dom/presentation/Presentation.h
author David Major <dmajor@mozilla.com>
Wed, 20 Dec 2017 09:07:46 -0500
changeset 448763 e9cfe039a796e2963a6d3e7d2a161b02cdbadcac
parent 439273 cb123c84818a3c491fb9d63f00891d23f515cf6f
child 505383 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1425906: Rename LINK to LINKER throughout the build system. r=glandium Windows linkers give special meaning to getenv("LINK"), which makes `export LINK=...` in mozconfigs do unexpected things.

/* -*- 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_Presentation_h
#define mozilla_dom_Presentation_h

#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsISupportsImpl.h"
#include "nsWrapperCache.h"

class nsPIDOMWindowInner;

namespace mozilla {
namespace dom {

class Promise;
class PresentationReceiver;
class PresentationRequest;

class Presentation final : public nsISupports
                         , public nsWrapperCache
{
public:
  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(Presentation)

  static already_AddRefed<Presentation> Create(nsPIDOMWindowInner* aWindow);

  virtual JSObject* WrapObject(JSContext* aCx,
                               JS::Handle<JSObject*> aGivenProto) override;

  nsPIDOMWindowInner* GetParentObject() const
  {
    return mWindow;
  }

  // WebIDL (public APIs)
  void SetDefaultRequest(PresentationRequest* aRequest);

  already_AddRefed<PresentationRequest> GetDefaultRequest() const;

  already_AddRefed<PresentationReceiver> GetReceiver();

  // For bookkeeping unsettled start session request
  void SetStartSessionUnsettled(bool aIsUnsettled);
  bool IsStartSessionUnsettled() const;

private:
  explicit Presentation(nsPIDOMWindowInner* aWindow);

  virtual ~Presentation();

  bool HasReceiverSupport() const;

  bool IsInPresentedContent() const;

  RefPtr<PresentationRequest> mDefaultRequest;
  RefPtr<PresentationReceiver> mReceiver;
  nsCOMPtr<nsPIDOMWindowInner> mWindow;
  bool mStartSessionUnsettled = false;
};

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_Presentation_h