Commit Graph

67 Commits

Author SHA1 Message Date
Pekka Paalanen
8cc153b350 xwm: debug print deleted property name
Use wm_log_continue() to avoid printing the timestamp in the middle of a
message.

Print the name of the property that got deleted.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2017-01-17 16:35:35 +02:00
Pekka Paalanen
73428a8be2 xwm: debug changes to override-redirect flag
For every event we handle and that delivers the override-redirect flag,
print it to debug log.

Add a comment to one code path explaining when it gets hit, because it
is unobvious. It also serves as a reminder that we do not handle changes
to the OR flag after Window creation.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2017-01-17 16:35:35 +02:00
Pekka Paalanen
c9ca2c0262 xwm: move set_title and set_pid
Move the calls to set_title() and set_pid() out of
weston_wm_window_read_properties() and into the three callers, each
slightly different.

xserver_map_shell_surface(): already calls these functions after
creating the shell surface, so no need to add calls.

weston_wm_handle_map_request(): can be called only on unmapped (in X11)
Windows, so no need to add calls.

weston_wm_window_draw_decoration(): window->shsurf and window->surface
are either both set or both NULL, so the check for window->shsurf is
removed when moving the set_title() and set_pid() calls under a
window->surface check.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2017-01-17 16:35:35 +02:00
Pekka Paalanen
9a330e1abb xwm: move frame_set_title() into draw_decoration()
The only thing using the frame title is frame_repaint(). Move the call
to frame_set_title() from weston_wm_window_read_properties() into
weston_wm_window_draw_decoration() where the only call to
frame_repaint() is.

Do not check for window->name == NULL, because frame_set_title() handles
NULL just fine. Also, once window->name becomes set, it cannot become
NULL again unless strndup() fails. The name string can be reset to
the empty string in any case.

This change is prompted by future refactoring where at
weston_wm_window_read_properties() time the frame might not have been
created yet.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2017-01-17 16:35:35 +02:00
Pekka Paalanen
20111d5d53 xwm: clarify props[] in weston_wm_window_read_properties()
The props array contained offsets to struct members. It is convenient
for writing static const arrays as you only store a constant offset and
compute the pointer later. However, the array was not static to begin
with, the atoms are not build time constants. We can as well just store
the pointer directly in the array.

Entries that did not use the offset had bogus offsets, producing
pointers to arbitrary fields. They are changed to have a NULL pointer.
If the code unintentionally used the pointer, it will now explode rather
than corrupt memory.

Also explain the use of the #defined constants and #undef them when they
get out of scope. This clearly documents that they are just a convenient
hack to avoid lots of special cases in the function.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2017-01-17 16:35:35 +02:00
Pekka Paalanen
505237e9f8 xwm: detect legacy fullscreen on MapRequest
The legacy fullscreen state needs to be detected at MapRequest time,
because that is when the X11 client has alredy set up the initial window
state.

Doing it at xserver_map_shell_surface() meant that it would be done as a
response to Xwayland creating the wl_surface and XWM receiving the
WL_SURFACE_ID ClientMessage, whichever came later. At that point the X11
client might still be setting things up in theory, though in practice
most of the X11 communication has already happened when
xserver_map_shell_surface() gets called.

The real reason for this is to clean up xserver_map_shell_surface() from
everything that would affect drawing the decorations. This patch is one
part of that clean-up.

The weston_output_weak_ref logic is not put into compositor.h, because
there are no other users for it at this time. We need to protect against
the output going away.

A side-effect of this patch is that saved_width and saved_height will
now get overwritten also for legacy fullscreen windows. Previously, they
were left to zero as far as I could tell.

