From c6f9203a46211bb08b84f73b4e1df303f1ab8c42 Mon Sep 17 00:00:00 2001
From: "kinuko@chromium.org"
<kinuko@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>
Date: Tue, 28 May 2013 02:08:07 +0000
Subject: Move browser-specific FileAPI code from webkit/fileapi to
webkit/browser/fileapi
Moving following files:
- file_system_context*
- file_system_operation*
- file_system_url*
- and all others but not in syncable/ ones
BUG=239710
TBR=avi@chromium.org, tzik@chromium.org
Review URL: https://codereview.chromium.org/15859007
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202482 0039d316-1c4b-4281-b951-d872f2087c98
---
.../fileapi/file_system_file_stream_reader.h | 79 ++++++++++++++++++++++
1 file changed, 79 insertions(+)
create mode 100644 webkit/browser/fileapi/file_system_file_stream_reader.h
(limited to 'webkit/browser/fileapi/file_system_file_stream_reader.h')
diff --git a/webkit/browser/fileapi/file_system_file_stream_reader.h b/webkit/browser/fileapi/file_system_file_stream_reader.h
new file mode 100644
index 0000000..5a2fc9a
--- /dev/null
+++ b/webkit/browser/fileapi/file_system_file_stream_reader.h
@@ -0,0 +1,79 @@
+// 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_BROWSER_FILEAPI_FILE_SYSTEM_FILE_STREAM_READER_H_
+#define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_FILE_STREAM_READER_H_
+
+#include "base/bind.h"
+#include "base/memory/ref_counted.h"
+#include "base/platform_file.h"
+#include "base/time.h"
+#include "webkit/blob/file_stream_reader.h"
+#include "webkit/blob/shareable_file_reference.h"
+#include "webkit/browser/fileapi/file_system_url.h"
+#include "webkit/storage/webkit_storage_export.h"
+
+namespace base {
+class FilePath;
+class SequencedTaskRunner;
+}
+
+namespace webkit_blob {
+class LocalFileStreamReader;
+}
+
+namespace fileapi {
+
+class FileSystemContext;
+
+// TODO(kinaba,satorux): This generic implementation would work for any
+// filesystems but remote filesystem should implement its own reader
+// rather than relying on FileSystemOperation::GetSnapshotFile() which
+// may force downloading the entire contents for remote files.
+class WEBKIT_STORAGE_EXPORT_PRIVATE FileSystemFileStreamReader
+ : public webkit_blob::FileStreamReader {
+ public:
+ // Creates a new FileReader for a filesystem URL |url| form |initial_offset|.
+ // |expected_modification_time| specifies the expected last modification if
+ // the value is non-null, the reader will check the underlying file's actual
+ // modification time to see if the file has been modified, and if it does any
+ // succeeding read operations should fail with ERR_UPLOAD_FILE_CHANGED error.
+ FileSystemFileStreamReader(FileSystemContext* file_system_context,
+ const FileSystemURL& url,
+ int64 initial_offset,
+ const base::Time& expected_modification_time);
+ virtual ~FileSystemFileStreamReader();
+
+ // FileStreamReader overrides.
+ virtual int Read(net::IOBuffer* buf, int buf_len,
+ const net::CompletionCallback& callback) OVERRIDE;
+ virtual int64 GetLength(
+ const net::Int64CompletionCallback& callback) OVERRIDE;
+
+ private:
+ int CreateSnapshot(const base::Closure& callback,
+ const net::CompletionCallback& error_callback);
+ void DidCreateSnapshot(
+ const base::Closure& callback,
+ const net::CompletionCallback& error_callback,
+ base::PlatformFileError file_error,
+ const base::PlatformFileInfo& file_info,
+ const base::FilePath& platform_path,
+ const scoped_refptr<webkit_blob::ShareableFileReference>& file_ref);
+
+ scoped_refptr<FileSystemContext> file_system_context_;
+ FileSystemURL url_;
+ const int64 initial_offset_;
+ const base::Time expected_modification_time_;
+ scoped_ptr<webkit_blob::LocalFileStreamReader> local_file_reader_;
+ scoped_refptr<webkit_blob::ShareableFileReference> snapshot_ref_;
+ bool has_pending_create_snapshot_;
+ base::WeakPtrFactory<FileSystemFileStreamReader> weak_factory_;
+
+ DISALLOW_COPY_AND_ASSIGN(FileSystemFileStreamReader);
+};
+
+} // namespace fileapi
+
+#endif // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_FILE_STREAM_READER_H_
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