Moving taskbar lifecycle to TouchInteractionService

> Inflating taskbar views with a non-launcher window context
> Removing separate taskbar view in Launcher
> Handling taskbar icon clicks directly instead of going via launcher
> Fixing some relayouts during show/hide animation

Bug: 187353581
Test: Manual
Change-Id: Ia7d44acbb770bf0345922234b3daa5cc040a5843

quickstep/src/com/android/launcher3/taskbar/TaskbarController.java

@@ -15,105 +15,83 @@
  */
 package com.android.launcher3.taskbar;
 
-import static android.view.View.GONE;
-import static android.view.View.INVISIBLE;
-import static android.view.View.VISIBLE;
-import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
-import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
-import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
-
-import static com.android.systemui.shared.system.WindowManagerWrapper.ITYPE_BOTTOM_TAPPABLE_ELEMENT;
-import static com.android.systemui.shared.system.WindowManagerWrapper.ITYPE_EXTRA_NAVIGATION_BAR;
-
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
-import android.app.ActivityOptions;
-import android.graphics.PixelFormat;
-import android.graphics.Point;
 import android.graphics.Rect;
-import android.inputmethodservice.InputMethodService;
-import android.view.Gravity;
+import android.graphics.RectF;
 import android.view.MotionEvent;
-import android.view.View;
-import android.view.WindowManager;
 
 import androidx.annotation.Nullable;
 
-import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseQuickstepLauncher;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.QuickstepTransitionManager;
 import com.android.launcher3.R;
-import com.android.launcher3.anim.AlphaUpdateListener;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.PendingAnimation;
-import com.android.launcher3.folder.Folder;
-import com.android.launcher3.folder.FolderIcon;
-import com.android.launcher3.model.data.FolderInfo;
-import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.states.StateAnimationConfig;
-import com.android.launcher3.taskbar.TaskbarNavButtonController.TaskbarButton;
-import com.android.launcher3.touch.ItemClickHandler;
-import com.android.launcher3.views.ActivityContext;
-import com.android.quickstep.AnimatedFloat;
-import com.android.quickstep.SysUINavigationMode;
-import com.android.quickstep.TouchInteractionService.TaskbarOverviewProxyDelegate;
-import com.android.systemui.shared.recents.model.Task;
-import com.android.systemui.shared.system.ActivityManagerWrapper;
-import com.android.systemui.shared.system.WindowManagerWrapper;
+
 
 /**
- * Interfaces with Launcher/WindowManager/SystemUI to determine what to show in TaskbarView.
+ * A data source which integrates with a Launcher instance
+ * TODO: Rename to have Launcher prefix
  */
-public class TaskbarController implements TaskbarOverviewProxyDelegate {
 
-    private static final String WINDOW_TITLE = "Taskbar";
-
-    private final TaskbarContainerView mTaskbarContainerView;
-    private final TaskbarView mTaskbarViewInApp;
-    private final TaskbarView mTaskbarViewOnHome;
-    private final ImeBarView mImeBarView;
+public class TaskbarController extends TaskbarUIController {
 
     private final BaseQuickstepLauncher mLauncher;
-    private final WindowManager mWindowManager;
-    // Layout width and height of the Taskbar in the default state.
-    private final Point mTaskbarSize;
     private final TaskbarStateHandler mTaskbarStateHandler;
     private final TaskbarAnimationController mTaskbarAnimationController;
     private final TaskbarHotseatController mHotseatController;
-    private final TaskbarDragController mDragController;
-    private final TaskbarNavButtonController mNavButtonController;
 
-    // Initialized in init().
-    private WindowManager.LayoutParams mWindowLayoutParams;
-    private SysUINavigationMode.Mode mNavMode = SysUINavigationMode.Mode.NO_BUTTON;
-    private final SysUINavigationMode.NavigationModeChangeListener mNavigationModeChangeListener =
-            this::onNavModeChanged;
+    private final TaskbarActivityContext mContext;
+    final TaskbarContainerView mTaskbarContainerView;
+    final TaskbarView mTaskbarView;
 
     private @Nullable Animator mAnimator;
     private boolean mIsAnimatingToLauncher;
 
