Rename login interface to UKUI ScreenSaver

Replace m_loginInterface/m_loginConnected with
m_ukuiInterface/m_ukuiConnected, update connection/teardown logic and
log messages, and query lock state via UKUI's GetLockState method
instead of the previous login manager property call.

src/screenlockdetector.cpp

@@ -16,10 +16,10 @@ ScreenLockDetector::ScreenLockDetector(QObject *parent)
     , m_isLocked(false)
 #ifdef Q_OS_LINUX
     , m_gnomeInterface(nullptr)
-    , m_loginInterface(nullptr)
+    , m_ukuiInterface(nullptr)
     , m_deepinInterface(nullptr)
     , m_gnomeConnected(false)
-    , m_loginConnected(false)
+    , m_ukuiConnected(false)
     , m_deepinConnected(false)
 #endif
 #ifdef Q_OS_MAC
@@ -36,9 +36,9 @@ ScreenLockDetector::~ScreenLockDetector()
         m_gnomeInterface = nullptr;
     }
 
-    if (m_loginInterface) {
+    if (m_ukuiInterface) {
-        delete m_loginInterface;
+        delete m_ukuiInterface;
-        m_loginInterface = nullptr;
+        m_ukuiInterface = nullptr;
     }
 
     if (m_deepinInterface) {
@@ -101,9 +101,9 @@ bool ScreenLockDetector::initialize()
     // 尝试连接到不同的DBus接口
     bool deepinOk = connectToDeepinDDE();
     bool gnomeOk = connectToGnomeScreenSaver();
-    bool loginOk = connectToUkuiManager();
+    bool ukuiOk = connectToUkuiManager();
 
-    if (!deepinOk && !gnomeOk && !loginOk) {
+    if (!deepinOk && !gnomeOk && !ukuiOk) {
         qWarning() << "Failed to connect to any screen lock detection service";
         qWarning() << "Make sure you are running on a supported Linux desktop environment";
         return false;
@@ -116,7 +116,7 @@ bool ScreenLockDetector::initialize()
     qDebug() << "ScreenLockDetector initialized successfully on Linux";
     qDebug() << "Deepin DDE connected:" << m_deepinConnected;
     qDebug() << "GNOME ScreenSaver connected:" << m_gnomeConnected;
-    qDebug() << "Login Manager connected:" << m_loginConnected;
+    qDebug() << "UKUI ScreenSaver  connected:" << m_ukuiConnected;
     qDebug() << "=================================================";
 
     return true;
@@ -200,7 +200,7 @@ bool ScreenLockDetector::connectToUkuiManager()
     qDebug() << "\n--- Connecting to ukui ScreenSaver ---";
 
     QString sessionPath = "/";
-    m_loginInterface = new QDBusInterface(
+    m_ukuiInterface = new QDBusInterface(
         "org.ukui.ScreenSaver",
         sessionPath,
         "org.ukui.ScreenSaver",
@@ -208,7 +208,7 @@ bool ScreenLockDetector::connectToUkuiManager()
         this
     );
 
-    if (m_loginInterface->isValid()) {
+    if (m_ukuiInterface->isValid()) {
         qDebug() << "ukui ScreenSaver interface is valid for session:" << sessionPath;
 
         // 连接Lock和Unlock信号到特定会话
@@ -234,15 +234,15 @@ bool ScreenLockDetector::connectToUkuiManager()
         qDebug() << "Session Unlock signal connected:" << unlockConnected;
 
         if (lockConnected || unlockConnected) {
-            m_loginConnected = true;
+            m_ukuiConnected = true;
-            qDebug() << "Successfully connected to Login Manager via session path";
+            qDebug() << "Successfully connected to UKUI ScreenSaver  via session path";
             return true;
         }
     }
 
-    qWarning() << "Failed to connect to Login Manager signals";
+    qWarning() << "Failed to connect to UKUI ScreenSaver  signals";
-    delete m_loginInterface;
+    delete m_ukuiInterface;
-    m_loginInterface = nullptr;
+    m_ukuiInterface = nullptr;
     return false;
 }
 
@@ -383,26 +383,15 @@ void ScreenLockDetector::queryCurrentLockState()
     }
 
     // 尝试从登录管理器查询锁定状态
-    if (m_loginInterface && m_loginInterface->isValid()) {
+    if (m_ukuiInterface && m_ukuiInterface->isValid()) {
-        qDebug() << "Querying Login Manager lock state...";
+        qDebug() << "Querying UKUI ScreenSaver  lock state...";
 
-        // 尝试读取 LockedHint 属性
+        QDBusReply<bool> reply = m_ukuiInterface->call("GetLockState");
-        QDBusMessage msg = QDBusMessage::createMethodCall(
-            "org.freedesktop.login1",
-            m_loginInterface->path(),
-            "org.freedesktop.DBus.Properties",
-            "Get"
-        );
-        msg << "org.freedesktop.login1.Session" << "LockedHint";
-
-        QDBusReply<QVariant> reply = QDBusConnection::systemBus().call(msg);
         if (reply.isValid()) {
-            bool locked = reply.value().toBool();
+            bool active = reply.value();
-            qDebug() << "  LockedHint property:" << (locked ? "LOCKED" : "UNLOCKED");
+            qDebug() << "  Current UKUI ScreenSaver state:" << (active ? "ACTIVE/LOCKED" : "INACTIVE/UNLOCKED");
-            setLockState(locked);
+            setLockState(active);
             return;
-        } else {
-            qDebug() << "  Could not read LockedHint:" << reply.error().message();
         }
     }
 

src/screenlockdetector.h

@@ -136,10 +136,10 @@ private:
 
 #ifdef Q_OS_LINUX
     QDBusInterface *m_gnomeInterface;   // GNOME屏幕保护程序接口
-    QDBusInterface *m_loginInterface;   // 登录管理器接口
+    QDBusInterface *m_ukuiInterface;    // UKUI屏幕保护接口
     QDBusInterface *m_deepinInterface;  // Deepin DDE接口
     bool m_gnomeConnected;              // GNOME接口是否连接成功
-    bool m_loginConnected;              // 登录管理器接口是否连接成功
+    bool m_ukuiConnected;               // UKUI接口是否连接成功
     bool m_deepinConnected;             // Deepin DDE接口是否连接成功
 #endif