create-expo-cljs-app
Version:
Create a react native application with Expo and Shadow-CLJS!
46 lines (40 loc) • 1.73 kB
JavaScript
/* eslint-disable */
/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* From React 16.0.0
*
*/
import isUnitlessNumber from '../unitlessNumbers';
/**
* Convert a value into the proper css writable value. The style name `name`
* should be logical (no hyphens), as specified
* in `CSSProperty.isUnitlessNumber`.
*
* @param {string} name CSS property name such as `topMargin`.
* @param {*} value CSS property value such as `10px`.
* @return {string} Normalized style value with dimensions applied.
*/
function dangerousStyleValue(name, value, isCustomProperty) {
// Note that we've removed escapeTextForBrowser() calls here since the
// whole string will be escaped when the attribute is injected into
// the markup. If you provide unsafe user data here they can inject
// arbitrary CSS which may be problematic (I couldn't repro this):
// https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
// http://www.thespanner.co.uk/2007/11/26/ultimate-xss-css-injection/
// This is not an XSS hole but instead a potential CSS injection issue
// which has lead to a greater discussion about how we're going to
// trust URLs moving forward. See #2115901
var isEmpty = value == null || typeof value === 'boolean' || value === '';
if (isEmpty) {
return '';
}
if (!isCustomProperty && typeof value === 'number' && value !== 0 && !(isUnitlessNumber.hasOwnProperty(name) && isUnitlessNumber[name])) {
return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
}
return ('' + value).trim();
}
export default dangerousStyleValue;