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_BROWSER_BROWSER_URL_HANDLER_IMPL_H_
6#define CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_
7
8#include <vector>
9#include <utility>
10
11#include "base/gtest_prod_util.h"
12#include "base/memory/singleton.h"
13#include "content/public/browser/browser_url_handler.h"
14
15class GURL;
16
17namespace content {
18class BrowserContext;
19
20class CONTENT_EXPORT BrowserURLHandlerImpl : public BrowserURLHandler {
21 public:
22  // Returns the singleton instance.
23  static BrowserURLHandlerImpl* GetInstance();
24
25  // BrowserURLHandler implementation:
26  virtual void RewriteURLIfNecessary(GURL* url,
27                                     BrowserContext* browser_context,
28                                     bool* reverse_on_redirect) OVERRIDE;
29  // Add the specified handler pair to the list of URL handlers.
30  virtual void AddHandlerPair(URLHandler handler,
31                              URLHandler reverse_handler) OVERRIDE;
32
33  // Reverses the rewriting that was done for |original| using the new |url|.
34  bool ReverseURLRewrite(GURL* url, const GURL& original,
35                         BrowserContext* browser_context);
36
37 private:
38  // This object is a singleton:
39  BrowserURLHandlerImpl();
40  virtual ~BrowserURLHandlerImpl();
41  friend struct DefaultSingletonTraits<BrowserURLHandlerImpl>;
42
43  // The list of known URLHandlers, optionally with reverse-rewriters.
44  typedef std::pair<URLHandler, URLHandler> HandlerPair;
45  std::vector<HandlerPair> url_handlers_;
46
47  FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, BasicRewriteAndReverse);
48  FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, NullHandlerReverse);
49
50  DISALLOW_COPY_AND_ASSIGN(BrowserURLHandlerImpl);
51};
52
53}  // namespace content
54
55#endif  // CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_
56