workspace.cpp

00001 /*****************************************************************
00002  KWin - the KDE window manager
00003  This file is part of the KDE project.
00004 
00005 Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
00006 Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
00007 
00008 You can Freely distribute this program under the GNU General Public
00009 License. See the file "COPYING" for the exact licensing terms.
00010 ******************************************************************/
00011 
00012 //#define QT_CLEAN_NAMESPACE
00013 
00014 #include "workspace.h"
00015 
00016 #include <kapplication.h>
00017 #include <kstartupinfo.h>
00018 #include <fixx11h.h>
00019 #include <kconfig.h>
00020 #include <kglobal.h>
00021 #include <qpopupmenu.h>
00022 #include <klocale.h>
00023 #include <qregexp.h>
00024 #include <qpainter.h>
00025 #include <qbitmap.h>
00026 #include <qclipboard.h>
00027 #include <kmenubar.h>
00028 #include <kprocess.h>
00029 #include <kglobalaccel.h>
00030 #include <dcopclient.h>
00031 #include <kipc.h>
00032 
00033 #include "plugins.h"
00034 #include "client.h"
00035 #include "popupinfo.h"
00036 #include "tabbox.h"
00037 #include "atoms.h"
00038 #include "placement.h"
00039 #include "notifications.h"
00040 #include "group.h"
00041 #include "rules.h"
00042 
00043 #include <X11/extensions/shape.h>
00044 #include <X11/keysym.h>
00045 #include <X11/keysymdef.h>
00046 #include <X11/cursorfont.h>
00047 
00048 extern Time qt_x_time;
00049 
00050 namespace KWinInternal
00051 {
00052 
00053 extern int screen_number;
00054 
00055 Workspace *Workspace::_self = 0;
00056 
00057 KProcess* kompmgr = 0;
00058 KSelectionOwner* kompmgr_selection;
00059 
00060 bool allowKompmgrRestart = TRUE;
00061 
00062 // Rikkus: This class is too complex. It needs splitting further.
00063 // It's a nightmare to understand, especially with so few comments :(
00064 
00065 // Matthias: Feel free to ask me questions about it. Feel free to add
00066 // comments. I disagree that further splittings makes it easier. 2500
00067 // lines are not too much. It's the task that is complex, not the
00068 // code.
00069 Workspace::Workspace( bool restore )
00070   : DCOPObject        ("KWinInterface"),
00071     QObject           (0, "workspace"),
00072     current_desktop   (0),
00073     number_of_desktops(0),
00074     active_popup( NULL ),
00075     active_popup_client( NULL ),
00076     desktop_widget    (0),
00077     temporaryRulesMessages( "_KDE_NET_WM_TEMPORARY_RULES", NULL, false ),
00078     rules_updates_disabled( false ),
00079     active_client     (0),
00080     last_active_client     (0),
00081     most_recently_raised (0),
00082     movingClient(0),
00083     pending_take_activity ( NULL ),
00084     delayfocus_client (0),
00085     showing_desktop( false ),
00086     block_showing_desktop( 0 ),
00087     was_user_interaction (false),
00088     session_saving    (false),
00089     control_grab      (false),
00090     tab_grab          (false),
00091     mouse_emulation   (false),
00092     block_focus       (0),
00093     tab_box           (0),
00094     popupinfo         (0),
00095     popup             (0),
00096     advanced_popup    (0),
00097     desk_popup        (0),
00098     desk_popup_index  (0),
00099     keys              (0),
00100     client_keys       ( NULL ),
00101     client_keys_dialog ( NULL ),
00102     client_keys_client ( NULL ),
00103     disable_shortcuts_keys ( NULL ),
00104     global_shortcuts_disabled( false ),
00105     global_shortcuts_disabled_for_client( false ),
00106     root              (0),
00107     workspaceInit     (true),
00108     startup(0), electric_have_borders(false),
00109     electric_current_border(0),
00110     electric_top_border(None),
00111     electric_bottom_border(None),
00112     electric_left_border(None),
00113     electric_right_border(None),
00114     layoutOrientation(Qt::Vertical),
00115     layoutX(-1),
00116     layoutY(2),
00117     workarea(NULL),
00118     screenarea(NULL),
00119     managing_topmenus( false ),
00120     topmenu_selection( NULL ),
00121     topmenu_watcher( NULL ),
00122     topmenu_height( 0 ),
00123     topmenu_space( NULL ),
00124     set_active_client_recursion( 0 ),
00125     block_stacking_updates( 0 ),
00126     forced_global_mouse_grab( false )
00127     {
00128     _self = this;
00129     mgr = new PluginMgr;
00130     root = qt_xrootwin();
00131     default_colormap = DefaultColormap(qt_xdisplay(), qt_xscreen() );
00132     installed_colormap = default_colormap;
00133     session.setAutoDelete( TRUE );
00134 
00135     connect( &temporaryRulesMessages, SIGNAL( gotMessage( const QString& )),
00136         this, SLOT( gotTemporaryRulesMessage( const QString& )));
00137     connect( &rulesUpdatedTimer, SIGNAL( timeout()), this, SLOT( writeWindowRules()));
00138 
00139     updateXTime(); // needed for proper initialization of user_time in Client ctor
00140 
00141     delayFocusTimer = 0; 
00142     
00143     electric_time_first = qt_x_time;
00144     electric_time_last = qt_x_time;
00145 
00146     if ( restore )
00147       loadSessionInfo();
00148 
00149     loadWindowRules();
00150 
00151     (void) QApplication::desktop(); // trigger creation of desktop widget
00152 
00153     desktop_widget =
00154       new QWidget(
00155         0,
00156         "desktop_widget",
00157         Qt::WType_Desktop | Qt::WPaintUnclipped
00158     );
00159 
00160     kapp->setGlobalMouseTracking( true ); // so that this doesn't mess eventmask on root window later
00161     // call this before XSelectInput() on the root window
00162     startup = new KStartupInfo(
00163         KStartupInfo::DisableKWinModule | KStartupInfo::AnnounceSilenceChanges, this );
00164 
00165     // select windowmanager privileges
00166     XSelectInput(qt_xdisplay(), root,
00167                  KeyPressMask |
00168                  PropertyChangeMask |
00169                  ColormapChangeMask |
00170                  SubstructureRedirectMask |
00171                  SubstructureNotifyMask |
00172                  FocusChangeMask // for NotifyDetailNone
00173                  );
00174 
00175     Shape::init();
00176 
00177     // compatibility
00178     long data = 1;
00179 
00180     XChangeProperty(
00181       qt_xdisplay(),
00182       qt_xrootwin(),
00183       atoms->kwin_running,
00184       atoms->kwin_running,
00185       32,
00186       PropModeAppend,
00187       (unsigned char*) &data,
00188       1
00189     );
00190 
00191     client_keys = new KGlobalAccel( this );
00192     initShortcuts();
00193     tab_box = new TabBox( this );
00194     popupinfo = new PopupInfo( );
00195 
00196     init();
00197 
00198 #if (QT_VERSION-0 >= 0x030200) // XRANDR support
00199     connect( kapp->desktop(), SIGNAL( resized( int )), SLOT( desktopResized()));
00200 #endif
00201 
00202     // start kompmgr - i wanted to put this into main.cpp, but that would prevent dcop support, as long as Application was no dcop_object
00203     if (options->useTranslucency)
00204         {
00205         kompmgr = new KProcess;
00206         connect(kompmgr, SIGNAL(receivedStderr(KProcess*, char*, int)), SLOT(handleKompmgrOutput(KProcess*, char*, int)));
00207         *kompmgr << "kompmgr";
00208         startKompmgr();
00209         }
00210     }
00211 
00212 
00213 void Workspace::init()
00214     {
00215     checkElectricBorders();
00216 
00217 // not used yet
00218 //     topDock = 0L;
00219 //     maximizedWindowCounter = 0;
00220     
00221     supportWindow = new QWidget;
00222     XLowerWindow( qt_xdisplay(), supportWindow->winId()); // see usage in layers.cpp
00223 
00224     XSetWindowAttributes attr;
00225     attr.override_redirect = 1;
00226     null_focus_window = XCreateWindow( qt_xdisplay(), qt_xrootwin(), -1,-1, 1, 1, 0, CopyFromParent,
00227         InputOnly, CopyFromParent, CWOverrideRedirect, &attr );
00228     XMapWindow(qt_xdisplay(), null_focus_window);
00229 
00230     unsigned long protocols[ 5 ] =
00231         {
00232         NET::Supported |
00233         NET::SupportingWMCheck |
00234         NET::ClientList |
00235         NET::ClientListStacking |
00236         NET::DesktopGeometry |
00237         NET::NumberOfDesktops |
00238         NET::CurrentDesktop |
00239         NET::ActiveWindow |
00240         NET::WorkArea |
00241         NET::CloseWindow |
00242         NET::DesktopNames |
00243         NET::KDESystemTrayWindows |
00244         NET::WMName |
00245         NET::WMVisibleName |
00246         NET::WMDesktop |
00247         NET::WMWindowType |
00248         NET::WMState |
00249         NET::WMStrut |
00250         NET::WMIconGeometry |
00251         NET::WMIcon |
00252         NET::WMPid |
00253         NET::WMMoveResize |
00254         NET::WMKDESystemTrayWinFor |
00255         NET::WMFrameExtents |
00256         NET::WMPing
00257         ,
00258         NET::NormalMask |
00259         NET::DesktopMask |
00260         NET::DockMask |
00261         NET::ToolbarMask |
00262         NET::MenuMask |
00263         NET::DialogMask |
00264         NET::OverrideMask |
00265         NET::TopMenuMask |
00266         NET::UtilityMask |
00267         NET::SplashMask |
00268         0
00269         ,
00270         NET::Modal |
00271 //        NET::Sticky |  // large desktops not supported (and probably never will be)
00272         NET::MaxVert |
00273         NET::MaxHoriz |
00274         NET::Shaded |
00275         NET::SkipTaskbar |
00276         NET::KeepAbove |
00277 //        NET::StaysOnTop |  the same like KeepAbove
00278         NET::SkipPager |
00279         NET::Hidden |
00280         NET::FullScreen |
00281         NET::KeepBelow |
00282         NET::DemandsAttention |
00283         0
00284         ,
00285         NET::WM2UserTime |
00286         NET::WM2StartupId |
00287         NET::WM2AllowedActions |
00288         NET::WM2RestackWindow |
00289         NET::WM2MoveResizeWindow |
00290         NET::WM2ExtendedStrut |
00291         NET::WM2KDETemporaryRules |
00292         NET::WM2ShowingDesktop |
00293         0
00294         ,
00295         NET::ActionMove |
00296         NET::ActionResize |
00297         NET::ActionMinimize |
00298         NET::ActionShade |
00299 //        NET::ActionStick | // Sticky state is not supported
00300         NET::ActionMaxVert |
00301         NET::ActionMaxHoriz |
00302         NET::ActionFullScreen |
00303         NET::ActionChangeDesktop |
00304         NET::ActionClose |
00305         0
00306         ,
00307         };
00308 
00309     rootInfo = new RootInfo( this, qt_xdisplay(), supportWindow->winId(), "KWin",
00310         protocols, 5, qt_xscreen() );
00311 
00312     loadDesktopSettings();
00313     // extra NETRootInfo instance in Client mode is needed to get the values of the properties
00314     NETRootInfo client_info( qt_xdisplay(), NET::ActiveWindow | NET::CurrentDesktop );
00315     int initial_desktop;
00316     if( !kapp->isSessionRestored())
00317         initial_desktop = client_info.currentDesktop();
00318     else
00319         {
00320         KConfigGroupSaver saver( kapp->sessionConfig(), "Session" );
00321         initial_desktop = kapp->sessionConfig()->readNumEntry( "desktop", 1 );
00322         }
00323     if( !setCurrentDesktop( initial_desktop ))
00324         setCurrentDesktop( 1 );
00325 
00326     // now we know how many desktops we'll, thus, we initialise the positioning object
00327     initPositioning = new Placement(this);
00328 
00329     connect(&reconfigureTimer, SIGNAL(timeout()), this,
00330             SLOT(slotReconfigure()));
00331     connect( &updateToolWindowsTimer, SIGNAL( timeout()), this, SLOT( slotUpdateToolWindows()));
00332 
00333     connect(kapp, SIGNAL(appearanceChanged()), this,
00334             SLOT(slotReconfigure()));
00335     connect(kapp, SIGNAL(settingsChanged(int)), this,
00336             SLOT(slotSettingsChanged(int)));
00337     connect(kapp, SIGNAL( kipcMessage( int, int )), this, SLOT( kipcMessage( int, int )));
00338 
00339     active_client = NULL;
00340     rootInfo->setActiveWindow( None );
00341     focusToNull();
00342     if( !kapp->isSessionRestored())
00343         ++block_focus; // because it will be set below
00344 
00345     char nm[ 100 ];
00346     sprintf( nm, "_KDE_TOPMENU_OWNER_S%d", DefaultScreen( qt_xdisplay()));
00347     Atom topmenu_atom = XInternAtom( qt_xdisplay(), nm, False );
00348     topmenu_selection = new KSelectionOwner( topmenu_atom );
00349     topmenu_watcher = new KSelectionWatcher( topmenu_atom );
00350 // TODO grabXServer(); - where exactly put this? topmenu selection claiming down belong must be before
00351 
00352         { // begin updates blocker block
00353         StackingUpdatesBlocker blocker( this );
00354 
00355         if( options->topMenuEnabled() && topmenu_selection->claim( false ))
00356             setupTopMenuHandling(); // this can call updateStackingOrder()
00357         else
00358             lostTopMenuSelection();
00359 
00360         unsigned int i, nwins;
00361         Window root_return, parent_return, *wins;
00362         XQueryTree(qt_xdisplay(), root, &root_return, &parent_return, &wins, &nwins);
00363         for (i = 0; i < nwins; i++) 
00364             {
00365             XWindowAttributes attr;
00366             XGetWindowAttributes(qt_xdisplay(), wins[i], &attr);
00367             if (attr.override_redirect )
00368                 continue;
00369             if( topmenu_space && topmenu_space->winId() == wins[ i ] )
00370                 continue;
00371             if (attr.map_state != IsUnmapped) 
00372                 {
00373                 if ( addSystemTrayWin( wins[i] ) )
00374                     continue;
00375                 Client* c = createClient( wins[i], true );
00376                 if ( c != NULL && root != qt_xrootwin() ) 
00377                     { // TODO what is this?
00378                 // TODO may use QWidget:.create
00379                     XReparentWindow( qt_xdisplay(), c->frameId(), root, 0, 0 );
00380                     c->move(0,0);
00381                     }
00382                 }
00383             }
00384         if ( wins )
00385             XFree((void *) wins);
00386     // propagate clients, will really happen at the end of the updates blocker block
00387         updateStackingOrder( true );
00388 
00389         updateClientArea();
00390         raiseElectricBorders();
00391 
00392     // NETWM spec says we have to set it to (0,0) if we don't support it
00393         NETPoint* viewports = new NETPoint[ number_of_desktops ];
00394         rootInfo->setDesktopViewport( number_of_desktops, *viewports );
00395         delete[] viewports;
00396         QRect geom = QApplication::desktop()->geometry();
00397         NETSize desktop_geometry;
00398         desktop_geometry.width = geom.width();
00399         desktop_geometry.height = geom.height();
00400         rootInfo->setDesktopGeometry( -1, desktop_geometry );
00401         setShowingDesktop( false );
00402 
00403         } // end updates blocker block
00404 
00405     Client* new_active_client = NULL;
00406     if( !kapp->isSessionRestored())
00407         {
00408         --block_focus;
00409         new_active_client = findClient( WindowMatchPredicate( client_info.activeWindow()));
00410         }
00411     if( new_active_client == NULL
00412         && activeClient() == NULL && should_get_focus.count() == 0 ) // no client activated in manage()
00413         {
00414         if( new_active_client == NULL )
00415             new_active_client = topClientOnDesktop( currentDesktop());
00416         if( new_active_client == NULL && !desktops.isEmpty() )
00417             new_active_client = findDesktop( true, currentDesktop());
00418         }
00419     if( new_active_client != NULL )
00420         activateClient( new_active_client );
00421     // SELI TODO this won't work with unreasonable focus policies,
00422     // and maybe in rare cases also if the selected client doesn't
00423     // want focus
00424     workspaceInit = false;
00425 // TODO ungrabXServer()
00426     }
00427 
00428 Workspace::~Workspace()
00429     {
00430     if (kompmgr)
00431         delete kompmgr;
00432     blockStackingUpdates( true );
00433 // TODO    grabXServer();
00434     // use stacking_order, so that kwin --replace keeps stacking order
00435     for( ClientList::ConstIterator it = stacking_order.begin();
00436          it != stacking_order.end();
00437          ++it )
00438         {
00439     // only release the window
00440         (*it)->releaseWindow( true );
00441         // No removeClient() is called, it does more than just removing.
00442         // However, remove from some lists to e.g. prevent performTransiencyCheck()
00443         // from crashing.
00444         clients.remove( *it );
00445         desktops.remove( *it );
00446         }
00447     delete desktop_widget;
00448     delete tab_box;
00449     delete popupinfo;
00450     delete popup;
00451     if ( root == qt_xrootwin() )
00452         XDeleteProperty(qt_xdisplay(), qt_xrootwin(), atoms->kwin_running);
00453 
00454     writeWindowRules();
00455     KGlobal::config()->sync();
00456 
00457     delete rootInfo;
00458     delete supportWindow;
00459     delete mgr;
00460     delete[] workarea;
00461     delete[] screenarea;
00462     delete startup;
00463     delete initPositioning;
00464     delete topmenu_watcher;
00465     delete topmenu_selection;
00466     delete topmenu_space;
00467     delete client_keys_dialog;
00468     while( !rules.isEmpty())
00469         {
00470         delete rules.front();
00471         rules.pop_front();
00472         }
00473     XDestroyWindow( qt_xdisplay(), null_focus_window );
00474 // TODO    ungrabXServer();
00475     _self = 0;
00476     }
00477 
00478 Client* Workspace::createClient( Window w, bool is_mapped )
00479     {
00480     StackingUpdatesBlocker blocker( this );
00481     Client* c = new Client( this );
00482     if( !c->manage( w, is_mapped ))
00483         {
00484         Client::deleteClient( c, Allowed );
00485         return NULL;
00486         }
00487     addClient( c, Allowed );
00488     return c;
00489     }
00490 
00491 void Workspace::addClient( Client* c, allowed_t )
00492     {
00493     // waited with trans settings until window figured out if active or not ;)
00494 //     qWarning("%s", (const char*)(c->resourceClass()));
00495     c->setBMP(c->resourceName() == "beep-media-player" || c->decorationId() == None);
00496     // first check if the window has it's own opinion of it's translucency ;)
00497     c->getWindowOpacity();
00498     if (c->isDock())
00499         {
00500 //         if (c->x() == 0 && c->y() == 0 && c->width() > c->height()) topDock = c;
00501         if (!c->hasCustomOpacity()) // this xould be done slightly more efficient, but we want to support the topDock in future
00502             {
00503             c->setShadowSize(options->dockShadowSize);
00504             c->setOpacity(options->translucentDocks, options->dockOpacity);
00505             }
00506         }
00507 //------------------------------------------------        
00508     Group* grp = findGroup( c->window());
00509     if( grp != NULL )
00510         grp->gotLeader( c );
00511 
00512     if ( c->isDesktop() )
00513         {
00514         desktops.append( c );
00515         if( active_client == NULL && should_get_focus.isEmpty() && c->isOnCurrentDesktop())
00516             requestFocus( c ); // CHECKME? make sure desktop is active after startup if there's no other window active
00517         }
00518     else
00519         {
00520         updateFocusChains( c, FocusChainUpdate ); // add to focus chain if not already there
00521         clients.append( c );
00522         }
00523     if( !unconstrained_stacking_order.contains( c ))
00524         unconstrained_stacking_order.append( c );
00525     if( !stacking_order.contains( c )) // it'll be updated later, and updateToolWindows() requires
00526         stacking_order.append( c );    // c to be in stacking_order
00527     if( c->isTopMenu())
00528         addTopMenu( c );
00529     updateClientArea(); // this cannot be in manage(), because the client got added only now
00530     updateClientLayer( c );
00531     if( c->isDesktop())
00532         {
00533         raiseClient( c );
00534     // if there's no active client, make this desktop the active one
00535         if( activeClient() == NULL && should_get_focus.count() == 0 )
00536             activateClient( findDesktop( true, currentDesktop()));
00537         }
00538     c->checkActiveModal();
00539     checkTransients( c->window()); // SELI does this really belong here?
00540     updateStackingOrder( true ); // propagate new client
00541     if( c->isUtility() || c->isMenu() || c->isToolbar())
00542         updateToolWindows( true );
00543     checkNonExistentClients();
00544     }
00545 
00546 /*
00547   Destroys the client \a c
00548  */
00549 void Workspace::removeClient( Client* c, allowed_t )
00550     {
00551     if (c == active_popup_client)
00552         closeActivePopup();
00553 
00554     if( client_keys_client == c )
00555         setupWindowShortcutDone( false );
00556     if( !c->shortcut().isNull())
00557         c->setShortcut( QString::null ); // remove from client_keys
00558 
00559     if( c->isDialog())
00560         Notify::raise( Notify::TransDelete );
00561     if( c->isNormalWindow())
00562         Notify::raise( Notify::Delete );
00563 
00564     Q_ASSERT( clients.contains( c ) || desktops.contains( c ));
00565     clients.remove( c );
00566     desktops.remove( c );
00567     unconstrained_stacking_order.remove( c );
00568     stacking_order.remove( c );
00569     for( int i = 1;
00570          i <= numberOfDesktops();
00571          ++i )
00572         focus_chain[ i ].remove( c );
00573     global_focus_chain.remove( c );
00574     attention_chain.remove( c );
00575     showing_desktop_clients.remove( c );
00576     if( c->isTopMenu())
00577         removeTopMenu( c );
00578     Group* group = findGroup( c->window());
00579     if( group != NULL )
00580         group->lostLeader();
00581 
00582     if ( c == most_recently_raised )
00583         most_recently_raised = 0;
00584     should_get_focus.remove( c );
00585     Q_ASSERT( c != active_client );
00586     if ( c == last_active_client )
00587         last_active_client = 0;
00588     if( c == pending_take_activity )
00589         pending_take_activity = NULL;
00590     if( c == delayfocus_client )
00591         cancelDelayFocus();
00592 
00593     updateStackingOrder( true );
00594 
00595     if (tab_grab)
00596        tab_box->repaint();
00597 
00598     updateClientArea();
00599     }
00600 
00601 void Workspace::updateFocusChains( Client* c, FocusChainChange change )
00602     {
00603     if( !c->wantsTabFocus()) // doesn't want tab focus, remove
00604         {
00605         for( int i=1;
00606              i<= numberOfDesktops();
00607              ++i )
00608             focus_chain[i].remove(c);
00609         global_focus_chain.remove( c );
00610         return;
00611         }
00612     if(c->desktop() == NET::OnAllDesktops)
00613         { //now on all desktops, add it to focus_chains it is not already in
00614         for( int i=1; i<= numberOfDesktops(); i++)
00615             { // making first/last works only on current desktop, don't affect all desktops
00616             if( i == currentDesktop()
00617                 && ( change == FocusChainMakeFirst || change == FocusChainMakeLast ))
00618                 {
00619                 focus_chain[ i ].remove( c );
00620                 if( change == FocusChainMakeFirst )
00621                     focus_chain[ i ].append( c );
00622                 else
00623                     focus_chain[ i ].prepend( c );
00624                 }
00625             else if( !focus_chain[ i ].contains( c ))
00626                 { // add it after the active one
00627                 if( active_client != NULL && active_client != c
00628                     && !focus_chain[ i ].isEmpty() && focus_chain[ i ].last() == active_client )
00629                     focus_chain[ i ].insert( focus_chain[ i ].fromLast(), c );
00630                 else
00631                     focus_chain[ i ].append( c ); // otherwise add as the first one
00632                 }
00633             }
00634         }
00635     else    //now only on desktop, remove it anywhere else
00636         {
00637         for( int i=1; i<= numberOfDesktops(); i++)
00638             {
00639             if( i == c->desktop())
00640                 {
00641                 if( change == FocusChainMakeFirst )
00642                     {
00643                     focus_chain[ i ].remove( c );
00644                     focus_chain[ i ].append( c );
00645                     }
00646                 else if( change == FocusChainMakeLast )
00647                     {
00648                     focus_chain[ i ].remove( c );
00649                     focus_chain[ i ].prepend( c );
00650                     }
00651                 else if( !focus_chain[ i ].contains( c ))
00652                     {
00653                     if( active_client != NULL && active_client != c
00654                         && !focus_chain[ i ].isEmpty() && focus_chain[ i ].last() == active_client )
00655                         focus_chain[ i ].insert( focus_chain[ i ].fromLast(), c );
00656                     else
00657                         focus_chain[ i ].append( c ); // otherwise add as the first one
00658                     }
00659                 }
00660             else
00661                 focus_chain[ i ].remove( c );
00662             }
00663         }
00664     if( change == FocusChainMakeFirst )
00665         {
00666         global_focus_chain.remove( c );
00667         global_focus_chain.append( c );
00668         }
00669     else if( change == FocusChainMakeLast )
00670         {
00671         global_focus_chain.remove( c );
00672         global_focus_chain.prepend( c );
00673         }
00674     else if( !global_focus_chain.contains( c ))
00675         {
00676         if( active_client != NULL && active_client != c
00677             && !global_focus_chain.isEmpty() && global_focus_chain.last() == active_client )
00678             global_focus_chain.insert( global_focus_chain.fromLast(), c );
00679         else
00680             global_focus_chain.append( c ); // otherwise add as the first one
00681         }
00682     }
00683 
00684 void Workspace::updateCurrentTopMenu()
00685     {
00686     if( !managingTopMenus())
00687         return;
00688     // toplevel menubar handling
00689     Client* menubar = 0;
00690     bool block_desktop_menubar = false;
00691     if( active_client )
00692         {
00693         // show the new menu bar first...
