Refactor KeyDebounce class
This change moves the following methods into KeyDebounce class. - MotionEvent handling methods (onDownEvent etc.). - Keyboard action event generator method (detectAndSendKey). - Multi-tap key support methods (resetMultiTap etc.). - Key preview text generator method (getPreviewText). The change that makes KeyDebounce a top-level class will follow. Bug: 2910379 Change-Id: I1526c0461e247d97f0c4b3bd580330f137c787bemain
Tadashi G. Takaoka
parent
dc406a2db6
commit
b57b478569
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@ -188,7 +188,6 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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private int mPopupPreviewX;
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private int mPopupPreviewY;
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private int mWindowY;
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private final StringBuilder mPreviewLabel = new StringBuilder(1);
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// Popup mini keyboard
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private PopupWindow mPopupKeyboard;
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@ -206,18 +205,9 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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private final KeyDebouncer mDebouncer;
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private final float mDebounceHysteresis;
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private int mCurrentKey = NOT_A_KEY;
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private int mStartX;
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private int mStartY;
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private final ProximityKeyDetector mProximityKeyDetector = new ProximityKeyDetector();
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// For multi-tap
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private int mLastSentIndex;
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private int mTapCount;
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private long mLastTapTime;
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private boolean mInMultiTap;
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// Variables for dealing with multiple pointers
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private int mOldPointerCount = 1;
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private int mOldPointerX;
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@ -259,24 +249,32 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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public void handleMessage(Message msg) {
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switch (msg.what) {
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case MSG_POPUP_PREVIEW:
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showKey((Key)msg.obj);
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showKey(msg.arg1, (KeyDebouncer)msg.obj);
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break;
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case MSG_DISMISS_PREVIEW:
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mPreviewText.setVisibility(INVISIBLE);
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break;
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case MSG_REPEAT_KEY:
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repeatKey(msg.arg1);
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startKeyRepeatTimer(REPEAT_INTERVAL, msg.arg1);
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case MSG_REPEAT_KEY: {
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final KeyDebouncer debouncer = (KeyDebouncer)msg.obj;
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debouncer.repeatKey(msg.arg1);
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startKeyRepeatTimer(REPEAT_INTERVAL, msg.arg1, debouncer);
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break;
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}
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case MSG_LONGPRESS_KEY:
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openPopupIfRequired(msg.arg1);
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break;
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}
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}
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public void popupPreview(Key key, long delay) {
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public void popupPreview(long delay, int keyIndex, KeyDebouncer debouncer) {
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removeMessages(MSG_POPUP_PREVIEW);
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sendMessageDelayed(obtainMessage(MSG_POPUP_PREVIEW, key), delay);
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if (mPreviewPopup.isShowing() && mPreviewText.getVisibility() == VISIBLE) {
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// Show right away, if it's already visible and finger is moving around
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showKey(keyIndex, debouncer);
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} else {
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sendMessageDelayed(obtainMessage(MSG_POPUP_PREVIEW, keyIndex, 0, debouncer),
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delay);
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}
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}
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public void cancelPopupPreview() {
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@ -284,16 +282,18 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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}
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public void dismissPreview(long delay) {
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sendMessageDelayed(obtainMessage(MSG_DISMISS_PREVIEW), delay);
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if (mPreviewPopup.isShowing()) {
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sendMessageDelayed(obtainMessage(MSG_DISMISS_PREVIEW), delay);
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}
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}
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public void cancelDismissPreview() {
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removeMessages(MSG_DISMISS_PREVIEW);
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}
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public void startKeyRepeatTimer(long delay, int keyIndex) {
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public void startKeyRepeatTimer(long delay, int keyIndex, KeyDebouncer debouncer) {
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mInKeyRepeat = true;
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sendMessageDelayed(obtainMessage(MSG_REPEAT_KEY, keyIndex, 0), delay);
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sendMessageDelayed(obtainMessage(MSG_REPEAT_KEY, keyIndex, 0, debouncer), delay);
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}
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public void cancelKeyRepeatTimer() {
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@ -326,15 +326,28 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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}
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};
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// TODO:nn Rename this class to PointerTracker when this becomes a top-level class.
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public static class KeyDebouncer {
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public interface UIProxy {
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public void invalidateKey(Key key);
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public void showPreview(int keyIndex, KeyDebouncer debouncer);
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// TODO: These methods might be temporary.
