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|
import SwiftUI
struct MullvadAlert: Identifiable {
enum AlertType {
case warning
case error
}
enum ActionType {
case danger
case normal
}
struct Action {
let type: MainButtonStyle.Style
let title: LocalizedStringKey
let identifier: AccessibilityIdentifier?
let handler: () async -> Void
}
let id = UUID()
let type: AlertType
let messages: [LocalizedStringKey]
let action: Action?
let dismissButtonTitle: LocalizedStringKey
}
struct AlertModifier: ViewModifier {
@Binding var alert: MullvadAlert?
@State var loading = false
func body(content: Content) -> some View {
content
.fullScreenCover(item: $alert) { alert in
alertView(for: alert)
}
.transaction {
$0.disablesAnimations = true
}
}
@ViewBuilder
private func alertView(for alert: MullvadAlert) -> some View {
VStack {
Spacer()
alertContent(for: alert)
Spacer()
}
.accessibilityElement(children: .contain)
.accessibilityIdentifier(.alertContainerView)
.padding()
.background(ClearBackgroundView())
}
@ViewBuilder
private func alertContent(for alert: MullvadAlert) -> some View {
VStack(spacing: 16) {
alertIcon(for: alert.type)
alertMessage(alert.messages)
VStack(spacing: 16) {
alertAction(for: alert.action)
alertAction(
for: MullvadAlert.Action(
type: .default,
title: alert.dismissButtonTitle,
identifier: nil,
handler: { self.alert = nil }
))
}
}
.padding()
.background(Color.mullvadBackground)
.cornerRadius(8)
}
@ViewBuilder
private func alertIcon(for type: MullvadAlert.AlertType) -> some View {
switch type {
case .error, .warning:
Image.mullvadIconAlert
.resizable()
.frame(width: 48, height: 48)
}
}
@ViewBuilder
private func alertMessage(_ messages: [LocalizedStringKey]) -> some View {
VStack {
ForEach(Array(messages.enumerated()), id: \.offset) { _, text in
HStack {
Text(text)
.font(.mullvadSmall)
.foregroundColor(.mullvadTextPrimary.opacity(0.6))
Spacer()
}
}
}
}
@ViewBuilder
private func alertAction(for action: MullvadAlert.Action?) -> some View {
if let action = action {
MainButton(
text: action.title,
style: action.type,
action: {
Task {
loading = true
await action.handler()
loading = false
}
}
)
.accessibilityIdentifier(action.identifier)
} else {
EmptyView()
}
}
}
extension View {
func mullvadAlert(item: Binding<MullvadAlert?>) -> some View {
modifier(AlertModifier(alert: item))
}
}
#Preview {
Text("Hello, World!")
.mullvadAlert(
item:
.constant(
.init(
type: .warning,
messages: ["Something needs to be done"],
action: .init(
type: .danger,
title: "Do it!",
identifier: nil,
handler: {}
),
dismissButtonTitle: "Cancel"
)
)
)
}
|
