fix(canvas): complete ARIA tab pattern for ExternalConnectModal (WCAG)

- Add id=, aria-controls=, and tabIndex= to each role=tab button
- Add id= and role=tabpanel + aria-labelledby= to each snippet panel
- Restructure panels as always-rendered (hidden CSS) so aria-controls
  targets are stable — active panel has role=tabpanel, hidden panels
  are hidden with aria-hidden semantics via hidden attribute
- Add ArrowRight/ArrowLeft/ArrowDown/ArrowUp + Home/End keyboard
  navigation for the tablist (ARIA tab pattern requirement)
- Compute tabList once after filled* vars to share between tab bar
  and keyboard handler

WCAG 4.1.3 (Name, Role, Value) — tab controls now have correct
role, aria-selected, aria-controls, and keyboard navigation.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
2026-05-18 01:34:26 +00:00
parent d1664b3144
commit 7f178778d5
+186 -84
View File
@@ -15,7 +15,7 @@
// ($AGENT_URL). They ARE NOT filled in server-side because the
// server doesn't know where the operator's agent will live.
import { useCallback, useState } from "react";
import { useCallback, useRef, useState } from "react";
import * as Dialog from "@radix-ui/react-dialog";
type Tab = "python" | "curl" | "claude" | "mcp" | "hermes" | "codex" | "openclaw" | "kimi" | "fields";
@@ -84,6 +84,33 @@ export function ExternalConnectModal({ info, onClose }: Props) {
: "python";
const [tab, setTab] = useState<Tab>(initialTab);
const [copiedKey, setCopiedKey] = useState<string | null>(null);
const tabRefs = useRef<Map<Tab, HTMLButtonElement | null>>(new Map());
const handleTabKeyDown = useCallback(
(e: React.KeyboardEvent<HTMLButtonElement>, current: Tab, tabs: Tab[]) => {
const idx = tabs.indexOf(current);
if (e.key === "ArrowRight" || e.key === "ArrowDown") {
e.preventDefault();
const next = tabs[(idx + 1) % tabs.length];
setTab(next);
tabRefs.current.get(next)?.focus();
} else if (e.key === "ArrowLeft" || e.key === "ArrowUp") {
e.preventDefault();
const prev = tabs[(idx - 1 + tabs.length) % tabs.length];
setTab(prev);
tabRefs.current.get(prev)?.focus();
} else if (e.key === "Home") {
e.preventDefault();
setTab(tabs[0]);
tabRefs.current.get(tabs[0])?.focus();
} else if (e.key === "End") {
e.preventDefault();
setTab(tabs[tabs.length - 1]);
tabRefs.current.get(tabs[tabs.length - 1])?.focus();
}
},
[],
);
const copy = useCallback(async (value: string, key: string) => {
try {
@@ -160,6 +187,19 @@ export function ExternalConnectModal({ info, onClose }: Props) {
`MOLECULE_WORKSPACE_TOKEN=${info.auth_token}`,
);
// Build the tab list once so both the tab bar and keyboard handler
// share the same ordered array. Computed here (after all filled* vars)
// so TypeScript's block-scoping analysis can reach them.
const tabList: Tab[] = [];
if (filledUniversalMcp) tabList.push("mcp");
tabList.push("python");
if (filledChannel) tabList.push("claude");
if (filledHermes) tabList.push("hermes");
if (filledCodex) tabList.push("codex");
if (filledOpenClaw) tabList.push("openclaw");
if (filledKimi) tabList.push("kimi");
tabList.push("curl", "fields");
return (
<Dialog.Root open onOpenChange={(o) => !o && onClose()}>
<Dialog.Portal>
@@ -180,34 +220,18 @@ export function ExternalConnectModal({ info, onClose }: Props) {
aria-label="Connection snippet format"
className="mt-4 flex gap-1 border-b border-line"
>
{(() => {
// Build the tab order dynamically. Claude Code first
// (when offered) since it's the simplest setup; Python
// SDK second (full register+heartbeat+inbound); Universal
// MCP third (any MCP-aware runtime, outbound-only); curl
// for one-shot register; Fields for raw values.
// Tab order: Universal MCP first (default, runtime-
// agnostic primitives), then runtime-specific channel/
// SDK tabs, then curl + Fields. Each runtime tab only
// appears when the platform supplies the snippet — no
// dead "tab missing snippet" UX.
