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 "ColorSet.h"
  19 #include "GuiClipboard.h"
  20 #include "GuiImage.h"
  21 #include "GuiKeySymbol.h"
  22 #include "GuiSelection.h"
  23 #include "GuiView.h"
  24 #include "Menus.h"
  25 #include "qt_helpers.h"
  26 #include "Toolbars.h"
  27
  28 #include "frontends/alert.h"
  29 #include "frontends/Application.h"
  30 #include "frontends/FontLoader.h"
  31 #include "frontends/FontMetrics.h"
  32
  33 #include "Buffer.h"
  34 #include "BufferList.h"
  35 #include "BufferView.h"
  36 #include "CmdDef.h"
  37 #include "Color.h"
  38 #include "Font.h"
  39 #include "FuncRequest.h"
  40 #include "FuncStatus.h"
  41 #include "Intl.h"
  42 #include "KeyMap.h"
  43 #include "Language.h"
  44 #include "LaTeXFeatures.h"
  45 #include "Lexer.h"
  46 #include "LyX.h"
  47 #include "LyXAction.h"
  48 #include "LyXRC.h"
  49 #include "Paragraph.h"
  50 #include "Server.h"
  51 #include "Session.h"
  52 #include "SpellChecker.h"
  53 #include "version.h"
  54
  55 #include "support/convert.h"
  56 #include "support/debug.h"
  57 #include "support/ExceptionMessage.h"
  58 #include "support/FileName.h"
  59 #include "support/filetools.h"
  60 #include "support/foreach.h"
  61 #include "support/ForkedCalls.h"
  62 #include "support/gettext.h"
  63 #include "support/lassert.h"
  64 #include "support/lstrings.h"
  65 #include "support/lyxalgo.h" // sorted
  66 #include "support/Messages.h"
  67 #include "support/os.h"
  68 #include "support/Package.h"
  69 #include "support/Path.h"
  70 #include "support/Systemcall.h"
  71
  72 #ifdef Q_WS_MACX
  73 #include "support/linkback/LinkBackProxy.h"
  74 #endif
  75
  76 #include <queue>
  77
  78 #include <QByteArray>
  79 #include <QClipboard>
  80 #include <QDateTime>
  81 #include <QDir>
  82 #include <QEventLoop>
  83 #include <QFileOpenEvent>
  84 #include <QFileInfo>
  85 #include <QHash>
  86 #include <QIcon>
  87 #include <QImageReader>
  88 #include <QLocale>
  89 #include <QLibraryInfo>
  90 #include <QList>
  91 #include <QMacPasteboardMime>
  92 #include <QMenuBar>
  93 #include <QMimeData>
  94 #include <QObject>
  95 #include <QPixmap>
  96 #include <QPixmapCache>
  97 #include <QRegExp>
  98 #include <QSessionManager>
  99 #include <QSettings>
 100 #include <QSocketNotifier>
 101 #include <QSortFilterProxyModel>
 102 #include <QStandardItemModel>
 103 #include <QTextCodec>
 104 #include <QTimer>
 105 #include <QTranslator>
 106 #include <QWidget>
 107
 108 #ifdef Q_WS_X11
 109 #include <X11/Xatom.h>
 110 #include <X11/Xlib.h>
 111 #undef CursorShape
 112 #undef None
 113 #endif
 114
 115 #ifdef Q_WS_WIN
 116 #include <QWindowsMime>
 117 #ifdef Q_CC_GNU
 118 #include <wtypes.h>
 119 #endif
 120 #include <objidl.h>
 121 #endif // Q_WS_WIN
 122
 123 #include <boost/bind.hpp>
 124 #include <boost/crc.hpp>
 125
 126 #include <exception>
 127 #include <sstream>
 128 #include <vector>
 129
 130 using namespace std;
 131 using namespace lyx::support;
 132
 133
 134 static void initializeResources()
 135 {
 136         static bool initialized = false;
 137         if (!initialized) {
 138                 Q_INIT_RESOURCE(Resources);
 139                 initialized = true;
 140         }
 141 }
 142
 143
 144 namespace lyx {
 145
 146 frontend::Application * createApplication(int & argc, char * argv[])
 147 {
 148 #ifndef Q_WS_X11
 149         // prune -geometry argument(s) by shifting
 150         // the following ones 2 places down.
 151         for (int i = 0 ; i < argc ; ++i) {
 152                 if (strcmp(argv[i], "-geometry") == 0) {
 153                         int const remove = (i+1) < argc ? 2 : 1;
 154                         argc -= remove;
 155                         for (int j = i; j < argc; ++j)
 156                                 argv[j] = argv[j + remove];
 157                         --i;
 158                 }
 159         }
 160 #endif
 161         return new frontend::GuiApplication(argc, argv);
 162 }
 163
 164 namespace frontend {
 165
 166
 167 /// Return the list of loadable formats.
 168 vector<string> loadableImageFormats()
 169 {
 170         vector<string> fmts;
 171
 172         QList<QByteArray> qt_formats = QImageReader::supportedImageFormats();
 173
 174         LYXERR(Debug::GRAPHICS,
 175                 "\nThe image loader can load the following directly:\n");
 176
 177         if (qt_formats.empty())
 178                 LYXERR(Debug::GRAPHICS, "\nQt4 Problem: No Format available!");
 179
 180         for (QList<QByteArray>::const_iterator it = qt_formats.begin(); it != qt_formats.end(); ++it) {
 181
 182                 LYXERR(Debug::GRAPHICS, (const char *) *it << ", ");
 183
 184                 string ext = ascii_lowercase((const char *) *it);
 185                 // special case
 186                 if (ext == "jpeg")
 187                         ext = "jpg";
 188                 fmts.push_back(ext);
 189         }
 190
 191         return fmts;
 192 }
 193
 194
 195 ////////////////////////////////////////////////////////////////////////
 196 //
 197 // Icon loading support code
 198 //
 199 ////////////////////////////////////////////////////////////////////////
 200
 201 namespace {
 202
 203 struct PngMap {
 204         QString key;
 205         QString value;
 206 };
 207
 208
 209 bool operator<(PngMap const & lhs, PngMap const & rhs)
 210 {
 211         return lhs.key < rhs.key;
 212 }
 213
 214
 215 class CompareKey {
 216 public:
 217         CompareKey(QString const & name) : name_(name) {}
 218         bool operator()(PngMap const & other) const { return other.key == name_; }
 219 private:
 220         QString const name_;
 221 };
 222
 223
 224 // this must be sorted alphabetically
 225 // Upper case comes before lower case
 226 PngMap sorted_png_map[] = {
 227         { "Bumpeq", "bumpeq2" },
 228         { "Cap", "cap2" },
 229         { "Cup", "cup2" },
 230         { "Delta", "delta2" },
 231         { "Diamond", "diamond2" },
 232         { "Downarrow", "downarrow2" },
 233         { "Gamma", "gamma2" },
 234         { "Lambda", "lambda2" },
 235         { "Leftarrow", "leftarrow2" },
 236         { "Leftrightarrow", "leftrightarrow2" },
 237         { "Longleftarrow", "longleftarrow2" },
 238         { "Longleftrightarrow", "longleftrightarrow2" },
 239         { "Longrightarrow", "longrightarrow2" },
 240         { "Omega", "omega2" },
 241         { "Phi", "phi2" },
 242         { "Pi", "pi2" },
 243         { "Psi", "psi2" },
 244         { "Rightarrow", "rightarrow2" },
 245         { "Sigma", "sigma2" },
 246         { "Subset", "subset2" },
 247         { "Supset", "supset2" },
 248         { "Theta", "theta2" },
 249         { "Uparrow", "uparrow2" },
 250         { "Updownarrow", "updownarrow2" },
 251         { "Upsilon", "upsilon2" },
 252         { "Vdash", "vdash3" },
 253         { "Vert", "vert2" },
 254         { "Xi", "xi2" },
 255         { "nLeftarrow", "nleftarrow2" },
 256         { "nLeftrightarrow", "nleftrightarrow2" },
 257         { "nRightarrow", "nrightarrow2" },
 258         { "nVDash", "nvdash3" },
 259         { "nvDash", "nvdash2" },
 260         { "textrm \\AA", "textrm_AA"},
 261         { "textrm \\O", "textrm_O"},
 262         { "vDash", "vdash2" }
 263 };
 264
 265 size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
 266
 267
 268 QString findPng(QString const & name)
 269 {
 270         PngMap const * const begin = sorted_png_map;
 271         PngMap const * const end = begin + nr_sorted_png_map;
 272         LASSERT(sorted(begin, end), /**/);
 273
 274         PngMap const * const it = find_if(begin, end, CompareKey(name));
 275
 276         QString png_name;
 277         if (it != end) {
 278                 png_name = it->value;
 279         } else {
 280                 png_name = name;
 281                 png_name.replace('_', "underscore");
 282                 png_name.replace(' ', '_');
 283
 284                 // This way we can have "math-delim { }" on the toolbar.
