GI.Gtk.Declarative.Attributes.Internal.Conversions

Documentation

class ToGtkCallback gtkCallback purity where

Internal class for converting EventHandlers to gi-gtk callbacks.

Methods

toGtkCallback :: EventHandler gtkCallback widget purity event -> widget -> (event -> IO ()) -> gtkCallback

Converts an EventHandler, i.e. the internal encoding of a pure or an impure callback, back to a GTK+ callback. Impure callbacks will also receive a widget as the last argument.

Instances

ToGtkCallback (IO Bool) Pure

Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions

Methods

toGtkCallback :: EventHandler (IO Bool) widget Pure event -> widget -> (event -> IO ()) -> IO Bool

ToGtkCallback (IO Bool) Impure

Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions

Methods

toGtkCallback :: EventHandler (IO Bool) widget Impure event -> widget -> (event -> IO ()) -> IO Bool

ToGtkCallback (IO ()) Pure

Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions

Methods

toGtkCallback :: EventHandler (IO ()) widget Pure event -> widget -> (event -> IO ()) -> IO ()

ToGtkCallback (IO ()) Impure

Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions

Methods

toGtkCallback :: EventHandler (IO ()) widget Impure event -> widget -> (event -> IO ()) -> IO ()

ToGtkCallback y purity => ToGtkCallback (x -> y) purity

Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions

Methods

toGtkCallback :: EventHandler (x -> y) widget purity event -> widget -> (event -> IO ()) -> x -> y