UI String */ function get_column_headers( $screen ) { if ( is_string( $screen ) ) $screen = convert_to_screen( $screen ); static $column_headers = array(); if ( ! isset( $column_headers[ $screen->id ] ) ) { /** * Filter the column headers for a list table on a specific screen. * * The dynamic portion of the hook name, `$screen->id`, refers to the * ID of a specific screen. For example, the screen ID for the Posts * list table is edit-post, so the filter for that screen would be * manage_edit-post_columns. * * @since 3.0.0 * * @param array $columns An array of column headers. Default empty. */ $column_headers[ $screen->id ] = apply_filters( "manage_{$screen->id}_columns", array() ); } return $column_headers[ $screen->id ]; } /** * Get a list of hidden columns. * * @since 2.7.0 * * @param string|WP_Screen $screen The screen you want the hidden columns for * @return array */ function get_hidden_columns( $screen ) { if ( is_string( $screen ) ) { $screen = convert_to_screen( $screen ); } $hidden = get_user_option( 'manage' . $screen->id . 'columnshidden' ); if ( ! $hidden ) { $hidden = array(); /** * Filter the default list of hidden columns. * * @since 4.4.0 * * @param array $hidden An array of columns hidden by default. * @param WP_Screen $screen WP_Screen object of the current screen. */ $hidden = apply_filters( 'default_hidden_columns', $hidden, $screen ); } /** * Filter the list of hidden columns. * * @since 4.4.0 * * @param array $hidden An array of hidden columns. * @param WP_Screen $screen WP_Screen object of the current screen. */ return apply_filters( 'hidden_columns', $hidden, $screen ); } /** * Prints the meta box preferences for screen meta. * * @since 2.7.0 * * @global array $wp_meta_boxes * * @param WP_Screen $screen */ function meta_box_prefs( $screen ) { global $wp_meta_boxes; if ( is_string( $screen ) ) $screen = convert_to_screen( $screen ); if ( empty($wp_meta_boxes[$screen->id]) ) return; $hidden = get_hidden_meta_boxes($screen); foreach ( array_keys( $wp_meta_boxes[ $screen->id ] ) as $context ) { foreach ( array( 'high', 'core', 'default', 'low' ) as $priority ) { if ( ! isset( $wp_meta_boxes[ $screen->id ][ $context ][ $priority ] ) ) { continue; } foreach ( $wp_meta_boxes[ $screen->id ][ $context ][ $priority ] as $box ) { if ( false == $box || ! $box['title'] ) continue; // Submit box cannot be hidden if ( 'submitdiv' == $box['id'] || 'linksubmitdiv' == $box['id'] ) continue; $box_id = $box['id']; echo '\n"; } } } } /** * Get Hidden Meta Boxes * * @since 2.7.0 * * @param string|WP_Screen $screen Screen identifier * @return array Hidden Meta Boxes */ function get_hidden_meta_boxes( $screen ) { if ( is_string( $screen ) ) $screen = convert_to_screen( $screen ); $hidden = get_user_option( "metaboxhidden_{$screen->id}" ); $use_defaults = ! is_array( $hidden ); // Hide slug boxes by default if ( $use_defaults ) { $hidden = array(); if ( 'post' == $screen->base ) { if ( 'post' == $screen->post_type || 'page' == $screen->post_type || 'attachment' == $screen->post_type ) $hidden = array('slugdiv', 'trackbacksdiv', 'postcustom', 'postexcerpt', 'commentstatusdiv', 'commentsdiv', 'authordiv', 'revisionsdiv'); else $hidden = array( 'slugdiv' ); } /** * Filter the default list of hidden meta boxes. * * @since 3.1.0 * * @param array $hidden An array of meta boxes hidden by default. * @param WP_Screen $screen WP_Screen object of the current screen. */ $hidden = apply_filters( 'default_hidden_meta_boxes', $hidden, $screen ); } /** * Filter the list of hidden meta boxes. * * @since 3.3.0 * * @param array $hidden An array of hidden meta boxes. * @param WP_Screen $screen WP_Screen object of the current screen. * @param bool $use_defaults Whether to show the default meta boxes. * Default true. */ return apply_filters( 'hidden_meta_boxes', $hidden, $screen, $use_defaults ); } /** * Register and configure an admin screen option * * @since 3.1.0 * * @param string $option An option name. * @param mixed $args Option-dependent arguments. */ function add_screen_option( $option, $args = array() ) { $current_screen = get_current_screen(); if ( ! $current_screen ) return; $current_screen->add_option( $option, $args ); } /** * Get the current screen object * * @since 3.1.0 * * @global WP_Screen $current_screen * * @return WP_Screen Current screen object */ function get_current_screen() { global $current_screen; if ( ! isset( $current_screen ) ) return null; return $current_screen; } /** * Set the current screen object * * @since 3.0.0 * * @param mixed $hook_name Optional. The hook name (also known as the hook suffix) used to determine the screen, * or an existing screen object. */ function set_current_screen( $hook_name = '' ) { WP_Screen::get( $hook_name )->set_current_screen(); } /** * A class representing the admin screen. * * @since 3.3.0 * @access public */ final class WP_Screen { /** * Any action associated with the screen. 'add' for *-add.php and *-new.php screens. Empty otherwise. * * @since 3.3.0 * @var string * @access public */ public $action; /** * The base type of the screen. This is typically the same as $id but with any post types and taxonomies stripped. * For example, for an $id of 'edit-post' the base is 'edit'. * * @since 3.3.0 * @var string * @access public */ public $base; /** * The number of columns to display. Access with get_columns(). * * @since 3.4.0 * @var int * @access private */ private $columns = 0; /** * The unique ID of the screen. * * @since 3.3.0 * @var string * @access public */ public $id; /** * Which admin the screen is in. network | user | site | false * * @since 3.5.0 * @var string * @access protected */ protected $in_admin; /** * Whether the screen is in the network admin. * * Deprecated. Use in_admin() instead. * * @since 3.3.0 * @deprecated 3.5.0 * @var bool * @access public */ public $is_network; /** * Whether the screen is in the user admin. * * Deprecated. Use in_admin() instead. * * @since 3.3.0 * @deprecated 3.5.0 * @var bool * @access public */ public $is_user; /** * The base menu parent. * This is derived from $parent_file by removing the query string and any .php extension. * $parent_file values of 'edit.php?post_type=page' and 'edit.php?post_type=post' have a $parent_base of 'edit'. * * @since 3.3.0 * @var string * @access public */ public $parent_base; /** * The parent_file for the screen per the admin menu system. * Some $parent_file values are 'edit.php?post_type=page', 'edit.php', and 'options-general.php'. * * @since 3.3.0 * @var string * @access public */ public $parent_file; /** * The post type associated with the screen, if any. * The 'edit.php?post_type=page' screen has a post type of 'page'. * The 'edit-tags.php?taxonomy=$taxonomy&post_type=page' screen has a post type of 'page'. * * @since 3.3.0 * @var string * @access public */ public $post_type; /** * The taxonomy associated with the screen, if any. * The 'edit-tags.php?taxonomy=category' screen has a taxonomy of 'category'. * @since 3.3.0 * @var string * @access public */ public $taxonomy; /** * The help tab data associated with the screen, if any. * * @since 3.3.0 * @var array * @access private */ private $_help_tabs = array(); /** * The help sidebar data associated with screen, if any. * * @since 3.3.0 * @var string * @access private */ private $_help_sidebar = ''; /** * Stores old string-based help. * * @static * @access private * * @var array */ private static $_old_compat_help = array(); /** * The screen options associated with screen, if any. * * @since 3.3.0 * @var array * @access private */ private $_options = array(); /** * The screen object registry. * * @since 3.3.0 * * @static * @access private * * @var array */ private static $_registry = array(); /** * Stores the result of the public show_screen_options function. * * @since 3.3.0 * @var bool * @access private */ private $_show_screen_options; /** * Stores the 'screen_settings' section of screen options. * * @since 3.3.0 * @var string * @access private */ private $_screen_settings; /** * Fetches a screen object. * * @since 3.3.0 * @access public * * @static * * @global string $hook_suffix * * @param string|WP_Screen $hook_name Optional. The hook name (also known as the hook suffix) used to determine the screen. * Defaults to the current $hook_suffix global. * @return WP_Screen Screen object. */ public static function get( $hook_name = '' ) { if ( $hook_name instanceof WP_Screen ) { return $hook_name; } $post_type = $taxonomy = null; $in_admin = false; $action = ''; if ( $hook_name ) $id = $hook_name; else $id = $GLOBALS['hook_suffix']; // For those pesky meta boxes. if ( $hook_name && post_type_exists( $hook_name ) ) { $post_type = $id; $id = 'post'; // changes later. ends up being $base. } else { if ( '.php' == substr( $id, -4 ) ) $id = substr( $id, 0, -4 ); if ( 'post-new' == $id || 'link-add' == $id || 'media-new' == $id || 'user-new' == $id ) { $id = substr( $id, 0, -4 ); $action = 'add'; } } if ( ! $post_type && $hook_name ) { if ( '-network' == substr( $id, -8 ) ) { $id = substr( $id, 0, -8 ); $in_admin = 'network'; } elseif ( '-user' == substr( $id, -5 ) ) { $id = substr( $id, 0, -5 ); $in_admin = 'user'; } $id = sanitize_key( $id ); if ( 'edit-comments' != $id && 'edit-tags' != $id && 'edit-' == substr( $id, 0, 5 ) ) { $maybe = substr( $id, 5 ); if ( taxonomy_exists( $maybe ) ) { $id = 'edit-tags'; $taxonomy = $maybe; } elseif ( post_type_exists( $maybe ) ) { $id = 'edit'; $post_type = $maybe; } } if ( ! $in_admin ) $in_admin = 'site'; } else { if ( defined( 'WP_NETWORK_ADMIN' ) && WP_NETWORK_ADMIN ) $in_admin = 'network'; elseif ( defined( 'WP_USER_ADMIN' ) && WP_USER_ADMIN ) $in_admin = 'user'; else $in_admin = 'site'; } if ( 'index' == $id ) $id = 'dashboard'; elseif ( 'front' == $id ) $in_admin = false; $base = $id; // If this is the current screen, see if we can be more accurate for post types and taxonomies. if ( ! $hook_name ) { if ( isset( $_REQUEST['post_type'] ) ) $post_type = post_type_exists( $_REQUEST['post_type'] ) ? $_REQUEST['post_type'] : false; if ( isset( $_REQUEST['taxonomy'] ) ) $taxonomy = taxonomy_exists( $_REQUEST['taxonomy'] ) ? $_REQUEST['taxonomy'] : false; switch ( $base ) { case 'post' : if ( isset( $_GET['post'] ) ) $post_id = (int) $_GET['post']; elseif ( isset( $_POST['post_ID'] ) ) $post_id = (int) $_POST['post_ID']; else $post_id = 0; if ( $post_id ) { $post = get_post( $post_id ); if ( $post ) $post_type = $post->post_type; } break; case 'edit-tags' : if ( null === $post_type && is_object_in_taxonomy( 'post', $taxonomy ? $taxonomy : 'post_tag' ) ) $post_type = 'post'; break; } } switch ( $base ) { case 'post' : if ( null === $post_type ) $post_type = 'post'; $id = $post_type; break; case 'edit' : if ( null === $post_type ) $post_type = 'post'; $id .= '-' . $post_type; break; case 'edit-tags' : if ( null === $taxonomy ) $taxonomy = 'post_tag'; // The edit-tags ID does not contain the post type. Look for it in the request. if ( null === $post_type ) { $post_type = 'post'; if ( isset( $_REQUEST['post_type'] ) && post_type_exists( $_REQUEST['post_type'] ) ) $post_type = $_REQUEST['post_type']; } $id = 'edit-' . $taxonomy; break; } if ( 'network' == $in_admin ) { $id .= '-network'; $base .= '-network'; } elseif ( 'user' == $in_admin ) { $id .= '-user'; $base .= '-user'; } if ( isset( self::$_registry[ $id ] ) ) { $screen = self::$_registry[ $id ]; if ( $screen === get_current_screen() ) return $screen; } else { $screen = new WP_Screen(); $screen->id = $id; } $screen->base = $base; $screen->action = $action; $screen->post_type = (string) $post_type; $screen->taxonomy = (string) $taxonomy; $screen->is_user = ( 'user' == $in_admin ); $screen->is_network = ( 'network' == $in_admin ); $screen->in_admin = $in_admin; self::$_registry[ $id ] = $screen; return $screen; } /** * Makes the screen object the current screen. * * @see set_current_screen() * @since 3.3.0 * * @global WP_Screen $current_screen * @global string $taxnow * @global string $typenow */ public function set_current_screen() { global $current_screen, $taxnow, $typenow; $current_screen = $this; $taxnow = $this->taxonomy; $typenow = $this->post_type; /** * Fires after the current screen has been set. * * @since 3.0.0 * * @param WP_Screen $current_screen Current WP_Screen object. */ do_action( 'current_screen', $current_screen ); } /** * Constructor * * @since 3.3.0 * @access private */ private function __construct() {} /** * Indicates whether the screen is in a particular admin * * @since 3.5.0 * * @param string $admin The admin to check against (network | user | site). * If empty any of the three admins will result in true. * @return bool True if the screen is in the indicated admin, false otherwise. */ public function in_admin( $admin = null ) { if ( empty( $admin ) ) return (bool) $this->in_admin; return ( $admin == $this->in_admin ); } /** * Sets the old string-based contextual help for the screen. * * For backwards compatibility. * * @since 3.3.0 * * @static * * @param WP_Screen $screen A screen object. * @param string $help Help text. */ public static function add_old_compat_help( $screen, $help ) { self::$_old_compat_help[ $screen->id ] = $help; } /** * Set the parent information for the screen. * This is called in admin-header.php after the menu parent for the screen has been determined. * * @since 3.3.0 * * @param string $parent_file The parent file of the screen. Typically the $parent_file global. */ public function set_parentage( $parent_file ) { $this->parent_file = $parent_file; list( $this->parent_base ) = explode( '?', $parent_file ); $this->parent_base = str_replace( '.php', '', $this->parent_base ); } /** * Adds an option for the screen. * Call this in template files after admin.php is loaded and before admin-header.php is loaded to add screen options. * * @since 3.3.0 * * @param string $option Option ID * @param mixed $args Option-dependent arguments. */ public function add_option( $option, $args = array() ) { $this->_options[ $option ] = $args; } /** * Remove an option from the screen. * * @since 3.8.0 * * @param string $option Option ID. */ public function remove_option( $option ) { unset( $this->_options[ $option ] ); } /** * Remove all options from the screen. * * @since 3.8.0 */ public function remove_options() { $this->_options = array(); } /** * Get the options registered for the screen. * * @since 3.8.0 * * @return array Options with arguments. */ public function get_options() { return $this->_options; } /** * Gets the arguments for an option for the screen. * * @since 3.3.0 * * @param string $option Option name. * @param string $key Optional. Specific array key for when the option is an array. * Default false. * @return string The option value if set, null otherwise. */ public function get_option( $option, $key = false ) { if ( ! isset( $this->_options[ $option ] ) ) return null; if ( $key ) { if ( isset( $this->_options[ $option ][ $key ] ) ) return $this->_options[ $option ][ $key ]; return null; } return $this->_options[ $option ]; } /** * Gets the help tabs registered for the screen. * * @since 3.4.0 * @since 4.4.0 Help tabs are ordered by their priority. * * @return array Help tabs with arguments. */ public function get_help_tabs() { $help_tabs = $this->_help_tabs; uasort( $help_tabs, array( $this, '_sort_help_tabs' ) ); return $help_tabs; } /** * Compares the difference between the help tabs priorities. * * Used for help tabs sorting. * * @since 4.4.0 * * @param int $tab_a The priority argument for the first tab. * @param int $tab_b The priority argument for the second tab. * @return int The difference between the priority arguments. */ protected function _sort_help_tabs( $tab_a, $tab_b ) { return $tab_a['priority'] - $tab_b['priority']; } /** * Gets the arguments for a help tab. * * @since 3.4.0 * * @param string $id Help Tab ID. * @return array Help tab arguments. */ public function get_help_tab( $id ) { if ( ! isset( $this->_help_tabs[ $id ] ) ) return null; return $this->_help_tabs[ $id ]; } /** * Add a help tab to the contextual help for the screen. * Call this on the load-$pagenow hook for the relevant screen. * * @since 3.3.0 * @since 4.4.0 The `$priority` argument was added. * * @param array $args { * Array of arguments used to display the help tab. * * @type string $title Title for the tab. Default false. * @type string $id Tab ID. Must be HTML-safe. Default false. * @type string $content Optional. Help tab content in plain text or HTML. Default empty string. * @type string $callback Optional. A callback to generate the tab content. Default false. * @type int $priority Optional. The priority of the tab, used for ordering. Default 10. * } */ public function add_help_tab( $args ) { $defaults = array( 'title' => false, 'id' => false, 'content' => '', 'callback' => false, 'priority' => 10, ); $args = wp_parse_args( $args, $defaults ); $args['id'] = sanitize_html_class( $args['id'] ); // Ensure we have an ID and title. if ( ! $args['id'] || ! $args['title'] ) return; // Allows for overriding an existing tab with that ID. $this->_help_tabs[ $args['id'] ] = $args; } /** * Removes a help tab from the contextual help for the screen. * * @since 3.3.0 * * @param string $id The help tab ID. */ public function remove_help_tab( $id ) { unset( $this->_help_tabs[ $id ] ); } /** * Removes all help tabs from the contextual help for the screen. * * @since 3.3.0 */ public function remove_help_tabs() { $this->_help_tabs = array(); } /** * Gets the content from a contextual help sidebar. * * @since 3.4.0 * * @return string Contents of the help sidebar. */ public function get_help_sidebar() { return $this->_help_sidebar; } /** * Add a sidebar to the contextual help for the screen. * Call this in template files after admin.php is loaded and before admin-header.php is loaded to add a sidebar to the contextual help. * * @since 3.3.0 * * @param string $content Sidebar content in plain text or HTML. */ public function set_help_sidebar( $content ) { $this->_help_sidebar = $content; } /** * Gets the number of layout columns the user has selected. * * The layout_columns option controls the max number and default number of * columns. This method returns the number of columns within that range selected * by the user via Screen Options. If no selection has been made, the default * provisioned in layout_columns is returned. If the screen does not support * selecting the number of layout columns, 0 is returned. * * @since 3.4.0 * * @return int Number of columns to display. */ public function get_columns() { return $this->columns; } /** * Render the screen's help section. * * This will trigger the deprecated filters for backwards compatibility. * * @since 3.3.0 * * @global string $screen_layout_columns */ public function render_screen_meta() { /** * Filter the legacy contextual help list. * * @since 2.7.0 * @deprecated 3.3.0 Use get_current_screen()->add_help_tab() or * get_current_screen()->remove_help_tab() instead. * * @param array $old_compat_help Old contextual help. * @param WP_Screen $this Current WP_Screen instance. */ self::$_old_compat_help = apply_filters( 'contextual_help_list', self::$_old_compat_help, $this ); $old_help = isset( self::$_old_compat_help[ $this->id ] ) ? self::$_old_compat_help[ $this->id ] : ''; /** * Filter the legacy contextual help text. * * @since 2.7.0 * @deprecated 3.3.0 Use get_current_screen()->add_help_tab() or * get_current_screen()->remove_help_tab() instead. * * @param string $old_help Help text that appears on the screen. * @param string $screen_id Screen ID. * @param WP_Screen $this Current WP_Screen instance. * */ $old_help = apply_filters( 'contextual_help', $old_help, $this->id, $this ); // Default help only if there is no old-style block of text and no new-style help tabs. if ( empty( $old_help ) && ! $this->get_help_tabs() ) { /** * Filter the default legacy contextual help text. * * @since 2.8.0 * @deprecated 3.3.0 Use get_current_screen()->add_help_tab() or * get_current_screen()->remove_help_tab() instead. * * @param string $old_help_default Default contextual help text. */ $default_help = apply_filters( 'default_contextual_help', '' ); if ( $default_help ) $old_help = '

' . $default_help . '