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public void dismissPopupKeyboard();
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public boolean isMiniKeyboardOnScreen();
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}
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private final UIProxy mProxy;
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private final UIHandler mHandler;
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private final ProximityKeyDetector mKeyDetector;
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private OnKeyboardActionListener mListener;
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private Key[] mKeys;
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private int mKeyDebounceThresholdSquared = -1;
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private int mCurrentKey = NOT_A_KEY;
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private int mStartX;
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private int mStartY;
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// for move de-bouncing
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private int mLastCodeX;
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private int mLastCodeY;
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@ -347,13 +360,27 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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private long mLastMoveTime;
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private long mCurrentKeyTime;
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// For multi-tap
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private int mLastSentIndex;
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private int mTapCount;
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private long mLastTapTime;
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private boolean mInMultiTap;
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private final StringBuilder mPreviewLabel = new StringBuilder(1);
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// pressed key
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private int mPreviousKey;
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public KeyDebouncer(UIProxy proxy) {
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if (proxy == null)
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public KeyDebouncer(UIHandler handler, ProximityKeyDetector keyDetector, UIProxy proxy) {
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if (proxy == null || handler == null || keyDetector == null)
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throw new NullPointerException();
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mProxy = proxy;
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mHandler = handler;
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mKeyDetector = keyDetector;
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resetMultiTap();
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}
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public void setOnKeyboardActionListener(OnKeyboardActionListener listener) {
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mListener = listener;
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}
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public void setKeyboard(Key[] keys, float hysteresisPixel) {
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@ -363,6 +390,10 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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mKeyDebounceThresholdSquared = (int)(hysteresisPixel * hysteresisPixel);
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}
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public Key getKey(int keyIndex) {
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return (keyIndex >= 0 && keyIndex < mKeys.length) ? mKeys[keyIndex] : null;
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}
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public void updateKey(int keyIndex) {
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int oldKeyIndex = mPreviousKey;
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mPreviousKey = keyIndex;
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@ -380,42 +411,148 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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}
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}
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public int getLastCodeX() {
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return mLastCodeX;
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public void onModifiedTouchEvent(int action, int touchX, int touchY, long eventTime) {
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switch (action) {
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case MotionEvent.ACTION_DOWN:
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onDownEvent(touchX, touchY, eventTime);
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break;
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case MotionEvent.ACTION_MOVE:
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onMoveEvent(touchX, touchY, eventTime);
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break;
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case MotionEvent.ACTION_UP:
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onUpEvent(touchX, touchY, eventTime);
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break;
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case MotionEvent.ACTION_CANCEL:
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onCancelEvent(touchX, touchY, eventTime);
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break;
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}
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}
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public int getLastCodeY() {
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return mLastCodeY;
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public void onDownEvent(int touchX, int touchY, long eventTime) {
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int keyIndex = mKeyDetector.getKeyIndexAndNearbyCodes(touchX, touchY, null);
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mCurrentKey = keyIndex;
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mStartX = touchX;
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mStartY = touchY;
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startMoveDebouncing(touchX, touchY);
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startTimeDebouncing(eventTime);
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checkMultiTap(eventTime, keyIndex);
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if (mListener != null)
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mListener.onPress(keyIndex != NOT_A_KEY ? mKeys[keyIndex].codes[0] : 0);
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if (keyIndex >= 0 && mKeys[keyIndex].repeatable) {
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repeatKey(keyIndex);
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mHandler.startKeyRepeatTimer(REPEAT_START_DELAY, keyIndex, this);
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}
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if (keyIndex != NOT_A_KEY) {
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mHandler.startLongPressTimer(keyIndex, LONGPRESS_TIMEOUT);
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}
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showKeyPreviewAndUpdateKey(keyIndex);
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updateMoveDebouncing(touchX, touchY);
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}
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public int getLastX() {
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public void onMoveEvent(int touchX, int touchY, long eventTime) {
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int keyIndex = mKeyDetector.getKeyIndexAndNearbyCodes(touchX, touchY, null);
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if (keyIndex != NOT_A_KEY) {
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if (mCurrentKey == NOT_A_KEY) {
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updateTimeDebouncing(eventTime);
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mCurrentKey = keyIndex;
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mHandler.startLongPressTimer(keyIndex, LONGPRESS_TIMEOUT);
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} else if (isMinorMoveBounce(touchX, touchY, keyIndex, mCurrentKey)) {
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updateTimeDebouncing(eventTime);
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} else {
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resetMultiTap();
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resetTimeDebouncing(eventTime, mCurrentKey);
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resetMoveDebouncing();
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mCurrentKey = keyIndex;
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mHandler.startLongPressTimer(keyIndex, LONGPRESS_TIMEOUT);
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}
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} else {
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mHandler.cancelLongPressTimer();
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}
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/*
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* While time debouncing is in effect, mCurrentKey holds the new key and mDebouncer
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* holds the last key. At ACTION_UP event if time debouncing will be in effect
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* eventually, the last key should be sent as the result. In such case mCurrentKey
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* should not be showed as popup preview.
