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         socket_notifiers_.clear();
 256 }
 257
 258
 259 FuncStatus GuiApplication::getStatus(FuncRequest const & cmd)
 260 {
 261         FuncStatus flag;
 262         bool enable = true;
 263
 264         switch(cmd.action) {
 265
 266         case LFUN_WINDOW_CLOSE:
 267                 enable = view_ids_.size() > 0;
 268                 break;
 269
 270         default:
 271                 if (!current_view_) {
 272                         enable = false;
 273                         break;
 274                 }
 275         }
 276
 277         if (!enable)
 278                 flag.enabled(false);
 279
 280         return flag;
 281 }
 282
 283
 284 bool GuiApplication::dispatch(FuncRequest const & cmd)
 285 {
 286         switch(cmd.action) {
 287
 288         case LFUN_WINDOW_NEW:
 289                 createView(toqstr(cmd.argument()));
 290                 break;
 291
 292         case LFUN_WINDOW_CLOSE:
 293                 // update bookmark pit of the current buffer before window close
 294                 for (size_t i = 0; i < LyX::ref().session().bookmarks().size(); ++i)
 295                         theLyXFunc().gotoBookmark(i+1, false, false);
 296                 current_view_->close();
 297                 break;
 298
 299         case LFUN_LYX_QUIT:
 300                 // quitting is triggered by the gui code
 301                 // (leaving the event loop).
 302                 if (current_view_)
 303                         current_view_->message(from_utf8(N_("Exiting.")));
 304                 if (closeAllViews())
 305                         quit();
 306                 break;
 307
 308         case LFUN_SCREEN_FONT_UPDATE: {
 309                 // handle the screen font changes.
 310                 font_loader_.update();
 311                 // Backup current_view_
 312                 GuiView * view = current_view_;
 313                 // Set current_view_ to zero to forbid GuiWorkArea::redraw()
 314                 // to skip the refresh.
 315                 current_view_ = 0;
 316                 BufferList::iterator it = theBufferList().begin();
 317                 BufferList::iterator const end = theBufferList().end();
 318                 for (; it != end; ++it)
 319                         (*it)->changed();
 320                 // Restore current_view_
 321                 current_view_ = view;
 322                 break;
 323         }
 324
 325         case LFUN_BUFFER_NEW:
 326                 if (viewCount() == 0
 327                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 328                         createView(QString(), false); // keep hidden
 329                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 330                         current_view_->show();
 331                         setActiveWindow(current_view_);
 332                 } else
 333                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 334                 break;
 335
 336         case LFUN_BUFFER_NEW_TEMPLATE:
 337                 if (viewCount() == 0
 338                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 339                         createView();
 340                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 341                         if (!current_view_->buffer())
 342                                 current_view_->close();
 343                 } else
 344                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 345                 break;
 346
 347         case LFUN_FILE_OPEN:
 348                 if (viewCount() == 0
 349                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 350                         createView();
 351                         current_view_->openDocument(to_utf8(cmd.argument()));
 352                         if (!current_view_->buffer())
 353                                 current_view_->close();
 354                 } else
 355                         current_view_->openDocument(to_utf8(cmd.argument()));
 356                 break;
 357
 358         default:
 359                 // Notify the caller that the action has not been dispatched.
 360                 return false;
 361         }
 362
 363         // The action has been dispatched.
 364         return true;
 365 }
 366
 367
 368 void GuiApplication::resetGui()
 369 {
 370         map<int, GuiView *>::iterator it;
 371         for (it = views_.begin(); it != views_.end(); ++it)
 372                 it->second->resetDialogs();
 373
 374         dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
 375 }
 376
 377
 378 static void updateIds(map<int, GuiView *> const & stdmap, vector<int> & ids)
 379 {
 380         ids.clear();
 381         map<int, GuiView *>::const_iterator it;
 382         for (it = stdmap.begin(); it != stdmap.end(); ++it)
 383                 ids.push_back(it->first);
 384 }
 385
 386
 387 void GuiApplication::createView(QString const & geometry_arg, bool autoShow)
 388 {
 389         // release the keyboard which might have been grabed by the global
 390         // menubar on Mac to catch shortcuts even without any GuiView.
