Actions - JoryHogeveen/widget-css-classes GitHub Wiki
widget_css_classes_form
Add extra fields to the widget form.
@param string $fields Current HTML.
@param array $instance The widget instance.
@return string
widget_css_classes_update
Runs after updating the widget data (before the actual DB update)
@param array $instance
@param array $new_instance
widget_css_classes_add_classes
Modify the widget parameters, normally to add extra classes.
@param array $params
@param string $widget_id
@param int $widget_num
@param array $widget_opt
@param WP_Widget $widget_obj
@return array
widget_css_classes_settings
Add items fields to the settings page.