| 提交 | 用户 | 时间 | ||
| fd2207 | 1 | <template> |
| 懒 | 2 | <el-color-picker |
| 3 | v-model="theme" | |
| 4 | :predefine="['#409EFF', '#1890ff', '#304156','#212121','#11a983', '#13c2c2', '#6959CD', '#f5222d', ]" | |
| 5 | class="theme-picker" | |
| 6 | popper-class="theme-picker-dropdown" | |
| 7 | /> | |
| 8 | </template> | |
| 9 | ||
| 10 | <script> | |
| 11 | const version = require('element-ui/package.json').version // element-ui version from node_modules | |
| 12 | const ORIGINAL_THEME = '#409EFF' // default color | |
| 13 | ||
| 14 | export default { | |
| 15 | data() { | |
| 16 | return { | |
| 17 | chalk: '', // content of theme-chalk css | |
| 18 | theme: '' | |
| 19 | } | |
| 20 | }, | |
| 21 | computed: { | |
| 22 | defaultTheme() { | |
| 23 | return this.$store.state.settings.theme | |
| 24 | } | |
| 25 | }, | |
| 26 | watch: { | |
| 27 | defaultTheme: { | |
| 28 | handler: function(val, oldVal) { | |
| 29 | this.theme = val | |
| 30 | }, | |
| 31 | immediate: true | |
| 32 | }, | |
| 33 | async theme(val) { | |
| 34 | await this.setTheme(val) | |
| 35 | } | |
| 36 | }, | |
| 37 | created() { | |
| 38 | if(this.defaultTheme !== ORIGINAL_THEME) { | |
| 39 | this.setTheme(this.defaultTheme) | |
| 40 | } | |
| 41 | }, | |
| 42 | ||
| 43 | methods: { | |
| 44 | async setTheme(val) { | |
| 45 | const oldVal = this.chalk ? this.theme : ORIGINAL_THEME | |
| 46 | if (typeof val !== 'string') return | |
| 47 | const themeCluster = this.getThemeCluster(val.replace('#', '')) | |
| 48 | const originalCluster = this.getThemeCluster(oldVal.replace('#', '')) | |
| 49 | ||
| 50 | const getHandler = (variable, id) => { | |
| 51 | return () => { | |
| 52 | const originalCluster = this.getThemeCluster(ORIGINAL_THEME.replace('#', '')) | |
| 53 | const newStyle = this.updateStyle(this[variable], originalCluster, themeCluster) | |
| 54 | ||
| 55 | let styleTag = document.getElementById(id) | |
| 56 | if (!styleTag) { | |
| 57 | styleTag = document.createElement('style') | |
| 58 | styleTag.setAttribute('id', id) | |
| 59 | document.head.appendChild(styleTag) | |
| 60 | } | |
| 61 | styleTag.innerText = newStyle | |
| 62 | } | |
| 63 | } | |
| 64 | ||
| 65 | if (!this.chalk) { | |
| 66 | const url = `https://unpkg.com/element-ui@${version}/lib/theme-chalk/index.css` | |
| 67 | await this.getCSSString(url, 'chalk') | |
| 68 | } | |
| 69 | ||
| 70 | const chalkHandler = getHandler('chalk', 'chalk-style') | |
| 71 | ||
| 72 | chalkHandler() | |
| 73 | ||
| 74 | const styles = [].slice.call(document.querySelectorAll('style')) | |
| 75 | .filter(style => { | |
| 76 | const text = style.innerText | |
| 77 | return new RegExp(oldVal, 'i').test(text) && !/Chalk Variables/.test(text) | |
| 78 | }) | |
| 79 | styles.forEach(style => { | |
| 80 | const { innerText } = style | |
| 81 | if (typeof innerText !== 'string') return | |
| 82 | style.innerText = this.updateStyle(innerText, originalCluster, themeCluster) | |
