forked and added changes (tab feature and restore view controller feature)

Pod/Classes/SideMenuManager.swift

@@ -6,15 +6,15 @@
 //
 
 /* Example usage:
-     // Define the menus
-     SideMenuManager.menuLeftNavigationController = storyboard!.instantiateViewController(withIdentifier: "LeftMenuNavigationController") as? UISideMenuNavigationController
-     SideMenuManager.menuRightNavigationController = storyboard!.instantiateViewController(withIdentifier: "RightMenuNavigationController") as? UISideMenuNavigationController
-     
-     // Enable gestures. The left and/or right menus must be set up above for these to work.
-     // Note that these continue to work on the Navigation Controller independent of the View Controller it displays!
-     SideMenuManager.menuAddPanGestureToPresent(toView: self.navigationController!.navigationBar)
-     SideMenuManager.menuAddScreenEdgePanGesturesToPresent(toView: self.navigationController!.view)
-*/
+ // Define the menus
+ SideMenuManager.menuLeftNavigationController = storyboard!.instantiateViewController(withIdentifier: "LeftMenuNavigationController") as? UISideMenuNavigationController
+ SideMenuManager.menuRightNavigationController = storyboard!.instantiateViewController(withIdentifier: "RightMenuNavigationController") as? UISideMenuNavigationController
+ 
+ // Enable gestures. The left and/or right menus must be set up above for these to work.
+ // Note that these continue to work on the Navigation Controller independent of the View Controller it displays!
+ SideMenuManager.menuAddPanGestureToPresent(toView: self.navigationController!.navigationBar)
+ SideMenuManager.menuAddScreenEdgePanGesturesToPresent(toView: self.navigationController!.view)
+ */
 
 open class SideMenuManager : NSObject {
     
@@ -30,7 +30,7 @@ open class SideMenuManager : NSObject {
         let appWindowRect = UIApplication.shared.keyWindow?.bounds ?? UIWindow().bounds
         return appWindowRect
     }
-
+    
     /**
      The presentation mode of the menu.
      
@@ -42,6 +42,12 @@ open class SideMenuManager : NSObject {
      */
     open static var menuPresentMode: MenuPresentMode = .viewSlideOut
     
+    /// Retrieves each already created view controller to front when called. Requires class restoration identifiers. Defaults to false.
+    open static var menuPreserveViewOnPush = false
+    
+    /// Mimics a tab function, by instantly presenting the view controller. Defaults to false.
+    open static var menuTabMode = false
+    
     /// Prevents the same view controller (or a view controller of the same class) from being pushed more than once. Defaults to true.
     open static var menuAllowPushOfSameClassTwice = true
     
@@ -251,7 +257,7 @@ open class SideMenuManager : NSObject {
      
      - Parameter toView: The view to add gestures to.
      - Parameter forMenu: The menu (left or right) you want to add a gesture for. If unspecified, gestures will be added for both sides.
- 
+     
      - Returns: The array of screen edge gestures added to `toView`.
      */
     @discardableResult open class func menuAddScreenEdgePanGesturesToPresent(toView: UIView, forMenu:UIRectEdge? = nil) -> [UIScreenEdgePanGestureRecognizer] {

Pod/Classes/UISideMenuNavigationController.swift

@@ -97,22 +97,22 @@ open class UISideMenuNavigationController: UINavigationController {
         SideMenuTransition.statusBarView?.isHidden = true
         coordinator.animate(alongsideTransition: { (context) -> Void in
             SideMenuTransition.presentMenuStart(forSize: size)
-            }) { (context) -> Void in
-                SideMenuTransition.statusBarView?.isHidden = false
+        }) { (context) -> Void in
+            SideMenuTransition.statusBarView?.isHidden = false
         }
     }
     
     override open func prepare(for segue: UIStoryboardSegue, sender: Any?) {
         if let menuViewController: UINavigationController = SideMenuTransition.presentDirection == .left ? SideMenuManager.menuLeftNavigationController : SideMenuManager.menuRightNavigationController,
             let presentingViewController = menuViewController.presentingViewController as? UINavigationController {
-                presentingViewController.prepare(for: segue, sender: sender)
+            presentingViewController.prepare(for: segue, sender: sender)
         }
     }
     
