Non-priv apps are not allowed to use always/never lock task mode

It worked oppositely since 2bf2832.

Bug: 162808850
Test: atest ActivityRecordTests
Change-Id: Ic5f1b1531816a90ff341597e6d012a6c62c04480

services/core/java/com/android/server/wm/ActivityRecord.java

@@ -1675,7 +1675,8 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
 
     static int getLockTaskLaunchMode(ActivityInfo aInfo, @Nullable ActivityOptions options) {
         int lockTaskLaunchMode = aInfo.lockTaskLaunchMode;
-        if (aInfo.applicationInfo.isPrivilegedApp()
+        // Non-priv apps are not allowed to use always or never, fall back to default
+        if (!aInfo.applicationInfo.isPrivilegedApp()
                 && (lockTaskLaunchMode == LOCK_TASK_LAUNCH_MODE_ALWAYS
                 || lockTaskLaunchMode == LOCK_TASK_LAUNCH_MODE_NEVER)) {
             lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_DEFAULT;

services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java

@@ -22,6 +22,10 @@ import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
 import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
 import static android.content.pm.ActivityInfo.CONFIG_ORIENTATION;
 import static android.content.pm.ActivityInfo.CONFIG_SCREEN_LAYOUT;
+import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_ALWAYS;
+import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_DEFAULT;
+import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_IF_ALLOWLISTED;
+import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_NEVER;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
 import static android.content.res.Configuration.ORIENTATION_LANDSCAPE;
@@ -69,10 +73,8 @@ import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyString;
-import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.ArgumentMatchers.same;
 import static org.mockito.Mockito.clearInvocations;
-import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.never;
 
 import android.app.ActivityManager.TaskSnapshot;
@@ -84,6 +86,7 @@ import android.app.servertransaction.PauseActivityItem;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
+import android.content.pm.ApplicationInfo;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.graphics.Rect;
@@ -1685,6 +1688,32 @@ public class ActivityRecordTests extends WindowTestsBase {
         assertFalse(mActivity.canTurnScreenOn());
     }
 
+    @Test
+    public void testGetLockTaskLaunchMode() {
+        final ActivityOptions options = ActivityOptions.makeBasic().setLockTaskEnabled(true);
+        mActivity.info.lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_DEFAULT;
+        assertEquals(LOCK_TASK_LAUNCH_MODE_IF_ALLOWLISTED,
+                ActivityRecord.getLockTaskLaunchMode(mActivity.info, options));
+
+        mActivity.info.lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_ALWAYS;
+        assertEquals(LOCK_TASK_LAUNCH_MODE_DEFAULT,
+                ActivityRecord.getLockTaskLaunchMode(mActivity.info, null /*options*/));
+
+        mActivity.info.lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_NEVER;
+        assertEquals(LOCK_TASK_LAUNCH_MODE_DEFAULT,
+                ActivityRecord.getLockTaskLaunchMode(mActivity.info, null /*options*/));
+
+        mActivity.info.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
+        mActivity.info.lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_ALWAYS;
+        assertEquals(LOCK_TASK_LAUNCH_MODE_ALWAYS,
+                ActivityRecord.getLockTaskLaunchMode(mActivity.info, null /*options*/));
+
+        mActivity.info.lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_NEVER;
+        assertEquals(LOCK_TASK_LAUNCH_MODE_NEVER,
+                ActivityRecord.getLockTaskLaunchMode(mActivity.info, null /*options*/));
+
+    }
+
     /**
      * Creates an activity on display. For non-default display request it will also create a new
      * display with custom DisplayInfo.