Lomiri
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LocationWatcher.cpp
1/*
2 * Copyright (C) 2021 UBports Foundation.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 *
16 * Authors: Alberto Mardegan <mardy@users.sourceforge.net>
17 */
18
19#include "LocationWatcher.h"
20
21#include "ProcessControl.h"
22
23#include <QDBusConnection>
24#include <QDebug>
25#include <QStringList>
26#include <QTimer>
27
28namespace {
29const QString locationServiceName = QStringLiteral("com.lomiri.location.Service");
30const QString locationObjectPath = QStringLiteral("/com/lomiri/location/Service");
31const QString propertiesInterface = QStringLiteral("org.freedesktop.DBus.Properties");
32const QString methodPropertiesChanged = QStringLiteral("PropertiesChanged");
33} // namespace
34
35class LocationWatcherPrivate: public QObject
36{
37 Q_OBJECT
38
39public:
40 LocationWatcherPrivate(ProcessControl *processControl);
41
42private Q_SLOTS:
43 void onPropertiesChanged(const QString &interface,
44 const QVariantMap &changedProps,
45 const QStringList &invalidatedProps);
46
47private:
48 friend class LocationWatcher;
49 ProcessControl *m_processControl;
50 QDBusConnection m_connection;
51 QStringList m_clientApplications;
52};
53
54LocationWatcherPrivate::LocationWatcherPrivate(ProcessControl *processControl):
55 QObject(),
56 m_processControl(processControl),
57 m_connection(QDBusConnection::systemBus())
58{
59 m_connection.connect(locationServiceName,
60 locationObjectPath,
61 propertiesInterface,
62 methodPropertiesChanged,
63 this,
64 SLOT(onPropertiesChanged(QString,QVariantMap,QStringList)));
65}
66
67void LocationWatcherPrivate::onPropertiesChanged(const QString &interface,
68 const QVariantMap &changedProps,
69 const QStringList &invalidatedProps)
70{
71 Q_UNUSED(interface);
72 Q_UNUSED(invalidatedProps);
73
74 qDebug() << Q_FUNC_INFO << changedProps;
75 const auto i = changedProps.find(QStringLiteral("ClientApplications"));
76 if (i != changedProps.end()) {
77 const QStringList appIds = i.value().toStringList();
78 qDebug() << "Location clients changed:" << appIds;
79 /* We need to strip off the version (app IDs are in the form
80 * "<publisher>_<app-name>_<version>") */
81 m_clientApplications.clear();
82 for (const QString &appId: appIds) {
83 QStringList parts = appId.split('_');
84 QString versionLessAppId = parts.mid(0, 2).join('_');
85 m_clientApplications.append(versionLessAppId);
86 }
87 m_processControl->setAwakenProcesses(m_clientApplications);
88 }
89}
90
91LocationWatcher::LocationWatcher(ProcessControl *processControl):
92 QObject(processControl),
93 d_ptr(new LocationWatcherPrivate(processControl))
94{
95}
96
97LocationWatcher::~LocationWatcher() = default;
98
99#include "LocationWatcher.moc"