forked from lix-project/lix-website
544 lines
18 KiB
JavaScript
544 lines
18 KiB
JavaScript
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'use strict'
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const config = require('./config.js')
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const util = require('./util.js')
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module.exports = {
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name: 'rtlcss',
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priority: 100,
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directives: {
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control: {
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ignore: {
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expect: { atrule: true, comment: true, decl: true, rule: true },
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endNode: null,
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begin (node, metadata, context) {
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// find the ending node in case of self closing directive
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if (!this.endNode && metadata.begin && metadata.end) {
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let n = node
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while (n && n.nodes) {
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n = n.nodes[n.nodes.length - 1]
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}
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this.endNode = n
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}
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let prevent = true
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if (node.type === 'comment' && node.text.match(/^\s*!?\s*rtl:end:ignore/)) {
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prevent = false
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}
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return prevent
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},
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end (node, metadata, context) {
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// end if:
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// 1. block directive and the node is comment
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// 2. self closing directive and node is endNode
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if ((metadata.begin !== metadata.end && node.type === 'comment') || (metadata.begin && metadata.end && node === this.endNode)) {
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// clear ending node
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this.endNode = null
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return true
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}
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return false
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}
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},
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rename: {
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expect: { rule: true },
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begin (node, metadata, context) {
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node.selector = context.util.applyStringMap(node.selector, false)
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return false
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},
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end (node, context) {
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return true
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}
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},
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raw: {
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expect: { self: true },
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begin (node, metadata, context) {
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const nodes = context.postcss.parse(metadata.param, { from: node.source.input.from })
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nodes.walk((node) => {
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node[context.symbol] = true
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})
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node.parent.insertBefore(node, nodes)
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return true
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},
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end (node, context) {
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return true
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}
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},
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remove: {
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expect: { atrule: true, rule: true, decl: true },
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begin (node, metadata, context) {
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let prevent = false
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switch (node.type) {
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case 'atrule':
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case 'rule':
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case 'decl':
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prevent = true
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node.remove()
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}
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return prevent
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},
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end (node, metadata, context) {
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return true
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}
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},
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options: {
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expect: { self: true },
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stack: [],
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begin (node, metadata, context) {
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this.stack.push(util.extend({}, context.config))
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let options
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try {
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options = JSON.parse(metadata.param)
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} catch (e) {
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throw node.error('Invalid options object', { details: e })
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}
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context.config = config.configure(options, context.config.plugins)
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context.util = util.configure(context.config)
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return true
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},
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end (node, metadata, context) {
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const config = this.stack.pop()
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if (config && !metadata.begin) {
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context.config = config
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context.util = util.configure(context.config)
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}
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return true
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}
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},
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config: {
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expect: { self: true },
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stack: [],
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begin (node, metadata, context) {
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this.stack.push(util.extend({}, context.config))
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let configuration
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try {
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configuration = eval(`(${metadata.param})`) // eslint-disable-line no-eval