00694         Client* menu_client = active_client;
00695         for(;;)
00696             {
00697             if( menu_client->isFullScreen())
00698                 block_desktop_menubar = true;
00699             for( ClientList::ConstIterator it = menu_client->transients().begin();
00700                  it != menu_client->transients().end();
00701                  ++it )
00702                 if( (*it)->isTopMenu())
00703                     {
00704                     menubar = *it;
00705                     break;
00706                     }
00707             if( menubar != NULL || !menu_client->isTransient())
00708                 break;
00709             if( menu_client->isModal() || menu_client->transientFor() == NULL )
00710                 break; // don't use mainwindow's menu if this is modal or group transient
00711             menu_client = menu_client->transientFor();
00712             }
00713         if( !menubar )
00714             { // try to find any topmenu from the application (#72113)
00715             for( ClientList::ConstIterator it = active_client->group()->members().begin();
00716                  it != active_client->group()->members().end();
00717                  ++it )
00718                 if( (*it)->isTopMenu())
00719                     {
00720                     menubar = *it;
00721                     break;
00722                     }
00723             }
00724         }
00725     if( !menubar && !block_desktop_menubar && options->desktopTopMenu())
00726         {
00727         // Find the menubar of the desktop
00728         Client* desktop = findDesktop( true, currentDesktop());
00729         if( desktop != NULL )
00730             {
00731             for( ClientList::ConstIterator it = desktop->transients().begin();
00732                  it != desktop->transients().end();
00733                  ++it )
00734                 if( (*it)->isTopMenu())
00735                     {
00736                     menubar = *it;
00737                     break;
00738                     }
00739             }
00740         // TODO to be cleaned app with window grouping
00741         // Without qt-copy patch #0009, the topmenu and desktop are not in the same group,
00742         // thus the topmenu is not transient for it :-/.
00743         if( menubar == NULL )
00744             {
00745             for( ClientList::ConstIterator it = topmenus.begin();
00746                  it != topmenus.end();
00747                  ++it )
00748                 if( (*it)->wasOriginallyGroupTransient()) // kdesktop's topmenu has WM_TRANSIENT_FOR
00749                     {                                     // set pointing to the root window
00750                     menubar = *it;                        // to recognize it here
00751                     break;                                // Also, with the xroot hack in kdesktop,
00752                     }                                     // there's no NET::Desktop window to be transient for
00753             }
00754         }
00755 
00756 //    kdDebug() << "CURRENT TOPMENU:" << menubar << ":" << active_client << endl;
00757     if ( menubar )
00758         {
00759         if( active_client && !menubar->isOnDesktop( active_client->desktop()))
00760             menubar->setDesktop( active_client->desktop());
00761         menubar->hideClient( false );
00762         topmenu_space->hide();
00763         // make it appear like it's been raised manually - it's in the Dock layer anyway,
00764         // and not raising it could mess up stacking order of topmenus within one application,
00765         // and thus break raising of mainclients in raiseClient()
00766         unconstrained_stacking_order.remove( menubar );
00767         unconstrained_stacking_order.append( menubar );
00768         }
00769     else if( !block_desktop_menubar )
00770         { // no topmenu active - show the space window, so that there's not empty space
00771         topmenu_space->show();
00772         }
00773 
00774     // ... then hide the other ones. Avoids flickers.
00775     for ( ClientList::ConstIterator it = clients.begin(); it != clients.end(); ++it) 
00776         {
00777         if( (*it)->isTopMenu() && (*it) != menubar )
00778             (*it)->hideClient( true );
00779         }
00780     }
00781 
00782 
00783 void Workspace::updateToolWindows( bool also_hide )
00784     {
00785     // TODO what if Client's transiency/group changes? should this be called too? (I'm paranoid, am I not?)
00786     if( !options->hideUtilityWindowsForInactive )
00787         {
00788         for( ClientList::ConstIterator it = clients.begin();
00789              it != clients.end();
00790              ++it )
00791             (*it)->hideClient( false );
00792         return;
00793         }
00794     const Group* group = NULL;
00795     const Client* client = active_client;
00796 // Go up in transiency hiearchy, if the top is found, only tool transients for the top mainwindow
00797 // will be shown; if a group transient is group, all tools in the group will be shown
00798     while( client != NULL )
00799         {
00800         if( !client->isTransient())
00801             break;
00802         if( client->groupTransient())
00803             {
00804             group = client->group();
00805             break;
00806             }
00807         client = client->transientFor();
00808         }
00809     // use stacking order only to reduce flicker, it doesn't matter if block_stacking_updates == 0,
00810     // i.e. if it's not up to date
00811 
00812     // SELI but maybe it should - what if a new client has been added that's not in stacking order yet?
00813     ClientList to_show, to_hide;
00814     for( ClientList::ConstIterator it = stacking_order.begin();
00815          it != stacking_order.end();
00816          ++it )
00817         {
00818         if( (*it)->isUtility() || (*it)->isMenu() || (*it)->isToolbar())
00819             {
00820             bool show = true;
00821             if( !(*it)->isTransient())
00822                 {
00823                 if( (*it)->group()->members().count() == 1 ) // has its own group, keep always visible
00824                     show = true;
00825                 else if( client != NULL && (*it)->group() == client->group())
00826                     show = true;
00827                 else
00828                     show = false;
00829                 }
00830             else
00831                 {
00832                 if( group != NULL && (*it)->group() == group )
00833                     show = true;
00834                 else if( client != NULL && client->hasTransient( (*it), true ))
00835                     show = true;
00836                 else
00837                     show = false;
00838                 }
00839             if( !show && also_hide )
00840                 {
00841                 const ClientList mainclients = (*it)->mainClients();
00842                 // don't hide utility windows which are standalone(?) or
00843                 // have e.g. kicker as mainwindow
00844                 if( mainclients.isEmpty())
00845                     show = true;
00846                 for( ClientList::ConstIterator it2 = mainclients.begin();
00847                      it2 != mainclients.end();
00848                      ++it2 )
00849                     {
00850                     if( (*it2)->isSpecialWindow())
00851                         show = true;
00852                     }
00853                 if( !show )
00854                     to_hide.append( *it );
00855                 }
00856             if( show )
00857                 to_show.append( *it );
00858             }
00859         } // first show new ones, then hide
00860     for( ClientList::ConstIterator it = to_show.fromLast();
00861          it != to_show.end();
00862          --it ) // from topmost
00863         // TODO since this is in stacking order, the order of taskbar entries changes :(
00864         (*it)->hideClient( false );
00865     if( also_hide )
00866         {
00867         for( ClientList::ConstIterator it = to_hide.begin();
00868              it != to_hide.end();
00869              ++it ) // from bottommost
00870             (*it)->hideClient( true );
00871         updateToolWindowsTimer.stop();
00872         }
00873     else // setActiveClient() is after called with NULL client, quickly followed
00874         {    // by setting a new client, which would result in flickering
00875         updateToolWindowsTimer.start( 50, true );
00876         }
00877     }
00878 
00879 void Workspace::slotUpdateToolWindows()
00880     {
00881     updateToolWindows( true );
00882     }
00883 
00887 void Workspace::updateColormap()
00888     {
00889     Colormap cmap = default_colormap;
00890     if ( activeClient() && activeClient()->colormap() != None )
00891         cmap = activeClient()->colormap();
00892     if ( cmap != installed_colormap ) 
00893         {
00894         XInstallColormap(qt_xdisplay(), cmap );
00895         installed_colormap = cmap;
00896         }
00897     }
00898 
00899 void Workspace::reconfigure()
00900     {
00901     reconfigureTimer.start(200, true);
00902     }
00903 
00904 
00905 void Workspace::slotSettingsChanged(int category)
00906     {
00907     kdDebug(1212) << "Workspace::slotSettingsChanged()" << endl;
00908     if( category == (int) KApplication::SETTINGS_SHORTCUTS )
00909         readShortcuts();
00910     }
00911 
00915 KWIN_PROCEDURE( CheckBorderSizesProcedure, cl->checkBorderSizes() );
00916 
00917 void Workspace::slotReconfigure()
00918     {
00919     kdDebug(1212) << "Workspace::slotReconfigure()" << endl;
00920     reconfigureTimer.stop();
00921 
00922     KGlobal::config()->reparseConfiguration();
00923     unsigned long changed = options->updateSettings();
00924     tab_box->reconfigure();
00925     popupinfo->reconfigure();
00926     initPositioning->reinitCascading( 0 );
00927     readShortcuts();
00928     forEachClient( CheckIgnoreFocusStealingProcedure());
00929     updateToolWindows( true );
00930 
00931     if( mgr->reset( changed ))
00932         { // decorations need to be recreated
00933 #if 0 // This actually seems to make things worse now
00934         QWidget curtain;
00935         curtain.setBackgroundMode( NoBackground );
00936         curtain.setGeometry( QApplication::desktop()->geometry() );
00937         curtain.show();
00938 #endif
00939         for( ClientList::ConstIterator it = clients.begin();
00940                 it != clients.end();
00941                 ++it )
00942             {
00943             (*it)->updateDecoration( true, true );
00944             }
00945         mgr->destroyPreviousPlugin();
00946         }
00947     else
00948         {
00949         forEachClient( CheckBorderSizesProcedure());
00950         }
00951 
00952     checkElectricBorders();
00953 
00954     if( options->topMenuEnabled() && !managingTopMenus())
00955         {
00956         if( topmenu_selection->claim( false ))
00957             setupTopMenuHandling();
00958         else
00959             lostTopMenuSelection();
