*
* @since 3.4.0
*
+ * @global array $wp_theme_directories
+ * @staticvar array $_themes
+ *
* @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.
* 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.
+ * @return array Array of WP_Theme objects.
*/
function wp_get_themes( $args = array() ) {
global $wp_theme_directories;
*
* @since 3.4.0
*
+ * @global array $wp_theme_directories
+ *
* @param string $stylesheet Directory name for the theme. Optional. Defaults to current theme.
* @param string $theme_root Absolute path of the theme root to look in. Optional. If not specified, get_raw_theme_root()
- * is used to calculate the theme root for the $stylesheet provided (or current theme).
+ * 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 ) {
* The theme name that the administrator has currently set the front end theme
* as.
*
- * For all extensive purposes, the template name and the stylesheet name are
+ * For all intents and purposes, the template name and the stylesheet name are
* going to be the same for most cases.
*
* @since 1.5.0
- * @uses apply_filters() Calls 'stylesheet' filter on stylesheet name.
*
* @return string Stylesheet name.
*/
function get_stylesheet() {
- return apply_filters('stylesheet', get_option('stylesheet'));
+ /**
+ * Filter the name of current stylesheet.
+ *
+ * @since 1.5.0
+ *
+ * @param string $stylesheet Name of the current stylesheet.
+ */
+ return apply_filters( 'stylesheet', get_option( 'stylesheet' ) );
}
/**
* Retrieve stylesheet directory path for current theme.
*
* @since 1.5.0
- * @uses apply_filters() Calls 'stylesheet_directory' filter on stylesheet directory and theme name.
*
* @return string Path to current theme directory.
*/
$theme_root = get_theme_root( $stylesheet );
$stylesheet_dir = "$theme_root/$stylesheet";
+ /**
+ * Filter the stylesheet directory path for current theme.
+ *
+ * @since 1.5.0
+ *
+ * @param string $stylesheet_dir Absolute path to the current them.
+ * @param string $stylesheet Directory name of the current theme.
+ * @param string $theme_root Absolute path to themes directory.
+ */
return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root );
}
* @return string
*/
function get_stylesheet_directory_uri() {
- $stylesheet = get_stylesheet();
+ $stylesheet = str_replace( '%2F', '/', rawurlencode( get_stylesheet() ) );
$theme_root_uri = get_theme_root_uri( $stylesheet );
$stylesheet_dir_uri = "$theme_root_uri/$stylesheet";
+ /**
+ * Filter the stylesheet directory URI.
+ *
+ * @since 1.5.0
+ *
+ * @param string $stylesheet_dir_uri Stylesheet directory URI.
+ * @param string $stylesheet Name of the activated theme's directory.
+ * @param string $theme_root_uri Themes root URI.
+ */
return apply_filters( 'stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet, $theme_root_uri );
}
* get_stylesheet_directory_uri() stylesheet directory URI} path.
*
* @since 1.5.0
- * @uses apply_filters() Calls 'stylesheet_uri' filter on stylesheet URI path and stylesheet directory URI.
*
* @return string
*/
function get_stylesheet_uri() {
$stylesheet_dir_uri = get_stylesheet_directory_uri();
$stylesheet_uri = $stylesheet_dir_uri . '/style.css';
- return apply_filters('stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
+ /**
+ * Filter the URI of the current theme stylesheet.
+ *
+ * @since 1.5.0
+ *
+ * @param string $stylesheet_uri Stylesheet URI for the current theme/child theme.
+ * @param string $stylesheet_dir_uri Stylesheet directory URI for the current theme/child theme.
+ */
+ return apply_filters( 'stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri );
}
/**
* separate folder, then change the latter.
*
* @since 2.1.0
- * @uses apply_filters() Calls 'locale_stylesheet_uri' filter on stylesheet URI path and stylesheet directory URI.
+ *
+ * @global WP_Locale $wp_locale
*
* @return string
*/
$stylesheet_uri = "$stylesheet_dir_uri/{$wp_locale->text_direction}.css";
else
$stylesheet_uri = '';
- return apply_filters('locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri);
+ /**
+ * Filter the localized stylesheet URI.
+ *
+ * @since 2.1.0
+ *
+ * @param string $stylesheet_uri Localized stylesheet URI.
+ * @param string $stylesheet_dir_uri Stylesheet directory URI.
+ */
+ return apply_filters( 'locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri );
}
/**
* Retrieve name of the current theme.
*
* @since 1.5.0
- * @uses apply_filters() Calls 'template' filter on template option.
*
* @return string Template name.
*/
function get_template() {
- return apply_filters('template', get_option('template'));
+ /**
+ * Filter the name of the current theme.
+ *
+ * @since 1.5.0
+ *
+ * @param string $template Current theme's directory name.
+ */
+ return apply_filters( 'template', get_option( 'template' ) );
}
/**
* Retrieve current theme directory.
*
* @since 1.5.0
- * @uses apply_filters() Calls 'template_directory' filter on template directory path and template name.
*
* @return string Template directory path.
*/
$theme_root = get_theme_root( $template );
$template_dir = "$theme_root/$template";
+ /**
+ * Filter the current theme directory path.
+ *
+ * @since 1.5.0
+ *
+ * @param string $template_dir The URI of the current theme directory.
+ * @param string $template Directory name of the current theme.
+ * @param string $theme_root Absolute path to the themes directory.
