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From 0b8b965626c7d02ce885187fa46fe6c69af3ede3 Mon Sep 17 00:00:00 2001
From: David Edmundson <davidedmundson@kde.org>
Date: Fri, 14 May 2021 13:23:24 +0100
Subject: [PATCH] Client: Disconnect registry listener on destruction
If a display outlives a QWaylandClientExtension and a new global is
announced we end up delivering an event to a now deleted extension which
will crash.
Change-Id: Idc0de40be61a2f7627ab4963e1fe29b22fbf3f04
(cherry picked from commit c4ba37cd2f8cb81b9438b56ac604fc2f3e45083c)
---
src/client/global/qwaylandclientextension.cpp | 7 +++++++
src/client/global/qwaylandclientextension.h | 1 +
2 files changed, 8 insertions(+)
--- a/src/client/global/qwaylandclientextension.cpp
+++ b/src/client/global/qwaylandclientextension.cpp
@@ -88,6 +88,13 @@ QWaylandClientExtension::QWaylandClientExtension(const int ver)
QMetaObject::invokeMethod(this, "addRegistryListener", Qt::QueuedConnection);
}
+QWaylandClientExtension::~QWaylandClientExtension()
+{
+ Q_D(QWaylandClientExtension);
+ if (d->registered && !QCoreApplication::closingDown())
+ d->waylandIntegration->display()->removeListener(&QWaylandClientExtensionPrivate::handleRegistryGlobal, this);
+}
+
QtWaylandClient::QWaylandIntegration *QWaylandClientExtension::integration() const
{
Q_D(const QWaylandClientExtension);
--- a/src/client/global/qwaylandclientextension.h
+++ b/src/client/global/qwaylandclientextension.h
@@ -63,6 +63,7 @@ class Q_WAYLAND_CLIENT_EXPORT QWaylandClientExtension : public QObject
Q_PROPERTY(bool active READ isActive NOTIFY activeChanged)
public:
QWaylandClientExtension(const int version);
+ ~QWaylandClientExtension();
QtWaylandClient::QWaylandIntegration *integration() const;
int version() const;
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