 285                 png_name.replace('(', "lparen");
 286                 png_name.replace(')', "rparen");
 287                 png_name.replace('[', "lbracket");
 288                 png_name.replace(']', "rbracket");
 289                 png_name.replace('{', "lbrace");
 290                 png_name.replace('}', "rbrace");
 291                 png_name.replace('|', "bars");
 292                 png_name.replace(',', "thinspace");
 293                 png_name.replace(':', "mediumspace");
 294                 png_name.replace(';', "thickspace");
 295                 png_name.replace('!', "negthinspace");
 296         }
 297
 298         LYXERR(Debug::GUI, "findPng(" << name << ")\n"
 299                 << "Looking for math PNG called \"" << png_name << '"');
 300         return png_name;
 301 }
 302
 303 } // namespace anon
 304
 305
 306 QString iconName(FuncRequest const & f, bool unknown)
 307 {
 308         initializeResources();
 309         QString name1;
 310         QString name2;
 311         QString path;
 312         switch (f.action) {
 313         case LFUN_MATH_INSERT:
 314                 if (!f.argument().empty()) {
 315                         path = "math/";
 316                         name1 = findPng(toqstr(f.argument()).mid(1));
 317                 }
 318                 break;
 319         case LFUN_MATH_DELIM:
 320         case LFUN_MATH_BIGDELIM:
 321                 path = "math/";
 322                 name1 = findPng(toqstr(f.argument()));
 323                 break;
 324         case LFUN_CALL:
 325                 path = "commands/";
 326                 name1 = toqstr(f.argument());
 327                 break;
 328         case LFUN_COMMAND_ALTERNATIVES: {
 329                 // use the first of the alternative commands
 330                 docstring firstcom;
 331                 docstring dummy = split(f.argument(), firstcom, ';');
 332                 name1 = toqstr(firstcom);
 333                 name1.replace(' ', '_');
 334                 break;
 335         }
 336         default:
 337                 name2 = toqstr(lyxaction.getActionName(f.action));
 338                 name1 = name2;
 339
 340                 if (!f.argument().empty()) {
 341                         name1 = name2 + ' ' + toqstr(f.argument());
 342                         name1.replace(' ', '_');
 343                         name1.replace('\\', "backslash");
 344                 }
 345         }
 346
 347         FileName fname = libFileSearch("images/" + path, name1, "png");
 348         if (fname.exists())
 349                 return toqstr(fname.absFilename());
 350
 351         fname = libFileSearch("images/" + path, name2, "png");
 352         if (fname.exists())
 353                 return toqstr(fname.absFilename());
 354
 355         path = ":/images/" + path;
 356         QDir res(path);
 357         if (!res.exists()) {
 358                 LYXERR0("Directory " << path << " not found in resource!");
 359                 return QString();
 360         }
 361         name1 += ".png";
 362         if (res.exists(name1))
 363                 return path + name1;
 364
 365         name2 += ".png";
 366         if (res.exists(name2))
 367                 return path + name2;
 368
 369         LYXERR(Debug::GUI, "Cannot find icon with filename "
 370                            << "\"" << name1 << "\""
 371                            << " or filename "
 372                            << "\"" << name2 << "\""
 373                            << " for command \""
 374                            << lyxaction.getActionName(f.action)
 375                            << '(' << to_utf8(f.argument()) << ")\"");
 376
 377         if (unknown) {
 378                 fname = libFileSearch(QString("images/"), "unknown", "png");
 379                 if (fname.exists())
 380                         return toqstr(fname.absFilename());
 381                 return QString(":/images/unknown.png");
 382         }
 383
 384         return QString();
 385 }
 386
 387 QPixmap getPixmap(QString const & path, QString const & name, QString const & ext)
 388 {
 389         QPixmap pixmap;
 390         FileName fname = libFileSearch(path, name, ext);
 391         QString path1 = toqstr(fname.absFilename());
 392         QString path2 = ":/" + path + name + "." + ext;
 393
 394         if (pixmap.load(path1)) {
 395                 return pixmap;
 396         }
 397         else if (pixmap.load(path2)) {
 398                 return pixmap;
 399         }
 400
 401         LYXERR0("Cannot load pixmap \""
 402                 << path << name << '.' << ext
 403                 << "\", please verify resource system!");
 404
 405         return QPixmap();
 406 }
 407
 408 QIcon getIcon(FuncRequest const & f, bool unknown)
 409 {
 410         QString icon = iconName(f, unknown);
 411         if (icon.isEmpty())
 412                 return QIcon();
 413
 414         //LYXERR(Debug::GUI, "Found icon: " << icon);
 415         QPixmap pm;
 416         if (!pm.load(icon)) {
 417                 LYXERR0("Cannot load icon " << icon << " please verify resource system!");
 418                 return QIcon();
 419         }
 420
 421         return QIcon(pm);
 422 }
 423
 424
 425 ////////////////////////////////////////////////////////////////////////
 426 //
 427 // LyX server support code.
 428 //
 429 ////////////////////////////////////////////////////////////////////////
 430
 431 class SocketNotifier : public QSocketNotifier
 432 {
 433 public:
 434         /// connect a connection notification from the LyXServerSocket
 435         SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
 436                 : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
 437         {}
 438
 439 public:
 440         /// The callback function
 441         Application::SocketCallback func_;
 442 };
 443
 444
 445 ////////////////////////////////////////////////////////////////////////
 446 //
 447 // Mac specific stuff goes here...
 448 //
 449 ////////////////////////////////////////////////////////////////////////
 450
 451 class MenuTranslator : public QTranslator
 452 {
 453 public:
 454         MenuTranslator(QObject * parent)
 455                 : QTranslator(parent)
 456         {}
 457
 458         QString translate(const char * /*context*/,
 459           const char * sourceText,
 460           const char * /*comment*/ = 0)
 461         {
 462                 string const s = sourceText;
 463                 if (s == N_("About %1") || s == N_("Preferences")
 464                                 || s == N_("Reconfigure") || s == N_("Quit %1"))
 465                         return qt_(s);
 466                 else
 467                         return QString();
 468         }
 469 };
 470
 471 class GlobalMenuBar : public QMenuBar
 472 {
 473 public:
 474         ///
 475         GlobalMenuBar() : QMenuBar(0) {}
 476
 477         ///
 478         bool event(QEvent * e)
 479         {
 480                 if (e->type() == QEvent::ShortcutOverride) {
 481                         //          && activeWindow() == 0) {
 482                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 483                         KeySymbol sym;
 484                         setKeySymbol(&sym, ke);
 485                         guiApp->processKeySym(sym, q_key_state(ke->modifiers()));
 486                         e->accept();
 487                         return true;
 488                 }
 489                 return false;
 490         }
 491 };
 492
 493 #ifdef Q_WS_MACX
 494 // QMacPasteboardMimeGraphics can only be compiled on Mac.
 495
 496 class QMacPasteboardMimeGraphics : public QMacPasteboardMime
 497 {
 498 public:
 499         QMacPasteboardMimeGraphics()
 500                 : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL)
 501         {}
 502
 503         QString convertorName() { return "Graphics"; }
 504
 505         QString flavorFor(QString const & mime)
 506         {
 507                 LYXERR(Debug::ACTION, "flavorFor " << mime);
 508                 if (mime == pdfMimeType())
 509                         return QLatin1String("com.adobe.pdf");
 510                 return QString();
 511         }
 512
 513         QString mimeFor(QString flav)
 514         {
 515                 LYXERR(Debug::ACTION, "mimeFor " << flav);
 516                 if (flav == QLatin1String("com.adobe.pdf"))
 517                         return pdfMimeType();
 518                 return QString();
 519         }
 520
 521         bool canConvert(QString const & mime, QString flav)
 522         {
 523                 return mimeFor(flav) == mime;
 524         }
 525
 526         QVariant convertToMime(QString const & /*mime*/, QList<QByteArray> data,
 527                 QString /*flav*/)
 528         {
 529                 if(data.count() > 1)
 530                         qWarning("QMacPasteboardMimeGraphics: Cannot handle multiple member data");
 531                 return data.first();
 532         }
 533
 534         QList<QByteArray> convertFromMime(QString const & /*mime*/,
 535                 QVariant data, QString /*flav*/)
 536         {
 537                 QList<QByteArray> ret;
 538                 ret.append(data.toByteArray());
 539                 return ret;
 540         }
 541 };
 542 #endif
 543
 544 ///////////////////////////////////////////////////////////////
 545 //
 546 // You can find more platform specific stuff at the end of this file...
 547 //
 548 ///////////////////////////////////////////////////////////////
 549
 550 ////////////////////////////////////////////////////////////////////////
 551 // Windows specific stuff goes here...
 552
 553 #ifdef Q_WS_WIN
 554 // QWindowsMimeMetafile can only be compiled on Windows.
 555
 556 static FORMATETC cfFromMime(QString const & mimetype)
 557 {
 558         FORMATETC formatetc;
 559         if (mimetype == emfMimeType()) {
 560                 formatetc.cfFormat = CF_ENHMETAFILE;
 561                 formatetc.tymed = TYMED_ENHMF;
 562         } else if (mimetype == wmfMimeType()) {
 563                 formatetc.cfFormat = CF_METAFILEPICT;
 564                 formatetc.tymed = TYMED_MFPICT;
 565         }
 566         formatetc.ptd = 0;
 567         formatetc.dwAspect = DVASPECT_CONTENT;
 568         formatetc.lindex = -1;
 569         return formatetc;
 570 }
 571
 572
 573 class QWindowsMimeMetafile : public QWindowsMime {
 574 public:
 575         QWindowsMimeMetafile() {}
 576
 577         bool canConvertFromMime(FORMATETC const & formatetc,
 578                 QMimeData const * mimedata) const
 579         {
 580                 return false;
 581         }
 582
 583         bool canConvertToMime(QString const & mimetype,
 584                 IDataObject * pDataObj) const
 585         {
 586                 if (mimetype != emfMimeType() && mimetype != wmfMimeType())
 587                         return false;
 588                 FORMATETC formatetc = cfFromMime(mimetype);
 589                 return pDataObj->QueryGetData(&formatetc) == S_OK;
 590         }
 591
 592         bool convertFromMime(FORMATETC const & formatetc,
 593                 const QMimeData * mimedata, STGMEDIUM * pmedium) const
 594         {
 595                 return false;
 596         }
 597
 598         QVariant convertToMime(QString const & mimetype, IDataObject * pDataObj,
 599                 QVariant::Type preferredType) const
 600         {
 601                 QByteArray data;
 602                 if (!canConvertToMime(mimetype, pDataObj))
 603                         return data;
 604
 605                 FORMATETC formatetc = cfFromMime(mimetype);
 606                 STGMEDIUM s;
 607                 if (pDataObj->GetData(&formatetc, &s) != S_OK)
 608                         return data;
 609
 610                 int dataSize;
 611                 if (s.tymed == TYMED_ENHMF) {
 612                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0);
 613                         data.resize(dataSize);
 614                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize,
 615                                 (LPBYTE)data.data());
 616                 } else if (s.tymed == TYMED_MFPICT) {
 617                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0);
 618                         data.resize(dataSize);
 619                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize,
 620                                 (LPBYTE)data.data());
 621                 }
 622                 data.detach();
 623                 ReleaseStgMedium(&s);
 624
 625                 return data;
 626         }
 627
 628
 629         QVector<FORMATETC> formatsForMime(QString const & mimetype,
 630                 QMimeData const * mimedata) const
 631         {
 632                 QVector<FORMATETC> formats;
 633                 if (mimetype == emfMimeType() || mimetype == wmfMimeType())
 634                         formats += cfFromMime(mimetype);
 635                 return formats;
 636         }
 637
 638         QString mimeForFormat(FORMATETC const & formatetc) const
 639         {
 640                 switch (formatetc.cfFormat) {
 641                 case CF_ENHMETAFILE:
 642                         return emfMimeType();
 643                 case CF_METAFILEPICT:
 644                         return wmfMimeType();
 645                 }
 646                 return QString();
 647         }
 648 };
 649
 650 #endif // Q_WS_WIN
 651
 652 ////////////////////////////////////////////////////////////////////////
 653 // GuiApplication::Private definition and implementation.
 654 ////////////////////////////////////////////////////////////////////////
 655
 656 struct GuiApplication::Private
 657 {
 658         Private(): language_model_(0), meta_fake_bit(NoModifier),
 659                 global_menubar_(0)
 660         {
 661         #ifdef Q_WS_WIN
 662                 /// WMF Mime handler for Windows clipboard.
