feat: expose external parameter to contact event

README.md

@@ -254,7 +254,7 @@ console.log(`Contact was ${updated ? 'updated' : 'not updated'}.`)
 
 ### `contacts.listener`
 
-This module exposes an `EventEmitter`, which can be used to listen to potential changes to the `CNContactStore`. When a contact is changed either with methods contained in this module, or manually by a user, the `contact-changed` event will be emitted.
+This module exposes an `EventEmitter`, which can be used to listen to potential changes to the `CNContactStore`. When a contact is changed either with methods contained in this module, or manually by a user, the `contact-changed` event will be emitted with one parameter `external`. This signifies whether or not the change to contact data originated outside the current app.
 
 Owing to the underlying architecture of this module, the listener must be manually managed; before use you must initialize it with `listener.setup()` and when you are finished listening for events you must remove it with `listener.remove()`. To check if a listener is currently active, use `listener.isListening()`.
 
@@ -274,8 +274,8 @@ addNewContact({
   emailAddresses: ['[email protected]'],
 })
 
-listener.once('contact-changed', () => {
-  console.log('A contact was changed!')
+listener.once('contact-changed', (external) => {
+  console.log(`A contact was changed ${external ? 'outside of' : 'within'} this app!`)
   listener.remove()
 })
 ```

contacts.mm

@@ -665,10 +665,16 @@ CNAuthorizationStatus AuthStatus() {
                   return;
 
                 contacts_ref.Reset();
-                auto callback = [](Napi::Env env, Napi::Function js_cb,
-                                   const char *value) {
-                  js_cb.Call({Napi::String::New(env, value)});
+                bool external =
+                    [[info objectForKey:@"CNNotificationOriginationExternally"]
+                        boolValue];
+
+                auto callback = [external](Napi::Env env, Napi::Function js_cb,
+                                           const char *value) {
+                  js_cb.Call({Napi::String::New(env, value),
+                              Napi::Boolean::New(env, external)});
                 };
+
                 ts_fn.BlockingCall("contact-changed", callback);
               }];