-    public TaskbarController(BaseQuickstepLauncher launcher,
-            TaskbarContainerView taskbarContainerView, TaskbarView taskbarViewOnHome) {
+    public TaskbarController(BaseQuickstepLauncher launcher, TaskbarActivityContext context) {
+        mContext = context;
+        mTaskbarContainerView = context.getDragLayer();
+        mTaskbarView = mTaskbarContainerView.findViewById(R.id.taskbar_view);
+
         mLauncher = launcher;
-        mTaskbarContainerView = taskbarContainerView;
-        mTaskbarContainerView.construct(createTaskbarContainerViewCallbacks());
-        ButtonProvider buttonProvider = new ButtonProvider(launcher);
-        mTaskbarViewInApp = mTaskbarContainerView.findViewById(R.id.taskbar_view);
-        mTaskbarViewInApp.construct(createTaskbarViewCallbacks(), buttonProvider);
-        mTaskbarViewOnHome = taskbarViewOnHome;
-        mTaskbarViewOnHome.construct(createTaskbarViewCallbacks(), buttonProvider);
-        mImeBarView = mTaskbarContainerView.findViewById(R.id.ime_bar_view);
-        mImeBarView.construct(buttonProvider);
-        mNavButtonController = new TaskbarNavButtonController(launcher);
-        mWindowManager = mLauncher.getWindowManager();
-        mTaskbarSize = new Point(MATCH_PARENT, mLauncher.getDeviceProfile().taskbarSize);
         mTaskbarStateHandler = mLauncher.getTaskbarStateHandler();
         mTaskbarAnimationController = new TaskbarAnimationController(mLauncher,
                 createTaskbarAnimationControllerCallbacks());
-        mHotseatController = new TaskbarHotseatController(mLauncher,
-                createTaskbarHotseatControllerCallbacks());
-        mDragController = new TaskbarDragController(mLauncher);
+        mHotseatController = new TaskbarHotseatController(
+                mLauncher, mTaskbarView::updateHotseatItems);
+    }
+
+    @Override
+    protected void onCreate() {
+        mTaskbarStateHandler.setAnimationController(mTaskbarAnimationController);
+        mTaskbarAnimationController.init();
+        mHotseatController.init();
+        setTaskbarViewVisible(!mLauncher.hasBeenResumed());
+        alignRealHotseatWithTaskbar();
+        mLauncher.setTaskbarController(this);
+    }
+
+    @Override
+    protected void onDestroy() {
+        if (mAnimator != null) {
+            // End this first, in case it relies on properties that are about to be cleaned up.
+            mAnimator.end();
+        }
+        mTaskbarStateHandler.setAnimationController(null);
+        mTaskbarAnimationController.cleanup();
+        mHotseatController.cleanup();
+        setTaskbarViewVisible(true);
+        mLauncher.getHotseat().setIconsAlpha(1f);
+        mLauncher.setTaskbarController(null);
+    }
+
+    @Override
+    protected boolean isTaskbarTouchable() {
+        return !mIsAnimatingToLauncher;
     }
 
     private TaskbarAnimationControllerCallbacks createTaskbarAnimationControllerCallbacks() {
@@ -125,245 +103,34 @@ public class TaskbarController implements TaskbarOverviewProxyDelegate {
 
             @Override
             public void updateTaskbarVisibilityAlpha(float alpha) {
-                mTaskbarViewInApp.setAlpha(alpha);
-                mTaskbarViewOnHome.setAlpha(alpha);
+                mTaskbarView.setAlpha(alpha);
             }
 
