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kwin/workspace.cpp

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/*****************************************************************
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>
You can Freely distribute this program under the GNU General Public
License. See the file "COPYING" for the exact licensing terms.
******************************************************************/
//#define QT_CLEAN_NAMESPACE
#include "workspace.h"
#include <kapplication.h>
#include <kstartupinfo.h>
#include <fixx11h.h>
#include <kconfig.h>
#include <kglobal.h>
#include <klocale.h>
#include <QRegExp>
#include <QPainter>
#include <QBitmap>
#include <QClipboard>
#include <kmenubar.h>
#include <kprocess.h>
#include <kglobalaccel.h>
#include <QDesktopWidget>
#include <QToolButton>
#include <kactioncollection.h>
#include <kaction.h>
#include <kconfiggroup.h>
#include <QtDBus/QtDBus>
#include "plugins.h"
#include "client.h"
#include "popupinfo.h"
#include "tabbox.h"
#include "atoms.h"
#include "placement.h"
#include "notifications.h"
#include "group.h"
#include "rules.h"
#include "kwinadaptor.h"
#include "unmanaged.h"
#include "scene.h"
#include "deleted.h"
#include "effects.h"
#include <X11/extensions/shape.h>
#include <X11/keysym.h>
#include <X11/keysymdef.h>
#include <X11/cursorfont.h>
#include <QX11Info>
#include <stdio.h>
#include <kauthorized.h>
#include <ktoolinvocation.h>
#include <kglobalsettings.h>
namespace KWin
{
extern int screen_number;
Workspace *Workspace::_self = 0;
// Rikkus: This class is too complex. It needs splitting further.
// It's a nightmare to understand, especially with so few comments :(
// Matthias: Feel free to ask me questions about it. Feel free to add
// comments. I dissagree that further splittings makes it easier. 2500
// lines are not too much. It's the task that is complex, not the
// code.
Workspace::Workspace( bool restore )
: QObject (0),
current_desktop (0),
number_of_desktops(0),
active_popup( NULL ),
active_popup_client( NULL ),
desktop_widget (0),
temporaryRulesMessages( "_KDE_NET_WM_TEMPORARY_RULES", NULL, false ),
rules_updates_disabled( false ),
active_client (0),
last_active_client (0),
most_recently_raised (0),
movingClient(0),
pending_take_activity ( NULL ),
active_screen (0),
delayfocus_client (0),
force_restacking( false ),
showing_desktop( false ),
block_showing_desktop( 0 ),
was_user_interaction (false),
session_saving (false),
control_grab (false),
tab_grab (false),
mouse_emulation (false),
block_focus (0),
tab_box (0),
popupinfo (0),
popup (0),
advanced_popup (0),
trans_popup (0),
desk_popup (0),
keys (0),
client_keys ( NULL ),
// client_keys_dialog ( NULL ),
client_keys_client ( NULL ),
disable_shortcuts_keys ( NULL ),
global_shortcuts_disabled( false ),
global_shortcuts_disabled_for_client( false ),
workspaceInit (true),
startup(0),
layoutOrientation(Qt::Vertical),
layoutX(-1),
layoutY(2),
workarea(NULL),
screenarea(NULL),
managing_topmenus( false ),
topmenu_selection( NULL ),
topmenu_watcher( NULL ),
topmenu_height( 0 ),
topmenu_space( NULL ),
set_active_client_recursion( 0 ),
block_stacking_updates( 0 ),
forced_global_mouse_grab( false ),
cm_selection( NULL ),
compositeRate( 0 ),
overlay( None ),
transSlider( NULL ),
transButton( NULL )
{
(void) new KWinAdaptor( this );
QDBusConnection dbus = QDBusConnection::sessionBus();
dbus.registerObject("/KWin", this);
dbus.connect(QString(), "/KWin", "org.kde.KWin", "reloadConfig", this, SLOT(slotReloadConfig()));
_self = this;
mgr = new PluginMgr;
QX11Info info;
default_colormap = DefaultColormap(display(), info.screen() );
installed_colormap = default_colormap;
for( int i = 0;
i < ELECTRIC_COUNT;
++i )
{
electric_reserved[ i ] = 0;
electric_windows[ i ] = None;
}
connect( &temporaryRulesMessages, SIGNAL( gotMessage( const QString& )),
this, SLOT( gotTemporaryRulesMessage( const QString& )));
connect( &rulesUpdatedTimer, SIGNAL( timeout()), this, SLOT( writeWindowRules()));
updateXTime(); // needed for proper initialization of user_time in Client ctor
delayFocusTimer = 0;
if ( restore )
loadSessionInfo();
loadWindowRules();
(void) QApplication::desktop(); // trigger creation of desktop widget
desktop_widget = new QWidget( 0, Qt::Desktop );
desktop_widget->setObjectName( "desktop_widget" );
desktop_widget->setAttribute( Qt::WA_PaintUnclipped );
// call this before XSelectInput() on the root window
startup = new KStartupInfo(
KStartupInfo::DisableKWinModule | KStartupInfo::AnnounceSilenceChanges, this );
// select windowmanager privileges
XSelectInput(display(), rootWindow(),
KeyPressMask |
PropertyChangeMask |
ColormapChangeMask |
SubstructureRedirectMask |
SubstructureNotifyMask |
FocusChangeMask | // for NotifyDetailNone
ExposureMask
);
Extensions::init();
setupCompositing();
// compatibility
long data = 1;
XChangeProperty(
display(),
rootWindow(),
atoms->kwin_running,
atoms->kwin_running,
32,
PropModeAppend,
(unsigned char*) &data,
1
);
client_keys = new KActionCollection( this );
initShortcuts();
tab_box = new TabBox( this );
popupinfo = new PopupInfo( this );
init();
connect( kapp->desktop(), SIGNAL( resized( int )), SLOT( desktopResized()));
}
void Workspace::init()
{
if( options->electricBorders() == Options::ElectricAlways )
reserveElectricBorderSwitching( true );
updateElectricBorders();
// not used yet
// topDock = 0L;
// maximizedWindowCounter = 0;
supportWindow = new QWidget;
XLowerWindow( display(), supportWindow->winId()); // see usage in layers.cpp
XSetWindowAttributes attr;
attr.override_redirect = 1;
null_focus_window = XCreateWindow( display(), rootWindow(), -1,-1, 1, 1, 0, CopyFromParent,
InputOnly, CopyFromParent, CWOverrideRedirect, &attr );
XMapWindow(display(), null_focus_window);
unsigned long protocols[ 5 ] =
{
NET::Supported |
NET::SupportingWMCheck |
NET::ClientList |
NET::ClientListStacking |
NET::DesktopGeometry |
NET::NumberOfDesktops |
NET::CurrentDesktop |
NET::ActiveWindow |
NET::WorkArea |
NET::CloseWindow |
NET::DesktopNames |
NET::WMName |
NET::WMVisibleName |
NET::WMDesktop |
NET::WMWindowType |
NET::WMState |
NET::WMStrut |
NET::WMIconGeometry |
NET::WMIcon |
NET::WMPid |
NET::WMMoveResize |
NET::WMFrameExtents |
NET::WMPing
,
NET::NormalMask |
NET::DesktopMask |
NET::DockMask |
NET::ToolbarMask |
NET::MenuMask |
NET::DialogMask |
NET::OverrideMask |
NET::TopMenuMask |
NET::UtilityMask |
NET::SplashMask |
0
,
NET::Modal |
// NET::Sticky | // large desktops not supported (and probably never will be)
NET::MaxVert |
NET::MaxHoriz |
NET::Shaded |
NET::SkipTaskbar |
NET::KeepAbove |
// NET::StaysOnTop | the same like KeepAbove
NET::SkipPager |
NET::Hidden |
NET::FullScreen |
NET::KeepBelow |
NET::DemandsAttention |
0
,
NET::WM2UserTime |
NET::WM2StartupId |
NET::WM2AllowedActions |
NET::WM2RestackWindow |
NET::WM2MoveResizeWindow |
NET::WM2ExtendedStrut |
NET::WM2KDETemporaryRules |
NET::WM2ShowingDesktop |
NET::WM2DesktopLayout |
NET::WM2FullPlacement |
0
,
NET::ActionMove |
NET::ActionResize |
NET::ActionMinimize |
NET::ActionShade |
// NET::ActionStick | // Sticky state is not supported
NET::ActionMaxVert |
NET::ActionMaxHoriz |
NET::ActionFullScreen |
NET::ActionChangeDesktop |
NET::ActionClose |
0
,
};
QX11Info info;
rootInfo = new RootInfo( this, display(), supportWindow->winId(), "KWin",
protocols, 5, info.screen() );
loadDesktopSettings();
updateDesktopLayout();
// extra NETRootInfo instance in Client mode is needed to get the values of the properties
NETRootInfo client_info( display(), NET::ActiveWindow | NET::CurrentDesktop );
int initial_desktop;
if( !kapp->isSessionRestored())
initial_desktop = client_info.currentDesktop();
else
{
KConfigGroup group( kapp->sessionConfig(), "Session" );
initial_desktop = group.readEntry( "desktop", 1 );
}
if( !setCurrentDesktop( initial_desktop ))
setCurrentDesktop( 1 );
// now we know how many desktops we'll, thus, we initialize the positioning object
initPositioning = new Placement(this);
reconfigureTimer.setSingleShot( true );
updateToolWindowsTimer.setSingleShot( true );
connect(&reconfigureTimer, SIGNAL(timeout()), this,
SLOT(slotReconfigure()));
connect( &updateToolWindowsTimer, SIGNAL( timeout()), this, SLOT( slotUpdateToolWindows()));
connect( &compositeTimer, SIGNAL( timeout()), SLOT( performCompositing()));
connect(KGlobalSettings::self(), SIGNAL(appearanceChanged()), this,
SLOT(slotReconfigure()));
connect(KGlobalSettings::self(), SIGNAL(settingsChanged(int)), this,
SLOT(slotSettingsChanged(int)));
connect(KGlobalSettings::self(), SIGNAL(blockShortcuts(int)), this,
SLOT(slotBlockShortcuts(int)));
active_client = NULL;
rootInfo->setActiveWindow( None );
focusToNull();
if( !kapp->isSessionRestored())
++block_focus; // because it will be set below
char nm[ 100 ];
sprintf( nm, "_KDE_TOPMENU_OWNER_S%d", DefaultScreen( display()));
Atom topmenu_atom = XInternAtom( display(), nm, False );
topmenu_selection = new KSelectionOwner( topmenu_atom );
topmenu_watcher = new KSelectionWatcher( topmenu_atom );
// TODO grabXServer(); - where exactly put this? topmenu selection claiming down belong must be before
{ // begin updates blocker block
StackingUpdatesBlocker blocker( this );
if( options->topMenuEnabled() && topmenu_selection->claim( false ))
setupTopMenuHandling(); // this can call updateStackingOrder()
else
lostTopMenuSelection();
unsigned int i, nwins;
Window root_return, parent_return, *wins;
XQueryTree(display(), rootWindow(), &root_return, &parent_return, &wins, &nwins);
for (i = 0; i < nwins; i++)
{
XWindowAttributes attr;
XGetWindowAttributes(display(), wins[i], &attr);
