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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/spellcheck/renderer/custom_dictionary_engine.h"
#include <stddef.h>
#include "base/strings/utf_string_conversions.h"
CustomDictionaryEngine::CustomDictionaryEngine() {
}
CustomDictionaryEngine::~CustomDictionaryEngine() {
}
void CustomDictionaryEngine::Init(const std::set<std::string>& custom_words) {
dictionary_.clear();
// SpellingMenuOberver calls UTF16ToUTF8(word) to convert words for storage,
// synchronization, and use in the custom dictionary engine. Since
// (UTF8ToUTF16(UTF16ToUTF8(word)) == word) holds, the engine does not need to
// normalize the strings.
for (const std::string& word : custom_words)
dictionary_.insert(base::UTF8ToUTF16(word));
}
void CustomDictionaryEngine::OnCustomDictionaryChanged(
const std::set<std::string>& words_added,
const std::set<std::string>& words_removed) {
for (const std::string& word : words_added)
dictionary_.insert(base::UTF8ToUTF16(word));
for (const std::string& word : words_removed)
dictionary_.erase(base::UTF8ToUTF16(word));
}
bool CustomDictionaryEngine::SpellCheckWord(const std::u16string& text,
size_t misspelling_start,
size_t misspelling_len) {
// The text to be checked is empty on OSX(async) right now.
// TODO(groby): Fix as part of async hook-up. (http://crbug.com/178241)
return misspelling_len > 0 &&
misspelling_start + misspelling_len <= text.length() &&
dictionary_.count(text.substr(misspelling_start, misspelling_len)) > 0;
}
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