给主题侧边栏添加倒计时

前言

很多人都加了这个倒计时的小组件,我参考无名大佬的样式也给主题添加了这个组件。理论是所有Butterfly类主题都可以添加这个组件,但是我没有试过

这里是基于安知鱼主题实现的,其它主题可能需要修改一下JS代码中Css的变量,样式具体看本站侧边栏

使用方法

1. 创建JS文件

在博客目录的 source 文件夹下创建 countdown.js 文件(也可以在source文件夹下另外新建文件夹)。

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const CountdownTimer = (() => {
const config = {
targetDate: "2025-01-29",
targetName: "春节",
units: {
day: { text: "今日", divider: 1, unit: "小时" },
week: { text: "本周", divider: 24, unit: "天" },
month: { text: "本月", divider: 24, unit: "天" },
year: { text: "本年", divider: 24, unit: "天" }
}
};

function getTimeUnit(unit) {
const now = new Date();
const start = new Date(now.setHours(0, 0, 0, 0));
const end = new Date(now.setHours(23, 59, 59, 999));

if (unit === 'day') {
const currentHour = new Date().getHours();
const remaining = 24 - currentHour;
const percentage = (currentHour / 24) * 100;

return {
name: config.units[unit].text,
remaining: remaining,
percentage: percentage.toFixed(2),
unit: config.units[unit].unit
};
}

const ranges = {
week: () => {
const currentDay = start.getDay();
const mondayOffset = currentDay === 0 ? -6 : 1 - currentDay;
start.setDate(start.getDate() + mondayOffset);
end.setDate(start.getDate() + 6);
},
month: () => {
start.setDate(1);
end.setMonth(end.getMonth() + 1, 0);
},
year: () => {
start.setMonth(0, 1);
end.setMonth(11, 31);
}
};
ranges[unit]?.();

const total = unit === "day" ? 24 : Math.floor((end - start) / 86400000) + 1;
const passed = Math.floor((now - start) / (3600000 * config.units[unit].divider));
const percentage = (passed / total) * 100;

return {
name: config.units[unit].text,
remaining: total - passed,
percentage: percentage.toFixed(2),
unit: config.units[unit].unit
};
}

function updateCountdown() {
const elements = ['eventName', 'eventDate', 'daysUntil', 'countRight']
.map(id => document.getElementById(id));

if (elements.some(el => !el)) return;

const [eventName, eventDate, daysUntil, countRight] = elements;
const timeData = Object.keys(config.units).reduce((acc, unit) => ({...acc, [unit]: getTimeUnit(unit)}), {});
const daysRemaining = Math.round((new Date(config.targetDate) - new Date().setHours(0,0,0,0)) / 86400000);

eventName.textContent = config.targetName;
eventDate.textContent = config.targetDate;
daysUntil.textContent = daysRemaining;
countRight.innerHTML = Object.entries(timeData)
.map(([_, item]) => `
<div class="cd-count-item">
<div class="cd-item-name">${item.name}</div>
<div class="cd-item-progress">
<div class="cd-progress-bar" style="width: ${item.percentage}%; opacity: ${item.percentage/100}"></div>
<span class="cd-percentage ${item.percentage >= 46 ? 'cd-many' : ''}">${item.percentage}%</span>
<span class="cd-remaining ${item.percentage >= 60 ? 'cd-many' : ''}">
<span class="cd-tip">还剩</span>${item.remaining}<span class="cd-tip">${item.unit}</span>
</span>
</div>
</div>
`).join('');
}

function injectStyles() {
const styles = `
.card-countdown .item-content {
display: flex;
}
.cd-count-left {
position: relative;
display: flex;
flex-direction: column;
margin-right: 0.8rem;
line-height: 1.5;
align-items: center;
justify-content: center;
}
.cd-count-left .cd-text {
font-size: 14px;
}
.cd-count-left .cd-name {
font-weight: bold;
font-size: 18px;
}
.cd-count-left .cd-time {
font-size: 30px;
font-weight: bold;
color: var(--anzhiyu-main);
}
.cd-count-left .cd-date {
font-size: 12px;
opacity: 0.6;
}
.cd-count-left::after {
content: "";
position: absolute;
right: -0.8rem;
width: 2px;
height: 80%;
background-color: var(--anzhiyu-main);
opacity: 0.5;
}
.cd-count-right {
flex: 1;
margin-left: .8rem;
display: flex;
flex-direction: column;
justify-content: space-between;
}
.cd-count-item {
display: flex;
flex-direction: row;
align-items: center;
height: 24px;
}
.cd-item-name {
font-size: 14px;
margin-right: 0.8rem;
white-space: nowrap;
}
.cd-item-progress {
position: relative;
display: flex;
flex-direction: row;
align-items: center;
justify-content: space-between;
height: 100%;
width: 100%;
border-radius: 8px;
background-color: var(--anzhiyu-background);
overflow: hidden;
}
.cd-progress-bar {
height: 100%;
border-radius: 8px;
background-color: var(--anzhiyu-main);
}
.cd-percentage,
.cd-remaining {
position: absolute;
font-size: 12px;
margin: 0 6px;
transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}
.cd-many {
color: #fff;
}
.cd-remaining {
opacity: 0;
transform: translateX(10px);
}
.card-countdown .item-content:hover .cd-remaining {
transform: translateX(0);
opacity: 1;
}
.card-countdown .item-content:hover .cd-percentage {
transform: translateX(-10px);
opacity: 0;
}
`;

const styleSheet = document.createElement("style");
styleSheet.textContent = styles;
document.head.appendChild(styleSheet);
}

let timer;
const start = () => {
injectStyles();
updateCountdown();
timer = setInterval(updateCountdown, 600000);
};

['pjax:complete', 'DOMContentLoaded'].forEach(event => document.addEventListener(event, start));
document.addEventListener('pjax:send', () => timer && clearInterval(timer));

return { start, stop: () => timer && clearInterval(timer) };
})();

2. 添加组件配置

source/_data/widget.yml 中添加以下配置:

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top:
- class_name: card-countdown
id_name:
name:
icon:
html: |
<div class="cd-count-left">
<span class="cd-text">距离</span>
<span class="cd-name" id="eventName"></span>
<span class="cd-time" id="daysUntil"></span>
<span class="cd-date" id="eventDate"></span>
</div>
<div id="countRight" class="cd-count-right"></div>

3. 引入JS文件

_config.anzhiyu.yml 主题配置文件的 inject 配置项的 bottom 中引入 JS 文件:

仅供参考 static是我在source文件夹下创建的文件夹 具体根据实际情况修改!!

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inject:
bottom:
- <script src="/static/countdown.js"></script>

4. 配置目标日期

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const config = {
targetDate: "2025-01-29", // 目标日期
targetName: "春节", // 名称
...
}

结语

如果文章内容有错误之处,欢迎在评论区指出!