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perf: support postcss8 #89

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perf: support postcss8 #89

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362b031
perf: support postcss8
Mar 11, 2021
fc1626d
fix:plugin name
Mar 12, 2021
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200 changes: 102 additions & 98 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@ var defaults = {
var ignoreNextComment = 'px-to-viewport-ignore-next';
var ignorePrevComment = 'px-to-viewport-ignore';

module.exports = postcss.plugin('postcss-px-to-viewport', function (options) {
module.exports = function (options) {
var opts = objectAssign({}, defaults, options);

checkRegExpOrArray(opts, 'exclude');
Expand All @@ -34,115 +34,119 @@ module.exports = postcss.plugin('postcss-px-to-viewport', function (options) {
var pxRegex = getUnitRegexp(opts.unitToConvert);
var satisfyPropList = createPropListMatcher(opts.propList);
var landscapeRules = [];

return function (css, result) {
css.walkRules(function (rule) {
// Add exclude option to ignore some files like 'node_modules'
var file = rule.source && rule.source.input.file;

if (opts.include && file) {
if (Object.prototype.toString.call(opts.include) === '[object RegExp]') {
if (!opts.include.test(file)) return;
} else if (Object.prototype.toString.call(opts.include) === '[object Array]') {
var flag = false;
for (var i = 0; i < opts.include.length; i++) {
if (opts.include[i].test(file)) {
flag = true;
break;
return {
postcssPlugin: 'postcss-px-to-viewport',
Once(css, { result }) {
css.walkRules(function (rule) {
// Add exclude option to ignore some files like 'node_modules'
var file = rule.source && rule.source.input.file;

if (opts.include && file) {
if (Object.prototype.toString.call(opts.include) === '[object RegExp]') {
if (!opts.include.test(file)) return;
} else if (Object.prototype.toString.call(opts.include) === '[object Array]') {
var flag = false;
for (var i = 0; i < opts.include.length; i++) {
if (opts.include[i].test(file)) {
flag = true;
break;
}
}
if (!flag) return;
}
if (!flag) return;
}
}

if (opts.exclude && file) {
if (Object.prototype.toString.call(opts.exclude) === '[object RegExp]') {
if (opts.exclude.test(file)) return;
} else if (Object.prototype.toString.call(opts.exclude) === '[object Array]') {
for (var i = 0; i < opts.exclude.length; i++) {
if (opts.exclude[i].test(file)) return;

if (opts.exclude && file) {
if (Object.prototype.toString.call(opts.exclude) === '[object RegExp]') {
if (opts.exclude.test(file)) return;
} else if (Object.prototype.toString.call(opts.exclude) === '[object Array]') {
for (var i = 0; i < opts.exclude.length; i++) {
if (opts.exclude[i].test(file)) return;
}
}
}
}

if (blacklistedSelector(opts.selectorBlackList, rule.selector)) return;

if (opts.landscape && !rule.parent.params) {
var landscapeRule = rule.clone().removeAll();

rule.walkDecls(function(decl) {

if (blacklistedSelector(opts.selectorBlackList, rule.selector)) return;

if (opts.landscape && !rule.parent.params) {
var landscapeRule = rule.clone().removeAll();

rule.walkDecls(function(decl) {
if (decl.value.indexOf(opts.unitToConvert) === -1) return;
if (!satisfyPropList(decl.prop)) return;

landscapeRule.append(decl.clone({
value: decl.value.replace(pxRegex, createPxReplace(opts, opts.landscapeUnit, opts.landscapeWidth))
}));
});

if (landscapeRule.nodes.length > 0) {
landscapeRules.push(landscapeRule);
}
}

if (!validateParams(rule.parent.params, opts.mediaQuery)) return;

rule.walkDecls(function(decl, i) {
if (decl.value.indexOf(opts.unitToConvert) === -1) return;
if (!satisfyPropList(decl.prop)) return;

landscapeRule.append(decl.clone({
value: decl.value.replace(pxRegex, createPxReplace(opts, opts.landscapeUnit, opts.landscapeWidth))
}));
});

if (landscapeRule.nodes.length > 0) {
landscapeRules.push(landscapeRule);
}
}

if (!validateParams(rule.parent.params, opts.mediaQuery)) return;

rule.walkDecls(function(decl, i) {
if (decl.value.indexOf(opts.unitToConvert) === -1) return;
if (!satisfyPropList(decl.prop)) return;

var prev = decl.prev();
// prev declaration is ignore conversion comment at same line
if (prev && prev.type === 'comment' && prev.text === ignoreNextComment) {
// remove comment
prev.remove();
return;
}
var next = decl.next();
// next declaration is ignore conversion comment at same line
if (next && next.type === 'comment' && next.text === ignorePrevComment) {
if (/\n/.test(next.raws.before)) {
result.warn('Unexpected comment /* ' + ignorePrevComment + ' */ must be after declaration at same line.', { node: next });
} else {

var prev = decl.prev();
// prev declaration is ignore conversion comment at same line
if (prev && prev.type === 'comment' && prev.text === ignoreNextComment) {
// remove comment
next.remove();
prev.remove();
return;
}
}

var unit;
var size;
var params = rule.parent.params;

if (opts.landscape && params && params.indexOf('landscape') !== -1) {
unit = opts.landscapeUnit;
size = opts.landscapeWidth;
} else {
unit = getUnit(decl.prop, opts);
size = opts.viewportWidth;
}

var value = decl.value.replace(pxRegex, createPxReplace(opts, unit, size));

if (declarationExists(decl.parent, decl.prop, value)) return;

if (opts.replace) {
decl.value = value;
} else {
decl.parent.insertAfter(i, decl.clone({ value: value }));
}
});
});

if (landscapeRules.length > 0) {
var landscapeRoot = new postcss.atRule({ params: '(orientation: landscape)', name: 'media' });

landscapeRules.forEach(function(rule) {
landscapeRoot.append(rule);
var next = decl.next();
// next declaration is ignore conversion comment at same line
if (next && next.type === 'comment' && next.text === ignorePrevComment) {
if (/\n/.test(next.raws.before)) {
result.warn('Unexpected comment /* ' + ignorePrevComment + ' */ must be after declaration at same line.', { node: next });
} else {
// remove comment
next.remove();
return;
}
}

var unit;
var size;
var params = rule.parent.params;

if (opts.landscape && params && params.indexOf('landscape') !== -1) {
unit = opts.landscapeUnit;
size = opts.landscapeWidth;
} else {
unit = getUnit(decl.prop, opts);
size = opts.viewportWidth;
}

var value = decl.value.replace(pxRegex, createPxReplace(opts, unit, size));

if (declarationExists(decl.parent, decl.prop, value)) return;

if (opts.replace) {
decl.value = value;
} else {
decl.parent.insertAfter(i, decl.clone({ value: value }));
}
});
});
css.append(landscapeRoot);

if (landscapeRules.length > 0) {
var landscapeRoot = new postcss.atRule({ params: '(orientation: landscape)', name: 'media' });

landscapeRules.forEach(function(rule) {
landscapeRoot.append(rule);
});
css.append(landscapeRoot);
}
}
};
});
}
}

module.exports.postcss = true

function getUnit(prop, opts) {
return prop.indexOf('font') === -1 ? opts.viewportUnit : opts.fontViewportUnit;
Expand Down
4 changes: 2 additions & 2 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -32,9 +32,9 @@
},
"devDependencies": {
"jest": "^25.4.0",
"postcss": ">=5.0.2"
"postcss": "^8.0.0"
},
"peerDependencies": {
"postcss": ">=5.0.2"
"postcss": "^8.0.0"
}
}