Add panic gesture settings page.

Ui is not final, the strings and video are placeholder only.

Bug: 161394591
Test: robotests
Change-Id: I8ada396506363e4711a1544e2c7ba1cd0e5d2dda

res/values/config.xml

@@ -462,4 +462,7 @@
 
     <!-- Whether to show Smooth Display feature in Settings Options -->
     <bool name="config_show_smooth_display">false</bool>
+
+    <!-- Whether to show panic button gesture in Settings -->
+    <bool name="config_show_emergency_sos_gesture_settings">true</bool>
 </resources>

res/values/strings.xml

@@ -10949,6 +10949,12 @@
     <!-- Summary text for ambient display tap [CHAR LIMIT=NONE]-->
     <string name="ambient_display_tap_screen_summary">To check time, notifications, and other info, tap your screen.</string>
 
+    <!-- Preference title to enable feature for calling emergency services at panic/distress moments[CHAR_LIMIT=60]-->
+    <string name="emergency_sos_gesture_screen_title">Panic button</string>
+
+    <!-- Preference summary to enable feature for calling emergency services at panic/distress moments[CHAR_LIMIT=NONE]-->
+    <string name="emergency_sos_gesture_screen_summary">Start the emergency SOS actions by pressing the power button quickly 5 times.</string>
+
     <!-- Title text for swiping downwards on fingerprint sensor for notifications [CHAR LIMIT=80]-->
     <string name="fingerprint_swipe_for_notifications_title">Swipe fingerprint for notifications</string>
     <!-- Title text for fingerprint gesture preference screen [CHAR LIMIT=25] -->

res/xml/emergency_sos_gesture_settings.xml

@@ -0,0 +1,36 @@
+<?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
+  -->
+
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:title="@string/emergency_sos_gesture_screen_title">
+
+    <com.android.settings.widget.VideoPreference
+        android:key="gesture_emergency_sos_button_screen_video"
+        app:animation="@raw/gesture_double_tap"
+        app:preview="@drawable/gesture_double_tap" />
+
+    <SwitchPreference
+        android:key="gesture_emergency_sos_button"
+        android:title="@string/emergency_sos_gesture_screen_title"
+        android:summary="@string/emergency_sos_gesture_screen_summary"
+        app:keywords="@string/keywords_gesture"
+        app:controller="com.android.settings.gestures.EmergencySosGesturePreferenceController"
+        app:allowDividerAbove="true" />
+
+</PreferenceScreen>

res/xml/gestures.xml

@@ -20,6 +20,12 @@
     xmlns:settings="http://schemas.android.com/apk/res-auto"
     android:title="@string/gesture_preference_title">
 
+    <Preference
+        android:key="emergency_sos_button_summary"
+        android:title="@string/emergency_sos_gesture_screen_title"
+        android:fragment="com.android.settings.gestures.EmergencySosGestureSettings"
+        settings:controller="com.android.settings.gestures.EmergencySosGesturePreferenceController" />
+
     <Preference
         android:key="gesture_assist_input_summary"
         android:title="@string/assist_gesture_title"