content/components/navigation_interception/intercept_navigation_resource_throttle.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_COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_RESOURCE_THROTTLE_H_
   6 #define CONTENT_COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_RESOURCE_THROTTLE_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "content/public/browser/resource_throttle.h"
  13 #include "content/public/common/page_transition_types.h"
  14
  15 class GURL;
  16
  17 namespace content {
  18 class RenderViewHost;
  19 struct Referrer;
  20 }
  21
  22 namespace net {
  23 class URLRequest;
  24 }
  25
  26 namespace content {
  27
  28 // This class allows the provider of the Callback to selectively ignore top
  29 // level navigations.
  30 class InterceptNavigationResourceThrottle : public content::ResourceThrottle {
  31  public:
  32   typedef base::Callback<bool(content::RenderViewHost* /* source */,
  33                               const GURL& /* url */,
  34                               const content::Referrer& /*referrer*/,
  35                               bool /* is_post */,
  36                               bool /* has_user_gesture */,
  37                               PageTransition /* page transition type */)>
  38       CheckOnUIThreadCallback;
  39
  40   InterceptNavigationResourceThrottle(
  41       net::URLRequest* request,
  42       CheckOnUIThreadCallback should_ignore_callback);
  43   virtual ~InterceptNavigationResourceThrottle();
  44
  45   // content::ResourceThrottle implementation:
  46   virtual void WillStartRequest(bool* defer) OVERRIDE;
  47   virtual void WillRedirectRequest(const GURL& new_url, bool* defer) OVERRIDE;
  48
  49  private:
  50   bool CheckIfShouldIgnoreNavigation(const GURL& url);
  51   void OnResultObtained(bool should_ignore_navigation);
  52
  53   net::URLRequest* request_;
  54   CheckOnUIThreadCallback should_ignore_callback_;
  55   base::WeakPtrFactory<InterceptNavigationResourceThrottle> weak_ptr_factory_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(InterceptNavigationResourceThrottle);
  58 };
  59
  60 }  // namespace content
  61
  62 #endif  // CONTENT_COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_RESOURCE_THROTTLE_H_