URL to wp-content/themes. This forms the basis * for all other URLs returned by WP_Theme, so we pass it to the public function * get_theme_root_uri() and allow it to run the {@see 'theme_root_uri'} filter. * * @since 3.4.0 * * @return string Theme root URI. */ public function get_theme_root_uri() { if ( ! isset( $this->theme_root_uri ) ) { $this->theme_root_uri = get_theme_root_uri( $this->stylesheet, $this->theme_root ); } return $this->theme_root_uri; } /** * Returns the main screenshot file for the theme. * * The main screenshot is called screenshot.png. gif and jpg extensions are also allowed. * * Screenshots for a theme must be in the stylesheet directory. (In the case of child * themes, parent theme screenshots are not inherited.) * * @since 3.4.0 * * @param string $uri Type of URL to return, either 'relative' or an absolute URI. Defaults to absolute URI. * @return string|false Screenshot file. False if the theme does not have a screenshot. */ public function get_screenshot( $uri = 'uri' ) { $screenshot = $this->cache_get( 'screenshot' ); if ( $screenshot ) { if ( 'relative' === $uri ) { return $screenshot; } return $this->get_stylesheet_directory_uri() . '/' . $screenshot; } elseif ( 0 === $screenshot ) { return false; } foreach ( array( 'png', 'gif', 'jpg', 'jpeg', 'webp' ) as $ext ) { if ( file_exists( $this->get_stylesheet_directory() . "/screenshot.$ext" ) ) { $this->cache_add( 'screenshot', 'screenshot.' . $ext ); if ( 'relative' === $uri ) { return 'screenshot.' . $ext; } return $this->get_stylesheet_directory_uri() . '/' . 'screenshot.' . $ext; } } $this->cache_add( 'screenshot', 0 ); return false; } /** * Returns files in the theme's directory. * * @since 3.4.0 * * @param string[]|string $type Optional. Array of extensions to find, string of a single extension, * or null for all extensions. Default null. * @param int $depth Optional. How deep to search for files. Defaults to a flat scan (0 depth). * -1 depth is infinite. * @param bool $search_parent Optional. Whether to return parent files. Default false. * @return string[] Array of files, keyed by the path to the file relative to the theme's directory, with the values * being absolute paths. */ public function get_files( $type = null, $depth = 0, $search_parent = false ) { $files = (array) self::scandir( $this->get_stylesheet_directory(), $type, $depth ); if ( $search_parent && $this->parent() ) { $files += (array) self::scandir( $this->get_template_directory(), $type, $depth ); } return array_filter( $files ); } /** * Returns the theme's post templates. * * @since 4.7.0 * @since 5.8.0 Include block templates. * * @return array[] Array of page template arrays, keyed by post type and filename, * with the value of the translated header name. */ public function get_post_templates() { // If you screw up your active theme and we invalidate your parent, most things still work. Let it slide. if ( $this->errors() && $this->errors()->get_error_codes() !== array( 'theme_parent_invalid' ) ) { return array(); } $post_templates = $this->cache_get( 'post_templates' ); if ( ! is_array( $post_templates ) ) { $post_templates = array(); $files = (array) $this->get_files( 'php', 1, true ); foreach ( $files as $file => $full_path ) { if ( ! preg_match( '|Template Name:(.*)$|mi', file_get_contents( $full_path ), $header ) ) { continue; } $types = array( 'page' ); if ( preg_match( '|Template Post Type:(.*)$|mi', file_get_contents( $full_path ), $type ) ) { $types = explode( ',', _cleanup_header_comment( $type[1] ) ); } foreach ( $types as $type ) { $type = sanitize_key( $type ); if ( ! isset( $post_templates[ $type ] ) ) { $post_templates[ $type ] = array(); } $post_templates[ $type ][ $file ] = _cleanup_header_comment( $header[1] ); } } $this->cache_add( 'post_templates', $post_templates ); } if ( current_theme_supports( 'block-templates' ) ) { $block_templates = get_block_templates( array(), 'wp_template' ); foreach ( get_post_types( array( 'public' => true ) ) as $type ) { foreach ( $block_templates as $block_template ) { if ( ! $block_template->is_custom ) { continue; } if ( isset( $block_template->post_types ) && ! in_array( $type, $block_template->post_types, true ) ) { continue; } $post_templates[ $type ][ $block_template->slug ] = $block_template->title; } } } if ( $this->load_textdomain() ) { foreach ( $post_templates as &$post_type ) { foreach ( $post_type as &$post_template ) { $post_template = $this->translate_header( 'Template Name', $post_template ); } } } return $post_templates; } /** * Returns the theme's post templates for a given post type. * * @since 3.4.0 * @since 4.7.0 Added the `$post_type` parameter. * * @param WP_Post|null $post Optional. The post being edited, provided for context. * @param string $post_type Optional. Post type to get the templates for. Default 'page'. * If a post is provided, its post type is used. * @return string[] Array of template header names keyed by the template file name. */ public function get_page_templates( $post = null, $post_type = 'page' ) { if ( $post ) { $post_type = get_post_type( $post ); } $post_templates = $this->get_post_templates(); $post_templates = isset( $post_templates[ $post_type ] ) ? $post_templates[ $post_type ] : array(); /** * Filters list of page templates for a theme. * * @since 4.9.6 * * @param string[] $post_templates Array of template header names keyed by the template file name. * @param WP_Theme $theme The theme object. * @param WP_Post|null $post The post being edited, provided for context, or null. * @param string $post_type Post type to get the templates for. */ $post_templates = (array) apply_filters( 'theme_templates', $post_templates, $this, $post, $post_type ); /** * Filters list of page templates for a theme. * * The dynamic portion of the hook name, `$post_type`, refers to the post type. * * Possible hook names include: * * - `theme_post_templates` * - `theme_page_templates` * - `theme_attachment_templates` * * @since 3.9.0 * @since 4.4.0 Converted to allow complete control over the `$page_templates` array. * @since 4.7.0 Added the `$post_type` parameter. * * @param string[] $post_templates Array of template header names keyed by the template file name. * @param WP_Theme $theme The theme object. * @param WP_Post|null $post The post being edited, provided for context, or null. * @param string $post_type Post type to get the templates for. */ $post_templates = (array) apply_filters( "theme_{$post_type}_templates", $post_templates, $this, $post, $post_type ); return $post_templates; } /** * Scans a directory for files of a certain extension. * * @since 3.4.0 * * @param string $path Absolute path to search. * @param array|string|null $extensions Optional. Array of extensions to find, string of a single extension, * or null for all extensions. Default null. * @param int $depth Optional. How many levels deep to search for files. Accepts 0, 1+, or * -1 (infinite depth). Default 0. * @param string $relative_path Optional. The basename of the absolute path. Used to control the * returned path for the found files, particularly when this function * recurses to lower depths. Default empty. * @return string[]|false Array of files, keyed by the path to the file relative to the `$path` directory prepended * with `$relative_path`, with the values being absolute paths. False otherwise. */ private static function scandir( $path, $extensions = null, $depth = 0, $relative_path = '' ) { if ( ! is_dir( $path ) ) { return false; } if ( $extensions ) { $extensions = (array) $extensions; $_extensions = implode( '|', $extensions ); } $relative_path = trailingslashit( $relative_path ); if ( '/' === $relative_path ) { $relative_path = ''; } $results = scandir( $path ); $files = array(); /** * Filters the array of excluded directories and files while scanning theme folder. * * @since 4.7.4 * * @param string[] $exclusions Array of excluded directories and files. */ $exclusions = (array) apply_filters( 'theme_scandir_exclusions', array( 'CVS', 'node_modules', 'vendor', 'bower_components' ) ); foreach ( $results as $result ) { if ( '.' === $result[0] || in_array( $result, $exclusions, true ) ) { continue; } if ( is_dir( $path . '/' . $result ) ) { if ( ! $depth ) { continue; } $found = self::scandir( $path . '/' . $result, $extensions, $depth - 1, $relative_path . $result ); $files = array_merge_recursive( $files, $found ); } elseif ( ! $extensions || preg_match( '~\.