kwin/shell_client.cpp
Martin Gräßlin df1146bfa6 [wayland] Shadow gains support for a Wayland protocol
For Wayland clients we now are able to get shadows.

Internally this reuses large parts of the X11 implementation. This
could be improved to make the Scene's better aware of the Wayland
shadow, so that less memory is needed.
2015-07-15 11:25:16 +02:00

682 lines
17 KiB
C++

/********************************************************************
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 "shell_client.h"
#include "composite.h"
#include "deleted.h"
#include "screens.h"
#include "wayland_server.h"
#include "workspace.h"
#include "virtualdesktops.h"
#include "workspace.h"
#include <KWayland/Client/surface.h>
#include <KWayland/Server/shell_interface.h>
#include <KWayland/Server/surface_interface.h>
#include <KWayland/Server/buffer_interface.h>
#include <KWayland/Server/plasmashell_interface.h>
#include <KWayland/Server/shadow_interface.h>
#include <KWayland/Server/qtsurfaceextension_interface.h>
#include <KDesktopFile>
#include <QWindow>
using namespace KWayland::Server;
namespace KWin
{
ShellClient::ShellClient(ShellSurfaceInterface *surface)
: AbstractClient()
, m_shellSurface(surface)
{
setSurface(surface->surface());
findInternalWindow();
createWindowId();
setupCompositing();
if (surface->surface()->buffer()) {
setReadyForPainting();
setupWindowManagementInterface();
m_unmapped = false;
m_clientSize = surface->surface()->buffer()->size();
} else {
ready_for_painting = false;
}
if (m_internalWindow) {
updateInternalWindowGeometry();
setOnAllDesktops(true);
} else {
setGeometry(QRect(QPoint(0, 0), m_clientSize));
setDesktop(VirtualDesktopManager::self()->current());
}
if (waylandServer()->inputMethodConnection() == m_shellSurface->client()) {
m_windowType = NET::OnScreenDisplay;
}
connect(surface->surface(), &SurfaceInterface::sizeChanged, this,
[this] {
m_clientSize = m_shellSurface->surface()->buffer()->size();
setGeometry(QRect(geom.topLeft(), m_clientSize));
discardWindowPixmap();
}
);
connect(surface, &ShellSurfaceInterface::destroyed, this, &ShellClient::destroyClient);
connect(surface->surface(), &SurfaceInterface::unmapped, this, &ShellClient::unmap);
connect(surface, &ShellSurfaceInterface::titleChanged, this, &ShellClient::captionChanged);
connect(surface, &ShellSurfaceInterface::fullscreenChanged, this, &ShellClient::clientFullScreenChanged);
connect(surface, &ShellSurfaceInterface::maximizedChanged, this,
[this] (bool maximized) {
maximize(maximized ? MaximizeFull : MaximizeRestore);
}
);
connect(surface, &ShellSurfaceInterface::windowClassChanged, this, &ShellClient::updateIcon);
updateIcon();
// setup shadow integration
getShadow();
connect(surface->surface(), &SurfaceInterface::shadowChanged, this, &Toplevel::getShadow);
}
ShellClient::~ShellClient() = default;
void ShellClient::destroyClient()
{
m_closing = true;
Deleted *del = Deleted::create(this);
emit windowClosed(this, del);
waylandServer()->removeClient(this);
del->unrefWindow();
m_shellSurface = nullptr;
deleteClient(this);
}
void ShellClient::deleteClient(ShellClient *c)
{
delete c;
}
QStringList ShellClient::activities() const
{
// TODO: implement
return QStringList();
}
QPoint ShellClient::clientPos() const
{
return QPoint(0, 0);
}
QSize ShellClient::clientSize() const
{
// TODO: connect for changes
return m_clientSize;
}
void ShellClient::debug(QDebug &stream) const
{
// TODO: implement
Q_UNUSED(stream)
}
Layer ShellClient::layer() const
{
// TODO: implement the rest
if (isDesktop())
return workspace()->showingDesktop() ? AboveLayer : DesktopLayer;
if (isDock()) {
if (workspace()->showingDesktop())
return NotificationLayer;
if (m_plasmaShellSurface) {
switch (m_plasmaShellSurface->panelBehavior()) {
