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$s..."),
1301                                                makeDisplayPath(fname.absFilename())));
1302                 Buffer * buf = current_view_->loadDocument(fname, false);
1303                 if (buf) {
1304                         current_view_->setBuffer(buf);
1305                         buf->setReadonly(true);
1306                         buf->updateLabels();
1307                         buf->errors("Parse");
1308                 }
1309                 break;
1310         }
1311
1312         case LFUN_SET_COLOR: {
1313                 string lyx_name;
1314                 string const x11_name = split(to_utf8(cmd.argument()), lyx_name, ' ');
1315                 if (lyx_name.empty() || x11_name.empty()) {
1316                         current_view_->message(
1317                                         _("Syntax: set-color <lyx_name> <x11_name>"));
1318                         break;
1319                 }
1320
1321                 string const graphicsbg = lcolor.getLyXName(Color_graphicsbg);
1322                 bool const graphicsbg_changed =
1323                                 lyx_name == graphicsbg && x11_name != graphicsbg;
1324                 if (graphicsbg_changed) {
1325                         // FIXME: The graphics cache no longer has a changeDisplay method.
1326 #if 0
1327                         graphics::GCache::get().changeDisplay(true);
1328 #endif
1329                 }
1330
1331                 if (!lcolor.setColor(lyx_name, x11_name)) {
1332                         current_view_->message(
1333                                 bformat(_("Set-color \"%1$s\" failed "
1334                                         "- color is undefined or "
1335                                         "may not be redefined"),
1336                                         from_utf8(lyx_name)));
1337                         break;
1338                 }
1339                 // Make sure we don't keep old colors in cache.
1340                 d->color_cache_.clear();
1341                 break;
1342         }
1343
1344         case LFUN_LYXRC_APPLY: {
1345                 // reset active key sequences, since the bindings
1346                 // are updated (bug 6064)
1347                 d->keyseq.reset();
1348                 LyXRC const lyxrc_orig = lyxrc;
1349
1350                 istringstream ss(to_utf8(cmd.argument()));
1351                 bool const success = lyxrc.read(ss) == 0;
1352
1353                 if (!success) {
1354                         lyxerr << "Warning in LFUN_LYXRC_APPLY!\n"
1355                                         << "Unable to read lyxrc data"
1356                                         << endl;
1357                         break;
1358                 }
1359
1360                 actOnUpdatedPrefs(lyxrc_orig, lyxrc);
1361                 setSpellChecker();
1362                 resetGui();
1363
1364                 break;
1365         }
1366
1367         case LFUN_COMMAND_PREFIX:
1368                 dispatch(FuncRequest(LFUN_MESSAGE, d->keyseq.printOptions(true)));
1369                 break;
1370
1371         case LFUN_CANCEL: {
1372                 d->keyseq.reset();
1373                 d->meta_fake_bit = NoModifier;
1374                 GuiView * gv = currentView();
1375                 if (gv && gv->currentBufferView())
1376                         // cancel any selection
1377                         lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1378                 dr.setMessage(from_ascii(N_("Cancel")));
1379                 break;
1380         }
1381         case LFUN_META_PREFIX:
1382                 d->meta_fake_bit = AltModifier;
1383                 dr.setMessage(d->keyseq.print(KeySequence::ForGui));
1384                 break;
1385
1386         // --- Menus -----------------------------------------------
1387         case LFUN_RECONFIGURE:
1388                 // argument is any additional parameter to the configure.py command
1389                 reconfigure(currentView(), to_utf8(cmd.argument()));
1390                 break;
1391
1392         // --- lyxserver commands ----------------------------
1393         case LFUN_SERVER_GET_FILENAME: {
1394                 GuiView * lv = currentView();
1395                 LASSERT(lv && lv->documentBufferView(), return);
1396                 docstring const fname = from_utf8(
1397                                 lv->documentBufferView()->buffer().absFileName());
1398                 dr.setMessage(fname);
1399                 LYXERR(Debug::INFO, "FNAME[" << fname << ']');
1400                 break;
1401         }
1402         case LFUN_SERVER_NOTIFY: {
1403                 docstring const dispatch_buffer = d->keyseq.print(KeySequence::Portable);
1404                 dr.setMessage(dispatch_buffer);
1405                 theServer().notifyClient(to_utf8(dispatch_buffer));
1406                 break;
1407         }
1408
1409         case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
1410                 lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
1411                 break;
1412
1413         case LFUN_REPEAT: {
1414                 // repeat command
1415                 string countstr;
1416                 string rest = split(argument, countstr, ' ');
1417                 istringstream is(countstr);
1418                 int count = 0;
1419                 is >> count;
1420                 //lyxerr << "repeat: count: " << count << " cmd: " << rest << endl;
1421                 for (int i = 0; i < count; ++i)
1422                         dispatch(lyxaction.lookupFunc(rest));
1423                 break;
1424         }
1425
1426         case LFUN_COMMAND_SEQUENCE: {
1427                 // argument contains ';'-terminated commands
1428                 string arg = argument;
1429                 // FIXME: this LFUN should also work without any view.
