kwin/manage.cpp
Luboš Luňák 571ba9cf9e Basic compositing support. It doesn't actually do anything
besides drawing what should be drawn anyway, and there are
still some things missing like stacking order for override
redirect windows, but KWin is basically a compositing manager now.


svn path=/branches/work/kwin_composite/; revision=558168
2006-07-04 20:02:07 +00:00

593 lines
22 KiB
C++

/*****************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
You can Freely distribute this program under the GNU General Public
License. See the file "COPYING" for the exact licensing terms.
******************************************************************/
/*
This file contains things relevant to handling incoming events.
*/
#include "client.h"
#include <kstartupinfo.h>
#include <kglobal.h>
#include <X11/extensions/shape.h>
#include "notifications.h"
#include <QX11Info>
#include "rules.h"
#include "group.h"
namespace KWinInternal
{
/*!
Manages the clients. This means handling the very first maprequest:
reparenting, initial geometry, initial state, placement, etc.
Returns false if KWin is not going to manage this window.
*/
bool Client::manage( Window w, bool isMapped )
{
StackingUpdatesBlocker stacking_blocker( workspace());
grabXServer();
XWindowAttributes attr;
if( !XGetWindowAttributes(display(), w, &attr))
{
ungrabXServer();
return false;
}
// from this place on, manage() mustn't return false
postpone_geometry_updates = 1;
pending_geometry_update = true; // force update when finishing with geometry changes
embedClient( w, attr );
setupCompositing();
// SELI order all these things in some sane manner
bool init_minimize = false;
XWMHints * hints = XGetWMHints(display(), w );
if (hints && (hints->flags & StateHint) && hints->initial_state == IconicState)
init_minimize = true;
if (hints)
XFree(hints);
if( isMapped )
init_minimize = false; // if it's already mapped, ignore hint
unsigned long properties[ 2 ];
properties[ WinInfo::PROTOCOLS ] =
NET::WMDesktop |
NET::WMState |
NET::WMWindowType |
NET::WMStrut |
NET::WMName |
NET::WMIconGeometry |
NET::WMIcon |
NET::WMPid |
NET::WMIconName |
0;
properties[ WinInfo::PROTOCOLS2 ] =
NET::WM2UserTime |
NET::WM2StartupId |
NET::WM2ExtendedStrut |
0;
info = new WinInfo( this, display(), client, rootWindow(), properties, 2 );
cmap = attr.colormap;
XClassHint classHint;
if ( XGetClassHint( display(), client, &classHint ) )
{
// Qt3.2 and older had this all lowercase, Qt3.3 capitalized resource class
// force lowercase, so that workarounds listing resource classes still work
resource_name = QByteArray( classHint.res_name ).toLower();
resource_class = QByteArray( classHint.res_class ).toLower();
XFree( classHint.res_name );
XFree( classHint.res_class );
}
ignore_focus_stealing = options->checkIgnoreFocusStealing( this ); // TODO change to rules
window_role = staticWindowRole( w );
getWmClientLeader();
getWmClientMachine();
// first only read the caption text, so that setupWindowRules() can use it for matching,
// and only then really set the caption using setCaption(), which checks for duplicates etc.
