view_modifier.h

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// Copyright 2013 The Flutter 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 FLUTTER_SHELL_PLATFORM_WINDOWS_TESTING_VIEW_MODIFIER_H_
#define FLUTTER_SHELL_PLATFORM_WINDOWS_TESTING_VIEW_MODIFIER_H_
 
#include "flutter/fml/macros.h"
#include "flutter/shell/platform/windows/egl/window_surface.h"
#include "flutter/shell/platform/windows/flutter_windows_view.h"
 
namespace flutter {
 
// A test utility class providing the ability to access and alter various
// private fields in a |FlutterWindowsView| instance.
class ViewModifier {
 public:
  explicit ViewModifier(FlutterWindowsView* view) : view_(view) {}
 
  // Override the EGL surface used by the view.
  //
  // Modifications are to the view, and will last for the lifetime of the
  // view unless overwritten again.
  void SetSurface(std::unique_ptr<egl::WindowSurface> surface) {
    view_->surface_ = std::move(surface);
  }
 
 private:
  FlutterWindowsView* view_;
 
  FML_DISALLOW_COPY_AND_ASSIGN(ViewModifier);
};
 
}  // namespace flutter
 
#endif  // FLUTTER_SHELL_PLATFORM_WINDOWS_TESTING_VIEW_MODIFIER_H_