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*/
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showKeyPreviewAndUpdateKey(isMinorTimeBounce() ? mLastKey : mCurrentKey);
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updateMoveDebouncing(touchX, touchY);
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}
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public void onUpEvent(int touchX, int touchY, long eventTime) {
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int keyIndex = mKeyDetector.getKeyIndexAndNearbyCodes(touchX, touchY, null);
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boolean wasInKeyRepeat = mHandler.isInKeyRepeat();
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mHandler.cancelKeyTimers();
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mHandler.cancelPopupPreview();
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if (isMinorMoveBounce(touchX, touchY, keyIndex, mCurrentKey)) {
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updateTimeDebouncing(eventTime);
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} else {
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resetMultiTap();
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resetTimeDebouncing(eventTime, mCurrentKey);
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mCurrentKey = keyIndex;
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}
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if (isMinorTimeBounce()) {
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mCurrentKey = mLastKey;
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touchX = mLastCodeX;
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touchY = mLastCodeY;
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}
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showKeyPreviewAndUpdateKey(NOT_A_KEY);
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// If we're not on a repeating key (which sends on a DOWN event)
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if (!wasInKeyRepeat && !mProxy.isMiniKeyboardOnScreen()) {
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detectAndSendKey(mCurrentKey, touchX, touchY, eventTime);
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}
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if (keyIndex != NOT_A_KEY)
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mProxy.invalidateKey(mKeys[keyIndex]);
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}
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public void onCancelEvent(int touchX, int touchY, long eventTime) {
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mHandler.cancelKeyTimers();
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mHandler.cancelPopupPreview();
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mProxy.dismissPopupKeyboard();
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showKeyPreviewAndUpdateKey(NOT_A_KEY);
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if (mCurrentKey != NOT_A_KEY)
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mProxy.invalidateKey(mKeys[mCurrentKey]);
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}
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public void repeatKey(int keyIndex) {
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Key key = mKeys[keyIndex];
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// While key is repeating, because there is no need to handle multi-tap key, we can pass
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// -1 as eventTime argument.
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detectAndSendKey(keyIndex, key.x, key.y, -1);
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}
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// These package scope methods are only for debugging purpose.
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/* package */ int getStartX() {
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return mStartX;
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}
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/* package */ int getStartY() {
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return mStartY;
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}
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/* package */ int getLastX() {
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return mLastX;
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}
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public int getLastY() {
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/* package */ int getLastY() {
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return mLastY;
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}
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public int getLastKey() {
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return mLastKey;
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}
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public void startMoveDebouncing(int x, int y) {
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private void startMoveDebouncing(int x, int y) {
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mLastCodeX = x;
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mLastCodeY = y;
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}
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public void updateMoveDebouncing(int x, int y) {
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private void updateMoveDebouncing(int x, int y) {
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mLastX = x;
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mLastY = y;
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}
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public void resetMoveDebouncing() {
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private void resetMoveDebouncing() {
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mLastCodeX = mLastX;
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mLastCodeY = mLastY;
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}
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public boolean isMinorMoveBounce(int x, int y, int newKey, int curKey) {
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private boolean isMinorMoveBounce(int x, int y, int newKey, int curKey) {
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if (mKeys == null || mKeyDebounceThresholdSquared < 0)
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throw new IllegalStateException("keyboard and/or hysteresis not set");
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if (newKey == curKey) {
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@ -440,29 +577,115 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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return dx * dx + dy * dy;
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}
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public void startTimeDebouncing(long eventTime) {
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private void startTimeDebouncing(long eventTime) {
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mLastKey = NOT_A_KEY;
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mLastKeyTime = 0;
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mCurrentKeyTime = 0;
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mLastMoveTime = eventTime;
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}
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public void updateTimeDebouncing(long eventTime) {
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private void updateTimeDebouncing(long eventTime) {
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mCurrentKeyTime += eventTime - mLastMoveTime;
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mLastMoveTime = eventTime;
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}
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public void resetTimeDebouncing(long eventTime, int currentKey) {
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private void resetTimeDebouncing(long eventTime, int currentKey) {
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mLastKey = currentKey;
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mLastKeyTime = mCurrentKeyTime + eventTime - mLastMoveTime;
