1 | 'use strict'
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2 |
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3 | let Declaration = require('./declaration')
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4 | let { isClean } = require('./symbols')
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5 | let Comment = require('./comment')
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6 | let Node = require('./node')
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7 |
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8 | let parse, Rule, AtRule
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9 |
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10 | function cleanSource (nodes) {
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11 | return nodes.map(i => {
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12 | if (i.nodes) i.nodes = cleanSource(i.nodes)
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13 | delete i.source
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14 | return i
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15 | })
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16 | }
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17 |
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18 | function markDirtyUp (node) {
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19 | node[isClean] = false
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20 | if (node.proxyOf.nodes) {
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21 | for (let i of node.proxyOf.nodes) {
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22 | markDirtyUp(i)
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23 | }
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24 | }
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25 | }
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26 |
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27 |
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28 | function rebuild (node) {
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29 | if (node.type === 'atrule') {
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30 | Object.setPrototypeOf(node, AtRule.prototype)
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31 | } else if (node.type === 'rule') {
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32 | Object.setPrototypeOf(node, Rule.prototype)
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33 | } else if (node.type === 'decl') {
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34 | Object.setPrototypeOf(node, Declaration.prototype)
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35 | } else if (node.type === 'comment') {
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36 | Object.setPrototypeOf(node, Comment.prototype)
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37 | }
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38 |
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39 | if (node.nodes) {
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40 | node.nodes.forEach(child => {
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41 | rebuild(child)
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42 | })
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43 | }
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44 | }
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45 |
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46 | class Container extends Node {
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47 | push (child) {
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48 | child.parent = this
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49 | this.proxyOf.nodes.push(child)
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50 | return this
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51 | }
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52 |
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53 | each (callback) {
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54 | if (!this.proxyOf.nodes) return undefined
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55 | let iterator = this.getIterator()
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56 |
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57 | let index, result
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58 | while (this.indexes[iterator] < this.proxyOf.nodes.length) {
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59 | index = this.indexes[iterator]
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60 | result = callback(this.proxyOf.nodes[index], index)
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61 | if (result === false) break
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62 |
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63 | this.indexes[iterator] += 1
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64 | }
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65 |
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66 | delete this.indexes[iterator]
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67 | return result
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68 | }
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69 |
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70 | walk (callback) {
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71 | return this.each((child, i) => {
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72 | let result
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73 | try {
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74 | result = callback(child, i)
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75 | } catch (e) {
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76 | throw child.addToError(e)
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77 | }
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78 | if (result !== false && child.walk) {
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79 | result = child.walk(callback)
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80 | }
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81 |
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82 | return result
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83 | })
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84 | }
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85 |
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86 | walkDecls (prop, callback) {
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87 | if (!callback) {
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88 | callback = prop
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89 | return this.walk((child, i) => {
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90 | if (child.type === 'decl') {
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91 | return callback(child, i)
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92 | }
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93 | })
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94 | }
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95 | if (prop instanceof RegExp) {
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96 | return this.walk((child, i) => {
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97 | if (child.type === 'decl' && prop.test(child.prop)) {
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98 | return callback(child, i)
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99 | }
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100 | })
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101 | }
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102 | return this.walk((child, i) => {
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103 | if (child.type === 'decl' && child.prop === prop) {
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104 | return callback(child, i)
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105 | }
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106 | })
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107 | }
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108 |
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109 | walkRules (selector, callback) {
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110 | if (!callback) {
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111 | callback = selector
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112 |
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113 | return this.walk((child, i) => {
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114 | if (child.type === 'rule') {
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115 | return callback(child, i)
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116 | }
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117 | })
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118 | }
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119 | if (selector instanceof RegExp) {
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120 | return this.walk((child, i) => {
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121 | if (child.type === 'rule' && selector.test(child.selector)) {
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122 | return callback(child, i)
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123 | }
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124 | })
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125 | }
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126 | return this.walk((child, i) => {
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127 | if (child.type === 'rule' && child.selector === selector) {
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128 | return callback(child, i)
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129 | }
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130 | })
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131 | }
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132 |
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133 | walkAtRules (name, callback) {
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134 | if (!callback) {
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135 | callback = name
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136 | return this.walk((child, i) => {
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137 | if (child.type === 'atrule') {
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138 | return callback(child, i)
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139 | }
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140 | })
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141 | }
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142 | if (name instanceof RegExp) {
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143 | return this.walk((child, i) => {
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144 | if (child.type === 'atrule' && name.test(child.name)) {
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145 | return callback(child, i)
