WordPress/wp-includes/comment-template.php

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<?php
/**
* Comment template functions
*
* These functions are meant to live inside of the WordPress loop.
*
* @package WordPress
* @subpackage Template
*/
/**
* Retrieve the author of the current comment.
*
* If the comment has an empty comment_author field, then 'Anonymous' person is
* assumed.
*
* @since 1.5.0
* @uses apply_filters() Calls 'get_comment_author' hook on the comment author
*
* @return string The comment author
*/
function get_comment_author() {
global $comment;
if ( empty($comment->comment_author) )
$author = __('Anonymous');
else
$author = $comment->comment_author;
return apply_filters('get_comment_author', $author);
}
/**
* Displays the author of the current comment.
*
* @since 0.71
* @uses apply_filters() Calls 'comment_author' on comment author before displaying
*/
function comment_author() {
$author = apply_filters('comment_author', get_comment_author() );
echo $author;
}
/**
* Retrieve the email of the author of the current comment.
*
* @since 1.5.0
* @uses apply_filters() Calls the 'get_comment_author_email' hook on the comment author email
* @uses $comment
*
* @return string The current comment author's email
*/
function get_comment_author_email() {
global $comment;
return apply_filters('get_comment_author_email', $comment->comment_author_email);
}
/**
* Display the email of the author of the current global $comment.
*
* Care should be taken to protect the email address and assure that email
* harvesters do not capture your commentors' email address. Most assume that
* their email address will not appear in raw form on the blog. Doing so will
* enable anyone, including those that people don't want to get the email
* address and use it for their own means good and bad.
*
* @since 0.71
* @uses apply_filters() Calls 'author_email' hook on the author email
*/
function comment_author_email() {
echo apply_filters('author_email', get_comment_author_email() );
}
/**
* Display the html email link to the author of the current comment.
*
* Care should be taken to protect the email address and assure that email
* harvesters do not capture your commentors' email address. Most assume that
* their email address will not appear in raw form on the blog. Doing so will
* enable anyone, including those that people don't want to get the email
* address and use it for their own means good and bad.
*
* @since 0.71
* @uses apply_filters() Calls 'comment_email' hook for the display of the comment author's email
* @global object $comment The current Comment row object
*
* @param string $linktext The text to display instead of the comment author's email address
* @param string $before The text or HTML to display before the email link.
* @param string $after The text or HTML to display after the email link.
*/
function comment_author_email_link($linktext='', $before='', $after='') {
global $comment;
$email = apply_filters('comment_email', $comment->comment_author_email);
if ((!empty($email)) && ($email != '@')) {
$display = ($linktext != '') ? $linktext : $email;
echo $before;
echo "<a href='mailto:$email'>$display</a>";
echo $after;
}
}
/**
* Retrieve the html link to the url of the author of the current comment.
*
* @since 1.5.0
* @uses apply_filters() Calls 'get_comment_author_link' hook on the complete link HTML or author
*
* @return string Comment Author name or HTML link for author's URL
*/
function get_comment_author_link() {
/** @todo Only call these functions when they are needed. Include in if... else blocks */
$url = get_comment_author_url();
$author = get_comment_author();
if ( empty( $url ) || 'http://' == $url )
$return = $author;
else
$return = "<a href='$url' rel='external nofollow'>$author</a>";
return apply_filters('get_comment_author_link', $return);
}
/**
* Display the html link to the url of the author of the current comment.
*
* @since 0.71
* @see get_comment_author_link() Echos result
*/
function comment_author_link() {
echo get_comment_author_link();
}
/**
* Retrieve the IP address of the author of the current comment.
*
* @since 1.5.0
* @uses $comment
* @uses apply_filters()
*
* @return unknown
*/
function get_comment_author_IP() {
global $comment;
return apply_filters('get_comment_author_IP', $comment->comment_author_IP);
}
/**
* Display the IP address of the author of the current comment.
*
* @since 0.71
* @see get_comment_author_IP() Echos Result
*/
function comment_author_IP() {
echo get_comment_author_IP();
}
/**
* Retrieve the url of the author of the current comment.
