kwin/dbusinterface.cpp
Aleix Pol 66f87138b1 Make it possible to restart kwin_wayland from a command line argument
A recent patch made it possible to restart KWin when it crashes, this
opens the possibility to do it for development purposes. So far it could
be done using `killall -9 kwin_wayland`. This patch embraces this
functionality under --replace so it's a bit more documented and under
its own semantics.
It is done by returning the process with 133 exit code and picking that
code specifically as a wish to restart.
2021-02-02 12:20:13 +00:00

559 lines
17 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2012 Martin Gräßlin <mgraesslin@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
// own
#include "dbusinterface.h"
#include "compositingadaptor.h"
#include "pluginsadaptor.h"
#include "virtualdesktopmanageradaptor.h"
// kwin
#include "abstract_client.h"
#include "atoms.h"
#include "composite.h"
#include "debug_console.h"
#include "main.h"
#include "placement.h"
#include "platform.h"
#include "pluginmanager.h"
#include "kwinadaptor.h"
#include "scene.h"
#include "unmanaged.h"
#include "workspace.h"
#include "virtualdesktops.h"
#ifdef KWIN_BUILD_ACTIVITIES
#include "activities.h"
#endif
// Qt
#include <QOpenGLContext>
#include <QDBusServiceWatcher>
namespace KWin
{
DBusInterface::DBusInterface(QObject *parent)
: QObject(parent)
, m_serviceName(QStringLiteral("org.kde.KWin"))
{
(void) new KWinAdaptor(this);
QDBusConnection dbus = QDBusConnection::sessionBus();
dbus.registerObject(QStringLiteral("/KWin"), this);
const QByteArray dBusSuffix = qgetenv("KWIN_DBUS_SERVICE_SUFFIX");
if (!dBusSuffix.isNull()) {
m_serviceName = m_serviceName + QLatin1Char('.') + dBusSuffix;
}
if (!dbus.registerService(m_serviceName)) {
QDBusServiceWatcher *dog = new QDBusServiceWatcher(m_serviceName, dbus, QDBusServiceWatcher::WatchForUnregistration, this);
connect(dog, &QDBusServiceWatcher::serviceUnregistered, this, &DBusInterface::becomeKWinService);
} else {
announceService();
}
dbus.connect(QString(), QStringLiteral("/KWin"), QStringLiteral("org.kde.KWin"), QStringLiteral("reloadConfig"),
Workspace::self(), SLOT(slotReloadConfig()));
connect(kwinApp(), &Application::x11ConnectionChanged, this, &DBusInterface::announceService);
}
void DBusInterface::becomeKWinService(const QString &service)
{
// TODO: this watchdog exists to make really safe that we at some point get the service
// but it's probably no longer needed since we explicitly unregister the service with the deconstructor
if (service == m_serviceName && QDBusConnection::sessionBus().registerService(m_serviceName) && sender()) {
sender()->deleteLater(); // bye doggy :'(
announceService();
}
}
DBusInterface::~DBusInterface()
{
QDBusConnection::sessionBus().unregisterService(m_serviceName);
// KApplication automatically also grabs org.kde.kwin, so it's often been used externally - ensure to free it as well
QDBusConnection::sessionBus().unregisterService(QStringLiteral("org.kde.kwin"));
if (kwinApp()->x11Connection()) {
xcb_delete_property(kwinApp()->x11Connection(), kwinApp()->x11RootWindow(), atoms->kwin_dbus_service);
}
}
void DBusInterface::announceService()
{
if (!kwinApp()->x11Connection()) {
return;
}
const QByteArray service = m_serviceName.toUtf8();
xcb_change_property(kwinApp()->x11Connection(), XCB_PROP_MODE_REPLACE, kwinApp()->x11RootWindow(), atoms->kwin_dbus_service,
atoms->utf8_string, 8, service.size(), service.constData());
}
// wrap void methods with no arguments to Workspace
#define WRAP(name) \
void DBusInterface::name() \
{\
Workspace::self()->name();\
}
WRAP(reconfigure)
#undef WRAP
void DBusInterface::killWindow()
{
Workspace::self()->slotKillWindow();
}
#define WRAP(name) \
void DBusInterface::name() \
{\
Placement::self()->name();\
}
WRAP(cascadeDesktop)
WRAP(unclutterDesktop)
