270 lines
12 KiB
Swift
270 lines
12 KiB
Swift
import SwiftUI
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import UIKit
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/// The tab bar, a navigation stack per tab, the mini player and the Now Playing sheet.
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/// On an unfolded iPhone Duo Now Playing takes one side of the hinge, the stems and queue (or a tab)
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/// the other, and the tabs move to a rail on the right edge beside the status bar.
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struct RootView: View {
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@State private var ui = Ui(overlays: Overlays())
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/// Unfolded iPhone Duo: Now Playing on the left of the hinge instead of the right.
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@AppStorage("duoSwap") private var duoSwap = false
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private var g: AppGraph { .shared }
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var body: some View {
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let s = g.settings
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let p = Palette.of(s.theme, s.accent)
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DuoSplit(swap: duoSwap, showDeck: ui.deck, onSplit: { ui.setSplit($0) }) {
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TabView(selection: Binding(get: { ui.tab }, set: { ui.selectTab($0) })) {
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ForEach(Tab.layout(s.tabLayout), id: \.self) { t in
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NavigationStack(path: ui.path(t)) {
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root(t).miniPlayerRoom()
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.navigationDestination(for: Route.self) { destination($0).miniPlayerRoom() }
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}
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.modifier(FloatingMiniPlayer())
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.tabItem { Label(t.rawValue, systemImage: t.icon) }
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.tag(t)
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}
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}
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.modifier(GlassMiniPlayerHost())
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} deck: {
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NowPlayingDeck()
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} docked: {
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NowPlayingScreen(docked: true)
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} rail: {
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DuoRail(swap: $duoSwap)
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}
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.background(p.bg.ignoresSafeArea())
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.onChange(of: s.tabLayout) { _, _ in ui.ensureValidTab() }
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.fullScreenCover(isPresented: Binding(get: { ui.nowPlayingOpen }, set: { ui.nowPlayingOpen = $0 })) {
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NowPlayingScreen()
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.overlayHost(ui.overlays, level: 1)
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.environment(ui)
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.environment(\.palette, p)
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.preferredColorScheme(s.theme == .White ? .light : .dark)
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.tint(p.accent)
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}
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.overlayHost(ui.overlays, level: 0)
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.onChange(of: g.playback.message) { _, m in
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if let m { ui.overlays.hud(m.text, "info.circle") }
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}
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.environment(ui)
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.environment(\.palette, p)
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.preferredColorScheme(s.theme == .White ? .light : .dark)
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.tint(p.accent)
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}
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@ViewBuilder private func root(_ t: Tab) -> some View {
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switch t {
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case .Library: LibraryHome()
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case .Songs: SongsScreen()
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case .Albums: AlbumsScreen()
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case .Artists: ArtistsScreen()
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case .Genres: GenresScreen()
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case .Playlists: PlaylistsScreen()
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case .Search: SearchScreen()
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case .Downloads: DownloadsScreen()
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case .Settings: SettingsScreen()
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}
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}
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@ViewBuilder private func destination(_ r: Route) -> some View {
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switch r {
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case .Artists: ArtistsScreen()
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case .Albums: AlbumsScreen()
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case .Songs: SongsScreen()
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case .RecentlyAdded: SongsScreen(recent: true)
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case .Playlists: PlaylistsScreen()
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case .Genres: GenresScreen()
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case .Downloads: DownloadsScreen()
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case .DownloadQueue: DownloadQueueScreen()
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case .TabBar: TabBarScreen()
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case .WebRadio: WebRadioScreen()
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case .GenrePage(let g): GenreScreen(genre: g)
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case .Eq: EqScreen()
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case .EqFilters(let id): EqFiltersScreen(profileId: id)
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case .EqFilterPage(let id, let f): EqFilterPage(profileId: id, filterId: f)
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case .Servers: ServersScreen()
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case .ServerList: ServerListScreen()
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case .Server(let id): ServerScreen(id: id)
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case .StemServer: StemServerScreen()
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case .Quality: QualityScreen()
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case .Storage: StorageScreen()
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case .Appearance: AppearanceScreen()
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case .NowPlayingOptions: NowPlayingOptionsScreen()
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case .StemEditor: StemEditorScreen()
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case .About: AboutScreen()
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case .ArtistPage(let a): ArtistScreen(artist: a)
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case .AlbumPage(let a): AlbumScreen(album: a)
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case .PlaylistPage(let pl): PlaylistScreen(playlist: pl)
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case .StemPlaylistPage(let id): StemPlaylistScreen(id: id)
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}
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}
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}
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/// iOS 26.1 and up put the mini player in the tab bar's glass accessory; older ones float a card over each tab.
