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 "QY2Styler.h"
39 #include "YQApplication.h"
40 #include "YQWidgetFactory.h"
41 #include "YQOptionalWidgetFactory.h"
43 #include "YUISymbols.h"
48 #include "QY2Settings.h"
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 _styler = new QY2Styler( this );
123 _styler->setStyleSheet( "style.qss" );
125 // Event loop object. Required since a YaST2 UI needs to react to commands
126 // from the YCP command stream as well as to X11 / Qt events.
127 _eventLoop = new QEventLoop( qApp );
128 _do_exit_loop = false;
130 // Create main window for `opt(`defaultsize) dialogs.
132 // We have to use something else than QWidgetStack since QWidgetStack
133 // doesn't accept a WFlags arg which we badly need here.
135 Qt::WFlags wflags = Qt::Window;
137 if ( ! _decorate_toplevel_window )
139 y2debug( "Suppressing WM decorations for toplevel window" );
140 wflags |= Qt::FramelessWindowHint;
143 _main_win = new QWidget( 0, wflags ); // parent, wflags
144 _main_win->setFocusPolicy( Qt::StrongFocus );
145 _main_win->setObjectName( "main_window" );
147 // Create widget stack for `opt(`defaultsize) dialogs
148 QVBoxLayout *vbox = new QVBoxLayout( _main_win );
149 vbox->setSpacing( 0 );
150 vbox->setMargin( 0 );
152 _widget_stack = new QStackedWidget( _main_win );
153 _widget_stack->setFocusPolicy( Qt::StrongFocus );
154 vbox->addWidget( _widget_stack );
156 _main_win->installEventFilter( this );
159 _main_win->resize( _default_size );
161 if ( _fullscreen || ! _have_wm )
162 _main_win->move( 0, 0 );
167 QString title( "YaST2" );
168 char hostname[ MAXHOSTNAMELEN+1 ];
170 if ( gethostname( hostname, sizeof( hostname )-1 ) == 0 )
172 hostname[ sizeof( hostname ) -1 ] = '\0'; // make sure it's terminated
174 if ( strlen( hostname ) > 0 )
176 if ( ( strcmp( hostname, "(none)" ) != 0 &&
177 strcmp( hostname, "linux" ) != 0 ) )
185 _main_win->setWindowTitle( title );
188 // Hide the main window for now. The first call to UI::OpenDialog() on an
189 // `opt(`defaultSize) dialog will trigger a showDialog() call that shows
190 // the main window - there is nothing to display yet.
195 // Ugly hack as a workaround of bug #121872 (Segfault at program exit
196 // if no Qt style defined):
198 // Qt does not seem to be designed for use in plugin libs. It loads some
199 // add-on libs dynamically with dlopen() and unloads them at program exit
200 // (QGPluginManager). Unfortunately, since they all depend on the Qt master
201 // lib (libqt-mt) themselves, when they are unloading the last call to
202 // dlclose() for them causes the last reference to libqt-mt to vanish as
203 // well. Since libqt-mt is already in the process of destruction there is
204 // no more reference from the caller of libqt-mt, and the GLIBC decides
205 // that libqt-mt is not needed any more (zero references) and unmaps
206 // libqt-mt. When the static destructor of libqt-mt that triggered the
207 // cleanup in QGPluginManager returns, the code it is to return to is
208 // already unmapped, causing a segfault.
210 // Workaround: Keep one more reference to libqt-mt open - dlopen() it here
211 // and make sure there is no corresponding dlclose().