*
* @since 1.5.0
* @uses apply_filters() Calls 'get_comment_author_url' hook on the comment author's URL
*
* @return string
*/
function get_comment_author_url() {
global $comment;
return apply_filters('get_comment_author_url', $comment->comment_author_url);
}
/**
* Display the url of the author of the current comment.
*
* @since 0.71
* @uses apply_filters()
* @uses get_comment_author_url() Retrieves the comment author's URL
*/
function comment_author_url() {
echo apply_filters('comment_url', get_comment_author_url());
}
/**
* Retrieves the HTML link of the url of the author of the current comment.
*
* $linktext parameter is only used if the URL does not exist for the comment
* author. If the URL does exist then the URL will be used and the $linktext
* will be ignored.
*
* Encapsulate the HTML link between the $before and $after. So it will appear
* in the order of $before, link, and finally $after.
*
* @since 1.5.0
* @uses apply_filters() Calls the 'get_comment_author_url_link' on the complete HTML before returning.
*
* @param string $linktext The text to display instead of the comment author's email address
* @param string $before The text or HTML to display before the email link.
* @param string $after The text or HTML to display after the email link.
* @return string The HTML link between the $before and $after parameters
*/
function get_comment_author_url_link( $linktext = '', $before = '', $after = '' ) {
$url = get_comment_author_url();
$display = ($linktext != '') ? $linktext : $url;
$display = str_replace( 'http://www.', '', $display );
$display = str_replace( 'http://', '', $display );
if ( '/' == substr($display, -1) )
$display = substr($display, 0, -1);
$return = "$before<a href='$url' rel='external'>$display</a>$after";
return apply_filters('get_comment_author_url_link', $return);
}
/**
* Displays the HTML link of the url of the author of the current comment.
*
* @since 0.71
* @see get_comment_author_url_link() Echos result
*
* @param string $linktext The text to display instead of the comment author's email address
* @param string $before The text or HTML to display before the email link.
* @param string $after The text or HTML to display after the email link.
*/
function comment_author_url_link( $linktext = '', $before = '', $after = '' ) {
echo get_comment_author_url_link( $linktext, $before, $after );
}
/**
* Generates semantic classes for each comment element
*
* @since 2.7.0
*
* @param string|array $class One or more classes to add to the class list
* @param int $comment_id An optional comment ID
* @param int $post_id An optional post ID
*/
function comment_class( $class = '', $comment_id = null, $post_id = null, $echo = true ) {
// Separates classes with a single space, collates classes for comment DIV
$class = 'class="' . join( ' ', get_comment_class( $class, $comment_id, $post_id ) ) . '"';
if ( $echo)
echo $class;
else
return $class;
}
/**
* Returns the classes for the comment div as an array
*
* @since 2.7.0
*
* @param string|array $class One or more classes to add to the class list
* @param int $comment_id An optional comment ID
* @param int $post_id An optional post ID
* @return array Array of classes
*/
function get_comment_class( $class = '', $comment_id = null, $post_id = null ) {
global $comment_alt, $comment_depth, $comment_thread_alt;
$comment = get_comment($comment_id);
$classes = array();
// Get the comment type (comment, trackback),
$classes[] = $comment->comment_type;
// If the comment author has an id (registered), then print the log in name
if ( $comment->user_id > 0 && $user = get_userdata($comment->user_id) ) {
// For all registered users, 'byuser'
$classes[] = 'byuser comment-author-' . $user->user_nicename;
// For comment authors who are the author of the post
if ( $post = get_post($post_id) ) {
if ( $comment->user_id === $post->post_author )
$classes[] = 'bypostauthor';
}
}
if ( empty($comment_alt) )
$comment_alt = 0;
if ( empty($comment_depth) )
$comment_depth = 1;
if ( empty($comment_thread_alt) )
$comment_thread_alt = 0;
if ( $comment_alt % 2 ) {
$classes[] = 'odd';
$classes[] = 'alt';
} else {
$classes[] = 'even';
}
$comment_alt++;
// Alt for top-level comments
if ( 1 == $comment_depth ) {
if ( $comment_thread_alt % 2 ) {
$classes[] = 'thread-odd';
$classes[] = 'thread-alt';
} else {
$classes[] = 'thread-even';
}
$comment_thread_alt++;
}
$classes[] = "depth-$comment_depth";
if ( !empty($class) ) {
if ( !is_array( $class ) )
$class = preg_split('#\s+#', $class);
$classes = array_merge($classes, $class);
}
return apply_filters('comment_class', $classes, $class, $comment_id, $post_id);
}
/**
* Retrieve the comment date of the current comment.
