yukijoou/kwin
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
kwin/layers.cpp
Thomas Lübking 31f9533029 implement restack configure events, fix stackUnder when stacking up under a foreign client 
BUG: 288721
REVIEW: 103387
2011-12-18 19:42:06 +01:00

843 lines
30 KiB
C++
Raw Blame History

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2003 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/>.
*********************************************************************/
// SELI zmenit doc
/*
This file contains things relevant to stacking order and layers.
Design:
Normal unconstrained stacking order, as requested by the user (by clicking
on windows to raise them, etc.), is in Workspace::unconstrained_stacking_order.
That list shouldn't be used at all, except for building
Workspace::stacking_order. The building is done
in Workspace::constrainedStackingOrder(). Only Workspace::stackingOrder() should
be used to get the stacking order, because it also checks the stacking order
is up to date.
All clients are also stored in Workspace::clients (except for isDesktop() clients,
as those are very special, and are stored in Workspace::desktops), in the order
the clients were created.
Every window has one layer assigned in which it is. There are 6 layers,
from bottom : DesktopLayer, BelowLayer, NormalLayer, DockLayer, AboveLayer
and ActiveLayer (see also NETWM sect.7.10.). The layer a window is in depends
on the window type, and on other things like whether the window is active.
NET::Splash clients belong to the Normal layer. NET::TopMenu clients
belong to Dock layer. Clients that are both NET::Dock and NET::KeepBelow
are in the Normal layer in order to keep the 'allow window to cover
the panel' Kicker setting to work as intended (this may look like a slight
spec violation, but a) I have no better idea, b) the spec allows adjusting
the stacking order if the WM thinks it's a good idea . We put all
NET::KeepAbove above all Docks too, even though the spec suggests putting
them in the same layer.
Most transients are in the same layer as their mainwindow,
see Workspace::constrainedStackingOrder(), they may also be in higher layers, but
they should never be below their mainwindow.
When some client attribute changes (above/below flag, transiency...),
Workspace::updateClientLayer() should be called in order to make
sure it's moved to the appropriate layer ClientList if needed.
Currently the things that affect client in which layer a client
belongs: KeepAbove/Keep Below flags, window type, fullscreen
state and whether the client is active, mainclient (transiency).
Make sure updateStackingOrder() is called in order to make
Workspace::stackingOrder() up to date and propagated to the world.
Using Workspace::blockStackingUpdates() (or the StackingUpdatesBlocker
helper class) it's possible to temporarily disable updates
and the stacking order will be updated once after it's allowed again.
*/
#include <assert.h>
#include <kdebug.h>
#include "utils.h"
#include "client.h"
#include "workspace.h"
#include "tabbox.h"
#include "group.h"
#include "rules.h"
#include "unmanaged.h"
#include "deleted.h"
#include "effects.h"
#include <QX11Info>
namespace KWin
{
//*******************************
// Workspace
//*******************************
void Workspace::updateClientLayer(Client* c)
{
if (c == NULL)
return;
if (c->layer() == c->belongsToLayer())
return;
StackingUpdatesBlocker blocker(this);
c->invalidateLayer(); // invalidate, will be updated when doing restacking
for (ClientList::ConstIterator it = c->transients().constBegin();
it != c->transients().constEnd();
++it)
updateClientLayer(*it);
}
void Workspace::updateStackingOrder(bool propagate_new_clients)
{
if (block_stacking_updates > 0) {
if (propagate_new_clients)
blocked_propagating_new_clients = true;
return;
}
ClientList new_stacking_order = constrainedStackingOrder();
bool changed = (new_stacking_order != stacking_order || force_restacking);
force_restacking = false;
stacking_order = new_stacking_order;
#if 0
kDebug(1212) << "stacking:" << changed;
if (changed || propagate_new_clients) {
for (ClientList::ConstIterator it = stacking_order.begin();
it != stacking_order.end();
++it)
kDebug(1212) << (void*)(*it) << *it << ":" << (*it)->layer();
}
#endif
if (changed || propagate_new_clients) {
propagateClients(propagate_new_clients);
addRepaintFull();
if (active_client)
active_client->updateMouseGrab();
}
}
/*!
Propagates the managed clients to the world.
Called ONLY from updateStackingOrder().
*/
void Workspace::propagateClients(bool propagate_new_clients)
{
Window *cl; // MW we should not assume WId and Window to be compatible
// when passig pointers around.
