Merge "Support showing transient bars upon 3-finger swipe from trackpad" into udc-qpr-dev (e1467ef5) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wm/SystemGesturesPointerEventListener.java

+52 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,8 @@ import static android.view.DisplayCutout.BOUNDS_POSITION_BOTTOM;
		import static android.view.DisplayCutout.BOUNDS_POSITION_LEFT;
		import static android.view.DisplayCutout.BOUNDS_POSITION_RIGHT;
		import static android.view.DisplayCutout.BOUNDS_POSITION_TOP;
		import static android.view.MotionEvent.AXIS_GESTURE_SWIPE_FINGER_COUNT;
		import static android.view.MotionEvent.CLASSIFICATION_MULTI_FINGER_SWIPE;

		import android.annotation.NonNull;
		import android.content.Context;
		@@ -59,6 +61,12 @@ class SystemGesturesPointerEventListener implements PointerEventListener {
		private static final int SWIPE_FROM_RIGHT = 3;
		private static final int SWIPE_FROM_LEFT = 4;

		private static final int TRACKPAD_SWIPE_NONE = 0;
		private static final int TRACKPAD_SWIPE_FROM_TOP = 1;
		private static final int TRACKPAD_SWIPE_FROM_BOTTOM = 2;
		private static final int TRACKPAD_SWIPE_FROM_RIGHT = 3;
		private static final int TRACKPAD_SWIPE_FROM_LEFT = 4;

		private final Context mContext;
		private final Handler mHandler;
		private int mDisplayCutoutTouchableRegionSize;
		@@ -207,6 +215,25 @@ class SystemGesturesPointerEventListener implements PointerEventListener {
		break;
		case MotionEvent.ACTION_MOVE:
		if (mSwipeFireable) {
		int trackpadSwipe = detectTrackpadThreeFingerSwipe(event);
		mSwipeFireable = trackpadSwipe == TRACKPAD_SWIPE_NONE;
		if (!mSwipeFireable) {
		if (trackpadSwipe == TRACKPAD_SWIPE_FROM_TOP) {
		if (DEBUG) Slog.d(TAG, "Firing onSwipeFromTop from trackpad");
		mCallbacks.onSwipeFromTop();
		} else if (trackpadSwipe == TRACKPAD_SWIPE_FROM_BOTTOM) {
		if (DEBUG) Slog.d(TAG, "Firing onSwipeFromBottom from trackpad");
		mCallbacks.onSwipeFromBottom();
		} else if (trackpadSwipe == TRACKPAD_SWIPE_FROM_RIGHT) {
		if (DEBUG) Slog.d(TAG, "Firing onSwipeFromRight from trackpad");
		mCallbacks.onSwipeFromRight();
		} else if (trackpadSwipe == TRACKPAD_SWIPE_FROM_LEFT) {
		if (DEBUG) Slog.d(TAG, "Firing onSwipeFromLeft from trackpad");
		mCallbacks.onSwipeFromLeft();
		}
		break;
		}

		final int swipe = detectSwipe(event);
		mSwipeFireable = swipe == SWIPE_NONE;
		if (swipe == SWIPE_FROM_TOP) {
		@@ -300,6 +327,31 @@ class SystemGesturesPointerEventListener implements PointerEventListener {
		return mDownPointers - 1;
		}

		private int detectTrackpadThreeFingerSwipe(MotionEvent move) {
		if (!isTrackpadThreeFingerSwipe(move)) {
		return TRACKPAD_SWIPE_NONE;
		}

		float dx = move.getX() - mDownX[0];
		float dy = move.getY() - mDownY[0];
		if (Math.abs(dx) < Math.abs(dy)) {
		if (Math.abs(dy) > mSwipeDistanceThreshold) {
		return dy > 0 ? TRACKPAD_SWIPE_FROM_TOP : TRACKPAD_SWIPE_FROM_BOTTOM;
		}
		} else {
		if (Math.abs(dx) > mSwipeDistanceThreshold) {
		return dx > 0 ? TRACKPAD_SWIPE_FROM_LEFT : TRACKPAD_SWIPE_FROM_RIGHT;
		}
		}

		return TRACKPAD_SWIPE_NONE;
		}

		private static boolean isTrackpadThreeFingerSwipe(MotionEvent event) {
		return event.getClassification() == CLASSIFICATION_MULTI_FINGER_SWIPE
		&& event.getAxisValue(AXIS_GESTURE_SWIPE_FINGER_COUNT) == 3;
		}

		private int detectSwipe(MotionEvent move) {
		final int historySize = move.getHistorySize();
		final int pointerCount = move.getPointerCount();