Update version for new release 6.4.6

This matches upstream QWaylandXdgSurface behavior.

It also makes various activation magic e.g. KDBusService work.


(cherry picked from commit f599e829ad)

Co-authored-by: Kai Uwe Broulik <kde@privat.broulik.de>

CMakeLists.txt

@@ -4,7 +4,7 @@
 cmake_minimum_required(VERSION 3.16)
 
 project(layershellqt)
-set(PROJECT_VERSION "6.3.90")
+set(PROJECT_VERSION "6.4.6")
 set(PROJECT_VERSION_MAJOR 6)
 
 set(CMAKE_C_STANDARD 99)

src/qwaylandlayersurface.cpp

@@ -211,6 +211,10 @@ bool QWaylandLayerSurface::requestActivate()
         activation->activate(m_activationToken, window()->wlSurface());
         m_activationToken = {};
         return true;
+    } else if (const auto token = qEnvironmentVariable("XDG_ACTIVATION_TOKEN"); !token.isEmpty()) {
+        activation->activate(token, window()->wlSurface());
+        qunsetenv("XDG_ACTIVATION_TOKEN");
+        return true;
     } else {
         const auto focusWindow = QGuiApplication::focusWindow();
         const auto wlWindow = focusWindow ? static_cast<QtWaylandClient::QWaylandWindow *>(focusWindow->handle()) : window();