import React, { useState, useEffect, useRef, useCallback } from 'react';
// --- Enhanced Icon Components with Modern Styling ---
const IconNova = (props) => (
);
const IconHome = (props) => (
);
const IconTabs = (props) => (
);
const IconSparkles = (props) => (
);
const IconSettings = (props) => (
);
const IconPlus = (props) => (
);
const IconX = (props) => (
);
const IconSearch = (props) => (
);
const IconMic = (props) => (
);
const IconSend = (props) => (
);
const IconGrid = (props) => (
);
const IconLayers = (props) => (
);
const IconCheckSquare = (props) => (
);
const IconCalendar = (props) => (
);
const IconCloud = (props) => (
);
const IconSun = (props) => (
);
const IconMoon = (props) => (
);
const IconCode = (props) => (
);
const IconBrain = (props) => (
);
const IconZap = (props) => (
);
const IconShield = (props) => (
);
const IconDownload = (props) => (
);
// --- Search Engines Configuration ---
const SEARCH_ENGINES = {
google: {
name: "Google",
url: "https://www.google.com/search?q=",
icon: "🔍",
suggestionUrl: "https://suggestqueries.google.com/complete/search?client=firefox&q="
},
bing: {
name: "Bing",
url: "https://www.bing.com/search?q=",
icon: "🔎",
suggestionUrl: "https://api.bing.com/osjson.aspx?query="
},
duckduckgo: {
name: "DuckDuckGo",
url: "https://duckduckgo.com/?q=",
icon: "🦆",
suggestionUrl: "https://duckduckgo.com/ac/?q="
},
brave: {
name: "Brave",
url: "https://search.brave.com/search?q=",
icon: "🦁",
suggestionUrl: "https://search.brave.com/api/suggest?q="
},
youtube: {
name: "YouTube",
url: "https://www.youtube.com/results?search_query=",
icon: "📺",
suggestionUrl: "https://suggestqueries.google.com/complete/search?client=youtube&ds=yt&q="
}
};
// --- Enhanced Mock Data ---
const initialTabs = [
{
id: 1,
title: "NovaBrowse AI Dashboard",
url: "nova://dashboard",
topic: "home",
favicon: "🚀",
lastActive: "now",
isProtected: true
},
{
id: 2,
title: "Google",
url: "https://www.google.com",
topic: "search",
favicon: "🔍",
lastActive: "5m ago",
searchEngine: "google"
}
];
const topicColorsMap = {
home: { border: "border-blue-500", text: "text-blue-400", bg: "bg-blue-500", gradient: "from-blue-500 to-cyan-500" },
research: { border: "border-purple-500", text: "text-purple-400", bg: "bg-purple-500", gradient: "from-purple-500 to-pink-500" },
work: { border: "border-green-500", text: "text-green-400", bg: "bg-green-500", gradient: "from-green-500 to-emerald-500" },
entertainment: { border: "border-red-500", text: "text-red-400", bg: "bg-red-500", gradient: "from-red-500 to-orange-500" },
search: { border: "border-yellow-500", text: "text-yellow-400", bg: "bg-yellow-500", gradient: "from-yellow-500 to-orange-500" },
default: { border: "border-gray-500", text: "text-gray-400", bg: "bg-gray-500", gradient: "from-gray-500 to-slate-500" },
};
const mockWidgets = [
{ id: 1, icon: , title: "Calendar", content: "3 Meetings Today", metric: "+2 from yesterday", trend: "up" },
{ id: 2, icon: , title: "To-Do", content: "Finish browser prototype.", metric: "75% completed", trend: "up" },
{ id: 3, icon: , title: "Weather", content: "24°C, Clear", metric: "Perfect for focus", trend: "stable" },
{ id: 4, icon: , title: "AI Tip", content: "Try 'Summarize this' on any article.", metric: "Saves 5min avg", trend: "up" },
];
const aiCommands = [
{ command: "Summarize this page", icon: "📄", description: "Get key points from current tab" },
{ command: "Organize my tabs", icon: "🗂️", description: "AI-powered tab grouping" },
{ command: "Find research papers", icon: "🔍", description: "Academic search optimization" },
