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@maceip maceip commented Jul 11, 2025

Summary

This PR focuses on UI performance improvements, including optimized chat panels, draggable dividers, and comprehensive performance monitoring.

Changes

  • Optimized chat panel rendering and state management
  • Implemented draggable dividers with smooth resize behavior
  • Added performance monitoring for main process operations
  • Extracted shared UI components and hooks for reusability
  • Added debounce utilities for improved performance

Commits

  • 68c0bf8 feat: enhance Window interface for Electron integration
  • 3c53843 feat: optimize chat panel and draggable dividers
  • c0e5862 feat: Extract UI type definitions and components
  • a6fb19a feat: Add metadata types and performance monitoring utilities

Summary by CodeRabbit

  • New Features

    • Introduced customizable ProgressBar, ChatMinimizedOrb, DraggableDivider, OptimizedDraggableDivider, UltraOptimizedDraggableDivider, OnlineStatusIndicator, OnlineStatusDot, OnlineStatusStrip, and UserPill components for enhanced UI interactivity and status display.
    • Added a hook for real-time online/offline status tracking.
    • Implemented a performance monitoring utility for tracking resize operations and IPC efficiency.
  • Style

    • Added new CSS stylesheets for ProgressBar and UltraOptimizedDraggableDivider, providing visually appealing and accessible UI elements.

- Add optimized draggable dividers for panel resizing
- Add progress bar component
- Add online status indicators
- Add chat minimized orb
- Add user pill component
- Add performance monitor utility
- Add online status hook
@coderabbitai
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coderabbitai bot commented Jul 11, 2025

Walkthrough

This update introduces several new UI components and utility hooks for an Electron app's renderer, focusing on draggable dividers, online status indicators, a progress bar, and user information display. It also adds a performance monitoring utility for resize operations, along with associated CSS stylesheets and animation effects for enhanced user experience.

Changes

File(s) Change Summary
ProgressBar.css, ProgressBar.tsx New ProgressBar component and stylesheet with support for variants, indeterminate state, and animated transitions.
ChatMinimizedOrb.tsx New ChatMinimizedOrb component with enhanced visual effects, unread notification, and interactive animations.
DraggableDivider.tsx, OptimizedDraggableDivider.tsx, UltraOptimizedDraggableDivider.tsx Three new draggable divider components, each with increasing levels of performance optimization and custom resize handling.
UltraOptimizedDraggableDivider.css Stylesheet for ultra-optimized draggable divider, including accessibility and motion preferences.
OnlineStatusIndicator.tsx, OnlineStatusStrip.tsx New online status indicator components: icon/text, dot, and horizontal strip, all using a custom online status hook.
UserPill.tsx New UserPill component for displaying user info in a stylized pill format with multiple size options.
useOnlineStatus.ts New hook and utilities for tracking and subscribing to online/offline status.
performanceMonitor.ts New performance monitoring utility for tracking and logging resize and IPC metrics.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant UIComponent as UI Component (e.g., DraggableDivider, ProgressBar)
    participant PerformanceMonitor
    participant OnlineStatusHook

    User->>UIComponent: Interacts (e.g., drag, click)
    UIComponent->>PerformanceMonitor: startResize() (if applicable)
    UIComponent->>UIComponent: Update visual state (e.g., progress, drag)
    UIComponent->>PerformanceMonitor: endResize() (if applicable)
    UIComponent->>OnlineStatusHook: useOnlineStatus()
    OnlineStatusHook-->>UIComponent: Online/offline status
    UIComponent-->>User: Render updated UI
Loading

Poem

🐇
New bars to drag and flames that glow,
Online dots now let you know.
Performance tracked, the user’s seen,
With pills and orbs and status green.
A hop, a skip, new features land—
The rabbit’s touch is close at hand!

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@claude
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claude bot commented Jul 11, 2025

Claude finished @maceip's task —— View job


PR Review: UI Optimization Components and Performance Monitoring

I've completed a comprehensive review of this PR. Overall, the code shows good engineering practices with a strong focus on performance optimization, but there are several areas for improvement.

Todo List:

  • Analyze ProgressBar component (CSS + TSX)
  • Review DraggableDivider variants (3 different implementations)
  • Examine UI components (ChatMinimizedOrb, OnlineStatusIndicator, etc.)
  • Check custom hooks (useOnlineStatus)
  • Evaluate performance monitoring utilities
  • Check for potential bugs and issues
  • Assess security concerns
  • Evaluate test coverage
  • Provide final recommendations

🔍 Review Findings

Strengths

  • Excellent performance focus: Smart use of RAF, throttling, and debouncing
  • Good TypeScript usage: Proper interfaces and type safety
  • Accessibility considerations: ARIA labels, titles, and reduced motion support
  • Hardware acceleration: Smart use of transform: translateZ(0) and will-change
  • Proper cleanup: Event listeners and timers properly cleaned up
  • Responsive design: Media queries for high contrast and reduced motion

⚠️ Areas for Improvement

1. Code Quality & Architecture

  • Code duplication: Three similar draggable divider implementations (DraggableDivider, OptimizedDraggableDivider, UltraOptimizedDraggableDivider) - consider consolidating into one configurable component
  • Mixed styling approaches: Inline styles mixed with CSS classes (especially in ChatMinimizedOrb.tsx:15-28)
  • Hardcoded values: Magic numbers throughout (e.g., minWidth - 50, throttle delays)

2. Potential Bugs & Issues

Memory Leaks (UltraOptimizedDraggableDivider.tsx:11-69):

// Classes not properly cleaned up on unmount
class RAFThrottle {
  // Missing cleanup in component unmount
}

CSS Injection (ChatMinimizedOrb.tsx:45-111):

// Dynamic style injection could cause performance issues
{enhanced && (
  <style>{`
    @keyframes pulse-glow {
      // Inline styles injected into DOM
    }
  `}</style>
)}

Race Conditions (DraggableDivider.tsx:86-100):

// Multiple throttle/debounce functions could conflict
const throttledVisualResize = useMemo(() => throttle(...), []);
const debouncedFinalResize = useMemo(() => debounce(...), []);

3. Performance Considerations

Over-optimization: Three draggable divider variants suggest premature optimization. The "Ultra" variant (UltraOptimizedDraggableDivider.tsx) adds significant complexity for marginal gains.

