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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "VCLKDEApplication.hxx"
#define Region QtXRegion
#include <kapplication.h>
#include <klocale.h>
#include <kaboutdata.h>
#include <kcmdlineargs.h>
#include <kstartupinfo.h>
#include <qabstracteventdispatcher.h>
#include <qclipboard.h>
#include <qthread.h>
#undef Region
#include "KDEXLib.hxx"
#include <unx/i18n_im.hxx>
#include <unx/i18n_xkb.hxx>
#include <unx/saldata.hxx>
#include <osl/process.h>
#include "KDESalDisplay.hxx"
#if OSL_DEBUG_LEVEL > 1
#include <stdio.h>
#endif
#include <stdio.h>
#if QT_VERSION >= QT_VERSION_CHECK( 4, 8, 1 )
#define QT_UNIX_EVENT_LOOP_SUPPORT
#ifdef KDE_HAVE_GLIB
#define GLIB_EVENT_LOOP_SUPPORT
#endif
#endif
#ifdef GLIB_EVENT_LOOP_SUPPORT
#include <glib-2.0/glib.h>
#endif
KDEXLib::KDEXLib() :
SalXLib(), m_bStartupDone(false), m_pApplication(0),
m_pFreeCmdLineArgs(0), m_pAppCmdLineArgs(0), m_nFakeCmdLineArgs( 0 ),
eventLoopType( LibreOfficeEventLoop )
{
// the timers created here means they belong to the main thread
connect( &timeoutTimer, SIGNAL( timeout()), this, SLOT( timeoutActivated()));
connect( &userEventTimer, SIGNAL( timeout()), this, SLOT( userEventActivated()));
// QTimer::start() can be called only in its (here main) thread, so this will
// forward between threads if needed
connect( this, SIGNAL( startTimeoutTimerSignal()), this, SLOT( startTimeoutTimer()), Qt::QueuedConnection );
connect( this, SIGNAL( startUserEventTimerSignal()), this, SLOT( startUserEventTimer()), Qt::QueuedConnection );
// this one needs to be blocking, so that the handling in main thread is processed before
// the thread emitting the signal continues
connect( this, SIGNAL( processYieldSignal( bool, bool )), this, SLOT( processYield( bool, bool )),
Qt::BlockingQueuedConnection );
}
KDEXLib::~KDEXLib()
{
delete m_pApplication;
// free the faked cmdline arguments no longer needed by KApplication
for( int i = 0; i < m_nFakeCmdLineArgs; i++ )
{
free( m_pFreeCmdLineArgs[i] );
}
delete [] m_pFreeCmdLineArgs;
delete [] m_pAppCmdLineArgs;
}
void KDEXLib::Init()
{
SalI18N_InputMethod* pInputMethod = new SalI18N_InputMethod;
pInputMethod->SetLocale();
XrmInitialize();
KAboutData *kAboutData = new KAboutData("LibreOffice",
"kdelibs4",
ki18n( "LibreOffice" ),
"3.3.0",
ki18n( "LibreOffice with KDE Native Widget Support." ),
KAboutData::License_LGPL,
ki18n( "Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Novell, Inc"),
ki18n( "LibreOffice is an office suite.\n" ),
"http://libreoffice.org",
"libreoffice@lists.freedesktop.org" );
kAboutData->addAuthor( ki18n( "Jan Holesovsky" ),
ki18n( "Original author and maintainer of the KDE NWF." ),
"kendy@artax.karlin.mff.cuni.cz",
"http://artax.karlin.mff.cuni.cz/~kendy" );
kAboutData->addAuthor( ki18n("Roman Shtylman"),
ki18n( "Porting to KDE 4." ),
"shtylman@gmail.com", "http://shtylman.com" );
kAboutData->addAuthor( ki18n("Eric Bischoff"),
ki18n( "Accessibility fixes, porting to KDE 4." ),
"bischoff@kde.org" );
//kAboutData->setProgramIconName("OpenOffice");
m_nFakeCmdLineArgs = 2;
sal_uInt16 nIdx;
int nParams = osl_getCommandArgCount();
rtl::OString aDisplay;
rtl::OUString aParam, aBin;
for ( nIdx = 0; nIdx < nParams; ++nIdx )
{
osl_getCommandArg( nIdx, &aParam.pData );
