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theme.php
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<?php /** * Theme, template, and stylesheet functions. * * @package WordPress * @subpackage Theme */ /** * Returns an array of WP_Theme objects based on the arguments. * * Despite advances over get_themes(), this function is quite expensive, and grows * linearly with additional themes. Stick to wp_get_theme() if possible. * * @since 3.4.0 * * @global array $wp_theme_directories * * @param array $args { * Optional. The search arguments. * * @type mixed $errors True to return themes with errors, false to return * themes without errors, null to return all themes. * Default false. * @type mixed $allowed (Multisite) True to return only allowed themes for a site. * False to return only disallowed themes for a site. * 'site' to return only site-allowed themes. * 'network' to return only network-allowed themes. * Null to return all themes. Default null. * @type int $blog_id (Multisite) The blog ID used to calculate which themes * are allowed. Default 0, synonymous for the current blog. * } * @return WP_Theme[] Array of WP_Theme objects. */ function wp_get_themes( $args = array() ) { global $wp_theme_directories; $defaults = array( 'errors' => false, 'allowed' => null, 'blog_id' => 0, ); $args = wp_parse_args( $args, $defaults ); $theme_directories = search_theme_directories(); if ( is_array( $wp_theme_directories ) && 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, true ) ) { $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 ] = new WP_Theme( $theme, $theme_root['theme_root'] ); $_themes[ $theme_root['theme_root'] . '/' . $theme ] = $themes[ $theme ]; } } 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 Optional. Directory name for the theme. Defaults to current theme. * @param string $theme_root Optional. Absolute path of the theme root to look in. * 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 = '', $theme_root = '' ) { 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, true ) ) { $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 ); } /** * Retrieves name of the current stylesheet. * * The theme name that is currently set as the front end theme. * * 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() { /** * 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' ) ); } /** * Retrieves stylesheet directory path for current theme. * * @since 1.5.0 * * @return string Path to current theme's stylesheet directory. */ function get_stylesheet_directory() { $stylesheet = get_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 ); } /** * Retrieves stylesheet directory URI for current theme. * * @since 1.5.0 * * @return string URI to current theme's stylesheet directory. */ function get_stylesheet_directory_uri() { $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 stylesheet URI for current theme. * * 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 URI to current theme's stylesheet. */ function get_stylesheet_uri() { $stylesheet_dir_uri = get_stylesheet_directory_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 WordPress date and time locale object. * * @return string URI to current theme's localized stylesheet. */ function get_locale_stylesheet_uri() { global $wp_locale; $stylesheet_dir_uri = get_stylesheet_directory_uri(); $dir = get_stylesheet_directory(); $locale = get_locale(); if ( file_exists( "$dir/$locale.css" ) ) { $stylesheet_uri = "$stylesheet_dir_uri/$locale.css"; } elseif ( ! empty( $wp_locale->text_direction ) && file_exists( "$dir/{$wp_locale->text_direction}.css" ) ) { $stylesheet_uri = "$stylesheet_dir_uri/{$wp_locale->text_direction}.css"; } else { $stylesheet_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 ); } /** * Retrieves name of the current theme. * * @since 1.5.0 * * @return string Template name. */ function get_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' ) ); } /** * Retrieves template directory path for current theme. * * @since 1.5.0 * * @return string Path to current theme's template directory. */ function get_template_directory() { $template = get_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 path 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 ); } /** * Retrieves template directory URI for current theme. * * @since 1.5.0 * * @return string URI to current theme's template directory. */ function get_template_directory_uri() { $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 ); } /** * Retrieves 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; if ( ! is_array( $wp_theme_directories ) || count( $wp_theme_directories ) <= 1 ) { return '/themes'; } $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; } /** * Registers 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 True if successfully registered a directory that contains themes, * false if the directory does not exist. */ 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 ( ! is_array( $wp_theme_directories ) ) { $wp_theme_directories = array(); } $untrailed = untrailingslashit( $directory ); if ( ! empty( $untrailed ) && ! in_array( $untrailed, $wp_theme_directories, true ) ) { $wp_theme_directories[] = $untrailed; } return true; } /** * Searches all registered theme directories for complete and valid themes. * * @since 2.9.0 * * @global array $wp_theme_directories * * @param bool $force Optional. Whether to force a new directory scan. Default false. * @return array|false Valid themes found on success, false on failure. */ function search_theme_directories( $force = false ) { global $wp_theme_directories; static $found_themes = null; if ( empty( $wp_theme_directories ) ) { return false; } if ( ! $force && isset( $found_themes ) ) { return $found_themes; } $found_themes = array(); $wp_theme_directories = (array) $wp_theme_directories; $relative_theme_roots = array(); /* * 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 $context The class or function name calling the filter. */ $cache_expiration = apply_filters( 'wp_cache_themes_persistently', false, 'search_theme_directories' ); if ( $cache_expiration ) { $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 = 30 * MINUTE_IN_SECONDS; } } else { $cache_expiration = 30 * MINUTE_IN_SECONDS; } /* 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] || 'CVS' === $dir ) { continue; } 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; } foreach ( $sub_dirs as $sub_dir ) { if ( ! is_dir( $theme_root . '/' . $dir . '/' . $sub_dir ) || '.' === $dir[0] || 'CVS' === $dir ) { 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; } // 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, ); } } } } asort( $found_themes ); $theme_roots = array(); $relative_theme_roots = array_flip( $relative_theme_roots ); foreach ( $found_themes as $theme_dir => $theme_data ) { $theme_roots[ $theme_dir ] = $relative_theme_roots[ $theme_data['theme_root'] ]; // Convert absolute to relative. } if ( get_site_transient( 'theme_roots' ) != $theme_roots ) { set_site_transient( 'theme_roots', $theme_roots, $cache_expiration ); } return $found_themes; } /** * Retrieves path to 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. * @return string Themes directory path. */ function get_theme_root( $stylesheet_or_template = '' ) { global $wp_theme_directories; $theme_root = ''; if ( $stylesheet_or_template ) { $theme_root = get_raw_theme_root( $stylesheet_or_template ); if ( $theme_root ) { // 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, true ) ) { $theme_root = WP_CONTENT_DIR . $theme_root; } } } if ( ! $theme_root ) { $theme_root = WP_CONTENT_DIR . '/themes'; } /** * 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 ); } /** * Retrieves 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. Default empty. * @return string Themes directory URI. */ function get_theme_root_uri( $stylesheet_or_template = '', $theme_root = '' ) { 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, true ) ) { // 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 { $theme_root_uri = $theme_root; } } else { $theme_root_uri = content_url( $theme_root ); } } else { $theme_root_uri = content_url( 'themes' ); } /** * 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 The stylesheet or template name of the theme. */ return apply_filters( 'theme_root_uri', $theme_root_uri, get_option( 'siteurl' ), $stylesheet_or_template ); } /** * Gets 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; if ( ! is_array( $wp_theme_directories ) || count( $wp_theme_directories ) <= 1 ) { return '/themes'; } $theme_root = false; // 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' ); } } if ( empty( $theme_root ) ) { $theme_roots = get_theme_roots(); if ( ! empty( $theme_roots[ $stylesheet_or_template ] ) ) { $theme_root = $theme_roots[ $stylesheet_or_template ]; } } return $theme_root; } /** * Displays localized stylesheet link element. * * @since 2.1.0 */ function locale_stylesheet() { $stylesheet = get_locale_stylesheet_uri(); if ( empty( $stylesheet ) ) { return; } $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"'; printf( '<link rel="stylesheet" href="%s"%s media="screen" />', $stylesheet, $type_attr ); } /** * 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; $requirements = validate_theme_requirements( $stylesheet ); if ( is_wp_error( $requirements ) ) { wp_die( $requirements ); } $_sidebars_widgets = null; if ( 'wp_ajax_customize_save' === current_action() ) { $old_sidebars_widgets_data_setting = $wp_customize->get_setting( 'old_sidebars_widgets_data' ); if ( $old_sidebars_widgets_data_setting ) { $_sidebars_widgets = $wp_customize->post_value( $old_sidebars_widgets_data_setting ); } } elseif ( is_array( $sidebars_widgets ) ) { $_sidebars_widgets = $sidebars_widgets; } if ( is_array( $_sidebars_widgets ) ) { set_theme_mod( 'sidebars_widgets', array( 'time' => time(), 'data' => $_sidebars_widgets, ) ); } $nav_menu_locations = get_theme_mod( 'nav_menu_locations' ); update_option( 'theme_switch_menu_locations', $nav_menu_locations ); if ( func_num_args() > 1 ) { $stylesheet = func_get_arg( 1 ); } $old_theme = wp_get_theme(); $new_theme = wp_get_theme( $stylesheet ); $template = $new_theme->get_template(); if ( wp_is_recovery_mode() ) { $paused_themes = wp_paused_themes(); $paused_themes->delete( $old_theme->get_stylesheet() ); $paused_themes->delete( $old_theme->get_template() ); } update_option( 'template', $template ); update_option( 'stylesheet', $stylesheet ); 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' ); } $new_name = $new_theme->get( 'Name' ); update_option( 'current_theme', $new_name ); // 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' ); } } 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 ); } /** * Checks that the current theme has 'index.php' and 'style.css' files. * * 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; } 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; } $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; } switch_theme( $default->get_stylesheet() ); return false; } /** * Validates the theme requirements for WordPress version and PHP version. * * Uses the information from `Requires at least` and `Requires PHP` headers * defined in the theme's `style.css` file. * * If the headers are not present in the theme's stylesheet file, * `readme.txt` is also checked as a fallback. * * @since 5.5.0 * * @param string $stylesheet Directory name for the theme. * @return true|WP_Error True if requirements are met, WP_Error on failure. */ function validate_theme_requirements( $stylesheet ) { $theme = wp_get_theme( $stylesheet ); $requirements = array( 'requires' => ! empty( $theme->get( 'RequiresWP' ) ) ? $theme->get( 'RequiresWP' ) : '', 'requires_php' => ! empty( $theme->get( 'RequiresPHP' ) ) ? $theme->get( 'RequiresPHP' ) : '', ); $readme_file = $theme->theme_root . '/' . $stylesheet . '/readme.txt'; if ( file_exists( $readme_file ) ) { $readme_headers = get_file_data( $readme_file, array( 'requires' => 'Requires at least', 'requires_php' => 'Requires PHP', ), 'theme' ); $requirements = array_merge( $readme_headers, $requirements ); } $compatible_wp = is_wp_version_compatible( $requirements['requires'] ); $compatible_php = is_php_version_compatible( $requirements['requires_php'] ); if ( ! $compatible_wp && ! $compatible_php ) { return new WP_Error( 'theme_wp_php_incompatible', sprintf( /* translators: %s: Theme name. */ _x( '<strong>Error:</strong> Current WordPress and PHP versions do not meet minimum requirements for %s.', 'theme' ), $theme->display( 'Name' ) ) ); } elseif ( ! $compatible_php ) { return new WP_Error( 'theme_php_incompatible', sprintf( /* translators: %s: Theme name. */ _x( '<strong>Error:</strong> Current PHP version does not meet minimum requirements for %s.', 'theme' ), $theme->display( 'Name' ) ) ); } elseif ( ! $compatible_wp ) { return new WP_Error( 'theme_wp_incompatible', sprintf( /* translators: %s: Theme name. */ _x( '<strong>Error:</strong> Current WordPress version does not meet minimum requirements for %s.', 'theme' ), $theme->display( 'Name' ) ) ); } return true; } /** * Retrieves 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; } /** * Retrieves theme modification value for the current theme. * * If the modification name does not exist, then the $default will be passed * through {@link https://www.php.net/sprintf sprintf()} PHP function with * the template directory URI as the first string and the stylesheet directory URI * as the second string. * * @since 2.1.0 * * @param string $name Theme modification name. * @param string|false $default Optional. Theme modification default value. Default false. * @return mixed Theme modification value. */ 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 ) ) { // Only run the replacement if an sprintf() string format pattern was found. if ( preg_match( '#(?<!%)%(?:\d+\$?)?s#', $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 ); } /** * Updates 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[ $name ] : false; /** * Filters the theme modification, or 'theme_mod', value on save. * * The dynamic portion of the hook name, `$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 modification. * @param string $old_value The current value of the theme modification. */ $mods[ $name ] = apply_filters( "pre_set_theme_mod_{$name}", $value, $old_value ); $theme = get_option( 'stylesheet' ); update_option( "theme_mods_$theme", $mods ); } /** * Removes 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(); if ( ! isset( $mods[ $name ] ) ) { return; } unset( $mods[ $name ] ); if ( empty( $mods ) ) { remove_theme_mods(); return; } $theme = get_option( 'stylesheet' ); update_option( "theme_mods_$theme", $mods ); } /** * Removes theme modifications option for current theme. * * @since 2.1.0 */ function remove_theme_mods() { delete_option( 'theme_mods_' . get_option( 'stylesheet' ) ); // Old style. $theme_name = get_option( 'current_theme' ); if ( false === $theme_name ) { $theme_name = wp_get_theme()->get( 'Name' ); } delete_option( 'mods_' . $theme_name ); } /** * Retrieves the custom header text color in 3- or 6-digit hexadecimal form. * * @since 2.1.0 * * @return string Header text color in 3- or 6-digit hexadecimal form (minus the hash symbol). */ function get_header_textcolor() { return get_theme_mod( 'header_textcolor', get_theme_support( 'custom-header', 'default-text-color' ) ); } /** * Displays the custom header text color in 3- or 6-digit hexadecimal form (minus the hash symbol). * * @since 2.1.0 */ function header_textcolor() { echo get_header_textcolor(); } /** * 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; } $text_color = get_theme_mod( 'header_textcolor', get_theme_support( 'custom-header', 'default-text-color' ) ); return 'blank' !== $text_color; } /** * Checks 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(); } /** * Retrieves 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 ( 'remove-header' === $url ) { return false; } if ( is_random_header_image() ) { $url = get_random_header_image(); } return esc_url_raw( set_url_scheme( $url ) ); } /** * Creates 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(); if ( ! $header->url ) { return ''; } $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' ), ) ); // 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 ); 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 ); if ( $srcset && $sizes ) { $attr['srcset'] = $srcset; $attr['sizes'] = $sizes; } } } $attr = array_map( 'esc_attr', $attr ); $html = '<img'; foreach ( $attr as $name => $value ) { $html .