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refactor: name configurable viewport scroll steps accurately

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Valdemar Lorenzen
2026-10-16 10:31:36 +02:00
parent 284ddd3713
commit d1048df345
12 changed files with 80 additions and 54 deletions
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docs/architecture.md
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@@ -84,7 +84,7 @@ Resolution exposes its projected comparison through the same active DiffState an
`Editor::scroll_distance()` supplies the session-wide optional edge margin. The TUI applies it to document/diff visual rows and unwrapped text columns, and retains independent picker offsets across navigation frames. Picker windows exclude their fixed chrome and align whole multi-row entries. File projections carry a monotonic viewport revision, so catalog/filter/expansion changes invalidate picker identity without hashing the entire catalog on every redraw. Metadata-only status changes do not move the viewport. Explicit LSP/wrap-toggle anchors and detached wheel views retain precedence.
Keyboard viewport actions queue per-view row and half-page counts without moving carets. `Editor::take_viewport_scroll(height)` resolves half-page counts using the session-wide `scroll_half_page_lines` preference, or half the focused viewport when unset, and saturates multiplication before the frontend clamps movement to content bounds. Ordinary, diff, and conflict-history rendering share this resolution.
Keyboard viewport actions queue per-view row and configured-step counts without moving carets. `Editor::take_viewport_scroll(height)` resolves step counts using the session-wide `scroll_step_lines` preference, or half the focused viewport when unset, and saturates multiplication before the frontend clamps movement to content bounds. Ordinary, diff, and conflict-history rendering share this resolution.
Mouse wheel input uses the last rendered document/panel rectangles for hit-testing. Document offsets and explorer scroll state remain frontend-owned; three-row wheel steps never become document cursor motions. Manual document views persist until logical caret-reveal, caret/selection, mode, revision, or buffer changes; offscreen primary and browsing-selection cursors are not placed. Hover wheel input reuses the existing editor-owned popup scrolling.