NOTE: This stops override-redirect legacy fullscreen windows from being
detected as fullscreen. MapRequest processing does not happen for OR
windows. These windows get detected as type XWAYLAND instead.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2017-01-17 16:35:35 +02:00
Pekka Paalanen
a04eacc488 xwayland: WM debug prints
Add WM debug prints on map, decoration drawing and geometry setting.
These help see the sequence and timing of operations, when debugging
Xwayland window management glitches.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
2017-01-17 16:35:35 +02:00
Abdur Rehman
b8b150bf6f xwayland: fix three minor typos
Signed-off-by: Abdur Rehman <arehmanq199@gmail.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
2017-01-03 11:59:19 +00:00
Pekka Paalanen
44660c3b9c XWM: debug position and size on map request
Helps debugging initial placement problems.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2016-11-24 16:42:16 +02:00
Pekka Paalanen
7db6c43b5b XWM: debug position on create_notify
Helps debugging X11 window positioning issues.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2016-11-24 16:42:16 +02:00
Tom Hochstein
e7fff215ad xwayland: Fix crash when run with no input device
Starting an xterm with no input device led to a crash
because weston_wm_pick_seat() was returning garbage and
weston_wm_selection_init() was trying to use the garbage.

Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2016-11-16 16:44:20 +00:00
Daniel Stone
67fe3dbdd0 xwayland: Move includes to avoid deprecation warnings
compositor.h already helpfully defines WL_HIDE_DEPRECATED for us, so we
don't get warnings about wl_buffer (in particular) being deprecated when
we have wayland-server headers defining it as deprecated, and then
wayland-client headers using the type.

Move it to be before all our other includes, so we actually make use of
it.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Tested-by: Yong Bakos <ybakos@humanoriented.com>
2016-11-01 17:02:38 +00:00
Quentin Glidic
d8b17bc452
share/cairo-util: Use wl_pointer_button_state enum directly
This silences two warnings:

clients/window.c:2450:20: warning: implicit conversion from enumeration
type 'enum wl_pointer_button_state' to different enumeration type 'enum
frame_button_state' [-Wenum-conversion]
                                              button, state);
                                                      ^~~~~

clients/window.c:2453:15: warning: implicit conversion from enumeration
type 'enum wl_pointer_button_state' to different enumeration type 'enum
frame_button_state' [-Wenum-conversion]
                                                button, state);
                                                        ^~~~~

Warning produced by Clang 3.8.

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
2016-09-24 11:52:56 +02:00
Quentin Glidic
955cec06c7
xwayland: Introduce a private struct for XWayland interface
libweston-desktop implements this private struct.

Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
Acked-by: Giulio Camuffo <giulio.camuffo@kdab.com>

Differential Revision: https://phabricator.freedesktop.org/D1208
2016-08-14 09:29:08 +02:00
Quentin Glidic
2edc3d5462
libweston: Rename weston_surface::configure to ::committed
Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
Acked-by: Giulio Camuffo <giulio.camuffo@kdab.com>

Differential Revision: https://phabricator.freedesktop.org/D1246
2016-08-14 09:28:50 +02:00
Jussi Kukkonen
649bbce607 include stdint.h for int32_t/uint32_t
Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
2016-07-26 16:26:08 -07:00
Jonas Ådahl
f7deb6a959 compositor: Pass both surface and seat in activation signal
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2016-07-26 17:21:15 +08:00
Giulio Camuffo
f05d18f3ee xwm: let the shells decide the position of X windows
The xwm used to automatically send to Xwayland the position of X windows
when that changed, using the x,y of the primary view of the surface.
This works fine for the desktop shell but less so for others.
This patch adds a 'send_position' vfunc to the weston_shell_client that
the shell will call when it wants to let Xwayland know what the position
of a window is.
The logic used by the desktop-shell for that is exactly the same the xwm
used to have.
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: David Fort <contact@hardening-consulting.com>
2015-12-18 11:48:25 -06:00
Chris Michael
2ec5f2a633 cosmetic: Remove use of C++ style comments
Patch updated to remove dead lines as suggested by Daniel Stone

Signed-off-by: Chris Michael <cp.michael@samsung.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2015-12-03 15:28:53 -08:00
Giulio Camuffo
aa9747833e xwm: use always a valid 'primary view' for an X window
The xwm gets a primary view for a X window using the get_primary_view
vfunc of the shell_interface struct. Storing it is dangerous though
because it doesn't listen for its destruction so it may end up using the
old stored view pointer after that view was freed, or after the primary
view for that window was changed to another one.

