Device manager: Create UserSessionsFlowCoordinator that handles the user sessions screen flow.

RiotSwiftUI/Modules/UserSessions/UserSessionsFlow/Coordinator/UserSessionsFlowCoordinator.swift

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+// 
+// Copyright 2022 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 CommonKit
+
+struct UserSessionsFlowCoordinatorParameters {
+    let session: MXSession
+    let router: NavigationRouterType?
+}
+
+final class UserSessionsFlowCoordinator: Coordinator, Presentable {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let parameters: UserSessionsFlowCoordinatorParameters
+    private let navigationRouter: NavigationRouterType
+    
+    // MARK: Public
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    var completion: (() -> Void)?
+    
+    // MARK: - Setup
+    
+    init(parameters: UserSessionsFlowCoordinatorParameters) {
+        self.parameters = parameters
+        
+        self.navigationRouter = parameters.router ?? NavigationRouter(navigationController: RiotNavigationController())
+    }
+    
+    // MARK: - Public
+    
+    func start() {
+        MXLog.debug("[UserSessionsFlowCoordinator] did start.")
+        
+        let rootCoordinatorParameters = UserSessionsOverviewCoordinatorParameters(session: self.parameters.session)
+        
+        let rootCoordinator = UserSessionsOverviewCoordinator(parameters: rootCoordinatorParameters)
+        
+        rootCoordinator.start()
+
+        self.add(childCoordinator: rootCoordinator)
+
+        if self.navigationRouter.modules.isEmpty == false {
+            self.navigationRouter.push(rootCoordinator, animated: true, popCompletion: { [weak self] in
+                self?.remove(childCoordinator: rootCoordinator)
+                self?.completion?()
+            })
+        } else {
+            self.navigationRouter.setRootModule(rootCoordinator) { [weak self] in
+                self?.remove(childCoordinator: rootCoordinator)
+                self?.completion?()
+            }
+        }
+    }
+    
+    func toPresentable() -> UIViewController {
+        return self.navigationRouter.toPresentable()
+    }
+}

RiotSwiftUI/Modules/UserSessions/UserSessionsFlow/Coordinator/UserSessionsFlowCoordinatorBridgePresenter.swift

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+/*
+ Copyright 2022 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 Foundation
+import MatrixSDK
+import UIKit
+
+/// UserSessionsFlowCoordinatorBridgePresenter enables to start UserSessionsFlowCoordinator from a view controller.
+/// This bridge is used while waiting for global usage of coordinator pattern.
+/// **WARNING**: This class breaks the Coordinator abstraction and it has been introduced for **Objective-C compatibility only** (mainly for integration in legacy view controllers).
+/// Each bridge should be removed once the underlying Coordinator has been integrated by another Coordinator.
+@objcMembers
+final class UserSessionsFlowCoordinatorBridgePresenter: NSObject {
+    
+    // MARK: - Constants
+
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    private let mxSession: MXSession
+    private var coordinator: UserSessionsFlowCoordinator?
+    
+    // MARK: Public
+    
+    var completion: (() -> Void)?
+    
+    // MARK: - Setup
+    
+    init(mxSession: MXSession) {
+        self.mxSession = mxSession
+        super.init()
+    }
+    
+    // MARK: - Public
+
+    func push(from navigationController: UINavigationController, animated: Bool) {
+        
+        self.startUserSessionsFlow(mxSession: self.mxSession, navigationController: navigationController)
+    }
+    
+    // MARK: - Private
+    
+    private func startUserSessionsFlow(mxSession: MXSession, navigationController: UINavigationController?) {
+        
+        var navigationRouter: NavigationRouterType?
+        
+        if let navigationController = navigationController {
+            navigationRouter = NavigationRouterStore.shared.navigationRouter(for: navigationController)
+        }
+        
+        let coordinatorParameters = UserSessionsFlowCoordinatorParameters(session: mxSession, router: navigationRouter)
+        
+        let userSessionsFlowCoordinator = UserSessionsFlowCoordinator(parameters: coordinatorParameters)        
+        
+        userSessionsFlowCoordinator.completion = { [weak self] in
+            
+            guard let self = self else {
+                return
+            }
+            
+            self.completion?()
+            self.coordinator = nil
+        }
+        
+        userSessionsFlowCoordinator.start()
+        
+        self.coordinator = userSessionsFlowCoordinator
+    }
+}