Ticket #20103: 20103.3.diff

wp-includes/class-wp-customize.php

@@ -81 +81 @@
 
                 add_filter( 'template', array( $this, 'get_template' ) );
                 add_filter( 'stylesheet', array( $this, 'get_stylesheet' ) );
-                add_filter( 'pre_option_current_theme', array( $this, 'current_theme' ) );
 
                 // @link: http://core.trac.wordpress.org/ticket/20027
                 add_filter( 'pre_option_stylesheet', array( $this, 'get_stylesheet' ) );
@@ -235 +234 @@
         }
 
         /**
-         * Filter the current theme and return the name of the previewed theme.
-         *
-         * @since 3.4.0
-         *
-         * @return string Theme name.
-         */
-        public function current_theme( $current_theme ) {
-                $themes = get_themes();
-
-                if ( ! $themes )
-                        return $current_theme;
-
-                foreach ( $themes as $theme ) {
-                        if ( $theme['Stylesheet'] == $this->stylesheet && $theme['Template'] == $this->template )
-                                return $theme['Name'];
-                }
-
-                return $current_theme;
-        }
-
-        /**
          * Trigger save action and load customize controls.
          *
          * @since 3.4.0

wp-includes/update.php

@@ -235 +235 @@
         if ( defined( 'WP_INSTALLING' ) )
                 return false;
 
-        if ( !function_exists( 'get_themes' ) )
-                require_once( ABSPATH . 'wp-includes/theme.php' );
-
-        $installed_themes = get_themes( );
+        $installed_themes = wp_get_themes();
         $last_update = get_site_transient( 'update_themes' );
         if ( ! is_object($last_update) )
                 $last_update = new stdClass;
 
         $themes = array();
         $checked = array();
-        $exclude_fields = array('Template Files', 'Stylesheet Files', 'Status', 'Theme Root', 'Theme Root URI', 'Template Dir', 'Stylesheet Dir', 'Description', 'Tags', 'Screenshot');
 
         // Put slug of current theme into request.
         $themes['current_theme'] = get_option( 'stylesheet' );
 
-        foreach ( (array) $installed_themes as $theme_title => $theme ) {
-                $themes[$theme['Stylesheet']] = array();
-                $checked[$theme['Stylesheet']] = $theme['Version'];
+        foreach ( $installed_themes as $theme ) {
+                $checked[ $theme->get_stylesheet() ] = $theme->get('Version');
 
-                $themes[$theme['Stylesheet']]['Name'] = $theme['Name'];
-                $themes[$theme['Stylesheet']]['Version'] = $theme['Version'];
-
-                foreach ( (array) $theme as $key => $value ) {
-                        if ( !in_array($key, $exclude_fields) )
-                                $themes[$theme['Stylesheet']][$key] = $value;
-                }
+                $themes[ $theme->get_stylesheet() ] = array(
+                        'Name'       => $theme->get('Name'),
+                        'Title'      => $theme->get('Name'),
+                        'Version'    => $theme->get('Version'),
+                        'Author'     => $theme->get('Author'),
+                        'Author URI'  => $theme->get('AuthorURI'),
+                        'Template'   => $theme->get_template(),
+                        'Stylesheet' => $theme->get_stylesheet(),
+                );
         }
 
         // Check for update on a different schedule, depending on the page.

