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Edit File : class-wp-list-table.php \| Size : 51.67 KB
<?php /** * Administration API: WP_List_Table class * * @package WordPress * @subpackage List_Table * @since 3.1.0 / /* * Base class for displaying a list of items in an ajaxified HTML table. * * @since 3.1.0 / #[AllowDynamicProperties] class WP_List_Table { /* * The current list of items. * * @since 3.1.0 * @var array / public $items; /* * Various information about the current table. * * @since 3.1.0 * @var array / protected $_args; /* * Various information needed for displaying the pagination. * * @since 3.1.0 * @var array / protected $_pagination_args = array(); /* * The current screen. * * @since 3.1.0 * @var WP_Screen / protected $screen; /* * Cached bulk actions. * * @since 3.1.0 * @var array / private $_actions; /* * Cached pagination output. * * @since 3.1.0 * @var string / private $_pagination; /* * The view switcher modes. * * @since 4.1.0 * @var array / protected $modes = array(); /* * Stores the value returned by ->get_column_info(). * * @since 4.1.0 * @var array / protected $_column_headers; /* * {@internal Missing Summary} * * @var array / protected $compat_fields = array( '_args', '_pagination_args', 'screen', '_actions', '_pagination' ); /* * {@internal Missing Summary} * * @var array / protected $compat_methods = array( 'set_pagination_args', 'get_views', 'get_bulk_actions', 'bulk_actions', 'row_actions', 'months_dropdown', 'view_switcher', 'comments_bubble', 'get_items_per_page', 'pagination', 'get_sortable_columns', 'get_column_info', 'get_table_classes', 'display_tablenav', 'extra_tablenav', 'single_row_columns', ); /* * Constructor. * * The child class should call this constructor from its own constructor to override * the default $args. * * @since 3.1.0 * * @param array\|string $args { * Array or string of arguments. * * @type string $plural Plural value used for labels and the objects being listed. * This affects things such as CSS class-names and nonces used * in the list table, e.g. 'posts'. Default empty. * @type string $singular Singular label for an object being listed, e.g. 'post'. * Default empty * @type bool $ajax Whether the list table supports Ajax. This includes loading * and sorting data, for example. If true, the class will call * the _js_vars() method in the footer to provide variables * to any scripts handling Ajax events. Default false. * @type string $screen String containing the hook name used to determine the current * screen. If left null, the current screen will be automatically set. * Default null. * } / public function __construct( $args = array() ) { $args = wp_parse_args( $args, array( 'plural' => '', 'singular' => '', 'ajax' => false, 'screen' => null, ) ); $this->screen = convert_to_screen( $args['screen'] ); add_filter( "manage_{$this->screen->id}_columns", array( $this, 'get_columns' ), 0 ); if ( ! $args['plural'] ) { $args['plural'] = $this->screen->base; } $args['plural'] = sanitize_key( $args['plural'] ); $args['singular'] = sanitize_key( $args['singular'] ); $this->_args = $args; if ( $args['ajax'] ) { // wp_enqueue_script( 'list-table' ); add_action( 'admin_footer', array( $this, '_js_vars' ) ); } if ( empty( $this->modes ) ) { $this->modes = array( 'list' => __( 'Compact view' ), 'excerpt' => __( 'Extended view' ), ); } } /* * Makes private properties readable for backward compatibility. * * @since 4.0.0 * @since 6.4.0 Getting a dynamic property is deprecated. * * @param string $name Property to get. * @return mixed Property. / public function __get( $name ) { if ( in_array( $name, $this->compat_fields, true ) ) { return $this->$name; } wp_trigger_error( __METHOD__, "The property `{$name}` is not declared. Getting a dynamic property is " . 'deprecated since version 6.4.0! Instead, declare the property on the class.', E_USER_DEPRECATED ); return null; } /* * Makes private properties settable for backward compatibility. * * @since 4.0.0 * @since 6.4.0 Setting a dynamic property is deprecated. * * @param string $name Property to check if set. * @param mixed $value Property value. / public function __set( $name, $value ) { if ( in_array( $name, $this->compat_fields, true ) ) { $this->$name = $value; return; } wp_trigger_error( __METHOD__, "The property `{$name}` is not declared. Setting a dynamic property is " . 'deprecated since version 6.4.0! Instead, declare the property on the class.', E_USER_DEPRECATED ); } /* * Makes private properties checkable for backward compatibility. * * @since 4.0.0 * @since 6.4.0 Checking a dynamic property is deprecated. * * @param string $name Property to check if set. * @return bool Whether the property is a back-compat property and it is set. / public function __isset( $name ) { if ( in_array( $name, $this->compat_fields, true ) ) { return isset( $this->$name ); } wp_trigger_error( __METHOD__, "The property `{$name}` is not declared. Checking `isset()` on a dynamic property " . 'is deprecated since version 6.4.0! Instead, declare the property on the class.', E_USER_DEPRECATED ); return false; } /* * Makes private properties un-settable for backward compatibility. * * @since 4.0.0 * @since 6.4.0 Unsetting a dynamic property is deprecated. * * @param string $name Property to unset. / public function __unset( $name ) { if ( in_array( $name, $this->compat_fields, true ) ) { unset( $this->$name ); return; } wp_trigger_error( __METHOD__, "A property `{$name}` is not declared. Unsetting a dynamic property is " . 'deprecated since version 6.4.0! Instead, declare the property on the class.', E_USER_DEPRECATED ); } /* * Makes private/protected methods readable for backward compatibility. * * @since 4.0.0 * * @param string $name Method to call. * @param array $arguments Arguments to pass when calling. * @return mixed\|bool Return value of the callback, false otherwise. / public function __call( $name, $arguments ) { if ( in_array( $name, $this->compat_methods, true ) ) { return $this->$name( ...$arguments ); } return false; } /* * Checks the current user's permissions * * @since 3.1.0 * @abstract / public function ajax_user_can() { die( 'function WP_List_Table::ajax_user_can() must be overridden in a subclass.' ); } /* * Prepares the list of items for displaying. * * @uses WP_List_Table::set_pagination_args() * * @since 3.1.0 * @abstract / public function prepare_items() { die( 'function WP_List_Table::prepare_items() must be overridden in a subclass.' ); } /* * Sets all the necessary pagination arguments. * * @since 3.1.0 * * @param array\|string $args Array or string of arguments with information about the pagination. / protected function set_pagination_args( $args ) { $args = wp_parse_args( $args, array( 'total_items' => 0, 'total_pages' => 0, 'per_page' => 0, ) ); if ( ! $args['total_pages'] && $args['per_page'] > 0 ) { $args['total_pages'] = (int) ceil( $args['total_items'] / $args['per_page'] ); } // Redirect if page number is invalid and headers are not already sent. if ( ! headers_sent() && ! wp_doing_ajax() && $args['total_pages'] > 0 && $this->get_pagenum() > $args['total_pages'] ) { wp_redirect( add_query_arg( 'paged', $args['total_pages'] ) ); exit; } $this->_pagination_args = $args; } /* * Access the pagination args. * * @since 3.1.0 * * @param string $key Pagination argument to retrieve. Common values include 'total_items', * 'total_pages', 'per_page', or 'infinite_scroll'. * @return int Number of items that correspond to the given pagination argument. / public function get_pagination_arg( $key ) { if ( 'page' === $key ) { return $this->get_pagenum(); } if ( isset( $this->_pagination_args[ $key ] ) ) { return $this->_pagination_args[ $key ]; } return 0; } /* * Determines whether the table has items to display or not * * @since 3.1.0 * * @return bool / public function has_items() { return ! empty( $this->items ); } /* * Message to be displayed when there are no items * * @since 3.1.0 / public function no_items() { _e( 'No items found.' ); } /* * Displays the search box. * * @since 3.1.0 * * @param string $text The 'submit' button label. * @param string $input_id ID attribute value for the search input field. / public function search_box( $text, $input_id ) { if ( empty( $_REQUEST['s'] ) && ! $this->has_items() ) { return; } $input_id = $input_id . '-search-input'; if ( ! empty( $_REQUEST['orderby'] ) ) { if ( is_array( $_REQUEST['orderby'] ) ) { foreach ( $_REQUEST['orderby'] as $key => $value ) { echo '<input type="hidden" name="orderby[' . esc_attr( $key ) . ']" value="' . esc_attr( $value ) . '" />'; } } else { echo '<input type="hidden" name="orderby" value="' . esc_attr( $_REQUEST['orderby'] ) . '" />'; } } if ( ! empty( $_REQUEST['order'] ) ) { echo '<input type="hidden" name="order" value="' . esc_attr( $_REQUEST['order'] ) . '" />'; } if ( ! empty( $_REQUEST['post_mime_type'] ) ) { echo '<input type="hidden" name="post_mime_type" value="' . esc_attr( $_REQUEST['post_mime_type'] ) . '" />'; } if ( ! empty( $_REQUEST['detached'] ) ) { echo '<input type="hidden" name="detached" value="' . esc_attr( $_REQUEST['detached'] ) . '" />'; } ?> <p class="search-box"> <label class="screen-reader-text" for="<?php echo esc_attr( $input_id ); ?>"><?php echo $text; ?>:</label> <input type="search" id="<?php echo esc_attr( $input_id ); ?>" name="s" value="<?php _admin_search_query(); ?>" /> <?php submit_button( $text, '', '', false, array( 'id' => 'search-submit' ) ); ?> </p> <?php } /* * Generates views links. * * @since 6.1.0 * * @param array $link_data { * An array of link data. * * @type string $url The link URL. * @type string $label The link label. * @type bool $current Optional. Whether this is the currently selected view. * } * @return string[] An array of link markup. Keys match the `$link_data` input array. / protected function get_views_links( $link_data = array() ) { if ( ! is_array( $link_data ) ) { _doing_it_wrong( __METHOD__, sprintf( / translators: %s: The $link_data argument. / __( 'The %s argument must be an array.' ), '<code>$link_data</code>' ), '6.1.0' ); return array( '' ); } $views_links = array(); foreach ( $link_data as $view => $link ) { if ( empty( $link['url'] ) \|\| ! is_string( $link['url'] ) \|\| '' === trim( $link['url'] ) ) { _doing_it_wrong( __METHOD__, sprintf( / translators: %1$s: The argument name. %2$s: The view name. / __( 'The %1$s argument must be a non-empty string for %2$s.' ), '<code>url</code>', '<code>' . esc_html( $view ) . '</code>' ), '6.1.0' ); continue; } if ( empty( $link['label'] ) \|\| ! is_string( $link['label'] ) \|\| '' === trim( $link['label'] ) ) { _doing_it_wrong( __METHOD__, sprintf( / translators: %1$s: The argument name. %2$s: The view name. / __( 'The %1$s argument must be a non-empty string for %2$s.' ), '<code>label</code>', '<code>' . esc_html( $view ) . '</code>' ), '6.1.0' ); continue; } $views_links[ $view ] = sprintf( '<a href="%s"%s>%s</a>', esc_url( $link['url'] ), isset( $link['current'] ) && true === $link['current'] ? ' class="current" aria-current="page"' : '', $link['label'] ); } return $views_links; } /* * Gets the list of views available on this table. * * The format is an associative array: * - `'id' => 'link'` * * @since 3.1.0 * * @return array / protected function get_views() { return array(); } /* * Displays the list of views available on this table. * * @since 3.1.0 / public function views() { $views = $this->get_views(); /* * Filters the list of available list table views. * * The dynamic portion of the hook name, `$this->screen->id`, refers * to the ID of the current screen. * * @since 3.1.0 * * @param string[] $views An array of available list table views. / $views = apply_filters( "views_{$this->screen->id}", $views ); if ( empty( $views ) ) { return; } $this->screen->render_screen_reader_content( 'heading_views' ); echo "<ul class='subsubsub'>\n"; foreach ( $views as $class => $view ) { $views[ $class ] = "\t<li class='$class'>$view"; } echo implode( " \|</li>\n", $views ) . "</li>\n"; echo '</ul>'; } /* * Retrieves the list of bulk actions available for this table. * * The format is an associative array where each element represents either a top level option value and label, or * an array representing an optgroup and its options. * * For a standard option, the array element key is the field value and the array element value is the field label. * * For an optgroup, the array element key is the label and the array element value is an associative array of * options as above. * * Example: * * [ * 'edit' => 'Edit', * 'delete' => 'Delete', * 'Change State' => [ * 'feature' => 'Featured', * 'sale' => 'On Sale', * ] * ] * * @since 3.1.0 * @since 5.6.0 A bulk action can now contain an array of options in order to create an optgroup. * * @return array / protected function get_bulk_actions() { return array(); } /* * Displays the bulk actions dropdown. * * @since 3.1.0 * * @param string $which The location of the bulk actions: Either 'top' or 'bottom'. * This is designated as optional for backward compatibility. / protected function bulk_actions( $which = '' ) { if ( is_null( $this->_actions ) ) { $this->_actions = $this->get_bulk_actions(); /* * Filters the items in the bulk actions menu of the list table. * * The dynamic portion of the hook name, `$this->screen->id`, refers * to the ID of the current screen. * * @since 3.1.0 * @since 5.6.0 A bulk action can now contain an array of options in order to create an optgroup. * * @param array $actions An array of the available bulk actions. / $this->_actions = apply_filters( "bulk_actions-{$this->screen->id}", $this->_actions ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores $two = ''; } else { $two = '2'; } if ( empty( $this->_actions ) ) { return; } echo '<label for="bulk-action-selector-' . esc_attr( $which ) . '" class="screen-reader-text">' . / translators: Hidden accessibility text. / __( 'Select bulk action' ) . '</label>'; echo '<select name="action' . $two . '" id="bulk-action-selector-' . esc_attr( $which ) . "\">\n"; echo '<option value="-1">' . __( 'Bulk actions' ) . "</option>\n"; foreach ( $this->_actions as $key => $value ) { if ( is_array( $value ) ) { echo "\t" . '<optgroup label="' . esc_attr( $key ) . '">' . "\n"; foreach ( $value as $name => $title ) { $class = ( 'edit' === $name ) ? ' class="hide-if-no-js"' : ''; echo "\t\t" . '<option value="' . esc_attr( $name ) . '"' . $class . '>' . $title . "</option>\n"; } echo "\t" . "</optgroup>\n"; } else { $class = ( 'edit' === $key ) ? ' class="hide-if-no-js"' : ''; echo "\t" . '<option value="' . esc_attr( $key ) . '"' . $class . '>' . $value . "</option>\n"; } } echo "</select>\n"; submit_button( __( 'Apply' ), 'action', 'bulk_action', false, array( 'id' => "doaction$two" ) ); echo "\n"; } /* * Gets the current action selected from the bulk actions dropdown. * * @since 3.1.0 * * @return string\|false The action name. False if no action was selected. / public function current_action() { if ( isset( $_REQUEST['filter_action'] ) && ! empty( $_REQUEST['filter_action'] ) ) { return false; } if ( isset( $_REQUEST['action'] ) && '-1' !== $_REQUEST['action'] ) { return $_REQUEST['action']; } return false; } /* * Generates the required HTML for a list of row action links. * * @since 3.1.0 * * @param string[] $actions An array of action links. * @param bool $always_visible Whether the actions should be always visible. * @return string The HTML for the row actions. / protected function row_actions( $actions, $always_visible = false ) { $action_count = count( $actions ); if ( ! $action_count ) { return ''; } $mode = get_user_setting( 'posts_list_mode', 'list' ); if ( 'excerpt' === $mode ) { $always_visible = true; } $output = '<div class="' . ( $always_visible ? 