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} catch (e) {
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throw node.error('Invalid config object', { details: e })
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}
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context.config = config.configure(configuration.options, configuration.plugins)
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context.util = util.configure(context.config)
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return true
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},
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end (node, metadata, context) {
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const config = this.stack.pop()
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if (config && !metadata.begin) {
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context.config = config
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context.util = util.configure(context.config)
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}
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return true
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}
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}
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},
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value: [
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{
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name: 'ignore',
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action (decl, expr, context) {
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return true
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}
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},
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{
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name: 'prepend',
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action (decl, expr, context) {
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let prefix = ''
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const hasRawValue = decl.raws.value && decl.raws.value.raw
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const raw = `${decl.raws.between.substr(1).trim()}${hasRawValue ? decl.raws.value.raw : decl.value}${decl.important ? decl.raws.important.substr(9).trim() : ''}`
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raw.replace(expr, (m, v) => {
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prefix += v
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})
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decl.value = hasRawValue
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? (decl.raws.value.raw = prefix + decl.raws.value.raw)
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: prefix + decl.value
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return true
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}
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},
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{
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name: 'append',
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action (decl, expr, context) {
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let suffix = ''
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const hasRawValue = decl.raws.value && decl.raws.value.raw
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const raw = `${decl.raws.between.substr(1).trim()}${hasRawValue ? decl.raws.value.raw : decl.value}${decl.important ? decl.raws.important.substr(9).trim() : ''}`
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raw.replace(expr, (m, v) => {
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suffix = v + suffix
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})
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decl.value = hasRawValue ? (decl.raws.value.raw += suffix) : decl.value + suffix
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return true
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}
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},
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{
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name: 'insert',
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action (decl, expr, context) {
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const hasRawValue = decl.raws.value && decl.raws.value.raw
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const raw = `${decl.raws.between.substr(1).trim()}${hasRawValue ? decl.raws.value.raw : decl.value}${decl.important ? decl.raws.important.substr(9).trim() : ''}`
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const result = raw.replace(expr, (match, value) => hasRawValue ? value + match : value)
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decl.value = hasRawValue ? (decl.raws.value.raw = result) : result
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return true
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}
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},
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{
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name: '',
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action (decl, expr, context) {
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const hasRawValue = decl.raws.value && decl.raws.value.raw
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const raw = `${decl.raws.between.substr(1).trim()}${hasRawValue ? decl.raws.value.raw : ''}${decl.important ? decl.raws.important.substr(9).trim() : ''}`
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raw.replace(expr, (match, value) => {
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decl.value = hasRawValue
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? (decl.raws.value.raw = value + match)
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: value
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})
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return true
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}
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}
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]
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},
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processors: [
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{
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name: 'variable',
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expr: /^--/im,
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action (prop, value) {
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return { prop, value }
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}
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},
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{
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name: 'direction',
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expr: /direction/im,
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action (prop, value, context) {
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return { prop, value: context.util.swapLtrRtl(value) }
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}
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},
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{
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name: 'left',
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expr: /left/im,
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action (prop, value, context) {
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return { prop: prop.replace(this.expr, () => 'right'), value }
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}
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},
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{
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name: 'right',
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expr: /right/im,
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action (prop, value, context) {
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return { prop: prop.replace(this.expr, () => 'left'), value }
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}
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},
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{
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name: 'four-value syntax',
