X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/11be8dc178e77d0b46189bbd8e33a216a9b90942..refs/tags/wordpress-3.1-scripts:/wp-includes/theme.php?ds=sidebyside diff --git a/wp-includes/theme.php b/wp-includes/theme.php index 4634075a..c2960557 100644 --- a/wp-includes/theme.php +++ b/wp-includes/theme.php @@ -6,6 +6,17 @@ * @subpackage Template */ +/** + * Whether a child theme is in use. + * + * @since 3.0.0 + * + * @return bool true if a child theme is in use, false otherwise. + **/ +function is_child_theme() { + return ( TEMPLATEPATH !== STYLESHEETPATH ); +} + /** * Retrieve name of the current stylesheet. * @@ -34,8 +45,10 @@ function get_stylesheet() { */ function get_stylesheet_directory() { $stylesheet = get_stylesheet(); - $stylesheet_dir = get_theme_root() . "/$stylesheet"; - return apply_filters('stylesheet_directory', $stylesheet_dir, $stylesheet); + $theme_root = get_theme_root( $stylesheet ); + $stylesheet_dir = "$theme_root/$stylesheet"; + + return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root ); } /** @@ -47,8 +60,10 @@ function get_stylesheet_directory() { */ function get_stylesheet_directory_uri() { $stylesheet = get_stylesheet(); - $stylesheet_dir_uri = get_theme_root_uri() . "/$stylesheet"; - return apply_filters('stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet); + $theme_root_uri = get_theme_root_uri( $stylesheet ); + $stylesheet_dir_uri = "$theme_root_uri/$stylesheet"; + + return apply_filters( 'stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet, $theme_root_uri ); } /** @@ -123,8 +138,10 @@ function get_template() { */ function get_template_directory() { $template = get_template(); - $template_dir = get_theme_root() . "/$template"; - return apply_filters('template_directory', $template_dir, $template); + $theme_root = get_theme_root( $template ); + $template_dir = "$theme_root/$template"; + + return apply_filters( 'template_directory', $template_dir, $template, $theme_root ); } /** @@ -137,8 +154,10 @@ function get_template_directory() { */ function get_template_directory_uri() { $template = get_template(); - $template_dir_uri = get_theme_root_uri() . "/$template"; - return apply_filters('template_directory_uri', $template_dir_uri, $template); + $theme_root_uri = get_theme_root_uri( $template ); + $template_dir_uri = "$theme_root_uri/$template"; + + return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri ); } /** @@ -147,7 +166,7 @@ function get_template_directory_uri() { * The description will have the tags filtered with the following HTML elements * whitelisted. The 'a' element with the href and title * attributes. The abbr element with the title attribute. The - * acronym element with the title attribute allowed. The + * acronym element with the title attribute allowed. The * code, em, and strong elements also allowed. * * The style.css file must contain theme name, theme URI, and description. The @@ -162,6 +181,18 @@ function get_template_directory_uri() { * @return array Theme data. */ function get_theme_data( $theme_file ) { + $default_headers = array( + 'Name' => 'Theme Name', + 'URI' => 'Theme URI', + 'Description' => 'Description', + 'Author' => 'Author', + 'AuthorURI' => 'Author URI', + 'Version' => 'Version', + 'Template' => 'Template', + 'Status' => 'Status', + 'Tags' => 'Tags' + ); + $themes_allowed_tags = array( 'a' => array( 'href' => array(),'title' => array() @@ -177,52 +208,42 @@ function get_theme_data( $theme_file ) { 'strong' => array() ); - $theme_data = implode( '', file( $theme_file ) ); - $theme_data = str_replace ( '\r', '\n', $theme_data ); - preg_match( '|Theme Name:(.*)$|mi', $theme_data, $theme_name ); - preg_match( '|Theme URI:(.*)$|mi', $theme_data, $theme_uri ); - preg_match( '|Description:(.*)$|mi', $theme_data, $description ); + $theme_data = get_file_data( $theme_file, $default_headers, 'theme' ); - if ( preg_match( '|Author URI:(.*)$|mi', $theme_data, $author_uri ) ) - $author_uri = clean_url( trim( $author_uri[1]) ); - else - $author_uri = ''; + $theme_data['Name'] = $theme_data['Title'] = wp_kses( $theme_data['Name'], $themes_allowed_tags ); - if ( preg_match( '|Template:(.*)$|mi', $theme_data, $template ) ) - $template = wp_kses( trim( $template[1] ), $themes_allowed_tags ); - else - $template = ''; + $theme_data['URI'] = esc_url( $theme_data['URI'] ); - if ( preg_match( '|Version:(.*)|i', $theme_data, $version ) ) - $version = wp_kses( trim( $version[1] ), $themes_allowed_tags ); - else - $version = ''; + $theme_data['Description'] = wptexturize( wp_kses( $theme_data['Description'], $themes_allowed_tags ) ); - if ( preg_match('|Status:(.*)|i', $theme_data, $status) ) - $status = wp_kses( trim( $status[1] ), $themes_allowed_tags ); - else - $status = 'publish'; + $theme_data['AuthorURI'] = esc_url( $theme_data['AuthorURI'] ); + + $theme_data['Template'] = wp_kses( $theme_data['Template'], $themes_allowed_tags ); - if ( preg_match('|Tags:(.*)|i', $theme_data, $tags) ) - $tags = array_map( 'trim', explode( ',', wp_kses( trim( $tags[1] ), array() ) ) ); + $theme_data['Version'] = wp_kses( $theme_data['Version'], $themes_allowed_tags ); + + if ( $theme_data['Status'] == '' ) + $theme_data['Status'] = 'publish'; else - $tags = array(); + $theme_data['Status'] = wp_kses( $theme_data['Status'], $themes_allowed_tags ); - $name = $theme = wp_kses( trim( $theme_name[1] ), $themes_allowed_tags ); - $theme_uri = clean_url( trim( $theme_uri[1] ) ); - $description = wptexturize( wp_kses( trim( $description[1] ), $themes_allowed_tags ) ); + if ( $theme_data['Tags'] == '' ) + $theme_data['Tags'] = array(); + else + $theme_data['Tags'] = array_map( 'trim', explode( ',', wp_kses( $theme_data['Tags'], array() ) ) ); - if ( preg_match( '|Author:(.