Allow to actually handle the uploads after they have been added

[robclancy]

Currently uploading is very restricted due to a lack of events that you usually get. We have no way to do anything with an upload after it is uploaded. Like this issue. #2833

I wanted to add a bunch of events and also tried delegating some from the loader. I was looking at events used in ckeditor 4 and there are a lot there I would like, however one that basically means we have the power to do what we need, https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_fileTools_uploadRepository.html#event-instanceCreated.

ckeditor/ckeditor5-upload#103

[Mgsy]

@oleq, can you take a look at it?

[Reinmar]

I can see that @oleq reviewed ckeditor/ckeditor5-upload#103 and it's on @robclancy now. I guess the ticket should be confirmed of course.

[CKEditorBot]

There has been no activity on this issue for the past year. We've marked it as stale and will close it in 30 days. We understand it may be relevant, so if you're interested in the solution, leave a comment or reaction under this issue.

[robclancy]

Yeah no activity because working out the tests/docs for a one line change was too much work to bother with when we pay so much for the license.

[Witoso]

I'm not sure why this wasn't pushed further back then. Please remember that with the license you have access to our support, which might be the best channel to bump the issues and requests.

[CKEditorBot]

There has been no activity on this issue for the past year. We've marked it as stale and will close it in 30 days. We understand it may still be relevant, so if you're interested in the solution, leave a comment or reaction under this issue.

[CKEditorBot]

We've closed your issue due to inactivity. We understand that the issue may still be relevant. If so, feel free to open a new one (and link this issue to it).