if (attr.override_redirect )
{
createUnmanaged( wins[ i ] );
continue;
}
if( topmenu_space && topmenu_space->winId() == wins[ i ] )
continue;
if (attr.map_state != IsUnmapped)
createClient( wins[i], true );
}
if ( wins )
XFree((void *) wins);
// propagate clients, will really happen at the end of the updates blocker block
updateStackingOrder( true );
updateClientArea();
// NETWM spec says we have to set it to (0,0) if we don't support it
NETPoint* viewports = new NETPoint[ number_of_desktops ];
rootInfo->setDesktopViewport( number_of_desktops, *viewports );
delete[] viewports;
QRect geom = QApplication::desktop()->geometry();
NETSize desktop_geometry;
desktop_geometry.width = geom.width();
desktop_geometry.height = geom.height();
rootInfo->setDesktopGeometry( -1, desktop_geometry );
setShowingDesktop( false );
} // end updates blocker block
Client* new_active_client = NULL;
if( !kapp->isSessionRestored())
{
--block_focus;
new_active_client = findClient( WindowMatchPredicate( client_info.activeWindow()));
}
if( new_active_client == NULL
&& activeClient() == NULL && should_get_focus.count() == 0 ) // no client activated in manage()
{
if( new_active_client == NULL )
new_active_client = topClientOnDesktop( currentDesktop());
if( new_active_client == NULL && !desktops.isEmpty() )
new_active_client = findDesktop( true, currentDesktop());
}
if( new_active_client != NULL )
activateClient( new_active_client );
// SELI TODO this won't work with unreasonable focus policies,
// and maybe in rare cases also if the selected client doesn't
// want focus
workspaceInit = false;
// TODO ungrabXServer()
}
Workspace::~Workspace()
{
finishCompositing();
blockStackingUpdates( true );
// TODO grabXServer();
// use stacking_order, so that kwin --replace keeps stacking order
for( ClientList::ConstIterator it = stacking_order.begin();
it != stacking_order.end();
++it )
{
// only release the window
(*it)->releaseWindow( true );
// No removeClient() is called, it does more than just removing.
// However, remove from some lists to e.g. prevent performTransiencyCheck()
// from crashing.
clients.remove( *it );
desktops.remove( *it );
}
for( UnmanagedList::ConstIterator it = unmanaged.begin();
it != unmanaged.end();
++it )
(*it)->release();
delete desktop_widget;
delete tab_box;
delete popupinfo;
delete popup;
XDeleteProperty(display(), rootWindow(), atoms->kwin_running);
writeWindowRules();
KGlobal::config()->sync();
delete rootInfo;
delete supportWindow;
delete mgr;
delete[] workarea;
delete[] screenarea;
delete startup;
delete initPositioning;
delete topmenu_watcher;
delete topmenu_selection;
delete topmenu_space;
// delete client_keys_dialog;
while( !rules.isEmpty())
{
delete rules.front();
rules.pop_front();
}
foreach ( SessionInfo* s, session )
delete s;
XDestroyWindow( display(), null_focus_window );
// TODO ungrabXServer();
_self = 0;
}
Client* Workspace::createClient( Window w, bool is_mapped )
{
StackingUpdatesBlocker blocker( this );
Client* c = new Client( this );
if( !c->manage( w, is_mapped ))
{
Client::deleteClient( c, Allowed );
return NULL;
}
addClient( c, Allowed );
if( scene )
scene->windowAdded( c );
if( effects )
static_cast<EffectsHandlerImpl*>(effects)->windowAdded( c->effectWindow());
return c;
}
Unmanaged* Workspace::createUnmanaged( Window w )
{
if( w == overlay )
return NULL;
Unmanaged* c = new Unmanaged( this );
if( !c->track( w ))
{
Unmanaged::deleteUnmanaged( c, Allowed );
return NULL;
}
addUnmanaged( c, Allowed );
if( scene )
scene->windowAdded( c );
if( effects )
static_cast<EffectsHandlerImpl*>(effects)->windowAdded( c->effectWindow());
return c;
}
void Workspace::addClient( Client* c, allowed_t )
{
Group* grp = findGroup( c->window());
if( grp != NULL )
grp->gotLeader( c );
if ( c->isDesktop() )
{
desktops.append( c );
if( active_client == NULL && should_get_focus.isEmpty() && c->isOnCurrentDesktop())
requestFocus( c ); // CHECKME? make sure desktop is active after startup if there's no other window active
}
else
{
updateFocusChains( c, FocusChainUpdate ); // add to focus chain if not already there
clients.append( c );
}
if( !unconstrained_stacking_order.contains( c ))
unconstrained_stacking_order.append( c ); // raise if it hasn't got any stacking position yet
if( !stacking_order.contains( c )) // it'll be updated later, and updateToolWindows() requires
stacking_order.append( c ); // c to be in stacking_order
if( c->isTopMenu())
addTopMenu( c );
updateClientArea(); // this cannot be in manage(), because the client got added only now
updateClientLayer( c );
if( c->isDesktop())
{
raiseClient( c );
// if there's no active client, make this desktop the active one
if( activeClient() == NULL && should_get_focus.count() == 0 )
activateClient( findDesktop( true, currentDesktop()));
}
c->checkActiveModal();
checkTransients( c->window()); // SELI does this really belong here?
updateStackingOrder( true ); // propagate new client
if( c->isUtility() || c->isMenu() || c->isToolbar())
updateToolWindows( true );
checkNonExistentClients();
if( tab_grab )
tab_box->reset( true );
}
void Workspace::addUnmanaged( Unmanaged* c, allowed_t )
{
unmanaged.append( c );
unmanaged_stacking_order.append( c );
}
/*
Destroys the client \a c
*/
void Workspace::removeClient( Client* c, allowed_t )
{
if (c == active_popup_client)
closeActivePopup();
if( client_keys_client == c )
setupWindowShortcutDone( false );
if( !c->shortcut().isEmpty())
c->setShortcut( QString() ); // remove from client_keys
if( c->isDialog())
Notify::raise( Notify::TransDelete );
if( c->isNormalWindow())
Notify::raise( Notify::Delete );
if( tab_grab )
{
if( tab_box->currentClient() == c )
tab_box->nextPrev( true );
}
Q_ASSERT( clients.contains( c ) || desktops.contains( c ));
clients.removeAll( c );
desktops.removeAll( c );
unconstrained_stacking_order.removeAll( c );
stacking_order.removeAll( c );
for( int i = 1;
i <= numberOfDesktops();
++i )
focus_chain[ i ].removeAll( c );
global_focus_chain.removeAll( c );
attention_chain.removeAll( c );
showing_desktop_clients.removeAll( c );
if( c->isTopMenu())
removeTopMenu( c );
Group* group = findGroup( c->window());
if( group != NULL )
group->lostLeader();
if ( c == most_recently_raised )
most_recently_raised = 0;
should_get_focus.removeAll( c );
Q_ASSERT( c != active_client );
if ( c == last_active_client )
last_active_client = 0;
if( c == pending_take_activity )
pending_take_activity = NULL;
if( c == delayfocus_client )
cancelDelayFocus();
updateStackingOrder( true );
if( tab_grab )
tab_box->reset( true );
updateClientArea();
}
void Workspace::removeUnmanaged( Unmanaged* c, allowed_t )
{
assert( unmanaged.contains( c ));
unmanaged.removeAll( c );
unmanaged_stacking_order.removeAll( c );
}
void Workspace::addDeleted( Deleted* c, allowed_t )
{
assert( !deleted.contains( c ));
deleted.append( c );
}
void Workspace::removeDeleted( Deleted* c, allowed_t )
{
assert( deleted.contains( c ));
if( scene )
scene->windowDeleted( c );
if( effects )
static_cast<EffectsHandlerImpl*>(effects)->windowDeleted( c->effectWindow());
deleted.removeAll( c );
}
void Workspace::updateFocusChains( Client* c, FocusChainChange change )
{
if( !c->wantsTabFocus()) // doesn't want tab focus, remove
{
for( int i=1;
i<= numberOfDesktops();
++i )
focus_chain[i].removeAll(c);
global_focus_chain.removeAll( c );
return;
}
if(c->desktop() == NET::OnAllDesktops)
{ //now on all desktops, add it to focus_chains it is not already in
for( int i=1; i<= numberOfDesktops(); i++)
{ // making first/last works only on current desktop, don't affect all desktops
if( i == currentDesktop()
&& ( change == FocusChainMakeFirst || change == FocusChainMakeLast ))
{
focus_chain[ i ].removeAll( c );
if( change == FocusChainMakeFirst )
focus_chain[ i ].append( c );
else
focus_chain[ i ].prepend( c );
}
else if( !focus_chain[ i ].contains( c ))
{ // add it after the active one
if( active_client != NULL && active_client != c
&& !focus_chain[ i ].isEmpty() && focus_chain[ i ].last() == active_client )
focus_chain[ i ].insert( focus_chain[ i ].size() - 1, c );
else
focus_chain[ i ].append( c ); // otherwise add as the first one
}
}
}
else //now only on desktop, remove it anywhere else
{
for( int i=1; i<= numberOfDesktops(); i++)
{
if( i == c->desktop())
{
if( change == FocusChainMakeFirst )
{
focus_chain[ i ].removeAll( c );
focus_chain[ i ].append( c );
}
else if( change == FocusChainMakeLast )
{
focus_chain[ i ].removeAll( c );
focus_chain[ i ].prepend( c );
}
else if( !focus_chain[ i ].contains( c ))
{ // add it after the active one
if( active_client != NULL && active_client != c
&& !focus_chain[ i ].isEmpty() && focus_chain[ i ].last() == active_client )
focus_chain[ i ].insert( focus_chain[ i ].size() - 1, c );
else
focus_chain[ i ].append( c ); // otherwise add as the first one
}
}
else
focus_chain[ i ].removeAll( c );
}
}
if( change == FocusChainMakeFirst )
{
global_focus_chain.removeAll( c );
global_focus_chain.append( c );
}
else if( change == FocusChainMakeLast )
{
global_focus_chain.removeAll( c );
global_focus_chain.prepend( c );
}
else if( !global_focus_chain.contains( c ))
{ // add it after the active one
if( active_client != NULL && active_client != c
&& !global_focus_chain.isEmpty() && global_focus_chain.last() == active_client )
global_focus_chain.insert( global_focus_chain.size() - 1, c );
else
global_focus_chain.append( c ); // otherwise add as the first one
}
}
void Workspace::updateCurrentTopMenu()
{
if( !managingTopMenus())
return;
// toplevel menubar handling
Client* menubar = 0;
bool block_desktop_menubar = false;
if( active_client )
{
// show the new menu bar first...
