103 lines
4.1 KiB
Java
103 lines
4.1 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package com.android.inputmethod.latin;
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import android.content.Context;
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import android.content.res.Resources;
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import android.text.TextUtils;
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import android.util.Log;
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import android.util.Pair;
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import java.util.HashMap;
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import java.util.Locale;
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public class WhitelistDictionary extends ExpandableDictionary {
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private static final boolean DBG = LatinImeLogger.sDBG;
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private static final String TAG = WhitelistDictionary.class.getSimpleName();
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private final HashMap<String, Pair<Integer, String>> mWhitelistWords =
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new HashMap<String, Pair<Integer, String>>();
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// TODO: Conform to the async load contact of ExpandableDictionary
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public WhitelistDictionary(final Context context, final Locale locale) {
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super(context, Suggest.DIC_WHITELIST);
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final Resources res = context.getResources();
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final Locale previousLocale = LocaleUtils.setSystemLocale(res, locale);
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initWordlist(res.getStringArray(R.array.wordlist_whitelist));
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LocaleUtils.setSystemLocale(res, previousLocale);
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}
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private void initWordlist(String[] wordlist) {
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mWhitelistWords.clear();
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final int N = wordlist.length;
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if (N % 3 != 0) {
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if (DBG) {
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Log.d(TAG, "The number of the whitelist is invalid.");
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}
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return;
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}
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try {
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for (int i = 0; i < N; i += 3) {
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final int score = Integer.valueOf(wordlist[i]);
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final String before = wordlist[i + 1];
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final String after = wordlist[i + 2];
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if (before != null && after != null) {
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mWhitelistWords.put(
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before.toLowerCase(), new Pair<Integer, String>(score, after));
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addWord(after, score);
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}
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}
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} catch (NumberFormatException e) {
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if (DBG) {
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Log.d(TAG, "The score of the word is invalid.");
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}
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}
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}
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public String getWhitelistedWord(String before) {
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if (before == null) return null;
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final String lowerCaseBefore = before.toLowerCase();
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if(mWhitelistWords.containsKey(lowerCaseBefore)) {
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if (DBG) {
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Log.d(TAG, "--- found whitelistedWord: " + lowerCaseBefore);
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}
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return mWhitelistWords.get(lowerCaseBefore).second;
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}
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return null;
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}
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// See LatinIME#updateSuggestions. This breaks in the (queer) case that the whitelist
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// lists that word a should autocorrect to word b, and word c would autocorrect to
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// an upper-cased version of a. In this case, the way this return value is used would
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// remove the first candidate when the user typed the upper-cased version of A.
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// Example : abc -> def and xyz -> Abc
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// A user typing Abc would experience it being autocorrected to something else (not
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// necessarily def).
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// There is no such combination in the whitelist at the time and there probably won't
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// ever be - it doesn't make sense. But still.
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public boolean shouldForciblyAutoCorrectFrom(CharSequence word) {
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if (TextUtils.isEmpty(word)) return false;
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final String correction = getWhitelistedWord(word.toString());
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if (TextUtils.isEmpty(correction)) return false;
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return !correction.equals(word);
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}
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// Leave implementation of getWords and isValidWord to the superclass.
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// The words have been added to the ExpandableDictionary with addWord() inside initWordlist.
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}
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