'; } if ( $old_help ) { $this->add_help_tab( array( 'id' => 'old-contextual-help', 'title' => __('Overview'), 'content' => $old_help, ) ); } $help_sidebar = $this->get_help_sidebar(); $help_class = 'hidden'; if ( ! $help_sidebar ) $help_class .= ' no-sidebar'; // Time to render! ?>
    get_help_tabs() as $tab ) : $link_id = "tab-link-{$tab['id']}"; $panel_id = "tab-panel-{$tab['id']}"; ?>
get_help_tabs() as $tab ): $panel_id = "tab-panel-{$tab['id']}"; ?>
id, $this ); if ( ! empty( $columns ) && isset( $columns[ $this->id ] ) ) $this->add_option( 'layout_columns', array('max' => $columns[ $this->id ] ) ); if ( $this->get_option( 'layout_columns' ) ) { $this->columns = (int) get_user_option("screen_layout_$this->id"); if ( ! $this->columns && $this->get_option( 'layout_columns', 'default' ) ) $this->columns = $this->get_option( 'layout_columns', 'default' ); } $GLOBALS[ 'screen_layout_columns' ] = $this->columns; // Set the global for back-compat. // Add screen options if ( $this->show_screen_options() ) $this->render_screen_options(); ?>
get_help_tabs() && ! $this->show_screen_options() ) return; ?> _show_screen_options ) ) return $this->_show_screen_options; $columns = get_column_headers( $this ); $show_screen = ! empty( $wp_meta_boxes[ $this->id ] ) || $columns || $this->get_option( 'per_page' ); switch ( $this->base ) { case 'widgets': $this->_screen_settings = '

' . __('Enable accessibility mode') . '' . __('Disable accessibility mode') . "

\n"; break; case 'post' : $expand = ''; $this->_screen_settings = $expand; break; default: $this->_screen_settings = ''; break; } /** * Filter the screen settings text displayed in the Screen Options tab. * * This filter is currently only used on the Widgets screen to enable * accessibility mode. * * @since 3.0.0 * * @param string $screen_settings Screen settings. * @param WP_Screen $this WP_Screen object. */ $this->_screen_settings = apply_filters( 'screen_settings', $this->_screen_settings, $this ); if ( $this->_screen_settings || $this->_options ) $show_screen = true; /** * Filter whether to show the Screen Options tab. * * @since 3.2.0 * * @param bool $show_screen Whether to show Screen Options tab. * Default true. * @param WP_Screen $this Current WP_Screen instance. */ $this->_show_screen_options = apply_filters( 'screen_options_show_screen', $show_screen, $this ); return $this->_show_screen_options; } /** * Render the screen options tab. * * @since 3.3.0 * * @global array $wp_meta_boxes */ public function render_screen_options() { global $wp_meta_boxes; $columns = get_column_headers( $this ); $hidden = get_hidden_columns( $this ); ?> get_option('layout_columns') ) return; $screen_layout_columns = $this->get_columns(); $num = $this->get_option( 'layout_columns', 'max' ); ?>
get_option( 'per_page' ) ) { return; } $per_page_label = $this->get_option( 'per_page', 'label' ); if ( null === $per_page_label ) { $per_page_label = __( 'Number of items per page:' ); } $option = $this->get_option( 'per_page', 'option' ); if ( ! $option ) { $option = str_replace( '-', '_', "{$this->id}_per_page" ); } $per_page = (int) get_user_option( $option ); if ( empty( $per_page ) || $per_page < 1 ) { $per_page = $this->get_option( 'per_page', 'default' ); if ( ! $per_page ) { $per_page = 20; } } if ( 'edit_comments_per_page' == $option ) { $comment_status = isset( $_REQUEST['comment_status'] ) ? $_REQUEST['comment_status'] : 'all'; /** This filter is documented in wp-admin/includes/class-wp-comments-list-table.php */ $per_page = apply_filters( 'comments_per_page', $per_page, $comment_status ); } elseif ( 'categories_per_page' == $option ) { /** This filter is documented in wp-admin/includes/class-wp-terms-list-table.php */ $per_page = apply_filters( 'edit_categories_per_page', $per_page ); } else { /** This filter is documented in wp-admin/includes/class-wp-list-table.php */ $per_page = apply_filters( $option, $per_page ); } // Back compat if ( isset( $this->post_type ) ) { /** This filter is documented in wp-admin/includes/class-wp-posts-list-table.php */ $per_page = apply_filters( 'edit_posts_per_page', $per_page, $this->post_type ); } ?>