gecko-dev/dom/push/PushNotifier.h

90 строки
2.7 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_PushNotifier_h
#define mozilla_dom_PushNotifier_h
#include "nsIPushNotifier.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIPrincipal.h"
#include "nsString.h"
#include "nsTArray.h"
#include "mozilla/Maybe.h"
#define PUSHNOTIFIER_CONTRACTID \
"@mozilla.org/push/Notifier;1"
namespace mozilla {
namespace dom {
/**
* `PushNotifier` implements the `nsIPushNotifier` interface. This service
* forwards incoming push messages to service workers running in the content
* process, and emits XPCOM observer notifications for system subscriptions.
*
* The XPCOM service can only be used from the main process. Callers running
* in the content process should use
* `ServiceWorkerManager::SendPush{SubscriptionChange}Event` directly.
*/
class PushNotifier final : public nsIPushNotifier
{
public:
PushNotifier();
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(PushNotifier, nsIPushNotifier)
NS_DECL_NSIPUSHNOTIFIER
nsresult NotifyPush(const nsACString& aScope, nsIPrincipal* aPrincipal,
Maybe<nsTArray<uint8_t>> aData);
nsresult NotifyPushWorkers(const nsACString& aScope,
nsIPrincipal* aPrincipal,
Maybe<nsTArray<uint8_t>> aData);
nsresult NotifySubscriptionChangeWorkers(const nsACString& aScope,
nsIPrincipal* aPrincipal);
protected:
virtual ~PushNotifier();
private:
nsresult NotifyPushObservers(const nsACString& aScope,
Maybe<nsTArray<uint8_t>> aData);
nsresult NotifySubscriptionChangeObservers(const nsACString& aScope);
bool ShouldNotifyObservers(nsIPrincipal* aPrincipal);
bool ShouldNotifyWorkers(nsIPrincipal* aPrincipal);
};
/**
* `PushMessage` implements the `nsIPushMessage` interface, similar to
* the `PushMessageData` WebIDL interface. Instances of this class are
* passed as the subject of `push-message` observer notifications for
* system subscriptions.
*/
class PushMessage final : public nsIPushMessage
{
public:
explicit PushMessage(const nsTArray<uint8_t>& aData);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(PushMessage,
nsIPushMessage)
NS_DECL_NSIPUSHMESSAGE
protected:
virtual ~PushMessage();
private:
nsresult EnsureDecodedText();
nsTArray<uint8_t> mData;
nsString mDecodedText;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_PushNotifier_h