mirror of https://github.com/thangisme/notes.git
99 lines
3.3 KiB
JavaScript
99 lines
3.3 KiB
JavaScript
(function() {
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var Prefixer, Resolution, n2f, regexp, split, utils,
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extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
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hasProp = {}.hasOwnProperty;
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Prefixer = require('./prefixer');
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utils = require('./utils');
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n2f = require('num2fraction');
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regexp = /(min|max)-resolution\s*:\s*\d*\.?\d+(dppx|dpi)/gi;
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split = /(min|max)-resolution(\s*:\s*)(\d*\.?\d+)(dppx|dpi)/i;
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Resolution = (function(superClass) {
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extend(Resolution, superClass);
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function Resolution() {
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return Resolution.__super__.constructor.apply(this, arguments);
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}
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Resolution.prototype.prefixName = function(prefix, name) {
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return name = prefix === '-moz-' ? name + '--moz-device-pixel-ratio' : prefix + name + '-device-pixel-ratio';
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};
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Resolution.prototype.prefixQuery = function(prefix, name, colon, value, units) {
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if (units === 'dpi') {
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value = Number(value / 96);
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}
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if (prefix === '-o-') {
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value = n2f(value);
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}
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return this.prefixName(prefix, name) + colon + value;
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};
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Resolution.prototype.clean = function(rule) {
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var j, len, prefix, ref;
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if (!this.bad) {
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this.bad = [];
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ref = this.prefixes;
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for (j = 0, len = ref.length; j < len; j++) {
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prefix = ref[j];
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this.bad.push(this.prefixName(prefix, 'min'));
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this.bad.push(this.prefixName(prefix, 'max'));
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}
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}
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return rule.params = utils.editList(rule.params, (function(_this) {
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return function(queries) {
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return queries.filter(function(query) {
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return _this.bad.every(function(i) {
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return query.indexOf(i) === -1;
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});
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});
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};
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})(this));
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};
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Resolution.prototype.process = function(rule) {
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var parent, prefixes;
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parent = this.parentPrefix(rule);
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prefixes = parent ? [parent] : this.prefixes;
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return rule.params = utils.editList(rule.params, (function(_this) {
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return function(origin, prefixed) {
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var j, k, len, len1, prefix, processed, query;
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for (j = 0, len = origin.length; j < len; j++) {
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query = origin[j];
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if (query.indexOf('min-resolution') === -1 && query.indexOf('max-resolution') === -1) {
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prefixed.push(query);
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continue;
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}
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for (k = 0, len1 = prefixes.length; k < len1; k++) {
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prefix = prefixes[k];
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if (prefix === '-moz-' && rule.params.indexOf('dpi') !== -1) {
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continue;
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} else {
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processed = query.replace(regexp, function(str) {
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var parts;
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parts = str.match(split);
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return _this.prefixQuery(prefix, parts[1], parts[2], parts[3], parts[4]);
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});
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prefixed.push(processed);
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}
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}
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prefixed.push(query);
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}
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return utils.uniq(prefixed);
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};
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})(this));
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};
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return Resolution;
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})(Prefixer);
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module.exports = Resolution;
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}).call(this);
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