pub struct MenuItem<T> { /* private fields */ }
Expand description
An item in a menu.
See the module level documentation for more on how to use menus.
Implementations§
source§impl<T: Data> MenuItem<T>
impl<T: Data> MenuItem<T>
sourcepub fn new(title: impl Into<LabelText<T>>) -> MenuItem<T>
pub fn new(title: impl Into<LabelText<T>>) -> MenuItem<T>
Create a new menu item with a given name.
Examples found in repository?
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fn make_menu(_: Option<WindowId>, state: &State, _: &Env) -> Menu<State> {
let mut base = Menu::empty();
#[cfg(target_os = "macos")]
{
base = druid::platform_menus::mac::menu_bar();
}
#[cfg(any(
target_os = "windows",
target_os = "freebsd",
target_os = "linux",
target_os = "openbsd"
))]
{
base = base.entry(druid::platform_menus::win::file::default());
}
if state.menu_count != 0 {
let mut custom = Menu::new(LocalizedString::new("Custom"));
for i in 1..=state.menu_count {
custom = custom.entry(
MenuItem::new(
LocalizedString::new("hello-counter")
.with_arg("count", move |_: &State, _| i.into()),
)
.on_activate(move |_ctx, data, _env| data.selected = i)
.enabled_if(move |_data, _env| i % 3 != 0)
.selected_if(move |data, _env| i == data.selected),
);
}
base = base.entry(custom);
}
base.rebuild_on(|old_data, data, _env| old_data.menu_count != data.menu_count)
}
fn make_context_menu() -> Menu<State> {
Menu::empty()
.entry(
MenuItem::new(LocalizedString::new("Increment"))
.on_activate(|_ctx, data: &mut State, _env| data.menu_count += 1),
)
.entry(
MenuItem::new(LocalizedString::new("Decrement")).on_activate(
|_ctx, data: &mut State, _env| data.menu_count = data.menu_count.saturating_sub(1),
),
)
.entry(
MenuItem::new(LocalizedString::new("Glow when hot"))
.on_activate(|_ctx, data: &mut State, _env| data.glow_hot = !data.glow_hot),
)
}
sourcepub fn on_activate(
self,
on_activate: impl FnMut(&mut MenuEventCtx<'_>, &mut T, &Env) + 'static
) -> Self
pub fn on_activate( self, on_activate: impl FnMut(&mut MenuEventCtx<'_>, &mut T, &Env) + 'static ) -> Self
Provide a callback that will be invoked when this menu item is chosen.
Examples found in repository?
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fn make_menu(_: Option<WindowId>, state: &State, _: &Env) -> Menu<State> {
let mut base = Menu::empty();
#[cfg(target_os = "macos")]
{
base = druid::platform_menus::mac::menu_bar();
}
#[cfg(any(
target_os = "windows",
target_os = "freebsd",
target_os = "linux",
target_os = "openbsd"
))]
{
base = base.entry(druid::platform_menus::win::file::default());
}
if state.menu_count != 0 {
let mut custom = Menu::new(LocalizedString::new("Custom"));
for i in 1..=state.menu_count {
custom = custom.entry(
MenuItem::new(
LocalizedString::new("hello-counter")
.with_arg("count", move |_: &State, _| i.into()),
)
.on_activate(move |_ctx, data, _env| data.selected = i)
.enabled_if(move |_data, _env| i % 3 != 0)
.selected_if(move |data, _env| i == data.selected),
);
}
base = base.entry(custom);
}
base.rebuild_on(|old_data, data, _env| old_data.menu_count != data.menu_count)
}
fn make_context_menu() -> Menu<State> {
Menu::empty()
.entry(
MenuItem::new(LocalizedString::new("Increment"))
.on_activate(|_ctx, data: &mut State, _env| data.menu_count += 1),
)
.entry(
MenuItem::new(LocalizedString::new("Decrement")).on_activate(
|_ctx, data: &mut State, _env| data.menu_count = data.menu_count.saturating_sub(1),
),
)
.entry(
MenuItem::new(LocalizedString::new("Glow when hot"))
.on_activate(|_ctx, data: &mut State, _env| data.glow_hot = !data.glow_hot),
)
}
sourcepub fn command(self, cmd: impl Into<Command>) -> Self
pub fn command(self, cmd: impl Into<Command>) -> Self
Provide a Command
that will be sent when this menu item is chosen.
This is equivalent to self.on_activate(move |ctx, _data, _env| ctx.submit_command(cmd))
.
