ios: sidebar swipe

ios/Packages/Sybil/Sources/Sybil/SybilPhoneShellView.swift

@@ -22,75 +22,60 @@ enum PhoneRoute: Hashable {
 
 struct SybilPhoneShellView: View {
     @Bindable var viewModel: SybilViewModel
-    @State private var path: [PhoneRoute] = []
+    @State private var route: PhoneRoute = .draftChat
     @Environment(\.scenePhase) private var scenePhase
     @State private var shouldRefreshOnForeground = false
     @State private var composerFocusRequest = 0
     @State private var phoneStackWidth: CGFloat = BackSwipeMetrics.referenceWidth
-    @State private var backSwipeOffset: CGFloat = 0
-    @State private var backSwipeCompletionOffset: CGFloat = 0
-    @State private var backSwipeIsActive = false
-    @State private var backSwipeIsCompleting = false
-    @State private var backSwipeHasLatched = false
+    @State private var isSidebarOverlayPresented = false
+    @State private var sidebarSwipeOffset: CGFloat = 0
+    @State private var sidebarSwipeIsActive = false
+    @State private var sidebarSwipeIsCompleting = false
+    @State private var sidebarSwipeHasLatched = false
+    @State private var sidebarHighlightSelection: SidebarSelection?
+    @State private var sidebarHighlightClearTask: Task<Void, Never>?
+    @State private var openingSelectionRequestID: UUID?
 
-    private var canRecognizeBackSwipe: Bool {
-        !path.isEmpty && !backSwipeIsCompleting
+    private var canRecognizeSidebarSwipe: Bool {
+        !isSidebarOverlayPresented && !sidebarSwipeIsCompleting
     }
 
-    private var backSwipeVisualOffset: CGFloat {
-        backSwipeOffset + backSwipeCompletionOffset
+    private var sidebarOverlayProgress: CGFloat {
+        if isSidebarOverlayPresented {
+            return 1
+        }
+
+        return SidebarOverlaySwipeMetrics.progress(
+            for: sidebarSwipeOffset,
+            width: phoneStackWidth
+        )
+    }
+
+    private var shouldRenderSidebarOverlay: Bool {
+        isSidebarOverlayPresented ||
+            sidebarSwipeIsActive ||
+            sidebarSwipeIsCompleting ||
+            sidebarOverlayProgress > 0.001
+    }
+
+    private var currentRouteSelection: SidebarSelection? {
+        switch route {
+        case let .chat(chatID):
+            return .chat(chatID)
+        case let .search(searchID):
+            return .search(searchID)
+        case .draftChat, .draftSearch, .settings:
+            return nil
+        }
+    }
+
+    private var highlightedSidebarSelection: SidebarSelection? {
+        sidebarHighlightSelection ?? currentRouteSelection
     }
 
     var body: some View {
         GeometryReader { proxy in
-            ZStack(alignment: .topLeading) {
-                SybilPhoneSidebarRoot(viewModel: viewModel, path: $path)
-                    .safeAreaInset(edge: .top, spacing: 0) {
-                        phoneRootTopBar
-                    }
-                    .zIndex(0)
-
-                if let route = path.last {
-                    SybilPhoneDestinationView(
-                        viewModel: viewModel,
-                        composerFocusRequest: $composerFocusRequest,
-                        route: route,
-                        onRequestBack: requestBack,
-                        onRequestNewChat: startNewChatFromDestination
-                    )
-                    .background(SybilTheme.background)
-                    .offset(x: backSwipeVisualOffset)
-                    .shadow(
-                        color: backSwipeVisualOffset > 0 ? Color.black.opacity(0.34) : Color.clear,
-                        radius: backSwipeVisualOffset > 0 ? 18 : 0,
-                        x: -8,
-                        y: 0
-                    )
-                    .transition(.move(edge: .trailing))
-                    .zIndex(1)
-                    .background {
-                        WorkspaceSwipePanInstaller(
-                            direction: .right,
-                            isEnabled: canRecognizeBackSwipe,
-                            onBegan: { width in
-                                beginBackSwipe(containerWidth: width)
-                            },
-                            onChanged: { translationX, width in
-                                updateBackSwipe(with: translationX, containerWidth: width)
-                            },
-                            onEnded: { translationX, width, velocityX, didFinish in
-                                finishBackSwipe(
-                                    translationX: translationX,
-                                    containerWidth: width,
-                                    velocityX: velocityX,
-                                    didFinish: didFinish
-                                )
-                            }
-                        )
-                        .frame(maxWidth: .infinity, maxHeight: .infinity)
-                    }
-                }
-            }
+            phoneStack(width: proxy.size.width)
             .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
             .onAppear {
                 updatePhoneStackWidth(proxy.size.width)
@@ -100,13 +85,8 @@ struct SybilPhoneShellView: View {
             }
         }
         .tint(SybilTheme.primary)
-        .animation(.easeOut(duration: 0.22), value: path.last)
-        .onChange(of: path) { _, nextPath in
-            guard nextPath.isEmpty else {
-                return
-            }
-            resetBackSwipe(animated: false)
-        }
+        .animation(.easeOut(duration: 0.22), value: route)
+        .animation(.easeOut(duration: 0.18), value: isSidebarOverlayPresented)
         .onChange(of: scenePhase) { _, nextPhase in
             switch nextPhase {
             case .background:
@@ -120,8 +100,8 @@ struct SybilPhoneShellView: View {
                 shouldRefreshOnForeground = false
                 Task {
                     await viewModel.refreshAfterAppBecameActive(
-                        refreshCollections: path.isEmpty,
-                        refreshSelection: !path.isEmpty && viewModel.hasRefreshableSelection
+                        refreshCollections: isSidebarOverlayPresented,
+                        refreshSelection: !isSidebarOverlayPresented && viewModel.hasRefreshableSelection
                     )
                 }
             case .inactive:
@@ -133,16 +113,117 @@ struct SybilPhoneShellView: View {
         }
     }
 
