element-ios/RiotSwiftUI/Modules/Authentication/QRLogin/Start/View/AuthenticationQRLoginStartS...

151 lines
5.1 KiB
Swift

//
// Copyright 2021-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.
//
import SwiftUI
/// The screen shown to a new user to select their use case for the app.
struct AuthenticationQRLoginStartScreen: View {
// MARK: - Properties
// MARK: Private
@Environment(\.theme) private var theme
@ScaledMetric private var iconSize = 70.0
// MARK: Public
@ObservedObject var context: AuthenticationQRLoginStartViewModel.Context
var body: some View {
GeometryReader { geometry in
VStack(alignment: .leading, spacing: 0) {
ScrollView {
titleContent
.padding(.top, OnboardingMetrics.topPaddingToNavigationBar)
stepsView
}
.readableFrame()
footerContent
.padding(.bottom, geometry.safeAreaInsets.bottom > 0 ? 20 : 36)
}
.padding(.horizontal, 16)
}
.background(theme.colors.background.ignoresSafeArea())
}
/// The screen's title and instructions.
var titleContent: some View {
VStack(spacing: 16) {
ZStack {
Circle()
.fill(theme.colors.accent)
Image(Asset.Images.camera.name)
.resizable()
.renderingMode(.template)
.foregroundColor(.white)
.aspectRatio(1.0, contentMode: .fit)
.padding(14)
}
.frame(width: iconSize, height: iconSize)
.padding(.bottom, 16)
Text(VectorL10n.authenticationQrLoginStartTitle)
.font(theme.fonts.title2B)
.multilineTextAlignment(.center)
.foregroundColor(theme.colors.primaryContent)
.accessibilityIdentifier("titleLabel")
Text(VectorL10n.authenticationQrLoginStartSubtitle)
.font(theme.fonts.body)
.multilineTextAlignment(.center)
.foregroundColor(theme.colors.secondaryContent)
.padding(.bottom, 24)
.accessibilityIdentifier("subtitleLabel")
}
}
/// The screen's footer.
var footerContent: some View {
VStack(spacing: 12) {
Button(action: scanQR) {
Text(VectorL10n.authenticationQrLoginStartTitle)
}
.buttonStyle(PrimaryActionButtonStyle(font: theme.fonts.bodySB))
.padding(.bottom, 8)
.accessibilityIdentifier("scanQRButton")
if context.viewState.canShowDisplayQRButton {
LabelledDivider(label: VectorL10n.authenticationQrLoginStartNeedAlternative)
Button(action: displayQR) {
Text(VectorL10n.authenticationQrLoginStartDisplayQr)
}
.buttonStyle(SecondaryActionButtonStyle(font: theme.fonts.bodySB))
.accessibilityIdentifier("displayQRButton")
}
}
}
/// The buttons used to select a use case for the app.
var stepsView: some View {
VStack(alignment: .leading, spacing: 12) {
ForEach(steps) { step in
HStack {
Text(String(step.id))
.font(theme.fonts.caption2SB)
.foregroundColor(theme.colors.accent)
.padding(6)
.shapedBorder(color: theme.colors.accent, borderWidth: 1, shape: Circle())
.offset(x: 1, y: 0)
Text(step.description)
.foregroundColor(theme.colors.primaryContent)
.font(theme.fonts.subheadline)
Spacer()
}
}
}
}
private let steps = [
QRLoginStartStep(id: 1, description: VectorL10n.authenticationQrLoginStartStep1),
QRLoginStartStep(id: 2, description: VectorL10n.authenticationQrLoginStartStep2),
QRLoginStartStep(id: 3, description: VectorL10n.authenticationQrLoginStartStep3),
QRLoginStartStep(id: 4, description: VectorL10n.authenticationQrLoginStartStep4)
]
/// Sends the `scanQR` view action.
func scanQR() {
context.send(viewAction: .scanQR)
}
/// Sends the `displayQR` view action.
func displayQR() {
context.send(viewAction: .displayQR)
}
}
// MARK: - Previews
struct AuthenticationQRLoginStart_Previews: PreviewProvider {
static let stateRenderer = MockAuthenticationQRLoginStartScreenState.stateRenderer
static var previews: some View {
stateRenderer.screenGroup(addNavigation: true)
.theme(.light).preferredColorScheme(.light)
.navigationViewStyle(.stack)
stateRenderer.screenGroup(addNavigation: true)
.theme(.dark).preferredColorScheme(.dark)
.navigationViewStyle(.stack)
}
}
private struct QRLoginStartStep: Identifiable {
let id: Int
let description: String
}