'row-actions visible' : 'row-actions' ) . '">'; $i = 0; foreach ( $actions as $action => $link ) { ++$i; $separator = ( $i < $action_count ) ? ' \| ' : ''; $output .= "<span class='$action'>{$link}{$separator}</span>"; } $output .= '</div>'; $output .= '<button type="button" class="toggle-row"><span class="screen-reader-text">' . / translators: Hidden accessibility text. / __( 'Show more details' ) . '</span></button>'; return $output; } /* * Displays a dropdown for filtering items in the list table by month. * * @since 3.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * @global WP_Locale $wp_locale WordPress date and time locale object. * * @param string $post_type The post type. / protected function months_dropdown( $post_type ) { global $wpdb, $wp_locale; /* * Filters whether to remove the 'Months' drop-down from the post list table. * * @since 4.2.0 * * @param bool $disable Whether to disable the drop-down. Default false. * @param string $post_type The post type. / if ( apply_filters( 'disable_months_dropdown', false, $post_type ) ) { return; } /* * Filters whether to short-circuit performing the months dropdown query. * * @since 5.7.0 * * @param object[]\|false $months 'Months' drop-down results. Default false. * @param string $post_type The post type. / $months = apply_filters( 'pre_months_dropdown_query', false, $post_type ); if ( ! is_array( $months ) ) { $extra_checks = "AND post_status != 'auto-draft'"; if ( ! isset( $_GET['post_status'] ) \|\| 'trash' !== $_GET['post_status'] ) { $extra_checks .= " AND post_status != 'trash'"; } elseif ( isset( $_GET['post_status'] ) ) { $extra_checks = $wpdb->prepare( ' AND post_status = %s', $_GET['post_status'] ); } $months = $wpdb->get_results( $wpdb->prepare( "SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month FROM $wpdb->posts WHERE post_type = %s $extra_checks ORDER BY post_date DESC", $post_type ) ); } /* * Filters the 'Months' drop-down results. * * @since 3.7.0 * * @param object[] $months Array of the months drop-down query results. * @param string $post_type The post type. / $months = apply_filters( 'months_dropdown_results', $months, $post_type ); $month_count = count( $months ); if ( ! $month_count \|\| ( 1 === $month_count && 0 === (int) $months[0]->month ) ) { return; } $selected_month = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0; ?> <label for="filter-by-date" class="screen-reader-text"><?php echo get_post_type_object( $post_type )->labels->filter_by_date; ?></label> <select name="m" id="filter-by-date"> <option<?php selected( $selected_month, 0 ); ?> value="0"><?php _e( 'All dates' ); ?></option> <?php foreach ( $months as $arc_row ) { if ( 0 === (int) $arc_row->year ) { continue; } $month = zeroise( $arc_row->month, 2 ); $year = $arc_row->year; printf( "<option %s value='%s'>%s</option>\n", selected( $selected_month, $year . $month, false ), esc_attr( $year . $month ), / translators: 1: Month name, 2: 4-digit year. / esc_html( sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $month ), $year ) ) ); } ?> </select> <?php } /* * Displays a view switcher. * * @since 3.1.0 * * @param string $current_mode / protected function view_switcher( $current_mode ) { ?> <input type="hidden" name="mode" value="<?php echo esc_attr( $current_mode ); ?>" /> <div class="view-switch"> <?php foreach ( $this->modes as $mode => $title ) { $classes = array( 'view-' . $mode ); $aria_current = ''; if ( $current_mode === $mode ) { $classes[] = 'current'; $aria_current = ' aria-current="page"'; } printf( "<a href='%s' class='%s' id='view-switch-$mode'$aria_current>" . "<span class='screen-reader-text'>%s</span>" . "</a>\n", esc_url( remove_query_arg( 'attachment-filter', add_query_arg( 'mode', $mode ) ) ), implode( ' ', $classes ), $title ); } ?> </div> <?php } /* * Displays a comment count bubble. * * @since 3.1.0 * * @param int $post_id The post ID. * @param int $pending_comments Number of pending comments. / protected function comments_bubble( $post_id, $pending_comments ) { $post_object = get_post( $post_id ); $edit_post_cap = $post_object ? 'edit_post' : 'edit_posts'; if ( ! current_user_can( $edit_post_cap, $post_id ) && ( post_password_required( $post_id ) \|\| ! current_user_can( 'read_post', $post_id ) ) ) { // The user has no access to the post and thus cannot see the comments. return false; } $approved_comments = get_comments_number(); $approved_comments_number = number_format_i18n( $approved_comments ); $pending_comments_number = number_format_i18n( $pending_comments ); $approved_only_phrase = sprintf( / translators: %s: Number of comments. / _n( '%s comment', '%s comments', $approved_comments ), $approved_comments_number ); $approved_phrase = sprintf( / translators: %s: Number of comments. / _n( '%s approved comment', '%s approved comments', $approved_comments ), $approved_comments_number ); $pending_phrase = sprintf( / translators: %s: Number of comments. / _n( '%s pending comment', '%s pending comments', $pending_comments ), $pending_comments_number ); if ( ! $approved_comments && ! $pending_comments ) { // No comments at all. printf( '<span aria-hidden="true">—</span>' . '<span class="screen-reader-text">%s</span>', __( 'No comments' ) ); } elseif ( $approved_comments && 'trash' === get_post_status( $post_id ) ) { // Don't link the comment bubble for a trashed post. printf( '<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>', $approved_comments_number, $pending_comments ? $approved_phrase : $approved_only_phrase ); } elseif ( $approved_comments ) { // Link the comment bubble to approved comments. printf( '<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>', esc_url( add_query_arg( array( 'p' => $post_id, 'comment_status' => 'approved', ), admin_url( 'edit-comments.php' ) ) ), $approved_comments_number, $pending_comments ? $approved_phrase : $approved_only_phrase ); } else { // Don't link the comment bubble when there are no approved comments. printf( '<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>', $approved_comments_number, $pending_comments ? / translators: Hidden accessibility text. / __( 'No approved comments' ) : / translators: Hidden accessibility text. / __( 'No comments' ) ); } if ( $pending_comments ) { printf( '<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>', esc_url( add_query_arg( array( 'p' => $post_id, 'comment_status' => 'moderated', ), admin_url( 'edit-comments.php' ) ) ), $pending_comments_number, $pending_phrase ); } else { printf( '<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>', $pending_comments_number, $approved_comments ? / translators: Hidden accessibility text. / __( 'No pending comments' ) : / translators: Hidden accessibility text. / __( 'No comments' ) ); } } /* * Gets the current page number. * * @since 3.1.0 * * @return int / public function get_pagenum() { $pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0; if ( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] ) { $pagenum = $this->_pagination_args['total_pages']; } return max( 1, $pagenum ); } /* * Gets the number of items to display on a single page. * * @since 3.1.0 * * @param string $option User option name. * @param int $default_value Optional. The number of items to display. Default 20. * @return int / protected function get_items_per_page( $option, $default_value = 20 ) { $per_page = (int) get_user_option( $option ); if ( empty( $per_page ) \|\| $per_page < 1 ) { $per_page = $default_value; } /* * Filters the number of items to be displayed on each page of the list table. * * The dynamic hook name, `$option`, refers to the `per_page` option depending * on the type of list table in use. Possible filter names include: * * - `edit_comments_per_page` * - `sites_network_per_page` * - `site_themes_network_per_page` * - `themes_network_per_page` * - `users_network_per_page` * - `edit_post_per_page` * - `edit_page_per_page` * - `edit_{$post_type}_per_page` * - `edit_post_tag_per_page` * - `edit_category_per_page` * - `edit_{$taxonomy}_per_page` * - `site_users_network_per_page` * - `users_per_page` * * @since 2.9.0 * * @param int $per_page Number of items to be displayed. Default 20. / return (int) apply_filters( "{$option}", $per_page ); } /* * Displays the pagination. * * @since 3.1.0 * * @param string $which The location of the pagination: Either 'top' or 'bottom'. / protected function pagination( $which ) { if ( empty( $this->_pagination_args ) ) { return; } $total_items = $this->_pagination_args['total_items']; $total_pages = $this->_pagination_args['total_pages']; $infinite_scroll = false; if ( isset( $this->_pagination_args['infinite_scroll'] ) ) { $infinite_scroll = $this->_pagination_args['infinite_scroll']; } if ( 'top' === $which && $total_pages > 1 ) { $this->screen->render_screen_reader_content( 'heading_pagination' ); } $output = '<span class="displaying-num">' . sprintf( / translators: %s: Number of items. / _n( '%s item', '%s items', $total_items ), number_format_i18n( $total_items ) ) . '</span>'; $current = $this->get_pagenum(); $removable_query_args = wp_removable_query_args(); $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); $current_url = remove_query_arg( $removable_query_args, $current_url ); $page_links = array(); $total_pages_before = '<span class="paging-input">'; $total_pages_after = '</span></span>'; $disable_first = false; $disable_last = false; $disable_prev = false; $disable_next = false; if ( 1 === $current ) { $disable_first = true; $disable_prev = true; } if ( $total_pages === $current ) { $disable_last = true; $disable_next = true; } if ( $disable_first ) { $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">«</span>'; } else { $page_links[] = sprintf( "<a class='first-page button' href='%s'>" . "<span class='screen-reader-text'>%s</span>" . "<span aria-hidden='true'>%s</span>" . '</a>', esc_url( remove_query_arg( 'paged', $current_url ) ), / translators: Hidden accessibility text. / __( 'First page' ), '«' ); } if ( $disable_prev ) { $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&lsaquo;</span>'; } else { $page_links[] = sprintf( "<a class='prev-page button' href='%s'>" . "<span class='screen-reader-text'>%s</span>" . "<span aria-hidden='true'>%s</span>" . '</a>', esc_url( add_query_arg( 'paged', max( 1, $current - 1 ), $current_url ) ), / translators: Hidden accessibility text. / __( 'Previous page' ), '&lsaquo;' ); } if ( 'bottom' === $which ) { $html_current_page = $current; $total_pages_before = sprintf( '<span class="screen-reader-text">%s</span>' . '<span id="table-paging" class="paging-input">' . '<span class="tablenav-paging-text">', / translators: Hidden accessibility text. / __( 'Current Page' ) ); } else { $html_current_page = sprintf( '<label for="current-page-selector" class="screen-reader-text">%s</label>' . "<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'>", / translators: Hidden accessibility text. / __( 'Current Page' ), $current, strlen( $total_pages ) ); } $html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) ); $page_links[] = $total_pages_before . sprintf( / translators: 1: Current page, 2: Total pages. / _x( '%1$s of %2$s', 'paging' ), $html_current_page, $html_total_pages ) . $total_pages_after; if ( $disable_next ) { $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&rsaquo;</span>'; } else { $page_links[] = sprintf( "<a class='next-page button' href='%s'>" . "<span class='screen-reader-text'>%s</span>" . "<span aria-hidden='true'>%s</span>" . '</a>', esc_url( add_query_arg( 'paged', min( $total_pages, $current + 1 ), $current_url ) ), / translators: Hidden accessibility text. / __( 'Next page' ), '&rsaquo;' ); } if ( $disable_last ) { $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">»</span>'; } else { $page_links[] = sprintf( "<a class='last-page button' href='%s'>" . "<span class='screen-reader-text'>%s</span>" . "<span aria-hidden='true'>%s</span>" . '</a>', esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ), / translators: Hidden accessibility text. / __( 'Last page' ), '»' ); } $pagination_links_class = 'pagination-links'; if ( ! empty( $infinite_scroll ) ) { $pagination_links_class .= ' hide-if-js'; } $output .= "\n<span class='$pagination_links_class'>" . implode( "\n", $page_links ) . '</span>'; if ( $total_pages ) { $page_class = $total_pages < 2 ? ' one-page' : ''; } else { $page_class = ' no-pages'; } $this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>"; echo $this->_pagination; } /* * Gets a list of columns. * * The format is: * - `'internal-name' => 'Title'` * * @since 3.1.0 * @abstract * * @return array / public function get_columns() { die( 'function WP_List_Table::get_columns() must be overridden in a subclass.' ); } /* * Gets a list of sortable columns. * * The format is: * - `'internal-name' => 'orderby'` * - `'internal-name' => array( 'orderby', bool, 'abbr', 'orderby-text', 'initially-sorted-column-order' )` - * - `'internal-name' => array( 'orderby', 'asc' )` - The second element sets the initial sorting order. * - `'internal-name' => array( 'orderby', true )` - The second element makes the initial order descending. * * In the second format, passing true as second parameter will make the initial * sorting order be descending. Following parameters add a short column name to * be used as 'abbr' attribute, a translatable string for the current sorting, * and the initial order for the initial sorted column, 'asc' or 'desc' (default: false). * * @since 3.1.0 * @since 6.3.0 Added 'abbr', 'orderby-text' and 'initially-sorted-column-order'. * * @return array / protected function get_sortable_columns() { return array(); } /* * Gets the name of the default primary column. * * @since 4.3.0 * * @return string Name of the default primary column, in this case, an empty string. / protected function get_default_primary_column_name() { $columns = $this->get_columns(); $column = ''; if ( empty( $columns ) ) { return $column; } / * We need a primary defined so responsive views show something, * so let's fall back to the first non-checkbox column. / foreach ( $columns as $col => $column_name ) { if ( 'cb' === $col ) { continue; } $column = $col; break; } return $column; } /* * Gets the name of the primary column. * * Public wrapper for WP_List_Table::get_default_primary_column_name(). * * @since 4.4.0 * * @return string Name of the default primary column. / public function get_primary_column() { return $this->get_primary_column_name(); } /* * Gets the name of the primary column. * * @since 4.3.0 * * @return string The name of the primary column. / protected function get_primary_column_name() { $columns = get_column_headers( $this->screen ); $default = $this->get_default_primary_column_name(); / * If the primary column doesn't exist, * fall back to the first non-checkbox column. / if ( ! isset( $columns[ $default ] ) ) { $default = self::get_default_primary_column_name(); } /* * Filters the name of the primary column for the current list table. * * @since 4.3.0 * * @param string $default Column name default for the specific list table, e.g. 'name'. * @param string $context Screen ID for specific list table, e.g. 