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MenuEvent

Struct MenuEvent 

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pub struct MenuEvent {
    pub source: Entity,
    pub action: MenuAction,
}
Expand description

Event used to control the state of the open menu. This bubbles upwards from the menu items and the menu container, through the portal relation, and to the menu owner entity.

Focus navigation: the menu may be part of a composite of multiple menus such as a menu bar. This means that depending on direction, focus movement may move to the next menu item, or the next menu. This also means that different events will often be handled at different levels of the hierarchy - some being handled by the popup, and some by the popup’s owner.

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§source: Entity

The MenuItem or MenuPopup that triggered this event.

§action: MenuAction

The desired action in response to this event.

Trait Implementations§

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impl Clone for MenuEvent

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fn clone(&self) -> MenuEvent

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 EntityEvent for MenuEvent
where Self: Send + Sync + 'static,

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fn event_target(&self) -> Entity

The Entity “target” of this EntityEvent. When triggered, this will run observers that watch for this specific entity.
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impl Event for MenuEvent
where Self: Send + Sync + 'static,

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type Trigger<'a> = PropagateEntityTrigger<true, MenuEvent, &'static ChildOf>

Defines which observers will run, what data will be passed to them, and the order they will be run in. See Trigger for more info.
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impl SetEntityEventTarget for MenuEvent
where Self: Send + Sync + 'static,

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fn set_event_target(&mut self, entity: Entity)

Sets the Entity “target” of this EntityEvent. When triggered, this will run observers that watch for this specific entity. Read more

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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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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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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> Downcast for T
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fn from(t: T) -> T

Returns the argument unchanged.

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const WITNESS: W = W::MAKE

A constant of the type witness
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const TYPE_EQ: TypeEq<T, <T as Identity>::Type> = TypeEq::NEW

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type Type = T

The same type as Self, used to emulate type equality bounds (T == U) with associated type equality constraints (T: Identity<Type = U>).
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Calls U::from(self).

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

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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Performs the conversion.
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