 391         if (global_menubar_)
 392                 global_menubar_->releaseKeyboard();
 393
 394         // create new view
 395         updateIds(views_, view_ids_);
 396         int id = 0;
 397         while (views_.find(id) != views_.end())
 398                 id++;
 399         GuiView * view = new GuiView(id);
 400
 401         // copy the icon size from old view
 402         if (viewCount() > 0)
 403                 view->setIconSize(current_view_->iconSize());
 404
 405         // register view
 406         views_[id] = view;
 407         updateIds(views_, view_ids_);
 408
 409         if (autoShow) {
 410                 view->show();
 411                 setActiveWindow(view);
 412         }
 413
 414         if (!geometry_arg.isEmpty()) {
 415 #ifdef Q_WS_WIN
 416                 int x, y;
 417                 int w, h;
 418                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 419                 re.indexIn(geometry_arg);
 420                 w = re.cap(1).toInt();
 421                 h = re.cap(2).toInt();
 422                 x = re.cap(3).toInt();
 423                 y = re.cap(4).toInt();
 424                 view->setGeometry(x, y, w, h);
 425 #endif
 426         }
 427         view->setFocus();
 428         setCurrentView(view);
 429 }
 430
 431
 432
 433
 434 Clipboard & GuiApplication::clipboard()
 435 {
 436         return clipboard_;
 437 }
 438
 439
 440 Selection & GuiApplication::selection()
 441 {
 442         return selection_;
 443 }
 444
 445
 446 int GuiApplication::exec()
 447 {
 448         QTimer::singleShot(1, this, SLOT(execBatchCommands()));
 449         return QApplication::exec();
 450 }
 451
 452
 453 void GuiApplication::exit(int status)
 454 {
 455         QApplication::exit(status);
 456 }
 457
 458
 459 void GuiApplication::execBatchCommands()
 460 {
 461         LyX::ref().execBatchCommands();
 462
 463         language_model_ = new QStandardItemModel(this);
 464         language_model_->insertColumns(0, 1);
 465         int current_row;
 466         Languages::const_iterator it = languages.begin();
 467         Languages::const_iterator end = languages.end();
 468         for (; it != end; ++it) {
 469                 current_row = language_model_->rowCount();
 470                 language_model_->insertRows(current_row, 1);
 471                 QModelIndex item = language_model_->index(current_row, 0);
 472                 language_model_->setData(item, qt_(it->second.display()), Qt::DisplayRole);
 473                 language_model_->setData(item, toqstr(it->second.lang()), Qt::UserRole);
 474         }
 475         language_model_->sort(0);
 476 }
 477
 478
 479 void GuiApplication::restoreGuiSession()
 480 {
 481         if (!lyxrc.load_session)
 482                 return;
 483
 484         Session & session = LyX::ref().session();
 485         vector<FileName> const & lastopened = session.lastOpened().getfiles();
 486         // do not add to the lastfile list since these files are restored from
 487         // last session, and should be already there (regular files), or should
 488         // not be added at all (help files).
 489         for_each(lastopened.begin(), lastopened.end(),
 490                 bind(&GuiView::loadDocument, current_view_, _1, false));
 491
 492         // clear this list to save a few bytes of RAM
 493         session.lastOpened().clear();
 494 }
 495
 496
 497 QString const GuiApplication::romanFontName()
 498 {
 499         QFont font;
 500         font.setKerning(false);
 501         font.setStyleHint(QFont::Serif);
 502         font.setFamily("serif");
 503
 504         return QFontInfo(font).family();
 505 }
 506
 507
 508 QString const GuiApplication::sansFontName()
 509 {
 510         QFont font;
 511         font.setKerning(false);
 512         font.setStyleHint(QFont::SansSerif);
 513         font.setFamily("sans");
 514
 515         return QFontInfo(font).family();
 516 }
 517
 518
 519 QString const GuiApplication::typewriterFontName()
 520 {
 521         QFont font;
 522         font.setKerning(false);
 523         font.setStyleHint(QFont::TypeWriter);
 524         font.setFamily("monospace");
 525
 526         return QFontInfo(font).family();
 527 }
 528
 529
 530 void GuiApplication::handleRegularEvents()
 531 {
 532         ForkedCallsController::handleCompletedProcesses();
 533 }
 534
 535
 536 bool GuiApplication::event(QEvent * e)
 537 {
 538         switch(e->type()) {
 539         case QEvent::FileOpen: {
 540                 // Open a file; this happens only on Mac OS X for now
 541                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
 542
 543                 if (!current_view_ || !current_view_->view())
 544                         // The application is not properly initialized yet.
 545                         // So we acknowledge the event and delay the file opening
 546                         // until LyX is ready.
 547                         // FIXME UNICODE: FileName accept an utf8 encoded string.
