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Mark Otto authored24e992a6
import Util from './util'/** * -------------------------------------------------------------------------- * Bootstrap (v4.0.0-alpha.3): modal.js * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) * -------------------------------------------------------------------------- */const Modal = (($) => { /** * ------------------------------------------------------------------------ * Constants * ------------------------------------------------------------------------ */ const NAME = 'modal' const VERSION = '4.0.0-alpha.3' const DATA_KEY = 'bs.modal' const EVENT_KEY = `.${DATA_KEY}` const DATA_API_KEY = '.data-api' const JQUERY_NO_CONFLICT = $.fn[NAME] const TRANSITION_DURATION = 300 const BACKDROP_TRANSITION_DURATION = 150 const ESCAPE_KEYCODE = 27 // KeyboardEvent.which value for Escape (Esc) key const Default = { backdrop : true, keyboard : true, focus : true, show : true } const DefaultType = { backdrop : '(boolean|string)', keyboard : 'boolean', focus : 'boolean', show : 'boolean' } const Event = { HIDE : `hide${EVENT_KEY}`, HIDDEN : `hidden${EVENT_KEY}`, SHOW : `show${EVENT_KEY}`, SHOWN : `shown${EVENT_KEY}`, FOCUSIN : `focusin${EVENT_KEY}`, RESIZE : `resize${EVENT_KEY}`, CLICK_DISMISS : `click.dismiss${EVENT_KEY}`, KEYDOWN_DISMISS : `keydown.dismiss${EVENT_KEY}`, MOUSEUP_DISMISS : `mouseup.dismiss${EVENT_KEY}`, MOUSEDOWN_DISMISS : `mousedown.dismiss${EVENT_KEY}`, CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}` } const ClassName = { SCROLLBAR_MEASURER : 'modal-scrollbar-measure', BACKDROP : 'modal-backdrop', OPEN : 'modal-open', FADE : 'fade', IN : 'in' } const Selector = { DIALOG : '.modal-dialog', DATA_TOGGLE : '[data-toggle="modal"]', DATA_DISMISS : '[data-dismiss="modal"]', FIXED_CONTENT : '.navbar-fixed-top, .navbar-fixed-bottom, .is-fixed'7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
}
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
class Modal {
constructor(element, config) {
this._config = this._getConfig(config)
this._element = element
this._dialog = $(element).find(Selector.DIALOG)[0]
this._backdrop = null
this._isShown = false
this._isBodyOverflowing = false
this._ignoreBackdropClick = false
this._originalBodyPadding = 0
this._scrollbarWidth = 0
}
// getters
static get VERSION() {
return VERSION
}
static get Default() {
return Default
}
// public
toggle(relatedTarget) {
return this._isShown ? this.hide() : this.show(relatedTarget)
}
show(relatedTarget) {
let showEvent = $.Event(Event.SHOW, {
relatedTarget
})
$(this._element).trigger(showEvent)
if (this._isShown || showEvent.isDefaultPrevented()) {
return
}
this._isShown = true
this._checkScrollbar()
this._setScrollbar()
$(document.body).addClass(ClassName.OPEN)
this._setEscapeEvent()
this._setResizeEvent()
$(this._element).on(
Event.CLICK_DISMISS,
Selector.DATA_DISMISS,
$.proxy(this.hide, this)
)
$(this._dialog).on(Event.MOUSEDOWN_DISMISS, () => {
$(this._element).one(Event.MOUSEUP_DISMISS, (event) => {
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if ($(event.target).is(this._element)) {
this._ignoreBackdropClick = true
}
})
})
this._showBackdrop(
$.proxy(this._showElement, this, relatedTarget)
)
}
hide(event) {