const tabs: Tab[] = [];
if (filledUniversalMcp) tabs.push("mcp");
tabs.push("python");
if (filledChannel) tabs.push("claude");
if (filledHermes) tabs.push("hermes");
if (filledCodex) tabs.push("codex");
if (filledOpenClaw) tabs.push("openclaw");
if (filledKimi) tabs.push("kimi");
tabs.push("curl", "fields");
return tabs;
})().map((t) => (
{tabList.map((t) => (
<button
key={t}
type="button"
role="tab"
id={`tab-${t}`}
aria-selected={tab === t}
aria-controls={`panel-${t}`}
tabIndex={tab === t ? 0 : -1}
ref={(el) => { tabRefs.current.set(t, el); }}
onClick={() => setTab(t)}
onKeyDown={(e) => handleTabKeyDown(e, t, tabList)}
className={`px-3 py-2 text-sm border-b-2 -mb-px transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-accent focus-visible:ring-offset-1 focus-visible:ring-offset-surface ${
tab === t
? "border-accent text-ink"
@@ -235,18 +259,37 @@ export function ExternalConnectModal({ info, onClose }: Props) {
))}
</div>
{/* Snippet area */}
{/* Snippet area — all panels always in the DOM so aria-controls
targets are stable. Hidden panels use aria-hidden so screen
readers skip them; active panel uses role=tabpanel with
aria-labelledby pointing to the tab button. */}
<div className="mt-3">
{tab === "claude" && filledChannel && (
<SnippetBlock
value={filledChannel}
label="Claude Code channel — polls workspace's A2A; no tunnel needed"
copyKey="claude"
copied={copiedKey === "claude"}
onCopy={() => copy(filledChannel, "claude")}
/>
)}
{tab === "python" && (
{/* Claude Code tab */}
<div
id="panel-claude"
role="tabpanel"
aria-labelledby="tab-claude"
hidden={tab !== "claude" || !filledChannel}
className={tab === "claude" && filledChannel ? "" : "hidden"}
>
{filledChannel && (
<SnippetBlock
value={filledChannel}
label="Claude Code channel — polls workspace's A2A; no tunnel needed"
copyKey="claude"
copied={copiedKey === "claude"}
onCopy={() => copy(filledChannel, "claude")}
/>
)}
</div>
{/* Python SDK tab */}
<div
id="panel-python"
role="tabpanel"
aria-labelledby="tab-python"
hidden={tab !== "python"}
className={tab === "python" ? "" : "hidden"}
>
<SnippetBlock
value={filledPython}
label="Python SDK — includes heartbeat loop (push-mode, needs public URL)"
@@ -254,8 +297,15 @@ export function ExternalConnectModal({ info, onClose }: Props) {
copied={copiedKey === "python"}
onCopy={() => copy(filledPython, "python")}
/>
)}
{tab === "curl" && (
</div>
{/* curl tab */}
<div
id="panel-curl"
role="tabpanel"
aria-labelledby="tab-curl"
hidden={tab !== "curl"}
className={tab === "curl" ? "" : "hidden"}
>
<SnippetBlock
value={filledCurl}
label="curl — one-shot register only (no heartbeat)"
@@ -263,53 +313,105 @@ export function ExternalConnectModal({ info, onClose }: Props) {
copied={copiedKey === "curl"}
onCopy={() => copy(filledCurl, "curl")}
/>
)}
{tab === "mcp" && filledUniversalMcp && (
<SnippetBlock
value={filledUniversalMcp}
label="Universal MCP — standalone register + heartbeat + tools for any MCP-aware runtime (Claude Code, hermes, codex). Pair with Python or Claude Code tab if you need inbound A2A delivery."
copyKey="mcp"
copied={copiedKey === "mcp"}
onCopy={() => copy(filledUniversalMcp, "mcp")}
/>
)}
{tab === "hermes" && filledHermes && (
<SnippetBlock
value={filledHermes}
label="Hermes channel — bridges this workspace's A2A traffic into your hermes-agent session as platform messages (push parity with Claude Code). Long-poll based; no tunnel needed."
copyKey="hermes"
copied={copiedKey === "hermes"}
onCopy={() => copy(filledHermes, "hermes")}
/>
)}
{tab === "codex" && filledCodex && (
<SnippetBlock
value={filledCodex}
label="Codex MCP config — wires the molecule MCP server into ~/.codex/config.toml. Outbound tools today; inbound A2A push needs the Python SDK tab paired in (codex's MCP runtime doesn't route arbitrary notifications/* yet)."
copyKey="codex"
copied={copiedKey === "codex"}
onCopy={() => copy(filledCodex, "codex")}
/>
)}
{tab === "openclaw" && filledOpenClaw && (
<SnippetBlock
value={filledOpenClaw}
label="OpenClaw MCP config — wires the molecule MCP server via openclaw mcp set + starts the gateway on loopback. Outbound tools today; inbound A2A push on an external openclaw needs the Python SDK tab paired in (a sessions.steer bridge daemon is future work)."
copyKey="openclaw"
copied={copiedKey === "openclaw"}
onCopy={() => copy(filledOpenClaw, "openclaw")}
/>
)}
{tab === "kimi" && filledKimi && (
<SnippetBlock
value={filledKimi}
label="Kimi CLI — self-contained Python bridge. Registers, heartbeats, polls for canvas messages, and echoes replies back. NAT-safe (no public URL). Run in a background terminal or via launchd."
