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 "ColorCache.h"
  18 #include "GuiClipboard.h"
  19 #include "GuiImage.h"
  20 #include "GuiKeySymbol.h"
  21 #include "GuiSelection.h"
  22 #include "GuiView.h"
  23 #include "Menus.h"
  24 #include "qt_helpers.h"
  25
  26 #include "frontends/alert.h"
  27 #include "frontends/Application.h"
  28 #include "frontends/FontLoader.h"
  29 #include "frontends/FontMetrics.h"
  30
  31 #include "Buffer.h"
  32 #include "BufferList.h"
  33 #include "BufferView.h"
  34 #include "Font.h"
  35 #include "FuncRequest.h"
  36 #include "FuncStatus.h"
  37 #include "Language.h"
  38 #include "LyX.h"
  39 #include "LyXFunc.h"
  40 #include "LyXRC.h"
  41 #include "Session.h"
  42 #include "version.h"
  43
  44 #include "support/lassert.h"
  45 #include "support/debug.h"
  46 #include "support/ExceptionMessage.h"
  47 #include "support/FileName.h"
  48 #include "support/ForkedCalls.h"
  49 #include "support/gettext.h"
  50 #include "support/lstrings.h"
  51 #include "support/os.h"
  52 #include "support/Package.h"
  53
  54 #ifdef Q_WS_MACX
  55 #include "support/linkback/LinkBackProxy.h"
  56 #endif
  57
  58 #include <QClipboard>
  59 #include <QEventLoop>
  60 #include <QFileOpenEvent>
  61 #include <QLocale>
  62 #include <QLibraryInfo>
  63 #include <QMacPasteboardMime>
  64 #include <QMenuBar>
  65 #include <QMimeData>
  66 #include <QPixmapCache>
  67 #include <QRegExp>
  68 #include <QSessionManager>
  69 #include <QSocketNotifier>
  70 #include <QSortFilterProxyModel>
  71 #include <QStandardItemModel>
  72 #include <QTextCodec>
  73 #include <QTimer>
  74 #include <QTranslator>
  75 #include <QWidget>
  76
  77 #ifdef Q_WS_X11
  78 #include <X11/Xatom.h>
  79 #include <X11/Xlib.h>
  80 #undef CursorShape
  81 #undef None
  82 #endif
  83
  84 #ifdef Q_WS_WIN
  85 #include <QVector>
  86 #include <QWindowsMime>
  87 #if defined(Q_CYGWIN_WIN) || defined(Q_CC_MINGW)
  88 #include <wtypes.h>
  89 #endif
  90 #include <objidl.h>
  91 #endif // Q_WS_WIN
  92
  93 #include <boost/bind.hpp>
  94
  95 #include <exception>
  96 #include <map>
  97
  98 using namespace std;
  99 using namespace lyx::support;
 100
 101 // FIXME: These strings are also used in GuiClipboard.cpp.
 102 static char const * const lyx_mime_type = "application/x-lyx";
 103 static char const * const pdf_mime_type = "application/pdf";
 104 static char const * const emf_mime_type = "image/x-emf";
 105 static char const * const wmf_mime_type = "image/x-wmf";
 106
 107 namespace lyx {
 108
 109 frontend::Application * createApplication(int & argc, char * argv[])
 110 {
 111         return new frontend::GuiApplication(argc, argv);
 112 }
 113
 114
 115 namespace frontend {
 116
 117 class SocketNotifier : public QSocketNotifier
 118 {
 119 public:
 120         /// connect a connection notification from the LyXServerSocket
 121         SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
 122                 : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
 123         {}
 124
 125 public:
 126         /// The callback function
 127         Application::SocketCallback func_;
 128 };
 129
 130
 131 ////////////////////////////////////////////////////////////////////////
 132 // Mac specific stuff goes here...
 133
 134 class MenuTranslator : public QTranslator
 135 {
 136 public:
 137         MenuTranslator(QObject * parent)
 138                 : QTranslator(parent)
 139         {}
 140
 141         QString translate(const char * /*context*/,
 142           const char * sourceText,
 143           const char * /*comment*/ = 0)
 144         {
 145                 string const s = sourceText;
 146                 if (s == N_("About %1") || s == N_("Preferences")
 147                                 || s == N_("Reconfigure") || s == N_("Quit %1"))
 148                         return qt_(s);
 149                 else
 150                         return QString();
 151         }
 152 };
 153
 154 class GlobalMenuBar : public QMenuBar
 155 {
 156 public:
 157         ///
 158         GlobalMenuBar() : QMenuBar(0) {}
 159
 160         ///
 161         bool event(QEvent * e)
 162         {
 163                 if (e->type() == QEvent::ShortcutOverride) {
 164                         //          && activeWindow() == 0) {
 165                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 166                         KeySymbol sym;
 167                         setKeySymbol(&sym, ke);
 168                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 169                         e->accept();
 170                         return true;
 171                 }
 172                 return false;
 173         }
 174 };
 175
 176 #ifdef Q_WS_MACX
 177 // QMacPasteboardMimeGraphics can only be compiled on Mac.