Performance Monitoring Overhead (performanceMonitor.ts:63-84):

// This could impact performance in production
private startFrameMonitoring(): void {
  // RAF loop that measures every frame
}

4. Security Concerns

  • CSS injection: While benign, the dynamic style injection pattern could be problematic
  • No input validation: UserPill doesn't validate user data before displaying
  • Performance data exposure: Performance monitoring could leak timing information

5. Test Coverage

  • No tests provided: Zero test coverage for complex interaction patterns
  • No integration tests: Dragging behavior should be tested
  • No accessibility tests: A11y features should be verified

🔧 Recommendations

  1. Consolidate draggable dividers: Create one configurable component instead of three
  2. Extract styles: Move inline styles to CSS files
  3. Add proper cleanup: Ensure all classes and timers are cleaned up
  4. Add tests: Unit tests for components, integration tests for dragging
  5. Validate inputs: Add input validation for user data
  6. Consider production flags: Disable performance monitoring in production
  7. Review over-optimization: Consider if the complexity is justified

🎯 Priority Issues

  1. HIGH: Memory leak potential in UltraOptimizedDraggableDivider
  2. MEDIUM: Code duplication across draggable divider variants
  3. MEDIUM: Missing test coverage for complex interactions
  4. LOW: CSS injection approach in ChatMinimizedOrb

The code demonstrates strong performance engineering skills but would benefit from consolidation and testing. Consider whether the three draggable divider variants are truly necessary or if one well-configured component would suffice.


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Actionable comments posted: 9

🧹 Nitpick comments (12)
apps/electron-app/src/renderer/src/hooks/useOnlineStatus.ts (2)

18-19: Remove redundant status update call.

The updateOnlineStatus() call on line 19 is redundant since the state is already initialized with navigator.onLine on line 8.

-    // Check initial status
-    updateOnlineStatus();

7-28: Consider adding error handling for edge cases.

While the hook implementation is solid, consider adding error handling for environments where navigator.onLine might not be available, though this is unlikely in modern browsers.

 export function useOnlineStatus(): boolean {
-  const [isOnline, setIsOnline] = useState(navigator.onLine);
+  const [isOnline, setIsOnline] = useState(() => {
+    try {
+      return navigator.onLine;
+    } catch {
+      return true; // Default to online if navigator is unavailable
+    }
+  });

   useEffect(() => {
     const updateOnlineStatus = () => {
-      setIsOnline(navigator.onLine);
+      try {
+        setIsOnline(navigator.onLine);
+      } catch {
+        // Fallback to true if navigator is unavailable
+        setIsOnline(true);
+      }
     };
apps/electron-app/src/renderer/src/components/ui/OnlineStatusStrip.tsx (1)

17-22: Consider using consistent color system.

The component uses hardcoded hex colors while other components in this PR use Tailwind classes. Consider using Tailwind classes or CSS custom properties for consistency.

       style={{
         height: "2px",
         width: "100%",
-        backgroundColor: isOnline ? "#10b981" : "#ef4444",
+        backgroundColor: isOnline ? "rgb(16 185 129)" : "rgb(239 68 68)", // Tailwind green-500 and red-500
         transition: "background-color 0.3s ease",
       }}

Or alternatively, use CSS classes:

     <div
-      className={`online-status-strip ${className}`}
+      className={`online-status-strip ${className} ${isOnline ? 'bg-green-500' : 'bg-red-500'} transition-colors duration-300`}
       style={{
         height: "2px",
         width: "100%",
-        backgroundColor: isOnline ? "#10b981" : "#ef4444",
-        transition: "background-color 0.3s ease",
       }}
apps/electron-app/src/renderer/src/components/ui/UserPill.tsx (1)

45-56: Consider consistency improvements for styling approach.

The component mixes Tailwind classes with inline styles, which could be inconsistent. Also, the long className string affects readability.

Consider these improvements:

  1. Extract inline styles to Tailwind classes:
-     style={{
-       borderRadius: "6px",
-       border: "1px solid rgba(0, 0, 0, 0.08)",
-     }}
+     style={{ borderRadius: "6px" }}

And add border border-gray-200 to the className.

  1. Improve className readability:
-     className={`inline-flex items-center gap-2 bg-gray-100 text-gray-700 font-medium transition-colors ${sizeClasses[size]} ${className}`}
+     className={`
+       inline-flex items-center gap-2 
+       bg-gray-100 text-gray-700 font-medium 
+       transition-colors 
+       ${sizeClasses[size]} 
+       ${className}
+     `}
  1. Consider adding accessibility attributes:
     <div
+      role="status"
+      aria-label={`User: ${displayName}`}
       className={...}
apps/electron-app/src/renderer/src/components/ui/ChatMinimizedOrb.tsx (1)

153-167: Add accessibility and animation for notification dot.

The notification dot implementation is functional but could be enhanced:

         {hasUnreadMessages && (
           <div
+            id="unread-messages"
+            role="status"
+            aria-label="Unread messages"
             style={{
               position: "absolute",
               top: "-2px",
               right: "-2px",
-              width: "10px",
-              height: "10px",
+              width: THEME.sizes.notificationDot,
+              height: THEME.sizes.notificationDot,
               borderRadius: "50%",
-              backgroundColor: "#ef4444",
+              backgroundColor: THEME.colors.error,
               border: "2px solid white",
               zIndex: 10,
+              animation: "fadeIn 0.2s ease-in-out",
             }}
           />
         )}
apps/electron-app/src/renderer/src/components/common/ProgressBar.css (1)

26-42: Optimize gradient performance for smoother animations.

The gradient overlay adds visual depth but may impact performance during animations. Consider using a more efficient approach.

.progress-bar-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background-color: var(--progress-fill-bg, #3b82f6);
  border-radius: 4px;
  transition: width 0.3s ease-out;
+ /* Use transform for better performance */
+ will-change: width;
- /* Add a subtle gradient for depth */
- background-image: linear-gradient(
-   to right,
-   rgba(255, 255, 255, 0.1) 0%,
-   rgba(255, 255, 255, 0.2) 50%,
-   rgba(255, 255, 255, 0.1) 100%
- );
+ /* Use a simpler, more performant approach */
+ background-image: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
}
apps/electron-app/src/renderer/src/components/common/ProgressBar.tsx (2)

4-11: Enhance TypeScript interface with better documentation.

The interface is well-structured but could benefit from JSDoc comments for better developer experience.

interface ProgressBarProps {
+ /** Progress value from 0 to 100 */
  value: number; // 0-100
+ /** Optional title displayed above the progress bar */
  title?: string;
+ /** Optional label displayed below the progress bar */
  label?: string;
+ /** Additional CSS class names */
  className?: string;
+ /** Visual variant of the progress bar */
  variant?: "default" | "success" | "warning" | "danger";
+ /** Whether to show indeterminate loading animation */
  indeterminate?: boolean;
}

13-20: Consider adding React.memo for performance optimization.

The component re-renders on every prop change, which might be unnecessary for frequently updating progress values.

