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>
30 #include <ycp/YCPTerm.h>
31 #include <ycp/YCPCode.h>
33 #define y2log_component "qt-ui"
34 #include <ycp/y2log.h>
37 #include "YQApplication.h"
38 #include "YQWidgetFactory.h"
39 #include "YQOptionalWidgetFactory.h"
41 #include "YUISymbols.h"
46 #include "QY2Settings.h"
49 #define BUSY_CURSOR_TIMEOUT 200 // milliseconds
53 static void qMessageHandler( QtMsgType type, const char * msg );
55 YQUI::YQUI( int argc, char **argv, bool with_threads, const char * macro_file )
60 , _wm_close_blocked( false )
61 , _auto_activate_dialogs( true )
63 y2milestone( "YQUI constructor start" );
69 _decorate_toplevel_window = true;
70 _usingVisionImpairedPalette = false;
71 _leftHandedMouse = false;
72 _askedForLeftHandedMouse = false;
73 screenShotNameTemplate = "";
75 qInstallMsgHandler( qMessageHandler );
77 // Copy command line arguments for QApplication
79 _ui_argv = (char **) malloc( (argc+1) * sizeof( const char * ) );
82 for ( int i=0; i < argc; i++ )
83 _ui_argv[i+1] = strdup( argv[i] );
85 _ui_argv[0] = strdup( "YaST2" );
88 topmostConstructorHasFinished();
97 Qt thinks the first QObject defines the main thread, but
98 the main thread in this case is the ycp thread, not UI
100 //extern void qt_set_current_thread_to_main_thread();
101 //qt_set_current_thread_to_main_thread();
105 new QApplication( _ui_argc, _ui_argv);
106 _busy_cursor_timer = new QTimer( qApp );
107 _busy_cursor_timer->setSingleShot( true );
109 _user_input_timer.setSingleShot( true );
111 _normalPalette = qApp->palette();
113 // Qt keeps track to a global QApplication in qApp.
116 qApp->installEventFilter( this );
117 processCommandLineArgs( _ui_argc, _ui_argv );
120 // Event loop object. Required since a YaST2 UI needs to react to commands
121 // from the YCP command stream as well as to X11 / Qt events.
122 _eventLoop = new QEventLoop( qApp );
123 _do_exit_loop = false;
125 // Create main window for `opt(`defaultsize) dialogs.
127 // We have to use something else than QWidgetStack since QWidgetStack
128 // doesn't accept a WFlags arg which we badly need here.
130 Qt::WFlags wflags = Qt::Window;
132 if ( ! _decorate_toplevel_window )
134 y2debug( "Suppressing WM decorations for toplevel window" );
135 wflags |= Qt::FramelessWindowHint;
138 _main_win = new Q3VBox( 0, 0, wflags ); // parent, name, wflags
139 _main_win->setFocusPolicy( Qt::StrongFocus );
141 // Create widget stack for `opt(`defaultsize) dialogs
143 _widget_stack = new QStackedWidget( _main_win );
144 _widget_stack->setFocusPolicy( Qt::StrongFocus );
146 _main_win->installEventFilter( this );
149 _main_win->resize( _default_size );
151 if ( _fullscreen || ! _have_wm )
152 _main_win->move( 0, 0 );
157 QString title( "YaST2" );
158 char hostname[ MAXHOSTNAMELEN+1 ];
160 if ( gethostname( hostname, sizeof( hostname )-1 ) == 0 )
162 hostname[ sizeof( hostname ) -1 ] = '\0'; // make sure it's terminated
164 if ( strlen( hostname ) > 0 )
166 if ( ( strcmp( hostname, "(none)" ) != 0 &&
167 strcmp( hostname, "linux" ) != 0 ) )
175 _main_win->setWindowTitle( title );
178 // Hide the main window for now. The first call to UI::OpenDialog() on an
179 // `opt(`defaultSize) dialog will trigger a showDialog() call that shows
180 // the main window - there is nothing to display yet.
185 // Ugly hack as a workaround of bug #121872 (Segfault at program exit
186 // if no Qt style defined):
188 // Qt does not seem to be designed for use in plugin libs. It loads some
189 // add-on libs dynamically with dlopen() and unloads them at program exit
190 // (QGPluginManager). Unfortunately, since they all depend on the Qt master
191 // lib (libqt-mt) themselves, when they are unloading the last call to
192 // dlclose() for them causes the last reference to libqt-mt to vanish as
193 // well. Since libqt-mt is already in the process of destruction there is
194 // no more reference from the caller of libqt-mt, and the GLIBC decides
195 // that libqt-mt is not needed any more (zero references) and unmaps
196 // libqt-mt. When the static destructor of libqt-mt that triggered the
197 // cleanup in QGPluginManager returns, the code it is to return to is
198 // already unmapped, causing a segfault.
200 // Workaround: Keep one more reference to libqt-mt open - dlopen() it here
201 // and make sure there is no corresponding dlclose().
