ladybird/Servers/WindowServer/WSEventLoop.cpp
Andreas Kling 4a37bec27c LibIPC: Rename base classes to IClientConnection and IServerConnection
This matches what we're already calling the server-side subclasses
better, though we'll probably want to find some better names for the
client-side classes eventually.
2019-12-02 11:11:05 +01:00

106 lines
2.9 KiB
C++

#include "WSClipboard.h"
#include <Kernel/KeyCode.h>
#include <Kernel/MousePacket.h>
#include <LibCore/CLocalSocket.h>
#include <LibCore/CObject.h>
#include <WindowServer/WSClientConnection.h>
#include <WindowServer/WSCursor.h>
#include <WindowServer/WSEvent.h>
#include <WindowServer/WSEventLoop.h>
#include <WindowServer/WSScreen.h>
#include <WindowServer/WSWindowManager.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>
//#define WSMESSAGELOOP_DEBUG
WSEventLoop::WSEventLoop()
: m_server(CLocalServer::construct())
{
m_keyboard_fd = open("/dev/keyboard", O_RDONLY | O_NONBLOCK | O_CLOEXEC);
m_mouse_fd = open("/dev/psaux", O_RDONLY | O_NONBLOCK | O_CLOEXEC);
bool ok = m_server->take_over_from_system_server();
ASSERT(ok);
m_server->on_ready_to_accept = [this] {
auto client_socket = m_server->accept();
if (!client_socket) {
dbg() << "WindowServer: accept failed.";
return;
}
static int s_next_client_id = 0;
int client_id = ++s_next_client_id;
new_client_connection<WSClientConnection>(*client_socket, client_id);
};
ASSERT(m_keyboard_fd >= 0);
ASSERT(m_mouse_fd >= 0);
m_keyboard_notifier = CNotifier::construct(m_keyboard_fd, CNotifier::Read);
m_keyboard_notifier->on_ready_to_read = [this] { drain_keyboard(); };
m_mouse_notifier = CNotifier::construct(m_mouse_fd, CNotifier::Read);
m_mouse_notifier->on_ready_to_read = [this] { drain_mouse(); };
WSClipboard::the().on_content_change = [&] {
WSClientConnection::for_each_client([&](auto& client) {
client.notify_about_clipboard_contents_changed();
});
};
}
WSEventLoop::~WSEventLoop()
{
}
void WSEventLoop::drain_mouse()
{
auto& screen = WSScreen::the();
unsigned prev_buttons = screen.mouse_button_state();
int dx = 0;
int dy = 0;
int dz = 0;
unsigned buttons = prev_buttons;
for (;;) {
MousePacket packet;
ssize_t nread = read(m_mouse_fd, &packet, sizeof(MousePacket));
if (nread == 0)
break;
ASSERT(nread == sizeof(packet));
buttons = packet.buttons;
dx += packet.dx;
dy += -packet.dy;
dz += packet.dz;
if (buttons != prev_buttons) {
screen.on_receive_mouse_data(dx, dy, dz, buttons);
dx = 0;
dy = 0;
dz = 0;
prev_buttons = buttons;
}
}
if (dx || dy || dz)
screen.on_receive_mouse_data(dx, dy, dz, buttons);
}
void WSEventLoop::drain_keyboard()
{
auto& screen = WSScreen::the();
for (;;) {
KeyEvent event;
ssize_t nread = read(m_keyboard_fd, (u8*)&event, sizeof(KeyEvent));
if (nread == 0)
break;
ASSERT(nread == sizeof(KeyEvent));
screen.on_receive_keyboard_data(event);
}
}