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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwaylandtouch.h"
#include "qwaylandtouch_p.h"
#include <QtWaylandCompositor/QWaylandCompositor>
#include <QtWaylandCompositor/QWaylandSeat>
#include <QtWaylandCompositor/QWaylandView>
#include <QtWaylandCompositor/QWaylandClient>
#include <QtWaylandCompositor/private/qwlqttouch_p.h>
QT_BEGIN_NAMESPACE
QWaylandTouchPrivate::QWaylandTouchPrivate(QWaylandTouch *touch, QWaylandSeat *seat)
: wl_touch()
, seat(seat)
{
Q_UNUSED(touch);
}
void QWaylandTouchPrivate::touch_release(Resource *resource)
{
wl_resource_destroy(resource->handle);
}
uint QWaylandTouchPrivate::sendDown(QWaylandSurface *surface, uint32_t time, int touch_id, const QPointF &position)
{
Q_Q(QWaylandTouch);
auto focusResource = resourceMap().value(surface->client()->client());
if (!focusResource)
return 0;
uint32_t serial = q->compositor()->nextSerial();
wl_touch_send_down(focusResource->handle, serial, time, surface->resource(), touch_id,
wl_fixed_from_double(position.x()), wl_fixed_from_double(position.y()));
return serial;
}
uint QWaylandTouchPrivate::sendUp(QWaylandClient *client, uint32_t time, int touch_id)
{
auto focusResource = resourceMap().value(client->client());
if (!focusResource)
return 0;
uint32_t serial = compositor()->nextSerial();
wl_touch_send_up(focusResource->handle, serial, time, touch_id);
return serial;
}
void QWaylandTouchPrivate::sendMotion(QWaylandClient *client, uint32_t time, int touch_id, const QPointF &position)
{
auto focusResource = resourceMap().value(client->client());
if (!focusResource)
return;
wl_touch_send_motion(focusResource->handle, time, touch_id,
wl_fixed_from_double(position.x()), wl_fixed_from_double(position.y()));
}
/*!
* \class QWaylandTouch
* \inmodule QtWaylandCompositor
* \since 5.8
* \brief The QWaylandTouch class provides access to a touch device.
*
* This class provides access to the touch device in a QWaylandSeat. It corresponds to
* the Wayland interface wl_touch.
*/
/*!
* Constructs a QWaylandTouch for the \a seat and with the given \a parent.
*/
QWaylandTouch::QWaylandTouch(QWaylandSeat *seat, QObject *parent)
: QWaylandObject(*new QWaylandTouchPrivate(this, seat), parent)
{
}
/*!
* Returns the input device for this QWaylandTouch.
*/
QWaylandSeat *QWaylandTouch::seat() const
{
Q_D(const QWaylandTouch);
return d->seat;
}
/*!
* Returns the compositor for this QWaylandTouch.
*/
QWaylandCompositor *QWaylandTouch::compositor() const
{
Q_D(const QWaylandTouch);
return d->compositor();
}
/*!
* Sends a touch point event to the touch device of \a surface with the given \a id,
* \a position, and \a state.
*
* Returns the serial of the down or up event if sent, otherwise 0.
*/
uint QWaylandTouch::sendTouchPointEvent(QWaylandSurface *surface, int id, const QPointF &position, Qt::TouchPointState state)
{
Q_D(QWaylandTouch);
uint32_t time = compositor()->currentTimeMsecs();
uint serial = 0;
switch (state) {
case Qt::TouchPointPressed:
serial = d->sendDown(surface, time, id, position);
break;
case Qt::TouchPointMoved:
d->sendMotion(surface->client(), time, id, position);
break;
case Qt::TouchPointReleased:
serial = d->sendUp(surface->client(), time, id);
break;
case Qt::TouchPointStationary:
// stationary points are not sent through wayland, the client must cache them
break;
}
return serial;
}
/*!
* Sends a touch frame event to the touch device of a \a client. This indicates the end of a
* contact point list.
*/
void QWaylandTouch::sendFrameEvent(QWaylandClient *client)
{
Q_D(QWaylandTouch);
auto focusResource = d->resourceMap().value(client->client());
if (focusResource)
d->send_frame(focusResource->handle);
}
/*!
* Sends a touch cancel event to the touch device of a \a client.
*/
void QWaylandTouch::sendCancelEvent(QWaylandClient *client)
{
Q_D(QWaylandTouch);
auto focusResource = d->resourceMap().value(client->client());
if (focusResource)
d->send_cancel(focusResource->handle);
}
/*!
* Sends all touch points in \a event to the specified \a surface,
* followed by a touch frame event.
*
* \sa sendTouchPointEvent(), sendFrameEvent()
*/
void QWaylandTouch::sendFullTouchEvent(QWaylandSurface *surface, QTouchEvent *event)
{
Q_D(QWaylandTouch);
if (event->type() == QEvent::TouchCancel) {
sendCancelEvent(surface->client());
return;
}
QtWayland::TouchExtensionGlobal *ext = QtWayland::TouchExtensionGlobal::findIn(d->compositor());
if (ext && ext->postTouchEvent(event, surface))
return;
const QList<QTouchEvent::TouchPoint> points = event->touchPoints();
if (points.isEmpty())
return;
const int pointCount = points.count();
for (int i = 0; i < pointCount; ++i) {
const QTouchEvent::TouchPoint &tp(points.at(i));
// Convert the local pos in the compositor window to surface-relative.
sendTouchPointEvent(surface, tp.id(), tp.pos(), tp.state());
}
sendFrameEvent(surface->client());
}
/*!
* \internal
*/
void QWaylandTouch::addClient(QWaylandClient *client, uint32_t id, uint32_t version)
{
Q_D(QWaylandTouch);
d->add(client->client(), id, qMin<uint32_t>(QtWaylandServer::wl_touch::interfaceVersion(), version));
}
QT_END_NAMESPACE
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