Room user indicators

Signed-off-by: Andy Uhnak <andyuhnak@gmail.com>
2026-04-21 00:52:43 +02:00 · 2022-02-23 09:47:35 +00:00
parent bbc33ed0cf
commit 4617b3ed69
28 changed files with 458 additions and 329 deletions
@@ -0,0 +1,78 @@
+// 
+// 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 CommonKit
+import UIKit
+
+/// A presenter responsible for showing / hiding a full-screen loading view that obscures (and thus disables) all other controls.
+/// It is managed by a `UserIndicator`, meaning the `present` and `dismiss` methods will be called when the parent `UserIndicator` starts or completes.
+class FullscreenLoadingViewPresenter: UserIndicatorViewPresentable {
+    private let label: String
+    private weak var viewController: UIViewController?
+    private weak var view: UIView?
+    private var animator: UIViewPropertyAnimator?
+    
+    init(label: String, presentingViewController: UIViewController) {
+        self.label = label
+        self.viewController = presentingViewController
+    }
+
+    func present() {
+        // Find the current top navigation controller
+        var presentingController: UIViewController? = viewController
+        while presentingController?.navigationController != nil {
+            presentingController = presentingController?.navigationController
+        }
+        guard let presentingController = presentingController else {
+            return
+        }
+        
+        let view = LabelledActivityIndicatorView(text: label)
+        view.update(theme: ThemeService.shared().theme)
+        self.view = view
+        
+        view.translatesAutoresizingMaskIntoConstraints = false
+        presentingController.view.addSubview(view)
+        NSLayoutConstraint.activate([
+            view.topAnchor.constraint(equalTo: presentingController.view.topAnchor),
+            view.bottomAnchor.constraint(equalTo: presentingController.view.bottomAnchor),
+            view.leadingAnchor.constraint(equalTo: presentingController.view.leadingAnchor),
+            view.trailingAnchor.constraint(equalTo: presentingController.view.trailingAnchor)
+        ])
+        
+        view.alpha = 0
+        animator = UIViewPropertyAnimator(duration: 0.2, curve: .easeOut) {
+            view.alpha = 1
+        }
+        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
+        }
+        animator?.addCompletion { _ in
+            view.removeFromSuperview()
+        }
+        animator?.startAnimation()
+    }
+}