becbcc84e1
* Automatic discovery of the sliding sync proxy. * Handle homeserver detection from a MXID. * Update sliding sync info link, SDK and bump patch. Add a migration on the new version. The change in restoration token format requires the user to sign in again, but this will fail with the existing device ID.
109 lines
4.0 KiB
Swift
109 lines
4.0 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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/// A type that describes an alert to be shown to the user.
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///
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/// The alert info can be added to the view state bindings and used as an alert's `item`:
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/// ```
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/// MyView
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/// .alert(item: $viewModel.alertInfo) { $0.alert }
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/// ```
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struct AlertInfo<T: Hashable>: Identifiable {
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/// An identifier that can be used to distinguish one error from another.
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let id: T
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/// The alert's title.
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let title: String
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/// The alert's message (optional).
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var message: String?
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/// The alert's primary button title and action. Defaults to an Ok button with no action.
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var primaryButton = AlertButton(title: ElementL10n.ok, action: nil)
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/// The alert's secondary button title and action.
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var secondaryButton: AlertButton?
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}
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struct AlertButton {
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let title: String
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var role: Role = .default
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let action: (() -> Void)?
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enum Role {
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case `default`, cancel, destructive
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}
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}
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extension AlertInfo {
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/// Initialises the type with the title from an `Error`'s localised description along with the default Ok button.
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///
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/// Currently this initialiser creates an alert for every error, however in the future it may be updated to filter
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/// out some specific errors such as cancellation and networking issues that create too much noise or are
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/// indicated to the user using other mechanisms.
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init(error: Error) where T == String {
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self.init(id: error.localizedDescription,
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title: error.localizedDescription)
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}
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/// Initialises the type with a generic title and message for an unknown error along with the default Ok button.
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/// - Parameters:
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/// - id: An ID that identifies the error.
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/// - error: The Error that occurred.
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init(id: T) {
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self.id = id
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title = ElementL10n.dialogTitleError
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message = ElementL10n.unknownError
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}
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}
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extension AlertInfo {
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private var messageText: Text? {
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guard let message else { return nil }
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return Text(message)
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}
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/// Returns a SwiftUI `Alert` created from this alert info, using default button
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/// styles for both primary and (if set) secondary buttons.
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var alert: Alert {
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if let secondaryButton {
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return Alert(title: Text(title),
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message: messageText,
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primaryButton: alertButton(for: primaryButton),
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secondaryButton: alertButton(for: secondaryButton))
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} else {
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return Alert(title: Text(title),
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message: messageText,
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dismissButton: alertButton(for: primaryButton))
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}
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}
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private func alertButton(for buttonParameters: AlertButton) -> Alert.Button {
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switch (buttonParameters.role, buttonParameters.action) {
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case (.default, nil):
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return .default(Text(buttonParameters.title))
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case (.default, let action):
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return .default(Text(buttonParameters.title), action: action)
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case (.cancel, nil):
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return .cancel(Text(buttonParameters.title))
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case (.cancel, let action):
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return .cancel(Text(buttonParameters.title), action: action)
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case (.destructive, nil):
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return .destructive(Text(buttonParameters.title))
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case (.destructive, let action):
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return .destructive(Text(buttonParameters.title), action: action)
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}
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}
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}
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