widget/ScreenManager.h
author Andreas Tolfsen <ato@sny.no>
Thu, 11 Oct 2018 16:40:36 +0000
changeset 443621 9ca2c179e63e292808918158eb778b16bf18e67f
parent 353219 9ad613f8801ae30eebd7717430bb1f5c36b5701e
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
bug 1492499: marionette: warn on TimedPromise bailing; r=automatedtester We often use TimedPromise to ensure Marionette does not unexpectedly block on a promise that, for whatever reason, does not resolve. It can however be useful to be alerted when they don't, as it quite often means there is an underlying problem. Depends on D8406 Differential Revision: https://phabricator.services.mozilla.com/D8407

/* -*- 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