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/*
* Copyright (C) 2012 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.spellcheck;
import android.text.TextUtils;
import android.util.Log;
import android.view.textservice.SentenceSuggestionsInfo;
import android.view.textservice.SuggestionsInfo;
import android.view.textservice.TextInfo;
import com.android.inputmethod.latin.CollectionUtils;
import java.util.ArrayList;
public final class AndroidSpellCheckerSession extends AndroidWordLevelSpellCheckerSession {
private static final String TAG = AndroidSpellCheckerSession.class.getSimpleName();
private static final boolean DBG = false;
private final static String[] EMPTY_STRING_ARRAY = new String[0];
public AndroidSpellCheckerSession(AndroidSpellCheckerService service) {
super(service);
}
private SentenceSuggestionsInfo fixWronglyInvalidatedWordWithSingleQuote(TextInfo ti,
SentenceSuggestionsInfo ssi) {
final String typedText = ti.getText();
if (!typedText.contains(AndroidSpellCheckerService.SINGLE_QUOTE)) {
return null;
}
final int N = ssi.getSuggestionsCount();
final ArrayList<Integer> additionalOffsets = CollectionUtils.newArrayList();
final ArrayList<Integer> additionalLengths = CollectionUtils.newArrayList();
final ArrayList<SuggestionsInfo> additionalSuggestionsInfos =
CollectionUtils.newArrayList();
String currentWord = null;
for (int i = 0; i < N; ++i) {
final SuggestionsInfo si = ssi.getSuggestionsInfoAt(i);
final int flags = si.getSuggestionsAttributes();
if ((flags & SuggestionsInfo.RESULT_ATTR_IN_THE_DICTIONARY) == 0) {
continue;
}
final int offset = ssi.getOffsetAt(i);
final int length = ssi.getLengthAt(i);
final String subText = typedText.substring(offset, offset + length);
final String prevWord = currentWord;
currentWord = subText;
if (!subText.contains(AndroidSpellCheckerService.SINGLE_QUOTE)) {
continue;
}
final String[] splitTexts =
subText.split(AndroidSpellCheckerService.SINGLE_QUOTE, -1);
if (splitTexts == null || splitTexts.length <= 1) {
continue;
}
final int splitNum = splitTexts.length;
for (int j = 0; j < splitNum; ++j) {
final String splitText = splitTexts[j];
if (TextUtils.isEmpty(splitText)) {
continue;
}
if (mSuggestionsCache.getSuggestionsFromCache(splitText, prevWord) == null) {
continue;
}
final int newLength = splitText.length();
// Neither RESULT_ATTR_IN_THE_DICTIONARY nor RESULT_ATTR_LOOKS_LIKE_TYPO
final int newFlags = 0;
final SuggestionsInfo newSi =
new SuggestionsInfo(newFlags, EMPTY_STRING_ARRAY);
newSi.setCookieAndSequence(si.getCookie(), si.getSequence());
if (DBG) {
Log.d(TAG, "Override and remove old span over: " + splitText + ", "
+ offset + "," + newLength);
}
additionalOffsets.add(offset);
additionalLengths.add(newLength);
additionalSuggestionsInfos.add(newSi);
}
}
final int additionalSize = additionalOffsets.size();
if (additionalSize <= 0) {
return null;
}
final int suggestionsSize = N + additionalSize;
final int[] newOffsets = new int[suggestionsSize];
final int[] newLengths = new int[suggestionsSize];
final SuggestionsInfo[] newSuggestionsInfos = new SuggestionsInfo[suggestionsSize];
int i;
for (i = 0; i < N; ++i) {
newOffsets[i] = ssi.getOffsetAt(i);
newLengths[i] = ssi.getLengthAt(i);
newSuggestionsInfos[i] = ssi.getSuggestionsInfoAt(i);
}
for (; i < suggestionsSize; ++i) {
newOffsets[i] = additionalOffsets.get(i - N);
newLengths[i] = additionalLengths.get(i - N);
newSuggestionsInfos[i] = additionalSuggestionsInfos.get(i - N);
}
return new SentenceSuggestionsInfo(newSuggestionsInfos, newOffsets, newLengths);
}
@Override
public SentenceSuggestionsInfo[] onGetSentenceSuggestionsMultiple(TextInfo[] textInfos,
int suggestionsLimit) {
final SentenceSuggestionsInfo[] retval =
super.onGetSentenceSuggestionsMultiple(textInfos, suggestionsLimit);
if (retval == null || retval.length != textInfos.length) {
return retval;
}
for (int i = 0; i < retval.length; ++i) {
final SentenceSuggestionsInfo tempSsi =
fixWronglyInvalidatedWordWithSingleQuote(textInfos[i], retval[i]);
if (tempSsi != null) {
retval[i] = tempSsi;
}
}
return retval;
}
@Override
public SuggestionsInfo[] onGetSuggestionsMultiple(TextInfo[] textInfos,
int suggestionsLimit, boolean sequentialWords) {
final int length = textInfos.length;
final SuggestionsInfo[] retval = new SuggestionsInfo[length];
for (int i = 0; i < length; ++i) {
final String prevWord;
if (sequentialWords && i > 0) {
final String prevWordCandidate = textInfos[i - 1].getText();
// Note that an empty string would be used to indicate the initial word
// in the future.
prevWord = TextUtils.isEmpty(prevWordCandidate) ? null : prevWordCandidate;
} else {
prevWord = null;
}
retval[i] = onGetSuggestions(textInfos[i], prevWord, suggestionsLimit);
retval[i].setCookieAndSequence(textInfos[i].getCookie(),
textInfos[i].getSequence());
}
return retval;
}
}
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