(' . $_extensions . ')$~', $result ) ) { $files[ $relative_path . $result ] = $path . '/' . $result; } } return $files; } /** * Loads the theme's textdomain. * * Translation files are not inherited from the parent theme. TODO: If this fails for the * child theme, it should probably try to load the parent theme's translations. * * @since 3.4.0 * * @return bool True if the textdomain was successfully loaded or has already been loaded. * False if no textdomain was specified in the file headers, or if the domain could not be loaded. */ public function load_textdomain() { if ( isset( $this->textdomain_loaded ) ) { return $this->textdomain_loaded; } $textdomain = $this->get( 'TextDomain' ); if ( ! $textdomain ) { $this->textdomain_loaded = false; return false; } if ( is_textdomain_loaded( $textdomain ) ) { $this->textdomain_loaded = true; return true; } $path = $this->get_stylesheet_directory(); $domainpath = $this->get( 'DomainPath' ); if ( $domainpath ) { $path .= $domainpath; } else { $path .= '/languages'; } $this->textdomain_loaded = load_theme_textdomain( $textdomain, $path ); return $this->textdomain_loaded; } /** * Determines whether the theme is allowed (multisite only). * * @since 3.4.0 * * @param string $check Optional. Whether to check only the 'network'-wide settings, the 'site' * settings, or 'both'. Defaults to 'both'. * @param int $blog_id Optional. Ignored if only network-wide settings are checked. Defaults to current site. * @return bool Whether the theme is allowed for the network. Returns true in single-site. */ public function is_allowed( $check = 'both', $blog_id = null ) { if ( ! is_multisite() ) { return true; } if ( 'both' === $check || 'network' === $check ) { $allowed = self::get_allowed_on_network(); if ( ! empty( $allowed[ $this->get_stylesheet() ] ) ) { return true; } } if ( 'both' === $check || 'site' === $check ) { $allowed = self::get_allowed_on_site( $blog_id ); if ( ! empty( $allowed[ $this->get_stylesheet() ] ) ) { return true; } } return false; } /** * Returns whether this theme is a block-based theme or not. * * @since 5.9.0 * * @return bool */ public function is_block_theme() { if ( isset( $this->block_theme ) ) { return $this->block_theme; } $paths_to_index_block_template = array( $this->get_file_path( '/templates/index.html' ), $this->get_file_path( '/block-templates/index.html' ), ); $this->block_theme = false; foreach ( $paths_to_index_block_template as $path_to_index_block_template ) { if ( is_file( $path_to_index_block_template ) && is_readable( $path_to_index_block_template ) ) { $this->block_theme = true; break; } } return $this->block_theme; } /** * Retrieves the path of a file in the theme. * * Searches in the stylesheet directory before the template directory so themes * which inherit from a parent theme can just override one file. * * @since 5.9.0 * * @param string $file Optional. File to search for in the stylesheet directory. * @return string The path of the file. */ public function get_file_path( $file = '' ) { $file = ltrim( $file, '/' ); $stylesheet_directory = $this->get_stylesheet_directory(); $template_directory = $this->get_template_directory(); if ( empty( $file ) ) { $path = $stylesheet_directory; } elseif ( $stylesheet_directory !