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kwin/events.cpp
Luboš Luňák 96e1fdab6c Use KNotify for notifications about windows demanding attention. 
People who use hidden Kicker, have their taskbar configured to show
only windows on the current desktop or similar now may configure
it so that windows that didn't get focus because of focus stealing
prevention now can not only have their taskbar entry marked
but there can be e.g. also a passive popup.


svn path=/trunk/KDE/kdebase/kwin/; revision=419727
2005-05-30 13:31:33 +00:00

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/*****************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
You can Freely distribute this program under the GNU General Public
License. See the file "COPYING" for the exact licensing terms.
******************************************************************/
/*
This file contains things relevant to handling incoming events.
*/
#include "client.h"
#include "workspace.h"
#include "atoms.h"
#include "tabbox.h"
#include "group.h"
#include "rules.h"
#include <qwhatsthis.h>
#include <kkeynative.h>
#include <qapplication.h>
#include <X11/extensions/shape.h>
#include <X11/Xatom.h>
extern Time qt_x_time;
extern Atom qt_window_role;
namespace KWinInternal
{
// ****************************************
// WinInfo
// ****************************************
WinInfo::WinInfo( Client * c, Display * display, Window window,
Window rwin, const unsigned long pr[], int pr_size )
: NETWinInfo( display, window, rwin, pr, pr_size, NET::WindowManager ), m_client( c )
{
}
void WinInfo::changeDesktop(int desktop)
{
m_client->workspace()->sendClientToDesktop( m_client, desktop, true );
}
void WinInfo::changeState( unsigned long state, unsigned long mask )
{
mask &= ~NET::Sticky; // KWin doesn't support large desktops, ignore
mask &= ~NET::Hidden; // clients are not allowed to change this directly
state &= mask; // for safety, clear all other bits
if(( mask & NET::FullScreen ) != 0 && ( state & NET::FullScreen ) == 0 )
m_client->setFullScreen( false, false );
if ( (mask & NET::Max) == NET::Max )
m_client->setMaximize( state & NET::MaxVert, state & NET::MaxHoriz );
else if ( mask & NET::MaxVert )
m_client->setMaximize( state & NET::MaxVert, m_client->maximizeMode() & Client::MaximizeHorizontal );
else if ( mask & NET::MaxHoriz )
m_client->setMaximize( m_client->maximizeMode() & Client::MaximizeVertical, state & NET::MaxHoriz );
if ( mask & NET::Shaded )
m_client->setShade( state & NET::Shaded ? ShadeNormal : ShadeNone );
if ( mask & NET::KeepAbove)
m_client->setKeepAbove( (state & NET::KeepAbove) != 0 );
if ( mask & NET::KeepBelow)
m_client->setKeepBelow( (state & NET::KeepBelow) != 0 );
if( mask & NET::SkipTaskbar )
m_client->setSkipTaskbar( ( state & NET::SkipTaskbar ) != 0, true );
if( mask & NET::SkipPager )
m_client->setSkipPager( ( state & NET::SkipPager ) != 0 );
if( mask & NET::DemandsAttention )
m_client->demandAttention(( state & NET::DemandsAttention ) != 0 );
if( mask & NET::Modal )
m_client->setModal( ( state & NET::Modal ) != 0 );
// unsetting fullscreen first, setting it last (because e.g. maximize works only for !isFullScreen() )
if(( mask & NET::FullScreen ) != 0 && ( state & NET::FullScreen ) != 0 )
m_client->setFullScreen( true, false );
}
// ****************************************
// RootInfo
// ****************************************
RootInfo::RootInfo( Workspace* ws, Display *dpy, Window w, const char *name, unsigned long pr[], int pr_num, int scr )
: NETRootInfo4( dpy, w, name, pr, pr_num, scr )
{
workspace = ws;
}
void RootInfo::changeNumberOfDesktops(int n)
{
workspace->setNumberOfDesktops( n );
}
void RootInfo::changeCurrentDesktop(int d)
{
workspace->setCurrentDesktop( d );
}
void RootInfo::changeActiveWindow( Window w, NET::RequestSource src, Time timestamp, Window active_window )
{
if( Client* c = workspace->findClient( WindowMatchPredicate( w )))
{
if( timestamp == CurrentTime )
timestamp = c->userTime();
if( src != NET::FromApplication && src != FromTool )
src = NET::FromTool;
if( src == NET::FromTool )
workspace->activateClient( c, true ); // force
else // NET::FromApplication
{
Client* c2;
if( workspace->allowClientActivation( c, timestamp ))
workspace->activateClient( c );
// if activation of the requestor's window would be allowed, allow activation too
else if( active_window != None
&& ( c2 = workspace->findClient( WindowMatchPredicate( active_window ))) != NULL
&& workspace->allowClientActivation( c2,
timestampCompare( timestamp, c2->userTime() > 0 ? timestamp : c2->userTime())))
workspace->activateClient( c );
else
c->demandAttention();
}
}
}
void RootInfo::restackWindow( Window w, RequestSource src, Window above, int detail, Time timestamp )
{
if( Client* c = workspace->findClient( WindowMatchPredicate( w )))
{
if( timestamp == CurrentTime )
timestamp = c->userTime();
if( src != NET::FromApplication && src != FromTool )
src = NET::FromTool;
c->restackWindow( above, detail, src, timestamp, true );
}
}
void RootInfo::gotTakeActivity( Window w, Time timestamp, long flags )
{
if( Client* c = workspace->findClient( WindowMatchPredicate( w )))
workspace->handleTakeActivity( c, timestamp, flags );
}
void RootInfo::closeWindow(Window w)
{
Client* c = workspace->findClient( WindowMatchPredicate( w ));
if ( c )
c->closeWindow();
}
void RootInfo::moveResize(Window w, int x_root, int y_root, unsigned long direction)
{
Client* c = workspace->findClient( WindowMatchPredicate( w ));
if ( c )
{
updateXTime(); // otherwise grabbing may have old timestamp - this message should include timestamp
c->NETMoveResize( x_root, y_root, (Direction)direction);
}
}
void RootInfo::moveResizeWindow(Window w, int flags, int x, int y, int width, int height )
{
Client* c = workspace->findClient( WindowMatchPredicate( w ));
if ( c )
c->NETMoveResizeWindow( flags, x, y, width, height );
}
void RootInfo::gotPing( Window w, Time timestamp )
{
if( Client* c = workspace->findClient( WindowMatchPredicate( w )))
c->gotPing( timestamp );
}
void RootInfo::changeShowingDesktop( bool showing )
{
workspace->setShowingDesktop( showing );
}
// ****************************************
// Workspace
// ****************************************
/*!
