1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNC_FILE_SYSTEM_BACKEND_H_ 6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNC_FILE_SYSTEM_BACKEND_H_ 7 8 #include "chrome/browser/profiles/profile.h" 9 #include "chrome/browser/sync_file_system/sync_callbacks.h" 10 #include "chrome/browser/sync_file_system/sync_status_code.h" 11 #include "content/public/browser/notification_observer.h" 12 #include "content/public/browser/notification_registrar.h" 13 #include "webkit/browser/fileapi/file_system_backend.h" 14 #include "webkit/browser/fileapi/file_system_quota_util.h" 15 #include "webkit/browser/fileapi/sandbox_file_system_backend_delegate.h" 16 17 namespace sync_file_system { 18 19 class LocalFileChangeTracker; 20 class LocalFileSyncContext; 21 22 class SyncFileSystemBackend 23 : public fileapi::FileSystemBackend { 24 public: 25 explicit SyncFileSystemBackend(Profile* profile); 26 virtual ~SyncFileSystemBackend(); 27 28 static SyncFileSystemBackend* CreateForTesting(); 29 30 // FileSystemBackend overrides. 31 virtual bool CanHandleType(fileapi::FileSystemType type) const OVERRIDE; 32 virtual void Initialize(fileapi::FileSystemContext* context) OVERRIDE; 33 virtual void ResolveURL(const fileapi::FileSystemURL& url, 34 fileapi::OpenFileSystemMode mode, 35 const OpenFileSystemCallback& callback) OVERRIDE; 36 virtual fileapi::AsyncFileUtil* GetAsyncFileUtil( 37 fileapi::FileSystemType type) OVERRIDE; 38 virtual fileapi::CopyOrMoveFileValidatorFactory* 39 GetCopyOrMoveFileValidatorFactory( 40 fileapi::FileSystemType type, 41 base::File::Error* error_code) OVERRIDE; 42 virtual fileapi::FileSystemOperation* CreateFileSystemOperation( 43 const fileapi::FileSystemURL& url, 44 fileapi::FileSystemContext* context, 45 base::File::Error* error_code) const OVERRIDE; 46 virtual bool SupportsStreaming( 47 const fileapi::FileSystemURL& url) const OVERRIDE; 48 virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader( 49 const fileapi::FileSystemURL& url, 50 int64 offset, 51 const base::Time& expected_modification_time, 52 fileapi::FileSystemContext* context) const OVERRIDE; 53 virtual scoped_ptr<fileapi::FileStreamWriter> CreateFileStreamWriter( 54 const fileapi::FileSystemURL& url, 55 int64 offset, 56 fileapi::FileSystemContext* context) const OVERRIDE; 57 virtual fileapi::FileSystemQuotaUtil* GetQuotaUtil() OVERRIDE; 58 59 static SyncFileSystemBackend* GetBackend( 60 const fileapi::FileSystemContext* context); 61 change_tracker()62 LocalFileChangeTracker* change_tracker() { return change_tracker_.get(); } 63 void SetLocalFileChangeTracker(scoped_ptr<LocalFileChangeTracker> tracker); 64 sync_context()65 LocalFileSyncContext* sync_context() { return sync_context_.get(); } 66 void set_sync_context(LocalFileSyncContext* sync_context); 67 68 private: 69 class ProfileHolder : public content::NotificationObserver { 70 public: 71 explicit ProfileHolder(Profile* profile); 72 73 // NotificationObserver override. 74 virtual void Observe(int type, 75 const content::NotificationSource& source, 76 const content::NotificationDetails& details) OVERRIDE; 77 78 Profile* GetProfile(); 79 80 private: 81 content::NotificationRegistrar registrar_; 82 Profile* profile_; 83 }; 84 85 // Not owned. 86 fileapi::FileSystemContext* context_; 87 88 scoped_ptr<LocalFileChangeTracker> change_tracker_; 89 scoped_refptr<LocalFileSyncContext> sync_context_; 90 91 // Should be accessed on the UI thread. 92 scoped_ptr<ProfileHolder> profile_holder_; 93 94 // A flag to skip the initialization sequence of SyncFileSystemService for 95 // testing. 96 bool skip_initialize_syncfs_service_for_testing_; 97 98 fileapi::SandboxFileSystemBackendDelegate* GetDelegate() const; 99 100 void InitializeSyncFileSystemService( 101 const GURL& origin_url, 102 const SyncStatusCallback& callback); 103 void DidInitializeSyncFileSystemService( 104 fileapi::FileSystemContext* context, 105 const GURL& origin_url, 106 fileapi::FileSystemType type, 107 fileapi::OpenFileSystemMode mode, 108 const OpenFileSystemCallback& callback, 109 SyncStatusCode status); 110 111 DISALLOW_COPY_AND_ASSIGN(SyncFileSystemBackend); 112 }; 113 114 } // namespace sync_file_system 115 116 #endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_SYNC_FILE_SYSTEM_BACKEND_H_ 117