wp_font_library_wp_admin_enqueue_scripts( string $hook_suffix )

Source

function wp_font_library_wp_admin_enqueue_scripts( $hook_suffix ) {
	// Check all possible ways this page can be accessed:
	// 1. Menu page via admin.php?page=font-library-wp-admin (plugin)
	// 2. Direct file via font-library.php (Core) - screen ID will be 'font-library'
	$current_screen = get_current_screen();
	$is_our_page = (
		( isset( $_GET['page'] ) && 'font-library-wp-admin' === $_GET['page'] ) || // phpcs:ignore WordPress.Security.NonceVerification.Recommended
		( $current_screen && 'font-library' === $current_screen->id )
	);

	if ( ! $is_our_page ) {
		return;
	}

	// Load build constants
	$build_constants = require __DIR__ . '/../../constants.php';

	// Fire init action for extensions to register routes and menu items
	do_action( 'font-library-wp-admin_init' );

	// Preload REST API data
	wp_font_library_wp_admin_preload_data();

	// Get all registered routes
	$routes = wp_get_font_library_wp_admin_routes();

	// Get boot module asset file for dependencies
	$asset_file = ABSPATH . WPINC . '/js/dist/script-modules/boot/index.min.asset.php';
	if ( file_exists( $asset_file ) ) {
		$asset = require $asset_file;

		// This script serves two purposes:
		// 1. It ensures all the globals that are made available to the modules are loaded.
		// 2. It initializes the boot module as an inline script.
		wp_register_script( 'font-library-wp-admin-prerequisites', '', $asset['dependencies'], $asset['version'], true );

		/*
		 * Add inline script to initialize the app using initSinglePage (no menuItems).
		 * The dynamic import is deferred until DOMContentLoaded so that all classic
		 * script dependencies of @wordpress/boot (wp-private-apis, wp-components,
		 * wp-theme, etc.) have finished parsing and executing before the boot module
		 * evaluates. Otherwise, a modulepreloaded @wordpress/boot can win the race
		 * against the classic-script-printing pass on fast CDN-fronted hosts in
		 * Chrome, evaluating before wp.theme.privateApis is defined and throwing
		 * "Cannot unlock an undefined object". See <https://core.trac.wordpress.org/ticket/65103>.
		 */
		$init_js_function = <<<'JS'
		( mountId, routes ) => {
			const run = async () => {
				const mod = await import( "@wordpress/boot" );
				mod.initSinglePage( { mountId, routes } );
			};
			if ( document.readyState === "loading" ) {
				document.addEventListener( "DOMContentLoaded", run );
			} else {
				run();
			}
		}
		JS;
		wp_add_inline_script(
			'font-library-wp-admin-prerequisites',
			sprintf(
				'( %s )( %s, %s );',
				$init_js_function,
				wp_json_encode( 'font-library-wp-admin-app', JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ),
				wp_json_encode( $routes, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES )
			)
		);

		// Register prerequisites style by filtering script dependencies to find registered styles
		$style_dependencies = array_filter(
			$asset['dependencies'],
			function ( $handle ) {
				return wp_style_is( $handle, 'registered' );
			}
		);
		wp_register_style( 'font-library-wp-admin-prerequisites', false, $style_dependencies, $asset['version'] );

		// Build dependencies for font-library-wp-admin module
		$boot_dependencies = array(
			array(
				'import' => 'static',
				'id'     => '@wordpress/boot',
			),
		);

		// Add all registered routes as dependencies
		foreach ( $routes as $route ) {
			if ( isset( $route['route_module'] ) ) {
				$boot_dependencies[] = array(
					'import' => 'static',
					'id'     => $route['route_module'],
				);
			}
			if ( isset( $route['content_module'] ) ) {
				$boot_dependencies[] = array(
					'import' => 'dynamic',
					'id'     => $route['content_module'],
				);
			}
		}

		// Dummy script module to ensure dependencies are loaded
		wp_register_script_module(
			'font-library-wp-admin',
			$build_constants['build_url'] . 'pages/font-library/loader.js',
			$boot_dependencies
		);

		// Enqueue the boot scripts and styles
		wp_enqueue_script( 'font-library-wp-admin-prerequisites' );
		wp_enqueue_script_module( 'font-library-wp-admin' );
		wp_enqueue_style( 'font-library-wp-admin-prerequisites' );
	}
}

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