Handles workspace specific XEvents
*/
bool Workspace::workspaceEvent( XEvent * e )
{
if ( mouse_emulation && (e->type == ButtonPress || e->type == ButtonRelease ) )
{
mouse_emulation = FALSE;
XUngrabKeyboard( qt_xdisplay(), qt_x_time );
}
if ( e->type == PropertyNotify || e->type == ClientMessage )
{
if ( netCheck( e ) )
return TRUE;
}
// events that should be handled before Clients can get them
switch (e->type)
{
case ButtonPress:
case ButtonRelease:
was_user_interaction = true;
// fallthrough
case MotionNotify:
if ( tab_grab || control_grab )
{
tab_box->handleMouseEvent( e );
return TRUE;
}
break;
case KeyPress:
{
was_user_interaction = true;
KKeyNative keyX( (XEvent*)e );
uint keyQt = keyX.keyCodeQt();
kdDebug(125) << "Workspace::keyPress( " << keyX.key().toString() << " )" << endl;
if (movingClient)
{
movingClient->keyPressEvent(keyQt);
return true;
}
if( tab_grab || control_grab )
{
tabBoxKeyPress( keyX );
return true;
}
break;
}
case KeyRelease:
was_user_interaction = true;
if( tab_grab || control_grab )
{
tabBoxKeyRelease( e->xkey );
return true;
}
break;
};
if( Client* c = findClient( WindowMatchPredicate( e->xany.window )))
{
if( c->windowEvent( e ))
return true;
}
else if( Client* c = findClient( WrapperIdMatchPredicate( e->xany.window )))
{
if( c->windowEvent( e ))
return true;
}
else if( Client* c = findClient( FrameIdMatchPredicate( e->xany.window )))
{
if( c->windowEvent( e ))
return true;
}
else
{
Window special = findSpecialEventWindow( e );
if( special != None )
if( Client* c = findClient( WindowMatchPredicate( special )))
{
if( c->windowEvent( e ))
return true;
}
}
if( movingClient != NULL && movingClient->moveResizeGrabWindow() == e->xany.window
&& ( e->type == MotionNotify || e->type == ButtonPress || e->type == ButtonRelease ))
{
if( movingClient->windowEvent( e ))
return true;
}
switch (e->type)
{
case CreateNotify:
if ( e->xcreatewindow.parent == root &&
!QWidget::find( e->xcreatewindow.window) &&
!e->xcreatewindow.override_redirect )
{
// see comments for allowClientActivation()
XChangeProperty(qt_xdisplay(), e->xcreatewindow.window,
atoms->kde_net_wm_user_creation_time, XA_CARDINAL,
32, PropModeReplace, (unsigned char *)&qt_x_time, 1);
}
break;
case UnmapNotify:
{
// check for system tray windows
if ( removeSystemTrayWin( e->xunmap.window, true ) )
{
// If the system tray gets destroyed, the system tray
// icons automatically get unmapped, reparented and mapped
// again to the closest non-client ancestor due to
// QXEmbed's SaveSet feature. Unfortunatly with kicker
// this closest ancestor is not the root window, but our
// decoration, so we reparent explicitely back to the root
// window.
XEvent ev;
WId w = e->xunmap.window;
if ( XCheckTypedWindowEvent (qt_xdisplay(), w,
ReparentNotify, &ev) )
{
if ( ev.xreparent.parent != root )
{
XReparentWindow( qt_xdisplay(), w, root, 0, 0 );
addSystemTrayWin( w );
}
}
return TRUE;
}
return ( e->xunmap.event != e->xunmap.window ); // hide wm typical event from Qt
}
case MapNotify:
return ( e->xmap.event != e->xmap.window ); // hide wm typical event from Qt
case ReparentNotify:
{
//do not confuse Qt with these events. After all, _we_ are the
//window manager who does the reparenting.
return TRUE;
}
case DestroyNotify:
{
if ( removeSystemTrayWin( e->xdestroywindow.window, false ) )
return TRUE;
return false;
}
case MapRequest:
{
updateXTime();
// e->xmaprequest.window is different from e->xany.window
// TODO this shouldn't be necessary now
Client* c = findClient( WindowMatchPredicate( e->xmaprequest.window ));
if ( !c )
{
// don't check for the parent being the root window, this breaks when some app unmaps
// a window, changes something and immediately maps it back, without giving KWin
// a chance to reparent it back to root
// since KWin can get MapRequest only for root window children and
// children of WindowWrapper (=clients), the check is AFAIK useless anyway
// Note: Now the save-set support in Client::mapRequestEvent() actually requires that
// this code doesn't check the parent to be root.
// if ( e->xmaprequest.parent == root ) { //###TODO store previously destroyed client ids
if ( addSystemTrayWin( e->xmaprequest.window ) )
return TRUE;
c = createClient( e->xmaprequest.window, false );
if ( c != NULL && root != qt_xrootwin() )
{ // TODO what is this?
// TODO may use QWidget::create
XReparentWindow( qt_xdisplay(), c->frameId(), root, 0, 0 );
}
if( c == NULL ) // refused to manage, simply map it (most probably override redirect)
XMapRaised( qt_xdisplay(), e->xmaprequest.window );
return true;
}
if ( c )
{
c->windowEvent( e );
if ( !c->wantsTabFocus())
focus_chain.remove( c ); // TODO move focus_chain changes to functions
return true;
}
break;
}
case EnterNotify:
{
if ( QWhatsThis::inWhatsThisMode() )
{
QWidget* w = QWidget::find( e->xcrossing.window );
if ( w )
QWhatsThis::leaveWhatsThisMode();
}
if( electricBorder(e))
return true;
break;
}
case LeaveNotify:
{
if ( !QWhatsThis::inWhatsThisMode() )
break;
// TODO is this cliente ever found, given that client events are searched above?
