devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
30 lines (28 loc) • 1.01 kB
JavaScript
/**
* DevExtreme (esm/renovation/ui/scroll_view/utils/normalize_offset_left.js)
* Version: 21.2.4
* Build date: Mon Dec 06 2021
*
* Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import getScrollRtlBehavior from "../../../../core/utils/scroll_rtl_behavior";
function isScrollInverted(rtlEnabled) {
var {
decreasing: decreasing,
positive: positive
} = getScrollRtlBehavior();
return rtlEnabled && decreasing !== positive
}
export function getScrollSign(rtlEnabled) {
return isScrollInverted(rtlEnabled) && getScrollRtlBehavior().positive ? -1 : 1
}
export function normalizeOffsetLeft(scrollLeft, maxLeftOffset, rtlEnabled) {
if (isScrollInverted(rtlEnabled)) {
if (getScrollRtlBehavior().positive) {
return maxLeftOffset - scrollLeft
}
return maxLeftOffset + scrollLeft
}
return scrollLeft
}