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1 <?php 2 /** 3 * Comment API: Walker_Comment class 4 * 5 * @package WordPress 6 * @subpackage Comments 7 * @since 4.4.0 8 */ 9 10 /** 11 * Core walker class used to create an HTML list of comments. 12 * 13 * @since 2.7.0 14 * 15 * @see Walker 16 */ 17 class Walker_Comment extends Walker { 18 19 /** 20 * What the class handles. 21 * 22 * @since 2.7.0 23 * @var string 24 * 25 * @see Walker::$tree_type 26 */ 27 public $tree_type = 'comment'; 28 29 /** 30 * Database fields to use. 31 * 32 * @since 2.7.0 33 * @var string[] 34 * 35 * @see Walker::$db_fields 36 * @todo Decouple this 37 */ 38 public $db_fields = array( 39 'parent' => 'comment_parent', 40 'id' => 'comment_ID', 41 ); 42 43 /** 44 * Starts the list before the elements are added. 45 * 46 * @since 2.7.0 47 * 48 * @see Walker::start_lvl() 49 * @global int $comment_depth 50 * 51 * @param string $output Used to append additional content (passed by reference). 52 * @param int $depth Optional. Depth of the current comment. Default 0. 53 * @param array $args Optional. Uses 'style' argument for type of HTML list. Default empty array. 54 */ 55 public function start_lvl( &$output, $depth = 0, $args = array() ) { 56 $GLOBALS['comment_depth'] = $depth + 1; 57 58 switch ( $args['style'] ) { 59 case 'div': 60 break; 61 case 'ol': 62 $output .= '<ol class="children">' . "\n"; 63 break; 64 case 'ul': 65 default: 66 $output .= '<ul class="children">' . "\n"; 67 break; 68 } 69 } 70 71 /** 72 * Ends the list of items after the elements are added. 73 * 74 * @since 2.7.0 75 * 76 * @see Walker::end_lvl() 77 * @global int $comment_depth 78 * 79 * @param string $output Used to append additional content (passed by reference). 80 * @param int $depth Optional. Depth of the current comment. Default 0. 81 * @param array $args Optional. Will only append content if style argument value is 'ol' or 'ul'. 82 * Default empty array. 83 */ 84 public function end_lvl( &$output, $depth = 0, $args = array() ) { 85 $GLOBALS['comment_depth'] = $depth + 1; 86 87 switch ( $args['style'] ) { 88 case 'div': 89 break; 90 case 'ol': 91 $output .= "</ol><!-- .children -->\n"; 92 break; 93 case 'ul': 94 default: 95 $output .= "</ul><!-- .children -->\n"; 96 break; 97 } 98 } 99 100 /** 101 * Traverses elements to create list from elements. 102 * 103 * This function is designed to enhance Walker::display_element() to 104 * display children of higher nesting levels than selected inline on 105 * the highest depth level displayed. This prevents them being orphaned 106 * at the end of the comment list. 107 * 108 * Example: max_depth = 2, with 5 levels of nested content. 109 * 1 110 * 1.1 111 * 1.1.1 112 * 1.1.1.1 113 * 1.1.1.1.1 114 * 1.1.2 115 * 1.1.2.1 116 * 2 117 * 2.2 118 * 119 * @since 2.7.0 120 * 121 * @see Walker::display_element() 122 * @see wp_list_comments() 123 * 124 * @param WP_Comment $element Comment data object. 125 * @param array $children_elements List of elements to continue traversing. Passed by reference. 126 * @param int $max_depth Max depth to traverse. 127 * @param int $depth Depth of the current element. 128 * @param array $args An array of arguments. 129 * @param string $output Used to append additional content. Passed by reference. 