T13a Lists: ListItem, List, SelectableList, VirtualList, InfiniteList, GroupedList, SortableList, SwipeableListItem (review pending: codex 401)

tasks/ch11-20.md

@@ -89,23 +89,29 @@
 - [x] Rating display → `data_display::Stars`, read only with parts of a star; `forms::Rating` sets a score
 - [x] Comparison → `data_display::Comparison`
 
-## T13 Lists & Trees — `src/lists`
+## T13a Lists & Trees · Lists — `src/lists`
+
+- [x] List / ListItem → `lists::List`, `ListItem`
+- [x] VirtualList → `lists::VirtualList`, on gpui's `list()`; rows as tall as they need
+- [x] InfiniteList → `lists::InfiniteList`
+- [x] SortableList → `lists::SortableList`; drags through `motion::Reorder`, Alt with arrows moves
+- [x] SelectableList — single, multi, shift range → `lists::SelectableList`
+- [x] GroupedList → `lists::GroupedList`, headers from `layout::StickyHeader`
+- [x] SectionList → `lists::GroupedList`
+- [x] ReorderableList → `lists::SortableList`
+- [x] SwipeableListItem → `lists::SwipeableListItem`, `SwipeAction`; proved with real trackpad phases (`Step::Swipe`)
+
+## T13b Lists & Trees · Trees
 
-- [ ] List / ListItem
-- [ ] VirtualList — native `list()` / `uniform_list()`, themed rows
-- [ ] InfiniteList
-- [ ] SortableList
-- [ ] SelectableList — single, multi, shift range
-- [ ] GroupedList — sticky group headers
-- [ ] SectionList → `lists::GroupedList`
-- [ ] ReorderableList → `lists::SortableList`
-- [ ] SwipeableListItem — prove: horizontal trackpad scroll
 - [ ] Tree / TreeView — also T06b TreeSelect
 - [ ] VirtualTree → `lists::Tree`
-- [ ] FileTree
 - [ ] CheckboxTree
 - [ ] Outline
 - [ ] NestedList → `lists::Outline`
+
+## T13c Lists & Trees · Files
+
+- [ ] FileTree
 - [ ] DirectoryListing
 - [ ] Menu List → `menus::Menu`
 - [ ] Transfer List → `forms::TransferList`