diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/blocks/navigation.php --- a/wp/wp-includes/blocks/navigation.php Thu Sep 29 08:06:27 2022 +0200 +++ b/wp/wp-includes/blocks/navigation.php Fri Sep 05 18:40:08 2025 +0200 @@ -5,12 +5,730 @@ * @package WordPress */ +/** + * Helper functions used to render the navigation block. + * + * @since 6.5.0 + */ +class WP_Navigation_Block_Renderer { + + /** + * Used to determine whether or not a navigation has submenus. + * + * @since 6.5.0 + */ + private static $has_submenus = false; + + /** + * Used to determine which blocks need an
  • wrapper. + * + * @since 6.5.0 + * + * @var array + */ + private static $needs_list_item_wrapper = array( + 'core/site-title', + 'core/site-logo', + 'core/social-links', + ); + + /** + * Keeps track of all the navigation names that have been seen. + * + * @since 6.5.0 + * + * @var array + */ + private static $seen_menu_names = array(); + + /** + * Returns whether or not this is responsive navigation. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @return bool Returns whether or not this is responsive navigation. + */ + private static function is_responsive( $attributes ) { + /** + * This is for backwards compatibility after the `isResponsive` attribute was been removed. + */ + + $has_old_responsive_attribute = ! empty( $attributes['isResponsive'] ) && $attributes['isResponsive']; + return isset( $attributes['overlayMenu'] ) && 'never' !== $attributes['overlayMenu'] || $has_old_responsive_attribute; + } + + /** + * Returns whether or not a navigation has a submenu. + * + * @since 6.5.0 + * + * @param WP_Block_List $inner_blocks The list of inner blocks. + * @return bool Returns whether or not a navigation has a submenu and also sets the member variable. + */ + private static function has_submenus( $inner_blocks ) { + if ( true === static::$has_submenus ) { + return static::$has_submenus; + } + + foreach ( $inner_blocks as $inner_block ) { + // If this is a page list then work out if any of the pages have children. + if ( 'core/page-list' === $inner_block->name ) { + $all_pages = get_pages( + array( + 'sort_column' => 'menu_order,post_title', + 'order' => 'asc', + ) + ); + foreach ( (array) $all_pages as $page ) { + if ( $page->post_parent ) { + static::$has_submenus = true; + break; + } + } + } + // If this is a navigation submenu then we know we have submenus. + if ( 'core/navigation-submenu' === $inner_block->name ) { + static::$has_submenus = true; + break; + } + } + + return static::$has_submenus; + } + + /** + * Determine whether the navigation blocks is interactive. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @param WP_Block_List $inner_blocks The list of inner blocks. + * @return bool Returns whether or not to load the view script. + */ + private static function is_interactive( $attributes, $inner_blocks ) { + $has_submenus = static::has_submenus( $inner_blocks ); + $is_responsive_menu = static::is_responsive( $attributes ); + return ( $has_submenus && ( $attributes['openSubmenusOnClick'] || $attributes['showSubmenuIcon'] ) ) || $is_responsive_menu; + } + + /** + * Returns whether or not a block needs a list item wrapper. + * + * @since 6.5.0 + * + * @param WP_Block $block The block. + * @return bool Returns whether or not a block needs a list item wrapper. + */ + private static function does_block_need_a_list_item_wrapper( $block ) { + + /** + * Filter the list of blocks that need a list item wrapper. + * + * Affords the ability to customize which blocks need a list item wrapper when rendered + * within a core/navigation block. + * This is useful for blocks that are not list items but should be wrapped in a list + * item when used as a child of a navigation block. + * + * @since 6.5.0 + * + * @param array $needs_list_item_wrapper The list of blocks that need a list item wrapper. + * @return array The list of blocks that need a list item wrapper. + */ + $needs_list_item_wrapper = apply_filters( 'block_core_navigation_listable_blocks', static::$needs_list_item_wrapper ); + + return in_array( $block->name, $needs_list_item_wrapper, true ); + } + + /** + * Returns the markup for a single inner block. + * + * @since 6.5.0 + * + * @param WP_Block $inner_block The inner block. + * @return string Returns the markup for a single inner block. + */ + private static function get_markup_for_inner_block( $inner_block ) { + $inner_block_content = $inner_block->render(); + if ( ! empty( $inner_block_content ) ) { + if ( static::does_block_need_a_list_item_wrapper( $inner_block ) ) { + return '
  • ' . $inner_block_content . '
    • '; + } + } + + return $inner_block_content; + } + + /** + * Returns the html for the inner blocks of the navigation block. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @param WP_Block_List $inner_blocks The list of inner blocks. + * @return string Returns the html for the inner blocks of the navigation block. + */ + private static function get_inner_blocks_html( $attributes, $inner_blocks ) { + $has_submenus = static::has_submenus( $inner_blocks ); + $is_interactive = static::is_interactive( $attributes, $inner_blocks ); + + $style = static::get_styles( $attributes ); + $class = static::get_classes( $attributes ); + $container_attributes = get_block_wrapper_attributes( + array( + 'class' => 'wp-block-navigation__container ' . $class, + 'style' => $style, + ) + ); + + $inner_blocks_html = ''; + $is_list_open = false; + + foreach ( $inner_blocks as $inner_block ) { + $inner_block_markup = static::get_markup_for_inner_block( $inner_block ); + $p = new WP_HTML_Tag_Processor( $inner_block_markup ); + $is_list_item = $p->next_tag( 'LI' ); + + if ( $is_list_item && ! $is_list_open ) { + $is_list_open = true; + $inner_blocks_html .= sprintf( + ''; + } + + $inner_blocks_html .= $inner_block_markup; + } + + if ( $is_list_open ) { + $inner_blocks_html .= ''; + } + + // Add directives to the submenu if needed. + if ( $has_submenus && $is_interactive ) { + $tags = new WP_HTML_Tag_Processor( $inner_blocks_html ); + $inner_blocks_html = block_core_navigation_add_directives_to_submenu( $tags, $attributes ); + } + + return $inner_blocks_html; + } + + /** + * Gets the inner blocks for the navigation block from the navigation post. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @return WP_Block_List Returns the inner blocks for the navigation block. + */ + private static function get_inner_blocks_from_navigation_post( $attributes ) { + $navigation_post = get_post( $attributes['ref'] ); + if ( ! isset( $navigation_post ) ) { + return new WP_Block_List( array(), $attributes ); + } + + // Only published posts are valid. If this is changed then a corresponding change + // must also be implemented in `use-navigation-menu.js`. + if ( 'publish' === $navigation_post->post_status ) { + $parsed_blocks = parse_blocks( $navigation_post->post_content ); + + // 'parse_blocks' includes a null block with '\n\n' as the content when + // it encounters whitespace. This code strips it. + $blocks = block_core_navigation_filter_out_empty_blocks( $parsed_blocks ); + + if ( function_exists( 'set_ignored_hooked_blocks_metadata' ) ) { + // Run Block Hooks algorithm to inject hooked blocks. + $markup = block_core_navigation_insert_hooked_blocks( $blocks, $navigation_post ); + $root_nav_block = parse_blocks( $markup )[0]; + + $blocks = isset( $root_nav_block['innerBlocks'] ) ? $root_nav_block['innerBlocks'] : $blocks; + } + + // TODO - this uses the full navigation block attributes for the + // context which could be refined. + return new WP_Block_List( $blocks, $attributes ); + } + } + + /** + * Gets the inner blocks for the navigation block from the fallback. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @return WP_Block_List Returns the inner blocks for the navigation block. + */ + private static function get_inner_blocks_from_fallback( $attributes ) { + $fallback_blocks = block_core_navigation_get_fallback_blocks(); + + // Fallback my have been filtered so do basic test for validity. + if ( empty( $fallback_blocks ) || ! is_array( $fallback_blocks ) ) { + return new WP_Block_List( array(), $attributes ); + } + + return new WP_Block_List( $fallback_blocks, $attributes ); + } + + /** + * Gets the inner blocks for the navigation block. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @param WP_Block $block The parsed block. + * @return WP_Block_List Returns the inner blocks for the navigation block. + */ + private static function get_inner_blocks( $attributes, $block ) { + $inner_blocks = $block->inner_blocks; + + // Ensure that blocks saved with the legacy ref attribute name (navigationMenuId) continue to render. + if ( array_key_exists( 'navigationMenuId', $attributes ) ) { + $attributes['ref'] = $attributes['navigationMenuId']; + } + + // If: + // - the gutenberg plugin is active + // - `__unstableLocation` is defined + // - we have menu items at the defined location + // - we don't have a relationship to a `wp_navigation` Post (via `ref`). + // ...then create inner blocks from the classic menu assigned to that location. + if ( + defined( 'IS_GUTENBERG_PLUGIN' ) && IS_GUTENBERG_PLUGIN && + array_key_exists( '__unstableLocation', $attributes ) && + ! array_key_exists( 'ref', $attributes ) && + ! empty( block_core_navigation_get_menu_items_at_location( $attributes['__unstableLocation'] ) ) + ) { + $inner_blocks = block_core_navigation_get_inner_blocks_from_unstable_location( $attributes ); + } + + // Load inner blocks from the navigation post. + if ( array_key_exists( 'ref', $attributes ) ) { + $inner_blocks = static::get_inner_blocks_from_navigation_post( $attributes ); + } + + // If there are no inner blocks then fallback to rendering an appropriate fallback. + if ( empty( $inner_blocks ) ) { + $inner_blocks = static::get_inner_blocks_from_fallback( $attributes ); + } + + /** + * Filter navigation block $inner_blocks. + * Allows modification of a navigation block menu items. + * + * @since 6.1.0 + * + * @param \WP_Block_List $inner_blocks + */ + $inner_blocks = apply_filters( 'block_core_navigation_render_inner_blocks', $inner_blocks ); + + $post_ids = block_core_navigation_get_post_ids( $inner_blocks ); + if ( $post_ids ) { + _prime_post_caches( $post_ids, false, false ); + } + + return $inner_blocks; + } + + /** + * Gets the name of the current navigation, if it has one. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @return string Returns the name of the navigation. + */ + private static function get_navigation_name( $attributes ) { + + $navigation_name = $attributes['ariaLabel'] ?? ''; + + // Load the navigation post. + if ( array_key_exists( 'ref', $attributes ) ) { + $navigation_post = get_post( $attributes['ref'] ); + if ( ! isset( $navigation_post ) ) { + return $navigation_name; + } + + // Only published posts are valid. If this is changed then a corresponding change + // must also be implemented in `use-navigation-menu.js`. + if ( 'publish' === $navigation_post->post_status ) { + $navigation_name = $navigation_post->post_title; + + // This is used to count the number of times a navigation name has been seen, + // so that we can ensure every navigation has a unique id. + if ( isset( static::$seen_menu_names[ $navigation_name ] ) ) { + ++static::$seen_menu_names[ $navigation_name ]; + } else { + static::$seen_menu_names[ $navigation_name ] = 1; + } + } + } + + return $navigation_name; + } + + /** + * Returns the layout class for the navigation block. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @return string Returns the layout class for the navigation block. + */ + private static function get_layout_class( $attributes ) { + $layout_justification = array( + 'left' => 'items-justified-left', + 'right' => 'items-justified-right', + 'center' => 'items-justified-center', + 'space-between' => 'items-justified-space-between', + ); + + $layout_class = ''; + if ( + isset( $attributes['layout']['justifyContent'] ) && + isset( $layout_justification[ $attributes['layout']['justifyContent'] ] ) + ) { + $layout_class .= $layout_justification[ $attributes['layout']['justifyContent'] ]; + } + if ( isset( $attributes['layout']['orientation'] ) && 'vertical' === $attributes['layout']['orientation'] ) { + $layout_class .= ' is-vertical'; + } + + if ( isset( $attributes['layout']['flexWrap'] ) && 'nowrap' === $attributes['layout']['flexWrap'] ) { + $layout_class .= ' no-wrap'; + } + return $layout_class; + } + + /** + * Return classes for the navigation block. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @return string Returns the classes for the navigation block. + */ + private static function get_classes( $attributes ) { + // Restore legacy classnames for submenu positioning. + $layout_class = static::get_layout_class( $attributes ); + $colors = block_core_navigation_build_css_colors( $attributes ); + $font_sizes = block_core_navigation_build_css_font_sizes( $attributes ); + $is_responsive_menu = static::is_responsive( $attributes ); + + // Manually add block support text decoration as CSS class. + $text_decoration = $attributes['style']['typography']['textDecoration'] ?? null; + $text_decoration_class = sprintf( 'has-text-decoration-%s', $text_decoration ); + + $classes = array_merge( + $colors['css_classes'], + $font_sizes['css_classes'], + $is_responsive_menu ? array( 'is-responsive' ) : array(), + $layout_class ? array( $layout_class ) : array(), + $text_decoration ? array( $text_decoration_class ) : array() + ); + return implode( ' ', $classes ); + } + + /** + * Get styles for the navigation block. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @return string Returns the styles for the navigation block. + */ + private static function get_styles( $attributes ) { + $colors = block_core_navigation_build_css_colors( $attributes ); + $font_sizes = block_core_navigation_build_css_font_sizes( $attributes ); + $block_styles = isset( $attributes['styles'] ) ? $attributes['styles'] : ''; + return $block_styles . $colors['inline_styles'] . $font_sizes['inline_styles']; + } + + /** + * Get the responsive container markup + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @param WP_Block_List $inner_blocks The list of inner blocks. + * @param string $inner_blocks_html The markup for the inner blocks. + * @return string Returns the container markup. + */ + private static function get_responsive_container_markup( $attributes, $inner_blocks, $inner_blocks_html ) { + $is_interactive = static::is_interactive( $attributes, $inner_blocks ); + $colors = block_core_navigation_build_css_colors( $attributes ); + $modal_unique_id = wp_unique_id( 'modal-' ); + + $is_hidden_by_default = isset( $attributes['overlayMenu'] ) && 'always' === $attributes['overlayMenu']; + + $responsive_container_classes = array( + 'wp-block-navigation__responsive-container', + $is_hidden_by_default ? 'hidden-by-default' : '', + implode( ' ', $colors['overlay_css_classes'] ), + ); + $open_button_classes = array( + 'wp-block-navigation__responsive-container-open', + $is_hidden_by_default ? 'always-shown' : '', + ); + + $should_display_icon_label = isset( $attributes['hasIcon'] ) && true === $attributes['hasIcon']; + $toggle_button_icon = ''; + if ( isset( $attributes['icon'] ) ) { + if ( 'menu' === $attributes['icon'] ) { + $toggle_button_icon = ''; + } + } + $toggle_button_content = $should_display_icon_label ? $toggle_button_icon : __( 'Menu' ); + $toggle_close_button_icon = ''; + $toggle_close_button_content = $should_display_icon_label ? $toggle_close_button_icon : __( 'Close' ); + $toggle_aria_label_open = $should_display_icon_label ? 'aria-label="' . __( 'Open menu' ) . '"' : ''; // Open button label. + $toggle_aria_label_close = $should_display_icon_label ? 'aria-label="' . __( 'Close menu' ) . '"' : ''; // Close button label. + + // Add Interactivity API directives to the markup if needed. + $open_button_directives = ''; + $responsive_container_directives = ''; + $responsive_dialog_directives = ''; + $close_button_directives = ''; + if ( $is_interactive ) { + $open_button_directives = ' + data-wp-on-async--click="actions.openMenuOnClick" + data-wp-on--keydown="actions.handleMenuKeydown" + '; + $responsive_container_directives = ' + data-wp-class--has-modal-open="state.isMenuOpen" + data-wp-class--is-menu-open="state.isMenuOpen" + data-wp-watch="callbacks.initMenu" + data-wp-on--keydown="actions.handleMenuKeydown" + data-wp-on-async--focusout="actions.handleMenuFocusout" + tabindex="-1" + '; + $responsive_dialog_directives = ' + data-wp-bind--aria-modal="state.ariaModal" + data-wp-bind--aria-label="state.ariaLabel" + data-wp-bind--role="state.roleAttribute" + '; + $close_button_directives = ' + data-wp-on-async--click="actions.closeMenuOnClick" + '; + $responsive_container_content_directives = ' + data-wp-watch="callbacks.focusFirstElement" + '; + } + + $overlay_inline_styles = esc_attr( safecss_filter_attr( $colors['overlay_inline_styles'] ) ); + + return sprintf( + ' +
    +
    +
    + +
    + %2$s +
    +
    +
    +
    ', + esc_attr( $modal_unique_id ), + $inner_blocks_html, + $toggle_aria_label_open, + $toggle_aria_label_close, + esc_attr( implode( ' ', $responsive_container_classes ) ), + esc_attr( implode( ' ', $open_button_classes ) ), + ( ! empty( $overlay_inline_styles ) ) ? "style=\"$overlay_inline_styles\"" : '', + $toggle_button_content, + $toggle_close_button_content, + $open_button_directives, + $responsive_container_directives, + $responsive_dialog_directives, + $close_button_directives, + $responsive_container_content_directives + ); + } + + /** + * Get the wrapper attributes + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @param WP_Block_List $inner_blocks A list of inner blocks. + * @return string Returns the navigation block markup. + */ + private static function get_nav_wrapper_attributes( $attributes, $inner_blocks ) { + $nav_menu_name = static::get_unique_navigation_name( $attributes ); + $is_interactive = static::is_interactive( $attributes, $inner_blocks ); + $is_responsive_menu = static::is_responsive( $attributes ); + $style = static::get_styles( $attributes ); + $class = static::get_classes( $attributes ); + $wrapper_attributes = get_block_wrapper_attributes( + array( + 'class' => $class, + 'style' => $style, + 'aria-label' => $nav_menu_name, + ) + ); + + if ( $is_responsive_menu ) { + $nav_element_directives = static::get_nav_element_directives( $is_interactive ); + $wrapper_attributes .= ' ' . $nav_element_directives; + } + + return $wrapper_attributes; + } + + /** + * Gets the nav element directives. + * + * @since 6.5.0 + * + * @param bool $is_interactive Whether the block is interactive. + * @return string the directives for the navigation element. + */ + private static function get_nav_element_directives( $is_interactive ) { + if ( ! $is_interactive ) { + return ''; + } + // When adding to this array be mindful of security concerns. + $nav_element_context = wp_interactivity_data_wp_context( + array( + 'overlayOpenedBy' => array( + 'click' => false, + 'hover' => false, + 'focus' => false, + ), + 'type' => 'overlay', + 'roleAttribute' => '', + 'ariaLabel' => __( 'Menu' ), + ) + ); + $nav_element_directives = ' + data-wp-interactive="core/navigation" ' + . $nav_element_context; + + return $nav_element_directives; + } + + /** + * Handle view script module loading. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @param WP_Block $block The parsed block. + * @param WP_Block_List $inner_blocks The list of inner blocks. + */ + private static function handle_view_script_module_loading( $attributes, $block, $inner_blocks ) { + if ( static::is_interactive( $attributes, $inner_blocks ) ) { + $suffix = wp_scripts_get_suffix(); + if ( defined( 'IS_GUTENBERG_PLUGIN' ) && IS_GUTENBERG_PLUGIN ) { + $module_url = gutenberg_url( '/build/interactivity/navigation.min.js' ); + } + + wp_register_script_module( + '@wordpress/block-library/navigation', + isset( $module_url ) ? $module_url : includes_url( "blocks/navigation/view{$suffix}.js" ), + array( '@wordpress/interactivity' ), + defined( 'GUTENBERG_VERSION' ) ? GUTENBERG_VERSION : get_bloginfo( 'version' ) + ); + wp_enqueue_script_module( '@wordpress/block-library/navigation' ); + } + } + + /** + * Returns the markup for the navigation block. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @param WP_Block_List $inner_blocks The list of inner blocks. + * @return string Returns the navigation wrapper markup. + */ + private static function get_wrapper_markup( $attributes, $inner_blocks ) { + $inner_blocks_html = static::get_inner_blocks_html( $attributes, $inner_blocks ); + if ( static::is_responsive( $attributes ) ) { + return static::get_responsive_container_markup( $attributes, $inner_blocks, $inner_blocks_html ); + } + return $inner_blocks_html; + } + + /** + * Returns a unique name for the navigation. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @return string Returns a unique name for the navigation. + */ + private static function get_unique_navigation_name( $attributes ) { + $nav_menu_name = static::get_navigation_name( $attributes ); + + // If the menu name has been used previously then append an ID + // to the name to ensure uniqueness across a given post. + if ( isset( static::$seen_menu_names[ $nav_menu_name ] ) && static::$seen_menu_names[ $nav_menu_name ] > 1 ) { + $count = static::$seen_menu_names[ $nav_menu_name ]; + $nav_menu_name = $nav_menu_name . ' ' . ( $count ); + } + + return $nav_menu_name; + } + + /** + * Renders the navigation block. + * + * @since 6.5.0 + * + * @param array $attributes The block attributes. + * @param string $content The saved content. + * @param WP_Block $block The parsed block. + * @return string Returns the navigation block markup. + */ + public static function render( $attributes, $content, $block ) { + /** + * Deprecated: + * The rgbTextColor and rgbBackgroundColor attributes + * have been deprecated in favor of + * customTextColor and customBackgroundColor ones. + * Move the values from old attrs to the new ones. + */ + if ( isset( $attributes['rgbTextColor'] ) && empty( $attributes['textColor'] ) ) { + $attributes['customTextColor'] = $attributes['rgbTextColor']; + } + + if ( isset( $attributes['rgbBackgroundColor'] ) && empty( $attributes['backgroundColor'] ) ) { + $attributes['customBackgroundColor'] = $attributes['rgbBackgroundColor']; + } + + unset( $attributes['rgbTextColor'], $attributes['rgbBackgroundColor'] ); + + $inner_blocks = static::get_inner_blocks( $attributes, $block ); + // Prevent navigation blocks referencing themselves from rendering. + if ( block_core_navigation_block_contains_core_navigation( $inner_blocks ) ) { + return ''; + } + + static::handle_view_script_module_loading( $attributes, $block, $inner_blocks ); + + return sprintf( + '', + static::get_nav_wrapper_attributes( $attributes, $inner_blocks ), + static::get_wrapper_markup( $attributes, $inner_blocks ) + ); + } +} + // These functions are used for the __unstableLocation feature and only active // when the gutenberg plugin is active. if ( defined( 'IS_GUTENBERG_PLUGIN' ) && IS_GUTENBERG_PLUGIN ) { /** * Returns the menu items for a WordPress menu location. * + * @since 5.9.0 + * * @param string $location The menu location. * @return array Menu items for the location. */ @@ -47,6 +765,8 @@ * Sorts a standard array of menu items into a nested structure keyed by the * id of the parent menu. * + * @since 5.9.0 + * * @param array $menu_items Menu items to sort. * @return array An array keyed by the id of the parent menu where each element * is an array of menu items that belong to that parent. @@ -67,62 +787,94 @@ } /** - * Turns menu item data into a nested array of parsed blocks + * Gets the inner blocks for the navigation block from the unstable location attribute. + * + * @since 6.5.0 * - * @param array $menu_items An array of menu items that represent - * an individual level of a menu. - * @param array $menu_items_by_parent_id An array keyed by the id of the - * parent menu where each element is an - * array of menu items that belong to - * that parent. - * @return array An array of parsed block data. + * @param array $attributes The block attributes. + * @return WP_Block_List Returns the inner blocks for the navigation block. */ - function block_core_navigation_parse_blocks_from_menu_items( $menu_items, $menu_items_by_parent_id ) { + function block_core_navigation_get_inner_blocks_from_unstable_location( $attributes ) { + $menu_items = block_core_navigation_get_menu_items_at_location( $attributes['__unstableLocation'] ); if ( empty( $menu_items ) ) { - return array(); + return new WP_Block_List( array(), $attributes ); } - $blocks = array(); - - foreach ( $menu_items as $menu_item ) { - $class_name = ! empty( $menu_item->classes ) ? implode( ' ', (array) $menu_item->classes ) : null; - $id = ( null !== $menu_item->object_id && 'custom' !== $menu_item->object ) ? $menu_item->object_id : null; - $opens_in_new_tab = null !== $menu_item->target && '_blank' === $menu_item->target; - $rel = ( null !== $menu_item->xfn && '' !== $menu_item->xfn ) ? $menu_item->xfn : null; - $kind = null !== $menu_item->type ? str_replace( '_', '-', $menu_item->type ) : 'custom'; + $menu_items_by_parent_id = block_core_navigation_sort_menu_items_by_parent_id( $menu_items ); + $parsed_blocks = block_core_navigation_parse_blocks_from_menu_items( $menu_items_by_parent_id[0], $menu_items_by_parent_id ); + return new WP_Block_List( $parsed_blocks, $attributes ); + } +} - $block = array( - 'blockName' => isset( $menu_items_by_parent_id[ $menu_item->ID ] ) ? 'core/navigation-submenu' : 'core/navigation-link', - 'attrs' => array( - 'className' => $class_name, - 'description' => $menu_item->description, - 'id' => $id, - 'kind' => $kind, - 'label' => $menu_item->title, - 'opensInNewTab' => $opens_in_new_tab, - 'rel' => $rel, - 'title' => $menu_item->attr_title, - 'type' => $menu_item->object, - 'url' => $menu_item->url, - ), - ); +/** + * Add Interactivity API directives to the navigation-submenu and page-list + * blocks markup using the Tag Processor. + * + * @since 6.3.0 + * + * @param WP_HTML_Tag_Processor $tags Markup of the navigation block. + * @param array $block_attributes Block attributes. + * + * @return string Submenu markup with the directives injected. + */ +function block_core_navigation_add_directives_to_submenu( $tags, $block_attributes ) { + while ( $tags->next_tag( + array( + 'tag_name' => 'LI', + 'class_name' => 'has-child', + ) + ) ) { + // Add directives to the parent `