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mCurrentKeyTime = 0;
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mLastMoveTime = eventTime;
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}
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public boolean isMinorTimeBounce() {
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private boolean isMinorTimeBounce() {
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return mCurrentKeyTime < mLastKeyTime && mCurrentKeyTime < KEY_DEBOUNCE_TIME
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&& mLastKey != NOT_A_KEY;
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}
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private void showKeyPreviewAndUpdateKey(int keyIndex) {
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updateKey(keyIndex);
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mProxy.showPreview(keyIndex, this);
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}
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private void detectAndSendKey(int index, int x, int y, long eventTime) {
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if (index != NOT_A_KEY && index < mKeys.length) {
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final Key key = mKeys[index];
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OnKeyboardActionListener listener = mListener;
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if (key.text != null) {
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if (listener != null) {
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listener.onText(key.text);
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listener.onRelease(NOT_A_KEY);
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}
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} else {
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int code = key.codes[0];
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//TextEntryState.keyPressedAt(key, x, y);
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int[] codes = mKeyDetector.newCodeArray();
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mKeyDetector.getKeyIndexAndNearbyCodes(x, y, codes);
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// Multi-tap
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if (mInMultiTap) {
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if (mTapCount != -1) {
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mListener.onKey(Keyboard.KEYCODE_DELETE, KEY_DELETE, x, y);
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} else {
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mTapCount = 0;
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}
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code = key.codes[mTapCount];
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}
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/*
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* Swap the first and second values in the codes array if the primary code is not
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* the first value but the second value in the array. This happens when key
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* debouncing is in effect.
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*/
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if (codes.length >= 2 && codes[0] != code && codes[1] == code) {
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codes[1] = codes[0];
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codes[0] = code;
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}
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if (listener != null) {
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listener.onKey(code, codes, x, y);
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listener.onRelease(code);
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}
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}
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mLastSentIndex = index;
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mLastTapTime = eventTime;
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}
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}
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/**
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* Handle multi-tap keys by producing the key label for the current multi-tap state.
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*/
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public CharSequence getPreviewText(Key key) {
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if (mInMultiTap) {
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// Multi-tap
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mPreviewLabel.setLength(0);
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mPreviewLabel.append((char) key.codes[mTapCount < 0 ? 0 : mTapCount]);
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return mPreviewLabel;
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} else {
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return key.label;
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}
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}
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private void resetMultiTap() {
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mLastSentIndex = NOT_A_KEY;
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mTapCount = 0;
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mLastTapTime = -1;
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mInMultiTap = false;
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}
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private void checkMultiTap(long eventTime, int keyIndex) {
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if (keyIndex == NOT_A_KEY) return;
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Key key = mKeys[keyIndex];
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if (key.codes.length > 1) {
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mInMultiTap = true;
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if (eventTime < mLastTapTime + MULTITAP_INTERVAL && keyIndex == mLastSentIndex) {
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mTapCount = (mTapCount + 1) % key.codes.length;
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return;
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} else {
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mTapCount = -1;
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return;
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}
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}
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if (eventTime > mLastTapTime + MULTITAP_INTERVAL || keyIndex != mLastSentIndex) {
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resetMultiTap();
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}
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}
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}
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public LatinKeyboardBaseView(Context context, AttributeSet attrs) {
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@ -573,7 +796,6 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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// TODO: Refer frameworks/base/core/res/res/values/config.xml
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mDisambiguateSwipe = res.getBoolean(R.bool.config_swipeDisambiguation);
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mDebounceHysteresis = res.getDimension(R.dimen.key_debounce_hysteresis_distance);
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resetMultiTap();
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GestureDetector.SimpleOnGestureListener listener =
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new GestureDetector.SimpleOnGestureListener() {
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@ -620,15 +842,28 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
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// TODO: This anonymous interface is temporary until KeyDebouncer becomes top-level class.
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// In the future LatinKeyboardBaseView class will implement UIProxy.
