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 "GuiWorkArea.h"
  42 #include "Intl.h"
  43 #include "KeyMap.h"
  44 #include "Language.h"
  45 #include "LaTeXPackages.h"
  46 #include "Lexer.h"
  47 #include "LyX.h"
  48 #include "LyXAction.h"
  49 #include "LyXRC.h"
  50 #include "Paragraph.h"
  51 #include "Server.h"
  52 #include "Session.h"
  53 #include "SpellChecker.h"
  54 #include "Thesaurus.h"
  55 #include "version.h"
  56
  57 #include "support/convert.h"
  58 #include "support/debug.h"
  59 #include "support/ExceptionMessage.h"
  60 #include "support/FileName.h"
  61 #include "support/filetools.h"
  62 #include "support/foreach.h"
  63 #include "support/ForkedCalls.h"
  64 #include "support/gettext.h"
  65 #include "support/lassert.h"
  66 #include "support/lstrings.h"
  67 #include "support/lyxalgo.h" // sorted
  68 #include "support/Messages.h"
  69 #include "support/os.h"
  70 #include "support/Package.h"
  71 #include "support/PathChanger.h"
  72 #include "support/Systemcall.h"
  73
  74 #ifdef Q_WS_MACX
  75 #include "support/AppleScript.h"
  76 #include "support/linkback/LinkBackProxy.h"
  77 #endif
  78
  79 #include <queue>
  80
  81 #include <QByteArray>
  82 #include <QClipboard>
  83 #include <QDateTime>
  84 #include <QDir>
  85 #include <QEvent>
  86 #include <QEventLoop>
  87 #include <QFileOpenEvent>
  88 #include <QFileInfo>
  89 #include <QHash>
  90 #include <QIcon>
  91 #include <QImageReader>
  92 #include <QKeyEvent>
  93 #include <QLocale>
  94 #include <QLibraryInfo>
  95 #include <QList>
  96 #include <QMenuBar>
  97 #include <QMimeData>
  98 #include <QObject>
  99 #include <QPixmap>
 100 #include <QPixmapCache>
 101 #include <QRegExp>
 102 #include <QSessionManager>
 103 #include <QSettings>
 104 #include <QShowEvent>
 105 #include <QSocketNotifier>
 106 #include <QSortFilterProxyModel>
 107 #include <QStandardItemModel>
 108 #include <QTextCodec>
 109 #include <QTimer>
 110 #include <QTranslator>
 111 #include <QThreadPool>
 112 #include <QWidget>
 113
 114 #ifdef Q_WS_X11
 115 #include <X11/Xatom.h>
 116 #include <X11/Xlib.h>
 117 #undef CursorShape
 118 #undef None
 119 #endif
 120
 121 #ifdef Q_WS_WIN
 122 #include <QWindowsMime>
 123 #ifdef Q_CC_GNU
 124 #include <wtypes.h>
 125 #endif
 126 #include <objidl.h>
 127 #endif // Q_WS_WIN
 128
 129 #ifdef Q_WS_MACX
 130 #include <QMacPasteboardMime>
 131 #endif // Q_WS_MACX
 132
 133 #include "support/bind.h"
 134 #include <boost/crc.hpp>
 135
 136 #include <exception>
 137 #include <sstream>
 138 #include <vector>
 139
 140 using namespace std;
 141 using namespace lyx::support;
 142
 143
 144 static void initializeResources()
 145 {
 146         static bool initialized = false;
 147         if (!initialized) {
 148                 Q_INIT_RESOURCE(Resources);
 149                 initialized = true;
 150         }
 151 }
 152
 153
 154 namespace lyx {
 155
 156 frontend::Application * createApplication(int & argc, char * argv[])
 157 {
 158 #ifndef Q_WS_X11
 159         // prune -geometry argument(s) by shifting
 160         // the following ones 2 places down.
 161         for (int i = 0 ; i < argc ; ++i) {
 162                 if (strcmp(argv[i], "-geometry") == 0) {
 163                         int const remove = (i+1) < argc ? 2 : 1;
 164                         argc -= remove;
 165                         for (int j = i; j < argc; ++j)
 166                                 argv[j] = argv[j + remove];
 167                         --i;
 168                 }
 169         }
 170 #endif
 171         frontend::GuiApplication * guiApp = new frontend::GuiApplication(argc, argv);
 172         // I'd rather do that in the constructor, but I do not think that
 173         // the palette is accessible there.
 174         guiApp->colorCache().setPalette(guiApp->palette());
 175         return guiApp;
 176 }
 177
 178
 179 void setLocale()
 180 {
 181         QLocale theLocale;
 182         if (lyxrc.gui_language == "auto") {
 183                 theLocale = QLocale::system();
 184         } else {
 185                 Language const * l = languages.getLanguage(lyxrc.gui_language);
 186                 string const code = l ? l->code() : string();
 187                 theLocale = QLocale(toqstr(code));
 188         }
 189         string const code = fromqstr(theLocale.name());
 190         // Qt tries to outsmart us and transforms en_US to C.
 191         Messages::guiLanguage((code == "C") ? "en_US" : code);
 192         QLocale::setDefault(theLocale);
 193         setlocale(LC_NUMERIC, "C");
 194 }
 195
 196
 197 namespace frontend {
 198
 199
 200 /// Return the list of loadable formats.
 201 vector<string> loadableImageFormats()
 202 {
 203         vector<string> fmts;
 204
 205         QList<QByteArray> qt_formats = QImageReader::supportedImageFormats();
 206
 207         LYXERR(Debug::GRAPHICS,
 208                 "\nThe image loader can load the following directly:\n");
 209
 210         if (qt_formats.empty())
 211                 LYXERR(Debug::GRAPHICS, "\nQt4 Problem: No Format available!");
 212
 213         for (QList<QByteArray>::const_iterator it = qt_formats.begin(); it != qt_formats.end(); ++it) {
 214
 215                 LYXERR(Debug::GRAPHICS, (const char *) *it << ", ");
 216
 217                 string ext = ascii_lowercase((const char *) *it);
 218                 // special case
 219                 if (ext == "jpeg")
 220                         ext = "jpg";
 221                 fmts.push_back(ext);
 222         }
 223
 224         return fmts;
 225 }
 226
 227
 228 ////////////////////////////////////////////////////////////////////////
 229 //
 230 // Icon loading support code
 231 //
 232 ////////////////////////////////////////////////////////////////////////
 233
 234 namespace {
 235
 236 struct PngMap {
 237         QString key;
 238         QString value;
 239 };
 240
 241
 242 bool operator<(PngMap const & lhs, PngMap const & rhs)
 243 {
 244         return lhs.key < rhs.key;
 245 }
 246
 247
 248 class CompareKey {
 249 public:
 250         CompareKey(QString const & name) : name_(name) {}
 251         bool operator()(PngMap const & other) const { return other.key == name_; }
 252 private:
 253         QString const name_;
 254 };
 255
 256
 257 // this must be sorted alphabetically
 258 // Upper case comes before lower case
 259 // Please don't change the formatting, this list is parsed by
 260 // development/tools/generate_symbols_images.py.
 261 PngMap sorted_png_map[] = {
 262         { "Arrownot", "arrownot2"},
 263         { "Arrowvert", "arrowvert2"},
 264         { "Bowtie", "bowtie2" },
 265         { "Box", "box2" },
 266         { "Bumpeq", "bumpeq2" },
 267         { "CIRCLE", "circle3" },
 268         { "Cap", "cap2" },
 269         { "CheckedBox", "checkedbox2" },
 270         { "Circle", "circle2" },
 271         { "Colonapprox", "colonapprox2" },
 272         { "Coloneq", "coloneq2" },
 273         { "Coloneqq", "coloneqq2" },
 274         { "Colonsim", "colonsim2" },
 275         { "Cup", "cup2" },
 276         { "DOWNarrow", "downarrow3" },
 277         { "Delta", "delta2" },
 278         { "Diamond", "diamond2" },
 279         { "Doteq", "doteq2" },
 280         { "Downarrow", "downarrow2" },
 281         { "Eqcolon", "eqcolon2" },
 282         { "Eqqcolon", "eqqcolon2" },
 283         { "Gamma", "gamma2" },
 284         { "Join", "join2" },
 285         { "LEFTCIRCLE", "leftcircle3" },
 286         { "LEFTarrow", "leftarrow3" },
 287         { "LEFTcircle", "leftcircle4" },
 288         { "LHD", "lhd2" },
 289         { "Lambda", "lambda2" },
 290         { "Lbag", "lbag2"},
 291         { "Leftarrow", "leftarrow2" },
 292         { "Leftcircle", "leftcircle2" },
 293         { "Leftrightarrow", "leftrightarrow2" },
 294         { "Longarrownot", "longarrownot2"},
 295         { "Longleftarrow", "longleftarrow2" },
 296         { "Longleftrightarrow", "longleftrightarrow2" },
 297         { "Longmapsfrom", "longmapsfrom2"},
 298         { "Longmapsto", "longmapsto2"},
 299         { "Longrightarrow", "longrightarrow2" },
 300         { "Mapsfrom", "mapsfrom2"},
 301         { "Mapsfromchar", "mapsfromchar2"},
 302         { "Mapsto", "mapsto2"},
 303         { "Mapstochar", "mapstochar2"},
 304         { "Omega", "omega2" },
 305         { "Phi", "phi2" },
 306         { "Pi", "pi2" },
 307         { "Psi", "psi2" },
 308         { "RHD", "rhd2" },
 309         { "RIGHTCIRCLE", "rightcircle3" },
 310         { "RIGHTarrow", "rightarrow3" },
 311         { "RIGHTcircle", "rightcircle4" },
 312         { "Rbag", "rbag2"},
 313         { "Rightarrow", "rightarrow2" },
 314         { "Rightcircle", "rightcircle2" },
 315         { "Sigma", "sigma2" },
 316         { "Square", "square2" },
 317         { "Subset", "subset2" },
 318         { "Supset", "supset2" },
 319         { "Theta", "theta2" },
 320         { "Thorn", "thorn2" },
 321         { "UParrow", "uparrow3" },
 322         { "Uparrow", "uparrow2" },
 323         { "Updownarrow", "updownarrow2" },
 324         { "Upsilon", "upsilon2" },
 325         { "Vdash", "vdash3" },
 326         { "Vert", "vert2" },
 327         { "XBox", "xbox3" },
 328         { "Xbox", "xbox2" },
 329         { "Xi", "xi2" },
 330         { "nLeftarrow", "nleftarrow2" },
 331         { "nLeftrightarrow", "nleftrightarrow2" },
 332         { "nRightarrow", "nrightarrow2" },
 333         { "nVDash", "nvdash3" },
 334         { "nVdash", "nvdash4" },
 335         { "nvDash", "nvdash2" },
 336         { "textrm \\AA", "textrm_AA"},
 337         { "textrm \\O", "textrm_O"},
 338         { "vDash", "vdash2" },
 339         { "varDelta", "vardelta2" },
 340         { "varGamma", "vargamma2" },
 341         { "varLambda", "varlambda2" },
 342         { "varOmega", "varomega2" },
 343         { "varPhi", "varphi2" },
 344         { "varPi", "varpi2" },
 345         { "varPsi", "varpsi2" },
 346         { "varSigma", "varsigma2" },
 347         { "varTheta", "vartheta2" },
 348         { "varUpsilon", "varupsilon2" },
 349         { "varXi", "varxi2" }
 350 };
 351
 352
 353 size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
 354
 355 // This list specifies which system's theme icon is related to which lyx
 356 // command. It was based on:
 357 // http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
 358 // this must be sorted alphabetically
 359 // Upper case comes before lower case
 360 PngMap sorted_theme_icon_map[] = {
 361         { "bookmark-goto 0", "go-jump" },
 362         { "buffer-new", "document-new" },
 363         { "buffer-print", "document-print" },
 364         { "buffer-write", "document-save" },
 365         { "buffer-write-as", "document-save-as" },
 366         { "buffer-zoom-in", "zoom-in" },
 367         { "buffer-zoom-out", "zoom-out" },
 368         { "copy", "edit-copy" },
 369         { "cut", "edit-cut" },
 370         { "depth-decrement", "format-indent-less" },
 371         { "depth-increment", "format-indent-more" },
 372         { "dialog-show print", "document-print" },
 373         { "dialog-show spellchecker", "tools-check-spelling" },
 374         { "dialog-show-new-inset graphics", "insert-image" },
 375         { "dialog-toggle findreplaceadv", "edit-find-replace" },
 376         { "file-open", "document-open" },
 377         { "font-bold", "format-text-bold" },
 378         { "font-ital", "format-text-italic" },
 379         { "font-strikeout", "format-text-strikethrough" },
 380         { "font-underline", "format-text-underline" },
 381         { "lyx-quit", "application-exit" },
 382         { "paste", "edit-paste" },
 383         { "redo", "edit-redo" },
 384         { "undo", "edit-undo" },
 385         { "window-close", "window-close" },
 386         { "window-new", "window-new" }
 387 };
 388
 389 size_t const nr_sorted_theme_icon_map = sizeof(sorted_theme_icon_map) / sizeof(PngMap);
 390
 391
 392 QString findPng(QString const & name)
 393 {
 394         PngMap const * const begin = sorted_png_map;
 395         PngMap const * const end = begin + nr_sorted_png_map;
 396         LATTEST(sorted(begin, end));
 397
 398         PngMap const * const it = find_if(begin, end, CompareKey(name));
 399
 400         QString png_name;
 401         if (it != end) {
 402                 png_name = it->value;
 403         } else {
 404                 png_name = name;
 405                 png_name.replace('_', "underscore");
 406                 png_name.replace(' ', '_');
 407
 408                 // This way we can have "math-delim { }" on the toolbar.
