How to define signals?

[tokyob0t]

So, im trying to make a custom GObject.Object with custom props/signals but idk how to

atm i know how to define custom props

local MyClass = GObject.Object:derive('MyClass')

MyClass._property.my_property =
    GObject.ParamSpecString('my_property', 'my_property', 'my_property', '', { 'READWRITE' })

MyClass._signal.my_signal = {} -- ????? idk what goes here

local obj = MyClass { my_property = 'Hello, World!' }
obj.my_property = 'New Value'

obj.on_my_signal = function() end -- do something

[oezingle]

Using LGI internals like _property probably isn’t a good idea, as they’re not likely to apply back to your GObject.

Have a read of https://docs.gtk.org/gobject/tutorial.html. LGI should provide all the functions needed, though they’ll be namespaced per-library, and you may run into some functions that are handled differently for language bindings. the GObject docs will have a line at the bottom of a function or method’s definition that mentions if that function is unavailable to language bindings.

As for signals, apparently they’re defined by GObject.signal_newv

[tokyob0t]

According to docs/guide.md in 3.8.2 Installing new properties thats how props are defined.

Also, the functions GObject.signal_new/GObject.signal_newv do not exist in lua