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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2013, 2016 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "touch_input.h"
#include "abstract_client.h"
#include "input.h"
#include "input_event_spy.h"
#include "toplevel.h"
#include "wayland_server.h"
#include "workspace.h"
#include "decorations/decoratedclient.h"
// KDecoration
#include <KDecoration2/Decoration>
// KWayland
#include <KWayland/Server/seat_interface.h>
// screenlocker
#include <KScreenLocker/KsldApp>
// Qt
#include <QHoverEvent>
#include <QWindow>
namespace KWin
{
TouchInputRedirection::TouchInputRedirection(InputRedirection *parent)
: InputDeviceHandler(parent)
{
}
TouchInputRedirection::~TouchInputRedirection() = default;
void TouchInputRedirection::init()
{
Q_ASSERT(!m_inited);
m_inited = true;
if (waylandServer()->hasScreenLockerIntegration()) {
connect(ScreenLocker::KSldApp::self(), &ScreenLocker::KSldApp::lockStateChanged, this,
[this] {
cancel();
// position doesn't matter
update();
}
);
}
connect(workspace(), &QObject::destroyed, this, [this] { m_inited = false; });
connect(waylandServer(), &QObject::destroyed, this, [this] { m_inited = false; });
}
void TouchInputRedirection::update(const QPointF &pos)
{
if (!m_inited) {
return;
}
if (m_windowUpdatedInCycle) {
return;
}
m_windowUpdatedInCycle = true;
// TODO: handle pointer grab aka popups
Toplevel *t = m_input->findToplevel(pos.toPoint());
auto oldWindow = m_window;
updateInternalWindow(pos);
if (!m_internalWindow) {
updateDecoration(t, pos);
} else {
// TODO: send hover leave to decoration
if (m_decoration) {
m_decoration->client()->leaveEvent();
}
m_decoration.clear();
}
if (m_decoration || m_internalWindow) {
t = nullptr;
} else if (!m_decoration) {
m_decorationId = -1;
} else if (!m_internalWindow) {
m_internalId = -1;
}
if (!oldWindow.isNull() && t == oldWindow.data()) {
return;
}
auto seat = waylandServer()->seat();
// disconnect old surface
if (oldWindow) {
disconnect(m_windowGeometryConnection);
m_windowGeometryConnection = QMetaObject::Connection();
}
if (t && t->surface()) {
// FIXME: add input transformation API to KWayland::Server::SeatInterface for touch input
seat->setFocusedTouchSurface(t->surface(), -1 * t->inputTransformation().map(t->pos()) + t->pos());
m_windowGeometryConnection = connect(t, &Toplevel::geometryChanged, this,
[this] {
if (m_window.isNull()) {
return;
}
auto seat = waylandServer()->seat();
if (m_window.data()->surface() != seat->focusedTouchSurface()) {
return;
}
auto t = m_window.data();
seat->setFocusedTouchSurfacePosition(-1 * t->inputTransformation().map(t->pos()) + t->pos());
}
);
} else {
seat->setFocusedTouchSurface(nullptr);
t = nullptr;
}
if (!t) {
m_window.clear();
return;
}
m_window = QPointer<Toplevel>(t);
}
void TouchInputRedirection::insertId(quint32 internalId, qint32 kwaylandId)
{
m_idMapper.insert(internalId, kwaylandId);
}
qint32 TouchInputRedirection::mappedId(quint32 internalId)
{
auto it = m_idMapper.constFind(internalId);
if (it != m_idMapper.constEnd()) {
return it.value();
}
return -1;
}
void TouchInputRedirection::removeId(quint32 internalId)
{
m_idMapper.remove(internalId);
}
void TouchInputRedirection::processDown(qint32 id, const QPointF &pos, quint32 time, LibInput::Device *device)
{
Q_UNUSED(device)
if (!m_inited) {
return;
}
m_windowUpdatedInCycle = false;
m_input->processSpies(std::bind(&InputEventSpy::touchDown, std::placeholders::_1, id, pos, time));
m_input->processFilters(std::bind(&InputEventFilter::touchDown, std::placeholders::_1, id, pos, time));
m_windowUpdatedInCycle = false;
}
void TouchInputRedirection::processUp(qint32 id, quint32 time, LibInput::Device *device)
{
Q_UNUSED(device)
if (!m_inited) {
return;
}
m_windowUpdatedInCycle = false;
m_input->processSpies(std::bind(&InputEventSpy::touchUp, std::placeholders::_1, id, time));
m_input->processFilters(std::bind(&InputEventFilter::touchUp, std::placeholders::_1, id, time));
m_windowUpdatedInCycle = false;
}
void TouchInputRedirection::processMotion(qint32 id, const QPointF &pos, quint32 time, LibInput::Device *device)
{
Q_UNUSED(device)
if (!m_inited) {
return;
}
m_windowUpdatedInCycle = false;
m_input->processSpies(std::bind(&InputEventSpy::touchMotion, std::placeholders::_1, id, pos, time));
m_input->processFilters(std::bind(&InputEventFilter::touchMotion, std::placeholders::_1, id, pos, time));
m_windowUpdatedInCycle = false;
}
void TouchInputRedirection::cancel()
{
if (!m_inited) {
return;
}
waylandServer()->seat()->cancelTouchSequence();
m_idMapper.clear();
}
void TouchInputRedirection::frame()
{
if (!m_inited) {
return;
}
waylandServer()->seat()->touchFrame();
}
}
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