kwin/xwl/drag_wl.h

156 lines
3.1 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2019 Roman Gilg <subdiff@gmail.com>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef KWIN_XWL_DRAG_WL
#define KWIN_XWL_DRAG_WL
#include "drag.h"
#include <KWayland/Client/dataoffer.h>
#include <QPoint>
#include <QPointer>
#include <QVector>
namespace KWayland
{
namespace Client
{
class Surface;
}
}
namespace KWaylandServer
{
class DataDeviceInterface;
class DataSourceInterface;
class SurfaceInterface;
}
namespace KWin
{
class Toplevel;
class AbstractClient;
namespace Xwl
{
class X11Source;
enum class DragEventReply;
class Xvisit;
using DnDActions = KWayland::Client::DataDeviceManager::DnDActions;
class WlToXDrag : public Drag
{
Q_OBJECT
public:
explicit WlToXDrag();
DragEventReply moveFilter(Toplevel *target, const QPoint &pos) override;
bool handleClientMessage(xcb_client_message_event_t *event) override;
bool end() override;
KWaylandServer::DataSourceInterface *dataSourceIface() const {
return m_dsi;
}
private:
KWaylandServer::DataSourceInterface *m_dsi;
Xvisit *m_visit = nullptr;
Q_DISABLE_COPY(WlToXDrag)
};
// visit to an X window
class Xvisit : public QObject
{
Q_OBJECT
public:
// TODO: handle ask action
Xvisit(WlToXDrag *drag, AbstractClient *target);
bool handleClientMessage(xcb_client_message_event_t *event);
bool handleStatus(xcb_client_message_event_t *event);
bool handleFinished(xcb_client_message_event_t *event);
void sendPosition(const QPointF &globalPos);
void leave();
bool finished() const {
return m_state.finished;
}
AbstractClient *target() const {
return m_target;
}
Q_SIGNALS:
void finish(Xvisit *self);
private:
void sendEnter();
void sendDrop(uint32_t time);
void sendLeave();
void receiveOffer();
void enter();
void retrieveSupportedActions();
void determineProposedAction();
void requestDragAndDropAction();
void setProposedAction();
void drop();
void doFinish();
void stopConnections();
WlToXDrag *m_drag;
AbstractClient *m_target;
uint32_t m_version = 0;
QMetaObject::Connection m_enterConnection;
QMetaObject::Connection m_motionConnection;
QMetaObject::Connection m_actionConnection;
QMetaObject::Connection m_dropConnection;
struct {
bool pending = false;
bool cached = false;
QPoint cache;
} m_pos;
// Must be QPointer, because KWayland::Client::DataDevice
// might delete it.
QPointer<KWayland::Client::DataOffer> m_dataOffer;
// supported by the Wl source
DnDActions m_supportedActions = DnDAction::None;
// preferred by the X client
DnDAction m_preferredAction = DnDAction::None;
// decided upon by the compositor
DnDAction m_proposedAction = DnDAction::None;
struct {
bool entered = false;
bool dropped = false;
bool finished = false;
} m_state;
bool m_accepts = false;
Q_DISABLE_COPY(Xvisit)
};
} // namespace Xwl
} // namespace KWin
#endif