Update expanded view drop target size based on value from shell

When a bubble drag starts, shell sends the current expanded view size
over as part of BubbleBarData. Update the size stored in
BubblePinController based on latest value.
Update drop target visual to match the spec. It should have 24dp insets
compared to expanded view and 28dp corner radius.

Bug: 330585402
Test: drag bubble in landscape, check that drop target for expanded view
  matches with what is shown when expanded view is dragged
Test: drag bubble in portrait, check that the drop target for expanded
  view, matches with what is shown when expanded view is dragged
Flag: ACONFIG com.android.wm.shell.enable_bubble_bar DEVELOPMENT
Change-Id: Ic11c4c5c675107543ba08f24a4138cda422d24c1

quickstep/res/drawable/bg_bubble_expanded_view_drop_target.xml

@@ -13,12 +13,15 @@
   ~ See the License for the specific language governing permissions and
   ~ limitations under the License.
   -->
-<shape xmlns:android="http://schemas.android.com/apk/res/android"
+<inset xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:androidprv="http://schemas.android.com/apk/prv/res/android"
-    android:shape="rectangle">
-    <corners android:radius="@dimen/bubble_expanded_view_drop_target_corner_radius" />
-    <solid android:color="@color/bubblebar_drop_target_bg_color" />
-    <stroke
-        android:width="1dp"
-        android:color="?androidprv:attr/materialColorPrimaryContainer" />
-</shape>
+    android:inset="@dimen/bubble_expanded_view_drop_target_padding">
+    <shape
+        android:shape="rectangle">
+        <corners android:radius="@dimen/bubble_expanded_view_drop_target_corner_radius" />
+        <solid android:color="@color/bubblebar_drop_target_bg_color" />
+        <stroke
+            android:width="1dp"
+            android:color="?androidprv:attr/materialColorPrimaryContainer" />
+    </shape>
+</inset>

quickstep/res/layout/bubble_expanded_view_drop_target.xml

@@ -16,8 +16,8 @@
 
 <!-- TODO(b/330585402): replace 600dp height with calculated value -->
 <View xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="@dimen/bubble_expanded_view_drop_target_width"
-    android:layout_height="600dp"
+    android:layout_width="@dimen/bubble_expanded_view_drop_target_default_width"
+    android:layout_height="@dimen/bubble_expanded_view_drop_target_default_height"
     android:layout_margin="@dimen/bubble_expanded_view_drop_target_margin"
     android:background="@drawable/bg_bubble_expanded_view_drop_target"
     android:elevation="@dimen/bubblebar_elevation" />

quickstep/res/values/dimens.xml

@@ -456,8 +456,10 @@
 
     <!-- Bubble bar drop target -->
     <dimen name="bubblebar_drop_target_corner_radius">36dp</dimen>
-    <dimen name="bubble_expanded_view_drop_target_corner_radius">16dp</dimen>
-    <dimen name="bubble_expanded_view_drop_target_width">412dp</dimen>
+    <dimen name="bubble_expanded_view_drop_target_default_width">412dp</dimen>
+    <dimen name="bubble_expanded_view_drop_target_default_height">600dp</dimen>
+    <dimen name="bubble_expanded_view_drop_target_corner_radius">28dp</dimen>
+    <dimen name="bubble_expanded_view_drop_target_padding">24dp</dimen>
     <dimen name="bubble_expanded_view_drop_target_margin">16dp</dimen>
 
     <!-- Launcher splash screen -->

quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java

@@ -150,6 +150,7 @@ public class BubbleBarController extends IBubblesListener.Stub {
     private BubbleBarViewController mBubbleBarViewController;
     private BubbleStashController mBubbleStashController;
     private BubbleStashedHandleViewController mBubbleStashedHandleViewController;
+    private BubblePinController mBubblePinController;
 
     // Keep track of bubble bar bounds sent to shell to avoid sending duplicate updates
     private final Rect mLastSentBubbleBarBounds = new Rect();
@@ -169,6 +170,7 @@ public class BubbleBarController extends IBubblesListener.Stub {
         BubbleBarLocation bubbleBarLocation;
         List<RemovedBubble> removedBubbles;
         List<String> bubbleKeysInOrder;
+        Point expandedViewDropTargetSize;
 
