Closes DOCS-1283
https://github.com/user-attachments/assets/6e55a27f-6f73-453b-b98f-e91d3c14a9e4
## Problem
Three defects in the docs code block:
- The scroll container has no `tabindex`. On `/guides/database/tables`,
18 blocks, none focusable, 2 overflowing at 1280px. Tab skips the scroll
region, so a keyboard-only user cannot scroll code that runs off the
edge.
- The container has `role="group"` with no accessible name, so it
announces as bare "group".
- The line-number gutter has no `aria-hidden`, so digits are read inline
with the code. A block linearizes as `1import { createClient } from
'@supabase/supabase-js'23const supabase = ...`, with lines 2 and 3
collapsing into "23".
Four more surfaced while testing the fix:
- The wrap and copy buttons were absolutely positioned inside the
element that scrolls, so `right-2` measured against the scrollable
content box. Scrolling dragged them out of the corner into the middle of
the code. This one predates the PR.
- The buttons preceded the code in the DOM, so a screen reader read two
actions before naming what they act on.
- `focus-within` only fired for the buttons, so focusing the block left
the controls invisible.
- Both buttons set an `aria-label` identical to their tooltip text, and
Radix points `aria-describedby` at the tooltip on focus, producing "Copy
code, button, Copy code".
## Solution
Keyboard:
- Split the scroll region out of the positioning container, so the
controls stay pinned.
- Give the scroll region a `tabIndex` and a focus ring.
- Reveal the controls on `group-focus-within`.
Screen reader:
- Name the region `<language>, <n> lines`. Code content stays readable;
the summary goes in the name so the group can be skipped or stepped
into.
- Map fence aliases to spoken names, so `ts` announces as TypeScript.
Only the ambiguous ones; `bash`, `python`, `kotlin`, `dart`, `swift`
already read fine.
- `aria-hidden` the gutter. The numbers are already `select-none`, and
copy takes its content from the source string rather than the DOM, so
copy behavior is unchanged.
- Order the controls after the code.
- Announce the word wrap toggle through a live region, matching the copy
button.
- Opt both buttons out of Radix's generated description.
Also moved the `data-wrapped` side effect out of the `setIsWrapped`
updater, since React calls updaters twice under StrictMode.
## Manual testing
1. Open `/docs/guides/database/tables`.
2. Run `document.querySelectorAll('.code-scroll[tabindex="0"]').length`
in the console. Expect `18`.
3. Run `[...document.querySelectorAll('.code-scroll')].map(b =>
b.getAttribute('aria-label'))`. Expect entries like `SQL, 11 lines` and
`bash, 2 lines`, plus one bare `2 lines` for the fence with no language.
4. Tab to a code block. Expect a visible focus ring, and the wrap and
copy buttons to appear.
5. Press ArrowRight on the block under "Basic data loading", which
overflows. Expect it to scroll, and the buttons to stay in the top-right
corner.
6. Press Enter on the wrap button. Expect the code to wrap and a screen
reader to announce "Word wrap enabled".
7. With VoiceOver on, focus a code block. Expect "SQL, 11 lines, code
block", then the code read without line numbers interleaved. Focus each
button and expect its name once, not twice.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Accessibility**
- Improved code block labels for screen readers, including programming
language and line count.
- Added announcements when word wrap is enabled or disabled.
- Enhanced keyboard focus behavior for code block controls.
- **Usability**
- Kept code block controls visible while scrolling through code.
- Improved wrapped-code overflow handling.
- Removed redundant tooltip descriptions for copy and word-wrap
controls.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## What kind of change does this PR introduce?
Accessibility / lint hardening (Safari keyboard focus).
## What is the current behavior?
`supabase/require-explicit-tabindex` is `'warn'`. Studio’s ratchet was
at 0 but the rule was still ratcheted; www / docs / design-system still
had raw `<button>` / `role="button"` call sites without an explicit
`tabIndex`.
[DEPR-627](https://linear.app/supabase/issue/DEPR-627) · follow-up to
#47984 / #48040
## What is the new behavior?
- Shared config: `'supabase/require-explicit-tabindex': 'error'`
- Swept www / docs / design-system (+ Studio test fixtures the ratchet
skipped)
- Removed the rule from the Studio ratchet + baselines
## To test
Prefer **Safari**. This PR only adds explicit `tabIndex` to raw
`<button>` / `role="button"` call sites — not links, and not controls
that already go through `Button` from `ui`.