203 QString qt_lib_name = QString( QTLIBDIR "/libQtGui.so.%1" ).arg( QT_VERSION >> 16 );;
204 void * qt_lib = dlopen( qt_lib_name.toUtf8().constData(), RTLD_GLOBAL );
205 y2milestone( "Forcing %s open %s", qt_lib_name.toUtf8().constData(),
206 qt_lib ? "successful" : "failed" );
210 qApp->setFont( yqApp()->currentFont() );
213 connect( & _user_input_timer, SIGNAL( timeout() ),
214 this, SLOT ( userInputTimeout() ) );
216 connect( _busy_cursor_timer, SIGNAL( timeout() ),
217 this, SLOT ( busyCursor() ) );
221 // playMacro( macro_file );
223 y2milestone( "YQUI constructor end %ld", QThread::currentThreadId () );
224 qApp->processEvents();
231 return static_cast<YQApplication *>( app() );
235 void YQUI::processCommandLineArgs( int argc, char **argv )
239 for( int i=0; i < argc; i++ )
241 QString opt = argv[i];
243 y2milestone ("Qt argument: %s", argv[i]);
245 // Normalize command line option - accept "--xy" as well as "-xy"
247 if ( opt.startsWith( "--" ) )
250 if ( opt == QString( "-no-wm" ) ) _have_wm = false;
251 else if ( opt == QString( "-fullscreen" ) ) _fullscreen = true;
252 else if ( opt == QString( "-noborder" ) ) _decorate_toplevel_window = false;
253 else if ( opt == QString( "-auto-font" ) ) yqApp()->setAutoFonts( true );
254 else if ( opt == QString( "-auto-fonts" ) ) yqApp()->setAutoFonts( true );
255 // --macro is handled by YUI_component
256 else if ( opt == QString( "-help" ) )
259 "Command line options for the YaST2 Qt UI:\n"
261 "--nothreads run without additional UI threads\n"
262 "--no-wm assume no window manager is running\n"
263 "--fullscreen use full screen for `opt(`defaultsize) dialogs\n"
264 "--noborder no window manager border for `opt(`defaultsize) dialogs\n"
265 "--auto-fonts automatically pick fonts, disregard Qt standard settings\n"
266 "--help this help text\n"
268 "--macro <macro-file> play a macro right on startup\n"
270 "-no-wm, -noborder etc. are accepted as well as --no-wm, --noborder\n"
271 "to maintain backwards compatibility.\n"
280 // Qt handles command line option "-reverse" for Arabic / Hebrew
287 y2debug("Closing down Qt UI.");
291 // Intentionally NOT calling dlclose() to libqt-mt
292 // (see constructor for explanation)
298 YQUI::createWidgetFactory()
300 YQWidgetFactory * factory = new YQWidgetFactory();
301 YUI_CHECK_NEW( factory );
308 YOptionalWidgetFactory *
309 YQUI::createOptionalWidgetFactory()
311 YQOptionalWidgetFactory * factory = new YQOptionalWidgetFactory();
312 YUI_CHECK_NEW( factory );
319 YQUI::createApplication()
321 YQApplication * app = new YQApplication();
322 YUI_CHECK_NEW( app );
328 void YQUI::calcDefaultSize()
330 QSize primaryScreenSize = qApp->desktop()->screenGeometry( qApp->desktop()->primaryScreen() ).size();
331 QSize availableSize = qApp->desktop()->availableGeometry().size();
335 _default_size = availableSize;
337 y2milestone( "-fullscreen: using %dx%d for `opt(`defaultsize)",
338 _default_size.width(), _default_size.height() );
342 // Get _default_size via -geometry command line option (if set)
344 // NOTE not needed in qt4
345 // QWidget * dummy = new QWidget();
347 // qApp->setMainWidget( dummy );
348 // _default_size = dummy->size();
351 // Set min defaultsize or figure one out if -geometry was not used
353 if ( _default_size.width() < 800 ||
354 _default_size.height() < 600 )
356 if ( primaryScreenSize.width() >= 1024 && primaryScreenSize.height() >= 768 )
358 // Scale down to 70% of screen size
360 _default_size.setWidth ( max( (int) (availableSize.width() * 0.7), 800 ) );
361 _default_size.setHeight( max( (int) (availableSize.height() * 0.7), 600 ) );
365 _default_size = availableSize;
370 y2milestone( "Forced size (via -geometry): %dx%d",
371 _default_size.width(), _default_size.height() );
376 _default_size = primaryScreenSize;
380 y2milestone( "Default size: %dx%d", _default_size.width(), _default_size.height() );
385 void YQUI::internalError( const char * msg )
388 int button = QMessageBox::critical( 0, "YaST2 Internal Error", msg,
389 QMessageBox::Abort | QMessageBox::Default,
393 if ( button == QMessageBox::Abort )
398 // exit() leaves a process running (WFM?), so this really seems to be
399 // the only way to make sure we are really going down.
