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- import { getOffset } from './offset';
- const locks = new Set();
- export function lockBodyScrolling(lockingEl) {
- locks.add(lockingEl);
- document.body.classList.add('sl-scroll-lock');
- }
- export function unlockBodyScrolling(lockingEl) {
- locks.delete(lockingEl);
- if (locks.size === 0) {
- document.body.classList.remove('sl-scroll-lock');
- }
- }
- export function scrollIntoView(element, container, direction = 'vertical', behavior = 'smooth') {
- const offset = getOffset(element, container);
- const offsetTop = offset.top + container.scrollTop;
- const offsetLeft = offset.left + container.scrollLeft;
- const minX = container.scrollLeft;
- const maxX = container.scrollLeft + container.offsetWidth;
- const minY = container.scrollTop;
- const maxY = container.scrollTop + container.offsetHeight;
- if (direction === 'horizontal' || direction === 'both') {
- if (offsetLeft < minX) {
- container.scrollTo({ left: offsetLeft, behavior });
- }
- else if (offsetLeft + element.clientWidth > maxX) {
- container.scrollTo({ left: offsetLeft - container.offsetWidth + element.clientWidth, behavior });
- }
- }
- if (direction === 'vertical' || direction === 'both') {
- if (offsetTop < minY) {
- container.scrollTo({ top: offsetTop, behavior });
- }
- else if (offsetTop + element.clientHeight > maxY) {
- container.scrollTo({ top: offsetTop - container.offsetHeight + element.clientHeight, behavior });
- }
- }
- }
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