 409                 png_name.replace('(', "lparen");
 410                 png_name.replace(')', "rparen");
 411                 png_name.replace('[', "lbracket");
 412                 png_name.replace(']', "rbracket");
 413                 png_name.replace('{', "lbrace");
 414                 png_name.replace('}', "rbrace");
 415                 png_name.replace('|', "bars");
 416                 png_name.replace(',', "thinspace");
 417                 png_name.replace(':', "mediumspace");
 418                 png_name.replace(';', "thickspace");
 419                 png_name.replace('!', "negthinspace");
 420         }
 421
 422         LYXERR(Debug::GUI, "findPng(" << name << ")\n"
 423                 << "Looking for math PNG called \"" << png_name << '"');
 424         return png_name;
 425 }
 426
 427 } // namespace anon
 428
 429
 430 QString themeIconName(QString const & action)
 431 {
 432         PngMap const * const begin = sorted_theme_icon_map;
 433         PngMap const * const end = begin + nr_sorted_theme_icon_map;
 434         LASSERT(sorted(begin, end), /**/);
 435
 436         PngMap const * const it = find_if(begin, end, CompareKey(action));
 437
 438         if (it != end)
 439                 return it->value;
 440         return QString();
 441 }
 442
 443
 444 QString iconName(FuncRequest const & f, bool unknown)
 445 {
 446         initializeResources();
 447         QString name1;
 448         QString name2;
 449         QString path;
 450         switch (f.action()) {
 451         case LFUN_MATH_INSERT:
 452                 if (!f.argument().empty()) {
 453                         path = "math/";
 454                         name1 = findPng(toqstr(f.argument()).mid(1));
 455                 }
 456                 break;
 457         case LFUN_MATH_DELIM:
 458         case LFUN_MATH_BIGDELIM:
 459                 path = "math/";
 460                 name1 = findPng(toqstr(f.argument()));
 461                 break;
 462         case LFUN_CALL:
 463                 path = "commands/";
 464                 name1 = toqstr(f.argument());
 465                 break;
 466         case LFUN_COMMAND_ALTERNATIVES: {
 467                 // use the first of the alternative commands
 468                 docstring firstcom;
 469                 docstring dummy = split(f.argument(), firstcom, ';');
 470                 name1 = toqstr(firstcom);
 471                 // FIXME: we should rename the icons to tabular-xxx instead of
 472                 // "tabular-feature-xxx"
 473                 name1.replace("inset-modify tabular", "tabular-feature");
 474                 name1.replace(' ', '_');
 475                 break;
 476         }
 477         case LFUN_INSET_MODIFY: {
 478                 // FIXME: we should rename the icons to tabular-xxx instead of
 479                 // "tabular-feature-xxx" and generalize this naming to all
 480                 // insets, not to tabular using ones.
 481                 string inset_name;
 482                 string const command = split(to_utf8(f.argument()), inset_name, ' ');
 483                 if (insetCode(inset_name) == TABULAR_CODE) {
 484                         name1 = "tabular-feature "+ toqstr(command);
 485                         name1.replace(' ', '_');
 486                         break;
 487                 }
 488         }
 489         default:
 490                 name2 = toqstr(lyxaction.getActionName(f.action()));
 491                 name1 = name2;
 492
 493                 if (!f.argument().empty()) {
 494                         name1 = name2 + ' ' + toqstr(f.argument());
 495                         name1.replace(' ', '_');
 496                         name1.replace('\\', "backslash");
 497                 }
 498         }
 499
 500         QStringList imagedirs;
 501         imagedirs << "images/" << "images/ipa/";
 502         for (int i = 0; i < imagedirs.size(); ++i) {
 503                 QString imagedir = imagedirs.at(i) + path;
 504                 FileName fname = imageLibFileSearch(imagedir, name1, "png");
 505                 if (fname.exists())
 506                         return toqstr(fname.absFileName());
 507
 508                 fname = imageLibFileSearch(imagedir, name2, "png");
 509                 if (fname.exists())
 510                         return toqstr(fname.absFileName());
 511         }
 512
 513         path = ":/images/" + path;
 514         QDir res(path);
 515         if (!res.exists()) {
 516                 LYXERR0("Directory " << path << " not found in resource!");
 517                 return QString();
 518         }
 519         name1 += ".png";
 520         if (res.exists(name1))
 521                 return path + name1;
 522
 523         name2 += ".png";
 524         if (res.exists(name2))
 525                 return path + name2;
 526
 527         LYXERR(Debug::GUI, "Cannot find icon with filename "
 528                            << "\"" << name1 << "\""
 529                            << " or filename "
 530                            << "\"" << name2 << "\""
 531                            << " for command \""
 532                            << lyxaction.getActionName(f.action())
 533                            << '(' << to_utf8(f.argument()) << ")\"");
 534
 535         if (unknown) {
 536                 QString imagedir = "images/";
 537                 FileName fname = imageLibFileSearch(imagedir, "unknown", "png");
 538                 if (fname.exists())
 539                         return toqstr(fname.absFileName());
 540                 return QString(":/images/unknown.png");
 541         }
 542
 543         return QString();
 544 }
 545
 546 QPixmap getPixmap(QString const & path, QString const & name, QString const & ext)
 547 {
 548         QPixmap pixmap;
 549         QString imagedir = path;
 550         FileName fname = imageLibFileSearch(imagedir, name, ext);
 551         QString path1 = toqstr(fname.absFileName());
 552         QString path2 = ":/" + path + name + "." + ext;
 553
 554         if (pixmap.load(path1)) {
 555                 return pixmap;
 556         }
 557         else if (pixmap.load(path2)) {
 558                 return pixmap;
 559         }
 560
 561         LYXERR0("Cannot load pixmap \""
 562                 << path << name << '.' << ext
 563                 << "\", please verify resource system!");
 564
 565         return QPixmap();
 566 }
 567
 568 QIcon getIcon(FuncRequest const & f, bool unknown)
 569 {
 570 #if (QT_VERSION >= 0x040600)
 571         if (lyxrc.use_system_theme_icons) {
 572                 QString action = toqstr(lyxaction.getActionName(f.action()));
 573                 if (!f.argument().empty())
 574                         action += " " + toqstr(f.argument());
 575                 QString const theme_icon = themeIconName(action);
 576                 if (QIcon::hasThemeIcon(theme_icon))
 577                         return QIcon::fromTheme(theme_icon);
 578         }
 579 #endif
 580
 581         QString icon = iconName(f, unknown);
 582         if (icon.isEmpty())
 583                 return QIcon();
 584
 585         //LYXERR(Debug::GUI, "Found icon: " << icon);
 586         QPixmap pm;
 587         if (!pm.load(icon)) {
 588                 LYXERR0("Cannot load icon " << icon << " please verify resource system!");
 589                 return QIcon();
 590         }
 591
 592         return QIcon(pm);
 593 }
 594
 595
 596 ////////////////////////////////////////////////////////////////////////
 597 //
 598 // LyX server support code.
 599 //
 600 ////////////////////////////////////////////////////////////////////////
 601
 602 class SocketNotifier : public QSocketNotifier
 603 {
 604 public:
 605         /// connect a connection notification from the LyXServerSocket
 606         SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
 607                 : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
 608         {}
 609
 610 public:
 611         /// The callback function
 612         Application::SocketCallback func_;
 613 };
 614
 615
 616 ////////////////////////////////////////////////////////////////////////
 617 //
 618 // Mac specific stuff goes here...
 619 //
 620 ////////////////////////////////////////////////////////////////////////
 621
 622 class MenuTranslator : public QTranslator
 623 {
 624 public:
 625         MenuTranslator(QObject * parent)
 626                 : QTranslator(parent)
 627         {}
 628
 629         QString translate(const char * /*context*/,
 630           const char * sourceText,
 631           const char * /*comment*/ = 0) const
 632         {
 633                 string const s = sourceText;
 634                 if (s == N_("About %1") || s == N_("Preferences")
 635                                 || s == N_("Reconfigure") || s == N_("Quit %1"))
 636                         return qt_(s);
 637                 else
 638                         return QString();
 639         }
 640 };
 641
 642 class GlobalMenuBar : public QMenuBar
 643 {
 644 public:
 645         ///
 646         GlobalMenuBar() : QMenuBar(0) {}
 647
 648         ///
 649         bool event(QEvent * e)
 650         {
 651                 if (e->type() == QEvent::ShortcutOverride) {
 652                         //          && activeWindow() == 0) {
 653                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 654                         KeySymbol sym;
 655                         setKeySymbol(&sym, ke);
 656                         guiApp->processKeySym(sym, q_key_state(ke->modifiers()));
 657                         e->accept();
 658                         return true;
 659                 }
 660                 return false;
 661         }
 662 };
 663
 664 #ifdef Q_WS_MACX
 665 // QMacPasteboardMimeGraphics can only be compiled on Mac.
 666
 667 class QMacPasteboardMimeGraphics : public QMacPasteboardMime
 668 {
 669 public:
 670         QMacPasteboardMimeGraphics()
 671                 : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL)
 672         {}
 673
 674         QString convertorName() { return "Graphics"; }
 675
 676         QString flavorFor(QString const & mime)
 677         {
 678                 LYXERR(Debug::ACTION, "flavorFor " << mime);
 679                 if (mime == pdfMimeType())
 680                         return QLatin1String("com.adobe.pdf");
 681                 return QString();
 682         }
 683
 684         QString mimeFor(QString flav)
 685         {
 686                 LYXERR(Debug::ACTION, "mimeFor " << flav);
 687                 if (flav == QLatin1String("com.adobe.pdf"))
 688                         return pdfMimeType();
 689                 return QString();
 690         }
 691
 692         bool canConvert(QString const & mime, QString flav)
 693         {
 694                 return mimeFor(flav) == mime;
 695         }
 696
 697         QVariant convertToMime(QString const & /*mime*/, QList<QByteArray> data,
 698                 QString /*flav*/)
 699         {
 700                 if(data.count() > 1)
 701                         qWarning("QMacPasteboardMimeGraphics: Cannot handle multiple member data");
 702                 return data.first();
 703         }
 704
 705         QList<QByteArray> convertFromMime(QString const & /*mime*/,
 706                 QVariant data, QString /*flav*/)
 707         {
 708                 QList<QByteArray> ret;
 709                 ret.append(data.toByteArray());
 710                 return ret;
 711         }
 712 };
 713 #endif
 714
 715 ///////////////////////////////////////////////////////////////
 716 //
 717 // You can find more platform specific stuff at the end of this file...
 718 //
 719 ///////////////////////////////////////////////////////////////
 720
 721 ////////////////////////////////////////////////////////////////////////
 722 // Windows specific stuff goes here...
 723
 724 #ifdef Q_WS_WIN
 725 // QWindowsMimeMetafile can only be compiled on Windows.
