } else {
+ $r = wp_insert_post( wp_slash( $post_data ), true );
+
+ if ( ! is_wp_error( $r ) ) {
+ if ( get_stylesheet() === $args['stylesheet'] ) {
+ set_theme_mod( 'custom_css_post_id', $r );
+ }
+
+ // Trigger creation of a revision. This should be removed once #30854 is resolved.
+ if ( 0 === count( wp_get_post_revisions( $r ) ) ) {
+ wp_save_post_revision( $r );
+ }
+ }
+ }
+
+ if ( is_wp_error( $r ) ) {
+ return $r;
+ }
+ return get_post( $r );
+}
+
+/**
+ * Add callback for custom TinyMCE editor stylesheets.
+ *
+ * The parameter $stylesheet is the name of the stylesheet, relative to
+ * the theme root. It also accepts an array of stylesheets.
+ * It is optional and defaults to 'editor-style.css'.
+ *
+ * This function automatically adds another stylesheet with -rtl prefix, e.g. editor-style-rtl.css.
+ * If that file doesn't exist, it is removed before adding the stylesheet(s) to TinyMCE.
+ * If an array of stylesheets is passed to add_editor_style(),
+ * RTL is only added for the first stylesheet.
+ *
+ * Since version 3.4 the TinyMCE body has .rtl CSS class.
+ * It is a better option to use that class and add any RTL styles to the main stylesheet.
+ *
+ * @since 3.0.0
+ *
+ * @global array $editor_styles
+ *
+ * @param array|string $stylesheet Optional. Stylesheet name or array thereof, relative to theme root.
+ * Defaults to 'editor-style.css'
+ */
+function add_editor_style( $stylesheet = 'editor-style.css' ) {
+ add_theme_support( 'editor-style' );
+
+ if ( ! is_admin() )
+ return;
+
+ global $editor_styles;
+ $editor_styles = (array) $editor_styles;
+ $stylesheet = (array) $stylesheet;
+ if ( is_rtl() ) {
+ $rtl_stylesheet = str_replace('.css', '-rtl.css', $stylesheet[0]);
+ $stylesheet[] = $rtl_stylesheet;
+ }
+
+ $editor_styles = array_merge( $editor_styles, $stylesheet );
+}
+
+/**
+ * Removes all visual editor stylesheets.
+ *
+ * @since 3.1.0
+ *
+ * @global array $editor_styles
+ *
+ * @return bool True on success, false if there were no stylesheets to remove.
+ */
+function remove_editor_styles() {
+ if ( ! current_theme_supports( 'editor-style' ) )
+ return false;
+ _remove_theme_support( 'editor-style' );
+ if ( is_admin() )
+ $GLOBALS['editor_styles'] = array();
+ return true;
+}
+
+/**
+ * Retrieve any registered editor stylesheets
+ *
+ * @since 4.0.0
+ *
+ * @global array $editor_styles Registered editor stylesheets
+ *
+ * @return array If registered, a list of editor stylesheet URLs.
+ */
+function get_editor_stylesheets() {
+ $stylesheets = array();
+ // load editor_style.css if the current theme supports it
+ if ( ! empty( $GLOBALS['editor_styles'] ) && is_array( $GLOBALS['editor_styles'] ) ) {
+ $editor_styles = $GLOBALS['editor_styles'];
+
+ $editor_styles = array_unique( array_filter( $editor_styles ) );
+ $style_uri = get_stylesheet_directory_uri();
+ $style_dir = get_stylesheet_directory();
+
+ // Support externally referenced styles (like, say, fonts).
+ foreach ( $editor_styles as $key => $file ) {
+ if ( preg_match( '~^(https?:)?//~', $file ) ) {
+ $stylesheets[] = esc_url_raw( $file );
+ unset( $editor_styles[ $key ] );
+ }
+ }
+
+ // Look in a parent theme first, that way child theme CSS overrides.
+ if ( is_child_theme() ) {
+ $template_uri = get_template_directory_uri();
+ $template_dir = get_template_directory();
+
+ foreach ( $editor_styles as $key => $file ) {
+ if ( $file && file_exists( "$template_dir/$file" ) ) {
+ $stylesheets[] = "$template_uri/$file";
+ }
+ }
+ }
+
+ foreach ( $editor_styles as $file ) {
+ if ( $file && file_exists( "$style_dir/$file" ) ) {
+ $stylesheets[] = "$style_uri/$file";
+ }
+ }
+ }
+
+ /**
+ * Filters the array of stylesheets applied to the editor.
