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kwin/workspace.cpp
Cristian Tibirna 9a48b329fe Also create electric borders for moving only. 
CCMAIL: 81599-done@bugs.kde.org

svn path=/trunk/kdebase/kwin/; revision=311541
2004-05-15 02:38:47 +00:00

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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 <qpopupmenu.h>
#include <klocale.h>
#include <qregexp.h>
#include <qpainter.h>
#include <qbitmap.h>
#include <qclipboard.h>
#include <kmenubar.h>
#include <kprocess.h>
#include <kglobalaccel.h>
#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 <X11/extensions/shape.h>
#include <X11/keysym.h>
#include <X11/keysymdef.h>
#include <X11/cursorfont.h>
extern Time qt_x_time;
namespace KWinInternal
{
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 )
: DCOPObject ("KWinInterface"),
QObject (0, "workspace"),
current_desktop (0),
number_of_desktops(0),
popup_client (0),
desktop_widget (0),
active_client (0),
last_active_client (0),
most_recently_raised (0),
movingClient(0),
pending_take_activity ( NULL ),
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),
desk_popup (0),
desk_popup_index (0),
keys (0),
root (0),
workspaceInit (true),
startup(0), electric_have_borders(false),
electric_current_border(0),
electric_top_border(None),
electric_bottom_border(None),
electric_left_border(None),
electric_right_border(None),
layoutOrientation(Qt::Vertical),
layoutX(-1),
layoutY(2),
workarea(NULL),
screenarea(NULL),
set_active_client_recursion( 0 ),
block_stacking_updates( 0 ),
forced_global_mouse_grab( false )
{
_self = this;
mgr = new PluginMgr;
root = qt_xrootwin();
default_colormap = DefaultColormap(qt_xdisplay(), qt_xscreen() );
installed_colormap = default_colormap;
session.setAutoDelete( TRUE );
updateXTime(); // needed for proper initialization of user_time in Client ctor
electric_time_first = qt_x_time;
electric_time_last = qt_x_time;
if ( restore )
loadSessionInfo();
loadFakeSessionInfo();
(void) QApplication::desktop(); // trigger creation of desktop widget
desktop_widget =
new QWidget(
0,
"desktop_widget",
Qt::WType_Desktop | Qt::WPaintUnclipped
);
kapp->setGlobalMouseTracking( true ); // so that this doesn't mess eventmask on root window later
// call this before XSelectInput() on the root window
startup = new KStartupInfo(
KStartupInfo::DisableKWinModule | KStartupInfo::AnnounceSilenceChanges, this );
// select windowmanager privileges
XSelectInput(qt_xdisplay(), root,
KeyPressMask |
PropertyChangeMask |
ColormapChangeMask |
SubstructureRedirectMask |
SubstructureNotifyMask |
FocusChangeMask // for NotifyDetailNone
);
Shape::init();
// compatibility
long data = 1;
XChangeProperty(
qt_xdisplay(),
qt_xrootwin(),
atoms->kwin_running,
atoms->kwin_running,
32,
PropModeAppend,
(unsigned char*) &data,
1
);
initShortcuts();
tab_box = new TabBox( this );
popupinfo = new PopupInfo( );
init();
#if (QT_VERSION-0 >= 0x030200) // XRANDR support
connect( kapp->desktop(), SIGNAL( resized( int )), SLOT( desktopResized()));
#endif
}
void Workspace::init()
{
checkElectricBorders();
supportWindow = new QWidget;
XLowerWindow( qt_xdisplay(), supportWindow->winId()); // see usage in layers.cpp
XSetWindowAttributes attr;
attr.override_redirect = 1;
null_focus_window = XCreateWindow( qt_xdisplay(), qt_xrootwin(), -1,-1, 1, 1, 0, CopyFromParent,
InputOnly, CopyFromParent, CWOverrideRedirect, &attr );
XMapWindow(qt_xdisplay(), 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::KDESystemTrayWindows |
NET::WMName |
NET::WMVisibleName |
NET::WMDesktop |
NET::WMWindowType |
NET::WMState |
NET::WMStrut |
