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