src/frontends/qt4/GuiApplication.cpp

   1 /**
   2  * \file GuiApplication.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "GuiApplication.h"
  16
  17 #include "qt_helpers.h"
  18 #include "GuiImage.h"
  19 #include "GuiKeySymbol.h"
  20 #include "GuiView.h"
  21
  22 #include "frontends/alert.h"
  23 #include "frontends/Application.h"
  24 #include "frontends/FontLoader.h"
  25 #include "frontends/FontMetrics.h"
  26
  27 #include "Buffer.h"
  28 #include "BufferList.h"
  29 #include "BufferView.h"
  30 #include "Font.h"
  31 #include "FuncRequest.h"
  32 #include "FuncStatus.h"
  33 #include "Language.h"
  34 #include "LyX.h"
  35 #include "LyXFunc.h"
  36 #include "LyXRC.h"
  37 #include "Session.h"
  38 #include "version.h"
  39
  40 #include "support/lassert.h"
  41 #include "support/debug.h"
  42 #include "support/ExceptionMessage.h"
  43 #include "support/FileName.h"
  44 #include "support/ForkedCalls.h"
  45 #include "support/gettext.h"
  46 #include "support/lstrings.h"
  47 #include "support/os.h"
  48 #include "support/Package.h"
  49
  50 #include <QClipboard>
  51 #include <QEventLoop>
  52 #include <QFileOpenEvent>
  53 #include <QLocale>
  54 #include <QLibraryInfo>
  55 #include <QMenuBar>
  56 #include <QPixmapCache>
  57 #include <QRegExp>
  58 #include <QSessionManager>
  59 #include <QSocketNotifier>
  60 #include <QStandardItemModel>
  61 #include <QTextCodec>
  62 #include <QTimer>
  63 #include <QTranslator>
  64 #include <QWidget>
  65
  66 #ifdef Q_WS_X11
  67 #include <X11/Xatom.h>
  68 #include <X11/Xlib.h>
  69 #undef CursorShape
  70 #undef None
  71 #endif
  72
  73 #include <boost/bind.hpp>
  74
  75 #include <exception>
  76
  77 using namespace std;
  78 using namespace lyx::support;
  79
  80 namespace lyx {
  81
  82 frontend::Application * createApplication(int & argc, char * argv[])
  83 {
  84         return new frontend::GuiApplication(argc, argv);
  85 }
  86
  87
  88 namespace frontend {
  89
  90 class SocketNotifier : public QSocketNotifier
  91 {
  92 public:
  93         /// connect a connection notification from the LyXServerSocket
  94         SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
  95                 : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
  96         {}
  97
  98 public:
  99         /// The callback function
 100         Application::SocketCallback func_;
 101 };
 102
 103
 104 ////////////////////////////////////////////////////////////////////////
 105 // Mac specific stuff goes here...
 106
 107 class MenuTranslator : public QTranslator
 108 {
 109 public:
 110         MenuTranslator(QObject * parent)
 111                 : QTranslator(parent)
 112         {}
 113
 114         QString translate(const char * /*context*/,
 115           const char * sourceText,
 116           const char * /*comment*/ = 0)
 117         {
 118                 string const s = sourceText;
 119                 if (s == N_("About %1") || s == N_("Preferences")
 120                                 || s == N_("Reconfigure") || s == N_("Quit %1"))
 121                         return qt_(s);
 122                 else
 123                         return QString();
 124         }
 125 };
 126
 127 class GlobalMenuBar : public QMenuBar
 128 {
 129 public:
 130         ///
 131         GlobalMenuBar() : QMenuBar(0) {}
 132
 133         ///
 134         bool event(QEvent * e)
 135         {
 136                 if (e->type() == QEvent::ShortcutOverride) {
 137                         //          && activeWindow() == 0) {
 138                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 139                         KeySymbol sym;
 140                         setKeySymbol(&sym, ke);
 141                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 142                         e->accept();
 143                         return true;
 144                 }
 145                 return false;
 146         }
 147 };
 148
 149 ///////////////////////////////////////////////////////////////
 150 // You can find more platform specific stuff
 151 // at the end of this file...
 152 ///////////////////////////////////////////////////////////////
 153
 154
 155 GuiApplication * guiApp;
 156
 157
 158 GuiApplication::GuiApplication(int & argc, char ** argv)
 159         : QApplication(argc, argv), Application(), current_view_(0), global_menubar_(0)
 160 {
 161         QString app_name = "LyX";
 162         QCoreApplication::setOrganizationName(app_name);
 163         QCoreApplication::setOrganizationDomain("lyx.org");
 164         QCoreApplication::setApplicationName(app_name + "-" + lyx_version);
 165
 166         // FIXME: quitOnLastWindowClosed is true by default. We should have a
 167         // lyxrc setting for this in order to let the application stay resident.