// restack the windows according to the stacking order
// 1 - supportWindow, 1 - topmenu_space, 8 - electric borders
QVector<Window*> newWindowStack;
// Stack all windows under the support window. The support window is
// not used for anything (besides the NETWM property), and it's not shown,
// but it was lowered after kwin startup. Stacking all clients below
// it ensures that no client will be ever shown above override-redirect
// windows (e.g. popups).
newWindowStack << (Window*)supportWindow->winId();
#ifdef KWIN_BUILD_SCREENEDGES
QVectorIterator<Window> it(m_screenEdge.windows());
while (it.hasNext()) {
if ((Window)it.next() != None) {
newWindowStack << (Window*)&it;
}
}
#endif
for (int i = stacking_order.size() - 1; i >= 0; i--) {
Client *client = stacking_order.at(i);
if (client->hiddenPreview()) {
continue;
}
if (client->inputId())
// Stack the input window above the frame
newWindowStack << (Window*)client->inputId();
newWindowStack << (Window*)client->frameId();
}
// TODO isn't it too inefficient to restack always all clients?
// TODO don't restack not visible windows?
assert(newWindowStack.at(0) == (Window*)supportWindow->winId());
XRestackWindows(display(), (Window*)newWindowStack.data(), newWindowStack.count());
int pos = 0;
if (propagate_new_clients) {
cl = new Window[ desktops.count() + clients.count()];
// TODO this is still not completely in the map order
for (ClientList::ConstIterator it = desktops.constBegin(); it != desktops.constEnd(); ++it)
cl[pos++] = (*it)->window();
for (ClientList::ConstIterator it = clients.constBegin(); it != clients.constEnd(); ++it)
cl[pos++] = (*it)->window();
rootInfo->setClientList(cl, pos);
delete [] cl;
}
cl = new Window[ stacking_order.count()];
pos = 0;
for (ClientList::ConstIterator it = stacking_order.constBegin(); it != stacking_order.constEnd(); ++it)
cl[pos++] = (*it)->window();
rootInfo->setClientListStacking(cl, pos);
delete [] cl;
// Make the cached stacking order invalid here, in case we need the new stacking order before we get
// the matching event, due to X being asynchronous.
x_stacking_dirty = true;
}
/*!
Returns topmost visible client. Windows on the dock, the desktop
or of any other special kind are excluded. Also if the window
doesn't accept focus it's excluded.
*/
// TODO misleading name for this method, too many slightly different ways to use it
Client* Workspace::topClientOnDesktop(int desktop, int screen, bool unconstrained, bool only_normal) const
{
// TODO Q_ASSERT( block_stacking_updates == 0 );
ClientList list;
if (!unconstrained)
list = stacking_order;
else
list = unconstrained_stacking_order;
for (int i = list.size() - 1;
i >= 0;
--i) {
if (list.at(i)->isOnDesktop(desktop) && list.at(i)->isShown(false) && list.at(i)->isOnCurrentActivity()) {
if (screen != -1 && list.at(i)->screen() != screen)
continue;
if (!only_normal)
return list.at(i);
if (list.at(i)->wantsTabFocus() && !list.at(i)->isSpecialWindow())
return list.at(i);
}
}
return 0;
}
Client* Workspace::findDesktop(bool topmost, int desktop) const
{
// TODO Q_ASSERT( block_stacking_updates == 0 );
if (topmost) {
for (int i = stacking_order.size() - 1; i >= 0; i--) {
if (stacking_order.at(i)->isOnDesktop(desktop) && stacking_order.at(i)->isDesktop()
&& stacking_order.at(i)->isShown(true))
return stacking_order.at(i);
}
} else { // bottom-most
foreach (Client * c, stacking_order) {
if (c->isOnDesktop(desktop) && c->isDesktop()
&& c->isShown(true))
return c;
}
}
return NULL;
}
void Workspace::raiseOrLowerClient(Client *c)
{
if (!c) return;
Client* topmost = NULL;
// TODO Q_ASSERT( block_stacking_updates == 0 );
if (most_recently_raised && stacking_order.contains(most_recently_raised) &&
