kwin/effects/slidingpopups/slidingpopups.cpp
Vlad Zahorodnii 1fb9f6f13a Switch to SPDX license markers
The main advantage of SPDX license identifiers over the traditional
license headers is that it's more difficult to overlook inappropriate
licenses for kwin, for example GPL 3. We also don't have to copy a
lot of boilerplate text.

In order to create this change, I ran licensedigger -r -c from the
toplevel source directory.
2020-08-07 19:57:56 +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