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Support showing transient bars upon 3-finger swipe from trackpad

Browse Source 
Fixes: 285727229
Test: make sure 3-finger swipes from all directions can pull up task bar
and status bar

Change-Id: Ic0179f1eac7334d6c17a6697b22de167e0b75f80
This commit is contained in:
Tracy Zhou
2023-06-06 03:40:01 +00:00
parent a8d522035e
commit acc217e297
1 changed files with 52 additions and 0 deletions
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52
services/core/java/com/android/server/wm/SystemGesturesPointerEventListener.java
View File

@@ -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();