File Content: about.php <?php class RWMB_About { private $is_pro = false; public function __construct( $update_checker ) { $this->is_pro = $update_checker && $update_checker->has_extensions(); } public function init(): void { // Add links to about page in the plugin action links. add_filter( 'plugin_action_links_meta-box/meta-box.php', [ $this, 'plugin_links' ], 20 ); // Add a shared top-level admin menu and Dashboard page. Use priority 5 to show Dashboard at the top. add_action( 'admin_menu', [ $this, 'add_menu' ], 5 ); add_action( 'admin_menu', [ $this, 'add_submenu' ], 5 ); // If no admin menu, then hide the About page. add_action( 'admin_head', [ $this, 'hide_page' ] ); // Redirect to about page after activation. add_action( 'activated_plugin', [ $this, 'redirect' ], 10, 2 ); } public function plugin_links( array $links ): array { $links[] = '<a href="' . esc_url( $this->get_menu_link() ) . '">' . esc_html__( 'About', 'wgl-extensions' ) . '</a>'; if ( ! $this->is_pro ) { $links[] = '<a href="https://elu.to/mpp" style="color: #39b54a; font-weight: bold">' . esc_html__( 'Go Pro', 'wgl-extensions' ) . '</a>'; } return $links; } public function add_menu(): void { if ( ! $this->has_menu() ) { return; } add_menu_page( __( 'Meta Box', 'wgl-extensions' ), __( 'Meta Box', 'wgl-extensions' ), 'activate_plugins', 'meta-box', '__return_null', 'data:image/svg+xml;base64,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' ); } public function add_submenu(): void { $parent_menu = $this->has_menu() ? 'meta-box' : $this->get_parent_menu(); $about = add_submenu_page( $parent_menu, __( 'Welcome to Meta Box', 'wgl-extensions' ), __( 'Dashboard', 'wgl-extensions' ), 'activate_plugins', 'meta-box', [ $this, 'render' ] ); add_action( "load-$about", [ $this, 'enqueue' ] ); } public function hide_page(): void { remove_submenu_page( $this->get_parent_menu(), 'meta-box' ); } public function render(): void { ?> <div class="wrap"> <div id="poststuff"> <div id="post-body" class="metabox-holder columns-2"> <div id="post-body-content"> <div class="about-wrap"> <?php include __DIR__ . '/sections/welcome.php'; include __DIR__ . '/sections/tabs.php'; if ( $this->is_pro ) { include __DIR__ . '/sections/getting-started-pro.php'; } else { include __DIR__ . '/sections/getting-started.php'; } include __DIR__ . '/sections/extensions.php'; include __DIR__ . '/sections/support.php'; do_action( 'rwmb_about_tabs_content' ); ?> </div> </div> <div id="postbox-container-1" class="postbox-container"> <?php include __DIR__ . '/sections/products.php'; include __DIR__ . '/sections/review.php'; if ( ! $this->is_pro ) { include __DIR__ . '/sections/upgrade.php'; } ?> </div> </div> </div> </div> <?php } public function enqueue(): void { wp_enqueue_style( 'meta-box-about', RWMB_URL . 'inc/about/css/about.css', [], RWMB_VER ); wp_enqueue_script( 'meta-box-about', RWMB_URL . 'inc/about/js/about.js', [ 'jquery' ], RWMB_VER, true ); } /** * Redirect to about page after Meta Box has been activated. * * @param string $plugin Path to the main plugin file from plugins directory. * @param bool $network_wide Whether to enable the plugin for all sites in the network * or just the current site. Multisite only. Default is false. */ public function redirect( $plugin, $network_wide = false ): void { $is_cli = 'cli' === php_sapi_name(); $is_plugin = 'meta-box/meta-box.php' === $plugin; $is_bulk_activate = 'activate-selected' === rwmb_request()->post( 'action' ) && count( rwmb_request()->post( 'checked' ) ) > 1; $is_doing_ajax = defined( 'DOING_AJAX' ) && DOING_AJAX; if ( ! $is_plugin || $network_wide || $is_cli || $is_bulk_activate || $this->is_bundled() || $is_doing_ajax ) { return; } wp_safe_redirect( $this->get_menu_link() ); die; } private function get_menu_link(): string { $menu = $this->has_menu() ? 'admin.php?page=meta-box' : $this->get_parent_menu() . '?page=meta-box'; return admin_url( $menu ); } private function get_parent_menu(): string { return 'plugins.php'; } private function has_menu(): bool { return apply_filters( 'rwmb_admin_menu', false ); } private function is_bundled(): bool { // @codingStandardsIgnoreLine foreach ( $_REQUEST as $key => $value ) { if ( str_contains( $key, 'tgmpa' ) || ( is_string( $value ) && str_contains( $value, 'tgmpa' ) ) ) { return true; } } return false; } } Submit