Image stay after select new files

[Cyberdr3am]

Hi,

When i change to new image i can see it without problem. When i whant to see old image, the old one stay and i can't the the new image.

Same with video preview, when i come back to old video, the last one stay on screen

The last is clear but i can't show image i already see

[thimc]

This is a known issue and is currently resolved by using the reload command in lf. I haven't had the time lately to implement a function that will solve this unexpected behavior. Feel free to make a pull request if you have time over and a fix.

[mvrozanti]

I too am having this problem.

I haven't had the time lately to implement a function that will solve this unexpected behavior.

Are we able to detect it programatically? Do you know how?

Maybe this issue should be reopened, since it was never fixed.

[reinzanini]

yeah i don't get, it it isn't fixed the issue should remain open

[x41lakazam]

Hi, I didn't really fixed it, but at least the "reload" is automatic Here is the patch: 61f80c8d78df4a518c2995097a21b24c5a4b39ea

[BurnyBoi]

This is actually a symptom of lf not calling the previewer script each time a file is navigated to. It seems to be doing some caching where once it's previewed a file for that session, it doesn't call the previewer script for that file again, thus causing the image to never be re-drawn.

I filed a bug on lf to see if we can get this caching behavior changed. The steps for proving what I stated above are listed there. If we can, this issue will be indirectly resolved as a result: https://github.com/gokcehan/lf/issues/521

[neeshy]

I've patched lf so that previews are generated on every file selection change. Here: https://github.com/gokcehan/lf/pull/522. You just have to add set nopreviewcache to your lfrc.

[neeshy]

Apparently the desired behavior is already implemented much better in lfp (https://gitlab.com/Provessor/lfp). You should use that instead. With lfp, as long as the preview script returns a non-zero exit code, the given file's preview (and only that file's preview) will be regenerated the next time it is selected. I've closed my PR after realizing this.

[codedmart]

I am not sure I understand how to clear the image properly. I have tried set nopreviewcache true. And I have also tried lfp, but still images stay after selecting new files.

[neeshy]

@codedmart Just to be clear, you don't need to have set nopreviewcache in your lfrc if you're using https://gitlab.com/Provessor/lfp. That was just for https://github.com/gokcehan/lf/pull/522. If you're using lfp, you'll need to create a cleaner script which sends ueberzug a command to clear the screen.

I've created a repo at https://github.com/neeshy/lfimg which is intended to be used with https://github.com/neeshy/lf. There, you'll find example scripts for a lf + ueberzug setup with image clearing.

[codedmart]

@neeshy I tried your repo and have tried lfp both with cleaner scripts yet I still see the problem of images sticking or previews only showing the first time I select a file.

The images stick while I browse other folders. It I select another file I do tend to see the new preview. But if I go back to a file I have already previewed it doesn’t show the preview for that file again.

[neeshy]

@codedmart Did you make sure that your previewer script exits with a non-zero exit code when generating image previews? It sounds like that's the problem. BTW, this feature was just merged into upstream lf, so you can use that instead of a fork. Here's some documentation: https://github.com/gokcehan/lf/wiki/Previews