compositor: Configurable behavior when window to be focused conflicts with fullscreen (#12033)

Renames `misc:new_window_takes_over_fullscreen` into
`misc:on_focus_under_fullscreen` and implements the following behavior:

- By default, when a tiling window is being focused on a workspace where
  a fullscreen/maximized window exists, respect
  the `misc:on_focus_under_fullscreen` config variable.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/desktop/Subsurface.cpp b/src/desktop/Subsurface.cpp
index ba7340f1..cea6977a 100644
--- a/src/desktop/Subsurface.cpp
+++ b/src/desktop/Subsurface.cpp
@@ -1,6 +1,7 @@
 #include "Subsurface.hpp"
 #include "../events/Events.hpp"
-#include "../Compositor.hpp"
+#include "../desktop/state/FocusState.hpp"
+#include "../desktop/Window.hpp"
 #include "../config/ConfigValue.hpp"
 #include "../protocols/core/Compositor.hpp"
 #include "../protocols/core/Subcompositor.hpp"
@@ -163,7 +164,7 @@ void CSubsurface::onMap() {
 void CSubsurface::onUnmap() {
     damageLastArea();
 
-    if (m_wlSurface->resource() == g_pCompositor->m_lastFocus)
+    if (m_wlSurface->resource() == Desktop::focusState()->surface())
         g_pInputManager->releaseAllMouseButtons();
 
     g_pInputManager->simulateMouseMovement();