403 void YQUI::idleLoop( int fd_ycp )
407 // runs in main thread
408 _eventLoop->wakeUp();
413 FD_SET(fd_ycp, &rfds);
417 int retval = select(fd_ycp+1, &rfds, NULL, NULL, NULL);
424 void YQUI::sendEvent( YEvent * event )
428 _event_handler.sendEvent( event );
431 _eventLoop->exit( 1 );
436 YEvent * YQUI::userInput( unsigned long timeout_millisec )
440 // y2milestone( "userInput %ld", timeout_millisec );
443 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
445 if ( _user_input_timer.isActive() )
446 _user_input_timer.stop();
450 if ( timeout_millisec > 0 )
451 _user_input_timer.start( timeout_millisec ); // single shot
453 dialog->activate( true );
455 if ( qApp->focusWidget() )
456 qApp->focusWidget()->setFocus();
459 _do_exit_loop = true; // should exit_loop() be called in sendEvent()?
461 while ( ! pendingEvent() )
463 _eventLoop->processEvents(QEventLoop::WaitForMoreEvents);
466 _do_exit_loop = false;
468 event = _event_handler.consumePendingEvent();
469 dialog->activate( false );
471 // Display a busy cursor, but only if there is no other activity within
472 // BUSY_CURSOR_TIMEOUT milliseconds (avoid cursor flicker)
474 _busy_cursor_timer->start( BUSY_CURSOR_TIMEOUT ); // single shot
477 if ( _user_input_timer.isActive() )
478 _user_input_timer.stop();
484 YEvent * YQUI::pollInput()
488 if ( _user_input_timer.isActive() )
489 _user_input_timer.stop();
491 if ( ! pendingEvent() )
493 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
497 dialog->activate( true );
498 //qApp->processEvents();
499 event = _event_handler.consumePendingEvent();
500 dialog->activate( false );
504 if ( pendingEvent() )
505 event = _event_handler.consumePendingEvent();
511 void YQUI::userInputTimeout()
513 if ( ! pendingEvent() )
514 sendEvent( new YTimeoutEvent() );
520 YDialog * YQUI::createDialog( YWidgetOpt & opt )
524 y2milestone( "createDialog %ld", QThread::currentThreadId () );
525 bool has_defaultsize = opt.hasDefaultSize.value();
526 QWidget * qt_parent =
527 has_defaultsize ? _widget_stack : _main_win;
529 // FIXME: Probably obsolete
530 if ( ! has_defaultsize && ! _popup_stack.empty() )
531 qt_parent = _popup_stack.back();
533 YQDialog * dialog = new YQDialog( opt, qt_parent, has_defaultsize );
534 Q_CHECK_PTR( dialog );
536 if ( ! has_defaultsize )
537 _popup_stack.push_back( (QWidget *) dialog->widgetRep() );
544 void YQUI::showDialog( YDialog * dialog )
546 QWidget * qw = (QWidget *) dialog->widgetRep();
550 y2error( "No widgetRep() for dialog" );
554 if ( dialog->dialogType() == YMainDialog )
556 _widget_stack->addWidget ( qw );
557 _widget_stack->setCurrentWidget( qw );
559 if ( ! _main_win->isVisible() )
561 // y2milestone( "Showing main window" );
562 _main_win->resize( _default_size );
565 _main_win->move( 0, 0 );
571 else // non-defaultsize dialog
576 ( (YQDialog *) dialog)->ensureOnlyOneDefaultButton();
578 //qApp->processEvents();
582 void YQUI::closeDialog( YDialog * dialog )
584 QWidget * qw = (QWidget *) dialog->widgetRep();
588 y2error( "No widgetRep() for dialog" );
592 if ( dialog->dialogType() == YMainDialog )
594 _widget_stack->removeWidget( qw );
596 else // non-defaultsize dialog
602 // Clean up the popup stack. libyui guarantees that a dialog will be
603 // deleted after closeDialog() so it is safe to pop that dialog from
604 // the popup stack here.
606 if ( ! _popup_stack.empty() && _popup_stack.back() == qw )
607 _popup_stack.pop_back();
609 y2error( "Popup dialog stack corrupted!" );
615 void YQUI::easterEgg()
617 y2milestone( "Starting easter egg..." );
620 YQEasterBunny::layEgg();
621 y2milestone( "Done." );
624 // desktop()->repaint() has no effect - we need to do it the hard way.
625 system( "/usr/X11R6/bin/xrefresh" );
630 QString YQUI::productName() const
632 return fromUTF8( YUI::productName() );
637 YQUI::setTextdomain( const char * domain )
639 bindtextdomain( domain, LOCALEDIR );
640 bind_textdomain_codeset( domain, "utf8" );
641 textdomain( domain );
643 // Make change known.
645 extern int _nl_msg_cat_cntr;
653 qMessageHandler( QtMsgType type, const char * msg )
658 y2milestone ("qt-debug: %s\n", msg);
661 y2warning ("qt-warning: %s\n", msg);
665 y2warning ("qt-critical: %s\n", msg);
668 y2internal ("qt-fatal: %s\n", msg);
669 exit (1); // qt does the same