Check home controls availability on overlay active.

The callback that home controls observes is only triggered when the
controls services update, which is one of the conditions for whether
home controls is available. When the user adds the first or removes the
last device control, the hasFavorites condition changes but does not
trigger an update.

So to address that, home controls should check availability when the
dream overlay becomes active, parallel to which on the lock screen.

Test: DreamHomeControlsComplicationTest
Test: reboot device with no favorited device controls > add favorite
device controls > start dreaming > see home controls chip
Test: similar to above but start with favorites and remove last
Bug: 257348199
Fix: 257348199

Change-Id: I537a240963e0523c8fc40008dee961c7a434094a

packages/SystemUI/src/com/android/systemui/dreams/complication/DreamHomeControlsComplication.java

@@ -33,6 +33,7 @@ import com.android.internal.logging.UiEvent;
 import com.android.internal.logging.UiEventLogger;
 import com.android.systemui.CoreStartable;
 import com.android.systemui.animation.ActivityLaunchAnimator;
+import com.android.systemui.controls.ControlsServiceInfo;
 import com.android.systemui.controls.dagger.ControlsComponent;
 import com.android.systemui.controls.management.ControlsListingController;
 import com.android.systemui.controls.ui.ControlsActivity;
@@ -42,6 +43,8 @@ import com.android.systemui.dreams.complication.dagger.DreamHomeControlsComplica
 import com.android.systemui.plugins.ActivityStarter;
 import com.android.systemui.util.ViewController;
 
+import java.util.List;
+
 import javax.inject.Inject;
 import javax.inject.Named;
 
@@ -76,16 +79,25 @@ public class DreamHomeControlsComplication implements Complication {
         private final DreamOverlayStateController mDreamOverlayStateController;
         private final ControlsComponent mControlsComponent;
 
-        private boolean mControlServicesAvailable = false;
+        private boolean mOverlayActive = false;
 
         // Callback for when the home controls service availability changes.
         private final ControlsListingController.ControlsListingCallback mControlsCallback =
-                serviceInfos -> {
-                    boolean available = !serviceInfos.isEmpty();
+                services -> updateHomeControlsComplication();
 
-                    if (available != mControlServicesAvailable) {
-                        mControlServicesAvailable = available;
-                        updateComplicationAvailability();
+        private final DreamOverlayStateController.Callback mOverlayStateCallback =
+                new DreamOverlayStateController.Callback() {
+                    @Override
+                    public void onStateChanged() {
+                        if (mOverlayActive == mDreamOverlayStateController.isOverlayActive()) {
+                            return;
+                        }
+
+                        mOverlayActive = !mOverlayActive;
+
+                        if (mOverlayActive) {
+                            updateHomeControlsComplication();
+                        }
                     }
                 };
 
@@ -102,18 +114,29 @@ public class DreamHomeControlsComplication implements Complication {
         public void start() {
             mControlsComponent.getControlsListingController().ifPresent(
                     c -> c.addCallback(mControlsCallback));
+            mDreamOverlayStateController.addCallback(mOverlayStateCallback);
         }
 
-        private void updateComplicationAvailability() {
+        private void updateHomeControlsComplication() {
+            mControlsComponent.getControlsListingController().ifPresent(c -> {
+                if (isHomeControlsAvailable(c.getCurrentServices())) {
+                    mDreamOverlayStateController.addComplication(mComplication);
+                } else {
+                    mDreamOverlayStateController.removeComplication(mComplication);
+                }
+            });
+        }
+
+        private boolean isHomeControlsAvailable(List<ControlsServiceInfo> controlsServices) {
+            if (controlsServices.isEmpty()) {
+                return false;
+            }
+
             final boolean hasFavorites = mControlsComponent.getControlsController()
                     .map(c -> !c.getFavorites().isEmpty())
                     .orElse(false);
-            if (!hasFavorites || !mControlServicesAvailable
-                    || mControlsComponent.getVisibility() == UNAVAILABLE) {
-                mDreamOverlayStateController.removeComplication(mComplication);
-            } else {
-                mDreamOverlayStateController.addComplication(mComplication);
-            }
+            final ControlsComponent.Visibility visibility = mControlsComponent.getVisibility();
+            return hasFavorites && visibility != UNAVAILABLE;
         }
     }
 

packages/SystemUI/tests/src/com/android/systemui/dreams/complication/DreamHomeControlsComplicationTest.java

@@ -90,7 +90,10 @@ public class DreamHomeControlsComplicationTest extends SysuiTestCase {
     private ActivityStarter mActivityStarter;
 
     @Mock
-    UiEventLogger mUiEventLogger;
+    private UiEventLogger mUiEventLogger;
+
+    @Captor
+    private ArgumentCaptor<DreamOverlayStateController.Callback> mStateCallbackCaptor;
 
     @Before
     public void setup() {
@@ -164,6 +167,29 @@ public class DreamHomeControlsComplicationTest extends SysuiTestCase {
         verify(mDreamOverlayStateController).addComplication(mComplication);
     }
 
+    @Test
+    public void complicationAvailability_checkAvailabilityWhenDreamOverlayBecomesActive() {
+        final DreamHomeControlsComplication.Registrant registrant =
+                new DreamHomeControlsComplication.Registrant(mComplication,
+                        mDreamOverlayStateController, mControlsComponent);
+        registrant.start();
+
+        setServiceAvailable(true);
+        setHaveFavorites(false);
+
+        // Complication not available on start.
+        verify(mDreamOverlayStateController, never()).addComplication(mComplication);
+
+        // Favorite controls added, complication should be available now.
+        setHaveFavorites(true);
+
+        // Dream overlay becomes active.
+        setDreamOverlayActive(true);
+
+        // Verify complication is added.
+        verify(mDreamOverlayStateController).addComplication(mComplication);
+    }
+
     /**
      * Ensures clicking home controls chip logs UiEvent.
      */
@@ -196,10 +222,17 @@ public class DreamHomeControlsComplicationTest extends SysuiTestCase {
 
     private void setServiceAvailable(boolean value) {
         final List<ControlsServiceInfo> serviceInfos = mock(List.class);
+        when(mControlsListingController.getCurrentServices()).thenReturn(serviceInfos);
         when(serviceInfos.isEmpty()).thenReturn(!value);
         triggerControlsListingCallback(serviceInfos);
     }
 
+    private void setDreamOverlayActive(boolean value) {
+        when(mDreamOverlayStateController.isOverlayActive()).thenReturn(value);
+        verify(mDreamOverlayStateController).addCallback(mStateCallbackCaptor.capture());
+        mStateCallbackCaptor.getValue().onStateChanged();
+    }
+
     private void triggerControlsListingCallback(List<ControlsServiceInfo> serviceInfos) {
         verify(mControlsListingController).addCallback(mCallbackCaptor.capture());
         mCallbackCaptor.getValue().onServicesUpdated(serviceInfos);