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Diffstat (limited to 'kwin/activation.cpp')
| -rw-r--r-- | kwin/activation.cpp | 922 |
1 files changed, 922 insertions, 0 deletions
diff --git a/kwin/activation.cpp b/kwin/activation.cpp new file mode 100644 index 000000000..2551519ec --- /dev/null +++ b/kwin/activation.cpp @@ -0,0 +1,922 @@ +/***************************************************************** + 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 window activation and focus + stealing prevention. + +*/ + +#include "client.h" +#include "workspace.h" + +#include <fixx11h.h> +#include <qpopupmenu.h> +#include <kxerrorhandler.h> +#include <kstartupinfo.h> +#include <kstringhandler.h> +#include <klocale.h> + +#include "notifications.h" +#include "atoms.h" +#include "group.h" +#include "rules.h" + +extern Time qt_x_time; + +namespace KWinInternal +{ + +/* + Prevention of focus stealing: + + KWin tries to prevent unwanted changes of focus, that would result + from mapping a new window. Also, some nasty applications may try + to force focus change even in cases when ICCCM 4.2.7 doesn't allow it + (e.g. they may try to activate their main window because the user + definitely "needs" to see something happened - misusing + of QWidget::setActiveWindow() may be such case). + + There are 4 ways how a window may become active: + - the user changes the active window (e.g. focus follows mouse, clicking + on some window's titlebar) - the change of focus will + be done by KWin, so there's nothing to solve in this case + - the change of active window will be requested using the _NET_ACTIVE_WINDOW + message (handled in RootInfo::changeActiveWindow()) - such requests + will be obeyed, because this request is meant mainly for e.g. taskbar + asking the WM to change the active window as a result of some user action. + Normal applications should use this request only rarely in special cases. + See also below the discussion of _NET_ACTIVE_WINDOW_TRANSFER. + - the change of active window will be done by performing XSetInputFocus() + on a window that's not currently active. ICCCM 4.2.7 describes when + the application may perform change of input focus. In order to handle + misbehaving applications, KWin will try to detect focus changes to + windows that don't belong to currently active application, and restore + focus back to the currently active window, instead of activating the window + that got focus (unfortunately there's no way to FocusChangeRedirect similar + to e.g. SubstructureRedirect, so there will be short time when the focus + will be changed). The check itself that's done is + Workspace::allowClientActivation() (see below). + - a new window will be mapped - this is the most complicated case. If + the new window belongs to the currently active application, it may be safely + mapped on top and activated. The same if there's no active window, + or the active window is the desktop. These checks are done by + Workspace::allowClientActivation(). + Following checks need to compare times. One time is the timestamp + of last user action in the currently active window, the other time is + the timestamp of the action that originally caused mapping of the new window + (e.g. when the application was started). If the first time is newer than + the second one, the window will not be activated, as that indicates + futher user actions took place after the action leading to this new + mapped window. This check is done by Workspace::allowClientActivation(). + There are several ways how to get the timestamp of action that caused + the new mapped window (done in Client::readUserTimeMapTimestamp()) : + - the window may have the _NET_WM_USER_TIME property. This way + the application may either explicitly request that the window is not + activated (by using 0 timestamp), or the property contains the time + of last user action in the application. + - KWin itself tries to detect time of last user action in every window, + by watching KeyPress and ButtonPress events on windows. This way some + events may be missed (if they don't propagate to the toplevel window), + but it's good as a fallback for applications that don't provide + _NET_WM_USER_TIME, and missing some events may at most lead + to unwanted focus stealing. + - the timestamp may come