+ *
+ * @since 4.3.0
+ *
+ * @param array $stylesheets Array of stylesheets to be applied to the editor.
+ */
+ return apply_filters( 'editor_stylesheets', $stylesheets );
+}
+
+/**
+ * Expand a theme's starter content configuration using core-provided data.
+ *
+ * @since 4.7.0
+ *
+ * @return array Array of starter content.
+ */
+function get_theme_starter_content() {
+ $theme_support = get_theme_support( 'starter-content' );
+ if ( is_array( $theme_support ) && ! empty( $theme_support[0] ) && is_array( $theme_support[0] ) ) {
+ $config = $theme_support[0];
+ } else {
+ $config = array();
+ }
+
+ $core_content = array(
+ 'widgets' => array(
+ 'text_business_info' => array( 'text', array(
+ 'title' => _x( 'Find Us', 'Theme starter content' ),
+ 'text' => join( '', array(
+ '' . _x( 'Address', 'Theme starter content' ) . '
',
+ _x( '123 Main Street', 'Theme starter content' ) . '
' . _x( 'New York, NY 10001', 'Theme starter content' ) . '
' . _x( 'Hours', 'Theme starter content' ) . '
',
+ _x( 'Monday—Friday: 9:00AM–5:00PM', 'Theme starter content' ) . '
' . _x( 'Saturday & Sunday: 11:00AM–3:00PM', 'Theme starter content' ) . '
title-tag
', 'wp_loaded
' ), '4.1.0' );
+
+ return false;
+ }
+ }
+
+ $_wp_theme_features[ $feature ] = $args;
+}
+
+/**
+ * Registers the internal custom header and background routines.
+ *
+ * @since 3.4.0
+ * @access private
+ *
+ * @global Custom_Image_Header $custom_image_header
+ * @global Custom_Background $custom_background
+ */
+function _custom_header_background_just_in_time() {
+ global $custom_image_header, $custom_background;
+
+ if ( current_theme_supports( 'custom-header' ) ) {
+ // In case any constants were defined after an add_custom_image_header() call, re-run.
+ add_theme_support( 'custom-header', array( '__jit' => true ) );
+
+ $args = get_theme_support( 'custom-header' );
+ if ( $args[0]['wp-head-callback'] )
+ add_action( 'wp_head', $args[0]['wp-head-callback'] );
+
+ if ( is_admin() ) {
+ require_once( ABSPATH . 'wp-admin/custom-header.php' );
+ $custom_image_header = new Custom_Image_Header( $args[0]['admin-head-callback'], $args[0]['admin-preview-callback'] );
+ }
+ }
+
+ if ( current_theme_supports( 'custom-background' ) ) {
+ // In case any constants were defined after an add_custom_background() call, re-run.
+ add_theme_support( 'custom-background', array( '__jit' => true ) );
+
+ $args = get_theme_support( 'custom-background' );
+ add_action( 'wp_head', $args[0]['wp-head-callback'] );
+
+ if ( is_admin() ) {
+ require_once( ABSPATH . 'wp-admin/custom-background.php' );
+ $custom_background = new Custom_Background( $args[0]['admin-head-callback'], $args[0]['admin-preview-callback'] );
+ }
+ }
+}
+
+/**
+ * Adds CSS to hide header text for custom logo, based on Customizer setting.
+ *
+ * @since 4.5.0
+ * @access private
+ */
+function _custom_logo_header_styles() {
+ if ( ! current_theme_supports( 'custom-header', 'header-text' ) && get_theme_support( 'custom-logo', 'header-text' ) && ! get_theme_mod( 'header_text', true ) ) {
+ $classes = (array) get_theme_support( 'custom-logo', 'header-text' );
+ $classes = array_map( 'sanitize_html_class', $classes );
+ $classes = '.' . implode( ', .', $classes );
+
+ ?>
+
+
+ false ) );
+ return; // Do not continue - custom-header-uploads no longer exists.
