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 "Color.h"
  35 #include "Font.h"
  36 #include "FuncRequest.h"
  37 #include "FuncStatus.h"
  38 #include "Language.h"
  39 #include "LyX.h"
  40 #include "LyXFunc.h"
  41 #include "LyXRC.h"
  42 #include "Session.h"
  43 #include "version.h"
  44
  45 #include "support/lassert.h"
  46 #include "support/debug.h"
  47 #include "support/ExceptionMessage.h"
  48 #include "support/FileName.h"
  49 #include "support/ForkedCalls.h"
  50 #include "support/gettext.h"
  51 #include "support/lstrings.h"
  52 #include "support/os.h"
  53 #include "support/Package.h"
  54
  55 #ifdef Q_WS_MACX
  56 #include "support/linkback/LinkBackProxy.h"
  57 #endif
  58
  59 #include <QClipboard>
  60 #include <QEventLoop>
  61 #include <QFileOpenEvent>
  62 #include <QLocale>
  63 #include <QLibraryInfo>
  64 #include <QMacPasteboardMime>
  65 #include <QMenuBar>
  66 #include <QMimeData>
  67 #include <QPixmapCache>
  68 #include <QRegExp>
  69 #include <QSessionManager>
  70 #include <QSocketNotifier>
  71 #include <QSortFilterProxyModel>
  72 #include <QStandardItemModel>
  73 #include <QTextCodec>
  74 #include <QTimer>
  75 #include <QTranslator>
  76 #include <QWidget>
  77
  78 #ifdef Q_WS_X11
  79 #include <X11/Xatom.h>
  80 #include <X11/Xlib.h>
  81 #undef CursorShape
  82 #undef None
  83 #endif
  84
  85 #ifdef Q_WS_WIN
  86 #include <QVector>
  87 #include <QWindowsMime>
  88 #if defined(Q_CYGWIN_WIN) || defined(Q_CC_MINGW)
  89 #include <wtypes.h>
  90 #endif
  91 #include <objidl.h>
  92 #endif // Q_WS_WIN
  93
  94 #include <boost/bind.hpp>
  95
  96 #include <exception>
  97 #include <map>
  98
  99 using namespace std;
 100 using namespace lyx::support;
 101
 102 // FIXME: These strings are also used in GuiClipboard.cpp.
 103 static char const * const lyx_mime_type = "application/x-lyx";
 104 static char const * const pdf_mime_type = "application/pdf";
 105 static char const * const emf_mime_type = "image/x-emf";
 106 static char const * const wmf_mime_type = "image/x-wmf";
 107
 108 namespace lyx {
 109
 110 frontend::Application * createApplication(int & argc, char * argv[])
 111 {
 112         return new frontend::GuiApplication(argc, argv);
 113 }
 114
 115
 116 namespace frontend {
 117
 118 class SocketNotifier : public QSocketNotifier
 119 {
 120 public:
 121         /// connect a connection notification from the LyXServerSocket
 122         SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
 123                 : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
 124         {}
 125
 126 public:
 127         /// The callback function
 128         Application::SocketCallback func_;
 129 };
 130
 131
 132 ////////////////////////////////////////////////////////////////////////
 133 // Mac specific stuff goes here...
 134
 135 class MenuTranslator : public QTranslator
 136 {
 137 public:
 138         MenuTranslator(QObject * parent)
 139                 : QTranslator(parent)
 140         {}
 141
 142         QString translate(const char * /*context*/,
 143           const char * sourceText,
 144           const char * /*comment*/ = 0)
 145         {
 146                 string const s = sourceText;
 147                 if (s == N_("About %1") || s == N_("Preferences")
 148                                 || s == N_("Reconfigure") || s == N_("Quit %1"))
 149                         return qt_(s);
 150                 else
 151                         return QString();
 152         }
 153 };
 154
 155 class GlobalMenuBar : public QMenuBar
 156 {
 157 public:
 158         ///
 159         GlobalMenuBar() : QMenuBar(0) {}
 160
 161         ///
 162         bool event(QEvent * e)
 163         {
 164                 if (e->type() == QEvent::ShortcutOverride) {
 165                         //          && activeWindow() == 0) {
 166                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 167                         KeySymbol sym;
 168                         setKeySymbol(&sym, ke);
 169                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 170                         e->accept();
 171                         return true;
 172                 }
 173                 return false;
 174         }
 175 };
 176
 177 #ifdef Q_WS_MACX
 178 // QMacPasteboardMimeGraphics can only be compiled on Mac.
