[Fingerprint] Change message in encryption

Change the message for encryption interstitial when enrollin
fingerprint, to make it clear that fingerprint unlock is still used,
just that the backup unlock PIN / password / pattern will be needed
to start the device.

Bug: 22559146
Change-Id: Ia134e0d9b118151833a9118ff44667dcc9122185

res/values/strings.xml

@@ -6389,6 +6389,13 @@
    \n\nThis helps protect data on lost or stolen devices.
    </string>
 
+    <!-- Message shown on encryption interstitial to ask the user whether or not they want to use a PIN to encrypt the device while setting up fingerprint unlock. [CHAR LIMIT=NONE] -->
+    <string name="encryption_interstitial_message_pin_for_fingerprint">In addition to using your fingerprint to unlock your device, you can further protect this device by requiring your PIN before it starts up. Until the device starts up, it can\u2019t receive calls, messages, or notifications, including alarms.\n\nThis helps protect data on lost or stolen devices.</string>
+    <!-- Message shown on encryption interstitial to ask the user whether or not they want to use a pattern to encrypt the device while setting up fingerprint unlock. [CHAR LIMIT=NONE] -->
+    <string name="encryption_interstitial_message_pattern_for_fingerprint">In addition to using your fingerprint to unlock your device, you can further protect this device by requiring your pattern before it starts up. Until the device starts up, it can\u2019t receive calls, messages, or notifications, including alarms.\n\nThis helps protect data on lost or stolen devices.</string>
+    <!-- Message shown on encryption interstitial to ask the user whether or not they want to use a password to encrypt the device while setting up fingerprint unlock. [CHAR LIMIT=NONE] -->
+    <string name="encryption_interstitial_message_password_for_fingerprint">In addition to using your fingerprint to unlock your device, you can further protect this device by requiring your password before it starts up. Until the device starts up, it can\u2019t receive calls, messages, or notifications, including alarms.\n\nThis helps protect data on lost or stolen devices.</string>
+
     <!-- Radio button text that require a PIN to start device [CHAR LIMIT=NONE] -->
     <string name="encrypt_require_pin">Require PIN to start device</string>
     <!-- Radio button text that require a pattern to start device [CHAR LIMIT=NONE] -->

src/com/android/settings/ChooseLockGeneric.java

@@ -97,6 +97,7 @@ public class ChooseLockGeneric extends SettingsActivity {
         private int mEncryptionRequestQuality;
         private boolean mEncryptionRequestDisabled;
         private boolean mRequirePassword;
+        private boolean mForFingerprint = false;
         private String mUserPassword;
         private LockPatternUtils mLockPatternUtils;
         private FingerprintManager mFingerprintManager;
@@ -140,6 +141,8 @@ public class ChooseLockGeneric extends SettingsActivity {
                     ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, false);
             mChallenge = getActivity().getIntent().getLongExtra(
                     ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, 0);
+            mForFingerprint = getActivity().getIntent().getBooleanExtra(
+                    ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, false);
 
             if (savedInstanceState != null) {
                 mPasswordConfirmed = savedInstanceState.getBoolean(PASSWORD_CONFIRMED);
@@ -201,6 +204,8 @@ public class ChooseLockGeneric extends SettingsActivity {
                 final boolean accEn = AccessibilityManager.getInstance(context).isEnabled();
                 final boolean required = mLockPatternUtils.isCredentialRequiredToDecrypt(!accEn);
                 Intent intent = getEncryptionInterstitialIntent(context, quality, required);
+                intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT,
+                        mForFingerprint);
                 startActivityForResult(intent, ENABLE_ENCRYPTION_REQUEST);
             } else {
                 mRequirePassword = false; // device encryption not enabled or not device owner.

src/com/android/settings/ChooseLockSettingsHelper.java

@@ -32,6 +32,7 @@ public final class ChooseLockSettingsHelper {
     public static final String EXTRA_KEY_HAS_CHALLENGE = "has_challenge";
     public static final String EXTRA_KEY_CHALLENGE = "challenge";
     public static final String EXTRA_KEY_CHALLENGE_TOKEN = "hw_auth_token";
+    public static final String EXTRA_KEY_FOR_FINGERPRINT = "for_fingerprint";
 
 
     private LockPatternUtils mLockPatternUtils;

src/com/android/settings/EncryptionInterstitial.java

@@ -95,24 +95,32 @@ public class EncryptionInterstitial extends SettingsActivity {
                     (RadioButton) view.findViewById(R.id.encrypt_dont_require_password);
             mEncryptionMessage =
                     (TextView) view.findViewById(R.id.encryption_message);
+            boolean forFingerprint = getActivity().getIntent().getBooleanExtra(
+                    ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, false);
             int quality = getActivity().getIntent().getIntExtra(EXTRA_PASSWORD_QUALITY, 0);
             final int msgId;
             final int enableId;
             final int disableId;
             switch (quality) {
                 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
-                    msgId = R.string.encryption_interstitial_message_pattern;
+                    msgId = forFingerprint ?
+                            R.string.encryption_interstitial_message_pattern_for_fingerprint :
+                            R.string.encryption_interstitial_message_pattern;
                     enableId = R.string.encrypt_require_pattern;
                     disableId = R.string.encrypt_dont_require_pattern;
                     break;
                 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
                 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
-                    msgId = R.string.encryption_interstitial_message_pin;
+                    msgId = forFingerprint ?
+                            R.string.encryption_interstitial_message_pin_for_fingerprint :
+                            R.string.encryption_interstitial_message_pin;
                     enableId = R.string.encrypt_require_pin;
                     disableId = R.string.encrypt_dont_require_pin;
                     break;
                 default:
-                    msgId = R.string.encryption_interstitial_message_password;
+                    msgId = forFingerprint ?
+                            R.string.encryption_interstitial_message_password_for_fingerprint :
+                            R.string.encryption_interstitial_message_password;
                     enableId = R.string.encrypt_require_password;
                     disableId = R.string.encrypt_dont_require_password;
                     break;

src/com/android/settings/fingerprint/FingerprintEnrollOnboard.java

@@ -64,6 +64,7 @@ public class FingerprintEnrollOnboard extends FingerprintEnrollBase {
         intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS, true);
         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
         intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
+        intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, true);
         startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
     }