 178
 179 class QMacPasteboardMimeGraphics : public QMacPasteboardMime
 180 {
 181 public:
 182         QMacPasteboardMimeGraphics()
 183                 : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL)
 184         {}
 185
 186         QString convertorName() { return "Graphics"; }
 187
 188         QString flavorFor(QString const & mime)
 189         {
 190                 LYXERR(Debug::ACTION, "flavorFor " << mime);
 191                 if (mime == QLatin1String(pdf_mime_type))
 192                         return QLatin1String("com.adobe.pdf");
 193                 return QString();
 194         }
 195
 196         QString mimeFor(QString flav)
 197         {
 198                 LYXERR(Debug::ACTION, "mimeFor " << flav);
 199                 if (flav == QLatin1String("com.adobe.pdf"))
 200                         return QLatin1String(pdf_mime_type);
 201                 return QString();
 202         }
 203
 204         bool canConvert(QString const & mime, QString flav)
 205         { return mimeFor(flav) == mime; }
 206
 207         QVariant convertToMime(QString const & mime, QList<QByteArray> data, QString flav)
 208         {
 209                 if(data.count() > 1)
 210                         qWarning("QMacPasteboardMimeGraphics: Cannot handle multiple member data");
 211                 return data.first();
 212         }
 213
 214         QList<QByteArray> convertFromMime(QString const & mime, QVariant data, QString flav)
 215         {
 216                 QList<QByteArray> ret;
 217                 ret.append(data.toByteArray());
 218                 return ret;
 219         }
 220 };
 221 #endif
 222
 223 ///////////////////////////////////////////////////////////////
 224 // You can find more platform specific stuff
 225 // at the end of this file...
 226 ///////////////////////////////////////////////////////////////
 227
 228 ////////////////////////////////////////////////////////////////////////
 229 // Windows specific stuff goes here...
 230
 231 #ifdef Q_WS_WIN
 232 // QWindowsMimeMetafile can only be compiled on Windows.
 233
 234 static FORMATETC cfFromMime(QString const & mimetype)
 235 {
 236         FORMATETC formatetc;
 237         if (mimetype == emf_mime_type) {
 238                 formatetc.cfFormat = CF_ENHMETAFILE;
 239                 formatetc.tymed = TYMED_ENHMF;
 240         } else if (mimetype == wmf_mime_type) {
 241                 formatetc.cfFormat = CF_METAFILEPICT;
 242                 formatetc.tymed = TYMED_MFPICT;
 243         }
 244         formatetc.ptd = 0;
 245         formatetc.dwAspect = DVASPECT_CONTENT;
 246         formatetc.lindex = -1;
 247         return formatetc;
 248 }
 249
 250
 251 class QWindowsMimeMetafile : public QWindowsMime {
 252 public:
 253         QWindowsMimeMetafile() {}
 254
 255         bool canConvertFromMime(FORMATETC const & formatetc,
 256                 QMimeData const * mimedata) const
 257         {
 258                 return false;
 259         }
 260
 261         bool canConvertToMime(QString const & mimetype,
 262                 IDataObject * pDataObj) const
 263         {
 264                 if (mimetype != emf_mime_type && mimetype != wmf_mime_type)
 265                         return false;
 266                 FORMATETC formatetc = cfFromMime(mimetype);
 267                 return pDataObj->QueryGetData(&formatetc) == S_OK;
 268         }
 269
 270         bool convertFromMime(FORMATETC const & formatetc,
 271                 const QMimeData * mimedata, STGMEDIUM * pmedium) const
 272         {
 273                 return false;
 274         }
 275
 276         QVariant convertToMime(QString const & mimetype, IDataObject * pDataObj,
 277                 QVariant::Type preferredType) const
 278         {
 279                 QByteArray data;
 280                 if (!canConvertToMime(mimetype, pDataObj))
 281                         return data;
 282
 283                 FORMATETC formatetc = cfFromMime(mimetype);
 284                 STGMEDIUM s;
 285                 if (pDataObj->GetData(&formatetc, &s) != S_OK)
 286                         return data;
 287
 288                 int dataSize;
 289                 if (s.tymed == TYMED_ENHMF) {
 290                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0);
 291                         data.resize(dataSize);
 292                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize,
 293                                 (LPBYTE)data.data());
 294                 } else if (s.tymed == TYMED_MFPICT) {
 295                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0);
 296                         data.resize(dataSize);
 297                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize,
 298                                 (LPBYTE)data.data());
 299                 }
 300                 data.detach();
 301                 ReleaseStgMedium(&s);
 302
 303                 return data;
 304         }
 305
 306
 307         QVector<FORMATETC> formatsForMime(QString const & mimeType,
 308                 QMimeData const * mimeData) const
 309         {
 310                 QVector<FORMATETC> formats;
 311                 formats += cfFromMime(mimeType);
 312                 return formats;
 313         }
 314
 315         QString mimeForFormat(FORMATETC const & formatetc) const
 316         {
 317                 switch (formatetc.cfFormat) {
 318                 case CF_ENHMETAFILE:
 319                         return emf_mime_type;
 320                 case CF_METAFILEPICT:
 321                         return wmf_mime_type;
 322                 }
 323                 return QString();
 324         }
 325 };
 326
 327 #endif // Q_WS_WIN
 328
 329 ////////////////////////////////////////////////////////////////////////
 330 // GuiApplication::Private definition and implementation.
