kwin/wayland_server.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "wayland_server.h"
#include "client.h"
#include "platform.h"
#include "composite.h"
#include "idle_inhibition.h"
#include "screens.h"
#include "shell_client.h"
#include "workspace.h"
// Client
#include <KWayland/Client/connection_thread.h>
#include <KWayland/Client/event_queue.h>
#include <KWayland/Client/registry.h>
#include <KWayland/Client/shm_pool.h>
#include <KWayland/Client/surface.h>
// Server
#include <KWayland/Server/appmenu_interface.h>
#include <KWayland/Server/compositor_interface.h>
#include <KWayland/Server/datadevicemanager_interface.h>
2017-12-27 08:50:39 +00:00
#include <KWayland/Server/datasource_interface.h>
#include <KWayland/Server/display.h>
#include <KWayland/Server/dpms_interface.h>
#include <KWayland/Server/idle_interface.h>
#include <KWayland/Server/idleinhibit_interface.h>
#include <KWayland/Server/output_interface.h>
#include <KWayland/Server/plasmashell_interface.h>
#include <KWayland/Server/plasmawindowmanagement_interface.h>
Implement support for pointer constraints Summary: There are two types of constraints supported: 1. Pointer confinement 2. Pointer locking In the case of confinement the pointer is confined to a given region of the surface. This is comparable to general operation where the pointer is confined to the screen region. In the second case the pointer gets locked. That means it cannot move at all. No further position updates are provided, only relative motion events can go to the application. There is a hint about cursor position update on unlock which is not yet implemented in KWayland::Server, thus also not in this change. The implementation in KWin grants the requests for pointer constraints when the pointer enters the constrained region, either by pointer movement or by e.g. stacking order changes. There is no confirmation from user required to enter that mode. But we want to show an OSD when the pointer gets constrained, this is not yet implemented, though. Breaking an active constraint is relatively easy. E.g. changing the stacking order will break the constraint if another surface is under the cursor. Also (in case of confinement) moving the pointer to an overlapping window breaks the confinement. But as soon as one moves the pointer back to the window a constraint might get honoured again. To properly break there is a dedicated event filter. It listens for a long press of the Escape key. If hold for 3sec the pointer constraint is broken and not activated again till the pointer got moved out of the window. Afterward when moving in the pointer might activate again. The escape filter ensures that the key press is forwarded to the application if it's a short press or if another key gets pressed during the three seconds. If the three seconds way fires, the later escape release is not sent to the application. This basic interaction is also ensured through an added auto test. This change implements T4605. Test Plan: Added auto test and nested KWin Wayland with D3488 Reviewers: #kwin, #plasma_on_wayland Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D3506
2016-11-25 06:17:43 +00:00
#include <KWayland/Server/pointerconstraints_interface.h>
#include <KWayland/Server/pointergestures_interface.h>
#include <KWayland/Server/qtsurfaceextension_interface.h>
#include <KWayland/Server/seat_interface.h>
#include <KWayland/Server/server_decoration_interface.h>
#include <KWayland/Server/server_decoration_palette_interface.h>
#include <KWayland/Server/shadow_interface.h>
#include <KWayland/Server/subcompositor_interface.h>
#include <KWayland/Server/blur_interface.h>
#include <KWayland/Server/shell_interface.h>
#include <KWayland/Server/outputmanagement_interface.h>
#include <KWayland/Server/outputconfiguration_interface.h>
#include <KWayland/Server/xdgshell_interface.h>
#include <KWayland/Server/xdgforeign_interface.h>
// Qt
#include <QThread>
#include <QWindow>
// system
#include <sys/types.h>
#include <sys/socket.h>