*
* @since 1.5.0
* @uses apply_filters() Calls 'get_comment_date' hook with the formated date and the $d parameter respectively
* @uses $comment
*
* @param string $d The format of the date (defaults to user's config)
* @return string The comment's date
*/
function get_comment_date( $d = '' ) {
global $comment;
if ( '' == $d )
$date = mysql2date( get_option('date_format'), $comment->comment_date);
else
$date = mysql2date($d, $comment->comment_date);
return apply_filters('get_comment_date', $date, $d);
}
/**
* Display the comment date of the current comment.
*
* @since 0.71
*
* @param string $d The format of the date (defaults to user's config)
*/
function comment_date( $d = '' ) {
echo get_comment_date( $d );
}
/**
* Retrieve the excerpt of the current comment.
*
* Will cut each word and only output the first 20 words with '...' at the end.
* If the word count is less than 20, then no truncating is done and no '...'
* will appear.
*
* @since 1.5.0
* @uses $comment
* @uses apply_filters() Calls 'get_comment_excerpt' on truncated comment
*
* @return string The maybe truncated comment with 20 words or less
*/
function get_comment_excerpt() {
global $comment;
$comment_text = strip_tags($comment->comment_content);
$blah = explode(' ', $comment_text);
if (count($blah) > 20) {
$k = 20;
$use_dotdotdot = 1;
} else {
$k = count($blah);
$use_dotdotdot = 0;
}
$excerpt = '';
for ($i=0; $i<$k; $i++) {
$excerpt .= $blah[$i] . ' ';
}
$excerpt .= ($use_dotdotdot) ? '...' : '';
return apply_filters('get_comment_excerpt', $excerpt);
}
/**
* Display the excerpt of the current comment.
*
* @since 1.2.0
* @uses apply_filters() Calls 'comment_excerpt' hook before displaying excerpt
*/
function comment_excerpt() {
echo apply_filters('comment_excerpt', get_comment_excerpt() );
}
/**
* Retrieve the comment id of the current comment.
*
* @since 1.5.0
* @uses $comment
* @uses apply_filters() Calls the 'get_comment_ID' hook for the comment ID
*
* @return int The comment ID
*/
function get_comment_ID() {
global $comment;
return apply_filters('get_comment_ID', $comment->comment_ID);
}
/**
* Displays the comment id of the current comment.
*
* @since 0.71
* @see get_comment_ID() Echos Result
*/
function comment_ID() {
echo get_comment_ID();
}
/**
* Retrieve the link to the current comment.
*
* @since 1.5.0
* @uses $comment
*
* @param object|string|int $comment Comment to retrieve.
* @return string The permalink to the current comment
*/
function get_comment_link($comment = null) {
$comment = get_comment($comment);
return get_permalink( $comment->comment_post_ID ) . '#comment-' . $comment->comment_ID;
}
/**
* Retrieves the link to the current post comments.
*
* @since 1.5.0
*
* @return string The link to the comments
*/
function get_comments_link() {
return get_permalink() . '#comments';
}
/**
* Displays the link to the current post comments.
*
* @since 0.71
*
* @param string $deprecated Not Used
* @param bool $deprecated Not Used
*/
function comments_link( $deprecated = '', $deprecated = '' ) {
echo get_comments_link();
}
/**
* Retrieve the amount of comments a post has.
*
* @since 1.5.0
* @uses apply_filters() Calls the 'get_comments_number' hook on the number of comments
*
* @param int $post_id The Post ID
* @return int The number of comments a post has
*/
function get_comments_number( $post_id = 0 ) {
global $id;
$post_id = (int) $post_id;
if ( !$post_id )
$post_id = (int) $id;
$post = get_post($post_id);
if ( ! isset($post->comment_count) )
$count = 0;
else
$count = $post->comment_count;
return apply_filters('get_comments_number', $count);
}
/**
* Display the language string for the number of comments the current post has.
