1 /*---------------------------------------------------------------------\
3 | __ __ ____ _____ ____ |
4 | \ \ / /_ _/ ___|_ _|___ \ |
5 | \ V / _` \___ \ | | __) | |
6 | | | (_| |___) || | / __/ |
7 | |_|\__,_|____/ |_| |_____| |
11 \----------------------------------------------------------------------/
15 Author: Stefan Hundhammer <sh@suse.de>
19 #include <rpc/types.h> // MAXHOSTNAMELEN
24 #include <QMessageBox>
25 #include <QSocketNotifier>
26 #include <QStackedWidget>
27 #include <QDesktopWidget>
29 #include <QVBoxLayout>
31 #include <ycp/YCPTerm.h>
32 #include <ycp/YCPCode.h>
34 #define y2log_component "qt-ui"
35 #include <ycp/y2log.h>
38 #include "YQApplication.h"
39 #include "YQWidgetFactory.h"
40 #include "YQOptionalWidgetFactory.h"
42 #include "YUISymbols.h"
47 #include "QY2Settings.h"
49 #define PIXMAP_DIR THEMEDIR "/openSUSE/wizard/"
50 #define BUSY_CURSOR_TIMEOUT 200 // milliseconds
54 static void qMessageHandler( QtMsgType type, const char * msg );
56 YQUI::YQUI( int argc, char **argv, bool with_threads, const char * macro_file )
61 , _wm_close_blocked( false )
62 , _auto_activate_dialogs( true )
64 y2milestone( "YQUI constructor start" );
70 _decorate_toplevel_window = true;
71 _usingVisionImpairedPalette = false;
72 _leftHandedMouse = false;
73 _askedForLeftHandedMouse = false;
74 screenShotNameTemplate = "";
77 qInstallMsgHandler( qMessageHandler );
79 // Copy command line arguments for QApplication
81 _ui_argv = (char **) malloc( (argc+1) * sizeof( const char * ) );
84 for ( int i=0; i < argc; i++ )
85 _ui_argv[i+1] = strdup( argv[i] );
87 _ui_argv[0] = strdup( "YaST2" );
90 topmostConstructorHasFinished();
99 Qt thinks the first QObject defines the main thread, but
100 the main thread in this case is the ycp thread, not UI
102 //extern void qt_set_current_thread_to_main_thread();
103 //qt_set_current_thread_to_main_thread();
107 new QApplication( _ui_argc, _ui_argv);
108 _busy_cursor_timer = new QTimer( qApp );
109 _busy_cursor_timer->setSingleShot( true );
111 _user_input_timer.setSingleShot( true );
113 _normalPalette = qApp->palette();
115 // Qt keeps track to a global QApplication in qApp.
118 qApp->installEventFilter( this );
119 processCommandLineArgs( _ui_argc, _ui_argv );
122 qApp->setStyleSheet( "file:///" PIXMAP_DIR "/style.qss" );
124 // Event loop object. Required since a YaST2 UI needs to react to commands
125 // from the YCP command stream as well as to X11 / Qt events.
126 _eventLoop = new QEventLoop( qApp );
127 _do_exit_loop = false;
129 // Create main window for `opt(`defaultsize) dialogs.
131 // We have to use something else than QWidgetStack since QWidgetStack
132 // doesn't accept a WFlags arg which we badly need here.