+ */
return apply_filters( 'template_directory', $template_dir, $template, $theme_root );
}
* Retrieve theme directory URI.
*
* @since 1.5.0
- * @uses apply_filters() Calls 'template_directory_uri' filter on template directory URI path and template name.
*
* @return string Template directory URI.
*/
function get_template_directory_uri() {
- $template = get_template();
+ $template = str_replace( '%2F', '/', rawurlencode( get_template() ) );
$theme_root_uri = get_theme_root_uri( $template );
$template_dir_uri = "$theme_root_uri/$template";
+ /**
+ * Filter the current theme directory URI.
+ *
+ * @since 1.5.0
+ *
+ * @param string $template_dir_uri The URI of the current theme directory.
+ * @param string $template Directory name of the current theme.
+ * @param string $theme_root_uri The themes root URI.
+ */
return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri );
}
*
* @since 2.9.0
*
+ * @global array $wp_theme_directories
+ *
* @return array|string An array of theme roots keyed by template/stylesheet or a single theme root if all themes have the same root.
*/
function get_theme_roots() {
*
* @since 2.9.0
*
+ * @global array $wp_theme_directories
+ *
* @param string $directory Either the full filesystem path to a theme folder or a folder within WP_CONTENT_DIR
* @return bool
*/
// 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 ) )
+ if ( ! file_exists( $directory ) ) {
return false;
+ }
}
- $wp_theme_directories[] = $directory;
+ if ( ! is_array( $wp_theme_directories ) ) {
+ $wp_theme_directories = array();
+ }
+
+ $untrailed = untrailingslashit( $directory );
+ if ( ! empty( $untrailed ) && ! in_array( $untrailed, $wp_theme_directories ) ) {
+ $wp_theme_directories[] = $untrailed;
+ }
return true;
}
*
* @since 2.9.0
*
+ * @global array $wp_theme_directories
+ * @staticvar array $found_themes
+ *
* @param bool $force Optional. Whether to force a new directory scan. Defaults to false.
- * @return array Valid themes found
+ * @return array|false Valid themes found
*/
function search_theme_directories( $force = false ) {
global $wp_theme_directories;
+ static $found_themes = null;
+
if ( empty( $wp_theme_directories ) )
return false;
- static $found_themes;
if ( ! $force && isset( $found_themes ) )
return $found_themes;
$found_themes = array();
$wp_theme_directories = (array) $wp_theme_directories;
+ $relative_theme_roots = array();
// Set up maybe-relative, maybe-absolute array of theme directories.
// We always want to return absolute, but we need to cache relative
$relative_theme_roots[ $theme_root ] = $theme_root;
}
+ /**
+ * Filter whether to get the cache of the registered theme directories.
+ *
+ * @since 3.4.0
+ *
+ * @param bool $cache_expiration Whether to get the cache of the theme directories. Default false.
+ * @param string $cache_directory Directory to be searched for the cache.
+ */
if ( $cache_expiration = apply_filters( 'wp_cache_themes_persistently', false, 'search_theme_directories' ) ) {
$cached_roots = get_site_transient( 'theme_roots' );
if ( is_array( $cached_roots ) ) {
* Does not have trailing slash.
*
* @since 1.5.0
- * @uses apply_filters() Calls 'theme_root' filter on path.
+ *
+ * @global array $wp_theme_directories
*
* @param string $stylesheet_or_template The stylesheet or template name of the theme
* @return string Theme path.
$theme_root = WP_CONTENT_DIR . '/themes';
}
+ /**
+ * Filter the absolute path to the themes directory.
+ *
+ * @since 1.5.0
+ *
+ * @param string $theme_root Absolute path to themes directory.
+ */
return apply_filters( 'theme_root', $theme_root );
}
*
* @since 1.5.0
*
+ * @global array $wp_theme_directories
+ *
* @param string $stylesheet_or_template Optional. The stylesheet or template name of the theme.
- * Default is to leverage the main theme root.
- * @param string $theme_root Optional. The theme root for which calculations will be based, preventing
- * the need for a get_raw_theme_root() call.
+ * Default is to leverage the main theme root.
+ * @param string $theme_root Optional. The theme root for which calculations will be based, preventing
+ * the need for a get_raw_theme_root() call.
* @return string Themes URI.
*/
function get_theme_root_uri( $stylesheet_or_template = false, $theme_root = false ) {
$theme_root_uri = content_url( 'themes' );
}
- return apply_filters( 'theme_root_uri', $theme_root_uri, get_option('siteurl'), $stylesheet_or_template );
+ /**
+ * Filter the URI for themes directory.
+ *
+ * @since 1.5.0
+ *
+ * @param string $theme_root_uri The URI for themes directory.
+ * @param string $siteurl WordPress web address which is set in General Options.
+ * @param string $stylesheet_or_template Stylesheet or template name of the theme.
+ */
+ return apply_filters( 'theme_root_uri', $theme_root_uri, get_option( 'siteurl' ), $stylesheet_or_template );
}
/**
*
* @since 3.1.0
*
+ * @global array $wp_theme_directories
+ *
* @param string $stylesheet_or_template The stylesheet or template name of the theme
- * @param bool $skip_cache Optional. Whether to skip the cache. Defaults to false, meaning the cache is used.
+ * @param bool $skip_cache Optional. Whether to skip the cache.
+ * Defaults to false, meaning the cache is used.
