Struct SubmenuButton 

pub struct SubmenuButton<Msg = Callback> { /* private fields */ }

A menu: on a MenuBar, the word along the top and what drops from it; inside another menu, a row that opens a menu beside it.

Its rows are MenuItems: actions, ticked rows, rows with a shortcut shown, rules.

use frus_widgets::{MenuItem, SubmenuButton};

#[derive(Clone)]
enum Msg { New, Open, Recent(usize) }

let file: SubmenuButton<Msg> = SubmenuButton::new("File")
    .item(MenuItem::new("New", Msg::New).shortcut("Ctrl+N"))
    .item(MenuItem::new("Open…", Msg::Open))
    .divider()
    .submenu(
        SubmenuButton::new("Open recent")
            .item(MenuItem::new("notes.txt", Msg::Recent(0)))
            .item(MenuItem::new("todo.md", Msg::Recent(1))),
    );

Implementations

impl<Msg> SubmenuButton<Msg>

pub fn new(label: impl Into<String>) -> Self

A menu called label, with nothing in it yet.

pub fn item(self, item: MenuItem<Msg>) -> Self

Adds a row.

pub fn submenu(self, submenu: SubmenuButton<Msg>) -> Self

Adds a row that opens submenu beside this menu.

pub fn divider(self) -> Self

Adds the rule between two groups.

pub fn enabled(self, enabled: bool) -> Self

Whether the menu can be opened. A disabled one is still shown, greyed.