 331 ////////////////////////////////////////////////////////////////////////
 332
 333 struct GuiApplication::Private
 334 {
 335         Private(): language_model_(0), global_menubar_(0)
 336         {
 337 #ifdef Q_WS_MACX
 338                 // Create the global default menubar which is shown for the dialogs
 339                 // and if no GuiView is visible.
 340                 global_menubar_ = new GlobalMenuBar();
 341 #endif
 342         }
 343
 344         ///
 345         QSortFilterProxyModel * language_model_;
 346         ///
 347         GuiClipboard clipboard_;
 348         ///
 349         GuiSelection selection_;
 350         ///
 351         FontLoader font_loader_;
 352         ///
 353         ColorCache color_cache_;
 354         ///
 355         QTranslator qt_trans_;
 356         ///
 357         std::map<int, SocketNotifier *> socket_notifiers_;
 358         ///
 359         Menus menus_;
 360         /// this timer is used for any regular events one wants to
 361         /// perform. at present it is used to check if forked processes
 362         /// are done.
 363         QTimer general_timer_;
 364
 365         /// Multiple views container.
 366         /**
 367         * Warning: This must not be a smart pointer as the destruction of the
 368         * object is handled by Qt when the view is closed
 369         * \sa Qt::WA_DeleteOnClose attribute.
 370         */
 371         std::map<int, GuiView *> views_;
 372         ///
 373         std::vector<int> view_ids_;
 374
 375         /// Only used on mac.
 376         GlobalMenuBar * global_menubar_;
 377
 378 #ifdef Q_WS_MACX
 379         /// Linkback mime handler for MacOSX.
 380         QMacPasteboardMimeGraphics mac_pasteboard_mime_;
 381 #endif
 382
 383 #ifdef Q_WS_WIN
 384         /// WMF Mime handler for Windows clipboard.
 385         // FIXME for Windows Vista and Qt4 (see http://bugzilla.lyx.org/show_bug.cgi?id=4846)
 386         // But this makes LyX crash on exit when LyX is compiled in release mode and if there
 387         // is something in the clipboard.
 388         QWindowsMimeMetafile wmf_mime_;
 389 #endif
 390 };
 391
 392
 393 GuiApplication * guiApp;
 394
 395 GuiApplication::~GuiApplication()
 396 {
 397 #ifdef Q_WS_MACX
 398         closeAllLinkBackLinks();
 399 #endif
 400         delete d;
 401 }
 402
 403
 404 GuiApplication::GuiApplication(int & argc, char ** argv)
 405         : QApplication(argc, argv),     current_view_(0), d(new GuiApplication::Private)
 406 {
 407         QString app_name = "LyX";
 408         QCoreApplication::setOrganizationName(app_name);
 409         QCoreApplication::setOrganizationDomain("lyx.org");
 410         QCoreApplication::setApplicationName(app_name + "-" + lyx_version);
 411
 412         // FIXME: quitOnLastWindowClosed is true by default. We should have a
 413         // lyxrc setting for this in order to let the application stay resident.
 414         // But then we need some kind of dock icon, at least on Windows.
 415         /*
 416         if (lyxrc.quit_on_last_window_closed)
 417                 setQuitOnLastWindowClosed(false);
 418         */
 419 #ifdef Q_WS_MACX
 420         // FIXME: Do we need a lyxrc setting for this on Mac? This behaviour
 421         // seems to be the default case for applications like LyX.
