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1 <?php 2 /** 3 * Administration API: WP_List_Table class 4 * 5 * @package WordPress 6 * @subpackage List_Table 7 * @since 3.1.0 8 */ 9 10 /** 11 * Base class for displaying a list of items in an ajaxified HTML table. 12 * 13 * @since 3.1.0 14 * @access private 15 */ 16 class WP_List_Table { 17 18 /** 19 * The current list of items. 20 * 21 * @since 3.1.0 22 * @var array 23 */ 24 public $items; 25 26 /** 27 * Various information about the current table. 28 * 29 * @since 3.1.0 30 * @var array 31 */ 32 protected $_args; 33 34 /** 35 * Various information needed for displaying the pagination. 36 * 37 * @since 3.1.0 38 * @var array 39 */ 40 protected $_pagination_args = array(); 41 42 /** 43 * The current screen. 44 * 45 * @since 3.1.0 46 * @var object 47 */ 48 protected $screen; 49 50 /** 51 * Cached bulk actions. 52 * 53 * @since 3.1.0 54 * @var array 55 */ 56 private $_actions; 57 58 /** 59 * Cached pagination output. 60 * 61 * @since 3.1.0 62 * @var string 63 */ 64 private $_pagination; 65 66 /** 67 * The view switcher modes. 68 * 69 * @since 4.1.0 70 * @var array 71 */ 72 protected $modes = array(); 73 74 /** 75 * Stores the value returned by ->get_column_info(). 76 * 77 * @since 4.1.0 78 * @var array 79 */ 80 protected $_column_headers; 81 82 /** 83 * {@internal Missing Summary} 84 * 85 * @var array 86 */ 87 protected $compat_fields = array( '_args', '_pagination_args', 'screen', '_actions', '_pagination' ); 88 89 /** 90 * {@internal Missing Summary} 91 * 92 * @var array 93 */ 94 protected $compat_methods = array( 95 'set_pagination_args', 96 'get_views', 97 'get_bulk_actions', 98 'bulk_actions', 99 'row_actions', 100 'months_dropdown', 101 'view_switcher', 102 'comments_bubble', 103 'get_items_per_page', 104 'pagination', 105 'get_sortable_columns', 106 'get_column_info', 107 'get_table_classes', 108 'display_tablenav', 109 'extra_tablenav', 110 'single_row_columns', 111 ); 112 113 /** 114 * Constructor. 115 * 116 * The child class should call this constructor from its own constructor to override 117 * the default $args. 118 * 119 * @since 3.1.0 120 * 121 * @param array|string $args { 122 * Array or string of arguments. 123 * 124 * @type string $plural Plural value used for labels and the objects being listed. 125 * This affects things such as CSS class-names and nonces used 126 * in the list table, e.g. 'posts'. Default empty. 127 * @type string $singular Singular label for an object being listed, e.g. 'post'. 128 * Default empty 129 * @type bool $ajax Whether the list table supports Ajax. This includes loading 130 * and sorting data, for example. If true, the class will call 131 * the _js_vars() method in the footer to provide variables 132 * to any scripts handling Ajax events. Default false. 133 * @type string $screen String containing the hook name used to determine the current 134 * screen. If left null, the current screen will be automatically set. 135 * Default null. 136 * } 137 */ 138 public function __construct( $args = array() ) { 139 $args = wp_parse_args( 140 $args, 141 array( 142 'plural' => '', 143 'singular' => '', 144 'ajax' => false, 145 'screen' => null, 146 ) 147 ); 148 149 $this->screen = convert_to_screen( $args['screen'] ); 150 151 add_filter( "manage_{$this->screen->id}_columns", array( $this, 'get_columns' ), 0 ); 152 153 if ( ! $args['plural'] ) { 154 $args['plural'] = $this->screen->base; 155 } 156 157 $args['plural'] = sanitize_key( $args['plural'] ); 158 $args['singular'] = sanitize_key( $args['singular'] ); 159 160 $this->_args = $args; 161 162 if ( $args['ajax'] ) { 163 // wp_enqueue_script( 'list-table' ); 164 add_action( 'admin_footer', array( $this, '_js_vars' ) ); 165 } 166 167 if ( empty( $this->modes ) ) { 168 $this->modes = array( 169 'list' => __( 'List View' ), 170 'excerpt' => __( 'Excerpt View' ), 171 ); 172 } 173 } 174 175 /** 176 * Make private properties readable for backward compatibility. 177 * 178 * @since 4.0.0 179 * 180 * @param string $name Property to get. 181 * @return mixed Property. 182 */ 183 public function __get( $name ) { 184 if ( in_array( $name, $this->compat_fields ) ) { 185 return $this->$name; 186 } 187 } 188 189 /** 190 * Make private properties settable for backward compatibility. 191 * 192 * @since 4.0.0 193 * 194 * @param string $name Property to check if set. 195 * @param mixed $value Property value. 196 * @return mixed Newly-set property. 197 */ 198 public function __set( $name, $value ) { 199 if ( in_array( $name, $this->compat_fields ) ) { 200 return $this->$name = $value; 201 } 202 } 203 204 /** 205 * Make private properties checkable for backward compatibility. 206 * 207 * @since 4.0.0 208 * 209 * @param string $name Property to check if set. 210 * @return bool Whether the property is set. 211 */ 212 public function __isset( $name ) { 213 if ( in_array( $name, $this->compat_fields ) ) { 214 return isset( $this->$name ); 215 } 216 } 217 218 /** 219 * Make private properties un-settable for backward compatibility. 220 * 221 * @since 4.0.0 222 * 223 * @param string $name Property to unset. 