// ==UserScript==
// @name 极简划词搜索
// @description 超小尺寸悬浮窗，支持划词搜索、复制、打开链接；拖拽链接/图片保存；预定义六组高亮样式（可自定义），动态添加关键词增量高亮，无闪烁；自动高亮默认关闭，加粗样式默认注释；工具栏默认手动隐藏；可配置显示的搜索引擎；可调整按钮顺序；可全局开启/关闭高亮功能；极致性能优化
// @icon https://www.baidu.com/favicon.ico
// @namespace http://tampermonkey.net/
// @version 2.4.3
// @author ddrwin
// @license MIT
// @match *://*/*
// @grant GM_setValue
// @grant GM_getValue
// @note 2026.2.7 V1.0 初始版本
// @note 2026.2.8 V1.1 增加打开按钮，优化样式
// @note 2026.2.9 V1.2 增加拖拽搜索功能，修复状态残留bug
// @note 2026.2.10 V1.3 修复点击复制按钮误触拖拽搜索的问题
// @note 2026.2.11 V1.4 增加链接拖拽打开功能
// @note 2026.2.12 V1.5 增加图片拖拽打开功能
// @note 2026.2.13 V1.6 增加小红书搜索引擎
// @note 2026.2.14 V1.7 修复操作后未清除文本选中的问题
// @note 2026.2.15 V1.8 性能优化：缓存元素检测结果，减少DOM操作，调整搜索引擎顺序
// @note 2026.2.16 V1.9 性能大优化：使用Element.closest、raf节流、文档片段构建、快速空选返回
// @note 2026.2.17 V2.0 修复拖拽搜索误触及按钮点击错乱：仅当鼠标按下在选中区域内才触发拖拽，按钮事件改用直接绑定
// @note 2026.2.21 V2.0.2 优化URL识别逻辑，兼容不带协议的域名路径，增强特殊字符支持（基于v2.0.2beta1改进）
// @note 2026.2.26 V2.0.3 添加图片拖拽下载保存
// @note 2026.2.26 V2.0.4 改进图片下载兼容性：增加跨域处理和多级回退，控制台输出提示
// @note 2026.2.28 V2.0.5 图片保存时自动以当前时间重命名，时间格式调整为 YYYY.MM.DD~HH·MM·SS，添加详细注释
// @note 2026.3.1 V2.1 事件注册统一管理；搜索引擎列表配置化，方便未来扩展（如 Bing）
// @note 2026.3.2 V2.1.1 增强图片下载：增加 CORS 代理重试机制、更完善的请求头，提升跨域图片保存成功率
// @note 2026.3.2 V2.1.2 工具模块拆分（UrlUtils）、使用可选链和空值合并简化代码、代理请求封装为独立函数
// @note 2026.3.3 V2.2.0 新增高亮按钮，支持页面内关键词高亮（最多5词，红/绿/蓝/紫/橙字黄底）；增加工具栏消失模式开关（auto/manual）；高亮操作异步分批处理，解决卡顿；可配置消失延迟
// @note 2026.3.3 V2.2.1 采用用户提供的五组预定义关键词及样式；高亮更新改为增量模式，已有高亮保持不变，消除闪烁；动态添加关键词按五色循环分配样式
// @note 2026.3.3 V2.2.2 修复预定义关键词未自动高亮的问题；增加 MutationObserver 监听页面变化，动态内容自动高亮
// @note 2026.3.3 V2.2.3 增加自动高亮开关（默认关闭）；加粗样式默认注释；工具栏消失模式默认改为手动；优化 MutationObserver 防抖
// @note 2026.3.3 V2.2.4 重新排列高亮组颜色（科普/硬件/人工智能颜色互换）；修复自动高亮开关未完全生效的问题；更换高亮图标
// @note 2026.3.3 V2.2.5 再次修复自动高亮开关：仅在开启时加载预定义关键词；清空所有分组关键词数组；更换太阳图标
// @note 2026.3.3 V2.2.6 分组名称改为颜色描述；再次修正太阳图标；点击高亮后工具栏立即消失
// @note 2026.3.3 V2.2.7 更换高亮图标为用户指定版本；交换复制和高亮按钮位置
// @note 2026.3.3 V2.2.8 增加工具栏偏移开关：可设置左移/下移多少个图标位置（基于按钮实际尺寸）
// @note 2026.3.3 V2.2.9 修复偏移量在后续划词中失效的问题（强制重排）；高亮按钮放回复制左侧
// @note 2026.3.5 V2.3.0 彻底修复偏移量失效问题：计算位置前先设置 display:flex；优化代码结构；重新调整高亮组顺序
// @note 2026.3.7 V2.3.6 移除百度域名特殊逻辑，搜索引擎全局统一配置；重新排列高亮颜色顺序（红/绿/蓝/菊红/紫/深绿）；代码全面注释
// @note 2026.3.7 V2.3.7 改用 GM_setValue/GM_getValue 实现跨域配置共享；彻底移除域名过滤
// @note 2026.3.7 V2.3.8 高亮添加防抖；设置面板边界优化；常量分组；代码精简
// @note 2026.3.7 V2.3.9 修复今日头条搜索页设置面板样式丢失问题：使用 Shadow DOM 封装面板，实现样式隔离；同步高亮颜色名称
// @note 2026.3.7 V2.4.0 新增必应、抖音、新浪搜索引擎；调整顺序为必应、百度、新浪、头条、抖音、小红书；设置面板双列布局；保存按钮改为 #008373 白字
// @note 2026.3.7 V2.4.1 调整按钮顺序：当选中文本为 URL 时，“打开”按钮置于最左侧（高亮和复制之前）
// @note 2026.3.7 V2.4.2 增加“启用高亮功能”开关；代码优化：合并重复样式、精简函数、缓存正则、减少代码量
// @note 2026.4.8 V2.4.3 添加知乎和 GitHub 搜索引擎；设置面板自适应双列布局自动换行
// @downloadURL none
// ==/UserScript==
(function() {
'use strict';
// ==================== 常量定义 ====================
const CONFIG = {
PROXY_URL: 'https://cors-anywhere.herokuapp.com/',
OPEN_WINDOW_AS_FALLBACK: false,
TOOLBAR_HIDE_MODE: 'manual',
HIDE_DELAY: 1000,
AUTO_HIGHLIGHT_ENABLED: false,
OFFSET_LEFT_ICON_COUNT: 0,
OFFSET_DOWN_ICON_COUNT: 0
};
const HIGHLIGHT_GROUPS = [
{ name: "红底白字", keywords: [], style: "background-color:#DE0422; color:#FFFFFF; /* font-weight:bold; */" },
