+/**
+ * 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();
+
+ // Make sure the current theme is listed first.
+ $prepared_themes = array( $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 );
+ foreach ( $themes as $theme ) {
+ $parent = false;
+ if ( $theme->parent() ) {
+ $parent = $theme->parent()->display( 'Name' );
+ }
+
+ $slug = $theme->get_stylesheet();
+ $encoded_slug = urlencode( $slug );
+
+ $prepared_themes[ $slug ] = array(
+ 'id' => $slug,
+ 'name' => $theme->display( 'Name' ),
+ 'screenshot' => array( $theme->get_screenshot() ), // @todo multiple
+ 'description' => $theme->display( 'Description' ),
+ 'author' => $theme->display( 'Author', false, true ),
+ 'authorAndUri' => $theme->display( 'Author' ),
+ 'version' => $theme->display( 'Version' ),
+ 'tags' => $theme->display( 'Tags' ),
+ 'parent' => $parent,
+ 'active' => $slug === $current_theme,
+ 'hasUpdate' => isset( $updates[ $slug ] ),
+ 'update' => get_theme_update_available( $theme ),
+ 'actions' => array(
+ 'activate' => current_user_can( 'switch_themes' ) ? wp_nonce_url( admin_url( 'themes.php?action=activate&stylesheet=' . $encoded_slug ), 'switch-theme_' . $slug ) : null,
+ 'customize' => ( current_user_can( 'edit_theme_options' ) && current_user_can( 'customize' ) ) ? wp_customize_url( $slug ) : null,
+ 'preview' => add_query_arg( array(
+ 'preview' => 1,
+ 'template' => urlencode( $theme->get_template() ),
+ 'stylesheet' => urlencode( $slug ),
+ 'preview_iframe' => true,
+ 'TB_iframe' => true,
+ ), home_url( '/' ) ),
+ 'delete' => current_user_can( 'delete_themes' ) ? wp_nonce_url( admin_url( 'themes.php?action=delete&stylesheet=' . $encoded_slug ), 'delete-theme_' . $slug ) : null,
+ ),
+ );
+ }
+
+ /**
+ * Filter the themes prepared for JavaScript, for themes.php.
+ *
+ * Could be useful for changing the order, which is by name by default.
+ *
+ * @since 3.8.0
+ *
+ * @param array $prepared_themes Array of themes.
+ */
+ $prepared_themes = apply_filters( 'wp_prepare_themes_for_js', $prepared_themes );
+ return array_values( $prepared_themes );
+}