wp-includes/class-wp-theme.php

@@ +1 @@
+<?php
+/**
+ * WP_Theme Class
+ *
+ * @package WordPress
+ * @subpackage Theme
+ */
+
+final class WP_Theme implements ArrayAccess {
+
+        /**
+         * Headers for style.css files.
+         *
+         * @static
+         * @access private
+         * @var array
+         */
+        private static $file_headers = array(
+                'Name'        => 'Theme Name',
+                'ThemeURI'    => 'Theme URI',
+                'Description' => 'Description',
+                'Author'      => 'Author',
+                'AuthorURI'   => 'Author URI',
+                'Version'     => 'Version',
+                'Template'    => 'Template',
+                'Status'      => 'Status',
+                'Tags'        => 'Tags',
+                'TextDomain'  => 'Text Domain',
+                'DomainPath'  => 'Domain Path',
+        );
+
+        /**
+         * Absolute path to the theme root, usually wp-content/themes
+         *
+         * @access private
+         * @var string
+         */
+        private $theme_root;
+
+        /**
+         * Header data from the theme's style.css file.
+         *
+         * @access private
+         * @var array
+         */
+        private $headers = array();
+
+        /**
+         * Header data from the theme's style.css file after being sanitized.
+         *
+         * @access private
+         * @var array
+         */
+        private $headers_sanitized;
+
+        /**
+         * Header name from the theme's style.css after being translated.
+         *
+         * Cached due to sorting functions running over the translated name.
+         */
+        private $name_translated;
+
+        /**
+         * Errors encountered when initializing the theme.
+         *
+         * @access private
+         * @var WP_Error
+         */
+        private $errors;
+
+        /**
+         * The directory name of the theme's files, inside the theme root.
+         *
+         * In the case of a child theme, this is directory name of the the child theme.
+         * Otherwise, 'stylesheet' is the same as 'template'.
+         *
+         * @access private
+         * @var string
+         */
+        private $stylesheet;
+
+        /**
+         * The directory name of the theme's files, inside the theme root.
+         *
+         * In the case of a child theme, this is the directory name of the parent theme.
+         * Otherwise, 'template' is the same as 'stylesheet'.
+         *
+         * @access private
+         * @var string
+         */
+        private $template;
+
+        /**
+         * A reference to the parent theme, in the case of a child theme.
+         *
+         * @access private
+         * @var WP_Theme
+         */
+        private $parent;
+
+        /**
+         * Flag for whether the theme's textdomain is loaded.
+         *
+         * @access private
+         * @var bool
+         */
+        private $textdomain_loaded;
+
+        /**
+         * Flag for whether the themes cache bucket should be persistently cached.
+         *
+         * Default is false. Can be set with the wp_cache_themes_persistently filter.
+         *
+         * @access private
+         * @var bool
+         */
+        private static $persistently_cache;
+
+        /**
+         * Expiration time for the themes cache bucket.
+         *
+         * By default the bucket is not cached, so this value is useless.
+         *
+         * @access private
+         * @var bool
+         */
+        private static $cache_expiration = 7200;
+
+        /**
+         * Constructor for WP_Theme.
+         *
+         * @param string $theme_dir Directory of the theme within the theme_root.
+         * @param string $theme_root Theme root.
+         * @param WP_Error|null $child If this theme is a parent theme, the child may be passed for validation purposes.
+         */
+        public function __construct( $theme_dir, $theme_root, $child = null ) {
+
+                // Initialize caching on first run.
+                if ( ! isset( self::$persistently_cache ) ) {
+                        self::$persistently_cache = apply_filters( 'wp_cache_themes_persistently', false );
+                        if ( is_int( self::$persistently_cache ) )
+                                self::$cache_expiration = self::$persistently_cache;
+                        elseif ( ! self::$persistently_cache )
+                                wp_cache_add_non_persistent_groups( 'themes' );
+                }
+
+                $this->theme_root = $theme_root;
+                $this->stylesheet = $theme_dir;
+                $theme_file = $this->stylesheet . '/style.css';
+
+                $cache = $this->cache_get( 'theme' );
+
+                if ( is_array( $cache ) ) {
+                        foreach ( array( 'errors', 'headers', 'template' ) as $key ) {
+                                if ( isset( $cache[ $key ] ) )
+                                        $this->$key = $cache[ $key ];
+                        }
+                        if ( $this->errors )
+                                return;
+                        if ( isset( $cache['theme_root_template'] ) )
+                                $theme_root_template = $cache['theme_root_template'];
+                } elseif ( ! file_exists( $this->theme_root . '/' . $theme_file ) ) {
+                        $this->headers['Name'] = $this->stylesheet;
+                        $this->errors = new WP_Error( 'theme_no_stylesheet', __( 'Stylesheet is missing.' ) );
+                        $this->cache_add( 'theme', array( 'headers' => $this->headers, 'errors' => $this->errors, 'stylesheet' => $this->stylesheet ) );
+                        if ( ! file_exists( $this->theme_root ) ) // Don't cache this one.
+                                $this->errors->add( 'theme_root_missing', __( 'ERROR: The themes directory is either empty or doesn&#8217;t exist. Please check your installation.' ) );
+                        return;
+                } elseif ( ! is_readable( $this->theme_root . '/' . $theme_file ) ) {
+                        $this->headers['Name'] = $this->stylesheet;
+                        $this->errors = new WP_Error( 'theme_stylesheet_not_readable', __( 'Stylesheet is not readable.' ) );
+                        $this->cache_add( 'theme', array( 'headers' => $this->headers, 'errors' => $this->errors, 'stylesheet' => $this->stylesheet ) );
+                        return;
+                } else {
+                        $this->headers = get_file_data( $this->theme_root . '/' . $theme_file, self::$file_headers, 'theme' );
+                }
+
+                if ( ! $this->template = $this->get('Template') ) {
+                        if ( file_exists( $this->theme_root . '/' . $this->stylesheet . '/index.php' ) ) {
+                                $this->template = $this->stylesheet;
+                        } else {
+                                $this->errors = new WP_Error( 'theme_no_index', __( 'Template is missing.' ) );
+                                $this->cache_add( 'theme', array( 'headers' => $this->headers, 'errors' => $this->errors, 'stylesheet' => $this->stylesheet ) );
+                                return;
+                        }
+                }
+
+                // If we got our data from cache, we can trust 'template' as pointing to the right place.
+                if ( ! is_array( $cache ) && $this->template != $this->stylesheet && ! file_exists( $this->theme_root . '/' . $this->template . '/index.php' ) ) {
+                        // If we're in a directory of themes inside /themes, look for the parent nearby.
+                        // wp-content/themes/directory-of-themes/*
+                        $parent_dir = dirname( $this->stylesheet );
+                        if ( '.' != $parent_dir && file_exists( $this->theme_root . '/' . $parent_dir . '/' . $this->template . '/index.php' ) ) {
+                                $this->template = $parent_dir . '/' . $this->template;
+                        } elseif ( ( $directories = search_theme_directories() ) && isset( $directories[ $this->template ] ) ) {
+                                // Look for the template in the search_theme_directories() results, in case it is in another theme root.
+                                // We don't look into directories of themes, just the theme root.
+                                $theme_root_template = $directories[ $this->template ]['theme_root'];
+                        } else {
+                                // Parent theme is missing.
+                                $this->errors = new WP_Error( 'theme_no_parent', sprintf( __( 'The parent theme is missing. Please install the "%s" parent theme.' ), $this->template ) );
+                                $this->cache_add( 'theme', array( 'headers' => $this->headers, 'errors' => $this->errors, 'stylesheet' => $this->stylesheet, 'template' => $this->template ) );
+                                return;
+                        }
+                }
+
+                // @TODO Check for theme name collision. But guess what? We don't care anymore! We only care about clashing matches found in search_theme_directories().
+
+                // Set the parent, if we're a child theme.
+                if ( $this->template != $this->stylesheet ) {
+                        // If we are a parent, then there is a problem. Only two generations allowed! Cancel things out.
+                        if ( is_a( $child, 'WP_Theme' ) && $child->template == $this->stylesheet ) {
+                                $child->parent = null;
+                                $child->errors = new WP_Error( 'theme_parent_invalid', sprintf( __( 'The "%s" theme is not a valid parent theme.' ), $child->template ) );
+                                $child->cache_add( 'theme', array( 'headers' => $child->headers, 'errors' => $child->errors, 'stylesheet' => $child->stylesheet, 'template' => $child->template ) );
+                                // The two themes actually reference each other with the Template header.
+                                if ( $child->stylesheet == $this->template ) {
+                                        $this->errors = new WP_Error( 'theme_parent_invalid', sprintf( __( 'The "%s" theme is not a valid parent theme.' ), $this->template ) );
+                                        $this->cache_add( 'theme', array( 'headers' => $this->headers, 'errors' => $this->errors, 'stylesheet' => $this->stylesheet, 'template' => $this->template ) );
+                                }
+                                return;
+                        }
+                        // Set the parent. Pass the current instance so we can do the crazy checks above and assess errors.
+                        $this->parent = new WP_Theme( $this->template, isset( $theme_root_template ) ? $theme_root_template : $this->theme_root, $this );
+                }
+
+                // We're good. If we didn't retrieve from cache, set it.
+                if ( ! is_array( $cache ) ) {
+                        $cache = array( 'headers' => $this->headers, 'errors' => $this->errors, 'stylesheet' => $this->stylesheet, 'template' => $this->template );
+                        // If the parent theme is in another root, we'll want to cache this. Avoids an entire branch of filesystem calls above.
+                        if ( isset( $theme_root_template ) )
+                                $cache['theme_root_template'] = $theme_root_template;
+                        $this->cache_add( 'theme', $cache );
+                }
+        }
+
+        /**
+         * __isset() magic method for properties formerly returned by current_theme_info()
+         */
+        public function __isset( $offset ) {
+                static $properties = array(
+                        'name', 'title', 'version', 'parent_theme', 'template_dir', 'stylesheet_dir', 'template', 'stylesheet',
+                        'screenshot', 'description', 'author', 'tags', 'theme_root', 'theme_root_uri',
+                );
+
+                return in_array( $offset, $properties );
+        }
+
+        /**
+         * __get() magic method for properties formerly returned by current_theme_info()
+         */
+        public function __get( $offset ) {
+                switch ( $offset ) {
+                        case 'name' :
+                        case 'title' :
+                                return $this->get('Name');
+                        case 'version' :
+                                return $this->get('Version');
+                        case 'parent_theme' :
+                                return $this->parent ? $this->parent->get('Name') : '';
+                        case 'template_dir' :
+                                return $this->get_template_directory();
+                        case 'stylesheet_dir' :
+                                return $this->get_stylesheet_directory();
+                        case 'template' :
+                                return $this->get_template();
+                        case 'stylesheet' :
+                                return $this->get_stylesheet();
+                        case 'screenshot' :
+                                return $this->get_screenshot();
+                        // 'author' and 'description' did not previously return translated data.
+                        case 'description' :
+                                return $this->display('Description');
+                        case 'author' :
+                                return $this->display('Author');
+                        case 'tags' :
+                                return $this->get( 'Tags' );
+                        case 'theme_root' :
+                                return $this->get_theme_root();
+                        case 'theme_root_uri' :
+                                return $this->get_theme_root_uri();
+                }
+        }
+
+        /**
+         * Method to implement ArrayAccess for keys formerly returned by get_themes()
+         */
+    public function offsetSet( $offset, $value ) {}
+
+        /**
+         * Method to implement ArrayAccess for keys formerly returned by get_themes()
+         */
+    public function offsetUnset( $offset ) {}
+
+        /**
+         * Method to implement ArrayAccess for keys formerly returned by get_themes()
+         */
+    public function offsetExists( $offset ) {
+        static $keys = array(
+                'Name', 'Version', 'Status', 'Title', 'Author', 'Author Name', 'Author URI', 'Description',
+                        'Template', 'Stylesheet', 'Template Files', 'Stylesheet Files', 'Template Dir', 'Stylesheet Dir',
+                         'Screenshot', 'Tags', 'Theme Root', 'Theme Root URI', 'Parent Theme',
+                );
+
+        return in_array( $offset, $keys );
+        }
+
+        /**
+         * Method to implement ArrayAccess for keys formerly returned by get_themes()
+         */
+        public function offsetGet( $offset ) {
+        switch ( $offset ) {
+                        case 'Name' :
+                        case 'Version' :
+                        case 'Status' :
+                                return $this->get( $offset );
+                        case 'Title' :
+                                return $this->get('Name');
+                        // Author, Author Name, Author URI, and Description did not
+                        // previously return translated data. We are doing so now.
+                        // Title and Name could have been used as the key for get_themes(),
+                        // so both to remain untranslated for back compatibility.
+                        case 'Author' :
+                                return $this->display( 'Author');
+                        case 'Author Name' :
+                                return $this->display( 'Author', false);
+                        case 'Author URI' :
+                                return $this->display('AuthorURI');
+                        case 'Description' :
+                                return $this->display( 'Description');
+                        case 'Template' :
+                                return $this->get_template();
+                        case 'Stylesheet' :
+                                return $this->get_stylesheet();
+                        case 'Template Files' :
+                                $files = $this->get_files('php');
+                                foreach ( $files as &$file )
+                                        $file = $this->theme_root . '/' . $file;
+                                return $files;
+                        case 'Stylesheet Files' :
+                                $files = $this->get_files('css');
+                                foreach ( $files as &$file )
+                                        $file = $this->theme_root . '/' . $file;
+                                return $files;
+                        case 'Template Dir' :
+                                return $this->get_template_directory();
+                        case 'Stylesheet Dir' :
+                                return $this->get_stylesheet_directory();
+                        case 'Screenshot' :
+                                return $this->get_screenshot();
+                        case 'Tags' :
+                                return $this->get('Tags');
+                        case 'Theme Root' :
+                                return $this->get_theme_root();
+                        case 'Theme Root URI' :
+                                return $this->get_theme_root_uri();
+                        case 'Parent Theme' :
+                                return $this->parent ? $this->parent->get('Name') : '';
+                        default :
+                                return null;
+                }
+        }
+
+        /**
+         * Returns errors property.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return WP_Error|bool WP_Error if there are errors, or false.
+         */
+        public function errors() {
+                return is_wp_error( $this->errors ) ? $this->errors : false;
+        }
+
+        /**
+         * Returns reference to the parent theme.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return WP_Theme|bool Parent theme, or false if the current theme is not a child theme.
+         */
+        public function parent() {
+                return isset( $this->parent ) ? $this->parent : false;
+        }
+
+        /**
+         * Adds theme data to cache.
+         *
+         * Cache entries keyed by the theme and the type of data.
+         *
+         * @access private
+         * @since 3.4.0
+         *
+         * @param string $key Type of data to store (theme, screenshot, screenshot_count, files, headers)
+         * @param string $data Data to store
+         * @return bool Return value from wp_cache_add()
+         */
+        private function cache_add( $key, $data ) {
+                return wp_cache_add( $key . '-' . $this->theme_root . '/' . $this->stylesheet, $data, 'themes', self::$cache_expiration );
+        }
+
+        /**
+         * Gets theme data from cache.
+         *
+         * Cache entries are keyed by the theme and the type of data.
+         *
+         * @access private
+         * @since 3.4.0
+         *
+         * @param string $key Type of data to retrieve (theme, screenshot, screenshot_count, files, headers)
+         * @return mixed Retrieved data
+         */
+        private function cache_get( $key ) {
+                return wp_cache_get( $key . '-' . $this->theme_root . '/' . $this->stylesheet, 'themes' );
+        }
+
+        /**
+         * Clears the cache for the theme.
+         *
+         * @access public
+         * @since 3.4.0
+         */
+        public function cache_delete() {
+                wp_cache_delete( 'theme-' . $this->theme_root . '/' . $this->stylesheet, 'themes' );
+                wp_cache_delete( 'screenshot-' . $this->theme_root . '/' . $this->stylesheet, 'themes' );
+                wp_cache_delete( 'screenshot_count-' . $this->theme_root . '/' . $this->stylesheet, 'themes' );
+                wp_cache_delete( 'files-' . $this->theme_root . '/' . $this->stylesheet, 'themes' );
+                wp_cache_delete( 'headers-' . $this->theme_root . '/' . $this->stylesheet, 'themes' );
+        }
+
+        /**
+         * Gets a theme header.
+         *
+         * The header is sanitized.
+         *
+         * @access public
+         * @since 3.4.0
+         *
+         * @param string $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status.
+         * @return string String on success, false on failure.
+         */
+        public function get( $header ) {
+                if ( ! isset( $this->headers[ $header ] ) )
+                        return false;
+                return $this->sanitize_header( $header, $this->headers[ $header ] );
+
+                if ( ! isset( $this->headers_sanitized ) ) {
+                        $this->headers_sanitized = $this->cache_get( 'headers' );
+                        if ( ! is_array( $this->headers_sanitized ) )
+                                $headers = array();
+                }
+
+                if ( isset( $this->headers_sanitized[ $header ] ) )
+                        return $this->headers_sanitized[ $header ];
+
+                // If an external object cache does not consider themes to be a persistent group, sanitize everything and cache it.
+                if ( self::$persistently_cache ) {
+                        foreach ( array_keys( $this->headers ) as $header )
+                                $this->headers_sanitized[ $header ] = $this->sanitize_header( $header, $this->headers[ $header ] );
+                        $this->cache_add( 'headers', $this->headers_sanitized );
+                } else {
+                        $this->headers_sanitized[ $header ] = $this->sanitize_header( $header, $this->headers[ $header ] );
+                }
+
+                return $this->headers_sanitized[ $header ];
+        }
+
+        /**
+         * Gets a theme header ready for display (marked up, translated).
+         *
+         * @access public
+         * @since 3.4.0
+         *
+         * @param string $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status.
+         * @param bool $markup Optional. Whether to mark up the header. Defaults to true.
+         * @param bool $translate Optional. Whether to translate the header. Defaults to true.
+         * @return string Processed header, false on failure.
+         */
+        public function display( $header, $markup = true, $translate = true ) {
+                $value = $this->get( $header );
+                if ( false === $value || '' === $value )
+                        return $value;
+
+                if ( ! $this->load_textdomain() )
+                        $translate = false;
+
+                if ( $translate )
+                        $value = $this->translate_header( $header, $value );
+
+                if ( $markup )
+                        $value = $this->markup_header( $header, $value, $translate );
+
+                return $value;
+        }
+
+        /**
+         * Sanitize a theme header.
+         *
+         * @param string $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status.
+         * @param string $value Value to sanitize.
+         */
+        private function sanitize_header( $header, $value ) {
+                switch ( $header ) {
+                        case 'Status' :
+                                if ( ! $value ) {
+                                        $value = 'public';
+                                        break;
+                                }
+                                // Fall through otherwise.
+                        case 'Name' :
+                        case 'Author' :
+                                static $header_tags = array(
+                                        'abbr'    => array( 'title' => true ),
+                                        'acronym' => array( 'title' => true ),
+                                        'code'    => true,
+                                        'em'      => true,
+                                        'strong'  => true,
+                                );
+                                $value = wp_kses( $value, $header_tags );
+                                break;
