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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          /**
 599           * Filters to short-circuit performing the months dropdown query.
 600           *
 601           * @since 5.7.0
 602           *
 603           * @param object[]|false $months   'Months' drop-down results. Default false.
 604           * @param string         $post_type The post type.
 605           */
 606          $months = apply_filters( 'pre_months_dropdown_query', false, $post_type );
 607  
 608          if ( ! is_array( $months ) ) {
 609              $extra_checks = "AND post_status != 'auto-draft'";
 610              if ( ! isset( $_GET['post_status'] ) || 'trash' !== $_GET['post_status'] ) {
 611                  $extra_checks .= " AND post_status != 'trash'";
 612              } elseif ( isset( $_GET['post_status'] ) ) {
 613                  $extra_checks = $wpdb->prepare( ' AND post_status = %s', $_GET['post_status'] );
 614              }
 615  
 616              $months = $wpdb->get_results(
 617                  $wpdb->prepare(
 618                      "
 619                  SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
 620                  FROM $wpdb->posts
 621                  WHERE post_type = %s
 622                  $extra_checks
 623                  ORDER BY post_date DESC
 624              ",
 625                      $post_type
 626                  )
 627              );
 628          }
 629  
 630          /**
 631           * Filters the 'Months' drop-down results.
 632           *
 633           * @since 3.7.0
 634           *
 635           * @param object[] $months    Array of the months drop-down query results.
 636           * @param string   $post_type The post type.
 637           */
 638          $months = apply_filters( 'months_dropdown_results', $months, $post_type );
 639  
 640          $month_count = count( $months );
 641  
 642          if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) {
 643              return;
 644          }
 645  
 646          $m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0;
 647          ?>
 648          <label for="filter-by-date" class="screen-reader-text"><?php echo get_post_type_object( $post_type )->labels->filter_by_date; ?></label>
 649          <select name="m" id="filter-by-date">
 650              <option<?php selected( $m, 0 ); ?> value="0"><?php _e( 'All dates' ); ?></option>
 651          <?php
 652          foreach ( $months as $arc_row ) {
 653              if ( 0 == $arc_row->year ) {
 654                  continue;
 655              }
 656  
 657              $month = zeroise( $arc_row->month, 2 );
 658              $year  = $arc_row->year;
 659  
 660              printf(
 661                  "<option %s value='%s'>%s</option>\n",
 662                  selected( $m, $year . $month, false ),
 663                  esc_attr( $arc_row->year . $month ),
 664                  /* translators: 1: Month name, 2: 4-digit year. */
 665                  sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $month ), $year )
 666              );
 667          }
 668          ?>
 669          </select>
 670          <?php
 671      }
 672  
 673      /**
 674       * Displays a view switcher.
 675       *
 676       * @since 3.1.0
 677       *
 678       * @param string $current_mode
 679       */
 680  	protected function view_switcher( $current_mode ) {
 681          ?>
 682          <input type="hidden" name="mode" value="<?php echo esc_attr( $current_mode ); ?>" />
 683          <div class="view-switch">
 684          <?php
 685          foreach ( $this->modes as $mode => $title ) {
 686              $classes      = array( 'view-' . $mode );
 687              $aria_current = '';
 688  
 689              if ( $current_mode === $mode ) {
 690                  $classes[]    = 'current';
 691                  $aria_current = ' aria-current="page"';
 692              }
 693  
 694              printf(
 695                  "<a href='%s' class='%s' id='view-switch-$mode'$aria_current><span class='screen-reader-text'>%s</span></a>\n",
 696                  esc_url( remove_query_arg( 'attachment-filter', add_query_arg( 'mode', $mode ) ) ),
 697                  implode( ' ', $classes ),
 698                  $title
 699              );
 700          }
 701          ?>
 702          </div>
 703          <?php
 704      }
 705  
 706      /**
 707       * Displays a comment count bubble.
 708       *
 709       * @since 3.1.0
 710       *
 711       * @param int $post_id          The post ID.