{ name: "绿底白字", keywords: [], style: "background-color:#66CC00; color:#FFFFFF; /* font-weight:bold; */" },
{ name: "蓝底白字", keywords: [], style: "background-color:#32A7FF; color:#FFFFFF; /* font-weight:bold; */" },
{ name: "橙红底白字", keywords: [], style: "background-color:#FF9933; color:#FFFFFF; /* font-weight:bold; */" },
{ name: "紫底白字", keywords: [], style: "background-color:#6633FF; color:#FFFFFF; /* font-weight:bold; */" },
{ name: "深绿底白字", keywords: [], style: "background-color:#008373; color:#FFFFFF; /* font-weight:bold; */" }
];
const ALL_SEARCH_ENGINES = [
{ name: '必应', icon: '🔍', url: 'https://www.bing.com/search?q=%s' },
{ name: '百度', icon: '🔍', url: 'https://www.baidu.com/s?wd=%s' },
{ name: '知乎', icon: '🔍', url: 'https://www.zhihu.com/search?type=content&q=%s' },
{ name: 'GitHub', icon: '🔍', url: 'https://github.com/search?q=%s&type=repositories' },
{ name: 'IT之家', icon: '🔍', url: 'https://www.ithome.com/search/%s.html' },
{ name: '头条', icon: '🔍', url: 'https://www.toutiao.com/search/?keyword=%s' },
{ name: '抖音', icon: '🔍', url: 'https://www.douyin.com/search/%s' },
{ name: '小红书', icon: '🔍', url: 'https://www.xiaohongshu.com/search_result?keyword=%s' }
];
// 从全局存储加载配置
let enabledEngineNames = (() => {
const saved = GM_getValue('search_engines_config', null);
return saved && Array.isArray(saved) ? saved : ALL_SEARCH_ENGINES.map(e => e.name);
})();
let buttonOrder = GM_getValue('button_order_config', 'copy-first');
let highlightEnabled = GM_getValue('highlight_enabled', true);
const saveSearchEngineConfig = (v) => GM_setValue('search_engines_config', v);
const saveButtonOrderConfig = (v) => GM_setValue('button_order_config', v);
const saveHighlightEnabled = (v) => GM_setValue('highlight_enabled', v);
const getEnabledEngines = () => ALL_SEARCH_ENGINES.filter(e => enabledEngineNames.includes(e.name));
// ==================== 高亮管理 ====================
let highlights = [], nextStyleIndex = 0, highlightTimer, highlightDebounceTimer;
let observer, observerDebounceTimer;
const escapeRegExp = s => s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
const isNodeHighlighted = node => node.parentElement?.closest('.search-highlight') !== null;
function applyHighlightsAsync() {
if (highlightTimer) clearTimeout(highlightTimer);
if (!highlights.length) return;
const textNodes = [];
const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT, {
acceptNode: node => {
if (node.parentElement && ['SCRIPT', 'STYLE', 'TEXTAREA', 'INPUT'].includes(node.parentElement.tagName))
return NodeFilter.FILTER_REJECT;
return isNodeHighlighted(node) ? NodeFilter.FILTER_REJECT : NodeFilter.FILTER_ACCEPT;
}
});
while (walker.nextNode()) textNodes.push(walker.currentNode);
const regex = new RegExp(`(${highlights.map(h => escapeRegExp(h.keyword)).join('|')})`, 'gi');
let idx = 0;
const BATCH_SIZE = 50;
const process = () => {
const end = Math.min(idx + BATCH_SIZE, textNodes.length);
for (let i = idx; i < end; i++) {
const node = textNodes[i], text = node.textContent;
const matches = [];
let match;