Support for syncing the clipboard from X11 to Wayland and vice versa Summary: The clipboard sync is done by a dedicated helper binary launched by KWin. This helper binary is forced to xcb platform to piggy-back on Qt's implementation of the X11 clipboard. In addition it implements the Wayland clipboard - which is much simpler. Reading the Wayland clipboard is based on the implementation in QtWayland. KWin internally knows the DataDeviceInterface belonging to the helper application. Whenever an xwayland client is focussed, this DataDevice is allowed to set the selection and KWin manually updates the current selection in the SeatInterface. By that the sync from X11 to Wayland is implemented. When afterwards a Wayland client is selected, it's sent the current selection which references the X clipboard and a data transfer can be initiated in the normal Wayland way. For the other direction KWin sends the current selection to the helper's DataDevice whenever an xwayland window is focused. The helper application reads the Wayland clipboard and sets it on the X11 clipboard. Thus the Wayland clipboard is synced to X11. The approach used here will also be useful for implementing a clipboard manager (aka klipper). Currently the implementation is not yet fully completed. We need to make sure that the helper application gets restarted in case of a crash. Test Plan: See added test case Reviewers: #plasma_on_wayland, #kwin Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D1973
2016-06-20 09:21:16 +00:00
#include <unistd.h>
//screenlocker
#include <KScreenLocker/KsldApp>
using namespace KWayland::Server;
namespace KWin
{
KWIN_SINGLETON_FACTORY(WaylandServer)
WaylandServer::WaylandServer(QObject *parent)
: QObject(parent)
{
qRegisterMetaType<KWayland::Server::OutputInterface::DpmsMode>();
connect(kwinApp(), &Application::screensCreated, this, &WaylandServer::initOutputs);
Support for syncing the clipboard from X11 to Wayland and vice versa Summary: The clipboard sync is done by a dedicated helper binary launched by KWin. This helper binary is forced to xcb platform to piggy-back on Qt's implementation of the X11 clipboard. In addition it implements the Wayland clipboard - which is much simpler. Reading the Wayland clipboard is based on the implementation in QtWayland. KWin internally knows the DataDeviceInterface belonging to the helper application. Whenever an xwayland client is focussed, this DataDevice is allowed to set the selection and KWin manually updates the current selection in the SeatInterface. By that the sync from X11 to Wayland is implemented. When afterwards a Wayland client is selected, it's sent the current selection which references the X clipboard and a data transfer can be initiated in the normal Wayland way. For the other direction KWin sends the current selection to the helper's DataDevice whenever an xwayland window is focused. The helper application reads the Wayland clipboard and sets it on the X11 clipboard. Thus the Wayland clipboard is synced to X11. The approach used here will also be useful for implementing a clipboard manager (aka klipper). Currently the implementation is not yet fully completed. We need to make sure that the helper application gets restarted in case of a crash. Test Plan: See added test case Reviewers: #plasma_on_wayland, #kwin Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D1973
2016-06-20 09:21:16 +00:00
connect(kwinApp(), &Application::x11ConnectionChanged, this, &WaylandServer::setupX11ClipboardSync);
}
WaylandServer::~WaylandServer()
{
destroyInputMethodConnection();
}
void WaylandServer::destroyInternalConnection()
{
emit terminatingInternalClientConnection();
if (m_internalConnection.client) {
// delete all connections hold by plugins like e.g. widget style
const auto connections = KWayland::Client::ConnectionThread::connections();
for (auto c : connections) {
if (c == m_internalConnection.client) {
continue;
}
emit c->connectionDied();
}
delete m_internalConnection.registry;
delete m_internalConnection.shm;
dispatch();
m_internalConnection.client->deleteLater();
m_internalConnection.clientThread->quit();
m_internalConnection.clientThread->wait();
delete m_internalConnection.clientThread;
m_internalConnection.client = nullptr;
m_internalConnection.server->destroy();
m_internalConnection.server = nullptr;
}
}
void WaylandServer::terminateClientConnections()
{
destroyInternalConnection();
destroyInputMethodConnection();
if (m_display) {
const auto connections = m_display->connections();
for (auto it = connections.begin(); it != connections.end(); ++it) {
(*it)->destroy();
}
}
}
template <class T>
void WaylandServer::createSurface(T *surface)
{
if (!Workspace::self()) {
// it's possible that a Surface gets created before Workspace is created
return;
}
if (surface->client() == m_xwayland.client) {
// skip Xwayland clients, those are created using standard X11 way
return;
}
if (surface->client() == m_screenLockerClientConnection) {
ScreenLocker::KSldApp::self()->lockScreenShown();
}
auto client = new ShellClient(surface);
