android_native_window.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_ANDROID_SURFACE_ANDROID_NATIVE_WINDOW_H_
#define FLUTTER_SHELL_PLATFORM_ANDROID_SURFACE_ANDROID_NATIVE_WINDOW_H_
 
#include "flutter/fml/build_config.h"
 
#include "flutter/fml/macros.h"
#include "flutter/fml/memory/ref_counted.h"
#include "third_party/skia/include/core/SkSize.h"
 
#if FML_OS_ANDROID
#include <android/native_window.h>
#endif  // FML_OS_ANDROID
 
namespace flutter {
 
class AndroidNativeWindow
    : public fml::RefCountedThreadSafe<AndroidNativeWindow> {
 public:
#if FML_OS_ANDROID
  using Handle = ANativeWindow*;
#else   // FML_OS_ANDROID
  using Handle = std::nullptr_t;
#endif  // FML_OS_ANDROID
 
  bool IsValid() const;
 
  Handle handle() const;
 
  SkISize GetSize() const;
 
  /// Returns true when this AndroidNativeWindow is not backed by a real window
  /// (used for testing).
  bool IsFakeWindow() const { return is_fake_window_; }
 
 private:
  Handle window_;
  const bool is_fake_window_;
 
  /// Creates a native window with the given handle. Handle ownership is assumed
  /// by this instance of the native window.
  explicit AndroidNativeWindow(Handle window);
 
  explicit AndroidNativeWindow(Handle window, bool is_fake_window);
 
  ~AndroidNativeWindow();
 
  FML_FRIEND_MAKE_REF_COUNTED(AndroidNativeWindow);
  FML_FRIEND_REF_COUNTED_THREAD_SAFE(AndroidNativeWindow);
  FML_DISALLOW_COPY_AND_ASSIGN(AndroidNativeWindow);
};
 
}  // namespace flutter
 
#endif  // FLUTTER_SHELL_PLATFORM_ANDROID_SURFACE_ANDROID_NATIVE_WINDOW_H_