[FEATURE] Mouse wheel scroll in fullscreen TUI only affects input/history region, not transcript pane
Preflight Checklist
- [x] I have searched existing requests and this feature hasn't been requested yet
- [x] This is a single feature request (not multiple features)
Problem Statement
Description
In fullscreen rendering mode (confirmed via /tui fullscreen — "Already using the fullscreen renderer"), mouse wheel scrolling only scrolls the bottom input/history region. It does not scroll the transcript/output pane above it.
Environment
- Terminal: iTerm2 (also reproduces inside tmux)
- OS: macOS
- Rendering mode: fullscreen (bubbletea/lipgloss-based TUI)
- No trackpad/mouse remapping utilities installed; scrolling works normally in other terminal apps and non-terminal apps (e.g. Safari)
Steps to reproduce
- Start Claude Code, confirm fullscreen renderer is active (/tui fullscreen)
- Generate enough conversation output to make the transcript pane scrollable
- Scroll with the mouse wheel over the transcript pane
Expected behavior
Mouse wheel scroll over the transcript pane scrolls the transcript.
Actual behavior
Mouse wheel scroll appears to only affect the input/history region at the bottom; the transcript pane above does not respond to the mouse wheel.
Workaround found
Ctrl+O opens a separate transcript viewer with full keyboard navigation (arrows, Page Up/Down, {/}), but there's no way to scroll the transcript pane directly with the mouse while staying in the normal fullscreen view.
Request
Route mouse wheel scroll events to whichever pane the cursor is over (transcript vs. input), or add a setting to control this.
Proposed Solution
No solution, see above problem statement.
Alternative Solutions
_No response_
Priority
Medium - Would be very helpful
Feature Category
Interactive mode (TUI)
Use Case Example
see above problem statement for details.
Additional Context
_No response_