case PlasmaShellSurfaceInterface::PanelBehavior::WindowsCanCover:
return NormalLayer;
case PlasmaShellSurfaceInterface::PanelBehavior::AutoHide:
return AboveLayer;
case PlasmaShellSurfaceInterface::PanelBehavior::WindowsGoBelow:
case PlasmaShellSurfaceInterface::PanelBehavior::AlwaysVisible:
return DockLayer;
default:
Q_UNREACHABLE();
break;
}
}
// slight hack for the 'allow window to cover panel' Kicker setting
// don't move keepbelow docks below normal window, but only to the same
// layer, so that both may be raised to cover the other
if (keepBelow())
return NormalLayer;
if (keepAbove()) // slight hack for the autohiding panels
return AboveLayer;
return DockLayer;
}
if (isOnScreenDisplay())
return OnScreenDisplayLayer;
if (isFullScreen() && isActive())
return ActiveLayer;
return KWin::NormalLayer;
}
bool ShellClient::shouldUnredirect() const
{
// TODO: unredirect for fullscreen
return false;
}
QRect ShellClient::transparentRect() const
{
// TODO: implement
return QRect();
}
NET::WindowType ShellClient::windowType(bool direct, int supported_types) const
{
// TODO: implement
Q_UNUSED(direct)
Q_UNUSED(supported_types)
return m_windowType;
}
double ShellClient::opacity() const
{
return 1.0;
}
void ShellClient::setOpacity(double opacity)
{
Q_UNUSED(opacity)
}
void ShellClient::addDamage(const QRegion &damage)
{
if (m_shellSurface->surface()->buffer()->size().isValid()) {
m_clientSize = m_shellSurface->surface()->buffer()->size();
QPoint position = geom.topLeft();
if (m_positionAfterResize.isValid()) {
addLayerRepaint(geometry());
position = m_positionAfterResize.point();
m_positionAfterResize.clear();
}
setGeometry(QRect(position, m_clientSize));
}
markAsUnmapped();
setDepth(m_shellSurface->surface()->buffer()->hasAlphaChannel() ? 32 : 24);
Toplevel::addDamage(damage);
}
void ShellClient::markAsUnmapped()
{
if (!m_unmapped) {
return;
}
m_unmapped = false;
setReadyForPainting();
setupWindowManagementInterface();
}
void ShellClient::setGeometry(const QRect &rect)
{
if (geom == rect) {
return;
}
const QRect old = geom;
geom = rect;
emit geometryChanged();
emit geometryShapeChanged(this, old);
}
QByteArray ShellClient::windowRole() const
{
return QByteArray();
}
bool ShellClient::belongsToSameApplication(const AbstractClient *other, bool active_hack) const
{
Q_UNUSED(active_hack)
if (auto s = other->surface()) {
return s->client() == surface()->client();
}
return false;
}
void ShellClient::blockActivityUpdates(bool b)
{
Q_UNUSED(b)
}
QString ShellClient::caption(bool full, bool stripped) const
{
Q_UNUSED(full)
Q_UNUSED(stripped)
return m_shellSurface->title();
}
void ShellClient::checkWorkspacePosition(QRect oldGeometry, int oldDesktop, QRect oldClientGeometry)
{
Q_UNUSED(oldGeometry)
Q_UNUSED(oldDesktop)
Q_UNUSED(oldClientGeometry)
}
void ShellClient::closeWindow()
{
if (m_qtExtendedSurface && isCloseable()) {
m_qtExtendedSurface->close();
}
}
AbstractClient *ShellClient::findModal(bool allow_itself)
{
Q_UNUSED(allow_itself)
return nullptr;
}
bool ShellClient::isCloseable() const
{
if (m_windowType == NET::Desktop || m_windowType == NET::Dock) {
return false;
}
return m_qtExtendedSurface ? true : false;
}
bool ShellClient::isFullScreenable() const
{
return false;
}
bool ShellClient::isFullScreen() const
{
return m_shellSurface->isFullscreen();
}
bool ShellClient::isMaximizable() const
{
return true;
}
bool ShellClient::isMinimizable() const
{
return false;
}
bool ShellClient::isMovable() const
{
return false;
}
bool ShellClient::isMovableAcrossScreens() const
{
return false;
}
bool ShellClient::isResizable() const
{
return false;
}
bool ShellClient::isShown(bool shaded_is_shown) const
{
Q_UNUSED(shaded_is_shown)
return !m_closing && !m_unmapped;
}
void ShellClient::hideClient(bool hide)
{