Client* c = findClient( FrameIdMatchPredicate( e->xcrossing.window ));
if ( c && e->xcrossing.detail != NotifyInferior )
QWhatsThis::leaveWhatsThisMode();
break;
}
case ConfigureRequest:
{
if ( e->xconfigurerequest.parent == root )
{
XWindowChanges wc;
unsigned int value_mask = 0;
wc.border_width = 0;
wc.x = e->xconfigurerequest.x;
wc.y = e->xconfigurerequest.y;
wc.width = e->xconfigurerequest.width;
wc.height = e->xconfigurerequest.height;
wc.sibling = None;
wc.stack_mode = Above;
value_mask = e->xconfigurerequest.value_mask | CWBorderWidth;
XConfigureWindow( qt_xdisplay(), e->xconfigurerequest.window, value_mask, &wc );
return true;
}
break;
}
case KeyPress:
if ( mouse_emulation )
return keyPressMouseEmulation( e->xkey );
break;
case KeyRelease:
if ( mouse_emulation )
return FALSE;
break;
case FocusIn:
if( e->xfocus.window == rootWin()
&& ( e->xfocus.detail == NotifyDetailNone || e->xfocus.detail == NotifyPointerRoot ))
{
updateXTime(); // focusToNull() uses qt_x_time, which is old now (FocusIn has no timestamp)
Window focus;
int revert;
XGetInputFocus( qt_xdisplay(), &focus, &revert );
if( focus == None || focus == PointerRoot )
{
//kdWarning( 1212 ) << "X focus set to None/PointerRoot, reseting focus" << endl;
Client *c = mostRecentlyActivatedClient();
if( c != NULL )
requestFocus( c, true );
else if( activateNextClient( NULL ))
; // ok, activated
else
focusToNull();
}
}
// fall through
case FocusOut:
return true; // always eat these, they would tell Qt that KWin is the active app
case ClientMessage:
if( electricBorder( e ))
return true;
break;
default:
break;
}
return FALSE;
}
// Some events don't have the actual window which caused the event
// as e->xany.window (e.g. ConfigureRequest), but as some other
// field in the XEvent structure.
Window Workspace::findSpecialEventWindow( XEvent* e )
{
switch( e->type )
{
case CreateNotify:
return e->xcreatewindow.window;
case DestroyNotify:
return e->xdestroywindow.window;
case UnmapNotify:
return e->xunmap.window;
case MapNotify:
return e->xmap.window;
case MapRequest:
return e->xmaprequest.window;
case ReparentNotify:
return e->xreparent.window;
case ConfigureNotify:
return e->xconfigure.window;
case GravityNotify:
return e->xgravity.window;
case ConfigureRequest:
return e->xconfigurerequest.window;
case CirculateNotify:
return e->xcirculate.window;
case CirculateRequest:
return e->xcirculaterequest.window;
default:
return None;
};
}
/*!
Handles client messages sent to the workspace
*/
bool Workspace::netCheck( XEvent* e )
{
unsigned int dirty = rootInfo->event( e );
if ( dirty & NET::DesktopNames )
saveDesktopSettings();
return dirty != 0;
}
// ****************************************
// Client
// ****************************************
/*!
General handler for XEvents concerning the client window
*/
bool Client::windowEvent( XEvent* e )
{
if( e->xany.window == window()) // avoid doing stuff on frame or wrapper
{
unsigned long dirty[ 2 ];
info->event( e, dirty, 2 ); // pass through the NET stuff
if ( ( dirty[ WinInfo::PROTOCOLS ] & NET::WMName ) != 0 )
fetchName();
if ( ( dirty[ WinInfo::PROTOCOLS ] & NET::WMIconName ) != 0 )
fetchIconicName();
if ( ( dirty[ WinInfo::PROTOCOLS ] & NET::WMStrut ) != 0
|| ( dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2ExtendedStrut ) != 0 )
{
if( isTopMenu()) // the fallback mode of KMenuBar may alter the strut
checkWorkspacePosition(); // restore it
workspace()->updateClientArea();
}
if ( ( dirty[ WinInfo::PROTOCOLS ] & NET::WMIcon) != 0 )
getIcons();
// Note there's a difference between userTime() and info->userTime()
// info->userTime() is the value of the property, userTime() also includes
// updates of the time done by KWin (ButtonPress on windowrapper etc.).
if(( dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2UserTime ) != 0 )
{
workspace()->setWasUserInteraction();
updateUserTime( info->userTime());
}
if(( dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2StartupId ) != 0 )
startupIdChanged();
if( dirty[ WinInfo::PROTOCOLS ] & NET::WMIconGeometry )
{
if( demandAttentionKNotifyTimer != NULL )
demandAttentionKNotify();
}
}
// TODO move all focus handling stuff to separate file?
switch (e->type)
{
case UnmapNotify:
unmapNotifyEvent( &e->xunmap );
break;
case DestroyNotify:
destroyNotifyEvent( &e->xdestroywindow );
break;
case MapRequest:
// this one may pass the event to workspace
return mapRequestEvent( &e->xmaprequest );
case ConfigureRequest:
configureRequestEvent( &e->xconfigurerequest );
break;
case PropertyNotify:
propertyNotifyEvent( &e->xproperty );
break;
case KeyPress:
updateUserTime();
workspace()->setWasUserInteraction();
break;
case ButtonPress:
updateUserTime();
workspace()->setWasUserInteraction();
buttonPressEvent( e->xbutton.window, e->xbutton.button, e->xbutton.state,
e->xbutton.x, e->xbutton.y, e->xbutton.x_root, e->xbutton.y_root );
break;
case KeyRelease:
// don't update user time on releases
// e.g. if the user presses Alt+F2, the Alt release
// would appear as user input to the currently active window
break;
case ButtonRelease:
// don't update user time on releases
// e.g. if the user presses Alt+F2, the Alt release
// would appear as user input to the currently active window
buttonReleaseEvent( e->xbutton.window, e->xbutton.button, e->xbutton.state,
e->xbutton.x, e->xbutton.y, e->xbutton.x_root, e->xbutton.y_root );
break;
case MotionNotify:
motionNotifyEvent( e->xmotion.window, e->xmotion.state,
e->xmotion.x, e->xmotion.y, e->xmotion.x_root, e->xmotion.y_root );
break;
case EnterNotify:
enterNotifyEvent( &e->xcrossing );
// MotionNotify is guaranteed to be generated only if the mouse
// move start and ends in the window; for cases when it only
// starts or only ends there, Enter/LeaveNotify are generated.