 726
 727 static FORMATETC cfFromMime(QString const & mimetype)
 728 {
 729         FORMATETC formatetc;
 730         if (mimetype == emfMimeType()) {
 731                 formatetc.cfFormat = CF_ENHMETAFILE;
 732                 formatetc.tymed = TYMED_ENHMF;
 733         } else if (mimetype == wmfMimeType()) {
 734                 formatetc.cfFormat = CF_METAFILEPICT;
 735                 formatetc.tymed = TYMED_MFPICT;
 736         }
 737         formatetc.ptd = 0;
 738         formatetc.dwAspect = DVASPECT_CONTENT;
 739         formatetc.lindex = -1;
 740         return formatetc;
 741 }
 742
 743
 744 class QWindowsMimeMetafile : public QWindowsMime {
 745 public:
 746         QWindowsMimeMetafile() {}
 747
 748         bool canConvertFromMime(FORMATETC const & formatetc,
 749                 QMimeData const * mimedata) const
 750         {
 751                 return false;
 752         }
 753
 754         bool canConvertToMime(QString const & mimetype,
 755                 IDataObject * pDataObj) const
 756         {
 757                 if (mimetype != emfMimeType() && mimetype != wmfMimeType())
 758                         return false;
 759                 FORMATETC formatetc = cfFromMime(mimetype);
 760                 return pDataObj->QueryGetData(&formatetc) == S_OK;
 761         }
 762
 763         bool convertFromMime(FORMATETC const & formatetc,
 764                 const QMimeData * mimedata, STGMEDIUM * pmedium) const
 765         {
 766                 return false;
 767         }
 768
 769         QVariant convertToMime(QString const & mimetype, IDataObject * pDataObj,
 770                 QVariant::Type preferredType) const
 771         {
 772                 QByteArray data;
 773                 if (!canConvertToMime(mimetype, pDataObj))
 774                         return data;
 775
 776                 FORMATETC formatetc = cfFromMime(mimetype);
 777                 STGMEDIUM s;
 778                 if (pDataObj->GetData(&formatetc, &s) != S_OK)
 779                         return data;
 780
 781                 int dataSize;
 782                 if (s.tymed == TYMED_ENHMF) {
 783                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0);
 784                         data.resize(dataSize);
 785                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize,
 786                                 (LPBYTE)data.data());
 787                 } else if (s.tymed == TYMED_MFPICT) {
 788                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0);
 789                         data.resize(dataSize);
 790                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize,
 791                                 (LPBYTE)data.data());
 792                 }
 793                 data.detach();
 794                 ReleaseStgMedium(&s);
 795
 796                 return data;
 797         }
 798
 799
 800         QVector<FORMATETC> formatsForMime(QString const & mimetype,
 801                 QMimeData const * mimedata) const
 802         {
 803                 QVector<FORMATETC> formats;
 804                 if (mimetype == emfMimeType() || mimetype == wmfMimeType())
 805                         formats += cfFromMime(mimetype);
 806                 return formats;
 807         }
 808
 809         QString mimeForFormat(FORMATETC const & formatetc) const
 810         {
 811                 switch (formatetc.cfFormat) {
 812                 case CF_ENHMETAFILE:
 813                         return emfMimeType();
 814                 case CF_METAFILEPICT:
 815                         return wmfMimeType();
 816                 }
 817                 return QString();
 818         }
 819 };
 820
 821 #endif // Q_WS_WIN
 822
 823
 824 /// Allows to check whether ESC was pressed during a long operation
 825 class KeyChecker : public QObject {
 826 private:
 827         bool pressed_;
 828         bool started_;
 829 public:
 830         KeyChecker() : pressed_(false), started_(false) {}
 831
 832         void start() {
 833                 QCoreApplication::instance()->installEventFilter(this);
 834                 pressed_ = false;
 835                 started_ = true;
 836         }
 837         void stop() {
 838                 QCoreApplication::instance()->removeEventFilter(this);
 839                 started_ = false;
 840         }
 841         bool pressed() {
 842                 QCoreApplication::processEvents();
 843                 return pressed_;
 844         }
 845         bool started() const {
 846                 return started_;
 847         }
 848         bool eventFilter(QObject *obj, QEvent *event) {
 849                 LYXERR(Debug::ACTION, "Event Type: " << event->type());
 850                 switch (event->type()) {
 851                 case QEvent::Show:
 852                 case QEvent::Hide:
 853                 case QEvent::Resize:
 854                         return QObject::eventFilter(obj, event);
 855                 default:
 856                         QKeyEvent *keyEvent = dynamic_cast<QKeyEvent*>(event);
 857                         if (keyEvent && keyEvent->key() == Qt::Key_Escape)
 858                                 pressed_ = true;
 859                         return true;
 860                 }
 861         }
 862 };
 863
 864
 865 ////////////////////////////////////////////////////////////////////////
 866 // GuiApplication::Private definition and implementation.
 867 ////////////////////////////////////////////////////////////////////////
 868
 869 struct GuiApplication::Private
 870 {
 871         Private(): language_model_(0), meta_fake_bit(NoModifier),
 872                 global_menubar_(0)
 873         {
 874         #ifdef Q_WS_WIN
 875                 /// WMF Mime handler for Windows clipboard.
 876                 wmf_mime_ = new QWindowsMimeMetafile;
 877         #endif
 878                 initKeySequences(&theTopLevelKeymap());
 879         }
 880
 881         void initKeySequences(KeyMap * kb)
 882         {
 883                 keyseq = KeySequence(kb, kb);
 884                 cancel_meta_seq = KeySequence(kb, kb);
 885         }
 886
 887         ///
 888         QSortFilterProxyModel * language_model_;
 889         ///
 890         GuiClipboard clipboard_;
 891         ///
 892         GuiSelection selection_;
 893         ///
 894         FontLoader font_loader_;
 895         ///
 896         ColorCache color_cache_;
 897         ///
 898         QTranslator qt_trans_;
 899         ///
 900         QHash<int, SocketNotifier *> socket_notifiers_;
 901         ///
 902         Menus menus_;
 903         ///
 904         /// The global instance
 905         Toolbars toolbars_;
 906
 907         /// this timer is used for any regular events one wants to
 908         /// perform. at present it is used to check if forked processes
 909         /// are done.
 910         QTimer general_timer_;
 911
 912         /// delayed FuncRequests
 913         std::queue<FuncRequest> func_request_queue_;
 914
 915         ///
 916         KeySequence keyseq;
 917         ///
 918         KeySequence cancel_meta_seq;
 919         ///
 920         KeyModifier meta_fake_bit;
 921
 922         /// Multiple views container.
 923         /**
 924         * Warning: This must not be a smart pointer as the destruction of the
 925         * object is handled by Qt when the view is closed
 926         * \sa Qt::WA_DeleteOnClose attribute.
 927         */
 928         QHash<int, GuiView *> views_;
 929
 930         /// Only used on mac.
 931         GlobalMenuBar * global_menubar_;
 932
 933 #ifdef Q_WS_MACX
 934         /// Linkback mime handler for MacOSX.
 935         QMacPasteboardMimeGraphics mac_pasteboard_mime_;
 936 #endif
 937
 938 #ifdef Q_WS_WIN
 939         /// WMF Mime handler for Windows clipboard.
 940         QWindowsMimeMetafile * wmf_mime_;
 941 #endif
 942
 943         /// Allows to check whether ESC was pressed during a long operation
 944         KeyChecker key_checker_;
 945 };
 946
 947
 948 GuiApplication * guiApp;
 949
 950 GuiApplication::~GuiApplication()
 951 {
 952 #ifdef Q_WS_MACX
 953         closeAllLinkBackLinks();
 954 #endif
 955         delete d;
 956 }
 957
 958
 959 GuiApplication::GuiApplication(int & argc, char ** argv)
 960         : QApplication(argc, argv), current_view_(0),
 961           d(new GuiApplication::Private)
 962 {
 963         QString app_name = "LyX";
 964         QCoreApplication::setOrganizationName(app_name);
 965         QCoreApplication::setOrganizationDomain("lyx.org");
 966         QCoreApplication::setApplicationName(lyx_package);
 967
 968         qsrand(QDateTime::currentDateTime().toTime_t());
 969
 970         // Install translator for GUI elements.
 971         installTranslator(&d->qt_trans_);
 972
 973         // FIXME: quitOnLastWindowClosed is true by default. We should have a
 974         // lyxrc setting for this in order to let the application stay resident.
 975         // But then we need some kind of dock icon, at least on Windows.
 976         /*
 977         if (lyxrc.quit_on_last_window_closed)
 978                 setQuitOnLastWindowClosed(false);
 979         */
 980 #ifdef Q_WS_MACX
 981         // FIXME: Do we need a lyxrc setting for this on Mac? This behaviour
 982         // seems to be the default case for applications like LyX.
 983         setQuitOnLastWindowClosed(false);
 984         // This allows to translate the strings that appear in the LyX menu.
 985         /// A translator suitable for the entries in the LyX menu.
 986         /// Only needed with Qt/Mac.
 987         installTranslator(new MenuTranslator(this));
 988         ///
 989     setupApplescript();
 990 #endif
 991
 992 #ifdef Q_WS_X11
 993         // doubleClickInterval() is 400 ms on X11 which is just too long.
 994         // On Windows and Mac OS X, the operating system's value is used.
 995         // On Microsoft Windows, calling this function sets the double
 996         // click interval for all applications. So we don't!
 997         QApplication::setDoubleClickInterval(300);
 998 #endif
 999
1000         connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
1001
1002         // needs to be done before reading lyxrc
1003         QWidget w;
1004         lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
1005
1006         guiApp = this;
1007
1008         // Set the cache to 5120 kilobytes which corresponds to screen size of
1009         // 1280 by 1024 pixels with a color depth of 32 bits.
1010         QPixmapCache::setCacheLimit(5120);
1011
1012         // Initialize RC Fonts
1013         if (lyxrc.roman_font_name.empty())
1014                 lyxrc.roman_font_name = fromqstr(romanFontName());
1015
1016         if (lyxrc.sans_font_name.empty())
1017                 lyxrc.sans_font_name = fromqstr(sansFontName());
1018
1019         if (lyxrc.typewriter_font_name.empty())
1020                 lyxrc.typewriter_font_name = fromqstr(typewriterFontName());
1021
1022         d->general_timer_.setInterval(500);
1023         connect(&d->general_timer_, SIGNAL(timeout()),
1024                 this, SLOT(handleRegularEvents()));
1025         d->general_timer_.start();
1026
1027         // maxThreadCount() defaults in general to 2 on single or dual-processor.
1028         // This is clearly not enough in a time where we use threads for
1029         // document preview and/or export. 20 should be OK.
1030         QThreadPool::globalInstance()->setMaxThreadCount(20);
1031 }
1032
1033
1034 GuiApplication * theGuiApp()
1035 {
1036         return dynamic_cast<GuiApplication *>(theApp());
1037 }
1038
1039
1040 void GuiApplication::clearSession()
1041 {
1042         QSettings settings;
1043         settings.clear();
1044 }
1045
1046
1047 docstring Application::iconName(FuncRequest const & f, bool unknown)
1048 {
1049         return qstring_to_ucs4(lyx::frontend::iconName(f, unknown));
1050 }
1051
1052
1053 FuncStatus GuiApplication::getStatus(FuncRequest const & cmd) const
1054 {
1055         FuncStatus status;
1056
1057         BufferView * bv = 0;
1058         BufferView * doc_bv = 0;
1059
1060         if (cmd.action() == LFUN_NOACTION) {
1061                 status.message(from_utf8(N_("Nothing to do")));
1062                 status.setEnabled(false);
1063         }
1064
1065         else if (cmd.action() == LFUN_UNKNOWN_ACTION) {
1066                 status.setUnknown(true);
1067                 status.message(from_utf8(N_("Unknown action")));
1068                 status.setEnabled(false);
1069         }
1070
1071         // Does the GuiApplication know something?
1072         else if (getStatus(cmd, status)) { }
1073
1074         // If we do not have a GuiView, then other functions are disabled
1075         else if (!current_view_)
1076                 status.setEnabled(false);
1077
1078         // Does the GuiView know something?
1079         else if (current_view_->getStatus(cmd, status)) { }
1080
1081         // In LyX/Mac, when a dialog is open, the menus of the
1082         // application can still be accessed without giving focus to
1083         // the main window. In this case, we want to disable the menu
1084         // entries that are buffer or view-related.
1085         //FIXME: Abdel (09/02/10) This has very bad effect on Linux, don't know why...
1086         /*
1087         else if (cmd.origin() == FuncRequest::MENU && !current_view_->hasFocus())
1088                 status.setEnabled(false);
1089         */
1090
1091         // If we do not have a BufferView, then other functions are disabled
1092         else if (!(bv = current_view_->currentBufferView()))
1093                 status.setEnabled(false);
1094
1095         // Does the current BufferView know something?
1096         else if (bv->getStatus(cmd, status)) { }
1097
1098         // Does the current Buffer know something?
1099         else if (bv->buffer().getStatus(cmd, status)) { }
1100
1101         // If we do not have a document BufferView, different from the
1102         // current BufferView, then other functions are disabled
1103         else if (!(doc_bv = current_view_->documentBufferView()) || doc_bv == bv)
1104                 status.setEnabled(false);
1105
1106         // Does the document Buffer know something?
1107         else if (doc_bv->buffer().getStatus(cmd, status)) { }
1108
1109         else {
1110                 LYXERR(Debug::ACTION, "LFUN not handled in getStatus(): " << cmd);
1111                 status.message(from_utf8(N_("Command not handled")));
1112                 status.setEnabled(false);
1113         }
1114
1115         // the default error message if we disable the command
1116         if (!status.enabled() && status.message().empty())
1117                 status.message(from_utf8(N_("Command disabled")));
1118
1119         return status;
1120 }
1121
1122
1123 bool GuiApplication::getStatus(FuncRequest const & cmd, FuncStatus & flag) const
1124 {
1125         // I would really like to avoid having this switch and rather try to
1126         // encode this in the function itself.
1127         // -- And I'd rather let an inset decide which LFUNs it is willing
1128         // to handle (Andre')
1129         bool enable = true;
1130         switch (cmd.action()) {
1131
1132         // This could be used for the no-GUI version. The GUI version is handled in
1133         // GuiView::getStatus(). See above.