'plugins'. / $column = apply_filters( 'list_table_primary_column', $default, $this->screen->id ); if ( empty( $column ) \|\| ! isset( $columns[ $column ] ) ) { $column = $default; } return $column; } /* * Gets a list of all, hidden, and sortable columns, with filter applied. * * @since 3.1.0 * * @return array / protected function get_column_info() { // $_column_headers is already set / cached. if ( isset( $this->_column_headers ) && is_array( $this->_column_headers ) ) { / * Backward compatibility for `$_column_headers` format prior to WordPress 4.3. * * In WordPress 4.3 the primary column name was added as a fourth item in the * column headers property. This ensures the primary column name is included * in plugins setting the property directly in the three item format. / if ( 4 === count( $this->_column_headers ) ) { return $this->_column_headers; } $column_headers = array( array(), array(), array(), $this->get_primary_column_name() ); foreach ( $this->_column_headers as $key => $value ) { $column_headers[ $key ] = $value; } $this->_column_headers = $column_headers; return $this->_column_headers; } $columns = get_column_headers( $this->screen ); $hidden = get_hidden_columns( $this->screen ); $sortable_columns = $this->get_sortable_columns(); /* * Filters the list table sortable columns for a specific screen. * * The dynamic portion of the hook name, `$this->screen->id`, refers * to the ID of the current screen. * * @since 3.1.0 * * @param array $sortable_columns An array of sortable columns. / $_sortable = apply_filters( "manage_{$this->screen->id}_sortable_columns", $sortable_columns ); $sortable = array(); foreach ( $_sortable as $id => $data ) { if ( empty( $data ) ) { continue; } $data = (array) $data; // Descending initial sorting. if ( ! isset( $data[1] ) ) { $data[1] = false; } // Current sorting translatable string. if ( ! isset( $data[2] ) ) { $data[2] = ''; } // Initial view sorted column and asc/desc order, default: false. if ( ! isset( $data[3] ) ) { $data[3] = false; } // Initial order for the initial sorted column, default: false. if ( ! isset( $data[4] ) ) { $data[4] = false; } $sortable[ $id ] = $data; } $primary = $this->get_primary_column_name(); $this->_column_headers = array( $columns, $hidden, $sortable, $primary ); return $this->_column_headers; } /* * Returns the number of visible columns. * * @since 3.1.0 * * @return int / public function get_column_count() { list ( $columns, $hidden ) = $this->get_column_info(); $hidden = array_intersect( array_keys( $columns ), array_filter( $hidden ) ); return count( $columns ) - count( $hidden ); } /* * Prints column headers, accounting for hidden and sortable columns. * * @since 3.1.0 * * @param bool $with_id Whether to set the ID attribute or not / public function print_column_headers( $with_id = true ) { list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info(); $current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); $current_url = remove_query_arg( 'paged', $current_url ); // When users click on a column header to sort by other columns. if ( isset( $_GET['orderby'] ) ) { $current_orderby = $_GET['orderby']; // In the initial view there's no orderby parameter. } else { $current_orderby = ''; } // Not in the initial view and descending order. if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) { $current_order = 'desc'; } else { // The initial view is not always 'asc', we'll take care of this below. $current_order = 'asc'; } if ( ! empty( $columns['cb'] ) ) { static $cb_counter = 1; $columns['cb'] = '<input id="cb-select-all-' . $cb_counter . '" type="checkbox" /> <label for="cb-select-all-' . $cb_counter . '">' . '<span class="screen-reader-text">' . / translators: Hidden accessibility text. / __( 'Select All' ) . '</span>' . '</label>'; ++$cb_counter; } foreach ( $columns as $column_key => $column_display_name ) { $class = array( 'manage-column', "column-$column_key" ); $aria_sort_attr = ''; $abbr_attr = ''; $order_text = ''; if ( in_array( $column_key, $hidden, true ) ) { $class[] = 'hidden'; } if ( 'cb' === $column_key ) { $class[] = 'check-column'; } elseif ( in_array( $column_key, array( 'posts', 'comments', 'links' ), true ) ) { $class[] = 'num'; } if ( $column_key === $primary ) { $class[] = 'column-primary'; } if ( isset( $sortable[ $column_key ] ) ) { $orderby = isset( $sortable[ $column_key ][0] ) ? $sortable[ $column_key ][0] : ''; $desc_first = isset( $sortable[ $column_key ][1] ) ? $sortable[ $column_key ][1] : false; $abbr = isset( $sortable[ $column_key ][2] ) ? $sortable[ $column_key ][2] : ''; $orderby_text = isset( $sortable[ $column_key ][3] ) ? $sortable[ $column_key ][3] : ''; $initial_order = isset( $sortable[ $column_key ][4] ) ? $sortable[ $column_key ][4] : ''; / * We're in the initial view and there's no $_GET['orderby'] then check if the * initial sorting information is set in the sortable columns and use that. / if ( '' === $current_orderby && $initial_order ) { // Use the initially sorted column $orderby as current orderby. $current_orderby = $orderby; // Use the initially sorted column asc/desc order as initial order. $current_order = $initial_order; } / * True in the initial view when an initial orderby is set via get_sortable_columns() * and true in the sorted views when the actual $_GET['orderby'] is equal to $orderby. / if ( $current_orderby === $orderby ) { // The sorted column. The `aria-sort` attribute must be set only on the sorted column. if ( 'asc' === $current_order ) { $order = 'desc'; $aria_sort_attr = ' aria-sort="ascending"'; } else { $order = 'asc'; $aria_sort_attr = ' aria-sort="descending"'; } $class[] = 'sorted'; $class[] = $current_order; } else { // The other sortable columns. $order = strtolower( $desc_first ); if ( ! in_array( $order, array( 'desc', 'asc' ), true ) ) { $order = $desc_first ? 'desc' : 'asc'; } $class[] = 'sortable'; $class[] = 'desc' === $order ? 'asc' : 'desc'; / translators: Hidden accessibility text. / $asc_text = __( 'Sort ascending.' ); / translators: Hidden accessibility text. / $desc_text = __( 'Sort descending.' ); $order_text = 'asc' === $order ? $asc_text : $desc_text; } if ( '' !== $order_text ) { $order_text = ' <span class="screen-reader-text">' . $order_text . '</span>'; } // Print an 'abbr' attribute if a value is provided via get_sortable_columns(). $abbr_attr = $abbr ? ' abbr="' . esc_attr( $abbr ) . '"' : ''; $column_display_name = sprintf( '<a href="%1$s">' . '<span>%2$s</span>' . '<span class="sorting-indicators">' . '<span class="sorting-indicator asc" aria-hidden="true"></span>' . '<span class="sorting-indicator desc" aria-hidden="true"></span>' . '</span>' . '%3$s' . '</a>', esc_url( add_query_arg( compact( 'orderby', 'order' ), $current_url ) ), $column_display_name, $order_text ); } $tag = ( 'cb' === $column_key ) ? 'td' : 'th'; $scope = ( 'th' === $tag ) ? 'scope="col"' : ''; $id = $with_id ? "id='$column_key'" : ''; if ( ! empty( $class ) ) { $class = "class='" . implode( ' ', $class ) . "'"; } echo "<$tag $scope $id $class $aria_sort_attr $abbr_attr>$column_display_name</$tag>"; } } /* * Print a table description with information about current sorting and order. * * For the table initial view, information about initial orderby and order * should be provided via get_sortable_columns(). * * @since 6.3.0 * @access public / public function print_table_description() { list( $columns, $hidden, $sortable ) = $this->get_column_info(); if ( empty( $sortable ) ) { return; } // When users click on a column header to sort by other columns. if ( isset( $_GET['orderby'] ) ) { $current_orderby = $_GET['orderby']; // In the initial view there's no orderby parameter. } else { $current_orderby = ''; } // Not in the initial view and descending order. if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) { $current_order = 'desc'; } else { // The initial view is not always 'asc', we'll take care of this below. $current_order = 'asc'; } foreach ( array_keys( $columns ) as $column_key ) { if ( isset( $sortable[ $column_key ] ) ) { $orderby = isset( $sortable[ $column_key ][0] ) ? $sortable[ $column_key ][0] : ''; $desc_first = isset( $sortable[ $column_key ][1] ) ? $sortable[ $column_key ][1] : false; $abbr = isset( $sortable[ $column_key ][2] ) ? $sortable[ $column_key ][2] : ''; $orderby_text = isset( $sortable[ $column_key ][3] ) ? $sortable[ $column_key ][3] : ''; $initial_order = isset( $sortable[ $column_key ][4] ) ? $sortable[ $column_key ][4] : ''; if ( ! is_string( $orderby_text ) \|\| '' === $orderby_text ) { return; } / * We're in the initial view and there's no $_GET['orderby'] then check if the * initial sorting information is set in the sortable columns and use that. / if ( '' === $current_orderby && $initial_order ) { // Use the initially sorted column $orderby as current orderby. $current_orderby = $orderby; // Use the initially sorted column asc/desc order as initial order. $current_order = $initial_order; } / * True in the initial view when an initial orderby is set via get_sortable_columns() * and true in the sorted views when the actual $_GET['orderby'] is equal to $orderby. / if ( $current_orderby === $orderby ) { / translators: Hidden accessibility text. / $asc_text = __( 'Ascending.' ); / translators: Hidden accessibility text. / $desc_text = __( 'Descending.' ); $order_text = 'asc' === $current_order ? $asc_text : $desc_text; echo '<caption class="screen-reader-text">' . $orderby_text . ' ' . $order_text . '</caption>'; return; } } } } /* * Displays the table. * * @since 3.1.0 / public function display() { $singular = $this->_args['singular']; $this->display_tablenav( 'top' ); $this->screen->render_screen_reader_content( 'heading_list' ); ?> <table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>"> <?php $this->print_table_description(); ?> <thead> <tr> <?php $this->print_column_headers(); ?> </tr> </thead> <tbody id="the-list" <?php if ( $singular ) { echo " data-wp-lists='list:$singular'"; } ?> > <?php $this->display_rows_or_placeholder(); ?> </tbody> <tfoot> <tr> <?php $this->print_column_headers( false ); ?> </tr> </tfoot> </table> <?php $this->display_tablenav( 'bottom' ); } /* * Gets a list of CSS classes for the WP_List_Table table tag. * * @since 3.1.0 * * @return string[] Array of CSS classes for the table tag. / protected function get_table_classes() { $mode = get_user_setting( 'posts_list_mode', 'list' ); $mode_class = esc_attr( 'table-view-' . $mode ); return array( 'widefat', 'fixed', 'striped', $mode_class, $this->_args['plural'] ); } /* * Generates the table navigation above or below the table * * @since 3.1.0 * @param string $which The location of the navigation: Either 'top' or 'bottom'. / protected function display_tablenav( $which ) { if ( 'top' === $which ) { wp_nonce_field( 'bulk-' . $this->_args['plural'] ); } ?> <div class="tablenav <?php echo esc_attr( $which ); ?>"> <?php if ( $this->has_items() ) : ?> <div class="alignleft actions bulkactions"> <?php $this->bulk_actions( $which ); ?> </div> <?php endif; $this->extra_tablenav( $which ); $this->pagination( $which ); ?> <br class="clear" /> </div> <?php } /* * Displays extra controls between bulk actions and pagination. * * @since 3.1.0 * * @param string $which / protected function extra_tablenav( $which ) {} /* * Generates the tbody element for the list table. * * @since 3.1.0 / public function display_rows_or_placeholder() { if ( $this->has_items() ) { $this->display_rows(); } else { echo '<tr class="no-items"><td class="colspanchange" colspan="' . $this->get_column_count() . '">'; $this->no_items(); echo '</td></tr>'; } } /* * Generates the list table rows. * * @since 3.1.0 / public function display_rows() { foreach ( $this->items as $item ) { $this->single_row( $item ); } } /* * Generates content for a single row of the table. * * @since 3.1.0 * * @param object\|array $item The current item / public function single_row( $item ) { echo '<tr>'; $this->single_row_columns( $item ); echo '</tr>'; } /* * @param object\|array $item * @param string $column_name / protected function column_default( $item, $column_name ) {} /* * @param object\|array $item / protected function column_cb( $item ) {} /* * Generates the columns for a single row of the table. * * @since 3.1.0 * * @param object\|array $item The current item. / protected function single_row_columns( $item ) { list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info(); foreach ( $columns as $column_name => $column_display_name ) { $classes = "$column_name column-$column_name"; if ( $primary === $column_name ) { $classes .= ' has-row-actions column-primary'; } if ( in_array( $column_name, $hidden, true ) ) { $classes .= ' hidden'; } / * Comments column uses HTML in the display name with screen reader text. * Strip tags to get closer to a user-friendly string. / $data = 'data-colname="' . esc_attr( wp_strip_all_tags( $column_display_name ) ) . '"'; $attributes = "class='$classes' $data"; if ( 'cb' === $column_name ) { echo '<th scope="row" class="check-column">'; echo $this->column_cb( $item ); echo '</th>'; } elseif ( method_exists( $this, '_column_' . $column_name ) ) { echo call_user_func( array( $this, '_column_' . $column_name ), $item, $classes, $data, $primary ); } elseif ( method_exists( $this, 'column_' . $column_name ) ) { echo "<td $attributes>"; echo call_user_func( array( $this, 'column_' . $column_name ), $item ); echo $this->handle_row_actions( $item, $column_name, $primary ); echo '</td>'; } else { echo "<td $attributes>"; echo $this->column_default( $item, $column_name ); echo $this->handle_row_actions( $item, $column_name, $primary ); echo '</td>'; } } } /* * Generates and display row actions links for the list table. * * @since 4.3.0 * * @param object\|array $item The item being acted upon. * @param string $column_name Current column name. * @param string $primary Primary column name. * @return string The row actions HTML, or an empty string * if the current column is not the primary column. / protected function handle_row_actions( $item, $column_name, $primary ) { return $column_name === $primary ? '<button type="button" class="toggle-row"><span class="screen-reader-text">' . / translators: Hidden accessibility text. / __( 'Show more details' ) . '</span></button>' : ''; } /* * Handles an incoming ajax request (called from admin-ajax.php) * * @since 3.1.0 / public function ajax_response() { $this->prepare_items(); ob_start(); if ( ! empty( $_REQUEST['no_placeholder'] ) ) { $this->display_rows(); } else { $this->display_rows_or_placeholder(); } $rows = ob_get_clean(); $response = array( 'rows' => $rows ); if ( isset( $this->_pagination_args['total_items'] ) ) { $response['total_items_i18n'] = sprintf( / translators: Number of items. / _n( '%s item', '%s items', $this->_pagination_args['total_items'] ), number_format_i18n( $this->_pagination_args['total_items'] ) ); } if ( isset( $this->_pagination_args['total_pages'] ) ) { $response['total_pages'] = $this->_pagination_args['total_pages']; $response['total_pages_i18n'] = number_format_i18n( $this->_pagination_args['total_pages'] ); } die( wp_json_encode( $response ) ); } /* * Sends required variables to JavaScript land. * * @since 3.1.0 */ public function _js_vars() { $args = array( 'class' => get_class( $this ), 'screen' => array( 'id' => $this->screen->id, 'base' => $this->screen->base, ), ); printf( "<script type='text/javascript'>list_args = %s;</script>\n", wp_json_encode( $args ) ); } } Back

