Cycle through active groups in the current screen

[asoymos]

Hi and thank you. I have two monitors with different groups for each as specified in FAQ and would be very useful to have a keyboard shorcut to cycle through the active groups only in the current screen. I have searched, read documentation, examples and discussions, but I am new to python and haven't found something simple that I can use. Any recommendations?

[elParaguayo]

Something like this:

@lazy.function
def loop_screen_groups(qtile):
    # Get the current screen index
    screen = qtile.current_screen.index
    # Find all groups marked for that screen or that have no affinity
    screen_groups = [g for g in qtile.groups if g.screen_affinity in [screen, None]]
    # Get the index of the next group
    current = screen_groups.index(qtile.current_group)
    next_index = (current + 1) % len(screen_groups)
    # Show that group
    screen_groups[next_index].toscreen()

[asoymos]

Thank you. It works well but it cycle through all groups of a screen, it is posible to cycle only active groups?

[elParaguayo]

What do you mean by active? That the group has windows? If so, change this line:

screen_groups = [g for g in qtile.groups if g.screen_affinity in [screen, None] and g.windows]

[asoymos]

Exactly that. Only thing now is that it can't be used to switch from an empty group, log complain: ValueError: <group.Group ('3')> is not in list. But it's very much what I needed, I will try to learn more and improve it. Thank you!

[elParaguayo]

My code doesn't include any error handling. It would be easy enough to add some to address that situation.

[asoymos]

(sorry for any lenguage mistakes, english is not my first lenguage) I am trying to make a conditional to detect if qtile.current_group in screen_groups.index: but log output argument of type 'builtin_function_or_method' is not iterable so how I can know if the current group is in screen_groups?

What I have is this:

@lazy.function
def loop_screen_active_groups(qtile):
    # Get the current screen index
    screen = qtile.current_screen.index
    # Find all groups marked for that screen or that have no affinity and that have windows
    screen_groups = [g for g in qtile.groups if g.screen_affinity in [screen, None] and g.windows]
    # si el grupo actual está en screen_groups
    if qtile.current_group in screen_groups.index:
        # Get the index of the next group
        current = screen_groups.index(qtile.current_group)
        next_index = (current + 1) % len(screen_groups)
        # Show that group
        screen_groups[next_index].toscreen()
    else:
        for group in screen_groups:
            qtile.current_screen.set_group(group)
            break

[asoymos]

(haven't read your last comment) Or how do you recommend to address the situation that if I am in an empty (no windows) group go to next active (with windows) group?