c4bb3d11fc
Libinput is an optional dependency for getting low level input events. As opening the input devices requires root privs this is rather pointless in the current state. But there is a small added test app which can be executed with root privs to demonstrate the functionality. To properly get input events we need a wrapper like it's used in weston. So far the following is setup: * opening devices found by udev * forwarding keyboard events to InputRedirection * forwarding pointer button events to InputRedirection * forwarding pointer axis events to InputRedirection * signals emitted for pointer motion events Pointer motion events need some further work as they are provided as delta events. We need to track that and map them properly. Also missing are touch events due to me not having a touch screen. It should be fairly simple to setup the touch events, though. Also hotplugging of devices is not yet implemented.
111 lines
2.4 KiB
C++
111 lines
2.4 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2014 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "context.h"
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#include "events.h"
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#include <libudev.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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namespace KWin
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{
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namespace LibInput
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{
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Udev::Udev()
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: m_udev(udev_new())
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{
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}
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Udev::~Udev()
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{
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if (m_udev) {
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udev_unref(m_udev);
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}
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}
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Context::Context(const Udev &udev)
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: m_libinput(libinput_udev_create_context(&Context::s_interface, this, udev))
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{
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libinput_log_set_priority(m_libinput, LIBINPUT_LOG_PRIORITY_DEBUG);
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}
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Context::~Context()
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{
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if (m_libinput) {
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libinput_unref(m_libinput);
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}
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}
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bool Context::assignSeat(const char *seat)
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{
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if (!isValid()) {
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return false;
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}
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return libinput_udev_assign_seat(m_libinput, seat) == 0;
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}
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int Context::fileDescriptor()
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{
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if (!isValid()) {
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return 0;
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}
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return libinput_get_fd(m_libinput);
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}
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void Context::dispatch()
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{
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libinput_dispatch(m_libinput);
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}
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const struct libinput_interface Context::s_interface = {
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Context::openRestrictedCallback,
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Context::closeRestrictedCallBack
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};
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int Context::openRestrictedCallback(const char *path, int flags, void *user_data)
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{
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return ((Context*)user_data)->openRestricted(path, flags);
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}
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void Context::closeRestrictedCallBack(int fd, void *user_data)
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{
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((Context*)user_data)->closeRestricted(fd);
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}
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int Context::openRestricted(const char *path, int flags)
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{
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int fd = open(path, flags);
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return fd < 0 ? -errno : fd;
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}
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void Context::closeRestricted(int fd)
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{
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close(fd);
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}
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Event *Context::event()
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{
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return Event::create(libinput_get_event(m_libinput));
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}
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}
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}
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