1430                 Buffer * buffer = (current_view_ && current_view_->documentBufferView())
1431                                   ? &(current_view_->documentBufferView()->buffer()) : 0;
1432                 if (buffer)
1433                         buffer->undo().beginUndoGroup();
1434                 while (!arg.empty()) {
1435                         string first;
1436                         arg = split(arg, first, ';');
1437                         FuncRequest func(lyxaction.lookupFunc(first));
1438                         func.origin = cmd.origin;
1439                         dispatch(func);
1440                 }
1441                 // the buffer may have been closed by one action
1442                 if (theBufferList().isLoaded(buffer))
1443                         buffer->undo().endUndoGroup();
1444                 break;
1445         }
1446
1447         case LFUN_COMMAND_ALTERNATIVES: {
1448                 // argument contains ';'-terminated commands
1449                 string arg = argument;
1450                 while (!arg.empty()) {
1451                         string first;
1452                         arg = split(arg, first, ';');
1453                         FuncRequest func(lyxaction.lookupFunc(first));
1454                         func.origin = cmd.origin;
1455                         FuncStatus stat = getStatus(func);
1456                         if (stat.enabled()) {
1457                                 dispatch(func);
1458                                 break;
1459                         }
1460                 }
1461                 break;
1462         }
1463
1464         case LFUN_CALL: {
1465                 FuncRequest func;
1466                 if (theTopLevelCmdDef().lock(argument, func)) {
1467                         func.origin = cmd.origin;
1468                         dispatch(func);
1469                         theTopLevelCmdDef().release(argument);
1470                 } else {
1471                         if (func.action == LFUN_UNKNOWN_ACTION) {
1472                                 // unknown command definition
1473                                 lyxerr << "Warning: unknown command definition `"
1474                                                 << argument << "'"
1475                                                 << endl;
1476                         } else {
1477                                 // recursion detected
1478                                 lyxerr << "Warning: Recursion in the command definition `"
1479                                                 << argument << "' detected"
1480                                                 << endl;
1481                         }
1482                 }
1483                 break;
1484         }
1485
1486         case LFUN_PREFERENCES_SAVE:
1487                 lyxrc.write(support::makeAbsPath("preferences",
1488                         package().user_support().absFilename()), false);
1489                 break;
1490
1491         case LFUN_BUFFER_SAVE_AS_DEFAULT: {
1492                 string const fname = addName(addPath(package().user_support().absFilename(),
1493                         "templates/"), "defaults.lyx");
1494                 Buffer defaults(fname);
1495
1496                 istringstream ss(argument);
1497                 Lexer lex;
1498                 lex.setStream(ss);
1499                 int const unknown_tokens = defaults.readHeader(lex);
1500
1501                 if (unknown_tokens != 0) {
1502                         lyxerr << "Warning in LFUN_BUFFER_SAVE_AS_DEFAULT!\n"
1503                                << unknown_tokens << " unknown token"
1504                                << (unknown_tokens == 1 ? "" : "s")
1505                                << endl;
1506                 }
1507
1508                 if (defaults.writeFile(FileName(defaults.absFileName())))
1509                         dr.setMessage(bformat(_("Document defaults saved in %1$s"),
1510                                               makeDisplayPath(fname)));
1511                 else {
1512                         dr.setError(true);
1513                         dr.setMessage(from_ascii(N_("Unable to save document defaults")));
1514                 }
1515                 break;
1516         }
1517
1518         case LFUN_BOOKMARK_GOTO:
1519                 // go to bookmark, open unopened file and switch to buffer if necessary
1520                 gotoBookmark(convert<unsigned int>(to_utf8(cmd.argument())), true, true);
1521                 dr.update(Update::FitCursor);
1522                 break;
1523
1524         case LFUN_BOOKMARK_CLEAR:
1525                 theSession().bookmarks().clear();
1526                 break;
1527
1528         case LFUN_DEBUG_LEVEL_SET:
1529                 lyxerr.setLevel(Debug::value(to_utf8(cmd.argument())));
1530                 break;
1531
1532         default:
1533                 // Notify the caller that the action has not been dispatched.
1534                 dr.dispatched(false);
1535                 break;
1536         }
1537
1538         // The action has been dispatched in this method, nothing more to do.
1539         if (dr.dispatched())
1540                 return;
1541
1542         GuiView * lv = current_view_;
1543
1544         // Everything below is only for active window
1545         if (lv == 0)
1546                 return;
1547
1548         // Let the current GuiView dispatch its own actions.
1549         lv->dispatch(cmd, dr);
1550         if (dr.dispatched() && lv )
1551                 return;
1552
1553         BufferView * bv = lv->currentBufferView();
1554         LASSERT(bv, /**/);
1555
1556         // Let the current BufferView dispatch its own actions.
1557         bv->dispatch(cmd, dr);
1558         if (dr.dispatched())
1559                 return;
1560
1561         BufferView * doc_bv = lv->documentBufferView();
1562         // Try with the document BufferView dispatch if any.
1563         if (doc_bv) {
1564                 doc_bv->dispatch(cmd, dr);
1565                 if (dr.dispatched())
1566                         return;
1567         }
1568
1569         // OK, so try the current Buffer itself...
1570         bv->buffer().dispatch(cmd, dr);
1571         if (dr.dispatched())
1572                 return;
1573
1574         // and with the document Buffer.
1575         if (doc_bv) {
1576                 doc_bv->buffer().dispatch(cmd, dr);
1577                 if (dr.dispatched())
1578                         return;
1579         }
1580
1581         // Let the current Cursor dispatch its own actions.