#undef WRAP
// wrap returning methods with no arguments to Workspace
#define WRAP( rettype, name ) \
rettype DBusInterface::name( ) \
{\
return Workspace::self()->name(); \
}
WRAP(QString, supportInformation)
#undef WRAP
bool DBusInterface::startActivity(const QString &in0)
{
#ifdef KWIN_BUILD_ACTIVITIES
if (!Activities::self()) {
return false;
}
return Activities::self()->start(in0);
#else
Q_UNUSED(in0)
return false;
#endif
}
bool DBusInterface::stopActivity(const QString &in0)
{
#ifdef KWIN_BUILD_ACTIVITIES
if (!Activities::self()) {
return false;
}
return Activities::self()->stop(in0);
#else
Q_UNUSED(in0)
return false;
#endif
}
int DBusInterface::currentDesktop()
{
return VirtualDesktopManager::self()->current();
}
bool DBusInterface::setCurrentDesktop(int desktop)
{
return VirtualDesktopManager::self()->setCurrent(desktop);
}
void DBusInterface::nextDesktop()
{
VirtualDesktopManager::self()->moveTo<DesktopNext>();
}
void DBusInterface::previousDesktop()
{
VirtualDesktopManager::self()->moveTo<DesktopPrevious>();
}
void DBusInterface::showDebugConsole()
{
DebugConsole *console = new DebugConsole;
console->show();
}
void DBusInterface::replace()
{
QCoreApplication::exit(133);
}
namespace {
QVariantMap clientToVariantMap(const AbstractClient *c)
{
return {
{QStringLiteral("resourceClass"), c->resourceClass()},
{QStringLiteral("resourceName"), c->resourceName()},
{QStringLiteral("desktopFile"), c->desktopFileName()},
{QStringLiteral("role"), c->windowRole()},
{QStringLiteral("caption"), c->captionNormal()},
{QStringLiteral("clientMachine"), c->wmClientMachine(true)},
{QStringLiteral("localhost"), c->isLocalhost()},
{QStringLiteral("type"), c->windowType()},
{QStringLiteral("x"), c->x()},
{QStringLiteral("y"), c->y()},
{QStringLiteral("width"), c->width()},
{QStringLiteral("height"), c->height()},
{QStringLiteral("x11DesktopNumber"), c->desktop()},
{QStringLiteral("minimized"), c->isMinimized()},
{QStringLiteral("shaded"), c->isShade()},
{QStringLiteral("fullscreen"), c->isFullScreen()},
{QStringLiteral("keepAbove"), c->keepAbove()},
{QStringLiteral("keepBelow"), c->keepBelow()},
{QStringLiteral("noBorder"), c->noBorder()},
{QStringLiteral("skipTaskbar"), c->skipTaskbar()},
{QStringLiteral("skipPager"), c->skipPager()},
{QStringLiteral("skipSwitcher"), c->skipSwitcher()},
{QStringLiteral("maximizeHorizontal"), c->maximizeMode() & MaximizeHorizontal},
{QStringLiteral("maximizeVertical"), c->maximizeMode() & MaximizeVertical},
#ifdef KWIN_BUILD_ACTIVITIES
{QStringLiteral("activities"), c->activities()},
#endif
};
}
}
QVariantMap DBusInterface::queryWindowInfo()
{
m_replyQueryWindowInfo = message();
setDelayedReply(true);
kwinApp()->platform()->startInteractiveWindowSelection(
[this] (Toplevel *t) {
if (auto c = qobject_cast<AbstractClient*>(t)) {
QDBusConnection::sessionBus().send(m_replyQueryWindowInfo.createReply(clientToVariantMap(c)));
} else if (qobject_cast<Unmanaged*>(t)) {
QDBusConnection::sessionBus().send(m_replyQueryWindowInfo.createErrorReply(
QStringLiteral("org.kde.KWin.Error.InvalidWindow"),
QStringLiteral("Tried to query information about an unmanaged window")));
} else {
QDBusConnection::sessionBus().send(m_replyQueryWindowInfo.createErrorReply(
QStringLiteral("org.kde.KWin.Error.UserCancel"),
QStringLiteral("User cancelled the query")));
}
}
);
return QVariantMap{};
}
QVariantMap DBusInterface::getWindowInfo(const QString &uuid)
{
const auto id = QUuid::fromString(uuid);
const auto client = workspace()->findAbstractClient([&id] (const AbstractClient *c) { return c->internalId() == id; });
if (client) {
return clientToVariantMap(client);
} else {
return {};
}
}
CompositorDBusInterface::CompositorDBusInterface(Compositor *parent)
: QObject(parent)
, m_compositor(parent)
{
connect(m_compositor, &Compositor::compositingToggled, this, &CompositorDBusInterface::compositingToggled);