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146 | }
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147 | })
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148 | }
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149 | return this.walk((child, i) => {
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150 | if (child.type === 'atrule' && child.name === name) {
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151 | return callback(child, i)
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152 | }
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153 | })
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154 | }
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155 |
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156 | walkComments (callback) {
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157 | return this.walk((child, i) => {
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158 | if (child.type === 'comment') {
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159 | return callback(child, i)
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160 | }
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161 | })
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162 | }
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163 |
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164 | append (...children) {
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165 | for (let child of children) {
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166 | let nodes = this.normalize(child, this.last)
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167 | for (let node of nodes) this.proxyOf.nodes.push(node)
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168 | }
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169 |
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170 | this.markDirty()
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171 |
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172 | return this
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173 | }
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174 |
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175 | prepend (...children) {
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176 | children = children.reverse()
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177 | for (let child of children) {
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178 | let nodes = this.normalize(child, this.first, 'prepend').reverse()
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179 | for (let node of nodes) this.proxyOf.nodes.unshift(node)
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180 | for (let id in this.indexes) {
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181 | this.indexes[id] = this.indexes[id] + nodes.length
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182 | }
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183 | }
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184 |
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185 | this.markDirty()
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186 |
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187 | return this
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188 | }
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189 |
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190 | cleanRaws (keepBetween) {
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191 | super.cleanRaws(keepBetween)
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192 | if (this.nodes) {
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193 | for (let node of this.nodes) node.cleanRaws(keepBetween)
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194 | }
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195 | }
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196 |
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197 | insertBefore (exist, add) {
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198 | exist = this.index(exist)
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199 |
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200 | let type = exist === 0 ? 'prepend' : false
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201 | let nodes = this.normalize(add, this.proxyOf.nodes[exist], type).reverse()
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202 | for (let node of nodes) this.proxyOf.nodes.splice(exist, 0, node)
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203 |
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204 | let index
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205 | for (let id in this.indexes) {
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206 | index = this.indexes[id]
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207 | if (exist <= index) {
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208 | this.indexes[id] = index + nodes.length
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209 | }
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210 | }
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211 |
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212 | this.markDirty()
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213 |
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214 | return this
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215 | }
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216 |
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217 | insertAfter (exist, add) {
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218 | exist = this.index(exist)
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219 |
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220 | let nodes = this.normalize(add, this.proxyOf.nodes[exist]).reverse()
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221 | for (let node of nodes) this.proxyOf.nodes.splice(exist + 1, 0, node)
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222 |
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223 | let index
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224 | for (let id in this.indexes) {
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225 | index = this.indexes[id]
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226 | if (exist < index) {
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227 | this.indexes[id] = index + nodes.length
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228 | }
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229 | }
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230 |
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231 | this.markDirty()
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232 |
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233 | return this
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234 | }
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235 |
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236 | removeChild (child) {
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237 | child = this.index(child)
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238 | this.proxyOf.nodes[child].parent = undefined
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239 | this.proxyOf.nodes.splice(child, 1)
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240 |
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241 | let index
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242 | for (let id in this.indexes) {
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243 | index = this.indexes[id]
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244 | if (index >= child) {
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245 | this.indexes[id] = index - 1
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246 | }
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247 | }
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248 |
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249 | this.markDirty()
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250 |
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251 | return this
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252 | }
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253 |
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254 | removeAll () {
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255 | for (let node of this.proxyOf.nodes) node.parent = undefined
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256 | this.proxyOf.nodes = []
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257 |
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258 | this.markDirty()
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259 |
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260 | return this
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261 | }
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262 |
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263 | replaceValues (pattern, opts, callback) {
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264 | if (!callback) {
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265 | callback = opts
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266 | opts = {}
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267 | }
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268 |
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269 | this.walkDecls(decl => {
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270 | if (opts.props && !opts.props.includes(decl.prop)) return
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271 | if (opts.fast && !decl.value.includes(opts.fast)) return
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272 |
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273 | decl.value = decl.value.replace(pattern, callback)
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274 | })
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275 |
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276 | this.markDirty()
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277 |
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278 | return this
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279 | }
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280 |
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281 | every (condition) {
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282 | return this.nodes.every(condition)
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283 | }
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284 |
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285 | some (condition) {
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286 | return this.nodes.some(condition)
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287 | }
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288 |
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289 | index (child) {
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290 | if (typeof child === 'number') return child
