4cd4fd28
 郭伟龙
feat: 初始化项目
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import { extend } from '../../vue'
import { NAME_BUTTON_TOOLBAR } from '../../constants/components'
import { PROP_TYPE_BOOLEAN } from '../../constants/props'
import { CODE_DOWN, CODE_LEFT, CODE_RIGHT, CODE_UP } from '../../constants/key-codes'
import { attemptFocus, contains, isVisible, selectAll } from '../../utils/dom'
import { stopEvent } from '../../utils/events'
import { makeProp, makePropsConfigurable } from '../../utils/props'
import { normalizeSlotMixin } from '../../mixins/normalize-slot'
// --- Constants ---
const ITEM_SELECTOR = [
'.btn:not(.disabled):not([disabled]):not(.dropdown-item)',
'.form-control:not(.disabled):not([disabled])',
'select:not(.disabled):not([disabled])',
'input[type="checkbox"]:not(.disabled)',
'input[type="radio"]:not(.disabled)'
].join(',')
// --- Props ---
export const props = makePropsConfigurable(
{
justify: makeProp(PROP_TYPE_BOOLEAN, false),
keyNav: makeProp(PROP_TYPE_BOOLEAN, false)
},
NAME_BUTTON_TOOLBAR
)
// --- Main component ---
// @vue/component
export const BButtonToolbar = /*#__PURE__*/ extend({
name: NAME_BUTTON_TOOLBAR,
mixins: [normalizeSlotMixin],
props,
mounted() {
// Pre-set the tabindexes if the markup does not include
// `tabindex="-1"` on the toolbar items
if (this.keyNav) {
this.getItems()
}
},
methods: {
getItems() {
const items = selectAll(ITEM_SELECTOR, this.$el)
// Ensure `tabindex="-1"` is set on every item
items.forEach(item => {
item.tabIndex = -1
})
return items.filter(el => isVisible(el))
},
focusFirst() {
const items = this.getItems()
attemptFocus(items[0])
},
focusPrev(event) {
let items = this.getItems()
const index = items.indexOf(event.target)
if (index > -1) {
items = items.slice(0, index).reverse()
attemptFocus(items[0])
}
},
focusNext(event) {
let items = this.getItems()
const index = items.indexOf(event.target)
if (index > -1) {
items = items.slice(index + 1)
attemptFocus(items[0])
}
},
focusLast() {
const items = this.getItems().reverse()
attemptFocus(items[0])
},
onFocusin(event) {
const { $el } = this
if (event.target === $el && !contains($el, event.relatedTarget)) {
stopEvent(event)
this.focusFirst(event)
}
},
onKeydown(event) {
const { keyCode, shiftKey } = event
if (keyCode === CODE_UP || keyCode === CODE_LEFT) {
stopEvent(event)
shiftKey ? this.focusFirst(event) : this.focusPrev(event)
} else if (keyCode === CODE_DOWN || keyCode === CODE_RIGHT) {
stopEvent(event)
shiftKey ? this.focusLast(event) : this.focusNext(event)
}
}
},
render(h) {
const { keyNav } = this
return h(
'div',
{
staticClass: 'btn-toolbar',
class: { 'justify-content-between': this.justify },
attrs: {
role: 'toolbar',
tabindex: keyNav ? '0' : null
},
on: keyNav
? {
focusin: this.onFocusin,
keydown: this.onKeydown
}
: {}
},
[this.normalizeSlot()]
)
}
})
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