while ((match = regex.exec(text))) matches.push({ index: match.index, keyword: match[0], length: match[0].length });
if (!matches.length) continue;
const frag = document.createDocumentFragment();
let lastPos = 0;
for (const m of matches) {
const h = highlights.find(h => h.keyword.toLowerCase() === m.keyword.toLowerCase());
if (!h) continue;
const style = HIGHLIGHT_GROUPS[h.styleIndex % HIGHLIGHT_GROUPS.length]?.style || HIGHLIGHT_GROUPS[0].style;
if (m.index > lastPos) frag.appendChild(document.createTextNode(text.substring(lastPos, m.index)));
const span = document.createElement('span');
span.className = 'search-highlight';
span.style.cssText = style;
span.textContent = m.keyword;
frag.appendChild(span);
lastPos = m.index + m.length;
}
if (lastPos < text.length) frag.appendChild(document.createTextNode(text.substring(lastPos)));
node.parentNode.replaceChild(frag, node);
}
idx = end;
if (idx < textNodes.length) highlightTimer = setTimeout(process, 0);
else highlightTimer = null;
};
highlightTimer = setTimeout(process, 0);
}
const addDynamicHighlight = keyword => {
if (!keyword) return;
const idx = highlights.findIndex(h => h.keyword === keyword);
if (idx !== -1) {
highlights.splice(idx, 1);
highlights.push({ keyword, styleIndex: highlights[idx]?.styleIndex });
} else {
highlights.push({ keyword, styleIndex: nextStyleIndex++ % HIGHLIGHT_GROUPS.length });
}
if (highlightDebounceTimer) clearTimeout(highlightDebounceTimer);
highlightDebounceTimer = setTimeout(() => { applyHighlightsAsync(); highlightDebounceTimer = null; }, 50);
};
if (CONFIG.AUTO_HIGHLIGHT_ENABLED) {
HIGHLIGHT_GROUPS.forEach((g, i) => g.keywords.forEach(k => highlights.push({ keyword: k, styleIndex: i })));
applyHighlightsAsync();
}
// MutationObserver
(() => {
observer = new MutationObserver(() => {
if (observerDebounceTimer) clearTimeout(observerDebounceTimer);
observerDebounceTimer = setTimeout(() => { applyHighlightsAsync(); observerDebounceTimer = null; }, 200);
});
observer.observe(document.body, { childList: true, subtree: true, characterData: true });
})();
// ==================== 辅助函数 ====================
const getFormattedDateTime = () => {
const d = new Date();
return `${d.getFullYear()}.${(d.getMonth()+1).toString().padStart(2,'0')}.${d.getDate().toString().padStart(2,'0')}~${d.getHours().toString().padStart(2,'0')}·${d.getMinutes().toString().padStart(2,'0')}·${d.getSeconds().toString().padStart(2,'0')}`;
};
// ==================== 图标 ====================
const ICONS = {
copy: 'data:image/svg+xml;base64,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',
search: 'data:image/svg+xml;base64,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',
openLink: 'data:image/svg+xml;base64,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',
save: 'data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"%3E%3Cpath fill="%23333" d="M8 12L4 8h3V4h2v4h3l-4 4zM2 14h12v-2H2v2z"/%3E%3C/svg%3E',
highlight: 'data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjI0IiBoZWlnaHQ9IjI0Ij48cGF0aCBkPSJNMTIgMjEuMzVsLTEuNDUtMS4zMkM1LjQgMTUuMzYgMiAxMi4yOCAyIDguNSAyIDUuNDIgNC40MiAzIDcuNSAzYzEuNzQgMCAzLjQxLjgxIDQuNSAyLjA5QzEzLjA5IDMuODEgMTQuNzYgMyAxNi41IDMgMTkuNTggMyAyMiA1LjQyIDIyIDguNWMwIDMuNzgtMy40IDYuODYtOC41NSAxMS41NEwxMiAyMS4zNXoiIGZpbGw9IiNlNzRjM2MiLz48L3N2Zz4=',
