FM / blocks

/var/www/vhosts/ihelp.ro/ajutam.ro/wp-includes/blocks/

/var/www/vhosts/ihelp.ro/ajutam.ro/wp-includes/blocks

Name	Size	Mode	Actions
accordion/	-	0755	rm
accordion-heading/	-	0755	rm
accordion-item/	-	0755	rm
accordion-panel/	-	0755	rm
archives/	-	0755	rm
audio/	-	0755	rm
avatar/	-	0755	rm
block/	-	0755	rm
button/	-	0755	rm
buttons/	-	0755	rm
calendar/	-	0755	rm
categories/	-	0755	rm
code/	-	0755	rm
column/	-	0755	rm
columns/	-	0755	rm
comment-author-name/	-	0755	rm
comment-content/	-	0755	rm
comment-date/	-	0755	rm
comment-edit-link/	-	0755	rm
comment-reply-link/	-	0755	rm
comment-template/	-	0755	rm
comments/	-	0755	rm
comments-pagination/	-	0755	rm
comments-pagination-next/	-	0755	rm
comments-pagination-numbers/	-	0755	rm
comments-pagination-previous/	-	0755	rm
comments-title/	-	0755	rm
cover/	-	0755	rm
details/	-	0755	rm
embed/	-	0755	rm
file/	-	0755	rm
footnotes/	-	0755	rm
freeform/	-	0755	rm
gallery/	-	0755	rm
group/	-	0755	rm
heading/	-	0755	rm
home-link/	-	0755	rm
html/	-	0755	rm
image/	-	0755	rm
latest-comments/	-	0755	rm
latest-posts/	-	0755	rm
legacy-widget/	-	0755	rm
list/	-	0755	rm
list-item/	-	0755	rm
loginout/	-	0755	rm
math/	-	0755	rm
media-text/	-	0755	rm
missing/	-	0755	rm
more/	-	0755	rm
navigation/	-	0755	rm
navigation-link/	-	0755	rm
navigation-submenu/	-	0755	rm
nextpage/	-	0755	rm
page-list/	-	0755	rm
page-list-item/	-	0755	rm
paragraph/	-	0755	rm
pattern/	-	0755	rm
post-author/	-	0755	rm
post-author-biography/	-	0755	rm
post-author-name/	-	0755	rm
post-comments-count/	-	0755	rm
post-comments-form/	-	0755	rm
post-comments-link/	-	0755	rm
post-content/	-	0755	rm
post-date/	-	0755	rm
post-excerpt/	-	0755	rm
post-featured-image/	-	0755	rm
post-navigation-link/	-	0755	rm
post-template/	-	0755	rm
post-terms/	-	0755	rm
post-time-to-read/	-	0755	rm
post-title/	-	0755	rm
preformatted/	-	0755	rm
pullquote/	-	0755	rm
query/	-	0755	rm
query-no-results/	-	0755	rm
query-pagination/	-	0755	rm
query-pagination-next/	-	0755	rm
query-pagination-numbers/	-	0755	rm
query-pagination-previous/	-	0755	rm
query-title/	-	0755	rm
query-total/	-	0755	rm
quote/	-	0755	rm
read-more/	-	0755	rm
rss/	-	0755	rm
search/	-	0755	rm
separator/	-	0755	rm
shortcode/	-	0755	rm
site-logo/	-	0755	rm
site-tagline/	-	0755	rm
site-title/	-	0755	rm
social-link/	-	0755	rm
social-links/	-	0755	rm
spacer/	-	0755	rm
table/	-	0755	rm
tag-cloud/	-	0755	rm
template-part/	-	0755	rm
term-count/	-	0755	rm
term-description/	-	0755	rm
term-name/	-	0755	rm
term-template/	-	0755	rm
terms-query/	-	0755	rm
text-columns/	-	0755	rm
verse/	-	0755	rm
video/	-	0755	rm
widget-group/	-	0755	rm
accordion-item.php	2411	0644	edit dl rm
accordion.php	1147	0644	edit dl rm
archives.php	4415	0644	edit dl rm
avatar.php	5745	0644	edit dl rm
block.php	4186	0644	edit dl rm
blocks-json.php	218553	0644	edit dl rm
button.php	1752	0644	edit dl rm
calendar.php	6075	0644	edit dl rm
