--- a/web/wp-includes/theme.php Thu Sep 16 15:45:36 2010 +0000
+++ b/web/wp-includes/theme.php Mon Nov 19 18:26:13 2012 +0100
@@ -3,8 +3,119 @@
* Theme, template, and stylesheet functions.
*
* @package WordPress
- * @subpackage Template
+ * @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
+ *
+ * @param array $args The search arguments. Optional.
+ * - errors mixed True to return themes with errors, false to return themes without errors, null
+ * to return all themes. Defaults to false.
+ * - allowed mixed (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. Defaults to null.
+ * - blog_id int (Multisite) The blog ID used to calculate which themes are allowed. Defaults to 0,
+ * synonymous for the current blog.
+ * @return 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 ( count( $wp_theme_directories ) > 1 ) {
+ // Make sure the current theme wins out, in case search_theme_directories() picks the wrong
+ // one in the case of a conflict. (Normally, last registered theme root wins.)
+ $current_theme = get_stylesheet();
+ if ( isset( $theme_directories[ $current_theme ] ) ) {
+ $root_of_current_theme = get_raw_theme_root( $current_theme );
+ if ( ! in_array( $root_of_current_theme, $wp_theme_directories ) )
+ $root_of_current_theme = WP_CONTENT_DIR . $root_of_current_theme;
+ $theme_directories[ $current_theme ]['theme_root'] = $root_of_current_theme;
+ }
+ }
+
+ if ( empty( $theme_directories ) )
+ return array();
+
+ if ( is_multisite() && null !== $args['allowed'] ) {
+ $allowed = $args['allowed'];
+ if ( 'network' === $allowed )
+ $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed_on_network() );
+ elseif ( 'site' === $allowed )
+ $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed_on_site( $args['blog_id'] ) );
+ elseif ( $allowed )
+ $theme_directories = array_intersect_key( $theme_directories, WP_Theme::get_allowed( $args['blog_id'] ) );
+ else
+ $theme_directories = array_diff_key( $theme_directories, WP_Theme::get_allowed( $args['blog_id'] ) );
+ }
+
+ $themes = array();
+ static $_themes = array();
+
+ foreach ( $theme_directories as $theme => $theme_root ) {
+ if ( isset( $_themes[ $theme_root['theme_root'] . '/' . $theme ] ) )
+ $themes[ $theme ] = $_themes[ $theme_root['theme_root'] . '/' . $theme ];
+ else
+ $themes[ $theme ] = $_themes[ $theme_root['theme_root'] . '/' . $theme ] = new WP_Theme( $theme, $theme_root['theme_root'] );
+ }
+
+ if ( null !== $args['errors'] ) {
+ foreach ( $themes as $theme => $wp_theme ) {
+ if ( $wp_theme->errors() != $args['errors'] )
+ unset( $themes[ $theme ] );
+ }
+ }
+
+ return $themes;
+}
+
+/**
+ * Gets a WP_Theme object for a theme.
+ *
+ * @since 3.4.0
+ *
+ * @param string $stylesheet Directory name for the theme. Optional. Defaults to current theme.
+ * @param string $theme_root Absolute path of the theme root to look in. Optional. If not specified, get_raw_theme_root()
+ * is used to calculate the theme root for the $stylesheet provided (or current theme).
+ * @return WP_Theme Theme object. Be sure to check the object's exists() method if you need to confirm the theme's existence.
+ */
+function wp_get_theme( $stylesheet = null, $theme_root = null ) {
+ global $wp_theme_directories;
+
+ if ( empty( $stylesheet ) )
+ $stylesheet = get_stylesheet();
+
+ if ( empty( $theme_root ) ) {
+ $theme_root = get_raw_theme_root( $stylesheet );
+ if ( false === $theme_root )
+ $theme_root = WP_CONTENT_DIR . '/themes';
+ elseif ( ! in_array( $theme_root, (array) $wp_theme_directories ) )
+ $theme_root = WP_CONTENT_DIR . $theme_root;
+ }
+
+ return new WP_Theme( $stylesheet, $theme_root );
+}
+
+/**
+ * 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.
@@ -68,7 +179,7 @@
*/
function get_stylesheet_uri() {
$stylesheet_dir_uri = get_stylesheet_directory_uri();
- $stylesheet_uri = $stylesheet_dir_uri . "/style.css";
+ $stylesheet_uri = $stylesheet_dir_uri . '/style.css';
return apply_filters('stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
}
@@ -150,351 +261,27 @@
}
/**
- * Retrieve theme data from parsed theme file.
- *
- * The description will have the tags filtered with the following HTML elements
- * whitelisted. The <b>'a'</b> element with the <em>href</em> and <em>title</em>
- * attributes. The <b>abbr</b> element with the <em>title</em> attribute. The
- * <b>acronym<b> element with the <em>title</em> attribute allowed. The
- * <b>code</b>, <b>em</b>, and <b>strong</b> elements also allowed.
- *
- * The style.css file must contain theme name, theme URI, and description. The
- * data can also contain author URI, author, template (parent template),
- * version, status, and finally tags. Some of these are not used by WordPress
- * administration panels, but are used by theme directory web sites which list
- * the theme.
- *
- * @since 1.5.0
- *
- * @param string $theme_file Theme file path.
- * @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()
- ),
- 'abbr' => array(
- 'title' => array()
- ),
- 'acronym' => array(
- 'title' => array()
- ),
- 'code' => array(),
- 'em' => array(),
- 'strong' => array()
- );
-
- $theme_data = get_file_data( $theme_file, $default_headers, 'theme' );
-
- $theme_data['Name'] = $theme_data['Title'] = wp_kses( $theme_data['Name'], $themes_allowed_tags );
-
- $theme_data['URI'] = esc_url( $theme_data['URI'] );
-
- $theme_data['Description'] = wptexturize( wp_kses( $theme_data['Description'], $themes_allowed_tags ) );
-
- $theme_data['AuthorURI'] = esc_url( $theme_data['AuthorURI'] );
-
- $theme_data['Template'] = wp_kses( $theme_data['Template'], $themes_allowed_tags );
-
- $theme_data['Version'] = wp_kses( $theme_data['Version'], $themes_allowed_tags );
-
- if ( $theme_data['Status'] == '' )
- $theme_data['Status'] = 'publish';
- else
- $theme_data['Status'] = wp_kses( $theme_data['Status'], $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 ( $theme_data['Author'] == '' ) {
- $theme_data['Author'] = __('Anonymous');
- } else {
- if ( empty( $theme_data['AuthorURI'] ) ) {
- $theme_data['Author'] = wp_kses( $theme_data['Author'], $themes_allowed_tags );
- } else {
- $theme_data['Author'] = sprintf( '<a href="%1$s" title="%2$s">%3$s</a>', $theme_data['AuthorURI'], __( 'Visit author homepage' ), wp_kses( $theme_data['Author'], $themes_allowed_tags ) );
- }
- }
-
- return $theme_data;
-}
-
-/**
- * Retrieve list of themes with theme data in theme directory.
