364 lines
10 KiB
PHP
364 lines
10 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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* @access public
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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 $tree_type = 'comment';
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/**
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* Database fields to use.
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*
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* @since 2.7.0
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* @access public
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* @var array
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*
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* @see Walker::$db_fields
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* @todo Decouple this
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*/
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public $db_fields = array ('parent' => 'comment_parent', 'id' => 'comment_ID');
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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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* @access public
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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 Passed by reference. Used to append additional content.
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* @param int $depth Depth of comment.
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* @param array $args Uses 'style' argument for type of HTML list.
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*/
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public function start_lvl( &$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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* @access public
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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 Passed by reference. Used to append additional content.
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* @param int $depth Depth of comment.
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* @param array $args Will only append content if style argument value is 'ol' or 'ul'.
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*/
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public function end_lvl( &$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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* @access public
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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 object $element Data object.
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* @param array $children_elements List of elements to continue traversing.
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* @param int $max_depth Max depth to traverse.
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* @param int $depth Depth of current element.
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* @param array $args An array of arguments.
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* @param string $output Passed by reference. Used to append additional content.
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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 ( !$element )
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return;
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$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 we're at the max depth, and the current element still has children,
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* loop over those and display them at this level. This is to prevent them
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* being orphaned to the end 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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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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* @access public
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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
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*
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* @param string $output Passed by reference. Used to append additional content.
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* @param object $comment Comment data object.
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* @param int $depth Depth of comment in reference to parents.
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* @param array $args An array of arguments.
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* @param int $id Optional. ID of the current comment. Default 0 (unused).
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*/
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public function start_el( &$output, $comment, $depth = 0, $args = array(), $id = 0 ) {
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$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 ( ( '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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}
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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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* @access public
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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 Passed by reference. Used to append additional content.
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* @param WP_Comment $comment The comment object. Default current comment.
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* @param int $depth Depth of comment.
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* @param array $args An array of arguments.
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*/
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public function end_el( &$output, $comment, $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( $args['end-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 ( '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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* Outputs a pingback comment.
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*
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* @since 3.6.0
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* @access protected
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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 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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* Outputs a single comment.
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*
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* @since 3.6.0
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* @access protected
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*
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* @see wp_list_comments()
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*
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* @param object $comment Comment to display.
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* @param int $depth Depth of 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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?>
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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 if ( 0 != $args['avatar_size'] ) echo get_avatar( $comment, $args['avatar_size'] ); ?>
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<?php printf( __( '<cite class="fn">%s</cite> <span class="says">says:</span>' ), get_comment_author_link( $comment ) ); ?>
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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 _e( 'Your comment is awaiting moderation.' ) ?></em>
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<br />
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<?php endif; ?>
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<div class="comment-meta commentmetadata"><a href="<?php echo esc_url( get_comment_link( $comment, $args ) ); ?>">
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<?php
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/* translators: 1: comment date, 2: comment time */
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printf( __( '%1$s at %2$s' ), get_comment_date( '', $comment ), get_comment_time() ); ?></a><?php edit_comment_link( __( '(Edit)' ), ' ', '' );
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?>
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</div>
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<?php comment_text( get_comment_id(), array_merge( $args, array( 'add_below' => $add_below, 'depth' => $depth, 'max_depth' => $args['max_depth'] ) ) ); ?>
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<?php
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comment_reply_link( array_merge( $args, 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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<?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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* @access protected
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*
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* @see wp_list_comments()
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*
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* @param object $comment Comment to display.
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* @param int $depth Depth of 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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?>
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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 if ( 0 != $args['avatar_size'] ) echo get_avatar( $comment, $args['avatar_size'] ); ?>
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<?php printf( __( '%s <span class="says">says:</span>' ), sprintf( '<b class="fn">%s</b>', get_comment_author_link( $comment ) ) ); ?>
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</div><!-- .comment-author -->
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<div class="comment-metadata">
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<a href="<?php echo esc_url( get_comment_link( $comment, $args ) ); ?>">
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<time datetime="<?php comment_time( 'c' ); ?>">
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<?php
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/* translators: 1: comment date, 2: comment time */
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printf( __( '%1$s at %2$s' ), get_comment_date( '', $comment ), get_comment_time() );
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?>
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</time>
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</a>
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<?php edit_comment_link( __( 'Edit' ), '<span class="edit-link">', '</span>' ); ?>
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</div><!-- .comment-metadata -->
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<?php if ( '0' == $comment->comment_approved ) : ?>
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<p class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.' ); ?></p>
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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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comment_reply_link( array_merge( $args, 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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</article><!-- .comment-body -->
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<?php
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}
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}
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