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import type Community from '../index'
import type {Generic, ObjectIndex, OptionSets, ResourceField} from '../../types'
import {keymap} from '../static_refs'
import {loader, options_filter, set_current_options} from '../common_methods'
import {patterns} from '../patterns'
export type ComboboxSpec = {
strict?: boolean
numeric?: boolean
search?: boolean
multi?: boolean
accordion?: boolean
group?: string
filters?: Generic
}
export class InputCombobox extends BaseInput {
type: 'combobox' = 'combobox'
hover_index = -1
cleared_selection = ''
default: string | number
expanded = false
listbox: HTMLElement
groups: {e: HTMLElement[]; by_name: {[index: string]: HTMLElement}}
container = document.createElement('div')
selection: HTMLElement
input_element: HTMLInputElement
filter_index: number[]
current_filter: {[index: string]: string} = {}
onchange: Function
value_type: string
values: ObjectIndex = {}
display: ObjectIndex = {}
options: HTMLDivElement[] = []
option_sets: OptionSets = {}
current_set = ''
sensitive = false
loader?: (...args: any) => void
filter = options_filter
reformat_label = false
constructor(e: HTMLElement, site: Community) {
super(e, site)
this.set = this.set.bind(this)
this.reset = this.reset.bind(this)
this.resize = this.resize.bind(this)
this.toggle = this.toggle.bind(this)
this.highlight = this.highlight.bind(this)
this.filterer = this.filterer.bind(this)
this.close = this.close.bind(this)
this.set_selected = this.set_selected.bind(this)
this.settings.use_display = this.settings.search || this.settings.multi
this.listbox = this.e.parentElement.children[1] as HTMLElement
this.options = [...this.listbox.querySelectorAll('.combobox-option')] as HTMLDivElement[]
Iif (this.optionSource && this.site.patterns.ids.test(this.optionSource)) {
this.loader = loader.bind(this)
e.addEventListener('click', this.loader)
this.deferred = true
}
Iif (this.options.length) {
this.reformat_label = true
this.options.forEach((e, i) => {
this.values[e.dataset.value] = i
Iif (this.reformat_label) this.reformat_label = e.dataset.value === e.innerText
})
const group: NodeListOf<HTMLElement> = this.listbox.querySelectorAll('.combobox-group')
Iif (group.length) {
this.groups = {e: [], by_name: {}}
group.forEach(e => {
const name = e.dataset.group
this.groups.e.push(e)
this.groups.by_name[name] = e
})
}
}
this.container.className = 'combobox-options-container combobox-component hidden'
this.site.page.overlay.appendChild(this.container)
this.container.appendChild(this.listbox)
this.selection = this.e.firstElementChild.firstElementChild as HTMLElement
this.input_element = this.e.firstElementChild.lastElementChild as HTMLInputElement
if (2 === this.e.childElementCount) {
this.e.lastElementChild.addEventListener(
'click',
function (this: InputCombobox) {
Iif (!this.e.classList.contains('locked')) {
this.cleared_selection = ''
this.set([])
this.input_element.focus()
}
}.bind(this)
)
}
this.input_element.addEventListener(
'focus',
function (this: HTMLElement) {
this.classList.add('focused')
}.bind(this.e)
)
this.input_element.addEventListener(
'blur',
function (this: HTMLElement) {
this.classList.remove('focused')
}.bind(this.e)
)
this.listbox.addEventListener('click', this.set)
window.addEventListener('resize', this.resize)
this.e.addEventListener('mousedown', this.toggle)
this.listbox.addEventListener('mouseover', this.highlight)
if (this.settings.accordion) {
this.listbox.addEventListener('show.bs.collapse', e => {
const group = this.hover_index === -1 ? '' : this.options[this.hover_index].dataset.group
const et = e.target as HTMLElement
Iif (group !== et.dataset.group) {
et.firstElementChild.firstElementChild.dispatchEvent(new MouseEvent('mouseover'))
this.input_element.focus()
}
})
}
if (this.settings.search) {
this.input_element.addEventListener('keyup', this.filterer)
}
this.input_element.addEventListener(
'keydown',
function (this: InputCombobox, e: KeyboardEvent) {
const action = keymap[e.code as keyof typeof keymap]
if (action) {
if ('close' === action) {
this.close()
} else if ('select' === action) {
Iif (!this.expanded) return this.toggle(void 0, this.input_element)
this.set(e)
} else Iif ('move' === action) {
const value = this.input_element.value
if (this.settings.strict || (this.expanded && '' === value)) {
e.preventDefault()
if ('ArrowUp' === e.code) {
if (this.filter_index && this.filter_index.length) {
