refactor

Author: insub4067

Sources/SwiftUINavigator/Navigator.swift

@@ -11,6 +11,9 @@ import UIKit
 public class Navigator {
 
     public weak var viewController: UIViewController?
+    var navigationController: UINavigationController? {
+        viewController?.navigationController
+    }
 
     public func set(_ viewController: UIViewController?) {
         self.viewController = viewController
@@ -26,52 +29,51 @@ public extension Navigator {
 
     func present(_ destination: UIViewController, style: UIModalPresentationStyle = .fullScreen, animated: Bool = true) {
         destination.modalPresentationStyle = style
-        self.viewController?.navigationController?.topViewController?.present(destination, animated: animated)
+        navigationController?.topViewController?.present(destination, animated: animated)
     }
 }
 
 // Dismiss, Dismiss
 public extension Navigator {
 
     func popToRootViewController(_ animated: Bool = true) {
-        viewController?.navigationController?.popToRootViewController(animated: animated)
+        navigationController?.popToRootViewController(animated: animated)
     }
 
     func pop(animated: Bool = true) {
-        self.viewController?.navigationController?.popViewController(animated: animated)
+        navigationController?.popViewController(animated: animated)
     }
 
     func pop(to controller: AnyClass, animated: Bool = true) {
 
-        let target = self.viewController?.navigationController?.viewControllers
+        let target = self.navigationController?
+            .viewControllers
             .filter { $0.isMember(of: controller) }
             .first
 
         guard let target = target else { return }
-        self.viewController?.navigationController?.popToViewController(target, animated: animated)
+        popToViewController(target, animated: animated)
     }
 
     func pop(to identifier: String, animated: Bool = true) {
-        let target = self.viewController?.navigationController?.viewControllers
+        let target = self.navigationController?
+            .viewControllers
             .filter { $0.identifier == identifier }
             .first
 
         guard let target = target else { return }
-        self.viewController?.navigationController?.popToViewController(target, animated: animated)
+        popToViewController(target, animated: animated)
     }
 
     func pop(toOneOf controllers: AnyClass..., animated: Bool = true) {
 
-        guard let viewControllers = self
-            .viewController?
-            .navigationController?
-            .viewControllers
+        guard let viewControllers = navigationController?.viewControllers
         else { return }
 
         for controller in viewControllers {
             let shouldPop = controllers.contains(where: { controller.isMember(of: $0) })
             guard shouldPop else { continue }
-            self.viewController?.navigationController?.popToViewController(controller, animated: animated)
+            popToViewController(controller, animated: animated)
         }
     }
 
@@ -88,15 +90,23 @@ public extension Navigator {
             .first
 
         guard let target = target else { return }
-        self.viewController?.navigationController?.popToViewController(target, animated: animated)
+        popToViewController(target, animated: animated)
+    }
+    
+    func popToViewController(_ controller: UIViewController, animated: Bool = true) {
+        navigationController?.popToViewController(controller, animated: animated)
     }
 
+    
     func dismiss(animated: Bool = true) {
-        self.viewController?.dismiss(animated: animated)
+        viewController?.dismiss(animated: animated)
     }
 
     func removeFromParentAndSuperView() {
-        self.viewController?.navigationController?.topViewController?.removeFromParentAndSuperView()
+        viewController?
+            .navigationController?
+            .topViewController?
+            .removeFromParentAndSuperView()
     }
 }
 #endif