map-website/lib/sidebar.js

define([], function () {
  return function (el) {
    var self = this

    var sidebar = document.createElement("div")
    sidebar.classList.add("sidebar")
    el.appendChild(sidebar)

    var button = document.createElement("button")
    sidebar.appendChild(button)

    button.classList.add("sidebarhandle")
    button.onclick = function () {
      sidebar.classList.toggle("hidden")
    }

    self.getWidth = function () {
      if (sidebar.classList.contains("hidden"))
          return 0

      var small = window.matchMedia("(max-width: 60em)")
      return small.matches ? 0 : sidebar.offsetWidth
    }

    self.add = function (d) {
      d.render(sidebar)
    }

    self.container = sidebar

    return self
  }
})