@mcdevsl/superset-ui
Version:
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text/typescript
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
let cached: number | undefined;
const css = (x: TemplateStringsArray) => x.join('\n');
export default function getScrollBarSize(forceRefresh = false) {
if (typeof document === 'undefined') {
return 0;
}
if (cached === undefined || forceRefresh) {
const inner = document.createElement('div');
const outer = document.createElement('div');
inner.style.cssText = css`
width: auto;
height: 100%;
overflow: scroll;
`;
outer.style.cssText = css`
position: absolute;
visibility: hidden;
overflow: hidden;
width: 100px;
height: 50px;
`;
outer.append(inner);
document.body.append(outer);
cached = outer.clientWidth - inner.clientWidth;
outer.remove();
}
return cached;
}