kwin/tabletmodemanager.cpp

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/*
* Copyright 2018 Marco Martin <mart@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) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* 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 "tabletmodemanager.h"
#include "input.h"
#include "input_event.h"
#include "input_event_spy.h"
#include "libinput/device.h"
#include <QDBusConnection>
using namespace KWin;
KWIN_SINGLETON_FACTORY_VARIABLE(TabletModeManager, s_manager)
class KWin::TabletModeInputEventSpy : public InputEventSpy
{
public:
explicit TabletModeInputEventSpy(TabletModeManager *parent);
void switchEvent(SwitchEvent *event) override;
private:
TabletModeManager *m_parent;
};
TabletModeInputEventSpy::TabletModeInputEventSpy(TabletModeManager *parent)
: m_parent(parent)
{
}
void TabletModeInputEventSpy::switchEvent(SwitchEvent *event)
{
if (!event->device()->isTabletModeSwitch()) {
return;
}
switch (event->state()) {
case SwitchEvent::State::Off:
m_parent->setIsTablet(false);
break;
case SwitchEvent::State::On:
m_parent->setIsTablet(true);
break;
default:
Q_UNREACHABLE();
}
}
TabletModeManager::TabletModeManager(QObject *parent)
: QObject(parent),
m_spy(new TabletModeInputEventSpy(this))
{
input()->installInputEventSpy(m_spy);
QDBusConnection::sessionBus().registerObject(QStringLiteral("/org/kde/KWin"),
QStringLiteral("org.kde.KWin.TabletModeManager"),
this,
QDBusConnection::ExportAllProperties | QDBusConnection::ExportAllSignals
);
connect(input(), &InputRedirection::hasTabletModeSwitchChanged, this, &TabletModeManager::tabletModeAvailableChanged);
}
bool TabletModeManager::isTabletModeAvailable() const
{
return input()->hasTabletModeSwitch();
}
bool TabletModeManager::isTablet() const
{
return m_isTabletMode;
}
void TabletModeManager::setIsTablet(bool tablet)
{
if (m_isTabletMode == tablet) {
return;
}
m_isTabletMode = tablet;
emit tabletModeChanged(tablet);
}