decentralized-video-chat/public/landing/js/modal.js

;(function () {
  'use strict'
  const modals = document.getElementsByClassName('modal')
  const modalTriggers = document.getElementsByClassName('modal-trigger')

  function openModal (el) {
    if (el) {
      document.body.classList.add('modal-is-active')
      el.classList.add('is-active')
    }
  }

  function closeModals () {
    document.body.classList.remove('modal-is-active')
    for (let i = 0; i < modals.length; i++) {
      modals[i].classList.remove('is-active')
    }
  }

  if (modals.length > 0 && modalTriggers.length > 0) {
    for (let i = 0; i < modalTriggers.length; i++) {
      let modalTrigger = modalTriggers[i]
      let modal = document.getElementById(modalTrigger.getAttribute('aria-controls'))
      if (modal) {
        // Modal video
        if (modalTrigger.hasAttribute('data-video')) {
          if (modal.querySelector('iframe') !== null) {
            modal.querySelector('iframe').setAttribute('src', modalTrigger.getAttribute('data-video'))
          } else if (modal.querySelector('video') !== null) {
            modal.querySelector('video').setAttribute('src', modalTrigger.getAttribute('data-video'))
          }
        }
        modalTrigger.addEventListener('click', function (e) {
          e.preventDefault()
          if (modalTrigger.hasAttribute('aria-controls')) {
            openModal(modal)
          }
        })
      }
    }
  }

  document.addEventListener('click', function (e) {
    if (e.target.classList.contains('modal') || e.target.classList.contains('modal-close-trigger')) {
      e.preventDefault()
      closeModals()
    }
  })

  document.addEventListener('keydown', function (event) {
    var e = event || window.event
    if (e.keyCode === 27) {
      closeModals()
    }
  })
}())