00960         }
00961     else if( !options->topMenuEnabled() && managingTopMenus())
00962         {
00963         topmenu_selection->release();
00964         lostTopMenuSelection();
00965         }
00966     topmenu_height = 0; // invalidate used menu height
00967     if( managingTopMenus())
00968         {
00969         updateTopMenuGeometry();
00970         updateCurrentTopMenu();
00971         }
00972 
00973     loadWindowRules();
00974     for( ClientList::Iterator it = clients.begin();
00975          it != clients.end();
00976          ++it )
00977         {
00978         (*it)->setupWindowRules( true );
00979         (*it)->applyWindowRules();
00980         discardUsedWindowRules( *it, false );
00981         }
00982 
00983     if (options->resetKompmgr) // need restart
00984         {
00985         bool tmp = options->useTranslucency;
00986         stopKompmgr();
00987         if (tmp)
00988             QTimer::singleShot( 200, this, SLOT(startKompmgr()) ); // wait some time to ensure system's ready for restart
00989         }
00990     }
00991 
00992 void Workspace::loadDesktopSettings()
00993     {
00994     KConfig* c = KGlobal::config();
00995     QCString groupname;
00996     if (screen_number == 0)
00997         groupname = "Desktops";
00998     else
00999         groupname.sprintf("Desktops-screen-%d", screen_number);
01000     KConfigGroupSaver saver(c,groupname);
01001 
01002     int n = c->readNumEntry("Number", 4);
01003     number_of_desktops = n;
01004     delete workarea;
01005     workarea = new QRect[ n + 1 ];
01006     delete screenarea;
01007     screenarea = NULL;
01008     rootInfo->setNumberOfDesktops( number_of_desktops );
01009     desktop_focus_chain.resize( n );
01010     // make it +1, so that it can be accessed as [1..numberofdesktops]
01011     focus_chain.resize( n + 1 );
01012     for(int i = 1; i <= n; i++) 
01013         {
01014         QString s = c->readEntry(QString("Name_%1").arg(i),
01015                                 i18n("Desktop %1").arg(i));
01016         rootInfo->setDesktopName( i, s.utf8().data() );
01017         desktop_focus_chain[i-1] = i;
01018         }
01019     }
01020 
01021 void Workspace::saveDesktopSettings()
01022     {
01023     KConfig* c = KGlobal::config();
01024     QCString groupname;
01025     if (screen_number == 0)
01026         groupname = "Desktops";
01027     else
01028         groupname.sprintf("Desktops-screen-%d", screen_number);
01029     KConfigGroupSaver saver(c,groupname);
01030 
01031     c->writeEntry("Number", number_of_desktops );
01032     for(int i = 1; i <= number_of_desktops; i++) 
01033         {
01034         QString s = desktopName( i );
01035         QString defaultvalue = i18n("Desktop %1").arg(i);
01036         if ( s.isEmpty() ) 
01037             {
01038             s = defaultvalue;
01039             rootInfo->setDesktopName( i, s.utf8().data() );
01040             }
01041 
01042         if (s != defaultvalue) 
01043             {
01044             c->writeEntry( QString("Name_%1").arg(i), s );
01045             }
01046         else 
01047             {
01048             QString currentvalue = c->readEntry(QString("Name_%1").arg(i));
01049             if (currentvalue != defaultvalue)
01050                 c->writeEntry( QString("Name_%1").arg(i), "" );
01051             }
01052         }
01053     }
01054 
01055 QStringList Workspace::configModules(bool controlCenter)
01056     {
01057     QStringList args;
01058     args <<  "kde-kwindecoration.desktop";
01059     if (controlCenter)
01060         args << "kde-kwinoptions.desktop";
01061     else if (kapp->authorizeControlModule("kde-kwinoptions.desktop"))
01062         args  << "kwinactions" << "kwinfocus" <<  "kwinmoving" << "kwinadvanced" << "kwinrules" << "kwintranslucency";
01063     return args;
01064     }
01065 
01066 void Workspace::configureWM()
01067     {
01068     KApplication::kdeinitExec( "kcmshell", configModules(false) );
01069     }
01070 
01074 void Workspace::doNotManage( QString title )
01075     {
01076     doNotManageList.append( title );
01077     }
01078 
01082 bool Workspace::isNotManaged( const QString& title )
01083     {
01084     for ( QStringList::Iterator it = doNotManageList.begin(); it != doNotManageList.end(); ++it ) 
01085         {
01086         QRegExp r( (*it) );
01087         if (r.search(title) != -1) 
01088             {
01089             doNotManageList.remove( it );
01090             return TRUE;
01091             }
01092         }
01093     return FALSE;
01094     }
01095 
01099 void Workspace::refresh() 
01100     {
01101     QWidget w;
01102     w.setGeometry( QApplication::desktop()->geometry() );
01103     w.show();
01104     w.hide();
01105     QApplication::flushX();
01106     }
01107 
01115 class ObscuringWindows
01116     {
01117     public:
01118         ~ObscuringWindows();
01119         void create( Client* c );
01120     private:
01121         QValueList<Window> obscuring_windows;
01122         static QValueList<Window>* cached;
01123         static unsigned int max_cache_size;
01124     };
01125 
01126 QValueList<Window>* ObscuringWindows::cached = 0;
01127 unsigned int ObscuringWindows::max_cache_size = 0;
01128 
01129 void ObscuringWindows::create( Client* c )
01130     {
01131     if( cached == 0 )
01132         cached = new QValueList<Window>;
01133     Window obs_win;
01134     XWindowChanges chngs;
01135     int mask = CWSibling | CWStackMode;
01136     if( cached->count() > 0 ) 
01137         {
01138         cached->remove( obs_win = cached->first());
01139         chngs.x = c->x();
01140         chngs.y = c->y();
01141         chngs.width = c->width();
01142         chngs.height = c->height();
01143         mask |= CWX | CWY | CWWidth | CWHeight;
01144         }
01145     else 
01146         {
01147         XSetWindowAttributes a;
01148         a.background_pixmap = None;
01149         a.override_redirect = True;
01150         obs_win = XCreateWindow( qt_xdisplay(), qt_xrootwin(), c->x(), c->y(),
01151             c->width(), c->height(), 0, CopyFromParent, InputOutput,
01152             CopyFromParent, CWBackPixmap | CWOverrideRedirect, &a );
01153         }
01154     chngs.sibling = c->frameId();
01155     chngs.stack_mode = Below;
01156     XConfigureWindow( qt_xdisplay(), obs_win, mask, &chngs );
01157     XMapWindow( qt_xdisplay(), obs_win );
01158     obscuring_windows.append( obs_win );
01159     }
01160 
01161 ObscuringWindows::~ObscuringWindows()
01162     {
01163     max_cache_size = QMAX( max_cache_size, obscuring_windows.count() + 4 ) - 1;
01164     for( QValueList<Window>::ConstIterator it = obscuring_windows.begin();
01165          it != obscuring_windows.end();
01166          ++it ) 
01167         {
01168         XUnmapWindow( qt_xdisplay(), *it );
01169         if( cached->count() < max_cache_size )
01170             cached->prepend( *it );
01171         else
01172             XDestroyWindow( qt_xdisplay(), *it );
01173         }
01174     }
01175 
01176 
01183 bool Workspace::setCurrentDesktop( int new_desktop )
01184     {
01185     if (new_desktop < 1 || new_desktop > number_of_desktops )
01186         return false;
01187 
01188     closeActivePopup();
01189     ++block_focus;
01190 // TODO    Q_ASSERT( block_stacking_updates == 0 ); // make sure stacking_order is up to date
01191     StackingUpdatesBlocker blocker( this );
01192 
01193     int old_desktop = current_desktop;
01194     if (new_desktop != current_desktop) 
01195         {
01196         ++block_showing_desktop;
01197         /*
01198           optimized Desktop switching: unmapping done from back to front
01199           mapping done from front to back => less exposure events
01200         */
01201         Notify::raise((Notify::Event) (Notify::DesktopChange+new_desktop));
01202 
01203         ObscuringWindows obs_wins;
01204 
01205         current_desktop = new_desktop; // change the desktop (so that Client::updateVisibility() works)
01206 
01207         for ( ClientList::ConstIterator it = stacking_order.begin(); it != stacking_order.end(); ++it)
01208             if ( !(*it)->isOnDesktop( new_desktop ) && (*it) != movingClient )
01209                 {
01210                 if( (*it)->isShown( true ) && (*it)->isOnDesktop( old_desktop ))
01211                     obs_wins.create( *it );
01212                 (*it)->updateVisibility();
01213                 }
01214 
01215         rootInfo->setCurrentDesktop( current_desktop ); // now propagate the change, after hiding, before showing
01216 
01217         if( movingClient && !movingClient->isOnDesktop( new_desktop ))
01218             movingClient->setDesktop( new_desktop );
01219 
01220         for ( ClientList::ConstIterator it = stacking_order.fromLast(); it != stacking_order.end(); --it)
01221             if ( (*it)->isOnDesktop( new_desktop ) )
01222                 (*it)->updateVisibility();
01223 
01224         --block_showing_desktop;
01225         if( showingDesktop()) // do this only after desktop change to avoid flicker
01226             resetShowingDesktop( false );
01227         }
01228 
01229     // restore the focus on this desktop
01230     --block_focus;
01231     Client* c = 0;
01232 
01233     if ( options->focusPolicyIsReasonable()) 
01234         {
01235         // Search in focus chain
01236         if ( movingClient != NULL && active_client == movingClient
01237             && focus_chain[currentDesktop()].contains( active_client )
01238             && active_client->isShown( true ) && active_client->isOnCurrentDesktop())
01239             {
01240             c = active_client; // the requestFocus below will fail, as the client is already active
01241             }
01242         if ( !c ) 
01243             {
01244             for( ClientList::ConstIterator it = focus_chain[currentDesktop()].fromLast();
01245                  it != focus_chain[currentDesktop()].end();
01246                  --it )
01247                 {
01248                 if ( (*it)->isShown( false ) && (*it)->isOnCurrentDesktop())
01249                     {
01250                     c = *it;
01251                     break;
01252                     }
01253                 }
01254             }
01255         }
01256 
01257     //if "unreasonable focus policy"
01258     // and active_client is on_all_desktops and under mouse (hence == old_active_client),
01259     // conserve focus (thanks to Volker Schatz <V.Schatz at thphys.uni-heidelberg.de>)
01260     else if( active_client && active_client->isShown( true ) && active_client->isOnCurrentDesktop())
01261       c = active_client;
01262 
01263     if( c == NULL && !desktops.isEmpty())
01264         c = findDesktop( true, currentDesktop());
01265 
01266     if( c != active_client )
01267         setActiveClient( NULL, Allowed );
01268 
01269     if ( c ) 
01270         requestFocus( c );
01271     else 
01272         focusToNull();
01273 
01274     updateCurrentTopMenu();
01275 
01276     // Update focus chain:
01277     //  If input: chain = { 1, 2, 3, 4 } and current_desktop = 3,
01278     //   Output: chain = { 3, 1, 2, 4 }.
