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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// A simple wrapper around invalidation::InvalidationClient that
// handles all the startup/shutdown details and hookups.
#ifndef SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_
#define SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/non_thread_safe.h"
#include "google/cacheinvalidation/include/invalidation-listener.h"
#include "jingle/notifier/listener/push_client_observer.h"
#include "sync/internal_api/public/util/weak_handle.h"
#include "sync/notifier/chrome_system_resources.h"
#include "sync/notifier/invalidation_state_tracker.h"
#include "sync/notifier/notifications_disabled_reason.h"
#include "sync/notifier/object_id_payload_map.h"
#include "sync/notifier/state_writer.h"
namespace buzz {
class XmppTaskParentInterface;
} // namespace buzz
namespace notifier {
class PushClient;
} // namespace notifier
namespace syncer {
class RegistrationManager;
// ChromeInvalidationClient is not thread-safe and lives on the sync
// thread.
class ChromeInvalidationClient
: public invalidation::InvalidationListener,
public StateWriter,
public notifier::PushClientObserver,
public base::NonThreadSafe {
public:
class Listener {
public:
virtual ~Listener();
virtual void OnInvalidate(const ObjectIdPayloadMap& id_payloads) = 0;
virtual void OnNotificationsEnabled() = 0;
virtual void OnNotificationsDisabled(
NotificationsDisabledReason reason) = 0;
};
explicit ChromeInvalidationClient(
scoped_ptr<notifier::PushClient> push_client);
// Calls Stop().
virtual ~ChromeInvalidationClient();
// Does not take ownership of |listener| or |state_writer|.
// |invalidation_state_tracker| must be initialized.
void Start(
const std::string& client_id, const std::string& client_info,
const std::string& state,
const InvalidationVersionMap& initial_max_invalidation_versions,
const WeakHandle<InvalidationStateTracker>& invalidation_state_tracker,
Listener* listener);
void UpdateCredentials(const std::string& email, const std::string& token);
// Register the object IDs that we're interested in getting
// notifications for. May be called at any time.
void RegisterIds(const ObjectIdSet& ids);
// invalidation::InvalidationListener implementation.
virtual void Ready(
invalidation::InvalidationClient* client) OVERRIDE;
virtual void Invalidate(
invalidation::InvalidationClient* client,
const invalidation::Invalidation& invalidation,
const invalidation::AckHandle& ack_handle) OVERRIDE;
virtual void InvalidateUnknownVersion(
invalidation::InvalidationClient* client,
const invalidation::ObjectId& object_id,
const invalidation::AckHandle& ack_handle) OVERRIDE;
virtual void InvalidateAll(
invalidation::InvalidationClient* client,
const invalidation::AckHandle& ack_handle) OVERRIDE;
virtual void InformRegistrationStatus(
invalidation::InvalidationClient* client,
const invalidation::ObjectId& object_id,
invalidation::InvalidationListener::RegistrationState reg_state) OVERRIDE;
virtual void InformRegistrationFailure(
invalidation::InvalidationClient* client,
const invalidation::ObjectId& object_id,
bool is_transient,
const std::string& error_message) OVERRIDE;
virtual void ReissueRegistrations(
invalidation::InvalidationClient* client,
const std::string& prefix,
int prefix_length) OVERRIDE;
virtual void InformError(
invalidation::InvalidationClient* client,
const invalidation::ErrorInfo& error_info) OVERRIDE;
// StateWriter implementation.
virtual void WriteState(const std::string& state) OVERRIDE;
// notifier::PushClientObserver implementation.
virtual void OnNotificationsEnabled() OVERRIDE;
virtual void OnNotificationsDisabled(
notifier::NotificationsDisabledReason reason) OVERRIDE;
virtual void OnIncomingNotification(
const notifier::Notification& notification) OVERRIDE;
private:
friend class ChromeInvalidationClientTest;
void Stop();
NotificationsDisabledReason GetState() const;
void EmitStateChange();
void EmitInvalidation(const ObjectIdPayloadMap& id_payloads);
// Owned by |chrome_system_resources_|.
notifier::PushClient* const push_client_;
ChromeSystemResources chrome_system_resources_;
InvalidationVersionMap max_invalidation_versions_;
WeakHandle<InvalidationStateTracker> invalidation_state_tracker_;
Listener* listener_;
scoped_ptr<invalidation::InvalidationClient> invalidation_client_;
scoped_ptr<RegistrationManager> registration_manager_;
// Stored to pass to |registration_manager_| on start.
ObjectIdSet registered_ids_;
// The states of the ticl and the push client (with
// NO_NOTIFICATION_ERROR meaning notifications are enabled).
NotificationsDisabledReason ticl_state_;
NotificationsDisabledReason push_client_state_;
DISALLOW_COPY_AND_ASSIGN(ChromeInvalidationClient);
};
} // namespace syncer
#endif // SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_
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