  • `. + $tags->set_attribute( 'data-wp-interactive', 'core/navigation' ); + $tags->set_attribute( 'data-wp-context', '{ "submenuOpenedBy": { "click": false, "hover": false, "focus": false }, "type": "submenu" }' ); + $tags->set_attribute( 'data-wp-watch', 'callbacks.initMenu' ); + $tags->set_attribute( 'data-wp-on--focusout', 'actions.handleMenuFocusout' ); + $tags->set_attribute( 'data-wp-on--keydown', 'actions.handleMenuKeydown' ); - $block['innerBlocks'] = isset( $menu_items_by_parent_id[ $menu_item->ID ] ) - ? block_core_navigation_parse_blocks_from_menu_items( $menu_items_by_parent_id[ $menu_item->ID ], $menu_items_by_parent_id ) - : array(); - $block['innerContent'] = array_map( 'serialize_block', $block['innerBlocks'] ); + // This is a fix for Safari. Without it, Safari doesn't change the active + // element when the user clicks on a button. It can be removed once we add + // an overlay to capture the clicks, instead of relying on the focusout + // event. + $tags->set_attribute( 'tabindex', '-1' ); - $blocks[] = $block; + if ( ! isset( $block_attributes['openSubmenusOnClick'] ) || false === $block_attributes['openSubmenusOnClick'] ) { + $tags->set_attribute( 'data-wp-on-async--mouseenter', 'actions.openMenuOnHover' ); + $tags->set_attribute( 'data-wp-on-async--mouseleave', 'actions.closeMenuOnHover' ); } - return $blocks; + // Add directives to the toggle submenu button. + if ( $tags->next_tag( + array( + 'tag_name' => 'BUTTON', + 'class_name' => 'wp-block-navigation-submenu__toggle', + ) + ) ) { + $tags->set_attribute( 'data-wp-on-async--click', 'actions.toggleMenuOnClick' ); + $tags->set_attribute( 'data-wp-bind--aria-expanded', 'state.isMenuOpen' ); + // The `aria-expanded` attribute for SSR is already added in the submenu block. + } + // Add directives to the submenu. + if ( $tags->next_tag( + array( + 'tag_name' => 'UL', + 'class_name' => 'wp-block-navigation__submenu-container', + ) + ) ) { + $tags->set_attribute( 'data-wp-on-async--focus', 'actions.openMenuOnFocus' ); + } + + // Iterate through subitems if exist. + block_core_navigation_add_directives_to_submenu( $tags, $block_attributes ); } + return $tags->get_updated_html(); } /** * Build an array with CSS classes and inline styles defining the colors * which will be applied to the navigation markup in the front-end. * + * @since 5.9.0 + * * @param array $attributes Navigation block attributes. * * @return array Colors CSS classes and inline styles. @@ -214,6 +966,8 @@ * Build an array with CSS classes and inline styles defining the font sizes * which will be applied to the navigation markup in the front-end. * + * @since 5.9.0 + * * @param array $attributes Navigation block attributes. * * @return array Font size CSS classes and inline styles. @@ -242,55 +996,29 @@ /** * Returns the top-level submenu SVG chevron icon. * + * @since 5.9.0 + * * @return string */ function block_core_navigation_render_submenu_icon() { return ''; } - -/** - * Finds the first non-empty `wp_navigation` Post. - * - * @return WP_Post|null the first non-empty Navigation or null. - */ -function block_core_navigation_get_first_non_empty_navigation() { - // Order and orderby args set to mirror those in `wp_get_nav_menus` - // see: - // - https://github.com/WordPress/wordpress-develop/blob/ba943e113d3b31b121f77a2d30aebe14b047c69d/src/wp-includes/nav-menu.php#L613-L619. - // - https://developer.wordpress.org/reference/classes/wp_query/#order-orderby-parameters. - $parsed_args = array( - 'post_type' => 'wp_navigation', - 'no_found_rows' => true, - 'order' => 'ASC', - 'orderby' => 'name', - 'post_status' => 'publish', - 'posts_per_page' => 20, // Try the first 20 posts. - ); - - $navigation_posts = new WP_Query( $parsed_args ); - foreach ( $navigation_posts->posts as $navigation_post ) { - if ( has_blocks( $navigation_post ) ) { - return $navigation_post; - } - } - - return null; -} - /** * Filter out empty "null" blocks from the block list. * 'parse_blocks' includes a null block with '\n\n' as the content when * it encounters whitespace. This is not a bug but rather how the parser * is designed. * + * @since 5.9.0 + * * @param array $parsed_blocks the parsed blocks to be normalized. * @return array the normalized parsed blocks. */ function block_core_navigation_filter_out_empty_blocks( $parsed_blocks ) { $filtered = array_filter( $parsed_blocks, - function( $block ) { + static function ( $block ) { return isset( $block['blockName'] ); } ); @@ -300,21 +1028,43 @@ } /** + * Returns true if the navigation block contains a nested navigation block. + * + * @since 6.2.0 + * + * @param WP_Block_List $inner_blocks Inner block instance to be normalized. + * @return bool true if the navigation block contains a nested navigation block. + */ +function block_core_navigation_block_contains_core_navigation( $inner_blocks ) { + foreach ( $inner_blocks as $block ) { + if ( 'core/navigation' === $block->name ) { + return true; + } + if ( $block->inner_blocks && block_core_navigation_block_contains_core_navigation( $block->inner_blocks ) ) { + return true; + } + } + + return false; +} + +/** * Retrieves the appropriate fallback to be used on the front of the * site when there is no menu assigned to the Nav block. * * This aims to mirror how the fallback mechanic for wp_nav_menu works. * See https://developer.wordpress.org/reference/functions/wp_nav_menu/#more-information. * + * @since 5.9.0 + * * @return array the array of blocks to be used as a fallback. */ function block_core_navigation_get_fallback_blocks() { $page_list_fallback = array( array( - 'blockName' => 'core/page-list', - 'attrs' => array( - '__unstableMaxPages' => 4, - ), + 'blockName' => 'core/page-list', + 'innerContent' => array(), + 'attrs' => array(), ), ); @@ -322,18 +1072,27 @@ // If `core/page-list` is not registered then return empty blocks. $fallback_blocks = $registry->is_registered( 'core/page-list' ) ? $page_list_fallback : array(); - - // Default to a list of Pages. + $navigation_post = WP_Navigation_Fallback::get_fallback(); - $navigation_post = block_core_navigation_get_first_non_empty_navigation(); - - // Prefer using the first non-empty Navigation as fallback if