layouts: fix crash on missed relayout updates (#13444)

3 files changed, 11 insertions, 7 deletions

diff --git a/src/layout/LayoutManager.cpp b/src/layout/LayoutManager.cpp
index bcbf8438..56fa508d 100644
--- a/src/layout/LayoutManager.cpp
+++ b/src/layout/LayoutManager.cpp
@@ -11,13 +11,7 @@
 
 using namespace Layout;
 
-CLayoutManager::CLayoutManager() {
-    static auto P = Event::bus()->m_events.monitor.layoutChanged.listen([] {
-        for (const auto& ws : g_pCompositor->getWorkspaces()) {
-            ws->m_space->recheckWorkArea();
-        }
-    });
-}
+CLayoutManager::CLayoutManager() = default;
 
 void CLayoutManager::newTarget(SP<ITarget> target, SP<CSpace> space) {
     // on a new target: remember desired pos for float, if available
diff --git a/src/layout/space/Space.cpp b/src/layout/space/Space.cpp
index 742c398a..33e5bb8c 100644
--- a/src/layout/space/Space.cpp
+++ b/src/layout/space/Space.cpp
@@ -6,6 +6,7 @@
 #include "../../debug/log/Logger.hpp"
 #include "../../desktop/Workspace.hpp"
 #include "../../config/ConfigManager.hpp"
+#include "../../event/EventBus.hpp"
 
 using namespace Layout;
 
@@ -17,6 +18,12 @@ SP<CSpace> CSpace::create(PHLWORKSPACE w) {
 
 CSpace::CSpace(PHLWORKSPACE parent) : m_parent(parent) {
     recheckWorkArea();
+
+    // NOLINTNEXTLINE
+    m_geomUpdateCallback = Event::bus()->m_events.monitor.layoutChanged.listen([this] {
+        recheckWorkArea();
+        m_algorithm->recalculate();
+    });
 }
 
 void CSpace::add(SP<ITarget> t) {
diff --git a/src/layout/space/Space.hpp b/src/layout/space/Space.hpp
index 4229e99d..ff3d18e6 100644
--- a/src/layout/space/Space.hpp
+++ b/src/layout/space/Space.hpp
@@ -63,5 +63,8 @@ namespace Layout {
 
         // work area is in global coords
         CBox m_workArea, m_floatingWorkArea;
+
+        // for recalc
+        CHyprSignalListener m_geomUpdateCallback;
     };
 };
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