m3e_menus library

Classes

M3EMenu: A Material 3 Expressive menu (Compose DropdownMenu + DropdownMenuPopup).
M3EMenuColors: Resolved colors for one M3EMenuColorStyle.
M3EMenuContent: Renders a tree of M3EMenuNodes inside one elevated menu surface.
M3EMenuDivider: Horizontal rule between menu sections inside one elevated surface.
M3EMenuDividerWidget: Horizontal divider between menu items inside one elevated surface.
M3EMenuEntry: Standard action row (Compose DropdownMenuItem).
M3EMenuGroup: Elevated surface / subgroup of items with optional section label.
M3EMenuItem: A single interactive row inside an M3EMenu popup.
M3EMenuNode: A node in an M3EMenu content tree.
M3EMenuPlacement: Computed placement for an anchored menu popup.
M3EMenuPlacer: Collision-aware menu placement (Compose popup position provider).
M3EMenuPopup<T>: Overlay surface for showM3EMenu / M3EMenu (Compose DropdownMenuPopup).
M3EMenuSelectable: Single-select row with a trailing check when selected.
M3EMenuSubmenu: Cascading submenu opened from a parent row.
M3EMenuTheme: Theme values for M3EMenu (Compose MenuDefaults expressive tokens).
M3EMenuToggleable: Toggleable row (Compose checked menu item).
M3EMenuWidget: Row whose body is an arbitrary child (host-provided content).

M3EMenuAnchorPosition: Preferred placement of a menu relative to its anchor.
M3EMenuColorStyle: Standard vs vibrant container color mapping for M3EMenu.
M3EMenuItemShape: Per-item corner shape within a menu group (Compose MenuDefaults.itemShape).

M3EMenuSpringMotion on M3ESpring: Converts M3ESpring to a motor SpringMotion for menu animations.

m3eMenuPartitionSurfaces(List<M3EMenuNode> nodes) → List<M3EMenuGroup>: Partitions top-level menu nodes into elevated surface groups.
showM3EMenu<T>({required BuildContext context, required Rect anchor, required List<M3EMenuNode> children, M3EMenuAnchorPosition position = M3EMenuAnchorPosition.bottomEnd, M3EMenuColorStyle colorStyle = M3EMenuColorStyle.standard, T? selectedValue, bool closeOnSelect = true, double? preferredWidth, FocusNode? callerFocusNode, M3EMenuTheme? themeOverride}) → Future<T?>: Shows an expressive menu popup anchored to anchor.

M3EMenuAnchorBuilder = Widget Function(BuildContext context, VoidCallback open): Builds the anchor for an M3EMenu, given a callback to open the menu.
M3EMenuOpenSubmenuCallback = void Function(Rect anchorRect, List<M3EMenuNode> children): Callback to open a cascading submenu from an item rect.
M3EMenuSelectCallback = void Function(Object? value): Callback when a menu node produces a selection result.