fix: fix treeland get stuck in lockscreen after crash recovery

src/common/Messages.h

@@ -50,6 +50,7 @@ namespace DDM {
         InformationMessage,
         UserActivateMessage,
         SwitchToGreeter,
+        UserLoggedIn,
     };
 
     enum Capability {

src/daemon/Display.cpp

@@ -31,9 +31,11 @@
 #include "SocketServer.h"
 #include "Greeter.h"
 #include "Utils.h"
+#include "Messages.h"
+#include "SocketWriter.h"
 
 #include <QDebug>
 #include <QFile>
 #include <QTimer>
 #include <QLocalSocket>
 
@@ -149,6 +151,9 @@
         connect(m_displayServer, &DisplayServer::started, this, &Display::displayServerStarted);
         connect(m_displayServer, &DisplayServer::stopped, this, &Display::stop);
 
+        // connect connected signal
+        connect(m_socketServer, &SocketServer::connected, this, &Display::connected);
+
         // connect login signal
         connect(m_socketServer, &SocketServer::login, this, &Display::login);
 
@@ -365,6 +370,16 @@
         emit stopped();
     }
 
+    void Display::connected(QLocalSocket *socket) {
+        m_socket = socket;
+        // send logined user (for possible crash recovery)
+        SocketWriter writer(socket);
+        for (Auth *auth : loginedSession()) {
+            if (auth->isActive())
+                writer << quint32(DaemonMessages::UserLoggedIn) << auth->user();
+        }
+    }
+
     void Display::login(QLocalSocket *socket,
                         const QString &user, const QString &password,
                         const Session &session) {

src/daemon/Display.h

@@ -75,6 +75,7 @@ namespace DDM {
         bool start();
         void stop();
 
+        void connected(QLocalSocket *socket);
         void login(QLocalSocket *socket,
                    const QString &user, const QString &password,
                    const Session &session);