 712       * @param int $pending_comments Number of pending comments.
 713       */
 714  	protected function comments_bubble( $post_id, $pending_comments ) {
 715          $approved_comments = get_comments_number();
 716  
 717          $approved_comments_number = number_format_i18n( $approved_comments );
 718          $pending_comments_number  = number_format_i18n( $pending_comments );
 719  
 720          $approved_only_phrase = sprintf(
 721              /* translators: %s: Number of comments. */
 722              _n( '%s comment', '%s comments', $approved_comments ),
 723              $approved_comments_number
 724          );
 725  
 726          $approved_phrase = sprintf(
 727              /* translators: %s: Number of comments. */
 728              _n( '%s approved comment', '%s approved comments', $approved_comments ),
 729              $approved_comments_number
 730          );
 731  
 732          $pending_phrase = sprintf(
 733              /* translators: %s: Number of comments. */
 734              _n( '%s pending comment', '%s pending comments', $pending_comments ),
 735              $pending_comments_number
 736          );
 737  
 738          if ( ! $approved_comments && ! $pending_comments ) {
 739              // No comments at all.
 740              printf(
 741                  '<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">%s</span>',
 742                  __( 'No comments' )
 743              );
 744          } elseif ( $approved_comments && 'trash' === get_post_status( $post_id ) ) {
 745              // Don't link the comment bubble for a trashed post.
 746              printf(
 747                  '<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>',
 748                  $approved_comments_number,
 749                  $pending_comments ? $approved_phrase : $approved_only_phrase
 750              );
 751          } elseif ( $approved_comments ) {
 752              // Link the comment bubble to approved comments.
 753              printf(
 754                  '<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>',
 755                  esc_url(
 756                      add_query_arg(
 757                          array(
 758                              'p'              => $post_id,
 759                              'comment_status' => 'approved',
 760                          ),
 761                          admin_url( 'edit-comments.php' )
 762                      )
 763                  ),
 764                  $approved_comments_number,
 765                  $pending_comments ? $approved_phrase : $approved_only_phrase
 766              );
 767          } else {
 768              // Don't link the comment bubble when there are no approved comments.
 769              printf(
 770                  '<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>',
 771                  $approved_comments_number,
 772                  $pending_comments ? __( 'No approved comments' ) : __( 'No comments' )
 773              );
 774          }
 775  
 776          if ( $pending_comments ) {
 777              printf(
 778                  '<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>',
 779                  esc_url(
 780                      add_query_arg(
 781                          array(
 782                              'p'              => $post_id,
 783                              'comment_status' => 'moderated',
 784                          ),
 785                          admin_url( 'edit-comments.php' )
 786                      )
 787                  ),
 788                  $pending_comments_number,
 789                  $pending_phrase
 790              );
 791          } else {
 792              printf(
 793                  '<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>',
 794                  $pending_comments_number,
 795                  $approved_comments ? __( 'No pending comments' ) : __( 'No comments' )
 796              );
 797          }
 798      }
 799  
 800      /**
 801       * Gets the current page number.
 802       *
 803       * @since 3.1.0
 804       *
 805       * @return int
 806       */
 807  	public function get_pagenum() {
 808          $pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0;
 809  
 810          if ( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] ) {
 811              $pagenum = $this->_pagination_args['total_pages'];
 812          }
 813  
 814          return max( 1, $pagenum );
 815      }
 816  
 817      /**
 818       * Gets the number of items to display on a single page.
 819       *
 820       * @since 3.1.0
 821       *
 822       * @param string $option
 823       * @param int    $default
 824       * @return int
 825       */
 826  	protected function get_items_per_page( $option, $default = 20 ) {
 827          $per_page = (int) get_user_option( $option );
 828          if ( empty( $per_page ) || $per_page < 1 ) {
 829              $per_page = $default;
 830          }
 831  
 832          /**
 833           * Filters the number of items to be displayed on each page of the list table.
