Merge "Taskbar System Action with Broadcast Receiver." into tm-qpr-dev
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 547f462..a779d44 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -263,6 +263,13 @@
         }
     }
 
+    /**
+     * Show Taskbar upon receiving broadcast
+     */
+    public void showTaskbarFromBroadcast() {
+        mControllers.taskbarStashController.showTaskbarFromBroadcast();
+    }
+
     @Override
     public DeviceProfile getDeviceProfile() {
         return mDeviceProfile;
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
index a6da56d..a71e5db 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarControllers.java
@@ -154,7 +154,7 @@
         taskbarKeyguardController.init(navbarButtonsViewController);
         taskbarSpringOnStashController.init(this);
         stashedHandleViewController.init(this);
-        taskbarStashController.init(this, sharedState.setupUIVisible);
+        taskbarStashController.init(this, sharedState.setupUIVisible, mSharedState);
         taskbarEduController.init(this);
         taskbarPopupController.init(this);
         taskbarForceVisibleImmersiveController.init(this);
@@ -225,6 +225,7 @@
         voiceInteractionWindowController.onDestroy();
         taskbarRecentAppsController.onDestroy();
         keyboardQuickSwitchController.onDestroy();
+        taskbarStashController.onDestroy();
 
         mControllersToLog = null;
         mBackgroundRendererControllers = null;
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarEduTooltipController.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarEduTooltipController.kt
index bd8e346..22ed284 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarEduTooltipController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarEduTooltipController.kt
@@ -62,7 +62,8 @@
         get() = !Utilities.isRunningInTestHarness() && ENABLE_TASKBAR_EDU_TOOLTIP.get()
     private val isOpen: Boolean
         get() = tooltip?.isOpen ?: false
-
+    val isBeforeTooltipFeaturesStep: Boolean
+        get() = isTooltipEnabled && tooltipStep <= TOOLTIP_STEP_FEATURES
     private lateinit var controllers: TaskbarControllers
 
     @TaskbarEduTooltipStep
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index 4c131ee..c537106 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -15,17 +15,22 @@
  */
 package com.android.launcher3.taskbar;
 
+import static android.content.Context.RECEIVER_NOT_EXPORTED;
 import static android.content.pm.PackageManager.FEATURE_PC;
 import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.WindowManager.LayoutParams.TYPE_NAVIGATION_BAR_PANEL;
 
 import static com.android.launcher3.util.DisplayController.CHANGE_DENSITY;
 import static com.android.launcher3.util.DisplayController.CHANGE_NAVIGATION_MODE;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.launcher3.util.FlagDebugUtils.formatFlagChange;
 
+import android.annotation.SuppressLint;
+import android.app.PendingIntent;
 import android.content.ComponentCallbacks;
 import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
 import android.hardware.display.DisplayManager;
@@ -116,6 +121,17 @@
 
     private boolean mUserUnlocked = false;
 
+    public static final int SYSTEM_ACTION_ID_TASKBAR = 499;
+
+    /**
+     * For Taskbar broadcast intent filter.
+     */
+    public static final String ACTION_SHOW_TASKBAR = "ACTION_SHOW_TASKBAR";
+
+    private final SimpleBroadcastReceiver mTaskbarBroadcastReceiver =
+            new SimpleBroadcastReceiver(this::showTaskbarFromBroadcast);
+
+    @SuppressLint("WrongConstant")
     public TaskbarManager(TouchInteractionService service) {
         mDisplayController = DisplayController.INSTANCE.get(service);
         Display display =
@@ -200,7 +216,17 @@
                 mNavBarKidsModeListener);
         mContext.registerComponentCallbacks(mComponentCallbacks);
         mShutdownReceiver.register(mContext, Intent.ACTION_SHUTDOWN);
-
+        UI_HELPER_EXECUTOR.execute(() -> {
+            mSharedState.taskbarSystemActionPendingIntent = PendingIntent.getBroadcast(
+                    mContext,
+                    SYSTEM_ACTION_ID_TASKBAR,
+                    new Intent(ACTION_SHOW_TASKBAR).setPackage(mContext.getPackageName()),
+                    PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);
+            mContext.registerReceiver(
+                    mTaskbarBroadcastReceiver,
+                    new IntentFilter(ACTION_SHOW_TASKBAR),
+                    RECEIVER_NOT_EXPORTED);
+        });
         recreateTaskbar();
     }
 
@@ -214,6 +240,15 @@
     }
 
     /**
+     * Show Taskbar upon receiving broadcast
+     */
+    private void showTaskbarFromBroadcast(Intent intent) {
+        if (ACTION_SHOW_TASKBAR.equals(intent.getAction()) && mTaskbarActivityContext != null) {
+            mTaskbarActivityContext.showTaskbarFromBroadcast();
+        }
+    }
+
+    /**
      * Displays a frame of the first Launcher reveal animation.
      *
      * This should be used to run a first Launcher reveal animation whose progress matches a swipe
@@ -405,6 +440,8 @@
      * Called when the manager is no longer needed
      */
     public void destroy() {
+        UI_HELPER_EXECUTOR.execute(
+                () -> mTaskbarBroadcastReceiver.unregisterReceiverSafely(mContext));
         destroyExistingTaskbar();
         mDisplayController.removeChangeListener(mDispInfoChangeListener);
         SettingsCache.INSTANCE.get(mContext).unregister(USER_SETUP_COMPLETE_URI,
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
index 6092998..66ca7d9 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarSharedState.java
@@ -17,6 +17,8 @@
 
 import static com.android.launcher3.taskbar.LauncherTaskbarUIController.DISPLAY_PROGRESS_COUNT;
 