 168         // But then we need some kind of dock icon, at least on Windows.
 169         /*
 170         if (lyxrc.quit_on_last_window_closed)
 171                 setQuitOnLastWindowClosed(false);
 172         */
 173 #ifdef Q_WS_MACX
 174         // FIXME: Do we need a lyxrc setting for this on Mac? This behaviour
 175         // seems to be the default case for applications like LyX.
 176         setQuitOnLastWindowClosed(false);
 177 #endif
 178
 179 #ifdef Q_WS_X11
 180         // doubleClickInterval() is 400 ms on X11 which is just too long.
 181         // On Windows and Mac OS X, the operating system's value is used.
 182         // On Microsoft Windows, calling this function sets the double
 183         // click interval for all applications. So we don't!
 184         QApplication::setDoubleClickInterval(300);
 185 #endif
 186
 187         // install translation file for Qt built-in dialogs
 188         QString language_name = QString("qt_") + QLocale::system().name();
 189
 190         // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
 191         // Short-named translator can be loaded from a long name, but not the
 192         // opposite. Therefore, long name should be used without truncation.
 193         // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
 194         if (qt_trans_.load(language_name,
 195                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 196         {
 197                 installTranslator(&qt_trans_);
 198                 // even if the language calls for RtL, don't do that
 199                 setLayoutDirection(Qt::LeftToRight);
 200                 LYXERR(Debug::GUI, "Successfully installed Qt translations for locale "
 201                         << language_name);
 202         } else
 203                 LYXERR(Debug::GUI, "Could not find  Qt translations for locale "
 204                         << language_name);
 205
 206 #ifdef Q_WS_MACX
 207         // This allows to translate the strings that appear in the LyX menu.
 208         addMenuTranslator();
 209 #endif
 210         connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
 211
 212         using namespace lyx::graphics;
 213
 214         Image::newImage = boost::bind(&GuiImage::newImage);
 215         Image::loadableFormats = boost::bind(&GuiImage::loadableFormats);
 216
 217         // needs to be done before reading lyxrc
 218         QWidget w;
 219         lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
 220
 221         guiApp = this;
 222
 223         // Set the cache to 5120 kilobytes which corresponds to screen size of
 224         // 1280 by 1024 pixels with a color depth of 32 bits.
 225         QPixmapCache::setCacheLimit(5120);
 226
 227         // Initialize RC Fonts
 228         if (lyxrc.roman_font_name.empty())
 229                 lyxrc.roman_font_name = fromqstr(romanFontName());
 230
 231         if (lyxrc.sans_font_name.empty())
 232                 lyxrc.sans_font_name = fromqstr(sansFontName());
 233
 234         if (lyxrc.typewriter_font_name.empty())
 235                 lyxrc.typewriter_font_name = fromqstr(typewriterFontName());
 236
 237         general_timer_.setInterval(500);
 238         connect(&general_timer_, SIGNAL(timeout()),
 239                 this, SLOT(handleRegularEvents()));
 240         general_timer_.start();
 241
 242
 243 #ifdef Q_WS_MACX
 244         if (global_menubar_ == 0) {
 245                 // Create the global default menubar which is shown for the dialogs
 246                 // and if no GuiView is visible.
 247                 global_menubar_ = new GlobalMenuBar();
 248         }
 249 #endif
 250 }
 251
 252
 253 GuiApplication::~GuiApplication()
 254 {}
 255
 256
 257 FuncStatus GuiApplication::getStatus(FuncRequest const & cmd)
 258 {
 259         FuncStatus flag;
 260         bool enable = true;
 261
 262         switch(cmd.action) {
 263
 264         case LFUN_WINDOW_CLOSE:
 265                 enable = view_ids_.size() > 0;
 266                 break;
 267
 268         default:
 269                 if (!current_view_) {
 270                         enable = false;
 271                         break;
 272                 }
 273         }
 274
 275         if (!enable)
 276                 flag.enabled(false);
 277
 278         return flag;
 279 }
 280
 281
 282 bool GuiApplication::dispatch(FuncRequest const & cmd)
 283 {
 284         switch(cmd.action) {
 285
 286         case LFUN_WINDOW_NEW:
 287                 createView(toqstr(cmd.argument()));
 288                 break;
 289
 290         case LFUN_WINDOW_CLOSE:
 291                 // update bookmark pit of the current buffer before window close
 292                 for (size_t i = 0; i < LyX::ref().session().bookmarks().size(); ++i)
 293                         theLyXFunc().gotoBookmark(i+1, false, false);
 294                 current_view_->close();
 295                 break;
 296
 297         case LFUN_LYX_QUIT:
 298                 // quitting is triggered by the gui code
 299                 // (leaving the event loop).