01279 //    kdDebug(1212) << QString("Switching to desktop #%1, at focus_chain[currentDesktop()] index %2\n")
01280 //      .arg(currentDesktop()).arg(desktop_focus_chain.find( currentDesktop() ));
01281     for( int i = desktop_focus_chain.find( currentDesktop() ); i > 0; i-- )
01282         desktop_focus_chain[i] = desktop_focus_chain[i-1];
01283     desktop_focus_chain[0] = currentDesktop();
01284 
01285 //    QString s = "desktop_focus_chain[] = { ";
01286 //    for( uint i = 0; i < desktop_focus_chain.size(); i++ )
01287 //        s += QString::number(desktop_focus_chain[i]) + ", ";
01288 //    kdDebug(1212) << s << "}\n";
01289 
01290     if( old_desktop != 0 )  // not for the very first time
01291         popupinfo->showInfo( desktopName(currentDesktop()) );
01292     return true;
01293     }
01294 
01295 // called only from DCOP
01296 void Workspace::nextDesktop()
01297     {
01298     int desktop = currentDesktop() + 1;
01299     setCurrentDesktop(desktop > numberOfDesktops() ? 1 : desktop);
01300     }
01301 
01302 // called only from DCOP
01303 void Workspace::previousDesktop()
01304     {
01305     int desktop = currentDesktop() - 1;
01306     setCurrentDesktop(desktop > 0 ? desktop : numberOfDesktops());
01307     }
01308 
01309 int Workspace::desktopToRight( int desktop ) const
01310     {
01311     int x,y;
01312     calcDesktopLayout(x,y);
01313     int dt = desktop-1;
01314     if (layoutOrientation == Qt::Vertical)
01315         {
01316         dt += y;
01317         if ( dt >= numberOfDesktops() ) 
01318             {
01319             if ( options->rollOverDesktops )
01320               dt -= numberOfDesktops();
01321             else
01322               return desktop;
01323             }
01324         }
01325     else
01326         {
01327         int d = (dt % x) + 1;
01328         if ( d >= x ) 
01329             {
01330             if ( options->rollOverDesktops )
01331               d -= x;
01332             else
01333               return desktop;
01334             }
01335         dt = dt - (dt % x) + d;
01336         }
01337     return dt+1;
01338     }
01339 
01340 int Workspace::desktopToLeft( int desktop ) const
01341     {
01342     int x,y;
01343     calcDesktopLayout(x,y);
01344     int dt = desktop-1;
01345     if (layoutOrientation == Qt::Vertical)
01346         {
01347         dt -= y;
01348         if ( dt < 0 ) 
01349             {
01350             if ( options->rollOverDesktops )
01351               dt += numberOfDesktops();
01352             else
01353               return desktop;
01354             }
01355         }
01356     else
01357         {
01358         int d = (dt % x) - 1;
01359         if ( d < 0 ) 
01360             {
01361             if ( options->rollOverDesktops )
01362               d += x;
01363             else
01364               return desktop;
01365             }
01366         dt = dt - (dt % x) + d;
01367         }
01368     return dt+1;
01369     }
01370 
01371 int Workspace::desktopUp( int desktop ) const
01372     {
01373     int x,y;
01374     calcDesktopLayout(x,y);
01375     int dt = desktop-1;
01376     if (layoutOrientation == Qt::Horizontal)
01377         {
01378         dt -= x;
01379         if ( dt < 0 ) 
01380             {
01381             if ( options->rollOverDesktops )
01382               dt += numberOfDesktops();
01383             else
01384               return desktop;
01385             }
01386         }
01387     else
01388         {
01389         int d = (dt % y) - 1;
01390         if ( d < 0 ) 
01391             {
01392             if ( options->rollOverDesktops )
01393               d += y;
01394             else
01395               return desktop;
01396             }
01397         dt = dt - (dt % y) + d;
01398         }
01399     return dt+1;
01400     }
01401 
01402 int Workspace::desktopDown( int desktop ) const
01403     {
01404     int x,y;
01405     calcDesktopLayout(x,y);
01406     int dt = desktop-1;
01407     if (layoutOrientation == Qt::Horizontal)
01408         {
01409         dt += x;
01410         if ( dt >= numberOfDesktops() ) 
01411             {
01412             if ( options->rollOverDesktops )
01413               dt -= numberOfDesktops();
01414             else
01415               return desktop;
01416             }
01417         }
01418     else
01419         {
01420         int d = (dt % y) + 1;
01421         if ( d >= y ) 
01422             {
01423             if ( options->rollOverDesktops )
01424               d -= y;
01425             else
01426               return desktop;
01427             }
01428         dt = dt - (dt % y) + d;
01429         }
01430     return dt+1;
01431     }
01432 
01433 
01437 void Workspace::setNumberOfDesktops( int n )
01438     {
01439     if ( n == number_of_desktops )
01440         return;
01441     int old_number_of_desktops = number_of_desktops;
01442     number_of_desktops = n;
01443 
01444     if( currentDesktop() > numberOfDesktops())
01445         setCurrentDesktop( numberOfDesktops());
01446 
01447     // if increasing the number, do the resizing now,
01448     // otherwise after the moving of windows to still existing desktops
01449     if( old_number_of_desktops < number_of_desktops ) 
01450         {
01451         rootInfo->setNumberOfDesktops( number_of_desktops );
01452         NETPoint* viewports = new NETPoint[ number_of_desktops ];
01453         rootInfo->setDesktopViewport( number_of_desktops, *viewports );
01454         delete[] viewports;
01455         updateClientArea( true );
01456         focus_chain.resize( number_of_desktops + 1 );
01457         }
01458 
01459     // if the number of desktops decreased, move all
01460     // windows that would be hidden to the last visible desktop
01461     if( old_number_of_desktops > number_of_desktops ) 
01462         {
01463         for( ClientList::ConstIterator it = clients.begin();
01464               it != clients.end();
01465               ++it) 
01466             {
01467             if( !(*it)->isOnAllDesktops() && (*it)->desktop() > numberOfDesktops())
01468                 sendClientToDesktop( *it, numberOfDesktops(), true );
01469             }
01470         }
01471     if( old_number_of_desktops > number_of_desktops ) 
01472         {
01473         rootInfo->setNumberOfDesktops( number_of_desktops );
01474         NETPoint* viewports = new NETPoint[ number_of_desktops ];
01475         rootInfo->setDesktopViewport( number_of_desktops, *viewports );
01476         delete[] viewports;
01477         updateClientArea( true );
01478         focus_chain.resize( number_of_desktops + 1 );
01479         }
01480 
01481     saveDesktopSettings();
01482 
01483     // Resize and reset the desktop focus chain.
01484     desktop_focus_chain.resize( n );
01485     for( int i = 0; i < (int)desktop_focus_chain.size(); i++ )
01486         desktop_focus_chain[i] = i+1;
01487     }
01488 
01494 void Workspace::sendClientToDesktop( Client* c, int desk, bool dont_activate )
01495     {
01496     bool was_on_desktop = c->isOnDesktop( desk ) || c->isOnAllDesktops();
01497     c->setDesktop( desk );
01498     if ( c->desktop() != desk ) // no change or desktop forced
01499         return;
01500     desk = c->desktop(); // Client did range checking
01501 
01502     if ( c->isOnDesktop( currentDesktop() ) )
01503         {
01504         if ( c->wantsTabFocus() && options->focusPolicyIsReasonable()
01505             && !was_on_desktop // for stickyness changes
01506             && !dont_activate )
01507             requestFocus( c );
01508         else
01509             restackClientUnderActive( c );
01510         }
01511     else 
01512         {
01513         raiseClient( c );
01514         }
01515 
01516     ClientList transients_stacking_order = ensureStackingOrder( c->transients());
01517     for( ClientList::ConstIterator it = transients_stacking_order.begin();
01518          it != transients_stacking_order.end();
01519          ++it )
01520         sendClientToDesktop( *it, desk, dont_activate );
01521     updateClientArea();
01522     }
01523 
01524 void Workspace::setDesktopLayout(int o, int x, int y)
01525     {
01526     layoutOrientation = (Qt::Orientation) o;
01527     layoutX = x;
01528     layoutY = y;
01529     }
01530 
01531 void Workspace::calcDesktopLayout(int &x, int &y) const
01532     {
01533     x = layoutX;
01534     y = layoutY;
01535     if ((x == -1) && (y > 0))
01536        x = (numberOfDesktops()+y-1) / y;
01537     else if ((y == -1) && (x > 0))
01538        y = (numberOfDesktops()+x-1) / x;
01539 
01540     if (x == -1)
01541        x = 1;
01542     if (y == -1)
01543        y = 1;
01544     }
01545 
01550 bool Workspace::addSystemTrayWin( WId w )
01551     {
01552     if ( systemTrayWins.contains( w ) )
01553         return TRUE;
01554 
01555     NETWinInfo ni( qt_xdisplay(), w, root, NET::WMKDESystemTrayWinFor );
01556     WId trayWinFor = ni.kdeSystemTrayWinFor();
01557     if ( !trayWinFor )
01558         return FALSE;
01559     systemTrayWins.append( SystemTrayWindow( w, trayWinFor ) );
01560     XSelectInput( qt_xdisplay(), w,
01561                   StructureNotifyMask
01562                   );
01563     XAddToSaveSet( qt_xdisplay(), w );
01564     propagateSystemTrayWins();
01565     return TRUE;
01566     }
01567 
01572 bool Workspace::removeSystemTrayWin( WId w, bool check )
01573     {
01574     if ( !systemTrayWins.contains( w ) )
01575         return FALSE;
01576     if( check )
01577         {
01578     // When getting UnmapNotify, it's not clear if it's the systray
01579     // reparenting the window into itself, or if it's the window
01580     // going away. This is obviously a flaw in the design, and we were
01581     // just lucky it worked for so long. Kicker's systray temporarily
01582     // sets _KDE_SYSTEM_TRAY_EMBEDDING property on the window while
01583     // embedding it, allowing KWin to figure out. Kicker just mustn't
01584     // crash before removing it again ... *shrug* .
01585         int num_props;
01586         Atom* props = XListProperties( qt_xdisplay(), w, &num_props );
01587         if( props != NULL )
01588             {
01589             for( int i = 0;
01590                  i < num_props;
01591                  ++i )
01592                 if( props[ i ] == atoms->kde_system_tray_embedding )
01593                     {
01594                     XFree( props );
01595                     return false;
01596                     }
01597             XFree( props );
01598             }
01599         }
01600     systemTrayWins.remove( w );
01601     propagateSystemTrayWins();
01602     return TRUE;
01603     }
01604 
01605 
01609 void Workspace::propagateSystemTrayWins()
01610     {
01611     Window *cl = new Window[ systemTrayWins.count()];
01612 
01613     int i = 0;
01614     for ( SystemTrayWindowList::ConstIterator it = systemTrayWins.begin(); it != systemTrayWins.end(); ++it ) 
01615         {
01616         cl[i++] =  (*it).win;
01617         }
01618 
01619     rootInfo->setKDESystemTrayWindows( cl, i );
01620     delete [] cl;
01621     }
01622 
01623 
01624 void Workspace::killWindowId( Window window_to_kill )
01625     {
01626     if( window_to_kill == None )
01627         return;
01628     Window window = window_to_kill;
01629     Client* client = NULL;
01630     for(;;) 
01631         {
01632         client = findClient( FrameIdMatchPredicate( window ));
01633         if( client != NULL ) // found the client
01634             break;
01635         Window parent, root;
01636         Window* children;
01637         unsigned int children_count;
01638         XQueryTree( qt_xdisplay(), window, &root, &parent, &children, &children_count );
01639         if( children != NULL )
01640             XFree( children );
01641         if( window == root ) // we didn't find the client, probably an override-redirect window
01642             break;
01643         window = parent; // go up
01644         }
01645     if( client != NULL )
01646         client->killWindow();
01647     else
01648         XKillClient( qt_xdisplay(), window_to_kill );
01649     }
01650 
01651 
01652 void Workspace::sendPingToWindow( Window window, Time timestamp )
01653     {
01654     rootInfo->sendPing( window, timestamp );
01655     }
01656 
01657 void Workspace::sendTakeActivity( Client* c, Time timestamp, long flags )
01658     {
01659     rootInfo->takeActivity( c->window(), timestamp, flags );
01660     pending_take_activity = c;
01661     }
01662 
01663 
01667 void Workspace::slotGrabWindow()
01668     {
01669     if ( active_client ) 
01670         {
01671         QPixmap snapshot = QPixmap::grabWindow( active_client->frameId() );
01672 
01673     //No XShape - no work.
01674         if( Shape::available()) 
01675             {
01676         //As the first step, get the mask from XShape.
01677             int count, order;
01678             XRectangle* rects = XShapeGetRectangles( qt_xdisplay(), active_client->frameId(),
01679                                                      ShapeBounding, &count, &order);
01680         //The ShapeBounding region is the outermost shape of the window;
01681         //ShapeBounding - ShapeClipping is defined to be the border.
01682         //Since the border area is part of the window, we use bounding
01683         // to limit our work region
01684             if (rects) 
01685                 {
01686         //Create a QRegion from the rectangles describing the bounding mask.
01687                 QRegion contents;
01688                 for (int pos = 0; pos < count; pos++)
01689                     contents += QRegion(rects[pos].x, rects[pos].y,
01690                                         rects[pos].width, rects[pos].height);
01691                 XFree(rects);
01692 
01693         //Create the bounding box.
01694                 QRegion bbox(0, 0, snapshot.width(), snapshot.height());
01695 
01696         //Get the masked away area.