*)$|mi', $theme_data, $author_name ) ) { - if ( empty( $author_uri ) ) { - $author = wp_kses( trim( $author_name[1] ), $themes_allowed_tags ); + if ( $theme_data['Author'] == '' ) { + $theme_data['Author'] = $theme_data['AuthorName'] = __('Anonymous'); + } else { + $theme_data['AuthorName'] = wp_kses( $theme_data['Author'], $themes_allowed_tags ); + if ( empty( $theme_data['AuthorURI'] ) ) { + $theme_data['Author'] = $theme_data['AuthorName']; } else { - $author = sprintf( '%3$s', $author_uri, __( 'Visit author homepage' ), wp_kses( trim( $author_name[1] ), $themes_allowed_tags ) ); + $theme_data['Author'] = sprintf( '%3$s', $theme_data['AuthorURI'], esc_attr__( 'Visit author homepage' ), $theme_data['AuthorName'] ); } - } else { - $author = __('Anonymous'); } - return array( 'Name' => $name, 'Title' => $theme, 'URI' => $theme_uri, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Status' => $status, 'Tags' => $tags ); + return $theme_data; } /** @@ -246,65 +267,17 @@ function get_themes() { if ( isset($wp_themes) ) return $wp_themes; - $themes = array(); - $wp_broken_themes = array(); - $theme_loc = $theme_root = get_theme_root(); - if ( '/' != WP_CONTENT_DIR ) // don't want to replace all forward slashes, see Trac #4541 - $theme_loc = str_replace(WP_CONTENT_DIR, '', $theme_root); - - // Files in wp-content/themes directory and one subdir down - $themes_dir = @ opendir($theme_root); - if ( !$themes_dir ) + if ( !$theme_files = search_theme_directories() ) return false; - while ( ($theme_dir = readdir($themes_dir)) !== false ) { - if ( is_dir($theme_root . '/' . $theme_dir) && is_readable($theme_root . '/' . $theme_dir) ) { - if ( $theme_dir{0} == '.' || $theme_dir == '..' || $theme_dir == 'CVS' ) - continue; - $stylish_dir = @ opendir($theme_root . '/' . $theme_dir); - $found_stylesheet = false; - while ( ($theme_file = readdir($stylish_dir)) !== false ) { - if ( $theme_file == 'style.css' ) { - $theme_files[] = $theme_dir . '/' . $theme_file; - $found_stylesheet = true; - break; - } - } - @closedir($stylish_dir); - if ( !$found_stylesheet ) { // look for themes in that dir - $subdir = "$theme_root/$theme_dir"; - $subdir_name = $theme_dir; - $theme_subdir = @ opendir( $subdir ); - while ( ($theme_dir = readdir($theme_subdir)) !== false ) { - if ( is_dir( $subdir . '/' . $theme_dir) && is_readable($subdir . '/' . $theme_dir) ) { - if ( $theme_dir{0} == '.' || $theme_dir == '..' || $theme_dir == 'CVS' ) - continue; - $stylish_dir = @ opendir($subdir . '/' . $theme_dir); - $found_stylesheet = false; - while ( ($theme_file = readdir($stylish_dir)) !== false ) { - if ( $theme_file == 'style.css' ) { - $theme_files[] = $subdir_name . '/' . $theme_dir . '/' . $theme_file; - $found_stylesheet = true; - break; - } - } - @closedir($stylish_dir); - } - } - @closedir($theme_subdir); - $wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.')); - } - } - } - if ( is_dir( $theme_dir ) ) - @closedir( $theme_dir ); - - if ( !$themes_dir || !$theme_files ) - return $themes; + asort( $theme_files ); - sort($theme_files); + $wp_themes = array(); foreach ( (array) $theme_files as $theme_file ) { + $theme_root = $theme_file['theme_root']; + $theme_file = $theme_file['theme_file']; + if ( !is_readable("$theme_root/$theme_file") ) { $wp_broken_themes[$theme_file] = array('Name' => $theme_file, 'Title' => $theme_file, 'Description' => __('File not readable.')); continue; @@ -333,23 +306,40 @@ function get_themes() { $title = $name; } + $parent_template = $template; + if ( empty($template) ) { - if ( file_exists(dirname("$theme_root/$theme_file/index.php")) ) - $template = dirname($theme_file); + if ( file_exists("$theme_root/$stylesheet/index.php") ) + $template = $stylesheet; else continue; } - $template = trim($template); + $template = trim( $template ); if ( !file_exists("$theme_root/$template/index.php") ) { $parent_dir = dirname(dirname($theme_file)); if ( file_exists("$theme_root/$parent_dir/$template/index.php") ) { $template = "$parent_dir/$template"; + $template_directory = "$theme_root/$template"; } else { - $wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.')); - continue; + /** + * The parent theme doesn't exist in the current theme's folder or sub folder + * so lets use the theme root for the parent template. + */ + if ( isset($theme_files[$template]) && file_exists( $theme_files[$template]['theme_root'] . "/$template/index.php" ) ) { + $template_directory = $theme_files[$template]['theme_root'] . "/$template"; + } else { + if ( empty( $parent_template) ) + $wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.'), 'error' => 'no_template'); + else + $wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => sprintf( __('The parent theme is missing. Please install the "%s" parent theme.'), $parent_template ), 'error' => 'no_parent', 'parent' => $parent_template ); + continue; + } + } + } else { + $template_directory = trim( $theme_root . '/' . $template ); } $stylesheet_files = array(); @@ -360,23 +350,43 @@ function get_themes() { while ( ($file = $stylesheet_dir->read()) !== false ) { if ( !preg_match('|^\.+$|', $file) ) { if ( preg_match('|\.css$|', $file) ) - $stylesheet_files[] = "$theme_loc/$stylesheet/$file"; + $stylesheet_files[] = "$theme_root/$stylesheet/$file"; elseif ( preg_match('|\.php$|', $file) ) - $template_files[] = "$theme_loc/$stylesheet/$file"; + $template_files[] = "$theme_root/$stylesheet/$file"; } } + @ $stylesheet_dir->close(); } - $template_dir = @ dir("$theme_root/$template"); + $template_dir = @ dir("$template_directory"); if ( $template_dir ) { - while(($file = $template_dir->read()) !== false) { - if ( !preg_match('|^\.+$|', $file) && preg_match('|\.php$|', $file) ) - $template_files[] = "$theme_loc/$template/$file"; + while ( ($file = $template_dir->read()) !== false ) { + if ( preg_match('|^\.+$|', $file) ) + continue; + if ( preg_match('|\.php$|', $file) ) { + $template_files[] = "$template_directory/$file"; + } elseif ( is_dir("$template_directory/$file") ) { + $template_subdir = @ dir("$template_directory/$file"); + if ( !$template_subdir ) + continue; + while ( ($subfile = $template_subdir->read()) !== false ) { + if ( preg_match('|^\.