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Anchor transcript scrolling to entries and bound viewport rendering - #46721
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copyberry[bot] merged 1 commit intoSep 19, 2026
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…46721) ## Why Transcript-wide row offsets depend on content that can change during pagination, streaming, and resizing. Computing an exact scroll percentage also requires laying out offscreen history. ## What changed - Replace the transcript overlay's generic pager with `TranscriptView`, tracking entry identity and a display-row offset through history updates and stream consolidation. Clamp offsets within the entry on resize or replacement. - Render through bounded layout caches and show `100%` only when following the latest output with no unloaded history. - Keep the reading position while `Home` loads older pages, then jump to the beginning when loading completes. - Refresh animations whenever live output is visible, including while scrolled up. - Reveal selected prompts when backtracking and highlight their text without reversing gutters or padding. ## Testing Add regression coverage for reading anchors across pagination and live-output completion, resize and consolidation, prompt visibility and highlighting, navigation before the first draw, and avoiding offscreen formatting for the percentage indicator. GitOrigin-RevId: 105cb66f93c742ee537152419060a87f55896b44
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Anchor transcript scrolling to entries and bound viewport rendering
Why
Transcript-wide row offsets depend on content that can change during pagination, streaming, and resizing. Computing an exact scroll percentage also requires laying out offscreen history.
What changed
TranscriptView, tracking entry identity and a display-row offset through history updates and stream consolidation. Clamp offsets within the entry on resize or replacement.100%only when following the latest output with no unloaded history.Homeloads older pages, then jump to the beginning when loading completes.Testing
Add regression coverage for reading anchors across pagination and live-output completion, resize and consolidation, prompt visibility and highlighting, navigation before the first draw, and avoiding offscreen formatting for the percentage indicator.