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fix(android): keep inverted chat still during text selection

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React Native decomposes Android list inversion into a 180-degree rotation with positive scaleY, so the existing visibility-scroll guard never recognized the inverted viewport. Inspect the composed matrix and reproduce the actual list transform through the native view manager in regression tests.
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Mohamed Boudra
2026-10-16 07:29:01 +02:00
parent 4962a9a591
commit 89d42e4419
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docs/native-text-selection.md
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Keep assistant prose in one native text view so selection crosses paragraphs, headings and lists. The shared [Markdown renderer](markdown-renderer.md) owns that view.
## Android inverted chat
Keep selection visibility handling in `modules/paseo-scroll`. Android's visibility
rectangles ignore list inversion. React Native decomposes Android's `scale: -1`
into rotation with positive `scaleY`, so test the composed matrix when deciding
whether those requests should move the viewport. Native tests must apply the
list's transform through React Native's view manager; assigning `scaleY` directly
misses that decomposition.
## Diagrams in lists and quotes
Selection stops at a Mermaid diagram. Native extracts Mermaid fences into separate views because the library exposes no native block renderer override. A diagram inside a list or quote therefore appears outside that container, and its following prose starts a separate Markdown fragment.