89 lines
2.1 KiB
JavaScript
89 lines
2.1 KiB
JavaScript
let Declaration = require('../declaration')
|
|
|
|
class MaskComposite extends Declaration {
|
|
/**
|
|
* Prefix mask-composite for webkit
|
|
*/
|
|
insert(decl, prefix, prefixes) {
|
|
let isCompositeProp = decl.prop === 'mask-composite'
|
|
|
|
let compositeValues
|
|
|
|
if (isCompositeProp) {
|
|
compositeValues = decl.value.split(',')
|
|
} else {
|
|
compositeValues = decl.value.match(MaskComposite.regexp) || []
|
|
}
|
|
|
|
compositeValues = compositeValues.map(el => el.trim()).filter(el => el)
|
|
let hasCompositeValues = compositeValues.length
|
|
|
|
let compositeDecl
|
|
|
|
if (hasCompositeValues) {
|
|
compositeDecl = this.clone(decl)
|
|
compositeDecl.value = compositeValues
|
|
.map(value => MaskComposite.oldValues[value] || value)
|
|
.join(', ')
|
|
|
|
if (compositeValues.includes('intersect')) {
|
|
compositeDecl.value += ', xor'
|
|
}
|
|
|
|
compositeDecl.prop = prefix + 'mask-composite'
|
|
}
|
|
|
|
if (isCompositeProp) {
|
|
if (!hasCompositeValues) {
|
|
return undefined
|
|
}
|
|
|
|
if (this.needCascade(decl)) {
|
|
compositeDecl.raws.before = this.calcBefore(prefixes, decl, prefix)
|
|
}
|
|
|
|
return decl.parent.insertBefore(decl, compositeDecl)
|
|
}
|
|
|
|
let cloned = this.clone(decl)
|
|
cloned.prop = prefix + cloned.prop
|
|
|
|
if (hasCompositeValues) {
|
|
cloned.value = cloned.value.replace(MaskComposite.regexp, '')
|
|
}
|
|
|
|
if (this.needCascade(decl)) {
|
|
cloned.raws.before = this.calcBefore(prefixes, decl, prefix)
|
|
}
|
|
|
|
decl.parent.insertBefore(decl, cloned)
|
|
|
|
if (!hasCompositeValues) {
|
|
return decl
|
|
}
|
|
|
|
if (this.needCascade(decl)) {
|
|
compositeDecl.raws.before = this.calcBefore(prefixes, decl, prefix)
|
|
}
|
|
return decl.parent.insertBefore(decl, compositeDecl)
|
|
}
|
|
}
|
|
|
|
MaskComposite.names = ['mask', 'mask-composite']
|
|
|
|
MaskComposite.oldValues = {
|
|
add: 'source-over',
|
|
exclude: 'xor',
|
|
intersect: 'source-in',
|
|
subtract: 'source-out'
|
|
}
|
|
|
|
MaskComposite.regexp = new RegExp(
|
|
`\\s+(${Object.keys(MaskComposite.oldValues).join(
|
|
'|'
|
|
)})\\b(?!\\))\\s*(?=[,])`,
|
|
'ig'
|
|
)
|
|
|
|
module.exports = MaskComposite
|