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/wp-admin/includes/ -> class-wp-list-table.php (source)

   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 WP_Screen
  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'    => __( 'Compact view' ),
 170                  'excerpt' => __( 'Extended 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, true ) ) {
 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, true ) ) {
 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, true ) ) {
 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, true ) ) {
 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, true ) ) {
 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       * Gets the list of views available on this table.
 376       *
 377       * The format is an associative array:
 378       * - `'id' => 'link'`
 379       *
 380       * @since 3.1.0
 381       *
 382       * @return array
 383       */
 384  	protected function get_views() {
 385          return array();
 386      }
 387  
 388      /**
 389       * Displays the list of views available on this table.
 390       *
 391       * @since 3.1.0
 392       */
 393  	public function views() {
 394          $views = $this->get_views();
 395          /**
 396           * Filters the list of available list table views.
 397           *
 398           * The dynamic portion of the hook name, `$this->screen->id`, refers
 399           * to the ID of the current screen.
 400           *
 401           * @since 3.1.0
 402           *
 403           * @param string[] $views An array of available list table views.
 404           */
 405          $views = apply_filters( "views_{$this->screen->id}", $views );
 406  
 407          if ( empty( $views ) ) {
 408              return;
 409          }
 410  
 411          $this->screen->render_screen_reader_content( 'heading_views' );
 412  
 413          echo "<ul class='subsubsub'>\n";
 414          foreach ( $views as $class => $view ) {
 415              $views[ $class ] = "\t<li class='$class'>$view";
 416          }
 417          echo implode( " |</li>\n", $views ) . "</li>\n";
 418          echo '</ul>';
 419      }
 420  
 421      /**
 422       * Retrieves the list of bulk actions available for this table.
 423       *
 424       * The format is an associative array where each element represents either a top level option value and label, or
 425       * an array representing an optgroup and its options.
 426       *
 427       * For a standard option, the array element key is the field value and the array element value is the field label.
 428       *
 429       * For an optgroup, the array element key is the label and the array element value is an associative array of
 430       * options as above.
 431       *
 432       * Example:
 433       *
 434       *     [
 435       *         'edit'         => 'Edit',
 436       *         'delete'       => 'Delete',
 437       *         'Change State' => [
 438       *             'feature' => 'Featured',
 439       *             'sale'    => 'On Sale',
 440       *         ]
 441       *     ]
 442       *
 443       * @since 3.1.0
 444       * @since 5.6.0 A bulk action can now contain an array of options in order to create an optgroup.
 445       *
 446       * @return array
 447       */
 448  	protected function get_bulk_actions() {
 449          return array();
 450      }
 451  
 452      /**
 453       * Displays the bulk actions dropdown.
 454       *
 455       * @since 3.1.0
 456       *
 457       * @param string $which The location of the bulk actions: 'top' or 'bottom'.
 458       *                      This is designated as optional for backward compatibility.
 459       */
 460  	protected function bulk_actions( $which = '' ) {
 461          if ( is_null( $this->_actions ) ) {
 462              $this->_actions = $this->get_bulk_actions();
 463  
 464              /**
 465               * Filters the items in the bulk actions menu of the list table.
 466               *
 467               * The dynamic portion of the hook name, `$this->screen->id`, refers
 468               * to the ID of the current screen.
 469               *
 470               * @since 3.1.0
 471               * @since 5.6.0 A bulk action can now contain an array of options in order to create an optgroup.
 472               *
 473               * @param array $actions An array of the available bulk actions.
 474               */
 475              $this->_actions = apply_filters( "bulk_actions-{$this->screen->id}", $this->_actions ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 476  
 477              $two = '';
 478          } else {
 479              $two = '2';
 480          }
 481  
 482          if ( empty( $this->_actions ) ) {
 483              return;
 484          }
 485  
 486          echo '<label for="bulk-action-selector-' . esc_attr( $which ) . '" class="screen-reader-text">' . __( 'Select bulk action' ) . '</label>';
 487          echo '<select name="action' . $two . '" id="bulk-action-selector-' . esc_attr( $which ) . "\">\n";
 488          echo '<option value="-1">' . __( 'Bulk actions' ) . "</option>\n";
 489  
 490          foreach ( $this->_actions as $key => $value ) {
 491              if ( is_array( $value ) ) {
 492                  echo "\t" . '<optgroup label="' . esc_attr( $key ) . '">' . "\n";
 493  
 494                  foreach ( $value as $name => $title ) {
 495                      $class = ( 'edit' === $name ) ? ' class="hide-if-no-js"' : '';
 496  
 497                      echo "\t\t" . '<option value="' . esc_attr( $name ) . '"' . $class . '>' . $title . "</option>\n";
 498                  }
 499                  echo "\t" . "</optgroup>\n";
 500              } else {
 501                  $class = ( 'edit' === $key ) ? ' class="hide-if-no-js"' : '';
 502  
 503                  echo "\t" . '<option value="' . esc_attr( $key ) . '"' . $class . '>' . $value . "</option>\n";
 504              }
 505          }
 506  
 507          echo "</select>\n";
 508  
 509          submit_button( __( 'Apply' ), 'action', '', false, array( 'id' => "doaction$two" ) );
 510          echo "\n";
 511      }
 512  
 513      /**
 514       * Gets the current action selected from the bulk actions dropdown.
 515       *
 516       * @since 3.1.0
 517       *
 518       * @return string|false The action name. False if no action was selected.
 519       */
 520  	public function current_action() {
 521          if ( isset( $_REQUEST['filter_action'] ) && ! empty( $_REQUEST['filter_action'] ) ) {
 522              return false;
 523          }
 524  
 525          if ( isset( $_REQUEST['action'] ) && -1 != $_REQUEST['action'] ) {
 526              return $_REQUEST['action'];
 527          }
 528  
 529          return false;
 530      }
 531  
 532      /**
 533       * Generates the required HTML for a list of row action links.
 534       *
 535       * @since 3.1.0
 536       *
 537       * @param string[] $actions        An array of action links.
 538       * @param bool     $always_visible Whether the actions should be always visible.
 539       * @return string The HTML for the row actions.
 540       */
 541  	protected function row_actions( $actions, $always_visible = false ) {
 542          $action_count = count( $actions );
 543  
 544          if ( ! $action_count ) {
 545              return '';
 546          }
 547  
 548          $mode = get_user_setting( 'posts_list_mode', 'list' );
 549  
 550          if ( 'excerpt' === $mode ) {
 551              $always_visible = true;
 552          }
 553  
 554          $out = '<div class="' . ( $always_visible ? 'row-actions visible' : 'row-actions' ) . '">';
 555  
 556          $i = 0;
 557  
 558          foreach ( $actions as $action => $link ) {
 559              ++$i;
 560  
 561              $sep = ( $i < $action_count ) ? ' | ' : '';
 562  
 563              $out .= "<span class='$action'>$link$sep</span>";
 564          }
 565  
 566          $out .= '</div>';
 567  
 568          $out .= '<button type="button" class="toggle-row"><span class="screen-reader-text">' . __( 'Show more details' ) . '</span></button>';
 569  
 570          return $out;
 571      }
 572  
 573      /**
 574       * Displays a dropdown for filtering items in the list table by month.
 575       *
 576       * @since 3.1.0
 577       *
 578       * @global wpdb      $wpdb      WordPress database abstraction object.
 579       * @global WP_Locale $wp_locale WordPress date and time locale object.
 580       *
 581       * @param string $post_type The post type.
 582       */
 583  	protected function months_dropdown( $post_type ) {
 584          global $wpdb, $wp_locale;
 585  
 586          /**
 587           * Filters whether to remove the 'Months' drop-down from the post list table.
 588           *
 589           * @since 4.2.0
 590           *
 591           * @param bool   $disable   Whether to disable the drop-down. Default false.
 592           * @param string $post_type The post type.
 593           */
 594          if ( apply_filters( 'disable_months_dropdown', false, $post_type ) ) {
 595              return;
 596          }
 597  
 598          $extra_checks = "AND post_status != 'auto-draft'";
 599          if ( ! isset( $_GET['post_status'] ) || 'trash' !== $_GET['post_status'] ) {
 600              $extra_checks .= " AND post_status != 'trash'";
 601          } elseif ( isset( $_GET['post_status'] ) ) {
 602              $extra_checks = $wpdb->prepare( ' AND post_status = %s', $_GET['post_status'] );
 603          }
 604  
 605          $months = $wpdb->get_results(
 606              $wpdb->prepare(
 607                  "
 608              SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
 609              FROM $wpdb->posts
 610              WHERE post_type = %s
 611              $extra_checks
 612              ORDER BY post_date DESC
 613          ",
 614                  $post_type
 615              )
 616          );
 617  
 618          /**
 619           * Filters the 'Months' drop-down results.
 620           *
 621           * @since 3.7.0
 622           *
 623           * @param object[] $months    Array of the months drop-down query results.
 624           * @param string   $post_type The post type.
 625           */
 626          $months = apply_filters( 'months_dropdown_results', $months, $post_type );
 627  
 628          $month_count = count( $months );
 629  
 630          if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) {
 631              return;
 632          }
 633  
 634          $m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0;
 635          ?>
 636          <label for="filter-by-date" class="screen-reader-text"><?php _e( 'Filter by date' ); ?></label>
 637          <select name="m" id="filter-by-date">
 638              <option<?php selected( $m, 0 ); ?> value="0"><?php _e( 'All dates' ); ?></option>
 639          <?php
 640          foreach ( $months as $arc_row ) {
 641              if ( 0 == $arc_row->year ) {
 642                  continue;
 643              }
 644  
 645              $month = zeroise( $arc_row->month, 2 );
 646              $year  = $arc_row->year;
 647  
 648              printf(
 649                  "<option %s value='%s'>%s</option>\n",
 650                  selected( $m, $year . $month, false ),
 651                  esc_attr( $arc_row->year . $month ),
 652                  /* translators: 1: Month name, 2: 4-digit year. */
 653                  sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $month ), $year )
 654              );
 655          }
 656          ?>
 657          </select>
 658          <?php
 659      }
 660  
 661      /**
 662       * Displays a view switcher.