categories.php	4650	0644	edit dl rm
comment-author-name.php	2133	0644	edit dl rm
comment-content.php	2459	0644	edit dl rm
comment-date.php	1863	0644	edit dl rm
comment-edit-link.php	1713	0644	edit dl rm
comment-reply-link.php	2075	0644	edit dl rm
comment-template.php	4494	0644	edit dl rm
comments-pagination-next.php	1924	0644	edit dl rm
comments-pagination-numbers.php	1632	0644	edit dl rm
comments-pagination-previous.php	1790	0644	edit dl rm
comments-pagination.php	1261	0644	edit dl rm
comments-title.php	2772	0644	edit dl rm
comments.php	6784	0644	edit dl rm
cover.php	3175	0644	edit dl rm
file.php	1879	0644	edit dl rm
footnotes.php	3771	0644	edit dl rm
gallery.php	6439	0644	edit dl rm
heading.php	1301	0644	edit dl rm
home-link.php	5438	0644	edit dl rm
image.php	13824	0644	edit dl rm
index.php	5111	0644	edit dl rm
latest-comments.php	5030	0644	edit dl rm
latest-posts.php	8734	0644	edit dl rm
legacy-widget.php	4011	0644	edit dl rm
list.php	1273	0644	edit dl rm
loginout.php	1664	0644	edit dl rm
media-text.php	4383	0644	edit dl rm
navigation-link.php	13961	0644	edit dl rm
navigation-submenu.php	9976	0644	edit dl rm
navigation.php	49550	0644	edit dl rm
page-list-item.php	361	0644	edit dl rm
page-list.php	13611	0644	edit dl rm
pattern.php	1788	0644	edit dl rm
post-author-biography.php	1524	0644	edit dl rm
post-author-name.php	1951	0644	edit dl rm
post-author.php	2734	0644	edit dl rm
post-comments-count.php	1275	0644	edit dl rm
post-comments-form.php	2805	0644	edit dl rm
post-comments-link.php	2237	0644	edit dl rm
post-content.php	2668	0644	edit dl rm
post-date.php	3728	0644	edit dl rm
post-excerpt.php	3612	0644	edit dl rm
post-featured-image.php	9363	0644	edit dl rm
post-navigation-link.php	4837	0644	edit dl rm
post-template.php	5749	0644	edit dl rm
post-terms.php	3640	0644	edit dl rm
post-time-to-read.php	6493	0644	edit dl rm
post-title.php	2138	0644	edit dl rm
query-no-results.php	1847	0644	edit dl rm
query-pagination-next.php	3781	0644	edit dl rm
query-pagination-numbers.php	4770	0644	edit dl rm
query-pagination-previous.php	3578	0644	edit dl rm
query-pagination.php	1176	0644	edit dl rm
query-title.php	2943	0644	edit dl rm
query-total.php	2535	0644	edit dl rm
query.php	5690	0644	edit dl rm
read-more.php	1830	0644	edit dl rm
require-dynamic-blocks.php	4700	0644	edit dl rm
require-static-blocks.php	558	0644	edit dl rm
rss.php	4609	0644	edit dl rm
search.php	23817	0644	edit dl rm
shortcode.php	735	0644	edit dl rm
site-logo.php	6334	0644	edit dl rm
site-tagline.php	1203	0644	edit dl rm
site-title.php	1864	0644	edit dl rm
social-link.php	67735	0644	edit dl rm
tag-cloud.php	1590	0644	edit dl rm
template-part.php	10154	0644	edit dl rm
term-count.php	1843	0644	edit dl rm
term-description.php	1770	0644	edit dl rm
term-name.php	2069	0644	edit dl rm
term-template.php	4518	0644	edit dl rm
video.php	2733	0644	edit dl rm
widget-group.php	2438	0644	edit dl rm