-    private var phoneRootTopBar: some View {
-        HStack {
+    private func phoneStack(width: CGFloat) -> some View {
+        ZStack(alignment: .topLeading) {
+            phoneWorkspaceLayer
+                .zIndex(0)
+
+            phoneSidebarOverlayLayer(width: width)
+                .zIndex(1)
+        }
+    }
+
+    private var phoneWorkspaceLayer: some View {
+        SybilPhoneDestinationView(
+            viewModel: viewModel,
+            composerFocusRequest: $composerFocusRequest,
+            route: route,
+            onRequestBack: { _ in showSidebarOverlay() },
+            onRequestNewChat: sidebarWorkspaceNewChatAction,
+            onShowSidebar: showSidebarOverlay
+        )
+        .background(SybilTheme.background)
+        .blur(radius: SidebarOverlaySwipeMetrics.workspaceBlurRadius(for: sidebarOverlayProgress))
+        .opacity(SidebarOverlaySwipeMetrics.workspaceOpacity(for: sidebarOverlayProgress))
+        .allowsHitTesting(!shouldRenderSidebarOverlay)
+        .background {
+            sidebarSwipeInstaller
+        }
+    }
+
+    private func phoneSidebarOverlayLayer(width: CGFloat) -> some View {
+        VStack(spacing: 0) {
+            phoneOverlayTopBar
+
+            SybilPhoneSidebarRoot(
+                viewModel: viewModel,
+                highlightedSelection: highlightedSidebarSelection,
+                onSelect: openSidebarSelection,
+                onRoute: showRouteAndClearSidebarHighlight
+            )
+        }
+        .opacity(sidebarOverlayProgress)
+        .blur(radius: SidebarOverlaySwipeMetrics.overlayBlurRadius(for: sidebarOverlayProgress))
+        .offset(x: SidebarOverlaySwipeMetrics.overlayOffset(for: sidebarOverlayProgress, width: width))
+        .allowsHitTesting(isSidebarOverlayPresented)
+        .accessibilityHidden(!isSidebarOverlayPresented)
+    }
+
+    private var sidebarSwipeInstaller: some View {
+        WorkspaceSwipePanInstaller(
+            direction: .right,
+            isEnabled: canRecognizeSidebarSwipe,
+            onBegan: { width in
+                beginSidebarSwipe(containerWidth: width)
+            },
+            onChanged: { translationX, width in
+                updateSidebarSwipe(with: translationX, containerWidth: width)
+            },
+            onEnded: { translationX, width, velocityX, didFinish in
+                finishSidebarSwipe(
+                    translationX: translationX,
+                    containerWidth: width,
+                    velocityX: velocityX,
+                    didFinish: didFinish
+                )
+            }
+        )
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
+    }
+
+    private var sidebarWorkspaceNewChatAction: (() -> Void)? {
+        guard !isSidebarOverlayPresented else {
+            return nil
+        }
+
+        return {
+            startNewChatFromDestination()
+        }
+    }
+
+    private var phoneOverlayTopBar: some View {
+        HStack(spacing: 12) {
             SybilWordmark(size: 21)
             Spacer()
+
+            Button {
+                hideSidebarOverlay()
+            } label: {
+                Image(systemName: "chevron.right.2")
+                    .font(.system(size: 21, weight: .bold))
+                    .foregroundStyle(SybilTheme.text)
+                    .frame(width: 54, height: 54)
+                    .background(
+                        Circle()
+                            .fill(.ultraThinMaterial)
+                            .overlay(
+                                Circle()
+                                    .fill(SybilTheme.surface.opacity(0.76))
+                            )
+                    )
+                    .overlay(
+                        Circle()
+                            .stroke(SybilTheme.border.opacity(0.64), lineWidth: 1)
+                    )
+            }
+            .buttonStyle(.plain)
+            .accessibilityLabel("Hide conversations")
         }
         .padding(.horizontal, 16)
         .padding(.top, 10)
         .padding(.bottom, 12)
         .background {
-            SybilTheme.panelGradient
+            SybilPhoneOverlayBlurBand(edge: .top)
                 .ignoresSafeArea(edges: .top)
         }
     }
@@ -151,62 +232,98 @@ struct SybilPhoneShellView: View {
         phoneStackWidth = max(width, 1)
     }
 
-    private func requestBack(animateNavigation: Bool = true) {
-        guard !path.isEmpty, !backSwipeIsCompleting else {
-            return
-        }
-
-        if animateNavigation {
-            Task {
-                await completeBackSwipe(containerWidth: phoneStackWidth, releaseVelocityX: 0)
-            }
-        } else {
-            popRoute(disablesAnimations: true)
-            resetBackSwipe(animated: false)
-        }
-    }
-
     private func startNewChatFromDestination() {
         viewModel.startNewChat()
         composerFocusRequest += 1
-        replaceTopRoute(with: .draftChat)
+        showRoute(.draftChat)
     }
 