from application startup notification. + Application startup notification, if it exists for the new mapped window, + should include time of the user action that caused it. + - if there's no timestamp available, it's checked whether the new window + belongs to some already running application - if yes, the timestamp + will be 0 (i.e. refuse activation) + - if the window is from session restored window, the timestamp will + be 0 too, unless this application was the active one at the time + when the session was saved, in which case the window will be + activated if there wasn't any user interaction since the time + KWin was started. + - as the last resort, the _KDE_NET_USER_CREATION_TIME timestamp + is used. For every toplevel window that is created (see CreateNotify + handling), this property is set to the at that time current time. + Since at this time it's known that the new window doesn't belong + to any existing application (better said, the application doesn't + have any other window mapped), it is either the very first window + of the application, or its the only window of the application + that was hidden before. The latter case is handled by removing + the property from windows before withdrawing them, making + the timestamp empty for next mapping of the window. In the sooner + case, the timestamp will be used. This helps in case when + an application is launched without application startup notification, + it creates its mainwindow, and starts its initialization (that + may possibly take long time). The timestamp used will be older + than any user action done after launching this application. + - if no timestamp is found at all, the window is activated. + The check whether two windows belong to the same application (same + process) is done in Client::belongToSameApplication(). Not 100% reliable, + but hopefully 99,99% reliable. + + As a somewhat special case, window activation is always enabled when + session saving is in progress. When session saving, the session + manager allows only one application to interact with the user. + Not allowing window activation in such case would result in e.g. dialogs + not becoming active, so focus stealing prevention would cause here + more harm than good. + + Windows that attempted to become active but KWin prevented this will + be marked as demanding user attention. They'll get + the _NET_WM_STATE_DEMANDS_ATTENTION state, and the taskbar should mark + them specially (blink, etc.). The state will be reset when the window + eventually really becomes active. + + There are one more ways how a window can become obstrusive, window stealing + focus: By showing above the active window, by either raising itself, + or by moving itself on the active desktop. + - KWin will refuse raising non-active window above the active one, + unless they belong to the same application. Applications shouldn't + raise their windows anyway (unless the app wants to raise one + of its windows above another of its windows). + - KWin activates windows moved to the current desktop (as that seems + logical from the user's point of view, after sending the window + there directly from KWin, or e.g. using pager). This means + applications shouldn't send their windows to another desktop + (SELI TODO - but what if they do?) + + Special cases I can think of: + - konqueror reusing, i.e. kfmclient tells running Konqueror instance + to open new window + - without focus stealing prevention - no problem + - with ASN (application startup notification) - ASN is forwarded, + and because it's newer than the instance's user timestamp, + it takes precedence + - without ASN - user timestamp needs to be reset, otherwise it would + be used, and it's old; moreover this new window mustn't be detected + as window belonging to already running application, or it wouldn't + be activated - see Client::sameAppWindowRoleMatch() for the (rather ugly) + hack + - konqueror preloading, i.e. window is created in advance, and kfmclient + tells this Konqueror instance to show it later + - without focus stealing prevention - no problem + - with ASN - ASN is forwarded, and because it's newer than the instance's + user timestamp, it takes precedence + - without ASN - user timestamp needs to be reset, otherwise it would + be used, and it's old; also, creation