- *
- * The theme is broken, if it doesn't have a parent theme and is missing either
- * style.css and, or index.php. If the theme has a parent theme then it is
- * broken, if it is missing style.css; index.php is optional. The broken theme
- * list is saved in the {@link $wp_broken_themes} global, which is displayed on
- * the theme list in the administration panels.
- *
- * @since 1.5.0
- * @global array $wp_broken_themes Stores the broken themes.
- * @global array $wp_themes Stores the working themes.
- *
- * @return array Theme list with theme data.
- */
-function get_themes() {
- global $wp_themes, $wp_broken_themes;
-
- if ( isset($wp_themes) )
- return $wp_themes;
-
- /* Register the default root as a theme directory */
- register_theme_directory( get_theme_root() );
-
- if ( !$theme_files = search_theme_directories() )
- return false;
-
- asort( $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;
- }
-
- $theme_data = get_theme_data("$theme_root/$theme_file");
-
- $name = $theme_data['Name'];
- $title = $theme_data['Title'];
- $description = wptexturize($theme_data['Description']);
- $version = $theme_data['Version'];
- $author = $theme_data['Author'];
- $template = $theme_data['Template'];
- $stylesheet = dirname($theme_file);
-
- $screenshot = false;
- foreach ( array('png', 'gif', 'jpg', 'jpeg') as $ext ) {
- if (file_exists("$theme_root/$stylesheet/screenshot.$ext")) {
- $screenshot = "screenshot.$ext";
- break;
- }
- }
-
- if ( empty($name) ) {
- $name = dirname($theme_file);
- $title = $name;
- }
-
- if ( empty($template) ) {
- if ( file_exists("$theme_root/$stylesheet/index.php") )
- $template = $stylesheet;
- else
- continue;
- }
-
- $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/$template";
- } else {
- /**
- * The parent theme doesn't exist in the current theme's folder or sub folder
- * so lets use the theme root for the parent template.
- */
- if ( isset($theme_files[$template]) && file_exists( $theme_files[$template]['theme_root'] . "/$template/index.php" ) ) {
- $template_directory = $theme_files[$template]['theme_root'] . "/$template";
- } else {
- $wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.'));
- continue;
- }
-
- }
- } else {
- $template_directory = trim( $theme_root . '/' . $template );
- }
-
- $stylesheet_files = array();
- $template_files = array();
-
- $stylesheet_dir = @ dir("$theme_root/$stylesheet");
- if ( $stylesheet_dir ) {
- while ( ($file = $stylesheet_dir->read()) !== false ) {
- if ( !preg_match('|^\.+$|', $file) ) {
- if ( preg_match('|\.css$|', $file) )
- $stylesheet_files[] = "$theme_root/$stylesheet/$file";
- elseif ( preg_match('|\.php$|', $file) )
- $template_files[] = "$theme_root/$stylesheet/$file";
- }
- }
- @ $stylesheet_dir->close();
- }
-
- $template_dir = @ dir("$template_directory");
- if ( $template_dir ) {
- while ( ($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();
- }
-
- //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);
-
- $template_dir = dirname($template_files[0]);
- $stylesheet_dir = dirname($stylesheet_files[0]);
-
- if ( empty($template_dir) )
- $template_dir = '/';
- if ( empty($stylesheet_dir) )
- $stylesheet_dir = '/';
-
- // Check for theme name collision. This occurs if a theme is copied to
- // a new theme directory and the theme header is not updated. Whichever
- // theme is first keeps the name. Subsequent themes get a suffix applied.
- // The Default and Classic themes always trump their pretenders.
- if ( isset($wp_themes[$name]) ) {
- if ( ('WordPress Default' == $name || 'WordPress Classic' == $name) &&
- ('default' == $stylesheet || 'classic' == $stylesheet) ) {
- // If another theme has claimed to be one of our default themes, move
- // them aside.
- $suffix = $wp_themes[$name]['Stylesheet'];
- $new_name = "$name/$suffix";
- $wp_themes[$new_name] = $wp_themes[$name];
- $wp_themes[$new_name]['Name'] = $new_name;
- } else {
- $name = "$name/$stylesheet";
- }
- }
-
- $theme_roots[$stylesheet] = str_replace( WP_CONTENT_DIR, '', $theme_root );
- $wp_themes[$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 Root' => $theme_root, 'Theme Root URI' => str_replace( WP_CONTENT_DIR, content_url(), $theme_root ) );
- }
-
- unset($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 ) {
- $wp_themes[$theme_name]['Parent Theme'] = '';
- if ( $wp_themes[$theme_name]['Stylesheet'] != $wp_themes[$theme_name]['Template'] ) {
- foreach ( (array) $theme_names as $parent_theme_name ) {
- if ( ($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;
- }
- }
- }
- }
-
- return $wp_themes;
-}
-
-/**
* Retrieve theme roots.
*
* @since 2.9.0
*
- * @return array Theme roots
+ * @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 $wp_theme_directories;
+
+ if ( count($wp_theme_directories) <= 1 )
+ 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()
+ search_theme_directories( true ); // Regenerate the transient.
+ $theme_roots = get_site_transient( 'theme_roots' );
}
return $theme_roots;
}
/**
- * Retrieve theme data.
- *
- * @since 1.5.0
- *
- * @param string $theme Theme name.
- * @return array|null Null, if theme name does not exist. Theme data, if exists.
