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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.
#ifndef SYNC_NOTIFIER_INVALIDATION_HANDLER_H_
#define SYNC_NOTIFIER_INVALIDATION_HANDLER_H_
#include "sync/notifier/invalidator_state.h"
#include "sync/notifier/object_id_invalidation_map.h"
namespace syncer {
enum IncomingInvalidationSource {
// The server is notifying us that one or more objects have stale data.
REMOTE_INVALIDATION,
// Something locally is requesting an optimistic refresh of its data.
LOCAL_INVALIDATION,
};
class InvalidationHandler {
public:
// Called when the invalidator state changes.
virtual void OnInvalidatorStateChange(InvalidatorState state) = 0;
// Called when a invalidation is received. The per-id states are in
// |id_state_map| and the source is in |source|. Note that this may be
// called regardless of the current invalidator state.
virtual void OnIncomingInvalidation(
const ObjectIdInvalidationMap& invalidation_map,
IncomingInvalidationSource source) = 0;
protected:
virtual ~InvalidationHandler() {}
};
} // namespace syncer
#endif // SYNC_NOTIFIER_INVALIDATION_HANDLER_H_
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