Edit: /var/www/vhosts/ihelp.ro/ajutam.ro/wp-includes/blocks/navigation.php (49550B)

<?php
/**
 * Server-side rendering of the `core/navigation` block.
 *
 * @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 <li> 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.
		 */
		$needs_list_item_wrapper = apply_filters( 'block_core_navigation_listable_blocks', static::$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 '<li class="wp-block-navigation-item">' . $inner_block_content . '</li>';
			}
		}

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;
				$inner_blocks_html .= sprintf(
					'<ul %1$s>',
					$container_attributes
				);
			}

if ( ! $is_list_item && $is_list_open ) {
				$is_list_open       = false;
				$inner_blocks_html .= '</ul>';
			}

$inner_blocks_html .= $inner_block_markup;
		}

if ( $is_list_open ) {
			$inner_blocks_html .= '</ul>';
		}

// 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 );

// Re-serialize, and run Block Hooks algorithm to inject hooked blocks.
			// TODO: See if we can move the apply_block_hooks_to_content_from_post_object() call
			// before the parse_blocks() call further above, to avoid the extra serialization/parsing.
			$markup = serialize_blocks( $blocks );
			$markup = apply_block_hooks_to_content_from_post_object( $markup, $navigation_post );
			$blocks = parse_blocks( $markup );

// 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'] ?? '';

if ( ! empty( $navigation_name ) ) {
			return $navigation_name;
		}

// 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        = '<svg width="24" height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M4 7.5h16v1.5H4z"></path><path d="M4 15h16v1.5H4z"></path></svg>';
		if ( isset( $attributes['icon'] ) ) {
			if ( 'menu' === $attributes['icon'] ) {
				$toggle_button_icon = '<svg width="24" height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M5 5v1.5h14V5H5z"></path><path d="M5 12.8h14v-1.5H5v1.5z"></path><path d="M5 19h14v-1.5H5V19z"></path></svg>';
			}
		}
		$toggle_button_content       = $should_display_icon_label ? $toggle_button_icon : __( 'Menu' );
		$toggle_close_button_icon    = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" aria-hidden="true" focusable="false"><path d="m13.06 12 6.47-6.47-1.06-1.06L12 10.94 5.53 4.47 4.47 5.53 10.94 12l-6.47 6.47 1.06 1.06L12 13.06l6.47 6.47 1.06-1.06L13.06 12Z"></path></svg>';
		$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--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--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--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(
			'<button aria-haspopup="dialog" %3$s class="%6$s" %10$s>%8$s</button>
				<div class="%5$s" %7$s id="%1$s" %11$s>
					<div class="wp-block-navigation__responsive-close" tabindex="-1">
						<div class="wp-block-navigation__responsive-dialog" %12$s>
							<button %4$s class="wp-block-navigation__responsive-container-close" %13$s>%9$s</button>
							<div class="wp-block-navigation__responsive-container-content" %14$s id="%1$s-content">
								%2$s
							</div>
						</div>
					</div>
				</div>',
			esc_attr( $modal_unique_id ),
			$inner_blocks_html,
			$toggle_aria_label_open,
			$toggle_aria_label_close,
			esc_attr( trim( implode( ' ', $responsive_container_classes ) ) ),
			esc_attr( trim( 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 );
		$extra_attributes   = array(
			'class' => $class,
			'style' => $style,
		);
		if ( ! empty( $nav_menu_name ) ) {
			$extra_attributes['aria-label'] = $nav_menu_name;
		}
		$wrapper_attributes = get_block_wrapper_attributes( $extra_attributes );

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 ) ) {
			wp_enqueue_script_module( '@wordpress/block-library/navigation/view' );
		}
	}

/**
	 * 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(
			'<nav %1$s>%2$s</nav>',
			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.
	 */
	function block_core_navigation_get_menu_items_at_location( $location ) {
		if ( empty( $location ) ) {
			return;
		}

// Build menu data. The following approximates the code in
		// `wp_nav_menu()` and `gutenberg_output_block_nav_menu`.

// Find the location in the list of locations, returning early if the
		// location can't be found.
		$locations = get_nav_menu_locations();
		if ( ! isset( $locations[ $location ] ) ) {
			return;
		}

// Get the menu from the location, returning early if there is no
		// menu or there was an error.
		$menu = wp_get_nav_menu_object( $locations[ $location ] );
		if ( ! $menu || is_wp_error( $menu ) ) {
			return;
		}

$menu_items = wp_get_nav_menu_items( $menu->term_id, array( 'update_post_term_cache' => false ) );
		_wp_menu_item_classes_by_context( $menu_items );

return $menu_items;
	}

/**
	 * 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.
	 */
	function block_core_navigation_sort_menu_items_by_parent_id( $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 );

$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;
		}

return $menu_items_by_parent_id;
	}

/**
	 * Gets the inner blocks for the navigation block from the unstable location attribute.
	 *
	 * @since 6.5.0
	 *
	 * @param array $attributes The block attributes.
	 * @return WP_Block_List Returns the inner blocks for the navigation block.
	 */
	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 new WP_Block_List( array(), $attributes );
		}

$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 );
	}
}

/**
 * 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 `<li>`.
		$tags->set_attribute( 'data-wp-interactive', 'core/navigation' );
		$tags->set_attribute( 'data-wp-context', '{ "submenuOpenedBy": { "click": false, "hover": false, "focus": false }, "type": "submenu", "modal": null, "previousFocus": null }' );
		$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' );

