Switch virtual teminal through logind seat

When we get the key code for virtual terminal switching we pass it
to Logind instead of going through the "legacy" ioctl interface.

input.cpp

@@ -114,7 +114,7 @@ public:
         if (event->type() == QEvent::KeyPress && !event->isAutoRepeat()) {
             const xkb_keysym_t keysym = event->nativeVirtualKey();
             if (keysym >= XKB_KEY_XF86Switch_VT_1 && keysym <= XKB_KEY_XF86Switch_VT_12) {
-                VirtualTerminal::self()->activate(keysym - XKB_KEY_XF86Switch_VT_1 + 1);
+                LogindIntegration::self()->switchVirtualTerminal(keysym - XKB_KEY_XF86Switch_VT_1 + 1);
                 return true;
             }
         }

logind.cpp

@@ -362,4 +362,17 @@ void LogindIntegration::getSeat()
     );
 }
 
+void LogindIntegration::switchVirtualTerminal(quint32 vtNr)
+{
+    if (!m_connected || m_seatPath.isEmpty()) {
+        return;
+    }
+    QDBusMessage message = QDBusMessage::createMethodCall(s_login1Service,
+                                                          m_seatPath,
+                                                          QStringLiteral("org.freedesktop.login1.Seat"),
+                                                          QStringLiteral("SwitchTo"));
+    message.setArguments(QVariantList{vtNr});
+    m_bus.asyncCall(message);
+}
+
 } // namespace

logind.h

@@ -48,6 +48,7 @@ public:
     int vt() const {
         return m_vt;
     }
+    void switchVirtualTerminal(quint32 vtNr);
 
     void takeControl();
     void releaseControl();