-    private func replaceTopRoute(with route: PhoneRoute) {
-        if path.isEmpty {
+    private func showRoute(_ nextRoute: PhoneRoute) {
+        let update = {
+            route = nextRoute
+        }
+
+        if isSidebarOverlayPresented {
             withAnimation(.easeOut(duration: 0.22)) {
-                path = [route]
+                update()
+                isSidebarOverlayPresented = false
             }
         } else {
-            path[path.index(before: path.endIndex)] = route
+            update()
         }
+
+        resetSidebarSwipe(animated: false)
     }
 
-    private func popRoute(disablesAnimations: Bool) {
-        let pop = {
-            guard !path.isEmpty else {
+    private func showRouteAndClearSidebarHighlight(_ nextRoute: PhoneRoute) {
+        showRoute(nextRoute)
+        clearSidebarHighlight()
+    }
+
+    private func showSidebarOverlay() {
+        withAnimation(.easeOut(duration: 0.18)) {
+            isSidebarOverlayPresented = true
+        }
+        resetSidebarSwipe(animated: false)
+    }
+
+    private func hideSidebarOverlay() {
+        withAnimation(.easeOut(duration: 0.18)) {
+            isSidebarOverlayPresented = false
+        }
+        resetSidebarSwipe(animated: false)
+    }
+
+    private func openSidebarSelection(_ selection: SidebarSelection) {
+        if openingSelectionRequestID != nil, sidebarHighlightSelection == selection {
+            return
+        }
+
+        let requestID = UUID()
+        openingSelectionRequestID = requestID
+        setSidebarHighlight(selection)
+
+        Task {
+            await viewModel.selectForNavigation(selection)
+            guard openingSelectionRequestID == requestID else {
                 return
             }
-            _ = path.removeLast()
-        }
 
-        if disablesAnimations {
-            var transaction = Transaction()
-            transaction.disablesAnimations = true
-            withTransaction(transaction) {
-                pop()
-            }
-        } else {
-            withAnimation(.easeOut(duration: 0.22)) {
-                pop()
-            }
+            showRoute(PhoneRoute.from(selection: selection))
+            openingSelectionRequestID = nil
+            clearSidebarHighlight(selection, after: .milliseconds(260))
         }
     }
 
-    private func beginBackSwipe(containerWidth: CGFloat) {
+    private func setSidebarHighlight(_ selection: SidebarSelection) {
+        sidebarHighlightClearTask?.cancel()
+        sidebarHighlightSelection = selection
+    }
+
+    private func clearSidebarHighlight(_ selection: SidebarSelection, after delay: Duration) {
+        sidebarHighlightClearTask?.cancel()
+        sidebarHighlightClearTask = Task { @MainActor in
+            try? await Task.sleep(for: delay)
+            guard !Task.isCancelled,
+                  sidebarHighlightSelection == selection,
+                  openingSelectionRequestID == nil else {
+                return
+            }
+            sidebarHighlightSelection = nil
+        }
+    }
+
+    private func clearSidebarHighlight() {
+        sidebarHighlightClearTask?.cancel()
+        openingSelectionRequestID = nil
+        sidebarHighlightSelection = nil
+    }
+
+    private func beginSidebarSwipe(containerWidth: CGFloat) {
         let update = {
-            backSwipeIsActive = true
-            backSwipeHasLatched = false
+            phoneStackWidth = max(containerWidth, 1)
+            sidebarSwipeIsActive = true
+            sidebarSwipeHasLatched = false
         }
 
         var transaction = Transaction()
@@ -214,97 +331,79 @@ struct SybilPhoneShellView: View {
         withTransaction(transaction, update)
     }
 
-    private func updateBackSwipe(with rawTranslation: CGFloat, containerWidth: CGFloat) {
-        let nextOffset = BackSwipeMetrics.clampedOffset(for: rawTranslation, width: containerWidth)
-        let nextLatched = BackSwipeMetrics.isLatched(
+    private func updateSidebarSwipe(with rawTranslation: CGFloat, containerWidth: CGFloat) {
+        let nextOffset = SidebarOverlaySwipeMetrics.clampedOffset(for: rawTranslation, width: containerWidth)
+        let nextLatched = SidebarOverlaySwipeMetrics.isLatched(
             offset: nextOffset,
             width: containerWidth,
-            isCurrentlyLatched: backSwipeHasLatched
+            isCurrentlyLatched: sidebarSwipeHasLatched
         )
 
         var transaction = Transaction()
         transaction.disablesAnimations = true
         withTransaction(transaction) {
-            backSwipeOffset = nextOffset
-            backSwipeHasLatched = nextLatched
+            phoneStackWidth = max(containerWidth, 1)
+            sidebarSwipeOffset = nextOffset
+            sidebarSwipeHasLatched = nextLatched
         }
     }
 
-    private func finishBackSwipe(
+    private func finishSidebarSwipe(
         translationX: CGFloat,
         containerWidth: CGFloat,
         velocityX: CGFloat,
         didFinish: Bool
     ) {
-        guard backSwipeIsActive else {
-            resetBackSwipe(animated: false)
+        guard sidebarSwipeIsActive else {
+            resetSidebarSwipe(animated: false)
             return
         }
 