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expr: /^(margin|padding|border-(color|style|width))$/ig,
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cache: null,
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action (prop, value, context) {
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if (this.cache === null) {
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this.cache = {
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match: /[^\s\uFFFD]+/g
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}
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}
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const state = context.util.guardFunctions(value)
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const result = state.value.match(this.cache.match)
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if (result && result.length === 4 && (state.store.length > 0 || result[1] !== result[3])) {
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let i = 0
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state.value = state.value.replace(this.cache.match, () => result[(4 - i++) % 4])
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}
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return { prop, value: context.util.unguardFunctions(state) }
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}
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},
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{
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name: 'border radius',
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expr: /border-radius/ig,
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cache: null,
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flip (value) {
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const parts = value.match(this.cache.match)
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let i
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if (parts) {
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switch (parts.length) {
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case 2:
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i = 1
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if (parts[0] !== parts[1]) {
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value = value.replace(this.cache.match, () => parts[i--])
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}
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break
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case 3:
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// preserve leading whitespace.
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value = value.replace(this.cache.white, (m) => `${m + parts[1]} `)
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break
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case 4:
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i = 0
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if (parts[0] !== parts[1] || parts[2] !== parts[3]) {
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value = value.replace(this.cache.match, () => parts[(5 - i++) % 4])
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}
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break
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}
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}
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return value
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},
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action (prop, value, context) {
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if (this.cache === null) {
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this.cache = {
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match: /[^\s\uFFFD]+/g,
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slash: /[^/]+/g,
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white: /(^\s*)/
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}
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}
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const state = context.util.guardFunctions(value)
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state.value = state.value.replace(this.cache.slash, (m) => this.flip(m))
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return { prop, value: context.util.unguardFunctions(state) }
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}
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},
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{
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name: 'shadow',
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expr: /shadow/ig,
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cache: null,
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action (prop, value, context) {
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if (this.cache === null) {
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this.cache = {
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replace: /[^,]+/g
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}
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}
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const colorSafe = context.util.guardHexColors(value)
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const funcSafe = context.util.guardFunctions(colorSafe.value)
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funcSafe.value = funcSafe.value.replace(this.cache.replace, (m) => context.util.negate(m))
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colorSafe.value = context.util.unguardFunctions(funcSafe)
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return { prop, value: context.util.unguardHexColors(colorSafe) }
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}
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},
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{
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name: 'transform and perspective origin',
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expr: /(?:transform|perspective)-origin/ig,
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cache: null,
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flip (value, context) {
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if (value === '0') {
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value = '100%'
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} else if (value.match(this.cache.percent)) {
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value = context.util.complement(value)
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} else if (value.match(this.cache.length)) {
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value = context.util.flipLength(value)
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}
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return value
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},
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action (prop, value, context) {
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if (this.cache === null) {
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this.cache = {
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match: context.util.regex(['calc', 'percent', 'length'], 'g'),
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percent: context.util.regex(['calc', 'percent'], 'i'),
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length: context.util.regex(['length'], 'gi'),
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xKeyword: /(left|right)/i
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}
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}
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if (value.match(this.cache.xKeyword)) {
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value = context.util.swapLeftRight(value)
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} else {
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const state = context.util.guardFunctions(value)
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const parts = state.value.match(this.cache.match)
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if (parts && parts.length > 0) {
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parts[0] = this.flip(parts[0], context)
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state.value = state.value.replace(this.cache.match, () => parts.shift())
