Creates BubbleBarView & BubbleBarViewController & friends
BubbleBarView shows BubbleViews in a bar similar to transient
taskbar. BubbleBarView can be collapsed (bubbles in a stack) or
expanded (bubbles all visible). When expanded, WMShell will be
notified to show the appropriate expanded bubble view (not part of
this CL).
Also creates BubbleControllers which contains BubbleBarViewController
and will eventually contain other controllers related to stashing
for the bubble bar.
Bug: 253318833
Test: manual, with other CLs, see go/bubble-bar-tests
Flag: WM_BUBBLE_BAR
Change-Id: I990ab3da6614db90ffff8c40281dc7f16b3957f6
diff --git a/quickstep/res/layout/bubble_view.xml b/quickstep/res/layout/bubble_view.xml
new file mode 100644
index 0000000..0b1ed9f
--- /dev/null
+++ b/quickstep/res/layout/bubble_view.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ Copyright (C) 2023 The Android Open Source Project
+ ~
+ ~ Licensed under the Apache License, Version 2.0 (the "License");
+ ~ you may not use this file except in compliance with the License.
+ ~ You may obtain a copy of the License at
+ ~
+ ~ http://www.apache.org/licenses/LICENSE-2.0
+ ~
+ ~ Unless required by applicable law or agreed to in writing, software
+ ~ distributed under the License is distributed on an "AS IS" BASIS,
+ ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ~ See the License for the specific language governing permissions and
+ ~ limitations under the License.
+ -->
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:app="http://schemas.android.com/apk/res-auto">
+
+ <ImageView
+ android:id="@+id/icon_view"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ android:contentDescription="@null" />
+
+ <!--
+ Icon badge size is defined in Launcher3 BaseIconFactory as 0.444 of icon size.
+ Constraint guide starts from left, which means for a badge positioned on the right,
+ percent has to be 1 - 0.444 to have the same effect.
+ -->
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/app_icon_constraint_horizontal"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="horizontal"
+ app:layout_constraintGuide_percent="0.556" />
+
+ <androidx.constraintlayout.widget.Guideline
+ android:id="@+id/app_icon_constraint_vertical"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:orientation="vertical"
+ app:layout_constraintGuide_percent="0.556" />
+
+ <ImageView
+ android:id="@+id/app_icon_view"
+ android:layout_width="0dp"
+ android:layout_height="0dp"
+ android:contentDescription="@null"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintLeft_toLeftOf="@id/app_icon_constraint_vertical"
+ app:layout_constraintRight_toRightOf="parent"
+ app:layout_constraintTop_toTopOf="@id/app_icon_constraint_horizontal" />
+
+</merge>
\ No newline at end of file
diff --git a/quickstep/res/layout/bubblebar_item_view.xml b/quickstep/res/layout/bubblebar_item_view.xml
new file mode 100644
index 0000000..64fc4df
--- /dev/null
+++ b/quickstep/res/layout/bubblebar_item_view.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ ~ Copyright (C) 2023 The Android Open Source Project
+ ~
+ ~ Licensed under the Apache License, Version 2.0 (the "License");
+ ~ you may not use this file except in compliance with the License.
