Make AmbientState injectable

1) Mark AmbientState as SysuiSingleton to allow access from
- PanelBar
- NotificationStackScrollLayout

2) Mark AmbientState constructor with @Inject
   for Dagger use when needed

3) Ensure that AmbientState params are injectable
- Context --- AmbientState is now global, and has access to application
  context; we can leave this unchanged (otherwise we mark it with
  @Named(VIEW_CONTEXT) to ask for the subcomponent view context)
- SectionProvider --- bind to NotificationSectionsManager in
  NotificationsModule, the closest module to AmbientState

4) Add AmbientState to constructors for NSSL and NPVC
- Have PanelBar update AmbientState directly (via PVC) instead of
  piping changes through layers of classes

Fixes: 177921542
Test: log to verify that shade open state updates correctly
Test: build sysui-studio with
       sysuiTestDebug variant and SystemUITests config, then run:

adb shell am instrument -w -e class com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayoutTest com.android.systemui.tests

Change-Id: I0a50d603b49c9f55f1af41084974aee59e9ce95b

packages/SystemUI/src/com/android/systemui/statusbar/notification/dagger/NotificationsModule.java

@@ -69,6 +69,8 @@ import com.android.systemui.statusbar.notification.row.ChannelEditorDialogContro
 import com.android.systemui.statusbar.notification.row.NotificationGutsManager;
 import com.android.systemui.statusbar.notification.row.OnUserInteractionCallback;
 import com.android.systemui.statusbar.notification.row.PriorityOnboardingDialogController;
+import com.android.systemui.statusbar.notification.stack.NotificationSectionsManager;
+import com.android.systemui.statusbar.notification.stack.StackScrollAlgorithm;
 import com.android.systemui.statusbar.phone.StatusBar;
 import com.android.systemui.statusbar.policy.HeadsUpManager;
 import com.android.systemui.util.leak.LeakDetector;
@@ -89,6 +91,10 @@ import dagger.Provides;
  */
 @Module(includes = { NotificationSectionHeadersModule.class })
 public interface NotificationsModule {
+    @Binds
+    StackScrollAlgorithm.SectionProvider bindSectionProvider(
+            NotificationSectionsManager impl);
+
     /** Provides an instance of {@link NotificationEntryManager} */
     @SysUISingleton
     @Provides

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/AmbientState.java

@@ -22,6 +22,7 @@ import android.content.Context;
 import android.util.MathUtils;
 
 import com.android.systemui.R;
+import com.android.systemui.dagger.SysUISingleton;
 import com.android.systemui.statusbar.NotificationShelf;
 import com.android.systemui.statusbar.StatusBarState;
 import com.android.systemui.statusbar.notification.collection.NotificationEntry;
@@ -30,9 +31,12 @@ import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow
 import com.android.systemui.statusbar.notification.row.ExpandableView;
 import com.android.systemui.statusbar.notification.stack.StackScrollAlgorithm.SectionProvider;
 
+import javax.inject.Inject;
+
 /**
  * A global state to track all input states for the algorithm.
  */
+@SysUISingleton
 public class AmbientState {
 
     private static final float MAX_PULSE_HEIGHT = 100000f;
@@ -83,6 +87,7 @@ public class AmbientState {
     /** Tracks the state from AlertingNotificationManager#hasNotifications() */
     private boolean mHasAlertEntries;
 
+    @Inject
     public AmbientState(
             Context context,
             @NonNull SectionProvider sectionProvider) {
@@ -98,7 +103,7 @@ public class AmbientState {
         mBaseZHeight = getBaseHeight(mZDistanceBetweenElements);
     }
 
-    void setIsShadeOpening(boolean isOpening) {
+    public void setIsShadeOpening(boolean isOpening) {
         mIsShadeOpening = isOpening;
     }
 

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java

@@ -491,7 +491,8 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
             NotificationSectionsManager notificationSectionsManager,
             GroupMembershipManager groupMembershipManager,
             GroupExpansionManager groupExpansionManager,
-            SysuiStatusBarStateController statusbarStateController
+            SysuiStatusBarStateController statusbarStateController,
+            AmbientState ambientState
     ) {
         super(context, attrs, 0, 0);
         Resources res = getResources();
@@ -500,7 +501,7 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
         mSectionsManager.initialize(this, LayoutInflater.from(context));
         mSections = mSectionsManager.createSectionsForBuckets();
 