224 */ 225 public function __unset( $name ) { 226 if ( in_array( $name, $this->compat_fields ) ) { 227 unset( $this->$name ); 228 } 229 } 230 231 /** 232 * Make private/protected methods readable for backward compatibility. 233 * 234 * @since 4.0.0 235 * 236 * @param string $name Method to call. 237 * @param array $arguments Arguments to pass when calling. 238 * @return mixed|bool Return value of the callback, false otherwise. 239 */ 240 public function __call( $name, $arguments ) { 241 if ( in_array( $name, $this->compat_methods ) ) { 242 return $this->$name( ...$arguments ); 243 } 244 return false; 245 } 246 247 /** 248 * Checks the current user's permissions 249 * 250 * @since 3.1.0 251 * @abstract 252 */ 253 public function ajax_user_can() { 254 die( 'function WP_List_Table::ajax_user_can() must be overridden in a subclass.' ); 255 } 256 257 /** 258 * Prepares the list of items for displaying. 259 * 260 * @uses WP_List_Table::set_pagination_args() 261 * 262 * @since 3.1.0 263 * @abstract 264 */ 265 public function prepare_items() { 266 die( 'function WP_List_Table::prepare_items() must be overridden in a subclass.' ); 267 } 268 269 /** 270 * An internal method that sets all the necessary pagination arguments 271 * 272 * @since 3.1.0 273 * 274 * @param array|string $args Array or string of arguments with information about the pagination. 275 */ 276 protected function set_pagination_args( $args ) { 277 $args = wp_parse_args( 278 $args, 279 array( 280 'total_items' => 0, 281 'total_pages' => 0, 282 'per_page' => 0, 283 ) 284 ); 285 286 if ( ! $args['total_pages'] && $args['per_page'] > 0 ) { 287 $args['total_pages'] = ceil( $args['total_items'] / $args['per_page'] ); 288 } 289 290 // Redirect if page number is invalid and headers are not already sent. 291 if ( ! headers_sent() && ! wp_doing_ajax() && $args['total_pages'] > 0 && $this->get_pagenum() > $args['total_pages'] ) { 292 wp_redirect( add_query_arg( 'paged', $args['total_pages'] ) ); 293 exit; 294 } 295 296 $this->_pagination_args = $args; 297 } 298 299 /** 300 * Access the pagination args. 301 * 302 * @since 3.1.0 303 * 304 * @param string $key Pagination argument to retrieve. Common values include 'total_items', 305 * 'total_pages', 'per_page', or 'infinite_scroll'. 306 * @return int Number of items that correspond to the given pagination argument. 307 */ 308 public function get_pagination_arg( $key ) { 309 if ( 'page' === $key ) { 310 return $this->get_pagenum(); 311 } 312 313 if ( isset( $this->_pagination_args[ $key ] ) ) { 314 return $this->_pagination_args[ $key ]; 315 } 316 } 317 318 /** 319 * Whether the table has items to display or not 320 * 321 * @since 3.1.0 322 * 323 * @return bool 324 */ 325 public function has_items() { 326 return ! empty( $this->items ); 327 } 328 329 /** 330 * Message to be displayed when there are no items 331 * 332 * @since 3.1.0 333 */ 334 public function no_items() { 335 _e( 'No items found.' ); 336 } 337 338 /** 339 * Displays the search box. 340 * 341 * @since 3.1.0 342 * 343 * @param string $text The 'submit' button label. 344 * @param string $input_id ID attribute value for the search input field. 345 */ 346 public function search_box( $text, $input_id ) { 347 if ( empty( $_REQUEST['s'] ) && ! $this->has_items() ) { 348 return; 349 } 350 351 $input_id = $input_id . '-search-input'; 352 353 if ( ! empty( $_REQUEST['orderby'] ) ) { 354 echo '<input type="hidden" name="orderby" value="' . esc_attr( $_REQUEST['orderby'] ) . '" />'; 355 } 356 if ( ! empty( $_REQUEST['order'] ) ) { 357 echo '<input type="hidden" name="order" value="' . esc_attr( $_REQUEST['order'] ) . '" />'; 358 } 359 if ( ! empty( $_REQUEST['post_mime_type'] ) ) { 360 echo '<input type="hidden" name="post_mime_type" value="' . esc_attr( $_REQUEST['post_mime_type'] ) . '" />'; 361 } 362 if ( ! empty( $_REQUEST['detached'] ) ) { 363 echo '<input type="hidden" name="detached" value="' . esc_attr( $_REQUEST['detached'] ) . '" />'; 364 } 365 ?> 366 <p class="search-box"> 367 <label class="screen-reader-text" for="<?php echo esc_attr( $input_id ); ?>"><?php echo $text; ?>:</label> 368 <input type="search" id="<?php echo esc_attr( $input_id ); ?>" name="s" value="<?php _admin_search_query(); ?>" /> 369 <?php submit_button( $text, '', '', false, array( 'id' => 'search-submit' ) ); ?> 370 </p> 371 <?php 372 } 373 374 /** 375 * Get an associative array ( id => link ) with the list 376 * of views available on this table. 377 * 378 * @since 3.1.0 379 * 380 * @return array 381 */ 382 protected function get_views() { 383 return array(); 384 } 385 386 /** 387 * Display the list of views available on this table. 388 * 389 * @since 3.1.0 390 */ 391 public function views() { 392 $views = $this->get_views(); 393 /** 394 * Filters the list of available list table views. 395 * 396 * The dynamic portion of the hook name, `$this->screen->id`, refers 397 * to the ID of the current screen, usually a string. 398 * 399 * @since 3.5.0 400 * 401 * @param string[] $views An array of available list table views. 