66 lines
1.3 KiB
Plaintext
66 lines
1.3 KiB
Plaintext
let flexSpec = require('./flex-spec')
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let OldValue = require('../old-value')
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let Value = require('../value')
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class DisplayFlex extends Value {
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constructor (name, prefixes) {
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super(name, prefixes)
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if (name === 'display-flex') {
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this.name = 'flex'
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}
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}
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/**
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* Faster check for flex value
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*/
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check (decl) {
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return decl.prop === 'display' && decl.value === this.name
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}
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/**
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* Return value by spec
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*/
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prefixed (prefix) {
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let spec, value
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;[spec, prefix] = flexSpec(prefix)
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if (spec === 2009) {
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if (this.name === 'flex') {
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value = 'box'
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} else {
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value = 'inline-box'
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}
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} else if (spec === 2012) {
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if (this.name === 'flex') {
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value = 'flexbox'
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} else {
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value = 'inline-flexbox'
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}
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} else if (spec === 'final') {
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value = this.name
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}
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return prefix + value
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}
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/**
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* Add prefix to value depend on flebox spec version
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*/
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replace (string, prefix) {
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return this.prefixed(prefix)
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}
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/**
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* Change value for old specs
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*/
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old (prefix) {
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let prefixed = this.prefixed(prefix)
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if (!prefixed) return undefined
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return new OldValue(this.name, prefixed)
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}
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}
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DisplayFlex.names = ['display-flex', 'inline-flex']
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module.exports = DisplayFlex
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