             @Override
             public void updateImeBarVisibilityAlpha(float alpha) {
-                if (mNavMode != SysUINavigationMode.Mode.THREE_BUTTONS) {
-                    // TODO Remove sysui IME bar for gesture nav as well
-                    return;
-                }
-                mImeBarView.setAlpha(alpha);
-                mImeBarView.setVisibility(alpha == 0 ? GONE : VISIBLE);
+                mTaskbarContainerView.updateImeBarVisibilityAlpha(alpha);
             }
 
             @Override
             public void updateTaskbarScale(float scale) {
-                mTaskbarViewInApp.setScaleX(scale);
-                mTaskbarViewInApp.setScaleY(scale);
+                mTaskbarView.setScaleX(scale);
+                mTaskbarView.setScaleY(scale);
             }
 
             @Override
             public void updateTaskbarTranslationY(float translationY) {
                 if (translationY < 0) {
                     // Resize to accommodate the max translation we'll reach.
-                    setTaskbarWindowHeight(mTaskbarSize.y
+                    mContext.setTaskbarWindowHeight(mContext.getDeviceProfile().taskbarSize
                             + mLauncher.getHotseat().getTaskbarOffsetY());
                 } else {
-                    setTaskbarWindowHeight(mTaskbarSize.y);
+                    mContext.setTaskbarWindowHeight(mContext.getDeviceProfile().taskbarSize);
                 }
-                mTaskbarViewInApp.setTranslationY(translationY);
+                mTaskbarView.setTranslationY(translationY);
             }
         };
     }
 
