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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.android.inputmethod.latin;
import android.text.TextUtils;
import android.view.inputmethod.CompletionInfo;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
public class SuggestedWords {
public static final SuggestedWords EMPTY = new SuggestedWords(
new ArrayList<SuggestedWordInfo>(0), false, false, false, false, false);
public final boolean mTypedWordValid;
public final boolean mHasAutoCorrectionCandidate;
public final boolean mWillAutoCorrect;
public final boolean mIsPunctuationSuggestions;
public final boolean mIsObsoleteSuggestions;
public final boolean mIsPrediction;
private final ArrayList<SuggestedWordInfo> mSuggestedWordInfoList;
public SuggestedWords(final ArrayList<SuggestedWordInfo> suggestedWordInfoList,
final boolean typedWordValid,
final boolean hasAutoCorrectionCandidate,
final boolean isPunctuationSuggestions,
final boolean isObsoleteSuggestions,
final boolean isPrediction) {
mSuggestedWordInfoList = suggestedWordInfoList;
mTypedWordValid = typedWordValid;
mHasAutoCorrectionCandidate = hasAutoCorrectionCandidate;
mWillAutoCorrect = !mTypedWordValid && mHasAutoCorrectionCandidate;
mIsPunctuationSuggestions = isPunctuationSuggestions;
mIsObsoleteSuggestions = isObsoleteSuggestions;
mIsPrediction = isPrediction;
}
public int size() {
return mSuggestedWordInfoList.size();
}
public CharSequence getWord(int pos) {
return mSuggestedWordInfoList.get(pos).mWord;
}
public SuggestedWordInfo getWordInfo(int pos) {
return mSuggestedWordInfoList.get(pos);
}
public SuggestedWordInfo getInfo(int pos) {
return mSuggestedWordInfoList.get(pos);
}
public boolean hasAutoCorrectionWord() {
return mHasAutoCorrectionCandidate && size() > 1 && !mTypedWordValid;
}
public boolean willAutoCorrect() {
return mWillAutoCorrect;
}
@Override
public String toString() {
// Pretty-print method to help debug
return "SuggestedWords:"
+ " mTypedWordValid=" + mTypedWordValid
+ " mHasAutoCorrectionCandidate=" + mHasAutoCorrectionCandidate
+ " mIsPunctuationSuggestions=" + mIsPunctuationSuggestions
+ " words=" + Arrays.toString(mSuggestedWordInfoList.toArray());
}
public static ArrayList<SuggestedWordInfo> getFromApplicationSpecifiedCompletions(
final CompletionInfo[] infos) {
final ArrayList<SuggestedWordInfo> result = new ArrayList<SuggestedWordInfo>();
for (CompletionInfo info : infos) {
if (null != info && info.getText() != null) {
result.add(new SuggestedWordInfo(info.getText(), SuggestedWordInfo.MAX_SCORE,
SuggestedWordInfo.KIND_APP_DEFINED, Dictionary.TYPE_APPLICATION_DEFINED));
}
}
return result;
}
// Should get rid of the first one (what the user typed previously) from suggestions
// and replace it with what the user currently typed.
public static ArrayList<SuggestedWordInfo> getTypedWordAndPreviousSuggestions(
final CharSequence typedWord, final SuggestedWords previousSuggestions) {
final ArrayList<SuggestedWordInfo> suggestionsList = new ArrayList<SuggestedWordInfo>();
final HashSet<String> alreadySeen = new HashSet<String>();
suggestionsList.add(new SuggestedWordInfo(typedWord, SuggestedWordInfo.MAX_SCORE,
SuggestedWordInfo.KIND_TYPED, Dictionary.TYPE_USER_TYPED));
alreadySeen.add(typedWord.toString());
final int previousSize = previousSuggestions.size();
for (int pos = 1; pos < previousSize; pos++) {
final SuggestedWordInfo prevWordInfo = previousSuggestions.getWordInfo(pos);
final String prevWord = prevWordInfo.mWord.toString();
// Filter out duplicate suggestion.
if (!alreadySeen.contains(prevWord)) {
suggestionsList.add(prevWordInfo);
alreadySeen.add(prevWord);
}
}
return suggestionsList;
}
public static class SuggestedWordInfo {
public static final int MAX_SCORE = Integer.MAX_VALUE;
public static final int KIND_TYPED = 0; // What user typed
public static final int KIND_CORRECTION = 1; // Simple correction/suggestion
public static final int KIND_COMPLETION = 2; // Completion (suggestion with appended chars)
public static final int KIND_WHITELIST = 3; // Whitelisted word
public static final int KIND_BLACKLIST = 4; // Blacklisted word
public static final int KIND_HARDCODED = 5; // Hardcoded suggestion, e.g. punctuation
public static final int KIND_APP_DEFINED = 6; // Suggested by the application
public static final int KIND_SHORTCUT = 7; // A shortcut
private final String mWordStr;
public final CharSequence mWord;
public final int mScore;
public final int mKind; // one of the KIND_* constants above
public final int mCodePointCount;
public final String mSourceDict;
private String mDebugString = "";
public SuggestedWordInfo(final CharSequence word, final int score, final int kind,
final String sourceDict) {
mWordStr = word.toString();
mWord = word;
mScore = score;
mKind = kind;
mSourceDict = sourceDict;
mCodePointCount = StringUtils.codePointCount(mWordStr);
}
public void setDebugString(String str) {
if (null == str) throw new NullPointerException("Debug info is null");
mDebugString = str;
}
public String getDebugString() {
return mDebugString;
}
public int codePointCount() {
return mCodePointCount;
}
public int codePointAt(int i) {
return mWordStr.codePointAt(i);
}
@Override
public String toString() {
if (TextUtils.isEmpty(mDebugString)) {
return mWordStr;
} else {
return mWordStr + " (" + mDebugString.toString() + ")";
}
}
// TODO: Consolidate this method and StringUtils.removeDupes() in the future.
public static void removeDups(ArrayList<SuggestedWordInfo> candidates) {
if (candidates.size() <= 1) {
return;
}
int i = 1;
while(i < candidates.size()) {
final SuggestedWordInfo cur = candidates.get(i);
for (int j = 0; j < i; ++j) {
final SuggestedWordInfo previous = candidates.get(j);
if (TextUtils.equals(cur.mWord, previous.mWord)) {
candidates.remove(cur.mScore < previous.mScore ? i : j);
--i;
break;
}
}
++i;
}
}
}
}
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