IBus bug demonstration

texttest.py

#!/usr/bin/python3
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gdk


class TextTestWindow(Gtk.Window):
    def __init__(self):
        super().__init__(title="Hello World")

        self.box = Gtk.VBox(spacing=6)
        self.add(self.box)

        self.entry = Gtk.Entry()
        self.entry.connect("key-press-event", self.on_key_press)
        self.box.add(self.entry)

        self.label = Gtk.Label()
        self.box.add(self.label)

    def on_key_press(self, widget, event):
        print("Keypress:", event.keyval)
        if event.keyval == Gdk.KEY_Return:
            t = self.entry.get_text()
            self.label.set_text(t)
            return True  # This causes IBus to fail

win = TextTestWindow()
win.connect("delete-event", Gtk.main_quit)
win.show_all()
Gtk.main()