Specular.Ref

data Ref a

Constructors

• Ref (Dynamic a) (Callback (a -> a))

Instances

• Invariant Ref

newRef :: forall a m. MonadEffect m => a -> m (Ref a)

newRefWithEvent :: forall a m. MonadFRP m => a -> Event (a -> a) -> m (Ref a)

refValue :: forall a. Ref a -> Dynamic a

refUpdate :: forall a. Ref a -> Callback (a -> a)

refUpdateConst :: forall a. Ref a -> Callback a

focusRef :: forall a s. Dynamic (Lens s a) -> Ref s -> Ref a

pureFocusRef :: forall a s. Lens s a -> Ref s -> Ref a

previewRef :: forall a s. Prism s a -> Ref s -> Ref (Maybe a)

updateRef :: forall a. Ref a -> a -> Effect Unit

readRef :: forall a m. MonadEffect m => Ref a -> m a

constRef :: forall a. a -> Ref a

wrapViewWidget :: forall a m. MonadWidget m => (WeakDynamic a -> m (Event a)) -> Ref a -> m Unit

type Lens s a = { get :: s -> a, set :: s -> a -> s }

type Prism s a = { preview :: s -> Maybe a, review :: a -> s }