Background change doesn't always happen

[lukors]

If the style is changed by the schedule it doesn't always trigger the background change.

See this video to see what happens:

Peek.2021-12-14.20-40.mp4

Unfortunately, the app does not generate any log messages.

[JeysonFlores]

Mmm, Thanks for test it! I'll be researching a little bit about how does the scheduler work. Depending on how it works it may or may not be misbehavior of the app.

[JeysonFlores]

I have good and bad news

[JeysonFlores]

SwitcherBug.4.mp4

Tip: fondo.png (amogus wallpaper) - b.jpg (pink wallpaper)
If you see from the 0:14 the log says that the pink wallpaper was set, but the amogus wallpaper was still there. Also if you see at the 0:36 it looks how the pink wallpaper was set by half a second and then the amogus wallpaper was set again.....
I think this is due to the contractor. If you see the logs whenever that bug appears, the log says the right wallpaper was set. I looked at the code of the Desktop Plug and it seems it uses other method for changing wallpapers (after all it's installed in a system-level, so the fact that this app must be packaged into flatpak means that I cannot do certain things.

[JeysonFlores]

Ok, after debugging the wallpaper setting thing, it seems the code I wrote works fine. The console throws the message about the signal being triggered, the correct mode changed, it also has no errors on finding the wallpaper nor setting it up. I think I'll delegate this error to the contractor provided by the elementary team to interact with the wallpaper set of the desktop.

[ChildishGiant]

I didn't have run on startup selected but launching switcher didn't fix the wallpaper. Maybe this can help reproduce?

[JeysonFlores]

Well there are good and bad news about this issue.
The good news: Probably this issue will be fixed
The bad news: It might take a while.

In the submission request Danielle told me that using the contractor to change wallpapers is OK, but there's available a Portal to change wallpapers. I'm still studying about D-Bus, but I hope soon I can start adapting the codebase to it.