-        let finalOffset = BackSwipeMetrics.clampedOffset(for: translationX, width: containerWidth)
-        let finalLatched = BackSwipeMetrics.isLatched(
+        let finalOffset = SidebarOverlaySwipeMetrics.clampedOffset(for: translationX, width: containerWidth)
+        let finalLatched = SidebarOverlaySwipeMetrics.isLatched(
             offset: finalOffset,
             width: containerWidth,
-            isCurrentlyLatched: backSwipeHasLatched
+            isCurrentlyLatched: sidebarSwipeHasLatched
         )
-        updateBackSwipe(with: translationX, containerWidth: containerWidth)
+        updateSidebarSwipe(with: translationX, containerWidth: containerWidth)
 
-        if didFinish && BackSwipeMetrics.shouldComplete(
+        if didFinish && SidebarOverlaySwipeMetrics.shouldComplete(
             offset: finalOffset,
             velocityX: velocityX,
             width: containerWidth,
             isLatched: finalLatched
         ) {
-            Task {
-                await completeBackSwipe(containerWidth: containerWidth, releaseVelocityX: velocityX)
-            }
+            completeSidebarSwipe()
             return
         }
 
-        resetBackSwipe(animated: true, velocityX: velocityX)
+        resetSidebarSwipe(animated: true, velocityX: velocityX)
     }
 
-    @MainActor
-    private func completeBackSwipe(containerWidth: CGFloat, releaseVelocityX: CGFloat) async {
-        guard !path.isEmpty else {
-            resetBackSwipe(animated: false)
-            return
-        }
-        guard !backSwipeIsCompleting else {
+    private func completeSidebarSwipe() {
+        guard !sidebarSwipeIsCompleting else {
             return
         }
 
-        backSwipeIsCompleting = true
-        let targetOffset = BackSwipeMetrics.completionTargetOffset(for: containerWidth)
-
-        withAnimation(
-            BackSwipeMetrics.springAnimation(
-                currentOffset: backSwipeOffset,
-                targetOffset: targetOffset,
-                velocityX: releaseVelocityX
-            )
-        ) {
-            backSwipeCompletionOffset = targetOffset - backSwipeOffset
+        sidebarSwipeIsCompleting = true
+        withAnimation(.easeOut(duration: 0.18)) {
+            isSidebarOverlayPresented = true
         }
-
-        try? await Task.sleep(for: .milliseconds(BackSwipeMetrics.completionAnimationDelayMs))
-        popRoute(disablesAnimations: true)
-        resetBackSwipe(animated: false)
+        resetSidebarSwipe(animated: false)
     }
 
-    private func resetBackSwipe(animated: Bool, velocityX: CGFloat = 0) {
-        let currentOffset = backSwipeOffset + backSwipeCompletionOffset
+    private func resetSidebarSwipe(animated: Bool, velocityX: CGFloat = 0) {
+        let currentOffset = sidebarSwipeOffset
         let reset = {
-            backSwipeOffset = 0
-            backSwipeCompletionOffset = 0
-            backSwipeIsActive = false
-            backSwipeIsCompleting = false
-            backSwipeHasLatched = false
+            sidebarSwipeOffset = 0
+            sidebarSwipeIsActive = false
+            sidebarSwipeIsCompleting = false
+            sidebarSwipeHasLatched = false
         }
 
         if animated {
             withAnimation(
-                BackSwipeMetrics.springAnimation(
+                SidebarOverlaySwipeMetrics.springAnimation(
                     currentOffset: currentOffset,
                     targetOffset: 0,
                     velocityX: velocityX
@@ -318,31 +417,79 @@ struct SybilPhoneShellView: View {
     }
 }
 
-private struct SybilPhoneSidebarRoot: View {
-    @Bindable var viewModel: SybilViewModel
-    @Binding var path: [PhoneRoute]
-    @State private var openingSelection: SidebarSelection?
-    @State private var openingRequestID: UUID?
+private enum SidebarOverlaySwipeMetrics {
+    static func clampedOffset(for rawTranslation: CGFloat, width: CGFloat) -> CGFloat {
+        BackSwipeMetrics.clampedOffset(for: rawTranslation, width: width)
+    }
 
-    private var highlightedSelection: SidebarSelection? {
-        if let openingSelection {
-            return openingSelection
-        }
+    static func progress(for offset: CGFloat, width: CGFloat) -> CGFloat {
+        BackSwipeMetrics.progress(for: offset, width: width)
+    }
 
-        guard let route = path.last else {
-            return nil
-        }
+    static func isLatched(offset: CGFloat, width: CGFloat, isCurrentlyLatched: Bool = false) -> Bool {
+        BackSwipeMetrics.isLatched(offset: offset, width: width, isCurrentlyLatched: isCurrentlyLatched)
+    }
 
