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有些视频是以视频流的形式进行渲染的，没有视频滚动条，所以就写了24h的时间组件
1、24h的时间刻度线总宽度为12960px
2、点击24h线的某一点，获取这一点离左侧原点的距离（使用dom元素layerX和offsetLeft综合判断）
3、计算点击时线段的占比比率
4、每天的时间是86400000毫秒
5、占比比率乘以86400000就是获取的你点击的时间
代码如下：
<template>
<div class="time-main">
<div class="center-content" ref="centerRef">
<div
ref="timeRef"
class="time-line"
@click.capture="clickTimeLine($event)"
>
<template v-for="(item, i) in timeArr">
<div
:key="'a' + i"
class="base-line"
:
></div>
<div :key="i" class="base-title" :>
{{ item }}
</div>
<div
:key="'b' + i"
class="base-line"
:
></div>
<div
:key="'c' + i"
class="base-line"
:
></div>
<div
:key="'d' + i"
class="base-line"
:
></div>
<div
:key="'e' + i"
class="base-line"
:
></div>
</template>
</div>
</div>
<div class="btn-content">
<div class="left-arow" @click="clickRightMove">
<i class="el-icon-arrow-left"></i>
</div>
<div>{{ yesterdayTime | formatDateTime }}</div>
<div class="right-arow" @click="clickLeftMove">
<i class="el-icon-arrow-right"></i>
</div>
</div>
</div>
</template>
<script>
import {
compare,
exactDiv,
exactMul,
exactSub,
exactAdd,
decimalsFormat,
} from "@/util/util.js";
export default {
name: "timeLine",
// inject: ["screenNum"],
// watch: {
// screenNum: {
// handler(val) {
// console.log("切换了val==", val);
// },
// },
// },
props: {
dateArr: {
type: Array,
},
},
data() {
return {
clickCnt: 0,
leftMoveWidth: 0,
endTimeFlag: false,
timeArr: [
"00:00",
"00:10",
"00:20",
"00:30",
"00:40",
"00:50",
"01:00",
"01:10",
"01:20",
"01:30",
"01:40",
"01:50",
"02:00",
"02:10",
"02:20",
"02:30",
"02:40",
"02:50",
"03:00",
"03:10",
"03:20",
"03:30",
"03:40",
"03:50",
"04:00",
"04:10",
"04:20",
"04:30",
"04:40",
"04:50",
"05:00",
"05:10",
"05:20",
"05:30",
"05:40",
"05:60",
"06:00",
"06:10",
"06:20",
"06:30",
"06:40",
"06:50",
"07:00",
"07:10",
"07:20",
"07:30",
"07:40",
"07:50",
"08:00",
"08:10",
"08:20",
"08:30",
"08:40",
"08:50",
"09:00",
"09:10",
"09:20",
"09:30",
"09:40",
"09:50",
"10:00",
"10:10",
"10:20",
"10:30",
"10:40",
"10:50",
"11:00",
"11:10",
"11:20",
"11:30",
"11:40",
"11:50",
"12:00",
"12:10",
"12:20",
"12:30",
"12:40",
"12:50",
"13:00",
"13:10",
"13:20",
"13:30",
"13:40",
"13:50",
"14:00",
"14:10",
"14:20",
"14:30",
"14:40",
"14:50",
"15:00",
"15:10",
"15:20",
"15:30",
"15:40",
"15:50",
"16:00",
"16:10",
"16:20",
"16:30",
"16:40",
"16:50",
"17:00",
"17:10",
"17:20",
"17:30",
"17:40",
"17:50",
"18:00",
"18:10",
"18:20",
"18:30",
"18:40",
"18:50",
"19:00",
"19:10",
"19:20",
"19:30",
"19:40",
"19:50",
"20:00",
"20:10",
"20:20",
"20:30",
"20:40",
"20:50",
"21:00",
"21:10",
"21:20",
"21:30",
"21:40",
"21:50",
"22:00",
"22:10",
"22:20",
"22:30",
"22:40",
"22:50",
"23:00",
"23:10",
"23:20",
"23:30",
"23:40",
"23:50",
],
switchWidthNum: 540,
yesterdayTime: 0,
clickTimeVal: 0,
};
},
mounted() {
// this.handleWidthFn();
this.dealScrollMove();