copyKey="kimi"
copied={copiedKey === "kimi"}
onCopy={() => copy(filledKimi, "kimi")}
/>
)}
{tab === "fields" && (
</div>
{/* Universal MCP tab */}
<div
id="panel-mcp"
role="tabpanel"
aria-labelledby="tab-mcp"
hidden={tab !== "mcp" || !filledUniversalMcp}
className={tab === "mcp" && filledUniversalMcp ? "" : "hidden"}
>
{filledUniversalMcp && (
<SnippetBlock
value={filledUniversalMcp}
label="Universal MCP — standalone register + heartbeat + tools for any MCP-aware runtime (Claude Code, hermes, codex). Pair with Python or Claude Code tab if you need inbound A2A delivery."
copyKey="mcp"
copied={copiedKey === "mcp"}
onCopy={() => copy(filledUniversalMcp, "mcp")}
/>
)}
</div>
{/* Hermes tab */}
<div
id="panel-hermes"
role="tabpanel"
aria-labelledby="tab-hermes"
hidden={tab !== "hermes" || !filledHermes}
className={tab === "hermes" && filledHermes ? "" : "hidden"}
>
{filledHermes && (
<SnippetBlock
value={filledHermes}
label="Hermes channel — bridges this workspace's A2A traffic into your hermes-agent session as platform messages (push parity with Claude Code). Long-poll based; no tunnel needed."
copyKey="hermes"
copied={copiedKey === "hermes"}
onCopy={() => copy(filledHermes, "hermes")}
/>
)}
</div>
{/* Codex tab */}
<div
id="panel-codex"
role="tabpanel"
aria-labelledby="tab-codex"
hidden={tab !== "codex" || !filledCodex}
className={tab === "codex" && filledCodex ? "" : "hidden"}
>
{filledCodex && (
<SnippetBlock
value={filledCodex}
label="Codex MCP config — wires the molecule MCP server into ~/.codex/config.toml. Outbound tools today; inbound A2A push needs the Python SDK tab paired in (codex's MCP runtime doesn't route arbitrary notifications/* yet)."
copyKey="codex"
copied={copiedKey === "codex"}
onCopy={() => copy(filledCodex, "codex")}
/>
)}
</div>
{/* OpenClaw tab */}
<div
id="panel-openclaw"
role="tabpanel"
aria-labelledby="tab-openclaw"
hidden={tab !== "openclaw" || !filledOpenClaw}
className={tab === "openclaw" && filledOpenClaw ? "" : "hidden"}
>
{filledOpenClaw && (
<SnippetBlock
value={filledOpenClaw}
label="OpenClaw MCP config — wires the molecule MCP server via openclaw mcp set + starts the gateway on loopback. Outbound tools today; inbound A2A push on an external openclaw needs the Python SDK tab paired in (a sessions.steer bridge daemon is future work)."
copyKey="openclaw"
copied={copiedKey === "openclaw"}
onCopy={() => copy(filledOpenClaw, "openclaw")}
/>
)}
</div>
{/* Kimi tab */}
<div
id="panel-kimi"
role="tabpanel"
aria-labelledby="tab-kimi"
hidden={tab !== "kimi" || !filledKimi}
className={tab === "kimi" && filledKimi ? "" : "hidden"}
>
{filledKimi && (
<SnippetBlock
value={filledKimi}
label="Kimi CLI — self-contained Python bridge. Registers, heartbeats, polls for canvas messages, and echoes replies back. NAT-safe (no public URL). Run in a background terminal or via launchd."
copyKey="kimi"
copied={copiedKey === "kimi"}
onCopy={() => copy(filledKimi, "kimi")}
/>
)}
</div>
{/* Fields tab */}
<div
id="panel-fields"
role="tabpanel"
aria-labelledby="tab-fields"
hidden={tab !== "fields"}
className={tab === "fields" ? "" : "hidden"}
>
<div className="space-y-2">
<Field label="workspace_id" value={info.workspace_id} onCopy={() => copy(info.workspace_id, "wsid")} copied={copiedKey === "wsid"} />
<Field label="platform_url" value={info.platform_url} onCopy={() => copy(info.platform_url, "url")} copied={copiedKey === "url"} />
@@ -323,7 +425,7 @@ export function ExternalConnectModal({ info, onClose }: Props) {
<Field label="registry_endpoint" value={info.registry_endpoint} onCopy={() => copy(info.registry_endpoint, "reg")} copied={copiedKey === "reg"} />
<Field label="heartbeat_endpoint" value={info.heartbeat_endpoint} onCopy={() => copy(info.heartbeat_endpoint, "hb")} copied={copiedKey === "hb"} />
</div>
)}
</div>
</div>
<div className="mt-5 flex justify-end gap-2">