Merge "Hide task bar when folding before the new config renders the correct task bar" into main
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 55deca8..b69f657 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -36,12 +36,14 @@
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_FOLDER_OPEN;
 import static com.android.launcher3.taskbar.TaskbarAutohideSuspendController.FLAG_AUTOHIDE_SUSPEND_DRAGGING;
 import static com.android.launcher3.taskbar.TaskbarAutohideSuspendController.FLAG_AUTOHIDE_SUSPEND_FULLSCREEN;
+import static com.android.launcher3.taskbar.TaskbarDragLayerController.TASKBAR_REAPPEAR_DELAY_MS;
 import static com.android.launcher3.testing.shared.ResourceUtils.getBoolByName;
 import static com.android.quickstep.util.AnimUtils.completeRunnableListCallback;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_NOTIFICATION_PANEL_VISIBLE;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_VOICE_INTERACTION_WINDOW_SHOWING;
 
 import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
 import android.app.ActivityOptions;
 import android.content.ActivityNotFoundException;
@@ -77,6 +79,7 @@
 import com.android.launcher3.LauncherPrefs;
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.R;
+import com.android.launcher3.anim.AnimatedFloat;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.apppairs.AppPairIcon;
 import com.android.launcher3.config.FeatureFlags;
@@ -1377,6 +1380,23 @@
         });
     }
 
+    public void hideTaskbarWhenFolding() {
+        AnimatedFloat alphaAnim = mControllers.taskbarDragLayerController.getTaskbarAlpha();
+        alphaAnim.cancelAnimation();
+        alphaAnim.updateValue(0);
+        ObjectAnimator animator = alphaAnim.animateToValue(1).setDuration(0);
+        animator.setStartDelay(TASKBAR_REAPPEAR_DELAY_MS);
+        animator.start();
+    }
+
+    public void cancelHideTaskbarWhenFolding() {
+        mControllers.taskbarDragLayerController.getTaskbarAlpha().cancelAnimation();
+    }
+
+    public void resetHideTaskbarWhenUnfolding() {
+        mControllers.taskbarDragLayerController.getTaskbarAlpha().updateValue(1);
+    }
+
     protected boolean isUserSetupComplete() {
         return mIsUserSetupComplete;
     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
index 3f5402f..74eda24 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
@@ -44,6 +44,12 @@
     private static final boolean DEBUG = SystemProperties.getBoolean(
             "persist.debug.draw_taskbar_debug_ui", false);
 
+    // Delay to reset the task bar alpha back to 1 after fading it for transition from unfold to
+    // fold. Normally this is not needed since the new task bar is recreated after fading, but in
+    // case something goes wrong this provides a fallback mechanism to make sure the task bar is
+    // visible after the transition finishes.
+    public static final long TASKBAR_REAPPEAR_DELAY_MS = 2000;
+
     private final TaskbarActivityContext mActivity;
     private final TaskbarDragLayer mTaskbarDragLayer;
     private final int mFolderMargin;
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index 7c7c426..4dd2f44 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -30,6 +30,7 @@
 import static com.android.launcher3.util.DisplayController.CHANGE_NAVIGATION_MODE;
 import static com.android.launcher3.util.DisplayController.CHANGE_TASKBAR_PINNING;
 import static com.android.launcher3.util.DisplayController.TASKBAR_NOT_DESTROYED_TAG;
+import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.launcher3.util.FlagDebugUtils.formatFlagChange;
 import static com.android.quickstep.util.SystemActionConstants.ACTION_SHOW_TASKBAR;
@@ -43,6 +44,7 @@
 import android.content.IntentFilter;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
+import android.hardware.devicestate.DeviceStateManager;
 import android.hardware.display.DisplayManager;
 import android.net.Uri;
 import android.os.Handler;
@@ -109,6 +111,7 @@
 
     private final Context mContext;
     private final @Nullable Context mNavigationBarPanelContext;
+    private final DeviceStateManager mDeviceStateManager;
     private WindowManager mWindowManager;
     private FrameLayout mTaskbarRootLayout;
     private boolean mAddedWindow;
@@ -175,7 +178,8 @@
         }
     };
 
-    UnfoldTransitionProgressProvider.TransitionProgressListener mUnfoldTransitionProgressListener =
+    private final UnfoldTransitionProgressProvider.TransitionProgressListener
+            mUnfoldTransitionProgressListener =
             new UnfoldTransitionProgressProvider.TransitionProgressListener() {
                 @Override
                 public void onTransitionStarted() {
@@ -204,6 +208,9 @@
                 }
             };
 
+    private final DeviceStateManager.FoldStateListener mFoldStateListener;
+    private Boolean mFolded;
+
     @SuppressLint("WrongConstant")
     public TaskbarManager(TouchInteractionService service) {
         Display display =
@@ -229,6 +236,29 @@
                 }
             };
         }
+        // Temporary solution to mitigate the visual jump from folding the device. Currently, the
+        // screen turns on much earlier than we receive the onConfigurationChanged callback or
+        // receiving the correct device profile. While the ideal the solution is to align turning
+        // the screen on after onConfigurationChanged (by either delaying turning on the screen or
+        // figuring out what is causing the delay in getting onConfigurationChanged callback), one
+        // easy temporary mitigation is to dimming the bar so that the visual jump isn't as glaring.
+        mFoldStateListener = new DeviceStateManager.FoldStateListener(mContext, folded -> {
+            boolean firstTime = mFolded == null;
+            if (mTaskbarActivityContext == null) {
+                return;
+            }
+            if (!firstTime && mFolded.booleanValue() != folded) {
+                mTaskbarActivityContext.cancelHideTaskbarWhenFolding();
+            }
+            mFolded = folded;
+            if (folded && !firstTime) {
+                mTaskbarActivityContext.hideTaskbarWhenFolding();
+            } else {
+                mTaskbarActivityContext.resetHideTaskbarWhenUnfolding();
+            }
+        });
+        mDeviceStateManager = mContext.getSystemService(DeviceStateManager.class);
+        mDeviceStateManager.registerCallback(MAIN_EXECUTOR, mFoldStateListener);
         mNavButtonController = new TaskbarNavButtonController(service,
                 SystemUiProxy.INSTANCE.get(mContext), new Handler(),
                 AssistUtils.newInstance(mContext));
@@ -588,6 +618,7 @@
         Log.d(TASKBAR_NOT_DESTROYED_TAG, "unregistering component callbacks from destroy().");
         mContext.unregisterComponentCallbacks(mComponentCallbacks);
         mContext.unregisterReceiver(mShutdownReceiver);
+        mDeviceStateManager.unregisterCallback(mFoldStateListener);
     }
 
     public @Nullable TaskbarActivityContext getCurrentActivityContext() {