Room user indicators

Signed-off-by: Andy Uhnak <andyuhnak@gmail.com>
2026-04-23 18:12:44 +02:00 · 2022-02-23 09:47:35 +00:00
parent 2bec561b1f
commit 3f82e61723
28 changed files with 458 additions and 329 deletions
@@ -0,0 +1,97 @@
+// 
+// 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 UIKit
+import CommonKit
+import MatrixSDK
+
+/// A presenter responsible for showing / hiding a toast view for loading spinners or success messages.
+/// It is managed by an `UserIndicator`, meaning the `present` and `dismiss` methods will be called when the parent `UserIndicator` starts or completes.
+class ToastViewPresenter: UserIndicatorViewPresentable {
+    struct Constants {
+        static let navigationBarPatting = CGFloat(10)
+    }
+    
+    private let viewState: ToastViewState
+    private weak var viewController: UIViewController?
+    private weak var view: UIView?
+    private var animator: UIViewPropertyAnimator?
+    
+    init(viewState: ToastViewState, presentingViewController: UIViewController) {
+        self.viewState = viewState
+        self.viewController = presentingViewController
+    }
+
+    func present() {
+        guard let viewController = viewController else {
+            return
+        }
+        
+        let view = RoundedToastView(viewState: viewState)
+        view.update(theme: ThemeService.shared().theme)
+        self.view = view
+        
+        view.translatesAutoresizingMaskIntoConstraints = false
+        if let navigation = viewController.topNavigationController {
+            navigation.view.addSubview(view)
+            NSLayoutConstraint.activate([
+                view.centerXAnchor.constraint(equalTo: navigation.view.centerXAnchor),
+                view.topAnchor.constraint(equalTo: navigation.navigationBar.safeAreaLayoutGuide.bottomAnchor, constant: -Constants.navigationBarPatting)
+            ])
+        } else {
+            viewController.view.addSubview(view)
+            NSLayoutConstraint.activate([
+                view.centerXAnchor.constraint(equalTo: viewController.view.centerXAnchor),
+                view.topAnchor.constraint(equalTo: viewController.view.topAnchor)
+            ])
+        }
+        
+        view.alpha = 0
+        view.transform = .init(translationX: 0, y: 5)
+        animator = UIViewPropertyAnimator(duration: 0.2, curve: .easeOut) {
+            view.alpha = 1
+            view.transform = .identity
+        }
+        animator?.startAnimation()
+    }
+    
+    func dismiss() {
+        guard let view = view, view.superview != nil else {
+            return
+        }
+        
+        animator?.stopAnimation(true)
+        animator = UIViewPropertyAnimator(duration: 0.2, curve: .easeIn) {
+            view.alpha = 0
+            view.transform = .init(translationX: 0, y: -5)
+        }
+        animator?.addCompletion { _ in
+            view.removeFromSuperview()
+        }
+        animator?.startAnimation()
+    }
+}
+
+private extension UIViewController {
+    var topNavigationController: UINavigationController? {
+        var controller: UINavigationController? = self as? UINavigationController ?? navigationController
+        while controller?.navigationController != nil {
+            controller = controller?.navigationController
+        }
+        return controller
+    }
+}