Video call UI improvements

submodules/TelegramCallsUI/Sources/CallControllerToastNode.swift

@@ -0,0 +1,37 @@
+import Foundation
+import UIKit
+import Display
+import AsyncDisplayKit
+import SwiftSignalKit
+
+private let labelFont = Font.regular(17.0)
+
+final class CallControllerToastNode: ASDisplayNode {
+    struct Content: Equatable {
+        enum Image {
+            case cameraOff
+        }
+        
+        var image: Image
+        var text: String
+        
+        init(image: Image, text: String) {
+            self.image = image
+            self.text = text
+        }
+    }
+    
+    let effectView: UIVisualEffectView
+    
+    override init() {
+        self.effectView = UIVisualEffectView()
+        self.effectView.effect = UIBlurEffect(style: .light)
+        self.effectView.layer.cornerRadius = 16.0
+        self.effectView.clipsToBounds = true
+        self.effectView.isUserInteractionEnabled = false
+        
+        super.init()
+        
+        self.view.addSubview(self.effectView)
+    }
+}