src/frontends/qt4/GuiApplication.cpp

   1 /**
   2  * \file GuiApplication.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "GuiApplication.h"
  16
  17 #include "ColorCache.h"
  18 #include "GuiClipboard.h"
  19 #include "GuiImage.h"
  20 #include "GuiKeySymbol.h"
  21 #include "GuiSelection.h"
  22 #include "GuiView.h"
  23 #include "Menus.h"
  24 #include "qt_helpers.h"
  25 #include "ToolbarBackend.h"
  26
  27 #include "frontends/alert.h"
  28 #include "frontends/Application.h"
  29 #include "frontends/FontLoader.h"
  30 #include "frontends/FontMetrics.h"
  31
  32 #include "Buffer.h"
  33 #include "BufferList.h"
  34 #include "BufferView.h"
  35 #include "Color.h"
  36 #include "Font.h"
  37 #include "FuncRequest.h"
  38 #include "FuncStatus.h"
  39 #include "Language.h"
  40 #include "Lexer.h"
  41 #include "LyX.h"
  42 #include "LyXFunc.h"
  43 #include "LyXRC.h"
  44 #include "Session.h"
  45 #include "version.h"
  46
  47 #include "support/lassert.h"
  48 #include "support/debug.h"
  49 #include "support/ExceptionMessage.h"
  50 #include "support/FileName.h"
  51 #include "support/foreach.h"
  52 #include "support/ForkedCalls.h"
  53 #include "support/gettext.h"
  54 #include "support/lstrings.h"
  55 #include "support/os.h"
  56 #include "support/Package.h"
  57
  58 #ifdef Q_WS_MACX
  59 #include "support/linkback/LinkBackProxy.h"
  60 #endif
  61
  62 #include <QClipboard>
  63 #include <QEventLoop>
  64 #include <QFileOpenEvent>
  65 #include <QHash>
  66 #include <QLocale>
  67 #include <QLibraryInfo>
  68 #include <QMacPasteboardMime>
  69 #include <QMenuBar>
  70 #include <QMimeData>
  71 #include <QPixmapCache>
  72 #include <QRegExp>
  73 #include <QSessionManager>
  74 #include <QSocketNotifier>
  75 #include <QSortFilterProxyModel>
  76 #include <QStandardItemModel>
  77 #include <QTextCodec>
  78 #include <QTimer>
  79 #include <QTranslator>
  80 #include <QWidget>
  81
  82 #ifdef Q_WS_X11
  83 #include <X11/Xatom.h>
  84 #include <X11/Xlib.h>
  85 #undef CursorShape
  86 #undef None
  87 #endif
  88
  89 #ifdef Q_WS_WIN
  90 #include <QList>
  91 #include <QWindowsMime>
  92 #if defined(Q_CYGWIN_WIN) || defined(Q_CC_MINGW)
  93 #include <wtypes.h>
  94 #endif
  95 #include <objidl.h>
  96 #endif // Q_WS_WIN
  97
  98 #include <boost/bind.hpp>
  99
 100 #include <exception>
 101
 102 using namespace std;
 103 using namespace lyx::support;
 104
 105
 106 namespace lyx {
 107
 108 // defined in GuiClipboard.cpp.
 109 extern char const * const lyx_mime_type;
 110 extern char const * const pdf_mime_type;
 111 extern char const * const emf_mime_type;
 112 extern char const * const wmf_mime_type;
 113
 114 frontend::Application * createApplication(int & argc, char * argv[])
 115 {
 116         return new frontend::GuiApplication(argc, argv);
 117 }
 118
 119
 120 namespace frontend {
 121
 122 class SocketNotifier : public QSocketNotifier
 123 {
 124 public:
 125         /// connect a connection notification from the LyXServerSocket
 126         SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
 127                 : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
 128         {}
 129
 130 public:
 131         /// The callback function
 132         Application::SocketCallback func_;
 133 };
 134
 135
 136 ////////////////////////////////////////////////////////////////////////
 137 // Mac specific stuff goes here...
 138
 139 class MenuTranslator : public QTranslator
 140 {
 141 public:
 142         MenuTranslator(QObject * parent)
 143                 : QTranslator(parent)
 144         {}
 145
 146         QString translate(const char * /*context*/,
 147           const char * sourceText,
 148           const char * /*comment*/ = 0)
 149         {
 150                 string const s = sourceText;
 151                 if (s == N_("About %1") || s == N_("Preferences")
 152                                 || s == N_("Reconfigure") || s == N_("Quit %1"))
 153                         return qt_(s);
 154                 else
 155                         return QString();
 156         }
 157 };
 158
 159 class GlobalMenuBar : public QMenuBar
 160 {
 161 public:
 162         ///
 163         GlobalMenuBar() : QMenuBar(0) {}
 164
 165         ///
 166         bool event(QEvent * e)
 167         {
 168                 if (e->type() == QEvent::ShortcutOverride) {
 169                         //          && activeWindow() == 0) {
 170                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 171                         KeySymbol sym;
 172                         setKeySymbol(&sym, ke);
 173                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 174                         e->accept();
 175                         return true;
 176                 }
 177                 return false;
 178         }
 179 };
 180
 181 #ifdef Q_WS_MACX
 182 // QMacPasteboardMimeGraphics can only be compiled on Mac.
