id ) ) {
return;
}
$page = $screen->id;
if ( ! isset( $wp_meta_boxes ) ) {
$wp_meta_boxes = array();
}
if ( ! isset( $wp_meta_boxes[ $page ] ) ) {
$wp_meta_boxes[ $page ] = array();
}
if ( ! isset( $wp_meta_boxes[ $page ][ $context ] ) ) {
$wp_meta_boxes[ $page ][ $context ] = array();
}
foreach ( array_keys( $wp_meta_boxes[ $page ] ) as $a_context ) {
foreach ( array( 'high', 'core', 'default', 'low' ) as $a_priority ) {
if ( ! isset( $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ] ) ) {
continue;
}
// If a core box was previously removed, don't add.
if ( ( 'core' === $priority || 'sorted' === $priority )
&& false === $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ]
) {
return;
}
// If a core box was previously added by a plugin, don't add.
if ( 'core' === $priority ) {
/*
* If the box was added with default priority, give it core priority
* to maintain sort order.
*/
if ( 'default' === $a_priority ) {
$wp_meta_boxes[ $page ][ $a_context ]['core'][ $id ] = $wp_meta_boxes[ $page ][ $a_context ]['default'][ $id ];
unset( $wp_meta_boxes[ $page ][ $a_context ]['default'][ $id ] );
}
return;
}
// If no priority given and ID already present, use existing priority.
if ( empty( $priority ) ) {
$priority = $a_priority;
/*
* Else, if we're adding to the sorted priority, we don't know the title
* or callback. Grab them from the previously added context/priority.
*/
} elseif ( 'sorted' === $priority ) {
$title = $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ]['title'];
$callback = $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ]['callback'];
$callback_args = $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ]['args'];
}
// An ID can be in only one priority and one context.
if ( $priority !== $a_priority || $context !== $a_context ) {
unset( $wp_meta_boxes[ $page ][ $a_context ][ $a_priority ][ $id ] );
}
}
}
if ( empty( $priority ) ) {
$priority = 'low';
}
if ( ! isset( $wp_meta_boxes[ $page ][ $context ][ $priority ] ) ) {
$wp_meta_boxes[ $page ][ $context ][ $priority ] = array();
}
$wp_meta_boxes[ $page ][ $context ][ $priority ][ $id ] = array(
'id' => $id,
'title' => $title,
'callback' => $callback,
'args' => $callback_args,
);
}
/**
* Renders a "fake" meta box with an information message,
* shown on the block editor, when an incompatible meta box is found.
*
* @since 5.0.0
*
* @param mixed $data_object The data object being rendered on this screen.
* @param array $box {
* Custom formats meta box arguments.
*
* @type string $id Meta box 'id' attribute.
* @type string $title Meta box title.
* @type callable $old_callback The original callback for this meta box.
* @type array $args Extra meta box arguments.
* }
*/
function do_block_editor_incompatible_meta_box( $data_object, $box ) {
$plugin = _get_plugin_from_callback( $box['old_callback'] );
$plugins = get_plugins();
echo '
';
if ( $plugin ) {
/* translators: %s: The name of the plugin that generated this meta box. */
printf( __( 'This meta box, from the %s plugin, is not compatible with the block editor.' ), "{$plugin['Name']}" );
} else {
_e( 'This meta box is not compatible with the block editor.' );
}
echo '
';
/* translators: %s: A link to install the Classic Editor plugin. */
printf( __( 'Please install the Classic Editor plugin to use this meta box.' ), esc_url( $install_url ) );
echo '
';
/* translators: %s: A link to activate the Classic Editor plugin. */
printf( __( 'Please activate the Classic Editor plugin to use this meta box.' ), esc_url( $activate_url ) );
echo '
';
/* translators: %s: A link to use the Classic Editor plugin. */
printf( __( 'Please open the classic editor to use this meta box.' ), esc_url( $edit_url ) );
echo '
';
}
}
/**
* Internal helper function to find the plugin from a meta box callback.
*
* @since 5.0.0
*
* @access private
*
* @param callable $callback The callback function to check.
* @return array|null The plugin that the callback belongs to, or null if it doesn't belong to a plugin.
*/
function _get_plugin_from_callback( $callback ) {
try {
if ( is_array( $callback ) ) {
$reflection = new ReflectionMethod( $callback[0], $callback[1] );
} elseif ( is_string( $callback ) && str_contains( $callback, '::' ) ) {
$reflection = new ReflectionMethod( $callback );
} else {
$reflection = new ReflectionFunction( $callback );
}
} catch ( ReflectionException $exception ) {
// We could not properly reflect on the callable, so we abort here.
return null;
}
// Don't show an error if it's an internal PHP function.
if ( ! $reflection->isInternal() ) {
// Only show errors if the meta box was registered by a plugin.