new CompositingAdaptor(this);
QDBusConnection dbus = QDBusConnection::sessionBus();
dbus.registerObject(QStringLiteral("/Compositor"), this);
dbus.connect(QString(), QStringLiteral("/Compositor"), QStringLiteral("org.kde.kwin.Compositing"),
QStringLiteral("reinit"), this, SLOT(reinitialize()));
}
QString CompositorDBusInterface::compositingNotPossibleReason() const
{
return kwinApp()->platform()->compositingNotPossibleReason();
}
QString CompositorDBusInterface::compositingType() const
{
if (!m_compositor->scene()) {
return QStringLiteral("none");
}
switch (m_compositor->scene()->compositingType()) {
case XRenderCompositing:
return QStringLiteral("xrender");
case OpenGL2Compositing:
if (QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES) {
return QStringLiteral("gles");
} else {
return QStringLiteral("gl2");
}
case QPainterCompositing:
return QStringLiteral("qpainter");
case NoCompositing:
default:
return QStringLiteral("none");
}
}
bool CompositorDBusInterface::isActive() const
{
return m_compositor->isActive();
}
bool CompositorDBusInterface::isCompositingPossible() const
{
return kwinApp()->platform()->compositingPossible();
}
bool CompositorDBusInterface::isOpenGLBroken() const
{
return kwinApp()->platform()->openGLCompositingIsBroken();
}
bool CompositorDBusInterface::platformRequiresCompositing() const
{
return kwinApp()->platform()->requiresCompositing();
}
void CompositorDBusInterface::resume()
{
if (kwinApp()->operationMode() == Application::OperationModeX11) {
static_cast<X11Compositor*>(m_compositor)->resume(X11Compositor::ScriptSuspend);
}
}
void CompositorDBusInterface::suspend()
{
if (kwinApp()->operationMode() == Application::OperationModeX11) {
static_cast<X11Compositor*>(m_compositor)->suspend(X11Compositor::ScriptSuspend);
}
}
void CompositorDBusInterface::reinitialize()
{
m_compositor->reinitialize();
}
QStringList CompositorDBusInterface::supportedOpenGLPlatformInterfaces() const
{
QStringList interfaces;
bool supportsGlx = false;
#if HAVE_EPOXY_GLX
supportsGlx = (kwinApp()->operationMode() == Application::OperationModeX11);
#endif
if (QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES) {
supportsGlx = false;
}
if (supportsGlx) {
interfaces << QStringLiteral("glx");
}
interfaces << QStringLiteral("egl");
return interfaces;
}
VirtualDesktopManagerDBusInterface::VirtualDesktopManagerDBusInterface(VirtualDesktopManager *parent)
: QObject(parent)
, m_manager(parent)
{
qDBusRegisterMetaType<KWin::DBusDesktopDataStruct>();
qDBusRegisterMetaType<KWin::DBusDesktopDataVector>();
new VirtualDesktopManagerAdaptor(this);
QDBusConnection::sessionBus().registerObject(QStringLiteral("/VirtualDesktopManager"),
QStringLiteral("org.kde.KWin.VirtualDesktopManager"),
this
);
connect(m_manager, &VirtualDesktopManager::currentChanged, this,
[this](uint previousDesktop, uint newDesktop) {
Q_UNUSED(previousDesktop);
Q_UNUSED(newDesktop);
emit currentChanged(m_manager->currentDesktop()->id());
}
);
connect(m_manager, &VirtualDesktopManager::countChanged, this,
[this](uint previousCount, uint newCount) {
Q_UNUSED(previousCount);
emit countChanged(newCount);
emit desktopsChanged(desktops());
}
);
connect(m_manager, &VirtualDesktopManager::navigationWrappingAroundChanged, this,
[this]() {
emit navigationWrappingAroundChanged(isNavigationWrappingAround());
}
);
connect(m_manager, &VirtualDesktopManager::rowsChanged, this, &VirtualDesktopManagerDBusInterface::rowsChanged);
for (auto *vd : m_manager->desktops()) {
connect(vd, &VirtualDesktop::x11DesktopNumberChanged, this,
[this, vd]() {
DBusDesktopDataStruct data{.position = vd->x11DesktopNumber() - 1, .id = vd->id(), .name = vd->name()};
emit desktopDataChanged(vd->id(), data);
emit desktopsChanged(desktops());
}
);
connect(vd, &VirtualDesktop::nameChanged, this,