most_recently_raised->isShown(true) && c->isOnCurrentDesktop())
topmost = most_recently_raised;
else
topmost = topClientOnDesktop(c->isOnAllDesktops() ? currentDesktop() : c->desktop(),
options->separateScreenFocus ? c->screen() : -1);
if (c == topmost)
lowerClient(c);
else
raiseClient(c);
}
void Workspace::lowerClient(Client* c, bool nogroup)
{
if (!c)
return;
c->cancelAutoRaise();
StackingUpdatesBlocker blocker(this);
unconstrained_stacking_order.removeAll(c);
unconstrained_stacking_order.prepend(c);
if (!nogroup && c->isTransient()) {
// lower also all windows in the group, in their reversed stacking order
ClientList wins = ensureStackingOrder(c->group()->members());
for (int i = wins.size() - 1;
i >= 0;
--i) {
if (wins[ i ] != c)
lowerClient(wins[ i ], true);
}
}
if (c == most_recently_raised)
most_recently_raised = 0;
}
void Workspace::lowerClientWithinApplication(Client* c)
{
if (!c)
return;
c->cancelAutoRaise();
StackingUpdatesBlocker blocker(this);
unconstrained_stacking_order.removeAll(c);
bool lowered = false;
// first try to put it below the bottom-most window of the application
for (ClientList::Iterator it = unconstrained_stacking_order.begin();
it != unconstrained_stacking_order.end();
++it)
if (Client::belongToSameApplication(*it, c)) {
unconstrained_stacking_order.insert(it, c);
lowered = true;
break;
}
if (!lowered)
unconstrained_stacking_order.prepend(c);
// ignore mainwindows
}
void Workspace::raiseClient(Client* c, bool nogroup)
{
if (!c)
return;
c->cancelAutoRaise();
StackingUpdatesBlocker blocker(this);
if (!nogroup && c->isTransient()) {
ClientList transients;
Client *transient_parent = c;
while ((transient_parent = transient_parent->transientFor()))
transients << transient_parent;
foreach (transient_parent, transients)
raiseClient(transient_parent, true);
}
unconstrained_stacking_order.removeAll(c);
unconstrained_stacking_order.append(c);
if (!c->isSpecialWindow()) {
most_recently_raised = c;
pending_take_activity = NULL;
}
}
void Workspace::raiseClientWithinApplication(Client* c)
{
if (!c)
return;
c->cancelAutoRaise();
StackingUpdatesBlocker blocker(this);
// ignore mainwindows
// first try to put it above the top-most window of the application
for (int i = unconstrained_stacking_order.size() - 1; i > -1 ; --i) {
Client *other = unconstrained_stacking_order.at(i);
if (other == c) // don't lower it just because it asked to be raised
return;
if (Client::belongToSameApplication(other, c)) {
unconstrained_stacking_order.removeAll(c);
unconstrained_stacking_order.insert(unconstrained_stacking_order.indexOf(other) + 1, c); // insert after the found one
break;
}
}
}
void Workspace::raiseClientRequest(Client* c, NET::RequestSource src, Time timestamp)
{
if (src == NET::FromTool || allowFullClientRaising(c, timestamp))
raiseClient(c);
else {
raiseClientWithinApplication(c);
c->demandAttention();
}
}
void Workspace::lowerClientRequest(Client* c, NET::RequestSource src, Time /*timestamp*/)
{
// If the client has support for all this focus stealing prevention stuff,
// do only lowering within the application, as that's the more logical
// variant of lowering when application requests it.
// No demanding of attention here of course.
if (src == NET::FromTool || !c->hasUserTimeSupport())
lowerClient(c);
else
lowerClientWithinApplication(c);
}
void Workspace::restack(Client* c, Client* under)
{
assert(unconstrained_stacking_order.contains(under));
if (!Client::belongToSameApplication(under, c)) {
// put in the stacking order below _all_ windows belonging to the active application
Client *other = 0;
for (int i = 0; i < unconstrained_stacking_order.size(); ++i) { // TODO ignore topmenus?
