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Merge pull request #5 from No0ne003/select-component
Select component
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| import { cn } from "@/lib/utils"; | ||
| import { useEffect, useRef, useState } from "react"; | ||
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|
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| export type SelectOptions = { | ||
| label: string; | ||
| value: string | number; | ||
| }; | ||
| type MultipleSelectProps = { | ||
| multiple: true; | ||
| onChange: (value: SelectOptions[]) => void; | ||
| value: SelectOptions[]; | ||
| }; | ||
| type SingleSelectProps = { | ||
| multiple?: false; | ||
| onChange: (value: SelectOptions | undefined) => void; | ||
| value?: SelectOptions; | ||
| }; | ||
| type SelectProps = { | ||
| options: SelectOptions[]; | ||
| } & (SingleSelectProps | MultipleSelectProps); | ||
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|
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| const Select = ({ multiple, value, onChange, options }: SelectProps) => { | ||
| const [isOpen, setIsOpen] = useState(false); | ||
| const [highlightedIndex, setHighlightedIndex] = useState(0); | ||
| const containerRef = useRef<HTMLDivElement>(null); | ||
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|
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| function clearOptions() { | ||
| multiple ? onChange([]) : onChange(undefined); | ||
| } | ||
|
|
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| function selectOption(option: SelectOptions) { | ||
| if (multiple) { | ||
| if (value.includes(option)) { | ||
| onChange(value.filter((o) => o !== option)); | ||
| } else { | ||
| onChange([...value, option]); | ||
| } | ||
| } else { | ||
| if (option !== value) onChange(option); | ||
| } | ||
| } | ||
|
|
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| function isOptionSelected(option: SelectOptions) { | ||
| return multiple ? value.includes(option) : option === value; | ||
| } | ||
|
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| useEffect(() => { | ||
| if (isOpen) setHighlightedIndex(0); | ||
| }, [isOpen]); | ||
|
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| useEffect(() => { | ||
| const handler = (e: KeyboardEvent) => { | ||
| if (e.target != containerRef.current) return; | ||
| switch (e.code) { | ||
| case "Enter": | ||
| case "Space": | ||
| setIsOpen((prev) => !prev); | ||
| if (isOpen) selectOption(options[highlightedIndex]); | ||
| break; | ||
| case "ArrowUp": | ||
| case "ArrowDown": { | ||
| if (!isOpen) { | ||
| setIsOpen(true); | ||
| break; | ||
| } | ||
|
|
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| const newValue = highlightedIndex + (e.code === "ArrowDown" ? 1 : -1); | ||
| if (newValue >= 0 && newValue < options.length) { | ||
| setHighlightedIndex(newValue); | ||
| } | ||
| break; | ||
| } | ||
| case "Escape": | ||
| setIsOpen(false); | ||
| break; | ||
| } | ||
| }; | ||
| containerRef.current?.addEventListener("keydown", handler); | ||
|
|
||
| return () => { | ||
| containerRef.current?.removeEventListener("keydown", handler); | ||
| }; | ||
| }, [isOpen, highlightedIndex, options]); | ||
|
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| return ( | ||
| <div | ||
| ref={containerRef} | ||
| onBlur={() => setIsOpen(false)} | ||
| onClick={() => setIsOpen((prev) => !prev)} | ||
| tabIndex={0} | ||
| className="relative w-[20em] min-h-[1.5em] border-[0.05em] border-solid border-border flex items-center gap-[0.5em] p-[0.5em] rounded-lg outline-none focus:border-primary" | ||
| > | ||
| <span className="grow flex gap-2 flex-wrap"> | ||
| {multiple | ||
| ? value.map((v) => ( | ||
| <button | ||
| key={v.value} | ||
| onClick={(e) => { | ||
| e.stopPropagation(); | ||
| selectOption(v); | ||
| }} | ||
| className="flex items-center border-border border-[0.05em] rounded-sm px-2 gap-1 cursor-pointer bg-none outline-none hover:bg-secondary hover:border-primary/20 focus:bg-secondary focus:border-primary/20" | ||
| > | ||
| {v.label} | ||
| <span className="text-[#777] outline-none cursor-pointer text-[1.25em] focus:text-border hover:text-border"> | ||
| × | ||
| </span> | ||
| </button> | ||
| )) | ||
| : value?.label} | ||
| </span> | ||
| <button | ||
| className="text-[#777] outline-none cursor-pointer text-[1.25em] focus:text-border hover:text-border" | ||
| onClick={(e) => { | ||
| e.stopPropagation(); | ||
| clearOptions(); | ||
| }} | ||
| > | ||
| × | ||
| </button> | ||
| <div className="bg-border self-stretch w-[0.05em]"></div> | ||
| <div className="border-[0.30em] border-transparent border-t-border translate-[0_25%] mx-1"></div> | ||
| <ul | ||
| className={cn( | ||
| "absolute hidden max-h-[15em] overflow-y-auto border-[0.05em] border-border rounded-lg w-full left-0 top-[calc(100%+0.5rem)] bg-background z-[100]", | ||
| isOpen ? "block" : null, | ||
| )} | ||
| > | ||
| {options.map((option, index) => ( | ||
| <li | ||
| key={option.value} | ||
| onMouseEnter={() => setHighlightedIndex(index)} | ||
| className={cn( | ||
| "py-1 px-2 cursor-pointer", | ||
| isOptionSelected(option) | ||
| ? "bg-primary text-primary-foreground" | ||
| : null, | ||
| index === highlightedIndex | ||
| ? "bg-secondary text-foreground" | ||
| : null, | ||
| )} | ||
| onClick={(e) => { | ||
| e.stopPropagation(); | ||
| selectOption(option); | ||
| setIsOpen(false); | ||
| }} | ||
| > | ||
| {option.label} | ||
| </li> | ||
| ))} | ||
| </ul> | ||
| </div> | ||
| ); | ||
| }; | ||
|
|
||
| export default Select; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| import { useState } from "react"; | ||
| import Select, { SelectOptions } from "./components/Select"; | ||
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| const options = [ | ||
| { label: "First", value: 1 }, | ||
| { label: "Second", value: 2 }, | ||
| { label: "Third", value: 3 }, | ||
| { label: "Fourth ", value: 4 }, | ||
| { label: "Fifth", value: 5 }, | ||
| ]; | ||
|
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| const SelectComponent = () => { | ||
| const [value1, setValue1] = useState<SelectOptions[]>([options[0]]); | ||
| const [value2, setValue2] = useState<SelectOptions | undefined>(options[0]); | ||
| return ( | ||
| <div className="container flex flex-col justify-center items-center gap-10"> | ||
| <Select | ||
| multiple | ||
| options={options} | ||
| value={value1} | ||
| onChange={(o) => setValue1(o)} | ||
| /> | ||
| <Select options={options} value={value2} onChange={(o) => setValue2(o)} /> | ||
| </div> | ||
| ); | ||
| }; | ||
|
|
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| export default SelectComponent; |
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