Move code

submodules/TelegramUI/Components/Calls/CallScreen/Sources/Animation/AnimationManager.swift

@@ -0,0 +1,50 @@
+import Foundation
+import UIKit
+
+public final class ManagedAnimations {
+    private var displayLinkSubscription: SharedDisplayLink.Subscription?
+    
+    private var properties: [AnyAnimatedProperty] = []
+    
+    public var updated: (() -> Void)?
+    
+    public init() {
+    }
+    
+    public func add(property: AnyAnimatedProperty) {
+        self.properties.append(property)
+        property.didStartAnimation = { [weak self] in
+            guard let self else {
+                return
+            }
+            self.updateNeedAnimations()
+        }
+    }
+    
+    private func updateNeedAnimations() {
+        if self.displayLinkSubscription == nil {
+            self.displayLinkSubscription = SharedDisplayLink.shared.add { [weak self] in
+                guard let self else {
+                    return
+                }
+                self.update()
+            }
+        }
+    }
+    
+    private func update() {
+        var hasRunningAnimations = false
+        for property in self.properties {
+            property.update()
+            if property.hasRunningAnimation {
+                hasRunningAnimations = true
+            }
+        }
+        
+        if !hasRunningAnimations {
+            self.displayLinkSubscription = nil
+        }
+        
+        self.updated?()
+    }
+}