-export const ProgressBar: React.FC<ProgressBarProps> = ({
+export const ProgressBar = React.memo<ProgressBarProps>(({
  value,
  title,
  label,
  className = "",
  variant = "default",
  indeterminate = false,
-}) => {
+}) => {
  // ... component logic
-};
+});
+
+ProgressBar.displayName = 'ProgressBar';
apps/electron-app/src/renderer/src/utils/performanceMonitor.ts (1)

75-76: Remove or utilize the unused frameTimes array to prevent potential memory issues.

The frameTimes array is being populated but never used for any calculations. During long resize operations, this could accumulate unnecessary memory.

Either remove the array if it's not needed:

-      this.frameTimes.push(frameDuration);
       lastFrameTime = now;

Or add a size limit to prevent unbounded growth:

       this.frameTimes.push(frameDuration);
+      // Keep only last 100 frame times
+      if (this.frameTimes.length > 100) {
+        this.frameTimes.shift();
+      }
       lastFrameTime = now;
apps/electron-app/src/renderer/src/components/ui/DraggableDivider.tsx (2)

10-40: Consider using performance.now() for higher precision timing.

The throttle function would benefit from using performance.now() instead of Date.now() for more accurate timing measurements, especially for high-frequency operations.

-    const now = Date.now();
+    const now = performance.now();
     lastArgs = args;

     if (now - lastCall >= delay) {
       lastCall = now;
       fn(...args);
     } else {
       if (timer) {
         cancelAnimationFrame(timer);
       }

       timer = requestAnimationFrame(() => {
         if (lastArgs) {
-          lastCall = Date.now();
+          lastCall = performance.now();
           fn(...lastArgs);
           lastArgs = null;
         }
         timer = null;
       });
     }

65-221: Consider integrating performance monitoring for consistency with other divider components.

The UltraOptimizedDraggableDivider component uses the performanceMonitor utility to track resize operations, but this component doesn't. For consistency and better performance insights, consider adding performance monitoring.

Add the import at the top:

+import { performanceMonitor } from "../../utils/performanceMonitor";

Then update the mouse event handlers:

   const handleMouseDown = useCallback(
     (e: React.MouseEvent) => {
       e.preventDefault();
+      performanceMonitor.startResize();
       setIsDragging(true);
     const handleMouseUp = () => {
       if (isDragging) {
         setIsDragging(false);
         document.body.style.cursor = "";
         document.body.style.userSelect = "";

         // Ensure final width is set
         const finalWidth = visualWidth;
         onResize(finalWidth);
+        performanceMonitor.endResize();
       }
     };

Also track IPC calls in the debounced resize:

       debounce((width: number) => {
+        performanceMonitor.trackIPCCall();
         onResize(width);
       }, 50),
apps/electron-app/src/renderer/src/components/ui/UltraOptimizedDraggableDivider.tsx (1)

195-211: Consider more robust transform parsing and error handling.

The transform parsing logic could fail if the transform format changes or is not in the expected format.

       // Calculate final width from shadow position
       if (shadowElementRef.current) {
         const transform = shadowElementRef.current.style.transform;
         const match = transform.match(/translateX\(([-\d.]+)px\)/);
         if (match) {
           const offset = parseFloat(match[1]);
           const finalWidth = startWidthRef.current - offset;
           const clampedWidth = Math.max(
             minWidth,
             Math.min(maxWidth, finalWidth),
           );

           // Flush final value immediately
           smartDebounce.flush(clampedWidth);
+        } else {
+          // Fallback to last known width if transform parsing fails
+          smartDebounce.flush(lastCommittedWidth.current);
         }
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a75f9fd and bf6dbcb.

📒 Files selected for processing (12)
  • apps/electron-app/src/renderer/src/components/common/ProgressBar.css (1 hunks)
  • apps/electron-app/src/renderer/src/components/common/ProgressBar.tsx (1 hunks)
  • apps/electron-app/src/renderer/src/components/ui/ChatMinimizedOrb.tsx (1 hunks)
  • apps/electron-app/src/renderer/src/components/ui/DraggableDivider.tsx (1 hunks)
  • apps/electron-app/src/renderer/src/components/ui/OnlineStatusIndicator.tsx (1 hunks)
  • apps/electron-app/src/renderer/src/components/ui/OnlineStatusStrip.tsx (1 hunks)
  • apps/electron-app/src/renderer/src/components/ui/OptimizedDraggableDivider.tsx (1 hunks)
  • apps/electron-app/src/renderer/src/components/ui/UltraOptimizedDraggableDivider.css (1 hunks)
  • apps/electron-app/src/renderer/src/components/ui/UltraOptimizedDraggableDivider.tsx (1 hunks)
  • apps/electron-app/src/renderer/src/components/ui/UserPill.tsx (1 hunks)
  • apps/electron-app/src/renderer/src/hooks/useOnlineStatus.ts (1 hunks)
  • apps/electron-app/src/renderer/src/utils/performanceMonitor.ts (1 hunks)
🧰 Additional context used
🧠 Learnings (1)
apps/electron-app/src/renderer/src/components/ui/UserPill.tsx (1)
Learnt from: maceip
PR: co-browser/vibe#38
File: apps/electron-app/src/main/services/profile-service.ts:131-135
Timestamp: 2025-07-01T18:24:21.101Z
Learning: In the ProfileService implementation (apps/electron-app/src/main/services/profile-service.ts), the team prefers to keep the updateProfile method simple without filtering out immutable fields like `id` and `createdAt` from updates, since these fields are not currently being used elsewhere in the codebase. They prioritize code simplicity over theoretical protection against field overwriting.
🧬 Code Graph Analysis (2)
apps/electron-app/src/renderer/src/components/ui/OnlineStatusStrip.tsx (1)
apps/electron-app/src/renderer/src/hooks/useOnlineStatus.ts (1)
  • useOnlineStatus (7-28)
apps/electron-app/src/renderer/src/components/ui/OnlineStatusIndicator.tsx (1)
apps/electron-app/src/renderer/src/hooks/useOnlineStatus.ts (1)
  • useOnlineStatus (7-28)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)
  • GitHub Check: claude-review
  • GitHub Check: quality
🔇 Additional comments (17)
apps/electron-app/src/renderer/src/hooks/useOnlineStatus.ts (1)

30-60: LGTM! Utility functions are well-implemented.

The utility functions provide good imperative and subscription-based alternatives to the hook. The cleanup function pattern is properly implemented.

apps/electron-app/src/renderer/src/components/ui/OnlineStatusStrip.tsx (1)

23-24: Excellent accessibility implementation.

The component includes proper title and aria-label attributes that dynamically reflect the connection status. This ensures good accessibility for users with assistive technologies.

apps/electron-app/src/renderer/src/components/ui/OnlineStatusIndicator.tsx (3)

4-33: Well-structured component with good flexibility.

The OnlineStatusIndicator component is well-implemented with:

  • Clear TypeScript interface
  • Proper default values
  • Conditional rendering based on online status
  • Good use of Tailwind classes for consistent styling
  • Flexible showText prop for different use cases

35-49: Excellent minimal status indicator.