== $template_directory && file_exists( $stylesheet_directory . '/' . $file ) ) { $path = $stylesheet_directory . '/' . $file; } else { $path = $template_directory . '/' . $file; } /** This filter is documented in wp-includes/link-template.php */ return apply_filters( 'theme_file_path', $path, $file ); } /** * Determines the latest WordPress default theme that is installed. * * This hits the filesystem. * * @since 4.4.0 * * @return WP_Theme|false Object, or false if no theme is installed, which would be bad. */ public static function get_core_default_theme() { foreach ( array_reverse( self::$default_themes ) as $slug => $name ) { $theme = wp_get_theme( $slug ); if ( $theme->exists() ) { return $theme; } } return false; } /** * Returns array of stylesheet names of themes allowed on the site or network. * * @since 3.4.0 * * @param int $blog_id Optional. ID of the site. Defaults to the current site. * @return string[] Array of stylesheet names. */ public static function get_allowed( $blog_id = null ) { /** * Filters the array of themes allowed on the network. * * Site is provided as context so that a list of network allowed themes can * be filtered further. * * @since 4.5.0 * * @param string[] $allowed_themes An array of theme stylesheet names. * @param int $blog_id ID of the site. */ $network = (array) apply_filters( 'network_allowed_themes', self::get_allowed_on_network(), $blog_id ); return $network + self::get_allowed_on_site( $blog_id ); } /** * Returns array of stylesheet names of themes allowed on the network. * * @since 3.4.0 * * @return string[] Array of stylesheet names. */ public static function get_allowed_on_network() { static $allowed_themes; if ( ! isset( $allowed_themes ) ) { $allowed_themes = (array) get_site_option( 'allowedthemes' ); } /** * Filters the array of themes allowed on the network. * * @since MU (3.0.0) * * @param string[] $allowed_themes An array of theme stylesheet names. */ $allowed_themes = apply_filters( 'allowed_themes', $allowed_themes ); return $allowed_themes; } /** * Returns array of stylesheet names of themes allowed on the site. * * @since 3.4.0 * * @param int $blog_id Optional. ID of the site. Defaults to the current site. * @return string[] Array of stylesheet names. */ public static function get_allowed_on_site( $blog_id = null ) { static $allowed_themes = array(); if ( ! $blog_id || ! is_multisite() ) { $blog_id = get_current_blog_id(); } if ( isset( $allowed_themes[ $blog_id ] ) ) { /** * Filters the array of themes allowed on the site. * * @since 4.5.0 * * @param string[] $allowed_themes An array of theme stylesheet names. * @param int $blog_id ID of the site. Defaults to current site. */ return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id ); } $current = get_current_blog_id() == $blog_id; if ( $current ) { $allowed_themes[ $blog_id ] = get_option( 'allowedthemes' ); } else { switch_to_blog( $blog_id ); $allowed_themes[ $blog_id ] = get_option( 'allowedthemes' ); restore_current_blog(); } /* * This is all super old MU back compat joy. * 'allowedthemes' keys things by stylesheet. 'allowed_themes' keyed things by name. */ if ( false === $allowed_themes[ $blog_id ] ) { if ( $current ) { $allowed_themes[ $blog_id ] = get_option( 'allowed_themes' ); } else { switch_to_blog( $blog_id ); $allowed_themes[ $blog_id ] = get_option( 'allowed_themes' ); restore_current_blog(); } if ( ! is_array( $allowed_themes[ $blog_id ] ) || empty( $allowed_themes[ $blog_id ] ) ) { $allowed_themes[ $blog_id ] = array(); } else { $converted = array(); $themes = wp_get_themes(); foreach ( $themes as $stylesheet => $theme_data ) { if ( isset( $allowed_themes[ $blog_id ][ $theme_data->get( 'Name' ) ] ) ) { $converted[ $stylesheet ] = true; } } $allowed_themes[ $blog_id ] = $converted; } // Set the option so we never have to go through this pain again. if ( is_admin() && $allowed_themes[ $blog_id ] ) { if ( $current ) { update_option( 'allowedthemes', $allowed_themes[ $blog_id ] ); delete_option( 'allowed_themes' ); } else { switch_to_blog( $blog_id ); update_option( 'allowedthemes', $allowed_themes[ $blog_id ] ); delete_option( 'allowed_themes' ); restore_current_blog(); } } } /** This filter is documented in wp-includes/class-wp-theme.php */ return (array) apply_filters( 'site_allowed_themes', $allowed_themes[ $blog_id ], $blog_id ); } /** * Returns the folder names of the block template directories. * * @since 6.4.0 * * @return string[] { * Folder names used by block themes. * * @type string $wp_template Theme-relative directory name for block templates. * @type string $wp_template_part Theme-relative directory name for