1582         Cursor old = bv->cursor();
1583         bv->cursor().dispatch(cmd);
1584
1585         // notify insets we just left
1586         if (bv->cursor() != old) {
1587                 old.fixIfBroken();
1588                 bool badcursor = notifyCursorLeavesOrEnters(old, bv->cursor());
1589                 if (badcursor)
1590                         bv->cursor().fixIfBroken();
1591         }
1592
1593         // update completion. We do it here and not in
1594         // processKeySym to avoid another redraw just for a
1595         // changed inline completion
1596         if (cmd.origin == FuncRequest::KEYBOARD) {
1597                 if (cmd.action == LFUN_SELF_INSERT
1598                     || (cmd.action == LFUN_ERT_INSERT && bv->cursor().inMathed()))
1599                         lv->updateCompletion(bv->cursor(), true, true);
1600                 else if (cmd.action == LFUN_CHAR_DELETE_BACKWARD)
1601                         lv->updateCompletion(bv->cursor(), false, true);
1602                 else
1603                         lv->updateCompletion(bv->cursor(), false, false);
1604         }
1605
1606         dr = bv->cursor().result();
1607
1608         // if we executed a mutating lfun, mark the buffer as dirty
1609         Buffer * doc_buffer = (lv && lv->documentBufferView())
1610                       ? &(lv->documentBufferView()->buffer()) : 0;
1611         if (doc_buffer && theBufferList().isLoaded(doc_buffer)
1612                 && flag.enabled()
1613                 && !lyxaction.funcHasFlag(action, LyXAction::NoBuffer)
1614                 && !lyxaction.funcHasFlag(action, LyXAction::ReadOnly))
1615                 lv->currentBufferView()->buffer().markDirty();
1616 }
1617
1618
1619 docstring GuiApplication::viewStatusMessage()
1620 {
1621         // When meta-fake key is pressed, show the key sequence so far + "M-".
1622         if (d->meta_fake_bit != NoModifier)
1623                 return d->keyseq.print(KeySequence::ForGui) + "M-";
1624
1625         // Else, when a non-complete key sequence is pressed,
1626         // show the available options.
1627         if (d->keyseq.length() > 0 && !d->keyseq.deleted())
1628                 return d->keyseq.printOptions(true);
1629
1630         return docstring();
1631 }
1632
1633
1634 void GuiApplication::handleKeyFunc(FuncCode action)
1635 {
1636         char_type c = 0;
1637
1638         if (d->keyseq.length())
1639                 c = 0;
1640         GuiView * gv = currentView();
1641         LASSERT(gv && gv->currentBufferView(), return);
1642         BufferView * bv = gv->currentBufferView();
1643         bv->getIntl().getTransManager().deadkey(
1644                 c, get_accent(action).accent, bv->cursor().innerText(),
1645                 bv->cursor());
1646         // Need to clear, in case the minibuffer calls these
1647         // actions
1648         d->keyseq.clear();
1649         // copied verbatim from do_accent_char
1650         bv->cursor().resetAnchor();
1651         bv->processUpdateFlags(Update::FitCursor);
1652 }
1653
1654
1655 void GuiApplication::processKeySym(KeySymbol const & keysym, KeyModifier state)
1656 {
1657         LYXERR(Debug::KEY, "KeySym is " << keysym.getSymbolName());
1658
1659         GuiView * lv = currentView();
1660
1661         // Do nothing if we have nothing (JMarc)
1662         if (!keysym.isOK()) {
1663                 LYXERR(Debug::KEY, "Empty kbd action (probably composing)");
1664                 lv->restartCursor();
1665                 return;
1666         }
1667
1668         if (keysym.isModifier()) {
1669                 LYXERR(Debug::KEY, "isModifier true");
1670                 if (lv)
1671                         lv->restartCursor();
1672                 return;
1673         }
1674
1675         char_type encoded_last_key = keysym.getUCSEncoded();
1676
1677         // Do a one-deep top-level lookup for
1678         // cancel and meta-fake keys. RVDK_PATCH_5
1679         d->cancel_meta_seq.reset();
1680
1681         FuncRequest func = d->cancel_meta_seq.addkey(keysym, state);
1682         LYXERR(Debug::KEY, "action first set to [" << func.action << ']');
1683
1684         // When not cancel or meta-fake, do the normal lookup.
1685         // Note how the meta_fake Mod1 bit is OR-ed in and reset afterwards.
1686         // Mostly, meta_fake_bit = NoModifier. RVDK_PATCH_5.
1687         if ((func.action != LFUN_CANCEL) && (func.action != LFUN_META_PREFIX)) {
1688                 // remove Caps Lock and Mod2 as a modifiers
1689                 func = d->keyseq.addkey(keysym, (state | d->meta_fake_bit));
1690                 LYXERR(Debug::KEY, "action now set to [" << func.action << ']');
1691         }
1692
1693         // Dont remove this unless you know what you are doing.
1694         d->meta_fake_bit = NoModifier;
1695
1696         // Can this happen now ?
