zoriya/react-native-web
1
0
Fork 0
mirror of https://github.com/zoriya/react-native-web.git synced 2026-05-23 06:48:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

[fix] StyleSheet.hairlineWidth guard against missing document.body

Browse Source
This commit is contained in:
Nicolas Gallagher
2018-01-04 13:41:49 -08:00
parent 87fdd6c73b
commit 6d9154196e
1 changed files with 9 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
packages/react-native-web/src/exports/StyleSheet/getHairlineWidth.js
Vendored
+9 -6
View File
@@ -8,13 +8,16 @@ import { canUseDOM } from 'fbjs/lib/ExecutionEnvironment';
const getHairlineWidth = () => {
let hairlineWidth = 1;
if (canUseDOM && window.devicePixelRatio && window.devicePixelRatio >= 2) {
const node = document.createElement('div');
node.style.border = '.5px solid transparent';
document.body.appendChild(node);
if (node.offsetHeight === 1) {
hairlineWidth = 0.5;
const body = document.body;
if (body) {
const node = document.createElement('div');
node.style.border = '.5px solid transparent';
body.appendChild(node);
if (node.offsetHeight === 1) {
hairlineWidth = 0.5;
}
body.removeChild(node);
}
document.body.removeChild(node);
}
return hairlineWidth;
};