wp_add_global_styles_for_blocks

wp_add_global_styles_for_blocks: 该函数用于为块元素添加全局样式。它不需要任何参数。

为每个区块的内联样式添加全局样式规则。

function wp_add_global_styles_for_blocks() {
	$tree        = WP_Theme_JSON_Resolver::get_merged_data();
	$block_nodes = $tree->get_styles_block_nodes();
	foreach ( $block_nodes as $metadata ) {
		$block_css = $tree->get_styles_for_block( $metadata );

		if ( ! wp_should_load_separate_core_block_assets() ) {
			wp_add_inline_style( 'global-styles', $block_css );
			continue;
		}

		if ( isset( $metadata['name'] ) ) {
			$block_name = str_replace( 'core/', '', $metadata['name'] );
			/*
			 * These block styles are added on block_render.
			 * This hooks inline CSS to them so that they are loaded conditionally
			 * based on whether or not the block is used on the page.
			 */
			wp_add_inline_style( 'wp-block-' . $block_name, $block_css );
		}

		// The likes of block element styles from theme.json do not have  $metadata['name'] set.
		if ( ! isset( $metadata['name'] ) && ! empty( $metadata['path'] ) ) {
			$result = array_values(
				array_filter(
					$metadata['path'],
					function ( $item ) {
						if ( strpos( $item, 'core/' ) !== false ) {
							return true;
						}
						return false;
					}
				)
			);
			if ( isset( $result[0] ) ) {
				$block_name = str_replace( 'core/', '', $result[0] );
				wp_add_inline_style( 'wp-block-' . $block_name, $block_css );
			}
		}
	}
}