+ }
+
+ if ( ! isset( $_wp_theme_features[ $feature ] ) )
+ return false;
+
+ switch ( $feature ) {
+ case 'custom-header' :
+ if ( ! did_action( 'wp_loaded' ) )
+ break;
+ $support = get_theme_support( 'custom-header' );
+ if ( isset( $support[0]['wp-head-callback'] ) ) {
+ remove_action( 'wp_head', $support[0]['wp-head-callback'] );
+ }
+ if ( isset( $GLOBALS['custom_image_header'] ) ) {
+ remove_action( 'admin_menu', array( $GLOBALS['custom_image_header'], 'init' ) );
+ unset( $GLOBALS['custom_image_header'] );
+ }
+ break;
+
+ case 'custom-background' :
+ if ( ! did_action( 'wp_loaded' ) )
+ break;
+ $support = get_theme_support( 'custom-background' );
+ remove_action( 'wp_head', $support[0]['wp-head-callback'] );
+ remove_action( 'admin_menu', array( $GLOBALS['custom_background'], 'init' ) );
+ unset( $GLOBALS['custom_background'] );
+ break;
+ }
+
+ unset( $_wp_theme_features[ $feature ] );
+ return true;
+}
+
+/**
+ * Checks a theme's support for a given feature
+ *
+ * @since 2.9.0
+ *
+ * @global array $_wp_theme_features
+ *
+ * @param string $feature the feature being checked
+ * @return bool
+ */
+function current_theme_supports( $feature ) {
+ global $_wp_theme_features;
+
+ if ( 'custom-header-uploads' == $feature )
+ return current_theme_supports( 'custom-header', 'uploads' );
+
+ if ( !isset( $_wp_theme_features[$feature] ) )
+ return false;
+
+ // If no args passed then no extra checks need be performed
+ if ( func_num_args() <= 1 )
+ return true;
+
+ $args = array_slice( func_get_args(), 1 );
+
+ switch ( $feature ) {
+ case 'post-thumbnails':
+ // post-thumbnails can be registered for only certain content/post types by passing
+ // an array of types to add_theme_support(). If no array was passed, then
+ // any type is accepted
+ if ( true === $_wp_theme_features[$feature] ) // Registered for all types
+ return true;
+ $content_type = $args[0];
+ return in_array( $content_type, $_wp_theme_features[$feature][0] );
+
+ case 'html5':
+ case 'post-formats':
+ // specific post formats can be registered by passing an array of types to
+ // add_theme_support()
+
+ // Specific areas of HTML5 support *must* be passed via an array to add_theme_support()
+
+ $type = $args[0];
+ return in_array( $type, $_wp_theme_features[$feature][0] );
+
+ case 'custom-logo':
+ case 'custom-header':
+ case 'custom-background':
+ // Specific capabilities can be registered by passing an array to add_theme_support().
+ return ( isset( $_wp_theme_features[ $feature ][0][ $args[0] ] ) && $_wp_theme_features[ $feature ][0][ $args[0] ] );
+ }
+
+ /**
+ * Filters whether the current theme supports a specific feature.
+ *
+ * The dynamic portion of the hook name, `$feature`, refers to the specific theme
+ * feature. Possible values include 'post-formats', 'post-thumbnails', 'custom-background',
+ * 'custom-header', 'menus', 'automatic-feed-links', 'html5',
+ * 'starter-content', and 'customize-selective-refresh-widgets'.
+ *
+ * @since 3.4.0
+ *
+ * @param bool true Whether the current theme supports the given feature. Default true.
+ * @param array $args Array of arguments for the feature.
+ * @param string $feature The theme feature.
+ */
+ return apply_filters( "current_theme_supports-{$feature}", true, $args, $_wp_theme_features[$feature] );
+}
+
+/**
+ * Checks a theme's support for a given feature before loading the functions which implement it.
+ *
+ * @since 2.9.0
+ *
+ * @param string $feature The feature being checked.
+ * @param string $include Path to the file.
+ * @return bool True if the current theme supports the supplied feature, false otherwise.
+ */
+function require_if_theme_supports( $feature, $include ) {
+ if ( current_theme_supports( $feature ) ) {
+ require ( $include );
+ return true;
+ }
+ return false;
+}
+
+/**
+ * Checks an attachment being deleted to see if it's a header or background image.
+ *
+ * If true it removes the theme modification which would be pointing at the deleted
+ * attachment.
+ *
+ * @access private
+ * @since 3.0.0
+ * @since 4.3.0 Also removes `header_image_data`.
+ * @since 4.5.0 Also removes custom logo theme mods.
+ *
+ * @param int $id The attachment id.
