gecko-dev/dom/media/eme/MediaKeySystemAccessManager.h

84 строки
2.2 KiB
C++

/* 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_MediaKeySystemAccessManager_h
#define mozilla_dom_MediaKeySystemAccessManager_h
#include "mozilla/dom/MediaKeySystemAccess.h"
#include "nsIObserver.h"
#include "nsCycleCollectionParticipant.h"
#include "nsISupportsImpl.h"
#include "nsITimer.h"
namespace mozilla {
namespace dom {
class DetailedPromise;
class TestGMPVideoDecoder;
class MediaKeySystemAccessManager final : public nsIObserver
{
public:
explicit MediaKeySystemAccessManager(nsPIDOMWindowInner* aWindow);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(MediaKeySystemAccessManager, nsIObserver)
NS_DECL_NSIOBSERVER
void Request(DetailedPromise* aPromise,
const nsAString& aKeySystem,
const Sequence<MediaKeySystemConfiguration>& aConfig);
void Shutdown();
struct PendingRequest {
PendingRequest(DetailedPromise* aPromise,
const nsAString& aKeySystem,
const Sequence<MediaKeySystemConfiguration>& aConfig,
nsITimer* aTimer);
PendingRequest(const PendingRequest& aOther);
~PendingRequest();
void CancelTimer();
void RejectPromise(const nsCString& aReason);
RefPtr<DetailedPromise> mPromise;
const nsString mKeySystem;
const Sequence<MediaKeySystemConfiguration> mConfigs;
nsCOMPtr<nsITimer> mTimer;
};
private:
enum RequestType {
Initial,
Subsequent
};
void Request(DetailedPromise* aPromise,
const nsAString& aKeySystem,
const Sequence<MediaKeySystemConfiguration>& aConfig,
RequestType aType);
~MediaKeySystemAccessManager();
bool EnsureObserversAdded();
bool AwaitInstall(DetailedPromise* aPromise,
const nsAString& aKeySystem,
const Sequence<MediaKeySystemConfiguration>& aConfig);
void RetryRequest(PendingRequest& aRequest);
nsTArray<PendingRequest> mRequests;
nsCOMPtr<nsPIDOMWindowInner> mWindow;
bool mAddedObservers;
};
} // namespace dom
} // namespace mozilla
#endif