130 */ 131 public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) { 132 if ( ! $element ) { 133 return; 134 } 135 136 $id_field = $this->db_fields['id']; 137 $id = $element->$id_field; 138 139 parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output ); 140 141 /* 142 * If at the max depth, and the current element still has children, loop over those 143 * and display them at this level. This is to prevent them being orphaned to the end 144 * of the list. 145 */ 146 if ( $max_depth <= $depth + 1 && isset( $children_elements[ $id ] ) ) { 147 foreach ( $children_elements[ $id ] as $child ) { 148 $this->display_element( $child, $children_elements, $max_depth, $depth, $args, $output ); 149 } 150 151 unset( $children_elements[ $id ] ); 152 } 153 } 154 155 /** 156 * Starts the element output. 157 * 158 * @since 2.7.0 159 * @since 5.9.0 Renamed `$comment` to `$data_object` and `$id` to `$current_object_id` 160 * to match parent class for PHP 8 named parameter support. 161 * 162 * @see Walker::start_el() 163 * @see wp_list_comments() 164 * @global int $comment_depth 165 * @global WP_Comment $comment Global comment object. 166 * 167 * @param string $output Used to append additional content. Passed by reference. 168 * @param WP_Comment $data_object Comment data object. 169 * @param int $depth Optional. Depth of the current comment in reference to parents. Default 0. 170 * @param array $args Optional. An array of arguments. Default empty array. 171 * @param int $current_object_id Optional. ID of the current comment. Default 0. 172 */ 173 public function start_el( &$output, $data_object, $depth = 0, $args = array(), $current_object_id = 0 ) { 174 // Restores the more descriptive, specific name for use within this method. 175 $comment = $data_object; 176 177 ++$depth; 178 $GLOBALS['comment_depth'] = $depth; 179 $GLOBALS['comment'] = $comment; 180 181 if ( ! empty( $args['callback'] ) ) { 182 ob_start(); 183 call_user_func( $args['callback'], $comment, $args, $depth ); 184 $output .= ob_get_clean(); 185 return; 186 } 187 188 if ( 'comment' === $comment->comment_type ) { 189 add_filter( 'comment_text', array( $this, 'filter_comment_text' ), 40, 2 ); 190 } 191 192 if ( ( 'pingback' === $comment->comment_type || 'trackback' === $comment->comment_type ) && $args['short_ping'] ) { 193 ob_start(); 194 $this->ping( $comment, $depth, $args ); 195 $output .= ob_get_clean(); 196 } elseif ( 'html5' === $args['format'] ) { 197 ob_start(); 198 $this->html5_comment( $comment, $depth, $args ); 199 $output .= ob_get_clean(); 200 } else { 201 ob_start(); 202 $this->comment( $comment, $depth, $args ); 203 $output .= ob_get_clean(); 204 } 205 206 if ( 'comment' === $comment->comment_type ) { 207 remove_filter( 'comment_text', array( $this, 'filter_comment_text' ), 40 ); 208 } 209 } 210 211 /** 212 * Ends the element output, if needed. 213 * 214 * @since 2.7.0 215 * @since 5.9.0 Renamed `$comment` to `$data_object` to match parent class for PHP 8 named parameter support. 216 * 217 * @see Walker::end_el() 218 * @see wp_list_comments() 219 * 220 * @param string $output Used to append additional content. Passed by reference. 221 * @param WP_Comment $data_object Comment data object. 222 * @param int $depth Optional. Depth of the current comment. Default 0. 223 * @param array $args Optional. An array of arguments. Default empty array. 224 */ 225 public function end_el( &$output, $data_object, $depth = 0, $args = array() ) { 226 if ( ! empty( $args['end-callback'] ) ) { 227 ob_start(); 228 call_user_func( 229 $args['end-callback'], 230 $data_object, // The current comment object. 231 $args, 232 $depth 233 ); 234 $output .= ob_get_clean(); 235 return; 236 } 237 if ( 'div' === $args['style'] ) { 238 $output .= "</div><!-- #comment-## -->\n"; 239 } else { 240 $output .= "</li><!-- #comment-## -->\n"; 241 } 242 } 243 244 /** 245 * Outputs a pingback comment. 