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/**
* --------------------------------------------------------------------------
* Bootstrap (v5.0.1): modal.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
* --------------------------------------------------------------------------
*/
import {
defineJQueryPlugin,
emulateTransitionEnd,
getElementFromSelector,
getTransitionDurationFromElement,
isRTL,
isVisible,
reflow,
typeCheckConfig
} from './util/index'
import EventHandler from './dom/event-handler'
import Manipulator from './dom/manipulator'
import SelectorEngine from './dom/selector-engine'
import { getWidth as getScrollBarWidth, hide as scrollBarHide, reset as scrollBarReset } from './util/scrollbar'
import BaseComponent from './base-component'
import Backdrop from './util/backdrop'
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
const NAME = 'modal'
const DATA_KEY = 'bs.modal'
const EVENT_KEY = `.${DATA_KEY}`
const DATA_API_KEY = '.data-api'
const ESCAPE_KEY = 'Escape'
const Default = {
backdrop: true,
keyboard: true,
focus: true
}
const DefaultType = {
backdrop: '(boolean|string)',
keyboard: 'boolean',
focus: 'boolean'
}
const EVENT_HIDE = `hide${EVENT_KEY}`
const EVENT_HIDE_PREVENTED = `hidePrevented${EVENT_KEY}`
const EVENT_HIDDEN = `hidden${EVENT_KEY}`
const EVENT_SHOW = `show${EVENT_KEY}`
const EVENT_SHOWN = `shown${EVENT_KEY}`
const EVENT_FOCUSIN = `focusin${EVENT_KEY}`
const EVENT_RESIZE = `resize${EVENT_KEY}`
const EVENT_CLICK_DISMISS = `click.dismiss${EVENT_KEY}`
const EVENT_KEYDOWN_DISMISS = `keydown.dismiss${EVENT_KEY}`
const EVENT_MOUSEUP_DISMISS = `mouseup.dismiss${EVENT_KEY}`
const EVENT_MOUSEDOWN_DISMISS = `mousedown.dismiss${EVENT_KEY}`
const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`
const CLASS_NAME_OPEN = 'modal-open'
const CLASS_NAME_FADE = 'fade'
const CLASS_NAME_SHOW = 'show'
const CLASS_NAME_STATIC = 'modal-static'
const SELECTOR_DIALOG = '.modal-dialog'
const SELECTOR_MODAL_BODY = '.modal-body'
const SELECTOR_DATA_TOGGLE = '[data-bs-toggle="modal"]'
const SELECTOR_DATA_DISMISS = '[data-bs-dismiss="modal"]'
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
class Modal extends BaseComponent {
constructor(element, config) {
super(element)
this._config = this._getConfig(config)
this._dialog = SelectorEngine.findOne(SELECTOR_DIALOG, this._element)
this._backdrop = this._initializeBackDrop()
this._isShown = false
this._ignoreBackdropClick = false
this._isTransitioning = false
}
// Getters
static get Default() {
return Default
}
static get NAME() {
return NAME
}
// Public
toggle(relatedTarget) {
return this._isShown ? this.hide() : this.show(relatedTarget)
}
show(relatedTarget) {
if (this._isShown || this._isTransitioning) {
return
}
const showEvent = EventHandler.trigger(this._element, EVENT_SHOW, {
relatedTarget
})
if (showEvent.defaultPrevented) {
return
}
this._isShown = true
if (this._isAnimated()) {
this._isTransitioning = true
}
scrollBarHide()
document.body.classList.add(CLASS_NAME_OPEN)
this._adjustDialog()
this._setEscapeEvent()
this._setResizeEvent()
EventHandler.on(this._element, EVENT_CLICK_DISMISS, SELECTOR_DATA_DISMISS, event => this.hide(event))
EventHandler.on(this._dialog, EVENT_MOUSEDOWN_DISMISS, () => {
EventHandler.one(this._element, EVENT_MOUSEUP_DISMISS, event => {
if (event.target === this._element) {
this._ignoreBackdropClick = true
}
})
})
this._showBackdrop(() => this._showElement(relatedTarget))
}
hide(event) {
if (event && ['A', 'AREA'].includes(event.target.tagName)) {
event.preventDefault()
}
if (!this._isShown || this._isTransitioning) {
return
}
const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE)
if (hideEvent.defaultPrevented) {
return
}
this._isShown = false
const isAnimated = this._isAnimated()
if (isAnimated) {
this._isTransitioning = true
}
this._setEscapeEvent()
this._setResizeEvent()
EventHandler.off(document, EVENT_FOCUSIN)
this._element.classList.remove(CLASS_NAME_SHOW)
EventHandler.off(this._element, EVENT_CLICK_DISMISS)
EventHandler.off(this._dialog, EVENT_MOUSEDOWN_DISMISS)
this._queueCallback(() => this._hideModal(), this._element, isAnimated)
}
dispose() {
[window, this._dialog]
.forEach(htmlElement => EventHandler.off(htmlElement, EVENT_KEY))
this._backdrop.dispose()
super.dispose()
/**
* `document` has 2 events `EVENT_FOCUSIN` and `EVENT_CLICK_DATA_API`
* Do not move `document` in `htmlElements` array
* It will remove `EVENT_CLICK_DATA_API` event that should remain
*/
EventHandler.off(document, EVENT_FOCUSIN)
}
handleUpdate() {
this._adjustDialog()
}
// Private
_initializeBackDrop() {
return new Backdrop({
isVisible: Boolean(this._config.backdrop), // 'static' option will be translated to true, and booleans will keep their value
isAnimated: this._isAnimated()
})
}
_getConfig(config) {
config = {
...Default,
...Manipulator.getDataAttributes(this._element),
...config
}
typeCheckConfig(NAME, config, DefaultType)
return config
}
_showElement(relatedTarget) {
const isAnimated = this._isAnimated()
const modalBody = SelectorEngine.findOne(SELECTOR_MODAL_BODY, this._dialog)
if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
