Accessibility Patterns

This project builds on shadcn/ui primitives which provide strong built-in a11y. Follow these patterns to maintain that standard.

ARIA Labels

All interactive elements without visible text must have an aria-label:

<Button variant="ghost" aria-label="Home">
  <Icon name="Home" />
</Button>

<div role="button" aria-expanded={isOpen} aria-label={`Folder: ${folder.name}`}>

Form Accessibility

Link inputs to labels and error messages:

<Input
  id={id}
  aria-invalid={!!error}
  aria-describedby={`${id}-hint`}
/>
{!!error && <Text tone="critical">{error.join("\n")}</Text>}
<div id={`${id}-hint`}>{hint}</div>

Use the shadcn/ui Label component for proper form associations.

Keyboard Navigation

Required keyboard support for custom interactive elements:

• Enter/Space: Activate buttons and toggles
• Escape: Close dialogs, cancel editing, deselect
• Tab: Move focus between interactive elements

The Input component has built-in onEnter and onEscape props:

<Input onEnter={save} onEscape={cancel} />

Everything else handles the keys itself:

onKeyDown={(e) => {
  if (e.key === "Enter" && !e.shiftKey) {
    e.preventDefault();
    save();
  } else if (e.key === "Escape") {
    e.preventDefault();
    cancel();
  }
}

Non-button clickable elements need role="button" and tabIndex={0}:

<div role="button" tabIndex={0} title="Click to edit">
  {content}
</div>

Dialogs must prevent keyboard shortcuts from leaking to the canvas:

The dialog component already handles this — use preventKeyboardPropagation prop when needed. This stops Ctrl+A, Ctrl+C, Ctrl+V, Tab, Enter, and Escape from reaching React Flow.

Screen Reader Support

Use sr-only class for visually hidden but screen-reader-accessible text:

<DialogClose>
  <Cross2Icon />
  <span className="sr-only">Close</span>
</DialogClose>

<DialogHeader className="sr-only">
  <DialogTitle>{title}</DialogTitle>
  <DialogDescription>{description}</DialogDescription>
</DialogHeader>

Semantic HTML

Use proper semantic elements and ARIA roles:

• Navigation — <nav aria-label="breadcrumb">
• The current page in a breadcrumb — <span role="link" aria-disabled="true" aria-current="page">
• Decorative separators — <li role="presentation" aria-hidden="true">
• Alerts — <div role="alert">

Focus Styling

All focusable elements must use the project's focus-visible ring pattern:

focus-visible:ring-ring/50 focus-visible:ring-[3px] focus-visible:border-ring

Do not remove outline-none without replacing it with a visible focus indicator.

UI Primitives A11y

The project's primitives already accept AriaAttributes:

• BlockStack and InlineStack accept all ARIA props
• Text accepts role and ARIA props
• Button has built-in focus-visible and disabled states
• Input supports aria-invalid, onEnter, onEscape
• All shadcn/ui components (Dialog, Select, Checkbox, Switch, Tabs) handle focus trapping and keyboard navigation automatically

React Flow Considerations

The pipeline editor has specific a11y needs:

• Handles: Support click selection and Escape to deselect
• Task nodes: Labels are interactive with visual feedback
• Folders in sidebar: Use role="button" with aria-expanded
• Canvas keyboard shortcuts: Must not interfere with dialog/modal focus

When adding new interactive elements to the flow canvas, ensure they:

1. Are keyboard accessible
2. Have appropriate ARIA labels
3. Don't capture keyboard events that should reach parent containers