wszhyWx/components/u-count-down/u-count-down.vue

319 lines
8.9 KiB
Vue
Raw Blame History

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

<template>
<view class="u-countdown">
<view class="u-countdown-item" :style="[itemStyle]" v-if="showDays && (hideZeroDay || (!hideZeroDay && d != '00'))">
<view class="u-countdown-time" :style="[letterStyle]">
{{ d }}
</view>
</view>
<view
class="u-countdown-colon"
:style="{fontSize: separatorSize + 'rpx', color: separatorColor, paddingBottom: separator == 'colon' ? '4rpx' : 0}"
v-if="showDays && (hideZeroDay || (!hideZeroDay && d != '00'))"
>
{{ separator == 'colon' ? ':' : '天' }}
</view>
<view class="u-countdown-item" :style="[itemStyle]" v-if="showHours">
<view class="u-countdown-time" :style="{ fontSize: fontSize + 'rpx', color: color}">
{{ h }}
</view>
</view>
<view
class="u-countdown-colon"
:style="{fontSize: separatorSize + 'rpx', color: separatorColor, paddingBottom: separator == 'colon' ? '4rpx' : 0}"
v-if="showHours"
>
{{ separator == 'colon' ? ':' : '时' }}
</view>
<view class="u-countdown-item" :style="[itemStyle]" v-if="showMinutes">
<view class="u-countdown-time" :style="{ fontSize: fontSize + 'rpx', color: color}">
{{ i }}
</view>
</view>
<view
class="u-countdown-colon"
:style="{fontSize: separatorSize + 'rpx', color: separatorColor, paddingBottom: separator == 'colon' ? '4rpx' : 0}"
v-if="showMinutes"
>
{{ separator == 'colon' ? ':' : '分' }}
</view>
<view class="u-countdown-item" :style="[itemStyle]" v-if="showSeconds">
<view class="u-countdown-time" :style="{ fontSize: fontSize + 'rpx', color: color}">
{{ s }}
</view>
</view>
<view
class="u-countdown-colon"
:style="{fontSize: separatorSize + 'rpx', color: separatorColor, paddingBottom: separator == 'colon' ? '4rpx' : 0}"
v-if="showSeconds && separator == 'zh'"
>
</view>
</view>
</template>
<script>
/**
* countDown 倒计时
* @description 该组件一般使用于某个活动的截止时间上,通过数字的变化,给用户明确的时间感受,提示用户进行某一个行为操作。
* @tutorial https://www.uviewui.com/components/countDown.html
* @property {String Number} timestamp 倒计时,单位为秒
* @property {Boolean} autoplay 是否自动开始倒计时如果为false需手动调用开始方法。见官网说明默认true
* @property {String} separator 分隔符colon为英文冒号zh为中文默认colon
* @property {String Number} separator-size 分隔符的字体大小单位rpx默认30
* @property {String} separator-color 分隔符的颜色(默认#303133
* @property {String Number} font-size 倒计时字体大小单位rpx默认30
* @property {Boolean} show-border 是否显示倒计时数字的边框默认false
* @property {Boolean} hide-zero-day 当"天"的部分为0时隐藏该字段 默认true
* @property {String} border-color 数字边框的颜色(默认#303133
* @property {String} bg-color 倒计时数字的背景颜色(默认#ffffff
* @property {String} color 倒计时数字的颜色(默认#303133
* @property {String} height 数字高度值(宽度等同此值)设置边框时看情况是否需要设置此值单位rpx默认auto
* @property {Boolean} show-days 是否显示倒计时的"天"部分默认true
* @property {Boolean} show-hours 是否显示倒计时的"时"部分默认true
* @property {Boolean} show-minutes 是否显示倒计时的"分"部分默认true
* @property {Boolean} show-seconds 是否显示倒计时的"秒"部分默认true
* @event {Function} end 倒计时结束
* @event {Function} change 每秒触发一次,回调为当前剩余的倒计秒数
* @example <u-count-down ref="uCountDown" :timestamp="86400" :autoplay="false"></u-count-down>
*/
export default {
name: 'u-count-down',
props: {
// 倒计时的时间,秒为单位
timestamp: {
type: [Number, String],
default: 0
},
// 是否自动开始倒计时
autoplay: {
type: Boolean,
default: true
},
// 用英文冒号(colon)或者中文(zh)当做分隔符false的时候为中文"11:22"或"11时22秒"
separator: {
type: String,
default: 'colon'
},
// 分隔符的大小单位rpx
separatorSize: {
type: [Number, String],
default: 30
},
// 分隔符颜色
separatorColor: {
type: String,
default: "#303133"
},
// 字体颜色
color: {
type: String,
default: '#303133'
},
// 字体大小单位rpx
