<?php
/**
* Widget API: WP_Widget_Recent_Comments class
*
* @package WordPress
* @subpackage Widgets
* @since 4.4.0
*/
/**
* Core class used to implement a Recent Comments widget.
*
* @since 2.8.0
*
* @see WP_Widget
*/
class WP_Widget_Recent_Comments extends WP_Widget {
/**
* Sets up a new Recent Comments widget instance.
*
* @since 2.8.0
*/
public function __construct() {
$widget_ops = array(
'classname' => 'widget_recent_comments',
'description' => __( 'Your site’s most recent comments.' ),
'customize_selective_refresh' => true,
);
parent::__construct( 'recent-comments', __( 'Recent Comments' ), $widget_ops );
$this->alt_option_name = 'widget_recent_comments';
if ( is_active_widget( false, false, $this->id_base ) || is_customize_preview() ) {
add_action( 'wp_head', array( $this, 'recent_comments_style' ) );
}
}
/**
* Outputs the default styles for the Recent Comments widget.
*
* @since 2.8.0
*/
public function recent_comments_style() {
/**
* Filters the Recent Comments default widget styles.
*
* @since 3.1.0
*
* @param bool $active Whether the widget is active. Default true.
* @param string $id_base The widget ID.
*/
if ( ! current_theme_supports( 'widgets' ) // Temp hack #14876.
|| ! apply_filters( 'show_recent_comments_widget_style', true, $this->id_base ) ) {
return;
}
$type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';
printf(
'<style%s>.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style>',
$type_attr
);
}
/**
* Outputs the content for the current Recent Comments widget instance.
*
* @since 2.8.0
* @since 5.4.0 Creates a unique HTML ID for the `<ul>` element
* if more than one instance is displayed on the page.
*
* @param array $args Display arguments including 'before_title', 'after_title',
* 'before_widget', and 'after_widget'.
* @param array $instance Settings for the current Recent Comments widget instance.
*/
public function widget( $args, $instance ) {
static $first_instance = true;
if ( ! isset( $args['widget_id'] ) ) {
$args['widget_id'] = $this->id;
}
$output = '';
$default_title = __( 'Recent Comments' );
$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : $default_title;
/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 5;
if ( ! $number ) {
$number = 5;
}
$comments = get_comments(
/**
* Filters the arguments for the Recent Comments widget.
*
* @since 3.4.0
* @since 4.9.0 Added the `$instance` parameter.
*
* @see WP_Comment_Query::query() for information on accepted arguments.
*
* @param array $comment_args An array of arguments used to retrieve the recent comments.
* @param array $instance Array of settings for the current widget.
*/
apply_filters(
'widget_comments_args',
array(
'number' => $number,
'status' => 'approve',
'post_status' => 'publish',
),
$instance
)
);
$output .= $args['before_widget'];
if ( $title ) {
$output .= $args['before_title'] . $title . $args['after_title'];
}
$recent_comments_id = ( $first_instance ) ? 'recentcomments' : "recentcomments-{$this->number}";
$first_instance = false;
$format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml';
/** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */
$format = apply_filters( 'navigation_widgets_format', $format );
if ( 'html5' === $format ) {
// The title may be filtered: Strip out HTML and make sure the aria-label is never empty.
$title = trim( strip_tags( $title ) );
$aria_label = $title ? $title : $default_title;
$output .= '<nav role="navigation" aria-label="' . esc_attr( $aria_label ) . '">';
}
$output .= '<ul id="' . esc_attr( $recent_comments_id ) . '">';
if ( is_array( $comments ) && $comments ) {
// Prime cache for associated posts. (Prime post term cache if we need it for permalinks.)
$post_ids = array_unique( wp_list_pluck( $comments, 'comment_post_ID' ) );
_prime_post_caches( $post_ids, strpos( get_option( 'permalink_structure' ), '%category%' ), false );
foreach ( (array) $comments as $comment ) {
$output .= '<li class="recentcomments">';
$output .= sprintf(
/* translators: Comments widget. 1: Comment author, 2: Post link. */
_x( '%1$s on %2$s', 'widgets' ),
'<span class="comment-author-link">' . get_comment_author_link( $comment ) . '</span>',
'<a href="' . esc_url( get_comment_link( $comment ) ) . '">' . get_the_title( $comment->comment_post_ID ) . '</a>'
);
$output .= '</li>';
}
}
$output .= '</ul>';
if ( 'html5' === $format ) {
$output .= '</nav>';
}
$output .= $args['after_widget'];
echo $output;
}
/**
* Handles updating settings for the current Recent Comments widget instance.
*
* @since 2.8.0
*
* @param array $new_instance New settings for this instance as input by the user via
* WP_Widget::form().
* @param array $old_instance Old settings for this instance.
* @return array Updated settings to save.
*/
public function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = sanitize_text_field( $new_instance['title'] );
$instance['number'] = absint( $new_instance['number'] );
return $instance;
}
/**
* Outputs the settings form for the Recent Comments widget.
*
* @since 2.8.0
*
* @param array $instance Current settings.
*/
public function form( $instance ) {
$title = isset( $instance['title'] ) ? $instance['title'] : '';
$number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5;
?>
<p>
<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of comments to show:' ); ?></label>
<input class="tiny-text" id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="number" step="1" min="1" value="<?php echo $number; ?>" size="3" />
</p>
<?php
}
/**
* Flushes the Recent Comments widget cache.
*
* @since 2.8.0
*
* @deprecated 4.4.0 Fragment caching was removed in favor of split queries.
*/
public function flush_widget_cache() {
_deprecated_function( __METHOD__, '4.4.0' );
}
}