- The workbook's active sheet is an atomic set in place (Workbook::active_sheet /
set_active_sheet), so a window swap or sheet switch never clones the
Arc<Workbook> or marks it dirty. Selections already live in DocState and the
window views. Save records the sheet of the most recently active window.
- A dialog taken out of its window while it runs goes back to that window when
a command run from it switched windows (dialogs::show, ui.dialog.confirm).
- view.arrangeAll {arrange?: tiled|horizontal|vertical|cascade, activeWorkbook?}
returns the visible windows, active first; the desktop moves and sizes the
native windows over the main window's monitor. New Window and Arrange All
buttons on the View ribbon; Arrange Windows dialog.
- Docs: ui-parity, hardware-parity, gaps #20, target-app-parity, ROADMAP.
Session keeps a window list (stable ids, per-window selection, active sheet
and per-sheet selections swapped into the workbook without dirtying it)
in place of the index-based hidden list and the copying New Window.
Titles read Name:1 / Name:2 for a workbook with several windows.
File > Close closes one window of several; window.close, window.list and
window ids for window.activate, view.switchWindows, view.hideWindow and
view.unhideWindow. Control channel and MCP tools take window/doc ids;
scroll positions and cell drafts belong to their window.
A cell being typed when File > New ran (macOS menu, control channel) stayed
open over the new workbook, and Enter wrote it there; the first workbook
stayed clean and nothing in the UI reached it.
- Every file.* and window command (window.activate, view.newWindow,
view.hideWindow, view.unhideWindow, view.switchWindows with a doc) first
commits the cell and text-box drafts as Enter would, or drops a draft its
workbook refuses, still reporting why. Finder, argv and dropped opens go
through file.open and get the same.
- The cell editor records its workbook's uid; the grid draws a draft only
over that workbook, and a commit always goes into it.
- view.switchWindows takes a `doc` uid to bring that workbook forward and
lists index, doc, title, dirty, active and hidden. Menu-style calls with
no doc open the View tab's new Switch Windows dropdown.
- macOS: the Window menu lists the open workbooks (unsaved bullet, active
check), and Quit closes the window so unsaved workbooks are asked about.
crates/ui-egui/src/grid.rs: kept both GridState fields (context_menu_frame, fill_menu); previous_popups tuple has four elements inside the touch_pan branch; release match has Drag::Rows|Cols, then the two Drag::Fill arms
docs/ui-parity.md: kept HEAD header line, both change rows
crates/xlsx/src/styles.rs: family/charset block ported into the dxf.is_none() branch of font_xml (PR #1225 made it take Option<&DxfStated>)
docs/file-format-parity.md: header Change line keeps both sides' clauses
crates/ui-egui/src/grid.rs: kept object_menu (2084) and error_check_tag (2095), both fns and both calls.
crates/ui-egui/src/i18n/de.rs, pt.rs: union of the entries.
docs/ui-parity.md: one status line naming both changes, both history rows.
crates/engine/src/tests.rs: kept both sides' new tests (journal tests from #1230, HTML export tests from the PR).
docs/file-format-parity.md: header Last updated 2026-10-21 with both change clauses; both revision-history rows, newest first.
crates/engine/src/lib.rs: kept both the journal caps (#1230) and the undo byte budget; separate constants and call sites.
crates/engine/src/cmd/edit.rs: undo pushes through push_history; the redo entry keeps the undone edit's selection (#1855 behaviour).
crates/engine/src/tests.rs: kept both tests (redo_selects_the_redone_cell and the two history-bound tests).
aiongg