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"
47 #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 )
59 , _do_exit_loop( false )
62 y2milestone( "YQUI constructor start" );
67 _usingVisionImpairedPalette = false;
68 _leftHandedMouse = false;
69 _askedForLeftHandedMouse = false;
70 screenShotNameTemplate = "";
73 qInstallMsgHandler( qMessageHandler );
75 // Copy command line arguments for QApplication
77 _ui_argv = (char **) malloc( (argc+1) * sizeof( const char * ) );
80 for ( int i=0; i < argc; i++ )
81 _ui_argv[i+1] = strdup( argv[i] );
83 _ui_argv[0] = strdup( "YaST2" );
86 topmostConstructorHasFinished();
95 Qt thinks the first QObject defines the main thread, but
96 the main thread in this case is the ycp thread, not UI
98 //extern void qt_set_current_thread_to_main_thread();
99 //qt_set_current_thread_to_main_thread();
103 new QApplication( _ui_argc, _ui_argv);
104 _busy_cursor_timer = new QTimer( qApp );
105 _busy_cursor_timer->setSingleShot( true );
107 _user_input_timer.setSingleShot( true );
109 _normalPalette = qApp->palette();
111 // Qt keeps track to a global QApplication in qApp.
114 processCommandLineArgs( _ui_argc, _ui_argv );
117 _styler = new QY2Styler( qApp );
118 _styler->setStyleSheet( "style.qss" );
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 _main_win = new QWidget( 0, Qt::Window ); // parent, wflags
131 _main_win->setFocusPolicy( Qt::StrongFocus );
132 _main_win->setObjectName( "main_window" );
133 _styler->registerWidget( _main_win );
135 _main_win->resize( _default_size );
138 _main_win->move( 0, 0 );
143 QString title( "YaST2" );
144 char hostname[ MAXHOSTNAMELEN+1 ];
146 if ( gethostname( hostname, sizeof( hostname )-1 ) == 0 )
148 hostname[ sizeof( hostname ) -1 ] = '\0'; // make sure it's terminated
150 if ( strlen( hostname ) > 0 )
152 if ( ( strcmp( hostname, "(none)" ) != 0 &&
153 strcmp( hostname, "linux" ) != 0 ) )
161 _main_win->setWindowTitle( title );
164 // Hide the main window for now. The first call to UI::OpenDialog() on an
165 // `opt(`defaultSize) dialog will trigger a showDialog() call that shows
166 // the main window - there is nothing to display yet.
171 // Ugly hack as a workaround of bug #121872 (Segfault at program exit
172 // if no Qt style defined):
174 // Qt does not seem to be designed for use in plugin libs. It loads some
175 // add-on libs dynamically with dlopen() and unloads them at program exit
176 // (QGPluginManager). Unfortunately, since they all depend on the Qt master
177 // lib (libqt-mt) themselves, when they are unloading the last call to
178 // dlclose() for them causes the last reference to libqt-mt to vanish as
179 // well. Since libqt-mt is already in the process of destruction there is
180 // no more reference from the caller of libqt-mt, and the GLIBC decides
181 // that libqt-mt is not needed any more (zero references) and unmaps
182 // libqt-mt. When the static destructor of libqt-mt that triggered the
183 // cleanup in QGPluginManager returns, the code it is to return to is
184 // already unmapped, causing a segfault.
186 // Workaround: Keep one more reference to libqt-mt open - dlopen() it here
187 // and make sure there is no corresponding dlclose().
189 QString qt_lib_name = QString( QTLIBDIR "/libQtGui.so.%1" ).arg( QT_VERSION >> 16 );;
190 void * qt_lib = dlopen( qt_lib_name.toUtf8().constData(), RTLD_GLOBAL );
191 y2milestone( "Forcing %s open %s", qt_lib_name.toUtf8().constData(),
192 qt_lib ? "successful" : "failed" );
196 qApp->setFont( yqApp()->currentFont() );
199 connect( & _user_input_timer, SIGNAL( timeout() ),
200 this, SLOT ( userInputTimeout() ) );
202 connect( _busy_cursor_timer, SIGNAL( timeout() ),
203 this, SLOT ( busyCursor() ) );
207 // playMacro( macro_file );
209 y2milestone( "YQUI constructor end %ld", QThread::currentThreadId () );
210 qApp->processEvents();
217 return static_cast<YQApplication *>( app() );
221 void YQUI::processCommandLineArgs( int argc, char **argv )
225 for( int i=0; i < argc; i++ )
227 QString opt = argv[i];
229 y2milestone ("Qt argument: %s", argv[i]);
231 // Normalize command line option - accept "--xy" as well as "-xy"
233 if ( opt.startsWith( "--" ) )
236 if ( opt == QString( "-fullscreen" ) ) _fullscreen = true;
237 else if ( opt == QString( "-noborder" ) ) _noborder = true;
238 else if ( opt == QString( "-auto-font" ) ) yqApp()->setAutoFonts( true );
239 else if ( opt == QString( "-auto-fonts" ) ) yqApp()->setAutoFonts( true );
240 // --macro is handled by YUI_component
241 else if ( opt == QString( "-help" ) )
244 "Command line options for the YaST2 Qt UI:\n"
246 "--nothreads run without additional UI threads\n"
247 "--fullscreen use full screen for `opt(`defaultsize) dialogs\n"
248 "--noborder no window manager border for `opt(`defaultsize) dialogs\n"
249 "--auto-fonts automatically pick fonts, disregard Qt standard settings\n"
250 "--help this help text\n"
252 "--macro <macro-file> play a macro right on startup\n"
254 "-no-wm, -noborder etc. are accepted as well as --no-wm, --noborder\n"
