kwin/effects/slidingpopups/slidingpopups.cpp
Vlad Zahorodnii b2792ae3cd effects/slidingpopups: Properly clip windows
The region that we pass to the next paintWindow() cannot be larger than
the one that we've received. If an effect passes a larger region, the
tracked buffer damage will be messed up and user will see all sorts of
visual artifacts.
2020-09-01 06:12:39 +00:00

531 lines
17 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2009 Marco Martin notmart @gmail.com
SPDX-FileCopyrightText: 2018 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "slidingpopups.h"
#include "slidingpopupsconfig.h"
#include <QApplication>
#include <QFontMetrics>
#include <QWindow>
#include <KWaylandServer/surface_interface.h>
#include <KWaylandServer/slide_interface.h>
#include <KWaylandServer/display.h>
#include <KWindowEffects>
Q_DECLARE_METATYPE(KWindowEffects::SlideFromLocation)
namespace KWin
{
SlidingPopupsEffect::SlidingPopupsEffect()
{
initConfig<SlidingPopupsConfig>();
KWaylandServer::Display *display = effects->waylandDisplay();
if (display) {
display->createSlideManager(this)->create();
}
m_slideLength = QFontMetrics(qApp->font()).height() * 8;
m_atom = effects->announceSupportProperty("_KDE_SLIDE", this);
connect(effects, &EffectsHandler::windowAdded, this, &SlidingPopupsEffect::slotWindowAdded);
connect(effects, &EffectsHandler::windowClosed, this, &SlidingPopupsEffect::slideOut);
connect(effects, &EffectsHandler::windowDeleted, this, &SlidingPopupsEffect::slotWindowDeleted);
connect(effects, &EffectsHandler::propertyNotify, this, &SlidingPopupsEffect::slotPropertyNotify);
connect(effects, &EffectsHandler::xcbConnectionChanged, this,
[this] {
m_atom = effects->announceSupportProperty(QByteArrayLiteral("_KDE_SLIDE"), this);
}
);
connect(effects, qOverload<int, int, EffectWindow *>(&EffectsHandler::desktopChanged),
this, &SlidingPopupsEffect::stopAnimations);
connect(effects, &EffectsHandler::activeFullScreenEffectChanged,
this, &SlidingPopupsEffect::stopAnimations);
reconfigure(ReconfigureAll);
}
SlidingPopupsEffect::~SlidingPopupsEffect()
{
}
bool SlidingPopupsEffect::supported()
{
return effects->animationsSupported();
}
void SlidingPopupsEffect::reconfigure(ReconfigureFlags flags)
{
Q_UNUSED(flags)
SlidingPopupsConfig::self()->read();
m_slideInDuration = std::chrono::milliseconds(
static_cast<int>(animationTime(SlidingPopupsConfig::slideInTime() != 0 ? SlidingPopupsConfig::slideInTime() : 150)));
m_slideOutDuration = std::chrono::milliseconds(
static_cast<int>(animationTime(SlidingPopupsConfig::slideOutTime() != 0 ? SlidingPopupsConfig::slideOutTime() : 250)));
auto animationIt = m_animations.begin();
while (animationIt != m_animations.end()) {
const auto duration = ((*animationIt).kind == AnimationKind::In)
? m_slideInDuration
: m_slideOutDuration;
(*animationIt).timeLine.setDuration(duration);
++animationIt;
}
auto dataIt = m_animationsData.begin();
while (dataIt != m_animationsData.end()) {
(*dataIt).slideInDuration = m_slideInDuration;
(*dataIt).slideOutDuration = m_slideOutDuration;
++dataIt;
}
}
void SlidingPopupsEffect::prePaintWindow(EffectWindow *w, WindowPrePaintData &data, int time)
{
auto animationIt = m_animations.find(w);
if (animationIt == m_animations.end()) {
effects->prePaintWindow(w, data, time);
return;
}
(*animationIt).timeLine.update(std::chrono::milliseconds(time));
data.setTransformed();
w->enablePainting(EffectWindow::PAINT_DISABLED | EffectWindow::PAINT_DISABLED_BY_DELETE);
effects->prePaintWindow(w, data, time);
}
