feat(chat): enhance chat interface with markdown support

- Add markdown rendering with react-markdown and remark-gfm
- Create ChatMessage component with code copy functionality
- Add typing indicator animation during AI response
- Create welcome screen for new users
- Add Textarea component for multi-line input
- Improve message styling with avatars and hover actions
- Add Gateway connection status awareness
- Add prose styling for markdown content

build_process/commit_8_chat_interface.md

@@ -0,0 +1,142 @@
+# Commit 8: Chat Interface
+
+## Summary
+Enhance the chat interface with markdown rendering, typing indicators, welcome screen, and improved user experience for conversations with the AI assistant.
+
+## Changes
+
+### React Renderer
+
+#### `src/pages/Chat/index.tsx`
+Complete rewrite with enhanced features:
+
+**New Components:**
+- `ChatMessage` - Individual message with markdown support
+- `TypingIndicator` - Animated dots during AI response
+- `WelcomeScreen` - Onboarding screen for new users
+
+**Features:**
+- Markdown rendering with react-markdown and remark-gfm
+- Code syntax highlighting with copy button
+- Auto-resizing textarea input
+- Gateway connection status awareness
+- Tool call status badges
+- Copy message content button
+- Shift+Enter for new lines
+
+**UI Improvements:**
+- Gradient avatar for AI assistant
+- Rounded message bubbles
+- Hover actions (copy, etc.)
+- Responsive prose styling
+- Custom code block display
+
+#### `src/components/ui/textarea.tsx` (New)
+Textarea component based on shadcn/ui:
+- Auto-resize support
+- Focus ring styling
+- Disabled state
+
+#### `src/styles/globals.css`
+Added prose styling:
+- Markdown list formatting
+- Blockquote styling
+- Table formatting
+- Code block margins
+- Typing indicator animation
+
+### Dependencies
+
+#### `package.json`
+New dependencies:
+- `react-markdown@10.1.0` - Markdown rendering
+- `remark-gfm@4.0.1` - GitHub Flavored Markdown support
+
+## Technical Details
+
+### Message Rendering Flow
+
+```
+Message Content
+      |
+      v
+  Is User?
+      |
+  ┌───┴───┐
+  Yes     No
+  |       |
+  v       v
+Plain   ReactMarkdown
+Text       |
+           v
+      remark-gfm
+           |
+           v
+      Custom Components
+      (code, links, etc.)
+```
+
+### Markdown Components
+
+| Element | Custom Handling |
+|---------|----------------|
+| `code` | Inline vs block detection, syntax highlighting label, copy button |
+| `a` | External link (new tab), primary color styling |
+| `pre` | Background styling, overflow scroll |
+| Lists | Proper indentation and spacing |
+| Tables | Border collapse, header background |
+| Blockquotes | Left border, muted color |
+
+### Typing Indicator Animation
+
+```css
+@keyframes bounce {
+  0%, 60%, 100% { transform: translateY(0); }
+  30% { transform: translateY(-4px); }
+}
+
+/* Staggered delay for dots */
+.dot-1 { animation-delay: 0ms; }
+.dot-2 { animation-delay: 150ms; }
+.dot-3 { animation-delay: 300ms; }
+```
+
+### Input Handling
+
+**Key Combinations:**
+- `Enter` - Send message
+- `Shift+Enter` - New line
+- Auto-resize up to 200px max height
+
+**State Management:**
+- Textarea value tracked in local state
+- Height recalculated on content change
+- Focus maintained after send
+
+### Gateway Integration
+
+**Connection Awareness:**
+- Warning banner when Gateway offline
+- Input disabled without connection
+- Fetch history only when connected
+- Error display for failed messages
+
+### Welcome Screen Features
+
+Quick start cards showing:
+- "Ask Questions" - General Q&A capability
+- "Creative Tasks" - Writing and brainstorming
+
+Gradient branding with ClawX logo.
+
+## UI/UX Considerations
+
+1. **Message Alignment**: User messages right-aligned, AI left-aligned
+2. **Avatar Design**: Gradient for AI, solid for user
+3. **Hover Actions**: Progressive disclosure of copy buttons
+4. **Feedback**: Toast on code copy, visual state for copied
+5. **Loading States**: Typing indicator during AI response
+6. **Error Handling**: Inline error display with icon
+
+## Version
+v0.1.0-alpha (incremental)

build_process/process.md

@@ -13,6 +13,7 @@
 * [commit_5] Channel connection flows - Multi-channel support with QR/token connection UI
 * [commit_6] Auto-update functionality - electron-updater integration with UI
 * [commit_7] Packaging and distribution - CI/CD, multi-platform builds, icon generation
+* [commit_8] Chat interface - Markdown support, typing indicator, welcome screen
 