 663       *
 664       * @since 3.1.0
 665       *
 666       * @param string $current_mode
 667       */
 668  	protected function view_switcher( $current_mode ) {
 669          ?>
 670          <input type="hidden" name="mode" value="<?php echo esc_attr( $current_mode ); ?>" />
 671          <div class="view-switch">
 672          <?php
 673          foreach ( $this->modes as $mode => $title ) {
 674              $classes      = array( 'view-' . $mode );
 675              $aria_current = '';
 676  
 677              if ( $current_mode === $mode ) {
 678                  $classes[]    = 'current';
 679                  $aria_current = ' aria-current="page"';
 680              }
 681  
 682              printf(
 683                  "<a href='%s' class='%s' id='view-switch-$mode'$aria_current><span class='screen-reader-text'>%s</span></a>\n",
 684                  esc_url( remove_query_arg( 'attachment-filter', add_query_arg( 'mode', $mode ) ) ),
 685                  implode( ' ', $classes ),
 686                  $title
 687              );
 688          }
 689          ?>
 690          </div>
 691          <?php
 692      }
 693  
 694      /**
 695       * Displays a comment count bubble.
 696       *
 697       * @since 3.1.0
 698       *
 699       * @param int $post_id          The post ID.
 700       * @param int $pending_comments Number of pending comments.
 701       */
 702  	protected function comments_bubble( $post_id, $pending_comments ) {
 703          $approved_comments = get_comments_number();
 704  
 705          $approved_comments_number = number_format_i18n( $approved_comments );
 706          $pending_comments_number  = number_format_i18n( $pending_comments );
 707  
 708          $approved_only_phrase = sprintf(
 709              /* translators: %s: Number of comments. */
 710              _n( '%s comment', '%s comments', $approved_comments ),
 711              $approved_comments_number
 712          );
 713  
 714          $approved_phrase = sprintf(
 715              /* translators: %s: Number of comments. */
 716              _n( '%s approved comment', '%s approved comments', $approved_comments ),
 717              $approved_comments_number
 718          );
 719  
 720          $pending_phrase = sprintf(
 721              /* translators: %s: Number of comments. */
 722              _n( '%s pending comment', '%s pending comments', $pending_comments ),
 723              $pending_comments_number
 724          );
 725  
 726          if ( ! $approved_comments && ! $pending_comments ) {
 727              // No comments at all.
 728              printf(
 729                  '<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">%s</span>',
 730                  __( 'No comments' )
 731              );
 732          } elseif ( $approved_comments && 'trash' === get_post_status( $post_id ) ) {
 733              // Don't link the comment bubble for a trashed post.
 734              printf(
 735                  '<span 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></span>',
 736                  $approved_comments_number,
 737                  $pending_comments ? $approved_phrase : $approved_only_phrase
 738              );
 739          } elseif ( $approved_comments ) {
 740              // Link the comment bubble to approved comments.
 741              printf(
 742                  '<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>',
 743                  esc_url(
 744                      add_query_arg(
 745                          array(
 746                              'p'              => $post_id,
 747                              'comment_status' => 'approved',
 748                          ),
 749                          admin_url( 'edit-comments.php' )
 750                      )
 751                  ),
 752                  $approved_comments_number,
 753                  $pending_comments ? $approved_phrase : $approved_only_phrase
 754              );
 755          } else {
 756              // Don't link the comment bubble when there are no approved comments.
 757              printf(
 758                  '<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>',
 759                  $approved_comments_number,
 760                  $pending_comments ? __( 'No approved comments' ) : __( 'No comments' )
 761              );
 762          }
 763  
 764          if ( $pending_comments ) {
 765              printf(
 766                  '<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>',
 767                  esc_url(
 768                      add_query_arg(
 769                          array(
 770                              'p'              => $post_id,
 771                              'comment_status' => 'moderated',
 772                          ),
 773                          admin_url( 'edit-comments.php' )
 774                      )
 775                  ),
 776                  $pending_comments_number,
 777                  $pending_phrase
 778              );
 779          } else {
 780              printf(
 781                  '<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>',
 782                  $pending_comments_number,
 783                  $approved_comments ? __( 'No pending comments' ) : __( 'No comments' )
 784              );
 785          }
 786      }
 787  
 788      /**
 789       * Gets the current page number.