{ command: "Translate to Spanish", icon: "🌎", description: "Real-time page translation" },
];
// --- Main Component ---
export default function AdvancedBrowser() {
const [tabs, setTabs] = useState(initialTabs);
const [activeTabId, setActiveTabId] = useState(1);
const [activePage, setActivePage] = useState('dashboard');
const [isCopilotOpen, setIsCopilotOpen] = useState(false);
const [copilotMessages, setCopilotMessages] = useState([
{ from: "ai", text: "Hello! I am Nova, your AI assistant. How can I help you browse today?" }
]);
const [copilotInput, setCopilotInput] = useState("");
const [isAiThinking, setIsAiThinking] = useState(false);
const [searchTerm, setSearchTerm] = useState("");
const [theme, setTheme] = useState('dark');
const [isListening, setIsListening] = useState(false);
const [sidebarCollapsed, setSidebarCollapsed] = useState(false);
const [showCommandPalette, setShowCommandPalette] = useState(false);
const [performanceMetrics, setPerformanceMetrics] = useState({
memory: "1.2GB", cpu: "15%", network: "45ms", tabs: "2 open"
});
const [currentUrl, setCurrentUrl] = useState("nova://dashboard");
const [isLoading, setIsLoading] = useState(false);
const [searchSuggestions, setSearchSuggestions] = useState([]);
const [showSuggestions, setShowSuggestions] = useState(false);
const [currentSearchEngine, setCurrentSearchEngine] = useState("google");
const [downloads, setDownloads] = useState([]);
const [securityStatus, setSecurityStatus] = useState("secure");
const [bookmarks, setBookmarks] = useState([]);
const [history, setHistory] = useState([]);
const copilotMessagesEndRef = useRef(null);
const speechRecognitionRef = useRef(null);
const searchInputRef = useRef(null);
const iframeRef = useRef(null);
const activeTab = tabs.find(t => t.id === activeTabId);
// Enhanced theme simulation
useEffect(() => {
const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
setTheme(mediaQuery.matches ? 'dark' : 'light');
const handler = (e) => setTheme(e.matches ? 'dark' : 'light');
mediaQuery.addEventListener('change', handler);
return () => mediaQuery.removeEventListener('change', handler);
}, []);
// Enhanced scroll effect
useEffect(() => {
copilotMessagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
}, [copilotMessages]);
// Enhanced speech recognition
useEffect(() => {
const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
if (SpeechRecognition) {
const recognition = new SpeechRecognition();
recognition.continuous = false;
recognition.interimResults = false;
recognition.lang = 'en-US';
recognition.onstart = () => setIsListening(true);
recognition.onend = () => setIsListening(false);
recognition.onresult = (event) => {
const transcript = event.results[0][0].transcript;
setSearchTerm(transcript);
handleSearch(transcript);
};
recognition.onerror = (event) => {
console.error("Speech recognition error:", event.error);
setIsListening(false);
};
speechRecognitionRef.current = recognition;
}
}, []);
// Command palette shortcut
useEffect(() => {
const handleKeyDown = (e) => {
if ((e.metaKey || e.ctrlKey) && e.key === 'k') {
e.preventDefault();
setShowCommandPalette(true);
setTimeout(() => searchInputRef.current?.focus(), 100);
}
if (e.key === 'Escape') {
setShowCommandPalette(false);
setShowSuggestions(false);
}
if ((e.metaKey || e.ctrlKey) && e.key === 't') {
e.preventDefault();
handleNewTab();
}
if ((e.metaKey || e.ctrlKey) && e.key === 'w') {
e.preventDefault();
if (tabs.length > 1) {
handleCloseTab(null, activeTabId);
}
}
};
window.addEventListener('keydown', handleKeyDown);
return () => window.removeEventListener('keydown', handleKeyDown);