-    private TaskbarContainerViewCallbacks createTaskbarContainerViewCallbacks() {
-        return new TaskbarContainerViewCallbacks() {
-            @Override
-            public void onViewRemoved() {
-                // Ensure no other children present (like Folders, etc)
-                for (int i = 0; i < mTaskbarContainerView.getChildCount(); i++) {
-                    View v = mTaskbarContainerView.getChildAt(i);
-                    if (!((v instanceof TaskbarView) || (v instanceof ImeBarView))){
-                        return;
-                    }
-                }
-                setTaskbarWindowFullscreen(false);
-            }
-
-            @Override
-            public boolean isTaskbarTouchable() {
-                return mTaskbarContainerView.getAlpha() > AlphaUpdateListener.ALPHA_CUTOFF_THRESHOLD
-                        && (mTaskbarViewInApp.getVisibility() == VISIBLE
-                            || mImeBarView.getVisibility() == VISIBLE)
-                        && !mIsAnimatingToLauncher;
-            }
-        };
-    }
-
-    private TaskbarViewCallbacks createTaskbarViewCallbacks() {
-        return new TaskbarViewCallbacks() {
-            @Override
-            public View.OnClickListener getItemOnClickListener() {
-                return view -> {
-                    Object tag = view.getTag();
-                    if (tag instanceof Task) {
-                        Task task = (Task) tag;
-                        ActivityManagerWrapper.getInstance().startActivityFromRecents(task.key,
-                                ActivityOptions.makeBasic());
-                    } else if (tag instanceof FolderInfo) {
-                        FolderIcon folderIcon = (FolderIcon) view;
-                        Folder folder = folderIcon.getFolder();
-
-                        setTaskbarWindowFullscreen(true);
-
-                        mTaskbarContainerView.post(() -> {
-                            folder.animateOpen();
-
-                            folder.iterateOverItems((itemInfo, itemView) -> {
-                                itemView.setOnClickListener(getItemOnClickListener());
-                                itemView.setOnLongClickListener(getItemOnLongClickListener());
-                                // To play haptic when dragging, like other Taskbar items do.
-                                itemView.setHapticFeedbackEnabled(true);
-                                return false;
-                            });
-                        });
-                    } else {
-                        ItemClickHandler.INSTANCE.onClick(view);
-                    }
-
-                    AbstractFloatingView.closeAllOpenViews(
-                            mTaskbarContainerView.getTaskbarActivityContext());
-                };
-            }
-
-            @Override
-            public View.OnLongClickListener getItemOnLongClickListener() {
-                return mDragController::startSystemDragOnLongClick;
-            }
-
-            @Override
-            public int getEmptyHotseatViewVisibility(TaskbarView taskbarView) {
-                // When on the home screen, we want the empty hotseat views to take up their full
-                // space so that the others line up with the home screen hotseat.
-                boolean isOnHomeScreen = taskbarView == mTaskbarViewOnHome
-                        || mLauncher.hasBeenResumed() || mIsAnimatingToLauncher;
-                return isOnHomeScreen ? INVISIBLE : GONE;
-            }
-
-            @Override
-            public float getNonIconScale(TaskbarView taskbarView) {
-                return taskbarView == mTaskbarViewOnHome ? getTaskbarScaleOnHome() : 1f;
-            }
-
-            @Override
-            public void onItemPositionsChanged(TaskbarView taskbarView) {
-                if (taskbarView == mTaskbarViewOnHome) {
-                    alignRealHotseatWithTaskbar();
-                }
-            }
-
-            @Override
-            public void onNavigationButtonClick(@TaskbarButton int buttonType) {
-                mNavButtonController.onButtonClick(buttonType);
-            }
-        };
-    }
-
-    private TaskbarHotseatControllerCallbacks createTaskbarHotseatControllerCallbacks() {
-        return new TaskbarHotseatControllerCallbacks() {
-            @Override
-            public void updateHotseatItems(ItemInfo[] hotseatItemInfos) {
-                mTaskbarViewInApp.updateHotseatItems(hotseatItemInfos);
-            }
-        };
-    }
-
-    /**
-     * Initializes the Taskbar, including adding it to the screen.
-     */
