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Add Navigation Menu to an AMP WordPress Theme
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| <?php | |
| /** | |
| * Register the amp-sidebar component script with WP AMP. | |
| */ | |
| function add_amp_sidebar_component_script( $data ) { | |
| $data['amp_component_scripts']['amp-sidebar'] = 'https://cdn.ampproject.org/v0/amp-sidebar-0.1.js'; | |
| return $data; | |
| } | |
| add_filter( 'amp_post_template_data', 'add_amp_sidebar_component_script' ); | |
| /** | |
| * Render a menu with AMP clean markup. | |
| * | |
| * @param string $location The desired Menu Location. | |
| * | |
| * @return string Return AMP clean html. | |
| */ | |
| function amp_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 menu name empty. | |
| */ | |
| if ( empty( $menu_items ) || ! is_array( $menu_items ) ) { | |
| return ''; | |
| } | |
| ob_start(); | |
| foreach ( $menu_items as $key => $menu_item ) { ?> | |
| <li><a href="<?php echo esc_url( $menu_item->url ); ?>"><?php echo esc_html( $menu_item->title ); ?></a></li> | |
| <?php } | |
| endforeach; | |
| return ob_get_clean(); | |
| } |
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| <?php | |
| /* | |
| * Add the following HTML markup immediately after the opening | |
| * <body> tag in your AMP template file (single.php). | |
| * | |
| * The AMP Spec requires that this be a direct child of <body>, | |
| * and only one of these is allowed on a page. | |
| */ | |
| ?> | |
| <amp-sidebar id="site-menu" layout="nodisplay"> | |
| <ul> | |
| <?php | |
| // Replace 'primary' with whatever menu location you need. | |
| echo wp_kses_post( amp_clean_nav_menu_items( 'primary' ) ); | |
| ?> | |
| <li on="tap:site-menu.close"><?php esc_html_e( 'Close', 'amp-nav-menu' ); ?></li> | |
| </ul> | |
| </amp-sidebar> |
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