Persist avatar for editors in comments

[juliusknorr]

Describe the bug When a user leaves a comment by default the avatar sent over as UserExtraInfo will be displayed next to any comment added to the document by the user. However after the user leaves the editing, the avatar information is lost.

Additional context

As per discussion with @kendy it would be required to have a way to persist the avatar image in the document. From the Nextcloud perspective it would be enough to persist the URL to the avatar, however for potential usage in offline Collabora Office it would make more sense to keep a copy of the actual image.

Open questions:

• Either store the URL / Image or both
• Proper representation within the file
  • Support may depend on the different capabilities of the file formats
  • for OpenDocument formats it would be required to extend the implementation for that

Would fix https://github.com/nextcloud/richdocuments/issues/2049

Leaving this up to @kendy for further evaluation of the technical details on the core/cool side.

[Darshan-upadhyay1110]

hello @juliushaertl can you explain bit more on this issue as i am not getting the idea what to look here ?

[juliusknorr]

Any specific question? Maybe to summarize the problem itself in slightly different words:

An avatar can be passed to Collabora as a remote URL which is what we do with Nextcloud through UserExtraInfo. However when the user leaves the document, the avatar URL is not available anymore in Collabora as the user was removed from the list of views.

Steps to reproduce:

• User A opens a document
• User A adds a comment
• User A leaves the document
• User B opens the document and checks the comment 💥 The avatar is not present