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Prevents adding units to css custom properties #9966

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merged 6 commits into from
Jun 14, 2017
Merged

Prevents adding units to css custom properties #9966

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8638845
Prevents adding units to css custom properties
TrySound Jun 14, 2017
689bfe1
Fix code style
TrySound Jun 14, 2017
2276370
Optimize custom property checking
TrySound Jun 14, 2017
1235b39
Prevents adding units to css custom properties in markup creation
TrySound Jun 14, 2017
8b62b32
Update passing tests
gaearon Jun 14, 2017
97f8d00
Fix argument name and reuse check in DEV
gaearon Jun 14, 2017
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4 changes: 3 additions & 1 deletion src/renderers/dom/shared/CSSPropertyOperations.js
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Original file line number Diff line number Diff line change
Expand Up @@ -230,15 +230,17 @@ var CSSPropertyOperations = {
if (__DEV__) {
warnValidStyle(styleName, styles[styleName], component);
}
var isCustomProperty = styleName.indexOf('--') === 0;
var styleValue = dangerousStyleValue(
styleName,
styles[styleName],
component,
isCustomProperty,
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This is not the only place this function is called as far as I can see. Can you please make sure this argument always exists?

);
if (styleName === 'float') {
styleName = 'cssFloat';
}
if (styleName.indexOf('--') === 0) {
if (isCustomProperty) {
style.setProperty(styleName, styleValue);
} else if (styleValue) {
style[styleName] = styleValue;
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2 changes: 1 addition & 1 deletion src/renderers/dom/shared/__tests__/CSSPropertyOperations-test.js
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Expand Up @@ -291,7 +291,7 @@ describe('CSSPropertyOperations', () => {
it('should not add units to CSS custom properties', () => {
class Comp extends React.Component {
render() {
return <div style={{ '--foo': 5 }} />;
return <div style={{'--foo': 5}} />;
}
}

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4 changes: 2 additions & 2 deletions src/renderers/dom/shared/dangerousStyleValue.js
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Expand Up @@ -25,7 +25,7 @@ var isUnitlessNumber = CSSProperty.isUnitlessNumber;
* @param {ReactDOMComponent} component
* @return {string} Normalized style value with dimensions applied.
*/
function dangerousStyleValue(name, value, component) {
function dangerousStyleValue(name, value, component, 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
Expand All @@ -42,7 +42,7 @@ function dangerousStyleValue(name, value, component) {
}

if (
name.indexOf('--') !== 0 &&
!isCustomProperty &&
typeof value === 'number' &&
value !== 0 &&
!(isUnitlessNumber.hasOwnProperty(name) && isUnitlessNumber[name])
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