ladybird/WindowServer/WSClientConnection.cpp
Andreas Kling 596a5ce5a4 LibGUI+WindowServer: Add app-global keyboard shortcuts.
This patch adds a GShortcut class. Each GAction can have a GShortcut which
will cause the event loop to listen for that key combination app-globally
and activate the event in case it's pressed.

The shortcut will also be displayed when the action is added to a menu.

Use this to hook up Alt+Up with the "open parent directory" action in the
FileManager app. :^)
2019-03-02 10:10:06 +01:00

478 lines
16 KiB
C++

#include <WindowServer/WSClientConnection.h>
#include <WindowServer/WSMessageLoop.h>
#include <WindowServer/WSMenuBar.h>
#include <WindowServer/WSMenu.h>
#include <WindowServer/WSMenuItem.h>
#include <WindowServer/WSWindow.h>
#include <WindowServer/WSWindowManager.h>
#include <WindowServer/WSAPITypes.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <errno.h>
#include <stdio.h>
HashMap<int, WSClientConnection*>* s_connections;
void WSClientConnection::for_each_client(Function<void(WSClientConnection&)> callback)
{
if (!s_connections)
return;
for (auto& it : *s_connections) {
callback(*it.value);
}
}
WSClientConnection* WSClientConnection::from_client_id(int client_id)
{
if (!s_connections)
return nullptr;
auto it = s_connections->find(client_id);
if (it == s_connections->end())
return nullptr;
return (*it).value;
}
WSClientConnection::WSClientConnection(int fd)
: m_fd(fd)
{
static int s_next_client_id = 0;
m_client_id = ++s_next_client_id;
int rc = ioctl(m_fd, 413, (int)&m_pid);
ASSERT(rc == 0);
if (!s_connections)
s_connections = new HashMap<int, WSClientConnection*>;
s_connections->set(m_client_id, this);
WSAPI_ServerMessage message;
message.type = WSAPI_ServerMessage::Type::Greeting;
message.greeting.server_pid = getpid();
post_message(message);
}
WSClientConnection::~WSClientConnection()
{
s_connections->remove(m_client_id);
int rc = close(m_fd);
ASSERT(rc == 0);
}
void WSClientConnection::post_error(const String& error_message)
{
dbgprintf("WSClientConnection::post_error: client_id=%d: %s\n", m_client_id, error_message.characters());
WSAPI_ServerMessage message;
message.type = WSAPI_ServerMessage::Type::Error;
ASSERT(error_message.length() < (ssize_t)sizeof(message.text));
strcpy(message.text, error_message.characters());
message.text_length = error_message.length();
post_message(message);
}
void WSClientConnection::post_message(const WSAPI_ServerMessage& message)
{
int nwritten = write(m_fd, &message, sizeof(message));
if (nwritten < 0) {
if (errno == EPIPE) {
dbgprintf("WSClientConnection::post_message: Disconnected from peer.\n");
return;
}
perror("WSClientConnection::post_message write");
ASSERT_NOT_REACHED();
}
ASSERT(nwritten == sizeof(message));
}
RetainPtr<GraphicsBitmap> WSClientConnection::create_shared_bitmap(GraphicsBitmap::Format format, const Size& size)
{
RGBA32* buffer;
int shared_buffer_id = create_shared_buffer(m_pid, size.area() * sizeof(RGBA32), (void**)&buffer);
ASSERT(shared_buffer_id >= 0);
ASSERT(buffer);
ASSERT(buffer != (void*)-1);
return GraphicsBitmap::create_with_shared_buffer(format, shared_buffer_id, size, buffer);
}
void WSClientConnection::on_message(WSMessage& message)
{
if (message.is_client_request()) {
on_request(static_cast<WSAPIClientRequest&>(message));
return;
}
if (message.type() == WSMessage::WM_ClientDisconnected) {
int client_id = static_cast<WSClientDisconnectedNotification&>(message).client_id();
dbgprintf("WSClientConnection: Client disconnected: %d\n", client_id);
delete this;
return;
}
}
void WSClientConnection::handle_request(WSAPICreateMenubarRequest&)
{
int menubar_id = m_next_menubar_id++;
auto menubar = make<WSMenuBar>(*this, menubar_id);
m_menubars.set(menubar_id, move(menubar));
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidCreateMenubar;
response.menu.menubar_id = menubar_id;
post_message(response);
}
void WSClientConnection::handle_request(WSAPIDestroyMenubarRequest& request)
{
int menubar_id = request.menubar_id();
auto it = m_menubars.find(menubar_id);
if (it == m_menubars.end()) {
post_error("Bad menubar ID");
return;
}
auto& menubar = *(*it).value;
WSWindowManager::the().close_menubar(menubar);
m_menubars.remove(it);
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidDestroyMenubar;
response.menu.menubar_id = menubar_id;
post_message(response);
}
void WSClientConnection::handle_request(WSAPICreateMenuRequest& request)
{
int menu_id = m_next_menu_id++;
auto menu = make<WSMenu>(this, menu_id, request.text());
m_menus.set(menu_id, move(menu));
