kwin/toplevel.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2006 Lubos Lunak <l.lunak@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 "toplevel.h"
#ifdef KWIN_BUILD_ACTIVITIES
#include "activities.h"
#endif
#include "atoms.h"
#include "client.h"
Improved resolving whether a window is on local machine Most windows use the hostname in WM_CLIENT_MACHINE, but there are windows using the FQDN (for example libreoffice). So instead of "foo" it is "foo.local.net" or similar. The logic so far has been unable to properly determine whether windows with FQDN are on the local system. In order to solve this problem the handling is split out into an own class which stores the information of hostname and whether it is a local machine. This is to not query multiple times. To determine whether the Client is on the local system getaddrinfo is used for the own hostname and the FQDN provided in WM_CLIENT_MACHINE. If one of the queried names matches, we know that it is on the local machine. The old logic to compare the hostname is still used and getaddrinfo is only a fallback in case hostname does not match. The problem with getaddrinfo is, that it accesses the network and by that could block. To circumvent this problem the calls are moved into threads by using QtConcurrent::run. Obviously this brings disadvantages. When trying to resolve whether a Client is on the local machine and a FQDN is used, the information is initially wrong. The new ClientMachine class emits a signal when the information that the system is local becomes available, but for some things this is just too late: * window rules are already gathered * Session Management has already taken place In both cases this is an acceptable loss. For window rules it just needs a proper matching of the machine in case of localhost (remote hosts are not affected). And the case of session management is very academic as it is unlikely that a restoring session contains remote windows. BUG: 308391 FIXED-IN: 4.11 REVIEW: 108235
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#include "client_machine.h"
#include "effects.h"
#include "screens.h"
#include "shadow.h"
#include "xcbutils.h"
#include <KWayland/Server/surface_interface.h>
#include <QDebug>
namespace KWin
{
Toplevel::Toplevel()
: m_visual(XCB_NONE)
, bit_depth(24)
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, info(NULL)
, ready_for_painting(true)
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, m_isDamaged(false)
, m_internalId(QUuid::createUuid())
, m_client()
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, damage_handle(None)
, is_shape(false)
, effect_window(NULL)
Improved resolving whether a window is on local machine Most windows use the hostname in WM_CLIENT_MACHINE, but there are windows using the FQDN (for example libreoffice). So instead of "foo" it is "foo.local.net" or similar. The logic so far has been unable to properly determine whether windows with FQDN are on the local system. In order to solve this problem the handling is split out into an own class which stores the information of hostname and whether it is a local machine. This is to not query multiple times. To determine whether the Client is on the local system getaddrinfo is used for the own hostname and the FQDN provided in WM_CLIENT_MACHINE. If one of the queried names matches, we know that it is on the local machine. The old logic to compare the hostname is still used and getaddrinfo is only a fallback in case hostname does not match. The problem with getaddrinfo is, that it accesses the network and by that could block. To circumvent this problem the calls are moved into threads by using QtConcurrent::run. Obviously this brings disadvantages. When trying to resolve whether a Client is on the local machine and a FQDN is used, the information is initially wrong. The new ClientMachine class emits a signal when the information that the system is local becomes available, but for some things this is just too late: * window rules are already gathered * Session Management has already taken place In both cases this is an acceptable loss. For window rules it just needs a proper matching of the machine in case of localhost (remote hosts are not affected). And the case of session management is very academic as it is unlikely that a restoring session contains remote windows. BUG: 308391 FIXED-IN: 4.11 REVIEW: 108235
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, m_clientMachine(new ClientMachine(this))
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, wmClientLeaderWin(0)
, m_damageReplyPending(false)
, m_screen(0)
, m_skipCloseAnimation(false)
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{
connect(this, SIGNAL(damaged(KWin::Toplevel*,QRect)), SIGNAL(needsRepaint()));
connect(screens(), SIGNAL(changed()), SLOT(checkScreen()));
connect(screens(), SIGNAL(countChanged(int,int)), SLOT(checkScreen()));
setupCheckScreenConnection();
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}
Toplevel::~Toplevel()
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{