 179
 180 class QMacPasteboardMimeGraphics : public QMacPasteboardMime
 181 {
 182 public:
 183         QMacPasteboardMimeGraphics()
 184                 : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL)
 185         {}
 186
 187         QString convertorName() { return "Graphics"; }
 188
 189         QString flavorFor(QString const & mime)
 190         {
 191                 LYXERR(Debug::ACTION, "flavorFor " << mime);
 192                 if (mime == QLatin1String(pdf_mime_type))
 193                         return QLatin1String("com.adobe.pdf");
 194                 return QString();
 195         }
 196
 197         QString mimeFor(QString flav)
 198         {
 199                 LYXERR(Debug::ACTION, "mimeFor " << flav);
 200                 if (flav == QLatin1String("com.adobe.pdf"))
 201                         return QLatin1String(pdf_mime_type);
 202                 return QString();
 203         }
 204
 205         bool canConvert(QString const & mime, QString flav)
 206         { return mimeFor(flav) == mime; }
 207
 208         QVariant convertToMime(QString const & mime, QList<QByteArray> data, QString flav)
 209         {
 210                 if(data.count() > 1)
 211                         qWarning("QMacPasteboardMimeGraphics: Cannot handle multiple member data");
 212                 return data.first();
 213         }
 214
 215         QList<QByteArray> convertFromMime(QString const & mime, QVariant data, QString flav)
 216         {
 217                 QList<QByteArray> ret;
 218                 ret.append(data.toByteArray());
 219                 return ret;
 220         }
 221 };
 222 #endif
 223
 224 ///////////////////////////////////////////////////////////////
 225 // You can find more platform specific stuff
 226 // at the end of this file...
 227 ///////////////////////////////////////////////////////////////
 228
 229 ////////////////////////////////////////////////////////////////////////
 230 // Windows specific stuff goes here...
 231
 232 #ifdef Q_WS_WIN
 233 // QWindowsMimeMetafile can only be compiled on Windows.
 234
 235 static FORMATETC cfFromMime(QString const & mimetype)
 236 {
 237         FORMATETC formatetc;
 238         if (mimetype == emf_mime_type) {
 239                 formatetc.cfFormat = CF_ENHMETAFILE;
 240                 formatetc.tymed = TYMED_ENHMF;
 241         } else if (mimetype == wmf_mime_type) {
 242                 formatetc.cfFormat = CF_METAFILEPICT;
 243                 formatetc.tymed = TYMED_MFPICT;
 244         }
 245         formatetc.ptd = 0;
 246         formatetc.dwAspect = DVASPECT_CONTENT;
 247         formatetc.lindex = -1;
 248         return formatetc;
 249 }
 250
 251
 252 class QWindowsMimeMetafile : public QWindowsMime {
 253 public:
 254         QWindowsMimeMetafile() {}
 255
 256         bool canConvertFromMime(FORMATETC const & formatetc,
 257                 QMimeData const * mimedata) const
 258         {
 259                 return false;
 260         }
 261
 262         bool canConvertToMime(QString const & mimetype,
 263                 IDataObject * pDataObj) const
 264         {
 265                 if (mimetype != emf_mime_type && mimetype != wmf_mime_type)
 266                         return false;
 267                 FORMATETC formatetc = cfFromMime(mimetype);
 268                 return pDataObj->QueryGetData(&formatetc) == S_OK;
 269         }
 270
 271         bool convertFromMime(FORMATETC const & formatetc,
 272                 const QMimeData * mimedata, STGMEDIUM * pmedium) const
 273         {
 274                 return false;
 275         }
 276
 277         QVariant convertToMime(QString const & mimetype, IDataObject * pDataObj,
 278                 QVariant::Type preferredType) const
 279         {
 280                 QByteArray data;
 281                 if (!canConvertToMime(mimetype, pDataObj))
 282                         return data;
 283
 284                 FORMATETC formatetc = cfFromMime(mimetype);
 285                 STGMEDIUM s;
 286                 if (pDataObj->GetData(&formatetc, &s) != S_OK)
 287                         return data;
 288
 289                 int dataSize;
 290                 if (s.tymed == TYMED_ENHMF) {
 291                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0);
 292                         data.resize(dataSize);
 293                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize,
 294                                 (LPBYTE)data.data());
 295                 } else if (s.tymed == TYMED_MFPICT) {
 296                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0);
 297                         data.resize(dataSize);
 298                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize,
 299                                 (LPBYTE)data.data());
 300                 }
 301                 data.detach();
 302                 ReleaseStgMedium(&s);
 303
 304                 return data;
 305         }
 306
 307
 308         QVector<FORMATETC> formatsForMime(QString const & mimeType,
 309                 QMimeData const * mimeData) const
 310         {
 311                 QVector<FORMATETC> formats;
 312                 formats += cfFromMime(mimeType);
 313                 return formats;
 314         }
 315
 316         QString mimeForFormat(FORMATETC const & formatetc) const
 317         {
 318                 switch (formatetc.cfFormat) {
 319                 case CF_ENHMETAFILE:
 320                         return emf_mime_type;
 321                 case CF_METAFILEPICT:
 322                         return wmf_mime_type;
 323                 }
 324                 return QString();
 325         }
 326 };
 327
 328 #endif // Q_WS_WIN
 329
 330 ////////////////////////////////////////////////////////////////////////
 331 // GuiApplication::Private definition and implementation.