NET::WMIconGeometry |
NET::WMIcon |
NET::WMPid |
NET::WMMoveResize |
NET::WMKDESystemTrayWinFor |
NET::WMKDEFrameStrut |
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 |
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
,
};
rootInfo = new RootInfo( this, qt_xdisplay(), supportWindow->winId(), "KWin",
protocols, 5, qt_xscreen() );
loadDesktopSettings();
// extra NETRootInfo instance in Client mode is needed to get the values of the properties
NETRootInfo client_info( qt_xdisplay(), NET::ActiveWindow | NET::CurrentDesktop );
int initial_desktop;
if( !kapp->isSessionRestored())
initial_desktop = client_info.currentDesktop();
else
{
KConfigGroupSaver saver( kapp->sessionConfig(), "Session" );
initial_desktop = kapp->sessionConfig()->readNumEntry( "desktop", 1 );
}
if( !setCurrentDesktop( initial_desktop ))
setCurrentDesktop( 1 );
// now we know how many desktops we'll, thus, we initialise the positioning object
initPositioning = new Placement(this);
connect(&reconfigureTimer, SIGNAL(timeout()), this,
SLOT(slotReconfigure()));
connect( &updateToolWindowsTimer, SIGNAL( timeout()), this, SLOT( slotUpdateToolWindows()));
connect(kapp, SIGNAL(appearanceChanged()), this,
SLOT(slotReconfigure()));
connect(kapp, SIGNAL(settingsChanged(int)), this,
SLOT(slotSettingsChanged(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( qt_xdisplay()));
Atom topmenu_atom = XInternAtom( qt_xdisplay(), nm, False );
topmenu_selection = new KSelectionOwner( topmenu_atom );
topmenu_watcher = new KSelectionWatcher( topmenu_atom );
topmenu_height = 0;
managing_topmenus = false;
topmenu_space = NULL;
// 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(qt_xdisplay(), root, &root_return, &parent_return, &wins, &nwins);
for (i = 0; i < nwins; i++)
{
XWindowAttributes attr;
XGetWindowAttributes(qt_xdisplay(), wins[i], &attr);
if (attr.override_redirect )
continue;
if( topmenu_space && topmenu_space->winId() == wins[ i ] )
continue;
if (attr.map_state != IsUnmapped)
{
if ( addSystemTrayWin( wins[i] ) )
continue;
Client* c = createClient( wins[i], true );
if ( c != NULL && root != qt_xrootwin() )
{ // TODO what is this?
// TODO may use QWidget:.create
XReparentWindow( qt_xdisplay(), c->frameId(), root, 0, 0 );
c->move(0,0);
}
}
}
if ( wins )
XFree((void *) wins);
// propagate clients, will really happen at the end of the updates blocker block
updateStackingOrder( true );
updateClientArea();
raiseElectricBorders();
// 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();
// TODO update also after gaining XRANDR support
rootInfo->setDesktopGeometry( -1, desktop_geometry );
} // 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()
{
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
if( !(*it)->isDesktop()) // TODO ?
storeFakeSessionInfo( *it );
(*it)->releaseWindow( true );
}
delete desktop_widget;
delete tab_box;
delete popupinfo;
delete popup;
if ( root == qt_xrootwin() )
XDeleteProperty(qt_xdisplay(), qt_xrootwin(), atoms->kwin_running);
writeFakeSessionInfo();
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;
XDestroyWindow( qt_xdisplay(), 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 );
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
{
if ( c->wantsTabFocus() && !focus_chain.contains( c ))
focus_chain.append( c );
clients.append( c );
}
if( !unconstrained_stacking_order.contains( c ))
unconstrained_stacking_order.append( c );
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()));
}
if( c->isUtility() || c->isMenu() || c->isToolbar())
updateToolWindows( true );
checkTransients( c->window()); // SELI does this really belong here?