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value = context.util.unguardFunctions(state)
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}
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}
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return { prop, value }
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}
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},
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{
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name: 'transform',
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expr: /^(?!text-).*?transform$/ig,
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cache: null,
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flip (value, process, context) {
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let i = 0
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return value.replace(this.cache.unit, (num) => process(++i, num))
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},
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flipMatrix (value, context) {
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return this.flip(value, (i, num) => {
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if (i === 2 || i === 3 || i === 5) {
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return context.util.negate(num)
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}
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return num
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}, context)
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},
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flipMatrix3D (value, context) {
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return this.flip(value, (i, num) => {
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if (i === 2 || i === 4 || i === 5 || i === 13) {
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return context.util.negate(num)
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}
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return num
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}, context)
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},
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flipRotate3D (value, context) {
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return this.flip(value, (i, num) => {
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if (i === 1 || i === 4) {
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return context.util.negate(num)
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}
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return num
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}, context)
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},
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action (prop, value, context) {
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if (this.cache === null) {
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|
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this.cache = {
|
||
|
|
negatable: /((translate)(x|3d)?|rotate(z|y)?)$/ig,
|
||
|
|
unit: context.util.regex(['calc', 'number'], 'g'),
|
||
|
|
matrix: /matrix$/i,
|
||
|
|
matrix3D: /matrix3d$/i,
|
||
|
|
skewXY: /skew(x|y)?$/i,
|
||
|
|
rotate3D: /rotate3d$/i
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const state = context.util.guardFunctions(value)
|
||
|
|
return {
|
||
|
|
prop,
|
||
|
|
value: context.util.unguardFunctions(state, (v, n) => {
|
||
|
|
if (n.length) {
|
||
|
|
if (n.match(this.cache.matrix3D)) {
|
||
|
|
v = this.flipMatrix3D(v, context)
|
||
|
|
} else if (n.match(this.cache.matrix)) {
|
||
|
|
v = this.flipMatrix(v, context)
|
||
|
|
} else if (n.match(this.cache.rotate3D)) {
|
||
|
|
v = this.flipRotate3D(v, context)
|
||
|
|
} else if (n.match(this.cache.skewXY)) {
|
||
|
|
v = context.util.negateAll(v)
|
||
|
|
} else if (n.match(this.cache.negatable)) {
|
||
|
|
v = context.util.negate(v)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return v
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: 'transition',
|
||
|
|
expr: /transition(-property)?$/i,
|
||
|
|
action (prop, value, context) {
|
||
|
|
return { prop, value: context.util.swapLeftRight(value) }
|
||
|
|
}
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: 'background',
|
||
|
|
expr: /(background|object)(-position(-x)?|-image)?$/i,
|
||
|
|
cache: null,
|
||
|
|
flip (value, context) {
|
||
|
|
const state = util.saveTokens(value, true)
|
||
|
|
const parts = state.value.match(this.cache.match)
|
||
|
|
|
||
|
|
if (parts && parts.length > 0) {
|
||
|
|
const keywords = (state.value.match(this.cache.position) || '').length
|
||
|
|
if (/* edge offsets */ parts.length >= 3 || /* keywords only */ keywords === 2) {
|
||
|
|
state.value = util.swapLeftRight(state.value)
|
||
|
|
} else {
|
||
|
|
parts[0] = parts[0] === '0'
|
||
|
|
? '100%'
|
||
|
|
: (parts[0].match(this.cache.percent)
|
||
|
|
? context.util.complement(parts[0])
|
||
|
|
: (parts[0].match(this.cache.length)
|
||
|
|
? context.util.flipLength(parts[0])
|
||
|
|
: context.util.swapLeftRight(parts[0])))
|
||
|
|
state.value = state.value.replace(this.cache.match, () => parts.shift())
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return util.restoreTokens(state)
|
||
|
|
},
|
||
|
|
update (context, value, name) {
|
||
|
|
if (name.match(this.cache.gradient)) {
|
||
|
|
value = context.util.swapLeftRight(value)
|
||
|
|
if (value.match(this.cache.angle)) {
|
||
|
|
value = context.util.negate(value)
|
||
|
|
}
|
||
|
|
} else if ((context.config.processUrls === true || context.config.processUrls.decl === true) && name.match(this.cache.url)) {
|
||
|
|
value = context.util.applyStringMap(value, true)
|
||
|
|
}
|
||
|
|
return value
|
||
|
|
},
|
||
|
|
action (prop, value, context) {
|
||
|
|
if (this.cache === null) {
|
||
|
|
this.cache = {
|
||
|
|
match: context.util.regex(['position', 'percent', 'length', 'calc'], 'ig'),
|
||
|
|
percent: context.util.regex(['calc', 'percent'], 'i'),
|
||
|
|
position: context.util.regex(['position'], 'g'),
|
||
|
|
length: context.util.regex(['length'], 'gi'),
|
||
|
|
gradient: /gradient$/i,
|
||
|
|
angle: /\d+(deg|g?rad|turn)/i,
|
||
|
|
url: /^url/i
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const colorSafe = context.util.guardHexColors(value)
|
||
|
|
const funcSafe = context.util.guardFunctions(colorSafe.value)
|
||
|
|
const parts = funcSafe.value.split(',')
|
||
|
|
const lprop = prop.toLowerCase()
|
||
|
|
if (lprop !== 'background-image') {
|
||
|
|
for (let x = 0; x < parts.length; x++) {
|
||
|
|
parts[x] = this.flip(parts[x], context)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
funcSafe.value = parts.join(',')
|
||
|
|
colorSafe.value = context.util.unguardFunctions(funcSafe, this.update.bind(this, context))
|
||
|
|
return {
|
||
|
|
prop,
|
||
|
|
value: context.util.unguardHexColors(colorSafe)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: 'keyword',
|
||
|
|
expr: /float|clear|text-align/i,
|
||
|
|
action (prop, value, context) {
|
||
|
|
return { prop, value: context.util.swapLeftRight(value) }
|
||
|
|
}
|
||
|
|
},
|
||
|
|
{
|
||
|
|
name: 'cursor',
|
||
|
|
expr: /cursor/i,
|
||
|
|
cache: null,
|
||
|
|
update (context, value, name) {
|
||
|
|
if ((context.config.processUrls === true || context.config.processUrls.decl === true) && name.match(this.cache.url)) {
|
||
|
|
value = context.util.applyStringMap(value, true)
|
||
|
|
}
|
||
|
|
return value
|
||
|
|
},
|
||
|
|
flip (value) {
|
||
|
|
return value.replace(this.cache.replace, (s, m) => {
|
||
|
|
return s.replace(m, m.replace(this.cache.e, '*')
|
||
|
|
.replace(this.cache.w, 'e')
|
||
|
|
.replace(this.cache.star, 'w'))
|
||
|
|
})
|
||
|
|
},
|
||
|
|
action (prop, value, context) {
|
||
|
|
if (this.cache === null) {
|
||
|
|
this.cache = {
|
||
|
|
replace: /\b(ne|nw|se|sw|nesw|nwse)-resize/ig,
|
||
|
|
url: /^url/i,
|
||
|
|
e: /e/i,
|
||
|
|
w: /w/i,
|
||
|
|
star: /\*/i
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const state = context.util.guardFunctions(value)
|
||
|
|
state.value = state.value.split(',')
|
||
|
|
.map((part) => this.flip(part))
|
||
|
|
.join(',')
|
||
|
|
|
||
|
|
return {
|
||
|
|
prop,
|
||
|
|
value: context.util.unguardFunctions(state, this.update.bind(this, context))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
]
|
||
|
|
}
|