01697                 QRegion maskedAway = bbox - contents;
01698                 QMemArray<QRect> maskedAwayRects = maskedAway.rects();
01699 
01700         //Construct a bitmap mask from the rectangles
01701                 QBitmap mask( snapshot.width(), snapshot.height());
01702                 QPainter p(&mask);
01703                 p.fillRect(0, 0, mask.width(), mask.height(), Qt::color1);
01704                 for (uint pos = 0; pos < maskedAwayRects.count(); pos++)
01705                     p.fillRect(maskedAwayRects[pos], Qt::color0);
01706                 p.end();
01707                 snapshot.setMask(mask);
01708                 }
01709             }
01710 
01711         QClipboard *cb = QApplication::clipboard();
01712         cb->setPixmap( snapshot );
01713         }
01714     else
01715         slotGrabDesktop();
01716     }
01717 
01721 void Workspace::slotGrabDesktop()
01722     {
01723     QPixmap p = QPixmap::grabWindow( qt_xrootwin() );
01724     QClipboard *cb = QApplication::clipboard();
01725     cb->setPixmap( p );
01726     }
01727 
01728 
01732 void Workspace::slotMouseEmulation()
01733     {
01734 
01735     if ( mouse_emulation ) 
01736         {
01737         XUngrabKeyboard(qt_xdisplay(), qt_x_time);
01738         mouse_emulation = FALSE;
01739         return;
01740         }
01741 
01742     if ( XGrabKeyboard(qt_xdisplay(),
01743                        root, FALSE,
01744                        GrabModeAsync, GrabModeAsync,
01745                        qt_x_time) == GrabSuccess ) 
01746         {
01747         mouse_emulation = TRUE;
01748         mouse_emulation_state = 0;
01749         mouse_emulation_window = 0;
01750         }
01751     }
01752 
01759 WId Workspace::getMouseEmulationWindow()
01760     {
01761     Window root;
01762     Window child = qt_xrootwin();
01763     int root_x, root_y, lx, ly;
01764     uint state;
01765     Window w;
01766     Client * c = 0;
01767     do 
01768         {
01769         w = child;
01770         if (!c)
01771             c = findClient( FrameIdMatchPredicate( w ));
01772         XQueryPointer( qt_xdisplay(), w, &root, &child,
01773                        &root_x, &root_y, &lx, &ly, &state );
01774         } while  ( child != None && child != w );
01775 
01776     if ( c && !c->isActive() )
01777         activateClient( c );
01778     return (WId) w;
01779     }
01780 
01784 unsigned int Workspace::sendFakedMouseEvent( QPoint pos, WId w, MouseEmulation type, int button, unsigned int state )
01785     {
01786     if ( !w )
01787         return state;
01788     QWidget* widget = QWidget::find( w );
01789     if ( (!widget ||  widget->inherits("QToolButton") ) && !findClient( WindowMatchPredicate( w )) ) 
01790         {
01791         int x, y;
01792         Window xw;
01793         XTranslateCoordinates( qt_xdisplay(), qt_xrootwin(), w, pos.x(), pos.y(), &x, &y, &xw );
01794         if ( type == EmuMove ) 
01795             { // motion notify events
01796             XEvent e;
01797             e.type = MotionNotify;
01798             e.xmotion.window = w;
01799             e.xmotion.root = qt_xrootwin();
01800             e.xmotion.subwindow = w;
01801             e.xmotion.time = qt_x_time;
01802             e.xmotion.x = x;
01803             e.xmotion.y = y;
01804             e.xmotion.x_root = pos.x();
01805             e.xmotion.y_root = pos.y();
01806             e.xmotion.state = state;
01807             e.xmotion.is_hint = NotifyNormal;
01808             XSendEvent( qt_xdisplay(), w, TRUE, ButtonMotionMask, &e );
01809             }
01810         else 
01811             {
01812             XEvent e;
01813             e.type = type == EmuRelease ? ButtonRelease : ButtonPress;
01814             e.xbutton.window = w;
01815             e.xbutton.root = qt_xrootwin();
01816             e.xbutton.subwindow = w;
01817             e.xbutton.time = qt_x_time;
01818             e.xbutton.x = x;
01819             e.xbutton.y = y;
01820             e.xbutton.x_root = pos.x();
01821             e.xbutton.y_root = pos.y();
01822             e.xbutton.state = state;
01823             e.xbutton.button = button;
01824             XSendEvent( qt_xdisplay(), w, TRUE, ButtonPressMask, &e );
01825 
01826             if ( type == EmuPress ) 
01827                 {
01828                 switch ( button ) 
01829                     {
01830                     case 2:
01831                         state |= Button2Mask;
01832                         break;
01833                     case 3:
01834                         state |= Button3Mask;
01835                         break;
01836                     default: // 1
01837                         state |= Button1Mask;
01838                         break;
01839                     }
01840                 }
01841             else 
01842                 {
01843                 switch ( button ) 
01844                     {
01845                     case 2:
01846                         state &= ~Button2Mask;
01847                         break;
01848                     case 3:
01849                         state &= ~Button3Mask;
01850                         break;
01851                     default: // 1
01852                         state &= ~Button1Mask;
01853                         break;
01854                     }
01855                 }
01856             }
01857         }
01858     return state;
01859     }
01860 
01864 bool Workspace::keyPressMouseEmulation( XKeyEvent& ev )
01865     {
01866     if ( root != qt_xrootwin() )
01867         return FALSE;
01868     int kc = XKeycodeToKeysym(qt_xdisplay(), ev.keycode, 0);
01869     int km = ev.state & (ControlMask | Mod1Mask | ShiftMask);
01870 
01871     bool is_control = km & ControlMask;
01872     bool is_alt = km & Mod1Mask;
01873     bool is_shift = km & ShiftMask;
01874     int delta = is_control?1:is_alt?32:8;
01875     QPoint pos = QCursor::pos();
01876 
01877     switch ( kc ) 
01878         {
01879         case XK_Left:
01880         case XK_KP_Left:
01881             pos.rx() -= delta;
01882             break;
01883         case XK_Right:
01884         case XK_KP_Right:
01885             pos.rx() += delta;
01886             break;
01887         case XK_Up:
01888         case XK_KP_Up:
01889             pos.ry() -= delta;
01890             break;
01891         case XK_Down:
01892         case XK_KP_Down:
01893             pos.ry() += delta;
01894             break;
01895         case XK_F1:
01896             if ( !mouse_emulation_state )
01897                 mouse_emulation_window = getMouseEmulationWindow();
01898             if ( (mouse_emulation_state & Button1Mask) == 0 )
01899                 mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuPress, Button1, mouse_emulation_state );
01900             if ( !is_shift )
01901                 mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button1, mouse_emulation_state );
01902             break;
01903         case XK_F2:
01904             if ( !mouse_emulation_state )
01905                 mouse_emulation_window = getMouseEmulationWindow();
01906             if ( (mouse_emulation_state & Button2Mask) == 0 )
01907                 mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuPress, Button2, mouse_emulation_state );
01908             if ( !is_shift )
01909                 mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button2, mouse_emulation_state );
01910             break;
01911         case XK_F3:
01912             if ( !mouse_emulation_state )
01913                 mouse_emulation_window = getMouseEmulationWindow();
01914             if ( (mouse_emulation_state & Button3Mask) == 0 )
01915                 mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuPress, Button3, mouse_emulation_state );
01916             if ( !is_shift )
01917                 mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button3, mouse_emulation_state );
01918             break;
01919         case XK_Return:
01920         case XK_space:
01921         case XK_KP_Enter:
01922         case XK_KP_Space: 
01923             {
01924             if ( !mouse_emulation_state ) 
01925                 {
01926             // nothing was pressed, fake a LMB click
01927                 mouse_emulation_window = getMouseEmulationWindow();
01928                 mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuPress, Button1, mouse_emulation_state );
01929                 mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button1, mouse_emulation_state );
01930                 }
01931             else 
01932                 { // release all
01933                 if ( mouse_emulation_state & Button1Mask )
01934                     mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button1, mouse_emulation_state );
01935                 if ( mouse_emulation_state & Button2Mask )
01936                     mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button2, mouse_emulation_state );
01937                 if ( mouse_emulation_state & Button3Mask )
01938                     mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuRelease, Button3, mouse_emulation_state );
01939                 }
01940             }
01941     // fall through
01942         case XK_Escape:
01943             XUngrabKeyboard(qt_xdisplay(), qt_x_time);
01944             mouse_emulation = FALSE;
01945             return TRUE;
01946         default:
01947             return FALSE;
01948         }
01949 
01950     QCursor::setPos( pos );
01951     if ( mouse_emulation_state )
01952         mouse_emulation_state = sendFakedMouseEvent( pos, mouse_emulation_window, EmuMove, 0,  mouse_emulation_state );
01953     return TRUE;
01954 
01955     }
01956 
01962 QWidget* Workspace::desktopWidget()
01963     {
01964     return desktop_widget;
01965     }
01966 
01967 //Delayed focus functions
01968 void Workspace::delayFocus()
01969     {
01970     requestFocus( delayfocus_client );
01971     cancelDelayFocus();
01972     }
01973     
01974 void Workspace::requestDelayFocus( Client* c )
01975     {
01976     delayfocus_client = c;
01977     delete delayFocusTimer;
01978     delayFocusTimer = new QTimer( this );
01979     connect( delayFocusTimer, SIGNAL( timeout() ), this, SLOT( delayFocus() ) );
01980     delayFocusTimer->start( options->delayFocusInterval, TRUE  );
01981     }
01982     
01983 void Workspace::cancelDelayFocus()
01984     {
01985     delete delayFocusTimer;
01986     delayFocusTimer = 0;
01987     }
01988 
01989 // Electric Borders
01990 //========================================================================//
01991 // Electric Border Window management. Electric borders allow a user
01992 // to change the virtual desktop by moving the mouse pointer to the
01993 // borders. Technically this is done with input only windows. Since
01994 // electric borders can be switched on and off, we have these two
01995 // functions to create and destroy them.
01996 void Workspace::checkElectricBorders( bool force )
01997     {
01998     if( force )
01999         destroyBorderWindows();
02000     
02001     electric_current_border = 0;
02002 
02003     QRect r = QApplication::desktop()->geometry();
02004     electricTop = r.top();
02005     electricBottom = r.bottom();
02006     electricLeft = r.left();
02007     electricRight = r.right();
02008 
02009     if (options->electricBorders() == Options::ElectricAlways)
02010        createBorderWindows();
02011     else
02012        destroyBorderWindows();
02013     }
02014 
02015 void Workspace::createBorderWindows()
02016     {
02017     if ( electric_have_borders )
02018         return;
02019 
02020     electric_have_borders = true;
02021 
02022     QRect r = QApplication::desktop()->geometry();
02023     XSetWindowAttributes attributes;
02024     unsigned long valuemask;
02025     attributes.override_redirect = True;
02026     attributes.event_mask =  ( EnterWindowMask | LeaveWindowMask );
02027     valuemask=  (CWOverrideRedirect | CWEventMask | CWCursor );
02028     attributes.cursor = XCreateFontCursor(qt_xdisplay(),
02029                                           XC_sb_up_arrow);
02030     electric_top_border = XCreateWindow (qt_xdisplay(), qt_xrootwin(),
02031                                 0,0,
02032                                 r.width(),1,
02033                                 0,
02034                                 CopyFromParent, InputOnly,
02035                                 CopyFromParent,
02036                                 valuemask, &attributes);
02037     XMapWindow(qt_xdisplay(), electric_top_border);
02038 
02039     attributes.cursor = XCreateFontCursor(qt_xdisplay(),
02040                                           XC_sb_down_arrow);
02041     electric_bottom_border = XCreateWindow (qt_xdisplay(), qt_xrootwin(),
02042                                    0,r.height()-1,
02043                                    r.width(),1,
02044                                    0,
02045                                    CopyFromParent, InputOnly,
02046                                    CopyFromParent,
02047                                    valuemask, &attributes);
02048     XMapWindow(qt_xdisplay(), electric_bottom_border);
02049 
02050     attributes.cursor = XCreateFontCursor(qt_xdisplay(),
02051                                           XC_sb_left_arrow);
02052     electric_left_border = XCreateWindow (qt_xdisplay(), qt_xrootwin(),
02053                                  0,0,
02054                                  1,r.height(),
02055                                  0,
02056                                  CopyFromParent, InputOnly,
02057                                  CopyFromParent,
02058                                  valuemask, &attributes);
02059     XMapWindow(qt_xdisplay(), electric_left_border);
02060 
02061     attributes.cursor = XCreateFontCursor(qt_xdisplay(),
02062                                           XC_sb_right_arrow);
02063     electric_right_border = XCreateWindow (qt_xdisplay(), qt_xrootwin(),
02064                                   r.width()-1,0,
02065                                   1,r.height(),
02066                                   0,
02067                                   CopyFromParent, InputOnly,
02068                                   CopyFromParent,
02069                                   valuemask, &attributes);
02070     XMapWindow(qt_xdisplay(),  electric_right_border);
02071     // Set XdndAware on the windows, so that DND enter events are received (#86998)
02072     Atom version = 4; // XDND version
02073     XChangeProperty( qt_xdisplay(), electric_top_border, atoms->xdnd_aware, XA_ATOM,
02074         32, PropModeReplace, ( unsigned char* )&version, 1 );
02075     XChangeProperty( qt_xdisplay(), electric_bottom_border, atoms->xdnd_aware, XA_ATOM,
02076         32, PropModeReplace, ( unsigned char* )&version, 1 );
02077     XChangeProperty( qt_xdisplay(), electric_left_border, atoms->xdnd_aware, XA_ATOM,
02078         32, PropModeReplace, ( unsigned char* )&version, 1 );
02079     XChangeProperty( qt_xdisplay(), electric_right_border, atoms->xdnd_aware, XA_ATOM,
02080         32, PropModeReplace, ( unsigned char* )&version, 1 );
02081     }
02082 
02083 
02084 // Electric Border Window management. Electric borders allow a user
02085 // to change the virtual desktop by moving the mouse pointer to the
02086 // borders. Technically this is done with input only windows. Since
02087 // electric borders can be switched on and off, we have these two
02088 // functions to create and destroy them.
