Rename xwm_map_shell_surface() to xwayland_surface_associate().
This function doesn't actually "map" the surface in Wayland
parlance, the wl_surface may not have a buffer attached yet.
This can be used to know when wlr_xwayland_server decides to start
a new Xwayland process. At that point the wl_client has already
been created but the Xwayland process hasn't been started yet.
Always keep it initialized, so that we don't have to check for
xsurface->surface_id.
Will help with WL_SURFACE_SERIAL support, which adds a new way for
a surface to be unpaired.
This allows whatever the user calls from the signal handlers to react to observe
the new state rather than the old, e.g. that a surface is no longer mapped in
the unmap handler.
The original commit introduced a bug by transposing the order of
some of the fields in xcb_size_hints_t. Since XCB ICCCM support is
required now, we can just eliminate the duplicate structs.
With minor changes:
- Remove #ifdef HAS_XCB_ICCCM guards
- Fix #includes
- Fix references to local size_hints struct
This reverts commit 12b9b1a4bd.
Using Xwayland -displayfd means we don't need to worry about handling
SIGUSR1 to second guess when Xwayland is ready and write to the pipe:
just let it do that write when it would be sending SIGUSR1 otherwise.
Closes: #3356
A launchee notifies with a "remove"¹ message when done starting up.
Catch these and forward to the compositor. This allows the compositor to
end the startup sequence that might have been started by another
protocol like xdg-activation.
We don't handle other messages since we expect the launcher to use a
wayland protocol like xdg-activation.
While `_NET_STARTUP_ID` helps to associate toplevels with startup-ids
this signals the end of the startup sequence.
1) https://specifications.freedesktop.org/startup-notification-spec/startup-notification-latest.txt
Currently, upon activating a surface, wlroots restacks it on top of all
others.
This may not necessarily be correct from the calling compositor's point
of view, where having focus may not imply being top-of-stack (e.g.,
focusing a window under an always-on-top window).
In Sway's case, this means that focused tiling windows will always be on
top of floating windows, at least in the order communicated to X11 apps.
This breaks drag-and-drop from a focused tiling X11 window to a floating
X11 window which partially obscures the former.
This is a breaking change; to retain the previous behavior, users that
were calling
wlr_xwayland_surface_activate(xsurface, true);
should now be calling
wlr_xwayland_surface_activate(xsurface, true);
wlr_xwayland_surface_restack(xsurface, NULL, XCB_STACK_MODE_ABOVE);
As more options are added, more fields will be duplicated. Let's
just embed the struct in wlr_xwayland_server so that we don't need
to keep both in sync.
This property is present on all modern X11 instances. The nonpresence of
it requires applications to fall back to XQueryTree-based logic to
determine stacking logic (e.g., to determine what surface should get
Xdnd events).
These code paths are effectively untested nowadays, so this makes it
more likely for wlroots to "break" applications. For instance, the
XQueryTree fallback path has been broken in Chromium for the last 10
years.
It's easy enough to maintain this property, so let's just do it.
Fixes#2889.
eec2e1d3b1 introduced logic to use the Xwayland
binary discovered via pkg-config.
While the newly introduced checks correctly used the binary from pkg-config,
the actual execution still used the previous PATH-search logic.
`_NET_WM_PID` is unreliable: it is optional and even if set it may
contain PIDs from sandbox namespaces or remote systems.
Prefer XRes v1.2 QueryClientIds method which returns PIDs as seen by the
Xwayland server.
wlroots' dependency on this library doesn't change the features
exposed to compositors. It's purely a wlroots implementation detail.
Thus downstream compositors shouldn't really care about it.
Introduce an "internal_features" dictionary to store the status of
such internal dependencies.
This dependency is already required by many other widely used X11
programs, such as i3, Qt, and other XWMs. So it should be available
on most systems.
X11 support can be pretty broken without xcb-icccm, with focus issues
for instance. Let's just remove this --please-break-my-desktop footgun
option.
Some X11 clients (e.g. Chromium, sxiv) don't set WM_HINTS. The spec
says:
> Window managers are free to assume convenient values for all fields of the
> WM_HINTS property if a window is mapped without one.
Our wlr_xwayland_icccm_input_model function assumes missing WM_HINTS
means the window doesn't want input, but this is incorrect. Assume the
window wants input unless it explicitly opts-out by setting WM_HINTS.
Closes: https://github.com/swaywm/sway/issues/6107
Instead of walking PATH like a previous proposal [1], this one
checks that the Xwayland path specified in the pkg-config file
exists.
I think this is a reasonable compromise:
- Users that don't have Xwayland installed system-wide won't get
a bogus DISPLAY env variable set up.
- Users that have WLR_XWAYLAND set won't be affected by this check.
- Users that have Xwayland installed system-wide and a different
Xwayland in their PATH still get their custom Xwayland.
- Users that don't have Xwayland installed system-wide but have it
somewhere else in PATH are left out. But this is pretty niche,
and they can just set WLR_XWAYLAND.
[1]: https://github.com/swaywm/wlroots/pull/2314
Check that the pkg-config file is available. This will be required
in the future to check whether xwayland supports features such as
-listenfd, -initfd or -verbose.
If there's no pkg-config file, check that the Xwayland executable
is available.
This effectively makes our relationship with xwayland closer to what
a dynamic library is: checked at build-time, but can be overridden
at run-time.
