WP_Widget::_get_form_callback()
Method: Retrieves the form callback.
Source: wp-includes/class-wp-widget.php:321
WP_Widget::is_preview()
Method: Determines whether the current request is inside the Customizer preview.
Source: wp-includes/class-wp-widget.php:339
WP_Widget::display_callback()
Method: Generates the actual widget content (Do NOT override).
Source: wp-includes/class-wp-widget.php:360
widget_display_callback
Filter Hook: Filters the settings for a particular widget instance.
Source: wp-includes/class-wp-widget.php:383