private void showKeyPreviewAndUpdateKey(int keyIndex) {
updateKey(keyIndex);
// The modifier key, such as shift key, should not be shown as preview when multi-touch is
// supported. On the other hand, if multi-touch is not supported, the modifier key should
// be shown as preview.
if (mHasDistinctMultitouch && isModifier()) {
mProxy.showPreview(NOT_A_KEY, this);
} else {
mProxy.showPreview(keyIndex, this);
}
}
public void updateKey(int keyIndex) {
if (mKeyAlreadyProcessed) return;
int oldKeyIndex = mPreviousKey;
mPreviousKey = keyIndex;
if (keyIndex != oldKeyIndex) {
if (isValidKeyIndex(oldKeyIndex)) {
// if new key index is not a key, old key was just released inside of the key.
final boolean inside = (keyIndex == NOT_A_KEY);
mKeys[oldKeyIndex].onReleased(inside);
mProxy.invalidateKey(mKeys[oldKeyIndex]);
}
if (isValidKeyIndex(keyIndex)) {
mKeys[keyIndex].onPressed();
mProxy.invalidateKey(mKeys[keyIndex]);
}
}
}
public void onCancelEvent(int x, int y, long eventTime) {
if (DEBUG) debugLog("onCancelEvt:", x, y);
mHandler.cancelKeyTimers();
mHandler.cancelPopupPreview();
showKeyPreviewAndUpdateKey(NOT_A_KEY);
mIsInSlidingKeyInput = false;
int keyIndex = mKeyState.getKeyIndex();
if (isValidKeyIndex(keyIndex)) mProxy.invalidateKey(mKeys[keyIndex]);
}
public PointerTracker(
int id,
UIHandler handler,
KeyDetector keyDetector,
UIProxy proxy,
Resources res,
boolean slideKeyHack) {
if (proxy == null || handler == null || keyDetector == null) throw new NullPointerException();
mPointerId = id;
mProxy = proxy;
mHandler = handler;
mKeyDetector = keyDetector;
mKeyboardSwitcher = KeyboardSwitcher.getInstance();
mKeyState = new KeyState(keyDetector);
mHasDistinctMultitouch = proxy.hasDistinctMultitouch();
mDelayBeforeKeyRepeatStart = res.getInteger(R.integer.config_delay_before_key_repeat_start);
mMultiTapKeyTimeout = res.getInteger(R.integer.config_multi_tap_key_timeout);
sSlideKeyHack = slideKeyHack;
resetMultiTap();
}
public void onUpEvent(int x, int y, long eventTime) {
if (DEBUG) debugLog("onUpEvent :", x, y);
mHandler.cancelKeyTimers();
mHandler.cancelPopupPreview();
showKeyPreviewAndUpdateKey(NOT_A_KEY);
mIsInSlidingKeyInput = false;
sendSlideKeys();
if (mKeyAlreadyProcessed) return;
int keyIndex = mKeyState.onUpKey(x, y);
if (isMinorMoveBounce(x, y, keyIndex)) {
// Use previous fixed key index and coordinates.
keyIndex = mKeyState.getKeyIndex();
x = mKeyState.getKeyX();
y = mKeyState.getKeyY();
}
if (!mIsRepeatableKey) {
detectAndSendKey(keyIndex, x, y, eventTime);
}
if (isValidKeyIndex(keyIndex)) mProxy.invalidateKey(mKeys[keyIndex]);
}