import getBoundingClientRect from './getBoundingClientRect.mjs';
import getNodeScroll from './getNodeScroll.mjs';
import getNodeName from './getNodeName.mjs';
import { isHTMLElement } from './instanceOf.mjs';
import getWindowScrollBarX from './getWindowScrollBarX.mjs';
import getDocumentElement from './getDocumentElement.mjs';
import isScrollParent from './isScrollParent.mjs';
import { round } from '../utils/math.mjs';

function isElementScaled(element) {
  var rect = element.getBoundingClientRect();
  var scaleX = round(rect.width) / element.offsetWidth || 1;
  var scaleY = round(rect.height) / element.offsetHeight || 1;
  return scaleX !== 1 || scaleY !== 1;
} // Returns the composite rect of an element relative to its offsetParent.
// Composite means it takes into account transforms as well as layout.


function getCompositeRect(elementOrVirtualElement, offsetParent, isFixed) {
  if (isFixed === void 0) {
    isFixed = false;
  }

  var isOffsetParentAnElement = isHTMLElement(offsetParent);
  var offsetParentIsScaled = isHTMLElement(offsetParent) && isElementScaled(offsetParent);
  var documentElement = getDocumentElement(offsetParent);
  var rect = getBoundingClientRect(elementOrVirtualElement, offsetParentIsScaled, isFixed);
  var scroll = {
    scrollLeft: 0,
    scrollTop: 0
  };
  var offsets = {
    x: 0,
    y: 0
  };

  if (isOffsetParentAnElement || !isOffsetParentAnElement && !isFixed) {
    if (getNodeName(offsetParent) !== 'body' || // https://github.com/popperjs/popper-core/issues/1078
    isScrollParent(documentElement)) {
      scroll = getNodeScroll(offsetParent);
    }

    if (isHTMLElement(offsetParent)) {
      offsets = getBoundingClientRect(offsetParent, true);
      offsets.x += offsetParent.clientLeft;
      offsets.y += offsetParent.clientTop;
    } else if (documentElement) {
      offsets.x = getWindowScrollBarX(documentElement);
    }
  }

  return {
    x: rect.left + scroll.scrollLeft - offsets.x,
    y: rect.top + scroll.scrollTop - offsets.y,
    width: rect.width,
    height: rect.height
  };
}

export { getCompositeRect as default };
//# sourceMappingURL=getCompositeRect.mjs.map