| 83 | }) | |
| 84 | ||
| 85 | this.$emit('change', val) | |
| 86 | }, | |
| 87 | ||
| 88 | updateStyle(style, oldCluster, newCluster) { | |
| 89 | let newStyle = style | |
| 90 | oldCluster.forEach((color, index) => { | |
| 91 | newStyle = newStyle.replace(new RegExp(color, 'ig'), newCluster[index]) | |
| 92 | }) | |
| 93 | return newStyle | |
| 94 | }, | |
| 95 | ||
| 96 | getCSSString(url, variable) { | |
| 97 | return new Promise(resolve => { | |
| 98 | const xhr = new XMLHttpRequest() | |
| 99 | xhr.onreadystatechange = () => { | |
| 100 | if (xhr.readyState === 4 && xhr.status === 200) { | |
| 101 | this[variable] = xhr.responseText.replace(/@font-face{[^}]+}/, '') | |
| 102 | resolve() | |
| 103 | } | |
| 104 | } | |
| 105 | xhr.open('GET', url) | |
| 106 | xhr.send() | |
| 107 | }) | |
| 108 | }, | |
| 109 | ||
| 110 | getThemeCluster(theme) { | |
| 111 | const tintColor = (color, tint) => { | |
| 112 | let red = parseInt(color.slice(0, 2), 16) | |
| 113 | let green = parseInt(color.slice(2, 4), 16) | |
| 114 | let blue = parseInt(color.slice(4, 6), 16) | |
| 115 | ||
| 116 | if (tint === 0) { // when primary color is in its rgb space | |
| 117 | return [red, green, blue].join(',') | |
| 118 | } else { | |
| 119 | red += Math.round(tint * (255 - red)) | |
| 120 | green += Math.round(tint * (255 - green)) | |
| 121 | blue += Math.round(tint * (255 - blue)) | |
| 122 | ||
| 123 | red = red.toString(16) | |
| 124 | green = green.toString(16) | |
| 125 | blue = blue.toString(16) | |
| 126 | ||
| 127 | return `#${red}${green}${blue}` | |
| 128 | } | |
| 129 | } | |
| 130 | ||
| 131 | const shadeColor = (color, shade) => { | |
| 132 | let red = parseInt(color.slice(0, 2), 16) | |
| 133 | let green = parseInt(color.slice(2, 4), 16) | |
| 134 | let blue = parseInt(color.slice(4, 6), 16) | |
| 135 | ||
| 136 | red = Math.round((1 - shade) * red) | |
| 137 | green = Math.round((1 - shade) * green) | |
| 138 | blue = Math.round((1 - shade) * blue) | |
| 139 | ||
| 140 | red = red.toString(16) | |
| 141 | green = green.toString(16) | |
| 142 | blue = blue.toString(16) | |
| 143 | ||
| 144 | return `#${red}${green}${blue}` | |
| 145 | } | |
| 146 | ||
| 147 | const clusters = [theme] | |
| 148 | for (let i = 0; i <= 9; i++) { | |
| 149 | clusters.push(tintColor(theme, Number((i / 10).toFixed(2)))) | |
| 150 | } | |
| 151 | clusters.push(shadeColor(theme, 0.1)) | |
| 152 | return clusters | |
| 153 | } | |
| 154 | } | |
| 155 | } | |
| 156 | </script> | |
| 157 | ||
| 158 | <style> | |
| 159 | .theme-message, | |
| 160 | .theme-picker-dropdown { | |
| 161 | z-index: 99999 !important; | |
| 162 | } | |
| 163 | ||
| 164 | .theme-picker .el-color-picker__trigger { | |
| 165 | height: 26px !important; | |
| 166 | width: 26px !important; | |
| 167 | padding: 2px; | |
| 168 | } | |
| 169 | ||
| 170 | .theme-picker-dropdown .el-color-dropdown__link-btn { | |
| 171 | display: none; | |
| 172 | } | |
| 173 | </style> | |
