feat(web): implement side-by-side Monaco interactive code diff viewer - #1247
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ayomideadeniran merged 1 commit intoSep 3, 2026
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Add a complete diff comparison component that lets students compare their working contract code against model solutions and compiler fixes. Features: - Monaco DiffEditor with inline and side-by-side split view toggles - Character-level diff highlighting for Rust syntax and Soroban macros - 1-click "Apply Diff Chunk" controls merging selected solution blocks into the student buffer - Diff computation offloaded to a Web Worker to prevent UI thread stutter - Dark, light, and OLED theme support via custom Monaco theme - Hunk-level apply with context preservation and stale-hunk detection - Full keyboard accessibility with ARIA labels Closes StellarDevHub#1145 🤖 Generated with Codebuff Co-Authored-By: Codebuff <noreply@codebuff.com>
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| message: err instanceof Error ? err.message : 'Diff computation failed.', | ||
| }); | ||
| // Handle both InteractiveDiffViewer (type: 'diff') and DiffViewer (id, original, modified) | ||
| self.onmessage = (event: MessageEvent<any>) => { |
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Summary
Implement a complete Monaco-based diff comparison component that lets students compare their working contract code against model solutions and compiler fixes.
Features
Files Added
frontend/src/lib/diff/diffUtils.ts— Pure diff utilities (computeDiffHunks, applyHunk, applyHunks) using diff-match-patchfrontend/src/lib/diff/diff.worker.ts— Web Worker for off-thread diff computationfrontend/src/components/diff/DiffViewer.tsx— Main React component with Monaco DiffEditor, hunk list, and apply controlsfrontend/src/components/diff/index.ts— Barrel exportAcceptance Criteria
Closes #1145
🤖 Generated with Codebuff
Co-Authored-By: Codebuff noreply@codebuff.com