assert(damage_handle == None);
delete info;
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}
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QDebug& operator<<(QDebug& stream, const Toplevel* cl)
{
if (cl == NULL)
return stream << "\'NULL\'";
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cl->debug(stream);
return stream;
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}
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QDebug& operator<<(QDebug& stream, const ToplevelList& list)
{
stream << "LIST:(";
bool first = true;
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for (ToplevelList::ConstIterator it = list.begin();
it != list.end();
++it) {
if (!first)
stream << ":";
first = false;
stream << *it;
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}
stream << ")";
return stream;
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}
QRect Toplevel::decorationRect() const
{
return rect();
}
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void Toplevel::detectShape(Window id)
{
const bool wasShape = is_shape;
is_shape = Xcb::Extensions::self()->hasShape(id);
if (wasShape != is_shape) {
emit shapedChanged();
}
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}
// used only by Deleted::copy()
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void Toplevel::copyToDeleted(Toplevel* c)
{
m_internalId = c->internalId();
geom = c->geom;
m_visual = c->m_visual;
bit_depth = c->bit_depth;
info = c->info;
m_client.reset(c->m_client, false);
ready_for_painting = c->ready_for_painting;
damage_handle = None;
damage_region = c->damage_region;
repaints_region = c->repaints_region;
is_shape = c->is_shape;
effect_window = c->effect_window;
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if (effect_window != NULL)
effect_window->setWindow(this);
resource_name = c->resourceName();
resource_class = c->resourceClass();
Improved resolving whether a window is on local machine Most windows use the hostname in WM_CLIENT_MACHINE, but there are windows using the FQDN (for example libreoffice). So instead of "foo" it is "foo.local.net" or similar. The logic so far has been unable to properly determine whether windows with FQDN are on the local system. In order to solve this problem the handling is split out into an own class which stores the information of hostname and whether it is a local machine. This is to not query multiple times. To determine whether the Client is on the local system getaddrinfo is used for the own hostname and the FQDN provided in WM_CLIENT_MACHINE. If one of the queried names matches, we know that it is on the local machine. The old logic to compare the hostname is still used and getaddrinfo is only a fallback in case hostname does not match. The problem with getaddrinfo is, that it accesses the network and by that could block. To circumvent this problem the calls are moved into threads by using QtConcurrent::run. Obviously this brings disadvantages. When trying to resolve whether a Client is on the local machine and a FQDN is used, the information is initially wrong. The new ClientMachine class emits a signal when the information that the system is local becomes available, but for some things this is just too late: * window rules are already gathered * Session Management has already taken place In both cases this is an acceptable loss. For window rules it just needs a proper matching of the machine in case of localhost (remote hosts are not affected). And the case of session management is very academic as it is unlikely that a restoring session contains remote windows. BUG: 308391 FIXED-IN: 4.11 REVIEW: 108235
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m_clientMachine = c->m_clientMachine;
m_clientMachine->setParent(this);
wmClientLeaderWin = c->wmClientLeader();
opaque_region = c->opaqueRegion();
m_screen = c->m_screen;
m_skipCloseAnimation = c->m_skipCloseAnimation;
m_internalFBO = c->m_internalFBO;
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}
// before being deleted, remove references to everything that's now
// owner by Deleted
void Toplevel::disownDataPassedToDeleted()
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{
info = NULL;
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}
QRect Toplevel::visibleRect() const
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{
QRect r = decorationRect();
if (hasShadow() && !shadow()->shadowRegion().isEmpty()) {
r |= shadow()->shadowRegion().boundingRect();
}
return r.translated(geometry().topLeft());
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}
Xcb::Property Toplevel::fetchWmClientLeader() const
{
return Xcb::Property(false, window(), atoms->wm_client_leader, XCB_ATOM_WINDOW, 0, 10000);
}
void Toplevel::readWmClientLeader(Xcb::Property &prop)
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{
wmClientLeaderWin = prop.value<xcb_window_t>(window());
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}
void Toplevel::getWmClientLeader()
{
auto prop = fetchWmClientLeader();
readWmClientLeader(prop);
}
/*!