auto it = std::find_if(m_plasmaShellSurfaces.begin(), m_plasmaShellSurfaces.end(),
[client] (PlasmaShellSurfaceInterface *surface) {
return client->surface() == surface->surface();
}
);
if (it != m_plasmaShellSurfaces.end()) {
client->installPlasmaShellSurface(*it);
m_plasmaShellSurfaces.erase(it);
}
if (auto menu = m_appMenuManager->appMenuForSurface(surface->surface())) {
client->installAppMenu(menu);
}
if (auto palette = m_paletteManager->paletteForSurface(surface->surface())) {
client->installPalette(palette);
}
if (client->isInternal()) {
m_internalClients << client;
} else {
m_clients << client;
}
if (client->readyForPainting()) {
emit shellClientAdded(client);
} else {
connect(client, &ShellClient::windowShown, this, &WaylandServer::shellClientShown);
}
//not directly connected as the connection is tied to client instead of this
2017-10-16 15:17:15 +00:00
connect(m_XdgForeign, &KWayland::Server::XdgForeignInterface::transientChanged, client, [this](KWayland::Server::SurfaceInterface *child) {
emit foreignTransientChanged(child);
});
}
bool WaylandServer::init(const QByteArray &socketName, InitalizationFlags flags)
{
m_initFlags = flags;
m_display = new KWayland::Server::Display(this);
if (!socketName.isNull() && !socketName.isEmpty()) {
m_display->setSocketName(QString::fromUtf8(socketName));
}
m_display->start();
if (!m_display->isRunning()) {
return false;
}
m_compositor = m_display->createCompositor(m_display);
m_compositor->create();
connect(m_compositor, &CompositorInterface::surfaceCreated, this,
[this] (SurfaceInterface *surface) {
// check whether we have a Toplevel with the Surface's id
Workspace *ws = Workspace::self();
if (!ws) {
// it's possible that a Surface gets created before Workspace is created
return;
}
if (surface->client() != xWaylandConnection()) {
// setting surface is only relevat for Xwayland clients
return;
}
auto check = [surface] (const Toplevel *t) {
return t->surfaceId() == surface->id();
};
if (Toplevel *t = ws->findToplevel(check)) {
t->setSurface(surface);
}
}
);
m_shell = m_display->createShell(m_display);
m_shell->create();
connect(m_shell, &ShellInterface::surfaceCreated, this, &WaylandServer::createSurface<ShellSurfaceInterface>);
m_xdgShell = m_display->createXdgShell(XdgShellInterfaceVersion::UnstableV5, m_display);
m_xdgShell->create();
connect(m_xdgShell, &XdgShellInterface::surfaceCreated, this, &WaylandServer::createSurface<XdgShellSurfaceInterface>);
// TODO: verify seat and serial
connect(m_xdgShell, &XdgShellInterface::popupCreated, this, &WaylandServer::createSurface<XdgShellPopupInterface>);
m_xdgShell6 = m_display->createXdgShell(XdgShellInterfaceVersion::UnstableV6, m_display);
m_xdgShell6->create();
connect(m_xdgShell6, &XdgShellInterface::surfaceCreated, this, &WaylandServer::createSurface<XdgShellSurfaceInterface>);
connect(m_xdgShell6, &XdgShellInterface::xdgPopupCreated, this, &WaylandServer::createSurface<XdgShellPopupInterface>);
m_display->createShm();
m_seat = m_display->createSeat(m_display);
m_seat->create();
m_display->createPointerGestures(PointerGesturesInterfaceVersion::UnstableV1, m_display)->create();
Implement support for pointer constraints Summary: There are two types of constraints supported: 1. Pointer confinement 2. Pointer locking In the case of confinement the pointer is confined to a given region of the surface. This is comparable to general operation where the pointer is confined to the screen region. In the second case the pointer gets locked. That means it cannot move at all. No further position updates are provided, only relative motion events can go to the application. There is a hint about cursor position update on unlock which is not yet implemented in KWayland::Server, thus also not in this change. The implementation in KWin grants the requests for pointer constraints when the pointer enters the constrained region, either by pointer movement or by e.g. stacking order changes. There is no confirmation from user required to enter that mode. But we want to show an OSD when the pointer gets constrained, this is not yet implemented, though. Breaking an active constraint is relatively easy. E.g. changing the stacking order will break the constraint if another surface is under the cursor. Also (in case of confinement) moving the pointer to an overlapping window breaks the confinement. But as soon as one moves the pointer back to the window a constraint might get honoured again. To properly break there is a dedicated event filter. It listens for a long