element-ios/RiotSwiftUI/Modules/Common/EffectsScene/EffectsView.swift

58 lines
1.4 KiB
Swift

//
// Copyright 2022-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.
//
import SceneKit
import SwiftUI
/// A SwiftUI wrapper around `SCNView`, that unlike `SceneView` allows the
/// scene to have a transparent background and be rendered on top of other views.
struct EffectsView: UIViewRepresentable {
// MARK: - Private
@Environment(\.theme) private var theme
// MARK: - Public
enum Effect {
/// A confetti drop effect from the top centre of the screen.
case confetti
/// No effect will be shown.
case none
}
/// The type of effects to be shown in the view.
var effect: Effect
// MARK: - Lifecycle
func makeUIView(context: Context) -> SCNView {
SCNView(frame: .zero)
}
func updateUIView(_ sceneView: SCNView, context: Context) {
sceneView.scene = makeScene()
sceneView.backgroundColor = .clear
}
// MARK: - Private
private func makeScene() -> EffectsScene? {
switch effect {
case .confetti:
return EffectsScene.confetti(with: theme)
case .none:
return nil
}
}
}
struct EffectsView_Previews: PreviewProvider {
static var previews: some View {
EffectsView(effect: .confetti)
}
}