mirror of
https://github.com/LadybirdBrowser/ladybird.git
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a22774ee3f
I originally thought I would do this inside WindowServer, but let's try to make it as a standalone app that communicates with WindowServer instead. That will allow us to use LibGUI. :^)
588 lines
21 KiB
C++
588 lines
21 KiB
C++
#include <WindowServer/WSClientConnection.h>
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#include <WindowServer/WSMessageLoop.h>
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#include <WindowServer/WSMenuBar.h>
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#include <WindowServer/WSMenu.h>
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#include <WindowServer/WSMenuItem.h>
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#include <WindowServer/WSWindow.h>
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#include <WindowServer/WSWindowManager.h>
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#include <WindowServer/WSAPITypes.h>
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#include <WindowServer/WSClipboard.h>
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#include <WindowServer/WSScreen.h>
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#include <SharedBuffer.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdio.h>
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HashMap<int, WSClientConnection*>* s_connections;
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void WSClientConnection::for_each_client(Function<void(WSClientConnection&)> callback)
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{
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if (!s_connections)
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return;
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for (auto& it : *s_connections) {
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callback(*it.value);
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}
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}
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WSClientConnection* WSClientConnection::from_client_id(int client_id)
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{
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if (!s_connections)
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return nullptr;
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auto it = s_connections->find(client_id);
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if (it == s_connections->end())
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return nullptr;
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return (*it).value;
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}
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WSClientConnection::WSClientConnection(int fd)
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: m_fd(fd)
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{
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static int s_next_client_id = 0;
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m_client_id = ++s_next_client_id;
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if (!s_connections)
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s_connections = new HashMap<int, WSClientConnection*>;
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s_connections->set(m_client_id, this);
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WSAPI_ServerMessage message;
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message.type = WSAPI_ServerMessage::Type::Greeting;
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message.greeting.server_pid = getpid();
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message.greeting.screen_rect = WSScreen::the().rect();
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post_message(message);
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}
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WSClientConnection::~WSClientConnection()
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{
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s_connections->remove(m_client_id);
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int rc = close(m_fd);
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ASSERT(rc == 0);
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}
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void WSClientConnection::post_error(const String& error_message)
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{
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dbgprintf("WSClientConnection::post_error: client_id=%d: %s\n", m_client_id, error_message.characters());
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WSAPI_ServerMessage message;
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message.type = WSAPI_ServerMessage::Type::Error;
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ASSERT(error_message.length() < (ssize_t)sizeof(message.text));
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strcpy(message.text, error_message.characters());
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message.text_length = error_message.length();
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post_message(message);
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}
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void WSClientConnection::post_message(const WSAPI_ServerMessage& message)
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{
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int nwritten = write(m_fd, &message, sizeof(message));
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if (nwritten < 0) {
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if (errno == EPIPE) {
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dbgprintf("WSClientConnection::post_message: Disconnected from peer.\n");
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return;
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}
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perror("WSClientConnection::post_message write");
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ASSERT_NOT_REACHED();
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}
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ASSERT(nwritten == sizeof(message));
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}
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void WSClientConnection::notify_about_new_screen_rect(const Rect& rect)
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{
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WSAPI_ServerMessage message;
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message.type = WSAPI_ServerMessage::Type::ScreenRectChanged;
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message.screen.rect = rect;
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post_message(message);
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}
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void WSClientConnection::on_message(const WSMessage& message)
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{
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if (message.is_client_request()) {
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on_request(static_cast<const WSAPIClientRequest&>(message));
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return;
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}
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if (message.type() == WSMessage::WM_ClientDisconnected) {
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int client_id = static_cast<const WSClientDisconnectedNotification&>(message).client_id();
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dbgprintf("WSClientConnection: Client disconnected: %d\n", client_id);
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delete this;
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return;
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}
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}
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void WSClientConnection::handle_request(const WSAPICreateMenubarRequest&)
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{
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int menubar_id = m_next_menubar_id++;
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auto menubar = make<WSMenuBar>(*this, menubar_id);
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m_menubars.set(menubar_id, move(menubar));
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidCreateMenubar;
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response.menu.menubar_id = menubar_id;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIDestroyMenubarRequest& request)
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{
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int menubar_id = request.menubar_id();
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auto it = m_menubars.find(menubar_id);
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if (it == m_menubars.end()) {
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post_error("Bad menubar ID");
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return;
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}
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auto& menubar = *(*it).value;
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WSWindowManager::the().close_menubar(menubar);
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m_menubars.remove(it);
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidDestroyMenubar;
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response.menu.menubar_id = menubar_id;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPICreateMenuRequest& request)
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{
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int menu_id = m_next_menu_id++;
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auto menu = make<WSMenu>(this, menu_id, request.text());
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m_menus.set(menu_id, move(menu));
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidCreateMenu;