void SlidingPopupsEffect::paintWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data)
{
auto animationIt = m_animations.constFind(w);
if (animationIt == m_animations.constEnd()) {
effects->paintWindow(w, mask, region, data);
return;
}
const AnimationData &animData = m_animationsData[w];
const int slideLength = (animData.slideLength > 0) ? animData.slideLength : m_slideLength;
const QRect screenRect = effects->clientArea(FullScreenArea, w->screen(), effects->currentDesktop());
int splitPoint = 0;
const QRect geo = w->expandedGeometry();
const qreal t = (*animationIt).timeLine.value();
switch (animData.location) {
case Location::Left:
if (slideLength < geo.width()) {
data.multiplyOpacity(t);
}
data.translate(-interpolate(qMin(geo.width(), slideLength), 0.0, t));
splitPoint = geo.width() - (geo.x() + geo.width() - screenRect.x() - animData.offset);
region &= QRegion(geo.x() + splitPoint, geo.y(), geo.width() - splitPoint, geo.height());
break;
case Location::Top:
if (slideLength < geo.height()) {
data.multiplyOpacity(t);
}
data.translate(0.0, -interpolate(qMin(geo.height(), slideLength), 0.0, t));
splitPoint = geo.height() - (geo.y() + geo.height() - screenRect.y() - animData.offset);
region &= QRegion(geo.x(), geo.y() + splitPoint, geo.width(), geo.height() - splitPoint);
break;
case Location::Right:
if (slideLength < geo.width()) {
data.multiplyOpacity(t);
}
data.translate(interpolate(qMin(geo.width(), slideLength), 0.0, t));
splitPoint = screenRect.x() + screenRect.width() - geo.x() - animData.offset;
region &= QRegion(geo.x(), geo.y(), splitPoint, geo.height());
break;
case Location::Bottom:
default:
if (slideLength < geo.height()) {
data.multiplyOpacity(t);
}
data.translate(0.0, interpolate(qMin(geo.height(), slideLength), 0.0, t));
splitPoint = screenRect.y() + screenRect.height() - geo.y() - animData.offset;
region &= QRegion(geo.x(), geo.y(), geo.width(), splitPoint);
}
effects->paintWindow(w, mask, region, data);
}
void SlidingPopupsEffect::postPaintWindow(EffectWindow *w)
{
auto animationIt = m_animations.find(w);
if (animationIt != m_animations.end()) {
if ((*animationIt).timeLine.done()) {
if (w->isDeleted()) {
w->unrefWindow();
} else {
w->setData(WindowForceBackgroundContrastRole, QVariant());
w->setData(WindowForceBlurRole, QVariant());
}
m_animations.erase(animationIt);
}
w->addRepaintFull();
}
effects->postPaintWindow(w);
}
void SlidingPopupsEffect::slotWindowAdded(EffectWindow *w)
{
//X11
if (m_atom != XCB_ATOM_NONE) {
slotPropertyNotify(w, m_atom);
}
//Wayland
if (auto surf = w->surface()) {
slotWaylandSlideOnShowChanged(w);
connect(surf, &KWaylandServer::SurfaceInterface::slideOnShowHideChanged, this, [this, surf] {
slotWaylandSlideOnShowChanged(effects->findWindow(surf));
});
}
if (auto internal = w->internalWindow()) {
internal->installEventFilter(this);
setupInternalWindowSlide(w);
}
slideIn(w);
}
void SlidingPopupsEffect::slotWindowDeleted(EffectWindow *w)
{
m_animations.remove(w);
m_animationsData.remove(w);
}
void SlidingPopupsEffect::slotPropertyNotify(EffectWindow *w, long atom)
{
if (!w || atom != m_atom || m_atom == XCB_ATOM_NONE) {
return;
}
// _KDE_SLIDE atom format(each field is an uint32_t):
// <offset> <location> [<slide in duration>] [<slide out duration>] [<slide length>]
//
// If offset is equal to -1, this effect will decide what offset to use
// given edge of the screen, from which the window has to slide.
//
// If slide in duration is equal to 0 milliseconds, the default slide in
// duration will be used. Same with the slide out duration.
