1 files changed, 107 insertions, 0 deletions
diff --git a/src/gui/osutils/winutils/WinUtils.cpp b/src/gui/osutils/winutils/WinUtils.cpp
new file mode 100644
index 000000000..385a9389a
--- /dev/null
+++ b/src/gui/osutils/winutils/WinUtils.cpp
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2020 KeePassXC Team <team@keepassxc.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 or (at your option)
+ * version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "WinUtils.h"
+#include <QAbstractNativeEventFilter>
+#include <QApplication>
+#include <QDir>
+#include <QSettings>
+
+#include <windows.h>
+
+QPointer<WinUtils> WinUtils::m_instance = nullptr;
+QScopedPointer<WinUtils::DWMEventFilter> WinUtils::m_eventFilter;
+
+WinUtils* WinUtils::instance()
+{
+    if (!m_instance) {
+        m_instance = new WinUtils(qApp);
+    }
+
+    return m_instance;
+}
+
+WinUtils::WinUtils(QObject* parent)
+    : OSUtilsBase(parent)
+{
+}
+
+WinUtils::~WinUtils()
+{
+}
+
+/**
+ * Register event filters to handle native platform events such as theme changes.
+ */
+void WinUtils::registerEventFilters()
+{
+    if (!m_eventFilter) {
+        m_eventFilter.reset(new DWMEventFilter);
+        qApp->installNativeEventFilter(m_eventFilter.data());
+    }
+}
+
+bool WinUtils::DWMEventFilter::nativeEventFilter(const QByteArray& eventType, void* message, long*)
+{
+    if (eventType != "windows_generic_MSG") {
+        return false;
+    }
+
+    auto* msg = static_cast<MSG*>(message);
+    if (!msg->hwnd) {
+        return false;
+    }
+    switch (msg->message) {
+    case WM_CREATE:
+    case WM_INITDIALOG: {
+        if (winUtils()->isDarkMode()) {
+            // TODO: indicate dark mode support for black title bar
+        }
+        break;
+    }
+    }
+
+    return false;
+}
+
+bool WinUtils::isDarkMode() const
+{
+    QSettings settings(R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize)",
+                       QSettings::NativeFormat);
+    return settings.value("AppsUseLightTheme", 1).toInt() == 0;
+}
+
+bool WinUtils::isLaunchAtStartupEnabled() const
+{
+    return QSettings(R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run)", QSettings::NativeFormat)
+        .contains(qAppName());
+}
+
+void WinUtils::setLaunchAtStartup(bool enable)
+{
+    QSettings reg(R"(HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run)", QSettings::NativeFormat);
+    if (enable) {
+        reg.setValue(qAppName(), QString("\"%1\"").arg(QDir::toNativeSeparators(QApplication::applicationFilePath())));
+    } else {
+        reg.remove(qAppName());
+    }
+}
+
+bool WinUtils::isCapslockEnabled()
+{
+    return GetKeyState(VK_CAPITAL) == 1;
+}