* @return string Theme root
*/
function get_raw_theme_root( $stylesheet_or_template, $skip_cache = false ) {
echo '<link rel="stylesheet" href="' . $stylesheet . '" type="text/css" media="screen" />';
}
-/**
- * Start preview theme output buffer.
- *
- * Will only perform task if the user has permissions and template and preview
- * query variables exist.
- *
- * @since 2.6.0
- */
-function preview_theme() {
- if ( ! (isset($_GET['template']) && isset($_GET['preview'])) )
- return;
-
- 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']) )
- return;
-
- add_filter( 'template', '_preview_theme_template_filter' );
-
- if ( isset($_GET['stylesheet']) ) {
- $_GET['stylesheet'] = preg_replace('|[^a-z0-9_./-]|i', '', $_GET['stylesheet']);
- if ( validate_file($_GET['stylesheet']) )
- return;
- add_filter( 'stylesheet', '_preview_theme_stylesheet_filter' );
- }
-
- // Prevent theme mods to current theme being used on theme being previewed
- add_filter( 'pre_option_theme_mods_' . get_option( 'stylesheet' ), '__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 2.6.0
- * @access private
- *
- * @param string $content
- * @return string
- */
-function preview_theme_ob_filter( $content ) {
- return preg_replace_callback( "|(<a.*?href=([\"']))(.*?)([\"'].*?>)|", 'preview_theme_ob_filter_callback', $content );
-}
-
-/**
- * Manipulates preview theme links in order to control and maintain location.
- *
- * Callback function for preg_replace_callback() to accept and filter matches.
- *
- * @since 2.6.0
- * @access private
- *
- * @param array $matches
- * @return string
- */
-function preview_theme_ob_filter_callback( $matches ) {
- if ( strpos($matches[4], 'onclick') !== false )
- $matches[4] = preg_replace('#onclick=([\'"]).*?(?<!\\\)\\1#i', '', $matches[4]); //Strip out any onclicks from rest of <a>. (?<!\\\) means to ignore the '" if it's escaped by \ to prevent breaking mid-attribute.
- if (
- ( false !== strpos($matches[3], '/wp-admin/') )
- ||
- ( false !== strpos( $matches[3], '://' ) && 0 !== strpos( $matches[3], home_url() ) )
- ||
- ( false !== strpos($matches[3], '/feed/') )
- ||
- ( false !== strpos($matches[3], '/trackback/') )
- )
- return $matches[1] . "#$matches[2] onclick=$matches[2]return false;" . $matches[4];
-
- $stylesheet = isset( $_GET['stylesheet'] ) ? $_GET['stylesheet'] : '';
- $template = isset( $_GET['template'] ) ? $_GET['template'] : '';
-
- $link = add_query_arg( array( 'preview' => 1, 'template' => $template, 'stylesheet' => $stylesheet, 'preview_iframe' => 1 ), $matches[3] );
- if ( 0 === strpos($link, 'preview=1') )
- $link = "?$link";
- return $matches[1] . esc_attr( $link ) . $matches[4];
-}
-
/**
* Switches the theme.
*
* of two arguments: $template then $stylesheet. This is for backwards compatibility.
*
* @since 2.5.0
- * @uses do_action() Calls 'switch_theme' action, passing the new theme.
+ *
+ * @global array $wp_theme_directories
+ * @global WP_Customize_Manager $wp_customize
+ * @global array $sidebars_widgets
*
* @param string $stylesheet Stylesheet name
*/
function switch_theme( $stylesheet ) {
- global $wp_theme_directories, $sidebars_widgets;
+ global $wp_theme_directories, $wp_customize, $sidebars_widgets;
+
+ $_sidebars_widgets = null;
+ if ( 'wp_ajax_customize_save' === current_action() ) {
+ $_sidebars_widgets = $wp_customize->post_value( $wp_customize->get_setting( 'old_sidebars_widgets_data' ) );
+ } elseif ( is_array( $sidebars_widgets ) ) {
+ $_sidebars_widgets = $sidebars_widgets;
+ }
- if ( is_array( $sidebars_widgets ) )
- set_theme_mod( 'sidebars_widgets', array( 'time' => time(), 'data' => $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 );
+ $nav_menu_locations = get_theme_mod( 'nav_menu_locations' );
if ( func_num_args() > 1 ) {
- $template = $stylesheet;
$stylesheet = func_get_arg( 1 );
- } else {
- $template = $new_theme->get_template();
}
+ $old_theme = wp_get_theme();
+ $new_theme = wp_get_theme( $stylesheet );
+ $template = $new_theme->get_template();
+
update_option( 'template', $template );
update_option( 'stylesheet', $stylesheet );
update_option( 'current_theme', $new_name );
+ // Migrate from the old mods_{name} option to theme_mods_{slug}.
if ( is_admin() && false === get_option( 'theme_mods_' . $stylesheet ) ) {
$default_theme_mods = (array) get_option( 'mods_' . $new_name );
+ if ( ! empty( $nav_menu_locations ) && empty( $default_theme_mods['nav_menu_locations'] ) ) {
+ $default_theme_mods['nav_menu_locations'] = $nav_menu_locations;
+ }
add_option( "theme_mods_$stylesheet", $default_theme_mods );
+ } else {
+ /*
+ * Since retrieve_widgets() is called when initializing a theme in the Customizer,
+ * we need to to remove the theme mods to avoid overwriting changes made via
+ * the Customizer when accessing wp-admin/widgets.php.