// Fake a MotionEvent in such cases to make handle of mouse
// events simpler (Qt does that too).
motionNotifyEvent( e->xcrossing.window, e->xcrossing.state,
e->xcrossing.x, e->xcrossing.y, e->xcrossing.x_root, e->xcrossing.y_root );
break;
case LeaveNotify:
motionNotifyEvent( e->xcrossing.window, e->xcrossing.state,
e->xcrossing.x, e->xcrossing.y, e->xcrossing.x_root, e->xcrossing.y_root );
leaveNotifyEvent( &e->xcrossing );
break;
case FocusIn:
focusInEvent( &e->xfocus );
break;
case FocusOut:
focusOutEvent( &e->xfocus );
break;
case ReparentNotify:
break;
case ClientMessage:
clientMessageEvent( &e->xclient );
break;
case ColormapChangeMask:
if( e->xany.window == window())
{
cmap = e->xcolormap.colormap;
if ( isActive() )
workspace()->updateColormap();
}
break;
case VisibilityNotify:
visibilityNotifyEvent( &e->xvisibility );
break;
default:
if( e->xany.window == window())
{
if( e->type == Shape::shapeEvent() )
{
is_shape = Shape::hasShape( window()); // workaround for #19644
updateShape();
}
}
break;
}
return true; // eat all events
}
/*!
Handles map requests of the client window
*/
bool Client::mapRequestEvent( XMapRequestEvent* e )
{
if( e->window != window())
{
// Special support for the save-set feature, which is a bit broken.
// If there's a window from one client embedded in another one,
// e.g. using XEMBED, and the embedder suddenly looses its X connection,
// save-set will reparent the embedded window to its closest ancestor
// that will remains. Unfortunately, with reparenting window managers,
// this is not the root window, but the frame (or in KWin's case,
// it's the wrapper for the client window). In this case,
// the wrapper will get ReparentNotify for a window it won't know,
// which will be ignored, and then it gets MapRequest, as save-set
// always maps. Returning true here means that Workspace::workspaceEvent()
// will handle this MapRequest and manage this window (i.e. act as if
// it was reparented to root window).
if( e->parent == wrapperId())
return false;
return true; // no messing with frame etc.
}
if( isTopMenu() && workspace()->managingTopMenus())
return true; // kwin controls these
switch ( mappingState() )
{
case WithdrawnState:
assert( false ); // WMs are not supposed to manage clients in Withdrawn state,
// manage(); // after initial mapping manage() is called from createClient()
break;
case IconicState:
// also copied in clientMessage()
if( isMinimized())
unminimize();
if( isShade())
setShade( ShadeNone );
if( !isOnCurrentDesktop())
{
if( workspace()->allowClientActivation( this ))
workspace()->activateClient( this );
else
demandAttention();
}
break;
case NormalState:
// TODO fake MapNotify?
break;
}
return true;
}
/*!
Handles unmap notify events of the client window
*/
void Client::unmapNotifyEvent( XUnmapEvent* e )
{
if( e->window != window())
return;
if( e->event != wrapperId())
{ // most probably event from root window when initially reparenting
bool ignore = true;
if( e->event == workspace()->rootWin() && e->send_event )
ignore = false; // XWithdrawWindow()
if( ignore )
return;
}
switch( mappingState())
{
case IconicState:
releaseWindow();
return;
case NormalState:
// maybe we will be destroyed soon. Check this first.
XEvent ev;
if( XCheckTypedWindowEvent (qt_xdisplay(), window(),
DestroyNotify, &ev) ) // TODO I don't like this much
{
destroyClient(); // deletes this
return;
}
releaseWindow();
break;
default:
assert( false );
}
}
void Client::destroyNotifyEvent( XDestroyWindowEvent* e )
{
if( e->window != window())
return;
destroyClient();
}
bool blockAnimation = FALSE;
/*!
Handles client messages for the client window
*/
void Client::clientMessageEvent( XClientMessageEvent* e )
{
if( e->window != window())
return; // ignore frame/wrapper
// WM_STATE
if ( e->message_type == atoms->kde_wm_change_state )
{
if( isTopMenu() && workspace()->managingTopMenus())
return; // kwin controls these
if( e->data.l[ 1 ] )
blockAnimation = true;
if( e->data.l[ 0 ] == IconicState )
minimize();
else if( e->data.l[ 0 ] == NormalState )
{ // copied from mapRequest()
if( isMinimized())
unminimize();
if( isShade())
setShade( ShadeNone );
if( !isOnCurrentDesktop())
{
if( workspace()->allowClientActivation( this ))
workspace()->activateClient( this );
else
demandAttention();
}
}
blockAnimation = false;
}
else if ( e->message_type == atoms->wm_change_state)
{
if( isTopMenu() && workspace()->managingTopMenus())
return; // kwin controls these
if ( e->data.l[0] == IconicState )
minimize();
return;
}
}
/*!