settings: 'data:image/svg+xml;base64,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'
};
ALL_SEARCH_ENGINES.forEach(e => e.icon = ICONS.search);
// ==================== 设置面板（Shadow DOM）====================
let settingsPanelHost, settingsPanelRoot;
const createSettingsPanel = () => {
if (settingsPanelHost) return;
settingsPanelHost = document.createElement('div');
settingsPanelHost.id = 'custom-search-settings-host';
settingsPanelHost.style.cssText = 'all:initial;position:fixed;z-index:1000000;left:0;top:0;width:0;height:0;';
settingsPanelRoot = settingsPanelHost.attachShadow({ mode: 'open' });
const panelDiv = document.createElement('div');
panelDiv.style.cssText = `
position:fixed; background:#fff; border-radius:8px; padding:16px;
box-shadow:0 4px 12px rgba(0,0,0,0.15); border:1px solid #e0e0e0;
font-size:14px; color:#333; display:none; min-width:260px;
font-family:system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
`;
const title = document.createElement('div');
title.style.cssText = 'font-weight:bold; margin-bottom:12px; border-bottom:1px solid #eee; padding-bottom:4px;';
title.textContent = '搜索引擎设置';
panelDiv.appendChild(title);
const listDiv = document.createElement('div');
listDiv.style.cssText = 'margin-bottom:12px; display:grid; grid-template-columns:repeat(2,1fr); gap:6px 12px;';
ALL_SEARCH_ENGINES.forEach(engine => {
const label = document.createElement('label');
label.style.cssText = 'display:flex; align-items:center; cursor:pointer; white-space:nowrap;';
const cb = document.createElement('input');
cb.type = 'checkbox';
cb.value = engine.name;
cb.checked = enabledEngineNames.includes(engine.name);
cb.style.cssText = 'margin-right:4px; vertical-align:middle;';
label.append(cb, document.createTextNode(engine.name));
listDiv.appendChild(label);
});
panelDiv.appendChild(listDiv);
const addCheckbox = (text, checked) => {
const div = document.createElement('div');
div.style.cssText = 'margin-bottom:8px; border-top:1px solid #eee; padding-top:8px;';
const label = document.createElement('label');
label.style.cssText = 'display:flex; align-items:center; cursor:pointer;';
const cb = document.createElement('input');
cb.type = 'checkbox';
cb.checked = checked;
cb.style.cssText = 'margin-right:6px; vertical-align:middle;';
label.append(cb, document.createTextNode(text));
div.appendChild(label);
panelDiv.appendChild(div);
return cb;
};
const highlightCb = addCheckbox('启用高亮功能', highlightEnabled);
const orderCb = addCheckbox('高亮按钮在前（默认复制在前）', buttonOrder === 'highlight-first');
const btnDiv = document.createElement('div');
btnDiv.style.cssText = 'display:flex; justify-content:flex-end; gap:8px;';
const saveBtn = document.createElement('button');
saveBtn.textContent = '保存';
saveBtn.style.cssText = 'background:#008373; color:#fff; border:none; border-radius:4px; padding:6px 12px; cursor:pointer; font-size:13px;';
saveBtn.addEventListener('click', () => {
const checkboxes = panelDiv.querySelectorAll('input[type="checkbox"]');
