Use ACTION_SCROLL to scroll TAPL workspace objects

A slow UI thread can cause the first ACTION_DOWN motion event to be handled as a long click before the pointer can be moved for a swipe. Directly using ACTION_SCROLL instead of the usualy ACTION_DOWN/MOVE/UP flow that is sensitive to lag.

Flag: N/A
Bug: 315379864
Test: TaplWorkspaceTest, TaplTwoPanelWorkspaceTest
Change-Id: Ib7fa8c88c953a55b8923ce6a104b5c205c129173
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index 91ef472..6c1a02f 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -21,6 +21,7 @@
 import static android.content.pm.PackageManager.MATCH_ALL;
 import static android.content.pm.PackageManager.MATCH_DISABLED_COMPONENTS;
 import static android.view.KeyEvent.ACTION_DOWN;
+import static android.view.MotionEvent.ACTION_SCROLL;
 import static android.view.MotionEvent.ACTION_UP;
 import static android.view.MotionEvent.AXIS_GESTURE_SWIPE_FINGER_COUNT;
 
@@ -1702,6 +1703,16 @@
                 "scrolling");
     }
 
+    void pointerScroll(float pointerX, float pointerY, Direction direction) {
+        executeAndWaitForLauncherEvent(
+                () -> injectEvent(getPointerMotionEvent(
+                        ACTION_SCROLL, pointerX, pointerY, direction)),
+                event -> TestProtocol.SCROLL_FINISHED_MESSAGE.equals(event.getClassName()),
+                () -> "Didn't receive a scroll end message: " + direction + " scroll from ("
+                        + pointerX + ", " + pointerY + ")",
+                "scrolling");
+    }
+
     // Inject a swipe gesture. Inject exactly 'steps' motion points, incrementing event time by a
     // fixed interval each time.
     public void linearGesture(int startX, int startY, int endX, int endY, int steps,
@@ -1765,6 +1776,41 @@
         return getContext().getResources();
     }
 
+    private static MotionEvent getPointerMotionEvent(
+            int action, float x, float y, Direction direction) {
+        MotionEvent.PointerCoords[] coordinates = new MotionEvent.PointerCoords[1];
+        coordinates[0] = new MotionEvent.PointerCoords();
+        coordinates[0].x = x;
+        coordinates[0].y = y;
+        boolean isVertical = direction == Direction.UP || direction == Direction.DOWN;
+        boolean isForward = direction == Direction.RIGHT || direction == Direction.DOWN;
+        coordinates[0].setAxisValue(
+                isVertical ? MotionEvent.AXIS_VSCROLL : MotionEvent.AXIS_HSCROLL,
+                isForward ? 1f : -1f);
+
+        MotionEvent.PointerProperties[] properties = new MotionEvent.PointerProperties[1];
+        properties[0] = new MotionEvent.PointerProperties();
+        properties[0].id = 0;
+        properties[0].toolType = MotionEvent.TOOL_TYPE_MOUSE;
+
+        final long downTime = SystemClock.uptimeMillis();
+        return MotionEvent.obtain(
+                downTime,
+                downTime,
+                action,
+                /* pointerCount= */ 1,
+                properties,
+                coordinates,
+                /* metaState= */ 0,
+                /* buttonState= */ 0,
+                /* xPrecision= */ 1f,
+                /* yPrecision= */ 1f,
+                /* deviceId= */ 0,
+                /* edgeFlags= */ 0,
+                InputDevice.SOURCE_CLASS_POINTER,
+                /* flags= */ 0);
+    }
+
     private static MotionEvent getTrackpadMotionEvent(long downTime, long eventTime,
             int action, float x, float y, int pointerCount, TrackpadGestureType gestureType) {
         MotionEvent.PointerProperties[] pointerProperties =
diff --git a/tests/tapl/com/android/launcher3/tapl/Workspace.java b/tests/tapl/com/android/launcher3/tapl/Workspace.java
index f8fa00c..1b0e59c 100644
--- a/tests/tapl/com/android/launcher3/tapl/Workspace.java
+++ b/tests/tapl/com/android/launcher3/tapl/Workspace.java
@@ -695,10 +695,9 @@
      */
     public void flingForward() {
         try (LauncherInstrumentation.Closable e = mLauncher.eventsCheck()) {
-            final UiObject2 workspace = verifyActiveContainer();
-            mLauncher.scroll(workspace, Direction.RIGHT,
-                    new Rect(0, 0, mLauncher.getEdgeSensitivityWidth() + 1, 0),
-                    FLING_STEPS, false);
+            Rect workspaceBounds = mLauncher.getVisibleBounds(verifyActiveContainer());
+            mLauncher.pointerScroll(
+                    workspaceBounds.centerX(), workspaceBounds.centerY(), Direction.RIGHT);
             verifyActiveContainer();
         }
     }
@@ -709,10 +708,9 @@
      */
     public void flingBackward() {
         try (LauncherInstrumentation.Closable e = mLauncher.eventsCheck()) {
-            final UiObject2 workspace = verifyActiveContainer();
-            mLauncher.scroll(workspace, Direction.LEFT,
-                    new Rect(mLauncher.getEdgeSensitivityWidth() + 1, 0, 0, 0),
-                    FLING_STEPS, false);
+            Rect workspaceBounds = mLauncher.getVisibleBounds(verifyActiveContainer());
+            mLauncher.pointerScroll(
+                    workspaceBounds.centerX(), workspaceBounds.centerY(), Direction.LEFT);
             verifyActiveContainer();
         }
     }