1697         if (func.action == LFUN_NOACTION)
1698                 func = FuncRequest(LFUN_COMMAND_PREFIX);
1699
1700         LYXERR(Debug::KEY, " Key [action=" << func.action << "]["
1701                 << d->keyseq.print(KeySequence::Portable) << ']');
1702
1703         // already here we know if it any point in going further
1704         // why not return already here if action == -1 and
1705         // num_bytes == 0? (Lgb)
1706
1707         if (d->keyseq.length() > 1)
1708                 lv->message(d->keyseq.print(KeySequence::ForGui));
1709
1710
1711         // Maybe user can only reach the key via holding down shift.
1712         // Let's see. But only if shift is the only modifier
1713         if (func.action == LFUN_UNKNOWN_ACTION && state == ShiftModifier) {
1714                 LYXERR(Debug::KEY, "Trying without shift");
1715                 func = d->keyseq.addkey(keysym, NoModifier);
1716                 LYXERR(Debug::KEY, "Action now " << func.action);
1717         }
1718
1719         if (func.action == LFUN_UNKNOWN_ACTION) {
1720                 // Hmm, we didn't match any of the keysequences. See
1721                 // if it's normal insertable text not already covered
1722                 // by a binding
1723                 if (keysym.isText() && d->keyseq.length() == 1) {
1724                         LYXERR(Debug::KEY, "isText() is true, inserting.");
1725                         func = FuncRequest(LFUN_SELF_INSERT,
1726                                            FuncRequest::KEYBOARD);
1727                 } else {
1728                         LYXERR(Debug::KEY, "Unknown, !isText() - giving up");
1729                         lv->message(_("Unknown function."));
1730                         lv->restartCursor();
1731                         return;
1732                 }
1733         }
1734
1735         if (func.action == LFUN_SELF_INSERT) {
1736                 if (encoded_last_key != 0) {
1737                         docstring const arg(1, encoded_last_key);
1738                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, arg,
1739                                              FuncRequest::KEYBOARD));
1740                         LYXERR(Debug::KEY, "SelfInsert arg[`" << to_utf8(arg) << "']");
1741                 }
1742         } else {
1743                 lyx::dispatch(func);
1744                 if (!lv)
1745                         return;
1746         }
1747 }
1748
1749
1750 void GuiApplication::dispatchDelayed(FuncRequest const & func)
1751 {
1752         d->func_request_queue_.push(func);
1753         QTimer::singleShot(0, this, SLOT(processFuncRequestQueue()));
1754 }
1755
1756
1757 void GuiApplication::resetGui()
1758 {
1759         // Set the language defined by the user.
1760         setGuiLanguage();
1761
1762         // Read menus
1763         if (!readUIFile(toqstr(lyxrc.ui_file)))
1764                 // Gives some error box here.
1765                 return;
1766
1767         if (d->global_menubar_)
1768                 d->menus_.fillMenuBar(d->global_menubar_, 0, false);
1769
1770         QHash<int, GuiView *>::iterator it;
1771         for (it = d->views_.begin(); it != d->views_.end(); ++it) {
1772                 GuiView * gv = *it;
1773                 setCurrentView(gv);
1774                 gv->setLayoutDirection(layoutDirection());
1775                 gv->resetDialogs();
1776         }
1777
1778         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
1779 }
1780
1781
1782 void GuiApplication::createView(int view_id)
1783 {
1784         createView(QString(), true, view_id);
1785 }
1786
1787
1788 void GuiApplication::createView(QString const & geometry_arg, bool autoShow,
1789         int view_id)
1790 {
1791         // release the keyboard which might have been grabed by the global
1792         // menubar on Mac to catch shortcuts even without any GuiView.
1793         if (d->global_menubar_)
1794                 d->global_menubar_->releaseKeyboard();
1795
1796         // create new view
1797         int id = view_id;
1798         while (d->views_.find(id) != d->views_.end())
1799                 id++;
1800
1801         LYXERR(Debug::GUI, "About to create new window with ID " << id);
1802         GuiView * view = new GuiView(id);
1803         // register view
1804         d->views_[id] = view;
1805
1806         if (autoShow) {
1807                 view->show();
1808                 setActiveWindow(view);
1809         }
1810
1811         if (!geometry_arg.isEmpty()) {
1812 #ifdef Q_WS_WIN
1813                 int x, y;
1814                 int w, h;
1815                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
1816                 re.indexIn(geometry_arg);
1817                 w = re.cap(1).toInt();
1818                 h = re.cap(2).toInt();
1819                 x = re.cap(3).toInt();
1820                 y = re.cap(4).toInt();
1821                 view->setGeometry(x, y, w, h);
1822 #endif
1823         }
1824         view->setFocus();
1825 }
1826
1827
1828 Clipboard & GuiApplication::clipboard()
1829 {
1830         return d->clipboard_;
1831 }
1832
1833
1834 Selection & GuiApplication::selection()
1835 {
1836         return d->selection_;
1837 }
1838
1839
1840 FontLoader & GuiApplication::fontLoader()
1841 {
1842         return d->font_loader_;
1843 }
1844
1845
1846 Toolbars const & GuiApplication::toolbars() const
1847 {
1848         return d->toolbars_;
1849 }
1850
1851
1852 Toolbars & GuiApplication::toolbars()
1853 {
1854         return d->toolbars_;
1855 }
1856
1857
1858 Menus const & GuiApplication::menus() const
1859 {
1860         return d->menus_;
1861 }
1862
1863
1864 Menus & GuiApplication::menus()
1865 {
1866         return d->menus_;
1867 }
1868
1869
1870 QList<int> GuiApplication::viewIds() const
1871 {
1872         return d->views_.keys();
1873 }
1874
1875
1876 ColorCache & GuiApplication::colorCache()
1877 {
1878         return d->color_cache_;
1879 }
1880
1881
1882 int GuiApplication::exec()
1883 {
1884         // asynchronously handle batch commands. This event will be in
1885         // the event queue in front of other asynchronous events. Hence,
1886         // we can assume in the latter that the gui is setup already.
