Index: chrome/browser/chromeos/drive/file_system/get_file_for_saving_operation.h |
diff --git a/chrome/browser/chromeos/drive/file_system/get_file_for_saving_operation.h b/chrome/browser/chromeos/drive/file_system/get_file_for_saving_operation.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3215cc27401b4575e99c97da83942b2412080b05 |
--- /dev/null |
+++ b/chrome/browser/chromeos/drive/file_system/get_file_for_saving_operation.h |
@@ -0,0 +1,92 @@ |
+// Copyright 2013 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 CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_GET_FILE_FOR_SAVING_OPERATION_H_ |
+#define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_GET_FILE_FOR_SAVING_OPERATION_H_ |
+ |
+#include "base/basictypes.h" |
+#include "base/memory/scoped_ptr.h" |
+#include "base/memory/weak_ptr.h" |
+#include "chrome/browser/chromeos/drive/file_errors.h" |
+#include "chrome/browser/chromeos/drive/file_system_interface.h" |
+ |
+namespace base { |
+class FilePath; |
+class SequencedTaskRunner; |
+} // namespace base |
+ |
+namespace drive { |
+namespace internal { |
+class FileCache; |
+class FileWriteWatcher; |
+class ResourceMetadata; |
+} // namespace internal |
+ |
+class JobScheduler; |
+class ResourceEntry; |
+ |
+namespace file_system { |
+ |
+class CreateFileOperation; |
+class DownloadOperation; |
+class OperationObserver; |
+ |
+// Implements GetFileForSaving() operation that prepares a local cache for |
+// a Drive file whose next modification is monitored and notified to the |
+// OperationObserver. |
+// TODO(kinaba): crbug.com/269424: we might want to monitor all the changes |
+// to the cache directory, not just the one immediately after the save dialog. |
+class GetFileForSavingOperation { |
+ public: |
+ GetFileForSavingOperation(base::SequencedTaskRunner* blocking_task_runner, |
+ OperationObserver* observer, |
+ JobScheduler* scheduler, |
+ internal::ResourceMetadata* metadata, |
+ internal::FileCache* cache, |
+ const base::FilePath& temporary_file_directory); |
+ ~GetFileForSavingOperation(); |
+ |
+ // Makes sure that |file_path| in the file system is available in the local |
+ // cache, and marks it as dirty. The next modification to the cache file is |
+ // watched and is automatically notified to the observer. If the entry is not |
+ // present in the file system, it is created. |
+ void GetFileForSaving(const base::FilePath& file_path, |
+ const GetFileCallback& callback); |
+ |
+ internal::FileWriteWatcher* file_write_watcher_for_testing() { |
+ return file_write_watcher_.get(); |
+ } |
+ |
+ private: |
+ void GetFileForSavingAfterCreate(const base::FilePath& file_path, |
+ const GetFileCallback& callback, |
+ FileError error); |
+ void GetFileForSavingAfterDownload(const GetFileCallback& callback, |
+ FileError error, |
+ const base::FilePath& cache_path, |
+ scoped_ptr<ResourceEntry> entry); |
+ void GetFileForSavingAfterMarkDirty(const GetFileCallback& callback, |
+ const base::FilePath& cache_path, |
+ scoped_ptr<ResourceEntry> entry, |
+ FileError error); |
+ void GetFileForSavingAfterWatch(const GetFileCallback& callback, |
+ const base::FilePath& cache_path, |
+ scoped_ptr<ResourceEntry> entry, |
+ bool success); |
+ |
+ scoped_ptr<CreateFileOperation> create_file_operation_; |
+ scoped_ptr<DownloadOperation> download_operation_; |
+ scoped_ptr<internal::FileWriteWatcher> file_write_watcher_; |
+ internal::FileCache* cache_; |
+ |
+ // Note: This should remain the last member so it'll be destroyed and |
+ // invalidate the weak pointers before any other members are destroyed. |
+ base::WeakPtrFactory<GetFileForSavingOperation> weak_ptr_factory_; |
+ DISALLOW_COPY_AND_ASSIGN(GetFileForSavingOperation); |
+}; |
+ |
+} // namespace file_system |
+} // namespace drive |
+ |
+#endif // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_GET_FILE_FOR_SAVING_OPERATION_H_ |