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