46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
|
module.exports = function postcssPrefixSelector(options) {
|
||
|
|
const prefix = options.prefix;
|
||
|
|
const prefixWithSpace = /\s+$/.test(prefix) ? prefix : `${prefix} `;
|
||
|
|
|
||
|
|
return function(root) {
|
||
|
|
root.walkRules(rule => {
|
||
|
|
const keyframeRules = [
|
||
|
|
'keyframes',
|
||
|
|
'-webkit-keyframes',
|
||
|
|
'-moz-keyframes',
|
||
|
|
'-o-keyframes'
|
||
|
|
];
|
||
|
|
|
||
|
|
if (rule.parent && keyframeRules.includes(rule.parent.name)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
rule.selectors = rule.selectors.map(selector => {
|
||
|
|
if (options.exclude && excludeSelector(selector, options.exclude)) {
|
||
|
|
return selector;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (options.transform) {
|
||
|
|
return options.transform(
|
||
|
|
prefix,
|
||
|
|
selector,
|
||
|
|
prefixWithSpace + selector
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return prefixWithSpace + selector;
|
||
|
|
});
|
||
|
|
});
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
function excludeSelector(selector, excludeArr) {
|
||
|
|
return excludeArr.some(excludeRule => {
|
||
|
|
if (excludeRule instanceof RegExp) {
|
||
|
|
return excludeRule.test(selector);
|
||
|
|
}
|
||
|
|
|
||
|
|
return selector === excludeRule;
|
||
|
|
});
|
||
|
|
}
|