Announce SideFPS indicator when it's shown

We intentionally don't want to focus
on the UI element; we only want to inform the
user of why it's showing (to encourage the user
to use side fps to authenticate).

Bug: 344763543
Test: atest SideFpsOverlayViewBinderTest
Flag: EXEMPTY bugfix

Change-Id: I9dce65a20cb7cdcb39f888b8b29c3a48c6d5f7a7
diff --git a/packages/SystemUI/res-keyguard/layout/alternate_bouncer.xml b/packages/SystemUI/res-keyguard/layout/alternate_bouncer.xml
index cf9ca15..c9850f2 100644
--- a/packages/SystemUI/res-keyguard/layout/alternate_bouncer.xml
+++ b/packages/SystemUI/res-keyguard/layout/alternate_bouncer.xml
@@ -19,8 +19,6 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:sysui="http://schemas.android.com/apk/res-auto"
     android:id="@+id/alternate_bouncer"
-    android:focusable="true"
-    android:clickable="true"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
diff --git a/packages/SystemUI/res/layout/sidefps_view.xml b/packages/SystemUI/res/layout/sidefps_view.xml
index fc4bf8a..e80ed26 100644
--- a/packages/SystemUI/res/layout/sidefps_view.xml
+++ b/packages/SystemUI/res/layout/sidefps_view.xml
@@ -22,5 +22,4 @@
     android:layout_height="wrap_content"
     app:lottie_autoPlay="true"
     app:lottie_loop="true"
-    app:lottie_rawRes="@raw/sfps_pulse"
-    android:importantForAccessibility="no"/>
\ No newline at end of file
+    app:lottie_rawRes="@raw/sfps_pulse"/>
\ No newline at end of file
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/SideFpsOverlayViewBinder.kt b/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/SideFpsOverlayViewBinder.kt
index 9cc4650..9578da4 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/SideFpsOverlayViewBinder.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/SideFpsOverlayViewBinder.kt
@@ -139,6 +139,11 @@
         overlayView!!.visibility = View.INVISIBLE
         Log.d(TAG, "show(): adding overlayView $overlayView")
         windowManager.get().addView(overlayView, overlayViewModel.defaultOverlayViewParams)
+        overlayView!!.announceForAccessibility(
+            applicationContext.resources.getString(
+                R.string.accessibility_side_fingerprint_indicator_label
+            )
+        )
     }
 
     /** Hide the side fingerprint sensor indicator */
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/AlternateBouncerViewBinder.kt b/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/AlternateBouncerViewBinder.kt
index 6550937..f8063c9 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/AlternateBouncerViewBinder.kt
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/ui/binder/AlternateBouncerViewBinder.kt
@@ -86,7 +86,10 @@
                     privateFlags =
                         WindowManager.LayoutParams.PRIVATE_FLAG_TRUSTED_OVERLAY or
                             WindowManager.LayoutParams.PRIVATE_FLAG_NO_MOVE_ANIMATION
+                    // Avoid announcing window title.
+                    accessibilityTitle = " "
                 }
+
     private var alternateBouncerView: ConstraintLayout? = null
 
     override fun start() {
@@ -304,6 +307,7 @@
             }
         }
     }
+
     companion object {
         private const val TAG = "AlternateBouncerViewBinder"
         private const val swipeTag = "AlternateBouncer-SWIPE"
diff --git a/packages/SystemUI/tests/src/com/android/systemui/biometrics/ui/binder/SideFpsOverlayViewBinderTest.kt b/packages/SystemUI/tests/src/com/android/systemui/biometrics/ui/binder/SideFpsOverlayViewBinderTest.kt
index 4238254..7fa165c 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/biometrics/ui/binder/SideFpsOverlayViewBinderTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/biometrics/ui/binder/SideFpsOverlayViewBinderTest.kt
@@ -73,6 +73,7 @@
 import org.mockito.Mockito.`when`
 import org.mockito.junit.MockitoJUnit
 import org.mockito.junit.MockitoRule
+import org.mockito.kotlin.argumentCaptor
 
 @OptIn(ExperimentalCoroutinesApi::class)
 @SmallTest
@@ -218,6 +219,13 @@
 
             verify(kosmos.windowManager).addView(any(), any())
 
+            var viewCaptor = argumentCaptor<View>()
+            verify(kosmos.windowManager).addView(viewCaptor.capture(), any())
+            verify(viewCaptor.firstValue)
+                .announceForAccessibility(
+                    mContext.getText(R.string.accessibility_side_fingerprint_indicator_label)
+                )
+
             // Hide alternate bouncer
             kosmos.keyguardBouncerRepository.setAlternateVisible(false)
             runCurrent()