关键节点

editor/app/State/EditorCommandFocusService.h

@@ -0,0 +1,85 @@
+#pragma once
+
+#include "State/EditorSession.h"
+
+#include <XCEngine/UI/Types.h>
+
+#include <vector>
+
+namespace XCEngine::UI::Editor::App {
+
+class EditorCommandFocusService {
+public:
+    EditorActionRoute GetExplicitRoute() const {
+        return m_explicitRoute;
+    }
+
+    bool HasExplicitRoute() const {
+        return m_explicitRoute != EditorActionRoute::None;
+    }
+
+    EditorActionRoute ResolveRoute(
+        EditorActionRoute fallbackRoute = EditorActionRoute::None) const {
+        return HasExplicitRoute() ? m_explicitRoute : fallbackRoute;
+    }
+
+    bool ClaimFocus(EditorActionRoute route) {
+        if (route == EditorActionRoute::None) {
+            return false;
+        }
+
+        const bool changed = m_explicitRoute != route;
+        m_explicitRoute = route;
+        return changed;
+    }
+
+    void ClearFocus(EditorActionRoute route = EditorActionRoute::None) {
+        if (route == EditorActionRoute::None || m_explicitRoute == route) {
+            m_explicitRoute = EditorActionRoute::None;
+        }
+    }
+
+private:
+    EditorActionRoute m_explicitRoute = EditorActionRoute::None;
+};
+
+inline bool ShouldClaimHostedPanelCommandFocus(
+    const std::vector<::XCEngine::UI::UIInputEvent>& inputEvents,
+    const ::XCEngine::UI::UIRect& bounds,
+    bool allowInteraction) {
+    for (const ::XCEngine::UI::UIInputEvent& event : inputEvents) {
+        if (event.type == ::XCEngine::UI::UIInputEventType::FocusGained) {
+            return true;
+        }
+
+        if (!allowInteraction ||
+            event.type != ::XCEngine::UI::UIInputEventType::PointerButtonDown) {
+            continue;
+        }
+
+        if (event.position.x >= bounds.x &&
+            event.position.x <= bounds.x + bounds.width &&
+            event.position.y >= bounds.y &&
+            event.position.y <= bounds.y + bounds.height) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+inline bool TryClaimHostedPanelCommandFocus(
+    EditorCommandFocusService* service,
+    EditorActionRoute route,
+    const std::vector<::XCEngine::UI::UIInputEvent>& inputEvents,
+    const ::XCEngine::UI::UIRect& bounds,
+    bool allowInteraction) {
+    return service != nullptr &&
+        ShouldClaimHostedPanelCommandFocus(
+            inputEvents,
+            bounds,
+            allowInteraction) &&
+        service->ClaimFocus(route);
+}
+
+} // namespace XCEngine::UI::Editor::App