| 1 | 'use strict'
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| 2 |
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| 3 | let { isClean, my } = require('./symbols')
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| 4 | let Declaration = require('./declaration')
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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 | class Container extends Node {
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| 28 | push(child) {
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| 29 | child.parent = this
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| 30 | this.proxyOf.nodes.push(child)
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| 31 | return this
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| 32 | }
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| 33 |
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| 34 | each(callback) {
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| 35 | if (!this.proxyOf.nodes) return undefined
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| 36 | let iterator = this.getIterator()
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| 37 |
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| 38 | let index, result
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| 39 | while (this.indexes[iterator] < this.proxyOf.nodes.length) {
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| 40 | index = this.indexes[iterator]
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| 41 | result = callback(this.proxyOf.nodes[index], index)
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| 42 | if (result === false) break
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| 43 |
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| 44 | this.indexes[iterator] += 1
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| 45 | }
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| 46 |
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| 47 | delete this.indexes[iterator]
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| 48 | return result
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| 49 | }
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| 50 |
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| 51 | walk(callback) {
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| 52 | return this.each((child, i) => {
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| 53 | let result
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| 54 | try {
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| 55 | result = callback(child, i)
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| 56 | } catch (e) {
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| 57 | throw child.addToError(e)
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| 58 | }
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| 59 | if (result !== false && child.walk) {
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| 60 | result = child.walk(callback)
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| 61 | }
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| 62 |
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| 63 | return result
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| 64 | })
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| 65 | }
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| 66 |
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| 67 | walkDecls(prop, callback) {
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| 68 | if (!callback) {
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| 69 | callback = prop
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| 70 | return this.walk((child, i) => {
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| 71 | if (child.type === 'decl') {
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| 72 | return callback(child, i)
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| 73 | }
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| 74 | })
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| 75 | }
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| 76 | if (prop instanceof RegExp) {
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| 77 | return this.walk((child, i) => {
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| 78 | if (child.type === 'decl' && prop.test(child.prop)) {
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| 79 | return callback(child, i)
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| 80 | }
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| 81 | })
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| 82 | }
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| 83 | return this.walk((child, i) => {
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| 84 | if (child.type === 'decl' && child.prop === prop) {
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| 85 | return callback(child, i)
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| 86 | }
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| 87 | })
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| 88 | }
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| 89 |
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| 90 | walkRules(selector, callback) {
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| 91 | if (!callback) {
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| 92 | callback = selector
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| 93 |
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| 94 | return this.walk((child, i) => {
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| 95 | if (child.type === 'rule') {
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| 96 | return callback(child, i)
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| 97 | }
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| 98 | })
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| 99 | }
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| 100 | if (selector instanceof RegExp) {
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| 101 | return this.walk((child, i) => {
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| 102 | if (child.type === 'rule' && selector.test(child.selector)) {
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| 103 | return callback(child, i)
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| 104 | }
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| 105 | })
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| 106 | }
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| 107 | return this.walk((child, i) => {
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| 108 | if (child.type === 'rule' && child.selector === selector) {
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| 109 | return callback(child, i)
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| 110 | }
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| 111 | })
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| 112 | }
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| 113 |
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| 114 | walkAtRules(name, callback) {
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| 115 | if (!callback) {
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| 116 | callback = name
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| 117 | return this.walk((child, i) => {
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| 118 | if (child.type === 'atrule') {
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| 119 | return callback(child, i)
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| 120 | }
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| 121 | })
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| 122 | }
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| 123 | if (name instanceof RegExp) {
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| 124 | return this.walk((child, i) => {
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| 125 | if (child.type === 'atrule' && name.test(child.name)) {
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| 126 | return callback(child, i)
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| 127 | }
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| 128 | })
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| 129 | }
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| 130 | return this.walk((child, i) => {
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| 131 | if (child.type === 'atrule' && child.name === name) {
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| 132 | return callback(child, i)
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| 133 | }
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| 134 | })
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| 135 | }
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| 136 |
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| 137 | walkComments(callback) {
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| 138 | return this.walk((child, i) => {
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| 139 | if (child.type === 'comment') {
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| 140 | return callback(child, i)
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| 141 | }
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| 142 | })
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| 143 | }
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| 144 |
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| 145 | append(...children) {
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| 146 | for (let child of children) {
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| 147 | let nodes = this.normalize(child, this.last)
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| 148 | for (let node of nodes) this.proxyOf.nodes.push(node)
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| 149 | }
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| 150 |
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| 151 | this.markDirty()
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| 152 |
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| 153 | return this
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| 154 | }
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| 155 |
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| 156 | prepend(...children) {