1887         QTimer::singleShot(0, this, SLOT(execBatchCommands()));
1888
1889         return QApplication::exec();
1890 }
1891
1892
1893 void GuiApplication::exit(int status)
1894 {
1895         QApplication::exit(status);
1896 }
1897
1898
1899 void GuiApplication::setGuiLanguage()
1900 {
1901         // Set the language defined by the user.
1902         setRcGuiLanguage();
1903
1904         QString const default_language = toqstr(Messages::defaultLanguage());
1905         LYXERR(Debug::LOCALE, "Trying to set default locale to: " << default_language);
1906         QLocale const default_locale(default_language);
1907         QLocale::setDefault(default_locale);
1908
1909         // install translation file for Qt built-in dialogs
1910         QString const language_name = QString("qt_") + default_locale.name();
1911
1912         // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
1913         // Short-named translator can be loaded from a long name, but not the
1914         // opposite. Therefore, long name should be used without truncation.
1915         // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
1916         if (!d->qt_trans_.load(language_name,
1917                         QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
1918                 LYXERR(Debug::LOCALE, "Could not find Qt translations for locale "
1919                         << language_name);
1920         } else {
1921                 LYXERR(Debug::LOCALE, "Successfully installed Qt translations for locale "
1922                         << language_name);
1923         }
1924
1925         switch (default_locale.language()) {
1926         case QLocale::Arabic :
1927         case QLocale::Hebrew :
1928         case QLocale::Persian :
1929         case QLocale::Urdu :
1930         setLayoutDirection(Qt::RightToLeft);
1931                 break;
1932         default:
1933         setLayoutDirection(Qt::LeftToRight);
1934         }
1935 }
1936
1937
1938 void GuiApplication::processFuncRequestQueue()
1939 {
1940         while (!d->func_request_queue_.empty()) {
1941                 lyx::dispatch(d->func_request_queue_.back());
1942                 d->func_request_queue_.pop();
1943         }
1944 }
1945
1946
1947 void GuiApplication::execBatchCommands()
1948 {
1949         setGuiLanguage();
1950
1951         // Read menus
1952         if (!readUIFile(toqstr(lyxrc.ui_file)))
1953                 // Gives some error box here.
1954                 return;
1955
1956 #ifdef Q_WS_MACX
1957         // Create the global default menubar which is shown for the dialogs
1958         // and if no GuiView is visible.
1959         // This must be done after the session was recovered to know the "last files".
1960         d->global_menubar_ = new GlobalMenuBar();
1961         d->menus_.fillMenuBar(d->global_menubar_, 0, true);
1962 #endif
1963
1964         lyx::execBatchCommands();
1965 }
1966
1967
1968 QAbstractItemModel * GuiApplication::languageModel()
1969 {
1970         if (d->language_model_)
1971                 return d->language_model_;
1972
1973         QStandardItemModel * lang_model = new QStandardItemModel(this);
1974         lang_model->insertColumns(0, 1);
1975         int current_row;
1976         Languages::const_iterator it = lyx::languages.begin();
1977         Languages::const_iterator end = lyx::languages.end();
1978         for (; it != end; ++it) {
1979                 current_row = lang_model->rowCount();
1980                 lang_model->insertRows(current_row, 1);
1981                 QModelIndex item = lang_model->index(current_row, 0);
1982                 lang_model->setData(item, qt_(it->second.display()), Qt::DisplayRole);
1983                 lang_model->setData(item, toqstr(it->second.lang()), Qt::UserRole);
1984         }
1985         d->language_model_ = new QSortFilterProxyModel(this);
1986         d->language_model_->setSourceModel(lang_model);
1987 #if QT_VERSION >= 0x040300
1988         d->language_model_->setSortLocaleAware(true);
1989 #endif
1990         return d->language_model_;
1991 }
1992
1993
1994 void GuiApplication::restoreGuiSession()
1995 {
1996         if (!lyxrc.load_session)
1997                 return;
1998
1999         Session & session = theSession();
2000         LastOpenedSection::LastOpened const & lastopened =
2001                 session.lastOpened().getfiles();
2002
2003         FileName active_file;
2004         // do not add to the lastfile list since these files are restored from
2005         // last session, and should be already there (regular files), or should
2006         // not be added at all (help files).