-        switch route {
-        case let .chat(chatID):
-            return .chat(chatID)
-        case let .search(searchID):
-            return .search(searchID)
-        case .draftChat, .draftSearch, .settings:
-            return nil
+    static func shouldComplete(offset: CGFloat, velocityX: CGFloat, width: CGFloat, isLatched: Bool) -> Bool {
+        BackSwipeMetrics.shouldComplete(offset: offset, velocityX: velocityX, width: width, isLatched: isLatched)
+    }
+
+    static func springAnimation(currentOffset: CGFloat, targetOffset: CGFloat, velocityX: CGFloat) -> Animation {
+        BackSwipeMetrics.springAnimation(currentOffset: currentOffset, targetOffset: targetOffset, velocityX: velocityX)
+    }
+
+    static func overlayOffset(for progress: CGFloat, width: CGFloat) -> CGFloat {
+        -(1 - min(max(progress, 0), 1)) * min(max(width * 0.18, 44), 76)
+    }
+
+    static func overlayBlurRadius(for progress: CGFloat) -> CGFloat {
+        (1 - min(max(progress, 0), 1)) * 18
+    }
+
+    static func workspaceBlurRadius(for progress: CGFloat) -> CGFloat {
+        min(max(progress, 0), 1) * 14
+    }
+
+    static func workspaceOpacity(for progress: CGFloat) -> CGFloat {
+        1 - (min(max(progress, 0), 1) * 0.22)
+    }
+}
+
+private struct SybilPhoneOverlayBlurBand: View {
+    var edge: VerticalEdge
+
+    var body: some View {
+        ZStack {
+            Rectangle()
+                .fill(.ultraThinMaterial)
+                .opacity(0.34)
+
+            Rectangle()
+                .fill(
+                    LinearGradient(
+                        colors: gradientColors,
+                        startPoint: edge == .top ? .top : .bottom,
+                        endPoint: edge == .top ? .bottom : .top
+                    )
+                )
         }
     }
 
+    private var gradientColors: [Color] {
+        [
+            Color.black.opacity(0.94),
+            SybilTheme.background.opacity(0.78),
+            Color.black.opacity(0)
+        ]
+    }
+}
+
+private struct SybilPhoneSidebarRoot: View {
+    @Bindable var viewModel: SybilViewModel
+    var highlightedSelection: SidebarSelection?
+    var onSelect: (SidebarSelection) -> Void
+    var onRoute: (PhoneRoute) -> Void
+
     var body: some View {
         VStack(spacing: 0) {
             if let errorMessage = viewModel.errorMessage {
@@ -357,64 +504,15 @@ private struct SybilPhoneSidebarRoot: View {
                     .overlay(SybilTheme.border)
             }
 
-            if viewModel.isLoadingCollections && viewModel.sidebarItems.isEmpty {
-                VStack(alignment: .leading, spacing: 8) {
-                    ProgressView()
-                        .tint(SybilTheme.primary)
-                    Text("Loading conversations…")
-                        .font(.sybil(.footnote))
-                        .foregroundStyle(SybilTheme.textMuted)
+            SybilSidebarItemList(
+                viewModel: viewModel,
+                isSelected: { item in
+                    highlightedSelection == item.selection
+                },
+                onSelect: { item in
+                    onSelect(item.selection)
                 }
-                .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
-                .padding(16)
-            } else if viewModel.sidebarItems.isEmpty {
-                VStack(spacing: 10) {
-                    Image(systemName: "message.badge")
-                        .font(.system(size: 20, weight: .medium))
-                        .foregroundStyle(SybilTheme.textMuted)
-                    Text("Start a chat or run your first search.")
-                        .font(.sybil(.footnote))
-                        .multilineTextAlignment(.center)
-                        .foregroundStyle(SybilTheme.textMuted)
-                }
-                .frame(maxWidth: .infinity, maxHeight: .infinity)
-                .padding(16)
-            } else {
-                ScrollView {
-                    LazyVStack(alignment: .leading, spacing: 0) {
-                        ForEach(viewModel.sidebarItems) { item in
-                            Button {
-                                open(item.selection)
-                            } label: {
-                                VStack(spacing: 0.0) {
-                                    SybilPhoneSidebarRow(item: item)
-                                    Divider()
-                                }
-                            }
-                            .buttonStyle(
-                                SybilPhoneSidebarRowButtonStyle(
-                                    isHighlighted: highlightedSelection == item.selection
-                                )
-                            )
-                            .contextMenu {
-                                Button(role: .destructive) {
-                                    Task {
-                                        await viewModel.deleteItem(item.selection)
-                                    }
-                                } label: {
-                                    Label("Delete", systemImage: "trash")
-                                }
-                            }
-                        }
-                    }
-                }
-                .refreshable {
-                    await viewModel.refreshVisibleContent(
-                        refreshCollections: true,
-                        refreshSelection: false
-                    )
-                }
-            }
+            )
         }
         .background(SybilTheme.panelGradient)
         .safeAreaInset(edge: .bottom, spacing: 0) {
@@ -429,22 +527,20 @@ private struct SybilPhoneSidebarRoot: View {
 
             HStack(spacing: 12) {
                 toolbarIconButton(systemImage: "gearshape", accessibilityLabel: "Settings") {
-                    clearOpeningSelection()
-                    showRoute(.settings)
+                    viewModel.openSettings()
+                    onRoute(.settings)
                 }
 