- */
-function get_theme($theme) {
- $themes = get_themes();
-
- if ( array_key_exists($theme, $themes) )
- return $themes[$theme];
-
- return null;
-}
-
-/**
- * Retrieve current theme display name.
- *
- * If the 'current_theme' option has already been set, then it will be returned
- * instead. If it is not set, then each theme will be iterated over until both
- * the current stylesheet and current template name.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_current_theme() {
- if ( $theme = get_option('current_theme') )
- return $theme;
-
- $themes = get_themes();
- $theme_names = array_keys($themes);
- $current_template = get_option('template');
- $current_stylesheet = get_option('stylesheet');
- $current_theme = 'WordPress Default';
-
- if ( $themes ) {
- foreach ( (array) $theme_names as $theme_name ) {
- if ( $themes[$theme_name]['Stylesheet'] == $current_stylesheet &&
- $themes[$theme_name]['Template'] == $current_template ) {
- $current_theme = $themes[$theme_name]['Name'];
- break;
- }
- }
- }
-
- update_option('current_theme', $current_theme);
-
- return $current_theme;
-}
-
-/**
* Register a directory that contains themes.
*
* @since 2.9.0
@@ -502,21 +289,18 @@
* @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) {
+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 ( ! 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 this folder does not exist, return and do not register */
- if ( !file_exists( $registered_directory ) )
- return false;
-
- $wp_theme_directories[] = $registered_directory;
+ $wp_theme_directories[] = $directory;
return true;
}
@@ -526,82 +310,111 @@
*
* @since 2.9.0
*
+ * @param bool $force Optional. Whether to force a new directory scan. Defaults to false.
* @return array Valid themes found
*/
-function search_theme_directories() {
- global $wp_theme_directories, $wp_broken_themes;
+function search_theme_directories( $force = false ) {
+ global $wp_theme_directories;
if ( empty( $wp_theme_directories ) )
return false;
- $theme_files = array();
- $wp_broken_themes = array();
+ static $found_themes;
+ if ( ! $force && isset( $found_themes ) )
+ return $found_themes;
+
+ $found_themes = array();
+
+ $wp_theme_directories = (array) $wp_theme_directories;
+
+ // Set up maybe-relative, maybe-absolute array of theme directories.
+ // We always want to return absolute, but we need to cache relative
+ // use in for 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;
+ }
+
+ if ( $cache_expiration = apply_filters( 'wp_cache_themes_persistently', false, 'search_theme_directories' ) ) {
+ $cached_roots = get_site_transient( 'theme_roots' );
+ if ( is_array( $cached_roots ) ) {
+ foreach ( $cached_roots as $theme_dir => $theme_root ) {
+ // A cached theme root is no longer around, so skip it.
+ if ( ! isset( $relative_theme_roots[ $theme_root ] ) )
+ continue;
+ $found_themes[ $theme_dir ] = array(
+ 'theme_file' => $theme_dir . '/style.css',
+ 'theme_root' => $relative_theme_roots[ $theme_root ], // Convert relative to absolute.
+ );
+ }
+ return $found_themes;
+ }
+ if ( ! is_int( $cache_expiration ) )
+ $cache_expiration = 1800; // half hour
+ } else {
+ $cache_expiration = 1800; // half hour
+ }
/* 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);
+ foreach ( $wp_theme_directories as $theme_root ) {
- if ( !$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($theme_subdir);
- if ( !$found_subdir_themes )
- $wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.'));
+ // Start with directories in the root of the current theme directory.
+ $dirs = @ scandir( $theme_root );
+ if ( ! $dirs )
+ return false;
+ foreach ( $dirs as $dir ) {
+ if ( ! is_dir( $theme_root . '/' . $dir ) || $dir[0] == '.' || $dir == 'CVS' )
+ 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 )
+ return false;
+ foreach ( $sub_dirs as $sub_dir ) {
+ if ( ! is_dir( $theme_root . '/' . $dir . '/' . $sub_dir ) || $dir[0] == '.' || $dir == 'CVS' )
+ continue;
+ if ( ! file_exists( $theme_root . '/' . $dir . '/' . $sub_dir . '/style.css' ) )
+ continue;
+ $found_themes[ $dir . '/' . $sub_dir ] = array(
+ 'theme_file' => $dir . '/' . $sub_dir . '/style.css',
+ 'theme_root' => $theme_root,
+ );
+ $found_theme = true;
}
+ // Never mind the above, it's just a theme missing a style.css.
+ // Return it; WP_Theme will catch the error.
+ if ( ! $found_theme )
+ $found_themes[ $dir ] = array(
+ 'theme_file' => $dir . '/style.css',
+ 'theme_root' => $theme_root,
+ );
}
}
- if ( is_dir( $theme_dir ) )
- @closedir( $theme_dir );
}
- return $theme_files;
+
+ 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 ( $theme_roots != get_site_transient( 'theme_roots' ) )
+ set_site_transient( 'theme_roots', $theme_roots, $cache_expiration );
+
+ return $found_themes;
}
/**
@@ -610,19 +423,19 @@
* Does not have trailing slash.
*
* @since 1.5.0
- * @param $stylesheet_or_template The stylesheet or template name of the theme
* @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( $stylesheet_or_template = false ) {
- if ($stylesheet_or_template) {
- $theme_roots = get_theme_roots();
+ global $wp_theme_directories;
- if ( $theme_roots[$stylesheet_or_template] )
- $theme_root = WP_CONTENT_DIR . $theme_roots[$stylesheet_or_template];
- else
- $theme_root = WP_CONTENT_DIR . '/themes';
+ if ( $stylesheet_or_template && $theme_root = get_raw_theme_root( $stylesheet_or_template ) ) {
+ // Always prepend WP_CONTENT_DIR unless the root currently registered as a theme directory.
+ // This gives relative theme roots the benefit of the doubt when things go haywire.
+ if ( ! in_array( $theme_root, (array) $wp_theme_directories ) )
+ $theme_root = WP_CONTENT_DIR . $theme_root;
} else {
$theme_root = WP_CONTENT_DIR . '/themes';
}
@@ -636,364 +449,72 @@
* Does not have trailing slash.