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mDebouncer = new KeyDebouncer(new KeyDebouncer.UIProxy() {
|
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mDebouncer = new KeyDebouncer(mHandler, mProximityKeyDetector, new KeyDebouncer.UIProxy() {
|
||||
public void invalidateKey(Key key) {
|
||||
LatinKeyboardBaseView.this.invalidateKey(key);
|
||||
}
|
||||
|
||||
public void showPreview(int keyIndex, KeyDebouncer debouncer) {
|
||||
LatinKeyboardBaseView.this.showPreview(keyIndex, debouncer);
|
||||
}
|
||||
|
||||
public void dismissPopupKeyboard() {
|
||||
LatinKeyboardBaseView.this.dismissPopupKeyboard();
|
||||
}
|
||||
|
||||
public boolean isMiniKeyboardOnScreen() {
|
||||
return LatinKeyboardBaseView.this.mMiniKeyboardOnScreen;
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
public void setOnKeyboardActionListener(OnKeyboardActionListener listener) {
|
||||
mKeyboardActionListener = listener;
|
||||
mDebouncer.setOnKeyboardActionListener(listener);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -648,7 +883,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
*/
|
||||
public void setKeyboard(Keyboard keyboard) {
|
||||
if (mKeyboard != null) {
|
||||
showKeyPreviewAndUpdateKey(NOT_A_KEY);
|
||||
dismissKeyPreview();
|
||||
}
|
||||
// Remove any pending messages, except dismissing preview
|
||||
mHandler.cancelKeyTimers();
|
||||
|
|
@ -928,16 +1163,19 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
|
||||
if (DEBUG) {
|
||||
if (mShowTouchPoints) {
|
||||
int lastX = mDebouncer.getLastX();
|
||||
int lastY = mDebouncer.getLastY();
|
||||
KeyDebouncer debouncer = mDebouncer;
|
||||
int startX = debouncer.getStartX();
|
||||
int startY = debouncer.getStartY();
|
||||
int lastX = debouncer.getLastX();
|
||||
int lastY = debouncer.getLastY();
|
||||
paint.setAlpha(128);
|
||||
paint.setColor(0xFFFF0000);
|
||||
canvas.drawCircle(mStartX, mStartY, 3, paint);
|
||||
canvas.drawLine(mStartX, mStartY, lastX, lastY, paint);
|
||||
canvas.drawCircle(startX, startY, 3, paint);
|
||||
canvas.drawLine(startX, startY, lastX, lastY, paint);
|
||||
paint.setColor(0xFF0000FF);
|
||||
canvas.drawCircle(lastX, lastY, 3, paint);
|
||||
paint.setColor(0xFF00FF00);
|
||||
canvas.drawCircle((mStartX + lastX) / 2, (mStartY + lastY) / 2, 2, paint);
|
||||
canvas.drawCircle((startX + lastX) / 2, (startY + lastY) / 2, 2, paint);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -945,87 +1183,30 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
mDirtyRect.setEmpty();
|
||||
}
|
||||
|
||||
|
||||
private void detectAndSendKey(int index, int x, int y, long eventTime) {
|
||||
if (index != NOT_A_KEY && index < mKeys.length) {
|
||||
final Key key = mKeys[index];
|
||||
if (key.text != null) {
|
||||
mKeyboardActionListener.onText(key.text);
|
||||
mKeyboardActionListener.onRelease(NOT_A_KEY);
|
||||
} else {
|
||||
int code = key.codes[0];
|
||||
//TextEntryState.keyPressedAt(key, x, y);
|
||||
int[] codes = mProximityKeyDetector.newCodeArray();
|
||||
mProximityKeyDetector.getKeyIndexAndNearbyCodes(x, y, codes);
|
||||
// Multi-tap
|
||||
if (mInMultiTap) {
|
||||
if (mTapCount != -1) {
|
||||
mKeyboardActionListener.onKey(Keyboard.KEYCODE_DELETE, KEY_DELETE, x, y);
|
||||
} else {
|
||||
mTapCount = 0;
|
||||
}
|
||||
code = key.codes[mTapCount];
|
||||
}
|
||||
/*
|
||||
* Swap the first and second values in the codes array if the primary code is not
|
||||
* the first value but the second value in the array. This happens when key
|
||||
* debouncing is in effect.
|
||||
*/
|
||||
if (codes.length >= 2 && codes[0] != code && codes[1] == code) {
|
||||
codes[1] = codes[0];
|
||||
codes[0] = code;
|
||||
}
|
||||
mKeyboardActionListener.onKey(code, codes, x, y);
|
||||
mKeyboardActionListener.onRelease(code);
|
||||
}
|
||||
mLastSentIndex = index;
|
||||
mLastTapTime = eventTime;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle multi-tap keys by producing the key label for the current multi-tap state.
|
||||
*/
|
||||
private CharSequence getPreviewText(Key key) {
|
||||
if (mInMultiTap) {
|
||||
// Multi-tap
|
||||
mPreviewLabel.setLength(0);
|
||||
mPreviewLabel.append((char) key.codes[mTapCount < 0 ? 0 : mTapCount]);
|
||||
return mPreviewLabel;
|
||||
} else {
|
||||
return key.label;
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: clean up this when KeyDebouncer class becomes top-level class.
