enum MenuItemKind

Control plane

enum MenuItemKind : u32

What one row is.

Four kinds and not a general widget vocabulary. A context menu that can express checkboxes, text fields and icons stops being a context menu — it becomes a small application with a layout problem, and the desktop already has somewhere to put those. submenu is the one addition, and it is a branch, not a widget: the rows under it are the same three kinds again.

idl/lava.npidl:724

Cases

checkbox = 1

Does something and closes the menu, and shows checked beside itself. A state, not a preference: the compositor fills it from the window it is describing at the moment the menu opens.

idl/lava.npidl

command = 0

Does something and closes the menu.

idl/lava.npidl

separator = 2

A rule. title, id, checked and shortcut are ignored.

idl/lava.npidl

submenu = 3

Opens the rows whose parent is this id, beside this row.

Not a choice. Hovering or clicking it does not close the menu and does not produce a MenuReply — the branch is drawn by the menu client and placed by the compositor (ShowSubmenu). id is still never 0, because that is how a child names its parent.

idl/lava.npidl