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Update EWMH atoms when closing a workspace container 

fix #3126
This commit is contained in:
Alex Lu 2018-02-11 19:05:43 +08:00
parent 9610dc29b8
commit 147d3c354a
2 changed files with 118 additions and 0 deletions
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7
src/tree.c
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@ -330,6 +330,13 @@ bool tree_close_internal(Con *con, kill_window_t kill_window, bool dont_kill_par
DLOG("parent container killed\n");
}
if (ws == con) {
DLOG("Closing a workspace container, updating EWMH atoms\n");
ewmh_update_number_of_desktops();
ewmh_update_desktop_names();
ewmh_update_wm_desktop();
}
con_free(con);
/* in the case of floating windows, we already focused another container

111
testcases/t/294-update-ewmh-atoms.t Normal file
View File

@ -0,0 +1,111 @@
#!perl
# vim:ts=4:sw=4:expandtab
#
# Please read the following documents before working on tests:
# • https://build.i3wm.org/docs/testsuite.html
# (or docs/testsuite)
#
# • https://build.i3wm.org/docs/lib-i3test.html
# (alternatively: perldoc ./testcases/lib/i3test.pm)
#
# • https://build.i3wm.org/docs/ipc.html
# (or docs/ipc)
#
# • http://onyxneon.com/books/modern_perl/modern_perl_a4.pdf
# (unless you are already familiar with Perl)
#
# Verifies _NET_DESKTOP_NAMES, _NET_CURRENT_DESKTOP and _NET_CURRENT_DESKTOP
# are updated properly when closing an inactive workspace container.
# See github issue #3126
use i3test;
sub get_desktop_names {
sync_with_i3;
my $cookie = $x->get_property(
0,
$x->get_root_window(),
$x->atom(name => '_NET_DESKTOP_NAMES')->id,
$x->atom(name => 'UTF8_STRING')->id,
0,
4096,
);
my $reply = $x->get_property_reply($cookie->{sequence});
return 0 if $reply->{value_len} == 0;
# the property is a null-delimited list of utf8 strings ;;
return split /\0/, $reply->{value};
}
sub get_num_of_desktops {
sync_with_i3;
my $cookie = $x->get_property(
0,
$x->get_root_window(),
$x->atom(name => '_NET_NUMBER_OF_DESKTOPS')->id,
$x->atom(name => 'CARDINAL')->id,
0,
4,
);
my $reply = $x->get_property_reply($cookie->{sequence});
return undef if $reply->{value_len} != 1;
return undef if $reply->{format} != 32;
return undef if $reply->{type} != $x->atom(name => 'CARDINAL')->id,;
return unpack 'L', $reply->{value};
}
sub get_current_desktop {
sync_with_i3;
my $cookie = $x->get_property(
0,
$x->get_root_window(),
$x->atom(name => '_NET_CURRENT_DESKTOP')->id,
$x->atom(name => 'CARDINAL')->id,
0,
4,
);
my $reply = $x->get_property_reply($cookie->{sequence});
return undef if $reply->{value_len} != 1;
return undef if $reply->{format} != 32;
return undef if $reply->{type} != $x->atom(name => 'CARDINAL')->id,;
return unpack 'L', $reply->{value};
}
cmd 'workspace 0';
my $first = open_window;
cmd 'workspace 1';
my $second = open_window;
cmd 'workspace 2';
my $third = open_window;
# Sanity check
is(get_current_desktop, 2);
is(get_num_of_desktops, 3);
my @actual_names = get_desktop_names;
my @expected_names = ('0', '1', '2');
is_deeply(\@actual_names, \@expected_names);
# Kill first window to close a workspace.
cmd '[id="' . $second->id . '"] kill';
is(get_current_desktop, 2, '_NET_CURRENT_DESKTOP should be updated');
is(get_num_of_desktops, 2, '_NET_NUMBER_OF_DESKTOPS should be updated');
my @actual_names = get_desktop_names;
my @expected_names = ('0', '2');
is_deeply(\@actual_names, \@expected_names, '_NET_DESKTOP_NAMES should be updated');
done_testing;