Edit File : class-wp-list-table.php | Size : 51.67 KB

<?php
/**
 * Administration API: WP_List_Table class
 *
 * @package WordPress
 * @subpackage List_Table
 * @since 3.1.0
 */

/**
 * Base class for displaying a list of items in an ajaxified HTML table.
 *
 * @since 3.1.0
 */
#[AllowDynamicProperties]
class WP_List_Table {

/**
	 * The current list of items.
	 *
	 * @since 3.1.0
	 * @var array
	 */
	public $items;

/**
	 * Various information about the current table.
	 *
	 * @since 3.1.0
	 * @var array
	 */
	protected $_args;

/**
	 * Various information needed for displaying the pagination.
	 *
	 * @since 3.1.0
	 * @var array
	 */
	protected $_pagination_args = array();

/**
	 * The current screen.
	 *
	 * @since 3.1.0
	 * @var WP_Screen
	 */
	protected $screen;

/**
	 * Cached bulk actions.
	 *
	 * @since 3.1.0
	 * @var array
	 */
	private $_actions;

/**
	 * Cached pagination output.
	 *
	 * @since 3.1.0
	 * @var string
	 */
	private $_pagination;

/**
	 * The view switcher modes.
	 *
	 * @since 4.1.0
	 * @var array
	 */
	protected $modes = array();

/**
	 * Stores the value returned by ->get_column_info().
	 *
	 * @since 4.1.0
	 * @var array
	 */
	protected $_column_headers;

/**
	 * {@internal Missing Summary}
	 *
	 * @var array
	 */
	protected $compat_fields = array( '_args', '_pagination_args', 'screen', '_actions', '_pagination' );

/**
	 * {@internal Missing Summary}
	 *
	 * @var array
	 */
	protected $compat_methods = array(
		'set_pagination_args',
		'get_views',
		'get_bulk_actions',
		'bulk_actions',
		'row_actions',
		'months_dropdown',
		'view_switcher',
		'comments_bubble',
		'get_items_per_page',
		'pagination',
		'get_sortable_columns',
		'get_column_info',
		'get_table_classes',
		'display_tablenav',
		'extra_tablenav',
		'single_row_columns',
	);

/**
	 * Constructor.
	 *
	 * The child class should call this constructor from its own constructor to override
	 * the default $args.
	 *
	 * @since 3.1.0
	 *
	 * @param array|string $args {
	 *     Array or string of arguments.
	 *
	 *     @type string $plural   Plural value used for labels and the objects being listed.
	 *                            This affects things such as CSS class-names and nonces used
	 *                            in the list table, e.g. 'posts'. Default empty.
	 *     @type string $singular Singular label for an object being listed, e.g. 'post'.
	 *                            Default empty
	 *     @type bool   $ajax     Whether the list table supports Ajax. This includes loading
	 *                            and sorting data, for example. If true, the class will call
	 *                            the _js_vars() method in the footer to provide variables
	 *                            to any scripts handling Ajax events. Default false.
	 *     @type string $screen   String containing the hook name used to determine the current
	 *                            screen. If left null, the current screen will be automatically set.
	 *                            Default null.
	 * }
	 */
	public function __construct( $args = array() ) {
		$args = wp_parse_args(
			$args,
			array(
				'plural'   => '',
				'singular' => '',
				'ajax'     => false,
				'screen'   => null,
			)
		);

$this->screen = convert_to_screen( $args['screen'] );

add_filter( "manage_{$this->screen->id}_columns", array( $this, 'get_columns' ), 0 );

if ( ! $args['plural'] ) {
			$args['plural'] = $this->screen->base;
		}

$args['plural']   = sanitize_key( $args['plural'] );
		$args['singular'] = sanitize_key( $args['singular'] );