2007         for (size_t i = 0; i < lastopened.size(); ++i) {
2008                 FileName const & file_name = lastopened[i].file_name;
2009                 if (d->views_.empty() || (!lyxrc.open_buffers_in_tabs
2010                           && current_view_->documentBufferView() != 0)) {
2011                         boost::crc_32_type crc;
2012                         string const & fname = file_name.absFilename();
2013                         crc = for_each(fname.begin(), fname.end(), crc);
2014                         createView(crc.checksum());
2015                 }
2016                 current_view_->loadDocument(file_name, false);
2017
2018                 if (lastopened[i].active)
2019                         active_file = file_name;
2020         }
2021
2022         // Restore last active buffer
2023         Buffer * buffer = theBufferList().getBuffer(active_file);
2024         if (buffer)
2025                 current_view_->setBuffer(buffer);
2026
2027         // clear this list to save a few bytes of RAM
2028         session.lastOpened().clear();
2029 }
2030
2031
2032 QString const GuiApplication::romanFontName()
2033 {
2034         QFont font;
2035         font.setKerning(false);
2036         font.setStyleHint(QFont::Serif);
2037         font.setFamily("serif");
2038
2039         return QFontInfo(font).family();
2040 }
2041
2042
2043 QString const GuiApplication::sansFontName()
2044 {
2045         QFont font;
2046         font.setKerning(false);
2047         font.setStyleHint(QFont::SansSerif);
2048         font.setFamily("sans");
2049
2050         return QFontInfo(font).family();
2051 }
2052
2053
2054 QString const GuiApplication::typewriterFontName()
2055 {
2056         QFont font;
2057         font.setKerning(false);
2058         font.setStyleHint(QFont::TypeWriter);
2059         font.setFamily("monospace");
2060
2061         return QFontInfo(font).family();
2062 }
2063
2064
2065 void GuiApplication::handleRegularEvents()
2066 {
2067         ForkedCallsController::handleCompletedProcesses();
2068 }
2069
2070
2071 bool GuiApplication::event(QEvent * e)
2072 {
2073         switch(e->type()) {
2074         case QEvent::FileOpen: {
2075                 // Open a file; this happens only on Mac OS X for now.
2076                 //
2077                 // We do this asynchronously because on startup the batch
2078                 // commands are not executed here yet and the gui is not ready
2079                 // therefore.
2080                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
2081                 dispatchDelayed(FuncRequest(LFUN_FILE_OPEN, qstring_to_ucs4(foe->file())));
2082                 e->accept();
2083                 return true;
2084         }
2085         default:
2086                 return QApplication::event(e);
2087         }
2088 }
2089
2090
2091 bool GuiApplication::notify(QObject * receiver, QEvent * event)
2092 {
2093         try {
2094                 return QApplication::notify(receiver, event);
2095         }
2096         catch (ExceptionMessage const & e) {
2097                 switch(e.type_) {
2098                 case ErrorException:
2099                         emergencyCleanup();
2100                         setQuitOnLastWindowClosed(false);
2101                         closeAllViews();
2102                         Alert::error(e.title_, e.details_);
2103 #ifndef NDEBUG
2104                         // Properly crash in debug mode in order to get a useful backtrace.
2105                         abort();
2106 #endif
2107                         // In release mode, try to exit gracefully.
2108                         this->exit(1);
2109
2110                 case BufferException: {
2111                         if (!current_view_->documentBufferView())
2112                                 return false;
2113                         Buffer * buf = &current_view_->documentBufferView()->buffer();
2114                         docstring details = e.details_ + '\n';
2115                         details += buf->emergencyWrite();
2116                         theBufferList().release(buf);
2117                         details += "\n" + _("The current document was closed.");
2118                         Alert::error(e.title_, details);
2119                         return false;
2120                 }
2121                 case WarningException:
2122                         Alert::warning(e.title_, e.details_);
2123                         return false;
2124                 }
2125         }
2126         catch (exception const & e) {
2127                 docstring s = _("LyX has caught an exception, it will now "
2128                         "attempt to save all unsaved documents and exit."
2129                         "\n\nException: ");
2130                 s += from_ascii(e.what());
2131                 Alert::error(_("Software exception Detected"), s);
2132                 lyx_exit(1);
2133         }
2134         catch (...) {
2135                 docstring s = _("LyX has caught some really weird exception, it will "
2136                         "now attempt to save all unsaved documents and exit.");
2137                 Alert::error(_("Software exception Detected"), s);
2138                 lyx_exit(1);
2139         }
2140
2141         return false;
2142 }
2143
2144
2145 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
2146 {
2147         QColor const & qcol = d->color_cache_.get(col);
2148         if (!qcol.isValid()) {
2149                 rgbcol.r = 0;
2150                 rgbcol.g = 0;
2151                 rgbcol.b = 0;
2152                 return false;
2153         }
2154         rgbcol.r = qcol.red();
2155         rgbcol.g = qcol.green();
2156         rgbcol.b = qcol.blue();
2157         return true;
2158 }
2159
2160
2161 string const GuiApplication::hexName(ColorCode col)
2162 {
2163         return ltrim(fromqstr(d->color_cache_.get(col).name()), "#");
2164 }
2165
2166
2167 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
2168 {
2169         SocketNotifier * sn = new SocketNotifier(this, fd, func);
2170         d->socket_notifiers_[fd] = sn;
2171         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
2172 }
2173
2174
2175 void GuiApplication::socketDataReceived(int fd)
2176 {
2177         d->socket_notifiers_[fd]->func_();
2178 }
2179
2180
2181 void GuiApplication::unregisterSocketCallback(int fd)
2182 {
2183         d->socket_notifiers_.take(fd)->setEnabled(false);
2184 }
2185
2186
2187 void GuiApplication::commitData(QSessionManager & sm)
2188 {
2189         /// The implementation is required to avoid an application exit
2190         /// when session state save is triggered by session manager.