press of the Escape key. If hold for 3sec the pointer constraint is broken and not activated again till the pointer got moved out of the window. Afterward when moving in the pointer might activate again. The escape filter ensures that the key press is forwarded to the application if it's a short press or if another key gets pressed during the three seconds. If the three seconds way fires, the later escape release is not sent to the application. This basic interaction is also ensured through an added auto test. This change implements T4605. Test Plan: Added auto test and nested KWin Wayland with D3488 Reviewers: #kwin, #plasma_on_wayland Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D3506
2016-11-25 06:17:43 +00:00
m_display->createPointerConstraints(PointerConstraintsInterfaceVersion::UnstableV1, m_display)->create();
Support for syncing the clipboard from X11 to Wayland and vice versa Summary: The clipboard sync is done by a dedicated helper binary launched by KWin. This helper binary is forced to xcb platform to piggy-back on Qt's implementation of the X11 clipboard. In addition it implements the Wayland clipboard - which is much simpler. Reading the Wayland clipboard is based on the implementation in QtWayland. KWin internally knows the DataDeviceInterface belonging to the helper application. Whenever an xwayland client is focussed, this DataDevice is allowed to set the selection and KWin manually updates the current selection in the SeatInterface. By that the sync from X11 to Wayland is implemented. When afterwards a Wayland client is selected, it's sent the current selection which references the X clipboard and a data transfer can be initiated in the normal Wayland way. For the other direction KWin sends the current selection to the helper's DataDevice whenever an xwayland window is focused. The helper application reads the Wayland clipboard and sets it on the X11 clipboard. Thus the Wayland clipboard is synced to X11. The approach used here will also be useful for implementing a clipboard manager (aka klipper). Currently the implementation is not yet fully completed. We need to make sure that the helper application gets restarted in case of a crash. Test Plan: See added test case Reviewers: #plasma_on_wayland, #kwin Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D1973
2016-06-20 09:21:16 +00:00
auto ddm = m_display->createDataDeviceManager(m_display);
ddm->create();
connect(ddm, &DataDeviceManagerInterface::dataDeviceCreated, this,
[this] (DataDeviceInterface *ddi) {
if (ddi->client() == m_xclipbaordSync.client && m_xclipbaordSync.client != nullptr) {
m_xclipbaordSync.ddi = QPointer<DataDeviceInterface>(ddi);
connect(m_xclipbaordSync.ddi.data(), &DataDeviceInterface::selectionChanged, this,
[this] {
// testing whether the active client inherits Client
// it would be better to test for the keyboard focus, but we might get a clipboard update
// when the Client is already active, but no Surface is created yet.
if (workspace()->activeClient() && workspace()->activeClient()->inherits("KWin::Client")) {
m_seat->setSelection(m_xclipbaordSync.ddi.data());
}
}
);
}
}
);
m_idle = m_display->createIdle(m_display);
m_idle->create();
auto idleInhibition = new IdleInhibition(m_idle);
connect(this, &WaylandServer::shellClientAdded, idleInhibition, &IdleInhibition::registerShellClient);
m_display->createIdleInhibitManager(IdleInhibitManagerInterfaceVersion::UnstableV1, m_display)->create();
m_plasmaShell = m_display->createPlasmaShell(m_display);
m_plasmaShell->create();
connect(m_plasmaShell, &PlasmaShellInterface::surfaceCreated,
[this] (PlasmaShellSurfaceInterface *surface) {
if (ShellClient *client = findClient(surface->surface())) {
client->installPlasmaShellSurface(surface);
} else {
m_plasmaShellSurfaces << surface;
connect(surface, &QObject::destroyed, this,
[this, surface] {
m_plasmaShellSurfaces.removeOne(surface);
}
);
}
}
);
m_qtExtendedSurface = m_display->createQtSurfaceExtension(m_display);
m_qtExtendedSurface->create();
connect(m_qtExtendedSurface, &QtSurfaceExtensionInterface::surfaceCreated,
[this] (QtExtendedSurfaceInterface *surface) {
if (ShellClient *client = findClient(surface->surface())) {
client->installQtExtendedSurface(surface);
}
}
);
m_appMenuManager = m_display->createAppMenuManagerInterface(m_display);
m_appMenuManager->create();
connect(m_appMenuManager, &AppMenuManagerInterface::appMenuCreated,
[this] (AppMenuInterface *appMenu) {
if (ShellClient *client = findClient(appMenu->surface())) {
