Introduce ThreadsBetaCoordinator & open thread view directly after enabling threads

Riot/Modules/Threads/Beta/ThreadsBetaCoordinator.swift

@@ -0,0 +1,64 @@
+// File created from FlowTemplate
+// $ createRootCoordinator.sh Threads ThreadsBeta
+/*
+ Copyright 2021 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 ThreadsBetaCoordinator: NSObject, ThreadsBetaCoordinatorProtocol {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+        
+    private let threadId: String
+    private lazy var viewController: ThreadsBetaViewController = {
+        let result = ThreadsBetaViewController.instantiate()
+        result.didTapEnableButton = { [weak self] in
+            guard let self = self else { return }
+            self.delegate?.threadsBetaCoordinatorDidTapEnable(self)
+        }
+        result.didTapCancelButton = { [weak self] in
+            guard let self = self else { return }
+            self.delegate?.threadsBetaCoordinatorDidTapCancel(self)
+        }
+        return result
+    }()
+
+    // MARK: Public
+
+    // Must be used only internally
+    var childCoordinators: [Coordinator] = []
+    
+    weak var delegate: ThreadsBetaCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(threadId: String) {
+        self.threadId = threadId
+    }    
+    
+    // MARK: - Public
+    
+    func start() {
+        //  no-op. this is a static screen
+    }
+    
+    func toPresentable() -> UIViewController {
+        return viewController
+    }
+}

Riot/Modules/Threads/Beta/ThreadsBetaCoordinatorBridgePresenter.swift

@@ -0,0 +1,89 @@
+// File created from FlowTemplate
+// $ createRootCoordinator.sh Threads ThreadsBeta
+/*
+ Copyright 2021 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
+
+@objc protocol ThreadsBetaCoordinatorBridgePresenterDelegate {
+    func threadsBetaCoordinatorBridgePresenterDelegateDidTapEnable(_ coordinatorBridgePresenter: ThreadsBetaCoordinatorBridgePresenter)
+    func threadsBetaCoordinatorBridgePresenterDelegateDidTapCancel(_ coordinatorBridgePresenter: ThreadsBetaCoordinatorBridgePresenter)
+}
+
+/// ThreadsBetaCoordinatorBridgePresenter enables to start ThreadsBetaCoordinator 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 ThreadsBetaCoordinatorBridgePresenter: NSObject {
+    
+    // MARK: - Constants
+
+    // MARK: - Properties
+    
+    // MARK: Private
+
+    public let threadId: String
+    private let slidingModalPresenter = SlidingModalPresenter()
+    private var coordinator: ThreadsBetaCoordinator?
+    
+    // MARK: Public
+    
+    weak var delegate: ThreadsBetaCoordinatorBridgePresenterDelegate?
+    
+    // MARK: - Setup
+    
+    init(threadId: String) {
+        self.threadId = threadId
+        super.init()
+    }
+    
+    // MARK: - Public
+
+    func present(from viewController: UIViewController, animated: Bool) {
+        
+        let threadsBetaCoordinator = ThreadsBetaCoordinator(threadId: threadId)
+        threadsBetaCoordinator.delegate = self
+        guard let presentable = threadsBetaCoordinator.toPresentable() as? SlidingModalPresentable.ViewControllerType else {
+            MXLog.error("[ThreadsBetaCoordinatorBridgePresenter] Presentable is not 'SlidingModalPresentable'")
+            return
+        }
+        slidingModalPresenter.present(presentable,
+                                      from: viewController,
+                                      animated: animated,
+                                      options: .spanning,
+                                      completion: nil)
+        threadsBetaCoordinator.start()
+        
+        self.coordinator = threadsBetaCoordinator
+    }
+
+    func dismiss(animated: Bool, completion: (() -> Void)?) {
+        slidingModalPresenter.dismiss(animated: animated, completion: completion)
+    }
+}
+
+// MARK: - ThreadsBetaCoordinatorDelegate
+extension ThreadsBetaCoordinatorBridgePresenter: ThreadsBetaCoordinatorDelegate {
+    
+    func threadsBetaCoordinatorDidTapEnable(_ coordinator: ThreadsBetaCoordinatorProtocol) {
+        self.delegate?.threadsBetaCoordinatorBridgePresenterDelegateDidTapEnable(self)
+    }
+    
+    func threadsBetaCoordinatorDidTapCancel(_ coordinator: ThreadsBetaCoordinatorProtocol) {
+        self.delegate?.threadsBetaCoordinatorBridgePresenterDelegateDidTapCancel(self)
+    }
+}

Riot/Modules/Threads/Beta/ThreadsBetaCoordinatorProtocol.swift

@@ -0,0 +1,29 @@
+// File created from FlowTemplate
+// $ createRootCoordinator.sh Threads ThreadsBeta
+/*
+ Copyright 2021 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
+
+protocol ThreadsBetaCoordinatorDelegate: AnyObject {
+    func threadsBetaCoordinatorDidTapEnable(_ coordinator: ThreadsBetaCoordinatorProtocol)
+    func threadsBetaCoordinatorDidTapCancel(_ coordinator: ThreadsBetaCoordinatorProtocol)
+}
+
+/// `ThreadsBetaCoordinatorProtocol` is a protocol describing a Coordinator that handle xxxxxxx navigation flow.
+protocol ThreadsBetaCoordinatorProtocol: Coordinator, Presentable {
+    var delegate: ThreadsBetaCoordinatorDelegate? { get }
+}