# ProjectNav

> Previous/next navigation between case studies, with a back-to-work action, for the foot of work detail pages.

- Status: stable
- Group: navigation
- Page: https://www.digitaltableteur.com/design-system/components/project-nav
- Contract: https://www.digitaltableteur.com/contracts/v1/ProjectNav.contract.json

## When to use

Previous/next navigation between case studies at the foot of work detail pages, plus a back-to-work action. Targets are derived from the project ordering; at each sequence edge the control is a dimmed, non-interactive placeholder (role=link, aria-disabled, labelled) instead of a navigable link.

## When not to use

- Do not use for site-wide navigation (that is SiteHeader)

## Look-alikes

- SiteHeader: Do not use for site-wide navigation (that is SiteHeader)

## Props

| Prop | Type | Default | Description | Required |
| --- | --- | --- | --- | --- |
| `currentSlug` | `string` | none | Current project slug. | Yes |
| `className` | `string` | none | Custom className. | No |

## Variants

No variant dimensions and no props with a fixed set of values.

## Invalid combinations

The contract records no invalid combinations.

## Keyboard

The contract records no keyboard interaction.

## Rules

Every item under When not to use is a MUST NOT. MUST and SHOULD follow RFC 2119.

| Level | Rule | How it is checked |
| --- | --- | --- |
| MUST | ARIA: Wrapped in a nav landmark labelled via aria-label (projectNavLabel) | Not yet verified: no evidence record. WCAG 4.1.2. |
| MUST | ARIA: Back, previous and next are native links (Tab, Enter); previous and next carry an aria-label of the translated projectPrevious or projectNext label plus the target project title. | Not yet verified: no evidence record. WCAG 4.1.2. |
| MUST | ARIA: The sequence edge is a span with role="link", aria-disabled="true" and an aria-label (projectPrevious or projectNext), with no href or tabindex: it is skipped by Tab and announced as a disabled "Previous project" or "Next project" link, including below the tablet breakpoint where it shows only the arrow icon. | Not yet verified: no evidence record. WCAG 4.1.2. |
| MUST | Required stories produce no axe violations at the configured severity. | Automated by `npm run test:stories:matrix:ci`. WCAG 2.5.8. |
| MUST | The accessibility tree (role, name, state) matches the committed snapshot for every required story. | Automated by `npm run test:stories:matrix:ci`. WCAG 1.3.1, 4.1.2. |
| MUST | The component remains legible and operable under a real browser forced-colors: active pass. | Automated by `npm run test:stories:hc`. |
| MUST | A human completed an end-to-end accessibility review of this component. | Manual review, last on 2026-11-04. |
| MUST NOT | Maintainers: Do not invent parallel primitives inside this folder. | Release review; not machine-checked. |

## Install and import

- In-repo only. ProjectNav is not exported from `@digitaltableteur/react`, so there is no public import path.

## Links

- Machine-readable contract (Design System Contract 1.0): https://www.digitaltableteur.com/contracts/v1/ProjectNav.contract.json
- Markdown version of this page: https://www.digitaltableteur.com/design-system/components/project-nav.md
- Component index as JSON: https://www.digitaltableteur.com/design-system/components.json
- All components: https://www.digitaltableteur.com/design-system/components
- Source: The implementation lives in a private repository. This page, its Markdown twin and the contract are generated from it at build time and are the public source of truth.