enabledEngineNames = [...checkboxes].slice(0, ALL_SEARCH_ENGINES.length).filter(cb => cb.checked).map(cb => cb.value);
saveSearchEngineConfig(enabledEngineNames);
highlightEnabled = checkboxes[ALL_SEARCH_ENGINES.length].checked;
saveHighlightEnabled(highlightEnabled);
buttonOrder = checkboxes[ALL_SEARCH_ENGINES.length + 1].checked ? 'highlight-first' : 'copy-first';
saveButtonOrderConfig(buttonOrder);
panelDiv.style.display = 'none';
});
const cancelBtn = document.createElement('button');
cancelBtn.textContent = '取消';
cancelBtn.style.cssText = 'background:#f0f0f0; color:#333; border:1px solid #ccc; border-radius:4px; padding:6px 12px; cursor:pointer; font-size:13px;';
cancelBtn.addEventListener('click', () => panelDiv.style.display = 'none');
btnDiv.append(saveBtn, cancelBtn);
panelDiv.appendChild(btnDiv);
settingsPanelRoot.appendChild(panelDiv);
document.body.appendChild(settingsPanelHost);
};
const showSettingsPanel = () => {
createSettingsPanel();
if (!toolbar) return;
const panelDiv = settingsPanelRoot.querySelector('div');
if (!panelDiv) return;
const cbs = panelDiv.querySelectorAll('input[type="checkbox"]');
ALL_SEARCH_ENGINES.forEach((e, i) => cbs[i].checked = enabledEngineNames.includes(e.name));
cbs[ALL_SEARCH_ENGINES.length].checked = highlightEnabled;
cbs[ALL_SEARCH_ENGINES.length + 1].checked = buttonOrder === 'highlight-first';
const rect = toolbar.getBoundingClientRect();
let left = rect.left, top = rect.bottom + 5;
const panelWidth = 280;
if (left + panelWidth > innerWidth) left = innerWidth - panelWidth - 5;
if (top + 200 > innerHeight) top = rect.top - 205;
left = Math.max(5, left);
top = Math.max(5, top);
panelDiv.style.cssText += `;left:${left}px;top:${top}px;display:block;`;
};
// ==================== 工具栏样式与变量 ====================
const TOOLBAR_STYLE = `position:fixed; z-index:999999; background:#fff; border-radius:8px; padding:2px 4px; box-shadow:0 2px 6px rgba(0,0,0,0.1); display:flex; gap:2px; font-size:12px; color:#333; pointer-events:auto; border:1px solid #e0e0e0; align-items:center; line-height:1.2; flex-wrap:nowrap; white-space:nowrap;`;
const BUTTON_STYLE = `background:transparent; border:none; color:#333; cursor:pointer; padding:4px 4px; border-radius:6px; font-size:12px; display:flex; align-items:center; gap:3px; transition:background 0.1s, color 0.1s; white-space:nowrap;`;
const ICON_STYLE = `width:13px; height:13px; display:inline-block; vertical-align:middle; transition:filter 0.1s;`;
const SEPARATOR_STYLE = `width:1px; height:18px; background:#ddd; margin:0 2px;`;
const GREEN_FILTER = 'invert(48%) sepia(79%) saturate(2476%) hue-rotate(86deg) brightness(118%) contrast(119%)';
let toolbar, hideTimeout;
const initToolbar = () => {
toolbar = document.createElement('div');
toolbar.id = 'custom-search-toolbar';
toolbar.style.cssText = TOOLBAR_STYLE;
toolbar.addEventListener('mousedown', e => e.preventDefault());
toolbar.addEventListener('mouseup', e => e.stopPropagation());
toolbar.addEventListener('click', e => e.target.closest('button')?._handler?.());
toolbar.addEventListener('mouseenter', () => clearTimeout(hideTimeout));