// and also relies on rules already existing
cap_normal = readName();
setupWindowRules( false );
setCaption( cap_normal, true );
detectNoBorder();
detectShapable();
fetchIconicName();
getWMHints(); // needs to be done before readTransient() because of reading the group
modal = ( info->state() & NET::Modal ) != 0; // needs to be valid before handling groups
readTransient();
getIcons();
getWindowProtocols();
getWmNormalHints(); // get xSizeHint
getMotifHints();
// TODO try to obey all state information from info->state()
original_skip_taskbar = skip_taskbar = ( info->state() & NET::SkipTaskbar) != 0;
skip_pager = ( info->state() & NET::SkipPager) != 0;
KStartupInfoId asn_id;
KStartupInfoData asn_data;
bool asn_valid = workspace()->checkStartupNotification( window(), asn_id, asn_data );
workspace()->updateClientLayer( this );
SessionInfo* session = workspace()->takeSessionInfo( this );
if ( session )
{
if ( session->minimized )
init_minimize = true;
if( session->userNoBorder )
setUserNoBorder( true );
}
setShortcut( rules()->checkShortcut( session ? session->shortcut : QString(), true ));
init_minimize = rules()->checkMinimize( init_minimize, !isMapped );
if( rules()->checkNoBorder( false, !isMapped ))
setUserNoBorder( true );
checkAndSetInitialRuledOpacity();
// initial desktop placement
if ( session )
{
desk = session->desktop;
if( session->onAllDesktops )
desk = NET::OnAllDesktops;
}
else
{
// if this window is transient, ensure that it is opened on the
// same window as its parent. this is necessary when an application
// starts up on a different desktop than is currently displayed
if( isTransient())
{
ClientList mainclients = mainClients();
bool on_current = false;
Client* maincl = NULL;
// this is slightly duplicated from Placement::placeOnMainWindow()
for( ClientList::ConstIterator it = mainclients.begin();
it != mainclients.end();
++it )
{
if( (*it)->isSpecialWindow())
continue; // don't consider toolbars etc when placing
maincl = *it;
if( (*it)->isOnCurrentDesktop())
on_current = true;
}
if( on_current )
desk = workspace()->currentDesktop();
else if( maincl != NULL )
desk = maincl->desktop();
}
if ( info->desktop() )
desk = info->desktop(); // window had the initial desktop property, force it
if( desktop() == 0 && asn_valid && asn_data.desktop() != 0 )
desk = asn_data.desktop();
}
if ( desk == 0 ) // assume window wants to be visible on the current desktop
desk = workspace()->currentDesktop();
desk = rules()->checkDesktop( desk, !isMapped );
if( desk != NET::OnAllDesktops ) // do range check
desk = qMax( 1, qMin( workspace()->numberOfDesktops(), desk ));
info->setDesktop( desk );
workspace()->updateOnAllDesktopsOfTransients( this ); // SELI
// onAllDesktopsChange(); decoration doesn't exist here yet
QRect geom( attr.x, attr.y, attr.width, attr.height );
bool placementDone = false;
if ( session )
geom = session->geometry;
QRect area;
bool partial_keep_in_area = isMapped || session;
if( isMapped || session )
area = workspace()->clientArea( FullArea, geom.center(), desktop());
else if( options->xineramaPlacementEnabled )
area = workspace()->clientArea( PlacementArea, QCursor::pos(), desktop());
else
area = workspace()->clientArea( PlacementArea, geom.center(), desktop());
if( int type = checkFullScreenHack( geom ))
{
fullscreen_mode = FullScreenHack;
if( rules()->checkStrictGeometry( false ))
{
geom = type == 2 // 1 - it's xinerama-aware fullscreen hack, 2 - it's full area
? workspace()->clientArea( FullArea, geom.center(), desktop())
: workspace()->clientArea( ScreenArea, geom.center(), desktop());
}
else
geom = workspace()->clientArea( FullScreenArea, geom.center(), desktop());
placementDone = true;
}
if ( isDesktop() )
{
// desktops are treated slightly special
geom = workspace()->clientArea( FullArea, geom.center(), desktop());
placementDone = true;
}
bool usePosition = false;
if ( isMapped || session || placementDone )
placementDone = true; // use geometry
else if( isTransient() && !isUtility() && !isDialog() && !isSplash())
usePosition = true;
else if( isTransient() && !hasNETSupport())
usePosition = true;
else if( isDialog() && hasNETSupport())
// if the dialog is actually non-NETWM transient window, don't try to apply placement to it,
// it breaks with too many things (xmms, display)
{
if( mainClients().count() >= 1 )
{
#if 1
// TODO #78082 - Ok, it seems there are after all some cases when an application has a good
// reason to specify a position for its dialog. Too bad other WMs have never bothered
// with placement for dialogs, so apps always specify positions for their dialogs,
// including such silly positions like always centered on the screen or under mouse.