+ */
+function _delete_attachment_theme_mod( $id ) {
+ $attachment_image = wp_get_attachment_url( $id );
+ $header_image = get_header_image();
+ $background_image = get_background_image();
+ $custom_logo_id = get_theme_mod( 'custom_logo' );
+
+ if ( $custom_logo_id && $custom_logo_id == $id ) {
+ remove_theme_mod( 'custom_logo' );
+ remove_theme_mod( 'header_text' );
+ }
+
+ if ( $header_image && $header_image == $attachment_image ) {
+ remove_theme_mod( 'header_image' );
+ remove_theme_mod( 'header_image_data' );
+ }
+
+ if ( $background_image && $background_image == $attachment_image ) {
+ remove_theme_mod( 'background_image' );
+ }
+}
+
+/**
+ * Checks if a theme has been changed and runs 'after_switch_theme' hook on the next WP load.
+ *
+ * See {@see 'after_switch_theme'}.
+ *
+ * @since 3.3.0
+ */
+function check_theme_switched() {
+ if ( $stylesheet = get_option( 'theme_switched' ) ) {
+ $old_theme = wp_get_theme( $stylesheet );
+
+ // Prevent retrieve_widgets() from running since Customizer already called it up front
+ if ( get_option( 'theme_switched_via_customizer' ) ) {
+ remove_action( 'after_switch_theme', '_wp_sidebars_changed' );
+ update_option( 'theme_switched_via_customizer', false );
+ }
+
+ if ( $old_theme->exists() ) {
+ /**
+ * Fires on the first WP load after a theme switch if the old theme still exists.
+ *
+ * This action fires multiple times and the parameters differs
+ * according to the context, if the old theme exists or not.
+ * If the old theme is missing, the parameter will be the slug
+ * of the old theme.
+ *
+ * @since 3.3.0
+ *
+ * @param string $old_name Old theme name.
+ * @param WP_Theme $old_theme WP_Theme instance of the old theme.
+ */
+ do_action( 'after_switch_theme', $old_theme->get( 'Name' ), $old_theme );
+ } else {
+ /** This action is documented in wp-includes/theme.php */
+ do_action( 'after_switch_theme', $stylesheet );
+ }
+ flush_rewrite_rules();
+
+ update_option( 'theme_switched', false );
+ }
+}
+
+/**
+ * Includes and instantiates the WP_Customize_Manager class.
+ *
+ * Loads the Customizer at plugins_loaded when accessing the customize.php admin
+ * page or when any request includes a wp_customize=on param or a customize_changeset
+ * param (a UUID). This param is a signal for whether to bootstrap the Customizer when
+ * WordPress is loading, especially in the Customizer preview
+ * or when making Customizer Ajax requests for widgets or menus.
+ *
+ * @since 3.4.0
+ *
+ * @global WP_Customize_Manager $wp_customize
+ */
+function _wp_customize_include() {
+
+ $is_customize_admin_page = ( is_admin() && 'customize.php' == basename( $_SERVER['PHP_SELF'] ) );
+ $should_include = (
+ $is_customize_admin_page
+ ||
+ ( isset( $_REQUEST['wp_customize'] ) && 'on' == $_REQUEST['wp_customize'] )
+ ||
+ ( ! empty( $_GET['customize_changeset_uuid'] ) || ! empty( $_POST['customize_changeset_uuid'] ) )
+ );
+
+ if ( ! $should_include ) {
+ return;
+ }
+
+ /*
+ * Note that wp_unslash() is not being used on the input vars because it is
+ * called before wp_magic_quotes() gets called. Besides this fact, none of
+ * the values should contain any characters needing slashes anyway.
+ */
+ $keys = array( 'changeset_uuid', 'customize_changeset_uuid', 'customize_theme', 'theme', 'customize_messenger_channel' );
+ $input_vars = array_merge(
+ wp_array_slice_assoc( $_GET, $keys ),
+ wp_array_slice_assoc( $_POST, $keys )
+ );
+
+ $theme = null;
+ $changeset_uuid = null;
+ $messenger_channel = null;
+
+ if ( $is_customize_admin_page && isset( $input_vars['changeset_uuid'] ) ) {
+ $changeset_uuid = sanitize_key( $input_vars['changeset_uuid'] );
+ } elseif ( ! empty( $input_vars['customize_changeset_uuid'] ) ) {
+ $changeset_uuid = sanitize_key( $input_vars['customize_changeset_uuid'] );
+ }
+
+ // Note that theme will be sanitized via WP_Theme.