2191         /// The default implementation sends a close event to all
2192         /// visible top level widgets when session managment allows
2193         /// interaction.
2194         /// We are changing that to close all wiew one by one.
2195         /// FIXME: verify if the default implementation is enough now.
2196         if (sm.allowsInteraction() && !closeAllViews())
2197                 sm.cancel();
2198 }
2199
2200
2201 void GuiApplication::unregisterView(GuiView * gv)
2202 {
2203         LASSERT(d->views_[gv->id()] == gv, /**/);
2204         d->views_.remove(gv->id());
2205         if (current_view_ == gv)
2206                 current_view_ = 0;
2207 }
2208
2209
2210 bool GuiApplication::closeAllViews()
2211 {
2212         if (d->views_.empty())
2213                 return true;
2214
2215         // When a view/window was closed before without quitting LyX, there
2216         // are already entries in the lastOpened list.
2217         theSession().lastOpened().clear();
2218
2219         QList<GuiView *> views = d->views_.values();
2220         foreach (GuiView * view, views) {
2221                 if (!view->close())
2222                         return false;
2223         }
2224
2225         d->views_.clear();
2226         return true;
2227 }
2228
2229
2230 GuiView & GuiApplication::view(int id) const
2231 {
2232         LASSERT(d->views_.contains(id), /**/);
2233         return *d->views_.value(id);
2234 }
2235
2236
2237 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
2238 {
2239         QList<GuiView *> views = d->views_.values();
2240         foreach (GuiView * view, views)
2241                 view->hideDialog(name, inset);
2242 }
2243
2244
2245 Buffer const * GuiApplication::updateInset(Inset const * inset) const
2246 {
2247         Buffer const * buffer_ = 0;
2248         QHash<int, GuiView *>::iterator end = d->views_.end();
2249         for (QHash<int, GuiView *>::iterator it = d->views_.begin(); it != end; ++it) {
2250                 if (Buffer const * ptr = (*it)->updateInset(inset))
2251                         buffer_ = ptr;
2252         }
2253         return buffer_;
2254 }
2255
2256
2257 bool GuiApplication::searchMenu(FuncRequest const & func,
2258         docstring_list & names) const
2259 {
2260         return d->menus_.searchMenu(func, names);
2261 }
2262
2263
2264 bool GuiApplication::readUIFile(QString const & name, bool include)
2265 {
2266         LYXERR(Debug::INIT, "About to read " << name << "...");
2267
2268         FileName ui_path;
2269         if (include) {
2270                 ui_path = libFileSearch("ui", name, "inc");
2271                 if (ui_path.empty())
2272                         ui_path = libFileSearch("ui", changeExtension(name, "inc"));
2273         } else {
2274                 ui_path = libFileSearch("ui", name, "ui");
2275         }
2276
2277         if (ui_path.empty()) {
2278                 static const QString defaultUIFile = "default";
2279                 LYXERR(Debug::INIT, "Could not find " << name);
2280                 if (include) {
2281                         Alert::warning(_("Could not find UI definition file"),
2282                                 bformat(_("Error while reading the included file\n%1$s\n"
2283                                         "Please check your installation."), qstring_to_ucs4(name)));
2284                         return false;
2285                 }
2286                 if (name == defaultUIFile) {
2287                         LYXERR(Debug::INIT, "Could not find default UI file!!");
2288                         Alert::warning(_("Could not find default UI file"),
2289                                 _("LyX could not find the default UI file!\n"
2290                                   "Please check your installation."));
2291                         return false;
2292                 }
2293                 Alert::warning(_("Could not find UI definition file"),
2294                 bformat(_("Error while reading the configuration file\n%1$s\n"
2295                         "Falling back to default.\n"
2296                         "Please look under Tools>Preferences>User Interface and\n"
2297                         "check which User Interface file you are using."), qstring_to_ucs4(name)));
2298                 return readUIFile(defaultUIFile, false);
2299         }
2300
2301         // Ensure that a file is read only once (prevents include loops)
2302         static QStringList uifiles;
2303         QString const uifile = toqstr(ui_path.absFilename());
2304         if (uifiles.contains(uifile)) {
2305                 if (!include) {
2306                         // We are reading again the top uifile so reset the safeguard:
2307                         uifiles.clear();
2308                         d->menus_.reset();
2309                         d->toolbars_.reset();
2310                 } else {
2311                         LYXERR(Debug::INIT, "UI file '" << name << "' has been read already. "
2312                                 << "Is this an include loop?");
2313                         return false;
2314                 }
2315         }
2316         uifiles.push_back(uifile);
2317
2318         LYXERR(Debug::INIT, "Found " << name << " in " << ui_path);
2319
2320         enum {
2321                 ui_menuset = 1,
2322                 ui_toolbars,
2323                 ui_toolbarset,
2324                 ui_include,
2325                 ui_last
2326         };
2327
2328         LexerKeyword uitags[] = {
2329                 { "include", ui_include },
2330                 { "menuset", ui_menuset },
2331                 { "toolbars", ui_toolbars },
2332                 { "toolbarset", ui_toolbarset }
2333         };
2334
2335         Lexer lex(uitags);
2336         lex.setFile(ui_path);
