Cancel gesture typing by sliding out from keyboard (b3f78979) · Commits · e / os / android_packages_inputmethods_LatinIME

java/src/com/android/inputmethod/keyboard/KeyboardActionListener.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -80,6 +80,8 @@ public interface KeyboardActionListener {
		*/
		public void onEndBatchInput(InputPointers batchPointers);

		public void onCancelBatchInput();

		/**
		* Called when user released a finger outside any key.
		*/
		@@ -107,6 +109,8 @@ public interface KeyboardActionListener {
		@Override
		public void onEndBatchInput(InputPointers batchPointers) {}
		@Override
		public void onCancelBatchInput() {}
		@Override
		public void onCancelInput() {}
		@Override
		public boolean onCustomRequest(int requestCode) {

java/src/com/android/inputmethod/keyboard/PointerTracker.java

+36 −19

Original line number	Diff line number	Diff line
		@@ -305,8 +305,8 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		// true if keyboard layout has been changed.
		private boolean mKeyboardLayoutHasBeenChanged;

		// true if event is already translated to a key action.
		private boolean mKeyAlreadyProcessed;
		// true if this pointer is no longer tracking touch event.
		private boolean mIsTrackingCanceled;

		// true if this pointer has been long-pressed and is showing a more keys panel.
		private boolean mIsShowingMoreKeysPanel;
		@@ -517,7 +517,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		mKeyboard = keyDetector.getKeyboard();
		final int keyWidth = mKeyboard.mMostCommonKeyWidth;
		final int keyHeight = mKeyboard.mMostCommonKeyHeight;
		mGestureStrokeWithPreviewPoints.setKeyboardGeometry(keyWidth);
		mGestureStrokeWithPreviewPoints.setKeyboardGeometry(keyWidth, mKeyboard.mOccupiedHeight);
		final Key newKey = mKeyDetector.detectHitKey(mKeyX, mKeyY);
		if (newKey != mCurrentKey) {
		if (mDrawingProxy != null) {
		@@ -730,15 +730,17 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		synchronized (sAggregratedPointers) {
		mGestureStrokeWithPreviewPoints.appendAllBatchPoints(sAggregratedPointers);
		if (getActivePointerTrackerCount() == 1) {
		sInGesture = false;
		sTimeRecorder.onEndBatchInput(eventTime);
		if (!mIsTrackingCanceled) {
		if (DEBUG_LISTENER) {
		Log.d(TAG, String.format("[%d] onEndBatchInput : batchPoints=%d",
		mPointerId, sAggregratedPointers.getPointerSize()));
		}
		sInGesture = false;
		sTimeRecorder.onEndBatchInput(eventTime);
		mListener.onEndBatchInput(sAggregratedPointers);
		}
		}
		}
		mDrawingProxy.showGesturePreviewTrail(this, isOldestTrackerInQueue(this));
		}

		@@ -784,7 +786,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		if (ProductionFlag.IS_EXPERIMENTAL) {
		ResearchLogger.pointerTracker_onDownEvent(deltaT, distance * distance);
		}
		mKeyAlreadyProcessed = true;
		cancelTracking();
		return;
		}
		}
		@@ -821,7 +823,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		\|\| (key != null && key.isModifier())
		\|\| mKeyDetector.alwaysAllowsSlidingInput();
		mKeyboardLayoutHasBeenChanged = false;
		mKeyAlreadyProcessed = false;
		mIsTrackingCanceled = false;
		resetSlidingKeyInput();
		if (key != null) {
		// This onPress call may have changed keyboard layout. Those cases are detected at
		@@ -853,7 +855,17 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		final boolean isMajorEvent, final Key key) {
		final int gestureTime = (int)(eventTime - sGestureFirstDownTime);
		if (mIsDetectingGesture) {
		mGestureStrokeWithPreviewPoints.addPoint(x, y, gestureTime, isMajorEvent);
		final boolean onValidArea = mGestureStrokeWithPreviewPoints.addPointOnKeyboard(
		x, y, gestureTime, isMajorEvent);
		if (!onValidArea) {
		sPointerTrackerQueue.cancelAllPointerTracker();
		if (DEBUG_LISTENER) {
		Log.d(TAG, String.format("[%d] onCancelBatchInput: batchPoints=%d",
		mPointerId, sAggregratedPointers.getPointerSize()));
		}
		mListener.onCancelBatchInput();
		return;
		}
		mayStartBatchInput(key);
		if (sInGesture) {
		mayUpdateBatchInput(eventTime, key);
		@@ -865,7 +877,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		if (DEBUG_MOVE_EVENT) {
		printTouchEvent("onMoveEvent:", x, y, eventTime);
		}
		if (mKeyAlreadyProcessed) {
		if (mIsTrackingCanceled) {
		return;
		}

