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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_AUTOCOMPLETE_NETWORK_ACTION_PREDICTOR_H_
#define CHROME_BROWSER_AUTOCOMPLETE_NETWORK_ACTION_PREDICTOR_H_
#pragma once
#include "base/string16.h"
struct AutocompleteMatch;
class Profile;
// This class is responsible for determining the correct predictive network
// action to take given for a given AutocompleteMatch and entered text.
class NetworkActionPredictor {
public:
enum Action {
ACTION_PRERENDER = 0,
ACTION_PRECONNECT,
ACTION_NONE,
LAST_PREDICT_ACTION = ACTION_NONE
};
explicit NetworkActionPredictor(Profile* profile);
virtual ~NetworkActionPredictor();
// Return the recommended action given |user_text|, the text the user has
// entered in the Omnibox, and |match|, the suggestion from Autocomplete.
// This method uses information from the ShortcutsBackend including how much
// of the matching entry the user typed, and how long it's been since the user
// visited the matching URL, to calculate a score between 0 and 1. This score
// is then mapped to an Action.
Action RecommendAction(const string16& user_text,
const AutocompleteMatch& match) const;
// Return true if the suggestion type warrants a TCP/IP preconnection.
// i.e., it is now quite likely that the user will select the related domain.
static bool IsPreconnectable(const AutocompleteMatch& match);
private:
Profile* profile_;
};
#endif // CHROME_BROWSER_AUTOCOMPLETE_NETWORK_ACTION_PREDICTOR_H_
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