+ ~ You may obtain a copy of the License at
+ ~
+ ~ http://www.apache.org/licenses/LICENSE-2.0
+ ~
+ ~ Unless required by applicable law or agreed to in writing, software
+ ~ distributed under the License is distributed on an "AS IS" BASIS,
+ ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ~ See the License for the specific language governing permissions and
+ ~ limitations under the License
+ -->
+<com.android.launcher3.taskbar.bubbles.BubbleView
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ android:id="@+id/bubble_view"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"/>
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index 3df5d57..cdb3b1c 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -344,6 +344,19 @@
<!-- Recents overview -->
<dimen name="recents_filter_icon_size">30dp</dimen>
+ <!-- Bubble bar -->
+ <dimen name="bubblebar_size">72dp</dimen>
+ <dimen name="bubblebar_stashed_handle_width">55dp</dimen>
+ <dimen name="bubblebar_stashed_size">@dimen/transient_taskbar_stashed_height</dimen>
+ <dimen name="bubblebar_stashed_handle_height">@dimen/taskbar_stashed_handle_height</dimen>
+ <dimen name="bubblebar_pointer_size">8dp</dimen>
+
+ <dimen name="bubblebar_icon_size">50dp</dimen>
+ <dimen name="bubblebar_badge_size">24dp</dimen>
+ <dimen name="bubblebar_icon_overlap">12dp</dimen>
+ <dimen name="bubblebar_icon_spacing">3dp</dimen>
+ <dimen name="bubblebar_icon_elevation">1dp</dimen>
+
<!-- Launcher splash screen -->
<!-- Note: keep this value in sync with the WindowManager/Shell dimens.xml -->
<!-- starting_surface_exit_animation_window_shift_length -->
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBackground.kt b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBackground.kt
new file mode 100644
index 0000000..667c6f5
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBackground.kt
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.taskbar.bubbles
+
+import android.graphics.Canvas
+import android.graphics.Color
+import android.graphics.ColorFilter
+import android.graphics.Paint
+import android.graphics.drawable.Drawable
+import android.graphics.drawable.ShapeDrawable
+import com.android.launcher3.R
+import com.android.launcher3.Utilities
+import com.android.launcher3.Utilities.mapToRange
+import com.android.launcher3.anim.Interpolators
+import com.android.launcher3.icons.GraphicsUtils.setColorAlphaBound
+import com.android.launcher3.taskbar.TaskbarActivityContext
+import com.android.wm.shell.common.TriangleShape
+
+/** Drawable for the background of the bubble bar. */
+class BubbleBarBackground(context: TaskbarActivityContext, private val backgroundHeight: Float) :
+ Drawable() {
+
+ private val DARK_THEME_SHADOW_ALPHA = 51f
+ private val LIGHT_THEME_SHADOW_ALPHA = 25f
+
+ private val paint: Paint = Paint()
+ private val pointerSize: Float
+
+ private val shadowAlpha: Float
+ private var shadowBlur = 0f
+ private var keyShadowDistance = 0f
+
+ private var arrowPositionX: Float = 0f
+ private var showingArrow: Boolean = false
+ private var arrowDrawable: ShapeDrawable
+
+ init {
+ paint.color = context.getColor(R.color.taskbar_background)
+ paint.flags = Paint.ANTI_ALIAS_FLAG
+ paint.style = Paint.Style.FILL
+
+ val res = context.resources
+ shadowBlur = res.getDimension(R.dimen.transient_taskbar_shadow_blur)
+ keyShadowDistance = res.getDimension(R.dimen.transient_taskbar_key_shadow_distance)
+ pointerSize = res.getDimension(R.dimen.bubblebar_pointer_size)
+
+ shadowAlpha =
+ if (Utilities.isDarkTheme(context)) DARK_THEME_SHADOW_ALPHA
+ else LIGHT_THEME_SHADOW_ALPHA
+
+ arrowDrawable =
+ ShapeDrawable(TriangleShape.create(pointerSize, pointerSize, /* pointUp= */ true))
+ arrowDrawable.setBounds(0, 0, pointerSize.toInt(), pointerSize.toInt())
+ arrowDrawable.paint.flags = Paint.ANTI_ALIAS_FLAG
+ arrowDrawable.paint.style = Paint.Style.FILL
+ arrowDrawable.paint.color = context.getColor(R.color.taskbar_background)
+ }
+
+ fun showArrow(show: Boolean) {
+ showingArrow = show
+ }
+
+ fun setArrowPosition(x: Float) {
+ arrowPositionX = x
+ }
+
+ /** Draws the background with the given paint and height, on the provided canvas. */
+ override fun draw(canvas: Canvas) {
+ canvas.save()
+
+ // TODO (b/277359345): Should animate the alpha similar to taskbar (see TaskbarDragLayer)
+ // Draw shadows.
+ val newShadowAlpha =
+ mapToRange(paint.alpha.toFloat(), 0f, 255f, 0f, shadowAlpha, Interpolators.LINEAR)
+ paint.setShadowLayer(
+ shadowBlur,
+ 0f,
+ keyShadowDistance,
+ setColorAlphaBound(Color.BLACK, Math.round(newShadowAlpha))
+ )
+ arrowDrawable.paint.setShadowLayer(
+ shadowBlur,
+ 0f,
+ keyShadowDistance,
+ setColorAlphaBound(Color.BLACK, Math.round(newShadowAlpha))
+ )
+
+ // Draw background.
+ val radius = backgroundHeight / 2f
+ canvas.drawRoundRect(
+ 0f,
+ 0f,
+ canvas.width.toFloat(),
+ canvas.height.toFloat(),
+ radius,
+ radius,
+ paint
+ )
+
+ if (showingArrow) {
+ // Draw arrow.