block template parts. * } */ public function get_block_template_folders() { // Return set/cached value if available. if ( isset( $this->block_template_folders ) ) { return $this->block_template_folders; } $this->block_template_folders = $this->default_template_folders; $stylesheet_directory = $this->get_stylesheet_directory(); // If the theme uses deprecated block template folders. if ( file_exists( $stylesheet_directory . '/block-templates' ) || file_exists( $stylesheet_directory . '/block-template-parts' ) ) { $this->block_template_folders = array( 'wp_template' => 'block-templates', 'wp_template_part' => 'block-template-parts', ); } return $this->block_template_folders; } /** * Gets block pattern data for a specified theme. * Each pattern is defined as a PHP file and defines * its metadata using plugin-style headers. The minimum required definition is: * * /** * * Title: My Pattern * * Slug: my-theme/my-pattern * * * * The output of the PHP source corresponds to the content of the pattern, e.g.: * *

Hello

* * If applicable, this will collect from both parent and child theme. * * Other settable fields include: * * - Description * - Viewport Width * - Inserter (yes/no) * - Categories (comma-separated values) * - Keywords (comma-separated values) * - Block Types (comma-separated values) * - Post Types (comma-separated values) * - Template Types (comma-separated values) * * @since 6.4.0 * * @return array Block pattern data. */ public function get_block_patterns() { $can_use_cached = ! wp_is_development_mode( 'theme' ); $pattern_data = $this->get_pattern_cache(); if ( is_array( $pattern_data ) ) { if ( $can_use_cached ) { return $pattern_data; } // If in development mode, clear pattern cache. $this->delete_pattern_cache(); } $dirpath = $this->get_stylesheet_directory() . '/patterns/'; $pattern_data = array(); if ( ! file_exists( $dirpath ) ) { if ( $can_use_cached ) { $this->set_pattern_cache( $pattern_data ); } return $pattern_data; } $files = glob( $dirpath . '*.php' ); if ( ! $files ) { if ( $can_use_cached ) { $this->set_pattern_cache( $pattern_data ); } return $pattern_data; } $default_headers = array( 'title' => 'Title', 'slug' => 'Slug', 'description' => 'Description', 'viewportWidth' => 'Viewport Width', 'inserter' => 'Inserter', 'categories' => 'Categories', 'keywords' => 'Keywords', 'blockTypes' => 'Block Types', 'postTypes' => 'Post Types', 'templateTypes' => 'Template Types', ); $properties_to_parse = array( 'categories', 'keywords', 'blockTypes', 'postTypes', 'templateTypes', ); foreach ( $files as $file ) { $pattern = get_file_data( $file, $default_headers ); if ( empty( $pattern['slug'] ) ) { _doing_it_wrong( __FUNCTION__, sprintf( /* translators: 1: file name. */ __( 'Could not register file "%s" as a block pattern ("Slug" field missing)' ), $file ), '6.0.0' ); continue; } if ( ! preg_match( '/^[A-z0-9\/_-]+$/', $pattern['slug'] ) ) { _doing_it_wrong( __FUNCTION__, sprintf( /* translators: 1: file name; 2: slug value found. */ __( 'Could not register file "%1$s" as a block pattern (invalid slug "%2$s")' ), $file, $pattern['slug'] ), '6.0.0' ); } // Title is a required property. if ( ! $pattern['title'] ) { _doing_it_wrong( __FUNCTION__, sprintf( /* translators: 1: file name. */ __( 'Could not register file "%s" as a block pattern ("Title" field missing)' ), $file ), '6.0.0' ); continue; } // For properties of type array, parse data as comma-separated. foreach ( $properties_to_parse as $property ) { if ( ! empty( $pattern[ $property ] ) ) { $pattern[ $property ] = array_filter( wp_parse_list( (string) $pattern[ $property ] ) ); } else { unset( $pattern[ $property ] ); } } // Parse properties of type int. $property = 'viewportWidth'; if ( ! empty( $pattern[ $property ] ) ) { $pattern[ $property ] = (int) $pattern[ $property ]; } else { unset( $pattern[ $property ] ); } // Parse properties of type bool. $property = 'inserter'; if ( ! empty( $pattern[ $property ] ) ) { $pattern[ $property ] = in_array( strtolower( $pattern[ $property ] ), array( 'yes', 'true' ), true ); } else { unset( $pattern[ $property ] ); } $key = str_replace( $dirpath, '', $file ); $pattern_data[ $key ] = $pattern; } if ( $can_use_cached ) { $this->set_pattern_cache( $pattern_data ); } return $pattern_data; } /** * Gets block pattern cache. * * @since 6.4.0 * * @return array|false Returns an array of patterns if cache is found, otherwise false. */ private function get_pattern_cache() { if ( ! $this->exists() ) { return false; } $pattern_data = wp_cache_get( 'wp_theme_patterns_' . $this->stylesheet ); if ( is_array( $pattern_data ) && $pattern_data['version'] === $this->get( 'Version' ) ) { return $pattern_data['patterns']; } return false; } /** * Sets block pattern cache. * * @since 6.4.0 * * @param array $patterns Block patterns data to set in cache. */ private function set_pattern_cache( array $patterns ) { $pattern_data = array( 'version' => $this->get( 'Version' ), 'patterns' => $patterns, ); wp_cache_set( 'wp_theme_patterns_' . $this->stylesheet, $pattern_data ); } /** * Clears block pattern cache. * * @since 6.4.0 */ public function delete_pattern_cache() { wp_cache_delete( 'wp_theme_patterns_' . $this->stylesheet ); } /** * Enables a theme for all sites on the current network. * * @since 4.6.0 * * @param string|string[] $stylesheets Stylesheet name or array of stylesheet names. */ public static function network_enable_theme( $stylesheets ) { if ( ! is_multisite() ) { return; } if ( ! is_array( $stylesheets ) ) { $stylesheets = array( $stylesheets ); } $allowed_themes = get_site_option( 'allowedthemes' ); foreach ( $stylesheets as $stylesheet ) { $allowed_themes[ $stylesheet ] = true; } update_site_option( 'allowedthemes', $allowed_themes ); } /** * Disables a theme for all sites on the current network. * * @since 4.6.0 * * @param string|string[] $stylesheets Stylesheet name or array of stylesheet names. */ public static function network_disable_theme( $stylesheets ) { if ( ! is_multisite() ) { return; } if ( ! is_array( $stylesheets ) ) { $stylesheets = array( $stylesheets ); } $allowed_themes = get_site_option( 'allowedthemes' ); foreach ( $stylesheets as $stylesheet ) { if ( isset( $allowed_themes[ $stylesheet ] ) ) { unset( $allowed_themes[ $stylesheet ] ); } } update_site_option( 'allowedthemes', $allowed_themes ); } /** * Sorts themes by name. * * @since 3.4.0 * * @param WP_Theme[] $themes Array of theme objects to sort (passed by reference). */ public static function sort_by_name( &$themes ) { if ( str_starts_with( get_user_locale(), 'en_' ) ) { uasort( $themes, array( 'WP_Theme', '_name_sort' ) ); } else { foreach ( $themes as $key => $theme ) { $theme->translate_header( 'Name', $theme->headers['Name'] ); } uasort( $themes, array( 'WP_Theme', '_name_sort_i18n' ) ); } } /** * Callback function for usort() to naturally sort themes by name. * * Accesses the Name header directly from the class for maximum speed. * Would choke on HTML but we don't care enough to slow it down with strip_tags(). * * @since 3.4.0 * * @param WP_Theme $a First theme. * @param WP_Theme $b Second theme. * @return int Negative if `$a` falls lower in the natural order than `$b`. Zero if they fall equally. * Greater than 0 if `$a` falls higher in the natural order than `$b`. Used with usort(). */ private static function _name_sort( $a, $b ) { return strnatcasecmp( $a->headers['Name'], $b->headers['Name'] ); } /** * Callback function for usort() to naturally sort themes by translated name. * * @since 3.4.0 * * @param WP_Theme $a First theme. * @param WP_Theme $b Second theme. * @return int Negative if `$a` falls lower in the natural order than `$b`. Zero if they fall equally. * Greater than 0 if `$a` falls higher in the natural order than `$b`. Used with usort(). */ private static function _name_sort_i18n( $a, $b ) { return strnatcasecmp( $a->name_translated, $b->name_translated ); } private static function _check_headers_property_has_correct_type( $headers ) { if ( ! is_array( $headers ) ) { return false; } foreach ( $headers as $key => $value ) { if ( ! is_string( $key ) || ! is_string( $value ) ) { return false; } } return true; } }