From 9f7fc271dda8989fe5ad5786a2ab409385d6b78c Mon Sep 17 00:00:00 2001
From: Steve Kondik <steve@cyngn.com>
Date: Mon, 2 May 2016 04:01:43 -0700
Subject: keyguard: Allow disabling fingerprint wake-and-unlock

 * When the fingerprint sensor is embedded in the power key,
   wake-and-unlock is total chaos. Add an option to disable it.
 * The default behavior is unchanged.

Change-Id: I50c0a857daba92c17470d8089aca94099c792956
---
 packages/Keyguard/res/values/config.xml                     |  6 ++++++
 .../src/com/android/keyguard/KeyguardUpdateMonitor.java     | 13 ++++++++++---
 2 files changed, 16 insertions(+), 3 deletions(-)

(limited to 'packages/Keyguard')

diff --git a/packages/Keyguard/res/values/config.xml b/packages/Keyguard/res/values/config.xml
index b398ab2..ca7f204 100644
--- a/packages/Keyguard/res/values/config.xml
+++ b/packages/Keyguard/res/values/config.xml
@@ -28,4 +28,10 @@
 
     <!-- Threshold in micro amperes above which a charger is rated as "fast" -->
     <integer name="config_chargingFastThreshold">1500000</integer>
+
+    <!-- Should we listen for fingerprints when the screen is off?  Devices
+         with a rear-mounted sensor want this, but certain devices have
+         the sensor embedded in the power key and listening all the time
+         causes a poor experience. -->
+    <bool name="config_fingerprintWakeAndUnlock">true</bool>
 </resources>
diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java b/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
index d515d19..be8ded3 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
@@ -1050,9 +1050,16 @@ public class KeyguardUpdateMonitor implements TrustManager.TrustListener {
     }
 
     private boolean shouldListenForFingerprint() {
-        return (mKeyguardIsVisible || !mDeviceInteractive || mBouncer || mGoingToSleep)
-                && !mSwitchingUser && !mFingerprintAlreadyAuthenticated
-                && !isFingerprintDisabled(getCurrentUser());
+        if (!mSwitchingUser && !mFingerprintAlreadyAuthenticated
+                && !isFingerprintDisabled(getCurrentUser())) {
+            if (mContext.getResources().getBoolean(
+                    com.android.keyguard.R.bool.config_fingerprintWakeAndUnlock)) {
+                return mKeyguardIsVisible || !mDeviceInteractive || mBouncer || mGoingToSleep;
+            } else {
+                return mDeviceInteractive && (mKeyguardIsVisible || mBouncer);
+            }
+        }
+        return false;
     }
 
     private void startListeningForFingerprint() {
-- 
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