audio - How to play custom GUI sounds in GTK3 Python app?

Question

Tinkering with a small GTK3 app in Python3, I can trigger XDG theme sounds like so:

#!/usr/bin/python3

import gi
gi.require_version("Gtk", "3.0")
gi.require_version('GSound', '1.0')
from gi.repository import Gtk, GSound

class PyApp:
  def __init__(self):
    super(PyApp, self).__init__()

    self.builder = Gtk.Builder()
    self.builder.add_from_file("test.glade")

    handlers = {
        "onButtonClick": self.onButtonClick
    }
    self.builder.connect_signals(handlers)

    self.sound = GSound.Context()
    self.sound.init()

    self.window = self.builder.get_object("window1")
    self.window.show_all()

  def onButtonClick(self, button):
    self.sound.play_simple({ GSound.ATTR_EVENT_ID : "phone-incoming-call" })

if __name__ == "__main__":
  app = PyApp()
  Gtk.main()

But how do I make GSound play my own sounds? Do I have to construct a custom XDG theme, and if so do I have to install this in the correct system folder (e.g. /usr/share/sounds/), or can I bundle it stand-alone with my app? Also, how do I tell the Gsound.context() which theme to use? Very little information available about this.

Edit: This looked promising:

self.sound = GSound.Context()
self.sound.set_attributes({GSound.ATTR_CANBERRA_XDG_THEME_NAME: "freedesktop"})

Alas:

gi.repository.GLib.Error: gsound - error - quark: Invalid argument (-2)

question from:https://stackoverflow.com/questions/65848724/how-to-play-custom-gui-sounds-in-gtk3-python-app

Answer 1

Waitting for answers