= ' ' . $name . '="' . $value . '"'; } $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 ); } /** * Displays 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 ); } /** * Gets random header image data from registered images in theme. * * @since 3.4.0 * * @access private * * @global array $_wp_default_headers * * @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; } } } if ( empty( $headers ) ) { return new stdClass; } $_wp_random_header = (object) $headers[ array_rand( $headers ) ]; $_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 $_wp_random_header; } /** * Gets 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; } /** * Checks 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. Possible values include 'any', * 'default', 'uploaded'. Default 'any'. * @return bool */ function is_random_header_image( $type = 'any' ) { $header_image_mod = get_theme_mod( 'header_image', get_theme_support( 'custom-header', 'default-image' ) ); 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; } } return false; } /** * Displays header image URL. * * @since 2.1.0 */ function header_image() { $image = get_header_image(); if ( $image ) { echo esc_url( $image ); } } /** * Gets 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 ); $header_images[ $header_index ]['attachment_parent'] = isset( $header_data['attachment_parent'] ) ? $header_data['attachment_parent'] : ''; 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']; } } return $header_images; } /** * Gets the header image data. * * @since 3.4.0 * * @global array $_wp_default_headers * * @return object */ function get_custom_header() { global $_wp_default_headers; 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'] = vsprintf( get_theme_support( 'custom-header', 'default-image' ), $directory_args ); $data['thumbnail_url'] = $data['url']; 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; } } } } } $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 ); } /** * Registers 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; $_wp_default_headers = array_merge( (array) $_wp_default_headers, (array) $headers ); } /** * Unregisters 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; } } /** * Checks 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(); } /** * Retrieves header video URL for custom header. * * Uses a local video if present, or falls back to an external video. * * @since 4.7.0 * * @return string|false Header video URL or false if there is no video. */ function get_header_video_url() { $id = absint( get_theme_mod( 'header_video' ) ); if ( $id ) { // Get the file URL from the attachment ID. $url = wp_get_attachment_url( $id ); } else { $url = get_theme_mod( 'external_header_video' ); } /** * Filters the header video URL. * * @since 4.7.3 * * @param string $url Header video URL, if available. */ $url = apply_filters( 'get_header_video_url', $url ); if ( ! $id && ! $url ) { return false; } return esc_url_raw( set_url_scheme( $url ) ); } /** * Displays header video URL. * * @since 4.7.0 */ function the_header_video_url() { $video = get_header_video_url(); if ( $video ) { echo esc_url( $video ); } } /** * Retrieves 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']; } /** * Filters header video settings. * * @since 4.7.0 * * @param array $settings An array of header video settings. */ return apply_filters( 'header_video_settings', $settings ); } /** * Checks 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 ); } /** * Filters 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 ); } /** * Retrieves 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( '<div id="wp-custom-header" class="wp-custom-header">%s</div>', get_header_image_tag() ); } /** * Prints the markup for a custom header. * * A container div will always be printed in the Customizer preview. * * @since 4.7.0 */ function the_custom_header_markup() { $custom_header = get_custom_header_markup(); if ( empty( $custom_header ) ) { return; } echo $custom_header; if ( is_header_video_active() && ( has_header_video() || is_customize_preview() ) ) { wp_enqueue_script( 'wp-custom-header' ); wp_localize_script( 'wp-custom-header', '_wpCustomHeaderSettings', get_header_video_settings() ); } } /** * Retrieves background image for custom background. * * @since 3.0.0 * * @return string */ function get_background_image() { return get_theme_mod( 'background_image', get_theme_support( 'custom-background', 'default-image' ) ); } /** * Displays background image path. * * @since 3.0.0 */ function background_image() { echo get_background_image(); } /** * Retrieves value for custom background color. * * @since 3.0.0 * * @return string */ function get_background_color() { return get_theme_mod( 'background_color', get_theme_support( 'custom-background', 'default-color' ) ); } /** * Displays background color value. * * @since 3.0.0 */ function background_color() { echo get_background_color(); } /** * Default custom background callback. * * @since 3.0.0 */ function _custom_background_cb() { // $background is the saved custom image, or the default image. $background = set_url_scheme( get_background_image() ); // $color is the saved custom color. // A default has to be specified in style.css. It will not be printed here. $color = get_background_color(); if ( get_theme_support( 'custom-background', 'default-color' ) === $color ) { $color = false; } $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"'; if ( ! $background && ! $color ) { if ( is_customize_preview() ) { printf( '<style%s id="custom-background-css"></style>', $type_attr ); } return; } $style = $color ? "background-color: #$color;" : ''; if ( $background ) { $image = ' background-image: url("' . esc_url_raw( $background ) . '");'; // Background Position. $position_x = get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) ); $position_y = get_theme_mod( 'background_position_y', get_theme_support( 'custom-background', 'default-position-y' ) ); if ( ! in_array( $position_x, array( 'left', 'center', 'right' ), true ) ) { $position_x = 'left'; } if ( ! in_array( $position_y, array( 'top', 'center', 'bottom' ), true ) ) { $position_y = 'top'; } $position = " background-position: $position_x $position_y;"; // Background Size. $size = get_theme_mod( 'background_size', get_theme_support( 'custom-background', 'default-size' ) ); if ( ! in_array( $size, array( 'auto', 'contain', 'cover' ), true ) ) { $size = 'auto'; } $size = " background-size: $size;"; // Background Repeat. $repeat = get_theme_mod( 'background_repeat', get_theme_support( 'custom-background', 'default-repeat' ) ); if ( ! in_array( $repeat, array( 'repeat-x', 'repeat-y', 'repeat', 'no-repeat' ), true ) ) { $repeat = 'repeat'; } $repeat = " background-repeat: $repeat;"; // Background Scroll. $attachment = get_theme_mod( 'background_attachment', get_theme_support( 'custom-background', 'default-attachment' ) ); if ( 'fixed' !== $attachment ) { $attachment = 'scroll'; } $attachment = " background-attachment: $attachment;"; $style .= $image . $position . $size . $repeat . $attachment; } ?> <style<?php echo $type_attr; ?> id="custom-background-css"> body.custom-background { <?php echo trim( $style ); ?> } </style> <?php } /** * Renders the Custom CSS style element. * * @since 4.7.0 */ function wp_custom_css_cb() { $styles = wp_get_custom_css(); if ( $styles || is_customize_preview() ) : $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"'; ?> <style<?php echo $type_attr; ?> id="wp-custom-css"> <?php echo strip_tags( $styles ); // Note that esc_html() cannot be used because `div > span` is not interpreted properly. ?> </style> <?php endif; } /** * Fetches the `custom_css` post for a given theme. * * @since 4.7.0 * * @param string $stylesheet Optional. A theme object stylesheet name. Defaults to the current theme. * @return WP_Post|null The custom_css post or null if none exists. */ function wp_get_custom_css_post( $stylesheet = '' ) { if ( empty( $stylesheet ) ) { $stylesheet = get_stylesheet(); } $custom_css_query_vars = array( 'post_type' => 'custom_css', 'post_status' => get_post_stati(), 'name' => sanitize_title( $stylesheet ), 'posts_per_page' => 1, 'no_found_rows' => true, 'cache_results' => true, 'update_post_meta_cache' => false, 'update_post_term_cache' => false, 'lazy_load_term_meta' => false, ); $post = null; if ( get_stylesheet() === $stylesheet ) { $post_id = get_theme_mod( 'custom_css_post_id' ); if ( $post_id > 0 && get_post( $post_id ) ) { $post = get_post( $post_id ); } // `-1` indicates no post exists; no query necessary. if ( ! $post && -1 !