2026-dialog/demo7.html at main · codegrid/2026-dialog · GitHub

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<html>
<head>
<meta charset="UTF-8">
<title>Top Layer：showPopover() でカレンダーを Top Layer に配置する</title>
<link rel="stylesheet" href="https://esm.sh/flatpickr/dist/flatpickr.min.css">
<style>
body {
  font-family: sans-serif;
}

dialog {
  padding: 32px;
  border: 1px solid #ccc;
  max-width: 380px;
}

dialog::backdrop {
  background: rgb(0 0 0 / 0.4);
}

.modal-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

#calendar-popover {
  position: fixed;
  inset: 0;
  padding: 0;
  border: 0;
  width: 100%;
  height: 100%;
  background: transparent;
}
</style>
<script type="module">
import flatpickr from 'https://esm.sh/flatpickr';

const calendarPopover = document.getElementById('calendar-popover');

const fp = flatpickr('#datepicker', {
  onReady(_, __, fp) {
    calendarPopover.appendChild(fp.calendarContainer);
  },
  onOpen(_, __, fp) {
    calendarPopover.showPopover();
  },
  onClose() {
    calendarPopover.hidePopover();
  },
});
</script>
</head>
<body>
<button onclick="modal7.showModal()">モーダルを開く</button>

<dialog id="modal7">
  <div class="modal-content">
    <p>日付を選択してください。カレンダーが Top Layer に表示されます。</p>
    <input id="datepicker" type="text" placeholder="日付を選択">
    <button autofocus onclick="modal7.close()">閉じる</button>
  </div>
</dialog>

<div id="calendar-popover" popover="manual"></div>
</body>
</html>