+ val transX = arrowPositionX - pointerSize / 2f
+ canvas.translate(transX, -pointerSize)
+ arrowDrawable.draw(canvas)
+ }
+
+ canvas.restore()
+ }
+
+ override fun getOpacity(): Int {
+ return paint.alpha
+ }
+
+ override fun setAlpha(alpha: Int) {
+ paint.alpha = alpha
+ }
+
+ override fun setColorFilter(colorFilter: ColorFilter?) {
+ paint.colorFilter = colorFilter
+ }
+}
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBubble.kt b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBubble.kt
new file mode 100644
index 0000000..b1633e7
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBubble.kt
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.taskbar.bubbles
+
+import android.graphics.Bitmap
+import android.graphics.Path
+import com.android.wm.shell.common.bubbles.BubbleInfo
+
+/** Contains state info about a bubble in the bubble bar as well as presentation information. */
+data class BubbleBarBubble(
+ val info: BubbleInfo,
+ val view: BubbleView,
+ val badge: Bitmap,
+ val icon: Bitmap,
+ val dotColor: Int,
+ val dotPath: Path,
+ val appName: String
+) {
+
+ fun getKey(): String {
+ return info.key
+ }
+}
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
new file mode 100644
index 0000000..07daf06
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
@@ -0,0 +1,304 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.taskbar.bubbles;
+
+import android.annotation.Nullable;
+import android.content.Context;
+import android.graphics.Rect;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+
+import com.android.launcher3.R;
+import com.android.launcher3.taskbar.TaskbarActivityContext;
+import com.android.launcher3.views.ActivityContext;
+
+import java.util.List;
+
+/**
+ * The view that holds all the bubble views. Modifying this view should happen through
+ * {@link BubbleBarViewController}. Updates to the bubbles themselves (adds, removes, updates,
+ * selection) should happen through BubbleBarController which is the source of truth
+ * for state information about the bubbles.
+ * <p>
+ * The bubble bar has a couple of visual states:
+ * - stashed as a handle
+ * - unstashed but collapsed, in this state the bar is showing but the bubbles are stacked within it
+ * - unstashed and expanded, in this state the bar is showing and the bubbles are shown in a row
+ * with one of the bubbles being selected. Additionally, WMShell will display the expanded bubble
+ * view above the bar.
+ * <p>
+ * The bubble bar has some behavior related to taskbar:
+ * - When taskbar is unstashed, bubble bar will also become unstashed (but in its "collapsed"
+ * state)
+ * - When taskbar is stashed, bubble bar will also become stashed (unless bubble bar is in its
+ * "expanded" state)
+ * - When bubble bar is in its "expanded" state, taskbar becomes stashed
+ * <p>
+ * If there are no bubbles, the bubble bar and bubble stashed handle are not shown. Additionally
+ * the bubble bar and stashed handle are not shown on lockscreen.
+ * <p>
+ * When taskbar is in persistent or 3 button nav mode, the bubble bar is not available, and instead
+ * the bubbles are shown fully by WMShell in their floating mode.
+ */
+public class BubbleBarView extends FrameLayout {
+
+ private static final String TAG = BubbleBarView.class.getSimpleName();
+
+ // TODO: (b/273594744) calculate the amount of space we have and base the max on that
+ // if it's smaller than 5.
+ private static final int MAX_BUBBLES = 5;
+
+ private final TaskbarActivityContext mActivityContext;
+ private final BubbleBarBackground mBubbleBarBackground;
+
+ // The current bounds of all the bubble bar.
+ private final Rect mBubbleBarBounds = new Rect();
+ // The amount the bubbles overlap when they are stacked in the bubble bar
+ private final float mIconOverlapAmount;
+ // The spacing between the bubbles when they are expanded in the bubble bar
+ private final float mIconSpacing;
+ // The size of a bubble in the bar
+ private final float mIconSize;
+ // The elevation of the bubbles within the bar
+ private final float mBubbleElevation;
+
+ // Whether the bar is expanded (i.e. the bubble activity is being displayed).
+ private boolean mIsBarExpanded = false;
+ // The currently selected bubble view.
+ private BubbleView mSelectedBubbleView;
+ // The click listener when the bubble bar is collapsed.
+ private View.OnClickListener mOnClickListener;
+
+ private final Rect mTempRect = new Rect();
+
+ // We don't reorder the bubbles when they are expanded as it could be jarring for the user
+ // this runnable will be populated with any reordering of the bubbles that should be applied
+ // once they are collapsed.