                 Spacer()
 
                 toolbarIconButton(systemImage: "magnifyingglass", accessibilityLabel: "New search") {
-                    clearOpeningSelection()
                     viewModel.startNewSearch()
-                    showRoute(.draftSearch)
+                    onRoute(.draftSearch)
                 }
 
                 toolbarIconButton(systemImage: "plus", accessibilityLabel: "New chat", isPrimary: true) {
-                    clearOpeningSelection()
                     viewModel.startNewChat()
-                    showRoute(.draftChat)
+                    onRoute(.draftChat)
                 }
             }
             .padding(.horizontal, 18)
@@ -480,121 +576,6 @@ private struct SybilPhoneSidebarRoot: View {
         .buttonStyle(.plain)
         .accessibilityLabel(accessibilityLabel)
     }
-
-    private func clearOpeningSelection() {
-        openingRequestID = nil
-        openingSelection = nil
-    }
-
-    private func showRoute(_ route: PhoneRoute) {
-        withAnimation(.easeOut(duration: 0.22)) {
-            path = [route]
-        }
-    }
-
-    private func open(_ selection: SidebarSelection) {
-        guard openingSelection != selection else {
-            return
-        }
-
-        let requestID = UUID()
-        openingRequestID = requestID
-        openingSelection = selection
-        Task {
-            await viewModel.selectForNavigation(selection)
-            guard openingRequestID == requestID else {
-                return
-            }
-            showRoute(PhoneRoute.from(selection: selection))
-            openingRequestID = nil
-            openingSelection = nil
-        }
-    }
-}
-
-private struct SybilPhoneSidebarRowIsActiveKey: EnvironmentKey {
-    static let defaultValue = false
-}
-
-private extension EnvironmentValues {
-    var sybilPhoneSidebarRowIsActive: Bool {
-        get { self[SybilPhoneSidebarRowIsActiveKey.self] }
-        set { self[SybilPhoneSidebarRowIsActiveKey.self] = newValue }
-    }
-}
-
-private struct SybilPhoneSidebarRowButtonStyle: ButtonStyle {
-    var isHighlighted: Bool
-
-    func makeBody(configuration: Configuration) -> some View {
-        configuration.label
-            .environment(\.sybilPhoneSidebarRowIsActive, isHighlighted || configuration.isPressed)
-    }
-}
-
-private struct SybilPhoneSidebarRow: View {
-    @Environment(\.sybilPhoneSidebarRowIsActive) private var isHighlighted
-    var item: SidebarItem
-
-    var body: some View {
-        let leadingWidth = 22.0
-        
-        VStack(alignment: .leading, spacing: 8) {
-            HStack(spacing: 8) {
-                Image(systemName: item.kind == .chat ? "message" : "globe")
-                    .font(.system(size: 12, weight: .semibold))
-                    .foregroundStyle(isHighlighted ? SybilTheme.accent : SybilTheme.textMuted)
-                    .frame(width: leadingWidth, height: leadingWidth)
-                    .background(
-                        Rectangle()
-                            .fill(isHighlighted ? SybilTheme.accent.opacity(0.12) : SybilTheme.surface.opacity(0.72))
-                            
-                    )
-
-                Text(item.title)
-                    .font(.sybil(.subheadline, weight: .semibold))
-                    .lineLimit(1)
-                    .layoutPriority(1)
-
-                Spacer(minLength: 8)
-
-                if item.isRunning {
-                    SybilSidebarActivityIndicator()
-                }
-            }
-
-            HStack(spacing: 8) {
-                Spacer()
-                    .frame(width: leadingWidth)
-
-                Text(item.updatedAt.sybilRelativeLabel)
-                    .font(.sybil(.caption2))
-                    .foregroundStyle(SybilTheme.textMuted)
-
-                if let initiated = item.initiatedLabel {
-                    Spacer(minLength: 0)
-                    Text(initiated)
-                        .font(.sybil(.caption2))
-                        .foregroundStyle(SybilTheme.textMuted.opacity(0.88))
-                        .lineLimit(1)
-                        .multilineTextAlignment(.trailing)
-                        .frame(maxWidth: .infinity, alignment: .trailing)
-                }
-            }
-        }
-        .foregroundStyle(SybilTheme.text)
-        .padding(18.0)
-        .frame(maxWidth: .infinity, alignment: .leading)
-        .background(
-            Rectangle()
-                .fill(
-                    isHighlighted
-                        ? SybilTheme.selectedRowGradient
-                        : LinearGradient(colors: [SybilTheme.surface.opacity(0.56), SybilTheme.surface.opacity(0.36)], startPoint: .topLeading, endPoint: .bottomTrailing)
-                )
-        )
-
-    }
 }
 
 private struct SybilPhoneDestinationView: View {
@@ -602,12 +583,15 @@ private struct SybilPhoneDestinationView: View {
     @Binding var composerFocusRequest: Int
     let route: PhoneRoute
     let onRequestBack: (_ animateNavigation: Bool) -> Void
-    let onRequestNewChat: () -> Void
+    let onRequestNewChat: (() -> Void)?
+    let onShowSidebar: () -> Void
 
     var body: some View {
         SybilWorkspaceView(
             viewModel: viewModel,
             composerFocusRequest: composerFocusRequest,
+            navigationLeadingControl: .showSidebar,
+            onShowSidebar: onShowSidebar,
             onRequestBack: onRequestBack,
             onRequestNewChat: onRequestNewChat
         )

ios/Packages/Sybil/Sources/Sybil/SybilSidebarView.swift

@@ -4,13 +4,6 @@ import SwiftUI
 struct SybilSidebarView: View {
     @Bindable var viewModel: SybilViewModel
 