 663                 wmf_mime_ = new QWindowsMimeMetafile();
 664         #endif
 665                 initKeySequences(&theTopLevelKeymap());
 666         }
 667
 668         void initKeySequences(KeyMap * kb)
 669         {
 670                 keyseq = KeySequence(kb, kb);
 671                 cancel_meta_seq = KeySequence(kb, kb);
 672         }
 673
 674         ///
 675         QSortFilterProxyModel * language_model_;
 676         ///
 677         GuiClipboard clipboard_;
 678         ///
 679         GuiSelection selection_;
 680         ///
 681         FontLoader font_loader_;
 682         ///
 683         ColorCache color_cache_;
 684         ///
 685         QTranslator qt_trans_;
 686         ///
 687         QHash<int, SocketNotifier *> socket_notifiers_;
 688         ///
 689         Menus menus_;
 690         ///
 691         /// The global instance
 692         Toolbars toolbars_;
 693
 694         /// this timer is used for any regular events one wants to
 695         /// perform. at present it is used to check if forked processes
 696         /// are done.
 697         QTimer general_timer_;
 698
 699         /// delayed FuncRequests
 700         std::queue<FuncRequest> func_request_queue_;
 701
 702         ///
 703         KeySequence keyseq;
 704         ///
 705         KeySequence cancel_meta_seq;
 706         ///
 707         KeyModifier meta_fake_bit;
 708
 709         /// Multiple views container.
 710         /**
 711         * Warning: This must not be a smart pointer as the destruction of the
 712         * object is handled by Qt when the view is closed
 713         * \sa Qt::WA_DeleteOnClose attribute.
 714         */
 715         QHash<int, GuiView *> views_;
 716
 717         /// Only used on mac.
 718         GlobalMenuBar * global_menubar_;
 719
 720 #ifdef Q_WS_MACX
 721         /// Linkback mime handler for MacOSX.
 722         QMacPasteboardMimeGraphics mac_pasteboard_mime_;
 723 #endif
 724
 725 #ifdef Q_WS_WIN
 726         /// WMF Mime handler for Windows clipboard.
 727         QWindowsMimeMetafile * wmf_mime_;
 728 #endif
 729 };
 730
 731
 732 GuiApplication * guiApp;
 733
 734 GuiApplication::~GuiApplication()
 735 {
 736 #ifdef Q_WS_MACX
 737         closeAllLinkBackLinks();
 738 #endif
 739         delete d;
 740 }
 741
 742
 743 GuiApplication::GuiApplication(int & argc, char ** argv)
 744         : QApplication(argc, argv), current_view_(0),
 745           d(new GuiApplication::Private)
 746 {
 747         QString app_name = "LyX";
 748         QCoreApplication::setOrganizationName(app_name);
 749         QCoreApplication::setOrganizationDomain("lyx.org");
 750         QCoreApplication::setApplicationName(lyx_package);
 751
 752         // Install translator for GUI elements.
 753         installTranslator(&d->qt_trans_);
 754
 755         // FIXME: quitOnLastWindowClosed is true by default. We should have a
 756         // lyxrc setting for this in order to let the application stay resident.
 757         // But then we need some kind of dock icon, at least on Windows.
 758         /*
 759         if (lyxrc.quit_on_last_window_closed)
 760                 setQuitOnLastWindowClosed(false);
 761         */
 762 #ifdef Q_WS_MACX
 763         // FIXME: Do we need a lyxrc setting for this on Mac? This behaviour
 764         // seems to be the default case for applications like LyX.
 765         setQuitOnLastWindowClosed(false);
 766
 767         // This allows to translate the strings that appear in the LyX menu.
 768         /// A translator suitable for the entries in the LyX menu.
 769         /// Only needed with Qt/Mac.
 770         installTranslator(new MenuTranslator(this));
 771 #endif
 772
 773 #ifdef Q_WS_X11
 774         // doubleClickInterval() is 400 ms on X11 which is just too long.
 775         // On Windows and Mac OS X, the operating system's value is used.
 776         // On Microsoft Windows, calling this function sets the double
 777         // click interval for all applications. So we don't!
 778         QApplication::setDoubleClickInterval(300);
 779 #endif
 780
 781         connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
 782
 783         // needs to be done before reading lyxrc
 784         QWidget w;
 785         lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
 786
 787         guiApp = this;
 788
 789         // Set the cache to 5120 kilobytes which corresponds to screen size of
 790         // 1280 by 1024 pixels with a color depth of 32 bits.
 791         QPixmapCache::setCacheLimit(5120);
 792
 793         // Initialize RC Fonts
 794         if (lyxrc.roman_font_name.empty())
 795                 lyxrc.roman_font_name = fromqstr(romanFontName());
 796
 797         if (lyxrc.sans_font_name.empty())
 798                 lyxrc.sans_font_name = fromqstr(sansFontName());
 799
 800         if (lyxrc.typewriter_font_name.empty())
 801                 lyxrc.typewriter_font_name = fromqstr(typewriterFontName());
 802
 803         d->general_timer_.setInterval(500);
 804         connect(&d->general_timer_, SIGNAL(timeout()),
 805                 this, SLOT(handleRegularEvents()));
 806         d->general_timer_.start();
 807 }
 808
 809
 810 GuiApplication * theGuiApp()
 811 {
 812         return dynamic_cast<GuiApplication *>(theApp());
 813 }
 814
 815
 816 void GuiApplication::clearSession()
 817 {
 818         QSettings settings;
 819         settings.clear();
 820 }
 821
 822
 823 docstring GuiApplication::iconName(FuncRequest const & f, bool unknown)
 824 {
 825         return qstring_to_ucs4(lyx::frontend::iconName(f, unknown));
 826 }
 827
 828
 829 FuncStatus GuiApplication::getStatus(FuncRequest const & cmd) const
 830 {
 831         FuncStatus flag;
 832
 833         if (cmd.action == LFUN_NOACTION) {
 834                 flag.message(from_utf8(N_("Nothing to do")));
 835                 flag.setEnabled(false);
 836                 return flag;
 837         }
 838
 839         if (cmd.action == LFUN_UNKNOWN_ACTION) {
 840                 flag.unknown(true);
 841                 flag.setEnabled(false);
 842                 flag.message(from_utf8(N_("Unknown action")));
 843                 return flag;
 844         }
 845
 846         // I would really like to avoid having this switch and rather try to
 847         // encode this in the function itself.
 848         // -- And I'd rather let an inset decide which LFUNs it is willing
 849         // to handle (Andre')
 850         bool enable = true;
 851         switch (cmd.action) {
 852
 853         // This could be used for the no-GUI version. The GUI version is handled in
 854         // GuiView::getStatus(). See above.
 855         /*
 856         case LFUN_BUFFER_WRITE:
 857         case LFUN_BUFFER_WRITE_AS: {
 858                 Buffer * b = theBufferList().getBuffer(FileName(cmd.getArg(0)));
 859                 enable = b && (b->isUnnamed() || !b->isClean());
 860                 break;
 861         }
 862         */
 863
 864         case LFUN_BOOKMARK_GOTO: {
 865                 const unsigned int num = convert<unsigned int>(to_utf8(cmd.argument()));
 866                 enable = theSession().bookmarks().isValid(num);
 867                 break;
 868         }
 869
 870         case LFUN_BOOKMARK_CLEAR:
 871                 enable = theSession().bookmarks().hasValid();
 872                 break;
 873
 874         // this one is difficult to get right. As a half-baked
 875         // solution, we consider only the first action of the sequence
 876         case LFUN_COMMAND_SEQUENCE: {
 877                 // argument contains ';'-terminated commands
 878                 string const firstcmd = token(to_utf8(cmd.argument()), ';', 0);
 879                 FuncRequest func(lyxaction.lookupFunc(firstcmd));
 880                 func.origin = cmd.origin;
 881                 flag = getStatus(func);
 882                 break;
 883         }
 884
 885         // we want to check if at least one of these is enabled
 886         case LFUN_COMMAND_ALTERNATIVES: {
 887                 // argument contains ';'-terminated commands
 888                 string arg = to_utf8(cmd.argument());
 889                 while (!arg.empty()) {
 890                         string first;
 891                         arg = split(arg, first, ';');
 892                         FuncRequest func(lyxaction.lookupFunc(first));
 893                         func.origin = cmd.origin;
 894                         flag = getStatus(func);
 895                         // if this one is enabled, the whole thing is
 896                         if (flag.enabled())
 897                                 break;
 898                 }
 899                 break;
 900         }
 901
 902         case LFUN_CALL: {
 903                 FuncRequest func;
 904                 string name = to_utf8(cmd.argument());
 905                 if (theTopLevelCmdDef().lock(name, func)) {
 906                         func.origin = cmd.origin;
 907                         flag = getStatus(func);
 908                         theTopLevelCmdDef().release(name);
 909                 } else {
 910                         // catch recursion or unknown command
 911                         // definition. all operations until the
 912                         // recursion or unknown command definition
 913                         // occurs are performed, so set the state to
 914                         // enabled
 915                         enable = true;
 916                 }
 917                 break;
 918         }
 919
 920         case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
 921         case LFUN_REPEAT:
 922         case LFUN_PREFERENCES_SAVE:
 923         case LFUN_BUFFER_SAVE_AS_DEFAULT:
 924         case LFUN_DEBUG_LEVEL_SET:
 925                 // these are handled in our dispatch()
 926                 break;
 927
 928         case LFUN_WINDOW_CLOSE:
 929                 enable = d->views_.size() > 0;
 930                 break;
 931
 932         case LFUN_BUFFER_NEW:
 933         case LFUN_BUFFER_NEW_TEMPLATE:
 934         case LFUN_FILE_OPEN:
 935         case LFUN_HELP_OPEN:
 936         case LFUN_SCREEN_FONT_UPDATE:
 937         case LFUN_SET_COLOR:
 938         case LFUN_WINDOW_NEW:
 939         case LFUN_LYX_QUIT:
 940         case LFUN_LYXRC_APPLY:
 941         case LFUN_COMMAND_PREFIX:
 942         case LFUN_CANCEL:
 943         case LFUN_META_PREFIX:
 944         case LFUN_RECONFIGURE:
 945         case LFUN_SERVER_GET_FILENAME:
 946         case LFUN_SERVER_NOTIFY:
 947                 enable = true;
 948                 break;
 949
 950         default:
 951                 // Does the view know something?
 952                 if (!current_view_) {
 953                         enable = false;
 954                         break;
 955                 }
 956
 957                 if (current_view_->getStatus(cmd, flag))
 958                         break;
 959
 960                 // In LyX/Mac, when a dialog is open, the menus of the
 961                 // application can still be accessed without giving focus to
 962                 // the main window. In this case, we want to disable the menu
 963                 // entries that are buffer or view-related.
 964                 //FIXME: Abdel (09/02/10) This has very bad effect on Linux, don't know why...