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidCreateMenu;
response.menu.menu_id = menu_id;
post_message(response);
}
void WSClientConnection::handle_request(WSAPIDestroyMenuRequest& request)
{
int menu_id = static_cast<WSAPIDestroyMenuRequest&>(request).menu_id();
auto it = m_menus.find(menu_id);
if (it == m_menus.end()) {
post_error("Bad menu ID");
return;
}
auto& menu = *(*it).value;
WSWindowManager::the().close_menu(menu);
m_menus.remove(it);
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidDestroyMenu;
response.menu.menu_id = menu_id;
post_message(response);
}
void WSClientConnection::handle_request(WSAPISetApplicationMenubarRequest& request)
{
int menubar_id = request.menubar_id();
auto it = m_menubars.find(menubar_id);
if (it == m_menubars.end()) {
post_error("Bad menubar ID");
return;
}
auto& menubar = *(*it).value;
m_app_menubar = menubar.make_weak_ptr();
WSWindowManager::the().notify_client_changed_app_menubar(*this);
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidSetApplicationMenubar;
response.menu.menubar_id = menubar_id;
post_message(response);
}
void WSClientConnection::handle_request(WSAPIAddMenuToMenubarRequest& request)
{
int menubar_id = request.menubar_id();
int menu_id = request.menu_id();
auto it = m_menubars.find(menubar_id);
auto jt = m_menus.find(menu_id);
if (it == m_menubars.end()) {
post_error("Bad menubar ID");
return;
}
if (jt == m_menus.end()) {
post_error("Bad menu ID");
return;
}
auto& menubar = *(*it).value;
auto& menu = *(*jt).value;
menubar.add_menu(&menu);
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidAddMenuToMenubar;
response.menu.menubar_id = menubar_id;
response.menu.menu_id = menu_id;
post_message(response);
}
void WSClientConnection::handle_request(WSAPIAddMenuItemRequest& request)
{
int menu_id = request.menu_id();
unsigned identifier = request.identifier();
auto it = m_menus.find(menu_id);
if (it == m_menus.end()) {
post_error("Bad menu ID");
return;
}
auto& menu = *(*it).value;
menu.add_item(make<WSMenuItem>(identifier, request.text(), request.shortcut_text()));
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidAddMenuItem;
response.menu.menu_id = menu_id;
response.menu.identifier = identifier;
post_message(response);
}
void WSClientConnection::handle_request(WSAPIAddMenuSeparatorRequest& request)
{
int menu_id = request.menu_id();
auto it = m_menus.find(menu_id);
if (it == m_menus.end()) {
post_error("Bad menu ID");
return;
}
auto& menu = *(*it).value;
menu.add_item(make<WSMenuItem>(WSMenuItem::Separator));
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidAddMenuSeparator;
response.menu.menu_id = menu_id;
post_message(response);
}
void WSClientConnection::handle_request(WSAPISetWindowOpacityRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
window.set_opacity(request.opacity());
}
void WSClientConnection::handle_request(WSAPISetWindowTitleRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
window.set_title(request.title());
}
void WSClientConnection::handle_request(WSAPIGetWindowTitleRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidGetWindowTitle;
response.window_id = window.window_id();
ASSERT(window.title().length() < (ssize_t)sizeof(response.text));
strcpy(response.text, window.title().characters());
response.text_length = window.title().length();
post_message(response);
}
void WSClientConnection::handle_request(WSAPISetWindowRectRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
window.set_rect(request.rect());
}
void WSClientConnection::handle_request(WSAPIGetWindowRectRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidGetWindowRect;
response.window_id = window.window_id();
response.window.rect = window.rect();
post_message(response);
}
void WSClientConnection::handle_request(WSAPICreateWindowRequest& request)
{
int window_id = m_next_window_id++;
auto window = make<WSWindow>(*this, window_id);
window->set_has_alpha_channel(request.has_alpha_channel());
window->set_title(request.title());
window->set_rect(request.rect());
window->set_opacity(request.opacity());
window->set_size_increment(request.size_increment());
window->set_base_size(request.base_size());
m_windows.set(window_id, move(window));
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidCreateWindow;
response.window_id = window_id;
post_message(response);
}
void WSClientConnection::handle_request(WSAPIDestroyWindowRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
WSWindowManager::the().invalidate(window);
m_windows.remove(it);
}
