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.
5 #ifndef CONTENT_BROWSER_LOADER_ASYNC_RESOURCE_HANDLER_H_
6 #define CONTENT_BROWSER_LOADER_ASYNC_RESOURCE_HANDLER_H_
10 #include "base/memory/ref_counted.h"
11 #include "content/browser/loader/resource_handler.h"
12 #include "content/browser/loader/resource_message_delegate.h"
21 class ResourceContext;
22 class ResourceDispatcherHostImpl;
23 class ResourceMessageFilter;
26 // Used to complete an asynchronous resource request in response to resource
27 // load events from the resource dispatcher host.
28 class AsyncResourceHandler : public ResourceHandler,
29 public ResourceMessageDelegate {
31 AsyncResourceHandler(net::URLRequest* request,
32 ResourceDispatcherHostImpl* rdh);
33 virtual ~AsyncResourceHandler();
35 virtual bool OnMessageReceived(const IPC::Message& message,
36 bool* message_was_ok) OVERRIDE;
38 // ResourceHandler implementation:
39 virtual bool OnUploadProgress(int request_id,
41 uint64 size) OVERRIDE;
42 virtual bool OnRequestRedirected(int request_id,
44 ResourceResponse* response,
45 bool* defer) OVERRIDE;
46 virtual bool OnResponseStarted(int request_id,
47 ResourceResponse* response,
48 bool* defer) OVERRIDE;
49 virtual bool OnWillStart(int request_id,
51 bool* defer) OVERRIDE;
52 virtual bool OnWillRead(int request_id,
53 scoped_refptr<net::IOBuffer>* buf,
55 int min_size) OVERRIDE;
56 virtual bool OnReadCompleted(int request_id,
58 bool* defer) OVERRIDE;
59 virtual bool OnResponseCompleted(int request_id,
60 const net::URLRequestStatus& status,
61 const std::string& security_info) OVERRIDE;
62 virtual void OnDataDownloaded(int request_id,
63 int bytes_downloaded) OVERRIDE;
66 // IPC message handlers:
67 void OnFollowRedirect(int request_id,
68 bool has_new_first_party_for_cookies,
69 const GURL& new_first_party_for_cookies);
70 void OnDataReceivedACK(int request_id);
72 bool EnsureResourceBufferIsInitialized();
73 void ResumeIfDeferred();
75 scoped_refptr<ResourceBuffer> buffer_;
76 ResourceDispatcherHostImpl* rdh_;
78 // Number of messages we've sent to the renderer that we haven't gotten an
79 // ACK for. This allows us to avoid having too many messages in flight.
80 int pending_data_count_;
86 bool has_checked_for_sufficient_resources_;
87 bool sent_received_response_msg_;
88 bool sent_first_data_msg_;
90 DISALLOW_COPY_AND_ASSIGN(AsyncResourceHandler);
93 } // namespace content
95 #endif // CONTENT_BROWSER_LOADER_ASYNC_RESOURCE_HANDLER_H_