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"
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 // Event loop object. Required since a YaST2 UI needs to react to commands
123 // from the YCP command stream as well as to X11 / Qt events.
124 _eventLoop = new QEventLoop( qApp );
125 _do_exit_loop = false;
127 // Create main window for `opt(`defaultsize) dialogs.
129 // We have to use something else than QWidgetStack since QWidgetStack
130 // doesn't accept a WFlags arg which we badly need here.
132 Qt::WFlags wflags = Qt::Window;
134 if ( ! _decorate_toplevel_window )
136 y2debug( "Suppressing WM decorations for toplevel window" );
137 wflags |= Qt::FramelessWindowHint;
140 _main_win = new QWidget( 0, wflags ); // parent, wflags
141 _main_win->setFocusPolicy( Qt::StrongFocus );
142 _main_win->setObjectName( "main_window" );
144 // Create widget stack for `opt(`defaultsize) dialogs
145 QVBoxLayout *vbox = new QVBoxLayout( _main_win );
146 vbox->setSpacing( 0 );
147 vbox->setMargin( 0 );
149 _widget_stack = new QStackedWidget( _main_win );
150 _widget_stack->setFocusPolicy( Qt::StrongFocus );
151 vbox->addWidget( _widget_stack );
153 _main_win->installEventFilter( this );
156 _main_win->resize( _default_size );
158 if ( _fullscreen || ! _have_wm )
159 _main_win->move( 0, 0 );
164 QString title( "YaST2" );
165 char hostname[ MAXHOSTNAMELEN+1 ];
167 if ( gethostname( hostname, sizeof( hostname )-1 ) == 0 )
169 hostname[ sizeof( hostname ) -1 ] = '\0'; // make sure it's terminated
171 if ( strlen( hostname ) > 0 )
173 if ( ( strcmp( hostname, "(none)" ) != 0 &&
174 strcmp( hostname, "linux" ) != 0 ) )
182 _main_win->setWindowTitle( title );
185 // Hide the main window for now. The first call to UI::OpenDialog() on an
186 // `opt(`defaultSize) dialog will trigger a showDialog() call that shows
187 // the main window - there is nothing to display yet.
192 // Ugly hack as a workaround of bug #121872 (Segfault at program exit
193 // if no Qt style defined):
195 // Qt does not seem to be designed for use in plugin libs. It loads some
196 // add-on libs dynamically with dlopen() and unloads them at program exit
197 // (QGPluginManager). Unfortunately, since they all depend on the Qt master
198 // lib (libqt-mt) themselves, when they are unloading the last call to
199 // dlclose() for them causes the last reference to libqt-mt to vanish as
200 // well. Since libqt-mt is already in the process of destruction there is
201 // no more reference from the caller of libqt-mt, and the GLIBC decides
202 // that libqt-mt is not needed any more (zero references) and unmaps
203 // libqt-mt. When the static destructor of libqt-mt that triggered the
204 // cleanup in QGPluginManager returns, the code it is to return to is
205 // already unmapped, causing a segfault.
207 // Workaround: Keep one more reference to libqt-mt open - dlopen() it here
208 // and make sure there is no corresponding dlclose().
210 QString qt_lib_name = QString( QTLIBDIR "/libQtGui.so.%1" ).arg( QT_VERSION >> 16 );;
211 void * qt_lib = dlopen( qt_lib_name.toUtf8().constData(), RTLD_GLOBAL );
212 y2milestone( "Forcing %s open %s", qt_lib_name.toUtf8().constData(),
213 qt_lib ? "successful" : "failed" );
217 qApp->setFont( yqApp()->currentFont() );
220 connect( & _user_input_timer, SIGNAL( timeout() ),
221 this, SLOT ( userInputTimeout() ) );
223 connect( _busy_cursor_timer, SIGNAL( timeout() ),
224 this, SLOT ( busyCursor() ) );
228 // playMacro( macro_file );
230 y2milestone( "YQUI constructor end %ld", QThread::currentThreadId () );
231 qApp->processEvents();
238 return static_cast<YQApplication *>( app() );
242 void YQUI::processCommandLineArgs( int argc, char **argv )
246 for( int i=0; i < argc; i++ )
248 QString opt = argv[i];
250 y2milestone ("Qt argument: %s", argv[i]);
252 // Normalize command line option - accept "--xy" as well as "-xy"
254 if ( opt.startsWith( "--" ) )
257 if ( opt == QString( "-no-wm" ) ) _have_wm = false;
258 else if ( opt == QString( "-fullscreen" ) ) _fullscreen = true;