		@@ -979,11 +991,11 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		+ " detected sliding finger while multi touching", mPointerId));
		}
		onUpEvent(x, y, eventTime);
		mKeyAlreadyProcessed = true;
		cancelTracking();
		setReleasedKeyGraphics(oldKey);
		} else {
		if (!mIsDetectingGesture) {
		mKeyAlreadyProcessed = true;
		cancelTracking();
		}
		setReleasedKeyGraphics(oldKey);
		}
		@@ -997,7 +1009,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		onMoveToNewKey(null, x, y);
		} else {
		if (!mIsDetectingGesture) {
		mKeyAlreadyProcessed = true;
		cancelTracking();
		}
		}
		}
		@@ -1060,7 +1072,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		printTouchEvent("onPhntEvent:", getLastX(), getLastY(), eventTime);
		}
		onUpEventInternal(eventTime);
		mKeyAlreadyProcessed = true;
		cancelTracking();
		}

		private void onUpEventInternal(final long eventTime) {
		@@ -1084,7 +1096,7 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		return;
		}

		if (mKeyAlreadyProcessed) {
		if (mIsTrackingCanceled) {
		return;
		}
		if (currentKey != null && !currentKey.isRepeatable()) {
		@@ -1098,8 +1110,13 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		onDownEvent(x, y, SystemClock.uptimeMillis(), handler);
		}

		@Override
		public void cancelTracking() {
		mIsTrackingCanceled = true;
		}

		public void onLongPressed() {
		mKeyAlreadyProcessed = true;
		cancelTracking();
		setReleasedKeyGraphics(mCurrentKey);
		sPointerTrackerQueue.remove(this);
		}
		@@ -1202,6 +1219,6 @@ public final class PointerTracker implements PointerTrackerQueue.Element {
		final Key key = mKeyDetector.detectHitKey(x, y);
		final String code = KeyDetector.printableCode(key);
		Log.d(TAG, String.format("[%d]%s%s %4d %4d %5d %s", mPointerId,
		(mKeyAlreadyProcessed ? "-" : " "), title, x, y, eventTime, code));
		(mIsTrackingCanceled ? "-" : " "), title, x, y, eventTime, code));
		}
		}

java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java

+22 −3

Original line number	Diff line number	Diff line
		@@ -27,6 +27,10 @@ public class GestureStroke {
		private static final boolean DEBUG = false;
		private static final boolean DEBUG_SPEED = false;

		// The height of extra area above the keyboard to draw gesture trails.
		// Proportional to the keyboard height.
		public static final float EXTRA_GESTURE_TRAIL_AREA_ABOVE_KEYBOARD_RATIO = 0.25f;

		public static final int DEFAULT_CAPACITY = 128;

		private final int mPointerId;
		@@ -37,6 +41,8 @@ public class GestureStroke {
		private final GestureStrokeParams mParams;

		private int mKeyWidth; // pixel
		private int mMinYCoordinate; // pixel
		private int mMaxYCoordinate; // pixel
		// Static threshold for starting gesture detection
		private int mDetectFastMoveSpeedThreshold; // pixel /sec
		private int mDetectFastMoveTime;
		@@ -135,8 +141,10 @@ public class GestureStroke {
		mParams = params;
		}