+                        case 'Description' :
+                                static $header_tags_with_a = array(
+                                        'a'       => array( 'href' => true, 'title' => true ),
+                                        'abbr'    => array( 'title' => true ),
+                                        'acronym' => array( 'title' => true ),
+                                        'code'    => true,
+                                        'em'      => true,
+                                        'strong'  => true,
+                                );
+                                $value = wp_kses( $value, $header_tags_with_a );
+                                break;
+                        case 'ThemeURI' :
+                        case 'AuthorURI' :
+                                $value = esc_url( $value );
+                                break;
+                        case 'Tags' :
+                                $value = array_filter( array_map( 'trim', explode( ',', strip_tags( $value ) ) ) );
+                                break;
+                }
+
+                return $value;
+        }
+
+        /**
+         * Mark up a theme header.
+         *
+         * @access private
+         * @since 3.4.0
+         *
+         * @param string $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status.
+         * @param string $value Value to mark up.
+         * @param string $translate Whether the header has been translated.
+         * @return string Value, marked up.
+         */
+        private function markup_header( $header, $value, $translate ) {
+                switch ( $header ) {
+                        case 'Description' :
+                                $value = wptexturize( $value );
+                                break;
+                        case 'Author' :
+                                if ( $this->get('AuthorURI') ) {
+                                        static $attr = null;
+                                        if ( ! isset( $attr ) )
+                                                $attr = esc_attr__( 'Visit author homepage' );
+                                        $value = sprintf( '<a href="%1$s" title="%2$s">%3$s</a>', $this->display( 'AuthorURI', true, $translate ), $attr, $value );
+                                } elseif ( ! $value ) {
+                                        $value = __( 'Anonymous' );
+                                }
+                                break;
+                        case 'Tags' :
+                                static $comma = null;
+                                if ( ! isset( $comma ) ) {
+                                        /* translators: used between list items, there is a space after the comma */
+                                        $comma = __( ', ' );
+                                }
+                                $value = implode( $comma, $value );
+                                break;
+                }
+
+                return $value;
+        }
+
+        /**
+         * Translate a theme header.
+         *
+         * @access private
+         * @since 3.4.0
+         *
+         * @param string $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status.
+         * @param string $value Value to translate.
+         * @return string Translated value.
+         */
+        private function translate_header( $header, $value ) {
+                switch ( $header ) {
+                        case 'Name' :
+                                // Cached for sorting reasons.
+                                if ( isset( $this->name_translated ) )
+                                        return $this->name_translated;
+                                $this->name_translated = translate( $value, $this->get('TextDomain' ) );
+                                return $this->name_translated;
+                        case 'Tags' :
+                                if ( empty( $value ) )
+                                        return $value;
+
+                                static $tags_list;
+                                if ( ! isset( $tags_list ) ) {
+                                        $tags_list = array();
+                                        $feature_list = get_theme_feature_list( false ); // No API
+                                        foreach ( $feature_list as $tags )
+                                                $tags_list += $tags;
+                                }
+
+                                foreach ( $value as &$tag ) {
+                                        if ( isset( $tags_list[ $tag ] ) )
+                                                $tag = $tags_list[ $tag ];
+                                }
+
+                                return $value;
+                                break;
+                        default :
+                                $value = translate( $value, $this->get('TextDomain') );
+                }
+                return $value;
+        }
+
+        /**
+         * The directory name of the theme's "stylesheet" files, inside the theme root.
+         *
+         * In the case of a child theme, this is directory name of the the child theme.
+         * Otherwise, get_stylesheet() is the same as get_template().
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return string Stylesheet
+         */
+        public function get_stylesheet() {
+                return $this->stylesheet;
+        }
+
+        /**
+         * The directory name of the theme's "template" files, inside the theme root.
+         *
+         * In the case of a child theme, this is the directory name of the parent theme.
+         * Otherwise, the get_template() is the same as get_stylesheet().
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return string Template
+         */
+        public function get_template() {
+                return $this->template;
+        }
+
+        /**
+         * Whether a theme is a child theme.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return bool True if a theme is a child theme, false otherwise.
+         */
+        public function is_child_theme() {
+                return $this->template !== $this->stylesheet;
+        }
+
+        /**
+         * Returns the absolute path to the directory of a theme's "stylesheet" files.
+         *
+         * In the case of a child theme, this is the absolute path to the directory
+         * of the child theme's files.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return string Absolute path of the stylesheet directory.
+         */
+        public function get_stylesheet_directory() {
+                if ( $this->errors && in_array( 'theme_root_missing', $this->errors->get_error_codes() ) )
+                        return '';
+
+                return $this->theme_root . '/' . $this->stylesheet;
+        }
+
+        /**
+         * Returns the absolute path to the directory of a theme's "template" files.
+         *
+         * In the case of a child theme, this is the absolute path to the directory
+         * of the parent theme's files.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return string Absolute path of the template directory.
+         */
+        public function get_template_directory() {
+                if ( $this->parent )
+                        $theme_root = $this->parent->theme_root;
+                else
+                        $theme_root = $this->theme_root;
+
+                return $theme_root . '/' . $this->template;
+        }
+
+        /**
+         * Returns the URL to the directory of a theme's "stylesheet" files.
+         *
+         * In the case of a child theme, this is the URL to the directory of the
+         * child theme's files.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return string URL to the stylesheet directory.
+         */
+        public function get_stylesheet_directory_uri() {
+                return $this->theme_root_uri . '/' . $this->stylesheet;
+        }
+
+        /**
+         * Returns the URL to the directory of a theme's "template" files.
+         *
+         * In the case of a child theme, this is the URL to the directory of the
+         * parent theme's files.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return string URL to the template directory.
+         */
+        public function get_template_directory_uri() {
+                if ( $this->parent )
+                        $theme_root_uri = $this->parent->theme_root_uri;
+                else
+                        $theme_root_uri = $this->theme_root;
+
+                return $theme_root . '/' . $this->template;
+        }
+
+        /**
+         * The absolute path to the directory of the theme root.
+         *
+         * This is typically the absolute path to wp-content/themes.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return string Theme root.
+         */
+        public function get_theme_root() {
+                return $this->theme_root;
+        }
+
+        /**
+         * Returns the URL to the directory of the theme root.
+         *
+         * This is typically the absolute path to wp-content/themes.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return string Theme root URI.
+         */
+        public function get_theme_root_uri() {
+                return str_replace( WP_CONTENT_DIR, content_url(), $this->theme_root );
+        }
+
+        /**
+         * Returns the main screenshot file for the theme.
+         *
+         * The main screenshot is called screenshot.png. gif and jpg extensions are also allowed.
+         *
+         * Screenshots for a theme must be in the stylesheet directory. (In the case of a child
+         * theme, a parent theme's screenshots are inherited.)
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @param string $uri Type of URL to include, either relative or absolute. Defaults to relative.
+         * @return mixed Screenshot file. False if the theme does not have a screenshot.
+         */
+        public function get_screenshot( $uri = 'relative' ) {
+                $screenshot = $this->cache_get( 'screenshot' );
+                if ( $screenshot ) {
+                        if ( 'absolute' == $uri )
+                                return $this->get_stylesheet_directory_uri() . '/' . $screenshot;
+                        return $screenshot;
+                } elseif ( 0 === $screenshot ) {
+                        return false;
+                }
+
+                foreach ( array( 'png', 'gif', 'jpg', 'jpeg' ) as $ext ) {
+                        if ( file_exists( $this->get_stylesheet_directory() . "/screenshot.$ext" ) ) {
+                                $this->cache_add( 'screenshot', 'screenshot.' . $ext );
+                                if ( 'absolute' == $uri )
+                                        return $this->get_stylesheet_directory_uri() . '/' . 'screenshot.' . $ext;
+                                return 'screenshot.' . $ext;
+                        }
+                }
+
+                $this->cache_add( 'screenshot', 0 );
+                $this->cache_add( 'screenshot_count', 0 );
+                return false;
+        }
+
+        /**
+         * Returns the number of screenshots for a theme.
+         *
+         * The first screenshot may be called screenshot.png, .gif, or .jpg. Subsequent
+         * screenshots can be screenshot-2.png, screenshot-3.png, etc. The count must
+         * be consecutive for screenshots to be counted, and all screenshots beyond the
+         * initial one must be image/png files.
+         *
+         * @see WP_Theme::get_screenshot()
+         * @since 3.4.0
+         * @access public
+         *
+         * @return int Number of screenshots. Can be 0.
+         */
+        public function get_screenshot_count() {
+                $screenshot_count = $this->cache_get( 'screenshot_count' );
+                if ( is_numeric( $screenshot_count ) )
+                        return $screenshot_count;
+
+                // This will set the screenshot cache.
+                // If there is no screenshot, the screenshot_count cache will also be set.
+                if ( ! $screenshot = $this->get_screenshot() )
+                        return 0;
+
+                $prefix = $this->get_stylesheet() . '/screenshot-';
+                $files = self::scandir( $this->get_stylesheet_directory(), $this->get_stylesheet(), 'png', 0 );
+
+                $screenshot_count = 1;
+                while ( in_array( $prefix . ( $screenshot_count + 1 ) . '.png', $files['png'] ) )
+                        $screenshot_count++;
+
+                $this->cache_add( 'screenshot_count', $screenshot_count );
+                return $screenshot_count;
+        }
+
+        /**
+         * Returns an array of screenshot filenames.
+         *
+         * @see WP_Theme::get_screenshot()
+         * @see WP_Theme::get_screenshot_count()
+         * @since 3.4.0
+         * @access public
+         *
+         * @return array Screenshots.
+         */
+        public function get_screenshots() {
+                if ( ! $count = $this->get_screenshot_count() )
+                        return array();
+
+                $screenshots = array( $this->get_screenshot() );
+                for ( $i = 2; $i <= $count; $i++ )
+                        $screenshots[] = 'screenshot-' . $i . '.png';
+                return $screenshots;
+        }
+
+        /**
+         * Return files in the template and stylesheet directories.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @param string|null $type Optional. Type of files to return, either 'php' or 'css'. Defaults to null, for both.
+         * @return array If a specific $type is requested, returns an array of PHP files. If no $type is requested,
+         *      returns an array, with the keys being the file types, and the values being an array of files for those type.
+         */
+        public function get_files( $type = null, $include_parent_files = false ) {
+                $files = $this->cache_get( 'files' );
+                if ( ! is_array( $files ) ) {
+                        if ( $include_parent_files || ! $this->is_child_theme() )
+                                // Template files can be one level down for the purposes of the theme editor, so this should be $depth = 1.
+                                // Todo: We ignore this for now, but this is why the branching is weird.
+                                $files = (array) self::scandir( $this->get_template_directory(), $this->get_template(), array( 'php', 'css' ) );
+                        if ( $this->is_child_theme() )
+                                $files = array_merge_recursive( $files, (array) self::scandir( $this->get_stylesheet_directory(), $this->get_stylesheet(), array( 'php', 'css' ) ) );
+                        foreach ( $files as &$group )
+                                sort( $group );
+                        $this->cache_add( 'files', $files );
+                }
+
+                if ( null === $type )
+                        return $files;
+                elseif ( isset( $files[ $type ] ) )
+                        return $files[ $type ];
+
+                return array();
+        }
+
+        public function get_page_templates() {
+                // If you screw up your current theme and we invalidate your parent, most things still work. Let it slide.
+                if ( $this->errors() && $this->errors()->get_error_codes() !== array( 'theme_parent_invalid' ) )
+                        return array();
+
+                $page_templates = $this->cache_get( 'page_templates' );
+                if ( is_array( $page_templates ) )
+                        return $page_templates;
+                $page_templates = array();
+
+                $files = (array) self::scandir( $this->get_template_directory(), $this->get_template_directory(), 'php' );
+                if ( $this->is_child_theme() )
+                        $files = array_merge_recursive( $files, (array) self::scandir( $this->get_stylesheet_directory(), $this->get_stylesheet_directory(), 'php' ) );
+
+                foreach ( $files['php'] as $file ) {
+                        $headers = get_file_data( $file, array( 'Name' => 'Template Name' ) );
+                        if ( empty( $headers['Name'] ) )
+                                continue;
+                        $page_templates[ $headers['Name'] ] = basename( $file );
+                }
+
+                $this->cache_add( 'page_templates', $page_templates );
+                return $page_templates;
+        }
+
+        /**
+         * Scans a directory for files of a certain extension.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @param string $path Absolute path to search.
+         * @param string $relative_path The basename of the absolute path. Used to control the returned path
+         *      for the found files, particularly when this function recurses to lower depths.
+         * @param array|string $extensions Array of extensions to find, or string of a single extension.
+         * @depth int How deep to search for files. Optional, defaults to a flat scan (0 depth).
+         */
+        private static function scandir( $path, $relative_path, $extensions, $depth = 0 ) {
+                if ( is_array( $extensions ) )
+                        $extensions = implode( '|', $extensions );
+
+                if ( ! is_dir( $path ) )
+                        return false;
+
+                $results = scandir( $path );
+                $files = array();
+
+                foreach ( $results as $result ) {
+                        if ( '.' == $result || '..' == $result )
+                                continue;
+                        if ( is_dir( $path . '/' . $result ) ) {
+                                if ( ! $depth )
+                                        continue;
+                                $found = self::scandir( $path . '/' . $result, $relative_path . '/' . $result, $extensions, $depth - 1 );
+                                $files = array_merge_recursive( $files, $found );
+                        } elseif ( preg_match( '~\.(' . $extensions . ')$~', $result, $match ) ) {
+                                if ( ! isset( $files[ $match[1] ] ) )
+                                        $files[ $match[1] ] = array( $relative_path . '/'. $result );
+                                else
+                                        $files[ $match[1] ][] = $relative_path . '/' . $result;
+                        }
+                }
+                return $files;
+        }
+
+        /**
+         * Loads the theme's textdomain.
+         *
+         * Translation files are not inherited from the parent theme. Todo: if this fails for the
+         * child theme, it should probably try to load the parent theme's translations.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return True if the textdomain was successfully loaded or has already been loaded. False if
+         *      no textdomain was specified in the file headers, or if the domain could not be loaded.
+         */
+        public function load_textdomain() {
+                if ( isset( $this->textdomain_loaded ) )
+                        return $this->textdomain_loaded;
+
+                $textdomain = $this->get('TextDomain');
+                if ( ! $textdomain ) {
+                        $this->textdomain_loaded = false;
+                        return false;
+                }
+
+                if ( is_textdomain_loaded( $textdomain ) ) {
+                        $this->textdomain_loaded = true;
+                        return true;
+                }
+
+                $path = $this->get_stylesheet_directory();
+                if ( $domainpath = $this->get('DomainPath') )
+                        $path .= $domainpath;
+
+                $this->textdomain_loaded = load_theme_textdomain( $textdomain, $path );
+                return $this->textdomain_loaded;
+        }
+
+        /**
+         * Whether the theme is allowed (multisite only).
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @param string $check Optional. Whether to check only the 'network'-wide settings, the 'site'
+         *      settings, or 'both'. Defaults to 'both'.
+         * @param int $blog_id Optional. Ignored if only network-wide settings are checked. Defaults to current blog.
+         * @return bool Whether the theme is allowed for the network. Returns true in single-site.
+         */
+        public function is_allowed( $check = 'both', $blog_id = null ) {
+                if ( ! is_multisite() )
+                        return true;
+
+                if ( 'both' == $check || 'network' == $check ) {
+                        $allowed = self::get_allowed_on_network();
+                        if ( ! empty( $allowed[ $this->get_stylesheet() ] ) )
+                                return true;
+                }
+
+                if ( 'both' == $check || 'site' == $check ) {
+                        $allowed = self::get_allowed_on_site( $blog_id );
+                        if ( ! empty( $allowed[ $this->get_stylesheet() ] ) )
+                                return true;
+                }
+
+                return false;
+        }
+
+        /**
+         * Returns array of stylesheet names of themes allowed on the site or network.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @param int $blog_id Optional. Defaults to current blog.
+         * @return array Array of stylesheet names.
+         */
+        public static function get_allowed( $blog_id = null ) {
+                return array_merge( self::get_allowed_on_network(), self::get_allowed_on_site( $blog_id ) );
+        }
+
+        /**
+         * Returns array of stylesheet names of themes allowed on the network.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @return array Array of stylesheet names.
+         */
+        public static function get_allowed_on_network() {
+                static $allowed_themes;
+                if ( ! isset( $allowed_themes ) )
+                        $allowed_themes = (array) get_site_option( 'allowedthemes' );
+                return $allowed_themes;
+        }
+
+        /**
+         * Returns array of stylesheet names of themes allowed on the site.
+         *
+         * @since 3.4.0
+         * @access public
+         *
+         * @param int $blog_id Optional. Defaults to current blog.
+         * @return array Array of stylesheet names.
+         */
+        public static function get_allowed_on_site( $blog_id = null ) {
+                static $allowed_themes = array();
+                if ( ! $blog_id )
+                        $blog_id = get_current_blog_id();
+
+                if ( ! isset( $allowed_themes[ $blog_id ] ) ) {
+                        if ( $blog_id == get_current_blog_id() )
+                                $allowed_themes[ $blog_id ] = (array) get_option( 'allowedthemes' );
+                        else
+                                $allowed_themes[ $blog_id ] = (array) get_blog_option( $blog_id, 'allowedthemes' );
+                }
+
+                return $allowed_themes[ $blog_id ];
+        }
+
+        /**
+         * Sort themes by name.
+         */
+        public static function sort_by_name( &$themes ) {
+                if ( 0 === strpos( get_locale(), 'en_' ) ) {
+                        uasort( $themes, array( 'WP_Theme', '_name_sort' ) );
+                } else {
+                        uasort( $themes, array( 'WP_Theme', '_name_sort_i18n' ) );
+                }
+        }
+
+        /**
+         * Callback function for usort() to naturally sort themes by name.
+         *
+         * Accesses the Name header directly from the class for maximum speed.
+         * Would choke on HTML but we don't care enough to slow it down with strip_tags().
+         *
+         * @since 3.4.0
+         * @access public
+         */
+        private static function _name_sort( $a, $b ) {
+                return strnatcasecmp( $a->headers['Name'], $b->headers['Name'] );
+        }
+
+        /**
+         * Name sort (with translation).
+         *
+         * @since 3.4.0
+         * @access public
+         */
+        private static function _name_sort_i18n( $a, $b ) {
+                // Don't mark up; Do translate.
+                return strnatcasecmp( $a->display( 'Name', false, true ), $b->display( 'Name', false, true ) );
+        }
+}
+ No newline at end of file