134 Qt::WFlags wflags = Qt::Window;
136 if ( ! _decorate_toplevel_window )
138 y2debug( "Suppressing WM decorations for toplevel window" );
139 wflags |= Qt::FramelessWindowHint;
142 _main_win = new QWidget( 0, wflags ); // parent, wflags
143 _main_win->setFocusPolicy( Qt::StrongFocus );
144 _main_win->setObjectName( "main_window" );
146 // Create widget stack for `opt(`defaultsize) dialogs
147 QVBoxLayout *vbox = new QVBoxLayout( _main_win );
148 vbox->setSpacing( 0 );
149 vbox->setMargin( 0 );
151 _widget_stack = new QStackedWidget( _main_win );
152 _widget_stack->setFocusPolicy( Qt::StrongFocus );
153 vbox->addWidget( _widget_stack );
155 _main_win->installEventFilter( this );
158 _main_win->resize( _default_size );
160 if ( _fullscreen || ! _have_wm )
161 _main_win->move( 0, 0 );
166 QString title( "YaST2" );
167 char hostname[ MAXHOSTNAMELEN+1 ];
169 if ( gethostname( hostname, sizeof( hostname )-1 ) == 0 )
171 hostname[ sizeof( hostname ) -1 ] = '\0'; // make sure it's terminated
173 if ( strlen( hostname ) > 0 )
175 if ( ( strcmp( hostname, "(none)" ) != 0 &&
176 strcmp( hostname, "linux" ) != 0 ) )
184 _main_win->setWindowTitle( title );
187 // Hide the main window for now. The first call to UI::OpenDialog() on an
188 // `opt(`defaultSize) dialog will trigger a showDialog() call that shows
189 // the main window - there is nothing to display yet.
194 // Ugly hack as a workaround of bug #121872 (Segfault at program exit
195 // if no Qt style defined):
197 // Qt does not seem to be designed for use in plugin libs. It loads some
198 // add-on libs dynamically with dlopen() and unloads them at program exit
199 // (QGPluginManager). Unfortunately, since they all depend on the Qt master
200 // lib (libqt-mt) themselves, when they are unloading the last call to
201 // dlclose() for them causes the last reference to libqt-mt to vanish as
202 // well. Since libqt-mt is already in the process of destruction there is
203 // no more reference from the caller of libqt-mt, and the GLIBC decides
204 // that libqt-mt is not needed any more (zero references) and unmaps
205 // libqt-mt. When the static destructor of libqt-mt that triggered the
206 // cleanup in QGPluginManager returns, the code it is to return to is
207 // already unmapped, causing a segfault.
209 // Workaround: Keep one more reference to libqt-mt open - dlopen() it here
210 // and make sure there is no corresponding dlclose().
212 QString qt_lib_name = QString( QTLIBDIR "/libQtGui.so.%1" ).arg( QT_VERSION >> 16 );;
213 void * qt_lib = dlopen( qt_lib_name.toUtf8().constData(), RTLD_GLOBAL );
214 y2milestone( "Forcing %s open %s", qt_lib_name.toUtf8().constData(),
215 qt_lib ? "successful" : "failed" );
219 qApp->setFont( yqApp()->currentFont() );
222 connect( & _user_input_timer, SIGNAL( timeout() ),
223 this, SLOT ( userInputTimeout() ) );
225 connect( _busy_cursor_timer, SIGNAL( timeout() ),
226 this, SLOT ( busyCursor() ) );
230 // playMacro( macro_file );
232 y2milestone( "YQUI constructor end %ld", QThread::currentThreadId () );
233 qApp->processEvents();
240 return static_cast<YQApplication *>( app() );
244 void YQUI::processCommandLineArgs( int argc, char **argv )
248 for( int i=0; i < argc; i++ )
250 QString opt = argv[i];
252 y2milestone ("Qt argument: %s", argv[i]);
254 // Normalize command line option - accept "--xy" as well as "-xy"
256 if ( opt.startsWith( "--" ) )
259 if ( opt == QString( "-no-wm" ) ) _have_wm = false;
260 else if ( opt == QString( "-fullscreen" ) ) _fullscreen = true;
261 else if ( opt == QString( "-noborder" ) ) _decorate_toplevel_window = false;
262 else if ( opt == QString( "-auto-font" ) ) yqApp()->setAutoFonts( true );
263 else if ( opt == QString( "-auto-fonts" ) ) yqApp()->setAutoFonts( true );