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response.menu.menu_id = menu_id;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIDestroyMenuRequest& request)
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{
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int menu_id = static_cast<const WSAPIDestroyMenuRequest&>(request).menu_id();
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auto it = m_menus.find(menu_id);
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if (it == m_menus.end()) {
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post_error("Bad menu ID");
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return;
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}
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auto& menu = *(*it).value;
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WSWindowManager::the().close_menu(menu);
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m_menus.remove(it);
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidDestroyMenu;
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response.menu.menu_id = menu_id;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPISetApplicationMenubarRequest& request)
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{
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int menubar_id = request.menubar_id();
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auto it = m_menubars.find(menubar_id);
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if (it == m_menubars.end()) {
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post_error("Bad menubar ID");
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return;
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}
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auto& menubar = *(*it).value;
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m_app_menubar = menubar.make_weak_ptr();
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WSWindowManager::the().notify_client_changed_app_menubar(*this);
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidSetApplicationMenubar;
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response.menu.menubar_id = menubar_id;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIAddMenuToMenubarRequest& request)
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{
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int menubar_id = request.menubar_id();
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int menu_id = request.menu_id();
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auto it = m_menubars.find(menubar_id);
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auto jt = m_menus.find(menu_id);
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if (it == m_menubars.end()) {
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post_error("Bad menubar ID");
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return;
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}
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if (jt == m_menus.end()) {
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post_error("Bad menu ID");
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return;
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}
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auto& menubar = *(*it).value;
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auto& menu = *(*jt).value;
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menubar.add_menu(&menu);
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidAddMenuToMenubar;
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response.menu.menubar_id = menubar_id;
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response.menu.menu_id = menu_id;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIAddMenuItemRequest& request)
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{
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int menu_id = request.menu_id();
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unsigned identifier = request.identifier();
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auto it = m_menus.find(menu_id);
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if (it == m_menus.end()) {
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post_error("Bad menu ID");
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return;
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}
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auto& menu = *(*it).value;
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menu.add_item(make<WSMenuItem>(identifier, request.text(), request.shortcut_text()));
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidAddMenuItem;
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response.menu.menu_id = menu_id;
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response.menu.identifier = identifier;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIAddMenuSeparatorRequest& request)
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{
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int menu_id = request.menu_id();
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auto it = m_menus.find(menu_id);
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if (it == m_menus.end()) {
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post_error("Bad menu ID");
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return;
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}
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auto& menu = *(*it).value;
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menu.add_item(make<WSMenuItem>(WSMenuItem::Separator));
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidAddMenuSeparator;
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response.menu.menu_id = menu_id;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPISetWindowOpacityRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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window.set_opacity(request.opacity());
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}
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void WSClientConnection::handle_request(const WSAPISetWallpaperRequest& request)
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{
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bool success = WSWindowManager::the().set_wallpaper(request.wallpaper());
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidSetWallpaper;
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response.value = success;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIGetWallpaperRequest&)
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{
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auto path = WSWindowManager::the().wallpaper_path();
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidGetWallpaper;
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ASSERT(path.length() < (int)sizeof(response.text));
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strncpy(response.text, path.characters(), path.length());
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response.text_length = path.length();
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPISetWindowTitleRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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window.set_title(request.title());
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}
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void WSClientConnection::handle_request(const WSAPIGetWindowTitleRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidGetWindowTitle;
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response.window_id = window.window_id();
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ASSERT(window.title().length() < (ssize_t)sizeof(response.text));
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strcpy(response.text, window.title().characters());
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response.text_length = window.title().length();
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPISetWindowRectRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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window.set_rect(request.rect());
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post_paint_request(window, request.rect());
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}
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void WSClientConnection::handle_request(const WSAPIGetWindowRectRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidGetWindowRect;
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response.window_id = window.window_id();
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response.window.rect = window.rect();
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPISetClipboardContentsRequest& request)
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{
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auto shared_buffer = SharedBuffer::create_from_shared_buffer_id(request.shared_buffer_id());
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if (!shared_buffer) {
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post_error("Bad shared buffer ID");
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return;
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}
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WSClipboard::the().set_data(*shared_buffer, request.size());
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidSetClipboardContents;
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response.clipboard.shared_buffer_id = shared_buffer->shared_buffer_id();
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIGetClipboardContentsRequest&)
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{
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidGetClipboardContents;
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response.clipboard.shared_buffer_id = -1;
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response.clipboard.contents_size = 0;
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if (WSClipboard::the().size()) {
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// FIXME: Optimize case where an app is copy/pasting within itself.
