Registers the form callback for a widget.
Parameters
$idint|stringrequired- Widget ID.
$namestringrequired- Name attribute for the widget.
$form_callbackcallablerequired- Form callback.
$optionsarrayoptional- Widget control options. See wp_register_widget_control() .
More Arguments from wp_register_widget_control( … $options )
Array or string of control options.
heightintNever used. Default 200.widthintWidth of the fully expanded control form (but try hard to use the default width).
Default 250.id_baseint|stringRequired for multi-widgets, i.e widgets that allow multiple instances such as the text widget. The widget ID will end up looking like{$id_base}-{$unique_number}.
Default:
array() $paramsmixedoptional- Optional additional parameters to pass to the callback function when it’s called.
Source
function _register_widget_form_callback( $id, $name, $form_callback, $options = array(), ...$params ) {
global $wp_registered_widget_controls;
$id = strtolower( $id );
if ( empty( $form_callback ) ) {
unset( $wp_registered_widget_controls[ $id ] );
return;
}
if ( isset( $wp_registered_widget_controls[ $id ] ) && ! did_action( 'widgets_init' ) ) {
return;
}
$defaults = array(
'width' => 250,
'height' => 200,
);
$options = wp_parse_args( $options, $defaults );
$options['width'] = (int) $options['width'];
$options['height'] = (int) $options['height'];
$widget = array(
'name' => $name,
'id' => $id,
'callback' => $form_callback,
'params' => $params,
);
$widget = array_merge( $widget, $options );
$wp_registered_widget_controls[ $id ] = $widget;
}
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