Bug: Anki doesn't get tiled

[yannikthegenius]

Issue/Bug Description/Video Capture/Screenshots

Hello,

this issue still exists in 2025: #219

Anki doesn't get tiled. When changing to floating mode, it also doesn't work. When maximizing the application, everything looks normal; no issues. But the application doesn't tile automatically.
This is the only application I experienced this so far; I've been using this extension for about 2 years and this is the only exception. May you check? Thanks!

Steps to reproduce

1. Open Anki
2. The application doesn't tile even though auto tiling is turned on. If there are no opened applications expect for Anki, it should automatically go into fullscreen, which is not the case.

Distribution and Linux version

GNOME 48
Fedora 42

Journal Logs from the last hour

#

GNOME Shell version

48

Forge version

48.4-88

Other installed/enabled extensions

#

Monitor Setup

4 Monitors

Other Notes

No response

[razedk]

I have the same issue for Opera which is a Flathub application. I think the issue is that wmClass is empty for this application.

In the function called isFloatingExempt there is the following check, it is the 5th line that causes the problem.

    let floatByType =
      windowType === Meta.WindowType.DIALOG ||
      windowType === Meta.WindowType.MODAL_DIALOG ||
      metaWindow.get_transient_for() !== null ||
      metaWindow.get_wm_class() === null ||
      windowTitle === null ||
      windowTitle === "" ||
      windowTitle.length === 0 ||
      !metaWindow.allows_resize();

You can check whether your application is also missing the wmClass by doing the following:

1. Open up your application
2. Open Looking Glass (part of GNOME) by pressing ALT-F2 then type lg
3. Go to the Windows tab and find your application in the list
4. Press ESC to quit Looking Glass