-    private func iconName(for item: SidebarItem) -> String {
-        switch item.kind {
-        case .chat: return "message"
-        case .search: return "globe"
-        }
-    }
-
     private func isSelected(_ item: SidebarItem) -> Bool {
         viewModel.draftKind == nil && viewModel.selectedItem == item.selection
     }
@@ -57,112 +50,13 @@ struct SybilSidebarView: View {
                     .overlay(SybilTheme.border)
             }
 
-            if viewModel.isLoadingCollections && viewModel.sidebarItems.isEmpty {
-                VStack(alignment: .leading, spacing: 8) {
-                    ProgressView()
-                        .tint(SybilTheme.primary)
-                    Text("Loading conversations…")
-                        .font(.sybil(.footnote))
-                        .foregroundStyle(SybilTheme.textMuted)
+            SybilSidebarItemList(
+                viewModel: viewModel,
+                isSelected: isSelected,
+                onSelect: { item in
+                    viewModel.select(item.selection)
                 }
-                .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
-                .padding(16)
-            } else if viewModel.sidebarItems.isEmpty {
-                VStack(spacing: 10) {
-                    Image(systemName: "message.badge")
-                        .font(.system(size: 20, weight: .medium))
-                        .foregroundStyle(SybilTheme.textMuted)
-                    Text("Start a chat or run your first search.")
-                        .font(.sybil(.footnote))
-                        .multilineTextAlignment(.center)
-                        .foregroundStyle(SybilTheme.textMuted)
-                }
-                .frame(maxWidth: .infinity, maxHeight: .infinity)
-                .padding(16)
-            } else {
-                ScrollView {
-                    LazyVStack(alignment: .leading, spacing: 8) {
-                        ForEach(viewModel.sidebarItems) { item in
-                            Button {
-                                viewModel.select(item.selection)
-                            } label: {
-                                VStack(alignment: .leading, spacing: 6) {
-                                    HStack(spacing: 8) {
-                                        Image(systemName: iconName(for: item))
-                                            .font(.system(size: 12, weight: .semibold))
-                                            .foregroundStyle(isSelected(item) ? SybilTheme.accent : SybilTheme.textMuted)
-                                            .frame(width: 22, height: 22)
-                                            .background(
-                                                RoundedRectangle(cornerRadius: 7)
-                                                    .fill(isSelected(item) ? SybilTheme.accent.opacity(0.12) : SybilTheme.surface.opacity(0.72))
-                                                    .overlay(
-                                                        RoundedRectangle(cornerRadius: 7)
-                                                            .stroke(isSelected(item) ? SybilTheme.accent.opacity(0.36) : SybilTheme.border.opacity(0.72), lineWidth: 1)
-                                                    )
-                                            )
-
-                                        Text(item.title)
-                                            .font(.sybil(.subheadline, weight: .semibold))
-                                            .lineLimit(1)
-                                            .layoutPriority(1)
-
-                                        Spacer(minLength: 8)
-
-                                        if item.isRunning {
-                                            SybilSidebarActivityIndicator()
-                                        }
-                                    }
-
-                                    HStack(spacing: 8) {
-                                        Text(item.updatedAt.sybilRelativeLabel)
-                                            .font(.sybil(.caption2))
-                                            .foregroundStyle(SybilTheme.textMuted)
-
-                                        if let initiated = item.initiatedLabel {
-                                            Spacer(minLength: 0)
-                                            Text(initiated)
-                                                .font(.sybil(.caption2))
-                                                .foregroundStyle(SybilTheme.textMuted.opacity(0.88))
-                                                .lineLimit(1)
-                                                .multilineTextAlignment(.trailing)
-                                                .frame(maxWidth: .infinity, alignment: .trailing)
-                                        }
-                                    }
-                                }
-                                .foregroundStyle(SybilTheme.text)
-                                .padding(.horizontal, 12)
-                                .padding(.vertical, 10)
-                                .frame(maxWidth: .infinity, alignment: .leading)
-                                .background(
-                                    RoundedRectangle(cornerRadius: 12)
-                                        .fill(isSelected(item) ? SybilTheme.selectedRowGradient : LinearGradient(colors: [SybilTheme.surface.opacity(0.56), SybilTheme.surface.opacity(0.36)], startPoint: .topLeading, endPoint: .bottomTrailing))
-                                )
-                                .overlay(
-                                    RoundedRectangle(cornerRadius: 12)
-                                        .stroke(isSelected(item) ? SybilTheme.primary.opacity(0.55) : SybilTheme.border.opacity(0.72), lineWidth: 1)
-                                )
-                            }
-                            .buttonStyle(.plain)
-                            .contextMenu {
-                                Button(role: .destructive) {
-                                    Task {
-                                        await viewModel.deleteItem(item.selection)
-                                    }
-                                } label: {
-                                    Label("Delete", systemImage: "trash")
-                                }
-                            }
-                        }
-                    }
-                    .padding(10)
-                }
-                .refreshable {
-                    await viewModel.refreshVisibleContent(
-                        refreshCollections: true,
-                        refreshSelection: false
-                    )
-                }
-            }
+            )
 
         }
         .background(SybilTheme.panelGradient)
@@ -213,6 +107,142 @@ struct SybilSidebarView: View {
     }
 }
 
