Bulma Modal 模態窗 的 JavaScript 程式碼

'use strict';

document.addEventListener('DOMContentLoaded', function () {

  // Modals

  var rootEl = document.documentElement;
  var $modals = getAll('.modal');
  var $modalButtons = getAll('.modal-button');
  var $modalCloses = getAll('.modal-background, .modal-close, .modal-card-head .delete, .modal-card-foot .button');

  if ($modalButtons.length > 0) {
    $modalButtons.forEach(function ($el) {
      $el.addEventListener('click', function () {
        var target = $el.dataset.target;
        var $target = document.getElementById(target);
        rootEl.classList.add('is-clipped');
        $target.classList.add('is-active');
      });
    });
  }

  if ($modalCloses.length > 0) {
    $modalCloses.forEach(function ($el) {
      $el.addEventListener('click', function () {
        closeModals();
      });
    });
  }

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

  function closeModals() {
    rootEl.classList.remove('is-clipped');
    $modals.forEach(function ($el) {
      $el.classList.remove('is-active');
    });
  }

  // Functions

  function getAll(selector) {
    return Array.prototype.slice.call(document.querySelectorAll(selector), 0);
  }

});