+ $res = new WP_Error('themes_api_failed', __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server’s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ), wp_remote_retrieve_body( $request ) );
+ }
+ }
+
+ /**
+ * Filter the returned WordPress.org Themes API response.
+ *
+ * @since 2.8.0
+ *
+ * @param array|object $res WordPress.org Themes API response.
+ * @param string $action Requested action. Likely values are 'theme_information',
+ * 'feature_list', or 'query_themes'.
+ * @param object $args Arguments used to query for installer pages from the WordPress.org Themes API.
+ */
+ return apply_filters( 'themes_api_result', $res, $action, $args );
+}
+
+/**
+ * Prepare themes for JavaScript.
+ *
+ * @since 3.8.0
+ *
+ * @param array $themes Optional. Array of WP_Theme objects to prepare.
+ * Defaults to all allowed themes.
+ *
+ * @return array An associative array of theme data, sorted by name.
+ */
+function wp_prepare_themes_for_js( $themes = null ) {
+ $current_theme = get_stylesheet();
+
+ /**
+ * Filter theme data before it is prepared for JavaScript.
+ *
+ * Passing a non-empty array will result in wp_prepare_themes_for_js() returning
+ * early with that value instead.
+ *
+ * @since 4.2.0
+ *
+ * @param array $prepared_themes An associative array of theme data. Default empty array.
+ * @param null|array $themes An array of WP_Theme objects to prepare, if any.
+ * @param string $current_theme The current theme slug.
+ */
+ $prepared_themes = (array) apply_filters( 'pre_prepare_themes_for_js', array(), $themes, $current_theme );
+
+ if ( ! empty( $prepared_themes ) ) {
+ return $prepared_themes;
+ }
+
+ // Make sure the current theme is listed first.
+ $prepared_themes[ $current_theme ] = array();
+
+ if ( null === $themes ) {
+ $themes = wp_get_themes( array( 'allowed' => true ) );
+ if ( ! isset( $themes[ $current_theme ] ) ) {
+ $themes[ $current_theme ] = wp_get_theme();
+ }
+ }
+
+ $updates = array();
+ if ( current_user_can( 'update_themes' ) ) {
+ $updates_transient = get_site_transient( 'update_themes' );
+ if ( isset( $updates_transient->response ) ) {
+ $updates = $updates_transient->response;
+ }
+ }
+
+ WP_Theme::sort_by_name( $themes );
+
+ $parents = array();
+
+ foreach ( $themes as $theme ) {
+ $slug = $theme->get_stylesheet();
+ $encoded_slug = urlencode( $slug );
+
+ $parent = false;
+ if ( $theme->parent() ) {
+ $parent = $theme->parent()->display( 'Name' );
+ $parents[ $slug ] = $theme->parent()->get_stylesheet();
+ }
+
+ $customize_action = null;
+ if ( current_user_can( 'edit_theme_options' ) && current_user_can( 'customize' ) ) {
+ $customize_action = esc_url( add_query_arg(
+ array(
+ 'return' => urlencode( esc_url_raw( wp_unslash( $_SERVER['REQUEST_URI'] ) ) ),
+ ),
+ wp_customize_url( $slug )
+ ) );