/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_widget_ScreenManager_h

#define mozilla_widget_ScreenManager_h

#include "nsIScreenManager.h"

#include "mozilla/RefPtr.h"

#include "mozilla/UniquePtr.h"

#include "mozilla/widget/Screen.h"

#include "nsTArray.h"

namespace mozilla {

namespace dom {

class ContentParent;

class ScreenDetails;

}

}

namespace mozilla {

namespace widget {

class ScreenManager final : public nsIScreenManager

{

public:

  class Helper

  {

  public:

    virtual ~Helper() {}

  };

public:

  NS_DECL_ISUPPORTS

  NS_DECL_NSISCREENMANAGER

  static ScreenManager& GetSingleton();

  static already_AddRefed<ScreenManager> GetAddRefedSingleton();

  void SetHelper(UniquePtr<Helper> aHelper);

  void Refresh(nsTArray<RefPtr<Screen>>&& aScreens);

  void Refresh(nsTArray<mozilla::dom::ScreenDetails>&& aScreens);

  void CopyScreensToRemote(mozilla::dom::ContentParent* aContentParent);

private:

  ScreenManager();

  virtual ~ScreenManager();

  template<class Range>

  void CopyScreensToRemoteRange(Range aRemoteRange);

  void CopyScreensToAllRemotesIfIsParent();

  AutoTArray<RefPtr<Screen>, 4> mScreenList;

  UniquePtr<Helper> mHelper;

};

} // namespace widget

} // namespace mozilla

#endif // mozilla_widget_ScreenManager_h