 834           *
 835           * The dynamic hook name, `$option`, refers to the `per_page` option depending
 836           * on the type of list table in use. Possible filter names include:
 837           *
 838           *  - `edit_comments_per_page`
 839           *  - `sites_network_per_page`
 840           *  - `site_themes_network_per_page`
 841           *  - `themes_network_per_page'`
 842           *  - `users_network_per_page`
 843           *  - `edit_post_per_page`
 844           *  - `edit_page_per_page'`
 845           *  - `edit_{$post_type}_per_page`
 846           *  - `edit_post_tag_per_page`
 847           *  - `edit_category_per_page`
 848           *  - `edit_{$taxonomy}_per_page`
 849           *  - `site_users_network_per_page`
 850           *  - `users_per_page`
 851           *
 852           * @since 2.9.0
 853           *
 854           * @param int $per_page Number of items to be displayed. Default 20.
 855           */
 856          return (int) apply_filters( "{$option}", $per_page );
 857      }
 858  
 859      /**
 860       * Displays the pagination.
 861       *
 862       * @since 3.1.0
 863       *
 864       * @param string $which
 865       */
 866  	protected function pagination( $which ) {
 867          if ( empty( $this->_pagination_args ) ) {
 868              return;
 869          }
 870  
 871          $total_items     = $this->_pagination_args['total_items'];
 872          $total_pages     = $this->_pagination_args['total_pages'];
 873          $infinite_scroll = false;
 874          if ( isset( $this->_pagination_args['infinite_scroll'] ) ) {
 875              $infinite_scroll = $this->_pagination_args['infinite_scroll'];
 876          }
 877  
 878          if ( 'top' === $which && $total_pages > 1 ) {
 879              $this->screen->render_screen_reader_content( 'heading_pagination' );
 880          }
 881  
 882          $output = '<span class="displaying-num">' . sprintf(
 883              /* translators: %s: Number of items. */
 884              _n( '%s item', '%s items', $total_items ),
 885              number_format_i18n( $total_items )
 886          ) . '</span>';
 887  
 888          $current              = $this->get_pagenum();
 889          $removable_query_args = wp_removable_query_args();
 890  
 891          $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
 892  
 893          $current_url = remove_query_arg( $removable_query_args, $current_url );
 894  
 895          $page_links = array();
 896  
 897          $total_pages_before = '<span class="paging-input">';
 898          $total_pages_after  = '</span></span>';
 899  
 900          $disable_first = false;
 901          $disable_last  = false;
 902          $disable_prev  = false;
 903          $disable_next  = false;
 904  
 905          if ( 1 == $current ) {
 906              $disable_first = true;
 907              $disable_prev  = true;
 908          }
 909          if ( 2 == $current ) {
 910              $disable_first = true;
 911          }
 912          if ( $total_pages == $current ) {
 913              $disable_last = true;
 914              $disable_next = true;
 915          }
 916          if ( $total_pages - 1 == $current ) {
 917              $disable_last = true;
 918          }
 919  
 920          if ( $disable_first ) {
 921              $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&laquo;</span>';
 922          } else {
 923              $page_links[] = sprintf(
 924                  "<a class='first-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>",
 925                  esc_url( remove_query_arg( 'paged', $current_url ) ),
 926                  __( 'First page' ),
 927                  '&laquo;'
 928              );
 929          }
 930  
 931          if ( $disable_prev ) {
 932              $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&lsaquo;</span>';
 933          } else {
 934              $page_links[] = sprintf(
 935                  "<a class='prev-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>",
 936                  esc_url( add_query_arg( 'paged', max( 1, $current - 1 ), $current_url ) ),
 937                  __( 'Previous page' ),
 938                  '&lsaquo;'
 939              );
 940          }
 941  
 942          if ( 'bottom' === $which ) {
 943              $html_current_page  = $current;
 944              $total_pages_before = '<span class="screen-reader-text">' . __( 'Current Page' ) . '</span><span id="table-paging" class="paging-input"><span class="tablenav-paging-text">';
