- LD_PRELOADing of libpreload.so in case the user selected [x] Force style

  settings in appearance
- Some code to NOT style some applications, based on the binary name (also
  selectable in appearance)

2 files changed, 72 insertions, 4 deletions

diff --git a/library/global.cpp b/library/global.cpp
index 9b3c51e..42c2729 100644
--- a/library/global.cpp
+++ b/library/global.cpp
@@ -511,201 +511,217 @@ void Global::setDocument( QWidget* receiver, const QString& document )
 }
 
 /*!
   \internal
 */
 bool Global::terminateBuiltin( const QString& n )
 {
     if (!builtin)
 	return FALSE;
     for (int i = 0; builtin[i].file; i++) {
 	if ( builtin[i].file == n ) {
 	    delete running[i];
 	    return TRUE;
 	}
     }
     return FALSE;
 }
 
 /*!
   \internal
 */
 void Global::terminate( const AppLnk* app )
 {
     //if ( terminateBuiltin(app->exec()) ) return; // maybe? haven't tried this
 
 #ifndef QT_NO_COP
     QCString channel = "QPE/Application/" + app->exec().utf8();
     if ( QCopChannel::isRegistered(channel) ) {
 	QCopEnvelope e(channel, "quit()");
     }
 #endif
 }
 
 /*!
   Low-level function to run command \a c.
 
   \warning Do not use this function. Use execute instead.
 
   \sa execute()
 */
 void Global::invoke(const QString &c)
 {
     // Convert the command line in to a list of arguments
     QStringList list = QStringList::split(QRegExp("  *"),c);
 
 #if !defined(QT_NO_COP)
     QString ap=list[0];
     // see if the application is already running
     // XXX should lock file /tmp/qcop-msg-ap
     if ( QCopChannel::isRegistered( ("QPE/Application/" + ap).latin1() ) ) {
 	// If the channel is already register, the app is already running, so show it.
 	{ QCopEnvelope env( ("QPE/Application/" + ap).latin1(), "raise()" ); }
                 
 	QCopEnvelope e("QPE/System", "notBusy(QString)" );
 	e << ap;
 	return;
     }
     // XXX should unlock file /tmp/qcop-msg-ap
     //see if it is being started
     if ( StartingAppList::isStarting( ap ) ) {
 	QCopEnvelope e("QPE/System", "notBusy(QString)" );
 	e << ap;
 	return;
     }
 
 #endif
 
 #ifdef QT_NO_QWS_MULTIPROCESS
     QMessageBox::warning( 0, "Error", "Could not find the application " + c, "Ok", 0, 0, 0, 1 );
 #else
 
     QStrList slist;
     unsigned int j;
     for ( j = 0; j < list.count(); j++ )
 	slist.append( list[j].utf8() );
 
     const char **args = new (const char *)[slist.count() + 1];
     for ( j = 0; j < slist.count(); j++ )
 	args[j] = slist.at(j);
     args[j] = NULL;
 
 #if !defined(QT_NO_COP)
     // an attempt to show a wait...
     // more logic should be used, but this will be fine for the moment...
     QCopEnvelope ( "QPE/System", "busy()" );
 #endif
 
 #ifdef HAVE_QUICKEXEC
     QString libexe = qpeDir()+"/binlib/lib"+args[0] + ".so";
     qDebug("libfile = %s", libexe.latin1() );
     if ( QFile::exists( libexe ) ) {
 	qDebug("calling quickexec %s", libexe.latin1() );
 	quickexecv( libexe.utf8().data(), (const char **)args );
     } else
 #endif
     {
+	char *oldpre = ::getenv ( "LD_PRELOAD" );
+    	
+	extern bool opie_block_style;
+    
+	QString newpre = QPEApplication::qpeDir ( ) + "/lib/libpreload.so";
+	if ( opie_block_style && QFile::exists ( newpre )) {
+	    if ( oldpre && oldpre [0] )
+		newpre = newpre + ":" + oldpre;
+	    ::setenv ( "LD_PRELOAD", newpre. latin1( ), 1 );
+	    qDebug ( "\nPRELOADING\n" );
+	}
+	    
 	if ( !::vfork() ) {
 	    for ( int fd = 3; fd < 100; fd++ )
 		::close( fd );
 	    ::setpgid( ::getpid(), ::getppid() );
 	    // Try bindir first, so that foo/bar works too
 	    ::execv( qpeDir()+"/bin/"+args[0], (char * const *)args );
 	    ::execvp( args[0], (char * const *)args );
 	    _exit( -1 );
 	}
+	if ( oldpre )
+	    ::setenv ( "LD_PRELOAD", oldpre, 1 );
+	else
+	    ::unsetenv ( "LD_PRELOAD" );
     }
     StartingAppList::add( list[0] );
 #endif //QT_NO_QWS_MULTIPROCESS
 }
 
 
 /*!
   Executes the application identfied by \a c, passing \a
   document if it isn't null.
 