The OnlineStatusDot component provides a clean, minimal alternative with proper accessibility via the title attribute. The implementation is concise and follows the same patterns as the main indicator.


1-2: lucide-react dependency confirmed

The lucide-react package is declared under dependencies in apps/electron-app/package.json at version ^0.511.0. No further action is needed.

• apps/electron-app/package.json:
– dependencies → “lucide-react”: “^0.511.0”

apps/electron-app/src/renderer/src/components/ui/UserPill.tsx (6)

1-2: LGTM!

The import statement is clean and appropriate for the component's needs.


3-12: Well-structured interface definition.

The TypeScript interface provides good type safety with appropriate optional properties and constrained size values.


14-17: Good documentation practice.

The JSDoc comment provides helpful context about the component's purpose and integration with Privy authentication.


24-34: Consistent size variant implementation.

The size mapping objects provide a clean way to handle different component sizes with appropriate scaling for both padding and icons.


36-38: Appropriate guard clause.

The early return pattern correctly handles unauthenticated users and missing user data.


40-43: Fix potential null reference error in address slicing.

The address slicing logic doesn't check if address exists before calling slice(), which could cause a runtime error.

  const displayName =
    user.name ||
    user.email ||
-   user.address?.slice(0, 6) + "..." + user.address?.slice(-4);
+   (user.address ? user.address.slice(0, 6) + "..." + user.address.slice(-4) : undefined);

Likely an incorrect or invalid review comment.

apps/electron-app/src/renderer/src/components/ui/ChatMinimizedOrb.tsx (1)

1-8: LGTM! Clean imports and well-defined props interface.

The imports are appropriate and the props interface is well-structured with clear types and optional properties.

apps/electron-app/src/renderer/src/components/common/ProgressBar.css (3)

1-5: LGTM: Clean container structure.

The basic container setup is well-structured with proper full-width layout.


84-95: LGTM: Well-structured color variants.

The color variant implementation using CSS custom properties is clean and maintainable.


70-82: Optimize indeterminate animation performance.

The animation uses transform: translateX() which is good for performance, but the width: 30% !important could be problematic.

.progress-bar-fill.indeterminate {
- width: 30% !important;
+ width: 30%;
  animation: progress-indeterminate 1.5s ease-in-out infinite;
+ /* Use transform-origin for better performance */
+ transform-origin: left center;
}

@keyframes progress-indeterminate {
  0% {
    transform: translateX(-100%);
  }
+ 50% {
+   transform: translateX(0%);
+ }
  100% {
    transform: translateX(400%);
  }
}

Likely an incorrect or invalid review comment.

apps/electron-app/src/renderer/src/components/ui/UltraOptimizedDraggableDivider.css (1)

1-51: Well-structured CSS with excellent performance optimizations and accessibility support!

The CSS implementation demonstrates best practices:

  • GPU-accelerated transforms for hover effects
  • Proper touch interaction handling
  • Comprehensive accessibility support for high contrast and reduced motion preferences
apps/electron-app/src/renderer/src/components/ui/UltraOptimizedDraggableDivider.tsx (1)

79-312: Excellent implementation with GPU-accelerated transforms and proper performance monitoring!

This is the most optimized implementation among the three divider components, with:

  • GPU-accelerated transforms for smooth visual feedback
  • Proper performance monitoring integration
  • Advanced event handling with passive and capture options
  • Clean class-based throttle and debounce utilities

Comment on lines +10 to +171
export const ChatMinimizedOrb: React.FC<ChatMinimizedOrbProps> = ({
onClick,
hasUnreadMessages = false,
enhanced = false,
}) => {
const baseStyles = {
position: "relative" as const,
width: "32px",
height: "32px",
borderRadius: "50%",
backgroundColor: "#10b981",
border: "none",
cursor: "pointer",
display: "flex",
alignItems: "center",
justifyContent: "center",
transition: "all 0.2s ease",
marginRight: "12px",
};

const enhancedStyles = enhanced
? {
...baseStyles,
boxShadow:
"0 0 20px rgba(16, 185, 129, 0.6), 0 0 40px rgba(16, 185, 129, 0.4), 0 0 60px rgba(16, 185, 129, 0.2)",
animation: "pulse-glow 2s infinite",
}
: {
...baseStyles,
boxShadow: "0 2px 4px rgba(0, 0, 0, 0.1)",
};

return (
<>
{enhanced && (
<style>{`
@keyframes pulse-glow {
0%, 100% {
box-shadow: 0 0 20px rgba(16, 185, 129, 0.6), 0 0 40px rgba(16, 185, 129, 0.4), 0 0 60px rgba(16, 185, 129, 0.2);
transform: scale(1);
}
50% {
box-shadow: 0 0 30px rgba(16, 185, 129, 0.8), 0 0 50px rgba(16, 185, 129, 0.6), 0 0 70px rgba(16, 185, 129, 0.4);
transform: scale(1.05);
}
}

@keyframes flame-flicker {
0%, 100% { opacity: 0.8; transform: translateY(0px) scale(1); }
25% { opacity: 1; transform: translateY(-2px) scale(1.1); }
50% { opacity: 0.9; transform: translateY(-1px) scale(0.95); }
75% { opacity: 1; transform: translateY(-3px) scale(1.05); }
}

.flame {
position: absolute;
background: linear-gradient(to top, #ff6b35, #f7931e, #ffde59);
border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
animation: flame-flicker 1.5s infinite ease-in-out;
}

.flame-1 {
width: 8px;
height: 12px;
top: -6px;
left: 6px;
animation-delay: 0s;
}

.flame-2 {
width: 6px;
height: 10px;
top: -4px;
right: 6px;
animation-delay: 0.3s;
}

.flame-3 {
width: 10px;
height: 14px;
top: -8px;
left: 50%;
transform: translateX(-50%);
animation-delay: 0.6s;
}

.flame-4 {
width: 7px;
height: 11px;
top: -5px;
left: 2px;
animation-delay: 0.9s;
}

.flame-5 {
width: 5px;
height: 9px;
top: -3px;
right: 2px;
animation-delay: 1.2s;
}
`}</style>
)}