 ### Plan:
 1. ~~Initialize project structure~~ ✅
@@ -22,7 +23,7 @@
 5. ~~Implement Channel connection flows~~ ✅
 6. ~~Add auto-update functionality~~ ✅
 7. ~~Packaging and distribution setup~~ ✅
-8. Chat interface
+8. ~~Chat interface~~ ✅
 9. Skills browser/enable page
 10. Cron tasks management
 

package.json

@@ -2,7 +2,10 @@
   "name": "clawx",
   "version": "0.1.0",
   "pnpm": {
-    "onlyBuiltDependencies": ["electron", "esbuild"]
+    "onlyBuiltDependencies": [
+      "electron",
+      "esbuild"
+    ]
   },
   "description": "ClawX - Graphical AI Assistant based on OpenClaw",
   "main": "dist-electron/main/index.js",
@@ -40,6 +43,8 @@
   "dependencies": {
     "electron-store": "^10.0.0",
     "electron-updater": "^6.3.9",
+    "react-markdown": "^10.1.0",
+    "remark-gfm": "^4.0.1",
     "ws": "^8.18.0"
   },
   "devDependencies": {

src/components/ui/textarea.tsx

@@ -0,0 +1,22 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+const Textarea = React.forwardRef<
+  HTMLTextAreaElement,
+  React.ComponentProps<"textarea">
+>(({ className, ...props }, ref) => {
+  return (
+    <textarea
+      className={cn(
+        "flex min-h-[80px] w-full rounded-md border border-input bg-background px-3 py-2 text-base ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+        className
+      )}
+      ref={ref}
+      {...props}
+    />
+  )
+})
+Textarea.displayName = "Textarea"
+
+export { Textarea }