   Note that a better approach might be to send a QCop message to the
   application's QPE/Application/\e{appname} channel.
 */
 void Global::execute( const QString &c, const QString& document )
 {
     if ( qApp->type() != QApplication::GuiServer ) {
 	// ask the server to do the work
 #if !defined(QT_NO_COP)
 	if ( document.isNull() ) {
 	    QCopEnvelope e( "QPE/System", "execute(QString)" );
 	    e << c;
 	} else {
 	    QCopEnvelope e( "QPE/System", "execute(QString,QString)" );
 	    e << c << document;
 	}
 #endif
 	return;
     }
 
     // Attempt to execute the app using a builtin class for the app first
     // else try and find it in the bin directory
     if (builtin) {
 	for (int i = 0; builtin[i].file; i++) {
 	    if ( builtin[i].file == c ) {
 		if ( running[i] ) {
 		    if ( !document.isNull() && builtin[i].documentary )
 			setDocument(running[i], document);
 		    running[i]->raise();
 		    running[i]->show();
 		    running[i]->setActiveWindow();
 		} else {
 		    running[i] = builtin[i].func( builtin[i].maximized );
 		}
 #ifndef QT_NO_COP
 		QCopEnvelope e("QPE/System", "notBusy(QString)" );
 		e << c; // that was quick ;-)
 #endif
 		return;
 	    }
 	}
     }
 
     //Global::invoke(c, document);
 
     // Convert the command line in to a list of arguments
     QStringList list = QStringList::split(QRegExp("  *"),c);
 
 #if !defined(QT_NO_COP)
     QString ap=list[0];
 
     qDebug("executing %s", ap.latin1() );
 
     /* if need be, sending a qcop message will result in an invoke, see
        preceeding function */
     invoke( ap );
     //{ QCopEnvelope env( ("QPE/Application/" + ap).latin1(), "raise()" ); }
     if ( !document.isEmpty() ) {
 	QCopEnvelope env( ("QPE/Application/" + ap).latin1(), "setDocument(QString)" );
 	env << document;
     }
 #endif
 }
 
 /*!
   Returns the string \a s with the characters '\', '"', and '$' quoted
   by a preceeding '\'.
 
   \sa stringQuote()
 */
 QString Global::shellQuote(const QString& s)
 {
     QString r="\"";
     for (int i=0; i<(int)s.length(); i++) {
 	char c = s[i].latin1();
 	switch (c) {
 	    case '\\': case '"': case '$':
 		r+="\\";
 	}
 	r += s[i];
     }
     r += "\"";
     return r;
 }
 
 /*!
   Returns the string \a s with the characters '\' and '"' quoted by a
diff --git a/library/qpeapplication.cpp b/library/qpeapplication.cpp
index efa65bc..a54fb20 100644
--- a/library/qpeapplication.cpp
+++ b/library/qpeapplication.cpp
@@ -805,236 +805,288 @@ bool QPEApplication::qwsEventFilter( QWSEvent * e )
 			if ( m == AlwaysOn )
 				Global::showInputMethod();
 		}
 	}
 	return QApplication::qwsEventFilter( e );
 }
 #endif
 
 /*!
   Destroys the QPEApplication.
 */
 QPEApplication::~QPEApplication()
 {
 	ungrabKeyboard();
 #if defined(Q_WS_QWS) && !defined(QT_NO_COP)
 	// Need to delete QCopChannels early, since the display will
 	// be gone by the time we get to ~QObject().
 	delete sysChannel;
 	delete pidChannel;
 #endif
 
 	delete d;
 }
 
 /*!
   Returns <tt>$OPIEDIR/</tt>.
 */
 QString QPEApplication::qpeDir()
 {
 	const char * base = getenv( "OPIEDIR" );
 	if ( base )
 		return QString( base ) + "/";
 
 	return QString( "../" );
 }
 
 /*!
   Returns the user's current Document directory. There is a trailing "/".
   .. well, it does now,, and there's no trailing '/'
 */
 QString QPEApplication::documentDir()
 {
 	const char* base = getenv( "HOME");
 	if ( base )
 		return QString( base ) + "/Documents";
 
 	return QString( "../Documents" );
 }
 
 static int deforient = -1;
 
