/****************************************************************************
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** GNU General Public License Usage
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** Public License version 3.0 as published by the Free Software Foundation
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****************************************************************************/

#ifndef QWAYLANDCLIPBOARD_H
#define QWAYLANDCLIPBOARD_H

#include <QtGui/QPlatformClipboard>
#include <QtCore/QStringList>
#include <QtCore/QVariant>

class QWaylandDisplay;
class QWaylandSelection;
class QWaylandMimeData;
struct wl_selection_offer;

class QWaylandClipboardSignalEmitter : public QObject
{
    Q_OBJECT
public slots:
    void emitChanged();
};

class QWaylandClipboard : public QPlatformClipboard
{
public:
    static QWaylandClipboard *instance(QWaylandDisplay *display);

    ~QWaylandClipboard();

    QMimeData *mimeData(QClipboard::Mode mode = QClipboard::Clipboard);
    void setMimeData(QMimeData *data, QClipboard::Mode mode = QClipboard::Clipboard);
    bool supportsMode(QClipboard::Mode mode) const;

    void unregisterSelection(QWaylandSelection *selection);

    void createSelectionOffer(uint32_t id);

    QVariant retrieveData(const QString &mimeType, QVariant::Type type) const;

private:
    QWaylandClipboard(QWaylandDisplay *display);

    static void offer(void *data,
                      struct wl_selection_offer *selection_offer,
                      const char *type);
    static void keyboardFocus(void *data,
                              struct wl_selection_offer *selection_offer,
                              struct wl_input_device *input_device);
    static const struct wl_selection_offer_listener selectionOfferListener;

    static void syncCallback(void *data);
    static void forceRoundtrip(struct wl_display *display);

    QWaylandDisplay *mDisplay;
    QWaylandMimeData *mMimeDataIn;
    QList<QWaylandSelection *> mSelections;
    QStringList mOfferedMimeTypes;
    struct wl_selection_offer *mOffer;
    QWaylandClipboardSignalEmitter mEmitter;
};

#endif // QWAYLANDCLIPBOARD_H