Adding a flag for if biometric weak has ever been used

This flag will be used to show a tutorial screen first time it is used.
The flag is set to true once facelock has been set (via the savePassword or
savePattern when in fallback mode)

Change-Id: I43e3f876810fd32d3d5a5a285201e8054c4b3098

1 files changed, 14 insertions, 0 deletions

diff --git a/core/java/com/android/internal/widget/LockPatternUtils.java b/core/java/com/android/internal/widget/LockPatternUtils.java
index 4d1276c54368..aa46ea23afeb 100644
--- a/core/java/com/android/internal/widget/LockPatternUtils.java
+++ b/core/java/com/android/internal/widget/LockPatternUtils.java
@@ -119,6 +119,8 @@ public class LockPatternUtils {
     private final static String LOCKSCREEN_OPTIONS = "lockscreen.options";
     public final static String LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK
             = "lockscreen.biometric_weak_fallback";
+    public final static String BIOMETRIC_WEAK_EVER_CHOSEN_KEY
+            = "lockscreen.biometricweakeverchosen";
 
     private final static String PASSWORD_HISTORY_KEY = "lockscreen.passwordhistory";
 
@@ -341,6 +343,16 @@ public class LockPatternUtils {
     }
 
     /**
+     * Return true if the user has ever chosen biometric weak.  This is true even if biometric
+     * weak is not current set.
+     *
+     * @return True if the user has ever chosen biometric weak.
+     */
+    public boolean isBiometricWeakEverChosen() {
+        return getBoolean(BIOMETRIC_WEAK_EVER_CHOSEN_KEY);
+    }
+
+    /**
      * Used by device policy manager to validate the current password
      * information it has.
      */
@@ -479,6 +491,7 @@ public class LockPatternUtils {
                     setLong(PASSWORD_TYPE_KEY, DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK);
                     setLong(PASSWORD_TYPE_ALTERNATE_KEY,
                             DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
+                    setBoolean(BIOMETRIC_WEAK_EVER_CHOSEN_KEY, true);
                     moveTempGallery();
                 }
                 dpm.setActivePasswordState(DevicePolicyManager.PASSWORD_QUALITY_SOMETHING, pattern
@@ -596,6 +609,7 @@ public class LockPatternUtils {
                 } else {
                     setLong(PASSWORD_TYPE_KEY, DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK);
                     setLong(PASSWORD_TYPE_ALTERNATE_KEY, Math.max(quality, computedQuality));
+                    setBoolean(BIOMETRIC_WEAK_EVER_CHOSEN_KEY, true);
                     moveTempGallery();
                 }
                 if (computedQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {