Refactor/extract static methods

src/globalState.js

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+import defaultParams from './utils/params.js'
+
+export default {
+  popupParams: Object.assign({}, defaultParams)
+}

src/staticMethods.js

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+export * from './staticMethods/argsToParams'
+export * from './staticMethods/adaptInputValidator'
+export * from './staticMethods/close'
+export * from './staticMethods/dom'
+export * from './staticMethods/mixin'
+export * from './staticMethods/queue'
+export * from './staticMethods/set-reset-defaults'
+export * from './staticMethods/showLoading'
+export {
+  isValidParameter,
+  isDeprecatedParameter
+} from './utils/params'

src/staticMethods/adaptInputValidator.js

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+/**
+ * Adapt a legacy inputValidator for use with expectRejections=false
+ */
+export const adaptInputValidator = (legacyValidator) => {
+  return function adaptedInputValidator (inputValue, extraParams) {
+    return legacyValidator.call(this, inputValue, extraParams)
+      .then(() => undefined, validationError => validationError)
+  }
+}

src/staticMethods/argsToParams.js

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+import { error } from '../utils/utils.js'
+
+export const argsToParams = (args) => {
+  const params = {}
+  switch (typeof args[0]) {
+    case 'string':
+      ['title', 'html', 'type'].forEach((name, index) => {
+        if (args[index] !== undefined) {
+          params[name] = args[index]
+        }
+      })
+      break
+
+    case 'object':
+      Object.assign(params, args[0])
+      break
+
+    default:
+      error('Unexpected type of argument! Expected "string" or "object", got ' + typeof args[0])
+      return false
+  }
+  return params
+}

src/staticMethods/close.js

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+import {undoScrollbar} from '../utils/scrollbarFix'
+import {undoIOSfix} from '../utils/iosFix'
+import * as dom from '../utils/dom/index'
+import { swalClasses } from '../utils/classes.js'
+import globalState from '../globalState'
+
+/*
+ * Global function to close sweetAlert
+ */
+const close = (onComplete) => {
+  const container = dom.getContainer()
+  const popup = dom.getPopup()
+  if (!popup) {
+    return
+  }
+  dom.removeClass(popup, swalClasses.show)
+  dom.addClass(popup, swalClasses.hide)
+  clearTimeout(popup.timeout)
+
+  if (!dom.isToast()) {
+    dom.resetPrevState()
+    window.onkeydown = globalState.previousWindowKeyDown
+    globalState.windowOnkeydownOverridden = false
+  }
+
+  const removePopupAndResetState = () => {
+    if (container.parentNode) {
+      container.parentNode.removeChild(container)
+    }
+    dom.removeClass(
+      [document.documentElement, document.body],
+      [
+        swalClasses.shown,
+        swalClasses['no-backdrop'],
+        swalClasses['has-input'],
+        swalClasses['toast-shown']
+      ]
+    )
+
+    if (dom.isModal()) {
+      undoScrollbar()
+      undoIOSfix()
+    }
+  }
+
+  // If animation is supported, animate
+  if (dom.animationEndEvent && !dom.hasClass(popup, swalClasses.noanimation)) {
+    popup.addEventListener(dom.animationEndEvent, function swalCloseEventFinished () {
+      popup.removeEventListener(dom.animationEndEvent, swalCloseEventFinished)
+      if (dom.hasClass(popup, swalClasses.hide)) {
+        removePopupAndResetState()
+      }
+    })
+  } else {
+    // Otherwise, remove immediately
+    removePopupAndResetState()
+  }
+  if (onComplete !== null && typeof onComplete === 'function') {
+    setTimeout(() => {
+      onComplete(popup)
+    })
+  }
+}
+export {
+  close,
+  close as closePopup,
+  close as closeModal,
+  close as closeToast
+}

src/staticMethods/dom.js

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+import * as dom from '../utils/dom/index'
+
+export {
+  getTitle,
+  getContent,
+  getImage,
+  getButtonsWrapper,
+  getActions,
+  getConfirmButton,
+  getCancelButton,
+  getFooter,
+  isLoading
+} from '../utils/dom/index'
+
+/*
+ * Global function to determine if swal2 popup is shown
+ */
+export const isVisible = () => {
+  return !!dom.getPopup()
+}
+
+/*
+ * Global function to click 'Confirm' button
+ */
+export const clickConfirm = () => dom.getConfirmButton().click()
+
+/*
+ * Global function to click 'Cancel' button
+ */
+export const clickCancel = () => dom.getCancelButton().click()