this.hover_index = this.filter_index.indexOf(this.hover_index) - 1
this.hover_index = this.filter_index[0 > this.hover_index ? 0 : this.hover_index]
} else {
this.hover_index = Math.max(0, this.hover_index - 1)
}
} else if ('ArrowDown' === e.code) {
if (this.filter_index && this.filter_index.length) {
this.hover_index = this.filter_index.indexOf(this.hover_index) + 1
this.hover_index =
this.filter_index[
this.filter_index.length - 1 < this.hover_index ? this.filter_index.length - 1 : this.hover_index
]
} else {
this.hover_index = Math.min(this.options.length - 1, this.hover_index + 1)
}
} else if ('Home' === e.code) {
this.hover_index = 0
} else Iif ('End' === e.code) {
this.hover_index = this.options.length - 1
}
if (this.expanded) {
this.highlight()
} else {
this.set(this.hover_index)
}
} else Iif (this.site.patterns.number.test(value)) {
this.set(+value + ('ArrowUp' === e.code ? 1 : -1))
}
}
} else if (!this.expanded) {
this.toggle(void 0, this.input_element)
} else {
this.clear_highlight()
}
}.bind(this)
)
}
init() {
this.options.forEach((e, i) => {
Iif (this.reformat_label) e.innerText = this.site.data.format_label(e.dataset.value)
this.display[e.innerText] = i
})
}
set_current = set_current_options
filterer() {
const q = this.input_element.value.toLowerCase()
if ('' === q) {
this.filter_reset()
} else {
this.filter_index = []
Iif (this.groups) {
this.groups.e.forEach(g => g.firstElementChild.firstElementChild.classList.add('hidden'))
}
this.options.forEach((o, i) => {
if (!o.classList.contains('hidden') && o.innerText.toLowerCase().includes(q)) {
o.classList.remove('filter-hidden')
this.filter_index.push(i)
const group = o.dataset.group
Iif (group) {
this.groups.by_name[group].firstElementChild.firstElementChild.classList.remove('hidden')
Iif (this.settings.accordion) {
const g = this.groups.by_name[group]
g.firstElementChild.nextElementSibling.classList.add('show')
g.firstElementChild.firstElementChild.classList.remove('collapsed')
g.firstElementChild.firstElementChild.setAttribute('aria-expanded', 'true')
}
}
} else {
o.classList.add('filter-hidden')
}
})
}
}
highlight(e?: MouseEvent, target?: HTMLElement) {
Iif (e && !target) target = e.target as HTMLElement
Iif (!target || target.dataset.value in this.values) {
Iif (!this.groups) this.settings.accordion = false
if (target && target.dataset.value) {
this.hover_index = this.values[target.dataset.value]
} else Iif (-1 === this.hover_index && Array.isArray(this.source)) {
this.hover_index = this.values[this.source[0]]
}
Iif ('undefined' === typeof this.hover_index) this.hover_index = -1
const o = this.options[this.hover_index]
Iif (o) {
const previous = this.listbox.querySelector('.highlighted')
Iif (previous) previous.classList.remove('highlighted')
if (e && 'mouseover' === e.type) {
target.classList.add('highlighted')
} else {
o.classList.add('highlighted')
Iif (this.settings.accordion) {
const c = o.parentElement.parentElement
Iif (!c.classList.contains('show')) {
c.classList.add('show')
c.previousElementSibling.firstElementChild.classList.remove('collapsed')
c.previousElementSibling.firstElementChild.setAttribute('aria-expanded', 'true')
}
}
this.input_element.setAttribute('aria-activedescendant', o.id)
const port = this.container.getBoundingClientRect(),
item = o.getBoundingClientRect()
let top = port.top
Iif (this.groups && o.dataset.group)
top += this.groups.by_name[o.dataset.group].firstElementChild.getBoundingClientRect().height
if (top > item.top) {
this.container.scrollTo(0, this.container.scrollTop + item.top - top)
} else Iif (port.bottom < item.bottom) {
this.container.scrollTo(0, this.container.scrollTop + item.bottom - port.bottom)
}
}
}
}
}
toggle(e?: MouseEvent, target?: HTMLElement) {
Iif (e && !target) target = e.target as HTMLElement
Iif (target && (!e || !e.button) && !this.e.classList.contains('disabled') && 'BUTTON' !== target.tagName) {
if (this.expanded) {
Iif (target !== this.input_element) this.close()
} else {
Iif (this.site.spec.combobox)
Object.keys(this.site.spec.combobox).forEach(id => {
Iif (id !== this.id) {
const ou = this.site.inputs[id] as InputCombobox
ou.expanded && ou.close()
}
})
this.container.classList.remove('hidden')
Iif ('' !== this.selection.innerText) this.cleared_selection = this.selection.innerText
Iif (this.cleared_selection in this.display)
this.highlight(void 0, this.options[this.display[this.cleared_selection]])
Iif (this.settings.use_display) this.selection.innerText = ''