+ @Nullable
+ private Runnable mReorderRunnable;
+
+ public BubbleBarView(Context context) {
+ this(context, null);
+ }
+
+ public BubbleBarView(Context context, AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public BubbleBarView(Context context, AttributeSet attrs, int defStyleAttr) {
+ this(context, attrs, defStyleAttr, 0);
+ }
+
+ public BubbleBarView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+ super(context, attrs, defStyleAttr, defStyleRes);
+ mActivityContext = ActivityContext.lookupContext(context);
+
+ mIconOverlapAmount = getResources().getDimensionPixelSize(R.dimen.bubblebar_icon_overlap);
+ mIconSpacing = getResources().getDimensionPixelSize(R.dimen.bubblebar_icon_spacing);
+ mIconSize = getResources().getDimensionPixelSize(R.dimen.bubblebar_icon_size);
+ mBubbleElevation = getResources().getDimensionPixelSize(R.dimen.bubblebar_icon_elevation);
+ setClipToPadding(false);
+
+ mBubbleBarBackground = new BubbleBarBackground(mActivityContext,
+ getResources().getDimensionPixelSize(R.dimen.bubblebar_size));
+ setBackgroundDrawable(mBubbleBarBackground);
+ }
+
+ @Override
+ protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+ super.onLayout(changed, left, top, right, bottom);
+ mBubbleBarBounds.left = left;
+ mBubbleBarBounds.top = top;
+ mBubbleBarBounds.right = right;
+ mBubbleBarBounds.bottom = bottom;
+
+ // The bubble bar handle is aligned to the bottom edge of the screen so scale towards that.
+ setPivotX(getWidth());
+ setPivotY(getHeight());
+
+ // Position the views
+ updateChildrenRenderNodeProperties();
+ }
+
+ /**
+ * Returns the bounds of the bubble bar.
+ */
+ public Rect getBubbleBarBounds() {
+ return mBubbleBarBounds;
+ }
+
+ // TODO: (b/273592694) animate it
+ @Override
+ public void addView(View child, int index, ViewGroup.LayoutParams params) {
+ if (getChildCount() + 1 > MAX_BUBBLES) {
+ removeViewInLayout(getChildAt(getChildCount() - 1));
+ }
+ super.addView(child, index, params);
+ }
+
+ /**
+ * Updates the z order, positions, and badge visibility of the bubble views in the bar based
+ * on the expanded state.
+ */
+ // TODO: (b/273592694) animate it
+ private void updateChildrenRenderNodeProperties() {
+ int bubbleCount = getChildCount();
+ final float ty = (mBubbleBarBounds.height() - mIconSize) / 2f;
+ for (int i = 0; i < bubbleCount; i++) {
+ BubbleView bv = (BubbleView) getChildAt(i);
+ bv.setTranslationY(ty);
+ if (mIsBarExpanded) {
+ final float tx = i * (mIconSize + mIconSpacing);
+ bv.setTranslationX(tx);
+ bv.setZ(0);
+ bv.showBadge();
+ } else {
+ bv.setZ((MAX_BUBBLES * mBubbleElevation) - i);
+ bv.setTranslationX(i * mIconOverlapAmount);
+ if (i > 0) {
+ bv.hideBadge();
+ } else {
+ bv.showBadge();
+ }
+ }
+ }
+ }
+
+ /**
+ * Reorders the views to match the provided list.
+ */
+ public void reorder(List<BubbleView> viewOrder) {
+ if (isExpanded()) {
+ mReorderRunnable = () -> doReorder(viewOrder);
+ } else {
+ doReorder(viewOrder);
+ }
+ }
+
+ // TODO: (b/273592694) animate it
+ private void doReorder(List<BubbleView> viewOrder) {
+ if (!isExpanded()) {
+ for (int i = 0; i < viewOrder.size(); i++) {
+ View child = viewOrder.get(i);
+ if (child != null) {
+ removeViewInLayout(child);
+ addViewInLayout(child, i, child.getLayoutParams());
+ }
+ }
+ updateChildrenRenderNodeProperties();
+ }
+ }
+
+ /**
+ * Sets which bubble view should be shown as selected.
+ */
+ // TODO: (b/273592694) animate it
+ public void setSelectedBubble(BubbleView view) {
+ mSelectedBubbleView = view;
+ updateArrowForSelected();
+ invalidate();
+ }
+
+ private void updateArrowForSelected() {
+ if (mSelectedBubbleView == null) {
+ Log.w(TAG, "trying to update selection arrow without a selected view!");
+ return;
+ }
+ final int index = indexOfChild(mSelectedBubbleView);
+ // Find the center of the bubble when it's expanded, set the arrow position to it.
