blob: 01a614a887a24c61851d21967439d7fb94e4b931 [file] [log] [blame]
// Copyright 2014 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.
#include "base/time/time.h"
#include "sync/base/sync_export.h"
#include "sync/internal_api/public/base/model_type.h"
namespace syncer {
struct SyncProtocolError;
struct SyncCycleEvent;
class ProtocolEvent;
class SYNC_EXPORT SyncEngineEventListener {
// Generated at various points during the sync cycle.
virtual void OnSyncCycleEvent(const SyncCycleEvent& event) = 0;
// This event is sent when we receive an actionable error. It is up to
// the listeners to figure out the action to take using the error sent.
virtual void OnActionableError(const SyncProtocolError& error) = 0;
// This event is sent when scheduler decides to wait before next request
// either because it gets throttled by server or because it backs off after
// request failure. Retry time is passed in retry_time field of event.
virtual void OnRetryTimeChanged(base::Time retry_time) = 0;
// This event is sent when types are throttled or unthrottled.
virtual void OnThrottledTypesChanged(ModelTypeSet throttled_types) = 0;
// This event is sent when the server requests a migration.
virtual void OnMigrationRequested(ModelTypeSet migration_types) = 0;
// Emits events when sync communicates with the server.
virtual void OnProtocolEvent(const ProtocolEvent& event) = 0;
virtual ~SyncEngineEventListener();
} // namespace syncer