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#ifndef QXCBCLIPBOARD_H
#define QXCBCLIPBOARD_H

#include <QPlatformClipboard>
#include <qxcbobject.h>
#include <xcb/xcb.h>

class QXcbConnection;
class QXcbScreen;

class QXcbClipboard : public QXcbObject, public QPlatformClipboard
{
public:
    QXcbClipboard(QXcbConnection *connection);

    QMimeData *mimeData(QClipboard::Mode mode);
    void setMimeData(QMimeData *data, QClipboard::Mode mode);

    bool supportsMode(QClipboard::Mode mode) const;

    QXcbScreen *screen() const { return m_screen; }

    xcb_window_t requestor() const;
    void setRequestor(xcb_window_t window);

    xcb_window_t owner() const;

    void handleSelectionRequest(xcb_selection_request_event_t *event);

    bool clipboardReadProperty(xcb_window_t win, xcb_atom_t property, bool deleteProperty, QByteArray *buffer, int *size, xcb_atom_t *type, int *format) const;
    QByteArray clipboardReadIncrementalProperty(xcb_window_t win, xcb_atom_t property, int nbytes, bool nullterm);

    QByteArray getDataInFormat(xcb_atom_t modeAtom, xcb_atom_t fmtatom);

    xcb_window_t getSelectionOwner(xcb_atom_t atom) const;
    QByteArray getSelection(xcb_atom_t selection, xcb_atom_t target, xcb_atom_t property);

private:
    void setOwner(xcb_window_t window);

    xcb_generic_event_t *waitForClipboardEvent(xcb_window_t win, int type, int timeout);

    xcb_atom_t sendTargetsSelection(QMimeData *d, xcb_window_t window, xcb_atom_t property);
    xcb_atom_t sendSelection(QMimeData *d, xcb_atom_t target, xcb_window_t window, xcb_atom_t property);

    QXcbScreen *m_screen;

    QMimeData *m_xClipboard;
    QMimeData *m_clientClipboard;

    QMimeData *m_xSelection;
    QMimeData *m_clientSelection;

    xcb_window_t m_requestor;
    xcb_window_t m_owner;

    static const int clipboard_timeout;

};

#endif // QXCBCLIPBOARD_H