/**
* Base class for displaying a list of items in an ajaxified HTML table.
*
- * @package WordPress
- * @subpackage List_Table
* @since 3.1.0
- */
-
-/**
- * Base class for displaying a list of items in an ajaxified HTML table.
+ * @access private
*
* @package WordPress
* @subpackage List_Table
- * @since 3.1.0
- * @access private
*/
class WP_List_Table {
*
* @since 3.1.0
* @var array
- * @access protected
+ * @access public
*/
- var $items;
+ public $items;
/**
* Various information about the current table
* @var array
* @access private
*/
- var $_args;
+ private $_args;
/**
* Various information needed for displaying the pagination
* @var array
* @access private
*/
- var $_pagination_args = array();
+ private $_pagination_args = array();
/**
* The current screen
* @var object
* @access protected
*/
- var $screen;
+ protected $screen;
/**
* Cached bulk actions
* @var array
* @access private
*/
- var $_actions;
+ private $_actions;
/**
* Cached pagination output
* @var string
* @access private
*/
- var $_pagination;
+ private $_pagination;
/**
- * Constructor. The child class should call this constructor from it's own constructor
+ * Constructor.
*
- * @param array $args An associative array with information about the current table
- * @access protected
+ * The child class should call this constructor from its own constructor to override
+ * the default $args.
+ *
+ * @since 3.1.0
+ * @access public
+ *
+ * @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 {@see _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.
+ * }
*/
- function __construct( $args = array() ) {
+ public function __construct( $args = array() ) {
$args = wp_parse_args( $args, array(
'plural' => '',
'singular' => '',
$this->screen = convert_to_screen( $args['screen'] );
- add_filter( "manage_{$this->screen->id}_columns", array( &$this, 'get_columns' ), 0 );
+ add_filter( "manage_{$this->screen->id}_columns", array( $this, 'get_columns' ), 0 );
if ( !$args['plural'] )
$args['plural'] = $this->screen->base;
if ( $args['ajax'] ) {
// wp_enqueue_script( 'list-table' );
- add_action( 'admin_footer', array( &$this, '_js_vars' ) );
+ add_action( 'admin_footer', array( $this, '_js_vars' ) );
}
}
+ /**
+ * Make private properties readable for backwards compatibility.
+ *
+ * @since 4.0.0
+ * @access public
+ *
+ * @param string $name Property to get.
+ * @return mixed Property.
+ */
+ public function __get( $name ) {
+ return $this->$name;
+ }
+
+ /**
+ * Make private properties settable for backwards compatibility.
+ *
+ * @since 4.0.0
+ * @access public
+ *
+ * @param string $name Property to set.
+ * @param mixed $value Property value.
+ * @return mixed Newly-set property.
+ */
+ public function __set( $name, $value ) {
+ return $this->$name = $value;
+ }
+
+ /**
+ * Make private properties checkable for backwards compatibility.
+ *
+ * @since 4.0.0
+ * @access public
+ *
+ * @param string $name Property to check if set.
+ * @return bool Whether the property is set.
+ */
+ public function __isset( $name ) {
+ return isset( $this->$name );
+ }
+
+ /**
+ * Make private properties un-settable for backwards compatibility.
+ *
+ * @since 4.0.0
+ * @access public
+ *
+ * @param string $name Property to unset.
+ */
+ public function __unset( $name ) {
+ unset( $this->$name );
+ }
+
+ /**
+ * Make private/protected methods readable for backwards compatibility.
+ *
+ * @since 4.0.0
+ * @access public
+ *
+ * @param callable $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 ) {
+ return call_user_func_array( array( $this, $name ), $arguments );
+ }
+
/**
* Checks the current user's permissions
* @uses wp_die()
* @access public
* @abstract
*/
- function ajax_user_can() {
+ public function ajax_user_can() {
die( 'function WP_List_Table::ajax_user_can() must be over-ridden in a sub-class.' );
}
* @access public
* @abstract
*/
- function prepare_items() {
+ public function prepare_items() {
die( 'function WP_List_Table::prepare_items() must be over-ridden in a sub-class.' );
}
* @param array $args An associative array with information about the pagination
* @access protected
*/
- function set_pagination_args( $args ) {
+ protected function set_pagination_args( $args ) {
$args = wp_parse_args( $args, array(
'total_items' => 0,
'total_pages' => 0,
if ( !$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
+ // Redirect if page number is invalid and headers are not already sent.
