Reuse panel frame composition in native XCUI shell

new_editor/src/panels/XCUIDemoPanel.h

@@ -7,11 +7,47 @@
 #include "XCUIBackend/XCUIPanelCanvasHost.h"
 #include "XCUIBackend/XCUIDemoRuntime.h"
 
+#include <cstdint>
 #include <memory>
+#include <string>
 
 namespace XCEngine {
 namespace NewEditor {
 
+struct XCUIDemoPanelFrameComposeOptions {
+    float canvasHeight = 0.0f;
+    float canvasTopInset = 0.0f;
+    bool hostedPreviewEnabled = true;
+    bool showCanvasHud = true;
+    bool showDebugRects = true;
+    std::uint64_t timestampNanoseconds = 0;
+    const char* canvasChildId = "XCUIDemoCanvasHost";
+    const ::XCEngine::Editor::XCUIBackend::XCUIInputBridgeFrameSnapshot* inputSnapshot = nullptr;
+    bool useDefaultPlaceholder = true;
+    const char* placeholderTitle = nullptr;
+    const char* placeholderSubtitle = nullptr;
+    bool drawPreviewFrame = true;
+    const char* badgeTitle = nullptr;
+    const char* badgeSubtitle = nullptr;
+};
+
+struct XCUIDemoPanelFrameComposition {
+    ::XCEngine::Editor::XCUIBackend::XCUIPanelCanvasSession canvasSession = {};
+    ::XCEngine::Editor::XCUIBackend::XCUIInputBridgeFrameSnapshot inputSnapshot = {};
+    ::XCEngine::Editor::XCUIBackend::XCUIInputBridgeFrameDelta inputDelta = {};
+    ::XCEngine::Editor::XCUIBackend::XCUIDemoInputState input = {};
+    const ::XCEngine::Editor::XCUIBackend::XCUIDemoFrameResult* frame = nullptr;
+    ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewStats previewStats = {};
+    ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewSurfaceDescriptor hostedSurfaceDescriptor = {};
+    ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewSurfaceImage hostedSurfaceImage = {};
+    bool hostedPreviewEnabled = false;
+    bool nativeHostedPreview = false;
+    bool hasHostedSurfaceDescriptor = false;
+    bool showHostedSurfaceImage = false;
+    std::string previewPathLabel = {};
+    std::string previewStateLabel = {};
+};
+
 class XCUIDemoPanel : public Panel {
 public:
     explicit XCUIDemoPanel(
@@ -23,6 +59,8 @@ public:
     ~XCUIDemoPanel() override = default;
 
     void Render() override;
+    const XCUIDemoPanelFrameComposition& ComposeFrame(
+        const XCUIDemoPanelFrameComposeOptions& options = XCUIDemoPanelFrameComposeOptions());
     void SetHostedPreviewEnabled(bool enabled);
     void SetHostedPreviewPresenter(
         std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIHostedPreviewPresenter> previewPresenter);
@@ -32,6 +70,8 @@ public:
     bool IsUsingNativeHostedPreview() const;
     const ::XCEngine::Editor::XCUIBackend::XCUIDemoFrameResult& GetFrameResult() const;
     const ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewStats& GetLastPreviewStats() const;
+    const XCUIDemoPanelFrameComposition& GetLastFrameComposition() const;
+    bool GetLastReloadSucceeded() const { return m_lastReloadSucceeded; }
 
 private:
     bool m_lastReloadSucceeded = false;
@@ -44,6 +84,7 @@ private:
     std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIHostedPreviewPresenter> m_previewPresenter;
     std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIPanelCanvasHost> m_canvasHost;
     ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewStats m_lastPreviewStats = {};
+    XCUIDemoPanelFrameComposition m_lastFrameComposition = {};
 };
 
 } // namespace NewEditor