utils DraggerUtil.js

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  export function DragPosCalc({ x, y, element, dragWrapper, boundaryLimit }) {
  let { top, left, right, bottom } = boundaryLimit;
 
  const offsetWidth = element ? element.offsetWidth : 0;
  const offsetHeight = element ? element.offsetHeight : 0;
 
  const topOffset = top ? offsetHeight - top : 0; 
  const leftOffset = left ? offsetWidth - left : 0;
  const rightOffset = right ? offsetWidth - right : 0;
  const bottomOffset = bottom ? offsetHeight - bottom : 0;
 
  x = Math.max(-leftOffset, Math.min(x, dragWrapper.offsetWidth - element.offsetWidth + rightOffset));
  y = Math.max(-topOffset, Math.min(y, dragWrapper.offsetHeight - element.offsetHeight + bottomOffset));
 
  return { x, y };
}