mirror of
https://gitee.com/element-plus/element-plus.git
synced 2024-12-14 01:11:25 +08:00
157 lines
4.5 KiB
Vue
157 lines
4.5 KiB
Vue
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<template>
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<el-color-picker
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v-model="theme"
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class="theme-picker"
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popper-class="theme-picker-dropdown"
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/>
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</template>
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<script>
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import Element from 'main/index.js'
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const { version } = Element
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const ORIGINAL_THEME = '#409EFF'
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export default {
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data() {
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return {
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chalk: '', // content of theme-chalk css
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docs: '', // content of docs css
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theme: ORIGINAL_THEME,
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}
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},
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watch: {
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theme(val, oldVal) {
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if (typeof val !== 'string') return
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const themeCluster = this.getThemeCluster(val.replace('#', ''))
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const originalCluster = this.getThemeCluster(oldVal.replace('#', ''))
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const getHandler = (variable, id) => {
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return () => {
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const originalCluster = this.getThemeCluster(ORIGINAL_THEME.replace('#', ''))
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let newStyle = this.updateStyle(this[variable], originalCluster, themeCluster)
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let styleTag = document.getElementById(id)
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if (!styleTag) {
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styleTag = document.createElement('style')
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styleTag.setAttribute('id', id)
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document.head.appendChild(styleTag)
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}
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styleTag.innerText = newStyle
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}
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}
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const chalkHandler = getHandler('chalk', 'chalk-style')
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const docsHandler = getHandler('docs', 'docs-style')
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if (!this.chalk) {
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const url = `https://unpkg.com/element-ui@${ version }/lib/theme-chalk/index.css`
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this.getCSSString(url, chalkHandler, 'chalk')
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} else {
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chalkHandler()
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}
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if (!this.docs) {
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const links = [].filter.call(document.querySelectorAll('link'), link => {
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return /docs\..+\.css/.test(link.href || '')
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})
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links[0] && this.getCSSString(links[0].href, docsHandler, 'docs')
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} else {
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docsHandler()
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}
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const styles = [].slice.call(document.querySelectorAll('style'))
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.filter(style => {
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const text = style.innerText
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return new RegExp(oldVal, 'i').test(text) && !/Chalk Variables/.test(text)
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})
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styles.forEach(style => {
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const { innerText } = style
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if (typeof innerText !== 'string') return
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style.innerText = this.updateStyle(innerText, originalCluster, themeCluster)
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})
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},
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},
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methods: {
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updateStyle(style, oldCluster, newCluster) {
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let newStyle = style
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oldCluster.forEach((color, index) => {
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newStyle = newStyle.replace(new RegExp(color, 'ig'), newCluster[index])
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})
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return newStyle
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},
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getCSSString(url, callback, variable) {
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const xhr = new XMLHttpRequest()
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xhr.onreadystatechange = () => {
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if (xhr.readyState === 4 && xhr.status === 200) {
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this[variable] = xhr.responseText.replace(/@font-face{[^}]+}/, '')
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callback()
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}
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}
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xhr.open('GET', url)
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xhr.send()
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},
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getThemeCluster(theme) {
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const tintColor = (color, tint) => {
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let red = parseInt(color.slice(0, 2), 16)
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let green = parseInt(color.slice(2, 4), 16)
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let blue = parseInt(color.slice(4, 6), 16)
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if (tint === 0) { // when primary color is in its rgb space
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return [red, green, blue].join(',')
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} else {
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red += Math.round(tint * (255 - red))
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green += Math.round(tint * (255 - green))
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blue += Math.round(tint * (255 - blue))
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red = red.toString(16)
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green = green.toString(16)
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blue = blue.toString(16)
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return `#${ red }${ green }${ blue }`
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}
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}
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const shadeColor = (color, shade) => {
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let red = parseInt(color.slice(0, 2), 16)
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let green = parseInt(color.slice(2, 4), 16)
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let blue = parseInt(color.slice(4, 6), 16)
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red = Math.round((1 - shade) * red)
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green = Math.round((1 - shade) * green)
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blue = Math.round((1 - shade) * blue)
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red = red.toString(16)
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green = green.toString(16)
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blue = blue.toString(16)
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return `#${ red }${ green }${ blue }`
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}
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const clusters = [theme]
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for (let i = 0; i <= 9; i++) {
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clusters.push(tintColor(theme, Number((i / 10).toFixed(2))))
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}
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clusters.push(shadeColor(theme, 0.1))
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return clusters
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},
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},
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}
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</script>
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<style lang="scss" scoped>
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.theme-picker {
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height: 80px;
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display: inline-block;
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// @utils-vertical-center;
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}
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.theme-picker .el-color-picker__trigger {
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vertical-align: middle;
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}
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.theme-picker-dropdown .el-color-dropdown__link-btn {
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display: none;
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}
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</style>
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