I'm trying to send a GLib.Notification from my application and pass a string parameter.
The name of the action is action-show-chat-view, and it is registered in the activate () method of my main application class:
public class MyApplication : Gtk.Application {
protected override void activate () {
// ...
var show_chat_view_action = new GLib.SimpleAction ("action-show-chat-view", GLib.VariantType.STRING);
show_chat_view_action.activate.connect ((parameter) => {
debug ("beep boop");
debug (parameter.get_string ());
});
add_action (show_chat_view_action);
// ...
}
}
To send the notification, I do the following:
var notification = new GLib.Notification ("Hello, world");
var target = new GLib.Variant.string ("foobar");
notification.set_default_action_and_target_value ("app.action-show-chat-view", target);
app.send_notification (null, notification); // app is the instance of the MyApplication class above
The notification is sent correctly and appears as expected, however when the notification is clicked to activate the action, I receive the following error:
GLib-GIO-CRITICAL **: 13:04:37.169: g_simple_action_activate: assertion 'simple->parameter_type == NULL ? parameter == NULL : (parameter != NULL && g_variant_is_of_type (parameter, simple->parameter_type))' failed
Other things that I've tried:
If I replace
GLib.VariantType.STRINGwithnull, and passnullas the target value on the notification (and removingparameter.get_string ()), I see the "beep boop" console output so I know that everything is at least wired up correctly and calling the right methods.I have also tried registering the action with the
app.prefix as well, however I read somewhere in documentation that when added via theApplication.add_action ()this is implicit.I tried creating an action group with the type string
sbut got the same error.I've tried using other
Varianttypes besidesSTRINGI tried adding the following check before sending the notification to see if the types align, and they did:
app.get_action_parameter_type ("action-show-chat-view").equal (target.get_type ()). This failed if I used theapp.prefix, however I think that's expected behavior since it's registered without the prefix?I looked into Flatpak sandbox permissions (this part is all new to me), but since the notification is sent successfully, I don't think that's the problem.