$this->_args = $args;

if ( $args['ajax'] ) {
			// wp_enqueue_script( 'list-table' );
			add_action( 'admin_footer', array( $this, '_js_vars' ) );
		}

if ( empty( $this->modes ) ) {
			$this->modes = array(
				'list'    => __( 'Compact view' ),
				'excerpt' => __( 'Extended view' ),
			);
		}
	}

/**
	 * Makes private properties readable for backward compatibility.
	 *
	 * @since 4.0.0
	 * @since 6.4.0 Getting a dynamic property is deprecated.
	 *
	 * @param string $name Property to get.
	 * @return mixed Property.
	 */
	public function __get( $name ) {
		if ( in_array( $name, $this->compat_fields, true ) ) {
			return $this->$name;
		}

wp_trigger_error(
			__METHOD__,
			"The property `{$name}` is not declared. Getting a dynamic property is " .
			'deprecated since version 6.4.0! Instead, declare the property on the class.',
			E_USER_DEPRECATED
		);
		return null;
	}

/**
	 * Makes private properties settable for backward compatibility.
	 *
	 * @since 4.0.0
	 * @since 6.4.0 Setting a dynamic property is deprecated.
	 *
	 * @param string $name  Property to check if set.
	 * @param mixed  $value Property value.
	 */
	public function __set( $name, $value ) {
		if ( in_array( $name, $this->compat_fields, true ) ) {
			$this->$name = $value;
			return;
		}

wp_trigger_error(
			__METHOD__,
			"The property `{$name}` is not declared. Setting a dynamic property is " .
			'deprecated since version 6.4.0! Instead, declare the property on the class.',
			E_USER_DEPRECATED
		);
	}

/**
	 * Makes private properties checkable for backward compatibility.
	 *
	 * @since 4.0.0
	 * @since 6.4.0 Checking a dynamic property is deprecated.
	 *
	 * @param string $name Property to check if set.
	 * @return bool Whether the property is a back-compat property and it is set.
	 */
	public function __isset( $name ) {
		if ( in_array( $name, $this->compat_fields, true ) ) {
			return isset( $this->$name );
		}

wp_trigger_error(
			__METHOD__,
			"The property `{$name}` is not declared. Checking `isset()` on a dynamic property " .
			'is deprecated since version 6.4.0! Instead, declare the property on the class.',
			E_USER_DEPRECATED
		);
		return false;
	}

/**
	 * Makes private properties un-settable for backward compatibility.
	 *
	 * @since 4.0.0
	 * @since 6.4.0 Unsetting a dynamic property is deprecated.
	 *
	 * @param string $name Property to unset.
	 */
	public function __unset( $name ) {
		if ( in_array( $name, $this->compat_fields, true ) ) {
			unset( $this->$name );
			return;
		}

wp_trigger_error(
			__METHOD__,
			"A property `{$name}` is not declared. Unsetting a dynamic property is " .
			'deprecated since version 6.4.0! Instead, declare the property on the class.',
			E_USER_DEPRECATED
		);
	}

/**
	 * Makes private/protected methods readable for backward compatibility.
	 *
	 * @since 4.0.0
	 *
	 * @param string $name      Method to call.
	 * @param array  $arguments Arguments to pass when calling.
	 * @return mixed|bool Return value of the callback, false otherwise.
	 */
	public function __call( $name, $arguments ) {
		if ( in_array( $name, $this->compat_methods, true ) ) {
			return $this->$name( ...$arguments );
		}
		return false;
	}

/**
	 * Checks the current user's permissions
	 *
	 * @since 3.1.0
	 * @abstract
	 */
	public function ajax_user_can() {
		die( 'function WP_List_Table::ajax_user_can() must be overridden in a subclass.' );
	}

/**
	 * Prepares the list of items for displaying.
	 *
	 * @uses WP_List_Table::set_pagination_args()
	 *
	 * @since 3.1.0
	 * @abstract
	 */
	public function prepare_items() {
		die( 'function WP_List_Table::prepare_items() must be overridden in a subclass.' );
	}

/**
	 * Sets all the necessary pagination arguments.
	 *
	 * @since 3.1.0
	 *
	 * @param array|string $args Array or string of arguments with information about the pagination.
	 */
	protected function set_pagination_args( $args ) {
		$args = wp_parse_args(
			$args,
			array(
				'total_items' => 0,
				'total_pages' => 0,
				'per_page'    => 0,
			)
		);

if ( ! $args['total_pages'] && $args['per_page'] > 0 ) {
			$args['total_pages'] = (int) ceil( $args['total_items'] / $args['per_page'] );
		}

// Redirect if page number is invalid and headers are not already sent.
		if ( ! headers_sent() && ! wp_doing_ajax() && $args['total_pages'] > 0 && $this->get_pagenum() > $args['total_pages'] ) {
			wp_redirect( add_query_arg( 'paged', $args['total_pages'] ) );
			exit;
		}

$this->_pagination_args = $args;
	}

/**
	 * Access the pagination args.
	 *
	 * @since 3.1.0
	 *
	 * @param string $key Pagination argument to retrieve. Common values include 'total_items',
	 *                    'total_pages', 'per_page', or 'infinite_scroll'.
	 * @return int Number of items that correspond to the given pagination argument.
	 */
	public function get_pagination_arg( $key ) {
		if ( 'page' === $key ) {
			return $this->get_pagenum();
		}

if ( isset( $this->_pagination_args[ $key ] ) ) {
			return $this->_pagination_args[ $key ];
		}

return 0;
	}

/**
	 * Determines whether the table has items to display or not
	 *
	 * @since 3.1.0
	 *
	 * @return bool
	 */
	public function has_items() {
		return ! empty( $this->items );
	}

/**
	 * Message to be displayed when there are no items
	 *
	 * @since 3.1.0
	 */
	public function no_items() {
		_e( 'No items found.' );
	}

/**
	 * Displays the search box.
	 *
	 * @since 3.1.0
	 *
	 * @param string $text     The 'submit' button label.
	 * @param string $input_id ID attribute value for the search input field.
	 */
	public function search_box( $text, $input_id ) {
		if ( empty( $_REQUEST['s'] ) && ! $this->has_items() ) {
			return;
		}

$input_id = $input_id . '-search-input';

if ( ! empty( $_REQUEST['orderby'] ) ) {
			if ( is_array( $_REQUEST['orderby'] ) ) {
				foreach ( $_REQUEST['orderby'] as $key => $value ) {
					echo '<input type="hidden" name="orderby[' . esc_attr( $key ) . ']" value="' . esc_attr( $value ) . '" />';
				}
			} else {
				echo '<input type="hidden" name="orderby" value="' . esc_attr( $_REQUEST['orderby'] ) . '" />';
			}
		}
		if ( ! empty( $_REQUEST['order'] ) ) {
			echo '<input type="hidden" name="order" value="' . esc_attr( $_REQUEST['order'] ) . '" />';
		}
		if ( ! empty( $_REQUEST['post_mime_type'] ) ) {
			echo '<input type="hidden" name="post_mime_type" value="' . esc_attr( $_REQUEST['post_mime_type'] ) . '" />';
		}
		if ( ! empty( $_REQUEST['detached'] ) ) {
			echo '<input type="hidden" name="detached" value="' . esc_attr( $_REQUEST['detached'] ) . '" />';
		}
		?>
<p class="search-box">
	<label class="screen-reader-text" for="<?php echo esc_attr( $input_id ); ?>"><?php echo $text; ?>:</label>
	<input type="search" id="<?php echo esc_attr( $input_id ); ?>" name="s" value="<?php _admin_search_query(); ?>" />
		<?php submit_button( $text, '', '', false, array( 'id' => 'search-submit' ) ); ?>
</p>
		<?php
	}

/**
	 * Generates views links.
	 *
	 * @since 6.1.0
	 *
	 * @param array $link_data {
	 *     An array of link data.
	 *
	 *     @type string $url     The link URL.
	 *     @type string $label   The link label.
	 *     @type bool   $current Optional. Whether this is the currently selected view.
	 * }
	 * @return string[] An array of link markup. Keys match the `$link_data` input array.
	 */
	protected function get_views_links( $link_data = array() ) {
		if ( ! is_array( $link_data ) ) {
			_doing_it_wrong(
				__METHOD__,
				sprintf(
					/* translators: %s: The $link_data argument. */
					__( 'The %s argument must be an array.' ),
					'<code>$link_data</code>'
				),
				'6.1.0'
			);

return array( '' );
		}

$views_links = array();

foreach ( $link_data as $view => $link ) {
			if ( empty( $link['url'] ) || ! is_string( $link['url'] ) || '' === trim( $link['url'] ) ) {
				_doing_it_wrong(
					__METHOD__,
					sprintf(
						/* translators: %1$s: The argument name. %2$s: The view name. */
						__( 'The %1$s argument must be a non-empty string for %2$s.' ),
						'<code>url</code>',
						'<code>' . esc_html( $view ) . '</code>'
					),
					'6.1.0'
				);

continue;
			}

if ( empty( $link['label'] ) || ! is_string( $link['label'] ) || '' === trim( $link['label'] ) ) {
				_doing_it_wrong(
					__METHOD__,
					sprintf(
						/* translators: %1$s: The argument name. %2$s: The view name. */
						__( 'The %1$s argument must be a non-empty string for %2$s.' ),
						'<code>label</code>',
						'<code>' . esc_html( $view ) . '</code>'
					),
					'6.1.0'
				);

continue;
			}

$views_links[ $view ] = sprintf(
				'<a href="%s"%s>%s</a>',
				esc_url( $link['url'] ),
				isset( $link['current'] ) && true === $link['current'] ? ' class="current" aria-current="page"' : '',
				$link['label']
			);
		}

return $views_links;
	}

/**
	 * Gets the list of views available on this table.
	 *
	 * The format is an associative array:
	 * - `'id' => 'link'`
	 *
	 * @since 3.1.0
	 *
	 * @return array
	 */
	protected function get_views() {
		return array();
	}

/**
	 * Displays the list of views available on this table.
	 *
	 * @since 3.1.0
	 */
	public function views() {
		$views = $this->get_views();
		/**
		 * Filters the list of available list table views.
		 *
		 * The dynamic portion of the hook name, `$this->screen->id`, refers
		 * to the ID of the current screen.
		 *
		 * @since 3.1.0
		 *
		 * @param string[] $views An array of available list table views.
		 */
		$views = apply_filters( "views_{$this->screen->id}", $views );

if ( empty( $views ) ) {
			return;
		}

$this->screen->render_screen_reader_content( 'heading_views' );

echo "<ul class='subsubsub'>\n";
		foreach ( $views as $class => $view ) {
			$views[ $class ] = "\t<li class='$class'>$view";
		}
		echo implode( " |</li>\n", $views ) . "</li>\n";
		echo '</ul>';
	}

/**
	 * Retrieves the list of bulk actions available for this table.
	 *
	 * The format is an associative array where each element represents either a top level option value and label, or
	 * an array representing an optgroup and its options.
	 *
	 * For a standard option, the array element key is the field value and the array element value is the field label.
	 *
	 * For an optgroup, the array element key is the label and the array element value is an associative array of
	 * options as above.
	 *
	 * Example:
	 *
	 *     [
	 *         'edit'         => 'Edit',
	 *         'delete'       => 'Delete',
	 *         'Change State' => [
	 *             'feature' => 'Featured',
	 *             'sale'    => 'On Sale',
	 *         ]
	 *     ]
	 *
	 * @since 3.1.0
	 * @since 5.6.0 A bulk action can now contain an array of options in order to create an optgroup.
	 *
	 * @return array
	 */
	protected function get_bulk_actions() {
		return array();
	}

/**
	 * Displays the bulk actions dropdown.
	 *
	 * @since 3.1.0
	 *
	 * @param string $which The location of the bulk actions: Either 'top' or 'bottom'.
	 *                      This is designated as optional for backward compatibility.
	 */
	protected function bulk_actions( $which = '' ) {
		if ( is_null( $this->_actions ) ) {
			$this->_actions = $this->get_bulk_actions();

/**
			 * Filters the items in the bulk actions menu of the list table.
			 *
			 * The dynamic portion of the hook name, `$this->screen->id`, refers
			 * to the ID of the current screen.
			 *
			 * @since 3.1.0
			 * @since 5.6.0 A bulk action can now contain an array of options in order to create an optgroup.
			 *
			 * @param array $actions An array of the available bulk actions.
			 */
			$this->_actions = apply_filters( "bulk_actions-{$this->screen->id}", $this->_actions ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