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private let glassAccessory: Bool = { if #available(iOS 26.1, *) { return true } else { return false } }()
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private struct GlassMiniPlayerHost: ViewModifier {
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@Environment(Ui.self) private var ui
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private var g: AppGraph { .shared }
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func body(content: Content) -> some View {
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if #available(iOS 26.1, *) {
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content
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.tabViewBottomAccessory(isEnabled: g.playback.current != nil && !ui.split) { MiniPlayer() }
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.tabBarMinimizeBehavior(.onScrollDown)
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} else {
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content
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}
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}
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}
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/// Floats over the screens; each screen leaves room for it so nothing ends up underneath.
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private struct FloatingMiniPlayer: ViewModifier {
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@Environment(Ui.self) private var ui
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private var g: AppGraph { .shared }
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func body(content: Content) -> some View {
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if glassAccessory || ui.split {
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content
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} else {
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content
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.overlay(alignment: .bottom) {
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if g.playback.current != nil { MiniPlayer().transition(.move(edge: .bottom).combined(with: .opacity)) }
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}
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.animation(.spring(duration: 0.35), value: g.playback.current != nil)
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}
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}
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}
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private struct MiniPlayerRoom: ViewModifier {
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@Environment(Ui.self) private var ui
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private var g: AppGraph { .shared }
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func body(content: Content) -> some View {
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content.safeAreaInset(edge: .bottom, spacing: 0) {
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if !glassAccessory && !ui.split && g.playback.current != nil { Color.clear.frame(height: 66) }
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}
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// Split, the rail stands in for the tab bar.
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.toolbar(ui.split ? .hidden : .automatic, for: .tabBar)
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}
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}
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private extension View {
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func miniPlayerRoom() -> some View { modifier(MiniPlayerRoom()) }
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}
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/// Splits the screen at the iPhone Duo's hinge (the system's division region). [library] (with
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/// [deck] over it while [showDeck]) goes on one side and [docked] on the other, left and right
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/// trading places with [swap]; [rail] runs down the right edge in the status bar's strip.
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/// Anywhere without a hinge it's just [library]. The library stays put in the view tree, so its
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/// tab and scroll state survive folding, unfolding and swapping.
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private struct DuoSplit<Library: View, Deck: View, Docked: View, Rail: View>: View {
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var swap: Bool
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var showDeck: Bool
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var onSplit: (Bool) -> Void
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@ViewBuilder var library: Library
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@ViewBuilder var deck: Deck
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@ViewBuilder var docked: Docked
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@ViewBuilder var rail: Rail
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private static var railWidth: CGFloat { 64 }
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var body: some View {
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GeometryReader { geo in
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let cut = Self.cut(geo)
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let inset = geo.safeAreaInsets.trailing
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// The rail lives in the status bar's strip; if that's too thin it borrows from the right pane.
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let steal = cut == nil ? 0 : max(0, Self.railWidth - inset)
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let flip = swap && cut?.vertical == true
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let layout = cut?.vertical == false ? AnyLayout(VStackLayout(spacing: cut?.gap ?? 0)) : AnyLayout(HStackLayout(spacing: cut?.gap ?? 0))
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layout {
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ZStack {
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library
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if cut != nil && showDeck { deck.transition(.opacity) }
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}
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.environment(\.layoutDirection, .leftToRight)
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.frame(width: cut.map { $0.vertical ? (flip ? $0.second - steal : $0.first) : geo.size.width - steal } ?? geo.size.width,
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height: cut.map { $0.vertical ? geo.size.height : $0.first } ?? geo.size.height)
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if let cut {
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docked
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.environment(\.layoutDirection, .leftToRight)
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.frame(width: cut.vertical ? (flip ? cut.first : cut.second - steal) : geo.size.width - steal,
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height: cut.vertical ? geo.size.height : cut.second)
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}
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}
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// Right-to-left lays the same two children out mirrored, so swapping doesn't rebuild either.