 965                 /*
 966                 if (cmd.origin == FuncRequest::MENU && !current_view_->hasFocus()) {
 967                         enable = false;
 968                         break;
 969                 }
 970                 */
 971
 972                 BufferView * bv = current_view_->currentBufferView();
 973                 BufferView * doc_bv = current_view_->documentBufferView();
 974                 // If we do not have a BufferView, then other functions are disabled
 975                 if (!bv) {
 976                         enable = false;
 977                         break;
 978                 }
 979                 // try the BufferView
 980                 bool decided = bv->getStatus(cmd, flag);
 981                 if (!decided)
 982                         // try the Buffer
 983                         decided = bv->buffer().getStatus(cmd, flag);
 984                 if (!decided && doc_bv)
 985                         // try the Document Buffer
 986                         decided = doc_bv->buffer().getStatus(cmd, flag);
 987         }
 988
 989         if (!enable)
 990                 flag.setEnabled(false);
 991
 992         // the default error message if we disable the command
 993         if (!flag.enabled() && flag.message().empty())
 994                 flag.message(from_utf8(N_("Command disabled")));
 995
 996         return flag;
 997 }
 998
 999 /// make a post-dispatch status message
1000 static docstring makeDispatchMessage(docstring const & msg,
1001                                      FuncRequest const & cmd)
1002 {
1003         const bool verbose = (cmd.origin == FuncRequest::MENU
1004                               || cmd.origin == FuncRequest::TOOLBAR
1005                               || cmd.origin == FuncRequest::COMMANDBUFFER);
1006
1007         if (cmd.action == LFUN_SELF_INSERT || !verbose) {
1008                 LYXERR(Debug::ACTION, "dispatch msg is " << msg);
1009                 return msg;
1010         }
1011
1012         docstring dispatch_msg = msg;
1013         if (!dispatch_msg.empty())
1014                 dispatch_msg += ' ';
1015
1016         docstring comname = from_utf8(lyxaction.getActionName(cmd.action));
1017
1018         bool argsadded = false;
1019
1020         if (!cmd.argument().empty()) {
1021                 if (cmd.action != LFUN_UNKNOWN_ACTION) {
1022                         comname += ' ' + cmd.argument();
1023                         argsadded = true;
1024                 }
1025         }
1026         docstring const shortcuts = theTopLevelKeymap().
1027                 printBindings(cmd, KeySequence::ForGui);
1028
1029         if (!shortcuts.empty())
1030                 comname += ": " + shortcuts;
1031         else if (!argsadded && !cmd.argument().empty())
1032                 comname += ' ' + cmd.argument();
1033
1034         if (!comname.empty()) {
1035                 comname = rtrim(comname);
1036                 dispatch_msg += '(' + rtrim(comname) + ')';
1037         }
1038         LYXERR(Debug::ACTION, "verbose dispatch msg " << to_utf8(dispatch_msg));
1039         return dispatch_msg;
1040 }
1041
1042
1043 void GuiApplication::dispatch(FuncRequest const & cmd)
1044 {
1045         if (current_view_ && current_view_->currentBufferView())
1046                 current_view_->currentBufferView()->cursor().saveBeforeDispatchPosXY();
1047
1048         DispatchResult dr;
1049         // redraw the screen at the end (first of the two drawing steps).
1050         //This is done unless explicitly requested otherwise
1051         dr.update(Update::FitCursor);
1052         dispatch(cmd, dr);
1053
1054         if (!current_view_)
1055                 return;
1056
1057         BufferView * bv = current_view_->currentBufferView();
1058         if (bv) {
1059                 // BufferView::update() updates the ViewMetricsInfo and
1060                 // also initializes the position cache for all insets in
1061                 // (at least partially) visible top-level paragraphs.
1062                 // We will redraw the screen only if needed.
1063                 bv->processUpdateFlags(dr.update());
1064
1065                 // Do we have a selection?
1066                 theSelection().haveSelection(bv->cursor().selection());
1067
1068                 // update gui
1069                 current_view_->restartCursor();
1070         }
1071         // Some messages may already be translated, so we cannot use _()
1072         current_view_->message(makeDispatchMessage(
1073                         translateIfPossible(dr.message()), cmd));
1074 }
1075
1076
1077 void GuiApplication::gotoBookmark(unsigned int idx, bool openFile, bool switchToBuffer)
1078 {
1079         GuiView * lv = current_view_;
1080         LASSERT(lv, /**/);
1081         if (!theSession().bookmarks().isValid(idx))
1082                 return;
1083         BookmarksSection::Bookmark const & bm = theSession().bookmarks().bookmark(idx);
1084         LASSERT(!bm.filename.empty(), /**/);
1085         string const file = bm.filename.absFilename();
1086         // if the file is not opened, open it.
1087         if (!theBufferList().exists(bm.filename)) {
1088                 if (openFile)
1089                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
1090                 else
1091                         return;
1092         }
1093         // open may fail, so we need to test it again
1094         if (!theBufferList().exists(bm.filename))
1095                 return;
1096
1097         // bm can be changed when saving
1098         BookmarksSection::Bookmark tmp = bm;
1099
1100         // Special case idx == 0 used for back-from-back jump navigation
1101         if (idx == 0)
1102                 dispatch(FuncRequest(LFUN_BOOKMARK_SAVE, "0"));
1103
1104         // if the current buffer is not that one, switch to it.
1105         if (!lv->documentBufferView()
1106                 || lv->documentBufferView()->buffer().fileName() != tmp.filename) {
1107                 if (!switchToBuffer)
1108                         return;
1109                 dispatch(FuncRequest(LFUN_BUFFER_SWITCH, file));
1110         }
1111
1112         // moveToPosition try paragraph id first and then paragraph (pit, pos).
1113         if (!lv->documentBufferView()->moveToPosition(
1114                 tmp.bottom_pit, tmp.bottom_pos, tmp.top_id, tmp.top_pos))
1115                 return;
1116
1117         // bm changed
1118         if (idx == 0)
1119                 return;
1120
1121         // Cursor jump succeeded!
1122         Cursor const & cur = lv->documentBufferView()->cursor();
1123         pit_type new_pit = cur.pit();
1124         pos_type new_pos = cur.pos();
1125         int new_id = cur.paragraph().id();
1126
1127         // if bottom_pit, bottom_pos or top_id has been changed, update bookmark
1128         // see http://www.lyx.org/trac/ticket/3092
1129         if (bm.bottom_pit != new_pit || bm.bottom_pos != new_pos
1130                 || bm.top_id != new_id) {
1131                 const_cast<BookmarksSection::Bookmark &>(bm).updatePos(
1132                         new_pit, new_pos, new_id);
1133         }
1134 }
1135
1136 // This function runs "configure" and then rereads lyx.defaults to
1137 // reconfigure the automatic settings.
1138 static void reconfigure(GuiView * lv, string const & option)
1139 {
1140         // emit message signal.
1141         if (lv)
1142                 lv->message(_("Running configure..."));
1143
1144         // Run configure in user lyx directory
1145         PathChanger p(package().user_support());
1146         string configure_command = package().configure_command();
1147         configure_command += option;
1148         Systemcall one;
1149         int ret = one.startscript(Systemcall::Wait, configure_command);
1150         p.pop();
1151         // emit message signal.
1152         if (lv)
1153                 lv->message(_("Reloading configuration..."));
1154         lyxrc.read(libFileSearch(QString(), "lyxrc.defaults"));
1155         // Re-read packages.lst
1156         LaTeXFeatures::getAvailable();
1157
1158         if (ret)
1159                 Alert::information(_("System reconfiguration failed"),
1160                            _("The system reconfiguration has failed.\n"
1161                                   "Default textclass is used but LyX may "
1162                                   "not be able to work properly.\n"
1163                                   "Please reconfigure again if needed."));
1164         else
1165
1166                 Alert::information(_("System reconfigured"),
1167                            _("The system has been reconfigured.\n"
1168                              "You need to restart LyX to make use of any\n"
1169                              "updated document class specifications."));
1170 }
1171
1172
1173
1174 void GuiApplication::dispatch(FuncRequest const & cmd, DispatchResult & dr)
1175 {
1176         string const argument = to_utf8(cmd.argument());
1177         FuncCode const action = cmd.action;
1178
1179         LYXERR(Debug::ACTION, "cmd: " << cmd);
1180
1181         // we have not done anything wrong yet.
1182         dr.setError(false);
1183
1184         FuncStatus const flag = getStatus(cmd);
1185         if (!flag.enabled()) {
1186                 // We cannot use this function here
1187                 LYXERR(Debug::ACTION, "action "
1188                        << lyxaction.getActionName(action)
1189                        << " [" << action << "] is disabled at this location");
1190                 if (current_view_)
1191                         current_view_->restartCursor();
1192                 dr.setMessage(flag.message());
1193                 dr.setError(true);
1194                 dr.dispatched(false);
1195                 dr.update(Update::None);
1196                 return;
1197         };
1198
1199         // Assumes that the action will be dispatched.
1200         dr.dispatched(true);
1201
1202         switch (cmd.action) {
1203
1204         case LFUN_WINDOW_NEW:
1205                 createView(toqstr(cmd.argument()));
1206                 break;
1207
1208         case LFUN_WINDOW_CLOSE:
1209                 // update bookmark pit of the current buffer before window close
1210                 for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
1211                         gotoBookmark(i+1, false, false);
1212                 // clear the last opened list, because
1213                 // maybe this will end the session
1214                 theSession().lastOpened().clear();
1215                 current_view_->close();
1216                 break;
1217
1218         case LFUN_LYX_QUIT:
1219                 // quitting is triggered by the gui code
1220                 // (leaving the event loop).
1221                 if (current_view_)
1222                         current_view_->message(from_utf8(N_("Exiting.")));
1223                 if (closeAllViews())
1224                         quit();
1225                 break;
1226
1227         case LFUN_SCREEN_FONT_UPDATE: {
1228                 // handle the screen font changes.
1229                 d->font_loader_.update();
1230                 // Backup current_view_
1231                 GuiView * view = current_view_;
1232                 // Set current_view_ to zero to forbid GuiWorkArea::redraw()
1233                 // to skip the refresh.
1234                 current_view_ = 0;
1235                 theBufferList().changed(false);
1236                 // Restore current_view_
1237                 current_view_ = view;
1238                 break;
1239         }
1240
1241         case LFUN_BUFFER_NEW:
1242                 if (d->views_.empty()
1243                    || (!lyxrc.open_buffers_in_tabs && current_view_->documentBufferView() != 0)) {
1244                         createView(QString(), false); // keep hidden
1245                         current_view_->newDocument(to_utf8(cmd.argument()), false);
1246                         current_view_->show();
1247                         setActiveWindow(current_view_);
1248                 } else {
1249                         current_view_->newDocument(to_utf8(cmd.argument()), false);
1250                 }
1251                 break;
1252
1253         case LFUN_BUFFER_NEW_TEMPLATE:
1254                 if (d->views_.empty()
1255                    || (!lyxrc.open_buffers_in_tabs && current_view_->documentBufferView() != 0)) {
1256                         createView();
1257                         current_view_->newDocument(to_utf8(cmd.argument()), true);
1258                         if (!current_view_->documentBufferView())
1259                                 current_view_->close();
1260                 } else {
1261                         current_view_->newDocument(to_utf8(cmd.argument()), true);
1262                 }
1263                 break;
1264
1265         case LFUN_FILE_OPEN:
1266                 // FIXME: create a new method shared with LFUN_HELP_OPEN.