$two = '';
		} else {
			$two = '2';
		}

if ( empty( $this->_actions ) ) {
			return;
		}

echo '<label for="bulk-action-selector-' . esc_attr( $which ) . '" class="screen-reader-text">' .
			/* translators: Hidden accessibility text. */
			__( 'Select bulk action' ) .
		'</label>';
		echo '<select name="action' . $two . '" id="bulk-action-selector-' . esc_attr( $which ) . "\">\n";
		echo '<option value="-1">' . __( 'Bulk actions' ) . "</option>\n";

foreach ( $this->_actions as $key => $value ) {
			if ( is_array( $value ) ) {
				echo "\t" . '<optgroup label="' . esc_attr( $key ) . '">' . "\n";

foreach ( $value as $name => $title ) {
					$class = ( 'edit' === $name ) ? ' class="hide-if-no-js"' : '';

echo "\t\t" . '<option value="' . esc_attr( $name ) . '"' . $class . '>' . $title . "</option>\n";
				}
				echo "\t" . "</optgroup>\n";
			} else {
				$class = ( 'edit' === $key ) ? ' class="hide-if-no-js"' : '';

echo "\t" . '<option value="' . esc_attr( $key ) . '"' . $class . '>' . $value . "</option>\n";
			}
		}

echo "</select>\n";

submit_button( __( 'Apply' ), 'action', 'bulk_action', false, array( 'id' => "doaction$two" ) );
		echo "\n";
	}

/**
	 * Gets the current action selected from the bulk actions dropdown.
	 *
	 * @since 3.1.0
	 *
	 * @return string|false The action name. False if no action was selected.
	 */
	public function current_action() {
		if ( isset( $_REQUEST['filter_action'] ) && ! empty( $_REQUEST['filter_action'] ) ) {
			return false;
		}

if ( isset( $_REQUEST['action'] ) && '-1' !== $_REQUEST['action'] ) {
			return $_REQUEST['action'];
		}

return false;
	}

/**
	 * Generates the required HTML for a list of row action links.
	 *
	 * @since 3.1.0
	 *
	 * @param string[] $actions        An array of action links.
	 * @param bool     $always_visible Whether the actions should be always visible.
	 * @return string The HTML for the row actions.
	 */
	protected function row_actions( $actions, $always_visible = false ) {
		$action_count = count( $actions );

if ( ! $action_count ) {
			return '';
		}

$mode = get_user_setting( 'posts_list_mode', 'list' );

if ( 'excerpt' === $mode ) {
			$always_visible = true;
		}

$output = '<div class="' . ( $always_visible ? 'row-actions visible' : 'row-actions' ) . '">';

$i = 0;

foreach ( $actions as $action => $link ) {
			++$i;

$separator = ( $i < $action_count ) ? ' | ' : '';

$output .= "<span class='$action'>{$link}{$separator}</span>";
		}

$output .= '</div>';

$output .= '<button type="button" class="toggle-row"><span class="screen-reader-text">' .
			/* translators: Hidden accessibility text. */
			__( 'Show more details' ) .
		'</span></button>';

return $output;
	}

/**
	 * Displays a dropdown for filtering items in the list table by month.
	 *
	 * @since 3.1.0
	 *
	 * @global wpdb      $wpdb      WordPress database abstraction object.
	 * @global WP_Locale $wp_locale WordPress date and time locale object.
	 *
	 * @param string $post_type The post type.
	 */
	protected function months_dropdown( $post_type ) {
		global $wpdb, $wp_locale;

/**
		 * Filters whether to remove the 'Months' drop-down from the post list table.
		 *
		 * @since 4.2.0
		 *
		 * @param bool   $disable   Whether to disable the drop-down. Default false.
		 * @param string $post_type The post type.
		 */
		if ( apply_filters( 'disable_months_dropdown', false, $post_type ) ) {
			return;
		}

/**
		 * Filters whether to short-circuit performing the months dropdown query.
		 *
		 * @since 5.7.0
		 *
		 * @param object[]|false $months   'Months' drop-down results. Default false.
		 * @param string         $post_type The post type.
		 */
		$months = apply_filters( 'pre_months_dropdown_query', false, $post_type );

if ( ! is_array( $months ) ) {
			$extra_checks = "AND post_status != 'auto-draft'";
			if ( ! isset( $_GET['post_status'] ) || 'trash' !== $_GET['post_status'] ) {
				$extra_checks .= " AND post_status != 'trash'";
			} elseif ( isset( $_GET['post_status'] ) ) {
				$extra_checks = $wpdb->prepare( ' AND post_status = %s', $_GET['post_status'] );
			}

$months = $wpdb->get_results(
				$wpdb->prepare(
					"SELECT DISTINCT YEAR( post_date ) AS year, MONTH( post_date ) AS month
					FROM $wpdb->posts
					WHERE post_type = %s
					$extra_checks
					ORDER BY post_date DESC",
					$post_type
				)
			);
		}

/**
		 * Filters the 'Months' drop-down results.
		 *
		 * @since 3.7.0
		 *
		 * @param object[] $months    Array of the months drop-down query results.
		 * @param string   $post_type The post type.
		 */
		$months = apply_filters( 'months_dropdown_results', $months, $post_type );

$month_count = count( $months );

if ( ! $month_count || ( 1 === $month_count && 0 === (int) $months[0]->month ) ) {
			return;
		}

$selected_month = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0;
		?>
		<label for="filter-by-date" class="screen-reader-text"><?php echo get_post_type_object( $post_type )->labels->filter_by_date; ?></label>
		<select name="m" id="filter-by-date">
			<option<?php selected( $selected_month, 0 ); ?> value="0"><?php _e( 'All dates' ); ?></option>
		<?php
		foreach ( $months as $arc_row ) {
			if ( 0 === (int) $arc_row->year ) {
				continue;
			}

$month = zeroise( $arc_row->month, 2 );
			$year  = $arc_row->year;

printf(
				"<option %s value='%s'>%s</option>\n",
				selected( $selected_month, $year . $month, false ),
				esc_attr( $year . $month ),
				/* translators: 1: Month name, 2: 4-digit year. */
				esc_html( sprintf( __( '%1$s %2$d' ), $wp_locale->get_month( $month ), $year ) )
			);
		}
		?>
		</select>
		<?php
	}

/**
	 * Displays a view switcher.
	 *
	 * @since 3.1.0
	 *
	 * @param string $current_mode
	 */
	protected function view_switcher( $current_mode ) {
		?>
		<input type="hidden" name="mode" value="<?php echo esc_attr( $current_mode ); ?>" />
		<div class="view-switch">
		<?php
		foreach ( $this->modes as $mode => $title ) {
			$classes      = array( 'view-' . $mode );
			$aria_current = '';

if ( $current_mode === $mode ) {
				$classes[]    = 'current';
				$aria_current = ' aria-current="page"';
			}

printf(
				"<a href='%s' class='%s' id='view-switch-$mode'$aria_current>" .
					"<span class='screen-reader-text'>%s</span>" .
				"</a>\n",
				esc_url( remove_query_arg( 'attachment-filter', add_query_arg( 'mode', $mode ) ) ),
				implode( ' ', $classes ),
				$title
			);
		}
		?>
		</div>
		<?php
	}

/**
	 * Displays a comment count bubble.
	 *
	 * @since 3.1.0
	 *
	 * @param int $post_id          The post ID.
	 * @param int $pending_comments Number of pending comments.
	 */
	protected function comments_bubble( $post_id, $pending_comments ) {
		$post_object   = get_post( $post_id );
		$edit_post_cap = $post_object ? 'edit_post' : 'edit_posts';

if ( ! current_user_can( $edit_post_cap, $post_id )
			&& ( post_password_required( $post_id )
				|| ! current_user_can( 'read_post', $post_id ) )
		) {
			// The user has no access to the post and thus cannot see the comments.
			return false;
		}

$approved_comments = get_comments_number();

$approved_comments_number = number_format_i18n( $approved_comments );
		$pending_comments_number  = number_format_i18n( $pending_comments );

$approved_only_phrase = sprintf(
			/* translators: %s: Number of comments. */
			_n( '%s comment', '%s comments', $approved_comments ),
			$approved_comments_number
		);

$approved_phrase = sprintf(
			/* translators: %s: Number of comments. */
			_n( '%s approved comment', '%s approved comments', $approved_comments ),
			$approved_comments_number
		);

$pending_phrase = sprintf(
			/* translators: %s: Number of comments. */
			_n( '%s pending comment', '%s pending comments', $pending_comments ),
			$pending_comments_number
		);

if ( ! $approved_comments && ! $pending_comments ) {
			// No comments at all.
			printf(
				'<span aria-hidden="true">&#8212;</span>' .
				'<span class="screen-reader-text">%s</span>',
				__( 'No comments' )
			);
		} elseif ( $approved_comments && 'trash' === get_post_status( $post_id ) ) {
			// Don't link the comment bubble for a trashed post.
			printf(
				'<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>',
				$approved_comments_number,
				$pending_comments ? $approved_phrase : $approved_only_phrase
			);
		} elseif ( $approved_comments ) {
			// Link the comment bubble to approved comments.
			printf(
				'<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>',
				esc_url(
					add_query_arg(
						array(
							'p'              => $post_id,
							'comment_status' => 'approved',
						),
						admin_url( 'edit-comments.php' )
					)
				),
				$approved_comments_number,
				$pending_comments ? $approved_phrase : $approved_only_phrase
			);
		} else {
			// Don't link the comment bubble when there are no approved comments.
			printf(
				'<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>',
				$approved_comments_number,
				$pending_comments ?
				/* translators: Hidden accessibility text. */
				__( 'No approved comments' ) :
				/* translators: Hidden accessibility text. */
				__( 'No comments' )
			);
		}

if ( $pending_comments ) {
			printf(
				'<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>',
				esc_url(
					add_query_arg(
						array(
							'p'              => $post_id,
							'comment_status' => 'moderated',
						),
						admin_url( 'edit-comments.php' )
					)
				),
				$pending_comments_number,
				$pending_phrase
			);
		} else {
			printf(
				'<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>',
				$pending_comments_number,
				$approved_comments ?
				/* translators: Hidden accessibility text. */
				__( 'No pending comments' ) :
				/* translators: Hidden accessibility text. */
				__( 'No comments' )
			);
		}
	}

/**
	 * Gets the current page number.
	 *
	 * @since 3.1.0
	 *
	 * @return int
	 */
	public function get_pagenum() {
		$pagenum = isset( $_REQUEST['paged'] ) ? absint( $_REQUEST['paged'] ) : 0;

if ( isset( $this->_pagination_args['total_pages'] ) && $pagenum > $this->_pagination_args['total_pages'] ) {
			$pagenum = $this->_pagination_args['total_pages'];
		}

return max( 1, $pagenum );
	}

/**
	 * Gets the number of items to display on a single page.
	 *
	 * @since 3.1.0
	 *
	 * @param string $option        User option name.
	 * @param int    $default_value Optional. The number of items to display. Default 20.
	 * @return int
	 */
	protected function get_items_per_page( $option, $default_value = 20 ) {
		$per_page = (int) get_user_option( $option );
		if ( empty( $per_page ) || $per_page < 1 ) {
			$per_page = $default_value;
		}

/**
		 * Filters the number of items to be displayed on each page of the list table.
		 *
		 * The dynamic hook name, `$option`, refers to the `per_page` option depending
		 * on the type of list table in use. Possible filter names include:
		 *
		 *  - `edit_comments_per_page`
		 *  - `sites_network_per_page`
		 *  - `site_themes_network_per_page`
		 *  - `themes_network_per_page`
		 *  - `users_network_per_page`
		 *  - `edit_post_per_page`
		 *  - `edit_page_per_page`
		 *  - `edit_{$post_type}_per_page`
		 *  - `edit_post_tag_per_page`
		 *  - `edit_category_per_page`
		 *  - `edit_{$taxonomy}_per_page`
		 *  - `site_users_network_per_page`
		 *  - `users_per_page`
		 *
		 * @since 2.9.0
		 *
		 * @param int $per_page Number of items to be displayed. Default 20.
		 */
		return (int) apply_filters( "{$option}", $per_page );
	}

