Add workspace panel overlay routing

editor/app/Features/Inspector/InspectorPanel.cpp

@@ -792,6 +792,9 @@ void InspectorPanel::Update(
 
     RefreshPresentation(context, subjectChanged);
     ApplyColorPickerToolValue(context);
+    RebuildScrollableLayout();
+
+    const std::vector<UIRect> popupBounds = CollectInteractiveOverlayBounds();
 
     const std::vector<UIInputEvent> filteredEvents =
         BuildUIEditorPanelInputEvents(
@@ -812,7 +815,8 @@ void InspectorPanel::Update(
                     HasActivePointerCapture()
             },
             dispatchEntry.focusGained,
-            dispatchEntry.focusLost);
+            dispatchEntry.focusLost,
+            popupBounds.empty() ? nullptr : &popupBounds);
     TryClaimHostedPanelCommandFocus(
         m_commandFocusService,
         EditorActionRoute::Inspector,
@@ -820,7 +824,6 @@ void InspectorPanel::Update(
         m_bounds,
         dispatchEntry.allowInteraction);
 
-    RebuildScrollableLayout();
     const UIRect scrollViewportBounds = BuildScrollViewportBounds();
     if (scrollViewportBounds.width > 0.0f && scrollViewportBounds.height > 0.0f) {
         m_scrollInteractionState.scrollViewState.focused =
@@ -951,7 +954,8 @@ void InspectorPanel::Append(UIDrawList& drawList) const {
             ::XCEngine::UI::Editor::GetUIEditorFixedPropertyGridMetrics(),
             {},
             {},
-            m_textMeasurer);
+            m_textMeasurer,
+            false);
     }
 
     if (ShouldShowAddComponentButton()) {
@@ -985,6 +989,71 @@ void InspectorPanel::Append(UIDrawList& drawList) const {
     drawList.PopClipRect();
 }
 
+void InspectorPanel::AppendOverlay(UIDrawList& drawList) const {
+    if (!m_visible) {
+        return;
+    }
+
+    Widgets::UIEditorMenuPopupLayout popupLayout = {};
+    Widgets::UIEditorMenuPopupState popupState = {};
+    std::vector<Widgets::UIEditorMenuPopupItem> popupItems = {};
+    if (!BuildPropertyGridPopupRuntime(popupLayout, popupState, popupItems)) {
+        return;
+    }
+
+    const Widgets::UIEditorMenuPopupMetrics& popupMetrics =
+        ResolveUIEditorMenuPopupMetrics();
+    const Widgets::UIEditorMenuPopupPalette& popupPalette =
+        ResolveUIEditorMenuPopupPalette();
+    Widgets::AppendUIEditorMenuPopupBackground(
+        drawList,
+        popupLayout,
+        popupItems,
+        popupState,
+        popupPalette,
+        popupMetrics);
+    Widgets::AppendUIEditorMenuPopupForeground(
+        drawList,
+        popupLayout,
+        popupItems,
+        popupState,
+        popupPalette,
+        popupMetrics);
+}
+
+std::vector<UIRect> InspectorPanel::CollectInteractiveOverlayBounds() const {
+    Widgets::UIEditorMenuPopupLayout popupLayout = {};
+    Widgets::UIEditorMenuPopupState popupState = {};
+    std::vector<Widgets::UIEditorMenuPopupItem> popupItems = {};
+    if (!BuildPropertyGridPopupRuntime(popupLayout, popupState, popupItems) ||
+        popupLayout.popupRect.width <= 0.0f ||
+        popupLayout.popupRect.height <= 0.0f) {
+        return {};
+    }
+
+    return { popupLayout.popupRect };
+}
+
+bool InspectorPanel::BuildPropertyGridPopupRuntime(
+    Widgets::UIEditorMenuPopupLayout& popupLayout,
+    Widgets::UIEditorMenuPopupState& popupState,
+    std::vector<Widgets::UIEditorMenuPopupItem>& popupItems) const {
+    if (!m_visible ||
+        m_gridFrame.layout.bounds.width <= 0.0f ||
+        m_gridFrame.layout.bounds.height <= 0.0f) {
+        return false;
+    }
+
+    return Widgets::BuildUIEditorPropertyGridPopupRuntime(
+        m_gridFrame.layout,
+        m_presentation.sections,
+        m_interactionState.propertyGridState,
+        popupLayout,
+        popupState,
+        popupItems,
+        ResolveUIEditorMenuPopupMetrics());
+}
+
 UIEditorHostCommandEvaluationResult InspectorPanel::EvaluateEditCommand(
     std::string_view commandId) const {
     const InspectorPresentationComponentBinding* binding =