timestamp is changed to + the time the instance starts (re-)initializing the window, + this ensures creation timestamp will still work somewhat even in this case + - KUniqueApplication - when the window is already visible, and the new instance + wants it to activate + - without focus stealing prevention - _NET_ACTIVE_WINDOW - no problem + - with ASN - ASN is forwarded, and set on the already visible window, KWin + treats the window as new with that ASN + - without ASN - _NET_ACTIVE_WINDOW as application request is used, + and there's no really usable timestamp, only timestamp + from the time the (new) application instance was started, + so KWin will activate the window *sigh* + - the bad thing here is that there's absolutely no chance to recognize + the case of starting this KUniqueApp from Konsole (and thus wanting + the already visible window to become active) from the case + when something started this KUniqueApp without ASN (in which case + the already visible window shouldn't become active) + - the only solution is using ASN for starting applications, at least silent + (i.e. without feedback) + - when one application wants to activate another application's window (e.g. KMail + activating already running KAddressBook window ?) + - without focus stealing prevention - _NET_ACTIVE_WINDOW - no problem + - with ASN - can't be here, it's the KUniqueApp case then + - without ASN - _NET_ACTIVE_WINDOW as application request should be used, + KWin will activate the new window depending on the timestamp and + whether it belongs to the currently active application + + _NET_ACTIVE_WINDOW usage: + data.l[0]= 1 ->app request + = 2 ->pager request + = 0 - backwards compatibility + data.l[1]= timestamp +*/ + + +//**************************************** +// Workspace +//**************************************** + + +/*! + Informs the workspace about the active client, i.e. the client that + has the focus (or None if no client has the focus). This functions + is called by the client itself that gets focus. It has no other + effect than fixing the focus chain and the return value of + activeClient(). And of course, to propagate the active client to the + world. + */ +void Workspace::setActiveClient( Client* c, allowed_t ) + { + if ( active_client == c ) + return; + if( active_popup && active_popup_client != c && set_active_client_recursion == 0 ) + closeActivePopup(); + StackingUpdatesBlocker blocker( this ); + ++set_active_client_recursion; + updateFocusMousePosition( QCursor::pos()); + if( active_client != NULL ) + { // note that this may call setActiveClient( NULL ), therefore the recursion counter + active_client->setActive( false, !c || !c->isModal() || c != active_client->transientFor() ); + } + active_client = c; + Q_ASSERT( c == NULL || c->isActive()); + if( active_client != NULL ) + last_active_client = active_client; + if ( active_client ) + { + updateFocusChains( active_client, FocusChainMakeFirst ); + active_client->demandAttention( false ); + } + pending_take_activity = NULL; + + updateCurrentTopMenu(); + updateToolWindows( false ); + if( c ) + disableGlobalShortcutsForClient( c->rules()->checkDisableGlobalShortcuts( false )); + else + disableGlobalShortcutsForClient( false ); + + updateStackingOrder(); // e.g. fullscreens have different layer when active/not-active + + rootInfo->setActiveWindow( active_client? active_client->window() : 0 ); + updateColormap(); + --set_active_client_recursion; + } + +/*! + Tries to activate the client \a c. This function performs what you + expect when clicking the respective entry in a taskbar: showing and + raising the client (this may imply switching to the another virtual + desktop) and putting the focus onto it. Once X really gave focus to + the client window as requested, the client itself will call + setActiveClient() and the operation is complete. This may not happen + with certain focus policies, though. + + \sa stActiveClient(), requestFocus() + */ +void Workspace::activateClient( Client* c, bool force ) + { + if( c == NULL ) + { + focusToNull(); + setActiveClient( NULL, Allowed ); + return; + } + raiseClient( c ); + if (!c->isOnDesktop(currentDesktop()) ) + { + ++block_focus; + setCurrentDesktop( c->desktop() ); + --block_focus; + } + if( c->isMinimized()) + c->unminimize(); + +// TODO