 548                         LyX::ref().addFileToLoad(fromqstr(foe->file()));
 549                 else
 550                         lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
 551                                 qstring_to_ucs4(foe->file())));
 552
 553                 e->accept();
 554                 return true;
 555         }
 556         default:
 557                 return QApplication::event(e);
 558         }
 559 }
 560
 561
 562 bool GuiApplication::notify(QObject * receiver, QEvent * event)
 563 {
 564         try {
 565                 return QApplication::notify(receiver, event);
 566         }
 567         catch (ExceptionMessage const & e) {
 568                 switch(e.type_) {
 569                 case ErrorException:
 570                         LyX::cref().emergencyCleanup();
 571                         setQuitOnLastWindowClosed(false);
 572                         closeAllViews();
 573                         Alert::error(e.title_, e.details_);
 574 #ifndef NDEBUG
 575                         // Properly crash in debug mode in order to get a useful backtrace.
 576                         abort();
 577 #endif
 578                         // In release mode, try to exit gracefully.
 579                         this->exit(1);
 580
 581                 case BufferException: {
 582                         Buffer * buf = current_view_->buffer();
 583                         docstring details = e.details_ + '\n';
 584                         details += theBufferList().emergencyWrite(buf);
 585                         theBufferList().release(buf);
 586                         details += "\n" + _("The current document was closed.");
 587                         Alert::error(e.title_, details);
 588                         return false;
 589                 }
 590                 case WarningException:
 591                         Alert::warning(e.title_, e.details_);
 592                         return false;
 593                 }
 594         }
 595         catch (exception const & e) {
 596                 docstring s = _("LyX has caught an exception, it will now "
 597                         "attempt to save all unsaved documents and exit."
 598                         "\n\nException: ");
 599                 s += from_ascii(e.what());
 600                 Alert::error(_("Software exception Detected"), s);
 601                 LyX::cref().exit(1);
 602         }
 603         catch (...) {
 604                 docstring s = _("LyX has caught some really weird exception, it will "
 605                         "now attempt to save all unsaved documents and exit.");
 606                 Alert::error(_("Software exception Detected"), s);
 607                 LyX::cref().exit(1);
 608         }
 609
 610         return false;
 611 }
 612
 613
 614 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
 615 {
 616         QColor const & qcol = color_cache_.get(col);
 617         if (!qcol.isValid()) {
 618                 rgbcol.r = 0;
 619                 rgbcol.g = 0;
 620                 rgbcol.b = 0;
 621                 return false;
 622         }
 623         rgbcol.r = qcol.red();
 624         rgbcol.g = qcol.green();
 625         rgbcol.b = qcol.blue();
 626         return true;
 627 }
 628
 629
 630 string const GuiApplication::hexName(ColorCode col)
 631 {
 632         return ltrim(fromqstr(color_cache_.get(col).name()), "#");
 633 }
 634
 635
 636 void GuiApplication::updateColor(ColorCode)
 637 {
 638         // FIXME: Bleh, can't we just clear them all at once ?
 639         color_cache_.clear();
 640 }
 641
 642
 643 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
 644 {
 645         SocketNotifier * sn = new SocketNotifier(this, fd, func);
 646         socket_notifiers_[fd] = sn;
 647         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
 648 }
 649
 650
 651 void GuiApplication::socketDataReceived(int fd)
 652 {
 653         socket_notifiers_[fd]->func_();
 654 }
 655
 656
 657 void GuiApplication::unregisterSocketCallback(int fd)
 658 {
 659         socket_notifiers_.erase(fd);
 660 }
 661
 662
 663 void GuiApplication::commitData(QSessionManager & sm)
 664 {
 665         /// The implementation is required to avoid an application exit
 666         /// when session state save is triggered by session manager.
 667         /// The default implementation sends a close event to all
 668         /// visible top level widgets when session managment allows
 669         /// interaction.
 670         /// We are changing that to close all wiew one by one.
 671         /// FIXME: verify if the default implementation is enough now.