//
// NOTE: If only slide in duration has been provided, then it will be
// also used as slide out duration. I.e. if you provided only slide in
// duration, then slide in duration == slide out duration.
const QByteArray rawAtomData = w->readProperty(m_atom, m_atom, 32);
if (rawAtomData.isEmpty()) {
// Property was removed, thus also remove the effect for window
if (w->data(WindowClosedGrabRole).value<void *>() == this) {
w->setData(WindowClosedGrabRole, QVariant());
}
m_animations.remove(w);
m_animationsData.remove(w);
return;
}
// Offset and location are required.
if (static_cast<size_t>(rawAtomData.size()) < sizeof(uint32_t) * 2) {
return;
}
const auto *atomData = reinterpret_cast<const uint32_t *>(rawAtomData.data());
AnimationData &animData = m_animationsData[w];
animData.offset = atomData[0];
switch (atomData[1]) {
case 0: // West
animData.location = Location::Left;
break;
case 1: // North
animData.location = Location::Top;
break;
case 2: // East
animData.location = Location::Right;
break;
case 3: // South
default:
animData.location = Location::Bottom;
break;
}
if (static_cast<size_t>(rawAtomData.size()) >= sizeof(uint32_t) * 3) {
animData.slideInDuration = std::chrono::milliseconds(atomData[2]);
if (static_cast<size_t>(rawAtomData.size()) >= sizeof(uint32_t) * 4) {
animData.slideOutDuration = std::chrono::milliseconds(atomData[3]);
} else {
animData.slideOutDuration = animData.slideInDuration;
}
} else {
animData.slideInDuration = m_slideInDuration;
animData.slideOutDuration = m_slideOutDuration;
}
if (static_cast<size_t>(rawAtomData.size()) >= sizeof(uint32_t) * 5) {
animData.slideLength = atomData[4];
} else {
animData.slideLength = 0;
}
setupAnimData(w);
}
void SlidingPopupsEffect::setupAnimData(EffectWindow *w)
{
const QRect screenRect = effects->clientArea(FullScreenArea, w->screen(), effects->currentDesktop());
const QRect windowGeo = w->geometry();
AnimationData &animData = m_animationsData[w];
if (animData.offset == -1) {
switch (animData.location) {
case Location::Left:
animData.offset = qMax(windowGeo.left() - screenRect.left(), 0);
break;
case Location::Top:
animData.offset = qMax(windowGeo.top() - screenRect.top(), 0);
break;
case Location::Right:
animData.offset = qMax(screenRect.right() - windowGeo.right(), 0);
break;
case Location::Bottom:
default:
animData.offset = qMax(screenRect.bottom() - windowGeo.bottom(), 0);
break;
}
}
// sanitize
switch (animData.location) {
case Location::Left:
animData.offset = qMax(windowGeo.left() - screenRect.left(), animData.offset);
break;
case Location::Top:
animData.offset = qMax(windowGeo.top() - screenRect.top(), animData.offset);
break;
case Location::Right:
animData.offset = qMax(screenRect.right() - windowGeo.right(), animData.offset);
break;
case Location::Bottom:
default:
animData.offset = qMax(screenRect.bottom() - windowGeo.bottom(), animData.offset);
break;
}
animData.slideInDuration = (animData.slideInDuration.count() != 0)
? animData.slideInDuration
: m_slideInDuration;
animData.slideOutDuration = (animData.slideOutDuration.count() != 0)
? animData.slideOutDuration
: m_slideOutDuration;
// Grab the window, so other windowClosed effects will ignore it
w->setData(WindowClosedGrabRole, QVariant::fromValue(static_cast<void*>(this)));
}
void SlidingPopupsEffect::slotWaylandSlideOnShowChanged(EffectWindow* w)
{
if (!w) {
return;
}
KWaylandServer::SurfaceInterface *surf = w->surface();
if (!surf) {
return;
}
if (surf->slideOnShowHide()) {
AnimationData &animData = m_animationsData[w];
animData.offset = surf->slideOnShowHide()->offset();
switch (surf->slideOnShowHide()->location()) {
case KWaylandServer::SlideInterface::Location::Top:
animData.location = Location::Top;
break;
case KWaylandServer::SlideInterface::Location::Left:
animData.location = Location::Left;
break;
case KWaylandServer::SlideInterface::Location::Right:
animData.location = Location::Right;
break;
case KWaylandServer::SlideInterface::Location::Bottom:
default:
animData.location = Location::Bottom;
