Fix an issue where the bubble overflow wouldn't animate when collapsing

When we collapse we'd update the selected state from the overflow to
the top bubble. This would update mExpandedView in stackView which
would mean the top bubble view would be told to animate instead of
the overflow even though it's still what's visually selected.

This changes the selected state to be set to the top bubble the
next time the stack is expanded instead of while its collapsing.

Bug: 196444758
Test: atest BubbleDataTest
Test: manual - navigate to the bubble overflow and tap outside, verify
               that the overflow animates out just like if you were
               collapsing from a convo bubble.
Change-Id: I1182d48916013dcc8aa15fb188543d8689b1f8a6
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/bubbles/BubbleData.java b/libs/WindowManager/Shell/src/com/android/wm/shell/bubbles/BubbleData.java
index d73ce69..b48bda3 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/bubbles/BubbleData.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/bubbles/BubbleData.java
@@ -699,10 +699,9 @@
         if (DEBUG_BUBBLE_DATA) {
             Log.d(TAG, "setSelectedBubbleInternal: " + bubble);
         }
-        if (!mShowingOverflow && Objects.equals(bubble, mSelectedBubble)) {
+        if (Objects.equals(bubble, mSelectedBubble)) {
             return;
         }
-        // Otherwise, if we are showing the overflow menu, return to the previously selected bubble.
         boolean isOverflow = bubble != null && BubbleOverflow.KEY.equals(bubble.getKey());
         if (bubble != null
                 && !mBubbles.contains(bubble)
@@ -771,6 +770,10 @@
                 Log.e(TAG, "Attempt to expand stack without selected bubble!");
                 return;
             }
+            if (mSelectedBubble.getKey().equals(mOverflow.getKey()) && !mBubbles.isEmpty()) {
+                // Show previously selected bubble instead of overflow menu when expanding.
+                setSelectedBubbleInternal(mBubbles.get(0));
+            }
             if (mSelectedBubble instanceof Bubble) {
                 ((Bubble) mSelectedBubble).markAsAccessedAt(mTimeSource.currentTimeMillis());
             }
@@ -779,16 +782,6 @@
             // Apply ordering and grouping rules from expanded -> collapsed, then save
             // the result.
             mStateChange.orderChanged |= repackAll();
-            // Save the state which should be returned to when expanded (with no other changes)
-
-            if (mShowingOverflow) {
-                // Show previously selected bubble instead of overflow menu on next expansion.
-                if (!mSelectedBubble.getKey().equals(mOverflow.getKey())) {
-                    setSelectedBubbleInternal(mSelectedBubble);
-                } else {
-                    setSelectedBubbleInternal(mBubbles.get(0));
-                }
-            }
             if (mBubbles.indexOf(mSelectedBubble) > 0) {
                 // Move the selected bubble to the top while collapsed.
                 int index = mBubbles.indexOf(mSelectedBubble);
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/bubbles/BubbleDataTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/bubbles/BubbleDataTest.java
index 3e3195f..b0312e6 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/bubbles/BubbleDataTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/bubbles/BubbleDataTest.java
@@ -869,6 +869,35 @@
         assertNotNull(mBubbleData.getOverflowBubbleWithKey(mBubbleA2.getKey()));
     }
 
+    /**
+     * Verifies that after the stack is collapsed with the overflow selected, it will select
+     * the top bubble upon next expansion.
+     */
+    @Test
+    public void test_collapseWithOverflowSelected_nextExpansion() {
+        sendUpdatedEntryAtTime(mEntryA1, 1000);
+        sendUpdatedEntryAtTime(mEntryA2, 2000);
+        mBubbleData.setExpanded(true);
+
+        mBubbleData.setListener(mListener);
+
+        // Select the overflow
+        mBubbleData.setShowingOverflow(true);
+        mBubbleData.setSelectedBubble(mBubbleData.getOverflow());
+        verifyUpdateReceived();
+        assertSelectionChangedTo(mBubbleData.getOverflow());
+
+        // Collapse
+        mBubbleData.setExpanded(false);
+        verifyUpdateReceived();
+        assertSelectionNotChanged();
+
+        // Expand (here we should select the new bubble)
+        mBubbleData.setExpanded(true);
+        verifyUpdateReceived();
+        assertSelectionChangedTo(mBubbleA2);
+    }
+
     private void verifyUpdateReceived() {
         verify(mListener).applyUpdate(mUpdateCaptor.capture());
         reset(mListener);
@@ -902,7 +931,7 @@
         assertWithMessage("selectionChanged").that(update.selectionChanged).isFalse();
     }
 
-    private void assertSelectionChangedTo(Bubble bubble) {
+    private void assertSelectionChangedTo(BubbleViewProvider bubble) {
         BubbleData.Update update = mUpdateCaptor.getValue();
         assertWithMessage("selectionChanged").that(update.selectionChanged).isTrue();
         assertWithMessage("selectedBubble").that(update.selectedBubble).isEqualTo(bubble);
@@ -925,7 +954,6 @@
         assertThat(update.overflowBubbles).isEqualTo(bubbles);
     }
 
-
     private BubbleEntry createBubbleEntry(int userId, String notifKey, String packageName,
             NotificationListenerService.Ranking ranking) {
         return createBubbleEntry(userId, notifKey, packageName, ranking, 1000);