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/**
* --------------------------------------------------------------------------
* Bootstrap (v4.4.1): button.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
import $ from 'jquery'
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
const NAME = 'button'
const VERSION = '4.4.1'
const DATA_KEY = 'bs.button'
const EVENT_KEY = `.${DATA_KEY}`
const DATA_API_KEY = '.data-api'
const JQUERY_NO_CONFLICT = $.fn[NAME]
const ClassName = {
ACTIVE : 'active',
BUTTON : 'btn',
FOCUS : 'focus'
}
const Selector = {
DATA_TOGGLE_CARROT : '[data-toggle^="button"]',
DATA_TOGGLES : '[data-toggle="buttons"]',
DATA_TOGGLE : '[data-toggle="button"]',
DATA_TOGGLES_BUTTONS : '[data-toggle="buttons"] .btn',
INPUT : 'input:not([type="hidden"])',
ACTIVE : '.active',
BUTTON : '.btn'
}
const Event = {
CLICK_DATA_API : `click${EVENT_KEY}${DATA_API_KEY}`,
FOCUS_BLUR_DATA_API : `focus${EVENT_KEY}${DATA_API_KEY} ` +
`blur${EVENT_KEY}${DATA_API_KEY}`,
LOAD_DATA_API : `load${EVENT_KEY}${DATA_API_KEY}`
}
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
class Button {
constructor(element) {
this._element = element
}
// Getters
static get VERSION() {
return VERSION
}
// Public
toggle() {
let triggerChangeEvent = true
let addAriaPressed = true
const rootElement = $(this._element).closest(
Selector.DATA_TOGGLES
)[0]
if (rootElement) {
const input = this._element.querySelector(Selector.INPUT)
if (input) {
if (input.type === 'radio') {
if (input.checked &&
this._element.classList.contains(ClassName.ACTIVE)) {
triggerChangeEvent = false
} else {
const activeElement = rootElement.querySelector(Selector.ACTIVE)
if (activeElement) {
$(activeElement).removeClass(ClassName.ACTIVE)
}
}
} else if (input.type === 'checkbox') {
if (this._element.tagName === 'LABEL' && input.checked === this._element.classList.contains(ClassName.ACTIVE)) {
triggerChangeEvent = false
}
} else {
// if it's not a radio button or checkbox don't add a pointless/invalid checked property to the input
triggerChangeEvent = false
}
if (triggerChangeEvent) {
input.checked = !this._element.classList.contains(ClassName.ACTIVE)
$(input).trigger('change')
}
input.focus()
addAriaPressed = false
}
}
if (!(this._element.hasAttribute('disabled') || this._element.classList.contains('disabled'))) {
if (addAriaPressed) {
this._element.setAttribute('aria-pressed',
!this._element.classList.contains(ClassName.ACTIVE))
}
if (triggerChangeEvent) {
$(this._element).toggleClass(ClassName.ACTIVE)
}
}
}
dispose() {
$.removeData(this._element, DATA_KEY)
this._element = null
}
// Static
static _jQueryInterface(config) {
return this.each(function () {
let data = $(this).data(DATA_KEY)
if (!data) {
data = new Button(this)
$(this).data(DATA_KEY, data)
}
if (config === 'toggle') {
data[config]()
}
})
}
}
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
$(document)
.on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE_CARROT, (event) => {
let button = event.target
if (!$(button).hasClass(ClassName.BUTTON)) {
button = $(button).closest(Selector.BUTTON)[0]
}
if (!button || button.hasAttribute('disabled') || button.classList.contains('disabled')) {
event.preventDefault() // work around Firefox bug #1540995
} else {
const inputBtn = button.querySelector(Selector.INPUT)
if (inputBtn && (inputBtn.hasAttribute('disabled') || inputBtn.classList.contains('disabled'))) {
event.preventDefault() // work around Firefox bug #1540995
return
}
Button._jQueryInterface.call($(button), 'toggle')
}
})
.on(Event.FOCUS_BLUR_DATA_API, Selector.DATA_TOGGLE_CARROT, (event) => {
const button = $(event.target).closest(Selector.BUTTON)[0]
$(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type))
})
$(window).on(Event.LOAD_DATA_API, () => {
// ensure correct active class is set to match the controls' actual values/states
// find all checkboxes/readio buttons inside data-toggle groups
let buttons = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLES_BUTTONS))
for (let i = 0, len = buttons.length; i < len; i++) {
const button = buttons[i]
const input = button.querySelector(Selector.INPUT)
if (input.checked || input.hasAttribute('checked')) {
button.classList.add(ClassName.ACTIVE)
} else {
button.classList.remove(ClassName.ACTIVE)
}
}
// find all button toggles
buttons = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE))
for (let i = 0, len = buttons.length; i < len; i++) {
const button = buttons[i]
if (button.getAttribute('aria-pressed') === 'true') {
button.classList.add(ClassName.ACTIVE)
} else {
button.classList.remove(ClassName.ACTIVE)
}
}
})
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
*/
$.fn[NAME] = Button._jQueryInterface
$.fn[NAME].Constructor = Button
$.fn[NAME].noConflict = () => {
$.fn[NAME] = JQUERY_NO_CONFLICT
return Button._jQueryInterface
}
export default Button
|