-        mAmbientState = new AmbientState(context, mSectionsManager);
+        mAmbientState = ambientState;
         mBgColor = Utils.getColorAttr(mContext, android.R.attr.colorBackgroundFloating)
                 .getDefaultColor();
         int minHeight = res.getDimensionPixelSize(R.dimen.notification_min_height);
@@ -549,10 +550,6 @@ public class NotificationStackScrollLayout extends ViewGroup implements Dumpable
         }
     }
 
-    void setIsShadeOpening(boolean isOpening) {
-        mAmbientState.setIsShadeOpening(isOpening);
-    }
-
     void setSectionPadding(float margin) {
         mAmbientState.setSectionPadding(margin);
         requestChildrenUpdate();

packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutController.java

@@ -271,10 +271,6 @@ public class NotificationStackScrollLayoutController {
         }
     };
 
-    public void setIsShadeOpening(boolean isOpening) {
-        mView.setIsShadeOpening(isOpening);
-    }
-
     public void setSectionPadding(float padding) {
         mView.setSectionPadding(padding);
     }

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java

@@ -120,6 +120,7 @@ import com.android.systemui.statusbar.notification.collection.render.ShadeViewMa
 import com.android.systemui.statusbar.notification.row.ActivatableNotificationView;
 import com.android.systemui.statusbar.notification.row.ExpandableNotificationRow;
 import com.android.systemui.statusbar.notification.row.ExpandableView;
+import com.android.systemui.statusbar.notification.stack.AmbientState;
 import com.android.systemui.statusbar.notification.stack.AnimationProperties;
 import com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayout;
 import com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayoutController;
@@ -552,10 +553,12 @@ public class NotificationPanelViewController extends PanelViewController {
             AuthController authController,
             QSDetailDisplayer qsDetailDisplayer,
             ScrimController scrimController,
-            MediaDataManager mediaDataManager) {
+            MediaDataManager mediaDataManager,
+            AmbientState ambientState) {
         super(view, falsingManager, dozeLog, keyguardStateController,
                 (SysuiStatusBarStateController) statusBarStateController, vibratorHelper,
-                latencyTracker, flingAnimationUtilsBuilder.get(), statusBarTouchableRegionManager);
+                latencyTracker, flingAnimationUtilsBuilder.get(), statusBarTouchableRegionManager,
+                ambientState);
         mView = view;
         mMetricsLogger = metricsLogger;
         mActivityManager = activityManager;
@@ -2410,11 +2413,6 @@ public class NotificationPanelViewController extends PanelViewController {
         setListening(true);
     }
 
-    @Override
-    protected void setIsShadeOpening(boolean isOpening) {
-        mNotificationStackScrollLayoutController.setIsShadeOpening(isOpening);
-    }
-
     @Override
     public void setSectionPadding(float padding) {
         if (padding == mSectionPadding) {

packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelBar.java

@@ -53,7 +53,7 @@ public abstract class PanelBar extends FrameLayout {
         if (DEBUG) LOG("go state: %d -> %d", mState, state);
         mState = state;
         if (mPanel != null) {
-            mPanel.setIsShadeOpening(state == STATE_OPENING);
+            mPanel.getAmbientState().setIsShadeOpening(state == STATE_OPENING);
         }
     }
 

packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelViewController.java

@@ -27,6 +27,7 @@ import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
+import android.annotation.Nullable;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.os.SystemClock;
@@ -54,6 +55,7 @@ import com.android.systemui.plugins.FalsingManager;
 import com.android.systemui.statusbar.StatusBarState;
 import com.android.systemui.statusbar.SysuiStatusBarStateController;
 import com.android.systemui.statusbar.VibratorHelper;
+import com.android.systemui.statusbar.notification.stack.AmbientState;
 import com.android.systemui.statusbar.phone.LockscreenGestureLogger.LockscreenUiEvent;
 import com.android.systemui.statusbar.policy.KeyguardStateController;
 import com.android.wm.shell.animation.FlingAnimationUtils;
@@ -145,6 +147,9 @@ public abstract class PanelViewController {
     private float mInitialTouchX;
     private boolean mTouchDisabled;
 