+ if ( $is_customize_admin_page && isset( $input_vars['theme'] ) ) {
+ $theme = $input_vars['theme'];
+ } elseif ( isset( $input_vars['customize_theme'] ) ) {
+ $theme = $input_vars['customize_theme'];
+ }
+ if ( isset( $input_vars['customize_messenger_channel'] ) ) {
+ $messenger_channel = sanitize_key( $input_vars['customize_messenger_channel'] );
+ }
+
+ require_once ABSPATH . WPINC . '/class-wp-customize-manager.php';
+ $GLOBALS['wp_customize'] = new WP_Customize_Manager( compact( 'changeset_uuid', 'theme', 'messenger_channel' ) );
+}
+
+/**
+ * Publish a snapshot's changes.
+ *
+ * @param string $new_status New post status.
+ * @param string $old_status Old post status.
+ * @param WP_Post $changeset_post Changeset post object.
+ */
+function _wp_customize_publish_changeset( $new_status, $old_status, $changeset_post ) {
+ global $wp_customize, $wpdb;
+
+ $is_publishing_changeset = (
+ 'customize_changeset' === $changeset_post->post_type
+ &&
+ 'publish' === $new_status
+ &&
+ 'publish' !== $old_status
+ );
+ if ( ! $is_publishing_changeset ) {
+ return;
+ }
+
+ if ( empty( $wp_customize ) ) {
+ require_once ABSPATH . WPINC . '/class-wp-customize-manager.php';
+ $wp_customize = new WP_Customize_Manager( array( 'changeset_uuid' => $changeset_post->post_name ) );
+ }
+
+ if ( ! did_action( 'customize_register' ) ) {
+ /*
+ * When running from CLI or Cron, the customize_register action will need
+ * to be triggered in order for core, themes, and plugins to register their
+ * settings. Normally core will add_action( 'customize_register' ) at
+ * priority 10 to register the core settings, and if any themes/plugins
+ * also add_action( 'customize_register' ) at the same priority, they
+ * will have a $wp_customize with those settings registered since they
+ * call add_action() afterward, normally. However, when manually doing
+ * the customize_register action after the setup_theme, then the order
+ * will be reversed for two actions added at priority 10, resulting in
+ * the core settings no longer being available as expected to themes/plugins.
+ * So the following manually calls the method that registers the core
+ * settings up front before doing the action.
+ */
+ remove_action( 'customize_register', array( $wp_customize, 'register_controls' ) );
+ $wp_customize->register_controls();
+
+ /** This filter is documented in /wp-includes/class-wp-customize-manager.php */
+ do_action( 'customize_register', $wp_customize );
+ }
+ $wp_customize->_publish_changeset_values( $changeset_post->ID ) ;
+
+ /*
+ * Trash the changeset post if revisions are not enabled. Unpublished
+ * changesets by default get garbage collected due to the auto-draft status.
+ * When a changeset post is published, however, it would no longer get cleaned
+ * out. Ths is a problem when the changeset posts are never displayed anywhere,
+ * since they would just be endlessly piling up. So here we use the revisions
+ * feature to indicate whether or not a published changeset should get trashed
+ * and thus garbage collected.
+ */
+ if ( ! wp_revisions_enabled( $changeset_post ) ) {
+ $post = $changeset_post;
+ $post_id = $changeset_post->ID;
+
+ /*
+ * The following re-formulates the logic from wp_trash_post() as done in
+ * wp_publish_post(). The reason for bypassing wp_trash_post() is that it
+ * will mutate the the post_content and the post_name when they should be
+ * untouched.
+ */
+ if ( ! EMPTY_TRASH_DAYS ) {
+ wp_delete_post( $post_id, true );
+ } else {
+ /** This action is documented in wp-includes/post.php */
+ do_action( 'wp_trash_post', $post_id );
+
+ add_post_meta( $post_id, '_wp_trash_meta_status', $post->post_status );
+ add_post_meta( $post_id, '_wp_trash_meta_time', time() );
+
+ $old_status = $post->post_status;
+ $new_status = 'trash';
+ $wpdb->update( $wpdb->posts, array( 'post_status' => $new_status ), array( 'ID' => $post->ID ) );
+ clean_post_cache( $post->ID );
+
+ $post->post_status = $new_status;
+ wp_transition_post_status( $new_status, $old_status, $post );
+
+ /** This action is documented in wp-includes/post.php */
+ do_action( 'edit_post', $post->ID, $post );
+
+ /** This action is documented in wp-includes/post.php */
+ do_action( "save_post_{$post->post_type}", $post->ID, $post, true );
+
+ /** This action is documented in wp-includes/post.php */
+ do_action( 'save_post', $post->ID, $post, true );
+
+ /** This action is documented in wp-includes/post.php */
+ do_action( 'wp_insert_post', $post->ID, $post, true );
+
+ /** This action is documented in wp-includes/post.php */
+ do_action( 'trashed_post', $post_id );
+ }
+ }
+}
+
+/**
+ * Filters changeset post data upon insert to ensure post_name is intact.
