From b933e5742db97a18a35453c4597238c968ba607a Mon Sep 17 00:00:00 2001
From: Avinash Vadlamudi <avivadla@google.com>
Date: Wed, 11 Jan 2023 09:14:26 +0000
Subject: [PATCH] [Auto Pin Confirm]: Create a setting to determine Auto Pin
 Confirm behaviour

- pin_auto_confirm setting will determine whether the entered pin should auto confirm after entering the exact digits or not.

Bug: 262936381
Test: Manual Test
Change-Id: I618fae69b0b7f54598940347e86927b64b591808
---
 .../internal/widget/LockPatternUtils.java     | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/core/java/com/android/internal/widget/LockPatternUtils.java b/core/java/com/android/internal/widget/LockPatternUtils.java
index 981fbe78032aa..2f514795f3421 100644
--- a/core/java/com/android/internal/widget/LockPatternUtils.java
+++ b/core/java/com/android/internal/widget/LockPatternUtils.java
@@ -48,6 +48,7 @@ import android.os.SystemClock;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.os.storage.StorageManager;
+import android.provider.DeviceConfig;
 import android.provider.Settings;
 import android.text.TextUtils;
 import android.util.Log;
@@ -165,9 +166,17 @@ public class LockPatternUtils {
     private static final String KNOWN_TRUST_AGENTS = "lockscreen.knowntrustagents";
     private static final String IS_TRUST_USUALLY_MANAGED = "lockscreen.istrustusuallymanaged";
 
+    private static final String AUTO_PIN_CONFIRM = "lockscreen.auto_pin_confirm";
+
     public static final String CURRENT_LSKF_BASED_PROTECTOR_ID_KEY = "sp-handle";
     public static final String PASSWORD_HISTORY_DELIMITER = ",";
 
+    /**
+     * drives the pin auto confirmation feature availability in code logic.
+     */
+    public static final String FLAG_ENABLE_AUTO_PIN_CONFIRMATION =
+            "AutoPinConfirmation__enable_auto_pin_confirmation";
+
     @UnsupportedAppUsage
     private final Context mContext;
     @UnsupportedAppUsage
@@ -647,6 +656,38 @@ public class LockPatternUtils {
                 || isDemoUser;
     }
 
+    /**
+     * Sets the pin auto confirm capability to enabled or disabled
+     * @param enabled enables pin auto confirm capability when true
+     * @param userId user ID of the user this has effect on
+     */
+    public void setAutoPinConfirm(boolean enabled, int userId) {
+        setBoolean(AUTO_PIN_CONFIRM, enabled, userId);
+    }
+
+    /**
+     * Determines if the auto pin confirmation feature is enabled or not for current user
+     * If setting is not available, the default behaviour is disabled
+     * @param userId user ID of the user this has effect on
+     *
+     * @return true, if the entered pin should be auto confirmed
+     */
+    public boolean isAutoPinConfirmEnabled(int userId) {
+        return getBoolean(AUTO_PIN_CONFIRM, /* defaultValue= */ false, userId);
+    }
+
+    /**
+     * Whether the auto pin feature logic is available or not.
+     * @return true, if deviceConfig flag is set to true or the flag is not propagated and
+     * defaultValue is true.
+     */
+    public boolean isAutoPinConfirmFeatureAvailable() {
+        return DeviceConfig.getBoolean(
+                DeviceConfig.NAMESPACE_AUTO_PIN_CONFIRMATION,
+                FLAG_ENABLE_AUTO_PIN_CONFIRMATION,
+                /* defaultValue= */ false);
+    }
+
     /** Returns if the given quality maps to an alphabetic password */
     public static boolean isQualityAlphabeticPassword(int quality) {
         return quality >= PASSWORD_QUALITY_ALPHABETIC;