diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index f32f204..ae3407e 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -368,6 +368,7 @@
     <dimen name="bubblebar_stashed_handle_height">@dimen/taskbar_stashed_handle_height</dimen>
     <dimen name="bubblebar_pointer_size">8dp</dimen>
     <dimen name="bubblebar_elevation">1dp</dimen>
+    <dimen name="bubblebar_hotseat_adjustment_threshold">90dp</dimen>
 
     <dimen name="bubblebar_icon_size">50dp</dimen>
     <dimen name="bubblebar_badge_size">24dp</dimen>
diff --git a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
index 4e834ec..e6dfe0f 100644
--- a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
@@ -41,6 +41,7 @@
 import com.android.launcher3.logging.InstanceId;
 import com.android.launcher3.logging.InstanceIdSequence;
 import com.android.launcher3.model.data.ItemInfo;
+import com.android.launcher3.taskbar.bubbles.BubbleBarController;
 import com.android.launcher3.uioverrides.QuickstepLauncher;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.MultiPropertyFactory;
@@ -202,10 +203,18 @@
         return mTaskbarLauncherStateController.applyState(fromInit ? 0 : duration, startAnimation);
     }
 
+    @Override
     public void refreshResumedState() {
         onLauncherResumedOrPaused(mLauncher.hasBeenResumed());
     }
 
+    @Override
+    public void adjustHotseatForBubbleBar(boolean isBubbleBarVisible) {
+        if (mLauncher.getHotseat() != null) {
+            mLauncher.getHotseat().adjustForBubbleBar(isBubbleBarVisible);
+        }
+    }
+
     /**
      * Create Taskbar animation when going from an app to Launcher as part of recents transition.
      * @param toState If known, the state we will end up in when reaching Launcher.
@@ -327,6 +336,21 @@
         return mTaskbarInAppDisplayProgress.value > 0;
     }
 
+    public boolean isBubbleBarEnabled() {
+        return BubbleBarController.BUBBLE_BAR_ENABLED;
+    }
+
+    /** Whether the bubble bar has any bubbles. */
+    public boolean hasBubbles() {
+        if (mControllers == null) {
+            return false;
+        }
+        if (mControllers.bubbleControllers.isEmpty()) {
+            return false;
+        }
+        return mControllers.bubbleControllers.get().bubbleBarViewController.hasBubbles();
+    }
+
     @Override
     public void onExpandPip() {
         super.onExpandPip();
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 3a1ed0b..7da8f9e 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -302,6 +302,11 @@
         mNavMode = DisplayController.getNavigationMode(this);
     }
 
+    /** Called when the visibility of the bubble bar changed. */
+    public void bubbleBarVisibilityChanged(boolean isVisible) {
+        mControllers.uiController.adjustHotseatForBubbleBar(isVisible);
+        mControllers.taskbarViewController.resetIconAlignmentController();
+    }
 
     public void init(@NonNull TaskbarSharedState sharedState) {
         mImeDrawsImeNavBar = getBoolByName(IME_DRAWS_IME_NAV_BAR_RES_NAME, getResources(), false);
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
index 6fad655..139e8f0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
@@ -43,7 +43,6 @@
 import com.android.systemui.shared.recents.model.Task;
 
 import java.io.PrintWriter;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.stream.Stream;
 
@@ -336,4 +335,7 @@
                 .stream()
                 .map(mControllers.taskbarPopupController::createSplitShortcutFactory);
     }
+
+    /** Adjusts the hotseat for the bubble bar. */
+    public void adjustHotseatForBubbleBar(boolean isBubbleBarVisible) {}
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 3d22e78..54840f1 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -448,6 +448,11 @@
         }
     }
 
+    /** Resets the icon alignment controller so that it can be recreated again later. */
+    void resetIconAlignmentController() {
+        mIconAlignControllerLazy = null;
+    }
+
     /**
      * Creates an animation for aligning the Taskbar icons with the provided Launcher device profile
      */
@@ -564,9 +569,18 @@
                 continue;
             }
 