 183
 184 class QMacPasteboardMimeGraphics : public QMacPasteboardMime
 185 {
 186 public:
 187         QMacPasteboardMimeGraphics()
 188                 : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL)
 189         {}
 190
 191         QString convertorName() { return "Graphics"; }
 192
 193         QString flavorFor(QString const & mime)
 194         {
 195                 LYXERR(Debug::ACTION, "flavorFor " << mime);
 196                 if (mime == QLatin1String(pdf_mime_type))
 197                         return QLatin1String("com.adobe.pdf");
 198                 return QString();
 199         }
 200
 201         QString mimeFor(QString flav)
 202         {
 203                 LYXERR(Debug::ACTION, "mimeFor " << flav);
 204                 if (flav == QLatin1String("com.adobe.pdf"))
 205                         return QLatin1String(pdf_mime_type);
 206                 return QString();
 207         }
 208
 209         bool canConvert(QString const & mime, QString flav)
 210         { return mimeFor(flav) == mime; }
 211
 212         QVariant convertToMime(QString const & mime, QList<QByteArray> data, QString flav)
 213         {
 214                 if(data.count() > 1)
 215                         qWarning("QMacPasteboardMimeGraphics: Cannot handle multiple member data");
 216                 return data.first();
 217         }
 218
 219         QList<QByteArray> convertFromMime(QString const & mime, QVariant data, QString flav)
 220         {
 221                 QList<QByteArray> ret;
 222                 ret.append(data.toByteArray());
 223                 return ret;
 224         }
 225 };
 226 #endif
 227
 228 ///////////////////////////////////////////////////////////////
 229 // You can find more platform specific stuff
 230 // at the end of this file...
 231 ///////////////////////////////////////////////////////////////
 232
 233 ////////////////////////////////////////////////////////////////////////
 234 // Windows specific stuff goes here...
 235
 236 #ifdef Q_WS_WIN
 237 // QWindowsMimeMetafile can only be compiled on Windows.
 238
 239 static FORMATETC cfFromMime(QString const & mimetype)
 240 {
 241         FORMATETC formatetc;
 242         if (mimetype == emf_mime_type) {
 243                 formatetc.cfFormat = CF_ENHMETAFILE;
 244                 formatetc.tymed = TYMED_ENHMF;
 245         } else if (mimetype == wmf_mime_type) {
 246                 formatetc.cfFormat = CF_METAFILEPICT;
 247                 formatetc.tymed = TYMED_MFPICT;
 248         }
 249         formatetc.ptd = 0;
 250         formatetc.dwAspect = DVASPECT_CONTENT;
 251         formatetc.lindex = -1;
 252         return formatetc;
 253 }
 254
 255
 256 class QWindowsMimeMetafile : public QWindowsMime {
 257 public:
 258         QWindowsMimeMetafile() {}
 259
 260         bool canConvertFromMime(FORMATETC const & formatetc,
 261                 QMimeData const * mimedata) const
 262         {
 263                 return false;
 264         }
 265
 266         bool canConvertToMime(QString const & mimetype,
 267                 IDataObject * pDataObj) const
 268         {
 269                 if (mimetype != emf_mime_type && mimetype != wmf_mime_type)
 270                         return false;
 271                 FORMATETC formatetc = cfFromMime(mimetype);
 272                 return pDataObj->QueryGetData(&formatetc) == S_OK;
 273         }
 274
 275         bool convertFromMime(FORMATETC const & formatetc,
 276                 const QMimeData * mimedata, STGMEDIUM * pmedium) const
 277         {
 278                 return false;
 279         }
 280
 281         QVariant convertToMime(QString const & mimetype, IDataObject * pDataObj,
 282                 QVariant::Type preferredType) const
 283         {
 284                 QByteArray data;
 285                 if (!canConvertToMime(mimetype, pDataObj))
 286                         return data;
 287
 288                 FORMATETC formatetc = cfFromMime(mimetype);
 289                 STGMEDIUM s;
 290                 if (pDataObj->GetData(&formatetc, &s) != S_OK)
 291                         return data;
 292
 293                 int dataSize;
 294                 if (s.tymed == TYMED_ENHMF) {
 295                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0);
 296                         data.resize(dataSize);
 297                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize,
 298                                 (LPBYTE)data.data());
 299                 } else if (s.tymed == TYMED_MFPICT) {
 300                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0);
 301                         data.resize(dataSize);
 302                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize,
 303                                 (LPBYTE)data.data());
 304                 }
 305                 data.detach();
 306                 ReleaseStgMedium(&s);
 307
 308                 return data;
 309         }
 310
 311
 312         QVector<FORMATETC> formatsForMime(QString const & mimeType,
 313                 QMimeData const * mimeData) const
 314         {
 315                 QVector<FORMATETC> formats;
 316                 formats += cfFromMime(mimeType);
 317                 return formats;
 318         }
 319
 320         QString mimeForFormat(FORMATETC const & formatetc) const
 321         {
 322                 switch (formatetc.cfFormat) {
 323                 case CF_ENHMETAFILE:
 324                         return emf_mime_type;
 325                 case CF_METAFILEPICT:
 326                         return wmf_mime_type;
 327                 }
 328                 return QString();
 329         }
 330 };
 331
 332 #endif // Q_WS_WIN
 333
 334 ////////////////////////////////////////////////////////////////////////
 335 // GuiApplication::Private definition and implementation.
