Repo created

iphone/Maps/Bookmarks/BookmarksCoordinator.swift

@@ -0,0 +1,85 @@
+import UIKit
+
+@objc class BookmarksCoordinator: NSObject {
+  enum BookmarksState {
+    case opened
+    case closed
+    case hidden(categoryId: MWMMarkGroupID)
+  }
+
+  private weak var navigationController: UINavigationController?
+  private weak var controlsManager: MWMMapViewControlsManager?
+  private weak var navigationManager: MWMNavigationDashboardManager?
+  private var bookmarksControllers: [UIViewController]?
+  private var state: BookmarksState = .closed {
+    didSet {
+      updateForState(newState: state)
+    }
+  }
+
+  @objc init(navigationController: UINavigationController,
+             controlsManager: MWMMapViewControlsManager,
+             navigationManager: MWMNavigationDashboardManager) {
+    self.navigationController = navigationController
+    self.controlsManager = controlsManager
+    self.navigationManager = navigationManager
+  }
+
+  @objc func open() {
+    state = .opened
+  }
+
+  @objc func close() {
+    state = .closed
+  }
+
+  @objc func goBack() {
+    switch state {
+    case .opened:
+      navigationController?.popViewController(animated: true)
+    case .hidden, .closed:
+      close()
+    }
+  }
+
+  @objc func hide(categoryId: MWMMarkGroupID) {
+    state = .hidden(categoryId: categoryId)
+  }
+
+  private func updateForState(newState: BookmarksState) {
+    guard let navigationController = navigationController else {
+      fatalError()
+    }
+
+    switch state {
+    case .opened:
+      guard let bookmarksControllers = bookmarksControllers else {
+        // Instead of BookmarksTabViewController
+        let bookmarks = BMCViewController(coordinator: self)
+        bookmarks.title = L("bookmarks_and_tracks")
+        navigationController.pushViewController(bookmarks, animated: true)
+        return
+      }
+      var controllers = navigationController.viewControllers
+      controllers.append(contentsOf: bookmarksControllers)
+      UIView.transition(with: self.navigationController!.view,
+                        duration: kDefaultAnimationDuration,
+                        options: [.curveEaseInOut, .transitionCrossDissolve],
+                        animations: {
+                          navigationController.setViewControllers(controllers, animated: false)
+      }, completion: nil)
+      FrameworkHelper.deactivateMapSelection()
+      self.bookmarksControllers = nil
+    case .closed:
+      navigationController.popToRootViewController(animated: true)
+      bookmarksControllers = nil
+    case .hidden(_):
+      UIView.transition(with: self.navigationController!.view,
+                        duration: kDefaultAnimationDuration,
+                        options: [.curveEaseInOut, .transitionCrossDissolve],
+                        animations: {
+                          self.bookmarksControllers = navigationController.popToRootViewController(animated: false)
+      }, completion: nil)
+    }
+  }
+}