-            float hotseatIconCenter = hotseatPadding.left
-                    + (hotseatCellSize + borderSpacing) * positionInHotseat
-                    + hotseatCellSize / 2f;
+            float hotseatAdjustedBorderSpace =
+                    launcherDp.getHotseatAdjustedBorderSpaceForBubbleBar(child.getContext());
+            float hotseatIconCenter;
+            if (bubbleBarHasBubbles() && hotseatAdjustedBorderSpace != 0) {
+                hotseatIconCenter = hotseatPadding.left + hotseatCellSize
+                        + (hotseatCellSize + hotseatAdjustedBorderSpace) * positionInHotseat
+                        + hotseatCellSize / 2f;
+            } else {
+                hotseatIconCenter = hotseatPadding.left
+                        + (hotseatCellSize + borderSpacing) * positionInHotseat
+                        + hotseatCellSize / 2f;
+            }
             float childCenter = (child.getLeft() + child.getRight()) / 2f;
             float toX = hotseatIconCenter - childCenter;
             if (child instanceof Reorderable) {
@@ -588,6 +602,11 @@
         return controller;
     }
 
+    private boolean bubbleBarHasBubbles() {
+        return mControllers.bubbleControllers.isPresent()
+                && mControllers.bubbleControllers.get().bubbleBarViewController.hasBubbles();
+    }
+
     public void onRotationChanged(DeviceProfile deviceProfile) {
         if (!mControllers.uiController.isIconAlignedWithHotseat()) {
             // We only translate on rotation when icon is aligned with hotseat
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
index 90f4748..bd11efd 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
@@ -190,8 +190,10 @@
         mBubbleStashedHandleViewController = bubbleControllers.bubbleStashedHandleViewController;
 
         bubbleControllers.runAfterInit(() -> {
-            mBubbleBarViewController.setHiddenForBubbles(!BUBBLE_BAR_ENABLED);
-            mBubbleStashedHandleViewController.setHiddenForBubbles(!BUBBLE_BAR_ENABLED);
+            mBubbleBarViewController.setHiddenForBubbles(
+                    !BUBBLE_BAR_ENABLED || mBubbles.isEmpty());
+            mBubbleStashedHandleViewController.setHiddenForBubbles(
+                    !BUBBLE_BAR_ENABLED || mBubbles.isEmpty());
             mBubbleBarViewController.setUpdateSelectedBubbleAfterCollapse(
                     key -> setSelectedBubble(mBubbles.get(key)));
         });
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
index 5c607c9..065dd58 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
@@ -75,7 +75,7 @@
     // Whether the bar is hidden for a sysui state.
     private boolean mHiddenForSysui;
     // Whether the bar is hidden because there are no bubbles.
-    private boolean mHiddenForNoBubbles;
+    private boolean mHiddenForNoBubbles = true;
     private boolean mShouldShowEducation;
 
     public BubbleBarViewController(TaskbarActivityContext activity, BubbleBarView barView) {
@@ -212,6 +212,7 @@
         if (mHiddenForNoBubbles != hidden) {
             mHiddenForNoBubbles = hidden;
             updateVisibilityForStateChange();
+            mActivity.bubbleBarVisibilityChanged(!hidden);
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index b50ab97..00c7461 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -133,7 +133,6 @@
 import com.android.launcher3.uioverrides.touchcontrollers.TransposedQuickSwitchTouchController;
 import com.android.launcher3.uioverrides.touchcontrollers.TwoButtonNavbarTouchController;
 import com.android.launcher3.util.ActivityOptionsWrapper;
-import com.android.launcher3.util.BackPressHandler;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.Executors;
 import com.android.launcher3.util.IntSet;
@@ -1272,6 +1271,16 @@
         return overviewCommandHelper == null || overviewCommandHelper.canStartHomeSafely();
     }
 
+    @Override
+    public boolean isBubbleBarEnabled() {
+        return (mTaskbarUIController != null && mTaskbarUIController.isBubbleBarEnabled());
+    }
+
+    @Override
+    public boolean hasBubbles() {
+        return (mTaskbarUIController != null && mTaskbarUIController.hasBubbles());
+    }
+
     private static final class LauncherTaskViewController extends
             TaskViewTouchController<Launcher> {
 
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 1079e00..c6fce28 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -385,6 +385,9 @@
     <dimen name="taskbar_button_margin_split">0dp</dimen>
     <dimen name="taskbar_button_margin_6_5">0dp</dimen>
 
+    <!-- Bubble bar (placeholders to compile in Launcher3 without Quickstep) -->
+    <dimen name="bubblebar_hotseat_adjustment_threshold">0dp</dimen>
+
     <!-- Size of the maximum radius for the enforced rounded rectangles. -->
     <dimen name="enforced_rounded_corner_max_radius">16dp</dimen>
 