 422         setQuitOnLastWindowClosed(false);
 423 #endif
 424
 425 #ifdef Q_WS_X11
 426         // doubleClickInterval() is 400 ms on X11 which is just too long.
 427         // On Windows and Mac OS X, the operating system's value is used.
 428         // On Microsoft Windows, calling this function sets the double
 429         // click interval for all applications. So we don't!
 430         QApplication::setDoubleClickInterval(300);
 431 #endif
 432
 433         // install translation file for Qt built-in dialogs
 434         QString language_name = QString("qt_") + QLocale::system().name();
 435
 436         // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
 437         // Short-named translator can be loaded from a long name, but not the
 438         // opposite. Therefore, long name should be used without truncation.
 439         // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
 440         if (d->qt_trans_.load(language_name,
 441                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 442         {
 443                 installTranslator(&d->qt_trans_);
 444                 // even if the language calls for RtL, don't do that
 445                 setLayoutDirection(Qt::LeftToRight);
 446                 LYXERR(Debug::GUI, "Successfully installed Qt translations for locale "
 447                         << language_name);
 448         } else
 449                 LYXERR(Debug::GUI, "Could not find  Qt translations for locale "
 450                         << language_name);
 451
 452 #ifdef Q_WS_MACX
 453         // This allows to translate the strings that appear in the LyX menu.
 454         /// A translator suitable for the entries in the LyX menu.
 455         /// Only needed with Qt/Mac.
 456         installTranslator(new MenuTranslator(this));
 457 #endif
 458         connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
 459
 460         using namespace lyx::graphics;
 461
 462         Image::newImage = boost::bind(&GuiImage::newImage);
 463         Image::loadableFormats = boost::bind(&GuiImage::loadableFormats);
 464
 465         // needs to be done before reading lyxrc
 466         QWidget w;
 467         lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
 468
 469         guiApp = this;
 470
 471         // Set the cache to 5120 kilobytes which corresponds to screen size of
 472         // 1280 by 1024 pixels with a color depth of 32 bits.
 473         QPixmapCache::setCacheLimit(5120);
 474
 475         // Initialize RC Fonts
 476         if (lyxrc.roman_font_name.empty())
 477                 lyxrc.roman_font_name = fromqstr(romanFontName());
 478
 479         if (lyxrc.sans_font_name.empty())
 480                 lyxrc.sans_font_name = fromqstr(sansFontName());
 481
 482         if (lyxrc.typewriter_font_name.empty())
 483                 lyxrc.typewriter_font_name = fromqstr(typewriterFontName());
 484
 485         d->general_timer_.setInterval(500);
 486         connect(&d->general_timer_, SIGNAL(timeout()),
 487                 this, SLOT(handleRegularEvents()));
 488         d->general_timer_.start();
 489 }
 490
 491
 492 FuncStatus GuiApplication::getStatus(FuncRequest const & cmd)
 493 {
 494         FuncStatus flag;
 495         bool enable = true;
 496
 497         switch(cmd.action) {
 498
 499         case LFUN_WINDOW_CLOSE:
 500                 enable = d->view_ids_.size() > 0;
 501                 break;
 502
 503         default:
 504                 if (!current_view_) {
 505                         enable = false;
 506                         break;
 507                 }
 508         }
 509
 510         if (!enable)
 511                 flag.enabled(false);
 512
 513         return flag;
 514 }
 515
 516
 517 bool GuiApplication::dispatch(FuncRequest const & cmd)
 518 {
 519         switch(cmd.action) {
 520
 521         case LFUN_WINDOW_NEW:
 522                 createView(toqstr(cmd.argument()));
 523                 break;
 524
 525         case LFUN_WINDOW_CLOSE:
 526                 // update bookmark pit of the current buffer before window close
 527                 for (size_t i = 0; i < LyX::ref().session().bookmarks().size(); ++i)
 528                         theLyXFunc().gotoBookmark(i+1, false, false);
 529                 current_view_->close();
 530                 break;
 531
 532         case LFUN_LYX_QUIT:
 533                 // quitting is triggered by the gui code
 534                 // (leaving the event loop).
 535                 if (current_view_)
 536                         current_view_->message(from_utf8(N_("Exiting.")));
 537                 if (closeAllViews())
 538                         quit();
 539                 break;
 540
 541         case LFUN_SCREEN_FONT_UPDATE: {
 542                 // handle the screen font changes.
