src/frontends/qt4/GuiView.cpp

   1 /**
   2  * \file GuiView.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  * \author Peter Kümmel
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiView.h"
  17
  18 #include "Dialog.h"
  19 #include "FileDialog.h"
  20 #include "FontLoader.h"
  21 #include "GuiApplication.h"
  22 #include "GuiCommandBuffer.h"
  23 #include "GuiCompleter.h"
  24 #include "GuiWorkArea.h"
  25 #include "GuiKeySymbol.h"
  26 #include "GuiToc.h"
  27 #include "GuiToolbar.h"
  28 #include "LayoutBox.h"
  29 #include "Menus.h"
  30 #include "TocModel.h"
  31
  32 #include "qt_helpers.h"
  33
  34 #include "frontends/alert.h"
  35
  36 #include "buffer_funcs.h"
  37 #include "Buffer.h"
  38 #include "BufferList.h"
  39 #include "BufferParams.h"
  40 #include "BufferView.h"
  41 #include "Converter.h"
  42 #include "Cursor.h"
  43 #include "CutAndPaste.h"
  44 #include "Encoding.h"
  45 #include "ErrorList.h"
  46 #include "Format.h"
  47 #include "FuncStatus.h"
  48 #include "FuncRequest.h"
  49 #include "Intl.h"
  50 #include "Layout.h"
  51 #include "Lexer.h"
  52 #include "LyXAction.h"
  53 #include "LyXFunc.h"
  54 #include "LyX.h"
  55 #include "LyXRC.h"
  56 #include "LyXVC.h"
  57 #include "Paragraph.h"
  58 #include "SpellChecker.h"
  59 #include "TextClass.h"
  60 #include "Text.h"
  61 #include "Toolbars.h"
  62 #include "version.h"
  63
  64 #include "support/convert.h"
  65 #include "support/debug.h"
  66 #include "support/ExceptionMessage.h"
  67 #include "support/FileName.h"
  68 #include "support/filetools.h"
  69 #include "support/gettext.h"
  70 #include "support/filetools.h"
  71 #include "support/ForkedCalls.h"
  72 #include "support/lassert.h"
  73 #include "support/lstrings.h"
  74 #include "support/os.h"
  75 #include "support/Package.h"
  76 #include "support/Path.h"
  77 #include "support/Systemcall.h"
  78 #include "support/Timeout.h"
  79
  80 #include <QAction>
  81 #include <QApplication>
  82 #include <QCloseEvent>
  83 #include <QDebug>
  84 #include <QDesktopWidget>
  85 #include <QDragEnterEvent>
  86 #include <QDropEvent>
  87 #include <QList>
  88 #include <QMenu>
  89 #include <QMenuBar>
  90 #include <QPainter>
  91 #include <QPixmap>
  92 #include <QPixmapCache>
  93 #include <QPoint>
  94 #include <QPushButton>
  95 #include <QSettings>
  96 #include <QShowEvent>
  97 #include <QSplitter>
  98 #include <QStackedWidget>
  99 #include <QStatusBar>
 100 #include <QTimer>
 101 #include <QToolBar>
 102 #include <QUrl>
 103 #include <QScrollBar>
 104
 105 #include <boost/bind.hpp>
 106
 107 #include <sstream>
 108
 109 #ifdef HAVE_SYS_TIME_H
 110 # include <sys/time.h>
 111 #endif
 112 #ifdef HAVE_UNISTD_H
 113 # include <unistd.h>
 114 #endif
 115
 116 using namespace std;
 117 using namespace lyx::support;
 118
 119 namespace lyx {
 120 namespace frontend {
 121
 122 namespace {
 123
 124 class BackgroundWidget : public QWidget
 125 {
 126 public:
 127         BackgroundWidget()
 128         {
 129                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 130                 /// The text to be written on top of the pixmap
 131                 QString const text = lyx_version ?
 132                         qt_("version ") + lyx_version : qt_("unknown version");
 133                 splash_ = getPixmap("images/", "banner", "png");
 134
 135                 QPainter pain(&splash_);
 136                 pain.setPen(QColor(0, 0, 0));
 137                 QFont font;
 138                 // The font used to display the version info
 139                 font.setStyleHint(QFont::SansSerif);
 140                 font.setWeight(QFont::Bold);
 141                 font.setPointSize(int(toqstr(lyxrc.font_sizes[FONT_SIZE_LARGE]).toDouble()));
 142                 pain.setFont(font);
 143                 pain.drawText(260, 15, text);
 144         }
 145
 146         void paintEvent(QPaintEvent *)
 147         {
 148                 int x = (width() - splash_.width()) / 2;
 149                 int y = (height() - splash_.height()) / 2;
 150                 QPainter pain(this);
 151                 pain.drawPixmap(x, y, splash_);
 152         }
 153
 154 private:
 155         QPixmap splash_;
 156 };
 157
 158
 159 /// Toolbar store providing access to individual toolbars by name.