Returns sessionId for this client,
taken either from its window or from the leader window.
*/
QByteArray Toplevel::sessionId() const
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{
QByteArray result = Xcb::StringProperty(window(), atoms->sm_client_id);
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if (result.isEmpty() && wmClientLeaderWin && wmClientLeaderWin != window())
result = Xcb::StringProperty(wmClientLeaderWin, atoms->sm_client_id);
return result;
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}
/*!
Returns command property for this client,
taken either from its window or from the leader window.
*/
QByteArray Toplevel::wmCommand()
{
QByteArray result = Xcb::StringProperty(window(), XCB_ATOM_WM_COMMAND);
if (result.isEmpty() && wmClientLeaderWin && wmClientLeaderWin != window())
result = Xcb::StringProperty(wmClientLeaderWin, XCB_ATOM_WM_COMMAND);
result.replace(0, ' ');
return result;
}
void Toplevel::getWmClientMachine()
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{
Improved resolving whether a window is on local machine Most windows use the hostname in WM_CLIENT_MACHINE, but there are windows using the FQDN (for example libreoffice). So instead of "foo" it is "foo.local.net" or similar. The logic so far has been unable to properly determine whether windows with FQDN are on the local system. In order to solve this problem the handling is split out into an own class which stores the information of hostname and whether it is a local machine. This is to not query multiple times. To determine whether the Client is on the local system getaddrinfo is used for the own hostname and the FQDN provided in WM_CLIENT_MACHINE. If one of the queried names matches, we know that it is on the local machine. The old logic to compare the hostname is still used and getaddrinfo is only a fallback in case hostname does not match. The problem with getaddrinfo is, that it accesses the network and by that could block. To circumvent this problem the calls are moved into threads by using QtConcurrent::run. Obviously this brings disadvantages. When trying to resolve whether a Client is on the local machine and a FQDN is used, the information is initially wrong. The new ClientMachine class emits a signal when the information that the system is local becomes available, but for some things this is just too late: * window rules are already gathered * Session Management has already taken place In both cases this is an acceptable loss. For window rules it just needs a proper matching of the machine in case of localhost (remote hosts are not affected). And the case of session management is very academic as it is unlikely that a restoring session contains remote windows. BUG: 308391 FIXED-IN: 4.11 REVIEW: 108235
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m_clientMachine->resolve(window(), wmClientLeader());
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}
/*!
Returns client machine for this client,
taken either from its window or from the leader window.
*/
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QByteArray Toplevel::wmClientMachine(bool use_localhost) const
{
Improved resolving whether a window is on local machine Most windows use the hostname in WM_CLIENT_MACHINE, but there are windows using the FQDN (for example libreoffice). So instead of "foo" it is "foo.local.net" or similar. The logic so far has been unable to properly determine whether windows with FQDN are on the local system. In order to solve this problem the handling is split out into an own class which stores the information of hostname and whether it is a local machine. This is to not query multiple times. To determine whether the Client is on the local system getaddrinfo is used for the own hostname and the FQDN provided in WM_CLIENT_MACHINE. If one of the queried names matches, we know that it is on the local machine. The old logic to compare the hostname is still used and getaddrinfo is only a fallback in case hostname does not match. The problem with getaddrinfo is, that it accesses the network and by that could block. To circumvent this problem the calls are moved into threads by using QtConcurrent::run. Obviously this brings disadvantages. When trying to resolve whether a Client is on the local machine and a FQDN is used, the information is initially wrong. The new ClientMachine class emits a signal when the information that the system is local becomes available, but for some things this is just too late: * window rules are already gathered * Session Management has already taken place In both cases this is an acceptable loss. For window rules it just needs a proper matching of the machine in case of localhost (remote hosts are not affected). And the case of session management is very academic as it is unlikely that a restoring session contains remote windows. BUG: 308391 FIXED-IN: 4.11 REVIEW: 108235
