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