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Side by Side Diff: components/bookmarks/browser/bookmark_index.h

Issue 2569333003: Rename BookmarkIndex to TitledUrlIndex and BookmarkMatch to TitledUrlMatch (Closed)
Patch Set: fix bookmark_bridge.cc Created 4 years ago
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1 // Copyright 2014 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 COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_INDEX_H_
6 #define COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_INDEX_H_
7
8 #include <stddef.h>
9
10 #include <map>
11 #include <set>
12 #include <string>
13 #include <vector>
14
15 #include "base/macros.h"
16 #include "base/strings/string16.h"
17 #include "components/query_parser/query_parser.h"
18
19 namespace bookmarks {
20
21 class TitledUrlNode;
22 class TitledUrlNodeSorter;
23 struct BookmarkMatch;
24
25 // BookmarkIndex maintains an index of the titles and URLs of bookmarks for
26 // quick look up. BookmarkIndex is owned and maintained by BookmarkModel, you
27 // shouldn't need to interact directly with BookmarkIndex.
28 //
29 // BookmarkIndex maintains the index (index_) as a map of sets. The map (type
30 // Index) maps from a lower case string to the set (type NodeSet) of
31 // TitledUrlNodes that contain that string in their title or URL.
32 class BookmarkIndex {
33 public:
34 BookmarkIndex(std::unique_ptr<TitledUrlNodeSorter> sorter);
35 ~BookmarkIndex();
36
37 // Invoked when a title/URL pair has been added to the model.
38 void Add(const TitledUrlNode* node);
39
40 // Invoked when a title/URL pair has been removed from the model.
41 void Remove(const TitledUrlNode* node);
42
43 // Returns up to |max_count| of matches containing each term from the text
44 // |query| in either the title or the URL.
45 void GetResultsMatching(const base::string16& query,
46 size_t max_count,
47 query_parser::MatchingAlgorithm matching_algorithm,
48 std::vector<BookmarkMatch>* results);
49
50 private:
51 using TitledUrlNodes = std::vector<const TitledUrlNode*>;
52 using TitledUrlNodeSet = std::set<const TitledUrlNode*>;
53 using Index = std::map<base::string16, TitledUrlNodeSet>;
54
55 // Constructs |sorted_nodes| by taking the matches in |matches| and sorting
56 // them in decreasing order of typed count (if supported by the client) and
57 // deduping them.
58 void SortMatches(const TitledUrlNodeSet& matches,
59 TitledUrlNodes* sorted_nodes) const;
60
61 // Add |node| to |results| if the node matches the query.
62 void AddMatchToResults(const TitledUrlNode* node,
63 query_parser::QueryParser* parser,
64 const query_parser::QueryNodeVector& query_nodes,
65 std::vector<BookmarkMatch>* results);
66
67 // Populates |matches| for the specified term. If |first_term| is true, this
68 // is the first term in the query. Returns true if there is at least one node
69 // matching the term.
70 bool GetResultsMatchingTerm(
71 const base::string16& term,
72 bool first_term,
73 query_parser::MatchingAlgorithm matching_algorithm,
74 TitledUrlNodeSet* matches);
75
76 // Returns the set of query words from |query|.
77 std::vector<base::string16> ExtractQueryWords(const base::string16& query);
78
79 // Adds |node| to |index_|.
80 void RegisterNode(const base::string16& term, const TitledUrlNode* node);
81
82 // Removes |node| from |index_|.
83 void UnregisterNode(const base::string16& term, const TitledUrlNode* node);
84
85 Index index_;
86
87 std::unique_ptr<TitledUrlNodeSorter> sorter_;
88
89 DISALLOW_COPY_AND_ASSIGN(BookmarkIndex);
90 };
91
92 } // namespace bookmarks
93
94 #endif // COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_INDEX_H_
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