wp-includes/theme.php

@@ -7 +7 @@
  */
 
 /**
+ * Returns an array of WP_Theme objects based on the arguments.
+ *
+ * Despite advances over get_themes(), this function is still quite expensive, and grows
+ * linearly with additional themes. Stick to wp_get_theme() if possible.
+ *
+ * @since 3.4.0
+ *
+ * @param array $args Arguments. Currently 'errors' (defaults to false), 'allowed'
+ *      (true, false; null for either; defaults to null; only applies to multisite), and 'blog_id'
+ *      (defaults to current blog; used to find allowed themes; only applies to multisite).
+ * @return Array of WP_Theme objects.
+ */
+function wp_get_themes( $args = array() ) {
+        $defaults = array( 'errors' => false, 'allowed' => null, 'blog_id' => 0 );
+        $args = wp_parse_args( $args, $defaults );
+
+        static $_themes;
+        if ( ! isset( $_themes ) ) {
+                $theme_data = search_theme_directories();
+                // 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();
+                $current_theme_root = get_raw_theme_root( $current_theme );
+                foreach ( $theme_data as $theme_slug => $data ) {
+                        if ( $current_theme == $theme_slug && $current_theme_root != $data['theme_root'] )
+                                $_themes[ $theme_slug ] = new WP_Theme( $theme_slug, $current_theme_root );
+                        else
+                                $_themes[ $theme_slug ] = new WP_Theme( $theme_slug, $data['theme_root'] );
+                }
+        }
+
+        $themes = $_themes;
+
+        if ( null !== $args['errors'] ) {
+                foreach ( $themes as $theme_slug => $theme ) {
+                        if ( $theme->errors() != $args['errors'] )
+                                unset( $themes[ $theme_slug ] );
+                }
+        }
+
+        if ( is_multisite() && null !== $args['allowed'] ) {
+                if ( $allowed = $args['allowed'] ) {
+                        $allowed = 'network' == $allowed || 'site' == $allowed ? $allowed : 'both';
+                        $themes = array_intersect_key( $themes, WP_Theme::get_allowed( $allowed, $args['blog_id'] ) );
+                } else {
+                        $themes = array_diff_key( $themes, WP_Theme::get_allowed( 'both', $args['blog_id'] ) );
+                }
+        }
+
+        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 Theme root to look in. Optional. If not specified, get_raw_theme_root()
+ *      is used for the $stylesheet provided (or current theme).
+ * @return WP_Theme
+ */
+function wp_get_theme( $stylesheet = null, $theme_root = null ) {
+        if ( empty( $stylesheet ) )
+                $stylesheet = get_stylesheet();
+
+        if ( empty( $theme_root ) )
+                $theme_root = get_raw_theme_root( $stylesheet );
+
+        return new WP_Theme( $stylesheet, $theme_root );
+}
+
+/**
  * Whether a child theme is in use.
  *
  * @since 3.0.0
@@ -247 +320 @@
 }
 
 /**
- * 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 $wp_themes;
-
-        if ( !$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;
-                }
-
-                $parent_template = $template;
-
-                if ( empty($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 {
-                                        if ( empty( $parent_template) )
-                                                $wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => __('Template is missing.'), 'error' => 'no_template');
-                                        else
-                                                $wp_broken_themes[$name] = array('Name' => $name, 'Title' => $title, 'Description' => sprintf( __('The parent theme is missing. Please install the "%s" parent theme.'),  $parent_template ), 'error' => 'no_parent', 'parent' => $parent_template );
-                                        continue;
-                                }
-
-                        }
-                } else {
-                        $template_directory = trim( $theme_root . '/' . $template );
-                }
-
-                $stylesheet_files = array();
-                $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 = $template_directory;
-                $stylesheet_dir = $theme_root . '/' . $stylesheet;
-
-                if ( empty($template_dir) )
-                        $template_dir = '/';
-                if ( empty($stylesheet_dir) )
-                        $stylesheet_dir = '/';
-
-                // Check for theme name collision. This occurs if a theme is copied to
-                // a new theme directory and the theme header is not updated. Whichever
-                // theme is first keeps the name. Subsequent themes get a suffix applied.
-                // Default themes themes always trump their pretenders.
-                if ( isset($wp_themes[$name]) ) {
-                        $trump_cards = array(
-                                'classic'      => 'WordPress Classic',
-                                'default'      => 'WordPress Default',
-                                'twentyten'    => 'Twenty Ten',
-                                'twentyeleven' => 'Twenty Eleven',
-                                'twentytwelve' => 'Twenty Twelve',
-                        );
-                        if ( isset( $trump_cards[ $stylesheet ] ) && $name == $trump_cards[ $stylesheet ] ) {
-                                // If another theme has claimed to be one of our default themes, move
-                                // them aside.
-                                $suffix = $wp_themes[$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,
-                        'Author Name' => $theme_data['AuthorName'],
-                        'Author URI' => $theme_data['AuthorURI'],
-                        'Version' => $version,
-                        'Template' => $template,
-                        'Stylesheet' => $stylesheet,
-                        'Template Files' => $template_files,
-                        'Stylesheet Files' => $stylesheet_files,
-                        'Template Dir' => $template_dir,
-                        'Stylesheet Dir' => $stylesheet_dir,
-                        'Status' => $theme_data['Status'],
-                        'Screenshot' => $screenshot,
-                        'Tags' => $theme_data['Tags'],
-                        'Theme Root' => $theme_root,
-                        'Theme Root URI' => str_replace( WP_CONTENT_DIR, content_url(), $theme_root ),
-                );
-        }
-
-        unset($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
@@ -479 +334 @@
 
         $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(); // Regenerated 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 ( is_array( $themes ) && 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();
-        $current_theme = 'Twenty Eleven';
-
-        if ( $themes ) {
-                $theme_names = array_keys( $themes );
-                $current_template = get_option( 'template' );
-                $current_stylesheet = get_option( 'stylesheet' );
-
-                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;
+        $theme = wp_get_theme();
+        return $theme->get('Name');
 }
 
 /**
@@ -571 +384 @@
  * @return array Valid themes found
  */
 function search_theme_directories() {
-        global $wp_theme_directories, $wp_broken_themes;
+        global $wp_theme_directories;
         if ( empty( $wp_theme_directories ) )
                 return false;
 
-        $theme_files = array();
-        $wp_broken_themes = array();
+        static $found_themes;
+        if ( isset( $found_themes ) )
+                return $found_themes;
+        $found_themes = array();
 
+        if ( apply_filters( 'wp_cache_themes_persistently', false ) ) {
+                $cached_roots = get_site_transient( 'theme_roots' );
+                if ( is_array( $cached_roots ) ) {
+                        foreach ( $cached_roots as $theme_dir => $theme_root ) {
+                                $found_themes[ $theme_dir ] = array(
+                                        'theme_file' => $theme_dir . '/style.css',
+                                        'theme_root' => $theme_root,
+                                );
+                        }
+                        return $found_themes;
+                }
+        }
+
         /* 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 )
+                // Start with directories in the root of the current theme directory.
+                $dirs = @ scandir( $theme_root );
+                if ( ! $dirs )
                         return false;
-
-                while ( ($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;
-                                        }
+                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 ) || $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,
+                                        );
+                                        $found_theme = true;
                                 }
-                                @closedir($stylish_dir);
+                                // 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 ( !$found_stylesheet ) { // look for themes in that dir
-                                        $subdir = "$theme_root/$theme_dir";
-                                        $subdir_name = $theme_dir;
-                                        $theme_subdirs = @opendir( $subdir );
+        asort( $found_themes );
 
-                                        $found_subdir_themes = false;
-                                        while ( ($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;
+        $theme_roots = array();
+        foreach ( $found_themes as $theme_dir => $theme_data ) {
+                $theme_roots[ $theme_dir ] = $theme_data['theme_root'];
+        }
 
-                                                        $stylish_dir = @opendir($subdir . '/' . $theme_subdir);
-                                                        $found_stylesheet = false;
+        if ( $theme_roots != get_site_transient( 'theme_roots' ) )
+                set_site_transient( 'theme_roots', $theme_roots, 7200 ); // cache for two hours
 
-                                                        while ( ($theme_file = readdir($stylish_dir)) !== false ) {
-                                                                if ( $theme_file == 'style.css' ) {
-                                                                        $theme_files["$theme_dir/$theme_subdir"] = array( 'theme_file' => $subdir_name . '/' . $theme_subdir . '/' . $theme_file, 'theme_root' => $theme_root );
-                                                                        $found_stylesheet = true;
-                                                                        $found_subdir_themes = true;
-                                                                        break;
-                                                                }
-                                                        }
-                                                        @closedir($stylish_dir);
-                                                }
-                                        }
-                                        @closedir($theme_subdirs);
-                                        if ( !$found_subdir_themes )
-                                                $wp_broken_themes[$theme_dir] = array('Name' => $theme_dir, 'Title' => $theme_dir, 'Description' => __('Stylesheet is missing.'));
-                                }
-                        }
-                }
-                @closedir( $themes_dir );
-        }
-        return $theme_files;
+        return $found_themes;
 }
 
