File indexing completed on 2024-05-05 03:56:27

 /*
  *  SPDX-FileCopyrightText: 2016 Marco Martin <mart@kde.org>
  *
  *  SPDX-License-Identifier: LGPL-2.0-or-later
  */
 
 #include "settings.h"
 
 #include <QDebug>
 #include <QFile>
 #include <QGuiApplication>
 #include <QIcon>
 #include <QInputDevice>
 #include <QMouseEvent>
 #include <QSettings>
 #include <QStandardPaths>
 #include <QWindow>
 
 #include <QtGui/private/qguiapplication_p.h>
 #include <QtGui/qpa/qplatformmenu.h>
 #include <QtGui/qpa/qplatformtheme.h>
 
 #include "kirigamiplatform_version.h"
 #include "tabletmodewatcher.h"
 
 namespace Kirigami
 {
 namespace Platform
 {
 
 class SettingsSingleton
 {
 public:
     Settings self;
 };
 
 Settings::Settings(QObject *parent)
     : QObject(parent)
     , m_hasTouchScreen(false)
     , m_hasTransientTouchInput(false)
 {
     m_tabletModeAvailable = TabletModeWatcher::self()->isTabletModeAvailable();
     connect(TabletModeWatcher::self(), &TabletModeWatcher::tabletModeAvailableChanged, this, [this](bool tabletModeAvailable) {
         setTabletModeAvailable(tabletModeAvailable);
     });
 
     m_tabletMode = TabletModeWatcher::self()->isTabletMode();
     connect(TabletModeWatcher::self(), &TabletModeWatcher::tabletModeChanged, this, [this](bool tabletMode) {
         setTabletMode(tabletMode);
     });
 
 #if defined(Q_OS_ANDROID) || defined(Q_OS_IOS) || defined(UBUNTU_TOUCH)
     m_mobile = true;
     m_hasTouchScreen = true;
 #else
     // Mostly for debug purposes and for platforms which are always mobile,
     // such as Plasma Mobile
     if (qEnvironmentVariableIsSet("QT_QUICK_CONTROLS_MOBILE")) {
         m_mobile = QByteArrayList{"1", "true"}.contains(qgetenv("QT_QUICK_CONTROLS_MOBILE"));
     } else {
         m_mobile = false;
     }
 
     const auto touchDevices = QInputDevice::devices();
     const auto touchDeviceType = QInputDevice::DeviceType::TouchScreen;
     for (const auto &device : touchDevices) {
         if (device->type() == touchDeviceType) {
             m_hasTouchScreen = true;
             break;
         }
     }
     if (m_hasTouchScreen) {
         connect(qApp, &QGuiApplication::focusWindowChanged, this, [this](QWindow *win) {
             if (win) {
                 win->installEventFilter(this);
             }
         });
     }
 #endif
 
     auto bar = QGuiApplicationPrivate::platformTheme()->createPlatformMenuBar();
     m_hasPlatformMenuBar = bar != nullptr;
     if (bar != nullptr) {
         bar->deleteLater();
     }
 
     const QString configPath = QStandardPaths::locate(QStandardPaths::ConfigLocation, QStringLiteral("kdeglobals"));
     if (QFile::exists(configPath)) {
         QSettings globals(configPath, QSettings::IniFormat);
         globals.beginGroup(QStringLiteral("KDE"));
         m_scrollLines = qMax(1, globals.value(QStringLiteral("WheelScrollLines"), 3).toInt());
     } else {
         m_scrollLines = 3;
     }
 }
 
 Settings::~Settings()
 {
 }
 
 bool Settings::eventFilter(QObject *watched, QEvent *event)
 {
     Q_UNUSED(watched)
     switch (event->type()) {
     case QEvent::TouchBegin:
         setTransientTouchInput(true);
         break;
     case QEvent::MouseButtonPress:
     case QEvent::MouseMove: {
         QMouseEvent *me = static_cast<QMouseEvent *>(event);
         if (me->source() == Qt::MouseEventNotSynthesized) {
             setTransientTouchInput(false);
         }
         break;
     }
     case QEvent::Wheel:
         setTransientTouchInput(false);
     default:
         break;
     }
 
     return false;
 }
 
 void Settings::setTabletModeAvailable(bool mobileAvailable)
 {
     if (mobileAvailable == m_tabletModeAvailable) {
         return;
     }
 
     m_tabletModeAvailable = mobileAvailable;
     Q_EMIT tabletModeAvailableChanged();
 }
 
 bool Settings::isTabletModeAvailable() const
 {
     return m_tabletModeAvailable;
 }
 
 void Settings::setIsMobile(bool mobile)
 {
     if (mobile == m_mobile) {
         return;
     }
 
     m_mobile = mobile;
     Q_EMIT isMobileChanged();
 }
 
 bool Settings::isMobile() const
 {
     return m_mobile;
 }
 
 void Settings::setTabletMode(bool tablet)
 {
     if (tablet == m_tabletMode) {
         return;
     }
 
     m_tabletMode = tablet;
     Q_EMIT tabletModeChanged();
 }
 
 bool Settings::tabletMode() const
 {
     return m_tabletMode;
 }
 
 void Settings::setTransientTouchInput(bool touch)
 {
     if (touch == m_hasTransientTouchInput) {
         return;
     }
 
     m_hasTransientTouchInput = touch;
     if (!m_tabletMode) {
         Q_EMIT hasTransientTouchInputChanged();
     }
 }
 
 bool Settings::hasTransientTouchInput() const
 {
     return m_hasTransientTouchInput || m_tabletMode;
 }
 
 QString Settings::style() const
 {
     return m_style;
 }
 
 void Settings::setStyle(const QString &style)
 {
     m_style = style;
 }
 
 int Settings::mouseWheelScrollLines() const
 {
     return m_scrollLines;
 }
 
 QStringList Settings::information() const
 {
     return {
 #ifndef KIRIGAMI_BUILD_TYPE_STATIC
         tr("KDE Frameworks %1").arg(QStringLiteral(KIRIGAMIPLATFORM_VERSION_STRING)),
 #endif
         tr("The %1 windowing system").arg(QGuiApplication::platformName()),
         tr("Qt %2 (built against %3)").arg(QString::fromLocal8Bit(qVersion()), QStringLiteral(QT_VERSION_STR))};
 }
 
 QVariant Settings::applicationWindowIcon() const
 {
     const QIcon &windowIcon = qApp->windowIcon();
     if (windowIcon.isNull()) {
         return QVariant();
     }
     return windowIcon;
 }
 
 bool Settings::hasPlatformMenuBar() const
 {
     return m_hasPlatformMenuBar;
 }
 
 }
 }
 
 #include "moc_settings.cpp"