yattee/Shared/Player/TapRecognizerViewModifier.swift

import SwiftUI

struct TapRecognizerViewModifier: ViewModifier {
    @State private var singleTapIsTaped: Bool = .init()

    var tapSensitivity: Double
    var singleTapAction: () -> Void
    var doubleTapAction: () -> Void
    var anyTapAction: () -> Void

    init(
        tapSensitivity: Double,
        singleTapAction: @escaping () -> Void,
        doubleTapAction: @escaping () -> Void,
        anyTapAction: @escaping () -> Void
    ) {
        self.tapSensitivity = tapSensitivity
        self.singleTapAction = singleTapAction
        self.doubleTapAction = doubleTapAction
        self.anyTapAction = anyTapAction
    }

    func body(content: Content) -> some View {
        content.gesture(simultaneouslyGesture)
    }

    private var singleTapGesture: some Gesture {
        TapGesture(count: 1).onEnded {
            anyTapAction()

            singleTapIsTaped = true

            DispatchQueue.main.asyncAfter(deadline: .now() + tapSensitivity) {
                if singleTapIsTaped {
                    singleTapAction()
                }
            }
        }
    }

    private var doubleTapGesture: some Gesture {
        TapGesture(count: 2).onEnded {
            singleTapIsTaped = false
            doubleTapAction()
        }
    }

    private var simultaneouslyGesture: some Gesture {
        singleTapGesture.simultaneously(with: doubleTapGesture)
    }
}

extension View {
    func tapRecognizer(
        tapSensitivity: Double,
        singleTapAction: @escaping () -> Void = {},
        doubleTapAction: @escaping () -> Void = {},
        anyTapAction: @escaping () -> Void = {}
    ) -> some View {
        modifier(
            TapRecognizerViewModifier(
                tapSensitivity: tapSensitivity,
                singleTapAction: singleTapAction,
                doubleTapAction: doubleTapAction,
                anyTapAction: anyTapAction
            )
        )
    }
}