02089 void Workspace::destroyBorderWindows()
02090     {
02091     if( !electric_have_borders)
02092       return;
02093 
02094     electric_have_borders = false;
02095 
02096     if(electric_top_border)
02097       XDestroyWindow(qt_xdisplay(),electric_top_border);
02098     if(electric_bottom_border)
02099       XDestroyWindow(qt_xdisplay(),electric_bottom_border);
02100     if(electric_left_border)
02101       XDestroyWindow(qt_xdisplay(),electric_left_border);
02102     if(electric_right_border)
02103       XDestroyWindow(qt_xdisplay(),electric_right_border);
02104 
02105     electric_top_border    = None;
02106     electric_bottom_border = None;
02107     electric_left_border   = None;
02108     electric_right_border  = None;
02109     }
02110 
02111 void Workspace::clientMoved(const QPoint &pos, Time now)
02112     {
02113     if (options->electricBorders() == Options::ElectricDisabled)
02114        return;
02115 
02116     if ((pos.x() != electricLeft) &&
02117         (pos.x() != electricRight) &&
02118         (pos.y() != electricTop) &&
02119         (pos.y() != electricBottom))
02120        return;
02121 
02122     Time treshold_set = options->electricBorderDelay(); // set timeout
02123     Time treshold_reset = 250; // reset timeout
02124     int distance_reset = 30; // Mouse should not move more than this many pixels
02125 
02126     int border = 0;
02127     if (pos.x() == electricLeft)
02128        border = 1;
02129     else if (pos.x() == electricRight)
02130        border = 2;
02131     else if (pos.y() == electricTop)
02132        border = 3;
02133     else if (pos.y() == electricBottom)
02134        border = 4;
02135 
02136     if ((electric_current_border == border) &&
02137         (timestampDiff(electric_time_last, now) < treshold_reset) &&
02138         ((pos-electric_push_point).manhattanLength() < distance_reset))
02139         {
02140         electric_time_last = now;
02141 
02142         if (timestampDiff(electric_time_first, now) > treshold_set)
02143             {
02144             electric_current_border = 0;
02145 
02146             QRect r = QApplication::desktop()->geometry();
02147             int offset;
02148 
02149             int desk_before = currentDesktop();
02150             switch(border)
02151                 {
02152                 case 1:
02153                  slotSwitchDesktopLeft();
02154                  if (currentDesktop() != desk_before) 
02155                     {
02156                     offset = r.width() / 5;
02157                     QCursor::setPos(r.width() - offset, pos.y());
02158                     }
02159                 break;
02160 
02161                case 2:
02162                 slotSwitchDesktopRight();
02163                 if (currentDesktop() != desk_before) 
02164                     {
02165                     offset = r.width() / 5;
02166                     QCursor::setPos(offset, pos.y());
02167                     }
02168                 break;
02169 
02170                case 3:
02171                 slotSwitchDesktopUp();
02172                 if (currentDesktop() != desk_before) 
02173                     {
02174                     offset = r.height() / 5;
02175                     QCursor::setPos(pos.x(), r.height() - offset);
02176                     }
02177                 break;
02178 
02179                case 4:
02180                 slotSwitchDesktopDown();
02181                 if (currentDesktop() != desk_before) 
02182                     {
02183                     offset = r.height() / 5;
02184                     QCursor::setPos(pos.x(), offset);
02185                     }
02186                 break;
02187                 }
02188             return;
02189             }
02190         }
02191     else 
02192         {
02193         electric_current_border = border;
02194         electric_time_first = now;
02195         electric_time_last = now;
02196         electric_push_point = pos;
02197         }
02198 
02199     int mouse_warp = 1;
02200 
02201   // reset the pointer to find out wether the user is really pushing
02202     switch( border)
02203         {
02204         case 1: QCursor::setPos(pos.x()+mouse_warp, pos.y()); break;
02205         case 2: QCursor::setPos(pos.x()-mouse_warp, pos.y()); break;
02206         case 3: QCursor::setPos(pos.x(), pos.y()+mouse_warp); break;
02207         case 4: QCursor::setPos(pos.x(), pos.y()-mouse_warp); break;
02208         }
02209     }
02210 
02211 // this function is called when the user entered an electric border
02212 // with the mouse. It may switch to another virtual desktop
02213 bool Workspace::electricBorder(XEvent *e)
02214     {
02215     if( !electric_have_borders )
02216         return false;
02217     if( e->type == EnterNotify )
02218         {
02219         if( e->xcrossing.window == electric_top_border ||
02220             e->xcrossing.window == electric_left_border ||
02221             e->xcrossing.window == electric_bottom_border ||
02222             e->xcrossing.window == electric_right_border)
02223             // the user entered an electric border
02224             {
02225             clientMoved( QPoint( e->xcrossing.x_root, e->xcrossing.y_root ), e->xcrossing.time );
02226             return true;
02227             }
02228         }
02229     if( e->type == ClientMessage )
02230         {
02231         if( e->xclient.message_type == atoms->xdnd_position
02232             && ( e->xclient.window == electric_top_border
02233                  || e->xclient.window == electric_bottom_border
02234                  || e->xclient.window == electric_left_border
02235                  || e->xclient.window == electric_right_border ))
02236             {
02237             updateXTime();
02238             clientMoved( QPoint( e->xclient.data.l[2]>>16, e->xclient.data.l[2]&0xffff), qt_x_time );
02239             return true;
02240             }
02241         }
02242     return false;
02243     }
02244 
02245 // electric borders (input only windows) have to be always on the
02246 // top. For that reason kwm calls this function always after some
02247 // windows have been raised.
02248 void Workspace::raiseElectricBorders()
02249     {
02250 
02251     if(electric_have_borders)
02252         {
02253         XRaiseWindow(qt_xdisplay(), electric_top_border);
02254         XRaiseWindow(qt_xdisplay(), electric_left_border);
02255         XRaiseWindow(qt_xdisplay(), electric_bottom_border);
02256         XRaiseWindow(qt_xdisplay(), electric_right_border);
02257         }
02258     }
02259 
02260 void Workspace::addTopMenu( Client* c )
02261     {
02262     assert( c->isTopMenu());
02263     assert( !topmenus.contains( c ));
02264     topmenus.append( c );
02265     if( managingTopMenus())
02266         {
02267         int minsize = c->minSize().height();
02268         if( minsize > topMenuHeight())
02269             {
02270             topmenu_height = minsize;
02271             updateTopMenuGeometry();
02272             }
02273         updateTopMenuGeometry( c );
02274         updateCurrentTopMenu();
02275         }
02276 //        kdDebug() << "NEW TOPMENU:" << c << endl;
02277     }
02278 
02279 void Workspace::removeTopMenu( Client* c )
02280     {
02281 //    if( c->isTopMenu())
02282 //        kdDebug() << "REMOVE TOPMENU:" << c << endl;
02283     assert( c->isTopMenu());
02284     assert( topmenus.contains( c ));
02285     topmenus.remove( c );
02286     updateCurrentTopMenu();
02287     // TODO reduce topMenuHeight() if possible?
02288     }
02289 
02290 void Workspace::lostTopMenuSelection()
02291     {
02292 //    kdDebug() << "lost TopMenu selection" << endl;
02293     // make sure this signal is always set when not owning the selection
02294     disconnect( topmenu_watcher, SIGNAL( lostOwner()), this, SLOT( lostTopMenuOwner()));
02295     connect( topmenu_watcher, SIGNAL( lostOwner()), this, SLOT( lostTopMenuOwner()));
02296     if( !managing_topmenus )
02297         return;
02298     connect( topmenu_watcher, SIGNAL( lostOwner()), this, SLOT( lostTopMenuOwner()));
02299     disconnect( topmenu_selection, SIGNAL( lostOwnership()), this, SLOT( lostTopMenuSelection()));
02300     managing_topmenus = false;
02301     delete topmenu_space;
02302     topmenu_space = NULL;
02303     updateClientArea();
02304     for( ClientList::ConstIterator it = topmenus.begin();
02305          it != topmenus.end();
02306          ++it )
02307         (*it)->checkWorkspacePosition();
02308     }
02309 
02310 void Workspace::lostTopMenuOwner()
02311     {
02312     if( !options->topMenuEnabled())
02313         return;
02314 //    kdDebug() << "TopMenu selection lost owner" << endl;
02315     if( !topmenu_selection->claim( false ))
02316         {
02317 //        kdDebug() << "Failed to claim TopMenu selection" << endl;
02318         return;
02319         }
02320 //    kdDebug() << "claimed TopMenu selection" << endl;
02321     setupTopMenuHandling();
02322     }
02323 
02324 void Workspace::setupTopMenuHandling()
02325     {
02326     if( managing_topmenus )
02327         return;
02328     connect( topmenu_selection, SIGNAL( lostOwnership()), this, SLOT( lostTopMenuSelection()));
02329     disconnect( topmenu_watcher, SIGNAL( lostOwner()), this, SLOT( lostTopMenuOwner()));
02330     managing_topmenus = true;
02331     topmenu_space = new QWidget;
02332     Window stack[ 2 ];
02333     stack[ 0 ] = supportWindow->winId();
02334     stack[ 1 ] = topmenu_space->winId();
02335     XRestackWindows(qt_xdisplay(), stack, 2);
02336     updateTopMenuGeometry();
02337     topmenu_space->show();
02338     updateClientArea();
02339     updateCurrentTopMenu();
02340     }
02341 
02342 int Workspace::topMenuHeight() const
02343     {
02344     if( topmenu_height == 0 )
02345         { // simply create a dummy menubar and use its preffered height as the menu height
02346         KMenuBar tmpmenu;
02347         tmpmenu.insertItem( "dummy" );
02348         topmenu_height = tmpmenu.sizeHint().height();
02349         }
02350     return topmenu_height;
02351     }
02352 
02353 KDecoration* Workspace::createDecoration( KDecorationBridge* bridge )
02354     {
02355     return mgr->createDecoration( bridge );
02356     }
02357 
02358 QString Workspace::desktopName( int desk ) const
02359     {
02360     return QString::fromUtf8( rootInfo->desktopName( desk ) );
02361     }
02362 
02363 bool Workspace::checkStartupNotification( Window w, KStartupInfoId& id, KStartupInfoData& data )
02364     {
02365     return startup->checkStartup( w, id, data ) == KStartupInfo::Match;
02366     }
02367 
02372 void Workspace::focusToNull()
02373     {
02374     XSetInputFocus(qt_xdisplay(), null_focus_window, RevertToPointerRoot, qt_x_time );
02375     }
02376 
02377 void Workspace::helperDialog( const QString& message, const Client* c )
02378     {
02379     QStringList args;
02380     QString type;
02381     if( message == "noborderaltf3" )
02382         {
02383         QString shortcut = QString( "%1 (%2)" ).arg( keys->label( "Window Operations Menu" ))
02384             .arg( keys->shortcut( "Window Operations Menu" ).seq( 0 ).toString());
02385         args << "--msgbox" <<
02386               i18n( "You have selected to show a window without its border.\n"
02387                     "Without the border, you will not be able to enable the border "
02388                     "again using the mouse: use the window operations menu instead, "
02389                     "activated using the %1 keyboard shortcut." )
02390                 .arg( shortcut );
02391         type = "altf3warning";
02392         }
02393     else if( message == "fullscreenaltf3" )
02394         {
02395         QString shortcut = QString( "%1 (%2)" ).arg( keys->label( "Window Operations Menu" ))
02396             .arg( keys->shortcut( "Window Operations Menu" ).seq( 0 ).toString());
02397         args << "--msgbox" <<
02398               i18n( "You have selected to show a window in fullscreen mode.\n"
02399                     "If the application itself does not have an option to turn the fullscreen "
02400                     "mode off you will not be able to disable it "
02401                     "again using the mouse: use the window operations menu instead, "
02402                     "activated using the %1 keyboard shortcut." )
02403                 .arg( shortcut );
02404         type = "altf3warning";
02405         }
02406     else
02407         assert( false );
02408     KProcess proc;
02409     proc << "kdialog" << args;
02410     if( !type.isEmpty())
02411         {
02412         KConfig cfg( "kwin_dialogsrc" );
02413         cfg.setGroup( "Notification Messages" ); // this depends on KMessageBox
02414         if( !cfg.readBoolEntry( type, true )) // has don't show again checked
02415             return;                           // save launching kdialog
02416         proc << "--dontagain" << "kwin_dialogsrc:" + type;
02417         }
02418     if( c != NULL )
02419         proc << "--embed" << QString::number( c->window());
02420     proc.start( KProcess::DontCare );
02421     }
02422 
02423 
02424 // kompmgr stuff
02425     
02426 void Workspace::startKompmgr()
02427 {
02428     if (!kompmgr || kompmgr->isRunning())
02429         return;
02430     if (!kompmgr->start(KProcess::OwnGroup, KProcess::Stderr))
02431         {
02432         options->useTranslucency = FALSE;
02433         KProcess proc;
02434         proc << "kdialog" << "--error"
02435             << i18n("The Composite Manager could not be started.\\nMake sure you have \"kompmgr\" in a $PATH directory.")
