230 lines
8.8 KiB
Swift
230 lines
8.8 KiB
Swift
//
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// BoardListView.swift
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// LifeGameApp
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//
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// Created by Yusuke Hosonuma on 2020/08/06.
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//
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import SwiftUI
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import LifeGame
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import Network
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struct BoardSelectView<Repository: FirestoreBoardRepositoryProtorol> : View {
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@EnvironmentObject var setting: SettingEnvironment
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@EnvironmentObject var network: NetworkMonitor
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@ObservedObject var repository: Repository // TODO: @EnvironmentObject で受け取れるようにできる❓
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@ObservedObject var historyRepository: FirebaseHistoryRepository
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@Binding var isPresented: Bool
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// MARK: Computed properties
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private var fileredItems: [BoardDocument] {
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repository.items
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.filter(when: setting.isFilterByStared) { $0.stared }
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}
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// Note:
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// 実機で2回目のレンダリング実行時に`NetworkMonitor`が見つからなくてクラッシュする不具合がある。（beta4時点）❗
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// 以下のような解決情報もあるが、現時点では仕様かどうかの見極めがつかないので一旦コメントアウト（実際、SettingEnvironment は問題ない）
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// https://qiita.com/usk2000/items/1f8038dedf633a31dd78
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// Note:
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// 既にプリセットが取得できている場合はオフラインでも何も表示しない。
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// if network.status != .satisfied && repository.items.isEmpty {
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// Text("Network is offline.")
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// .foregroundColor(.secondary)
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// .padding()
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// } else {
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// }
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// MARK: View
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var body: some View {
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NavigationView {
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Group {
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// Note:
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// Sectionでヘッダーを表示しようとするとレイアウトが壊れてしまう（beta4）❗
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// LazyVGrid と競合しているようだが、現時点では仕様かバグの判断がつかないため保留。
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//
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// ```
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// List {
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// Section(header: Text("History")) { ... }
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// Section(header: Text("All")) { ... }
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// }
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//
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ScrollView {
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VStack {
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// Note:
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// ここで`VStack`をもう一度利用しようとするとクラッシュする（beta4）❗
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header(title: "History")
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if historyRepository.items.isEmpty {
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Text("No hitories")
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.foregroundColor(.secondary)
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.padding()
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} else {
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ScrollView([.horizontal]) {
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LazyHStack(spacing: 16, pinnedViews: [.sectionHeaders]) {
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ForEach(historyRepository.items, id: \.id) { item in
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Button(action: { tapCell(item.board) }) {
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historyCell(item: item.board)
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}
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.contextMenu { // beta4 時点だとコンテンツ自体が半透明になって見づらくなる問題あり❗
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cellContextMenu(item: item.board)
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}
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}
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}
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.padding([.horizontal, .bottom])
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}
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}
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header(title: "All")
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LazyVGrid(columns: columns, pinnedViews: [.sectionHeaders]) {
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ForEach(fileredItems, id: \.id!) { item in
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Button(action: { tapCell(item) }) {
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BoardSelectCell(item: item, style: setting.boardSelectDisplayStyle)
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}
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.contextMenu { // beta4 時点だとコンテンツ自体が半透明になって見づらくなる問題あり❗
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cellContextMenu(item: item)
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}
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}
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}
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.padding([.horizontal])
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}
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}
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}
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.navigationBarTitle("Select board", displayMode: .inline)
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.navigationBarItems(leading: Button("Cancel", action: tapCancel),
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trailing: menu())
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}
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}
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private func header(title: String) -> some View {
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HStack {
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Text(title)
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Spacer()
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}
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.font(.headline)
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.padding([.top, .horizontal])
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}
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private func historyCell(item: BoardDocument) -> some View {
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VStack(alignment: .leading) {
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BoardThumbnailImage(board: item.makeBoard(), cacheKey: item.id)
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Text(item.title)
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.lineLimit(1)
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.truncationMode(.tail)
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}
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.font(.system(.caption, design: .monospaced))
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.frame(width: 80)
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}
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private var columns: [GridItem] {
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switch setting.boardSelectDisplayStyle {
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case .grid:
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return [
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GridItem(.adaptive(minimum: 100))
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]
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case .list:
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return [
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GridItem(spacing: 0)
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]
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}
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}
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private func menu() -> some View {
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Menu(content: {
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Picker(selection: $setting.boardSelectDisplayStyle, label: Text("Picker Name")) {
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ForEach(BoardSelectStyle.allCases, id: \.rawValue) { style in
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Label(style.text, systemImage: style.imageName)
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.tag(style)
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}
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}
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Divider()
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Toggle(isOn: $setting.isFilterByStared) {
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Label("Star only", systemImage: "star.fill")
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}
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}, label: {
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Image(systemName: "ellipsis.circle")
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})
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}
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private func cellContextMenu(item: BoardDocument) -> some View {
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Button(action: { toggleStared(item) }) {
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if item.stared {
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Text("お気に入り解除")
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Image(systemName: "star.slash")
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} else {
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Text("お気に入り")
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Image(systemName: "star")
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}
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}
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}
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// MARK: Actions
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private func toggleStared(_ document: BoardDocument) {
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var newDocument = document
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newDocument.stared.toggle()
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repository.update(newDocument)
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}
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private func tapCancel() {
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isPresented = false
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}
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private func tapCell(_ document: BoardDocument) {
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let historyDocument = HistoryDocument(boardReference: document.reference)
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historyRepository.add(historyDocument)
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let board = document.makeBoard()
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LifeGameContext.shared.setBoard(board) // TODO: refactor
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isPresented = false
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}
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}
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struct BoardSelectView_Previews: PreviewProvider {
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static var previews: some View {
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view(networkStatus: .satisfied, dataFetched: true, description: "Normal case.")
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view(networkStatus: .unsatisfied, dataFetched: false, description: "Data is not fetched and network is offline.")
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view(networkStatus: .satisfied, dataFetched: false, description: "Wait to fetch data.")
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}
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// Note:
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// Sheet style is not working in normal-preview (when live-preview is working) in beta4❗
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//
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// ```
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// EmptyView()
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// .sheet(isPresented: .constant(true)) {
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// BoardListView(isPresented: .constant(true), boardDocuments: boards)
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// }
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// ```
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static func view(networkStatus: NWPath.Status, dataFetched: Bool, description: String) -> some View {
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let repository = dataFetched ? DesigntimeFirestoreBoardRepository() : DesigntimeFirestoreBoardRepository(documents: [])
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return VStack {
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Text(description)
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.foregroundColor(.red)
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.font(.subheadline)
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.bold()
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.padding()
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HStack {
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BoardSelectView(repository: repository, historyRepository: .shared, isPresented: .constant(true))
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.environmentObject(SettingEnvironment.shared)
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.environmentObject(NetworkMonitor(mockStatus: networkStatus))
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.colorScheme(.dark) // preferredColorScheme だと期待どおりに動かない（beta 4）❗
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BoardSelectView(repository: repository, historyRepository: .shared, isPresented: .constant(true))
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.environmentObject(SettingEnvironment.shared)
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.environmentObject(NetworkMonitor(mockStatus: networkStatus))
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.colorScheme(.light)
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}
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}
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.previewLayout(.fixed(width: 800, height: 300))
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}
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}
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