Client* menu_client = active_client;
for(;;)
{
if( menu_client->isFullScreen())
block_desktop_menubar = true;
for( ClientList::ConstIterator it = menu_client->transients().begin();
it != menu_client->transients().end();
++it )
if( (*it)->isTopMenu())
{
menubar = *it;
break;
}
if( menubar != NULL || !menu_client->isTransient())
break;
if( menu_client->isModal() || menu_client->transientFor() == NULL )
break; // don't use mainwindow's menu if this is modal or group transient
menu_client = menu_client->transientFor();
}
if( !menubar )
{ // try to find any topmenu from the application (#72113)
for( ClientList::ConstIterator it = active_client->group()->members().begin();
it != active_client->group()->members().end();
++it )
if( (*it)->isTopMenu())
{
menubar = *it;
break;
}
}
}
if( !menubar && !block_desktop_menubar && options->desktopTopMenu())
{
// Find the menubar of the desktop
Client* desktop = findDesktop( true, currentDesktop());
if( desktop != NULL )
{
for( ClientList::ConstIterator it = desktop->transients().begin();
it != desktop->transients().end();
++it )
if( (*it)->isTopMenu())
{
menubar = *it;
break;
}
}
// TODO to be cleaned app with window grouping
// Without qt-copy patch #0009, the topmenu and desktop are not in the same group,
// thus the topmenu is not transient for it :-/.
if( menubar == NULL )
{
for( ClientList::ConstIterator it = topmenus.begin();
it != topmenus.end();
++it )
if( (*it)->wasOriginallyGroupTransient()) // kdesktop's topmenu has WM_TRANSIENT_FOR
{ // set pointing to the root window
menubar = *it; // to recognize it here
break; // Also, with the xroot hack in kdesktop,
} // there's no NET::Desktop window to be transient for
}
}
// kDebug() << "CURRENT TOPMENU:" << menubar << ":" << active_client;
if ( menubar )
{
if( active_client && !menubar->isOnDesktop( active_client->desktop()))
menubar->setDesktop( active_client->desktop());
menubar->hideClient( false );
topmenu_space->hide();
// make it appear like it's been raised manually - it's in the Dock layer anyway,
// and not raising it could mess up stacking order of topmenus within one application,
// and thus break raising of mainclients in raiseClient()
unconstrained_stacking_order.removeAll( menubar );
unconstrained_stacking_order.append( menubar );
}
else if( !block_desktop_menubar )
{ // no topmenu active - show the space window, so that there's not empty space
topmenu_space->show();
}
// ... then hide the other ones. Avoids flickers.
for ( ClientList::ConstIterator it = clients.begin(); it != clients.end(); ++it)
{
if( (*it)->isTopMenu() && (*it) != menubar )
(*it)->hideClient( true );
}
}
void Workspace::updateToolWindows( bool also_hide )
{
// TODO what if Client's transiency/group changes? should this be called too? (I'm paranoid, am I not?)
if( !options->hideUtilityWindowsForInactive )
{
for( ClientList::ConstIterator it = clients.begin();
it != clients.end();
++it )
(*it)->hideClient( false );
return;
}
const Group* group = NULL;
const Client* client = active_client;
// Go up in transiency hiearchy, if the top is found, only tool transients for the top mainwindow
// will be shown; if a group transient is group, all tools in the group will be shown
while( client != NULL )
{
if( !client->isTransient())
break;
if( client->groupTransient())
{
group = client->group();
break;
}
client = client->transientFor();
}
// use stacking order only to reduce flicker, it doesn't matter if block_stacking_updates == 0,
// i.e. if it's not up to date
// SELI but maybe it should - what if a new client has been added that's not in stacking order yet?
ClientList to_show, to_hide;
for( ClientList::ConstIterator it = stacking_order.begin();
it != stacking_order.end();
++it )
{
if( (*it)->isUtility() || (*it)->isMenu() || (*it)->isToolbar())
{
bool show = true;
if( !(*it)->isTransient())
{
if( (*it)->group()->members().count() == 1 ) // has its own group, keep always visible
show = true;
else if( client != NULL && (*it)->group() == client->group())
show = true;
else
show = false;
}
else
{
if( group != NULL && (*it)->group() == group )
show = true;
else if( client != NULL && client->hasTransient( (*it), true ))
show = true;
else
show = false;
}
if( !show && also_hide )
{
const ClientList mainclients = (*it)->mainClients();
// don't hide utility windows which are standalone(?) or
// have e.g. kicker as mainwindow
if( mainclients.isEmpty())
show = true;
for( ClientList::ConstIterator it2 = mainclients.begin();
it2 != mainclients.end();
++it2 )
{
if( (*it2)->isSpecialWindow())
show = true;
}
if( !show )
to_hide.append( *it );
}
if( show )
to_show.append( *it );
}
} // first show new ones, then hide
for( int i = to_show.size() - 1;
i >= 0;
--i ) //from topmost
// TODO since this is in stacking order, the order of taskbar entries changes :(
to_show.at( i )->hideClient( false );
if( also_hide )
{
for( ClientList::ConstIterator it = to_hide.begin();
it != to_hide.end();
++it ) // from bottommost
(*it)->hideClient( true );
updateToolWindowsTimer.stop();
}
else // setActiveClient() is after called with NULL client, quickly followed
{ // by setting a new client, which would result in flickering
updateToolWindowsTimer.start( 50 );
}
}
void Workspace::slotUpdateToolWindows()
{
updateToolWindows( true );
}
/*!
Updates the current colormap according to the currently active client
*/
void Workspace::updateColormap()
{
Colormap cmap = default_colormap;
if ( activeClient() && activeClient()->colormap() != None )
cmap = activeClient()->colormap();
if ( cmap != installed_colormap )
{
XInstallColormap(display(), cmap );
installed_colormap = cmap;
}
}
void Workspace::slotReloadConfig()
{
reconfigure();
}
void Workspace::reconfigure()
{
reconfigureTimer.start( 200 );
}
void Workspace::slotSettingsChanged(int category)
{
kDebug(1212) << "Workspace::slotSettingsChanged()";
if( category == KGlobalSettings::SETTINGS_SHORTCUTS )
readShortcuts();
}
/*!
