onBeforePopupOpening property
a callBack will be called before opening le popup if the callBack return FALSE, the opening of the popup will be cancelled
Implementation
final BeforePopupOpening<T>? onBeforePopupOpening;
a callBack will be called before opening le popup if the callBack return FALSE, the opening of the popup will be cancelled
final BeforePopupOpening<T>? onBeforePopupOpening;