Bring back Qt4 X11 session management functionality.

Added QXcbSessionManager to the Xcb plugin.
QXcbSessionManager inherits from QPlatformSessionManager, it's a port of
QSessionManager as it is in Qt 4.8.
Minor changes also in QPlatformSessionManager and QGuiApplication to
hook it up.

Task-number: QTBUG-28228
Task-number: QTBUG-30011
Task-number: QTBUG-33033
Change-Id: I50b33d05a1e32c5278dea339f693713acc870a70
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: David Faure <david.faure@kdab.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/src/plugins/platforms/xcb/qxcbsessionmanager.h b/src/plugins/platforms/xcb/qxcbsessionmanager.h
new file mode 100644
index 0000000000..0dca36d16f
--- /dev/null
+++ b/src/plugins/platforms/xcb/qxcbsessionmanager.h
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Teo Mrnjavac <teo@kde.org>
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QXCBSESSIONMANAGER_H
+#define QXCBSESSIONMANAGER_H
+
+#include <qpa/qplatformsessionmanager.h>
+
+QT_BEGIN_NAMESPACE
+
+class QEventLoop;
+
+class QXcbSessionManager : public QPlatformSessionManager
+{
+public:
+    QXcbSessionManager(const QString &id, const QString &key);
+    virtual ~QXcbSessionManager();
+
+    void *handle() const;
+
+    void setSessionId(const QString &id);
+    void setSessionKey(const QString &key);
+
+    bool allowsInteraction() Q_DECL_OVERRIDE;
+    bool allowsErrorInteraction() Q_DECL_OVERRIDE;
+    void release() Q_DECL_OVERRIDE;
+
+    void cancel() Q_DECL_OVERRIDE;
+
+    void setManagerProperty(const QString &name, const QString &value) Q_DECL_OVERRIDE;
+    void setManagerProperty(const QString &name, const QStringList &value) Q_DECL_OVERRIDE;
+
+    bool isPhase2() const Q_DECL_OVERRIDE;
+    void requestPhase2() Q_DECL_OVERRIDE;
+
+    void appCommitData() Q_DECL_OVERRIDE;
+    void appSaveState() Q_DECL_OVERRIDE;
+
+    void exitEventLoop();
+
+private:
+    QEventLoop *m_eventLoop;
+
+    Q_DISABLE_COPY(QXcbSessionManager)
+};
+
+QT_END_NAMESPACE
+
+#endif //QXCBSESSIONMANAGER_H