Reread settings
*/
KWIN_PROCEDURE( CheckBorderSizesProcedure, Client, cl->checkBorderSizes() );
void Workspace::slotReconfigure()
{
kDebug(1212) << "Workspace::slotReconfigure()";
reconfigureTimer.stop();
if( options->electricBorders() == Options::ElectricAlways )
reserveElectricBorderSwitching( false );
KGlobal::config()->reparseConfiguration();
unsigned long changed = options->updateSettings();
tab_box->reconfigure();
popupinfo->reconfigure();
initPositioning->reinitCascading( 0 );
readShortcuts();
forEachClient( CheckIgnoreFocusStealingProcedure());
updateToolWindows( true );
if( mgr->reset( changed ))
{ // decorations need to be recreated
#if 0 // This actually seems to make things worse now
QWidget curtain;
curtain.setBackgroundMode( NoBackground );
curtain.setGeometry( QApplication::desktop()->geometry() );
curtain.show();
#endif
for( ClientList::ConstIterator it = clients.begin();
it != clients.end();
++it )
{
(*it)->updateDecoration( true, true );
}
mgr->destroyPreviousPlugin();
}
else
{
forEachClient( CheckBorderSizesProcedure());
}
if( options->electricBorders() == Options::ElectricAlways )
reserveElectricBorderSwitching( true );
updateElectricBorders();
if( options->topMenuEnabled() && !managingTopMenus())
{
if( topmenu_selection->claim( false ))
setupTopMenuHandling();
else
lostTopMenuSelection();
}
else if( !options->topMenuEnabled() && managingTopMenus())
{
topmenu_selection->release();
lostTopMenuSelection();
}
topmenu_height = 0; // invalidate used menu height
if( managingTopMenus())
{
updateTopMenuGeometry();
updateCurrentTopMenu();
}
if( options->useCompositing )
{
setupCompositing();
if( effects ) // setupCompositing() may fail
effects->reconfigure();
}
else
finishCompositing();
loadWindowRules();
for( ClientList::Iterator it = clients.begin();
it != clients.end();
++it )
{
(*it)->setupWindowRules( true );
(*it)->applyWindowRules();
discardUsedWindowRules( *it, false );
}
}
void Workspace::loadDesktopSettings()
{
KSharedConfig::Ptr c = KGlobal::config();
QString groupname;
if (screen_number == 0)
groupname = "Desktops";
else
groupname.sprintf("Desktops-screen-%d", screen_number);
KConfigGroup group(c,groupname);
int n = group.readEntry("Number", 4);
number_of_desktops = n;
delete workarea;
workarea = new QRect[ n + 1 ];
delete screenarea;
screenarea = NULL;
rootInfo->setNumberOfDesktops( number_of_desktops );
desktop_focus_chain.resize( n );
// make it +1, so that it can be accessed as [1..numberofdesktops]
focus_chain.resize( n + 1 );
for(int i = 1; i <= n; i++)
{
QString s = group.readEntry(QString("Name_%1").arg(i),
i18n("Desktop %1", i));
rootInfo->setDesktopName( i, s.toUtf8().data() );
desktop_focus_chain[i-1] = i;
}
}
void Workspace::saveDesktopSettings()
{
KSharedConfig::Ptr c = KGlobal::config();
QString groupname;
if (screen_number == 0)
groupname = "Desktops";
else
groupname.sprintf("Desktops-screen-%d", screen_number);
KConfigGroup group(c,groupname);
group.writeEntry("Number", number_of_desktops );
for(int i = 1; i <= number_of_desktops; i++)
{
QString s = desktopName( i );
QString defaultvalue = i18n("Desktop %1", i);
if ( s.isEmpty() )
{
s = defaultvalue;
rootInfo->setDesktopName( i, s.toUtf8().data() );
}
if (s != defaultvalue)
{
group.writeEntry( QString("Name_%1").arg(i), s );
}
else
{
QString currentvalue = group.readEntry(QString("Name_%1").arg(i), QString());
if (currentvalue != defaultvalue)
group.writeEntry( QString("Name_%1").arg(i), "" );
}
}
}
QStringList Workspace::configModules(bool controlCenter)
{
QStringList args;
args << "kde-kwindecoration.desktop";
if (controlCenter)
args << "kde-kwinoptions.desktop";
else if (KAuthorized::authorizeControlModule("kde-kwinoptions.desktop"))
args << "kwinactions" << "kwinfocus" << "kwinmoving" << "kwinadvanced" << "kwinrules" << "kwincompositing" << "kwineffects";
return args;
}
void Workspace::configureWM()
{
KToolInvocation::kdeinitExec( "kcmshell", configModules(false) );
}
/*!
avoids managing a window with title \a title
*/
void Workspace::doNotManage( const QString &title )
{
doNotManageList.append( title );
}
/*!
Hack for java applets
*/
bool Workspace::isNotManaged( const QString& title )
{
for ( QStringList::Iterator it = doNotManageList.begin(); it != doNotManageList.end(); ++it )
{
QRegExp r( (*it) );
if (r.indexIn(title) != -1)
{
doNotManageList.erase( it );
return true;
}
}
return false;
}
/*!
Refreshes all the client windows
*/
void Workspace::refresh()
{
QWidget w;
w.setGeometry( QApplication::desktop()->geometry() );
w.show();
w.hide();
QApplication::flush();
}
/*!
During virt. desktop switching, desktop areas covered by windows that are
going to be hidden are first obscured by new windows with no background
( i.e. transparent ) placed right below the windows. These invisible windows
are removed after the switch is complete.
Reduces desktop ( wallpaper ) repaints during desktop switching
*/
class ObscuringWindows
{
public:
~ObscuringWindows();
void create( Client* c );
private:
QList<Window> obscuring_windows;
static QList<Window>* cached;
static unsigned int max_cache_size;
};
QList<Window>* ObscuringWindows::cached = 0;
unsigned int ObscuringWindows::max_cache_size = 0;
void ObscuringWindows::create( Client* c )
{
if( compositing()) // not needed with compositing
return;
if( cached == 0 )
cached = new QList<Window>;
Window obs_win;
XWindowChanges chngs;
int mask = CWSibling | CWStackMode;
if( cached->count() > 0 )
{
cached->removeAll( obs_win = cached->first());
chngs.x = c->x();
chngs.y = c->y();
chngs.width = c->width();
chngs.height = c->height();
mask |= CWX | CWY | CWWidth | CWHeight;
}
else
{
XSetWindowAttributes a;
a.background_pixmap = None;
a.override_redirect = True;
obs_win = XCreateWindow( display(), rootWindow(), c->x(), c->y(),
c->width(), c->height(), 0, CopyFromParent, InputOutput,
CopyFromParent, CWBackPixmap | CWOverrideRedirect, &a );
}
chngs.sibling = c->frameId();
chngs.stack_mode = Below;
XConfigureWindow( display(), obs_win, mask, &chngs );
XMapWindow( display(), obs_win );
obscuring_windows.append( obs_win );
}
ObscuringWindows::~ObscuringWindows()
{
max_cache_size = qMax( ( int )max_cache_size, obscuring_windows.count() + 4 ) - 1;
for( QList<Window>::ConstIterator it = obscuring_windows.begin();
it != obscuring_windows.end();
++it )
{
XUnmapWindow( display(), *it );
if( cached->count() < ( int )max_cache_size )
cached->prepend( *it );
else
XDestroyWindow( display(), *it );
}
}
/*!
Sets the current desktop to \a new_desktop
Shows/Hides windows according to the stacking order and finally
propages the new desktop to the world
*/
bool Workspace::setCurrentDesktop( int new_desktop )
{
if (new_desktop < 1 || new_desktop > number_of_desktops )
return false;
closeActivePopup();
++block_focus;
// TODO Q_ASSERT( block_stacking_updates == 0 ); // make sure stacking_order is up to date
StackingUpdatesBlocker blocker( this );
int old_desktop = current_desktop;
if (new_desktop != current_desktop)
{
++block_showing_desktop;
/*
optimized Desktop switching: unmapping done from back to front
mapping done from front to back => less exposure events
*/
Notify::raise((Notify::Event) (Notify::DesktopChange+new_desktop));
ObscuringWindows obs_wins;
current_desktop = new_desktop; // change the desktop (so that Client::updateVisibility() works)
for ( ClientList::ConstIterator it = stacking_order.begin(); it != stacking_order.end(); ++it)
if ( !(*it)->isOnDesktop( new_desktop ) && (*it) != movingClient )
{
if( (*it)->isShown( true ) && (*it)->isOnDesktop( old_desktop ))
obs_wins.create( *it );
(*it)->updateVisibility();
}
rootInfo->setCurrentDesktop( current_desktop ); // now propagate the change, after hiding, before showing
if( movingClient && !movingClient->isOnDesktop( new_desktop ))
movingClient->setDesktop( new_desktop );
for( int i = stacking_order.size() - 1; i >= 0 ; --i )
if ( stacking_order.at( i )->isOnDesktop( new_desktop ) )
stacking_order.at( i )->updateVisibility();
--block_showing_desktop;
if( showingDesktop()) // do this only after desktop change to avoid flicker
resetShowingDesktop( false );
}
// restore the focus on this desktop
--block_focus;
Client* c = 0;
if ( options->focusPolicyIsReasonable())
{
// Search in focus chain
if ( movingClient != NULL && active_client == movingClient
&& focus_chain[currentDesktop()].contains( active_client )
&& active_client->isShown( true ) && active_client->isOnCurrentDesktop())
{
c = active_client; // the requestFocus below will fail, as the client is already active
}
if( !c )
{
for( int i = focus_chain[ currentDesktop() ].size() - 1;
i >= 0;
--i )
{
if( focus_chain[ currentDesktop() ].at( i )->isShown( false )
&& focus_chain[ currentDesktop() ].at( i )->isOnCurrentDesktop())
{
c = focus_chain[ currentDesktop() ].at( i );
break;
}
}
}
}
//if "unreasonable focus policy"
// and active_client is on_all_desktops and under mouse (hence == old_active_client),
// conserve focus (thanks to Volker Schatz <V.Schatz at thphys.uni-heidelberg.de>)
else if( active_client && active_client->isShown( true ) && active_client->isOnCurrentDesktop())
c = active_client;
if( c == NULL && !desktops.isEmpty())
c = findDesktop( true, currentDesktop());
if( c != active_client )
setActiveClient( NULL, Allowed );
if ( c )
requestFocus( c );
else if( !desktops.isEmpty() )
requestFocus( findDesktop( true, currentDesktop()));
else
focusToNull();
updateCurrentTopMenu();
// Update focus chain:
// If input: chain = { 1, 2, 3, 4 } and currentDesktop() = 3,
// Output: chain = { 3, 1, 2, 4 }.
