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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Debug.h>
#include <Kernel/API/MousePacket.h>
#include <LibCore/LocalSocket.h>
#include <LibCore/Object.h>
#include <WindowServer/ClientConnection.h>
#include <WindowServer/Cursor.h>
#include <WindowServer/Event.h>
#include <WindowServer/EventLoop.h>
#include <WindowServer/Screen.h>
#include <WindowServer/WMClientConnection.h>
#include <WindowServer/WindowManager.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
namespace WindowServer {
EventLoop::EventLoop()
: m_window_server(Core::LocalServer::construct())
, m_wm_server(Core::LocalServer::construct())
{
m_keyboard_fd = open("/dev/keyboard0", O_RDONLY | O_NONBLOCK | O_CLOEXEC);
m_mouse_fd = open("/dev/mouse0", O_RDONLY | O_NONBLOCK | O_CLOEXEC);
bool ok = m_window_server->take_over_from_system_server("/tmp/portal/window");
VERIFY(ok);
ok = m_wm_server->take_over_from_system_server("/tmp/portal/wm");
VERIFY(ok);
m_window_server->on_ready_to_accept = [this] {
auto client_socket = m_window_server->accept();
if (!client_socket) {
dbgln("WindowServer: accept failed.");
return;
}
static int s_next_client_id = 0;
int client_id = ++s_next_client_id;
IPC::new_client_connection<ClientConnection>(client_socket.release_nonnull(), client_id);
};
m_wm_server->on_ready_to_accept = [this] {
auto client_socket = m_wm_server->accept();
if (!client_socket) {
dbgln("WindowServer: WM accept failed.");
return;
}
static int s_next_wm_id = 0;
int wm_id = ++s_next_wm_id;
IPC::new_client_connection<WMClientConnection>(client_socket.release_nonnull(), wm_id);
};
if (m_keyboard_fd >= 0) {
m_keyboard_notifier = Core::Notifier::construct(m_keyboard_fd, Core::Notifier::Read);
m_keyboard_notifier->on_ready_to_read = [this] { drain_keyboard(); };
} else {
dbgln("Couldn't open /dev/keyboard0");
}
if (m_mouse_fd >= 0) {
m_mouse_notifier = Core::Notifier::construct(m_mouse_fd, Core::Notifier::Read);
m_mouse_notifier->on_ready_to_read = [this] { drain_mouse(); };
} else {
dbgln("Couldn't open /dev/mouse0");
}
}
EventLoop::~EventLoop()
{
}
void EventLoop::drain_mouse()
{
auto& screen_input = ScreenInput::the();
MousePacket state;
state.buttons = screen_input.mouse_button_state();
unsigned buttons = state.buttons;
MousePacket packets[32];
ssize_t nread = read(m_mouse_fd, &packets, sizeof(packets));
if (nread < 0) {
perror("EventLoop::drain_mouse read");
return;
}
size_t npackets = nread / sizeof(MousePacket);
if (!npackets)
return;
for (size_t i = 0; i < npackets; ++i) {
auto& packet = packets[i];
dbgln_if(WSMESSAGELOOP_DEBUG, "EventLoop: Mouse X {}, Y {}, Z {}, relative={}", packet.x, packet.y, packet.z, packet.is_relative);
buttons = packet.buttons;
state.is_relative = packet.is_relative;
if (packet.is_relative) {
state.x += packet.x;
state.y -= packet.y;
state.z += packet.z;
} else {
state.x = packet.x;
state.y = packet.y;
state.z += packet.z;
}
if (buttons != state.buttons) {
state.buttons = buttons;
dbgln_if(WSMESSAGELOOP_DEBUG, "EventLoop: Mouse Button Event");
screen_input.on_receive_mouse_data(state);
if (state.is_relative) {
state.x = 0;
state.y = 0;
state.z = 0;
}
}
}
if (state.is_relative && (state.x || state.y || state.z))
screen_input.on_receive_mouse_data(state);
if (!state.is_relative)
screen_input.on_receive_mouse_data(state);
}
void EventLoop::drain_keyboard()
{
auto& screen_input = ScreenInput::the();
for (;;) {
::KeyEvent event;
ssize_t nread = read(m_keyboard_fd, (u8*)&event, sizeof(::KeyEvent));
if (nread == 0)
break;
VERIFY(nread == sizeof(::KeyEvent));
screen_input.on_receive_keyboard_data(event);
}
}
}
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