client->installAppMenu(appMenu);
}
}
);
m_paletteManager = m_display->createServerSideDecorationPaletteManager(m_display);
m_paletteManager->create();
connect(m_paletteManager, &ServerSideDecorationPaletteManagerInterface::paletteCreated,
[this] (ServerSideDecorationPaletteInterface *palette) {
if (ShellClient *client = findClient(palette->surface())) {
client->installPalette(palette);
}
}
);
m_windowManagement = m_display->createPlasmaWindowManagement(m_display);
m_windowManagement->create();
m_windowManagement->setShowingDesktopState(PlasmaWindowManagementInterface::ShowingDesktopState::Disabled);
connect(m_windowManagement, &PlasmaWindowManagementInterface::requestChangeShowingDesktop, this,
[] (PlasmaWindowManagementInterface::ShowingDesktopState state) {
if (!workspace()) {
return;
}
bool set = false;
switch (state) {
case PlasmaWindowManagementInterface::ShowingDesktopState::Disabled:
set = false;
break;
case PlasmaWindowManagementInterface::ShowingDesktopState::Enabled:
set = true;
break;
default:
Q_UNREACHABLE();
break;
}
if (set == workspace()->showingDesktop()) {
return;
}
workspace()->setShowingDesktop(set);
}
);
auto shadowManager = m_display->createShadowManager(m_display);
shadowManager->create();
m_display->createDpmsManager(m_display)->create();
m_decorationManager = m_display->createServerSideDecorationManager(m_display);
connect(m_decorationManager, &ServerSideDecorationManagerInterface::decorationCreated, this,
[this] (ServerSideDecorationInterface *deco) {
if (ShellClient *c = findClient(deco->surface())) {
c->installServerSideDecoration(deco);
}
connect(deco, &ServerSideDecorationInterface::modeRequested, this,
[this, deco] (ServerSideDecorationManagerInterface::Mode mode) {
// always acknowledge the requested mode
deco->setMode(mode);
}
);
}
);
m_decorationManager->create();
m_outputManagement = m_display->createOutputManagement(m_display);
connect(m_outputManagement, &OutputManagementInterface::configurationChangeRequested,
this, [this](KWayland::Server::OutputConfigurationInterface *config) {
kwinApp()->platform()->configurationChangeRequested(config);
});
m_outputManagement->create();
m_display->createSubCompositor(m_display)->create();
m_XdgForeign = m_display->createXdgForeignInterface(m_display);
m_XdgForeign->create();
return true;
}
SurfaceInterface *WaylandServer::findForeignTransientForSurface(SurfaceInterface *surface)
{
return m_XdgForeign->transientFor(surface);
}
void WaylandServer::shellClientShown(Toplevel *t)
{
ShellClient *c = dynamic_cast<ShellClient*>(t);
if (!c) {
qCWarning(KWIN_CORE) << "Failed to cast a Toplevel which is supposed to be a ShellClient to ShellClient";
return;
}
disconnect(c, &ShellClient::windowShown, this, &WaylandServer::shellClientShown);
emit shellClientAdded(c);
}
void WaylandServer::initWorkspace()
{
if (m_windowManagement) {
connect(workspace(), &Workspace::showingDesktopChanged, this,
[this] (bool set) {
using namespace KWayland::Server;
m_windowManagement->setShowingDesktopState(set ?
PlasmaWindowManagementInterface::ShowingDesktopState::Enabled :
PlasmaWindowManagementInterface::ShowingDesktopState::Disabled
);
}
);
}
if (hasScreenLockerIntegration()) {
if (m_internalConnection.interfacesAnnounced) {
initScreenLocker();
} else {
connect(m_internalConnection.registry, &KWayland::Client::Registry::interfacesAnnounced, this, &WaylandServer::initScreenLocker);
}
} else {
emit initialized();
}
}
void WaylandServer::initScreenLocker()
{
ScreenLocker::KSldApp::self();
ScreenLocker::KSldApp::self()->setWaylandDisplay(m_display);
ScreenLocker::KSldApp::self()->setGreeterEnvironment(kwinApp()->processStartupEnvironment());
ScreenLocker::KSldApp::self()->initialize();
connect(ScreenLocker::KSldApp::self(), &ScreenLocker::KSldApp::greeterClientConnectionChanged, this,
[this] () {
m_screenLockerClientConnection = ScreenLocker::KSldApp::self()->greeterClientConnection();
}
);
connect(ScreenLocker::KSldApp::self(), &ScreenLocker::KSldApp::unlocked, this,
[this] () {
m_screenLockerClientConnection = nullptr;
}
);
if (m_initFlags.testFlag(InitalizationFlag::LockScreen)) {
ScreenLocker::KSldApp::self()->lock(ScreenLocker::EstablishLock::Immediate);
}
emit initialized();
}
void WaylandServer::initOutputs()
{
if (kwinApp()->platform()->handlesOutputs()) {
return;
}
syncOutputsToWayland();
connect(screens(), &Screens::changed, this,
[this] {
// when screens change we need to sync this to Wayland.
// Unfortunately we don't have much information and cannot properly match a KWin screen
// to a Wayland screen.
