Number steppers
Increment and decrement a bounded numeric value without a custom input model.
Live preview
HTML
<div class="xsh-field xsh-measure">
<label class="xsh-label" for="xsh-quantity">Seats</label>
<div class="xsh-step-input" data-xsh-stepper>
<button class="xsh-button xsh-button--secondary" type="button" aria-label="Remove one seat" data-xsh-step="-1">−</button>
<input id="xsh-quantity" class="xsh-input" type="number" value="4" min="1" max="30" step="1">
<button class="xsh-button xsh-button--secondary" type="button" aria-label="Add one seat" data-xsh-step="1">+</button>
</div>
</div>Installation & markup
Include the local stylesheet and script once on the page, then place the component inside a data-xsh-ui root. The example above works without a build system.
<link rel="stylesheet" href="/dist/xshna-ui.css">
<div data-xsh-ui>
<!-- Add the HTML example above -->
</div>
<script defer src="/dist/xshna-ui.js"></script>Component API
Public classes, attributes and hooks used by this example. Keep the xsh- prefix intact.
| Identifier | Contract |
|---|---|
xsh-step-input | Used by the example markup and component styles or behavior. |
data-xsh-stepper | Used by the example markup and component styles or behavior. |
data-xsh-step | Used by the example markup and component styles or behavior. |
min | Used by the example markup and component styles or behavior. |
max | Used by the example markup and component styles or behavior. |
Accessibility & keyboard
Buttons respect min/max and change the native number input; keyboard input remains available.
Implementation note. Always enforce numeric boundaries again on the server.
Interaction contract
Behavioral components use the shared delegated runtime; visual-only primitives rely on semantic HTML and CSS. Runtime controls emit bubbling xsh:* CustomEvents; bind application handlers to those events when server persistence, API data or navigation is required.