getBoundingClientRect.js
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getBoundingClientRect.js
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			import { isElement, isHTMLElement } from "./instanceOf.js";
			import { round } from "../utils/math.js";
			import getWindow from "./getWindow.js";
			import isLayoutViewport from "./isLayoutViewport.js";
			export default function getBoundingClientRect(element, includeScale, isFixedStrategy) {
			if (includeScale === void 0) {
			includeScale = false;
			}

			if (isFixedStrategy === void 0) {
			isFixedStrategy = false;
			}

			var clientRect = element.getBoundingClientRect();
			var scaleX = 1;
			var scaleY = 1;

			if (includeScale && isHTMLElement(element)) {
			scaleX = element.offsetWidth > 0 ? round(clientRect.width) / element.offsetWidth \|\| 1 : 1;
			scaleY = element.offsetHeight > 0 ? round(clientRect.height) / element.offsetHeight \|\| 1 : 1;
			}

			var _ref = isElement(element) ? getWindow(element) : window,
			visualViewport = _ref.visualViewport;

			var addVisualOffsets = !isLayoutViewport() && isFixedStrategy;
			var x = (clientRect.left + (addVisualOffsets && visualViewport ? visualViewport.offsetLeft : 0)) / scaleX;
			var y = (clientRect.top + (addVisualOffsets && visualViewport ? visualViewport.offsetTop : 0)) / scaleY;
			var width = clientRect.width / scaleX;
			var height = clientRect.height / scaleY;
			return {
			width: width,
			height: height,
			top: y,
			right: x + width,
			bottom: y + height,
			left: x,
			x: x,
			y: y
			};
			}