402 */ 403 $views = apply_filters( "views_{$this->screen->id}", $views ); 404 405 if ( empty( $views ) ) { 406 return; 407 } 408 409 $this->screen->render_screen_reader_content( 'heading_views' ); 410 411 echo "<ul class='subsubsub'>\n"; 412 foreach ( $views as $class => $view ) { 413 $views[ $class ] = "\t<li class='$class'>$view"; 414 } 415 echo implode( " |</li>\n", $views ) . "</li>\n"; 416 echo '</ul>'; 417 } 418 419 /** 420 * Get an associative array ( option_name => option_title ) with the list 421 * of bulk actions available on this table. 422 * 423 * @since 3.1.0 424 * 425 * @return array 426 */ 427 protected function get_bulk_actions() { 428 return array(); 429 } 430 431 /** 432 * Display the bulk actions dropdown. 433 * 434 * @since 3.1.0 435 * 436 * @param string $which The location of the bulk actions: 'top' or 'bottom'. 437 * This is designated as optional for backward compatibility. 438 */ 439 protected function bulk_actions( $which = '' ) { 440 if ( is_null( $this->_actions ) ) { 441 $this->_actions = $this->get_bulk_actions(); 442 /** 443 * Filters the list table Bulk Actions drop-down. 444 * 445 * The dynamic portion of the hook name, `$this->screen->id`, refers 446 * to the ID of the current screen, usually a string. 447 * 448 * This filter can currently only be used to remove bulk actions. 449 * 450 * @since 3.5.0 451 * 452 * @param string[] $actions An array of the available bulk actions. 453 */ 454 $this->_actions = apply_filters( "bulk_actions-{$this->screen->id}", $this->_actions ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores 455 $two = ''; 456 } else { 457 $two = '2'; 458 } 459 460 if ( empty( $this->_actions ) ) { 461 return; 462 } 463 464 echo '<label for="bulk-action-selector-' . esc_attr( $which ) . '" class="screen-reader-text">' . __( 'Select bulk action' ) . '</label>'; 465 echo '<select name="action' . $two . '" id="bulk-action-selector-' . esc_attr( $which ) . "\">\n"; 466 echo '<option value="-1">' . __( 'Bulk Actions' ) . "</option>\n"; 467 468 foreach ( $this->_actions as $name => $title ) { 469 $class = 'edit' === $name ? ' class="hide-if-no-js"' : ''; 470 471 echo "\t" . '<option value="' . $name . '"' . $class . '>' . $title . "</option>\n"; 472 } 473 474 echo "</select>\n"; 475 476 submit_button( __( 'Apply' ), 'action', '', false, array( 'id' => "doaction$two" ) ); 477 echo "\n"; 478 } 479 480 /** 481 * Get the current action selected from the bulk actions dropdown. 482 * 483 * @since 3.1.0 484 * 485 * @return string|false The action name or False if no action was selected 486 */ 487 public function current_action() { 488 if ( isset( $_REQUEST['filter_action'] ) && ! empty( $_REQUEST['filter_action'] ) ) { 489 return false; 490 } 491 492 if ( isset( $_REQUEST['action'] ) && -1 != $_REQUEST['action'] ) { 493 return $_REQUEST['action']; 494 } 495 496 if ( isset( $_REQUEST['action2'] ) && -1 != $_REQUEST['action2'] ) { 497 return $_REQUEST['action2']; 498 } 499 500 return false; 501 } 502 503 /** 504 * Generates the required HTML for a list of row action links. 505 * 506 * @since 3.1.0 507 * 508 * @param string[] $actions An array of action links. 509 * @param bool $always_visible Whether the actions should be always visible. 510 * @return string The HTML for the row actions. 511 */ 512 protected function row_actions( $actions, $always_visible = false ) { 513 $action_count = count( $actions ); 514 $i = 0; 515 516 if ( ! $action_count ) { 517 return ''; 518 } 519 520 $out = '<div class="' . ( $always_visible ? 'row-actions visible' : 'row-actions' ) . '">'; 521 foreach ( $actions as $action => $link ) { 522 ++$i; 523 ( $i == $action_count ) ? $sep = '' : $sep = ' | '; 524 $out .= "<span class='$action'>$link$sep</span>"; 525 } 526 $out .= '</div>'; 527 528 $out .= '<button type="button" class="toggle-row"><span class="screen-reader-text">' . __( 'Show more details' ) . '</span></button>'; 529 530 return $out; 531 } 532 533 /** 534 * Displays a dropdown for filtering items in the list table by month. 535 * 536 * @since 3.1.0 537 * 538 * @global wpdb $wpdb WordPress database abstraction object. 539 * @global WP_Locale $wp_locale WordPress date and time locale object. 540 * 541 * @param string $post_type The post type. 542 */ 543 protected function months_dropdown( $post_type ) { 544 global $wpdb, $wp_locale; 545 546 /** 547 * Filters whether to remove the 'Months' drop-down from the post list table. 548 * 549 * @since 4.2.0 550 * 551 * @param bool $disable Whether to disable the drop-down. Default false. 552 * @param string $post_type The post type. 553 */ 554 if ( apply_filters( 'disable_months_dropdown', false, $post_type ) ) { 555 return; 556 } 557 558 $extra_checks = "AND post_status != 'auto-draft'"; 559 if ( ! isset( $_GET['post_status'] ) || 'trash' !== $_GET['post_status'] ) { 560 $extra_checks .= " AND post_status != 'trash'"; 561 } elseif ( isset( $_GET['post_status'] ) ) { 562 $extra_checks = $wpdb->prepare( ' AND post_status = %s', $_GET['post_status'] ); 563 } 564 565 $months = $wpdb->get_results( 566 $wpdb->prepare( 567 " 568 SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month 569 FROM $wpdb->posts 570 WHERE post_type = %s 571 $extra_checks 572 ORDER BY post_date DESC 573 ", 574 $post_type 575 ) 576 ); 577 578 /** 579 * Filters the 'Months' drop-down results. 