*
* @since 0.71
* @uses $id
* @uses apply_filters() Calls the 'comments_number' hook on the output and number of comments respectively.
*
* @param string $zero Text for no comments
* @param string $one Text for one comment
* @param string $more Text for more than one comment
* @param string $deprecated Not used.
*/
function comments_number( $zero = false, $one = false, $more = false, $deprecated = '' ) {
global $id;
$number = get_comments_number($id);
if ( $number > 1 )
$output = str_replace('%', number_format_i18n($number), ( false === $more ) ? __('% Comments') : $more);
elseif ( $number == 0 )
$output = ( false === $zero ) ? __('No Comments') : $zero;
else // must be one
$output = ( false === $one ) ? __('1 Comment') : $one;
echo apply_filters('comments_number', $output, $number);
}
/**
* Retrieve the text of the current comment.
*
* @since 1.5.0
* @uses $comment
*
* @return string The comment content
*/
function get_comment_text() {
global $comment;
return apply_filters('get_comment_text', $comment->comment_content);
}
/**
* Displays the text of the current comment.
*
* @since 0.71
* @uses apply_filters() Passes the comment content through the 'comment_text' hook before display
* @uses get_comment_text() Gets the comment content
*/
function comment_text() {
echo apply_filters('comment_text', get_comment_text() );
}
/**
* Retrieve the comment time of the current comment.
*
* @since 1.5.0
* @uses $comment
* @uses apply_filter() Calls 'get_comment_time' hook with the formatted time, the $d parameter, and $gmt parameter passed.
*
* @param string $d Optional. The format of the time (defaults to user's config)
* @param bool $gmt Whether to use the GMT date
* @return string The formatted time
*/
function get_comment_time( $d = '', $gmt = false ) {
global $comment;
$comment_date = $gmt? $comment->comment_date_gmt : $comment->comment_date;
if ( '' == $d )
$date = mysql2date(get_option('time_format'), $comment_date);
else
$date = mysql2date($d, $comment_date);
return apply_filters('get_comment_time', $date, $d, $gmt);
}
/**
* Display the comment time of the current comment.
*
* @since 0.71
*
* @param string $d Optional. The format of the time (defaults to user's config)
*/
function comment_time( $d = '' ) {
echo get_comment_time($d);
}
/**
* Retrieve the comment type of the current comment.
*
* @since 1.5.0
* @uses $comment
* @uses apply_filters() Calls the 'get_comment_type' hook on the comment type
*
* @return string The comment type
*/
function get_comment_type() {
global $comment;
if ( '' == $comment->comment_type )
$comment->comment_type = 'comment';
return apply_filters('get_comment_type', $comment->comment_type);
}
/**
* Display the comment type of the current comment.
*
* @since 0.71
*
* @param string $commenttxt The string to display for comment type
* @param string $trackbacktxt The string to display for trackback type
* @param string $pingbacktxt The string to display for pingback type
*/
function comment_type($commenttxt = 'Comment', $trackbacktxt = 'Trackback', $pingbacktxt = 'Pingback') {
$type = get_comment_type();
switch( $type ) {
case 'trackback' :
echo $trackbacktxt;
break;
case 'pingback' :
echo $pingbacktxt;
break;
default :
echo $commenttxt;
}
}
/**
* Retrieve The current post's trackback URL.
*
* There is a check to see if permalink's have been enabled and if so, will
* retrieve the pretty path. If permalinks weren't enabled, the ID of the
* current post is used and appended to the correct page to go to.
*
* @since 1.5.0
* @uses apply_filters() Calls 'trackback_url' on the resulting trackback URL
* @uses $id
*
* @return string The trackback URL after being filtered
*/
function get_trackback_url() {
global $id;
if ( '' != get_option('permalink_structure') ) {
$tb_url = trailingslashit(get_permalink()) . user_trailingslashit('trackback', 'single_trackback');
} else {
$tb_url = get_option('siteurl') . '/wp-trackback.php?p=' . $id;
}
return apply_filters('trackback_url', $tb_url);
}
/**
* Displays the current post's trackback URL.
*
* @since 0.71
* @uses get_trackback_url() Gets the trackback url for the current post
*
* @param bool $deprecated Remove backwards compat in 2.5
* @return void|string Should only be used to echo the trackback URL, use get_trackback_url() for the result instead.
