Fix bubble position with IME when the bubble has a custom height

Usually bubbles are full height, but it is possible for a bubble
to have a smaller height. In this case the pointer didn't align
correctly when the IME came up.

This change makes it so that the expanded view will translate up
a bit with the bubble (only when the view isn't full height and has
space to translate), which keeps it aligned with the pointer.
This is a bit of a nicer experience because the IME doesn't overlap
as much of the app as it would before.

Test: manual - have a bubble that has a small height, focus the IME
             => verify the pointer follows the bubble
Bug: 223906486
Change-Id: I1542f06887ccc8370a762fc6ebe42aca26559cb4

libs/WindowManager/Shell/src/com/android/wm/shell/bubbles/BubbleExpandedView.java

@@ -112,6 +112,7 @@ public class BubbleExpandedView extends LinearLayout {
     private ShapeDrawable mRightPointer;
     private float mCornerRadius = 0f;
     private int mBackgroundColorFloating;
+    private boolean mUsingMaxHeight;
 
     @Nullable private Bubble mBubble;
     private PendingIntent mPendingIntent;
@@ -621,6 +622,13 @@ public class BubbleExpandedView extends LinearLayout {
         return prevWasIntentBased != newIsIntentBased;
     }
 
+    /**
+     * Whether the bubble is using all available height to display or not.
+     */
+    public boolean isUsingMaxHeight() {
+        return mUsingMaxHeight;
+    }
+
     void updateHeight() {
         if (mExpandedViewContainerLocation == null) {
             return;
@@ -632,6 +640,7 @@ public class BubbleExpandedView extends LinearLayout {
             float height = desiredHeight == MAX_HEIGHT
                     ? maxHeight
                     : Math.min(desiredHeight, maxHeight);
+            mUsingMaxHeight = height == maxHeight;
             FrameLayout.LayoutParams lp = mIsOverflow
                     ? (FrameLayout.LayoutParams) mOverflowView.getLayoutParams()
                     : (FrameLayout.LayoutParams) mTaskView.getLayoutParams();

libs/WindowManager/Shell/src/com/android/wm/shell/bubbles/BubbleStackView.java

@@ -2355,7 +2355,14 @@ public class BubbleStackView extends FrameLayout
             }
         } else if (mPositioner.showBubblesVertically() && mIsExpanded
                 && mExpandedBubble != null && mExpandedBubble.getExpandedView() != null) {
+            float selectedY = mPositioner.getExpandedBubbleXY(getState().selectedIndex,
+                    getState()).y;
+            float newExpandedViewTop = mPositioner.getExpandedViewY(mExpandedBubble, selectedY);
             mExpandedBubble.getExpandedView().setImeVisible(visible);
+            if (!mExpandedBubble.getExpandedView().isUsingMaxHeight()) {
+                mExpandedViewContainer.animate().translationY(newExpandedViewTop);
+            }
+
             List<Animator> animList = new ArrayList();
             for (int i = 0; i < mBubbleContainer.getChildCount(); i++) {
                 View child = mBubbleContainer.getChildAt(i);