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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_PREDICTORS_PREDICTORS_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_PREDICTORS_PREDICTORS_HANDLER_H_
#include "base/memory/raw_ptr.h"
#include "chrome/browser/predictors/resource_prefetch_predictor.h"
#include "content/public/browser/web_ui_message_handler.h"
namespace predictors {
class AutocompleteActionPredictor;
class LoadingPredictor;
} // namespace predictors
class Profile;
// The handler for Javascript messages for about:predictors.
class PredictorsHandler : public content::WebUIMessageHandler {
public:
explicit PredictorsHandler(Profile* profile);
PredictorsHandler(const PredictorsHandler&) = delete;
PredictorsHandler& operator=(const PredictorsHandler&) = delete;
~PredictorsHandler() override;
// WebUIMessageHandler implementation.
void RegisterMessages() override;
private:
// Synchronously fetches the database from AutocompleteActionPredictor and
// calls into JS with the resulting `base::Value::Dict`.
void RequestAutocompleteActionPredictorDb(const base::Value::List& args);
// Fetches stats for the ResourcePrefetchPredictor and returns it as a
// `base::Value::Dict` to the JS.
void RequestResourcePrefetchPredictorDb(const base::Value::List& args);
// Helpers for RequestResourcePrefetchPredictorDb.
void AddOriginDataMapToListValue(
const std::map<std::string, predictors::OriginData>& data_map,
base::Value::List* db) const;
raw_ptr<predictors::AutocompleteActionPredictor>
autocomplete_action_predictor_;
raw_ptr<predictors::LoadingPredictor> loading_predictor_;
};
#endif // CHROME_BROWSER_UI_WEBUI_PREDICTORS_PREDICTORS_HANDLER_H_
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