+$|', $subfile) ) + continue; + if ( preg_match('|\.php$|', $subfile) ) + $template_files[] = "$template_directory/$file/$subfile"; + } + @ $template_subdir->close(); + } } + @ $template_dir->close(); } - $template_dir = dirname($template_files[0]); - $stylesheet_dir = dirname($stylesheet_files[0]); + //Make unique and remove duplicates when stylesheet and template are the same i.e. most themes + $template_files = array_unique($template_files); + $stylesheet_files = array_unique($stylesheet_files); + + $template_dir = $template_directory; + $stylesheet_dir = $theme_root . '/' . $stylesheet; if ( empty($template_dir) ) $template_dir = '/'; @@ -386,42 +396,91 @@ function get_themes() { // Check for theme name collision. This occurs if a theme is copied to // a new theme directory and the theme header is not updated. Whichever // theme is first keeps the name. Subsequent themes get a suffix applied. - // The Default and Classic themes always trump their pretenders. - if ( isset($themes[$name]) ) { - if ( ('WordPress Default' == $name || 'WordPress Classic' == $name) && - ('default' == $stylesheet || 'classic' == $stylesheet) ) { + // The Twenty Ten, Default and Classic themes always trump their pretenders. + if ( isset($wp_themes[$name]) ) { + $trump_cards = array( + 'classic' => 'WordPress Classic', + 'default' => 'WordPress Default', + 'twentyten' => 'Twenty Ten', + ); + if ( isset( $trump_cards[ $stylesheet ] ) && $name == $trump_cards[ $stylesheet ] ) { // If another theme has claimed to be one of our default themes, move // them aside. - $suffix = $themes[$name]['Stylesheet']; + $suffix = $wp_themes[$name]['Stylesheet']; $new_name = "$name/$suffix"; - $themes[$new_name] = $themes[$name]; - $themes[$new_name]['Name'] = $new_name; + $wp_themes[$new_name] = $wp_themes[$name]; + $wp_themes[$new_name]['Name'] = $new_name; } else { $name = "$name/$stylesheet"; } } - $themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => $description, 'Author' => $author, 'Version' => $version, 'Template' => $template, 'Stylesheet' => $stylesheet, 'Template Files' => $template_files, 'Stylesheet Files' => $stylesheet_files, 'Template Dir' => $template_dir, 'Stylesheet Dir' => $stylesheet_dir, 'Status' => $theme_data['Status'], 'Screenshot' => $screenshot, 'Tags' => $theme_data['Tags']); + $theme_roots[$stylesheet] = str_replace( WP_CONTENT_DIR, '', $theme_root ); + $wp_themes[$name] = array( + 'Name' => $name, + 'Title' => $title, + 'Description' => $description, + 'Author' => $author, + 'Author Name' => $theme_data['AuthorName'], + 'Author URI' => $theme_data['AuthorURI'], + 'Version' => $version, + 'Template' => $template, + 'Stylesheet' => $stylesheet, + 'Template Files' => $template_files, + 'Stylesheet Files' => $stylesheet_files, + 'Template Dir' => $template_dir, + 'Stylesheet Dir' => $stylesheet_dir, + 'Status' => $theme_data['Status'], + 'Screenshot' => $screenshot, + 'Tags' => $theme_data['Tags'], + 'Theme Root' => $theme_root, + 'Theme Root URI' => str_replace( WP_CONTENT_DIR, content_url(), $theme_root ), + ); } - // Resolve theme dependencies. - $theme_names = array_keys($themes); + unset($theme_files); + + /* Store theme roots in the DB */ + if ( get_site_transient( 'theme_roots' ) != $theme_roots ) + set_site_transient( 'theme_roots', $theme_roots, 7200 ); // cache for two hours + unset($theme_roots); + /* Resolve theme dependencies. */ + $theme_names = array_keys( $wp_themes ); foreach ( (array) $theme_names as $theme_name ) { - $themes[$theme_name]['Parent Theme'] = ''; - if ( $themes[$theme_name]['Stylesheet'] != $themes[$theme_name]['Template'] ) { + $wp_themes[$theme_name]['Parent Theme'] = ''; + if ( $wp_themes[$theme_name]['Stylesheet'] != $wp_themes[$theme_name]['Template'] ) { foreach ( (array) $theme_names as $parent_theme_name ) { - if ( ($themes[$parent_theme_name]['Stylesheet'] == $themes[$parent_theme_name]['Template']) && ($themes[$parent_theme_name]['Template'] == $themes[$theme_name]['Template']) ) { - $themes[$theme_name]['Parent Theme'] = $themes[$parent_theme_name]['Name']; + if ( ($wp_themes[$parent_theme_name]['Stylesheet'] == $wp_themes[$parent_theme_name]['Template']) && ($wp_themes[$parent_theme_name]['Template'] == $wp_themes[$theme_name]['Template']) ) { + $wp_themes[$theme_name]['Parent Theme'] = $wp_themes[$parent_theme_name]['Name']; break; } } } } - $wp_themes = $themes; + return $wp_themes; +} + +/** + * Retrieve theme roots. + * + * @since 2.9.0 + * + * @return array|string An arry of theme roots keyed by template/stylesheet or a single theme root if all themes have the same root. + */ +function get_theme_roots() { + global $wp_theme_directories; + + if ( count($wp_theme_directories) <= 1 ) + return '/themes'; - return $themes; + $theme_roots = get_site_transient( 'theme_roots' ); + if ( false === $theme_roots ) { + get_themes(); + $theme_roots = get_site_transient( 'theme_roots' ); // this is set in get_theme() + } + return $theme_roots; } /** @@ -460,7 +519,7 @@ function get_current_theme() { $theme_names = array_keys($themes); $current_template = get_option('template'); $current_stylesheet = get_option('stylesheet'); - $current_theme = 'WordPress Default'; + $current_theme = 'Twenty Ten'; if ( $themes ) { foreach ( (array) $theme_names as $theme_name ) { @@ -477,6 +536,115 @@ function get_current_theme() { return $current_theme; } +/** + * Register a directory that contains themes. + * + * @since 2.9.0 + * + * @param string $directory Either the full filesystem path to a theme folder or a folder within WP_CONTENT_DIR + * @return bool + */ +function register_theme_directory( $directory) { + global $wp_theme_directories; + + /* If this folder does not exist, return and do not register */ + if ( !file_exists( $directory ) ) + /* Try prepending as the theme directory could be relative to the content directory */ + $registered_directory = WP_CONTENT_DIR . '/' . $directory; + else + $registered_directory = $directory; + + /* If this folder does not exist, return and do not register */ + if ( !file_exists( $registered_directory ) ) + return false; + + $wp_theme_directories[] = $registered_directory; + + return true; +} + +/** + * Search all registered theme directories for complete and valid themes. + * + * @since 2.9.0 + * + * @return array Valid themes found + */ +function search_theme_directories() { + global $wp_theme_directories, $wp_broken_themes; + if ( empty( $wp_theme_directories ) ) + return false; + + $theme_files = array(); + $wp_broken_themes = array(); + + /* Loop the registered theme directories and extract all themes */ + foreach ( (array) $wp_theme_directories as $theme_root ) { + $theme_loc = $theme_root; + + /* We don't want to replace all forward slashes, see Trac #4541 */ + if ( '/' != WP_CONTENT_DIR ) + $theme_loc = str_replace(WP_CONTENT_DIR, '', $theme_root); + + /* Files in the root of the current theme directory and one subdir down */ + $themes_dir = @ opendir($theme_root); + + if ( !