580 * 581 * @since 3.7.0 582 * 583 * @param object $months The months drop-down query results. 584 * @param string $post_type The post type. 585 */ 586 $months = apply_filters( 'months_dropdown_results', $months, $post_type ); 587 588 $month_count = count( $months ); 589 590 if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) { 591 return; 592 } 593 594 $m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0; 595 ?> 596 <label for="filter-by-date" class="screen-reader-text"><?php _e( 'Filter by date' ); ?></label> 597 <select name="m" id="filter-by-date"> 598 <option<?php selected( $m, 0 ); ?> value="0"><?php _e( 'All dates' ); ?></option> 599 <?php 600 foreach ( $months as $arc_row ) { 601 if ( 0 == $arc_row->year ) { 602 continue; 603 } 604 605 $month = zeroise( $arc_row->month, 2 ); 606 $year = $arc_row->year; 607 608 printf( 609 "<option %s value='%s'>%s</option>\n", 610 selected( $m, $year . $month, false ), 611 esc_attr( $arc_row->year . $month ), 612 /* translators: 1: Month name, 2: 4-digit year. */ 613 sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $month ), $year ) 614 ); 615 } 616 ?> 617 </select> 618 <?php 619 } 620 621 /** 622 * Display a view switcher 623 * 624 * @since 3.1.0 625 * 626 * @param string $current_mode 627 */ 628 protected function view_switcher( $current_mode ) { 629 ?> 630 <input type="hidden" name="mode" value="<?php echo esc_attr( $current_mode ); ?>" /> 631 <div class="view-switch"> 632 <?php 633 foreach ( $this->modes as $mode => $title ) { 634 $classes = array( 'view-' . $mode ); 635 $aria_current = ''; 636 637 if ( $current_mode === $mode ) { 638 $classes[] = 'current'; 639 $aria_current = ' aria-current="page"'; 640 } 641 printf( 642 "<a href='%s' class='%s' id='view-switch-$mode'$aria_current><span class='screen-reader-text'>%s</span></a>\n", 643 esc_url( add_query_arg( 'mode', $mode ) ), 644 implode( ' ', $classes ), 645 $title 646 ); 647 } 648 ?> 649 </div> 650 <?php 651 } 652 653 /** 654 * Display a comment count bubble 655 * 656 * @since 3.1.0 657 * 658 * @param int $post_id The post ID. 659 * @param int $pending_comments Number of pending comments. 660 */ 661 protected function comments_bubble( $post_id, $pending_comments ) { 662 $approved_comments = get_comments_number(); 663 664 $approved_comments_number = number_format_i18n( $approved_comments ); 665 $pending_comments_number = number_format_i18n( $pending_comments ); 666 667 $approved_only_phrase = sprintf( 668 /* translators: %s: Number of comments. */ 669 _n( '%s comment', '%s comments', $approved_comments ), 670 $approved_comments_number 671 ); 672 673 $approved_phrase = sprintf( 674 /* translators: %s: Number of comments. */ 675 _n( '%s approved comment', '%s approved comments', $approved_comments ), 676 $approved_comments_number 677 ); 678 679 $pending_phrase = sprintf( 680 /* translators: %s: Number of comments. */ 681 _n( '%s pending comment', '%s pending comments', $pending_comments ), 682 $pending_comments_number 683 ); 684 685 // No comments at all. 686 if ( ! $approved_comments && ! $pending_comments ) { 687 printf( 688 '<span aria-hidden="true">—</span><span class="screen-reader-text">%s</span>', 689 __( 'No comments' ) 690 ); 691 // Approved comments have different display depending on some conditions. 692 } elseif ( $approved_comments ) { 693 printf( 694 '<a href="%s" class="post-com-count post-com-count-approved"><span class="comment-count-approved" aria-hidden="true">%s</span><span class="screen-reader-text">%s</span></a>', 695 esc_url( 696 add_query_arg( 697 array( 698 'p' => $post_id, 699 'comment_status' => 'approved', 700 ), 701 admin_url( 'edit-comments.php' ) 702 ) 703 ), 704 $approved_comments_number, 705 $pending_comments ? $approved_phrase : $approved_only_phrase 706 ); 707 } else { 708 printf( 709 '<span class="post-com-count post-com-count-no-comments"><span class="comment-count comment-count-no-comments" aria-hidden="true">%s</span><span class="screen-reader-text">%s</span></span>', 710 $approved_comments_number, 711 $pending_comments ? __( 'No approved comments' ) : __( 'No comments' ) 712 ); 713 } 714 715 if ( $pending_comments ) { 716 printf( 717 '<a href="%s" class="post-com-count post-com-count-pending"><span class="comment-count-pending" aria-hidden="true">%s</span><span class="screen-reader-text">%s</span></a>', 718 esc_url( 719 add_query_arg( 720 array( 721 'p' => $post_id, 722 'comment_status' => 'moderated', 723 ), 724 admin_url( 'edit-comments.php' ) 725 ) 726 ), 727 $pending_comments_number, 728 $pending_phrase 729 ); 730 } else { 731 printf( 732 '<span class="post-com-count post-com-count-pending post-com-count-no-pending"><span class="comment-count comment-count-no-pending" aria-hidden="true">%s</span><span class="screen-reader-text">%s</span></span>', 733 $pending_comments_number, 734 $approved_comments ? __( 'No pending comments' ) : __( 'No comments' ) 735 ); 736 } 737 } 738 739 /** 740 * Get the current page number 741 * 742 * @since 3.1.0 743 * 744 * @return int 745 */ 746 public function get_pagenum() { 747 $pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0; 748 749 if ( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] ) { 750 $pagenum = $this->_pagination_args['total_pages']; 751 } 752 753 return max( 1, $pagenum ); 754 } 755 756 /** 757 * Get number of items to display on a single page 758 * 759 * @since 3.1.0 760 * 761 * @param string $option 762 * @param int $default 763 * @return int 764 */ 765 protected function get_items_per_page( $option, $default = 20 ) { 766 $per_page = (int) get_user_option( $option ); 767 if ( empty( $per_page ) || $per_page < 1 ) { 768 $per_page = $default; 769 } 770 771 /** 772 * Filters the number of items to be displayed on each page of the list table. 773 * 774 * The dynamic hook name, $option, refers to the `per_page` option depending 775 * on the type of list table in use. Possible values include: 'edit_comments_per_page', 776 * 'sites_network_per_page', 'site_themes_network_per_page', 'themes_network_per_page', 777 * 'users_network_per_page', 'edit_post_per_page', 'edit_page_per_page', 778 * 'edit_{$post_type}_per_page', etc. 779 * 780 * @since 2.9.0 781 * 782 * @param int $per_page Number of items to be displayed. Default 20. 783 */ 784 return (int) apply_filters( "{$option}", $per_page ); 785 } 786 787 /** 788 * Display the pagination. 789 * 790 * @since 3.1.0 791 * 792 * @param string $which 793 */ 794 protected function pagination( $which ) { 795 if ( empty( $this->_pagination_args ) ) { 796 return; 797 } 798 799 $total_items = $this->_pagination_args['total_items']; 800 $total_pages = $this->_pagination_args['total_pages']; 801 $infinite_scroll = false; 802 if ( isset( $this->_pagination_args['infinite_scroll'] ) ) { 803 $infinite_scroll = $this->_pagination_args['infinite_scroll']; 804 } 805 806 if ( 'top' === $which && $total_pages > 1 ) { 807 $this->screen->render_screen_reader_content( 'heading_pagination' ); 808 } 809 810 $output = '<span class="displaying-num">' . sprintf( 811 /* translators: %s: Number of items. */ 812 _n( '%s item', '%s items', $total_items ), 813 number_format_i18n( $total_items ) 814 ) . '</span>'; 815 816 $current = $this->get_pagenum(); 817 $removable_query_args = wp_removable_query_args(); 818 819 $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 820 821 $current_url = remove_query_arg( $removable_query_args, $current_url ); 822 823 $page_links = array(); 824 825 $total_pages_before = '<span class="paging-input">'; 826 $total_pages_after = '</span></span>'; 827 828 $disable_first = false; 829 $disable_last = false; 830 $disable_prev = false; 831 $disable_next = false; 832 833 if ( $current == 1 ) { 834 $disable_first = true; 835 $disable_prev = true; 836 } 837 if ( $current == 2 ) { 838 $disable_first = true; 839 } 840 if ( $current == $total_pages ) { 841 $disable_last = true; 842 $disable_next = true; 843 } 844 if ( $current == $total_pages - 1 ) { 845 $disable_last = true; 846 } 847 848 if ( $disable_first ) { 849 $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">«</span>'; 850 } else { 851 $page_links[] = sprintf( 852 "<a class='first-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>", 853 esc_url( remove_query_arg( 'paged', $current_url ) ), 854 __( 'First page' ), 855 '«' 856 ); 857 } 858 859 if ( $disable_prev ) { 860 $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">‹</span>'; 861 } else { 862 $page_links[] = sprintf( 863 "<a class='prev-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>", 864 esc_url( add_query_arg( 'paged', max( 1, $current - 1 ), $current_url ) ), 865 __( 'Previous page' ), 866 '‹' 867 ); 868 } 869 870 if ( 'bottom' === $which ) { 871 $html_current_page = $current; 872 $total_pages_before = '<span class="screen-reader-text">' . __( 'Current Page' ) . '</span><span id="table-paging" class="paging-input"><span class="tablenav-paging-text">'; 873 } else { 874 $html_current_page = sprintf( 875 "%s<input class='current-page' id='current-page-selector' type='text' name='paged' value='%s' size='%d' aria-describedby='table-paging' /><span class='tablenav-paging-text'>", 876 '<label for="current-page-selector" class="screen-reader-text">' . __( 'Current Page' ) . '</label>', 877 $current, 878 strlen( $total_pages ) 879 ); 880 } 881 $html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) ); 882 $page_links[] = $total_pages_before . sprintf( 883 /* translators: 1: Current page, 2: Total pages. */ 884 _x( '%1$s of %2$s', 'paging' ), 885 $html_current_page, 886 $html_total_pages 887 ) . $total_pages_after; 888 889 if ( $disable_next ) { 890 $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">›</span>'; 891 } else { 892 $page_links[] = sprintf( 893 "<a class='next-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>", 894 esc_url( add_query_arg( 'paged', min( $total_pages, $current + 1 ), $current_url ) ), 895 __( 'Next page' ), 896 '›' 897 ); 898 } 899 900 if ( $disable_last ) { 901 $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">»</span>'; 902 } else { 903 $page_links[] = sprintf( 904 "<a class='last-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>", 905 esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ), 906 __( 'Last page' ), 907 '»' 908 ); 909 } 910 911 $pagination_links_class = 'pagination-links'; 912 if ( ! empty( $infinite_scroll ) ) { 913 $pagination_links_class .