*
* @since 1.5.0
- * @param $stylesheet_or_template The stylesheet or template name of the theme
*
+ * @param string $stylesheet_or_template Optional. The stylesheet or template name of the theme.
+ * Default is to leverage the main theme root.
+ * @param string $theme_root Optional. The theme root for which calculations will be based, preventing
+ * the need for a get_raw_theme_root() call.
* @return string Themes URI.
*/
-function get_theme_root_uri( $stylesheet_or_template = false ) {
- $theme_roots = get_theme_roots();
+function get_theme_root_uri( $stylesheet_or_template = false, $theme_root = false ) {
+ global $wp_theme_directories;
+
+ if ( $stylesheet_or_template && ! $theme_root )
+ $theme_root = get_raw_theme_root( $stylesheet_or_template );
- if ( $theme_roots[$stylesheet_or_template] )
- $theme_root_uri = content_url( $theme_roots[$stylesheet_or_template] );
- else
+ if ( $stylesheet_or_template && $theme_root ) {
+ if ( in_array( $theme_root, (array) $wp_theme_directories ) ) {
+ // Absolute path. Make an educated guess. YMMV -- but note the filter below.
+ if ( 0 === strpos( $theme_root, WP_CONTENT_DIR ) )
+ $theme_root_uri = content_url( str_replace( WP_CONTENT_DIR, '', $theme_root ) );
+ elseif ( 0 === strpos( $theme_root, ABSPATH ) )
+ $theme_root_uri = site_url( str_replace( ABSPATH, '', $theme_root ) );
+ elseif ( 0 === strpos( $theme_root, WP_PLUGIN_DIR ) || 0 === strpos( $theme_root, WPMU_PLUGIN_DIR ) )
+ $theme_root_uri = plugins_url( basename( $theme_root ), $theme_root );
+ else
+ $theme_root_uri = $theme_root;
+ } else {
+ $theme_root_uri = content_url( $theme_root );
+ }
+ } else {
$theme_root_uri = content_url( 'themes' );
+ }
return apply_filters( 'theme_root_uri', $theme_root_uri, get_option('siteurl'), $stylesheet_or_template );
}
/**
- * Retrieve path to file without the use of extension.
- *
- * 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
- * without the use of the other get_*_template() functions.
- *
- * Can be used with include() or require() to retrieve path.
- * <code>
- * if( '' != get_query_template( '404' ) )
- * include( get_query_template( '404' ) );
- * </code>
- * or the same can be accomplished with
- * <code>
- * if( '' != get_404_template() )
- * include( get_404_template() );
- * </code>
- *
- * @since 1.5.0
- *
- * @param string $type Filename without extension.
- * @return string Full path to file.
- */
-function get_query_template($type) {
- $type = preg_replace( '|[^a-z0-9-]+|', '', $type );
- return apply_filters("{$type}_template", locate_template(array("{$type}.php")));
-}
-
-/**
- * Retrieve path of 404 template in current or parent template.
- *
- * @since 1.5.0
+ * Get the raw theme root relative to the content directory with no filters applied.
*
- * @return string
- */
-function get_404_template() {
- return get_query_template('404');
-}
-
-/**
- * Retrieve path of archive template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_archive_template() {
- return get_query_template('archive');
-}
-
-/**
- * Retrieve path of author template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_author_template() {
- return get_query_template('author');
-}
-
-/**
- * Retrieve path of category template in current or parent template.
- *
- * 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.
+ * @since 3.1.0
*
- * @return string
- */
-function get_category_template() {
- $cat_ID = absint( get_query_var('cat') );
- $category = get_category( $cat_ID );
-
- $templates = array();
-
- if ( !is_wp_error($category) )
- $templates[] = "category-{$category->slug}.php";
-
- $templates[] = "category-$cat_ID.php";
- $templates[] = "category.php";
-
- $template = locate_template($templates);
- return apply_filters('category_template', $template);
-}
-
-/**
- * Retrieve path of tag template in current or parent template.
- *
- * 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.
- *
- * @return string
- */
-function get_tag_template() {
- $tag_id = absint( get_query_var('tag_id') );
- $tag_name = get_query_var('tag');
-
- $templates = array();
-
- if ( $tag_name )
- $templates[] = "tag-$tag_name.php";
- if ( $tag_id )
- $templates[] = "tag-$tag_id.php";
- $templates[] = "tag.php";
-
- $template = locate_template($templates);
- return apply_filters('tag_template', $template);
-}
-
-/**
- * Retrieve path of taxonomy template in current or parent template.
- *
- * Retrieves the taxonomy and term, if term is available. The template is
- * prepended with 'taxonomy-' and followed by both the taxonomy string and
- * the taxonomy string followed by a dash and then followed by the term.
- *
- * The taxonomy and term template is checked and used first, if it exists.
- * Second, just the taxonomy template is checked, and then finally, taxonomy.php
- * 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)
- * @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');
-
- $templates = array();
- if ( $taxonomy && $term )
- $templates[] = "taxonomy-$taxonomy-$term.php";
- if ( $taxonomy )
- $templates[] = "taxonomy-$taxonomy.php";
-
- $templates[] = "taxonomy.php";
-
- $template = locate_template($templates);
- return apply_filters('taxonomy_template', $template);
-}
-
-/**
- * Retrieve path of date template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
+ * @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_date_template() {
- return get_query_template('date');
-}
-
-/**
- * Retrieve path of home template in current or parent template.
- *
- * Attempts to locate 'home.php' first before falling back to 'index.php'.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'home_template' on file path of home template.
- *
- * @return string
- */
-function get_home_template() {
- $template = locate_template(array('home.php', 'index.php'));
- return apply_filters('home_template', $template);
-}
-
-/**
- * Retrieve path of page template in current or parent template.
- *
- * 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;
- $template = get_post_meta($id, '_wp_page_template', true);
- $pagename = get_query_var('pagename');
+function get_raw_theme_root( $stylesheet_or_template, $skip_cache = false ) {
+ global $wp_theme_directories;
- if ( 'default' == $template )
- $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));
-}
-
-/**
- * Retrieve path of paged template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_paged_template() {
- return get_query_template('paged');
-}
-
-/**
- * Retrieve path of search template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_search_template() {
- return get_query_template('search');
-}
+ if ( count($wp_theme_directories) <= 1 )
+ return '/themes';
-/**
- * Retrieve path of single template in current or parent template.