$themes_dir ) + return false; + + while ( ($theme_dir = readdir($themes_dir)) !== false ) { + if ( is_dir($theme_root . '/' . $theme_dir) && is_readable($theme_root . '/' . $theme_dir) ) { + if ( $theme_dir[0] == '.' || $theme_dir == 'CVS' ) + continue; + + $stylish_dir = @opendir($theme_root . '/' . $theme_dir); + $found_stylesheet = false; + + while ( ($theme_file = readdir($stylish_dir)) !== false ) { + if ( $theme_file == 'style.css' ) { + $theme_files[$theme_dir] = array( 'theme_file' => $theme_dir . '/' . $theme_file, 'theme_root' => $theme_root ); + $found_stylesheet = true; + break; + } + } + @closedir($stylish_dir); + + if ( !$found_stylesheet ) { // look for themes in that dir + $subdir = "$theme_root/$theme_dir"; + $subdir_name = $theme_dir; + $theme_subdirs = @opendir( $subdir ); + + $found_subdir_themes = false; + while ( ($theme_subdir = readdir($theme_subdirs)) !== false ) { + if ( is_dir( $subdir . '/' . $theme_subdir) && is_readable($subdir . '/' . $theme_subdir) ) { + if ( $theme_subdir[0] == '.' || $theme_subdir == 'CVS' ) + continue; + + $stylish_dir = @opendir($subdir . '/' . $theme_subdir); + $found_stylesheet = false; + + while ( ($theme_file = readdir($stylish_dir)) !== false ) { + if ( $theme_file == 'style.css' ) { + $theme_files["$theme_dir/$theme_subdir"] = array( 'theme_file' => $subdir_name . '/' . $theme_subdir . '/' . $theme_file, 'theme_root' => $theme_root ); + $found_stylesheet = true; + $found_subdir_themes = true; + break; + } + } + @closedir($stylish_dir); + } + } + @closedir($theme_subdirs); + if ( !$found_subdir_themes ) + $wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.')); + } + } + } + @closedir( $themes_dir ); + } + return $theme_files; +} + /** * Retrieve path to themes directory. * @@ -485,10 +653,20 @@ function get_current_theme() { * @since 1.5.0 * @uses apply_filters() Calls 'theme_root' filter on path. * + * @param string $stylesheet_or_template The stylesheet or template name of the theme * @return string Theme path. */ -function get_theme_root() { - return apply_filters('theme_root', WP_CONTENT_DIR . "/themes"); +function get_theme_root( $stylesheet_or_template = false ) { + if ( $stylesheet_or_template ) { + if ( $theme_root = get_raw_theme_root($stylesheet_or_template) ) + $theme_root = WP_CONTENT_DIR . $theme_root; + else + $theme_root = WP_CONTENT_DIR . '/themes'; + } else { + $theme_root = WP_CONTENT_DIR . '/themes'; + } + + return apply_filters( 'theme_root', $theme_root ); } /** @@ -498,39 +676,87 @@ function get_theme_root() { * * @since 1.5.0 * + * @param string $stylesheet_or_template The stylesheet or template name of the theme * @return string Themes URI. */ -function get_theme_root_uri() { - return apply_filters('theme_root_uri', content_url('themes'), get_option('siteurl')); +function get_theme_root_uri( $stylesheet_or_template = false ) { + if ( $stylesheet_or_template ) { + if ( $theme_root = get_raw_theme_root($stylesheet_or_template) ) + $theme_root_uri = content_url( $theme_root ); + else + $theme_root_uri = content_url( 'themes' ); + } else { + $theme_root_uri = content_url( 'themes' ); + } + + return apply_filters( 'theme_root_uri', $theme_root_uri, get_option('siteurl'), $stylesheet_or_template ); +} + +/** + * Get the raw theme root relative to the content directory with no filters applied. + * + * @since 3.1.0 + * + * @param string $stylesheet_or_template The stylesheet or template name of the theme + * @return string Theme root + */ +function get_raw_theme_root( $stylesheet_or_template, $no_cache = false ) { + global $wp_theme_directories; + + if ( count($wp_theme_directories) <= 1 ) + return '/themes'; + + $theme_root = false; + + // If requesting the root for the current theme, consult options to avoid calling get_theme_roots() + if ( !$no_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; } /** - * Retrieve path to file without the use of extension. + * Retrieve path to a template * - * Used to quickly retrieve the path of file without including the file - * extension. It will also check the parent template, if the file exists, with - * the use of {@link locate_template()}. Allows for more generic file location + * Used to quickly retrieve the path of a template without including the file + * extension. It will also check the parent theme, if the file exists, with + * the use of {@link locate_template()}. Allows for more generic template location * without the use of the other get_*_template() functions. * - * Can be used with include() or require() to retrieve path. - * - * if( '' != get_query_template( '404' ) ) - * include( get_query_template( '404' ) ); - * - * or the same can be accomplished with - * - * if( '' != get_404_template() ) - * include( get_404_template() ); - * - * * @since 1.5.0 * * @param string $type Filename without extension. + * @param array $templates An optional list of template candidates * @return string Full path to file. */ -function get_query_template($type) { +function get_query_template( $type, $templates = array() ) { $type = preg_replace( '|[^a-z0-9-]+|', '', $type ); - return apply_filters("{$type}_template", locate_template(array("{$type}.php"))); + + if ( empty( $templates ) ) + $templates = array("{$type}.php"); + + return apply_filters( "{$type}_template", locate_template( $templates ) ); +} + +/** + * Retrieve path of index template in current or parent template. + * + * @since 3.0.0 + * + * @return string + */ +function get_index_template() { + return get_query_template('index'); } /** @@ -552,7 +778,15 @@ function get_404_template() { * @return string */ function get_archive_template() { - return get_query_template('archive'); + $post_type = get_query_var( 'post_type' ); + + $templates = array(); + + if ( $post_type ) + $templates[] = "archive-{$post_type}.php"; + $templates[] = 'archive.php'; + + return get_query_template( 'archive', $templates ); } /** @@ -563,15 +797,23 @@ function get_archive_template() { * @return string */ function get_author_template() { - return get_query_template('author'); + $author = get_queried_object(); + + $templates = array(); + + $templates[] = "author-{$author->user_nicename}.php"; + $templates[] = "author-{$author->ID}.php"; + $templates[] = 'author.php'; + + return get_query_template( 'author', $templates ); } /** * Retrieve path of category template in current or parent template. * - * Works by retrieving the current category ID, for example 'category-1.php' and - * will fallback to category.php template, if the ID category file doesn't - * exist. + * Works by first retrieving the current slug for example 'category-default.php' and then + * trying category ID, for example 'category-1.php' and will finally fallback to category.php + * template, if those files don't exist. * * @since 1.5.0 * @uses apply_filters() Calls 'category_template' on file path of category template. @@ -579,15 +821,23 @@ function get_author_template() { * @return string */ function get_category_template() { - $template = locate_template(array("category-" . absint( get_query_var('cat') ) . '.php', 'category.php')); - return apply_filters('category_template', $template); + $category = get_queried_object(); + + $templates = array(); + + $templates[] = "category-{$category->slug}.php"; + $templates[] = "category-{$category->term_id}.php"; + $templates[] = "category.php"; + + return get_query_template( 'category', $templates ); } /** * Retrieve path of tag template in current or parent template. * - * Works by retrieving the current tag name, for example 'tag-wordpress.php' and will - * fallback to tag.php template, if the name tag file doesn't exist. + * Works by first retrieving the current tag name, for example 'tag-wordpress.php' and then + * trying tag ID, for example 'tag-1.php' and will finally fallback to tag.php + * template, if those files don't exist. * * @since 2.3.0 * @uses apply_filters() Calls 'tag_template' on file path of tag template. @@ -595,8 +845,15 @@ function get_category_template() { * @return string */ function get_tag_template() { - $template = locate_template(array("tag-" . get_query_var('tag') . '.php', 'tag.php')); - return apply_filters('tag_template', $template); + $tag = get_queried_object(); + + $templates = array(); + + $templates[] = "tag-{$tag->slug}.php"; + $templates[] = "tag-{$tag->term_id}.php"; + $templates[] = "tag.php"; + + return get_query_template( 'tag', $templates ); } /** @@ -611,25 +868,22 @@ function get_tag_template() { * template is used. If none of the files exist, then it will fall back on to * index.php. * - * @since unknown (2.6.0 most likely) + * @since 2.5.0 * @uses apply_filters() Calls 'taxonomy_template' filter on found path. * * @return string */ function get_taxonomy_template() { - $taxonomy = get_query_var('taxonomy'); - $term = get_query_var('term'); + $term = get_queried_object(); + $taxonomy = $term->taxonomy; $templates = array(); - if ( $taxonomy && $term ) - $templates[] = "taxonomy-$taxonomy-$term.php"; - if ( $taxonomy ) - $templates[] = "taxonomy-$taxonomy.php"; + $templates[] = "taxonomy-$taxonomy-{$term->slug}.php"; + $templates[] = "taxonomy-$taxonomy.php"; $templates[] = "taxonomy.php"; - $template = locate_template($templates); - return apply_filters('taxonomy_template', $template); + return get_query_template( 'taxonomy', $templates ); } /** @@ -646,6 +900,8 @@ function get_date_template() { /** * Retrieve path of home template in current or parent template. * + * This is the template used for the page containing the blog posts + * * Attempts to locate 'home.php' first before falling back to 'index.php'. * * @since 1.5.0 @@ -654,26 +910,48 @@ function get_date_template() { * @return string */ function get_home_template() { - $template = locate_template(array('home.php', 'index.php')); - return apply_filters('home_template', $template); + $templates = array( 'home.php', 'index.php' ); + + return get_query_template( 'home', $templates ); +} + +/** + * Retrieve path of front-page template in current or parent template. + * + * Looks for 'front-page.php'. + * + * @since 3.0.0 + * @uses apply_filters() Calls 'front_page_template' on file path of template. + * + * @return string + */ +function get_front_page_template() { + $templates = array('front-page.php'); + + return get_query_template( 'front_page', $templates ); } /** * Retrieve path of page template in current or parent template. * - * First attempt is to look for the file in the '_wp_page_template' page meta - * data. The second attempt, if the first has a file and is not empty, is to - * look for 'page.php'. + * Will first look for the specifically assigned page template + * The will search for 'page-{slug}.php' followed by 'page-id.php' + * and finally 'page.php' * * @since 1.5.0 * * @return string */ function get_page_template() { - global $wp_query; - - $id = (int) $wp_query->post->ID; + $id = get_queried_object_id(); $template = get_post_meta($id, '_wp_page_template', true); + $pagename = get_query_var('pagename'); + + if ( !$pagename && $id > 0 ) { + // If a static page is set as the front page, $pagename will not be set. Retrieve it from the queried object + $post = get_queried_object(); + $pagename = $post->post_name; + } if ( 'default' == $template ) $template = ''; @@ -681,10 +959,13 @@ function get_page_template() { $templates = array(); if ( !empty($template) && !validate_file($template) ) $templates[] = $template; - + if ( $pagename ) + $templates[] = "page-$pagename.php"; + if ( $id ) + $templates[] = "page-$id.php"; $templates[] = "page.php"; - return apply_filters('page_template', locate_template($templates)); + return get_query_template( 'page', $templates ); } /** @@ -717,7 +998,14 @@ function get_search_template() { * @return string */ function get_single_template() { - return get_query_template('single'); + $object = get_queried_object(); + + $templates = array(); + + $templates[] = "single-{$object->post_type}.php"; + $templates[] = "single.php"; + + return get_query_template( 'single', $templates ); } /** @@ -752,9 +1040,7 @@ function get_attachment_template() { * Retrieve path of comment popup template in current or parent template. * * Checks for comment popup template in current template, if it exists or in the - * parent template. If it doesn't exist, then it retrieves the comment-popup.php - * file from the default theme. The default theme must then exist for it to - * work. + * parent template. * * @since 1.5.0 * @uses apply_filters() Calls 'comments_popup_template' filter on path. @@ -762,11 +1048,13 @@ function get_attachment_template() { * @return string */ function get_comments_popup_template() { - $template = locate_template(array("comments-popup.php")); + $template = get_query_template( 'comments_popup', array( 'comments-popup.php' ) ); + + // Backward compat code will be removed in a future release if ('' == $template) - $template = get_theme_root() . '/default/comments-popup.php'; + $template = ABSPATH . WPINC . '/theme-compat/comments-popup.php'; - return apply_filters('comments_popup_template', $template); + return $template; } /** @@ -777,16 +1065,16 @@ function get_comments_popup_template() { * * @since 2.7.0 * - * @param array $template_names Array of template files to search for in priority order. + * @param string|array $template_names Template file(s) to search for, in order. * @param bool $load If true the template file will be loaded if it is found. + * @param bool $require_once Whether to require_once or require. Default true. Has no effect if $load is false. * @return string The template filename if one is located. */ -function locate_template($template_names, $load = false) { - if (!is_array($template_names)) - return ''; - +function locate_template($template_names, $load = false, $require_once = true ) { $located = ''; - foreach($template_names as $template_name) { + foreach ( (array) $template_names as $template_name ) { + if ( !$template_name ) + continue; if ( file_exists(STYLESHEETPATH . '/' . $template_name)) { $located = STYLESHEETPATH . '/' . $template_name; break; @@ -796,14 +1084,14 @@ function locate_template($template_names, $load = false) { } } - if ($load && '' != $located) - load_template($located); + if ( $load && '' != $located ) + load_template( $located, $require_once ); return $located; } /** - * Require once the template file with WordPress environment. + * Require the template file with WordPress environment. * * The globals are set up for the template file to ensure that the WordPress * environment is available from within the function. The query variables are @@ -812,14 +1100,18 @@ function locate_template($template_names, $load = false) { * @since 1.5.0 * * @param string $_template_file Path to template file. + * @param bool $require_once Whether to require_once or require. Default true. */ -function load_template($_template_file) { +function load_template( $_template_file, $require_once = true ) { global $posts, $post, $wp_did_header, $wp_did_template_redirect, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID; - if ( is_array($wp_query->query_vars) ) - extract($wp_query->query_vars, EXTR_SKIP); + if ( is_array( $wp_query->query_vars ) ) + extract( $wp_query->query_vars, EXTR_SKIP ); - require_once($_template_file); + if ( $require_once ) + require_once( $_template_file ); + else + require( $_template_file ); } /** @@ -840,7 +1132,7 @@ function locale_stylesheet() { * Will only preform task if the user has permissions and template and preview * query variables exist. * - * @since 2.5.0 + * @since 2.6.0 */ function preview_theme() { if ( ! (isset($_GET['template']) && isset($_GET['preview'])) ) @@ -849,28 +1141,59 @@ function preview_theme() { if ( !current_user_can( 'switch_themes' ) ) return; - $_GET['template'] = preg_replace('|[^a-z0-9_.-/]|i', '', $_GET['template']); + // Admin Thickbox requests + if ( isset( $_GET['preview_iframe'] ) ) + show_admin_bar( false ); + + $_GET['template'] = preg_replace('|[^a-z0-9_./-]|i', '', $_GET['template']); if ( validate_file($_GET['template']) ) return; - add_filter('template', create_function('', "return '{$_GET['template']}';") ); + add_filter( 'template', '_preview_theme_template_filter' ); if ( isset($_GET['stylesheet']) ) { - $_GET['stylesheet'] = preg_replace('|[^a-z0-9_.-/]|i', '', $_GET['stylesheet']); + $_GET['stylesheet'] = preg_replace('|[^a-z0-9_./-]|i', '', $_GET['stylesheet']); if ( validate_file($_GET['stylesheet']) ) return; - add_filter('stylesheet', create_function('', "return '{$_GET['stylesheet']}';") ); + add_filter( 'stylesheet', '_preview_theme_stylesheet_filter' ); } + // Prevent theme mods to current theme being used on theme being previewed + add_filter( 'pre_option_mods_' . get_current_theme(), '__return_empty_array' ); + ob_start( 'preview_theme_ob_filter' ); } add_action('setup_theme', 'preview_theme'); +/** + * Private function to modify the current template when previewing a theme + * + * @since 2.9.0 + * @access private + * + * @return string + */ +function _preview_theme_template_filter() { + return isset($_GET['template']) ? $_GET['template'] : ''; +} + +/** + * Private function to modify the current stylesheet when previewing a theme + * + * @since 2.9.0 + * @access private + * + * @return string + */ +function _preview_theme_stylesheet_filter() { + return isset($_GET['stylesheet']) ? $_GET['stylesheet'] : ''; +} + /** * Callback function for ob_start() to capture all links in the theme. * - * @since unknown + * @since 2.6.0 * @access private * * @param string $content @@ -885,7 +1208,7 @@ function preview_theme_ob_filter( $content ) { * * Callback function for preg_replace_callback() to accept and filter matches. * - * @since unknown + * @since 2.6.0 * @access private * * @param array $matches @@ -897,7 +1220,7 @@ function preview_theme_ob_filter_callback( $matches ) { if ( ( false !== strpos($matches[3], '/wp-admin/') ) || - ( false !== strpos($matches[3], '://') && 0 !== strpos($matches[3], get_option('home')) ) + ( false !== strpos( $matches[3], '://' ) && 0 !== strpos( $matches[3], home_url() ) ) || ( false !== strpos($matches[3], '/feed/') ) || @@ -908,36 +1231,46 @@ function preview_theme_ob_filter_callback( $matches ) { $link = add_query_arg( array('preview' => 1, 'template' => $_GET['template'], 'stylesheet' => @$_GET['stylesheet'] ), $matches[3] ); if ( 0 === strpos($link, 'preview=1') ) $link = "?