 543                 d->font_loader_.update();
 544                 // Backup current_view_
 545                 GuiView * view = current_view_;
 546                 // Set current_view_ to zero to forbid GuiWorkArea::redraw()
 547                 // to skip the refresh.
 548                 current_view_ = 0;
 549                 BufferList::iterator it = theBufferList().begin();
 550                 BufferList::iterator const end = theBufferList().end();
 551                 for (; it != end; ++it)
 552                         (*it)->changed();
 553                 // Restore current_view_
 554                 current_view_ = view;
 555                 break;
 556         }
 557
 558         case LFUN_BUFFER_NEW:
 559                 if (viewCount() == 0
 560                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 561                         createView(QString(), false); // keep hidden
 562                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 563                         current_view_->show();
 564                         setActiveWindow(current_view_);
 565                 } else
 566                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 567                 break;
 568
 569         case LFUN_BUFFER_NEW_TEMPLATE:
 570                 if (viewCount() == 0
 571                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 572                         createView();
 573                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 574                         if (!current_view_->buffer())
 575                                 current_view_->close();
 576                 } else
 577                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 578                 break;
 579
 580         case LFUN_FILE_OPEN:
 581                 if (viewCount() == 0
 582                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 583                         createView();
 584                         current_view_->openDocument(to_utf8(cmd.argument()));
 585                         if (!current_view_->buffer())
 586                                 current_view_->close();
 587                 } else
 588                         current_view_->openDocument(to_utf8(cmd.argument()));
 589                 break;
 590
 591         default:
 592                 // Notify the caller that the action has not been dispatched.
 593                 return false;
 594         }
 595
 596         // The action has been dispatched.
 597         return true;
 598 }
 599
 600
 601 void GuiApplication::resetGui()
 602 {
 603         map<int, GuiView *>::iterator it;
 604         for (it = d->views_.begin(); it != d->views_.end(); ++it)
 605                 it->second->resetDialogs();
 606
 607         dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
 608 }
 609
 610
 611 static void updateIds(map<int, GuiView *> const & stdmap, vector<int> & ids)
 612 {
 613         ids.clear();
 614         map<int, GuiView *>::const_iterator it;
 615         for (it = stdmap.begin(); it != stdmap.end(); ++it)
 616                 ids.push_back(it->first);
 617 }
 618
 619
 620 void GuiApplication::createView(QString const & geometry_arg, bool autoShow)
 621 {
 622         // release the keyboard which might have been grabed by the global
 623         // menubar on Mac to catch shortcuts even without any GuiView.
 624         if (d->global_menubar_)
 625                 d->global_menubar_->releaseKeyboard();
 626
 627         // create new view
 628         updateIds(d->views_, d->view_ids_);
 629         int id = 0;
 630         while (d->views_.find(id) != d->views_.end())
 631                 id++;
 632         GuiView * view = new GuiView(id);
 633
 634         // copy the icon size from old view
 635         if (viewCount() > 0)
 636                 view->setIconSize(current_view_->iconSize());
 637
 638         // register view
 639         d->views_[id] = view;
 640         updateIds(d->views_, d->view_ids_);
 641
 642         if (autoShow) {
 643                 view->show();
 644                 setActiveWindow(view);
 645         }
 646
 647         if (!geometry_arg.isEmpty()) {
 648 #ifdef Q_WS_WIN
 649                 int x, y;
 650                 int w, h;
 651                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 652                 re.indexIn(geometry_arg);
 653                 w = re.cap(1).toInt();
 654                 h = re.cap(2).toInt();
 655                 x = re.cap(3).toInt();
 656                 y = re.cap(4).toInt();
 657                 view->setGeometry(x, y, w, h);
 658 #endif
 659         }
 660         view->setFocus();
 661         setCurrentView(view);
 662 }
 663
 664
 665 Clipboard & GuiApplication::clipboard()
 666 {
 667         return d->clipboard_;
 668 }
 669
 670
 671 Selection & GuiApplication::selection()
 672 {
 673         return d->selection_;
 674 }
 675
 676
 677 FontLoader & GuiApplication::fontLoader()
 678 {
 679         return d->font_loader_;
 680 }
 681
 682
 683 Menus const & GuiApplication::menus() const
 684 {
 685         return d->menus_;
 686 }
 687
 688
 689 Menus & GuiApplication::menus()
 690 {
 691         return d->menus_;
 692 }
 693
 694
 695 size_t GuiApplication::viewCount() const