toolbar.addEventListener('mouseleave', () => CONFIG.TOOLBAR_HIDE_MODE === 'auto' && scheduleHide());
document.body.appendChild(toolbar);
};
const buildToolbar = (text, mode = 'text') => {
if (!toolbar) initToolbar();
toolbar.innerHTML = '';
const frag = document.createDocumentFragment();
let btns = [];
if (mode === 'image') {
btns.push({ icon: ICONS.save, text: '保存', handler: () => { downloadImage(text); getSelection().empty(); hideToolbar(); } });
} else {
const isDomain = UrlUtils.isDomain(text);
if (isDomain) btns.push({ icon: ICONS.openLink, text: '打开', handler: () => { open(UrlUtils.makeUrl(text)); getSelection().empty(); hideToolbar(); } });
const copyBtn = { icon: ICONS.copy, text: '复制', handler: () => { copyText(text); getSelection().empty(); hideToolbar(); } };
if (highlightEnabled) {
const highlightBtn = { icon: ICONS.highlight, text: '高亮', handler: () => { const kw = getSelection().toString().trim(); if (kw) addDynamicHighlight(kw); hideToolbar(); } };
buttonOrder === 'highlight-first' ? btns.push(highlightBtn, copyBtn) : btns.push(copyBtn, highlightBtn);
} else {
btns.push(copyBtn);
}
getEnabledEngines().forEach(e => btns.push({ icon: e.icon, text: e.name, handler: () => { open(e.url.replace('%s', encodeURIComponent(text))); getSelection().empty(); hideToolbar(); } }));
btns.push({ icon: ICONS.settings, text: '', title: '设置', handler: showSettingsPanel });
}
btns.forEach((btn, i) => {
if (i > 0) {
const sep = document.createElement('span');
sep.style.cssText = SEPARATOR_STYLE;
frag.appendChild(sep);
}
const el = document.createElement('button');
el.style.cssText = BUTTON_STYLE;
if (btn.title) el.title = btn.title;
el.innerHTML = `
${btn.text}`;
el._handler = btn.handler;
el.addEventListener('mouseenter', e => { e.currentTarget.style.background = '#f0f0f0'; e.currentTarget.style.color = '#5FE382'; e.currentTarget.querySelector('img').style.filter = GREEN_FILTER; });
el.addEventListener('mouseleave', e => { e.currentTarget.style.background = 'transparent'; e.currentTarget.style.color = '#333'; e.currentTarget.querySelector('img').style.filter = 'none'; });
frag.appendChild(el);
});
toolbar.appendChild(frag);
};
// ==================== 复制 ====================
const copyText = text => {
if (navigator.clipboard) navigator.clipboard.writeText(text).catch(() => fallbackCopy(text));
else fallbackCopy(text);
};
const fallbackCopy = text => {
const ta = document.createElement('textarea');
ta.value = text;
ta.style.cssText = 'position:fixed;opacity:0;';
document.body.appendChild(ta);
ta.select();
document.execCommand('copy');
document.body.removeChild(ta);
};
// ==================== 显示/隐藏工具栏 ====================
const showToolbar = (x, y, text, mode = 'text') => {
if (hideTimeout) clearTimeout(hideTimeout);
requestAnimationFrame(() => {
buildToolbar(text, mode);
toolbar.style.display = 'flex';
toolbar.offsetHeight;
const toolW = toolbar.offsetWidth, toolH = toolbar.offsetHeight;
let left = x + 6, top = y + 10;
if (mode === 'text') {
const firstBtn = toolbar.querySelector('button');
if (firstBtn) {
left += firstBtn.offsetWidth * -CONFIG.OFFSET_LEFT_ICON_COUNT;
