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import React, { useState, useRef, useEffect, useLayoutEffect } from "react"; |
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import { createPortal } from "react-dom"; |
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import { ChevronDown, X, Search } from "lucide-react"; |
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import { __ } from "../../lib/i18n"; |
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import { Input } from "./input"; |
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|
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export interface SearchableSelectOption { |
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value: string; |
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label: string; |
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icon?: string; |
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} |
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|
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export interface SearchableSelectProps { |
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value: string; |
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onChange: (value: string) => void; |
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options: SearchableSelectOption[]; |
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placeholder?: string; |
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searchPlaceholder?: string; |
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className?: string; |
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error?: boolean; |
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required?: boolean; |
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disabled?: boolean; |
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showValueId?: boolean; // Show "ID: value" next to label |
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} |
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|
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export const SearchableSelect: React.FC<SearchableSelectProps> = ({ |
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value, |
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onChange, |
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options, |
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placeholder = __("Select an option...", "yatra"), |
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searchPlaceholder = __("Search...", "yatra"), |
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className = "", |
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error = false, |
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disabled = false, |
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showValueId = true, |
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}) => { |
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const [isOpen, setIsOpen] = useState(false); |
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const [searchTerm, setSearchTerm] = useState(""); |
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const containerRef = useRef<HTMLDivElement>(null); |
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const searchInputRef = useRef<HTMLInputElement>(null); |
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// Dropdown is portaled to document.body so it escapes parent stacking |
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// contexts (each itinerary entry row is `position: relative` with its |
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// own z-index — without portaling, later sibling rows would render |
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// their content ABOVE this dropdown panel regardless of z-index). |
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const [menuRect, setMenuRect] = useState<{ |
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top: number; |
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left: number; |
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width: number; |
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} | null>(null); |
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|
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// Filter options based on search term (search by both label and value) |
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const filteredOptions = options.filter( |
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(option) => |
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option.label.toLowerCase().includes(searchTerm.toLowerCase()) || |
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option.value.toLowerCase().includes(searchTerm.toLowerCase()), |
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); |
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|
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// Get selected option |
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const selectedOption = options.find((opt) => opt.value === value); |
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|
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// Close dropdown when clicking outside. Because the menu is portaled |
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// to document.body, we check membership against BOTH the trigger |
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// container and the portal node — a click on the menu itself must |
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// not count as "outside". |
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useEffect(() => { |
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const handleClickOutside = (event: MouseEvent) => { |
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const target = event.target as Node; |
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if (containerRef.current && containerRef.current.contains(target)) { |
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return; |
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} |
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const portalRoot = document.getElementById( |
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"yatra-searchable-select-portal", |
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); |
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if (portalRoot && portalRoot.contains(target)) { |
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return; |
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} |
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setIsOpen(false); |
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setSearchTerm(""); |
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}; |
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|
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if (isOpen) { |
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document.addEventListener("mousedown", handleClickOutside); |
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// Focus search input when dropdown opens |
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setTimeout(() => { |
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searchInputRef.current?.focus(); |
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}, 100); |
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} |
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|
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return () => { |
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document.removeEventListener("mousedown", handleClickOutside); |
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}; |
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}, [isOpen]); |
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|
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// Measure trigger so the portaled menu can position under it. We |
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// re-measure on open, on scroll, and on resize so the menu tracks |
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// the trigger when the page scrolls under it. |
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useLayoutEffect(() => { |
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if (!isOpen) { |
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setMenuRect(null); |
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return; |
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} |
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const measure = () => { |
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const el = containerRef.current; |
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if (!el) return; |
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const rect = el.getBoundingClientRect(); |
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setMenuRect({ |
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top: rect.bottom + 4, |
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left: rect.left, |
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width: rect.width, |
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}); |
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}; |
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measure(); |
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window.addEventListener("scroll", measure, true); |
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window.addEventListener("resize", measure); |
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return () => { |
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window.removeEventListener("scroll", measure, true); |
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window.removeEventListener("resize", measure); |
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}; |
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}, [isOpen]); |
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|
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const handleSelect = (optionValue: string) => { |
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onChange(optionValue); |
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setIsOpen(false); |
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setSearchTerm(""); |
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}; |
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|
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const handleClear = (e: React.MouseEvent) => { |
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e.stopPropagation(); |
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onChange(""); |
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setSearchTerm(""); |
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}; |
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|
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return ( |
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<div |
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ref={containerRef} |
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className={`relative ${className}`} |
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style={{ zIndex: isOpen ? 9999 : "auto" }} |