 696 {
 697         return d->view_ids_.size();
 698 }
 699
 700
 701 vector<int> const & GuiApplication::viewIds()
 702 {
 703         return d->view_ids_;
 704 }
 705
 706 ColorCache & GuiApplication::colorCache()
 707 {
 708         return d->color_cache_;
 709 }
 710
 711
 712 int GuiApplication::exec()
 713 {
 714         QTimer::singleShot(1, this, SLOT(execBatchCommands()));
 715         return QApplication::exec();
 716 }
 717
 718
 719 void GuiApplication::exit(int status)
 720 {
 721         QApplication::exit(status);
 722 }
 723
 724
 725 void GuiApplication::execBatchCommands()
 726 {
 727         LyX::ref().execBatchCommands();
 728 }
 729
 730 QAbstractItemModel * GuiApplication::languageModel()
 731 {
 732         if (d->language_model_)
 733                 return d->language_model_;
 734
 735         QStandardItemModel * lang_model = new QStandardItemModel(this);
 736         lang_model->insertColumns(0, 1);
 737         int current_row;
 738         Languages::const_iterator it = languages.begin();
 739         Languages::const_iterator end = languages.end();
 740         for (; it != end; ++it) {
 741                 current_row = lang_model->rowCount();
 742                 lang_model->insertRows(current_row, 1);
 743                 QModelIndex item = lang_model->index(current_row, 0);
 744                 lang_model->setData(item, qt_(it->second.display()), Qt::DisplayRole);
 745                 lang_model->setData(item, toqstr(it->second.lang()), Qt::UserRole);
 746         }
 747         d->language_model_ = new QSortFilterProxyModel(this);
 748         d->language_model_->setSourceModel(lang_model);
 749 #if QT_VERSION >= 0x040300
 750         d->language_model_->setSortLocaleAware(true);
 751 #endif
 752         return d->language_model_;
 753 }
 754
 755
 756 void GuiApplication::restoreGuiSession()
 757 {
 758         if (!lyxrc.load_session)
 759                 return;
 760
 761         Session & session = LyX::ref().session();
 762         vector<FileName> const & lastopened = session.lastOpened().getfiles();
 763         // do not add to the lastfile list since these files are restored from
 764         // last session, and should be already there (regular files), or should
 765         // not be added at all (help files).
 766         for_each(lastopened.begin(), lastopened.end(),
 767                 bind(&GuiView::loadDocument, current_view_, _1, false));
 768
 769         // clear this list to save a few bytes of RAM
 770         session.lastOpened().clear();
 771 }
 772
 773
 774 QString const GuiApplication::romanFontName()
 775 {
 776         QFont font;
 777         font.setKerning(false);
 778         font.setStyleHint(QFont::Serif);
 779         font.setFamily("serif");
 780
 781         return QFontInfo(font).family();
 782 }
 783
 784
 785 QString const GuiApplication::sansFontName()
 786 {
 787         QFont font;
 788         font.setKerning(false);
 789         font.setStyleHint(QFont::SansSerif);
 790         font.setFamily("sans");
 791
 792         return QFontInfo(font).family();
 793 }
 794
 795
 796 QString const GuiApplication::typewriterFontName()
 797 {
 798         QFont font;
 799         font.setKerning(false);
 800         font.setStyleHint(QFont::TypeWriter);
 801         font.setFamily("monospace");
 802
 803         return QFontInfo(font).family();
 804 }
 805
 806
 807 void GuiApplication::handleRegularEvents()
 808 {
 809         ForkedCallsController::handleCompletedProcesses();
 810 }
 811
 812
 813 bool GuiApplication::event(QEvent * e)
 814 {
 815         switch(e->type()) {
 816         case QEvent::FileOpen: {
 817                 // Open a file; this happens only on Mac OS X for now
 818                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
 819
 820                 if (!current_view_ || !current_view_->view())
 821                         // The application is not properly initialized yet.
 822                         // So we acknowledge the event and delay the file opening
 823                         // until LyX is ready.
 824                         // FIXME UNICODE: FileName accept an utf8 encoded string.
 825                         LyX::ref().addFileToLoad(fromqstr(foe->file()));
 826                 else
 827                         lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
 828                                 qstring_to_ucs4(foe->file())));
 829
 830                 e->accept();
 831                 return true;
 832         }
 833         default:
 834                 return QApplication::event(e);
 835         }
 836 }
 837
 838
 839 bool GuiApplication::notify(QObject * receiver, QEvent * event)
 840 {
 841         try {
 842                 return QApplication::notify(receiver, event);
 843         }
 844         catch (ExceptionMessage const & e) {
 845                 switch(e.type_) {
 846                 case ErrorException:
 847                         LyX::cref().emergencyCleanup();
 848                         setQuitOnLastWindowClosed(false);
 849                         closeAllViews();
 850                         Alert::error(e.title_, e.details_);
 851 #ifndef NDEBUG
 852                         // Properly crash in debug mode in order to get a useful backtrace.
