text: // Copyright 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_INTERNAL_API_JS_SYNC_MANAGER_OBSERVER_H_
  #define SYNC_INTERNAL_API_JS_SYNC_MANAGER_OBSERVER_H_
  
  #include <string>
  
  #include "base/compiler_specific.h"
  #include "base/macros.h"
  #include "sync/base/sync_export.h"
  #include "sync/internal_api/public/sync_manager.h"
  #include "sync/internal_api/public/util/weak_handle.h"
  #include "sync/protocol/sync_protocol_error.h"
  
  namespace tracked_objects {
  class Location;
  }  // namespace tracked_objects
  
  namespace syncer {
  
  class JsEventDetails;
  class JsEventHandler;
  
  // Routes SyncManager events to a JsEventHandler.
  class SYNC_EXPORT JsSyncManagerObserver : public SyncManager::Observer {
   public:
    JsSyncManagerObserver();
    ~JsSyncManagerObserver() override;
  
    void SetJsEventHandler(const WeakHandle<JsEventHandler>& event_handler);
  
    // SyncManager::Observer implementation.
    void OnSyncCycleCompleted(
        const sessions::SyncSessionSnapshot& snapshot) override;
    void OnConnectionStatusChange(ConnectionStatus status) override;
    void OnInitializationComplete(
        const WeakHandle<JsBackend>& js_backend,
        const WeakHandle<DataTypeDebugInfoListener>& debug_info_listener,
        bool success,
        syncer::ModelTypeSet restored_types) override;
    void OnActionableError(const SyncProtocolError& sync_protocol_error) override;
    void OnProtocolEvent(const ProtocolEvent& event) override;
    void OnMigrationRequested(syncer::ModelTypeSet types) override;
  
   private:
    void HandleJsEvent(const tracked_objects::Location& from_here,
                      const std::string& name, const JsEventDetails& details);
  
    WeakHandle<JsEventHandler> event_handler_;
  
    DISALLOW_COPY_AND_ASSIGN(JsSyncManagerObserver);
  };
  
  }  // namespace syncer
  
  #endif  // SYNC_INTERNAL_API_JS_SYNC_MANAGER_OBSERVER_H_
  