 332 ////////////////////////////////////////////////////////////////////////
 333
 334 struct GuiApplication::Private
 335 {
 336         Private(): language_model_(0), global_menubar_(0)
 337         {
 338 #ifdef Q_WS_MACX
 339                 // Create the global default menubar which is shown for the dialogs
 340                 // and if no GuiView is visible.
 341                 global_menubar_ = new GlobalMenuBar();
 342 #endif
 343         }
 344
 345         ///
 346         QSortFilterProxyModel * language_model_;
 347         ///
 348         GuiClipboard clipboard_;
 349         ///
 350         GuiSelection selection_;
 351         ///
 352         FontLoader font_loader_;
 353         ///
 354         ColorCache color_cache_;
 355         ///
 356         QTranslator qt_trans_;
 357         ///
 358         std::map<int, SocketNotifier *> socket_notifiers_;
 359         ///
 360         Menus menus_;
 361         /// this timer is used for any regular events one wants to
 362         /// perform. at present it is used to check if forked processes
 363         /// are done.
 364         QTimer general_timer_;
 365
 366         /// Multiple views container.
 367         /**
 368         * Warning: This must not be a smart pointer as the destruction of the
 369         * object is handled by Qt when the view is closed
 370         * \sa Qt::WA_DeleteOnClose attribute.
 371         */
 372         map<int, GuiView *> views_;
 373
 374         /// Only used on mac.
 375         GlobalMenuBar * global_menubar_;
 376
 377 #ifdef Q_WS_MACX
 378         /// Linkback mime handler for MacOSX.
 379         QMacPasteboardMimeGraphics mac_pasteboard_mime_;
 380 #endif
 381
 382 #ifdef Q_WS_WIN
 383         /// WMF Mime handler for Windows clipboard.
 384         // FIXME for Windows Vista and Qt4 (see http://bugzilla.lyx.org/show_bug.cgi?id=4846)
 385         // But this makes LyX crash on exit when LyX is compiled in release mode and if there
 386         // is something in the clipboard.
 387         QWindowsMimeMetafile wmf_mime_;
 388 #endif
 389 };
 390
 391
 392 GuiApplication * guiApp;
 393
 394 GuiApplication::~GuiApplication()
 395 {
 396 #ifdef Q_WS_MACX
 397         closeAllLinkBackLinks();
 398 #endif
 399         delete d;
 400 }
 401
 402
 403 GuiApplication::GuiApplication(int & argc, char ** argv)
 404         : QApplication(argc, argv),     current_view_(0), d(new GuiApplication::Private)
 405 {
 406         QString app_name = "LyX";
 407         QCoreApplication::setOrganizationName(app_name);
 408         QCoreApplication::setOrganizationDomain("lyx.org");
 409         QCoreApplication::setApplicationName(app_name + "-" + lyx_version);
 410
 411         // FIXME: quitOnLastWindowClosed is true by default. We should have a
 412         // lyxrc setting for this in order to let the application stay resident.
 413         // But then we need some kind of dock icon, at least on Windows.
 414         /*
 415         if (lyxrc.quit_on_last_window_closed)
 416                 setQuitOnLastWindowClosed(false);
 417         */
 418 #ifdef Q_WS_MACX
 419         // FIXME: Do we need a lyxrc setting for this on Mac? This behaviour
 420         // seems to be the default case for applications like LyX.
 421         setQuitOnLastWindowClosed(false);
 422 #endif
 423
 424 #ifdef Q_WS_X11
 425         // doubleClickInterval() is 400 ms on X11 which is just too long.
 426         // On Windows and Mac OS X, the operating system's value is used.
 427         // On Microsoft Windows, calling this function sets the double
 428         // click interval for all applications. So we don't!
 429         QApplication::setDoubleClickInterval(300);
 430 #endif
 431
 432         // install translation file for Qt built-in dialogs
 433         QString language_name = QString("qt_") + QLocale::system().name();
 434
 435         // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
 436         // Short-named translator can be loaded from a long name, but not the
 437         // opposite. Therefore, long name should be used without truncation.
