feat(selection): homegrown region overlay for area capture - #19
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Introduces a per-display transparent BrowserWindow that drives region
selection ourselves, then hands the rect to `screencapture -R`. Replaces
the OS `screencapture -i` path for "Capture Area" behind a new
`useCustomSelectionOverlay` pref (default on, kept as a safety valve).
Unblocks "Capture Previous Area" (PR2) and v0.4 region recording, both
of which need to know the chosen rectangle (which `-i` does not expose).
- New `selection` IPC namespace + SnaporaApi bridge
- `src/main/selection/{overlay,geometry}.ts` — windows + pure math
- `src/renderer/{selection.html,selection.tsx,components/Selection.tsx}`
- `screencapture -R` arg path with region passthrough
- Geometry unit tests (17 cases)
- ADR 0003 records the decision
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
aryasadeghy
enabled auto-merge (squash)
May 9, 2026 23:05
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Introduces a per-display transparent BrowserWindow that drives region selection ourselves, then hands the rect to
screencapture -R. Replaces the OSscreencapture -ipath for "Capture Area" behind a newuseCustomSelectionOverlaypref (default on, kept as a safety valve).Unblocks "Capture Previous Area" (PR2) and v0.4 region recording, both of which need to know the chosen rectangle (which
-idoes not expose).selectionIPC namespace + SnaporaApi bridgesrc/main/selection/{overlay,geometry}.ts— windows + pure mathsrc/renderer/{selection.html,selection.tsx,components/Selection.tsx}screencapture -Rarg path with region passthroughSummary
Type
Screenshots / recording
Test plan
npm run lintnpm run typechecknpm testClean-room confirmation
Linked issues
Closes #