Handles configure requests of the client window
*/
void Client::configureRequestEvent( XConfigureRequestEvent* e )
{
if( e->window != window())
return; // ignore frame/wrapper
if ( isResize() || isMove())
return; // we have better things to do right now
if( fullscreen_mode == FullScreenNormal ) // refuse resizing of fullscreen windows
{ // but allow resizing fullscreen hacks in order to let them cancel fullscreen mode
sendSyntheticConfigureNotify();
return;
}
if( isSplash() // no manipulations with splashscreens either
|| isTopMenu()) // topmenus neither
{
sendSyntheticConfigureNotify();
return;
}
if ( e->value_mask & CWBorderWidth )
{
// first, get rid of a window border
XWindowChanges wc;
unsigned int value_mask = 0;
wc.border_width = 0;
value_mask = CWBorderWidth;
XConfigureWindow( qt_xdisplay(), window(), value_mask, & wc );
}
if( e->value_mask & ( CWX | CWY | CWHeight | CWWidth ))
configureRequest( e->value_mask, e->x, e->y, e->width, e->height, 0, false );
if ( e->value_mask & CWStackMode )
restackWindow( e->above, e->detail, NET::FromApplication, userTime(), false );
// TODO sending a synthetic configure notify always is fine, even in cases where
// the ICCCM doesn't require this - it can be though of as 'the WM decided to move
// the window later'. The client should not cause that many configure request,
// so this should not have any significant impact. With user moving/resizing
// the it should be optimized though (see also Client::setGeometry()/plainResize()/move()).
sendSyntheticConfigureNotify();
// SELI TODO accept configure requests for isDesktop windows (because kdesktop
// may get XRANDR resize event before kwin), but check it's still at the bottom?
}
/*!
Handles property changes of the client window
*/
void Client::propertyNotifyEvent( XPropertyEvent* e )
{
if( e->window != window())
return; // ignore frame/wrapper
switch ( e->atom )
{
case XA_WM_NORMAL_HINTS:
getWmNormalHints();
break;
case XA_WM_NAME:
fetchName();
break;
case XA_WM_ICON_NAME:
fetchIconicName();
break;
case XA_WM_TRANSIENT_FOR:
readTransient();
break;
case XA_WM_HINTS:
getWMHints();
getIcons(); // because KWin::icon() uses WMHints as fallback
break;
default:
if ( e->atom == atoms->wm_protocols )
getWindowProtocols();
else if (e->atom == atoms->wm_client_leader )
getWmClientLeader();
else if( e->atom == qt_window_role )
window_role = staticWindowRole( window());
else if( e->atom == atoms->motif_wm_hints )
getMotifHints();
break;
}
}
void Client::enterNotifyEvent( XCrossingEvent* e )
{
if( e->window != frameId())
return; // care only about entering the whole frame
if( e->mode == NotifyNormal ||
( !options->focusPolicyIsReasonable() &&
e->mode == NotifyUngrab ) )
{
if (options->shadeHover && isShade())
{
delete shadeHoverTimer;
shadeHoverTimer = new QTimer( this );
connect( shadeHoverTimer, SIGNAL( timeout() ), this, SLOT( shadeHover() ));
shadeHoverTimer->start( options->shadeHoverInterval, TRUE );
}
if ( options->focusPolicy == Options::ClickToFocus )
return;
if ( options->autoRaise && !isDesktop() &&
!isDock() && !isTopMenu() && workspace()->focusChangeEnabled() &&
workspace()->topClientOnDesktop( workspace()->currentDesktop()) != this )
{
delete autoRaiseTimer;
autoRaiseTimer = new QTimer( this );
connect( autoRaiseTimer, SIGNAL( timeout() ), this, SLOT( autoRaise() ) );
autoRaiseTimer->start( options->autoRaiseInterval, TRUE );
}
if ( options->focusPolicy != Options::FocusStrictlyUnderMouse && ( isDesktop() || isDock() || isTopMenu() ) )
return;
if ( options->delayFocus )
workspace()->requestDelayFocus( this );
else
workspace()->requestFocus( this );
return;
}
}
void Client::leaveNotifyEvent( XCrossingEvent* e )
{
if( e->window != frameId())
return; // care only about leaving the whole frame
if ( e->mode == NotifyNormal )
{
if ( !buttonDown )
{
mode = PositionCenter;
setCursor( arrowCursor );
}
bool lostMouse = !rect().contains( QPoint( e->x, e->y ) );
// 'lostMouse' wouldn't work with e.g. B2 or Keramik, which have non-rectangular decorations
// (i.e. the LeaveNotify event comes before leaving the rect and no LeaveNotify event
// comes after leaving the rect) - so lets check if the pointer is really outside the window
// TODO this still sucks if a window appears above this one - it should lose the mouse
// if this window is another client, but not if it's a popup ... maybe after KDE3.1 :(
// (repeat after me 'AARGHL!')
if ( !lostMouse && e->detail != NotifyInferior )
{
int d1, d2, d3, d4;
unsigned int d5;
Window w, child;
if( XQueryPointer( qt_xdisplay(), frameId(), &w, &child, &d1, &d2, &d3, &d4, &d5 ) == False
|| child == None )
lostMouse = true; // really lost the mouse
}
if ( lostMouse )
{
cancelAutoRaise();
workspace()->cancelDelayFocus();
cancelShadeHover();
if ( shade_mode == ShadeHover && !moveResizeMode && !buttonDown )
setShade( ShadeNormal );
}
if ( options->focusPolicy == Options::FocusStrictlyUnderMouse )
if ( isActive() && lostMouse )
workspace()->requestFocus( 0 ) ;
return;
}
}
#define XCapL KKeyNative::modXLock()
#define XNumL KKeyNative::modXNumLock()
#define XScrL KKeyNative::modXScrollLock()
void Client::grabButton( int modifier )
{
unsigned int mods[ 8 ] =
{
0, XCapL, XNumL, XNumL | XCapL,
XScrL, XScrL | XCapL,
XScrL | XNumL, XScrL | XNumL | XCapL
};
for( int i = 0;
i < 8;
++i )
XGrabButton( qt_xdisplay(), AnyButton,
modifier | mods[ i ],
wrapperId(), FALSE, ButtonPressMask,
GrabModeSync, GrabModeAsync, None, None );
}
void Client::ungrabButton( int modifier )
{
unsigned int mods[ 8 ] =
{
0, XCapL, XNumL, XNumL | XCapL,
XScrL, XScrL | XCapL,
XScrL | XNumL, XScrL | XNumL | XCapL
};
for( int i = 0;
i < 8;
++i )
XUngrabButton( qt_xdisplay(), AnyButton,
modifier | mods[ i ], wrapperId());
}
#undef XCapL
#undef XNumL
#undef XScrL
/*
Releases the passive grab for some modifier combinations when a
window becomes active. This helps broken X programs that
missinterpret LeaveNotify events in grab mode to work properly
(Motif, AWT, Tk, ...)
