Clear and concise description of the problem

I want user to pick a file to upload, but i don't know if user still selecting the file or he already closed the picker.

onChange triggers only after files selection/reset, but not after dialog just closed and that's ok, we just need another handle for that

Suggested solution

I propose to extend useFileDialog with additional handler, named onCancel, which will be coupled with native oncancel event and fire a callback when user just closes the picker without picking a file

Alternative

Also I can suggest making open() to return a promise (it's void now), which resolves on file changes and rejects on cancel. It solves our case specifically, but could be a breaking change, especially unhandled rejection

Additional context

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.