image-converter-client/app/routes/DragableBox.tsx

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2024-11-02 15:47:17 +00:00
import { useSearchParams } from '@remix-run/react';
import { useState, useEffect, MouseEvent, useRef } from 'react';
interface DraggableBoxProps {
tag: string;
initialX: number;
initialY: number;
className?: string;
children?: React.ReactNode;
}
const DraggableBox = ({
tag,
initialX,
initialY,
className = "",
children = ""
}: DraggableBoxProps) => {
const [isDragging, setIsDragging] = useState(false);
const [dragOffset, setDragOffset] = useState({ x: 0, y: 0 });
const [searchParams, setSearchParams] = useSearchParams();
const dragRef = useRef<HTMLDivElement>(null);
const xParam = `x${tag}`;
const yParam = `y${tag}`;
useEffect(() => {
if (!searchParams.has(xParam) || !searchParams.has(yParam)) {
const newParams = new URLSearchParams(searchParams);
newParams.set(xParam, initialX.toString());
newParams.set(yParam, initialY.toString());
setSearchParams(newParams, { replace: true });
}
if (!isDragging) return;
const handleMouseMove = (e: globalThis.MouseEvent) => {
if (!dragRef.current?.parentElement) return;
const parent = dragRef.current.parentElement;
const parentRect = parent.getBoundingClientRect();
const boxRect = dragRef.current.getBoundingClientRect();
const relativeX = e.clientX - parentRect.left - dragOffset.x;
const relativeY = e.clientY - parentRect.top - dragOffset.y;
const maxX = parentRect.width - boxRect.width;
const maxY = parentRect.height - boxRect.height;
const newX = Math.max(0, Math.min(relativeX, maxX));
const newY = Math.max(0, Math.min(relativeY, maxY));
const newParams = new URLSearchParams(searchParams);
newParams.set(xParam, newX.toString());
newParams.set(yParam, newY.toString());
setSearchParams(newParams, { replace: true });
};
const handleMouseUp = () => setIsDragging(false);
window.addEventListener('mousemove', handleMouseMove);
window.addEventListener('mouseup', handleMouseUp);
return () => {
window.removeEventListener('mousemove', handleMouseMove);
window.removeEventListener('mouseup', handleMouseUp);
};
}, [isDragging, dragOffset, tag, searchParams, initialX, initialY]);
const handleMouseDown = (e: MouseEvent) => {
if (!dragRef.current?.parentElement) return;
const parentRect = dragRef.current.parentElement.getBoundingClientRect();
const currentX = parseInt(searchParams.get(xParam) || '0');
const currentY = parseInt(searchParams.get(yParam) || '0');
setDragOffset({
x: e.clientX - parentRect.left - currentX,
y: e.clientY - parentRect.top - currentY
});
setIsDragging(true);
};
return (
<div
ref={dragRef}
className={`absolute cursor-move bg-red-500 rounded-full w-4 h-4 text-white shadow-lg ${className}`}
style={{
transform: `translate(${searchParams.get(xParam) || 0}px, ${searchParams.get(yParam) || 0}px)`,
userSelect: 'none',
}}
onMouseDown={handleMouseDown}
>
{children}
</div>
);
};
export default DraggableBox;