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100 lines
1.7 KiB
100 lines
1.7 KiB
<template>
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<view><slot :time="time" :remain="timeData.remain" :day="timeData.day" :hour="timeData.hour" :minute="timeData.minute" :second="timeData.second" /></view>
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</template>
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<script>
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// https://ext.dcloud.net.cn/plugin?id=1687
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export default {
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props: {
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// 倒计时时长（单位：毫秒）
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time: {
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type: Number,
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default: 0
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},
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// 是否自动
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'autoStart': {
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type: Boolean,
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default: false
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}
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},
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data() {
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return {
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timer: null,
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timeData: {
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remain: 0,
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day: 0,
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hour: 0,
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minute: 0,
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second: 0
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}
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};
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},
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watch: {
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time() {
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this.reset()
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}
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},
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methods: {
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// 设置timeData
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updateTimeData() {
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let t = this.timeData.remain;
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this.timeData.day = Math.floor(t / 1000 / 60 / 60 / 24);
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this.timeData.hour = Math.floor((t / 1000 / 60 / 60) % 24);
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this.timeData.minute = Math.floor((t / 1000 / 60) % 60);
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this.timeData.second = Math.floor((t / 1000) % 60);
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},
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// 开启倒计时
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startTimer() {
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if (this.timer) {
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clearInterval(this.timer);
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}
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if(this.timeData.remain < 1000) {
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return
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}
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this.timer = setInterval(() => {
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this.timeData.remain -= 1000;
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this.updateTimeData()
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if (this.timeData.remain < 1000) {
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this.pause()
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this.$emit('finish');
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}
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}, 1000);
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},
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// 重置倒计时
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reset() {
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this.timeData.remain = this.time;
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this.updateTimeData();
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if(this.autoStart) {
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this.start()
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}
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},
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// 暂停倒计时
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pause() {
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if(this.timer) {
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clearInterval(this.timer);
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this.timer = null
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}
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},
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// 开始倒计时
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start() {
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if(this.timer) {
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return
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}
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this.startTimer();
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}
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},
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mounted() {
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this.reset();
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},
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beforeDestroy() {
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this.pause()
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}
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};
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</script>
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