1267                 if (d->views_.empty()
1268                         || (!lyxrc.open_buffers_in_tabs && current_view_->documentBufferView() != 0)) {
1269                         string const fname = to_utf8(cmd.argument());
1270                         // We want the ui session to be saved per document and not per
1271                         // window number. The filename crc is a good enough identifier.
1272                         boost::crc_32_type crc;
1273                         crc = for_each(fname.begin(), fname.end(), crc);
1274                         createView(crc.checksum());
1275                         current_view_->openDocument(fname);
1276                         if (current_view_ && !current_view_->documentBufferView())
1277                                 current_view_->close();
1278                 } else
1279                         current_view_->openDocument(to_utf8(cmd.argument()));
1280                 break;
1281
1282         case LFUN_HELP_OPEN: {
1283                 // FIXME: create a new method shared with LFUN_FILE_OPEN.
1284                 if (current_view_ == 0)
1285                         createView();
1286                 string const arg = to_utf8(cmd.argument());
1287                 if (arg.empty()) {
1288                         current_view_->message(_("Missing argument"));
1289                         break;
1290                 }
1291                 FileName fname = i18nLibFileSearch("doc", arg, "lyx");
1292                 if (fname.empty())
1293                         fname = i18nLibFileSearch("examples", arg, "lyx");
1294
1295                 if (fname.empty()) {
1296                         lyxerr << "LyX: unable to find documentation file `"
1297                                << arg << "'. Bad installation?" << endl;
1298                         break;
1299                 }
1300                 current_view_->message(bformat(_("Opening help file %1$s..."),
1301                                                makeDisplayPath(fname.absFilename())));
1302                 Buffer * buf = current_view_->loadDocument(fname, false);
1303                 if (buf) {
1304                         current_view_->setBuffer(buf);
1305 #ifndef DEVEL_VERSION
1306                         buf->setReadonly(true);
1307 #endif
1308                         buf->updateLabels();
1309                         buf->errors("Parse");
1310                 }
1311                 break;
1312         }
1313
1314         case LFUN_SET_COLOR: {
1315                 string lyx_name;
1316                 string const x11_name = split(to_utf8(cmd.argument()), lyx_name, ' ');
1317                 if (lyx_name.empty() || x11_name.empty()) {
1318                         current_view_->message(
1319                                         _("Syntax: set-color <lyx_name> <x11_name>"));
1320                         break;
1321                 }
1322
1323                 string const graphicsbg = lcolor.getLyXName(Color_graphicsbg);
1324                 bool const graphicsbg_changed =
1325                                 lyx_name == graphicsbg && x11_name != graphicsbg;
1326                 if (graphicsbg_changed) {
1327                         // FIXME: The graphics cache no longer has a changeDisplay method.
1328 #if 0
1329                         graphics::GCache::get().changeDisplay(true);
1330 #endif
1331                 }
1332
1333                 if (!lcolor.setColor(lyx_name, x11_name)) {
1334                         current_view_->message(
1335                                 bformat(_("Set-color \"%1$s\" failed "
1336                                         "- color is undefined or "
1337                                         "may not be redefined"),
1338                                         from_utf8(lyx_name)));
1339                         break;
1340                 }
1341                 // Make sure we don't keep old colors in cache.
1342                 d->color_cache_.clear();
1343                 break;
1344         }
1345
1346         case LFUN_LYXRC_APPLY: {
1347                 // reset active key sequences, since the bindings
1348                 // are updated (bug 6064)
1349                 d->keyseq.reset();
1350                 LyXRC const lyxrc_orig = lyxrc;
1351
1352                 istringstream ss(to_utf8(cmd.argument()));
1353                 bool const success = lyxrc.read(ss) == 0;
1354
1355                 if (!success) {
1356                         lyxerr << "Warning in LFUN_LYXRC_APPLY!\n"
1357                                         << "Unable to read lyxrc data"
1358                                         << endl;
1359                         break;
1360                 }
1361
1362                 actOnUpdatedPrefs(lyxrc_orig, lyxrc);
1363                 setSpellChecker();
1364                 resetGui();
1365
1366                 break;
1367         }
1368
1369         case LFUN_COMMAND_PREFIX:
1370                 dispatch(FuncRequest(LFUN_MESSAGE, d->keyseq.printOptions(true)));
1371                 break;
1372
1373         case LFUN_CANCEL: {
1374                 d->keyseq.reset();
1375                 d->meta_fake_bit = NoModifier;
1376                 GuiView * gv = currentView();
1377                 if (gv && gv->currentBufferView())
1378                         // cancel any selection
1379                         lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1380                 dr.setMessage(from_ascii(N_("Cancel")));
1381                 break;
1382         }
1383         case LFUN_META_PREFIX:
1384                 d->meta_fake_bit = AltModifier;
1385                 dr.setMessage(d->keyseq.print(KeySequence::ForGui));
1386                 break;
1387
1388         // --- Menus -----------------------------------------------
1389         case LFUN_RECONFIGURE:
1390                 // argument is any additional parameter to the configure.py command
1391                 reconfigure(currentView(), to_utf8(cmd.argument()));
1392                 break;
1393
1394         // --- lyxserver commands ----------------------------
1395         case LFUN_SERVER_GET_FILENAME: {
1396                 GuiView * lv = currentView();
1397                 LASSERT(lv && lv->documentBufferView(), return);
1398                 docstring const fname = from_utf8(
1399                                 lv->documentBufferView()->buffer().absFileName());
1400                 dr.setMessage(fname);
1401                 LYXERR(Debug::INFO, "FNAME[" << fname << ']');
1402                 break;
1403         }
1404         case LFUN_SERVER_NOTIFY: {
1405                 docstring const dispatch_buffer = d->keyseq.print(KeySequence::Portable);
1406                 dr.setMessage(dispatch_buffer);
1407                 theServer().notifyClient(to_utf8(dispatch_buffer));
1408                 break;
1409         }
1410
1411         case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
1412                 lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
1413                 break;
1414
1415         case LFUN_REPEAT: {
1416                 // repeat command
1417                 string countstr;
1418                 string rest = split(argument, countstr, ' ');
1419                 istringstream is(countstr);
1420                 int count = 0;
1421                 is >> count;
1422                 //lyxerr << "repeat: count: " << count << " cmd: " << rest << endl;
1423                 for (int i = 0; i < count; ++i)
1424                         dispatch(lyxaction.lookupFunc(rest));
1425                 break;
1426         }
1427
1428         case LFUN_COMMAND_SEQUENCE: {
1429                 // argument contains ';'-terminated commands
1430                 string arg = argument;
1431                 // FIXME: this LFUN should also work without any view.
1432                 Buffer * buffer = (current_view_ && current_view_->documentBufferView())
1433                                   ? &(current_view_->documentBufferView()->buffer()) : 0;
1434                 if (buffer)
1435                         buffer->undo().beginUndoGroup();
1436                 while (!arg.empty()) {
1437                         string first;
1438                         arg = split(arg, first, ';');
1439                         FuncRequest func(lyxaction.lookupFunc(first));
1440                         func.origin = cmd.origin;
1441                         dispatch(func);
1442                 }
1443                 // the buffer may have been closed by one action
1444                 if (theBufferList().isLoaded(buffer))
1445                         buffer->undo().endUndoGroup();
1446                 break;
1447         }
1448
1449         case LFUN_COMMAND_ALTERNATIVES: {
1450                 // argument contains ';'-terminated commands
1451                 string arg = argument;
1452                 while (!arg.empty()) {
1453                         string first;
1454                         arg = split(arg, first, ';');
1455                         FuncRequest func(lyxaction.lookupFunc(first));
1456                         func.origin = cmd.origin;
1457                         FuncStatus stat = getStatus(func);
1458                         if (stat.enabled()) {
1459                                 dispatch(func);
1460                                 break;
1461                         }
1462                 }
1463                 break;
1464         }
1465
1466         case LFUN_CALL: {
1467                 FuncRequest func;
1468                 if (theTopLevelCmdDef().lock(argument, func)) {
1469                         func.origin = cmd.origin;
1470                         dispatch(func);
1471                         theTopLevelCmdDef().release(argument);
1472                 } else {
1473                         if (func.action == LFUN_UNKNOWN_ACTION) {
1474                                 // unknown command definition
1475                                 lyxerr << "Warning: unknown command definition `"
1476                                                 << argument << "'"
1477                                                 << endl;
1478                         } else {
1479                                 // recursion detected
1480                                 lyxerr << "Warning: Recursion in the command definition `"
1481                                                 << argument << "' detected"
1482                                                 << endl;
1483                         }
1484                 }
1485                 break;
1486         }
1487
1488         case LFUN_PREFERENCES_SAVE:
1489                 lyxrc.write(support::makeAbsPath("preferences",
1490                         package().user_support().absFilename()), false);
1491                 break;
1492
1493         case LFUN_BUFFER_SAVE_AS_DEFAULT: {
1494                 string const fname = addName(addPath(package().user_support().absFilename(),
1495                         "templates/"), "defaults.lyx");
1496                 Buffer defaults(fname);
1497
1498                 istringstream ss(argument);
1499                 Lexer lex;
1500                 lex.setStream(ss);
1501                 int const unknown_tokens = defaults.readHeader(lex);
1502
1503                 if (unknown_tokens != 0) {
1504                         lyxerr << "Warning in LFUN_BUFFER_SAVE_AS_DEFAULT!\n"
1505                                << unknown_tokens << " unknown token"
1506                                << (unknown_tokens == 1 ? "" : "s")
1507                                << endl;
1508                 }
1509
1510                 if (defaults.writeFile(FileName(defaults.absFileName())))
1511                         dr.setMessage(bformat(_("Document defaults saved in %1$s"),
1512                                               makeDisplayPath(fname)));
1513                 else {
1514                         dr.setError(true);
1515                         dr.setMessage(from_ascii(N_("Unable to save document defaults")));
1516                 }
1517                 break;
1518         }
1519
1520         case LFUN_BOOKMARK_GOTO:
1521                 // go to bookmark, open unopened file and switch to buffer if necessary
1522                 gotoBookmark(convert<unsigned int>(to_utf8(cmd.argument())), true, true);
1523                 dr.update(Update::FitCursor);
1524                 break;
1525
1526         case LFUN_BOOKMARK_CLEAR:
1527                 theSession().bookmarks().clear();
1528                 break;
1529
1530         case LFUN_DEBUG_LEVEL_SET:
1531                 lyxerr.setLevel(Debug::value(to_utf8(cmd.argument())));
1532                 break;
1533
1534         default:
1535                 // Notify the caller that the action has not been dispatched.