 300                 if (current_view_)
 301                         current_view_->message(from_utf8(N_("Exiting.")));
 302                 if (closeAllViews())
 303                         quit();
 304                 break;
 305
 306         case LFUN_SCREEN_FONT_UPDATE: {
 307                 // handle the screen font changes.
 308                 font_loader_.update();
 309                 // Backup current_view_
 310                 GuiView * view = current_view_;
 311                 // Set current_view_ to zero to forbid GuiWorkArea::redraw()
 312                 // to skip the refresh.
 313                 current_view_ = 0;
 314                 BufferList::iterator it = theBufferList().begin();
 315                 BufferList::iterator const end = theBufferList().end();
 316                 for (; it != end; ++it)
 317                         (*it)->changed();
 318                 // Restore current_view_
 319                 current_view_ = view;
 320                 break;
 321         }
 322
 323         case LFUN_BUFFER_NEW:
 324                 if (viewCount() == 0
 325                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 326                         createView(QString(), false); // keep hidden
 327                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 328                         current_view_->show();
 329                         setActiveWindow(current_view_);
 330                 } else
 331                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 332                 break;
 333
 334         case LFUN_BUFFER_NEW_TEMPLATE:
 335                 if (viewCount() == 0
 336                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 337                         createView();
 338                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 339                         if (!current_view_->buffer())
 340                                 current_view_->close();
 341                 } else
 342                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 343                 break;
 344
 345         case LFUN_FILE_OPEN:
 346                 if (viewCount() == 0
 347                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 348                         createView();
 349                         current_view_->openDocument(to_utf8(cmd.argument()));
 350                         if (!current_view_->buffer())
 351                                 current_view_->close();
 352                 } else
 353                         current_view_->openDocument(to_utf8(cmd.argument()));
 354                 break;
 355
 356         default:
 357                 // Notify the caller that the action has not been dispatched.
 358                 return false;
 359         }
 360
 361         // The action has been dispatched.
 362         return true;
 363 }
 364
 365
 366 void GuiApplication::resetGui()
 367 {
 368         map<int, GuiView *>::iterator it;
 369         for (it = views_.begin(); it != views_.end(); ++it)
 370                 it->second->resetDialogs();
 371
 372         dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
 373 }
 374
 375
 376 static void updateIds(map<int, GuiView *> const & stdmap, vector<int> & ids)
 377 {
 378         ids.clear();
 379         map<int, GuiView *>::const_iterator it;
 380         for (it = stdmap.begin(); it != stdmap.end(); ++it)
 381                 ids.push_back(it->first);
 382 }
 383
 384
 385 void GuiApplication::createView(QString const & geometry_arg, bool autoShow)
 386 {
 387         // release the keyboard which might have been grabed by the global
 388         // menubar on Mac to catch shortcuts even without any GuiView.
