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Now the role precommit hook is called before the commit, not on
wl_surface.commit request, and takes a state which is to be applied.
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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
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Instead, use wlr_surface_state.buffer only.
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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);
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This is use for startup notifications per startup-notifiation spec
https://specifications.freedesktop.org/startup-notification-spec/startup-notification-latest.txt
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Allocate window arrays for list property updates on the heap instead.
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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.
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We already get the PID from XRes and _NET_WM_PID code can overwrite it
with incorrect data.
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`_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.
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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.
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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.
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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
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Otherwise it gets leaked never to be recovered.
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Previously, the clipboard and primary selections shared the same window.
This was racey, and could have led to pasting failures.
On xfixes selection owner change notification, the logic for requesting
the supported mimetypes of the new owner's selection looks like:
xcb_convert_selection(
xwm->xcb_conn,
selection->window,
selection->atom,
xwm->atoms[TARGETS],
xwm->atoms[WL_SELECTION],
selection->timestamp
);
This means ask the selection owner to write its TARGETS for the
`selection->atom` selection (one of PRIMARY, CLIPBOARD, DND_SELECTION)
to `selection->window`'s WL_SELECTION atom.
However, `selection->window` is shared for both PRIMARY and CLIPBOARD
selections, and WL_SELECTION is used as the target atom in both cases.
So, there's a race when both selections change at the same time.
The CLIPBOARD selection might support mimetypes {A, B, C}, and the
PRIMARY only {A, B}. If the ConvertSelection requests/responses "cross
on the wire", so to speak, wlroots can end up believing that the PRIMARY
selection also supports C.
A Wayland client may then ask for the PRIMARY selection in C format,
which will fail with "convert selection failed".
This commit fixes this by using a separate window for PRIMARY and
CLIPBOARD target requests, so that WL_SELECTION can be used as the
target atom in both cases.
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This makes it consistent with xwm_selection_finish.
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Previously it took a wlr_xwm *, which was a bit surprising in that it
freed members of wlr_xwm *, not just its respective selections.
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wlroots would log "Unhandled NET_WM_STATE property change" log
messages for atoms we know about. Simplify the code structure
and remove these extra messages.
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In certain situations windows can have their input field set to false
but still expect to receive input focus by passively listening to key
presses via a parent window. The ICCCM specification outlines how focus
should be given to clients.
Further reading: https://tronche.com/gui/x/icccm/sec-4.html#s-4.1.7
Relates to #2604
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Developers can use x11trace or similar to analyze the protocol messages.
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The compiler is smarter at figuring out whether a function should be
inlined or not.
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This is necessary to react to changes in position of override-redirect
views.
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Implement a simple loop detection while trying to retrieve the parent
for a TRANSIENT_FOR window.
Fixes swaywm/sway#4624
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Certain clients require this property to be set for expected behavior.
Most notably, steam client CSD maximize button no longer worked
after unmaximizing once, unless the state was changed by another
method. The state is unset whenever another surface gains focus.
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This avoids uninitialized items and makes it clear where the magic
number 2 is coming from.
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This helps mitigate buffer overflows.
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In case wl_event_loop_add_timer errors out, don't insert the free'd
wlr_xwayland_surface in the list.
Closes: https://github.com/swaywm/wlroots/issues/1721
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This improves the failure cases when incremental transfers fail to
complete successfully for one reason or another.
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If Xwayland is restarted, the ready handler assumes there is no xwm instance.
This means all of xwm was leaked on Xwayland restart. This caused compositors
to consume all cpu resources, where time is spent dispatching. Now we destroy
xwm if we get an event mask containing WL_EVENT_HANGUP or WL_EVENT_ERROR.
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This fixes issues with (at least) dialogs in Jetbrains IDEs becoming
unclickable if they ever lost focus (ref. swaywm/sway#5373). Prior to
this change, since `xwm->focus_surface` would be set prior to
`xwm_surface_activate` being called, the latter would short-circuit
immediately and not notify the application of the focus change.
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Split the server part of wlr_xwayland into wlr_xwayland_server. This
allows compositors to implement their own XWM when wlroots' isn't a good
fit.
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Previously, some atoms had a leading underscore, others didn't. Be more
consistent and never use a leading underscore (symbols with a leading
underscore followed by an upper-case letter are reserved).
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It's very easy to break the mapping between the atom_name enum and the
atom_map array. Use explicit indexes to prevent issues.
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This reflects what i3 does [1].
[1]: https://github.com/i3/i3/blob/b3faf9fca9254679a4715486a4de80ebaee70410/src/handlers.c#L1076
Fixes: c067fbc010da ("xwm: allow applications to change focus between their own surfaces")
Closes: https://github.com/swaywm/sway/issues/4926
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Although currently this problem is present in only Steam, and it is
actually a client bug.
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Without this information, compositors have no way to tell whether
or not to consider the position information valid. Most notably,
a compositor needs to know if it should pick a position for the
surface or use the position sent in the configure request.
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This is what ICCCM states that a WM should do.
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This commit makes sure surface->mapped is true when the unmapped event is
emitted. This is necessary because listeners can only damage surfaces that are
mapped. This is similar to the fact that the destroy event is emitted before
any destruction is actually made.
Fixes https://github.com/swaywm/sway/issues/3568
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