         // These need to be loaded in the background
         BubbleBarBubble addedBubble;
@@ -186,6 +188,7 @@ public class BubbleBarController extends IBubblesListener.Stub {
             bubbleBarLocation = update.bubbleBarLocation;
             removedBubbles = update.removedBubbles;
             bubbleKeysInOrder = update.bubbleKeysInOrder;
+            expandedViewDropTargetSize = update.expandedViewDropTargetSize;
         }
     }
 
@@ -216,6 +219,7 @@ public class BubbleBarController extends IBubblesListener.Stub {
         mBubbleBarViewController = bubbleControllers.bubbleBarViewController;
         mBubbleStashController = bubbleControllers.bubbleStashController;
         mBubbleStashedHandleViewController = bubbleControllers.bubbleStashedHandleViewController;
+        mBubblePinController = bubbleControllers.bubblePinController;
 
         bubbleControllers.runAfterInit(() -> {
             mBubbleBarViewController.setHiddenForBubbles(
@@ -419,6 +423,9 @@ public class BubbleBarController extends IBubblesListener.Stub {
                 updateBubbleBarLocationInternal(update.bubbleBarLocation);
             }
         }
+        if (update.expandedViewDropTargetSize != null) {
+            mBubblePinController.setDropTargetSize(update.expandedViewDropTargetSize);
+        }
     }
 
     /** Tells WMShell to show the currently selected bubble. */

quickstep/src/com/android/launcher3/taskbar/bubbles/BubblePinController.kt

@@ -37,12 +37,17 @@ class BubblePinController(
     screenSizeProvider: () -> Point
 ) : BaseBubblePinController(screenSizeProvider) {
 
+    var dropTargetSize: Point? = null
+
     private lateinit var bubbleBarViewController: BubbleBarViewController
     private lateinit var bubbleStashController: BubbleStashController
     private var exclRectWidth: Float = 0f
     private var exclRectHeight: Float = 0f
 
     private var dropTargetView: View? = null
+    // Fallback width and height in case shell has not sent the size over
+    private var dropTargetDefaultWidth: Int = 0
+    private var dropTargetDefaultHeight: Int = 0
     private var dropTargetMargin: Int = 0
 
     fun init(bubbleControllers: BubbleControllers) {
@@ -50,6 +55,14 @@ class BubblePinController(
         bubbleStashController = bubbleControllers.bubbleStashController
         exclRectWidth = context.resources.getDimension(R.dimen.bubblebar_dismiss_zone_width)
         exclRectHeight = context.resources.getDimension(R.dimen.bubblebar_dismiss_zone_height)
+        dropTargetDefaultWidth =
+            context.resources.getDimensionPixelSize(
+                R.dimen.bubble_expanded_view_drop_target_default_width
+            )
+        dropTargetDefaultHeight =
+            context.resources.getDimensionPixelSize(
+                R.dimen.bubble_expanded_view_drop_target_default_height
+            )
         dropTargetMargin =
             context.resources.getDimensionPixelSize(R.dimen.bubble_expanded_view_drop_target_margin)
     }
@@ -75,7 +88,6 @@ class BubblePinController(
         return LayoutInflater.from(context)
             .inflate(R.layout.bubble_expanded_view_drop_target, container, false)
             .also { view ->
-                // TODO(b/330585402): dynamic height for the drop target based on actual height
                 dropTargetView = view
                 container.addView(view)
             }
@@ -88,6 +100,8 @@ class BubblePinController(
         val bubbleBarBounds = bubbleBarViewController.bubbleBarBounds
         dropTargetView?.updateLayoutParams<FrameLayout.LayoutParams> {
             gravity = BOTTOM or (if (onLeft) LEFT else RIGHT)
+            width = dropTargetSize?.x ?: dropTargetDefaultWidth
+            height = dropTargetSize?.y ?: dropTargetDefaultHeight
             bottomMargin =
                 -bubbleStashController.bubbleBarTranslationY.toInt() +
                     bubbleBarBounds.height() +