adding titleView support on navigationBar

MVMCoreUI/Atomic/Molecules/NavigationBar/NavigationItemModel.swift

@@ -22,6 +22,7 @@ public class NavigationItemModel: NavigationItemModelProtocol, MoleculeModelProt
     public var backButton: (NavigationButtonModelProtocol & MoleculeModelProtocol)? = NavigationImageButtonModel(with: "nav_back", action: ActionBackModel())
     public var additionalLeftButtons: [(NavigationButtonModelProtocol & MoleculeModelProtocol)]?
     public var additionalRightButtons: [(NavigationButtonModelProtocol & MoleculeModelProtocol)]?
+    public var titleView: MoleculeModelProtocol?
     
     public init() {
         hidden = false
@@ -43,6 +44,7 @@ public class NavigationItemModel: NavigationItemModelProtocol, MoleculeModelProt
         case showRightPanelButton
         case additionalLeftButtons
         case additionalRightButtons
+        case titleView
     }
 
     required public init(from decoder: Decoder) throws {
@@ -58,6 +60,7 @@ public class NavigationItemModel: NavigationItemModelProtocol, MoleculeModelProt
         }
         additionalLeftButtons = try typeContainer.decodeModelsIfPresent(codingKey: .additionalLeftButtons)
         additionalRightButtons = try typeContainer.decodeModelsIfPresent(codingKey: .additionalRightButtons)
+        titleView = try typeContainer.decodeModelIfPresent(codingKey: .titleView)
     }
               
     open func encode(to encoder: Encoder) throws {
@@ -72,5 +75,6 @@ public class NavigationItemModel: NavigationItemModelProtocol, MoleculeModelProt
         try container.encodeModelIfPresent(backButton, forKey: .backButton)
         try container.encodeModelsIfPresent(additionalLeftButtons, forKey: .additionalLeftButtons)
         try container.encodeModelsIfPresent(additionalRightButtons, forKey: .additionalRightButtons)
+        try container.encodeModelIfPresent(titleView, forKey: .titleView)
     }
 }

MVMCoreUI/Atomic/Protocols/ModelProtocols/NavigationItemModelProtocol.swift

@@ -18,4 +18,5 @@ public protocol NavigationItemModelProtocol {
     var backButton: (NavigationButtonModelProtocol & MoleculeModelProtocol)? { get set }
     var additionalLeftButtons: [(NavigationButtonModelProtocol & MoleculeModelProtocol)]? { get set }
     var additionalRightButtons: [(NavigationButtonModelProtocol & MoleculeModelProtocol)]? { get set }
+    var titleView: MoleculeModelProtocol? { get set }
 }

MVMCoreUI/Atomic/Protocols/ModelProtocols/TabPageModelProtocol.swift

@@ -8,7 +8,7 @@
 
 import Foundation
 
-public protocol TabPageModelProtocol {
+public protocol TabPageModelProtocol : ModelProtocol {
     var tabBarHidden: Bool { get set }
     var tabBarIndex: Int? { get set }
 }

MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController+Extension.swift

@@ -37,6 +37,8 @@ public extension MVMCoreUISplitViewController {
         
         setNavigationIconColor(navigationItemModel.tintColor.uiColor)
         
+        setNavigationTitle(navigationController: navigationController, navigationItemModel: navigationItemModel, viewController: viewController)
+        
         if let progress = progress {
             setBottomProgressBarProgress(progress)
         }
@@ -108,6 +110,14 @@ public extension MVMCoreUISplitViewController {
         viewController.navigationItem.setRightBarButtonItems(rightItems.count > 0 ? rightItems : nil, animated: !DisableAnimations.boolValue)
     }
     
+    /// Sets the title of navigation item for the view controller based on model and splitview.
+    func setNavigationTitle(navigationController: UINavigationController, navigationItemModel: NavigationItemModelProtocol?, viewController: UIViewController) {
+        let delegate = (viewController as? MVMCoreViewControllerProtocol)?.delegateObject?() as? MVMCoreUIDelegateObject
+        if let titleViewModel = navigationItemModel?.titleView, let molecule = MoleculeObjectMapping.shared()?.createMolecule(titleViewModel, delegateObject: delegate, additionalData: nil) {
+            viewController.navigationItem.titleView = molecule
+        }
+    }
+    
     // MARK: - Legacy Functions
     /// Convenience setter for legacy files. Sets the navigation item for the view controller based on the json and splitview controller
     @objc static func setSplitViewController(for viewController: UIViewController, navigationController: UINavigationController, navigationJSON: [String: Any], leftPanelAccessible: Bool, rightPanelAccessible: Bool, progress: NSNumber?) throws {