fontSize: {
type: [Number, String],
default: 30
},
// 背景颜色
bgColor: {
type: String,
default: '#fff'
},
// 数字框高度单位rpx
height: {
type: [Number, String],
default: 'auto'
},
// 是否显示数字框
showBorder: {
type: Boolean,
default: false
},
// 边框颜色
borderColor: {
type: String,
default: '#303133'
},
// 是否显示秒
showSeconds: {
type: Boolean,
default: true
},
// 是否显示分钟
showMinutes: {
type: Boolean,
default: true
},
// 是否显示小时
showHours: {
type: Boolean,
default: true
},
// 是否显示“天”
showDays: {
type: Boolean,
default: true
},
// 当"天"的部分为0时不显示
hideZeroDay: {
type: Boolean,
default: false
}
},
watch: {
// 监听时间戳的变化
timestamp(newVal, oldVal) {
// 如果倒计时间发生变化,清除定时器,重新开始倒计时
this.clearTimer();
this.start();
}
},
data() {
return {
d: '00', // 天的默认值
h: '00', // 小时的默认值
i: '00', // 分钟的默认值
s: '00', // 秒的默认值
timer: null ,// 定时器
seconds: 0, // 记录不停倒计过程中变化的秒数
};
},
computed: {
// 倒计时item的样式item为分别的时分秒部分的数字
itemStyle() {
let style = {};
if(this.height) {
style.height = this.height + 'rpx';
style.width = this.height + 'rpx';
}
if(this.showBorder) {
style.borderStyle = 'solid';
style.borderColor = this.borderColor;
style.borderWidth = '1px';
}
if(this.bgColor) {
style.backgroundColor = this.bgColor;
}
return style;
},
// 倒计时数字的样式
letterStyle() {
let style = {};
if(this.fontSize) style.fontSize = this.fontSize + 'rpx';
if(this.color) style.color = this.color;
return style;
}
},
mounted() {
// 如果自动倒计时
this.autoplay && this.timestamp && this.start();
},
methods: {
// 倒计时
start() {
// 避免可能出现的倒计时重叠情况
this.clearTimer();
if (this.timestamp <= 0) return;
this.seconds = Number(this.timestamp);
this.formatTime(this.seconds);
this.timer = setInterval(() => {
this.seconds--;
// 发出change事件
this.$emit('change', this.seconds);
if (this.seconds < 0) {
return this.end();
}
this.formatTime(this.seconds);
}, 1000);
},
// 格式化时间
formatTime(seconds) {
// 小于等于0的话结束倒计时
seconds <= 0 && this.end();
let [day, hour, minute, second] = [0, 0, 0, 0];
day = Math.floor(seconds / (60 * 60 * 24));
// 判断是否显示“天”参数,如果不显示,将天部分的值,加入到小时中
// hour为给后面计算秒和分等用的(基于显示天的前提下计算)
hour = Math.floor(seconds / (60 * 60)) - day * 24;
// showHour为需要显示的小时
let showHour = null;
if(this.showDays) {
showHour = hour;
} else {
// 如果不显示天数,将“天”部分的时间折算到小时中去
showHour = Math.floor(seconds / (60 * 60));
}
minute = Math.floor(seconds / 60) - hour * 60 - day * 24 * 60;
second = Math.floor(seconds) - day * 24 * 60 * 60 - hour * 60 * 60 - minute * 60;
// 如果小于10在前面补上一个"0"
showHour = showHour < 10 ? '0' + showHour : showHour;
minute = minute < 10 ? '0' + minute : minute;
second = second < 10 ? '0' + second : second;
day = day < 10 ? '0' + day : day;
this.d = day;
this.h = showHour;
this.i = minute;
this.s = second;
},
// 停止倒计时
end() {
this.clearTimer();
this.$emit('end', {});
},
// 清除定时器
clearTimer() {
if(this.timer) {
// 清除定时器
clearInterval(this.timer);
this.timer = null;
}
}
},
beforeDestroy() {
clearInterval(this.timer);
this.timer = null;
}
};
</script>
<style scoped lang="scss">
@import "../../libs/css/style.components.scss";
.u-countdown {
/* #ifndef APP-NVUE */
display: inline-flex;
/* #endif */
align-items: center;
}
.u-countdown-item {
@include vue-flex;
align-items: center;
justify-content: center;
padding: 2rpx;
border-radius: 6rpx;
white-space: nowrap;
transform: translateZ(0);
}
.u-countdown-time {
margin: 0;
padding: 0;
line-height: 1;
}
.u-countdown-colon {
@include vue-flex;
justify-content: center;
padding: 0 5rpx;
line-height: 1;
align-items: center;
padding-bottom: 4rpx;
}
.u-countdown-scale {
transform: scale(0.9);
transform-origin: center center;
}
</style>