*/
void Client::updateMouseGrab()
{ // see Workspace::establishTabBoxGrab()
if( isActive() && !workspace()->forcedGlobalMouseGrab())
{
// remove the grab for no modifiers only if the window
// is unobscured or if the user doesn't want click raise
if( !options->clickRaise || not_obscured )
ungrabButton( None );
else
grabButton( None );
ungrabButton( ShiftMask );
ungrabButton( ControlMask );
ungrabButton( ControlMask | ShiftMask );
}
else
{
XUngrabButton( qt_xdisplay(), AnyButton, AnyModifier, wrapperId());
// simply grab all modifier combinations
XGrabButton(qt_xdisplay(), AnyButton, AnyModifier, wrapperId(), FALSE,
ButtonPressMask,
GrabModeSync, GrabModeAsync,
None, None );
}
}
int qtToX11Button( Qt::ButtonState button )
{
if( button == Qt::LeftButton )
return Button1;
else if( button == Qt::MidButton )
return Button2;
else if( button == Qt::RightButton )
return Button3;
return AnyButton;
}
int qtToX11State( Qt::ButtonState state )
{
int ret = 0;
if( state & Qt::LeftButton )
ret |= Button1Mask;
if( state & Qt::MidButton )
ret |= Button2Mask;
if( state & Qt::RightButton )
ret |= Button3Mask;
if( state & Qt::ShiftButton )
ret |= ShiftMask;
if( state & Qt::ControlButton )
ret |= ControlMask;
if( state & Qt::AltButton )
ret |= KKeyNative::modX(KKey::ALT);
if( state & Qt::MetaButton )
ret |= KKeyNative::modX(KKey::WIN);
return ret;
}
// Qt propagates mouse events up the widget hierachy, which means events
// for the decoration window cannot be (easily) intercepted as X11 events
bool Client::eventFilter( QObject* o, QEvent* e )
{
if( decoration == NULL
|| o != decoration->widget())
return false;
if( e->type() == QEvent::MouseButtonPress )
{
QMouseEvent* ev = static_cast< QMouseEvent* >( e );
return buttonPressEvent( decorationId(), qtToX11Button( ev->button()), qtToX11State( ev->state()),
ev->x(), ev->y(), ev->globalX(), ev->globalY() );
}
if( e->type() == QEvent::MouseButtonRelease )
{
QMouseEvent* ev = static_cast< QMouseEvent* >( e );
return buttonReleaseEvent( decorationId(), qtToX11Button( ev->button()), qtToX11State( ev->state()),
ev->x(), ev->y(), ev->globalX(), ev->globalY() );
}
if( e->type() == QEvent::MouseMove ) // FRAME i fake z enter/leave?
{
QMouseEvent* ev = static_cast< QMouseEvent* >( e );
return motionNotifyEvent( decorationId(), qtToX11State( ev->state()),
ev->x(), ev->y(), ev->globalX(), ev->globalY() );
}
if( e->type() == QEvent::Wheel )
{
QWheelEvent* ev = static_cast< QWheelEvent* >( e );
bool r = buttonPressEvent( decorationId(), ev->delta() > 0 ? Button4 : Button5, qtToX11State( ev->state()),
ev->x(), ev->y(), ev->globalX(), ev->globalY() );
r = r || buttonReleaseEvent( decorationId(), ev->delta() > 0 ? Button4 : Button5, qtToX11State( ev->state()),
ev->x(), ev->y(), ev->globalX(), ev->globalY() );
return r;
}
if( e->type() == QEvent::Resize )
{
QResizeEvent* ev = static_cast< QResizeEvent* >( e );
// Filter out resize events that inform about size different than frame size.
// This will ensure that decoration->width() etc. and decoration->widget()->width() will be in sync.
// These events only seem to be delayed events from initial resizing before show() was called
// on the decoration widget.
if( ev->size() != size())
return true;
}
return false;
}
// return value matters only when filtering events before decoration gets them
bool Client::buttonPressEvent( Window w, int button, int state, int x, int y, int x_root, int y_root )
{
if (buttonDown)
{
if( w == wrapperId())
XAllowEvents(qt_xdisplay(), SyncPointer, CurrentTime ); //qt_x_time);
return true;
}
if( w == wrapperId() || w == frameId() || w == decorationId())
{ // FRAME neco s tohohle by se melo zpracovat, nez to dostane dekorace
updateUserTime();
workspace()->setWasUserInteraction();
uint keyModX = (options->keyCmdAllModKey() == Qt::Key_Meta) ?
