iczer
4 years ago
parent
8cbde7bff5
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6e5592fff7
11 changed files with 231 additions and 95 deletions
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/** |
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* webpack-theme-color-replacer 配置 |
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* webpack-theme-color-replacer 是一个高效的主题色替换插件，可以实现系统运行时动态切换主题功能。 |
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* 但有些情景下，我们需要为 webpack-theme-color-replacer 配置一些规则，以达到我们的个性化需求的目的 |
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* |
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* @cssResolve: css处理规则，在 webpack-theme-color-replacer 提取 需要替换主题色的 css 后，应用此规则。一般在 |
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* webpack-theme-color-replacer 默认规则无法达到我们的要求时使用。 |
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*/ |
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const cssResolve = require('./resolve.config') |
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module.exports = {cssResolve} |
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/** |
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* webpack-theme-color-replacer 插件的 resolve 配置 |
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* 为特定的 css 选择器（selector）配置 resolve 规则。 |
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* |
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* key 为 css selector 值或合法的正则表达式字符串 |
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* 当 key 设置 css selector 值时，会匹配对应的 css |
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* 当 key 设置为正则表达式时，会匹配所有满足此正则表达式的的 css |
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* |
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* value 可以设置为 boolean 值 false 或 一个对象 |
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* 当 value 为 false 时，则会忽略此 css，即此 css 不纳入 webpack-theme-color-replacer 管理 |
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* 当 value 为 对象时，会调用该对象的 resolve 函数，并传入 cssText（原始的 css文本） 和 cssObj（css对象）参数; resolve函数应该返 |
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* 回一个处理后的、合法的 css字符串（包含 selector） |
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* 注意: value 不能设置为 true |
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*/ |
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const cssResolve = { |
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'.ant-checkbox-checked .ant-checkbox-inner::after': false, |
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'.ant-menu-dark .ant-menu-inline.ant-menu-sub': { |
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resolve(cssText, cssObj) { |
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cssObj.rules = cssObj.rules.filter(rule => rule.indexOf('box-shadow') == -1) |
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return cssObj.toText() |
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} |
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}, |
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'.ant-menu-horizontal>.ant-menu-item:hover,.ant-menu-horizontal>.ant-menu-submenu:hover,.ant-menu-horizontal>.ant-menu-item-active,.ant-menu-horizontal>.ant-menu-submenu-active,.ant-menu-horizontal>.ant-menu-item-open,.ant-menu-horizontal>.ant-menu-submenu-open,.ant-menu-horizontal>.ant-menu-item-selected,.ant-menu-horizontal>.ant-menu-submenu-selected': { |
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resolve(cssText, cssObj) { |
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cssObj.selector = cssObj.selector.replace(/.ant-menu-horizontal/g, '.ant-menu-horizontal:not(.ant-menu-dark)') |
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return cssObj.toText() |
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} |
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}, |
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'.ant-layout-sider': { |
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resolve(cssText, cssObj) { |
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cssObj.selector = '.ant-layout-sider-dark' |
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return cssObj.toText() |
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} |
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}, |
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'/keyframes/': false |
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} |
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module.exports = cssResolve |
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const {cssResolve} = require('../config/replacer') |
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// 修正 webpack-theme-color-replacer 插件提取的 css 结果
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function resolveCss(output, srcArr) { |
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let regExps = [] |
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// 提取 resolve 配置中所有的正则配置
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Object.keys(cssResolve).forEach(key => { |
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let isRegExp = false |
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let reg = {} |
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try { |
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reg = eval(key) |
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isRegExp = reg instanceof RegExp |
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} catch (e) { |
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isRegExp = false |
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} |
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if (isRegExp) { |
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regExps.push([reg, cssResolve[key]]) |
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} |
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}) |
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|
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// 去重
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srcArr = dropDuplicate(srcArr) |
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|
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// 处理 css
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let outArr = [] |
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srcArr.forEach(text => { |
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// 转换为 css 对象
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let cssObj = parseCssObj(text) |
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// 根据selector匹配配置，匹配成功，则按配置处理 css
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if (cssResolve[cssObj.selector]) { |
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outArr.push(cssResolve[cssObj.selector].resolve(text, cssObj)) |
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} else { |
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let cssText = '' |
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// 匹配不成功，则测试是否有匹配的正则配置，有则按正则对应的配置处理
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for (let regExp of regExps) { |
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if (regExp[0].test(cssObj.selector)) { |
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let cssCfg = regExp[1] |
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cssText = cssCfg ? cssCfg.resolve(text, cssObj) : '' |
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break |
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} |
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// 未匹配到正则，则设置 cssText 为默认的 css（即不处理）
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cssText = text |
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} |
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if (cssText != '') { |
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outArr.push(cssText) |
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} |
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} |
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}) |
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output = outArr.join('\n') |
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return output |
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} |
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// 数组去重
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function dropDuplicate(arr) { |
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let map = {} |
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let r = [] |
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for (let s of arr) { |
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if (!map[s]) { |
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r.push(s) |
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map[s] = 1 |
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} |
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} |
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return r |
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} |
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/** |
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* 从字符串解析 css 对象 |
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* @param cssText |
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* @returns {{ |
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* name: String, |
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* rules: Array[String], |
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* toText: function |
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* }} |
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*/ |
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function parseCssObj(cssText) { |
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let css = {} |
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const ruleIndex = cssText.indexOf('{') |
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css.selector = cssText.substring(0, ruleIndex) |
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const ruleBody = cssText.substring(ruleIndex + 1, cssText.length - 1) |
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const rules = ruleBody.split(';') |
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css.rules = rules |
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css.toText = function () { |
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let body = '' |
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this.rules.forEach(item => {body += item + ';'}) |
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return `${this.selector}{${body}}` |
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} |
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return css |
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} |
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module.exports = {resolveCss} |
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