<button
onClick={onClick}
className="chat-minimized-orb"
style={enhancedStyles}
onMouseEnter={e => {
if (enhanced) {
e.currentTarget.style.transform = "scale(1.15)";
e.currentTarget.style.boxShadow =
"0 0 35px rgba(16, 185, 129, 0.8), 0 0 55px rgba(16, 185, 129, 0.6), 0 0 75px rgba(16, 185, 129, 0.4)";
} else {
e.currentTarget.style.transform = "scale(1.1)";
e.currentTarget.style.boxShadow = "0 4px 8px rgba(0, 0, 0, 0.15)";
}
}}
onMouseLeave={e => {
if (enhanced) {
e.currentTarget.style.transform = "scale(1.05)";
e.currentTarget.style.boxShadow =
"0 0 30px rgba(16, 185, 129, 0.8), 0 0 50px rgba(16, 185, 129, 0.6), 0 0 70px rgba(16, 185, 129, 0.4)";
} else {
e.currentTarget.style.transform = "scale(1)";
e.currentTarget.style.boxShadow = "0 2px 4px rgba(0, 0, 0, 0.1)";
}
}}
title={enhanced ? "Open Chat (Enhanced Mode)" : "Open Chat"}
>
{/* Green flames around the orb when enhanced */}
{enhanced && (
<>
<div className="flame flame-1" />
<div className="flame flame-2" />
<div className="flame flame-3" />
<div className="flame flame-4" />
<div className="flame flame-5" />
</>
)}

<MessageCircle size={18} color="white" />

{hasUnreadMessages && (
<div
style={{
position: "absolute",
top: "-2px",
right: "-2px",
width: "10px",
height: "10px",
borderRadius: "50%",
backgroundColor: "#ef4444",
border: "2px solid white",
zIndex: 10,
}}
/>
)}
</button>
</>
);
};
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🛠️ Refactor suggestion

Consider architectural improvements for better maintainability.

The component is becoming quite complex and would benefit from refactoring:

  1. Extract flame animation logic into a separate component
  2. Use CSS modules or styled-components instead of inline styles
  3. Implement proper accessibility with ARIA attributes
  4. Add motion preferences for users with vestibular disorders

Consider this component structure:

// ChatMinimizedOrb.tsx - Main component
// FlameEffects.tsx - Flame animation logic
// ChatMinimizedOrb.module.css - Styles and animations
// useChatOrb.ts - Custom hook for interaction logic

This separation would improve:

  • Testability - easier to unit test individual parts
  • Maintainability - clear separation of concerns
  • Performance - better optimization opportunities
  • Accessibility - centralized accessibility logic

Would you like me to help implement this refactored architecture?

🤖 Prompt for AI Agents
In apps/electron-app/src/renderer/src/components/ui/ChatMinimizedOrb.tsx from
lines 10 to 171, the component is too complex and mixes styles, animation logic,
and interaction handling. To improve maintainability, refactor by extracting the
flame animation into a separate FlameEffects.tsx component, move all styles and
keyframes into a CSS module or styled-components file, create a custom hook
(useChatOrb.ts) to handle interaction logic like hover effects, and enhance
accessibility by adding ARIA attributes and respecting user motion preferences.
This modular approach will separate concerns, improve testability, and make the
component easier to maintain and extend.

Comment on lines +15 to +40
const baseStyles = {
position: "relative" as const,
width: "32px",
height: "32px",
borderRadius: "50%",
backgroundColor: "#10b981",
border: "none",
cursor: "pointer",
display: "flex",
alignItems: "center",
justifyContent: "center",
transition: "all 0.2s ease",
marginRight: "12px",
};

const enhancedStyles = enhanced
? {
...baseStyles,
boxShadow:
"0 0 20px rgba(16, 185, 129, 0.6), 0 0 40px rgba(16, 185, 129, 0.4), 0 0 60px rgba(16, 185, 129, 0.2)",
animation: "pulse-glow 2s infinite",
}
: {
...baseStyles,
boxShadow: "0 2px 4px rgba(0, 0, 0, 0.1)",
};
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🛠️ Refactor suggestion

Refactor inline styles for better performance and maintainability.

The current approach recreates style objects on every render, which impacts performance. Consider these improvements:

  1. Move styles outside the component to prevent recreation
  2. Use CSS variables for consistent theming
  3. Extract magic numbers into constants
+const THEME = {
+  colors: {
+    primary: '#10b981',
+    error: '#ef4444',
+    shadow: 'rgba(0, 0, 0, 0.1)',
+  },
+  sizes: {
+    orb: '32px',
+    icon: 18,
+    notificationDot: '10px',
+  },
+} as const;
+
+const baseStyles: React.CSSProperties = {
+  position: 'relative',
+  width: THEME.sizes.orb,
+  height: THEME.sizes.orb,
+  borderRadius: '50%',
+  backgroundColor: THEME.colors.primary,
+  border: 'none',
+  cursor: 'pointer',
+  display: 'flex',
+  alignItems: 'center',
+  justifyContent: 'center',
+  transition: 'all 0.2s ease',
+  marginRight: '12px',
+};

-  const baseStyles = {
-    position: "relative" as const,
-    width: "32px",
-    height: "32px",
-    borderRadius: "50%",
-    backgroundColor: "#10b981",
-    border: "none",
-    cursor: "pointer",
-    display: "flex",
-    alignItems: "center",
-    justifyContent: "center",
-    transition: "all 0.2s ease",
-    marginRight: "12px",
-  };
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
const baseStyles = {
position: "relative" as const,
width: "32px",
height: "32px",
borderRadius: "50%",
backgroundColor: "#10b981",
border: "none",
cursor: "pointer",
display: "flex",
alignItems: "center",
justifyContent: "center",
transition: "all 0.2s ease",
marginRight: "12px",
};
const enhancedStyles = enhanced
? {
...baseStyles,
boxShadow:
"0 0 20px rgba(16, 185, 129, 0.6), 0 0 40px rgba(16, 185, 129, 0.4), 0 0 60px rgba(16, 185, 129, 0.2)",
animation: "pulse-glow 2s infinite",
}
: {
...baseStyles,
boxShadow: "0 2px 4px rgba(0, 0, 0, 0.1)",
};
// Move these definitions outside of your component
const THEME = {
colors: {
primary: '#10b981',
error: '#ef4444',
shadow: 'rgba(0, 0, 0, 0.1)',
},
sizes: {
orb: '32px',
icon: 18,
notificationDot: '10px',
},
} as const;
const baseStyles: React.CSSProperties = {
position: 'relative',
width: THEME.sizes.orb,
height: THEME.sizes.orb,
borderRadius: '50%',
backgroundColor: THEME.colors.primary,
border: 'none',
cursor: 'pointer',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
transition: 'all 0.2s ease',
marginRight: '12px',
};
const enhancedStyles = enhanced
? {
...baseStyles,
boxShadow:
'0 0 20px rgba(16, 185, 129, 0.6), 0 0 40px rgba(16, 185, 129, 0.4), 0 0 60px rgba(16, 185, 129, 0.2)',
animation: 'pulse-glow 2s infinite',
}
: {
...baseStyles,
boxShadow: '0 2px 4px rgba(0, 0, 0, 0.1)',
};
🤖 Prompt for AI Agents
In apps/electron-app/src/renderer/src/components/ui/ChatMinimizedOrb.tsx between
lines 15 and 40, the inline style objects are recreated on every render, which
harms performance. To fix this, move the base style objects and constants like
sizes, colors, and shadows outside the component function so they are defined
once. Replace hardcoded values with constants or CSS variables for easier
theming and maintainability. Then, inside the component, reference these
pre-defined styles instead of recreating them each render.