Fetch the primary view just before using it every time and try to not
abuse this 'primary view' concept which may map badly to some shells:
iterate over all the views instead when it makes sense.

Tested-by: Benoit Gschwind <gschwind@gnu-log.net>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-09-29 18:22:45 -07:00
Benoit Gschwind
1a42ca1596 weston_wm: Implement _NET_ACTIVE_WINDOW
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-09-25 15:37:25 -07:00
Marek Chalupa
a1f3f3c9f2 xwm: flush xcb connection only when we processed some event
xwayland source is checked, so it dispatches twice on any event.
If the other turn has no events to dispatch, we flush the connection
redundantly

v2. do not flood logs with 'unhandled event' messages

Signed-off-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-09-22 18:35:01 -07:00
Dawid Gajownik
74a635b1ec Coding style fixes
- opening braces are on the same line as the if statement
- opening braces are not on the same line as the function name
- space between for/while/if and opening parenthesis

Signed-off-by: Dawid Gajownik <gajownik@gmail.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
2015-08-07 12:01:22 -07:00
Giulio Camuffo
b18f788e2e xwm: don't let X windows steal the focus
When we get a focus in event from an X window which is not the one
we last set as the active window, reset the focus.

Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2015-08-06 16:39:42 +01:00
Derek Foreman
e4d6c83986 desktop-shell: Make resize and move functions take a pointer instead of a seat
An earlier patch made surface_resize() and surface_move() take pointers
instead of seats, this updates the weston_shell_interface resize and move to
match.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2015-08-06 16:16:14 +01:00
Derek Foreman
1281a36e3b input: Don't test keyboard/pointer/touch pointers
Keyboards and pointers aren't freed when devices are removed, so we should
really be testing keyboard_device_count and pointer_device_count in most
cases, not the actual pointers. Otherwise we end up with different
behaviour after removing a device than we had before it was inserted.

This commit renames the touch/keyboard/pointer pointers and adds helper
functions to get them that hide this complexity and return NULL when
*_device_count is 0.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
2015-07-31 15:16:09 -07:00
Jon Cruz
35b2eaa989 Moved helper macro to a discrete include file.
To help reduce code duplication and also 'kitchen-sink' includes
the ARRAY_LENGTH macro was moved to a stand-alone file and
referenced from the sources consuming it. Other macros will be
added in subsequent passes.

Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-06-15 17:11:45 -07:00
Bryce Harrington
e00554bb70 xwayland: Fix a couple whitespace errors 2015-06-15 13:04:19 -07:00
Bryce Harrington
0a007dd21a xwayland: Update boilerplate from MIT X11 license to MIT Expat license 2015-06-15 13:04:19 -07:00
Murray Calavera
883ac02d22 Whitespace corrections
Signed-off-by: Murray Calavera <murray.calavera@gmail.com>
2015-06-06 12:39:51 -07:00
Dima Ryazanov
b0f5a25d16 xwm: Fix the window decoration hints.
Enable all hints by default. This fixes the "Maximize" button in apps that
don't set any hints - e.g., xclock or Firefox. (There's still a problem, though:
"decorate" is sometimes treated as a boolean, sometimes as a bitmask.)

Handle MWM_DECOR_ALL correctly. It looks like it's supposed to invert the values
of the rest of the flags.

Signed-off-by: Dima Ryazanov <dima@gmail.com>
Reviewed-By: Giulio Camuffo <giuliocamuffo@gmail.com>
2015-05-14 20:32:02 -07:00
Giulio Camuffo
84787ea45f xwm: make X windows of type 'utility' inactive
Skype's popup notifications use this type.
2015-05-08 14:28:02 -07:00
Derek Foreman
9a0b2b54e2 xwm: Fix a weston crash when a window surface is created after unmap
If windows are created and quickly destroyed it's possible that they'll be
on the unpaired window list at the time of surface creation.  The surface
destroy listener for that surface isn't properly freed and a crash happens
some time later.