 336 ////////////////////////////////////////////////////////////////////////
 337
 338 struct GuiApplication::Private
 339 {
 340         Private()
 341                 : language_model_(0), global_menubar_(0)
 342         {
 343 #ifdef Q_WS_MACX
 344                 // Create the global default menubar which is shown for the dialogs
 345                 // and if no GuiView is visible.
 346                 global_menubar_ = new GlobalMenuBar();
 347 #endif
 348         }
 349
 350         ///
 351         QSortFilterProxyModel * language_model_;
 352         ///
 353         GuiClipboard clipboard_;
 354         ///
 355         GuiSelection selection_;
 356         ///
 357         FontLoader font_loader_;
 358         ///
 359         ColorCache color_cache_;
 360         ///
 361         QTranslator qt_trans_;
 362         ///
 363         QHash<int, SocketNotifier *> socket_notifiers_;
 364         ///
 365         Menus menus_;
 366         /// this timer is used for any regular events one wants to
 367         /// perform. at present it is used to check if forked processes
 368         /// are done.
 369         QTimer general_timer_;
 370
 371         /// Multiple views container.
 372         /**
 373         * Warning: This must not be a smart pointer as the destruction of the
 374         * object is handled by Qt when the view is closed
 375         * \sa Qt::WA_DeleteOnClose attribute.
 376         */
 377         QHash<int, GuiView *> views_;
 378
 379         /// Only used on mac.
 380         GlobalMenuBar * global_menubar_;
 381
 382 #ifdef Q_WS_MACX
 383         /// Linkback mime handler for MacOSX.
 384         QMacPasteboardMimeGraphics mac_pasteboard_mime_;
 385 #endif
 386
 387 #ifdef Q_WS_WIN
 388         /// WMF Mime handler for Windows clipboard.
 389         // FIXME for Windows Vista and Qt4 (see http://bugzilla.lyx.org/show_bug.cgi?id=4846)
 390         // But this makes LyX crash on exit when LyX is compiled in release mode and if there
 391         // is something in the clipboard.
 392         QWindowsMimeMetafile wmf_mime_;
 393 #endif
 394 };
 395
 396
 397 GuiApplication * guiApp;
 398
 399 GuiApplication::~GuiApplication()
 400 {
 401 #ifdef Q_WS_MACX
 402         closeAllLinkBackLinks();
 403 #endif
 404         delete d;
 405 }
 406
 407
 408 GuiApplication::GuiApplication(int & argc, char ** argv)
 409         : QApplication(argc, argv),     current_view_(0), d(new GuiApplication::Private)
 410 {
 411         QString app_name = "LyX";
 412         QCoreApplication::setOrganizationName(app_name);
 413         QCoreApplication::setOrganizationDomain("lyx.org");
 414         QCoreApplication::setApplicationName(app_name + "-" + lyx_version);
 415
 416         // FIXME: quitOnLastWindowClosed is true by default. We should have a
 417         // lyxrc setting for this in order to let the application stay resident.
 418         // But then we need some kind of dock icon, at least on Windows.
 419         /*
 420         if (lyxrc.quit_on_last_window_closed)
 421                 setQuitOnLastWindowClosed(false);
 422         */
 423 #ifdef Q_WS_MACX
 424         // FIXME: Do we need a lyxrc setting for this on Mac? This behaviour
 425         // seems to be the default case for applications like LyX.
 426         setQuitOnLastWindowClosed(false);
 427 #endif
 428
 429 #ifdef Q_WS_X11
 430         // doubleClickInterval() is 400 ms on X11 which is just too long.
 431         // On Windows and Mac OS X, the operating system's value is used.
 432         // On Microsoft Windows, calling this function sets the double
 433         // click interval for all applications. So we don't!
 434         QApplication::setDoubleClickInterval(300);
 435 #endif
 436
 437         // install translation file for Qt built-in dialogs
 438         QString language_name = QString("qt_") + QLocale::system().name();
 439
 440         // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
 441         // Short-named translator can be loaded from a long name, but not the
 442         // opposite. Therefore, long name should be used without truncation.