+ */
+ if ( 'wp_ajax_customize_save' === current_action() ) {
+ remove_theme_mod( 'sidebars_widgets' );
+ }
+
+ if ( ! empty( $nav_menu_locations ) ) {
+ $nav_mods = get_theme_mod( 'nav_menu_locations' );
+ if ( empty( $nav_mods ) ) {
+ set_theme_mod( 'nav_menu_locations', $nav_menu_locations );
+ }
+ }
}
update_option( 'theme_switched', $old_theme->get_stylesheet() );
+ /**
+ * Fires after the theme is switched.
+ *
+ * @since 1.5.0
+ *
+ * @param string $new_name Name of the new theme.
+ * @param WP_Theme $new_theme WP_Theme instance of the new theme.
+ */
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, which is the fallback and should always exist.
+ * Does not initially check the default theme, which is the fallback and should always exist.
+ * But if it doesn't exist, it'll fall back to the latest core default theme that does exist.
* Will switch theme to the fallback theme if current theme does not validate.
+ *
* You can use the 'validate_current_theme' filter to return false to
* disable this functionality.
*
* @return bool
*/
function validate_current_theme() {
- // Don't validate during an install/upgrade.
- if ( defined('WP_INSTALLING') || !apply_filters( 'validate_current_theme', true ) )
+ /**
+ * Filter whether to validate the current theme.
+ *
+ * @since 2.7.0
+ *
+ * @param bool true Validation flag to check the current theme.
+ */
+ if ( wp_installing() || ! apply_filters( 'validate_current_theme', true ) )
return true;
- if ( get_template() != WP_DEFAULT_THEME && !file_exists(get_template_directory() . '/index.php') ) {
- switch_theme( WP_DEFAULT_THEME );
- return false;
+ if ( ! file_exists( get_template_directory() . '/index.php' ) ) {
+ // Invalid.
+ } elseif ( ! file_exists( get_template_directory() . '/style.css' ) ) {
+ // Invalid.
+ } elseif ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) {
+ // Invalid.
+ } else {
+ // Valid.
+ return true;
}
- if ( get_stylesheet() != WP_DEFAULT_THEME && !file_exists(get_template_directory() . '/style.css') ) {
+ $default = wp_get_theme( WP_DEFAULT_THEME );
+ if ( $default->exists() ) {
switch_theme( WP_DEFAULT_THEME );
return false;
}
- if ( is_child_theme() && ! file_exists( get_stylesheet_directory() . '/style.css' ) ) {
- switch_theme( WP_DEFAULT_THEME );
- return false;
+ /**
+ * If we're in an invalid state but WP_DEFAULT_THEME doesn't exist,
+ * switch to the latest core default theme that's installed.
+ * If it turns out that this latest core default theme is our current
+ * theme, then there's nothing we can do about that, so we have to bail,
+ * rather than going into an infinite loop. (This is why there are
+ * checks against WP_DEFAULT_THEME above, also.) We also can't do anything
+ * if it turns out there is no default theme installed. (That's `false`.)
+ */
+ $default = WP_Theme::get_core_default_theme();
+ if ( false === $default || get_stylesheet() == $default->get_stylesheet() ) {
+ return true;
}
- return true;
+ switch_theme( $default->get_stylesheet() );
+ return false;
}
/**
*
* @since 3.1.0
*
- * @return array Theme modifications.
+ * @return array|void Theme modifications.
*/
function get_theme_mods() {
$theme_slug = get_option( 'stylesheet' );
- if ( false === ( $mods = get_option( "theme_mods_$theme_slug" ) ) ) {
+ $mods = get_option( "theme_mods_$theme_slug" );
+ if ( false === $mods ) {
$theme_name = get_option( 'current_theme' );
if ( false === $theme_name )
$theme_name = wp_get_theme()->get('Name');
* directory URI.
*
* @since 2.1.0
- * @uses apply_filters() Calls 'theme_mod_$name' filter on the value.
*
- * @param string $name Theme modification name.
+ * @param string $name Theme modification name.
* @param bool|string $default
* @return string
*/
function get_theme_mod( $name, $default = false ) {
$mods = get_theme_mods();
- if ( isset( $mods[ $name ] ) )
- return apply_filters( "theme_mod_$name", $mods[ $name ] );
+ if ( isset( $mods[$name] ) ) {
+ /**
+ * Filter the theme modification, or 'theme_mod', value.
+ *
+ * The dynamic portion of the hook name, `$name`, refers to
+ * the key name of the modification array. For example,
+ * 'header_textcolor', 'header_image', and so on depending
+ * on the theme options.
+ *
+ * @since 2.2.0
+ *
+ * @param string $current_mod The value of the current theme modification.
+ */
+ return apply_filters( "theme_mod_{$name}", $mods[$name] );
+ }
if ( is_string( $default ) )
$default = sprintf( $default, get_template_directory_uri(), get_stylesheet_directory_uri() );
- return apply_filters( "theme_mod_$name", $default );
+ /** This filter is documented in wp-includes/theme.php */
+ return apply_filters( "theme_mod_{$name}", $default );
}
/**
*
* @since 2.1.0
*
- * @param string $name Theme modification name.
- * @param string $value theme modification value.
+ * @param string $name Theme modification name.
+ * @param mixed $value Theme modification value.