Q_UNUSED(hide)
}
void ShellClient::maximize(MaximizeMode mode)
{
if (m_maximizeMode == mode) {
return;
}
// TODO: check rules
StackingUpdatesBlocker blocker(workspace());
const MaximizeMode oldMode = m_maximizeMode;
m_maximizeMode = mode;
if (m_maximizeMode == MaximizeFull) {
m_geomMaximizeRestore = geometry();
requestGeometry(workspace()->clientArea(MaximizeArea, this));
workspace()->raiseClient(this);
} else {
if (m_geomMaximizeRestore.isValid()) {
requestGeometry(m_geomMaximizeRestore);
} else {
requestGeometry(workspace()->clientArea(PlacementArea, this));
}
}
if (oldMode != maximizeMode()) {
emit clientMaximizedStateChanged(this, m_maximizeMode);
const bool set = m_maximizeMode == MaximizeFull;
emit clientMaximizedStateChanged(this, set, set);
}
}
MaximizeMode ShellClient::maximizeMode() const
{
return m_maximizeMode;
}
bool ShellClient::noBorder() const
{
return true;
}
const WindowRules *ShellClient::rules() const
{
static WindowRules s_rules;
return &s_rules;
}
void ShellClient::sendToScreen(int screen)
{
Q_UNUSED(screen)
}
void ShellClient::setFullScreen(bool set, bool user)
{
Q_UNUSED(set)
Q_UNUSED(user)
}
void ShellClient::setNoBorder(bool set)
{
Q_UNUSED(set)
}
void ShellClient::setOnAllActivities(bool set)
{
Q_UNUSED(set)
}
void ShellClient::setQuickTileMode(AbstractClient::QuickTileMode mode, bool keyboard)
{
Q_UNUSED(mode)
Q_UNUSED(keyboard)
}
void ShellClient::setShortcut(const QString &cut)
{
Q_UNUSED(cut)
}
const QKeySequence &ShellClient::shortcut() const
{
static QKeySequence seq;
return seq;
}
void ShellClient::takeFocus()
{
if (rules()->checkAcceptFocus(wantsInput())) {
setActive(true);
}
bool breakShowingDesktop = !keepAbove() && !isOnScreenDisplay();
if (breakShowingDesktop) {
// check that it doesn't belong to the desktop
const auto &clients = waylandServer()->clients();
for (auto c: clients) {
if (!belongsToSameApplication(c, false)) {
continue;
}
if (c->isDesktop()) {
breakShowingDesktop = false;
break;
}
}
}
if (breakShowingDesktop)
workspace()->setShowingDesktop(false);
}
void ShellClient::doSetActive()
{
StackingUpdatesBlocker blocker(workspace());
workspace()->focusToNull();
}
void ShellClient::updateWindowRules(Rules::Types selection)
{
Q_UNUSED(selection)
}
bool ShellClient::userCanSetFullScreen() const
{
return false;
}
bool ShellClient::userCanSetNoBorder() const
{
return false;
}
bool ShellClient::wantsInput() const
{
if (isInternal()) {
return false;
}
if (waylandServer()->inputMethodConnection() == m_shellSurface->client()) {
return false;
}
// if the window is not visible it doesn't get input
return isShown(true);
}
void ShellClient::createWindowId()
{
if (m_internalWindow) {
m_windowId = m_internalWindow->winId();
} else {
m_windowId = waylandServer()->createWindowId(m_shellSurface->surface());
}
}
void ShellClient::findInternalWindow()
{
if (m_shellSurface->client() != waylandServer()->qtConnection()) {
return;
}
const QWindowList windows = kwinApp()->topLevelWindows();
for (QWindow *w: windows) {
QScopedPointer<KWayland::Client::Surface> s(KWayland::Client::Surface::fromWindow(w));
if (!s) {
continue;
}
if (s->id() != surface()->id()) {
continue;
}
m_internalWindow = w;
connect(m_internalWindow, &QWindow::xChanged, this, &ShellClient::updateInternalWindowGeometry);
connect(m_internalWindow, &QWindow::yChanged, this, &ShellClient::updateInternalWindowGeometry);
// Try reading the window type from the QWindow. PlasmaCore.Dialog provides a dynamic type property
// let's check whether it exists, if it does it's our window type
const QVariant windowType = m_internalWindow->property("type");
if (!windowType.isNull()) {
m_windowType = static_cast<NET::WindowType>(windowType.toInt());
}
return;
}
}
void ShellClient::updateInternalWindowGeometry()
{
