shift73k/assets_old/node_modules/autoprefixer/lib/hacks/flex-flow.js

53 lines
1.4 KiB
JavaScript

let flexSpec = require('./flex-spec')
let Declaration = require('../declaration')
class FlexFlow extends Declaration {
/**
* Use two properties for 2009 spec
*/
insert (decl, prefix, prefixes) {
let spec
;[spec, prefix] = flexSpec(prefix)
if (spec !== 2009) {
return super.insert(decl, prefix, prefixes)
}
let values = decl.value
.split(/\s+/)
.filter(i => i !== 'wrap' && i !== 'nowrap' && 'wrap-reverse')
if (values.length === 0) {
return undefined
}
let already = decl.parent.some(
i =>
i.prop === prefix + 'box-orient' || i.prop === prefix + 'box-direction'
)
if (already) {
return undefined
}
let value = values[0]
let orient = value.includes('row') ? 'horizontal' : 'vertical'
let dir = value.includes('reverse') ? 'reverse' : 'normal'
let cloned = this.clone(decl)
cloned.prop = prefix + 'box-orient'
cloned.value = orient
if (this.needCascade(decl)) {
cloned.raws.before = this.calcBefore(prefixes, decl, prefix)
}
decl.parent.insertBefore(decl, cloned)
cloned = this.clone(decl)
cloned.prop = prefix + 'box-direction'
cloned.value = dir
if (this.needCascade(decl)) {
cloned.raws.before = this.calcBefore(prefixes, decl, prefix)
}
return decl.parent.insertBefore(decl, cloned)
}
}
FlexFlow.names = ['flex-flow', 'box-direction', 'box-orient']
module.exports = FlexFlow