 790       *
 791       * @since 3.1.0
 792       *
 793       * @return int
 794       */
 795  	public function get_pagenum() {
 796          $pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0;
 797  
 798          if ( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] ) {
 799              $pagenum = $this->_pagination_args['total_pages'];
 800          }
 801  
 802          return max( 1, $pagenum );
 803      }
 804  
 805      /**
 806       * Gets the number of items to display on a single page.
 807       *
 808       * @since 3.1.0
 809       *
 810       * @param string $option
 811       * @param int    $default
 812       * @return int
 813       */
 814  	protected function get_items_per_page( $option, $default = 20 ) {
 815          $per_page = (int) get_user_option( $option );
 816          if ( empty( $per_page ) || $per_page < 1 ) {
 817              $per_page = $default;
 818          }
 819  
 820          /**
 821           * Filters the number of items to be displayed on each page of the list table.
 822           *
 823           * The dynamic hook name, `$option`, refers to the `per_page` option depending
 824           * on the type of list table in use. Possible filter names include:
 825           *
 826           *  - `edit_comments_per_page`
 827           *  - `sites_network_per_page`
 828           *  - `site_themes_network_per_page`
 829           *  - `themes_network_per_page'`
 830           *  - `users_network_per_page`
 831           *  - `edit_post_per_page`
 832           *  - `edit_page_per_page'`
 833           *  - `edit_{$post_type}_per_page`
 834           *  - `edit_post_tag_per_page`
 835           *  - `edit_category_per_page`
 836           *  - `edit_{$taxonomy}_per_page`
 837           *  - `site_users_network_per_page`
 838           *  - `users_per_page`
 839           *
 840           * @since 2.9.0
 841           *
 842           * @param int $per_page Number of items to be displayed. Default 20.
 843           */
 844          return (int) apply_filters( "{$option}", $per_page );
 845      }
 846  
 847      /**
 848       * Displays the pagination.
 849       *
 850       * @since 3.1.0
 851       *
 852       * @param string $which
 853       */
 854  	protected function pagination( $which ) {
 855          if ( empty( $this->_pagination_args ) ) {
 856              return;
 857          }
 858  
 859          $total_items     = $this->_pagination_args['total_items'];
 860          $total_pages     = $this->_pagination_args['total_pages'];
 861          $infinite_scroll = false;
 862          if ( isset( $this->_pagination_args['infinite_scroll'] ) ) {
 863              $infinite_scroll = $this->_pagination_args['infinite_scroll'];
 864          }
 865  
 866          if ( 'top' === $which && $total_pages > 1 ) {
 867              $this->screen->render_screen_reader_content( 'heading_pagination' );
 868          }
 869  
 870          $output = '<span class="displaying-num">' . sprintf(
 871              /* translators: %s: Number of items. */
 872              _n( '%s item', '%s items', $total_items ),
 873              number_format_i18n( $total_items )
 874          ) . '</span>';
 875  
 876          $current              = $this->get_pagenum();
 877          $removable_query_args = wp_removable_query_args();
 878  
 879          $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
 880  
 881          $current_url = remove_query_arg( $removable_query_args, $current_url );
 882  
 883          $page_links = array();
 884  
 885          $total_pages_before = '<span class="paging-input">';
 886          $total_pages_after  = '</span></span>';
 887  
 888          $disable_first = false;
 889          $disable_last  = false;
 890          $disable_prev  = false;
 891          $disable_next  = false;
 892  
 893          if ( 1 == $current ) {
 894              $disable_first = true;
 895              $disable_prev  = true;
 896          }
 897          if ( 2 == $current ) {
 898              $disable_first = true;
 899          }
 900          if ( $total_pages == $current ) {
 901              $disable_last = true;
 902              $disable_next = true;
 903          }
 904          if ( $total_pages - 1 == $current ) {
 905              $disable_last = true;
 906          }
 907  
 908          if ( $disable_first ) {
 909              $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&laquo;</span>';
 910          } else {
 911              $page_links[] = sprintf(
 912                  "<a class='first-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>",
 913                  esc_url( remove_query_arg( 'paged', $current_url ) ),
 914                  __( 'First page' ),
 915                  '&laquo;'
 916              );
 917          }
 918  
 919          if ( $disable_prev ) {
 920              $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&lsaquo;</span>';
 921          } else {
 922              $page_links[] = sprintf(
 923                  "<a class='prev-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>",
 924                  esc_url( add_query_arg( 'paged', max( 1, $current - 1 ), $current_url ) ),
 925                  __( 'Previous page' ),
 926                  '&lsaquo;'
 927              );
 928          }
 929  
 930          if ( 'bottom' === $which ) {
 931              $html_current_page  = $current;
 932              $total_pages_before = '<span class="screen-reader-text">' . __( 'Current Page' ) . '</span><span id="table-paging" class="paging-input"><span class="tablenav-paging-text">';
 933          } else {