255 "to maintain backwards compatibility.\n"
264 // Qt handles command line option "-reverse" for Arabic / Hebrew
271 y2debug("Closing down Qt UI.");
275 // Intentionally NOT calling dlclose() to libqt-mt
276 // (see constructor for explanation)
282 YQUI::createWidgetFactory()
284 YQWidgetFactory * factory = new YQWidgetFactory();
285 YUI_CHECK_NEW( factory );
292 YOptionalWidgetFactory *
293 YQUI::createOptionalWidgetFactory()
295 YQOptionalWidgetFactory * factory = new YQOptionalWidgetFactory();
296 YUI_CHECK_NEW( factory );
303 YQUI::createApplication()
305 YQApplication * app = new YQApplication();
306 YUI_CHECK_NEW( app );
312 void YQUI::calcDefaultSize()
314 QSize primaryScreenSize = qApp->desktop()->screenGeometry( qApp->desktop()->primaryScreen() ).size();
315 QSize availableSize = qApp->desktop()->availableGeometry().size();
319 _default_size = availableSize;
321 y2milestone( "-fullscreen: using %dx%d for `opt(`defaultsize)",
322 _default_size.width(), _default_size.height() );
326 // Get _default_size via -geometry command line option (if set)
328 // NOTE not needed in qt4
329 // QWidget * dummy = new QWidget();
331 // qApp->setMainWidget( dummy );
332 // _default_size = dummy->size();
334 // Set min defaultsize or figure one out if -geometry was not used
336 if ( _default_size.width() < 800 ||
337 _default_size.height() < 600 )
339 if ( primaryScreenSize.width() >= 1024 && primaryScreenSize.height() >= 768 )
341 // Scale down to 70% of screen size
343 _default_size.setWidth ( max( (int) (availableSize.width() * 0.7), 800 ) );
344 _default_size.setHeight( max( (int) (availableSize.height() * 0.7), 600 ) );
348 _default_size = availableSize;
353 y2milestone( "Forced size (via -geometry): %dx%d",
354 _default_size.width(), _default_size.height() );
358 y2milestone( "Default size: %dx%d", _default_size.width(), _default_size.height() );
363 void YQUI::internalError( const char * msg )
366 int button = QMessageBox::critical( 0, "YaST2 Internal Error", msg,
367 QMessageBox::Abort | QMessageBox::Default,
371 if ( button == QMessageBox::Abort )
376 // exit() leaves a process running (WFM?), so this really seems to be
377 // the only way to make sure we are really going down.
381 void YQUI::idleLoop( int fd_ycp )
385 // runs in main thread
386 _eventLoop->wakeUp();
391 FD_SET(fd_ycp, &rfds);
395 int retval = select(fd_ycp+1, &rfds, NULL, NULL, NULL);
402 void YQUI::sendEvent( YEvent * event )
406 _event_handler.sendEvent( event );
409 _eventLoop->exit( 1 );
414 YEvent * YQUI::userInput( unsigned long timeout_millisec )
418 _event_handler.blockEvents( false );
419 _eventLoop->wakeUp();
422 //y2milestone( "userInput %ld", timeout_millisec );
425 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
427 if ( _user_input_timer.isActive() )
428 _user_input_timer.stop();
432 if ( timeout_millisec > 0 )
433 _user_input_timer.start( timeout_millisec ); // single shot
435 if ( qApp->focusWidget() )
436 qApp->focusWidget()->setFocus();
439 _do_exit_loop = true; // should exit_loop() be called in sendEvent()?
441 _do_exit_loop = false;
443 event = _event_handler.consumePendingEvent();
445 // Display a busy cursor, but only if there is no other activity within
446 // BUSY_CURSOR_TIMEOUT milliseconds (avoid cursor flicker)
448 _busy_cursor_timer->start( BUSY_CURSOR_TIMEOUT ); // single shot
451 if ( _user_input_timer.isActive() )
452 _user_input_timer.stop();
458 YEvent * YQUI::pollInput()
462 if ( _user_input_timer.isActive() )
463 _user_input_timer.stop();
465 if ( ! pendingEvent() )
467 YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog( false ) );
471 //qApp->processEvents();
472 event = _event_handler.consumePendingEvent();
476 if ( pendingEvent() )
477 event = _event_handler.consumePendingEvent();
483 void YQUI::userInputTimeout()
485 if ( ! pendingEvent() )
486 sendEvent( new YTimeoutEvent() );
490 #warning FIXME Move this to Y(Q)Dialog (and rename it to ::finalize()?)
491 void YQUI::showDialog( YDialog * dialog )
493 QWidget * qw = (QWidget *) dialog->widgetRep();
502 ( (YQDialog *) dialog)->ensureOnlyOneDefaultButton();
504 //qApp->processEvents();
508 void YQUI::closeDialog( YDialog * dialog )
513 QString YQUI::productName() const
515 return fromUTF8( YUI::productName() );
520 YQUI::setTextdomain( const char * domain )
522 bindtextdomain( domain, LOCALEDIR );
523 bind_textdomain_codeset( domain, "utf8" );
524 textdomain( domain );
526 // Make change known.
528 extern int _nl_msg_cat_cntr;
534 void YQUI::blockEvents( bool block )
538 if ( ++blocked_level == 1 )
540 _event_handler.blockEvents( true );
546 if ( --blocked_level == 0 )
548 _event_handler.blockEvents( false );
549 _eventLoop->wakeUp();
555 bool YQUI::eventsBlocked() const
557 return _event_handler.eventsBlocked();
561 qMessageHandler( QtMsgType type, const char * msg )
566 y2milestone ("qt-debug: %s\n", msg);
569 y2warning ("qt-warning: %s\n", msg);
573 y2warning ("qt-critical: %s\n", msg);
576 y2internal ("qt-fatal: %s\n", msg);
577 exit (1); // qt does the same