custom_dictionary_engine.h revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
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_RENDERER_SPELLCHECKER_CUSTOM_DICTIONARY_ENGINE_H_
6#define CHROME_RENDERER_SPELLCHECKER_CUSTOM_DICTIONARY_ENGINE_H_
7
8#include <set>
9#include <string>
10#include <vector>
11
12#include "base/strings/string16.h"
13
14// Custom spellcheck dictionary. Words in this dictionary are always correctly
15// spelled. Words that are not in this dictionary may or may not be correctly
16// spelled.
17class CustomDictionaryEngine {
18 public:
19  CustomDictionaryEngine();
20  ~CustomDictionaryEngine();
21
22  // Initialize the custom dictionary engine.
23  void Init(const std::set<std::string>& words);
24
25  // Spellcheck |text|. Assumes that another spelling engine has set
26  // |misspelling_start| and |misspelling_len| to indicate a misspelling.
27  // Returns true if there are no misspellings, otherwise returns false.
28  bool SpellCheckWord(const base::string16& text,
29                      int misspelling_start,
30                      int misspelling_len);
31
32  // Update custom dictionary words.
33  void OnCustomDictionaryChanged(
34      const std::vector<std::string>& words_added,
35      const std::vector<std::string>& words_removed);
36
37 private:
38  // Correctly spelled words.
39  std::set<base::string16> dictionary_;
40
41  DISALLOW_COPY_AND_ASSIGN(CustomDictionaryEngine);
42};
43
44#endif  // CHROME_RENDERER_SPELLCHECKER_CUSTOM_DICTIONARY_ENGINE_H_
45