FantasyNJ / webpack-theme-color-replacer

A dynamic theme color replacement plugin in webpack

This plugin can extract theme color styles from all the outputed css files (such as element-ui theme colors), and make a 'theme-colors.css' file which only contains color styles. At runtime in your web page, the client part will help you to download this css file, and then replace the colors into new customized colors dynamicly.

This is a sample: http://test.hz300.com/webpack4/themeColor.html

Implementation (Chinese): https://segmentfault.com/a/1190000016061608

1.Install

npm i -D webpack-theme-color-replacer

2.Cofig for webpack

const ThemeColorReplacer = require('webpack-theme-color-replacer')

module.exports = {
    .....
    plugins: [
        new ThemeColorReplacer({
            fileName: 'css/theme-colors.css', // output css file name
            matchColors: [
                ...ThemeColorReplacer.getElementUISeries('#409EFF'), // primary color of element-ui
                '#0cdd3a',  //other custom color
            ],
            cssPrefix: true  // add a prefix to each class name. This can raise css priority.
        })
    ],
}

You can view this sample: https://github.com/hzsrc/vue-element-ui-scaffold-webpack4/blob/master/build/webpack.base.conf.js

3.Usage in your web page

    import replacer from 'webpack-theme-color-replacer/client';

    export default {
        data() {
            return {
                mainColor: '#409EFF',
                oldColor: '#409EFF',  // primary color of element-ui
            };
        },
        methods: {
            changeColor(newVal) {
                var options = {
                    primary: { // primary color
                        oldColor: this.oldColor,
                        newColor: newVal,
                    },
                    cssUrl: 'css/theme-colors.css',
                    others: { //custom colors
                        oldColors: ['#0cdd3a', '#c655dd'],
                        newColors: ['#ff0000', '#ffff00'],
                    }
                };
                replacer.elementUI.changeColor(options);

                this.oldColor = newVal
            }
        },
    }

You can view this sample: https://github.com/hzsrc/vue-element-ui-scaffold-webpack4/blob/master/src/modules/themeColor/changeColor.vue