Pivot table

Copy this

<!-- icons: include the icon sheet once per page (see the Setup section, #setup) -->
<div class="pivot-region hm-measure-lg" data-pivot>
  <div class="pivot-scroll">
    <table class="pivot-grid">
      <thead>
        <tr>
          <th>System</th>
          <th>Severity</th>
          <th class="is-measure">Count</th>
        </tr>
      </thead>
      <tbody>
        <tr>
          <td>API</td>
          <td><span class="badge badge-sm" data-tone="destructive" role="status" aria-label="Status: Critical"><span class="badge-icon"><svg class="icon" aria-hidden="true"><use href="#i-circle-x"/></svg></span>Critical</span></td>
          <td class="is-measure">3</td>
        </tr>
        <tr>
          <td>Dashboard</td>
          <td><span class="pivot-null">—</span></td>
          <td class="is-measure">9</td>
        </tr>
      </tbody>
    </table>
  </div>
  <p class="pivot-summary">2 rows</p>
</div>

Server exchange

This Hyperpart has no server exchange — it is presentation or client chrome only. htmx does not issue a request on this part's behalf. If you put an affordance (hx-*) on a control that uses this markup, that action's exchange belongs to the action, not this part. See Swap contract for host-owned envelopes.

Swap contract

Agent-visible HTMX topology (ADR-0054 / decision 0012). exchange envelope = what the response may re-emit relative to the persistent slot (body_only | outer | none | host_owned | document). dual-lock validates part markup only — not this envelope. Stem: stems/morph-safe-hypermedia.md; decision: docs/decisions/0012-swap-identity-contract.md.

No host HTMX exchange on this part — presentation or client chrome only. exchange envelope: n/a.

If a host wraps this markup in hx-*, that host owns the swap contract (sole identity + envelope). Prefer innerMorph / outerMorph for stable slots; replacement for flash; body-only responses under inner swaps.

Envelope response examples

This part has no owned exchange (envelope n/a). If a host adds hx-*, that host’s envelope applies — typically body_only:

<!-- Host wraps this presentation part with hx-* (host owns envelope) -->
<!-- Prefer: hx-swap="innerMorph" hx-target="#panel-body" -->
<!-- Server returns body_only interior for #panel-body -->
<div class="dz-stack">content…</div>

Do not re-own the slot:

<!-- WRONG: server returns the presentation root with a new id every poll -->
<div id="pivot-root" data-dz-region>…</div>

How to use it

No extended guidance authored yet — start from Copy this and the dependency chips (Primitive = markup only; controller = load listed JS; Endpoint = implement Server exchange).

Seams

• copy the partial under Copy this; keep root class and data-* modifiers so the CSS/JS bundle matches
• no Server exchange on this part — pure presentation or client chrome
• satisfy the DOM contract tables (CI stop-ship)

DOM contract

What the emitted HTML must satisfy — the table is the required surface; Python under contracts/ is the package-internal dual-lock CI runs (tests/test_contracts.py), not an app route. Standalone HTMX4: implement the API so responses match this markup. Dazzle: the agent emits SSR that already satisfies it. Do not invent attrs outside these tables. For request/response wiring see Server exchange.

contracts/pivot.py

Required in the DOM: root [data-pivot] (part pivot). Emit only these attributes — inventing extras is fine only if controllers ignore them; omitting required ones fails CI (tests/test_contracts.py).

Ingestion model PivotTable

Server-side shape before render — one normalisation boundary for producers.

Exemplar render()

Executable in CI: the Python below is render(); the boxed preview is render(EXEMPLARS[0]) — the first fixture the dual-lock tests emit, not a separate widget and not gallery mock data.

def render(p: PivotTable) -> str:
    """Model → pivot table region."""
    if not p.rows:
        return (
            f'<div class="dz-pivot-region" data-dz-pivot>'
            f'<p class="dz-empty-dense" role="status">'
            f"{html.escape(p.empty_message)}</p>"
            f"</div>"
        )

    head_dim = "".join(f"<th>{html.escape(h)}</th>" for h in p.dim_headers)
    head_measure = "".join(
        f'<th class="is-measure">{html.escape(h)}</th>' for h in p.measure_headers
    )
    thead = f"<thead><tr>{head_dim}{head_measure}</tr></thead>"
    n_dim = len(p.dim_headers)
    body_parts: list[str] = []
    for row in p.rows:
        cells = ""
        for i, c in enumerate(row):
            if i >= n_dim:
                cells += f'<td class="is-measure">{c}</td>'
            else:
                cells += f"<td>{c}</td>"
        body_parts.append(f"<tr>{cells}</tr>")
    tbody = f"<tbody>{''.join(body_parts)}</tbody>"
    n = len(p.rows)
    suffix = "" if n == 1 else "s"
    summary = f'<p class="dz-pivot-summary">{n} row{suffix}</p>'
    return (
        f'<div class="dz-pivot-region" data-dz-pivot>'
        f'<div class="dz-pivot-scroll">'
        f'<table class="dz-pivot-grid">{thead}{tbody}</table>'
        f"</div>"
        f"{summary}"
        f"</div>"
    )

Notes

Source files

Canonical registration in the registry. No dedicated controller — CSS for this part lives in the layered bundle.

site/registry.py · contracts/pivot.py