1134         /*
1135         case LFUN_BUFFER_WRITE:
1136         case LFUN_BUFFER_WRITE_AS: {
1137                 Buffer * b = theBufferList().getBuffer(FileName(cmd.getArg(0)));
1138                 enable = b && (b->isUnnamed() || !b->isClean());
1139                 break;
1140         }
1141         */
1142
1143         case LFUN_BOOKMARK_GOTO: {
1144                 const unsigned int num = convert<unsigned int>(to_utf8(cmd.argument()));
1145                 enable = theSession().bookmarks().isValid(num);
1146                 break;
1147         }
1148
1149         case LFUN_BOOKMARK_CLEAR:
1150                 enable = theSession().bookmarks().hasValid();
1151                 break;
1152
1153         // this one is difficult to get right. As a half-baked
1154         // solution, we consider only the first action of the sequence
1155         case LFUN_COMMAND_SEQUENCE: {
1156                 // argument contains ';'-terminated commands
1157                 string const firstcmd = token(to_utf8(cmd.argument()), ';', 0);
1158                 FuncRequest func(lyxaction.lookupFunc(firstcmd));
1159                 func.setOrigin(cmd.origin());
1160                 flag = getStatus(func);
1161                 break;
1162         }
1163
1164         // we want to check if at least one of these is enabled
1165         case LFUN_COMMAND_ALTERNATIVES: {
1166                 // argument contains ';'-terminated commands
1167                 string arg = to_utf8(cmd.argument());
1168                 while (!arg.empty()) {
1169                         string first;
1170                         arg = split(arg, first, ';');
1171                         FuncRequest func(lyxaction.lookupFunc(first));
1172                         func.setOrigin(cmd.origin());
1173                         flag = getStatus(func);
1174                         // if this one is enabled, the whole thing is
1175                         if (flag.enabled())
1176                                 break;
1177                 }
1178                 break;
1179         }
1180
1181         case LFUN_CALL: {
1182                 FuncRequest func;
1183                 string name = to_utf8(cmd.argument());
1184                 if (theTopLevelCmdDef().lock(name, func)) {
1185                         func.setOrigin(cmd.origin());
1186                         flag = getStatus(func);
1187                         theTopLevelCmdDef().release(name);
1188                 } else {
1189                         // catch recursion or unknown command
1190                         // definition. all operations until the
1191                         // recursion or unknown command definition
1192                         // occurs are performed, so set the state to
1193                         // enabled
1194                         enable = true;
1195                 }
1196                 break;
1197         }
1198
1199         case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
1200         case LFUN_REPEAT:
1201         case LFUN_PREFERENCES_SAVE:
1202         case LFUN_BUFFER_SAVE_AS_DEFAULT:
1203         case LFUN_DEBUG_LEVEL_SET:
1204                 // these are handled in our dispatch()
1205                 break;
1206
1207         case LFUN_WINDOW_CLOSE:
1208                 enable = d->views_.size() > 0;
1209                 break;
1210
1211         case LFUN_BUFFER_NEW:
1212         case LFUN_BUFFER_NEW_TEMPLATE:
1213         case LFUN_FILE_OPEN:
1214         case LFUN_HELP_OPEN:
1215         case LFUN_SCREEN_FONT_UPDATE:
1216         case LFUN_SET_COLOR:
1217         case LFUN_WINDOW_NEW:
1218         case LFUN_LYX_QUIT:
1219         case LFUN_LYXRC_APPLY:
1220         case LFUN_COMMAND_PREFIX:
1221         case LFUN_CANCEL:
1222         case LFUN_META_PREFIX:
1223         case LFUN_RECONFIGURE:
1224         case LFUN_SERVER_GET_FILENAME:
1225         case LFUN_SERVER_NOTIFY:
1226                 enable = true;
1227                 break;
1228
1229         case LFUN_BUFFER_FORALL: {
1230                 if (theBufferList().empty()) {
1231                         flag.message(from_utf8(N_("Command not allowed without a buffer open")));
1232                         flag.setEnabled(false);
1233                         break;
1234                 }
1235
1236                 FuncRequest const cmdToPass = lyxaction.lookupFunc(cmd.getLongArg(0));
1237                 if (cmdToPass.action() == LFUN_UNKNOWN_ACTION) {
1238                         flag.message(from_utf8(N_("the <LFUN-COMMAND> argument of buffer-forall is not valid")));
1239                         flag.setEnabled(false);
1240                 }
1241                 break;
1242         }
1243
1244
1245         default:
1246                 return false;
1247         }
1248
1249         if (!enable)
1250                 flag.setEnabled(false);
1251         return true;
1252 }
1253
1254 /// make a post-dispatch status message
1255 static docstring makeDispatchMessage(docstring const & msg,
1256                                      FuncRequest const & cmd)
1257 {
1258         const bool verbose = (cmd.origin() == FuncRequest::MENU
1259                               || cmd.origin() == FuncRequest::TOOLBAR
1260                               || cmd.origin() == FuncRequest::COMMANDBUFFER);
1261
1262         if (cmd.action() == LFUN_SELF_INSERT || !verbose) {
1263                 LYXERR(Debug::ACTION, "dispatch msg is " << msg);
1264                 return msg;
1265         }
1266
1267         docstring dispatch_msg = msg;
1268         if (!dispatch_msg.empty())
1269                 dispatch_msg += ' ';
1270
1271         docstring comname = from_utf8(lyxaction.getActionName(cmd.action()));
1272
1273         bool argsadded = false;
1274
1275         if (!cmd.argument().empty()) {
1276                 if (cmd.action() != LFUN_UNKNOWN_ACTION) {
1277                         comname += ' ' + cmd.argument();
1278                         argsadded = true;
1279                 }
1280         }
1281         docstring const shortcuts = theTopLevelKeymap().
1282                 printBindings(cmd, KeySequence::ForGui);
1283
1284         if (!shortcuts.empty())
1285                 comname += ": " + shortcuts;
1286         else if (!argsadded && !cmd.argument().empty())
1287                 comname += ' ' + cmd.argument();
1288
1289         if (!comname.empty()) {
1290                 comname = rtrim(comname);
1291                 dispatch_msg += '(' + rtrim(comname) + ')';
1292         }
1293         LYXERR(Debug::ACTION, "verbose dispatch msg " << to_utf8(dispatch_msg));
1294         return dispatch_msg;
1295 }
1296
1297
1298 void GuiApplication::dispatch(FuncRequest const & cmd)
1299 {
1300         Buffer * buffer = 0;
1301         if (current_view_ && current_view_->currentBufferView()) {
1302                 current_view_->currentBufferView()->cursor().saveBeforeDispatchPosXY();
1303                 buffer = &current_view_->currentBufferView()->buffer();
1304                 if (buffer)
1305                         buffer->undo().beginUndoGroup();
1306         }
1307
1308         DispatchResult dr;
1309         // redraw the screen at the end (first of the two drawing steps).
1310         // This is done unless explicitly requested otherwise
1311         dr.screenUpdate(Update::FitCursor);
1312         dispatch(cmd, dr);
1313         updateCurrentView(cmd, dr);
1314
1315         // the buffer may have been closed by one action
1316         if (theBufferList().isLoaded(buffer))
1317                 buffer->undo().endUndoGroup();
1318 }
1319
1320
1321 void GuiApplication::updateCurrentView(FuncRequest const & cmd, DispatchResult & dr)
1322 {
1323         if (!current_view_)
1324                 return;
1325
1326         BufferView * bv = current_view_->currentBufferView();
1327         if (bv) {
1328                 if (dr.needBufferUpdate()) {
1329                         bv->cursor().clearBufferUpdate();
1330                         bv->buffer().updateBuffer();
1331                 }
1332                 // BufferView::update() updates the ViewMetricsInfo and
1333                 // also initializes the position cache for all insets in
1334                 // (at least partially) visible top-level paragraphs.
1335                 // We will redraw the screen only if needed.
1336                 bv->processUpdateFlags(dr.screenUpdate());
1337
1338                 // Do we have a selection?
1339                 theSelection().haveSelection(bv->cursor().selection());
1340
1341                 // update gui
1342                 current_view_->restartCursor();
1343         }
1344         if (dr.needMessageUpdate()) {
1345                 // Some messages may already be translated, so we cannot use _()
1346                 current_view_->message(makeDispatchMessage(
1347                                 translateIfPossible(dr.message()), cmd));
1348         }
1349 }
1350
1351
1352 void GuiApplication::gotoBookmark(unsigned int idx, bool openFile,
1353         bool switchToBuffer)
1354 {
1355         if (!theSession().bookmarks().isValid(idx))
1356                 return;
1357         BookmarksSection::Bookmark const & bm =
1358                 theSession().bookmarks().bookmark(idx);
1359         LASSERT(!bm.filename.empty(), return);
1360         string const file = bm.filename.absFileName();
1361         // if the file is not opened, open it.
1362         if (!theBufferList().exists(bm.filename)) {
1363                 if (openFile)
1364                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
1365                 else
1366                         return;
1367         }
1368         // open may fail, so we need to test it again
1369         if (!theBufferList().exists(bm.filename))
1370                 return;
1371
1372         // bm can be changed when saving
1373         BookmarksSection::Bookmark tmp = bm;
1374
1375         // Special case idx == 0 used for back-from-back jump navigation
1376         if (idx == 0)
1377                 dispatch(FuncRequest(LFUN_BOOKMARK_SAVE, "0"));
1378
1379         // if the current buffer is not that one, switch to it.
1380         BufferView * doc_bv = current_view_ ?
1381                 current_view_->documentBufferView() : 0;
1382         if (!doc_bv || doc_bv->buffer().fileName() != tmp.filename) {
1383                 if (switchToBuffer) {
1384                         dispatch(FuncRequest(LFUN_BUFFER_SWITCH, file));
1385                         if (!current_view_)
1386                                 return;
1387                         doc_bv = current_view_->documentBufferView();
1388                 } else
1389                         return;
1390         }
1391
1392         // moveToPosition try paragraph id first and then paragraph (pit, pos).
1393         if (!doc_bv->moveToPosition(
1394                         tmp.bottom_pit, tmp.bottom_pos, tmp.top_id, tmp.top_pos))
1395                 return;
1396
1397         // bm changed
1398         if (idx == 0)
1399                 return;
1400
1401         // Cursor jump succeeded!
1402         Cursor const & cur = doc_bv->cursor();
1403         pit_type new_pit = cur.pit();
1404         pos_type new_pos = cur.pos();
1405         int new_id = cur.paragraph().id();
1406
1407         // if bottom_pit, bottom_pos or top_id has been changed, update bookmark
1408         // see http://www.lyx.org/trac/ticket/3092
1409         if (bm.bottom_pit != new_pit || bm.bottom_pos != new_pos
1410                 || bm.top_id != new_id) {
1411                 const_cast<BookmarksSection::Bookmark &>(bm).updatePos(
1412                         new_pit, new_pos, new_id);
1413         }
1414 }
1415
1416 // This function runs "configure" and then rereads lyx.defaults to
1417 // reconfigure the automatic settings.
1418 void GuiApplication::reconfigure(string const & option)
1419 {
1420         // emit message signal.
1421         if (current_view_)
1422                 current_view_->message(_("Running configure..."));
1423
1424         // Run configure in user lyx directory
1425         PathChanger p(package().user_support());
1426         string configure_command = package().configure_command();
1427         configure_command += option;
1428         Systemcall one;
1429         int const ret = one.startscript(Systemcall::Wait, configure_command);
1430         p.pop();
1431         // emit message signal.
1432         if (current_view_)
1433                 current_view_->message(_("Reloading configuration..."));
1434         lyxrc.read(libFileSearch(QString(), "lyxrc.defaults"), false);
1435         // Re-read packages.lst
1436         LaTeXPackages::getAvailable();
1437
1438         if (ret)
1439                 Alert::information(_("System reconfiguration failed"),
1440                            _("The system reconfiguration has failed.\n"
1441                                   "Default textclass is used but LyX may\n"
1442                                   "not be able to work properly.\n"
1443                                   "Please reconfigure again if needed."));
1444         else
1445                 Alert::information(_("System reconfigured"),
1446                            _("The system has been reconfigured.\n"
1447                              "You need to restart LyX to make use of any\n"
1448                              "updated document class specifications."));
1449 }
1450
1451 void GuiApplication::validateCurrentView()
1452 {
1453         if (!d->views_.empty() && !current_view_) {
1454                 // currently at least one view exists but no view has the focus.
1455                 // choose the last view to make it current.
1456                 // a view without any open document is preferred.
1457                 GuiView * candidate = 0;
1458                 QHash<int, GuiView *>::const_iterator it = d->views_.begin();
1459                 QHash<int, GuiView *>::const_iterator end = d->views_.end();
1460                 for (; it != end; ++it) {
1461                         candidate = *it;
1462                         if (!candidate->documentBufferView())
1463                                 break;
1464                 }
1465                 setCurrentView(candidate);
1466         }
1467 }
1468
1469 void GuiApplication::dispatch(FuncRequest const & cmd, DispatchResult & dr)
1470 {
1471         string const argument = to_utf8(cmd.argument());
1472         FuncCode const action = cmd.action();
1473
1474         LYXERR(Debug::ACTION, "cmd: " << cmd);
1475
1476         // we have not done anything wrong yet.
1477         dr.setError(false);
1478
1479         FuncStatus const flag = getStatus(cmd);
1480         if (!flag.enabled()) {
1481                 // We cannot use this function here
1482                 LYXERR(Debug::ACTION, "action "
1483                        << lyxaction.getActionName(action)
1484                        << " [" << action << "] is disabled at this location");
1485                 dr.setMessage(flag.message());
1486                 dr.setError(true);
1487                 dr.dispatched(false);
1488                 dr.screenUpdate(Update::None);
1489                 dr.clearBufferUpdate();
1490                 return;
1491         };
1492
1493         if (cmd.origin() == FuncRequest::LYXSERVER) {
1494                 if (current_view_ && current_view_->currentBufferView())
1495                         current_view_->currentBufferView()->cursor().saveBeforeDispatchPosXY();
1496                 // we will also need to redraw the screen at the end
1497                 dr.screenUpdate(Update::FitCursor);
1498         }
1499
1500         // Assumes that the action will be dispatched.