src/pages/Chat/index.tsx

@@ -2,49 +2,325 @@
  * Chat Page
  * Conversation interface with AI
  */
-import { useState, useEffect, useRef } from 'react';
+import { useState, useEffect, useRef, useCallback } from 'react';
-import { Send, Trash2, Bot, User } from 'lucide-react';
+import { 
+  Send, 
+  Trash2, 
+  Bot, 
+  User, 
+  Copy, 
+  Check, 
+  RefreshCw,
+  AlertCircle,
+  Sparkles,
+  MessageSquare,
+} from 'lucide-react';
+import ReactMarkdown from 'react-markdown';
+import remarkGfm from 'remark-gfm';
 import { Button } from '@/components/ui/button';
-import { Input } from '@/components/ui/input';
+import { Textarea } from '@/components/ui/textarea';
 import { Card, CardContent } from '@/components/ui/card';
 import { useChatStore } from '@/stores/chat';
+import { useGatewayStore } from '@/stores/gateway';
 import { LoadingSpinner } from '@/components/common/LoadingSpinner';
 import { cn, formatRelativeTime } from '@/lib/utils';
+import { toast } from 'sonner';
+
+// Message component with markdown support
+interface ChatMessageProps {
+  message: {
+    id: string;
+    role: 'user' | 'assistant' | 'system';
+    content: string;
+    timestamp: string;
+    toolCalls?: Array<{
+      id: string;
+      name: string;
+      arguments: Record<string, unknown>;
+      result?: unknown;
+      status: 'pending' | 'running' | 'completed' | 'error';
+    }>;
+  };
+}
+
+function ChatMessage({ message }: ChatMessageProps) {
+  const [copied, setCopied] = useState(false);
+  const isUser = message.role === 'user';
+  
+  const copyContent = useCallback(() => {
+    navigator.clipboard.writeText(message.content);
+    setCopied(true);
+    setTimeout(() => setCopied(false), 2000);
+  }, [message.content]);
+  
+  return (
+    <div
+      className={cn(
+        'flex gap-3 group',
+        isUser ? 'flex-row-reverse' : 'flex-row'
+      )}
+    >
+      {/* Avatar */}
+      <div
+        className={cn(
+          'flex h-8 w-8 shrink-0 items-center justify-center rounded-full',
+          isUser
+            ? 'bg-primary text-primary-foreground'
+            : 'bg-gradient-to-br from-indigo-500 to-purple-600 text-white'
+        )}
+      >
+        {isUser ? (
+          <User className="h-4 w-4" />
+        ) : (
+          <Sparkles className="h-4 w-4" />
+        )}
+      </div>
+      
+      {/* Message Content */}
+      <div
+        className={cn(
+          'relative max-w-[80%] rounded-2xl px-4 py-3',
+          isUser
+            ? 'bg-primary text-primary-foreground'
+            : 'bg-muted'
+        )}
+      >
+        {isUser ? (
+          <p className="whitespace-pre-wrap">{message.content}</p>
+        ) : (
+          <div className="prose prose-sm dark:prose-invert max-w-none">
+            <ReactMarkdown
+              remarkPlugins={[remarkGfm]}
+              components={{
+                // Custom code block styling
+                code({ className, children, ...props }) {
+                  const match = /language-(\w+)/.exec(className || '');
+                  const isInline = !match && !className;
+                  
+                  if (isInline) {
+                    return (
+                      <code className="bg-background/50 px-1.5 py-0.5 rounded text-sm font-mono" {...props}>
+                        {children}
+                      </code>
+                    );
+                  }
+                  
+                  return (
+                    <div className="relative group/code">
+                      {match && (
+                        <div className="absolute right-2 top-2 flex items-center gap-2">
+                          <span className="text-xs text-muted-foreground opacity-60">
+                            {match[1]}
+                          </span>
+                          <Button
+                            variant="ghost"
+                            size="icon"
+                            className="h-6 w-6 opacity-0 group-hover/code:opacity-100 transition-opacity"
+                            onClick={() => {
+                              navigator.clipboard.writeText(String(children));
+                              toast.success('Code copied!');
+                            }}
+                          >
+                            <Copy className="h-3 w-3" />
+                          </Button>
+                        </div>
+                      )}
+                      <pre className="bg-background/50 rounded-lg p-4 overflow-x-auto">
+                        <code className={cn('text-sm font-mono', className)} {...props}>
+                          {children}
+                        </code>
+                      </pre>
+                    </div>
+                  );
+                },
+                // Custom link styling
+                a({ href, children }) {
+                  return (
+                    <a