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if (!m_clientMachine) {
// this should never happen
return QByteArray();
}
if (use_localhost && m_clientMachine->isLocal()) {
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// special name for the local machine (localhost)
Improved resolving whether a window is on local machine Most windows use the hostname in WM_CLIENT_MACHINE, but there are windows using the FQDN (for example libreoffice). So instead of "foo" it is "foo.local.net" or similar. The logic so far has been unable to properly determine whether windows with FQDN are on the local system. In order to solve this problem the handling is split out into an own class which stores the information of hostname and whether it is a local machine. This is to not query multiple times. To determine whether the Client is on the local system getaddrinfo is used for the own hostname and the FQDN provided in WM_CLIENT_MACHINE. If one of the queried names matches, we know that it is on the local machine. The old logic to compare the hostname is still used and getaddrinfo is only a fallback in case hostname does not match. The problem with getaddrinfo is, that it accesses the network and by that could block. To circumvent this problem the calls are moved into threads by using QtConcurrent::run. Obviously this brings disadvantages. When trying to resolve whether a Client is on the local machine and a FQDN is used, the information is initially wrong. The new ClientMachine class emits a signal when the information that the system is local becomes available, but for some things this is just too late: * window rules are already gathered * Session Management has already taken place In both cases this is an acceptable loss. For window rules it just needs a proper matching of the machine in case of localhost (remote hosts are not affected). And the case of session management is very academic as it is unlikely that a restoring session contains remote windows. BUG: 308391 FIXED-IN: 4.11 REVIEW: 108235
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return ClientMachine::localhost();
}
Improved resolving whether a window is on local machine Most windows use the hostname in WM_CLIENT_MACHINE, but there are windows using the FQDN (for example libreoffice). So instead of "foo" it is "foo.local.net" or similar. The logic so far has been unable to properly determine whether windows with FQDN are on the local system. In order to solve this problem the handling is split out into an own class which stores the information of hostname and whether it is a local machine. This is to not query multiple times. To determine whether the Client is on the local system getaddrinfo is used for the own hostname and the FQDN provided in WM_CLIENT_MACHINE. If one of the queried names matches, we know that it is on the local machine. The old logic to compare the hostname is still used and getaddrinfo is only a fallback in case hostname does not match. The problem with getaddrinfo is, that it accesses the network and by that could block. To circumvent this problem the calls are moved into threads by using QtConcurrent::run. Obviously this brings disadvantages. When trying to resolve whether a Client is on the local machine and a FQDN is used, the information is initially wrong. The new ClientMachine class emits a signal when the information that the system is local becomes available, but for some things this is just too late: * window rules are already gathered * Session Management has already taken place In both cases this is an acceptable loss. For window rules it just needs a proper matching of the machine in case of localhost (remote hosts are not affected). And the case of session management is very academic as it is unlikely that a restoring session contains remote windows. BUG: 308391 FIXED-IN: 4.11 REVIEW: 108235
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return m_clientMachine->hostName();
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}
/*!
Returns client leader window for this client.
Returns the client window itself if no leader window is defined.