// 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' );

if ( ! isset( $block_attributes['openSubmenusOnClick'] ) || false === $block_attributes['openSubmenusOnClick'] ) {
			$tags->set_attribute( 'data-wp-on--mouseenter', 'actions.openMenuOnHover' );
			$tags->set_attribute( 'data-wp-on--mouseleave', 'actions.closeMenuOnHover' );
		}

// 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--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--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.
 */
function block_core_navigation_build_css_colors( $attributes ) {
	$colors = array(
		'css_classes'           => array(),
		'inline_styles'         => '',
		'overlay_css_classes'   => array(),
		'overlay_inline_styles' => '',
	);

// Text color.
	$has_named_text_color  = array_key_exists( 'textColor', $attributes );
	$has_custom_text_color = array_key_exists( 'customTextColor', $attributes );

// If has text color.
	if ( $has_custom_text_color || $has_named_text_color ) {
		// Add has-text-color class.
		$colors['css_classes'][] = 'has-text-color';
	}

if ( $has_named_text_color ) {
		// Add the color class.
		$colors['css_classes'][] = sprintf( 'has-%s-color', $attributes['textColor'] );
	} elseif ( $has_custom_text_color ) {
		// Add the custom color inline style.
		$colors['inline_styles'] .= sprintf( 'color: %s;', $attributes['customTextColor'] );
	}

// Background color.
	$has_named_background_color  = array_key_exists( 'backgroundColor', $attributes );
	$has_custom_background_color = array_key_exists( 'customBackgroundColor', $attributes );

// If has background color.
	if ( $has_custom_background_color || $has_named_background_color ) {
		// Add has-background class.
		$colors['css_classes'][] = 'has-background';
	}

if ( $has_named_background_color ) {
		// Add the background-color class.
		$colors['css_classes'][] = sprintf( 'has-%s-background-color', $attributes['backgroundColor'] );
	} elseif ( $has_custom_background_color ) {
		// Add the custom background-color inline style.
		$colors['inline_styles'] .= sprintf( 'background-color: %s;', $attributes['customBackgroundColor'] );
	}

// Overlay text color.
	$has_named_overlay_text_color  = array_key_exists( 'overlayTextColor', $attributes );
	$has_custom_overlay_text_color = array_key_exists( 'customOverlayTextColor', $attributes );

// If has overlay text color.
	if ( $has_custom_overlay_text_color || $has_named_overlay_text_color ) {
		// Add has-text-color class.
		$colors['overlay_css_classes'][] = 'has-text-color';
	}

if ( $has_named_overlay_text_color ) {
		// Add the overlay color class.
		$colors['overlay_css_classes'][] = sprintf( 'has-%s-color', $attributes['overlayTextColor'] );
	} elseif ( $has_custom_overlay_text_color ) {
		// Add the custom overlay color inline style.
		$colors['overlay_inline_styles'] .= sprintf( 'color: %s;', $attributes['customOverlayTextColor'] );
	}

// Overlay background color.
	$has_named_overlay_background_color  = array_key_exists( 'overlayBackgroundColor', $attributes );
	$has_custom_overlay_background_color = array_key_exists( 'customOverlayBackgroundColor', $attributes );

// If has overlay background color.
	if ( $has_custom_overlay_background_color || $has_named_overlay_background_color ) {
		// Add has-background class.
		$colors['overlay_css_classes'][] = 'has-background';
	}

if ( $has_named_overlay_background_color ) {
		// Add the overlay background-color class.
		$colors['overlay_css_classes'][] = sprintf( 'has-%s-background-color', $attributes['overlayBackgroundColor'] );
	} elseif ( $has_custom_overlay_background_color ) {
		// Add the custom overlay background-color inline style.
		$colors['overlay_inline_styles'] .= sprintf( 'background-color: %s;', $attributes['customOverlayBackgroundColor'] );
	}

return $colors;
}

/**
 * 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.
 */
function block_core_navigation_build_css_font_sizes( $attributes ) {
	// CSS classes.
	$font_sizes = array(
		'css_classes'   => array(),
		'inline_styles' => '',
	);