### Marketing (`www`) ([staging
link](https://zone-www-dot-com-git-danny-depr-627-promote-req-7ae43c-supabase.vercel.app/))
- [x] Homepage frameworks / dashboard feature tabs — Tab through each
tab button
- [x] Product pages (e.g. `/auth`, `/database`) — section tab switchers
- [x] Narrow viewport — open the hamburger; Tab through menu buttons
- [x] `/partners/catalog` — filter / view controls
- [x] Blog view toggle (list ↔ grid)
### Docs ([staging
link](https://docs-git-danny-depr-627-promote-require-explici-25e46d-supabase.vercel.app/))
- [x] **Desktop (≥ lg):** top-right **⋯ menu** (hamburger icon) — opens
a dropdown that includes Theme. Not a separate theme button.
- [x] **Mobile (< lg):** top-right **hamburger** opens the sheet; close
(X) is the raw button we tagged. Theme inside the sheet uses
`ThemeToggle` / `DropdownMenuTrigger` from `ui` (already supposed to set
`tabIndex`).
- [x] **Code blocks** — copy / language controls
- [x] **Is this helpful?** — X / check are `Button` from `ui` (should
already Tab). After voting **while signed in**, the follow-up “What went
well?” / “How can we improve?” text button is the raw one we tagged.
- [x] **AI Tools → Copy as Markdown** (right rail on a guide) — this is
the only GuidesSidebar control this PR changed. “On this page” TOC items
are **links**, not covered by this lint.
- [x] **Reference docs** (e.g. JS client reference) — section headers
that expand/collapse in the left nav (`Collapsible.Trigger`)
- [x] **Troubleshooting index** — type in the search field, then Tab to
the **clear (X)** control
### Dashboard (`studio`)
No production UI changes in this PR (tests + lint config only). Quick
Safari smoke that prior tabindex work still holds:
- [x] Project sidebar — Tab through primary nav links
- [x] Settings → General — Tab through inputs / buttons
- [x] Storage → Files — Tab a bucket row / file actions
## Problem
Keyboard navigation on docs tabs is confusing:
- tab panels can be focused but without any indication that they are
- code example buttons can be focused with keyboard but stay invisible
- copy code button has no label and do not notify screen reader users
about its status
## Solution
- Make tab panels non focusable
- Ensure buttons are visible when focused
- Add a label to the copy code buttons
- Add a live region for the copy code status
## How to test
1. Go to
https://docs-git-gildasgarcia-docs-1156-cannot-keyboard-140a35-supabase.vercel.app/docs/guides/local-development/cli/getting-started
2. Go to a tab list with _Tab_ key
3. Verify you can choose the tab value with Arrow keys and select it
with space
4. Tab again and verify you now have focused the code example first
button and it is visible
5. Tab again and the copy code button should be focused and visible
If you enable Voice over, clicking the copy code button should announce
that the code has been copied
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
## Summary by CodeRabbit
* **Bug Fixes**
* Improved code block copy feedback so the “copied” state resets more
reliably after interaction.
* **Accessibility Improvements**
* Code block controls now appear on keyboard focus (not just hover) and
include an assistive live announcement when copying succeeds.
* Enhanced code block semantics with clearer ARIA labeling.
* Prevented tab panels from being reachable through normal tab
navigation to reduce unintended focus stops.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
This PR migrates the whole monorepo to use Tailwind v4:
- Removed `@tailwindcss/container-queries` plugin since it's included by
default in v4,
- Bump all instances of Tailwind to v4. Made minimal changes to the
shared config to remove non-supported features (`alpha` mentions),
- Migrate all apps to be compatible with v4 configs,
- Fix the `typography.css` import in 3 apps,
- Add missing rules which were included by default in v3,
- Run `pnpm dlx @tailwindcss/upgrade` on all apps, which renames a lot
of classes
- Rename all misnamed classes according to
https://tailwindcss.com/docs/upgrade-guide#renamed-utilities in all
apps.
---------
Co-authored-by: Jordi Enric <jordi.err@gmail.com>
* feat(code-block): add word wrap functionality and controls to code blocks
* feat(code-block): enhance layout of code block with improved line number display and structure
* fix h-full issue
* fix Prettier issue
---------
Co-authored-by: Chris Chinchilla <chris.ward@supabase.io>
* Consolidate copy to clipboard
* Fix
* Fix some extra clipboard events.
* Fix the tests. Fix a small issue with the copy button.
* Fix
---------
Co-authored-by: Ivan Vasilov <vasilov.ivan@gmail.com>
strictNullChecks was off for docs, which lets errors slip through and
leads to incorrect required/optional typing on Zod-inferred types. This
PR enables strictNullChecks and fixes all the existing violations.