if ( !m_pFreeCmdLineArgs && aParam.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "-display" ) ) && nIdx + 1 < nParams )
{
osl_getCommandArg( nIdx + 1, &aParam.pData );
aDisplay = rtl::OUStringToOString( aParam, osl_getThreadTextEncoding() );
m_pFreeCmdLineArgs = new char*[ m_nFakeCmdLineArgs + 2 ];
m_pFreeCmdLineArgs[ m_nFakeCmdLineArgs + 0 ] = strdup( "-display" );
m_pFreeCmdLineArgs[ m_nFakeCmdLineArgs + 1 ] = strdup( aDisplay.getStr() );
m_nFakeCmdLineArgs += 2;
}
}
if ( !m_pFreeCmdLineArgs )
m_pFreeCmdLineArgs = new char*[ m_nFakeCmdLineArgs ];
osl_getExecutableFile( &aParam.pData );
osl_getSystemPathFromFileURL( aParam.pData, &aBin.pData );
rtl::OString aExec = rtl::OUStringToOString( aBin, osl_getThreadTextEncoding() );
m_pFreeCmdLineArgs[0] = strdup( aExec.getStr() );
m_pFreeCmdLineArgs[1] = strdup( "--nocrashhandler" );
// make a copy of the string list for freeing it since
// KApplication manipulates the pointers inside the argument vector
// note: KApplication bad !
m_pAppCmdLineArgs = new char*[ m_nFakeCmdLineArgs ];
for( int i = 0; i < m_nFakeCmdLineArgs; i++ )
m_pAppCmdLineArgs[i] = m_pFreeCmdLineArgs[i];
KCmdLineArgs::init( m_nFakeCmdLineArgs, m_pAppCmdLineArgs, kAboutData );
m_pApplication = new VCLKDEApplication();
kapp->disableSessionManagement();
KApplication::setQuitOnLastWindowClosed(false);
setupEventLoop();
Display* pDisp = QX11Info::display();
SalKDEDisplay *pSalDisplay = new SalKDEDisplay(pDisp);
pInputMethod->CreateMethod( pDisp );
pSalDisplay->SetInputMethod( pInputMethod );
PushXErrorLevel( true );
SalI18N_KeyboardExtension *pKbdExtension = new SalI18N_KeyboardExtension( pDisp );
XSync( pDisp, False );
pKbdExtension->UseExtension( ! HasXErrorOccurred() );
PopXErrorLevel();
pSalDisplay->SetKbdExtension( pKbdExtension );
}
// When we use Qt event loop, it can actually use its own event loop handling, or wrap
// the Glib event loop (the latter is the default is Qt is built with Glib support
// and $QT_NO_GLIB is not set). We mostly do not care which one it is, as QSocketNotifier's
// and QTimer's can handle it transparently, but it matters for the SolarMutex, which
// needs to be unlocked shortly before entering the main sleep (e.g. select()) and locked
// immediatelly after. So we need to know which event loop implementation is used and
// hook accordingly.
#ifdef GLIB_EVENT_LOOP_SUPPORT
static GPollFunc old_gpoll = NULL;
static gint gpoll_wrapper( GPollFD*, guint, gint );
#endif
#ifdef QT_UNIX_EVENT_LOOP_SUPPORT
static int (*qt_select)(int nfds, fd_set *fdread, fd_set *fdwrite, fd_set *fdexcept,
const struct timeval *orig_timeout);
static int lo_select(int nfds, fd_set *fdread, fd_set *fdwrite, fd_set *fdexcept,
const struct timeval *orig_timeout);
#endif
static bool ( *old_qt_event_filter )( void* );
static bool qt_event_filter( void* m )
{
if( old_qt_event_filter != NULL && old_qt_event_filter( m ))
return true;
if( SalKDEDisplay::self() && SalKDEDisplay::self()->checkDirectInputEvent( static_cast< XEvent* >( m )))
return true;
return false;
}
void KDEXLib::setupEventLoop()
{
old_qt_event_filter = QAbstractEventDispatcher::instance()->setEventFilter( qt_event_filter );
#ifdef GLIB_EVENT_LOOP_SUPPORT
// Glib is simple, it has g_main_context_set_poll_func() for wrapping the sleep call.