*/
function trackback_url($deprecated = true) {
if ($deprecated) echo get_trackback_url();
else return get_trackback_url();
}
/**
* Generates and displays the RDF for the trackback information of current post.
*
* @since 0.71
*
* @param int $deprecated Not used (Was $timezone = 0)
*/
function trackback_rdf($deprecated = '') {
if (stripos($_SERVER['HTTP_USER_AGENT'], 'W3C_Validator') === false) {
echo '<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/">
<rdf:Description rdf:about="';
the_permalink();
echo '"'."\n";
echo ' dc:identifier="';
the_permalink();
echo '"'."\n";
echo ' dc:title="'.str_replace('--', '&#x2d;&#x2d;', wptexturize(strip_tags(get_the_title()))).'"'."\n";
echo ' trackback:ping="'.get_trackback_url().'"'." />\n";
echo '</rdf:RDF>';
}
}
/**
* Whether the current post is open for comments.
*
* @since 1.5.0
* @uses $post
*
* @param int $post_id An optional post ID to check instead of the current post.
* @return bool True if the comments are open
*/
function comments_open( $post_id=NULL ) {
$_post = get_post($post_id);
$open = ( 'open' == $_post->comment_status );
return apply_filters( 'comments_open', $open, $post_id );
}
/**
* Whether the current post is open for pings.
*
* @since 1.5.0
* @uses $post
*
* @param int $post_id An optional post ID to check instead of the current post.
* @return bool True if pings are accepted
*/
function pings_open( $post_id = NULL ) {
$_post = get_post($post_id);
$open = ( 'open' == $_post->ping_status );
return apply_filters( 'pings_open', $open, $post_id );
}
/**
* Displays form token for unfiltered comments.
*
* Will only display nonce token if the current user has permissions for
* unfiltered html. Won't display the token for other users.
*
* The function was backported to 2.0.10 and was added to versions 2.1.3 and
* above. Does not exist in versions prior to 2.0.10 in the 2.0 branch and in
* the 2.1 branch, prior to 2.1.3. Technically added in 2.2.0.
*
* Backported to 2.0.10.
*
* @since 2.1.3
* @uses $post Gets the ID of the current post for the token
*/
function wp_comment_form_unfiltered_html_nonce() {
global $post;
if ( current_user_can('unfiltered_html') )
wp_nonce_field('unfiltered-html-comment_' . $post->ID, '_wp_unfiltered_html_comment', false);
}
/**
* Loads the comment template specified in $file.
*
* Will not display the comments template if not on single post or page, or if
* the post does not have comments.
*
* Uses the WordPress database object to query for the comments. The comments
* are passed through the 'comments_array' filter hook with the list of comments
* and the post ID respectively.
*
* The $file path is passed through a filter hook called, 'comments_template'
* which includes the TEMPLATEPATH and $file combined. Tries the $filtered path
* first and if it fails it will require the default comment themplate from the
* default theme. If either does not exist, then the WordPress process will be
* halted. It is advised for that reason, that the default theme is not deleted.
*
* @since 1.5.0
* @global array $comment List of comment objects for the current post
* @uses $wpdb
* @uses $id
* @uses $post
* @uses $withcomments Will not try to get the comments if the post has none.