Comment on lines +44 to +112
{enhanced && (
<style>{`
@keyframes pulse-glow {
0%, 100% {
box-shadow: 0 0 20px rgba(16, 185, 129, 0.6), 0 0 40px rgba(16, 185, 129, 0.4), 0 0 60px rgba(16, 185, 129, 0.2);
transform: scale(1);
}
50% {
box-shadow: 0 0 30px rgba(16, 185, 129, 0.8), 0 0 50px rgba(16, 185, 129, 0.6), 0 0 70px rgba(16, 185, 129, 0.4);
transform: scale(1.05);
}
}

@keyframes flame-flicker {
0%, 100% { opacity: 0.8; transform: translateY(0px) scale(1); }
25% { opacity: 1; transform: translateY(-2px) scale(1.1); }
50% { opacity: 0.9; transform: translateY(-1px) scale(0.95); }
75% { opacity: 1; transform: translateY(-3px) scale(1.05); }
}

.flame {
position: absolute;
background: linear-gradient(to top, #ff6b35, #f7931e, #ffde59);
border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
animation: flame-flicker 1.5s infinite ease-in-out;
}

.flame-1 {
width: 8px;
height: 12px;
top: -6px;
left: 6px;
animation-delay: 0s;
}

.flame-2 {
width: 6px;
height: 10px;
top: -4px;
right: 6px;
animation-delay: 0.3s;
}

.flame-3 {
width: 10px;
height: 14px;
top: -8px;
left: 50%;
transform: translateX(-50%);
animation-delay: 0.6s;
}

.flame-4 {
width: 7px;
height: 11px;
top: -5px;
left: 2px;
animation-delay: 0.9s;
}

.flame-5 {
width: 5px;
height: 9px;
top: -3px;
right: 2px;
animation-delay: 1.2s;
}
`}</style>
)}
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🛠️ Refactor suggestion

Move animations to external CSS and add accessibility considerations.

Injecting CSS via <style> tags is not a React best practice and can cause several issues:

  1. Global namespace pollution - flame classes could conflict with other components
  2. Performance impact - style tags are recreated on every render
  3. Accessibility concerns - no prefers-reduced-motion support

Solution: Move to CSS modules or styled-components

Create a separate CSS file or use CSS-in-JS:

+// Move to ChatMinimizedOrb.module.css
+@keyframes pulse-glow {
+  0%, 100% {
+    box-shadow: 0 0 20px rgba(16, 185, 129, 0.6), 0 0 40px rgba(16, 185, 129, 0.4), 0 0 60px rgba(16, 185, 129, 0.2);
+    transform: scale(1);
+  }
+  50% {
+    box-shadow: 0 0 30px rgba(16, 185, 129, 0.8), 0 0 50px rgba(16, 185, 129, 0.6), 0 0 70px rgba(16, 185, 129, 0.4);
+    transform: scale(1.05);
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .chatOrb, .flame {
+    animation: none !important;
+  }
+}

-      {enhanced && (
-        <style>{`
-          @keyframes pulse-glow {
-            /* ... */
-          }
-          /* ... rest of CSS */
-        `}</style>
-      )}

Committable suggestion skipped: line range outside the PR's diff.

🤖 Prompt for AI Agents
In apps/electron-app/src/renderer/src/components/ui/ChatMinimizedOrb.tsx between
lines 44 and 112, the CSS animations and styles are injected directly via a
style tag inside the component, which causes global namespace pollution,
performance issues, and lacks accessibility support. To fix this, move all the
CSS animations and flame classes into an external CSS module or
styled-components file scoped to this component. Additionally, implement media
queries for prefers-reduced-motion to respect user accessibility preferences and
prevent animation if reduced motion is requested.

Comment on lines +114 to +138
<button
onClick={onClick}
className="chat-minimized-orb"
style={enhancedStyles}
onMouseEnter={e => {
if (enhanced) {
e.currentTarget.style.transform = "scale(1.15)";
e.currentTarget.style.boxShadow =
"0 0 35px rgba(16, 185, 129, 0.8), 0 0 55px rgba(16, 185, 129, 0.6), 0 0 75px rgba(16, 185, 129, 0.4)";
} else {
e.currentTarget.style.transform = "scale(1.1)";
e.currentTarget.style.boxShadow = "0 4px 8px rgba(0, 0, 0, 0.15)";
}
}}
onMouseLeave={e => {
if (enhanced) {
e.currentTarget.style.transform = "scale(1.05)";
e.currentTarget.style.boxShadow =
"0 0 30px rgba(16, 185, 129, 0.8), 0 0 50px rgba(16, 185, 129, 0.6), 0 0 70px rgba(16, 185, 129, 0.4)";
} else {
e.currentTarget.style.transform = "scale(1)";
e.currentTarget.style.boxShadow = "0 2px 4px rgba(0, 0, 0, 0.1)";
}
}}
title={enhanced ? "Open Chat (Enhanced Mode)" : "Open Chat"}
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🛠️ Refactor suggestion

Improve accessibility and performance of mouse interactions.

The current implementation has several issues:

  1. Direct style manipulation causes unnecessary reflows
  2. Missing accessibility features for keyboard users
  3. Inline event handlers are recreated on every render
+import { useCallback } from 'react';

+const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLButtonElement>) => {
+  e.currentTarget.classList.add(enhanced ? 'enhanced-hover' : 'normal-hover');
+}, [enhanced]);
+
+const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLButtonElement>) => {
+  e.currentTarget.classList.remove(enhanced ? 'enhanced-hover' : 'normal-hover');
+}, [enhanced]);

