admin_vue/11-前端模块化开发Webpack(Node.js基础)/04-webpack_Loader使用/node_modules/style-loader/dist/index.js

165 lines
4.3 KiB
JavaScript

"use strict";
var _path = _interopRequireDefault(require("path"));
var _loaderUtils = _interopRequireDefault(require("loader-utils"));
var _schemaUtils = _interopRequireDefault(require("schema-utils"));
var _options = _interopRequireDefault(require("./options.json"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
module.exports = () => {};
module.exports.pitch = function loader(request) {
const options = _loaderUtils.default.getOptions(this) || {};
(0, _schemaUtils.default)(_options.default, options, {
name: 'Style Loader',
baseDataPath: 'options'
});
const insert = typeof options.insert === 'undefined' ? '"head"' : typeof options.insert === 'string' ? JSON.stringify(options.insert) : options.insert.toString();
const injectType = options.injectType || 'styleTag';
switch (injectType) {
case 'linkTag':
{
const hmrCode = this.hot ? `
if (module.hot) {
module.hot.accept(
${_loaderUtils.default.stringifyRequest(this, `!!${request}`)},
function() {
var newContent = require(${_loaderUtils.default.stringifyRequest(this, `!!${request}`)});
newContent = newContent.__esModule ? newContent.default : newContent;
update(newContent);
}
);
module.hot.dispose(function() {
update();
});
}` : '';
return `var options = ${JSON.stringify(options)};
options.insert = ${insert};
var content = require(${_loaderUtils.default.stringifyRequest(this, `!!${request}`)});
content = content.__esModule ? content.default : content;
var update = require(${_loaderUtils.default.stringifyRequest(this, `!${_path.default.join(__dirname, 'runtime/injectStylesIntoLinkTag.js')}`)})(content, options);
${hmrCode}`;
}
case 'lazyStyleTag':
case 'lazySingletonStyleTag':
{
const isSingleton = injectType === 'lazySingletonStyleTag';
const hmrCode = this.hot ? `
if (module.hot) {
var lastRefs = module.hot.data && module.hot.data.refs || 0;
if (lastRefs) {
exports.use();
if (!content.locals) {
refs = lastRefs;
}
}
if (!content.locals) {
module.hot.accept();
}
module.hot.dispose(function(data) {
data.refs = content.locals ? 0 : refs;
if (dispose) {
dispose();
}
});
}` : '';
return `var refs = 0;
var dispose;
var content = require(${_loaderUtils.default.stringifyRequest(this, `!!${request}`)});
content = content.__esModule ? content.default : content;
var options = ${JSON.stringify(options)};
options.insert = ${insert};
options.singleton = ${isSingleton};
if (typeof content === 'string') {
content = [[module.id, content, '']];
}
if (content.locals) {
exports.locals = content.locals;
}
exports.use = function() {
if (!(refs++)) {
dispose = require(${_loaderUtils.default.stringifyRequest(this, `!${_path.default.join(__dirname, 'runtime/injectStylesIntoStyleTag.js')}`)})(content, options);
}
return exports;
};
exports.unuse = function() {
if (refs > 0 && !--refs) {
dispose();
dispose = null;
}
};
${hmrCode}
`;
}
case 'styleTag':
case 'singletonStyleTag':
default:
{
const isSingleton = injectType === 'singletonStyleTag';
const hmrCode = this.hot ? `
if (module.hot) {
if (!content.locals) {
module.hot.accept(
${_loaderUtils.default.stringifyRequest(this, `!!${request}`)},
function () {
var newContent = require(${_loaderUtils.default.stringifyRequest(this, `!!${request}`)});
newContent = newContent.__esModule ? newContent.default : newContent;
if (typeof newContent === 'string') {
newContent = [[module.id, newContent, '']];
}
update(newContent);
}
)
}
module.hot.dispose(function() {
update();
});
}` : '';
return `var content = require(${_loaderUtils.default.stringifyRequest(this, `!!${request}`)});
content = content.__esModule ? content.default : content;
if (typeof content === 'string') {
content = [[module.id, content, '']];
}
var options = ${JSON.stringify(options)}
options.insert = ${insert};
options.singleton = ${isSingleton};
var update = require(${_loaderUtils.default.stringifyRequest(this, `!${_path.default.join(__dirname, 'runtime/injectStylesIntoStyleTag.js')}`)})(content, options);
if (content.locals) {
module.exports = content.locals;
}
${hmrCode}`;
}
}
};