*
* @param string $file Optional, default '/comments.php'. The file to load
* @return null Returns null if no comments appear
*/
function comments_template( $file = '/comments.php' ) {
global $wp_query, $withcomments, $post, $wpdb, $id, $comment, $user_login, $user_ID, $user_identity;
if ( ! (is_single() || is_page() || $withcomments) )
return;
$req = get_option('require_name_email');
$commenter = wp_get_current_commenter();
extract($commenter, EXTR_SKIP);
/** @todo Use API instead of SELECTs. */
if ( $user_ID) {
$comments = $wpdb->get_results($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND (comment_approved = '1' OR ( user_id = %d AND comment_approved = '0' ) ) ORDER BY comment_date", $post->ID, $user_ID));
} else if ( empty($comment_author) ) {
$comments = $wpdb->get_results($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1' ORDER BY comment_date", $post->ID));
} else {
$comments = $wpdb->get_results($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND ( comment_approved = '1' OR ( comment_author = %s AND comment_author_email = %s AND comment_approved = '0' ) ) ORDER BY comment_date", $post->ID, $comment_author, $comment_author_email));
}
// keep $comments for legacy's sake (remember $table*? ;) )
$wp_query->comments = apply_filters( 'comments_array', $comments, $post->ID );
$comments = &$wp_query->comments;
$wp_query->comment_count = count($wp_query->comments);
update_comment_cache($wp_query->comments);
define('COMMENTS_TEMPLATE', true);
$include = apply_filters('comments_template', STYLESHEETPATH . $file );
if ( file_exists( $include ) )
require( $include );
elseif ( file_exists( TEMPLATEPATH . $file ) )
require( TEMPLATEPATH . $file );
else
require( get_theme_root() . '/default/comments.php');
}
/**
* Displays the JS popup script to show a comment.
*
* If the $file parameter is empty, then the home page is assumed. The defaults
* for the window are 400px by 400px.
*
* For the comment link popup to work, this function has to be called or the
* normal comment link will be assumed.
*
* @since 0.71
* @global string $wpcommentspopupfile The URL to use for the popup window
* @global int $wpcommentsjavascript Whether to use JavaScript or not. Set when function is called
*
* @param int $width Optional. The width of the popup window
* @param int $height Optional. The height of the popup window
* @param string $file Optional. Sets the location of the popup window
*/
function comments_popup_script($width=400, $height=400, $file='') {
global $wpcommentspopupfile, $wpcommentsjavascript;
if (empty ($file)) {
$wpcommentspopupfile = ''; // Use the index.
} else {
$wpcommentspopupfile = $file;
}
$wpcommentsjavascript = 1;
$javascript = "<script type='text/javascript'>\nfunction wpopen (macagna) {\n window.open(macagna, '_blank', 'width=$width,height=$height,scrollbars=yes,status=yes');\n}\n</script>\n";
echo $javascript;
}
/**
* Displays the link to the comments popup window for the current post ID.
*
* Is not meant to be displayed on single posts and pages. Should be used on the
* lists of posts
*
* @since 0.71
* @uses $id
* @uses $wpcommentspopupfile
* @uses $wpcommentsjavascript
* @uses $post
*
* @param string $zero The string to display when no comments
* @param string $one The string to display when only one comment is available
* @param string $more The string to display when there are more than one comment
* @param string $css_class The CSS class to use for comments
* @param string $none The string to display when comments have been turned off
* @return null Returns null on single posts and pages.
*/
function comments_popup_link( $zero = 'No Comments', $one = '1 Comment', $more = '% Comments', $css_class = '', $none = 'Comments Off' ) {
global $id, $wpcommentspopupfile, $wpcommentsjavascript, $post;
if ( is_single() || is_page() )
return;
$number = get_comments_number( $id );
if ( 0 == $number && 'closed' == $post->comment_status && 'closed' == $post->ping_status ) {
echo '<span' . ((!empty($css_class)) ? ' class="' . $css_class . '"' : '') . '>' . $none . '</span>';
return;
}
if ( post_password_required() ) {
echo __('Enter your password to view comments');
return;
}
echo '<a href="';
if ( $wpcommentsjavascript ) {
if ( empty( $wpcommentspopupfile ) )
$home = get_option('home');
else
$home = get_option('siteurl');
echo $home . '/' . $wpcommentspopupfile . '?comments_popup=' . $id;
echo '" onclick="wpopen(this.href); return false"';
} else { // if comments_popup_script() is not in the template, display simple comment link
if ( 0 == $number )
echo get_permalink() . '#respond';
else
comments_link();
echo '"';
}
if ( !empty( $css_class ) ) {
echo ' class="'.$css_class.'" ';
}
$title = attribute_escape( get_the_title() );
echo apply_filters( 'comments_popup_link_attributes', '' );
echo ' title="' . sprintf( __('Comment on %s'), $title ) . '">';
comments_number( $zero, $one, $more, $number );
echo '</a>';
}
/**
* Retrieve HTML content for reply to comment link.
