Add OnSyncEnabled/OnWriteEnabled notification handling to operation runner

webkit/fileapi/syncable/local_file_sync_context.h

 // 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 WEBKIT_FILEAPI_SYNCABLE_LOCAL_FILE_SYNC_CONTEXT_H_
 #define WEBKIT_FILEAPI_SYNCABLE_LOCAL_FILE_SYNC_CONTEXT_H_
 
 #include <deque>
 #include <map>
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/fileapi/syncable/file_change.h"
+#include "webkit/fileapi/syncable/local_file_sync_status.h"
 #include "webkit/fileapi/syncable/sync_status_code.h"
 #include "webkit/storage/webkit_storage_export.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace fileapi {
 
+class FileChange;
 class FileSystemContext;
 class LocalFileChangeTracker;
 class SyncableFileOperationRunner;
 
 // This class works as a bridge between LocalFileSyncService (which is a
 // per-profile object) and FileSystemContext's (which is a per-storage-partition
 // object and may exist multiple in a profile).
 // An instance of this class is shared by FileSystemContexts and outlives
 // LocalFileSyncService.
 class WEBKIT_STORAGE_EXPORT LocalFileSyncContext
@@ skipping 12 matching lines @@
                                         FileSystemContext* file_system_context,
                                         const StatusCallback& callback);
 
   // Called when the corresponding LocalFileSyncService exits.
   // This method must be called on UI thread.
   void ShutdownOnUIThread();
 
   // OperationRunner is accessible only on IO thread.
   base::WeakPtr<SyncableFileOperationRunner> operation_runner() const;
 
+  // SyncContext is accessible only on IO thread.
+  LocalFileSyncStatus* sync_status() const;
+
  private:
   typedef std::deque<StatusCallback> StatusCallbackQueue;
   friend class base::RefCountedThreadSafe<LocalFileSyncContext>;
   friend class CannedSyncableFileSystem;
 
-  ~LocalFileSyncContext();
+  virtual ~LocalFileSyncContext();
 
   void ShutdownOnIOThread();
 
   // Helper routines for MaybeInitializeFileSystemContext.
   void InitializeFileSystemContextOnIOThread(
       const GURL& source_url,
       FileSystemContext* file_system_context);
   SyncStatusCode InitializeChangeTrackerOnFileThread(
       scoped_ptr<LocalFileChangeTracker>* tracker_ptr,
       FileSystemContext* file_system_context);
   void DidInitializeChangeTracker(
       scoped_ptr<LocalFileChangeTracker>* tracker_ptr,
       const GURL& source_url,
       FileSystemContext* file_system_context,
       SyncStatusCode status);
   void DidInitialize(
       const GURL& source_url,
       FileSystemContext* file_system_context,
       SyncStatusCode status);
 
   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 
   // OperationRunner. This must be accessed only on IO thread.
   scoped_ptr<SyncableFileOperationRunner> operation_runner_;
 
+  // Keeps track of writing/syncing status.
+  // This must be accessed only on IO thread.
+  scoped_ptr<LocalFileSyncStatus> sync_status_;
+
   // Pointers to file system contexts that have been initialized for
   // synchronization (i.e. that own this instance).
   // This must be accessed only on UI thread.
   std::set<FileSystemContext*> file_system_contexts_;
 
+  // Accessed only on UI thread.
   std::map<FileSystemContext*, StatusCallbackQueue>
       pending_initialize_callbacks_;
 
   // Origin to context map. (Assuming that as far as we're in the same
   // profile single origin wouldn't belong to multiple FileSystemContexts.)
+  // Accessed only on UI thread.
   std::map<GURL, FileSystemContext*> origin_to_contexts_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalFileSyncContext);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_SYNCABLE_LOCAL_FILE_SYNC_CONTEXT_H_