+ final float tx = getPaddingStart() + index * (mIconSize + mIconSpacing) + mIconSize / 2f;
+ mBubbleBarBackground.setArrowPosition(tx);
+ }
+
+ @Override
+ public void setOnClickListener(View.OnClickListener listener) {
+ mOnClickListener = listener;
+ setOrUnsetClickListener();
+ }
+
+ /**
+ * The click listener used for the bubble view gets added / removed depending on whether
+ * the bar is expanded or collapsed, this updates whether the listener is set based on state.
+ */
+ private void setOrUnsetClickListener() {
+ super.setOnClickListener(mIsBarExpanded ? null : mOnClickListener);
+ }
+
+ /**
+ * Sets whether the bubble bar is expanded or collapsed.
+ */
+ // TODO: (b/273592694) animate it
+ public void setExpanded(boolean isBarExpanded) {
+ if (mIsBarExpanded != isBarExpanded) {
+ mIsBarExpanded = isBarExpanded;
+ updateArrowForSelected();
+ setOrUnsetClickListener();
+ if (!isBarExpanded && mReorderRunnable != null) {
+ mReorderRunnable.run();
+ mReorderRunnable = null;
+ }
+ mBubbleBarBackground.showArrow(mIsBarExpanded);
+ requestLayout(); // trigger layout to reposition views & update size for expansion
+ }
+ }
+
+ /**
+ * Returns whether the bubble bar is expanded.
+ */
+ public boolean isExpanded() {
+ return mIsBarExpanded;
+ }
+
+ @Override
+ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+ final int childCount = getChildCount();
+ final float iconWidth = mIsBarExpanded
+ ? (childCount * (mIconSize + mIconSpacing))
+ : mIconSize + ((childCount - 1) * mIconOverlapAmount);
+ final int totalWidth = (int) iconWidth + getPaddingStart() + getPaddingEnd();
+ setMeasuredDimension(totalWidth, MeasureSpec.getSize(heightMeasureSpec));
+
+ for (int i = 0; i < childCount; i++) {
+ View child = getChildAt(i);
+ measureChild(child, (int) mIconSize, (int) mIconSize);
+ }
+ }
+
+ /**
+ * Returns whether the given MotionEvent, *in screen coordinates*, is within bubble bar
+ * touch bounds.
+ */
+ public boolean isEventOverAnyItem(MotionEvent ev) {
+ if (getVisibility() == View.VISIBLE) {
+ getBoundsOnScreen(mTempRect);
+ return mTempRect.contains((int) ev.getX(), (int) ev.getY());
+ }
+ return false;
+ }
+
+ @Override
+ public boolean onInterceptTouchEvent(MotionEvent ev) {
+ if (!mIsBarExpanded) {
+ // When the bar is collapsed, all taps on it should expand it.
+ return true;
+ }
+ return super.onInterceptTouchEvent(ev);
+ }
+}
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
new file mode 100644
index 0000000..deac42f
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
@@ -0,0 +1,276 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.taskbar.bubbles;
+
+import static android.view.View.INVISIBLE;
+import static android.view.View.VISIBLE;
+
+import android.graphics.Rect;
+import android.util.Log;
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.FrameLayout;
+
+import com.android.launcher3.R;
+import com.android.launcher3.anim.AnimatedFloat;
+import com.android.launcher3.taskbar.TaskbarActivityContext;
+import com.android.launcher3.taskbar.TaskbarControllers;
+import com.android.launcher3.util.MultiPropertyFactory;
+import com.android.launcher3.util.MultiValueAlpha;
+
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * Controller for {@link BubbleBarView}. Manages the visibility of the bubble bar as well as
+ * responding to changes in bubble state provided by BubbleBarController.
+ */
+public class BubbleBarViewController {
+
+ private static final String TAG = BubbleBarViewController.class.getSimpleName();
+
+ private final TaskbarActivityContext mActivity;
+ private final BubbleBarView mBarView;
+ private final int mIconSize;
+
+ // Initialized in init.