top += firstBtn.offsetHeight * CONFIG.OFFSET_DOWN_ICON_COUNT;
}
}
if (left + toolW > innerWidth) left = innerWidth - toolW - 6;
if (top + toolH > innerHeight) top = y - toolH - 6;
left = Math.max(2, left);
top = Math.max(2, top);
toolbar.style.left = left + 'px';
toolbar.style.top = top + 'px';
});
};
const hideToolbar = () => { if (toolbar) toolbar.style.display = 'none'; };
const scheduleHide = () => {
if (hideTimeout) clearTimeout(hideTimeout);
hideTimeout = setTimeout(hideToolbar, CONFIG.HIDE_DELAY);
};
// ==================== URL工具 ====================
const UrlUtils = {
linkCache: new WeakMap(),
isDomain: t => t && !t.includes(' ') && (/^https?:\/\/[a-zA-Z0-9\-._~:/?#[\]@!$&'()*+,;=%]+$/.test(t) || (/^[a-zA-Z0-9\-._~:/?#[\]@!$&'()*+,;=%]+$/.test(t) && t.includes('.') && t.split('.').pop().length >= 2)),
makeUrl: d => d.startsWith('http') ? d : 'https://' + d,
isInsideEditable: el => el?.closest('input, textarea, [contenteditable="true"], [contenteditable=""]') !== null,
isLinkElement(el) {
if (!el) return false;
if (this.linkCache.has(el)) return this.linkCache.get(el);
const a = el.closest('a[href]');
this.linkCache.set(el, !!a);
return !!a;
},
getLinkUrl: el => el?.closest('a[href]')?.href || null,
isImageElement: el => el?.tagName === 'IMG',
getImageUrl: el => el?.tagName === 'IMG' ? el.src : null
};
// ==================== 代理与下载 ====================
async function fetchWithProxy(url, headers) {
try {
const res = await fetch(url, { mode: 'cors', credentials: 'omit', headers });
if (!res.ok) throw new Error(`HTTP ${res.status}`);
return await res.blob();
} catch (e) {
console.warn('fetch失败，尝试代理', e);
if (!CONFIG.PROXY_URL) throw e;
const res = await fetch(CONFIG.PROXY_URL + url, { mode: 'cors', credentials: 'omit', headers });
if (!res.ok) throw new Error(`HTTP ${res.status}`);
return await res.blob();
}
}
async function downloadImage(url) {
const ext = url.match(/\.([a-zA-Z0-9]+)(?:[?#]|$)/)?.[1] || 'jpg';
const fileName = getFormattedDateTime() + '.' + ext;
const headers = {
Accept: 'image/webp,image/apng,image/*,*/*;q=0.8',
Referer: location.origin,
Origin: location.origin,
'User-Agent': navigator.userAgent
};
if (window.showSaveFilePicker) {
try {
const blob = await fetchWithProxy(url, headers);
const handle = await window.showSaveFilePicker({
suggestedName: fileName,
types: [{ description: 'Image', accept: { [blob.type]: ['.jpg', '.jpeg', '.png', '.gif', '.webp', '.svg'] } }]
});
const writable = await handle.createWritable();
await writable.write(blob);
await writable.close();
console.log(`✅ 已保存 ${fileName}`);
return;
} catch (err) { if (err.name !== 'AbortError') console.warn('保存失败', err); }
}
const a = document.createElement('a');
a.href = url;
a.download = fileName;
a.style.display = 'none';
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
console.log(`🔄 尝试下载 ${fileName}`);
setTimeout(() => {
console.log(`💡 手动保存：${url}`);
if (CONFIG.OPEN_WINDOW_AS_FALLBACK) open(url);
}, 500);
}
// ==================== 拖拽 ====================
const DRAG_THRESHOLD = 5;
let dragStartX, dragStartY, dragListening = false, dragTriggered = false, dragMode, dragUrl, rafId;
