From 5ac293f0406cc48cafb17a7f17eb0bfb50b3b2af Mon Sep 17 00:00:00 2001
From: sqian <shuoq@google.com>
Date: Wed, 17 Oct 2018 16:31:31 -0700
Subject: [PATCH] Introduce Emergency number functions APIs

- getCurrentEmergencyNumberList
- getCurrentEmergencyNumberList (per categories)
- isCurrentEmergencyNumber

Note: the implementaion from PhoneInterfaceManager is empty, but the names
of the APIs need to be finalized so that the usages and test plan are not
blocked.

Bug: 112657134
Test: Treehugger
Change-Id: I1e310941aea6d5288fd6c99071be6b46a8d98197
Merged-In: I854db34f4378f35f99c3d8133bf35f3d0b3aad2b
Merged-In: Ic0a22dd9c2023362bbb65b80cb78990ace7caac4
---
 api/current.txt                               |   4 +
 .../android/telephony/PhoneStateListener.java |   8 ++
 .../android/telephony/TelephonyManager.java   | 115 ++++++++++++++++++
 .../internal/telephony/ITelephony.aidl        |  11 ++
 4 files changed, 138 insertions(+)

diff --git a/api/current.txt b/api/current.txt
index f1700f25121e9..6d0c5a69081d6 100755
--- a/api/current.txt
+++ b/api/current.txt
@@ -42494,6 +42494,7 @@ package android.telephony {
     field public static final int LISTEN_CELL_LOCATION = 16; // 0x10
     field public static final int LISTEN_DATA_ACTIVITY = 128; // 0x80
     field public static final int LISTEN_DATA_CONNECTION_STATE = 64; // 0x40
+    field public static final int LISTEN_EMERGENCY_NUMBER_LIST = 16777216; // 0x1000000
     field public static final int LISTEN_MESSAGE_WAITING_INDICATOR = 4; // 0x4
     field public static final int LISTEN_NONE = 0; // 0x0
     field public static final int LISTEN_SERVICE_STATE = 1; // 0x1
@@ -42805,6 +42806,8 @@ package android.telephony {
     method public int getCallState();
     method public android.os.PersistableBundle getCarrierConfig();
     method public deprecated android.telephony.CellLocation getCellLocation();
+    method public java.util.Map<java.lang.Integer, java.util.List<android.telephony.emergency.EmergencyNumber>> getCurrentEmergencyNumberList();
+    method public java.util.Map<java.lang.Integer, java.util.List<android.telephony.emergency.EmergencyNumber>> getCurrentEmergencyNumberList(int);
     method public int getDataActivity();
     method public int getDataNetworkType();
     method public int getDataState();
@@ -42858,6 +42861,7 @@ package android.telephony {
     method public java.lang.String iccTransmitApduBasicChannel(int, int, int, int, int, java.lang.String);
     method public java.lang.String iccTransmitApduLogicalChannel(int, int, int, int, int, int, java.lang.String);
     method public boolean isConcurrentVoiceAndDataSupported();
+    method public boolean isCurrentEmergencyNumber(java.lang.String);
     method public boolean isDataEnabled();
     method public boolean isDataRoamingEnabled();
     method public boolean isHearingAidCompatibilitySupported();
diff --git a/telephony/java/android/telephony/PhoneStateListener.java b/telephony/java/android/telephony/PhoneStateListener.java
index 0ec85360908be..2abf98c73944e 100644
--- a/telephony/java/android/telephony/PhoneStateListener.java
+++ b/telephony/java/android/telephony/PhoneStateListener.java
@@ -301,6 +301,14 @@ public class PhoneStateListener {
     @SystemApi
     public static final int LISTEN_RADIO_POWER_STATE_CHANGED               = 0x00800000;
 
+    /**
+     * Listen for changes to emergency number list based on all active subscriptions.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
+     * app has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}).
+     */
+    public static final int LISTEN_EMERGENCY_NUMBER_LIST                   = 0x01000000;
+
     /*
      * Subscription used to listen to the phone state changes
      * @hide
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index e4f766f28d01c..9f697e9c6e93c 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -22,6 +22,7 @@ import static com.android.internal.util.Preconditions.checkNotNull;
 
 import android.Manifest;
 import android.annotation.IntDef;
+import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SdkConstant;
@@ -57,6 +58,8 @@ import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
 import android.telephony.VisualVoicemailService.VisualVoicemailTask;
+import android.telephony.emergency.EmergencyNumber;
+import android.telephony.emergency.EmergencyNumber.EmergencyServiceCategories;
 import android.telephony.ims.aidl.IImsConfig;
 import android.telephony.ims.aidl.IImsMmTelFeature;
 import android.telephony.ims.aidl.IImsRcsFeature;
@@ -86,6 +89,7 @@ import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.Map;
 import java.util.concurrent.Executor;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -9047,4 +9051,115 @@ public class TelephonyManager {
         }
     }
 
