Client: do not take decoration shadows into account when placing popups

The anchor rectangle is relative to the window geometry, which according
to xdg-shell specs shouldn't include invisible portions like shadows.
This causes all popups be wrongly positioned when drop-shadows are used.

Change-Id: Iac30ab264599f9898f3ddecd7f0c5f2aca824ad6
Reviewed-by: David Edmundson <davidedmundson@kde.org>
(cherry picked from commit 14c0293fe6e55317e8a645f6a156b5973190cd8e)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp b/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
index d7a5f5659..ce19a0013 100644
--- a/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
+++ b/src/plugins/shellintegration/xdg-shell/qwaylandxdgshell.cpp
@@ -439,8 +439,8 @@ void QWaylandXdgSurface::setPopup(QWaylandWindow *parent)
     QPoint transientPos = m_window->geometry().topLeft(); // this is absolute
     transientPos -= parent->geometry().topLeft();
     if (parent->decoration()) {
-        transientPos.setX(transientPos.x() + parent->decoration()->margins().left());
-        transientPos.setY(transientPos.y() + parent->decoration()->margins().top());
+        transientPos.setX(transientPos.x() + parent->decoration()->margins(QWaylandAbstractDecoration::ShadowsExcluded).left());
+        transientPos.setY(transientPos.y() + parent->decoration()->margins(QWaylandAbstractDecoration::ShadowsExcluded).top());
     }
     positioner->set_anchor_rect(transientPos.x(), transientPos.y(), 1, 1);
     positioner->set_anchor(QtWayland::xdg_positioner::anchor_top_left);