File indexing completed on 2024-11-10 04:57:32

 /*
     SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
 */
 #include "server_decoration.h"
 #include "display.h"
 #include "surface.h"
 #include "utils/common.h"
 
 #include <QList>
 
 #include <optional>
 
 #include <qwayland-server-server-decoration.h>
 
 namespace KWin
 {
 static const quint32 s_version = 1;
 
 class ServerSideDecorationManagerInterfacePrivate : public QtWaylandServer::org_kde_kwin_server_decoration_manager
 {
 public:
     ServerSideDecorationManagerInterfacePrivate(ServerSideDecorationManagerInterface *_q, Display *display);
     void setDefaultMode(ServerSideDecorationManagerInterface::Mode mode);
 
     ServerSideDecorationManagerInterface::Mode defaultMode = ServerSideDecorationManagerInterface::Mode::None;
     ServerSideDecorationManagerInterface *q;
 
 protected:
     void org_kde_kwin_server_decoration_manager_bind_resource(Resource *resource) override;
     void org_kde_kwin_server_decoration_manager_create(Resource *resource, uint32_t id, wl_resource *surface) override;
 };
 
 static uint32_t modeWayland(ServerSideDecorationManagerInterface::Mode mode)
 {
     switch (mode) {
     case ServerSideDecorationManagerInterface::Mode::None:
         return ServerSideDecorationManagerInterfacePrivate::mode_None;
     case ServerSideDecorationManagerInterface::Mode::Client:
         return ServerSideDecorationManagerInterfacePrivate::mode_Client;
     case ServerSideDecorationManagerInterface::Mode::Server:
         return ServerSideDecorationManagerInterfacePrivate::mode_Server;
     default:
         Q_UNREACHABLE();
     }
 }
 
 void ServerSideDecorationManagerInterfacePrivate::org_kde_kwin_server_decoration_manager_create(Resource *resource, uint32_t id, wl_resource *surface)
 {
     SurfaceInterface *s = SurfaceInterface::get(surface);
     if (!s) {
         wl_resource_post_error(resource->handle, 0, "Invalid  surface");
         return;
     }
 
     wl_resource *decorationResource = wl_resource_create(resource->client(), &org_kde_kwin_server_decoration_interface, resource->version(), id);
     if (!decorationResource) {
         wl_client_post_no_memory(resource->client());
         return;
     }
     auto decoration = new ServerSideDecorationInterface(q, s, decorationResource);
     decoration->setMode(defaultMode);
     Q_EMIT q->decorationCreated(decoration);
 }
 
 void ServerSideDecorationManagerInterfacePrivate::setDefaultMode(ServerSideDecorationManagerInterface::Mode mode)
 {
     defaultMode = mode;
     const uint32_t wlMode = modeWayland(mode);
 
     const auto clientResources = resourceMap();
     for (Resource *resource : clientResources) {
         send_default_mode(resource->handle, wlMode);
     }
 }
 
 ServerSideDecorationManagerInterfacePrivate::ServerSideDecorationManagerInterfacePrivate(ServerSideDecorationManagerInterface *_q, Display *display)
     : QtWaylandServer::org_kde_kwin_server_decoration_manager(*display, s_version)
     , q(_q)
 {
 }
 
 void ServerSideDecorationManagerInterfacePrivate::org_kde_kwin_server_decoration_manager_bind_resource(Resource *resource)
 {
     send_default_mode(resource->handle, modeWayland(defaultMode));
 }
 
 ServerSideDecorationManagerInterface::ServerSideDecorationManagerInterface(Display *display, QObject *parent)
     : QObject(parent)
     , d(new ServerSideDecorationManagerInterfacePrivate(this, display))
 {
 }
 
 ServerSideDecorationManagerInterface::~ServerSideDecorationManagerInterface() = default;
 
 void ServerSideDecorationManagerInterface::setDefaultMode(Mode mode)
 {
     d->setDefaultMode(mode);
 }
 
 ServerSideDecorationManagerInterface::Mode ServerSideDecorationManagerInterface::defaultMode() const
 {
     return d->defaultMode;
 }
 
 class ServerSideDecorationInterfacePrivate : public QtWaylandServer::org_kde_kwin_server_decoration
 {
 public:
     ServerSideDecorationInterfacePrivate(ServerSideDecorationManagerInterface *manager,
                                          ServerSideDecorationInterface *_q,
                                          SurfaceInterface *surface,
                                          wl_resource *resource);
     ~ServerSideDecorationInterfacePrivate();
 
     static ServerSideDecorationInterface *get(SurfaceInterface *surface);
     void setMode(ServerSideDecorationManagerInterface::Mode mode);
 