246 * 247 * @since 3.6.0 248 * 249 * @see wp_list_comments() 250 * 251 * @param WP_Comment $comment The comment object. 252 * @param int $depth Depth of the current comment. 253 * @param array $args An array of arguments. 254 */ 255 protected function ping( $comment, $depth, $args ) { 256 $tag = ( 'div' === $args['style'] ) ? 'div' : 'li'; 257 ?> 258 <<?php echo $tag; ?> id="comment-<?php comment_ID(); ?>" <?php comment_class( '', $comment ); ?>> 259 <div class="comment-body"> 260 <?php _e( 'Pingback:' ); ?> <?php comment_author_link( $comment ); ?> <?php edit_comment_link( __( 'Edit' ), '<span class="edit-link">', '</span>' ); ?> 261 </div> 262 <?php 263 } 264 265 /** 266 * Filters the comment text. 267 * 268 * Removes links from the pending comment's text if the commenter did not consent 269 * to the comment cookies. 270 * 271 * @since 5.4.2 272 * 273 * @param string $comment_text Text of the current comment. 274 * @param WP_Comment|null $comment The comment object. Null if not found. 275 * @return string Filtered text of the current comment. 276 */ 277 public function filter_comment_text( $comment_text, $comment ) { 278 $commenter = wp_get_current_commenter(); 279 $show_pending_links = ! empty( $commenter['comment_author'] ); 280 281 if ( $comment && '0' === $comment->comment_approved && ! $show_pending_links ) { 282 $comment_text = wp_kses( $comment_text, array() ); 283 } 284 285 return $comment_text; 286 } 287 288 /** 289 * Outputs a single comment. 290 * 291 * @since 3.6.0 292 * 293 * @see wp_list_comments() 294 * 295 * @param WP_Comment $comment Comment to display. 296 * @param int $depth Depth of the current comment. 297 * @param array $args An array of arguments. 298 */ 299 protected function comment( $comment, $depth, $args ) { 300 if ( 'div' === $args['style'] ) { 301 $tag = 'div'; 302 $add_below = 'comment'; 303 } else { 304 $tag = 'li'; 305 $add_below = 'div-comment'; 306 } 307 308 $commenter = wp_get_current_commenter(); 309 $show_pending_links = isset( $commenter['comment_author'] ) && $commenter['comment_author']; 310 311 if ( $commenter['comment_author_email'] ) { 312 $moderation_note = __( 'Your comment is awaiting moderation.' ); 313 } else { 314 $moderation_note = __( 'Your comment is awaiting moderation. This is a preview; your comment will be visible after it has been approved.' ); 315 } 316 ?> 317 <<?php echo $tag; ?> <?php comment_class( $this->has_children ? 'parent' : '', $comment ); ?> id="comment-<?php comment_ID(); ?>"> 318 <?php if ( 'div' !== $args['style'] ) : ?> 319 <div id="div-comment-<?php comment_ID(); ?>" class="comment-body"> 320 <?php endif; ?> 321 <div class="comment-author vcard"> 322 <?php 323 if ( 0 !== $args['avatar_size'] ) { 324 echo get_avatar( $comment, $args['avatar_size'] ); 325 } 326 ?> 327 <?php 328 $comment_author = get_comment_author_link( $comment ); 329 330 if ( '0' === $comment->comment_approved && ! $show_pending_links ) { 331 $comment_author = get_comment_author( $comment ); 332 } 333 334 printf( 335 /* translators: %s: Comment author link. */ 336 __( '%s <span class="says">says:</span>' ), 337 sprintf( '<cite class="fn">%s</cite>', $comment_author ) 338 ); 339 ?> 340 </div> 341 <?php if ( '0' === $comment->comment_approved ) : ?> 342 <em class="comment-awaiting-moderation"><?php echo $moderation_note; ?></em> 343 <br /> 344 <?php endif; ?> 345 346 <div class="comment-meta commentmetadata"> 347 <?php 348 printf( 349 '<a href="%s">%s</a>', 350 esc_url( get_comment_link( $comment, $args ) ), 351 sprintf( 352 /* translators: 1: Comment date, 2: Comment time. */ 353 __( '%1$s at %2$s' ), 354 get_comment_date( '', $comment ), 355 get_comment_time() 356 ) 357 ); 358 359 edit_comment_link( __( '(Edit)' ), ' ', '' ); 360 ?