1501         dr.dispatched(true);
1502
1503         switch (cmd.action()) {
1504
1505         case LFUN_WINDOW_NEW:
1506                 createView(toqstr(cmd.argument()));
1507                 break;
1508
1509         case LFUN_WINDOW_CLOSE:
1510                 // update bookmark pit of the current buffer before window close
1511                 for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
1512                         gotoBookmark(i+1, false, false);
1513                 // clear the last opened list, because
1514                 // maybe this will end the session
1515                 theSession().lastOpened().clear();
1516                 // check for valid current_view_
1517                 validateCurrentView();
1518                 if (current_view_)
1519                         current_view_->closeScheduled();
1520                 break;
1521
1522         case LFUN_LYX_QUIT:
1523                 // quitting is triggered by the gui code
1524                 // (leaving the event loop).
1525                 if (current_view_)
1526                         current_view_->message(from_utf8(N_("Exiting.")));
1527                 if (closeAllViews())
1528                         quit();
1529                 break;
1530
1531         case LFUN_SCREEN_FONT_UPDATE: {
1532                 // handle the screen font changes.
1533                 d->font_loader_.update();
1534                 // Backup current_view_
1535                 GuiView * view = current_view_;
1536                 // Set current_view_ to zero to forbid GuiWorkArea::redraw()
1537                 // to skip the refresh.
1538                 current_view_ = 0;
1539                 theBufferList().changed(false);
1540                 // Restore current_view_
1541                 current_view_ = view;
1542                 break;
1543         }
1544
1545         case LFUN_BUFFER_NEW:
1546                 validateCurrentView();
1547                 if (d->views_.empty()
1548                    || (!lyxrc.open_buffers_in_tabs && current_view_->documentBufferView() != 0)) {
1549                         createView(QString(), false); // keep hidden
1550                         current_view_->newDocument(to_utf8(cmd.argument()), false);
1551                         current_view_->show();
1552                         setActiveWindow(current_view_);
1553                 } else {
1554                         current_view_->newDocument(to_utf8(cmd.argument()), false);
1555                 }
1556                 break;
1557
1558         case LFUN_BUFFER_NEW_TEMPLATE:
1559                 validateCurrentView();
1560                 if (d->views_.empty()
1561                    || (!lyxrc.open_buffers_in_tabs && current_view_->documentBufferView() != 0)) {
1562                         createView();
1563                         current_view_->newDocument(to_utf8(cmd.argument()), true);
1564                         if (!current_view_->documentBufferView())
1565                                 current_view_->close();
1566                 } else {
1567                         current_view_->newDocument(to_utf8(cmd.argument()), true);
1568                 }
1569                 break;
1570
1571         case LFUN_FILE_OPEN: {
1572                 validateCurrentView();
1573                 // FIXME: create a new method shared with LFUN_HELP_OPEN.
1574                 string const fname = to_utf8(cmd.argument());
1575                 if (!fname.empty() && !FileName::isAbsolute(fname)) {
1576                         dr.setError(true);
1577                         dr.setMessage(_("Absolute filename expected."));
1578                         break;
1579                 }
1580                 bool const is_open = FileName::isAbsolute(fname)
1581                         && theBufferList().getBuffer(FileName(fname));
1582                 if (d->views_.empty()
1583                     || (!lyxrc.open_buffers_in_tabs
1584                         && current_view_->documentBufferView() != 0
1585                         && !is_open)) {
1586                         // We want the ui session to be saved per document and not per
1587                         // window number. The filename crc is a good enough identifier.
1588                         boost::crc_32_type crc;
1589                         crc = for_each(fname.begin(), fname.end(), crc);
1590                         createView(crc.checksum());
1591                         current_view_->openDocument(fname);
1592                         if (current_view_ && !current_view_->documentBufferView())
1593                                 current_view_->close();
1594                 } else
1595                         current_view_->openDocument(fname);
1596                 break;
1597         }
1598
1599         case LFUN_HELP_OPEN: {
1600                 // FIXME: create a new method shared with LFUN_FILE_OPEN.
1601                 if (current_view_ == 0)
1602                         createView();
1603                 string const arg = to_utf8(cmd.argument());
1604                 if (arg.empty()) {
1605                         current_view_->message(_("Missing argument"));
1606                         break;
1607                 }
1608                 FileName fname = i18nLibFileSearch("doc", arg, "lyx");
1609                 if (fname.empty())
1610                         fname = i18nLibFileSearch("examples", arg, "lyx");
1611
1612                 if (fname.empty()) {
1613                         lyxerr << "LyX: unable to find documentation file `"
1614                                << arg << "'. Bad installation?" << endl;
1615                         break;
1616                 }
1617                 current_view_->message(bformat(_("Opening help file %1$s..."),
1618                                                makeDisplayPath(fname.absFileName())));
1619                 Buffer * buf = current_view_->loadDocument(fname, false);
1620
1621 #ifndef DEVEL_VERSION
1622                 if (buf)
1623                         buf->setReadonly(true);
1624 #else
1625                 (void) buf;
1626 #endif
1627                 break;
1628         }
1629
1630         case LFUN_SET_COLOR: {
1631                 string lyx_name;
1632                 string const x11_name = split(to_utf8(cmd.argument()), lyx_name, ' ');
1633                 if (lyx_name.empty() || x11_name.empty()) {
1634                         if (current_view_)
1635                                 current_view_->message(
1636                                         _("Syntax: set-color <lyx_name> <x11_name>"));
1637                         break;
1638                 }
1639
1640 #if 0
1641                 // FIXME: The graphics cache no longer has a changeDisplay method.
1642                 string const graphicsbg = lcolor.getLyXName(Color_graphicsbg);
1643                 bool const graphicsbg_changed =
1644                                 lyx_name == graphicsbg && x11_name != graphicsbg;
1645                 if (graphicsbg_changed)
1646                         graphics::GCache::get().changeDisplay(true);
1647 #endif
1648
1649                 if (!lcolor.setColor(lyx_name, x11_name)) {
1650                         if (current_view_)
1651                                 current_view_->message(
1652                                         bformat(_("Set-color \"%1$s\" failed "
1653                                         "- color is undefined or "
1654                                         "may not be redefined"),
1655                                         from_utf8(lyx_name)));
1656                         break;
1657                 }
1658                 // Make sure we don't keep old colors in cache.
1659                 d->color_cache_.clear();
1660                 break;
1661         }
1662
1663         case LFUN_LYXRC_APPLY: {
1664                 // reset active key sequences, since the bindings
1665                 // are updated (bug 6064)
1666                 d->keyseq.reset();
1667                 LyXRC const lyxrc_orig = lyxrc;
1668
1669                 istringstream ss(to_utf8(cmd.argument()));
1670                 bool const success = lyxrc.read(ss);
1671
1672                 if (!success) {
1673                         lyxerr << "Warning in LFUN_LYXRC_APPLY!\n"
1674                                         << "Unable to read lyxrc data"
1675                                         << endl;
1676                         break;
1677                 }
1678
1679                 actOnUpdatedPrefs(lyxrc_orig, lyxrc);
1680
1681                 // If the request comes from the minibuffer, then we can't reset
1682                 // the GUI, since that would destory the minibuffer itself and
1683                 // cause a crash, since we are currently in one of the methods of
1684                 // GuiCommandBuffer. See bug #8540.
1685                 if (cmd.origin() != FuncRequest::COMMANDBUFFER)
1686                         resetGui();
1687                 // else
1688                 //   FIXME Unfortunately, that leaves a bug here, since we cannot
1689                 //   reset the GUI in this case. If the changes to lyxrc affected the
1690                 //   UI, then, nothing would happen. This seems fairly unlikely, but
1691                 //   it definitely is a bug.
1692
1693                 break;
1694         }
1695
1696         case LFUN_COMMAND_PREFIX:
1697                 dispatch(FuncRequest(LFUN_MESSAGE, d->keyseq.printOptions(true)));
1698                 break;
1699
1700         case LFUN_CANCEL: {
1701                 d->keyseq.reset();
1702                 d->meta_fake_bit = NoModifier;
1703                 GuiView * gv = currentView();
1704                 if (gv && gv->currentBufferView())
1705                         // cancel any selection
1706                         processFuncRequest(FuncRequest(LFUN_MARK_OFF));
1707                 dr.setMessage(from_ascii(N_("Cancel")));
1708                 break;
1709         }
1710         case LFUN_META_PREFIX:
1711                 d->meta_fake_bit = AltModifier;
1712                 dr.setMessage(d->keyseq.print(KeySequence::ForGui));
1713                 break;
1714
1715         // --- Menus -----------------------------------------------
1716         case LFUN_RECONFIGURE:
1717                 // argument is any additional parameter to the configure.py command
1718                 reconfigure(to_utf8(cmd.argument()));
1719                 break;
1720
1721         // --- lyxserver commands ----------------------------
1722         case LFUN_SERVER_GET_FILENAME: {
1723                 if (current_view_ && current_view_->documentBufferView()) {
1724                         docstring const fname = from_utf8(
1725                                 current_view_->documentBufferView()->buffer().absFileName());
1726                         dr.setMessage(fname);
1727                         LYXERR(Debug::INFO, "FNAME[" << fname << ']');
1728                 } else {
1729                         dr.setMessage(docstring());
1730                         LYXERR(Debug::INFO, "No current file for LFUN_SERVER_GET_FILENAME");
1731                 }
1732                 break;
1733         }
1734
1735         case LFUN_SERVER_NOTIFY: {
1736                 docstring const dispatch_buffer = d->keyseq.print(KeySequence::Portable);
1737                 dr.setMessage(dispatch_buffer);
1738                 theServer().notifyClient(to_utf8(dispatch_buffer));
1739                 break;
1740         }
1741
1742         case LFUN_CURSOR_FOLLOWS_SCROLLBAR_TOGGLE:
1743                 lyxrc.cursor_follows_scrollbar = !lyxrc.cursor_follows_scrollbar;
1744                 break;
1745
1746         case LFUN_REPEAT: {
1747                 // repeat command
1748                 string countstr;
1749                 string rest = split(argument, countstr, ' ');
1750                 istringstream is(countstr);
1751                 int count = 0;
1752                 is >> count;
1753                 //lyxerr << "repeat: count: " << count << " cmd: " << rest << endl;
1754                 for (int i = 0; i < count; ++i)
1755                         dispatch(lyxaction.lookupFunc(rest));
1756                 break;
1757         }
1758
1759         case LFUN_COMMAND_SEQUENCE: {
1760                 // argument contains ';'-terminated commands
1761                 string arg = argument;
1762                 // FIXME: this LFUN should also work without any view.
1763                 Buffer * buffer = (current_view_ && current_view_->documentBufferView())
1764                                   ? &(current_view_->documentBufferView()->buffer()) : 0;
1765                 if (buffer)
1766                         buffer->undo().beginUndoGroup();
1767                 while (!arg.empty()) {
1768                         string first;
1769                         arg = split(arg, first, ';');
1770                         FuncRequest func(lyxaction.lookupFunc(first));
1771                         func.setOrigin(cmd.origin());
1772                         dispatch(func);
1773                 }
1774                 // the buffer may have been closed by one action
1775                 if (theBufferList().isLoaded(buffer))
1776                         buffer->undo().endUndoGroup();
1777                 break;
1778         }
1779
1780         case LFUN_BUFFER_FORALL: {
1781                 FuncRequest const funcToRun = lyxaction.lookupFunc(cmd.getLongArg(0));
1782
1783                 map<Buffer *, GuiView *> views_lVisible;
1784                 map<GuiView *, Buffer *> activeBuffers;
1785
1786                 QList<GuiView *> allViews = d->views_.values();
1787
1788                 // this foreach does not modify any buffer. It just collects info on local visibility of buffers
1789                 // and on which buffer is active in each view.
1790                 Buffer * const last = theBufferList().last();
1791                 foreach (GuiView * view, allViews) {
1792                         // all of the buffers might be locally hidden. That is, there is no active buffer.
1793                         if (!view || !view->currentBufferView() || !&view->currentBufferView()->buffer())
1794                                 activeBuffers[view] = 0;
1795                         else
1796                                 activeBuffers[view] = &view->currentBufferView()->buffer();
1797
1798                         // find out if each is locally visible or locally hidden.
1799                         // we don't use a for loop as the buffer list cycles.
1800                         Buffer * b = theBufferList().first();
1801                         while (true) {
1802                                 bool const locallyVisible = view && view->workArea(*b);
1803                                 if (locallyVisible) {
1804                                         bool const exists_ = (views_lVisible.find(b) != views_lVisible.end());
1805                                         // only need to overwrite/add if we don't already know a buffer is globally
1806                                         // visible or we do know but we would prefer to dispatch LFUN from the
1807                                         // current view because of cursor position issues.