+struct SybilSidebarItemList: View {
+    @Bindable var viewModel: SybilViewModel
+    var isSelected: (SidebarItem) -> Bool
+    var onSelect: (SidebarItem) -> Void
+
+    var body: some View {
+        if viewModel.isLoadingCollections && viewModel.sidebarItems.isEmpty {
+            VStack(alignment: .leading, spacing: 8) {
+                ProgressView()
+                    .tint(SybilTheme.primary)
+                Text("Loading conversations…")
+                    .font(.sybil(.footnote))
+                    .foregroundStyle(SybilTheme.textMuted)
+            }
+            .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
+            .padding(16)
+        } else if viewModel.sidebarItems.isEmpty {
+            VStack(spacing: 10) {
+                Image(systemName: "message.badge")
+                    .font(.system(size: 20, weight: .medium))
+                    .foregroundStyle(SybilTheme.textMuted)
+                Text("Start a chat or run your first search.")
+                    .font(.sybil(.footnote))
+                    .multilineTextAlignment(.center)
+                    .foregroundStyle(SybilTheme.textMuted)
+            }
+            .frame(maxWidth: .infinity, maxHeight: .infinity)
+            .padding(16)
+        } else {
+            ScrollView {
+                LazyVStack(alignment: .leading, spacing: 8) {
+                    ForEach(viewModel.sidebarItems) { item in
+                        Button {
+                            onSelect(item)
+                        } label: {
+                            SybilSidebarRow(item: item, isSelected: isSelected(item))
+                        }
+                        .buttonStyle(.plain)
+                        .contextMenu {
+                            Button(role: .destructive) {
+                                Task {
+                                    await viewModel.deleteItem(item.selection)
+                                }
+                            } label: {
+                                Label("Delete", systemImage: "trash")
+                            }
+                        }
+                    }
+                }
+                .padding(10)
+            }
+            .refreshable {
+                await viewModel.refreshVisibleContent(
+                    refreshCollections: true,
+                    refreshSelection: false
+                )
+            }
+        }
+    }
+}
+
+struct SybilSidebarRow: View {
+    var item: SidebarItem
+    var isSelected: Bool
+
+    private var isHighlighted: Bool {
+        isSelected
+    }
+
+    private var iconName: String {
+        switch item.kind {
+        case .chat: return "message"
+        case .search: return "globe"
+        }
+    }
+
+    var body: some View {
+        VStack(alignment: .leading, spacing: 6) {
+            HStack(spacing: 8) {
+                Image(systemName: iconName)
+                    .font(.system(size: 12, weight: .semibold))
+                    .foregroundStyle(isHighlighted ? SybilTheme.accent : SybilTheme.textMuted)
+                    .frame(width: 22, height: 22)
+                    .background(
+                        RoundedRectangle(cornerRadius: 7)
+                            .fill(isHighlighted ? SybilTheme.accent.opacity(0.12) : SybilTheme.surface.opacity(0.72))
+                            .overlay(
+                                RoundedRectangle(cornerRadius: 7)
+                                    .stroke(isHighlighted ? SybilTheme.accent.opacity(0.36) : SybilTheme.border.opacity(0.72), lineWidth: 1)
+                            )
+                    )
+
+                Text(item.title)
+                    .font(.sybil(.subheadline, weight: .semibold))
+                    .lineLimit(1)
+                    .layoutPriority(1)
+
+                Spacer(minLength: 8)
+
+                if item.isRunning {
+                    SybilSidebarActivityIndicator()
+                }
+            }
+
+            HStack(spacing: 8) {
+                Text(item.updatedAt.sybilRelativeLabel)
+                    .font(.sybil(.caption2))
+                    .foregroundStyle(SybilTheme.textMuted)
+
+                if let initiated = item.initiatedLabel {
+                    Spacer(minLength: 0)
+                    Text(initiated)
+                        .font(.sybil(.caption2))
+                        .foregroundStyle(SybilTheme.textMuted.opacity(0.88))
+                        .lineLimit(1)
+                        .multilineTextAlignment(.trailing)
+                        .frame(maxWidth: .infinity, alignment: .trailing)
+                }
+            }
+        }
+        .foregroundStyle(SybilTheme.text)
+        .padding(.horizontal, 12)
+        .padding(.vertical, 10)
+        .frame(maxWidth: .infinity, alignment: .leading)
+        .background(
+            RoundedRectangle(cornerRadius: 12)
+                .fill(isHighlighted ? SybilTheme.selectedRowGradient : LinearGradient(colors: [SybilTheme.surface.opacity(0.56), SybilTheme.surface.opacity(0.36)], startPoint: .topLeading, endPoint: .bottomTrailing))
+        )
+        .overlay(
+            RoundedRectangle(cornerRadius: 12)
+                .stroke(isHighlighted ? SybilTheme.primary.opacity(0.55) : SybilTheme.border.opacity(0.72), lineWidth: 1)
+        )
+        .contentShape(RoundedRectangle(cornerRadius: 12))
+    }
+}
+
 struct SybilSidebarActivityIndicator: View {
     var body: some View {
         ProgressView()

ios/Packages/Sybil/Sources/Sybil/SybilWorkspaceView.swift

@@ -50,7 +50,7 @@ struct SybilWorkspaceView: View {
     }
 
     private var showsCustomWorkspaceNavigation: Bool {
-        usesCustomWorkspaceNavigation && (!isSettingsSelected || navigationLeadingControl == .back)
+        usesCustomWorkspaceNavigation && (!isSettingsSelected || navigationLeadingControl != .hidden)
     }
 
     private var transcriptScrollContextID: String {