+import android.app.PendingIntent;
+
 /**
  * State shared across different taskbar instance
  */
@@ -43,4 +45,7 @@
 
     // LauncherTaskbarUIController#mTaskbarInAppDisplayProgressMultiProp
     public float[] inAppDisplayProgressMultiPropValues = new float[DISPLAY_PROGRESS_COUNT];
+
+    // Taskbar System Action
+    public PendingIntent taskbarSystemActionPendingIntent;
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
index b98f172..c43b621 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
@@ -28,6 +28,8 @@
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TRANSIENT_TASKBAR_HIDE;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TRANSIENT_TASKBAR_SHOW;
 import static com.android.launcher3.taskbar.TaskbarKeyguardController.MASK_ANY_SYSUI_LOCKED;
+import static com.android.launcher3.taskbar.TaskbarManager.SYSTEM_ACTION_ID_TASKBAR;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.launcher3.util.FlagDebugUtils.appendFlag;
 import static com.android.launcher3.util.FlagDebugUtils.formatFlagChange;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_IME_SHOWING;
@@ -38,7 +40,9 @@
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
+import android.app.RemoteAction;
 import android.content.SharedPreferences;
+import android.graphics.drawable.Icon;
 import android.util.Log;
 import android.view.InsetsController;
 import android.view.View;
@@ -224,6 +228,9 @@
                 return (inApp && stashedInApp) || (!inApp && stashedLauncherState) || forceStashed;
             });
 
+    private boolean mIsTaskbarSystemActionRegistered = false;
+    private TaskbarSharedState mTaskbarSharedState;
+
     public TaskbarStashController(TaskbarActivityContext activity) {
         mActivity = activity;
         mPrefs = LauncherPrefs.getPrefs(mActivity);
@@ -234,8 +241,27 @@
         mStashedHeight = mActivity.getDeviceProfile().stashedTaskbarHeight;
     }
 
-    public void init(TaskbarControllers controllers, boolean setupUIVisible) {
+    /**
+     * Show Taskbar upon receiving broadcast
+     */
+    public void showTaskbarFromBroadcast() {
+        // If user is in middle of taskbar education handle go to next step of education
+        if (mControllers.taskbarEduTooltipController.isBeforeTooltipFeaturesStep()) {
+            mControllers.taskbarEduTooltipController.hide();
+            mControllers.taskbarEduTooltipController.maybeShowFeaturesEdu();
+        }
+        updateAndAnimateTransientTaskbar(false);
+    }
+
+    /**
+     * Initializes the controller
+     */
+    public void init(
+            TaskbarControllers controllers,
+            boolean setupUIVisible,
+            TaskbarSharedState sharedState) {
         mControllers = controllers;
+        mTaskbarSharedState = sharedState;
 
         TaskbarDragLayerController dragLayerController = controllers.taskbarDragLayerController;
         mTaskbarBackgroundOffset = dragLayerController.getTaskbarBackgroundOffset();
@@ -992,6 +1018,7 @@
 
     private void notifyStashChange(boolean visible, boolean stashed) {
         mSystemUiProxy.notifyTaskbarStatus(visible, stashed);
+        setUpTaskbarSystemAction(visible);
         // If stashing taskbar is caused by IME visibility, we could just skip updating rounded
         // corner insets since the rounded corners will be covered by IME during IME is showing and
         // taskbar will be restored back to unstashed when IME is hidden.
@@ -1001,6 +1028,39 @@
     }
 
     /**
+     * Setup system action for showing Taskbar depending on its visibility.
+     */
+    public void setUpTaskbarSystemAction(boolean visible) {
+        UI_HELPER_EXECUTOR.execute(() -> {
+            if (!visible || !DisplayController.isTransientTaskbar(mActivity)) {
+                mAccessibilityManager.unregisterSystemAction(SYSTEM_ACTION_ID_TASKBAR);
+                mIsTaskbarSystemActionRegistered = false;
+                return;
+            }
+
+            if (!mIsTaskbarSystemActionRegistered) {
+                RemoteAction taskbarRemoteAction = new RemoteAction(
+                        Icon.createWithResource(mActivity, R.drawable.ic_info_no_shadow),
+                        mActivity.getString(R.string.taskbar_a11y_title),
+                        mActivity.getString(R.string.taskbar_a11y_title),
+                        mTaskbarSharedState.taskbarSystemActionPendingIntent);
+
+                mAccessibilityManager.registerSystemAction(taskbarRemoteAction,
+                        SYSTEM_ACTION_ID_TASKBAR);
+                mIsTaskbarSystemActionRegistered = true;
+            }
+        });
+    }
+
+    /**
+     * Clean up on destroy from TaskbarControllers
+     */
+    public void onDestroy() {
+        UI_HELPER_EXECUTOR.execute(
+                () -> mAccessibilityManager.unregisterSystemAction(SYSTEM_ACTION_ID_TASKBAR));
+    }
+
+    /**
      * Cancels a timeout if any exists.
      */
     public void cancelTimeoutIfExists() {