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Merge "Delete surrogate together."

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This commit is contained in:
Jean Chalard 2013-08-14 09:06:07 +00:00 committed by Android (Google) Code Review
commit 4bc74d19ef
1 changed files with 9 additions and 15 deletions
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24
java/src/com/android/inputmethod/latin/LatinIME.java
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@ -1920,6 +1920,8 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
// This should never happen.
Log.e(TAG, "Backspace when we don't know the selection position");
}
final int lengthToDelete = Character.isSupplementaryCodePoint(
mConnection.getCodePointBeforeCursor()) ? 2 : 1;
if (mAppWorkAroundsUtils.isBeforeJellyBean()) {
// Backward compatibility mode. Before Jelly bean, the keyboard would simulate
// a hardware keyboard event on pressing enter or delete. This is bad for many
@ -1927,15 +1929,18 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
// relying on this behavior so we continue to support it for older apps.
sendDownUpKeyEventForBackwardCompatibility(KeyEvent.KEYCODE_DEL);
} else {
mConnection.deleteSurroundingText(1, 0);
mConnection.deleteSurroundingText(lengthToDelete, 0);
}
if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
ResearchLogger.latinIME_handleBackspace(1, true /* shouldUncommitLogUnit */);
ResearchLogger.latinIME_handleBackspace(lengthToDelete,
true /* shouldUncommitLogUnit */);
}
if (mDeleteCount > DELETE_ACCELERATE_AT) {
mConnection.deleteSurroundingText(1, 0);
final int lengthToDeleteAgain = Character.isSupplementaryCodePoint(
mConnection.getCodePointBeforeCursor()) ? 2 : 1;
mConnection.deleteSurroundingText(lengthToDeleteAgain, 0);
if (ProductionFlag.USES_DEVELOPMENT_ONLY_DIAGNOSTICS) {
ResearchLogger.latinIME_handleBackspace(1,
ResearchLogger.latinIME_handleBackspace(lengthToDeleteAgain,
true /* shouldUncommitLogUnit */);
}
}
@ -2730,17 +2735,6 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
break;
}
}
if (Constants.CODE_DELETE == primaryCode) {
// This is a stopgap solution to avoid leaving a high surrogate alone in a text view.
// In the future, we need to deprecate deteleSurroundingText() and have a surrogate
// pair-friendly way of deleting characters in InputConnection.
// TODO: use getCodePointBeforeCursor instead to improve performance
final CharSequence lastChar = mConnection.getTextBeforeCursor(1, 0);
if (!TextUtils.isEmpty(lastChar) && Character.isHighSurrogate(lastChar.charAt(0))) {
mConnection.deleteSurroundingText(1, 0);
}
}
}
// Hooks for hardware keyboard