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// Copyright (c) 2012 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 COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_
#define COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "components/history/core/browser/history_types.h"
#include "components/omnibox/browser/autocomplete_input.h"
#include "components/omnibox/browser/autocomplete_match.h"
#include "components/omnibox/browser/history_provider.h"
#include "components/omnibox/browser/in_memory_url_index.h"
struct ScoredHistoryMatch;
// This class is an autocomplete provider (a pseudo-internal component of
// the history system) which quickly (and synchronously) provides matching
// results from recently or frequently visited sites in the profile's
// history.
class HistoryQuickProvider : public HistoryProvider {
public:
explicit HistoryQuickProvider(AutocompleteProviderClient* client);
// AutocompleteProvider. |minimal_changes| is ignored since there is no asynch
// completion performed.
void Start(const AutocompleteInput& input, bool minimal_changes) override;
// Disable this provider. For unit testing purposes only. This is required
// because this provider is closely associated with the HistoryURLProvider
// and in order to properly test the latter the HistoryQuickProvider must
// be disabled.
// TODO(mrossetti): Eliminate this once the HUP has been refactored.
static void set_disabled(bool disabled) { disabled_ = disabled; }
private:
friend class HistoryQuickProviderTest;
FRIEND_TEST_ALL_PREFIXES(HistoryQuickProviderTest, Spans);
FRIEND_TEST_ALL_PREFIXES(HistoryQuickProviderTest, Relevance);
~HistoryQuickProvider() override;
// Performs the autocomplete matching and scoring.
void DoAutocomplete();
// Creates an AutocompleteMatch from |history_match|, assigning it
// the score |score|.
AutocompleteMatch QuickMatchToACMatch(const ScoredHistoryMatch& history_match,
int score);
AutocompleteInput autocomplete_input_;
std::string languages_;
InMemoryURLIndex* in_memory_url_index_; // Not owned by this class.
// This provider is disabled when true.
static bool disabled_;
DISALLOW_COPY_AND_ASSIGN(HistoryQuickProvider);
};
#endif // COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_
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