Device Verification: boilerplate for the start screen

Riot/Modules/DeviceVerification/DeviceVerificationCoordinator.swift

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+// File created from FlowTemplate
+// $ createRootCoordinator.sh DeviceVerification DeviceVerification DeviceVerificationStart
+/*
+ Copyright 2019 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+@objcMembers
+final class DeviceVerificationCoordinator: DeviceVerificationCoordinatorType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let navigationRouter: NavigationRouterType
+    private let session: MXSession
+    
+    // MARK: Public
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    
+    weak var delegate: DeviceVerificationCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession) {
+        self.navigationRouter = NavigationRouter(navigationController: RiotNavigationController())
+        self.session = session
+    }    
+    
+    // MARK: - Public methods
+    
+    func start() {
+
+        let rootCoordinator = self.createDeviceVerificationStartCoordinator()
+
+        rootCoordinator.start()
+
+        self.add(childCoordinator: rootCoordinator)
+
+        self.navigationRouter.setRootModule(rootCoordinator)
+      }
+    
+    func toPresentable() -> UIViewController {
+        return self.navigationRouter.toPresentable()
+    }
+    
+    // MARK: - Private methods
+
+    private func createDeviceVerificationStartCoordinator() -> DeviceVerificationStartCoordinator {
+        let coordinator = DeviceVerificationStartCoordinator(session: self.session)
+        coordinator.delegate = self
+        return coordinator
+    }
+}
+
+// MARK: - DeviceVerificationStartCoordinatorDelegate
+extension DeviceVerificationCoordinator: DeviceVerificationStartCoordinatorDelegate {
+    func deviceVerificationStartCoordinator(_ coordinator: DeviceVerificationStartCoordinatorType, didCompleteWithMessage message: String) {
+        self.delegate?.deviceVerificationCoordinatorDidComplete(self)
+    }
+
+    func deviceVerificationStartCoordinatorDidCancel(_ coordinator: DeviceVerificationStartCoordinatorType) {
+        self.delegate?.deviceVerificationCoordinatorDidComplete(self)
+    }
+}