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. 4 5 #ifndef CHROME_BROWSER_UI_WEBUI_PREDICTORS_PREDICTORS_HANDLER_H_ 6 #define CHROME_BROWSER_UI_WEBUI_PREDICTORS_PREDICTORS_HANDLER_H_ 7 8 #include "base/compiler_specific.h" 9 #include "chrome/browser/predictors/resource_prefetch_predictor.h" 10 #include "content/public/browser/web_ui_message_handler.h" 11 12 namespace base { 13 class ListValue; 14 } 15 16 namespace predictors { 17 class AutocompleteActionPredictor; 18 class ResourcePrefetchPredictor; 19 } 20 21 class Profile; 22 23 // The handler for Javascript messages for about:predictors. 24 class PredictorsHandler : public content::WebUIMessageHandler { 25 public: 26 explicit PredictorsHandler(Profile* profile); 27 virtual ~PredictorsHandler(); 28 29 // WebUIMessageHandler implementation. 30 virtual void RegisterMessages() OVERRIDE; 31 32 private: 33 // Synchronously fetches the database from AutocompleteActionPredictor and 34 // calls into JS with the resulting DictionaryValue. 35 void RequestAutocompleteActionPredictorDb(const base::ListValue* args); 36 37 // Fetches stats for the ResourcePrefetchPredictor and returns it as a 38 // DictionaryValue to the JS. 39 void RequestResourcePrefetchPredictorDb(const base::ListValue* args); 40 41 // Helper for RequestResourcePrefetchPredictorDb. 42 void AddPrefetchDataMapToListValue( 43 const predictors::ResourcePrefetchPredictor::PrefetchDataMap& data_map, 44 base::ListValue* db) const; 45 46 predictors::AutocompleteActionPredictor* autocomplete_action_predictor_; 47 predictors::ResourcePrefetchPredictor* resource_prefetch_predictor_; 48 49 DISALLOW_COPY_AND_ASSIGN(PredictorsHandler); 50 }; 51 52 #endif // CHROME_BROWSER_UI_WEBUI_PREDICTORS_PREDICTORS_HANDLER_H_ 53