// The catch is that Qt has a bug that allows triggering timers even when they should
// not be, leading to crashes caused by QClipboard re-entering the event loop.
// (http://bugreports.qt.nokia.com/browse/QTBUG-14461), so enable only with Qt>=4.8.0,
// where it is(?) fixed.
if( QAbstractEventDispatcher::instance()->inherits( "QEventDispatcherGlib" ))
{
eventLoopType = GlibEventLoop;
old_gpoll = g_main_context_get_poll_func( NULL );
g_main_context_set_poll_func( NULL, gpoll_wrapper );
// set QClipboard to use event loop, otherwise the main thread will hold
// SolarMutex locked, which will prevent the clipboard thread from answering
m_pApplication->clipboard()->setProperty( "useEventLoopWhenWaiting", true );
return;
}
#endif
#ifdef QT_UNIX_EVENT_LOOP_SUPPORT
// When Qt does not use Glib support, it uses its own Unix event dispatcher.
// That one has aboutToBlock() and awake() signals, but they are broken (either
// functionality or semantics), as e.g. awake() is not emitted right after the dispatcher
// is woken up from sleep again, but only later (which is too late for re-acquiring SolarMutex).
// This should be fixed with Qt-4.8.0 (?) where support for adding custom select() function
// has been added too (http://bugreports.qt.nokia.com/browse/QTBUG-16934).
if( QAbstractEventDispatcher::instance()->inherits( "QEventDispatcherUNIX" ))
{
eventLoopType = QtUnixEventLoop;
QInternal::callFunction( QInternal::GetUnixSelectFunction, reinterpret_cast< void** >( &qt_select ));
QInternal::callFunction( QInternal::SetUnixSelectFunction, reinterpret_cast< void** >( lo_select ));
// set QClipboard to use event loop, otherwise the main thread will hold
// SolarMutex locked, which will prevent the clipboard thread from answering
m_pApplication->clipboard()->setProperty( "useEventLoopWhenWaiting", true );
return;
}
#endif
}
#ifdef GLIB_EVENT_LOOP_SUPPORT
gint gpoll_wrapper( GPollFD* ufds, guint nfds, gint timeout )
{
YieldMutexReleaser release; // release YieldMutex (and re-acquire at block end)
return old_gpoll( ufds, nfds, timeout );
}
#endif
#ifdef QT_UNIX_EVENT_LOOP_SUPPORT
int lo_select(int nfds, fd_set *fdread, fd_set *fdwrite, fd_set *fdexcept,
const struct timeval *orig_timeout)
{
YieldMutexReleaser release; // release YieldMutex (and re-acquire at block end)
return qt_select( nfds, fdread, fdwrite, fdexcept, orig_timeout );
}
#endif
void KDEXLib::Insert( int fd, void* data, YieldFunc pending, YieldFunc queued, YieldFunc handle )
{
if( eventLoopType == LibreOfficeEventLoop )
return SalXLib::Insert( fd, data, pending, queued, handle );
SocketData sdata;
sdata.data = data;
sdata.pending = pending;
sdata.queued = queued;
sdata.handle = handle;
// qApp as parent to make sure it uses the main thread event loop
sdata.notifier = new QSocketNotifier( fd, QSocketNotifier::Read, qApp );
connect( sdata.notifier, SIGNAL( activated( int )), this, SLOT( socketNotifierActivated( int )));
socketData[ fd ] = sdata;
}
void KDEXLib::Remove( int fd )
{
if( eventLoopType == LibreOfficeEventLoop )
return SalXLib::Remove( fd );
SocketData sdata = socketData.take( fd );// according to SalXLib::Remove() this should be safe
