Function getBounds

src/js/utils/bounds.js:8–39

(body, el)

let zeroElement = null;

export function getBounds(body, el) {
  let doc;
  if (el === document) {
    doc = document;
    el = document.documentElement;
  } else {
    doc = el.ownerDocument;
  }

  const docEl = doc.documentElement;

  const box = _getActualBoundingClientRect(el);

  const origin = _getOrigin(body);

  box.top -= origin.top;
  box.left -= origin.left;

  if (isUndefined(box.width)) {
    box.width = document.body.scrollWidth - box.left - box.right;
  }
  if (isUndefined(box.height)) {
    box.height = document.body.scrollHeight - box.top - box.bottom;
  }

  box.top = box.top - docEl.clientTop;
  box.left = box.left - docEl.clientLeft;
  box.right = doc.body.clientWidth - box.width - box.left;
  box.bottom = doc.body.clientHeight - box.height - box.top;

  return box;
}

/**
 * Gets bounds for when target modifiier is 'scroll-handle'