gecko-dev/dom/presentation/PresentationService.h

79 строки
2.6 KiB
C++

/* -*- 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_PresentationService_h
#define mozilla_dom_PresentationService_h
#include "nsCOMPtr.h"
#include "nsIObserver.h"
#include "nsRefPtrHashtable.h"
#include "nsTObserverArray.h"
#include "PresentationSessionInfo.h"
class nsIPresentationSessionRequest;
class nsIURI;
namespace mozilla {
namespace dom {
class PresentationRespondingInfo;
class PresentationService final : public nsIPresentationService
, public nsIObserver
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
NS_DECL_NSIPRESENTATIONSERVICE
PresentationService();
bool Init();
already_AddRefed<PresentationSessionInfo>
GetSessionInfo(const nsAString& aSessionId)
{
RefPtr<PresentationSessionInfo> info;
return mSessionInfo.Get(aSessionId, getter_AddRefs(info)) ?
info.forget() : nullptr;
}
bool IsSessionAccessible(const nsAString& aSessionId,
base::ProcessId aProcessId);
private:
~PresentationService();
void HandleShutdown();
nsresult HandleDeviceChange();
nsresult HandleSessionRequest(nsIPresentationSessionRequest* aRequest);
void NotifyAvailableChange(bool aIsAvailable);
bool IsAppInstalled(nsIURI* aUri);
bool mIsAvailable;
nsTObserverArray<nsCOMPtr<nsIPresentationAvailabilityListener>> mAvailabilityListeners;
// Store the responding listener based on the window ID of the (in-process or
// OOP) receiver page.
// TODO Bug 1195605 - Support many-to-one session.
// So far responding listeners are registered but |notifySessionConnect| hasn't
// been called in any place until many-to-one session becomes supported.
nsRefPtrHashtable<nsUint64HashKey, nsIPresentationRespondingListener> mRespondingListeners;
nsRefPtrHashtable<nsStringHashKey, PresentationSessionInfo> mSessionInfo;
// Store the mapping between the window ID of the in-process page and the ID
// of the responding session. It's used for an in-process receiver page to
// retrieve the correspondent session ID. Besides, also keep the mapping
// between the responding session ID and the window ID to help look up the
// window ID.
nsClassHashtable<nsUint64HashKey, nsString> mRespondingSessionIds;
nsDataHashtable<nsStringHashKey, uint64_t> mRespondingWindowIds;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_PresentationService_h