61 lines
1.8 KiB
JavaScript
61 lines
1.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = getScrollBarSize;
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exports.getTargetScrollBarSize = getTargetScrollBarSize;
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/* eslint-disable no-param-reassign */
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var cached;
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function getScrollBarSize(fresh) {
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if (typeof document === 'undefined') {
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return 0;
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}
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if (fresh || cached === undefined) {
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var inner = document.createElement('div');
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inner.style.width = '100%';
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inner.style.height = '200px';
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var outer = document.createElement('div');
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var outerStyle = outer.style;
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outerStyle.position = 'absolute';
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outerStyle.top = '0';
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outerStyle.left = '0';
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outerStyle.pointerEvents = 'none';
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outerStyle.visibility = 'hidden';
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outerStyle.width = '200px';
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outerStyle.height = '150px';
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outerStyle.overflow = 'hidden';
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outer.appendChild(inner);
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document.body.appendChild(outer);
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var widthContained = inner.offsetWidth;
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outer.style.overflow = 'scroll';
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var widthScroll = inner.offsetWidth;
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if (widthContained === widthScroll) {
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widthScroll = outer.clientWidth;
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}
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document.body.removeChild(outer);
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cached = widthContained - widthScroll;
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}
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return cached;
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}
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function ensureSize(str) {
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var match = str.match(/^(.*)px$/);
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var value = Number(match === null || match === void 0 ? void 0 : match[1]);
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return Number.isNaN(value) ? getScrollBarSize() : value;
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}
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function getTargetScrollBarSize(target) {
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if (typeof document === 'undefined' || !target || !(target instanceof Element)) {
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return {
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width: 0,
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height: 0
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};
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}
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var _getComputedStyle = getComputedStyle(target, '::-webkit-scrollbar'),
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width = _getComputedStyle.width,
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height = _getComputedStyle.height;
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return {
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width: ensureSize(width),
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height: ensureSize(height)
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};
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} |