render_block_core_navigation_link() │ WP 5.9.0

Renders the core/navigation-link block.

No Hooks.

Returns

String. Returns the post content with the legacy widget added.

Usage

render_block_core_navigation_link( $attributes, $content, $block );

$attributes(array) (required)

The block attributes.

$content(string) (required)

The saved content.

$block(WP_Block) (required)

The parsed block.

Changelog

render_block_core_navigation_link() render block core navigation link code ^{WP 7.0}

function render_block_core_navigation_link( $attributes, $content, $block ) {
	// Check if this navigation item should render based on post status.
	if ( defined( 'IS_GUTENBERG_PLUGIN' ) && IS_GUTENBERG_PLUGIN ) {
		if ( ! gutenberg_block_core_shared_navigation_item_should_render( $attributes, $block ) ) {
			return '';
		}
	}

	// Don't render the block's subtree if it has no label.
	if ( empty( $attributes['label'] ) ) {
		return '';
	}

	$font_sizes      = block_core_navigation_link_build_css_font_sizes( $block->context );
	$classes         = array_merge(
		$font_sizes['css_classes']
	);
	$style_attribute = $font_sizes['inline_styles'];

	// Render inner blocks first to check if any menu items will actually display.
	$inner_blocks_html = '';
	foreach ( $block->inner_blocks as $inner_block ) {
		$inner_blocks_html .= $inner_block->render();
	}
	$has_submenu = ! empty( trim( $inner_blocks_html ) );

	$css_classes = trim( implode( ' ', $classes ) );
	$kind        = empty( $attributes['kind'] ) ? 'post_type' : str_replace( '-', '_', $attributes['kind'] );
	$is_active   = ! empty( $attributes['id'] ) && get_queried_object_id() === (int) $attributes['id'] && ! empty( get_queried_object()->$kind );

	if ( is_post_type_archive() && ! empty( $attributes['url'] ) ) {
		$queried_archive_link = get_post_type_archive_link( get_queried_object()->name );
		if ( $attributes['url'] === $queried_archive_link ) {
			$is_active = true;
		}
	}

	$wrapper_attributes = get_block_wrapper_attributes(
		array(
			'class' => $css_classes . ' wp-block-navigation-item' . ( $has_submenu ? ' has-child' : '' ) .
				( $is_active ? ' current-menu-item' : '' ),
			'style' => $style_attribute,
		)
	);
	$html               = '<li ' . $wrapper_attributes . '>' .
		'<a class="wp-block-navigation-item__content" ';

	// Start appending HTML attributes to anchor tag.
	if ( isset( $attributes['url'] ) ) {
		$html .= ' href="' . esc_url( block_core_navigation_link_maybe_urldecode( $attributes['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'] ) . '"';
	}

	// End appending HTML attributes to anchor tag.

	// Start anchor tag content.
	$html .= '>' .
		// Wrap title with span to isolate it from submenu icon.
		'<span class="wp-block-navigation-item__label">';

	if ( isset( $attributes['label'] ) ) {
		$html .= wp_kses_post( $attributes['label'] );
	}

	$html .= '</span>';

	// Add description if available.
	if ( ! empty( $attributes['description'] ) ) {
		$html .= '<span class="wp-block-navigation-item__description">';
		$html .= wp_kses_post( $attributes['description'] );
		$html .= '</span>';
	}

	$html .= '</a>';
	// End anchor tag content.

	if ( isset( $block->context['showSubmenuIcon'] ) && $block->context['showSubmenuIcon'] && $has_submenu ) {
		// The submenu icon can be hidden by a CSS rule on the Navigation Block.
		$html .= '<span class="wp-block-navigation__submenu-icon">' . block_core_navigation_render_submenu_icon() . '</span>';
	}

	if ( $has_submenu ) {
		$html .= sprintf(
			'<ul class="wp-block-navigation__submenu-container">%s</ul>',
			$inner_blocks_html
		);
	}

	$html .= '</li>';

	return $html;
}