}, [tabs, activeTabId]);
// Search suggestions
useEffect(() => {
if (searchTerm.length > 2) {
fetchSearchSuggestions(searchTerm);
} else {
setSearchSuggestions([]);
}
}, [searchTerm]);
const fetchSearchSuggestions = async (query) => {
try {
const engine = SEARCH_ENGINES[currentSearchEngine];
const response = await fetch(`${engine.suggestionUrl}${encodeURIComponent(query)}`);
const data = await response.json();
setSearchSuggestions(data[1] || []);
setShowSuggestions(true);
} catch (error) {
console.error("Failed to fetch suggestions:", error);
}
};
const toggleTheme = () => {
setTheme(t => (t === 'dark' ? 'light' : 'dark'));
};
const getTopicColor = useCallback((topic, type = 'border') => {
const colors = topicColorsMap[topic] || topicColorsMap.default;
return colors[type];
}, []);
const handleTabClick = (id) => {
setActiveTabId(id);
const tab = tabs.find(t => t.id === id);
setCurrentUrl(tab.url);
setActivePage(tab.url === "nova://dashboard" ? 'dashboard' : 'web');
};
const handleNewTab = (url = "nova://dashboard", title = "New Tab") => {
const newId = Math.max(0, ...tabs.map(t => t.id)) + 1;
const newTab = {
id: newId,
title: title,
url: url,
topic: url === "nova://dashboard" ? "home" : "default",
favicon: "🌐",
lastActive: "now"
};
setTabs([...tabs, newTab]);
setActiveTabId(newId);
setCurrentUrl(url);
setActivePage(url === "nova://dashboard" ? 'dashboard' : 'web');
};
const handleCloseTab = (e, id) => {
e?.stopPropagation();
if (tabs.length === 1) {
handleNewTab();
setTabs(tabs.filter(t => t.id !== id));
return;
}
const newTabs = tabs.filter(t => t.id !== id);
setTabs(newTabs);
if (activeTabId === id) {
const newActiveId = newTabs[newTabs.length - 1].id;
setActiveTabId(newActiveId);
const newActiveTab = newTabs.find(t => t.id === newActiveId);
setCurrentUrl(newActiveTab.url);
setActivePage(newActiveTab.url === "nova://dashboard" ? 'dashboard' : 'web');
}
};
const organizeTabsByAi = () => {
const sortedTabs = [...tabs].sort((a, b) => a.topic.localeCompare(b.topic));
setTabs(sortedTabs);
};
const handleSearch = (query, engine = currentSearchEngine) => {
if (!query?.trim()) return;
setIsLoading(true);
setSearchTerm(query);
const searchUrl = SEARCH_ENGINES[engine].url + encodeURIComponent(query);
const searchTab = tabs.find(t => t.url.includes(SEARCH_ENGINES[engine].url));
if (searchTab) {
const updatedTabs = tabs.map(t =>
t.id === searchTab.id ? { ...t, url: searchUrl, title: `${SEARCH_ENGINES[engine].name} Search` } : t
);
setTabs(updatedTabs);
setActiveTabId(searchTab.id);
} else {
handleNewTab(searchUrl, `${SEARCH_ENGINES[engine].name} Search`);
}
setCurrentUrl(searchUrl);
setActivePage('web');
setShowSuggestions(false);
// Add to history
setHistory(prev => [...prev, {
url: searchUrl,
title: `${query} - ${SEARCH_ENGINES[engine].name} Search`,
timestamp: new Date().toISOString()
}]);
};
const handleUrlNavigation = (url) => {
if (!url) return;
let finalUrl = url;
if (!url.startsWith('http') && !url.startsWith('nova://')) {
finalUrl = SEARCH_ENGINES[currentSearchEngine].url + encodeURIComponent(url);
}
setIsLoading(true);
setCurrentUrl(finalUrl);
const updatedTabs = tabs.map(t =>
t.id === activeTabId ? { ...t, url: finalUrl, title: "Loading..." } : t
);
setTabs(updatedTabs);
if (finalUrl.startsWith('nova://')) {
setActivePage('dashboard');
} else {
setActivePage('web');
}
};
const handleVoiceSearch = () => {
if (speechRecognitionRef.current && !isListening) {
speechRecognitionRef.current.start();
} else if (isListening) {
speechRecognitionRef.current.stop();
}
};
const handleDownload = (url, filename) => {
const downloadId = Date.now();
