From 72f1afcf024699eb4b3536982709074d2e4ca498 Mon Sep 17 00:00:00 2001
From: Tracy Zhou <tracyzhou@google.com>
Date: Tue, 26 Oct 2021 13:26:27 -0700
Subject: [PATCH] Delete TaskbarStateHander

Bug: 204220602
Test: N/A
Change-Id: I6c26b4d3b8acb35750be56986555350e84f31ecb
---
 .../launcher3/BaseQuickstepLauncher.java      |  8 ---
 .../taskbar/TaskbarStateHandler.java          | 71 -------------------
 2 files changed, 79 deletions(-)
 delete mode 100644 quickstep/src/com/android/launcher3/taskbar/TaskbarStateHandler.java

diff --git a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
index e8ea671ba2..6e2d2a9cc6 100644
--- a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
@@ -57,7 +57,6 @@ import com.android.launcher3.statehandlers.DepthController;
 import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.taskbar.LauncherTaskbarUIController;
 import com.android.launcher3.taskbar.TaskbarManager;
-import com.android.launcher3.taskbar.TaskbarStateHandler;
 import com.android.launcher3.uioverrides.RecentsViewStateController;
 import com.android.launcher3.util.ActivityOptionsWrapper;
 import com.android.launcher3.util.DisplayController;
@@ -115,8 +114,6 @@ public abstract class BaseQuickstepLauncher extends Launcher
     private @Nullable OverviewCommandHelper mOverviewCommandHelper;
     private @Nullable LauncherTaskbarUIController mTaskbarUIController;
 
-    private final TaskbarStateHandler mTaskbarStateHandler = new TaskbarStateHandler(this);
-
     // Will be updated when dragging from taskbar.
     private @Nullable DragOptions mNextWorkspaceDragOptions = null;
 
@@ -368,17 +365,12 @@ public abstract class BaseQuickstepLauncher extends Launcher
         out.add(getDepthController());
         out.add(new RecentsViewStateController(this));
         out.add(new BackButtonAlphaHandler(this));
-        out.add(getTaskbarStateHandler());
     }
 
     public DepthController getDepthController() {
         return mDepthController;
     }
 
-    public TaskbarStateHandler getTaskbarStateHandler() {
-        return mTaskbarStateHandler;
-    }
-
     @Nullable
     public UnfoldTransitionProgressProvider getUnfoldTransitionProgressProvider() {
         return mUnfoldTransitionProgressProvider;
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarStateHandler.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarStateHandler.java
deleted file mode 100644
index edd2a22778..0000000000
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarStateHandler.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (C) 2021 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;
-
-import static com.android.launcher3.LauncherState.TASKBAR;
-import static com.android.launcher3.anim.Interpolators.LINEAR;
-
-import com.android.launcher3.BaseQuickstepLauncher;
-import com.android.launcher3.LauncherState;
-import com.android.launcher3.anim.PendingAnimation;
-import com.android.launcher3.anim.PropertySetter;
-import com.android.launcher3.statemanager.StateManager;
-import com.android.launcher3.states.StateAnimationConfig;
-import com.android.quickstep.AnimatedFloat;
-import com.android.quickstep.SystemUiProxy;
-
-/**
- * StateHandler to animate Taskbar according to Launcher's state machine.
- */
-public class TaskbarStateHandler implements StateManager.StateHandler<LauncherState> {
-
-    private final BaseQuickstepLauncher mLauncher;
-
-    private AnimatedFloat mNavbarButtonAlpha = new AnimatedFloat(this::updateNavbarButtonAlpha);
-
-    public TaskbarStateHandler(BaseQuickstepLauncher launcher) {
-        mLauncher = launcher;
-    }
-
-    @Override
-    public void setState(LauncherState state) {
-        setState(state, PropertySetter.NO_ANIM_PROPERTY_SETTER);
-        // Force update the alpha in case it was not initialized properly
-        updateNavbarButtonAlpha();
-    }
-
-    @Override
-    public void setStateWithAnimation(LauncherState toState, StateAnimationConfig config,
-            PendingAnimation animation) {
-        setState(toState, animation);
-    }
-
-    /**
-     * Sets the provided state
-     */
-    public void setState(LauncherState toState, PropertySetter setter) {
-        boolean isTaskbarVisible = (toState.getVisibleElements(mLauncher) & TASKBAR) != 0;
-        // Make the nav bar visible in states that taskbar isn't visible.
-        // TODO: We should draw our own handle instead of showing the nav bar.
-        float navbarButtonAlpha = isTaskbarVisible ? 0f : 1f;
-        setter.setFloat(mNavbarButtonAlpha, AnimatedFloat.VALUE, navbarButtonAlpha, LINEAR);
-    }
-
-
-    private void updateNavbarButtonAlpha() {
-        SystemUiProxy.INSTANCE.get(mLauncher).setNavBarButtonAlpha(mNavbarButtonAlpha.value, false);
-    }
-}