Safe Haskell	Safe
Language	Haskell2010

GI.Gtk.Declarative.Attributes.Internal.Conversions

Synopsis

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

Documentation

class ToGtkCallback gtkCallback purity where Source #

Internal class for converting EventHandlers to gi-gtk callbacks.

Methods

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

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 Source #
Instance details Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions Methods toGtkCallback :: EventHandler (IO Bool) widget Pure event -> widget -> (event -> IO ()) -> IO Bool Source #
ToGtkCallback (IO Bool) Impure Source #
Instance details Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions Methods toGtkCallback :: EventHandler (IO Bool) widget Impure event -> widget -> (event -> IO ()) -> IO Bool Source #
ToGtkCallback (IO ()) Pure Source #
Instance details Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions Methods toGtkCallback :: EventHandler (IO ()) widget Pure event -> widget -> (event -> IO ()) -> IO () Source #
ToGtkCallback (IO ()) Impure Source #
Instance details Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions Methods toGtkCallback :: EventHandler (IO ()) widget Impure event -> widget -> (event -> IO ()) -> IO () Source #
ToGtkCallback y purity => ToGtkCallback (x -> y) purity Source #
Instance details Defined in GI.Gtk.Declarative.Attributes.Internal.Conversions Methods toGtkCallback :: EventHandler (x -> y) widget purity event -> widget -> (event -> IO ()) -> x -> y Source #