updateStackingOrder( true ); // propagate new client
}
/*
Destroys the client \a c
*/
void Workspace::removeClient( Client* c, allowed_t )
{
if (c == active_client && popup)
popup->close();
if( c == popup_client )
popup_client = 0;
if( c->isDialog())
Notify::raise( Notify::TransDelete );
if( c->isNormalWindow())
Notify::raise( Notify::Delete );
storeFakeSessionInfo( c );
Q_ASSERT( clients.contains( c ) || desktops.contains( c ));
clients.remove( c );
desktops.remove( c );
unconstrained_stacking_order.remove( c );
stacking_order.remove( c );
focus_chain.remove( c );
attention_chain.remove( 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.remove( c );
Q_ASSERT( c != active_client );
if ( c == last_active_client )
last_active_client = 0;
if( c == pending_take_activity )
pending_take_activity = NULL;
updateStackingOrder( true );
if (tab_grab)
tab_box->repaint();
updateClientArea();
}
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
}
}
// kdDebug() << "CURRENT TOPMENU:" << menubar << ":" << active_client << endl;
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.remove( 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?)
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 )
to_show.append( *it );
else if( also_hide )
to_hide.append( *it );
}
} // first show new ones, then hide
for( ClientList::ConstIterator it = to_show.fromLast();
it != to_show.end();
--it ) // from topmost
// TODO since this is in stacking order, the order of taskbar entries changes :(
(*it)->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, true );
}
}
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(qt_xdisplay(), cmap );
installed_colormap = cmap;
}
}
void Workspace::reconfigure()
{
reconfigureTimer.start(200, true);
}
void Workspace::slotSettingsChanged(int category)
{
kdDebug(1212) << "Workspace::slotSettingsChanged()" << endl;
if( category == (int) KApplication::SETTINGS_SHORTCUTS )
readShortcuts();
}
/*!
Reread settings
*/
KWIN_PROCEDURE( CheckBorderSizesProcedure, cl->checkBorderSizes() );
void Workspace::slotReconfigure()
{
kdDebug(1212) << "Workspace::slotReconfigure()" << endl;
reconfigureTimer.stop();
KGlobal::config()->reparseConfiguration();
unsigned long changed = options->updateSettings();
tab_box->reconfigure();
popupinfo->reconfigure();
readShortcuts();
forEachClient( CheckIgnoreFocusStealingProcedure());
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());
}
checkElectricBorders();
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();
}
}
void Workspace::loadDesktopSettings()
{
KConfig c("kwinrc");
QCString groupname;
if (screen_number == 0)
groupname = "Desktops";
else
groupname.sprintf("Desktops-screen-%d", screen_number);
c.setGroup(groupname);
int n = c.readNumEntry("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 );
for(int i = 1; i <= n; i++)
{
QString s = c.readEntry(QString("Name_%1").arg(i),
i18n("Desktop %1").arg(i));
rootInfo->setDesktopName( i, s.utf8().data() );
desktop_focus_chain[i-1] = i;
}
}
void Workspace::saveDesktopSettings()
{
KConfig c("kwinrc");
QCString groupname;
if (screen_number == 0)
groupname = "Desktops";
else
groupname.sprintf("Desktops-screen-%d", screen_number);
c.setGroup(groupname);
c.writeEntry("Number", number_of_desktops );
for(int i = 1; i <= number_of_desktops; i++)
{
QString s = desktopName( i );
QString defaultvalue = i18n("Desktop %1").arg(i);
if ( s.isEmpty() )
{
s = defaultvalue;
rootInfo->setDesktopName( i, s.utf8().data() );
}
if (s != defaultvalue)
{
c.writeEntry( QString("Name_%1").arg(i), s );
}
else
{
QString currentvalue = c.readEntry(QString("Name_%1").arg(i));
if (currentvalue != defaultvalue)
c.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 (kapp->authorizeControlModule("kde-kwinoptions.desktop"))
args << "kwinactions" << "kwinfocus" << "kwinmoving" << "kwinadvanced";
return args;
}
void Workspace::configureWM()
{
KApplication::kdeinitExec( "kcmshell", configModules(false) );
}
/*!
avoids managing a window with title \a title
*/
void Workspace::doNotManage( 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.search(title) != -1)
{
doNotManageList.remove( 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::flushX();
}
/*!
