77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
/*
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KWin - the KDE window manager
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This file is part of the KDE project.
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SPDX-FileCopyrightText: 2019 Roman Gilg <subdiff@gmail.com>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef KWIN_XWL_DND
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#define KWIN_XWL_DND
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#include "selection.h"
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#include "wayland/datadevicemanager_interface.h"
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#include <QPoint>
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namespace KWaylandServer
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{
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class SurfaceInterface;
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}
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namespace KWin
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{
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class Window;
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namespace Xwl
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{
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class Drag;
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enum class DragEventReply;
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class XwlDropHandler;
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/**
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* Represents the drag and drop mechanism, on X side this is the XDND protocol.
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* For more information on XDND see: https://johnlindal.wixsite.com/xdnd
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*/
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class Dnd : public Selection
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{
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Q_OBJECT
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public:
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explicit Dnd(xcb_atom_t atom, QObject *parent);
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static uint32_t version();
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XwlDropHandler *dropHandler() const;
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void doHandleXfixesNotify(xcb_xfixes_selection_notify_event_t *event) override;
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void x11OffersChanged(const QStringList &added, const QStringList &removed) override;
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bool handleClientMessage(xcb_client_message_event_t *event) override;
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DragEventReply dragMoveFilter(Window *target, const QPoint &pos);
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using DnDAction = KWaylandServer::DataDeviceManagerInterface::DnDAction;
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using DnDActions = KWaylandServer::DataDeviceManagerInterface::DnDActions;
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static DnDAction atomToClientAction(xcb_atom_t atom);
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static xcb_atom_t clientActionToAtom(DnDAction action);
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private:
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// start and end Wl native client drags (Wl -> Xwl)
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void startDrag();
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void endDrag();
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void clearOldDrag(Drag *drag);
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// active drag or null when no drag active
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Drag *m_currentDrag = nullptr;
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QVector<Drag *> m_oldDrags;
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XwlDropHandler *m_dropHandler;
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Q_DISABLE_COPY(Dnd)
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};
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} // namespace Xwl
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} // namespace KWin
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#endif
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