 438         // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
 439         if (d->qt_trans_.load(language_name,
 440                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 441         {
 442                 installTranslator(&d->qt_trans_);
 443                 // even if the language calls for RtL, don't do that
 444                 setLayoutDirection(Qt::LeftToRight);
 445                 LYXERR(Debug::GUI, "Successfully installed Qt translations for locale "
 446                         << language_name);
 447         } else
 448                 LYXERR(Debug::GUI, "Could not find  Qt translations for locale "
 449                         << language_name);
 450
 451 #ifdef Q_WS_MACX
 452         // This allows to translate the strings that appear in the LyX menu.
 453         /// A translator suitable for the entries in the LyX menu.
 454         /// Only needed with Qt/Mac.
 455         installTranslator(new MenuTranslator(this));
 456 #endif
 457         connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
 458
 459         using namespace lyx::graphics;
 460
 461         Image::newImage = boost::bind(&GuiImage::newImage);
 462         Image::loadableFormats = boost::bind(&GuiImage::loadableFormats);
 463
 464         // needs to be done before reading lyxrc
 465         QWidget w;
 466         lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
 467
 468         guiApp = this;
 469
 470         // Set the cache to 5120 kilobytes which corresponds to screen size of
 471         // 1280 by 1024 pixels with a color depth of 32 bits.
 472         QPixmapCache::setCacheLimit(5120);
 473
 474         // Initialize RC Fonts
 475         if (lyxrc.roman_font_name.empty())
 476                 lyxrc.roman_font_name = fromqstr(romanFontName());
 477
 478         if (lyxrc.sans_font_name.empty())
 479                 lyxrc.sans_font_name = fromqstr(sansFontName());
 480
 481         if (lyxrc.typewriter_font_name.empty())
 482                 lyxrc.typewriter_font_name = fromqstr(typewriterFontName());
 483
 484         d->general_timer_.setInterval(500);
 485         connect(&d->general_timer_, SIGNAL(timeout()),
 486                 this, SLOT(handleRegularEvents()));
 487         d->general_timer_.start();
 488 }
 489
 490
 491 bool GuiApplication::getStatus(FuncRequest const & cmd, FuncStatus & flag) const
 492 {
 493         bool enable = true;
 494
 495         switch(cmd.action) {
 496
 497         case LFUN_WINDOW_CLOSE:
 498                 enable = d->views_.size() > 0;
 499                 break;
 500
 501         case LFUN_BUFFER_NEW:
 502         case LFUN_BUFFER_NEW_TEMPLATE:
 503         case LFUN_FILE_OPEN:
 504         case LFUN_SCREEN_FONT_UPDATE:
 505         case LFUN_SET_COLOR:
 506         case LFUN_WINDOW_NEW:
 507         case LFUN_LYX_QUIT:
 508                 enable = true;
 509                 break;
 510
 511         default:
 512                 return false;
 513         }
 514
 515         if (!enable)
 516                 flag.enabled(false);
 517
 518         return true;
 519 }
 520
 521
 522 bool GuiApplication::dispatch(FuncRequest const & cmd)
 523 {
 524         switch(cmd.action) {
 525
 526         case LFUN_WINDOW_NEW:
 527                 createView(toqstr(cmd.argument()));
 528                 break;
 529
 530         case LFUN_WINDOW_CLOSE:
 531                 // update bookmark pit of the current buffer before window close
 532                 for (size_t i = 0; i < LyX::ref().session().bookmarks().size(); ++i)
 533                         theLyXFunc().gotoBookmark(i+1, false, false);
 534                 current_view_->close();
 535                 break;
 536
 537         case LFUN_LYX_QUIT:
 538                 // quitting is triggered by the gui code
 539                 // (leaving the event loop).
 540                 if (current_view_)
 541                         current_view_->message(from_utf8(N_("Exiting.")));
 542                 if (closeAllViews())
 543                         quit();
 544                 break;
 545
 546         case LFUN_SCREEN_FONT_UPDATE: {
 547                 // handle the screen font changes.
 548                 d->font_loader_.update();
 549                 // Backup current_view_
 550                 GuiView * view = current_view_;
 551                 // Set current_view_ to zero to forbid GuiWorkArea::redraw()
 552                 // to skip the refresh.