 389         if (global_menubar_)
 390                 global_menubar_->releaseKeyboard();
 391
 392         // create new view
 393         updateIds(views_, view_ids_);
 394         int id = 0;
 395         while (views_.find(id) != views_.end())
 396                 id++;
 397         GuiView * view = new GuiView(id);
 398
 399         // copy the icon size from old view
 400         if (viewCount() > 0)
 401                 view->setIconSize(current_view_->iconSize());
 402
 403         // register view
 404         views_[id] = view;
 405         updateIds(views_, view_ids_);
 406
 407         if (autoShow) {
 408                 view->show();
 409                 setActiveWindow(view);
 410         }
 411
 412         if (!geometry_arg.isEmpty()) {
 413 #ifdef Q_WS_WIN
 414                 int x, y;
 415                 int w, h;
 416                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 417                 re.indexIn(geometry_arg);
 418                 w = re.cap(1).toInt();
 419                 h = re.cap(2).toInt();
 420                 x = re.cap(3).toInt();
 421                 y = re.cap(4).toInt();
 422                 view->setGeometry(x, y, w, h);
 423 #endif
 424         }
 425         view->setFocus();
 426         setCurrentView(view);
 427 }
 428
 429
 430
 431
 432 Clipboard & GuiApplication::clipboard()
 433 {
 434         return clipboard_;
 435 }
 436
 437
 438 Selection & GuiApplication::selection()
 439 {
 440         return selection_;
 441 }
 442
 443
 444 int GuiApplication::exec()
 445 {
 446         QTimer::singleShot(1, this, SLOT(execBatchCommands()));
 447         return QApplication::exec();
 448 }
 449
 450
 451 void GuiApplication::exit(int status)
 452 {
 453         QApplication::exit(status);
 454 }
 455
 456
 457 void GuiApplication::execBatchCommands()
 458 {
 459         LyX::ref().execBatchCommands();
 460
 461         language_model_ = new QStandardItemModel(this);
 462         language_model_->insertColumns(0, 1);
 463         int current_row;
 464         Languages::const_iterator it = languages.begin();
 465         Languages::const_iterator end = languages.end();
 466         for (; it != end; ++it) {
 467                 current_row = language_model_->rowCount();
 468                 language_model_->insertRows(current_row, 1);
 469                 QModelIndex item = language_model_->index(current_row, 0);
 470                 language_model_->setData(item, qt_(it->second.display()), Qt::DisplayRole);
 471                 language_model_->setData(item, toqstr(it->second.lang()), Qt::UserRole);
 472         }
 473         language_model_->sort(0);
 474 }
 475
 476
 477 void GuiApplication::restoreGuiSession()
 478 {
 479         if (!lyxrc.load_session)
 480                 return;
 481
 482         Session & session = LyX::ref().session();
 483         vector<FileName> const & lastopened = session.lastOpened().getfiles();
 484         // do not add to the lastfile list since these files are restored from
 485         // last session, and should be already there (regular files), or should
 486         // not be added at all (help files).
 487         for_each(lastopened.begin(), lastopened.end(),
 488                 bind(&GuiView::loadDocument, current_view_, _1, false));
 489
 490         // clear this list to save a few bytes of RAM
 491         session.lastOpened().clear();
 492 }
 493
 494
 495 QString const GuiApplication::romanFontName()
 496 {
 497         QFont font;
 498         font.setKerning(false);
 499         font.setStyleHint(QFont::Serif);
 500         font.setFamily("serif");
 501
 502         return QFontInfo(font).family();
 503 }
 504
 505
 506 QString const GuiApplication::sansFontName()
 507 {
 508         QFont font;
 509         font.setKerning(false);
 510         font.setStyleHint(QFont::SansSerif);
 511         font.setFamily("sans");
 512
 513         return QFontInfo(font).family();
 514 }
 515
 516
 517 QString const GuiApplication::typewriterFontName()
 518 {
 519         QFont font;
 520         font.setKerning(false);
 521         font.setStyleHint(QFont::TypeWriter);
 522         font.setFamily("monospace");
 523
 524         return QFontInfo(font).family();
 525 }
 526
 527
 528 void GuiApplication::handleRegularEvents()
 529 {
 530         ForkedCallsController::handleCompletedProcesses();
 531 }
 532
 533
 534 bool GuiApplication::event(QEvent * e)
 535 {
 536         switch(e->type()) {
 537         case QEvent::FileOpen: {
 538                 // Open a file; this happens only on Mac OS X for now
 539                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
 540
 541                 if (!current_view_ || !current_view_->view())
 542                         // The application is not properly initialized yet.
 543                         // So we acknowledge the event and delay the file opening
 544                         // until LyX is ready.
 545                         // FIXME UNICODE: FileName accept an utf8 encoded string.
 546                         LyX::ref().addFileToLoad(fromqstr(foe->file()));
 547                 else
 548                         lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
 549                                 qstring_to_ucs4(foe->file())));
 550
 551                 e->accept();
 552                 return true;
 553         }
 554         default:
 555                 return QApplication::event(e);
 556         }
 557 }
 558
 559
 560 bool GuiApplication::notify(QObject * receiver, QEvent * event)
 561 {
 562         try {
 563                 return QApplication::notify(receiver, event);
 564         }
 565         catch (ExceptionMessage const & e) {
 566                 switch(e.type_) {
 567                 case ErrorException:
 568                         LyX::cref().emergencyCleanup();
 569                         setQuitOnLastWindowClosed(false);
 570                         closeAllViews();
 571                         Alert::error(e.title_, e.details_);
 572 #ifndef NDEBUG
 573                         // Properly crash in debug mode in order to get a useful backtrace.
