直播商城系统源码,环形进度条组件
<template>
<div class="content" ref="box">
<svg
:id="idStr"
style="transform: rotate(-90deg)"
:width="width"
:height="width"
xmlns="http://www.w3.org/2000/svg"
>
<linearGradient :id="`gradient-${id}`" gradientUnits="userSpaceOnUse">
<stop
v-for="(item, index) in gradientsColor"
:key="index"
:offset="item.offset"
:stop-color="item.color"
/>
</linearGradient>
<circle
:r="(width-radius)/2"
:cy="width/2"
:cx="width/2"
:stroke-width="radius"
:stroke="backgroundColor"
fill="none"
/>
<circle
v-if="gradientsColorShow"
ref="$bar"
:r="(width-radius)/2"
:cy="width/2"
:cx="width/2"
:stroke="gradientsColor ? `url(#gradient-${id})` : barColor"
:stroke-width="radius"
:stroke-linecap="isRound ? 'round' : 'square'"
:stroke-dasharray="(width-radius)*3.14"
:stroke-dashoffset="dashoffsetValue"
fill="none"
/>
</svg>
<div class="center_text">
<p v-if="!$slots.default" class="title">{{progress}}%</p>
<slot></slot>
</div>
</div>
</template>
<script>
// import _ from "lodash";
export default {
props: {
widthPresent: {
type: Number,
default: 1
},
gradientsColor: {
type: [Boolean, Array],
default: false
},
radius: {
type: [Number, String],
default: 20
}, // 进度条厚度
progress: {
type: [Number, String],
default: 20
}, // 进度条百分比
barColor: {
type: String,
default: "#1890ff"
}, // 进度条颜色
backgroundColor: {
type: String,
default: "rgba(0,0,0,0.3)"
}, // 背景颜色
isAnimation: {
// 是否是动画效果
type: Boolean,
default: true
},
isRound: {
// 是否是圆形画笔
type: Boolean,
default: true
},
id: {
// 组件的id,多组件共存时使用
type: [String, Number],
default: 1
},
duration: {
// 整个动画时长
type: [String, Number],
default: 1000
},
delay: {
// 延迟多久执行
type: [String, Number],
default: 200
},
timeFunction: {
// 动画缓动函数
type: String,
default: "cubic-bezier(0.99, 0.01, 0.22, 0.94)"
}
},
data() {
return {
width: 200,
idStr: "",
oldValue: 0
};
},
computed: {
gradientsColorShow: function() {
return true;
},
dashoffsetValue: function() {
const { isAnimation, width, radius, progress, oldValue } = this;
return isAnimation
? ((width - radius) * 3.14 * (100 - oldValue)) / 100
: ((width - radius) * 3.14 * (100 - progress)) / 100;
}
},
watch: {
id: function() {
this.idStr = `circle_progress_keyframes_${this.id || 1}`;
},
progress: function(newData, oldData) {
if (newData !== oldData) {
this.oldValue = oldData;
this.setAnimation();
}
}
},
mounted() {
this.idStr = `circle_progress_keyframes_${this.id || 1}`;
let self = this;
this.setCircleWidth();
this.setAnimation();
// 此处不能使用window.onresize
window.addEventListener("resize", function() {
self.setCircleWidth();
self.setAnimation(self);
});
},
methods: {
setCircleWidth() {
const { widthPresent } = this;
this.$nextTick(() => {
let box = this.$refs.box;
let width = box.clientWidth * widthPresent;
let height = box.clientHeight * widthPresent;
let cW = width > height ? height : width;
this.width = cW;
})
},
setAnimation() {
let self = this;
if (self.isAnimation) {
// 重复定义判断
if (document.getElementById(self.idStr)) {
self.$refs.$bar.classList.remove(`circle_progress_bar${self.id}`);
}
this.$nextTick(() => {
this.startAnimation();
});
}
},
startAnimation() {
// 生成动画样式文件
let style = document.createElement("style");
style.id = this.idStr;
style.type = "text/css";
style.innerHTML = `
@keyframes circle_progress_keyframes_name_${this.id} {
from {stroke-dashoffset: ${((this.width - this.radius) *
3.14 *
(100 - this.oldValue)) /
100}px;}
to {stroke-dashoffset: ${((this.width - this.radius) *
3.14 *
(100 - this.progress)) /
100}px;}}
.circle_progress_bar${
this.id
} {animation: circle_progress_keyframes_name_${this.id} ${
this.duration
}ms ${this.delay}ms ${this.timeFunction} forwards;}`;
// 添加新样式文件
document.getElementsByTagName("head")[0].appendChild(style);
// 往svg元素中添加动画class
this.$refs.$bar.classList.add(`circle_progress_bar${this.id}`);
}
}
};
</script>
<style scoped>
.content {
height: 100%;
display: flex;
justify-content: center;
align-items: center;
}
.center_text {
position: absolute;
font-size: 16px;
font-weight: bold;
}
</style>
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标签:进度条,default,width,源码,radius,组件,progress,type,id From: https://www.cnblogs.com/yunbaomengnan/p/16984894.html