 160 typedef std::map<std::string, GuiToolbar *> ToolbarMap;
 161
 162 typedef boost::shared_ptr<Dialog> DialogPtr;
 163
 164 } // namespace anon
 165
 166
 167 struct GuiView::GuiViewPrivate
 168 {
 169         GuiViewPrivate()
 170                 : current_work_area_(0), current_main_work_area_(0),
 171                 layout_(0), autosave_timeout_(5000),
 172                 in_show_(false)
 173         {
 174                 // hardcode here the platform specific icon size
 175                 smallIconSize = 14;  // scaling problems
 176                 normalIconSize = 20; // ok, default
 177                 bigIconSize = 26;    // better for some math icons
 178
 179                 splitter_ = new QSplitter;
 180                 bg_widget_ = new BackgroundWidget;
 181                 stack_widget_ = new QStackedWidget;
 182                 stack_widget_->addWidget(bg_widget_);
 183                 stack_widget_->addWidget(splitter_);
 184                 setBackground();
 185         }
 186
 187         ~GuiViewPrivate()
 188         {
 189                 delete splitter_;
 190                 delete bg_widget_;
 191                 delete stack_widget_;
 192         }
 193
 194         QMenu * toolBarPopup(GuiView * parent)
 195         {
 196                 // FIXME: translation
 197                 QMenu * menu = new QMenu(parent);
 198                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 199
 200                 QAction * smallIcons = new QAction(iconSizeGroup);
 201                 smallIcons->setText(qt_("Small-sized icons"));
 202                 smallIcons->setCheckable(true);
 203                 QObject::connect(smallIcons, SIGNAL(triggered()),
 204                         parent, SLOT(smallSizedIcons()));
 205                 menu->addAction(smallIcons);
 206
 207                 QAction * normalIcons = new QAction(iconSizeGroup);
 208                 normalIcons->setText(qt_("Normal-sized icons"));
 209                 normalIcons->setCheckable(true);
 210                 QObject::connect(normalIcons, SIGNAL(triggered()),
 211                         parent, SLOT(normalSizedIcons()));
 212                 menu->addAction(normalIcons);
 213
 214                 QAction * bigIcons = new QAction(iconSizeGroup);
 215                 bigIcons->setText(qt_("Big-sized icons"));
 216                 bigIcons->setCheckable(true);
 217                 QObject::connect(bigIcons, SIGNAL(triggered()),
 218                         parent, SLOT(bigSizedIcons()));
 219                 menu->addAction(bigIcons);
 220
 221                 unsigned int cur = parent->iconSize().width();
 222                 if ( cur == parent->d.smallIconSize)
 223                         smallIcons->setChecked(true);
 224                 else if (cur == parent->d.normalIconSize)
 225                         normalIcons->setChecked(true);
 226                 else if (cur == parent->d.bigIconSize)
 227                         bigIcons->setChecked(true);
 228
 229                 return menu;
 230         }
 231
 232         void setBackground()
 233         {
 234                 stack_widget_->setCurrentWidget(bg_widget_);
 235                 bg_widget_->setUpdatesEnabled(true);
 236         }
 237
 238         TabWorkArea * tabWorkArea(int i)
 239         {
 240                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 241         }
 242
 243         TabWorkArea * currentTabWorkArea()
 244         {
 245                 if (splitter_->count() == 1)
 246                         // The first TabWorkArea is always the first one, if any.
 247                         return tabWorkArea(0);
 248
 249                 for (int i = 0; i != splitter_->count(); ++i) {
 250                         TabWorkArea * twa = tabWorkArea(i);
 251                         if (current_main_work_area_ == twa->currentWorkArea())
 252                                 return twa;
 253                 }
 254
 255                 // None has the focus so we just take the first one.
