fractal::utils

Struct BoundObjectWeakRef

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pub struct BoundObjectWeakRef<T: ObjectType> {
    weak_obj: WeakRef<T>,
    signal_handler_ids: RefCell<Vec<SignalHandlerId>>,
}
Expand description

Wrapper to manage a bound object.

This keeps a weak reference to the object.

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§weak_obj: WeakRef<T>§signal_handler_ids: RefCell<Vec<SignalHandlerId>>

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impl<T: ObjectType> BoundObjectWeakRef<T>

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pub fn new() -> Self

Creates a new empty BoundObjectWeakRef.

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pub fn set(&self, obj: &T, signal_handler_ids: Vec<SignalHandlerId>)

Set the given object and signal handlers IDs.

Calls disconnect_signals first to remove the previous weak reference and disconnect the previous signal handlers.

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pub fn obj(&self) -> Option<T>

Get a strong reference to the object.

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pub fn disconnect_signals(&self)

Disconnect the signal handlers and drop the weak reference.

Trait Implementations§

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impl<T: Debug + ObjectType> Debug for BoundObjectWeakRef<T>

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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<T: ObjectType> Default for BoundObjectWeakRef<T>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T: ObjectType> Drop for BoundObjectWeakRef<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<T: IsA<Object> + HasParamSpec> Property for BoundObjectWeakRef<T>

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impl<T: IsA<Object>> PropertyGet for BoundObjectWeakRef<T>

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type Value = Option<T>

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fn get<R, F: Fn(&Self::Value) -> R>(&self, f: F) -> R

Auto Trait Implementations§

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impl<T> !Freeze for BoundObjectWeakRef<T>

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impl<T> !RefUnwindSafe for BoundObjectWeakRef<T>

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impl<T> Send for BoundObjectWeakRef<T>
where T: Send + Sync,

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impl<T> !Sync for BoundObjectWeakRef<T>

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impl<T> Unpin for BoundObjectWeakRef<T>

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impl<T> UnwindSafe for BoundObjectWeakRef<T>
where T: RefUnwindSafe,

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<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, W> HasTypeWitness<W> for T
where W: MakeTypeWitness<Arg = T>, T: ?Sized,

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const WITNESS: W = W::MAKE

A constant of the type witness
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impl<T> Identity for T
where T: ?Sized,

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const TYPE_EQ: TypeEq<T, <T as Identity>::Type> = TypeEq::NEW

Proof that Self is the same type as Self::Type, provides methods for casting between Self and Self::Type.
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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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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> NoneValue for T
where T: Default,

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type NoneType = T

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fn null_value() -> T

The none-equivalent value.
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

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

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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> Any for T
where T: Any,

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<A, B, T> HttpServerConnExec<A, B> for T
where B: Body,

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impl<T> MaybeSendSync for T

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impl<T> SendOutsideWasm for T
where T: Send,