kwin/effects/slideback/slideback.cpp
David Edmundson fe47a8d9b9 [effects/slideback] Port away from deprecated EffectWindow::desktop
Summary:
Not only does the function windowsShareDesktop become a lot more complex
with the new desktop cardinality comparing if they share any desktop
isn't actually what we want.

If I have 2 windows on desktop 1 and the lower stacked window is also on
desktop 2, when I switch desktops the focus will change, but we don't
want to animate anything here as on this dekstop it has nothing to slide
in front of.

Instead this patch simply checks both windows are on the current
desktop.

Test Plan:
Loaded a few windows. Some on one, some on more.
Before if a window was on desktop 1&2 it wouldn't animate on 2.

Windows now seem to animate when they should and not when they shouldn't.

Reviewers: #kwin, zzag

Reviewed By: #kwin, zzag

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D17943
2019-01-03 16:47:28 +00:00

341 lines
13 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2009 Michael Zanetti <michael_zanetti@gmx.net>
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 "slideback.h"
namespace KWin
{
SlideBackEffect::SlideBackEffect()
{
m_tabboxActive = 0;
m_justMapped = m_upmostWindow = NULL;
connect(effects, SIGNAL(windowAdded(KWin::EffectWindow*)), SLOT(slotWindowAdded(KWin::EffectWindow*)));
connect(effects, SIGNAL(windowDeleted(KWin::EffectWindow*)), SLOT(slotWindowDeleted(KWin::EffectWindow*)));
connect(effects, SIGNAL(windowUnminimized(KWin::EffectWindow*)), SLOT(slotWindowUnminimized(KWin::EffectWindow*)));
connect(effects, SIGNAL(tabBoxAdded(int)), SLOT(slotTabBoxAdded()));
connect(effects, SIGNAL(stackingOrderChanged()), SLOT(slotStackingOrderChanged()));
connect(effects, SIGNAL(tabBoxClosed()), SLOT(slotTabBoxClosed()));
}
void SlideBackEffect::slotStackingOrderChanged()
{
if (effects->activeFullScreenEffect() || m_tabboxActive) {
oldStackingOrder = effects->stackingOrder();
usableOldStackingOrder = usableWindows(oldStackingOrder);
return;
}
EffectWindowList newStackingOrder = effects->stackingOrder(),
usableNewStackingOrder = usableWindows(newStackingOrder);
if (usableNewStackingOrder == usableOldStackingOrder || usableNewStackingOrder.isEmpty()) {
oldStackingOrder = newStackingOrder;
usableOldStackingOrder = usableNewStackingOrder;
return;
}
m_upmostWindow = usableNewStackingOrder.last();
if (m_upmostWindow == m_justMapped ) // a window was added, got on top, stacking changed. Nothing impressive
m_justMapped = 0;
else if (!usableOldStackingOrder.isEmpty() && m_upmostWindow != usableOldStackingOrder.last())
windowRaised(m_upmostWindow);
oldStackingOrder = newStackingOrder;
usableOldStackingOrder = usableNewStackingOrder;
}
void SlideBackEffect::windowRaised(EffectWindow *w)
{
// Determine all windows on top of the activated one
bool currentFound = false;
foreach (EffectWindow * tmp, oldStackingOrder) {
if (!currentFound) {
if (tmp == w) {
currentFound = true;
}
} else {
if (isWindowUsable(tmp) && tmp->isOnCurrentDesktop() && w->isOnCurrentDesktop()) {
// Do we have to move it?
if (intersects(w, tmp->geometry())) {
QRect slideRect;
slideRect = getSlideDestination(getModalGroupGeometry(w), tmp->geometry());
effects->setElevatedWindow(tmp, true);
elevatedList.append(tmp);
motionManager.manage(tmp);
motionManager.moveWindow(tmp, slideRect);
destinationList.insert(tmp, slideRect);
coveringWindows.append(tmp);
} else {
//Does it intersect with a moved (elevated) window and do we have to elevate it too?