= ' hide-if-js'; 914 } 915 $output .= "\n<span class='$pagination_links_class'>" . join( "\n", $page_links ) . '</span>'; 916 917 if ( $total_pages ) { 918 $page_class = $total_pages < 2 ? ' one-page' : ''; 919 } else { 920 $page_class = ' no-pages'; 921 } 922 $this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>"; 923 924 echo $this->_pagination; 925 } 926 927 /** 928 * Get a list of columns. The format is: 929 * 'internal-name' => 'Title' 930 * 931 * @since 3.1.0 932 * @abstract 933 * 934 * @return array 935 */ 936 public function get_columns() { 937 die( 'function WP_List_Table::get_columns() must be overridden in a subclass.' ); 938 } 939 940 /** 941 * Get a list of sortable columns. The format is: 942 * 'internal-name' => 'orderby' 943 * or 944 * 'internal-name' => array( 'orderby', true ) 945 * 946 * The second format will make the initial sorting order be descending 947 * 948 * @since 3.1.0 949 * 950 * @return array 951 */ 952 protected function get_sortable_columns() { 953 return array(); 954 } 955 956 /** 957 * Gets the name of the default primary column. 958 * 959 * @since 4.3.0 960 * 961 * @return string Name of the default primary column, in this case, an empty string. 962 */ 963 protected function get_default_primary_column_name() { 964 $columns = $this->get_columns(); 965 $column = ''; 966 967 if ( empty( $columns ) ) { 968 return $column; 969 } 970 971 // We need a primary defined so responsive views show something, 972 // so let's fall back to the first non-checkbox column. 973 foreach ( $columns as $col => $column_name ) { 974 if ( 'cb' === $col ) { 975 continue; 976 } 977 978 $column = $col; 979 break; 980 } 981 982 return $column; 983 } 984 985 /** 986 * Public wrapper for WP_List_Table::get_default_primary_column_name(). 987 * 988 * @since 4.4.0 989 * 990 * @return string Name of the default primary column. 991 */ 992 public function get_primary_column() { 993 return $this->get_primary_column_name(); 994 } 995 996 /** 997 * Gets the name of the primary column. 998 * 999 * @since 4.3.0 1000 * 1001 * @return string The name of the primary column. 1002 */ 1003 protected function get_primary_column_name() { 1004 $columns = get_column_headers( $this->screen ); 1005 $default = $this->get_default_primary_column_name(); 1006 1007 // If the primary column doesn't exist fall back to the 1008 // first non-checkbox column. 1009 if ( ! isset( $columns[ $default ] ) ) { 1010 $default = WP_List_Table::get_default_primary_column_name(); 1011 } 1012 1013 /** 1014 * Filters the name of the primary column for the current list table. 1015 * 1016 * @since 4.3.0 1017 * 1018 * @param string $default Column name default for the specific list table, e.g. 'name'. 1019 * @param string $context Screen ID for specific list table, e.g. 'plugins'. 1020 */ 1021 $column = apply_filters( 'list_table_primary_column', $default, $this->screen->id ); 1022 1023 if ( empty( $column ) || ! isset( $columns[ $column ] ) ) { 1024 $column = $default; 1025 } 1026 1027 return $column; 1028 } 1029 1030 /** 1031 * Get a list of all, hidden and sortable columns, with filter applied 1032 * 1033 * @since 3.1.0 1034 * 1035 * @return array 1036 */ 1037 protected function get_column_info() { 1038 // $_column_headers is already set / cached 1039 if ( isset( $this->_column_headers ) && is_array( $this->_column_headers ) ) { 1040 // Back-compat for list tables that have been manually setting $_column_headers for horse reasons. 1041 // In 4.3, we added a fourth argument for primary column. 1042 $column_headers = array( array(), array(), array(), $this->get_primary_column_name() ); 1043 foreach ( $this->_column_headers as $key => $value ) { 1044 $column_headers[ $key ] = $value; 1045 } 1046 1047 return $column_headers; 1048 } 1049 1050 $columns = get_column_headers( $this->screen ); 1051 $hidden = get_hidden_columns( $this->screen ); 1052 1053 $sortable_columns = $this->get_sortable_columns(); 1054 /** 1055 * Filters the list table sortable columns for a specific screen. 1056 * 1057 * The dynamic portion of the hook name, `$this->screen->id`, refers 1058 * to the ID of the current screen, usually a string. 1059 * 1060 * @since 3.5.0 1061 * 1062 * @param array $sortable_columns An array of sortable columns. 