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 CONTENT_CHILD_FILEAPI_WEBFILEWRITER_IMPL_H_
6#define CONTENT_CHILD_FILEAPI_WEBFILEWRITER_IMPL_H_
7
8#include <string>
9
10#include "base/memory/ref_counted.h"
11#include "base/memory/weak_ptr.h"
12#include "base/message_loop/message_loop_proxy.h"
13#include "content/child/fileapi/webfilewriter_base.h"
14
15namespace content {
16
17// An implementation of WebFileWriter for use in chrome renderers and workers.
18class WebFileWriterImpl : public WebFileWriterBase,
19                          public base::SupportsWeakPtr<WebFileWriterImpl> {
20 public:
21  enum Type {
22    TYPE_SYNC,
23    TYPE_ASYNC,
24  };
25
26  WebFileWriterImpl(const GURL& path,
27                    blink::WebFileWriterClient* client,
28                    Type type,
29                    base::MessageLoopProxy* main_thread_loop);
30  virtual ~WebFileWriterImpl();
31
32 protected:
33  // WebFileWriterBase overrides
34  virtual void DoTruncate(const GURL& path, int64 offset) OVERRIDE;
35  virtual void DoWrite(const GURL& path, const std::string& blob_id,
36                       int64 offset) OVERRIDE;
37  virtual void DoCancel() OVERRIDE;
38
39 private:
40  class WriterBridge;
41
42  void RunOnMainThread(const base::Closure& closure);
43
44  scoped_refptr<base::MessageLoopProxy> main_thread_loop_;
45  scoped_refptr<WriterBridge> bridge_;
46};
47
48}  // namespace content
49
50#endif  // CONTENT_CHILD_FILEAPI_WEBFILEWRITER_IMPL_H_
51