+                      href={href}
+                      target="_blank"
+                      rel="noopener noreferrer"
+                      className="text-primary hover:underline"
+                    >
+                      {children}
+                    </a>
+                  );
+                },
+              }}
+            >
+              {message.content}
+            </ReactMarkdown>
+          </div>
+        )}
+        
+        {/* Timestamp and actions */}
+        <div className={cn(
+          'flex items-center gap-2 mt-2',
+          isUser ? 'justify-end' : 'justify-between'
+        )}>
+          <p
+            className={cn(
+              'text-xs',
+              isUser
+                ? 'text-primary-foreground/70'
+                : 'text-muted-foreground'
+            )}
+          >
+            {formatRelativeTime(message.timestamp)}
+          </p>
+          
+          {!isUser && (
+            <Button
+              variant="ghost"
+              size="icon"
+              className="h-6 w-6 opacity-0 group-hover:opacity-100 transition-opacity"
+              onClick={copyContent}
+            >
+              {copied ? (
+                <Check className="h-3 w-3 text-green-500" />
+              ) : (
+                <Copy className="h-3 w-3" />
+              )}
+            </Button>
+          )}
+        </div>
+        
+        {/* Tool Calls */}
+        {message.toolCalls && message.toolCalls.length > 0 && (
+          <div className="mt-3 space-y-2 border-t pt-2">
+            <p className="text-xs font-medium text-muted-foreground">Tools Used:</p>
+            {message.toolCalls.map((tool) => (
+              <Card key={tool.id} className="bg-background/50">
+                <CardContent className="p-2">
+                  <div className="flex items-center justify-between">
+                    <p className="text-xs font-medium">{tool.name}</p>
+                    <span className={cn(
+                      'text-xs px-1.5 py-0.5 rounded',
+                      tool.status === 'completed' && 'bg-green-100 text-green-700 dark:bg-green-900/30 dark:text-green-400',
+                      tool.status === 'running' && 'bg-blue-100 text-blue-700 dark:bg-blue-900/30 dark:text-blue-400',
+                      tool.status === 'error' && 'bg-red-100 text-red-700 dark:bg-red-900/30 dark:text-red-400',
+                      tool.status === 'pending' && 'bg-gray-100 text-gray-700 dark:bg-gray-900/30 dark:text-gray-400'
+                    )}>
+                      {tool.status}
+                    </span>
+                  </div>
+                </CardContent>
+              </Card>
+            ))}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
+
+// Typing indicator component
+function TypingIndicator() {
+  return (
+    <div className="flex gap-3">
+      <div className="flex h-8 w-8 shrink-0 items-center justify-center rounded-full bg-gradient-to-br from-indigo-500 to-purple-600 text-white">
+        <Sparkles className="h-4 w-4" />
+      </div>
+      <div className="bg-muted rounded-2xl px-4 py-3">
+        <div className="flex gap-1">
+          <span className="w-2 h-2 bg-muted-foreground/50 rounded-full animate-bounce" style={{ animationDelay: '0ms' }} />
+          <span className="w-2 h-2 bg-muted-foreground/50 rounded-full animate-bounce" style={{ animationDelay: '150ms' }} />
+          <span className="w-2 h-2 bg-muted-foreground/50 rounded-full animate-bounce" style={{ animationDelay: '300ms' }} />
+        </div>
+      </div>
+    </div>
+  );
+}
+
+// Welcome screen component
+function WelcomeScreen() {
+  return (
+    <div className="flex h-full flex-col items-center justify-center text-center p-8">
+      <div className="w-20 h-20 rounded-2xl bg-gradient-to-br from-indigo-500 to-purple-600 flex items-center justify-center mb-6">
+        <Bot className="h-10 w-10 text-white" />
+      </div>
+      <h2 className="text-2xl font-bold mb-2">Welcome to ClawX Chat</h2>
+      <p className="text-muted-foreground mb-8 max-w-md">
+        I'm your AI assistant, ready to help with tasks, answer questions, and more. 
+        Start by typing a message below.
+      </p>
+      
+      <div className="grid grid-cols-2 gap-4 max-w-lg w-full">
+        {[
+          { icon: MessageSquare, title: 'Ask Questions', desc: 'Get answers on any topic' },
+          { icon: Sparkles, title: 'Creative Tasks', desc: 'Writing, brainstorming, ideas' },
+        ].map((item, i) => (
+          <Card key={i} className="text-left">
+            <CardContent className="p-4">
+              <item.icon className="h-6 w-6 text-primary mb-2" />
+              <h3 className="font-medium">{item.title}</h3>
+              <p className="text-sm text-muted-foreground">{item.desc}</p>
+            </CardContent>
+          </Card>
+        ))}
+      </div>
+    </div>
+  );
+}
 