foreach (EffectWindow * elevatedWindow, elevatedList) {
if (tmp->geometry().intersects(elevatedWindow->geometry())) {
effects->setElevatedWindow(tmp, true);
elevatedList.append(tmp);
break;
}
}
}
}
if (tmp->isDock() || tmp->keepAbove()) {
effects->setElevatedWindow(tmp, true);
elevatedList.append(tmp);
}
}
}
// If a window is minimized it could happen that the panels stay elevated without any windows sliding.
// clear all elevation settings
if (!motionManager.managingWindows()) {
foreach (EffectWindow * tmp, elevatedList) {
effects->setElevatedWindow(tmp, false);
}
}
}
QRect SlideBackEffect::getSlideDestination(const QRect &windowUnderGeometry, const QRect &windowOverGeometry)
{
// Determine the shortest way:
int leftSlide = windowUnderGeometry.left() - windowOverGeometry.right() - 20;
int rightSlide = windowUnderGeometry.right() - windowOverGeometry.left() + 20;
int upSlide = windowUnderGeometry.top() - windowOverGeometry.bottom() - 20;
int downSlide = windowUnderGeometry.bottom() - windowOverGeometry.top() + 20;
int horizSlide = leftSlide;
if (qAbs(horizSlide) > qAbs(rightSlide)) {
horizSlide = rightSlide;
}
int vertSlide = upSlide;
if (qAbs(vertSlide) > qAbs(downSlide)) {
vertSlide = downSlide;
}
QRect slideRect = windowOverGeometry;
if (qAbs(horizSlide) < qAbs(vertSlide)) {
slideRect.moveLeft(slideRect.x() + horizSlide);
} else {
slideRect.moveTop(slideRect.y() + vertSlide);
}
return slideRect;
}
void SlideBackEffect::prePaintScreen(ScreenPrePaintData &data, int time)
{
if (motionManager.managingWindows()) {
motionManager.calculate(time);
data.mask |= Effect::PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS;
}
for (auto const &w : effects->stackingOrder()) {
w->setData(WindowForceBlurRole, QVariant(true));
}
effects->prePaintScreen(data, time);
}
void SlideBackEffect::postPaintScreen()
{
if (motionManager.areWindowsMoving()) {
effects->addRepaintFull();
}
for (auto &w : effects->stackingOrder()) {
w->setData(WindowForceBlurRole, QVariant());
}
effects->postPaintScreen();
}
void SlideBackEffect::prePaintWindow(EffectWindow *w, WindowPrePaintData &data, int time)
{
if (motionManager.isManaging(w)) {
data.setTransformed();
}
effects->prePaintWindow(w, data, time);
}
void SlideBackEffect::paintWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data)
{
if (motionManager.isManaging(w)) {
motionManager.apply(w, data);
}
foreach (const QRegion &r, clippedRegions) {
region = region.intersected(r);
}
effects->paintWindow(w, mask, region, data);
for (int i = clippedRegions.count() - 1; i > -1; --i)
PaintClipper::pop(clippedRegions.at(i));
clippedRegions.clear();
}
void SlideBackEffect::postPaintWindow(EffectWindow* w)
{
if (motionManager.isManaging(w)) {
if (destinationList.contains(w)) {
if (!motionManager.isWindowMoving(w)) { // has window reched its destination?
// If we are still intersecting with the upmostWindow it is moving. slide to somewhere else
// restore the stacking order of all windows not intersecting any more except panels
if (coveringWindows.contains(w)) {
EffectWindowList tmpList;
foreach (EffectWindow * tmp, elevatedList) {
QRect elevatedGeometry = tmp->geometry();
if (motionManager.isManaging(tmp)) {
elevatedGeometry = motionManager.transformedGeometry(tmp).toAlignedRect();
}
if (m_upmostWindow && !tmp->isDock() && !tmp->keepAbove() && m_upmostWindow->geometry().intersects(elevatedGeometry)) {
QRect newDestination;
newDestination = getSlideDestination(getModalGroupGeometry(m_upmostWindow), elevatedGeometry);
if (!motionManager.isManaging(tmp)) {
motionManager.manage(tmp);
}
motionManager.moveWindow(tmp, newDestination);
destinationList[tmp] = newDestination;
} else {
if (!tmp->isDock()) {
bool keepElevated = false;
foreach (EffectWindow * elevatedWindow, tmpList) {
if (tmp->geometry().intersects(elevatedWindow->geometry())) {
keepElevated = true;
}
}
if (!keepElevated) {
effects->setElevatedWindow(tmp, false);
elevatedList.removeAll(tmp);
}
}
}
tmpList.append(tmp);
}
} else {
// Move the window back where it belongs
motionManager.moveWindow(w, w->geometry());
destinationList.remove(w);
}
}
} else {
// is window back at its original position?
if (!motionManager.isWindowMoving(w)) {
motionManager.unmanage(w);
effects->addRepaintFull();
}
}
if (coveringWindows.contains(w)) {
// It could happen that there is no aciveWindow() here if the user clicks the close-button on an inactive window.
// Just skip... the window will be removed in windowDeleted() later
if (m_upmostWindow && !intersects(m_upmostWindow, motionManager.transformedGeometry(w).toAlignedRect())) {
coveringWindows.removeAll(w);
if (coveringWindows.isEmpty()) {
// Restore correct stacking order
foreach (EffectWindow * tmp, elevatedList) {
effects->setElevatedWindow(tmp, false);
}
elevatedList.clear();
}
}
}
}
effects->postPaintWindow(w);
}
void SlideBackEffect::slotWindowDeleted(EffectWindow* w)
{
if (w == m_upmostWindow)
m_upmostWindow = 0;
if (w == m_justMapped)
m_justMapped = 0;
usableOldStackingOrder.removeAll(w);
oldStackingOrder.removeAll(w);
coveringWindows.removeAll(w);
elevatedList.removeAll(w);
if (motionManager.isManaging(w)) {
motionManager.unmanage(w);
}
}
void SlideBackEffect::slotWindowAdded(EffectWindow *w)
{
m_justMapped = w;
}
void SlideBackEffect::slotWindowUnminimized(EffectWindow* w)
{
// SlideBack should not be triggered on an unminimized window. For this we need to store the last unminimized window.
m_justMapped = w;
// the stackingOrderChanged() signal came before the window turned an effect window
// usually this is no problem as the change shall not be caught anyway, but
// the window may have changed its stack position, bug #353745
slotStackingOrderChanged();
}
void SlideBackEffect::slotTabBoxAdded()
{
++m_tabboxActive;
}
void SlideBackEffect::slotTabBoxClosed()
{
m_tabboxActive = qMax(m_tabboxActive-1, 0);
}
bool SlideBackEffect::isWindowUsable(EffectWindow* w)
{
return w && (w->isNormalWindow() || w->isDialog()) && !w->keepAbove() && !w->isDeleted() && !w->isMinimized()
&& w->isCurrentTab() && w->isPaintingEnabled();
}
bool SlideBackEffect::intersects(EffectWindow* windowUnder, const QRect &windowOverGeometry)
{
QRect windowUnderGeometry = getModalGroupGeometry(windowUnder);
return windowUnderGeometry.intersects(windowOverGeometry);
}
EffectWindowList SlideBackEffect::usableWindows(const EffectWindowList & allWindows)
{
EffectWindowList retList;
auto isWindowVisible = [] (const EffectWindow *window) {
return window && effects->virtualScreenGeometry().intersects(window->geometry());
};
foreach (EffectWindow * tmp, allWindows) {
if (isWindowUsable(tmp) && isWindowVisible(tmp)) {
retList.append(tmp);
}
}
return retList;
}
QRect SlideBackEffect::getModalGroupGeometry(EffectWindow *w)
{
QRect modalGroupGeometry = w->geometry();
if (w->isModal()) {
foreach (EffectWindow * modalWindow, w->mainWindows()) {
modalGroupGeometry = modalGroupGeometry.united(getModalGroupGeometry(modalWindow));
}
}
return modalGroupGeometry;
}
bool SlideBackEffect::isActive() const
{
return motionManager.managingWindows();
}
} //Namespace