Add when-prop in the vein of react-reveal

[ljosberinn]

Hi,

first, let me thank you for this modern alternative to react-reveal! Was mostly a plug- & play-replacement process.

However, one feature I'd like to see is missing: the when prop.

Example use case:

• login form shakes on error: <Shake when={!!error}>{children}</Shake>

[morellodev]

Hi @ljosberinn,

stay tuned for future updates 🚀

[PeterKottas]

Bump on this.

[morellodev]

Hi,

you can use the reverse prop as a temp workaround by binding it to a state variable of your component.

I have no plan to implement the when prop in the near future, but you can submit a PR if you would implement this in a performant way :)

[PeterKottas]

So let me see if I understand this. If you provide reverse={true}, it simply cancels/rewinds the already visible animation? I think it might be somewhat counterintuitive and the when props seem like a more straight forward solution. I personally don't need it, but it's reasonable to expect somebody who does to bring it on board. It's open-source after all ;)

[morellodev]

This is out of scope.