yattee/Shared/Navigation/AppTabNavigation.swift
2023-02-28 21:27:47 +01:00

210 lines
6.7 KiB
Swift

import Defaults
import SwiftUI
struct AppTabNavigation: View {
@ObservedObject private var accounts = AccountsModel.shared
@ObservedObject private var navigation = NavigationModel.shared
private var player = PlayerModel.shared
@ObservedObject private var feed = FeedModel.shared
@ObservedObject private var subscriptions = SubscribedChannelsModel.shared
@ObservedObject private var feedCount = UnwatchedFeedCountModel.shared
@Default(.showHome) private var showHome
@Default(.showDocuments) private var showDocuments
@Default(.showOpenActionsToolbarItem) private var showOpenActionsToolbarItem
@Default(.visibleSections) private var visibleSections
@Default(.showUnwatchedFeedBadges) private var showUnwatchedFeedBadges
let persistenceController = PersistenceController.shared
var body: some View {
TabView(selection: navigation.tabSelectionBinding) {
Group {
if showHome {
homeNavigationView
}
if showDocuments {
documentsNavigationView
}
if !accounts.isEmpty {
if subscriptionsVisible {
subscriptionsNavigationView
}
if visibleSections.contains(.popular), accounts.app.supportsPopular, visibleSections.count < 5 {
popularNavigationView
}
if visibleSections.contains(.trending) {
trendingNavigationView
}
if playlistsVisible {
playlistsNavigationView
}
searchNavigationView
}
}
.modifier(PlayerOverlayModifier())
}
.onAppear {
feed.calculateUnwatchedFeed()
}
.onChange(of: accounts.current) { _ in
feed.calculateUnwatchedFeed()
}
.id(accounts.current?.id ?? "")
.overlay(playlistView)
.overlay(channelView)
.environment(\.navigationStyle, .tab)
}
private var homeNavigationView: some View {
NavigationView {
LazyView(HomeView())
.toolbar { toolbarContent }
}
.tabItem {
Label("Home", systemImage: "house.fill")
.accessibility(label: Text("Home"))
}
.tag(TabSelection.home)
}
private var documentsNavigationView: some View {
NavigationView {
LazyView(DocumentsView())
.toolbar { toolbarContent }
}
.tabItem {
Label("Documents", systemImage: "folder")
.accessibility(label: Text("Documents"))
}
.tag(TabSelection.documents)
}
private var subscriptionsNavigationView: some View {
NavigationView {
LazyView(SubscriptionsView())
}
.tabItem {
Label("Subscriptions", systemImage: "star.circle.fill")
.accessibility(label: Text("Subscriptions"))
}
.tag(TabSelection.subscriptions)
.backport
.badge(showUnwatchedFeedBadges ? feedCount.unwatchedText : nil)
}
private var subscriptionsVisible: Bool {
visibleSections.contains(.subscriptions) &&
accounts.app.supportsSubscriptions && !(accounts.current?.anonymous ?? true)
}
private var playlistsVisible: Bool {
visibleSections.contains(.playlists) &&
accounts.app.supportsUserPlaylists && !(accounts.current?.anonymous ?? true)
}
private var popularNavigationView: some View {
NavigationView {
LazyView(PopularView())
.toolbar { toolbarContent }
}
.tabItem {
Label("Popular", systemImage: "arrow.up.right.circle.fill")
.accessibility(label: Text("Popular"))
}
.tag(TabSelection.popular)
}
private var trendingNavigationView: some View {
NavigationView {
LazyView(TrendingView())
}
.tabItem {
Label("Trending", systemImage: "chart.bar.fill")
.accessibility(label: Text("Trending"))
}
.tag(TabSelection.trending)
}
private var playlistsNavigationView: some View {
NavigationView {
LazyView(PlaylistsView())
}
.tabItem {
Label("Playlists", systemImage: "list.and.film")
.accessibility(label: Text("Playlists"))
}
.tag(TabSelection.playlists)
}
private var searchNavigationView: some View {
NavigationView {
LazyView(SearchView())
}
.tabItem {
Label("Search", systemImage: "magnifyingglass")
.accessibility(label: Text("Search"))
}
.tag(TabSelection.search)
}
var toolbarContent: some ToolbarContent {
#if os(iOS)
Group {
ToolbarItemGroup(placement: .navigationBarLeading) {
Button(action: { navigation.presentingSettings = true }) {
Image(systemName: "gearshape.2")
}
}
ToolbarItemGroup(placement: .navigationBarTrailing) {
if showOpenActionsToolbarItem {
Button(action: { navigation.presentingOpenVideos = true }) {
Label("Open Videos", systemImage: "play.circle.fill")
}
}
AccountViewButton()
}
}
#endif
}
@ViewBuilder private var channelView: some View {
if navigation.presentingChannel {
NavigationView {
ChannelVideosView(showCloseButton: true)
}
.environment(\.managedObjectContext, persistenceController.container.viewContext)
.environment(\.inChannelView, true)
.environment(\.navigationStyle, .tab)
.id("channelVideos")
.zIndex(player.presentingPlayer ? -1 : 2)
.transition(.move(edge: .bottom))
}
}
@ViewBuilder private var playlistView: some View {
if navigation.presentingPlaylist {
NavigationView {
ChannelPlaylistView(showCloseButton: true)
}
.environment(\.managedObjectContext, persistenceController.container.viewContext)
.id("channelPlaylist")
.zIndex(player.presentingPlayer ? -1 : 1)
.transition(.move(edge: .bottom))
}
}
}
struct AppTabNavigation_Preview: PreviewProvider {
static var previews: some View {
AppTabNavigation()
}
}