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.
5 #ifndef CHROME_BROWSER_AUTOCOMPLETE_HISTORY_QUICK_PROVIDER_H_
6 #define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_QUICK_PROVIDER_H_
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"
22 struct ScoredHistoryMatch;
23 } // namespace history
25 // This class is an autocomplete provider (a pseudo-internal component of
26 // the history system) which quickly (and synchronously) provides matching
27 // results from recently or frequently visited sites in the profile's
29 class HistoryQuickProvider : public HistoryProvider {
31 HistoryQuickProvider(AutocompleteProviderListener* listener,
34 // AutocompleteProvider. |minimal_changes| is ignored since there is no asynch
35 // completion performed.
36 virtual void Start(const AutocompleteInput& input,
37 bool minimal_changes) OVERRIDE;
39 virtual void DeleteMatch(const AutocompleteMatch& match) OVERRIDE;
41 // Disable this provider. For unit testing purposes only. This is required
42 // because this provider is closely associated with the HistoryURLProvider
43 // and in order to properly test the latter the HistoryQuickProvider must
45 // TODO(mrossetti): Eliminate this once the HUP has been refactored.
46 static void set_disabled(bool disabled) { disabled_ = disabled; }
49 friend class HistoryQuickProviderTest;
50 FRIEND_TEST_ALL_PREFIXES(HistoryQuickProviderTest, Spans);
51 FRIEND_TEST_ALL_PREFIXES(HistoryQuickProviderTest, Relevance);
53 virtual ~HistoryQuickProvider();
55 // Performs the autocomplete matching and scoring.
56 void DoAutocomplete();
58 // Creates an AutocompleteMatch from |history_match|, assigning it
60 AutocompleteMatch QuickMatchToACMatch(
61 const history::ScoredHistoryMatch& history_match,
64 // Returns the index that should be used for history lookups.
65 history::InMemoryURLIndex* GetIndex();
67 // Fill and return an ACMatchClassifications structure given the term
68 // matches (|matches|) to highlight where terms were found.
69 static ACMatchClassifications SpansFromTermMatch(
70 const history::TermMatches& matches,
74 // Only for use in unittests. Takes ownership of |index|.
75 void set_index(history::InMemoryURLIndex* index) {
76 index_for_testing_.reset(index);
79 AutocompleteInput autocomplete_input_;
80 std::string languages_;
82 // Only used for testing.
83 scoped_ptr<history::InMemoryURLIndex> index_for_testing_;
85 // This provider is disabled when true.
86 static bool disabled_;
88 DISALLOW_COPY_AND_ASSIGN(HistoryQuickProvider);
91 #endif // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_QUICK_PROVIDER_H_