*/
Window Toplevel::wmClientLeader() const
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{
if (wmClientLeaderWin)
return wmClientLeaderWin;
return window();
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}
void Toplevel::getResourceClass()
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{
setResourceClass(QByteArray(info->windowClassName()).toLower(), QByteArray(info->windowClassClass()).toLower());
}
void Toplevel::setResourceClass(const QByteArray &name, const QByteArray &className)
{
resource_name = name;
resource_class = className;
emit windowClassChanged();
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}
double Toplevel::opacity() const
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{
if (info->opacity() == 0xffffffff)
return 1.0;
return info->opacity() * 1.0 / 0xffffffff;
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}
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void Toplevel::setOpacity(double new_opacity)
{
double old_opacity = opacity();
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new_opacity = qBound(0.0, new_opacity, 1.0);
if (old_opacity == new_opacity)
return;
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info->setOpacity(static_cast< unsigned long >(new_opacity * 0xffffffff));
if (compositing()) {
addRepaintFull();
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emit opacityChanged(this, old_opacity);
}
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}
void Toplevel::setReadyForPainting()
{
if (!ready_for_painting) {
ready_for_painting = true;
if (compositing()) {
addRepaintFull();
emit windowShown(this);
if (Client *cl = dynamic_cast<Client*>(this)) {
if (cl->tabGroup() && cl->tabGroup()->current() == cl)
cl->tabGroup()->setCurrent(cl, true);
}
}
}
}
void Toplevel::deleteEffectWindow()
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{
delete effect_window;
effect_window = NULL;
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}
void Toplevel::checkScreen()
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{
if (screens()->count() == 1) {
if (m_screen != 0) {
m_screen = 0;
emit screenChanged();
}
} else {
const int s = screens()->number(geometry().center());
if (s != m_screen) {
m_screen = s;
emit screenChanged();
}
}
qreal newScale = screens()->scale(m_screen);
if (newScale != m_screenScale) {
m_screenScale = newScale;
emit screenScaleChanged();
}
}
void Toplevel::setupCheckScreenConnection()
{
connect(this, SIGNAL(geometryShapeChanged(KWin::Toplevel*,QRect)), SLOT(checkScreen()));
connect(this, SIGNAL(geometryChanged()), SLOT(checkScreen()));
checkScreen();
}
void Toplevel::removeCheckScreenConnection()
{
disconnect(this, SIGNAL(geometryShapeChanged(KWin::Toplevel*,QRect)), this, SLOT(checkScreen()));
disconnect(this, SIGNAL(geometryChanged()), this, SLOT(checkScreen()));
}
int Toplevel::screen() const
{
return m_screen;
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}
qreal Toplevel::screenScale() const
{
return m_screenScale;
}
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bool Toplevel::isOnScreen(int screen) const
{
return screens()->geometry(screen).intersects(geometry());
}
bool Toplevel::isOnActiveScreen() const
{
return isOnScreen(screens()->current());
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}
void Toplevel::getShadow()
{
QRect dirtyRect; // old & new shadow region
const QRect oldVisibleRect = visibleRect();
if (hasShadow()) {
dirtyRect = shadow()->shadowRegion().boundingRect();
if (!effectWindow()->sceneWindow()->shadow()->updateShadow()) {
effectWindow()->sceneWindow()->updateShadow(nullptr);
}
emit shadowChanged();
} else {
Shadow::createShadow(this);
}
if (hasShadow())
dirtyRect |= shadow()->shadowRegion().boundingRect();
if (oldVisibleRect != visibleRect())
emit paddingChanged(this, oldVisibleRect);
if (dirtyRect.isValid()) {
dirtyRect.translate(pos());
