22 lines
825 B
JavaScript
22 lines
825 B
JavaScript
import getScroll from './getScroll';
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/*
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* Sum or subtract the element scroll values (left and top) from a given rect object
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* @method
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* @memberof Popper.Utils
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* @param {Object} rect - Rect object you want to change
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* @param {HTMLElement} element - The element from the function reads the scroll values
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* @param {Boolean} subtract - set to true if you want to subtract the scroll values
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* @return {Object} rect - The modifier rect object
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*/
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export default function includeScroll(rect, element, subtract = false) {
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const scrollTop = getScroll(element, 'top');
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const scrollLeft = getScroll(element, 'left');
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const modifier = subtract ? -1 : 1;
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rect.top += scrollTop * modifier;
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rect.bottom += scrollTop * modifier;
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rect.left += scrollLeft * modifier;
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rect.right += scrollLeft * modifier;
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return rect;
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}
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