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<?php |
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/** |
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* Widget API: WP_Widget_Recent_Comments class |
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* |
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* @package WordPress |
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* @subpackage Widgets |
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* @since 4.4.0 |
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*/ |
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/** |
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* Core class used to implement a Recent Comments widget. |
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* |
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* @since 2.8.0 |
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* |
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* @see WP_Widget |
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*/ |
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class WP_Widget_Recent_Comments extends WP_Widget { |
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/** |
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* Sets up a new Recent Comments widget instance. |
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* |
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* @since 2.8.0 |
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* @access public |
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*/ |
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public function __construct() { |
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$widget_ops = array('classname' => 'widget_recent_comments', 'description' => __( 'Your site’s most recent comments.' ) ); |
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parent::__construct('recent-comments', __('Recent Comments'), $widget_ops); |
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$this->alt_option_name = 'widget_recent_comments'; |
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if ( is_active_widget(false, false, $this->id_base) ) |
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add_action( 'wp_head', array($this, 'recent_comments_style') ); |
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} |
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/** |
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* Outputs the default styles for the Recent Comments widget. |
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* |
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* @since 2.8.0 |
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* @access public |
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*/ |
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public function recent_comments_style() { |
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/** |
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* Filter the Recent Comments default widget styles. |
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* |
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* @since 3.1.0 |
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* |
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* @param bool $active Whether the widget is active. Default true. |
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* @param string $id_base The widget ID. |
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*/ |
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if ( ! current_theme_supports( 'widgets' ) // Temp hack #14876 |
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|| ! apply_filters( 'show_recent_comments_widget_style', true, $this->id_base ) ) |
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return; |
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?> |
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<style type="text/css">.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style> |
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<?php |
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} |
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/** |
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* Outputs the content for the current Recent Comments widget instance. |
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* |
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* @since 2.8.0 |
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* @access public |
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* |
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* @param array $args Display arguments including 'before_title', 'after_title', |
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* 'before_widget', and 'after_widget'. |
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* @param array $instance Settings for the current Recent Comments widget instance. |
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*/ |
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public function widget( $args, $instance ) { |
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if ( ! isset( $args['widget_id'] ) ) |
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$args['widget_id'] = $this->id; |
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$output = ''; |
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$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : __( 'Recent Comments' ); |
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/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */ |
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$title = apply_filters( 'widget_title', $title, $instance, $this->id_base ); |
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$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 5; |
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if ( ! $number ) |
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$number = 5; |
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/** |
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* Filter the arguments for the Recent Comments widget. |
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* |
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* @since 3.4.0 |
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* |
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* @see WP_Comment_Query::query() for information on accepted arguments. |
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* |
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* @param array $comment_args An array of arguments used to retrieve the recent comments. |
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*/ |
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$comments = get_comments( apply_filters( 'widget_comments_args', array( |
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'number' => $number, |
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'status' => 'approve', |
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'post_status' => 'publish' |
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) ) ); |
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$output .= $args['before_widget']; |
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if ( $title ) { |
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$output .= $args['before_title'] . $title . $args['after_title']; |
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} |
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$output .= '<ul id="recentcomments">'; |
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if ( is_array( $comments ) && $comments ) { |
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// Prime cache for associated posts. (Prime post term cache if we need it for permalinks.) |
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$post_ids = array_unique( wp_list_pluck( $comments, 'comment_post_ID' ) ); |
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_prime_post_caches( $post_ids, strpos( get_option( 'permalink_structure' ), '%category%' ), false ); |
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foreach ( (array) $comments as $comment ) { |
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$output .= '<li class="recentcomments">'; |
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/* translators: comments widget: 1: comment author, 2: post link */ |
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$output .= sprintf( _x( '%1$s on %2$s', 'widgets' ), |
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'<span class="comment-author-link">' . get_comment_author_link( $comment ) . '</span>', |
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'<a href="' . esc_url( get_comment_link( $comment ) ) . '">' . get_the_title( $comment->comment_post_ID ) . '</a>' |
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); |
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$output .= '</li>'; |
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} |
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} |
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$output .= '</ul>'; |
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$output .= $args['after_widget']; |
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echo $output; |
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} |
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/** |
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* Handles updating settings for the current Recent Comments widget instance. |
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* |
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* @since 2.8.0 |
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* @access public |
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* |
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* @param array $new_instance New settings for this instance as input by the user via |
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* WP_Widget::form(). |
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* @param array $old_instance Old settings for this instance. |
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* @return array Updated settings to save. |
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*/ |
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View Code Duplication |
public function update( $new_instance, $old_instance ) { |
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$instance = $old_instance; |
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$instance['title'] = sanitize_text_field( $new_instance['title'] ); |
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$instance['number'] = absint( $new_instance['number'] ); |
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return $instance; |
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} |
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/** |
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* Outputs the settings form for the Recent Comments widget. |
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* |
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* @since 2.8.0 |
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* @access public |
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* |
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* @param array $instance Current settings. |
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*/ |
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public function form( $instance ) { |
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$title = isset( $instance['title'] ) ? $instance['title'] : ''; |
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$number = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5; |
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?> |
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<p><label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label> |
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<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> |
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<p><label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of comments to show:' ); ?></label> |
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<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> |
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<?php |
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} |
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/** |
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* Flushes the Recent Comments widget cache. |
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* |
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* @since 2.8.0 |
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* @access public |
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* |
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* @deprecated 4.4.0 Fragment caching was removed in favor of split queries. |
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*/ |
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public function flush_widget_cache() { |
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_deprecated_function( __METHOD__, '4.4' ); |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: