Send accessibility event when bouncer is shown

Bug: 18996476
Change-Id: I0e402aa198263807e3013c7fb151f28d049ea51a

3 files changed, 22 insertions, 1 deletions

diff --git a/packages/Keyguard/res/layout/keyguard_simple_host_view.xml b/packages/Keyguard/res/layout/keyguard_simple_host_view.xml
index 28ce265..63e55d5 100644
--- a/packages/Keyguard/res/layout/keyguard_simple_host_view.xml
+++ b/packages/Keyguard/res/layout/keyguard_simple_host_view.xml
@@ -26,7 +26,9 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:clipChildren="false"
-    android:clipToPadding="false">
+    android:clipToPadding="false"
+    android:importantForAccessibility="yes"> <!-- Needed because TYPE_WINDOW_STATE_CHANGED is sent
+                                                  from this view when bouncer is shown -->
 
     <com.android.keyguard.KeyguardSecurityContainer
         android:id="@+id/keyguard_security_container"
diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java b/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
index faecaed..559b112 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
@@ -121,6 +121,14 @@ public class KeyguardSecurityContainer extends FrameLayout implements KeyguardSe
         }
     }
 
+    public CharSequence getCurrentSecurityModeContentDescription() {
+        View v = (View) getSecurityView(mCurrentSecuritySelection);
+        if (v != null) {
+            return v.getContentDescription();
+        }
+        return "";
+    }
+
     private KeyguardSecurityView getSecurityView(SecurityMode securityMode) {
         final int securityViewIdForMode = getSecurityViewIdForMode(securityMode);
         KeyguardSecurityView view = null;
diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardViewBase.java b/packages/Keyguard/src/com/android/keyguard/KeyguardViewBase.java
index e1e1cfc..fc17909 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardViewBase.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardViewBase.java
@@ -38,6 +38,7 @@ import android.util.Slog;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.accessibility.AccessibilityEvent;
 import android.widget.FrameLayout;
 
 import com.android.internal.widget.LockPatternUtils;
@@ -151,6 +152,16 @@ public abstract class KeyguardViewBase extends FrameLayout implements SecurityCa
         mSecurityContainer.announceCurrentSecurityMethod();
     }
 
+    @Override
+    public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
+        if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED) {
+            event.getText().add(mSecurityContainer.getCurrentSecurityModeContentDescription());
+            return true;
+        } else {
+            return super.dispatchPopulateAccessibilityEvent(event);
+        }
+    }
+
     protected KeyguardSecurityContainer getSecurityContainer() {
         return mSecurityContainer;
     }