const startDragListening = e => {
if (e.button !== 0 || toolbar?.contains(e.target) || UrlUtils.isInsideEditable(e.target)) return;
if (UrlUtils.isLinkElement(e.target)) {
dragMode = 'link';
dragUrl = UrlUtils.getLinkUrl(e.target);
if (!dragUrl) return;
} else if (UrlUtils.isImageElement(e.target)) {
dragMode = 'image';
dragUrl = UrlUtils.getImageUrl(e.target);
if (!dragUrl) return;
} else {
const sel = getSelection();
const text = sel.toString().trim();
if (!text) return;
if (sel.rangeCount > 0) {
const rect = sel.getRangeAt(0).getBoundingClientRect();
if (e.clientX < rect.left || e.clientX > rect.right || e.clientY < rect.top || e.clientY > rect.bottom) return;
}
dragMode = 'search';
dragUrl = null;
}
dragStartX = e.clientX;
dragStartY = e.clientY;
dragListening = true;
dragTriggered = false;
document.addEventListener('mousemove', onDragMoveThrottled, { passive: true });
document.addEventListener('mouseup', onDragEnd);
};
const onDragMoveThrottled = e => {
if (!dragListening || dragTriggered) return;
if (rafId) cancelAnimationFrame(rafId);
rafId = requestAnimationFrame(() => {
if (Math.hypot(e.clientX - dragStartX, e.clientY - dragStartY) >= DRAG_THRESHOLD) {
e.preventDefault?.();
e.stopPropagation?.();
dragTriggered = true;
dragListening = false;
cleanupDragListeners();
hideToolbar();
if (dragMode === 'link' && dragUrl) open(dragUrl);
else if (dragMode === 'image' && dragUrl) downloadImage(dragUrl);
else if (dragMode === 'search') {
const sel = getSelection().toString().trim();
if (sel) {
open(UrlUtils.isDomain(sel) ? UrlUtils.makeUrl(sel) : 'https://www.baidu.com/s?wd=' + encodeURIComponent(sel));
getSelection().empty();
}
}
dragTriggered = false;
dragMode = dragUrl = null;
}
rafId = null;
});
};
const onDragEnd = () => { cleanupDragListeners(); dragTriggered = false; dragMode = dragUrl = null; };
const cleanupDragListeners = () => {
dragListening = false;
document.removeEventListener('mousemove', onDragMoveThrottled);
document.removeEventListener('mouseup', onDragEnd);
if (rafId) cancelAnimationFrame(rafId);
};
// ==================== 事件监听 ====================
const initEventListeners = () => {
addEventListener('mousedown', startDragListening, { passive: true });
addEventListener('mouseup', onMouseUp);
addEventListener('mousedown', onDocumentMouseDown, { passive: true });
addEventListener('scroll', hideToolbar, { passive: true });
addEventListener('selectionchange', onSelectionChange);
};
const onMouseUp = e => {
if (dragTriggered) { dragTriggered = false; dragMode = dragUrl = null; return; }
const text = getSelection().toString().trim();
if (!text) { hideToolbar(); return; }
if (toolbar?.contains(e.target) || UrlUtils.isInsideEditable(e.target)) { hideToolbar(); return; }
showToolbar(e.clientX, e.clientY, text, 'text');
};
const onDocumentMouseDown = e => { if (toolbar && !toolbar.contains(e.target)) hideToolbar(); };
const onSelectionChange = () => {
if (!getSelection().toString().trim()) setTimeout(() => { if (!getSelection().toString().trim()) hideToolbar(); }, 100);
};
// ==================== 启动 ====================
initEventListeners();
})();