55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
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let flexSpec = require('./flex-spec')
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let Declaration = require('../declaration')
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class JustifyContent extends Declaration {
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/**
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* Return property name by final spec
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*/
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normalize() {
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return 'justify-content'
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}
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/**
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* Change property name for 2009 and 2012 specs
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*/
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prefixed(prop, prefix) {
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let spec
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;[spec, prefix] = flexSpec(prefix)
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if (spec === 2009) {
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return prefix + 'box-pack'
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}
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if (spec === 2012) {
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return prefix + 'flex-pack'
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}
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return super.prefixed(prop, prefix)
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}
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/**
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* Change value for 2009 and 2012 specs
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*/
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set(decl, prefix) {
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let spec = flexSpec(prefix)[0]
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if (spec === 2009 || spec === 2012) {
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let value = JustifyContent.oldValues[decl.value] || decl.value
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decl.value = value
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if (spec !== 2009 || value !== 'distribute') {
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return super.set(decl, prefix)
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}
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} else if (spec === 'final') {
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return super.set(decl, prefix)
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}
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return undefined
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}
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}
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JustifyContent.names = ['justify-content', 'flex-pack', 'box-pack']
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JustifyContent.oldValues = {
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'flex-end': 'end',
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'flex-start': 'start',
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'space-around': 'distribute',
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'space-between': 'justify'
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}
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module.exports = JustifyContent
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