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_AUTOCOMPLETE_HISTORY_QUICK_PROVIDER_H_ 6 #define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_QUICK_PROVIDER_H_ 7 8 #include <string> 9 10 #include "base/basictypes.h" 11 #include "base/compiler_specific.h" 12 #include "chrome/browser/autocomplete/autocomplete_input.h" 13 #include "chrome/browser/autocomplete/autocomplete_match.h" 14 #include "chrome/browser/autocomplete/history_provider.h" 15 #include "chrome/browser/history/history_types.h" 16 #include "chrome/browser/history/in_memory_url_index.h" 17 18 class Profile; 19 20 namespace history { 21 class ScoredHistoryMatch; 22 } // namespace history 23 24 // This class is an autocomplete provider (a pseudo-internal component of 25 // the history system) which quickly (and synchronously) provides matching 26 // results from recently or frequently visited sites in the profile's 27 // history. 28 class HistoryQuickProvider : public HistoryProvider { 29 public: 30 HistoryQuickProvider(AutocompleteProviderListener* listener, 31 Profile* profile); 32 33 // AutocompleteProvider. |minimal_changes| is ignored since there is no asynch 34 // completion performed. 35 virtual void Start(const AutocompleteInput& input, 36 bool minimal_changes) OVERRIDE; 37 38 virtual void DeleteMatch(const AutocompleteMatch& match) OVERRIDE; 39 40 // Disable this provider. For unit testing purposes only. This is required 41 // because this provider is closely associated with the HistoryURLProvider 42 // and in order to properly test the latter the HistoryQuickProvider must 43 // be disabled. 44 // TODO(mrossetti): Eliminate this once the HUP has been refactored. set_disabled(bool disabled)45 static void set_disabled(bool disabled) { disabled_ = disabled; } 46 47 private: 48 friend class HistoryQuickProviderTest; 49 FRIEND_TEST_ALL_PREFIXES(HistoryQuickProviderTest, Spans); 50 FRIEND_TEST_ALL_PREFIXES(HistoryQuickProviderTest, Relevance); 51 52 virtual ~HistoryQuickProvider(); 53 54 // Performs the autocomplete matching and scoring. 55 void DoAutocomplete(); 56 57 // Creates an AutocompleteMatch from |history_match|, assigning it 58 // the score |score|. 59 AutocompleteMatch QuickMatchToACMatch( 60 const history::ScoredHistoryMatch& history_match, 61 int score); 62 63 // Returns the index that should be used for history lookups. 64 history::InMemoryURLIndex* GetIndex(); 65 66 // Only for use in unittests. Takes ownership of |index|. set_index(history::InMemoryURLIndex * index)67 void set_index(history::InMemoryURLIndex* index) { 68 index_for_testing_.reset(index); 69 } 70 71 AutocompleteInput autocomplete_input_; 72 std::string languages_; 73 74 // Only used for testing. 75 scoped_ptr<history::InMemoryURLIndex> index_for_testing_; 76 77 // This provider is disabled when true. 78 static bool disabled_; 79 80 DISALLOW_COPY_AND_ASSIGN(HistoryQuickProvider); 81 }; 82 83 #endif // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_QUICK_PROVIDER_H_ 84