1808                                         if (!exists_ || (exists_ && views_lVisible[b] != current_view_))
1809                                                 views_lVisible[b] = view;
1810                                 }
1811                                 if (b == last)
1812                                         break;
1813                                 b = theBufferList().next(b);
1814                         }
1815                 }
1816
1817                 GuiView * const homeView = currentView();
1818                 Buffer * b = theBufferList().first();
1819                 Buffer * nextBuf = 0;
1820                 int numProcessed = 0;
1821                 while (true) {
1822                         if (b != last)
1823                                 nextBuf = theBufferList().next(b); // get next now bc LFUN might close current.
1824
1825                         bool const visible = (views_lVisible.find(b) != views_lVisible.end());
1826                         if (visible) {
1827                                 // first change to a view where b is locally visible, preferably current_view_.
1828                                 GuiView * const vLv = views_lVisible[b];
1829                                 vLv->setBuffer(b);
1830                                 lyx::dispatch(funcToRun);
1831                                 numProcessed++;
1832                         }
1833                         if (b == last)
1834                                 break;
1835                         b = nextBuf;
1836                 }
1837
1838                 // put things back to how they were (if possible).
1839                 foreach (GuiView * view, allViews) {
1840                         Buffer * originalBuf = activeBuffers[view];
1841                         // there might not have been an active buffer in this view or it might have been closed by the LFUN.
1842                         if (theBufferList().isLoaded(originalBuf))
1843                                 view->setBuffer(originalBuf);
1844                 }
1845                 homeView->setFocus();
1846
1847                 dr.setMessage(bformat(_("Applied \"%1$s\" to %2$d buffer(s)"), from_utf8(cmd.getLongArg(0)), numProcessed));
1848                 break;
1849         }
1850
1851         case LFUN_COMMAND_ALTERNATIVES: {
1852                 // argument contains ';'-terminated commands
1853                 string arg = argument;
1854                 while (!arg.empty()) {
1855                         string first;
1856                         arg = split(arg, first, ';');
1857                         FuncRequest func(lyxaction.lookupFunc(first));
1858                         func.setOrigin(cmd.origin());
1859                         FuncStatus const stat = getStatus(func);
1860                         if (stat.enabled()) {
1861                                 dispatch(func);
1862                                 break;
1863                         }
1864                 }
1865                 break;
1866         }
1867
1868         case LFUN_CALL: {
1869                 FuncRequest func;
1870                 if (theTopLevelCmdDef().lock(argument, func)) {
1871                         func.setOrigin(cmd.origin());
1872                         dispatch(func);
1873                         theTopLevelCmdDef().release(argument);
1874                 } else {
1875                         if (func.action() == LFUN_UNKNOWN_ACTION) {
1876                                 // unknown command definition
1877                                 lyxerr << "Warning: unknown command definition `"
1878                                                 << argument << "'"
1879                                                 << endl;
1880                         } else {
1881                                 // recursion detected
1882                                 lyxerr << "Warning: Recursion in the command definition `"
1883                                                 << argument << "' detected"
1884                                                 << endl;
1885                         }
1886                 }
1887                 break;
1888         }
1889
1890         case LFUN_PREFERENCES_SAVE:
1891                 lyxrc.write(support::makeAbsPath("preferences",
1892                         package().user_support().absFileName()), false);
1893                 break;
1894
1895         case LFUN_BUFFER_SAVE_AS_DEFAULT: {
1896                 string const fname = addName(addPath(package().user_support().absFileName(),
1897                         "templates/"), "defaults.lyx");
1898                 Buffer defaults(fname);
1899
1900                 istringstream ss(argument);
1901                 Lexer lex;
1902                 lex.setStream(ss);
1903                 int const unknown_tokens = defaults.readHeader(lex);
1904
1905                 if (unknown_tokens != 0) {
1906                         lyxerr << "Warning in LFUN_BUFFER_SAVE_AS_DEFAULT!\n"
1907                                << unknown_tokens << " unknown token"
1908                                << (unknown_tokens == 1 ? "" : "s")
1909                                << endl;
1910                 }
1911
1912                 if (defaults.writeFile(FileName(defaults.absFileName())))
1913                         dr.setMessage(bformat(_("Document defaults saved in %1$s"),
1914                                               makeDisplayPath(fname)));
1915                 else {
1916                         dr.setError(true);
1917                         dr.setMessage(from_ascii(N_("Unable to save document defaults")));
1918                 }
1919                 break;
1920         }
1921
1922         case LFUN_BOOKMARK_GOTO:
1923                 // go to bookmark, open unopened file and switch to buffer if necessary
1924                 gotoBookmark(convert<unsigned int>(to_utf8(cmd.argument())), true, true);
1925                 dr.screenUpdate(Update::Force | Update::FitCursor);
1926                 break;
1927
1928         case LFUN_BOOKMARK_CLEAR:
1929                 theSession().bookmarks().clear();
1930                 break;
1931
1932         case LFUN_DEBUG_LEVEL_SET:
1933                 lyxerr.setLevel(Debug::value(to_utf8(cmd.argument())));
1934                 break;
1935
1936         default:
1937                 // The LFUN must be for one of GuiView, BufferView, Buffer or Cursor;
1938                 // let's try that:
1939                 if (current_view_)
1940                         current_view_->dispatch(cmd, dr);
1941                 break;
1942         }
1943
1944         if (cmd.origin() == FuncRequest::LYXSERVER)
1945                 updateCurrentView(cmd, dr);
1946 }
1947
1948
1949 docstring GuiApplication::viewStatusMessage()
1950 {
1951         // When meta-fake key is pressed, show the key sequence so far + "M-".
1952         if (d->meta_fake_bit != NoModifier)
1953                 return d->keyseq.print(KeySequence::ForGui) + "M-";
1954
1955         // Else, when a non-complete key sequence is pressed,
1956         // show the available options.
1957         if (d->keyseq.length() > 0 && !d->keyseq.deleted())
1958                 return d->keyseq.printOptions(true);
1959
1960         return docstring();
1961 }
1962
1963
1964 void GuiApplication::handleKeyFunc(FuncCode action)
1965 {
1966         char_type c = 0;
1967
1968         if (d->keyseq.length())
1969                 c = 0;
1970         GuiView * gv = currentView();
1971         LASSERT(gv && gv->currentBufferView(), return);
1972         BufferView * bv = gv->currentBufferView();
1973         bv->getIntl().getTransManager().deadkey(
1974                 c, get_accent(action).accent, bv->cursor().innerText(),
1975                 bv->cursor());
1976         // Need to clear, in case the minibuffer calls these
1977         // actions
1978         d->keyseq.clear();
1979         // copied verbatim from do_accent_char
1980         bv->cursor().resetAnchor();
1981 }
1982
1983
1984 void GuiApplication::processKeySym(KeySymbol const & keysym, KeyModifier state)
1985 {
1986         LYXERR(Debug::KEY, "KeySym is " << keysym.getSymbolName());
1987
1988         // Do nothing if we have nothing (JMarc)
1989         if (!keysym.isOK()) {
1990                 LYXERR(Debug::KEY, "Empty kbd action (probably composing)");
1991                 if (current_view_)
1992                         current_view_->restartCursor();
1993                 return;
1994         }
1995
1996         if (keysym.isModifier()) {
1997                 if (current_view_)
1998                         current_view_->restartCursor();
1999                 return;
2000         }
2001
2002         char_type encoded_last_key = keysym.getUCSEncoded();
2003
2004         // Do a one-deep top-level lookup for
2005         // cancel and meta-fake keys. RVDK_PATCH_5
2006         d->cancel_meta_seq.reset();
2007
2008         FuncRequest func = d->cancel_meta_seq.addkey(keysym, state);
2009         LYXERR(Debug::KEY, "action first set to [" << func.action() << ']');
2010
2011         // When not cancel or meta-fake, do the normal lookup.
2012         // Note how the meta_fake Mod1 bit is OR-ed in and reset afterwards.
2013         // Mostly, meta_fake_bit = NoModifier. RVDK_PATCH_5.
2014         if ((func.action() != LFUN_CANCEL) && (func.action() != LFUN_META_PREFIX)) {
2015                 // remove Caps Lock and Mod2 as a modifiers
2016                 func = d->keyseq.addkey(keysym, (state | d->meta_fake_bit));
2017                 LYXERR(Debug::KEY, "action now set to [" << func.action() << ']');
2018         }
2019
2020         // Dont remove this unless you know what you are doing.
2021         d->meta_fake_bit = NoModifier;
2022
2023         // Can this happen now ?
2024         if (func.action() == LFUN_NOACTION)
2025                 func = FuncRequest(LFUN_COMMAND_PREFIX);
2026
2027         LYXERR(Debug::KEY, " Key [action=" << func.action() << "]["
2028                 << d->keyseq.print(KeySequence::Portable) << ']');
2029
2030         // already here we know if it any point in going further
2031         // why not return already here if action == -1 and
2032         // num_bytes == 0? (Lgb)
2033
2034         if (d->keyseq.length() > 1 && current_view_)
2035                 current_view_->message(d->keyseq.print(KeySequence::ForGui));
2036
2037
2038         // Maybe user can only reach the key via holding down shift.
2039         // Let's see. But only if shift is the only modifier
2040         if (func.action() == LFUN_UNKNOWN_ACTION && state == ShiftModifier) {
2041                 LYXERR(Debug::KEY, "Trying without shift");
2042                 func = d->keyseq.addkey(keysym, NoModifier);
2043                 LYXERR(Debug::KEY, "Action now " << func.action());
2044         }
2045
2046         if (func.action() == LFUN_UNKNOWN_ACTION) {
2047                 // Hmm, we didn't match any of the keysequences. See
2048                 // if it's normal insertable text not already covered
2049                 // by a binding
2050                 if (keysym.isText() && d->keyseq.length() == 1) {
2051                         LYXERR(Debug::KEY, "isText() is true, inserting.");
2052                         func = FuncRequest(LFUN_SELF_INSERT,
2053                                            FuncRequest::KEYBOARD);
2054                 } else {
2055                         LYXERR(Debug::KEY, "Unknown, !isText() - giving up");
2056                         if (current_view_) {
2057                                 current_view_->message(_("Unknown function."));
2058                                 current_view_->restartCursor();
2059                         }
2060                         return;
2061                 }
2062         }
2063
2064         if (func.action() == LFUN_SELF_INSERT) {
2065                 if (encoded_last_key != 0) {
2066                         docstring const arg(1, encoded_last_key);
2067                         processFuncRequest(FuncRequest(LFUN_SELF_INSERT, arg,
2068                                              FuncRequest::KEYBOARD));
2069                         LYXERR(Debug::KEY, "SelfInsert arg[`" << to_utf8(arg) << "']");
2070                 }
2071         } else
2072                 processFuncRequest(func);
2073 }
2074
2075
2076 void GuiApplication::processFuncRequest(FuncRequest const & func)
2077 {
2078         lyx::dispatch(func);
2079 }
2080
2081
2082 void GuiApplication::processFuncRequestAsync(FuncRequest const & func)
2083 {
2084         addToFuncRequestQueue(func);
2085         processFuncRequestQueueAsync();
2086 }
2087
2088
2089 void GuiApplication::processFuncRequestQueue()
2090 {
2091         while (!d->func_request_queue_.empty()) {
2092                 processFuncRequest(d->func_request_queue_.front());
2093                 d->func_request_queue_.pop();
2094         }
2095 }
2096
2097
2098 void GuiApplication::processFuncRequestQueueAsync()
2099 {
2100         QTimer::singleShot(0, this, SLOT(slotProcessFuncRequestQueue()));
2101 }
2102
2103
2104 void GuiApplication::addToFuncRequestQueue(FuncRequest const & func)
2105 {
2106         d->func_request_queue_.push(func);
2107 }
2108
2109
2110 void GuiApplication::resetGui()
2111 {
2112         // Set the language defined by the user.
2113         setGuiLanguage();
2114
2115         // Read menus
2116         if (!readUIFile(toqstr(lyxrc.ui_file)))
2117                 // Gives some error box here.
2118                 return;
2119
2120         if (d->global_menubar_)
2121                 d->menus_.fillMenuBar(d->global_menubar_, 0, false);
2122
2123         QHash<int, GuiView *>::iterator it;
2124         for (it = d->views_.begin(); it != d->views_.end(); ++it) {
2125                 GuiView * gv = *it;
2126                 setCurrentView(gv);
2127                 gv->setLayoutDirection(layoutDirection());
2128                 gv->resetDialogs();
2129         }
2130
2131         processFuncRequest(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
2132 }
2133
2134
2135 void GuiApplication::createView(int view_id)
2136 {
2137         createView(QString(), true, view_id);
2138 }
2139
2140
2141 void GuiApplication::createView(QString const & geometry_arg, bool autoShow,
2142         int view_id)
2143 {
2144         // release the keyboard which might have been grabed by the global
2145         // menubar on Mac to catch shortcuts even without any GuiView.