force should perhaps allow this only if the window already contains the mouse + if( options->focusPolicyIsReasonable() || force ) + requestFocus( c, force ); + + // Don't update user time for clients that have focus stealing workaround. + // As they usually belong to the current active window but fail to provide + // this information, updating their user time would make the user time + // of the currently active window old, and reject further activation for it. + // E.g. typing URL in minicli which will show kio_uiserver dialog (with workaround), + // and then kdesktop shows dialog about SSL certificate. + // This needs also avoiding user creation time in Client::readUserTimeMapTimestamp(). + if( !c->ignoreFocusStealing()) + c->updateUserTime(); + } + +/*! + Tries to activate the client by asking X for the input focus. This + function does not perform any show, raise or desktop switching. See + Workspace::activateClient() instead. + + \sa Workspace::activateClient() + */ +void Workspace::requestFocus( Client* c, bool force ) + { + takeActivity( c, ActivityFocus | ( force ? ActivityFocusForce : 0 ), false); + } + +void Workspace::takeActivity( Client* c, int flags, bool handled ) + { + // the 'if( c == active_client ) return;' optimization mustn't be done here + if (!focusChangeEnabled() && ( c != active_client) ) + flags &= ~ActivityFocus; + + if ( !c ) + { + focusToNull(); + return; + } + + if( flags & ActivityFocus ) + { + Client* modal = c->findModal(); + if( modal != NULL && modal != c ) + { + if( !modal->isOnDesktop( c->desktop())) + { + modal->setDesktop( c->desktop()); + if( modal->desktop() != c->desktop()) // forced desktop + activateClient( modal ); + } + // if the click was inside the window (i.e. handled is set), + // but it has a modal, there's no need to use handled mode, because + // the modal doesn't get the click anyway + // raising of the original window needs to be still done + if( flags & ActivityRaise ) + raiseClient( c ); + c = modal; + handled = false; + } + cancelDelayFocus(); + } + if ( !( flags & ActivityFocusForce ) && ( c->isTopMenu() || c->isDock() || c->isSplash()) ) + flags &= ~ActivityFocus; // toplevel menus and dock windows don't take focus if not forced + if( c->isShade()) + { + if( c->wantsInput() && ( flags & ActivityFocus )) + { + // client cannot accept focus, but at least the window should be active (window menu, et. al. ) + c->setActive( true ); + focusToNull(); + } + flags &= ~ActivityFocus; + handled = false; // no point, can't get clicks + } + if( !c->isShown( true )) // shouldn't happen, call activateClient() if needed + { + kdWarning( 1212 ) << "takeActivity: not shown" << endl; + return; + } + c->takeActivity( flags, handled, Allowed ); + } + +void Workspace::handleTakeActivity( Client* c, Time /*timestamp*/, int flags ) + { + if( pending_take_activity != c ) // pending_take_activity is reset when doing restack or activation + return; + if(( flags & ActivityRaise ) != 0 ) + raiseClient( c ); + if(( flags & ActivityFocus ) != 0 && c->isShown( false )) + c->takeFocus( Allowed ); + pending_take_activity = NULL; + } + +/*! + Informs the workspace that the client \a c has been hidden. If it + was the active client (or to-become the active client), + the workspace activates another one. + + \a c may already be destroyed + */ +void Workspace::clientHidden( Client* c ) + { + assert( !c->isShown( true ) || !c->isOnCurrentDesktop()); + activateNextClient( c ); + } + +// deactivates 'c' and activates next client +bool Workspace::activateNextClient( Client* c ) + { + // if 'c' is not the active or the to-become active one, do nothing + if( !( c == active_client + || ( should_get_focus.count() > 0 && c == should_get_focus.last()))) + return false; + closeActivePopup(); + if( c != NULL ) + { + if( c == active_client ) + setActiveClient( NULL, Allowed ); + should_get_focus.remove( c ); + } + if( focusChangeEnabled()) + { + if ( options->focusPolicyIsReasonable()) + { // search the focus_chain for a client to transfer focus to + // if 'c' is transient, transfer focus to the first suitable mainwindow + Client* get_focus = NULL; + const ClientList mainwindows = ( c != NULL ? c->mainClients() : ClientList()); + for( ClientList::ConstIterator it = focus_chain[currentDesktop()].fromLast(); + it != focus_chain[currentDesktop()].end(); + --it ) + { + if( !