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<div ref="rootRef" class="rich-reference-select" @keydown.esc="closeDropdown">
<div v-if="multiple && selectedOptions.length" class="selected-chips mb-2">
<button
v-for="option in selectedOptions"
:key="option.value"
type="button"
class="chip"
:disabled="disabled"
@click="removeOption(option.value)"
>
<slot name="selected" :option="option">
<span class="chip-label">{{ option.label }}</span>
</slot>
<span class="chip-remove" aria-hidden="true">x</span>
</button>
</div>
<div class="search-wrapper" :class="{ open: isOpen }">
<input
:id="inputId"
ref="inputRef"
v-model="query"
type="search"
class="form-control form-control-sm search-input"
:placeholder="resolvedSearchPlaceholder"
:disabled="disabled"
@focus="openDropdown"
/>
<button
v-if="!multiple && !required && normalizedSingleValue"
type="button"
class="clear-btn"
:disabled="disabled"
@click="clearSingle"
>
x
</button>
</div>
<div v-if="isOpen" class="dropdown-panel" role="listbox">
<div v-if="loading" class="dropdown-message">{{ resolvedLoadingLabel }}</div>
<template v-else>
<button
v-for="option in visibleOptions"
:key="option.value"
type="button"
class="dropdown-option"
:class="{ selected: isSelected(option.value), disabled: !!option.disabled }"
:disabled="!!option.disabled"
@click="toggleOption(option)"
>
<slot name="option" :option="option" :selected="isSelected(option.value)">
<div class="option-default-label">{{ option.label }}</div>
<div v-if="option.description" class="option-default-description">
{{ option.description }}
</div>
</slot>
</button>
<div v-if="!visibleOptions.length" class="dropdown-message">
{{ resolvedNoResultsLabel }}
</div>
</template>
</div>
<div
v-if="minValues && normalizedMultiValue.length < minValues"
class="text-warning small mt-1"
>
{{ t('field.referenceMinValuesHint').replace('{min}', String(minValues)) }}
</div>
</div>
</template>
<script setup lang="ts">
import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
import { useUILanguage } from '@/composables/useUILanguage'
import type { ReferenceOption } from '@/composables/useFlowMemberReference'
const props = withDefaults(
defineProps<{
modelValue: string | string[] | null | undefined
multiple?: boolean
required?: boolean
disabled?: boolean
inputId?: string
minValues?: number
maxValues?: number
searchPlaceholder?: string
loadingLabel?: string
noResultsLabel?: string
loadOptions: (query: string) => Promise<ReferenceOption[]>
}>(),
{
multiple: false,
required: false,
disabled: false,
inputId: '',
minValues: undefined,
maxValues: undefined,
searchPlaceholder: '',
loadingLabel: '',
noResultsLabel: ''
}
)
const emit = defineEmits<{
'update:modelValue': [value: string | string[] | null]
blur: []
}>()
const { t } = useUILanguage()
const rootRef = ref<HTMLElement | null>(null)
const isOpen = ref(false)
const query = ref('')
const loading = ref(false)
const options = ref<ReferenceOption[]>([])
let searchTimer: ReturnType<typeof setTimeout> | null = null
const normalizedMultiValue = computed(() => {
if (!props.multiple) return [] as string[]
return Array.isArray(props.modelValue) ? props.modelValue.map((v) => String(v)) : []
})
const normalizedSingleValue = computed(() => {
if (props.multiple) return null
if (props.modelValue === undefined || props.modelValue === null || props.modelValue === '') {
return null
}
return String(props.modelValue)
})
const selectedOptions = computed(() => {
const selectedSet = new Set(
props.multiple
? normalizedMultiValue.value
: normalizedSingleValue.value
? [normalizedSingleValue.value]
: []
)
return options.value.filter((option) => selectedSet.has(option.value))
})
const visibleOptions = computed(() => {
if (!props.multiple) {
return options.value
}
const selectedSet = new Set(normalizedMultiValue.value)
return options.value.filter((option) => !selectedSet.has(option.value))
})
const resolvedSearchPlaceholder = computed(() => props.searchPlaceholder || t('common.search'))
const resolvedLoadingLabel = computed(() => props.loadingLabel || t('common.loading'))
