dom/media/eme/MediaKeySystemAccess.h
author Gerald Squelart <gsquelart@mozilla.com>
Fri, 22 Apr 2016 13:42:11 +1000
changeset 332308 826d477a117b93d745f8dddb2ca3e1a3f2bc77eb
parent 318762 e22b3043887ed36bf2c634c2924a7c8d39d226b1
child 360264 9d2383c4a89ab8e93874bb0c2285516cc9040aee
permissions -rw-r--r--
Bug 848994 - p3. Check MediaKeySystem requests - r=cpearce Media Key System access requests are now recorded with their success/failure, as well as accompanying issues of importance. In this bug we focus on the Widevine-with-no-WMF case. MozReview-Commit-ID: ElBN6cXKwAW

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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_MediaKeySystemAccess_h
#define mozilla_dom_MediaKeySystemAccess_h

#include "mozilla/Attributes.h"
#include "mozilla/ErrorResult.h"
#include "nsCycleCollectionParticipant.h"
#include "nsWrapperCache.h"

#include "mozilla/dom/Promise.h"
#include "mozilla/dom/MediaKeySystemAccessBinding.h"
#include "mozilla/dom/MediaKeysRequestStatusBinding.h"

#include "js/TypeDecls.h"

namespace mozilla {

class DecoderDoctorDiagnostics;

namespace dom {

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

public:
  explicit MediaKeySystemAccess(nsPIDOMWindowInner* aParent,
                                const nsAString& aKeySystem,
                                const nsAString& aCDMVersion,
                                const MediaKeySystemConfiguration& aConfig);

protected:
  ~MediaKeySystemAccess();

public:
  nsPIDOMWindowInner* GetParentObject() const;

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

  void GetKeySystem(nsString& aRetVal) const;

  void GetConfiguration(MediaKeySystemConfiguration& aConfig);

  already_AddRefed<Promise> CreateMediaKeys(ErrorResult& aRv);



  static MediaKeySystemStatus GetKeySystemStatus(const nsAString& aKeySystem,
                                                 int32_t aMinCdmVersion,
                                                 nsACString& aOutExceptionMessage,
                                                 nsACString& aOutCdmVersion);

  static bool IsSupported(const nsAString& aKeySystem,
                          const Sequence<MediaKeySystemConfiguration>& aConfigs,
                          DecoderDoctorDiagnostics* aDiagnostics);

  static void NotifyObservers(nsPIDOMWindowInner* aWindow,
                              const nsAString& aKeySystem,
                              MediaKeySystemStatus aStatus);

  static bool IsGMPPresentOnDisk(const nsAString& aKeySystem,
                                 const nsACString& aVersion,
                                 nsACString& aOutMessage);

  static bool GetSupportedConfig(const nsAString& aKeySystem,
                                 const Sequence<MediaKeySystemConfiguration>& aConfigs,
                                 MediaKeySystemConfiguration& aOutConfig,
                                 DecoderDoctorDiagnostics* aDiagnostics);

private:
  nsCOMPtr<nsPIDOMWindowInner> mParent;
  const nsString mKeySystem;
  const nsString mCDMVersion;
  const MediaKeySystemConfiguration mConfig;
};

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_MediaKeySystemAccess_h