flutter_view.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_CLIENT_WRAPPER_INCLUDE_FLUTTER_FLUTTER_VIEW_H_
#define FLUTTER_SHELL_PLATFORM_WINDOWS_CLIENT_WRAPPER_INCLUDE_FLUTTER_FLUTTER_VIEW_H_
 
#include <flutter_windows.h>
 
namespace flutter {
 
// The unique identifier for a view.
typedef int64_t FlutterViewId;
 
// A view displaying Flutter content.
class FlutterView {
 public:
  explicit FlutterView(FlutterDesktopViewRef view) : view_(view) {}
 
  // Destroys this reference to the view. The underlying view is not destroyed.
  virtual ~FlutterView() = default;
 
  // Prevent copying.
  FlutterView(FlutterView const&) = delete;
  FlutterView& operator=(FlutterView const&) = delete;
 
  // Returns the backing HWND for the view.
  HWND GetNativeWindow() { return FlutterDesktopViewGetHWND(view_); }
 
  // Returns the DXGI adapter used for rendering or nullptr in case of error.
  IDXGIAdapter* GetGraphicsAdapter() {
    return FlutterDesktopViewGetGraphicsAdapter(view_);
  }
 
 private:
  // Handle for interacting with the C API's view.
  FlutterDesktopViewRef view_ = nullptr;
};
 
}  // namespace flutter
 
#endif  // FLUTTER_SHELL_PLATFORM_WINDOWS_CLIENT_WRAPPER_INCLUDE_FLUTTER_FLUTTER_VIEW_H_