516 lines
17 KiB
JavaScript
516 lines
17 KiB
JavaScript
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'use strict'
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var config = require('./config.js')
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var 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': function (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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var 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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var 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': function (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': function (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': function (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': function (node, metadata, context) {
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var nodes = context.postcss.parse(metadata.param, { from: node.source.input.from })
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node.parent.insertBefore(node, nodes)
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return true
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},
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'end': function (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': function (node, metadata, context) {
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var 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': function (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': function (node, metadata, context) {
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this.stack.push(util.extend({}, context.config))
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var 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('Invlaid 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': function (node, metadata, context) {
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var 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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'expr': {
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'fn': /function([^\(]*)\(([^\(\)]*?)\)[^\{]*\{([^]*)\}/ig,
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'rx': /\/([^\/]*)\/(.*)/ig
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},
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'stack': [],
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'begin': function (node, metadata, context) {
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this.stack.push(util.extend({}, context.config))
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var 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('Invlaid 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': function (node, metadata, context) {
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var 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': function (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': function (decl, expr, context) {
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var prefix = ''
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decl.raws.value.raw.replace(expr, function (m, v) {
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prefix += v
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})
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decl.value = decl.raws.value.raw = prefix + decl.raws.value.raw
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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': function (decl, expr, context) {
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decl.value = decl.raws.value.raw = decl.raws.value.raw.replace(expr, function (match, value) {
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return match + 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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'name': 'insert',
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'action': function (decl, expr, context) {
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decl.value = decl.raws.value.raw = decl.raws.value.raw.replace(expr, function (match, value) {
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return value + match
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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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'name': '',
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'action': function (decl, expr, context) {
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decl.raws.value.raw.replace(expr, function (match, value) {
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decl.value = decl.raws.value.raw = value + match
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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': function (prop, value) {
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return { 'prop': prop, 'value': 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': function (prop, value, context) {
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return { 'prop': 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': function (prop, value, context) {
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return { 'prop': prop.replace(this.expr, function () { return 'right' }), 'value': 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': function (prop, value, context) {
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return { 'prop': prop.replace(this.expr, function () { return 'left' }), 'value': 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': function (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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var state = context.util.guardFunctions(value)
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var 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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var i = 0
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state.value = state.value.replace(this.cache.match, function () {
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return result[(4 - i++) % 4]
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})
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}
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return { 'prop': 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': function (value) {
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var parts = value.match(this.cache.match)
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var 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, function () {
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return parts[i--]
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})
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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, function (m) {
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return m + parts[1] + ' '
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})
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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, function () {
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return parts[(5 - i++) % 4]
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})
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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': function (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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var state = context.util.guardFunctions(value)
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state.value = state.value.replace(this.cache.slash, function (m) {
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return this.flip(m)
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}.bind(this))
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return { 'prop': 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': function (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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var colorSafe = context.util.guardHexColors(value)
