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86 lines
2.7 KiB
Swift
86 lines
2.7 KiB
Swift
//
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// Copyright 2021 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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/// Used for mocking top level screens and their various states.
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@available(iOS 14.0, *)
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protocol MockScreenState {
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static var screenStates: [MockScreenState] { get }
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var screenType: Any.Type { get }
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var screenView: AnyView { get }
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var stateTitle: String { get }
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}
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@available(iOS 14.0, *)
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extension MockScreenState {
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/// Get a list of the screens for every screen state.
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static var screensViews: [AnyView] {
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screenStates.map(\.screenView)
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}
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/// A unique key to identify each screen state.
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static var screenStateKeys: [String] {
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return Array(0..<screenStates.count).map(String.init)
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}
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/// Render each of the screen states in a group applying
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/// any optional environment variables.
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/// - Parameters:
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/// - themeId: id of theme to render the screens with
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/// - locale: Locale to render the screens with
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/// - sizeCategory: type sizeCategory to render the screens with
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/// - Returns: The group of screens
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static func screenGroup(
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themeId: ThemeIdentifier = .light,
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locale: Locale = Locale.current,
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sizeCategory: ContentSizeCategory = ContentSizeCategory.medium,
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addNavigation: Bool = false
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) -> some View {
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Group {
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ForEach(0..<screensViews.count) { index in
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if addNavigation {
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NavigationView{
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screensViews[index]
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}
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} else {
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screensViews[index]
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}
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}
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}
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.theme(themeId)
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.environment(\.locale, locale)
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.environment(\.sizeCategory, sizeCategory)
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}
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/// A title to represent the screen and it's screen state
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var screenTitle: String {
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"\(String(describing: screenType.self)): \(stateTitle)"
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}
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/// A title to represent this screen state
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var stateTitle: String {
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String(describing: self)
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}
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}
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@available(iOS 14.0, *)
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extension MockScreenState where Self: CaseIterable {
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static var screenStates: [MockScreenState] {
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return Array(self.allCases)
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}
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}
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