264 // --macro is handled by YUI_component
265 else if ( opt == QString( "-help" ) )
268 "Command line options for the YaST2 Qt UI:\n"
270 "--nothreads run without additional UI threads\n"
271 "--no-wm assume no window manager is running\n"
272 "--fullscreen use full screen for `opt(`defaultsize) dialogs\n"
273 "--noborder no window manager border for `opt(`defaultsize) dialogs\n"
274 "--auto-fonts automatically pick fonts, disregard Qt standard settings\n"
275 "--help this help text\n"
277 "--macro <macro-file> play a macro right on startup\n"
279 "-no-wm, -noborder etc. are accepted as well as --no-wm, --noborder\n"
280 "to maintain backwards compatibility.\n"
289 // Qt handles command line option "-reverse" for Arabic / Hebrew
296 y2debug("Closing down Qt UI.");
300 // Intentionally NOT calling dlclose() to libqt-mt
301 // (see constructor for explanation)
307 YQUI::createWidgetFactory()
309 YQWidgetFactory * factory = new YQWidgetFactory();
310 YUI_CHECK_NEW( factory );
317 YOptionalWidgetFactory *
318 YQUI::createOptionalWidgetFactory()
320 YQOptionalWidgetFactory * factory = new YQOptionalWidgetFactory();
321 YUI_CHECK_NEW( factory );
328 YQUI::createApplication()
330 YQApplication * app = new YQApplication();
331 YUI_CHECK_NEW( app );
337 void YQUI::calcDefaultSize()
339 QSize primaryScreenSize = qApp->desktop()->screenGeometry( qApp->desktop()->primaryScreen() ).size();
340 QSize availableSize = qApp->desktop()->availableGeometry().size();
344 _default_size = availableSize;
346 y2milestone( "-fullscreen: using %dx%d for `opt(`defaultsize)",
347 _default_size.width(), _default_size.height() );
351 // Get _default_size via -geometry command line option (if set)
353 // NOTE not needed in qt4
354 // QWidget * dummy = new QWidget();
356 // qApp->setMainWidget( dummy );
357 // _default_size = dummy->size();
360 // Set min defaultsize or figure one out if -geometry was not used
362 if ( _default_size.width() < 800 ||
363 _default_size.height() < 600 )
365 if ( primaryScreenSize.width() >= 1024 && primaryScreenSize.height() >= 768 )
367 // Scale down to 70% of screen size
369 _default_size.setWidth ( max( (int) (availableSize.width() * 0.7), 800 ) );
370 _default_size.setHeight( max( (int) (availableSize.height() * 0.7), 600 ) );
374 _default_size = availableSize;
379 y2milestone( "Forced size (via -geometry): %dx%d",
380 _default_size.width(), _default_size.height() );
385 _default_size = primaryScreenSize;
389 y2milestone( "Default size: %dx%d", _default_size.width(), _default_size.height() );
394 void YQUI::internalError( const char * msg )
397 int button = QMessageBox::critical( 0, "YaST2 Internal Error", msg,
398 QMessageBox::Abort | QMessageBox::Default,
402 if ( button == QMessageBox::Abort )
407 // exit() leaves a process running (WFM?), so this really seems to be
408 // the only way to make sure we are really going down.
412 void YQUI::idleLoop( int fd_ycp )
416 // runs in main thread
417 _eventLoop->wakeUp();
422 FD_SET(fd_ycp, &rfds);
426 int retval = select(fd_ycp+1, &rfds, NULL, NULL, NULL);
433 void YQUI::sendEvent( YEvent * event )
437 _event_handler.sendEvent( event );
440 _eventLoop->exit( 1 );
445 YEvent * YQUI::userInput( unsigned long timeout_millisec )
449 _event_handler.blockEvents( false );
450 _eventLoop->wakeUp();
453 //y2milestone( "userInput %ld", timeout_millisec );
456 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
458 if ( _user_input_timer.isActive() )
459 _user_input_timer.stop();
463 if ( timeout_millisec > 0 )
464 _user_input_timer.start( timeout_millisec ); // single shot
466 dialog->activate( true );
468 if ( qApp->focusWidget() )
469 qApp->focusWidget()->setFocus();
472 _do_exit_loop = true; // should exit_loop() be called in sendEvent()?