// Using ignoring requested position in window-specific settings helps, but at least
// for Qt apps this should work better.
usePosition = true;
#else
; // force using placement policy
#endif
}
else
usePosition = true;
}
else if( isSplash())
; // force using placement policy
else
usePosition = true;
if( !rules()->checkIgnoreGeometry( !usePosition ))
{
bool ignorePPosition = ( options->ignorePositionClasses.contains(QString::fromLatin1(resourceClass())));
if ( ( (xSizeHint.flags & PPosition) && !ignorePPosition ) ||
(xSizeHint.flags & USPosition) )
{
placementDone = true;
// disobey xinerama placement option for now (#70943)
area = workspace()->clientArea( PlacementArea, geom.center(), desktop());
}
}
if( true ) // size is always obeyed for now, only with constraints applied
if ( (xSizeHint.flags & USSize) || (xSizeHint.flags & PSize) )
{
// keep in mind that we now actually have a size :-)
}
if (xSizeHint.flags & PMaxSize)
geom.setSize( geom.size().boundedTo(
rules()->checkMaxSize( QSize(xSizeHint.max_width, xSizeHint.max_height ) ) ) );
if (xSizeHint.flags & PMinSize)
geom.setSize( geom.size().expandedTo(
rules()->checkMinSize( QSize(xSizeHint.min_width, xSizeHint.min_height ) ) ) );
if( isMovable())
{
if( geom.x() > area.right() || geom.y() > area.bottom())
placementDone = false; // weird, do not trust.
}
if ( placementDone )
move( geom.x(), geom.y() ); // before gravitating
updateDecoration( false ); // also gravitates
// TODO is CentralGravity right here, when resizing is done after gravitating?
plainResize( rules()->checkSize( sizeForClientSize( geom.size()), !isMapped ));
QPoint forced_pos = rules()->checkPosition( invalidPoint, !isMapped );
if( forced_pos != invalidPoint )
{
move( forced_pos );
placementDone = true;
// don't keep inside workarea if the window has specially configured position
partial_keep_in_area = true;
area = workspace()->clientArea( FullArea, geom.center(), desktop());
}
if( !placementDone )
{ // placement needs to be after setting size
workspace()->place( this, area );
placementDone = true;
}
if(( !isSpecialWindow() || isToolbar()) && isMovable())
keepInArea( area, partial_keep_in_area );
if( Extensions::shapeAvailable())
XShapeSelectInput( display(), window(), ShapeNotifyMask );
if ( (is_shape = hasShape( window())) )
updateShape();
// else
// setShapable(false);
//CT extra check for stupid jdk 1.3.1. But should make sense in general
// if client has initial state set to Iconic and is transient with a parent
// window that is not Iconic, set init_state to Normal
if( init_minimize && isTransient())
{
ClientList mainclients = mainClients();
for( ClientList::ConstIterator it = mainclients.begin();
it != mainclients.end();
++it )
if( (*it)->isShown( true ))
init_minimize = false; // SELI even e.g. for NET::Utility?