delete sdata.notifier;
}
void KDEXLib::socketNotifierActivated( int fd )
{
const SocketData& sdata = socketData[ fd ];
sdata.handle( fd, sdata.data );
}
void KDEXLib::Yield( bool bWait, bool bHandleAllCurrentEvents )
{
if( eventLoopType == LibreOfficeEventLoop )
{
if( qApp->thread() == QThread::currentThread())
{
// even if we use the LO event loop, still process Qt's events,
// otherwise they can remain unhandled for quite a long while
processYield( false, bHandleAllCurrentEvents );
}
return SalXLib::Yield( bWait, bHandleAllCurrentEvents );
}
// if we are the main thread (which is where the event processing is done),
// good, just do it
if( qApp->thread() == QThread::currentThread())
processYield( bWait, bHandleAllCurrentEvents );
else
{ // if this deadlocks, event processing needs to go into a separate thread
// or some other solution needs to be found
emit processYieldSignal( bWait, bHandleAllCurrentEvents );
}
}
bool KDEXLib::processYield( bool bWait, bool bHandleAllCurrentEvents )
{
QAbstractEventDispatcher* dispatcher = QAbstractEventDispatcher::instance( qApp->thread());
bool wasEvent = false;
for( int cnt = bHandleAllCurrentEvents ? 100 : 1;
cnt > 0;
--cnt )
{
if( !dispatcher->processEvents( QEventLoop::AllEvents ))
break;
wasEvent = true;
}
if( bWait && !wasEvent )
wasEvent = dispatcher->processEvents( QEventLoop::WaitForMoreEvents );
return wasEvent;
}
void KDEXLib::StartTimer( sal_uLong nMS )
{
if( eventLoopType == LibreOfficeEventLoop )
return SalXLib::StartTimer( nMS );
timeoutTimer.setInterval( nMS );
// QTimer's can be started only in their thread (main thread here)
if( qApp->thread() == QThread::currentThread())
startTimeoutTimer();
else
emit startTimeoutTimerSignal();
}
void KDEXLib::startTimeoutTimer()
{
timeoutTimer.start();
}
void KDEXLib::StopTimer()
{
if( eventLoopType == LibreOfficeEventLoop )
return SalXLib::StopTimer();
timeoutTimer.stop();
}
void KDEXLib::timeoutActivated()
{
GetX11SalData()->Timeout();
// QTimer is not single shot, so will be restarted immediatelly
}
void KDEXLib::Wakeup()
{
if( eventLoopType == LibreOfficeEventLoop )
return SalXLib::Wakeup();
QAbstractEventDispatcher::instance( qApp->thread())->wakeUp(); // main thread event loop
}
void KDEXLib::PostUserEvent()
{
if( eventLoopType == LibreOfficeEventLoop )
return SalXLib::PostUserEvent();
if( qApp->thread() == QThread::currentThread())
startUserEventTimer();
else
emit startUserEventTimerSignal();
}
void KDEXLib::startUserEventTimer()
{
userEventTimer.start( 0 );
}
void KDEXLib::userEventActivated()
{
SalKDEDisplay::self()->EventGuardAcquire();
if( SalKDEDisplay::self()->userEventsCount() <= 1 )
userEventTimer.stop();
SalKDEDisplay::self()->EventGuardRelease();
SalKDEDisplay::self()->DispatchInternalEvent();
// QTimer is not single shot, so will be restarted immediatelly
}
void KDEXLib::doStartup()
{
if( ! m_bStartupDone )
{
KStartupInfo::appStarted();
m_bStartupDone = true;
#if OSL_DEBUG_LEVEL > 1
fprintf( stderr, "called KStartupInfo::appStarted()\n" );
#endif
}
}
#include "KDEXLib.moc"
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|