';
}
}
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 .= '';
$nav_menu .= '
';
$nav_menu .= '';
$nav_menu .= '
';
$nav_menu .= '