| 1 | /* |
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| 2 | This file is part of the KDE Project |
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| 3 | SPDX-FileCopyrightText: 2008 Sebastian Trueg <trueg@kde.org> |
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| 4 | SPDX-FileCopyrightText: 2010-15 Vishesh Handa <vhanda@kde.org> |
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| 5 | |
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| 6 | SPDX-License-Identifier: LGPL-2.0-or-later |
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| 7 | */ |
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| 8 | |
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| 9 | #include "powerstatemonitor.h" |
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| 10 | |
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| 11 | #include <QDBusConnection> |
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| 12 | #include <QDBusMessage> |
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| 13 | #include <QDBusPendingCallWatcher> |
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| 14 | #include <QDBusPendingReply> |
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| 15 | |
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| 16 | using namespace Baloo; |
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| 17 | |
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| 18 | PowerStateMonitor::PowerStateMonitor(QObject* parent) |
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| 19 | : QObject(parent) |
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| 20 | , m_isOnBattery(true) |
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| 21 | { |
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| 22 | // monitor the powermanagement to not drain the battery |
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| 23 | QDBusConnection::sessionBus().connect(QStringLiteral("org.freedesktop.PowerManagement" ), |
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| 24 | QStringLiteral("/org/freedesktop/PowerManagement" ), |
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| 25 | QStringLiteral("org.freedesktop.PowerManagement" ), |
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| 26 | QStringLiteral("PowerSaveStatusChanged" ), |
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| 27 | receiver: this, SLOT(slotPowerManagementStatusChanged(bool))); |
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| 28 | |
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| 29 | QDBusMessage msg = QDBusMessage::createMethodCall(QStringLiteral("org.freedesktop.PowerManagement" ), |
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| 30 | QStringLiteral("/org/freedesktop/PowerManagement" ), |
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| 31 | QStringLiteral("org.freedesktop.PowerManagement" ), |
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| 32 | QStringLiteral("GetPowerSaveStatus" )); |
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| 33 | |
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| 34 | QDBusPendingCall call = QDBusConnection::sessionBus().asyncCall(message: msg); |
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| 35 | QDBusPendingCallWatcher* watcher = new QDBusPendingCallWatcher(call, this); |
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| 36 | connect(sender: watcher, signal: &QDBusPendingCallWatcher::finished, slot: [&](QDBusPendingCallWatcher* watch) { |
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| 37 | QDBusPendingReply<bool> reply = *watch; |
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| 38 | if (!reply.isError()) { |
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| 39 | bool onBattery = reply.argumentAt<0>(); |
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| 40 | slotPowerManagementStatusChanged(conserveResources: onBattery); |
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| 41 | } else { |
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| 42 | slotPowerManagementStatusChanged(conserveResources: false); |
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| 43 | } |
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| 44 | watch->deleteLater(); |
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| 45 | }); |
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| 46 | } |
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| 47 | |
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| 48 | void PowerStateMonitor::slotPowerManagementStatusChanged(bool conserveResources) |
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| 49 | { |
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| 50 | if (m_isOnBattery != conserveResources) { |
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| 51 | m_isOnBattery = conserveResources; |
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| 52 | Q_EMIT powerManagementStatusChanged(conserveResources); |
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| 53 | } |
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| 54 | } |
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| 55 | |
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| 56 | #include "moc_powerstatemonitor.cpp" |
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| 57 | |
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