+    /**
+     * Get the emergency number list based on current locale, sim, default, modem and network.
+     *
+     * <p>The emergency number {@link EmergencyNumber} with higher display priority is located at
+     * the smaller index in the returned list.
+     *
+     * <p>The subscriptions which the returned list would be based on, are all the active
+     * subscriptions, no matter which subscription could be used to create TelephonyManager.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
+     * app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     *
+     * @return Map including the key as the active subscription ID (Note: if there is no active
+     * subscription, the key is {@link SubscriptionManager#DEFAULT_SUBSCRIPTION_ID}) and the value
+     * as the list of {@link EmergencyNumber}; null if this information is not available.
+     */
+    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    @Nullable
+    public Map<Integer, List<EmergencyNumber>> getCurrentEmergencyNumberList() {
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony == null) {
+                return null;
+            }
+            return telephony.getCurrentEmergencyNumberList(mContext.getOpPackageName());
+        } catch (RemoteException ex) {
+            Log.e(TAG, "getCurrentEmergencyNumberList RemoteException", ex);
+        }
+        return null;
+    }
+
+    /**
+     * Get the per-category emergency number list based on current locale, sim, default, modem
+     * and network.
+     *
+     * <p>The emergency number {@link EmergencyNumber} with higher display priority is located at
+     * the smaller index in the returned list.
+     *
+     * <p>The subscriptions which the returned list would be based on, are all the active
+     * subscriptions, no matter which subscription could be used to create TelephonyManager.
+     *
+     * <p>Requires permission {@link android.Manifest.permission#READ_PHONE_STATE} or the calling
+     * app has carrier privileges (see {@link #hasCarrierPrivileges}).
+     *
+     * @param categories the emergency service categories which are the bitwise-OR combination of
+     * the following constants:
+     * <ol>
+     * <li>{@link EmergencyNumber#EMERGENCY_SERVICE_CATEGORY_UNSPECIFIED} </li>
+     * <li>{@link EmergencyNumber#EMERGENCY_SERVICE_CATEGORY_POLICE} </li>
+     * <li>{@link EmergencyNumber#EMERGENCY_SERVICE_CATEGORY_AMBULANCE} </li>
+     * <li>{@link EmergencyNumber#EMERGENCY_SERVICE_CATEGORY_FIRE_BRIGADE} </li>
+     * <li>{@link EmergencyNumber#EMERGENCY_SERVICE_CATEGORY_MARINE_GUARD} </li>
+     * <li>{@link EmergencyNumber#EMERGENCY_SERVICE_CATEGORY_MOUNTAIN_RESCUE} </li>
+     * <li>{@link EmergencyNumber#EMERGENCY_SERVICE_CATEGORY_MIEC} </li>
+     * <li>{@link EmergencyNumber#EMERGENCY_SERVICE_CATEGORY_AIEC} </li>
+     * </ol>
+     * @return Map including the key as the active subscription ID (Note: if there is no active
+     * subscription, the key is {@link SubscriptionManager#DEFAULT_SUBSCRIPTION_ID}) and the value
+     * as the list of {@link EmergencyNumber}; null if this information is not available.
+     */
+    @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
+    @Nullable
+    public Map<Integer, List<EmergencyNumber>> getCurrentEmergencyNumberList(
+            @EmergencyServiceCategories int categories) {
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony == null) {
+                return null;
+            }
+            Map<Integer, List<EmergencyNumber>> numberMap = telephony
+                    .getCurrentEmergencyNumberList(mContext.getOpPackageName());
+            if (numberMap != null) {
+                for (Integer subscriptionId : numberMap.keySet()) {
+                    List<EmergencyNumber> numberList = numberMap.get(subscriptionId);
+                    for (EmergencyNumber number : numberList) {
+                        if (!number.isInEmergencyServiceCategories(categories)) {
+                            numberList.remove(number);
+                        }
+                    }
+                }
+            }
+            return numberMap;
+        } catch (RemoteException ex) {
+            Log.e(TAG, "getCurrentEmergencyNumberList with Categories RemoteException", ex);
+        }
+        return null;
+    }
+
+    /**
+     * Checks if the supplied number is an emergency number based on current locale, sim, default,
+     * modem and network.
+     *
+     * <p>The subscriptions which the identification would be based on, are all the active
+     * subscriptions, no matter which subscription could be used to create TelephonyManager.
+     *
+     * @param number - the number to look up
+     * @return {@code true} if the given number is an emergency number based on current locale,
+     * sim, modem and network; {@code false} otherwise.
+     */
+    public boolean isCurrentEmergencyNumber(@NonNull String number) {
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony == null) {
+                return false;
+            }
+            return telephony.isCurrentEmergencyNumber(number);
+        } catch (RemoteException ex) {
+            Log.e(TAG, "isCurrentEmergencyNumber RemoteException", ex);
+        }
+        return false;
+    }
 }
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 4b9b0fb84f16a..01c45545dc9de 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -49,6 +49,7 @@ import com.android.internal.telephony.CellNetworkScanResult;
 import com.android.internal.telephony.OperatorInfo;
 
 import java.util.List;
+import java.util.Map;
 
 import android.telephony.UiccSlotInfo;
 
@@ -1618,6 +1619,16 @@ interface ITelephony {
      */
     boolean isTtyOverVolteEnabled(int subId);
 
+    /**
+     * Return the emergency number list from all the active subscriptions.
+     */
+    Map getCurrentEmergencyNumberList(String callingPackage);
+
+    /**
+     * Identify if the number is emergency number, based on all the active subscriptions.
+     */
+    boolean isCurrentEmergencyNumber(String number);
+
     /**
      * Return a list of certs in hex string from loaded carrier privileges access rules.
      */