 934              $html_current_page = sprintf(
 935                  "%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'>",
 936                  '<label for="current-page-selector" class="screen-reader-text">' . __( 'Current Page' ) . '</label>',
 937                  $current,
 938                  strlen( $total_pages )
 939              );
 940          }
 941          $html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) );
 942          $page_links[]     = $total_pages_before . sprintf(
 943              /* translators: 1: Current page, 2: Total pages. */
 944              _x( '%1$s of %2$s', 'paging' ),
 945              $html_current_page,
 946              $html_total_pages
 947          ) . $total_pages_after;
 948  
 949          if ( $disable_next ) {
 950              $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&rsaquo;</span>';
 951          } else {
 952              $page_links[] = sprintf(
 953                  "<a class='next-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>",
 954                  esc_url( add_query_arg( 'paged', min( $total_pages, $current + 1 ), $current_url ) ),
 955                  __( 'Next page' ),
 956                  '&rsaquo;'
 957              );
 958          }
 959  
 960          if ( $disable_last ) {
 961              $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&raquo;</span>';
 962          } else {
 963              $page_links[] = sprintf(
 964                  "<a class='last-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>",
 965                  esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ),
 966                  __( 'Last page' ),
 967                  '&raquo;'
 968              );
 969          }
 970  
 971          $pagination_links_class = 'pagination-links';
 972          if ( ! empty( $infinite_scroll ) ) {
 973              $pagination_links_class .= ' hide-if-js';
 974          }
 975          $output .= "\n<span class='$pagination_links_class'>" . implode( "\n", $page_links ) . '</span>';
 976  
 977          if ( $total_pages ) {
 978              $page_class = $total_pages < 2 ? ' one-page' : '';
 979          } else {
 980              $page_class = ' no-pages';
 981          }
 982          $this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>";
 983  
 984          echo $this->_pagination;
 985      }
 986  
 987      /**
 988       * Gets a list of columns.
 989       *
 990       * The format is:
 991       * - `'internal-name' => 'Title'`
 992       *
 993       * @since 3.1.0
 994       * @abstract
 995       *
 996       * @return array
 997       */
 998  	public function get_columns() {
 999          die( 'function WP_List_Table::get_columns() must be overridden in a subclass.' );
1000      }
1001  
1002      /**
1003       * Gets a list of sortable columns.
1004       *
1005       * The format is:
1006       * - `'internal-name' => 'orderby'`
1007       * - `'internal-name' => array( 'orderby', 'asc' )` - The second element sets the initial sorting order.
1008       * - `'internal-name' => array( 'orderby', true )`  - The second element makes the initial order descending.
1009       *
1010       * @since 3.1.0
1011       *
1012       * @return array
1013       */
1014  	protected function get_sortable_columns() {
1015          return array();
1016      }
1017  
1018      /**
1019       * Gets the name of the default primary column.
1020       *
1021       * @since 4.3.0
1022       *
1023       * @return string Name of the default primary column, in this case, an empty string.
1024       */
1025  	protected function get_default_primary_column_name() {
1026          $columns = $this->get_columns();
1027          $column  = '';
1028  
1029          if ( empty( $columns ) ) {
1030              return $column;
1031          }
1032  
1033          // We need a primary defined so responsive views show something,
1034          // so let's fall back to the first non-checkbox column.
1035          foreach ( $columns as $col => $column_name ) {
1036              if ( 'cb' === $col ) {
1037                  continue;
1038              }
1039  
1040              $column = $col;
1041              break;
1042          }
1043  
1044          return $column;
1045      }
1046  
1047      /**
1048       * Public wrapper for WP_List_Table::get_default_primary_column_name().
1049       *
1050       * @since 4.4.0
1051       *
1052       * @return string Name of the default primary column.
1053       */
1054  	public function get_primary_column() {
1055          return $this->get_primary_column_name();
1056      }
1057  
1058      /**
1059       * Gets the name of the primary column.
1060       *
1061       * @since 4.3.0
1062       *
1063       * @return string The name of the primary column.
1064       */
1065  	protected function get_primary_column_name() {
1066          $columns = get_column_headers( $this->screen );
1067          $default = $this->get_default_primary_column_name();
1068  
1069          // If the primary column doesn't exist,
1070          // fall back to the first non-checkbox column.
1071          if ( ! isset( $columns[ $default ] ) ) {
1072              $default = self::get_default_primary_column_name();
1073          }
1074  
1075          /**
1076           * Filters the name of the primary column for the current list table.
1077           *
1078           * @since 4.3.0
1079           *
1080           * @param string $default Column name default for the specific list table, e.g. 'name'.
1081           * @param string $context Screen ID for specific list table, e.g. 'plugins'.
