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- (function() {
- var Processor, Value, utils, vendor;
- vendor = require('postcss/lib/vendor');
- Value = require('./value');
- utils = require('./utils');
- Processor = (function() {
- function Processor(_at_prefixes) {
- this.prefixes = _at_prefixes;
- }
- Processor.prototype.add = function(css) {
- var keyframes, resolution, supports, viewport;
- resolution = this.prefixes.add['@resolution'];
- keyframes = this.prefixes.add['@keyframes'];
- viewport = this.prefixes.add['@viewport'];
- supports = this.prefixes.add['@supports'];
- css.eachAtRule((function(_this) {
- return function(rule) {
- if (rule.name === 'keyframes') {
- if (!_this.disabled(rule)) {
- return keyframes != null ? keyframes.process(rule) : void 0;
- }
- } else if (rule.name === 'viewport') {
- if (!_this.disabled(rule)) {
- return viewport != null ? viewport.process(rule) : void 0;
- }
- } else if (rule.name === 'supports') {
- if (!_this.disabled(rule)) {
- return supports.process(rule);
- }
- } else if (rule.name === 'media' && rule.params.indexOf('-resolution') !== -1) {
- if (!_this.disabled(rule)) {
- return resolution != null ? resolution.process(rule) : void 0;
- }
- }
- };
- })(this));
- css.eachRule((function(_this) {
- return function(rule) {
- var selector, _i, _len, _ref, _results;
- if (_this.disabled(rule)) {
- return;
- }
- _ref = _this.prefixes.add.selectors;
- _results = [];
- for (_i = 0, _len = _ref.length; _i < _len; _i++) {
- selector = _ref[_i];
- _results.push(selector.process(rule));
- }
- return _results;
- };
- })(this));
- css.eachDecl((function(_this) {
- return function(decl) {
- var prefix;
- prefix = _this.prefixes.add[decl.prop];
- if (prefix && prefix.prefixes) {
- if (!_this.disabled(decl)) {
- return prefix.process(decl);
- }
- }
- };
- })(this));
- return css.eachDecl((function(_this) {
- return function(decl) {
- var unprefixed, value, _i, _len, _ref;
- if (_this.disabled(decl)) {
- return;
- }
- unprefixed = _this.prefixes.unprefixed(decl.prop);
- _ref = _this.prefixes.values('add', unprefixed);
- for (_i = 0, _len = _ref.length; _i < _len; _i++) {
- value = _ref[_i];
- value.process(decl);
- }
- return Value.save(_this.prefixes, decl);
- };
- })(this));
- };
- Processor.prototype.remove = function(css) {
- var checker, resolution, _i, _len, _ref;
- resolution = this.prefixes.remove['@resolution'];
- css.eachAtRule((function(_this) {
- return function(rule, i) {
- if (_this.prefixes.remove['@' + rule.name]) {
- if (!_this.disabled(rule)) {
- return rule.parent.remove(i);
- }
- } else if (rule.name === 'media' && rule.params.indexOf('-resolution') !== -1) {
- return resolution != null ? resolution.clean(rule) : void 0;
- }
- };
- })(this));
- _ref = this.prefixes.remove.selectors;
- for (_i = 0, _len = _ref.length; _i < _len; _i++) {
- checker = _ref[_i];
- css.eachRule((function(_this) {
- return function(rule, i) {
- if (checker.check(rule)) {
- if (!_this.disabled(rule)) {
- return rule.parent.remove(i);
- }
- }
- };
- })(this));
- }
- return css.eachDecl((function(_this) {
- return function(decl, i) {
- var notHack, rule, unprefixed, _j, _len1, _ref1, _ref2;
- if (_this.disabled(decl)) {
- return;
- }
- rule = decl.parent;
- unprefixed = _this.prefixes.unprefixed(decl.prop);
- if ((_ref1 = _this.prefixes.remove[decl.prop]) != null ? _ref1.remove : void 0) {
- notHack = _this.prefixes.group(decl).down(function(other) {
- return other.prop === unprefixed;
- });
- if (notHack && !_this.withHackValue(decl)) {
- if (decl.style('before').indexOf("\n") > -1) {
- _this.reduceSpaces(decl);
- }
- rule.remove(i);
- return;
- }
- }
- _ref2 = _this.prefixes.values('remove', unprefixed);
- for (_j = 0, _len1 = _ref2.length; _j < _len1; _j++) {
- checker = _ref2[_j];
- if (checker.check(decl.value)) {
- unprefixed = checker.unprefixed;
- notHack = _this.prefixes.group(decl).down(function(other) {
- return other.value.indexOf(unprefixed) !== -1;
- });
- if (notHack) {
- rule.remove(i);
- return;
- } else if (checker.clean) {
- checker.clean(decl);
- return;
- }
- }
- }
- };
- })(this));
- };
- Processor.prototype.withHackValue = function(decl) {
- return decl.prop === '-webkit-background-clip' && decl.value === 'text';
- };
- Processor.prototype.disabled = function(node) {
- var status;
- if (node._autoprefixerDisabled != null) {
- return node._autoprefixerDisabled;
- } else if (node.nodes) {
- status = void 0;
- node.each(function(i) {
- if (i.type !== 'comment') {
- return;
- }
- if (i.text === 'autoprefixer: off') {
- status = false;
- return false;
- } else if (i.text === 'autoprefixer: on') {
- status = true;
- return false;
- }
- });
- return node._autoprefixerDisabled = status != null ? !status : node.parent ? this.disabled(node.parent) : false;
- } else {
- return node._autoprefixerDisabled = this.disabled(node.parent);
- }
- };
- Processor.prototype.reduceSpaces = function(decl) {
- var diff, parts, prevMin, stop;
- stop = false;
- this.prefixes.group(decl).up(function(other) {
- return stop = true;
- });
- if (stop) {
- return;
- }
- parts = decl.style('before').split("\n");
- prevMin = parts[parts.length - 1].length;
- diff = false;
- return this.prefixes.group(decl).down(function(other) {
- var last;
- parts = other.style('before').split("\n");
- last = parts.length - 1;
- if (parts[last].length > prevMin) {
- if (diff === false) {
- diff = parts[last].length - prevMin;
- }
- parts[last] = parts[last].slice(0, -diff);
- return other.before = parts.join("\n");
- }
- });
- };
- return Processor;
- })();
- module.exports = Processor;
- }).call(this);
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