https://bugs.documentfoundation.org/show_bug.cgi?id=174207
Bug ID: 174207
Summary: Missing parent window
Product: LibreOffice
Version: 26.8.1.1 release
Hardware: All
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Calc
Assignee: [email protected]
Reporter: [email protected]
Description:
I hit this bug in my work but used AI to help solve it. Do with this what you
will.
Text Import (CSV) dialog sets xdg_toplevel.set_parent(nil) under native
Wayland, so tiling window managers treat it as a standalone window instead of a
dialog
Steps to Reproduce:
1. Run LibreOffice natively under a Wayland compositor whose window manager
doesn't float every new top-level window by default (e.g. Hyprland, a tiling
WM).
2. Open or import a .csv file in Calc so the Text Import wizard dialog appears.
3. Capture the Wayland protocol traffic for the dialog's surface, e.g.
WAYLAND_DEBUG=1 soffice --calc file.csv.
Actual Results:
The dialog's xdg_toplevel explicitly declares no parent:
-> xdg_wm_base#34.get_xdg_surface(new id xdg_surface#48, wl_surface#47)
-> xdg_surface#48.get_toplevel(new id xdg_toplevel#49)
-> xdg_toplevel#49.set_parent(nil)
-> xdg_toplevel#49.set_app_id("soffice")
With no parent set, the dialog is indistinguishable at the protocol level from
an ordinary top-level application window. A tiling WM without app-specific
heuristics tiles it like any other window instead of recognizing it as a modal
dialog. In my case (Hyprland), this caused the app's own splash screen — a
separate, correctly-floating window — to render on top of the tiled dialog and
intercept all mouse clicks meant for it (keyboard Tab/Enter still worked, since
the dialog held input focus).
Expected Results:
A modal wizard dialog spawned from an open document should set its xdg_toplevel
parent to the owning document window via xdg_toplevel.set_parent(), per the
xdg-shell protocol, so Wayland compositors can treat it correctly (float it,
stack it above its parent, etc.) without needing per-application window-manager
rules.
Reproducible: Always
User Profile Reset: No
Additional Info:
Worked around locally with a Hyprland window rule that force-floats this dialog
by matching its title — a per-user compositor-side mitigation, not a fix for
the missing parent relationship.
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