1082           */
1083          $column = apply_filters( 'list_table_primary_column', $default, $this->screen->id );
1084  
1085          if ( empty( $column ) || ! isset( $columns[ $column ] ) ) {
1086              $column = $default;
1087          }
1088  
1089          return $column;
1090      }
1091  
1092      /**
1093       * Gets a list of all, hidden, and sortable columns, with filter applied.
1094       *
1095       * @since 3.1.0
1096       *
1097       * @return array
1098       */
1099  	protected function get_column_info() {
1100          // $_column_headers is already set / cached.
1101          if ( isset( $this->_column_headers ) && is_array( $this->_column_headers ) ) {
1102              // Back-compat for list tables that have been manually setting $_column_headers for horse reasons.
1103              // In 4.3, we added a fourth argument for primary column.
1104              $column_headers = array( array(), array(), array(), $this->get_primary_column_name() );
1105              foreach ( $this->_column_headers as $key => $value ) {
1106                  $column_headers[ $key ] = $value;
1107              }
1108  
1109              return $column_headers;
1110          }
1111  
1112          $columns = get_column_headers( $this->screen );
1113          $hidden  = get_hidden_columns( $this->screen );
1114  
1115          $sortable_columns = $this->get_sortable_columns();
1116          /**
1117           * Filters the list table sortable columns for a specific screen.
1118           *
1119           * The dynamic portion of the hook name, `$this->screen->id`, refers
1120           * to the ID of the current screen.
1121           *
1122           * @since 3.1.0
1123           *
1124           * @param array $sortable_columns An array of sortable columns.
1125           */
1126          $_sortable = apply_filters( "manage_{$this->screen->id}_sortable_columns", $sortable_columns );
1127  
1128          $sortable = array();
1129          foreach ( $_sortable as $id => $data ) {
1130              if ( empty( $data ) ) {
1131                  continue;
1132              }
1133  
1134              $data = (array) $data;
1135              if ( ! isset( $data[1] ) ) {
1136                  $data[1] = false;
1137              }
1138  
1139              $sortable[ $id ] = $data;
1140          }
1141  
1142          $primary               = $this->get_primary_column_name();
1143          $this->_column_headers = array( $columns, $hidden, $sortable, $primary );
1144  
1145          return $this->_column_headers;
1146      }
1147  
1148      /**
1149       * Returns the number of visible columns.
1150       *
1151       * @since 3.1.0
1152       *
1153       * @return int
1154       */
1155  	public function get_column_count() {
1156          list ( $columns, $hidden ) = $this->get_column_info();
1157          $hidden                    = array_intersect( array_keys( $columns ), array_filter( $hidden ) );
1158          return count( $columns ) - count( $hidden );
1159      }
1160  
1161      /**
1162       * Prints column headers, accounting for hidden and sortable columns.
1163       *
1164       * @since 3.1.0
1165       *
1166       * @param bool $with_id Whether to set the ID attribute or not
1167       */
1168  	public function print_column_headers( $with_id = true ) {
1169          list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info();
1170  
1171          $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
1172          $current_url = remove_query_arg( 'paged', $current_url );
1173  
1174          if ( isset( $_GET['orderby'] ) ) {
1175              $current_orderby = $_GET['orderby'];
1176          } else {
1177              $current_orderby = '';
1178          }
1179  
1180          if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) {
1181              $current_order = 'desc';
1182          } else {
1183              $current_order = 'asc';
1184          }
1185  
1186          if ( ! empty( $columns['cb'] ) ) {
1187              static $cb_counter = 1;
1188              $columns['cb']     = '<label class="screen-reader-text" for="cb-select-all-' . $cb_counter . '">' . __( 'Select All' ) . '</label>'
1189                  . '<input id="cb-select-all-' . $cb_counter . '" type="checkbox" />';
1190              $cb_counter++;
1191          }
1192  
1193          foreach ( $columns as $column_key => $column_display_name ) {
1194              $class = array( 'manage-column', "column-$column_key" );
1195  
1196              if ( in_array( $column_key, $hidden, true ) ) {
1197                  $class[] = 'hidden';
1198              }
1199  
1200              if ( 'cb' === $column_key ) {
1201                  $class[] = 'check-column';
1202              } elseif ( in_array( $column_key, array( 'posts', 'comments', 'links' ), true ) ) {
1203                  $class[] = 'num';
1204              }
1205  
1206              if ( $column_key === $primary ) {
1207                  $class[] = 'column-primary';
1208              }
1209  
1210              if ( isset( $sortable[ $column_key ] ) ) {
1211                  list( $orderby, $desc_first ) = $sortable[ $column_key ];
1212  
1213                  if ( $current_orderby === $orderby ) {
1214                      $order = 'asc' === $current_order ? 'desc' : 'asc';
1215  
1216                      $class[] = 'sorted';
1217                      $class[] = $current_order;
1218                  } else {
1219                      $order = strtolower( $desc_first );
1220  
1221                      if ( ! in_array( $order, array( 'desc', 'asc' ), true ) ) {
1222                          $order = $desc_first ? 'desc' : 'asc';
1223                      }
1224  
1225                      $class[] = 'sortable';
1226                      $class[] = 'desc' === $order ? 'asc' : 'desc';
1227                  }
1228  
1229                  $column_display_name = sprintf(
1230                      '<a href="%s"><span>%s</span><span class="sorting-indicator"></span></a>',
1231                      esc_url( add_query_arg( compact( 'orderby', 'order' ), $current_url ) ),
1232                      $column_display_name
1233                  );
1234              }
1235  
1236              $tag   = ( 'cb' === $column_key ) ? 'td' : 'th';
1237              $scope = ( 'th' === $tag ) ? 'scope="col"' : '';
1238              $id    = $with_id ? "id='$column_key'" : '';
1239  
1240              if ( ! empty( $class ) ) {
1241                  $class = "class='" . implode( ' ', $class ) . "'";
1242              }
1243  
1244              echo "<$tag $scope $id $class>$column_display_name</$tag>";
1245          }
1246      }
1247  
1248      /**
1249       * Displays the table.