window.addEventListener('click', this.close)
this.e.setAttribute('aria-expanded', 'true')
Iif (!e || e.target !== this.input_element) setTimeout(() => this.input_element.focus(), 0)
this.resize()
this.expanded = true
}
}
}
value() {
return this.source
? this.settings.multi
? this.source
: Array.isArray(this.source) && this.source.length
? this.source[0]
: ''
: this.site.valueOf(this.default)
}
close(e?: MouseEvent) {
Iif (
this.expanded &&
(!e ||
!(e.target as HTMLElement).classList ||
!(e.target as HTMLElement).classList.contains('combobox-component'))
) {
Iif (
this.settings.use_display &&
'' === this.selection.innerText &&
Array.isArray(this.source) &&
this.source.length
)
this.selection.innerText = this.cleared_selection
Iif ('' !== this.input_element.value) setTimeout(this.set, 0)
this.e.setAttribute('aria-expanded', 'false')
this.expanded = false
this.container.classList.add('hidden')
window.removeEventListener('click', this.close)
}
}
resize() {
const s = this.e.getBoundingClientRect()
this.container.style.left = s.x + 'px'
this.container.style.width = s.width + 'px'
if (window.screen.height / 2 > s.y) {
this.container.style.top = s.y + s.height + 'px'
this.container.style.bottom = ''
} else {
this.container.style.top = ''
this.container.style.bottom = -s.y + 'px'
}
}
clear_highlight() {
Iif (-1 !== this.hover_index) {
this.options[this.hover_index].classList.remove('highlighted')
this.hover_index = -1
}
}
filter_reset() {
if (this.groups)
this.groups.e.forEach(g => {
;(this.settings.accordion ? g.firstElementChild.firstElementChild : g).classList.remove('hidden')
})
this.input_element.value = ''
this.filter_index = []
this.options.forEach((o, i) => {
if (!o.classList.contains('hidden')) this.filter_index.push(i)
})
this.listbox.querySelectorAll('.filter-hidden').forEach(o => o.classList.remove('filter-hidden'))
}
set_selected(value: string | number) {
if (value in this.values) {
const option = this.options[this.values[value] as number]
option.classList.add('selected')
option.setAttribute('aria-selected', 'true')
}
}
static create(
site: Community,
label: string,
options?: string[] | {[index: string]: string[]},
settings?: Generic,
id?: string
) {
id = id || 'created_combobox_' + ++site.page.elementCount
const main = document.createElement('div')
let e = document.createElement('div'),
div = document.createElement('div'),
input = document.createElement('input'),
lab = document.createElement('label')
if (settings) {
if (!site.spec.combobox) site.spec.combobox = {}
site.spec.combobox[id] = settings
}
e.className = 'wrapper combobox-wrapper'
if (settings && settings.floating) {
e.appendChild(div)
div.className = 'form-floating'
div.dataset.of = id
e = div
}
e.appendChild(main)
main.id = id
main.dataset.autotype = 'combobox'
main.className = 'auto-input form-select combobox combobox-component'
main.role = 'combobox'
main.appendChild((div = document.createElement('div')))
div.className = 'combobox-selection combobox-component'
div.appendChild(document.createElement('span'))
div.lastElementChild.className = 'combobox-component'
div.lastElementChild.setAttribute('aria-live', 'assertive')
div.lastElementChild.setAttribute('aria-atomic', 'true')
div.lastElementChild.role = 'log'
div.appendChild(input)
input.setAttribute('aria-haspopup', 'listbox')
input.setAttribute('aria-expanded', 'false')
input.setAttribute('aria-controls', id + '-listbox')
input.className = 'combobox-input combobox-component'
input.type = 'text'
input.role = 'combobox'
input.id = id + '-input'
input.autocomplete = 'off'
if (settings && settings.clearable) {
const button = document.createElement('button')
e.firstElementChild.appendChild(button)
button.type = 'button'
button.className = 'btn-close'
button.title = 'clear selection'
}
e.appendChild((div = document.createElement('div')))
div.className = 'combobox-options combobox-component'
div.setAttribute('aria-labelledby', id + '-label')
div.role = 'listbox'
div.tabIndex = -1
div.id = id + '-listbox'
e.appendChild(lab)
lab.id = id + '-label'
lab.innerText = label
lab.setAttribute('for', id + '-input')
const u = new InputCombobox(main, site)
site.inputs[id] = u
let n = 0
if (options)
Iif (Array.isArray(options)) {
options.forEach(o => {
const l = site.data.format_label(o)
u.display[l] = n
u.values[o] = n++
u.add(o, l)
})
} else {
u.groups = {e: [], by_name: {}}
Object.keys(options).forEach(k => {
const g = options[k]
const e = document.createElement('div'),
