Base64编解码工具，支持位置记忆、夜间模式和拖动功能
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// ==UserScript==
// @name Linux.do Base64 script
// @namespace http://tampermonkey.net/
// @version 1.5.3
// @description Base64编解码工具，支持位置记忆、夜间模式和拖动功能
// @author Xavier
// @match https://linux.do/*
// @match https://clochat.com/*
// @grant GM_setClipboard
// @grant GM_getValue
// @grant GM_setValue
// ==/UserScript==
(function() {
'use strict';
// 创建主容器
const container = document.createElement('div');
container.id = 'b64Container';
Object.assign(container.style, {
position: 'fixed',
zIndex: 9999,
borderRadius: '8px',
fontFamily: 'inherit',
cursor: 'move'
});
// 初始化位置
const savedPosition = GM_getValue('b64Position', null);
if (savedPosition) {
container.style.left = `${savedPosition.x}px`;
container.style.top = `${savedPosition.y}px`;
container.style.bottom = 'auto';
container.style.right = 'auto';
} else {
container.style.bottom = '20px';
container.style.right = '20px';
container.style.left = 'auto';
container.style.top = 'auto';
}
// 主触发器
const trigger = document.createElement('div');
trigger.innerHTML = 'Base64';
Object.assign(trigger.style, {
padding: '8px 16px',
borderRadius: '6px',
fontSize: '14px',
cursor: 'pointer',
transition: 'all 0.2s',
backgroundColor: 'var(--primary)',
color: 'var(--secondary)',
boxShadow: '0 2px 5px rgba(0,0,0,0.2)',
opacity: '0.5',
});
// 添加鼠标悬停效果
trigger.onmouseover = () => {
trigger.style.opacity = '1';
};
trigger.onmouseout = () => {
trigger.style.opacity = '0.5';
};
// 拖动功能
let isDragging = false;
let offsetX = 0;
let offsetY = 0;
container.addEventListener('mousedown', (e) => {
isDragging = true;
const rect = container.getBoundingClientRect();
offsetX = e.clientX - rect.left;
offsetY = e.clientY - rect.top;
});
document.addEventListener('mousemove', (e) => {
if (isDragging) {
const x = e.clientX - offsetX;
const y = e.clientY - offsetY;
container.style.left = `${x}px`;
container.style.top = `${y}px`;
container.style.right = 'auto';
container.style.bottom = 'auto';
}
});
document.addEventListener('mouseup', () => {
if (isDragging) {
const rect = container.getBoundingClientRect();
GM_setValue('b64Position', {
x: rect.left,
y: rect.top
});
}
isDragging = false;
});
// 下拉菜单容器
const menu = document.createElement('div');
menu.style.cssText = `
position: absolute;
bottom: 100%;
right: 0;
width: 140px;
background: var(--secondary);
border-radius: 6px;
box-shadow: 0 4px 12px rgba(0,0,0,0.15);
margin-bottom: 8px;
opacity: 0;
transform: translateY(10px);
transition: all 0.25s ease;
pointer-events: none;
overflow: hidden;
`;
// 创建菜单项
const createMenuItem = (text) => {
const item = document.createElement('div');
item.textContent = text;
item.style.cssText = `
padding: 10px 16px;
font-size: 13px;
cursor: pointer;
color: var(--primary);
transition: all 0.2s;
text-align: left;
line-height: 1.4;
`;
// 根据按钮文本设置不同圆角
if (text === '解析本页 Base64') {
item.style.borderRadius = '6px 6px 0 0';
} else if (text === '文本转 Base64') {
item.style.borderRadius = '0 0 6px 6px';
}
item.onmouseenter = () => {
item.style.background = 'rgba(0,0,0,0.08)';
};
item.onmouseleave = () => {
item.style.background = '';
};
return item;
};
let decodeItem = createMenuItem('解析本页 Base64');
const encodeItem = createMenuItem('文本转 Base64');
menu.append(decodeItem, encodeItem);
container.append(trigger, menu);
// 菜单切换逻辑
const toggleMenu = (show) => {
menu.style.opacity = show ? 1 : 0;
menu.style.transform = show ? 'translateY(0)' : 'translateY(10px)';
menu.style.pointerEvents = show ? 'all' : 'none';
};
// 主题适配
const updateTheme = () => {
const isDark = document.body.getAttribute('data-theme') === 'dark';
trigger.style.backgroundColor = isDark ? 'var(--primary)' : 'var(--secondary)';
trigger.style.color = isDark ? 'var(--secondary)' : 'var(--primary)';
trigger.style.opacity = '0.5';
};
// 统一提示函数
function showNotification(message, isSuccess) {
const notification = document.createElement('div');
notification.className = 'b64-copy-notification';
notification.textContent = message;
