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