+ private View.OnClickListener mBubbleClickListener;
+ private View.OnClickListener mBubbleBarClickListener;
+
+ // These are exposed to BubbleStashController to animate for stashing/un-stashing
+ private final MultiValueAlpha mBubbleBarAlpha;
+ private final AnimatedFloat mBubbleBarScale = new AnimatedFloat(this::updateScale);
+ private final AnimatedFloat mBubbleBarTranslationY = new AnimatedFloat(
+ this::updateTranslationY);
+
+ // Modified when swipe up is happening on the bubble bar or task bar.
+ private float mBubbleBarSwipeUpTranslationY;
+
+ // 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;
+
+ public BubbleBarViewController(TaskbarActivityContext activity, BubbleBarView barView) {
+ mActivity = activity;
+ mBarView = barView;
+ mBubbleBarAlpha = new MultiValueAlpha(mBarView, 1 /* num alpha channels */);
+ mBubbleBarAlpha.setUpdateVisibility(true);
+ mIconSize = activity.getResources().getDimensionPixelSize(R.dimen.bubblebar_icon_size);
+ }
+
+ public void init(TaskbarControllers controllers, BubbleControllers bubbleControllers) {
+ mActivity.addOnDeviceProfileChangeListener(dp ->
+ mBarView.getLayoutParams().height = mActivity.getDeviceProfile().taskbarHeight
+ );
+ mBarView.getLayoutParams().height = mActivity.getDeviceProfile().taskbarHeight;
+ mBubbleBarScale.updateValue(1f);
+ mBubbleClickListener = v -> onBubbleClicked(v);
+ mBubbleBarClickListener = v -> setExpanded(true);
+ mBarView.setOnClickListener(mBubbleBarClickListener);
+ // TODO: when barView layout changes tell taskbarInsetsController the insets have changed.
+ }
+
+ private void onBubbleClicked(View v) {
+ BubbleBarBubble bubble = ((BubbleView) v).getBubble();
+ if (bubble == null) {
+ Log.e(TAG, "bubble click listener, bubble was null");
+ }
+ // TODO: handle the click
+ }
+
+ //
+ // The below animators are exposed to BubbleStashController so it can manage the stashing
+ // animation.
+ //
+
+ public MultiPropertyFactory<View> getBubbleBarAlpha() {
+ return mBubbleBarAlpha;
+ }
+
+ public AnimatedFloat getBubbleBarScale() {
+ return mBubbleBarScale;
+ }
+
+ public AnimatedFloat getBubbleBarTranslationY() {
+ return mBubbleBarTranslationY;
+ }
+
+ /**
+ * Whether the bubble bar is visible or not.
+ */
+ public boolean isBubbleBarVisible() {
+ return mBarView.getVisibility() == VISIBLE;
+ }
+
+ /**
+ * The bounds of the bubble bar.
+ */
+ public Rect getBubbleBarBounds() {
+ return mBarView.getBubbleBarBounds();
+ }
+
+ /**
+ * When the bubble bar is not stashed, it can be collapsed (the icons are in a stack) or
+ * expanded (the icons are in a row). This indicates whether the bubble bar is expanded.
+ */
+ public boolean isExpanded() {
+ return mBarView.isExpanded();
+ }
+
+ /**
+ * Whether the motion event is within the bounds of the bubble bar.
+ */
+ public boolean isEventOverAnyItem(MotionEvent ev) {
+ return mBarView.isEventOverAnyItem(ev);
+ }
+
+ //
+ // Visibility of the bubble bar
+ //
+
+ /**
+ * Returns whether the bubble bar is hidden because there are no bubbles.
+ */
+ public boolean isHiddenForNoBubbles() {
+ return mHiddenForNoBubbles;
+ }
+
+ /**
+ * Sets whether the bubble bar should be hidden because there are no bubbles.
+ */
+ public void setHiddenForBubbles(boolean hidden) {
+ if (mHiddenForNoBubbles != hidden) {
+ mHiddenForNoBubbles = hidden;
+ updateVisibilityForStateChange();
+ }
+ }
+
+ /**
+ * Sets whether the bubble bar should be hidden due to SysUI state (e.g. on lockscreen).
+ */
+ public void setHiddenForSysui(boolean hidden) {
+ if (mHiddenForSysui != hidden) {
+ mHiddenForSysui = hidden;
+ updateVisibilityForStateChange();
+ }
+ }
+
+ // TODO: (b/273592694) animate it
+ private void updateVisibilityForStateChange() {
+ // TODO: check if it's stashed
+ if (!mHiddenForSysui && !mHiddenForNoBubbles) {
+ mBarView.setVisibility(VISIBLE);
+ } else {
+ mBarView.setVisibility(INVISIBLE);
+ }
+ }
+
+ //
+ // Modifying view related properties.
