[BUG] In window mode, some apps don't have an icon

[Luzzifus]

Rofi version (rofi -v)

1.7.5-189-g11d801ea-dirty (next)

Configuration

https://gist.github.com/Luzzifus/468af44845b0729358dbd8a6bab5a3be

Theme

https://gist.github.com/Luzzifus/53e44e97dd9171f4e8a730d1adfc0321

Timing report

No response

Launch command

rofi -show window

Step to reproduce

• get one of the problematic applications listed below
• execute launch command
• look at icons of application windows

Expected behavior

All application windows in the list should have an icon.

Actual behavior

This works for most applications, but not all. The applications in question do have an icon in drun mode, but not in window mode when they have been started already. There is no error message, just the space for the icon is blank.

Some examples for applications missing icons in window mode:

• Freetube (flatpak)
• Upnote - (snap)
• Pinta - (flatpak)
• Paleta - (flatpak)
• gnome-multi-writer

Additional information

• I am running Pop! OS 22.04.
• This problem occurred for me in v1.7.1 (via apt) as well as the latest version (next branch, compiled from source).
• Other launchers can display the icons fine (e.g. the Cosmic Launcher in Pop! OS).

Using wayland display server protocol

• No, I don't use the wayland display server protocol

I've checked if the issue exists in the latest stable release

• Yes, I have checked the problem exists in the latest stable version

[DaveDavenport]

There is no relation between "run" and "window" in source of icon.

Therefor if the application does not set an icon on its windows, and the class name does not resolve to an icon, rofi has nothing to display .

I am also confused, "gnome-multi-writer" has no icon under "run" only under "drun" on pop! os 22.04..

[Luzzifus]

I am also confused, "gnome-multi-writer" has no icon under "run" only under "drun" on pop! os 22.04..

Yes, I meant drun, sorry.

[Luzzifus]

Therefor if the application does not set an icon on its windows, and the class name does not resolve to an icon, rofi has nothing to display.

So is there a way I can "help" rofi resolve the icons? E.g. by manually placing them in the right spot with a resolvable name?

[DaveDavenport]

This:
cp "/usr/share/icons/hicolor/256x256/apps/org.gnome.MultiWriter.png" ~/.local/share/icons/gnome-multi-writer.png

should do it.

[Luzzifus]

Thanks, that worked. I was able to fix the other apps that way too.

[Luzzifus]

I think the frequency of this issue occurring could be reduced by searching for the executable name in .desktop files. In all of my cases the executable name is either the filename of the respective .desktop file itself (case insensitive comparison) or is part of its command field. Then the icon could be resolved from the desktop file itself.

[DaveDavenport]

That won't work in rofi's design, there is no link between desktop file and window, or "executable" and window.

I prefer it if applications just properly set an icon on their window.

[github-actions]

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