void WSClientConnection::handle_request(WSAPIInvalidateRectRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::Paint;
response.window_id = window_id;
response.paint.rect = request.rect();
response.paint.window_size = window.size();
post_message(response);
}
void WSClientConnection::handle_request(WSAPIDidFinishPaintingNotification& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
if (!window.has_painted_since_last_resize()) {
if (window.last_lazy_resize_rect().size() == request.rect().size()) {
window.set_has_painted_since_last_resize(true);
WSMessageLoop::the().post_message(window, make<WSResizeEvent>(window.last_lazy_resize_rect(), window.rect()));
}
}
WSWindowManager::the().invalidate(window, request.rect());
}
void WSClientConnection::handle_request(WSAPIGetWindowBackingStoreRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
auto* backing_store = window.backing_store();
WSAPI_ServerMessage response;
response.type = WSAPI_ServerMessage::Type::DidGetWindowBackingStore;
response.window_id = window_id;
response.backing.bpp = sizeof(RGBA32);
response.backing.pitch = backing_store->pitch();
response.backing.size = backing_store->size();
response.backing.has_alpha_channel = backing_store->has_alpha_channel();
response.backing.shared_buffer_id = backing_store->shared_buffer_id();
post_message(response);
}
void WSClientConnection::handle_request(WSAPISetWindowBackingStoreRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
auto backing_store = GraphicsBitmap::create_with_shared_buffer(
request.has_alpha_channel() ? GraphicsBitmap::Format::RGBA32 : GraphicsBitmap::Format::RGB32,
request.shared_buffer_id(),
request.size());
if (!backing_store)
return;
window.set_backing_store(move(backing_store));
window.invalidate();
}
void WSClientConnection::handle_request(WSAPISetGlobalCursorTrackingRequest& request)
{
int window_id = request.window_id();
auto it = m_windows.find(window_id);
if (it == m_windows.end()) {
post_error("Bad window ID");
return;
}
auto& window = *(*it).value;
window.set_global_cursor_tracking_enabled(request.value());
}
void WSClientConnection::on_request(WSAPIClientRequest& request)
{
switch (request.type()) {
case WSMessage::APICreateMenubarRequest:
return handle_request(static_cast<WSAPICreateMenubarRequest&>(request));
case WSMessage::APIDestroyMenubarRequest:
return handle_request(static_cast<WSAPIDestroyMenubarRequest&>(request));
case WSMessage::APICreateMenuRequest:
return handle_request(static_cast<WSAPICreateMenuRequest&>(request));
case WSMessage::APIDestroyMenuRequest:
return handle_request(static_cast<WSAPIDestroyMenuRequest&>(request));
case WSMessage::APISetApplicationMenubarRequest:
return handle_request(static_cast<WSAPISetApplicationMenubarRequest&>(request));
case WSMessage::APIAddMenuToMenubarRequest:
return handle_request(static_cast<WSAPIAddMenuToMenubarRequest&>(request));
case WSMessage::APIAddMenuItemRequest:
return handle_request(static_cast<WSAPIAddMenuItemRequest&>(request));
case WSMessage::APIAddMenuSeparatorRequest:
return handle_request(static_cast<WSAPIAddMenuSeparatorRequest&>(request));
case WSMessage::APISetWindowTitleRequest:
return handle_request(static_cast<WSAPISetWindowTitleRequest&>(request));
case WSMessage::APIGetWindowTitleRequest:
return handle_request(static_cast<WSAPIGetWindowTitleRequest&>(request));
case WSMessage::APISetWindowRectRequest:
return handle_request(static_cast<WSAPISetWindowRectRequest&>(request));
case WSMessage::APIGetWindowRectRequest:
return handle_request(static_cast<WSAPIGetWindowRectRequest&>(request));
case WSMessage::APICreateWindowRequest:
return handle_request(static_cast<WSAPICreateWindowRequest&>(request));
case WSMessage::APIDestroyWindowRequest:
return handle_request(static_cast<WSAPIDestroyWindowRequest&>(request));
case WSMessage::APIInvalidateRectRequest:
return handle_request(static_cast<WSAPIInvalidateRectRequest&>(request));
case WSMessage::APIDidFinishPaintingNotification:
return handle_request(static_cast<WSAPIDidFinishPaintingNotification&>(request));
case WSMessage::APIGetWindowBackingStoreRequest:
return handle_request(static_cast<WSAPIGetWindowBackingStoreRequest&>(request));
case WSMessage::APISetGlobalCursorTrackingRequest:
return handle_request(static_cast<WSAPISetGlobalCursorTrackingRequest&>(request));
case WSMessage::APISetWindowOpacityRequest:
return handle_request(static_cast<WSAPISetWindowOpacityRequest&>(request));
case WSMessage::APISetWindowBackingStoreRequest:
return handle_request(static_cast<WSAPISetWindowBackingStoreRequest&>(request));
default:
break;
}
}