Add ripple and border to emergency call button

Bug: 149109279
Test: visual (on walleye and crosshatch)
Change-Id: Iaa29965f63ae92c26f6924e4934eb7cb6b2754ce
(cherry picked from commit d35002d362474a69305cc28c2e30e8ecb531bc11)
diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 4f9911f..d6ee28b 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -2122,7 +2122,7 @@
     <!-- On the unlock pattern screen, shown at the top of the unlock screen to tell the user what to do. Below this text is the place for theu ser to draw the pattern. -->
     <string name="lockscreen_pattern_instructions">Draw pattern to unlock</string>
     <!-- Button at the bottom of the unlock screen to make an emergency call or access other emergency assistance functions. -->
-    <string name="lockscreen_emergency_call">Emergency</string>
+    <string name="lockscreen_emergency_call">Emergency call</string>
     <!-- Button at the bottom of the unlock screen that lets the user return to a call -->
     <string name="lockscreen_return_to_call">Return to call</string>
     <!-- Shown to confirm that the user entered their lock pattern correctly. -->
diff --git a/packages/SystemUI/res-keyguard/drawable/kg_emergency_button_background.xml b/packages/SystemUI/res-keyguard/drawable/kg_emergency_button_background.xml
new file mode 100644
index 0000000..cc2089f
--- /dev/null
+++ b/packages/SystemUI/res-keyguard/drawable/kg_emergency_button_background.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2020 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="?attr/wallpaperTextColorSecondary">
+    <item android:id="@android:id/background">
+        <shape
+            android:color="@android:color/transparent">
+            <stroke android:width="1dp" android:color="?attr/wallpaperTextColorSecondary"/>
+            <corners android:radius="24dp"/>
+        </shape>
+    </item>
+    <item android:id="@android:id/mask">
+        <shape android:shape="rectangle">
+            <solid android:color="?attr/wallpaperTextColorSecondary"/>
+            <corners android:radius="24dp"/>
+        </shape>
+    </item>
+</ripple>
\ No newline at end of file
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_emergency_carrier_area.xml b/packages/SystemUI/res-keyguard/layout/keyguard_emergency_carrier_area.xml
index 3018a022..370576b 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_emergency_carrier_area.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_emergency_carrier_area.xml
@@ -33,6 +33,7 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         style="@style/Keyguard.TextView"
+        android:layout_marginBottom="8dp"
         android:singleLine="true"
         android:ellipsize="marquee"
         android:visibility="gone"
@@ -42,11 +43,9 @@
     <com.android.keyguard.EmergencyButton
         android:id="@+id/emergency_call_button"
         android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_weight="1"
-        android:layout_marginTop="@dimen/eca_overlap"
+        android:layout_height="32dp"
+        android:layout_marginBottom="12dp"
         android:text="@*android:string/lockscreen_emergency_call"
-        style="@style/Keyguard.TextView.EmergencyButton"
-        android:textAllCaps="@bool/kg_use_all_caps" />
+        style="@style/Keyguard.TextView.EmergencyButton" />
 
 </com.android.keyguard.EmergencyCarrierArea>
diff --git a/packages/SystemUI/res-keyguard/values/styles.xml b/packages/SystemUI/res-keyguard/values/styles.xml
index 5f2a946..53eb234 100644
--- a/packages/SystemUI/res-keyguard/values/styles.xml
+++ b/packages/SystemUI/res-keyguard/values/styles.xml
@@ -23,10 +23,12 @@
         <item name="android:textColor">?attr/wallpaperTextColorSecondary</item>
         <item name="android:textSize">@dimen/kg_status_line_font_size</item>
     </style>
-    <style name="Keyguard.TextView.EmergencyButton" parent="@android:style/DeviceDefault.ButtonBar">
+    <style name="Keyguard.TextView.EmergencyButton" parent="Theme.SystemUI">
         <item name="android:textColor">?attr/wallpaperTextColorSecondary</item>
-        <item name="android:textSize">@dimen/kg_status_line_font_size</item>
-        <item name="android:background">@null</item>
+        <item name="android:textSize">14dp</item>
+        <item name="android:background">@drawable/kg_emergency_button_background</item>
+        <item name="android:paddingLeft">12dp</item>
+        <item name="android:paddingRight">12dp</item>
     </style>
     <style name="Widget.TextView.NumPadKey" parent="@android:style/Widget.TextView">
         <item name="android:singleLine">true</item>