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render_block_core_navigation_link › WordPress Function

Sincen/a
Deprecatedn/a
render_block_core_navigation_link ( $attributes, $content, $block )
Parameters: (3)
  • (array) $attributes The block attributes.
    Required: Yes
  • (array) $content The saved content.
    Required: Yes
  • (array) $block The parsed block.
    Required: Yes
Returns:
  • (string) Returns the post content with the legacy widget added.
Defined at:
Codex:

Renders the `core/navigation-link` block.



Source

function render_block_core_navigation_link( $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 or if the ID does not exist.
	if ( $is_post_type && $navigation_link_has_id ) {
		$post = get_post( $attributes['id'] );
		if ( ! $post || 'publish' !== $post->post_status ) {
			return '';
		}
	}

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

	$colors          = block_core_navigation_link_build_css_colors( $block->context, $attributes );
	$font_sizes      = block_core_navigation_link_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_the_ID() === $attributes['id'] );

	$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( $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(
			$attributes['label'],
			array(
				'code'   => array(),
				'em'     => array(),
				'img'    => array(
					'scale' => array(),
					'class' => array(),
					'style' => array(),
					'src'   => array(),
					'alt'   => array(),
				),
				's'      => array(),
				'span'   => array(
					'style' => array(),
				),
				'strong' => array(),
			)
		);
	}

	$html .= '</span>';

	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_link_render_submenu_icon() . '</span>';
	}

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

	if ( $has_submenu ) {
		$inner_blocks_html = '';
		foreach ( $block->inner_blocks as $inner_block ) {
			$inner_blocks_html .= $inner_block->render();
		}

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

	$html .= '</li>';

	return $html;
}