available. + // Use the first non-empty Navigation as fallback if available. if ( $navigation_post ) { - $maybe_fallback = block_core_navigation_filter_out_empty_blocks( parse_blocks( $navigation_post->post_content ) ); + $parsed_blocks = parse_blocks( $navigation_post->post_content ); + $maybe_fallback = block_core_navigation_filter_out_empty_blocks( $parsed_blocks ); // Normalizing blocks may result in an empty array of blocks if they were all `null` blocks. // In this case default to the (Page List) fallback. $fallback_blocks = ! empty( $maybe_fallback ) ? $maybe_fallback : $fallback_blocks; + + if ( function_exists( 'set_ignored_hooked_blocks_metadata' ) ) { + // Run Block Hooks algorithm to inject hooked blocks. + // We have to run it here because we need the post ID of the Navigation block to track ignored hooked blocks. + $markup = block_core_navigation_insert_hooked_blocks( $fallback_blocks, $navigation_post ); + $blocks = parse_blocks( $markup ); + + if ( isset( $blocks[0]['innerBlocks'] ) ) { + $fallback_blocks = $blocks[0]['innerBlocks']; + } + } } /** @@ -345,7 +1104,7 @@ * * @since 5.9.0 * - * @param array[] default fallback blocks provided by the default block mechanic. + * @param array[] $fallback_blocks default fallback blocks provided by the default block mechanic. */ return apply_filters( 'block_core_navigation_render_fallback', $fallback_blocks ); } @@ -353,6 +1112,8 @@ /** * Iterate through all inner blocks recursively and get navigation link block's post IDs. * + * @since 6.0.0 + * * @param WP_Block_List $inner_blocks Block list class instance. * * @return array Array of post IDs. @@ -365,6 +1126,8 @@ /** * Get post IDs from a navigation link block instance. * + * @since 6.0.0 + * * @param WP_Block $block Instance of a block. * * @return array Array of post IDs. @@ -377,7 +1140,7 @@ } if ( 'core/navigation-link' === $block->name || 'core/navigation-submenu' === $block->name ) { - if ( $block->attributes && isset( $block->attributes['kind'] ) && 'post-type' === $block->attributes['kind'] ) { + if ( $block->attributes && isset( $block->attributes['kind'] ) && 'post-type' === $block->attributes['kind'] && isset( $block->attributes['id'] ) ) { $post_ids[] = $block->attributes['id']; } } @@ -388,259 +1151,23 @@ /** * Renders the `core/navigation` block on server. * + * @since 5.9.0 + * * @param array $attributes The block attributes. * @param string $content The saved content. * @param WP_Block $block The parsed block. * - * @return string Returns the post content with the legacy widget added. + * @return string Returns the navigation block markup. */ function render_block_core_navigation( $attributes, $content, $block ) { - - static $seen_menu_names = array(); - - // Flag used to indicate whether the rendered output is considered to be - // a fallback (i.e. the block has no menu associated with it). - $is_fallback = false; - - $nav_menu_name = ''; - - /** - * Deprecated: - * The rgbTextColor and rgbBackgroundColor attributes - * have been deprecated in favor of - * customTextColor and customBackgroundColor ones. - * Move the values from old attrs to the new ones. - */ - if ( isset( $attributes['rgbTextColor'] ) && empty( $attributes['textColor'] ) ) { - $attributes['customTextColor'] = $attributes['rgbTextColor']; - } - - if ( isset( $attributes['rgbBackgroundColor'] ) && empty( $attributes['backgroundColor'] ) ) { - $attributes['customBackgroundColor'] = $attributes['rgbBackgroundColor']; - } - - unset( $attributes['rgbTextColor'], $attributes['rgbBackgroundColor'] ); - - /** - * This is for backwards compatibility after `isResponsive` attribute has been removed. - */ - $has_old_responsive_attribute = ! empty( $attributes['isResponsive'] ) && $attributes['isResponsive']; - $is_responsive_menu = isset( $attributes['overlayMenu'] ) && 'never' !== $attributes['overlayMenu'] || $has_old_responsive_attribute; - $should_load_view_script = ! wp_script_is( 'wp-block-navigation-view' ) && ( $is_responsive_menu || $attributes['openSubmenusOnClick'] || $attributes['showSubmenuIcon'] ); - if ( $should_load_view_script ) { - wp_enqueue_script( 'wp-block-navigation-view' ); - } - - $inner_blocks = $block->inner_blocks; - - // Ensure that blocks saved with the legacy ref attribute name (navigationMenuId) continue to render. - if ( array_key_exists( 'navigationMenuId', $attributes ) ) { - $attributes['ref'] = $attributes['navigationMenuId']; - } - - // If: - // - the gutenberg plugin is active - // - `__unstableLocation` is defined - // - we have menu items at the defined location - // - we don't have a relationship to a `wp_navigation` Post (via `ref`). - // ...then create inner blocks from the classic menu assigned to that location. - if ( - defined( 'IS_GUTENBERG_PLUGIN' ) && IS_GUTENBERG_PLUGIN && - array_key_exists( '__unstableLocation', $attributes ) && - ! array_key_exists( 'ref', $attributes ) && - ! empty( block_core_navigation_get_menu_items_at_location( $attributes['__unstableLocation'] ) ) - ) { - $menu_items = block_core_navigation_get_menu_items_at_location( $attributes['__unstableLocation'] ); - if ( empty( $menu_items ) ) { - return ''; - } - - $menu_items_by_parent_id = block_core_navigation_sort_menu_items_by_parent_id( $menu_items ); - $parsed_blocks = block_core_navigation_parse_blocks_from_menu_items( $menu_items_by_parent_id[0], $menu_items_by_parent_id ); - $inner_blocks = new WP_Block_List( $parsed_blocks, $attributes ); - } - - // Load inner blocks from the navigation post. - if ( array_key_exists( 'ref', $attributes ) ) { - $navigation_post = get_post( $attributes['ref'] ); - if ( ! isset( $navigation_post ) ) { - return ''; - } - - $nav_menu_name = $navigation_post->post_title; - - if ( isset( $seen_menu_names[ $nav_menu_name ] ) ) { - ++$seen_menu_names[ $nav_menu_name ]; - } else { - $seen_menu_names[ $nav_menu_name ] = 1; - } - - $parsed_blocks = parse_blocks( $navigation_post->post_content ); - - // 'parse_blocks' includes a null block with '\n\n' as the content when - // it encounters whitespace. This code strips it. - $compacted_blocks = block_core_navigation_filter_out_empty_blocks( $parsed_blocks ); - - // TODO - this uses the full navigation block attributes for the - // context which could be refined. - $inner_blocks = new WP_Block_List( $compacted_blocks, $attributes ); - } - - // If there are no inner blocks then fallback to rendering an appropriate fallback. - if ( empty( $inner_blocks ) ) { - $is_fallback = true; // indicate we are rendering the fallback. - - $fallback_blocks = block_core_navigation_get_fallback_blocks(); - - // Fallback my have been filtered so do basic test for validity. - if ( empty( $fallback_blocks ) || ! is_array( $fallback_blocks ) ) { - return ''; - } - - $inner_blocks = new WP_Block_List( $fallback_blocks, $attributes ); - - } - - $layout_justification = array( - 'left' => 'items-justified-left', - 'right' => 'items-justified-right', - 'center' => 'items-justified-center', - 'space-between' => 'items-justified-space-between', - ); - - // Restore legacy classnames for submenu positioning. - $layout_class = ''; - if ( isset( $attributes['layout']['justifyContent'] ) ) { - $layout_class .