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index baa170b..9124317 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -220,6 +220,9 @@
     private final int mMinHotseatQsbWidthPx;
     private final int mMaxHotseatIconSpacePx;
     public final int inlineNavButtonsEndSpacingPx;
+    // Space required for the bubble bar between the hotseat and the edge of the screen. If there's
+    // not enough space, the hotseat will adjust itself for the bubble bar.
+    private final int mBubbleBarSpaceThresholdPx;
 
     // Bottom sheets
     public int bottomSheetTopPadding;
@@ -574,6 +577,9 @@
             hotseatBarEndOffset = 0;
         }
 
+        mBubbleBarSpaceThresholdPx =
+                res.getDimensionPixelSize(R.dimen.bubblebar_hotseat_adjustment_threshold);
+
         // Needs to be calculated after hotseatBarSizePx is correct,
         // for the available height to be correct
         if (mIsResponsiveGrid) {
@@ -1562,6 +1568,32 @@
         paddings.bottom -= insets.bottom;
     }
 
+
+    /**
+     * Returns the new border space that should be used between hotseat icons after adjusting it to
+     * the bubble bar.
+     *
+     * <p>If there's no adjustment needed, this method returns {@code 0}.
+     */
+    public float getHotseatAdjustedBorderSpaceForBubbleBar(Context context) {
+        // only need to adjust when QSB is on top of the hotseat.
+        if (isQsbInline) {
+            return 0;
+        }
+
+        // no need to adjust if there's enough space for the bubble bar to the right of the hotseat.
+        if (getHotseatLayoutPadding(context).right > mBubbleBarSpaceThresholdPx) {
+            return 0;
+        }
+
+        // The adjustment is shrinking the hotseat's width by 1 icon on either side.
+        int iconsWidth =
+                iconSizePx * numShownHotseatIcons + hotseatBorderSpace * (numShownHotseatIcons - 1);
+        int newWidth = iconsWidth - 2 * iconSizePx;
+        // Evenly space the icons within the boundaries of the new width.
+        return (float) (newWidth - iconSizePx * numShownHotseatIcons) / (numShownHotseatIcons - 1);
+    }
+
     /**
      * Returns the padding for hotseat view
      */
@@ -2169,5 +2201,4 @@
                     mIsGestureMode, mViewScaleProvider, mOverrideProvider);
         }
     }
-
 }
diff --git a/src/com/android/launcher3/Hotseat.java b/src/com/android/launcher3/Hotseat.java
index 03afba1..3b12b86 100644
--- a/src/com/android/launcher3/Hotseat.java
+++ b/src/com/android/launcher3/Hotseat.java
@@ -16,6 +16,12 @@
 
 package com.android.launcher3;
 
+import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_X;
+import static com.android.launcher3.util.MultiTranslateDelegate.INDEX_BUBBLE_ADJUSTMENT_ANIM;
+
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
@@ -27,6 +33,10 @@
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
+import com.android.launcher3.util.HorizontalInsettableView;
+import com.android.launcher3.util.MultiTranslateDelegate;
+import com.android.launcher3.views.ActivityContext;
+
 /**
  * View class that represents the bottom row of the home screen.
  */
@@ -34,6 +44,7 @@
 
     // Ratio of empty space, qsb should take up to appear visually centered.
     public static final float QSB_CENTER_FACTOR = .325f;
+    private static final int BUBBLE_BAR_ADJUSTMENT_ANIMATION_DURATION_MS = 250;
 
     @ViewDebug.ExportedProperty(category = "launcher")
     private boolean mHasVerticalHotseat;
@@ -72,9 +83,36 @@
     }
 
