Add OemExtension callbacks support

To get NFC state updates to registered Apps
- EE Activated/Deactivated

Bug: 329043522
Test: Manual test discovery on/off, RF Field ON/OFF, CE Activated or Not
Change-Id: I4363c6eb69e12cb3a867a0fd50e933514f2f4f6b
diff --git a/nfc/api/system-current.txt b/nfc/api/system-current.txt
index 24e14e6..8d1df4b 100644
--- a/nfc/api/system-current.txt
+++ b/nfc/api/system-current.txt
@@ -91,6 +91,7 @@
     method public void onDisable(@NonNull java.util.function.Consumer<java.lang.Boolean>);
     method public void onDisableFinished(int);
     method public void onDisableStarted();
+    method public void onEeListenActivated(boolean);
     method public void onEnable(@NonNull java.util.function.Consumer<java.lang.Boolean>);
     method public void onEnableFinished(int);
     method public void onEnableStarted();
diff --git a/nfc/java/android/nfc/INfcOemExtensionCallback.aidl b/nfc/java/android/nfc/INfcOemExtensionCallback.aidl
index 48c7ee6..28ea7b0 100644
--- a/nfc/java/android/nfc/INfcOemExtensionCallback.aidl
+++ b/nfc/java/android/nfc/INfcOemExtensionCallback.aidl
@@ -46,6 +46,7 @@
    void onCardEmulationActivated(boolean isActivated);
    void onRfFieldActivated(boolean isActivated);
    void onRfDiscoveryStarted(boolean isDiscoveryStarted);
+   void onEeListenActivated(boolean isActivated);
    void onGetOemAppSearchIntent(in List<String> firstPackage, in ResultReceiver intentConsumer);
    void onNdefMessage(in Tag tag, in NdefMessage message, in ResultReceiver hasOemExecutableContent);
    void onLaunchHceAppChooserActivity(in String selectedAid, in List<ApduServiceInfo> services, in ComponentName failedComponent, in String category);
diff --git a/nfc/java/android/nfc/NfcOemExtension.java b/nfc/java/android/nfc/NfcOemExtension.java
index 520ba89..43598c9 100644
--- a/nfc/java/android/nfc/NfcOemExtension.java
+++ b/nfc/java/android/nfc/NfcOemExtension.java
@@ -80,6 +80,7 @@
     private boolean mCardEmulationActivated = false;
     private boolean mRfFieldActivated = false;
     private boolean mRfDiscoveryStarted = false;
+    private boolean mEeListenActivated = false;
 
     /**
      * Mode Type for {@link #setControllerAlwaysOnMode(int)}.
@@ -320,6 +321,13 @@
         void onRfDiscoveryStarted(boolean isDiscoveryStarted);
 
         /**
+        * Notifies the NFCEE (NFC Execution Environment) Listen has been activated.
+        *
+        * @param isActivated true, if EE Listen is ON, else EE Listen is OFF.
+        */
+        void onEeListenActivated(boolean isActivated);
+
+        /**
          * Gets the intent to find the OEM package in the OEM App market. If the consumer returns
          * {@code null} or a timeout occurs, the intent from the first available package will be
          * used instead.
@@ -430,6 +438,7 @@
                 callback.onCardEmulationActivated(mCardEmulationActivated);
                 callback.onRfFieldActivated(mRfFieldActivated);
                 callback.onRfDiscoveryStarted(mRfDiscoveryStarted);
+                callback.onEeListenActivated(mEeListenActivated);
             });
         }
     }
@@ -704,6 +713,13 @@
         }
 
         @Override
+        public void onEeListenActivated(boolean isActivated) throws RemoteException {
+            mEeListenActivated = isActivated;
+            mCallbackMap.forEach((cb, ex) ->
+                    handleVoidCallback(isActivated, cb::onEeListenActivated, ex));
+        }
+
+        @Override
         public void onStateUpdated(int state) throws RemoteException {
             mCallbackMap.forEach((cb, ex) ->
                     handleVoidCallback(state, cb::onStateUpdated, ex));