// Don't move modal's DOM position
document.body.appendChild(this._element)
}
this._element.style.display = 'block'
this._element.removeAttribute('aria-hidden')
this._element.setAttribute('aria-modal', true)
this._element.setAttribute('role', 'dialog')
this._element.scrollTop = 0
if (modalBody) {
modalBody.scrollTop = 0
}
if (isAnimated) {
reflow(this._element)
}
this._element.classList.add(CLASS_NAME_SHOW)
if (this._config.focus) {
this._enforceFocus()
}
const transitionComplete = () => {
if (this._config.focus) {
this._element.focus()
}
this._isTransitioning = false
EventHandler.trigger(this._element, EVENT_SHOWN, {
relatedTarget
})
}
this._queueCallback(transitionComplete, this._dialog, isAnimated)
}
_enforceFocus() {
EventHandler.off(document, EVENT_FOCUSIN) // guard against infinite focus loop
EventHandler.on(document, EVENT_FOCUSIN, event => {
if (document !== event.target &&
this._element !== event.target &&
!this._element.contains(event.target)) {
this._element.focus()
}
})
}
_setEscapeEvent() {
if (this._isShown) {
EventHandler.on(this._element, EVENT_KEYDOWN_DISMISS, event => {
if (this._config.keyboard && event.key === ESCAPE_KEY) {
event.preventDefault()
this.hide()
} else if (!this._config.keyboard && event.key === ESCAPE_KEY) {
this._triggerBackdropTransition()
}
})
} else {
EventHandler.off(this._element, EVENT_KEYDOWN_DISMISS)
}
}
_setResizeEvent() {
if (this._isShown) {
EventHandler.on(window, EVENT_RESIZE, () => this._adjustDialog())
} else {
EventHandler.off(window, EVENT_RESIZE)
}
}
_hideModal() {
this._element.style.display = 'none'
this._element.setAttribute('aria-hidden', true)
this._element.removeAttribute('aria-modal')
this._element.removeAttribute('role')
this._isTransitioning = false
this._backdrop.hide(() => {
document.body.classList.remove(CLASS_NAME_OPEN)
this._resetAdjustments()
scrollBarReset()
EventHandler.trigger(this._element, EVENT_HIDDEN)
})
}
_showBackdrop(callback) {
EventHandler.on(this._element, EVENT_CLICK_DISMISS, event => {
if (this._ignoreBackdropClick) {
this._ignoreBackdropClick = false
return
}
if (event.target !== event.currentTarget) {
return
}
if (this._config.backdrop === true) {
this.hide()
} else if (this._config.backdrop === 'static') {
this._triggerBackdropTransition()
}
})
this._backdrop.show(callback)
}
_isAnimated() {
return this._element.classList.contains(CLASS_NAME_FADE)
}
_triggerBackdropTransition() {
const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE_PREVENTED)
if (hideEvent.defaultPrevented) {
return
}
const isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight
if (!isModalOverflowing) {
this._element.style.overflowY = 'hidden'
}
this._element.classList.add(CLASS_NAME_STATIC)
const modalTransitionDuration = getTransitionDurationFromElement(this._dialog)
EventHandler.off(this._element, 'transitionend')
EventHandler.one(this._element, 'transitionend', () => {
this._element.classList.remove(CLASS_NAME_STATIC)
if (!isModalOverflowing) {
EventHandler.one(this._element, 'transitionend', () => {
this._element.style.overflowY = ''
})
emulateTransitionEnd(this._element, modalTransitionDuration)
}
})
emulateTransitionEnd(this._element, modalTransitionDuration)
this._element.focus()
}
// ----------------------------------------------------------------------
// the following methods are used to handle overflowing modals
// ----------------------------------------------------------------------
_adjustDialog() {
const isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight
const scrollbarWidth = getScrollBarWidth()
const isBodyOverflowing = scrollbarWidth > 0
if ((!isBodyOverflowing && isModalOverflowing && !isRTL()) || (isBodyOverflowing && !isModalOverflowing && isRTL())) {
this._element.style.paddingLeft = `${scrollbarWidth}px`
}
if ((isBodyOverflowing && !isModalOverflowing && !isRTL()) || (!isBodyOverflowing && isModalOverflowing && isRTL())) {
this._element.style.paddingRight = `${scrollbarWidth}px`
}
}
_resetAdjustments() {
this._element.style.paddingLeft = ''
this._element.style.paddingRight = ''
}
// Static
static jQueryInterface(config, relatedTarget) {
return this.each(function () {
const data = Modal.getInstance(this) || new Modal(this, typeof config === 'object' ? config : {})
if (typeof config !== 'string') {
return
}
if (typeof data[config] === 'undefined') {
throw new TypeError(`No method named "${config}"`)
}
data[config](relatedTarget)
})
}
}
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
const target = getElementFromSelector(this)
if (['A', 'AREA'].includes(this.tagName)) {
event.preventDefault()
}
EventHandler.one(target, EVENT_SHOW, showEvent => {
if (showEvent.defaultPrevented) {
// only register focus restorer if modal will actually get shown
return
}
EventHandler.one(target, EVENT_HIDDEN, () => {
if (isVisible(this)) {
this.focus()
}
})
})
const data = Modal.getInstance(target) || new Modal(target)
data.toggle(this)
})
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
* add .Modal to jQuery only if jQuery is present
*/
defineJQueryPlugin(Modal)
export default Modal
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