// Thus we just recreate all outputs and delete the old ones
const auto outputs = m_display->outputs();
syncOutputsToWayland();
qDeleteAll(outputs);
}
);
}
void WaylandServer::syncOutputsToWayland()
{
Screens *s = screens();
Q_ASSERT(s);
for (int i = 0; i < s->count(); ++i) {
OutputInterface *output = m_display->createOutput(m_display);
output->setScale(s->scale(i));
const QRect &geo = s->geometry(i);
output->setGlobalPosition(geo.topLeft());
output->setPhysicalSize(s->physicalSize(i).toSize());
output->addMode(geo.size());
output->create();
}
}
WaylandServer::SocketPairConnection WaylandServer::createConnection()
{
SocketPairConnection ret;
int sx[2];
if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sx) < 0) {
qCWarning(KWIN_CORE) << "Could not create socket";
return ret;
}
ret.connection = m_display->createClient(sx[0]);
ret.fd = sx[1];
return ret;
}
int WaylandServer::createXWaylandConnection()
{
const auto socket = createConnection();
if (!socket.connection) {
return -1;
}
m_xwayland.client = socket.connection;
m_xwayland.destroyConnection = connect(m_xwayland.client, &KWayland::Server::ClientConnection::disconnected, this,
[] {
qFatal("Xwayland Connection died");
}
);
return socket.fd;
}
void WaylandServer::destroyXWaylandConnection()
{
if (!m_xwayland.client) {
return;
}
Support for syncing the clipboard from X11 to Wayland and vice versa Summary: The clipboard sync is done by a dedicated helper binary launched by KWin. This helper binary is forced to xcb platform to piggy-back on Qt's implementation of the X11 clipboard. In addition it implements the Wayland clipboard - which is much simpler. Reading the Wayland clipboard is based on the implementation in QtWayland. KWin internally knows the DataDeviceInterface belonging to the helper application. Whenever an xwayland client is focussed, this DataDevice is allowed to set the selection and KWin manually updates the current selection in the SeatInterface. By that the sync from X11 to Wayland is implemented. When afterwards a Wayland client is selected, it's sent the current selection which references the X clipboard and a data transfer can be initiated in the normal Wayland way. For the other direction KWin sends the current selection to the helper's DataDevice whenever an xwayland window is focused. The helper application reads the Wayland clipboard and sets it on the X11 clipboard. Thus the Wayland clipboard is synced to X11. The approach used here will also be useful for implementing a clipboard manager (aka klipper). Currently the implementation is not yet fully completed. We need to make sure that the helper application gets restarted in case of a crash. Test Plan: See added test case Reviewers: #plasma_on_wayland, #kwin Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D1973
2016-06-20 09:21:16 +00:00
// first terminate the clipboard sync
if (m_xclipbaordSync.process) {
m_xclipbaordSync.process->terminate();
}
disconnect(m_xwayland.destroyConnection);
m_xwayland.client->destroy();
m_xwayland.client = nullptr;
}
int WaylandServer::createInputMethodConnection()
{
const auto socket = createConnection();
if (!socket.connection) {
return -1;
}
m_inputMethodServerConnection = socket.connection;
return socket.fd;
}
void WaylandServer::destroyInputMethodConnection()
{
if (!m_inputMethodServerConnection) {
return;
}
m_inputMethodServerConnection->destroy();
m_inputMethodServerConnection = nullptr;
}
Support for syncing the clipboard from X11 to Wayland and vice versa Summary: The clipboard sync is done by a dedicated helper binary launched by KWin. This helper binary is forced to xcb platform to piggy-back on Qt's implementation of the X11 clipboard. In addition it implements the Wayland clipboard - which is much simpler. Reading the Wayland clipboard is based on the implementation in QtWayland. KWin internally knows the DataDeviceInterface belonging to the helper application. Whenever an xwayland client is focussed, this DataDevice is allowed to set the selection and KWin manually updates the current selection in the SeatInterface. By that the sync from X11 to Wayland is implemented. When afterwards a Wayland client is selected, it's sent the current selection which references the X clipboard and a data transfer can be initiated in the normal Wayland way. For the other direction KWin sends the current selection to the helper's DataDevice whenever an xwayland window is focused. The helper application reads the Wayland clipboard and sets it on the X11 clipboard. Thus the Wayland clipboard is synced to X11. The approach used here will also be useful for implementing a clipboard manager (aka klipper). Currently the implementation is not yet fully completed. We need to make sure that the helper application gets restarted in case of a crash. Test Plan: See added test case Reviewers: #plasma_on_wayland, #kwin Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D1973