if (Client::belongToSameApplication(under, (other = unconstrained_stacking_order.at(i)))) {
under = (c == other) ? 0 : other;
break;
}
}
}
if (under) {
unconstrained_stacking_order.removeAll(c);
unconstrained_stacking_order.insert(unconstrained_stacking_order.indexOf(under), c);
}
assert(unconstrained_stacking_order.contains(c));
for (int desktop = 1; desktop <= numberOfDesktops(); ++desktop) {
// do for every virtual desktop to handle the case of onalldesktop windows
if (c->wantsTabFocus() && c->isOnDesktop(desktop) && focus_chain[ desktop ].contains(under)) {
if (Client::belongToSameApplication(under, c)) {
// put it after the active window if it's the same app
focus_chain[ desktop ].removeAll(c);
focus_chain[ desktop ].insert(focus_chain[ desktop ].indexOf(under), c);
} else {
// put it in focus_chain[currentDesktop()] after all windows belonging to the active applicationa
focus_chain[ desktop ].removeAll(c);
for (int i = focus_chain[ desktop ].size() - 1; i >= 0; --i) {
if (Client::belongToSameApplication(under, focus_chain[ desktop ].at(i))) {
focus_chain[ desktop ].insert(i, c);
break;
}
}
}
}
}
// the same for global_focus_chain
if (c->wantsTabFocus() && global_focus_chain.contains(under)) {
if (Client::belongToSameApplication(under, c)) {
global_focus_chain.removeAll(c);
global_focus_chain.insert(global_focus_chain.indexOf(under), c);
} else {
global_focus_chain.removeAll(c);
for (int i = global_focus_chain.size() - 1; i >= 0; --i) {
if (Client::belongToSameApplication(under, global_focus_chain.at(i))) {
global_focus_chain.insert(i, c);
break;
}
}
}
}
updateStackingOrder();
}
void Workspace::restackClientUnderActive(Client* c)
{
if (!active_client || active_client == c) {
raiseClient(c);
return;
}
restack(c, active_client);
}
void Workspace::restoreSessionStackingOrder(Client* c)
{
if (c->sessionStackingOrder() < 0)
return;
StackingUpdatesBlocker blocker(this);
unconstrained_stacking_order.removeAll(c);
ClientList::Iterator best_pos = unconstrained_stacking_order.end();
for (ClientList::Iterator it = unconstrained_stacking_order.begin(); // from bottom
it != unconstrained_stacking_order.end();
++it) {
if ((*it)->sessionStackingOrder() > c->sessionStackingOrder()) {
unconstrained_stacking_order.insert(it, c);
return;
}
}
unconstrained_stacking_order.append(c);
}
void Workspace::circulateDesktopApplications()
{
if (desktops.count() > 1) {
bool change_active = activeClient()->isDesktop();
raiseClient(findDesktop(false, currentDesktop()));
if (change_active) // if the previously topmost Desktop was active, activate this new one
activateClient(findDesktop(true, currentDesktop()));
}
// if there's no active client, make desktop the active one
if (desktops.count() > 0 && activeClient() == NULL && should_get_focus.count() == 0)
activateClient(findDesktop(true, currentDesktop()));
}
/*!
Returns a stacking order based upon \a list that fulfills certain contained.
*/
ClientList Workspace::constrainedStackingOrder()
{
ClientList layer[ NumLayers ];
#if 0
kDebug(1212) << "stacking1:";
for (ClientList::ConstIterator it = unconstrained_stacking_order.begin();
it != unconstrained_stacking_order.end();
++it)
kDebug(1212) << (void*)(*it) << *it << ":" << (*it)->layer();
#endif
// build the order from layers
QHash< Group*, Layer > minimum_layer;
for (ClientList::ConstIterator it = unconstrained_stacking_order.constBegin();
it != unconstrained_stacking_order.constEnd();
++it) {
Layer l = (*it)->layer();
// If a window is raised above some other window in the same window group
// which is in the ActiveLayer (i.e. it's fulscreened), make sure it stays
// above that window (see #95731).
if (minimum_layer.contains((*it)->group())
&& minimum_layer[(*it)->group()] == ActiveLayer
&& (l == NormalLayer || l == AboveLayer)) {
l = minimum_layer[(*it)->group()];
}
minimum_layer[(*it)->group()] = l;
layer[ l ].append(*it);
}
ClientList stacking;
for (Layer lay = FirstLayer;
lay < NumLayers;
++lay)
stacking += layer[ lay ];
#if 0
kDebug(1212) << "stacking2:";
for (ClientList::ConstIterator it = stacking.begin();
it != stacking.end();
++it)
kDebug(1212) << (void*)(*it) << *it << ":" << (*it)->layer();
#endif
// now keep transients above their mainwindows
// TODO this could(?) use some optimization
for (int i = stacking.size() - 1;
i >= 0;
) {
if (!stacking[ i ]->isTransient()) {