02436             << "--title" << "Composite Manager Failure";
02437         proc.start(KProcess::DontCare);
02438         }
02439     else
02440         {
02441         delete kompmgr_selection;
02442         char selection_name[ 100 ];
02443         sprintf( selection_name, "_NET_WM_CM_S%d", DefaultScreen( qt_xdisplay()));
02444         kompmgr_selection = new KSelectionOwner( selection_name );
02445         connect( kompmgr_selection, SIGNAL( lostOwnership()), SLOT( stopKompmgr()));
02446         kompmgr_selection->claim( true );
02447         connect(kompmgr, SIGNAL(processExited(KProcess*)), SLOT(restartKompmgr()));
02448         options->useTranslucency = TRUE;
02449         allowKompmgrRestart = FALSE;
02450         QTimer::singleShot( 60000, this, SLOT(unblockKompmgrRestart()) );
02451         QByteArray ba;
02452         QDataStream arg(ba, IO_WriteOnly);
02453         arg << "";
02454         kapp->dcopClient()->emitDCOPSignal("default", "kompmgrStarted()", ba);
02455         }
02456         if (popup){ delete popup; popup = 0L; } // to add/remove opacity slider
02457 }
02458 
02459 void Workspace::stopKompmgr()
02460 {
02461     if (!kompmgr  || !kompmgr->isRunning())
02462         return;
02463     delete kompmgr_selection;
02464     kompmgr_selection = NULL;
02465     kompmgr->disconnect(this, SLOT(restartKompmgr()));
02466     options->useTranslucency = FALSE;
02467     if (popup){ delete popup; popup = 0L; } // to add/remove opacity slider
02468     kompmgr->kill();
02469     QByteArray ba;
02470     QDataStream arg(ba, IO_WriteOnly);
02471     arg << "";
02472     kapp->dcopClient()->emitDCOPSignal("default", "kompmgrStopped()", ba);
02473 }
02474 
02475 bool Workspace::kompmgrIsRunning()
02476 {
02477    return kompmgr && kompmgr->isRunning();
02478 }
02479 
02480 void Workspace::unblockKompmgrRestart()
02481 {
02482     allowKompmgrRestart = TRUE;
02483 }
02484 
02485 void Workspace::restartKompmgr()
02486 // this is for inernal purpose (crashhandling) only, usually you want to use workspace->stopKompmgr(); QTimer::singleShot(200, workspace, SLOT(startKompmgr()));
02487 {
02488     if (!allowKompmgrRestart) // uh-ohh
02489         {
02490         delete kompmgr_selection;
02491         kompmgr_selection = NULL;
02492         options->useTranslucency = FALSE;
02493         KProcess proc;
02494         proc << "kdialog" << "--error"
02495             << i18n( "The Composite Manager crashed twice within a minute and is therefore disabled for this session.")
02496             << "--title" << i18n("Composite Manager Failure");
02497         proc.start(KProcess::DontCare);
02498         return;
02499         }
02500     if (!kompmgr)
02501         return;
02502 // this should be useless, i keep it for maybe future need
02503 //     if (!kcompmgr)
02504 //         {
02505 //         kompmgr = new KProcess;
02506 //         kompmgr->clearArguments();
02507 //         *kompmgr << "kompmgr";
02508 //         }
02509 // -------------------
02510     if (!kompmgr->start(KProcess::NotifyOnExit, KProcess::Stderr))
02511         {
02512         delete kompmgr_selection;
02513         kompmgr_selection = NULL;
02514         options->useTranslucency = FALSE;
02515         KProcess proc;
02516         proc << "kdialog" << "--error"
02517             << i18n("The Composite Manager could not be started.\\nMake sure you have \"kompmgr\" in a $PATH directory.")
02518             << "--title" << i18n("Composite Manager Failure");
02519         proc.start(KProcess::DontCare);
02520         }
02521     else
02522         {
02523         allowKompmgrRestart = FALSE;
02524         QTimer::singleShot( 60000, this, SLOT(unblockKompmgrRestart()) );
02525         }
02526 }
02527 
02528 void Workspace::handleKompmgrOutput( KProcess* , char *buffer, int buflen)
02529 {
02530     QString message;
02531     QString output = QString::fromLocal8Bit( buffer, buflen );
02532     if (output.contains("Started",false))
02533         ; // don't do anything, just pass to the connection release
02534     else if (output.contains("Can't open display",false))
02535         message = i18n("<qt><b>kompmgr failed to open the display</b><br>There is probably an invalid display entry in your ~/.xcompmgrrc.</qt>");
02536     else if (output.contains("No render extension",false))
02537         message = i18n("<qt><b>kompmgr cannot find the Xrender extension</b><br>You are using either an outdated or a crippled version of XOrg.<br>Get XOrg &ge; 6.8 from www.freedesktop.org.<br></qt>");
02538     else if (output.contains("No composite extension",false))
02539         message = i18n("<qt><b>Composite extension not found</b><br>You <i>must</i> use XOrg &ge; 6.8 for translucency and shadows to work.<br>Additionally, you need to add a new section to your X config file:<br>"
02540         "<i>Section \"Extensions\"<br>"
02541         "Option \"Composite\" \"Enable\"<br>"
02542         "EndSection</i></qt>");
02543     else if (output.contains("No damage extension",false))
02544         message = i18n("<qt><b>Damage extension not found</b><br>You <i>must</i> use XOrg &ge; 6.8 for translucency and shadows to work.</qt>");
02545     else if (output.contains("No XFixes extension",false))
02546         message = i18n("<qt><b>XFixes extension not found</b><br>You <i>must</i> use XOrg &ge; 6.8 for translucency and shadows to work.</qt>");
02547     else return; //skip others
02548     // kompmgr startup failed or succeeded, release connection
02549     kompmgr->closeStderr();
02550     disconnect(kompmgr, SIGNAL(receivedStderr(KProcess*, char*, int)), this, SLOT(handleKompmgrOutput(KProcess*, char*, int)));
02551     if( !message.isEmpty())
02552         {
02553         KProcess proc;
02554         proc << "kdialog" << "--error"
02555             << message
02556             << "--title" << i18n("Composite Manager Failure");
02557         proc.start(KProcess::DontCare);
02558         }
02559 }
02560     
02561         
02562 void Workspace::setOpacity(unsigned long winId, unsigned int opacityPercent)
02563 {
02564     if (opacityPercent > 100) opacityPercent = 100;
02565     for( ClientList::ConstIterator it = stackingOrder().begin(); it != stackingOrder().end(); it++ )
02566         if (winId == (*it)->window())
02567             {
02568             (*it)->setOpacity(opacityPercent < 100, (unsigned int)((opacityPercent/100.0)*0xFFFFFFFF));
02569             return;
02570             }
02571 }
02572 
02573 void Workspace::setShadowSize(unsigned long winId, unsigned int shadowSizePercent)
02574 {
02575     //this is open to the user by dcop - to avoid stupid trials, we limit the max shadow size to 400%
02576     if (shadowSizePercent > 400) shadowSizePercent = 400;
02577     for( ClientList::ConstIterator it = stackingOrder().begin(); it != stackingOrder().end(); it++ )
02578         if (winId == (*it)->window())
02579             {
02580             (*it)->setShadowSize(shadowSizePercent);
02581             return;
02582             }
02583 }
02584 
02585 void Workspace::setUnshadowed(unsigned long winId)
02586 {
02587     for( ClientList::ConstIterator it = stackingOrder().begin(); it != stackingOrder().end(); it++ )
02588         if (winId == (*it)->window())
02589             {
02590             (*it)->setShadowSize(0);
02591             return;
02592             }
02593 }
02594 
02595 void Workspace::setShowingDesktop( bool showing )
02596     {
02597     rootInfo->setShowingDesktop( showing );
02598     showing_desktop = showing;
02599     ++block_showing_desktop;
02600     if( showing_desktop )
02601         {
02602         showing_desktop_clients.clear();
02603         ++block_focus;
02604         ClientList cls = stackingOrder();
02605         // find them first, then minimize, otherwise transients may get minimized with the window
02606         // they're transient for
02607         for( ClientList::ConstIterator it = cls.begin();
02608              it != cls.end();
02609              ++it )
02610             {
02611             if( (*it)->isOnCurrentDesktop() && (*it)->isShown( true ) && !(*it)->isSpecialWindow())
02612                 showing_desktop_clients.prepend( *it ); // topmost first to reduce flicker
02613             }
02614         for( ClientList::ConstIterator it = showing_desktop_clients.begin();
02615              it != showing_desktop_clients.end();
02616              ++it )
02617             (*it)->minimize(true);
02618         --block_focus;
02619         if( Client* desk = findDesktop( true, currentDesktop()))
02620             requestFocus( desk );
02621         }
02622     else
02623         {
02624         for( ClientList::ConstIterator it = showing_desktop_clients.begin();
02625              it != showing_desktop_clients.end();
02626              ++it )
02627             (*it)->unminimize(true);
02628         if( showing_desktop_clients.count() > 0 )
02629             requestFocus( showing_desktop_clients.first());
02630         showing_desktop_clients.clear();
02631         }
02632     --block_showing_desktop;
02633     }
02634 
02635 // Following Kicker's behavior:
02636 // Changing a virtual desktop resets the state and shows the windows again.
02637 // Unminimizing a window resets the state but keeps the windows hidden (except
02638 // the one that was unminimized).
02639 // A new window resets the state and shows the windows again, with the new window
02640 // being active. Due to popular demand (#67406) by people who apparently
02641 // don't see a difference between "show desktop" and "minimize all", this is not
02642 // true if "showDesktopIsMinimizeAll" is set in kwinrc. In such case showing
02643 // a new window resets the state but doesn't show windows.
02644 void Workspace::resetShowingDesktop( bool keep_hidden )
02645     {
02646     if( block_showing_desktop > 0 )
02647         return;
02648     rootInfo->setShowingDesktop( false );
02649     showing_desktop = false;
02650     ++block_showing_desktop;
02651     if( !keep_hidden )
02652         {
02653         for( ClientList::ConstIterator it = showing_desktop_clients.begin();
02654              it != showing_desktop_clients.end();
02655              ++it )
02656             (*it)->unminimize(true);
02657         }
02658     showing_desktop_clients.clear();
02659     --block_showing_desktop;
02660     }
02661 
02662 // Activating/deactivating this feature works like this:
02663 // When nothing is active, and the shortcut is pressed, global shortcuts are disabled
02664 //   (using global_shortcuts_disabled)
02665 // When a window that has disabling forced is activated, global shortcuts are disabled.
02666 //   (using global_shortcuts_disabled_for_client)
02667 // When a shortcut is pressed and global shortcuts are disabled (either by a shortcut
02668 // or for a client), they are enabled again.
02669 void Workspace::slotDisableGlobalShortcuts()
02670     {
02671     if( global_shortcuts_disabled || global_shortcuts_disabled_for_client )
02672         disableGlobalShortcuts( false );
02673     else
02674         disableGlobalShortcuts( true );
02675     }
02676 
02677 static bool pending_dfc = false;
02678 
02679 void Workspace::disableGlobalShortcutsForClient( bool disable )
02680     {
02681     if( global_shortcuts_disabled_for_client == disable )
02682         return;
02683     if( !global_shortcuts_disabled )
02684         {
02685         if( disable )
02686             pending_dfc = true;
02687         KIPC::sendMessageAll( KIPC::BlockShortcuts, disable );
02688         // kwin will get the kipc message too
02689         }
02690     }
02691 
02692 void Workspace::disableGlobalShortcuts( bool disable )
02693     {
02694     KIPC::sendMessageAll( KIPC::BlockShortcuts, disable );
02695     // kwin will get the kipc message too
02696     }
02697 
02698 void Workspace::kipcMessage( int id, int data )
02699     {
02700     if( id != KIPC::BlockShortcuts )
02701         return;
02702     if( pending_dfc && data )
02703         {
02704         global_shortcuts_disabled_for_client = true;
02705         pending_dfc = false;
02706         }
02707     else
02708         {
02709         global_shortcuts_disabled = data;
02710         global_shortcuts_disabled_for_client = false;
02711         }
02712     // update also Alt+LMB actions etc.
02713     for( ClientList::ConstIterator it = clients.begin();
02714          it != clients.end();
02715          ++it )
02716         (*it)->updateMouseGrab();
02717     }
02718 
02719 } // namespace
02720 
02721 #include "workspace.moc"
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