       <button
         onClick={onClick}
-        className="chat-minimized-orb"
+        className={`chat-minimized-orb ${enhanced ? 'enhanced' : ''}`}
         style={enhancedStyles}
-        onMouseEnter={e => {
-          if (enhanced) {
-            e.currentTarget.style.transform = "scale(1.15)";
-            e.currentTarget.style.boxShadow =
-              "0 0 35px rgba(16, 185, 129, 0.8), 0 0 55px rgba(16, 185, 129, 0.6), 0 0 75px rgba(16, 185, 129, 0.4)";
-          } else {
-            e.currentTarget.style.transform = "scale(1.1)";
-            e.currentTarget.style.boxShadow = "0 4px 8px rgba(0, 0, 0, 0.15)";
-          }
-        }}
-        onMouseLeave={e => {
-          if (enhanced) {
-            e.currentTarget.style.transform = "scale(1.05)";
-            e.currentTarget.style.boxShadow =
-              "0 0 30px rgba(16, 185, 129, 0.8), 0 0 50px rgba(16, 185, 129, 0.6), 0 0 70px rgba(16, 185, 129, 0.4)";
-          } else {
-            e.currentTarget.style.transform = "scale(1)";
-            e.currentTarget.style.boxShadow = "0 2px 4px rgba(0, 0, 0, 0.1)";
-          }
-        }}
+        onMouseEnter={handleMouseEnter}
+        onMouseLeave={handleMouseLeave}
+        onKeyDown={(e) => {
+          if (e.key === 'Enter' || e.key === ' ') {
+            e.preventDefault();
+            onClick();
+          }
+        }}
+        aria-label={enhanced ? "Open Chat (Enhanced Mode)" : "Open Chat"}
+        aria-describedby={hasUnreadMessages ? "unread-messages" : undefined}
         title={enhanced ? "Open Chat (Enhanced Mode)" : "Open Chat"}
       >

Committable suggestion skipped: line range outside the PR's diff.

🤖 Prompt for AI Agents
In apps/electron-app/src/renderer/src/components/ui/ChatMinimizedOrb.tsx between
lines 114 and 138, avoid direct style manipulation inside onMouseEnter and
onMouseLeave handlers to prevent unnecessary reflows. Instead, use CSS classes
to handle the style changes and toggle these classes in the event handlers. Add
keyboard accessibility by supporting focus and keyboard events like onFocus and
onBlur to apply the same visual effects as mouse interactions. Finally, define
the event handler functions outside the JSX to prevent recreating them on every
render, improving performance.

Comment on lines +17 to +24
.progress-bar-track {
position: relative;
width: 100%;
height: 8px;
background-color: var(--progress-track-bg, #e5e7eb);
border-radius: 4px;
overflow: hidden;
}
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🛠️ Refactor suggestion

Consider accessibility improvements for the progress bar track.

The track styling is well-implemented with proper positioning and visual styling. However, consider adding accessibility enhancements.

.progress-bar-track {
  position: relative;
  width: 100%;
  height: 8px;
  background-color: var(--progress-track-bg, #e5e7eb);
  border-radius: 4px;
  overflow: hidden;
+ /* Ensure sufficient contrast for accessibility */
+ box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.1);
}
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
.progress-bar-track {
position: relative;
width: 100%;
height: 8px;
background-color: var(--progress-track-bg, #e5e7eb);
border-radius: 4px;
overflow: hidden;
}
.progress-bar-track {
position: relative;
width: 100%;
height: 8px;
background-color: var(--progress-track-bg, #e5e7eb);
border-radius: 4px;
overflow: hidden;
/* Ensure sufficient contrast for accessibility */
box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.1);
}
🤖 Prompt for AI Agents
In apps/electron-app/src/renderer/src/components/common/ProgressBar.css around
lines 17 to 24, the progress bar track styling lacks accessibility features. To
improve accessibility, add ARIA roles and properties in the related component
code to ensure screen readers can interpret the progress bar correctly.
Additionally, consider using sufficient color contrast and focus indicators in
the CSS to support users with visual impairments.

Comment on lines +21 to +22
// Ensure value is between 0 and 100
const clampedValue = Math.max(0, Math.min(100, value));
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🛠️ Refactor suggestion

Add validation for non-numeric values.

The value clamping logic is good, but it should handle edge cases like NaN or non-numeric values more robustly.

- // Ensure value is between 0 and 100
- const clampedValue = Math.max(0, Math.min(100, value));
+ // Ensure value is between 0 and 100 and handle edge cases
+ const clampedValue = Math.max(0, Math.min(100, isNaN(value) ? 0 : value));
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
// Ensure value is between 0 and 100
const clampedValue = Math.max(0, Math.min(100, value));
// Ensure value is between 0 and 100 and handle edge cases
const clampedValue = Math.max(0, Math.min(100, isNaN(value) ? 0 : value));
🤖 Prompt for AI Agents
In apps/electron-app/src/renderer/src/components/common/ProgressBar.tsx around
lines 21 to 22, the current clamping logic does not handle non-numeric values or
NaN properly. Add a validation step before clamping to check if the value is a
valid number; if not, default it to 0 or another safe fallback. Then apply the
clamping to ensure the value stays within 0 to 100.

Comment on lines +34 to +37
<div
className={`progress-bar-fill ${indeterminate ? "indeterminate" : ""}`}
style={indeterminate ? {} : { width: `${clampedValue}%` }}
/>
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🛠️ Refactor suggestion

Add accessibility attributes to the progress bar.

The component lacks proper ARIA attributes for screen readers and accessibility compliance.

<div
  className={`progress-bar-fill ${indeterminate ? "indeterminate" : ""}`}
  style={indeterminate ? {} : { width: `${clampedValue}%` }}
+ role="progressbar"
+ aria-valuenow={indeterminate ? undefined : clampedValue}
+ aria-valuemin="0"
+ aria-valuemax="100"
+ aria-label={label || title || "Progress"}
+ aria-valuetext={indeterminate ? "Loading..." : `${Math.round(clampedValue)}%`}
/>
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
<div
className={`progress-bar-fill ${indeterminate ? "indeterminate" : ""}`}
style={indeterminate ? {} : { width: `${clampedValue}%` }}
/>
<div
className={`progress-bar-fill ${indeterminate ? "indeterminate" : ""}`}
style={indeterminate ? {} : { width: `${clampedValue}%` }}
role="progressbar"
aria-valuenow={indeterminate ? undefined : clampedValue}
aria-valuemin="0"
aria-valuemax="100"
aria-label={label || title || "Progress"}
aria-valuetext={indeterminate ? "Loading..." : `${Math.round(clampedValue)}%`}
/>
🤖 Prompt for AI Agents
In apps/electron-app/src/renderer/src/components/common/ProgressBar.tsx around
lines 34 to 37, the progress bar div lacks ARIA attributes needed for
accessibility. Add appropriate ARIA attributes such as role="progressbar",
aria-valuemin="0", aria-valuemax="100", and aria-valuenow set to the current
progress value when determinate. For indeterminate state, include
aria-busy="true" or aria-valuetext to indicate ongoing progress. This will
improve screen reader support and accessibility compliance.

Comment on lines +27 to +29
<div className="progress-bar-title text-sm font-medium text-gray-700 mb-2">
{title}
</div>
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⚠️ Potential issue

Remove conflicting CSS classes.

The title element has both CSS module classes and Tailwind classes, which can cause conflicts and inconsistency.