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291 | if (child.proxyOf) child = child.proxyOf
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292 | return this.proxyOf.nodes.indexOf(child)
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293 | }
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294 |
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295 | get first () {
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296 | if (!this.proxyOf.nodes) return undefined
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297 | return this.proxyOf.nodes[0]
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298 | }
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299 |
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300 | get last () {
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301 | if (!this.proxyOf.nodes) return undefined
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302 | return this.proxyOf.nodes[this.proxyOf.nodes.length - 1]
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303 | }
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304 |
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305 | normalize (nodes, sample) {
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306 | if (typeof nodes === 'string') {
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307 | nodes = cleanSource(parse(nodes).nodes)
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308 | } else if (Array.isArray(nodes)) {
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309 | nodes = nodes.slice(0)
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310 | for (let i of nodes) {
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311 | if (i.parent) i.parent.removeChild(i, 'ignore')
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312 | }
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313 | } else if (nodes.type === 'root') {
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314 | nodes = nodes.nodes.slice(0)
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315 | for (let i of nodes) {
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316 | if (i.parent) i.parent.removeChild(i, 'ignore')
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317 | }
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318 | } else if (nodes.type) {
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319 | nodes = [nodes]
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320 | } else if (nodes.prop) {
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321 | if (typeof nodes.value === 'undefined') {
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322 | throw new Error('Value field is missed in node creation')
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323 | } else if (typeof nodes.value !== 'string') {
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324 | nodes.value = String(nodes.value)
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325 | }
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326 | nodes = [new Declaration(nodes)]
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327 | } else if (nodes.selector) {
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328 | nodes = [new Rule(nodes)]
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329 | } else if (nodes.name) {
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330 | nodes = [new AtRule(nodes)]
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331 | } else if (nodes.text) {
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332 | nodes = [new Comment(nodes)]
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333 | } else {
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334 | throw new Error('Unknown node type in node creation')
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335 | }
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336 |
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337 | let processed = nodes.map(i => {
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338 |
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339 | if (typeof i.markDirty !== 'function') rebuild(i)
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340 | if (i.parent) i.parent.removeChild(i)
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341 | if (i[isClean]) markDirtyUp(i)
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342 | if (typeof i.raws.before === 'undefined') {
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343 | if (sample && typeof sample.raws.before !== 'undefined') {
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344 | i.raws.before = sample.raws.before.replace(/\S/g, '')
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345 | }
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346 | }
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347 | i.parent = this
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348 | return i
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349 | })
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350 |
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351 | return processed
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352 | }
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353 |
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354 | getProxyProcessor () {
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355 | return {
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356 | set (node, prop, value) {
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357 | if (node[prop] === value) return true
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358 | node[prop] = value
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359 | if (prop === 'name' || prop === 'params' || prop === 'selector') {
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360 | node.markDirty()
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361 | }
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362 | return true
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363 | },
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364 |
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365 | get (node, prop) {
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366 | if (prop === 'proxyOf') {
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367 | return node
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368 | } else if (!node[prop]) {
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369 | return node[prop]
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370 | } else if (
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371 | prop === 'each' ||
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372 | (typeof prop === 'string' && prop.startsWith('walk'))
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373 | ) {
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374 | return (...args) => {
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375 | return node[prop](
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376 | ...args.map(i => {
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377 | if (typeof i === 'function') {
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378 | return (child, index) => i(child.toProxy(), index)
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379 | } else {
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380 | return i
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381 | }
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382 | })
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383 | )
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384 | }
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385 | } else if (prop === 'every' || prop === 'some') {
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386 | return cb => {
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387 | return node[prop]((child, ...other) =>
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388 | cb(child.toProxy(), ...other)
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389 | )
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390 | }
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391 | } else if (prop === 'root') {
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392 | return () => node.root().toProxy()
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393 | } else if (prop === 'nodes') {
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394 | return node.nodes.map(i => i.toProxy())
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395 | } else if (prop === 'first' || prop === 'last') {
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396 | return node[prop].toProxy()
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397 | } else {
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398 | return node[prop]
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399 | }
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400 | }
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401 | }
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402 | }
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403 |
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404 | getIterator () {
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405 | if (!this.lastEach) this.lastEach = 0
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406 | if (!this.indexes) this.indexes = {}
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407 |
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408 | this.lastEach += 1
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409 | let iterator = this.lastEach
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410 | this.indexes[iterator] = 0
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411 |
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412 | return iterator
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413 | }
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414 | }
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415 |
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416 | Container.registerParse = dependant => {
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417 | parse = dependant
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418 | }
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419 |
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420 | Container.registerRule = dependant => {
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421 | Rule = dependant
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422 | }
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423 |
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424 | Container.registerAtRule = dependant => {
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425 | AtRule = dependant
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426 | }
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427 |
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428 | module.exports = Container
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429 | Container.default = Container
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