1536                 dr.dispatched(false);
1537                 break;
1538         }
1539
1540         // The action has been dispatched in this method, nothing more to do.
1541         if (dr.dispatched())
1542                 return;
1543
1544         GuiView * lv = current_view_;
1545
1546         // Everything below is only for active window
1547         if (lv == 0)
1548                 return;
1549
1550         // Let the current GuiView dispatch its own actions.
1551         lv->dispatch(cmd, dr);
1552         if (dr.dispatched() && lv )
1553                 return;
1554
1555         BufferView * bv = lv->currentBufferView();
1556         LASSERT(bv, /**/);
1557
1558         // Let the current BufferView dispatch its own actions.
1559         bv->dispatch(cmd, dr);
1560         if (dr.dispatched())
1561                 return;
1562
1563         BufferView * doc_bv = lv->documentBufferView();
1564         // Try with the document BufferView dispatch if any.
1565         if (doc_bv) {
1566                 doc_bv->dispatch(cmd, dr);
1567                 if (dr.dispatched())
1568                         return;
1569         }
1570
1571         // OK, so try the current Buffer itself...
1572         bv->buffer().dispatch(cmd, dr);
1573         if (dr.dispatched())
1574                 return;
1575
1576         // and with the document Buffer.
1577         if (doc_bv) {
1578                 doc_bv->buffer().dispatch(cmd, dr);
1579                 if (dr.dispatched())
1580                         return;
1581         }
1582
1583         // Let the current Cursor dispatch its own actions.
1584         Cursor old = bv->cursor();
1585         bv->cursor().dispatch(cmd);
1586
1587         // notify insets we just left
1588         if (bv->cursor() != old) {
1589                 old.fixIfBroken();
1590                 bool badcursor = notifyCursorLeavesOrEnters(old, bv->cursor());
1591                 if (badcursor)
1592                         bv->cursor().fixIfBroken();
1593         }
1594
1595         // update completion. We do it here and not in
1596         // processKeySym to avoid another redraw just for a
1597         // changed inline completion
1598         if (cmd.origin == FuncRequest::KEYBOARD) {
1599                 if (cmd.action == LFUN_SELF_INSERT
1600                     || (cmd.action == LFUN_ERT_INSERT && bv->cursor().inMathed()))
1601                         lv->updateCompletion(bv->cursor(), true, true);
1602                 else if (cmd.action == LFUN_CHAR_DELETE_BACKWARD)
1603                         lv->updateCompletion(bv->cursor(), false, true);
1604                 else
1605                         lv->updateCompletion(bv->cursor(), false, false);
1606         }
1607
1608         dr = bv->cursor().result();
1609
1610         // if we executed a mutating lfun, mark the buffer as dirty
1611         Buffer * doc_buffer = (lv && lv->documentBufferView())
1612                       ? &(lv->documentBufferView()->buffer()) : 0;
1613         if (doc_buffer && theBufferList().isLoaded(doc_buffer)
1614                 && flag.enabled()
1615                 && !lyxaction.funcHasFlag(action, LyXAction::NoBuffer)
1616                 && !lyxaction.funcHasFlag(action, LyXAction::ReadOnly))
1617                 lv->currentBufferView()->buffer().markDirty();
1618 }
1619
1620
1621 docstring GuiApplication::viewStatusMessage()
1622 {
1623         // When meta-fake key is pressed, show the key sequence so far + "M-".
1624         if (d->meta_fake_bit != NoModifier)
1625                 return d->keyseq.print(KeySequence::ForGui) + "M-";
1626
1627         // Else, when a non-complete key sequence is pressed,
1628         // show the available options.
1629         if (d->keyseq.length() > 0 && !d->keyseq.deleted())
1630                 return d->keyseq.printOptions(true);
1631
1632         return docstring();
1633 }
1634
1635
1636 void GuiApplication::handleKeyFunc(FuncCode action)
1637 {
1638         char_type c = 0;
1639
1640         if (d->keyseq.length())
1641                 c = 0;
1642         GuiView * gv = currentView();
1643         LASSERT(gv && gv->currentBufferView(), return);
1644         BufferView * bv = gv->currentBufferView();
1645         bv->getIntl().getTransManager().deadkey(
1646                 c, get_accent(action).accent, bv->cursor().innerText(),
1647                 bv->cursor());
1648         // Need to clear, in case the minibuffer calls these
1649         // actions
1650         d->keyseq.clear();
1651         // copied verbatim from do_accent_char
1652         bv->cursor().resetAnchor();
1653         bv->processUpdateFlags(Update::FitCursor);
1654 }
1655
1656
1657 void GuiApplication::processKeySym(KeySymbol const & keysym, KeyModifier state)
1658 {
1659         LYXERR(Debug::KEY, "KeySym is " << keysym.getSymbolName());
1660
1661         GuiView * lv = currentView();
1662
1663         // Do nothing if we have nothing (JMarc)
1664         if (!keysym.isOK()) {
1665                 LYXERR(Debug::KEY, "Empty kbd action (probably composing)");
1666                 lv->restartCursor();
1667                 return;
1668         }
1669
1670         if (keysym.isModifier()) {
1671                 LYXERR(Debug::KEY, "isModifier true");
1672                 if (lv)
1673                         lv->restartCursor();
1674                 return;
1675         }
1676
1677         char_type encoded_last_key = keysym.getUCSEncoded();
1678
1679         // Do a one-deep top-level lookup for
1680         // cancel and meta-fake keys. RVDK_PATCH_5
1681         d->cancel_meta_seq.reset();
1682
1683         FuncRequest func = d->cancel_meta_seq.addkey(keysym, state);
1684         LYXERR(Debug::KEY, "action first set to [" << func.action << ']');
1685
1686         // When not cancel or meta-fake, do the normal lookup.
1687         // Note how the meta_fake Mod1 bit is OR-ed in and reset afterwards.
1688         // Mostly, meta_fake_bit = NoModifier. RVDK_PATCH_5.
1689         if ((func.action != LFUN_CANCEL) && (func.action != LFUN_META_PREFIX)) {
1690                 // remove Caps Lock and Mod2 as a modifiers
1691                 func = d->keyseq.addkey(keysym, (state | d->meta_fake_bit));
1692                 LYXERR(Debug::KEY, "action now set to [" << func.action << ']');
1693         }
1694
1695         // Dont remove this unless you know what you are doing.
1696         d->meta_fake_bit = NoModifier;
1697
1698         // Can this happen now ?
1699         if (func.action == LFUN_NOACTION)
1700                 func = FuncRequest(LFUN_COMMAND_PREFIX);
1701
1702         LYXERR(Debug::KEY, " Key [action=" << func.action << "]["
1703                 << d->keyseq.print(KeySequence::Portable) << ']');
1704
1705         // already here we know if it any point in going further
1706         // why not return already here if action == -1 and
1707         // num_bytes == 0? (Lgb)
1708
1709         if (d->keyseq.length() > 1)
1710                 lv->message(d->keyseq.print(KeySequence::ForGui));
1711
1712
1713         // Maybe user can only reach the key via holding down shift.
1714         // Let's see. But only if shift is the only modifier
1715         if (func.action == LFUN_UNKNOWN_ACTION && state == ShiftModifier) {
1716                 LYXERR(Debug::KEY, "Trying without shift");
1717                 func = d->keyseq.addkey(keysym, NoModifier);
1718                 LYXERR(Debug::KEY, "Action now " << func.action);
1719         }
1720
1721         if (func.action == LFUN_UNKNOWN_ACTION) {
1722                 // Hmm, we didn't match any of the keysequences. See
1723                 // if it's normal insertable text not already covered
1724                 // by a binding
1725                 if (keysym.isText() && d->keyseq.length() == 1) {
1726                         LYXERR(Debug::KEY, "isText() is true, inserting.");
1727                         func = FuncRequest(LFUN_SELF_INSERT,
1728                                            FuncRequest::KEYBOARD);
1729                 } else {
1730                         LYXERR(Debug::KEY, "Unknown, !isText() - giving up");
1731                         lv->message(_("Unknown function."));
1732                         lv->restartCursor();
1733                         return;
1734                 }
1735         }
1736
1737         if (func.action == LFUN_SELF_INSERT) {
1738                 if (encoded_last_key != 0) {
1739                         docstring const arg(1, encoded_last_key);
1740                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, arg,
1741                                              FuncRequest::KEYBOARD));
1742                         LYXERR(Debug::KEY, "SelfInsert arg[`" << to_utf8(arg) << "']");
1743                 }
1744         } else {
1745                 lyx::dispatch(func);
1746                 if (!lv)
1747                         return;
1748         }
1749 }
1750
1751
1752 void GuiApplication::dispatchDelayed(FuncRequest const & func)
1753 {
1754         d->func_request_queue_.push(func);
1755         QTimer::singleShot(0, this, SLOT(processFuncRequestQueue()));
1756 }
1757
1758
1759 void GuiApplication::resetGui()
1760 {
1761         // Set the language defined by the user.
1762         setGuiLanguage();
1763
1764         // Read menus
1765         if (!readUIFile(toqstr(lyxrc.ui_file)))
1766                 // Gives some error box here.
1767                 return;
1768
1769         if (d->global_menubar_)
1770                 d->menus_.fillMenuBar(d->global_menubar_, 0, false);
1771
1772         QHash<int, GuiView *>::iterator it;
1773         for (it = d->views_.begin(); it != d->views_.end(); ++it) {
1774                 GuiView * gv = *it;
1775                 setCurrentView(gv);
1776                 gv->setLayoutDirection(layoutDirection());
1777                 gv->resetDialogs();
1778         }
1779
1780         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
1781 }
1782
1783
1784 void GuiApplication::createView(int view_id)
1785 {
1786         createView(QString(), true, view_id);
1787 }
1788
1789
1790 void GuiApplication::createView(QString const & geometry_arg, bool autoShow,
1791         int view_id)
1792 {
1793         // release the keyboard which might have been grabed by the global
1794         // menubar on Mac to catch shortcuts even without any GuiView.
