/* -*- 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_dom_ContentFrameMessageManager_h
#define mozilla_dom_ContentFrameMessageManager_h

#include "mozilla/DOMEventTargetHelper.h"
#include "mozilla/dom/MessageManagerGlobal.h"
#include "mozilla/dom/ResolveSystemBinding.h"
#include "nsContentUtils.h"

namespace mozilla {
namespace dom {

/**
 * Base class for implementing the WebIDL ContentFrameMessageManager class.
 */
class ContentFrameMessageManager : public DOMEventTargetHelper,
                                   public MessageManagerGlobal
{
public:
  using DOMEventTargetHelper::AddRef;
  using DOMEventTargetHelper::Release;

  bool DoResolve(JSContext* aCx, JS::Handle<JSObject*> aObj,
                 JS::Handle<jsid> aId,
                 JS::MutableHandle<JS::PropertyDescriptor> aDesc)
  {
    bool found;
    if (!SystemGlobalResolve(aCx, aObj, aId, &found)) {
      return false;
    }
    if (found) {
      FillPropertyDescriptor(aDesc, aObj, JS::UndefinedValue(), false);
    }
    return true;
  }
  static bool MayResolve(jsid aId)
  {
    return MayResolveAsSystemBindingName(aId);
  }
  void GetOwnPropertyNames(JSContext* aCx, JS::AutoIdVector& aNames,
                           bool aEnumerableOnly, mozilla::ErrorResult& aRv)
  {
    JS::Rooted<JSObject*> thisObj(aCx, GetWrapper());
    GetSystemBindingNames(aCx, thisObj, aNames, aEnumerableOnly, aRv);
  }

  virtual already_AddRefed<nsPIDOMWindowOuter> GetContent(ErrorResult& aError) = 0;
  virtual already_AddRefed<nsIDocShell> GetDocShell(ErrorResult& aError) = 0;
  virtual already_AddRefed<nsIEventTarget> GetTabEventTarget() = 0;

  nsFrameMessageManager* GetMessageManager()
  {
    return mMessageManager;
  }
  void DisconnectMessageManager()
  {
    mMessageManager->Disconnect();
    mMessageManager = nullptr;
  }

protected:
  explicit ContentFrameMessageManager(nsFrameMessageManager* aMessageManager)
    : MessageManagerGlobal(aMessageManager)
  {}
};

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_ContentFrameMessageManager_h