     public void resetLayout(boolean hasVerticalHotseat) {
+        ActivityContext activityContext = ActivityContext.lookupContext(getContext());
+        boolean bubbleBarEnabled = activityContext.isBubbleBarEnabled();
+        boolean hasBubbles = activityContext.hasBubbles();
         removeAllViewsInLayout();
         mHasVerticalHotseat = hasVerticalHotseat;
         DeviceProfile dp = mActivity.getDeviceProfile();
+
+        if (bubbleBarEnabled) {
+            float adjustedBorderSpace = dp.getHotseatAdjustedBorderSpaceForBubbleBar(getContext());
+            if (hasBubbles && Float.compare(adjustedBorderSpace, 0f) != 0) {
+                getShortcutsAndWidgets().setTranslationProvider(child -> {
+                    int index = getShortcutsAndWidgets().indexOfChild(child);
+                    float borderSpaceDelta = adjustedBorderSpace - dp.hotseatBorderSpace;
+                    return dp.iconSizePx + index * borderSpaceDelta;
+                });
+                if (mQsb instanceof HorizontalInsettableView) {
+                    HorizontalInsettableView insettableQsb = (HorizontalInsettableView) mQsb;
+                    final float insetFraction = (float) dp.iconSizePx / dp.hotseatQsbWidth;
+                    // post this to the looper so that QSB has a chance to redraw itself, e.g.
+                    // after device rotation
+                    mQsb.post(() -> insettableQsb.setHorizontalInsets(insetFraction));
+                }
+            } else {
+                getShortcutsAndWidgets().setTranslationProvider(null);
+                if (mQsb instanceof HorizontalInsettableView) {
+                    ((HorizontalInsettableView) mQsb).setHorizontalInsets(0);
+                }
+            }
+        }
+
         resetCellSize(dp);
         if (hasVerticalHotseat) {
             setGridSize(1, dp.numShownHotseatIcons);
@@ -83,6 +121,62 @@
         }
     }
 
+    /**
+     * Adjust the hotseat icons for the bubble bar.
+     *
+     * <p>When the bubble bar becomes visible, if needed, this method animates the hotseat icons
+     * to reduce the spacing between them and make room for the bubble bar. The QSB width is
+     * animated as well to align with the hotseat icons.
+     *
+     * <p>When the bubble bar goes away, any adjustments that were previously made are reversed.
+     */
+    public void adjustForBubbleBar(boolean isBubbleBarVisible) {
+        DeviceProfile dp = mActivity.getDeviceProfile();
+        float adjustedBorderSpace = dp.getHotseatAdjustedBorderSpaceForBubbleBar(getContext());
+        if (Float.compare(adjustedBorderSpace, 0f) == 0) {
+            return;
+        }
+
+        ShortcutAndWidgetContainer icons = getShortcutsAndWidgets();
+        AnimatorSet animatorSet = new AnimatorSet();
+        float borderSpaceDelta = adjustedBorderSpace - dp.hotseatBorderSpace;
+
+        // update the translation provider for future layout passes of hotseat icons.
+        if (isBubbleBarVisible) {
+            icons.setTranslationProvider(child -> {
+                int index = icons.indexOfChild(child);
+                return dp.iconSizePx + index * borderSpaceDelta;
+            });
+        } else {
+            icons.setTranslationProvider(null);
+        }
+
+        for (int i = 0; i < icons.getChildCount(); i++) {
+            View child = icons.getChildAt(i);
+            float tx = isBubbleBarVisible ? dp.iconSizePx + i * borderSpaceDelta : 0;
+            if (child instanceof Reorderable) {
+                MultiTranslateDelegate mtd = ((Reorderable) child).getTranslateDelegate();
+                animatorSet.play(
+                        mtd.getTranslationX(INDEX_BUBBLE_ADJUSTMENT_ANIM).animateToValue(tx));
+            } else {
+                animatorSet.play(ObjectAnimator.ofFloat(child, VIEW_TRANSLATE_X, tx));
+            }
+        }
+        if (mQsb instanceof HorizontalInsettableView) {
+            HorizontalInsettableView horizontalInsettableQsb = (HorizontalInsettableView) mQsb;
+            ValueAnimator qsbAnimator = ValueAnimator.ofFloat(0f, 1f);
+            qsbAnimator.addUpdateListener(animation -> {
+                float fraction = qsbAnimator.getAnimatedFraction();
+                float insetFraction = isBubbleBarVisible
+                        ? (float) dp.iconSizePx * fraction / dp.hotseatQsbWidth
+                        : (float) dp.iconSizePx * (1 - fraction) / dp.hotseatQsbWidth;
+                horizontalInsettableQsb.setHorizontalInsets(insetFraction);
+            });
+            animatorSet.play(qsbAnimator);
+        }
+        animatorSet.setDuration(BUBBLE_BAR_ADJUSTMENT_ANIMATION_DURATION_MS).start();
+    }
+
     @Override
     public void setInsets(Rect insets) {
         FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) getLayoutParams();
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 1fef2f8..b8e7737 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -2325,6 +2325,7 @@
      * <p>
      * Implementation of the method from LauncherModel.Callbacks.
      */
+    @Override
     public void startBinding() {
         TraceHelper.INSTANCE.beginSection("startBinding");
         // Floating panels (except the full widget sheet) are associated with individual icons. If
diff --git a/src/com/android/launcher3/ShortcutAndWidgetContainer.java b/src/com/android/launcher3/ShortcutAndWidgetContainer.java
index 5e7f21b..b22b690 100644
--- a/src/com/android/launcher3/ShortcutAndWidgetContainer.java
+++ b/src/com/android/launcher3/ShortcutAndWidgetContainer.java
@@ -21,6 +21,7 @@
 import static com.android.launcher3.CellLayout.FOLDER;
 import static com.android.launcher3.CellLayout.HOTSEAT;
 import static com.android.launcher3.CellLayout.WORKSPACE;
+import static com.android.launcher3.util.MultiTranslateDelegate.INDEX_BUBBLE_ADJUSTMENT_ANIM;
 import static com.android.launcher3.util.MultiTranslateDelegate.INDEX_WIDGET_CENTERING;
 
