How to activate GtkNotebook page on middle click?

Platform
,
1

I found this widget works with GDK_BUTTON_PRIMARY only

How to make page activation on click GDK_BUTTON_MIDDLE too?

Thanks

2

Found how to assign all buttons by create new event controller, but still don’t understand how to activate the Notebook tab on click

// GtkNotebook Label widget
const auto controller = Gtk::GestureClick::create();

controller->set_button(
    0 // all
);

add_controller(
    controller
);

controller->signal_pressed().connect(
    [this](int n, double x, double y)
    {
        activate(); // not works
    }
);

upd. seems the answer is here:

thanks to

upd2.

this *code still does not work, lol

// Gtk::Notebook

const auto controller = Gtk::GestureClick::create();

controller->set_button(
    GDK_BUTTON_MIDDLE
);

add_controller(
    controller
);

controller->signal_pressed().connect(
    [this](int n, double x, double y)
    {
        auto widget = pick(x, y);

        if (NULL != widget)
        {
            auto i = page_num(*widget);

            if (i >= 0) // -1, fails as not found
            {
                set_current_page(i);
            }
        }
    }
);
4

Shouldn’t it be
auto i = page_num(widget);
?

1 Like
5

Also, don’t mix the tab widget with the page widget:

Should look like this:

tab_widget = pick(x, y);

for page in gtk_notebook_get_pages ()
    if page.tab == tab_widget
        i = page_num(page.child);
        set_current_page(i);
1 Like
6

Thanks for advice, after some pause returned to this question, let me try again…

By the way, interesting, is it possible to assign few buttons to one GestureClick, not create 2 separated controllers for primary and middle click?

7

No: you’re supposed to create a different event controller, since you’re likely going to have two different behaviours.

1 Like
8

Thanks,

but what about close (or activate) tab on middle click?

I wonder pick(x, y) is only one possible solution, but it’s super tricky, can’t believe there is no way to emit this signal to this Label, the parent GtkGizmo, or assign one click controller to another one (if I can’t use few buttons for one GestureClick)

Found this idea

but why so hard for simple task… thoughts make new action, assign it to the label widget and try to activate on middle click

9

libadwaita does everything I want