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// We can just reuse the SharedBuffer then, since it will have the same peer PID.
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// It would be even nicer if a SharedBuffer could have an arbitrary number of clients..
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RetainPtr<SharedBuffer> shared_buffer = SharedBuffer::create(m_pid, WSClipboard::the().size());
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ASSERT(shared_buffer);
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memcpy(shared_buffer->data(), WSClipboard::the().data(), WSClipboard::the().size());
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shared_buffer->seal();
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response.clipboard.shared_buffer_id = shared_buffer->shared_buffer_id();
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response.clipboard.contents_size = WSClipboard::the().size();
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// FIXME: This is a workaround for the fact that SharedBuffers will go away if neither side is retaining them.
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// After we respond to GetClipboardContents, we have to wait for the client to retain the buffer on his side.
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m_last_sent_clipboard_content = move(shared_buffer);
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}
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPICreateWindowRequest& request)
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{
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int window_id = m_next_window_id++;
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auto window = make<WSWindow>(*this, request.window_type(), window_id, request.is_modal());
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window->set_has_alpha_channel(request.has_alpha_channel());
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window->set_resizable(request.is_resizable());
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window->set_title(request.title());
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window->set_rect(request.rect());
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window->set_opacity(request.opacity());
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window->set_size_increment(request.size_increment());
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window->set_base_size(request.base_size());
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window->invalidate();
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m_windows.set(window_id, move(window));
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidCreateWindow;
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response.window_id = window_id;
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIDestroyWindowRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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WSWindowManager::the().invalidate(window);
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m_windows.remove(it);
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}
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void WSClientConnection::post_paint_request(const WSWindow& window, const Rect& rect)
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{
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::Paint;
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response.window_id = window.window_id();
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response.paint.rect = rect;
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response.paint.window_size = window.size();
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPIInvalidateRectRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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post_paint_request(window, request.rect());
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}
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void WSClientConnection::handle_request(const WSAPIDidFinishPaintingNotification& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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if (!window.has_painted_since_last_resize()) {
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if (window.last_lazy_resize_rect().size() == request.rect().size()) {
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window.set_has_painted_since_last_resize(true);
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WSMessageLoop::the().post_message(window, make<WSResizeEvent>(window.last_lazy_resize_rect(), window.rect()));
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}
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}
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WSWindowManager::the().invalidate(window, request.rect());
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}
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void WSClientConnection::handle_request(const WSAPIGetWindowBackingStoreRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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auto* backing_store = window.backing_store();
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WSAPI_ServerMessage response;
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response.type = WSAPI_ServerMessage::Type::DidGetWindowBackingStore;
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response.window_id = window_id;
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response.backing.bpp = sizeof(RGBA32);
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response.backing.pitch = backing_store->pitch();
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response.backing.size = backing_store->size();
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response.backing.has_alpha_channel = backing_store->has_alpha_channel();
