Added dark mode

Signed-off-by: Claudio Cambra <claudio.cambra@gmail.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/gui/systray.cpp b/src/gui/systray.cpp
index a5a352dd4..4a6391d8c 100644
--- a/src/gui/systray.cpp
+++ b/src/gui/systray.cpp
@@ -31,6 +31,7 @@
 #include <QQuickWindow>
 #include <QScreen>
 #include <QMenu>
+#include <QGuiApplication>
 
 #ifdef USE_FDO_NOTIFICATIONS
 #include <QDBusConnection>
@@ -129,6 +130,12 @@ Systray::Systray()
     });
 #endif
 
+    const auto ptr = qobject_cast<QGuiApplication *>(QGuiApplication::instance());
+    if(ptr) {
+        _guiAppInstance.reset(ptr);
+        connect(ptr, &QGuiApplication::paletteChanged, this, &Systray::darkModeChanged);
+    }
+
     connect(UserModel::instance(), &UserModel::newUserSelected,
         this, &Systray::slotNewUserSelected);
     connect(UserModel::instance(), &UserModel::addAccount,
@@ -224,6 +231,24 @@ bool Systray::useNormalWindow() const
     return cfg.showMainDialogAsNormalWindow();
 }
 
+bool Systray::darkMode()
+{
+#if defined(Q_OS_MACOS)
+    return osXInDarkMode();
+// Windows: Check registry for dark mode
+#elif defined(Q_OS_WIN)
+    const auto darkModeSubkey = QStringLiteral("Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize");
+    if (!Utility::registryKeyExists(HKEY_CURRENT_USER, darkModeSubkey)) {
+        return false;
+    }
+    const auto darkMode = Utility::registryGetKeyValue(HKEY_CURRENT_USER, darkModeSubkey, QStringLiteral("AppsUseLightTheme")).toBool();
+    return darkMode;
+// Probably Linux
+#else
+    return Theme::isDarkColor(QGuiApplication::palette().window().color());
+#endif
+}
+
 Q_INVOKABLE void Systray::setOpened()
 {
     _isOpen = true;