1250       *
1251       * @since 3.1.0
1252       */
1253  	public function display() {
1254          $singular = $this->_args['singular'];
1255  
1256          $this->display_tablenav( 'top' );
1257  
1258          $this->screen->render_screen_reader_content( 'heading_list' );
1259          ?>
1260  <table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>">
1261      <thead>
1262      <tr>
1263          <?php $this->print_column_headers(); ?>
1264      </tr>
1265      </thead>
1266  
1267      <tbody id="the-list"
1268          <?php
1269          if ( $singular ) {
1270              echo " data-wp-lists='list:$singular'";
1271          }
1272          ?>
1273          >
1274          <?php $this->display_rows_or_placeholder(); ?>
1275      </tbody>
1276  
1277      <tfoot>
1278      <tr>
1279          <?php $this->print_column_headers( false ); ?>
1280      </tr>
1281      </tfoot>
1282  
1283  </table>
1284          <?php
1285          $this->display_tablenav( 'bottom' );
1286      }
1287  
1288      /**
1289       * Gets a list of CSS classes for the WP_List_Table table tag.
1290       *
1291       * @since 3.1.0
1292       *
1293       * @return string[] Array of CSS classes for the table tag.
1294       */
1295  	protected function get_table_classes() {
1296          $mode = get_user_setting( 'posts_list_mode', 'list' );
1297  
1298          $mode_class = esc_attr( 'table-view-' . $mode );
1299  
1300          return array( 'widefat', 'fixed', 'striped', $mode_class, $this->_args['plural'] );
1301      }
1302  
1303      /**
1304       * Generates the table navigation above or below the table
1305       *
1306       * @since 3.1.0
1307       * @param string $which
1308       */
1309  	protected function display_tablenav( $which ) {
1310          if ( 'top' === $which ) {
1311              wp_nonce_field( 'bulk-' . $this->_args['plural'] );
1312          }
1313          ?>
1314      <div class="tablenav <?php echo esc_attr( $which ); ?>">
1315  
1316          <?php if ( $this->has_items() ) : ?>
1317          <div class="alignleft actions bulkactions">
1318              <?php $this->bulk_actions( $which ); ?>
1319          </div>
1320              <?php
1321          endif;
1322          $this->extra_tablenav( $which );
1323          $this->pagination( $which );
1324          ?>
1325  
1326          <br class="clear" />
1327      </div>
1328          <?php
1329      }
1330  
1331      /**
1332       * Extra controls to be displayed between bulk actions and pagination.
1333       *
1334       * @since 3.1.0
1335       *
1336       * @param string $which
1337       */
1338  	protected function extra_tablenav( $which ) {}
1339  
1340      /**
1341       * Generates the tbody element for the list table.
1342       *
1343       * @since 3.1.0
1344       */
1345  	public function display_rows_or_placeholder() {
1346          if ( $this->has_items() ) {
1347              $this->display_rows();
1348          } else {
1349              echo '<tr class="no-items"><td class="colspanchange" colspan="' . $this->get_column_count() . '">';
1350              $this->no_items();
1351              echo '</td></tr>';
1352          }
1353      }
1354  
1355      /**
1356       * Generates the table rows.
1357       *
1358       * @since 3.1.0
1359       */
1360  	public function display_rows() {
1361          foreach ( $this->items as $item ) {
1362              $this->single_row( $item );
1363          }
1364      }
1365  
1366      /**
1367       * Generates content for a single row of the table.
