LatinIME/java/src/com/android/inputmethod/latin/SuggestedWords.java

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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.view.inputmethod.CompletionInfo;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
public class SuggestedWords {
public static final SuggestedWords EMPTY = new SuggestedWords(null, false, false, false, null);
public final List<CharSequence> mWords;
public final boolean mTypedWordValid;
public final boolean mHasMinimalSuggestion;
public final boolean mIsPunctuationSuggestions;
public final List<SuggestedWordInfo> mSuggestedWordInfoList;
private SuggestedWords(List<CharSequence> words, boolean typedWordValid,
boolean hasMinimalSuggestion, boolean isPunctuationSuggestions,
List<SuggestedWordInfo> suggestedWordInfoList) {
if (words != null) {
mWords = words;
} else {
mWords = Collections.emptyList();
}
mTypedWordValid = typedWordValid;
mHasMinimalSuggestion = hasMinimalSuggestion;
mIsPunctuationSuggestions = isPunctuationSuggestions;
mSuggestedWordInfoList = suggestedWordInfoList;
}
public int size() {
return mWords.size();
}
public CharSequence getWord(int pos) {
return mWords.get(pos);
}
public boolean hasAutoCorrectionWord() {
return mHasMinimalSuggestion && size() > 1 && !mTypedWordValid;
}
public boolean hasWordAboveAutoCorrectionScoreThreshold() {
return mHasMinimalSuggestion && ((size() > 1 && !mTypedWordValid) || mTypedWordValid);
}
public boolean isPunctuationSuggestions() {
return mIsPunctuationSuggestions;
}
public static class Builder {
private List<CharSequence> mWords = new ArrayList<CharSequence>();
private boolean mTypedWordValid;
private boolean mHasMinimalSuggestion;
private boolean mIsPunctuationSuggestions;
private List<SuggestedWordInfo> mSuggestedWordInfoList =
new ArrayList<SuggestedWordInfo>();
public Builder() {
// Nothing to do here.
}
public Builder addWords(List<CharSequence> words,
List<SuggestedWordInfo> suggestedWordInfoList) {
final int N = words.size();
for (int i = 0; i < N; ++i) {
SuggestedWordInfo suggestedWordInfo = null;
if (suggestedWordInfoList != null) {
suggestedWordInfo = suggestedWordInfoList.get(i);
}
if (suggestedWordInfo == null) {
suggestedWordInfo = new SuggestedWordInfo();
}
addWord(words.get(i), suggestedWordInfo);
}
return this;
}
public Builder addWord(CharSequence word) {
return addWord(word, null, false);
}
public Builder addWord(CharSequence word, CharSequence debugString,
boolean isPreviousSuggestedWord) {
SuggestedWordInfo info = new SuggestedWordInfo(debugString, isPreviousSuggestedWord);
return addWord(word, info);
}
private Builder addWord(CharSequence word, SuggestedWordInfo suggestedWordInfo) {
mWords.add(word);
mSuggestedWordInfoList.add(suggestedWordInfo);
return this;
}
public Builder setApplicationSpecifiedCompletions(CompletionInfo[] infos) {
for (CompletionInfo info : infos)
addWord(info.getText());
return this;
}
public Builder setTypedWordValid(boolean typedWordValid) {
mTypedWordValid = typedWordValid;
return this;
}
public Builder setHasMinimalSuggestion(boolean hasMinimalSuggestion) {
mHasMinimalSuggestion = hasMinimalSuggestion;
return this;
}
public Builder setIsPunctuationSuggestions() {
mIsPunctuationSuggestions = true;
return this;
}
// Should get rid of the first one (what the user typed previously) from suggestions
// and replace it with what the user currently typed.
public Builder addTypedWordAndPreviousSuggestions(CharSequence typedWord,
SuggestedWords previousSuggestions) {
mWords.clear();
mSuggestedWordInfoList.clear();
final HashSet<String> alreadySeen = new HashSet<String>();
addWord(typedWord, null, false);
alreadySeen.add(typedWord.toString());
final int previousSize = previousSuggestions.size();
for (int pos = 1; pos < previousSize; pos++) {
final String prevWord = previousSuggestions.getWord(pos).toString();
// Filter out duplicate suggestion.
if (!alreadySeen.contains(prevWord)) {
addWord(prevWord, null, true);
alreadySeen.add(prevWord);
}
}
mTypedWordValid = false;
mHasMinimalSuggestion = false;
return this;
}
public SuggestedWords build() {
return new SuggestedWords(mWords, mTypedWordValid, mHasMinimalSuggestion,
mIsPunctuationSuggestions, mSuggestedWordInfoList);
}
public int size() {
return mWords.size();
}
public CharSequence getWord(int pos) {
return mWords.get(pos);
}
}
public static class SuggestedWordInfo {
private final CharSequence mDebugString;
private final boolean mPreviousSuggestedWord;
public SuggestedWordInfo() {
mDebugString = "";
mPreviousSuggestedWord = false;
}
public SuggestedWordInfo(CharSequence debugString, boolean previousSuggestedWord) {
mDebugString = debugString;
mPreviousSuggestedWord = previousSuggestedWord;
}
public String getDebugString() {
if (mDebugString == null) {
return "";
} else {
return mDebugString.toString();
}
}
public boolean isPreviousSuggestedWord () {
return mPreviousSuggestedWord;
}
}
}