2016-06-20 09:21:16 +00:00
int WaylandServer::createXclipboardSyncConnection()
{
const auto socket = createConnection();
if (!socket.connection) {
Support for syncing the clipboard from X11 to Wayland and vice versa Summary: The clipboard sync is done by a dedicated helper binary launched by KWin. This helper binary is forced to xcb platform to piggy-back on Qt's implementation of the X11 clipboard. In addition it implements the Wayland clipboard - which is much simpler. Reading the Wayland clipboard is based on the implementation in QtWayland. KWin internally knows the DataDeviceInterface belonging to the helper application. Whenever an xwayland client is focussed, this DataDevice is allowed to set the selection and KWin manually updates the current selection in the SeatInterface. By that the sync from X11 to Wayland is implemented. When afterwards a Wayland client is selected, it's sent the current selection which references the X clipboard and a data transfer can be initiated in the normal Wayland way. For the other direction KWin sends the current selection to the helper's DataDevice whenever an xwayland window is focused. The helper application reads the Wayland clipboard and sets it on the X11 clipboard. Thus the Wayland clipboard is synced to X11. The approach used here will also be useful for implementing a clipboard manager (aka klipper). Currently the implementation is not yet fully completed. We need to make sure that the helper application gets restarted in case of a crash. Test Plan: See added test case Reviewers: #plasma_on_wayland, #kwin Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D1973
2016-06-20 09:21:16 +00:00
return -1;
}
m_xclipbaordSync.client = socket.connection;
return socket.fd;
Support for syncing the clipboard from X11 to Wayland and vice versa Summary: The clipboard sync is done by a dedicated helper binary launched by KWin. This helper binary is forced to xcb platform to piggy-back on Qt's implementation of the X11 clipboard. In addition it implements the Wayland clipboard - which is much simpler. Reading the Wayland clipboard is based on the implementation in QtWayland. KWin internally knows the DataDeviceInterface belonging to the helper application. Whenever an xwayland client is focussed, this DataDevice is allowed to set the selection and KWin manually updates the current selection in the SeatInterface. By that the sync from X11 to Wayland is implemented. When afterwards a Wayland client is selected, it's sent the current selection which references the X clipboard and a data transfer can be initiated in the normal Wayland way. For the other direction KWin sends the current selection to the helper's DataDevice whenever an xwayland window is focused. The helper application reads the Wayland clipboard and sets it on the X11 clipboard. Thus the Wayland clipboard is synced to X11. The approach used here will also be useful for implementing a clipboard manager (aka klipper). Currently the implementation is not yet fully completed. We need to make sure that the helper application gets restarted in case of a crash. Test Plan: See added test case Reviewers: #plasma_on_wayland, #kwin Subscribers: plasma-devel, kwin Tags: #plasma_on_wayland, #kwin Differential Revision: https://phabricator.kde.org/D1973
2016-06-20 09:21:16 +00:00
}
void WaylandServer::setupX11ClipboardSync()
{
if (m_xclipbaordSync.process) {
return;
}
int socket = dup(createXclipboardSyncConnection());
if (socket == -1) {
delete m_xclipbaordSync.client;
m_xclipbaordSync.client = nullptr;
return;
}
if (socket >= 0) {
QProcessEnvironment environment = kwinApp()->processStartupEnvironment();
environment.insert(QStringLiteral("WAYLAND_SOCKET"), QByteArray::number(socket));
environment.insert(QStringLiteral("DISPLAY"), QString::fromUtf8(qgetenv("DISPLAY")));
environment.remove("WAYLAND_DISPLAY");
m_xclipbaordSync.process = new Process(this);
m_xclipbaordSync.process->setProcessChannelMode(QProcess::ForwardedErrorChannel);
auto finishedSignal = static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished);
connect(m_xclipbaordSync.process, finishedSignal, this,
[this] {
m_xclipbaordSync.process->deleteLater();
m_xclipbaordSync.process = nullptr;
m_xclipbaordSync.ddi.clear();
m_xclipbaordSync.client->destroy();
m_xclipbaordSync.client = nullptr;
// TODO: restart
}
);
