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Webpack css-in-js plugin
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import { Plugin, Compiler } from 'webpack'; | |
import { ConcatSource } from 'webpack-sources'; | |
const loaderUtils = require('loader-utils'); | |
const Chunk = require('webpack/lib/Chunk'); | |
import { storeInstance } from '../store'; | |
import { generateCss } from '../../generator'; | |
import { StylesDescriptor } from '../../generator/utils'; | |
export class CSSInJSPlugin implements Plugin { | |
public apply(compiler: Compiler) { | |
compiler.hooks.thisCompilation.tap(this.constructor.name, (compilation) => { | |
compilation.hooks.additionalAssets.tap(this.constructor.name, () => { | |
const styleDescriptors = storeInstance.getStyles(); | |
const styleDescriptorsWithSortedStyles = Object.keys(styleDescriptors) | |
.sort() | |
.reduce<{ [key: string]: StylesDescriptor }>((result, styleDescriptorHash) => { | |
result[styleDescriptorHash] = styleDescriptors[styleDescriptorHash]; | |
return result; | |
}, {}); | |
const rtlStyles = generateCss(styleDescriptorsWithSortedStyles, 'rtl'); | |
const ltrStyles = generateCss(styleDescriptorsWithSortedStyles, 'ltr'); | |
const rtlChunk = new Chunk('stylesRtl'); | |
const ltrChunk = new Chunk('stylesLtr'); | |
const ltrFileName = loaderUtils.interpolateName({}, 'styles.ltr.[contenthash].css', { | |
content: ltrStyles, | |
}); | |
const rtlFileName = loaderUtils.interpolateName({}, 'styles.rtl.[contenthash].css', { | |
content: rtlStyles, | |
}); | |
ltrChunk.ids = []; | |
// @TODO change types | |
(ltrChunk.files as any).add(ltrFileName); | |
rtlChunk.ids = []; | |
// @TODO change types | |
(rtlChunk.files as any).add(rtlFileName); | |
// Add renderedSprite to compilation resources | |
// @TODO use https://github.com/webpack/webpack-sources | |
const ltrSource = new ConcatSource(); | |
ltrSource.add(ltrStyles); | |
compilation.assets[ltrFileName] = ltrSource; | |
// @TODO change types | |
(compilation.chunks as any).add(ltrChunk); | |
const rtlSource = new ConcatSource(); | |
rtlSource.add(rtlStyles); | |
compilation.assets[rtlFileName] = rtlSource; | |
// @TODO change types | |
(compilation.chunks as any).add(rtlChunk); | |
}); | |
}); | |
} | |
} |
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