Calendar

Tier 2: Light-DOM

APG calendar date picker grid with month navigation and keyboard roving focus

Installation

$npx nnui add calendar

copy

Interactive Preview & Code

Selected Date: 2026-10-03

<!-- Standalone Form-Associated Calendar -->
<ui-calendar value="2026-10-03" name="appointment_date"></ui-calendar>

<script type="module">
  const cal = document.querySelector('ui-calendar');
  cal.addEventListener('change', (e) => {
    console.log('Selected date:', e.detail.value);
  });
</script>

import React, { useState } from 'react';
import 'nnui-kit'; // Registers universal Light-DOM elements

export default function CalendarDemo() {
  const [tab, setTab] = useState('all');
  const [val, setVal] = useState(50);
  const [selected, setSelected] = useState('');
  const [query, setQuery] = useState('');

  return (
    <!-- Standalone Form-Associated Calendar -->
    <ui-calendar value="2026-10-03" name="appointment_date"></ui-calendar>

    <script type="module">
      const cal = document.querySelector('ui-calendar');
      cal.addEventListener('change', (e) => {
        console.log('Selected date:', e.detail.value);
      });
    </script>
  );
}

<script setup>
import { ref } from 'vue';
import 'nnui-kit'; // Registers universal Light-DOM elements

const activeTab = ref('all');
const sliderValue = ref(50);
const selected = ref('');
const query = ref('');

const handleSelect = (val) => {
  console.log('Selected:', val);
};
</script>

<template>
  <!-- Standalone Form-Associated Calendar -->
  <ui-calendar value="2026-10-03" name="appointment_date"></ui-calendar>

  <script type="module">
    const cal = document.querySelector('ui-calendar');
    cal.addEventListener('change', (e) => {
      console.log('Selected date:', e.detail.value);
    });
  </script>
</template>

<script>
  import 'nnui-kit';

  let activeTab = $state('all');
  let sliderValue = $state(50);
  let selected = $state('');
</script>

<!-- Standalone Form-Associated Calendar -->
<ui-calendar value="2026-10-03" name="appointment_date"></ui-calendar>

<script type="module">
  const cal = document.querySelector('ui-calendar');
  cal.addEventListener('change', (e) => {
    console.log('Selected date:', e.detail.value);
  });
</script>

How to Utilize

NNUI-KIT components live directly in the document Light DOM. You can use them via declarative HTML, with our first-class React wrapper, or platform-natively in Svelte, Vue, Astro, and HTMX:

React 18 & 19 (Next.js 15 App Router)

import 'nnui-kit/css';
import 'nnui-kit/client';
import { Calendar } from 'nnui-kit/react';

Universal Web Components (Vue 3, Svelte 5, Astro, HTMX)

<!-- Automatically registers <ui-calendar> and <nnui-calendar> -->
import 'nnui-kit/css';
import 'nnui-kit/client';

Platform Features

Zero Shadow DOM

Element lives in the Light DOM. Tailwind and global CSS apply directly.

persist="url | local"

Add declarative persistence attribute to auto-sync state with URL search params.

sync="cross-tab"

Synchronize changes across all open browser tabs via BroadcastChannel.