am 4bc74d19: Merge "Delete surrogate together." (9c396a24) · Commits · e / os / android_packages_inputmethods_LatinIME

java/src/com/android/inputmethod/latin/LatinIME.java

+9 −15

Original line number	Diff line number	Diff line
		@@ -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