kdeconnect-kde/plugins/mousepad/waylandremoteinput.cpp

/**
 * Copyright 2015 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) 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 "waylandremoteinput.h"

#include <QSizeF>
#include <QDebug>

#include <KLocalizedString>
#include <KWayland/Client/connection_thread.h>
#include <KWayland/Client/fakeinput.h>
#include <KWayland/Client/registry.h>

WaylandRemoteInput::WaylandRemoteInput(QObject* parent)
    : AbstractRemoteInput(parent)
    , m_waylandInput(nullptr)
    , m_waylandAuthenticationRequested(false)
{
    using namespace KWayland::Client;
    ConnectionThread* connection = ConnectionThread::fromApplication(this);
    if (!connection) {
        qDebug() << "failed to get the Connection from Qt, Wayland remote input will not work";
        return;
    }
    Registry* registry = new Registry(this);
    registry->create(connection);
    connect(registry, &Registry::fakeInputAnnounced, this,
        [this, registry] (quint32 name, quint32 version) {
            m_waylandInput = registry->createFakeInput(name, version, this);
        }
    );
    registry->setup();
}

bool WaylandRemoteInput::handlePacket(const NetworkPacket& np)
{
    if (!m_waylandInput) {
        return false;
    }

    if (!m_waylandAuthenticationRequested) {
        m_waylandInput->authenticate(i18n("KDE Connect"), i18n("Use your phone as a touchpad and keyboard"));
        m_waylandAuthenticationRequested = true;
    }

    const float dx = np.get<float>(QStringLiteral("dx"), 0);
    const float dy = np.get<float>(QStringLiteral("dy"), 0);

    const bool isSingleClick = np.get<bool>(QStringLiteral("singleclick"), false);
    const bool isDoubleClick = np.get<bool>(QStringLiteral("doubleclick"), false);
    const bool isMiddleClick = np.get<bool>(QStringLiteral("middleclick"), false);
    const bool isRightClick = np.get<bool>(QStringLiteral("rightclick"), false);
    const bool isSingleHold = np.get<bool>(QStringLiteral("singlehold"), false);
    const bool isSingleRelease = np.get<bool>(QStringLiteral("singlerelease"), false);
    const bool isScroll = np.get<bool>(QStringLiteral("scroll"), false);
    const QString key = np.get<QString>(QStringLiteral("key"), QLatin1String(""));
    const int specialKey = np.get<int>(QStringLiteral("specialKey"), 0);

    if (isSingleClick || isDoubleClick || isMiddleClick || isRightClick || isSingleHold || isScroll || !key.isEmpty() || specialKey) {

        if (isSingleClick) {
            m_waylandInput->requestPointerButtonClick(Qt::LeftButton);
        } else if (isDoubleClick) {
            m_waylandInput->requestPointerButtonClick(Qt::LeftButton);
            m_waylandInput->requestPointerButtonClick(Qt::LeftButton);
        } else if (isMiddleClick) {
            m_waylandInput->requestPointerButtonClick(Qt::MiddleButton);
        } else if (isRightClick) {
            m_waylandInput->requestPointerButtonClick(Qt::RightButton);
        } else if (isSingleHold){
            //For drag'n drop
            m_waylandInput->requestPointerButtonPress(Qt::LeftButton);
        } else if (isSingleRelease){
            //For drag'n drop. NEVER USED (release is done by tapping, which actually triggers a isSingleClick). Kept here for future-proofnes.
            m_waylandInput->requestPointerButtonRelease(Qt::LeftButton);
        } else if (isScroll) {
            m_waylandInput->requestPointerAxis(Qt::Vertical, dy);
        } else if (!key.isEmpty() || specialKey) {
            // TODO: implement key support
        }

    } else { //Is a mouse move event
        m_waylandInput->requestPointerMove(QSizeF(dx, dy));
    }
    return true;
}