+ *
+ * This is needed to prevent the post_name from being dropped when the post is
+ * transitioned into pending status by a contributor.
+ *
+ * @since 4.7.0
+ * @see wp_insert_post()
+ *
+ * @param array $post_data An array of slashed post data.
+ * @param array $supplied_post_data An array of sanitized, but otherwise unmodified post data.
+ * @returns array Filtered data.
+ */
+function _wp_customize_changeset_filter_insert_post_data( $post_data, $supplied_post_data ) {
+ if ( isset( $post_data['post_type'] ) && 'customize_changeset' === $post_data['post_type'] ) {
+
+ // Prevent post_name from being dropped, such as when contributor saves a changeset post as pending.
+ if ( empty( $post_data['post_name'] ) && ! empty( $supplied_post_data['post_name'] ) ) {
+ $post_data['post_name'] = $supplied_post_data['post_name'];
+ }
+ }
+ return $post_data;
+}
+
+/**
+ * Adds settings for the customize-loader script.
+ *
+ * @since 3.4.0
+ */
+function _wp_customize_loader_settings() {
+ $admin_origin = parse_url( admin_url() );
+ $home_origin = parse_url( home_url() );
+ $cross_domain = ( strtolower( $admin_origin[ 'host' ] ) != strtolower( $home_origin[ 'host' ] ) );
+
+ $browser = array(
+ 'mobile' => wp_is_mobile(),
+ 'ios' => wp_is_mobile() && preg_match( '/iPad|iPod|iPhone/', $_SERVER['HTTP_USER_AGENT'] ),
+ );
+
+ $settings = array(
+ 'url' => esc_url( admin_url( 'customize.php' ) ),
+ 'isCrossDomain' => $cross_domain,
+ 'browser' => $browser,
+ 'l10n' => array(
+ 'saveAlert' => __( 'The changes you made will be lost if you navigate away from this page.' ),
+ 'mainIframeTitle' => __( 'Customizer' ),
+ ),
+ );
+
+ $script = 'var _wpCustomizeLoaderSettings = ' . wp_json_encode( $settings ) . ';';
+
+ $wp_scripts = wp_scripts();
+ $data = $wp_scripts->get_data( 'customize-loader', 'data' );
+ if ( $data )
+ $script = "$data\n$script";
+
+ $wp_scripts->add_data( 'customize-loader', 'data', $script );
+}
+
+/**
+ * Returns a URL to load the Customizer.
+ *
+ * @since 3.4.0
+ *
+ * @param string $stylesheet Optional. Theme to customize. Defaults to current theme.
+ * The theme's stylesheet will be urlencoded if necessary.
+ * @return string
+ */
+function wp_customize_url( $stylesheet = null ) {
+ $url = admin_url( 'customize.php' );
+ if ( $stylesheet )
+ $url .= '?theme=' . urlencode( $stylesheet );
+ return esc_url( $url );
+}
+
+/**
+ * Prints a script to check whether or not the Customizer is supported,
+ * and apply either the no-customize-support or customize-support class
+ * to the body.
+ *
+ * This function MUST be called inside the body tag.
+ *
+ * Ideally, call this function immediately after the body tag is opened.
+ * This prevents a flash of unstyled content.
+ *
+ * It is also recommended that you add the "no-customize-support" class
+ * to the body tag by default.
+ *
+ * @since 3.4.0
+ * @since 4.7.0 Support for IE8 and below is explicitly removed via conditional comments.
+ */
+function wp_customize_support_script() {
+ $admin_origin = parse_url( admin_url() );
+ $home_origin = parse_url( home_url() );
+ $cross_domain = ( strtolower( $admin_origin[ 'host' ] ) != strtolower( $home_origin[ 'host' ] ) );
+
+ ?>
+
+
+
+
+ is_preview();
+}