2146         if (d->global_menubar_)
2147                 d->global_menubar_->releaseKeyboard();
2148
2149         // create new view
2150         int id = view_id;
2151         while (d->views_.find(id) != d->views_.end())
2152                 id++;
2153
2154         LYXERR(Debug::GUI, "About to create new window with ID " << id);
2155         GuiView * view = new GuiView(id);
2156         // register view
2157         d->views_[id] = view;
2158
2159         if (autoShow) {
2160                 view->show();
2161                 setActiveWindow(view);
2162         }
2163
2164         if (!geometry_arg.isEmpty()) {
2165 #ifdef Q_WS_WIN
2166                 int x, y;
2167                 int w, h;
2168                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
2169                 re.indexIn(geometry_arg);
2170                 w = re.cap(1).toInt();
2171                 h = re.cap(2).toInt();
2172                 x = re.cap(3).toInt();
2173                 y = re.cap(4).toInt();
2174                 view->setGeometry(x, y, w, h);
2175 #endif
2176         }
2177         view->setFocus();
2178 }
2179
2180
2181 Clipboard & GuiApplication::clipboard()
2182 {
2183         return d->clipboard_;
2184 }
2185
2186
2187 Selection & GuiApplication::selection()
2188 {
2189         return d->selection_;
2190 }
2191
2192
2193 FontLoader & GuiApplication::fontLoader()
2194 {
2195         return d->font_loader_;
2196 }
2197
2198
2199 Toolbars const & GuiApplication::toolbars() const
2200 {
2201         return d->toolbars_;
2202 }
2203
2204
2205 Toolbars & GuiApplication::toolbars()
2206 {
2207         return d->toolbars_;
2208 }
2209
2210
2211 Menus const & GuiApplication::menus() const
2212 {
2213         return d->menus_;
2214 }
2215
2216
2217 Menus & GuiApplication::menus()
2218 {
2219         return d->menus_;
2220 }
2221
2222
2223 QList<int> GuiApplication::viewIds() const
2224 {
2225         return d->views_.keys();
2226 }
2227
2228
2229 ColorCache & GuiApplication::colorCache()
2230 {
2231         return d->color_cache_;
2232 }
2233
2234
2235 int GuiApplication::exec()
2236 {
2237         // asynchronously handle batch commands. This event will be in
2238         // the event queue in front of other asynchronous events. Hence,
2239         // we can assume in the latter that the gui is setup already.
2240         QTimer::singleShot(0, this, SLOT(execBatchCommands()));
2241
2242         return QApplication::exec();
2243 }
2244
2245
2246 void GuiApplication::exit(int status)
2247 {
2248         QApplication::exit(status);
2249 }
2250
2251
2252 void GuiApplication::setGuiLanguage()
2253 {
2254         setLocale();
2255         QLocale theLocale;
2256         // install translation file for Qt built-in dialogs
2257         QString const language_name = QString("qt_") + theLocale.name();
2258         // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
2259         // Short-named translator can be loaded from a long name, but not the
2260         // opposite. Therefore, long name should be used without truncation.
2261         // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
2262         if (!d->qt_trans_.load(language_name,
2263                         QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
2264                 LYXERR(Debug::LOCALE, "Could not find Qt translations for locale "
2265                         << language_name);
2266         } else {
2267                 LYXERR(Debug::LOCALE, "Successfully installed Qt translations for locale "
2268                         << language_name);
2269         }
2270
2271         switch (theLocale.language()) {
2272         case QLocale::Arabic :
2273         case QLocale::Hebrew :
2274         case QLocale::Persian :
2275         case QLocale::Urdu :
2276                 setLayoutDirection(Qt::RightToLeft);
2277                 break;
2278         default:
2279                 setLayoutDirection(Qt::LeftToRight);
2280         }
2281 }
2282
2283
2284 void GuiApplication::execBatchCommands()
2285 {
2286         setGuiLanguage();
2287
2288         // Read menus
2289         if (!readUIFile(toqstr(lyxrc.ui_file)))
2290                 // Gives some error box here.
2291                 return;
2292
2293 #ifdef Q_WS_MACX
2294 #if QT_VERSION > 0x040600
2295         setAttribute(Qt::AA_MacDontSwapCtrlAndMeta,lyxrc.mac_dontswap_ctrl_meta);
2296 #endif
2297         // Create the global default menubar which is shown for the dialogs
2298         // and if no GuiView is visible.
2299         // This must be done after the session was recovered to know the "last files".
2300         d->global_menubar_ = new GlobalMenuBar;
2301         d->menus_.fillMenuBar(d->global_menubar_, 0, true);
2302 #endif
2303
2304         lyx::execBatchCommands();
2305 }
2306
2307
2308 QAbstractItemModel * GuiApplication::languageModel()
2309 {
2310         if (d->language_model_)
2311                 return d->language_model_;
2312
2313         QStandardItemModel * lang_model = new QStandardItemModel(this);
2314         lang_model->insertColumns(0, 3);
2315         int current_row;
2316         QIcon speller(getPixmap("images/", "dialog-show_spellchecker", "png"));
2317         QIcon saurus(getPixmap("images/", "thesaurus-entry", "png"));
2318         Languages::const_iterator it = lyx::languages.begin();
2319         Languages::const_iterator end = lyx::languages.end();
2320         for (; it != end; ++it) {
2321                 current_row = lang_model->rowCount();
2322                 lang_model->insertRows(current_row, 1);
2323                 QModelIndex pl_item = lang_model->index(current_row, 0);
2324                 QModelIndex sp_item = lang_model->index(current_row, 1);
2325                 QModelIndex th_item = lang_model->index(current_row, 2);
2326                 lang_model->setData(pl_item, qt_(it->second.display()), Qt::DisplayRole);
2327                 lang_model->setData(pl_item, toqstr(it->second.lang()), Qt::UserRole);
2328                 lang_model->setData(sp_item, qt_(it->second.display()), Qt::DisplayRole);
2329                 lang_model->setData(sp_item, toqstr(it->second.lang()), Qt::UserRole);
2330                 if (theSpellChecker() && theSpellChecker()->hasDictionary(&it->second))
2331                         lang_model->setData(sp_item, speller, Qt::DecorationRole);
2332                 lang_model->setData(th_item, qt_(it->second.display()), Qt::DisplayRole);
2333                 lang_model->setData(th_item, toqstr(it->second.lang()), Qt::UserRole);
2334                 if (thesaurus.thesaurusInstalled(from_ascii(it->second.code())))
2335                         lang_model->setData(th_item, saurus, Qt::DecorationRole);
2336         }
2337         d->language_model_ = new QSortFilterProxyModel(this);
2338         d->language_model_->setSourceModel(lang_model);
2339         d->language_model_->setSortLocaleAware(true);
2340         return d->language_model_;
2341 }
2342
2343
2344 void GuiApplication::restoreGuiSession()
2345 {
2346         if (!lyxrc.load_session)
2347                 return;
2348
2349         Session & session = theSession();
2350         LastOpenedSection::LastOpened const & lastopened =
2351                 session.lastOpened().getfiles();
2352
2353         validateCurrentView();
2354
2355         FileName active_file;
2356         // do not add to the lastfile list since these files are restored from
2357         // last session, and should be already there (regular files), or should
2358         // not be added at all (help files).
2359         for (size_t i = 0; i < lastopened.size(); ++i) {
2360                 FileName const & file_name = lastopened[i].file_name;
2361                 if (d->views_.empty() || (!lyxrc.open_buffers_in_tabs
2362                           && current_view_->documentBufferView() != 0)) {
2363                         boost::crc_32_type crc;
2364                         string const & fname = file_name.absFileName();
2365                         crc = for_each(fname.begin(), fname.end(), crc);
2366                         createView(crc.checksum());
2367                 }
2368                 current_view_->loadDocument(file_name, false);
2369
2370                 if (lastopened[i].active)
2371                         active_file = file_name;
2372         }
2373
2374         // Restore last active buffer
2375         Buffer * buffer = theBufferList().getBuffer(active_file);
2376         if (buffer && current_view_)
2377                 current_view_->setBuffer(buffer);
2378
2379         // clear this list to save a few bytes of RAM
2380         session.lastOpened().clear();
2381 }
2382
2383
2384 QString const GuiApplication::romanFontName()
2385 {
2386         QFont font;
2387         font.setKerning(false);
2388         font.setStyleHint(QFont::Serif);
2389         font.setFamily("serif");
2390
2391         return QFontInfo(font).family();
2392 }
2393
2394
2395 QString const GuiApplication::sansFontName()
2396 {
2397         QFont font;
2398         font.setKerning(false);
2399         font.setStyleHint(QFont::SansSerif);
2400         font.setFamily("sans");
2401
2402         return QFontInfo(font).family();
2403 }
2404
2405
2406 QString const GuiApplication::typewriterFontName()
2407 {
2408         QFont font;
2409         font.setKerning(false);
2410         font.setStyleHint(QFont::TypeWriter);
2411         font.setFamily("monospace");
2412
2413         return QFontInfo(font).family();
2414 }
2415
2416
2417 void GuiApplication::handleRegularEvents()
2418 {
2419         ForkedCallsController::handleCompletedProcesses();
2420 }
2421
2422
2423 bool GuiApplication::event(QEvent * e)
2424 {
2425         switch(e->type()) {
2426         case QEvent::FileOpen: {
2427                 // Open a file; this happens only on Mac OS X for now.
2428                 //
2429                 // We do this asynchronously because on startup the batch
2430                 // commands are not executed here yet and the gui is not ready
2431                 // therefore.
2432                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
2433                 FuncRequest const fr(LFUN_FILE_OPEN, qstring_to_ucs4(foe->file()));
2434                 processFuncRequestAsync(fr);
2435                 e->accept();
2436                 return true;
2437         }
2438         default:
2439                 return QApplication::event(e);
2440         }
2441 }
2442
2443
2444 bool GuiApplication::notify(QObject * receiver, QEvent * event)
2445 {
2446         try {
2447                 return QApplication::notify(receiver, event);
2448         }
2449         catch (ExceptionMessage const & e) {
2450                 switch(e.type_) {
2451                 case ErrorException:
2452                         emergencyCleanup();
2453                         setQuitOnLastWindowClosed(false);
2454                         closeAllViews();
2455                         Alert::error(e.title_, e.details_);
2456 #ifndef NDEBUG
2457                         // Properly crash in debug mode in order to get a useful backtrace.
2458                         abort();
2459 #endif
2460                         // In release mode, try to exit gracefully.
2461                         this->exit(1);
2462
2463                 case BufferException: {
2464                         if (!current_view_ || !current_view_->documentBufferView())
2465                                 return false;
2466                         Buffer * buf = &current_view_->documentBufferView()->buffer();
2467                         docstring details = e.details_ + '\n';
2468                         details += buf->emergencyWrite();
2469                         theBufferList().release(buf);
2470                         details += "\n" + _("The current document was closed.");
2471                         Alert::error(e.title_, details);
2472                         return false;
2473                 }
2474                 case WarningException:
2475                         Alert::warning(e.title_, e.details_);
2476                         return false;
2477                 }
2478         }
2479         catch (exception const & e) {
2480                 docstring s = _("LyX has caught an exception, it will now "
2481                         "attempt to save all unsaved documents and exit."
2482                         "\n\nException: ");
2483                 s += from_ascii(e.what());
2484                 Alert::error(_("Software exception Detected"), s);
2485                 lyx_exit(1);
2486         }
2487         catch (...) {
2488                 docstring s = _("LyX has caught some really weird exception, it will "
2489                         "now attempt to save all unsaved documents and exit.");
2490                 Alert::error(_("Software exception Detected"), s);
2491                 lyx_exit(1);
2492         }
2493
2494         return false;
2495 }
2496
2497
2498 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
2499 {
2500         QColor const & qcol = d->color_cache_.get(col);
2501         if (!qcol.isValid()) {
2502                 rgbcol.r = 0;
2503                 rgbcol.g = 0;
2504                 rgbcol.b = 0;
2505                 return false;
2506         }
2507         rgbcol.r = qcol.red();
2508         rgbcol.g = qcol.green();
2509         rgbcol.b = qcol.blue();
2510         return true;
2511 }
2512
2513
2514 bool Application::getRgbColorUncached(ColorCode col, RGBColor & rgbcol)
2515 {
2516         QColor const qcol(lcolor.getX11Name(col).c_str());
2517         if (!qcol.isValid()) {
2518                 rgbcol.r = 0;
2519                 rgbcol.g = 0;
2520                 rgbcol.b = 0;
2521                 return false;
2522         }
2523         rgbcol.r = qcol.red();
2524         rgbcol.g = qcol.green();
2525         rgbcol.b = qcol.blue();
2526         return true;
2527 }
2528
2529
2530 string const GuiApplication::hexName(ColorCode col)
2531 {
2532         return ltrim(fromqstr(d->color_cache_.get(col).name()), "#");
2533 }
2534
2535
2536 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
2537 {
2538         SocketNotifier * sn = new SocketNotifier(this, fd, func);
2539         d->socket_notifiers_[fd] = sn;
2540         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
2541 }
2542
2543
2544 void GuiApplication::socketDataReceived(int fd)
2545 {
2546         d->socket_notifiers_[fd]->func_();
2547 }
2548
2549
2550 void GuiApplication::unregisterSocketCallback(int fd)
2551 {
2552         d->socket_notifiers_.take(fd)->setEnabled(false);
2553 }
2554
2555
2556 void GuiApplication::commitData(QSessionManager & sm)
2557 {
2558         /// The implementation is required to avoid an application exit
2559         /// when session state save is triggered by session manager.