 853                         abort();
 854 #endif
 855                         // In release mode, try to exit gracefully.
 856                         this->exit(1);
 857
 858                 case BufferException: {
 859                         Buffer * buf = current_view_->buffer();
 860                         docstring details = e.details_ + '\n';
 861                         details += theBufferList().emergencyWrite(buf);
 862                         theBufferList().release(buf);
 863                         details += "\n" + _("The current document was closed.");
 864                         Alert::error(e.title_, details);
 865                         return false;
 866                 }
 867                 case WarningException:
 868                         Alert::warning(e.title_, e.details_);
 869                         return false;
 870                 }
 871         }
 872         catch (exception const & e) {
 873                 docstring s = _("LyX has caught an exception, it will now "
 874                         "attempt to save all unsaved documents and exit."
 875                         "\n\nException: ");
 876                 s += from_ascii(e.what());
 877                 Alert::error(_("Software exception Detected"), s);
 878                 LyX::cref().exit(1);
 879         }
 880         catch (...) {
 881                 docstring s = _("LyX has caught some really weird exception, it will "
 882                         "now attempt to save all unsaved documents and exit.");
 883                 Alert::error(_("Software exception Detected"), s);
 884                 LyX::cref().exit(1);
 885         }
 886
 887         return false;
 888 }
 889
 890
 891 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
 892 {
 893         QColor const & qcol = d->color_cache_.get(col);
 894         if (!qcol.isValid()) {
 895                 rgbcol.r = 0;
 896                 rgbcol.g = 0;
 897                 rgbcol.b = 0;
 898                 return false;
 899         }
 900         rgbcol.r = qcol.red();
 901         rgbcol.g = qcol.green();
 902         rgbcol.b = qcol.blue();
 903         return true;
 904 }
 905
 906
 907 string const GuiApplication::hexName(ColorCode col)
 908 {
 909         return ltrim(fromqstr(d->color_cache_.get(col).name()), "#");
 910 }
 911
 912
 913 void GuiApplication::updateColor(ColorCode)
 914 {
 915         // FIXME: Bleh, can't we just clear them all at once ?
 916         d->color_cache_.clear();
 917 }
 918
 919
 920 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
 921 {
 922         SocketNotifier * sn = new SocketNotifier(this, fd, func);
 923         d->socket_notifiers_[fd] = sn;
 924         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
 925 }
 926
 927
 928 void GuiApplication::socketDataReceived(int fd)
 929 {
 930         d->socket_notifiers_[fd]->func_();
 931 }
 932
 933
 934 void GuiApplication::unregisterSocketCallback(int fd)
 935 {
 936         d->socket_notifiers_[fd]->setEnabled(false);
 937         d->socket_notifiers_.erase(fd);
 938 }
 939
 940
 941 void GuiApplication::commitData(QSessionManager & sm)
 942 {
 943         /// The implementation is required to avoid an application exit
 944         /// when session state save is triggered by session manager.
 945         /// The default implementation sends a close event to all
 946         /// visible top level widgets when session managment allows
 947         /// interaction.
 948         /// We are changing that to close all wiew one by one.
 949         /// FIXME: verify if the default implementation is enough now.