$filename = wp_normalize_path( $reflection->getFileName() );
$plugin_dir = wp_normalize_path( WP_PLUGIN_DIR );
if ( str_starts_with( $filename, $plugin_dir ) ) {
$filename = str_replace( $plugin_dir, '', $filename );
$filename = preg_replace( '|^/([^/]*/).*$|', '\\1', $filename );
$plugins = get_plugins();
foreach ( $plugins as $name => $plugin ) {
if ( str_starts_with( $name, $filename ) ) {
return $plugin;
}
}
}
}
return null;
}
/**
* Meta-Box template function.
*
* @since 2.5.0
*
* @global array $wp_meta_boxes Global meta box state.
*
* @param string|WP_Screen $screen The screen identifier. If you have used add_menu_page() or
* add_submenu_page() to create a new screen (and hence screen_id)
* make sure your menu slug conforms to the limits of sanitize_key()
* otherwise the 'screen' menu may not correctly render on your page.
* @param string $context The screen context for which to display meta boxes.
* @param mixed $data_object Gets passed to the meta box callback function as the first parameter.
* Often this is the object that's the focus of the current screen,
* for example a `WP_Post` or `WP_Comment` object.
* @return int Number of meta_boxes.
*/
function do_meta_boxes( $screen, $context, $data_object ) {
global $wp_meta_boxes;
static $already_sorted = false;
if ( empty( $screen ) ) {
$screen = get_current_screen();
} elseif ( is_string( $screen ) ) {
$screen = convert_to_screen( $screen );
}
$page = $screen->id;
$hidden = get_hidden_meta_boxes( $screen );
printf( '
', esc_attr( $context ) );
/*
* Grab the ones the user has manually sorted.
* Pull them out of their previous context/priority and into the one the user chose.
*/
$sorted = get_user_option( "meta-box-order_$page" );
if ( ! $already_sorted && $sorted ) {
foreach ( $sorted as $box_context => $ids ) {
foreach ( explode( ',', $ids ) as $id ) {
if ( $id && 'dashboard_browser_nag' !== $id ) {
add_meta_box( $id, null, null, $screen, $box_context, 'sorted' );
}
}
}
}
$already_sorted = true;
$i = 0;
if ( isset( $wp_meta_boxes[ $page ][ $context ] ) ) {
foreach ( array( 'high', 'sorted', 'core', 'default', 'low' ) as $priority ) {
if ( isset( $wp_meta_boxes[ $page ][ $context ][ $priority ] ) ) {
foreach ( (array) $wp_meta_boxes[ $page ][ $context ][ $priority ] as $box ) {
if ( false === $box || ! $box['title'] ) {
continue;
}
$block_compatible = true;
if ( is_array( $box['args'] ) ) {
// If a meta box is just here for back compat, don't show it in the block editor.
if ( $screen->is_block_editor() && isset( $box['args']['__back_compat_meta_box'] ) && $box['args']['__back_compat_meta_box'] ) {
continue;
}
if ( isset( $box['args']['__block_editor_compatible_meta_box'] ) ) {
$block_compatible = (bool) $box['args']['__block_editor_compatible_meta_box'];
unset( $box['args']['__block_editor_compatible_meta_box'] );
}
// If the meta box is declared as incompatible with the block editor, override the callback function.
if ( ! $block_compatible && $screen->is_block_editor() ) {
$box['old_callback'] = $box['callback'];
$box['callback'] = 'do_block_editor_incompatible_meta_box';
}
if ( isset( $box['args']['__back_compat_meta_box'] ) ) {
$block_compatible = $block_compatible || (bool) $box['args']['__back_compat_meta_box'];
unset( $box['args']['__back_compat_meta_box'] );
}
}
++$i;
// get_hidden_meta_boxes() doesn't apply in the block editor.
$hidden_class = ( ! $screen->is_block_editor() && in_array( $box['id'], $hidden, true ) ) ? ' hide-if-js' : '';
echo '
' . "\n";
if ( WP_DEBUG && ! $block_compatible && 'edit' === $screen->parent_base && ! $screen->is_block_editor() && ! isset( $_GET['meta-box-loader'] ) ) {
$plugin = _get_plugin_from_callback( $box['callback'] );
if ( $plugin ) {
$meta_box_not_compatible_message = sprintf(
/* translators: %s: The name of the plugin that generated this meta box. */
__( 'This meta box, from the %s plugin, is not compatible with the block editor.' ),
"{$plugin['Name']}"
);
wp_admin_notice(
$meta_box_not_compatible_message,
array(
'additional_classes' => array( 'error', 'inline' ),
)
);
}
}
call_user_func( $box['callback'], $data_object, $box );
echo "
\n";
echo "
\n";
}
}
}
}
echo '
';
return $i;
}
/**
* Removes a meta box from one or more screens.