|
||||
private void showKeyPreviewAndUpdateKey(int keyIndex) {
|
||||
mDebouncer.updateKey(keyIndex);
|
||||
showPreview(keyIndex);
|
||||
private void dismissKeyPreview() {
|
||||
mDebouncer.updateKey(NOT_A_KEY);
|
||||
showPreview(NOT_A_KEY, mDebouncer);
|
||||
}
|
||||
|
||||
private void showPreview(int keyIndex) {
|
||||
private void showPreview(int keyIndex, KeyDebouncer debouncer) {
|
||||
int oldKeyIndex = mOldPreviewKeyIndex;
|
||||
mOldPreviewKeyIndex = keyIndex;
|
||||
// If key changed and preview is on ...
|
||||
if (oldKeyIndex != keyIndex && mShowPreview) {
|
||||
final PopupWindow previewPopup = mPreviewPopup;
|
||||
if (keyIndex == NOT_A_KEY) {
|
||||
mHandler.cancelPopupPreview();
|
||||
if (previewPopup.isShowing()) {
|
||||
mHandler.dismissPreview(DELAY_AFTER_PREVIEW);
|
||||
}
|
||||
mHandler.dismissPreview(DELAY_AFTER_PREVIEW);
|
||||
} else {
|
||||
if (previewPopup.isShowing() && mPreviewText.getVisibility() == VISIBLE) {
|
||||
// Show right away, if it's already visible and finger is moving around
|
||||
showKey(mKeys[keyIndex]);
|
||||
} else {
|
||||
mHandler.popupPreview(mKeys[keyIndex], DELAY_BEFORE_PREVIEW);
|
||||
}
|
||||
mHandler.popupPreview(DELAY_BEFORE_PREVIEW, keyIndex, debouncer);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void showKey(final Key key) {
|
||||
private void showKey(final int keyIndex, KeyDebouncer debouncer) {
|
||||
Key key = debouncer.getKey(keyIndex);
|
||||
if (key == null)
|
||||
return;
|
||||
final PopupWindow previewPopup = mPreviewPopup;
|
||||
if (key.icon != null) {
|
||||
mPreviewText.setCompoundDrawables(null, null, null,
|
||||
|
|
@ -1033,7 +1214,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
mPreviewText.setText(null);
|
||||
} else {
|
||||
mPreviewText.setCompoundDrawables(null, null, null, null);
|
||||
mPreviewText.setText(adjustCase(getPreviewText(key)));
|
||||
mPreviewText.setText(adjustCase(debouncer.getPreviewText(key)));
|
||||
if (key.label.length() > 1 && key.codes.length < 2) {
|
||||
mPreviewText.setTextSize(TypedValue.COMPLEX_UNIT_PX, mKeyTextSize);
|
||||
mPreviewText.setTypeface(Typeface.DEFAULT_BOLD);
|
||||
|
|
@ -1104,7 +1285,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
* Requests a redraw of the entire keyboard. Calling {@link #invalidate} is not sufficient
|
||||
* because the keyboard renders the keys to an off-screen buffer and an invalidate() only
|
||||
* draws the cached buffer.
|
||||
* @see #invalidateKey(int)
|
||||
* @see #invalidateKey(Key)
|
||||
*/
|
||||
public void invalidateAllKeys() {
|
||||
mDirtyRect.union(0, 0, getWidth(), getHeight());
|
||||
|
|
@ -1116,7 +1297,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
* Invalidates a key so that it will be redrawn on the next repaint. Use this method if only
|
||||
* one key is changing it's content. Any changes that affect the position or size of the key
|
||||
* may not be honored.
|
||||
* @param keyIndex the index of the key in the attached {@link Keyboard}.
|
||||
* @param key key in the attached {@link Keyboard}.
|
||||
* @see #invalidateAllKeys
|
||||
*/
|
||||
public void invalidateKey(Key key) {
|
||||
|
|
@ -1142,7 +1323,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
Key popupKey = mKeys[keyIndex];
|
||||
boolean result = onLongPress(popupKey);
|
||||
if (result) {
|
||||
showKeyPreviewAndUpdateKey(NOT_A_KEY);
|
||||
dismissKeyPreview();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
|
@ -1258,7 +1439,7 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
|
||||
// We must disable gesture detector while mini-keyboard is on the screen.