--i;
continue;
}
int i2 = -1;
if (stacking[ i ]->groupTransient()) {
if (stacking[ i ]->group()->members().count() > 0) {
// find topmost client this one is transient for
for (i2 = stacking.size() - 1;
i2 >= 0;
--i2) {
if (stacking[ i2 ] == stacking[ i ]) {
i2 = -1; // don't reorder, already the topmost in the group
break;
}
if (stacking[ i2 ]->hasTransient(stacking[ i ], true)
&& keepTransientAbove(stacking[ i2 ], stacking[ i ]))
break;
}
} // else i2 remains pointing at -1
} else {
for (i2 = stacking.size() - 1;
i2 >= 0;
--i2) {
if (stacking[ i2 ] == stacking[ i ]) {
i2 = -1; // don't reorder, already on top of its mainwindow
break;
}
if (stacking[ i2 ] == stacking[ i ]->transientFor()
&& keepTransientAbove(stacking[ i2 ], stacking[ i ]))
break;
}
}
if (i2 == -1) {
--i;
continue;
}
Client* current = stacking[ i ];
stacking.removeAt(i);
--i; // move onto the next item (for next for () iteration)
--i2; // adjust index of the mainwindow after the remove above
if (!current->transients().isEmpty()) // this one now can be possibly above its transients,
i = i2; // so go again higher in the stack order and possibly move those transients again
++i2; // insert after (on top of) the mainwindow, it's ok if it2 is now stacking.end()
stacking.insert(i2, current);
}
#if 0
kDebug(1212) << "stacking3:";
for (ClientList::ConstIterator it = stacking.begin();
it != stacking.end();
++it)
kDebug(1212) << (void*)(*it) << *it << ":" << (*it)->layer();
kDebug(1212) << "\n\n";
#endif
return stacking;
}
void Workspace::blockStackingUpdates(bool block)
{
if (block) {
if (block_stacking_updates == 0)
blocked_propagating_new_clients = false;
++block_stacking_updates;
} else // !block
if (--block_stacking_updates == 0) {
updateStackingOrder(blocked_propagating_new_clients);
if (effects)
static_cast<EffectsHandlerImpl*>(effects)->checkInputWindowStacking();
}
}
// Ensure list is in stacking order
ClientList Workspace::ensureStackingOrder(const ClientList& list) const
{
// TODO Q_ASSERT( block_stacking_updates == 0 );
if (list.count() < 2)
return list;
// TODO is this worth optimizing?
ClientList result = list;
for (ClientList::ConstIterator it = stacking_order.constBegin();
it != stacking_order.constEnd();
++it)
if (result.removeAll(*it) != 0)
result.append(*it);
return result;
}
// check whether a transient should be actually kept above its mainwindow
// there may be some special cases where this rule shouldn't be enfored
bool Workspace::keepTransientAbove(const Client* mainwindow, const Client* transient)
{
// #93832 - don't keep splashscreens above dialogs
if (transient->isSplash() && mainwindow->isDialog())
return false;
// This is rather a hack for #76026. Don't keep non-modal dialogs above
// the mainwindow, but only if they're group transient (since only such dialogs
// have taskbar entry in Kicker). A proper way of doing this (both kwin and kicker)
// needs to be found.
if (transient->isDialog() && !transient->isModal() && transient->groupTransient())
return false;
// #63223 - don't keep transients above docks, because the dock is kept high,
// and e.g. dialogs for them would be too high too
if (mainwindow->isDock())
return false;
return true;
}
// Returns all windows in their stacking order on the root window.
ToplevelList Workspace::xStackingOrder() const
{
if (!x_stacking_dirty)
return x_stacking;
x_stacking_dirty = false;
x_stacking.clear();
Window dummy;
Window* windows = NULL;
unsigned int count = 0;
XQueryTree(display(), rootWindow(), &dummy, &dummy, &windows, &count);
// use our own stacking order, not the X one, as they may differ
foreach (Client * c, stacking_order)
x_stacking.append(c);
for (unsigned int i = 0;
i < count;
++i) {
if (Unmanaged* c = findUnmanaged(WindowMatchPredicate(windows[ i ])))
x_stacking.append(c);
}
foreach (Deleted * c, deleted)
x_stacking.append(c);
if (windows != NULL)
XFree(windows);
const_cast< Workspace* >(this)->checkUnredirect();
return x_stacking;
}
//*******************************
// Client
//*******************************
void Client::restackWindow(Window above, int detail, NET::RequestSource src, Time timestamp, bool send_event)
{
Client *other = 0;
if (detail == Opposite) {
other = workspace()->findClient(WindowMatchPredicate(above));
if (!other) {
workspace()->raiseOrLowerClient(this);
return;
}