213 QString qt_lib_name = QString( QTLIBDIR "/libQtGui.so.%1" ).arg( QT_VERSION >> 16 );;
214 void * qt_lib = dlopen( qt_lib_name.toUtf8().constData(), RTLD_GLOBAL );
215 y2milestone( "Forcing %s open %s", qt_lib_name.toUtf8().constData(),
216 qt_lib ? "successful" : "failed" );
220 qApp->setFont( yqApp()->currentFont() );
223 connect( & _user_input_timer, SIGNAL( timeout() ),
224 this, SLOT ( userInputTimeout() ) );
226 connect( _busy_cursor_timer, SIGNAL( timeout() ),
227 this, SLOT ( busyCursor() ) );
231 // playMacro( macro_file );
233 y2milestone( "YQUI constructor end %ld", QThread::currentThreadId () );
234 qApp->processEvents();
241 return static_cast<YQApplication *>( app() );
245 void YQUI::processCommandLineArgs( int argc, char **argv )
249 for( int i=0; i < argc; i++ )
251 QString opt = argv[i];
253 y2milestone ("Qt argument: %s", argv[i]);
255 // Normalize command line option - accept "--xy" as well as "-xy"
257 if ( opt.startsWith( "--" ) )
260 if ( opt == QString( "-no-wm" ) ) _have_wm = false;
261 else if ( opt == QString( "-fullscreen" ) ) _fullscreen = true;
262 else if ( opt == QString( "-noborder" ) ) _decorate_toplevel_window = false;
263 else if ( opt == QString( "-auto-font" ) ) yqApp()->setAutoFonts( true );
264 else if ( opt == QString( "-auto-fonts" ) ) yqApp()->setAutoFonts( true );
265 // --macro is handled by YUI_component
266 else if ( opt == QString( "-help" ) )
269 "Command line options for the YaST2 Qt UI:\n"
271 "--nothreads run without additional UI threads\n"
272 "--no-wm assume no window manager is running\n"
273 "--fullscreen use full screen for `opt(`defaultsize) dialogs\n"
274 "--noborder no window manager border for `opt(`defaultsize) dialogs\n"
275 "--auto-fonts automatically pick fonts, disregard Qt standard settings\n"
276 "--help this help text\n"
278 "--macro <macro-file> play a macro right on startup\n"
280 "-no-wm, -noborder etc. are accepted as well as --no-wm, --noborder\n"
281 "to maintain backwards compatibility.\n"
290 // Qt handles command line option "-reverse" for Arabic / Hebrew
297 y2debug("Closing down Qt UI.");
301 // Intentionally NOT calling dlclose() to libqt-mt
302 // (see constructor for explanation)
308 YQUI::createWidgetFactory()
310 YQWidgetFactory * factory = new YQWidgetFactory();
311 YUI_CHECK_NEW( factory );
318 YOptionalWidgetFactory *
319 YQUI::createOptionalWidgetFactory()
321 YQOptionalWidgetFactory * factory = new YQOptionalWidgetFactory();
322 YUI_CHECK_NEW( factory );
329 YQUI::createApplication()
331 YQApplication * app = new YQApplication();
332 YUI_CHECK_NEW( app );
338 void YQUI::calcDefaultSize()
340 QSize primaryScreenSize = qApp->desktop()->screenGeometry( qApp->desktop()->primaryScreen() ).size();
341 QSize availableSize = qApp->desktop()->availableGeometry().size();
345 _default_size = availableSize;
347 y2milestone( "-fullscreen: using %dx%d for `opt(`defaultsize)",
348 _default_size.width(), _default_size.height() );
352 // Get _default_size via -geometry command line option (if set)
354 // NOTE not needed in qt4
355 // QWidget * dummy = new QWidget();
357 // qApp->setMainWidget( dummy );
358 // _default_size = dummy->size();
361 // Set min defaultsize or figure one out if -geometry was not used
363 if ( _default_size.width() < 800 ||
364 _default_size.height() < 600 )
366 if ( primaryScreenSize.width() >= 1024 && primaryScreenSize.height() >= 768 )
368 // Scale down to 70% of screen size
370 _default_size.setWidth ( max( (int) (availableSize.width() * 0.7), 800 ) );
371 _default_size.setHeight( max( (int) (availableSize.height() * 0.7), 600 ) );
375 _default_size = availableSize;
380 y2milestone( "Forced size (via -geometry): %dx%d",
381 _default_size.width(), _default_size.height() );
386 _default_size = primaryScreenSize;
390 y2milestone( "Default size: %dx%d", _default_size.width(), _default_size.height() );
395 void YQUI::internalError( const char * msg )
398 int button = QMessageBox::critical( 0, "YaST2 Internal Error", msg,
399 QMessageBox::Abort | QMessageBox::Default,
403 if ( button == QMessageBox::Abort )
408 // exit() leaves a process running (WFM?), so this really seems to be
409 // the only way to make sure we are really going down.
413 void YQUI::idleLoop( int fd_ycp )
417 // runs in main thread
418 _eventLoop->wakeUp();
423 FD_SET(fd_ycp, &rfds);
427 int retval = select(fd_ycp+1, &rfds, NULL, NULL, NULL);
434 void YQUI::sendEvent( YEvent * event )
438 _event_handler.sendEvent( event );
441 _eventLoop->exit( 1 );
446 YEvent * YQUI::userInput( unsigned long timeout_millisec )
450 _event_handler.blockEvents( false );
451 _eventLoop->wakeUp();
454 //y2milestone( "userInput %ld", timeout_millisec );
457 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
459 if ( _user_input_timer.isActive() )
460 _user_input_timer.stop();
464 if ( timeout_millisec > 0 )
465 _user_input_timer.start( timeout_millisec ); // single shot
467 dialog->activate( true );
469 if ( qApp->focusWidget() )
470 qApp->focusWidget()->setFocus();
473 _do_exit_loop = true; // should exit_loop() be called in sendEvent()?