 /**

wp-includes/deprecated.php

@@ -2906 +2906 @@
  */
 function debug_fclose( $fp ) {
         _deprecated_function( __FUNCTION__, 'error_log()' );
+}
+
+/**
+ * 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.
+ *
+ * @since 1.5.0
+ * @global array $wp_themes Stores the working themes.
+ *
+ * @return array Theme list with theme data.
+ */
+function get_themes() {
+        _deprecated_function( __FUNCTION__, '3.4', 'wp_get_themes()' );
+
+        global $wp_themes;
+        if ( isset( $wp_themes ) )
+                return $wp_themes;
+
+        $themes = wp_get_themes();
+        $wp_themes = array();
+
+        foreach ( $themes as $theme ) {
+                $wp_themes[ $theme->get('Name') ] = $theme;
+        }
+
+        return $wp_themes;
+}
+
+/**
+ * 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( $theme ) {
+        _deprecated_function( __FUNCTION__, '3.4', 'wp_get_theme($stylesheet)' );
+
+        $themes = get_themes();
+        if ( is_array( $themes ) && array_key_exists( $theme, $themes ) )
+                return $themes[$theme];
+        return null;
 }
+ No newline at end of file

wp-settings.php

@@ -112 +112 @@
 require( ABSPATH . WPINC . '/capabilities.php' );
 require( ABSPATH . WPINC . '/query.php' );
 require( ABSPATH . WPINC . '/theme.php' );
+require( ABSPATH . WPINC . '/class-wp-theme.php' );
 require( ABSPATH . WPINC . '/template.php' );
 require( ABSPATH . WPINC . '/user.php' );
 require( ABSPATH . WPINC . '/meta.php' );

wp-admin/includes/ms-deprecated.php

@@ -64 +64 @@
         _deprecated_function(__FUNCTION__, '3.0', 'is_network_only_plugin()' );
         return is_network_only_plugin( $file );
 }
+
+function get_site_allowed_themes() {
+        _deprecated_function( __FUNCTION__, '3.4', 'WP_Theme::get_allowed_on_network()' );
+        return array_map( 'intval', WP_Theme::get_allowed_on_network() );
+}
+
+function wpmu_get_blog_allowedthemes( $blog_id = 0 ) {
+        _deprecated_function( __FUNCTION__, '3.4', 'WP_Theme::get_allowed_on_site()' );
+        return array_map( 'intval', WP_Theme::get_allowed_on_site( $blog_id ) );
+}
+ No newline at end of file

wp-admin/includes/update.php

@@ -217 +217 @@
 }
 
 function get_theme_updates() {
-        $themes = get_themes();
+        $themes = wp_get_themes();
         $current = get_site_transient('update_themes');
         $update_themes = array();
 
-        foreach ( $themes as $theme ) {
-                $theme = (object) $theme;
-                if ( isset($current->response[ $theme->Stylesheet ]) ) {
-                        $update_themes[$theme->Stylesheet] = $theme;
-                        $update_themes[$theme->Stylesheet]->update = $current->response[ $theme->Stylesheet ];
-                }
+        foreach ( $current->response as $stylesheet => $data ) {
+                $update_themes[ $stylesheet ] = wp_get_theme( $stylesheet );
+                $update_themes[ $stylesheet ]->update = $data;
         }
 
         return $update_themes;

wp-admin/includes/upgrade.php

@@ -459 +459 @@
         if ( $wp_current_db_version < 19389 )
                 upgrade_330();
 
-        if ( $wp_current_db_version < 19799 )
+        if ( $wp_current_db_version < 20002 )
                 upgrade_340();
 
         maybe_disable_automattic_widgets();
@@ -1154 +1154 @@
                 $wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key IN ('show_admin_bar_admin', 'plugins_last_view')" );
         }
 
-        // 3.3-beta. Can remove before release.
-        if ( $wp_current_db_version > 18715 && $wp_current_db_version < 19389
-                && is_main_site() && ! defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) )
-                        delete_metadata( 'user', 0, 'dismissed_wp_pointers', '', true );
-
         if ( $wp_current_db_version >= 11548 )
                 return;
 
@@ -1235 +1230 @@
                 $wpdb->query("ALTER TABLE $wpdb->comments DROP INDEX comment_approved");
                 $wpdb->show_errors();
         }
+
+        if ( $wp_current_db_version < 20002 && is_main_site() && ! defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
+                $wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key = 'themes_last_view'" );
+        }
 }
 
 /**

wp-admin/includes/class-wp-ms-themes-list-table.php

@@ -15 +15 @@
         function __construct() {
                 global $status, $page;
 
-                $default_status = get_user_option( 'themes_last_view' );
-                if ( empty( $default_status ) )
-                        $default_status = 'all';
-                $status = isset( $_REQUEST['theme_status'] ) ? $_REQUEST['theme_status'] : $default_status;
-                if ( !in_array( $status, array( 'all', 'enabled', 'disabled', 'upgrade', 'search' ) ) )
+                $status = isset( $_REQUEST['theme_status'] ) ? $_REQUEST['theme_status'] : 'all';
+                if ( ! in_array( $status, array( 'all', 'enabled', 'disabled', 'upgrade', 'search' ) ) )
                         $status = 'all';
-                if ( $status != $default_status && 'search' != $status )
-                        update_user_meta( get_current_user_id(), 'themes_last_view', $status );
 
                 $page = $this->get_pagenum();
 
@@ -55 +50 @@
         }
 
         function prepare_items() {
-                global $status, $themes, $totals, $page, $orderby, $order, $s;
+                global $status, $totals, $page, $orderby, $order, $s;
 
                 wp_reset_vars( array( 'orderby', 'order', 's' ) );
 
                 $themes = array(
-                        'all' => apply_filters( 'all_themes', get_themes() ),
+                        'all' => apply_filters( 'all_themes', wp_get_themes() ),
                         'search' => array(),
                         'enabled' => array(),
                         'disabled' => array(),
                         'upgrade' => array()
                 );
 
-                $site_allowed_themes = get_site_allowed_themes();
-                if ( !$this->is_site_themes ) {
-                        $allowed_themes = $site_allowed_themes;
-                        $themes_per_page = $this->get_items_per_page( 'themes_network_per_page' );
-                } else {
-                        $allowed_themes = wpmu_get_blog_allowedthemes( $this->site_id );
+                if ( $this->is_site_themes ) {
                         $themes_per_page = $this->get_items_per_page( 'site_themes_network_per_page' );
+                        $allowed_where = 'site';
+                } else {
+                        $themes_per_page = $this->get_items_per_page( 'themes_network_per_page' );
+                        $allowed_where = 'network';
                 }
 
-                $current = get_site_transient( 'update_themes' );
+                $current = current_user_can( 'update_themes' ) && ! $this->is_site_themes && get_site_transient( 'update_themes' );
 
                 foreach ( (array) $themes['all'] as $key => $theme ) {
-                        $theme_key = $theme['Stylesheet'];
-
-                        if ( isset( $allowed_themes [ $theme_key ] ) )  {
-                                $themes['all'][$key]['enabled'] = true;
-                                $themes['enabled'][$key] = $themes['all'][$key];
+                        if ( $this->is_site_themes && $theme->is_allowed( 'network' ) ) {
+                                unset( $themes['all'][ $key ] );
+                                continue;
                         }
-                        else {
-                                $themes['all'][$key]['enabled'] = false;
-                                $themes['disabled'][$key] = $themes['all'][$key];
-                        }
-                        if ( isset( $current->response[ $theme['Template'] ] ) )
-                                $themes['upgrade'][$key] = $themes['all'][$key];
 
-                        if ( $this->is_site_themes && isset( $site_allowed_themes[$theme_key] ) ) {
-                                unset( $themes['all'][$key] );
-                                unset( $themes['enabled'][$key] );
-                                unset( $themes['disabled'][$key] );
-                        }
+                        $filter = $theme->is_allowed( $allowed_where, $this->site_id ) ? 'enabled' : 'disabled';
+                        $themes[ $filter ][ $key ] = $themes['all'][ $key ];
+
+                        if ( $current && isset( $current->response[ $key ] ) )
+                                $themes['upgrade'][ $key ] = $themes['all'][ $key ];
                 }
 
-                if ( !current_user_can( 'update_themes' ) || $this->is_site_themes )
-                        $themes['upgrade'] = array();
-
                 if ( $s ) {
                         $status = 'search';
                         $themes['search'] = array_filter( $themes['all'], array( &$this, '_search_callback' ) );
@@ -115 +98 @@
                         $status = 'all';
 
                 $this->items = $themes[ $status ];
+                WP_Theme::sort_by_name( $this->items );
+
+                $this->has_items = ! empty( $themes['all'] );
                 $total_this_page = $totals[ $status ];
 
                 if ( $orderby ) {
                         $orderby = ucfirst( $orderby );
                         $order = strtoupper( $order );
 
-                        uasort( $this->items, array( &$this, '_order_callback' ) );
+                        if ( $orderby == 'Name' ) {
+                                if ( 'ASC' == $order )
+                                        $this->items = array_reverse( $this->items );
+                        } else {
+                                uasort( $this->items, array( &$this, '_order_callback' ) );
+                        }
                 }
 
                 $start = ( $page - 1 ) * $themes_per_page;
 
                 if ( $total_this_page > $themes_per_page )
-                        $this->items = array_slice( $this->items, $start, $themes_per_page );
+                        $this->items = array_slice( $this->items, $start, $themes_per_page, true );
 
                 $this->set_pagination_args( array(
                         'total_items' => $total_this_page,
@@ -140 +131 @@
                 if ( is_null( $term ) )
                         $term = stripslashes( $_REQUEST['s'] );
 
-                $search_fields = array( 'Name', 'Title', 'Description', 'Author', 'Author Name', 'Author URI', 'Template', 'Stylesheet' );
-                foreach ( $search_fields as $field )
-                        if ( stripos( $theme[ $field ], $term ) !== false )
+                foreach ( array( 'Name', 'Description', 'Author', 'Author', 'AuthorURI' ) as $field ) {
+                        // Don't mark up; Do translate.
+                        if ( false !== stripos( $theme->display( $field, false, true ), $term ) )
                                 return true;
+                }
 
+                if ( false !== stripos( $theme->get_stylesheet(), $term ) )
+                        return true;
+
+                if ( false !== stripos( $theme->get_template(), $term ) )
+                        return true;
+
                 return false;
         }
 
+        // Not used by any core columns.
         function _order_callback( $theme_a, $theme_b ) {
                 global $orderby, $order;
 
-                $a = $theme_a[$orderby];
-                $b = $theme_b[$orderby];
+                $a = $theme_a[ $orderby ];
+                $b = $theme_b[ $orderby ];
 
                 if ( $a == $b )
                         return 0;
@@ -164 +163 @@
         }
 
         function no_items() {
-                global $themes;
-
-                if ( !empty( $themes['all'] ) )
+                if ( ! $$this->has_items )
                         _e( 'No themes found.' );
                 else
                         _e( 'You do not appear to have any themes available at this time.' );
@@ -264 +261 @@
 
                 $context = $status;
 
-                if ( $this->is_site_themes )
+                if ( $this->is_site_themes ) {
                         $url = "site-themes.php?id={$this->site_id}&";
-                else
+                        $allowed = $theme->is_allowed( 'site', $this->site_id );
+                } else {
                         $url = 'themes.php?';
+                        $allowed = $theme->is_allowed( 'network' );
+                }
 
                 // preorder
                 $actions = array(
@@ -277 +277 @@
                         'delete' => ''
                 );
 
-                $theme_key = $theme['Stylesheet'];
+                $theme_key = $theme->get_stylesheet();
 
-                if ( empty( $theme['enabled'] ) )
+                if ( ! $allowed )
                         $actions['enable'] = '<a href="' . esc_url( wp_nonce_url($url . 'action=enable&amp;theme=' . $theme_key . '&amp;paged=' . $page . '&amp;s=' . $s, 'enable-theme_' . $theme_key) ) . '" title="' . esc_attr__('Enable this theme') . '" class="edit">' . ( $this->is_site_themes ? __( 'Enable' ) : __( 'Network Enable' ) ) . '</a>';
                 else
                         $actions['disable'] = '<a href="' . esc_url( wp_nonce_url($url . 'action=disable&amp;theme=' . $theme_key . '&amp;paged=' . $page . '&amp;s=' . $s, 'disable-theme_' . $theme_key) ) . '" title="' . esc_attr__('Disable this theme') . '">' . ( $this->is_site_themes ? __( 'Disable' ) : __( 'Network Disable' ) ) . '</a>';
 
                 if ( current_user_can('edit_themes') )
-                        $actions['edit'] = '<a href="' . esc_url('theme-editor.php?theme=' . urlencode( $theme['Name'] )) . '" title="' . esc_attr__('Open this theme in the Theme Editor') . '" class="edit">' . __('Edit') . '</a>';
+                        $actions['edit'] = '<a href="' . esc_url('theme-editor.php?theme=' .  $theme_key ) . '" title="' . esc_attr__('Open this theme in the Theme Editor') . '" class="edit">' . __('Edit') . '</a>';
 