- *
- * @since 1.5.0
- *
- * @return string
- */
-function get_single_template() {
- return get_query_template('single');
-}
-
-/**
- * Retrieve path of attachment template in current or parent template.
- *
- * The attachment path first checks if the first part of the mime type exists.
- * The second check is for the second part of the mime type. The last check is
- * for both types separated by an underscore. If neither are found then the file
- * 'attachment.php' is checked and returned.
- *
- * Some examples for the 'text/plain' mime type are 'text.php', 'plain.php', and
- * finally 'text_plain.php'.
- *
- * @since 2.0.0
- *
- * @return string
- */
-function get_attachment_template() {
- global $posts;
- $type = explode('/', $posts[0]->post_mime_type);
- if ( $template = get_query_template($type[0]) )
- return $template;
- elseif ( $template = get_query_template($type[1]) )
- return $template;
- elseif ( $template = get_query_template("$type[0]_$type[1]") )
- return $template;
- else
- return get_query_template('attachment');
-}
+ $theme_root = false;
-/**
- * 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.
- *
- * @since 1.5.0
- * @uses apply_filters() Calls 'comments_popup_template' filter on path.
- *
- * @return string
- */
-function get_comments_popup_template() {
- $template = locate_template(array("comments-popup.php"));
- if ('' == $template)
- $template = get_theme_root() . '/default/comments-popup.php';
-
- return apply_filters('comments_popup_template', $template);
-}
-
-/**
- * Retrieve the name of the highest priority template file that exists.
- *
- * Searches in the STYLESHEETPATH before TEMPLATEPATH so that themes which
- * inherit from a parent theme can just overload one file.
- *
- * @since 2.7.0
- *
- * @param array $template_names Array of template files to search for in priority order.
- * @param bool $load If true the template file will be loaded if it is found.
- * @return string The template filename if one is located.
- */
-function locate_template($template_names, $load = false) {
- if (!is_array($template_names))
- return '';
-
- $located = '';
- foreach($template_names as $template_name) {
- if ( file_exists(STYLESHEETPATH . '/' . $template_name)) {
- $located = STYLESHEETPATH . '/' . $template_name;
- break;
- } else if ( file_exists(TEMPLATEPATH . '/' . $template_name) ) {
- $located = TEMPLATEPATH . '/' . $template_name;
- break;
- }
+ // 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 )
+ $theme_root = get_option('template_root');
}
- if ($load && '' != $located)
- load_template($located);
-
- return $located;
-}
+ if ( empty($theme_root) ) {
+ $theme_roots = get_theme_roots();
+ if ( !empty($theme_roots[$stylesheet_or_template]) )
+ $theme_root = $theme_roots[$stylesheet_or_template];
+ }
-/**
- * Require once 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
- * also available.
- *
- * @since 1.5.0
- *
- * @param string $_template_file Path to template file.
- */
-function load_template($_template_file) {
- global $posts, $post, $wp_did_header, $wp_did_template_redirect, $wp_query, $wp_rewrite, $wpdb, $wp_version, $wp, $id, $comment, $user_ID;
-
- if ( is_array($wp_query->query_vars) )
- extract($wp_query->query_vars, EXTR_SKIP);
-
- require_once($_template_file);
+ return $theme_root;
}
/**
@@ -1023,6 +544,10 @@
if ( !current_user_can( 'switch_themes' ) )
return;
+ // 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']) )
@@ -1038,7 +563,7 @@
}
// Prevent theme mods to current theme being used on theme being previewed
- add_filter( 'pre_option_mods_' . get_current_theme(), create_function( '', "return array();" ) );
+ add_filter( 'pre_option_theme_mods_' . get_option( 'stylesheet' ), '__return_empty_array' );
ob_start( 'preview_theme_ob_filter' );
}
@@ -1098,7 +623,7 @@
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/') )
||
@@ -1106,7 +631,7 @@
)
return $matches[1] . "#$matches[2] onclick=$matches[2]return false;" . $matches[4];
- $link = add_query_arg( array('preview' => 1, 'template' => $_GET['template'], 'stylesheet' => @$_GET['stylesheet'] ), $matches[3] );
+ $link = add_query_arg( array( 'preview' => 1, 'template' => $_GET['template'], 'stylesheet' => @$_GET['stylesheet'], 'preview_iframe' => 1 ), $matches[3] );
if ( 0 === strpos($link, 'preview=1') )
$link = "?$link";
return $matches[1] . esc_attr( $link ) . $matches[4];
@@ -1115,30 +640,51 @@
/**
* Switches current theme to new template and stylesheet names.
*
- * @since unknown
- * @uses do_action() Calls 'switch_theme' action on updated theme display name.
+ * @since 2.5.0
+ * @uses do_action() Calls 'switch_theme' action, passing the new theme.
*
* @param string $template Template name
* @param string $stylesheet Stylesheet name.
*/
-function switch_theme($template, $stylesheet) {
- update_option('template', $template);
- update_option('stylesheet', $stylesheet);
- delete_option('current_theme');
- $theme = get_current_theme();
- do_action('switch_theme', $theme);
+function switch_theme( $template, $stylesheet ) {
+ global $wp_theme_directories, $sidebars_widgets;
+
+ if ( is_array( $sidebars_widgets ) )
+ set_theme_mod( 'sidebars_widgets', array( 'time' => time(), 'data' => $sidebars_widgets ) );
+
+ $old_theme = wp_get_theme();
+ $new_theme = wp_get_theme( $stylesheet );
+ $new_name = $new_theme->get('Name');
+
+ 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 ) );
+ }
+
+ update_option( 'current_theme', $new_name );
+
+ if ( is_admin() && false === get_option( 'theme_mods_' . $stylesheet ) ) {
+ $default_theme_mods = (array) get_option( 'mods_' . $new_name );
+ add_option( "theme_mods_$stylesheet", $default_theme_mods );
+ }
+
+ update_option( 'theme_switched', $old_theme->get_stylesheet() );
+ do_action( 'switch_theme', $new_name, $new_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.