+    // AmbientState will never be null since it provides an @Inject constructor for Dagger to call.
+    private AmbientState mAmbientState;
+
     /**
      * Whether or not the PanelView can be expanded or collapsed with a drag.
      */
@@ -223,13 +228,19 @@ public abstract class PanelViewController {
         mJustPeeked = true;
     }
 
+    protected AmbientState getAmbientState() {
+        return mAmbientState;
+    }
+
     public PanelViewController(PanelView view,
             FalsingManager falsingManager, DozeLog dozeLog,
             KeyguardStateController keyguardStateController,
             SysuiStatusBarStateController statusBarStateController, VibratorHelper vibratorHelper,
             LatencyTracker latencyTracker,
             FlingAnimationUtils.Builder flingAnimationUtilsBuilder,
-            StatusBarTouchableRegionManager statusBarTouchableRegionManager) {
+            StatusBarTouchableRegionManager statusBarTouchableRegionManager,
+            AmbientState ambientState) {
+        mAmbientState = ambientState;
         mView = view;
         mView.addOnAttachStateChangeListener(new View.OnAttachStateChangeListener() {
             @Override
@@ -776,8 +787,6 @@ public abstract class PanelViewController {
      */
     protected abstract boolean isTrackingBlocked();
 
-    protected abstract void setIsShadeOpening(boolean isShadeOpening);
-
     protected abstract void setSectionPadding(float padding);
 
     protected abstract void setOverExpansion(float overExpansion, boolean isPixels);

packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayoutTest.java

@@ -83,6 +83,7 @@ public class NotificationStackScrollLayoutTest extends SysuiTestCase {
 
     private NotificationStackScrollLayout mStackScroller;  // Normally test this
     private NotificationStackScrollLayout mStackScrollerInternal;  // See explanation below
+    private AmbientState mAmbientState;
 
     @Rule public MockitoRule mockito = MockitoJUnit.rule();
     @Mock private StatusBar mBar;
@@ -123,6 +124,9 @@ public class NotificationStackScrollLayoutTest extends SysuiTestCase {
                 });
         when(mRemoteInputManager.getController()).thenReturn(mRemoteInputController);
 
+        // Interact with real instance of AmbientState.
+        mAmbientState = new AmbientState(mContext, mNotificationSectionsManager);
+
         // The actual class under test.  You may need to work with this class directly when
         // testing anonymous class members of mStackScroller, like mMenuEventListener,
         // which refer to members of NotificationStackScrollLayout. The spy
@@ -134,7 +138,8 @@ public class NotificationStackScrollLayoutTest extends SysuiTestCase {
                 mNotificationSectionsManager,
                 mGroupMembershipManger,
                 mGroupExpansionManager,
-                mStatusBarStateController
+                mStatusBarStateController,
+                mAmbientState
         );
         mStackScrollerInternal.initView(getContext(), mKeyguardBypassEnabledProvider,
                 mNotificationSwipeHelper);

packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java

@@ -80,6 +80,7 @@ import com.android.systemui.statusbar.notification.DynamicPrivacyController;
 import com.android.systemui.statusbar.notification.NotificationEntryManager;
 import com.android.systemui.statusbar.notification.NotificationWakeUpCoordinator;
 import com.android.systemui.statusbar.notification.collection.legacy.NotificationGroupManagerLegacy;
+import com.android.systemui.statusbar.notification.stack.AmbientState;
 import com.android.systemui.statusbar.notification.stack.NotificationRoundnessManager;
 import com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayout;
 import com.android.systemui.statusbar.notification.stack.NotificationStackScrollLayoutController;
@@ -202,7 +203,8 @@ public class NotificationPanelViewTest extends SysuiTestCase {
     private ScrimController mScrimController;
     @Mock
     private MediaDataManager mMediaDataManager;
-
+    @Mock
+    private AmbientState mAmbientState;
     private NotificationPanelViewController mNotificationPanelViewController;
     private View.AccessibilityDelegate mAccessibiltyDelegate;
 
@@ -282,7 +284,8 @@ public class NotificationPanelViewTest extends SysuiTestCase {
                 mAuthController,
                 new QSDetailDisplayer(),
                 mScrimController,
-                mMediaDataManager);
+                mMediaDataManager,
+                mAmbientState);
         mNotificationPanelViewController.initDependencies(
                 mStatusBar,
                 mNotificationShelfController);