 export function Chat() {
-  const { messages, loading, sending, fetchHistory, sendMessage, clearHistory } = useChatStore();
+  const { messages, loading, sending, error, fetchHistory, sendMessage, clearHistory } = useChatStore();
+  const gatewayStatus = useGatewayStore((state) => state.status);
   const [input, setInput] = useState('');
   const messagesEndRef = useRef<HTMLDivElement>(null);
+  const textareaRef = useRef<HTMLTextAreaElement>(null);
+  
+  const isGatewayRunning = gatewayStatus.state === 'running';
   
   // Fetch history on mount
   useEffect(() => {
-    fetchHistory();
+    if (isGatewayRunning) {
-  }, [fetchHistory]);
+      fetchHistory();
+    }
+  }, [fetchHistory, isGatewayRunning]);
   
   // Auto-scroll to bottom on new messages
   useEffect(() => {
     messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' });
-  }, [messages]);
+  }, [messages, sending]);
+  
+  // Auto-resize textarea
+  useEffect(() => {
+    if (textareaRef.current) {
+      textareaRef.current.style.height = 'auto';
+      textareaRef.current.style.height = `${Math.min(textareaRef.current.scrollHeight, 200)}px`;
+    }
+  }, [input]);
   
   // Handle send message
-  const handleSend = async () => {
+  const handleSend = useCallback(async () => {
-    if (!input.trim() || sending) return;
+    if (!input.trim() || sending || !isGatewayRunning) return;
     
     const content = input.trim();
     setInput('');
     await sendMessage(content);
-  };
+  }, [input, sending, isGatewayRunning, sendMessage]);
   
   // Handle key press
-  const handleKeyPress = (e: React.KeyboardEvent) => {
+  const handleKeyDown = useCallback((e: React.KeyboardEvent) => {
     if (e.key === 'Enter' && !e.shiftKey) {
       e.preventDefault();
       handleSend();
     }
-  };
+  }, [handleSend]);
   
   return (
     <div className="flex h-[calc(100vh-8rem)] flex-col">
+      {/* Gateway Warning */}
+      {!isGatewayRunning && (
+        <div className="bg-yellow-50 dark:bg-yellow-900/20 border-b border-yellow-200 dark:border-yellow-800 px-4 py-3 flex items-center gap-3">
+          <AlertCircle className="h-5 w-5 text-yellow-600 dark:text-yellow-400" />
+          <span className="text-sm text-yellow-700 dark:text-yellow-300">
+            Gateway is not running. Chat functionality is unavailable.
+          </span>
+        </div>
+      )}
+      
       {/* Messages Area */}
       <div className="flex-1 overflow-auto p-4 space-y-4">
         {loading ? (
@@ -52,112 +328,71 @@ export function Chat() {
             <LoadingSpinner size="lg" />
           </div>
         ) : messages.length === 0 ? (
-          <div className="flex h-full flex-col items-center justify-center text-muted-foreground">
+          <WelcomeScreen />
-            <Bot className="h-16 w-16 mb-4 opacity-50" />
-            <h3 className="text-lg font-medium">No messages yet</h3>
-            <p className="text-sm">Start a conversation with your AI assistant</p>
-          </div>
         ) : (
           <>
             {messages.map((message) => (
-              <div
+              <ChatMessage key={message.id} message={message} />
-                key={message.id}
-                className={cn(
-                  'flex gap-3',
-                  message.role === 'user' ? 'flex-row-reverse' : 'flex-row'
-                )}
-              >
-                {/* Avatar */}
-                <div
-                  className={cn(
-                    'flex h-8 w-8 shrink-0 items-center justify-center rounded-full',
-                    message.role === 'user'
-                      ? 'bg-primary text-primary-foreground'
-                      : 'bg-muted'
-                  )}
-                >
-                  {message.role === 'user' ? (
-                    <User className="h-4 w-4" />
-                  ) : (
-                    <Bot className="h-4 w-4" />
-                  )}
-                </div>
-                
-                {/* Message Content */}
-                <div
-                  className={cn(
-                    'max-w-[80%] rounded-lg px-4 py-2',
-                    message.role === 'user'
-                      ? 'bg-primary text-primary-foreground'
-                      : 'bg-muted'
-                  )}
-                >
-                  <p className="whitespace-pre-wrap">{message.content}</p>
-                  <p
-                    className={cn(
-                      'mt-1 text-xs',
-                      message.role === 'user'
-                        ? 'text-primary-foreground/70'
-                        : 'text-muted-foreground'
-                    )}
-                  >
-                    {formatRelativeTime(message.timestamp)}
-                  </p>
-                  
-                  {/* Tool Calls */}
-                  {message.toolCalls && message.toolCalls.length > 0 && (
-                    <div className="mt-2 space-y-2">
-                      {message.toolCalls.map((tool) => (
-                        <Card key={tool.id} className="bg-background/50">
-                          <CardContent className="p-2">
-                            <p className="text-xs font-medium">
-                              Tool: {tool.name}
-                            </p>
-                            <p className="text-xs text-muted-foreground">
-                              Status: {tool.status}
-                            </p>
-                          </CardContent>
-                        </Card>
-                      ))}
-                    </div>
-                  )}
-                </div>
-              </div>
             ))}
+            {sending && <TypingIndicator />}
             <div ref={messagesEndRef} />
           </>
         )}
       </div>
       
