I'm designing a text editor-esque application using Python2.7 and Gtk3, and I'm not very sure on how to set up a handler to check if the main TextView is currently in focus, so I can disable menu items (e.g. Edit -> Copy etc.) accordingly.
In order to create the tabbed text editor, I use a Gtk.Notebook as the main body, and each time File -> New is activated I create a new ScrolledWindow and TextView to create a new tab in the text editor:
def on_imagemenuitemNew_activate(self, *args):
editor = Gtk.ScrolledWindow()
editor.add(Gtk.TextView())
editor.set_shadow_type(Gtk.ShadowType.IN)
editor.show_all()
#The instance of Gtk.Notebook is passed to the handler as user data in args[0]
args[0].append_page(editor, Gtk.Label('untitled'))
This works fine but if I try to use:
editor.connect('focus-in-event', self.on_editor_focus_in_event)
inside the block then it is never registered by my handler:
def on_editor_focus_in_event(self, *args):
print 'Focused!'
I suspect the issue may be due to each editor instance seemingly being identical but this really has me stumped. Forgive the sloppy coding, I only started learning GTK yesterday, and Pygobject/Gtk3 is not very well documented.
In your code, editor is a Gtk.ScrolledWindow. I don't think ScrolledWindows can have the focus. Try connecting to the focus-in event of your TextView, making sure to enable the correct mask as @TinaBrooks pointed out.