		public void setKeyboardGeometry(final int keyWidth) {
		public void setKeyboardGeometry(final int keyWidth, final int keyboardHeight) {
		mKeyWidth = keyWidth;
		mMinYCoordinate = -(int)(keyboardHeight * EXTRA_GESTURE_TRAIL_AREA_ABOVE_KEYBOARD_RATIO);
		mMaxYCoordinate = keyboardHeight - 1;
		// TODO: Find an appropriate base metric for these length. Maybe diagonal length of the key?
		mDetectFastMoveSpeedThreshold = (int)(keyWidth * mParams.mDetectFastMoveSpeedThreshold);
		mGestureDynamicDistanceThresholdFrom =
		@@ -167,7 +175,7 @@ public class GestureStroke {
		elapsedTimeAfterTyping, mAfterFastTyping ? " afterFastTyping" : ""));
		}
		final int elapsedTimeFromFirstDown = (int)(downTime - gestureFirstDownTime);
		addPoint(x, y, elapsedTimeFromFirstDown, true /* isMajorEvent */);
		addPointOnKeyboard(x, y, elapsedTimeFromFirstDown, true /* isMajorEvent */);
		}

		private int getGestureDynamicDistanceThreshold(final int deltaTime) {
		@@ -277,7 +285,17 @@ public class GestureStroke {
		return dist;
		}

		public void addPoint(final int x, final int y, final int time, final boolean isMajorEvent) {
		/**
		* Add a touch event as a gesture point. Returns true if the touch event is on the valid
		* gesture area.
		* @param x the x-coordinate of the touch event
		* @param y the y-coordinate of the touch event
		* @param time the elapsed time in millisecond from the first gesture down
		* @param isMajorEvent false if this is a historical move event
		* @return true if the touch event is on the valid gesture area
		*/
		public boolean addPointOnKeyboard(final int x, final int y, final int time,
		final boolean isMajorEvent) {
		final int size = mEventTimes.getLength();
		if (size <= 0) {
		// Down event
		@@ -293,6 +311,7 @@ public class GestureStroke {
		updateIncrementalRecognitionSize(x, y, time);
		updateMajorEvent(x, y, time);
		}
		return y >= mMinYCoordinate && y < mMaxYCoordinate;
		}

		private void updateIncrementalRecognitionSize(final int x, final int y, final int time) {

java/src/com/android/inputmethod/keyboard/internal/GestureStrokeWithPreviewPoints.java

+6 −4

Original line number	Diff line number	Diff line
		@@ -56,8 +56,8 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
		}

		@Override
		public void setKeyboardGeometry(final int keyWidth) {
		super.setKeyboardGeometry(keyWidth);
		public void setKeyboardGeometry(final int keyWidth, final int keyboardHeight) {
		super.setKeyboardGeometry(keyWidth, keyboardHeight);
		final float sampleLength = keyWidth * MIN_PREVIEW_SAMPLE_LENGTH_RATIO_TO_KEY_WIDTH;
		mMinPreviewSampleLengthSquare = (int)(sampleLength * sampleLength);
		}
		@@ -69,8 +69,9 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
		}

		@Override
		public void addPoint(final int x, final int y, final int time, final boolean isMajorEvent) {
		super.addPoint(x, y, time, isMajorEvent);
		public boolean addPointOnKeyboard(final int x, final int y, final int time,
		final boolean isMajorEvent) {
		final boolean onValidArea = super.addPointOnKeyboard(x, y, time, isMajorEvent);
		if (isMajorEvent \|\| needsSampling(x, y)) {
		mPreviewEventTimes.add(time);
		mPreviewXCoordinates.add(x);
		@@ -78,6 +79,7 @@ public final class GestureStrokeWithPreviewPoints extends GestureStroke {
		mLastX = x;
		mLastY = y;
		}
		return onValidArea;
		}

		public void appendPreviewStroke(final ResizableIntArray eventTimes,

java/src/com/android/inputmethod/keyboard/internal/PointerTrackerQueue.java

+10 −0

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@ public final class PointerTrackerQueue {
		public boolean isModifier();
		public boolean isInSlidingKeyInput();
		public void onPhantomUpEvent(long eventTime);
		public void cancelTracking();
		}

		private static final int INITIAL_CAPACITY = 10;
		@@ -182,6 +183,15 @@ public final class PointerTrackerQueue {
		return false;
		}

		public synchronized void cancelAllPointerTracker() {
		final ArrayList<Element> expandableArray = mExpandableArrayOfActivePointers;
		final int arraySize = mArraySize;
		for (int index = 0; index < arraySize; index++) {
		final Element element = expandableArray.get(index);
		element.cancelTracking();
		}
		}

		@Override
		public synchronized String toString() {
		final StringBuilder sb = new StringBuilder();