[6a3a178] | 1 | /**
|
---|
| 2 | * --------------------------------------------------------------------------
|
---|
| 3 | * Bootstrap (v5.1.3): util/backdrop.js
|
---|
| 4 | * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
|
---|
| 5 | * --------------------------------------------------------------------------
|
---|
| 6 | */
|
---|
| 7 |
|
---|
| 8 | import EventHandler from '../dom/event-handler'
|
---|
| 9 | import { execute, executeAfterTransition, getElement, reflow, typeCheckConfig } from './index'
|
---|
| 10 |
|
---|
| 11 | const Default = {
|
---|
| 12 | className: 'modal-backdrop',
|
---|
| 13 | isVisible: true, // if false, we use the backdrop helper without adding any element to the dom
|
---|
| 14 | isAnimated: false,
|
---|
| 15 | rootElement: 'body', // give the choice to place backdrop under different elements
|
---|
| 16 | clickCallback: null
|
---|
| 17 | }
|
---|
| 18 |
|
---|
| 19 | const DefaultType = {
|
---|
| 20 | className: 'string',
|
---|
| 21 | isVisible: 'boolean',
|
---|
| 22 | isAnimated: 'boolean',
|
---|
| 23 | rootElement: '(element|string)',
|
---|
| 24 | clickCallback: '(function|null)'
|
---|
| 25 | }
|
---|
| 26 | const NAME = 'backdrop'
|
---|
| 27 | const CLASS_NAME_FADE = 'fade'
|
---|
| 28 | const CLASS_NAME_SHOW = 'show'
|
---|
| 29 |
|
---|
| 30 | const EVENT_MOUSEDOWN = `mousedown.bs.${NAME}`
|
---|
| 31 |
|
---|
| 32 | class Backdrop {
|
---|
| 33 | constructor(config) {
|
---|
| 34 | this._config = this._getConfig(config)
|
---|
| 35 | this._isAppended = false
|
---|
| 36 | this._element = null
|
---|
| 37 | }
|
---|
| 38 |
|
---|
| 39 | show(callback) {
|
---|
| 40 | if (!this._config.isVisible) {
|
---|
| 41 | execute(callback)
|
---|
| 42 | return
|
---|
| 43 | }
|
---|
| 44 |
|
---|
| 45 | this._append()
|
---|
| 46 |
|
---|
| 47 | if (this._config.isAnimated) {
|
---|
| 48 | reflow(this._getElement())
|
---|
| 49 | }
|
---|
| 50 |
|
---|
| 51 | this._getElement().classList.add(CLASS_NAME_SHOW)
|
---|
| 52 |
|
---|
| 53 | this._emulateAnimation(() => {
|
---|
| 54 | execute(callback)
|
---|
| 55 | })
|
---|
| 56 | }
|
---|
| 57 |
|
---|
| 58 | hide(callback) {
|
---|
| 59 | if (!this._config.isVisible) {
|
---|
| 60 | execute(callback)
|
---|
| 61 | return
|
---|
| 62 | }
|
---|
| 63 |
|
---|
| 64 | this._getElement().classList.remove(CLASS_NAME_SHOW)
|
---|
| 65 |
|
---|
| 66 | this._emulateAnimation(() => {
|
---|
| 67 | this.dispose()
|
---|
| 68 | execute(callback)
|
---|
| 69 | })
|
---|
| 70 | }
|
---|
| 71 |
|
---|
| 72 | // Private
|
---|
| 73 |
|
---|
| 74 | _getElement() {
|
---|
| 75 | if (!this._element) {
|
---|
| 76 | const backdrop = document.createElement('div')
|
---|
| 77 | backdrop.className = this._config.className
|
---|
| 78 | if (this._config.isAnimated) {
|
---|
| 79 | backdrop.classList.add(CLASS_NAME_FADE)
|
---|
| 80 | }
|
---|
| 81 |
|
---|
| 82 | this._element = backdrop
|
---|
| 83 | }
|
---|
| 84 |
|
---|
| 85 | return this._element
|
---|
| 86 | }
|
---|
| 87 |
|
---|
| 88 | _getConfig(config) {
|
---|
| 89 | config = {
|
---|
| 90 | ...Default,
|
---|
| 91 | ...(typeof config === 'object' ? config : {})
|
---|
| 92 | }
|
---|
| 93 |
|
---|
| 94 | // use getElement() with the default "body" to get a fresh Element on each instantiation
|
---|
| 95 | config.rootElement = getElement(config.rootElement)
|
---|
| 96 | typeCheckConfig(NAME, config, DefaultType)
|
---|
| 97 | return config
|
---|
| 98 | }
|
---|
| 99 |
|
---|
| 100 | _append() {
|
---|
| 101 | if (this._isAppended) {
|
---|
| 102 | return
|
---|
| 103 | }
|
---|
| 104 |
|
---|
| 105 | this._config.rootElement.append(this._getElement())
|
---|
| 106 |
|
---|
| 107 | EventHandler.on(this._getElement(), EVENT_MOUSEDOWN, () => {
|
---|
| 108 | execute(this._config.clickCallback)
|
---|
| 109 | })
|
---|
| 110 |
|
---|
| 111 | this._isAppended = true
|
---|
| 112 | }
|
---|
| 113 |
|
---|
| 114 | dispose() {
|
---|
| 115 | if (!this._isAppended) {
|
---|
| 116 | return
|
---|
| 117 | }
|
---|
| 118 |
|
---|
| 119 | EventHandler.off(this._element, EVENT_MOUSEDOWN)
|
---|
| 120 |
|
---|
| 121 | this._element.remove()
|
---|
| 122 | this._isAppended = false
|
---|
| 123 | }
|
---|
| 124 |
|
---|
| 125 | _emulateAnimation(callback) {
|
---|
| 126 | executeAfterTransition(callback, this._getElement(), this._config.isAnimated)
|
---|
| 127 | }
|
---|
| 128 | }
|
---|
| 129 |
|
---|
| 130 | export default Backdrop
|
---|