+ //
+
+ /**
+ * Sets the translation of the bubble bar during the swipe up gesture.
+ */
+ public void setTranslationYForSwipe(float transY) {
+ mBubbleBarSwipeUpTranslationY = transY;
+ updateTranslationY();
+ }
+
+ private void updateTranslationY() {
+ mBarView.setTranslationY(mBubbleBarTranslationY.value
+ + mBubbleBarSwipeUpTranslationY);
+ }
+
+ /**
+ * Applies scale properties for the entire bubble bar.
+ */
+ private void updateScale() {
+ float scale = mBubbleBarScale.value;
+ mBarView.setScaleX(scale);
+ mBarView.setScaleY(scale);
+ }
+
+ //
+ // Manipulating the specific bubble views in the bar
+ //
+
+ /**
+ * Removes the provided bubble from the bubble bar.
+ */
+ public void removeBubble(BubbleBarBubble b) {
+ if (b != null) {
+ mBarView.removeView(b.getView());
+ } else {
+ Log.w(TAG, "removeBubble, bubble was null!");
+ }
+ }
+
+ /**
+ * Adds the provided bubble to the bubble bar.
+ */
+ public void addBubble(BubbleBarBubble b) {
+ if (b != null) {
+ mBarView.addView(b.getView(), 0, new FrameLayout.LayoutParams(mIconSize, mIconSize));
+ b.getView().setOnClickListener(mBubbleClickListener);
+ } else {
+ Log.w(TAG, "addBubble, bubble was null!");
+ }
+ }
+
+ /**
+ * Reorders the bubbles based on the provided list.
+ */
+ public void reorderBubbles(List<BubbleBarBubble> newOrder) {
+ List<BubbleView> viewList = newOrder.stream().filter(Objects::nonNull)
+ .map(BubbleBarBubble::getView).toList();
+ mBarView.reorder(viewList);
+ }
+
+ /**
+ * Updates the selected bubble.
+ */
+ public void updateSelectedBubble(BubbleBarBubble newlySelected) {
+ mBarView.setSelectedBubble(newlySelected.getView());
+ }
+
+ /**
+ * Sets whether the bubble bar should be expanded (not unstashed, but have the contents
+ * within it expanded). This method notifies SystemUI that the bubble bar is expanded and
+ * showing a selected bubble. This method should ONLY be called from UI events originating
+ * from Launcher.
+ */
+ public void setExpanded(boolean isExpanded) {
+ if (isExpanded != mBarView.isExpanded()) {
+ mBarView.setExpanded(isExpanded);
+ if (!isExpanded) {
+ // TODO: Tell SysUi to collapse the bubble
+ } else {
+ // TODO: Tell SysUi to show the bubble
+ // TODO: Tell taskbar stash controller to stash without bubbles following
+ }
+ }
+ }
+
+ /**
+ * Sets whether the bubble bar should be expanded. This method is used in response to UI events
+ * from SystemUI.
+ */
+ public void setExpandedFromSysui(boolean isExpanded) {
+ // TODO: Tell bubble bar stash controller to stash or unstash the bubble bar
+ }
+}
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleControllers.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleControllers.java
new file mode 100644
index 0000000..e92d4fb
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleControllers.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.taskbar.bubbles;
+
+import com.android.launcher3.taskbar.TaskbarControllers;
+import com.android.launcher3.util.RunnableList;
+
+/**
+ * Hosts various bubble controllers to facilitate passing between one another.
+ */
+public class BubbleControllers {
+
+ public final BubbleBarViewController bubbleBarViewController;
+
+ private final RunnableList mPostInitRunnables = new RunnableList();
+
+ /**
+ * Want to add a new controller? Don't forget to:
+ * * Call init
+ * * Call onDestroy
+ */
+ public BubbleControllers(BubbleBarViewController bubbleBarViewController) {
+ this.bubbleBarViewController = bubbleBarViewController;
+ }
+
+ /**
+ * Initializes all controllers. Note that controllers can now reference each other through this
+ * BubbleControllers instance, but should be careful to only access things that were created
+ * in constructors for now, as some controllers may still be waiting for init().
+ */
+ public void init(TaskbarControllers taskbarControllers) {
+ bubbleBarViewController.init(taskbarControllers, this);
+
+ mPostInitRunnables.executeAllAndDestroy();
+ }
+
+ /**
+ * If all controllers are already initialized, runs the given callback immediately. Otherwise,
+ * queues it to run after calling init() on all controllers. This should likely be used in any
+ * case where one controller is telling another controller to do something inside init().
