kwin/libinput/connection.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2014 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 "connection.h"
#include "context.h"
#include "events.h"
#include "../logind.h"
#include <QDebug>
#include <QSocketNotifier>
#include <libinput.h>
namespace KWin
{
namespace LibInput
{
Connection *Connection::s_self = nullptr;
static Context *s_context = nullptr;
Connection::Connection(QObject *parent)
: Connection(nullptr, parent)
{
// only here to fix build, using will crash, BUG 343529
}
Connection *Connection::create(QObject *parent)
{
Q_ASSERT(!s_self);
static Udev s_udev;
if (!s_udev.isValid()) {
qWarning() << "Failed to initialize udev";
return nullptr;
}
if (!s_context) {
s_context = new Context(s_udev);
if (!s_context->isValid()) {
qWarning() << "Failed to create context from udev";
delete s_context;
s_context = nullptr;
return nullptr;
}
// TODO: don't hardcode seat name
if (!s_context->assignSeat("seat0")) {
qWarning() << "Failed to assign seat seat0";
delete s_context;
s_context = nullptr;
return nullptr;
}
}
s_self = new Connection(s_context, parent);
return s_self;
}
Connection::Connection(Context *input, QObject *parent)
: QObject(parent)
, m_input(input)
, m_notifier(nullptr)
{
Q_ASSERT(m_input);
}
Connection::~Connection()
{
s_self = nullptr;
delete s_context;
s_context = nullptr;
}
void Connection::setup()
{
Q_ASSERT(!m_notifier);
m_notifier = new QSocketNotifier(m_input->fileDescriptor(), QSocketNotifier::Read, this);
connect(m_notifier, &QSocketNotifier::activated, this, &Connection::handleEvent);
LogindIntegration *logind = LogindIntegration::self();
connect(logind, &LogindIntegration::sessionActiveChanged, this,
[this](bool active) {
active ? m_input->resume() : m_input->suspend();
}
);
}
void Connection::handleEvent()
{
do {
m_input->dispatch();
QScopedPointer<Event> event(m_input->event());
if (event.isNull()) {
break;
}
switch (event->type()) {
case LIBINPUT_EVENT_KEYBOARD_KEY: {
KeyEvent *ke = static_cast<KeyEvent*>(event.data());
emit keyChanged(ke->key(), ke->state(), ke->time());
break;
}
case LIBINPUT_EVENT_POINTER_AXIS: {
PointerEvent *pe = static_cast<PointerEvent*>(event.data());
emit pointerAxisChanged(pe->axis(), pe->axisValue(), pe->time());
break;
}
case LIBINPUT_EVENT_POINTER_BUTTON: {
PointerEvent *pe = static_cast<PointerEvent*>(event.data());
emit pointerButtonChanged(pe->button(), pe->buttonState(), pe->time());
break;
}
case LIBINPUT_EVENT_POINTER_MOTION: {
PointerEvent *pe = static_cast<PointerEvent*>(event.data());
emit pointerMotion(pe->delta(), pe->time());
break;
}
case LIBINPUT_EVENT_POINTER_MOTION_ABSOLUTE: {
PointerEvent *pe = static_cast<PointerEvent*>(event.data());
emit pointerMotionAbsolute(pe->absolutePos(), pe->absolutePos(m_size), pe->time());
break;
}
default:
// nothing
break;
}
} while (true);
}
void Connection::setScreenSize(const QSize &size)
{
m_size = size;
}
}
}