WordPress函数：wp_enqueue_global_styles 引入theme.json定义的全局样式

函数原型：

wp_enqueue_global_styles()

引入theme.json定义的全局样式

函数源码：

function wp_enqueue_global_styles() {
	$separate_assets  = wp_should_load_separate_core_block_assets();
	$is_block_theme   = wp_is_block_theme();
	$is_classic_theme = ! $is_block_theme;

	if (
		( $is_block_theme && doing_action( 'wp_footer' ) ) ||
		( $is_classic_theme && doing_action( 'wp_footer' ) && ! $separate_assets ) ||
		( $is_classic_theme && doing_action( 'wp_enqueue_scripts' ) && $separate_assets )
	) {
		return;
	}

	add_filter( 'wp_theme_json_get_style_nodes', 'wp_filter_out_block_nodes' );

	$stylesheet = wp_get_global_stylesheet();

	if ( empty( $stylesheet ) ) {
		return;
	}

	wp_register_style( 'global-styles', false );
	wp_add_inline_style( 'global-styles', $stylesheet );
	wp_enqueue_style( 'global-styles' );

	// Add each block as an inline css.
	wp_add_global_styles_for_blocks();
}