$link"; - return $matches[1] . attribute_escape( $link ) . $matches[4]; + return $matches[1] . esc_attr( $link ) . $matches[4]; } /** * Switches current theme to new template and stylesheet names. * - * @since unknown + * @since 2.5.0 * @uses do_action() Calls 'switch_theme' action on updated theme display name. * * @param string $template Template name * @param string $stylesheet Stylesheet name. */ function switch_theme($template, $stylesheet) { + global $wp_theme_directories; + 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)); + } delete_option('current_theme'); $theme = get_current_theme(); + if ( is_admin() && false === get_option( "theme_mods_$stylesheet" ) ) { + $default_theme_mods = (array) get_option( "mods_$theme" ); + add_option( "theme_mods_$stylesheet", $default_theme_mods ); + } do_action('switch_theme', $theme); } /** * Checks that current theme files 'index.php' and 'style.css' exists. * - * Does not check the 'default' theme. The 'default' theme should always exist - * or should have another theme renamed to that template name and directory - * path. Will switch theme to default if current theme does not validate. + * Does not check the default theme, which is the fallback and should always exist. + * Will switch theme to the fallback theme if current theme does not validate. * You can use the 'validate_current_theme' filter to return FALSE to * disable this functionality. * * @since 1.5.0 + * @see WP_DEFAULT_THEME * * @return bool */ @@ -946,19 +1279,44 @@ function validate_current_theme() { if ( defined('WP_INSTALLING') || !apply_filters( 'validate_current_theme', true ) ) return true; - if ( get_template() != 'default' && !file_exists(get_template_directory() . '/index.php') ) { - switch_theme('default', 'default'); + if ( get_template() != WP_DEFAULT_THEME && !file_exists(get_template_directory() . '/index.php') ) { + switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME ); return false; } - if ( get_stylesheet() != 'default' && !file_exists(get_template_directory() . '/style.css') ) { - switch_theme('default', 'default'); + if ( get_stylesheet() != WP_DEFAULT_THEME && !file_exists(get_template_directory() . '/style.css') ) { + switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME ); + return false; + } + + if ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) { + switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME ); return false; } return true; } +/** + * Retrieve all theme modifications. + * + * @since 3.1.0 + * + * @return array Theme modifications. + */ +function get_theme_mods() { + $theme_slug = get_option( 'stylesheet' ); + if ( false === ( $mods = get_option( "theme_mods_$theme_slug" ) ) ) { + $theme_name = get_current_theme(); + $mods = get_option( "mods_$theme_name" ); // Deprecated location. + if ( is_admin() && false !== $mods ) { + update_option( "theme_mods_$theme_slug", $mods ); + delete_option( "mods_$theme_name" ); + } + } + return $mods; +} + /** * Retrieve theme modification value for the current theme. * @@ -974,15 +1332,13 @@ function validate_current_theme() { * @param bool|string $default * @return string */ -function get_theme_mod($name, $default = false) { - $theme = get_current_theme(); - - $mods = get_option("mods_$theme"); +function get_theme_mod( $name, $default = false ) { + $mods = get_theme_mods(); - if ( isset($mods[$name]) ) - return apply_filters( "theme_mod_$name", $mods[$name] ); + if ( isset( $mods[ $name ] ) ) + return apply_filters( "theme_mod_$name", $mods[ $name ] ); - return apply_filters( "theme_mod_$name", sprintf($default, get_template_directory_uri(), get_stylesheet_directory_uri()) ); + return apply_filters( "theme_mod_$name", sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() ) ); } /** @@ -993,15 +1349,13 @@ function get_theme_mod($name, $default = false) { * @param string $name Theme modification name. * @param string $value theme modification value. */ -function set_theme_mod($name, $value) { - $theme = get_current_theme(); +function set_theme_mod( $name, $value ) { + $mods = get_theme_mods(); - $mods = get_option("mods_$theme"); + $mods[ $name ] = $value; - $mods[$name] = $value; - - update_option("mods_$theme", $mods); - wp_cache_delete("mods_$theme", 'options'); + $theme = get_option( 'stylesheet' ); + update_option( "theme_mods_$theme", $mods ); } /** @@ -1016,20 +1370,18 @@ function set_theme_mod($name, $value) { * @return null */ function remove_theme_mod( $name ) { - $theme = get_current_theme(); + $mods = get_theme_mods(); - $mods = get_option("mods_$theme"); - - if ( !isset($mods[$name]) ) + if ( ! isset( $mods[ $name ] ) ) return; - unset($mods[$name]); + unset( $mods[ $name ] ); - if ( empty($mods) ) + if ( empty( $mods ) ) return remove_theme_mods(); - update_option("mods_$theme", $mods); - wp_cache_delete("mods_$theme", 'options'); + $theme = get_option( 'stylesheet' ); + update_option( "theme_mods_$theme", $mods ); } /** @@ -1038,9 +1390,8 @@ function remove_theme_mod( $name ) { * @since 2.1.0 */ function remove_theme_mods() { - $theme = get_current_theme(); - - delete_option("mods_$theme"); + delete_option( 'theme_mods_' . get_option( 'stylesheet' ) ); + delete_option( 'mods_' . get_current_theme() ); } /** @@ -1052,7 +1403,9 @@ function remove_theme_mods() { * @return string */ function get_header_textcolor() { - return get_theme_mod('header_textcolor', HEADER_TEXTCOLOR); + $default = defined('HEADER_TEXTCOLOR') ? HEADER_TEXTCOLOR : ''; + + return get_theme_mod('header_textcolor', $default); } /** @@ -1073,7 +1426,16 @@ function header_textcolor() { * @return string */ function get_header_image() { - return get_theme_mod('header_image', HEADER_IMAGE); + $default = defined( 'HEADER_IMAGE' ) ? HEADER_IMAGE : ''; + + $url = get_theme_mod( 'header_image', $default ); + + if ( is_ssl() ) + $url = str_replace( 'http://', 'https://', $url ); + else + $url = str_replace( 'https://', 'http://', $url ); + + return $url; } /** @@ -1097,17 +1459,424 @@ function header_image() { * @uses Custom_Image_Header Sets up for $admin_header_callback for administration panel display. * * @param callback $header_callback Call on 'wp_head' action. - * @param callback $admin_header_callback Call on administration panels. + * @param callback $admin_header_callback Call on custom header administration screen. + * @param callback $admin_image_div_callback Output a custom header image div on the custom header administration screen. Optional. */ -function add_custom_image_header($header_callback, $admin_header_callback) { - if ( ! empty($header_callback) ) +function add_custom_image_header( $header_callback, $admin_header_callback, $admin_image_div_callback = '' ) { + if ( ! empty( $header_callback ) ) add_action('wp_head', $header_callback); + add_theme_support( 'custom-header', array( 'callback' => $header_callback ) ); + add_theme_support( 'custom-header-uploads' ); + + if ( ! is_admin() ) + return; + + global $custom_image_header; + + require_once( ABSPATH . 