474 _do_exit_loop = false;
476 event = _event_handler.consumePendingEvent();
477 dialog->activate( false );
479 // Display a busy cursor, but only if there is no other activity within
480 // BUSY_CURSOR_TIMEOUT milliseconds (avoid cursor flicker)
482 _busy_cursor_timer->start( BUSY_CURSOR_TIMEOUT ); // single shot
485 if ( _user_input_timer.isActive() )
486 _user_input_timer.stop();
492 YEvent * YQUI::pollInput()
496 if ( _user_input_timer.isActive() )
497 _user_input_timer.stop();
499 if ( ! pendingEvent() )
501 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
505 dialog->activate( true );
506 //qApp->processEvents();
507 event = _event_handler.consumePendingEvent();
508 dialog->activate( false );
512 if ( pendingEvent() )
513 event = _event_handler.consumePendingEvent();
519 void YQUI::userInputTimeout()
521 if ( ! pendingEvent() )
522 sendEvent( new YTimeoutEvent() );
528 YDialog * YQUI::createDialog( YWidgetOpt & opt )
532 y2milestone( "createDialog %ld", QThread::currentThreadId () );
533 bool has_defaultsize = opt.hasDefaultSize.value();
534 QWidget * qt_parent =
535 has_defaultsize ? _widget_stack : _main_win;
537 // FIXME: Probably obsolete
538 if ( ! has_defaultsize && ! _popup_stack.empty() )
539 qt_parent = _popup_stack.back();
541 YQDialog * dialog = new YQDialog( opt, qt_parent, has_defaultsize );
542 Q_CHECK_PTR( dialog );
544 if ( ! has_defaultsize )
545 _popup_stack.push_back( (QWidget *) dialog->widgetRep() );
552 void YQUI::showDialog( YDialog * dialog )
554 QWidget * qw = (QWidget *) dialog->widgetRep();
558 y2error( "No widgetRep() for dialog" );
562 if ( dialog->dialogType() == YMainDialog )
564 _widget_stack->addWidget ( qw );
565 _widget_stack->setCurrentWidget( qw );
567 if ( ! _main_win->isVisible() )
569 // y2milestone( "Showing main window" );
570 _main_win->resize( _default_size );
573 _main_win->move( 0, 0 );
579 else // non-defaultsize dialog
584 ( (YQDialog *) dialog)->ensureOnlyOneDefaultButton();
586 //qApp->processEvents();
590 void YQUI::closeDialog( YDialog * dialog )
592 QWidget * qw = (QWidget *) dialog->widgetRep();
596 y2error( "No widgetRep() for dialog" );
600 if ( dialog->dialogType() == YMainDialog )
602 _widget_stack->removeWidget( qw );
604 else // non-defaultsize dialog
610 // Clean up the popup stack. libyui guarantees that a dialog will be
611 // deleted after closeDialog() so it is safe to pop that dialog from
612 // the popup stack here.
614 if ( ! _popup_stack.empty() && _popup_stack.back() == qw )
615 _popup_stack.pop_back();
617 y2error( "Popup dialog stack corrupted!" );
623 void YQUI::easterEgg()
625 y2milestone( "Starting easter egg..." );
628 YQEasterBunny::layEgg();
629 y2milestone( "Done." );
632 // desktop()->repaint() has no effect - we need to do it the hard way.
633 system( "/usr/X11R6/bin/xrefresh" );
638 QString YQUI::productName() const
640 return fromUTF8( YUI::productName() );
645 YQUI::setTextdomain( const char * domain )
647 bindtextdomain( domain, LOCALEDIR );
648 bind_textdomain_codeset( domain, "utf8" );
649 textdomain( domain );
651 // Make change known.
653 extern int _nl_msg_cat_cntr;
659 void YQUI::blockEvents( bool block )
663 if ( ++blocked_level == 1 )
665 _event_handler.blockEvents( true );
671 if ( --blocked_level == 0 )
673 _event_handler.blockEvents( false );
674 _eventLoop->wakeUp();
680 bool YQUI::eventsBlocked() const
682 return _event_handler.eventsBlocked();
686 qMessageHandler( QtMsgType type, const char * msg )
691 y2milestone ("qt-debug: %s\n", msg);
694 y2warning ("qt-warning: %s\n", msg);
698 y2warning ("qt-critical: %s\n", msg);
701 y2internal ("qt-fatal: %s\n", msg);
702 exit (1); // qt does the same