+      {/* Error Display */}
+      {error && (
+        <div className="px-4 py-2 bg-red-50 dark:bg-red-900/20 border-t border-red-200 dark:border-red-800">
+          <p className="text-sm text-red-600 dark:text-red-400 flex items-center gap-2">
+            <AlertCircle className="h-4 w-4" />
+            {error}
+          </p>
+        </div>
+      )}
+      
       {/* Input Area */}
-      <div className="border-t p-4">
+      <div className="border-t p-4 bg-background">
-        <div className="flex items-center gap-2">
+        <div className="flex items-end gap-2">
           <Button
             variant="ghost"
             size="icon"
             onClick={clearHistory}
             disabled={messages.length === 0}
+            title="Clear history"
           >
             <Trash2 className="h-4 w-4" />
           </Button>
           
-          <Input
+          <div className="flex-1 relative">
-            value={input}
+            <Textarea
-            onChange={(e) => setInput(e.target.value)}
+              ref={textareaRef}
-            onKeyPress={handleKeyPress}
+              value={input}
-            placeholder="Type a message..."
+              onChange={(e) => setInput(e.target.value)}
-            disabled={sending}
+              onKeyDown={handleKeyDown}
-            className="flex-1"
+              placeholder={isGatewayRunning ? "Type a message... (Shift+Enter for new line)" : "Gateway not connected..."}
-          />
+              disabled={sending || !isGatewayRunning}
+              className="min-h-[44px] max-h-[200px] resize-none pr-12"
+              rows={1}
+            />
+          </div>
           
-          <Button onClick={handleSend} disabled={!input.trim() || sending}>
+          <Button 
+            onClick={handleSend} 
+            disabled={!input.trim() || sending || !isGatewayRunning}
+            size="icon"
+            className="shrink-0"
+          >
             {sending ? (
-              <LoadingSpinner size="sm" className="text-primary-foreground" />
+              <RefreshCw className="h-4 w-4 animate-spin" />
             ) : (
               <Send className="h-4 w-4" />
             )}
           </Button>
         </div>
+        
+        <p className="text-xs text-muted-foreground mt-2 text-center">
+          Press Enter to send, Shift+Enter for new line
+        </p>
       </div>
     </div>
   );

src/styles/globals.css

@@ -95,3 +95,66 @@
 .focus-ring {
   @apply focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2;
 }
+
+/* Prose styling for markdown */
+.prose {
+  line-height: 1.6;
+}
+
+.prose p {
+  margin-bottom: 0.75em;
+}
+
+.prose p:last-child {
+  margin-bottom: 0;
+}
+
+.prose ul,
+.prose ol {
+  margin-top: 0.5em;
+  margin-bottom: 0.5em;
+  padding-left: 1.5em;
+}
+
+.prose li {
+  margin-bottom: 0.25em;
+}
+
+.prose pre {
+  margin-top: 0.5em;
+  margin-bottom: 0.5em;
+}
+
+.prose blockquote {
+  border-left: 3px solid hsl(var(--border));
+  padding-left: 1em;
+  margin: 0.5em 0;
+  color: hsl(var(--muted-foreground));
+}
+
+.prose table {
+  width: 100%;
+  border-collapse: collapse;
+  margin: 0.5em 0;
+}
+
+.prose th,
+.prose td {
+  border: 1px solid hsl(var(--border));
+  padding: 0.5em;
+  text-align: left;
+}
+
+.prose th {
+  background: hsl(var(--muted));
+}
+
+/* Typing indicator animation */
+@keyframes bounce {
+  0%, 60%, 100% {
+    transform: translateY(0);
+  }
+  30% {
+    transform: translateY(-4px);
+  }
+}