= $layout_justification[ $attributes['layout']['justifyContent'] ]; - } - if ( isset( $attributes['layout']['orientation'] ) && 'vertical' === $attributes['layout']['orientation'] ) { - $layout_class .= ' is-vertical'; - } - - if ( isset( $attributes['layout']['flexWrap'] ) && 'nowrap' === $attributes['layout']['flexWrap'] ) { - $layout_class .= ' no-wrap'; - } - - // Manually add block support text decoration as CSS class. - $text_decoration = _wp_array_get( $attributes, array( 'style', 'typography', 'textDecoration' ), null ); - $text_decoration_class = sprintf( 'has-text-decoration-%s', $text_decoration ); - - $colors = block_core_navigation_build_css_colors( $attributes ); - $font_sizes = block_core_navigation_build_css_font_sizes( $attributes ); - $classes = array_merge( - $colors['css_classes'], - $font_sizes['css_classes'], - $is_responsive_menu ? array( 'is-responsive' ) : array(), - $layout_class ? array( $layout_class ) : array(), - $is_fallback ? array( 'is-fallback' ) : array(), - $text_decoration ? array( $text_decoration_class ) : array() - ); - - $post_ids = block_core_navigation_get_post_ids( $inner_blocks ); - if ( $post_ids ) { - _prime_post_caches( $post_ids, false, false ); - } - - $inner_blocks_html = ''; - $is_list_open = false; - foreach ( $inner_blocks as $inner_block ) { - if ( ( 'core/navigation-link' === $inner_block->name || 'core/home-link' === $inner_block->name || 'core/site-title' === $inner_block->name || 'core/site-logo' === $inner_block->name || 'core/navigation-submenu' === $inner_block->name ) && ! $is_list_open ) { - $is_list_open = true; - $inner_blocks_html .= ''; - } - if ( 'core/site-title' === $inner_block->name || 'core/site-logo' === $inner_block->name ) { - $inner_blocks_html .= '
  • ' . $inner_block->render() . '
    • '; - } else { - $inner_blocks_html .= $inner_block->render(); - } - } - - if ( $is_list_open ) { - $inner_blocks_html .= ''; - } - - $block_styles = isset( $attributes['styles'] ) ? $attributes['styles'] : ''; - - // If the menu name has been used previously then append an ID - // to the name to ensure uniqueness across a given post. - if ( isset( $seen_menu_names[ $nav_menu_name ] ) && $seen_menu_names[ $nav_menu_name ] > 1 ) { - $count = $seen_menu_names[ $nav_menu_name ]; - $nav_menu_name = $nav_menu_name . ' ' . ( $count ); - } - - $wrapper_attributes = get_block_wrapper_attributes( - array( - 'class' => implode( ' ', $classes ), - 'style' => $block_styles . $colors['inline_styles'] . $font_sizes['inline_styles'], - 'aria-label' => $nav_menu_name, - ) - ); - - $modal_unique_id = wp_unique_id( 'modal-' ); - - // Determine whether or not navigation elements should be wrapped in the markup required to make it responsive, - // return early if they don't. - if ( ! $is_responsive_menu ) { - return sprintf( - '', - $wrapper_attributes, - $inner_blocks_html - ); - } - - $is_hidden_by_default = isset( $attributes['overlayMenu'] ) && 'always' === $attributes['overlayMenu']; - - $responsive_container_classes = array( - 'wp-block-navigation__responsive-container', - $is_hidden_by_default ? 'hidden-by-default' : '', - implode( ' ', $colors['overlay_css_classes'] ), - ); - $open_button_classes = array( - 'wp-block-navigation__responsive-container-open', - $is_hidden_by_default ? 'always-shown' : '', - ); - - $toggle_button_icon = ''; - $should_display_icon_label = isset( $attributes['hasIcon'] ) && true === $attributes['hasIcon']; - $toggle_button_content = $should_display_icon_label ? $toggle_button_icon : 'Menu'; - - $responsive_container_markup = sprintf( - ' -
    -
    -
    - -
    - %2$s -
    -
    -
    -
    ', - esc_attr( $modal_unique_id ), - $inner_blocks_html, - __( 'Open menu' ), // Open button label. - __( 'Close menu' ), // Close button label. - esc_attr( implode( ' ', $responsive_container_classes ) ), - esc_attr( implode( ' ', $open_button_classes ) ), - safecss_filter_attr( $colors['overlay_inline_styles'] ), - __( 'Menu' ), - $toggle_button_content - ); - - return sprintf( - '', - $wrapper_attributes, - $responsive_container_markup - ); + return WP_Navigation_Block_Renderer::render( $attributes, $content, $block ); } /** * Register the navigation block. * + * @since 5.9.0 + * * @uses render_block_core_navigation() * @throws WP_Error An WP_Error exception parsing the block definition. */ @@ -658,6 +1185,8 @@ /** * Filter that changes the parsed attribute values of navigation blocks contain typographic presets to contain the values directly. * + * @since 5.9.0 + * * @param array $parsed_block The block being rendered. * * @return array The block being rendered without typographic presets. @@ -688,3 +1217,474 @@ } add_filter( 'render_block_data', 'block_core_navigation_typographic_presets_backcompatibility' ); + +/** + * Turns menu item data into a nested array of parsed blocks + * + * @since 5.9.0 + * + * @deprecated 6.3.0 Use WP_Navigation_Fallback::parse_blocks_from_menu_items() instead. + * + * @param array $menu_items An array of menu items that represent + * an individual level of a menu. + * @param array $menu_items_by_parent_id An array keyed by the id of the + * parent menu where each element is an + * array of menu items that belong to + * that parent. + * @return array An array of parsed block data. + */ +function block_core_navigation_parse_blocks_from_menu_items( $menu_items, $menu_items_by_parent_id ) { + + _deprecated_function( __FUNCTION__, '6.3.0', 'WP_Navigation_Fallback::parse_blocks_from_menu_items' ); + + if ( empty( $menu_items ) ) { + return array(); + } + + $blocks = array(); + + foreach ( $menu_items as $menu_item ) { + $class_name = ! empty( $menu_item->classes ) ? implode( ' ', (array) $menu_item->classes ) : null; + $id = ( null !== $menu_item->object_id && 'custom' !== $menu_item->object ) ? $menu_item->object_id : null; + $opens_in_new_tab = null !== $menu_item->target && '_blank' === $menu_item->target; + $rel = ( null !