Add a private API to get notified about lockout resets

SystemUI uses it to start authentication again after lockout reset
expired.

Bug: 22846755
Change-Id: I90a987c6aa4ac52cc7e7aff1bce262d1db3f12ee

1 files changed, 16 insertions, 0 deletions

diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java b/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
index fc6117f..cfc232c 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
@@ -29,6 +29,7 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.database.ContentObserver;
 import android.graphics.Bitmap;
+import android.hardware.fingerprint.Fingerprint;
 import android.hardware.fingerprint.FingerprintManager;
 import android.hardware.fingerprint.FingerprintManager.AuthenticationCallback;
 import android.hardware.fingerprint.FingerprintManager.AuthenticationResult;
@@ -472,6 +473,10 @@ public class KeyguardUpdateMonitor implements TrustManager.TrustListener {
         }
     }
 
+    private void handleFingerprintLockoutReset() {
+        updateFingerprintListeningState();
+    }
+
     private void setFingerprintRunningState(int fingerprintRunningState) {
         boolean wasRunning = mFingerprintRunningState == FINGERPRINT_STATE_RUNNING;
         boolean isRunning = fingerprintRunningState == FINGERPRINT_STATE_RUNNING;
@@ -681,6 +686,14 @@ public class KeyguardUpdateMonitor implements TrustManager.TrustListener {
         }
     };
 
+    private final FingerprintManager.LockoutResetCallback mLockoutResetCallback
+            = new FingerprintManager.LockoutResetCallback() {
+        @Override
+        public void onLockoutReset() {
+            handleFingerprintLockoutReset();
+        }
+    };
+
     private FingerprintManager.AuthenticationCallback mAuthenticationCallback
             = new AuthenticationCallback() {
 
@@ -1003,6 +1016,9 @@ public class KeyguardUpdateMonitor implements TrustManager.TrustListener {
 
         mFpm = (FingerprintManager) context.getSystemService(Context.FINGERPRINT_SERVICE);
         updateFingerprintListeningState();
+        if (mFpm != null) {
+            mFpm.addLockoutResetCallback(mLockoutResetCallback);
+        }
     }
 
     private void updateFingerprintListeningState() {