src/progress.vue
<template> <div class="el-progress" :class="[ 'el-progress--' + type, status ? 'is-' + status : '', { 'el-progress--without-text': !showText, 'el-progress--text-inside': textInside, } ]" role="progressbar" :aria-valuenow="percentage" aria-valuemin="0" aria-valuemax="100" > <div class="el-progress-bar" v-if="type === 'line'"> <div class="el-progress-bar__outer" :style="{height: strokeWidth + 'px'}"> <div class="el-progress-bar__inner" :style="barStyle"> <div class="el-progress-bar__innerText" v-if="showText && textInside">{{percentage}}%</div> </div> </div> </div> <div class="el-progress-circle" :style="{height: width + 'px', width: width + 'px'}" v-else> <svg viewBox="0 0 100 100"> <path class="el-progress-circle__track" :d="trackPath" stroke="#e5e9f2" :stroke-width="relativeStrokeWidth" fill="none"></path> <path class="el-progress-circle__path" :d="trackPath" stroke-linecap="round" :stroke="stroke" :stroke-width="relativeStrokeWidth" fill="none" :style="circlePathStyle"></path> </svg> </div> <div class="el-progress__text" v-if="showText && !textInside" :style="{fontSize: progressTextSize + 'px'}"> <template v-if="!status">{{percentage}}%</template> <template v-else> <slot v-if="status === 'text'"></slot> <i v-else :class="iconClass"></i> </template> </div> </div> </template> <script> export default { name: 'ElProgress', props: { // 进度条类型 string line/circle/dashboard line type: { type: String, default: 'line', validator: val => ['line', 'circle'].indexOf(val) > -1 }, // 百分比(必填) number 0-100 0 percentage: { type: Number, default: 0, required: true, validator: val => val >= 0 && val <= 100 }, // 进度条当前状态 string success/exception/warning status: { type: String, validator: val => ['text', 'success', 'exception'].indexOf(val) > -1 }, // 进度条的宽度,单位 px number — 6 strokeWidth: { type: Number, default: 6 }, // 进度条显示文字内置在进度条内(只在 type=line 时可用) boolean — false textInside: { type: Boolean, default: false }, // 环形进度条画布宽度(只在 type 为 circle 或 dashboard 时可用) number 126 width: { type: Number, default: 126 }, // 是否显示进度条文字内容 boolean — true showText: { type: Boolean, default: true }, // 进度条背景色(会覆盖 status 状态颜色) string/function/array color: { type: String, default: '' } }, computed: { // bar样式 barStyle() { const style = {}; style.width = this.percentage + '%'; style.backgroundColor = this.color; return style; }, relativeStrokeWidth() { return (this.strokeWidth / this.width * 100).toFixed(1); }, trackPath() { const radius = parseInt(50 - parseFloat(this.relativeStrokeWidth) / 2, 10); return `M 50 50 m 0 -${radius} a ${radius} ${radius} 0 1 1 0 ${radius * 2} a ${radius} ${radius} 0 1 1 0 -${radius * 2}`; }, perimeter() { const radius = 50 - parseFloat(this.relativeStrokeWidth) / 2; return 2 * Math.PI * radius; }, circlePathStyle() { const perimeter = this.perimeter; return { strokeDasharray: `${perimeter}px,${perimeter}px`, strokeDashoffset: (1 - this.percentage / 100) * perimeter + 'px', transition: 'stroke-dashoffset 0.6s ease 0s, stroke 0.6s ease' }; }, stroke() { let ret; if (this.color) { ret = this.color; } else { switch (this.status) { case 'success': ret = '#13ce66'; break; case 'exception': ret = '#ff4949'; break; default: ret = '#20a0ff'; } } return ret; }, // icon类名 iconClass() { if (this.type === 'line') { return this.status === 'success' ? 'el-icon-circle-check' : 'el-icon-circle-close'; } else { return this.status === 'success' ? 'el-icon-check' : 'el-icon-close'; } }, // 文字大小 progressTextSize() { return this.type === 'line' ? 12 + this.strokeWidth * 0.4 : this.width * 0.111111 + 2 ; } } }; </script>