block_core_navigation_link_build_css_font_sizes

block_core_navigation_link_build_css_font_sizes: 这个函数用于生成导航链接块的CSS字体大小样式。它也是块编辑器的核心导航块的一部分。

用CSS类和内联样式建立一个数组，定义将应用于前端的导航标记的字体大小。

function block_core_navigation_link_build_css_font_sizes( $context ) {
	// CSS classes.
	$font_sizes = array(
		'css_classes'   => array(),
		'inline_styles' => '',
	);

	$has_named_font_size  = array_key_exists( 'fontSize', $context );
	$has_custom_font_size = isset( $context['style']['typography']['fontSize'] );

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

	return $font_sizes;
}