Lomiri
System.cpp
1/*
2 * Copyright (C) 2018 The UBports project
3 * Copyright (C) 2014-2016 Canonical Ltd.
4 *
5 * This program is free software: you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 3, as published
7 * by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranties of
11 * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
12 * PURPOSE. See the GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#include "System.h"
19
20#include <QDBusPendingCall>
21#include <QDBusMessage>
22#include <QDBusConnection>
23#include <QDBusMetaType>
24#include <QDir>
25#include <QFile>
26#include <QLocale>
27#include <QMap>
28#include <QProcess>
29#include <QDebug>
30#include <QSettings>
31#include <QStringBuilder>
32
33System::System()
34 : QObject()
35{
36 // Register the argument needed for UpdateActivationEnvironment below
37 qDBusRegisterMetaType<QMap<QString,QString>>();
38
39 if(!wizardEnabled()) {
40 m_fsWatcher.addPath(wizardEnabledPath());
41 }
42 connect(&m_fsWatcher, &QFileSystemWatcher::fileChanged, this, &System::watcherFileChanged);
43}
44
45QString System::wizardEnabledPath()
46{
47 return QDir::home().filePath(QStringLiteral(".config/lomiri/wizard-has-run"));
48}
49
50QString System::currentFrameworkPath()
51{
52 QFileInfo f("/usr/share/click/frameworks/current");
53 return f.canonicalFilePath();
54}
55
56/*
57wizardEnabled and isUpdate logic
58
59if wizard-has-run does NOT exist == is new install
60if wizard-has-run exists but does NOT match current framework == is update
61if wizard-has-run exists but does match current framework == show no wizard
62*/
63
64bool System::wizardPathExists() {
65 return QFile::exists(wizardEnabledPath());
66}
67
68bool System::wizardEnabled() const
69{
70 if (!wizardPathExists()) {
71 return true;
72 }
73 return isUpdate();
74}
75
76QString System::readCurrentFramework()
77{
78 QFile f(currentFrameworkPath());
79 if (!f.open(QFile::ReadOnly | QFile::Text)) return "";
80 QTextStream in(&f);
81 return in.readAll();
82}
83
84QString System::readWizardEnabled()
85{
86 QFile f(wizardEnabledPath());
87 if (!f.open(QFile::ReadOnly | QFile::Text)) return "";
88 QTextStream in(&f);
89 return in.readAll();
90}
91
92QString System::version() const
93{
94 return readCurrentFramework();
95}
96
97bool System::isUpdate() const
98{
99 if (!wizardPathExists()) {
100 return false;
101 }
102
103 return readCurrentFramework() != readWizardEnabled();
104}
105
106void System::setWizardEnabled(bool enabled)
107{
108 if (wizardEnabled() == enabled && !isUpdate())
109 return;
110
111 if (enabled) {
112 QFile::remove(wizardEnabledPath());
113 } else {
114 QDir(wizardEnabledPath()).mkpath(QStringLiteral(".."));
115 if (QFile::exists(wizardEnabledPath())) {
116 QFile::remove(wizardEnabledPath());
117 }
118 // For special cases check if wizardEnabledPath is a folder
119 if (QDir(wizardEnabledPath()).exists()) {
120 QDir(wizardEnabledPath()).removeRecursively();
121 }
122 if (!QFile::copy(currentFrameworkPath(), wizardEnabledPath())) {
123 // Make en empty file if framework does not exist
124 QFile f(wizardEnabledPath());
125 f.open(QFile::WriteOnly);
126 }
127 m_fsWatcher.addPath(wizardEnabledPath());
128 Q_EMIT wizardEnabledChanged();
129 Q_EMIT isUpdateChanged();
130 }
131}
132
133void System::watcherFileChanged()
134{
135 Q_EMIT wizardEnabledChanged();
136 Q_EMIT isUpdateChanged();
137 m_fsWatcher.removePath(wizardEnabledPath());
138}
139
140void System::setSessionVariable(const QString &variable, const QString &value)
141{
142 // We need to update both systemd's and DBus's environment
143 QStringList vars = { variable % QChar('=') % value };
144 QDBusMessage systemdMsg = QDBusMessage::createMethodCall(QStringLiteral("org.freedesktop.systemd1"),
145 QStringLiteral("/org/freedesktop/systemd1"),
146 QStringLiteral("org.freedesktop.systemd1.Manager"),
147 QStringLiteral("SetEnvironment"));
148 systemdMsg << QVariant::fromValue(vars);
149 QDBusConnection::sessionBus().asyncCall(systemdMsg);
150
151 QMap<QString,QString> valueMap;
152 valueMap.insert(variable, value);
153
154 QDBusMessage dbusMsg = QDBusMessage::createMethodCall(QStringLiteral("org.freedesktop.DBus"),
155 QStringLiteral("/org/freedesktop/DBus"),
156 QStringLiteral("org.freedesktop.DBus"),
157 QStringLiteral("UpdateActivationEnvironment"));
158
159 dbusMsg << QVariant::fromValue(valueMap);
160 QDBusConnection::sessionBus().asyncCall(dbusMsg);
161}
162
163void System::updateSessionLocale(const QString &locale)
164{
165 const QString language = locale.split(QStringLiteral("."))[0];
166
167 setSessionVariable(QStringLiteral("LANGUAGE"), language);
168 setSessionVariable(QStringLiteral("LANG"), locale);
169 setSessionVariable(QStringLiteral("LC_ALL"), locale);
170
171 // QLocale caches the default locale on startup, and Qt uses that cached
172 // copy when formatting dates. So manually update it here.
173 QLocale::setDefault(QLocale(locale));
174
175 // Restart bits of the session to pick up new language.
176 // FIXME not implemented
177}
178
179void System::skipUntilFinishedPage()
180{
181 QSettings settings;
182 settings.setValue(QStringLiteral("Wizard/SkipUntilFinishedPage"), true);
183 settings.sync();
184}