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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef COMPONENTS_SUGGESTIONS_SUGGESTIONS_SERVICE_H_ | 5 #ifndef COMPONENTS_SUGGESTIONS_SUGGESTIONS_SERVICE_H_ |
| 6 #define COMPONENTS_SUGGESTIONS_SUGGESTIONS_SERVICE_H_ | 6 #define COMPONENTS_SUGGESTIONS_SUGGESTIONS_SERVICE_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 #include <vector> | 9 #include <vector> |
| 10 | 10 |
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| 50 // An interface to fetch server suggestions asynchronously. | 50 // An interface to fetch server suggestions asynchronously. |
| 51 class SuggestionsService : public KeyedService, public net::URLFetcherDelegate { | 51 class SuggestionsService : public KeyedService, public net::URLFetcherDelegate { |
| 52 public: | 52 public: |
| 53 typedef base::Callback<void(const SuggestionsProfile&)> ResponseCallback; | 53 typedef base::Callback<void(const SuggestionsProfile&)> ResponseCallback; |
| 54 | 54 |
| 55 SuggestionsService( | 55 SuggestionsService( |
| 56 net::URLRequestContextGetter* url_request_context, | 56 net::URLRequestContextGetter* url_request_context, |
| 57 scoped_ptr<SuggestionsStore> suggestions_store, | 57 scoped_ptr<SuggestionsStore> suggestions_store, |
| 58 scoped_ptr<ImageManager> thumbnail_manager, | 58 scoped_ptr<ImageManager> thumbnail_manager, |
| 59 scoped_ptr<BlacklistStore> blacklist_store); | 59 scoped_ptr<BlacklistStore> blacklist_store); |
| 60 virtual ~SuggestionsService(); | 60 ~SuggestionsService() override; |
| 61 | 61 |
| 62 // Whether this service is enabled. | 62 // Whether this service is enabled. |
| 63 static bool IsEnabled(); | 63 static bool IsEnabled(); |
| 64 | 64 |
| 65 // Whether the user is part of a control group. | 65 // Whether the user is part of a control group. |
| 66 static bool IsControlGroup(); | 66 static bool IsControlGroup(); |
| 67 | 67 |
| 68 // Request suggestions data, which will be passed to |callback|. |sync_state| | 68 // Request suggestions data, which will be passed to |callback|. |sync_state| |
| 69 // will influence the behavior of this function (see SyncState definition). | 69 // will influence the behavior of this function (see SyncState definition). |
| 70 // | 70 // |
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| 117 // Creates a request to the suggestions service, properly setting headers. | 117 // Creates a request to the suggestions service, properly setting headers. |
| 118 net::URLFetcher* CreateSuggestionsRequest(const GURL& url); | 118 net::URLFetcher* CreateSuggestionsRequest(const GURL& url); |
| 119 | 119 |
| 120 // Called to service the requestors if the issued suggestions request has | 120 // Called to service the requestors if the issued suggestions request has |
| 121 // not completed in a given amount of time. | 121 // not completed in a given amount of time. |
| 122 virtual void OnRequestTimeout(); | 122 virtual void OnRequestTimeout(); |
| 123 | 123 |
| 124 // net::URLFetcherDelegate implementation. | 124 // net::URLFetcherDelegate implementation. |
| 125 // Called when fetch request completes. Parses the received suggestions data, | 125 // Called when fetch request completes. Parses the received suggestions data, |
| 126 // and dispatches them to callbacks stored in queue. | 126 // and dispatches them to callbacks stored in queue. |
| 127 virtual void OnURLFetchComplete(const net::URLFetcher* source) override; | 127 void OnURLFetchComplete(const net::URLFetcher* source) override; |
| 128 | 128 |
| 129 // KeyedService implementation. | 129 // KeyedService implementation. |
| 130 virtual void Shutdown() override; | 130 void Shutdown() override; |
| 131 | 131 |
| 132 // Load the cached suggestions and service the requestors with them. | 132 // Load the cached suggestions and service the requestors with them. |
| 133 void ServeFromCache(); | 133 void ServeFromCache(); |
| 134 | 134 |
| 135 // Apply the local blacklist to |suggestions|, then serve the requestors. | 135 // Apply the local blacklist to |suggestions|, then serve the requestors. |
| 136 void FilterAndServe(SuggestionsProfile* suggestions); | 136 void FilterAndServe(SuggestionsProfile* suggestions); |
| 137 | 137 |
| 138 // Schedule a blacklisting request if the local blacklist isn't empty. | 138 // Schedule a blacklisting request if the local blacklist isn't empty. |
| 139 // |last_request_successful| is used for exponentially backing off when | 139 // |last_request_successful| is used for exponentially backing off when |
| 140 // requests fail. | 140 // requests fail. |
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| 194 | 194 |
| 195 // For callbacks may be run after destruction. | 195 // For callbacks may be run after destruction. |
| 196 base::WeakPtrFactory<SuggestionsService> weak_ptr_factory_; | 196 base::WeakPtrFactory<SuggestionsService> weak_ptr_factory_; |
| 197 | 197 |
| 198 DISALLOW_COPY_AND_ASSIGN(SuggestionsService); | 198 DISALLOW_COPY_AND_ASSIGN(SuggestionsService); |
| 199 }; | 199 }; |
| 200 | 200 |
| 201 } // namespace suggestions | 201 } // namespace suggestions |
| 202 | 202 |
| 203 #endif // COMPONENTS_SUGGESTIONS_SUGGESTIONS_SERVICE_H_ | 203 #endif // COMPONENTS_SUGGESTIONS_SUGGESTIONS_SERVICE_H_ |
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