Elijah
724d70e58b
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52 lines
1.3 KiB
JavaScript
52 lines
1.3 KiB
JavaScript
let Declaration = require('../declaration')
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let { isPureNumber } = require('../utils')
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class GridEnd extends Declaration {
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/**
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* Change repeating syntax for IE
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*/
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insert(decl, prefix, prefixes, result) {
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if (prefix !== '-ms-') return super.insert(decl, prefix, prefixes)
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let clonedDecl = this.clone(decl)
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let startProp = decl.prop.replace(/end$/, 'start')
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let spanProp = prefix + decl.prop.replace(/end$/, 'span')
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if (decl.parent.some(i => i.prop === spanProp)) {
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return undefined
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}
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clonedDecl.prop = spanProp
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if (decl.value.includes('span')) {
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clonedDecl.value = decl.value.replace(/span\s/i, '')
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} else {
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let startDecl
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decl.parent.walkDecls(startProp, d => {
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startDecl = d
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})
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if (startDecl) {
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if (isPureNumber(startDecl.value)) {
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let value = Number(decl.value) - Number(startDecl.value) + ''
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clonedDecl.value = value
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} else {
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return undefined
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}
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} else {
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decl.warn(
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result,
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`Can not prefix ${decl.prop} (${startProp} is not found)`
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)
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}
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}
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decl.cloneBefore(clonedDecl)
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return undefined
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}
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}
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GridEnd.names = ['grid-row-end', 'grid-column-end']
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module.exports = GridEnd
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