Web.Admin/2014/wordpress/wp-admin/includes/screen.php
<?php
/**
* WordPress Administration Screen API.
*
* @package WordPress
* @subpackage Administration
*/
/**
* Get the column headers for a screen
*
* @since 2.7.0
*
* @param string|WP_Screen $screen The screen you want the headers for
* @return array Containing the headers in the format id => 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 );
return (array) get_user_option( 'manage' . $screen->id . 'columnshidden' );
}
/**
* Prints the meta box preferences for screen meta.
*
* @since 2.7.0
*
* @param string|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 $context ) {
foreach ( array_keys($wp_meta_boxes[$screen->id][$context]) as $priority ) {
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 '<label for="' . $box_id . '-hide">';
echo '<input class="hide-postbox-tog" name="' . $box_id . '-hide" type="checkbox" id="' . $box_id . '-hide" value="' . $box_id . '"' . (! in_array($box_id, $hidden) ? ' checked="checked"' : '') . ' />';
echo "{$box['title']}</label>\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
*
* @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
* @uses $current_screen
*
* @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.
*/
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
* @var array
* @access private
*/
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
*
* @param string $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 ( is_a( $hook_name, '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
*/
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 boolean 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
*
* @param WP_Screen $screen A screen object.
* @param string $help Help text.
*/
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.
*/
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 ID.
* @param mixed $key Optional. Specific array key for when the option is an array.
*/
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
*
* @return array Help tabs with arguments.
*/
public function get_help_tabs() {
return $this->_help_tabs;
}
/**
* 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
*
* @param array $args
* - string - title - Title for the tab.
* - string - id - Tab ID. Must be HTML-safe.
* - string - content - Help tab content in plain text or HTML. Optional.
* - callback - callback - A callback to generate the tab content. Optional.
*
*/
public function add_help_tab( $args ) {
$defaults = array(
'title' => false,
'id' => false,
'content' => '',
'callback' => false,
);
$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
*/
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 = '<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
/**
* Filter the array of screen layout columns.
*
* This hook provides back-compat for plugins using the back-compat
* filter 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">
<a href="#contextual-help-wrap" id="contextual-help-link" class="show-settings" aria-controls="contextual-help-wrap" aria-expanded="false"><?php _e( 'Help' ); ?></a>
</div>
<?php endif;
if ( $this->show_screen_options() ) : ?>
<div id="screen-options-link-wrap" class="hide-if-no-js screen-meta-toggle">
<a href="#screen-options-wrap" id="show-settings-link" class="show-settings" aria-controls="screen-options-wrap" aria-expanded="false"><?php _e( 'Screen Options' ); ?></a>
</div>
<?php endif; ?>
</div>
<?php
}
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->id ) {
case 'widgets':
$this->_screen_settings = '<p><a id="access-on" href="widgets.php?widgets-access=on">' . __('Enable accessibility mode') . '</a><a id="access-off" href="widgets.php?widgets-access=off">' . __('Disable accessibility mode') . "</a></p>\n";
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
*/
public function render_screen_options() {
global $wp_meta_boxes, $wp_list_table;
$columns = get_column_headers( $this );
$hidden = get_hidden_columns( $this );
$post = get_post();
?>
<div id="screen-options-wrap" class="hidden" tabindex="-1" aria-label="<?php esc_attr_e('Screen Options Tab'); ?>">
<form id="adv-settings" action="" method="post">
<?php if ( isset( $wp_meta_boxes[ $this->id ] ) || $this->get_option( 'per_page' ) || ( $columns && empty( $columns['_title'] ) ) ) : ?>
<h5><?php _e( 'Show on screen' ); ?></h5>
<?php
endif;
if ( isset( $wp_meta_boxes[ $this->id ] ) ) : ?>
<div class="metabox-prefs">
<?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 ( 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";
}
?>
<br class="clear" />
</div>
<?php endif;
if ( $columns ) :
if ( ! empty( $columns['_title'] ) ) : ?>
<h5><?php echo $columns['_title']; ?></h5>
<?php endif; ?>
<div class="metabox-prefs">
<?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;
if ( 'comments' == $column )
$title = __( 'Comments' );
$id = "$column-hide";
echo '<label for="' . $id . '">';
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";
}
?>
<br class="clear" />
</div>
<?php endif;
$this->render_screen_layout();
$this->render_per_page_options();
echo $this->_screen_settings;
?>
<div><?php wp_nonce_field( 'screen-options-nonce', 'screenoptionnonce', false ); ?></div>
</form>
</div>
<?php
}
/**
* Render the option for number of columns on the page
*
* @since 3.3.0
*/
function render_screen_layout() {
if ( ! $this->get_option('layout_columns') )
return;
$screen_layout_columns = $this->get_columns();
$num = $this->get_option( 'layout_columns', 'max' );
?>
<h5 class="screen-layout"><?php _e('Screen Layout'); ?></h5>
<div class='columns-prefs'><?php
_e('Number of Columns:');
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 echo esc_html( $i ); ?>
</label>
<?php
endfor; ?>
</div>
<?php
}
/**
* Render the items per page option
*
* @since 3.3.0
*/
function render_per_page_options() {
if ( ! $this->get_option( 'per_page' ) )
return;
$per_page_label = $this->get_option( 'per_page', 'label' );
$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 );
}
?>
<div class="screen-options">
<?php if ( $per_page_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 ); ?>" />
<label for="<?php echo esc_attr( $option ); ?>">
<?php echo esc_html( $per_page_label ); ?>
</label>
<?php endif;
echo get_submit_button( __( 'Apply' ), 'button', 'screen-options-apply', false ); ?>
<input type='hidden' name='wp_screen_options[option]' value='<?php echo esc_attr($option); ?>' />
</div>
<?php
}
}