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1 // Copyright (c) 2013 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 #include "content/browser/loader/offline_manager.h" | |
6 | |
7 #include "content/common/resource_messages.h" | |
8 #include "net/base/load_flags.h" | |
9 #include "net/http/http_response_info.h" | |
10 #include "net/url_request/url_request.h" | |
11 | |
12 namespace content { | |
13 | |
14 OfflineManager::OfflineManager() {} | |
15 | |
16 OfflineManager::~OfflineManager() {} | |
17 | |
18 int OfflineManager::OfflineLoadFlags( | |
19 int child_id, int route_id, const ResourceHostMsg_Request& request_data) { | |
darin (slow to review)
2013/03/27 18:33:59
how will you use the request_data parameter?
Randy Smith (Not in Mondays)
2013/04/03 19:20:34
Ooops :-}. I original put it in so that I'd have
| |
20 std::pair<int, int> key(std::make_pair(child_id, route_id)); | |
21 // std::map::insert just returns an existing element if it already exists. | |
22 const RouteMap::iterator it( | |
23 offline_state_map_.insert(std::make_pair(key, ROUTE_INIT)).first); | |
24 switch(it->second) { | |
25 case ROUTE_INIT: | |
26 return net::LOAD_FROM_CACHE_IF_OFFLINE; | |
27 case ROUTE_ONLINE: | |
28 return 0; | |
29 case ROUTE_OFFLINE: | |
30 return net::LOAD_ONLY_FROM_CACHE; | |
31 } | |
32 NOTREACHED(); | |
33 return 0; | |
34 } | |
35 | |
36 void OfflineManager::RequestCompleted( | |
37 int child_id, int route_id, const net::URLRequest* request) { | |
38 const RouteMap::iterator it( | |
39 offline_state_map_.find(std::make_pair(child_id, route_id))); | |
40 const net::HttpResponseInfo& response_info(request->response_info()); | |
41 | |
42 // We should have seen this on the incoming side. | |
43 DCHECK(offline_state_map_.end() != it); | |
44 | |
45 if (it->second == ROUTE_INIT) { | |
46 if (response_info.server_data_unavailable) { | |
47 it->second = ROUTE_OFFLINE; | |
48 } else if (!response_info.was_cached || | |
49 response_info.response_time >= request->creation_time()) { | |
50 // If we got the response from the network or validated it as part | |
51 // of this request, that means our connection to the host is working. | |
52 it->second = ROUTE_ONLINE; | |
53 } | |
54 } | |
55 } | |
56 | |
57 void OfflineManager::RouteDeleted(int child_id, int route_id) { | |
58 const RouteMap::iterator it( | |
59 offline_state_map_.find(std::make_pair(child_id, route_id))); | |
60 if (offline_state_map_.end() != it) | |
61 offline_state_map_.erase(it); | |
62 } | |
63 | |
64 } // namespace content | |
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