128 lines
3.4 KiB
Swift
128 lines
3.4 KiB
Swift
//
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// AnimatedButton.swift
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// lottie-swift
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//
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// Created by Brandon Withrow on 2/4/19.
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//
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#if canImport(UIKit)
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import UIKit
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#elseif canImport(AppKit)
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import AppKit
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#endif
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// MARK: - AnimatedButton
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/// An interactive button that plays an animation when pressed.
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open class AnimatedButton: AnimatedControl {
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// MARK: Lifecycle
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public override init(
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animation: LottieAnimation?,
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configuration: LottieConfiguration = .shared)
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{
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super.init(animation: animation, configuration: configuration)
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#if canImport(UIKit)
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isAccessibilityElement = true
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#elseif canImport(AppKit)
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setAccessibilityElement(true)
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#endif
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}
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public override init() {
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super.init()
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#if canImport(UIKit)
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isAccessibilityElement = true
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#elseif canImport(AppKit)
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setAccessibilityElement(true)
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#endif
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}
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required public init?(coder aDecoder: NSCoder) {
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super.init(coder: aDecoder)
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#if canImport(UIKit)
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isAccessibilityElement = true
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#elseif canImport(AppKit)
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setAccessibilityElement(true)
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#endif
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}
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// MARK: Open
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#if canImport(UIKit)
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open override func beginTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
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let _ = super.beginTracking(touch, with: event)
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let touchEvent = UIControl.Event.touchDown
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if let playRange = rangesForEvents[touchEvent.id] {
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animationView.play(fromProgress: playRange.from, toProgress: playRange.to, loopMode: .playOnce)
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}
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return true
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}
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open override func endTracking(_ touch: UITouch?, with event: UIEvent?) {
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super.endTracking(touch, with: event)
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let touchEvent: UIControl.Event
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if let touch, bounds.contains(touch.location(in: self)) {
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touchEvent = UIControl.Event.touchUpInside
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performAction?()
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} else {
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touchEvent = UIControl.Event.touchUpOutside
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}
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if let playRange = rangesForEvents[touchEvent.id] {
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animationView.play(fromProgress: playRange.from, toProgress: playRange.to, loopMode: .playOnce)
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}
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}
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#elseif canImport(AppKit)
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open override func handle(_ event: LottieNSControlEvent) {
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super.handle(event)
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if let playRange = rangesForEvents[event.id] {
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animationView.play(fromProgress: playRange.from, toProgress: playRange.to, loopMode: .playOnce)
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}
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if event == .touchUpInside {
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performAction?()
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}
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}
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#endif
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// MARK: Public
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/// A closure that is called when the button is pressed / clicked
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public var performAction: (() -> Void)?
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#if canImport(UIKit)
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public override var accessibilityTraits: UIAccessibilityTraits {
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set { super.accessibilityTraits = newValue }
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get { super.accessibilityTraits.union(.button) }
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}
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#endif
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/// Sets the play range for the given UIControlEvent.
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public func setPlayRange(fromProgress: AnimationProgressTime, toProgress: AnimationProgressTime, event: LottieControlEvent) {
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rangesForEvents[event.id] = (from: fromProgress, to: toProgress)
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}
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/// Sets the play range for the given UIControlEvent.
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public func setPlayRange(fromMarker fromName: String, toMarker toName: String, event: LottieControlEvent) {
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if
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let start = animationView.progressTime(forMarker: fromName),
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let end = animationView.progressTime(forMarker: toName)
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{
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rangesForEvents[event.id] = (from: start, to: end)
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}
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}
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// MARK: Private
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private var rangesForEvents: [AnyHashable: (from: CGFloat, to: CGFloat)] = [LottieControlEvent.touchUpInside.id: (
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from: 0,
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to: 1)]
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}
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