 945          } else {
 946              $html_current_page = sprintf(
 947                  "%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'>",
 948                  '<label for="current-page-selector" class="screen-reader-text">' . __( 'Current Page' ) . '</label>',
 949                  $current,
 950                  strlen( $total_pages )
 951              );
 952          }
 953          $html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) );
 954          $page_links[]     = $total_pages_before . sprintf(
 955              /* translators: 1: Current page, 2: Total pages. */
 956              _x( '%1$s of %2$s', 'paging' ),
 957              $html_current_page,
 958              $html_total_pages
 959          ) . $total_pages_after;
 960  
 961          if ( $disable_next ) {
 962              $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&rsaquo;</span>';
 963          } else {
 964              $page_links[] = sprintf(
 965                  "<a class='next-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>",
 966                  esc_url( add_query_arg( 'paged', min( $total_pages, $current + 1 ), $current_url ) ),
 967                  __( 'Next page' ),
 968                  '&rsaquo;'
 969              );
 970          }
 971  
 972          if ( $disable_last ) {
 973              $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&raquo;</span>';
 974          } else {
 975              $page_links[] = sprintf(
 976                  "<a class='last-page button' href='%s'><span class='screen-reader-text'>%s</span><span aria-hidden='true'>%s</span></a>",
 977                  esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ),
 978                  __( 'Last page' ),
 979                  '&raquo;'
 980              );
 981          }
 982  
 983          $pagination_links_class = 'pagination-links';
 984          if ( ! empty( $infinite_scroll ) ) {
 985              $pagination_links_class .= ' hide-if-js';
 986          }
 987          $output .= "\n<span class='$pagination_links_class'>" . implode( "\n", $page_links ) . '</span>';
 988  
 989          if ( $total_pages ) {
 990              $page_class = $total_pages < 2 ? ' one-page' : '';
 991          } else {
 992              $page_class = ' no-pages';
 993          }
 994          $this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>";
 995  
 996          echo $this->_pagination;
 997      }
 998  
 999      /**
1000       * Gets a list of columns.
1001       *
1002       * The format is:
1003       * - `'internal-name' => 'Title'`
1004       *
1005       * @since 3.1.0
1006       * @abstract
1007       *
1008       * @return array
1009       */
1010  	public function get_columns() {
1011          die( 'function WP_List_Table::get_columns() must be overridden in a subclass.' );
1012      }
1013  
1014      /**
1015       * Gets a list of sortable columns.
1016       *
1017       * The format is:
1018       * - `'internal-name' => 'orderby'`
1019       * - `'internal-name' => array( 'orderby', 'asc' )` - The second element sets the initial sorting order.
1020       * - `'internal-name' => array( 'orderby', true )`  - The second element makes the initial order descending.
1021       *
1022       * @since 3.1.0
1023       *
1024       * @return array
1025       */
1026  	protected function get_sortable_columns() {
1027          return array();
1028      }
1029  
1030      /**
1031       * Gets the name of the default primary column.
1032       *
1033       * @since 4.3.0
1034       *
1035       * @return string Name of the default primary column, in this case, an empty string.
1036       */
1037  	protected function get_default_primary_column_name() {
1038          $columns = $this->get_columns();
1039          $column  = '';
1040  
1041          if ( empty( $columns ) ) {
1042              return $column;
1043          }
1044  
1045          // We need a primary defined so responsive views show something,
1046          // so let's fall back to the first non-checkbox column.
1047          foreach ( $columns as $col => $column_name ) {
1048              if ( 'cb' === $col ) {
1049                  continue;
1050              }
1051  
1052              $column = $col;
1053              break;
1054          }
1055  
1056          return $column;
1057      }
1058  
1059      /**
1060       * Public wrapper for WP_List_Table::get_default_primary_column_name().
1061       *
1062       * @since 4.4.0
1063       *
1064       * @return string Name of the default primary column.
