Mozart: Enhance tile app to test various sync behaviors.

examples/ui/tile/tile_view.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXAMPLES_UI_TILE_TILE_VIEW_H_
 #define EXAMPLES_UI_TILE_TILE_VIEW_H_
 
 #include <map>
 #include <memory>
+#include <vector>
 
 #include "mojo/services/ui/views/interfaces/view_provider.mojom.h"
 #include "mojo/ui/base_view.h"
 
 namespace examples {
 
+struct TileParams {
+  enum class VersionMode {
+    kAny,    // specify |kSceneVersionNone|
+    kExact,  // specify exact version
+  };
+  enum class CombinatorMode {
+    kMerge,          // use merge combinator
+    kPrune,          // use prune combinator
+    kFallbackFlash,  // use fallback combinator with red flash
+    kFallbackDim,    // use fallback combinator with old content dimmed
+  };
+  enum class OrientationMode {
+    kHorizontal,
+    kVertical,
+  };
+
+  TileParams();
+  ~TileParams();
+
+  VersionMode version_mode = VersionMode::kAny;
+  CombinatorMode combinator_mode = CombinatorMode::kPrune;
+  OrientationMode orientation_mode = OrientationMode::kHorizontal;
+
+  std::vector<std::string> view_urls;
+};
+
 class TileView : public mojo::ui::BaseView {
  public:
   TileView(mojo::ApplicationImpl* app_impl_,
            mojo::InterfaceRequest<mojo::ui::ViewOwner> view_owner_request,
-           const std::vector<std::string>& view_urls);
+           const TileParams& tile_params);
 
   ~TileView() override;
 
  private:
   struct ViewData {
     explicit ViewData(const std::string& url, uint32_t key);
     ~ViewData();
 
     const std::string url;
     const uint32_t key;
 
     mojo::RectF layout_bounds;
     mojo::ui::ViewPropertiesPtr view_properties;
     mojo::ui::ViewInfoPtr view_info;
     uint32_t scene_version = 1u;
   };
 
   // |BaseView|:
   void OnPropertiesChanged(uint32_t old_scene_version,
                            mojo::ui::ViewPropertiesPtr old_properties) override;
   void OnChildAttached(uint32_t child_key,
                        mojo::ui::ViewInfoPtr child_view_info) override;
   void OnChildUnavailable(uint32_t child_key) override;
 
   void ConnectViews();
   void UpdateScene();
 
   void OnFrameSubmitted();
 
-  std::vector<std::string> view_urls_;
+  TileParams params_;
   std::map<uint32_t, std::unique_ptr<ViewData>> views_;
 
   DISALLOW_COPY_AND_ASSIGN(TileView);
 };
 
 }  // namespace examples
 
 #endif  // EXAMPLES_UI_TILE_TILE_VIEW_H_