improvement(docs): simplify navigation and share editor previews

apps/docs/app/[[...slug]]/page.tsx

@@ -1,13 +1,15 @@
 import type React from 'react'
+import { Children, cloneElement, isValidElement } from 'react'
 import { highlight } from 'fumadocs-core/highlight'
 import { findNeighbour } from 'fumadocs-core/page-tree'
 import type { ApiPageProps } from 'fumadocs-openapi/ui'
 import { createAPIPage } from 'fumadocs-openapi/ui'
 import { Pre } from 'fumadocs-ui/components/codeblock'
 import defaultMdxComponents from 'fumadocs-ui/mdx'
-import { DocsBody, DocsPage, DocsTitle } from 'fumadocs-ui/page'
+import { DocsBody, DocsPage } from 'fumadocs-ui/page'
 import { notFound } from 'next/navigation'
 import { PageFooter } from '@/components/docs-layout/page-footer'
+import { PageHeader } from '@/components/docs-layout/page-header'
 import { PageNavigationArrows } from '@/components/docs-layout/page-navigation-arrows'
 import { LLMCopyButton } from '@/components/page-actions'
 import { StructuredData } from '@/components/structured-data'
@@ -51,6 +53,24 @@ async function ApiCodeBlock({ lang, code }: { lang: string; code: string }) {
   )
 }
 
+interface ApiSlotElementProps extends React.HTMLAttributes<HTMLElement> {
+  items?: unknown[]
+}
+
+/** Labels Fumadocs auth selectors while retaining their selection state and content. */
+function labelAuthSelectors(node: React.ReactNode): React.ReactNode {
+  if (!isValidElement<ApiSlotElementProps>(node)) return node
+
+  const props = node.props
+  const children =
+    props.children === undefined ? undefined : Children.map(props.children, labelAuthSelectors)
+
+  if (Array.isArray(props.items)) {
+    return cloneElement(node, { 'aria-label': 'Authentication method' }, children)
+  }
+  return children === undefined ? node : cloneElement(node, undefined, children)
+}
+
 const APIPage = createAPIPage(openapi, {
   renderCodeBlock: (props) => <ApiCodeBlock {...props} />,
   playground: { enabled: false },
@@ -68,12 +88,14 @@ const APIPage = createAPIPage(openapi, {
   content: {
     renderOperationLayout: (slots) => {
       return (
-        <div className='flex @4xl:flex-row flex-col @4xl:items-start gap-x-6 gap-y-4'>
+        <div className='flex @4xl:flex-row flex-col @4xl:items-start gap-x-6 gap-y-4 [--badge-amber-text:#854d0e] [--badge-blue-text:#1e40af] [--badge-error-text:#991b1b] [--badge-orange-text:#9a3412] [--badge-success-text:#166534] dark:[--badge-amber-text:#fcd34d] dark:[--badge-blue-text:#93c5fd] dark:[--badge-error-text:#fca5a5] dark:[--badge-orange-text:#fdba74] dark:[--badge-success-text:#86efac] [&_button[aria-haspopup=dialog]]:min-h-6'>
           <div className='min-w-0 flex-1'>
             {slots.header}
             {slots.description}
             {slots.apiPlayground}
-            {slots.authSchemes && <div className='api-section-divider'>{slots.authSchemes}</div>}
+            {slots.authSchemes && (
+              <div className='api-section-divider'>{labelAuthSelectors(slots.authSchemes)}</div>
+            )}
             {slots.parameters}
             {slots.body && <div className='api-section-divider'>{slots.body}</div>}
             <ResponseSection>{slots.responses}</ResponseSection>
@@ -179,6 +201,8 @@ export default async function Page(props: { params: Promise<{ slug?: string[] }>
           breadcrumb={breadcrumbs}
         />
         <DocsPage
+          role='main'
+          tabIndex={-1}
           toc={data.toc.filter(isContentHeading)}
           breadcrumb={{
             enabled: false,
@@ -196,15 +220,12 @@ export default async function Page(props: { params: Promise<{ slug?: string[] }>
             component: footer,
           }}
         >
-          <div className='api-page-header relative mt-6 sm:mt-0'>
-            <div className='absolute top-1 right-0 flex items-center gap-2'>
-              <div className='hidden sm:flex'>
-                <LLMCopyButton content={apiPageContent} />
-              </div>
-              <PageNavigationArrows previous={neighbours?.previous} next={neighbours?.next} />
+          <PageHeader title={data.title} className='api-page-header'>
+            <div className='hidden sm:flex'>
+              <LLMCopyButton content={apiPageContent} />
             </div>
-            <DocsTitle className='mb-2'>{data.title}</DocsTitle>
-          </div>
+            <PageNavigationArrows previous={neighbours?.previous} next={neighbours?.next} />
+          </PageHeader>
           <DocsBody>
             <APIPage {...apiProps} />
           </DocsBody>
@@ -225,6 +246,8 @@ export default async function Page(props: { params: Promise<{ slug?: string[] }>
         breadcrumb={breadcrumbs}
       />
       <DocsPage
+        role='main'
+        tabIndex={-1}
         toc={data.toc.filter(isContentHeading)}
         full={data.full || isAcademy}
         breadcrumb={{
@@ -244,15 +267,12 @@ export default async function Page(props: { params: Promise<{ slug?: string[] }>
           component: footer,
         }}
       >
-        <div className='relative mt-6 sm:mt-0'>
-          <div className='absolute top-1 right-0 flex items-center gap-2'>
-            <div className='hidden sm:flex'>
-              <LLMCopyButton content={markdownContent} />
-            </div>
-            <PageNavigationArrows previous={neighbours?.previous} next={neighbours?.next} />
+        <PageHeader title={data.title}>
+          <div className='hidden sm:flex'>
+            <LLMCopyButton content={markdownContent} />
           </div>
-          <DocsTitle className='mb-2'>{data.title}</DocsTitle>
-        </div>
+          <PageNavigationArrows previous={neighbours?.previous} next={neighbours?.next} />
+        </PageHeader>
         <DocsBody>
           <MDX
             components={{