if ( ! headers_sent() && ( ! defined( 'DOING_AJAX' ) || ! DOING_AJAX ) && $args['total_pages'] > 0 && $this->get_pagenum() > $args['total_pages'] ) {
wp_redirect( add_query_arg( 'paged', $args['total_pages'] ) );
exit;
* @param string $key
* @return array
*/
- function get_pagination_arg( $key ) {
+ public function get_pagination_arg( $key ) {
if ( 'page' == $key )
return $this->get_pagenum();
*
* @return bool
*/
- function has_items() {
+ public function has_items() {
return !empty( $this->items );
}
* @since 3.1.0
* @access public
*/
- function no_items() {
+ public function no_items() {
_e( 'No items found.' );
}
* @param string $text The search button text
* @param string $input_id The search input id
*/
- function search_box( $text, $input_id ) {
+ public function search_box( $text, $input_id ) {
if ( empty( $_REQUEST['s'] ) && !$this->has_items() )
return;
*
* @return array
*/
- function get_views() {
+ protected function get_views() {
return array();
}
* @since 3.1.0
* @access public
*/
- function views() {
+ public function views() {
$views = $this->get_views();
- $views = apply_filters( 'views_' . $this->screen->id, $views );
+ /**
+ * Filter 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 array $views An array of available list table views.
+ */
+ $views = apply_filters( "views_{$this->screen->id}", $views );
if ( empty( $views ) )
return;
*
* @return array
*/
- function get_bulk_actions() {
+ protected function get_bulk_actions() {
return array();
}
* Display the bulk actions dropdown.
*
* @since 3.1.0
- * @access public
+ * @access protected
+ *
+ * @param string $which The location of the bulk actions: 'top' or 'bottom'.
+ * This is designated as optional for backwards-compatibility.
*/
- function bulk_actions() {
+ protected function bulk_actions( $which = '' ) {
if ( is_null( $this->_actions ) ) {
$no_new_actions = $this->_actions = $this->get_bulk_actions();
- // This filter can currently only be used to remove actions.
- $this->_actions = apply_filters( 'bulk_actions-' . $this->screen->id, $this->_actions );
+ /**
+ * Filter 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 array $actions An array of the available bulk actions.
+ */
+ $this->_actions = apply_filters( "bulk_actions-{$this->screen->id}", $this->_actions );
$this->_actions = array_intersect_assoc( $this->_actions, $no_new_actions );
$two = '';
} else {
if ( empty( $this->_actions ) )
return;
- echo "<select name='action$two'>\n";
+ 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' selected='selected'>" . __( 'Bulk Actions' ) . "</option>\n";
foreach ( $this->_actions as $name => $title ) {
*
* @return string|bool The action name or False if no action was selected
*/
- function current_action() {
+ 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'];
* @param bool $always_visible Whether the actions should be always visible
* @return string
*/
- function row_actions( $actions, $always_visible = false ) {
+ 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' ) . '">';
+ $out = '<div class="' . ( $always_visible ? 'row-actions visible' : 'row-actions' ) . '">';
foreach ( $actions as $action => $link ) {
++$i;
( $i == $action_count ) ? $sep = '' : $sep = ' | ';
* @since 3.1.0
* @access protected
*/
- function months_dropdown( $post_type ) {
+ protected function months_dropdown( $post_type ) {
global $wpdb, $wp_locale;
$months = $wpdb->get_results( $wpdb->prepare( "
ORDER BY post_date DESC
", $post_type ) );
+ /**
+ * Filter the 'Months' drop-down results.
+ *
+ * @since 3.7.0
+ *
+ * @param object $months 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 ) )
$m = isset( $_GET['m'] ) ? (int) $_GET['m'] : 0;
?>
- <select name='m'>
- <option<?php selected( $m, 0 ); ?> value='0'><?php _e( 'Show all dates' ); ?></option>
+ <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 )
* @since 3.1.0
* @access protected
*/
- function view_switcher( $current_mode ) {
+ protected function view_switcher( $current_mode ) {
$modes = array(
'list' => __( 'List View' ),
'excerpt' => __( 'Excerpt View' )
<div class="view-switch">
<?php
foreach ( $modes as $mode => $title ) {
- $class = ( $current_mode == $mode ) ? 'class="current"' : '';
- echo "<a href='" . esc_url( add_query_arg( 'mode', $mode, $_SERVER['REQUEST_URI'] ) ) . "' $class><img id='view-switch-$mode' src='" . esc_url( includes_url( 'images/blank.gif' ) ) . "' width='20' height='20' title='$title' alt='$title' /></a>\n";
+ $classes = array( 'view-' . $mode );
+ if ( $current_mode == $mode )
+ $classes[] = 'current';
+ printf(
+ "<a href='%s' class='%s' id='view-switch-$mode'><span class='screen-reader-text'>%s</span></a>\n",
+ esc_url( add_query_arg( 'mode', $mode ) ),
+ implode( ' ', $classes ),
+ $title
+ );
}
?>
</div>
* @since 3.1.0
* @access protected
*
- * @param int $post_id
- * @param int $pending_comments
+ * @param int $post_id The post ID.