259 else if ( opt == QString( "-noborder" ) ) _decorate_toplevel_window = false;
260 else if ( opt == QString( "-auto-font" ) ) yqApp()->setAutoFonts( true );
261 else if ( opt == QString( "-auto-fonts" ) ) yqApp()->setAutoFonts( true );
262 // --macro is handled by YUI_component
263 else if ( opt == QString( "-help" ) )
266 "Command line options for the YaST2 Qt UI:\n"
268 "--nothreads run without additional UI threads\n"
269 "--no-wm assume no window manager is running\n"
270 "--fullscreen use full screen for `opt(`defaultsize) dialogs\n"
271 "--noborder no window manager border for `opt(`defaultsize) dialogs\n"
272 "--auto-fonts automatically pick fonts, disregard Qt standard settings\n"
273 "--help this help text\n"
275 "--macro <macro-file> play a macro right on startup\n"
277 "-no-wm, -noborder etc. are accepted as well as --no-wm, --noborder\n"
278 "to maintain backwards compatibility.\n"
287 // Qt handles command line option "-reverse" for Arabic / Hebrew
294 y2debug("Closing down Qt UI.");
298 // Intentionally NOT calling dlclose() to libqt-mt
299 // (see constructor for explanation)
305 YQUI::createWidgetFactory()
307 YQWidgetFactory * factory = new YQWidgetFactory();
308 YUI_CHECK_NEW( factory );
315 YOptionalWidgetFactory *
316 YQUI::createOptionalWidgetFactory()
318 YQOptionalWidgetFactory * factory = new YQOptionalWidgetFactory();
319 YUI_CHECK_NEW( factory );
326 YQUI::createApplication()
328 YQApplication * app = new YQApplication();
329 YUI_CHECK_NEW( app );
335 void YQUI::calcDefaultSize()
337 QSize primaryScreenSize = qApp->desktop()->screenGeometry( qApp->desktop()->primaryScreen() ).size();
338 QSize availableSize = qApp->desktop()->availableGeometry().size();
342 _default_size = availableSize;
344 y2milestone( "-fullscreen: using %dx%d for `opt(`defaultsize)",
345 _default_size.width(), _default_size.height() );
349 // Get _default_size via -geometry command line option (if set)
351 // NOTE not needed in qt4
352 // QWidget * dummy = new QWidget();
354 // qApp->setMainWidget( dummy );
355 // _default_size = dummy->size();
358 // Set min defaultsize or figure one out if -geometry was not used
360 if ( _default_size.width() < 800 ||
361 _default_size.height() < 600 )
363 if ( primaryScreenSize.width() >= 1024 && primaryScreenSize.height() >= 768 )
365 // Scale down to 70% of screen size
367 _default_size.setWidth ( max( (int) (availableSize.width() * 0.7), 800 ) );
368 _default_size.setHeight( max( (int) (availableSize.height() * 0.7), 600 ) );
372 _default_size = availableSize;
377 y2milestone( "Forced size (via -geometry): %dx%d",
378 _default_size.width(), _default_size.height() );
383 _default_size = primaryScreenSize;
387 y2milestone( "Default size: %dx%d", _default_size.width(), _default_size.height() );
392 void YQUI::internalError( const char * msg )
395 int button = QMessageBox::critical( 0, "YaST2 Internal Error", msg,
396 QMessageBox::Abort | QMessageBox::Default,
400 if ( button == QMessageBox::Abort )
405 // exit() leaves a process running (WFM?), so this really seems to be
406 // the only way to make sure we are really going down.
410 void YQUI::idleLoop( int fd_ycp )
414 // runs in main thread
415 _eventLoop->wakeUp();
420 FD_SET(fd_ycp, &rfds);
424 int retval = select(fd_ycp+1, &rfds, NULL, NULL, NULL);
431 void YQUI::sendEvent( YEvent * event )
435 _event_handler.sendEvent( event );
438 _eventLoop->exit( 1 );
443 YEvent * YQUI::userInput( unsigned long timeout_millisec )
447 _event_handler.blockEvents( false );
448 _eventLoop->wakeUp();
451 //y2milestone( "userInput %ld", timeout_millisec );
454 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
456 if ( _user_input_timer.isActive() )
457 _user_input_timer.stop();
461 if ( timeout_millisec > 0 )
462 _user_input_timer.start( timeout_millisec ); // single shot
464 dialog->activate( true );
466 if ( qApp->focusWidget() )
467 qApp->focusWidget()->setFocus();
470 _do_exit_loop = true; // should exit_loop() be called in sendEvent()?