If the command’s target is Target::Auto
, it will be sent to the menu’s window if the
menu is associated with a window, or to Target::Global
if the menu is not associated
with a window.
sourcepub fn hotkey(self, mods: impl Into<Option<RawMods>>, key: impl IntoKey) -> Self
pub fn hotkey(self, mods: impl Into<Option<RawMods>>, key: impl IntoKey) -> Self
Provide a hotkey for activating this menu item.
This is equivalent to
self.dynamic_hotkey(move |_, _| Some(HotKey::new(mods, key))
sourcepub fn dynamic_hotkey(
self,
hotkey: impl FnMut(&T, &Env) -> Option<HotKey> + 'static
) -> Self
pub fn dynamic_hotkey( self, hotkey: impl FnMut(&T, &Env) -> Option<HotKey> + 'static ) -> Self
Provide a dynamic hotkey for activating this menu item.
The hotkey can change depending on the data.
sourcepub fn enabled_if(self, enabled: impl FnMut(&T, &Env) -> bool + 'static) -> Self
pub fn enabled_if(self, enabled: impl FnMut(&T, &Env) -> bool + 'static) -> Self
Provide a callback for determining whether this menu item should be enabled.
Whenever the callback returns true
, the item will be enabled.
Examples found in repository?
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fn make_menu(_: Option<WindowId>, state: &State, _: &Env) -> Menu<State> {
let mut base = Menu::empty();
#[cfg(target_os = "macos")]
{
base = druid::platform_menus::mac::menu_bar();
}
#[cfg(any(
target_os = "windows",
target_os = "freebsd",
target_os = "linux",
target_os = "openbsd"
))]
{
base = base.entry(druid::platform_menus::win::file::default());
}
if state.menu_count != 0 {
let mut custom = Menu::new(LocalizedString::new("Custom"));
for i in 1..=state.menu_count {
custom = custom.entry(
MenuItem::new(
LocalizedString::new("hello-counter")
.with_arg("count", move |_: &State, _| i.into()),
)
.on_activate(move |_ctx, data, _env| data.selected = i)
.enabled_if(move |_data, _env| i % 3 != 0)
.selected_if(move |data, _env| i == data.selected),
);
}
base = base.entry(custom);
}
base.rebuild_on(|old_data, data, _env| old_data.menu_count != data.menu_count)
}
sourcepub fn enabled(self, enabled: bool) -> Self
pub fn enabled(self, enabled: bool) -> Self
Enable or disable this menu item.
Examples found in repository?
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fn make_menu<T: Data>(_window_id: Option<WindowId>, _app_state: &AppState, _env: &Env) -> Menu<T> {
let mut base = Menu::empty();
#[cfg(target_os = "macos")]
{
base = base.entry(druid::platform_menus::mac::application::default())
}
#[cfg(any(
target_os = "windows",
target_os = "freebsd",
target_os = "linux",
target_os = "openbsd"
))]
{
base = base.entry(druid::platform_menus::win::file::default());
}
base.entry(
Menu::new(LocalizedString::new("common-menu-edit-menu"))
.entry(druid::platform_menus::common::undo())
.entry(druid::platform_menus::common::redo())
.separator()
.entry(druid::platform_menus::common::cut().enabled(false))
.entry(druid::platform_menus::common::copy())
.entry(druid::platform_menus::common::paste()),
)
}
sourcepub fn selected_if(
self,
selected: impl FnMut(&T, &Env) -> bool + 'static
) -> Self
pub fn selected_if( self, selected: impl FnMut(&T, &Env) -> bool + 'static ) -> Self
Provide a callback for determining whether this menu item should be selected.
Whenever the callback returns true
, the item will be selected.
Examples found in repository?
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fn make_menu(_: Option<WindowId>, state: &State, _: &Env) -> Menu<State> {
let mut base = Menu::empty();
#[cfg(target_os = "macos")]
{
base = druid::platform_menus::mac::menu_bar();
}
#[cfg(any(
target_os = "windows",
target_os = "freebsd",
target_os = "linux",
target_os = "openbsd"
))]
{
base = base.entry(druid::platform_menus::win::file::default());
}
if state.menu_count != 0 {
let mut custom = Menu::new(LocalizedString::new("Custom"));
for i in 1..=state.menu_count {
custom = custom.entry(
MenuItem::new(
LocalizedString::new("hello-counter")
.with_arg("count", move |_: &State, _| i.into()),
)
.on_activate(move |_ctx, data, _env| data.selected = i)
.enabled_if(move |_data, _env| i % 3 != 0)
.selected_if(move |data, _env| i == data.selected),
);
}
base = base.entry(custom);
}
base.rebuild_on(|old_data, data, _env| old_data.menu_count != data.menu_count)
}