MediaWiki:Common.js：修订间差异

2025年8月8日 (五) 12:35的版本

/* 这里的任何JavaScript将为所有用户在每次页面加载时加载。 */
// console.log("Hello World!");

/* CSS模板 */
(function() {
  var importCssDivs = document.querySelectorAll('div.import-css');

  importCssDivs.forEach(function(div) {
    var cssContent = div.textContent || div.innerText;

    if (cssContent) {
      var styleTag = document.createElement('style');
      styleTag.type = 'text/css';
	  styleTag.appendChild(document.createTextNode(cssContent));

      document.head.appendChild(styleTag);
    }
  });
})();

/* 落叶特效 */
(function(){
    if (!document.getElementById('snow-style')) {
        const style = document.createElement('style');
        style.id = 'snow-style';
        style.textContent = `
            @keyframes snowRise {
                0% { 
                    transform: translateY(0) rotate(0deg); 
                    bottom: -130px;
                }
                100% { 
                    transform: translateY(-100vh) rotate(9000deg); 
                    bottom: calc(100% + 130px);
                }
            }
            .snowflake {
                position: fixed;
                bottom: -130px;
                z-index: 9999;
                pointer-events: none;
                user-select: none;
                animation-timing-function: linear;
                will-change: transform;
            }
        `;
        document.head.appendChild(style);
    }

    function createSnowflake() {
        const snowflake = document.createElement('div');
        snowflake.className = 'snowflake';
        const icons = ['🎂','🍩','🍬','🎂'];
        snowflake.innerHTML = icons[Math.floor(Math.random() * 4)];
        const size = Math.random() * 16 + 8;
        const left = Math.random() * 100;
        const duration = Math.random() * 8 + 8;
        snowflake.style.cssText = `
            font-size: ${size}px;
            left: ${left}%;
            animation: snowRise ${duration}s linear forwards;
            opacity: ${Math.random() * 0.5 + 0.5};
            color: hsl(${Math.random() * 360}, 100%, 90%);
        `;

        // 确保动画结束后移除元素
        const removeSnowflake = () => {
            snowflake.remove();
            snowflake.removeEventListener('animationend', removeSnowflake);
        };
        snowflake.addEventListener('animationend', removeSnowflake);

        document.body.appendChild(snowflake);
    }

    let interval = setInterval(createSnowflake, 250);

    document.addEventListener('visibilitychange', function() {
        if (document.hidden) {
            clearInterval(interval);
        } else {
            interval = setInterval(createSnowflake, 250);
        }
    });

    // 初始创建雪花
    for (let i = 0; i < 10; i++) {
        createSnowflake();
    }
})();