*/
function set_theme_mod( $name, $value ) {
$mods = get_theme_mods();
-
- $mods[ $name ] = $value;
+ $old_value = isset( $mods[ $name ] ) ? $mods[ $name ] : false;
+
+ /**
+ * Filter the theme mod value on save.
+ *
+ * The dynamic portion of the hook name, `$name`, refers to the key name of
+ * the modification array. For example, 'header_textcolor', 'header_image',
+ * and so on depending on the theme options.
+ *
+ * @since 3.9.0
+ *
+ * @param string $value The new value of the theme mod.
+ * @param string $old_value The current value of the theme mod.
+ */
+ $mods[ $name ] = apply_filters( "pre_set_theme_mod_$name", $value, $old_value );
$theme = get_option( 'stylesheet' );
update_option( "theme_mods_$theme", $mods );
* @since 2.1.0
*
* @param string $name Theme modification name.
- * @return null
*/
function remove_theme_mod( $name ) {
$mods = get_theme_mods();
unset( $mods[ $name ] );
- if ( empty( $mods ) )
- return remove_theme_mods();
-
+ if ( empty( $mods ) ) {
+ remove_theme_mods();
+ return;
+ }
$theme = get_option( 'stylesheet' );
update_option( "theme_mods_$theme", $mods );
}
return false;
$text_color = get_theme_mod( 'header_textcolor', get_theme_support( 'custom-header', 'default-text-color' ) );
- return 'blank' != $text_color;
+ return 'blank' !== $text_color;
+}
+
+/**
+ * Check whether a header image is set or not.
+ *
+ * @since 4.2.0
+ *
+ * @see get_header_image()
+ *
+ * @return bool Whether a header image is set or not.
+ */
+function has_header_image() {
+ return (bool) get_header_image();
}
/**
*
* @since 2.1.0
*
- * @return string
+ * @return string|false
*/
function get_header_image() {
$url = get_theme_mod( 'header_image', get_theme_support( 'custom-header', 'default-image' ) );
return esc_url_raw( set_url_scheme( $url ) );
}
+/**
+ * Create image tag markup for a custom header image.
+ *
+ * @since 4.4.0
+ *
+ * @param array $attr Optional. Additional attributes for the image tag. Can be used
+ * to override the default attributes. Default empty.
+ * @return string HTML image element markup or empty string on failure.
+ */
+function get_header_image_tag( $attr = array() ) {
+ $header = get_custom_header();
+
+ if ( empty( $header->url ) ) {
+ return '';
+ }
+
+ $width = absint( $header->width );
+ $height = absint( $header->height );
+
+ $attr = wp_parse_args(
+ $attr,
+ array(
+ 'src' => $header->url,
+ 'width' => $width,
+ 'height' => $height,
+ 'alt' => get_bloginfo( 'name' ),
+ )
+ );
+
+ // Generate 'srcset' and 'sizes' if not already present.
+ if ( empty( $attr['srcset'] ) && ! empty( $header->attachment_id ) ) {
+ $image_meta = get_post_meta( $header->attachment_id, '_wp_attachment_metadata', true );
+ $size_array = array( $width, $height );
+
+ if ( is_array( $image_meta ) ) {
+ $srcset = wp_calculate_image_srcset( $size_array, $header->url, $image_meta, $header->attachment_id );
+ $sizes = ! empty( $attr['sizes'] ) ? $attr['sizes'] : wp_calculate_image_sizes( $size_array, $header->url, $image_meta, $header->attachment_id );
+
+ if ( $srcset && $sizes ) {
+ $attr['srcset'] = $srcset;
+ $attr['sizes'] = $sizes;
+ }
+ }
+ }
+
+ $attr = array_map( 'esc_attr', $attr );
+ $html = '<img';
+
+ foreach ( $attr as $name => $value ) {
+ $html .= ' ' . $name . '="' . $value . '"';
+ }
+
+ $html .= ' />';
+
+ /**
+ * Filter the markup of header images.
+ *
+ * @since 4.4.0
+ *
+ * @param string $html The HTML image tag markup being filtered.
+ * @param object $header The custom header object returned by 'get_custom_header()'.
+ * @param array $attr Array of the attributes for the image tag.
+ */
+ return apply_filters( 'get_header_image_tag', $html, $header, $attr );
+}
+
+/**
+ * Display the image markup for a custom header image.
+ *
+ * @since 4.4.0
+ *
+ * @param array $attr Optional. Attributes for the image markup. Default empty.
+ */
+function the_header_image_tag( $attr = array() ) {
+ echo get_header_image_tag( $attr );
+}
+
/**
* Get random header image data from registered images in theme.