-    public void init() {
-        mNavMode = SysUINavigationMode.INSTANCE.get(mLauncher)
-                .addModeChangeListener(mNavigationModeChangeListener);
-        mTaskbarViewInApp.init(mHotseatController.getNumHotseatIcons(), mNavMode);
-        mTaskbarViewOnHome.init(mHotseatController.getNumHotseatIcons(), mNavMode);
-        mTaskbarContainerView.init(mTaskbarViewInApp);
-        mImeBarView.init(createTaskbarViewCallbacks());
-        addToWindowManager();
-        mTaskbarStateHandler.setTaskbarCallbacks(createTaskbarStateHandlerCallbacks());
-        mTaskbarAnimationController.init();
-        mHotseatController.init();
-
-        setWhichTaskbarViewIsVisible(mLauncher.hasBeenResumed()
-                ? mTaskbarViewOnHome
-                : mTaskbarViewInApp);
-    }
-
-    private TaskbarStateHandlerCallbacks createTaskbarStateHandlerCallbacks() {
-        return new TaskbarStateHandlerCallbacks() {
-            @Override
-            public AnimatedFloat getAlphaTarget() {
-                return mTaskbarAnimationController.getTaskbarVisibilityForLauncherState();
-            }
-
-            @Override
-            public AnimatedFloat getScaleTarget() {
-                return mTaskbarAnimationController.getTaskbarScaleForLauncherState();
-            }
-
-            @Override
-            public AnimatedFloat getTranslationYTarget() {
-                return mTaskbarAnimationController.getTaskbarTranslationYForLauncherState();
-            }
-        };
-    }
-
-    /**
-     * Removes the Taskbar from the screen, and removes any obsolete listeners etc.
-     */
-    public void cleanup() {
-        if (mAnimator != null) {
-            // End this first, in case it relies on properties that are about to be cleaned up.
-            mAnimator.end();
-        }
-
-        mTaskbarViewInApp.cleanup();
-        mTaskbarViewOnHome.cleanup();
-        mTaskbarContainerView.cleanup();
-        mImeBarView.cleanup();
-        removeFromWindowManager();
-        mTaskbarStateHandler.setTaskbarCallbacks(null);
-        mTaskbarAnimationController.cleanup();
-        mHotseatController.cleanup();
-
-        setWhichTaskbarViewIsVisible(null);
-        SysUINavigationMode.INSTANCE.get(mLauncher)
-                .removeModeChangeListener(mNavigationModeChangeListener);
-    }
-
-    private void removeFromWindowManager() {
-        mWindowManager.removeViewImmediate(mTaskbarContainerView);
-    }
-
-    private void addToWindowManager() {
-        final int gravity = Gravity.BOTTOM;
-
-        mWindowLayoutParams = new WindowManager.LayoutParams(
-                mTaskbarSize.x,
-                mTaskbarSize.y,
-                TYPE_APPLICATION_OVERLAY,
-                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
-                PixelFormat.TRANSLUCENT);
-        mWindowLayoutParams.setTitle(WINDOW_TITLE);
-        mWindowLayoutParams.packageName = mLauncher.getPackageName();
-        mWindowLayoutParams.gravity = gravity;
-        mWindowLayoutParams.setFitInsetsTypes(0);
-        mWindowLayoutParams.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING;
-        mWindowLayoutParams.layoutInDisplayCutoutMode = LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
-        mWindowLayoutParams.setSystemApplicationOverlay(true);
-
-        WindowManagerWrapper wmWrapper = WindowManagerWrapper.getInstance();
-        wmWrapper.setProvidesInsetsTypes(
-                mWindowLayoutParams,
-                new int[] { ITYPE_EXTRA_NAVIGATION_BAR, ITYPE_BOTTOM_TAPPABLE_ELEMENT }
-        );
-
-        TaskbarContainerView.LayoutParams taskbarLayoutParams =
-                new TaskbarContainerView.LayoutParams(mTaskbarSize.x, mTaskbarSize.y);
-        taskbarLayoutParams.gravity = gravity;
-        mTaskbarViewInApp.setLayoutParams(taskbarLayoutParams);
-
-        mWindowManager.addView(mTaskbarContainerView, mWindowLayoutParams);
-    }
-
-    private void onNavModeChanged(SysUINavigationMode.Mode newMode) {
-        mNavMode = newMode;
-        cleanup();
-        init();
-    }
-
     /**
      * Should be called from onResume() and onPause(), and animates the Taskbar accordingly.
      */
@@ -401,13 +168,14 @@ public class TaskbarController implements TaskbarOverviewProxyDelegate {
             @Override
             public void onAnimationStart(Animator animation) {
                 mIsAnimatingToLauncher = true;
-                mTaskbarViewInApp.updateHotseatItemsVisibility();
+                mTaskbarView.setHolesAllowedInLayout(true);
+                mTaskbarView.updateHotseatItemsVisibility();
             }
 
