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render_block_core_navigation_submenu › WordPress Function
Sincen/a
Deprecatedn/a
› render_block_core_navigation_submenu ( $attributes, $content, $block )
Parameters: (3) |
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Returns: |
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Defined at: |
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Codex: |
Renders the `core/navigation-submenu` block.
Source
function render_block_core_navigation_submenu( $attributes, $content, $block ) { $navigation_link_has_id = isset( $attributes['id'] ) && is_numeric( $attributes['id'] ); $is_post_type = isset( $attributes['kind'] ) && 'post-type' === $attributes['kind']; $is_post_type = $is_post_type || isset( $attributes['type'] ) && ( 'post' === $attributes['type'] || 'page' === $attributes['type'] ); // Don't render the block's subtree if it is a draft. if ( $is_post_type && $navigation_link_has_id && 'publish' !== get_post_status( $attributes['id'] ) ) { return ''; } // Don't render the block's subtree if it has no label. if ( empty( $attributes['label'] ) ) { return ''; } $colors = block_core_navigation_submenu_build_css_colors( $block->context, $attributes ); $font_sizes = block_core_navigation_submenu_build_css_font_sizes( $block->context ); $classes = array_merge( $colors['css_classes'], $font_sizes['css_classes'] ); $style_attribute = ( $colors['inline_styles'] . $font_sizes['inline_styles'] ); $css_classes = trim( implode( ' ', $classes ) ); $has_submenu = count( $block->inner_blocks ) > 0; $is_active = ! empty( $attributes['id'] ) && ( get_queried_object_id() === (int) $attributes['id'] ); $show_submenu_indicators = isset( $block->context['showSubmenuIcon'] ) && $block->context['showSubmenuIcon']; $open_on_click = isset( $block->context['openSubmenusOnClick'] ) && $block->context['openSubmenusOnClick']; $open_on_hover_and_click = isset( $block->context['openSubmenusOnClick'] ) && ! $block->context['openSubmenusOnClick'] && $show_submenu_indicators; $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $css_classes . ' wp-block-navigation-item' . ( $has_submenu ? ' has-child' : '' ) . ( $open_on_click ? ' open-on-click' : '' ) . ( $open_on_hover_and_click ? ' open-on-hover-click' : '' ) . ( $is_active ? ' current-menu-item' : '' ), 'style' => $style_attribute, ) ); $label = ''; if ( isset( $attributes['label'] ) ) { $label .= wp_kses_post( $attributes['label'] ); } $aria_label = sprintf( /* translators: Accessibility text. %s: Parent page title. */ __( '%s submenu' ), wp_strip_all_tags( $label ) ); $html = '<li ' . $wrapper_attributes . '>'; // If Submenus open on hover, we render an anchor tag with attributes. // If submenu icons are set to show, we also render a submenu button, so the submenu can be opened on click. if ( ! $open_on_click ) { $item_url = isset( $attributes['url'] ) ? $attributes['url'] : ''; // Start appending HTML attributes to anchor tag. $html .= '<a class="wp-block-navigation-item__content"'; // The href attribute on a and area elements is not required; // when those elements do not have href attributes they do not create hyperlinks. // But also The href attribute must have a value that is a valid URL potentially // surrounded by spaces. // see: https://html.spec.whatwg.org/multipage/links.html#links-created-by-a-and-area-elements. if ( ! empty( $item_url ) ) { $html .= ' href="' . esc_url( $item_url ) . '"'; } if ( $is_active ) { $html .= ' aria-current="page"'; } if ( isset( $attributes['opensInNewTab'] ) && true === $attributes['opensInNewTab'] ) { $html .= ' target="_blank" '; } if ( isset( $attributes['rel'] ) ) { $html .= ' rel="' . esc_attr( $attributes['rel'] ) . '"'; } elseif ( isset( $attributes['nofollow'] ) && $attributes['nofollow'] ) { $html .= ' rel="nofollow"'; } if ( isset( $attributes['title'] ) ) { $html .= ' title="' . esc_attr( $attributes['title'] ) . '"'; } $html .= '>'; // End appending HTML attributes to anchor tag. $html .= $label; $html .= '</a>'; // End anchor tag content. if ( $show_submenu_indicators ) { // The submenu icon is rendered in a button here // so that there's a clickable element to open the submenu. $html .= '<button aria-label="' . esc_attr( $aria_label ) . '" class="wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle" aria-expanded="false">' . block_core_navigation_submenu_render_submenu_icon() . '</button>'; } } else { // If menus open on click, we render the parent as a button. $html .= '<button aria-label="' . esc_attr( $aria_label ) . '" class="wp-block-navigation-item__content wp-block-navigation-submenu__toggle" aria-expanded="false">'; // Wrap title with span to isolate it from submenu icon. $html .= '<span class="wp-block-navigation-item__label">'; $html .= $label; $html .= '</span>'; $html .= '</button>'; $html .= '<span class="wp-block-navigation__submenu-icon">' . block_core_navigation_submenu_render_submenu_icon() . '</span>'; } if ( $has_submenu ) { $colors = block_core_navigation_submenu_build_css_colors( $block->context, $attributes, $has_submenu ); $classes = array_merge( array( 'wp-block-navigation__submenu-container' ), $colors['css_classes'] ); $css_classes = trim( implode( ' ', $classes ) ); $style_attribute = $colors['inline_styles']; $inner_blocks_html = ''; foreach ( $block->inner_blocks as $inner_block ) { $inner_blocks_html .= $inner_block->render(); } if ( strpos( $inner_blocks_html, 'current-menu-item' ) ) { $tag_processor = new WP_HTML_Tag_Processor( $html ); while ( $tag_processor->next_tag( array( 'class_name' => 'wp-block-navigation-item__content' ) ) ) { $tag_processor->add_class( 'current-menu-ancestor' ); } $html = $tag_processor->get_updated_html(); } $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $css_classes, 'style' => $style_attribute, ) ); $html .= sprintf( '<ul %s>%s</ul>', $wrapper_attributes, $inner_blocks_html ); } $html .= '</li>'; return $html; }