Files
CodeNomad/packages/ui
VooDisss 9d9a6a79ec Git diff monaco redesign (#304)
## Summary

Fixes #303.

This PR redesigns the Git Changes Monaco diff gutter so unified and
split view both use a more intentional, space-efficient Monaco
presentation while preserving Monaco's performance on large diffs.

The final behavior includes:

- `Compact` and `Normal` gutter modes for Git Changes
- dynamic gutter sizing based on actual line-number digit counts
- independent original/modified number-column sizing where needed
- split-view fixes for both wasted left inset and line-number/sign
overlap
- persisted gutter-mode selection
- localized user-facing labels for the control

## Visual comparison

### Unified view before

<img width="465" height="353" alt="Unified view before"
src="https://github.com/user-attachments/assets/0c061f25-f20a-4127-a85d-aee1161611c7"
/>

### Unified view after

<img width="634" height="240" alt="Unified view after"
src="https://github.com/user-attachments/assets/f2dfd952-89ed-4fdd-83db-a05f19f023b2"
/>

### Split view before

<img width="596" height="335" alt="Split view before"
src="https://github.com/user-attachments/assets/09bfbe41-9438-4801-b181-49a9d19d5bb8"
/>

### Split view after

<img width="640" height="338" alt="Split view after"
src="https://github.com/user-attachments/assets/fc3618ef-474f-4217-bb21-5ffd53eb4e01"
/>

<!-- If you want to replace these screenshots later, keep the four
sections above and swap the image URLs. -->

## What changed

### Unified view

- added two Git Changes Monaco gutter presentations:
  - `Compact`
  - `Normal`
- kept compact as the tighter single-column-feel unified gutter
- kept normal as the wider Monaco-style unified gutter
- made unified gutter sizing respond to actual line-number digit counts
instead of fixed assumptions
- made normal mode size the visible number columns independently when
one side needs more width than the other

### Split view

- added dynamic split gutter sizing derived from actual before/after
line counts
- made split original and modified number columns size independently
- fixed the modified-pane overlap where larger line numbers could
collide with the `+` lane
- fixed the original-pane wasted left inset caused by Monaco reserving
an empty original-side glyph-margin lane

### Persistence and UI

- persisted the selected gutter mode in preferences so it survives
reloads
- moved the gutter-mode control out of the Git Changes toolbar and into
Appearance settings
- renamed the visible settings options to `Compact` and `Normal`

### i18n

- removed hardcoded user-facing gutter toggle strings
- added localized keys for the gutter control labels and titles used by
the Git Changes surface

## Implementation notes

- Monaco remains the active Git Changes renderer throughout
- gutter sizing logic is centralized in
`packages/ui/src/components/file-viewer/monaco-diff-viewer.tsx`
- CSS is used only for narrow presentation adjustments such as the 4px
left inset and the split original-pane glyph-margin correction
- the persisted gutter-mode preference is the source of truth for the
selected presentation

## Review focus

- unified `Compact` mode should feel tight without clipping or overlap
- unified `Normal` mode should remain wider and readable
- 3-digit and 4-digit line numbers should not collide with the sign lane
- split original pane should no longer show wasted left inset before the
first visible number column
- split modified pane should not leave conspicuous dead space or collide
with the `+` lane as digit counts grow
- selected gutter mode should persist after reload

---------

Co-authored-by: Shantur Rathore <i@shantur.com>
2026-04-17 17:04:10 +01:00
..
2026-04-17 17:04:10 +01:00
2026-04-16 08:42:33 +01:00
2025-12-06 12:17:33 +00:00

CodeNomad UI

This package contains the frontend user interface for CodeNomad, built with SolidJS and Tailwind CSS.

Overview

The UI is designed to be a high-performance, low-latency cockpit for managing OpenCode sessions. It connects to the CodeNomad server (either running locally via CLI or embedded in the Electron app).

Features

  • SolidJS: Fine-grained reactivity for high performance.
  • Tailwind CSS: Utility-first styling for rapid development.
  • Vite: Fast build tool and dev server.

Development

To run the UI in standalone mode (connected to a running server):

npm run dev

This starts the Vite dev server at http://localhost:3000.

Building

To build the production assets:

npm run build

The output will be generated in the dist directory, which is then consumed by the Server or Electron app.

Debug Logging

The UI now routes all logging through a lightweight wrapper around debug. The logger exposes four namespaces that can be toggled at runtime:

  • sse Server-sent event transport and handlers
  • api HTTP/API calls and workspace lifecycle
  • session Session/model state, prompt handling, tool calls
  • actions User-driven interactions in UI components

You can enable or disable namespaces from DevTools (in dev or production builds) via the global window.codenomadLogger helpers:

window.codenomadLogger?.listLoggerNamespaces() // => [{ name: "sse", enabled: false }, ...]
window.codenomadLogger?.enableLogger("sse") // turn on SSE logs
window.codenomadLogger?.disableLogger("sse") // turn them off again
window.codenomadLogger?.enableAllLoggers() // optional helper

Enabled namespaces are persisted in localStorage under opencode:logger:namespaces, so your preference survives reloads.