             @Override
             public void onAnimationEnd(Animator animation) {
                 mIsAnimatingToLauncher = false;
-                setWhichTaskbarViewIsVisible(mTaskbarViewOnHome);
+                setTaskbarViewVisible(false);
             }
         });
 
@@ -420,44 +188,21 @@ public class TaskbarController implements TaskbarOverviewProxyDelegate {
         anim.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationStart(Animator animation) {
-                mTaskbarViewInApp.updateHotseatItemsVisibility();
-                setWhichTaskbarViewIsVisible(mTaskbarViewInApp);
+                mTaskbarView.updateHotseatItemsVisibility();
+                setTaskbarViewVisible(true);
             }
 
             @Override
             public void onAnimationEnd(Animator animation) {
+                mTaskbarView.setHolesAllowedInLayout(false);
             }
         });
         return anim.buildAnim();
     }
 
-    /**
-     * Should be called when the IME visibility changes, so we can hide/show Taskbar accordingly.
-     */
-    public void setIsImeVisible(boolean isImeVisible) {
-        mTaskbarAnimationController.animateToVisibilityForIme(isImeVisible ? 0 : 1);
-        blockTaskbarTouchesForIme(isImeVisible);
-    }
-
-    /**
-     * When in 3 button nav, the above doesn't get called since we prevent sysui nav bar from
-     * instantiating at all, which is what's responsible for sending sysui state flags over.
-     *
-     * @param vis IME visibility flag
-     * @param backDisposition Used to determine back button behavior for software keyboard
-     *                        See BACK_DISPOSITION_* constants in {@link InputMethodService}
-     */
-    public void updateImeStatus(int displayId, int vis, int backDisposition,
-            boolean showImeSwitcher) {
-        if (displayId != mTaskbarContainerView.getContext().getDisplayId() ||
-                mNavMode != SysUINavigationMode.Mode.THREE_BUTTONS) {
-            return;
-        }
-
-        boolean imeVisible = (vis & InputMethodService.IME_VISIBLE) != 0;
-        mTaskbarAnimationController.animateToVisibilityForIme(imeVisible ? 0 : 1);
-        mImeBarView.setImeSwitcherVisibility(showImeSwitcher);
-        blockTaskbarTouchesForIme(imeVisible);
+    @Override
+    protected void onImeVisible(TaskbarContainerView containerView, boolean isVisible) {
+        mTaskbarAnimationController.animateToVisibilityForIme(isVisible ? 0 : 1);
     }
 
     /**
@@ -472,24 +217,17 @@ public class TaskbarController implements TaskbarOverviewProxyDelegate {
      * @return Whether any Taskbar item could handle the given MotionEvent if given the chance.
      */
     public boolean isEventOverAnyTaskbarItem(MotionEvent ev) {
-        return mTaskbarViewInApp.isEventOverAnyItem(ev);
+        return mTaskbarView.isEventOverAnyItem(ev);
     }
 
     public boolean isDraggingItem() {
-        return mTaskbarViewInApp.isDraggingItem() || mTaskbarViewOnHome.isDraggingItem();
-    }
-
-    /**
-     * @return Whether the given View is in the same window as Taskbar.
-     */
-    public boolean isViewInTaskbar(View v) {
-        return mTaskbarContainerView.isAttachedToWindow()
-                && mTaskbarContainerView.getWindowId().equals(v.getWindowId());
+        return mTaskbarView.isDraggingItem();
     }
 
     /**
      * Pads the Hotseat to line up exactly with Taskbar's copy of the Hotseat.
      */
+    @Override
     public void alignRealHotseatWithTaskbar() {
         Rect hotseatBounds = new Rect();
         DeviceProfile grid = mLauncher.getDeviceProfile();
@@ -498,60 +236,28 @@ public class TaskbarController implements TaskbarOverviewProxyDelegate {
         int hotseatTopDiff = hotseatHeight - grid.taskbarSize - taskbarOffset;
         int hotseatBottomDiff = taskbarOffset;
 
-        mTaskbarViewOnHome.getHotseatBounds().roundOut(hotseatBounds);
+        RectF hotseatBoundsF = mTaskbarView.getHotseatBounds();
+        Utilities.scaleRectFAboutPivot(hotseatBoundsF, getTaskbarScaleOnHome(),
+                mTaskbarView.getPivotX(), mTaskbarView.getPivotY());
+        hotseatBoundsF.round(hotseatBounds);
         mLauncher.getHotseat().setPadding(hotseatBounds.left,
                 hotseatBounds.top + hotseatTopDiff,
-                mTaskbarViewOnHome.getWidth() - hotseatBounds.right,
-                mTaskbarViewOnHome.getHeight() - hotseatBounds.bottom + hotseatBottomDiff);
-    }
-
-    private void setWhichTaskbarViewIsVisible(@Nullable TaskbarView visibleTaskbar) {
-        mTaskbarViewInApp.setVisibility(visibleTaskbar == mTaskbarViewInApp
-                ? VISIBLE : INVISIBLE);
-        mTaskbarViewOnHome.setVisibility(visibleTaskbar == mTaskbarViewOnHome
-                ? VISIBLE : INVISIBLE);
-        mLauncher.getHotseat().setIconsAlpha(visibleTaskbar != mTaskbarViewInApp ? 1f : 0f);
-    }
-
-    private void blockTaskbarTouchesForIme(boolean block) {
-        mTaskbarViewOnHome.setTouchesEnabled(!block);
-        mTaskbarViewInApp.setTouchesEnabled(!block);
+                mTaskbarView.getWidth() - hotseatBounds.right,
+                mTaskbarView.getHeight() - hotseatBounds.bottom + hotseatBottomDiff);
     }
 
