Files
ntbang0901 02d30b1609 fix(editor): keep the caret and view when a file changes in distant places (#1329)
Document::diff only trimmed the common prefix and suffix, so two distant
edits on disk became one change spanning everything between them. The
caret and scroll position inside that span were mapped to its start,
which made the editor jump to the first edit after an agent, formatter
or git operation rewrote the file.

Diff the changed middle line by line (Myers via similar, 50 ms deadline
with a coarser fallback) and emit one change per edited region, trimmed
to its differing characters. The frontend DocSync path produces the same
per-region changes, so external reloads, local history restores and
formatting keep the caret and view in place.

Closes #1326

Co-authored-by: ntbang0901 <121003585+ntbang0901@users.noreply.github.com>
2026-11-05 09:04:48 +08:00

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