Add Wi-Fi calling state setting to telephony interfaces

Change-Id: I01029ade0eb1ff981cb92a536d042a02129a053f

core/java/android/provider/Settings.java

@@ -2483,6 +2483,14 @@ public final class Settings {
             NOTIFICATION_SOUND
         };
 
+        /**
+         * When to use Wi-Fi calling
+         *
+         * @see android.telephony.TelephonyManager.WifiCallingChoices
+         * @hide
+         */
+        public static final String WHEN_TO_MAKE_WIFI_CALLS = "when_to_make_wifi_calls";
+
         // Settings moved to Settings.Secure
 
         /**

telephony/java/android/telephony/TelephonyManager.java

@@ -62,6 +62,20 @@ public class TelephonyManager {
     private static ITelephonyRegistry sRegistry;
     private final Context mContext;
 
+    /**
+     * The allowed states of Wi-Fi calling.
+     *
+     * @hide
+     */
+    public interface WifiCallingChoices {
+        /** Always use Wi-Fi calling */
+        static final int ALWAYS_USE = 0;
+        /** Never use Wi-Fi calling */
+        static final int NEVER_USE = 1;
+        /** Ask the user whether to use Wi-Fi on every call */
+        static final int ASK_EVERY_TIME = 2;
+    }
+
     /** @hide */
     public TelephonyManager(Context context) {
         Context appContext = context.getApplicationContext();
@@ -1617,5 +1631,31 @@ public class TelephonyManager {
             Rlog.e(TAG, "setRadioMode NPE", ex);
         }
         return false;
+
+    /*
+     * Obtain the current state of Wi-Fi calling.
+     *
+     * @hide
+     * @see android.telephony.TelephonyManager.WifiCallingChoices
+     */
+    public int getWhenToMakeWifiCalls() {
+        try {
+            return getITelephony().getWhenToMakeWifiCalls();
+        } catch (RemoteException ex) {
+            return WifiCallingChoices.NEVER_USE;
+        }
+    }
+
+    /**
+     * Set the current state of Wi-Fi calling.
+     *
+     * @hide
+     * @see android.telephony.TelephonyManager.WifiCallingChoices
+     */
+    public void setWhenToMakeWifiCalls(int state) {
+        try {
+            getITelephony().setWhenToMakeWifiCalls(state);
+        } catch (RemoteException ex) {
+        }
     }
 }

telephony/java/com/android/internal/telephony/ITelephony.aidl

@@ -425,4 +425,18 @@ interface ITelephony {
      */
     void newIncomingThirdPartyCall(in ComponentName component, String callId,
             String callerDisplayName);
+
+    /**
+     * Obtain the current state of Wi-Fi calling.
+     *
+     * @see android.telephony.TelephonyManager.WifiCallingChoices
+     */
+    int getWhenToMakeWifiCalls();
+
+    /**
+     * Set the current state of Wi-Fi calling.
+     *
+     * @see android.telephony.TelephonyManager.WifiCallingChoices
+     */
+    void setWhenToMakeWifiCalls(int state);
 }