 /*!
   \internal
 */
 int QPEApplication::defaultRotation()
 {
 	if ( deforient < 0 ) {
 		QString d = getenv( "QWS_DISPLAY" );
 		if ( d.contains( "Rot90" ) ) {
 			deforient = 90;
 		}
 		else if ( d.contains( "Rot180" ) ) {
 			deforient = 180;
 		}
 		else if ( d.contains( "Rot270" ) ) {
 			deforient = 270;
 		}
 		else {
 			deforient = 0;
 		}
 	}
 	return deforient;
 }
 
 /*!
   \internal
 */
 void QPEApplication::setDefaultRotation( int r )
 {
 	if ( qApp->type() == GuiServer ) {
 		deforient = r;
 		setenv( "QWS_DISPLAY", QString( "Transformed:Rot%1:0" ).arg( r ).latin1(), 1 );
 		Config config("qpe");
 		config.setGroup( "Rotation" );
 		config.writeEntry( "Screen", getenv("QWS_DISPLAY") );
 	}
 	else {
 #ifndef QT_NO_COP
 		{ QCopEnvelope e( "QPE/System", "setDefaultRotation(int)" );
 			e << r;
 		}
 #endif
 
 	}
 }
 
+// exported to libpreload.so
+bool opie_block_style = false;
+
 /*!
   \internal
 */
 void QPEApplication::applyStyle()
 {
 	Config config( "qpe" );
-
 	config.setGroup( "Appearance" );
-
+	
+	// don't block ourselves ...
+	opie_block_style = false;
+	
+	
+	static QString appname;
+	
+	if ( appname. isNull ( )) {
+		char src [32];
+		char dst [PATH_MAX + 1];
+		::sprintf ( src, "/proc/%d/exe", ::getpid ( ));
+		int l = ::readlink ( src, dst, PATH_MAX );
+		if ( l > 0 ) {
+			dst [l] = 0;
+			const char *b = ::strrchr ( dst, '/' );
+			appname = ( b ? b + 1 : dst );
+		}
+		else
+			appname = "";
+	}
+	
+	
+	QStringList ex = config. readListEntry ( "NoStyle", ';' );
+	int nostyle = 0;
+	for ( QStringList::Iterator it = ex. begin ( ); it != ex. end ( ); ++it ) {
+		if ( QRegExp (( *it ). mid ( 1 ), false, true ). find ( appname, 0 ) >= 0 ) {
+			nostyle = ( *it ). left ( 1 ). toInt ( 0, 32 );
+			break;
+		}
+	}
+	                                                
 	// Widget style
 	QString style = config.readEntry( "Style", "Light" );
-	internalSetStyle( style );
+	
+	// don't set a custom style
+	if ( nostyle & 0x01 )
+		style = "Light";
+	
+	internalSetStyle ( style );
 
 	// Colors
 	QColor bgcolor( config.readEntry( "Background", "#E5E1D5" ) );
 	QColor btncolor( config.readEntry( "Button", "#D6CDBB" ) );
 	QPalette pal( btncolor, bgcolor );
 	QString color = config.readEntry( "Highlight", "#800000" );
 	pal.setColor( QColorGroup::Highlight, QColor( color ) );
 	color = config.readEntry( "HighlightedText", "#FFFFFF" );
 	pal.setColor( QColorGroup::HighlightedText, QColor( color ) );
 	color = config.readEntry( "Text", "#000000" );
 	pal.setColor( QColorGroup::Text, QColor( color ) );
 	color = config.readEntry( "ButtonText", "#000000" );
 	pal.setColor( QPalette::Active, QColorGroup::ButtonText, QColor( color ) );
 	color = config.readEntry( "Base", "#FFFFFF" );
 	pal.setColor( QColorGroup::Base, QColor( color ) );
 
 	pal.setColor( QPalette::Disabled, QColorGroup::Text,
 	              pal.color( QPalette::Active, QColorGroup::Background ).dark() );
 
 	setPalette( pal, TRUE );
 
 	// Window Decoration
 	QString dec = config.readEntry( "Decoration", "Qtopia" );
+	
+	// don't set a custom deco
+	if ( nostyle & 0x04 )
+		dec = "";
+	
 	if ( dec != d->decorationName ) {
 		qwsSetDecoration( new QPEDecoration( dec ) );
 		d->decorationName = dec;
 	}
 
