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wp_register_widget_control

Definition:
function wp_register_widget_control($id, $name, $control_callback, $options = array() {}

Registers widget control callback for customizing options.
The options contains the ‘height’, ‘width’, and ‘id_base’ keys. The ‘height’ option is never used. The ‘width’ option is the width of the fully expanded control form, but try hard to use the default width. The ‘id_base’ is for multi-widgets (widgets which allow multiple instances such as the text widget), an id_base must be provided. The widget id will end up looking like {$id_base}-{$unique_number}.

Parameters

  • int|string $id: Sidebar ID.
  • string $name: Sidebar display name.
  • callback $control_callback: Run when sidebar is displayed.
  • array|string $options: Optional. Widget options. See above long description.
  • mixed $params,…: Optional. Additional parameters to add to widget.

Source code

function wp_register_widget_control($id, $name, $control_callback, $options = array()) {

	global $wp_registered_widget_controls, $wp_registered_widget_updates, $wp_registered_widgets, $_wp_deprecated_widgets_callbacks;



	$id = strtolower($id);

	$id_base = _get_widget_id_base($id);



	if ( empty($control_callback) ) {

		unset($wp_registered_widget_controls[$id]);

		unset($wp_registered_widget_updates[$id_base]);

		return;

	}



	if ( in_array($control_callback, $_wp_deprecated_widgets_callbacks, true) && !is_callable($control_callback) ) {

		if ( isset($wp_registered_widgets[$id]) )

			unset($wp_registered_widgets[$id]);



		return;

	}



	if ( isset($wp_registered_widget_controls[$id]) && !did_action( 'widgets_init' ) )

		return;



	$defaults = array('width' => 250, 'height' => 200 ); // height is never used

	$options = wp_parse_args($options, $defaults);

	$options['width'] = (int) $options['width'];

	$options['height'] = (int) $options['height'];



	$widget = array(

		'name' => $name,

		'id' => $id,

		'callback' => $control_callback,

		'params' => array_slice(func_get_args(), 4)

	);

	$widget = array_merge($widget, $options);



	$wp_registered_widget_controls[$id] = $widget;



	if ( isset($wp_registered_widget_updates[$id_base]) )

		return;



	if ( isset($widget['params'][0]['number']) )

		$widget['params'][0]['number'] = -1;



	unset($widget['width'], $widget['height'], $widget['name'], $widget['id']);

	$wp_registered_widget_updates[$id_base] = $widget;

}

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