Refine editor action shell and add regression tests

editor/src/Actions/InspectorActionRouter.h

@@ -3,7 +3,9 @@
 #include "EditorActions.h"
 #include "Commands/ComponentCommands.h"
 #include "ComponentEditors/ComponentEditorRegistry.h"
+#include "Core/EditorEvents.h"
 #include "Core/IEditorContext.h"
+#include "UI/PopupState.h"
 #include "UI/UI.h"
 
 #include <string>
@@ -28,6 +30,28 @@ inline std::string BuildAddComponentMenuLabel(const IComponentEditor& editor, ::
     return label;
 }
 
+inline void HandleInspectorSelectionChanged(
+    IEditorContext& context,
+    const SelectionChangedEvent& event,
+    uint64_t& selectedEntityId,
+    UI::DeferredPopupState& addComponentPopup) {
+    if (context.GetUndoManager().HasPendingInteractiveChange()) {
+        context.GetUndoManager().FinalizeInteractiveChange();
+    }
+
+    selectedEntityId = event.primarySelection;
+    addComponentPopup.Clear();
+}
+
+inline bool DrawInspectorAddComponentButton(UI::DeferredPopupState& addComponentPopup, bool enabled = true) {
+    if (!DrawInspectorAction(MakeAddComponentButtonAction(enabled))) {
+        return false;
+    }
+
+    addComponentPopup.RequestOpen();
+    return true;
+}
+
 inline bool DrawInspectorAddComponentMenu(IEditorContext& context, ::XCEngine::Components::GameObject* gameObject) {
     bool drewAnyEntry = false;
 
@@ -49,6 +73,23 @@ inline bool DrawInspectorAddComponentMenu(IEditorContext& context, ::XCEngine::C
     return drewAnyEntry;
 }
 
+inline void DrawInspectorAddComponentPopup(
+    IEditorContext& context,
+    UI::DeferredPopupState& addComponentPopup,
+    ::XCEngine::Components::GameObject* gameObject) {
+    addComponentPopup.ConsumeOpenRequest("AddComponent");
+
+    if (!UI::BeginTitledPopup("AddComponent", "Components")) {
+        return;
+    }
+
+    if (!DrawInspectorAddComponentMenu(context, gameObject)) {
+        UI::DrawHintText("No registered component editors");
+    }
+
+    UI::EndTitledPopup();
+}
+
 inline bool DrawInspectorComponentMenu(
     IEditorContext& context,
     ::XCEngine::Components::Component* component,
@@ -60,6 +101,12 @@ inline bool DrawInspectorComponentMenu(
     });
 }
 
+inline void FinalizeInspectorInteractiveChangeIfIdle(IEditorContext& context) {
+    if (context.GetUndoManager().HasPendingInteractiveChange() && !ImGui::IsAnyItemActive()) {
+        context.GetUndoManager().FinalizeInteractiveChange();
+    }
+}
+
 } // namespace Actions
 } // namespace Editor
 } // namespace XCEngine