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var funcSafe = context.util.guardFunctions(colorSafe.value)
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funcSafe.value = funcSafe.value.replace(this.cache.replace, function (m) { return context.util.negate(m) })
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colorSafe.value = context.util.unguardFunctions(funcSafe)
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return { 'prop': 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': function (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': function (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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var state = context.util.guardFunctions(value)
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var 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, function () { return 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': prop, 'value': 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': function (value, process, context) {
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var i = 0
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return value.replace(this.cache.unit, function (num) {
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return process(++i, num)
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})
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},
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'flipMatrix': function (value, context) {
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return this.flip(value, function (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': function (value, context) {
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return this.flip(value, function (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': function (value, context) {
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return this.flip(value, function (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': function (prop, value, context) {
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if (this.cache === null) {
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this.cache = {
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'negatable': /((translate)(x|3d)?|rotate(z|y)?)$/ig,
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'unit': context.util.regex(['calc', 'number'], 'g'),
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'matrix': /matrix$/i,
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'matrix3D': /matrix3d$/i,
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'skewXY': /skew(x|y)?$/i,
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'rotate3D': /rotate3d$/i
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}
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}
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var state = context.util.guardFunctions(value)
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return {
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'prop': prop,
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'value': context.util.unguardFunctions(state, function (v, n) {
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if (n.length) {
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|
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if (n.match(this.cache.matrix3D)) {
|
||
|
|
v = this.flipMatrix3D(v, context)
|
||
|
|
} else if (n.match(this.cache.matrix)) {
|
||
|
|
v = this.flipMatrix(v, context)
|
||
|
|
} else if (n.match(this.cache.rotate3D)) {
|
||
|
|
v = this.flipRotate3D(v, context)
|
||
|
|
} else if (n.match(this.cache.skewXY)) {
|
||
|
|
v = context.util.negateAll(v)
|
||
|
|
} else if (n.match(this.cache.negatable)) {
|
||
|
|
v = context.util.negate(v)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return v
|
||
|
|
}.bind(this))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
{
|
||
|
|
'name': 'transition',
|
||
|
|
'expr': /transition(-property)?$/i,
|
||
|
|
'action': function (prop, value, context) {
|
||
|
|
return { 'prop': prop, 'value': context.util.swapLeftRight(value) }
|
||
|
|
}
|
||
|
|
},
|
||
|
|
{
|
||
|
|
'name': 'background',
|
||
|
|
'expr': /background(-position(-x)?|-image)?$/i,
|
||
|
|
'cache': null,
|
||
|
|
'flip': function (value, context) {
|
||
|
|
var state = util.saveTokens(value, true)
|
||
|
|
var parts = state.value.match(this.cache.match)
|
||
|
|
|
||
|
|
if (parts && parts.length > 0) {
|
||
|
|
var keywords = (state.value.match(this.cache.position) || '').length
|
||
|
|
if (/* edge offsets */ parts.length >= 3 || /* keywords only */ keywords === 2) {
|
||
|
|
state.value = util.swapLeftRight(state.value)
|
||
|
|
} else {
|
||
|
|
parts[0] = parts[0] === '0'
|
||
|
|
? '100%'
|
||
|
|
: (parts[0].match(this.cache.percent)
|
||
|
|
? context.util.complement(parts[0])
|
||
|
|
: (parts[0].match(this.cache.length)
|
||
|
|
? context.util.flipLength(parts[0])
|
||
|
|
: context.util.swapLeftRight(parts[0])))
|
||
|
|
state.value = state.value.replace(this.cache.match, function () { return parts.shift() })
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return util.restoreTokens(state)
|
||
|
|
},
|
||
|
|
'update': function (context, value, name) {
|
||
|
|
if (name.match(this.cache.gradient)) {
|
||
|
|
value = context.util.swapLeftRight(value)
|
||
|
|
if (value.match(this.cache.angle)) {
|
||
|
|
value = context.util.negate(value)
|
||
|
|
}
|
||
|
|
} else if (context.config.processUrls === true || context.config.processUrls.decl === true && name.match(this.cache.url)) {
|
||
|
|
value = context.util.applyStringMap(value, true)
|
||
|
|
}
|
||
|
|
return value
|
||
|
|
},
|
||
|
|
'action': function (prop, value, context) {
|
||
|
|
if (this.cache === null) {
|
||
|
|
this.cache = {
|
||
|
|
'match': context.util.regex(['position', 'percent', 'length', 'calc'], 'ig'),
|
||
|
|
'percent': context.util.regex(['calc', 'percent'], 'i'),
|
||
|
|
'position': context.util.regex(['position'], 'g'),
|
||
|
|
'length': context.util.regex(['length'], 'gi'),
|
||
|
|
'gradient': /gradient$/i,
|
||
|
|
'angle': /\d+(deg|g?rad|turn)/i,
|
||
|
|
'url': /^url/i
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var colorSafe = context.util.guardHexColors(value)
|
||
|
|
var funcSafe = context.util.guardFunctions(colorSafe.value)
|
||
|
|
var parts = funcSafe.value.split(',')
|
||
|
|
var lprop = prop.toLowerCase()
|
||
|
|
if (lprop !== 'background-image') {
|
||
|
|
for (var 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': prop,
|
||
|
|
'value': context.util.unguardHexColors(colorSafe)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
{
|
||
|
|
'name': 'keyword',
|
||
|
|
'expr': /float|clear|text-align/i,
|
||
|
|
'action': function (prop, value, context) {
|
||
|
|
return { 'prop': prop, 'value': context.util.swapLeftRight(value) }
|
||
|
|
}
|
||
|
|
},
|
||
|
|
{
|
||
|
|
'name': 'cursor',
|
||
|
|
'expr': /cursor/i,
|
||
|
|
'cache': null,
|
||
|
|
'update': function (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': function (value) {
|
||
|
|
return value.replace(this.cache.replace, function (s, m) {
|
||
|
|
return s.replace(m, m.replace(this.cache.e, '*').replace(this.cache.w, 'e').replace(this.cache.star, 'w'))
|
||
|
|
}.bind(this))
|
||
|
|
},
|
||
|
|
'action': function (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
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var state = context.util.guardFunctions(value)
|
||
|
|
var parts = state.value.split(',')
|
||
|
|
for (var x = 0; x < parts.length; x++) {
|
||
|
|
parts[x] = this.flip(parts[x])
|
||
|
|
}
|
||
|
|
state.value = parts.join(',')
|
||
|
|
return {
|
||
|
|
'prop': prop,
|
||
|
|
'value': context.util.unguardFunctions(state, this.update.bind(this, context))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
]
|
||
|
|
}
|