chrome/renderer/spellchecker/custom_dictionary_engine.h

   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
  11 #include "base/macros.h"
  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.
  17 class 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(const std::set<std::string>& words_added,
  34                                  const std::set<std::string>& words_removed);
  35
  36  private:
  37   // Correctly spelled words.
  38   std::set<base::string16> dictionary_;
  39
  40   DISALLOW_COPY_AND_ASSIGN(CustomDictionaryEngine);
  41 };
  42
  43 #endif  // CHROME_RENDERER_SPELLCHECKER_CUSTOM_DICTIONARY_ENGINE_H_