GI.Gtk.Declarative.Widget

A Widget value can wrap any Patchable widget, hiding the underlying widget type, such that you can embed heterogeneous collections of widgets in containers.

Documentation

data Widget event where

A Widget value wraps a Patchable and EventSource widget, providing a constrained equivalent of a Dynamic value. It is used to support heterogeneous containers of widgets, and to support equality checks on different types of widgets when calculating patches.

Constructors

Widget :: (Typeable widget, Patchable widget, Functor widget, EventSource widget) => widget event -> Widget event

Instances

Functor Widget

Defined in GI.Gtk.Declarative.Widget

Methods

fmap :: (a -> b) -> Widget a -> Widget b

(<$) :: a -> Widget b -> Widget a

Patchable Widget

Widget is itself patchable, by delegating to the underlying widget instances.

Defined in GI.Gtk.Declarative.Widget

Methods

create :: Widget e -> IO SomeState

patch :: SomeState -> Widget e1 -> Widget e2 -> Patch

EventSource Widget

Defined in GI.Gtk.Declarative.Widget

Methods

subscribe :: Widget event -> SomeState -> (event -> IO ()) -> IO Subscription

BinChild ApplicationWindow Widget

Defined in GI.Gtk.Declarative.Bin

BinChild Dialog Widget

Defined in GI.Gtk.Declarative.Bin

BinChild ListBoxRow Widget

Defined in GI.Gtk.Declarative.Bin

BinChild MenuItem Widget

Defined in GI.Gtk.Declarative.Bin

BinChild ScrolledWindow Widget

Defined in GI.Gtk.Declarative.Bin

BinChild Window Widget

Defined in GI.Gtk.Declarative.Bin

ToChildren ListBox [] (Bin ListBoxRow Widget)

Defined in GI.Gtk.Declarative.Container.ListBox

Methods

toChildren :: (ManagedPtr ListBox -> ListBox) -> [Bin ListBoxRow Widget event] -> Children (Bin ListBoxRow Widget) event

IsContainer ListBox (Bin ListBoxRow Widget)

Defined in GI.Gtk.Declarative.Container.Patch

Methods

appendChild :: ListBox -> Bin ListBoxRow Widget event -> Widget0 -> IO ()

replaceChild :: ListBox -> Bin ListBoxRow Widget event -> Int32 -> Widget0 -> Widget0 -> IO ()

(Patchable (parent child), Functor (parent child), EventSource (parent child)) => FromWidget (parent child) Widget

Defined in GI.Gtk.Declarative.Widget

Methods

fromWidget :: (Typeable (parent child), Typeable event) => parent child event -> Widget event

(BinChild widget child, Patchable child, EventSource child) => FromWidget (Bin widget child) Widget

Defined in GI.Gtk.Declarative.Bin

Methods

fromWidget :: (Typeable (Bin widget child), Typeable event) => Bin widget child event -> Widget event

(Typeable widget, Typeable children, Patchable (Container widget children), EventSource (Container widget children), Functor (Container widget children)) => FromWidget (Container widget children) Widget

Defined in GI.Gtk.Declarative.Container

Methods

fromWidget :: (Typeable (Container widget children), Typeable event) => Container widget children event -> Widget event

Widget to Markup conversion

class FromWidget widget target where

Convert a widget to a target type. This is deliberately unconstrained in it's types, and is used by smart constructors to implement return type polymorphism, so that a smart contructor can return either a Widget, or some specifically typed widget, depending on the context in which it's used.

Minimal complete definition

fromWidget

Methods

fromWidget :: (Typeable widget, Typeable event) => widget event -> target event

Instances

FromWidget widget Widget => FromWidget widget BoxChild

Any widget that can be converted to a Widget can be wrapped as a BoxChild with the default properties.

Defined in GI.Gtk.Declarative.Widget.Conversions

Methods

fromWidget :: (Typeable widget, Typeable event) => widget event -> BoxChild event

(Patchable (parent child), Functor (parent child), EventSource (parent child)) => FromWidget (parent child) Widget

Defined in GI.Gtk.Declarative.Widget

Methods

fromWidget :: (Typeable (parent child), Typeable event) => parent child event -> Widget event

(BinChild widget child, Patchable child, EventSource child) => FromWidget (Bin widget child) Widget

Defined in GI.Gtk.Declarative.Bin

Methods

fromWidget :: (Typeable (Bin widget child), Typeable event) => Bin widget child event -> Widget event

(Typeable widget, Typeable children, Patchable (Container widget children), EventSource (Container widget children), Functor (Container widget children)) => FromWidget (Container widget children) Widget

Defined in GI.Gtk.Declarative.Container

Methods

fromWidget :: (Typeable (Container widget children), Typeable event) => Container widget children event -> Widget event

(a ~ b, c ~ d) => FromWidget (Bin a c) (Bin b d)

Defined in GI.Gtk.Declarative.Bin

Methods

fromWidget :: (Typeable (Bin a c), Typeable event) => Bin a c event -> Bin b d event

a ~ b => FromWidget (Container a children) (Container b children)

Defined in GI.Gtk.Declarative.Container

Methods

fromWidget :: (Typeable (Container a children), Typeable event) => Container a children event -> Container b children event