Merge "Suppressing FUL after user switch (fix b/7316467)" into jb-mr1-dev

Author: Brian Colonna

policy/src/com/android/internal/policy/impl/keyguard/KeyguardHostView.java

@@ -258,6 +258,9 @@ public void userActivity(long timeout) {
         }
 
         public void dismiss(boolean authenticated) {
+            // If the biometric unlock was suppressed due to a user switch, it can now be safely
+            // unsuppressed because the user has left the unlock screen.
+            KeyguardUpdateMonitor.getInstance(mContext).clearBiometricUnlockUserSwitched();
             showNextSecurityScreenOrFinish(authenticated);
         }
 

policy/src/com/android/internal/policy/impl/keyguard/KeyguardSecurityModel.java

@@ -65,7 +65,8 @@ private boolean isBiometricUnlockSuppressed() {
         KeyguardUpdateMonitor monitor = KeyguardUpdateMonitor.getInstance(mContext);
         final boolean backupIsTimedOut = monitor.getFailedUnlockAttempts() >=
                 LockPatternUtils.FAILED_ATTEMPTS_BEFORE_TIMEOUT;
-        return monitor.getMaxBiometricUnlockAttemptsReached() || backupIsTimedOut;
+        return monitor.getMaxBiometricUnlockAttemptsReached() || backupIsTimedOut
+                || monitor.didBiometricUnlockUserSwitch();
     }
 
     SecurityMode getSecurityMode() {

policy/src/com/android/internal/policy/impl/keyguard/KeyguardUpdateMonitor.java

@@ -102,6 +102,8 @@ public class KeyguardUpdateMonitor {
     private int mFailedAttempts = 0;
     private int mFailedBiometricUnlockAttempts = 0;
 
+    private boolean mBiometricUnlockUserSwitched;
+
     private boolean mClockVisible;
 
     private final ArrayList<WeakReference<KeyguardUpdateMonitorCallback>>
@@ -404,6 +406,7 @@ protected void handleUserSwitched(int userId, IRemoteCallback reply) {
                 cb.onUserSwitched(userId);
             }
         }
+        mBiometricUnlockUserSwitched = true;
         try {
             reply.sendResult(null);
         } catch (RemoteException e) {
@@ -721,6 +724,14 @@ public boolean getMaxBiometricUnlockAttemptsReached() {
         return mFailedBiometricUnlockAttempts >= FAILED_BIOMETRIC_UNLOCK_ATTEMPTS_BEFORE_BACKUP;
     }
 
+    public boolean didBiometricUnlockUserSwitch() {
+        return mBiometricUnlockUserSwitched;
+    }
+
+    public void clearBiometricUnlockUserSwitched() {
+        mBiometricUnlockUserSwitched = false;
+    }
+
     public boolean isSimLocked() {
         return isSimLocked(mSimState);
     }