ClientList::const_iterator it = workspace()->stackingOrder().constBegin(),
end = workspace()->stackingOrder().constEnd();
while (it != end) {
if (*it == this) {
detail = Above;
break;
} else if (*it == other) {
detail = Below;
break;
}
++it;
}
}
else if (detail == TopIf) {
other = workspace()->findClient(WindowMatchPredicate(above));
if (other && other->geometry().intersects(geometry()))
workspace()->raiseClientRequest(this, src, timestamp);
return;
}
else if (detail == BottomIf) {
other = workspace()->findClient(WindowMatchPredicate(above));
if (other && other->geometry().intersects(geometry()))
workspace()->lowerClientRequest(this, src, timestamp);
return;
}
if (!other)
other = workspace()->findClient(WindowMatchPredicate(above));
if (other && detail == Above) {
ClientList::const_iterator it = workspace()->stackingOrder().constEnd(),
begin = workspace()->stackingOrder().constBegin();
while (--it != begin) {
if (*it == this)
return; // we're already above
if (*it == other) { // the other one is top on stack
it = begin; // invalidate
src = NET::FromTool; // force
break;
}
if (!( (*it)->isNormalWindow() && (*it)->isShown(true) &&
(*it)->isOnCurrentDesktop() && (*it)->isOnCurrentActivity() && (*it)->isOnScreen(screen()) ))
continue; // irrelevant clients
if (*(it - 1) == other)
break; // "it" is the one above the target one, stack below "it"
}
if (it != begin && (*(it - 1) == other))
other = const_cast<Client*>(*it);
else
other = 0;
}
if (other)
workspace()->restack(this, other);
else if (detail == Below)
workspace()->lowerClientRequest(this, src, timestamp);
else if (detail == Above)
workspace()->raiseClientRequest(this, src, timestamp);
if (send_event)
sendSyntheticConfigureNotify();
}
void Client::setKeepAbove(bool b)
{
b = rules()->checkKeepAbove(b);
if (b && !rules()->checkKeepBelow(false))
setKeepBelow(false);
if (b == keepAbove()) {
// force hint change if different
if (bool(info->state() & NET::KeepAbove) != keepAbove())
info->setState(keepAbove() ? NET::KeepAbove : 0, NET::KeepAbove);
return;
}
keep_above = b;
info->setState(keepAbove() ? NET::KeepAbove : 0, NET::KeepAbove);
if (decoration != NULL)
decoration->emitKeepAboveChanged(keepAbove());
workspace()->updateClientLayer(this);
updateWindowRules();
// Update states of all other windows in this group
if (clientGroup())
clientGroup()->updateStates(this);
}
void Client::setKeepBelow(bool b)
{
b = rules()->checkKeepBelow(b);
if (b && !rules()->checkKeepAbove(false))
setKeepAbove(false);
if (b == keepBelow()) {
// force hint change if different
if (bool(info->state() & NET::KeepBelow) != keepBelow())
info->setState(keepBelow() ? NET::KeepBelow : 0, NET::KeepBelow);
return;
}
keep_below = b;
info->setState(keepBelow() ? NET::KeepBelow : 0, NET::KeepBelow);
if (decoration != NULL)
decoration->emitKeepBelowChanged(keepBelow());
workspace()->updateClientLayer(this);
updateWindowRules();
// Update states of all other windows in this group
if (clientGroup())
clientGroup()->updateStates(this);
}
Layer Client::layer() const
{
if (in_layer == UnknownLayer)
const_cast< Client* >(this)->in_layer = belongsToLayer();
return in_layer;
}
Layer Client::belongsToLayer() const
{
if (isDesktop())
return DesktopLayer;
if (isSplash()) // no damn annoying splashscreens
return NormalLayer; // getting in the way of everything else
if (isDock() && keepBelow())
// 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
return NormalLayer;
if (keepBelow())
return BelowLayer;
if (isDock() && !keepBelow())
return DockLayer;
if (isActiveFullScreen())
return ActiveLayer;
if (keepAbove())
return AboveLayer;
return NormalLayer;
}
bool Client::isActiveFullScreen() const
{
// only raise fullscreen above docks if it's the topmost window in unconstrained stacking order,
// i.e. the window set to be topmost by the user (also includes transients of the fullscreen window)
const Client* ac = workspace()->mostRecentlyActivatedClient(); // instead of activeClient() - avoids flicker
const Client* top = workspace()->topClientOnDesktop(workspace()->currentDesktop(), screen(), true, false);
return(isFullScreen() && ac != NULL && top != NULL
// not needed, for xinerama && ( ac == this || this->group() == ac->group())
&& (top == this || this->group() == top->group()));
}
} // namespace
Reference in a new issue View git blame Copy permalink