Add rear display dialog methods to CommandQueue and StatusBarService

Creates new methods through CommandQueue and StatusBarService
to allow DeviceStateManagerService to notify SystemUI
to show the rear display education dialog

Bug: 207686851
Test: CommandQueueTest
Change-Id: I65e22a9940a866bb62b597f5cd4f6ce81d891e12
Merged-In: I65e22a9940a866bb62b597f5cd4f6ce81d891e12

7 files changed, 75 insertions, 14 deletions

diff --git a/core/java/com/android/internal/statusbar/IStatusBar.aidl b/core/java/com/android/internal/statusbar/IStatusBar.aidl
index 1d4b246de5c8..56e1a872423d 100644
--- a/core/java/com/android/internal/statusbar/IStatusBar.aidl
+++ b/core/java/com/android/internal/statusbar/IStatusBar.aidl
@@ -325,4 +325,7 @@ oneway interface IStatusBar
 
     /** Dump protos from SystemUI. The proto definition is defined there */
     void dumpProto(in String[] args, in ParcelFileDescriptor pfd);
+
+    /** Shows rear display educational dialog */
+    void showRearDisplayDialog(int currentBaseState);
 }
diff --git a/core/java/com/android/internal/statusbar/IStatusBarService.aidl b/core/java/com/android/internal/statusbar/IStatusBarService.aidl
index ef8f2db5ff57..e140ce88bf28 100644
--- a/core/java/com/android/internal/statusbar/IStatusBarService.aidl
+++ b/core/java/com/android/internal/statusbar/IStatusBarService.aidl
@@ -226,4 +226,7 @@ interface IStatusBarService
 
     /** Unregisters a nearby media devices provider. */
     void unregisterNearbyMediaDevicesProvider(in INearbyMediaDevicesProvider provider);
+
+    /** Shows rear display educational dialog */
+    void showRearDisplayDialog(int currentBaseState);
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java b/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
index e6d7e4124d01..426d4fcbb27d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
@@ -165,6 +165,7 @@ public class CommandQueue extends IStatusBar.Stub implements
     private static final int MSG_REGISTER_NEARBY_MEDIA_DEVICE_PROVIDER = 66 << MSG_SHIFT;
     private static final int MSG_UNREGISTER_NEARBY_MEDIA_DEVICE_PROVIDER = 67 << MSG_SHIFT;
     private static final int MSG_TILE_SERVICE_REQUEST_LISTENING_STATE = 68 << MSG_SHIFT;
+    private static final int MSG_SHOW_REAR_DISPLAY_DIALOG = 69 << MSG_SHIFT;
 
     public static final int FLAG_EXCLUDE_NONE = 0;
     public static final int FLAG_EXCLUDE_SEARCH_PANEL = 1 << 0;
@@ -474,6 +475,11 @@ public class CommandQueue extends IStatusBar.Stub implements
          */
         default void unregisterNearbyMediaDevicesProvider(
                 @NonNull INearbyMediaDevicesProvider provider) {}
+
+        /**
+         * @see IStatusBar#showRearDisplayDialog
+         */
+        default void showRearDisplayDialog(int currentBaseState) {}
     }
 
     public CommandQueue(Context context) {
@@ -1229,6 +1235,13 @@ public class CommandQueue extends IStatusBar.Stub implements
     }
 