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> |
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<div |
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className={`flex h-11 w-full rounded-md border-2 ${ |
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error ? "border-red-500" : "border-gray-300 dark:border-gray-600" |
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} bg-white dark:bg-gray-800 px-4 py-2.5 text-base ring-offset-white focus-within:outline-none focus-within:ring-2 focus-within:ring-blue-500 focus-within:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 dark:ring-offset-gray-900 dark:focus-within:ring-blue-400 transition-colors`} |
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> |
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<div |
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onClick={() => !disabled && setIsOpen(!isOpen)} |
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className={`flex-1 flex items-center justify-between text-left ${disabled ? "cursor-not-allowed opacity-50" : "cursor-pointer"}`} |
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> |
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<span |
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className={ |
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selectedOption |
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? "text-gray-900 dark:text-white" |
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: "text-gray-500 dark:text-gray-400" |
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} |
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> |
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{selectedOption ? ( |
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<div className="flex items-center justify-between w-full"> |
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<span className="flex items-center gap-2 min-w-0"> |
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{selectedOption.icon && ( |
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<img |
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src={selectedOption.icon} |
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alt="" |
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width={22} |
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height={16} |
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className="flex-shrink-0 rounded-[2px] object-cover ring-1 ring-black/10" |
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/> |
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)} |
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<span className="truncate">{selectedOption.label}</span> |
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</span> |
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{showValueId && |
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selectedOption.value && |
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selectedOption.value !== "" && ( |
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<span className="text-xs text-gray-500 dark:text-gray-400 ml-2 font-medium"> |
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ID: {selectedOption.value} |
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</span> |
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)} |
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</div> |
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) : ( |
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placeholder |
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)} |
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</span> |
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<div className="flex items-center gap-1"> |
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{value && !disabled && ( |
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<button |
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type="button" |
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onClick={handleClear} |
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className="p-0.5 hover:bg-gray-100 dark:hover:bg-gray-700 rounded" |
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aria-label={__("Clear selection", "yatra")} |
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> |
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<X className="w-4 h-4 text-gray-400" /> |
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</button> |
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)} |
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<ChevronDown |
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className={`w-4 h-4 text-gray-400 transition-transform ${isOpen ? "rotate-180" : ""}`} |
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/> |
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</div> |
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</div> |
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</div> |
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|
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{isOpen && |
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menuRect && |
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createPortal( |
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<div |
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id="yatra-searchable-select-portal" |
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style={{ |
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position: "fixed", |
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top: menuRect.top, |
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left: menuRect.left, |
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width: menuRect.width, |
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zIndex: 999999, |
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}} |
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className="bg-white dark:bg-gray-800 border-2 border-gray-300 dark:border-gray-600 rounded-md shadow-lg max-h-60 overflow-visible" |
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> |
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{/* Search Input */} |
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<div className="p-2 border-b border-gray-200 dark:border-gray-700"> |
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<div className="relative"> |
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<Search className="absolute left-2.5 top-1/2 transform -translate-y-1/2 w-4 h-4 text-gray-400" /> |
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<Input |
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ref={searchInputRef} |
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type="text" |
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placeholder={searchPlaceholder} |
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value={searchTerm} |
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onChange={(e) => setSearchTerm(e.target.value)} |
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className="pl-8 h-8" |
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onClick={(e) => e.stopPropagation()} |
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/> |
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</div> |
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</div> |
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|
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{/* Options List */} |
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<div className="max-h-48 overflow-y-auto overflow-x-visible"> |
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{filteredOptions.length === 0 ? ( |
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<div className="px-3 py-2 text-sm text-gray-500 dark:text-gray-400 text-center"> |
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{__("No options found", "yatra")} |
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</div> |
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) : ( |
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filteredOptions.map((option) => ( |
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<button |
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key={option.value} |
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type="button" |
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onClick={() => handleSelect(option.value)} |
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className={`w-full px-3 py-2 text-left text-sm hover:bg-gray-100 dark:hover:bg-gray-700 transition-colors ${ |
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value === option.value |
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? "bg-blue-50 dark:bg-blue-900/20 text-blue-700 dark:text-blue-400" |
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: "text-gray-900 dark:text-white" |
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}`} |
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> |
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<div className="flex items-center justify-between"> |
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<span className="flex items-center gap-2 min-w-0"> |
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{option.icon && ( |
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<img |
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src={option.icon} |
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alt="" |
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loading="lazy" |
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width={22} |
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height={16} |
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className="flex-shrink-0 rounded-[2px] object-cover ring-1 ring-black/10" |
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/> |
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)} |
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<span className="truncate">{option.label}</span> |
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</span> |
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{showValueId && option.value && option.value !== "" && ( |
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<span className="text-xs text-gray-500 dark:text-gray-400 ml-2 font-medium"> |
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ID: {option.value} |
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</span> |
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)} |
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</div> |
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</button> |
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)) |
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)} |
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</div> |
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</div>, |
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document.body, |
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)} |
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</div> |
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); |
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}; |
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|