1065       */
1066  	public function get_primary_column() {
1067          return $this->get_primary_column_name();
1068      }
1069  
1070      /**
1071       * Gets the name of the primary column.
1072       *
1073       * @since 4.3.0
1074       *
1075       * @return string The name of the primary column.
1076       */
1077  	protected function get_primary_column_name() {
1078          $columns = get_column_headers( $this->screen );
1079          $default = $this->get_default_primary_column_name();
1080  
1081          // If the primary column doesn't exist,
1082          // fall back to the first non-checkbox column.
1083          if ( ! isset( $columns[ $default ] ) ) {
1084              $default = self::get_default_primary_column_name();
1085          }
1086  
1087          /**
1088           * Filters the name of the primary column for the current list table.
1089           *
1090           * @since 4.3.0
1091           *
1092           * @param string $default Column name default for the specific list table, e.g. 'name'.
1093           * @param string $context Screen ID for specific list table, e.g. 'plugins'.
1094           */
1095          $column = apply_filters( 'list_table_primary_column', $default, $this->screen->id );
1096  
1097          if ( empty( $column ) || ! isset( $columns[ $column ] ) ) {
1098              $column = $default;
1099          }
1100  
1101          return $column;
1102      }
1103  
1104      /**
1105       * Gets a list of all, hidden, and sortable columns, with filter applied.
1106       *
1107       * @since 3.1.0
1108       *
1109       * @return array
1110       */
1111  	protected function get_column_info() {
1112          // $_column_headers is already set / cached.
1113          if ( isset( $this->_column_headers ) && is_array( $this->_column_headers ) ) {
1114              /*
1115               * Backward compatibility for `$_column_headers` format prior to WordPress 4.3.
1116               *
1117               * In WordPress 4.3 the primary column name was added as a fourth item in the
1118               * column headers property. This ensures the primary column name is included
1119               * in plugins setting the property directly in the three item format.
1120               */
1121              $column_headers = array( array(), array(), array(), $this->get_primary_column_name() );
1122              foreach ( $this->_column_headers as $key => $value ) {
1123                  $column_headers[ $key ] = $value;
1124              }
1125  
1126              return $column_headers;
1127          }
1128  
1129          $columns = get_column_headers( $this->screen );
1130          $hidden  = get_hidden_columns( $this->screen );
1131  
1132          $sortable_columns = $this->get_sortable_columns();
1133          /**
1134           * Filters the list table sortable columns for a specific screen.
1135           *
1136           * The dynamic portion of the hook name, `$this->screen->id`, refers
1137           * to the ID of the current screen.
1138           *
1139           * @since 3.1.0
1140           *
1141           * @param array $sortable_columns An array of sortable columns.
1142           */
1143          $_sortable = apply_filters( "manage_{$this->screen->id}_sortable_columns", $sortable_columns );
1144  
1145          $sortable = array();
1146          foreach ( $_sortable as $id => $data ) {
1147              if ( empty( $data ) ) {
1148                  continue;
1149              }
1150  
1151              $data = (array) $data;
1152              if ( ! isset( $data[1] ) ) {
1153                  $data[1] = false;
1154              }
1155  
1156              $sortable[ $id ] = $data;
1157          }
1158  
1159          $primary               = $this->get_primary_column_name();
1160          $this->_column_headers = array( $columns, $hidden, $sortable, $primary );
1161  
1162          return $this->_column_headers;
1163      }
1164  
1165      /**
1166       * Returns the number of visible columns.
1167       *
1168       * @since 3.1.0
1169       *
1170       * @return int
1171       */
1172  	public function get_column_count() {
1173          list ( $columns, $hidden ) = $this->get_column_info();
1174          $hidden                    = array_intersect( array_keys( $columns ), array_filter( $hidden ) );
1175          return count( $columns ) - count( $hidden );
1176      }
1177  
1178      /**
1179       * Prints column headers, accounting for hidden and sortable columns.