     override open func shouldPerformSegue(withIdentifier identifier: String, sender: Any?) -> Bool {
         if let menuViewController: UINavigationController = SideMenuTransition.presentDirection == .left ? SideMenuManager.menuLeftNavigationController : SideMenuManager.menuRightNavigationController,
             let presentingViewController = menuViewController.presentingViewController as? UINavigationController {
-                return presentingViewController.shouldPerformSegue(withIdentifier: identifier, sender: sender)
+            return presentingViewController.shouldPerformSegue(withIdentifier: identifier, sender: sender)
         }
         
         return super.shouldPerformSegue(withIdentifier: identifier, sender: sender)
@@ -125,7 +125,7 @@ open class UISideMenuNavigationController: UINavigationController {
             super.pushViewController(viewController, animated: animated)
             return
         }
-
+        
         let tabBarController = presentingViewController as? UITabBarController
         guard let navigationController = (tabBarController?.selectedViewController ?? presentingViewController) as? UINavigationController else {
             print("SideMenu Warning: attempt to push a View Controller from \(presentingViewController.self) where its navigationController == nil. It must be embedded in a Navigation Controller for this to work.")
@@ -147,6 +147,11 @@ open class UISideMenuNavigationController: UINavigationController {
         if SideMenuManager.menuAllowPopIfPossible {
             for subViewController in navigationController.viewControllers {
                 if type(of: subViewController) == type(of: viewController) {
+                    if SideMenuManager.menuTabMode {
+                        navigationController.popToViewController(subViewController, animated: false)
+                        CATransaction.commit()
+                        return
+                    }
                     navigationController.popToViewController(subViewController, animated: animated)
                     CATransaction.commit()
                     return
@@ -154,10 +159,40 @@ open class UISideMenuNavigationController: UINavigationController {
             }
         }
         
+        if SideMenuManager.menuPreserveViewOnPush {
+            var viewControllers = navigationController.viewControllers
+            let filtered = viewControllers.filter{$0.restorationIdentifier == viewController.restorationIdentifier}
+            if let preservedView = filtered.first {
+                viewControllers = viewControllers.filter() { $0 !== preservedView }
+                viewControllers.append(preservedView)
+                if SideMenuManager.menuTabMode {
+                    navigationController.setViewControllers(viewControllers, animated: false)
+                    CATransaction.commit()
+                    return
+                }
+                navigationController.setViewControllers(viewControllers, animated: animated)
+                CATransaction.commit()
+                return
+            }
+            if SideMenuManager.menuTabMode {
+                navigationController.pushViewController(viewController, animated: false)
+                CATransaction.commit()
+                return
+            }
+            navigationController.pushViewController(viewController, animated: animated)
+            CATransaction.commit()
+            return
+        }
+        
         if SideMenuManager.menuReplaceOnPush {
             var viewControllers = navigationController.viewControllers
             viewControllers.removeLast()
             viewControllers.append(viewController)
+            if SideMenuManager.menuTabMode {
+                navigationController.setViewControllers(viewControllers, animated: false)
+                CATransaction.commit()
+                return
+            }
             navigationController.setViewControllers(viewControllers, animated: animated)
             CATransaction.commit()
             return
@@ -168,6 +203,12 @@ open class UISideMenuNavigationController: UINavigationController {
             return
         }
         
+        if SideMenuManager.menuTabMode {
+            navigationController.pushViewController(viewController, animated: false)
+            CATransaction.commit()
+            return
+        }
+        
         navigationController.pushViewController(viewController, animated: animated)
         CATransaction.commit()
     }

README.md

@@ -130,6 +130,12 @@ There are four modes in MenuPresentMode:
 */
 open static var menuPresentMode: MenuPresentMode = .viewSlideOut
 
+/// Retrieves each already created view controller to front when called. Requires class restoration identifiers. Defaults to false.
+open static var menuPreserveViewOnPush = false
+
+/// Mimics a tab function, by instantly presenting the view controller. Defaults to false.
+open static var menuTabMode = false
+
 /// Prevents the same view controller (or a view controller of the same class) from being pushed more than once. Defaults to true.
 open static var menuAllowPushOfSameClassTwice = true