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.environment(\.layoutDirection, flip ? .rightToLeft : .leftToRight)
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.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
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.overlay(alignment: .topTrailing) {
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if cut != nil {
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rail.frame(width: max(inset, Self.railWidth), height: geo.size.height).offset(x: inset)
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}
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}
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.animation(.spring(duration: 0.4, bounce: 0.1), value: flip)
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.animation(.easeInOut(duration: 0.2), value: showDeck)
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.onChange(of: cut != nil, initial: true) { _, on in onSplit(on) }
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}
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}
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/// Where the hinge cuts the view: sizes of the two sides and the gap between them.
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private struct Cut { var vertical: Bool; var first: CGFloat; var gap: CGFloat; var second: CGFloat }
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private static func cut(_ geo: GeometryProxy) -> Cut? {
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let size = geo.size
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var c: Cut?
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// The hinge reports inactive while the phone lies flat, so ask for inactive regions too.
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if #available(iOS 27.1, *),
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let r = geo.reservedRegions(kind: .division, options: .includeInactive).first?.frame {
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let vertical = r.height >= r.width
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c = vertical
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? Cut(vertical: true, first: r.minX, gap: r.width, second: size.width - r.maxX)
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: Cut(vertical: false, first: r.minY, gap: r.height, second: size.height - r.maxY)
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} else if UIDevice.current.userInterfaceIdiom == .phone, size.width >= 760, size.height >= 560 {
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// No region reported: only an unfolded Duo gives an iPhone this much room both ways.
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// The hinge sits at the middle of the screen, not of the safe area, so place it from there.
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let screenW = (UIApplication.shared.connectedScenes.first as? UIWindowScene)?.screen.bounds.width
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let half = ((screenW ?? size.width) / 2 - geo.frame(in: .global).minX).rounded()
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c = Cut(vertical: true, first: half - 12, gap: 24, second: size.width - half - 12)
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}
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guard let c else { return nil }
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// A region that doesn't leave usable room on both sides isn't a hinge worth splitting at.
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return c.first > 200 && c.second > 200 ? c : nil
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}
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}
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/// The tab bar's stand-in on an unfolded iPhone Duo: Now Playing's stems and queue, the tabs, and
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/// a button that swaps which side of the hinge Now Playing sits on.
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private struct DuoRail: View {
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@Binding var swap: Bool
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@Environment(Ui.self) private var ui
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@Environment(\.palette) private var p
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var body: some View {
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VStack(spacing: 4) {
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Spacer(minLength: 48)
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item("Playing", "waveform", on: ui.deck) { ui.showDeck() }
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ForEach(ui.tabs, id: \.self) { t in
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item(t.rawValue, t.icon, on: !ui.deck && ui.tab == t) { ui.selectTab(t) }
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}
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Capsule().fill(p.label3.opacity(0.4)).frame(width: 24, height: 2).padding(.vertical, 8)
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item("Swap", "arrow.left.arrow.right", on: false) { swap.toggle() }
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Spacer(minLength: 48)
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}
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.frame(maxWidth: .infinity)
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}
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private func item(_ title: String, _ icon: String, on: Bool, _ action: @escaping () -> Void) -> some View {
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Button { withAnimation(.snappy(duration: 0.25)) { action() } } label: {
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VStack(spacing: 3) {
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Image(systemName: icon).font(.system(size: 19, weight: on ? .semibold : .regular)).frame(height: 24)
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Text(title).font(.system(size: 10, weight: .medium)).lineLimit(1).minimumScaleFactor(0.7)
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}
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.foregroundStyle(on ? p.accent : p.label2)
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.frame(width: 56, height: 52)
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.background(on ? p.accent.opacity(0.14) : .clear, in: RoundedRectangle(cornerRadius: 12, style: .continuous))
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.contentShape(Rectangle())
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}
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.buttonStyle(PressFade())
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.accessibilityLabel(title)
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.accessibilityAddTraits(on ? .isSelected : [])
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}
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}
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