- * You can use the 'validate_current_theme' filter to return FALSE to
+ * 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
*/
@@ -1147,13 +693,18 @@
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;
}
@@ -1161,6 +712,28 @@
}
/**
+ * 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_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;
+}
+
+/**
* Retrieve theme modification value for the current theme.
*
* If the modification name does not exist, then the $default will be passed
@@ -1175,15 +748,16 @@
* @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()) );
+ if ( is_string( $default ) )
+ $default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() );
+
+ return apply_filters( "theme_mod_$name", $default );
}
/**
@@ -1194,15 +768,13 @@
* @param string $name Theme modification name.
* @param string $value theme modification value.
*/
-function set_theme_mod($name, $value) {
- $theme = get_current_theme();
-
- $mods = get_option("mods_$theme");
+function set_theme_mod( $name, $value ) {
+ $mods = get_theme_mods();
- $mods[$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 );
}
/**
@@ -1217,20 +789,18 @@
* @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 );
}
/**
@@ -1239,21 +809,24 @@
* @since 2.1.0
*/
function remove_theme_mods() {
- $theme = get_current_theme();
+ delete_option( 'theme_mods_' . get_option( 'stylesheet' ) );
- delete_option("mods_$theme");
+ // Old style.
+ $theme_name = get_option( 'current_theme' );
+ if ( false === $theme_name )
+ $theme_name = wp_get_theme()->get('Name');
+ delete_option( 'mods_' . $theme_name );
}
/**
* Retrieve text color for custom header.
*
* @since 2.1.0
- * @uses HEADER_TEXTCOLOR
*
* @return string
*/
function get_header_textcolor() {
- return get_theme_mod('header_textcolor', HEADER_TEXTCOLOR);
+ return get_theme_mod('header_textcolor', get_theme_support( 'custom-header', 'default-text-color' ) );
}
/**
@@ -1266,15 +839,125 @@
}
/**
+ * 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;
+}
+
+/**
* Retrieve header image for custom header.
*
* @since 2.1.0
- * @uses HEADER_IMAGE
*
* @return string
*/
function get_header_image() {
- return get_theme_mod('header_image', 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();
+
+ if ( is_ssl() )
+ $url = str_replace( 'http://', 'https://', $url );
+ else
+ $url = str_replace( 'https://', 'http://', $url );
+
+ return esc_url_raw( $url );
+}
+
+/**
+ * Get random header image data from registered images in theme.
+ *
+ * @since 3.4.0
+ *
+ * @access private
+ *
+ * @return string Path to header image
+ */
+
+function _get_random_header_data() {
+ static $_wp_random_header;
+
+ 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;
+}
+
+/**
+ * Get random header image url from registered images in theme.
+ *
+ * @since 3.2.0
+ *
+ * @return string Path to header image
+ */
+
+function get_random_header_image() {
+ $random_image = _get_random_header_data();
+ if ( empty( $random_image->url ) )
+ return '';
+ return $random_image->url;
+}
+
+/**
+ * Check if random header image is in use.
+ *
+ * Always true if user expressly chooses the option in Appearance > Header.
+ * Also true if theme has multiple header images registered, no specific header image
+ * is chosen, and theme turns on random headers with add_theme_support().
+ *
+ * @since 3.2.0
+ *
+ * @param string $type The random pool to use. any|default|uploaded
+ * @return boolean
+ */
+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;
}
/**
@@ -1287,60 +970,514 @@
}
/**
- * Add callbacks for image header display.
+ * Get the header images uploaded for the current theme.
+ *
+ * @since 3.2.0
+ *
+ * @return array
+ */
+function get_uploaded_header_images() {
+ $header_images = array();
+
+ // @todo caching
+ $headers = get_posts( array( 'post_type' => 'attachment', 'meta_key' => '_wp_attachment_is_custom_header', 'meta_value' => get_option('stylesheet'), 'orderby' => 'none', 'nopaging' => true ) );
+
+ if ( empty( $headers ) )
+ return array();
+
+ foreach ( (array) $headers as $header ) {
+ $url = esc_url_raw( $header->guid );
+ $header_data = wp_get_attachment_metadata( $header->ID );
+ $header_index = basename($url);
+ $header_images[$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]['width'] = $header_data['width'];
+ $header_images[$header_index]['height'] = $header_data['height'];
+ }
+
+ return $header_images;
+}
+
+/**
+ * Get the header image data.
+ *
+ * @since 3.4.0
*
- * 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_Image_Header class and that will be added
- * to the 'admin_menu' action.
+ * @return object
+ */
+function get_custom_header() {
+ $data = is_random_header_image()? _get_random_header_data() : get_theme_mod( 'header_image_data' );
+ $default = array(
+ 'url' => '',
+ 'thumbnail_url' => '',
+ 'width' => get_theme_support( 'custom-header', 'width' ),
+ 'height' => get_theme_support( 'custom-header', 'height' ),
+ );
+ return (object) wp_parse_args( $data, $default );
+}
+
+/**
+ * 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
*
- * @since 2.1.0
- * @uses Custom_Image_Header Sets up for $admin_header_callback for administration panel display.
+ * @return string
+ */
+function get_background_image() {
+ return get_theme_mod('background_image', get_theme_support( 'custom-background', 'default-image' ) );
+}
+
+/**
+ * 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
+ *
+ * @return string
+ */
+function get_background_color() {
+ return get_theme_mod('background_color', get_theme_support( 'custom-background', 'default-color' ) );
+}
+
+/**
+ * Display background color value.
+ *
+ * @since 3.0.0
+ */
+function background_color() {
+ echo get_background_color();
+}
+
+/**
+ * Default custom background callback.
*
- * @param callback $header_callback Call on 'wp_head' action.
- * @param callback $admin_header_callback Call on administration panels.
+ * @since 3.0.0
+ * @access protected
*/
-function add_custom_image_header($header_callback, $admin_header_callback) {
- if ( ! empty($header_callback) )
- add_action('wp_head', $header_callback);
+function _custom_background_cb() {
+ // $background is the saved custom image, or the default image.
+ $background = 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_theme_mod( '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;
+ }
+?>
+<style type="text/css" id="custom-background-css">
+body.custom-background { <?php echo trim( $style ); ?> }
+</style>
+<?php
+}
+
+/**
+ * Add callback for custom TinyMCE editor stylesheets.