KKeyNative::modX(KKey::WIN) :
KKeyNative::modX(KKey::ALT);
bool bModKeyHeld = keyModX != 0 && ( state & KKeyNative::accelModMaskX()) == keyModX;
if( isSplash()
&& button == Button1 && !bModKeyHeld )
{ // hide splashwindow if the user clicks on it
hideClient( true );
if( w == wrapperId())
XAllowEvents(qt_xdisplay(), SyncPointer, CurrentTime ); //qt_x_time);
return true;
}
Options::MouseCommand com = Options::MouseNothing;
bool was_action = false;
bool perform_handled = false;
if ( bModKeyHeld )
{
was_action = true;
switch (button)
{
case Button1:
com = options->commandAll1();
break;
case Button2:
com = options->commandAll2();
break;
case Button3:
com = options->commandAll3();
break;
case Button4:
case Button5:
com = options->operationWindowMouseWheel( button == Button4 ? 120 : -120 );
break;
}
}
else
{ // inactive inner window
if( !isActive() && w == wrapperId())
{
was_action = true;
perform_handled = true;
switch (button)
{
case Button1:
com = options->commandWindow1();
break;
case Button2:
com = options->commandWindow2();
break;
case Button3:
com = options->commandWindow3();
break;
default:
com = Options::MouseActivateAndPassClick;
}
}
// active inner window
if( isActive() && w == wrapperId()
&& options->clickRaise && button < 4 ) // exclude wheel
{
com = Options::MouseActivateRaiseAndPassClick;
was_action = true;
perform_handled = true;
}
}
if( was_action )
{
bool replay = performMouseCommand( com, QPoint( x_root, y_root), perform_handled );
if ( isSpecialWindow())
replay = TRUE;
if( w == wrapperId()) // these can come only from a grab
XAllowEvents(qt_xdisplay(), replay? ReplayPointer : SyncPointer, CurrentTime ); //qt_x_time);
return true;
}
}
if( w == wrapperId()) // these can come only from a grab
{
XAllowEvents(qt_xdisplay(), ReplayPointer, CurrentTime ); //qt_x_time);
return true;
}
if( w == decorationId())
return false; // don't eat decoration events
if( w == frameId())
processDecorationButtonPress( button, state, x, y, x_root, y_root );
return true;
}
// this function processes button press events only after decoration decides not to handle them,
// unlike buttonPressEvent(), which (when the window is decoration) filters events before decoration gets them
void Client::processDecorationButtonPress( int button, int /*state*/, int x, int y, int x_root, int y_root )
{
Options::MouseCommand com = Options::MouseNothing;
bool active = isActive();
if ( !wantsInput() ) // we cannot be active, use it anyway
active = TRUE;
if ( button == Button1 )
com = active ? options->commandActiveTitlebar1() : options->commandInactiveTitlebar1();
else if ( button == Button2 )
com = active ? options->commandActiveTitlebar2() : options->commandInactiveTitlebar2();
else if ( button == Button3 )
com = active ? options->commandActiveTitlebar3() : options->commandInactiveTitlebar3();
if( button == Button1
&& com != Options::MouseOperationsMenu // actions where it's not possible to get the matching
&& com != Options::MouseMinimize ) // mouse release event
{
mode = mousePosition( QPoint( x, y ));
buttonDown = TRUE;
moveOffset = QPoint( x, y );
invertedMoveOffset = rect().bottomRight() - moveOffset;
unrestrictedMoveResize = false;
setCursor( mode ); // update to sizeAllCursor if about to move
}
performMouseCommand( com, QPoint( x_root, y_root ));
}
// called from decoration
void Client::processMousePressEvent( QMouseEvent* e )
{
if( e->type() != QEvent::MouseButtonPress )
{
kdWarning() << "processMousePressEvent()" << endl;
return;
}
int button;
switch( e->button())
{
case LeftButton:
button = Button1;
break;
case MidButton:
button = Button2;
break;
case RightButton:
button = Button3;
break;
default:
return;
}
processDecorationButtonPress( button, e->state(), e->x(), e->y(), e->globalX(), e->globalY());
}
// return value matters only when filtering events before decoration gets them
bool Client::buttonReleaseEvent( Window w, int /*button*/, int state, int x, int y, int x_root, int y_root )
{
if( w == decorationId() && !buttonDown)
return false;
if( w == wrapperId())
{
XAllowEvents(qt_xdisplay(), SyncPointer, CurrentTime ); //qt_x_time);
return true;
}
if( w != frameId() && w != decorationId() && w != moveResizeGrabWindow())
return true;
x = this->x(); // translate from grab window to local coords
y = this->y();
if ( (state & ( Button1Mask & Button2Mask & Button3Mask )) == 0 )
{
buttonDown = FALSE;
if ( moveResizeMode )
{
finishMoveResize( false );
// mouse position is still relative to old Client position, adjust it
QPoint mousepos( x_root - x, y_root - y );
mode = mousePosition( mousepos );
}
setCursor( mode );
}
return true;
}
static bool was_motion = false;
static Time next_motion_time = CurrentTime;
// Check whole incoming X queue for MotionNotify events
// checking whole queue is done by always returning False in the predicate.
// If there are more MotionNotify events in the queue, all until the last
// one may be safely discarded (if a ButtonRelease event comes, a MotionNotify
// will be faked from it, so there's no need to check other events).
// This helps avoiding being overloaded by being flooded from many events
// from the XServer.
static Bool motion_predicate( Display*, XEvent* ev, XPointer )
{
if( ev->type == MotionNotify )
{
was_motion = true;
next_motion_time = ev->xmotion.time; // for setting time
}
return False;
}
static bool waitingMotionEvent()
{
// The queue doesn't need to be checked until the X timestamp
// of processes events reaches the timestamp of the last suitable
// MotionNotify event in the queue.
if( next_motion_time != CurrentTime
&& timestampCompare( qt_x_time, next_motion_time ) < 0 )
return true;
was_motion = false;
XSync( qt_xdisplay(), False ); // this helps to discard more MotionNotify events
XEvent dummy;
XCheckIfEvent( qt_xdisplay(), &dummy, motion_predicate, NULL );
return was_motion;
}
// return value matters only when filtering events before decoration gets them
bool Client::motionNotifyEvent( Window w, int /*state*/, int x, int y, int x_root, int y_root )
{
if( w != frameId() && w != decorationId() && w != moveResizeGrabWindow())
return true; // care only about the whole frame
if ( !buttonDown )
{
Position newmode = mousePosition( QPoint( x, y ));
if( newmode != mode )
setCursor( newmode );
mode = newmode;
// reset the timestamp for the optimization, otherwise with long passivity
// the option in waitingMotionEvent() may be always true
next_motion_time = CurrentTime;
return false;
}
if( w == moveResizeGrabWindow())
{
x = this->x(); // translate from grab window to local coords
y = this->y();
}
if( !waitingMotionEvent())
handleMoveResize( x, y, x_root, y_root );
return true;
}
void Client::focusInEvent( XFocusInEvent* e )
{
if( e->window != window())
return; // only window gets focus
if ( e->mode == NotifyUngrab )
return; // we don't care
if ( e->detail == NotifyPointer )
return; // we don't care
if( !isShown( false ) || !isOnCurrentDesktop()) // we unmapped it, but it got focus meanwhile ->
return; // activateNextClient() already transferred focus elsewhere
// check if this client is in should_get_focus list or if activation is allowed
bool activate = workspace()->allowClientActivation( this, -1U, true );
workspace()->gotFocusIn( this ); // remove from should_get_focus list
if( activate )
setActive( TRUE );
else
{
workspace()->restoreFocus();
demandAttention();
}
}
// When a client loses focus, FocusOut events are usually immediatelly
// followed by FocusIn events for another client that gains the focus
// (unless the focus goes to another screen, or to the nofocus widget).
