93 lines
2.3 KiB
C++
93 lines
2.3 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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Copyright 2019 Roman Gilg <subdiff@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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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 <QPoint>
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namespace KWayland
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{
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namespace Client
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{
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class Surface;
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}
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namespace Server
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{
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class SurfaceInterface;
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}
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}
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namespace KWin
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{
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class Toplevel;
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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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/**
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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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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(Toplevel *target, const QPoint &pos);
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KWayland::Server::SurfaceInterface *surfaceIface() const {
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return m_surfaceIface;
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}
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KWayland::Client::Surface *surface() const {
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return m_surface;
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}
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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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KWayland::Client::Surface *m_surface;
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KWayland::Server::SurfaceInterface *m_surfaceIface = nullptr;
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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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