if (!m_internalWindow) {
return;
}
setGeometry(m_internalWindow->geometry());
}
bool ShellClient::isInternal() const
{
return m_shellSurface->client() == waylandServer()->internalConnection() ||
m_shellSurface->client() == waylandServer()->qtConnection();
}
xcb_window_t ShellClient::window() const
{
return windowId();
}
void ShellClient::requestGeometry(const QRect &rect)
{
m_positionAfterResize.setPoint(rect.topLeft());
m_shellSurface->requestSize(rect.size());
}
void ShellClient::clientFullScreenChanged(bool fullScreen)
{
StackingUpdatesBlocker blocker(workspace());
workspace()->updateClientLayer(this); // active fullscreens get different layer
if (fullScreen) {
m_geomFsRestore = geometry();
requestGeometry(workspace()->clientArea(FullScreenArea, this));
workspace()->raiseClient(this);
} else {
if (m_geomFsRestore.isValid()) {
requestGeometry(m_geomFsRestore);
} else {
requestGeometry(workspace()->clientArea(MaximizeArea, this));
}
}
}
void ShellClient::move(int x, int y, ForceGeometry_t force)
{
QPoint p(x, y);
if (force == NormalGeometrySet && geom.topLeft() == p) {
return;
}
const QRect oldGeom = visibleRect();
geom.moveTopLeft(p);
updateWindowRules(Rules::Position);
screens()->setCurrent(this);
workspace()->updateStackingOrder();
if (Compositor::isCreated()) {
// TODO: is this really needed here?
Compositor::self()->checkUnredirect();
}
addLayerRepaint(oldGeom);
addLayerRepaint(visibleRect());
emit geometryChanged();
}
void ShellClient::resizeWithChecks(int w, int h, ForceGeometry_t force)
{
Q_UNUSED(force)
QRect area = workspace()->clientArea(WorkArea, this);
// don't allow growing larger than workarea
if (w > area.width()) {
w = area.width();
}
if (h > area.height()) {
h = area.height();
}
m_shellSurface->requestSize(QSize(w, h));
}
void ShellClient::unmap()
{
m_unmapped = true;
ready_for_painting = false;
destroyWindowManagementInterface();
addWorkspaceRepaint(visibleRect());
workspace()->clientHidden(this);
emit windowHidden(this);
}
void ShellClient::installPlasmaShellSurface(PlasmaShellSurfaceInterface *surface)
{
m_plasmaShellSurface = surface;
auto updatePosition = [this, surface] {
setGeometry(QRect(surface->position(), m_clientSize));
};
auto updateRole = [this, surface] {
NET::WindowType type = NET::Unknown;
switch (surface->role()) {
case PlasmaShellSurfaceInterface::Role::Desktop:
type = NET::Desktop;
break;
case PlasmaShellSurfaceInterface::Role::Panel:
type = NET::Dock;
break;
case PlasmaShellSurfaceInterface::Role::Normal:
default:
type = NET::Normal;
break;
}
if (type != m_windowType) {
m_windowType = type;
workspace()->updateClientArea();
}
};
connect(surface, &PlasmaShellSurfaceInterface::positionChanged, this, updatePosition);
connect(surface, &PlasmaShellSurfaceInterface::roleChanged, this, updateRole);
connect(surface, &PlasmaShellSurfaceInterface::panelBehaviorChanged, this,
[] {
workspace()->updateClientArea();
}
);
updatePosition();
updateRole();
}
bool ShellClient::isInitialPositionSet() const
{
if (m_plasmaShellSurface) {
return m_plasmaShellSurface->isPositionSet();
}
return false;
}
void ShellClient::installQtExtendedSurface(QtExtendedSurfaceInterface *surface)
{
m_qtExtendedSurface = surface;
}
bool ShellClient::hasStrut() const
{
if (!isShown(true)) {
return false;
}
if (!m_plasmaShellSurface) {
return false;
}
if (m_plasmaShellSurface->role() != PlasmaShellSurfaceInterface::Role::Panel) {
return false;
}
return m_plasmaShellSurface->panelBehavior() != PlasmaShellSurfaceInterface::PanelBehavior::WindowsGoBelow;
}
void ShellClient::updateIcon()
{
if (m_shellSurface->windowClass().isEmpty()) {
setIcon(QIcon());
}
KDesktopFile df(QStringLiteral("%0.desktop").arg(QString::fromUtf8(m_shellSurface->windowClass())));
setIcon(QIcon::fromTheme(df.readIcon()));
}
}