493 lines
14 KiB
PHP
493 lines
14 KiB
PHP
<?php
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/**
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* Comment API: Walker_Comment class
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*
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* @package WordPress
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* @subpackage Comments
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* @since 4.4.0
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*/
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/**
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* Core walker class used to create an HTML list of comments.
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*
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* @since 2.7.0
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*
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* @see Walker
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*/
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class Walker_Comment extends Walker {
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/**
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* What the class handles.
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*
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* @since 2.7.0
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* @var string
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*
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* @see Walker::$tree_type
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*/
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public $tree_type = 'comment';
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/**
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* Database fields to use.
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*
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* @since 2.7.0
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* @var string[]
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*
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* @see Walker::$db_fields
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* @todo Decouple this
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*/
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public $db_fields = array(
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'parent' => 'comment_parent',
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'id' => 'comment_ID',
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);
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/**
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* Starts the list before the elements are added.
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*
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* @since 2.7.0
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*
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* @see Walker::start_lvl()
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* @global int $comment_depth
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param int $depth Optional. Depth of the current comment. Default 0.
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* @param array $args Optional. Uses 'style' argument for type of HTML list. Default empty array.
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*/
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public function start_lvl( &$output, $depth = 0, $args = array() ) {
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$GLOBALS['comment_depth'] = $depth + 1;
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switch ( $args['style'] ) {
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case 'div':
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break;
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case 'ol':
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$output .= '<ol class="children">' . "\n";
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break;
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case 'ul':
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default:
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$output .= '<ul class="children">' . "\n";
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break;
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}
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}
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/**
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* Ends the list of items after the elements are added.
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*
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* @since 2.7.0
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*
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* @see Walker::end_lvl()
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* @global int $comment_depth
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param int $depth Optional. Depth of the current comment. Default 0.
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* @param array $args Optional. Will only append content if style argument value is 'ol' or 'ul'.
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* Default empty array.
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*/
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public function end_lvl( &$output, $depth = 0, $args = array() ) {
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$GLOBALS['comment_depth'] = $depth + 1;
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switch ( $args['style'] ) {
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case 'div':
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break;
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case 'ol':
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$output .= "</ol><!-- .children -->\n";
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break;
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case 'ul':
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default:
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$output .= "</ul><!-- .children -->\n";
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break;
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}
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}
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/**
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* Traverses elements to create list from elements.
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*
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* This function is designed to enhance Walker::display_element() to
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* display children of higher nesting levels than selected inline on
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* the highest depth level displayed. This prevents them being orphaned
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* at the end of the comment list.
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*
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* Example: max_depth = 2, with 5 levels of nested content.
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* 1
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* 1.1
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* 1.1.1
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* 1.1.1.1
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* 1.1.1.1.1
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* 1.1.2
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* 1.1.2.1
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* 2
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* 2.2
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*
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* @since 2.7.0
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*
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* @see Walker::display_element()
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* @see wp_list_comments()
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*
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* @param WP_Comment $element Comment data object.
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* @param array $children_elements List of elements to continue traversing. Passed by reference.
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* @param int $max_depth Max depth to traverse.
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* @param int $depth Depth of the current element.
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* @param array $args An array of arguments.
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* @param string $output Used to append additional content. Passed by reference.
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*/
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public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) {
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if ( ! $element ) {
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return;
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}
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$id_field = $this->db_fields['id'];
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$id = $element->$id_field;
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parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output );
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/*
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* If at the max depth, and the current element still has children, loop over those
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* and display them at this level. This is to prevent them being orphaned to the end
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* of the list.
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*/
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if ( $max_depth <= $depth + 1 && isset( $children_elements[ $id ] ) ) {
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foreach ( $children_elements[ $id ] as $child ) {
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$this->display_element( $child, $children_elements, $max_depth, $depth, $args, $output );
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}
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unset( $children_elements[ $id ] );
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}
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}
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/**
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* Starts the element output.
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*
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* @since 2.7.0
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* @since 5.9.0 Renamed `$comment` to `$data_object` and `$id` to `$current_object_id`
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* to match parent class for PHP 8 named parameter support.
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*
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* @see Walker::start_el()
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* @see wp_list_comments()
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* @global int $comment_depth
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* @global WP_Comment $comment Global comment object.
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*
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* @param string $output Used to append additional content. Passed by reference.
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* @param WP_Comment $data_object Comment data object.
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* @param int $depth Optional. Depth of the current comment in reference to parents. Default 0.
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* @param array $args Optional. An array of arguments. Default empty array.
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* @param int $current_object_id Optional. ID of the current comment. Default 0.
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*/
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public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) {
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// Restores the more descriptive, specific name for use within this method.
