content/browser/loader/navigation_url_loader_impl_core.h

   1 // Copyright 2014 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_LOADER_NAVIGATION_URL_LOADER_IMPL_CORE_H_
   6 #define CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_IMPL_CORE_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/macros.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "content/browser/loader/navigation_url_loader_impl.h"
  13
  14 namespace net {
  15 class URLRequest;
  16 struct RedirectInfo;
  17 }
  18
  19 namespace content {
  20
  21 class FrameTreeNode;
  22 class NavigationResourceHandler;
  23 class ResourceContext;
  24 class ResourceHandler;
  25 class ResourceRequestBody;
  26 class StreamHandle;
  27 struct ResourceResponse;
  28
  29 // The IO-thread counterpart to the NavigationURLLoaderImpl. It lives on the IO
  30 // thread and is owned by the UI-thread NavigationURLLoaderImpl.
  31 // NavigationURLLoaderImplCore interacts with the ResourceDispatcherHost stack
  32 // and forwards signals back to the loader on the UI thread.
  33 class NavigationURLLoaderImplCore {
  34  public:
  35   // Creates a new NavigationURLLoaderImplCore that forwards signals back to
  36   // |loader| on the UI thread.
  37   explicit NavigationURLLoaderImplCore(
  38       const base::WeakPtr<NavigationURLLoaderImpl>& loader);
  39   ~NavigationURLLoaderImplCore();
  40
  41   // Starts the request.
  42   void Start(ResourceContext* resource_context,
  43              int frame_tree_node_id,
  44              scoped_ptr<NavigationRequestInfo> request_info);
  45
  46   // Follows the current pending redirect.
  47   void FollowRedirect();
  48
  49   void set_resource_handler(NavigationResourceHandler* resource_handler) {
  50     resource_handler_ = resource_handler;
  51   }
  52
  53   // Notifies |loader_| on the UI thread that the request was redirected.
  54   void NotifyRequestRedirected(const net::RedirectInfo& redirect_info,
  55                                ResourceResponse* response);
  56
  57   // Notifies |loader_| on the UI thread that the response started.
  58   void NotifyResponseStarted(ResourceResponse* response,
  59                              scoped_ptr<StreamHandle> body);
  60
  61   // Notifies |loader_| on the UI thread that the request failed.
  62   void NotifyRequestFailed(bool in_cache, int net_error);
  63
  64  private:
  65   base::WeakPtr<NavigationURLLoaderImpl> loader_;
  66   NavigationResourceHandler* resource_handler_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(NavigationURLLoaderImplCore);
  69 };
  70
  71 }  // namespace content
  72
  73 #endif  // CONTENT_BROWSER_LOADER_NAVIGATION_URL_LOADER_IMPL_CORE_H_