diff options
Diffstat (limited to 'java/src/com/android/inputmethod/keyboard/PointerTracker.java')
| -rw-r--r-- | java/src/com/android/inputmethod/keyboard/PointerTracker.java | 253 |
1 files changed, 121 insertions, 132 deletions
diff --git a/java/src/com/android/inputmethod/keyboard/PointerTracker.java b/java/src/com/android/inputmethod/keyboard/PointerTracker.java index b5b3ef65f..be101cfb0 100644 --- a/java/src/com/android/inputmethod/keyboard/PointerTracker.java +++ b/java/src/com/android/inputmethod/keyboard/PointerTracker.java @@ -80,7 +80,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { public void invalidateKey(Key key); public void showKeyPreview(PointerTracker tracker); public void dismissKeyPreview(PointerTracker tracker); - public void showGestureTrail(PointerTracker tracker); + public void showGesturePreviewTrail(PointerTracker tracker); } public interface TimerProxy { @@ -152,8 +152,6 @@ public class PointerTracker implements PointerTrackerQueue.Element { private static boolean sNeedsPhantomSuddenMoveEventHack; private static final ArrayList<PointerTracker> sTrackers = CollectionUtils.newArrayList(); - private static final InputPointers sAggregratedPointers = new InputPointers( - GestureStroke.DEFAULT_CAPACITY); private static PointerTrackerQueue sPointerTrackerQueue; public final int mPointerId; @@ -166,13 +164,13 @@ public class PointerTracker implements PointerTrackerQueue.Element { private Keyboard mKeyboard; private int mKeyQuarterWidthSquared; - private boolean mIsAlphabetKeyboard; - private boolean mIsPossibleGesture = false; - private boolean mInGesture = false; - - // TODO: Remove these variables - private int mLastRecognitionPointSize = 0; - private long mLastRecognitionTime = 0; + private boolean mIsDetectingGesture = false; // per PointerTracker. + private static boolean sInGesture = false; + private static long sGestureFirstDownTime; + private static final InputPointers sAggregratedPointers = new InputPointers( + GestureStroke.DEFAULT_CAPACITY); + private static int sLastRecognitionPointSize = 0; + private static long sLastRecognitionTime = 0; // The position and time at which first down event occurred. private long mDownTime; @@ -290,40 +288,6 @@ public class PointerTracker implements PointerTrackerQueue.Element { } } - // TODO: To handle multi-touch gestures we may want to move this method to - // {@link PointerTrackerQueue}. - private static InputPointers getIncrementalBatchPoints() { - final int trackersSize = sTrackers.size(); - for (int i = 0; i < trackersSize; ++i) { - final PointerTracker tracker = sTrackers.get(i); - tracker.mGestureStrokeWithPreviewTrail.appendIncrementalBatchPoints( - sAggregratedPointers); - } - return sAggregratedPointers; - } - - // TODO: To handle multi-touch gestures we may want to move this method to - // {@link PointerTrackerQueue}. - private static InputPointers getAllBatchPoints() { - final int trackersSize = sTrackers.size(); - for (int i = 0; i < trackersSize; ++i) { - final PointerTracker tracker = sTrackers.get(i); - tracker.mGestureStrokeWithPreviewTrail.appendAllBatchPoints(sAggregratedPointers); - } - return sAggregratedPointers; - } - - // TODO: To handle multi-touch gestures we may want to move this method to - // {@link PointerTrackerQueue}. - public static void clearBatchInputPointsOfAllPointerTrackers() { - final int trackersSize = sTrackers.size(); - for (int i = 0; i < trackersSize; ++i) { - final PointerTracker tracker = sTrackers.get(i); - tracker.mGestureStrokeWithPreviewTrail.reset(); - } - sAggregratedPointers.reset(); - } - private PointerTracker(final int id, final KeyEventHandler handler) { if (handler == null) { throw new NullPointerException(); @@ -338,7 +302,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { // Returns true if keyboard has been changed by this callback. private boolean callListenerOnPressAndCheckKeyboardLayoutChange(final Key key) { - if (mInGesture) { + if (sInGesture) { return false; } final boolean ignoreModifierKey = mIgnoreModifierKey && key.isModifier(); @@ -394,7 +358,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { // primaryCode is different from {@link Key#mCode}. private void callListenerOnRelease(final Key key, final int primaryCode, final boolean withSliding) { - if (mInGesture) { + if (sInGesture) { return; } final boolean ignoreModifierKey = mIgnoreModifierKey && key.isModifier(); @@ -428,7 +392,6 @@ public class PointerTracker implements PointerTrackerQueue.Element { private void setKeyDetectorInner(final KeyDetector keyDetector) { mKeyDetector = keyDetector; mKeyboard = keyDetector.getKeyboard(); - mIsAlphabetKeyboard = mKeyboard.mId.isAlphabetKeyboard(); mGestureStrokeWithPreviewTrail.setGestureSampleLength(mKeyboard.mMostCommonKeyWidth); final Key newKey = mKeyDetector.detectHitKey(mKeyX, mKeyY); if (newKey != mCurrentKey) { @@ -502,7 +465,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { return; } - if (!key.noKeyPreview() && !mInGesture) { + if (!key.noKeyPreview() && !sInGesture) { mDrawingProxy.showKeyPreview(this); } updatePressKeyGraphics(key); @@ -577,50 +540,65 @@ public class PointerTracker implements PointerTrackerQueue.Element { return newKey; } + private static int getActivePointerTrackerCount() { + return (sPointerTrackerQueue == null) ? 1 : sPointerTrackerQueue.size(); + } + private void startBatchInput() { if (DEBUG_LISTENER) { Log.d(TAG, "onStartBatchInput"); } - mInGesture = true; + sInGesture = true; mListener.onStartBatchInput(); - } - - private void updateBatchInput(final InputPointers batchPoints) { - if (DEBUG_LISTENER) { - Log.d(TAG, "onUpdateBatchInput: batchPoints=" + batchPoints.getPointerSize()); + mDrawingProxy.showGesturePreviewTrail(this); + } + + private void updateBatchInput(final long eventTime) { + synchronized (sAggregratedPointers) { + mGestureStrokeWithPreviewTrail.appendIncrementalBatchPoints(sAggregratedPointers); + final int size = sAggregratedPointers.getPointerSize(); + if (size > sLastRecognitionPointSize + && eventTime > sLastRecognitionTime + MIN_GESTURE_RECOGNITION_TIME) { + sLastRecognitionPointSize = size; + sLastRecognitionTime = eventTime; + if (DEBUG_LISTENER) { + Log.d(TAG, "onUpdateBatchInput: batchPoints=" + size); + } + mListener.onUpdateBatchInput(sAggregratedPointers); + } } - mListener.onUpdateBatchInput(batchPoints); + mDrawingProxy.showGesturePreviewTrail(this); } - private void endBatchInput(final InputPointers batchPoints) { - if (DEBUG_LISTENER) { - Log.d(TAG, "onEndBatchInput: batchPoints=" + batchPoints.getPointerSize()); + private void endBatchInput() { + synchronized (sAggregratedPointers) { + mGestureStrokeWithPreviewTrail.appendAllBatchPoints(sAggregratedPointers); + if (getActivePointerTrackerCount() == 1) { + if (DEBUG_LISTENER) { + Log.d(TAG, "onEndBatchInput: batchPoints=" + + sAggregratedPointers.getPointerSize()); + } + sInGesture = false; + mListener.onEndBatchInput(sAggregratedPointers); + clearBatchInputPointsOfAllPointerTrackers(); + } } - mListener.onEndBatchInput(batchPoints); - clearBatchInputRecognitionStateOfThisPointerTracker(); - clearBatchInputPointsOfAllPointerTrackers(); + mDrawingProxy.showGesturePreviewTrail(this); } - private void abortBatchInput() { - clearBatchInputRecognitionStateOfThisPointerTracker(); + private static void abortBatchInput() { clearBatchInputPointsOfAllPointerTrackers(); } - private void clearBatchInputRecognitionStateOfThisPointerTracker() { - mIsPossibleGesture = false; - mInGesture = false; - mLastRecognitionPointSize = 0; - mLastRecognitionTime = 0; - } - - private boolean updateBatchInputRecognitionState(final long eventTime, final int size) { - if (size > mLastRecognitionPointSize - && eventTime > mLastRecognitionTime + MIN_GESTURE_RECOGNITION_TIME) { - mLastRecognitionPointSize = size; - mLastRecognitionTime = eventTime; - return true; + private static void clearBatchInputPointsOfAllPointerTrackers() { + final int trackersSize = sTrackers.size(); + for (int i = 0; i < trackersSize; ++i) { + final PointerTracker tracker = sTrackers.get(i); + tracker.mGestureStrokeWithPreviewTrail.reset(); } - return false; + sAggregratedPointers.reset(); + sLastRecognitionPointSize = 0; + sLastRecognitionTime = 0; } public void processMotionEvent(final int action, final int x, final int y, final long eventTime, @@ -671,8 +649,8 @@ public class PointerTracker implements PointerTrackerQueue.Element { } } - final PointerTrackerQueue queue = sPointerTrackerQueue; final Key key = getKeyOn(x, y); + final PointerTrackerQueue queue = sPointerTrackerQueue; if (queue != null) { if (key != null && key.isModifier()) { // Before processing a down event of modifier key, all pointers already being @@ -682,16 +660,26 @@ public class PointerTracker implements PointerTrackerQueue.Element { queue.add(this); } onDownEventInternal(x, y, eventTime); - if (queue != null && queue.size() == 1) { - mIsPossibleGesture = false; + if (!sShouldHandleGesture) { + return; + } + final int activePointerTrackerCount = getActivePointerTrackerCount(); + if (activePointerTrackerCount == 1) { + mIsDetectingGesture = false; // A gesture should start only from the letter key. - if (sShouldHandleGesture && mIsAlphabetKeyboard && !mIsShowingMoreKeysPanel - && key != null && Keyboard.isLetterCode(key.mCode)) { - mIsPossibleGesture = true; - // TODO: pointer times should be relative to first down even in entire batch input - // instead of resetting to 0 for each new down event. - mGestureStrokeWithPreviewTrail.addPoint(x, y, 0, false); + final boolean isAlphabetKeyboard = (mKeyboard != null) + && mKeyboard.mId.isAlphabetKeyboard(); + if (isAlphabetKeyboard && !mIsShowingMoreKeysPanel && key != null + && Keyboard.isLetterCode(key.mCode)) { + mIsDetectingGesture = true; + sGestureFirstDownTime = eventTime; + mGestureStrokeWithPreviewTrail.addPoint(x, y, 0, false /* isHistorical */); } + } else if (sInGesture && activePointerTrackerCount > 1) { + mIsDetectingGesture = true; + final int elapsedTimeFromFirstDown = (int)(eventTime - sGestureFirstDownTime); + mGestureStrokeWithPreviewTrail.addPoint(x, y, elapsedTimeFromFirstDown, + false /* isHistorical */); } } @@ -727,22 +715,18 @@ public class PointerTracker implements PointerTrackerQueue.Element { mIsInSlidingKeyInput = true; } - private void onGestureMoveEvent(final PointerTracker tracker, final int x, final int y, - final long eventTime, final boolean isHistorical, final Key key) { - final int gestureTime = (int)(eventTime - tracker.getDownTime()); - if (sShouldHandleGesture && mIsPossibleGesture) { + private void onGestureMoveEvent(final int x, final int y, final long eventTime, + final boolean isHistorical, final Key key) { + final int gestureTime = (int)(eventTime - sGestureFirstDownTime); + if (mIsDetectingGesture) { final GestureStroke stroke = mGestureStrokeWithPreviewTrail; stroke.addPoint(x, y, gestureTime, isHistorical); - if (!mInGesture && stroke.isStartOfAGesture()) { + if (!sInGesture && stroke.isStartOfAGesture()) { startBatchInput(); } - } - if (key != null && mInGesture) { - final InputPointers batchPoints = getIncrementalBatchPoints(); - mDrawingProxy.showGestureTrail(this); - if (updateBatchInputRecognitionState(eventTime, batchPoints.getPointerSize())) { - updateBatchInput(batchPoints); + if (sInGesture && key != null) { + updateBatchInput(eventTime); } } } @@ -755,7 +739,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { return; } - if (me != null) { + if (sShouldHandleGesture && me != null) { // Add historical points to gesture path. final int pointerIndex = me.findPointerIndex(mPointerId); final int historicalSize = me.getHistorySize(); @@ -763,24 +747,31 @@ public class PointerTracker implements PointerTrackerQueue.Element { final int historicalX = (int)me.getHistoricalX(pointerIndex, h); final int historicalY = (int)me.getHistoricalY(pointerIndex, h); final long historicalTime = me.getHistoricalEventTime(h); - onGestureMoveEvent(this, historicalX, historicalY, historicalTime, + onGestureMoveEvent(historicalX, historicalY, historicalTime, true /* isHistorical */, null); } } + onMoveEventInternal(x, y, eventTime); + } + + private void onMoveEventInternal(final int x, final int y, final long eventTime) { final int lastX = mLastX; final int lastY = mLastY; final Key oldKey = mCurrentKey; Key key = onMoveKey(x, y); - // Register move event on gesture tracker. - onGestureMoveEvent(this, x, y, eventTime, false /* isHistorical */, key); - if (mInGesture) { - mIgnoreModifierKey = true; - mTimerProxy.cancelLongPressTimer(); - mIsInSlidingKeyInput = true; - mCurrentKey = null; - setReleasedKeyGraphics(oldKey); + if (sShouldHandleGesture) { + // Register move event on gesture tracker. + onGestureMoveEvent(x, y, eventTime, false /* isHistorical */, key); + if (sInGesture) { + mIgnoreModifierKey = true; + mTimerProxy.cancelLongPressTimer(); + mIsInSlidingKeyInput = true; + mCurrentKey = null; + setReleasedKeyGraphics(oldKey); + return; + } } if (key != null) { @@ -825,7 +816,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { // TODO: Should find a way to balance gesture detection and this hack. if (sNeedsPhantomSuddenMoveEventHack && lastMoveSquared >= mKeyQuarterWidthSquared - && !mIsPossibleGesture) { + && !mIsDetectingGesture) { if (DEBUG_MODE) { Log.w(TAG, String.format("onMoveEvent:" + " phantom sudden move event is translated to " @@ -843,12 +834,11 @@ public class PointerTracker implements PointerTrackerQueue.Element { // touch panels when there are close multiple touches. // Caveat: When in chording input mode with a modifier key, we don't use // this hack. - final PointerTrackerQueue queue = sPointerTrackerQueue; - if (queue != null && queue.size() > 1 - && !queue.hasModifierKeyOlderThan(this)) { + if (getActivePointerTrackerCount() > 1 && sPointerTrackerQueue != null + && !sPointerTrackerQueue.hasModifierKeyOlderThan(this)) { onUpEventInternal(); } - if (!mIsPossibleGesture) { + if (!mIsDetectingGesture) { mKeyAlreadyProcessed = true; } setReleasedKeyGraphics(oldKey); @@ -866,7 +856,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { if (mIsAllowedSlidingKeyInput) { onMoveToNewKey(key, x, y); } else { - if (!mIsPossibleGesture) { + if (!mIsDetectingGesture) { mKeyAlreadyProcessed = true; } } @@ -881,7 +871,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { final PointerTrackerQueue queue = sPointerTrackerQueue; if (queue != null) { - if (!mInGesture) { + if (!sInGesture) { if (mCurrentKey != null && mCurrentKey.isModifier()) { // Before processing an up event of modifier key, all pointers already being // tracked should be released. @@ -890,9 +880,11 @@ public class PointerTracker implements PointerTrackerQueue.Element { queue.releaseAllPointersOlderThan(this, eventTime); } } - queue.remove(this); } onUpEventInternal(); + if (queue != null) { + queue.remove(this); + } } // Let this pointer tracker know that one of newer-than-this pointer trackers got an up event. @@ -910,34 +902,31 @@ public class PointerTracker implements PointerTrackerQueue.Element { private void onUpEventInternal() { mTimerProxy.cancelKeyTimers(); mIsInSlidingKeyInput = false; - mIsPossibleGesture = false; + mIsDetectingGesture = false; + final Key currentKey = mCurrentKey; + mCurrentKey = null; // Release the last pressed key. - setReleasedKeyGraphics(mCurrentKey); + setReleasedKeyGraphics(currentKey); if (mIsShowingMoreKeysPanel) { mDrawingProxy.dismissMoreKeysPanel(); mIsShowingMoreKeysPanel = false; } - if (mInGesture) { - // Register up event on gesture tracker. - // TODO: Figure out how to deal with multiple fingers that are in gesture, sliding, - // and/or tapping mode? - endBatchInput(getAllBatchPoints()); - if (mCurrentKey != null) { - callListenerOnRelease(mCurrentKey, mCurrentKey.mCode, true); - mCurrentKey = null; + if (sInGesture) { + if (currentKey != null) { + callListenerOnRelease(currentKey, currentKey.mCode, true); } - mDrawingProxy.showGestureTrail(this); + endBatchInput(); return; } - // This event will be recognized as a regular code input. Clear unused batch points so they - // are not mistakenly included in the next batch event. + // This event will be recognized as a regular code input. Clear unused possible batch points + // so they are not mistakenly displayed as preview. clearBatchInputPointsOfAllPointerTrackers(); if (mKeyAlreadyProcessed) { return; } - if (mCurrentKey != null && !mCurrentKey.isRepeatable()) { - detectAndSendKey(mCurrentKey, mKeyX, mKeyY); + if (currentKey != null && !currentKey.isRepeatable()) { + detectAndSendKey(currentKey, mKeyX, mKeyY); } } @@ -981,7 +970,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { } private void startRepeatKey(final Key key) { - if (key != null && key.isRepeatable() && !mInGesture) { + if (key != null && key.isRepeatable() && !sInGesture) { onRegisterKey(key); mTimerProxy.startKeyRepeatTimer(this); } @@ -1010,7 +999,7 @@ public class PointerTracker implements PointerTrackerQueue.Element { } private void startLongPressTimer(final Key key) { - if (key != null && key.isLongPressEnabled() && !mInGesture) { + if (key != null && key.isLongPressEnabled() && !sInGesture) { mTimerProxy.startLongPressTimer(this); } } |