File indexing completed on 2024-04-28 16:49:16

 /*
     KWin - the KDE window manager
     This file is part of the KDE project.
 
     SPDX-FileCopyrightText: 2020 Aleix Pol Gonzalez <aleixpol@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "xdgactivationv1.h"
 #include "effects.h"
 #include "utils/common.h"
 #include "wayland/display.h"
 #include "wayland/plasmawindowmanagement_interface.h"
 #include "wayland/surface_interface.h"
 #include "wayland/xdgactivation_v1_interface.h"
 #include "wayland_server.h"
 #include "window.h"
 #include "workspace.h"
 #include <KApplicationTrader>
 #include <KDesktopFile>
 
 using namespace KWaylandServer;
 
 namespace KWin
 {
 
 static bool isPrivilegedInWindowManagement(const ClientConnection *client)
 {
     Q_ASSERT(client);
     auto requestedInterfaces = client->property("requestedInterfaces").toStringList();
     return requestedInterfaces.contains(QLatin1String("org_kde_plasma_window_management")) || requestedInterfaces.contains(QLatin1String("kde_lockscreen_overlay_v1"));
 }
 
 static const QString windowDesktopFileName(Window *window)
 {
     QString ret = window->desktopFileName();
     if (!ret.isEmpty()) {
         return ret;
     }
 
     // Fallback to StartupWMClass for legacy apps
     const auto resourceName = window->resourceName();
     const auto service = KApplicationTrader::query([&resourceName](const KService::Ptr &service) {
         return service->property("StartupWMClass").toString().compare(resourceName, Qt::CaseInsensitive) == 0;
     });
 
     if (!service.isEmpty()) {
         ret = service.constFirst()->desktopEntryName();
     }
     return ret;
 }
 
 XdgActivationV1Integration::XdgActivationV1Integration(XdgActivationV1Interface *activation, QObject *parent)
     : QObject(parent)
 {
     Workspace *ws = Workspace::self();
     connect(ws, &Workspace::windowActivated, this, [this](Window *window) {
         if (!m_currentActivationToken || !window || window->property("token").toString() == m_currentActivationToken->token) {
             return;
         }
 
         // We check that it's not the app that we are trying to activate
         if (windowDesktopFileName(window) != m_currentActivationToken->applicationId) {
             // But also that the new one has been requested after the token was requested
             if (window->lastUsageSerial() < m_currentActivationToken->serial) {
                 return;
             }
         }
 
         clear();
     });
     activation->setActivationTokenCreator([this](ClientConnection *client, SurfaceInterface *surface, uint serial, SeatInterface *seat, const QString &appId) -> QString {
         Workspace *ws = Workspace::self();
         Q_ASSERT(client); // Should always be available as it's coming straight from the wayland implementation
         const bool isPrivileged = isPrivilegedInWindowManagement(client);
         if (!isPrivileged && ws->activeWindow() && ws->activeWindow()->surface() != surface) {
             qCWarning(KWIN_CORE) << "Cannot grant a token to" << client;
             return QStringLiteral("not-granted-666");
         }
 
         return requestToken(isPrivileged, surface, serial, seat, appId);
     });
 
     connect(activation, &XdgActivationV1Interface::activateRequested, this, &XdgActivationV1Integration::activateSurface);
 }
 
 QString XdgActivationV1Integration::requestToken(bool isPrivileged, SurfaceInterface *surface, uint serial, SeatInterface *seat, const QString &appId)
 {
     static int i = 0;
     const auto newToken = QStringLiteral("kwin-%1").arg(++i);
 
     if (m_currentActivationToken) {
         clear();
     }
     bool showNotify = false;
     QIcon icon = QIcon::fromTheme(QStringLiteral("system-run"));
     if (const QString desktopFilePath = Window::findDesktopFile(appId); !desktopFilePath.isEmpty()) {
         KDesktopFile df(desktopFilePath);
         Window *window = Workspace::self()->activeWindow();
         if (!window || appId != window->desktopFileName()) {
             const auto desktop = df.desktopGroup();
             showNotify = desktop.readEntry("X-KDE-StartupNotify", desktop.readEntry("StartupNotify", true));
         }
         icon = QIcon::fromTheme(df.readIcon(), icon);
     }
     std::unique_ptr<KWaylandServer::PlasmaWindowActivationInterface> activation;
     if (showNotify) {
         activation = waylandServer()->plasmaActivationFeedback()->createActivation(appId);
     }
     m_currentActivationToken.reset(new ActivationToken{newToken, isPrivileged, surface, serial, seat, appId, showNotify, std::move(activation)});
     if (showNotify) {
         Q_EMIT effects->startupAdded(m_currentActivationToken->token, icon);
     }
     return newToken;
 }
 
 void XdgActivationV1Integration::activateSurface(SurfaceInterface *surface, const QString &token)
 {
     Workspace *ws = Workspace::self();
     auto window = waylandServer()->findWindow(surface);
     if (!window) {
         qCWarning(KWIN_CORE) << "could not find the toplevel to activate" << surface;
         return;
     }
 
     if (!m_currentActivationToken || m_currentActivationToken->token != token) {
         qCDebug(KWIN_CORE) << "Refusing to activate " << window << " (provided token: " << token << ", current token:" << (m_currentActivationToken ? m_currentActivationToken->token : QStringLiteral("null")) << ")";
         window->demandAttention();
         return;
     }
 
     auto ownerWindow = waylandServer()->findWindow(m_currentActivationToken->surface);
     qCDebug(KWIN_CORE) << "activating" << window << surface << "on behalf of" << m_currentActivationToken->surface << "into" << ownerWindow;
     if (!ws->activeWindow() || ws->activeWindow() == ownerWindow || ws->activeWindow()->lastUsageSerial() < m_currentActivationToken->serial || m_currentActivationToken->isPrivileged) {
         ws->activateWindow(window);
     } else {
         qCWarning(KWIN_CORE) << "Activation requested while owner isn't active" << (ownerWindow ? ownerWindow->desktopFileName() : "null")
                              << m_currentActivationToken->applicationId;
         window->demandAttention();
         clear();
     }
 }
 
 void XdgActivationV1Integration::clear()
 {
     Q_ASSERT(m_currentActivationToken);
     if (m_currentActivationToken->showNotify) {
         Q_EMIT effects->startupRemoved(m_currentActivationToken->token);
     }
     m_currentActivationToken.reset();
 }
 
 }