== $post_id ) { $query = new WP_Query( $custom_css_query_vars ); $post = $query->post; /* * Cache the lookup. See wp_update_custom_css_post(). * @todo This should get cleared if a custom_css post is added/removed. */ set_theme_mod( 'custom_css_post_id', $post ? $post->ID : -1 ); } } else { $query = new WP_Query( $custom_css_query_vars ); $post = $query->post; } return $post; } /** * Fetches the saved Custom CSS content for rendering. * * @since 4.7.0 * * @param string $stylesheet Optional. A theme object stylesheet name. Defaults to the current theme. * @return string The Custom CSS Post content. */ function wp_get_custom_css( $stylesheet = '' ) { $css = ''; if ( empty( $stylesheet ) ) { $stylesheet = get_stylesheet(); } $post = wp_get_custom_css_post( $stylesheet ); if ( $post ) { $css = $post->post_content; } /** * Filters the Custom CSS Output into the <head>. * * @since 4.7.0 * * @param string $css CSS pulled in from the Custom CSS CPT. * @param string $stylesheet The theme stylesheet name. */ $css = apply_filters( 'wp_get_custom_css', $css, $stylesheet ); return $css; } /** * Updates the `custom_css` post for a given theme. * * Inserts a `custom_css` post when one doesn't yet exist. * * @since 4.7.0 * * @param string $css CSS, stored in `post_content`. * @param array $args { * Args. * * @type string $preprocessed Pre-processed CSS, stored in `post_content_filtered`. Normally empty string. Optional. * @type string $stylesheet Stylesheet (child theme) to update. Optional, defaults to current theme/stylesheet. * } * @return WP_Post|WP_Error Post on success, error on failure. */ function wp_update_custom_css_post( $css, $args = array() ) { $args = wp_parse_args( $args, array( 'preprocessed' => '', 'stylesheet' => get_stylesheet(), ) ); $data = array( 'css' => $css, 'preprocessed' => $args['preprocessed'], ); /** * Filters the `css` (`post_content`) and `preprocessed` (`post_content_filtered`) args for a `custom_css` post being updated. * * This filter can be used by plugin that offer CSS pre-processors, to store the original * pre-processed CSS in `post_content_filtered` and then store processed CSS in `post_content`. * When used in this way, the `post_content_filtered` should be supplied as the setting value * instead of `post_content` via a the `customize_value_custom_css` filter, for example: * * <code> * 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 ); * </code> * * @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 ); } /** * Adds 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' ) { global $editor_styles; add_theme_support( 'editor-style' ); $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; } /** * Retrieves any registered editor stylesheet URLs. * * @since 4.0.0 * * @global array $editor_styles Registered editor stylesheets * * @return string[] 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 URLs of stylesheets applied to the editor. * * @since 4.3.0 * * @param string[] $stylesheets Array of URLs of stylesheets to be applied to the editor. */ return apply_filters( 'editor_stylesheets', $stylesheets ); } /** * Expands 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( '<strong>' . _x( 'Address', 'Theme starter content' ) . "</strong>\n", _x( '123 Main Street', 'Theme starter content' ) . "\n" . _x( 'New York, NY 10001', 'Theme starter content' ) . "\n\n", '<strong>' . _x( 'Hours', 'Theme starter content' ) . "</strong>\n", _x( 'Monday–Friday: 9:00AM–5:00PM', 'Theme starter content' ) . "\n" . _x( 'Saturday & Sunday: 11:00AM–3:00PM', 'Theme starter content' ), ) ), 'filter' => true, 'visual' => true, ), ), 'text_about' => array( 'text', array( 'title' => _x( 'About This Site', 'Theme starter content' ), 'text' => _x( 'This may be a good place to introduce yourself and your site or include some credits.', 'Theme starter content' ), 'filter' => true, 'visual' => true, ), ), 'archives' => array( 'archives', array( 'title' => _x( 'Archives', 'Theme starter content' ), ), ), 'calendar' => array( 'calendar', array( 'title' => _x( 'Calendar', 'Theme starter content' ), ), ), 'categories' => array( 'categories', array( 'title' => _x( 'Categories', 'Theme starter content' ), ), ), 'meta' => array( 'meta', array( 'title' => _x( 'Meta', 'Theme starter content' ), ), ), 'recent-comments' => array( 'recent-comments', array( 'title' => _x( 'Recent Comments', 'Theme starter content' ), ), ), 'recent-posts' => array( 'recent-posts', array( 'title' => _x( 'Recent Posts', 'Theme starter content' ), ), ), 'search' => array( 'search', array( 'title' => _x( 'Search', 'Theme starter content' ), ), ), ), 'nav_menus' => array( 'link_home' => array( 'type' => 'custom', 'title' => _x( 'Home', 'Theme starter content' ), 'url' => home_url( '/' ), ), 'page_home' => array( // Deprecated in favor of 'link_home'. 'type' => 'post_type', 'object' => 'page', 'object_id' => '{{home}}', ), 'page_about' => array( 'type' => 'post_type', 'object' => 'page', 'object_id' => '{{about}}', ), 'page_blog' => array( 'type' => 'post_type', 'object' => 'page', 'object_id' => '{{blog}}', ), 'page_news' => array( 'type' => 'post_type', 'object' => 'page', 'object_id' => '{{news}}', ), 'page_contact' => array( 'type' => 'post_type', 'object' => 'page', 'object_id' => '{{contact}}', ), 'link_email' => array( 'title' => _x( 'Email', 'Theme starter content' ), 'url' => 'mailto:wordpress@example.com', ), 'link_facebook' => array( 'title' => _x( 'Facebook', 'Theme starter content' ), 'url' => 'https://www.facebook.com/wordpress', ), 'link_foursquare' => array( 'title' => _x( 'Foursquare', 'Theme starter content' ), 'url' => 'https://foursquare.com/', ), 'link_github' => array( 'title' => _x( 'GitHub', 'Theme starter content' ), 'url' => 'https://github.com/wordpress/', ), 'link_instagram' => array( 'title' => _x( 'Instagram', 'Theme starter content' ), 'url' => 'https://www.instagram.com/explore/tags/wordcamp/', ), 'link_linkedin' => array( 'title' => _x( 'LinkedIn', 'Theme starter content' ), 'url' => 'https://www.linkedin.com/company/1089783', ), 'link_pinterest' => array( 'title' => _x( 'Pinterest', 'Theme starter content' ), 'url' => 'https://www.pinterest.com/', ), 'link_twitter' => array( 'title' => _x( 'Twitter', 'Theme starter content' ), 'url' => 'https://twitter.com/wordpress', ), 'link_yelp' => array( 'title' => _x( 'Yelp', 'Theme starter content' ), 'url' => 'https://www.yelp.com', ), 'link_youtube' => array( 'title' => _x( 'YouTube', 'Theme starter content' ), 'url' => 'https://www.youtube.com/channel/UCdof4Ju7amm1chz1gi1T2ZA', ), ), 'posts' => array( 'home' => array( 'post_type' => 'page', 'post_title' => _x( 'Home', 'Theme starter content' ), 'post_content' => sprintf( "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->", _x( 'Welcome to your site! This is your homepage, which is what most visitors will see when they come to your site for the first time.', 'Theme starter content' ) ), ), 'about' => array( 'post_type' => 'page', 'post_title' => _x( 'About', 'Theme starter content' ), 'post_content' => sprintf( "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->", _x( 'You might be an artist who would like to introduce yourself and your work here or maybe you’re a business with a mission to describe.', 'Theme starter content' ) ), ), 'contact' => array( 'post_type' => 'page', 'post_title' => _x( 'Contact', 'Theme starter content' ), 'post_content' => sprintf( "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->", _x( 'This is a page with some basic contact information, such as an address and phone number. You might also try a plugin to add a contact form.', 'Theme starter content' ) ), ), 'blog' => array( 'post_type' => 'page', 'post_title' => _x( 'Blog', 'Theme starter content' ), ), 'news' => array( 'post_type' => 'page', 'post_title' => _x( 'News', 'Theme starter content' ), ), 'homepage-section' => array( 'post_type' => 'page', 'post_title' => _x( 'A homepage section', 'Theme starter content' ), 'post_content' => sprintf( "<!-- wp:paragraph -->\n<p>%s</p>\n<!-- /wp:paragraph -->", _x( 'This is an example of a homepage section. Homepage sections can be any page other than the homepage itself, including the page that shows your latest blog posts.', 'Theme starter content' ) ), ), ), ); $content = array(); foreach ( $config as $type => $args ) { switch ( $type ) { // Use options and theme_mods as-is. case 'options': case 'theme_mods': $content[ $type ] = $config[ $type ]; break; // Widgets are grouped into sidebars. case 'widgets': foreach ( $config[ $type ] as $sidebar_id => $widgets ) { foreach ( $widgets as $id => $widget ) { if ( is_array( $widget ) ) { // Item extends core content. if ( ! empty( $core_content[ $type ][ $id ] ) ) { $widget = array( $core_content[ $type ][ $id ][0], array_merge( $core_content[ $type ][ $id ][1], $widget ), ); } $content[ $type ][ $sidebar_id ][] = $widget; } elseif ( is_string( $widget ) && ! empty( $core_content[ $type ] ) && ! empty( $core_content[ $type ][ $widget ] ) ) { $content[ $type ][ $sidebar_id ][] = $core_content[ $type ][ $widget ]; } } } break; // And nav menu items are grouped into nav menus. case 'nav_menus': foreach ( $config[ $type ] as $nav_menu_location => $nav_menu ) { // Ensure nav menus get a name. if ( empty( $nav_menu['name'] ) ) { $nav_menu['name'] = $nav_menu_location; } $content[ $type ][ $nav_menu_location ]['name'] = $nav_menu['name']; foreach ( $nav_menu['items'] as $id => $nav_menu_item ) { if ( is_array( $nav_menu_item ) ) { // Item extends core content. if ( ! empty( $core_content[ $type ][ $id ] ) ) { $nav_menu_item = array_merge( $core_content[ $type ][ $id ], $nav_menu_item ); } $content[ $type ][ $nav_menu_location ]['items'][] = $nav_menu_item; } elseif ( is_string( $nav_menu_item ) && ! empty( $core_content[ $type ] ) && ! empty( $core_content[ $type ][ $nav_menu_item ] ) ) { $content[ $type ][ $nav_menu_location ]['items'][] = $core_content[ $type ][ $nav_menu_item ]; } } } break; // Attachments are posts but have special treatment. case 'attachments': foreach ( $config[ $type ] as $id => $item ) { if ( ! empty( $item['file'] ) ) { $content[ $type ][ $id ] = $item; } } break; // All that's left now are posts (besides attachments). // Not a default case for the sake of clarity and future work. case 'posts': foreach ( $config[ $type ] as $id => $item ) { if ( is_array( $item ) ) { // Item extends core content. if ( ! empty( $core_content[ $type ][ $id ] ) ) { $item = array_merge( $core_content[ $type ][ $id ], $item ); } // Enforce a subset of fields. $content[ $type ][ $id ] = wp_array_slice_assoc( $item, array( 'post_type', 'post_title', 'post_excerpt', 'post_name', 'post_content', 'menu_order', 'comment_status', 'thumbnail', 'template', ) ); } elseif ( is_string( $item ) && ! empty( $core_content[ $type ][ $item ] ) ) { $content[ $type ][ $item ] = $core_content[ $type ][ $item ]; } } break; } } /** * Filters the expanded array of starter content. * * @since 4.7.0 * * @param array $content Array of starter content. * @param array $config Array of theme-specific starter content configuration. */ return apply_filters( 'get_theme_starter_content', $content, $config ); } /** * Registers theme support for a given feature. * * Must be called in the theme's functions.php file to work. * If attached to a hook, it must be {@see 'after_setup_theme'}. * The {@see 'init'} hook may be too late for some features. * * Example usage: * * add_theme_support( 'title-tag' ); * add_theme_support( 'custom-logo', array( * 'height' => 480, * 'width' => 720, * ) ); * * @since 2.9.0 * @since 3.4.0 The `custom-header-uploads` feature was deprecated. * @since 3.6.0 The `html5` feature was added. * @since 3.9.0 The `html5` feature now also accepts 'gallery' and 'caption'. * @since 4.1.0 The `title-tag` feature was added. * @since 4.5.0 The `customize-selective-refresh-widgets` feature was added. * @since 4.7.0 The `starter-content` feature was added. * @since 5.0.0 The `responsive-embeds`, `align-wide`, `dark-editor-style`, `disable-custom-colors`, * `disable-custom-font-sizes`, `editor-color-palette`, `editor-font-sizes`, * `editor-styles`, and `wp-block-styles` features were added. * @since 5.3.0 The `html5` feature now also accepts 'script' and 'style'. * @since 5.3.0 Formalized the existing and already documented `...$args` parameter * by adding it to the function signature. * @since 5.5.0 The `core-block-patterns` feature was added and is enabled by default. * @since 5.5.0 The `custom-logo` feature now also accepts 'unlink-homepage-logo'. * * @global array $_wp_theme_features * * @param string $feature The feature being added. Likely core values include 'post-formats', 'post-thumbnails', * 'custom-header', 'custom-background', 'custom-logo', 'menus', 'automatic-feed-links', * 'html5', 'title-tag', 'customize-selective-refresh-widgets', 'starter-content', * 'responsive-embeds', 'align-wide', 'dark-editor-style', 'disable-custom-colors', * 'disable-custom-font-sizes', 'editor-color-palette', 'editor-font-sizes', * 'editor-styles', 'wp-block-styles', and 'core-block-patterns'. * @param mixed ...$args Optional extra arguments to pass along with certain features. * @return void|bool False on failure, void otherwise. */ function add_theme_support( $feature, ...$args ) { global $_wp_theme_features; if ( ! $args ) { $args = true; } switch ( $feature ) { case 'post-thumbnails': // All post types are already supported. if ( true === get_theme_support( 'post-thumbnails' ) ) { return; } /* * Merge post types with any that already declared their support * for post thumbnails. */ if ( isset( $args[0] ) && is_array( $args[0] ) && isset( $_wp_theme_features['post-thumbnails'] ) ) { $args[0] = array_unique( array_merge( $_wp_theme_features['post-thumbnails'][0], $args[0] ) ); } break; case 'post-formats': if ( isset( $args[0] ) && is_array( $args[0] ) ) { $post_formats = get_post_format_slugs(); unset( $post_formats['standard'] ); $args[0] = array_intersect( $args[0], array_keys( $post_formats ) ); } break; case 'html5': // You can't just pass 'html5', you need to pass an array of types. if ( empty( $args[0] ) ) { // Build an array of types for back-compat. $args = array( 0 => array( 'comment-list', 'comment-form', 'search-form' ) ); } elseif ( ! isset( $args[0] ) || ! is_array( $args[0] ) ) { _doing_it_wrong( "add_theme_support( 'html5' )", __( 'You need to pass an array of types.' ), '3.6.1' ); return false; } // Calling 'html5' again merges, rather than overwrites. if ( isset( $_wp_theme_features['html5'] ) ) { $args[0] = array_merge( $_wp_theme_features['html5'][0], $args[0] ); } break; case 'custom-logo': if ( true === $args ) { $args = array( 0 => array() ); } $defaults = array( 'width' => null, 'height' => null, 'flex-width' => false, 'flex-height' => false, 'header-text' => '', 'unlink-homepage-logo' => false, ); $args[0] = wp_parse_args( array_intersect_key( $args[0], $defaults ), $defaults ); // Allow full flexibility if no size is specified. if ( is_null( $args[0]['width'] ) && is_null( $args[0]['height'] ) ) { $args[0]['flex-width'] = true; $args[0]['flex-height'] = true; } break; case 'custom-header-uploads': return add_theme_support( 'custom-header', array( 'uploads' => true ) ); case 'custom-header': if ( true === $args ) { $args = array( 0 => array() ); } $defaults = array( 'default-image' => '', 'random-default' => false, 'width' => 0, 'height' => 0, 'flex-height' => false, 'flex-width' => false, 'default-text-color' => '', 'header-text' => true, 'uploads' => true, 'wp-head-callback' => '', 'admin-head-callback' => '', 'admin-preview-callback' => '', 'video' => false, 'video-active-callback' => 'is_front_page', ); $jit = isset( $args[0]['__jit'] ); unset( $args[0]['__jit'] ); // Merge in data from previous add_theme_support() calls. // The first value registered wins. (A child theme is set up first.) if ( isset( $_wp_theme_features['custom-header'] ) ) { $args[0] = wp_parse_args( $_wp_theme_features['custom-header'][0], $args[0] ); } // Load in the defaults at the end, as we need to insure first one wins. // This will cause all constants to be defined, as each arg will then be set to the default. if ( $jit ) { $args[0] = wp_parse_args( $args[0], $defaults ); } /* * If a constant was defined, use that value. Otherwise, define the constant to ensure * the constant is always accurate (and is not defined later, overriding our value). * As stated above, the first value wins. * Once we get to wp_loaded (just-in-time), define any constants we haven't already. * Constants are lame. Don't reference them. This is just for backward compatibility. */ if ( defined( 'NO_HEADER_TEXT' ) ) { $args[0]['header-text'] = ! NO_HEADER_TEXT; } elseif ( isset( $args[0]['header-text'] ) ) { define( 'NO_HEADER_TEXT', empty( $args[0]['header-text'] ) ); } if ( defined( 'HEADER_IMAGE_WIDTH' ) ) { $args[0]['width'] = (int) HEADER_IMAGE_WIDTH; } elseif ( isset( $args[0]['width'] ) ) { define( 'HEADER_IMAGE_WIDTH', (int) $args[0]['width'] ); } if ( defined( 'HEADER_IMAGE_HEIGHT' ) ) { $args[0]['height'] = (int) HEADER_IMAGE_HEIGHT; } elseif ( isset( $args[0]['height'] ) ) { define( 'HEADER_IMAGE_HEIGHT', (int) $args[0]['height'] ); } if ( defined( 'HEADER_TEXTCOLOR' ) ) { $args[0]['default-text-color'] = HEADER_TEXTCOLOR; } elseif ( isset( $args[0]['default-text-color'] ) ) { define( 'HEADER_TEXTCOLOR', $args[0]['default-text-color'] ); } if ( defined( 'HEADER_IMAGE' ) ) { $args[0]['default-image'] = HEADER_IMAGE; } elseif ( isset( $args[0]['default-image'] ) ) { define( 'HEADER_IMAGE', $args[0]['default-image'] ); } if ( $jit && ! empty( $args[0]['default-image'] ) ) { $args[0]['random-default'] = false; } // If headers are supported, and we still don't have a defined width or height, // we have implicit flex sizes. if ( $jit ) { if ( empty( $args[0]['width'] ) && empty( $args[0]['flex-width'] ) ) { $args[0]['flex-width'] = true; } if ( empty( $args[0]['height'] ) && empty( $args[0]['flex-height'] ) ) { $args[0]['flex-height'] = true; } } break; case 