 	// Font
 	QString ff = config.readEntry( "FontFamily", font().family() );
 	int fs = config.readNumEntry( "FontSize", font().pointSize() );
+
+	// don't set a custom font	
+	if ( nostyle & 0x02 ) {
+		ff = "Helvetica";
+		fs = 10;
+	}
+	
 	setFont( QFont(ff, fs) );
+	
+	// revert to global blocking policy ...
+	opie_block_style = config. readBoolEntry ( "ForceStyle", false );
 }
 
 void QPEApplication::systemMessage( const QCString& msg, const QByteArray& data )
 {
 #ifdef Q_WS_QWS
 	QDataStream stream( data, IO_ReadOnly );
 	if ( msg == "applyStyle()" ) {
 		applyStyle();
 	}
 	else if ( msg == "setDefaultRotation(int)" ) {
 		if ( type() == GuiServer ) {
 			int r;
 			stream >> r;
 			setDefaultRotation( r );
 		}
 	}
 	else if ( msg == "shutdown()" ) {
 		if ( type() == GuiServer )
 			shutdown();
 	}
 	else if ( msg == "quit()" ) {
 		if ( type() != GuiServer )
 			tryQuit();
 	}
 	else if ( msg == "forceQuit()" ) {
 		if ( type() != GuiServer )
 			quit();
 	}
 	else if ( msg == "restart()" ) {
 		if ( type() == GuiServer )
 			restart();
 	}
 	else if ( msg == "grabKeyboard(QString)" ) {
 		QString who;
 		stream >> who;
 		if ( who.isEmpty() )
 			d->kbgrabber = 0;
 		else if ( who != d->appName )
 			d->kbgrabber = 1;
 		else
 			d->kbgrabber = 2;
 	}
 	else if ( msg == "language(QString)" ) {
 		if ( type() == GuiServer ) {
 			QString l;
 			stream >> l;
 			QString cl = getenv( "LANG" );
 			if ( cl != l ) {
 				if ( l.isNull() )
 					unsetenv( "LANG" );
 				else
 					setenv( "LANG", l.latin1(), 1 );
 				restart();
 			}
 		}
 	}
 	else if ( msg == "timeChange(QString)" ) {
 		QString t;
 		stream >> t;
 		if ( t.isNull() )
 			unsetenv( "TZ" );
 		else
 			setenv( "TZ", t.latin1(), 1 );
 		// emit the signal so everyone else knows...
 		emit timeChanged();
 	}
 	else if ( msg == "execute(QString)" ) {
 		if ( type() == GuiServer ) {
 			QString t;
 			stream >> t;
 			Global::execute( t );
 		}
 	}
 	else if ( msg == "execute(QString,QString)" ) {
 		if ( type() == GuiServer ) {
 			QString t, d;
 			stream >> t >> d;
 			Global::execute( t, d );
 		}
 	}
 	else if ( msg == "addAlarm(QDateTime,QCString,QCString,int)" ) {
 		if ( type() == GuiServer ) {
 			QDateTime when;
 			QCString channel, message;
 			int data;
 			stream >> when >> channel >> message >> data;
 			AlarmServer::addAlarm( when, channel, message, data );
 		}
 	}
 	else if ( msg == "deleteAlarm(QDateTime,QCString,QCString,int)" ) {
 		if ( type() == GuiServer ) {
 			QDateTime when;
 			QCString channel, message;
 			int data;
 			stream >> when >> channel >> message >> data;
 			AlarmServer::deleteAlarm( when, channel, message, data );
@@ -1230,193 +1282,193 @@ void QPEApplication::showMainDocumentWidget( QWidget* mw, bool nomaximize )
 */
 void QPEApplication::setKeepRunning()
 {
 	if ( qApp && qApp->inherits( "QPEApplication" ) ) {
 		QPEApplication * qpeApp = ( QPEApplication* ) qApp;
 		qpeApp->d->keep_running = TRUE;
 	}
 }
 
 /*!
   Returns TRUE if the application will quit after processing the
   current list of qcop messages; otherwise returns FALSE.
  
   \sa setKeepRunning()
 */
 bool QPEApplication::keepRunning() const
 {
 	return d->keep_running;
 }
 