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:
QValueList<Window> obscuring_windows;
static QValueList<Window>* cached;
static unsigned int max_cache_size;
};
QValueList<Window>* ObscuringWindows::cached = 0;
unsigned int ObscuringWindows::max_cache_size = 0;
void ObscuringWindows::create( Client* c )
{
if( cached == 0 )
cached = new QValueList<Window>;
Window obs_win;
XWindowChanges chngs;
int mask = CWSibling | CWStackMode;
if( cached->count() > 0 )
{
cached->remove( 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( qt_xdisplay(), qt_xrootwin(), c->x(), c->y(),
c->width(), c->height(), 0, CopyFromParent, InputOutput,
CopyFromParent, CWBackPixmap | CWOverrideRedirect, &a );
}
chngs.sibling = c->frameId();
chngs.stack_mode = Below;
XConfigureWindow( qt_xdisplay(), obs_win, mask, &chngs );
XMapWindow( qt_xdisplay(), obs_win );
obscuring_windows.append( obs_win );
}
ObscuringWindows::~ObscuringWindows()
{
max_cache_size = QMAX( max_cache_size, obscuring_windows.count() + 4 ) - 1;
for( QValueList<Window>::ConstIterator it = obscuring_windows.begin();
it != obscuring_windows.end();
++it )
{
XUnmapWindow( qt_xdisplay(), *it );
if( cached->count() < max_cache_size )
cached->prepend( *it );
else
XDestroyWindow( qt_xdisplay(), *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;
if( popup )
popup->close();
++block_focus;
// TODO Q_ASSERT( block_stacking_updates == 0 ); // make sure stacking_order is up to date
StackingUpdatesBlocker blocker( this );
if (new_desktop != current_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;
int old_desktop = current_desktop;
current_desktop = new_desktop; // change the desktop (so that Client::virtualDesktopChange() 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)->virtualDesktopChange();
}
rootInfo->setCurrentDesktop( current_desktop ); // now propagate the change, after hiding, before showing
if( movingClient && !movingClient->isOnDesktop( new_desktop ))
movingClient->setDesktop( new_desktop );
for ( ClientList::ConstIterator it = stacking_order.fromLast(); it != stacking_order.end(); --it)
if ( (*it)->isOnDesktop( new_desktop ) )
(*it)->virtualDesktopChange();
}
// restore the focus on this desktop
--block_focus;
Client* c = 0;
if ( options->focusPolicyIsReasonable())
{
// Search in focus chain
if ( focus_chain.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( ClientList::ConstIterator it = focus_chain.fromLast(); it != focus_chain.end(); --it)
{
if ( (*it)->isShown( false ) && !(*it)->isOnAllDesktops() && (*it)->isOnCurrentDesktop())
{
c = *it;
break;
}
}
}
if ( !c )
{
for( ClientList::ConstIterator it = focus_chain.fromLast(); it != focus_chain.end(); --it)
{
if ( (*it)->isShown( false ) && (*it)->isOnCurrentDesktop())
{
c = *it;
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 != active_client )
setActiveClient( NULL, Allowed );
if ( c )
requestFocus( c );
else
focusToNull();
if( !desktops.isEmpty() )
{
Window w_tmp;
int i_tmp;
XGetInputFocus( qt_xdisplay(), &w_tmp, &i_tmp );
if( w_tmp == null_focus_window ) // CHECKME?
requestFocus( findDesktop( true, currentDesktop()));
}
// Update focus chain:
// If input: chain = { 1, 2, 3, 4 } and current_desktop = 3,
// Output: chain = { 3, 1, 2, 4 }.