== $menu_item->xfn && '' !== $menu_item->xfn ) ? $menu_item->xfn : null; + $kind = null !== $menu_item->type ? str_replace( '_', '-', $menu_item->type ) : 'custom'; + + $block = array( + 'blockName' => isset( $menu_items_by_parent_id[ $menu_item->ID ] ) ? 'core/navigation-submenu' : 'core/navigation-link', + 'attrs' => array( + 'className' => $class_name, + 'description' => $menu_item->description, + 'id' => $id, + 'kind' => $kind, + 'label' => $menu_item->title, + 'opensInNewTab' => $opens_in_new_tab, + 'rel' => $rel, + 'title' => $menu_item->attr_title, + 'type' => $menu_item->object, + 'url' => $menu_item->url, + ), + ); + + $block['innerBlocks'] = isset( $menu_items_by_parent_id[ $menu_item->ID ] ) + ? block_core_navigation_parse_blocks_from_menu_items( $menu_items_by_parent_id[ $menu_item->ID ], $menu_items_by_parent_id ) + : array(); + $block['innerContent'] = array_map( 'serialize_block', $block['innerBlocks'] ); + + $blocks[] = $block; + } + + return $blocks; +} + +/** + * Get the classic navigation menu to use as a fallback. + * + * @since 6.2.0 + * + * @deprecated 6.3.0 Use WP_Navigation_Fallback::get_classic_menu_fallback() instead. + * + * @return object WP_Term The classic navigation. + */ +function block_core_navigation_get_classic_menu_fallback() { + + _deprecated_function( __FUNCTION__, '6.3.0', 'WP_Navigation_Fallback::get_classic_menu_fallback' ); + + $classic_nav_menus = wp_get_nav_menus(); + + // If menus exist. + if ( $classic_nav_menus && ! is_wp_error( $classic_nav_menus ) ) { + // Handles simple use case where user has a classic menu and switches to a block theme. + + // Returns the menu assigned to location `primary`. + $locations = get_nav_menu_locations(); + if ( isset( $locations['primary'] ) ) { + $primary_menu = wp_get_nav_menu_object( $locations['primary'] ); + if ( $primary_menu ) { + return $primary_menu; + } + } + + // Returns a menu if `primary` is its slug. + foreach ( $classic_nav_menus as $classic_nav_menu ) { + if ( 'primary' === $classic_nav_menu->slug ) { + return $classic_nav_menu; + } + } + + // Otherwise return the most recently created classic menu. + usort( + $classic_nav_menus, + static function ( $a, $b ) { + return $b->term_id - $a->term_id; + } + ); + return $classic_nav_menus[0]; + } +} + +/** + * Converts a classic navigation to blocks. + * + * @since 6.2.0 + * + * @deprecated 6.3.0 Use WP_Navigation_Fallback::get_classic_menu_fallback_blocks() instead. + * + * @param object $classic_nav_menu WP_Term The classic navigation object to convert. + * @return array the normalized parsed blocks. + */ +function block_core_navigation_get_classic_menu_fallback_blocks( $classic_nav_menu ) { + + _deprecated_function( __FUNCTION__, '6.3.0', 'WP_Navigation_Fallback::get_classic_menu_fallback_blocks' ); + + // BEGIN: Code that already exists in wp_nav_menu(). + $menu_items = wp_get_nav_menu_items( $classic_nav_menu->term_id, array( 'update_post_term_cache' => false ) ); + + // Set up the $menu_item variables. + _wp_menu_item_classes_by_context( $menu_items ); + + $sorted_menu_items = array(); + foreach ( (array) $menu_items as $menu_item ) { + $sorted_menu_items[ $menu_item->menu_order ] = $menu_item; + } + + unset( $menu_items, $menu_item ); + + // END: Code that already exists in wp_nav_menu(). + + $menu_items_by_parent_id = array(); + foreach ( $sorted_menu_items as $menu_item ) { + $menu_items_by_parent_id[ $menu_item->menu_item_parent ][] = $menu_item; + } + + $inner_blocks = block_core_navigation_parse_blocks_from_menu_items( + isset( $menu_items_by_parent_id[0] ) + ? $menu_items_by_parent_id[0] + : array(), + $menu_items_by_parent_id + ); + + return serialize_blocks( $inner_blocks ); +} + +/** + * If there's a classic menu then use it as a fallback. + * + * @since 6.2.0 + * + * @deprecated 6.3.0 Use WP_Navigation_Fallback::create_classic_menu_fallback() instead. + * + * @return array the normalized parsed blocks. + */ +function block_core_navigation_maybe_use_classic_menu_fallback() { + + _deprecated_function( __FUNCTION__, '6.3.0', 'WP_Navigation_Fallback::create_classic_menu_fallback' ); + + // See if we have a classic menu. + $classic_nav_menu = block_core_navigation_get_classic_menu_fallback(); + + if ( ! $classic_nav_menu ) { + return; + } + + // If we have a classic menu then convert it to blocks. + $classic_nav_menu_blocks = block_core_navigation_get_classic_menu_fallback_blocks( $classic_nav_menu ); + + if ( empty( $classic_nav_menu_blocks ) ) { + return; + } + + // Create a new navigation menu from the classic menu. + $wp_insert_post_result = wp_insert_post( + array( + 'post_content' => $classic_nav_menu_blocks, + 'post_title' => $classic_nav_menu->name, + 'post_name' => $classic_nav_menu->slug, + 'post_status' => 'publish', + 'post_type' => 'wp_navigation', + ), + true // So that we can check whether the result is an error. + ); + + if ( is_wp_error( $wp_insert_post_result ) ) { + return; + } + + // Fetch the most recently published navigation which will be the classic one created above. + return block_core_navigation_get_most_recently_published_navigation(); +} + +/** + * Finds the most recently published `wp_navigation` Post. + * + * @since 6.1.0 + * + * @deprecated 6.3.0 Use WP_Navigation_Fallback::get_most_recently_published_navigation() instead. + * + * @return WP_Post|null the first non-empty Navigation or null. + */ +function block_core_navigation_get_most_recently_published_navigation() { + + _deprecated_function( __FUNCTION__, '6.3.0', 'WP_Navigation_Fallback::get_most_recently_published_navigation' ); + + // Default to the most recently created menu. + $parsed_args = array( + 'post_type' => 'wp_navigation', + 'no_found_rows' => true, + 'update_post_meta_cache' => false, + 'update_post_term_cache' => false, + 'order' => 'DESC', + 'orderby' => 'date', + 'post_status' => 'publish', + 'posts_per_page' => 1, // get only the most recent. + ); + + $navigation_post = new WP_Query( $parsed_args ); + if ( count( $navigation_post->posts ) > 0 ) { + return $navigation_post->posts[0]; + } + + return null; +} + +/** + * Accepts the serialized markup of a block and its inner blocks, and returns serialized markup of the inner blocks. + * + * @since 6.5.0 + * + * @param string $serialized_block The serialized markup of a block and its inner blocks. + * @return string + */ +function block_core_navigation_remove_serialized_parent_block( $serialized_block ) { + $start = strpos( $serialized_block, '-->' ) + strlen( '-->' ); + $end = strrpos( $serialized_block, '