Gtk Notebook call function every time a certain tab is selected

Question

I want a tab on my notebook that pretty much does the same like a button. Every time I select this tab it should execute a certain job (for example print('something') ).

How do I get it to execute every time I open it? Right now it just executes once on startup and that's it.

If someone has some advice on this subject I'd really apreciate some help!

score 2 · Accepted Answer · answered Jul 07 '17 at 11:45

2

You're looking for the switch-page signal:

def callback(notebook, tab, index):
    if index == index_of_the_tab:
        print('selected')

    # alternatively:
    # if tab is the_tab:
    #     print('selected')

notebook.connect('switch-page', callback)

answered Jul 07 '17 at 11:45

Aran-Fey

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Thank you, your answer is very useful. How do we utilize a method like this when the current tab is reselected? In my case, I want to utilize the callback when a different tab is selected (Solved by your answer) as well as when the current tab is selected yet again. – Michael Sinclair Jan 05 '21 at 23:15

score 1 · Answer 2 · answered Jul 07 '17 at 11:44

You can use the switch-page signal.

The callback prototype includes the page number id so that you can figure out to which page you are switching.

void user_function (GtkNotebook *notebook, GtkWidget *page, guint page_num, gpointer user_data)

Gtk Notebook call function every time a certain tab is selected

2 Answers2