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| 157 | children = children.reverse()
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| 158 | for (let child of children) {
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| 159 | let nodes = this.normalize(child, this.first, 'prepend').reverse()
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| 160 | for (let node of nodes) this.proxyOf.nodes.unshift(node)
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| 161 | for (let id in this.indexes) {
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| 162 | this.indexes[id] = this.indexes[id] + nodes.length
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| 163 | }
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| 164 | }
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| 165 |
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| 166 | this.markDirty()
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| 167 |
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| 168 | return this
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| 169 | }
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| 170 |
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| 171 | cleanRaws(keepBetween) {
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| 172 | super.cleanRaws(keepBetween)
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| 173 | if (this.nodes) {
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| 174 | for (let node of this.nodes) node.cleanRaws(keepBetween)
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| 175 | }
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| 176 | }
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| 177 |
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| 178 | insertBefore(exist, add) {
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| 179 | exist = this.index(exist)
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| 180 |
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| 181 | let type = exist === 0 ? 'prepend' : false
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| 182 | let nodes = this.normalize(add, this.proxyOf.nodes[exist], type).reverse()
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| 183 | for (let node of nodes) this.proxyOf.nodes.splice(exist, 0, node)
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| 184 |
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| 185 | let index
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| 186 | for (let id in this.indexes) {
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| 187 | index = this.indexes[id]
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| 188 | if (exist <= index) {
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| 189 | this.indexes[id] = index + nodes.length
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| 190 | }
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| 191 | }
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| 192 |
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| 193 | this.markDirty()
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| 194 |
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| 195 | return this
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| 196 | }
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| 197 |
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| 198 | insertAfter(exist, add) {
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| 199 | exist = this.index(exist)
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| 200 |
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| 201 | let nodes = this.normalize(add, this.proxyOf.nodes[exist]).reverse()
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| 202 | for (let node of nodes) this.proxyOf.nodes.splice(exist + 1, 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 | removeChild(child) {
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| 218 | child = this.index(child)
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| 219 | this.proxyOf.nodes[child].parent = undefined
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| 220 | this.proxyOf.nodes.splice(child, 1)
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| 221 |
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| 222 | let index
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| 223 | for (let id in this.indexes) {
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| 224 | index = this.indexes[id]
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| 225 | if (index >= child) {
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| 226 | this.indexes[id] = index - 1
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| 227 | }
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| 228 | }
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| 229 |
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| 230 | this.markDirty()
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| 231 |
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| 232 | return this
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| 233 | }
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| 234 |
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| 235 | removeAll() {
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| 236 | for (let node of this.proxyOf.nodes) node.parent = undefined
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| 237 | this.proxyOf.nodes = []
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| 238 |
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| 239 | this.markDirty()
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| 240 |
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| 241 | return this
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| 242 | }
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| 243 |
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| 244 | replaceValues(pattern, opts, callback) {
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| 245 | if (!callback) {
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| 246 | callback = opts
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| 247 | opts = {}
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| 248 | }
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| 249 |
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| 250 | this.walkDecls(decl => {
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| 251 | if (opts.props && !opts.props.includes(decl.prop)) return
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| 252 | if (opts.fast && !decl.value.includes(opts.fast)) return
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| 253 |
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| 254 | decl.value = decl.value.replace(pattern, callback)
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| 255 | })
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| 256 |
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| 257 | this.markDirty()
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| 258 |
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| 259 | return this
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| 260 | }
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| 261 |
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| 262 | every(condition) {
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| 263 | return this.nodes.every(condition)
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| 264 | }
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| 265 |
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| 266 | some(condition) {
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| 267 | return this.nodes.some(condition)
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| 268 | }
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| 269 |
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| 270 | index(child) {
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| 271 | if (typeof child === 'number') return child
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| 272 | if (child.proxyOf) child = child.proxyOf
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| 273 | return this.proxyOf.nodes.indexOf(child)
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| 274 | }
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| 275 |
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| 276 | get first() {
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| 277 | if (!this.proxyOf.nodes) return undefined
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| 278 | return this.proxyOf.nodes[0]
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| 279 | }
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| 280 |
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| 281 | get last() {
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| 282 | if (!this.proxyOf.nodes) return undefined
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| 283 | return this.proxyOf.nodes[this.proxyOf.nodes.length - 1]
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| 284 | }
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| 285 |
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| 286 | normalize(nodes, sample) {
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| 287 | if (typeof nodes === 'string') {
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| 288 | nodes = cleanSource(parse(nodes).nodes)
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| 289 | } else if (Array.isArray(nodes)) {
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| 290 | nodes = nodes.slice(0)
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| 291 | for (let i of nodes) {
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| 292 | if (i.parent) i.parent.removeChild(i, 'ignore')
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| 293 | }
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| 294 | } else if (nodes.type === 'root' && this.type !== 'document') {
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| 295 | nodes = nodes.nodes.slice(0)
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| 296 | for (let i of nodes) {
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| 297 | if (i.parent) i.parent.removeChild(i, 'ignore')
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| 298 | }
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| 299 | } else if (nodes.type) {
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| 300 | nodes = [nodes]
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| 301 | } else if (nodes.prop) {
