diff options
Diffstat (limited to 'src/komposetaskmanager.cpp')
| -rw-r--r-- | src/komposetaskmanager.cpp | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/src/komposetaskmanager.cpp b/src/komposetaskmanager.cpp new file mode 100644 index 0000000..d33e1ae --- /dev/null +++ b/src/komposetaskmanager.cpp @@ -0,0 +1,387 @@ +/*************************************************************************** + * Copyright (C) 2004 by Hans Oischinger * + * hans.oischinger@kde-mail.net * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#include "komposetaskmanager.h" + +#include "komposelayout.h" +#include "komposedesktopwidget.h" +#include "komposesettings.h" +#include "komposetaskwidget.h" +#include "komposeglobal.h" +#include "komposetask.h" +#include "komposeviewmanager.h" + +#include <qtimer.h> +#include <qimage.h> +#include <qpixmap.h> +#include <qwidget.h> + +#include <kapplication.h> +#include <kwinmodule.h> +#include <netwm.h> +#include <kwin.h> +#include <kapplication.h> +#include <kdebug.h> + +#ifdef COMPOSITE +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xatom.h> +#include <X11/extensions/Xcomposite.h> +#include <X11/extensions/Xdamage.h> +#include <X11/extensions/Xrender.h> +#endif + +static KomposeTaskManager* taskManagerInstance = 0; + + +/** + * Taskmanager is a singleton + */ +KomposeTaskManager* KomposeTaskManager::instance() +{ + if ( !taskManagerInstance ) + { + kdDebug() << "KomposeTaskManager::instance() - Creating Singleton instance" << endl; + taskManagerInstance = new KomposeTaskManager(); + } + return taskManagerInstance; +} + + +KomposeTaskManager::KomposeTaskManager() + : QObject() +{ + taskManagerInstance = this; + kwin_module = new KWinModule(); + numDesks = KWin::numberOfDesktops(); + + callCompositeRedirect(); + + // Listeners for KWinmodule signals + connect( kwin_module, SIGNAL(windowAdded(WId)), this, SLOT(slotWindowAdded(WId)) ); + connect( kwin_module, SIGNAL(windowRemoved(WId)), this, SLOT(slotWindowRemoved(WId)) ); + connect( kwin_module, SIGNAL(numberOfDesktopsChanged(int)), this, SLOT(slotDesktopCountChanged(int)) ); + connect( kwin_module, SIGNAL(currentDesktopChanged(int)), this, SLOT(slotCurrentDesktopChanged(int)) ); + + connect( KomposeSettings::instance(), SIGNAL(settingsChanged()), this, SLOT(slotStartWindowListeners()) ); + connect( KomposeSettings::instance(), SIGNAL(settingsChanged()), this, SLOT(callCompositeRedirect()) ); + + // register existing windows + const QValueList<WId> windows = kwin_module->windows(); + for (QValueList<WId>::ConstIterator it = windows.begin(); it != windows.end(); ++it ) + slotWindowAdded(*it); + + connect( kwin_module, SIGNAL(activeWindowChanged(WId)), this, SLOT(slotTaskActivated(WId)) ); + slotStartWindowListeners(); +} + +KomposeTaskManager::~KomposeTaskManager() +{ + delete kwin_module; +} + +/** + * Redirect or unredirect all root windows to offscreen buffers + */ +void KomposeTaskManager::callCompositeRedirect() +{ +#ifdef COMPOSITE + if ( KomposeGlobal::instance()->hasXcomposite() ) + { + Display *dpy = QPaintDevice::x11AppDisplay(); + if ( KomposeSettings::instance()->getUseComposite() ) + { + // Redirect + for ( int i = 0; i < ScreenCount( dpy ); i++ ) + XCompositeRedirectSubwindows( dpy, RootWindow( dpy, i ), CompositeRedirectAutomatic ); + } + else if ( !KomposeSettings::instance()->getUseComposite() ) + { + // Unredirect + for ( int i = 0; i < ScreenCount( dpy ); i++ ) + XCompositeUnredirectSubwindows( dpy, RootWindow( dpy, i ), CompositeRedirectAutomatic ); + } + } +#endif +} + +/** + * Helper function that finds a KomposeTask object by it's window id + * @param w WindowID of the Task + * @return Corresponding KomposeTask object + */ +KomposeTask* KomposeTaskManager::findTask(WId w, bool wmFrameIds ) +{ + for (KomposeTask* t = tasklist.first(); t != 0; t = tasklist.next()) + if ((!wmFrameIds && t->window() == w) || (wmFrameIds && t->wmFrame() == w) ) + return t; + return 0; +} + +void KomposeTaskManager::slotStartWindowListeners() +{ + disconnect( kwin_module, SIGNAL(windowChanged( WId, unsigned int )), this, + SLOT(slotWindowChanged( WId, unsigned int )) ); + connect( kwin_module, SIGNAL(windowChanged( WId, unsigned int )), this, + SLOT(slotWindowChanged( WId, unsigned int )) ); +} + + +void KomposeTaskManager::slotWindowChanged( WId w, unsigned int dirty) +{ + if( dirty & NET::WMState ) + { + NETWinInfo info ( qt_xdisplay(), w, qt_xrootwin(), NET::WMState ); + if ( (info.state() & NET::SkipTaskbar) != 0 ) + { + slotWindowRemoved( w ); + return; + } + else + { + if( !findTask( w )) + slotWindowAdded( w ); + } + } + + // check if any state we are interested in is marked dirty + if(!(dirty & (NET::WMVisibleName|NET::WMVisibleIconName|NET::WMName|NET::WMState|NET::WMIcon|NET::XAWMState|NET::WMDesktop)) ) + return; + + // find task + KomposeTask* t = findTask( w ); + if (!t) return; + + int oldTaskDesktop = t->onDesktop(); + // TODO: Instead of one refresh() method we could implement specific method for names and geometry, etc... + // checked like this: if(dirty & (NET::WMDesktop|NET::WMState|NET::XAWMState)) + t->refresh(); + + // Finally check if the window has been moved to a different virtual desktop + if( (dirty & NET::WMDesktop ) && ( oldTaskDesktop != t->onDesktop() ) ) + emit taskDesktopChanged( t, oldTaskDesktop, t->onDesktop() ); +} + + +void KomposeTaskManager::slotWindowRemoved(WId w ) +{ + // find task + KomposeTask* task = findTask( w ); + if (!task) return; + + //kdDebug() << "KomposeTaskManager::slotWindowRemoved(WId w ) - Removing task %s", task->visibleNameWithState()); + tasklist.remove( task ); + delete task; +} + +void KomposeTaskManager::slotWindowAdded(WId w ) +{ + // ignore myself + if ( QWidget::find(w) != 0 ) + return; + // if ( KomposeViewManager::instance()->hasActiveView() && w == KomposeViewManager::instance()->getViewWidget()->winId() ) + // { + // return; + // } + + KWin::WindowInfo info = KWin::windowInfo(w); + + // ignore NET::Tool and other special window types + NET::WindowType mytype = info.windowType(NET::NormalMask | NET::DesktopMask | NET::DockMask | + NET::ToolbarMask | NET::MenuMask | NET::DialogMask | NET::OverrideMask + | NET::TopMenuMask | NET::UtilityMask | NET::SplashMask); + if (mytype != NET::Normal && mytype != NET::Override && mytype != NET::Unknown && mytype != NET::Dialog) + return; + + // ignore windows that want to be ignored by the taskbar + if ((info.state() & NET::SkipTaskbar) != 0) + { + return; + } + + if ( !info.valid() ) + return; + + kdDebug() << "KomposeTaskManager::slotWindowAdded(WId " << w <<" ) - Adding KomposeTask" << endl; + KomposeTask* t = new KomposeTask(w, kwin_module, this); + tasklist.append(t); + + emit newTask( t ); +} + + +/** + * Called when Komposé requires screenshots of all tasks + */ +void KomposeTaskManager::slotUpdateScreenshots( bool switchDesktops ) +{ + kdDebug() << "KomposeTaskManager::slotUpdateScreenshots()" << endl; + + QPtrListIterator<KomposeTask> it( tasklist ); + KomposeTask *task; + + // Iterate through tasks sorted by desktops (this minimizes desktop switching if necessary) + for ( int desk = -1; desk <= numDesks; ++desk ) + { + // Desk == 0 should not be possible, however -1 means on all desks + if (desk==0 || ( !switchDesktops && desk != KomposeViewManager::instance()->getDesktopBeforeSnaps()+1 ) ) + continue; + + it.toFirst(); + while ( (task = it.current()) != 0 ) + { + ++it; + if ( task->onDesktop() == desk ) + task->slotUpdateScreenshot(); + } + } +} + + +/** + * simulates a window activated event for the currently active window (no forcing of screenshots) + */ +void KomposeTaskManager::simulatePasvScreenshotEvent() +{ + kdDebug() << "KomposeTaskManager::simulatePasvScreenshotEvent()" << endl; + slotTaskActivated( kwin_module->activeWindow() ); +} + +/** + * Signals the task object that it's window has been activated + */ +void KomposeTaskManager::slotTaskActivated(WId winId) +{ + kdDebug() << "KomposeTaskManager::slotTaskActivated ( " << winId << " )" << endl; + QPtrListIterator<KomposeTask> it( tasklist ); + KomposeTask *task; + while ( (task = it.current()) != 0 ) + { + ++it; + if ( winId == task->window() ) + { + task->slotActivated(); + return; + } + } +} + + +void KomposeTaskManager::slotDesktopCountChanged(int d) +{ + numDesks = d; +} + +bool KomposeTaskManager::isOnTop(const KomposeTask* task) +{ + if(!task) return false; + + for (QValueList<WId>::ConstIterator it = kwin_module->stackingOrder().fromLast(); + it != kwin_module->stackingOrder().end(); --it ) + { + for (KomposeTask* t = tasklist.first(); t != 0; t = tasklist.next() ) + { + if ( (*it) == t->window() ) + { + if ( t == task ) + return true; + if ( !t->isIconified() && (t->isAlwaysOnTop() == task->isAlwaysOnTop()) ) + return false; + break; + } + } + } + return false; +} + +QString KomposeTaskManager::getDesktopName(int desk) const +{ + return kwin_module->desktopName(desk); +} + + +/** + * The kapp x11EventFilter method redirect to this method + * @param event + * @return + */ +bool KomposeTaskManager::processX11Event( XEvent *event ) +{ +#ifdef COMPOSITE + if ( KomposeGlobal::instance()->hasXcomposite() && KomposeSettings::instance()->getUseComposite() ) + { + if ( event->type == ConfigureNotify ) + { + XConfigureEvent *e = &event->xconfigure; + + KomposeTask* t = findTask( e->window, true ); + if (!t) + return false; + t->slotX11ConfigureNotify(); + return true; + } + else if ( event->type == KomposeGlobal::instance()->getDamageEvent() + XDamageNotify ) + { + XDamageNotifyEvent *e = reinterpret_cast<XDamageNotifyEvent*>( event ); + // e->drawable is the window ID of the damaged window + // e->geometry is the geometry of the damaged window + // e->area is the bounding rect for the damaged area + // e->damage is the damage handle returned by XDamageCreate() + + // Subtract all the damage, repairing the window. + XDamageSubtract( QPaintDevice::x11AppDisplay(), e->damage, None, None ); + if ( !KomposeViewManager::instance()->hasActiveView() ) + return true; + + // FIXME: too many damage events are called. block findTask here... + // FIXME: Don't try XDamage with KAsteroids! Do something to avoid 100% cpu usage + KomposeTask* t = findTask( e->drawable ); + if (!t) + return false; + t->slotX11DamageNotify(); + return true; + } + } +#endif + return false; +} + +void KomposeTaskManager::slotCurrentDesktopChanged(int d) +{ +#ifdef COMPOSITE + if ( KomposeGlobal::instance()->hasXcomposite() && KomposeSettings::instance()->getUseComposite() ) + { + // Strangely a ConfigureNotify is only sent when I click on a window on the new desktop + // and not when I cahnge the desktop, although the windows get mapped at this point. + // Is this a X bug? However the following hack helps: + // Do as if we received a ConfigureNotify event to update all backing pixmaps + for (KomposeTask* t = tasklist.first(); t != 0; t = tasklist.next()) + if ( t->onDesktop() == d ) + t->slotX11ConfigureNotify(); + } +#endif +} + +int KomposeTaskManager::getCurrentDesktopNum() +{ + return kwin_module->currentDesktop(); +} + +#include "komposetaskmanager.moc" |