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class-wp-widget-recent-comments.php (7078B)

---

 <?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&#8217;s most recent comments.' ),
 			'customize_selective_refresh' => true,
 			'show_instance_in_rest'       => 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' );
 	}
 }