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/**
* --------------------------------------------------------------------------
* Bootstrap (v4.3.1): button.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
import { getjQuery } from './util/index'
import Data from './dom/data'
import EventHandler from './dom/event-handler'
import SelectorEngine from './dom/selector-engine'
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
const NAME = 'button'
const VERSION = '4.3.1'
const DATA_KEY = 'bs.button'
const EVENT_KEY = `.${DATA_KEY}`
const DATA_API_KEY = '.data-api'
const CLASS_NAME_ACTIVE = 'active'
const CLASS_NAME_DISABLED = 'disabled'
const CLASS_NAME_FOCUS = 'focus'
const SELECTOR_DATA_TOGGLE_CARROT = '[data-toggle^="button"]'
const SELECTOR_DATA_TOGGLE = '[data-toggle="buttons"]'
const SELECTOR_INPUT = 'input:not([type="hidden"])'
const SELECTOR_ACTIVE = '.active'
const SELECTOR_BUTTON = '.btn'
const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`
const EVENT_FOCUS_DATA_API = `focus${EVENT_KEY}${DATA_API_KEY}`
const EVENT_BLUR_DATA_API = `blur${EVENT_KEY}${DATA_API_KEY}`
/**
* ------------------------------------------------------------------------
* Class Definition
* ------------------------------------------------------------------------
*/
class Button {
constructor(element) {
this._element = element
Data.setData(element, DATA_KEY, this)
}
// Getters
static get VERSION() {
return VERSION
}
// Public
toggle() {
let triggerChangeEvent = true
let addAriaPressed = true
const rootElement = this._element.closest(SELECTOR_DATA_TOGGLE)
if (rootElement) {
const input = SelectorEngine.findOne(SELECTOR_INPUT, this._element)
if (input && input.type === 'radio') {
if (input.checked &&
this._element.classList.contains(CLASS_NAME_ACTIVE)) {
triggerChangeEvent = false
} else {
const activeElement = SelectorEngine.findOne(SELECTOR_ACTIVE, rootElement)
if (activeElement) {
activeElement.classList.remove(CLASS_NAME_ACTIVE)
}
}
if (triggerChangeEvent) {
if (input.hasAttribute('disabled') ||
rootElement.hasAttribute('disabled') ||
input.classList.contains(CLASS_NAME_DISABLED) ||
rootElement.classList.contains(CLASS_NAME_DISABLED)) {
return
}
input.checked = !this._element.classList.contains(CLASS_NAME_ACTIVE)
EventHandler.trigger(input, 'change')
}
input.focus()
addAriaPressed = false
}
}
if (addAriaPressed) {
this._element.setAttribute('aria-pressed',
!this._element.classList.contains(CLASS_NAME_ACTIVE))
}
if (triggerChangeEvent) {
this._element.classList.toggle(CLASS_NAME_ACTIVE)
}
}
dispose() {
Data.removeData(this._element, DATA_KEY)
this._element = null
}
// Static
static jQueryInterface(config) {
return this.each(function () {
let data = Data.getData(this, DATA_KEY)
if (!data) {
data = new Button(this)
}
if (config === 'toggle') {
data[config]()
}
})
}
static getInstance(element) {
return Data.getData(element, DATA_KEY)
}
}
/**
* ------------------------------------------------------------------------
* Data Api implementation
* ------------------------------------------------------------------------
*/
EventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, event => {
event.preventDefault()
const button = event.target.closest(SELECTOR_BUTTON)
let data = Data.getData(button, DATA_KEY)
if (!data) {
data = new Button(button)
}
data.toggle()
})
EventHandler.on(document, EVENT_FOCUS_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, event => {
const button = event.target.closest(SELECTOR_BUTTON)
if (button) {
button.classList.add(CLASS_NAME_FOCUS)
}
})
EventHandler.on(document, EVENT_BLUR_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, event => {
const button = event.target.closest(SELECTOR_BUTTON)
if (button) {
button.classList.remove(CLASS_NAME_FOCUS)
}
})
const $ = getjQuery()
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
* add .button to jQuery only if jQuery is present
*/
/* istanbul ignore if */
if ($) {
const JQUERY_NO_CONFLICT = $.fn[NAME]
$.fn[NAME] = Button.jQueryInterface
$.fn[NAME].Constructor = Button
$.fn[NAME].noConflict = () => {
$.fn[NAME] = JQUERY_NO_CONFLICT
return Button.jQueryInterface
}
}
export default Button
|