[this, vd]() {
DBusDesktopDataStruct data{.position = vd->x11DesktopNumber() - 1, .id = vd->id(), .name = vd->name()};
emit desktopDataChanged(vd->id(), data);
emit desktopsChanged(desktops());
}
);
}
connect(m_manager, &VirtualDesktopManager::desktopCreated, this,
[this](VirtualDesktop *vd) {
connect(vd, &VirtualDesktop::x11DesktopNumberChanged, this,
[this, vd]() {
DBusDesktopDataStruct data{.position = vd->x11DesktopNumber() - 1, .id = vd->id(), .name = vd->name()};
emit desktopDataChanged(vd->id(), data);
emit desktopsChanged(desktops());
}
);
connect(vd, &VirtualDesktop::nameChanged, this,
[this, vd]() {
DBusDesktopDataStruct data{.position = vd->x11DesktopNumber() - 1, .id = vd->id(), .name = vd->name()};
emit desktopDataChanged(vd->id(), data);
emit desktopsChanged(desktops());
}
);
DBusDesktopDataStruct data{.position = vd->x11DesktopNumber() - 1, .id = vd->id(), .name = vd->name()};
emit desktopCreated(vd->id(), data);
emit desktopsChanged(desktops());
}
);
connect(m_manager, &VirtualDesktopManager::desktopRemoved, this,
[this](VirtualDesktop *vd) {
emit desktopRemoved(vd->id());
emit desktopsChanged(desktops());
}
);
}
uint VirtualDesktopManagerDBusInterface::count() const
{
return m_manager->count();
}
void VirtualDesktopManagerDBusInterface::setRows(uint rows)
{
if (static_cast<uint>(m_manager->grid().height()) == rows) {
return;
}
m_manager->setRows(rows);
m_manager->save();
}
uint VirtualDesktopManagerDBusInterface::rows() const
{
return m_manager->rows();
}
void VirtualDesktopManagerDBusInterface::setCurrent(const QString &id)
{
if (m_manager->currentDesktop()->id() == id) {
return;
}
auto *vd = m_manager->desktopForId(id.toUtf8());
if (vd) {
m_manager->setCurrent(vd);
}
}
QString VirtualDesktopManagerDBusInterface::current() const
{
return m_manager->currentDesktop()->id();
}
void VirtualDesktopManagerDBusInterface::setNavigationWrappingAround(bool wraps)
{
if (m_manager->isNavigationWrappingAround() == wraps) {
return;
}
m_manager->setNavigationWrappingAround(wraps);
}
bool VirtualDesktopManagerDBusInterface::isNavigationWrappingAround() const
{
return m_manager->isNavigationWrappingAround();
}
DBusDesktopDataVector VirtualDesktopManagerDBusInterface::desktops() const
{
const auto desks = m_manager->desktops();
DBusDesktopDataVector desktopVect;
desktopVect.reserve(m_manager->count());
std::transform(desks.constBegin(), desks.constEnd(),
std::back_inserter(desktopVect),
[] (const VirtualDesktop *vd) {
return DBusDesktopDataStruct{.position = vd->x11DesktopNumber() - 1, .id = vd->id(), .name = vd->name()};
}
);
return desktopVect;
}
void VirtualDesktopManagerDBusInterface::createDesktop(uint position, const QString &name)
{
m_manager->createVirtualDesktop(position, name);
}
void VirtualDesktopManagerDBusInterface::setDesktopName(const QString &id, const QString &name)
{
VirtualDesktop *vd = m_manager->desktopForId(id.toUtf8());
if (!vd) {
return;
}
if (vd->name() == name) {
return;
}
vd->setName(name);
m_manager->save();
}
void VirtualDesktopManagerDBusInterface::removeDesktop(const QString &id)
{
m_manager->removeVirtualDesktop(id.toUtf8());
}
PluginManagerDBusInterface::PluginManagerDBusInterface(PluginManager *manager)
: QObject(manager)
, m_manager(manager)
{
new PluginsAdaptor(this);
QDBusConnection::sessionBus().registerObject(QStringLiteral("/Plugins"),
QStringLiteral("org.kde.KWin.Plugins"),
this);
}
QStringList PluginManagerDBusInterface::loadedPlugins() const
{
return m_manager->loadedPlugins();
}
QStringList PluginManagerDBusInterface::availablePlugins() const
{
return m_manager->availablePlugins();
}
bool PluginManagerDBusInterface::LoadPlugin(const QString &name)
{
return m_manager->loadPlugin(name);
}
void PluginManagerDBusInterface::UnloadPlugin(const QString &name)
{
m_manager->unloadPlugin(name);
}
} // namespace