const resolvedNoResultsLabel = computed(() => props.noResultsLabel || t('common.noResults'))
function isSelected(value: string): boolean {
return props.multiple
? normalizedMultiValue.value.includes(value)
: normalizedSingleValue.value === value
}
function syncSingleQueryFromModel() {
if (props.multiple) return
if (!normalizedSingleValue.value) return
const selected = options.value.find((option) => option.value === normalizedSingleValue.value)
if (selected) {
query.value = selected.label
}
}
function openDropdown() {
if (props.disabled) return
isOpen.value = true
void refreshOptions()
}
function closeDropdown() {
isOpen.value = false
emit('blur')
}
function clearSingle() {
emit('update:modelValue', null)
query.value = ''
void refreshOptions()
}
function removeOption(value: string) {
if (!props.multiple) return
emit(
'update:modelValue',
normalizedMultiValue.value.filter((entry) => entry !== value)
)
}
function toggleOption(option: ReferenceOption) {
if (option.disabled) return
if (props.multiple) {
const current = normalizedMultiValue.value
if (current.includes(option.value)) {
emit(
'update:modelValue',
current.filter((entry) => entry !== option.value)
)
return
}
if (props.maxValues !== undefined && current.length >= props.maxValues) {
return
}
emit('update:modelValue', [...current, option.value])
return
}
emit('update:modelValue', option.value)
query.value = option.label
closeDropdown()
}
async function refreshOptions() {
loading.value = true
try {
options.value = await props.loadOptions(query.value.trim())
// Keep the input label in sync for edit mode once async options are available.
if (!query.value || query.value === normalizedSingleValue.value) {
syncSingleQueryFromModel()
}
} catch {
options.value = []
} finally {
loading.value = false
}
}
function onClickOutside(event: MouseEvent) {
Iif (!rootRef.value) return
const target = event.target as Node | null
if (target && !rootRef.value.contains(target)) {
closeDropdown()
}
}
watch(
() => query.value,
() => {
if (searchTimer) {
clearTimeout(searchTimer)
}
searchTimer = setTimeout(() => {
void refreshOptions()
}, 250)
}
)
watch(
() => [props.multiple, props.modelValue],
() => {
syncSingleQueryFromModel()
},
{ immediate: true }
)
onMounted(() => {
document.addEventListener('mousedown', onClickOutside)
const hasInitialSelection = !!normalizedSingleValue.value || normalizedMultiValue.value.length > 0
if (hasInitialSelection) {
void refreshOptions()
}
})
onBeforeUnmount(() => {
document.removeEventListener('mousedown', onClickOutside)
if (searchTimer) {
clearTimeout(searchTimer)
}
})
</script>
<style scoped>
.rich-reference-select {
position: relative;
}
.selected-chips {
display: flex;
flex-wrap: wrap;
gap: 0.35rem;
}
.chip {
border: 1px solid #d0d9e2;
background: #f4f7fa;
border-radius: 999px;
padding: 0.2rem 0.5rem;
display: inline-flex;
align-items: center;
gap: 0.35rem;
max-width: 100%;
}
.chip-label {
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.chip-remove {
opacity: 0.7;
font-size: 0.8rem;
}
.search-wrapper {
position: relative;
}
.search-input {
padding-right: 1.8rem;
}
.clear-btn {
position: absolute;
top: 50%;
right: 0.4rem;
transform: translateY(-50%);
border: 0;
background: transparent;
color: #6b7280;
}
.dropdown-panel {
position: absolute;
z-index: 30;
left: 0;
right: 0;
margin-top: 0.25rem;
border: 1px solid #d6dee6;
border-radius: 0.5rem;
background: #fff;
max-height: 260px;
overflow-y: auto;
box-shadow: 0 10px 24px rgba(12, 19, 31, 0.12);
}
.dropdown-option {
width: 100%;
text-align: left;
border: 0;
background: transparent;
padding: 0.5rem 0.6rem;
border-bottom: 1px solid #f0f3f6;
}
.dropdown-option:hover,
.dropdown-option.selected {
background: #f8fbff;
}
.dropdown-option.disabled {
opacity: 0.55;
}
.option-default-label {
font-weight: 600;
}
.option-default-description {
font-size: 0.8rem;
color: #6b7280;
}
.dropdown-message {
padding: 0.6rem;
color: #6b7280;
font-size: 0.85rem;
}
</style>
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