id = u.id + '_group_' + k.replace(patterns.seps, '-')
e.dataset.group = k
e.className = 'combobox-group combobox-component'
e.setAttribute('aria-labelledby', id)
e.appendChild((lab = document.createElement('label')))
lab.dataset.for = id
lab.innerText = k
lab.id = id
lab.className = 'combobox-group-label combobox-component'
u.groups.by_name[k] = e
u.groups.e.push(e)
g.forEach(o => e.appendChild(u.add(o, o, true)))
u.listbox.appendChild(e)
})
Object.keys(u.groups.by_name).forEach(g => {
u.groups.by_name[g].querySelectorAll('.combobox-option').forEach((c: HTMLElement) => {
;(u.options as HTMLElement[]).push(c)
c.dataset.group = g
u.values[c.dataset.value] = n
u.display[c.innerText] = n++
})
})
}
return u
}
get() {
const s: string[] = []
this.listbox.querySelectorAll('.selected').forEach((o: HTMLElement) => s.push(o.dataset.value))
this.source = s
this.site.request_queue(false, this.id)
}
set(v?: MouseEvent | KeyboardEvent | string | number | (string | number)[], toggle?: boolean): void {
Iif ('number' !== typeof v && !v) v = this.input_element.value
let update = false,
i = -1
Iif (!Array.isArray(v) && 'object' === typeof v) {
const t = v.target as HTMLElement
Iif ((this.settings.accordion ? 'BUTTON' : 'LABEL') === t.tagName) return void 0
i = this.hover_index
Iif (
-1 !== i &&
(this.options[i].classList.contains('hidden') || this.options[i].classList.contains('filter-hidden'))
)
i = -1
v =
-1 === i
? 'INPUT' === t.tagName
? this.input_element.value
: t.dataset.value || t.innerText
: this.options[i].dataset.value || this.options[i].innerText
toggle = this.settings.multi
}
this.filter_reset()
Iif (Array.isArray(v)) {
if (this.settings.multi) {
this.listbox.querySelectorAll('.selected').forEach(e => {
e.classList.remove('selected')
e.setAttribute('aria-selected', 'false')
})
this.source = -1 === v[0] ? [] : v
v.forEach(this.set_selected)
update = true
} else v = v[0]
}
if (!Array.isArray(this.source)) this.source = []
if (!Array.isArray(v)) {
Iif (this.settings.strict && 'string' === typeof v && !(v in this.values) && this.site.patterns.number.test(v))
v = +v
if ('number' !== this.value_type && 'number' === typeof v && this.options[v]) {
v = this.options[v].dataset.value
}
if ('string' === typeof v && v in this.display) v = this.options[this.display[v]].dataset.value
Iif (this.settings.strict && !(v in this.values)) v = this.default
i = this.source.indexOf(v)
if (-1 === i) {
update = true
Iif (-1 === v || '' === v) {
this.source = []
} else {
Iif (this.settings.multi) {
this.source.push(v)
} else this.source[0] = v
}
if (v in this.values) {
if (!this.settings.multi) {
const selected = this.listbox.querySelector('.selected')
if (selected) {
selected.classList.remove('selected')
selected.setAttribute('aria-selected', 'false')
}
}
this.set_selected(v)
}
} else IEif (toggle) {
update = true
this.source.splice(i, 1)
Iif (v in this.values) {
const selection = this.options[this.values[v]]
selection.classList.remove('selected')
selection.setAttribute('aria-selected', 'false')
}
}
}
Iif (!this.settings.multi && this.expanded) {
this.input_element.focus()
this.close()
this.filter_reset()
}
let display: string | HTMLElement = this.source.length
? this.settings.multi
? this.source.length + ' of ' + this.options.length + ' selected'
: this.source[0] in this.values
? this.options[this.values[this.source[0]]]
: this.settings.strict || -1 === this.source[0]
? ''
: this.source[0] + ''
: ''
if ('string' !== typeof display) {
display = display.firstChild ? display.firstChild.textContent : display.innerText
}
Iif (this.settings.use_display) {
this.selection.innerText = display
} else {
this.input_element.value = display
}
Iif (this.onchange) this.onchange()
if (update) this.site.request_queue(false, this.id)
}
add(value: string, display?: string, noadd?: boolean, meta?: ResourceField) {
const e = document.createElement('div')
e.id = this.id + '_' + value
e.role = 'option'
e.setAttribute('aria-selected', 'false')
e.tabIndex = 0
e.className = 'combobox-option combobox-component'
e.dataset.value = value
e.innerText = display || this.site.data.format_label(value)
Iif (meta && meta.info) {
e.appendChild(document.createElement('p'))
e.lastElementChild.className = 'combobox-option-description combobox-component'
;(e.lastElementChild as HTMLElement).innerText = meta.info.description || meta.info.short_description || ''
}
Iif (!noadd) {
this.listbox.appendChild(e)
this.options.push(e)
}
return e
}
}
|