     @Override
+    public void showRearDisplayDialog(int currentBaseState) {
+        synchronized (mLock) {
+            mHandler.obtainMessage(MSG_SHOW_REAR_DISPLAY_DIALOG, currentBaseState).sendToTarget();
+        }
+    }
+
+    @Override
     public void requestAddTile(
             @NonNull ComponentName componentName,
             @NonNull CharSequence appName,
@@ -1724,6 +1737,10 @@ public class CommandQueue extends IStatusBar.Stub implements
                         mCallbacks.get(i).requestTileServiceListeningState(component);
                     }
                     break;
+                case MSG_SHOW_REAR_DISPLAY_DIALOG:
+                    for (int i = 0; i < mCallbacks.size(); i++) {
+                        mCallbacks.get(i).showRearDisplayDialog((Integer) msg.obj);
+                    }
             }
         }
     }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/CommandQueueTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/CommandQueueTest.java
index cf7f8dd26647..42bc7948caf4 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/CommandQueueTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/CommandQueueTest.java
@@ -519,4 +519,12 @@ public class CommandQueueTest extends SysuiTestCase {
         waitForIdleSync();
         verify(mCallbacks).setNavigationBarLumaSamplingEnabled(eq(1), eq(true));
     }
+
+    @Test
+    public void testShowRearDisplayDialog() {
+        final int currentBaseState = 1;
+        mCommandQueue.showRearDisplayDialog(currentBaseState);
+        waitForIdleSync();
+        verify(mCallbacks).showRearDisplayDialog(eq(currentBaseState));
+    }
 }
diff --git a/services/core/java/com/android/server/devicestate/DeviceStateManagerService.java b/services/core/java/com/android/server/devicestate/DeviceStateManagerService.java
index 925fc21737e5..c856cabdc967 100644
--- a/services/core/java/com/android/server/devicestate/DeviceStateManagerService.java
+++ b/services/core/java/com/android/server/devicestate/DeviceStateManagerService.java
@@ -17,10 +17,7 @@
 package com.android.server.devicestate;
 
 import static android.Manifest.permission.CONTROL_DEVICE_STATE;
-import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
 import static android.content.pm.PackageManager.PERMISSION_GRANTED;
-import static android.hardware.devicestate.DeviceStateManager.ACTION_SHOW_REAR_DISPLAY_OVERLAY;
-import static android.hardware.devicestate.DeviceStateManager.EXTRA_ORIGINAL_DEVICE_BASE_STATE;
 import static android.hardware.devicestate.DeviceStateManager.INVALID_DEVICE_STATE;
 import static android.hardware.devicestate.DeviceStateManager.MAXIMUM_DEVICE_STATE;
 import static android.hardware.devicestate.DeviceStateManager.MINIMUM_DEVICE_STATE;
@@ -36,10 +33,7 @@ import android.annotation.IntDef;
 import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.app.ActivityOptions;
-import android.app.WindowConfiguration;
 import android.content.Context;
-import android.content.Intent;
 import android.hardware.devicestate.DeviceStateInfo;
 import android.hardware.devicestate.DeviceStateManager;
 import android.hardware.devicestate.DeviceStateManagerInternal;
@@ -64,6 +58,7 @@ import com.android.internal.util.FrameworkStatsLog;
 import com.android.server.DisplayThread;
 import com.android.server.LocalServices;
 import com.android.server.SystemService;
+import com.android.server.statusbar.StatusBarManagerInternal;
 import com.android.server.wm.ActivityTaskManagerInternal;
 import com.android.server.wm.WindowProcessController;
 
@@ -731,19 +726,18 @@ public final class DeviceStateManagerService extends SystemService {
 
     /**
      * If we get a request to enter rear display  mode, we need to display an educational
-     * overlay to let the user know what will happen. This creates the pending request and then
-     * launches the {@link RearDisplayEducationActivity}
+     * overlay to let the user know what will happen. This calls into the
+     * {@link StatusBarManagerInternal} to notify SystemUI to display the educational dialog.
      */
     @GuardedBy("mLock")
     private void showRearDisplayEducationalOverlayLocked(OverrideRequest request) {
         mRearDisplayPendingOverrideRequest = request;
 