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$comment = $data_object;
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$depth++;
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$GLOBALS['comment_depth'] = $depth;
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$GLOBALS['comment'] = $comment;
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if ( ! empty( $args['callback'] ) ) {
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ob_start();
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call_user_func( $args['callback'], $comment, $args, $depth );
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$output .= ob_get_clean();
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return;
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}
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if ( 'comment' === $comment->comment_type ) {
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add_filter( 'comment_text', array( $this, 'filter_comment_text' ), 40, 2 );
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}
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if ( ( 'pingback' === $comment->comment_type || 'trackback' === $comment->comment_type ) && $args['short_ping'] ) {
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ob_start();
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$this->ping( $comment, $depth, $args );
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$output .= ob_get_clean();
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} elseif ( 'html5' === $args['format'] ) {
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ob_start();
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$this->html5_comment( $comment, $depth, $args );
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$output .= ob_get_clean();
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} else {
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ob_start();
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$this->comment( $comment, $depth, $args );
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$output .= ob_get_clean();
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}
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if ( 'comment' === $comment->comment_type ) {
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remove_filter( 'comment_text', array( $this, 'filter_comment_text' ), 40 );
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}
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}
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/**
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* Ends the element output, if needed.
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*
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* @since 2.7.0
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* @since 5.9.0 Renamed `$comment` to `$data_object` to match parent class for PHP 8 named parameter support.
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*
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* @see Walker::end_el()
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* @see wp_list_comments()
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*
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* @param string $output Used to append additional content. Passed by reference.
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* @param WP_Comment $data_object Comment data object.
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* @param int $depth Optional. Depth of the current comment. Default 0.
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* @param array $args Optional. An array of arguments. Default empty array.
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*/
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public function end_el( &$output, $data_object, $depth = 0, $args = array() ) {
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if ( ! empty( $args['end-callback'] ) ) {
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ob_start();
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call_user_func(
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$args['end-callback'],
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$data_object, // The current comment object.
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$args,
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$depth
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);
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$output .= ob_get_clean();
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return;
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}
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if ( 'div' === $args['style'] ) {
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$output .= "</div><!-- #comment-## -->\n";
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} else {
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$output .= "</li><!-- #comment-## -->\n";
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}
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}
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/**
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* Outputs a pingback comment.
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*
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* @since 3.6.0
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*
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* @see wp_list_comments()
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*
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* @param WP_Comment $comment The comment object.
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* @param int $depth Depth of the current comment.
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* @param array $args An array of arguments.
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*/
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protected function ping( $comment, $depth, $args ) {
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$tag = ( 'div' === $args['style'] ) ? 'div' : 'li';
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?>
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<<?php echo $tag; ?> id="comment-<?php comment_ID(); ?>" <?php comment_class( '', $comment ); ?>>
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<div class="comment-body">
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<?php _e( 'Pingback:' ); ?> <?php comment_author_link( $comment ); ?> <?php edit_comment_link( __( 'Edit' ), '<span class="edit-link">', '</span>' ); ?>
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</div>
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<?php
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}
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/**
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* Filters the comment text.
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*
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* Removes links from the pending comment's text if the commenter did not consent
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* to the comment cookies.
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*
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* @since 5.4.2
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*
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* @param string $comment_text Text of the current comment.
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* @param WP_Comment|null $comment The comment object. Null if not found.
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* @return string Filtered text of the current comment.
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*/
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public function filter_comment_text( $comment_text, $comment ) {
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$commenter = wp_get_current_commenter();
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$show_pending_links = ! empty( $commenter['comment_author'] );
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if ( $comment && '0' == $comment->comment_approved && ! $show_pending_links ) {
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$comment_text = wp_kses( $comment_text, array() );
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}
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return $comment_text;
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}
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/**
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* Outputs a single comment.
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*
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* @since 3.6.0
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*
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* @see wp_list_comments()
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*
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* @param WP_Comment $comment Comment to display.
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* @param int $depth Depth of the current comment.
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* @param array $args An array of arguments.