break;
}
animData.slideLength = 0;
animData.slideInDuration = m_slideInDuration;
animData.slideOutDuration = m_slideOutDuration;
setupAnimData(w);
}
}
void SlidingPopupsEffect::setupInternalWindowSlide(EffectWindow *w)
{
if (!w) {
return;
}
auto internal = w->internalWindow();
if (!internal) {
return;
}
const QVariant slideProperty = internal->property("kwin_slide");
if (!slideProperty.isValid()) {
return;
}
Location location;
switch (slideProperty.value<KWindowEffects::SlideFromLocation>()) {
case KWindowEffects::BottomEdge:
location = Location::Bottom;
break;
case KWindowEffects::TopEdge:
location = Location::Top;
break;
case KWindowEffects::RightEdge:
location = Location::Right;
break;
case KWindowEffects::LeftEdge:
location = Location::Left;
break;
default:
return;
}
AnimationData &animData = m_animationsData[w];
animData.location = location;
bool intOk = false;
animData.offset = internal->property("kwin_slide_offset").toInt(&intOk);
if (!intOk) {
animData.offset = -1;
}
animData.slideLength = 0;
animData.slideInDuration = m_slideInDuration;
animData.slideOutDuration = m_slideOutDuration;
setupAnimData(w);
}
bool SlidingPopupsEffect::eventFilter(QObject *watched, QEvent *event)
{
auto internal = qobject_cast<QWindow*>(watched);
if (internal && event->type() == QEvent::DynamicPropertyChange) {
QDynamicPropertyChangeEvent *pe = static_cast<QDynamicPropertyChangeEvent*>(event);
if (pe->propertyName() == "kwin_slide" || pe->propertyName() == "kwin_slide_offset") {
if (auto w = effects->findWindow(internal)) {
setupInternalWindowSlide(w);
}
}
}
return false;
}
void SlidingPopupsEffect::slideIn(EffectWindow *w)
{
if (effects->activeFullScreenEffect()) {
return;
}
if (!w->isVisible()) {
return;
}
auto dataIt = m_animationsData.constFind(w);
if (dataIt == m_animationsData.constEnd()) {
return;
}
Animation &animation = m_animations[w];
animation.kind = AnimationKind::In;
animation.timeLine.setDirection(TimeLine::Forward);
animation.timeLine.setDuration((*dataIt).slideInDuration);
animation.timeLine.setEasingCurve(QEasingCurve::OutCubic);
// If the opposite animation (Out) was active and it had shorter duration,
// at this point, the timeline can end up in the "done" state. Thus, we have
// to reset it.
if (animation.timeLine.done()) {
animation.timeLine.reset();
}
w->setData(WindowAddedGrabRole, QVariant::fromValue(static_cast<void*>(this)));
w->setData(WindowForceBackgroundContrastRole, QVariant(true));
w->setData(WindowForceBlurRole, QVariant(true));
w->addRepaintFull();
}
void SlidingPopupsEffect::slideOut(EffectWindow *w)
{
if (effects->activeFullScreenEffect()) {
return;
}
if (!w->isVisible()) {
return;
}
auto dataIt = m_animationsData.constFind(w);
if (dataIt == m_animationsData.constEnd()) {
return;
}
if (w->isDeleted()) {
w->refWindow();
}
Animation &animation = m_animations[w];
animation.kind = AnimationKind::Out;
animation.timeLine.setDirection(TimeLine::Backward);
animation.timeLine.setDuration((*dataIt).slideOutDuration);
// this is effectively InCubic because the direction is reversed
animation.timeLine.setEasingCurve(QEasingCurve::OutCubic);
// If the opposite animation (In) was active and it had shorter duration,
// at this point, the timeline can end up in the "done" state. Thus, we have
// to reset it.
if (animation.timeLine.done()) {
animation.timeLine.reset();
}
w->setData(WindowClosedGrabRole, QVariant::fromValue(static_cast<void*>(this)));
w->setData(WindowForceBackgroundContrastRole, QVariant(true));
w->setData(WindowForceBlurRole, QVariant(true));
w->addRepaintFull();
}
void SlidingPopupsEffect::stopAnimations()
{
for (auto it = m_animations.constBegin(); it != m_animations.constEnd(); ++it) {
EffectWindow *w = it.key();
if (w->isDeleted()) {
w->unrefWindow();
} else {
w->setData(WindowForceBackgroundContrastRole, QVariant());
w->setData(WindowForceBlurRole, QVariant());
}
}
m_animations.clear();
}
bool SlidingPopupsEffect::isActive() const
{
return !m_animations.isEmpty();
}
} // namespace