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facundoolano / feedi

A personal news aggregator and Mastodon client
GNU Affero General Public License v3.0
888 stars 28 forks source link

Sometimes UI starts scrolling and jump by itself #92

Open matclab opened 8 months ago

matclab commented 8 months ago

First thank you for this nice idea and implementation !

Sometimes, when reading the posts, UI starts scrolling and jumping back and scrolling again. I guess it may be linked to RSS updates in background, but I don't know where to start to investigate about it.

I'll post some comment if I find something better to characterize the problem.

Version 906d8e059190cf14b363fbb11d99b51700a66280 hosted on fly.io.

facundoolano commented 8 months ago

Do you see this in the mobile or desktop UI or both? Let me know if you have some steps to reproduce.

I guess it may be linked to RSS updates in background, but I don't know where to start to investigate about it.

There's no live updating of the feed so this shouldn't be the case.

The one scenario where I've perceived something like what you describe is when pining an entry: in that case the pins at the top get updated to include the new one and that causes the scroll position to 'jump'. I couldn't figure out how to tell the browser to "lock" on the currently visible entry to prevent that jump. I'm considering removing the live update in that case to prevent that artifact.

matclab commented 8 months ago

I've installed the last main before trying more debugging, but I've stumbled upon what's look like a DB which as not been migrated correctly:

sqlite3.OperationalError: no such column: entries.sort_date

Is there something special to do for migrations ?

facundoolano commented 8 months ago

Yes, you need to run alembic upgrade head from within the virtualenv. I use this command to update the code, in case it helps.

matclab commented 8 months ago

Thanks, back to a working version.

For now, I've only seen the problem on desktop and I guess it is linked with the "mark view as read" functionality. I scroll to view some articles and if I come back, the titles are still blue (unread ?), I continue scrolling down and suddenly the view comes back to the article where I started. It has now a black title (read ?). I'll try to have a look at the sources this w-e (hopefully).

As a side note, it would be nice to have a "next button" to go to the next article without scrolling (which alleviates the eye strain due to scrolling).