Create a general ShellSurfaceItem to avoid duplication

XdgSurfaceItem and WlShellSurfaceItem have been removed in favor
of the more general ShellSurfaceItem. An XdgSurface or a WlShellSurface
can be assigned to the shellSurface property of a ShellSurfaceItem
and leaves open the possibility for additional shells.

A shared base class for QWaylandXdgSurface and QWaylandWlShellSurface
has been added which has a factory method for creating
a QWaylandQuickShellIntegration for that shell implementation.

The property "shellSurface" on the ShellSurfaceItem allows QML code to
attach to signals regardless of whether it's a WlShell or XdgShell
client. The pure-qml example has been updated to take advantage of this.

Change-Id: I9d3427586e100d6c44a24f319dd8e1486ff062ee
Reviewed-by: Giulio Camuffo <giulio.camuffo@kdab.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/src/compositor/extensions/qwaylandquickshellsurfaceitem_p.h b/src/compositor/extensions/qwaylandquickshellsurfaceitem_p.h
new file mode 100644
index 000000000..34771037c
--- /dev/null
+++ b/src/compositor/extensions/qwaylandquickshellsurfaceitem_p.h
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDQUICKSHELLSURFACEITEM_P_H
+#define QWAYLANDQUICKSHELLSURFACEITEM_P_H
+
+#include <QtWaylandCompositor/private/qwaylandquickitem_p.h>
+
+QT_BEGIN_NAMESPACE
+
+//
+//  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.
+//
+
+class QWaylandQuickShellIntegration;
+class QWaylandShellSurface;
+
+class Q_WAYLAND_COMPOSITOR_EXPORT QWaylandQuickShellSurfaceItemPrivate : public QWaylandQuickItemPrivate
+{
+public:
+    QWaylandQuickShellSurfaceItemPrivate()
+        : QWaylandQuickItemPrivate()
+        , m_shellIntegration(nullptr)
+        , m_shellSurface(nullptr)
+        , m_moveItem(nullptr)
+    {}
+    QWaylandQuickShellIntegration *m_shellIntegration;
+    QWaylandShellSurface *m_shellSurface;
+    QQuickItem *m_moveItem;
+};
+
+class QWaylandQuickShellIntegration : public QObject
+{
+    Q_OBJECT
+public:
+    QWaylandQuickShellIntegration(QObject *parent = nullptr) : QObject(parent) {}
+    virtual bool mouseMoveEvent(QMouseEvent *) { return false; }
+    virtual bool mouseReleaseEvent(QMouseEvent *) { return false; }
+};
+
+#endif // QWAYLANDQUICKSHELLSURFACEITEM_P_H