1 | "use strict";
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2 |
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3 | var Browsers = require('./browsers');
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4 |
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5 | var utils = require('./utils');
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6 |
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7 | var vendor = require('postcss').vendor;
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8 |
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9 |
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10 |
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11 |
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12 |
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13 | function _clone(obj, parent) {
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14 | var cloned = new obj.constructor();
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15 |
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16 | var _arr = Object.keys(obj || {});
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17 |
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18 | for (var _i = 0; _i < _arr.length; _i++) {
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19 | var i = _arr[_i];
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20 | var value = obj[i];
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21 |
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22 | if (i === 'parent' && typeof value === 'object') {
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23 | if (parent) {
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24 | cloned[i] = parent;
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25 | }
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26 | } else if (i === 'source' || i === null) {
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27 | cloned[i] = value;
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28 | } else if (value instanceof Array) {
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29 | cloned[i] = value.map(function (x) {
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30 | return _clone(x, cloned);
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31 | });
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32 | } else if (i !== '_autoprefixerPrefix' && i !== '_autoprefixerValues') {
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33 | if (typeof value === 'object' && value !== null) {
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34 | value = _clone(value, cloned);
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35 | }
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36 |
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37 | cloned[i] = value;
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38 | }
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39 | }
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40 |
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41 | return cloned;
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42 | }
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43 |
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44 | var Prefixer =
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45 |
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46 | function () {
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47 | |
48 |
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49 |
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50 | Prefixer.hack = function hack(klass) {
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51 | var _this = this;
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52 |
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53 | if (!this.hacks) {
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54 | this.hacks = {};
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55 | }
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56 |
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57 | return klass.names.map(function (name) {
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58 | _this.hacks[name] = klass;
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59 | return _this.hacks[name];
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60 | });
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61 | }
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62 | |
63 |
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64 |
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65 | ;
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66 |
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67 | Prefixer.load = function load(name, prefixes, all) {
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68 | var Klass = this.hacks && this.hacks[name];
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69 |
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70 | if (Klass) {
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71 | return new Klass(name, prefixes, all);
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72 | } else {
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73 | return new this(name, prefixes, all);
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74 | }
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75 | }
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76 | |
77 |
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78 |
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79 | ;
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80 |
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81 | Prefixer.clone = function clone(node, overrides) {
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82 | var cloned = _clone(node);
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83 |
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84 | for (var name in overrides) {
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85 | cloned[name] = overrides[name];
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86 | }
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87 |
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88 | return cloned;
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89 | };
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90 |
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91 | function Prefixer(name, prefixes, all) {
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92 | this.prefixes = prefixes;
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93 | this.name = name;
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94 | this.all = all;
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95 | }
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96 | |
97 |
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98 |
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99 |
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100 |
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101 | var _proto = Prefixer.prototype;
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102 |
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103 | _proto.parentPrefix = function parentPrefix(node) {
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104 | var prefix;
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105 |
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106 | if (typeof node._autoprefixerPrefix !== 'undefined') {
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107 | prefix = node._autoprefixerPrefix;
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108 | } else if (node.type === 'decl' && node.prop[0] === '-') {
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109 | prefix = vendor.prefix(node.prop);
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110 | } else if (node.type === 'root') {
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111 | prefix = false;
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112 | } else if (node.type === 'rule' && node.selector.indexOf(':-') !== -1 && /:(-\w+-)/.test(node.selector)) {
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113 | prefix = node.selector.match(/:(-\w+-)/)[1];
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114 | } else if (node.type === 'atrule' && node.name[0] === '-') {
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115 | prefix = vendor.prefix(node.name);
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116 | } else {
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117 | prefix = this.parentPrefix(node.parent);
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118 | }
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119 |
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120 | if (Browsers.prefixes().indexOf(prefix) === -1) {
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121 | prefix = false;
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122 | }
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123 |
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124 | node._autoprefixerPrefix = prefix;
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125 | return node._autoprefixerPrefix;
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126 | }
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127 | |
128 |
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129 |
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130 | ;
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131 |
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132 | _proto.process = function process(node, result) {
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133 | if (!this.check(node)) {
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134 | return undefined;
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135 | }
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136 |
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137 | var parent = this.parentPrefix(node);
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138 | var prefixes = this.prefixes.filter(function (prefix) {
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139 | return !parent || parent === utils.removeNote(prefix);
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140 | });
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141 | var added = [];
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142 |
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143 | for (var _iterator = prefixes, _isArray = Array.isArray(_iterator), _i2 = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
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144 | var _ref;
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145 |
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146 | if (_isArray) {
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147 | if (_i2 >= _iterator.length) break;
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148 | _ref = _iterator[_i2++];
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149 | } else {
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150 | _i2 = _iterator.next();
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151 | if (_i2.done) break;
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152 | _ref = _i2.value;
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153 | }
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154 |
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155 | var prefix = _ref;
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156 |
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157 | if (this.add(node, prefix, added.concat([prefix]), result)) {
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158 | added.push(prefix);
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159 | }
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160 | }
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161 |
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162 | return added;
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163 | }
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164 | |
165 |
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166 |
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167 | ;
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168 |
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169 | _proto.clone = function clone(node, overrides) {
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170 | return Prefixer.clone(node, overrides);
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171 | };
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172 |
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173 | return Prefixer;
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174 | }();
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175 |
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176 | module.exports = Prefixer; |
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