Add native support for D-Bus global menu

The protocol was originally developed by Canonical, currently supported
by Unity and Plasma.

Adjust some tests to use the non-native menu bar when they require it.

[ChangeLog][XCB / X11] QMenuBar uses the unified D-Bus AppMenu menubar
when the desktop environment supports it.

Change-Id: Iea74b40522573bcc4f70168fe7fa2a49b4f3fc21
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>

1 files changed, 127 insertions, 0 deletions

diff --git a/src/platformsupport/dbusmenu/qdbusmenuregistrarproxy_p.h b/src/platformsupport/dbusmenu/qdbusmenuregistrarproxy_p.h
new file mode 100644
index 0000000000..c92de0a140
--- /dev/null
+++ b/src/platformsupport/dbusmenu/qdbusmenuregistrarproxy_p.h
@@ -0,0 +1,127 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 Dmitry Shachnev <mitya57@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module 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 The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+ * This file was originally created by qdbusxml2cpp version 0.8
+ * Command line was: qdbusxml2cpp -p qdbusmenuregistrarproxy ../../3rdparty/dbus-ifaces/com.canonical.AppMenu.Registrar.xml
+ *
+ * However it is maintained manually.
+ */
+
+#ifndef QDBUSMENUREGISTRARPROXY_P_H
+#define QDBUSMENUREGISTRARPROXY_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/QObject>
+#include <QtCore/QByteArray>
+#include <QtCore/QList>
+#include <QtCore/QString>
+#include <QtCore/QVariant>
+#include <QtDBus/QDBusAbstractInterface>
+#include <QtDBus/QDBusConnection>
+#include <QtDBus/QDBusReply>
+
+QT_BEGIN_NAMESPACE
+
+/*
+ * Proxy class for interface com.canonical.AppMenu.Registrar
+ */
+class QDBusMenuRegistrarInterface : public QDBusAbstractInterface
+{
+    Q_OBJECT
+public:
+    static inline const char *staticInterfaceName()
+    {
+        return "com.canonical.AppMenu.Registrar";
+    }
+
+public:
+    explicit QDBusMenuRegistrarInterface(const QString &service,
+                                         const QString &path,
+                                         const QDBusConnection &connection,
+                                         QObject *parent = nullptr);
+
+    ~QDBusMenuRegistrarInterface();
+
+public Q_SLOTS: // METHODS
+    QDBusPendingReply<QString, QDBusObjectPath> GetMenuForWindow(uint windowId)
+    {
+        QList<QVariant> argumentList;
+        argumentList << QVariant::fromValue(windowId);
+        return asyncCallWithArgumentList(QStringLiteral("GetMenuForWindow"), argumentList);
+    }
+    QDBusReply<QString> GetMenuForWindow(uint windowId, QDBusObjectPath &menuObjectPath)
+    {
+        QList<QVariant> argumentList;
+        argumentList << QVariant::fromValue(windowId);
+        QDBusMessage reply = callWithArgumentList(QDBus::Block, QStringLiteral("GetMenuForWindow"), argumentList);
+        QList<QVariant> arguments = reply.arguments();
+        if (reply.type() == QDBusMessage::ReplyMessage && arguments.count() == 2)
+            menuObjectPath = qdbus_cast<QDBusObjectPath>(arguments.at(1));
+        return reply;
+    }
+
+    QDBusPendingReply<> RegisterWindow(uint windowId, const QDBusObjectPath &menuObjectPath)
+    {
+        QList<QVariant> argumentList;
+        argumentList << QVariant::fromValue(windowId) << QVariant::fromValue(menuObjectPath);
+        return asyncCallWithArgumentList(QStringLiteral("RegisterWindow"), argumentList);
+    }
+
+    QDBusPendingReply<> UnregisterWindow(uint windowId)
+    {
+        QList<QVariant> argumentList;
+        argumentList << QVariant::fromValue(windowId);
+        return asyncCallWithArgumentList(QStringLiteral("UnregisterWindow"), argumentList);
+    }
+};
+
+QT_END_NAMESPACE
+
+#endif // QDBUSMENUREGISTRARPROXY_P_H