// kDebug(1212) << QString("Switching to desktop #%1, at focus_chain index %2\n")
// .arg(currentDesktop()).arg(desktop_focus_chain.find( currentDesktop() ));
for( int i = desktop_focus_chain.indexOf( currentDesktop() ); i > 0; i-- )
desktop_focus_chain[i] = desktop_focus_chain[i-1];
desktop_focus_chain[0] = currentDesktop();
// QString s = "desktop_focus_chain[] = { ";
// for( uint i = 0; i < desktop_focus_chain.size(); i++ )
// s += QString::number(desktop_focus_chain[i]) + ", ";
// kDebug(1212) << s << "}\n";
if( old_desktop != 0 ) // not for the very first time
popupinfo->showInfo( desktopName(currentDesktop()) );
if( effects != NULL && old_desktop != 0 && old_desktop != new_desktop )
static_cast<EffectsHandlerImpl*>(effects)->desktopChanged( old_desktop );
if( compositing())
addRepaintFull();
return true;
}
// called only from DCOP
void Workspace::nextDesktop()
{
int desktop = currentDesktop() + 1;
setCurrentDesktop(desktop > numberOfDesktops() ? 1 : desktop);
}
// called only from DCOP
void Workspace::previousDesktop()
{
int desktop = currentDesktop() - 1;
setCurrentDesktop(desktop > 0 ? desktop : numberOfDesktops());
}
int Workspace::desktopToRight( int desktop ) const
{
int x,y;
Qt::Orientation orientation;
calcDesktopLayout( &x, &y, &orientation );
int dt = desktop-1;
if (orientation == Qt::Vertical)
{
dt += y;
if ( dt >= numberOfDesktops() )
{
if ( options->rollOverDesktops )
dt -= numberOfDesktops();
else
return desktop;
}
}
else
{
int d = (dt % x) + 1;
if ( d >= x )
{
if ( options->rollOverDesktops )
d -= x;
else
return desktop;
}
dt = dt - (dt % x) + d;
}
return dt+1;
}
int Workspace::desktopToLeft( int desktop ) const
{
int x,y;
Qt::Orientation orientation;
calcDesktopLayout( &x, &y, &orientation );
int dt = desktop-1;
if (orientation == Qt::Vertical)
{
dt -= y;
if ( dt < 0 )
{
if ( options->rollOverDesktops )
dt += numberOfDesktops();
else
return desktop;
}
}
else
{
int d = (dt % x) - 1;
if ( d < 0 )
{
if ( options->rollOverDesktops )
d += x;
else
return desktop;
}
dt = dt - (dt % x) + d;
}
return dt+1;
}
int Workspace::desktopUp( int desktop ) const
{
int x,y;
Qt::Orientation orientation;
calcDesktopLayout( &x, &y, &orientation);
int dt = desktop-1;
if (orientation == Qt::Horizontal)
{
dt -= x;
if ( dt < 0 )
{
if ( options->rollOverDesktops )
dt += numberOfDesktops();
else
return desktop;
}
}
else
{
int d = (dt % y) - 1;
if ( d < 0 )
{
if ( options->rollOverDesktops )
d += y;
else
return desktop;
}
dt = dt - (dt % y) + d;
}
return dt+1;
}
int Workspace::desktopDown( int desktop ) const
{
int x,y;
Qt::Orientation orientation;
calcDesktopLayout( &x, &y, &orientation);
int dt = desktop-1;
if (orientation == Qt::Horizontal)
{
dt += x;
if ( dt >= numberOfDesktops() )
{
if ( options->rollOverDesktops )
dt -= numberOfDesktops();
else
return desktop;
}
}
else
{
int d = (dt % y) + 1;
if ( d >= y )
{
if ( options->rollOverDesktops )
d -= y;
else
return desktop;
}
dt = dt - (dt % y) + d;
}
return dt+1;
}
/*!
Sets the number of virtual desktops to \a n
*/
void Workspace::setNumberOfDesktops( int n )
{
if ( n == number_of_desktops )
return;
int old_number_of_desktops = number_of_desktops;
number_of_desktops = n;
if( currentDesktop() > numberOfDesktops())
setCurrentDesktop( numberOfDesktops());
// if increasing the number, do the resizing now,
// otherwise after the moving of windows to still existing desktops
if( old_number_of_desktops < number_of_desktops )
{
rootInfo->setNumberOfDesktops( number_of_desktops );
NETPoint* viewports = new NETPoint[ number_of_desktops ];
rootInfo->setDesktopViewport( number_of_desktops, *viewports );
delete[] viewports;
updateClientArea( true );
focus_chain.resize( number_of_desktops + 1 );
}
// if the number of desktops decreased, move all
// windows that would be hidden to the last visible desktop
if( old_number_of_desktops > number_of_desktops )
{
for( ClientList::ConstIterator it = clients.begin();
it != clients.end();
++it)
{
if( !(*it)->isOnAllDesktops() && (*it)->desktop() > numberOfDesktops())
sendClientToDesktop( *it, numberOfDesktops(), true );
}
}
if( old_number_of_desktops > number_of_desktops )
{
rootInfo->setNumberOfDesktops( number_of_desktops );
NETPoint* viewports = new NETPoint[ number_of_desktops ];
rootInfo->setDesktopViewport( number_of_desktops, *viewports );
delete[] viewports;
updateClientArea( true );
focus_chain.resize( number_of_desktops + 1 );
}
saveDesktopSettings();
// Resize and reset the desktop focus chain.
desktop_focus_chain.resize( n );
for( int i = 0; i < (int)desktop_focus_chain.size(); i++ )
desktop_focus_chain[i] = i+1;
}
/*!
Sends client \a c to desktop \a desk.
Takes care of transients as well.
*/
void Workspace::sendClientToDesktop( Client* c, int desk, bool dont_activate )
{
bool was_on_desktop = c->isOnDesktop( desk ) || c->isOnAllDesktops();
c->setDesktop( desk );
if ( c->desktop() != desk ) // no change or desktop forced
return;
desk = c->desktop(); // Client did range checking
if ( c->isOnDesktop( currentDesktop() ) )
{
if ( c->wantsTabFocus() && options->focusPolicyIsReasonable()
&& !was_on_desktop // for stickyness changes
&& !dont_activate )
requestFocus( c );
else
restackClientUnderActive( c );
}
else
{
raiseClient( c );
}
ClientList transients_stacking_order = ensureStackingOrder( c->transients());
for( ClientList::ConstIterator it = transients_stacking_order.begin();
it != transients_stacking_order.end();
++it )
sendClientToDesktop( *it, desk, dont_activate );
updateClientArea();
}
int Workspace::numScreens() const
{
if( !options->xineramaEnabled )
return 1;
return qApp->desktop()->numScreens();
}
int Workspace::activeScreen() const
{
if( !options->xineramaEnabled )
return 0;
if( !options->activeMouseScreen )
{
if( activeClient() != NULL && !activeClient()->isOnScreen( active_screen ))
return qApp->desktop()->screenNumber( activeClient()->geometry().center());
return active_screen;
}
return qApp->desktop()->screenNumber( cursorPos());
}
// check whether a client moved completely out of what's considered the active screen,
// if yes, set a new active screen
void Workspace::checkActiveScreen( const Client* c )
{
if( !options->xineramaEnabled )
return;
if( !c->isActive())
return;
if( !c->isOnScreen( active_screen ))
active_screen = c->screen();
}
// called e.g. when a user clicks on a window, set active screen to be the screen
// where the click occurred
void Workspace::setActiveScreenMouse( QPoint mousepos )
{
if( !options->xineramaEnabled )
return;
active_screen = qApp->desktop()->screenNumber( mousepos );
}
QRect Workspace::screenGeometry( int screen ) const
{
if( !options->xineramaEnabled )
return qApp->desktop()->geometry();
return qApp->desktop()->screenGeometry( screen );
}
int Workspace::screenNumber( QPoint pos ) const
{
if( !options->xineramaEnabled )
return 0;
return qApp->desktop()->screenNumber( pos );
}
void Workspace::sendClientToScreen( Client* c, int screen )
{
if( c->screen() == screen ) // don't use isOnScreen(), that's true even when only partially
return;
GeometryUpdatesBlocker blocker( c );
QRect old_sarea = clientArea( MaximizeArea, c );
QRect sarea = clientArea( MaximizeArea, screen, c->desktop());
c->setGeometry( sarea.x() - old_sarea.x() + c->x(), sarea.y() - old_sarea.y() + c->y(),
c->size().width(), c->size().height());
c->checkWorkspacePosition();
ClientList transients_stacking_order = ensureStackingOrder( c->transients());
for( ClientList::ConstIterator it = transients_stacking_order.begin();
it != transients_stacking_order.end();
++it )
sendClientToScreen( *it, screen );
if( c->isActive())
active_screen = screen;
}
void Workspace::updateDesktopLayout()
{
// rootInfo->desktopLayoutCorner(); // I don't find this worth bothering, feel free to
layoutOrientation = ( rootInfo->desktopLayoutOrientation() == NET::OrientationHorizontal
? Qt::Horizontal : Qt::Vertical );
layoutX = rootInfo->desktopLayoutColumnsRows().width();
layoutY = rootInfo->desktopLayoutColumnsRows().height();
if( layoutX == 0 && layoutY == 0 ) // not given, set default layout
layoutY = 2;
}
void Workspace::calcDesktopLayout(int* xp, int* yp, Qt::Orientation* orientation) const
{
int x = layoutX; // <= 0 means compute it from the other and total number of desktops
int y = layoutY;
if((x <= 0) && (y > 0))
x = (numberOfDesktops()+y-1) / y;
else if((y <=0) && (x > 0))
y = (numberOfDesktops()+x-1) / x;
if(x <=0)
x = 1;
if (y <= 0)
y = 1;
*xp = x;
*yp = y;
*orientation = layoutOrientation;
}
void Workspace::killWindowId( Window window_to_kill )
{
if( window_to_kill == None )
return;
Window window = window_to_kill;
Client* client = NULL;
for(;;)
{
client = findClient( FrameIdMatchPredicate( window ));
if( client != NULL ) // found the client
break;
Window parent, root;
Window* children;
unsigned int children_count;
XQueryTree( display(), window, &root, &parent, &children, &children_count );
if( children != NULL )
XFree( children );
if( window == root ) // we didn't find the client, probably an override-redirect window
break;
window = parent; // go up
}
if( client != NULL )
client->killWindow();
else
XKillClient( display(), window_to_kill );
}
void Workspace::sendPingToWindow( Window window, Time timestamp )
{
rootInfo->sendPing( window, timestamp );
}
void Workspace::sendTakeActivity( Client* c, Time timestamp, long flags )
{
rootInfo->takeActivity( c->window(), timestamp, flags );
pending_take_activity = c;
}
/*!
