130 lines
4.3 KiB
TypeScript
130 lines
4.3 KiB
TypeScript
import { useEffect, useRef, useState } from 'react'
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interface CollectionComboboxProps {
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/** Current value. Empty string means "Uncategorized". */
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value: string
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onChange: (value: string) => void
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/** Presets + known-in-use tags, already merged and deduped by the caller. */
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options: string[]
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placeholder?: string
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allowUncategorized?: boolean
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className?: string
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disabled?: boolean
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}
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/**
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* Dependency-free creatable combobox for collection tags. Lets you pick an
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* existing option (preset or already-in-use) or type a brand new one — the
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* "+ Create" row only appears when the (normalized) input doesn't already
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* match something. Actual normalization (trim/lowercase/length cap) happens
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* server-side via sanitizeCollectionName; this just lowercases for the
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* match-check and display so duplicates-by-case don't look like real options.
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*/
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export default function CollectionCombobox({
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value,
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onChange,
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options,
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placeholder = 'Uncategorized',
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allowUncategorized = true,
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className = '',
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disabled = false,
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}: CollectionComboboxProps) {
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const [query, setQuery] = useState(value)
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const [isOpen, setIsOpen] = useState(false)
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const containerRef = useRef<HTMLDivElement>(null)
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useEffect(() => {
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setQuery(value)
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}, [value])
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useEffect(() => {
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function handleClickOutside(e: MouseEvent) {
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if (containerRef.current && !containerRef.current.contains(e.target as Node)) {
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setIsOpen(false)
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setQuery(value)
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}
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}
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document.addEventListener('mousedown', handleClickOutside)
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return () => document.removeEventListener('mousedown', handleClickOutside)
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}, [value])
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const normalizedQuery = query.trim().toLowerCase()
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const filtered = normalizedQuery
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? options.filter((o) => o.toLowerCase().includes(normalizedQuery))
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: options
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const exactMatch = options.find((o) => o.toLowerCase() === normalizedQuery)
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const showCreateOption = normalizedQuery.length > 0 && !exactMatch
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const commit = (val: string) => {
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onChange(val)
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setQuery(val)
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setIsOpen(false)
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}
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return (
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<div ref={containerRef} className={`relative ${className}`}>
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<input
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type="text"
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value={query}
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disabled={disabled}
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onChange={(e) => {
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setQuery(e.target.value)
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setIsOpen(true)
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}}
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onFocus={() => setIsOpen(true)}
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onKeyDown={(e) => {
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if (e.key === 'Enter') {
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e.preventDefault()
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const trimmed = query.trim()
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if (!trimmed) {
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if (allowUncategorized) commit('')
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return
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}
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commit(exactMatch ?? trimmed.toLowerCase())
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} else if (e.key === 'Escape') {
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setIsOpen(false)
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setQuery(value)
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}
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}}
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placeholder={placeholder}
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className="w-full rounded border border-border-subtle bg-surface-primary px-2 py-1 text-sm text-text-primary disabled:opacity-50"
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/>
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{isOpen && !disabled && (
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<div className="absolute z-20 mt-1 w-full max-h-56 overflow-auto rounded border border-border-subtle bg-surface-primary shadow-lg">
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{allowUncategorized && (
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<button
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type="button"
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className="block w-full text-left px-2 py-1.5 text-sm text-text-secondary hover:bg-surface-secondary"
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onClick={() => commit('')}
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>
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Uncategorized
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</button>
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)}
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{filtered.map((opt) => (
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<button
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key={opt}
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type="button"
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className="block w-full text-left px-2 py-1.5 text-sm text-text-primary hover:bg-surface-secondary"
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onClick={() => commit(opt)}
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>
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{opt}
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</button>
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))}
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{showCreateOption && (
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<button
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type="button"
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className="block w-full text-left px-2 py-1.5 text-sm text-desert-green font-medium hover:bg-surface-secondary border-t border-border-subtle"
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onClick={() => commit(query.trim().toLowerCase())}
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>
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+ Create "{query.trim().toLowerCase()}"
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</button>
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)}
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{filtered.length === 0 && !showCreateOption && (
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<div className="px-2 py-1.5 text-sm text-text-muted">No matches</div>
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)}
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</div>
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)}
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</div>
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)
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}
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