'custom-background': if ( true === $args ) { $args = array( 0 => array() ); } $defaults = array( 'default-image' => '', 'default-preset' => 'default', 'default-position-x' => 'left', 'default-position-y' => 'top', 'default-size' => 'auto', 'default-repeat' => 'repeat', 'default-attachment' => 'scroll', 'default-color' => '', 'wp-head-callback' => '_custom_background_cb', 'admin-head-callback' => '', 'admin-preview-callback' => '', ); $jit = isset( $args[0]['__jit'] ); unset( $args[0]['__jit'] ); // Merge in data from previous add_theme_support() calls. The first value registered wins. if ( isset( $_wp_theme_features['custom-background'] ) ) { $args[0] = wp_parse_args( $_wp_theme_features['custom-background'][0], $args[0] ); } if ( $jit ) { $args[0] = wp_parse_args( $args[0], $defaults ); } if ( defined( 'BACKGROUND_COLOR' ) ) { $args[0]['default-color'] = BACKGROUND_COLOR; } elseif ( isset( $args[0]['default-color'] ) || $jit ) { define( 'BACKGROUND_COLOR', $args[0]['default-color'] ); } if ( defined( 'BACKGROUND_IMAGE' ) ) { $args[0]['default-image'] = BACKGROUND_IMAGE; } elseif ( isset( $args[0]['default-image'] ) || $jit ) { define( 'BACKGROUND_IMAGE', $args[0]['default-image'] ); } break; // Ensure that 'title-tag' is accessible in the admin. case 'title-tag': // Can be called in functions.php but must happen before wp_loaded, i.e. not in header.php. if ( did_action( 'wp_loaded' ) ) { _doing_it_wrong( "add_theme_support( 'title-tag' )", sprintf( /* translators: 1: title-tag, 2: wp_loaded */ __( 'Theme support for %1$s should be registered before the %2$s hook.' ), '<code>title-tag</code>', '<code>wp_loaded</code>' ), '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/includes/class-custom-image-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/includes/class-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 ); $type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"'; ?> <!-- Custom Logo: hide header text --> <style id="custom-logo-css"<?php echo $type_attr; ?>> <?php echo $classes; ?> { position: absolute; clip: rect(1px, 1px, 1px, 1px); } </style> <?php } } /** * Gets the theme support arguments passed when registering that support. * * Example usage: * * get_theme_support( 'custom-logo' ); * get_theme_support( 'custom-header', 'width' ); * * @since 3.1.0 * @since 5.3.0 Formalized the existing and already documented `...$args` parameter * by adding it to the function signature. * * @global array $_wp_theme_features * * @param string $feature The feature to check. See add_theme_support() for the list * of possible values. * @param mixed ...$args Optional extra arguments to be checked against certain features. * @return mixed The array of extra arguments or the value for the registered feature. */ function get_theme_support( $feature, ...$args ) { global $_wp_theme_features; if ( ! isset( $_wp_theme_features[ $feature ] ) ) { return false; } if ( ! $args ) { return $_wp_theme_features[ $feature ]; } switch ( $feature ) { case 'custom-logo': case 'custom-header': case 'custom-background': if ( isset( $_wp_theme_features[ $feature ][0][ $args[0] ] ) ) { return $_wp_theme_features[ $feature ][0][ $args[0] ]; } return false; default: return $_wp_theme_features[ $feature ]; } } /** * Allows a theme to de-register its support of a certain feature * * Should be called in the theme's functions.php file. Generally would * be used for child themes to override support from the parent theme. * * @since 3.0.0 * * @see add_theme_support() * * @param string $feature The feature being removed. See add_theme_support() for the list * of possible values. * @return bool|void Whether feature was removed. */ function remove_theme_support( $feature ) { // Do not remove internal registrations that are not used directly by themes. if ( in_array( $feature, array( 'editor-style', 'widgets', 'menus' ), true ) ) { return false; } return _remove_theme_support( $feature ); } /** * Do not use. Removes theme support internally without knowledge of those not used * by themes directly. * * @access private * @since 3.1.0 * @global array $_wp_theme_features * @global Custom_Image_Header $custom_image_header * @global Custom_Background $custom_background * * @param string $feature The feature being removed. See add_theme_support() for the list * of possible values. * @return bool True if support was removed, false if the feature was not registered. */ function _remove_theme_support( $feature ) { global $_wp_theme_features; switch ( $feature ) { case 'custom-header-uploads': if ( ! isset( $_wp_theme_features['custom-header'] ) ) { return false; } add_theme_support( 'custom-header', array( 'uploads' => 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' ); if ( isset( $support[0]['wp-head-callback'] ) ) { 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[ $feature ] ); return true; } /** * Checks a theme's support for a given feature. * * Example usage: * * current_theme_supports( 'custom-logo' ); * current_theme_supports( 'html5', 'comment-form' ); * * @since 2.9.0 * @since 5.3.0 Formalized the existing and already documented `...$args` parameter * by adding it to the function signature. * * @global array $_wp_theme_features * * @param string $feature The feature being checked. See add_theme_support() for the list * of possible values. * @param mixed ...$args Optional extra arguments to be checked against certain features. * @return bool True if the current theme supports the feature, false otherwise. */ function current_theme_supports( $feature, ...$args ) { 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 ( ! $args ) { return true; } 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], true ); 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], true ); 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. See add_theme_support() for the list of possible values. * * @since 3.4.0 * * @param bool $supports 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 ] ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores } /** * 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. See add_theme_support() for the list * of possible values. * @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; } /** * Registers a theme feature for use in add_theme_support(). * * This does not indicate that the current theme supports the feature, it only describes * the feature's supported options. * * @since 5.5.0 * * @see add_theme_support() * * @global array $_wp_registered_theme_features * * @param string $feature The name uniquely identifying the feature. See add_theme_support() * for the list of possible values. * @param array $args { * Data used to describe the theme. * * @type string $type The type of data associated with this feature. * Valid values are 'string', 'boolean', 'integer', * 'number', 'array', and 'object'. Defaults to 'boolean'. * @type boolean $variadic Does this feature utilize the variadic support * of add_theme_support(), or are all arguments specified * as the second parameter. Must be used with the "array" type. * @type string $description A short description of the feature. Included in * the Themes REST API schema. Intended for developers. * @type bool|array $show_in_rest { * Whether this feature should be included in the Themes REST API endpoint. * Defaults to not being included. When registering an 'array' or 'object' type, * this argument must be an array with the 'schema' key. * * @type array $schema Specifies the JSON Schema definition describing * the feature. If any objects in the schema do not include * the 'additionalProperties' keyword, it is set to false. * @type string $name An alternate name to be used as the property name * in the REST API. * @type callable $prepare_callback A function used to format the theme support in the REST API. * Receives the raw theme support value. * } * } * @return true|WP_Error True if the theme feature was successfully registered, a WP_Error object if not. */ function register_theme_feature( $feature, $args = array() ) { global $_wp_registered_theme_features; if ( ! is_array( $_wp_registered_theme_features ) ) { $_wp_registered_theme_features = array(); } $defaults = array( 'type' => 'boolean', 'variadic' => false, 'description' => '', 'show_in_rest' => false, ); $args = wp_parse_args( $args, $defaults ); if ( true === $args['show_in_rest'] ) { $args['show_in_rest'] = array(); } if ( is_array( $args['show_in_rest'] ) ) { $args['show_in_rest'] = wp_parse_args( $args['show_in_rest'], array( 'schema' => array(), 'name' => $feature, 'prepare_callback' => null, ) ); } if ( ! in_array( $args['type'], array( 'string', 'boolean', 'integer', 'number', 'array', 'object' ), true ) ) { return new WP_Error( 'invalid_type', __( 'The feature "type" is not valid JSON Schema type.' ) ); } if ( true === $args['variadic'] && 'array' !