+ */
+ public void runAfterInit(Runnable runnable) {
+ // If this has been executed in init, it automatically runs adds to it.
+ mPostInitRunnables.add(runnable);
+ }
+
+ /**
+ * Cleans up all controllers.
+ */
+ public void onDestroy() {
+ // TODO
+ }
+}
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleView.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleView.java
new file mode 100644
index 0000000..e22e63a
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleView.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.taskbar.bubbles;
+
+import android.annotation.Nullable;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Outline;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewOutlineProvider;
+import android.widget.ImageView;
+
+import androidx.constraintlayout.widget.ConstraintLayout;
+
+import com.android.launcher3.R;
+import com.android.launcher3.icons.IconNormalizer;
+
+// TODO: (b/276978250) This is will be similar to WMShell's BadgedImageView, it'd be nice to share.
+// TODO: (b/269670235) currently this doesn't show the 'update dot'
+/**
+ * View that displays a bubble icon, along with an app badge on either the left or
+ * right side of the view.
+ */
+public class BubbleView extends ConstraintLayout {
+
+ // TODO: (b/269670235) currently we don't render the 'update dot', this will be used for that.
+ public static final int DEFAULT_PATH_SIZE = 100;
+
+ private final ImageView mBubbleIcon;
+ private final ImageView mAppIcon;
+ private final int mBubbleSize;
+
+ // TODO: (b/273310265) handle RTL
+ private boolean mOnLeft = false;
+
+ private BubbleBarBubble mBubble;
+
+ public BubbleView(Context context) {
+ this(context, null);
+ }
+
+ public BubbleView(Context context, AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public BubbleView(Context context, AttributeSet attrs, int defStyleAttr) {
+ this(context, attrs, defStyleAttr, 0);
+ }
+
+ public BubbleView(Context context, AttributeSet attrs, int defStyleAttr,
+ int defStyleRes) {
+ super(context, attrs, defStyleAttr, defStyleRes);
+ // We manage positioning the badge ourselves
+ setLayoutDirection(LAYOUT_DIRECTION_LTR);
+
+ LayoutInflater.from(context).inflate(R.layout.bubble_view, this);
+
+ mBubbleSize = getResources().getDimensionPixelSize(R.dimen.bubblebar_icon_size);
+ mBubbleIcon = findViewById(R.id.icon_view);
+ mAppIcon = findViewById(R.id.app_icon_view);
+
+ setFocusable(true);
+ setClickable(true);
+ setOutlineProvider(new ViewOutlineProvider() {
+ @Override
+ public void getOutline(View view, Outline outline) {
+ BubbleView.this.getOutline(outline);
+ }
+ });
+ }
+
+ private void getOutline(Outline outline) {
+ final int normalizedSize = IconNormalizer.getNormalizedCircleSize(mBubbleSize);
+ final int inset = (mBubbleSize - normalizedSize) / 2;
+ outline.setOval(inset, inset, inset + normalizedSize, inset + normalizedSize);
+ }
+
+ /** Sets the bubble being rendered in this view. */
+ void setBubble(BubbleBarBubble bubble) {
+ mBubble = bubble;
+ mBubbleIcon.setImageBitmap(bubble.getIcon());
+ mAppIcon.setImageBitmap(bubble.getBadge());
+ }
+
+ /** Returns the bubble being rendered in this view. */
+ @Nullable
+ BubbleBarBubble getBubble() {
+ return mBubble;
+ }
+
+ /** Shows the app badge on this bubble. */
+ void showBadge() {
+ Bitmap appBadgeBitmap = mBubble.getBadge();
+ if (appBadgeBitmap == null) {
+ mAppIcon.setVisibility(GONE);
+ return;
+ }
+
+ int translationX;
+ if (mOnLeft) {
+ translationX = -(mBubble.getIcon().getWidth() - appBadgeBitmap.getWidth());
+ } else {
+ translationX = 0;
+ }
+
+ mAppIcon.setTranslationX(translationX);
+ mAppIcon.setVisibility(VISIBLE);
+ }
+
+ /** Hides the app badge on this bubble. */
+ void hideBadge() {
+ mAppIcon.setVisibility(GONE);
+ }
+
+ @Override
+ public String toString() {
+ return "BubbleView{" + mBubble + "}";
+ }
+}