Takes a screenshot of the current window and puts it in the clipboard.
*/
void Workspace::slotGrabWindow()
{
if ( active_client )
{
QPixmap snapshot = QPixmap::grabWindow( active_client->frameId() );
//No XShape - no work.
if( Extensions::shapeAvailable())
{
//As the first step, get the mask from XShape.
int count, order;
XRectangle* rects = XShapeGetRectangles( display(), active_client->frameId(),
ShapeBounding, &count, &order);
//The ShapeBounding region is the outermost shape of the window;
//ShapeBounding - ShapeClipping is defined to be the border.
//Since the border area is part of the window, we use bounding
// to limit our work region
if (rects)
{
//Create a QRegion from the rectangles describing the bounding mask.
QRegion contents;
for (int pos = 0; pos < count; pos++)
contents += QRegion(rects[pos].x, rects[pos].y,
rects[pos].width, rects[pos].height);
XFree(rects);
//Create the bounding box.
QRegion bbox(0, 0, snapshot.width(), snapshot.height());
//Get the masked away area.
QRegion maskedAway = bbox - contents;
QVector<QRect> maskedAwayRects = maskedAway.rects();
//Construct a bitmap mask from the rectangles
QBitmap mask( snapshot.width(), snapshot.height());
QPainter p(&mask);
p.fillRect(0, 0, mask.width(), mask.height(), Qt::color1);
for (int pos = 0; pos < maskedAwayRects.count(); pos++)
p.fillRect(maskedAwayRects[pos], Qt::color0);
p.end();
snapshot.setMask(mask);
}
}
QClipboard *cb = QApplication::clipboard();
cb->setPixmap( snapshot );
}
else
slotGrabDesktop();
}
/*!
Takes a screenshot of the whole desktop and puts it in the clipboard.
*/
void Workspace::slotGrabDesktop()
{
QPixmap p = QPixmap::grabWindow( rootWindow() );
QClipboard *cb = QApplication::clipboard();
cb->setPixmap( p );
}
/*!
Invokes keyboard mouse emulation
*/
void Workspace::slotMouseEmulation()
{
if ( mouse_emulation )
{
ungrabXKeyboard();
mouse_emulation = false;
return;
}
if( grabXKeyboard())
{
mouse_emulation = true;
mouse_emulation_state = 0;
mouse_emulation_window = 0;
}
}
/*!
Returns the child window under the mouse and activates the
respective client if necessary.
Auxiliary function for the mouse emulation system.
*/
WId Workspace::getMouseEmulationWindow()
{
Window root;
Window child = rootWindow();
int root_x, root_y, lx, ly;
uint state;
Window w;
Client * c = 0;
do
{
w = child;
if (!c)
c = findClient( FrameIdMatchPredicate( w ));
XQueryPointer( display(), w, &root, &child,
&root_x, &root_y, &lx, &ly, &state );
} while ( child != None && child != w );
if ( c && !c->isActive() )
activateClient( c );
return (WId) w;
}
/*!
Sends a faked mouse event to the specified window. Returns the new button state.
*/
unsigned int Workspace::sendFakedMouseEvent( QPoint pos, WId w, MouseEmulation type, int button, unsigned int state )
{
if ( !w )
return state;
QWidget* widget = QWidget::find( w );
if ( (!widget || qobject_cast<QToolButton*>(widget)) && !findClient( WindowMatchPredicate( w )) )
{
int x, y;
Window xw;
XTranslateCoordinates( display(), rootWindow(), w, pos.x(), pos.y(), &x, &y, &xw );
if ( type == EmuMove )
{ // motion notify events
XEvent e;
e.type = MotionNotify;
e.xmotion.window = w;
e.xmotion.root = rootWindow();
e.xmotion.subwindow = w;
e.xmotion.time = xTime();
e.xmotion.x = x;
e.xmotion.y = y;
e.xmotion.x_root = pos.x();
e.xmotion.y_root = pos.y();
e.xmotion.state = state;
e.xmotion.is_hint = NotifyNormal;
XSendEvent( display(), w, true, ButtonMotionMask, &e );
}
else
{
XEvent e;
e.type = type == EmuRelease ? ButtonRelease : ButtonPress;
e.xbutton.window = w;
e.xbutton.root = rootWindow();
e.xbutton.subwindow = w;
e.xbutton.time = xTime();
e.xbutton.x = x;
e.xbutton.y = y;
e.xbutton.x_root = pos.x();
e.xbutton.y_root = pos.y();
e.xbutton.state = state;
e.xbutton.button = button;
XSendEvent( display(), w, true, ButtonPressMask, &e );
if ( type == EmuPress )
{
switch ( button )
{
case 2:
state |= Button2Mask;
break;
case 3:
state |= Button3Mask;
break;
default: // 1
state |= Button1Mask;
break;
}
}
else
{
switch ( button )
{
case 2:
state &= ~Button2Mask;
break;
case 3:
state &= ~Button3Mask;
break;
default: // 1
state &= ~Button1Mask;
break;
}
}
}
}
return state;
}
/*!
Handles keypress event during mouse emulation
*/
bool Workspace::keyPressMouseEmulation( XKeyEvent& ev )
{
int kc = XKeycodeToKeysym(display(), ev.keycode, 0);
int km = ev.state & (ControlMask | Mod1Mask | ShiftMask);
bool is_control = km & ControlMask;
bool is_alt = km & Mod1Mask;
bool is_shift = km & ShiftMask;
int delta = is_control?1:is_alt?32:8;
QPoint pos = cursorPos();
switch ( kc )
{
case XK_Left:
case XK_KP_Left:
pos.rx() -= delta;
break;
case XK_Right:
case XK_KP_Right:
pos.rx() += delta;
break;
case XK_Up:
case XK_KP_Up:
pos.ry() -= delta;
break;
case XK_Down:
case XK_KP_Down:
pos.ry() += delta;
break;
case XK_F1:
if ( !mouse_emulation_state )
mouse_emulation_window = getMouseEmulationWindow();
if ( (mouse_emulation_state & Button1Mask) == 0 )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuPress, Button1, mouse_emulation_state );
if ( !is_shift )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button1, mouse_emulation_state );
break;
case XK_F2:
if ( !mouse_emulation_state )
mouse_emulation_window = getMouseEmulationWindow();
if ( (mouse_emulation_state & Button2Mask) == 0 )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuPress, Button2, mouse_emulation_state );
if ( !is_shift )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button2, mouse_emulation_state );
break;
case XK_F3:
if ( !mouse_emulation_state )
mouse_emulation_window = getMouseEmulationWindow();
if ( (mouse_emulation_state & Button3Mask) == 0 )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuPress, Button3, mouse_emulation_state );
if ( !is_shift )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button3, mouse_emulation_state );
break;
case XK_Return:
case XK_space:
case XK_KP_Enter:
case XK_KP_Space:
{
if ( !mouse_emulation_state )
{
// nothing was pressed, fake a LMB click
mouse_emulation_window = getMouseEmulationWindow();
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuPress, Button1, mouse_emulation_state );
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button1, mouse_emulation_state );
}
else
{ // release all
if ( mouse_emulation_state & Button1Mask )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button1, mouse_emulation_state );
if ( mouse_emulation_state & Button2Mask )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button2, mouse_emulation_state );
if ( mouse_emulation_state & Button3Mask )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button3, mouse_emulation_state );
}
}
// fall through
case XK_Escape:
ungrabXKeyboard();
mouse_emulation = false;
return true;
default:
return false;
}
QCursor::setPos( pos );
if ( mouse_emulation_state )
mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuMove, 0, mouse_emulation_state );
return true;
}
/*!
Returns the workspace's desktop widget. The desktop widget is
sometimes required by clients to draw on it, for example outlines on
moving or resizing.