 574                         abort();
 575 #endif
 576                         // In release mode, try to exit gracefully.
 577                         this->exit(1);
 578
 579                 case BufferException: {
 580                         Buffer * buf = current_view_->buffer();
 581                         docstring details = e.details_ + '\n';
 582                         details += theBufferList().emergencyWrite(buf);
 583                         theBufferList().release(buf);
 584                         details += "\n" + _("The current document was closed.");
 585                         Alert::error(e.title_, details);
 586                         return false;
 587                 }
 588                 case WarningException:
 589                         Alert::warning(e.title_, e.details_);
 590                         return false;
 591                 }
 592         }
 593         catch (exception const & e) {
 594                 docstring s = _("LyX has caught an exception, it will now "
 595                         "attempt to save all unsaved documents and exit."
 596                         "\n\nException: ");
 597                 s += from_ascii(e.what());
 598                 Alert::error(_("Software exception Detected"), s);
 599                 LyX::cref().exit(1);
 600         }
 601         catch (...) {
 602                 docstring s = _("LyX has caught some really weird exception, it will "
 603                         "now attempt to save all unsaved documents and exit.");
 604                 Alert::error(_("Software exception Detected"), s);
 605                 LyX::cref().exit(1);
 606         }
 607
 608         return false;
 609 }
 610
 611
 612 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
 613 {
 614         QColor const & qcol = color_cache_.get(col);
 615         if (!qcol.isValid()) {
 616                 rgbcol.r = 0;
 617                 rgbcol.g = 0;
 618                 rgbcol.b = 0;
 619                 return false;
 620         }
 621         rgbcol.r = qcol.red();
 622         rgbcol.g = qcol.green();
 623         rgbcol.b = qcol.blue();
 624         return true;
 625 }
 626
 627
 628 string const GuiApplication::hexName(ColorCode col)
 629 {
 630         return ltrim(fromqstr(color_cache_.get(col).name()), "#");
 631 }
 632
 633
 634 void GuiApplication::updateColor(ColorCode)
 635 {
 636         // FIXME: Bleh, can't we just clear them all at once ?
 637         color_cache_.clear();
 638 }
 639
 640
 641 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
 642 {
 643         SocketNotifier * sn = new SocketNotifier(this, fd, func);
 644         socket_notifiers_[fd] = sn;
 645         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
 646 }
 647
 648
 649 void GuiApplication::socketDataReceived(int fd)
 650 {
 651         socket_notifiers_[fd]->func_();
 652 }
 653
 654
 655 void GuiApplication::unregisterSocketCallback(int fd)
 656 {
 657         socket_notifiers_.erase(fd);
 658 }
 659
 660
 661 void GuiApplication::commitData(QSessionManager & sm)
 662 {
 663         /// The implementation is required to avoid an application exit
 664         /// when session state save is triggered by session manager.
 665         /// The default implementation sends a close event to all
 666         /// visible top level widgets when session managment allows
 667         /// interaction.
 668         /// We are changing that to close all wiew one by one.
 669         /// FIXME: verify if the default implementation is enough now.
 670         if (sm.allowsInteraction() && !closeAllViews())
 671                 sm.cancel();
 672 }
 673
 674
 675 void GuiApplication::addMenuTranslator()
 676 {
 677         installTranslator(new MenuTranslator(this));
 678 }
 679
 680
 681 bool GuiApplication::unregisterView(int id)
 682 {
 683         updateIds(views_, view_ids_);
 684         LASSERT(views_.find(id) != views_.end(), /**/);
 685         LASSERT(views_[id], /**/);
 686
 687         map<int, GuiView *>::iterator it;
 688         for (it = views_.begin(); it != views_.end(); ++it) {
 689                 if (it->first == id) {
 690                         views_.erase(id);
 691                         break;
 692                 }
 693         }
 694         updateIds(views_, view_ids_);
 695         return true;
 696 }
 697
 698
 699 bool GuiApplication::closeAllViews()
 700 {
 701         updateIds(views_, view_ids_);
 702         if (views_.empty())
 703                 return true;
 704
 705         map<int, GuiView*> const cmap = views_;
 706         map<int, GuiView*>::const_iterator it;
 707         for (it = cmap.begin(); it != cmap.end(); ++it) {