 950         if (sm.allowsInteraction() && !closeAllViews())
 951                 sm.cancel();
 952 }
 953
 954
 955 bool GuiApplication::unregisterView(int id)
 956 {
 957         updateIds(d->views_, d->view_ids_);
 958         LASSERT(d->views_.find(id) != d->views_.end(), /**/);
 959         LASSERT(d->views_[id], /**/);
 960
 961         map<int, GuiView *>::iterator it;
 962         for (it = d->views_.begin(); it != d->views_.end(); ++it) {
 963                 if (it->first == id) {
 964                         d->views_.erase(id);
 965                         break;
 966                 }
 967         }
 968         updateIds(d->views_, d->view_ids_);
 969         return true;
 970 }
 971
 972
 973 bool GuiApplication::closeAllViews()
 974 {
 975         updateIds(d->views_, d->view_ids_);
 976         if (d->views_.empty())
 977                 return true;
 978
 979         map<int, GuiView*> const cmap = d->views_;
 980         map<int, GuiView*>::const_iterator it;
 981         for (it = cmap.begin(); it != cmap.end(); ++it) {
 982                 if (!it->second->close())
 983                         return false;
 984         }
 985
 986         d->views_.clear();
 987         d->view_ids_.clear();
 988         return true;
 989 }
 990
 991
 992 GuiView & GuiApplication::view(int id) const
 993 {
 994         LASSERT(d->views_.find(id) != d->views_.end(), /**/);
 995         return *d->views_.find(id)->second;
 996 }
 997
 998
 999 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
1000 {
1001         vector<int>::const_iterator it = d->view_ids_.begin();
1002         vector<int>::const_iterator const end = d->view_ids_.end();
1003         for (; it != end; ++it)
1004                 view(*it).hideDialog(name, inset);
1005 }
1006
1007
1008 Buffer const * GuiApplication::updateInset(Inset const * inset) const
1009 {
1010         Buffer const * buffer_ = 0;
1011         vector<int>::const_iterator it = d->view_ids_.begin();
1012         vector<int>::const_iterator const end = d->view_ids_.end();
1013         for (; it != end; ++it) {
1014                 Buffer const * ptr = view(*it).updateInset(inset);
1015                 if (ptr)
1016                         buffer_ = ptr;
1017         }
1018         return buffer_;
1019 }
1020
1021
1022 void GuiApplication::readMenus(Lexer & lex)
1023 {
1024         menus().read(lex);
1025 }
1026
1027
1028 bool GuiApplication::searchMenu(FuncRequest const & func,
1029         vector<docstring> & names) const
1030 {
1031         return menus().searchMenu(func, names);
1032 }
1033
1034
1035 void GuiApplication::initGlobalMenu()
1036 {
1037         if (d->global_menubar_)
1038                 menus().fillMenuBar(d->global_menubar_, 0, true);
1039 }
1040
1041
1042 void GuiApplication::onLastWindowClosed()
1043 {
1044         if (d->global_menubar_)
1045                 d->global_menubar_->grabKeyboard();
1046 }
1047
1048
1049 ////////////////////////////////////////////////////////////////////////
1050 //
1051 // X11 specific stuff goes here...
1052
1053 #ifdef Q_WS_X11
1054 bool GuiApplication::x11EventFilter(XEvent * xev)
1055 {
1056         if (!current_view_)
1057                 return false;
1058
1059         switch (xev->type) {
1060         case SelectionRequest: {
1061                 if (xev->xselectionrequest.selection != XA_PRIMARY)
1062                         break;
1063                 LYXERR(Debug::GUI, "X requested selection.");
1064                 BufferView * bv = current_view_->view();
1065                 if (bv) {
1066                         docstring const sel = bv->requestSelection();
1067                         if (!sel.empty())
1068                                 selection_.put(sel);
1069                 }
1070                 break;
1071         }
1072         case SelectionClear: {
1073                 if (xev->xselectionclear.selection != XA_PRIMARY)
1074                         break;
1075                 LYXERR(Debug::GUI, "Lost selection.");
1076                 BufferView * bv = current_view_->view();
1077                 if (bv)
1078                         bv->clearSelection();
1079                 break;
1080         }
1081         }
1082         return false;
1083 }
1084 #endif
1085
1086 } // namespace frontend
1087
1088
1089 void hideDialogs(std::string const & name, Inset * inset)
1090 {
1091         if (theApp())
1092                 theApp()->hideDialogs(name, inset);
1093 }
1094
1095
1096 ////////////////////////////////////////////////////////////////////
1097 //
1098 // Font stuff
1099 //
1100 ////////////////////////////////////////////////////////////////////
1101
1102 frontend::FontLoader & theFontLoader()
1103 {
1104         LASSERT(frontend::guiApp, /**/);
1105         return frontend::guiApp->fontLoader();
1106 }
1107
1108
1109 frontend::FontMetrics const & theFontMetrics(Font const & f)
1110 {
1111         return theFontMetrics(f.fontInfo());
1112 }
1113
1114
1115 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
1116 {
1117         LASSERT(frontend::guiApp, /**/);
1118         return frontend::guiApp->fontLoader().metrics(f);
1119 }
1120
1121
1122 ////////////////////////////////////////////////////////////////////
1123 //
1124 // Misc stuff
1125 //
1126 ////////////////////////////////////////////////////////////////////
1127
1128 frontend::Clipboard & theClipboard()
1129 {
1130         LASSERT(frontend::guiApp, /**/);
1131         return frontend::guiApp->clipboard();
1132 }
1133
1134
1135 frontend::Selection & theSelection()
1136 {
1137         LASSERT(frontend::guiApp, /**/);
1138         return frontend::guiApp->selection();
1139 }
1140
1141 } // namespace lyx
1142
1143 #include "GuiApplication_moc.cpp"