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【更新】ColorPicker id属性精准控制元素 & 文本颜色与背景颜色反差显示

pull/221/head
这么难演 6 months ago committed by 小诺
parent
commit
f7b2349e32
  1. 61
      snowy-admin-web/src/components/ColorPicker/index.vue

61
snowy-admin-web/src/components/ColorPicker/index.vue

@ -1,5 +1,5 @@
<template>
<div class="snowy-color-picker" @click="forceResize">
<div class="snowy-color-picker" :id="id" @click="forceResize">
<color-picker v-bind="$attrs" format="hex" :pureColor="props.value" @update:pureColor="update" />
</div>
</template>
@ -7,6 +7,7 @@
<script setup>
import { ColorPicker } from 'vue3-colorpicker'
import 'vue3-colorpicker/style.css'
import tool from '@/utils/tool'
const emit = defineEmits(['update:value'])
@ -17,6 +18,8 @@
}
})
const id = tool.snowyUuid()
const forceResize = () => {
window.dispatchEvent(new Event('resize'))
}
@ -29,20 +32,70 @@
showTxt(props.value)
})
const showTxt = (val) => {
const currentColor = document.querySelector('.current-color')
// idclass
const currentColor = document.querySelector('#' + id + ' > .vc-color-wrap > .current-color')
if (currentColor) {
currentColor.textContent = val
}
//
currentColor.style.color = changeTextColor(currentColor.style.backgroundColor)
}
/**
* 改变文字颜色
* @param backgroundColor 背景色
*/
const changeTextColor = (backgroundColor) => {
const backgroundHexColor = backgroundColor.length > 7 ? convertRGBToHex(backgroundColor) : backgroundColor
let hex = backgroundHexColor
// # ,
if (hex.startsWith('#')) {
hex = hex.substring(1)
}
// 3 6
if (hex.length === 3) {
hex = [hex[0], hex[0], hex[1], hex[1], hex[2], hex[2]].join('')
}
if (hex.length !== 6) {
throw new Error('Invalid background color.' + backgroundHexColor)
}
const r = parseInt(hex.slice(0, 2), 16)
const g = parseInt(hex.slice(2, 4), 16)
const b = parseInt(hex.slice(4, 6), 16)
if ([r, g, b].some((x) => Number.isNaN(x))) {
throw new Error('Invalid background color.' + backgroundHexColor)
}
return r * 0.299 + g * 0.587 + b * 0.114 > 186 ? '#000' : '#fff'
}
const toHex = (x) => ('0' + parseInt(x).toString(16)).slice(-2)
/**
* RGB 转换为 HEX
* @param rgb RGB 颜色
*/
const convertRGBToHex = (rgb) => {
const bg = rgb.match(/^rgb\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/)
// 6
if (!bg) {
return ''
}
return '#' + toHex(bg[1]) + toHex(bg[2]) + toHex(bg[3])
}
</script>
<style lang="less">
.snowy-color-picker {
width: 100%;
.vc-color-wrap {
width: auto;
width: 100%;
}
.current-color {
color: #fff;
padding: 0 10px;
}
}

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