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, 4 insertions, 3 deletions

diff --git a/src/managers/SeatManager.cpp b/src/managers/SeatManager.cpp
index 3b3d8b04..6d49c97e 100644
--- a/src/managers/SeatManager.cpp
+++ b/src/managers/SeatManager.cpp
@@ -6,6 +6,7 @@
 #include "../protocols/PrimarySelection.hpp"
 #include "../protocols/core/Compositor.hpp"
 #include "../Compositor.hpp"
+#include "../desktop/state/FocusState.hpp"
 #include "../devices/IKeyboard.hpp"
 #include "../desktop/LayerSurface.hpp"
 #include "../managers/input/InputManager.hpp"
@@ -659,7 +660,7 @@ void CSeatManager::setGrab(SP<CSeatGrab> grab) {
 
             // If this was a popup grab, focus its parent window to maintain context
             if (validMapped(parentWindow)) {
-                g_pCompositor->focusWindow(parentWindow);
+                Desktop::focusState()->rawWindowFocus(parentWindow);
                 Debug::log(LOG, "[seatmgr] Refocused popup parent window {} (follow_mouse={})", parentWindow->m_title, *PFOLLOWMOUSE);
             } else
                 g_pInputManager->refocusLastWindow(PMONITOR);
@@ -689,10 +690,10 @@ void CSeatManager::setGrab(SP<CSeatGrab> grab) {
             refocus = layer->m_interactivity == ZWLR_LAYER_SURFACE_V1_KEYBOARD_INTERACTIVITY_NONE;
 
         if (refocus) {
-            auto candidate = g_pCompositor->m_lastWindow.lock();
+            auto candidate = Desktop::focusState()->window();
 
             if (candidate)
-                g_pCompositor->focusWindow(candidate);
+                Desktop::focusState()->rawWindowFocus(candidate);
         }
 
         if (oldGrab->m_onEnd)