|
||||
if (!mMiniKeyboardOnScreen && mGestureDetector.onTouchEvent(me)) {
|
||||
showKeyPreviewAndUpdateKey(NOT_A_KEY);
|
||||
dismissKeyPreview();
|
||||
mHandler.cancelKeyTimers();
|
||||
return true;
|
||||
}
|
||||
|
|
@ -1285,20 +1466,20 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
if (pointerCount != mOldPointerCount) {
|
||||
if (pointerCount == 1) {
|
||||
// Send a down event for the latest pointer
|
||||
onDownEvent(touchX, touchY, eventTime);
|
||||
mDebouncer.onDownEvent(touchX, touchY, eventTime);
|
||||
// If it's an up action, then deliver the up as well.
|
||||
if (action == MotionEvent.ACTION_UP) {
|
||||
onUpEvent(touchX, touchY, eventTime);
|
||||
mDebouncer.onUpEvent(touchX, touchY, eventTime);
|
||||
}
|
||||
} else {
|
||||
// Send an up event for the last pointer
|
||||
onUpEvent(mOldPointerX, mOldPointerY, eventTime);
|
||||
mDebouncer.onUpEvent(mOldPointerX, mOldPointerY, eventTime);
|
||||
}
|
||||
mOldPointerCount = pointerCount;
|
||||
return true;
|
||||
} else {
|
||||
if (pointerCount == 1) {
|
||||
onModifiedTouchEvent(action, touchX, touchY, eventTime);
|
||||
mDebouncer.onModifiedTouchEvent(action, touchX, touchY, eventTime);
|
||||
mOldPointerX = touchX;
|
||||
mOldPointerY = touchY;
|
||||
return true;
|
||||
|
|
@ -1308,115 +1489,6 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
return false;
|
||||
}
|
||||
|
||||
private void onModifiedTouchEvent(int action, int touchX, int touchY, long eventTime) {
|
||||
switch (action) {
|
||||
case MotionEvent.ACTION_DOWN:
|
||||
onDownEvent(touchX, touchY, eventTime);
|
||||
break;
|
||||
case MotionEvent.ACTION_MOVE:
|
||||
onMoveEvent(touchX, touchY, eventTime);
|
||||
break;
|
||||
case MotionEvent.ACTION_UP:
|
||||
onUpEvent(touchX, touchY, eventTime);
|
||||
break;
|
||||
case MotionEvent.ACTION_CANCEL:
|
||||
onCancelEvent(touchX, touchY, eventTime);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
private void onDownEvent(int touchX, int touchY, long eventTime) {
|
||||
int keyIndex = mProximityKeyDetector.getKeyIndexAndNearbyCodes(touchX, touchY, null);
|
||||
mCurrentKey = keyIndex;
|
||||
mStartX = touchX;
|
||||
mStartY = touchY;
|
||||
mDebouncer.startMoveDebouncing(touchX, touchY);
|
||||
mDebouncer.startTimeDebouncing(eventTime);
|
||||
checkMultiTap(eventTime, keyIndex);
|
||||
mKeyboardActionListener.onPress(keyIndex != NOT_A_KEY ? mKeys[keyIndex].codes[0] : 0);
|
||||
if (keyIndex >= 0 && mKeys[keyIndex].repeatable) {
|
||||
repeatKey(keyIndex);
|
||||
mHandler.startKeyRepeatTimer(REPEAT_START_DELAY, keyIndex);
|
||||
}
|
||||
if (keyIndex != NOT_A_KEY) {
|
||||
mHandler.startLongPressTimer(keyIndex, LONGPRESS_TIMEOUT);
|
||||
}
|
||||
showKeyPreviewAndUpdateKey(keyIndex);
|
||||
mDebouncer.updateMoveDebouncing(touchX, touchY);
|
||||
}
|
||||
|
||||
private void onMoveEvent(int touchX, int touchY, long eventTime) {
|
||||
int keyIndex = mProximityKeyDetector.getKeyIndexAndNearbyCodes(touchX, touchY, null);
|
||||
if (keyIndex != NOT_A_KEY) {
|
||||
if (mCurrentKey == NOT_A_KEY) {
|
||||
mDebouncer.updateTimeDebouncing(eventTime);
|
||||
mCurrentKey = keyIndex;
|
||||
mHandler.startLongPressTimer(keyIndex, LONGPRESS_TIMEOUT);
|
||||
} else if (mDebouncer.isMinorMoveBounce(touchX, touchY, keyIndex, mCurrentKey)) {
|
||||
mDebouncer.updateTimeDebouncing(eventTime);
|
||||
} else {
|
||||
resetMultiTap();
|
||||
mDebouncer.resetTimeDebouncing(eventTime, mCurrentKey);
|
||||
mDebouncer.resetMoveDebouncing();
|
||||
mCurrentKey = keyIndex;
|
||||
mHandler.startLongPressTimer(keyIndex, LONGPRESS_TIMEOUT);
|
||||
}
|
||||
} else {
|
||||
mHandler.cancelLongPressTimer();
|
||||
}
|
||||
/*
|
||||
* While time debouncing is in effect, mCurrentKey holds the new key and mDebouncer
|
||||
* holds the last key. At ACTION_UP event if time debouncing will be in effect
|
||||
* eventually, the last key should be sent as the result. In such case mCurrentKey
|
||||
* should not be showed as popup preview.
