WordPress/wp-includes/widgets/class-wp-widget-recent-comments.php

163 lines
5.2 KiB
PHP

<?php
/**
* Recent_Comments widget class
*
* @since 2.8.0
* @package WordPress
* @subpackage Widgets
*/
class WP_Widget_Recent_Comments extends WP_Widget {
public function __construct() {
$widget_ops = array('classname' => 'widget_recent_comments', 'description' => __( 'Your site&#8217;s most recent comments.' ) );
parent::__construct('recent-comments', __('Recent Comments'), $widget_ops);
$this->alt_option_name = 'widget_recent_comments';
if ( is_active_widget(false, false, $this->id_base) )
add_action( 'wp_head', array($this, 'recent_comments_style') );
add_action( 'comment_post', array($this, 'flush_widget_cache') );
add_action( 'edit_comment', array($this, 'flush_widget_cache') );
add_action( 'transition_comment_status', array($this, 'flush_widget_cache') );
}
/**
* @access public
*/
public function recent_comments_style() {
/**
* Filter 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;
?>
<style type="text/css">.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style>
<?php
}
/**
* @access public
*/
public function flush_widget_cache() {
wp_cache_delete('widget_recent_comments', 'widget');
}
/**
* @param array $args
* @param array $instance
*/
public function widget( $args, $instance ) {
$cache = array();
if ( ! $this->is_preview() ) {
$cache = wp_cache_get('widget_recent_comments', 'widget');
}
if ( ! is_array( $cache ) ) {
$cache = array();
}
if ( ! isset( $args['widget_id'] ) )
$args['widget_id'] = $this->id;
if ( isset( $cache[ $args['widget_id'] ] ) ) {
echo $cache[ $args['widget_id'] ];
return;
}
$output = '';
$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : __( 'Recent Comments' );
/** 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;
/**
* Filter the arguments for the Recent Comments widget.
*
* @since 3.4.0
*
* @see WP_Comment_Query::query() for information on accepted arguments.
*
* @param array $comment_args An array of arguments used to retrieve the recent comments.
*/
$comments = get_comments( apply_filters( 'widget_comments_args', array(
'number' => $number,
'status' => 'approve',
'post_status' => 'publish'
) ) );
$output .= $args['before_widget'];
if ( $title ) {
$output .= $args['before_title'] . $title . $args['after_title'];
}
$output .= '<ul id="recentcomments">';
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">';
/* translators: comments widget: 1: comment author, 2: post link */
$output .= sprintf( _x( '%1$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>';
$output .= $args['after_widget'];
echo $output;
if ( ! $this->is_preview() ) {
$cache[ $args['widget_id'] ] = $output;
wp_cache_set( 'widget_recent_comments', $cache, 'widget' );
}
}
/**
* @param array $new_instance
* @param array $old_instance
* @return array
*/
public function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = sanitize_text_field( $new_instance['title'] );
$instance['number'] = absint( $new_instance['number'] );
$this->flush_widget_cache();
$alloptions = wp_cache_get( 'alloptions', 'options' );
if ( isset($alloptions['widget_recent_comments']) )
delete_option('widget_recent_comments');
return $instance;
}
/**
* @param array $instance
*/
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 id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>
<?php
}
}