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<?php
/**
* Screen API: WP_Screen class
*
* @package WordPress
* @subpackage Administration
* @since 4.4.0
*/
/**
* Core class used to implement an admin screen API.
*
* @since 3.3.0
*/
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
*/
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
*/
public $base;
/**
* The number of columns to display. Access with get_columns().
*
* @since 3.4.0
* @var int
*/
private $columns = 0;
/**
* The unique ID of the screen.
*
* @since 3.3.0
* @var string
*/
public $id;
/**
* Which admin the screen is in. network | user | site | false
*
* @since 3.5.0
* @var string
*/
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
*/
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
*/
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
*/
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
*/
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
*/
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
*/
public $taxonomy;
/**
* The help tab data associated with the screen, if any.
*
* @since 3.3.0
* @var array
*/
private $_help_tabs = array();
/**
* The help sidebar data associated with screen, if any.
*
* @since 3.3.0
* @var string
*/
private $_help_sidebar = '';
/**
* The accessible hidden headings and text associated with the screen, if any.
*
* @since 4.4.0
* @var array
*/
private $_screen_reader_content = array();
/**
* Stores old string-based help.
*
* @static
*
* @var array
*/
private static $_old_compat_help = array();
/**
* The screen options associated with screen, if any.
*
* @since 3.3.0
* @var array
*/
private $_options = array();
/**
* The screen object registry.
*
* @since 3.3.0
*
* @static
*
* @var array
*/
private static $_registry = array();
/**
* Stores the result of the public show_screen_options function.
*
* @since 3.3.0
* @var bool
*/
private $_show_screen_options;
/**
* Stores the 'screen_settings' section of screen options.
*
* @since 3.3.0
* @var string
*/
private $_screen_settings;
/**
* Fetches a screen object.
*
* @since 3.3.0
*
* @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'] ) && isset( $_POST['post_ID'] ) && (int) $_GET['post'] !== (int) $_POST['post_ID'] )
wp_die( __( 'A post ID mismatch has been detected.' ), __( 'Sorry, you are not allowed to edit this item.' ), 400 );
elseif ( 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' :
case 'term' :
if ( null === $post_type && is_object_in_taxonomy( 'post', $taxonomy ? $taxonomy : 'post_tag' ) )
$post_type = 'post';
break;
case 'upload':
$post_type = 'attachment';
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' :
case 'term' :
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
*/
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 backward 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;
$priorities = array();
foreach ( $help_tabs as $help_tab ) {
if ( isset( $priorities[ $help_tab['priority'] ] ) ) {
$priorities[ $help_tab['priority'] ][] = $help_tab;
} else {
$priorities[ $help_tab['priority'] ] = array( $help_tab );
}
}
ksort( $priorities );
$sorted = array();
foreach ( $priorities as $list ) {
foreach ( $list as $tab ) {
$sorted[ $tab['id'] ] = $tab;
}
}
return $sorted;
}
/**
* 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;
}
/**
* Get the accessible hidden headings and text used in the screen.
*
* @since 4.4.0
*
* @see set_screen_reader_content() For more information on the array format.
*
* @return array An associative array of screen reader text strings.
*/
public function get_screen_reader_content() {
return $this->_screen_reader_content;
}
/**
* Get a screen reader text string.
*
* @since 4.4.0
*
* @param string $key Screen reader text array named key.
* @return string Screen reader text string.
*/
public function get_screen_reader_text( $key ) {
if ( ! isset( $this->_screen_reader_content[ $key ] ) ) {
return null;
}
return $this->_screen_reader_content[ $key ];
}
/**
* Add accessible hidden headings and text for the screen.
*
* @since 4.4.0
*
* @param array $content {
* An associative array of screen reader text strings.
*
* @type string $heading_views Screen reader text for the filter links heading.
* Default 'Filter items list'.
* @type string $heading_pagination Screen reader text for the pagination heading.
* Default 'Items list navigation'.
* @type string $heading_list Screen reader text for the items list heading.
* Default 'Items list'.
* }
*/
public function set_screen_reader_content( $content = array() ) {
$defaults = array(
'heading_views' => __( 'Filter items list' ),
'heading_pagination' => __( 'Items list navigation' ),
'heading_list' => __( 'Items list' ),
);
$content = wp_parse_args( $content, $defaults );
$this->_screen_reader_content = $content;
}
/**
* Remove all the accessible hidden headings and text for the screen.
