// ==UserScript==
// @name         Close Current Window
// @namespace    http://tampermonkey.net/
// @version      1.2
// @description  在任意页面添加红色关闭按钮，点击后立即关闭当前窗口
// @author       Jack
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // 创建按钮
    const button = document.createElement('button');
    button.textContent = "X";
    button.title = "点击立即关闭当前窗口";

    // 按钮样式 - 红色警示风格
    button.style.position = "fixed";
    button.style.top = "15%";
    button.style.right = "1%";
    button.style.transform = "translateY(-50%)";
    button.style.padding = "8px 12px";
    button.style.fontSize = "14px";
    button.style.fontWeight = "bold";
    button.style.backgroundColor = "#ff4444";
    button.style.color = "#fff";
    button.style.border = "none";
    button.style.borderRadius = "6px";
    button.style.cursor = "pointer";
    button.style.zIndex = "10000";
    button.style.boxShadow = "0 2px 5px rgba(0,0,0,0.3)";
    button.style.transition = "all 0.2s ease";
    button.style.fontFamily = "Arial, sans-serif";
    
    // 添加悬停效果
    button.addEventListener('mouseover', () => {
        button.style.backgroundColor = "#ff0000";
        button.style.boxShadow = "0 3px 8px rgba(0,0,0,0.4)";
    });
    
    button.addEventListener('mouseout', () => {
        button.style.backgroundColor = "#ff4444";
        button.style.boxShadow = "0 2px 5px rgba(0,0,0,0.3)";
    });
    
    // 添加点击效果
    button.addEventListener('mousedown', () => {
        button.style.backgroundColor = "#cc0000";
        button.style.transform = "translateY(-50%) scale(0.95)";
    });
    
    button.addEventListener('mouseup', () => {
        button.style.backgroundColor = "#ff0000";
        button.style.transform = "translateY(-50%) scale(1)";
    });

    // 点击事件 - 立即关闭当前窗口
    button.addEventListener('click', (e) => {
        e.preventDefault();
        e.stopPropagation();
        
        // 立即尝试关闭窗口
        try {
            // 首先尝试直接关闭
            window.close();
            
            // 如果1秒后窗口还没关闭，尝试备用方法
            setTimeout(() => {
                if (!window.closed) {
                    try {
                        // 备用方法1：如果是通过window.open()打开的窗口
                        if (window.opener) {
                            window.close();
                        } 
                        // 备用方法2：重定向到空白页
                        else {
                            window.location.href = "about:blank";
                            // 如果重定向成功，按钮移除
                            button.remove();
                        }
                    } catch (err) {
                        console.log("关闭窗口尝试失败:", err);
                    }
                }
            }, 1000);
            
        } catch (err) {
            console.log("关闭窗口出错:", err);
            // 如果出错，尝试重定向到空白页
            window.location.href = "about:blank";
        }
    });

    // 挂载按钮到页面
    document.body.appendChild(button);
    
    // 确保按钮在页面加载完成后始终存在
    window.addEventListener('load', () => {
        if (!document.body.contains(button)) {
            document.body.appendChild(button);
        }
    });
})();