> 361 </div> 362 363 <?php 364 comment_text( 365 $comment, 366 array_merge( 367 $args, 368 array( 369 'add_below' => $add_below, 370 'depth' => $depth, 371 'max_depth' => $args['max_depth'], 372 ) 373 ) 374 ); 375 ?> 376 377 <?php 378 comment_reply_link( 379 array_merge( 380 $args, 381 array( 382 'add_below' => $add_below, 383 'depth' => $depth, 384 'max_depth' => $args['max_depth'], 385 'before' => '<div class="reply">', 386 'after' => '</div>', 387 ) 388 ) 389 ); 390 ?> 391 392 <?php if ( 'div' !== $args['style'] ) : ?> 393 </div> 394 <?php endif; ?> 395 <?php 396 } 397 398 /** 399 * Outputs a comment in the HTML5 format. 400 * 401 * @since 3.6.0 402 * 403 * @see wp_list_comments() 404 * 405 * @param WP_Comment $comment Comment to display. 406 * @param int $depth Depth of the current comment. 407 * @param array $args An array of arguments. 408 */ 409 protected function html5_comment( $comment, $depth, $args ) { 410 $tag = ( 'div' === $args['style'] ) ? 'div' : 'li'; 411 412 $commenter = wp_get_current_commenter(); 413 $show_pending_links = ! empty( $commenter['comment_author'] ); 414 415 if ( $commenter['comment_author_email'] ) { 416 $moderation_note = __( 'Your comment is awaiting moderation.' ); 417 } else { 418 $moderation_note = __( 'Your comment is awaiting moderation. This is a preview; your comment will be visible after it has been approved.' ); 419 } 420 ?> 421 <<?php echo $tag; ?> id="comment-<?php comment_ID(); ?>" <?php comment_class( $this->has_children ? 'parent' : '', $comment ); ?>> 422 <article id="div-comment-<?php comment_ID(); ?>" class="comment-body"> 423 <footer class="comment-meta"> 424 <div class="comment-author vcard"> 425 <?php 426 if ( 0 !== $args['avatar_size'] ) { 427 echo get_avatar( $comment, $args['avatar_size'] ); 428 } 429 ?> 430 <?php 431 $comment_author = get_comment_author_link( $comment ); 432 433 if ( '0' === $comment->comment_approved && ! $show_pending_links ) { 434 $comment_author = get_comment_author( $comment ); 435 } 436 437 printf( 438 /* translators: %s: Comment author link. */ 439 __( '%s <span class="says">says:</span>' ), 440 sprintf( '<b class="fn">%s</b>', $comment_author ) 441 ); 442 ?> 443 </div><!-- .comment-author --> 444 445 <div class="comment-metadata"> 446 <?php 447 printf( 448 '<a href="%s"><time datetime="%s">%s</time></a>', 449 esc_url( get_comment_link( $comment, $args ) ), 450 get_comment_time( 'c' ), 451 sprintf( 452 /* translators: 1: Comment date, 2: Comment time. */ 453 __( '%1$s at %2$s' ), 454 get_comment_date( '', $comment ), 455 get_comment_time() 456 ) 457 ); 458 459 edit_comment_link( __( 'Edit' ), ' <span class="edit-link">', '</span>' ); 460 ?> 461 </div><!-- .comment-metadata --> 462 463 <?php if ( '0' === $comment->comment_approved ) : ?> 464 <em class="comment-awaiting-moderation"><?php echo $moderation_note; ?></em> 465 <?php endif; ?> 466 </footer><!-- .comment-meta --> 467 468 <div class="comment-content"> 469 <?php comment_text(); ?> 470 </div><!-- .comment-content --> 471 472 <?php 473 if ( '1' === $comment->comment_approved || $show_pending_links ) { 474 comment_reply_link( 475 array_merge( 476 $args, 477 array( 478 'add_below' => 'div-comment', 479 'depth' => $depth, 480 'max_depth' => $args['max_depth'], 481 'before' => '<div class="reply">', 482 'after' => '</div>', 483 ) 484 ) 485 ); 486 } 487 ?> 488 </article><!-- .comment-body --> 489 <?php 490 } 491 }
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| Generated : Sat Dec 21 08:20:01 2024 | Cross-referenced by PHPXref |