 import android.app.WallpaperManager;
@@ -33,6 +34,8 @@
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.CellLayout.ContainerType;
 import com.android.launcher3.celllayout.CellLayoutLayoutParams;
 import com.android.launcher3.folder.FolderIcon;
@@ -62,6 +65,9 @@
     private final ActivityContext mActivity;
     private boolean mInvertIfRtl = false;
 
+    @Nullable
+    private TranslationProvider mTranslationProvider = null;
+
     public ShortcutAndWidgetContainer(Context context, @ContainerType int containerType) {
         super(context);
         mActivity = ActivityContext.lookupContext(context);
@@ -229,6 +235,16 @@
                     childLeft, childTop, childLeft + lp.width, childTop + lp.height);
         }
         child.layout(childLeft, childTop, childLeft + lp.width, childTop + lp.height);
+        if (mTranslationProvider != null) {
+            final float tx = mTranslationProvider.getTranslationX(child);
+            if (child instanceof Reorderable) {
+                ((Reorderable) child).getTranslateDelegate()
+                        .getTranslationX(INDEX_BUBBLE_ADJUSTMENT_ANIM)
+                        .setValue(tx);
+            } else {
+                child.setTranslationX(tx);
+            }
+        }
 
         if (lp.dropped) {
             lp.dropped = false;
@@ -298,4 +314,13 @@
             cl.clearFolderLeaveBehind();
         }
     }
+
+    void setTranslationProvider(@Nullable TranslationProvider provider) {
+        mTranslationProvider = provider;
+    }
+
+    /** Provides translation values to apply when laying out child views. */
+    interface TranslationProvider {
+        float getTranslationX(View child);
+    }
 }
diff --git a/src/com/android/launcher3/util/MultiTranslateDelegate.java b/src/com/android/launcher3/util/MultiTranslateDelegate.java
index 1cb7a45..0e32ba7 100644
--- a/src/com/android/launcher3/util/MultiTranslateDelegate.java
+++ b/src/com/android/launcher3/util/MultiTranslateDelegate.java
@@ -40,6 +40,9 @@
     // Specific for widgets
     public static final int INDEX_WIDGET_CENTERING = 3;
 
+    // Specific for hotseat items when adjusting for bubbles
+    public static final int INDEX_BUBBLE_ADJUSTMENT_ANIM = 3;
+
     public static final int COUNT = 5;
 
     private final MultiPropertyFactory<View> mTranslationX;
diff --git a/src/com/android/launcher3/views/ActivityContext.java b/src/com/android/launcher3/views/ActivityContext.java
index 84ea871..7b82195 100644
--- a/src/com/android/launcher3/views/ActivityContext.java
+++ b/src/com/android/launcher3/views/ActivityContext.java
@@ -442,6 +442,16 @@
         return CellPosMapper.DEFAULT;
     }
 
+    /** Whether bubbles are enabled. */
+    default boolean isBubbleBarEnabled() {
+        return false;
+    }
+
+    /** Whether the bubble bar has bubbles. */
+    default boolean hasBubbles() {
+        return false;
+    }
+
     /**
      * Returns the ActivityContext associated with the given Context, or throws an exception if
      * the Context is not associated with any ActivityContext.