1180       *
1181       * @since 3.1.0
1182       *
1183       * @param bool $with_id Whether to set the ID attribute or not
1184       */
1185  	public function print_column_headers( $with_id = true ) {
1186          list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info();
1187  
1188          $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
1189          $current_url = remove_query_arg( 'paged', $current_url );
1190  
1191          if ( isset( $_GET['orderby'] ) ) {
1192              $current_orderby = $_GET['orderby'];
1193          } else {
1194              $current_orderby = '';
1195          }
1196  
1197          if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) {
1198              $current_order = 'desc';
1199          } else {
1200              $current_order = 'asc';
1201          }
1202  
1203          if ( ! empty( $columns['cb'] ) ) {
1204              static $cb_counter = 1;
1205              $columns['cb']     = '<label class="screen-reader-text" for="cb-select-all-' . $cb_counter . '">' . __( 'Select All' ) . '</label>'
1206                  . '<input id="cb-select-all-' . $cb_counter . '" type="checkbox" />';
1207              $cb_counter++;
1208          }
1209  
1210          foreach ( $columns as $column_key => $column_display_name ) {
1211              $class = array( 'manage-column', "column-$column_key" );
1212  
1213              if ( in_array( $column_key, $hidden, true ) ) {
1214                  $class[] = 'hidden';
1215              }
1216  
1217              if ( 'cb' === $column_key ) {
1218                  $class[] = 'check-column';
1219              } elseif ( in_array( $column_key, array( 'posts', 'comments', 'links' ), true ) ) {
1220                  $class[] = 'num';
1221              }
1222  
1223              if ( $column_key === $primary ) {
1224                  $class[] = 'column-primary';
1225              }
1226  
1227              if ( isset( $sortable[ $column_key ] ) ) {
1228                  list( $orderby, $desc_first ) = $sortable[ $column_key ];
1229  
1230                  if ( $current_orderby === $orderby ) {
1231                      $order = 'asc' === $current_order ? 'desc' : 'asc';
1232  
1233                      $class[] = 'sorted';
1234                      $class[] = $current_order;
1235                  } else {
1236                      $order = strtolower( $desc_first );
1237  
1238                      if ( ! in_array( $order, array( 'desc', 'asc' ), true ) ) {
1239                          $order = $desc_first ? 'desc' : 'asc';
1240                      }
1241  
1242                      $class[] = 'sortable';
1243                      $class[] = 'desc' === $order ? 'asc' : 'desc';
1244                  }
1245  
1246                  $column_display_name = sprintf(
1247                      '<a href="%s"><span>%s</span><span class="sorting-indicator"></span></a>',
1248                      esc_url( add_query_arg( compact( 'orderby', 'order' ), $current_url ) ),
1249                      $column_display_name
1250                  );
1251              }
1252  
1253              $tag   = ( 'cb' === $column_key ) ? 'td' : 'th';
1254              $scope = ( 'th' === $tag ) ? 'scope="col"' : '';
1255              $id    = $with_id ? "id='$column_key'" : '';
1256  
1257              if ( ! empty( $class ) ) {
1258                  $class = "class='" . implode( ' ', $class ) . "'";
1259              }
1260  
1261              echo "<$tag $scope $id $class>$column_display_name</$tag>";
1262          }
1263      }
1264  
1265      /**
1266       * Displays the table.
1267       *
1268       * @since 3.1.0
1269       */
1270  	public function display() {
1271          $singular = $this->_args['singular'];
1272  
1273          $this->display_tablenav( 'top' );
1274  
1275          $this->screen->render_screen_reader_content( 'heading_list' );
1276          ?>
1277  <table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>">
1278      <thead>
1279      <tr>
1280          <?php $this->print_column_headers(); ?>
1281      </tr>
1282      </thead>
1283  
1284      <tbody id="the-list"
1285          <?php
1286          if ( $singular ) {
1287              echo " data-wp-lists='list:$singular'";
1288          }
1289          ?>
1290          >
1291          <?php $this->display_rows_or_placeholder(); ?>
1292      </tbody>
1293  
1294      <tfoot>
1295      <tr>
1296          <?php $this->print_column_headers( false ); ?>
1297      </tr>
1298      </tfoot>
1299  
1300  </table>
1301          <?php
1302          $this->display_tablenav( 'bottom' );
1303      }
1304  
1305      /**
1306       * Gets a list of CSS classes for the WP_List_Table table tag.