*/
QWidget* Workspace::desktopWidget()
{
return desktop_widget;
}
//Delayed focus functions
void Workspace::delayFocus()
{
requestFocus( delayfocus_client );
cancelDelayFocus();
}
void Workspace::requestDelayFocus( Client* c )
{
delayfocus_client = c;
delete delayFocusTimer;
delayFocusTimer = new QTimer( this );
connect( delayFocusTimer, SIGNAL( timeout() ), this, SLOT( delayFocus() ) );
delayFocusTimer->setSingleShot( true );
delayFocusTimer->start( options->delayFocusInterval );
}
void Workspace::cancelDelayFocus()
{
delete delayFocusTimer;
delayFocusTimer = 0;
}
// Electric Borders
//========================================================================//
// Electric Border Window management. Electric borders allow a user
// to change the virtual desktop or activate another features
// by moving the mouse pointer to the borders or corners.
// Technically this is done with input only windows.
void Workspace::updateElectricBorders()
{
electric_time_first = xTime();
electric_time_last = xTime();
electric_current_border = ElectricNone;
QRect r = QApplication::desktop()->geometry();
electricTop = r.top();
electricBottom = r.bottom();
electricLeft = r.left();
electricRight = r.right();
for( int pos = 0;
pos < ELECTRIC_COUNT;
++pos )
{
if( electric_reserved[ pos ] == 0 )
{
if( electric_windows[ pos ] != None )
XDestroyWindow( display(), electric_windows[ pos ] );
electric_windows[ pos ] = None;
continue;
}
if( electric_windows[ pos ] != None )
continue;
XSetWindowAttributes attributes;
attributes.override_redirect = True;
attributes.event_mask = EnterWindowMask | LeaveWindowMask;
unsigned long valuemask = CWOverrideRedirect | CWEventMask;
int xywh[ ELECTRIC_COUNT ][ 4 ] =
{
{ r.left() + 1, r.top(), r.width() - 2, 1 }, // top
{ r.right(), r.top(), 1, 1 }, // topright
{ r.right(), r.top() + 1, 1, r.height() - 2 }, // etc.
{ r.right(), r.bottom(), 1, 1 },
{ r.left() + 1, r.bottom(), r.width() - 2, 1 },
{ r.left(), r.bottom(), 1, 1 },
{ r.left(), r.top() + 1, 1, r.height() - 2 },
{ r.left(), r.top(), 1, 1 }
};
electric_windows[ pos ] = XCreateWindow( display(), rootWindow(),
xywh[ pos ][ 0 ], xywh[ pos ][ 1 ], xywh[ pos ][ 2 ], xywh[ pos ][ 3 ],
0, CopyFromParent, InputOnly, CopyFromParent, valuemask, &attributes );
XMapWindow( display(), electric_windows[ pos ]);
// Set XdndAware on the windows, so that DND enter events are received (#86998)
Atom version = 4; // XDND version
XChangeProperty( display(), electric_windows[ pos ], atoms->xdnd_aware, XA_ATOM,
32, PropModeReplace, ( unsigned char* )&version, 1 );
}
}
void Workspace::destroyElectricBorders()
{
for( int pos = 0;
pos < ELECTRIC_COUNT;
++pos )
{
if( electric_windows[ pos ] != None )
XDestroyWindow( display(), electric_windows[ pos ] );
electric_windows[ pos ] = None;
}
}
void Workspace::reserveElectricBorderSwitching( bool reserve )
{
for( int pos = 0;
pos < ELECTRIC_COUNT;
++pos )
if( reserve )
reserveElectricBorder( static_cast< ElectricBorder >( pos ));
else
unreserveElectricBorder( static_cast< ElectricBorder >( pos ));
}
void Workspace::reserveElectricBorder( ElectricBorder border )
{
if( border == ElectricNone )
return;
if( electric_reserved[ border ]++ == 0 )
QTimer::singleShot( 0, this, SLOT( updateElectricBorders()));
}
void Workspace::unreserveElectricBorder( ElectricBorder border )
{
if( border == ElectricNone )
return;
assert( electric_reserved[ border ] > 0 );
if( --electric_reserved[ border ] == 0 )
QTimer::singleShot( 0, this, SLOT( updateElectricBorders()));
}
void Workspace::checkElectricBorder(const QPoint &pos, Time now)
{
if ((pos.x() != electricLeft) &&
(pos.x() != electricRight) &&
(pos.y() != electricTop) &&
(pos.y() != electricBottom))
return;
bool have_borders = false;
for( int i = 0;
i < ELECTRIC_COUNT;
++i )
if( electric_windows[ i ] != None )
have_borders = true;
if( !have_borders )
return;
Time treshold_set = options->electricBorderDelay(); // set timeout
Time treshold_reset = 250; // reset timeout
int distance_reset = 30; // Mouse should not move more than this many pixels
ElectricBorder border;
if( pos.x() == electricLeft && pos.y() == electricTop )
border = ElectricTopLeft;
else if( pos.x() == electricRight && pos.y() == electricTop )
border = ElectricTopRight;
else if( pos.x() == electricLeft && pos.y() == electricBottom )
border = ElectricBottomLeft;
else if( pos.x() == electricRight && pos.y() == electricBottom )
border = ElectricBottomRight;
else if( pos.x() == electricLeft )
border = ElectricLeft;
else if( pos.x() == electricRight )
border = ElectricRight;
else if( pos.y() == electricTop )
border = ElectricTop;
else if( pos.y() == electricBottom )
border = ElectricBottom;
else
abort();
if( electric_windows[ border ] == None )
return;
if ((electric_current_border == border) &&
(timestampDiff(electric_time_last, now) < treshold_reset) &&
((pos-electric_push_point).manhattanLength() < distance_reset))
{
electric_time_last = now;
if (timestampDiff(electric_time_first, now) > treshold_set)
{
electric_current_border = ElectricNone;
if( effects && static_cast<EffectsHandlerImpl*>(effects)->borderActivated( border ))
{} // handled by effects
else
electricBorderSwitchDesktop( border, pos );
return;
}
}
else
{
electric_current_border = border;
electric_time_first = now;
electric_time_last = now;
electric_push_point = pos;
}
// reset the pointer to find out wether the user is really pushing
// (the direction back from which it came, starting from top clockwise)
const int xdiff[ ELECTRIC_COUNT ] = { 0, -1, -1, -1, 0, 1, 1, 1 };
const int ydiff[ ELECTRIC_COUNT ] = { 1, 1, 0, -1, -1, -1, 0, 1 };
QCursor::setPos( pos.x() + xdiff[ border ], pos.y() + ydiff[ border ] );
}
void Workspace::electricBorderSwitchDesktop( ElectricBorder border, const QPoint& _pos )
{
QPoint pos = _pos;
int desk = currentDesktop();
const int OFFSET = 2;
if( border == ElectricLeft || border == ElectricTopLeft || border == ElectricBottomLeft )
{
desk = desktopToLeft( desk );
pos.setX( displayWidth() - 1 - OFFSET );
}
if( border == ElectricRight || border == ElectricTopRight || border == ElectricBottomRight )
{
desk = desktopToRight( desk );
pos.setX( OFFSET );
}
if( border == ElectricTop || border == ElectricTopLeft || border == ElectricTopRight )
{
desk = desktopUp( desk );
pos.setY( displayHeight() - 1 - OFFSET );
}
if( border == ElectricBottom || border == ElectricBottomLeft || border == ElectricBottomRight )
{
desk = desktopDown( desk );
pos.setY( OFFSET );
}
int desk_before = currentDesktop();
setCurrentDesktop( desk );
if( currentDesktop() != desk_before )
QCursor::setPos( pos );
}
// this function is called when the user entered an electric border
// with the mouse. It may switch to another virtual desktop
bool Workspace::electricBorderEvent(XEvent *e)
{
if( e->type == EnterNotify )
{
for( int i = 0;
i < ELECTRIC_COUNT;
++i )
if( electric_windows[ i ] != None && e->xcrossing.window == electric_windows[ i ] )
{ // the user entered an electric border
checkElectricBorder( QPoint( e->xcrossing.x_root, e->xcrossing.y_root ), e->xcrossing.time );
return true;
}
}
if( e->type == ClientMessage )
{
if( e->xclient.message_type == atoms->xdnd_position )
{
for( int i = 0;
i < ELECTRIC_COUNT;
++i )
if( electric_windows[ i ] != None && e->xclient.window == electric_windows[ i ] )
{
updateXTime();
checkElectricBorder( QPoint( e->xclient.data.l[2]>>16, e->xclient.data.l[2]&0xffff), xTime() );
return true;
}
}
}
return false;
}
void Workspace::addTopMenu( Client* c )
{
assert( c->isTopMenu());
assert( !topmenus.contains( c ));
topmenus.append( c );
if( managingTopMenus())
{
int minsize = c->minSize().height();
if( minsize > topMenuHeight())
{
topmenu_height = minsize;
updateTopMenuGeometry();
}
updateTopMenuGeometry( c );
updateCurrentTopMenu();
}
// kDebug() << "NEW TOPMENU:" << c;
}
void Workspace::removeTopMenu( Client* c )
{
// if( c->isTopMenu())
// kDebug() << "REMOVE TOPMENU:" << c;
assert( c->isTopMenu());
assert( topmenus.contains( c ));
topmenus.removeAll( c );
updateCurrentTopMenu();
// TODO reduce topMenuHeight() if possible?
