qwldatadevicemanager_p.h

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// Copyright (C) 2017 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

// Qt-Security score:critical reason:network-protocol

#ifndef WLDATADEVICEMANAGER_H

#define WLDATADEVICEMANAGER_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include <QtCore/QList>

#include <QtCore/QMap>

#include <QtGui/QClipboard>

#include <QtCore/QMimeData>

#include <QtWaylandCompositor/QWaylandCompositor>

#include <QtWaylandCompositor/private/qwayland-server-wayland.h>

#include <QtWaylandCompositor/private/qtwaylandcompositorglobal_p.h>

QT_REQUIRE_CONFIG(wayland_datadevice);

QT_BEGIN_NAMESPACE

class QSocketNotifier;

namespace QtWayland {

class DataDevice;

class DataSource;

class DataDeviceManager : public QObject, public QtWaylandServer::wl_data_device_manager

    Q_OBJECT

public:

    DataDeviceManager(QWaylandCompositor *compositor);

    void setCurrentSelectionSource(DataSource *source);

    DataSource *currentSelectionSource();

    struct wl_display *display() const;

    void sourceDestroyed(DataSource *source);

    void overrideSelection(const QMimeData &mimeData);

    bool offerFromCompositorToClient(wl_resource *clientDataDeviceResource);

    void offerRetainedSelection(wl_resource *clientDataDeviceResource);

protected:

    void data_device_manager_create_data_source(Resource *resource, uint32_t id) override;

    void data_device_manager_get_data_device(Resource *resource, uint32_t id, struct ::wl_resource *seat) override;

private Q_SLOTS:

    void readFromClient(int fd);

private:

    void retain();

    void finishReadFromClient(bool exhausted = false);

    QWaylandCompositor *m_compositor = nullptr;

    QList<DataDevice *> m_data_device_list;

    DataSource *m_current_selection_source = nullptr;

    QMimeData m_retainedData;

    QSocketNotifier *m_retainedReadNotifier = nullptr;

    QList<QSocketNotifier *> m_obsoleteRetainedReadNotifiers;

    int m_retainedReadIndex = 0;

    QByteArray m_retainedReadBuf;

    bool m_compositorOwnsSelection = false;

    static void comp_accept(struct wl_client *client,

                            struct wl_resource *resource,

                            uint32_t time,

                            const char *type);

    static void comp_receive(struct wl_client *client,

                             struct wl_resource *resource,

                             const char *mime_type,

                             int32_t fd);

    static void comp_destroy(struct wl_client *client,

                             struct wl_resource *resource);

    static const struct wl_data_offer_interface compositor_offer_interface;

};

QT_END_NAMESPACE

#endif // WLDATADEVICEMANAGER_H