The Chapter Enhancement UI provides a streamlined interface for enhancing novel chapters with two prominent buttons for the most recently used actions and a dropdown menu for additional features.

• Two prominent buttons display the last 2 used enhancement actions
• Default actions: "Enhance" and "Summarize"
• Auto-reordering: When you use a different action, it becomes a primary button
• Persistent storage: Last used actions are remembered across sessions

• Additional actions available in "More Actions" dropdown
• Current available actions:
  • 🔍 Analyze - Analyze themes and writing style
  • 💡 Suggestions - Get improvement suggestions
  • 🌐 Translate - Translate to different language
  • 📝 Grammar Check - Check and fix grammar issues
  • 🎨 Style Check - Improve writing style
  • 💬 Dialogue - Enhance dialogue quality

• Chapter page detection: Automatically detects chapter pages using:
  • URL patterns (/chapter-\d+, /ch-\d+, /part-\d+, etc.)
  • Novel website domains (fanfiction.net, royalroad.com, etc.)
  • Content analysis (word count, structure)
• Fallback: Uses floating action button for non-chapter pages

• Smart insertion: Finds the best position to insert the UI
• Content-aware: Looks for chapter content containers
• Fallback positioning: Uses document body if no content area found

1. src/content/index.ts

   • Added ChapterEnhancementUI integration
   • Chapter page detection logic
   • Content insertion point detection
   • Action handling and mapping

2. src/utils/ChapterEnhancementUI.ts

   • Complete UI implementation
   • Action management and persistence
   • Event handling
   • Processing state management

3. src/styles/content.css

   • Complete styling for the enhancement bar
   • Responsive design with dark theme support
   • Button and dropdown styling

4. manifest.json

   • Added CSS file to content_scripts

5. webpack.config.js

   • Added CSS copying to build process

class ChapterEnhancementUI {
  // Create UI at specified insertion point
  createUI(insertionPoint: InsertionPoint): HTMLElement

  // Set callback for action events
  setActionCallback(callback: (action: string) => void): void

  // Show/hide processing state
  showProcessing(actionLabel?: string): void
  hideProcessing(): void

  // Manage UI lifecycle
  remove(): void
  isVisible(): boolean
}

// Chapter detection
isChapterPage(): boolean

// UI creation
createChapterEnhancementUI(): void
createEnhancementUI(): void

// Action handling
handleChapterAction(action: string): Promise<void>

1. Page Load: Content script analyzes the page
2. Detection: Checks if it's a chapter page using multiple criteria
3. UI Creation: Creates ChapterEnhancementUI if chapter detected
4. Positioning: Finds best insertion point for the UI
5. Event Handling: Sets up action callbacks
6. Action Processing: Maps UI actions to existing enhancement logic
7. State Management: Updates last used actions and persists to storage

A test page (test-chapter-ui.html) is available that simulates a chapter page with:

• Proper chapter content structure
• Mock UI creation for standalone testing
• Action button functionality testing
• Dropdown menu interaction

1. Improved Accessibility: No need to open dropdown for common actions
2. Personalized Experience: UI adapts to user's most common actions
3. Better UX: Prominent buttons for quick access
4. Context Awareness: Only appears on relevant chapter pages
5. Consistent Design: Matches extension's overall design language

1. Customizable Actions: Allow users to configure which actions appear as primary buttons
2. Keyboard Shortcuts: Add hotkeys for quick action triggering
3. Action History: Show recent actions in a separate section
4. Smart Suggestions: Recommend actions based on content type
5. Batch Operations: Allow multiple actions on the same content