If multiple consecutive transaction timeouts occur it is possible for
the SSD borders to become temporarily desynchronized with the size of
the rendered surface.
This is especially noticeable during interactive resize of mpv.
For details on cause/fix, see the new comment in the code.
This fixes a possible assertion failure in Cursor.updateState() when
trying to start move/resize of a xdg toplevel with the timed_out or
timed_out_acked configure_state.
This also generally improves the UX of transaction timeouts as all
state except for the size change is now applied immediately.
There is not any pointer emulation for tablet tool input. This means
that only clients implementing the tablet-v2 protocol will be able to
process tablet tool input.
Tablet pad support is TODO
This assertion does not consider that a view may be visible on an output
despite no view on that output having focus due to a differnt output
currently having focus.
I don't see any clean way to fix the assert, so just remove it.
The current value of 200ms is too long and makes river feel very slow
when it it hit due to an application being very slow/frozen.
The new timeout of 50ms seems to be rarely hit in practice even on
slower hardware such as my old Thinkpad x220. When it is hit the system
feels much more responsive than when the 200ms timeout is hitdespite the
guilty application window potentially being visible in the wrong
location/size a bit longer.
It seems like the wlr_scene implementation of sending per-surface
feedback is a bit too spammy and can lead to resource exhaustion in
clients in at least some reported cases.
Outputs using the wlr_output_layout auto-layout feature may have their
coordinates update any time an output is added/removed to the layout or
the position of another output in the layout is set.
River currently doesn't keep the scene node coordinates of such outputs
in sync with their position in the output layout, which leads to bugs
with e.g. the cursor not working properly for such outputs.
Currently we update output-management clients based on changes in the
wlr_output_layout struct. However, this is obviously wrong on closer
inspection due to the fact that not all outputs are tracked by the
wlr_output_layout at all times. I think this aproach was originally
cargo-culted from some other output-management implementation and it
needs to go.
Luckily, the solution is quite simple since the only way to configure
outputs using river is through the wlr-output-management protocol. This
means we need to send a new configuration to the output-management
client in 3 cases:
1. An output is created
2. An output is destroyed
3. A wlr-output-management config from a client is applied
Unfortunately, clients in the wild sometimes get the
configure/ack_configure/commit sequence wrong, committing the configured
surface with a size different than the one they ack'd only to later in
separate commit adpat the surface size to that requested by the
compositor.
Improve river's handling of such buggy clients to keep river's ssd
borders and internal state consistent with whatever the clients actually
commit regardless of the correctness of the clients. Log a shame message
for such clients to make me feel better about working around their bugs.
If a view that is currently being destroyed is matched by a newly added
rule river crashes due to an assertion failure.
Fix this and add another assertion to make this precondition more
visible to the users of RuleList.match().
If there is a transaction inflight when an output is disabled then we
must call View.commitTransaction() for any views evacuated from the
disabled output to ensure transaction state remains consistent.
Root.commitTransaction() will not call View.commitTransaction()
for these evacuated views as their output is no longer around.
If a new transaction is started that calls configure() on an xdg
toplevel with a timed_out/timed_out_acked configure_state we currently
leave the configure_state untouched if no new configure is needed.
This can cause an assertion failure in View.commitTransaction() if the
xdg toplevel still hasn't acked/committed by the time the new
transaction completes.
To fix this, update the configure_state as necessary.
All of these API calls checking if the device supports a given option
and checking if the value would be changed are effectively useless.
A quick peek inside the libinput source code shows us that all of these
"setter" functions validate their arguments and return an error if they
are invalid.
Since we don't do anything with the information of whether or not a
config option has been changed or if a config option is even supported
for a given device, all these apply() functions can be simplified to a
single libinput function call.