475 _do_exit_loop = false;
477 event = _event_handler.consumePendingEvent();
478 dialog->activate( false );
480 // Display a busy cursor, but only if there is no other activity within
481 // BUSY_CURSOR_TIMEOUT milliseconds (avoid cursor flicker)
483 _busy_cursor_timer->start( BUSY_CURSOR_TIMEOUT ); // single shot
486 if ( _user_input_timer.isActive() )
487 _user_input_timer.stop();
493 YEvent * YQUI::pollInput()
497 if ( _user_input_timer.isActive() )
498 _user_input_timer.stop();
500 if ( ! pendingEvent() )
502 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
506 dialog->activate( true );
507 //qApp->processEvents();
508 event = _event_handler.consumePendingEvent();
509 dialog->activate( false );
513 if ( pendingEvent() )
514 event = _event_handler.consumePendingEvent();
520 void YQUI::userInputTimeout()
522 if ( ! pendingEvent() )
523 sendEvent( new YTimeoutEvent() );
529 YDialog * YQUI::createDialog( YWidgetOpt & opt )
533 y2milestone( "createDialog %ld", QThread::currentThreadId () );
534 bool has_defaultsize = opt.hasDefaultSize.value();
535 QWidget * qt_parent =
536 has_defaultsize ? _widget_stack : _main_win;
538 // FIXME: Probably obsolete
539 if ( ! has_defaultsize && ! _popup_stack.empty() )
540 qt_parent = _popup_stack.back();
542 YQDialog * dialog = new YQDialog( opt, qt_parent, has_defaultsize );
543 Q_CHECK_PTR( dialog );
545 if ( ! has_defaultsize )
546 _popup_stack.push_back( (QWidget *) dialog->widgetRep() );
553 void YQUI::showDialog( YDialog * dialog )
555 QWidget * qw = (QWidget *) dialog->widgetRep();
559 y2error( "No widgetRep() for dialog" );
563 if ( dialog->dialogType() == YMainDialog )
565 _widget_stack->addWidget ( qw );
566 _widget_stack->setCurrentWidget( qw );
568 if ( ! _main_win->isVisible() )
570 // y2milestone( "Showing main window" );
571 _main_win->resize( _default_size );
574 _main_win->move( 0, 0 );
580 else // non-defaultsize dialog
585 ( (YQDialog *) dialog)->ensureOnlyOneDefaultButton();
587 //qApp->processEvents();
591 void YQUI::closeDialog( YDialog * dialog )
593 QWidget * qw = (QWidget *) dialog->widgetRep();
597 y2error( "No widgetRep() for dialog" );
601 if ( dialog->dialogType() == YMainDialog )
603 _widget_stack->removeWidget( qw );
605 else // non-defaultsize dialog
611 // Clean up the popup stack. libyui guarantees that a dialog will be
612 // deleted after closeDialog() so it is safe to pop that dialog from
613 // the popup stack here.
615 if ( ! _popup_stack.empty() && _popup_stack.back() == qw )
616 _popup_stack.pop_back();
618 y2error( "Popup dialog stack corrupted!" );
624 void YQUI::easterEgg()
626 y2milestone( "Starting easter egg..." );
629 YQEasterBunny::layEgg();
630 y2milestone( "Done." );
633 // desktop()->repaint() has no effect - we need to do it the hard way.
634 system( "/usr/X11R6/bin/xrefresh" );
639 QString YQUI::productName() const
641 return fromUTF8( YUI::productName() );
646 YQUI::setTextdomain( const char * domain )
648 bindtextdomain( domain, LOCALEDIR );
649 bind_textdomain_codeset( domain, "utf8" );
650 textdomain( domain );
652 // Make change known.
654 extern int _nl_msg_cat_cntr;
660 void YQUI::blockEvents( bool block )
664 if ( ++blocked_level == 1 )
666 _event_handler.blockEvents( true );
672 if ( --blocked_level == 0 )
674 _event_handler.blockEvents( false );
675 _eventLoop->wakeUp();
681 bool YQUI::eventsBlocked() const
683 return _event_handler.eventsBlocked();
687 qMessageHandler( QtMsgType type, const char * msg )
692 y2milestone ("qt-debug: %s\n", msg);
695 y2warning ("qt-warning: %s\n", msg);
699 y2warning ("qt-critical: %s\n", msg);
702 y2internal ("qt-fatal: %s\n", msg);
703 exit (1); // qt does the same