Hide toolbar account switchers where the sidebar already shows one

Yattee/Views/Components/DataContextSwitcherMenu.swift

@@ -256,6 +256,20 @@ enum DataContextSwitcherVisibility {
         guard let appEnvironment else { return false }
         return appEnvironment.settingsManager.showAccountPickers && showsSwitcher(in: appEnvironment)
     }
+
+    #if os(iOS)
+    /// The iOS toolbar menus: same rule again, minus the regular widths, where
+    /// the sidebar layout already pins the switcher in its bottom bar — a
+    /// toolbar button there would say the same thing twice, the way macOS
+    /// toolbars already leave it to the sidebar row.
+    @MainActor
+    static func showsToolbarPickers(
+        in appEnvironment: AppEnvironment?,
+        horizontalSizeClass: UserInterfaceSizeClass?
+    ) -> Bool {
+        horizontalSizeClass == .compact && showsPickers(in: appEnvironment)
+    }
+    #endif
 }
 
 // MARK: - Glyph

Yattee/Views/Home/HistoryListView.swift

@@ -9,6 +9,9 @@ import SwiftUI
 
 struct HistoryListView: View {
     @Environment(\.appEnvironment) private var appEnvironment
+    #if os(iOS)
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
+    #endif
     @Namespace private var sheetTransition
 
     /// One row, from whichever history the screen is reading.
@@ -331,10 +334,11 @@ struct HistoryListView: View {
                 ToolbarSpacer(.flexible, placement: .primaryAction)
             }
             #endif
-            // No switcher on macOS: the sidebar row is the one persistent
+            // No switcher wherever a sidebar shows one: the macOS sidebar row
-            // switcher surface there.
+            // and the iPad sidebar's bottom bar are the persistent switcher
+            // surfaces there, so the toolbar menu is compact-width-only.
             #if !os(macOS)
-            if DataContextSwitcherVisibility.showsPickers(in: appEnvironment) {
+            if DataContextSwitcherVisibility.showsToolbarPickers(in: appEnvironment, horizontalSizeClass: horizontalSizeClass) {
                 ToolbarItem(placement: viewOptionsPlacement) {
                     DataContextSwitcherMenu()
                 }

Yattee/Views/Home/HomeView.swift

@@ -9,6 +9,9 @@ import SwiftUI
 
 struct HomeView: View {
     @Environment(\.appEnvironment) private var appEnvironment
+    #if os(iOS)
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
+    #endif
     @Environment(\.scenePhase) private var scenePhase
     #if !os(tvOS) && !os(macOS)
     @Namespace private var sheetTransition
@@ -166,10 +169,11 @@ struct HomeView: View {
         .toolbarTitleDisplayMode(.inlineLarge)
         #endif
         .toolbar {
-            // No switcher on macOS: the sidebar row is the one persistent
+            // No switcher wherever a sidebar shows one: the macOS sidebar row
-            // switcher surface there.
+            // and the iPad sidebar's bottom bar are the persistent switcher
+            // surfaces there, so the toolbar menu is compact-width-only.
             #if !os(tvOS) && !os(macOS)
-            if DataContextSwitcherVisibility.showsPickers(in: appEnvironment) {
+            if DataContextSwitcherVisibility.showsToolbarPickers(in: appEnvironment, horizontalSizeClass: horizontalSizeClass) {
                 ToolbarItem(placement: .primaryAction) {
                     DataContextSwitcherMenu()
                 }

Yattee/Views/Home/PlaylistsListView.swift

@@ -9,6 +9,9 @@ import SwiftUI
 
 struct PlaylistsListView: View {
     @Environment(\.appEnvironment) private var appEnvironment
+    #if os(iOS)
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
+    #endif
     @Namespace private var sheetTransition
     @State private var localPlaylists: [LocalPlaylist] = []
     @State private var searchText = ""
@@ -229,10 +232,11 @@ struct PlaylistsListView: View {
                 ToolbarSpacer(.flexible, placement: .primaryAction)
             }
             #endif
-            // No switcher on macOS: the sidebar row is the one persistent
+            // No switcher wherever a sidebar shows one: the macOS sidebar row
-            // switcher surface there.
+            // and the iPad sidebar's bottom bar are the persistent switcher
+            // surfaces there, so the toolbar menu is compact-width-only.
             #if !os(macOS)
-            if DataContextSwitcherVisibility.showsPickers(in: appEnvironment) {
+            if DataContextSwitcherVisibility.showsToolbarPickers(in: appEnvironment, horizontalSizeClass: horizontalSizeClass) {
                 ToolbarItem(placement: viewOptionsPlacement) {
                     DataContextSwitcherMenu()
                 }

Yattee/Views/Subscriptions/SubscriptionsView.swift

@@ -492,10 +492,12 @@ struct SubscriptionsView: View {
                 .toolbarTitleDisplayMode(.inlineLarge)
                 #endif
                 .toolbar {
-                    // No switcher on macOS: the sidebar row is the one persistent
+                    // No switcher wherever a sidebar shows one: the macOS
-                    // switcher surface there.
+                    // sidebar row and the iPad sidebar's bottom bar are the
+                    // persistent switcher surfaces there, so the toolbar menu
+                    // is compact-width-only.
                     #if !os(macOS)
-                    if DataContextSwitcherVisibility.showsPickers(in: appEnvironment) {
+                    if DataContextSwitcherVisibility.showsToolbarPickers(in: appEnvironment, horizontalSizeClass: horizontalSizeClass) {
                         ToolbarItem(placement: viewOptionsPlacement) {
                             DataContextSwitcherMenu()
                         }