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

1203	public function import_theme_starter_content( $starter_content = array() ) {1204		if ( empty( $starter_content ) ) {1205			$starter_content = get_theme_starter_content();1206		}1207 1208		$changeset_data = array();1209		if ( $this->changeset_post_id() ) {1210			/*1211			 * Don't re-import starter content into a changeset saved persistently.1212			 * This will need to be revisited in the future once theme switching1213			 * is allowed with drafted/scheduled changesets, since switching to1214			 * another theme could result in more starter content being applied.1215			 * However, when doing an explicit save it is currently possible for1216			 * nav menus and nav menu items specifically to lose their starter_content1217			 * flags, thus resulting in duplicates being created since they fail1218			 * to get re-used. See #40146.1219			 */1220			if ( 'auto-draft' !== get_post_status( $this->changeset_post_id() ) ) {1221				return;1222			}1223 1224			$changeset_data = $this->get_changeset_post_data( $this->changeset_post_id() );1225		}1226 1227		$sidebars_widgets = isset( $starter_content['widgets'] ) && ! empty( $this->widgets ) ? $starter_content['widgets'] : array();1228		$attachments      = isset( $starter_content['attachments'] ) && ! empty( $this->nav_menus ) ? $starter_content['attachments'] : array();1229		$posts            = isset( $starter_content['posts'] ) && ! empty( $this->nav_menus ) ? $starter_content['posts'] : array();1230		$options          = $starter_content['options'] ?? array();1231		$nav_menus        = isset( $starter_content['nav_menus'] ) && ! empty( $this->nav_menus ) ? $starter_content['nav_menus'] : array();1232		$theme_mods       = $starter_content['theme_mods'] ?? array();1233 1234		// Widgets.1235		$max_widget_numbers = array();1236		foreach ( $sidebars_widgets as $sidebar_id => $widgets ) {1237			$sidebar_widget_ids = array();1238			foreach ( $widgets as $widget ) {1239				list( $id_base, $instance ) = $widget;1240 1241				if ( ! isset( $max_widget_numbers[ $id_base ] ) ) {1242 1243					// When $settings is an array-like object, get an intrinsic array for use with array_keys().1244					$settings = get_option( "widget_{$id_base}", array() );1245					if ( $settings instanceof ArrayObject || $settings instanceof ArrayIterator ) {1246						$settings = $settings->getArrayCopy();1247					}1248 1249					unset( $settings['_multiwidget'] );1250 1251					// Find the max widget number for this type.1252					$widget_numbers = array_keys( $settings );1253					if ( count( $widget_numbers ) > 0 ) {1254						$widget_numbers[]               = 1;1255						$max_widget_numbers[ $id_base ] = max( ...$widget_numbers );1256					} else {1257						$max_widget_numbers[ $id_base ] = 1;1258					}1259				}1260				$max_widget_numbers[ $id_base ] += 1;1261 1262				$widget_id  = sprintf( '%s-%d', $id_base, $max_widget_numbers[ $id_base ] );1263				$setting_id = sprintf( 'widget_%s[%d]', $id_base, $max_widget_numbers[ $id_base ] );1264 1265				$setting_value = $this->widgets->sanitize_widget_js_instance( $instance );1266				if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {1267					$this->set_post_value( $setting_id, $setting_value );1268					$this->pending_starter_content_settings_ids[] = $setting_id;1269				}1270				$sidebar_widget_ids[] = $widget_id;1271			}1272 1273			$setting_id = sprintf( 'sidebars_widgets[%s]', $sidebar_id );1274			if ( empty( $changeset_data[ $setting_id ] ) || ! empty( $changeset_data[ $setting_id ]['starter_content'] ) ) {1275				$this->set_post_value( $setting_id, $sidebar_widget_ids );1276				$this->pending_starter_content_settings_ids[] = $setting_id;1277			}1278		}1279 1280		$starter_content_auto_draft_post_ids = array();1281		if ( ! empty( $changeset_data['nav_menus_created_posts']['value'] ) ) {1282			$starter_content_auto_draft_post_ids = array_merge( $starter_content_auto_draft_post_ids, $changeset_data['nav_menus_created_posts']['value'] );