{title && (
- <div className="progress-bar-title text-sm font-medium text-gray-700 mb-2">
+ <div className="progress-bar-title">
    {title}
  </div>
)}
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
<div className="progress-bar-title text-sm font-medium text-gray-700 mb-2">
{title}
</div>
{title && (
<div className="progress-bar-title">
{title}
</div>
)}
🤖 Prompt for AI Agents
In apps/electron-app/src/renderer/src/components/common/ProgressBar.tsx around
lines 27 to 29, the title div uses both CSS module classes and Tailwind CSS
classes, causing style conflicts. Remove the CSS module classes from this
element and keep only the Tailwind CSS classes to ensure consistent styling
without conflicts.

Comment on lines +65 to +239
export const OptimizedDraggableDivider: React.FC<
OptimizedDraggableDividerProps
> = ({ onResize, minWidth, maxWidth, currentWidth, onMinimize }) => {
const [isDragging, setIsDragging] = useState(false);
const [visualWidth, setVisualWidth] = useState(currentWidth);
const dividerRef = useRef<HTMLDivElement>(null);
const startXRef = useRef(0);
const startWidthRef = useRef(0);
const lastWidthRef = useRef(currentWidth);

// Update visual width when currentWidth changes (from external sources)
useEffect(() => {
if (!isDragging) {
setVisualWidth(currentWidth);
lastWidthRef.current = currentWidth;
}
}, [currentWidth, isDragging]);

// Ultra-smooth visual updates
const smoothVisualResize = useMemo(
() =>
smoothThrottle((width: number) => {
setVisualWidth(width);
}, 8), // 120fps for ultra-smooth visual feedback
[],
);

// Efficient final resize with debouncing
const efficientFinalResize = useMemo(
() =>
efficientDebounce((width: number) => {
if (Math.abs(width - lastWidthRef.current) > 1) {
lastWidthRef.current = width;
onResize(width);
}
}, 50), // Optimized debounce
[onResize],
);

const handleMouseDown = useCallback(
(e: React.MouseEvent) => {
e.preventDefault();
e.stopPropagation();

setIsDragging(true);
startXRef.current = e.clientX;
startWidthRef.current = currentWidth;

// Optimized cursor and selection handling
document.body.style.cursor = "col-resize";
document.body.style.userSelect = "none";
document.body.style.webkitUserSelect = "none";
},
[currentWidth],
);

useEffect(() => {
const handleMouseMove = (e: MouseEvent) => {
if (!isDragging) return;

const deltaX = startXRef.current - e.clientX;
const newWidth = startWidthRef.current + deltaX;

// Clamp the width within min/max bounds
const clampedWidth = Math.max(minWidth, Math.min(maxWidth, newWidth));

// Check if we should minimize
if (newWidth < minWidth - 50 && onMinimize) {
onMinimize();
setIsDragging(false);
document.body.style.cursor = "";
document.body.style.userSelect = "";
document.body.style.webkitUserSelect = "";
return;
}

// Update visual feedback immediately for ultra-smooth dragging
smoothVisualResize(clampedWidth);

// Efficient final resize with debouncing
efficientFinalResize(clampedWidth);
};

const handleMouseUp = () => {
if (isDragging) {
setIsDragging(false);
document.body.style.cursor = "";
document.body.style.userSelect = "";
document.body.style.webkitUserSelect = "";

// Ensure final width is set
const finalWidth = visualWidth;
if (Math.abs(finalWidth - lastWidthRef.current) > 1) {
lastWidthRef.current = finalWidth;
onResize(finalWidth);
}
}
};

if (isDragging) {
// Use passive listeners for better performance
document.addEventListener("mousemove", handleMouseMove, {
passive: true,
});
document.addEventListener("mouseup", handleMouseUp, {
passive: true,
});
}

return () => {
document.removeEventListener("mousemove", handleMouseMove);
document.removeEventListener("mouseup", handleMouseUp);
};
}, [
isDragging,
minWidth,
maxWidth,
smoothVisualResize,
efficientFinalResize,
onMinimize,
visualWidth,
onResize,
]);

return (
<div
ref={dividerRef}
className={`optimized-draggable-divider ${isDragging ? "dragging" : ""}`}
onMouseDown={handleMouseDown}
style={{
position: "absolute",
left: 0,
top: 0,
bottom: 0,
width: "6px",
cursor: "col-resize",
backgroundColor: "transparent",
transition: isDragging ? "none" : "background-color 0.2s ease",
zIndex: 100,
// Performance optimizations
willChange: "background-color",
transform: "translateZ(0)", // Force hardware acceleration
}}
onMouseEnter={e => {
if (!isDragging) {
e.currentTarget.style.backgroundColor = "rgba(0, 0, 0, 0.1)";
}
}}
onMouseLeave={e => {
if (!isDragging) {
e.currentTarget.style.backgroundColor = "transparent";
}
}}
>
<div
style={{
position: "absolute",
left: "2px",
top: "50%",
transform: "translateY(-50%)",
width: "2px",
height: "40px",
backgroundColor: isDragging
? "var(--input-focus)"
: "var(--chat-border-subtle)",
borderRadius: "1px",
transition: isDragging ? "none" : "all 0.2s ease",
opacity: isDragging ? 1 : 0.5,
// Performance optimizations
willChange: "background-color, opacity",
}}
/>
</div>
);
};
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🛠️ Refactor suggestion

Add performance monitoring and consider extracting common divider logic.

This component shares significant code with DraggableDivider but lacks performance monitoring integration. Consider:

  1. Adding performance monitoring similar to UltraOptimizedDraggableDivider
  2. Extracting common divider logic into a shared hook or base component to reduce code duplication

For performance monitoring, add:

+import { performanceMonitor } from "../../utils/performanceMonitor";

Update handlers:

       e.preventDefault();
       e.stopPropagation();
+      performanceMonitor.startResize();
       setIsDragging(true);
         if (Math.abs(finalWidth - lastWidthRef.current) > 1) {
           lastWidthRef.current = finalWidth;
           onResize(finalWidth);
         }
+        performanceMonitor.endResize();
       }

Track IPC calls:

       efficientDebounce((width: number) => {
         if (Math.abs(width - lastWidthRef.current) > 1) {
           lastWidthRef.current = width;
+          performanceMonitor.trackIPCCall();
           onResize(width);
         }
🤖 Prompt for AI Agents
In
apps/electron-app/src/renderer/src/components/ui/OptimizedDraggableDivider.tsx
from lines 65 to 239, the component lacks performance monitoring and duplicates
logic found in DraggableDivider. To fix this, extract shared divider logic such
as dragging state, width calculations, and event handlers into a reusable hook
or base component to reduce duplication. Then, integrate performance monitoring
similar to UltraOptimizedDraggableDivider by adding timing or telemetry calls
around resize handlers and IPC calls to track performance metrics. Update the
mouse event handlers to include these monitoring hooks without affecting
existing functionality.

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2 participants