1307       *
1308       * @since 3.1.0
1309       *
1310       * @return string[] Array of CSS classes for the table tag.
1311       */
1312  	protected function get_table_classes() {
1313          $mode = get_user_setting( 'posts_list_mode', 'list' );
1314  
1315          $mode_class = esc_attr( 'table-view-' . $mode );
1316  
1317          return array( 'widefat', 'fixed', 'striped', $mode_class, $this->_args['plural'] );
1318      }
1319  
1320      /**
1321       * Generates the table navigation above or below the table
1322       *
1323       * @since 3.1.0
1324       * @param string $which
1325       */
1326  	protected function display_tablenav( $which ) {
1327          if ( 'top' === $which ) {
1328              wp_nonce_field( 'bulk-' . $this->_args['plural'] );
1329          }
1330          ?>
1331      <div class="tablenav <?php echo esc_attr( $which ); ?>">
1332  
1333          <?php if ( $this->has_items() ) : ?>
1334          <div class="alignleft actions bulkactions">
1335              <?php $this->bulk_actions( $which ); ?>
1336          </div>
1337              <?php
1338          endif;
1339          $this->extra_tablenav( $which );
1340          $this->pagination( $which );
1341          ?>
1342  
1343          <br class="clear" />
1344      </div>
1345          <?php
1346      }
1347  
1348      /**
1349       * Extra controls to be displayed between bulk actions and pagination.
1350       *
1351       * @since 3.1.0
1352       *
1353       * @param string $which
1354       */
1355  	protected function extra_tablenav( $which ) {}
1356  
1357      /**
1358       * Generates the tbody element for the list table.
1359       *
1360       * @since 3.1.0
1361       */
1362  	public function display_rows_or_placeholder() {
1363          if ( $this->has_items() ) {
1364              $this->display_rows();
1365          } else {
1366              echo '<tr class="no-items"><td class="colspanchange" colspan="' . $this->get_column_count() . '">';
1367              $this->no_items();
1368              echo '</td></tr>';
1369          }
1370      }
1371  
1372      /**
1373       * Generates the table rows.
1374       *
1375       * @since 3.1.0
1376       */
1377  	public function display_rows() {
1378          foreach ( $this->items as $item ) {
1379              $this->single_row( $item );
1380          }
1381      }
1382  
1383      /**
1384       * Generates content for a single row of the table.
1385       *
1386       * @since 3.1.0
1387       *
1388       * @param object|array $item The current item
1389       */
1390  	public function single_row( $item ) {
1391          echo '<tr>';
1392          $this->single_row_columns( $item );
1393          echo '</tr>';
1394      }
1395  
1396      /**
1397       * @param object|array $item
1398       * @param string $column_name
1399       */
1400  	protected function column_default( $item, $column_name ) {}
1401  
1402      /**
1403       * @param object|array $item
1404       */
1405  	protected function column_cb( $item ) {}
1406  
1407      /**
1408       * Generates the columns for a single row of the table.
1409       *
1410       * @since 3.1.0
1411       *
1412       * @param object|array $item The current item.
1413       */
1414  	protected function single_row_columns( $item ) {
1415          list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info();
1416  
1417          foreach ( $columns as $column_name => $column_display_name ) {
1418              $classes = "$column_name column-$column_name";
1419              if ( $primary === $column_name ) {
1420                  $classes .= ' has-row-actions column-primary';
1421              }
1422  
1423              if ( in_array( $column_name, $hidden, true ) ) {
1424                  $classes .= ' hidden';
1425              }
1426  
1427              // Comments column uses HTML in the display name with screen reader text.