notification.style.background = isSuccess ? 'rgba(0, 200, 0, 0.9)' : 'rgba(200, 0, 0, 0.9)';
document.body.appendChild(notification);
setTimeout(() => {
notification.remove();
}, 2500);
}
// 复制提示样式
const notificationStyle = document.createElement('style');
notificationStyle.textContent = `
.b64-copy-notification {
position: fixed;
top: 20px;
left: 50%;
transform: translateX(-50%);
background: rgba(0, 200, 0, 0.9);
color: white;
padding: 10px 20px;
border-radius: 4px;
font-size: 14px;
z-index: 10000;
animation: fadeOut 2s forwards;
animation-delay: 0.5s;
}
@keyframes fadeOut {
from { opacity: 1; }
to { opacity: 0; }
}
`;
document.head.appendChild(notificationStyle);
// 解码功能
let isParsed = false;
let originalTexts = {};
const decodeBase64 = () => {
const base64Regex = /([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?/g;
if (isParsed) {
Object.entries(originalTexts).forEach(([wrapperId, text]) => {
const wrapper = document.getElementById(wrapperId);
if (wrapper) {
const textNode = document.createTextNode(text);
wrapper.replaceWith(textNode);
}
});
originalTexts = {};
isParsed = false;
decodeItem.textContent = '解析本页 Base64';
showNotification('已恢复原始内容', true);
return;
}
let decodeSuccess = false;
document.querySelectorAll('div.post, div.cooked').forEach(container => {
const walker = document.createTreeWalker(container, NodeFilter.SHOW_TEXT);
while (walker.nextNode()) {
const node = walker.currentNode;
if (node.textContent.length > 20) {
const decodedContent = node.textContent.replace(base64Regex, match => {
try {
const decoded = decodeURIComponent(escape(atob(match)));
if (decoded !== match) {
decodeSuccess = true;
return `<span class="b64-decoded" style="color: #FF7F28; background: rgba(255, 127, 40, 0.1); cursor: pointer; transition: all 0.2s; padding: 1px 2px; border-radius: 3px;">${decoded}</span>`;
}
return match;
} catch (e) {
return match;
}
});
if (decodedContent !== node.textContent) {
const wrapper = document.createElement('span');
const wrapperId = `b64-${Date.now()}-${Math.random().toString(36).substring(2, 11)}`;
wrapper.id = wrapperId;
wrapper.innerHTML = decodedContent;
wrapper.querySelectorAll('.b64-decoded').forEach(span => {
span.onclick = (e) => {
GM_setClipboard(span.textContent);
showNotification('已复制到剪贴板', true);
e.target.style.opacity = '0.7';
setTimeout(() => e.target.style.opacity = '', 500);
};
});
originalTexts[wrapperId] = node.textContent;
node.replaceWith(wrapper);
}
}
}
});
if (decodeSuccess) {
isParsed = true;
decodeItem.textContent = '恢复本页 Base64';
showNotification('解析成功', true);
} else {
showNotification('解析失败，未发现有效Base64', false);
}
};
// 编码功能
const encodeBase64 = () => {
const text = prompt('请输入要编码的文本:');
if (text) {
try {
const encoded = btoa(unescape(encodeURIComponent(text)));
GM_setClipboard(encoded);
showNotification('编码成功已复制', true);
} catch (e) {
showNotification('编码失败：无效字符', false);
}
} else {
showNotification('编码已取消', false);
}
};
// 事件绑定
trigger.addEventListener('click', (e) => {
e.stopPropagation();
toggleMenu(menu.style.opacity === '0');
});
decodeItem.addEventListener('click', () => {
decodeBase64();
toggleMenu(false);
});
encodeItem.addEventListener('click', () => {
encodeBase64();
toggleMenu(false);
});
// 初始化
document.body.appendChild(container);
updateTheme();
// 主题变化监听
new MutationObserver(updateTheme).observe(document.body, {
attributes: true,
attributeFilter: ['data-theme']
});
// 点击外部关闭
document.addEventListener('click', (e) => {
if (!container.contains(e.target)) toggleMenu(false);
});
// 监听前进和后退事件，重置解析状态
function resetParseState() {
isParsed = false;
originalTexts = {};
decodeItem.textContent = '解析本页 Base64';
}
window.addEventListener('popstate', resetParseState);
// 全局样式
const style = document.createElement('style');
style.textContent = `
.b64-decoded:hover {
background: rgba(255, 127, 40, 0.2) !important;
}
.b64-decoded:active {
background: rgba(255, 127, 40, 0.3) !important;
}
`;
document.head.appendChild(style);
// 确保原有复制提示兼容性
function showCopyNotification() {
showNotification('已复制到剪贴板', true);
}
})();