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| 302 | if (typeof nodes.value === 'undefined') {
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| 303 | throw new Error('Value field is missed in node creation')
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| 304 | } else if (typeof nodes.value !== 'string') {
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| 305 | nodes.value = String(nodes.value)
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| 306 | }
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| 307 | nodes = [new Declaration(nodes)]
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| 308 | } else if (nodes.selector) {
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| 309 | nodes = [new Rule(nodes)]
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| 310 | } else if (nodes.name) {
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| 311 | nodes = [new AtRule(nodes)]
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| 312 | } else if (nodes.text) {
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| 313 | nodes = [new Comment(nodes)]
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| 314 | } else {
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| 315 | throw new Error('Unknown node type in node creation')
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| 316 | }
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| 317 |
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| 318 | let processed = nodes.map(i => {
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| 319 | // istanbul ignore next
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| 320 | if (!i[my]) Container.rebuild(i)
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| 321 | i = i.proxyOf
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| 322 | if (i.parent) i.parent.removeChild(i)
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| 323 | if (i[isClean]) markDirtyUp(i)
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| 324 | if (typeof i.raws.before === 'undefined') {
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| 325 | if (sample && typeof sample.raws.before !== 'undefined') {
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| 326 | i.raws.before = sample.raws.before.replace(/\S/g, '')
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| 327 | }
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| 328 | }
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| 329 | i.parent = this
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| 330 | return i
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| 331 | })
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| 332 |
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| 333 | return processed
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| 334 | }
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| 335 |
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| 336 | getProxyProcessor() {
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| 337 | return {
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| 338 | set(node, prop, value) {
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| 339 | if (node[prop] === value) return true
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| 340 | node[prop] = value
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| 341 | if (prop === 'name' || prop === 'params' || prop === 'selector') {
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| 342 | node.markDirty()
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| 343 | }
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| 344 | return true
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| 345 | },
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| 346 |
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| 347 | get(node, prop) {
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| 348 | if (prop === 'proxyOf') {
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| 349 | return node
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| 350 | } else if (!node[prop]) {
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| 351 | return node[prop]
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| 352 | } else if (
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| 353 | prop === 'each' ||
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| 354 | (typeof prop === 'string' && prop.startsWith('walk'))
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| 355 | ) {
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| 356 | return (...args) => {
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| 357 | return node[prop](
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| 358 | ...args.map(i => {
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| 359 | if (typeof i === 'function') {
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| 360 | return (child, index) => i(child.toProxy(), index)
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| 361 | } else {
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| 362 | return i
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| 363 | }
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| 364 | })
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| 365 | )
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| 366 | }
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| 367 | } else if (prop === 'every' || prop === 'some') {
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| 368 | return cb => {
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| 369 | return node[prop]((child, ...other) =>
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| 370 | cb(child.toProxy(), ...other)
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| 371 | )
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| 372 | }
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| 373 | } else if (prop === 'root') {
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| 374 | return () => node.root().toProxy()
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| 375 | } else if (prop === 'nodes') {
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| 376 | return node.nodes.map(i => i.toProxy())
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| 377 | } else if (prop === 'first' || prop === 'last') {
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| 378 | return node[prop].toProxy()
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| 379 | } else {
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| 380 | return node[prop]
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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 |
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| 386 | getIterator() {
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| 387 | if (!this.lastEach) this.lastEach = 0
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| 388 | if (!this.indexes) this.indexes = {}
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| 389 |
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| 390 | this.lastEach += 1
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| 391 | let iterator = this.lastEach
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| 392 | this.indexes[iterator] = 0
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| 393 |
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| 394 | return iterator
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| 395 | }
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| 396 | }
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| 397 |
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| 398 | Container.registerParse = dependant => {
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| 399 | parse = dependant
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| 400 | }
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| 401 |
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| 402 | Container.registerRule = dependant => {
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| 403 | Rule = dependant
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| 404 | }
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| 405 |
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| 406 | Container.registerAtRule = dependant => {
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| 407 | AtRule = dependant
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| 408 | }
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| 409 |
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| 410 | module.exports = Container
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| 411 | Container.default = Container
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| 412 |
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| 413 | // istanbul ignore next
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| 414 | Container.rebuild = node => {
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| 415 | if (node.type === 'atrule') {
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| 416 | Object.setPrototypeOf(node, AtRule.prototype)
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| 417 | } else if (node.type === 'rule') {
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| 418 | Object.setPrototypeOf(node, Rule.prototype)
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| 419 | } else if (node.type === 'decl') {
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| 420 | Object.setPrototypeOf(node, Declaration.prototype)
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| 421 | } else if (node.type === 'comment') {
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| 422 | Object.setPrototypeOf(node, Comment.prototype)
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| 423 | }
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| 424 |
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| 425 | node[my] = true
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| 426 |
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| 427 | if (node.nodes) {
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| 428 | node.nodes.forEach(child => {
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| 429 | Container.rebuild(child)
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| 430 | })
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| 431 | }
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| 432 | }
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