Cover Zhihu Homepage

Cover content starting from the second div element on Zhihu with a color overlay based on theme
当前为 2024-10-12 提交的版本，查看最新版本。
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// ==UserScript==
// @name         Cover Zhihu Homepage
// @namespace    http://tampermonkey.net/
// @version      0.6
// @description  Cover content starting from the second div element on Zhihu with a color overlay based on theme
// @author       Snowballl11
// @license      MIT
// @match        *://www.zhihu.com/
// @match        *://www.zhihu.com/?theme=dark
// @grant        none
// ==/UserScript==

window.addEventListener('load', function() {
    // 选择 div:nth-of-type(2) 元素
    const targetDiv = document.querySelector('div:nth-of-type(2)');

    // 如果元素存在，则在其下方添加一个覆盖层
    if (targetDiv) {
        // 获取目标元素的位置信息
        const targetDivRect = targetDiv.getBoundingClientRect();

        // 创建一个新的 div 元素作为覆盖层
        const overlay = document.createElement('div');

        // 设置覆盖层样式
        overlay.style.position = 'fixed';  // 固定定位，确保覆盖层不随滚动移动
        overlay.style.top = `${targetDivRect.bottom}px`;  // 从目标元素的底部开始
        overlay.style.left = '0';          // 左侧对齐
        overlay.style.width = '100%';      // 占满整个页面宽度
        overlay.style.height = '100%';     // 高度设置为100%，覆盖可视区域及以下
        overlay.style.zIndex = '9999';     // 确保覆盖层在顶层显示
        overlay.style.pointerEvents = 'none';  // 不影响页面下方的交互操作

        // 根据当前 URL 设置背景颜色
        if (window.location.href === 'https://www.zhihu.com/?theme=dark') {
            overlay.style.backgroundColor = 'black';  // 使用黑色覆盖
        } else {
            overlay.style.backgroundColor = 'white';  // 使用白色覆盖
        }

        // 将覆盖层添加到页面中
        document.body.appendChild(overlay);

        // 当页面滚动时，确保覆盖层始终覆盖所有内容
        window.addEventListener('scroll', function() {
            // 动态调整覆盖层的高度，使其能够覆盖到页面底部
            overlay.style.height = `${document.documentElement.scrollHeight}px`;
        });
    }
});

/*
MIT License

Copyright (c) [2024] [Snowballl11]

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
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