 708                 if (!it->second->close())
 709                         return false;
 710         }
 711
 712         views_.clear();
 713         view_ids_.clear();
 714         return true;
 715 }
 716
 717
 718 GuiView & GuiApplication::view(int id) const
 719 {
 720         LASSERT(views_.find(id) != views_.end(), /**/);
 721         return *views_.find(id)->second;
 722 }
 723
 724
 725 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
 726 {
 727         vector<int>::const_iterator it = view_ids_.begin();
 728         vector<int>::const_iterator const end = view_ids_.end();
 729         for (; it != end; ++it)
 730                 view(*it).hideDialog(name, inset);
 731 }
 732
 733
 734 Buffer const * GuiApplication::updateInset(Inset const * inset) const
 735 {
 736         Buffer const * buffer_ = 0;
 737         vector<int>::const_iterator it = view_ids_.begin();
 738         vector<int>::const_iterator const end = view_ids_.end();
 739         for (; it != end; ++it) {
 740                 Buffer const * ptr = view(*it).updateInset(inset);
 741                 if (ptr)
 742                         buffer_ = ptr;
 743         }
 744         return buffer_;
 745 }
 746
 747
 748 void GuiApplication::readMenus(Lexer & lex)
 749 {
 750         menus().read(lex);
 751 }
 752
 753
 754 bool GuiApplication::searchMenu(FuncRequest const & func,
 755         vector<docstring> & names) const
 756 {
 757         return menus().searchMenu(func, names);
 758 }
 759
 760
 761 void GuiApplication::initGlobalMenu()
 762 {
 763         if (global_menubar_)
 764                 menus().fillMenuBar(global_menubar_, 0, true);
 765 }
 766
 767
 768 void GuiApplication::onLastWindowClosed()
 769 {
 770         if (global_menubar_)
 771                 global_menubar_->grabKeyboard();
 772 }
 773
 774
 775 ////////////////////////////////////////////////////////////////////////
 776 //
 777 // X11 specific stuff goes here...
 778
 779 #ifdef Q_WS_X11
 780 bool GuiApplication::x11EventFilter(XEvent * xev)
 781 {
 782         if (!current_view_)
 783                 return false;
 784
 785         switch (xev->type) {
 786         case SelectionRequest: {
 787                 if (xev->xselectionrequest.selection != XA_PRIMARY)
 788                         break;
 789                 LYXERR(Debug::GUI, "X requested selection.");
 790                 BufferView * bv = current_view_->view();
 791                 if (bv) {
 792                         docstring const sel = bv->requestSelection();
 793                         if (!sel.empty())
 794                                 selection_.put(sel);
 795                 }
 796                 break;
 797         }
 798         case SelectionClear: {
 799                 if (xev->xselectionclear.selection != XA_PRIMARY)
 800                         break;
 801                 LYXERR(Debug::GUI, "Lost selection.");
 802                 BufferView * bv = current_view_->view();
 803                 if (bv)
 804                         bv->clearSelection();
 805                 break;
 806         }
 807         }
 808         return false;
 809 }
 810 #endif
 811
 812 } // namespace frontend
 813
 814
 815 void hideDialogs(std::string const & name, Inset * inset)
 816 {
 817         if (theApp())
 818                 theApp()->hideDialogs(name, inset);
 819 }
 820
 821
 822 ////////////////////////////////////////////////////////////////////
 823 //
 824 // Font stuff
 825 //
 826 ////////////////////////////////////////////////////////////////////
 827
 828 frontend::FontLoader & theFontLoader()
 829 {
 830         LASSERT(frontend::guiApp, /**/);
 831         return frontend::guiApp->fontLoader();
 832 }
 833
 834
 835 frontend::FontMetrics const & theFontMetrics(Font const & f)
 836 {
 837         return theFontMetrics(f.fontInfo());
 838 }
 839
 840
 841 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
 842 {
 843         LASSERT(frontend::guiApp, /**/);
 844         return frontend::guiApp->fontLoader().metrics(f);
 845 }
 846
 847
 848 ////////////////////////////////////////////////////////////////////
 849 //
 850 // Misc stuff
 851 //
 852 ////////////////////////////////////////////////////////////////////
 853
 854 frontend::Clipboard & theClipboard()
 855 {
 856         LASSERT(frontend::guiApp, /**/);
 857         return frontend::guiApp->clipboard();
 858 }
 859
 860
 861 frontend::Selection & theSelection()
 862 {
 863         LASSERT(frontend::guiApp, /**/);
 864         return frontend::guiApp->selection();
 865 }
 866
 867 } // namespace lyx
 868
 869 #include "GuiApplication_moc.cpp"