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1 // Copyright 2017 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 COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_SERVICE_H_ | |
6 #define COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_SERVICE_H_ | |
7 | |
8 #include "components/keyed_service/core/keyed_service.h" | |
9 #include "components/offline_pages/core/offline_page_item.h" | |
10 | |
11 class GURL; | |
12 | |
13 namespace offline_pages { | |
14 | |
15 // Main class for the Offline Pages Prefetching feature, which will ask a server | |
16 // to package content from interesting URLs and send it to Chrome for | |
17 // consumption while offline. | |
18 class PrefetchService : public KeyedService { | |
19 public: | |
20 struct PrefetchURL { | |
21 // Used to differentiate URLs from different sources. |name_space| should | |
22 // be unique per source. |id| can be anything useful to identify the page, | |
23 // but will not be used for deduplication. | |
24 ClientId client_id; | |
25 | |
26 // This URL will be prefetched by the service. | |
27 GURL url; | |
28 }; | |
29 | |
30 ~PrefetchService() override = default; | |
31 | |
32 // Called when a consumer has new URLs for the system to prefetch. | |
33 virtual void OnNewPrefetchURLs( | |
jianli
2017/04/18 00:41:00
I think some URLs might not be new since PrefetchS
dewittj
2017/04/18 18:20:25
Changed to AddCandidatePrefetchURLs.
| |
34 const std::vector<PrefetchURL>& prefetch_urls) = 0; | |
35 | |
36 // Called when all existing suggestions are no longer considered valid for a | |
37 // given namespace. The prefetch service should remove any URLs that | |
38 // have not yet started downloading within that namespace. | |
39 virtual void RemoveAllUnprocessedPrefetchURLs( | |
40 const std::string& name_space) = 0; | |
41 | |
42 // Called to invalidate a single PrefetchURL entry identified by |client_id|. | |
43 // If multiple have the same |client_id|, they will all be removed. | |
44 virtual void RemovePrefetchURLsByClientId(const ClientId& client_id) = 0; | |
45 }; | |
46 | |
47 } // namespace offline_pages | |
48 | |
49 #endif // COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_SERVICE_IMPL_H_ | |
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