*
*
* @access private
*
- * @return string Path to header image
+ * @global array $_wp_default_headers
+ * @staticvar object $_wp_random_header
+ *
+ * @return object
*/
-
function _get_random_header_data() {
- static $_wp_random_header;
+ static $_wp_random_header = null;
if ( empty( $_wp_random_header ) ) {
global $_wp_default_headers;
*
* @return string Path to header image
*/
-
function get_random_header_image() {
$random_image = _get_random_header_data();
if ( empty( $random_image->url ) )
* @since 3.2.0
*
* @param string $type The random pool to use. any|default|uploaded
- * @return boolean
+ * @return bool
*/
function is_random_header_image( $type = 'any' ) {
$header_image_mod = get_theme_mod( 'header_image', get_theme_support( 'custom-header', 'default-image' ) );
* @since 2.1.0
*/
function header_image() {
- echo esc_url( get_header_image() );
+ $image = get_header_image();
+ if ( $image ) {
+ echo esc_url( $image );
+ }
}
/**
return array();
foreach ( (array) $headers as $header ) {
- $url = esc_url_raw( $header->guid );
+ $url = esc_url_raw( wp_get_attachment_url( $header->ID ) );
$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]['attachment_id'] = $header->ID;
$header_images[$header_index]['url'] = $url;
- $header_images[$header_index]['thumbnail_url'] = $url;
+ $header_images[$header_index]['thumbnail_url'] = $url;
+ $header_images[$header_index]['alt_text'] = get_post_meta( $header->ID, '_wp_attachment_image_alt', true );
+
if ( isset( $header_data['width'] ) )
$header_images[$header_index]['width'] = $header_data['width'];
if ( isset( $header_data['height'] ) )
*
* @since 3.4.0
*
+ * @global array $_wp_default_headers
+ *
* @return object
*/
function get_custom_header() {
*
* @since 3.0.0
*
+ * @global array $_wp_default_headers
+ *
* @param array $headers Array of headers keyed by a string id. The ids point to arrays containing 'url', 'thumbnail_url', and 'description' keys.
*/
function register_default_headers( $headers ) {
* @see register_default_headers()
* @since 3.0.0
*
+ * @global array $_wp_default_headers
+ *
* @param string|array $header The header string id (key of array) to remove, or an array thereof.
- * @return True on success, false on failure.
+ * @return bool|void A single header returns true on success, false on failure.
+ * There is currently no return value for multiple headers.
*/
function unregister_default_headers( $header ) {
global $_wp_default_headers;
// $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' );
+ $color = get_background_color();
+
+ if ( $color === get_theme_support( 'custom-background', 'default-color' ) ) {
+ $color = false;
+ }
if ( ! $background && ! $color )
return;
if ( $background ) {
$image = " background-image: url('$background');";
- $repeat = get_theme_mod( 'background_repeat', 'repeat' );
+ $repeat = get_theme_mod( 'background_repeat', get_theme_support( 'custom-background', 'default-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' );
+ $position = get_theme_mod( 'background_position_x', get_theme_support( 'custom-background', 'default-position-x' ) );
if ( ! in_array( $position, array( 'center', 'right', 'left' ) ) )
$position = 'left';
$position = " background-position: top $position;";
- $attachment = get_theme_mod( 'background_attachment', 'scroll' );
+ $attachment = get_theme_mod( 'background_attachment', get_theme_support( 'custom-background', 'default-attachment' ) );
if ( ! in_array( $attachment, array( 'fixed', 'scroll' ) ) )
$attachment = 'scroll';
$attachment = " background-attachment: $attachment;";
*
* @since 3.0.0
*
- * @param mixed $stylesheet Optional. Stylesheet name or array thereof, relative to theme root.
- * Defaults to 'editor-style.css'
+ * @global array $editor_styles
+ *
+ * @param array|string $stylesheet Optional. Stylesheet name or array thereof, relative to theme root.
+ * Defaults to 'editor-style.css'
*/
function add_editor_style( $stylesheet = 'editor-style.css' ) {
-
add_theme_support( 'editor-style' );
if ( ! is_admin() )
*
* @since 3.1.0
*
+ * @global array $editor_styles
+ *
* @return bool True on success, false if there were no stylesheets to remove.
*/
function remove_editor_styles() {
return true;
}
+/**
+ * Retrieve any registered editor stylesheets
+ *
+ * @since 4.0.0
+ *
+ * @global array $editor_styles Registered editor stylesheets
+ *
+ * @return array If registered, a list of editor stylesheet URLs.
+ */
+function get_editor_stylesheets() {
+ $stylesheets = array();
+ // load editor_style.css if the current theme supports it
+ if ( ! empty( $GLOBALS['editor_styles'] ) && is_array( $GLOBALS['editor_styles'] ) ) {
+ $editor_styles = $GLOBALS['editor_styles'];
+
+ $editor_styles = array_unique( array_filter( $editor_styles ) );
+ $style_uri = get_stylesheet_directory_uri();
+ $style_dir = get_stylesheet_directory();
+
+ // Support externally referenced styles (like, say, fonts).
+ foreach ( $editor_styles as $key => $file ) {
+ if ( preg_match( '~^(https?:)?//~', $file ) ) {
+ $stylesheets[] = esc_url_raw( $file );
+ unset( $editor_styles[ $key ] );
+ }
+ }
+
+ // Look in a parent theme first, that way child theme CSS overrides.
+ if ( is_child_theme() ) {
+ $template_uri = get_template_directory_uri();
+ $template_dir = get_template_directory();
+
+ foreach ( $editor_styles as $key => $file ) {
+ if ( $file && file_exists( "$template_dir/$file" ) ) {
+ $stylesheets[] = "$template_uri/$file";
+ }
+ }
+ }
+
+ foreach ( $editor_styles as $file ) {
+ if ( $file && file_exists( "$style_dir/$file" ) ) {
+ $stylesheets[] = "$style_uri/$file";
+ }
+ }
+ }
+
+ /**
+ * Filter the array of stylesheets applied to the editor.
