From 1d906169d807d93fbe19dcebfd9d56712cadc84c Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Wed, 26 May 2021 11:19:09 +0300
Subject: [PATCH] Discard SurfaceItemXwayland's quads when shape changes

The SurfaceItemXwayland has to re-build quads if the shape changes.

The SurfaceItemX11 doesn't need a similar fix as it already discards
quads whenever the shape region changes.
---
 src/surfaceitem_wayland.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/surfaceitem_wayland.cpp b/src/surfaceitem_wayland.cpp
index fdfbd4286d..9689d85a4f 100644
--- a/src/surfaceitem_wayland.cpp
+++ b/src/surfaceitem_wayland.cpp
@@ -199,6 +199,8 @@ void SurfacePixmapWayland::setBuffer(KWaylandServer::BufferInterface *buffer)
 SurfaceItemXwayland::SurfaceItemXwayland(Scene::Window *window, Item *parent)
     : SurfaceItemWayland(window->window()->surface(), window, parent)
 {
+    const Toplevel *toplevel = window->window();
+    connect(toplevel, &Toplevel::geometryShapeChanged, this, &SurfaceItemXwayland::discardQuads);
 }
 
 QRegion SurfaceItemXwayland::shape() const