chrome/browser/ui/webui/predictors/predictors_handler.h

   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   ~PredictorsHandler() override;
  28
  29   // WebUIMessageHandler implementation.
  30   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_