2560         /// The default implementation sends a close event to all
2561         /// visible top level widgets when session managment allows
2562         /// interaction.
2563         /// We are changing that to close all wiew one by one.
2564         /// FIXME: verify if the default implementation is enough now.
2565         #ifdef QT_NO_SESSIONMANAGER
2566                 #ifndef _MSC_VER
2567                         #warning Qt is compiled without session manager
2568                 #else
2569                         #pragma message("warning: Qt is compiled without session manager")
2570                 #endif
2571                 (void) sm;
2572         #else
2573                 if (sm.allowsInteraction() && !closeAllViews())
2574                         sm.cancel();
2575         #endif
2576 }
2577
2578
2579 void GuiApplication::unregisterView(GuiView * gv)
2580 {
2581         LAPPERR(d->views_[gv->id()] == gv);
2582         d->views_.remove(gv->id());
2583         if (current_view_ == gv)
2584                 current_view_ = 0;
2585 }
2586
2587
2588 bool GuiApplication::closeAllViews()
2589 {
2590         if (d->views_.empty())
2591                 return true;
2592
2593         // When a view/window was closed before without quitting LyX, there
2594         // are already entries in the lastOpened list.
2595         theSession().lastOpened().clear();
2596
2597         QList<GuiView *> const views = d->views_.values();
2598         foreach (GuiView * view, views) {
2599                 if (!view->closeScheduled())
2600                         return false;
2601         }
2602
2603         d->views_.clear();
2604         return true;
2605 }
2606
2607
2608 GuiView & GuiApplication::view(int id) const
2609 {
2610         LAPPERR(d->views_.contains(id));
2611         return *d->views_.value(id);
2612 }
2613
2614
2615 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
2616 {
2617         QList<GuiView *> const views = d->views_.values();
2618         foreach (GuiView * view, views)
2619                 view->hideDialog(name, inset);
2620 }
2621
2622
2623 Buffer const * GuiApplication::updateInset(Inset const * inset) const
2624 {
2625         Buffer const * buffer_ = 0;
2626         QHash<int, GuiView *>::const_iterator end = d->views_.end();
2627         for (QHash<int, GuiView *>::iterator it = d->views_.begin(); it != end; ++it) {
2628                 if (Buffer const * ptr = (*it)->updateInset(inset))
2629                         buffer_ = ptr;
2630         }
2631         return buffer_;
2632 }
2633
2634
2635 bool GuiApplication::searchMenu(FuncRequest const & func,
2636         docstring_list & names) const
2637 {
2638         return d->menus_.searchMenu(func, names);
2639 }
2640
2641
2642 // Ensure that a file is read only once (prevents include loops)
2643 static QStringList uifiles;
2644 // store which ui files define Toolbars
2645 static QStringList toolbar_uifiles;
2646
2647
2648 GuiApplication::ReturnValues GuiApplication::readUIFile(FileName ui_path)
2649 {
2650         enum {
2651                 ui_menuset = 1,
2652                 ui_toolbars,
2653                 ui_toolbarset,
2654                 ui_include,
2655                 ui_format,
2656                 ui_last
2657         };
2658
2659         LexerKeyword uitags[] = {
2660                 { "format", ui_format },
2661                 { "include", ui_include },
2662                 { "menuset", ui_menuset },
2663                 { "toolbars", ui_toolbars },
2664                 { "toolbarset", ui_toolbarset }
2665         };
2666
2667         Lexer lex(uitags);
2668         lex.setFile(ui_path);
2669         if (!lex.isOK()) {
2670                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
2671                                          << endl;
2672         }
2673
2674         if (lyxerr.debugging(Debug::PARSER))
2675                 lex.printTable(lyxerr);
2676
2677         bool error = false;
2678         // format before introduction of format tag
2679         unsigned int format = 0;
2680         while (lex.isOK()) {
2681                 int const status = lex.lex();
2682
2683                 // we have to do this check here, outside the switch,
2684                 // because otherwise we would start reading include files,
2685                 // e.g., if the first tag we hit was an include tag.
2686                 if (status == ui_format)
2687                         if (lex.next()) {
2688                                 format = lex.getInteger();
2689                                 continue;
2690                         }
2691
2692                 // this will trigger unless the first tag we hit is a format
2693                 // tag, with the right format.
2694                 if (format != LFUN_FORMAT)
2695                         return FormatMismatch;
2696
2697                 switch (status) {
2698                 case Lexer::LEX_FEOF:
2699                         continue;
2700
2701                 case ui_include: {
2702                         lex.next(true);
2703                         QString const file = toqstr(lex.getString());
2704                         bool const success = readUIFile(file, true);
2705                         if (!success) {
2706                                 LYXERR0("Failed to read inlcuded file: " << fromqstr(file));
2707                                 return ReadError;
2708                         }
2709                         break;
2710                 }
2711
2712                 case ui_menuset:
2713                         d->menus_.read(lex);
2714                         break;
2715
2716                 case ui_toolbarset:
2717                         d->toolbars_.readToolbars(lex);
2718                         break;
2719
2720                 case ui_toolbars:
2721                         d->toolbars_.readToolbarSettings(lex);
2722                         toolbar_uifiles.push_back(toqstr(ui_path.absFileName()));
2723                         break;
2724
2725                 default:
2726                         if (!rtrim(lex.getString()).empty())
2727                                 lex.printError("LyX::ReadUIFile: "
2728                                                "Unknown menu tag: `$$Token'");
2729                         else
2730                                 LYXERR0("Error with status: " << status);
2731                         error = true;
2732                         break;
2733                 }
2734
2735         }
2736         return (error ? ReadError : ReadOK);
2737 }
2738
2739
2740 bool GuiApplication::readUIFile(QString const & name, bool include)
2741 {
2742         LYXERR(Debug::INIT, "About to read " << name << "...");
2743
2744         FileName ui_path;
2745         if (include) {
2746                 ui_path = libFileSearch("ui", name, "inc");
2747                 if (ui_path.empty())
2748                         ui_path = libFileSearch("ui", changeExtension(name, "inc"));
2749         } else {
2750                 ui_path = libFileSearch("ui", name, "ui");
2751         }
2752
2753         if (ui_path.empty()) {
2754                 static const QString defaultUIFile = "default";
2755                 LYXERR(Debug::INIT, "Could not find " << name);
2756                 if (include) {
2757                         Alert::warning(_("Could not find UI definition file"),
2758                                 bformat(_("Error while reading the included file\n%1$s\n"
2759                                         "Please check your installation."), qstring_to_ucs4(name)));
2760                         return false;
2761                 }
2762                 if (name == defaultUIFile) {
2763                         LYXERR(Debug::INIT, "Could not find default UI file!!");
2764                         Alert::warning(_("Could not find default UI file"),
2765                                 _("LyX could not find the default UI file!\n"
2766                                   "Please check your installation."));
2767                         return false;
2768                 }
2769                 Alert::warning(_("Could not find UI definition file"),
2770                 bformat(_("Error while reading the configuration file\n%1$s\n"
2771                         "Falling back to default.\n"
2772                         "Please look under Tools>Preferences>User Interface and\n"
2773                         "check which User Interface file you are using."), qstring_to_ucs4(name)));
2774                 return readUIFile(defaultUIFile, false);
2775         }
2776
2777         QString const uifile = toqstr(ui_path.absFileName());
2778         if (uifiles.contains(uifile)) {
2779                 if (!include) {
2780                         // We are reading again the top uifile so reset the safeguard:
2781                         uifiles.clear();
2782                         d->menus_.reset();
2783                         d->toolbars_.reset();
2784                 } else {
2785                         LYXERR(Debug::INIT, "UI file '" << name << "' has been read already. "
2786                                 << "Is this an include loop?");
2787                         return false;
2788                 }
2789         }
2790         uifiles.push_back(uifile);
2791
2792         LYXERR(Debug::INIT, "Found " << name << " in " << ui_path);
2793
2794         ReturnValues retval = readUIFile(ui_path);
2795
2796         if (retval == FormatMismatch) {
2797                 LYXERR(Debug::FILES, "Converting ui file to format " << LFUN_FORMAT);
2798                 FileName const tempfile = FileName::tempName("convert_ui");
2799                 bool const success = prefs2prefs(ui_path, tempfile, true);
2800                 if (!success) {
2801                         LYXERR0("Unable to convert " << ui_path.absFileName() <<
2802                                 " to format " << LFUN_FORMAT << ".");
2803                 } else {
2804                         retval = readUIFile(tempfile);
2805                         tempfile.removeFile();
2806                 }
2807         }
2808
2809         if (retval != ReadOK) {
2810                 LYXERR0("Unable to read UI file: " << ui_path.absFileName());
2811                 return false;
2812         }
2813
2814         if (include)
2815                 return true;
2816
2817         QSettings settings;
2818         settings.beginGroup("ui_files");
2819         bool touched = false;
2820         for (int i = 0; i != uifiles.size(); ++i) {
2821                 QFileInfo fi(uifiles[i]);
2822                 QDateTime const date_value = fi.lastModified();
2823                 QString const name_key = QString::number(i);
2824                 // if an ui file which defines Toolbars has changed,
2825                 // we have to reset the settings
2826                 if (toolbar_uifiles.contains(uifiles[i])
2827                  && (!settings.contains(name_key)
2828                  || settings.value(name_key).toString() != uifiles[i]
2829                  || settings.value(name_key + "/date").toDateTime() != date_value)) {
2830                         touched = true;
2831                         settings.setValue(name_key, uifiles[i]);
2832                         settings.setValue(name_key + "/date", date_value);
2833                 }
2834         }
2835         settings.endGroup();
2836         if (touched)
2837                 settings.remove("views");
2838
2839         return true;
2840 }
2841
2842
2843 void GuiApplication::onLastWindowClosed()
2844 {
2845         if (d->global_menubar_)
2846                 d->global_menubar_->grabKeyboard();
2847 }
2848
2849
2850 void GuiApplication::startLongOperation() {
2851         d->key_checker_.start();
2852 }
2853
2854
2855 bool GuiApplication::longOperationCancelled() {
2856         return d->key_checker_.pressed();
2857 }
2858
2859
2860 void GuiApplication::stopLongOperation() {
2861         d->key_checker_.stop();
2862 }
2863
2864
2865 bool GuiApplication::longOperationStarted() {
2866         return d->key_checker_.started();
2867 }
2868
2869
2870 ////////////////////////////////////////////////////////////////////////
2871 //
2872 // X11 specific stuff goes here...
2873
2874 #ifdef Q_WS_X11
2875 bool GuiApplication::x11EventFilter(XEvent * xev)
2876 {
2877         if (!current_view_)
2878                 return false;
2879
2880         switch (xev->type) {
2881         case SelectionRequest: {
2882                 if (xev->xselectionrequest.selection != XA_PRIMARY)
2883                         break;
2884                 LYXERR(Debug::SELECTION, "X requested selection.");
2885                 BufferView * bv = current_view_->currentBufferView();
2886                 if (bv) {
2887                         docstring const sel = bv->requestSelection();
2888                         if (!sel.empty())
2889                                 d->selection_.put(sel);
2890                 }
2891                 break;
2892         }
2893         case SelectionClear: {
2894                 if (xev->xselectionclear.selection != XA_PRIMARY)
2895                         break;
2896                 LYXERR(Debug::SELECTION, "Lost selection.");
2897                 BufferView * bv = current_view_->currentBufferView();
2898                 if (bv)
2899                         bv->clearSelection();
2900                 break;
2901         }
2902         }
2903         return false;
2904 }
2905 #endif
2906
2907 } // namespace frontend
2908
2909
2910 void hideDialogs(std::string const & name, Inset * inset)
2911 {
2912         if (theApp())
2913                 frontend::guiApp->hideDialogs(name, inset);
2914 }
2915
2916
2917 ////////////////////////////////////////////////////////////////////
2918 //
2919 // Font stuff
2920 //
2921 ////////////////////////////////////////////////////////////////////
2922
2923 frontend::FontLoader & theFontLoader()
2924 {
2925         LAPPERR(frontend::guiApp);
2926         return frontend::guiApp->fontLoader();
2927 }
2928
2929
2930 frontend::FontMetrics const & theFontMetrics(Font const & f)
2931 {
2932         return theFontMetrics(f.fontInfo());
2933 }
2934
2935
2936 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
2937 {
2938         LAPPERR(frontend::guiApp);
2939         return frontend::guiApp->fontLoader().metrics(f);
2940 }
2941
2942
2943 ////////////////////////////////////////////////////////////////////
2944 //
2945 // Misc stuff
2946 //
2947 ////////////////////////////////////////////////////////////////////
2948
2949 frontend::Clipboard & theClipboard()
2950 {
2951         LAPPERR(frontend::guiApp);
2952         return frontend::guiApp->clipboard();
2953 }
2954
2955
2956 frontend::Selection & theSelection()
2957 {
2958         LAPPERR(frontend::guiApp);
2959         return frontend::guiApp->selection();
2960 }
2961
2962
2963 } // namespace lyx
2964
2965 #include "moc_GuiApplication.cpp"