m_xclipbaordSync.process->setProcessEnvironment(environment);
m_xclipbaordSync.process->start(QStringLiteral(KWIN_XCLIPBOARD_SYNC_BIN));
}
}
void WaylandServer::createInternalConnection()
{
const auto socket = createConnection();
if (!socket.connection) {
return;
}
m_internalConnection.server = socket.connection;
using namespace KWayland::Client;
m_internalConnection.client = new ConnectionThread();
m_internalConnection.client->setSocketFd(socket.fd);
m_internalConnection.clientThread = new QThread;
m_internalConnection.client->moveToThread(m_internalConnection.clientThread);
m_internalConnection.clientThread->start();
connect(m_internalConnection.client, &ConnectionThread::connected, this,
[this] {
Registry *registry = new Registry(this);
EventQueue *eventQueue = new EventQueue(this);
eventQueue->setup(m_internalConnection.client);
registry->setEventQueue(eventQueue);
registry->create(m_internalConnection.client);
m_internalConnection.registry = registry;
connect(registry, &Registry::shmAnnounced, this,
[this] (quint32 name, quint32 version) {
m_internalConnection.shm = m_internalConnection.registry->createShmPool(name, version, this);
}
);
connect(registry, &Registry::interfacesAnnounced, this,
[this] {
m_internalConnection.interfacesAnnounced = true;
}
);
registry->setup();
}
);
m_internalConnection.client->initConnection();
}
void WaylandServer::removeClient(ShellClient *c)
{
m_clients.removeAll(c);
m_internalClients.removeAll(c);
emit shellClientRemoved(c);
}
void WaylandServer::dispatch()
{
if (!m_display) {
return;
}
if (m_internalConnection.server) {
m_internalConnection.server->flush();
}
m_display->dispatchEvents(0);
}
static ShellClient *findClientInList(const QList<ShellClient*> &clients, quint32 id)
{
auto it = std::find_if(clients.begin(), clients.end(),
[id] (ShellClient *c) {
return c->windowId() == id;
}
);
if (it == clients.end()) {
return nullptr;
}
return *it;
}
static ShellClient *findClientInList(const QList<ShellClient*> &clients, KWayland::Server::SurfaceInterface *surface)
{
auto it = std::find_if(clients.begin(), clients.end(),
[surface] (ShellClient *c) {
return c->surface() == surface;
}
);
if (it == clients.end()) {
return nullptr;
}
return *it;
}
ShellClient *WaylandServer::findClient(quint32 id) const
{
if (id == 0) {
return nullptr;
}
if (ShellClient *c = findClientInList(m_clients, id)) {
return c;
}
if (ShellClient *c = findClientInList(m_internalClients, id)) {
return c;
}
return nullptr;
}
ShellClient *WaylandServer::findClient(SurfaceInterface *surface) const
{
if (!surface) {
return nullptr;
}
if (ShellClient *c = findClientInList(m_clients, surface)) {
return c;
}
if (ShellClient *c = findClientInList(m_internalClients, surface)) {
return c;
}
return nullptr;
}
AbstractClient *WaylandServer::findAbstractClient(SurfaceInterface *surface) const
{
return findClient(surface);
}
ShellClient *WaylandServer::findClient(QWindow *w) const
{
if (!w) {
return nullptr;
}
auto it = std::find_if(m_internalClients.constBegin(), m_internalClients.constEnd(),
[w] (const ShellClient *c) {
return c->internalWindow() == w;
}
);
if (it != m_internalClients.constEnd()) {
return *it;
}
return nullptr;
}
quint32 WaylandServer::createWindowId(SurfaceInterface *surface)
{
auto it = m_clientIds.constFind(surface->client());
quint16 clientId = 0;
if (it != m_clientIds.constEnd()) {
clientId = it.value();
} else {
clientId = createClientId(surface->client());
}
Q_ASSERT(clientId != 0);
quint32 id = clientId;
// TODO: this does not prevent that two surfaces of same client get same id
id = (id << 16) | (surface->id() & 0xFFFF);
if (findClient(id)) {
qCWarning(KWIN_CORE) << "Invalid client windowId generated:" << id;
return 0;
}
return id;
}
quint16 WaylandServer::createClientId(ClientConnection *c)
{
auto ids = m_clientIds.values().toSet();
quint16 id = 1;
if (!ids.isEmpty()) {
for (quint16 i = ids.count() + 1; i >= 1 ; i--) {
if (!ids.contains(i)) {
id = i;
break;
}
}
}
Q_ASSERT(!ids.contains(id));
m_clientIds.insert(c, id);
connect(c, &ClientConnection::disconnected, this,
[this] (ClientConnection *c) {
m_clientIds.remove(c);
}
);
return id;
}
bool WaylandServer::isScreenLocked() const
{
if (!hasScreenLockerIntegration()) {
return false;
}
return ScreenLocker::KSldApp::self()->lockState() == ScreenLocker::KSldApp::Locked ||
ScreenLocker::KSldApp::self()->lockState() == ScreenLocker::KSldApp::AcquiringLock;
}
bool WaylandServer::hasScreenLockerIntegration() const
{
return !m_initFlags.testFlag(InitalizationFlag::NoLockScreenIntegration);
}
void WaylandServer::simulateUserActivity()
{
if (m_idle) {
m_idle->simulateUserActivity();
}
}
}