const badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;
const msPattern = /^-ms-/;
const hyphenPattern = /-(.)/g;
const badStyleValueWithSemicolonPattern = /;\s*$/;
const warnedStyleNames = {};
const warnedStyleValues = {};
let warnedForNaNValue = false;
let warnedForInfinityValue = false;
function camelize(string) {
return string.replace(hyphenPattern, function (_, character) {
return character.toUpperCase();
});
}
function warnHyphenatedStyleName(name) {
if (__DEV__) {
if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
return;
}
warnedStyleNames[name] = true;
console.error(
'Unsupported style property %s. Did you mean %s?',
name,
camelize(name.replace(msPattern, 'ms-')),
);
}
}
function warnBadVendoredStyleName(name) {
if (__DEV__) {
if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
return;
}
warnedStyleNames[name] = true;
console.error(
'Unsupported vendor-prefixed style property %s. Did you mean %s?',
name,
name.charAt(0).toUpperCase() + name.slice(1),
);
}
}
function warnStyleValueWithSemicolon(name, value) {
if (__DEV__) {
if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
return;
}
warnedStyleValues[value] = true;
console.error(
"Style property values shouldn't contain a semicolon. " +
'Try "%s: %s" instead.',
name,
value.replace(badStyleValueWithSemicolonPattern, ''),
);
}
}
function warnStyleValueIsNaN(name, value) {
if (__DEV__) {
if (warnedForNaNValue) {
return;
}
warnedForNaNValue = true;
console.error(
'`NaN` is an invalid value for the `%s` css style property.',
name,
);
}
}
function warnStyleValueIsInfinity(name, value) {
if (__DEV__) {
if (warnedForInfinityValue) {
return;
}
warnedForInfinityValue = true;
console.error(
'`Infinity` is an invalid value for the `%s` css style property.',
name,
);
}
}
function warnValidStyle(name, value) {
if (__DEV__) {
if (name.indexOf('-') > -1) {
warnHyphenatedStyleName(name);
} else if (badVendoredStyleNamePattern.test(name)) {
warnBadVendoredStyleName(name);
} else if (badStyleValueWithSemicolonPattern.test(value)) {
warnStyleValueWithSemicolon(name, value);
}
if (typeof value === 'number') {
if (isNaN(value)) {
warnStyleValueIsNaN(name, value);
} else if (!isFinite(value)) {
warnStyleValueIsInfinity(name, value);
}
}
}
}
export default warnValidStyle;