1795         if (d->global_menubar_)
1796                 d->global_menubar_->releaseKeyboard();
1797
1798         // create new view
1799         int id = view_id;
1800         while (d->views_.find(id) != d->views_.end())
1801                 id++;
1802
1803         LYXERR(Debug::GUI, "About to create new window with ID " << id);
1804         GuiView * view = new GuiView(id);
1805         // register view
1806         d->views_[id] = view;
1807
1808         if (autoShow) {
1809                 view->show();
1810                 setActiveWindow(view);
1811         }
1812
1813         if (!geometry_arg.isEmpty()) {
1814 #ifdef Q_WS_WIN
1815                 int x, y;
1816                 int w, h;
1817                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
1818                 re.indexIn(geometry_arg);
1819                 w = re.cap(1).toInt();
1820                 h = re.cap(2).toInt();
1821                 x = re.cap(3).toInt();
1822                 y = re.cap(4).toInt();
1823                 view->setGeometry(x, y, w, h);
1824 #endif
1825         }
1826         view->setFocus();
1827 }
1828
1829
1830 Clipboard & GuiApplication::clipboard()
1831 {
1832         return d->clipboard_;
1833 }
1834
1835
1836 Selection & GuiApplication::selection()
1837 {
1838         return d->selection_;
1839 }
1840
1841
1842 FontLoader & GuiApplication::fontLoader()
1843 {
1844         return d->font_loader_;
1845 }
1846
1847
1848 Toolbars const & GuiApplication::toolbars() const
1849 {
1850         return d->toolbars_;
1851 }
1852
1853
1854 Toolbars & GuiApplication::toolbars()
1855 {
1856         return d->toolbars_;
1857 }
1858
1859
1860 Menus const & GuiApplication::menus() const
1861 {
1862         return d->menus_;
1863 }
1864
1865
1866 Menus & GuiApplication::menus()
1867 {
1868         return d->menus_;
1869 }
1870
1871
1872 QList<int> GuiApplication::viewIds() const
1873 {
1874         return d->views_.keys();
1875 }
1876
1877
1878 ColorCache & GuiApplication::colorCache()
1879 {
1880         return d->color_cache_;
1881 }
1882
1883
1884 int GuiApplication::exec()
1885 {
1886         // asynchronously handle batch commands. This event will be in
1887         // the event queue in front of other asynchronous events. Hence,
1888         // we can assume in the latter that the gui is setup already.
1889         QTimer::singleShot(0, this, SLOT(execBatchCommands()));
1890
1891         return QApplication::exec();
1892 }
1893
1894
1895 void GuiApplication::exit(int status)
1896 {
1897         QApplication::exit(status);
1898 }
1899
1900
1901 void GuiApplication::setGuiLanguage()
1902 {
1903         // Set the language defined by the user.
1904         setRcGuiLanguage();
1905
1906         QString const default_language = toqstr(Messages::defaultLanguage());
1907         LYXERR(Debug::LOCALE, "Trying to set default locale to: " << default_language);
1908         QLocale const default_locale(default_language);
1909         QLocale::setDefault(default_locale);
1910
1911         // install translation file for Qt built-in dialogs
1912         QString const language_name = QString("qt_") + default_locale.name();
1913
1914         // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
1915         // Short-named translator can be loaded from a long name, but not the
1916         // opposite. Therefore, long name should be used without truncation.
1917         // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
1918         if (!d->qt_trans_.load(language_name,
1919                         QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
1920                 LYXERR(Debug::LOCALE, "Could not find Qt translations for locale "
1921                         << language_name);
1922         } else {
1923                 LYXERR(Debug::LOCALE, "Successfully installed Qt translations for locale "
1924                         << language_name);
1925         }
1926
1927         switch (default_locale.language()) {
1928         case QLocale::Arabic :
1929         case QLocale::Hebrew :
1930         case QLocale::Persian :
1931         case QLocale::Urdu :
1932         setLayoutDirection(Qt::RightToLeft);
1933                 break;
1934         default:
1935         setLayoutDirection(Qt::LeftToRight);
1936         }
1937 }
1938
1939
1940 void GuiApplication::processFuncRequestQueue()
1941 {
1942         while (!d->func_request_queue_.empty()) {
1943                 lyx::dispatch(d->func_request_queue_.back());
1944                 d->func_request_queue_.pop();
1945         }
1946 }
1947
1948
1949 void GuiApplication::execBatchCommands()
1950 {
1951         setGuiLanguage();
1952
1953         // Read menus
1954         if (!readUIFile(toqstr(lyxrc.ui_file)))
1955                 // Gives some error box here.
1956                 return;
1957
1958 #ifdef Q_WS_MACX
1959         // Create the global default menubar which is shown for the dialogs
1960         // and if no GuiView is visible.
1961         // This must be done after the session was recovered to know the "last files".
1962         d->global_menubar_ = new GlobalMenuBar();
1963         d->menus_.fillMenuBar(d->global_menubar_, 0, true);
1964 #endif
1965
1966         lyx::execBatchCommands();
1967 }
1968
1969
1970 QAbstractItemModel * GuiApplication::languageModel()
1971 {
1972         if (d->language_model_)
1973                 return d->language_model_;
1974
1975         QStandardItemModel * lang_model = new QStandardItemModel(this);
1976         lang_model->insertColumns(0, 1);
1977         int current_row;
1978         Languages::const_iterator it = lyx::languages.begin();
1979         Languages::const_iterator end = lyx::languages.end();
1980         for (; it != end; ++it) {
1981                 current_row = lang_model->rowCount();
1982                 lang_model->insertRows(current_row, 1);
1983                 QModelIndex item = lang_model->index(current_row, 0);
1984                 lang_model->setData(item, qt_(it->second.display()), Qt::DisplayRole);
1985                 lang_model->setData(item, toqstr(it->second.lang()), Qt::UserRole);
1986         }
1987         d->language_model_ = new QSortFilterProxyModel(this);
1988         d->language_model_->setSourceModel(lang_model);
1989 #if QT_VERSION >= 0x040300
1990         d->language_model_->setSortLocaleAware(true);
1991 #endif
1992         return d->language_model_;
1993 }
1994
1995
1996 void GuiApplication::restoreGuiSession()
1997 {
1998         if (!lyxrc.load_session)
1999                 return;
2000
2001         Session & session = theSession();
2002         LastOpenedSection::LastOpened const & lastopened =
2003                 session.lastOpened().getfiles();
2004
2005         FileName active_file;
2006         // do not add to the lastfile list since these files are restored from
2007         // last session, and should be already there (regular files), or should
2008         // not be added at all (help files).
2009         for (size_t i = 0; i < lastopened.size(); ++i) {
2010                 FileName const & file_name = lastopened[i].file_name;
2011                 if (d->views_.empty() || (!lyxrc.open_buffers_in_tabs
2012                           && current_view_->documentBufferView() != 0)) {
2013                         boost::crc_32_type crc;
2014                         string const & fname = file_name.absFilename();
2015                         crc = for_each(fname.begin(), fname.end(), crc);
2016                         createView(crc.checksum());
2017                 }
2018                 current_view_->loadDocument(file_name, false);
2019
2020                 if (lastopened[i].active)
2021                         active_file = file_name;
2022         }
2023
2024         // Restore last active buffer
2025         Buffer * buffer = theBufferList().getBuffer(active_file);
2026         if (buffer)
2027                 current_view_->setBuffer(buffer);
2028
2029         // clear this list to save a few bytes of RAM
2030         session.lastOpened().clear();
2031 }
2032
2033
2034 QString const GuiApplication::romanFontName()
2035 {
2036         QFont font;
2037         font.setKerning(false);
2038         font.setStyleHint(QFont::Serif);
2039         font.setFamily("serif");
2040
2041         return QFontInfo(font).family();
2042 }
2043
2044
2045 QString const GuiApplication::sansFontName()
2046 {
2047         QFont font;
2048         font.setKerning(false);
2049         font.setStyleHint(QFont::SansSerif);
2050         font.setFamily("sans");
2051
2052         return QFontInfo(font).family();
2053 }
2054
2055
2056 QString const GuiApplication::typewriterFontName()
2057 {
2058         QFont font;
2059         font.setKerning(false);
2060         font.setStyleHint(QFont::TypeWriter);
2061         font.setFamily("monospace");
2062
2063         return QFontInfo(font).family();
2064 }
2065
2066
2067 void GuiApplication::handleRegularEvents()
2068 {
2069         ForkedCallsController::handleCompletedProcesses();
2070 }
2071
2072
2073 bool GuiApplication::event(QEvent * e)
2074 {
2075         switch(e->type()) {
2076         case QEvent::FileOpen: {
2077                 // Open a file; this happens only on Mac OS X for now.
2078                 //
2079                 // We do this asynchronously because on startup the batch
2080                 // commands are not executed here yet and the gui is not ready
2081                 // therefore.
2082                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
2083                 dispatchDelayed(FuncRequest(LFUN_FILE_OPEN, qstring_to_ucs4(foe->file())));
2084                 e->accept();
2085                 return true;
2086         }
2087         default:
2088                 return QApplication::event(e);
2089         }
2090 }
2091
2092
2093 bool GuiApplication::notify(QObject * receiver, QEvent * event)
2094 {
2095         try {
2096                 return QApplication::notify(receiver, event);
2097         }
2098         catch (ExceptionMessage const & e) {
2099                 switch(e.type_) {
2100                 case ErrorException:
2101                         emergencyCleanup();
2102                         setQuitOnLastWindowClosed(false);
2103                         closeAllViews();
2104                         Alert::error(e.title_, e.details_);
2105 #ifndef NDEBUG
2106                         // Properly crash in debug mode in order to get a useful backtrace.
2107                         abort();
2108 #endif
2109                         // In release mode, try to exit gracefully.
2110                         this->exit(1);
2111
2112                 case BufferException: {
2113                         if (!current_view_->documentBufferView())
2114                                 return false;
2115                         Buffer * buf = &current_view_->documentBufferView()->buffer();
2116                         docstring details = e.details_ + '\n';
2117                         details += buf->emergencyWrite();
2118                         theBufferList().release(buf);
2119                         details += "\n" + _("The current document was closed.");
2120                         Alert::error(e.title_, details);
2121                         return false;
2122                 }
2123                 case WarningException:
2124                         Alert::warning(e.title_, e.details_);
2125                         return false;
2126                 }
2127         }
2128         catch (exception const & e) {
2129                 docstring s = _("LyX has caught an exception, it will now "
2130                         "attempt to save all unsaved documents and exit."
2131                         "\n\nException: ");
2132                 s += from_ascii(e.what());
2133                 Alert::error(_("Software exception Detected"), s);
2134                 lyx_exit(1);
2135         }
2136         catch (...) {
2137                 docstring s = _("LyX has caught some really weird exception, it will "
2138                         "now attempt to save all unsaved documents and exit.");
2139                 Alert::error(_("Software exception Detected"), s);
2140                 lyx_exit(1);
2141         }
2142
2143         return false;
2144 }
2145
2146
2147 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
2148 {
2149         QColor const & qcol = d->color_cache_.get(col);
2150         if (!qcol.isValid()) {
2151                 rgbcol.r = 0;
2152                 rgbcol.g = 0;
2153                 rgbcol.b = 0;
2154                 return false;
2155         }
2156         rgbcol.r = qcol.red();
2157         rgbcol.g = qcol.green();
2158         rgbcol.b = qcol.blue();
2159         return true;
2160 }
2161
2162
2163 string const GuiApplication::hexName(ColorCode col)
2164 {
2165         return ltrim(fromqstr(d->color_cache_.get(col).name()), "#");
2166 }
2167
2168
2169 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
2170 {
2171         SocketNotifier * sn = new SocketNotifier(this, fd, func);
2172         d->socket_notifiers_[fd] = sn;
2173         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
2174 }
2175
2176
2177 void GuiApplication::socketDataReceived(int fd)
2178 {
2179         d->socket_notifiers_[fd]->func_();
2180 }
2181
2182
2183 void GuiApplication::unregisterSocketCallback(int fd)
2184 {
2185         d->socket_notifiers_.take(fd)->setEnabled(false);
2186 }
2187
2188
2189 void GuiApplication::commitData(QSessionManager & sm)
2190 {
2191         /// The implementation is required to avoid an application exit
2192         /// when session state save is triggered by session manager.
