Summery Summery
Base class for displaying a list of items in an ajaxified HTML table.
Syntax Syntax
Source Source
File: wp-admin/includes/class-wp-list-table.php
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 object */ 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' ), ); } } /** * Make private properties readable for backward compatibility. * * @since 4.0.0 * * @param string $name Property to get. * @return mixed Property. */ public function __get( $name ) { if ( in_array( $name, $this->compat_fields, true ) ) { return $this->$name; } } /** * Make private properties settable for backward compatibility. * * @since 4.0.0 * * @param string $name Property to check if set. * @param mixed $value Property value. * @return mixed Newly-set property. */ public function __set( $name, $value ) { if ( in_array( $name, $this->compat_fields, true ) ) { return $this->$name = $value; } } /** * Make private properties checkable for backward compatibility. * * @since 4.0.0 * * @param string $name Property to check if set. * @return bool Whether the property is set. */ public function __isset( $name ) { if ( in_array( $name, $this->compat_fields, true ) ) { return isset( $this->$name ); } } /** * Make private properties un-settable for backward compatibility. * * @since 4.0.0 * * @param string $name Property to unset. */ public function __unset( $name ) { if ( in_array( $name, $this->compat_fields, true ) ) { unset( $this->$name ); } } /** * Make 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.' ); } /** * An internal method that 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'] = 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 ]; } } /** * 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'] ) ) { 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 } /** * 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, usually a string. * * @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>'; } /** * Gets the list of bulk actions available on this table. * * The format is an associative array: * - `'option_name' => 'option_title'` * * @since 3.1.0 * * @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: 'top' or 'bottom'. * This is designated as optional for backward compatibility. */ protected function bulk_actions( $which = '' ) { if ( is_null( $this->_actions ) ) { $this->_actions = $this->get_bulk_actions(); /** * Filters the list table bulk actions drop-down. * * The dynamic portion of the hook name, `$this->screen->id`, refers * to the ID of the current screen, usually a string. * * @since 3.1.0 * * @param string[] $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">' . __( '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 $name => $title ) { $class = 'edit' === $name ? ' class="hide-if-no-js"' : ''; echo "\t" . '<option value="' . $name . '"' . $class . '>' . $title . "</option>\n"; } echo "</select>\n"; submit_button( __( 'Apply' ), 'action', '', false, array( 'id' => "doaction$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']; } if ( isset( $_REQUEST['action2'] ) && -1 != $_REQUEST['action2'] ) { return $_REQUEST['action2']; } 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; } $out = '<div class="' . ( $always_visible ? 'row-actions visible' : 'row-actions' ) . '">'; $i = 0; foreach ( $actions as $action => $link ) { ++$i; $sep = ( $i < $action_count ) ? ' | ' : ''; $out .= "<span class='$action'>$link$sep</span>"; } $out .= '</div>'; $out .= '<button type="button" class="toggle-row"><span class="screen-reader-text">' . __( 'Show more details' ) . '</span></button>'; return $out; } /** * 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; } $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 == $months[0]->month ) ) { return; } $m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0; ?> <label for="filter-by-date" class="screen-reader-text"><?php _e( 'Filter by date' ); ?></label> <select name="m" id="filter-by-date"> <option<?php selected( $m, 0 ); ?> value="0"><?php _e( 'All dates' ); ?></option> <?php foreach ( $months as $arc_row ) { if ( 0 == $arc_row->year ) { continue; } $month = zeroise( $arc_row->month, 2 ); $year = $arc_row->year; printf( "<option %s value='%s'>%s</option>\n", selected( $m, $year . $month, false ), esc_attr( $arc_row->year . $month ), /* translators: 1: Month name, 2: 4-digit year. */ sprintf( __( '%1$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 ) { $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 ? __( 'No approved comments' ) : __( '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 ? __( 'No pending comments' ) : __( '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 * @param int $default * @return int */ protected function get_items_per_page( $option, $default = 20 ) { $per_page = (int) get_user_option( $option ); if ( empty( $per_page ) || $per_page < 1 ) { $per_page = $default; } /** * Filters the number of items to be displayed on each page of the list table. * * The dynamic hook name, `$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 */ 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 ( 2 == $current ) { $disable_first = true; } if ( $total_pages == $current ) { $disable_last = true; $disable_next = true; } if ( $total_pages - 1 == $current ) { $disable_last = 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 ) ), __( 'First page' ), '«' ); } if ( $disable_prev ) { $page_links[] = '<span class="tablenav-pages-navspan button disabled" aria-hidden="true">‹</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 ) ), __( 'Previous page' ), '‹' ); } if ( 'bottom' === $which ) { $html_current_page = $current; $total_pages_before = '<span class="screen-reader-text">' . __( 'Current Page' ) . '</span><span id="table-paging" class="paging-input"><span class="tablenav-paging-text">'; } else { $html_current_page = sprintf( "%s<input class='current-page' id='current-page-selector' type='text' name='paged' value='%s' size='%d' aria-describedby='table-paging' /><span class='tablenav-paging-text'>", '<label for="current-page-selector" class="screen-reader-text">' . __( 'Current Page' ) . '</label>', $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">›</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 ) ), __( 'Next page' ), '›' ); } 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 ) ), __( 'Last page' ), '»' ); } $pagination_links_class = 'pagination-links'; if ( ! empty( $infinite_scroll ) ) { $pagination_links_class .= ' hide-if-js'; } $output .= "\n<span class='$pagination_links_class'>" . join( "\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', 'asc' )` - The second element sets the initial sorting order. * - `'internal-name' => array( 'orderby', true )` - The second element makes the initial order descending. * * @since 3.1.0 * * @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; } /** * 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 = WP_List_Table::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 ) ) { // Back-compat for list tables that have been manually setting $_column_headers for horse reasons. // In 4.3, we added a fourth argument for primary column. $column_headers = array( array(), array(), array(), $this->get_primary_column_name() ); foreach ( $this->_column_headers as $key => $value ) { $column_headers[ $key ] = $value; } return $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, usually a string. * * @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; if ( ! isset( $data[1] ) ) { $data[1] = 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 ); if ( isset( $_GET['orderby'] ) ) { $current_orderby = $_GET['orderby']; } else { $current_orderby = ''; } if ( isset( $_GET['order'] ) && 'desc' === $_GET['order'] ) { $current_order = 'desc'; } else { $current_order = 'asc'; } if ( ! empty( $columns['cb'] ) ) { static $cb_counter = 1; $columns['cb'] = '<label class="screen-reader-text" for="cb-select-all-' . $cb_counter . '">' . __( 'Select All' ) . '</label>' . '<input id="cb-select-all-' . $cb_counter . '" type="checkbox" />'; $cb_counter++; } foreach ( $columns as $column_key => $column_display_name ) { $class = array( 'manage-column', "column-$column_key" ); 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 ] ) ) { list( $orderby, $desc_first ) = $sortable[ $column_key ]; if ( $current_orderby === $orderby ) { $order = 'asc' === $current_order ? 'desc' : 'asc'; $class[] = 'sorted'; $class[] = $current_order; } else { $order = strtolower( $desc_first ); if ( ! in_array( $order, array( 'desc', 'asc' ), true ) ) { $order = $desc_first ? 'desc' : 'asc'; } $class[] = 'sortable'; $class[] = 'desc' === $order ? 'asc' : 'desc'; } $column_display_name = sprintf( '<a href="%s"><span>%s</span><span class="sorting-indicator"></span></a>', esc_url( add_query_arg( compact( 'orderby', 'order' ), $current_url ) ), $column_display_name ); } $tag = ( 'cb' === $column_key ) ? 'td' : 'th'; $scope = ( 'th' === $tag ) ? 'scope="col"' : ''; $id = $with_id ? "id='$column_key'" : ''; if ( ! empty( $class ) ) { $class = "class='" . join( ' ', $class ) . "'"; } echo "<$tag $scope $id $class>$column_display_name</$tag>"; } } /** * 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() ); ?>"> <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 */ 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 } /** * Extra controls to be displayed 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 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 $item The current item */ public function single_row( $item ) { echo '<tr>'; $this->single_row_columns( $item ); echo '</tr>'; } /** * @param object $item * @param string $column_name */ protected function column_default( $item, $column_name ) {} /** * @param object $item */ protected function column_cb( $item ) {} /** * Generates the columns for a single row of the table. * * @since 3.1.0 * * @param object $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. // Instead of using esc_attr(), we strip tags to get closer to a user-friendly string. $data = 'data-colname="' . 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,
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Changelog Changelog
Version | Description |
---|---|
3.1.0 | Introduced. |