 /*!
   \internal
 */
 void QPEApplication::internalSetStyle( const QString &style )
 {
 #if QT_VERSION >= 300
 	if ( style == "QPE" ) {
 		setStyle( new QPEStyle );
 	}
 	else {
 		QStyle *s = QStyleFactory::create( style );
 		if ( s )
 			setStyle( s );
 	}
 #else
 	if ( style == "Windows" ) {
 		setStyle( new QWindowsStyle );
 	}
 	else if ( style == "QPE" ) {
 		setStyle( new QPEStyle );
 	}
 	else if ( style == "Light" ) {
 		setStyle( new LightStyle );
 	}
 #ifndef QT_NO_STYLE_PLATINUM
 	else if ( style == "Platinum" ) {
 		setStyle( new QPlatinumStyle );
 	}
 #endif
 #ifndef QT_NO_STYLE_MOTIF
 	else if ( style == "Motif" ) {
 		setStyle( new QMotifStyle );
 	}
 #endif
 #ifndef QT_NO_STYLE_MOTIFPLUS
 	else if ( style == "MotifPlus" ) {
 		setStyle( new QMotifPlusStyle );
 	}
 #endif
 
 	else {
 		QStyle *sty = 0;
 		QString path = QPEApplication::qpeDir ( ) + "/plugins/styles/";
 
 		if ( style. find ( ".so" ) > 0 )
 			path += style;
 		else
 			path = path + "lib" + style. lower ( ) + ".so"; // compatibility
 
 		static QLibrary *lastlib = 0;
 		static StyleInterface *lastiface = 0;
 
 		QLibrary *lib = new QLibrary ( path );
 		StyleInterface *iface = 0;
 
 		if (( lib-> queryInterface ( IID_Style, ( QUnknownInterface ** ) &iface ) == QS_OK ) && iface )
 			sty = iface-> style ( );
 
 		if ( sty ) {
 			setStyle ( sty );
 
 			if ( lastiface )
 				lastiface-> release ( );
 			lastiface = iface;
 
 			if ( lastlib ) {
 				lastlib-> unload ( );
 				delete lastlib;
 			}
 			lastlib = lib;
 		}
 		else {
 			if ( iface )
 				iface-> release ( );
 			delete lib;
 
-			setStyle ( new QPEStyle ( ));
+			setStyle ( new LightStyle ( ));
 		}
 	}
 #endif
 }
 
 /*!
   \internal
 */
 void QPEApplication::prepareForTermination( bool willrestart )
 {
 	if ( willrestart ) {
 		// Draw a big wait icon, the image can be altered in later revisions
 		//  QWidget *d = QApplication::desktop();
 		QImage img = Resource::loadImage( "launcher/new_wait" );
 		QPixmap pix;
 		pix.convertFromImage( img.smoothScale( 1 * img.width(), 1 * img.height() ) );
 		QLabel *lblWait = new QLabel( 0, "wait hack!", QWidget::WStyle_Customize |
 		                              QWidget::WStyle_NoBorder | QWidget::WStyle_Tool );
 		lblWait->setPixmap( pix );
 		lblWait->setAlignment( QWidget::AlignCenter );
 		lblWait->show();
 		lblWait->showMaximized();
 	}
 #ifndef SINGLE_APP
 	{ QCopEnvelope envelope( "QPE/System", "forceQuit()" );
 	}
 	processEvents(); // ensure the message goes out.
 	sleep( 1 ); // You have 1 second to comply.
 #endif
 }
 
 /*!
   \internal
 */
 void QPEApplication::shutdown()
 {
 	// Implement in server's QPEApplication subclass
 }
 
 /*!
   \internal
 */
 void QPEApplication::restart()
 {
 	// Implement in server's QPEApplication subclass
 }
 
 static QPtrDict<void>* stylusDict = 0;
 static void createDict()
 {
 	if ( !stylusDict )
 		stylusDict = new QPtrDict<void>;
 }
 
 /*!
   Returns the current StylusMode for widget \a w.
  
   \sa setStylusOperation() StylusMode
 */
 QPEApplication::StylusMode QPEApplication::stylusOperation( QWidget* w )
 {
 	if ( stylusDict )
 		return ( StylusMode ) ( int ) stylusDict->find( w );
 	return LeftOnly;
 }
 
 /*!
     \enum QPEApplication::StylusMode
  
     \value LeftOnly the stylus only generates LeftButton
                        events (the default).
     \value RightOnHold the stylus generates RightButton events
                        if the user uses the press-and-hold gesture.
  
     \sa setStylusOperation() stylusOperation()
 */
 
 /*!
   Causes widget \a w to receive mouse events according to the stylus
   \a mode.
  
   \sa stylusOperation() StylusMode
 */
 void QPEApplication::setStylusOperation( QWidget * w, StylusMode mode )
 {
 	createDict();
 	if ( mode == LeftOnly ) {
 		stylusDict->remove
 		( w );
 		w->removeEventFilter( qApp );
 	}
 	else {
 		stylusDict->insert( w, ( void* ) mode );
 		connect( w, SIGNAL( destroyed() ), qApp, SLOT( removeSenderFromStylusDict() ) );
 		w->installEventFilter( qApp );
 	}