*
* @since 2.6.0
* @since 4.4.0 The `$screen` parameter now accepts an array of screen IDs.
*
* @global array $wp_meta_boxes Global meta box state.
*
* @param string $id Meta box ID (used in the 'id' attribute for the meta box).
* @param string|array|WP_Screen $screen The screen or screens on which the meta box is shown (such as a
* post type, 'link', or 'comment'). Accepts a single screen ID,
* WP_Screen object, or array of screen IDs.
* @param string $context The context within the screen where the box is set to display.
* Contexts vary from screen to screen. Post edit screen contexts
* include 'normal', 'side', and 'advanced'. Comments screen contexts
* include 'normal' and 'side'. Menus meta boxes (accordion sections)
* all use the 'side' context.
*/
function remove_meta_box( $id, $screen, $context ) {
global $wp_meta_boxes;
if ( empty( $screen ) ) {
$screen = get_current_screen();
} elseif ( is_string( $screen ) ) {
$screen = convert_to_screen( $screen );
} elseif ( is_array( $screen ) ) {
foreach ( $screen as $single_screen ) {
remove_meta_box( $id, $single_screen, $context );
}
}
if ( ! isset( $screen->id ) ) {
return;
}
$page = $screen->id;
if ( ! isset( $wp_meta_boxes ) ) {
$wp_meta_boxes = array();
}
if ( ! isset( $wp_meta_boxes[ $page ] ) ) {
$wp_meta_boxes[ $page ] = array();
}
if ( ! isset( $wp_meta_boxes[ $page ][ $context ] ) ) {
$wp_meta_boxes[ $page ][ $context ] = array();
}
foreach ( array( 'high', 'core', 'default', 'low' ) as $priority ) {
$wp_meta_boxes[ $page ][ $context ][ $priority ][ $id ] = false;
}
}
/**
* Meta Box Accordion Template Function.
*
* Largely made up of abstracted code from do_meta_boxes(), this
* function serves to build meta boxes as list items for display as
* a collapsible accordion.
*
* @since 3.6.0
*
* @uses global $wp_meta_boxes Used to retrieve registered meta boxes.
*
* @param string|object $screen The screen identifier.
* @param string $context The screen context for which to display accordion sections.
* @param mixed $data_object Gets passed to the section callback function as the first parameter.
* @return int Number of meta boxes as accordion sections.
*/
function do_accordion_sections( $screen, $context, $data_object ) {
global $wp_meta_boxes;
wp_enqueue_script( 'accordion' );
if ( empty( $screen ) ) {
$screen = get_current_screen();
} elseif ( is_string( $screen ) ) {
$screen = convert_to_screen( $screen );
}
$page = $screen->id;
$hidden = get_hidden_meta_boxes( $screen );
?>
$id,
'title' => $title,
'callback' => $callback,
'before_section' => '',
'after_section' => '',
'section_class' => '',
);
$section = wp_parse_args( $args, $defaults );
if ( 'misc' === $page ) {
_deprecated_argument(
__FUNCTION__,
'3.0.0',
sprintf(
/* translators: %s: misc */
__( 'The "%s" options group has been removed. Use another settings group.' ),
'misc'
)
);
$page = 'general';
}
if ( 'privacy' === $page ) {
_deprecated_argument(
__FUNCTION__,
'3.5.0',
sprintf(
/* translators: %s: privacy */
__( 'The "%s" options group has been removed. Use another settings group.' ),
'privacy'
)
);
$page = 'reading';
}
$wp_settings_sections[ $page ][ $id ] = $section;
}
/**
* Adds a new field to a section of a settings page.
*
* Part of the Settings API. Use this to define a settings field that will show
* as part of a settings section inside a settings page. The fields are shown using
* do_settings_fields() in do_settings_sections().
*
* The $callback argument should be the name of a function that echoes out the
* HTML input tags for this setting field. Use get_option() to retrieve existing
* values to show.
*
* @since 2.7.0
* @since 4.2.0 The `$class` argument was added.
*
* @global array $wp_settings_fields Storage array of settings fields and info about their pages/sections.
*
* @param string $id Slug-name to identify the field. Used in the 'id' attribute of tags.
* @param string $title Formatted title of the field. Shown as the label for the field
* during output.
* @param callable $callback Function that fills the field with the desired form inputs. The
* function should echo its output.
* @param string $page The slug-name of the settings page on which to show the section
* (general, reading, writing, ...).
* @param string $section Optional. The slug-name of the section of the settings page
* in which to show the box. Default 'default'.
* @param array $args {
* Optional. Extra arguments that get passed to the callback function.
*
* @type string $label_for When supplied, the setting title will be wrapped
* in a `