113 lines
2.9 KiB
TypeScript
113 lines
2.9 KiB
TypeScript
import Link from "next/link";
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import React, { MouseEventHandler, useEffect, useState } from "react";
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import ClickAwayHandler from "./ClickAwayHandler";
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type MenuItem =
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| {
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name: string;
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onClick: MouseEventHandler;
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href?: string;
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}
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| {
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name: string;
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onClick?: MouseEventHandler;
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href: string;
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}
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| undefined;
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type Props = {
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onClickOutside: Function;
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className?: string;
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items: MenuItem[];
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points?: { x: number; y: number };
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style?: React.CSSProperties;
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width?: number; // in rem
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};
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export default function Dropdown({
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points,
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onClickOutside,
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className,
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items,
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width,
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}: Props) {
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const [pos, setPos] = useState<{ x: number; y: number }>();
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const [dropdownHeight, setDropdownHeight] = useState<number>();
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const [dropdownWidth, setDropdownWidth] = useState<number>();
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function convertRemToPixels(rem: number) {
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return (
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rem * parseFloat(getComputedStyle(document.documentElement).fontSize)
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);
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}
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useEffect(() => {
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if (points) {
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let finalX = points.x;
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let finalY = points.y;
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// Check for x-axis overflow (left side)
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if (dropdownWidth && points.x + dropdownWidth > window.innerWidth) {
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finalX = points.x - dropdownWidth;
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}
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// Check for y-axis overflow (bottom side)
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if (dropdownHeight && points.y + dropdownHeight > window.innerHeight) {
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finalY =
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window.innerHeight -
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(dropdownHeight + (window.innerHeight - points.y));
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}
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setPos({ x: finalX, y: finalY });
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}
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}, [points, width, dropdownHeight]);
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return (
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(!points || pos) && (
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<ClickAwayHandler
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onMount={(e) => {
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setDropdownHeight(e.height);
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setDropdownWidth(e.width);
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}}
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style={
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points
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? {
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position: "fixed",
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top: `${pos?.y}px`,
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left: `${pos?.x}px`,
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}
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: undefined
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}
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onClickOutside={onClickOutside}
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className={`${
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className || ""
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} py-1 shadow-md border border-sky-100 dark:border-neutral-700 bg-gray-50 dark:bg-neutral-800 rounded-md flex flex-col z-20`}
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>
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{items.map((e, i) => {
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const inner = e && (
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<div className="cursor-pointer rounded-md">
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<div className="flex items-center gap-2 py-1 px-2 hover:bg-slate-200 dark:hover:bg-neutral-700 duration-100">
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<p className="text-black dark:text-white select-none">
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{e.name}
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</p>
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</div>
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</div>
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);
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return e && e.href ? (
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<Link key={i} href={e.href}>
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{inner}
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</Link>
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) : (
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e && (
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<div key={i} onClick={e.onClick}>
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{inner}
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</div>
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)
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);
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})}
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</ClickAwayHandler>
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)
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);
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}
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