1428              // Instead of using esc_attr(), we strip tags to get closer to a user-friendly string.
1429              $data = 'data-colname="' . wp_strip_all_tags( $column_display_name ) . '"';
1430  
1431              $attributes = "class='$classes' $data";
1432  
1433              if ( 'cb' === $column_name ) {
1434                  echo '<th scope="row" class="check-column">';
1435                  echo $this->column_cb( $item );
1436                  echo '</th>';
1437              } elseif ( method_exists( $this, '_column_' . $column_name ) ) {
1438                  echo call_user_func(
1439                      array( $this, '_column_' . $column_name ),
1440                      $item,
1441                      $classes,
1442                      $data,
1443                      $primary
1444                  );
1445              } elseif ( method_exists( $this, 'column_' . $column_name ) ) {
1446                  echo "<td $attributes>";
1447                  echo call_user_func( array( $this, 'column_' . $column_name ), $item );
1448                  echo $this->handle_row_actions( $item, $column_name, $primary );
1449                  echo '</td>';
1450              } else {
1451                  echo "<td $attributes>";
1452                  echo $this->column_default( $item, $column_name );
1453                  echo $this->handle_row_actions( $item, $column_name, $primary );
1454                  echo '</td>';
1455              }
1456          }
1457      }
1458  
1459      /**
1460       * Generates and display row actions links for the list table.
1461       *
1462       * @since 4.3.0
1463       *
1464       * @param object|array $item        The item being acted upon.
1465       * @param string       $column_name Current column name.
1466       * @param string       $primary     Primary column name.
1467       * @return string The row actions HTML, or an empty string
1468       *                if the current column is not the primary column.
1469       */
1470  	protected function handle_row_actions( $item, $column_name, $primary ) {
1471          return $column_name === $primary ? '<button type="button" class="toggle-row"><span class="screen-reader-text">' . __( 'Show more details' ) . '</span></button>' : '';
1472      }
1473  
1474      /**
1475       * Handles an incoming ajax request (called from admin-ajax.php)
1476       *
1477       * @since 3.1.0
1478       */
1479  	public function ajax_response() {
1480          $this->prepare_items();
1481  
1482          ob_start();
1483          if ( ! empty( $_REQUEST['no_placeholder'] ) ) {
1484              $this->display_rows();
1485          } else {
1486              $this->display_rows_or_placeholder();
1487          }
1488  
1489          $rows = ob_get_clean();
1490  
1491          $response = array( 'rows' => $rows );
1492  
1493          if ( isset( $this->_pagination_args['total_items'] ) ) {
1494              $response['total_items_i18n'] = sprintf(
1495                  /* translators: Number of items. */
1496                  _n( '%s item', '%s items', $this->_pagination_args['total_items'] ),
1497                  number_format_i18n( $this->_pagination_args['total_items'] )
1498              );
1499          }
1500          if ( isset( $this->_pagination_args['total_pages'] ) ) {
1501              $response['total_pages']      = $this->_pagination_args['total_pages'];
1502              $response['total_pages_i18n'] = number_format_i18n( $this->_pagination_args['total_pages'] );
1503          }
1504  
1505          die( wp_json_encode( $response ) );
1506      }
1507  
1508      /**
1509       * Sends required variables to JavaScript land.
1510       *
1511       * @since 3.1.0
1512       */
1513  	public function _js_vars() {
1514          $args = array(
1515              'class'  => get_class( $this ),
1516              'screen' => array(
1517                  'id'   => $this->screen->id,
1518                  'base' => $this->screen->base,
1519              ),
1520          );
1521  
1522          printf( "<script type='text/javascript'>list_args = %s;</script>\n", wp_json_encode( $args ) );
1523      }
1524  }


Generated: Fri Apr 23 01:00:05 2021 Cross-referenced by PHPXref 0.7.1