}
void Workspace::lostTopMenuSelection()
{
// kDebug() << "lost TopMenu selection";
// make sure this signal is always set when not owning the selection
disconnect( topmenu_watcher, SIGNAL( lostOwner()), this, SLOT( lostTopMenuOwner()));
connect( topmenu_watcher, SIGNAL( lostOwner()), this, SLOT( lostTopMenuOwner()));
if( !managing_topmenus )
return;
connect( topmenu_watcher, SIGNAL( lostOwner()), this, SLOT( lostTopMenuOwner()));
disconnect( topmenu_selection, SIGNAL( lostOwnership()), this, SLOT( lostTopMenuSelection()));
managing_topmenus = false;
delete topmenu_space;
topmenu_space = NULL;
updateClientArea();
for( ClientList::ConstIterator it = topmenus.begin();
it != topmenus.end();
++it )
(*it)->checkWorkspacePosition();
}
void Workspace::lostTopMenuOwner()
{
if( !options->topMenuEnabled())
return;
// kDebug() << "TopMenu selection lost owner";
if( !topmenu_selection->claim( false ))
{
// kDebug() << "Failed to claim TopMenu selection";
return;
}
// kDebug() << "claimed TopMenu selection";
setupTopMenuHandling();
}
void Workspace::setupTopMenuHandling()
{
if( managing_topmenus )
return;
connect( topmenu_selection, SIGNAL( lostOwnership()), this, SLOT( lostTopMenuSelection()));
disconnect( topmenu_watcher, SIGNAL( lostOwner()), this, SLOT( lostTopMenuOwner()));
managing_topmenus = true;
topmenu_space = new QWidget;
Window stack[ 2 ];
stack[ 0 ] = supportWindow->winId();
stack[ 1 ] = topmenu_space->winId();
XRestackWindows(display(), stack, 2);
updateTopMenuGeometry();
topmenu_space->show();
updateClientArea();
updateCurrentTopMenu();
}
int Workspace::topMenuHeight() const
{
if( topmenu_height == 0 )
{ // simply create a dummy menubar and use its preffered height as the menu height
KMenuBar tmpmenu;
tmpmenu.addAction( "dummy" );
topmenu_height = tmpmenu.sizeHint().height();
}
return topmenu_height;
}
KDecoration* Workspace::createDecoration( KDecorationBridge* bridge )
{
return mgr->createDecoration( bridge );
}
QString Workspace::desktopName( int desk ) const
{
return QString::fromUtf8( rootInfo->desktopName( desk ) );
}
bool Workspace::checkStartupNotification( Window w, KStartupInfoId& id, KStartupInfoData& data )
{
return startup->checkStartup( w, id, data ) == KStartupInfo::Match;
}
/*!
Puts the focus on a dummy window
Just using XSetInputFocus() with None would block keyboard input
*/
void Workspace::focusToNull()
{
XSetInputFocus(display(), null_focus_window, RevertToPointerRoot, xTime() );
}
void Workspace::helperDialog( const QString& message, const Client* c )
{
QStringList args;
QString type;
if( message == "noborderaltf3" )
{
KAction* action = qobject_cast<KAction*>(keys->action( "Window Operations Menu" ));
if (action==0) assert( false );
QString shortcut = QString( "%1 (%2)" ).arg( action->text() )
.arg( action->globalShortcut().primary().toString());
args << "--msgbox" <<
i18n( "You have selected to show a window without its border.\n"
"Without the border, you will not be able to enable the border "
"again using the mouse: use the window operations menu instead, "
"activated using the %1 keyboard shortcut." ,
shortcut );
type = "altf3warning";
}
else if( message == "fullscreenaltf3" )
{
KAction* action = qobject_cast<KAction*>(keys->action( "Window Operations Menu" ));
if (action==0) assert( false );
QString shortcut = QString( "%1 (%2)" ).arg( action->text() )
.arg( action->globalShortcut().primary().toString());
args << "--msgbox" <<
i18n( "You have selected to show a window in fullscreen mode.\n"
"If the application itself does not have an option to turn the fullscreen "
"mode off you will not be able to disable it "
"again using the mouse: use the window operations menu instead, "
"activated using the %1 keyboard shortcut." ,
shortcut );
type = "altf3warning";
}
else
assert( false );
if( !type.isEmpty())
{
KConfig cfg( "kwin_dialogsrc" );
KConfigGroup cg(&cfg, "Notification Messages" ); // this depends on KMessageBox
if( !cg.readEntry( type, true )) // has don't show again checked
return; // save launching kdialog
args <<"--dontagain" << "kwin_dialogsrc:" + type;
}
if( c != NULL )
args <<"--embed" << QString::number( c->window());
KProcess::startDetached("kdialog",args);
}
void Workspace::setShowingDesktop( bool showing )
{
rootInfo->setShowingDesktop( showing );
showing_desktop = showing;
++block_showing_desktop;
if( showing_desktop )
{
showing_desktop_clients.clear();
++block_focus;
ClientList cls = stackingOrder();
// find them first, then minimize, otherwise transients may get minimized with the window
// they're transient for
for( ClientList::ConstIterator it = cls.begin();
it != cls.end();
++it )
{
if( (*it)->isOnCurrentDesktop() && (*it)->isShown( true ) && !(*it)->isSpecialWindow())
showing_desktop_clients.prepend( *it ); // topmost first to reduce flicker
}
for( ClientList::ConstIterator it = showing_desktop_clients.begin();
it != showing_desktop_clients.end();
++it )
(*it)->minimize();
--block_focus;
if( Client* desk = findDesktop( true, currentDesktop()))
requestFocus( desk );
}
else
{
for( ClientList::ConstIterator it = showing_desktop_clients.begin();
it != showing_desktop_clients.end();
++it )
(*it)->unminimize();
if( showing_desktop_clients.count() > 0 )
requestFocus( showing_desktop_clients.first());
showing_desktop_clients.clear();
}
--block_showing_desktop;
}
// Following Kicker's behavior:
// Changing a virtual desktop resets the state and shows the windows again.
// Unminimizing a window resets the state but keeps the windows hidden (except
// the one that was unminimized).
// A new window resets the state and shows the windows again, with the new window
// being active. Due to popular demand (#67406) by people who apparently
// don't see a difference between "show desktop" and "minimize all", this is not
// true if "showDesktopIsMinimizeAll" is set in kwinrc. In such case showing
// a new window resets the state but doesn't show windows.
void Workspace::resetShowingDesktop( bool keep_hidden )
{
if( block_showing_desktop > 0 )
return;
rootInfo->setShowingDesktop( false );
showing_desktop = false;
++block_showing_desktop;
if( !keep_hidden )
{
for( ClientList::ConstIterator it = showing_desktop_clients.begin();
it != showing_desktop_clients.end();
++it )
(*it)->unminimize();
}
showing_desktop_clients.clear();
--block_showing_desktop;
}
// Activating/deactivating this feature works like this:
// When nothing is active, and the shortcut is pressed, global shortcuts are disabled
// (using global_shortcuts_disabled)
// When a window that has disabling forced is activated, global shortcuts are disabled.
// (using global_shortcuts_disabled_for_client)
// When a shortcut is pressed and global shortcuts are disabled (either by a shortcut
// or for a client), they are enabled again.
void Workspace::slotDisableGlobalShortcuts()
{
if( global_shortcuts_disabled || global_shortcuts_disabled_for_client )
disableGlobalShortcuts( false );
else
disableGlobalShortcuts( true );
}
static bool pending_dfc = false;
void Workspace::disableGlobalShortcutsForClient( bool disable )
{
if( global_shortcuts_disabled_for_client == disable )
return;
if( !global_shortcuts_disabled )
{
if( disable )
pending_dfc = true;
KGlobalSettings::self()->emitChange( KGlobalSettings::BlockShortcuts, disable );
// kwin will get the kipc message too
}
}
void Workspace::disableGlobalShortcuts( bool disable )
{
KGlobalSettings::self()->emitChange( KGlobalSettings::BlockShortcuts, disable );
// kwin will get the kipc message too
}
void Workspace::slotBlockShortcuts( int data )
{
if( pending_dfc && data )
{
global_shortcuts_disabled_for_client = true;
pending_dfc = false;
}
else
{
global_shortcuts_disabled = data;
global_shortcuts_disabled_for_client = false;
}
// update also Alt+LMB actions etc.
for( ClientList::ConstIterator it = clients.begin();
it != clients.end();
++it )
(*it)->updateMouseGrab();
}
// Optimized version of QCursor::pos() that tries to avoid X roundtrips
// by updating the value only when the X timestamp changes.
static QPoint last_cursor_pos;
static int last_buttons = 0;
static Time last_cursor_timestamp = CurrentTime;
QPoint Workspace::cursorPos() const
{
if( last_cursor_timestamp == CurrentTime
|| last_cursor_timestamp != QX11Info::appTime())
{
last_cursor_timestamp = QX11Info::appTime();
Window root;
Window child;
int root_x, root_y, win_x, win_y;
uint state;
XQueryPointer( display(), rootWindow(), &root, &child,
&root_x, &root_y, &win_x, &win_y, &state );
last_cursor_pos = QPoint( root_x, root_y );
last_buttons = state;
QTimer::singleShot( 0, const_cast< Workspace* >( this ), SLOT( resetCursorPosTime()));
}
return last_cursor_pos;
}
// Because of QTimer's and the impossibility to get events for all mouse
// movements (at least I haven't figured out how) the position needs
// to be also refetched after each return to the event loop.
void Workspace::resetCursorPosTime()
{
last_cursor_timestamp = CurrentTime;
}
void Workspace::checkCursorPos()
{
QPoint last = last_cursor_pos;
int lastb = last_buttons;
cursorPos(); // update if needed
if( last != last_cursor_pos || lastb != last_buttons )
static_cast< EffectsHandlerImpl* >( effects )->mouseChanged( cursorPos(), last,
x11ToQtMouseButtons( last_buttons ), x11ToQtKeyboardModifiers( last_buttons ));
}
} // namespace
#include "workspace.moc"