153f37bdf5 (#1145) removed the
wlr_xwayland_is_unamanged function while fixing OR, because it was
belieived that it's supposed to work around the broken OR handling.
This was a misunderstanding. is_unmanaged is (while sort of a hack)
intended to work around inherent differences between "real" X sessions
and our Xwayland/wayland situation.
The main reason it exists is to support applications like rofi and dzen,
while not handing focus to other OR windows (which should *not* be
required).
Traditionally, these applications just grabbed input from X and didn't
need to be focused by any logic in the WM. Which of course doesn't work
in wayland compositors. So we have to give them focus in some way.
Giving *every* OR window focus, breaks other applications that don't
expect focus to change.
A testcase that was pointed out to me where wlr_xwayland_is_unamanged was
breaking things is https://github.com/swaywm/sway/issues/2128 (syncplay,
gitk, gitgui)
Supposedly it broke using keyboard to navigate the menus.
I can't reproduce this with this patch. The popups can be navigated as
long as the parent has focus.
The override_redirect flag can change on configure notify and
on map notify. This adds an event to know when it changes.
This removes wlr_xwayland_surface_is_unmanaged which was wrongly
using the window type to decide whether the view should be
unmanaged.
A similar patch was proposed to Weston, but has never been
merged upstream [1].
[1]: https://patchwork.freedesktop.org/patch/211161/
Happens when e.g. closing gimp.
==24039==ERROR: AddressSanitizer: heap-use-after-free on address 0x6150001a7a78 at pc 0x7f09b09f1bb2 bp 0x7ffcf0237bf0 sp 0x7ffcf0237be0
WRITE of size 8 at 0x6150001a7a78 thread T0
#0 0x7f09b09f1bb1 in wl_list_remove ../util/signal.c:55
#1 0x7f09b094cf03 in xwayland_surface_destroy ../xwayland/xwm.c:295
#2 0x7f09b0950245 in xwm_handle_destroy_notify ../xwayland/xwm.c:717
#3 0x7f09b095304a in x11_event_handler ../xwayland/xwm.c:1149
#4 0x7f09b0c68f01 in wl_event_loop_dispatch src/event-loop.c:641
#5 0x7f09b0c67601 in wl_display_run src/wayland-server.c:1260
#6 0x40a2f4 in main ../sway/main.c:433
#7 0x7f09b011018a in __libc_start_main (/lib64/libc.so.6+0x2318a)
#8 0x40b749 in _start (/opt/wayland/bin/sway+0x40b749)
0x6150001a7a78 is located 120 bytes inside of 496-byte region [0x6150001a7a00,0x6150001a7bf0)
freed by thread T0 here:
#0 0x7f09b2b58880 in __interceptor_free (/lib64/libasan.so.5+0xee880)
#1 0x7f09b094d1a1 in xwayland_surface_destroy ../xwayland/xwm.c:315
#2 0x7f09b0950245 in xwm_handle_destroy_notify ../xwayland/xwm.c:717
#3 0x7f09b095304a in x11_event_handler ../xwayland/xwm.c:1149
#4 0x7f09b0c68f01 in wl_event_loop_dispatch src/event-loop.c:641
#5 0x7f09b0c67601 in wl_display_run src/wayland-server.c:1260
#6 0x40a2f4 in main ../sway/main.c:433
#7 0x7f09b011018a in __libc_start_main (/lib64/libc.so.6+0x2318a)
#8 0x40b749 in _start (/opt/wayland/bin/sway+0x40b749)
previously allocated by thread T0 here:
#0 0x7f09b2b58e50 in calloc (/lib64/libasan.so.5+0xeee50)
#1 0x7f09b094b585 in xwayland_surface_create ../xwayland/xwm.c:119
#2 0x7f09b0950151 in xwm_handle_create_notify ../xwayland/xwm.c:706
#3 0x7f09b0953032 in x11_event_handler ../xwayland/xwm.c:1146
#4 0x7f09b0c68f01 in wl_event_loop_dispatch src/event-loop.c:641
#5 0x7f09b0c67601 in wl_display_run src/wayland-server.c:1260
#6 0x40a2f4 in main ../sway/main.c:433
#7 0x7f09b011018a in __libc_start_main (/lib64/libc.so.6+0x2318a)
#8 0x40b749 in _start (/opt/wayland/bin/sway+0x40b749)
Some comboboxes (e.g. in chrome://flags) are advertized as…
Notifications of course! Yeah, notifications, the thing that
tells you you have mail, your battery is low, or the dog has
eaten your carpet. This isn't the first time we notice Chromium's
X11 backend is pretty shit.
Anyway, added notifications and splash screens to the list of
unmanaged windows. Also removed utility windows because those
should be managed, but maybe I'm wrong and I'll revert this.
xwm.h was meant to be private, so move it to include/xwayland/xwm.h
We had an ifdef WLR_HAS_XCB_ICCCM in xwayland.h which was easy to move
to xwm, it is not safe to use the WLR_HAS_* in the public headers.
I checked a few of our current users and none rely on xwm.h being
public as expected (rootston, sway, hsroots)
Ryan Dwyer
Markus Ongyerth
Drew DeVault
emersion
Armin Preiml
Dominique Martinet
Ilia Bozhinov