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- /*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Tobias Koppers @sokra
- Modified by Evan You @yyx990803
- */
- var loaderUtils = require('loader-utils')
- var path = require('path')
- var hash = require('hash-sum')
- var qs = require('querystring')
-
- module.exports = function () {}
-
- module.exports.pitch = function (remainingRequest) {
- var isServer = this.target === 'node'
- var isProduction = this.minimize || process.env.NODE_ENV === 'production'
- var addStylesClientPath = loaderUtils.stringifyRequest(this, '!' + path.join(__dirname, 'lib/addStylesClient.js'))
- var addStylesServerPath = loaderUtils.stringifyRequest(this, '!' + path.join(__dirname, 'lib/addStylesServer.js'))
- var addStylesShadowPath = loaderUtils.stringifyRequest(this, '!' + path.join(__dirname, 'lib/addStylesShadow.js'))
-
- var request = loaderUtils.stringifyRequest(this, '!!' + remainingRequest)
- var relPath = path.relative(__dirname, this.resourcePath).replace(/\\/g, '/')
- var id = JSON.stringify(hash(request + relPath))
- var options = loaderUtils.getOptions(this) || {}
-
- // direct css import from js --> direct, or manually call `styles.__inject__(ssrContext)` with `manualInject` option
- // css import from vue file --> component lifecycle linked
- // style embedded in vue file --> component lifecycle linked
- var isVue = (
- /"vue":true/.test(remainingRequest) ||
- options.manualInject ||
- qs.parse(this.resourceQuery.slice(1)).vue != null
- )
-
- var shared = [
- '// style-loader: Adds some css to the DOM by adding a <style> tag',
- '',
- '// load the styles',
- 'var content = require(' + request + ');',
- // content list format is [id, css, media, sourceMap]
- "if(typeof content === 'string') content = [[module.id, content, '']];",
- 'if(content.locals) module.exports = content.locals;'
- ]
-
- // shadowMode is enabled in vue-cli with vue build --target web-component.
- // exposes the same __inject__ method like SSR
- if (options.shadowMode) {
- return shared.concat([
- '// add CSS to Shadow Root',
- 'var add = require(' + addStylesShadowPath + ').default',
- 'module.exports.__inject__ = function (shadowRoot) {',
- ' add(' + id + ', content, shadowRoot)',
- '};'
- ]).join('\n')
- } else if (!isServer) {
- // on the client: dynamic inject + hot-reload
- var code = [
- '// add the styles to the DOM',
- 'var add = require(' + addStylesClientPath + ').default',
- 'var update = add(' + id + ', content, ' + isProduction + ', ' + JSON.stringify(options) + ');'
- ]
- if (!isProduction) {
- code = code.concat([
- '// Hot Module Replacement',
- 'if(module.hot) {',
- ' // When the styles change, update the <style> tags',
- ' if(!content.locals) {',
- ' module.hot.accept(' + request + ', function() {',
- ' var newContent = require(' + request + ');',
- " if(typeof newContent === 'string') newContent = [[module.id, newContent, '']];",
- ' update(newContent);',
- ' });',
- ' }',
- ' // When the module is disposed, remove the <style> tags',
- ' module.hot.dispose(function() { update(); });',
- '}'
- ])
- }
- return shared.concat(code).join('\n')
- } else {
- // on the server: attach to Vue SSR context
- if (isVue) {
- // inside *.vue file: expose a function so it can be called in
- // component's lifecycle hooks
- return shared.concat([
- '// add CSS to SSR context',
- 'var add = require(' + addStylesServerPath + ').default',
- 'module.exports.__inject__ = function (context) {',
- ' add(' + id + ', content, ' + isProduction + ', context)',
- '};'
- ]).join('\n')
- } else {
- // normal import
- return shared.concat([
- 'require(' + addStylesServerPath + ').default(' + id + ', content, ' + isProduction + ')'
- ]).join('\n')
- }
- }
- }
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