+ *
+ * The parameter $stylesheet is the name of the stylesheet, relative to
+ * the theme root. It also accepts an array of stylesheets.
+ * It is optional and defaults to 'editor-style.css'.
+ *
+ * This function automatically adds another stylesheet with -rtl prefix, e.g. editor-style-rtl.css.
+ * If that file doesn't exist, it is removed before adding the stylesheet(s) to TinyMCE.
+ * If an array of stylesheets is passed to add_editor_style(),
+ * RTL is only added for the first stylesheet.
+ *
+ * Since version 3.4 the TinyMCE body has .rtl CSS class.
+ * It is a better option to use that class and add any RTL styles to the main stylesheet.
+ *
+ * @since 3.0.0
+ *
+ * @param mixed $stylesheet Optional. Stylesheet name or array thereof, relative to theme root.
+ * Defaults to 'editor-style.css'
+ */
+function add_editor_style( $stylesheet = 'editor-style.css' ) {
+
+ add_theme_support( 'editor-style' );
if ( ! is_admin() )
return;
- 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'));
+
+ global $editor_styles;
+ $editor_styles = (array) $editor_styles;
+ $stylesheet = (array) $stylesheet;
+ if ( is_rtl() ) {
+ $rtl_stylesheet = str_replace('.css', '-rtl.css', $stylesheet[0]);
+ $stylesheet[] = $rtl_stylesheet;
+ }
+
+ $editor_styles = array_merge( $editor_styles, $stylesheet );
+}
+
+/**
+ * Removes all visual editor stylesheets.
+ *
+ * @since 3.1.0
+ *
+ * @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;
}
/**
* Allows a theme to register its support of a certain feature
- *
- * Must be called in the themes functions.php file to work.
*
- * @author Mark Jaquith
- * @since 2.9
+ * Must be called in the theme's functions.php file to work.
+ * If attached to a hook, it must be after_setup_theme.
+ * The init hook may be too late for some features.
+ *
+ * @since 2.9.0
* @param string $feature the feature being added
*/
function add_theme_support( $feature ) {
global $_wp_theme_features;
if ( func_num_args() == 1 )
- $_wp_theme_features[$feature] = true;
+ $args = true;
else
- $_wp_theme_features[$feature] = array_slice( func_get_args(), 1 );
+ $args = array_slice( func_get_args(), 1 );
+
+ switch ( $feature ) {
+ case 'post-formats' :
+ if ( is_array( $args[0] ) )
+ $args[0] = array_intersect( $args[0], array_keys( get_post_format_slugs() ) );
+ break;
+
+ case 'custom-header-uploads' :
+ return add_theme_support( 'custom-header', array( 'uploads' => true ) );
+ break;
+
+ case 'custom-header' :
+ if ( ! is_array( $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' => '',
+ );
+
+ $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 backwards 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 ( ! is_array( $args ) )
+ $args = array( 0 => array() );
+
+ $defaults = array(
+ 'default-image' => '',
+ '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;
+ }
+
+ $_wp_theme_features[ $feature ] = $args;
+}
+
+/**
+ * Registers the internal custom header and background routines.
+ *
+ * @since 3.4.0
+ * @access private
+ */
+function _custom_header_background_just_in_time() {
+ global $custom_image_header, $custom_background;
+
+ if ( current_theme_supports( 'custom-header' ) ) {
+ // In case any constants were defined after an add_custom_image_header() call, re-run.
+ add_theme_support( 'custom-header', array( '__jit' => true ) );
+
+ $args = get_theme_support( 'custom-header' );
+ if ( $args[0]['wp-head-callback'] )
+ add_action( 'wp_head', $args[0]['wp-head-callback'] );
+
+ if ( is_admin() ) {
+ require_once( ABSPATH . 'wp-admin/custom-header.php' );
+ $custom_image_header = new Custom_Image_Header( $args[0]['admin-head-callback'], $args[0]['admin-preview-callback'] );
+ }
+ }
+
+ if ( current_theme_supports( 'custom-background' ) ) {
+ // In case any constants were defined after an add_custom_background() call, re-run.
+ add_theme_support( 'custom-background', array( '__jit' => true ) );
+
+ $args = get_theme_support( 'custom-background' );
+ add_action( 'wp_head', $args[0]['wp-head-callback'] );
+
+ if ( is_admin() ) {
+ require_once( ABSPATH . 'wp-admin/custom-background.php' );
+ $custom_background = new Custom_Background( $args[0]['admin-head-callback'], $args[0]['admin-preview-callback'] );
+ }
+ }
+}
+add_action( 'wp_loaded', '_custom_header_background_just_in_time' );
+
+/**
+ * Gets the theme support arguments passed when registering that support
+ *
+ * @since 3.1
+ * @param string $feature the feature to check
+ * @return array The array of extra arguments
+ */
+function get_theme_support( $feature ) {
+ global $_wp_theme_features;
+ if ( ! isset( $_wp_theme_features[ $feature ] ) )
+ return false;
+
+ if ( func_num_args() <= 1 )
+ return $_wp_theme_features[ $feature ];
+
+ $args = array_slice( func_get_args(), 1 );
+ switch ( $feature ) {
+ 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;
+ break;
+ default :
+ return $_wp_theme_features[ $feature ];
+ break;
+ }
+}
+
+/**
+ * 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 added
+ * @return bool Whether feature was removed.
+ */
+function remove_theme_support( $feature ) {
+ // Blacklist: for internal registrations not used directly by themes.
+ if ( in_array( $feature, array( 'editor-style', 'widgets', 'menus' ) ) )
+ return false;
+
+ return _remove_theme_support( $feature );
+}
+
+/**
+ * Do not use. Removes theme support internally, ignorant of the blacklist.