+ * @param int $pending_comments Number of pending comments.
*/
- function comments_bubble( $post_id, $pending_comments ) {
+ protected function comments_bubble( $post_id, $pending_comments ) {
$pending_phrase = sprintf( __( '%s pending' ), number_format( $pending_comments ) );
if ( $pending_comments )
* Get the current page number
*
* @since 3.1.0
- * @access protected
+ * @access public
*
* @return int
*/
- function get_pagenum() {
+ 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'] )
*
* @return int
*/
- function get_items_per_page( $option, $default = 20 ) {
+ 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;
+ /**
+ * Filter the number of items to be displayed on each page of the list table.
+ *
+ * The dynamic hook name, $option, refers to the per page option depending
+ * on the type of list table in use. Possible values may include:
+ * 'edit_comments_per_page', 'sites_network_per_page', 'site_themes_network_per_page',
+ * 'themes_netework_per_page', 'users_network_per_page', 'edit_{$post_type}', etc.
+ *
+ * @since 2.9.0
+ *
+ * @param int $per_page Number of items to be displayed. Default 20.
+ */
return (int) apply_filters( $option, $per_page );
}
* @since 3.1.0
* @access protected
*/
- function pagination( $which ) {
- if ( empty( $this->_pagination_args ) )
+ protected function pagination( $which ) {
+ if ( empty( $this->_pagination_args ) ) {
return;
+ }
- extract( $this->_pagination_args, EXTR_SKIP );
+ $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'];
+ }
$output = '<span class="displaying-num">' . sprintf( _n( '1 item', '%s items', $total_items ), number_format_i18n( $total_items ) ) . '</span>';
$page_links = array();
$disable_first = $disable_last = '';
- if ( $current == 1 )
+ if ( $current == 1 ) {
$disable_first = ' disabled';
- if ( $current == $total_pages )
+ }
+ if ( $current == $total_pages ) {
$disable_last = ' disabled';
-
+ }
$page_links[] = sprintf( "<a class='%s' title='%s' href='%s'>%s</a>",
'first-page' . $disable_first,
esc_attr__( 'Go to the first page' ),
'‹'
);
- if ( 'bottom' == $which )
+ if ( 'bottom' == $which ) {
$html_current_page = $current;
- else
- $html_current_page = sprintf( "<input class='current-page' title='%s' type='text' name='paged' value='%s' size='%d' />",
+ } else {
+ $html_current_page = sprintf( "%s<input class='current-page' id='current-page-selector' title='%s' type='text' name='paged' value='%s' size='%d' />",
+ '<label for="current-page-selector" class="screen-reader-text">' . __( 'Select Page' ) . '</label>',
esc_attr__( 'Current page' ),
$current,
strlen( $total_pages )
);
-
+ }
$html_total_pages = sprintf( "<span class='total-pages'>%s</span>", number_format_i18n( $total_pages ) );
$page_links[] = '<span class="paging-input">' . sprintf( _x( '%1$s of %2$s', 'paging' ), $html_current_page, $html_total_pages ) . '</span>';
);
$pagination_links_class = 'pagination-links';
- if ( ! empty( $infinite_scroll ) )
+ 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 )
+ if ( $total_pages ) {
$page_class = $total_pages < 2 ? ' one-page' : '';
- else
+ } else {
$page_class = ' no-pages';
-
+ }
$this->_pagination = "<div class='tablenav-pages{$page_class}'>$output</div>";
echo $this->_pagination;
* 'internal-name' => 'Title'
*
* @since 3.1.0
- * @access protected
+ * @access public
* @abstract
*
* @return array
*/
- function get_columns() {
+ public function get_columns() {
die( 'function WP_List_Table::get_columns() must be over-ridden in a sub-class.' );
}
*
* @return array
*/
- function get_sortable_columns() {
+ protected function get_sortable_columns() {
return array();
}
*
* @return array
*/
- function get_column_info() {
+ protected function get_column_info() {
if ( isset( $this->_column_headers ) )
return $this->_column_headers;
$columns = get_column_headers( $this->screen );
$hidden = get_hidden_columns( $this->screen );
- $_sortable = apply_filters( "manage_{$this->screen->id}_sortable_columns", $this->get_sortable_columns() );
+ $sortable_columns = $this->get_sortable_columns();
+ /**
+ * Filter 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 ) {
*
* @return int
*/
- function get_column_count() {
+ 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
- * @access protected
+ * @access public
*