src/staticMethods/mixin.js

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+/**
+ * Returns a wrapped instance of `swal` containing `params` as defaults.
+ * Useful for reusing swal configuration.
+ *
+ * For example:
+ *
+ * Before:
+ * const textPromptOptions = { input: 'text', showCancelButton: true }
+ * const {value: firstName} = await swal({ ...textPromptOptions, title: 'What is your first name?' })
+ * const {value: lastName} = await swal({ ...textPromptOptions, title: 'What is your last name?' })
+ *
+ * After:
+ * const myTextPrompt = swal.mixin({ input: 'text', showCancelButton: true })
+ * const {value: firstName} = await myTextPrompt('What is your first name?')
+ * const {value: lastName} = await myTextPrompt('What is your last name?')
+ *
+ * @param params
+ */
+export const mixin = function (params) {
+  const parentSwal = this
+  const childSwal = (...args) =>
+    parentSwal(Object.assign({}, params, parentSwal.argsToParams(args)))
+  return Object.assign(childSwal, parentSwal)
+}

src/staticMethods/queue.js

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+// private global state for the queue feature
+let currentSteps = []
+
+/*
+ * Global function for chaining sweetAlert popups
+ */
+export const queue = function (steps) {
+  const swal = this
+  currentSteps = steps
+  const resetQueue = () => {
+    currentSteps = []
+    document.body.removeAttribute('data-swal2-queue-step')
+  }
+  let queueResult = []
+  return new Promise((resolve, reject) => {
+    (function step (i, callback) {
+      if (i < currentSteps.length) {
+        document.body.setAttribute('data-swal2-queue-step', i)
+
+        swal(currentSteps[i]).then((result) => {
+          if (typeof result.value !== 'undefined') {
+            queueResult.push(result.value)
+            step(i + 1, callback)
+          } else {
+            resetQueue()
+            resolve({dismiss: result.dismiss})
+          }
+        })
+      } else {
+        resetQueue()
+        resolve({value: queueResult})
+      }
+    })(0)
+  })
+}
+
+/*
+ * Global function for getting the index of current popup in queue
+ */
+export const getQueueStep = () => document.body.getAttribute('data-swal2-queue-step')
+
+/*
+ * Global function for inserting a popup to the queue
+ */
+export const insertQueueStep = (step, index) => {
+  if (index && index < currentSteps.length) {
+    return currentSteps.splice(index, 0, step)
+  }
+  return currentSteps.push(step)
+}
+
+/*
+ * Global function for deleting a popup from the queue
+ */
+export const deleteQueueStep = (index) => {
+  if (typeof currentSteps[index] !== 'undefined') {
+    currentSteps.splice(index, 1)
+  }
+}

src/staticMethods/set-reset-defaults.js

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+import { error } from '../utils/utils'
+import defaultParams, {showWarningsForParams, isValidParameter} from '../utils/params'
+import globalState from '../globalState'
+
+/**
+ * Set default params for each popup
+ * @param {Object} userParams
+ */
+export const setDefaults = (userParams) => {
+  if (!userParams || typeof userParams !== 'object') {
+    return error('the argument for setDefaults() is required and has to be a object')
+  }
+
+  showWarningsForParams(userParams)
+
+  // assign valid params from userParams to popupParams
+  for (const param in userParams) {
+    if (isValidParameter(param)) {
+      globalState.popupParams[param] = userParams[param]
+    }
+  }
+}
+
+/**
+ * Reset default params for each popup
+ */
+export const resetDefaults = () => {
+  globalState.popupParams = Object.assign({}, defaultParams)
+}

src/staticMethods/showLoading.js

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+import * as dom from '../utils/dom/index'
+import sweetAlert from '../sweetalert2'
+import { swalClasses } from '../utils/classes'
+
+/**
+ * Show spinner instead of Confirm button and disable Cancel button
+ */
+const showLoading = () => {
+  let popup = dom.getPopup()
+  if (!popup) {
+    sweetAlert('')
+  }
+  popup = dom.getPopup()
+  const actions = dom.getActions()
+  const confirmButton = dom.getConfirmButton()
+  const cancelButton = dom.getCancelButton()
+
+  dom.show(actions)
+  dom.show(confirmButton)
+  dom.addClass([popup, actions], swalClasses.loading)
+  confirmButton.disabled = true
+  cancelButton.disabled = true
+
+  popup.setAttribute('data-loading', true)
+  popup.setAttribute('aria-busy', true)
+  popup.focus()
+}
+
+export {
+  showLoading,
+  showLoading as enableLoading
+}