Refactor editor window synchronization flow

editor/app/Windowing/Content/EditorWorkspaceWindowContentController.cpp

@@ -1,6 +1,7 @@
 #include "Windowing/Content/EditorWorkspaceWindowContentController.h"
 
 #include <XCEditor/Workspace/UIEditorDetachedWindowPolicy.h>
+#include <XCEditor/Workspace/UIEditorWorkspaceLayoutPersistence.h>
 
 namespace XCEngine::UI::Editor::App {
 
@@ -108,7 +109,10 @@ void EditorWorkspaceWindowContentController::SetViewportSurfacePresentationEnabl
 EditorWindowFrameTransferRequests EditorWorkspaceWindowContentController::UpdateAndAppend(
     const EditorWindowContentFrameContext& context,
     ::XCEngine::UI::UIDrawData& drawData) {
-    return m_frameOrchestrator.UpdateAndAppend(
+    const auto beforeSnapshot = BuildUIEditorWorkspaceLayoutSnapshot(
+        m_workspaceController.GetWorkspace(),
+        m_workspaceController.GetSession());
+    EditorWindowFrameTransferRequests transferRequests = m_frameOrchestrator.UpdateAndAppend(
         context.editorContext,
         m_workspaceController,
         m_shellRuntime,
@@ -120,6 +124,19 @@ EditorWindowFrameTransferRequests EditorWorkspaceWindowContentController::Update
         context.globalTabDragActive,
         context.useDetachedTitleBarTabStrip,
         drawData);
+    const auto afterSnapshot = BuildUIEditorWorkspaceLayoutSnapshot(
+        m_workspaceController.GetWorkspace(),
+        m_workspaceController.GetSession());
+    if (!AreUIEditorWorkspaceLayoutSnapshotsEquivalent(beforeSnapshot, afterSnapshot)) {
+        transferRequests.workspace.workspaceMutation = EditorWindowWorkspaceMutationRequest{
+            .windowState =
+                UIEditorWindowWorkspaceState{
+                    .workspace = m_workspaceController.GetWorkspace(),
+                    .session = m_workspaceController.GetSession(),
+                },
+        };
+    }
+    return transferRequests;
 }
 
 void EditorWorkspaceWindowContentController::RenderRequestedViewports(