* @param bool $with_id Whether to set the id attribute or not
*/
- function print_column_headers( $with_id = true ) {
+ public function print_column_headers( $with_id = true ) {
list( $columns, $hidden, $sortable ) = $this->get_column_info();
$current_url = set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
* @since 3.1.0
* @access public
*/
- function display() {
- extract( $this->_args );
+ public function display() {
+ $singular = $this->_args['singular'];
$this->display_tablenav( 'top' );
?>
-<table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>" cellspacing="0">
+<table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>">
<thead>
<tr>
<?php $this->print_column_headers(); ?>
</tr>
</tfoot>
- <tbody id="the-list"<?php if ( $singular ) echo " data-wp-lists='list:$singular'"; ?>>
+ <tbody id="the-list"<?php
+ if ( $singular ) {
+ echo " data-wp-lists='list:$singular'";
+ } ?>>
<?php $this->display_rows_or_placeholder(); ?>
</tbody>
</table>
*
* @return array
*/
- function get_table_classes() {
+ protected function get_table_classes() {
return array( 'widefat', 'fixed', $this->_args['plural'] );
}
* @since 3.1.0
* @access protected
*/
- function display_tablenav( $which ) {
+ protected function display_tablenav( $which ) {
if ( 'top' == $which )
wp_nonce_field( 'bulk-' . $this->_args['plural'] );
?>
<div class="tablenav <?php echo esc_attr( $which ); ?>">
- <div class="alignleft actions">
- <?php $this->bulk_actions(); ?>
+ <div class="alignleft actions bulkactions">
+ <?php $this->bulk_actions( $which ); ?>
</div>
<?php
$this->extra_tablenav( $which );
* @since 3.1.0
* @access protected
*/
- function extra_tablenav( $which ) {}
+ protected function extra_tablenav( $which ) {}
/**
* Generate the <tbody> part of the table
*
* @since 3.1.0
- * @access protected
+ * @access public
*/
- function display_rows_or_placeholder() {
+ public function display_rows_or_placeholder() {
if ( $this->has_items() ) {
$this->display_rows();
} else {
- list( $columns, $hidden ) = $this->get_column_info();
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
- * @access protected
+ * @access public
*/
- function display_rows() {
+ 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
- * @access protected
+ * @access public
*
* @param object $item The current item
*/
- function single_row( $item ) {
+ public function single_row( $item ) {
static $row_class = '';
$row_class = ( $row_class == '' ? ' class="alternate"' : '' );
echo '<tr' . $row_class . '>';
- echo $this->single_row_columns( $item );
+ $this->single_row_columns( $item );
echo '</tr>';
}
*
* @param object $item The current item
*/
- function single_row_columns( $item ) {
+ protected function single_row_columns( $item ) {
list( $columns, $hidden ) = $this->get_column_info();
foreach ( $columns as $column_name => $column_display_name ) {
}
elseif ( method_exists( $this, 'column_' . $column_name ) ) {
echo "<td $attributes>";
- echo call_user_func( array( &$this, 'column_' . $column_name ), $item );
+ echo call_user_func( array( $this, 'column_' . $column_name ), $item );
echo "</td>";
}
else {
* @since 3.1.0
* @access public
*/
- function ajax_response() {
+ public function ajax_response() {
$this->prepare_items();
- extract( $this->_args );
- extract( $this->_pagination_args, EXTR_SKIP );
-
ob_start();
- if ( ! empty( $_REQUEST['no_placeholder'] ) )
+ if ( ! empty( $_REQUEST['no_placeholder'] ) ) {
$this->display_rows();
- else
+ } else {
$this->display_rows_or_placeholder();
+ }
$rows = ob_get_clean();
$response = array( 'rows' => $rows );
- if ( isset( $total_items ) )
- $response['total_items_i18n'] = sprintf( _n( '1 item', '%s items', $total_items ), number_format_i18n( $total_items ) );
-
- if ( isset( $total_pages ) ) {
- $response['total_pages'] = $total_pages;
- $response['total_pages_i18n'] = number_format_i18n( $total_pages );
+ if ( isset( $this->_pagination_args['total_items'] ) ) {
+ $response['total_items_i18n'] = sprintf(
+ _n( '1 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( json_encode( $response ) );
/**
* Send required variables to JavaScript land
*
- * @access private
+ * @access public
*/
- function _js_vars() {
+ public function _js_vars() {
$args = array(
'class' => get_class( $this ),
'screen' => array(