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Merge "Fix a bug where the cache would be out of sync"

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This commit is contained in:
Jean Chalard 2014-02-18 10:58:50 +00:00 committed by Android (Google) Code Review
commit 28e0b24965
2 changed files with 54 additions and 1 deletions
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18
java/src/com/android/inputmethod/latin/RichInputConnection.java
View file

@ -230,6 +230,9 @@ public final class RichInputConnection {
public void finishComposingText() {
if (DEBUG_BATCH_NESTING) checkBatchEdit();
if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
// TODO: this is not correct! The cursor is not necessarily after the composing text.
// In the practice right now this is only called when input ends so it will be reset so
// it works, but it's wrong and should be fixed.
mCommittedTextBeforeComposingText.append(mComposingText);
mComposingText.setLength(0);
if (null != mIC) {
@ -244,6 +247,9 @@ public final class RichInputConnection {
if (DEBUG_BATCH_NESTING) checkBatchEdit();
if (DEBUG_PREVIOUS_TEXT) checkConsistencyForDebug();
mCommittedTextBeforeComposingText.append(text);
// TODO: the following is exceedingly error-prone. Right now when the cursor is in the
// middle of the composing word mComposingText only holds the part of the composing text
// that is before the cursor, so this actually works, but it's terribly confusing. Fix this.
mExpectedSelStart += text.length() - mComposingText.length();
mExpectedSelEnd = mExpectedSelStart;
mComposingText.setLength(0);
@ -347,6 +353,9 @@ public final class RichInputConnection {
public void deleteSurroundingText(final int beforeLength, final int afterLength) {
if (DEBUG_BATCH_NESTING) checkBatchEdit();
// TODO: the following is incorrect if the cursor is not immediately after the composition.
// Right now we never come here in this case because we reset the composing state before we
// come here in this case, but we need to fix this.
final int remainingChars = mComposingText.length() - beforeLength;
if (remainingChars >= 0) {
mComposingText.setLength(remainingChars);
@ -447,8 +456,12 @@ public final class RichInputConnection {
getTextBeforeCursor(Constants.EDITOR_CONTENTS_CACHE_SIZE + (end - start), 0);
mCommittedTextBeforeComposingText.setLength(0);
if (!TextUtils.isEmpty(textBeforeCursor)) {
// The cursor is not necessarily at the end of the composing text, but we have its
// position in mExpectedSelStart and mExpectedSelEnd. In this case we want the start
// of the text, so we should use mExpectedSelStart. In other words, the composing
// text starts (mExpectedSelStart - start) characters before the end of textBeforeCursor
final int indexOfStartOfComposingText =
Math.max(textBeforeCursor.length() - (end - start), 0);
Math.max(textBeforeCursor.length() - (mExpectedSelStart - start), 0);
mComposingText.append(textBeforeCursor.subSequence(indexOfStartOfComposingText,
textBeforeCursor.length()));
mCommittedTextBeforeComposingText.append(
@ -544,6 +557,9 @@ public final class RichInputConnection {
final int checkLength = LOOKBACK_CHARACTER_NUM - 1;
final String reference = prev.length() <= checkLength ? prev.toString()
: prev.subSequence(prev.length() - checkLength, prev.length()).toString();
// TODO: right now the following works because mComposingText holds the part of the
// composing text that is before the cursor, but this is very confusing. We should
// fix it.
final StringBuilder internal = new StringBuilder()
.append(mCommittedTextBeforeComposingText).append(mComposingText);
if (internal.length() > checkLength) {

37
tests/src/com/android/inputmethod/latin/InputLogicTests.java
View file

@ -385,4 +385,41 @@ public class InputLogicTests extends InputTestsBase {
final SuggestedWords suggestedWords = mLatinIME.getSuggestedWordsForTest();
assertEquals("no prediction after period", 0, suggestedWords.size());
}
public void testPredictionsAfterRecorrection() {
final String PREFIX = "A ";
final String WORD_TO_TYPE = "Barack";
final String FIRST_NON_TYPED_SUGGESTION = "Barrack";
final int endOfPrefix = PREFIX.length();
final int endOfWord = endOfPrefix + WORD_TO_TYPE.length();
final int endOfSuggestion = endOfPrefix + FIRST_NON_TYPED_SUGGESTION.length();
final int indexForManualCursor = endOfPrefix + 3; // +3 because it's after "Bar" in "Barack"
type(PREFIX);
mLatinIME.onUpdateSelection(0, 0, endOfPrefix, endOfPrefix, -1, -1);
type(WORD_TO_TYPE);
pickSuggestionManually(1, FIRST_NON_TYPED_SUGGESTION);
mLatinIME.onUpdateSelection(endOfPrefix, endOfPrefix, endOfSuggestion, endOfSuggestion,
-1, -1);
runMessages();
type(" ");
mLatinIME.onUpdateSelection(endOfSuggestion, endOfSuggestion,
endOfSuggestion + 1, endOfSuggestion + 1, -1, -1);
sleep(DELAY_TO_WAIT_FOR_PREDICTIONS);
runMessages();
// Simulate a manual cursor move
mInputConnection.setSelection(indexForManualCursor, indexForManualCursor);
mLatinIME.onUpdateSelection(endOfSuggestion + 1, endOfSuggestion + 1,
indexForManualCursor, indexForManualCursor, -1, -1);
sleep(DELAY_TO_WAIT_FOR_PREDICTIONS);
runMessages();
pickSuggestionManually(0, WORD_TO_TYPE);
mLatinIME.onUpdateSelection(indexForManualCursor, indexForManualCursor,
endOfWord, endOfWord, -1, -1);
sleep(DELAY_TO_WAIT_FOR_PREDICTIONS);
runMessages();
// Test the first prediction is displayed
final SuggestedWords suggestedWords = mLatinIME.getSuggestedWords();
assertEquals("predictions after recorrection", "Obama",
suggestedWords.size() > 0 ? suggestedWords.getWord(0) : null);
}
}