'; } } add_action( 'wp_head', 'twentynineteen_pingback_header' ); /** * Changes comment form default fields. */ function twentynineteen_comment_form_defaults( $defaults ) { $comment_field = $defaults['comment_field']; // Adjust height of comment form. $defaults['comment_field'] = preg_replace( '/rows="\d+"/', 'rows="5"', $comment_field ); return $defaults; } add_filter( 'comment_form_defaults', 'twentynineteen_comment_form_defaults' ); /** * Filters the default archive titles. */ function twentynineteen_get_the_archive_title() { if ( is_category() ) { $title = __( 'Category Archives: ', 'twentynineteen' ) . '' . single_term_title( '', false ) . ''; } elseif ( is_tag() ) { $title = __( 'Tag Archives: ', 'twentynineteen' ) . '' . single_term_title( '', false ) . ''; } elseif ( is_author() ) { $title = __( 'Author Archives: ', 'twentynineteen' ) . '' . get_the_author_meta( 'display_name' ) . ''; } elseif ( is_year() ) { $title = __( 'Yearly Archives: ', 'twentynineteen' ) . '' . get_the_date( _x( 'Y', 'yearly archives date format', 'twentynineteen' ) ) . ''; } elseif ( is_month() ) { $title = __( 'Monthly Archives: ', 'twentynineteen' ) . '' . get_the_date( _x( 'F Y', 'monthly archives date format', 'twentynineteen' ) ) . ''; } elseif ( is_day() ) { $title = __( 'Daily Archives: ', 'twentynineteen' ) . '' . get_the_date() . ''; } elseif ( is_post_type_archive() ) { $title = __( 'Post Type Archives: ', 'twentynineteen' ) . '' . post_type_archive_title( '', false ) . ''; } elseif ( is_tax() ) { $tax = get_taxonomy( get_queried_object()->taxonomy ); /* translators: %s: Taxonomy singular name. */ $title = sprintf( esc_html__( '%s Archives:', 'twentynineteen' ), $tax->labels->singular_name ); } else { $title = __( 'Archives:', 'twentynineteen' ); } return $title; } add_filter( 'get_the_archive_title', 'twentynineteen_get_the_archive_title' ); /** * Determines if post thumbnail can be displayed. */ function twentynineteen_can_show_post_thumbnail() { return apply_filters( 'twentynineteen_can_show_post_thumbnail', ! post_password_required() && ! is_attachment() && has_post_thumbnail() ); } /** * Returns true if image filters are enabled on the theme options. */ function twentynineteen_image_filters_enabled() { return 0 !== get_theme_mod( 'image_filter', 1 ); } /** * Add custom sizes attribute to responsive image functionality for post thumbnails. * * @origin Twenty Nineteen 1.0 * * @param array $attr Attributes for the image markup. * @return string Value for use in post thumbnail 'sizes' attribute. */ function twentynineteen_post_thumbnail_sizes_attr( $attr ) { if ( is_admin() ) { return $attr; } if ( ! is_singular() ) { $attr['sizes'] = '(max-width: 34.9rem) calc(100vw - 2rem), (max-width: 53rem) calc(8 * (100vw / 12)), (min-width: 53rem) calc(6 * (100vw / 12)), 100vw'; } return $attr; } add_filter( 'wp_get_attachment_image_attributes', 'twentynineteen_post_thumbnail_sizes_attr', 10, 1 ); /** * Returns the size for avatars used in the theme. */ function twentynineteen_get_avatar_size() { return 60; } /** * Returns true if comment is by author of the post. * * @see get_comment_class() */ function twentynineteen_is_comment_by_post_author( $comment = null ) { if ( is_object( $comment ) && $comment->user_id > 0 ) { $user = get_userdata( $comment->user_id ); $post = get_post( $comment->comment_post_ID ); if ( ! empty( $user ) && ! empty( $post ) ) { return $comment->user_id === $post->post_author; } } return false; } /** * Returns information about the current post's discussion, with cache support. */ function twentynineteen_get_discussion_data() { static $discussion, $post_id; $current_post_id = get_the_ID(); if ( $current_post_id === $post_id ) { return $discussion; /* If we have discussion information for post ID, return cached object */ } else { $post_id = $current_post_id; } $comments = get_comments( array( 'post_id' => $current_post_id, 'orderby' => 'comment_date_gmt', 'order' => get_option( 'comment_order', 'asc' ), /* Respect comment order from Settings ยป Discussion. */ 'status' => 'approve', 'number' => 20, /* Only retrieve the last 20 comments, as the end goal is just 6 unique authors */ ) ); $authors = array(); foreach ( $comments as $comment ) { $authors[] = ( (int) $comment->user_id > 0 ) ? (int) $comment->user_id : $comment->comment_author_email; } $authors = array_unique( $authors ); $discussion = (object) array( 'authors' => array_slice( $authors, 0, 6 ), /* Six unique authors commenting on the post. */ 'responses' => get_comments_number( $current_post_id ), /* Number of responses. */ ); return $discussion; } /** * Add an extra menu to our nav for our priority+ navigation to use * * @param object $nav_menu Nav menu. * @param object $args Nav menu args. * @return string More link for hidden menu items. */ function twentynineteen_add_ellipses_to_nav( $nav_menu, $args ) { if ( 'menu-1' === $args->theme_location ) : $nav_menu .= '
'; endif; return $nav_menu; } add_filter( 'wp_nav_menu', 'twentynineteen_add_ellipses_to_nav', 10, 2 ); /** * WCAG 2.0 Attributes for Dropdown Menus * * Adjustments to menu attributes tot support WCAG 2.0 recommendations * for flyout and dropdown menus. * * @ref https://www.w3.org/WAI/tutorials/menus/flyout/ */ function twentynineteen_nav_menu_link_attributes( $atts, $item, $args, $depth ) { // Add [aria-haspopup] and [aria-expanded] to menu items that have children. $item_has_children = in_array( 'menu-item-has-children', $item->classes ); if ( $item_has_children ) { $atts['aria-haspopup'] = 'true'; $atts['aria-expanded'] = 'false'; } return $atts; } add_filter( 'nav_menu_link_attributes', 'twentynineteen_nav_menu_link_attributes', 10, 4 ); /** * Add a dropdown icon to top-level menu items. * * @param string $output Nav menu item start element. * @param object $item Nav menu item. * @param int $depth Depth. * @param object $args Nav menu args. * @return string Nav menu item start element. * Add a dropdown icon to top-level menu items */ function twentynineteen_add_dropdown_icons( $output, $item, $depth, $args ) { // Only add class to 'top level' items on the 'primary' menu. if ( ! isset( $args->theme_location ) || 'menu-1' !== $args->theme_location ) { return $output; } if ( in_array( 'mobile-parent-nav-menu-item', $item->classes, true ) && isset( $item->original_id ) ) { // Inject the keyboard_arrow_left SVG inside the parent nav menu item, and let the item link to the parent item. // @todo Only do this for nested submenus? If on a first-level submenu, then really the link could be "#" since the desire is to remove the target entirely. $link = sprintf( '', $output, 1 // Limit. ); } elseif ( in_array( 'menu-item-has-children', $item->classes, true ) ) { // Add SVG icon to parent items. $icon = twentynineteen_get_icon_svg( 'keyboard_arrow_down', 24 ); $output .= sprintf( '