apps/docs/app/layout.tsx

@@ -1,14 +1,11 @@
 import type { ReactNode } from 'react'
 import { DocsLayout } from 'fumadocs-ui/layouts/docs'
+import { SidebarProvider, SidebarTrigger, useSidebar } from 'fumadocs-ui/layouts/docs/slots/sidebar'
 import { RootProvider } from 'fumadocs-ui/provider/next'
 import type { Viewport } from 'next'
 import { Inter } from 'next/font/google'
 import { ThemeProvider } from 'next-themes'
-import {
-  SidebarFolder,
-  SidebarItem,
-  SidebarSeparator,
-} from '@/components/docs-layout/sidebar-components'
+import { DocsSidebar } from '@/components/docs-layout/docs-sidebar'
 import { Footer } from '@/components/footer/footer'
 import { Navbar } from '@/components/navbar/navbar'
 import { SimWordmark } from '@/components/ui/sim-logo'
@@ -61,11 +58,22 @@ export default function RootLayout({ children }: { children: ReactNode }) {
           disableTransitionOnChange
         >
           <RootProvider theme={{ enabled: false }}>
+            <a
+              href='#nd-page'
+              className='sr-only focus:not-sr-only focus:fixed focus:top-3 focus:left-3 focus:z-[100] focus:rounded-lg focus:bg-[var(--bg)] focus:px-4 focus:py-2 focus:text-[var(--text-primary)]'
+            >
+              Skip to content
+            </a>
             <Navbar />
             <DocsLayout
               tree={source.pageTree}
               nav={{
-                title: <SimWordmark className='h-[18px]' />,
+                title: (
+                  <>
+                    <SimWordmark className='h-[18px]' />
+                    <span className='sr-only'>Sim documentation home</span>
+                  </>
+                ),
               }}
               sidebar={{
                 tabs: false,
@@ -74,14 +82,18 @@ export default function RootLayout({ children }: { children: ReactNode }) {
                 footer: null,
                 banner: null,
                 prefetch: false,
-                components: {
-                  Item: SidebarItem,
-                  Folder: SidebarFolder,
-                  Separator: SidebarSeparator,
+              }}
+              slots={{
+                sidebar: {
+                  provider: SidebarProvider,
+                  root: DocsSidebar,
+                  trigger: SidebarTrigger,
+                  useSidebar,
                 },
               }}
               containerProps={{
-                className: '!pt-0',
+                className:
+                  '!pt-0 [--text-muted:var(--text-secondary)] [--color-fd-muted-foreground:var(--text-secondary)]',
               }}
             >
               {children}

apps/docs/app/not-found.tsx

@@ -7,13 +7,13 @@ export const metadata = {
 
 export default function NotFound() {
   return (
-    <DocsPage>
+    <DocsPage role='main' tabIndex={-1}>
       <div className='flex min-h-[60vh] flex-col items-center justify-center px-4 py-24 text-center'>
         <div className='flex w-full max-w-[410px] flex-col items-center gap-3'>
           <h1 className='text-balance text-[40px] text-[var(--text-primary)] leading-[110%] tracking-[-0.02em]'>
             Page not found
           </h1>
-          <p className='text-[var(--text-muted)] text-lg'>
+          <p className='text-[var(--text-secondary)] text-lg'>
             The page you&apos;re looking for doesn&apos;t exist or has been moved.
           </p>
           <div className='mt-3 flex flex-wrap items-center justify-center gap-2'>