// console.log("mounted==", this.dateArr);
},
methods: {
dealScrollMove() {
if (this.$refs.centerRef.offsetWidth >= 540) {
this.switchWidthNum = 540;
} else if (this.$refs.centerRef.offsetWidth >= 360) {
this.switchWidthNum = 360;
} else if (this.$refs.centerRef.offsetWidth >= 270) {
this.switchWidthNum = 270;
} else if (this.$refs.centerRef.offsetWidth >= 180) {
this.switchWidthNum = 180;
} else {
this.switchWidthNum = 90;
}
let time0 = new Date(new Date().toLocaleDateString()).getTime(); //获取当日0点时间戳
let time1 = new Date().getTime(); // 当前时间
let sumTimeWidth = 12960;
let dayTimeSum = 86400000; //一天的毫秒数
// if (this.clickTimeVal) {
// time1 = this.clickTimeVal;
// console.log("进==", time1);
// console.log("进=2=", this.clickTimeVal);
// }
if (this.dateArr.length > 0) {
time1 = this.dateArr[0];
time0 = exactSub(time0, dayTimeSum);
console.log("进==", this.dateArr);
console.log("进=2=", this.clickTimeVal);
}
let timeSub = exactSub(time1, time0);
// console.log("timeSub=", timeSub);
if (this.dateArr.length > 0) {
this.yesterdayTime = this.dateArr[0];
this.clickTimeVal = this.dateArr[0];
} else {
this.yesterdayTime = exactSub(time0, dayTimeSum);
}
let dayPer = exactDiv(timeSub, dayTimeSum); //一天的百分比
console.log("exactDiv(timeSub, dayTimeSum)==", this.yesterdayTime);
// console.log("dayPer==", dayPer);
let scrollWidth = exactMul(sumTimeWidth, dayPer);
// console.log("scrollWidth=333333=", scrollWidth);
// console.log("scrollWidth=33333555553=", this.switchWidthNum);
// 除以switchWidthNum 获取点击的个数
let switchClickCnt = exactDiv(scrollWidth, this.switchWidthNum);
// console.log("switchClickCnt==", switchClickCnt);
this.clickCnt = parseInt(switchClickCnt) - 1;
this.clickLeftMove();
// console.log("点击的数量1===", this.clickCnt);
},
handleWidthFn() {
this.$nextTick(() => {
if (this.$refs.centerRef.offsetWidth >= 540) {
this.switchWidthNum = 540;
} else if (this.$refs.centerRef.offsetWidth >= 360) {
this.switchWidthNum = 360;
} else if (this.$refs.centerRef.offsetWidth >= 270) {
this.switchWidthNum = 270;
} else if (this.$refs.centerRef.offsetWidth >= 180) {
this.switchWidthNum = 180;
} else {
this.switchWidthNum = 90;
}
});
},
clickTimeLine(event) {
// console.log("event==", event);
// console.log("event=layerX==", event.layerX);
// console.log("event=layerX=target===", event.target.offsetLeft);
let sumTimeWidth = 12960;
let dayTimeSum = 86400000; //一天的毫秒数
let time0 = new Date(new Date().toLocaleDateString()).getTime(); //获取当日0点时间戳
let yesterdayTime = exactSub(time0, dayTimeSum);
let timePointNum = 0;
// className: "time-line"
if (event.target.className == "time-line") {
timePointNum = event.layerX;
} else {
timePointNum = exactAdd(event.layerX, event.target.offsetLeft);
}
let timemove = exactAdd(timePointNum, this.leftMoveWidth);
let timePer = exactDiv(timemove, sumTimeWidth); // 点击的百分比
let clickTimeNum = exactMul(dayTimeSum, timePer); //
