sync: port upstream native diff highlighter and macOS fullscreen titlebar (#4029, #4019)

[aaditagrawal]

What changed

• Ports native review-diff highlighter grammar-state isolation (#4029).
• Ports macOS fullscreen titlebar spacing IPC/state plumbing (#4019).
• Preserves fork: WSL desktop handling and log-dir IPC methods merged with fullscreen APIs.

Validation

• vp check / vp run typecheck — pass on stack tip
• CI: pending

Stack: 3 of 4; depends on #156.

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 8f524ec6-637f-4ba6-af83-4b91c52f0f86

📥 Commits

Reviewing files that changed from the base of the PR and between 0b2d906 and b7b9072.

📒 Files selected for processing (11)

• apps/desktop/src/ipc/DesktopIpcHandlers.ts
• apps/desktop/src/ipc/channels.ts
• apps/desktop/src/ipc/methods/window.test.ts
• apps/desktop/src/ipc/methods/window.ts
• apps/desktop/src/preload.ts
• apps/desktop/src/window/DesktopWindow.test.ts
• apps/desktop/src/window/DesktopWindow.ts
• apps/mobile/src/features/diffs/nativeReviewDiffHighlighter.test.ts
• apps/mobile/src/features/diffs/nativeReviewDiffHighlighter.ts
• apps/web/src/components/AppSidebarLayout.tsx
• packages/contracts/src/ipc.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch sync/20260716-mobile-desktop

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[aaditagrawal]

• sync: port duplicate workspace roots guard and record July 16 upstream ancestry (#3829) #158
• sync: port upstream native diff highlighter and macOS fullscreen titlebar (#4029, #4019) #157 👈 (View in Graphite)
• sync: port upstream web status animations, onboarding, markdown lists (#3978, #4001, #4020) #156
• sync: port upstream docs fixes and legal docs (#3990–#3992, #3972, #4000) #155
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[aaditagrawal]

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Review finished.

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[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 34b00270a7

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• Comment "@codex review".

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[chatgpt-codex-connector]

Preserve new-side context through replacements

When a hunk is context -> delete -> add and the context line opens multi-line syntax, the first addition is consecutive with that context in the new file, but this check compares it only with the immediately preceding deletion and flushes. The addition is then tokenized as a fresh segment, so visible review diffs can mis-highlight added lines inside multiline strings/comments until the token cache is reset; the highlighter needs to track old- and new-side grammar context separately or seed addition segments from the prior context.

Useful? React with 👍 / 👎.

[aaditagrawal]

Merge activity

• Jul 16, 10:01 AM UTC: A user started a stack merge that includes this pull request via Graphite.
• Jul 16, 10:05 AM UTC: Graphite rebased this pull request as part of a merge.
• Jul 16, 10:05 AM UTC: @aaditagrawal merged this pull request with Graphite.