onClose props has 1s delay

[DjovDev]

        toast(<Msg/>, { 
          onClose : () => console.log('closing'), //this has aprox 1s delay
          onOpen : () => console.log('opening') //this is instant
        })

[DjovDev]

Possible duplicate of #487 ?

[fkhadra]

Hey @DjovDev, onClose is called after the exit transition is completed. Even though the notification is not visible on the screen when removed, the exit animation is not completed, hence the delay.

[claytonrothschild]

I also ran into this problem, where the delay causes the user to lose his "instruction" but he can still take his "action" within one second. This causes UX problems.

I dont want to convolute the library (which is great), but I do propose exploring these additional callbacks:

• onDismiss or onAutoClose - when the toast is dismissed automatically rather than thru user interaction
• onCloseStart and onCloseEnd - self-explanatory

[jihea-park]

@fkhadra
Same opinion as @claytonrothschild .
what about add onCloseStart handler?