2337         if (!lex.isOK()) {
2338                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
2339                        << endl;
2340         }
2341
2342         if (lyxerr.debugging(Debug::PARSER))
2343                 lex.printTable(lyxerr);
2344
2345         // store which ui files define Toolbars
2346         static QStringList toolbar_uifiles;
2347
2348         while (lex.isOK()) {
2349                 switch (lex.lex()) {
2350                 case ui_include: {
2351                         lex.next(true);
2352                         QString const file = toqstr(lex.getString());
2353                         if (!readUIFile(file, true))
2354                                 return false;
2355                         break;
2356                 }
2357                 case ui_menuset:
2358                         d->menus_.read(lex);
2359                         break;
2360
2361                 case ui_toolbarset:
2362                         d->toolbars_.readToolbars(lex);
2363                         break;
2364
2365                 case ui_toolbars:
2366                         d->toolbars_.readToolbarSettings(lex);
2367                         toolbar_uifiles.push_back(uifile);
2368                         break;
2369
2370                 default:
2371                         if (!rtrim(lex.getString()).empty())
2372                                 lex.printError("LyX::ReadUIFile: "
2373                                                "Unknown menu tag: `$$Token'");
2374                         break;
2375                 }
2376         }
2377
2378         if (include)
2379                 return true;
2380
2381         QSettings settings;
2382         settings.beginGroup("ui_files");
2383         bool touched = false;
2384         for (int i = 0; i != uifiles.size(); ++i) {
2385                 QFileInfo fi(uifiles[i]);
2386                 QDateTime const date_value = fi.lastModified();
2387                 QString const name_key = QString::number(i);
2388                 // if an ui file which defines Toolbars has changed,
2389                 // we have to reset the settings
2390                 if (toolbar_uifiles.contains(uifiles[i])
2391                  && (!settings.contains(name_key)
2392                  || settings.value(name_key).toString() != uifiles[i]
2393                  || settings.value(name_key + "/date").toDateTime() != date_value)) {
2394                         touched = true;
2395                         settings.setValue(name_key, uifiles[i]);
2396                         settings.setValue(name_key + "/date", date_value);
2397                 }
2398         }
2399         settings.endGroup();
2400         if (touched)
2401                 settings.remove("views");
2402
2403         return true;
2404 }
2405
2406
2407 void GuiApplication::onLastWindowClosed()
2408 {
2409         if (d->global_menubar_)
2410                 d->global_menubar_->grabKeyboard();
2411 }
2412
2413
2414 ////////////////////////////////////////////////////////////////////////
2415 //
2416 // X11 specific stuff goes here...
2417
2418 #ifdef Q_WS_X11
2419 bool GuiApplication::x11EventFilter(XEvent * xev)
2420 {
2421         if (!current_view_)
2422                 return false;
2423
2424         switch (xev->type) {
2425         case SelectionRequest: {
2426                 if (xev->xselectionrequest.selection != XA_PRIMARY)
2427                         break;
2428                 LYXERR(Debug::SELECTION, "X requested selection.");
2429                 BufferView * bv = current_view_->currentBufferView();
2430                 if (bv) {
2431                         docstring const sel = bv->requestSelection();
2432                         if (!sel.empty())
2433                                 d->selection_.put(sel);
2434                 }
2435                 break;
2436         }
2437         case SelectionClear: {
2438                 if (xev->xselectionclear.selection != XA_PRIMARY)
2439                         break;
2440                 LYXERR(Debug::SELECTION, "Lost selection.");
2441                 BufferView * bv = current_view_->currentBufferView();
2442                 if (bv)
2443                         bv->clearSelection();
2444                 break;
2445         }
2446         }
2447         return false;
2448 }
2449 #endif
2450
2451 } // namespace frontend
2452
2453
2454 void hideDialogs(std::string const & name, Inset * inset)
2455 {
2456         if (theApp())
2457                 frontend::guiApp->hideDialogs(name, inset);
2458 }
2459
2460
2461 ////////////////////////////////////////////////////////////////////
2462 //
2463 // Font stuff
2464 //
2465 ////////////////////////////////////////////////////////////////////
2466
2467 frontend::FontLoader & theFontLoader()
2468 {
2469         LASSERT(frontend::guiApp, /**/);
2470         return frontend::guiApp->fontLoader();
2471 }
2472
2473
2474 frontend::FontMetrics const & theFontMetrics(Font const & f)
2475 {
2476         return theFontMetrics(f.fontInfo());
2477 }
2478
2479
2480 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
2481 {
2482         LASSERT(frontend::guiApp, /**/);
2483         return frontend::guiApp->fontLoader().metrics(f);
2484 }
2485
2486
2487 ////////////////////////////////////////////////////////////////////
2488 //
2489 // Misc stuff
2490 //
2491 ////////////////////////////////////////////////////////////////////
2492
2493 frontend::Clipboard & theClipboard()
2494 {
2495         LASSERT(frontend::guiApp, /**/);
2496         return frontend::guiApp->clipboard();
2497 }
2498
2499
2500 frontend::Selection & theSelection()
2501 {
2502         LASSERT(frontend::guiApp, /**/);
2503         return frontend::guiApp->selection();
2504 }
2505
2506
2507 } // namespace lyx
2508
2509 #include "moc_GuiApplication.cpp"