msaari · February 2, 2017 07:12 · msaari · Feb 2, 2017
diff --git a/wp-amp-tutorial-menu.php b/wp-amp-tutorial-menu.php
 <?php
 /**
 * Render the Primary Nav Menu
 *
 * Uses amp-sidebar to handle
 * slideout animation.
 *
 * Be sure to include the amp-sidebar component script.
 * Also, rememeber that the amp-sidebar element must be 
 * a direct child of the <body>.
 *
 * @action {your custom template action}
 */
 function xwp_render_primary_nav() {
 	?>
 	<amp-sidebar id="site-menu" layout="nodisplay">
 		<ul>
 			<?php echo wp_kses_post( xwp_clean_nav_menu_items( 'primary' ) ); ?>
 			<li on="tap:site-menu.close"><?php esc_html_e( 'Close', 'wp-amp-tutorial' ); ?></li>
 		</ul>
 	</amp-sidebar>
 	
 	<?php // Note that "site-menu" matches the id of the amp-sidebar element. ?>
 	<button on='tap:site-menu.toggle'><?php esc_html_e( 'Open Menu', 'wp-amp-tutorial' ); ?></button>
 	<?php
 }
 add_action( '{your custom template action}', 'xwp_render_primary_nav' );

 /**
 * Render a menu with clean markup.
 *
 * @param string $location The desired Menu Location.
 *
 * @return string
 */
 function xwp_clean_nav_menu_items( $location ) {
 	$locations = get_nav_menu_locations();
 	if ( empty( $locations[ $location ] ) ) {
 		return '';
 	}

 	$menu = wp_get_nav_menu_object( $locations[ $location ] );
 	$menu_items = wp_get_nav_menu_items( $menu->term_id );

 	if ( empty( $menu_items ) || ! is_array( $menu_items ) ) {
 		return '';
 	}

 	ob_start();
 	foreach ( $menu_items as $key => $menu_item ) : 
 		$menu_item->menu_item_parent == 0 ? $class = "" : $class = " class='sub' "; ?>
 		<li<?php echo $class; ?>><a href="<?php echo esc_url( $menu_item->url ); ?>"><?php echo esc_html( $menu_item->title ); ?></a></li>
 	<?php endforeach;
 	return ob_get_clean();
 }