 553                 current_view_ = 0;
 554                 BufferList::iterator it = theBufferList().begin();
 555                 BufferList::iterator const end = theBufferList().end();
 556                 for (; it != end; ++it)
 557                         (*it)->changed();
 558                 // Restore current_view_
 559                 current_view_ = view;
 560                 break;
 561         }
 562
 563         case LFUN_BUFFER_NEW:
 564                 if (viewCount() == 0
 565                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 566                         createView(QString(), false); // keep hidden
 567                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 568                         current_view_->show();
 569                         setActiveWindow(current_view_);
 570                 } else
 571                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 572                 break;
 573
 574         case LFUN_BUFFER_NEW_TEMPLATE:
 575                 if (viewCount() == 0
 576                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 577                         createView();
 578                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 579                         if (!current_view_->buffer())
 580                                 current_view_->close();
 581                 } else
 582                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 583                 break;
 584
 585         case LFUN_FILE_OPEN:
 586                 if (viewCount() == 0
 587                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 588                         createView();
 589                         current_view_->openDocument(to_utf8(cmd.argument()));
 590                         if (!current_view_->buffer())
 591                                 current_view_->close();
 592                 } else
 593                         current_view_->openDocument(to_utf8(cmd.argument()));
 594                 break;
 595
 596         case LFUN_SET_COLOR: {
 597                 string lyx_name;
 598                 string const x11_name = split(to_utf8(cmd.argument()), lyx_name, ' ');
 599                 if (lyx_name.empty() || x11_name.empty()) {
 600                         current_view_->message(
 601                                 _("Syntax: set-color <lyx_name> <x11_name>"));
 602                         break;
 603                 }
 604
 605                 string const graphicsbg = lcolor.getLyXName(Color_graphicsbg);
 606                 bool const graphicsbg_changed = lyx_name == graphicsbg
 607                         && x11_name != graphicsbg;
 608                 if (graphicsbg_changed) {
 609                         // FIXME: The graphics cache no longer has a changeDisplay method.
 610 #if 0
 611                         graphics::GCache::get().changeDisplay(true);
 612 #endif
 613                 }
 614
 615                 if (!lcolor.setColor(lyx_name, x11_name)) {
 616                         current_view_->message(
 617                                         bformat(_("Set-color \"%1$s\" failed "
 618                                                                "- color is undefined or "
 619                                                                "may not be redefined"),
 620                                                                    from_utf8(lyx_name)));
 621                         break;
 622                 }
 623                 // Make sure we don't keep old colors in cache.
 624                 d->color_cache_.clear();
 625                 break;
 626         }
 627
 628         default:
 629                 // Notify the caller that the action has not been dispatched.
 630                 return false;
 631         }
 632
 633         // The action has been dispatched.
 634         return true;
 635 }
 636
 637
 638 void GuiApplication::resetGui()
 639 {
 640         map<int, GuiView *>::iterator it;
 641         for (it = d->views_.begin(); it != d->views_.end(); ++it)
 642                 it->second->resetDialogs();
 643
 644         dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
 645 }
 646
 647
 648 void GuiApplication::createView(QString const & geometry_arg, bool autoShow)
 649 {
 650         // release the keyboard which might have been grabed by the global
 651         // menubar on Mac to catch shortcuts even without any GuiView.
 652         if (d->global_menubar_)
 653                 d->global_menubar_->releaseKeyboard();
 654
 655         // create new view
 656         int id = 0;
 657         while (d->views_.find(id) != d->views_.end())
 658                 id++;
 659         GuiView * view = new GuiView(id);
 660
 661         // copy the icon size from old view
 662         if (viewCount() > 0)
 663                 view->setIconSize(current_view_->iconSize());
 664
 665         // register view
 666         d->views_[id] = view;
 667
 668         if (autoShow) {
 669                 view->show();
 670                 setActiveWindow(view);
 671         }
 672
 673         if (!geometry_arg.isEmpty()) {
 674 #ifdef Q_WS_WIN
 675                 int x, y;
 676                 int w, h;
 677                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 678                 re.indexIn(geometry_arg);
 679                 w = re.cap(1).toInt();
 680                 h = re.cap(2).toInt();
 681                 x = re.cap(3).toInt();
 682                 y = re.cap(4).toInt();
 683                 view->setGeometry(x, y, w, h);
 684 #endif
 685         }
 686         view->setFocus();
 687         setCurrentView(view);
 688 }
 689
 690
 691 Clipboard & GuiApplication::clipboard()
 692 {
 693         return d->clipboard_;
 694 }
 695
 696
 697 Selection & GuiApplication::selection()
 698 {
 699         return d->selection_;
 700 }
 701
 702
 703 FontLoader & GuiApplication::fontLoader()
 704 {
 705         return d->font_loader_;
 706 }
 707
 708
 709 Menus const & GuiApplication::menus() const
 710 {
 711         return d->menus_;
 712 }
 713
 714
 715 Menus & GuiApplication::menus()
 716 {
 717         return d->menus_;
 718 }
 719
 720
 721 size_t GuiApplication::viewCount() const
 722 {
 723         return d->views_.size();
 724 }
 725
 726
 727 QVector<int> GuiApplication::viewIds()
 728 {
 729         QVector<int> ids;
 730         map<int, GuiView *>::const_iterator end = d->views_.end();
 731         map<int, GuiView *>::const_iterator it = d->views_.begin();
 732         for (; it != end; ++it)
 733                 ids.push_back(it->first);
 734         return ids;
 735 }
 736
 737
 738 ColorCache & GuiApplication::colorCache()
 739 {
 740         return d->color_cache_;
 741 }
 742
 743
 744 int GuiApplication::exec()
 745 {
 746         QTimer::singleShot(1, this, SLOT(execBatchCommands()));
 747         return QApplication::exec();
 748 }
 749
 750
 751 void GuiApplication::exit(int status)
 752 {
 753         QApplication::exit(status);
 754 }
 755
 756
 757 void GuiApplication::execBatchCommands()
 758 {
 759         // init the global menubar on Mac. This must be done after the session
 760         // was recovered to know the "last files".