1368       *
1369       * @since 3.1.0
1370       *
1371       * @param object|array $item The current item
1372       */
1373  	public function single_row( $item ) {
1374          echo '<tr>';
1375          $this->single_row_columns( $item );
1376          echo '</tr>';
1377      }
1378  
1379      /**
1380       * @param object|array $item
1381       * @param string $column_name
1382       */
1383  	protected function column_default( $item, $column_name ) {}
1384  
1385      /**
1386       * @param object|array $item
1387       */
1388  	protected function column_cb( $item ) {}
1389  
1390      /**
1391       * Generates the columns for a single row of the table.
1392       *
1393       * @since 3.1.0
1394       *
1395       * @param object|array $item The current item.
1396       */
1397  	protected function single_row_columns( $item ) {
1398          list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info();
1399  
1400          foreach ( $columns as $column_name => $column_display_name ) {
1401              $classes = "$column_name column-$column_name";
1402              if ( $primary === $column_name ) {
1403                  $classes .= ' has-row-actions column-primary';
1404              }
1405  
1406              if ( in_array( $column_name, $hidden, true ) ) {
1407                  $classes .= ' hidden';
1408              }
1409  
1410              // Comments column uses HTML in the display name with screen reader text.
1411              // Instead of using esc_attr(), we strip tags to get closer to a user-friendly string.
1412              $data = 'data-colname="' . wp_strip_all_tags( $column_display_name ) . '"';
1413  
1414              $attributes = "class='$classes' $data";
1415  
1416              if ( 'cb' === $column_name ) {
1417                  echo '<th scope="row" class="check-column">';
1418                  echo $this->column_cb( $item );
1419                  echo '</th>';
1420              } elseif ( method_exists( $this, '_column_' . $column_name ) ) {
1421                  echo call_user_func(
1422                      array( $this, '_column_' . $column_name ),
1423                      $item,
1424                      $classes,
1425                      $data,
1426                      $primary
1427                  );
1428              } elseif ( method_exists( $this, 'column_' . $column_name ) ) {
1429                  echo "<td $attributes>";
1430                  echo call_user_func( array( $this, 'column_' . $column_name ), $item );
1431                  echo $this->handle_row_actions( $item, $column_name, $primary );
1432                  echo '</td>';
1433              } else {
1434                  echo "<td $attributes>";
1435                  echo $this->column_default( $item, $column_name );
1436                  echo $this->handle_row_actions( $item, $column_name, $primary );
1437                  echo '</td>';
1438              }
1439          }
1440      }
1441  
1442      /**
1443       * Generates and display row actions links for the list table.
1444       *
1445       * @since 4.3.0
1446       *
1447       * @param object|array $item        The item being acted upon.
1448       * @param string       $column_name Current column name.
1449       * @param string       $primary     Primary column name.
1450       * @return string The row actions HTML, or an empty string
1451       *                if the current column is not the primary column.
1452       */
1453  	protected function handle_row_actions( $item, $column_name, $primary ) {
1454          return $column_name === $primary ? '<button type="button" class="toggle-row"><span class="screen-reader-text">' . __( 'Show more details' ) . '</span></button>' : '';
1455      }
1456  
1457      /**
1458       * Handles an incoming ajax request (called from admin-ajax.php)
1459       *
1460       * @since 3.1.0
1461       */
1462  	public function ajax_response() {
1463          $this->prepare_items();
1464  
1465          ob_start();
1466          if ( ! empty( $_REQUEST['no_placeholder'] ) ) {
1467              $this->display_rows();
1468          } else {
1469              $this->display_rows_or_placeholder();
1470          }
1471  
1472          $rows = ob_get_clean();
1473  
1474          $response = array( 'rows' => $rows );
1475  
1476          if ( isset( $this->_pagination_args['total_items'] ) ) {
1477              $response['total_items_i18n'] = sprintf(
1478                  /* translators: Number of items. */
1479                  _n( '%s item', '%s items', $this->_pagination_args['total_items'] ),
1480                  number_format_i18n( $this->_pagination_args['total_items'] )
1481              );
1482          }
1483          if ( isset( $this->_pagination_args['total_pages'] ) ) {
1484              $response['total_pages']      = $this->_pagination_args['total_pages'];
1485              $response['total_pages_i18n'] = number_format_i18n( $this->_pagination_args['total_pages'] );
1486          }
1487  
1488          die( wp_json_encode( $response ) );
1489      }
1490  
1491      /**
1492       * Sends required variables to JavaScript land.
1493       *
1494       * @since 3.1.0
1495       */
1496  	public function _js_vars() {
1497          $args = array(
1498              'class'  => get_class( $this ),
1499              'screen' => array(
1500                  'id'   => $this->screen->id,
1501                  'base' => $this->screen->base,
1502              ),
1503          );
1504  
1505          printf( "<script type='text/javascript'>list_args = %s;</script>\n", wp_json_encode( $args ) );
1506      }
1507  }


Generated: Thu Jan 28 01:00:03 2021 Cross-referenced by PHPXref 0.7.1