+ *
+ * @access private
+ * @since 3.1.0
+ */
+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' :
+ $support = get_theme_support( 'custom-header' );
+ if ( $support[0]['wp-head-callback'] )
+ remove_action( 'wp_head', $support[0]['wp-head-callback'] );
+ remove_action( 'admin_menu', array( $GLOBALS['custom_image_header'], 'init' ) );
+ unset( $GLOBALS['custom_image_header'] );
+ break;
+
+ case 'custom-background' :
+ $support = get_theme_support( 'custom-background' );
+ remove_action( 'wp_head', $support[0]['wp-head-callback'] );
+ remove_action( 'admin_menu', array( $GLOBALS['custom_background'], 'init' ) );
+ unset( $GLOBALS['custom_background'] );
+ break;
+ }
+
+ unset( $_wp_theme_features[ $feature ] );
+ return true;
}
/**
* Checks a theme's support for a given feature
*
- * @author Mark Jaquith
- * @since 2.9
+ * @since 2.9.0
* @param string $feature the feature being checked
* @return boolean
*/
-
function current_theme_supports( $feature ) {
global $_wp_theme_features;
+ if ( 'custom-header-uploads' == $feature )
+ return current_theme_supports( 'custom-header', 'uploads' );
+
if ( !isset( $_wp_theme_features[$feature] ) )
return false;
@@ -1350,30 +1487,40 @@
$args = array_slice( func_get_args(), 1 );
- // @todo Allow pluggable arg checking
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
+ // 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 = $args[0];
- if ( in_array($content_type, $_wp_theme_features[$feature][0]) )
- return true;
- else
- return false;
+ return in_array( $content_type, $_wp_theme_features[$feature][0] );
+ break;
+
+ case 'post-formats':
+ // specific post formats can be registered by passing an array of types to
+ // add_theme_support()
+ $post_format = $args[0];
+ return in_array( $post_format, $_wp_theme_features[$feature][0] );
+ break;
+
+ case 'custom-header':
+ case 'custom-background' :
+ // specific custom header and background capabilities can be registered by passing
+ // an array to add_theme_support()
+ $header_support = $args[0];
+ return ( isset( $_wp_theme_features[$feature][0][$header_support] ) && $_wp_theme_features[$feature][0][$header_support] );
break;
}
- return true;
+ return apply_filters('current_theme_supports-' . $feature, true, $args, $_wp_theme_features[$feature]);
}
/**
* Checks a theme's support for a given feature before loading the functions which implement it.
*
- * @author Peter Westwood
- * @since 2.9
+ * @since 2.9.0
* @param string $feature the feature being checked
* @param string $include the file containing the functions that implement the feature
*/
@@ -1382,4 +1529,149 @@
require ( $include );
}
-?>
+/**
+ * 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
+ * @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();
+
+ if ( $header_image && $header_image == $attachment_image )
+ remove_theme_mod( 'header_image' );
+
+ if ( $background_image && $background_image == $attachment_image )
+ remove_theme_mod( 'background_image' );
+}
+
+add_action( 'delete_attachment', '_delete_attachment_theme_mod' );
+
+/**
+ * Checks if a theme has been changed and runs 'after_switch_theme' hook on the next WP load
+ *
+ * @since 3.3.0
+ */
+function check_theme_switched() {
+ if ( $stylesheet = get_option( 'theme_switched' ) ) {
+ $old_theme = wp_get_theme( $stylesheet );
+
+ if ( $old_theme->exists() )
+ do_action( 'after_switch_theme', $old_theme->get('Name'), $old_theme );
+ else
+ do_action( 'after_switch_theme', $stylesheet );
+
+ update_option( 'theme_switched', false );
+ }
+}
+
+/**
+ * Includes and instantiates the WP_Customize_Manager class.
+ *
+ * Fires when ?wp_customize=on or on wp-admin/customize.php.
+ *
+ * @since 3.4.0
+ */
+function _wp_customize_include() {
+ if ( ! ( ( isset( $_REQUEST['wp_customize'] ) && 'on' == $_REQUEST['wp_customize'] )
+ || ( is_admin() && 'customize.php' == basename( $_SERVER['PHP_SELF'] ) )
+ ) )
+ return;
+
+ require( ABSPATH . WPINC . '/class-wp-customize-manager.php' );
+ // Init Customize class
+ $GLOBALS['wp_customize'] = new WP_Customize_Manager;
+}
+add_action( 'plugins_loaded', '_wp_customize_include' );
+
+/**
+ * Adds settings for the customize-loader script.
+ *
+ * @since 3.4.0
+ */
+function _wp_customize_loader_settings() {
+ global $wp_scripts;
+
+ $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,
+ );
+
+ $script = 'var _wpCustomizeLoaderSettings = ' . json_encode( $settings ) . ';';
+
+ $data = $wp_scripts->get_data( 'customize-loader', 'data' );
+ if ( $data )
+ $script = "$data\n$script";
+
+ $wp_scripts->add_data( 'customize-loader', 'data', $script );
+}
+add_action( 'admin_enqueue_scripts', '_wp_customize_loader_settings' );
+
+/**
+ * Returns a URL to load the theme 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.
+ */
+function wp_customize_url( $stylesheet = null ) {
+ $url = admin_url( 'customize.php' );
+ if ( $stylesheet )
+ $url .= '?theme=' . urlencode( $stylesheet );
+ return esc_url( $url );
+}
+
+/**
+ * Prints a script to check whether or not the customizer is supported,
+ * and apply either the no-customize-support or customize-support class
+ * to the body.
+ *
+ * This function MUST be called inside the body tag.
+ *
+ * Ideally, call this function immediately after the body tag is opened.
+ * This prevents a flash of unstyled content.
+ *
+ * It is also recommended that you add the "no-customize-support" class
+ * to the body tag by default.
+ *
+ * @since 3.4.0
+ */
+function wp_customize_support_script() {
+ $admin_origin = parse_url( admin_url() );
+ $home_origin = parse_url( home_url() );
+ $cross_domain = ( strtolower( $admin_origin[ 'host' ] ) != strtolower( $home_origin[ 'host' ] ) );
+
+ ?>
+ <script type="text/javascript">
+ (function() {
+ var request, b = document.body, c = 'className', cs = 'customize-support', rcs = new RegExp('(^|\\s+)(no-)?'+cs+'(\\s+|$)');
+
+<?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, '' );
+ b[c] += ( window.postMessage && request ? ' ' : ' no-' ) + cs;
+ }());
+ </script>
+ <?php
+}
\ No newline at end of file