Add onTap callback on file preview list

[gouravAntino]

Is there an existing issue for this?

• I have searched the existing issues

Package/Plugin version

4.1.0

What you'd like to happen

Provide an onTap callback in the File Previewer widget. It will be useful in case of viewing file after uploading.

Usecase:
lets assume a user upload multiple files (pdf). As its not possible to preview pdf file we can provide a callback where we get a Platform file as argument. And using callback we can open file using external package.

Alternatives you've considered

No response

Aditional information

[gouravAntino]

I would like to work on this issue as well. If this feature suits the package vision

[deandreamatias]

@gouravAntino I think that is could be useful, but isn't a priority for package.
If you implement and open a PR, I would review and merge when posible.