fengpingle/components/uni-countdown/uni-countdowns.vue

<template>
	<view class="uni-countdown">
		<text v-if="showDay" :style="{ borderColor: borderColor, color: color, backgroundColor: backgroundColor }" class="uni-countdown__number">{{ d }}</text>
		<text v-if="showDay" :style="{ color: splitorColor }" class="uni-countdown__splitor">天</text>
		<text :style="{ borderColor: borderColor, color: color, backgroundColor: backgroundColor }" class="uni-countdown__number">{{ h }}</text>
		<text :style="{ color: splitorColor }" class="uni-countdown__splitor">{{ showColon ? ':' : '时' }}</text>
		<text :style="{ borderColor: borderColor, color: color, backgroundColor: backgroundColor }" class="uni-countdown__number">{{ i }}</text>
		<text :style="{ color: splitorColor }" class="uni-countdown__splitor">{{ showColon ? ':' : '分' }}</text>
		<text :style="{ borderColor: borderColor, color: color, backgroundColor: backgroundColor }" class="uni-countdown__number">{{ s }}</text>
		<text v-if="!showColon" :style="{ color: splitorColor }" class="uni-countdown__splitor">秒</text>
	</view>
</template>
<script>
export default {
	name: 'UniCountdown',
	props: {
		showDay: {
			type: Boolean,
			default: true
		},
		showColon: {
			type: Boolean,
			default: true
		},
		backgroundColor: {
			type: String,
			default: '#FFFFFF'
		},
		borderColor: {
			type: String,
			default: '#000000'
		},
		color: {
			type: String,
			default: '#000000'
		},
		splitorColor: {
			type: String,
			default: '#000000'
		},
		day: {
			type: Number,
			default: 0
		},
		hour: {
			type: Number,
			default: 0
		},
		minute: {
			type: Number,
			default: 0
		},
		second: {
			type: Number,
			default: 0
		},
		index: {
			type: Number,
			default: 0
		}
	},
	data() {
		return {
			timer: null,
			syncFlag: false,
			d: '00',
			h: '00',
			i: '00',
			s: '00',
			leftTime: 0,
			seconds: 0
		};
	},
	watch: {
		day(val) {
			this.changeFlag();
		},
		hour(val) {
			this.changeFlag();
		},
		minute(val) {
			this.changeFlag();
		},
		second(val) {
			this.changeFlag();
		}
	},
	created: function(e) {
		this.startData();
	},
	beforeDestroy() {
		clearInterval(this.timer);
	},
	methods: {
		toSeconds(day, hours, minutes, seconds) {
			return day * 60 * 60 * 24 + hours * 60 * 60 + minutes * 60 + seconds;
		},
		timeUp() {
			clearInterval(this.timer);
			this.$emit('timeup');
		},
		countDown() {
			let seconds = this.seconds;
			let [day, hour, minute, second] = [0, 0, 0, 0];
			if (seconds > 0) {
				day = Math.floor(seconds / (60 * 60 * 24));
				hour = Math.floor(seconds / (60 * 60)) - day * 24;
				minute = Math.floor(seconds / 60) - day * 24 * 60 - hour * 60;
				second = Math.floor(seconds) - day * 24 * 60 * 60 - hour * 60 * 60 - minute * 60;
			} else {
				this.timeUp();
			}
			if (day < 10) {
				day = '0' + day;
			}
			if (hour < 10) {
				hour = '0' + hour;
			}
			if (minute < 10) {
				minute = '0' + minute;
			}
			if (second < 10) {
				second = '0' + second;
			}
			this.d = day;
			this.h = hour;
			this.i = minute;
			this.s = second;
		},
		startData() {
			this.seconds = this.toSeconds(this.day, this.hour, this.minute, this.second);
			if (this.seconds <= 0) {
				return;
			}
			this.countDown();
			this.timer = setInterval(() => {
				this.seconds--;
				if (this.seconds < 0) {
					this.timeUp();
					return;
				}
				this.countDown();
				if (this.d === '00' && this.h === '00' && this.i === '00' && this.s === '00') {
					this.$emit('timeover', this.index);
				}
			}, 1000);
		},
		changeFlag() {
			if (!this.syncFlag) {
				this.seconds = this.toSeconds(this.day, this.hour, this.minute, this.second);
				this.startData();
				this.syncFlag = true;
			}
		}
	}
};
</script>
<style lang="scss" scoped>
@import '~@/uni.scss';
$countdown-height: 48rpx;
$countdown-width: 52rpx;

.uni-countdown {
	/* #ifndef APP-NVUE */
	display: flex;
	/* #endif */
	flex-direction: row;
	justify-content: flex-start;
	padding: 2rpx 0;
}

.uni-countdown__splitor {
	/* #ifndef APP-NVUE */
	display: flex;
	/* #endif */
	justify-content: center;
	line-height: $countdown-height;
	padding: 5rpx;
	font-size: $uni-font-size-sm;
}

.uni-countdown__number {
	/* #ifndef APP-NVUE */
	display: flex;
	/* #endif */
	justify-content: center;
	align-items: center;
	width: $countdown-width;
	height: $countdown-height;
	line-height: $countdown-height;
	margin: 5rpx;
	text-align: center;
	font-size: 24rpx;
	border-radius: 10rpx;
}
</style>