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From a1d6aa2078b8a840469f13ae720669cb4f99291d Mon Sep 17 00:00:00 2001
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From: David Edmundson <davidedmundson@kde.org>
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Date: Fri, 14 May 2021 13:23:24 +0100
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Subject: [PATCH 11/40] Client: Disconnect registry listener on destruction
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If a display outlives a QWaylandClientExtension and a new global is
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announced we end up delivering an event to a now deleted extension which
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will crash.
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Change-Id: Idc0de40be61a2f7627ab4963e1fe29b22fbf3f04
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(cherry picked from commit c4ba37cd2f8cb81b9438b56ac604fc2f3e45083c)
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---
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src/client/global/qwaylandclientextension.cpp | 7 +++++++
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src/client/global/qwaylandclientextension.h | 1 +
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2 files changed, 8 insertions(+)
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diff --git a/src/client/global/qwaylandclientextension.cpp b/src/client/global/qwaylandclientextension.cpp
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index 125b1e19..797b06fe 100644
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--- a/src/client/global/qwaylandclientextension.cpp
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+++ b/src/client/global/qwaylandclientextension.cpp
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@@ -88,6 +88,13 @@ QWaylandClientExtension::QWaylandClientExtension(const int ver)
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QMetaObject::invokeMethod(this, "addRegistryListener", Qt::QueuedConnection);
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}
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+QWaylandClientExtension::~QWaylandClientExtension()
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+{
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+ Q_D(QWaylandClientExtension);
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+ if (d->registered && !QCoreApplication::closingDown())
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+ d->waylandIntegration->display()->removeListener(&QWaylandClientExtensionPrivate::handleRegistryGlobal, this);
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+}
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+
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QtWaylandClient::QWaylandIntegration *QWaylandClientExtension::integration() const
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{
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Q_D(const QWaylandClientExtension);
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diff --git a/src/client/global/qwaylandclientextension.h b/src/client/global/qwaylandclientextension.h
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index 98272e57..5bd28398 100644
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--- a/src/client/global/qwaylandclientextension.h
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+++ b/src/client/global/qwaylandclientextension.h
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@@ -63,6 +63,7 @@ class Q_WAYLAND_CLIENT_EXPORT QWaylandClientExtension : public QObject
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Q_PROPERTY(bool active READ isActive NOTIFY activeChanged)
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public:
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QWaylandClientExtension(const int version);
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+ ~QWaylandClientExtension();
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QtWaylandClient::QWaylandIntegration *integration() const;
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int version() const;
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--
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2.35.1
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