From b0b8c2e9a10699b140dd03840045f19cecca38d0 Mon Sep 17 00:00:00 2001
From: Adithya R <gh0strider.2k18.reborn@gmail.com>
Date: Tue, 25 Apr 2023 16:47:10 +0530
Subject: [PATCH] SystemUI: Add background protection to UdfpsFpmOtherView

This is used in fingerprint settings for trial authentication
(https://github.com/ArrowOS/android_packages_apps_Settings/commit/4a1115c07f4e285af808c93b08a83d4889c9e9b9).

Change-Id: I9a9ee2e7946d78d9cb9562dbda6f943341064abe
---
 packages/SystemUI/res/layout/udfps_fpm_other_view.xml  | 10 +++++++++-
 .../com/android/systemui/biometrics/UdfpsFpDrawable.kt |  5 +++++
 .../android/systemui/biometrics/UdfpsFpmOtherView.kt   |  6 ++++++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/packages/SystemUI/res/layout/udfps_fpm_other_view.xml b/packages/SystemUI/res/layout/udfps_fpm_other_view.xml
index 6ecbb473d720..06d3090ab4d7 100644
--- a/packages/SystemUI/res/layout/udfps_fpm_other_view.xml
+++ b/packages/SystemUI/res/layout/udfps_fpm_other_view.xml
@@ -20,9 +20,17 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <!-- Background protection -->
+    <ImageView
+        android:id="@+id/udfps_keyguard_fp_bg"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:src="@drawable/fingerprint_bg"/>
+
     <!-- Fingerprint -->
     <ImageView
         android:id="@+id/udfps_fpm_other_fp_view"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"/>
+        android:layout_height="match_parent"
+        android:tint="?android:attr/textColorPrimary"/>
 </com.android.systemui.biometrics.UdfpsFpmOtherView>
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsFpDrawable.kt b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsFpDrawable.kt
index 9f6b6d7472f9..7450430c18e2 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsFpDrawable.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsFpDrawable.kt
@@ -17,6 +17,7 @@ package com.android.systemui.biometrics
 
 import android.content.Context
 import android.graphics.Canvas
+import android.graphics.ColorFilter
 
 /**
  * Draws udfps fingerprint if sensor isn't illuminating.
@@ -28,4 +29,8 @@ class UdfpsFpDrawable(context: Context) : UdfpsDrawable(context) {
         }
         fingerprintDrawable.draw(canvas)
     }
+
+    override fun setColorFilter(colorFilter: ColorFilter?) {
+        fingerprintDrawable.colorFilter = colorFilter
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsFpmOtherView.kt b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsFpmOtherView.kt
index 4d6da8f4b3eb..72229d1ee0d1 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsFpmOtherView.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/UdfpsFpmOtherView.kt
@@ -16,8 +16,12 @@
 package com.android.systemui.biometrics
 
 import android.content.Context
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
 import android.util.AttributeSet
 import android.widget.ImageView
+
+import com.android.settingslib.Utils;
 import com.android.systemui.R
 
 /**
@@ -34,6 +38,8 @@ class UdfpsFpmOtherView(
     override fun onFinishInflate() {
         fingerprintView = findViewById(R.id.udfps_fpm_other_fp_view)!!
         fingerprintView.setImageDrawable(fingerprintDrawable)
+        fingerprintView.setColorFilter(PorterDuffColorFilter(Utils.getColorAttrDefaultColor(
+                mContext, android.R.attr.textColorPrimary), PorterDuff.Mode.SRC_ATOP))
     }
 
     override fun getDrawable(): UdfpsDrawable = fingerprintDrawable