-                if ( empty( $theme['enabled'] ) && current_user_can( 'delete_themes' ) && ! $this->is_site_themes && $theme_key != get_option( 'stylesheet' ) && $theme_key != get_option( 'template' ) )
+                if ( ! $allowed && current_user_can( 'delete_themes' ) && ! $this->is_site_themes && $theme_key != get_option( 'stylesheet' ) && $theme_key != get_option( 'template' ) )
                         $actions['delete'] = '<a href="' . esc_url( wp_nonce_url( 'themes.php?action=delete-selected&amp;checked[]=' . $theme_key . '&amp;theme_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'bulk-themes' ) ) . '" title="' . esc_attr__( 'Delete this theme' ) . '" class="delete">' . __( 'Delete' ) . '</a>';
 
                 $actions = apply_filters( 'theme_action_links', array_filter( $actions ), $theme_key, $theme, $context );
                 $actions = apply_filters( "theme_action_links_$theme_key", $actions, $theme_key, $theme, $context );
 
-                $class = empty( $theme['enabled'] ) ? 'inactive' : 'active';
-                $checkbox_id = "checkbox_" . md5($theme['Name']);
-                $checkbox = "<input type='checkbox' name='checked[]' value='" . esc_attr( $theme_key ) . "' id='" . $checkbox_id . "' /><label class='screen-reader-text' for='" . $checkbox_id . "' >" . __('Select') . " " . $theme['Name'] . "</label>";
+                $class = ! $allowed ? 'inactive' : 'active';
+                $checkbox_id = "checkbox_" . md5( $theme->get('Name') );
+                $checkbox = "<input type='checkbox' name='checked[]' value='" . esc_attr( $theme_key ) . "' id='" . $checkbox_id . "' /><label class='screen-reader-text' for='" . $checkbox_id . "' >" . __('Select') . " " . $theme->display('Name') . "</label>";
 
-                $description = '<p>' . $theme['Description'] . '</p>';
-                $theme_name = $theme['Name'];
+                $description = '<p>' . $theme->display( 'Description' ) . '</p>';
 
-                $id = sanitize_title( $theme_name );
+                $id = sanitize_html_class( $theme->get_stylesheet() );
 
                 echo "<tr id='$id' class='$class'>";
 
@@ -316 +315 @@
                                         echo "<th scope='row' class='check-column'>$checkbox</th>";
                                         break;
                                 case 'name':
-                                        echo "<td class='theme-title'$style><strong>$theme_name</strong>";
+                                        echo "<td class='theme-title'$style><strong>" . $theme->display('Name') . "</strong>";
                                         echo $this->row_actions( $actions, true );
                                         echo "</td>";
                                         break;
                                 case 'description':
                                         echo "<td class='column-description desc'$style>
-                                                <div class='theme-description'>$description</div>
+                                                <div class='theme-description'>" . $theme->display( 'Description' ) . "</div>
                                                 <div class='$class second theme-version-author-uri'>";
 
                                         $theme_meta = array();
 
-                                        if ( !empty( $theme['Version'] ) )
-                                                $theme_meta[] = sprintf( __( 'Version %s' ), $theme['Version'] );
+                                        if ( $theme->get('Version') )
+                                                $theme_meta[] = sprintf( __( 'Version %s' ), $theme->display('Version') );
 
-                                        if ( !empty( $theme['Author'] ) )
-                                                $theme_meta[] = sprintf( __( 'By %s' ), $theme['Author'] );
+                                        if ( $theme->get('Author') )
+                                                $theme_meta[] = sprintf( __( 'By %s' ), $theme->display('Author') );
 
-                                        if ( !empty( $theme['Theme URI'] ) )
-                                                $theme_meta[] = '<a href="' . $theme['Theme URI'] . '" title="' . esc_attr__( 'Visit theme homepage' ) . '">' . __( 'Visit Theme Site' ) . '</a>';
+                                        if ( $theme->get('ThemeURI') )
+                                                $theme_meta[] = '<a href="' . $theme->display('ThemeURI') . '" title="' . esc_attr__( 'Visit theme homepage' ) . '">' . __( 'Visit Theme Site' ) . '</a>';
 
                                         $theme_meta = apply_filters( 'theme_row_meta', $theme_meta, $theme_key, $theme, $status );
                                         echo implode( ' | ', $theme_meta );

wp-admin/includes/dashboard.php

@@ -383 +383 @@
         echo "\n\t</table>\n\t</div>";
 
         echo "\n\t".'<div class="versions">';
-        $ct = current_theme_info();
+        $theme = wp_get_theme();
 
         echo "\n\t<p>";
 
-        if ( empty( $ct->stylesheet_dir ) ) {
+        if ( $theme->errors() ) {
                 if ( ! is_multisite() || is_super_admin() )
                         echo '<span class="error-message">' . __('ERROR: The themes directory is either empty or doesn&#8217;t exist. Please check your installation.') . '</span>';
         } elseif ( ! empty($wp_registered_sidebars) ) {
@@ -401 +401 @@
                 }
                 $num = number_format_i18n( $num_widgets );
 
-                $switch_themes = $ct->title;
+                $switch_themes = $theme->display('Name');
                 if ( current_user_can( 'switch_themes') )
                         $switch_themes = '<a href="themes.php">' . $switch_themes . '</a>';
                 if ( current_user_can( 'edit_theme_options' ) ) {
@@ -411 +411 @@
                 }
         } else {
                 if ( current_user_can( 'switch_themes' ) )
-                        printf( __('Theme <span class="b"><a href="themes.php">%1$s</a></span>'), $ct->title );
+                        printf( __('Theme <span class="b"><a href="themes.php">%1$s</a></span>'), $theme->display('Name') );
                 else
-                        printf( __('Theme <span class="b">%1$s</span>'), $ct->title );
+                        printf( __('Theme <span class="b">%1$s</span>'), $theme->display('Name') );
         }
         echo '</p>';
 
@@ -1313 +1313 @@
         <div class="welcome-panel-column welcome-panel-last">
                 <h4><span class="icon16 icon-appearance"></span> <?php _e( 'Customize Your Site' ); ?></h4>
                 <?php
-                $ct = current_theme_info();
-                if ( empty ( $ct->stylesheet_dir ) ) :
+                $theme = wp_get_theme();
+                if ( $theme->errors() ) :
                         echo '<p>';
                         printf( __( '<a href="%s">Install a theme</a> to get started customizing your site.' ), esc_url( admin_url( 'themes.php' ) ) );
                         echo '</p>';
                 else:
                         $customize_links = array();
-                        if ( 'twentyeleven' == $ct->stylesheet )
+                        if ( 'twentyeleven' == $theme->get_stylesheet() )
                                 $customize_links[] = sprintf( __( '<a href="%s">Choose light or dark</a>' ), esc_url( admin_url( 'themes.php?page=theme_options' ) ) );
 
                         if ( current_theme_supports( 'custom-background' ) )
@@ -1334 +1334 @@
 
                         if ( ! empty( $customize_links ) ) {
                                 echo '<p>';
-                                printf( __( 'Use the current theme &mdash; %1$s &mdash; or <a href="%2$s">choose a new one</a>. If you stick with %3$s, here are a few ways to make your site look unique.' ), $ct->title, esc_url( admin_url( 'themes.php' ) ), $ct->title );
+                                printf( __( 'Use the current theme &mdash; %1$s &mdash; or <a href="%2$s">choose a new one</a>. If you stick with %1$s, here are a few ways to make your site look unique.' ), $theme->display('Name'), esc_url( admin_url( 'themes.php' ) ) );
                                 echo '</p>';
                         ?>
                         <ul>
@@ -1345 +1345 @@
                         <?php
                         } else {
                                 echo '<p>';
-                                printf( __( 'Use the current theme &mdash; %1$s &mdash; or <a href="%2$s">choose a new one</a>.' ), $ct->title, esc_url( admin_url( 'themes.php' ) ) );
+                                printf( __( 'Use the current theme &mdash; %1$s &mdash; or <a href="%2$s">choose a new one</a>.' ), $this->display('Name'), esc_url( admin_url( 'themes.php' ) ) );
                                 echo '</p>';
                         }
                 endif; ?>

wp-admin/includes/deprecated.php

@@ -879 +879 @@
                 $screen = convert_to_screen( $screen );
 
         WP_Screen::add_old_compat_help( $screen, $help );
+}
+
+/**
+ * Get the allowed themes for the current blog.
+ *
+ * @since 3.0.0
+ * @deprecated 3.4.0
+ * @deprecated Use wp_get_themes()
+ * @see wp_get_themes()
+ *
+ * @return array $themes Array of allowed themes.
+ */
+function get_allowed_themes() {
+        _deprecated_function( __FUNCTION__, '3.4', "wp_get_themes( array( 'allowed' => true ) )" );
+
+        $themes = wp_get_themes( array( 'allowed' => true ) );
+
+        $wp_themes = array();
+        foreach ( $themes as $theme ) {
+                $wp_themes[ $theme->get('Name') ] = $theme;
+        }
+
+        return $wp_themes;
+}
+
+/**
+ * {@internal Missing Short Description}}
+ *
+ * @since 1.5.0
+ *
+ * @return unknown
+ */
+function get_broken_themes() {
+        _deprecated_function( __FUNCTION__, '3.4', "wp_get_themes( array( 'errors' => true )" );
+
+        $themes = wp_get_themes( array( 'errors' => true ) );
+        $broken = array();
+        foreach ( $themes as $theme ) {
+                $broken[ $theme->get('Name') ] = array(
+                        'Title' => $theme->get('Name'),
+                        'Description' => $theme->errors()->get_error_message(),
+                );
+        }
+        return $broken;
+}
+
+/**
+ * {@internal Missing Short Description}}
+ *
+ * @since 2.0.0
+ *
+ * @return unknown
+ */
+function current_theme_info() {
+        _deprecated_function( __FUNCTION__, '3.4', 'wp_get_theme()' );
+
+        return wp_get_theme();
 }
+ No newline at end of file

wp-admin/includes/schema.php

@@ -343 +343 @@
 
         $template = WP_DEFAULT_THEME;
         // If default theme is a child theme, we need to get its template
-        foreach ( (array) get_themes() as $theme ) {
-                if ( WP_DEFAULT_THEME == $theme['Stylesheet'] ) {
-                        $template = $theme['Template'];
-                        break;
-                }
-        }
+        $theme = wp_get_theme( $template );
+        if ( ! $theme->errors() )
+                $template = $theme->get_template();
 
         $timezone_string = '';
         $gmt_offset = 0;

wp-admin/includes/theme.php

@@ -7 +7 @@
  */
 
 /**
- * {@internal Missing Short Description}}
- *
- * @since 2.0.0
- *
- * @return unknown
- */
-function current_theme_info() {
-        $themes = get_themes();
-        $current_theme = get_current_theme();
-
-        if ( ! $themes ) {
-                $ct = new stdClass;
-                $ct->name = $current_theme;
-                return $ct;
-        }
-
-        if ( ! isset( $themes[$current_theme] ) ) {
-                delete_option( 'current_theme' );
-                $current_theme = get_current_theme();
-        }
-
-        $ct = new stdClass;
-        $ct->name = $current_theme;
-        $ct->title = $themes[$current_theme]['Title'];
-        $ct->version = $themes[$current_theme]['Version'];
-        $ct->parent_theme = $themes[$current_theme]['Parent Theme'];
-        $ct->template_dir = $themes[$current_theme]['Template Dir'];
-        $ct->stylesheet_dir = $themes[$current_theme]['Stylesheet Dir'];
-        $ct->template = $themes[$current_theme]['Template'];
-        $ct->stylesheet = $themes[$current_theme]['Stylesheet'];
-        $ct->screenshot = $themes[$current_theme]['Screenshot'];
-        $ct->description = $themes[$current_theme]['Description'];
-        $ct->author = $themes[$current_theme]['Author'];
-        $ct->tags = $themes[$current_theme]['Tags'];
-        $ct->theme_root = $themes[$current_theme]['Theme Root'];
-        $ct->theme_root_uri = $themes[$current_theme]['Theme Root URI'];
-        return $ct;
-}
-
-/**
  * Remove a theme
  *
  * @since 2.8.0
@@ -114 +74 @@
 }
 
 /**
- * {@internal Missing Short Description}}
- *
- * @since 1.5.0
- *
- * @return unknown
- */
-function get_broken_themes() {
-        global $wp_broken_themes;
-
-        get_themes();
-        return $wp_broken_themes;
-}
-
-/**
- * Get the allowed themes for the current blog.
- *
- * @since 3.0.0
- *
- * @uses get_themes()
- * @uses current_theme_info()
- * @uses get_site_allowed_themes()
- * @uses wpmu_get_blog_allowedthemes
- *
- * @return array $themes Array of allowed themes.
- */
-function get_allowed_themes() {
-        if ( !is_multisite() )
-                return get_themes();
-
-        $themes = get_themes();
-        $ct = current_theme_info();
-        $allowed_themes = apply_filters("allowed_themes", get_site_allowed_themes() );
-        if ( $allowed_themes == false )
-                $allowed_themes = array();
-
-        $blog_allowed_themes = wpmu_get_blog_allowedthemes();
-        if ( is_array( $blog_allowed_themes ) )
-                $allowed_themes = array_merge( $allowed_themes, $blog_allowed_themes );
-
-        if ( isset( $allowed_themes[ esc_html( $ct->stylesheet ) ] ) == false )
-                $allowed_themes[ esc_html( $ct->stylesheet ) ] = true;
-
-        reset( $themes );
-        foreach ( $themes as $key => $theme ) {
-                if ( isset( $allowed_themes[ esc_html( $theme[ 'Stylesheet' ] ) ] ) == false )
-                        unset( $themes[ $key ] );
-        }
-        reset( $themes );
-
-        return $themes;
-}
-
-/**
  * Get the Page Templates available in this theme
  *
  * @since 1.5.0
@@ -174 +81 @@
  * @return array Key is the template name, value is the filename of the template
  */
 function get_page_templates() {
-        $themes = get_themes();
-        $theme = get_current_theme();
-        $templates = $themes[$theme]['Template Files'];
-        $page_templates = array();
-
-        if ( is_array( $templates ) ) {
-                $base = array( trailingslashit(get_template_directory()), trailingslashit(get_stylesheet_directory()) );
-
-                foreach ( $templates as $template ) {
-                        $basename = str_replace($base, '', $template);
-
-                        // don't allow template files in subdirectories
-                        if ( false !== strpos($basename, '/') )
-                                continue;
-
-                        if ( 'functions.php' == $basename )
-                                continue;
-
-                        $template_data = implode( '', file( $template ));
-
-                        $name = '';
-                        if ( preg_match( '|Template Name:(.*)$|mi', $template_data, $name ) )
-                                $name = _cleanup_header_comment($name[1]);
-
-                        if ( !empty( $name ) ) {
-                                $page_templates[trim( $name )] = $basename;
-                        }
-                }
-        }
-
-        return $page_templates;
+        return wp_get_theme()->get_page_templates();
 }
 
 /**
@@ -240 +117 @@
         if ( !isset($themes_update) )
                 $themes_update = get_site_transient('update_themes');
 
-        if ( is_object($theme) && isset($theme->stylesheet) )
-                $stylesheet = $theme->stylesheet;
-        elseif ( is_array($theme) && isset($theme['Stylesheet']) )
-                $stylesheet = $theme['Stylesheet'];
-        else
-                return false; //No valid info passed.
+        if ( ! is_a( $theme, 'WP_Theme' ) )
+                return;
 
+        $stylesheet = $theme->get_stylesheet();
+
         if ( isset($themes_update->response[ $stylesheet ]) ) {
                 $update = $themes_update->response[ $stylesheet ];
-                $theme_name = is_object($theme) ? $theme->name : (is_array($theme) ? $theme['Name'] : '');
+                $theme_name = $theme->get('Name');
                 $details_url = add_query_arg(array('TB_iframe' => 'true', 'width' => 1024, 'height' => 800), $update['url']); //Theme browser inside WP? replace this, Also, theme preview JS will override this on the available list.
                 $update_url = wp_nonce_url('update.php?action=upgrade-theme&theme=' . urlencode($stylesheet), 'upgrade-theme_' . $stylesheet);
                 $update_onclick = 'onclick="if ( confirm(\'' . esc_js( __("Updating this theme will lose any customizations you have made. 'Cancel' to stop, 'OK' to update.") ) . '\') ) {return true;}return false;"';
@@ -270 +145 @@
  *
  * @since 3.1.0
  *
+ * @param bool $api Optional. Whether to hit the API for tags. Defaults to true.
  * @return array Array of features keyed by category with translations keyed by slug.
  */
-function get_theme_feature_list() {
+function get_theme_feature_list( $api = true ) {
         // Hard-coded list is used if api not accessible.
         $features = array(
                         __('Colors') => array(
@@ -290 +166 @@
                                 'white'   => __( 'White' ),
                                 'yellow'  => __( 'Yellow' ),
                                 'dark'    => __( 'Dark' ),
-                                'light'   => __( 'Light ')
+                                'light'   => __( 'Light' )
                         ),
 
                 __('Columns') => array(
@@ -335 +211 @@
                 )
         );
 
-        if ( !current_user_can('install_themes') )
+        if ( ! $api || !current_user_can('install_themes') )
                 return $features;
 
         if ( !$feature_list = get_site_transient( 'wporg_theme_feature_list' ) )

wp-admin/includes/theme-install.php

@@ -265 +265 @@
                 }
         }
 
-        $themes = get_themes();
-        foreach ( (array) $themes as $this_theme ) {
-                if ( is_array($this_theme) && $this_theme['Stylesheet'] == $api->slug ) {
-                        if ( version_compare( $this_theme['Version'], $api->version, '=' ) ) {
+        $theme = wp_get_theme( $api->slug );
+        if ( is_a( $theme, 'WP_Theme' ) ) {
+                switch ( version_compare( $theme->get('Version'), $api->version ) ) {
+                        case 0; // equal
                                 $type = 'latest_installed';
-                        } elseif ( version_compare( $this_theme['Version'], $api->version, '>' ) ) {
+                        case 1: // installed theme > api version
                                 $type = 'newer_installed';
-                                $newer_version = $this_theme['Version'];
-                        }
-                        break;
+                                $newer_version = $theme->get('Version');
                 }
         }
 ?>

wp-admin/includes/class-wp-themes-list-table.php

@@ -24 +24 @@
         }
 
         function prepare_items() {
-                global $ct;
+                $themes = wp_get_themes( array( 'allowed' => true ) );
 
-                $ct = current_theme_info();
-
-                $themes = get_allowed_themes();
-
                 if ( ! empty( $_REQUEST['s'] ) ) {
                         $search = strtolower( stripslashes( $_REQUEST['s'] ) );
                         $this->search = array_merge( $this->search, array_filter( array_map( 'trim', explode( ',', $search ) ) ) );
@@ -45 +41 @@
 
                 if ( $this->search || $this->features ) {
                         foreach ( $themes as $key => $theme ) {
-                                if ( !$this->search_theme( $theme ) )
+                                if ( ! $this->search_theme( $theme ) )
                                         unset( $themes[ $key ] );
                         }
                 }
 
-                unset( $themes[$ct->name] );
-                uksort( $themes, "strnatcasecmp" );
+                unset( $themes[ get_option( 'stylesheet' ) ] );
+                WP_Theme::sort_by_name( $themes );
 
                 $per_page = 999;
                 $page = $this->get_pagenum();
@@ -125 +121 @@
 
         function display_rows() {
                 $themes = $this->items;
-                $theme_names = array_keys( $themes );
-                natcasesort( $theme_names );
 
-        foreach ( $theme_names as $theme_name ) {
-                $class = array( 'available-theme' );
-        ?>
-        <div class="<?php echo join( ' ', $class ); ?>">
-        <?php if ( !empty( $theme_name ) ) :
-        $template = $themes[$theme_name]['Template'];
-        $stylesheet = $themes[$theme_name]['Stylesheet'];
-        $title = $themes[$theme_name]['Title'];
-        $version = $themes[$theme_name]['Version'];
-        $description = $themes[$theme_name]['Description'];
-        $author = $themes[$theme_name]['Author'];
-        $screenshot = $themes[$theme_name]['Screenshot'];
-        $stylesheet_dir = $themes[$theme_name]['Stylesheet Dir'];
-        $template_dir = $themes[$theme_name]['Template Dir'];
-        $parent_theme = $themes[$theme_name]['Parent Theme'];
-        $theme_root = $themes[$theme_name]['Theme Root'];
-        $theme_root_uri = $themes[$theme_name]['Theme Root URI'];
-        $preview_link = esc_url( add_query_arg( array( 'preview' => 1, 'template' => $template, 'stylesheet' => $stylesheet, 'preview_iframe' => true, 'TB_iframe' => 'true' ), home_url( '/' ) ) );
-        $preview_text = esc_attr( sprintf( __( 'Preview of &#8220;%s&#8221;' ), $title ) );
-        $tags = $themes[$theme_name]['Tags'];
-        $thickbox_class = 'thickbox thickbox-preview';
-        $activate_link = wp_nonce_url( "themes.php?action=activate&amp;template=" . urlencode( $template ) . "&amp;stylesheet=" . urlencode( $stylesheet ), 'switch-theme_' . $template );
-        $activate_text = esc_attr( sprintf( __( 'Activate &#8220;%s&#8221;' ), $title ) );
-        $actions = array();
-        $actions[] = '<a href="' . $activate_link . '" class="activatelink" title="' . $activate_text . '">' . __( 'Activate' ) . '</a>';
-        $actions[] = '<a href="' . $preview_link . '" class="thickbox thickbox-preview" title="' . esc_attr( sprintf( __( 'Preview &#8220;%s&#8221;' ), $theme_name ) ) . '">' . __( 'Preview' ) . '</a>';
-        if ( ! is_multisite() && current_user_can( 'delete_themes' ) )
-                $actions[] = '<a class="submitdelete deletion" href="' . wp_nonce_url( "themes.php?action=delete&amp;template=$stylesheet", 'delete-theme_' . $stylesheet ) . '" onclick="' . "return confirm( '" . esc_js( sprintf( __( "You are about to delete this theme '%s'\n  'Cancel' to stop, 'OK' to delete." ), $theme_name ) ) . "' );" . '">' . __( 'Delete' ) . '</a>';
-        $actions = apply_filters( 'theme_action_links', $actions, $themes[$theme_name] );
+                foreach ( $themes as $theme ) {
+                        echo '<div class="available-theme">';
 
-        $actions = implode ( ' | ', $actions );
-?>
-                <a href="<?php echo $preview_link; ?>" class="<?php echo $thickbox_class; ?> screenshot">
-<?php if ( $screenshot ) : ?>
-                        <img src="<?php echo $theme_root_uri . '/' . $stylesheet . '/' . $screenshot; ?>" alt="" />
-<?php endif; ?>
-                </a>
-<h3><?php
-        /* translators: 1: theme title, 2: theme version, 3: theme author */
-        printf( __( '%1$s %2$s by %3$s' ), $title, $version, $author ) ; ?></h3>
+                        $template = $theme->get_template();
+                        $stylesheet = $theme->get_stylesheet();
 
