Simple CMS Template

This template is a minimal content management system for building a site. Read the tutorial “Building a CMS Frontend” to learn how it works.

Source

<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <link rel="stylesheet" href="/ui.css">
    <link rel="icon" type="image/png" sizes="32x32" href="/thumb.png">
  </head>
  <body>
    <nav>
      <div class="view-mode active">
        <button class="new">New</button>
        <hr>
        <button class="edit">Edit</button>
        <button class="remove">Delete</button>
      </div>
      <div class="edit-mode">
        <button class="save">Save</button>
        <button class="cancel">Cancel</button>
      </div>
    </nav>
    <main></main>
    <textarea id="editor"></textarea>
    <script type="module" src="/ui.js"></script>
  </body>
</html>

{
  "title": "My Website",
  "description": "A simple editable website.",
  "fallback": "/index.html"
}

// Routes are extensionless virtual paths (/, /about, …) with page content stored
// under /pages/<route>.html. A route has no real file, so the manifest `fallback`
// serves this shell there and we render the stored page into it. (/index.html is
// the shell itself; storing pages at real .html paths would win the navigation
// and serve them raw, outside the site chrome.)
var route = location.pathname.replace(/\/$/, '') || '/'
var pathname = route === '/' || route === '/index.html'
  ? '/pages/index.html'
  : `/pages${route}.html`

const $ = (sel, parent = document) => parent.querySelector(sel)
const nav = $('nav')
const main = $('main')
const editor = $('#editor')

async function readPage () {
  return nomad.fs.readFile(pathname).catch(e => '')
}

async function onNew (e) {
  var page = prompt('Enter the name of your new page')
  if (!page) return
  page = page.replace(/\.html$/, '').replace(/^\//, '')
  await nomad.fs.writeFile(`/pages/${page}.html`, `<h1>${page}</h1>`)
  location.pathname = `/${page}`
}

async function onSave (e) {
  await nomad.fs.writeFile(pathname, editor.value)
  location.reload()
}

async function onDelete (e) {
  if (!confirm('Are you sure?')) return
  await nomad.fs.unlink(pathname)
  location.reload()
}

async function enterEditMode () {
  $('.view-mode', nav).classList.remove('active')
  $('.edit-mode', nav).classList.add('active')
  main.classList.remove('active')
  editor.classList.add('active')
  editor.value = await readPage()
}

async function enterViewMode () {
  $('.view-mode', nav).classList.add('active')
  $('.edit-mode', nav).classList.remove('active')
  main.classList.add('active')
  editor.classList.remove('active')
  main.innerHTML = await readPage()
}

async function setup () {
  // register event listeners
  $('button.new', nav).addEventListener('click', onNew)
  $('button.edit', nav).addEventListener('click', e => enterEditMode())
  $('button.remove', nav).addEventListener('click', onDelete)
  $('button.save', nav).addEventListener('click', onSave)
  $('button.cancel', nav).addEventListener('click', e => enterViewMode())

  // start in view mode
  enterViewMode()
}
setup()

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

  display: grid;
  grid-template-columns: 100px 1fr;
  grid-gap: 30px;
  height: 100%;
  margin: 0;
}

body > nav {
  background: #f3f3f8;
  height: 100%;
  padding: 10px;
}

body > nav .view-mode,
body > nav .edit-mode,
main,
#editor {
  display: none;
}

body > nav .view-mode.active,
body > nav .edit-mode.active,
main.active,
#editor.active {
  display: block;
}

body > nav button {
  display: block;
  width: 100%;
  margin-bottom: 5px;
}

body > nav hr {
  border: 0;
  border-top: 1px solid #ddd;
}

#editor {
  height: 100vh;
}

MIT License

Copyright (c) 2020 Blue Link Labs

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.