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Vue

<template>
<view :class="rootClass" :style="rootStyle">
<view v-if="!type || type === 'ring' || type === 'circle-ring'" class="wd-loading__body">
<view class="wd-loading__svg" :style="`background-image: url(${svg});`"></view>
</view>
<view v-if="type === 'circle-outline' || type === 'outline'" class="wd-loading__body">
<view class="wd-loading__svg" :style="`background-image: url(${svg});`"></view>
</view>
</view>
</template>
<script lang="ts">
export default {
name: 'wd-loading',
options: {
virtualHost: true,
addGlobalClass: true,
styleIsolation: 'shared'
}
}
</script>
<script lang="ts" setup>
import { computed, onBeforeMount, ref, watch } from 'vue'
import base64 from '../common/base64'
import { gradient, context, objToStyle, addUnit } from '../common/util'
import type { LoadingType } from './type'
const svgDefineId = context.id++
const svgDefineId1 = context.id++
const svgDefineId2 = context.id++
const icon = {
outline(color = '#4D80F0') {
return `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 42 42"><defs><linearGradient x1="100%" y1="0%" x2="0%" y2="0%" id="${svgDefineId}"><stop stop-color="#FFF" offset="0%" stop-opacity="0"/><stop stop-color="#FFF" offset="100%"/></linearGradient></defs><g fill="none" fill-rule="evenodd"><path d="M21 1c11.046 0 20 8.954 20 20s-8.954 20-20 20S1 32.046 1 21 9.954 1 21 1zm0 7C13.82 8 8 13.82 8 21s5.82 13 13 13 13-5.82 13-13S28.18 8 21 8z" fill="${color}"/><path d="M4.599 21c0 9.044 7.332 16.376 16.376 16.376 9.045 0 16.376-7.332 16.376-16.376" stroke="url(#${svgDefineId}) " stroke-width="3.5" stroke-linecap="round"/></g></svg>`
},
ring(color = '#4D80F0', intermediateColor = '#a6bff7') {
return `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><linearGradient id="${svgDefineId1}" gradientUnits="userSpaceOnUse" x1="50" x2="50" y2="180"><stop offset="0" stop-color="${color}"></stop> <stop offset="1" stop-color="${intermediateColor}"></stop></linearGradient> <path fill="url(#${svgDefineId1})" d="M20 100c0-44.1 35.9-80 80-80V0C44.8 0 0 44.8 0 100s44.8 100 100 100v-20c-44.1 0-80-35.9-80-80z"></path> <linearGradient id="${svgDefineId2}" gradientUnits="userSpaceOnUse" x1="150" y1="20" x2="150" y2="180"><stop offset="0" stop-color="#fff" stop-opacity="0"></stop> <stop offset="1" stop-color="${intermediateColor}"></stop></linearGradient> <path fill="url(#${svgDefineId2})" d="M100 0v20c44.1 0 80 35.9 80 80s-35.9 80-80 80v20c55.2 0 100-44.8 100-100S155.2 0 100 0z"></path> <circle cx="100" cy="10" r="10" fill="${color}"></circle></svg>`
}
}
interface Props {
customStyle?: string
customClass?: string
type?: LoadingType
color?: string
size?: string | number
}
const props = withDefaults(defineProps<Props>(), {
customStyle: '',
customClass: '',
type: 'ring',
color: '#4D80F0',
size: '32px'
})
const svg = ref<string>('')
const intermediateColor = ref<string>('')
const iconSize = ref<string | number>('32px')
watch(
() => props.size,
(newVal) => {
iconSize.value = addUnit(newVal)
},
{
deep: true,
immediate: true
}
)
watch(
() => props.type,
() => {
buildSvg()
},
{
deep: true,
immediate: true
}
)
const rootStyle = computed(() => {
const style: Record<string, string | number> = {
width: iconSize.value,
height: iconSize.value
}
return `${objToStyle(style)}; ${props.customStyle}`
})
const rootClass = computed(() => {
return `wd-loading ${props.customClass}`
})
onBeforeMount(() => {
intermediateColor.value = gradient(props.color, '#ffffff', 2)[1]
buildSvg()
})
function buildSvg() {
const { type, color } = props
let adaptType = 'ring'
// 2.2.0 版本向下兼容 circle-outline 和 circle-ring;
if (type === 'circle-outline') {
adaptType = 'outline'
} else if (type === 'outline') {
adaptType = 'outline'
} else if (type === 'circle-ring') {
adaptType = 'ring'
}
const svgStr = `"data:image/svg+xml;base64,${base64(
adaptType === 'ring' ? icon[adaptType](color, intermediateColor.value) : icon[adaptType](color)
)}"`
svg.value = svgStr
}
</script>
<style lang="scss" scoped>
@import './index.scss';
</style>