给侧边栏添加春节倒计时卡片

原文出自 梦爱吃鱼

效果展示

修改步骤

1、新建JS文件

在 [Blog]\themes\anzhiyu\source\static\ 路径下新建 countdown.js ，没有 \static\ 文件夹就在 [Blog]\themes\anzhiyu\source\ 路径下新建一个。

添加以下内容

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: () => {
                start.setDate(start.getDate() - start.getDay());
                end.setDate(end.getDate() - end.getDay() + 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、新建widget.yml文件

路径下新建 [Blog]\source\_data\widget.yml 文件，并添加以下内容

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、在主题配置文件中引入JS

inject:
  head:

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

4、补充

不同年份的春节可以在 countdown.js 文件中修改

    const config = {
        targetDate: "2025-01-29",
        targetName: "春节",