     /**
      * Returns the ratio of the taskbar icon size on home vs in an app.
      */
     public float getTaskbarScaleOnHome() {
-        DeviceProfile inAppDp = mTaskbarContainerView.getTaskbarActivityContext()
-                .getDeviceProfile();
-        DeviceProfile onHomeDp = ActivityContext.lookupContext(mTaskbarViewOnHome.getContext())
-                .getDeviceProfile();
+        DeviceProfile inAppDp = mContext.getDeviceProfile();
+        DeviceProfile onHomeDp = mLauncher.getDeviceProfile();
         return (float) onHomeDp.cellWidthPx / inAppDp.cellWidthPx;
     }
 
-    /**
-     * Updates the TaskbarContainer to MATCH_PARENT vs original Taskbar size.
-     */
-    private void setTaskbarWindowFullscreen(boolean fullscreen) {
-        setTaskbarWindowHeight(fullscreen ? MATCH_PARENT : mTaskbarSize.y);
-    }
-
-    /**
-     * Updates the TaskbarContainer height (pass mTaskbarSize.y to reset).
-     */
-    private void setTaskbarWindowHeight(int height) {
-        mWindowLayoutParams.width = mTaskbarSize.x;
-        mWindowLayoutParams.height = height;
-        mWindowManager.updateViewLayout(mTaskbarContainerView, mWindowLayoutParams);
-    }
-
-    /**
-     * Contains methods that TaskbarStateHandler can call to interface with TaskbarController.
-     */
-    protected interface TaskbarStateHandlerCallbacks {
-        AnimatedFloat getAlphaTarget();
-        AnimatedFloat getScaleTarget();
-        AnimatedFloat getTranslationYTarget();
+    void setTaskbarViewVisible(boolean isVisible) {
+        mTaskbarView.setIconsVisibility(isVisible);
+        mLauncher.getHotseat().setIconsAlpha(isVisible ? 0f : 1f);
     }
 
     /**
@@ -565,32 +271,4 @@ public class TaskbarController implements TaskbarOverviewProxyDelegate {
         void updateTaskbarScale(float scale);
         void updateTaskbarTranslationY(float translationY);
     }
-
-    /**
-     * Contains methods that TaskbarContainerView can call to interface with TaskbarController.
-     */
-    protected interface TaskbarContainerViewCallbacks {
-        void onViewRemoved();
-        boolean isTaskbarTouchable();
-    }
-
-    /**
-     * Contains methods that TaskbarView can call to interface with TaskbarController.
-     */
-    protected interface TaskbarViewCallbacks {
-        View.OnClickListener getItemOnClickListener();
-        View.OnLongClickListener getItemOnLongClickListener();
-        int getEmptyHotseatViewVisibility(TaskbarView taskbarView);
-        /** Returns how much to scale non-icon elements such as spacing and dividers. */
-        float getNonIconScale(TaskbarView taskbarView);
-        void onItemPositionsChanged(TaskbarView taskbarView);
-        void onNavigationButtonClick(@TaskbarButton int buttonType);
-    }
-
-    /**
-     * Contains methods that TaskbarHotseatController can call to interface with TaskbarController.
-     */
-    protected interface TaskbarHotseatControllerCallbacks {
-        void updateHotseatItems(ItemInfo[] hotseatItemInfos);
-    }
 }