+ *
+ * @since 4.3.0
+ *
+ * @param array $stylesheets Array of stylesheets to be applied to the editor.
+ */
+ return apply_filters( 'editor_stylesheets', $stylesheets );
+}
+
/**
* Allows a theme to register its support of a certain feature
*
* The init hook may be too late for some features.
*
* @since 2.9.0
- * @param string $feature the feature being added
+ *
+ * @global array $_wp_theme_features
+ *
+ * @param string $feature The feature being added.
+ * @return void|bool False on failure, void otherwise.
*/
function add_theme_support( $feature ) {
global $_wp_theme_features;
switch ( $feature ) {
case 'post-formats' :
- if ( is_array( $args[0] ) )
- $args[0] = array_intersect( $args[0], array_keys( get_post_format_slugs() ) );
+ if ( is_array( $args[0] ) ) {
+ $post_formats = get_post_format_slugs();
+ unset( $post_formats['standard'] );
+
+ $args[0] = array_intersect( $args[0], array_keys( $post_formats ) );
+ }
break;
case 'html5' :
// You can't just pass 'html5', you need to pass an array of types.
if ( empty( $args[0] ) ) {
+ // Build an array of types for back-compat.
$args = array( 0 => array( 'comment-list', 'comment-form', 'search-form' ) );
} elseif ( ! is_array( $args[0] ) ) {
- _doing_it_wrong( "add_theme_support( 'html5' )", 'You need to pass an array of types.', '3.6.1' );
+ _doing_it_wrong( "add_theme_support( 'html5' )", __( 'You need to pass an array of types.' ), '3.6.1' );
return false;
}
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' => '',
- 'default-color' => '',
- 'wp-head-callback' => '_custom_background_cb',
- 'admin-head-callback' => '',
+ 'default-image' => '',
+ 'default-repeat' => 'repeat',
+ 'default-position-x' => 'left',
+ 'default-attachment' => 'scroll',
+ 'default-color' => '',
+ 'wp-head-callback' => '_custom_background_cb',
+ 'admin-head-callback' => '',
'admin-preview-callback' => '',
);
define( 'BACKGROUND_IMAGE', $args[0]['default-image'] );
break;
+
+ // Ensure that 'title-tag' is accessible in the admin.
+ case 'title-tag' :
+ // Can be called in functions.php but must happen before wp_loaded, i.e. not in header.php.
+ if ( did_action( 'wp_loaded' ) ) {
+ /* translators: 1: Theme support 2: hook name */
+ _doing_it_wrong( "add_theme_support( 'title-tag' )", sprintf( __( 'Theme support for %1$s should be registered before the %2$s hook.' ),
+ '<code>title-tag</code>', '<code>wp_loaded</code>' ), '4.1' );
+
+ return false;
+ }
}
$_wp_theme_features[ $feature ] = $args;
*
* @since 3.4.0
* @access private
+ *
+ * @global Custom_Image_Header $custom_image_header
+ * @global Custom_Background $custom_background
*/
function _custom_header_background_just_in_time() {
global $custom_image_header, $custom_background;
}
}
}
-add_action( 'wp_loaded', '_custom_header_background_just_in_time' );
/**
* Gets the theme support arguments passed when registering that support
*
- * @since 3.1
+ * @since 3.1.0
+ *
+ * @global array $_wp_theme_features
+ *
* @param string $feature the feature to check
- * @return array The array of extra arguments
+ * @return mixed The array of extra arguments or the value for the registered feature.
*/
function get_theme_support( $feature ) {
global $_wp_theme_features;
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;
}
}
* @since 3.0.0
* @see add_theme_support()
* @param string $feature the feature being added
- * @return bool Whether feature was removed.
+ * @return bool|void Whether feature was removed.
*/
function remove_theme_support( $feature ) {
// Blacklist: for internal registrations not used directly by themes.
*
* @access private
* @since 3.1.0
+ *
+ * @global array $_wp_theme_features
+ * @global Custom_Image_Header $custom_image_header
+ * @global Custom_Background $custom_background
+ *
+ * @param string $feature
*/
function _remove_theme_support( $feature ) {
global $_wp_theme_features;
* Checks a theme's support for a given feature
*
* @since 2.9.0
+ *
+ * @global array $_wp_theme_features
+ *
* @param string $feature the feature being checked
- * @return boolean
+ * @return bool
*/
function current_theme_supports( $feature ) {
global $_wp_theme_features;
return true;
$content_type = $args[0];
return in_array( $content_type, $_wp_theme_features[$feature][0] );
- break;
case 'html5':
case 'post-formats':
$type = $args[0];
return in_array( $type, $_wp_theme_features[$feature][0] );
- break;
case 'custom-header':
case 'custom-background' :
// 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 apply_filters('current_theme_supports-' . $feature, true, $args, $_wp_theme_features[$feature]);
+ /**
+ * Filter whether the current theme supports a specific feature.
+ *
+ * The dynamic portion of the hook name, `$feature`, refers to the specific theme
+ * feature. Possible values include 'post-formats', 'post-thumbnails', 'custom-background',
+ * 'custom-header', 'menus', 'automatic-feed-links', and 'html5'.
+ *
+ * @since 3.4.0
+ *
+ * @param bool true Whether the current theme supports the given feature. Default true.
+ * @param array $args Array of arguments for the feature.
+ * @param string $feature The theme feature.
