quartz-research-note/layouts/partials/popover.html

{{if $.Site.Data.config.enableLinkPreview}}
<script>
  function htmlToElement(html) {
    const template = document.createElement('template')
    html = html.trim()
    template.innerHTML = html
    return template.content.firstChild
  }
  const baseUrl = {{strings.TrimRight "/" .Site.BaseURL }}.replace(window.location.origin, "")
  document.addEventListener("DOMContentLoaded", () => {
    fetchData().then(({content}) => {
      const links = [...document.getElementsByClassName("internal-link")]
      links.forEach(li => {
        const linkDest = content[li.dataset.src.replace(baseUrl, "")]
        // const linkDest = content[li.dataset.src]
          if (linkDest) {
            const popoverElement = `<div class="popover">
    <h3>${linkDest.title}</h3>
    <p>${removeMarkdown(linkDest.content).split(" ", 20).join(" ")}...</p>
    <p class="meta">${new Date(linkDest.lastmodified).toLocaleDateString()}</p>
</div>`
            const el = htmlToElement(popoverElement)
            li.appendChild(el)
            li.addEventListener("mouseover", () => {
              el.classList.add("visible")
            })
            li.addEventListener("mouseout", () => {
              el.classList.remove("visible")
            })
          }
        })
    })
  })
</script>
{{end}}