https://bugs.kde.org/show_bug.cgi?id=449620
Bug ID: 449620
Summary: Pointer constraints protocol not honored when
switching from server side decorations to client side
Product: kwin
Version: 5.23.5
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: m...@bolhuis.dev
Target Milestone: ---
SUMMARY
On a Wayland session a native Wayland client created with pointer constraints
and server side decoration will no longer constrain the pointer if the client
dynamically switches to client side decoration whilst the pointer is
constrained.
STEPS TO REPRODUCE
1. Create a simple Wayland client that uses xdg-shell, pointer-constraints and
xdg-decoration protocols.
2. Create an xdg_toplevel
3. Request SSD for the xdg_toplevel using zxdg_toplevel_decoration_v1_set_mode
4. Constrain the pointer to the wl_surface associated with the xdg_toplevel
using zwp_pointer_constraints_v1_confine_pointer
5. Request CSD
6. Move the pointer outside the surface along the top edge
OBSERVED RESULT
The title bar is removed however the pointer is no longer contained by the top
edge of the surface (where the title bar used to be), however the other 3 edges
do still constrain the pointer.
EXPECTED RESULT
All four edges should still constrain the pointer.
LIST OF SCENARIOS
SSD -> Constrain Pointer -> CSD -> Bug
SSD -> CSD -> SSD -> Constrain Pointer -> CSD -> No Bug
SSD -> CSD -> Constrain Pointer -> Bug
SSD -> CSD -> SSD -> CSD -> Constrain Pointer -> No Bug
SOFTWARE/OS VERSIONS
Linux: ArchLinux 5.15.19-lts
KDE Plasma Version: 5.23.5
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
Wayland-Protocols Version: 1.25
NVIDIA Driver Version: 510.47.03
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