2193         /// The default implementation sends a close event to all
2194         /// visible top level widgets when session managment allows
2195         /// interaction.
2196         /// We are changing that to close all wiew one by one.
2197         /// FIXME: verify if the default implementation is enough now.
2198         if (sm.allowsInteraction() && !closeAllViews())
2199                 sm.cancel();
2200 }
2201
2202
2203 void GuiApplication::unregisterView(GuiView * gv)
2204 {
2205         LASSERT(d->views_[gv->id()] == gv, /**/);
2206         d->views_.remove(gv->id());
2207         if (current_view_ == gv)
2208                 current_view_ = 0;
2209 }
2210
2211
2212 bool GuiApplication::closeAllViews()
2213 {
2214         if (d->views_.empty())
2215                 return true;
2216
2217         // When a view/window was closed before without quitting LyX, there
2218         // are already entries in the lastOpened list.
2219         theSession().lastOpened().clear();
2220
2221         QList<GuiView *> views = d->views_.values();
2222         foreach (GuiView * view, views) {
2223                 if (!view->close())
2224                         return false;
2225         }
2226
2227         d->views_.clear();
2228         return true;
2229 }
2230
2231
2232 GuiView & GuiApplication::view(int id) const
2233 {
2234         LASSERT(d->views_.contains(id), /**/);
2235         return *d->views_.value(id);
2236 }
2237
2238
2239 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
2240 {
2241         QList<GuiView *> views = d->views_.values();
2242         foreach (GuiView * view, views)
2243                 view->hideDialog(name, inset);
2244 }
2245
2246
2247 Buffer const * GuiApplication::updateInset(Inset const * inset) const
2248 {
2249         Buffer const * buffer_ = 0;
2250         QHash<int, GuiView *>::iterator end = d->views_.end();
2251         for (QHash<int, GuiView *>::iterator it = d->views_.begin(); it != end; ++it) {
2252                 if (Buffer const * ptr = (*it)->updateInset(inset))
2253                         buffer_ = ptr;
2254         }
2255         return buffer_;
2256 }
2257
2258
2259 bool GuiApplication::searchMenu(FuncRequest const & func,
2260         docstring_list & names) const
2261 {
2262         return d->menus_.searchMenu(func, names);
2263 }
2264
2265
2266 bool GuiApplication::readUIFile(QString const & name, bool include)
2267 {
2268         LYXERR(Debug::INIT, "About to read " << name << "...");
2269
2270         FileName ui_path;
2271         if (include) {
2272                 ui_path = libFileSearch("ui", name, "inc");
2273                 if (ui_path.empty())
2274                         ui_path = libFileSearch("ui", changeExtension(name, "inc"));
2275         } else {
2276                 ui_path = libFileSearch("ui", name, "ui");
2277         }
2278
2279         if (ui_path.empty()) {
2280                 static const QString defaultUIFile = "default";
2281                 LYXERR(Debug::INIT, "Could not find " << name);
2282                 if (include) {
2283                         Alert::warning(_("Could not find UI definition file"),
2284                                 bformat(_("Error while reading the included file\n%1$s\n"
2285                                         "Please check your installation."), qstring_to_ucs4(name)));
2286                         return false;
2287                 }
2288                 if (name == defaultUIFile) {
2289                         LYXERR(Debug::INIT, "Could not find default UI file!!");
2290                         Alert::warning(_("Could not find default UI file"),
2291                                 _("LyX could not find the default UI file!\n"
2292                                   "Please check your installation."));
2293                         return false;
2294                 }
2295                 Alert::warning(_("Could not find UI definition file"),
2296                 bformat(_("Error while reading the configuration file\n%1$s\n"
2297                         "Falling back to default.\n"
2298                         "Please look under Tools>Preferences>User Interface and\n"
2299                         "check which User Interface file you are using."), qstring_to_ucs4(name)));
2300                 return readUIFile(defaultUIFile, false);
2301         }
2302
2303         // Ensure that a file is read only once (prevents include loops)
2304         static QStringList uifiles;
2305         QString const uifile = toqstr(ui_path.absFilename());
2306         if (uifiles.contains(uifile)) {
2307                 if (!include) {
2308                         // We are reading again the top uifile so reset the safeguard:
2309                         uifiles.clear();
2310                         d->menus_.reset();
2311                         d->toolbars_.reset();
2312                 } else {
2313                         LYXERR(Debug::INIT, "UI file '" << name << "' has been read already. "
2314                                 << "Is this an include loop?");
2315                         return false;
2316                 }
2317         }
2318         uifiles.push_back(uifile);
2319
2320         LYXERR(Debug::INIT, "Found " << name << " in " << ui_path);
2321
2322         enum {
2323                 ui_menuset = 1,
2324                 ui_toolbars,
2325                 ui_toolbarset,
2326                 ui_include,
2327                 ui_last
2328         };
2329
2330         LexerKeyword uitags[] = {
2331                 { "include", ui_include },
2332                 { "menuset", ui_menuset },
2333                 { "toolbars", ui_toolbars },
2334                 { "toolbarset", ui_toolbarset }
2335         };
2336
2337         Lexer lex(uitags);
2338         lex.setFile(ui_path);
2339         if (!lex.isOK()) {
2340                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
2341                        << endl;
2342         }
2343
2344         if (lyxerr.debugging(Debug::PARSER))
2345                 lex.printTable(lyxerr);
2346
2347         // store which ui files define Toolbars
2348         static QStringList toolbar_uifiles;
2349
2350         while (lex.isOK()) {
2351                 switch (lex.lex()) {
2352                 case ui_include: {
2353                         lex.next(true);
2354                         QString const file = toqstr(lex.getString());
2355                         if (!readUIFile(file, true))
2356                                 return false;
2357                         break;
2358                 }
2359                 case ui_menuset:
2360                         d->menus_.read(lex);
2361                         break;
2362
2363                 case ui_toolbarset:
2364                         d->toolbars_.readToolbars(lex);
2365                         break;
2366
2367                 case ui_toolbars:
2368                         d->toolbars_.readToolbarSettings(lex);
2369                         toolbar_uifiles.push_back(uifile);
2370                         break;
2371
2372                 default:
2373                         if (!rtrim(lex.getString()).empty())
2374                                 lex.printError("LyX::ReadUIFile: "
2375                                                "Unknown menu tag: `$$Token'");
2376                         break;
2377                 }
2378         }
2379
2380         if (include)
2381                 return true;
2382
2383         QSettings settings;
2384         settings.beginGroup("ui_files");
2385         bool touched = false;
2386         for (int i = 0; i != uifiles.size(); ++i) {
2387                 QFileInfo fi(uifiles[i]);
2388                 QDateTime const date_value = fi.lastModified();
2389                 QString const name_key = QString::number(i);
2390                 // if an ui file which defines Toolbars has changed,
2391                 // we have to reset the settings
2392                 if (toolbar_uifiles.contains(uifiles[i])
2393                  && (!settings.contains(name_key)
2394                  || settings.value(name_key).toString() != uifiles[i]
2395                  || settings.value(name_key + "/date").toDateTime() != date_value)) {
2396                         touched = true;
2397                         settings.setValue(name_key, uifiles[i]);
2398                         settings.setValue(name_key + "/date", date_value);
2399                 }
2400         }
2401         settings.endGroup();
2402         if (touched)
2403                 settings.remove("views");
2404
2405         return true;
2406 }
2407
2408
2409 void GuiApplication::onLastWindowClosed()
2410 {
2411         if (d->global_menubar_)
2412                 d->global_menubar_->grabKeyboard();
2413 }
2414
2415
2416 ////////////////////////////////////////////////////////////////////////
2417 //
2418 // X11 specific stuff goes here...
2419
2420 #ifdef Q_WS_X11
2421 bool GuiApplication::x11EventFilter(XEvent * xev)
2422 {
2423         if (!current_view_)
2424                 return false;
2425
2426         switch (xev->type) {
2427         case SelectionRequest: {
2428                 if (xev->xselectionrequest.selection != XA_PRIMARY)
2429                         break;
2430                 LYXERR(Debug::SELECTION, "X requested selection.");
2431                 BufferView * bv = current_view_->currentBufferView();
2432                 if (bv) {
2433                         docstring const sel = bv->requestSelection();
2434                         if (!sel.empty())
2435                                 d->selection_.put(sel);
2436                 }
2437                 break;
2438         }
2439         case SelectionClear: {
2440                 if (xev->xselectionclear.selection != XA_PRIMARY)
2441                         break;
2442                 LYXERR(Debug::SELECTION, "Lost selection.");
2443                 BufferView * bv = current_view_->currentBufferView();
2444                 if (bv)
2445                         bv->clearSelection();
2446                 break;
2447         }
2448         }
2449         return false;
2450 }
2451 #endif
2452
2453 } // namespace frontend
2454
2455
2456 void hideDialogs(std::string const & name, Inset * inset)
2457 {
2458         if (theApp())
2459                 frontend::guiApp->hideDialogs(name, inset);
2460 }
2461
2462
2463 ////////////////////////////////////////////////////////////////////
2464 //
2465 // Font stuff
2466 //
2467 ////////////////////////////////////////////////////////////////////
2468
2469 frontend::FontLoader & theFontLoader()
2470 {
2471         LASSERT(frontend::guiApp, /**/);
2472         return frontend::guiApp->fontLoader();
2473 }
2474
2475
2476 frontend::FontMetrics const & theFontMetrics(Font const & f)
2477 {
2478         return theFontMetrics(f.fontInfo());
2479 }
2480
2481
2482 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
2483 {
2484         LASSERT(frontend::guiApp, /**/);
2485         return frontend::guiApp->fontLoader().metrics(f);
2486 }
2487
2488
2489 ////////////////////////////////////////////////////////////////////
2490 //
2491 // Misc stuff
2492 //
2493 ////////////////////////////////////////////////////////////////////
2494
2495 frontend::Clipboard & theClipboard()
2496 {
2497         LASSERT(frontend::guiApp, /**/);
2498         return frontend::guiApp->clipboard();
2499 }
2500
2501
2502 frontend::Selection & theSelection()
2503 {
2504         LASSERT(frontend::guiApp, /**/);
2505         return frontend::guiApp->selection();
2506 }
2507
2508
2509 } // namespace lyx
2510
2511 #include "moc_GuiApplication.cpp"