[GNOME Linux] No window decoration (shadow) if a window title bar style is custom

[proninyaroslav]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.92.0
• OS Version: Fedora 40 (GNOME 46)

Steps to Reproduce:

1. Set window.titleBarStyle options to custom in the settings
2. Run VSCode in the Wayland mode, for example, type it in the terminal:

$ ELECTRON_OZONE_PLATFORM_HINT=auto code

Expected behaviour

There should be a window decoration (shadow) as it is in XWayland compatibility mode:

Actual behaviour

There is no window decoration/shadow:

But If I set window.titleBarStyle to native, the window decoration/shadow appears:

[proninyaroslav]

Tested on 1.92.1, still has problem.

[proninyaroslav]

I noticed another fact: in Wayland mode, a new window opens as Visual Studio Code - URL Handler, and not as it should be (Visual Studio Code). Maybe this is the reason.

[cbrnr]

I can confirm the missing window decorations (i.e. shadows) when running on GNOME/Wayland when using the custom title bar style (the default). It would be really nice if this worked, because

1. the native title bar is not an option for me (the layout shortcut buttons are missing and it takes up more space), and
2. running via XWayland is also not an option, because I use fractional scaling (150%), which is very blurry in XWayland (but super crisp on Wayland).

Regarding the comment on "Visual Studio Code - URL Handler", I still haven't figured out why there are two desktop files, but you can at least fix the issue with two task bar entries (and/or missing icons) by setting StartupWMClass=code-url-handler in ~/.local/share/applications/code.desktop (create a copy of /usr/share/applications/code.desktop in that location and edit the copy in your home folder), see #129953 (comment) and #129953 (comment).

[proninyaroslav]

@cbrnr
Yes, I was a little confused about URL Handler. I eventually found that even with the system window frame, VSCode still launched as URL Handler.

[jhasse]

I think it's one of these upstream bugs and nothing VSCode could (or should) do itself about it:

• https://issues.chromium.org/issues/40186366
• [Feature Request]: Draw GTK window shadow when application have custom window frame electron/electron#43721

[proninyaroslav]

@jhasse
Well, as a workaround, we can add a border to at least somehow distinguish the window frame from the rest.

[cbrnr]

However, Google Chrome does have borders and a shadow even though it is the basis of Electron (and it also has a custom title bar). So it might be worth looking into how they achieve this.

[proninyaroslav]

@cbrnr
I confirm, I'm using a custom frame in Chrome and it has a shadow.