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Remove duplicates from the spell checker suggestions.

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Bug: 5175740
Change-Id: I592401b3b8c3074d70e06dc3a9919cc3cb47ba49
This commit is contained in:
Jean Chalard 2011-08-22 18:03:42 +09:00
parent 5d4c5692f1
commit 6b166a1933
1 changed files with 21 additions and 11 deletions
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32
java/src/com/android/inputmethod/latin/spellcheck/AndroidSpellCheckerService.java
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@ -37,6 +37,7 @@ import com.android.inputmethod.latin.UserDictionary;
import com.android.inputmethod.latin.Utils;
import com.android.inputmethod.latin.WordComposer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Locale;
@ -51,8 +52,9 @@ public class AndroidSpellCheckerService extends SpellCheckerService {
private static final boolean DBG = false;
private static final int POOL_SIZE = 2;
private final static String[] EMPTY_STRING_ARRAY = new String[0];
private final static SuggestionsInfo EMPTY_SUGGESTIONS_INFO =
new SuggestionsInfo(0, new String[0]);
new SuggestionsInfo(0, EMPTY_STRING_ARRAY);
private Map<String, DictionaryPool> mDictionaryPools =
Collections.synchronizedMap(new TreeMap<String, DictionaryPool>());
private Map<String, Dictionary> mUserDictionaries =
@ -65,14 +67,15 @@ public class AndroidSpellCheckerService extends SpellCheckerService {
private static class SuggestionsGatherer implements WordCallback {
private final int DEFAULT_SUGGESTION_LENGTH = 16;
private final String[] mSuggestions;
private final ArrayList<CharSequence> mSuggestions;
private final int[] mScores;
private final int mMaxLength;
private int mLength = 0;
private boolean mSeenSuggestions = false;
SuggestionsGatherer(final int maxLength) {
mMaxLength = maxLength;
mSuggestions = new String[mMaxLength];
mSuggestions = new ArrayList<CharSequence>(maxLength + 1);
mScores = new int[mMaxLength];
}
@ -84,30 +87,37 @@ public class AndroidSpellCheckerService extends SpellCheckerService {
// if it doesn't. See documentation for binarySearch.
final int insertIndex = positionIndex >= 0 ? positionIndex : -positionIndex - 1;
mSeenSuggestions = true;
if (mLength < mMaxLength) {
final int copyLen = mLength - insertIndex;
++mLength;
System.arraycopy(mScores, insertIndex, mScores, insertIndex + 1, copyLen);
System.arraycopy(mSuggestions, insertIndex, mSuggestions, insertIndex + 1, copyLen);
mSuggestions.add(insertIndex, new String(word, wordOffset, wordLength));
} else {
if (insertIndex == 0) return true;
System.arraycopy(mScores, 1, mScores, 0, insertIndex);
System.arraycopy(mSuggestions, 1, mSuggestions, 0, insertIndex);
mSuggestions.add(insertIndex, new String(word, wordOffset, wordLength));
mSuggestions.remove(0);
}
mScores[insertIndex] = score;
mSuggestions[insertIndex] = new String(word, wordOffset, wordLength);
return true;
}
public String[] getGatheredSuggestions() {
if (0 == mLength) return null;
if (!mSeenSuggestions) return null;
if (0 == mLength) return EMPTY_STRING_ARRAY;
final String[] results = new String[mLength];
for (int i = mLength - 1; i >= 0; --i) {
results[mLength - i - 1] = mSuggestions[i];
if (DBG) {
if (mLength != mSuggestions.size()) {
Log.e(TAG, "Suggestion size is not the same as stored mLength");
}
}
return results;
Collections.reverse(mSuggestions);
Utils.removeDupes(mSuggestions);
// This returns a String[], while toArray() returns an Object[] which cannot be cast
// into a String[].
return mSuggestions.toArray(EMPTY_STRING_ARRAY);
}
}