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Diffstat (limited to 'node_modules/autoprefixer/lib/autoprefixer.js')
| -rw-r--r-- | node_modules/autoprefixer/lib/autoprefixer.js | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/node_modules/autoprefixer/lib/autoprefixer.js b/node_modules/autoprefixer/lib/autoprefixer.js new file mode 100644 index 0000000..ce70740 --- /dev/null +++ b/node_modules/autoprefixer/lib/autoprefixer.js @@ -0,0 +1,157 @@ +"use strict"; + +var browserslist = require('browserslist'); + +var postcss = require('postcss'); + +var agents = require('caniuse-lite').agents; + +var chalk = require('chalk'); + +var Browsers = require('./browsers'); + +var Prefixes = require('./prefixes'); + +var data = require('../data/prefixes'); + +var info = require('./info'); + +var WARNING = '\n' + ' Replace Autoprefixer `browsers` option to Browserslist config.\n' + ' Use `browserslist` key in `package.json` or `.browserslistrc` file.\n' + '\n' + ' Using `browsers` option cause some error. Browserslist config \n' + ' can be used for Babel, Autoprefixer, postcss-normalize and other tools.\n' + '\n' + ' If you really need to use option, rename it to `overrideBrowserslist`.\n' + '\n' + ' Learn more at:\n' + ' https://github.com/browserslist/browserslist#readme\n' + ' https://twitter.com/browserslist\n' + '\n'; + +function isPlainObject(obj) { + return Object.prototype.toString.apply(obj) === '[object Object]'; +} + +var cache = {}; + +function timeCapsule(result, prefixes) { + if (prefixes.browsers.selected.length === 0) { + return; + } + + if (prefixes.add.selectors.length > 0) { + return; + } + + if (Object.keys(prefixes.add).length > 2) { + return; + } + /* istanbul ignore next */ + + + result.warn('Greetings, time traveller. ' + 'We are in the golden age of prefix-less CSS, ' + 'where Autoprefixer is no longer needed for your stylesheet.'); +} + +module.exports = postcss.plugin('autoprefixer', function () { + for (var _len = arguments.length, reqs = new Array(_len), _key = 0; _key < _len; _key++) { + reqs[_key] = arguments[_key]; + } + + var options; + + if (reqs.length === 1 && isPlainObject(reqs[0])) { + options = reqs[0]; + reqs = undefined; + } else if (reqs.length === 0 || reqs.length === 1 && !reqs[0]) { + reqs = undefined; + } else if (reqs.length <= 2 && (Array.isArray(reqs[0]) || !reqs[0])) { + options = reqs[1]; + reqs = reqs[0]; + } else if (typeof reqs[reqs.length - 1] === 'object') { + options = reqs.pop(); + } + + if (!options) { + options = {}; + } + + if (options.browser) { + throw new Error('Change `browser` option to `overrideBrowserslist` in Autoprefixer'); + } else if (options.browserslist) { + throw new Error('Change `browserslist` option to `overrideBrowserslist` in Autoprefixer'); + } + + if (options.overrideBrowserslist) { + reqs = options.overrideBrowserslist; + } else if (options.browsers) { + if (typeof console !== 'undefined' && console.warn) { + if (chalk && chalk.red) { + console.warn(chalk.red(WARNING.replace(/`[^`]+`/g, function (i) { + return chalk.yellow(i.slice(1, -1)); + }))); + } else { + console.warn(WARNING); + } + } + + reqs = options.browsers; + } + + if (typeof options.grid === 'undefined') { + options.grid = false; + } + + var brwlstOpts = { + ignoreUnknownVersions: options.ignoreUnknownVersions, + stats: options.stats + }; + + function loadPrefixes(opts) { + var d = module.exports.data; + var browsers = new Browsers(d.browsers, reqs, opts, brwlstOpts); + var key = browsers.selected.join(', ') + JSON.stringify(options); + + if (!cache[key]) { + cache[key] = new Prefixes(d.prefixes, browsers, options); + } + + return cache[key]; + } + + function plugin(css, result) { + var prefixes = loadPrefixes({ + from: css.source && css.source.input.file, + env: options.env + }); + timeCapsule(result, prefixes); + + if (options.remove !== false) { + prefixes.processor.remove(css, result); + } + + if (options.add !== false) { + prefixes.processor.add(css, result); + } + } + + plugin.options = options; + plugin.browsers = reqs; + + plugin.info = function (opts) { + opts = opts || {}; + opts.from = opts.from || process.cwd(); + return info(loadPrefixes(opts)); + }; + + return plugin; +}); +/** + * Autoprefixer data + */ + +module.exports.data = { + browsers: agents, + prefixes: data +}; +/** + * Autoprefixer default browsers + */ + +module.exports.defaults = browserslist.defaults; +/** + * Inspect with default Autoprefixer + */ + +module.exports.info = function () { + return module.exports().info(); +};
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