content/browser/browser_url_handler_impl.h

   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
  15 class GURL;
  16
  17 namespace content {
  18 class BrowserContext;
  19
  20 class 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_