Generic element call link support (#1643)

* Remove swift-url-routing and replace it with a custom implementation. It fails parsing the fragments in app.element.io links and it doesn't bring any value * Add handling for opening generic element call links * Add applinks support for call.element.io * Enable VoIP and Audio playback background modes
2026-11-03 16:10:20 +00:00 · 2023-09-07 12:06:18 +03:00
parent 90228374d1
commit 62b6cd598f
15 changed files with 298 additions and 146 deletions
@@ -0,0 +1,101 @@
+//
+// Copyright 2023 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 SwiftUI
+import WebKit
+
+struct GenericLinkCoordinatorParameters {
+    let url: URL
+}
+
+class GenericCallLinkCoordinator: CoordinatorProtocol {
+    private let parameters: GenericLinkCoordinatorParameters
+    
+    init(parameters: GenericLinkCoordinatorParameters) {
+        self.parameters = parameters
+    }
+    
+    func toPresentable() -> AnyView {
+        AnyView(
+            WebView(url: parameters.url)
+                .ignoresSafeArea(edges: .bottom)
+                .presentationDragIndicator(.visible)
+        )
+    }
+}
+
+private struct WebView: UIViewRepresentable {
+    let url: URL
+
+    func makeUIView(context: Context) -> WKWebView {
+        context.coordinator.webView
+    }
+
+    func makeCoordinator() -> Coordinator {
+        Coordinator(initialURL: url)
+    }
+
+    func updateUIView(_ webView: WKWebView, context: Context) {
+        webView.load(URLRequest(url: url))
+    }
+
+    @MainActor
+    class Coordinator: NSObject, WKUIDelegate, WKNavigationDelegate {
+        private let initialURL: URL
+        private(set) var webView: WKWebView!
+
+        init(initialURL: URL) {
+            self.initialURL = initialURL
+            super.init()
+            
+            let configuration = WKWebViewConfiguration()
+
+            configuration.allowsInlineMediaPlayback = true
+            configuration.allowsPictureInPictureMediaPlayback = true
+            
+            webView = WKWebView(frame: .zero, configuration: configuration)
+            webView.uiDelegate = self
+        }
+
+        // MARK: - WKUIDelegate
+        
+        func webView(_ webView: WKWebView, decideMediaCapturePermissionsFor origin: WKSecurityOrigin, initiatedBy frame: WKFrameInfo, type: WKMediaCaptureType) async -> WKPermissionDecision {
+            // Don't allow permissions for domains different than what the call was started on
+            guard origin.host == initialURL.host else {
+                return .deny
+            }
+            
+            return .grant
+        }
+        
+        // MARK: - WKNavigationDelegate
+        
+        func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction) async -> WKNavigationActionPolicy {
+            // Allow any content from the main URL.
+            if navigationAction.request.url?.host == initialURL.host {
+                return .allow
+            }
+            
+            // Additionally allow any embedded content such as captchas.
+            if let targetFrame = navigationAction.targetFrame, !targetFrame.isMainFrame {
+                return .allow
+            }
+            
+            // Otherwise the request is invalid.
+            return .cancel
+        }
+    }
+}