let trueTimeNum = exactAdd(clickTimeNum, yesterdayTime); // time
let fomretTime = parseInt(trueTimeNum);
this.clickTimeVal = new Date(fomretTime).getTime();
this.$emit(
"handleClickTimeLineFn",
new Date(fomretTime)
);
// console.log("trueTimeNum==", trueTimeNum);
// console.log("fomretTime==", fomretTime);
// console.log("new Date==", new Date(fomretTime));
},
clickLeftMove() {
// console.log("点击的数量==2=", this.clickCnt);
this.handleWidthFn();
// console.log("this.$refs.centerRef==", this.$refs.centerRef);
// console.log("centerRef=offsetWidth=", this.$refs.centerRef.offsetWidth);
// console.log("centerRef=clientWidth=", this.$refs.centerRef.clientWidth);
if (this.endTimeFlag) {
return;
}
this.clickCnt++;
this.leftMoveWidth = this.clickCnt * this.switchWidthNum;
let letWidth = this.clickCnt * this.switchWidthNum + "px";
// console.log(this.clickCnt);
// console.log("this.$refs.timeRef==", this.$refs.timeRef);
if (this.leftMoveWidth + this.$refs.centerRef.offsetWidth > 12960) {
letWidth = 12960 - this.$refs.centerRef.offsetWidth + "px";
this.endTimeFlag = true;
} else {
this.endTimeFlag = false;
}
this.$refs.timeRef.style.transform = "translateX(-" + letWidth + ")";
this.$refs.timeRef.style.transition = "all 0.5s";
},
clickRightMove() {
this.handleWidthFn();
if (this.clickCnt > 0) {
this.clickCnt--;
}
this.leftMoveWidth = this.clickCnt * this.switchWidthNum;
let letWidth = this.clickCnt * this.switchWidthNum + "px";
// console.log(this.clickCnt);
// console.log("this.$refs.timeRef==", this.$refs.timeRef);
if (this.endTimeFlag) {
this.endTimeFlag = false;
}
this.$refs.timeRef.style.transform = "translateX(-" + letWidth + ")";
this.$refs.timeRef.style.transition = "all 0.5s";
},
},
};
</script>
<style scoped lang="scss">
.time-main {
position: relative;
width: 100%;
margin: auto;
overflow: hidden;
// display: flex;
// border: 1px solid red;
}
.center-content {
width: calc(100% - 30px);
margin-left: 30px;
overflow: hidden;
}
.btn-content {
width: calc(100% - 30px);
margin-left: 30px;
display: flex;
justify-content: space-between;
color: #fff;
}
.time-line {
position: relative;
font-size: 12px;
/* left: -7357.15px; */
// left: 30px;
height: 19px;
width: 12960px;
border-bottom: 1px solid rgb(90, 90, 90);
margin: 0px;
padding: 0px;
transition: left 0.9s ease 0s;
color: #fff;
z-index: 10;
&:hover {
cursor: pointer;
}
.base-title {
position: absolute;
left: 4px;
bottom: 3px;
color: #fff;
z-index: -1;
}
}
.base-line {
position: absolute;
width: 1px;
height: 4px;
bottom: 0px;
background-color: rgb(90, 90, 90);
z-index: 9;
}
.left-arow {
// position: absolute;
// left: 2%;
color: #fff;
font-size: 20px;
}
.right-arow {
// position: absolute;
// right: 2%;
color: #fff;
font-size: 20px;
}
</style>读到这里，这篇“vue视频时间进度条组件如何使用”文章已经介绍完毕，想要掌握这篇文章的知识点还需要大家自己动手实践使用过才能领会，如果想了解更多相关内容的文章，欢迎关注亿速云行业资讯频道。
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