1063 */ 1064 $_sortable = apply_filters( "manage_{$this->screen->id}_sortable_columns", $sortable_columns ); 1065 1066 $sortable = array(); 1067 foreach ( $_sortable as $id => $data ) { 1068 if ( empty( $data ) ) { 1069 continue; 1070 } 1071 1072 $data = (array) $data; 1073 if ( ! isset( $data[1] ) ) { 1074 $data[1] = false; 1075 } 1076 1077 $sortable[ $id ] = $data; 1078 } 1079 1080 $primary = $this->get_primary_column_name(); 1081 $this->_column_headers = array( $columns, $hidden, $sortable, $primary ); 1082 1083 return $this->_column_headers; 1084 } 1085 1086 /** 1087 * Return number of visible columns 1088 * 1089 * @since 3.1.0 1090 * 1091 * @return int 1092 */ 1093 public function get_column_count() { 1094 list ( $columns, $hidden ) = $this->get_column_info(); 1095 $hidden = array_intersect( array_keys( $columns ), array_filter( $hidden ) ); 1096 return count( $columns ) - count( $hidden ); 1097 } 1098 1099 /** 1100 * Print column headers, accounting for hidden and sortable columns. 1101 * 1102 * @since 3.1.0 1103 * 1104 * @staticvar int $cb_counter 1105 * 1106 * @param bool $with_id Whether to set the id attribute or not 1107 */ 1108 public function print_column_headers( $with_id = true ) { 1109 list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info(); 1110 1111 $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1112 $current_url = remove_query_arg( 'paged', $current_url ); 1113 1114 if ( isset( $_GET['orderby'] ) ) { 1115 $current_orderby = $_GET['orderby']; 1116 } else { 1117 $current_orderby = ''; 1118 } 1119 1120 if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) { 1121 $current_order = 'desc'; 1122 } else { 1123 $current_order = 'asc'; 1124 } 1125 1126 if ( ! empty( $columns['cb'] ) ) { 1127 static $cb_counter = 1; 1128 $columns['cb'] = '<label class="screen-reader-text" for="cb-select-all-' . $cb_counter . '">' . __( 'Select All' ) . '</label>' 1129 . '<input id="cb-select-all-' . $cb_counter . '" type="checkbox" />'; 1130 $cb_counter++; 1131 } 1132 1133 foreach ( $columns as $column_key => $column_display_name ) { 1134 $class = array( 'manage-column', "column-$column_key" ); 1135 1136 if ( in_array( $column_key, $hidden ) ) { 1137 $class[] = 'hidden'; 1138 } 1139 1140 if ( 'cb' === $column_key ) { 1141 $class[] = 'check-column'; 1142 } elseif ( in_array( $column_key, array( 'posts', 'comments', 'links' ) ) ) { 1143 $class[] = 'num'; 1144 } 1145 1146 if ( $column_key === $primary ) { 1147 $class[] = 'column-primary'; 1148 } 1149 1150 if ( isset( $sortable[ $column_key ] ) ) { 1151 list( $orderby, $desc_first ) = $sortable[ $column_key ]; 1152 1153 if ( $current_orderby === $orderby ) { 1154 $order = 'asc' === $current_order ? 'desc' : 'asc'; 1155 $class[] = 'sorted'; 1156 $class[] = $current_order; 1157 } else { 1158 $order = $desc_first ? 'desc' : 'asc'; 1159 $class[] = 'sortable'; 1160 $class[] = $desc_first ? 'asc' : 'desc'; 1161 } 1162 1163 $column_display_name = '<a href="' . esc_url( add_query_arg( compact( 'orderby', 'order' ), $current_url ) ) . '"><span>' . $column_display_name . '</span><span class="sorting-indicator"></span></a>'; 1164 } 1165 1166 $tag = ( 'cb' === $column_key ) ? 'td' : 'th'; 1167 $scope = ( 'th' === $tag ) ? 'scope="col"' : ''; 1168 $id = $with_id ? "id='$column_key'" : ''; 1169 1170 if ( ! empty( $class ) ) { 1171 $class = "class='" . join( ' ', $class ) . "'"; 1172 } 1173 1174 echo "<$tag $scope $id $class>$column_display_name</$tag>"; 1175 } 1176 } 1177 1178 /** 1179 * Displays the table. 1180 * 1181 * @since 3.1.0 1182 */ 1183 public function display() { 1184 $singular = $this->_args['singular']; 1185 1186 $this->display_tablenav( 'top' ); 1187 1188 $this->screen->render_screen_reader_content( 'heading_list' ); 1189 ?> 1190 <table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>"> 1191 <thead> 1192 <tr> 1193 <?php $this->print_column_headers(); ?> 1194 </tr> 1195 </thead> 1196 1197 <tbody id="the-list" 1198 <?php 1199 if ( $singular ) { 1200 echo " data-wp-lists='list:$singular'"; 1201 } 1202 ?> 1203 > 1204 <?php $this->display_rows_or_placeholder(); ?> 1205 </tbody> 1206 1207 <tfoot> 1208 <tr> 1209 <?php $this->print_column_headers( false ); ?> 1210 </tr> 1211 </tfoot> 1212 1213 </table> 1214 <?php 1215 $this->display_tablenav( 'bottom' ); 1216 } 1217 1218 /** 1219 * Get a list of CSS classes for the WP_List_Table table tag. 1220 * 1221 * @since 3.1.0 1222 * 1223 * @return string[] Array of CSS classes for the table tag. 1224 */ 1225 protected function get_table_classes() { 1226 return array( 'widefat', 'fixed', 'striped', $this->_args['plural'] ); 1227 } 1228 1229 /** 1230 * Generate the table navigation above or below the table 1231 * 1232 * @since 3.1.0 1233 * @param string $which 1234 */ 1235 protected function display_tablenav( $which ) { 1236 if ( 'top' === $which ) { 1237 wp_nonce_field( 'bulk-' . $this->_args['plural'] ); 1238 } 1239 ?> 1240 <div class="tablenav <?php echo esc_attr( $which ); ?>"> 1241 1242 <?php if ( $this->has_items() ) : ?> 1243 <div class="alignleft actions bulkactions"> 1244 <?php $this->bulk_actions( $which ); ?> 1245 </div> 1246 <?php 1247 endif; 1248 $this->extra_tablenav( $which ); 1249 $this->pagination( $which ); 1250 ?> 1251 1252 <br class="clear" /> 1253 </div> 1254 <?php 1255 } 1256 1257 /** 1258 * Extra controls to be displayed between bulk actions and pagination 1259 * 1260 * @since 3.1.0 1261 * 1262 * @param string $which 1263 */ 1264 protected function extra_tablenav( $which ) {} 1265 1266 /** 1267 * Generate the tbody element for the list table. 