Index: chrome/browser/chromeos/file_manager/snapshot_manager.h |
diff --git a/chrome/browser/chromeos/file_manager/snapshot_manager.h b/chrome/browser/chromeos/file_manager/snapshot_manager.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..89ede078365224529f4ecfec06e619c95d1d707c |
--- /dev/null |
+++ b/chrome/browser/chromeos/file_manager/snapshot_manager.h |
@@ -0,0 +1,56 @@ |
+// Copyright 2014 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_FILE_MANAGER_SNAPSHOT_MANAGER_H_ |
+#define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_SNAPSHOT_MANAGER_H_ |
+ |
+#include "base/callback_forward.h" |
+#include "base/files/file.h" |
+#include "base/files/file_path.h" |
+#include "base/memory/ref_counted.h" |
+#include "base/memory/weak_ptr.h" |
+#include "webkit/common/blob/shareable_file_reference.h" |
hashimoto
2014/06/19 06:16:52
nit: Can't be replaced with a forward declaration?
kinaba
2014/06/20 01:17:08
Done.
|
+ |
+class Profile; |
+ |
+namespace file_manager { |
+ |
+// Utility class for creating a snapshot of a file system file on local disk. |
+// The class wraps the underlying implementation of fileapi's CreateSnapshotFile |
+// and prolongs the lifetime of snapshot files so that the client code that just |
+// accepts file paths works without problems. |
+class SnapshotManager { |
+ public: |
+ // The callback type for CreateManagedSnapshot. |
+ typedef base::Callback<void(const base::FilePath&)> LocalPathCallback; |
+ |
+ explicit SnapshotManager(Profile* profile); |
+ ~SnapshotManager(); |
+ |
+ // Creates a snapshot file copy of a file system file |absolute_file_path| and |
+ // returns back to |callback|. Returns empty path for failure. |
+ void CreateManagedSnapshot(const base::FilePath& absolute_file_path, |
+ const LocalPathCallback& callback); |
+ |
+ private: |
+ // Part of CreateManagedSnapshot. |
+ void OnCreateSnapshotFile( |
+ const LocalPathCallback& callback, |
+ base::File::Error result, |
+ const base::File::Info& file_info, |
+ const base::FilePath& platform_path, |
+ const scoped_refptr<webkit_blob::ShareableFileReference>& file_ref); |
+ |
+ Profile* profile_; |
+ std::vector<scoped_refptr<webkit_blob::ShareableFileReference> > file_refs_; |
+ |
+ // Note: This should remain the last member so it'll be destroyed and |
+ // invalidate the weak pointers before any other memebers are destoryed. |
+ base::WeakPtrFactory<SnapshotManager> weak_ptr_factory_; |
+ DISALLOW_COPY_AND_ASSIGN(SnapshotManager); |
+}; |
+ |
+} // namespace file_manager |
+ |
+#endif // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_SNAPSHOT_MANAGER_H_ |