== $args['type'] ) { return new WP_Error( 'variadic_must_be_array', __( 'When registering a "variadic" theme feature, the "type" must be an "array".' ) ); } if ( false !== $args['show_in_rest'] && in_array( $args['type'], array( 'array', 'object' ), true ) ) { if ( ! is_array( $args['show_in_rest'] ) || empty( $args['show_in_rest']['schema'] ) ) { return new WP_Error( 'missing_schema', __( 'When registering an "array" or "object" feature to show in the REST API, the feature\'s schema must also be defined.' ) ); } if ( 'array' === $args['type'] && ! isset( $args['show_in_rest']['schema']['items'] ) ) { return new WP_Error( 'missing_schema_items', __( 'When registering an "array" feature, the feature\'s schema must include the "items" keyword.' ) ); } if ( 'object' === $args['type'] && ! isset( $args['show_in_rest']['schema']['properties'] ) ) { return new WP_Error( 'missing_schema_properties', __( 'When registering an "object" feature, the feature\'s schema must include the "properties" keyword.' ) ); } } if ( is_array( $args['show_in_rest'] ) ) { if ( isset( $args['show_in_rest']['prepare_callback'] ) && ! is_callable( $args['show_in_rest']['prepare_callback'] ) ) { return new WP_Error( 'invalid_rest_prepare_callback', sprintf( /* translators: %s: prepare_callback */ __( 'The "%s" must be a callable function.' ), 'prepare_callback' ) ); } $args['show_in_rest']['schema'] = wp_parse_args( $args['show_in_rest']['schema'], array( 'description' => $args['description'], 'type' => $args['type'], 'default' => false, ) ); if ( is_bool( $args['show_in_rest']['schema']['default'] ) && ! in_array( 'boolean', (array) $args['show_in_rest']['schema']['type'], true ) ) { // Automatically include the "boolean" type when the default value is a boolean. $args['show_in_rest']['schema']['type'] = (array) $args['show_in_rest']['schema']['type']; array_unshift( $args['show_in_rest']['schema']['type'], 'boolean' ); } $args['show_in_rest']['schema'] = rest_default_additional_properties_to_false( $args['show_in_rest']['schema'] ); } $_wp_registered_theme_features[ $feature ] = $args; return true; } /** * Gets the list of registered theme features. * * @since 5.5.0 * * @global array $_wp_registered_theme_features * * @return array[] List of theme features, keyed by their name. */ function get_registered_theme_features() { global $_wp_registered_theme_features; if ( ! is_array( $_wp_registered_theme_features ) ) { return array(); } return $_wp_registered_theme_features; } /** * Gets the registration config for a theme feature. * * @since 5.5.0 * * @global array $_wp_registered_theme_features * * @param string $feature The feature name. See add_theme_support() for the list * of possible values. * @return array|null The registration args, or null if the feature was not registered. */ function get_registered_theme_feature( $feature ) { global $_wp_registered_theme_features; if ( ! is_array( $_wp_registered_theme_features ) ) { return null; } return isset( $_wp_registered_theme_features[ $feature ] ) ? $_wp_registered_theme_features[ $feature ] : null; } /** * 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() { $stylesheet = get_option( 'theme_switched' ); if ( $stylesheet ) { $old_theme = wp_get_theme( $stylesheet ); // Prevent widget & menu mapping from running since Customizer already called it up front. if ( get_option( 'theme_switched_via_customizer' ) ) { remove_action( 'after_switch_theme', '_wp_menus_changed' ); 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, $old_theme ); } 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', 'customize_autosaved' ); $input_vars = array_merge( wp_array_slice_assoc( $_GET, $keys ), wp_array_slice_assoc( $_POST, $keys ) ); $theme = null; $autosaved = null; $messenger_channel = null; // Value false indicates UUID should be determined after_setup_theme // to either re-use existing saved changeset or else generate a new UUID if none exists. $changeset_uuid = false; // Set initially fo false since defaults to true for back-compat; // can be overridden via the customize_changeset_branching filter. $branching = false; 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 ( ! empty( $input_vars['customize_autosaved'] ) ) { $autosaved = true; } if ( isset( $input_vars['customize_messenger_channel'] ) ) { $messenger_channel = sanitize_key( $input_vars['customize_messenger_channel'] ); } /* * Note that settings must be previewed even outside the customizer preview * and also in the customizer pane itself. This is to enable loading an existing * changeset into the customizer. Previewing the settings only has to be prevented * here in the case of a customize_save action because this will cause WP to think * there is nothing changed that needs to be saved. */ $is_customize_save_action = ( wp_doing_ajax() && isset( $_REQUEST['action'] ) && 'customize_save' === wp_unslash( $_REQUEST['action'] ) ); $settings_previewed = ! $is_customize_save_action; require_once ABSPATH . WPINC . '/class-wp-customize-manager.php'; $GLOBALS['wp_customize'] = new WP_Customize_Manager( compact( 'changeset_uuid', 'theme', 'messenger_channel', 'settings_previewed', 'autosaved', 'branching' ) ); } /** * Publishes a snapshot's changes. * * @since 4.7.0 * @access private * * @global wpdb $wpdb WordPress database abstraction object. * @global WP_Customize_Manager $wp_customize Customizer instance. * * @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, 'settings_previewed' => false, ) ); } 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. This 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 ) ) { $wp_customize->trash_changeset_post( $changeset_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. * @return 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 = '' ) { $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. * @since 5.5.0 IE8 and older are no longer supported. */ 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'] ) ); $type_attr = current_theme_supports( 'html5', 'script' ) ? '' : ' type="text/javascript"'; ?> <script<?php echo $type_attr; ?>> (function() { var request, b = document.body, c = 'className', cs = 'customize-support', rcs = new RegExp('(^|\\s+)(no-)?'+cs+'(\\s+|$)'); <?php if ( $cross_domain ) : ?> request = (function(){ var xhr = new XMLHttpRequest(); return ('withCredentials' in xhr); })(); <?php else : ?> request = true; <?php endif; ?> b[c] = b[c].replace( rcs, ' ' ); // The customizer requires postMessage and CORS (if the site is cross domain). b[c] += ( window.postMessage && request ? ' ' : ' no-' ) + cs; }()); </script> <?php } /** * Whether the site is being previewed in the Customizer. * * @since 4.0.0 * * @global WP_Customize_Manager $wp_customize Customizer instance. * * @return bool True if the site is being previewed in the Customizer, false otherwise. */ function is_customize_preview() { global $wp_customize; return ( $wp_customize instanceof WP_Customize_Manager ) && $wp_customize->is_preview(); } /** * Makes sure that auto-draft posts get their post_date bumped or status changed to draft to prevent premature garbage-collection. * * When a changeset is updated but remains an auto-draft, ensure the post_date * for the auto-draft posts remains the same so that it will be * garbage-collected at the same time by `wp_delete_auto_drafts()`. Otherwise, * if the changeset is updated to be a draft then update the posts * to have a far-future post_date so that they will never be garbage collected * unless the changeset post itself is deleted. * * When a changeset is updated to be a persistent draft or to be scheduled for * publishing, then transition any dependent auto-drafts to a draft status so * that they likewise will not be garbage-collected but also so that they can * be edited in the admin before publishing since there is not yet a post/page * editing flow in the Customizer. See #39752. * * @link https://core.trac.wordpress.org/ticket/39752 * * @since 4.8.0 * @access private * @see wp_delete_auto_drafts() * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $new_status Transition to this post status. * @param string $old_status Previous post status. * @param \WP_Post $post Post data. */ function _wp_keep_alive_customize_changeset_dependent_auto_drafts( $new_status, $old_status, $post ) { global $wpdb; unset( $old_status ); // Short-circuit if not a changeset or if the changeset was published. if ( 'customize_changeset' !