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// Copyright (C) 2024 Jie Liu <liujie01@kylinos.cn>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qwaylanddatacontrolv1_p.h"
#include "qwaylandinputdevice_p.h"
#include "qwaylanddisplay_p.h"
#include "qwaylandmimehelper_p.h"
#include <QtGui/private/qguiapplication_p.h>
#include <qpa/qplatformclipboard.h>
#include <signal.h>
#include <unistd.h>
QT_BEGIN_NAMESPACE
namespace QtWaylandClient {
QWaylandDataControlManagerV1::QWaylandDataControlManagerV1(QWaylandDisplay *display, uint id, uint version)
: zwlr_data_control_manager_v1(display->wl_registry(), id, qMin(version, uint(2)))
, m_display(display)
{
}
QWaylandDataControlDeviceV1 *QWaylandDataControlManagerV1::createDevice(QWaylandInputDevice *seat)
{
return new QWaylandDataControlDeviceV1(this, seat);
}
QWaylandDataControlOfferV1::QWaylandDataControlOfferV1(QWaylandDisplay *display, ::zwlr_data_control_offer_v1 *offer)
: zwlr_data_control_offer_v1(offer)
, m_display(display)
, m_mimeData(new QWaylandMimeData(this))
{}
void QWaylandDataControlOfferV1::startReceiving(const QString &mimeType, int fd)
{
receive(mimeType, fd);
wl_display_flush(m_display->wl_display());
}
void QWaylandDataControlOfferV1::zwlr_data_control_offer_v1_offer(const QString &mime_type)
{
m_mimeData->appendFormat(mime_type);
}
QWaylandDataControlDeviceV1::QWaylandDataControlDeviceV1(
QWaylandDataControlManagerV1 *manager, QWaylandInputDevice *seat)
: QtWayland::zwlr_data_control_device_v1(manager->get_data_device(seat->wl_seat()))
, m_display(manager->display())
, m_seat(seat)
{
}
QWaylandDataControlDeviceV1::~QWaylandDataControlDeviceV1()
{
destroy();
}
void QWaylandDataControlDeviceV1::invalidateSelectionOffer()
{
if (!m_selectionOffer)
return;
m_selectionOffer.reset();
QGuiApplicationPrivate::platformIntegration()->clipboard()->emitChanged(QClipboard::Clipboard);
}
void QWaylandDataControlDeviceV1::setSelectionSource(QWaylandDataControlSourceV1 *source)
{
if (source) {
connect(source, &QWaylandDataControlSourceV1::cancelled, this, [this]() {
m_selectionSource.reset();
QGuiApplicationPrivate::platformIntegration()->clipboard()->emitChanged(QClipboard::Clipboard);
});
}
set_selection(source ? source->object() : nullptr);
m_selectionSource.reset(source);
}
void QWaylandDataControlDeviceV1::setPrimarySelectionSource(QWaylandDataControlSourceV1 *source)
{
if (source) {
connect(source, &QWaylandDataControlSourceV1::cancelled, this, [this]() {
m_primarySelectionSource.reset();
QGuiApplicationPrivate::platformIntegration()->clipboard()->emitChanged(QClipboard::Selection);
});
}
set_primary_selection(source ? source->object() : nullptr);
m_primarySelectionSource.reset(source);
}
void QWaylandDataControlDeviceV1::zwlr_data_control_device_v1_data_offer(zwlr_data_control_offer_v1 *offer)
{
new QWaylandDataControlOfferV1(m_display, offer);
}
void QWaylandDataControlDeviceV1::zwlr_data_control_device_v1_selection(zwlr_data_control_offer_v1 *id)
{
if (!id)
m_selectionOffer.reset();
else
m_selectionOffer.reset(static_cast<QWaylandDataControlOfferV1 *>(zwlr_data_control_offer_v1_get_user_data(id)));
// The selection event may be sent before platfrmIntegration is set.
if (auto* integration = QGuiApplicationPrivate::platformIntegration())
integration->clipboard()->emitChanged(QClipboard::Clipboard);
}
void QWaylandDataControlDeviceV1::zwlr_data_control_device_v1_finished()
{
m_selectionOffer.reset();
m_primarySelectionOffer.reset();
QGuiApplicationPrivate::platformIntegration()->clipboard()->emitChanged(QClipboard::Clipboard);
}
void QWaylandDataControlDeviceV1::zwlr_data_control_device_v1_primary_selection(struct ::zwlr_data_control_offer_v1 *id)
{
if (!id)
m_primarySelectionOffer.reset();
else
m_primarySelectionOffer.reset(static_cast<QWaylandDataControlOfferV1 *>(zwlr_data_control_offer_v1_get_user_data(id)));
// The selection event may be sent before platfrmIntegration is set.
if (auto* integration = QGuiApplicationPrivate::platformIntegration())
integration->clipboard()->emitChanged(QClipboard::Selection);
}
QWaylandDataControlSourceV1::QWaylandDataControlSourceV1(QWaylandDataControlManagerV1 *manager, QMimeData *mimeData)
: QtWayland::zwlr_data_control_source_v1(manager->create_data_source())
, m_mimeData(mimeData)
{
if (!mimeData)
return;
const auto formats = QInternalMimeData::formatsHelper(mimeData);
for (const QString &format : formats)
offer(format);
}
QWaylandDataControlSourceV1::~QWaylandDataControlSourceV1()
{
destroy();
}
void QWaylandDataControlSourceV1::zwlr_data_control_source_v1_send(const QString &mime_type, int32_t fd)
{
QByteArray content = QWaylandMimeHelper::getByteArray(m_mimeData, mime_type);
if (!content.isEmpty()) {
// Create a sigpipe handler that does nothing, or clients may be forced to terminate
// if the pipe is closed in the other end.
struct sigaction action, oldAction;
action.sa_handler = SIG_IGN;
sigemptyset (&action.sa_mask);
action.sa_flags = 0;
sigaction(SIGPIPE, &action, &oldAction);
ssize_t unused = write(fd, content.constData(), size_t(content.size()));
Q_UNUSED(unused);
sigaction(SIGPIPE, &oldAction, nullptr);
}
close(fd);
}
} // namespace QtWaylandClient
QT_END_NAMESPACE
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