const newDownload = {
id: downloadId,
url,
filename: filename || `download-${downloadId}`,
progress: 0,
status: 'downloading'
};
setDownloads(prev => [...prev, newDownload]);
// Simulate download progress
const interval = setInterval(() => {
setDownloads(prev => prev.map(d =>
d.id === downloadId
? { ...d, progress: Math.min(d.progress + 10, 100) }
: d
));
}, 200);
setTimeout(() => {
clearInterval(interval);
setDownloads(prev => prev.map(d =>
d.id === downloadId
? { ...d, progress: 100, status: 'completed' }
: d
));
}, 2000);
};
const addBookmark = (url, title) => {
const newBookmark = {
id: Date.now(),
url,
title,
favicon: "🔖",
dateAdded: new Date().toISOString()
};
setBookmarks(prev => [...prev, newBookmark]);
};
const removeBookmark = (id) => {
setBookmarks(prev => prev.filter(b => b.id !== id));
};
const handleIframeLoad = () => {
setIsLoading(false);
const updatedTabs = tabs.map(t =>
t.id === activeTabId ? { ...t, title: iframeRef.current?.contentDocument?.title || t.title } : t
);
setTabs(updatedTabs);
// Update security status based on URL
const isSecure = currentUrl.startsWith('https://');
setSecurityStatus(isSecure ? 'secure' : 'insecure');
};
const Sidebar = () => (
);
const TabStrip = () => (
{tabs.map(tab => (
handleTabClick(tab.id)}
className={`group relative flex items-center justify-between px-4 h-full min-w-[180px] max-w-[240px] cursor-pointer transition-all duration-300 border-r ${
activeTabId === tab.id
? 'bg-gradient-to-r from-blue-500/20 to-purple-500/10'
: (theme === 'dark' ? 'bg-gray-800/10 hover:bg-gray-500/20' : 'bg-white/10 hover:bg-gray-200/20')
} ${theme === 'dark' ? 'border-gray-700/30' : 'border-gray-300/30'}`}
>
{tab.favicon}
{tab.title}
))}
);
const AddressBar = () => (
{/* Search Engine Selector */}
{Object.entries(SEARCH_ENGINES).map(([key, engine]) => (
))}
setSearchTerm(e.target.value)}
onKeyDown={(e) => e.key === 'Enter' && handleSearch(searchTerm)}
onFocus={() => searchTerm.length > 2 && setShowSuggestions(true)}
/>
{isLoading && (
)}
{/* Security Indicator */}
{/* Search Suggestions */}
{showSuggestions && searchSuggestions.length > 0 && (
{searchSuggestions.slice(0, 8).map((suggestion, index) => (
))}
)}
);
const WebView = () => (
{isLoading && (
)}
{currentUrl.startsWith('nova://') ? (
) : (
)}
NovaBrowse AI
The Future of Intelligent Browsing
{mockWidgets.map((widget, i) => (
{widget.icon}
{widget.metric}
{widget.title}
{widget.content}
))}
{aiCommands.slice(0, 4).map((cmd, i) => (
))}
{/* Quick Access Sites */}
Quick Access
{Object.entries(SEARCH_ENGINES).map(([key, engine]) => (
))}
);
const BookmarksView = () => (
Bookmarks
{bookmarks.length === 0 ? (
🔖
No bookmarks yet
Bookmark your favorite sites for quick access
) : (
{bookmarks.map(bookmark => (
handleNewTab(bookmark.url, bookmark.title)}
>
{bookmark.favicon}
{bookmark.title}
{new URL(bookmark.url).hostname}
))}
)}
);
const DownloadsView = () => (
Downloads
{downloads.length === 0 ? (
No downloads yet
Your downloaded files will appear here
) : (
{downloads.map(download => (
{download.filename}
{download.status === 'completed' ? 'Completed' : 'Downloading...'}
))}
)}
);
const MainContent = () => (
{activePage === 'dashboard' &&
}
{activePage === 'web' &&
}
{activePage === 'tabs' &&
}
{activePage === 'bookmarks' &&
}
{activePage === 'downloads' &&
}
{activePage === 'developer' &&
}
{activePage === 'ai' &&
}
Nova Copilot
{isAiThinking ? 'Thinking...' : 'Always learning'}
{copilotMessages.map((msg, i) => (
{msg.from === 'ai' && (
)}
{msg.from === 'user' ? 'You' : 'Nova AI'}
{msg.text}
))}
{isAiThinking && (
)}
);
return (
<>
);
}