addLayerRepaint(dirtyRect);
}
}
bool Toplevel::hasShadow() const
{
if (effectWindow() && effectWindow()->sceneWindow()) {
return effectWindow()->sceneWindow()->shadow() != NULL;
}
return false;
}
Shadow *Toplevel::shadow()
{
if (effectWindow() && effectWindow()->sceneWindow()) {
return effectWindow()->sceneWindow()->shadow();
} else {
return NULL;
}
}
const Shadow *Toplevel::shadow() const
{
if (effectWindow() && effectWindow()->sceneWindow()) {
return effectWindow()->sceneWindow()->shadow();
} else {
return NULL;
}
}
bool Toplevel::wantsShadowToBeRendered() const
{
return true;
}
void Toplevel::getWmOpaqueRegion()
{
const auto rects = info->opaqueRegion();
QRegion new_opaque_region;
for (const auto &r : rects) {
new_opaque_region += QRect(r.pos.x, r.pos.y, r.size.width, r.size.height);
}
opaque_region = new_opaque_region;
}
bool Toplevel::isClient() const
{
return false;
}
bool Toplevel::isDeleted() const
{
return false;
}
bool Toplevel::isOnCurrentActivity() const
{
#ifdef KWIN_BUILD_ACTIVITIES
if (!Activities::self()) {
return true;
}
return isOnActivity(Activities::self()->current());
#else
return true;
#endif
}
void Toplevel::elevate(bool elevate)
{
if (!effectWindow()) {
return;
}
effectWindow()->elevate(elevate);
addWorkspaceRepaint(visibleRect());
}
pid_t Toplevel::pid() const
{
return info->pid();
}
xcb_window_t Toplevel::frameId() const
{
return m_client;
}
Xcb::Property Toplevel::fetchSkipCloseAnimation() const
{
return Xcb::Property(false, window(), atoms->kde_skip_close_animation, XCB_ATOM_CARDINAL, 0, 1);
}
void Toplevel::readSkipCloseAnimation(Xcb::Property &property)
{
setSkipCloseAnimation(property.toBool());
}
void Toplevel::getSkipCloseAnimation()
{
Xcb::Property property = fetchSkipCloseAnimation();
readSkipCloseAnimation(property);
}
bool Toplevel::skipsCloseAnimation() const
{
return m_skipCloseAnimation;
}
void Toplevel::setSkipCloseAnimation(bool set)
{
if (set == m_skipCloseAnimation) {
return;
}
m_skipCloseAnimation = set;
emit skipCloseAnimationChanged();
}
void Toplevel::setSurface(KWayland::Server::SurfaceInterface *surface)
{
if (m_surface == surface) {
return;
}
using namespace KWayland::Server;
if (m_surface) {
disconnect(m_surface, &SurfaceInterface::damaged, this, &Toplevel::addDamage);
disconnect(m_surface, &SurfaceInterface::sizeChanged, this, &Toplevel::discardWindowPixmap);
}
m_surface = surface;
connect(m_surface, &SurfaceInterface::damaged, this, &Toplevel::addDamage);
connect(m_surface, &SurfaceInterface::sizeChanged, this, &Toplevel::discardWindowPixmap);
connect(m_surface, &SurfaceInterface::subSurfaceTreeChanged, this,
[this] {
// TODO improve to only update actual visual area
if (ready_for_painting) {
addDamageFull();
m_isDamaged = true;
}
}
);
connect(m_surface, &SurfaceInterface::destroyed, this,
[this] {
m_surface = nullptr;
}
);
emit surfaceChanged();
}
void Toplevel::addDamage(const QRegion &damage)
{
m_isDamaged = true;
damage_region += damage;
for (const QRect &r : damage.rects()) {
emit damaged(this, r);
}
}
QByteArray Toplevel::windowRole() const
{
return QByteArray(info->windowRole());
}
void Toplevel::setDepth(int depth)
{
if (bit_depth == depth) {
return;
}
const bool oldAlpha = hasAlpha();
bit_depth = depth;
if (oldAlpha != hasAlpha()) {
emit hasAlphaChanged();
}
}
QRegion Toplevel::inputShape() const
{
if (m_surface) {
return m_surface->input();
} else {
// TODO: maybe also for X11?
return QRegion();
}
}
void Toplevel::setInternalFramebufferObject(const QSharedPointer<QOpenGLFramebufferObject> &fbo)
{
if (m_internalFBO != fbo) {
discardWindowPixmap();
m_internalFBO = fbo;
}
setDepth(32);
}
QMatrix4x4 Toplevel::inputTransformation() const
{
QMatrix4x4 m;
m.translate(-x(), -y());
return m;
}
quint32 Toplevel::windowId() const
{
return window();
}
QRect Toplevel::inputGeometry() const
{
return geometry();
}
} // namespace