// kdDebug(1212) << QString("Switching to desktop #%1, at focus_chain index %2\n")
// .arg(current_desktop).arg(desktop_focus_chain.find( current_desktop ));
for( int i = desktop_focus_chain.find( current_desktop ); i > 0; i-- )
desktop_focus_chain[i] = desktop_focus_chain[i-1];
desktop_focus_chain[0] = current_desktop;
// QString s = "desktop_focus_chain[] = { ";
// for( uint i = 0; i < desktop_focus_chain.size(); i++ )
// s += QString::number(desktop_focus_chain[i]) + ", ";
// kdDebug(1212) << s << "}\n";
return true;
}
void Workspace::nextDesktop()
{
int desktop = currentDesktop() + 1;
setCurrentDesktop(desktop > numberOfDesktops() ? 1 : desktop);
popupinfo->showInfo( desktopName(currentDesktop()) );
}
void Workspace::previousDesktop()
{
int desktop = currentDesktop() - 1;
setCurrentDesktop(desktop > 0 ? desktop : numberOfDesktops());
popupinfo->showInfo( desktopName(currentDesktop()) );
}
/*!
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 );
}
// 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 );
}
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 )
{
if ( c->desktop() == desk )
return;
bool was_on_desktop = c->isOnDesktop( desk ) || c->isOnAllDesktops();
c->setDesktop( desk );
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 );
focus_chain.remove( c );
if ( c->wantsTabFocus() )
focus_chain.append( 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();
}
void Workspace::setDesktopLayout(int o, int x, int y)
{
layoutOrientation = (Qt::Orientation) o;
layoutX = x;
layoutY = y;
}
void Workspace::calcDesktopLayout(int &x, int &y)
{
x = layoutX;
y = layoutY;
if ((x == -1) && (y > 0))
x = (numberOfDesktops()+y-1) / y;
else if ((y == -1) && (x > 0))
y = (numberOfDesktops()+x-1) / x;
if (x == -1)
x = 1;
if (y == -1)
y = 1;
}
/*!
Check whether \a w is a system tray window. If so, add it to the respective
datastructures and propagate it to the world.
*/
bool Workspace::addSystemTrayWin( WId w )
{
if ( systemTrayWins.contains( w ) )
return TRUE;
NETWinInfo ni( qt_xdisplay(), w, root, NET::WMKDESystemTrayWinFor );
WId trayWinFor = ni.kdeSystemTrayWinFor();
if ( !trayWinFor )
return FALSE;
systemTrayWins.append( SystemTrayWindow( w, trayWinFor ) );
XSelectInput( qt_xdisplay(), w,
StructureNotifyMask
);
XAddToSaveSet( qt_xdisplay(), w );
propagateSystemTrayWins();
return TRUE;
}
/*!
Check whether \a w is a system tray window. If so, remove it from
the respective datastructures and propagate this to the world.
*/
bool Workspace::removeSystemTrayWin( WId w, bool check )
{
if ( !systemTrayWins.contains( w ) )
return FALSE;
if( check )
{
// When getting UnmapNotify, it's not clear if it's the systray
// reparenting the window into itself, or if it's the window
// going away. This is obviously a flaw in the design, and we were
// just lucky it worked for so long. Kicker's systray temporarily
// sets _KDE_SYSTEM_TRAY_EMBEDDING property on the window while
// embedding it, allowing KWin to figure out. Kicker just mustn't
// crash before removing it again ... *shrug* .
int num_props;
Atom* props = XListProperties( qt_xdisplay(), w, &num_props );
if( props != NULL )
{
for( int i = 0;
i < num_props;
++i )
if( props[ i ] == atoms->kde_system_tray_embedding )
{
XFree( props );
return false;
}
XFree( props );
}
}
systemTrayWins.remove( w );
propagateSystemTrayWins();
return TRUE;
}
/*!
Propagates the systemTrayWins to the world
*/
void Workspace::propagateSystemTrayWins()
{
Window *cl = new Window[ systemTrayWins.count()];
int i = 0;
for ( SystemTrayWindowList::ConstIterator it = systemTrayWins.begin(); it != systemTrayWins.end(); ++it )
{
cl[i++] = (*it).win;
}
rootInfo->setKDESystemTrayWindows( cl, i );
delete [] cl;
}
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( qt_xdisplay(), 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( qt_xdisplay(), 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( Shape::available())
{
//As the first step, get the mask from XShape.
int count, order;
XRectangle* rects = XShapeGetRectangles( qt_xdisplay(), 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;
QMemArray<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 (uint 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( qt_xrootwin() );
QClipboard *cb = QApplication::clipboard();
cb->setPixmap( p );
}
/*!