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response.backing.shared_buffer_id = backing_store->shared_buffer_id();
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post_message(response);
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}
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void WSClientConnection::handle_request(const WSAPISetWindowBackingStoreRequest& request)
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{
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int window_id = request.window_id();
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auto it = m_windows.find(window_id);
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if (it == m_windows.end()) {
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post_error("Bad window ID");
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return;
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}
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auto& window = *(*it).value;
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if (window.last_backing_store() && window.last_backing_store()->shared_buffer_id() == request.shared_buffer_id()) {
|
|
window.swap_backing_stores();
|
|
} else {
|
|
auto shared_buffer = SharedBuffer::create_from_shared_buffer_id(request.shared_buffer_id());
|
|
if (!shared_buffer)
|
|
return;
|
|
auto backing_store = GraphicsBitmap::create_with_shared_buffer(
|
|
request.has_alpha_channel() ? GraphicsBitmap::Format::RGBA32 : GraphicsBitmap::Format::RGB32,
|
|
*shared_buffer,
|
|
request.size());
|
|
window.set_backing_store(move(backing_store));
|
|
}
|
|
|
|
if (request.flush_immediately())
|
|
window.invalidate();
|
|
|
|
WSAPI_ServerMessage response;
|
|
response.type = WSAPI_ServerMessage::Type::DidSetWindowBackingStore;
|
|
response.window_id = window_id;
|
|
response.backing.shared_buffer_id = request.shared_buffer_id();
|
|
post_message(response);
|
|
}
|
|
|
|
void WSClientConnection::handle_request(const 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::handle_request(const WSAPISetWindowOverrideCursorRequest& 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_override_cursor(WSCursor::create(request.cursor()));
|
|
}
|
|
|
|
void WSClientConnection::on_request(const WSAPIClientRequest& request)
|
|
{
|
|
switch (request.type()) {
|
|
case WSMessage::APICreateMenubarRequest:
|
|
return handle_request(static_cast<const WSAPICreateMenubarRequest&>(request));
|
|
case WSMessage::APIDestroyMenubarRequest:
|
|
return handle_request(static_cast<const WSAPIDestroyMenubarRequest&>(request));
|
|
case WSMessage::APICreateMenuRequest:
|
|
return handle_request(static_cast<const WSAPICreateMenuRequest&>(request));
|
|
case WSMessage::APIDestroyMenuRequest:
|
|
return handle_request(static_cast<const WSAPIDestroyMenuRequest&>(request));
|
|
case WSMessage::APISetApplicationMenubarRequest:
|
|
return handle_request(static_cast<const WSAPISetApplicationMenubarRequest&>(request));
|
|
case WSMessage::APIAddMenuToMenubarRequest:
|
|
return handle_request(static_cast<const WSAPIAddMenuToMenubarRequest&>(request));
|
|
case WSMessage::APIAddMenuItemRequest:
|
|
return handle_request(static_cast<const WSAPIAddMenuItemRequest&>(request));
|
|
case WSMessage::APIAddMenuSeparatorRequest:
|
|
return handle_request(static_cast<const WSAPIAddMenuSeparatorRequest&>(request));
|
|
case WSMessage::APISetWindowTitleRequest:
|
|
return handle_request(static_cast<const WSAPISetWindowTitleRequest&>(request));
|
|
case WSMessage::APIGetWindowTitleRequest:
|
|
return handle_request(static_cast<const WSAPIGetWindowTitleRequest&>(request));
|
|
case WSMessage::APISetWindowRectRequest:
|
|
return handle_request(static_cast<const WSAPISetWindowRectRequest&>(request));
|
|
case WSMessage::APIGetWindowRectRequest:
|
|
return handle_request(static_cast<const WSAPIGetWindowRectRequest&>(request));
|
|
case WSMessage::APISetClipboardContentsRequest:
|
|
return handle_request(static_cast<const WSAPISetClipboardContentsRequest&>(request));
|
|
case WSMessage::APIGetClipboardContentsRequest:
|
|
return handle_request(static_cast<const WSAPIGetClipboardContentsRequest&>(request));
|
|
case WSMessage::APICreateWindowRequest:
|
|
return handle_request(static_cast<const WSAPICreateWindowRequest&>(request));
|
|
case WSMessage::APIDestroyWindowRequest:
|
|
return handle_request(static_cast<const WSAPIDestroyWindowRequest&>(request));
|
|
case WSMessage::APIInvalidateRectRequest:
|
|
return handle_request(static_cast<const WSAPIInvalidateRectRequest&>(request));
|
|
case WSMessage::APIDidFinishPaintingNotification:
|
|
return handle_request(static_cast<const WSAPIDidFinishPaintingNotification&>(request));
|
|
case WSMessage::APIGetWindowBackingStoreRequest:
|
|
return handle_request(static_cast<const WSAPIGetWindowBackingStoreRequest&>(request));
|
|
case WSMessage::APISetGlobalCursorTrackingRequest:
|
|
return handle_request(static_cast<const WSAPISetGlobalCursorTrackingRequest&>(request));
|
|
case WSMessage::APISetWindowOpacityRequest:
|
|
return handle_request(static_cast<const WSAPISetWindowOpacityRequest&>(request));
|
|
case WSMessage::APISetWindowBackingStoreRequest:
|
|
return handle_request(static_cast<const WSAPISetWindowBackingStoreRequest&>(request));
|
|
case WSMessage::APISetWallpaperRequest:
|
|
return handle_request(static_cast<const WSAPISetWallpaperRequest&>(request));
|
|
case WSMessage::APIGetWallpaperRequest:
|
|
return handle_request(static_cast<const WSAPIGetWallpaperRequest&>(request));
|
|
case WSMessage::APISetWindowOverrideCursorRequest:
|
|
return handle_request(static_cast<const WSAPISetWindowOverrideCursorRequest&>(request));
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
bool WSClientConnection::is_showing_modal_window() const
|
|
{
|
|
for (auto& it : m_windows) {
|
|
auto& window = *it.value;
|
|
if (window.is_visible() && window.is_modal())
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|