*
* @since 4.4.0
*/
public function remove_screen_reader_content() {
$this->_screen_reader_content = array();
}
/**
* Render the screen's help section.
*
* This will trigger the deprecated filters for backward compatibility.
*
* @since 3.3.0
*
* @global string $screen_layout_columns
*/
public function render_screen_meta() {
/**
* Filters 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 ] : '';
/**
* Filters 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() ) {
/**
* Filters 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 = '<p>' . $default_help . '</p>';
}
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!
?>
<div id="screen-meta" class="metabox-prefs">
<div id="contextual-help-wrap" class="<?php echo esc_attr( $help_class ); ?>" tabindex="-1" aria-label="<?php esc_attr_e('Contextual Help Tab'); ?>">
<div id="contextual-help-back"></div>
<div id="contextual-help-columns">
<div class="contextual-help-tabs">
<ul>
<?php
$class = ' class="active"';
foreach ( $this->get_help_tabs() as $tab ) :
$link_id = "tab-link-{$tab['id']}";
$panel_id = "tab-panel-{$tab['id']}";
?>
<li id="<?php echo esc_attr( $link_id ); ?>"<?php echo $class; ?>>
<a href="<?php echo esc_url( "#$panel_id" ); ?>" aria-controls="<?php echo esc_attr( $panel_id ); ?>">
<?php echo esc_html( $tab['title'] ); ?>
</a>
</li>
<?php
$class = '';
endforeach;
?>
</ul>
</div>
<?php if ( $help_sidebar ) : ?>
<div class="contextual-help-sidebar">
<?php echo $help_sidebar; ?>
</div>
<?php endif; ?>
<div class="contextual-help-tabs-wrap">
<?php
$classes = 'help-tab-content active';
foreach ( $this->get_help_tabs() as $tab ):
$panel_id = "tab-panel-{$tab['id']}";
?>
<div id="<?php echo esc_attr( $panel_id ); ?>" class="<?php echo $classes; ?>">
<?php
// Print tab content.
echo $tab['content'];
// If it exists, fire tab callback.
if ( ! empty( $tab['callback'] ) )
call_user_func_array( $tab['callback'], array( $this, $tab ) );
?>
</div>
<?php
$classes = 'help-tab-content';
endforeach;
?>
</div>
</div>
</div>
<?php
// Setup layout columns
/**
* Filters the array of screen layout columns.
*
* This hook provides back-compat for plugins using the back-compat
* Filters instead of add_screen_option().
*
* @since 2.8.0
*
* @param array $empty_columns Empty array.
* @param string $screen_id Screen ID.
* @param WP_Screen $this Current WP_Screen instance.
*/
$columns = apply_filters( 'screen_layout_columns', array(), $this->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();
?>
</div>
<?php
if ( ! $this->get_help_tabs() && ! $this->show_screen_options() )
return;
?>
<div id="screen-meta-links">
<?php if ( $this->get_help_tabs() ) : ?>
<div id="contextual-help-link-wrap" class="hide-if-no-js screen-meta-toggle">
<button type="button" id="contextual-help-link" class="button show-settings" aria-controls="contextual-help-wrap" aria-expanded="false"><?php _e( 'Help' ); ?></button>
</div>
<?php endif;
if ( $this->show_screen_options() ) : ?>
<div id="screen-options-link-wrap" class="hide-if-no-js screen-meta-toggle">
<button type="button" id="show-settings-link" class="button show-settings" aria-controls="screen-options-wrap" aria-expanded="false"><?php _e( 'Screen Options' ); ?></button>
</div>
<?php endif; ?>
</div>
<?php
}
/**
*
* @global array $wp_meta_boxes
*
* @return bool
*/
public function show_screen_options() {
global $wp_meta_boxes;
if ( is_bool( $this->_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':
$nonce = wp_create_nonce( 'widgets-access' );
$this->_screen_settings = '<p><a id="access-on" href="widgets.php?widgets-access=on&_wpnonce=' . urlencode( $nonce ) . '">' . __('Enable accessibility mode') . '</a><a id="access-off" href="widgets.php?widgets-access=off&_wpnonce=' . urlencode( $nonce ) . '">' . __('Disable accessibility mode') . "</a></p>\n";
break;
case 'post' :
$expand = '<fieldset class="editor-expand hidden"><legend>' . __( 'Additional settings' ) . '</legend><label for="editor-expand-toggle">';
$expand .= '<input type="checkbox" id="editor-expand-toggle"' . checked( get_user_setting( 'editor_expand', 'on' ), 'on', false ) . ' />';
$expand .= __( 'Enable full-height editor and distraction-free functionality.' ) . '</label></fieldset>';
$this->_screen_settings = $expand;
break;
default:
$this->_screen_settings = '';
break;
}
/**
* Filters 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;
/**
* Filters 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
*
* @param array $options {
* @type bool $wrap Whether the screen-options-wrap div will be included. Defaults to true.