This patch removes the window from the unpaired list during unmap, so we
should never get to the destroy handler with a surface destroy listener set.

Just in case there's another path to that failure, I've also removed the
surface destroy listener in the destory handler.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Acked-by: Jasper St. Pierre <jstpierre@mecheye.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-04-10 10:00:59 +03:00
Derek Foreman
4937214999 xwm: Add and use helper function for looking up windows in the hash table
This lets us verify that all callers are actually testing for a
successful hash lookup at compile time.

All current users of hash_table_lookup are converted to the new
wm_lookup_window() and the appropriate success check is added.
This fixes any call sites that used to assume a successful return
and dereference a NULL pointer.

This closes http://bugs.freedesktop.org/show_bug.cgi?id=83994
The xwayland test has been failing because weston crashes due to
a hash lookup failure and a subsequent dereference of the returned
NULL pointer.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-04-10 09:30:05 +03:00
Derek Foreman
b4deec6490 xwm: fix extra break
The first break in TYPE_WM_PROTOCOLS was almost certainly intended to be
nested within the if statement.

Even if it wasn't, it makes sense there.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-04-08 15:21:17 +03:00
Jasper St. Pierre
f30af4e50d xwayland: Stack windows on top when activating them
Now that we've removed the XYToWindow handler in Xwayland, we actually
have to stack windows properly. This stacks windows on top when
activating them.

Note that for a fully robust Xwayland implementation, we'll need a
complete stack tracker implementation, unfortunately.

Reviewed-by: Daniel Stone <daniels@collabora.com>
2015-04-06 18:10:20 +01:00
Giulio Camuffo
a8e9b41578 xwm: tell the shell the pid of the X clients
All the surfaces from all the X clients share the same wl_client so
wl_client_get_credentials can't be used to get the pid of the X
clients.
The shell may need to know the pid to be able to associate a surface
with e.g. a DBus service.

[Pekka: fixed trivial merge conflicts.]
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-03-30 16:04:57 +03:00
Jasper St. Pierre
d19e9b0e42 xwayland: Correct input for undecorated clients
We were correctly handling decorated and fullscreen clients, but left
uninitialized values in the input region for undecorated clients. Fix
this behavi-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>

Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-03-27 08:57:00 +02:00
Ryo Munakata
f3744f5e86 xwayland: wm: fix an invalid read
This `for` statement needs corresponding braces.

Signed-off-by: Ryo Munakata <ryomnktml@gmail.com>
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2015-03-11 11:58:53 +02:00
Derek Foreman
f10e06c77a xwm: remove the create surface listener in weston_wm_destroy
Failing to remove this can result in a crash when the signal is sent
after the window manager is destroyed.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-By: Giulio Camuffo <giuliocamuffo@gmail.com>
2015-02-06 17:31:24 -08:00
Giulio Camuffo
6b4b24155f xwm: support maximizing xwayland windows
This patch adds the maximize button to the window frame for the windows
which set the MWM_DECOR_MAXIMIZE hint, and it wires it with the shell
via a new method in weston_shell_interface.
Additionally, it also listens for the wm hints coming from the client,
but it doesn't support maximizing a window only vertically or horizontally.
The window will be maximized only when both directions are maximized.

Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-02-02 16:00:10 -08:00
Giulio Camuffo
e90ea44a02 xwm: set the _NET_WM_DESKTOP property of the windows
Some X clients use the _NET_WM_DESKTOP property to tell if the window
is mapped or not. If set, it should say the virtual desktop the window
is currently in, if unset it means the window is unmapped.
The xwm currently has no way to know how many virtual desktops
the shell plugin has, or if it even implements the metaphor. For now
just set the property to 0, meaning the first desktop, if the window is
mapped, and delete the property when unmapped.

Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-01-27 14:10:07 -08:00
Giulio Camuffo
836b9c7177 xwm: don't set inactive surfaces as top level
Some X clients create popup or tooltips windows as top level, without
setting them as override redirect or as transient. Since we don't want
to take the focus away from a surface when one of its popup is opened,
check the _NET_WM_WINDOW_TYPE of the X surfaces being mapped and set
them as inactive if it is one of some types.

Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
2015-01-26 11:25:19 -08:00
Andrew Engelbrecht
4c5a6f7a18 xwm: fix a crash in handle_state
To produce the bug, build and run: (you don't need the game data to test)

https://github.com/clintbellanger/flare-engine/

$ mv ~/.config/flare ~/.config/flare.bak
$ ./flare  # click 'configure', set full screen mode then click 'ok'
           # weston will crash and dump core.

[Pekka: edited the commit message]
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-12-11 17:21:06 +02:00
Marek Chalupa
e9fe467453 xwayland: fix fullscreening
set_fullscreen has been sending configure before changing the state
and xwayland windows added border to the fullscreen size.

This fixes the bug:
https://bugs.freedesktop.org/show_bug.cgi?id=83502

Signed-off-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-by: Ryo Munakata <ryomnktml@gmail.com>
Tested-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-11-21 15:14:55 +02:00
Marek Chalupa
0d7fe8d925 toytoolkit: rename tile_mask to render_shadow
This function is used and clearly designed only for drawing the shadows.
Rename it so that it has name after what it does and also move some
common code into the function.

Signed-off-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-11-19 15:39:36 +02:00
Giulio Camuffo
ad7305ad74 xwm: find a seat for all the surface's views
This allows to move or resize a xwayland client by acting on all
its views.
2014-11-18 15:00:27 +02:00
Pekka Paalanen
50b6747903 compositor: send error for surface role resets
With the more accurate definition of wl_surface roles in Wayland,
enforce the restriction: a role is always set permanently, and
attempting to change it is a protocol error.

This patch is based on Jasper's patch:
http://lists.freedesktop.org/archives/wayland-devel/2014-August/016811.html

The difference in this patch compared to his are:

- send role errors on the interface whose request triggers it, not on
  wl_surface

- an interface could have several requests assigning different roles,
  cannot use wl_interface as the unique key; use an arbitary string
  instead

- ensure in window-manager.c that create_shell_surface() ->
  create_common_surface() is never called with surface->configure set,
  to avoid compositor abort

- use wl_resource_post_no_memory() where appropriate instead of
  hand-rolling it with wl_resource_post_error()

Ideally we would not add weston_surface::role_name field, but use
weston_surface::configure. At the moment this is not possible though,
because at least shell.c uses several different roles with the same
configure function. Drag'n'drop uses two configure functions for the
same role. The configure hook is also reset in several places,
which is not good for role tracking.

This patch overlooks the wl_surface roles assigned in privileged
extensions: screensaver, panel, background, lock, input panel.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
2014-10-08 13:16:30 +03:00
Boyan Ding
b9f863ca57 xwm: Do not activate override redirect windows
We shouldn't do WM-y things on an O-R window, including setting input
focus to it.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=81273
Signed-off-by: Boyan Ding <stu_dby@126.com>
Tested-by: Ryo Munakata <ryomnktml@gmail.com>
Acked-by: Christopher Michael <cp.michael@samsung.com>
2014-09-04 15:16:04 +03:00
Boyan Ding
3c6d20c5eb xwm: Check whether the seat is NULL when needed in weston_wm_handle_button
XCB and wayland input event handling exists together in xwm, which can
cause problems. weston_wm_handle_button is called via XCB events, while
it calls weston_wm_pick_seat_for_window, which uses info from compositor
(pure wayland). It is also true in setting and removing flags of frames.
Races can happen in between, when resize of moving flag of the frame is
still set while the button has been released, the picked seat will be
NULL in weston_wm_handle_button, causing crash. We can safely ignore
moving or resizing if this happens. The same applies to c06a180d.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=82827
Signed-off-by: Boyan Ding <stu_dby@126.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2014-09-03 16:07:34 +03:00