if (event) {
event.preventDefault()
}
let hideEvent = $.Event(Event.HIDE)
$(this._element).trigger(hideEvent)
if (!this._isShown || hideEvent.isDefaultPrevented()) {
return
}
this._isShown = false
this._setEscapeEvent()
this._setResizeEvent()
$(document).off(Event.FOCUSIN)
$(this._element).removeClass(ClassName.IN)
$(this._element).off(Event.CLICK_DISMISS)
$(this._dialog).off(Event.MOUSEDOWN_DISMISS)
if (Util.supportsTransitionEnd() &&
($(this._element).hasClass(ClassName.FADE))) {
$(this._element)
.one(Util.TRANSITION_END, $.proxy(this._hideModal, this))
.emulateTransitionEnd(TRANSITION_DURATION)
} else {
this._hideModal()
}
}
dispose() {
$.removeData(this._element, DATA_KEY)
$(window).off(EVENT_KEY)
$(document).off(EVENT_KEY)
$(this._element).off(EVENT_KEY)
$(this._backdrop).off(EVENT_KEY)
this._config = null
this._element = null
this._dialog = null
this._backdrop = null
this._isShown = null
this._isBodyOverflowing = null
this._ignoreBackdropClick = null
this._originalBodyPadding = null
this._scrollbarWidth = null
}
// private
_getConfig(config) {
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config = $.extend({}, Default, config)
Util.typeCheckConfig(NAME, config, DefaultType)
return config
}
_showElement(relatedTarget) {
let transition = Util.supportsTransitionEnd() &&
$(this._element).hasClass(ClassName.FADE)
if (!this._element.parentNode ||
(this._element.parentNode.nodeType !== Node.ELEMENT_NODE)) {
// don't move modals dom position
document.body.appendChild(this._element)
}
this._element.style.display = 'block'
this._element.removeAttribute('aria-hidden')
this._element.scrollTop = 0
if (transition) {
Util.reflow(this._element)
}
$(this._element).addClass(ClassName.IN)
if (this._config.focus) {
this._enforceFocus()
}
let shownEvent = $.Event(Event.SHOWN, {
relatedTarget
})
let transitionComplete = () => {
if (this._config.focus) {
this._element.focus()
}
$(this._element).trigger(shownEvent)
}
if (transition) {
$(this._dialog)
.one(Util.TRANSITION_END, transitionComplete)
.emulateTransitionEnd(TRANSITION_DURATION)
} else {
transitionComplete()
}
}
_enforceFocus() {
$(document)
.off(Event.FOCUSIN) // guard against infinite focus loop
.on(Event.FOCUSIN, (event) => {
if (document !== event.target &&
this._element !== event.target &&
(!$(this._element).has(event.target).length)) {
this._element.focus()
}
})
}
_setEscapeEvent() {
if (this._isShown && this._config.keyboard) {
$(this._element).on(Event.KEYDOWN_DISMISS, (event) => {
if (event.which === ESCAPE_KEYCODE) {
this.hide()
}
})
} else if (!this._isShown) {
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$(this._element).off(Event.KEYDOWN_DISMISS)
}
}
_setResizeEvent() {
if (this._isShown) {
$(window).on(Event.RESIZE, $.proxy(this._handleUpdate, this))
} else {
$(window).off(Event.RESIZE)
}
}
_hideModal() {
this._element.style.display = 'none'
this._element.setAttribute('aria-hidden', 'true')
this._showBackdrop(() => {
$(document.body).removeClass(ClassName.OPEN)
this._resetAdjustments()
this._resetScrollbar()
$(this._element).trigger(Event.HIDDEN)
})
}
_removeBackdrop() {
if (this._backdrop) {
$(this._backdrop).remove()
this._backdrop = null
}
}
_showBackdrop(callback) {
let animate = $(this._element).hasClass(ClassName.FADE) ?
