WP_Customize_Manager::import_theme_starter_content( array $starter_content = array() )

1202	public function import_theme_starter_content( $starter_content = array() ) {1203		if ( empty( $starter_content ) ) {1204			$starter_content = get_theme_starter_content();1205		}1206 1207		$changeset_data = array();1208		if ( $this->changeset_post_id() ) {1209			/*1210			 * Don't re-import starter content into a changeset saved persistently.1211			 * This will need to be revisited in the future once theme switching1212			 * is allowed with drafted/scheduled changesets, since switching to1213			 * another theme could result in more starter content being applied.1214			 * However, when doing an explicit save it is currently possible for1215			 * nav menus and nav menu items specifically to lose their starter_content1216			 * flags, thus resulting in duplicates being created since they fail1217			 * to get re-used. See #40146.1218			 */1219			if ( 'auto-draft' !== get_post_status( $this->changeset_post_id() ) ) {1220				return;1221			}1222 1223			$changeset_data = $this->get_changeset_post_data( $this->changeset_post_id() );1224		}1225 1226		$sidebars_widgets = isset( $starter_content['widgets'] ) && ! empty( $this->widgets ) ? $starter_content['widgets'] : array();1227		$attachments      = isset( $starter_content['attachments'] ) && ! empty( $this->nav_menus ) ? $starter_content['attachments'] : array();1228		$posts            = isset( $starter_content['posts'] ) && ! empty( $this->nav_menus ) ? $starter_content['posts'] : array();1229		$options          = $starter_content['options'] ?? array();1230		$nav_menus        = isset( $starter_content['nav_menus'] ) && ! empty( $this->nav_menus ) ? $starter_content['nav_menus'] : array();1231		$theme_mods       = $starter_content['theme_mods'] ?? array();1232 1233		// Widgets.1234		$max_widget_numbers = array();1235		foreach ( $sidebars_widgets as $sidebar_id => $widgets ) {1236			$sidebar_widget_ids = array();1237			foreach ( $widgets as $widget ) {1238				list( $id_base, $instance ) = $widget;1239 1240				if ( ! isset( $max_widget_numbers[ $id_base ] ) ) {1241 1242					// When $settings is an array-like object, get an intrinsic array for use with array_keys().1243					$settings = get_option( "widget_{$id_base}", array() );1244					if ( $settings instanceof ArrayObject || $settings instanceof ArrayIterator ) {1245						$settings = $settings->getArrayCopy();1246					}1247 1248					unset( $settings['_multiwidget'] );1249 1250					// Find the max widget number for this type.1251					$widget_numbers = array_keys( $settings );1252					if ( count( $widget_numbers ) > 0 ) {1253						$widget_numbers[]               = 1;1254						$max_widget_numbers[ $id_base ] = max( ...$widget_numbers );1255					} else {1256						$max_widget_numbers[ $id_base ] = 1;1257					}1258				}1259				$max_widget_numbers[ $id_base ] += 1;1260 1261				$widget_id  = sprintf( '%s-%d', $id_base, $max_widget_numbers[ $id_base ] );1262				$setting_id = sprintf( 'widget_%s[%d]', $id_base, $max_widget_numbers[ $id_base ] );1263 1264				$setting_value = $this->widgets->sanitize_widget_js_instance( $instance );1265				if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {1266					$this->set_post_value( $setting_id, $setting_value );1267					$this->pending_starter_content_settings_ids[] = $setting_id;1268				}1269				$sidebar_widget_ids[] = $widget_id;1270			}1271 1272			$setting_id = sprintf( 'sidebars_widgets[%s]', $sidebar_id );1273			if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {1274				$this->set_post_value( $setting_id, $sidebar_widget_ids );1275				$this->pending_starter_content_settings_ids[] = $setting_id;1276			}1277		}1278 1279		$starter_content_auto_draft_post_ids = array();1280		if ( ! empty( $changeset_data['nav_menus_created_posts']['value'] ) ) {1281			$starter_content_auto_draft_post_ids = array_merge( $starter_content_auto_draft_post_ids, $changeset_data['nav_menus_created_posts']['value'] );