*
* The default arguments that can be override are 'add_below', 'respond_id',
* 'reply_text', 'login_text', and 'depth'. The 'login_text' argument will be
* used, if the user must log in or register first before posting a comment. The
* 'reply_text' will be used, if they can post a reply. The 'add_below' and
* 'respond_id' arguments are for the JavaScript moveAddCommentForm() function
* parameters.
*
* @since 2.7.0
*
* @param array $args Optional. Override default options.
* @param int $comment Optional. Comment being replied to.
* @param int $post Optional. Post that the comment is going to be displayed on.
* @return string|bool|null Link to show comment form, if successful. False, if comments are closed.
*/
function comment_reply_link($args = array(), $comment = null, $post = null) {
global $user_ID;
$defaults = array('add_below' => 'comment', 'respond_id' => 'respond', 'reply_text' => __('Reply'),
'login_text' => __('Log in to Reply'), 'depth' => 0);
$args = wp_parse_args($args, $defaults);
if ( 0 == $args['depth'] || $args['max_depth'] <= $args['depth'] )
return;
extract($args, EXTR_SKIP);
$comment = get_comment($comment);
$post = get_post($post);
if ( 'open' != $post->comment_status )
return false;
$link = '';
if ( get_option('comment_registration') && !$user_ID )
$link = '<a href="' . site_url('wp-login.php?redirect_to=' . get_permalink()) . '">' . $login_text . '</a>';
else
$link = "<a href='#' onclick='moveAddCommentForm(\"$add_below-$comment->comment_ID\", $comment->comment_ID, \"$respond_id\"); return false;'>$reply_text</a>";
return $link;
}
/**
* Display HTML content for cancel comment reply link.
*
* @since 2.7.0
*
* @param string $text Optional. Text to display for cancel reply.
* @param string $respond_id Optional. HTML ID attribute for JS cancelCommentReply function.
* @param string $respond_root Optional. Second parameter for JS cancelCommentReply function.
*/
function cancel_comment_reply_link($text = '', $respond_id = 'respond', $respond_root = 'content') {
if ( empty($text) )
$text = __('Click here to cancel reply.');
echo '<a href="#" onclick="cancelCommentReply(\'' . $respond_id . '\', \'' . $respond_root . '\'); return false;">' . $text . '</a>';
}
/**
* HTML comment list class.
*
* @package WordPress
* @uses Walker
* @since unknown
*/
class Walker_Comment extends Walker {
/**
* @see Walker::$tree_type
* @since unknown
* @var string
*/
var $tree_type = 'comment';
/**
* @see Walker::$db_fields
* @since unknown
* @var array
*/
var $db_fields = array ('parent' => 'comment_parent', 'id' => 'comment_ID');
/**
* @see Walker::start_lvl()
* @since unknown
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of comment.
* @param array $args Uses 'style' argument for type of HTML list.
*/
function start_lvl(&$output, $depth, $args) {
$GLOBALS['comment_depth'] = $depth + 1;
switch ( $args['style'] ) {
case 'div':
break;
case 'ol':
echo "<ol class='children'>\n";
break;
default:
case 'ul':
echo "<ul class='children'>\n";
break;
}
}
/**
* @see Walker::end_lvl()
* @since unknown
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of comment.
* @param array $args Will only append content if style argument value is 'ol' or 'ul'.
*/
function end_lvl(&$output, $depth, $args) {
$GLOBALS['comment_depth'] = $depth + 1;
switch ( $args['style'] ) {
case 'div':
break;
case 'ol':
echo "</ol>\n";
break;
default:
case 'ul':
echo "</ul>\n";
break;
}
}
/**
* @see Walker::start_el()
* @since unknown
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $comment Comment data object.
* @param int $depth Depth of comment in reference to parents.
