struct Gio::SimpleAction::ActivateSignal

Overview

Indicates that the action was just activated.

@parameter will always be of the expected type, i.e. the parameter type specified when the action was created. If an incorrect type is given when activating the action, this signal is not emitted.

Since GLib 2.40, if no handler is connected to this signal then the default behaviour for boolean-stated actions with a nil parameter type is to toggle them via the #GSimpleAction::change-state signal. For stateful actions where the state type is equal to the parameter type, the default is to forward them directly to #GSimpleAction::change-state. This should allow almost all users of #GSimpleAction to connect only one handler or the other.

Defined in:

lib/gi-crystal/src/auto/gio-2.0/simple_action.cr

Instance Method Summary

Instance methods inherited from struct GObject::Signal

[](detail : String) : self [], name : String name

Constructor methods inherited from struct GObject::Signal

new(source : GObject::Object, detail : String? = nil) new

Instance Method Detail

def connect(*, after : Bool = false, &block : Proc(GLib::Variant?, Nil)) : GObject::SignalConnection #

def connect(handler : Proc(GLib::Variant?, Nil), *, after : Bool = false) : GObject::SignalConnection #

def connect(handler : Proc(Gio::SimpleAction, GLib::Variant?, Nil), *, after : Bool = false) : GObject::SignalConnection #

def emit(parameter : _?) : Nil #

def name : String #
Description copied from struct GObject::Signal

The signal name