レーティング

<%# Markup for the rating (APG Radio Group, ordinal scale) demo.
    Each symbol is role="radio" with an aria-label ("3 stars", etc.). Selection is
    aria-checked; the currently filled range is data-rating-hover (the selected value or
    a hover/focus preview). The star look is the consumer's CSS. %>
<div class="rating-demo" role="radiogroup" aria-label="<%= t('components.rating.demo.label') %>"
     data-controller="stimeo--rating"
     data-stimeo--rating-value-value="0" data-stimeo--rating-max-value="5">
  <% (1..5).each do |n| %>
    <span class="rating-demo__star" role="radio" aria-checked="false"
          aria-label="<%= t('components.rating.demo.star', count: n) %>"
          tabindex="<%= n == 1 ? 0 : -1 %>"
          data-rating-value="<%= n %>" data-stimeo--rating-target="symbol"
          data-action="click->stimeo--rating#select
                       mouseenter->stimeo--rating#preview
                       mouseleave->stimeo--rating#endPreview
                       focus->stimeo--rating#preview
                       blur->stimeo--rating#endPreview
                       keydown->stimeo--rating#onKeydown">
      <svg class="rating-demo__icon" viewBox="0 0 24 24" aria-hidden="true">
        <path d="M12 2l2.9 6.26 6.86.6-5.2 4.52 1.56 6.72L12 17.1 5.88 20.6l1.56-6.72-5.2-4.52
                 6.86-.6z"></path>
      </svg>
    </span>
  <% end %>

  <input type="hidden" name="rating" value="0" data-stimeo--rating-target="field" />

  <%# Subscribe to the change event to show the current value (updated by demo.js). %>
  <span class="rating-demo__status" aria-live="polite"
        data-empty-text="<%= t('components.rating.demo.empty') %>"
        data-rated-template="<%= t('components.rating.demo.rated') %>"><%= t(
          'components.rating.demo.empty'
        ) %></span>
</div>

/*
 * Presentation-only styles for the rating demo.
 * The currently filled range is expressed via [data-rating-hover] (the selected value
 * or a hover/focus preview).
 */

.rating-demo {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.rating-demo__star {
  display: inline-flex;
  padding: 0.125rem;
  border-radius: 0.25rem;
  cursor: pointer;
  line-height: 0;
}

.rating-demo__star:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.rating-demo__icon {
  width: 1.75rem;
  height: 1.75rem;
  fill: var(--slate-300);
  transition: fill 0.12s ease;
}

/* Symbols within the filled range are colored with the accent (amber). */
.rating-demo__star[data-rating-hover] .rating-demo__icon {
  fill: var(--amber-500);
}

.rating-demo__status {
  margin-left: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

// Demo script that subscribes to the rating change event and shows the current value.
// The copy uses the localized template in a data attribute (substituting "{n}" with
// the value) and an empty-state text.
document.addEventListener('stimeo--rating:change', function (event) {
  const status = document.querySelector('.rating-demo__status');
  if (!status) return;
  const value = event.detail.value;
  if (value === 0) {
    status.textContent = status.dataset.emptyText || '';
  } else {
    status.textContent = (status.dataset.ratedTemplate || '').replace('{n}', String(value));
  }
});