== $post->post_type || 'publish' === $new_status ) { return; } $data = json_decode( $post->post_content, true ); if ( empty( $data['nav_menus_created_posts']['value'] ) ) { return; } /* * Actually, in lieu of keeping alive, trash any customization drafts here if the changeset itself is * getting trashed. This is needed because when a changeset transitions to a draft, then any of the * dependent auto-draft post/page stubs will also get transitioned to customization drafts which * are then visible in the WP Admin. We cannot wait for the deletion of the changeset in which * _wp_delete_customize_changeset_dependent_auto_drafts() will be called, since they need to be * trashed to remove from visibility immediately. */ if ( 'trash' === $new_status ) { foreach ( $data['nav_menus_created_posts']['value'] as $post_id ) { if ( ! empty( $post_id ) && 'draft' === get_post_status( $post_id ) ) { wp_trash_post( $post_id ); } } return; } $post_args = array(); if ( 'auto-draft' === $new_status ) { /* * Keep the post date for the post matching the changeset * so that it will not be garbage-collected before the changeset. */ $post_args['post_date'] = $post->post_date; // Note wp_delete_auto_drafts() only looks at this date. } else { /* * Since the changeset no longer has an auto-draft (and it is not published) * it is now a persistent changeset, a long-lived draft, and so any * associated auto-draft posts should likewise transition into having a draft * status. These drafts will be treated differently than regular drafts in * that they will be tied to the given changeset. The publish meta box is * replaced with a notice about how the post is part of a set of customized changes * which will be published when the changeset is published. */ $post_args['post_status'] = 'draft'; } foreach ( $data['nav_menus_created_posts']['value'] as $post_id ) { if ( empty( $post_id ) || 'auto-draft' !== get_post_status( $post_id ) ) { continue; } $wpdb->update( $wpdb->posts, $post_args, array( 'ID' => $post_id ) ); clean_post_cache( $post_id ); } } /** * Creates the initial theme features when the 'setup_theme' action is fired. * * See {@see 'setup_theme'}. * * @since 5.5.0 */ function create_initial_theme_features() { register_theme_feature( 'align-wide', array( 'description' => __( 'Whether theme opts in to wide alignment CSS class.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'automatic-feed-links', array( 'description' => __( 'Whether posts and comments RSS feed links are added to head.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'custom-background', array( 'description' => __( 'Custom background if defined by the theme.' ), 'type' => 'object', 'show_in_rest' => array( 'schema' => array( 'properties' => array( 'default-image' => array( 'type' => 'string', 'format' => 'uri', ), 'default-preset' => array( 'type' => 'string', 'enum' => array( 'default', 'fill', 'fit', 'repeat', 'custom', ), ), 'default-position-x' => array( 'type' => 'string', 'enum' => array( 'left', 'center', 'right', ), ), 'default-position-y' => array( 'type' => 'string', 'enum' => array( 'left', 'center', 'right', ), ), 'default-size' => array( 'type' => 'string', 'enum' => array( 'auto', 'contain', 'cover', ), ), 'default-repeat' => array( 'type' => 'string', 'enum' => array( 'repeat-x', 'repeat-y', 'repeat', 'no-repeat', ), ), 'default-attachment' => array( 'type' => 'string', 'enum' => array( 'scroll', 'fixed', ), ), 'default-color' => array( 'type' => 'string', ), ), ), ), ) ); register_theme_feature( 'custom-header', array( 'description' => __( 'Custom header if defined by the theme.' ), 'type' => 'object', 'show_in_rest' => array( 'schema' => array( 'properties' => array( 'default-image' => array( 'type' => 'string', 'format' => 'uri', ), 'random-default' => array( 'type' => 'boolean', ), 'width' => array( 'type' => 'integer', ), 'height' => array( 'type' => 'integer', ), 'flex-height' => array( 'type' => 'boolean', ), 'flex-width' => array( 'type' => 'boolean', ), 'default-text-color' => array( 'type' => 'string', ), 'header-text' => array( 'type' => 'boolean', ), 'uploads' => array( 'type' => 'boolean', ), 'video' => array( 'type' => 'boolean', ), ), ), ), ) ); register_theme_feature( 'custom-logo', array( 'type' => 'object', 'description' => __( 'Custom logo if defined by the theme.' ), 'show_in_rest' => array( 'schema' => array( 'properties' => array( 'width' => array( 'type' => 'integer', ), 'height' => array( 'type' => 'integer', ), 'flex-width' => array( 'type' => 'boolean', ), 'flex-height' => array( 'type' => 'boolean', ), 'header-text' => array( 'type' => 'array', 'items' => array( 'type' => 'string', ), ), 'unlink-homepage-logo' => array( 'type' => 'boolean', ), ), ), ), ) ); register_theme_feature( 'customize-selective-refresh-widgets', array( 'description' => __( 'Whether the theme enables Selective Refresh for Widgets being managed with the Customizer.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'dark-editor-style', array( 'description' => __( 'Whether theme opts in to the dark editor style UI.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'disable-custom-colors', array( 'description' => __( 'Whether the theme disables custom colors.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'disable-custom-font-sizes', array( 'description' => __( 'Whether the theme disables custom font sizes.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'disable-custom-gradients', array( 'description' => __( 'Whether the theme disables custom gradients.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'editor-color-palette', array( 'type' => 'array', 'description' => __( 'Custom color palette if defined by the theme.' ), 'show_in_rest' => array( 'schema' => array( 'items' => array( 'type' => 'object', 'properties' => array( 'name' => array( 'type' => 'string', ), 'slug' => array( 'type' => 'string', ), 'color' => array( 'type' => 'string', ), ), ), ), ), ) ); register_theme_feature( 'editor-font-sizes', array( 'type' => 'array', 'description' => __( 'Custom font sizes if defined by the theme.' ), 'show_in_rest' => array( 'schema' => array( 'items' => array( 'type' => 'object', 'properties' => array( 'name' => array( 'type' => 'string', ), 'size' => array( 'type' => 'number', ), 'slug' => array( 'type' => 'string', ), ), ), ), ), ) ); register_theme_feature( 'editor-gradient-presets', array( 'type' => 'array', 'description' => __( 'Custom gradient presets if defined by the theme.' ), 'show_in_rest' => array( 'schema' => array( 'items' => array( 'type' => 'object', 'properties' => array( 'name' => array( 'type' => 'string', ), 'gradient' => array( 'type' => 'string', ), 'slug' => array( 'type' => 'string', ), ), ), ), ), ) ); register_theme_feature( 'editor-styles', array( 'description' => __( 'Whether theme opts in to the editor styles CSS wrapper.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'html5', array( 'type' => 'array', 'description' => __( 'Allows use of HTML5 markup for search forms, comment forms, comment lists, gallery, and caption.' ), 'show_in_rest' => array( 'schema' => array( 'items' => array( 'type' => 'string', 'enum' => array( 'search-form', 'comment-form', 'comment-list', 'gallery', 'caption', 'script', 'style', ), ), ), ), ) ); register_theme_feature( 'post-formats', array( 'type' => 'array', 'description' => __( 'Post formats supported.' ), 'show_in_rest' => array( 'name' => 'formats', 'schema' => array( 'items' => array( 'type' => 'string', 'enum' => get_post_format_slugs(), ), 'default' => array( 'standard' ), ), 'prepare_callback' => static function ( $formats ) { $formats = is_array( $formats ) ? array_values( $formats[0] ) : array(); $formats = array_merge( array( 'standard' ), $formats ); return $formats; }, ), ) ); register_theme_feature( 'post-thumbnails', array( 'type' => 'array', 'description' => __( 'The post types that support thumbnails or true if all post types are supported.' ), 'show_in_rest' => array( 'type' => array( 'boolean', 'array' ), 'schema' => array( 'items' => array( 'type' => 'string', ), ), ), ) ); register_theme_feature( 'responsive-embeds', array( 'description' => __( 'Whether the theme supports responsive embedded content.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'title-tag', array( 'description' => __( 'Whether the theme can manage the document title tag.' ), 'show_in_rest' => true, ) ); register_theme_feature( 'wp-block-styles', array( 'description' => __( 'Whether theme opts in to default WordPress block styles for viewing.' ), 'show_in_rest' => true, ) ); }
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