hugoWebsite/node_modules/autoprefixer/lib/hacks/writing-mode.js

43 lines
1002 B
JavaScript

let Declaration = require('../declaration')
class WritingMode extends Declaration {
insert(decl, prefix, prefixes) {
if (prefix === '-ms-') {
let cloned = this.set(this.clone(decl), prefix)
if (this.needCascade(decl)) {
cloned.raws.before = this.calcBefore(prefixes, decl, prefix)
}
let direction = 'ltr'
decl.parent.nodes.forEach(i => {
if (i.prop === 'direction') {
if (i.value === 'rtl' || i.value === 'ltr') direction = i.value
}
})
cloned.value = WritingMode.msValues[direction][decl.value] || decl.value
return decl.parent.insertBefore(decl, cloned)
}
return super.insert(decl, prefix, prefixes)
}
}
WritingMode.names = ['writing-mode']
WritingMode.msValues = {
ltr: {
'horizontal-tb': 'lr-tb',
'vertical-rl': 'tb-rl',
'vertical-lr': 'tb-lr'
},
rtl: {
'horizontal-tb': 'rl-tb',
'vertical-rl': 'bt-rl',
'vertical-lr': 'bt-lr'
}
}
module.exports = WritingMode