     ServerSideDecorationManagerInterface *manager;
     ServerSideDecorationManagerInterface::Mode mode = ServerSideDecorationManagerInterface::Mode::None;
     std::optional<ServerSideDecorationManagerInterface::Mode> preferredMode;
     SurfaceInterface *surface;
 
 private:
     ServerSideDecorationInterface *q;
     static QList<ServerSideDecorationInterfacePrivate *> s_all;
 
 protected:
     void org_kde_kwin_server_decoration_destroy_resource(Resource *resource) override;
     void org_kde_kwin_server_decoration_release(Resource *resource) override;
     void org_kde_kwin_server_decoration_request_mode(Resource *resource, uint32_t mode) override;
 };
 
 QList<ServerSideDecorationInterfacePrivate *> ServerSideDecorationInterfacePrivate::s_all;
 
 void ServerSideDecorationInterfacePrivate::org_kde_kwin_server_decoration_request_mode(Resource *resource, uint32_t mode)
 {
     ServerSideDecorationManagerInterface::Mode m = ServerSideDecorationManagerInterface::Mode::None;
     switch (mode) {
     case ServerSideDecorationManagerInterfacePrivate::mode_None:
         m = ServerSideDecorationManagerInterface::Mode::None;
         break;
     case ServerSideDecorationManagerInterfacePrivate::mode_Client:
         m = ServerSideDecorationManagerInterface::Mode::Client;
         break;
     case ServerSideDecorationManagerInterfacePrivate::mode_Server:
         m = ServerSideDecorationManagerInterface::Mode::Server;
         break;
     default:
         // invalid mode
         qCWarning(KWIN_CORE) << "Invalid mode:" << mode;
         return;
     }
     preferredMode = m;
     Q_EMIT q->preferredModeChanged();
 }
 
 void ServerSideDecorationInterfacePrivate::org_kde_kwin_server_decoration_release(Resource *resource)
 {
     wl_resource_destroy(resource->handle);
 }
 
 void ServerSideDecorationInterfacePrivate::org_kde_kwin_server_decoration_destroy_resource(Resource *resource)
 {
     delete q;
 }
 
 ServerSideDecorationInterface *ServerSideDecorationInterfacePrivate::get(SurfaceInterface *surface)
 {
     for (ServerSideDecorationInterfacePrivate *decoration : std::as_const(s_all)) {
         if (decoration->surface == surface) {
             return decoration->q;
         }
     }
     return nullptr;
 }
 
 ServerSideDecorationInterfacePrivate::ServerSideDecorationInterfacePrivate(ServerSideDecorationManagerInterface *manager,
                                                                            ServerSideDecorationInterface *_q,
                                                                            SurfaceInterface *surface,
                                                                            wl_resource *resource)
     : QtWaylandServer::org_kde_kwin_server_decoration(resource)
     , manager(manager)
     , surface(surface)
     , q(_q)
 {
     s_all << this;
 }
 
 ServerSideDecorationInterfacePrivate::~ServerSideDecorationInterfacePrivate()
 {
     s_all.removeAll(this);
 }
 
 void ServerSideDecorationInterfacePrivate::setMode(ServerSideDecorationManagerInterface::Mode mode)
 {
     this->mode = mode;
     send_mode(modeWayland(mode));
 }
 
 ServerSideDecorationInterface::ServerSideDecorationInterface(ServerSideDecorationManagerInterface *manager, SurfaceInterface *surface, wl_resource *resource)
     : QObject()
     , d(new ServerSideDecorationInterfacePrivate(manager, this, surface, resource))
 {
 }
 
 ServerSideDecorationInterface::~ServerSideDecorationInterface() = default;
 
 void ServerSideDecorationInterface::setMode(ServerSideDecorationManagerInterface::Mode mode)
 {
     d->setMode(mode);
 }
 
 ServerSideDecorationManagerInterface::Mode ServerSideDecorationInterface::mode() const
 {
     return d->mode;
 }
 
 ServerSideDecorationManagerInterface::Mode ServerSideDecorationInterface::preferredMode() const
 {
     return d->preferredMode.value_or(d->manager->defaultMode());
 }
 
 SurfaceInterface *ServerSideDecorationInterface::surface() const
 {
     return d->surface;
 }
 
 ServerSideDecorationInterface *ServerSideDecorationInterface::get(SurfaceInterface *surface)
 {
     return ServerSideDecorationInterfacePrivate::get(surface);
 }
 
 }
 
 #include "moc_server_decoration.cpp"