* }
*/
public function render_screen_options( $options = array() ) {
$options = wp_parse_args( $options, array(
'wrap' => true,
) );
$wrapper_start = $wrapper_end = $form_start = $form_end = '';
// Output optional wrapper.
if ( $options['wrap'] ) {
$wrapper_start = '<div id="screen-options-wrap" class="hidden" tabindex="-1" aria-label="' . esc_attr__( 'Screen Options Tab' ) . '">';
$wrapper_end = '</div>';
}
// Don't output the form and nonce for the widgets accessibility mode links.
if ( 'widgets' !== $this->base ) {
$form_start = "\n<form id='adv-settings' method='post'>\n";
$form_end = "\n" . wp_nonce_field( 'screen-options-nonce', 'screenoptionnonce', false, false ) . "\n</form>\n";
}
echo $wrapper_start . $form_start;
$this->render_meta_boxes_preferences();
$this->render_list_table_columns_preferences();
$this->render_screen_layout();
$this->render_per_page_options();
$this->render_view_mode();
echo $this->_screen_settings;
/**
* Filters whether to show the Screen Options submit button.
*
* @since 4.4.0
*
* @param bool $show_button Whether to show Screen Options submit button.
* Default false.
* @param WP_Screen $this Current WP_Screen instance.
*/
$show_button = apply_filters( 'screen_options_show_submit', false, $this );
if ( $show_button ) {
submit_button( __( 'Apply' ), 'primary', 'screen-options-apply', true );
}
echo $form_end . $wrapper_end;
}
/**
* Render the meta boxes preferences.
*
* @since 4.4.0
*
* @global array $wp_meta_boxes
*/
public function render_meta_boxes_preferences() {
global $wp_meta_boxes;
if ( ! isset( $wp_meta_boxes[ $this->id ] ) ) {
return;
}
?>
<fieldset class="metabox-prefs">
<legend><?php _e( 'Boxes' ); ?></legend>
<?php
meta_box_prefs( $this );
if ( 'dashboard' === $this->id && has_action( 'welcome_panel' ) && current_user_can( 'edit_theme_options' ) ) {
if ( isset( $_GET['welcome'] ) ) {
$welcome_checked = empty( $_GET['welcome'] ) ? 0 : 1;
update_user_meta( get_current_user_id(), 'show_welcome_panel', $welcome_checked );
} else {
$welcome_checked = get_user_meta( get_current_user_id(), 'show_welcome_panel', true );
if ( '' === $welcome_checked ) {
$welcome_checked = '1';
}
if ( '2' === $welcome_checked && wp_get_current_user()->user_email != get_option( 'admin_email' ) ) {
$welcome_checked = false;
}
}
echo '<label for="wp_welcome_panel-hide">';
echo '<input type="checkbox" id="wp_welcome_panel-hide"' . checked( (bool) $welcome_checked, true, false ) . ' />';
echo _x( 'Welcome', 'Welcome panel' ) . "</label>\n";
}
?>
</fieldset>
<?php
}
/**
* Render the list table columns preferences.
*
* @since 4.4.0
*/
public function render_list_table_columns_preferences() {
$columns = get_column_headers( $this );
$hidden = get_hidden_columns( $this );
if ( ! $columns ) {
return;
}
$legend = ! empty( $columns['_title'] ) ? $columns['_title'] : __( 'Columns' );
?>
<fieldset class="metabox-prefs">
<legend><?php echo $legend; ?></legend>
<?php
$special = array( '_title', 'cb', 'comment', 'media', 'name', 'title', 'username', 'blogname' );
foreach ( $columns as $column => $title ) {
// Can't hide these for they are special
if ( in_array( $column, $special ) ) {
continue;
}
if ( empty( $title ) ) {
continue;
}
/*
* The Comments column uses HTML in the display name with some screen
* reader text. Make sure to strip tags from the Comments column
* title and any other custom column title plugins might add.
