This implements the wl_keyboard client-side of the wayland protocol and
takes care of pushing keyboard events to the correct window.
A new callback is added to all widgets which is called when keyboard input
is sent to the specific window.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Use the font subsystem to blit the console glyphs to the wlterm window
during redraw-callbacks.
This is mostly copied from src/terminal.c and the blitting functions from
uterm-fbdev.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We need the text-font modules to render fonts in wlterm. Therefore, load
all the font modules during startup before initializing the application.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
wlterm needs xkbcommon as the wayland protocol depends on XKB states.
Hence, we add a hard-dependency for wlterm.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of doing all this in main() we now use the two helpers. This makes
the code much more readable and avoids too many stuff in main().
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We want to use the font-rendering layer in wlterm so we need to split this
out. Gladly, the layer has only a build-time dependency on uterm and not
other hard-coded stuff. That is, we have no cleanup to do.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Create TSM screens and VTE objects plus a PTY and connect everything so we
have a working terminal. Keyboard input still needs to be hooked up and
the drawing functions aren't implemented, yet.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This helper allows widgets to retrieve the eloop that is used by the
window. Otherwise, we couldn't dispatch events there.
No refcounting is needed as all widgets are destroyed before the window is
destroyed. Other users need to perform ref-counting by themself.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This makes the pty layer independent of kmscon global state. This allows
us to use it in other applications bundled with kmscon. There is still
some work to do to make it fully independent so we can integrate it into
TSM. But that's not really needed, yet.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of accessing global state, we now set the TERM value via a helper
function. This is needed to make the pty layer independent of kmscon.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Sorry for the big commit, but I was working on the wlterm application and
then thought I can rework the whole configure-logic again. This mainly
renames all build-defines to BUILD_DEFINE_* and BUILD_HAVE_* and allows
specifying which applications to build via --enable-kmscon/--enable-wlterm
and similar.
wlterm is a new application which is a native wayland client with no
external dependencies. It serves several purposes:
* It uses TSM (not yet implemented, but will come soon) to create a
console independent from kmscon. This shows how TSM can easily be used
to create independent terminal emulators.
* It is a native wayland application (probably the first independent
wayland app so far?) and is used to test how well the wayland API
works. As wayland is still under heavy development, we need more
application-writers who report back whether the wayland-API makes
sense to them and whether it works correctly.
* A proper terminal-emulator for wayland! There is currently no proper
emulator so we really need something that we can work with.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We move the GRAB type into kmscon-main.c to avoid any uterm dependency in
the conf subsystem. It is still open how we can better handle the
key-parser without a valid uterm_input object, but when there will be a
xkbcommon release, we can hopefully add a hard depedency to it.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Now that we can differentiate between fbdev-DRM and normal fbdev devices,
we can just pick up the normal fbdev devices by default.
--fbdev now makes kmscon use the FBDEV_DRM devices instead of pure DRM.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Most DRM drivers also provide a legacy fbdev device so fbcon can pick it
up (and more importantly, we get kernel panics on it). However, as an
application developer, I don't want to use two devices which drive the
same physical hardware.
This marks all such DRM fbdev devices as FBDEV_DRM so kmscon doesn't pick
them up automatically.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
When multiple requests are pushed into the video backends at once, we
should ignore NULL buffers. Otherwise, users might have to re-order
buffers just so we don't segfault. Instead, we now ignore them and the
application can set requests to NULL to signal us that it is unused.
This fixes some bugs with multi-monitor setups and kmscon.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Kernel fbdev drivers are really broken in respect to virtual framebuffer
sizes. They all report success when allocating and even mmap()'ing them
but memory access will result in SIGBUS or even SIGSEGV.
Therefore, we disable it by default now. We might consider re-enabling it,
but there is really no need to work too much on fbdev backends.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We sometimes need to test what keys a client receives when specific keys
are pressed. This small helper simply runs in a terminal and receives raw
keyboard input and prints it to stdout with debugging information.