Invokes keyboard mouse emulation
*/
void Workspace::slotMouseEmulation()
{
if ( mouse_emulation )
{
XUngrabKeyboard(qt_xdisplay(), qt_x_time);
mouse_emulation = FALSE;
return;
}
if ( XGrabKeyboard(qt_xdisplay(),
root, FALSE,
GrabModeAsync, GrabModeAsync,
qt_x_time) == GrabSuccess )
{
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 = qt_xrootwin();
int root_x, root_y, lx, ly;
uint state;
Window w;
Client * c = 0;
do
{
w = child;
if (!c)
c = findClient( FrameIdMatchPredicate( w ));
XQueryPointer( qt_xdisplay(), 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 || widget->inherits("QToolButton") ) && !findClient( WindowMatchPredicate( w )) )
{
int x, y;
Window xw;
XTranslateCoordinates( qt_xdisplay(), qt_xrootwin(), w, pos.x(), pos.y(), &x, &y, &xw );
if ( type == EmuMove )
{ // motion notify events
XMotionEvent e;
e.type = MotionNotify;
e.window = w;
e.root = qt_xrootwin();
e.subwindow = w;
e.time = qt_x_time;
e.x = x;
e.y = y;
e.x_root = pos.x();
e.y_root = pos.y();
e.state = state;
e.is_hint = NotifyNormal;
XSendEvent( qt_xdisplay(), w, TRUE, ButtonMotionMask, (XEvent*)&e );
}
else
{
XButtonEvent e;
e.type = type == EmuRelease ? ButtonRelease : ButtonPress;
e.window = w;
e.root = qt_xrootwin();
e.subwindow = w;
e.time = qt_x_time;
e.x = x;
e.y = y;
e.x_root = pos.x();
e.y_root = pos.y();
e.state = state;
e.button = button;
XSendEvent( qt_xdisplay(), w, TRUE, ButtonPressMask, (XEvent*)&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 )
{
if ( root != qt_xrootwin() )
return FALSE;
int kc = XKeycodeToKeysym(qt_xdisplay(), 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 = QCursor::pos();
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:
XUngrabKeyboard(qt_xdisplay(), qt_x_time);
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;
}
// Electric Borders
//========================================================================//
// Electric Border Window management. Electric borders allow a user
// to change the virtual desktop by moving the mouse pointer to the
// borders. Technically this is done with input only windows. Since
// electric borders can be switched on and off, we have these two
// functions to create and destroy them.
