umputun / revdiff / 24636744033

Build # 24636744033

Build Type

Pull #125

github

Committed by umputun

Commit Message

fix(ui): keep cursor visible when paging on annotated lines

Extend the page/half-page helpers to treat an annotation-row flip
(diffCursor unchanged but cursorOnAnnotation toggled) as real progress,
and scroll the viewport by the cursor's actual visual delta instead of
the requested row count. Without this, PgDown from a line with an
annotation exited the helper loop immediately on the cursorOnAnnotation
flip, then scrolled the viewport by a full page anyway, pushing the
cursor above the viewport.

Rename the helper parameter from n to rows to match the godoc.

Extend TestModel_PgDownPgUpPreservesRelativeCursorPosition with a
mid-screen subcase (so the relative-row assertion is not degenerate at
screen row 0) and split into subtests with a fresh model per case.
Add TestModel_PgDownKeepsCursorVisibleOnAnnotatedLine to lock in the
visibility invariant.

Related to #124

Pull Request Pull Request #125: fix(ui): keep cursor on same screen row when paging

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