 761         if (d->global_menubar_)
 762                 d->menus_.fillMenuBar(d->global_menubar_, 0, true);
 763
 764         LyX::ref().execBatchCommands();
 765 }
 766
 767 QAbstractItemModel * GuiApplication::languageModel()
 768 {
 769         if (d->language_model_)
 770                 return d->language_model_;
 771
 772         QStandardItemModel * lang_model = new QStandardItemModel(this);
 773         lang_model->insertColumns(0, 1);
 774         int current_row;
 775         Languages::const_iterator it = languages.begin();
 776         Languages::const_iterator end = languages.end();
 777         for (; it != end; ++it) {
 778                 current_row = lang_model->rowCount();
 779                 lang_model->insertRows(current_row, 1);
 780                 QModelIndex item = lang_model->index(current_row, 0);
 781                 lang_model->setData(item, qt_(it->second.display()), Qt::DisplayRole);
 782                 lang_model->setData(item, toqstr(it->second.lang()), Qt::UserRole);
 783         }
 784         d->language_model_ = new QSortFilterProxyModel(this);
 785         d->language_model_->setSourceModel(lang_model);
 786 #if QT_VERSION >= 0x040300
 787         d->language_model_->setSortLocaleAware(true);
 788 #endif
 789         return d->language_model_;
 790 }
 791
 792
 793 void GuiApplication::restoreGuiSession()
 794 {
 795         if (!lyxrc.load_session)
 796                 return;
 797
 798         Session & session = LyX::ref().session();
 799         vector<FileName> const & lastopened = session.lastOpened().getfiles();
 800         // do not add to the lastfile list since these files are restored from
 801         // last session, and should be already there (regular files), or should
 802         // not be added at all (help files).
 803         for_each(lastopened.begin(), lastopened.end(),
 804                 bind(&GuiView::loadDocument, current_view_, _1, false));
 805
 806         // clear this list to save a few bytes of RAM
 807         session.lastOpened().clear();
 808 }
 809
 810
 811 QString const GuiApplication::romanFontName()
 812 {
 813         QFont font;
 814         font.setKerning(false);
 815         font.setStyleHint(QFont::Serif);
 816         font.setFamily("serif");
 817
 818         return QFontInfo(font).family();
 819 }
 820
 821
 822 QString const GuiApplication::sansFontName()
 823 {
 824         QFont font;
 825         font.setKerning(false);
 826         font.setStyleHint(QFont::SansSerif);
 827         font.setFamily("sans");
 828
 829         return QFontInfo(font).family();
 830 }
 831
 832
 833 QString const GuiApplication::typewriterFontName()
 834 {
 835         QFont font;
 836         font.setKerning(false);
 837         font.setStyleHint(QFont::TypeWriter);
 838         font.setFamily("monospace");
 839
 840         return QFontInfo(font).family();
 841 }
 842
 843
 844 void GuiApplication::handleRegularEvents()
 845 {
 846         ForkedCallsController::handleCompletedProcesses();
 847 }
 848
 849
 850 bool GuiApplication::event(QEvent * e)
 851 {
 852         switch(e->type()) {
 853         case QEvent::FileOpen: {
 854                 // Open a file; this happens only on Mac OS X for now
 855                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
 856
 857                 if (!current_view_ || !current_view_->view())
 858                         // The application is not properly initialized yet.
 859                         // So we acknowledge the event and delay the file opening
 860                         // until LyX is ready.
 861                         // FIXME UNICODE: FileName accept an utf8 encoded string.
