I'm seeking to implement a resizable modal that only adjusts its height. I've written some code, but when I attempt to extend it downwards quickly, it exceeds the element boundaries without any effect. I've come across codes that work properly, such as this one, so I'm unsure what I might be overlooking.
Additionally, I have a question: Is this the correct approach to creating resizable components in React? I attempted to use states, but encountered issues with unexpected growth.
import React, { FC, useCallback, useMemo, useRef } from "react";
import { PrimitivesT } from "../Table/Table";
interface ModalProps {
children: JSX.Element | PrimitivesT;
display: boolean;
width: string;
height: string;
x?: number;
y?: number;
boxShadow?: boolean;
}
const Modal: FC<ModalProps> = ({
children,
display = false,
// initial height
height = "0",
width = "0",
x,
y,
boxShadow = true,
}) => {
const ref = useRef<HTMLDivElement>(null);
const styles = useMemo<React.CSSProperties>(
() => ({
display: display ? "block" : "none",
height: height,
width,
minHeight: "15px",
position: "absolute",
left: x,
top: y,
boxShadow: boxShadow ? "1px 1px 10px 5px var(--gray)" : undefined,
borderRadius: "5px",
backgroundColor: "white",
zIndex: 900,
}),
[display, height, width, x, y, boxShadow]
);
const bottomStyle = useMemo<React.CSSProperties>(
() => ({
cursor: "row-resize",
width: "100%",
position: "absolute",
bottom: "0",
left: "0",
height: "5px",
}),
[]
);
const onMouseDown =
useCallback((): React.MouseEventHandler<HTMLDivElement> => {
let y = 0;
let h = 60;
const onMouseMove = (e: MouseEvent) => {
const YDir = e.clientY - y;
if (ref.current) ref.current.style.height = `${h + YDir}px`;
};
const onMouseUp = () => {
try {
ref.current?.removeEventListener("mousemove", onMouseMove);
ref.current?.removeEventListener("mouseup", onMouseUp);
} catch (err) {
console.error(err);
}
};
return e => {
e.stopPropagation();
const bounding = ref.current?.getBoundingClientRect();
if (bounding?.height) h = bounding?.height;
y = e.clientY;
ref.current?.addEventListener("mousemove", onMouseMove);
ref.current?.addEventListener("mouseup", onMouseUp);
};
}, []);
return (
<div
ref={ref}
style={styles}
data-testid="Modal"
onMouseDown={e => e.stopPropagation()}>
{children}
<div style={bottomStyle} onMouseDown={onMouseDown()}></div>
</div>
);
};
export default Modal;