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import findCommonOffsetParent from './findCommonOffsetParent';
import getOffsetRectRelativeToArbitraryNode from './getOffsetRectRelativeToArbitraryNode';
import getFixedPositionOffsetParent from './getFixedPositionOffsetParent';
import getReferenceNode from './getReferenceNode';
/**
* Get offsets to the reference element
* @method
* @memberof Popper.Utils
* @param {Object} state
* @param {Element} popper - the popper element
* @param {Element} reference - the reference element (the popper will be relative to this)
* @param {Element} fixedPosition - is in fixed position mode
* @returns {Object} An object containing the offsets which will be applied to the popper
*/
export default function getReferenceOffsets(state, popper, reference, fixedPosition = null) {
const commonOffsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, getReferenceNode(reference));
return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent, fixedPosition);
}