ClassName.FADE : ''
if (this._isShown && this._config.backdrop) {
let doAnimate = Util.supportsTransitionEnd() && animate
this._backdrop = document.createElement('div')
this._backdrop.className = ClassName.BACKDROP
if (animate) {
$(this._backdrop).addClass(animate)
}
$(this._backdrop).appendTo(document.body)
$(this._element).on(Event.CLICK_DISMISS, (event) => {
if (this._ignoreBackdropClick) {
this._ignoreBackdropClick = false
return
}
if (event.target !== event.currentTarget) {
return
}
if (this._config.backdrop === 'static') {
this._element.focus()
} else {
this.hide()
}
})
if (doAnimate) {
Util.reflow(this._backdrop)
}
$(this._backdrop).addClass(ClassName.IN)
if (!callback) {
return
}
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if (!doAnimate) {
callback()
return
}
$(this._backdrop)
.one(Util.TRANSITION_END, callback)
.emulateTransitionEnd(BACKDROP_TRANSITION_DURATION)
} else if (!this._isShown && this._backdrop) {
$(this._backdrop).removeClass(ClassName.IN)
let callbackRemove = () => {
this._removeBackdrop()
if (callback) {
callback()
}
}
if (Util.supportsTransitionEnd() &&
($(this._element).hasClass(ClassName.FADE))) {
$(this._backdrop)
.one(Util.TRANSITION_END, callbackRemove)
.emulateTransitionEnd(BACKDROP_TRANSITION_DURATION)
} else {
callbackRemove()
}
} else if (callback) {
callback()
}
}
// ----------------------------------------------------------------------
// the following methods are used to handle overflowing modals
// todo (fat): these should probably be refactored out of modal.js
// ----------------------------------------------------------------------
_handleUpdate() {
this._adjustDialog()
}
_adjustDialog() {
let isModalOverflowing =
this._element.scrollHeight > document.documentElement.clientHeight
if (!this._isBodyOverflowing && isModalOverflowing) {
this._element.style.paddingLeft = `${this._scrollbarWidth}px`
}
if (this._isBodyOverflowing && !isModalOverflowing) {
this._element.style.paddingRight = `${this._scrollbarWidth}px`
}
}
_resetAdjustments() {
this._element.style.paddingLeft = ''
this._element.style.paddingRight = ''
}
_checkScrollbar() {
this._isBodyOverflowing = document.body.clientWidth < window.innerWidth
this._scrollbarWidth = this._getScrollbarWidth()
}
_setScrollbar() {
let bodyPadding = parseInt(
$(Selector.FIXED_CONTENT).css('padding-right') || 0,
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10
)
this._originalBodyPadding = document.body.style.paddingRight || ''
if (this._isBodyOverflowing) {
document.body.style.paddingRight =
`${bodyPadding + this._scrollbarWidth}px`
}
}
_resetScrollbar() {
document.body.style.paddingRight = this._originalBodyPadding
}
_getScrollbarWidth() { // thx d.walsh
let scrollDiv = document.createElement('div')
scrollDiv.className = ClassName.SCROLLBAR_MEASURER
document.body.appendChild(scrollDiv)
let scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth
document.body.removeChild(scrollDiv)
return scrollbarWidth
}
// static
static _jQueryInterface(config, relatedTarget) {
return this.each(function () {
let data = $(this).data(DATA_KEY)
let _config = $.extend(
{},
Modal.Default,
$(this).data(),
typeof config === 'object' && config
)
if (!data) {
data = new Modal(this, _config)
$(this).data(DATA_KEY, data)
}
if (typeof config === 'string') {
if (data[config] === undefined) {
throw new Error(`No method named "${config}"`)
}
data[config](relatedTarget)
} else if (_config.show) {
data.show(relatedTarget)
}
})
}
}
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
$(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
let target
let selector = Util.getSelectorFromElement(this)
if (selector) {
target = $(selector)[0]
}
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let config = $(target).data(DATA_KEY) ?
'toggle' : $.extend({}, $(target).data(), $(this).data())
if (this.tagName === 'A') {
event.preventDefault()
}
let $target = $(target).one(Event.SHOW, (showEvent) => {
if (showEvent.isDefaultPrevented()) {
// only register focus restorer if modal will actually get shown
return
}
$target.one(Event.HIDDEN, () => {
if ($(this).is(':visible')) {
this.focus()
}
})
})
Modal._jQueryInterface.call($(target), config, this)
})
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
*/
$.fn[NAME] = Modal._jQueryInterface
$.fn[NAME].Constructor = Modal
$.fn[NAME].noConflict = function () {
$.fn[NAME] = JQUERY_NO_CONFLICT
return Modal._jQueryInterface
}
return Modal
})(jQuery)
export default Modal