A11y Scroll Forward/Up Now Unlock or Show Bouncer

Fixes: 154875595
Test: atest SystemUITests && manual
Change-Id: Ic5060fd978d5de8a2a853ba1a32ce377a3c8d996

2 files changed, 75 insertions, 2 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
index 35c33aec8d0f..999e636b4bae 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
@@ -38,6 +38,7 @@ import android.graphics.Rect;
 import android.graphics.Region;
 import android.graphics.drawable.Drawable;
 import android.hardware.biometrics.BiometricSourceType;
+import android.os.Bundle;
 import android.os.PowerManager;
 import android.os.SystemClock;
 import android.util.Log;
@@ -51,6 +52,7 @@ import android.view.ViewPropertyAnimator;
 import android.view.ViewTreeObserver;
 import android.view.WindowInsets;
 import android.view.accessibility.AccessibilityManager;
+import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.FrameLayout;
 import android.widget.TextView;
 
@@ -244,6 +246,7 @@ public class NotificationPanelViewController extends PanelViewController {
     private final KeyguardUpdateMonitor mUpdateMonitor;
     private final ConversationNotificationManager mConversationNotificationManager;
     private final MediaHierarchyManager mMediaHierarchyManager;
+    private final StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
 
     private KeyguardAffordanceHelper mAffordanceHelper;
     private KeyguardUserSwitcher mKeyguardUserSwitcher;
@@ -439,6 +442,26 @@ public class NotificationPanelViewController extends PanelViewController {
 
     private int mOldLayoutDirection;
 
+    private View.AccessibilityDelegate mAccessibilityDelegate = new View.AccessibilityDelegate() {
+        @Override
+        public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
+            super.onInitializeAccessibilityNodeInfo(host, info);
+            info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
+            info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_UP);
+        }
+
+        @Override
+        public boolean performAccessibilityAction(View host, int action, Bundle args) {
+            if (action == AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD.getId()
+                    || action
+                    == AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_UP.getId()) {
+                mStatusBarKeyguardViewManager.showBouncer(true);
+                return true;
+            }
+            return super.performAccessibilityAction(host, action, args);
+        }
+    };
+
     @Inject
     public NotificationPanelViewController(NotificationPanelView view,
             InjectionInflationController injectionInflationController,
@@ -459,7 +482,8 @@ public class NotificationPanelViewController extends PanelViewController {
             FlingAnimationUtils.Builder flingAnimationUtilsBuilder,
             StatusBarTouchableRegionManager statusBarTouchableRegionManager,
             ConversationNotificationManager conversationNotificationManager,
-            MediaHierarchyManager mediaHierarchyManager) {
+            MediaHierarchyManager mediaHierarchyManager,
+            StatusBarKeyguardViewManager statusBarKeyguardViewManager) {
         super(view, falsingManager, dozeLog, keyguardStateController,
                 (SysuiStatusBarStateController) statusBarStateController, vibratorHelper,
                 latencyTracker, flingAnimationUtilsBuilder, statusBarTouchableRegionManager);
@@ -470,6 +494,7 @@ public class NotificationPanelViewController extends PanelViewController {
         mConfigurationController = configurationController;
         mFlingAnimationUtilsBuilder = flingAnimationUtilsBuilder;
         mMediaHierarchyManager = mediaHierarchyManager;
+        mStatusBarKeyguardViewManager = statusBarKeyguardViewManager;
         mView.setWillNotDraw(!DEBUG);
         mInjectionInflationController = injectionInflationController;
         mFalsingManager = falsingManager;
@@ -583,6 +608,8 @@ public class NotificationPanelViewController extends PanelViewController {
                 mOldLayoutDirection = layoutDirection;
             }
         });
+
+        mView.setAccessibilityDelegate(mAccessibilityDelegate);
     }
 
     @Override
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
index b5663d5dd19e..c2d218140803 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NotificationPanelViewTest.java
@@ -43,6 +43,7 @@ import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityManager;
+import android.view.accessibility.AccessibilityNodeInfo;
 
 import androidx.test.filters.SmallTest;
 
@@ -80,11 +81,13 @@ import com.android.systemui.util.InjectionInflationController;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
 import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.mockito.stubbing.Answer;
 
+import java.util.List;
 import java.util.function.Consumer;
 
 @SmallTest
@@ -176,9 +179,12 @@ public class NotificationPanelViewTest extends SysuiTestCase {
     private MediaHierarchyManager mMediaHiearchyManager;
     @Mock
     private ConversationNotificationManager mConversationNotificationManager;
+    @Mock
+    private StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
     private FlingAnimationUtils.Builder mFlingAnimationUtilsBuilder;
 
     private NotificationPanelViewController mNotificationPanelViewController;
+    private View.AccessibilityDelegate mAccessibiltyDelegate;
 
     @Before
     public void setup() {
@@ -231,11 +237,18 @@ public class NotificationPanelViewTest extends SysuiTestCase {
                 mLatencyTracker, mPowerManager, mAccessibilityManager, 0, mUpdateMonitor,
                 mMetricsLogger, mActivityManager, mZenModeController, mConfigurationController,
                 mFlingAnimationUtilsBuilder, mStatusBarTouchableRegionManager,
-                mConversationNotificationManager, mMediaHiearchyManager);
+                mConversationNotificationManager, mMediaHiearchyManager,
+                mStatusBarKeyguardViewManager);
         mNotificationPanelViewController.initDependencies(mStatusBar, mGroupManager,
                 mNotificationShelf, mNotificationAreaController, mScrimController);
         mNotificationPanelViewController.setHeadsUpManager(mHeadsUpManager);
         mNotificationPanelViewController.setBar(mPanelBar);
+
+        ArgumentCaptor<View.AccessibilityDelegate> accessibilityDelegateArgumentCaptor =
+                ArgumentCaptor.forClass(View.AccessibilityDelegate.class);
+        verify(mView)
+                .setAccessibilityDelegate(accessibilityDelegateArgumentCaptor.capture());
+        mAccessibiltyDelegate = accessibilityDelegateArgumentCaptor.getValue();
     }
 
     @Test
@@ -305,6 +318,39 @@ public class NotificationPanelViewTest extends SysuiTestCase {
         verify(mKeyguardStatusBar, never()).setVisibility(View.VISIBLE);
     }
 
+    @Test
+    public void testA11y_initializeNode() {
+        AccessibilityNodeInfo nodeInfo = new AccessibilityNodeInfo();
+        mAccessibiltyDelegate.onInitializeAccessibilityNodeInfo(mView, nodeInfo);
+
+        List<AccessibilityNodeInfo.AccessibilityAction> actionList = nodeInfo.getActionList();
+        assertThat(actionList).containsAllIn(
+                new AccessibilityNodeInfo.AccessibilityAction[] {
+                        AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD,
+                        AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_UP}
+        );
+    }
+
+    @Test
+    public void testA11y_scrollForward() {
+        mAccessibiltyDelegate.performAccessibilityAction(
+                mView,
+                AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD.getId(),
+                null);
+
+        verify(mStatusBarKeyguardViewManager).showBouncer(true);
+    }
+
+    @Test
+    public void testA11y_scrollUp() {
+        mAccessibiltyDelegate.performAccessibilityAction(
+                mView,
+                AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_UP.getId(),
+                null);
+
+        verify(mStatusBarKeyguardViewManager).showBouncer(true);
+    }
+
     private void onTouchEvent(MotionEvent ev) {
         mTouchHandler.onTouch(mView, ev);
     }