From 4210f6b34c4f48fc4cbeb501086c92f6dd7a72e7 Mon Sep 17 00:00:00 2001
From: Reion Wong <reionwong@gmail.com>
Date: Wed, 2 Sep 2026 23:50:07 -0400
Subject: [PATCH] fix(settings-daemon): persist mouse settings

---
 settings-daemon/mouse/mousemanager.cpp | 38 ++++++++++++++++++++++++++
 settings-daemon/mouse/mousemanager.h   |  4 +++
 2 files changed, 42 insertions(+)

diff --git a/settings-daemon/mouse/mousemanager.cpp b/settings-daemon/mouse/mousemanager.cpp
index f55913a..3986ddb 100644
--- a/settings-daemon/mouse/mousemanager.cpp
+++ b/settings-daemon/mouse/mousemanager.cpp
@@ -5,14 +5,24 @@
 
 #include <QDBusConnection>
 
+namespace
+{
+constexpr auto s_leftHandedKey = "leftHanded";
+constexpr auto s_naturalScrollKey = "naturalScroll";
+constexpr auto s_pointerAccelerationKey = "pointerAcceleration";
+constexpr auto s_accelerationProfileKey = "accelerationProfile";
+}
+
 Mouse::Mouse(QObject *parent)
     : QObject(parent)
     , m_backend(new KWinInputBackend(KWinInputBackend::DeviceType::Pointer, this))
+    , m_settings(QSettings::UserScope, QStringLiteral("cutefishos"), QStringLiteral("mouse"))
 {
     new MouseAdaptor(this);
     QDBusConnection::sessionBus().registerObject(QStringLiteral("/Mouse"), this);
 
     connect(m_backend, &KWinInputBackend::devicesChanged, this, [this] {
+        restoreSettings();
         emit availableChanged();
         emit leftHandedChanged();
         emit accelerationChanged();
@@ -23,6 +33,26 @@ Mouse::Mouse(QObject *parent)
 
 Mouse::~Mouse() = default;
 
+void Mouse::restoreSettings()
+{
+    if (!m_backend->available())
+        return;
+
+    const auto restoreBoolean = [this](const QString &property, const char *key) {
+        if (m_settings.contains(QLatin1String(key)))
+            m_backend->setBooleanProperty(property, m_settings.value(QLatin1String(key)).toBool());
+    };
+
+    restoreBoolean(QStringLiteral("leftHanded"), s_leftHandedKey);
+    restoreBoolean(QStringLiteral("naturalScroll"), s_naturalScrollKey);
+    restoreBoolean(QStringLiteral("pointerAccelerationProfileFlat"), s_accelerationProfileKey);
+
+    if (m_settings.contains(QLatin1String(s_pointerAccelerationKey))) {
+        m_backend->setRealProperty(QStringLiteral("pointerAcceleration"),
+                                   m_settings.value(QLatin1String(s_pointerAccelerationKey)).toReal());
+    }
+}
+
 bool Mouse::available() const
 {
     return m_backend->available();
@@ -37,6 +67,8 @@ void Mouse::setLeftHanded(bool enabled)
 {
     if (leftHanded() == enabled)
         return;
+    m_settings.setValue(QLatin1String(s_leftHandedKey), enabled);
+    m_settings.sync();
     m_backend->setBooleanProperty(QStringLiteral("leftHanded"), enabled);
     emit leftHandedChanged();
 }
@@ -50,6 +82,8 @@ void Mouse::setAcceleration(bool enabled)
 {
     if (acceleration() == enabled)
         return;
+    m_settings.setValue(QLatin1String(s_accelerationProfileKey), enabled);
+    m_settings.sync();
     m_backend->setBooleanProperty(QStringLiteral("pointerAccelerationProfileFlat"), enabled);
     m_backend->setBooleanProperty(QStringLiteral("pointerAccelerationProfileAdaptive"), !enabled);
     emit accelerationChanged();
@@ -64,6 +98,8 @@ void Mouse::setNaturalScroll(bool enabled)
 {
     if (naturalScroll() == enabled)
         return;
+    m_settings.setValue(QLatin1String(s_naturalScrollKey), enabled);
+    m_settings.sync();
     m_backend->setBooleanProperty(QStringLiteral("naturalScroll"), enabled);
     emit naturalScrollChanged();
 }
@@ -78,6 +114,8 @@ void Mouse::setPointerAcceleration(qreal value)
     value = qBound<qreal>(-1.0, value, 1.0);
     if (qFuzzyCompare(1.0 + pointerAcceleration(), 1.0 + value))
         return;
+    m_settings.setValue(QLatin1String(s_pointerAccelerationKey), value);
+    m_settings.sync();
     m_backend->setRealProperty(QStringLiteral("pointerAcceleration"), value);
     emit pointerAccelerationChanged();
 }
diff --git a/settings-daemon/mouse/mousemanager.h b/settings-daemon/mouse/mousemanager.h
index 66b8e55..0cb14ce 100644
--- a/settings-daemon/mouse/mousemanager.h
+++ b/settings-daemon/mouse/mousemanager.h
@@ -21,6 +21,7 @@
 #define MOUSE_H
 
 #include <QObject>
+#include <QSettings>
 
 class KWinInputBackend;
 
@@ -58,7 +59,10 @@ signals:
     void pointerAccelerationChanged();
 
 private:
+    void restoreSettings();
+
     KWinInputBackend *m_backend;
+    QSettings m_settings;
 };
 
 #endif // MOUSE_H