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Makefile.am

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    screensaver.cpp 3.26 KiB
    /*!
     * Copyright (C) 2021 by Savoir-faire Linux
     * Author: Albert Babí <albert.babi@savoirfairelinux.com>
     *
     * 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 3 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 "screensaver.h"
    
    #include <QDebug>
    
    ScreenSaver::ScreenSaver(QObject* parent)
    #ifdef Q_OS_LINUX
        : QObject(parent)
        , sessionBus_(QDBusConnection::sessionBus())
        , screenSaverInterface_(nullptr)
    {
        request_ = 0u;
        createInterface();
    }
    #else
        : QObject(parent)
    {}
    #endif
    
    #ifdef Q_OS_LINUX
    bool
    ScreenSaver::createInterface(void)
    {
        if (!sessionBus_.isConnected()) {
            qWarning() << "dbus not connected";
            return false;
        }
    
        for (int i = 0; i < N_SERVICES; i++) {
            screenSaverInterface_ = new QDBusInterface(services_[i],
                                                       paths_[i],
                                                       services_[i],
                                                       sessionBus_);
            if (screenSaverInterface_ && screenSaverInterface_->isValid()) {
                qDebug() << "Screen saver dbus interface: " << services_[i];
                return true;
            }
        }
        qWarning() << "Cannot find dbus interface for screen saver";
        screenSaverInterface_ = nullptr;
        return false;
    }
    #endif
    
    bool
    ScreenSaver::inhibit(void)
    {
        if (isInhibited()) {
            qDebug() << "Screen saver already inhibited";
            return false;
        }
    #ifdef Q_OS_LINUX
        if (!screenSaverInterface_) {
            if (!createInterface()) {
                return false;
            }
        }
    
        QDBusReply<uint> reply = screenSaverInterface_->call("Inhibit", "jami-qt", "In a call");
        if (reply.isValid()) {
            qDebug() << "Screen saver inhibited";
            request_ = static_cast<uint>(reply.value());
            return true;
        } else {
            QDBusError error = reply.error();
            qDebug() << "Error inhibiting screen saver: " << error.message() << error.name();
        }
    #endif
        return false;
    }
    
    bool
    ScreenSaver::uninhibit(void)
    {
        if (!isInhibited()) {
            qDebug() << "Screen saver is not inhibited";
            return false;
        }
    #ifdef Q_OS_LINUX
        if (!screenSaverInterface_) {
            if (!createInterface()) {
                return false;
            }
        }
    
        QDBusReply<void> reply = screenSaverInterface_->call("UnInhibit", static_cast<uint>(request_));
        if (reply.isValid()) {
            qDebug() << "Screen saver uninhibited";
            request_ = 0u;
            return true;
        } else {
            QDBusError error = reply.error();
            qDebug() << "Error uninhibiting screen saver: " << error.message() << error.name();
        }
        request_ = 0u;
    #endif
        return false;
    }
    
    bool
    ScreenSaver::isInhibited(void)
    {
    #ifdef Q_OS_LINUX
        return request_ != 0u;
    #endif
        return false;
    }