Stop mouse click+drag from opening all apps

This change is intended for the desktop use case.

Bug: 388898277
Test: Manual
Flag: com.android.launcher3.enable_mouse_interaction_changes
Change-Id: Ibbca58f1e98a6648be68fc7e3b6337f5c78160da

src/com/android/launcher3/touch/AbstractStateChangeTouchController.java

@@ -16,6 +16,7 @@
 package com.android.launcher3.touch;
 
 import static com.android.app.animation.Interpolators.scrollInterpolatorForVelocity;
+import static com.android.launcher3.Flags.enableMouseInteractionChanges;
 import static com.android.launcher3.LauncherAnimUtils.SUCCESS_TRANSITION_PROGRESS;
 import static com.android.launcher3.LauncherAnimUtils.TABLET_BOTTOM_SHEET_SUCCESS_TRANSITION_PROGRESS;
 import static com.android.launcher3.LauncherAnimUtils.newCancelListener;
@@ -33,6 +34,7 @@ import static com.android.launcher3.util.window.RefreshRateTracker.getSingleFram
 
 import android.animation.Animator.AnimatorListener;
 import android.animation.ValueAnimator;
+import android.view.InputDevice;
 import android.view.MotionEvent;
 
 import com.android.launcher3.Launcher;
@@ -107,7 +109,9 @@ public abstract class AbstractStateChangeTouchController
                 ignoreSlopWhenSettling = true;
             } else {
                 directionsToDetectScroll = getSwipeDirection();
-                if (directionsToDetectScroll == 0) {
+                boolean ignoreMouseScroll = ev.getSource() == InputDevice.SOURCE_MOUSE
+                        && enableMouseInteractionChanges();
+                if (directionsToDetectScroll == 0 || ignoreMouseScroll) {
                     mNoIntercept = true;
                     return false;
                 }