/**
	 * Displays the pagination.
	 *
	 * @since 3.1.0
	 *
	 * @param string $which The location of the pagination: Either 'top' or 'bottom'.
	 */
	protected function pagination( $which ) {
		if ( empty( $this->_pagination_args ) ) {
			return;
		}

$total_items     = $this->_pagination_args['total_items'];
		$total_pages     = $this->_pagination_args['total_pages'];
		$infinite_scroll = false;
		if ( isset( $this->_pagination_args['infinite_scroll'] ) ) {
			$infinite_scroll = $this->_pagination_args['infinite_scroll'];
		}

if ( 'top' === $which && $total_pages > 1 ) {
			$this->screen->render_screen_reader_content( 'heading_pagination' );
		}

$output = '<span class="displaying-num">' . sprintf(
			/* translators: %s: Number of items. */
			_n( '%s item', '%s items', $total_items ),
			number_format_i18n( $total_items )
		) . '</span>';

$current              = $this->get_pagenum();
		$removable_query_args = wp_removable_query_args();

$current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );

$current_url = remove_query_arg( $removable_query_args, $current_url );

$page_links = array();

$total_pages_before = '<span class="paging-input">';
		$total_pages_after  = '</span></span>';

$disable_first = false;
		$disable_last  = false;
		$disable_prev  = false;
		$disable_next  = false;

if ( 1 === $current ) {
			$disable_first = true;
			$disable_prev  = true;
		}
		if ( $total_pages === $current ) {
			$disable_last = true;
			$disable_next = true;
		}

if ( $disable_first ) {
			$page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&laquo;</span>';
		} else {
			$page_links[] = sprintf(
				"<a class='first-page button' href='%s'>" .
					"<span class='screen-reader-text'>%s</span>" .
					"<span aria-hidden='true'>%s</span>" .
				'</a>',
				esc_url( remove_query_arg( 'paged', $current_url ) ),
				/* translators: Hidden accessibility text. */
				__( 'First page' ),
				'&laquo;'
			);
		}

if ( $disable_prev ) {
			$page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&lsaquo;</span>';
		} else {
			$page_links[] = sprintf(
				"<a class='prev-page button' href='%s'>" .
					"<span class='screen-reader-text'>%s</span>" .
					"<span aria-hidden='true'>%s</span>" .
				'</a>',
				esc_url( add_query_arg( 'paged', max( 1, $current - 1 ), $current_url ) ),
				/* translators: Hidden accessibility text. */
				__( 'Previous page' ),
				'&lsaquo;'
			);
		}

if ( 'bottom' === $which ) {
			$html_current_page  = $current;
			$total_pages_before = sprintf(
				'<span class="screen-reader-text">%s</span>' .
				'<span id="table-paging" class="paging-input">' .
				'<span class="tablenav-paging-text">',
				/* translators: Hidden accessibility text. */
				__( 'Current Page' )
			);
		} else {
			$html_current_page = sprintf(
				'<label for="current-page-selector" class="screen-reader-text">%s</label>' .
				"<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'>",
				/* translators: Hidden accessibility text. */
				__( 'Current Page' ),
				$current,
				strlen( $total_pages )
			);
		}

$html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) );

$page_links[] = $total_pages_before . sprintf(
			/* translators: 1: Current page, 2: Total pages. */
			_x( '%1$s of %2$s', 'paging' ),
			$html_current_page,
			$html_total_pages
		) . $total_pages_after;

if ( $disable_next ) {
			$page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&rsaquo;</span>';
		} else {
			$page_links[] = sprintf(
				"<a class='next-page button' href='%s'>" .
					"<span class='screen-reader-text'>%s</span>" .
					"<span aria-hidden='true'>%s</span>" .
				'</a>',
				esc_url( add_query_arg( 'paged', min( $total_pages, $current + 1 ), $current_url ) ),
				/* translators: Hidden accessibility text. */
				__( 'Next page' ),
				'&rsaquo;'
			);
		}

if ( $disable_last ) {
			$page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">&raquo;</span>';
		} else {
			$page_links[] = sprintf(
				"<a class='last-page button' href='%s'>" .
					"<span class='screen-reader-text'>%s</span>" .
					"<span aria-hidden='true'>%s</span>" .
				'</a>',
				esc_url( add_query_arg( 'paged', $total_pages, $current_url ) ),
				/* translators: Hidden accessibility text. */
				__( 'Last page' ),
				'&raquo;'
			);
		}

$pagination_links_class = 'pagination-links';
		if ( ! empty( $infinite_scroll ) ) {
			$pagination_links_class .= ' hide-if-js';
		}
		$output .= "\n<span class='$pagination_links_class'>" . implode( "\n", $page_links ) . '</span>';

if ( $total_pages ) {
			$page_class = $total_pages < 2 ? ' one-page' : '';
		} else {
			$page_class = ' no-pages';
		}
		$this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>";

echo $this->_pagination;
	}

/**
	 * Gets a list of columns.
	 *
	 * The format is:
	 * - `'internal-name' => 'Title'`
	 *
	 * @since 3.1.0
	 * @abstract
	 *
	 * @return array
	 */
	public function get_columns() {
		die( 'function WP_List_Table::get_columns() must be overridden in a subclass.' );
	}

/**
	 * Gets a list of sortable columns.
	 *
	 * The format is:
	 * - `'internal-name' => 'orderby'`
	 * - `'internal-name' => array( 'orderby', bool, 'abbr', 'orderby-text', 'initially-sorted-column-order' )` -
	 * - `'internal-name' => array( 'orderby', 'asc' )` - The second element sets the initial sorting order.
	 * - `'internal-name' => array( 'orderby', true )`  - The second element makes the initial order descending.
	 *
	 * In the second format, passing true as second parameter will make the initial
	 * sorting order be descending. Following parameters add a short column name to
	 * be used as 'abbr' attribute, a translatable string for the current sorting,
	 * and the initial order for the initial sorted column, 'asc' or 'desc' (default: false).
	 *
	 * @since 3.1.0
	 * @since 6.3.0 Added 'abbr', 'orderby-text' and 'initially-sorted-column-order'.
	 *
	 * @return array
	 */
	protected function get_sortable_columns() {
		return array();
	}

/**
	 * Gets the name of the default primary column.
	 *
	 * @since 4.3.0
	 *
	 * @return string Name of the default primary column, in this case, an empty string.
	 */
	protected function get_default_primary_column_name() {
		$columns = $this->get_columns();
		$column  = '';

if ( empty( $columns ) ) {
			return $column;
		}

/*
		 * We need a primary defined so responsive views show something,
		 * so let's fall back to the first non-checkbox column.
		 */
		foreach ( $columns as $col => $column_name ) {
			if ( 'cb' === $col ) {
				continue;
			}

$column = $col;
			break;
		}

return $column;
	}

/**
	 * Gets the name of the primary column.
	 *
	 * Public wrapper for WP_List_Table::get_default_primary_column_name().
	 *
	 * @since 4.4.0
	 *
	 * @return string Name of the default primary column.
	 */
	public function get_primary_column() {
		return $this->get_primary_column_name();
	}

/**
	 * Gets the name of the primary column.
	 *
	 * @since 4.3.0
	 *
	 * @return string The name of the primary column.
	 */
	protected function get_primary_column_name() {
		$columns = get_column_headers( $this->screen );
		$default = $this->get_default_primary_column_name();

/*
		 * If the primary column doesn't exist,
		 * fall back to the first non-checkbox column.
		 */
		if ( ! isset( $columns[ $default ] ) ) {
			$default = self::get_default_primary_column_name();
		}

/**
		 * Filters the name of the primary column for the current list table.
		 *
		 * @since 4.3.0
		 *
		 * @param string $default Column name default for the specific list table, e.g. 'name'.
		 * @param string $context Screen ID for specific list table, e.g. 'plugins'.
		 */
		$column = apply_filters( 'list_table_primary_column', $default, $this->screen->id );

if ( empty( $column ) || ! isset( $columns[ $column ] ) ) {
			$column = $default;
		}

return $column;
	}

/**
	 * Gets a list of all, hidden, and sortable columns, with filter applied.
	 *
	 * @since 3.1.0
	 *
	 * @return array
	 */
	protected function get_column_info() {
		// $_column_headers is already set / cached.
		if (
			isset( $this->_column_headers ) &&
			is_array( $this->_column_headers )
		) {
			/*
			 * Backward compatibility for `$_column_headers` format prior to WordPress 4.3.
			 *
			 * In WordPress 4.3 the primary column name was added as a fourth item in the
			 * column headers property. This ensures the primary column name is included
			 * in plugins setting the property directly in the three item format.
			 */
			if ( 4 === count( $this->_column_headers ) ) {
				return $this->_column_headers;
			}

$column_headers = array( array(), array(), array(), $this->get_primary_column_name() );
			foreach ( $this->_column_headers as $key => $value ) {
				$column_headers[ $key ] = $value;
			}

$this->_column_headers = $column_headers;

return $this->_column_headers;
		}

$columns = get_column_headers( $this->screen );
		$hidden  = get_hidden_columns( $this->screen );

$sortable_columns = $this->get_sortable_columns();
		/**
		 * Filters the list table sortable columns for a specific screen.
		 *
		 * The dynamic portion of the hook name, `$this->screen->id`, refers
		 * to the ID of the current screen.
		 *
		 * @since 3.1.0
		 *
		 * @param array $sortable_columns An array of sortable columns.
		 */
		$_sortable = apply_filters( "manage_{$this->screen->id}_sortable_columns", $sortable_columns );

$sortable = array();
		foreach ( $_sortable as $id => $data ) {
			if ( empty( $data ) ) {
				continue;
			}

$data = (array) $data;
			// Descending initial sorting.
			if ( ! isset( $data[1] ) ) {
				$data[1] = false;
			}
			// Current sorting translatable string.
			if ( ! isset( $data[2] ) ) {
				$data[2] = '';
			}
			// Initial view sorted column and asc/desc order, default: false.
			if ( ! isset( $data[3] ) ) {
				$data[3] = false;
			}
			// Initial order for the initial sorted column, default: false.
			if ( ! isset( $data[4] ) ) {
				$data[4] = false;
			}

$sortable[ $id ] = $data;
		}

$primary               = $this->get_primary_column_name();
		$this->_column_headers = array( $columns, $hidden, $sortable, $primary );

return $this->_column_headers;
	}

/**
	 * Returns the number of visible columns.
	 *
	 * @since 3.1.0
	 *
	 * @return int
	 */
	public function get_column_count() {
		list ( $columns, $hidden ) = $this->get_column_info();
		$hidden                    = array_intersect( array_keys( $columns ), array_filter( $hidden ) );
		return count( $columns ) - count( $hidden );
	}

/**
	 * Prints column headers, accounting for hidden and sortable columns.
	 *
	 * @since 3.1.0
	 *
	 * @param bool $with_id Whether to set the ID attribute or not
	 */
	public function print_column_headers( $with_id = true ) {
		list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info();

$current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
		$current_url = remove_query_arg( 'paged', $current_url );

// When users click on a column header to sort by other columns.
		if ( isset( $_GET['orderby'] ) ) {
			$current_orderby = $_GET['orderby'];
			// In the initial view there's no orderby parameter.
		} else {
			$current_orderby = '';
		}

// Not in the initial view and descending order.
		if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) {
			$current_order = 'desc';
		} else {
			// The initial view is not always 'asc', we'll take care of this below.
			$current_order = 'asc';
		}

if ( ! empty( $columns['cb'] ) ) {
			static $cb_counter = 1;
			$columns['cb']     = '<input id="cb-select-all-' . $cb_counter . '" type="checkbox" />
			<label for="cb-select-all-' . $cb_counter . '">' .
				'<span class="screen-reader-text">' .
					/* translators: Hidden accessibility text. */
					__( 'Select All' ) .
				'</span>' .
				'</label>';
			++$cb_counter;
		}

foreach ( $columns as $column_key => $column_display_name ) {
			$class          = array( 'manage-column', "column-$column_key" );
			$aria_sort_attr = '';
			$abbr_attr      = '';
			$order_text     = '';

if ( in_array( $column_key, $hidden, true ) ) {
				$class[] = 'hidden';
			}

if ( 'cb' === $column_key ) {
				$class[] = 'check-column';
			} elseif ( in_array( $column_key, array( 'posts', 'comments', 'links' ), true ) ) {
				$class[] = 'num';
			}

if ( $column_key === $primary ) {
				$class[] = 'column-primary';
			}

if ( isset( $sortable[ $column_key ] ) ) {
				$orderby       = isset( $sortable[ $column_key ][0] ) ? $sortable[ $column_key ][0] : '';
				$desc_first    = isset( $sortable[ $column_key ][1] ) ? $sortable[ $column_key ][1] : false;
				$abbr          = isset( $sortable[ $column_key ][2] ) ? $sortable[ $column_key ][2] : '';
				$orderby_text  = isset( $sortable[ $column_key ][3] ) ? $sortable[ $column_key ][3] : '';
				$initial_order = isset( $sortable[ $column_key ][4] ) ? $sortable[ $column_key ][4] : '';