472 _do_exit_loop = false;
474 event = _event_handler.consumePendingEvent();
475 dialog->activate( false );
477 // Display a busy cursor, but only if there is no other activity within
478 // BUSY_CURSOR_TIMEOUT milliseconds (avoid cursor flicker)
480 _busy_cursor_timer->start( BUSY_CURSOR_TIMEOUT ); // single shot
483 if ( _user_input_timer.isActive() )
484 _user_input_timer.stop();
490 YEvent * YQUI::pollInput()
494 if ( _user_input_timer.isActive() )
495 _user_input_timer.stop();
497 if ( ! pendingEvent() )
499 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
503 dialog->activate( true );
504 //qApp->processEvents();
505 event = _event_handler.consumePendingEvent();
506 dialog->activate( false );
510 if ( pendingEvent() )
511 event = _event_handler.consumePendingEvent();
517 void YQUI::userInputTimeout()
519 if ( ! pendingEvent() )
520 sendEvent( new YTimeoutEvent() );
526 YDialog * YQUI::createDialog( YWidgetOpt & opt )
530 y2milestone( "createDialog %ld", QThread::currentThreadId () );
531 bool has_defaultsize = opt.hasDefaultSize.value();
532 QWidget * qt_parent =
533 has_defaultsize ? _widget_stack : _main_win;
535 // FIXME: Probably obsolete
536 if ( ! has_defaultsize && ! _popup_stack.empty() )
537 qt_parent = _popup_stack.back();
539 YQDialog * dialog = new YQDialog( opt, qt_parent, has_defaultsize );
540 Q_CHECK_PTR( dialog );
542 if ( ! has_defaultsize )
543 _popup_stack.push_back( (QWidget *) dialog->widgetRep() );
550 void YQUI::showDialog( YDialog * dialog )
552 QWidget * qw = (QWidget *) dialog->widgetRep();
556 y2error( "No widgetRep() for dialog" );
560 if ( dialog->dialogType() == YMainDialog )
562 _widget_stack->addWidget ( qw );
563 _widget_stack->setCurrentWidget( qw );
565 if ( ! _main_win->isVisible() )
567 // y2milestone( "Showing main window" );
568 _main_win->resize( _default_size );
571 _main_win->move( 0, 0 );
577 else // non-defaultsize dialog
582 ( (YQDialog *) dialog)->ensureOnlyOneDefaultButton();
584 //qApp->processEvents();
588 void YQUI::closeDialog( YDialog * dialog )
590 QWidget * qw = (QWidget *) dialog->widgetRep();
594 y2error( "No widgetRep() for dialog" );
598 if ( dialog->dialogType() == YMainDialog )
600 _widget_stack->removeWidget( qw );
602 else // non-defaultsize dialog
608 // Clean up the popup stack. libyui guarantees that a dialog will be
609 // deleted after closeDialog() so it is safe to pop that dialog from
610 // the popup stack here.
612 if ( ! _popup_stack.empty() && _popup_stack.back() == qw )
613 _popup_stack.pop_back();
615 y2error( "Popup dialog stack corrupted!" );
621 void YQUI::easterEgg()
623 y2milestone( "Starting easter egg..." );
626 YQEasterBunny::layEgg();
627 y2milestone( "Done." );
630 // desktop()->repaint() has no effect - we need to do it the hard way.
631 system( "/usr/X11R6/bin/xrefresh" );
636 QString YQUI::productName() const
638 return fromUTF8( YUI::productName() );
643 YQUI::setTextdomain( const char * domain )
645 bindtextdomain( domain, LOCALEDIR );
646 bind_textdomain_codeset( domain, "utf8" );
647 textdomain( domain );
649 // Make change known.
651 extern int _nl_msg_cat_cntr;
657 void YQUI::blockEvents( bool block )
661 if ( ++blocked_level == 1 )
663 _event_handler.blockEvents( true );
669 if ( --blocked_level == 0 )
671 _event_handler.blockEvents( false );
672 _eventLoop->wakeUp();
678 bool YQUI::eventsBlocked() const
680 return _event_handler.eventsBlocked();
684 qMessageHandler( QtMsgType type, const char * msg )
689 y2milestone ("qt-debug: %s\n", msg);
692 y2warning ("qt-warning: %s\n", msg);
696 y2warning ("qt-critical: %s\n", msg);
699 y2internal ("qt-fatal: %s\n", msg);
700 exit (1); // qt does the same