*/
$title = wp_strip_all_tags( $title );
$id = "$column-hide";
echo '<label>';
echo '<input class="hide-column-tog" name="' . $id . '" type="checkbox" id="' . $id . '" value="' . $column . '"' . checked( ! in_array( $column, $hidden ), true, false ) . ' />';
echo "$title</label>\n";
}
?>
</fieldset>
<?php
}
/**
* Render the option for number of columns on the page
*
* @since 3.3.0
*/
public function render_screen_layout() {
if ( ! $this->get_option( 'layout_columns' ) ) {
return;
}
$screen_layout_columns = $this->get_columns();
$num = $this->get_option( 'layout_columns', 'max' );
?>
<fieldset class='columns-prefs'>
<legend class="screen-layout"><?php _e( 'Layout' ); ?></legend><?php
for ( $i = 1; $i <= $num; ++$i ):
?>
<label class="columns-prefs-<?php echo $i; ?>">
<input type='radio' name='screen_columns' value='<?php echo esc_attr( $i ); ?>'
<?php checked( $screen_layout_columns, $i ); ?> />
<?php printf( _n( '%s column', '%s columns', $i ), number_format_i18n( $i ) ); ?>
</label>
<?php
endfor; ?>
</fieldset>
<?php
}
/**
* Render the items per page option
*
* @since 3.3.0
*/
public function render_per_page_options() {
if ( null === $this->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/post.php */
$per_page = apply_filters( 'edit_posts_per_page', $per_page, $this->post_type );
}
// This needs a submit button
add_filter( 'screen_options_show_submit', '__return_true' );
?>
<fieldset class="screen-options">
<legend><?php _e( 'Pagination' ); ?></legend>
<?php if ( $per_page_label ) : ?>
<label for="<?php echo esc_attr( $option ); ?>"><?php echo $per_page_label; ?></label>
<input type="number" step="1" min="1" max="999" class="screen-per-page" name="wp_screen_options[value]"
id="<?php echo esc_attr( $option ); ?>" maxlength="3"
value="<?php echo esc_attr( $per_page ); ?>" />
<?php endif; ?>
<input type="hidden" name="wp_screen_options[option]" value="<?php echo esc_attr( $option ); ?>" />
</fieldset>
<?php
}
/**
* Render the list table view mode preferences.
*
* @since 4.4.0
*
* @global string $mode List table view mode.
*/
public function render_view_mode() {
$screen = get_current_screen();
// Currently only enabled for posts lists
if ( 'edit' !== $screen->base ) {
return;
}
$view_mode_post_types = get_post_types( array( 'hierarchical' => false, 'show_ui' => true ) );
/**
* Filters the post types that have different view mode options.
*
* @since 4.4.0
*
* @param array $view_mode_post_types Array of post types that can change view modes.
* Default non-hierarchical post types with show_ui on.
*/
$view_mode_post_types = apply_filters( 'view_mode_post_types', $view_mode_post_types );
if ( ! in_array( $this->post_type, $view_mode_post_types ) ) {
return;
}
global $mode;
// This needs a submit button
add_filter( 'screen_options_show_submit', '__return_true' );
?>
<fieldset class="metabox-prefs view-mode">
<legend><?php _e( 'View Mode' ); ?></legend>
<label for="list-view-mode">
<input id="list-view-mode" type="radio" name="mode" value="list" <?php checked( 'list', $mode ); ?> />
<?php _e( 'List View' ); ?>
</label>
<label for="excerpt-view-mode">
<input id="excerpt-view-mode" type="radio" name="mode" value="excerpt" <?php checked( 'excerpt', $mode ); ?> />
<?php _e( 'Excerpt View' ); ?>
</label>
</fieldset>
<?php
}
/**
* Render screen reader text.
*
* @since 4.4.0
*
* @param string $key The screen reader text array named key.
* @param string $tag Optional. The HTML tag to wrap the screen reader text. Default h2.
*/
public function render_screen_reader_content( $key = '', $tag = 'h2' ) {
if ( ! isset( $this->_screen_reader_content[ $key ] ) ) {
return;
}
echo "<$tag class='screen-reader-text'>" . $this->_screen_reader_content[ $key ] . "</$tag>";
}
}