Fix NSSL migration and falsing

Touch events were getting processed multiple times by the
FalsingManager, leading to incorrect falsing and the UI being
reset. These fixes ensure each touch gets processed once, and by the
correct owner.

Fixes: 314302258
Test: manual; observe falsing logs when swiping on shade
Flag: ACONFIG com.android.systemui.keyguard_shade_migration_nssl
DEVELOPMENT

Change-Id: I228090b917a25a7d1ac459c10f0a1d98167d435a

2 files changed, 32 insertions, 11 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt b/packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt
index 2438298f6a6e..7f8be1cc7e55 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/LockscreenShadeTransitionController.kt
@@ -22,6 +22,7 @@ import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dump.DumpManager
 import com.android.systemui.keyguard.WakefulnessLifecycle
 import com.android.systemui.keyguard.domain.interactor.NaturalScrollingSettingObserver
+import com.android.systemui.keyguard.shared.KeyguardShadeMigrationNssl
 import com.android.systemui.media.controls.ui.MediaHierarchyManager
 import com.android.systemui.navigationbar.gestural.Utilities.isTrackpadScroll
 import com.android.systemui.plugins.ActivityStarter
@@ -888,6 +889,9 @@ class DragDownHelper(
                     isDraggingDown = false
                     isTrackpadReverseScroll = false
                     shadeRepository.setLegacyLockscreenShadeTracking(false)
+                    if (KeyguardShadeMigrationNssl.isEnabled) {
+                        return true
+                    }
                 } else {
                     stopDragging()
                     return false
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java
index abc04b87f831..a30c29456b3b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java
@@ -69,6 +69,7 @@ import com.android.systemui.dump.DumpManager;
 import com.android.systemui.flags.FeatureFlagsClassic;
 import com.android.systemui.flags.Flags;
 import com.android.systemui.keyguard.data.repository.KeyguardTransitionRepository;
+import com.android.systemui.keyguard.shared.KeyguardShadeMigrationNssl;
 import com.android.systemui.keyguard.shared.model.KeyguardState;
 import com.android.systemui.keyguard.shared.model.TransitionStep;
 import com.android.systemui.media.controls.ui.KeyguardMediaController;
@@ -1957,18 +1958,34 @@ public class NotificationStackScrollLayoutController implements Dumpable {
                     mView.dispatchDownEventToScroller(ev);
                 }
             }
-            boolean scrollerWantsIt = false;
-            if (mLongPressedView == null && mView.isExpanded() && !mSwipeHelper.isSwiping()
-                    && !expandingNotification && !mView.getDisallowScrollingInThisMotion()) {
-                scrollerWantsIt = mView.onScrollTouch(ev);
-            }
             boolean horizontalSwipeWantsIt = false;
-            if (mLongPressedView == null && !mView.isBeingDragged()
-                    && !expandingNotification
-                    && !mView.getExpandedInThisMotion()
-                    && !onlyScrollingInThisMotion
-                    && !mView.getDisallowDismissInThisMotion()) {
-                horizontalSwipeWantsIt = mSwipeHelper.onTouchEvent(ev);
+            boolean scrollerWantsIt = false;
+            if (KeyguardShadeMigrationNssl.isEnabled()) {
+                // Reverse the order relative to the else statement. onScrollTouch will reset on an
+                // UP event, causing horizontalSwipeWantsIt to be set to true on vertical swipes.
+                if (mLongPressedView == null && !mView.isBeingDragged()
+                        && !expandingNotification
+                        && !mView.getExpandedInThisMotion()
+                        && !onlyScrollingInThisMotion
+                        && !mView.getDisallowDismissInThisMotion()) {
+                    horizontalSwipeWantsIt = mSwipeHelper.onTouchEvent(ev);
+                }
+                if (mLongPressedView == null && mView.isExpanded() && !mSwipeHelper.isSwiping()
+                        && !expandingNotification && !mView.getDisallowScrollingInThisMotion()) {
+                    scrollerWantsIt = mView.onScrollTouch(ev);
+                }
+            } else {
+                if (mLongPressedView == null && mView.isExpanded() && !mSwipeHelper.isSwiping()
+                        && !expandingNotification && !mView.getDisallowScrollingInThisMotion()) {
+                    scrollerWantsIt = mView.onScrollTouch(ev);
+                }
+                if (mLongPressedView == null && !mView.isBeingDragged()
+                        && !expandingNotification
+                        && !mView.getExpandedInThisMotion()
+                        && !onlyScrollingInThisMotion
+                        && !mView.getDisallowDismissInThisMotion()) {
+                    horizontalSwipeWantsIt = mSwipeHelper.onTouchEvent(ev);
+                }
             }
 
             // Check if we need to clear any snooze leavebehinds