}
if( init_minimize )
minimize( true ); // no animation
// SELI this seems to be mainly for kstart and ksystraycmd
// probably should be replaced by something better
bool doNotShow = false;
if ( workspace()->isNotManaged( caption() ) )
doNotShow = true;
// other settings from the previous session
if ( session )
{
// session restored windows are not considered to be new windows WRT rules,
// i.e. obey only forcing rules
setKeepAbove( session->keepAbove );
setKeepBelow( session->keepBelow );
setSkipTaskbar( session->skipTaskbar, true );
setSkipPager( session->skipPager );
setShade( session->shaded ? ShadeNormal : ShadeNone );
if( session->maximized != MaximizeRestore )
{
maximize( (MaximizeMode) session->maximized );
geom_restore = session->restore;
}
if( session->fullscreen == FullScreenHack )
; // nothing, this should be already set again above
else if( session->fullscreen != FullScreenNone )
{
setFullScreen( true, false );
geom_fs_restore = session->fsrestore;
}
}
else
{
geom_restore = geometry(); // remember restore geometry
if ( isMaximizable()
&& ( width() >= area.width() || height() >= area.height() ) )
{
// window is too large for the screen, maximize in the
// directions necessary
if ( width() >= area.width() && height() >= area.height() )
{
maximize( Client::MaximizeFull );
geom_restore = QRect(); // use placement when unmaximizing
}
else if ( width() >= area.width() )
{
maximize( Client::MaximizeHorizontal );
geom_restore = QRect(); // use placement when unmaximizing
geom_restore.setY( y()); // but only for horizontal direction
geom_restore.setHeight( height());
}
else if ( height() >= area.height() )
{
maximize( Client::MaximizeVertical );
geom_restore = QRect(); // use placement when unmaximizing
geom_restore.setX( x()); // but only for vertical direction
geom_restore.setWidth( width());
}
}
// window may want to be maximized
// done after checking that the window isn't larger than the workarea, so that
// the restore geometry from the checks above takes precedence, and window
// isn't restored larger than the workarea
MaximizeMode maxmode = static_cast< MaximizeMode >
((( info->state() & NET::MaxVert ) ? MaximizeVertical : 0 )
| (( info->state() & NET::MaxHoriz ) ? MaximizeHorizontal : 0 ));
MaximizeMode forced_maxmode = rules()->checkMaximize( maxmode, !isMapped );
// either hints were set to maximize, or is forced to maximize,
// or is forced to non-maximize and hints were set to maximize
if( forced_maxmode != MaximizeRestore || maxmode != MaximizeRestore )
maximize( forced_maxmode );
// read other initial states
setShade( rules()->checkShade( info->state() & NET::Shaded ? ShadeNormal : ShadeNone, !isMapped ));
setKeepAbove( rules()->checkKeepAbove( info->state() & NET::KeepAbove, !isMapped ));
setKeepBelow( rules()->checkKeepBelow( info->state() & NET::KeepBelow, !isMapped ));
setSkipTaskbar( rules()->checkSkipTaskbar( info->state() & NET::SkipTaskbar, !isMapped ), true );
setSkipPager( rules()->checkSkipPager( info->state() & NET::SkipPager, !isMapped ));
if( info->state() & NET::DemandsAttention )
demandAttention();
if( info->state() & NET::Modal )
setModal( true );
if( fullscreen_mode != FullScreenHack && isFullScreenable())
setFullScreen( rules()->checkFullScreen( info->state() & NET::FullScreen, !isMapped ), false );
}
updateAllowedActions( true );
// set initial user time directly
user_time = readUserTimeMapTimestamp( asn_valid ? &asn_id : NULL, asn_valid ? &asn_data : NULL, session );
group()->updateUserTime( user_time ); // and do what Client::updateUserTime() does
if( isTopMenu()) // they're shown in Workspace::addClient() if their mainwindow
hideClient( true ); // is the active one
// this should avoid flicker, because real restacking is done
// only after manage() finishes because of blocking, but the window is shown sooner
XLowerWindow( display(), frameId());
if( session && session->stackingOrder != -1 )
{
sm_stacking_order = session->stackingOrder;
workspace()->restoreSessionStackingOrder( this );
}
if( isShown( true ) && !doNotShow )
{
if( isDialog())
Notify::raise( Notify::TransNew );
if( isNormalWindow())
Notify::raise( Notify::New );
bool allow;
if( session )
allow = session->active
&& ( !workspace()->wasUserInteraction()
|| workspace()->activeClient() == NULL || workspace()->activeClient()->isDesktop());
else
allow = workspace()->allowClientActivation( this, userTime(), false );
// if session saving, force showing new windows (i.e. "save file?" dialogs etc.)
