The main motivation behind this change is to prepare input abstractions
for virtual input devices so the wl_seat can properly advertise caps or
the cursor getting properly mapped/unmapped when a fake pointer is
added/removed on a system without a hardware mouse connected.
With this, there are three abstractions - InputDevice, InputBackend, and
InputRedirection.
An InputDevice represents an input device such as a mouse, a keyboard, a
tablet, etc. The InputBackend class notifies the InputRedirection about
(dis-)connected devices. The InputRedirection manages the input devices.
Such design allows to unify the event flow for real and virtual input
devices.
There can be several input backends active. For example, the libinput
backend and an input backend that provides virtual input devices, e.g.
libeis or org_kde_kwin_fake_input.
Do not access fields in DataSourceModel::m_data that are not available
0 0x00007f3445a4bd22 in raise () at /usr/lib/libc.so.6
1 0x00007f3445a3590e in abort () at /usr/lib/libc.so.6
2 0x00007f3446362bb1 in qt_message_fatal (message=<synthetic pointer>..., context=...) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/global/qlogging.cpp:1914
3 QMessageLogger::fatal(char const*, ...) const (this=this@entry=0x7fff288a4ff8, msg=msg@entry=0x7f3446663028 "ASSERT failure in %s: \"%s\", file %s, line %d") at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/global/qlogging.cpp:893
4 0x00007f344636203e in qt_assert_x(char const*, char const*, char const*, int) (where=<optimized out>, what=<optimized out>, file=<optimized out>, line=<optimized out>) at /home/apol/devel/frameworks/qt5/qtbase/src/corelib/global/qglobal.cpp:3366
5 0x00007f344973e118 in QVector<QByteArray>::at(int) const (this=0x55f42c20d338, i=7) at /home/apol/devel/kde5/include/QtCore/qvector.h:449
6 0x00007f34497305df in KWin::DataSourceModel::data(QModelIndex const&, int) const (this=0x55f42c20d320, index=..., role=6) at /home/apol/devel/frameworks/kwin/src/debug_console.cpp:1657
7 0x00007f3447674ed1 in QModelIndex::data(int) const (arole=6, this=0x7fff288a55c0) at ../../include/QtCore/../../../../../devel/frameworks/qt5/qtbase/src/corelib/itemmodels/qabstractitemmodel.h:460
Can be useful when investigating clipboard related problems, by checking
which source KWin thinks is the current clipboard. Displays clipboard and
primary selection.
The main motivation behind the split is to simplify client buffer code
and allow adding new features easier, for example referencing the shm
pool when a shm buffer is destroyed, or monitoring for readable linux
dmabuf file descriptors, etc.
Also, a referenced ClientBuffer cannot be destroyed, unlike the old
BufferInterface.
We'd always get "0x0: something" where the 0x0 is the xcb_window which
obviously doesn't translate.
Instead show the class name so we can easily track what kind of object
we are dealing with.
It's an easy way to show which shell it's using on Wayland, will be
useful in other cases as well.
Once in a while, we receive complaints from other fellow KDE developers
about the file organization of kwin. This change addresses some of those
complaints by moving all of source code in a separate directory, src/,
thus making the project structure more traditional. Things such as tests
are kept in their own toplevel directories.
This change may wreak havoc on merge requests that add new files to kwin,
but if a patch modifies an already existing file, git should be smart
enough to figure out that the file has been relocated.
We may potentially split the src/ directory further to make navigating
the source code easier, but hopefully this is good enough already.