$has_named_font_size  = array_key_exists( 'fontSize', $attributes );
	$has_custom_font_size = array_key_exists( 'customFontSize', $attributes );

if ( $has_named_font_size ) {
		// Add the font size class.
		$font_sizes['css_classes'][] = sprintf( 'has-%s-font-size', $attributes['fontSize'] );
	} elseif ( $has_custom_font_size ) {
		// Add the custom font size inline style.
		$font_sizes['inline_styles'] = sprintf( 'font-size: %spx;', $attributes['customFontSize'] );
	}

return $font_sizes;
}

/**
 * Returns the top-level submenu SVG chevron icon.
 *
 * @since 5.9.0
 *
 * @return string
 */
function block_core_navigation_render_submenu_icon() {
	return '<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12" fill="none" aria-hidden="true" focusable="false"><path d="M1.50002 4L6.00002 8L10.5 4" stroke-width="1.5"></path></svg>';
}

/**
 * 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,
		static function ( $block ) {
			return isset( $block['blockName'] );
		}
	);

// Reset keys.
	return array_values( $filtered );
}

/**
 * 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',
			'innerContent' => array(),
			'attrs'        => array(),
		),
	);

$registry = WP_Block_Type_Registry::get_instance();

// If `core/page-list` is not registered then return empty blocks.
	$fallback_blocks = $registry->is_registered( 'core/page-list' ) ? $page_list_fallback : array();
	$navigation_post = WP_Navigation_Fallback::get_fallback();

// Use the first non-empty Navigation as fallback if available.
	if ( $navigation_post ) {
		$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;

// 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.
		// TODO: See if we can move the apply_block_hooks_to_content_from_post_object() call
		// before the parse_blocks() call further above, to avoid the extra serialization/parsing.
		$markup          = serialize_blocks( $fallback_blocks );
		$markup          = apply_block_hooks_to_content_from_post_object( $markup, $navigation_post );
		$fallback_blocks = parse_blocks( $markup );
	}

/**
	 * Filters the fallback experience for the Navigation block.
	 *
	 * Returning a falsey value will opt out of the fallback and cause the block not to render.
	 * To customise the blocks provided return an array of blocks - these should be valid
	 * children of the `core/navigation` block.
	 *
	 * @since 5.9.0
	 *
	 * @param array[] $fallback_blocks default fallback blocks provided by the default block mechanic.
	 */
	return apply_filters( 'block_core_navigation_render_fallback', $fallback_blocks );
}

/**
 * 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.
 */
function block_core_navigation_get_post_ids( $inner_blocks ) {
	$post_ids = array_map( 'block_core_navigation_from_block_get_post_ids', iterator_to_array( $inner_blocks ) );
	return array_unique( array_merge( ...$post_ids ) );
}

/**
 * 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.
 */
function block_core_navigation_from_block_get_post_ids( $block ) {
	$post_ids = array();

if ( $block->inner_blocks ) {
		$post_ids = block_core_navigation_get_post_ids( $block->inner_blocks );
	}

if ( 'core/navigation-link' === $block->name || 'core/navigation-submenu' === $block->name ) {
		if ( $block->attributes && isset( $block->attributes['kind'] ) && 'post-type' === $block->attributes['kind'] && isset( $block->attributes['id'] ) ) {
			$post_ids[] = $block->attributes['id'];
		}
	}

return $post_ids;
}

/**
 * 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 navigation block markup.
 */
function render_block_core_navigation( $attributes, $content, $block ) {
	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.
 */
function register_block_core_navigation() {
	register_block_type_from_metadata(
		__DIR__ . '/navigation',
		array(
			'render_callback' => 'render_block_core_navigation',
		)
	);
}

add_action( 'init', 'register_block_core_navigation' );

/**
 * 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.
 */
function block_core_navigation_typographic_presets_backcompatibility( $parsed_block ) {
	if ( 'core/navigation' === $parsed_block['blockName'] ) {
		$attribute_to_prefix_map = array(
			'fontStyle'      => 'var:preset|font-style|',
			'fontWeight'     => 'var:preset|font-weight|',
			'textDecoration' => 'var:preset|text-decoration|',
			'textTransform'  => 'var:preset|text-transform|',
		);
		foreach ( $attribute_to_prefix_map as $style_attribute => $prefix ) {
			if ( ! empty( $parsed_block['attrs']['style']['typography'][ $style_attribute ] ) ) {
				$prefix_len      = strlen( $prefix );
				$attribute_value = &$parsed_block['attrs']['style']['typography'][ $style_attribute ];
				if ( 0 === strncmp( $attribute_value, $prefix, $prefix_len ) ) {
					$attribute_value = substr( $attribute_value, $prefix_len );
				}
				if ( 'textDecoration' === $style_attribute && 'strikethrough' === $attribute_value ) {
					$attribute_value = 'line-through';
				}
			}
		}
	}

return $parsed_block;
}

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;
}

cmd: