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MenuBar

Struct MenuBar 

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pub struct MenuBar {
    pub menus: Vec<BarMenu>,
}
Expand description

The application menu: what a frame declares, in order (Core::declare_menu_bar).

Declared and not commanded, like the window title: a frame that declares none leaves the last one in force, and a frame that declares an empty bar takes it away. Where the platform owns a menu bar the driver hands this over (macOS: NSApp.mainMenu); everywhere else crate::widgets::menu_bar draws it, and each of its titles opens the ordinary Menu machinery — so the dropdown, its keyboard, its dismissal and its access tree are the ones already built for the context menu.

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§menus: Vec<BarMenu>

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impl MenuBar

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pub fn new(menus: Vec<BarMenu>) -> Self

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pub fn from_value(v: &Value) -> Result<Self, String>

A bar from plain data: a list of { label, items, enabled? }, whose items are the rows openMenu takes. A menu with no items is a shape error and not an empty menu: the two read the same on screen and only one of them was meant.

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pub fn stray_keys(v: &Value) -> Vec<String>

MenuItem::stray_keys over every menu’s rows.

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pub fn is_empty(&self) -> bool

Nothing declared: the bar the platform is asked to take away.

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pub fn item(&self, menu: usize, item: usize) -> Option<&MenuItem>

The item at (menu, item), if it is there.

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pub fn item_at(&self, menu: usize, path: &[usize]) -> Option<&MenuItem>

The item at path inside menu menu, through its submenus (MenuItem::at_path).

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impl Clone for MenuBar

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for MenuBar

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for MenuBar

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl PartialEq for MenuBar

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for MenuBar

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.