 862                         LyX::ref().addFileToLoad(fromqstr(foe->file()));
 863                 else
 864                         lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
 865                                 qstring_to_ucs4(foe->file())));
 866
 867                 e->accept();
 868                 return true;
 869         }
 870         default:
 871                 return QApplication::event(e);
 872         }
 873 }
 874
 875
 876 bool GuiApplication::notify(QObject * receiver, QEvent * event)
 877 {
 878         try {
 879                 return QApplication::notify(receiver, event);
 880         }
 881         catch (ExceptionMessage const & e) {
 882                 switch(e.type_) {
 883                 case ErrorException:
 884                         LyX::cref().emergencyCleanup();
 885                         setQuitOnLastWindowClosed(false);
 886                         closeAllViews();
 887                         Alert::error(e.title_, e.details_);
 888 #ifndef NDEBUG
 889                         // Properly crash in debug mode in order to get a useful backtrace.
 890                         abort();
 891 #endif
 892                         // In release mode, try to exit gracefully.
 893                         this->exit(1);
 894
 895                 case BufferException: {
 896                         Buffer * buf = current_view_->buffer();
 897                         docstring details = e.details_ + '\n';
 898                         details += theBufferList().emergencyWrite(buf);
 899                         theBufferList().release(buf);
 900                         details += "\n" + _("The current document was closed.");
 901                         Alert::error(e.title_, details);
 902                         return false;
 903                 }
 904                 case WarningException:
 905                         Alert::warning(e.title_, e.details_);
 906                         return false;
 907                 }
 908         }
 909         catch (exception const & e) {
 910                 docstring s = _("LyX has caught an exception, it will now "
 911                         "attempt to save all unsaved documents and exit."
 912                         "\n\nException: ");
 913                 s += from_ascii(e.what());
 914                 Alert::error(_("Software exception Detected"), s);
 915                 LyX::cref().exit(1);
 916         }
 917         catch (...) {
 918                 docstring s = _("LyX has caught some really weird exception, it will "
 919                         "now attempt to save all unsaved documents and exit.");
 920                 Alert::error(_("Software exception Detected"), s);
 921                 LyX::cref().exit(1);
 922         }
 923
 924         return false;
 925 }
 926
 927
 928 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
 929 {
 930         QColor const & qcol = d->color_cache_.get(col);
 931         if (!qcol.isValid()) {
 932                 rgbcol.r = 0;
 933                 rgbcol.g = 0;
 934                 rgbcol.b = 0;
 935                 return false;
 936         }
 937         rgbcol.r = qcol.red();
 938         rgbcol.g = qcol.green();
 939         rgbcol.b = qcol.blue();
 940         return true;
 941 }
 942
 943
 944 string const GuiApplication::hexName(ColorCode col)
 945 {
 946         return ltrim(fromqstr(d->color_cache_.get(col).name()), "#");
 947 }
 948
 949
 950 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
 951 {
 952         SocketNotifier * sn = new SocketNotifier(this, fd, func);
 953         d->socket_notifiers_[fd] = sn;
 954         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
 955 }
 956
 957
 958 void GuiApplication::socketDataReceived(int fd)
 959 {
 960         d->socket_notifiers_[fd]->func_();
 961 }
 962
 963
 964 void GuiApplication::unregisterSocketCallback(int fd)
 965 {
 966         d->socket_notifiers_[fd]->setEnabled(false);
 967         d->socket_notifiers_.erase(fd);
 968 }
 969
 970
 971 void GuiApplication::commitData(QSessionManager & sm)
 972 {
 973         /// The implementation is required to avoid an application exit
 974         /// when session state save is triggered by session manager.
 975         /// The default implementation sends a close event to all
 976         /// visible top level widgets when session managment allows
 977         /// interaction.
 978         /// We are changing that to close all wiew one by one.
 979         /// FIXME: verify if the default implementation is enough now.