apps/docs/components/docs-layout/docs-sidebar.test.tsx

@@ -0,0 +1,119 @@
+/** @vitest-environment jsdom */
+import { act, type ComponentProps, createElement, type ReactNode } from 'react'
+import { createRoot, type Root } from 'react-dom/client'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+import { DocsSidebar } from '@/components/docs-layout/docs-sidebar'
+
+const state = vi.hoisted(() => ({ mobile: false, open: false, setOpen: vi.fn() }))
+vi.mock('fumadocs-core/utils/use-media-query', () => ({ useMediaQuery: () => state.mobile }))
+vi.mock('fumadocs-ui/components/sidebar/base', () => ({ useSidebar: () => state }))
+vi.mock('next/navigation', () => ({ usePathname: () => '/integrations/zendesk' }))
+vi.mock('fumadocs-ui/contexts/tree', () => ({
+  useTreeContext: () => ({
+    root: {
+      $id: 'docs',
+      children: [{ type: 'page', name: 'Zendesk', url: '/integrations/zendesk' }],
+    },
+  }),
+}))
+vi.mock('@/components/docs-layout/sidebar-components', () => ({
+  SidebarItem: ({ item }: { item: { name: string; url: string } }) =>
+    createElement('a', { href: item.url, 'aria-current': 'page' }, item.name),
+  SidebarFolder: ({ children }: { children: ReactNode }) => children,
+  SidebarSeparator: () => null,
+}))
+vi.mock('@sim/emcn', () => ({
+  cn: (...classes: string[]) => classes.join(' '),
+  Chip: ({ leftIcon: _icon, ...props }: ComponentProps<'button'> & { leftIcon?: unknown }) =>
+    createElement('button', props),
+  ChipLink: ({ onNavigate, ...props }: ComponentProps<'a'> & { onNavigate?: () => void }) =>
+    createElement('a', {
+      ...props,
+      onClick: (event) => {
+        event.preventDefault()
+        onNavigate?.()
+      },
+    }),
+  useScrollEdges: () => ({ top: false, bottom: false }),
+  scrollFadeAttributes: () => ({}),
+  scrollFadeClass: 'scroll-fade',
+}))
+vi.mock('@sim/emcn/icons', () => ({ X: () => null }))
+
+let container: HTMLDivElement
+let root: Root
+
+beforeEach(() => {
+  vi.stubGlobal('IS_REACT_ACT_ENVIRONMENT', true)
+  state.mobile = false
+  state.open = false
+  state.setOpen.mockClear()
+  HTMLDialogElement.prototype.showModal = function () {
+    this.open = true
+  }
+  HTMLDialogElement.prototype.close = function () {
+    this.open = false
+  }
+  container = document.createElement('div')
+  document.body.appendChild(container)
+  root = createRoot(container)
+})
+
+afterEach(() => {
+  act(() => root.unmount())
+  container.remove()
+  vi.restoreAllMocks()
+  vi.unstubAllGlobals()
+})
+
+function render() {
+  act(() => root.render(<DocsSidebar />))
+}
+
+describe('documentation sidebar surfaces', () => {
+  it('renders one desktop navigation tree', () => {
+    render()
+    expect(container.querySelectorAll('aside[aria-label="Documentation navigation"]')).toHaveLength(
+      1
+    )
+    expect(container.querySelectorAll('a[aria-current="page"]')).toHaveLength(1)
+    expect(container.querySelector('dialog')).toBeNull()
+  })
+
+  it('opens the mobile modal and synchronizes native dismissal', () => {
+    state.mobile = true
+    state.open = true
+    render()
+    const dialog = container.querySelector('dialog')!
+    expect(dialog.open).toBe(true)
+    expect(container.querySelector('aside')).toBeNull()
+    expect(container.querySelectorAll('a[aria-current="page"]')).toHaveLength(1)
+    act(() => dialog.dispatchEvent(new Event('close')))
+    expect(state.setOpen).toHaveBeenCalledWith(false)
+  })
+
+  it('clears mobile disclosure state when resizing to desktop', () => {
+    state.mobile = true
+    state.open = true
+    render()
+    state.mobile = false
+    render()
+    expect(container.querySelector('dialog')).toBeNull()
+    expect(state.setOpen).toHaveBeenCalledWith(false)
+  })
+
+  it('scrolls a deep selected row into view without scrolling the document', () => {
+    vi.spyOn(Element.prototype, 'getBoundingClientRect').mockImplementation(function (
+      this: Element
+    ) {
+      return DOMRect.fromRect(
+        this.hasAttribute('aria-current')
+          ? { x: 0, y: 800, width: 250, height: 30 }
+          : { x: 0, y: 0, width: 280, height: 600 }
+      )
+    })
+    render()
+    expect(container.querySelector('.scroll-fade')?.scrollTop).toBe(242)
+    expect(document.documentElement.scrollTop).toBe(0)
+  })
+})