1// Copyright (c) 2012 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_RENDERER_DOM_STORAGE_DOM_STORAGE_PROXY_H_
6#define CONTENT_RENDERER_DOM_STORAGE_DOM_STORAGE_PROXY_H_
7
8#include "base/bind.h"
9#include "base/memory/ref_counted.h"
10#include "base/strings/nullable_string16.h"
11#include "base/strings/string16.h"
12#include "content/common/dom_storage/dom_storage_types.h"
13#include "url/gurl.h"
14
15namespace content {
16
17// Abstract interface for cached area, renderer to browser communications.
18class DOMStorageProxy : public base::RefCounted<DOMStorageProxy> {
19 public:
20  typedef base::Callback<void(bool)> CompletionCallback;
21
22  virtual void LoadArea(int connection_id,
23                        DOMStorageValuesMap* values,
24                        bool* send_log_get_messages,
25                        const CompletionCallback& callback) = 0;
26
27  virtual void SetItem(int connection_id,
28                       const base::string16& key,
29                       const base::string16& value,
30                       const GURL& page_url,
31                       const CompletionCallback& callback) = 0;
32
33  virtual void LogGetItem(int connection_id,
34                          const base::string16& key,
35                          const base::NullableString16& value) = 0;
36
37  virtual void RemoveItem(int connection_id,
38                          const base::string16& key,
39                          const GURL& page_url,
40                          const CompletionCallback& callback) = 0;
41
42  virtual void ClearArea(int connection_id,
43                         const GURL& page_url,
44                         const CompletionCallback& callback) = 0;
45
46 protected:
47  friend class base::RefCounted<DOMStorageProxy>;
48  virtual ~DOMStorageProxy() {}
49};
50
51}  // namespace content
52
53#endif  // CONTENT_RENDERER_DOM_STORAGE_DOM_STORAGE_PROXY_H_
54