This can definitely be improved with the help of the TSM state-machine to
print more useful information and directly parse the input. However, this
is better than nothing.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Some crazy guy decided to set VERASE to DEL by default in the kernel. So
when starting an application which does not initialize the terminal on
startup, they may not notice that we actually send BACKSPACE as
erase-character (like /bin/login). Therefore, initialize VERASE to 010 so
everyone is happy.
Thanks to Etam for reporting this!
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Nearly all terminals behave differently regarding Shift+FX keys. We now
mimic the behavior of the classic VT220 instead of the new-style function
keys. Nearly all applications expect the old codes.
This might be changed in the future, though. It does make much more sense
to send the new codes as they provide more information to the application.
And remappings should be done via XKB instead of inside of kmscon.
However, as long as xkbcommon does not have a config-file, we will be
stuck with this little hack.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This is a very basic unit that can start kmscon with a login shell. We may
have to improve it to replace agetty/etc fully, but it is a good start.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We now create an eloop object internally to avoid requiring public eloop
headers. Functionality is still the same but now hidden in the library.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We do not want to depend on uterm just for the modifiers so introduce new
modifier-names which are in-sync with the UTERM names.
Inside of kmscon we still use the UTERM names everywhere, but inside of
TSM we now rely on the new names.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of accessing kmscon-state we now add a helper to select the
palette and make the terminal-subsystem use it on initialization.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This pushes the whole VTE layer into TSM and performs the huge rename
which turned out to be quite easy to accomplish.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Use the new timer_drain() helper to reset the timer after waking up.
Otherwise, we get spurious warnings that the CPU is too slow.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This helper reads the current expiration-count from a timer. This can be
used when waking up from an idle-period or similar to reset the timer.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We already have an llog context so use it instead of relying on kmscon-log
subsystem. TSM-screen is now fully independent. Next step is TSM-vte.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of accessing kmscon state from TSM, we now introduce options to
control the behavior of TSM-screens. Apart from logging, TSM is now
independent of any kmscon state/code.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Allow setting global options for screen objects. These are different from
flags as the latter affects the state-machine but options affect global
operation modes.
Options should be set by the application while flags are set by the VTE
handler. The latter might change often, while options should be set on
startup and then remain mainly constant.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
uterm-keysyms.h is no longer available but the makefile still references
it. Remove all occurrences of it to fix build again.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We need to avoid logging to stderr directly in TSM so introduce the
tsm_log_t object similar to eloop.h.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
All TSM files use the "tsm_*" prefix and the object is now named "screen"
so rename the files to resemble this.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This is part of the TSM library creation. We also rename "console" to
"screen" as this layer actually manages the screen.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This is no longer used. You should first retrieve the UCS4 string and then
use the UCS4 to U8 conversion helpers instead.
All users have already been converted so we can remove this helper safely.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of converting symbols into UCS4 string in each backend, we now
pass the whole data from the console layer into the renderers.
This makes all renderers indepedent of any recently introduced
symbol-tables and they can be implemented inside of TSM without exporting
them. However, we still need to pass the IDs to the text layer. The text
layer must not use them for anything but identification. Moreover, it must
never assume that they are valid tsm_symbol_t values.
We do this so the backends can still have fast hashtable lookups rather
than allocating big keys containing the UCS4 string+length and using these
for lookups.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This small helper allocates a string big enough to hold the whole u8
string. This should be used for short and temporary strings only! It
allocates way to much memory for bigger or long-living strings.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We really need xkbcommon-keysyms.h for building kmscon/uterm/TSM/etc.
However, the recent fix was ugly and didn't really help. Instead we copy
the keysyms file into external/xkbcommon/ so we can just include the real
xkbcommon files from any source but have a fallback in external/.
Hence, you can still build kmscon without xkbcommon with this fallback,
but this will be removed the first day when xkbcommon sees a public
release.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We never checked the memory helpers for errors because they used to be
from glib. However, with our own helpers we need to check for errors to be
sure.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This adds a helper that removes entries from a hashtable. This hasn't been
needed, yet, so we never provided it. However, the new unicode-helpers
will need it for proper error recovery.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Add three helpers to create and manage symbol-tables. Also fix internal
default-table to use them.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
