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Dont set input focus and send WM_TAKE_FOCUS 

If input focus is set by the window manager, it is not necessary to send
WM_TAKE_FOCUS because it has already taken focus.

http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.7

> The goal is to support window managers that want to assign the input
> focus to a top-level window in such a way that the top-level window
> either can assign it to one of its subwindows or can decline the offer
> of the focus. For example, a clock or a text editor with no currently
> open frames might not want to take focus even though the window
> manager generally believes that clients should take the input focus
> after being deiconified or raised.

Both setting input focus and sending WM_TAKE_FOCUS is effectively
setting focus on the window twice which is certainly against the spirit
of the spec, if not the letter.

fixes #1167
next
Tony Crisci 2014-04-10 13:28:14 -04:00 committed by Michael Stapelberg
parent 819bc09375
commit 05f0585817
2 changed files with 39 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/x.c
View File

@ -1006,20 +1006,16 @@ void x_push_changes(Con *con) {
/* Invalidate focused_id to correctly focus new windows with the same ID */
focused_id = XCB_NONE;
} else {
bool set_focus = true;
if (focused->window != NULL &&
focused->window->needs_take_focus) {
focused->window->needs_take_focus &&
focused->window->doesnt_accept_focus) {
DLOG("Updating focus by sending WM_TAKE_FOCUS to window 0x%08x (focused: %p / %s)\n",
to_focus, focused, focused->name);
send_take_focus(to_focus, last_timestamp);
set_focus = !focused->window->doesnt_accept_focus;
DLOG("set_focus = %d\n", set_focus);
if (!set_focus && to_focus != last_focused && is_con_attached(focused))
if (to_focus != last_focused && is_con_attached(focused))
ipc_send_window_event("focus", focused);
}
if (set_focus) {
} else {
DLOG("Updating focus (focused: %p / %s) to X11 window 0x%08x\n", focused, focused->name, to_focus);
/* We remove XCB_EVENT_MASK_FOCUS_CHANGE from the event mask to get
* no focus change events for our own focus changes. We only want

45
testcases/t/158-wm_take_focus.t
View File

@ -16,12 +16,14 @@
#
# Tests if the WM_TAKE_FOCUS protocol is correctly handled by i3
#
# For more information on the protocol and input handling, see:
# http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.7
#
use i3test;
subtest 'Window without WM_TAKE_FOCUS', sub {
fresh_workspace;
sub recv_take_focus {
my ($window) = @_;
my $window = open_window;
# sync_with_i3 will send a ClientMessage to i3 and i3 will send the same
# payload back to $window->id.
my $myrnd = sync_with_i3(
@ -44,12 +46,20 @@ subtest 'Window without WM_TAKE_FOCUS', sub {
return ($rnd == $myrnd);
};
ok($first_event_is_clientmessage, 'did not receive ClientMessage');
return !$first_event_is_clientmessage;
}
subtest 'Window without WM_TAKE_FOCUS', sub {
fresh_workspace;
my $window = open_window;
ok(!recv_take_focus($window), 'did not receive ClientMessage');
done_testing;
};
subtest 'Window with WM_TAKE_FOCUS', sub {
subtest 'Window with WM_TAKE_FOCUS and without InputHint', sub {
fresh_workspace;
my $take_focus = $x->atom(name => 'WM_TAKE_FOCUS');
@ -59,16 +69,31 @@ subtest 'Window with WM_TAKE_FOCUS', sub {
protocols => [ $take_focus ],
});
# add an (empty) WM_HINTS property without the InputHint
$window->delete_hint('input');
$window->map;
ok(wait_for_event(1, sub {
return 0 unless $_[0]->{response_type} == 161;
my ($data, $time) = unpack("L2", $_[0]->{data});
return ($data == $take_focus->id);
}), 'got ClientMessage with WM_TAKE_FOCUS atom');
ok(recv_take_focus($window), 'got ClientMessage with WM_TAKE_FOCUS atom');
done_testing;
};
# If the InputHint is unspecified, i3 should use the simpler method of focusing
# the window directly rather than using the WM_TAKE_FOCUS protocol.
# XXX: The code paths for an unspecified and set InputHint are
# nearly identical presently, so this is currently used also as a proxy test
# for the latter case.
subtest 'Window with WM_TAKE_FOCUS and unspecified InputHint', sub {
fresh_workspace;
my $take_focus = $x->atom(name => 'WM_TAKE_FOCUS');
my $window = open_window({ protocols => [ $take_focus ] });
ok(!recv_take_focus($window), 'did not receive ClientMessage');
done_testing;
};
done_testing;