| // 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 COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_ |
| #define COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_ |
| |
| #include <optional> |
| |
| #include "base/compiler_specific.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/memory/raw_ptr.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); |
| HistoryQuickProvider(const HistoryQuickProvider&) = delete; |
| HistoryQuickProvider& operator=(const HistoryQuickProvider&) = delete; |
| |
| // AutocompleteProvider. |minimal_changes| is ignored since there is no asynch |
| // completion performed. |
| void Start(const AutocompleteInput& input, bool minimal_changes) override; |
| |
| // Estimates dynamic memory usage. |
| // See base/trace_event/memory_usage_estimator.h for more info. |
| size_t EstimateMemoryUsage() const 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; |
| |
| ~HistoryQuickProvider() override; |
| |
| // Performs the autocomplete matching and scoring. |
| void DoAutocomplete(); |
| |
| // Predicts if there may be a URL-what-you-typed match. If so, returns a |
| // prediction of its score, which HQP suggestions shouldn't exceed. Returns |
| // `nullopt` otherwise. The goal is for URL-what-you-typed matches for visited |
| // URLs to beat out any longer URLs, no matter how frequently they're visited. |
| std::optional<int> MaxMatchScore(); |
| |
| // Creates an AutocompleteMatch from |history_match|, assigning it |
| // the score |score|. |
| AutocompleteMatch QuickMatchToACMatch(const ScoredHistoryMatch& history_match, |
| int score); |
| |
| AutocompleteInput autocomplete_input_; |
| raw_ptr<InMemoryURLIndex> in_memory_url_index_; // Not owned by this class. |
| raw_ptr<const TemplateURL> starter_pack_engine_; |
| |
| // This provider is disabled when true. |
| static bool disabled_; |
| }; |
| |
| #endif // COMPONENTS_OMNIBOX_BROWSER_HISTORY_QUICK_PROVIDER_H_ |