-        Intent intent = new Intent(ACTION_SHOW_REAR_DISPLAY_OVERLAY);
-        intent.setFlags(FLAG_ACTIVITY_NEW_TASK);
-        intent.putExtra(EXTRA_ORIGINAL_DEVICE_BASE_STATE, mBaseState.get().getIdentifier());
-        final ActivityOptions options = ActivityOptions.makeBasic();
-        options.setLaunchWindowingMode(WindowConfiguration.WINDOWING_MODE_FULLSCREEN);
-        getUiContext().startActivity(intent, options.toBundle());
+        StatusBarManagerInternal statusBar =
+                LocalServices.getService(StatusBarManagerInternal.class);
+        if (statusBar != null) {
+            statusBar.showRearDisplayDialog(mBaseState.get().getIdentifier());
+        }
     }
 
     private void cancelStateRequestInternal(int callingPid) {
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
index 690dd10aa3e5..c758f487d4de 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
@@ -172,4 +172,11 @@ public interface StatusBarManagerInternal {
      * @see com.android.internal.statusbar.IStatusBar#setUdfpsHbmListener(IUdfpsHbmListener)
      */
     void setUdfpsHbmListener(IUdfpsHbmListener listener);
+
+    /**
+     * Shows the rear display educational dialog
+     *
+     * @see com.android.internal.statusbar.IStatusBar#showRearDisplayDialog
+     */
+    void showRearDisplayDialog(int currentBaseState);
 }
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
index 036739271c93..194dfb25583f 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
@@ -16,6 +16,7 @@
 
 package com.android.server.statusbar;
 
+import static android.Manifest.permission.CONTROL_DEVICE_STATE;
 import static android.Manifest.permission.INTERACT_ACROSS_USERS;
 import static android.Manifest.permission.INTERACT_ACROSS_USERS_FULL;
 import static android.app.StatusBarManager.DISABLE2_GLOBAL_ACTIONS;
@@ -31,6 +32,7 @@ import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_3BUTTON_OVE
 import android.Manifest;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
 import android.app.ActivityManager;
 import android.app.ActivityManagerInternal;
 import android.app.ActivityThread;
@@ -685,6 +687,15 @@ public class StatusBarManagerService extends IStatusBarService.Stub implements D
                 } catch (RemoteException ex) { }
             }
         }
+
+        @Override
+        public void showRearDisplayDialog(int currentBaseState) {
+            if (mBar != null) {
+                try {
+                    mBar.showRearDisplayDialog(currentBaseState);
+                } catch (RemoteException ex) { }
+            }
+        }
     };
 
     private final GlobalActionsProvider mGlobalActionsProvider = new GlobalActionsProvider() {
@@ -1288,6 +1299,11 @@ public class StatusBarManagerService extends IStatusBarService.Stub implements D
                 "StatusBarManagerService");
     }
 
+    @RequiresPermission(android.Manifest.permission.CONTROL_DEVICE_STATE)
+    private void enforceControlDeviceStatePermission() {
+        mContext.enforceCallingOrSelfPermission(CONTROL_DEVICE_STATE, "StatusBarManagerService");
+    }
+
     private boolean doesCallerHoldInteractAcrossUserPermission() {
         return mContext.checkCallingPermission(INTERACT_ACROSS_USERS_FULL) == PERMISSION_GRANTED
                 || mContext.checkCallingPermission(INTERACT_ACROSS_USERS) == PERMISSION_GRANTED;
@@ -2171,6 +2187,19 @@ public class StatusBarManagerService extends IStatusBarService.Stub implements D
         }
     }
 
+    @RequiresPermission(android.Manifest.permission.CONTROL_DEVICE_STATE)
+    @Override
+    public void showRearDisplayDialog(int currentState) {
+        enforceControlDeviceStatePermission();
+        if (mBar != null) {
+            try {
+                mBar.showRearDisplayDialog(currentState);
+            } catch (RemoteException e) {
+                Slog.e(TAG, "showRearDisplayDialog", e);
+            }
+        }
+    }
+
     /** @hide */
     public void passThroughShellCommand(String[] args, FileDescriptor fd) {
         enforceStatusBarOrShell();