/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** 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
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** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) 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.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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWAYLANDWLSHELL_H
#define QWAYLANDWLSHELL_H

#include <QtWaylandCompositor/QWaylandCompositorExtension>
#include <QtWaylandCompositor/QWaylandResource>
#include <QtWaylandCompositor/QWaylandShell>
#include <QtWaylandCompositor/QWaylandShellSurface>
#include <QtWaylandCompositor/qwaylandquickchildren.h>

#include <QtCore/QSize>

QT_BEGIN_NAMESPACE

class QWaylandWlShellPrivate;
class QWaylandWlShellSurfacePrivate;
class QWaylandSurface;
class QWaylandClient;
class QWaylandSeat;
class QWaylandOutput;
class QWaylandSurfaceRole;
class QWaylandWlShellSurface;

class Q_WAYLANDCOMPOSITOR_EXPORT QWaylandWlShell : public QWaylandShellTemplate<QWaylandWlShell>
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QWaylandWlShell)
public:
    QWaylandWlShell();
    QWaylandWlShell(QWaylandCompositor *compositor);

    void initialize() override;
    QList<QWaylandWlShellSurface *> shellSurfaces() const;
    QList<QWaylandWlShellSurface *> shellSurfacesForClient(QWaylandClient* client) const;
    QList<QWaylandWlShellSurface *> mappedPopups() const;
    QWaylandClient *popupClient() const;

    static const struct wl_interface *interface();
    static QByteArray interfaceName();

public Q_SLOTS:
    void closeAllPopups();

Q_SIGNALS:
    void wlShellSurfaceRequested(QWaylandSurface *surface, const QWaylandResource &resource);
    void wlShellSurfaceCreated(QWaylandWlShellSurface *shellSurface);
};

class Q_WAYLANDCOMPOSITOR_EXPORT QWaylandWlShellSurface : public QWaylandShellSurfaceTemplate<QWaylandWlShellSurface>
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QWaylandWlShellSurface)
    Q_WAYLAND_COMPOSITOR_DECLARE_QUICK_CHILDREN(QWaylandWlShellSurface)
    Q_PROPERTY(QWaylandSurface *surface READ surface NOTIFY surfaceChanged)
    Q_PROPERTY(QWaylandWlShell *shell READ shell NOTIFY shellChanged)
    Q_PROPERTY(QString title READ title NOTIFY titleChanged)
    Q_PROPERTY(QString className READ className NOTIFY classNameChanged)
    Q_MOC_INCLUDE("qwaylandsurface.h")

public:
    enum FullScreenMethod {
        DefaultFullScreen,
        ScaleFullScreen,
        DriverFullScreen,
        FillFullScreen
    };
    Q_ENUM(FullScreenMethod);

    enum ResizeEdge {
        NoneEdge        =  0,
        TopEdge         =  1,
        BottomEdge      =  2,
        LeftEdge        =  4,
        TopLeftEdge     =  5,
        BottomLeftEdge  =  6,
        RightEdge       =  8,
        TopRightEdge    =  9,
        BottomRightEdge = 10
    };
    Q_ENUM(ResizeEdge);

    QWaylandWlShellSurface();
    QWaylandWlShellSurface(QWaylandWlShell *shell, QWaylandSurface *surface, const QWaylandResource &resource);
    ~QWaylandWlShellSurface() override;

    Q_INVOKABLE void initialize(QWaylandWlShell *shell, QWaylandSurface *surface, const QWaylandResource &resource);

    QString title() const;
    QString className() const;

    QWaylandSurface *surface() const;
    QWaylandWlShell *shell() const;

    Qt::WindowType windowType() const override;

    static const struct wl_interface *interface();
    static QByteArray interfaceName();
    static QWaylandSurfaceRole *role();

    static QWaylandWlShellSurface *fromResource(wl_resource *res);

    Q_INVOKABLE QSize sizeForResize(const QSizeF &size, const QPointF &delta, ResizeEdge edges);
    Q_INVOKABLE void sendConfigure(const QSize &size, ResizeEdge edges);
    Q_INVOKABLE void sendPopupDone();

#if QT_CONFIG(wayland_compositor_quick)
    QWaylandQuickShellIntegration *createIntegration(QWaylandQuickShellSurfaceItem *item) override;
#endif

public Q_SLOTS:
    void ping();

Q_SIGNALS:
    void surfaceChanged();
    void shellChanged();
    void titleChanged();
    void classNameChanged();
    void pong();
    void startMove(QWaylandSeat *seat);
    void startResize(QWaylandSeat *seat, ResizeEdge edges);

    void setDefaultToplevel();
    void setTransient(QWaylandSurface *parentSurface, const QPoint &relativeToParent, bool inactive);
    void setFullScreen(FullScreenMethod method, uint framerate, QWaylandOutput *output);
    void setPopup(QWaylandSeat *seat, QWaylandSurface *parentSurface, const QPoint &relativeToParent);
    void setMaximized(QWaylandOutput *output);

private:
    void initialize() override;
};

QT_END_NAMESPACE

#endif  /*QWAYLANDWLSHELL_H*/