From 012c64b054a5017a64d24f806fcc9c61e0ee3e5d Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Wed, 20 Mar 2024 14:49:20 +0200
Subject: [PATCH] Fix warning about nullptr sender in QObject::connect()

When one sets "no border" property, the decoration can be null.
---
 src/xdgshellwindow.cpp | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/xdgshellwindow.cpp b/src/xdgshellwindow.cpp
index 9e08aba4a5..6b13df5b1f 100644
--- a/src/xdgshellwindow.cpp
+++ b/src/xdgshellwindow.cpp
@@ -707,11 +707,13 @@ void XdgToplevelWindow::handleRolePrecommit()
 {
     auto configureEvent = static_cast<XdgToplevelConfigure *>(lastAcknowledgedConfigure());
     if (configureEvent && decoration() != configureEvent->decoration.get()) {
-        connect(configureEvent->decoration.get(), &KDecoration2::Decoration::bordersChanged, this, [this]() {
-            if (!isDeleted()) {
-                scheduleConfigure();
-            }
-        });
+        if (configureEvent->decoration) {
+            connect(configureEvent->decoration.get(), &KDecoration2::Decoration::bordersChanged, this, [this]() {
+                if (!isDeleted()) {
+                    scheduleConfigure();
+                }
+            });
+        }
 
         setDecoration(configureEvent->decoration);
         updateShadow();