 980         if (sm.allowsInteraction() && !closeAllViews())
 981                 sm.cancel();
 982 }
 983
 984
 985 bool GuiApplication::unregisterView(int id)
 986 {
 987         LASSERT(d->views_.find(id) != d->views_.end(), /**/);
 988         LASSERT(d->views_[id], /**/);
 989
 990         map<int, GuiView *>::iterator it;
 991         for (it = d->views_.begin(); it != d->views_.end(); ++it) {
 992                 if (it->first == id) {
 993                         d->views_.erase(id);
 994                         break;
 995                 }
 996         }
 997
 998         return true;
 999 }
1000
1001
1002 bool GuiApplication::closeAllViews()
1003 {
1004         if (d->views_.empty())
1005                 return true;
1006
1007         map<int, GuiView*> const cmap = d->views_;
1008         map<int, GuiView*>::const_iterator it;
1009         for (it = cmap.begin(); it != cmap.end(); ++it) {
1010                 if (!it->second->close())
1011                         return false;
1012         }
1013
1014         d->views_.clear();
1015         return true;
1016 }
1017
1018
1019 GuiView & GuiApplication::view(int id) const
1020 {
1021         LASSERT(d->views_.find(id) != d->views_.end(), /**/);
1022         return *d->views_.find(id)->second;
1023 }
1024
1025
1026 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
1027 {
1028         map<int, GuiView *>::iterator end = d->views_.end();
1029         for (map<int, GuiView *>::iterator it = d->views_.begin(); it != end; ++it)
1030                 it->second->hideDialog(name, inset);
1031 }
1032
1033
1034 Buffer const * GuiApplication::updateInset(Inset const * inset) const
1035 {
1036         Buffer const * buffer_ = 0;
1037         map<int, GuiView *>::iterator end = d->views_.end();
1038         for (map<int, GuiView *>::iterator it = d->views_.begin(); it != end; ++it) {
1039                 if (Buffer const * ptr = it->second->updateInset(inset))
1040                         buffer_ = ptr;
1041         }
1042         return buffer_;
1043 }
1044
1045
1046 void GuiApplication::readMenus(Lexer & lex)
1047 {
1048         menus().read(lex);
1049 }
1050
1051
1052 bool GuiApplication::searchMenu(FuncRequest const & func,
1053         vector<docstring> & names) const
1054 {
1055         return menus().searchMenu(func, names);
1056 }
1057
1058
1059 void GuiApplication::onLastWindowClosed()
1060 {
1061         if (d->global_menubar_)
1062                 d->global_menubar_->grabKeyboard();
1063 }
1064
1065
1066 ////////////////////////////////////////////////////////////////////////
1067 //
1068 // X11 specific stuff goes here...
1069
1070 #ifdef Q_WS_X11
1071 bool GuiApplication::x11EventFilter(XEvent * xev)
1072 {
1073         if (!current_view_)
1074                 return false;
1075
1076         switch (xev->type) {
1077         case SelectionRequest: {
1078                 if (xev->xselectionrequest.selection != XA_PRIMARY)
1079                         break;
1080                 LYXERR(Debug::GUI, "X requested selection.");
1081                 BufferView * bv = current_view_->view();
1082                 if (bv) {
1083                         docstring const sel = bv->requestSelection();
1084                         if (!sel.empty())
1085                                 d->selection_.put(sel);
1086                 }
1087                 break;
1088         }
1089         case SelectionClear: {
1090                 if (xev->xselectionclear.selection != XA_PRIMARY)
1091                         break;
1092                 LYXERR(Debug::GUI, "Lost selection.");
1093                 BufferView * bv = current_view_->view();
1094                 if (bv)
1095                         bv->clearSelection();
1096                 break;
1097         }
1098         }
1099         return false;
1100 }
1101 #endif
1102
1103 } // namespace frontend
1104
1105
1106 void hideDialogs(std::string const & name, Inset * inset)
1107 {
1108         if (theApp())
1109                 theApp()->hideDialogs(name, inset);
1110 }
1111
1112
1113 ////////////////////////////////////////////////////////////////////
1114 //
1115 // Font stuff
1116 //
1117 ////////////////////////////////////////////////////////////////////
1118
1119 frontend::FontLoader & theFontLoader()
1120 {
1121         LASSERT(frontend::guiApp, /**/);
1122         return frontend::guiApp->fontLoader();
1123 }
1124
1125
1126 frontend::FontMetrics const & theFontMetrics(Font const & f)
1127 {
1128         return theFontMetrics(f.fontInfo());
1129 }
1130
1131
1132 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
1133 {
1134         LASSERT(frontend::guiApp, /**/);
1135         return frontend::guiApp->fontLoader().metrics(f);
1136 }
1137
1138
1139 ////////////////////////////////////////////////////////////////////
1140 //
1141 // Misc stuff
1142 //
1143 ////////////////////////////////////////////////////////////////////
1144
1145 frontend::Clipboard & theClipboard()
1146 {
1147         LASSERT(frontend::guiApp, /**/);
1148         return frontend::guiApp->clipboard();
1149 }
1150
1151
1152 frontend::Selection & theSelection()
1153 {
1154         LASSERT(frontend::guiApp, /**/);
1155         return frontend::guiApp->selection();
1156 }
1157
1158 } // namespace lyx
1159
1160 #include "GuiApplication_moc.cpp"