/*
				 * We're in the initial view and there's no $_GET['orderby'] then check if the
				 * initial sorting information is set in the sortable columns and use that.
				 */
				if ( '' === $current_orderby && $initial_order ) {
					// Use the initially sorted column $orderby as current orderby.
					$current_orderby = $orderby;
					// Use the initially sorted column asc/desc order as initial order.
					$current_order = $initial_order;
				}

/*
				 * True in the initial view when an initial orderby is set via get_sortable_columns()
				 * and true in the sorted views when the actual $_GET['orderby'] is equal to $orderby.
				 */
				if ( $current_orderby === $orderby ) {
					// The sorted column. The `aria-sort` attribute must be set only on the sorted column.
					if ( 'asc' === $current_order ) {
						$order          = 'desc';
						$aria_sort_attr = ' aria-sort="ascending"';
					} else {
						$order          = 'asc';
						$aria_sort_attr = ' aria-sort="descending"';
					}

$class[] = 'sorted';
					$class[] = $current_order;
				} else {
					// The other sortable columns.
					$order = strtolower( $desc_first );

if ( ! in_array( $order, array( 'desc', 'asc' ), true ) ) {
						$order = $desc_first ? 'desc' : 'asc';
					}

$class[] = 'sortable';
					$class[] = 'desc' === $order ? 'asc' : 'desc';

/* translators: Hidden accessibility text. */
					$asc_text = __( 'Sort ascending.' );
					/* translators: Hidden accessibility text. */
					$desc_text  = __( 'Sort descending.' );
					$order_text = 'asc' === $order ? $asc_text : $desc_text;
				}

if ( '' !== $order_text ) {
					$order_text = ' <span class="screen-reader-text">' . $order_text . '</span>';
				}

// Print an 'abbr' attribute if a value is provided via get_sortable_columns().
				$abbr_attr = $abbr ? ' abbr="' . esc_attr( $abbr ) . '"' : '';

$column_display_name = sprintf(
					'<a href="%1$s">' .
						'<span>%2$s</span>' .
						'<span class="sorting-indicators">' .
							'<span class="sorting-indicator asc" aria-hidden="true"></span>' .
							'<span class="sorting-indicator desc" aria-hidden="true"></span>' .
						'</span>' .
						'%3$s' .
					'</a>',
					esc_url( add_query_arg( compact( 'orderby', 'order' ), $current_url ) ),
					$column_display_name,
					$order_text
				);
			}

$tag   = ( 'cb' === $column_key ) ? 'td' : 'th';
			$scope = ( 'th' === $tag ) ? 'scope="col"' : '';
			$id    = $with_id ? "id='$column_key'" : '';

if ( ! empty( $class ) ) {
				$class = "class='" . implode( ' ', $class ) . "'";
			}

echo "<$tag $scope $id $class $aria_sort_attr $abbr_attr>$column_display_name</$tag>";
		}
	}

/**
	 * Print a table description with information about current sorting and order.
	 *
	 * For the table initial view, information about initial orderby and order
	 * should be provided via get_sortable_columns().
	 *
	 * @since 6.3.0
	 * @access public
	 */
	public function print_table_description() {
		list( $columns, $hidden, $sortable ) = $this->get_column_info();

if ( empty( $sortable ) ) {
			return;
		}

foreach ( array_keys( $columns ) as $column_key ) {

if ( ! is_string( $orderby_text ) || '' === $orderby_text ) {
					return;
				}
				/*
				 * We're in the initial view and there's no $_GET['orderby'] then check if the
				 * initial sorting information is set in the sortable columns and use that.
				 */
				if ( '' === $current_orderby && $initial_order ) {
					// Use the initially sorted column $orderby as current orderby.
					$current_orderby = $orderby;
					// Use the initially sorted column asc/desc order as initial order.
					$current_order = $initial_order;
				}

/*
				 * True in the initial view when an initial orderby is set via get_sortable_columns()
				 * and true in the sorted views when the actual $_GET['orderby'] is equal to $orderby.
				 */
				if ( $current_orderby === $orderby ) {
					/* translators: Hidden accessibility text. */
					$asc_text = __( 'Ascending.' );
					/* translators: Hidden accessibility text. */
					$desc_text  = __( 'Descending.' );
					$order_text = 'asc' === $current_order ? $asc_text : $desc_text;
					echo '<caption class="screen-reader-text">' . $orderby_text . ' ' . $order_text . '</caption>';

return;
				}
			}
		}
	}

/**
	 * Displays the table.
	 *
	 * @since 3.1.0
	 */
	public function display() {
		$singular = $this->_args['singular'];

$this->display_tablenav( 'top' );

$this->screen->render_screen_reader_content( 'heading_list' );
		?>
<table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>">
		<?php $this->print_table_description(); ?>
	<thead>
	<tr>
		<?php $this->print_column_headers(); ?>
	</tr>
	</thead>

<tbody id="the-list"
		<?php
		if ( $singular ) {
			echo " data-wp-lists='list:$singular'";
		}
		?>
		>
		<?php $this->display_rows_or_placeholder(); ?>
	</tbody>

<tfoot>
	<tr>
		<?php $this->print_column_headers( false ); ?>
	</tr>
	</tfoot>

</table>
		<?php
		$this->display_tablenav( 'bottom' );
	}

/**
	 * Gets a list of CSS classes for the WP_List_Table table tag.
	 *
	 * @since 3.1.0
	 *
	 * @return string[] Array of CSS classes for the table tag.
	 */
	protected function get_table_classes() {
		$mode = get_user_setting( 'posts_list_mode', 'list' );

$mode_class = esc_attr( 'table-view-' . $mode );

return array( 'widefat', 'fixed', 'striped', $mode_class, $this->_args['plural'] );
	}

/**
	 * Generates the table navigation above or below the table
	 *
	 * @since 3.1.0
	 * @param string $which The location of the navigation: Either 'top' or 'bottom'.
	 */
	protected function display_tablenav( $which ) {
		if ( 'top' === $which ) {
			wp_nonce_field( 'bulk-' . $this->_args['plural'] );
		}
		?>
	<div class="tablenav <?php echo esc_attr( $which ); ?>">

<?php if ( $this->has_items() ) : ?>
		<div class="alignleft actions bulkactions">
			<?php $this->bulk_actions( $which ); ?>
		</div>
			<?php
		endif;
		$this->extra_tablenav( $which );
		$this->pagination( $which );
		?>

<br class="clear" />
	</div>
		<?php
	}

/**
	 * Displays extra controls between bulk actions and pagination.
	 *
	 * @since 3.1.0
	 *
	 * @param string $which
	 */
	protected function extra_tablenav( $which ) {}

/**
	 * Generates the tbody element for the list table.
	 *
	 * @since 3.1.0
	 */
	public function display_rows_or_placeholder() {
		if ( $this->has_items() ) {
			$this->display_rows();
		} else {
			echo '<tr class="no-items"><td class="colspanchange" colspan="' . $this->get_column_count() . '">';
			$this->no_items();
			echo '</td></tr>';
		}
	}

/**
	 * Generates the list table rows.
	 *
	 * @since 3.1.0
	 */
	public function display_rows() {
		foreach ( $this->items as $item ) {
			$this->single_row( $item );
		}
	}

/**
	 * Generates content for a single row of the table.
	 *
	 * @since 3.1.0
	 *
	 * @param object|array $item The current item
	 */
	public function single_row( $item ) {
		echo '<tr>';
		$this->single_row_columns( $item );
		echo '</tr>';
	}

/**
	 * @param object|array $item
	 * @param string $column_name
	 */
	protected function column_default( $item, $column_name ) {}

/**
	 * @param object|array $item
	 */
	protected function column_cb( $item ) {}

/**
	 * Generates the columns for a single row of the table.
	 *
	 * @since 3.1.0
	 *
	 * @param object|array $item The current item.
	 */
	protected function single_row_columns( $item ) {
		list( $columns, $hidden, $sortable, $primary ) = $this->get_column_info();

foreach ( $columns as $column_name => $column_display_name ) {
			$classes = "$column_name column-$column_name";
			if ( $primary === $column_name ) {
				$classes .= ' has-row-actions column-primary';
			}

if ( in_array( $column_name, $hidden, true ) ) {
				$classes .= ' hidden';
			}

/*
			 * Comments column uses HTML in the display name with screen reader text.
			 * Strip tags to get closer to a user-friendly string.
			 */
			$data = 'data-colname="' . esc_attr( wp_strip_all_tags( $column_display_name ) ) . '"';

$attributes = "class='$classes' $data";

if ( 'cb' === $column_name ) {
				echo '<th scope="row" class="check-column">';
				echo $this->column_cb( $item );
				echo '</th>';
			} elseif ( method_exists( $this, '_column_' . $column_name ) ) {
				echo call_user_func(
					array( $this, '_column_' . $column_name ),
					$item,
					$classes,
					$data,
					$primary
				);
			} elseif ( method_exists( $this, 'column_' . $column_name ) ) {
				echo "<td $attributes>";
				echo call_user_func( array( $this, 'column_' . $column_name ), $item );
				echo $this->handle_row_actions( $item, $column_name, $primary );
				echo '</td>';
			} else {
				echo "<td $attributes>";
				echo $this->column_default( $item, $column_name );
				echo $this->handle_row_actions( $item, $column_name, $primary );
				echo '</td>';
			}
		}
	}

/**
	 * Generates and display row actions links for the list table.
	 *
	 * @since 4.3.0
	 *
	 * @param object|array $item        The item being acted upon.
	 * @param string       $column_name Current column name.
	 * @param string       $primary     Primary column name.
	 * @return string The row actions HTML, or an empty string
	 *                if the current column is not the primary column.
	 */
	protected function handle_row_actions( $item, $column_name, $primary ) {
		return $column_name === $primary ? '<button type="button" class="toggle-row"><span class="screen-reader-text">' .
			/* translators: Hidden accessibility text. */
			__( 'Show more details' ) .
		'</span></button>' : '';
	}

/**
	 * Handles an incoming ajax request (called from admin-ajax.php)
	 *
	 * @since 3.1.0
	 */
	public function ajax_response() {
		$this->prepare_items();

ob_start();
		if ( ! empty( $_REQUEST['no_placeholder'] ) ) {
			$this->display_rows();
		} else {
			$this->display_rows_or_placeholder();
		}

$rows = ob_get_clean();

$response = array( 'rows' => $rows );

if ( isset( $this->_pagination_args['total_items'] ) ) {
			$response['total_items_i18n'] = sprintf(
				/* translators: Number of items. */
				_n( '%s item', '%s items', $this->_pagination_args['total_items'] ),
				number_format_i18n( $this->_pagination_args['total_items'] )
			);
		}
		if ( isset( $this->_pagination_args['total_pages'] ) ) {
			$response['total_pages']      = $this->_pagination_args['total_pages'];
			$response['total_pages_i18n'] = number_format_i18n( $this->_pagination_args['total_pages'] );
		}

die( wp_json_encode( $response ) );
	}

/**
	 * Sends required variables to JavaScript land.
	 *
	 * @since 3.1.0
	 */
	public function _js_vars() {
		$args = array(
			'class'  => get_class( $this ),
			'screen' => array(
				'id'   => $this->screen->id,
				'base' => $this->screen->base,
			),
		);

printf( "<script type='text/javascript'>list_args = %s;</script>\n", wp_json_encode( $args ) );
	}
}

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