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*/
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protected function comment( $comment, $depth, $args ) {
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if ( 'div' === $args['style'] ) {
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$tag = 'div';
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$add_below = 'comment';
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} else {
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$tag = 'li';
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$add_below = 'div-comment';
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}
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$commenter = wp_get_current_commenter();
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$show_pending_links = isset( $commenter['comment_author'] ) && $commenter['comment_author'];
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if ( $commenter['comment_author_email'] ) {
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$moderation_note = __( 'Your comment is awaiting moderation.' );
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} else {
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$moderation_note = __( 'Your comment is awaiting moderation. This is a preview; your comment will be visible after it has been approved.' );
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}
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?>
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<<?php echo $tag; ?> <?php comment_class( $this->has_children ? 'parent' : '', $comment ); ?> id="comment-<?php comment_ID(); ?>">
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<?php if ( 'div' !== $args['style'] ) : ?>
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<div id="div-comment-<?php comment_ID(); ?>" class="comment-body">
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<?php endif; ?>
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<div class="comment-author vcard">
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<?php
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if ( 0 != $args['avatar_size'] ) {
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echo get_avatar( $comment, $args['avatar_size'] );
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}
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?>
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<?php
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$comment_author = get_comment_author_link( $comment );
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if ( '0' == $comment->comment_approved && ! $show_pending_links ) {
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$comment_author = get_comment_author( $comment );
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}
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printf(
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/* translators: %s: Comment author link. */
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__( '%s <span class="says">says:</span>' ),
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sprintf( '<cite class="fn">%s</cite>', $comment_author )
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);
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?>
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</div>
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<?php if ( '0' == $comment->comment_approved ) : ?>
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<em class="comment-awaiting-moderation"><?php echo $moderation_note; ?></em>
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<br />
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<?php endif; ?>
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<div class="comment-meta commentmetadata">
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<?php
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printf(
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'<a href="%s">%s</a>',
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esc_url( get_comment_link( $comment, $args ) ),
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sprintf(
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/* translators: 1: Comment date, 2: Comment time. */
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__( '%1$s at %2$s' ),
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get_comment_date( '', $comment ),
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get_comment_time()
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)
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);
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edit_comment_link( __( '(Edit)' ), ' ', '' );
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?>
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</div>
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<?php
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comment_text(
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$comment,
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array_merge(
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$args,
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array(
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'add_below' => $add_below,
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'depth' => $depth,
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'max_depth' => $args['max_depth'],
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)
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)
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);
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?>
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<?php
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comment_reply_link(
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array_merge(
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$args,
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array(
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'add_below' => $add_below,
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'depth' => $depth,
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'max_depth' => $args['max_depth'],
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'before' => '<div class="reply">',
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'after' => '</div>',
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)
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)
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);
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?>
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<?php if ( 'div' !== $args['style'] ) : ?>
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</div>
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<?php endif; ?>
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<?php
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}
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/**
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* Outputs a comment in the HTML5 format.
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*
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* @since 3.6.0
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*
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* @see wp_list_comments()
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*
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* @param WP_Comment $comment Comment to display.
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* @param int $depth Depth of the current comment.
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* @param array $args An array of arguments.
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*/
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protected function html5_comment( $comment, $depth, $args ) {
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$tag = ( 'div' === $args['style'] ) ? 'div' : 'li';
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$commenter = wp_get_current_commenter();
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$show_pending_links = ! empty( $commenter['comment_author'] );
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if ( $commenter['comment_author_email'] ) {
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$moderation_note = __( 'Your comment is awaiting moderation.' );
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} else {
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$moderation_note = __( 'Your comment is awaiting moderation. This is a preview; your comment will be visible after it has been approved.' );
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}
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?>
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<<?php echo $tag; ?> id="comment-<?php comment_ID(); ?>" <?php comment_class( $this->has_children ? 'parent' : '', $comment ); ?>>
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<article id="div-comment-<?php comment_ID(); ?>" class="comment-body">
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<footer class="comment-meta">
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<div class="comment-author vcard">
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<?php
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if ( 0 != $args['avatar_size'] ) {
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echo get_avatar( $comment, $args['avatar_size'] );
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}
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?>
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<?php
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$comment_author = get_comment_author_link( $comment );
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if ( '0' == $comment->comment_approved && ! $show_pending_links ) {
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$comment_author = get_comment_author( $comment );
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}
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printf(
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/* translators: %s: Comment author link. */
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__( '%s <span class="says">says:</span>' ),
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sprintf( '<b class="fn">%s</b>', $comment_author )
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);
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?>
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</div><!-- .comment-author -->
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<div class="comment-metadata">
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<?php
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printf(
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'<a href="%s"><time datetime="%s">%s</time></a>',
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esc_url( get_comment_link( $comment, $args ) ),
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get_comment_time( 'c' ),
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sprintf(
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/* translators: 1: Comment date, 2: Comment time. */
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__( '%1$s at %2$s' ),
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get_comment_date( '', $comment ),
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get_comment_time()
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)
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);
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edit_comment_link( __( 'Edit' ), ' <span class="edit-link">', '</span>' );
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?>
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</div><!-- .comment-metadata -->
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<?php if ( '0' == $comment->comment_approved ) : ?>
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<em class="comment-awaiting-moderation"><?php echo $moderation_note; ?></em>
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<?php endif; ?>
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</footer><!-- .comment-meta -->
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<div class="comment-content">
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<?php comment_text(); ?>
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</div><!-- .comment-content -->
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<?php
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if ( '1' == $comment->comment_approved || $show_pending_links ) {
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comment_reply_link(
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array_merge(
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$args,
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array(
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'add_below' => 'div-comment',
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'depth' => $depth,
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'max_depth' => $args['max_depth'],
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'before' => '<div class="reply">',
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'after' => '</div>',
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)
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)
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);
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}
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?>
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</article><!-- .comment-body -->
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<?php
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}
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}
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