 443         // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
 444         if (d->qt_trans_.load(language_name,
 445                 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
 446         {
 447                 installTranslator(&d->qt_trans_);
 448                 // even if the language calls for RtL, don't do that
 449                 setLayoutDirection(Qt::LeftToRight);
 450                 LYXERR(Debug::GUI, "Successfully installed Qt translations for locale "
 451                         << language_name);
 452         } else
 453                 LYXERR(Debug::GUI, "Could not find  Qt translations for locale "
 454                         << language_name);
 455
 456 #ifdef Q_WS_MACX
 457         // This allows to translate the strings that appear in the LyX menu.
 458         /// A translator suitable for the entries in the LyX menu.
 459         /// Only needed with Qt/Mac.
 460         installTranslator(new MenuTranslator(this));
 461 #endif
 462         connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
 463
 464         using namespace lyx::graphics;
 465
 466         Image::newImage = boost::bind(&GuiImage::newImage);
 467         Image::loadableFormats = boost::bind(&GuiImage::loadableFormats);
 468
 469         // needs to be done before reading lyxrc
 470         QWidget w;
 471         lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
 472
 473         guiApp = this;
 474
 475         // Set the cache to 5120 kilobytes which corresponds to screen size of
 476         // 1280 by 1024 pixels with a color depth of 32 bits.
 477         QPixmapCache::setCacheLimit(5120);
 478
 479         // Initialize RC Fonts
 480         if (lyxrc.roman_font_name.empty())
 481                 lyxrc.roman_font_name = fromqstr(romanFontName());
 482
 483         if (lyxrc.sans_font_name.empty())
 484                 lyxrc.sans_font_name = fromqstr(sansFontName());
 485
 486         if (lyxrc.typewriter_font_name.empty())
 487                 lyxrc.typewriter_font_name = fromqstr(typewriterFontName());
 488
 489         d->general_timer_.setInterval(500);
 490         connect(&d->general_timer_, SIGNAL(timeout()),
 491                 this, SLOT(handleRegularEvents()));
 492         d->general_timer_.start();
 493 }
 494
 495
 496 bool GuiApplication::getStatus(FuncRequest const & cmd, FuncStatus & flag) const
 497 {
 498         bool enable = true;
 499
 500         switch(cmd.action) {
 501
 502         case LFUN_WINDOW_CLOSE:
 503                 enable = d->views_.size() > 0;
 504                 break;
 505
 506         case LFUN_BUFFER_NEW:
 507         case LFUN_BUFFER_NEW_TEMPLATE:
 508         case LFUN_FILE_OPEN:
 509         case LFUN_SCREEN_FONT_UPDATE:
 510         case LFUN_SET_COLOR:
 511         case LFUN_WINDOW_NEW:
 512         case LFUN_LYX_QUIT:
 513                 enable = true;
 514                 break;
 515
 516         default:
 517                 return false;
 518         }
 519
 520         if (!enable)
 521                 flag.enabled(false);
 522
 523         return true;
 524 }
 525
 526
 527 bool GuiApplication::dispatch(FuncRequest const & cmd)
 528 {
 529         switch (cmd.action) {
 530
 531         case LFUN_WINDOW_NEW:
 532                 createView(toqstr(cmd.argument()));
 533                 break;
 534
 535         case LFUN_WINDOW_CLOSE:
 536                 // update bookmark pit of the current buffer before window close
 537                 for (size_t i = 0; i < LyX::ref().session().bookmarks().size(); ++i)
 538                         theLyXFunc().gotoBookmark(i+1, false, false);
 539                 current_view_->close();
 540                 break;
 541
 542         case LFUN_LYX_QUIT:
 543                 // quitting is triggered by the gui code
 544                 // (leaving the event loop).
 545                 if (current_view_)
 546                         current_view_->message(from_utf8(N_("Exiting.")));
 547                 if (closeAllViews())
 548                         quit();
 549                 break;
 550
 551         case LFUN_SCREEN_FONT_UPDATE: {
 552                 // handle the screen font changes.
 553                 d->font_loader_.update();
 554                 // Backup current_view_
 555                 GuiView * view = current_view_;
 556                 // Set current_view_ to zero to forbid GuiWorkArea::redraw()
 557                 // to skip the refresh.
 558                 current_view_ = 0;
 559                 BufferList::iterator it = theBufferList().begin();
 560                 BufferList::iterator const end = theBufferList().end();
 561                 for (; it != end; ++it)
 562                         (*it)->changed();
 563                 // Restore current_view_
 564                 current_view_ = view;
 565                 break;
 566         }
 567
 568         case LFUN_BUFFER_NEW:
 569                 if (d->views_.empty()
 570                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 571                         createView(QString(), false); // keep hidden
 572                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 573                         current_view_->show();
 574                         setActiveWindow(current_view_);
 575                 } else {
 576                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 577                 }
 578                 break;
 579
 580         case LFUN_BUFFER_NEW_TEMPLATE:
 581                 if (d->views_.empty()
 582                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 583                         createView();
 584                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 585                         if (!current_view_->buffer())
 586                                 current_view_->close();
 587                 } else {
 588                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 589                 }
 590                 break;
 591
 592         case LFUN_FILE_OPEN:
 593                 if (d->views_.empty()
 594                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 595                         createView();
 596                         current_view_->openDocument(to_utf8(cmd.argument()));
 597                         if (!current_view_->buffer())
 598                                 current_view_->close();
 599                 } else
 600                         current_view_->openDocument(to_utf8(cmd.argument()));
 601                 break;
 602
 603         case LFUN_SET_COLOR: {
 604                 string lyx_name;
 605                 string const x11_name = split(to_utf8(cmd.argument()), lyx_name, ' ');
 606                 if (lyx_name.empty() || x11_name.empty()) {
 607                         current_view_->message(
 608                                 _("Syntax: set-color <lyx_name> <x11_name>"));
 609                         break;
 610                 }
 611
 612                 string const graphicsbg = lcolor.getLyXName(Color_graphicsbg);
 613                 bool const graphicsbg_changed = lyx_name == graphicsbg
 614                         && x11_name != graphicsbg;
 615                 if (graphicsbg_changed) {
 616                         // FIXME: The graphics cache no longer has a changeDisplay method.