* @param array $args
*/
function start_el(&$output, $comment, $depth, $args) {
$depth++;
$GLOBALS['comment_depth'] = $depth;
if ( !empty($args['callback']) ) {
call_user_func($args['callback'], $comment, $args, $depth);
return;
}
$GLOBALS['comment'] = $comment;
extract($args, EXTR_SKIP);
if ( 'div' == $args['style'] ) {
$tag = 'div';
$add_below = 'comment';
} else {
$tag = 'li';
$add_below = 'div-comment';
}
?>
<<?php echo $tag ?> <?php comment_class() ?> id="comment-<?php comment_ID() ?>">
<?php if ( 'ul' == $args['style'] ) : ?>
<div id="div-comment-<?php comment_ID() ?>">
<?php endif; ?>
<div class="comment-author vcard">
<?php echo get_avatar( $comment, 32 ) ?>
<?php printf(__('<cite>%s</cite> Says:'), get_comment_author_link()) ?>
</div>
<?php if ($comment->comment_approved == '0') : ?>
<em><?php _e('Your comment is awaiting moderation.') ?></em>
<br />
<?php endif; ?>
<div class="comment-meta commentmetadata"><a href="#comment-<?php comment_ID() ?>" title=""><?php printf(__('%1$s at %2$s'), get_comment_date('F jS, Y'), get_comment_time()) ?></a><?php edit_comment_link('edit','&nbsp;&nbsp;','') ?></div>
<?php echo apply_filters('comment_text', get_comment_text()) ?>
<div class='reply'>
<?php echo comment_reply_link(array('add_below' => $add_below, 'depth' => $depth, 'max_depth' => $args['depth'])) ?>
<?php if ( 'ul' == $args['style'] ) : ?>
</div>
<?php endif; ?>
</div>
<?php
}
/**
* @see Walker::end_el()
* @since unknown
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $comment
* @param int $depth Depth of comment.
* @param array $args
*/
function end_el(&$output, $comment, $depth, $args) {
if ( !empty($args['end-callback']) ) {
call_user_func($args['end-callback'], $comment, $args, $depth);
return;
}
if ( 'div' == $args['style'] )
echo "</div>\n";
else
echo "</li>\n";
}
}
/**
* List comments
*
* Used in the comments.php template to list comments for a particular post
*
* @since 2.7.0
* @uses Walker_Comment
*
* @param $args string|array Formatting options
* @param $comments array Optional array of comment objects. Defaults to $wp_query->comments
*/
function wp_list_comments($args = array(), $comments = null ) {
global $wp_query, $comment_alt, $comment_depth, $comment_thread_alt;
$comment_alt = $comment_thread_alt = 0;
$comment_depth = 1;
$defaults = array('walker' => null, 'depth' => '', 'style' => 'ul', 'callback' => null, 'end-callback' => null, 'type' => 'all',
'page' => get_query_var('cpage'), 'per_page' => '');
$r = wp_parse_args( $args, $defaults );
if ( '' === $r['per_page'] && get_option('page_comments') )
$r['per_page'] = get_query_var('comments_per_page');
if ( empty($r['per_page']) ) {
$r['per_page'] = 0;
$r['page'] = 0;
} else {
$r['page'] = intval($r['page']);
if ( empty($r['page']) )
$r['page'] = 1;
}
if ( '' === $r['depth'] ) {
if ( get_option('thread_comments') )
$r['depth'] = get_option('thread_comments_depth');
else
$r['depth'] = -1;
}
extract( $r, EXTR_SKIP );
if ( empty($walker) )
$walker = new Walker_Comment;
if ( empty($comments) ) {
if ( empty($wp_query->comments) )
return;
if ( 'all' != $type ) {
if ( empty($wp_query->comments_by_type) )
$wp_query->comments_by_type = &separate_comments($wp_query->comments);
if ( empty($wp_query->comments_by_type[$type]) )
return;
$walker->paged_walk($wp_query->comments_by_type[$type], $depth, $page, $per_page, $r);
$wp_query->max_num_comment_pages = $walker->max_pages;
return;
}
$walker->paged_walk($wp_query->comments, $depth, $page, $per_page, $r);
$wp_query->max_num_comment_pages = $walker->max_pages;
} else {
if ( empty($comments) )
return;
if ( 'all' != $type ) {
$comments_by_type = &separate_comments($comments);
if ( empty($comments_by_type[$type]) )
return;
$walker->paged_walk($comments_by_type[$type], $depth, $page, $per_page, $r);
$wp_query->max_num_comment_pages = $walker->max_pages;
return;
}
$walker->paged_walk($comments, $depth, $page, $per_page, $r);
$wp_query->max_num_comment_pages = $walker->max_pages;
}
}
?>