// also force if activation is allowed
if( !isOnCurrentDesktop() && !isMapped && !session && ( allow || workspace()->sessionSaving()))
workspace()->setCurrentDesktop( desktop());
bool belongs_to_desktop = false;
for( ClientList::ConstIterator it = group()->members().begin();
it != group()->members().end();
++it )
if( (*it)->isDesktop())
{
belongs_to_desktop = true;
break;
}
if( !belongs_to_desktop && workspace()->showingDesktop())
workspace()->resetShowingDesktop( options->showDesktopIsMinimizeAll );
if( isOnCurrentDesktop() && !isMapped && !allow && (!session || session->stackingOrder < 0 ))
workspace()->restackClientUnderActive( this );
updateVisibility();
if( !isMapped )
{
if( allow && isOnCurrentDesktop())
{
if( !isSpecialWindow())
if ( options->focusPolicyIsReasonable() && wantsTabFocus() )
workspace()->requestFocus( this );
}
else
{
if( !session && !isSpecialWindow())
demandAttention();
}
}
}
else if( !doNotShow ) // if( !isShown( true ) && !doNotShow )
{
updateVisibility();
}
else // doNotShow
{ // SELI HACK !!!
hideClient( true );
setMappingState( IconicState );
}
assert( mappingState() != WithdrawnState );
if( user_time == CurrentTime || user_time == -1U ) // no known user time, set something old
{
user_time = xTime() - 1000000;
if( user_time == CurrentTime || user_time == -1U ) // let's be paranoid
user_time = xTime() - 1000000 + 10;
}
updateWorkareaDiffs();
// sendSyntheticConfigureNotify(); done when setting mapping state
delete session;
ungrabXServer();
client_rules.discardTemporary();
applyWindowRules(); // just in case
workspace()->discardUsedWindowRules( this, false ); // remove ApplyNow rules
updateWindowRules(); // was blocked while !isManaged()
// TODO there's a small problem here - isManaged() depends on the mapping state,
// but this client is not yet in Workspace's client list at this point, will
// be only done in addClient()
return true;
}
// called only from manage()
void Client::embedClient( Window w, const XWindowAttributes &attr )
{
assert( client == None );
assert( frameId() == None );
assert( wrapper == None );
client = w;
// we don't want the window to be destroyed when we are destroyed
XAddToSaveSet( display(), client );
XSelectInput( display(), client, NoEventMask );
XUnmapWindow( display(), client );
XWindowChanges wc; // set the border width to 0
wc.border_width = 0; // TODO possibly save this, and also use it for initial configuring of the window
XConfigureWindow( display(), client, CWBorderWidth, &wc );
XSetWindowAttributes swa;
swa.colormap = attr.colormap;
swa.background_pixmap = None;
swa.border_pixel = 0;
Window frame = XCreateWindow( display(), rootWindow(), 0, 0, 1, 1, 0,
attr.depth, InputOutput, attr.visual,
CWColormap | CWBackPixmap | CWBorderPixel, &swa );
setHandle( frame );
wrapper = XCreateWindow( display(), frame, 0, 0, 1, 1, 0,
attr.depth, InputOutput, attr.visual,
CWColormap | CWBackPixmap | CWBorderPixel, &swa );
XDefineCursor( display(), frame, QCursor( Qt::ArrowCursor ).handle());
// some apps are stupid and don't define their own cursor - set the arrow one for them
XDefineCursor( display(), wrapper, QCursor( Qt::ArrowCursor ).handle());
XReparentWindow( display(), client, wrapper, 0, 0 );
XSelectInput( display(), frame,
KeyPressMask | KeyReleaseMask |
ButtonPressMask | ButtonReleaseMask |
KeymapStateMask |
ButtonMotionMask |
PointerMotionMask |
EnterWindowMask | LeaveWindowMask |
FocusChangeMask |
ExposureMask |
PropertyChangeMask |
StructureNotifyMask | SubstructureRedirectMask |
VisibilityChangeMask );
XSelectInput( display(), wrapper, ClientWinMask | SubstructureNotifyMask );
XSelectInput( display(), client,
FocusChangeMask |
PropertyChangeMask |
ColormapChangeMask |
EnterWindowMask | LeaveWindowMask |
KeyPressMask | KeyReleaseMask
);
updateMouseGrab();
}
} // namespace