+ */
+ return apply_filters( "current_theme_supports-{$feature}", true, $args, $_wp_theme_features[$feature] );
}
/**
* Checks a theme's support for a given feature before loading the functions which implement it.
*
* @since 2.9.0
- * @param string $feature the feature being checked
- * @param string $include the file containing the functions that implement the feature
+ *
+ * @param string $feature The feature being checked.
+ * @param string $include Path to the file.
+ * @return bool True if the current theme supports the supplied feature, false otherwise.
*/
-function require_if_theme_supports( $feature, $include) {
- if ( current_theme_supports( $feature ) )
+function require_if_theme_supports( $feature, $include ) {
+ if ( current_theme_supports( $feature ) ) {
require ( $include );
+ return true;
+ }
+ return false;
}
/**
* Checks an attachment being deleted to see if it's a header or background image.
*
* If true it removes the theme modification which would be pointing at the deleted
- * attachment
+ * attachment.
*
* @access private
* @since 3.0.0
- * @param int $id the attachment id
+ * @since 4.3.0 Also removes `header_image_data`.
+ *
+ * @param int $id The attachment id.
*/
function _delete_attachment_theme_mod( $id ) {
$attachment_image = wp_get_attachment_url( $id );
- $header_image = get_header_image();
+ $header_image = get_header_image();
$background_image = get_background_image();
- if ( $header_image && $header_image == $attachment_image )
+ if ( $header_image && $header_image == $attachment_image ) {
remove_theme_mod( 'header_image' );
+ remove_theme_mod( 'header_image_data' );
+ }
- if ( $background_image && $background_image == $attachment_image )
+ 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
*
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
+ // Prevent retrieve_widgets() from running since Customizer already called it up front
+ if ( get_option( 'theme_switched_via_customizer' ) ) {
+ remove_action( 'after_switch_theme', '_wp_sidebars_changed' );
+ update_option( 'theme_switched_via_customizer', false );
+ }
+
+ if ( $old_theme->exists() ) {
+ /**
+ * Fires on the first WP load after a theme switch if the old theme still exists.
+ *
+ * This action fires multiple times and the parameters differs
+ * according to the context, if the old theme exists or not.
+ * If the old theme is missing, the parameter will be the slug
+ * of the old theme.
+ *
+ * @since 3.3.0
+ *
+ * @param string $old_name Old theme name.
+ * @param WP_Theme $old_theme WP_Theme instance of the old theme.
+ */
+ do_action( 'after_switch_theme', $old_theme->get( 'Name' ), $old_theme );
+ } else {
+ /** This action is documented in wp-includes/theme.php */
do_action( 'after_switch_theme', $stylesheet );
+ }
+ flush_rewrite_rules();
update_option( 'theme_switched', false );
}
/**
* Includes and instantiates the WP_Customize_Manager class.
*
- * Fires when ?wp_customize=on or on wp-admin/customize.php.
+ * Loads the Customizer at plugins_loaded when accessing the customize.php admin
+ * page or when any request includes a wp_customize=on param, either as a GET
+ * query var or as POST data. This param is a signal for whether to bootstrap
+ * the Customizer when WordPress is loading, especially in the Customizer preview
+ * or when making Customizer Ajax requests for widgets or menus.
*
* @since 3.4.0
+ *
+ * @global WP_Customize_Manager $wp_customize
*/
function _wp_customize_include() {
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;
+ require_once ABSPATH . WPINC . '/class-wp-customize-manager.php';
+ $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' ] ) );
'url' => esc_url( admin_url( 'customize.php' ) ),
'isCrossDomain' => $cross_domain,
'browser' => $browser,
+ 'l10n' => array(
+ 'saveAlert' => __( 'The changes you made will be lost if you navigate away from this page.' ),
+ 'mainIframeTitle' => __( 'Customizer' ),
+ ),
);
- $script = 'var _wpCustomizeLoaderSettings = ' . json_encode( $settings ) . ';';
+ $script = 'var _wpCustomizeLoaderSettings = ' . wp_json_encode( $settings ) . ';';
+ $wp_scripts = wp_scripts();
$data = $wp_scripts->get_data( 'customize-loader', 'data' );
if ( $data )
$script = "$data\n$script";
$wp_scripts->add_data( 'customize-loader', 'data', $script );
}
-add_action( 'admin_enqueue_scripts', '_wp_customize_loader_settings' );
/**
- * Returns a URL to load the theme customizer.
+ * Returns a URL to load the Customizer.
*
* @since 3.4.0
*
* @param string $stylesheet Optional. Theme to customize. Defaults to current theme.
- * The theme's stylesheet will be urlencoded if necessary.
+ * The theme's stylesheet will be urlencoded if necessary.
+ * @return string
*/
function wp_customize_url( $stylesheet = null ) {
$url = admin_url( 'customize.php' );
}
/**
- * Prints a script to check whether or not the customizer is supported,
+ * 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.
*
}());
</script>
<?php
-}
\ No newline at end of file
+}
+
+/**
+ * Whether the site is being previewed in the Customizer.
+ *
+ * @since 4.0.0
+ *
+ * @global WP_Customize_Manager $wp_customize Customizer instance.
+ *
+ * @return bool True if the site is being previewed in the Customizer, false otherwise.
+ */
+function is_customize_preview() {
+ global $wp_customize;
+
+ return ( $wp_customize instanceof WP_Customize_Manager ) && $wp_customize->is_preview();
+}