// Without this check, the former focused client would have to be
// deactivated, and after that, the new one would be activated, with
// a short time when there would be no active client. This can cause
// flicker sometimes, e.g. when a fullscreen is shown, and focus is transferred
// from it to its transient, the fullscreen would be kept in the Active layer
// at the beginning and at the end, but not in the middle, when the active
// client would be temporarily none (see Client::belongToLayer() ).
// Therefore, the events queue is checked, whether it contains the matching
// FocusIn event, and if yes, deactivation of the previous client will
// be skipped, as activation of the new one will automatically deactivate
// previously active client.
static bool follows_focusin = false;
static bool follows_focusin_failed = false;
static Bool predicate_follows_focusin( Display*, XEvent* e, XPointer arg )
{
if( follows_focusin || follows_focusin_failed )
return False;
Client* c = ( Client* ) arg;
if( e->type == FocusIn && c->workspace()->findClient( WindowMatchPredicate( e->xfocus.window )))
{ // found FocusIn
follows_focusin = true;
return False;
}
// events that may be in the queue before the FocusIn event that's being
// searched for
if( e->type == FocusIn || e->type == FocusOut || e->type == KeymapNotify )
return False;
follows_focusin_failed = true; // a different event - stop search
return False;
}
static bool check_follows_focusin( Client* c )
{
follows_focusin = follows_focusin_failed = false;
XEvent dummy;
// XCheckIfEvent() is used to make the search non-blocking, the predicate
// always returns False, so nothing is removed from the events queue.
// XPeekIfEvent() would block.
XCheckIfEvent( qt_xdisplay(), &dummy, predicate_follows_focusin, (XPointer)c );
return follows_focusin;
}
void Client::focusOutEvent( XFocusOutEvent* e )
{
if( e->window != window())
return; // only window gets focus
if ( e->mode == NotifyGrab )
return; // we don't care
if ( isShade() )
return; // here neither
if ( e->detail != NotifyNonlinear
&& e->detail != NotifyNonlinearVirtual )
// SELI check all this
return; // hack for motif apps like netscape
if ( QApplication::activePopupWidget() )
return;
if( !check_follows_focusin( this ))
setActive( FALSE );
}
void Client::visibilityNotifyEvent( XVisibilityEvent * e)
{
if( e->window != frameId())
return; // care only about the whole frame
bool new_not_obscured = e->state == VisibilityUnobscured;
if( not_obscured == new_not_obscured )
return;
not_obscured = new_not_obscured;
updateMouseGrab();
}
// performs _NET_WM_MOVERESIZE
void Client::NETMoveResize( int x_root, int y_root, NET::Direction direction )
{
if( direction == NET::Move )
performMouseCommand( Options::MouseMove, QPoint( x_root, y_root ));
else if( direction >= NET::TopLeft && direction <= NET::Left )
{
static const Position convert[] =
{
PositionTopLeft,
PositionTop,
PositionTopRight,
PositionRight,
PositionBottomRight,
PositionBottom,
PositionBottomLeft,
PositionLeft
};
if(!isResizable() || isShade())
return;
if( moveResizeMode )
finishMoveResize( false );
buttonDown = TRUE;
moveOffset = QPoint( x_root - x(), y_root - y()); // map from global
invertedMoveOffset = rect().bottomRight() - moveOffset;
unrestrictedMoveResize = false;
mode = convert[ direction ];
setCursor( mode );
if( !startMoveResize())
{
buttonDown = false;
setCursor( mode );
}
}
else if( direction == NET::KeyboardMove )
{ // ignore mouse coordinates given in the message, mouse position is used by the moving algorithm
QCursor::setPos( geometry().center() );
performMouseCommand( Options::MouseUnrestrictedMove, geometry().center());
}
else if( direction == NET::KeyboardSize )
{ // ignore mouse coordinates given in the message, mouse position is used by the resizing algorithm
QCursor::setPos( geometry().bottomRight());
performMouseCommand( Options::MouseUnrestrictedResize, geometry().bottomRight());
}
}
void Client::keyPressEvent( uint key_code )
{
updateUserTime();
if ( !isMove() && !isResize() )
return;
bool is_control = key_code & Qt::CTRL;
bool is_alt = key_code & Qt::ALT;
key_code = key_code & 0xffff;
int delta = is_control?1:is_alt?32:8;
QPoint pos = QCursor::pos();
switch ( key_code )
{
case Key_Left:
pos.rx() -= delta;
break;
case Key_Right:
pos.rx() += delta;
break;
case Key_Up:
pos.ry() -= delta;
break;
case Key_Down:
pos.ry() += delta;
break;
case Key_Space:
case Key_Return:
case Key_Enter:
finishMoveResize( false );
buttonDown = FALSE;
setCursor( mode );
break;
case Key_Escape:
finishMoveResize( true );
buttonDown = FALSE;
setCursor( mode );
break;
default:
return;
}
QCursor::setPos( pos );
}
// ****************************************
// Group
// ****************************************
bool Group::groupEvent( XEvent* e )
{
unsigned long dirty[ 2 ];
leader_info->event( e, dirty, 2 ); // pass through the NET stuff
if ( ( dirty[ WinInfo::PROTOCOLS ] & NET::WMIcon) != 0 )
getIcons();
if(( dirty[ WinInfo::PROTOCOLS2 ] & NET::WM2StartupId ) != 0 )
startupIdChanged();
return false;
}
} // namespace
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