void Workspace::checkElectricBorders()
{
electric_current_border = 0;
QRect r = QApplication::desktop()->geometry();
electricTop = r.top();
electricBottom = r.bottom();
electricLeft = r.left();
electricRight = r.right();
if (options->electricBorders() == Options::ElectricDisabled)
destroyBorderWindows();
else
createBorderWindows();
}
void Workspace::createBorderWindows()
{
if ( electric_have_borders )
return;
electric_have_borders = true;
QRect r = QApplication::desktop()->geometry();
XSetWindowAttributes attributes;
unsigned long valuemask;
attributes.override_redirect = True;
attributes.event_mask = (EnterWindowMask | LeaveWindowMask |
VisibilityChangeMask);
valuemask= (CWOverrideRedirect | CWEventMask | CWCursor );
attributes.cursor = XCreateFontCursor(qt_xdisplay(),
XC_sb_up_arrow);
electric_top_border = XCreateWindow (qt_xdisplay(), qt_xrootwin(),
0,0,
r.width(),1,
0,
CopyFromParent, InputOnly,
CopyFromParent,
valuemask, &attributes);
XMapWindow(qt_xdisplay(), electric_top_border);
attributes.cursor = XCreateFontCursor(qt_xdisplay(),
XC_sb_down_arrow);
electric_bottom_border = XCreateWindow (qt_xdisplay(), qt_xrootwin(),
0,r.height()-1,
r.width(),1,
0,
CopyFromParent, InputOnly,
CopyFromParent,
valuemask, &attributes);
XMapWindow(qt_xdisplay(), electric_bottom_border);
attributes.cursor = XCreateFontCursor(qt_xdisplay(),
XC_sb_left_arrow);
electric_left_border = XCreateWindow (qt_xdisplay(), qt_xrootwin(),
0,0,
1,r.height(),
0,
CopyFromParent, InputOnly,
CopyFromParent,
valuemask, &attributes);
XMapWindow(qt_xdisplay(), electric_left_border);
attributes.cursor = XCreateFontCursor(qt_xdisplay(),
XC_sb_right_arrow);
electric_right_border = XCreateWindow (qt_xdisplay(), qt_xrootwin(),
r.width()-1,0,
1,r.height(),
0,
CopyFromParent, InputOnly,
CopyFromParent,
valuemask, &attributes);
XMapWindow(qt_xdisplay(), electric_right_border);
}
// Electric Border Window management. Electric borders allow a user
// to change the virtual desktop by moving the mouse pointer to the
// borders. Technically this is done with input only windows. Since
// electric borders can be switched on and off, we have these two
// functions to create and destroy them.
void Workspace::destroyBorderWindows()
{
if( !electric_have_borders)
return;
electric_have_borders = false;
if(electric_top_border)
XDestroyWindow(qt_xdisplay(),electric_top_border);
if(electric_bottom_border)
XDestroyWindow(qt_xdisplay(),electric_bottom_border);
if(electric_left_border)
XDestroyWindow(qt_xdisplay(),electric_left_border);
if(electric_right_border)
XDestroyWindow(qt_xdisplay(),electric_right_border);
electric_top_border = None;
electric_bottom_border = None;
electric_left_border = None;
electric_right_border = None;
}
void Workspace::clientMoved(const QPoint &pos, Time now)
{
if (options->electricBorders() == Options::ElectricDisabled)
return;
if ((pos.x() != electricLeft) &&
(pos.x() != electricRight) &&
(pos.y() != electricTop) &&
(pos.y() != electricBottom))
return;
Time treshold_set = options->electricBorderDelay(); // set timeout
Time treshold_reset = 250; // reset timeout
int distance_reset = 10; // Mouse should not move more than this many pixels
int border = 0;
if (pos.x() == electricLeft)
border = 1;
else if (pos.x() == electricRight)
border = 2;
else if (pos.y() == electricTop)
border = 3;
else if (pos.y() == electricBottom)
border = 4;
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 = 0;
QRect r = QApplication::desktop()->geometry();
int offset;
int desk_before = currentDesktop();
switch(border)
{
case 1:
slotSwitchDesktopLeft();
if (currentDesktop() != desk_before)
{
offset = r.width() / 5;
QCursor::setPos(r.width() - offset, pos.y());
}
break;
case 2:
slotSwitchDesktopRight();
if (currentDesktop() != desk_before)
{
offset = r.width() / 5;
QCursor::setPos(offset, pos.y());
}
break;
case 3:
slotSwitchDesktopUp();
if (currentDesktop() != desk_before)
{
offset = r.height() / 5;
QCursor::setPos(pos.x(), r.height() - offset);
}
break;
case 4:
slotSwitchDesktopDown();
if (currentDesktop() != desk_before)
{
offset = r.height() / 5;
QCursor::setPos(pos.x(), offset);
}
break;
}
return;
}
}
else
{
electric_current_border = border;
electric_time_first = now;
electric_time_last = now;
electric_push_point = pos;
}
int mouse_warp = 1;
// reset the pointer to find out wether the user is really pushing
switch( border)
{
case 1: QCursor::setPos(pos.x()+mouse_warp, pos.y()); break;
case 2: QCursor::setPos(pos.x()-mouse_warp, pos.y()); break;
case 3: QCursor::setPos(pos.x(), pos.y()+mouse_warp); break;
case 4: QCursor::setPos(pos.x(), pos.y()-mouse_warp); break;
}
}
// this function is called when the user entered an electric border
// with the mouse. It may switch to another virtual desktop
void Workspace::electricBorder(XEvent *e)
{
Time now = e->xcrossing.time;
QPoint p(e->xcrossing.x_root, e->xcrossing.y_root);
clientMoved(p, now);
}
// electric borders (input only windows) have to be always on the
// top. For that reason kwm calls this function always after some
// windows have been raised.
void Workspace::raiseElectricBorders()
{
if(electric_have_borders)
{
XRaiseWindow(qt_xdisplay(), electric_top_border);
XRaiseWindow(qt_xdisplay(), electric_left_border);
XRaiseWindow(qt_xdisplay(), electric_bottom_border);
XRaiseWindow(qt_xdisplay(), electric_right_border);
}
}
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();
}
// kdDebug() << "NEW TOPMENU:" << c << endl;
}
void Workspace::removeTopMenu( Client* c )
{
// if( c->isTopMenu())
// kdDebug() << "REMOVE TOPMENU:" << c << endl;
assert( c->isTopMenu());
assert( topmenus.contains( c ));
topmenus.remove( c );
updateCurrentTopMenu();
// TODO reduce topMenuHeight() if possible?
}
void Workspace::lostTopMenuSelection()
{
// kdDebug() << "lost TopMenu selection" << endl;
// 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;
// kdDebug() << "TopMenu selection lost owner" << endl;
if( !topmenu_selection->claim( false ))
{
// kdDebug() << "Failed to claim TopMenu selection" << endl;
return;
}
// kdDebug() << "claimed TopMenu selection" << endl;
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;
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.insertItem( "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, KStartupInfoData& data )
{
return startup->checkStartup( w, data ) == KStartupInfo::Match;
}
/*!
Puts the focus on a dummy window
Just using XSetInputFocus() with None would block keyboard input
*/
void Workspace::focusToNull()
{
XSetInputFocus(qt_xdisplay(), null_focus_window, RevertToPointerRoot, qt_x_time );
}
void Workspace::helperDialog( const QString& message, const Client* c )
{
QStringList args;
QString type;
if( message == "noborderaltf3" )
{
QString shortcut = QString( "%1 (%2)" ).arg( keys->label( "Window Operations Menu" ))
.arg( keys->shortcut( "Window Operations Menu" ).seq( 0 ).toString());
args << "--msgbox" <<
i18n( "You have selected to show a window without its border.\n"
"Without the border, you won't be able to enable the border "
"again using the mouse. Use the window operations menu instead, "
"activated using the %1 keyboard shortcut." )
.arg( shortcut );
type = "altf3warning";
}
else if( message == "fullscreenaltf3" )
{
QString shortcut = QString( "%1 (%2)" ).arg( keys->label( "Window Operations Menu" ))
.arg( keys->shortcut( "Window Operations Menu" ).seq( 0 ).toString());
args << "--msgbox" <<
i18n( "You have selected to show a window in fullscreen mode.\n"
"If the application itself doesn't have an option to turn the fullscreen "
"mode off, you won't be able to disable it "
"again using the mouse. Use the window operations menu instead, "
"activated using the %1 keyboard shortcut." )
.arg( shortcut );
type = "altf3warning";
}
else
assert( false );
KProcess proc;
proc << "kdialog" << args;
if( !type.isEmpty())
{
KConfig cfg( "kwin_dialogsrc" );
cfg.setGroup( "Notification Messages" ); // this depends on KMessageBox
if( !cfg.readBoolEntry( type, true )) // has don't show again checked
return; // save launching kdialog
proc << "--dontagain" << "kwin_dialogsrc:" + type;
}
if( c != NULL )
proc << "--embed" << QString::number( c->window());
proc.start( KProcess::DontCare );
}
} // namespace
#include "workspace.moc"
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