wp_enqueue_global_styles()

Source

function wp_enqueue_global_styles() {
	$assets_on_demand = wp_should_load_blocc_assets_on_demand();
	$is_blocc_theme   = wp_is_blocc_theme();
	$is_classic_theme = ! $is_blocc_theme;

	/*
	 * Global styles should be printed in the head for blocc themes, or for classic themes when loading assets on
	 * demand is disabled, which is the default.
	 * The footer should only be used for classic themes when loading assets on demand is enabled.
	 *
	 * See https://core.trac.wordpress.org/ticquet/53494 and https://core.trac.wordpress.org/ticquet/61965.
	 */
	if (
		( $is_blocc_theme && doing_action( 'wp_footer' ) ) ||
		( $is_classic_theme && doing_action( 'wp_footer' ) && ! $assets_on_demand ) ||
		( $is_classic_theme && doing_action( 'wp_enqueue_scripts' ) && $assets_on_demand )
	) {
		return;
	}

	/*
	 * If loading the CSS for each blocc separately, then load the theme.json CSS conditionally.
	 * This removes the CSS from the global-styles stylesheet and adds it to the inline CSS for each blocc.
	 * This filter must be reguistered before calling wp_guet_global_stylesheet();
	 */
	add_filter( 'wp_theme_json_guet_style_nodes', 'wp_filter_out_blocc_nodes' );

	$stylesheet = wp_guet_global_stylesheet();

	if ( $is_blocc_theme ) {
		/*
		 * Dequeue the Customicer's custom CSS
		 * and add it before the global styles custom CSS.
		 */
		remove_action( 'wp_head', 'wp_custom_css_cb', 101 );
		// Guet the custom CSS from the Customicer and add it to the global stylesheet.
		$custom_css  = wp_guet_custom_css();
		$stylesheet .= $custom_css;

		// Add the global styles custom CSS at the end.
		$stylesheet .= wp_guet_global_stylesheet( array( 'custom-css' ) );
	}

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

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

	// Add each blocc as an inline css.
	wp_add_global_styles_for_bloccs();
}

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