qwaylandprimaryselectionv1.cpp

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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
 
#include "qwaylandprimaryselectionv1_p.h"
#include "qwaylandinputdevice_p.h"
#include "qwaylanddisplay_p.h"
#include "qwaylandmimehelper_p.h"
#include "qwaylandpipewritehelper_p.h"
 
#include <QtGui/private/qguiapplication_p.h>
 
#include <qpa/qplatformclipboard.h>
 
#include <unistd.h>
 
QT_BEGIN_NAMESPACE
using namespace std::chrono;
 
namespace QtWaylandClient {
 
QWaylandPrimarySelectionDeviceManagerV1::QWaylandPrimarySelectionDeviceManagerV1(QWaylandDisplay *display, uint id, uint version)
    : zwp_primary_selection_device_manager_v1(display->wl_registry(), id, qMin(version, uint(1)))
    , m_display(display)
{
}
 
QWaylandPrimarySelectionDeviceManagerV1::~QWaylandPrimarySelectionDeviceManagerV1()
{
    destroy();
}
 
QWaylandPrimarySelectionDeviceV1 *QWaylandPrimarySelectionDeviceManagerV1::createDevice(QWaylandInputDevice *seat)
{
    return new QWaylandPrimarySelectionDeviceV1(this, seat);
}
 
QWaylandPrimarySelectionOfferV1::QWaylandPrimarySelectionOfferV1(QWaylandDisplay *display, ::zwp_primary_selection_offer_v1 *offer)
    : zwp_primary_selection_offer_v1(offer)
    , m_display(display)
    , m_mimeData(new QWaylandMimeData(this))
{}
 
void QWaylandPrimarySelectionOfferV1::startReceiving(const QString &mimeType, int fd)
{
    receive(mimeType, fd);
    wl_display_flush(m_display->wl_display());
}
 
void QWaylandPrimarySelectionOfferV1::zwp_primary_selection_offer_v1_offer(const QString &mime_type)
{
    m_mimeData->appendFormat(mime_type);
}
 
QWaylandPrimarySelectionDeviceV1::QWaylandPrimarySelectionDeviceV1(
        QWaylandPrimarySelectionDeviceManagerV1 *manager, QWaylandInputDevice *seat)
    : QtWayland::zwp_primary_selection_device_v1(manager->get_device(seat->wl_seat()))
    , m_display(manager->display())
    , m_seat(seat)
{
}
 
QWaylandPrimarySelectionDeviceV1::~QWaylandPrimarySelectionDeviceV1()
{
    destroy();
}
 
void QWaylandPrimarySelectionDeviceV1::invalidateSelectionOffer()
{
    if (!m_selectionOffer)
        return;
 
    m_selectionOffer.reset();
    QGuiApplicationPrivate::platformIntegration()->clipboard()->emitChanged(QClipboard::Selection);
}
 
void QWaylandPrimarySelectionDeviceV1::setSelectionSource(QWaylandPrimarySelectionSourceV1 *source)
{
    if (source) {
        connect(source, &QWaylandPrimarySelectionSourceV1::cancelled, this, [this]() {
            m_selectionSource.reset();
            QGuiApplicationPrivate::platformIntegration()->clipboard()->emitChanged(QClipboard::Selection);
        });
    }
    set_selection(source ? source->object() : nullptr, m_seat->serial());
    m_selectionSource.reset(source);
}
 
void QWaylandPrimarySelectionDeviceV1::zwp_primary_selection_device_v1_data_offer(zwp_primary_selection_offer_v1 *offer)
{
    new QWaylandPrimarySelectionOfferV1(m_display, offer);
}
 
void QWaylandPrimarySelectionDeviceV1::zwp_primary_selection_device_v1_selection(zwp_primary_selection_offer_v1 *id)
{
 
    if (id)
        m_selectionOffer.reset(static_cast<QWaylandPrimarySelectionOfferV1 *>(zwp_primary_selection_offer_v1_get_user_data(id)));
    else
        m_selectionOffer.reset();
 
    QGuiApplicationPrivate::platformIntegration()->clipboard()->emitChanged(QClipboard::Selection);
}
 
QWaylandPrimarySelectionSourceV1::QWaylandPrimarySelectionSourceV1(QWaylandPrimarySelectionDeviceManagerV1 *manager, QMimeData *mimeData)
    : QtWayland::zwp_primary_selection_source_v1(manager->create_source())
    , m_mimeData(mimeData)
{
    if (!mimeData)
        return;
    for (auto &format : mimeData->formats())
        offer(format);
}
 
QWaylandPrimarySelectionSourceV1::~QWaylandPrimarySelectionSourceV1()
{
    destroy();
}
 
void QWaylandPrimarySelectionSourceV1::zwp_primary_selection_source_v1_send(const QString &mime_type, int32_t fd)
{
    QByteArray content = QWaylandMimeHelper::getByteArray(m_mimeData, mime_type);
    if (!content.isEmpty()) {
        switch (QWaylandPipeWriteHelper::safeWriteWithTimeout(fd, content.constData(), content.size(), PIPE_BUF, 5s)) {
            case QWaylandPipeWriteHelper::SafeWriteResult::Ok:
                break;
            case QWaylandPipeWriteHelper::SafeWriteResult::Timeout:
                qWarning() << "QWaylandPrimarySelectionSourceV1: timeout writing to pipe";
                break;
            case QWaylandPipeWriteHelper::SafeWriteResult::Closed:
                qWarning() << "QWaylandPrimarySelectionSourceV1: peer closed pipe";
                break;
            case QWaylandPipeWriteHelper::SafeWriteResult::Error:
                qWarning() << "QWaylandPrimarySelectionSourceV1: write() failed";
                break;
        }
    }
    close(fd);
}
 
} // namespace QtWaylandClient
 
QT_END_NAMESPACE
 
#include "moc_qwaylandprimaryselectionv1_p.cpp"