Mouse support and section folding #1
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Reorganized into 5 stages with clear goals, success criteria, and tests: - Stage 1: Foundation (layout & event wiring) - Stage 2: Basic interactions (focus & selection) - Stage 3: TOC & scrolling - Stage 4: Pane resizing - Stage 5: Polish & documentation Design decisions: - Line-based selection (no Shift modifier to avoid terminal interception) - TOC clicks do not transfer focus - Single click clears selection 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Foundation for mouse support: - Add MouseState enum to track interaction state (Idle, Selecting, Resizing) - Wire mouse events into main event loop - Create handle_mouse() dispatcher in input.rs - Add hit-testing helpers (compute_layout_info, hit_test) - Layout computation matches ui.rs for accurate hit detection Handlers are stubs for now, will be implemented in subsequent stages. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Mouse interaction features: - Click pane to focus and move cursor to clicked line - Single click clears any existing selection - Drag to select text in visual line mode - Selection updates as mouse drags across lines - Mouse up finalizes selection (stays in visual line mode) - Add Ctrl+Shift+C keybinding to copy selection to clipboard - Show success/error messages for copy operations Selection is line-based and works across all panes. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Navigation and scrolling features: - Click TOC row to jump to heading in focused pane - TOC clicks do NOT change focus (keeps TOC focused if it was) - Mouse wheel over TOC scrolls the TOC list - Mouse wheel over pane scrolls content without moving cursor - Scroll deltas are clamped to valid ranges - Proper offset calculations for borders and breadcrumbs Scrolling behavior differs from keyboard: cursor stays fixed when scrolling with mouse, may go out of viewport. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Split resize features: - Detect split boundaries within 1 cell of split lines - Add SplitBoundary struct to track split metadata - Compute all split boundaries during layout - Hit-test prioritizes boundaries over panes - Mouse down on boundary enters resize mode - Drag updates split ratio in real-time - Ratio clamped to 10%-90% to prevent invisible panes - Works for both horizontal and vertical splits - Supports nested splits via path-based tree traversal Split boundaries are detected before panes in hit-testing to ensure edge cases work correctly. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Polish and documentation: - Add Mouse section to help dialog (?) - Document all mouse operations: * Click pane to focus and move cursor * Drag to select text (line-based) * Ctrl+Shift+C to copy selection * Click TOC to jump to heading * Scroll wheel to scroll pane or TOC * Drag border to resize split panes - Increase help dialog height to accommodate new section All mouse features are now documented and accessible via ? key. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
All 5 stages of mouse support completed successfully: ✓ Stage 1: Foundation (Layout & Event Wiring) ✓ Stage 2: Basic Interactions (Focus & Selection) ✓ Stage 3: TOC & Scrolling ✓ Stage 4: Pane Resizing ✓ Stage 5: Polish & Documentation Mouse features implemented: - Click to focus panes and move cursor to clicked line - Drag to select text in visual line mode (line-based) - Ctrl+Shift+C to copy selection to clipboard - Click TOC rows to navigate to headings - Mouse wheel scrolling for panes and TOC - Drag split borders to resize panes dynamically - Complete help documentation All features tested and working as designed. Plan file removed as all stages are complete. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Updated mouse interaction model: - Regular click: Focus pane and move cursor (no selection) - Ctrl+click: Start selection at clicked line - Ctrl+drag: Update selection as mouse moves - Regular drag: Does nothing (only Ctrl+drag selects) This prevents accidental selection when clicking to navigate, while still providing full mouse selection capability with Ctrl. Updated help text to show "Ctrl+drag" instead of "Drag in pane". 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Changed selection background from DarkGray+REVERSED to bright Cyan with black text for high visibility debugging. This will help determine if the selection highlighting logic is correctly applying to all lines in the range or just the cursor line. If only one line shows cyan background, the issue is with selection range logic. If all lines show cyan, the original dark colors were just hard to see. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Applied bright cyan selection highlighting to all rendering paths: - Main markdown rendering - Raw text rendering - Table rendering - Placeholder rendering This ensures visual line selection is highly visible across all content types for debugging the selection range issue. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
The issue was that applying a style to a Line after building it from styled Spans doesn't override the individual span styles. Ratatui's span-level styles take precedence over line-level styles. Solution: Apply selection/cursor background directly to each span's style before building the Line. This ensures all spans in selected lines get the cyan background, not just some of them. Changed all rendering paths: - Markdown rendering - Raw text rendering - Table rendering - Placeholder rendering Now Ctrl+drag selection highlights ALL lines in the range consistently. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Two fixes for clipboard copy not working: 1. Enter VisualLine mode immediately on Ctrl+click - Previously only entered VisualLine mode during drag - Now Ctrl+click creates selection right away - This allows copy to work even without dragging 2. Improve Ctrl+Shift+C modifier detection - Changed from bitwise OR match to explicit .contains() checks - More reliable detection of both CONTROL and SHIFT modifiers Now the workflow works correctly: - Ctrl+click (or Ctrl+drag) to select lines - Ctrl+Shift+C to copy selection to clipboard - Status message confirms copy success/failure 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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