--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/blocks/navigation.php Tue Sep 27 16:37:53 2022 +0200
@@ -0,0 +1,690 @@
+<?php
+/**
+ * Server-side rendering of the `core/navigation` block.
+ *
+ * @package WordPress
+ */
+
+// 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.
+ *
+ * @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.
+ *
+ * @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;
+ }
+
+ /**
+ * Turns menu item data into a nested array of parsed blocks
+ *
+ * @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 ) {
+ 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;
+ }
+}
+
+/**
+ * Build an array with CSS classes and inline styles defining the colors
+ * which will be applied to the navigation markup in the front-end.
+ *
+ * @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.
+ *
+ * @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.
+ *
+ * @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>';
+}
+
+
+/**
+ * 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.
+ *
+ * @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 ) {
+ return isset( $block['blockName'] );
+ }
+ );
+
+ // Reset keys.
+ return array_values( $filtered );
+}
+
+/**
+ * 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.
+ *
+ * @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,
+ ),
+ ),
+ );
+
+ $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();
+
+ // Default to a list of Pages.
+
+ $navigation_post = block_core_navigation_get_first_non_empty_navigation();
+
+ // Prefer using 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 ) );
+
+ // 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;
+ }
+
+ /**
+ * 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[] 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.
+ *
+ * @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.
+ *
+ * @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'] ) {
+ $post_ids[] = $block->attributes['id'];
+ }
+ }
+
+ return $post_ids;
+}
+
+/**
+ * Renders the `core/navigation` block on server.
+ *
+ * @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.
+ */
+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 .= '<ul class="wp-block-navigation__container">';
+ }
+ 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 = false;
+ $inner_blocks_html .= '</ul>';
+ }
+ if ( 'core/site-title' === $inner_block->name || 'core/site-logo' === $inner_block->name ) {
+ $inner_blocks_html .= '<li class="wp-block-navigation-item">' . $inner_block->render() . '</li>';
+ } else {
+ $inner_blocks_html .= $inner_block->render();
+ }
+ }
+
+ if ( $is_list_open ) {
+ $inner_blocks_html .= '</ul>';
+ }
+
+ $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 ( ! $is_responsive_menu ) {
+ return sprintf(
+ '<nav %1$s>%2$s</nav>',
+ $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 = '<svg width="24" height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><rect x="4" y="7.5" width="16" height="1.5" /><rect x="4" y="15" width="16" height="1.5" /></svg>';
+ $should_display_icon_label = isset( $attributes['hasIcon'] ) && true === $attributes['hasIcon'];
+ $toggle_button_content = $should_display_icon_label ? $toggle_button_icon : 'Menu';
+
+ $responsive_container_markup = sprintf(
+ '<button aria-haspopup="true" aria-label="%3$s" class="%6$s" data-micromodal-trigger="%1$s">%9$s</button>
+ <div class="%5$s" style="%7$s" id="%1$s">
+ <div class="wp-block-navigation__responsive-close" tabindex="-1" data-micromodal-close>
+ <div class="wp-block-navigation__responsive-dialog" aria-label="%8$s">
+ <button aria-label="%4$s" data-micromodal-close class="wp-block-navigation__responsive-container-close"><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 11.8l6.1-6.3-1-1-6.1 6.2-6.1-6.2-1 1 6.1 6.3-6.5 6.7 1 1 6.5-6.6 6.5 6.6 1-1z"></path></svg></button>
+ <div class="wp-block-navigation__responsive-container-content" id="%1$s-content">
+ %2$s
+ </div>
+ </div>
+ </div>
+ </div>',
+ 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' ),
+ $toggle_button_content
+ );
+
+ return sprintf(
+ '<nav %1$s>%2$s</nav>',
+ $wrapper_attributes,
+ $responsive_container_markup
+ );
+}
+
+/**
+ * Register the navigation block.
+ *
+ * @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.
+ *
+ * @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' );