|
||||
*/
|
||||
showKeyPreviewAndUpdateKey(
|
||||
mDebouncer.isMinorTimeBounce() ? mDebouncer.getLastKey() : mCurrentKey);
|
||||
mDebouncer.updateMoveDebouncing(touchX, touchY);
|
||||
}
|
||||
|
||||
private void onUpEvent(int touchX, int touchY, long eventTime) {
|
||||
int keyIndex = mProximityKeyDetector.getKeyIndexAndNearbyCodes(touchX, touchY, null);
|
||||
boolean wasInKeyRepeat = mHandler.isInKeyRepeat();
|
||||
mHandler.cancelKeyTimers();
|
||||
mHandler.cancelPopupPreview();
|
||||
if (mDebouncer.isMinorMoveBounce(touchX, touchY, keyIndex, mCurrentKey)) {
|
||||
mDebouncer.updateTimeDebouncing(eventTime);
|
||||
} else {
|
||||
resetMultiTap();
|
||||
mDebouncer.resetTimeDebouncing(eventTime, mCurrentKey);
|
||||
mCurrentKey = keyIndex;
|
||||
}
|
||||
if (mDebouncer.isMinorTimeBounce()) {
|
||||
mCurrentKey = mDebouncer.getLastKey();
|
||||
touchX = mDebouncer.getLastCodeX();
|
||||
touchY = mDebouncer.getLastCodeY();
|
||||
}
|
||||
showKeyPreviewAndUpdateKey(NOT_A_KEY);
|
||||
// If we're not on a repeating key (which sends on a DOWN event)
|
||||
if (!wasInKeyRepeat && !mMiniKeyboardOnScreen) {
|
||||
detectAndSendKey(mCurrentKey, touchX, touchY, eventTime);
|
||||
}
|
||||
if (keyIndex != NOT_A_KEY)
|
||||
invalidateKey(mKeys[keyIndex]);
|
||||
}
|
||||
|
||||
private void onCancelEvent(int touchX, int touchY, long eventTime) {
|
||||
mHandler.cancelKeyTimers();
|
||||
mHandler.cancelPopupPreview();
|
||||
dismissPopupKeyboard();
|
||||
showKeyPreviewAndUpdateKey(NOT_A_KEY);
|
||||
if (mCurrentKey != NOT_A_KEY)
|
||||
invalidateKey(mKeys[mCurrentKey]);
|
||||
}
|
||||
|
||||
private void repeatKey(int keyIndex) {
|
||||
Key key = mKeys[keyIndex];
|
||||
// While key is repeating, because there is no need to handle multi-tap key, we can pass
|
||||
// -1 as eventTime argument.
|
||||
detectAndSendKey(keyIndex, key.x, key.y, -1);
|
||||
}
|
||||
|
||||
protected void swipeRight() {
|
||||
mKeyboardActionListener.swipeRight();
|
||||
}
|
||||
|
|
@ -1466,30 +1538,4 @@ public class LatinKeyboardBaseView extends View implements View.OnClickListener
|
|||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
private void resetMultiTap() {
|
||||
mLastSentIndex = NOT_A_KEY;
|
||||
mTapCount = 0;
|
||||
mLastTapTime = -1;
|
||||
mInMultiTap = false;
|
||||
}
|
||||
|
||||
private void checkMultiTap(long eventTime, int keyIndex) {
|
||||
if (keyIndex == NOT_A_KEY) return;
|
||||
Key key = mKeys[keyIndex];
|
||||
if (key.codes.length > 1) {
|
||||
mInMultiTap = true;
|
||||
if (eventTime < mLastTapTime + MULTITAP_INTERVAL
|
||||
&& keyIndex == mLastSentIndex) {
|
||||
mTapCount = (mTapCount + 1) % key.codes.length;
|
||||
return;
|
||||
} else {
|
||||
mTapCount = -1;
|
||||
return;
|
||||
}
|
||||
}
|
||||
if (eventTime > mLastTapTime + MULTITAP_INTERVAL || keyIndex != mLastSentIndex) {
|
||||
resetMultiTap();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue