Respect CentralSurfaces being optional in NavBarHelper

CentralSurfaces is an optional element in SystemUI so some extensions
may not include this. Therefore, it needs to be checked if it is present
before use.

Bug: 241105832
Test: atest CarActivityServiceTaskMonitorUnitTest --rerun-until-failure
20, atest com.android.systemui.navigationbar

Change-Id: I32f66562af699e16a0a5deb3937c002f9fa2ef09

packages/SystemUI/src/com/android/systemui/navigationbar/NavBarHelper.java

@@ -48,6 +48,7 @@ import android.view.accessibility.AccessibilityManager;
 
 import androidx.annotation.NonNull;
 
+import com.android.keyguard.KeyguardViewController;
 import com.android.systemui.Dumpable;
 import com.android.systemui.accessibility.AccessibilityButtonModeObserver;
 import com.android.systemui.accessibility.AccessibilityButtonTargetsObserver;
@@ -89,6 +90,7 @@ public final class NavBarHelper implements
     private final AccessibilityManager mAccessibilityManager;
     private final Lazy<AssistManager> mAssistManagerLazy;
     private final Lazy<Optional<CentralSurfaces>> mCentralSurfacesOptionalLazy;
+    private final KeyguardViewController mKeyguardViewController;
     private final UserTracker mUserTracker;
     private final SystemActions mSystemActions;
     private final AccessibilityButtonModeObserver mAccessibilityButtonModeObserver;
@@ -123,6 +125,7 @@ public final class NavBarHelper implements
             OverviewProxyService overviewProxyService,
             Lazy<AssistManager> assistManagerLazy,
             Lazy<Optional<CentralSurfaces>> centralSurfacesOptionalLazy,
+            KeyguardViewController keyguardViewController,
             NavigationModeController navigationModeController,
             UserTracker userTracker,
             DumpManager dumpManager) {
@@ -131,6 +134,7 @@ public final class NavBarHelper implements
         mAccessibilityManager = accessibilityManager;
         mAssistManagerLazy = assistManagerLazy;
         mCentralSurfacesOptionalLazy = centralSurfacesOptionalLazy;
+        mKeyguardViewController = keyguardViewController;
         mUserTracker = userTracker;
         mSystemActions = systemActions;
         accessibilityManager.addAccessibilityServicesStateChangeListener(this);
@@ -317,8 +321,12 @@ public final class NavBarHelper implements
      * {@link InputMethodService} and the keyguard states.
      */
     public boolean isImeShown(int vis) {
-        View shadeWindowView = mCentralSurfacesOptionalLazy.get().get().getNotificationShadeWindowView();
-        boolean isKeyguardShowing = mCentralSurfacesOptionalLazy.get().get().isKeyguardShowing();
+        View shadeWindowView = null;
+        if (mCentralSurfacesOptionalLazy.get().isPresent()) {
+            shadeWindowView =
+                    mCentralSurfacesOptionalLazy.get().get().getNotificationShadeWindowView();
+        }
+        boolean isKeyguardShowing = mKeyguardViewController.isShowing();
         boolean imeVisibleOnShade = shadeWindowView != null && shadeWindowView.isAttachedToWindow()
                 && shadeWindowView.getRootWindowInsets().isVisible(WindowInsets.Type.ime());
         return imeVisibleOnShade

packages/SystemUI/tests/src/com/android/systemui/navigationbar/NavBarHelperTest.java

@@ -39,6 +39,7 @@ import android.view.accessibility.AccessibilityManager;
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import com.android.keyguard.KeyguardViewController;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.accessibility.AccessibilityButtonModeObserver;
 import com.android.systemui.accessibility.AccessibilityButtonTargetsObserver;
@@ -112,7 +113,7 @@ public class NavBarHelperTest extends SysuiTestCase {
         mNavBarHelper = new NavBarHelper(mContext, mAccessibilityManager,
                 mAccessibilityButtonModeObserver, mAccessibilityButtonTargetObserver,
                 mSystemActions, mOverviewProxyService, mAssistManagerLazy,
-                () -> Optional.of(mock(CentralSurfaces.class)),
+                () -> Optional.of(mock(CentralSurfaces.class)), mock(KeyguardViewController.class),
                 mNavigationModeController, mUserTracker, mDumpManager);
 
     }

packages/SystemUI/tests/src/com/android/systemui/navigationbar/NavigationBarTest.java

@@ -72,6 +72,7 @@ import androidx.test.filters.SmallTest;
 
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.UiEventLogger;
+import com.android.keyguard.KeyguardViewController;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.SysuiTestableContext;
 import com.android.systemui.accessibility.AccessibilityButtonModeObserver;
@@ -193,6 +194,8 @@ public class NavigationBarTest extends SysuiTestCase {
     @Mock
     private CentralSurfaces mCentralSurfaces;
     @Mock
+    private KeyguardViewController mKeyguardViewController;
+    @Mock
     private UserContextProvider mUserContextProvider;
     @Mock
     private Resources mResources;
@@ -237,8 +240,8 @@ public class NavigationBarTest extends SysuiTestCase {
                     mock(AccessibilityButtonTargetsObserver.class),
                     mSystemActions, mOverviewProxyService,
                     () -> mock(AssistManager.class), () -> Optional.of(mCentralSurfaces),
-                    mock(NavigationModeController.class), mock(UserTracker.class),
-                    mock(DumpManager.class)));
+                    mKeyguardViewController, mock(NavigationModeController.class),
+                    mock(UserTracker.class), mock(DumpManager.class)));
             mNavigationBar = createNavBar(mContext);
             mExternalDisplayNavigationBar = createNavBar(mSysuiTestableContextExternal);
         });
@@ -377,7 +380,7 @@ public class NavigationBarTest extends SysuiTestCase {
 
         // Verify navbar didn't alter and showing back icon when the keyguard is showing without
         // requesting IME insets visible.
-        doReturn(true).when(mCentralSurfaces).isKeyguardShowing();
+        doReturn(true).when(mKeyguardViewController).isShowing();
         mNavigationBar.setImeWindowStatus(DEFAULT_DISPLAY, null, IME_VISIBLE,
                 BACK_DISPOSITION_DEFAULT, true);
         assertFalse((mNavigationBar.getNavigationIconHints() & NAVIGATION_HINT_BACK_ALT) != 0);