1.自定义主题
自定义几种固定主题，目前是公司项目中最常用的方式
安装 element-theme
npm i element-theme -D
安装 theme-chalk
npm i element-theme-chalk -D
初始化变量
et -i
执行完命令后，可看到当前目录下生成了element-variables.scss文件，也可以自己自定义文件名et --init (file path)
修改变量
编辑 element-variables.scss 文件, 例如修改主题色为橙色
$--color-primary: orange !default;
编译
保存文件后，项目根目录下执行et 编译主题
et
执行完后，项目根目录下生成 theme 文件夹, 将 theme 文件夹放入到 src 目录下
引入
修改 main.js
...
import(`./theme/index.css`);
主题色变量使用
<style>
.main{
color: var(--Main);
}
</style>
2. 多套皮肤切换
定制多套皮肤切换, 生成几种皮肤，可以做深度皮肤切换。
在项目 src 目录下新建theme文件夹, 新建三个 sass 文件
theme-blue.scss
$--color-primary: #409EFF !default;
:root {
--Main: #409EFF;
}
theme-orange.scss
$--color-primary: #E6A23C !default;
:root {
--Main: #E6A23C;
}
theme-red.scss
$--color-primary: #F56C6C !default;
:root {
--Main: #F56C6C;
}
在 src 下新建 index.less 文件夹
$--font-path: '~element-ui/lib/theme-chalk/fonts';
.body-theme-blue {
@import './theme/theme-blue.scss';
@import "~element-ui/packages/theme-chalk/src/index";
}
.body-theme-red {
@import './theme/theme-red.scss';
@import "~element-ui/packages/theme-chalk/src/index";
}
.body-theme-orange {
@import './theme/theme-orange.scss';
@import "~element-ui/packages/theme-chalk/src/index";
}
修改 main.js 文件
document.body.className = localStorage.theme ?
'body-theme-' + window.themeConfig.filter(v => v.value === localStorage.theme)[0].key :
'body-theme-' + window.themeConfig[0].key;
# 引入 less
import './index.less'
主题色变量使用
<style>
.main{
color: var(--Main);
}
</style>
3.element-ui 官方颜色选择器简单换肤
颜色选择器可以实现简单全色值皮肤切换，适合做基础皮肤切换
<template>
<el-color-picker
class="theme-picker"
popper-class="theme-picker-dropdown"
v-model="theme"
:size="size"
>
</el-color-picker>
</template>
<script>
const version = require('element-ui/package.json').version
const ORIGINAL_THEME = '#409EFF'
export default {
name: 'ThemePicker',
props: {
default: {
type: String,
default: ORIGINAL_THEME
},
size: {
// 初始化主题，可由外部传入
type: String,
default: 'small'
}
},
data() {
return {
chalk: '', // content of theme-chalk css
theme: ORIGINAL_THEME,
showSuccess: true // 是否弹出换肤成功消息
}
},
mounted() {
if (this.default !== null) {
this.theme = this.default
this.$emit('onThemeChange', this.theme)
this.showSuccess = false
}
},
watch: {
theme(val, oldVal) {
if (typeof val !== 'string') {
return
}
const themeCluster = this.getThemeCluster(val.replace('#', ''))
let originalCluster = this.getThemeCluster(oldVal.replace('#', ''))
const getHandler = (variable, id) => {
return () => {
originalCluster = this.getThemeCluster(
ORIGINAL_THEME.replace('#', '')
)
const newStyle = this.updateStyle(
this[variable],
originalCluster,
themeCluster
)
let styleTag = document.getElementById(id)
if (!styleTag) {
styleTag = document.createElement('style')
styleTag.setAttribute('id', id)
document.head.appendChild(styleTag)
}
styleTag.innerText = newStyle
}
}
const chalkHandler = getHandler('chalk', 'chalk-style')
if (!this.chalk) {
const url = `https://unpkg.com/element-ui@${version}/lib/theme-chalk/index.css`
this.getCSSString(url, chalkHandler, 'chalk')
} else {
chalkHandler()
}
const styles = [].slice
.call(document.querySelectorAll('style'))
.filter(style => {
const text = style.innerText
return (
new RegExp(oldVal, 'i').test(text) &&
!(/Chalk Variables/).test(text)
)
})
styles.forEach(style => {
const { innerText } = style
if (typeof innerText !== 'string') {
return
}
style.innerText = this.updateStyle(
innerText,
originalCluster,
themeCluster
)
})
// 响应外部操作
this.$emit('onThemeChange', val)
//存入localStorage
if (this.showSuccess) {
this.$message({
message: '换肤成功',
type: 'success'
})
} else {
this.showSuccess = true
}
}
},
methods: {
updateStyle(style, oldCluster, newCluster) {
let newStyle = style
oldCluster.forEach((color, index) => {
newStyle = newStyle.replace(
new RegExp(color, 'ig'),
newCluster[index]
)
})
return newStyle
},
getCSSString(url, callback, variable) {
const xhr = new XMLHttpRequest()
xhr.onreadystatechange = () => {
if (xhr.readyState === 4 && xhr.status === 200) {
this[variable] = xhr.responseText.replace(
/@font-face{[^}]+}/,
''
)
callback()
}
}
xhr.open('GET', url)
xhr.send()
},
getThemeCluster(theme) {
const tintColor = (color, tint) => {
let red = parseInt(color.slice(0, 2), 16)
let green = parseInt(color.slice(2, 4), 16)
let blue = parseInt(color.slice(4, 6), 16)
if (tint === 0) {
// when primary color is in its rgb space
return [red, green, blue].join(',')
} else {
red += Math.round(tint * (255 - red))
green += Math.round(tint * (255 - green))
blue += Math.round(tint * (255 - blue))
red = red.toString(16)
green = green.toString(16)
blue = blue.toString(16)
return `#${red}${green}${blue}`
}
}
const shadeColor = (color, shade) => {
let red = parseInt(color.slice(0, 2), 16)
let green = parseInt(color.slice(2, 4), 16)
let blue = parseInt(color.slice(4, 6), 16)
red = Math.round((1 - shade) * red)
green = Math.round((1 - shade) * green)
blue = Math.round((1 - shade) * blue)
red = red.toString(16)
green = green.toString(16)
blue = blue.toString(16)
return `#${red}${green}${blue}`
}
let clusters = [theme]
for (let i = 0; i <= 9; i++) {
clusters.push(tintColor(theme, Number((i / 10).toFixed(2))))
}
clusters.push(shadeColor(theme, 0.1))
return clusters
}
}
}
</script>
<style>
.theme-picker .el-color-picker__trigger {
vertical-align: middle;
}
.theme-picker-dropdown .el-color-dropdown__link-btn {
display: none;
}
</style>
