The xdg-output spec omits whether the compositor has to destroy all xdg-
output resources when the associated wl_output global is removed.
This means that no xdg-output resource should be destroyed unless the
client has called the destructor request; otherwise the client may panic
due to protocol errors.
Starting with Qt 5.15.2, it's okay to destroy generated wrapper objects
without destroying associated resources. Destructor requests will be
handled behind the scenes for inert and orphaned resources by code that
is generated by qtwaylandscanner.
BUG: 426293
If we track the commit counts at compositor global, this will fail
horribly for anything other than the first text-input-v3 client, as for
new client the serial count will not be what it expects in the done()
request and it will simply consider events as outdated and will refuse
to accept those events
s_version is used only to initialize a global so there is no point for
storing protocol version in a static member field and use funky syntax
in the cpp file to initialize it. This change also simplifies the code.
If a frame callback resource is destroyed, it will unregister itself
from corresponding lists in current, pending, and cached state.
However, this means that we need to be super duper careful when the
compositor wants to destroy all frame callbacks. We need to make a copy
of a frameCallbacks list; otherwise a call to removeOne() will
invalidate iterators and the compositor may crash.
Currently, that copy is made implicitly. Some people may see that code
and add qAsConst() without realizing the consequences it will lead to.
This change improves the readability of that code by making explicit
copies of frameCallbacks in code that shuts down SurfaceInterface.
This was done mostly because I wanted to get rid of the Resource
dependency in AbstractDataSource so I can make our xwl bridge direct,
but this also fixes up some issues with object lifespan present in the
previous version and keeps all our clipboard code in-line.
When the focusedTextInputSurfaceChanged() signal is emitted, it is
expected that SeatInterface::focusedTextInputSurface() will return
the new focused text input surface.
- Drop the v0 support, it is no longer used by anything
- Adapt the text-input related methods in seat interface to include
versioning, this will be useful for when zwp_text_input_v3 support is
included in kwayland-server
- Refactor SeatInterface to get rid of globalTextInput, it is no longer
needed with the new approach
- Refactor out the ContentHints and ContentPurpose enums in separate
header file which can be shared by zwp_text_input_v2/3 implementation
Co-Author: Bhushan Shah <bshah@kde.org>
One problem with delaying destruction of buffer objects is that the
compositor may create a shadow that references defunct buffers.
One way to fix that issue is to immediately destroy buffers. However,
there is other way to address the issue - keep released buffers alive.
If a buffer is kept alive by the client, then it will most likely be
used again. It also simplifies buffer management.
BUG: 425233
A DataOffer can slightly outlive a DataSource; a client will still be
told it's deleted but could call a method in a race.
DataOfferInterface correctly checks for source being still valid, but
nothing updates it when it gets deleted.
BUG: 396308
If the underlying wl_surface object has been removed, the input panel
surface will be still alive.
Unfortunately, in order to make the test pass, the input panel surface
interface must have a destructor request.
So, the code that tests the destruction of an input panel surface had
been removed.
Since the screencast protocol is unstable, the ScreencastInterface class
and the ScreencastStreamInterface class must carry version info in their
class names.
In v1 to v3 of textinput protocol, updates for the text input state
needs to be updated explcitly using commit or update state request, so
send out this information to compositor, which can use it to update the
input method state.
We need to convert the content hint and content purpose to the
protocol values before passing it to the input method since text-input
v0, v2 and v3 have a different values for some of enums. We need to do
manual translation.
Generated code typically cleans up resource objects when the client
calls the relevant destructor.
In multi-cast mode our wrapper can be deleted at any time, whilst a
client resource exists any existing resources that have a pending
message will then crash the compositor.
Deleting resources ahead of time also resolves this. calls to this
resource will no-op. The zxdg_output_v1::destroy_func will then be
called to delete the Resource object.
If a client attempts to create an input panel surface for a wl_surface
that already has a role assigned, we must post a protocol error or else
the behavior of the input panel surface will be undefined.
Posting an error of 0 is not really correct, but on the other hand the
spec has no any error enums.
This reverts commit 3cf004b68e.
Unfortunately, 3cf004b broke a couple of tests in kwin due to Qt not
emitting QAbstractEventDispatcher::aboutToBlock() signal when macros
such as QTRY_VERIFY() or QTRY_COMPARE() spin the event loop.
Frame callbacks only indicate when the client can start rendering a new
frame, it's not meant to be precise. If the client wants to do some
black magic with frame scheduling and so on, it needs to use a protocol
such as presentation_time. This change removes the pointless flush to
prevent over-flushing client connections.
We have a situation where some clients drop their old offer before
creating a new one. This means klipper tries to fill in the empty
clipboard at the same time the client posts its new real contents.
This adds in a flag (via a hidden mimetype) that klipper is trying to
replace a null clipboard. If this flag is set and our clipboard is not
null because the client has updated it in the meantime we ignore the
klipper update.
It's a workaround, rather than an ideal fix at a data level, but it
solves the problem in the interim.
CCBUG: 424855
