WordPress/wp-admin/includes/class-wp-list-table.php
Sergey Biryukov b16368c268 Docs: Remove @staticvar tags from core.
The tag was supported in phpDocumentor 1.x, but is no longer supported in 2.x and 3.x.

Usage of static variables is considered an internal implementation detail and has no information value for someone reading the docs.

Props alishanvr, jrf.
Fixes #50426.
Built from https://develop.svn.wordpress.org/trunk@48109


git-svn-id: http://core.svn.wordpress.org/trunk@47878 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2020-06-20 12:40:12 +00:00

1438 lines
38 KiB
PHP

<?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
* @access private
*/
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' => __( 'List View' ),
'excerpt' => __( 'Excerpt 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
}
/**
* Get an associative array ( id => link ) with the list
* of views available on this table.
*
* @since 3.1.0
*
* @return array
*/
protected function get_views() {
return array();
}
/**
* Display 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 3.5.0
*
* @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>';
}
/**
* Get an associative array ( option_name => option_title ) with the list
* of bulk actions available on this table.
*
* @since 3.1.0
*
* @return array
*/
protected function get_bulk_actions() {
return array();
}
/**
* Display 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.
*
* This filter can currently only be used to remove bulk actions.
*
* @since 3.5.0
*
* @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";
}
/**
* Get the current action selected from the bulk actions dropdown.
*
* @since 3.1.0
*
* @return string|false The action name or 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 );
$i = 0;
if ( ! $action_count ) {
return '';
}
$out = '<div class="' . ( $always_visible ? 'row-actions visible' : 'row-actions' ) . '">';
foreach ( $actions as $action => $link ) {
++$i;
( $i == $action_count ) ? $sep = '' : $sep = ' | ';
$out .= "<span class='$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
}
/**
* Display 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
}
/**
* Display 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">&#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 ? __( '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' )
);
}
}
/**
* Get 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 );
}
/**
* Get 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, $option, refers to the `per_page` option depending
* on the type of list table in use. Possible values include: 'edit_comments_per_page',
* 'sites_network_per_page', 'site_themes_network_per_page', 'themes_network_per_page',
* 'users_network_per_page', 'edit_post_per_page', 'edit_page_per_page',
* 'edit_{$post_type}_per_page', etc.
*
* @since 2.9.0
*
* @param int $per_page Number of items to be displayed. Default 20.
*/
return (int) apply_filters( "{$option}", $per_page );
}
/**
* Display 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">&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 ) ),
__( '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 ) ),
__( 'Previous page' ),
'&lsaquo;'
);
}
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">&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 ) ),
__( '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 ) ),
__( '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'>" . 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;
}
/**
* Get 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.' );
}
/**
* Get a list of sortable columns. The format is:
* 'internal-name' => 'orderby'
* or
* 'internal-name' => array( 'orderby', true )
*
* The second format will make the initial sorting order be 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;
}
/**
* Get 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 3.5.0
*
* @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;
}
/**
* Return 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 );
}
/**
* Print 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 = $desc_first ? 'desc' : 'asc';
$class[] = 'sortable';
$class[] = $desc_first ? 'asc' : 'desc';
}
$column_display_name = '<a href="' . esc_url( add_query_arg( compact( 'orderby', 'order' ), $current_url ) ) . '"><span>' . $column_display_name . '</span><span class="sorting-indicator"></span></a>';
}
$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' );
}
/**
* Get 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() {
return array( 'widefat', 'fixed', 'striped', $this->_args['plural'] );
}
/**
* Generate 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 ) {}
/**
* Generate 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>';
}
}
/**
* Generate 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,
$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 $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">' . __( 'Show more details' ) . '</span></button>' : '';
}
/**
* Handle 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 ) );
}
/**
* Send required variables to JavaScript land
*/
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 ) );
}
}