'wp-admin/custom-header.php' ); + $custom_image_header = new Custom_Image_Header( $admin_header_callback, $admin_image_div_callback ); + add_action( 'admin_menu', array( &$custom_image_header, 'init' ) ); +} + +/** + * Remove image header support. + * + * @since 3.1.0 + * @see add_custom_image_header() + * + * @return bool Whether support was removed. + */ +function remove_custom_image_header() { + if ( ! current_theme_supports( 'custom-header' ) ) + return false; + + $callback = get_theme_support( 'custom-header' ); + remove_action( 'wp_head', $callback[0]['callback'] ); + _remove_theme_support( 'custom-header' ); + remove_theme_support( 'custom-header-uploads' ); + + if ( is_admin() ) { + remove_action( 'admin_menu', array( &$GLOBALS['custom_image_header'], 'init' ) ); + unset( $GLOBALS['custom_image_header'] ); + } + + return true; +} + +/** + * Register a selection of default headers to be displayed by the custom header admin UI. + * + * @since 3.0.0 + * + * @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 ); +} + +/** + * Unregister default headers. + * + * This function must be called after register_default_headers() has already added the + * header you want to remove. + * + * @see register_default_headers() + * @since 3.0.0 + * + * @param string|array $header The header string id (key of array) to remove, or an array thereof. + * @return True on success, false on failure. + */ +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; + } +} + +/** + * Retrieve background image for custom background. + * + * @since 3.0.0 + * + * @return string + */ +function get_background_image() { + $default = defined('BACKGROUND_IMAGE') ? BACKGROUND_IMAGE : ''; + + return get_theme_mod('background_image', $default); +} + +/** + * Display background image path. + * + * @since 3.0.0 + */ +function background_image() { + echo get_background_image(); +} + +/** + * Retrieve value for custom background color. + * + * @since 3.0.0 + * @uses BACKGROUND_COLOR + * + * @return string + */ +function get_background_color() { + $default = defined('BACKGROUND_COLOR') ? BACKGROUND_COLOR : ''; + + return get_theme_mod('background_color', $default); +} + +/** + * Display background color value. + * + * @since 3.0.0 + */ +function background_color() { + echo get_background_color(); +} + +/** + * Add callbacks for background image display. + * + * The parameter $header_callback callback will be required to display the + * content for the 'wp_head' action. The parameter $admin_header_callback + * callback will be added to Custom_Background class and that will be added + * to the 'admin_menu' action. + * + * @since 3.0.0 + * @uses Custom_Background Sets up for $admin_header_callback for administration panel display. + * + * @param callback $header_callback Call on 'wp_head' action. + * @param callback $admin_header_callback Call on custom background administration screen. + * @param callback $admin_image_div_callback Output a custom background image div on the custom background administration screen. Optional. + */ +function add_custom_background( $header_callback = '', $admin_header_callback = '', $admin_image_div_callback = '' ) { + if ( isset( $GLOBALS['custom_background'] ) ) + return; + + if ( empty( $header_callback ) ) + $header_callback = '_custom_background_cb'; + + add_action( 'wp_head', $header_callback ); + + add_theme_support( 'custom-background', array( 'callback' => $header_callback ) ); + if ( ! is_admin() ) return; - require_once(ABSPATH . 'wp-admin/custom-header.php'); - $GLOBALS['custom_image_header'] =& new Custom_Image_Header($admin_header_callback); - add_action('admin_menu', array(&$GLOBALS['custom_image_header'], 'init')); + require_once( ABSPATH . 'wp-admin/custom-background.php' ); + $GLOBALS['custom_background'] =& new Custom_Background( $admin_header_callback, $admin_image_div_callback ); + add_action( 'admin_menu', array( &$GLOBALS['custom_background'], 'init' ) ); } +/** + * Remove custom background support. + * + * @since 3.1.0 + * @see add_custom_background() + * + * @return bool Whether support was removed. + */ +function remove_custom_background() { + if ( ! current_theme_supports( 'custom-background' ) ) + return false; + + $callback = get_theme_support( 'custom-background' ); + remove_action( 'wp_head', $callback[0]['callback'] ); + _remove_theme_support( 'custom-background' ); + + if ( is_admin() ) { + remove_action( 'admin_menu', array( &$GLOBALS['custom_background'], 'init' ) ); + unset( $GLOBALS['custom_background'] ); + } + + return true; +} + +/** + * Default custom background callback. + * + * @since 3.0.0 + * @see add_custom_background() + * @access protected + */ +function _custom_background_cb() { + $background = get_background_image(); + $color = get_background_color(); + if ( ! $background && ! $color ) + return; + + $style = $color ? "background-color: #$color;" : ''; + + if ( $background ) { + $image = " background-image: url('$background');"; + + $repeat = get_theme_mod( 'background_repeat', 'repeat' ); + if ( ! in_array( $repeat, array( 'no-repeat', 'repeat-x', 'repeat-y', 'repeat' ) ) ) + $repeat = 'repeat'; + $repeat = " background-repeat: $repeat;"; + + $position = get_theme_mod( 'background_position_x', 'left' ); + if ( ! in_array( $position, array( 'center', 'right', 'left' ) ) ) + $position = 'left'; + $position = " background-position: top $position;"; + + $attachment = get_theme_mod( 'background_attachment', 'scroll' ); + if ( ! in_array( $attachment, array( 'fixed', 'scroll' ) ) ) + $attachment = 'scroll'; + $attachment = " background-attachment: $attachment;"; + + $style .= $image . $repeat . $position . $attachment; + } +?> + +