1268 * 1269 * @since 3.1.0 1270 */ 1271 public function display_rows_or_placeholder() { 1272 if ( $this->has_items() ) { 1273 $this->display_rows(); 1274 } else { 1275 echo '<tr class="no-items"><td class="colspanchange" colspan="' . $this->get_column_count() . '">'; 1276 $this->no_items(); 1277 echo '</td></tr>'; 1278 } 1279 } 1280 1281 /** 1282 * Generate the table rows 1283 * 1284 * @since 3.1.0 1285 */ 1286 public function display_rows() { 1287 foreach ( $this->items as $item ) { 1288 $this->single_row( $item ); 1289 } 1290 } 1291 1292 /** 1293 * Generates content for a single row of the table 1294 * 1295 * @since 3.1.0 1296 * 1297 * @param object $item The current item 1298 */ 1299 public function single_row( $item ) { 1300 echo '<tr>'; 1301 $this->single_row_columns( $item ); 1302 echo '</tr>'; 1303 } 1304 1305 /** 1306 * @param object $item 1307 * @param string $column_name 1308 */ 1309 protected function column_default( $item, $column_name ) {} 1310 1311 /** 1312 * @param object $item 1313 */ 1314 protected function column_cb( $item ) {} 1315 1316 /** 1317 * Generates the columns for a single row of the table 1318 * 1319 * @since 3.1.0 1320 * 1321 * @param object $item The current item 1322 */ 1323 protected function single_row_columns( $item ) { 1324 list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info(); 1325 1326 foreach ( $columns as $column_name => $column_display_name ) { 1327 $classes = "$column_name column-$column_name"; 1328 if ( $primary === $column_name ) { 1329 $classes .= ' has-row-actions column-primary'; 1330 } 1331 1332 if ( in_array( $column_name, $hidden ) ) { 1333 $classes .= ' hidden'; 1334 } 1335 1336 // Comments column uses HTML in the display name with screen reader text. 1337 // Instead of using esc_attr(), we strip tags to get closer to a user-friendly string. 1338 $data = 'data-colname="' . wp_strip_all_tags( $column_display_name ) . '"'; 1339 1340 $attributes = "class='$classes' $data"; 1341 1342 if ( 'cb' === $column_name ) { 1343 echo '<th scope="row" class="check-column">'; 1344 echo $this->column_cb( $item ); 1345 echo '</th>'; 1346 } elseif ( method_exists( $this, '_column_' . $column_name ) ) { 1347 echo call_user_func( 1348 array( $this, '_column_' . $column_name ), 1349 $item, 1350 $classes, 1351 $data, 1352 $primary 1353 ); 1354 } elseif ( method_exists( $this, 'column_' . $column_name ) ) { 1355 echo "<td $attributes>"; 1356 echo call_user_func( array( $this, 'column_' . $column_name ), $item ); 1357 echo $this->handle_row_actions( $item, $column_name, $primary ); 1358 echo '</td>'; 1359 } else { 1360 echo "<td $attributes>"; 1361 echo $this->column_default( $item, $column_name ); 1362 echo $this->handle_row_actions( $item, $column_name, $primary ); 1363 echo '</td>'; 1364 } 1365 } 1366 } 1367 1368 /** 1369 * Generates and display row actions links for the list table. 1370 * 1371 * @since 4.3.0 1372 * 1373 * @param object $item The item being acted upon. 1374 * @param string $column_name Current column name. 1375 * @param string $primary Primary column name. 1376 * @return string The row actions HTML, or an empty string if the current column is the primary column. 1377 */ 1378 protected function handle_row_actions( $item, $column_name, $primary ) { 1379 return $column_name === $primary ? '<button type="button" class="toggle-row"><span class="screen-reader-text">' . __( 'Show more details' ) . '</span></button>' : ''; 1380 } 1381 1382 /** 1383 * Handle an incoming ajax request (called from admin-ajax.php) 1384 * 1385 * @since 3.1.0 1386 */ 1387 public function ajax_response() { 1388 $this->prepare_items(); 1389 1390 ob_start(); 1391 if ( ! empty( $_REQUEST['no_placeholder'] ) ) { 1392 $this->display_rows(); 1393 } else { 1394 $this->display_rows_or_placeholder(); 1395 } 1396 1397 $rows = ob_get_clean(); 1398 1399 $response = array( 'rows' => $rows ); 1400 1401 if ( isset( $this->_pagination_args['total_items'] ) ) { 1402 $response['total_items_i18n'] = sprintf( 1403 /* translators: Number of items. */ 1404 _n( '%s item', '%s items', $this->_pagination_args['total_items'] ), 1405 number_format_i18n( $this->_pagination_args['total_items'] ) 1406 ); 1407 } 1408 if ( isset( $this->_pagination_args['total_pages'] ) ) { 1409 $response['total_pages'] = $this->_pagination_args['total_pages']; 1410 $response['total_pages_i18n'] = number_format_i18n( $this->_pagination_args['total_pages'] ); 1411 } 1412 1413 die( wp_json_encode( $response ) ); 1414 } 1415 1416 /** 1417 * Send required variables to JavaScript land 1418 */ 1419 public function _js_vars() { 1420 $args = array( 1421 'class' => get_class( $this ), 1422 'screen' => array( 1423 'id' => $this->screen->id, 1424 'base' => $this->screen->base, 1425 ), 1426 ); 1427 1428 printf( "<script type='text/javascript'>list_args = %s;</script>\n", wp_json_encode( $args ) ); 1429 } 1430 }
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| Generated: Wed Nov 20 01:00:03 2019 | Cross-referenced by PHPXref 0.7.1 |