mirror of
https://gitlab.futo.org/keyboard/latinime.git
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82 lines
3.5 KiB
Java
82 lines
3.5 KiB
Java
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.latin.personalization;
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import android.content.Context;
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import com.android.inputmethod.annotations.UsedForTesting;
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import com.android.inputmethod.latin.Constants;
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import com.android.inputmethod.latin.Dictionary;
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import com.android.inputmethod.latin.ExpandableBinaryDictionary;
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import com.android.inputmethod.latin.PrevWordsInfo;
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import com.android.inputmethod.latin.utils.DistracterFilter;
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import java.io.File;
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import java.util.Locale;
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/**
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* Locally gathers stats about the words user types and various other signals like auto-correction
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* cancellation or manual picks. This allows the keyboard to adapt to the typist over time.
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*/
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public class UserHistoryDictionary extends DecayingExpandableBinaryDictionaryBase {
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/* package */ static final String NAME = UserHistoryDictionary.class.getSimpleName();
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// TODO: Make this constructor private
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/* package */ UserHistoryDictionary(final Context context, final Locale locale) {
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super(context, getDictName(NAME, locale, null /* dictFile */), locale,
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Dictionary.TYPE_USER_HISTORY, null /* dictFile */);
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}
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@UsedForTesting
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public static UserHistoryDictionary getDictionary(final Context context, final Locale locale,
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final File dictFile, final String dictNamePrefix) {
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return PersonalizationHelper.getUserHistoryDictionary(context, locale);
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}
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/**
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* Add a word to the user history dictionary.
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*
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* @param userHistoryDictionary the user history dictionary
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* @param prevWordsInfo the information of previous words
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* @param word the word the user inputted
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* @param isValid whether the word is valid or not
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* @param timestamp the timestamp when the word has been inputted
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* @param distracterFilter the filter to check whether the word is a distracter
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*/
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public static void addToDictionary(final ExpandableBinaryDictionary userHistoryDictionary,
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final PrevWordsInfo prevWordsInfo, final String word, final boolean isValid,
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final int timestamp, final DistracterFilter distracterFilter) {
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final String prevWord = prevWordsInfo.mPrevWord;
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if (word.length() >= Constants.DICTIONARY_MAX_WORD_LENGTH ||
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(prevWord != null && prevWord.length() >= Constants.DICTIONARY_MAX_WORD_LENGTH)) {
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return;
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}
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final int frequency = isValid ?
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FREQUENCY_FOR_WORDS_IN_DICTS : FREQUENCY_FOR_WORDS_NOT_IN_DICTS;
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userHistoryDictionary.addUnigramEntryWithCheckingDistracter(word, frequency,
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null /* shortcutTarget */, 0 /* shortcutFreq */, false /* isNotAWord */,
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false /* isBlacklisted */, timestamp, distracterFilter);
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// Do not insert a word as a bigram of itself
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if (word.equals(prevWord)) {
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return;
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}
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if (null != prevWord) {
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userHistoryDictionary.addNgramEntry(prevWordsInfo, word, frequency, timestamp);
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}
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}
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}
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