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 #include "chrome/renderer/spellchecker/custom_dictionary_engine.h"
6
7 #include "base/logging.h"
8 #include "base/strings/utf_string_conversions.h"
9
CustomDictionaryEngine()10 CustomDictionaryEngine::CustomDictionaryEngine() {
11 }
12
~CustomDictionaryEngine()13 CustomDictionaryEngine::~CustomDictionaryEngine() {
14 }
15
Init(const std::set<std::string> & custom_words)16 void CustomDictionaryEngine::Init(const std::set<std::string>& custom_words) {
17 // SpellingMenuOberver calls UTF16ToUTF8(word) to convert words for storage,
18 // synchronization, and use in the custom dictionary engine. Since
19 // (UTF8ToUTF16(UTF16ToUTF8(word)) == word) holds, the engine does not need to
20 // normalize the strings.
21 for (std::set<std::string>::const_iterator it = custom_words.begin();
22 it != custom_words.end();
23 ++it) {
24 dictionary_.insert(base::UTF8ToUTF16(*it));
25 }
26 }
27
OnCustomDictionaryChanged(const std::vector<std::string> & words_added,const std::vector<std::string> & words_removed)28 void CustomDictionaryEngine::OnCustomDictionaryChanged(
29 const std::vector<std::string>& words_added,
30 const std::vector<std::string>& words_removed) {
31 for (std::vector<std::string>::const_iterator it = words_added.begin();
32 it != words_added.end();
33 ++it) {
34 dictionary_.insert(base::UTF8ToUTF16(*it));
35 }
36 for (std::vector<std::string>::const_iterator it = words_removed.begin();
37 it != words_removed.end();
38 ++it) {
39 dictionary_.erase(base::UTF8ToUTF16(*it));
40 }
41 }
42
SpellCheckWord(const base::string16 & text,int misspelling_start,int misspelling_len)43 bool CustomDictionaryEngine::SpellCheckWord(
44 const base::string16& text,
45 int misspelling_start,
46 int misspelling_len) {
47 // The text to be checked is empty on OSX(async) right now.
48 // TODO(groby): Fix as part of async hook-up. (http://crbug.com/178241)
49 return
50 misspelling_start >= 0 &&
51 misspelling_len > 0 &&
52 size_t(misspelling_start + misspelling_len) <= text.length() &&
53 dictionary_.count(text.substr(misspelling_start, misspelling_len)) > 0;
54 }
55