[Fix, iOS] Preserve customStyleCallback when updating customStyleId dynamically

Author: note11g

ios/Classes/applier/option/NaverMapApplierImpl.swift

@@ -3,13 +3,15 @@ import NMapsMap
 internal class NaverMapApplierImpl: NaverMapOptionApplier {
     private let isFirst: Bool
     private let naverMapView: NMFNaverMapView
+    private let customStyleCallbacks: CustomStyleCallbacks?
     private var mapView: NMFMapView {
         naverMapView.mapView
     }
 
-    init(_ mapView: NMFNaverMapView, isFirst: Bool) {
+    init(_ mapView: NMFNaverMapView, isFirst: Bool, customStyleCallbacks: CustomStyleCallbacks? = nil) {
         naverMapView = mapView
         self.isFirst = isFirst
+        self.customStyleCallbacks = customStyleCallbacks
     }
 
     func setInitialCameraPosition(_ rawPosition: Any) {
@@ -159,6 +161,11 @@ internal class NaverMapApplierImpl: NaverMapOptionApplier {
     }
 
     func setCustomStyleId(_ rawCustomStyleId: Any?) {
-        mapView.customStyleId = castOrNull(rawCustomStyleId, caster: asString) ?? "" /// todo: SDK 업데이트 후 fallback empty string 지우기. 현재는 임시 조치 (정상 동작은 함)
+        let styleId = castOrNull(rawCustomStyleId, caster: asString) ?? ""  /// todo: SDK 업데이트 후 fallback empty string 지우기. 현재는 임시 조치 (정상 동작은 함)
+        mapView.setCustomStyleId(
+            styleId,
+            loadHandler: customStyleCallbacks?.loadHandler,
+            failHandler: customStyleCallbacks?.failHandler
+        )
     }
 }

ios/Classes/controller/NaverMapControlSenderExtensions.swift

@@ -0,0 +1,12 @@
+import Foundation
+
+typealias CustomStyleCallbacks = (loadHandler: () -> Void, failHandler: (any Error) -> Void)
+
+internal extension NaverMapControlSender {
+    func getCustomStyleCallback() -> CustomStyleCallbacks {
+        return (
+            loadHandler: onCustomStyleLoaded,
+            failHandler: onCustomStyleLoadFailed
+        )
+    }
+}

ios/Classes/controller/NaverMapController.swift

@@ -178,7 +178,7 @@ internal class NaverMapController: NaverMapControlSender, NaverMapControlHandler
 
     func updateOptions(options: Dictionary<String, Any?>, onSuccess: @escaping (Any?) -> ()) {
         naverMapViewOptions = NaverMapViewOptions.fromMessageable(options)
-        naverMapViewOptions!.updateWithNaverMapView(naverMap: naverMap, isFirst: false)
+        naverMapViewOptions!.updateWithNaverMapView(naverMap: naverMap, isFirst: false, customStyleCallbacks: getCustomStyleCallback())
         onSuccess(nil)
     }
 

ios/Classes/model/map/NaverMapViewOptions.swift

@@ -9,11 +9,11 @@ internal struct NaverMapViewOptions {
         return NaverMapViewOptions(args: messageableDict, consumeSymbolTapEvents: consumeSymbolTapEvents)
     }
 
-    func updateWithNaverMapView(naverMap: NMFNaverMapView, isFirst: Bool) {
+    func updateWithNaverMapView(naverMap: NMFNaverMapView, isFirst: Bool, customStyleCallbacks: CustomStyleCallbacks? = nil) {
         naverMap.showCompass = false
         naverMap.showZoomControls = false
 
-        let applier = NaverMapApplierImpl(naverMap, isFirst: isFirst)
+        let applier = NaverMapApplierImpl(naverMap, isFirst: isFirst, customStyleCallbacks: customStyleCallbacks)
         try! applier.applyOptions(args: args)
     }
 }

ios/Classes/view/NaverMapViewEventDelegate.swift

@@ -48,12 +48,8 @@ internal class NaverMapViewEventDelegate: NSObject, NMFMapViewTouchDelegate, NMF
 
         mapView.setCustomStyleId(
             mapView.customStyleId,
-            loadHandler: { [weak self] in
-                self?.sender?.onCustomStyleLoaded()
-            },
-            failHandler: { [weak self] exception in
-                self?.sender?.onCustomStyleLoadFailed(exception: exception)
-            }
+            loadHandler: sender?.onCustomStyleLoaded,
+            failHandler: sender?.onCustomStyleLoadFailed,
         )
     }