123 lines
4.2 KiB
Swift
123 lines
4.2 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import SwiftUI
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struct ServerSelectionScreen: View {
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// MARK: - Properties
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// MARK: Private
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@FocusState var isTextFieldFocused: Bool
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// MARK: Public
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@ObservedObject var context: ServerSelectionViewModel.Context
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// MARK: Views
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var body: some View {
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ScrollView {
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VStack(spacing: 0) {
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header
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.padding(.top, UIConstants.topPaddingToNavigationBar)
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.padding(.bottom, 36)
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serverForm
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}
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.readableFrame()
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.padding(.horizontal, 16)
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}
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.background(Color.element.background, ignoresSafeAreaEdges: .all)
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.toolbar { toolbar }
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.alert(item: $context.alertInfo) { $0.alert }
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}
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/// The title, message and icon at the top of the screen.
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var header: some View {
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VStack(spacing: 8) {
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AuthenticationIconImage(image: Asset.Images.serverSelectionIcon)
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.padding(.bottom, 8)
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Text(ElementL10n.serverSelectionTitle)
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.font(.element.title2B)
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.multilineTextAlignment(.center)
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.foregroundColor(.element.primaryContent)
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Text(ElementL10n.serverSelectionMessage)
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.font(.element.body)
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.multilineTextAlignment(.center)
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.foregroundColor(.element.secondaryContent)
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}
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}
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/// The text field and confirm button where the user enters a server URL.
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var serverForm: some View {
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VStack(alignment: .leading, spacing: 12) {
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TextField(ElementL10n.serverSelectionServerUrl, text: $context.homeserverAddress)
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.focused($isTextFieldFocused)
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.textFieldStyle(.elementInput(footerText: context.viewState.footerMessage,
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isError: context.viewState.isShowingFooterError))
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.keyboardType(.URL)
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.autocapitalization(.none)
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.disableAutocorrection(true)
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.onChange(of: context.homeserverAddress) { _ in context.send(viewAction: .clearFooterError) }
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.submitLabel(.done)
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.onSubmit(submit)
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.accessibilityIdentifier("addressTextField")
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Button(action: submit) {
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Text(context.viewState.buttonTitle)
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}
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.buttonStyle(.elementAction(.xLarge))
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.disabled(context.viewState.hasValidationError)
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.accessibilityIdentifier("confirmButton")
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}
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}
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@ToolbarContentBuilder
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var toolbar: some ToolbarContent {
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ToolbarItem(placement: .cancellationAction) {
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if context.viewState.hasModalPresentation {
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Button { context.send(viewAction: .dismiss) } label: {
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Text(ElementL10n.actionCancel)
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}
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.accessibilityIdentifier("dismissButton")
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}
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}
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}
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/// Sends the `confirm` view action so long as the text field input is valid.
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func submit() {
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guard !context.viewState.hasValidationError else { return }
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context.send(viewAction: .confirm)
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}
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}
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// MARK: - Previews
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struct ServerSelection_Previews: PreviewProvider {
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static var previews: some View {
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ForEach(MockServerSelectionScreenState.allCases, id: \.self) { state in
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NavigationView {
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ServerSelectionScreen(context: state.viewModel.context)
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.tint(.element.accent)
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}
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.navigationViewStyle(.stack)
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}
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}
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}
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