-<span class='action-links'><?php echo $actions ?></span>
-<span class="separator hide-if-no-js">| </span><a href="#" class="theme-detail hide-if-no-js" tabindex='4'><?php _e('Details') ?></a>
-<div class="themedetaildiv hide-if-js">
-<p><?php echo $description; ?></p>
-        <?php if ( current_user_can( 'edit_themes' ) && $parent_theme ) {
-        /* translators: 1: theme title, 2:  template dir, 3: stylesheet_dir, 4: theme title, 5: parent_theme */ ?>
-        <p><?php printf( __( 'The template files are located in <code>%2$s</code>. The stylesheet files are located in <code>%3$s</code>. <strong>%4$s</strong> uses templates from <strong>%5$s</strong>. Changes made to the templates will affect both themes.' ), $title, str_replace( WP_CONTENT_DIR, '', $template_dir ), str_replace( WP_CONTENT_DIR, '', $stylesheet_dir ), $title, $parent_theme ); ?></p>
-<?php } else { ?>
-        <p><?php printf( __( 'All of this theme&#8217;s files are located in <code>%2$s</code>.' ), $title, str_replace( WP_CONTENT_DIR, '', $template_dir ), str_replace( WP_CONTENT_DIR, '', $stylesheet_dir ) ); ?></p>
-<?php } ?>
-<?php if ( $tags ) : ?>
-<p><?php _e( 'Tags:' ); ?> <?php echo join( ', ', $tags ); ?></p>
-<?php endif; ?>
-<?php endif; // end if not empty theme_name ?>
-</div>
-        <?php theme_update_available( $themes[$theme_name] ); ?>
-        </div>
-<?php } // end foreach $theme_names
+                        $title = $theme->display('Name');
+                        $version = $theme->display('Version');
+                        $author = $theme->display('Author');
+
+                        $activate_link = wp_nonce_url( "themes.php?action=activate&amp;template=" . urlencode( $template ) . "&amp;stylesheet=" . urlencode( $stylesheet ), 'switch-theme_' . $template );
+                        $preview_link = esc_url( add_query_arg(
+                                array( 'preview' => 1, 'template' => $template, 'stylesheet' => $stylesheet, 'preview_iframe' => true, 'TB_iframe' => 'true' ),
+                                home_url( '/' ) ) );
+
+                        $actions = array();
+                        $actions[] = '<a href="' . $activate_link . '" class="activatelink" title="'
+                                . esc_attr( sprintf( __( 'Activate &#8220;%s&#8221;' ), $title ) ) . '">' . __( 'Activate' ) . '</a>';
+                        $actions[] = '<a href="' . $preview_link . '" class="thickbox thickbox-preview" title="'
+                                . esc_attr( sprintf( __( 'Preview &#8220;%s&#8221;' ), $title ) ) . '">' . __( 'Preview' ) . '</a>';
+                        if ( ! is_multisite() && current_user_can( 'delete_themes' ) )
+                                $actions[] = '<a class="submitdelete deletion" href="' . wp_nonce_url( "themes.php?action=delete&amp;template=$stylesheet", 'delete-theme_' . $stylesheet )
+                                        . '" onclick="' . "return confirm( '" . esc_js( sprintf( __( "You are about to delete this theme '%s'\n  'Cancel' to stop, 'OK' to delete." ), $title ) )
+                                        . "' );" . '">' . __( 'Delete' ) . '</a>';
+
+                        $actions = apply_filters( 'theme_action_links', $actions, $theme );
+
+                        $actions = implode ( ' | ', $actions );
+                        ?>
+                        <a href="<?php echo $preview_link; ?>" class="thickbox thickbox-preview screenshot">
+                        <?php if ( $theme->get_screenshot() ) : ?>
+                                <img src="<?php echo esc_url( $theme->get_screenshot( 'absolute' ) ); ?>" alt="" />
+                        <?php endif; ?>
+                        </a>
+                        <h3><?php
+                        /* translators: 1: theme title, 2: theme version, 3: theme author */
+                        printf( __( '%1$s %2$s by %3$s' ), $title, $version, $author ) ; ?></h3>
+
+                        <span class='action-links'><?php echo $actions ?></span>
+                        <span class="separator hide-if-no-js">| </span><a href="#" class="theme-detail hide-if-no-js" tabindex='4'><?php _e('Details') ?></a>
+                        <div class="themedetaildiv hide-if-js">
+                        <p><?php echo $theme->display('Description'); ?></p>
+                        <?php if ( current_user_can( 'edit_themes' ) && $theme->parent() ) :
+                                /* translators: 1: theme title, 2:  template dir, 3: stylesheet_dir, 4: theme title, 5: parent_theme */ ?>
+                                <p><?php printf( __( 'The template files are located in <code>%2$s</code>. The stylesheet files are located in <code>%3$s</code>. <strong>%4$s</strong> uses templates from <strong>%5$s</strong>. Changes made to the templates will affect both themes.' ),
+                                        $title, str_replace( WP_CONTENT_DIR, '', $theme->get_template_directory() ), str_replace( WP_CONTENT_DIR, '', $theme->get_stylesheet_directory() ), $title, $theme->parent()->display('Name') ); ?></p>
+                        <?php else :
+                                        /* translators: 1: theme title, 2:  template dir, 3: stylesheet_dir */ ?>
+                                <p><?php printf( __( 'All of this theme&#8217;s files are located in <code>%2$s</code>.' ),
+                                        $title, str_replace( WP_CONTENT_DIR, '', $theme->get_template_directory() ), str_replace( WP_CONTENT_DIR, '', $theme->get_stylesheet_directory() ) ); ?></p>
+                        <?php endif; ?>
+                        <?php
+                        if ( $theme->get('Tags') )
+                                printf( '<p>' . __( 'Tags: %s.' ) . '</p>', $theme->display('Tags') );
+                        ?>
+                        </div>
+                        <?php theme_update_available( $theme ); ?>
+                        </div>
+                <?php
+                }
         }
 
         function search_theme( $theme ) {
-                $matched = 0;
+                // Search the features
+                if ( $this->features ) {
+                        foreach ( $this->features as $word ) {
+                                if ( ! in_array( $word, $theme->get('Tags') ) )
+                                        return false;
+                        }
+                }
 
                 // Match all phrases
-                if ( count( $this->search ) > 0 ) {
+                if ( $this->search ) {
                         foreach ( $this->search as $word ) {
-                                $matched = 0;
+                                if ( in_array( $word, $theme->get('Tags') ) )
+                                        continue;
 
-                                // In a tag?
-                                if ( in_array( $word, array_map( 'sanitize_title_with_dashes', $theme['Tags'] ) ) )
-                                        $matched = 1;
-
-                                // In one of the fields?
-                                foreach ( array( 'Name', 'Title', 'Description', 'Author', 'Template', 'Stylesheet' ) AS $field ) {
-                                        if ( stripos( $theme[$field], $word ) !== false )
-                                                $matched++;
+                                foreach ( array( 'Name', 'Description', 'Author', 'AuthorURI' ) as $header ) {
+                                        // Don't mark up; Do translate.
+                                        if ( false !== stripos( $theme->display( $header, false, true ), $word ) )
+                                                continue 2;
                                 }
 
-                                if ( $matched == 0 )
-                                        return false;
-                        }
-                }
+                                if ( false !== stripos( $theme->get_stylesheet(), $word ) )
+                                        continue;
 
-                // Now search the features
-                if ( count( $this->features ) > 0 ) {
-                        foreach ( $this->features as $word ) {
-                                // In a tag?
-                                if ( !in_array( $word, array_map( 'sanitize_title_with_dashes', $theme['Tags'] ) ) )
-                                        return false;
+                                if ( false !== stripos( $theme->get_template(), $word ) )
+                                        continue;
+
+                                return false;
                         }
                 }
 
-                // Only get here if each word exists in the tags or one of the fields
                 return true;
         }
 }

wp-admin/includes/ms.php

@@ -169 +169 @@
         return true;
 }
 
-function wpmu_get_blog_allowedthemes( $blog_id = 0 ) {
-        $themes = get_themes();
-
-        if ( $blog_id != 0 )
-                switch_to_blog( $blog_id );
-
-        $blog_allowed_themes = get_option( 'allowedthemes' );
-        if ( !is_array( $blog_allowed_themes ) || empty( $blog_allowed_themes ) ) { // convert old allowed_themes to new allowedthemes
-                $blog_allowed_themes = get_option( 'allowed_themes' );
-
-                if ( is_array( $blog_allowed_themes ) ) {
-                        foreach( (array) $themes as $key => $theme ) {
-                                $theme_key = esc_html( $theme['Stylesheet'] );
-                                if ( isset( $blog_allowed_themes[$key] ) == true ) {
-                                        $blog_allowedthemes[$theme_key] = 1;
-                                }
-                        }
-                        $blog_allowed_themes = $blog_allowedthemes;
-                        add_option( 'allowedthemes', $blog_allowed_themes );
-                        delete_option( 'allowed_themes' );
-                }
-        }
-
-        if ( $blog_id != 0 )
-                restore_current_blog();
-
-        return $blog_allowed_themes;
-}
-
 function update_option_new_admin_email( $old_value, $value ) {
         $email = get_option( 'admin_email' );
         if ( $value == get_option( 'admin_email' ) || !is_email( $value ) )
@@ -296 +267 @@
 }
 add_action( 'admin_notices', 'new_user_email_admin_notice' );
 
-function get_site_allowed_themes() {
-        $themes = get_themes();
-        $allowed_themes = get_site_option( 'allowedthemes' );
-        if ( !is_array( $allowed_themes ) || empty( $allowed_themes ) ) {
-                $allowed_themes = get_site_option( 'allowed_themes' ); // convert old allowed_themes format
-                if ( !is_array( $allowed_themes ) ) {
-                        $allowed_themes = array();
-                } else {
-                        foreach( (array) $themes as $key => $theme ) {
-                                $theme_key = esc_html( $theme['Stylesheet'] );
-                                if ( isset( $allowed_themes[ $key ] ) == true ) {
-                                        $allowedthemes[ $theme_key ] = 1;
-                                }
-                        }
-                        $allowed_themes = $allowedthemes;
-                }
-        }
-        return $allowed_themes;
-}
-
 /**
  * Determines if there is any upload space left in the current blog's quota.
  *

wp-admin/themes.php

@@ -96 +96 @@
 <h2><?php echo esc_html( $title ); ?>
 <?php endif; ?>
 </h2>
-
-<h3><?php _e('Current Theme'); ?></h3>
+<?php $ct = wp_get_theme(); ?>
+<h3><?php _e( 'Current Theme' ); ?></h3>
 <div id="current-theme">
-<?php if ( $ct->screenshot ) : ?>
-<img src="<?php echo $ct->theme_root_uri . '/' . $ct->stylesheet . '/' . $ct->screenshot; ?>" alt="<?php esc_attr_e('Current theme preview'); ?>" />
+<?php if ( $ct->get_screenshot() ) : ?>
+<img src="<?php echo $ct->get_screenshot( 'absolute' ); ?>" alt="<?php esc_attr_e( 'Current theme preview'); ?>" />
 <?php endif; ?>
 <h4><?php
         /* translators: 1: theme title, 2: theme version, 3: theme author */
-        printf(__('%1$s %2$s by %3$s'), $ct->title, $ct->version, $ct->author) ; ?></h4>
-<p class="theme-description"><?php echo $ct->description; ?></p>
+        printf( __( '%1$s %2$s by %3$s' ), $ct->display('Name'), $ct->display('Version'), $ct->display('Author') ) ; ?></h4>
+<p class="theme-description"><?php echo $ct->display('Description'); ?></p>
 <div class="theme-options">
         <span><?php _e( 'Options:' )?></span>
         <?php
@@ -117 +117 @@
                         if ( 'themes.php' == $item[2] || 'theme-editor.php' == $item[2] )
                                 continue;
                         // 0 = name, 1 = capability, 2 = file
-                        if ( ( strcmp($self, $item[2]) == 0 && empty($parent_file)) || ($parent_file && ($item[2] == $parent_file)) ) $class = ' class="current"';
-
+                        if ( ( strcmp($self, $item[2]) == 0 && empty($parent_file)) || ($parent_file && ($item[2] == $parent_file)) )
+                                $class = ' class="current"';
                         if ( !empty($submenu[$item[2]]) ) {
                                 $submenu[$item[2]] = array_values($submenu[$item[2]]); // Re-index.
                                 $menu_hook = get_plugin_page_hook($submenu[$item[2]][0][2], $item[2]);
@@ -137 +137 @@
         }
         echo implode ( ' | ', $options );
 
-        if ( $ct->tags ) : ?>
-        <p><?php _e('Tags:'); ?> <?php echo join(', ', $ct->tags); ?></p>
+        if ( $ct->get('Tags') ) : ?>
+        <p><?php _e('Tags:'); ?> <?php echo $ct->display('Tags'); ?></p>
         <?php endif; ?>
 </div>
 <?php theme_update_available($ct); ?>
@@ -218 +218 @@
 
 <?php
 // List broken themes, if any.
-$broken_themes = get_broken_themes();
-if ( current_user_can('edit_themes') && count( $broken_themes ) ) {
+if ( current_user_can('edit_themes') && $broken_themes = wp_get_themes( array( 'errors' => true ) ) ) {
 ?>
 
 <h3><?php _e('Broken Themes'); ?></h3>
@@ -231 +230 @@
                 <th><?php _e('Description'); ?></th>
         </tr>
 <?php
-        $theme = '';
-
-        $theme_names = array_keys($broken_themes);
-        natcasesort($theme_names);
-
-        foreach ($theme_names as $theme_name) {
-                $name = $broken_themes[$theme_name]['Title'];
-                $description = $broken_themes[$theme_name]['Description'];
-
-                $theme = ('class="alternate"' == $theme) ? '' : 'class="alternate"';
+        $alt = '';
+        foreach ( $broken_themes as $broken_theme ) {
+                $alt = ('class="alternate"' == $alt) ? '' : 'class="alternate"';
                 echo "
-                <tr $theme>
-                         <td>$name</td>
-                         <td>$description</td>
+                <tr $alt>
+                         <td>" . $broken_theme->get('Name') ."</td>
+                         <td>" . $broken_theme->errors()->get_error_message() . "</td>
                 </tr>";
         }
 ?>
@@ -254 +246 @@
 ?>
 </div>
 
-<?php require('./admin-footer.php'); ?>
+<?php require('./admin-footer.php'); ?>
+ No newline at end of file