1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/**
* --------------------------------------------------------------------------
* Bootstrap (v4.5.0): button.js
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* --------------------------------------------------------------------------
*/
import $ from 'jquery'
/**
* ------------------------------------------------------------------------
* Constants
* ------------------------------------------------------------------------
*/
const NAME = 'button'
const VERSION = '4.5.0'
const DATA_KEY = 'bs.button'
const EVENT_KEY = `.${DATA_KEY}`
const DATA_API_KEY = '.data-api'
const JQUERY_NO_CONFLICT = $.fn[NAME]
const CLASS_NAME_ACTIVE = 'active'
const CLASS_NAME_BUTTON = 'btn'
const CLASS_NAME_FOCUS = 'focus'
const SELECTOR_DATA_TOGGLE_CARROT = '[data-toggle^="button"]'
const SELECTOR_DATA_TOGGLES = '[data-toggle="buttons"]'
const SELECTOR_DATA_TOGGLE = '[data-toggle="button"]'
const SELECTOR_DATA_TOGGLES_BUTTONS = '[data-toggle="buttons"] .btn'
const SELECTOR_INPUT = 'input:not([type="hidden"])'
const SELECTOR_ACTIVE = '.active'
const SELECTOR_BUTTON = '.btn'
const EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`
const EVENT_FOCUS_BLUR_DATA_API = `focus${EVENT_KEY}${DATA_API_KEY} ` +
`blur${EVENT_KEY}${DATA_API_KEY}`
const EVENT_LOAD_DATA_API = `load${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(CLASS_NAME_ACTIVE)) {
triggerChangeEvent = false
} else {
const activeElement = rootElement.querySelector(SELECTOR_ACTIVE)
if (activeElement) {
$(activeElement).removeClass(CLASS_NAME_ACTIVE)
}
}
}
if (triggerChangeEvent) {
// if it's not a radio button or checkbox don't add a pointless/invalid checked property to the input
if (input.type === 'checkbox' || input.type === 'radio') {
input.checked = !this._element.classList.contains(CLASS_NAME_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(CLASS_NAME_ACTIVE))
}
if (triggerChangeEvent) {
$(this._element).toggleClass(CLASS_NAME_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
* ------------------------------------------------------------------------
*/
$(document)
.on(EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, (event) => {
let button = event.target
const initialButton = button
if (!$(button).hasClass(CLASS_NAME_BUTTON)) {
button = $(button).closest(SELECTOR_BUTTON)[0]
}
if (!button || button.hasAttribute('disabled') || button.classList.contains('disabled')) {
event.preventDefault() // work around Firefox bug #1540995
} else {
const inputBtn = button.querySelector(SELECTOR_INPUT)
if (inputBtn && (inputBtn.hasAttribute('disabled') || inputBtn.classList.contains('disabled'))) {
event.preventDefault() // work around Firefox bug #1540995
return
}
if (initialButton.tagName === 'LABEL' && inputBtn && inputBtn.type === 'checkbox') {
event.preventDefault() // work around event sent to label and input
}
Button._jQueryInterface.call($(button), 'toggle')
}
})
.on(EVENT_FOCUS_BLUR_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, (event) => {
const button = $(event.target).closest(SELECTOR_BUTTON)[0]
$(button).toggleClass(CLASS_NAME_FOCUS, /^focus(in)?$/.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(CLASS_NAME_ACTIVE)
} else {
button.classList.remove(CLASS_NAME_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(CLASS_NAME_ACTIVE)
} else {
button.classList.remove(CLASS_NAME_ACTIVE)
}
}
})
/**
* ------------------------------------------------------------------------
* jQuery
* ------------------------------------------------------------------------
*/
$.fn[NAME] = Button._jQueryInterface
$.fn[NAME].Constructor = Button
$.fn[NAME].noConflict = () => {
$.fn[NAME] = JQUERY_NO_CONFLICT
return Button._jQueryInterface
}
export default Button
|
