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Don't commit a space before it's actually needed

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Bug: 15740318
Change-Id: Idad06cb2c18335a981d5e9dea7eccf5e7ea8f701
This commit is contained in:
Jean Chalard 2014-06-20 16:41:23 +09:00
parent 53f23234e3
commit a3f7a5840a
1 changed files with 57 additions and 54 deletions
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111
java/src/com/android/inputmethod/latin/inputlogic/InputLogic.java
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@ -728,13 +728,13 @@ public final class InputLogic {
mConnection.setComposingText(getTextWithUnderline(
mWordComposer.getTypedWord()), 1);
} else {
final boolean swapWeakSpace = maybeStripSpace(inputTransaction,
inputTransaction.mEvent.isSuggestionStripPress());
final boolean swapWeakSpace = tryStripSpaceAndReturnWhetherShouldSwapInstead(
inputTransaction, inputTransaction.mEvent.isSuggestionStripPress());
sendKeyCodePoint(settingsValues, codePoint);
if (swapWeakSpace && swapSwapperAndSpace(inputTransaction)) {
if (swapWeakSpace && trySwapSwapperAndSpace(inputTransaction)) {
mSpaceState = SpaceState.WEAK;
} else {
sendKeyCodePoint(settingsValues, codePoint);
}
// In case the "add to dictionary" hint was still displayed.
mSuggestionStripViewAccessor.dismissAddToDictionaryHint();
@ -779,7 +779,8 @@ public final class InputLogic {
}
}
final boolean swapWeakSpace = maybeStripSpace(inputTransaction, isFromSuggestionStrip);
final boolean swapWeakSpace = tryStripSpaceAndReturnWhetherShouldSwapInstead(
inputTransaction, isFromSuggestionStrip);
final boolean isInsideDoubleQuoteOrAfterDigit = Constants.CODE_DOUBLE_QUOTE == codePoint
&& mConnection.isInsideDoubleQuoteOrAfterDigit();
@ -803,14 +804,14 @@ public final class InputLogic {
promotePhantomSpace(settingsValues);
}
if (!shouldAvoidSendingCode) {
sendKeyCodePoint(settingsValues, codePoint);
}
if (Constants.CODE_SPACE == codePoint) {
if (maybeDoubleSpacePeriod(inputTransaction)) {
mSpaceState = SpaceState.DOUBLE;
} else if (!mSuggestedWords.isPunctuationSuggestions()) {
if (tryPerformDoubleSpacePeriod(inputTransaction)) {
mSpaceState = SpaceState.DOUBLE;
inputTransaction.setRequiresUpdateSuggestions();
} else if (swapWeakSpace && trySwapSwapperAndSpace(inputTransaction)) {
mSpaceState = SpaceState.SWAP_PUNCTUATION;
mSuggestionStripViewAccessor.setNeutralSuggestionStrip();
} else if (Constants.CODE_SPACE == codePoint) {
if (!mSuggestedWords.isPunctuationSuggestions()) {
mSpaceState = SpaceState.WEAK;
}
@ -818,12 +819,12 @@ public final class InputLogic {
if (wasComposingWord || mSuggestedWords.isEmpty()) {
inputTransaction.setRequiresUpdateSuggestions();
}
if (!shouldAvoidSendingCode) {
sendKeyCodePoint(settingsValues, codePoint);
}
} else {
if (swapWeakSpace) {
if (swapSwapperAndSpace(inputTransaction)) {
mSpaceState = SpaceState.SWAP_PUNCTUATION;
}
} else if ((SpaceState.PHANTOM == inputTransaction.mSpaceState
if ((SpaceState.PHANTOM == inputTransaction.mSpaceState
&& settingsValues.isUsuallyFollowedBySpace(codePoint))
|| (Constants.CODE_DOUBLE_QUOTE == codePoint
&& isInsideDoubleQuoteOrAfterDigit)) {
@ -841,6 +842,8 @@ public final class InputLogic {
mSpaceState = SpaceState.PHANTOM;
}
sendKeyCodePoint(settingsValues, codePoint);
// Set punctuation right away. onUpdateSelection will fire but tests whether it is
// already displayed or not, so it's okay.
mSuggestionStripViewAccessor.setNeutralSuggestionStrip();
@ -1008,17 +1011,16 @@ public final class InputLogic {
* @param inputTransaction The transaction in progress.
* @return true if the swap has been performed, false if it was prevented by preliminary checks.
*/
private boolean swapSwapperAndSpace(final InputTransaction inputTransaction) {
final CharSequence lastTwo = mConnection.getTextBeforeCursor(2, 0);
// It is guaranteed lastTwo.charAt(1) is a swapper - else this method is not called.
if (lastTwo != null && lastTwo.length() == 2 && lastTwo.charAt(0) == Constants.CODE_SPACE) {
mConnection.deleteSurroundingText(2, 0);
final String text = lastTwo.charAt(1) + " ";
mConnection.commitText(text, 1);
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
return true;
private boolean trySwapSwapperAndSpace(final InputTransaction inputTransaction) {
final int codePointBeforeCursor = mConnection.getCodePointBeforeCursor();
if (Constants.CODE_SPACE != codePointBeforeCursor) {
return false;
}
return false;
mConnection.deleteSurroundingText(1, 0);
final String text = inputTransaction.mEvent.getTextToCommit() + " ";
mConnection.commitText(text, 1);
inputTransaction.requireShiftUpdate(InputTransaction.SHIFT_UPDATE_NOW);
return true;
}
/*
@ -1027,8 +1029,8 @@ public final class InputLogic {
* @param isFromSuggestionStrip Whether this code point is coming from the suggestion strip.
* @return whether we should swap the space instead of removing it.
*/
private boolean maybeStripSpace(final InputTransaction inputTransaction,
final boolean isFromSuggestionStrip) {
private boolean tryStripSpaceAndReturnWhetherShouldSwapInstead(
final InputTransaction inputTransaction, final boolean isFromSuggestionStrip) {
final int codePoint = inputTransaction.mEvent.mCodePoint;
if (Constants.CODE_ENTER == codePoint &&
SpaceState.SWAP_PUNCTUATION == inputTransaction.mSpaceState) {
@ -1069,36 +1071,37 @@ public final class InputLogic {
* period-space sequence of characters. This typically happens when the user presses space
* twice in a row quickly.
* This method will check that the double-space-to-period is active in settings, that the
* two spaces have been input close enough together, and that the previous character allows
* for the transformation to take place. If all of these conditions are fulfilled, this
* method applies the transformation and returns true. Otherwise, it does nothing and
* returns false.
* two spaces have been input close enough together, that the typed character is a space
* and that the previous character allows for the transformation to take place. If all of
* these conditions are fulfilled, this method applies the transformation and returns true.
* Otherwise, it does nothing and returns false.
*
* @param inputTransaction The transaction in progress.
* @return true if we applied the double-space-to-period transformation, false otherwise.
*/
private boolean maybeDoubleSpacePeriod(final InputTransaction inputTransaction) {
if (!inputTransaction.mSettingsValues.mUseDoubleSpacePeriod) return false;
// This can't happen right now because we don't call this method when the code is not space
if (Constants.CODE_SPACE != inputTransaction.mEvent.mCodePoint) return false;
if (!isDoubleSpacePeriodCountdownActive(inputTransaction)) return false;
// We only do this when we see two spaces and an accepted code point before the cursor.
// The code point may be a surrogate pair but the two spaces may not, so we need 4 chars.
final CharSequence lastThree = mConnection.getTextBeforeCursor(4, 0);
if (null == lastThree) return false;
final int length = lastThree.length();
if (length < 3) return false;
if (lastThree.charAt(length - 1) != Constants.CODE_SPACE) return false;
if (lastThree.charAt(length - 2) != Constants.CODE_SPACE) return false;
// We know there are spaces in pos -1 and -2, and we have at least three chars.
// If we have only three chars, isSurrogatePairs can't return true as charAt(1) is a space,
// so this is fine.
private boolean tryPerformDoubleSpacePeriod(final InputTransaction inputTransaction) {
// Check the setting, the typed character and the countdown. If any of the conditions is
// not fulfilled, return false.
if (!inputTransaction.mSettingsValues.mUseDoubleSpacePeriod
|| Constants.CODE_SPACE != inputTransaction.mEvent.mCodePoint
|| !isDoubleSpacePeriodCountdownActive(inputTransaction)) {
return false;
}
// We only do this when we see one space and an accepted code point before the cursor.
// The code point may be a surrogate pair but the space may not, so we need 3 chars.
final CharSequence lastTwo = mConnection.getTextBeforeCursor(3, 0);
if (null == lastTwo) return false;
final int length = lastTwo.length();
if (length < 2) return false;
if (lastTwo.charAt(length - 1) != Constants.CODE_SPACE) return false;
// We know there is a space in pos -1, and we have at least two chars. If we have only two
// chars, isSurrogatePairs can't return true as charAt(1) is a space, so this is fine.
final int firstCodePoint =
Character.isSurrogatePair(lastThree.charAt(0), lastThree.charAt(1)) ?
Character.codePointAt(lastThree, 0) : lastThree.charAt(length - 3);
Character.isSurrogatePair(lastTwo.charAt(0), lastTwo.charAt(1)) ?
Character.codePointAt(lastTwo, length - 3) : lastTwo.charAt(length - 2);
if (canBeFollowedByDoubleSpacePeriod(firstCodePoint)) {
cancelDoubleSpacePeriodCountdown();
mConnection.deleteSurroundingText(2, 0);
mConnection.deleteSurroundingText(1, 0);
final String textToInsert = inputTransaction.mSettingsValues.mSpacingAndPunctuations
.mSentenceSeparatorAndSpace;
mConnection.commitText(textToInsert, 1);