Refactor editor windowing boundaries

editor/app/Platform/Win32/Windowing/EditorWindow.cpp

@@ -15,6 +15,7 @@
 #include <XCEngine/UI/Types.h>
 #include <cassert>
 #include <algorithm>
+#include <optional>
 #include <sstream>
 #include <windowsx.h>
 #include <XCEngine/UI/DrawData.h>
@@ -55,12 +56,7 @@ UINT QueryWindowDpi(HWND hwnd) {
 }
 
 bool ResolveVerboseRuntimeTraceEnabled() {
-    wchar_t buffer[8] = {};
-    const DWORD length = GetEnvironmentVariableW(
-        L"XCUIEDITOR_VERBOSE_TRACE",
-        buffer,
-        static_cast<DWORD>(std::size(buffer)));
-    return length > 0u && buffer[0] != L'0';
+    return IsEditorWindowVerboseRuntimeTraceEnabled();
 }
 
 void LogRuntimeTrace(std::string_view channel, std::string_view message) {
@@ -164,6 +160,14 @@ const UIEditorWorkspaceController& EditorWindow::GetWorkspaceController() const
     return *workspaceController;
 }
 
+EditorWindowDockHostBinding* EditorWindow::TryGetDockHostBinding() {
+    return m_runtime->TryGetDockHostBinding();
+}
+
+const EditorWindowDockHostBinding* EditorWindow::TryGetDockHostBinding() const {
+    return m_runtime->TryGetDockHostBinding();
+}
+
 void EditorWindow::AttachHwnd(HWND hwnd) {
     m_session->AttachHwnd(hwnd);
 }
@@ -474,6 +478,18 @@ using ::XCEngine::UI::UIRect;
 
 namespace {
 
+std::optional<EditorWindowScreenPoint> QueryCursorScreenPoint() {
+    POINT screenPoint = {};
+    if (!GetCursorPos(&screenPoint)) {
+        return std::nullopt;
+    }
+
+    return EditorWindowScreenPoint{
+        .x = screenPoint.x,
+        .y = screenPoint.y,
+    };
+}
+
 std::uint8_t ButtonMask(UIPointerButton button) {
     switch (button) {
     case UIPointerButton::Left: return 1u << 0u;
@@ -646,6 +662,7 @@ EditorWindowFrameTransferRequests EditorWindow::RenderRuntimeFrame(
                 .editorContext = editorContext,
                 .bounds = workspaceBounds,
                 .inputEvents = frameEvents,
+                .cursorScreenPoint = QueryCursorScreenPoint(),
                 .captureStatusText = m_runtime->BuildCaptureStatusText(),
                 .primary = m_session->IsPrimary(),
                 .globalTabDragActive = globalTabDragActive,