fix iOS 12 behavior when calling dismiss without presentedController, add withAnimationCompletion for StackRoutable

TICoordinatorKit.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TICoordinatorKit'
-  s.version          = '1.1.5'
+  s.version          = '1.1.7'
   s.summary          = 'A framework for performing navigation in iOS application.'
   s.homepage         = 'https://github.com/TouchInstinct/TICoordinatorKit'
   s.license          = 'Apache License, Version 2.0'

TICoordinatorKit/Classes/Routable/Modal/ModalRouter.swift

@@ -72,11 +72,18 @@ public final class ModalRouter: ModalRoutable {
     }
 
     public func dismissModule(animated: Bool, completion: (() -> ())?) {
-        rootController?.dismiss(animated: animated) { [weak self] in
-            self?.topController = self?.rootController
-            self?.childRootControllers = []
+        let dismissCompletion = {
+            self.topController = self.rootController
+            self.childRootControllers = []
             completion?()
         }
+
+        guard rootController?.presentedViewController != nil else {
+            dismissCompletion()
+            return
+        }
+
+        rootController?.dismiss(animated: animated, completion: dismissCompletion)
     }
 
     public func presentChild(_ module: Presentable?,

TICoordinatorKit/Classes/Routable/Stack/StackRoutable.swift

@@ -51,3 +51,21 @@ public protocol StackRoutable: ModalRoutable {
     func pop(to module: Presentable?)
     func pop(to module: Presentable?, animated: Bool)
 }
+
+public extension StackRoutable {
+    var headModuleInTheStack: Bool {
+        if let headModule = headModule, headModule.toPresent()?.parent === toPresent() {
+            return true
+        }
+
+        return false
+    }
+
+    func withAnimationCompletion(_ animationCompletion: (() -> Void)?,
+                                 routerActions: (StackRoutable) -> Void) {
+        CATransaction.begin()
+        CATransaction.setCompletionBlock(animationCompletion)
+        routerActions(self)
+        CATransaction.commit()
+    }
+}