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| 1 | +import SwiftUI |
| 2 | +import SwiftBoost |
| 3 | + |
| 4 | +extension View { |
| 5 | + |
| 6 | + public func higlight<S>(clipShape: S) -> some View where S : Shape { |
| 7 | + self.modifier(HiglightModifier(clipShape: clipShape)) |
| 8 | + } |
| 9 | +} |
| 10 | + |
| 11 | +struct HiglightModifier<S>: ViewModifier where S : Shape { |
| 12 | + |
| 13 | + @State private var isAnimatingHiglight = false |
| 14 | + @State private var isAnimatingScale = false |
| 15 | + |
| 16 | + private let clipShape: S |
| 17 | + |
| 18 | + private var higlightDuration: TimeInterval = 1 |
| 19 | + private var calmDuration: TimeInterval = 3 |
| 20 | + private var changeAppearanceDuration: TimeInterval = 0.26 |
| 21 | + |
| 22 | + private var blinkWidth: CGFloat { 18 } |
| 23 | + private var scale: CGFloat = 0.94 |
| 24 | + |
| 25 | + init(clipShape: S) { |
| 26 | + self.clipShape = clipShape |
| 27 | + } |
| 28 | + |
| 29 | + func body(content: Content) -> some View { |
| 30 | + content |
| 31 | + .overlay { |
| 32 | + GeometryReader { proxy in |
| 33 | + Rectangle() |
| 34 | + .blur(radius: 6) |
| 35 | + .vibrant(0.7) |
| 36 | + .frame(width: blinkWidth) |
| 37 | + .frame(height: proxy.size.height * 2) |
| 38 | + .rotationEffect(.degrees(45)) |
| 39 | + .position( |
| 40 | + x: isAnimatingHiglight ? (proxy.size.width + proxy.size.height) : (0 - proxy.size.height), |
| 41 | + y: proxy.size.height / 2 |
| 42 | + ) |
| 43 | + .clipShape(clipShape) |
| 44 | + .animation(isAnimatingHiglight ? .interpolatingSpring(duration: higlightDuration) : .none, value: isAnimatingHiglight) |
| 45 | + } |
| 46 | + } |
| 47 | + .scaleEffect(isAnimatingScale ? scale : 1) |
| 48 | + .animation(.interpolatingSpring(duration: changeAppearanceDuration), value: isAnimatingScale) |
| 49 | + .onAppear { |
| 50 | + run() |
| 51 | + } |
| 52 | + } |
| 53 | + |
| 54 | + private func run() { |
| 55 | + |
| 56 | + isAnimatingHiglight = true |
| 57 | + isAnimatingScale = true |
| 58 | + |
| 59 | + delay(higlightDuration / 2) { |
| 60 | + isAnimatingScale = false |
| 61 | + } |
| 62 | + |
| 63 | + delay(higlightDuration) { |
| 64 | + isAnimatingHiglight = false |
| 65 | + delay(calmDuration) { |
| 66 | + self.run() |
| 67 | + } |
| 68 | + } |
| 69 | + } |
| 70 | +} |
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