Update lottie-ios

submodules/lottie-ios/Sources/Private/RootAnimationLayer.swift

@@ -0,0 +1,51 @@
+// Created by Cal Stephens on 12/13/21.
+// Copyright © 2021 Airbnb Inc. All rights reserved.
+
+import QuartzCore
+
+// MARK: - RootAnimationLayer
+
+/// A root `CALayer` responsible for playing a Lottie animation
+protocol RootAnimationLayer: CALayer {
+  var currentFrame: AnimationFrameTime { get set }
+  var renderScale: CGFloat { get set }
+  var respectAnimationFrameRate: Bool { get set }
+
+  var _animationLayers: [CALayer] { get }
+  var imageProvider: AnimationImageProvider { get set }
+  var textProvider: AnimationTextProvider { get set }
+  var fontProvider: AnimationFontProvider { get set }
+
+  /// The `CAAnimation` key corresponding to the primary animation.
+  ///  - `AnimationView` uses this key to check if the animation is still active
+  var primaryAnimationKey: AnimationKey { get }
+
+  /// Whether or not this layer is currently playing an animation
+  ///  - If the layer returns `nil`, `AnimationView` determines if an animation
+  ///    is playing by checking if there is an active animation for `primaryAnimationKey`
+  var isAnimationPlaying: Bool? { get }
+
+  /// Instructs this layer to remove all `CAAnimation`s,
+  /// other than the `CAAnimation` managed by `AnimationView` (if applicable)
+  func removeAnimations()
+
+  func reloadImages()
+  func forceDisplayUpdate()
+  func logHierarchyKeypaths()
+
+  func setValueProvider(_ valueProvider: AnyValueProvider, keypath: AnimationKeypath)
+  func getValue(for keypath: AnimationKeypath, atFrame: AnimationFrameTime?) -> Any?
+  func getOriginalValue(for keypath: AnimationKeypath, atFrame: AnimationFrameTime?) -> Any?
+
+  func layer(for keypath: AnimationKeypath) -> CALayer?
+  func animatorNodes(for keypath: AnimationKeypath) -> [AnimatorNode]?
+}
+
+// MARK: - AnimationKey
+
+enum AnimationKey {
+  /// The primary animation and its key should be managed by `AnimationView`
+  case managed
+  /// The primary animation always uses the given key
+  case specific(String)
+}