 617 #if 0
 618                         graphics::GCache::get().changeDisplay(true);
 619 #endif
 620                 }
 621
 622                 if (!lcolor.setColor(lyx_name, x11_name)) {
 623                         current_view_->message(
 624                                         bformat(_("Set-color \"%1$s\" failed "
 625                                                                "- color is undefined or "
 626                                                                "may not be redefined"),
 627                                                                    from_utf8(lyx_name)));
 628                         break;
 629                 }
 630                 // Make sure we don't keep old colors in cache.
 631                 d->color_cache_.clear();
 632                 break;
 633         }
 634
 635         default:
 636                 // Notify the caller that the action has not been dispatched.
 637                 return false;
 638         }
 639
 640         // The action has been dispatched.
 641         return true;
 642 }
 643
 644
 645 void GuiApplication::resetGui()
 646 {
 647         QHash<int, GuiView *>::iterator it;
 648         for (it = d->views_.begin(); it != d->views_.end(); ++it)
 649                 (*it)->resetDialogs();
 650
 651         dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
 652 }
 653
 654
 655 void GuiApplication::createView(QString const & geometry_arg, bool autoShow)
 656 {
 657         // release the keyboard which might have been grabed by the global
 658         // menubar on Mac to catch shortcuts even without any GuiView.
 659         if (d->global_menubar_)
 660                 d->global_menubar_->releaseKeyboard();
 661
 662         // create new view
 663         int id = 0;
 664         while (d->views_.find(id) != d->views_.end())
 665                 id++;
 666         GuiView * view = new GuiView(id);
 667
 668         // copy the icon size from old view
 669         if (current_view_)
 670                 view->setIconSize(current_view_->iconSize());
 671
 672         // register view
 673         d->views_[id] = view;
 674
 675         if (autoShow) {
 676                 view->show();
 677                 setActiveWindow(view);
 678         }
 679
 680         if (!geometry_arg.isEmpty()) {
 681 #ifdef Q_WS_WIN
 682                 int x, y;
 683                 int w, h;
 684                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 685                 re.indexIn(geometry_arg);
 686                 w = re.cap(1).toInt();
 687                 h = re.cap(2).toInt();
 688                 x = re.cap(3).toInt();
 689                 y = re.cap(4).toInt();
 690                 view->setGeometry(x, y, w, h);
 691 #endif
 692         }
 693         view->setFocus();
 694         setCurrentView(view);
 695 }
 696
 697
 698 Clipboard & GuiApplication::clipboard()
 699 {
 700         return d->clipboard_;
 701 }
 702
 703
 704 Selection & GuiApplication::selection()
 705 {
 706         return d->selection_;
 707 }
 708
 709
 710 FontLoader & GuiApplication::fontLoader()
 711 {
 712         return d->font_loader_;
 713 }
 714
 715
 716 Menus const & GuiApplication::menus() const
 717 {
 718         return d->menus_;
 719 }
 720
 721
 722 Menus & GuiApplication::menus()
 723 {
 724         return d->menus_;
 725 }
 726
 727
 728 QList<int> GuiApplication::viewIds() const
 729 {
 730         return d->views_.keys();
 731 }
 732
 733
 734 ColorCache & GuiApplication::colorCache()
 735 {
 736         return d->color_cache_;
 737 }
 738
 739
 740 int GuiApplication::exec()
 741 {
 742         QTimer::singleShot(1, this, SLOT(execBatchCommands()));
 743         return QApplication::exec();
 744 }
 745
 746
 747 void GuiApplication::exit(int status)
 748 {
 749         QApplication::exit(status);
 750 }
 751
 752
 753 void GuiApplication::execBatchCommands()
 754 {
 755         // Read menus
 756         if (!readUIFile(toqstr(lyxrc.ui_file)))
 757                 // Gives some error box here.
 758                 return;
 759
 760         // init the global menubar on Mac. This must be done after the session
 761         // was recovered to know the "last files".
 762         if (d->global_menubar_)
 763                 d->menus_.fillMenuBar(d->global_menubar_, 0, true);
 764
 765         LyX::ref().execBatchCommands();
 766 }
 767
 768 QAbstractItemModel * GuiApplication::languageModel()
 769 {
 770         if (d->language_model_)
 771                 return d->language_model_;
 772
 773         QStandardItemModel * lang_model = new QStandardItemModel(this);
 774         lang_model->insertColumns(0, 1);
 775         int current_row;
 776         Languages::const_iterator it = languages.begin();
 777         Languages::const_iterator end = languages.end();
 778         for (; it != end; ++it) {
 779                 current_row = lang_model->rowCount();
 780                 lang_model->insertRows(current_row, 1);
 781                 QModelIndex item = lang_model->index(current_row, 0);
 782                 lang_model->setData(item, qt_(it->second.display()), Qt::DisplayRole);
 783                 lang_model->setData(item, toqstr(it->second.lang()), Qt::UserRole);
 784         }
 785         d->language_model_ = new QSortFilterProxyModel(this);
 786         d->language_model_->setSourceModel(lang_model);
 787 #if QT_VERSION >= 0x040300
 788         d->language_model_->setSortLocaleAware(true);
 789 #endif
 790         return d->language_model_;
 791 }
 792
 793
 794 void GuiApplication::restoreGuiSession()
 795 {
 796         if (!lyxrc.load_session)
 797                 return;
 798
 799         Session & session = LyX::ref().session();
 800         vector<FileName> const & lastopened = session.lastOpened().getfiles();
 801         // do not add to the lastfile list since these files are restored from
 802         // last session, and should be already there (regular files), or should
 803         // not be added at all (help files).
 804         for_each(lastopened.begin(), lastopened.end(),
 805                 bind(&GuiView::loadDocument, current_view_, _1, false));
 806
 807         // clear this list to save a few bytes of RAM
 808         session.lastOpened().clear();
 809 }
 810
 811
 812 QString const GuiApplication::romanFontName()
 813 {
 814         QFont font;
 815         font.setKerning(false);
 816         font.setStyleHint(QFont::Serif);
 817         font.setFamily("serif");
 818
 819         return QFontInfo(font).family();
 820 }
 821
 822
 823 QString const GuiApplication::sansFontName()
 824 {
 825         QFont font;
 826         font.setKerning(false);
 827         font.setStyleHint(QFont::SansSerif);
 828         font.setFamily("sans");
 829
 830         return QFontInfo(font).family();
 831 }
 832
 833
 834 QString const GuiApplication::typewriterFontName()
 835 {
 836         QFont font;
 837         font.setKerning(false);
 838         font.setStyleHint(QFont::TypeWriter);
 839         font.setFamily("monospace");
 840
 841         return QFontInfo(font).family();
 842 }
 843
 844
 845 void GuiApplication::handleRegularEvents()
 846 {
 847         ForkedCallsController::handleCompletedProcesses();
 848 }
 849
 850
 851 bool GuiApplication::event(QEvent * e)
 852 {
 853         switch(e->type()) {
 854         case QEvent::FileOpen: {
 855                 // Open a file; this happens only on Mac OS X for now
 856                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
 857
 858                 if (!current_view_ || !current_view_->view())
 859                         // The application is not properly initialized yet.
 860                         // So we acknowledge the event and delay the file opening
 861                         // until LyX is ready.
 862                         // FIXME UNICODE: FileName accept an utf8 encoded string.
 863                         LyX::ref().addFileToLoad(fromqstr(foe->file()));
 864                 else
 865                         lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
 866                                 qstring_to_ucs4(foe->file())));
 867
 868                 e->accept();
 869                 return true;
 870         }
 871         default:
 872                 return QApplication::event(e);
 873         }
 874 }
 875
 876
 877 bool GuiApplication::notify(QObject * receiver, QEvent * event)
 878 {
 879         try {
 880                 return QApplication::notify(receiver, event);
 881         }
 882         catch (ExceptionMessage const & e) {
 883                 switch(e.type_) {
 884                 case ErrorException:
 885                         LyX::cref().emergencyCleanup();
 886                         setQuitOnLastWindowClosed(false);
 887                         closeAllViews();
 888                         Alert::error(e.title_, e.details_);
 889 #ifndef NDEBUG
 890                         // Properly crash in debug mode in order to get a useful backtrace.
 891                         abort();
 892 #endif
 893                         // In release mode, try to exit gracefully.
 894                         this->exit(1);
 895
 896                 case BufferException: {
 897                         Buffer * buf = current_view_->buffer();
 898                         docstring details = e.details_ + '\n';
 899                         details += theBufferList().emergencyWrite(buf);
 900                         theBufferList().release(buf);
 901                         details += "\n" + _("The current document was closed.");
 902                         Alert::error(e.title_, details);
 903                         return false;
 904                 }
 905                 case WarningException:
 906                         Alert::warning(e.title_, e.details_);
 907                         return false;
 908                 }
 909         }
 910         catch (exception const & e) {
 911                 docstring s = _("LyX has caught an exception, it will now "
 912                         "attempt to save all unsaved documents and exit."
 913                         "\n\nException: ");
 914                 s += from_ascii(e.what());
 915                 Alert::error(_("Software exception Detected"), s);
 916                 LyX::cref().exit(1);
 917         }
 918         catch (...) {
 919                 docstring s = _("LyX has caught some really weird exception, it will "
 920                         "now attempt to save all unsaved documents and exit.");
 921                 Alert::error(_("Software exception Detected"), s);
 922                 LyX::cref().exit(1);
 923         }
 924
 925         return false;
 926 }
 927
 928
 929 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
 930 {
 931         QColor const & qcol = d->color_cache_.get(col);
 932         if (!qcol.isValid()) {
 933                 rgbcol.r = 0;
 934                 rgbcol.g = 0;
 935                 rgbcol.b = 0;
 936                 return false;
 937         }
 938         rgbcol.r = qcol.red();
 939         rgbcol.g = qcol.green();
 940         rgbcol.b = qcol.blue();
 941         return true;
 942 }
 943
 944
 945 string const GuiApplication::hexName(ColorCode col)
 946 {
 947         return ltrim(fromqstr(d->color_cache_.get(col).name()), "#");
 948 }
 949
 950
 951 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
 952 {
 953         SocketNotifier * sn = new SocketNotifier(this, fd, func);
 954         d->socket_notifiers_[fd] = sn;
 955         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
 956 }
 957
 958
 959 void GuiApplication::socketDataReceived(int fd)
 960 {
 961         d->socket_notifiers_[fd]->func_();
 962 }
 963
 964
 965 void GuiApplication::unregisterSocketCallback(int fd)
 966 {
 967         d->socket_notifiers_.take(fd)->setEnabled(false);
 968 }
 969
 970
 971 void GuiApplication::commitData(QSessionManager & sm)
 972 {
 973         /// The implementation is required to avoid an application exit
 974         /// when session state save is triggered by session manager.
 975         /// The default implementation sends a close event to all
 976         /// visible top level widgets when session managment allows
 977         /// interaction.
 978         /// We are changing that to close all wiew one by one.
 979         /// FIXME: verify if the default implementation is enough now.
 980         if (sm.allowsInteraction() && !closeAllViews())
 981                 sm.cancel();
 982 }
 983
 984
 985 void GuiApplication::unregisterView(GuiView * gv)
 986 {
 987         LASSERT(d->views_[gv->id()] == gv, /**/);
 988         d->views_.remove(gv->id());
 989         if (current_view_ == gv) {
 990                 current_view_ = 0;
 991                 theLyXFunc().setLyXView(0);
 992         }
 993 }
 994
 995
 996 bool GuiApplication::closeAllViews()
 997 {
 998         if (d->views_.empty())
 999                 return true;
1000
1001         QList<GuiView *> views = d->views_.values();
1002         foreach (GuiView * view, views) {
1003                 if (!view->close())
1004                         return false;
1005         }
1006
1007         d->views_.clear();
1008         return true;
1009 }
1010
1011
1012 GuiView & GuiApplication::view(int id) const
1013 {
1014         LASSERT(d->views_.contains(id), /**/);
1015         return *d->views_.value(id);
1016 }
1017
1018
1019 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
1020 {
1021         QList<GuiView *> views = d->views_.values();
1022         foreach (GuiView * view, views)
1023                 view->hideDialog(name, inset);
1024 }
1025
1026
1027 Buffer const * GuiApplication::updateInset(Inset const * inset) const
1028 {
1029         Buffer const * buffer_ = 0;
1030         QHash<int, GuiView *>::iterator end = d->views_.end();
1031         for (QHash<int, GuiView *>::iterator it = d->views_.begin(); it != end; ++it) {
1032                 if (Buffer const * ptr = (*it)->updateInset(inset))
1033                         buffer_ = ptr;
1034         }
1035         return buffer_;
1036 }
1037
1038
1039 bool GuiApplication::searchMenu(FuncRequest const & func,
1040         docstring_list & names) const
1041 {
1042         return d->menus_.searchMenu(func, names);
1043 }
1044
1045
1046 bool GuiApplication::readUIFile(QString const & name, bool include)
1047 {
1048         enum {
1049                 ui_menuset = 1,
1050                 ui_toolbars,
1051                 ui_toolbarset,
1052                 ui_include,
1053                 ui_last
1054         };
1055
1056         LexerKeyword uitags[] = {
1057                 { "include", ui_include },
1058                 { "menuset", ui_menuset },
1059                 { "toolbars", ui_toolbars },
1060                 { "toolbarset", ui_toolbarset }
1061         };
1062
1063         // Ensure that a file is read only once (prevents include loops)
1064         static QStringList uifiles;
1065         if (uifiles.contains(name)) {
1066                 LYXERR(Debug::INIT, "UI file '" << name << "' has been read already. "
1067                                     << "Is this an include loop?");
1068                 return false;
1069         }
1070
1071         LYXERR(Debug::INIT, "About to read " << name << "...");
1072
1073         FileName ui_path;
1074         if (include) {
1075                 ui_path = libFileSearch("ui", name, "inc");
1076                 if (ui_path.empty())
1077                         ui_path = libFileSearch("ui", changeExtension(name, "inc"));
1078         } else {
1079                 ui_path = libFileSearch("ui", name, "ui");
1080         }
1081
1082         if (ui_path.empty()) {
1083                 LYXERR(Debug::INIT, "Could not find " << name);
1084                 Alert::warning(_("Could not find UI defintion file"),
1085                                bformat(_("Error while reading the configuration file\n%1$s.\n"
1086                                    "Please check your installation."), qstring_to_ucs4(name)));
1087                 return false;
1088         }
1089
1090         uifiles.push_back(name);
1091
1092         LYXERR(Debug::INIT, "Found " << name << " in " << ui_path);
1093         Lexer lex(uitags);
1094         lex.setFile(ui_path);
1095         if (!lex.isOK()) {
1096                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
1097                        << endl;
1098         }
1099
1100         if (lyxerr.debugging(Debug::PARSER))
1101                 lex.printTable(lyxerr);
1102
1103         while (lex.isOK()) {
1104                 switch (lex.lex()) {
1105                 case ui_include: {
1106                         lex.next(true);
1107                         QString const file = toqstr(lex.getString());
1108                         if (!readUIFile(file, true))
1109                                 return false;
1110                         break;
1111                 }
1112                 case ui_menuset:
1113                         d->menus_.read(lex);
1114                         break;
1115
1116                 case ui_toolbarset:
1117                         toolbarbackend.readToolbars(lex);
1118                         break;
1119
1120                 case ui_toolbars:
1121                         toolbarbackend.readToolbarSettings(lex);
1122                         break;
1123
1124                 default:
1125                         if (!rtrim(lex.getString()).empty())
1126                                 lex.printError("LyX::ReadUIFile: "
1127                                                "Unknown menu tag: `$$Token'");
1128                         break;
1129                 }
1130         }
1131         return true;
1132 }
1133
1134
1135 void GuiApplication::onLastWindowClosed()
1136 {
1137         if (d->global_menubar_)
1138                 d->global_menubar_->grabKeyboard();
1139 }
1140
1141
1142 ////////////////////////////////////////////////////////////////////////
1143 //
1144 // X11 specific stuff goes here...
1145
1146 #ifdef Q_WS_X11
1147 bool GuiApplication::x11EventFilter(XEvent * xev)
1148 {
1149         if (!current_view_)
1150                 return false;
1151
1152         switch (xev->type) {
1153         case SelectionRequest: {
1154                 if (xev->xselectionrequest.selection != XA_PRIMARY)
1155                         break;
1156                 LYXERR(Debug::GUI, "X requested selection.");
1157                 BufferView * bv = current_view_->view();
1158                 if (bv) {
1159                         docstring const sel = bv->requestSelection();
1160                         if (!sel.empty())
1161                                 d->selection_.put(sel);
1162                 }
1163                 break;
1164         }
1165         case SelectionClear: {
1166                 if (xev->xselectionclear.selection != XA_PRIMARY)
1167                         break;
1168                 LYXERR(Debug::GUI, "Lost selection.");
1169                 BufferView * bv = current_view_->view();
1170                 if (bv)
1171                         bv->clearSelection();
1172                 break;
1173         }
1174         }
1175         return false;
1176 }
1177 #endif
1178
1179 } // namespace frontend
1180
1181
1182 void hideDialogs(std::string const & name, Inset * inset)
1183 {
1184         if (theApp())
1185                 theApp()->hideDialogs(name, inset);
1186 }
1187
1188
1189 ////////////////////////////////////////////////////////////////////
1190 //
1191 // Font stuff
1192 //
1193 ////////////////////////////////////////////////////////////////////
1194
1195 frontend::FontLoader & theFontLoader()
1196 {
1197         LASSERT(frontend::guiApp, /**/);
1198         return frontend::guiApp->fontLoader();
1199 }
1200
1201
1202 frontend::FontMetrics const & theFontMetrics(Font const & f)
1203 {
1204         return theFontMetrics(f.fontInfo());
1205 }
1206
1207
1208 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
1209 {
1210         LASSERT(frontend::guiApp, /**/);
1211         return frontend::guiApp->fontLoader().metrics(f);
1212 }
1213
1214
1215 ////////////////////////////////////////////////////////////////////
1216 //
1217 // Misc stuff
1218 //
1219 ////////////////////////////////////////////////////////////////////
1220
1221 frontend::Clipboard & theClipboard()
1222 {
1223         LASSERT(frontend::guiApp, /**/);
1224         return frontend::guiApp->clipboard();
1225 }
1226
1227
1228 frontend::Selection & theSelection()
1229 {
1230         LASSERT(frontend::guiApp, /**/);
1231         return frontend::guiApp->selection();
1232 }
1233
1234 } // namespace lyx
1235
1236 #include "GuiApplication_moc.cpp"