(*it)->isShown( false ) || !(*it)->isOnCurrentDesktop()) + continue; + if( mainwindows.contains( *it )) + { + get_focus = *it; + break; + } + if( get_focus == NULL ) + get_focus = *it; + } + if( get_focus == NULL ) + get_focus = findDesktop( true, currentDesktop()); + if( get_focus != NULL ) + requestFocus( get_focus ); + else + focusToNull(); + } + else + return false; + } + else + // if blocking focus, move focus to the desktop later if needed + // in order to avoid flickering + focusToNull(); + return true; + } + + +void Workspace::gotFocusIn( const Client* c ) + { + if( should_get_focus.contains( const_cast< Client* >( c ))) + { // remove also all sooner elements that should have got FocusIn, + // but didn't for some reason (and also won't anymore, because they were sooner) + while( should_get_focus.first() != c ) + should_get_focus.pop_front(); + should_get_focus.pop_front(); // remove 'c' + } + } + +void Workspace::setShouldGetFocus( Client* c ) + { + should_get_focus.append( c ); + updateStackingOrder(); // e.g. fullscreens have different layer when active/not-active + } + +// focus_in -> the window got FocusIn event +// session_active -> the window was active when saving session +bool Workspace::allowClientActivation( const Client* c, Time time, bool focus_in ) + { + // options->focusStealingPreventionLevel : + // 0 - none - old KWin behaviour, new windows always get focus + // 1 - low - focus stealing prevention is applied normally, when unsure, activation is allowed + // 2 - normal - focus stealing prevention is applied normally, when unsure, activation is not allowed, + // this is the default + // 3 - high - new window gets focus only if it belongs to the active application, + // or when no window is currently active + // 4 - extreme - no window gets focus without user intervention + if( time == -1U ) + time = c->userTime(); + int level = c->rules()->checkFSP( options->focusStealingPreventionLevel ); + if( session_saving && level <= 2 ) // <= normal + { + return true; + } + Client* ac = mostRecentlyActivatedClient(); + if( focus_in ) + { + if( should_get_focus.contains( const_cast< Client* >( c ))) + return true; // FocusIn was result of KWin's action + // Before getting FocusIn, the active Client already + // got FocusOut, and therefore got deactivated. + ac = last_active_client; + } + if( time == 0 ) // explicitly asked not to get focus + return false; + if( level == 0 ) // none + return true; + if( level == 4 ) // extreme + return false; + if( !c->isOnCurrentDesktop()) + return false; // allow only with level == 0 + if( c->ignoreFocusStealing()) + return true; + if( ac == NULL || ac->isDesktop()) + { +// kdDebug( 1212 ) << "Activation: No client active, allowing" << endl; + return true; // no active client -> always allow + } + // TODO window urgency -> return true? + if( Client::belongToSameApplication( c, ac, true )) + { +// kdDebug( 1212 ) << "Activation: Belongs to active application" << endl; + return true; + } + if( level == 3 ) // high + return false; + if( time == -1U ) // no time known + { +// kdDebug( 1212 ) << "Activation: No timestamp at all" << endl; + if( level == 1 ) // low + return true; + // no timestamp at all, don't activate - because there's also creation timestamp + // done on CreateNotify, this case should happen only in case application + // maps again already used window, i.e. this won't happen after app startup + return false; + } + // level == 2 // normal + Time user_time = ac->userTime(); +// kdDebug( 1212 ) << "Activation, compared:" << c << ":" << time << ":" << user_time +// << ":" << ( timestampCompare( time, user_time ) >= 0 ) << endl; + return timestampCompare( time, user_time ) >= 0; // time >= user_time + } + +// basically the same like allowClientActivation(), this time allowing +// a window to be fully raised upon its own request (XRaiseWindow), +// if refused, it will be raised only on top of windows belonging +// to the same application +bool Workspace::allowFullClientRaising( const Client* c, Time time ) + { + int level = c->rules()->checkFSP( options->focusStealingPreventionLevel ); + if( session_saving && level <= 2 ) // <= normal + { + return true; + } + Client* ac = mostRecentlyActivatedClient(); + if( level == 0 ) // none + return true; + if( level == 4 ) // extreme + return false; + if( ac == NULL || ac->isDesktop()) + { +// kdDebug( 1212 ) << "Raising: No client active, allowing" << endl; + return true; // no active client -> always allow + } + if( c->ignoreFocusStealing()) + return true; + // TODO window urgency -> return true? + if( Client::belongToSameApplication( c, ac, true )) + { +// kdDebug( 1212 ) << "Raising: Belongs to active application" << endl; + return true; + } + if( level == 3 ) // high + return false; + Time user_time = ac->userTime(); +// kdDebug( 1212 ) << "Raising, compared:" << time << ":" << user_time +// << ":" << ( timestampCompare( time, user_time ) >= 0 ) << endl; + return timestampCompare( time, user_time ) >= 0; // time >= user_time + } + +// called from Client after FocusIn that wasn't initiated by KWin and the client +// wasn't allowed to activate +void Workspace::restoreFocus() + { + // this updateXTime() is necessary - as FocusIn events don't have + // a timestamp *sigh*, kwin's timestamp would be older than the timestamp + // that was used by whoever caused the focus change, and therefore + // the attempt to restore the focus would fail due to old timestamp + updateXTime(); + if( should_get_focus.count() > 0 ) + requestFocus( should_get_focus.last()); + else if( last_active_client ) + requestFocus( last_active_client ); + } + +void Workspace::clientAttentionChanged( Client* c, bool set ) + { + if( set ) + { + attention_chain.remove( c ); + attention_chain.prepend( c ); + } + else + attention_chain.remove( c ); + } + +// This is used when a client should be shown active immediately after requestFocus(), +// without waiting for the matching FocusIn that will really make the window the active one. +// Used only in special cases, e.g. for MouseActivateRaiseandMove with transparent windows, +bool Workspace::fakeRequestedActivity( Client* c ) + { + if( should_get_focus.count() > 0 && should_get_focus.last() == c ) + { + if( c->isActive()) + return false; + c->setActive( true ); + return true; + } + return false; + } + +void Workspace::unfakeActivity( Client* c ) + { + if( should_get_focus.count() > 0 && should_get_focus.last() == c ) + { // TODO this will cause flicker, and probably is not needed + if( last_active_client != NULL ) + last_active_client->setActive( true ); + else + c->setActive( false ); + } + } + + +//******************************************** +// Client +//******************************************** + +/*! + Updates the user time (time of last action in the active window). + This is called inside kwin for every action with the window + that qualifies for user interaction (clicking on it, activate it + externally, etc.). + */ +void Client::updateUserTime( Time time ) + { // copied in Group::updateUserTime + if( time == CurrentTime ) + time = qt_x_time; + if( time != -1U + && ( user_time == CurrentTime + || timestampCompare( time, user_time ) > 0 )) // time > user_time + user_time = time; + group()->updateUserTime( user_time ); + } + +Time Client::readUserCreationTime() const + { + long result = -1; // Time == -1 means none + Atom type; + int format, status; + unsigned long nitems = 0; + unsigned long extra = 0; + unsigned char *data = 0; + KXErrorHandler handler; // ignore errors? + status = XGetWindowProperty( qt_xdisplay(), window(), + atoms->kde_net_wm_user_creation_time, 0, 10000, FALSE, XA_CARDINAL, + &type, &format, &nitems, &extra, &data ); + if (status == Success ) + { + if (data && nitems > 0) + result = *((long*) data); + XFree(data); + } + return result; + } + +void Client::demandAttention( bool set ) + { + if( isActive()) + set = false; + if( demands_attention == set ) + return; + demands_attention = set; + if( demands_attention ) + { + // Demand attention flag is often set right from manage(), when focus stealing prevention + // steps in. At that time the window has no taskbar entry yet, so KNotify cannot place + // e.g. the passive popup next to it. So wait up to 1 second for the icon geometry + // to be set. + // Delayed call to KNotify also solves the problem of having X server grab in manage(), + // which may deadlock when KNotify (or KLauncher when launching KNotify) need to access X. + Notify::Event e = isOnCurrentDesktop() ? Notify::DemandAttentionCurrent : Notify::DemandAttentionOther; + // Setting the demands attention state needs to be done directly in KWin, because + // KNotify would try to set it, resulting in a call to KNotify again, etc. + if( Notify::makeDemandAttention( e )) + info->setState( set ? NET::DemandsAttention : 0, NET::DemandsAttention ); + + if( demandAttentionKNotifyTimer == NULL ) + { + demandAttentionKNotifyTimer = new QTimer( this ); + connect( demandAttentionKNotifyTimer, SIGNAL( timeout()), SLOT( demandAttentionKNotify())); + } + demandAttentionKNotifyTimer->start( 1000, true ); + } + else + info->setState( set ? NET::DemandsAttention : 0, NET::DemandsAttention ); + workspace()->clientAttentionChanged( this, set ); + } + +void Client::demandAttentionKNotify() + { + Notify::Event e = isOnCurrentDesktop() ? Notify::DemandAttentionCurrent : Notify::DemandAttentionOther; + Notify::raise( e, i18n( "Window '%1' demands attention." ).arg( KStringHandler::csqueeze(caption())), this ); + demandAttentionKNotifyTimer->stop(); + demandAttentionKNotifyTimer->deleteLater(); + demandAttentionKNotifyTimer = NULL; + } + +// TODO I probably shouldn't be lazy here and do it without the macro, so that people can read it +KWIN_COMPARE_PREDICATE( SameApplicationActiveHackPredicate, const Client*, + // ignore already existing splashes, toolbars, utilities, menus and topmenus, + // as the app may show those before the main window + !cl->isSplash() && !cl->isToolbar() && !cl->isTopMenu() && !cl->isUtility() && !cl->isMenu() + && Client::belongToSameApplication( cl, value, true ) && cl != value); + +Time Client::readUserTimeMapTimestamp( const KStartupInfoId* asn_id, const KStartupInfoData* asn_data, + bool session ) const + { + Time time = info->userTime(); +// kdDebug( 1212 ) << "User timestamp, initial:" << time << endl; + // newer ASN timestamp always replaces user timestamp, unless user timestamp is 0 + // helps e.g. with konqy reusing + if( asn_data != NULL && time != 0 ) + { + // prefer timestamp from ASN id (timestamp from data is obsolete way) + if( asn_id->timestamp() != 0 + && ( time == -1U || timestampCompare( asn_id->timestamp(), time ) > 0 )) + { + time = asn_id->timestamp(); + } + else if( asn_data->timestamp() != -1U + && ( time == -1U || timestampCompare( asn_data->timestamp(), time ) > 0 )) + { + time = asn_data->timestamp(); + } + } +// kdDebug( 1212 ) << "User timestamp, ASN:" << time << endl; + if( time == -1U ) + { // The window doesn't have any timestamp. + // If it's the first window for its application + // (i.e. there's no other window from the same app), + // use the _KDE_NET_WM_USER_CREATION_TIME trick. + // Otherwise, refuse activation of a window + // from already running application if this application + // is not the active one (unless focus stealing prevention is turned off). + Client* act = workspace()->mostRecentlyActivatedClient(); + if( act != NULL && !belongToSameApplication( act, this, true )) + { + bool first_window = true; + if( isTransient()) + { + if( act->hasTransient( this, true )) + ; // is transient for currently active window, even though it's not + // the same app (e.g. kcookiejar dialog) -> allow activation + else if( groupTransient() && + findClientInList( mainClients(), SameApplicationActiveHackPredicate( this )) == NULL ) + ; // standalone transient + else + first_window = false; + } + else + { + if( workspace()->findClient( SameApplicationActiveHackPredicate( this ))) + first_window = false; + } + // don't refuse if focus stealing prevention is turned off + if( !first_window && rules()->checkFSP( options->focusStealingPreventionLevel ) > 0 ) + { +// kdDebug( 1212 ) << "User timestamp, already exists:" << 0 << endl; + return 0; // refuse activation + } + } + // Creation time would just mess things up during session startup, + // as possibly many apps are started up at the same time. + // If there's no active window yet, no timestamp will be needed, + // as plain Workspace::allowClientActivation() will return true + // in such case. And if there's already active window, + // it's better not to activate the new one. + // Unless it was the active window at the time + // of session saving and there was no user interaction yet, + // this check will be done in manage(). + if( session ) + return -1U; + if( ignoreFocusStealing() && act != NULL ) + time = act->userTime(); + else + time = readUserCreationTime(); + } +// kdDebug( 1212 ) << "User timestamp, final:" << this << ":" << time << endl; + return time; + } + +Time Client::userTime() const + { + Time time = user_time; + if( time == 0 ) // doesn't want focus after showing + return 0; + assert( group() != NULL ); + if( time == -1U + || ( group()->userTime() != -1U + && timestampCompare( group()->userTime(), time ) > 0 )) + time = group()->userTime(); + return time; + } + +/*! + Sets the client's active state to \a act. + + This function does only change the visual appearance of the client, + it does not change the focus setting. Use + Workspace::activateClient() or Workspace::requestFocus() instead. + + If a client receives or looses the focus, it calls setActive() on + its own. + + */ +void Client::setActive( bool act, bool updateOpacity_) + { + if ( active == act ) + return; + active = act; + workspace()->setActiveClient( act ? this : NULL, Allowed ); + + if (updateOpacity_) updateOpacity(); + if (isModal() && transientFor()) + { + if (!act) transientFor()->updateOpacity(); + else if (!transientFor()->custom_opacity) transientFor()->setOpacity(options->translucentActiveWindows, options->activeWindowOpacity); + } + updateShadowSize(); + + if ( active ) + Notify::raise( Notify::Activate ); + + if( !active ) + cancelAutoRaise(); + + if( !active && shade_mode == ShadeActivated ) + setShade( ShadeNormal ); + + StackingUpdatesBlocker blocker( workspace()); + workspace()->updateClientLayer( this ); // active windows may get different layer + // TODO optimize? mainClients() may be a bit expensive + ClientList mainclients = mainClients(); + for( ClientList::ConstIterator it = mainclients.begin(); + it != mainclients.end(); + ++it ) + if( (*it)->isFullScreen()) // fullscreens go high even if their transient is active + workspace()->updateClientLayer( *it ); + if( decoration != NULL ) + decoration->activeChange(); + updateMouseGrab(); + updateUrgency(); // demand attention again if it's still urgent + } + +void Client::startupIdChanged() + { + KStartupInfoId asn_id; + KStartupInfoData asn_data; + bool asn_valid = workspace()->checkStartupNotification( window(), asn_id, asn_data ); + if( !asn_valid ) + return; + // If the ASN contains desktop, move it to the desktop, otherwise move it to the current + // desktop (since the new ASN should make the window act like if it's a new application + // launched). However don't affect the window's desktop if it's set to be on all desktops. + int desktop = workspace()->currentDesktop(); + if( asn_data.desktop() != 0 ) + desktop = asn_data.desktop(); + if( !isOnAllDesktops()) + workspace()->sendClientToDesktop( this, desktop, true ); + Time timestamp = asn_id.timestamp(); + if( timestamp == 0 && asn_data.timestamp() != -1U ) + timestamp = asn_data.timestamp(); + if( timestamp != 0 ) + { + bool activate = workspace()->allowClientActivation( this, timestamp ); + if( asn_data.desktop() != 0 && !isOnCurrentDesktop()) + activate = false; // it was started on different desktop than current one + if( activate ) + workspace()->activateClient( this ); + else + demandAttention(); + } + } + +void Client::updateUrgency() + { + if( urgency ) + demandAttention(); + } + +void Client::shortcutActivated() + { + workspace()->activateClient( this, true ); // force + } + +//**************************************** +// Group +//**************************************** + +void Group::startupIdChanged() + { + KStartupInfoId asn_id; + KStartupInfoData asn_data; + bool asn_valid = workspace()->checkStartupNotification( leader_wid, asn_id, asn_data ); + if( !asn_valid ) + return; + if( asn_id.timestamp() != 0 && user_time != -1U + && timestampCompare( asn_id.timestamp(), user_time ) > 0 ) + { + user_time = asn_id.timestamp(); + } + else if( asn_data.timestamp() != -1U && user_time != -1U + && timestampCompare( asn_data.timestamp(), user_time ) > 0 ) + { + user_time = asn_data.timestamp(); + } + } + +void Group::updateUserTime( Time time ) + { // copy of Client::updateUserTime + if( time == CurrentTime ) + time = qt_x_time; + if( time != -1U + && ( user_time == CurrentTime + || timestampCompare( time, user_time ) > 0 )) // time > user_time + user_time = time; + } + +} // namespace |