 672         if (sm.allowsInteraction() && !closeAllViews())
 673                 sm.cancel();
 674 }
 675
 676
 677 void GuiApplication::addMenuTranslator()
 678 {
 679         installTranslator(new MenuTranslator(this));
 680 }
 681
 682
 683 bool GuiApplication::unregisterView(int id)
 684 {
 685         updateIds(views_, view_ids_);
 686         LASSERT(views_.find(id) != views_.end(), /**/);
 687         LASSERT(views_[id], /**/);
 688
 689         map<int, GuiView *>::iterator it;
 690         for (it = views_.begin(); it != views_.end(); ++it) {
 691                 if (it->first == id) {
 692                         views_.erase(id);
 693                         break;
 694                 }
 695         }
 696         updateIds(views_, view_ids_);
 697         return true;
 698 }
 699
 700
 701 bool GuiApplication::closeAllViews()
 702 {
 703         updateIds(views_, view_ids_);
 704         if (views_.empty())
 705                 return true;
 706
 707         map<int, GuiView*> const cmap = views_;
 708         map<int, GuiView*>::const_iterator it;
 709         for (it = cmap.begin(); it != cmap.end(); ++it) {
 710                 if (!it->second->close())
 711                         return false;
 712         }
 713
 714         views_.clear();
 715         view_ids_.clear();
 716         return true;
 717 }
 718
 719
 720 GuiView & GuiApplication::view(int id) const
 721 {
 722         LASSERT(views_.find(id) != views_.end(), /**/);
 723         return *views_.find(id)->second;
 724 }
 725
 726
 727 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
 728 {
 729         vector<int>::const_iterator it = view_ids_.begin();
 730         vector<int>::const_iterator const end = view_ids_.end();
 731         for (; it != end; ++it)
 732                 view(*it).hideDialog(name, inset);
 733 }
 734
 735
 736 Buffer const * GuiApplication::updateInset(Inset const * inset) const
 737 {
 738         Buffer const * buffer_ = 0;
 739         vector<int>::const_iterator it = view_ids_.begin();
 740         vector<int>::const_iterator const end = view_ids_.end();
 741         for (; it != end; ++it) {
 742                 Buffer const * ptr = view(*it).updateInset(inset);
 743                 if (ptr)
 744                         buffer_ = ptr;
 745         }
 746         return buffer_;
 747 }
 748
 749
 750 void GuiApplication::readMenus(Lexer & lex)
 751 {
 752         menus().read(lex);
 753 }
 754
 755
 756 bool GuiApplication::searchMenu(FuncRequest const & func,
 757         vector<docstring> & names) const
 758 {
 759         return menus().searchMenu(func, names);
 760 }
 761
 762
 763 void GuiApplication::initGlobalMenu()
 764 {
 765         if (global_menubar_)
 766                 menus().fillMenuBar(global_menubar_, 0, true);
 767 }
 768
 769
 770 void GuiApplication::onLastWindowClosed()
 771 {
 772         if (global_menubar_)
 773                 global_menubar_->grabKeyboard();
 774 }
 775
 776
 777 ////////////////////////////////////////////////////////////////////////
 778 //
 779 // X11 specific stuff goes here...
 780
 781 #ifdef Q_WS_X11
 782 bool GuiApplication::x11EventFilter(XEvent * xev)
 783 {
 784         if (!current_view_)
 785                 return false;
 786
 787         switch (xev->type) {
 788         case SelectionRequest: {
 789                 if (xev->xselectionrequest.selection != XA_PRIMARY)
 790                         break;
 791                 LYXERR(Debug::GUI, "X requested selection.");
 792                 BufferView * bv = current_view_->view();
 793                 if (bv) {
 794                         docstring const sel = bv->requestSelection();
 795                         if (!sel.empty())
 796                                 selection_.put(sel);
 797                 }
 798                 break;
 799         }
 800         case SelectionClear: {
 801                 if (xev->xselectionclear.selection != XA_PRIMARY)
 802                         break;
 803                 LYXERR(Debug::GUI, "Lost selection.");
 804                 BufferView * bv = current_view_->view();
 805                 if (bv)
 806                         bv->clearSelection();
 807                 break;
 808         }
 809         }
 810         return false;
 811 }
 812 #endif
 813
 814 } // namespace frontend
 815
 816
 817 void hideDialogs(std::string const & name, Inset * inset)
 818 {
 819         if (theApp())
 820                 theApp()->hideDialogs(name, inset);
 821 }
 822
 823
 824 ////////////////////////////////////////////////////////////////////
 825 //
 826 // Font stuff
 827 //
 828 ////////////////////////////////////////////////////////////////////
 829
 830 frontend::FontLoader & theFontLoader()
 831 {
 832         LASSERT(frontend::guiApp, /**/);
 833         return frontend::guiApp->fontLoader();
 834 }
 835
 836
 837 frontend::FontMetrics const & theFontMetrics(Font const & f)
 838 {
 839         return theFontMetrics(f.fontInfo());
 840 }
 841
 842
 843 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
 844 {
 845         LASSERT(frontend::guiApp, /**/);
 846         return frontend::guiApp->fontLoader().metrics(f);
 847 }
 848
 849
 850 ////////////////////////////////////////////////////////////////////
 851 //
 852 // Misc stuff
 853 //
 854 ////////////////////////////////////////////////////////////////////
 855
 856 frontend::Clipboard & theClipboard()
 857 {
 858         LASSERT(frontend::guiApp, /**/);
 859         return frontend::guiApp->clipboard();
 860 }
 861
 862
 863 frontend::Selection & theSelection()
 864 {
 865         LASSERT(frontend::guiApp, /**/);
 866         return frontend::guiApp->selection();
 867 }
 868
 869 } // namespace lyx
 870
 871 #include "GuiApplication_moc.cpp"