/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
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** This file is part of the plugins of the Qt Toolkit.
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** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
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****************************************************************************/

#include "qwaylanddatasource.h"
#include "qwaylanddataoffer.h"
#include "qwaylandinputdevice.h"
#include "qwaylandmimehelper.h"

#include <QtCore/QFile>

#include <QtCore/QDebug>

void QWaylandDataSource::data_source_target(void *data,
               struct wl_data_source *wl_data_source,
               const char *mime_type)
{
    Q_UNUSED(data);
    Q_UNUSED(wl_data_source);
    Q_UNUSED(mime_type);
}

void QWaylandDataSource::data_source_send(void *data,
             struct wl_data_source *wl_data_source,
             const char *mime_type,
             int32_t fd)
{
    Q_UNUSED(wl_data_source);
    QWaylandDataSource *self = static_cast<QWaylandDataSource *>(data);
    QString mimeType = QString::fromLatin1(mime_type);
    QByteArray content = QWaylandMimeHelper::getByteArray(self->m_mime_data, mimeType);
    if (!content.isEmpty()) {
        QFile f;
        if (f.open(fd, QIODevice::WriteOnly))
            f.write(content);
    }
    close(fd);
}

void QWaylandDataSource::data_source_cancelled(void *data,
               struct wl_data_source *wl_data_source)
{
    Q_UNUSED(data);
    Q_UNUSED(wl_data_source);
}

const struct wl_data_source_listener QWaylandDataSource::data_source_listener = {
    data_source_target,
    data_source_send,
    data_source_cancelled
};

QWaylandDataSource::QWaylandDataSource(QWaylandDataDeviceManager *dndSelectionHandler, QMimeData *mimeData)
    : m_mime_data(mimeData)
{
    m_data_source = wl_data_device_manager_create_data_source(dndSelectionHandler->handle());
    wl_data_source_add_listener(m_data_source,&data_source_listener,this);
    QStringList formats = mimeData->formats();
    for (int i = 0; i < formats.size(); i++) {
        const char *offer = qPrintable(formats.at(i));
        wl_data_source_offer(m_data_source,offer);
    }
}

QWaylandDataSource::~QWaylandDataSource()
{
    wl_data_source_destroy(m_data_source);
}

QMimeData * QWaylandDataSource::mimeData() const
{
    return m_mime_data;
}

struct wl_data_source *QWaylandDataSource::handle() const
{
    return m_data_source;
}