refactor(new_editor/app): reorganize host structure and add smoke test

new_editor/app/Platform/Win32/EditorWindowManagerDetach.cpp

@@ -0,0 +1,68 @@
+#include "EditorWindowManager.h"
+
+#include "State/EditorContext.h"
+#include "EditorWindow.h"
+
+namespace XCEngine::UI::Editor::App {
+
+void EditorWindowManager::ProcessPendingDetachRequests() {
+    if (m_globalTabDragSession.active) {
+        return;
+    }
+
+    std::vector<EditorWindow*> windowsToProcess = {};
+    for (const std::unique_ptr<EditorWindow>& window : m_windows) {
+        if (window != nullptr && window->GetHwnd() != nullptr) {
+            windowsToProcess.push_back(window.get());
+        }
+    }
+
+    for (EditorWindow* window : windowsToProcess) {
+        if (window != nullptr) {
+            TryProcessDetachRequest(*window);
+        }
+    }
+}
+
+bool EditorWindowManager::TryProcessDetachRequest(EditorWindow& sourceWindow) {
+    const std::optional<EditorWindowPendingDetachRequest> pending =
+        sourceWindow.ConsumeDetachRequest();
+    if (!pending.has_value()) {
+        return false;
+    }
+
+    const std::string sourceWindowId(sourceWindow.GetWindowId());
+    UIEditorWindowWorkspaceController windowWorkspaceController =
+        BuildLiveWindowWorkspaceController(sourceWindowId);
+    const UIEditorWindowWorkspaceOperationResult result =
+        windowWorkspaceController.DetachPanelToNewWindow(
+            sourceWindowId,
+            pending->nodeId,
+            pending->panelId);
+    if (result.status != UIEditorWindowWorkspaceOperationStatus::Changed) {
+        LogRuntimeTrace("detach", "detach request rejected: " + result.message);
+        return false;
+    }
+
+    if (!SynchronizeWindowsFromController(
+            windowWorkspaceController,
+            result.targetWindowId,
+            pending->screenPoint)) {
+        LogRuntimeTrace("detach", "failed to synchronize detached window state");
+        return false;
+    }
+
+    if (EditorWindow* detachedWindow = FindWindow(result.targetWindowId);
+        detachedWindow != nullptr &&
+        detachedWindow->GetHwnd() != nullptr) {
+        SetForegroundWindow(detachedWindow->GetHwnd());
+    }
+
+    LogRuntimeTrace(
+        "detach",
+        "detached panel '" + pending->panelId + "' from window '" + sourceWindowId +
+            "' to window '" + result.targetWindowId + "'");
+    return true;
+}
+
+} // namespace XCEngine::UI::Editor::App