 256                 return tabWorkArea(0);
 257         }
 258
 259 public:
 260         GuiWorkArea * current_work_area_;
 261         GuiWorkArea * current_main_work_area_;
 262         QSplitter * splitter_;
 263         QStackedWidget * stack_widget_;
 264         BackgroundWidget * bg_widget_;
 265         /// view's toolbars
 266         ToolbarMap toolbars_;
 267         /// The main layout box.
 268         /**
 269          * \warning Don't Delete! The layout box is actually owned by
 270          * whichever toolbar contains it. All the GuiView class needs is a
 271          * means of accessing it.
 272          *
 273          * FIXME: replace that with a proper model so that we are not limited
 274          * to only one dialog.
 275          */
 276         LayoutBox * layout_;
 277
 278         ///
 279         map<string, DialogPtr> dialogs_;
 280
 281         unsigned int smallIconSize;
 282         unsigned int normalIconSize;
 283         unsigned int bigIconSize;
 284         ///
 285         QTimer statusbar_timer_;
 286         /// auto-saving of buffers
 287         Timeout autosave_timeout_;
 288         /// flag against a race condition due to multiclicks, see bug #1119
 289         bool in_show_;
 290
 291         ///
 292         TocModels toc_models_;
 293 };
 294
 295
 296 GuiView::GuiView(int id)
 297         : d(*new GuiViewPrivate), id_(id), closing_(false)
 298 {
 299         // GuiToolbars *must* be initialised before the menu bar.
 300         normalSizedIcons(); // at least on Mac the default is 32 otherwise, which is huge
 301         constructToolbars();
 302
 303         // set ourself as the current view. This is needed for the menu bar
 304         // filling, at least for the static special menu item on Mac. Otherwise
 305         // they are greyed out.
 306         guiApp->setCurrentView(this);
 307
 308         // Fill up the menu bar.
 309         guiApp->menus().fillMenuBar(menuBar(), this, true);
 310
 311         setCentralWidget(d.stack_widget_);
 312
 313         // Start autosave timer
 314         if (lyxrc.autosave) {
 315                 d.autosave_timeout_.timeout.connect(boost::bind(&GuiView::autoSave, this));
 316                 d.autosave_timeout_.setTimeout(lyxrc.autosave * 1000);
 317                 d.autosave_timeout_.start();
 318         }
 319         connect(&d.statusbar_timer_, SIGNAL(timeout()),
 320                 this, SLOT(clearMessage()));
 321
 322         // We don't want to keep the window in memory if it is closed.
 323         setAttribute(Qt::WA_DeleteOnClose, true);
 324
 325 #if (!defined(Q_WS_WIN) && !defined(Q_WS_MACX))
 326         // assign an icon to main form. We do not do it under Qt/Win or Qt/Mac,
 327         // since the icon is provided in the application bundle.
 328         setWindowIcon(getPixmap("images/", "lyx", "png"));
 329 #endif
 330
 331         // For Drag&Drop.
 332         setAcceptDrops(true);
 333
 334         statusBar()->setSizeGripEnabled(true);
 335
 336         // Forbid too small unresizable window because it can happen
 337         // with some window manager under X11.
 338         setMinimumSize(300, 200);
 339
 340         if (lyxrc.allow_geometry_session) {
 341                 // Now take care of session management.
 342                 if (restoreLayout())
 343                         return;
 344         }
 345
 346         // no session handling, default to a sane size.
 347         setGeometry(50, 50, 690, 510);
 348         initToolbars();
 349
 350         // clear session data if any.
 351         QSettings settings;
 352         settings.remove("views");
 353 }
 354
 355
 356 GuiView::~GuiView()
 357 {
 358         delete &d;
 359 }
 360
 361
 362 void GuiView::saveLayout() const
 363 {
 364         QSettings settings;
 365         settings.beginGroup("views");
 366         settings.beginGroup(QString::number(id_));
 367 #ifdef Q_WS_X11
 368         settings.setValue("pos", pos());
 369         settings.setValue("size", size());
 370 #else
 371         settings.setValue("geometry", saveGeometry());
 372 #endif
 373         settings.setValue("layout", saveState(0));
 374         settings.setValue("icon_size", iconSize());
 375 }
 376
 377
 378 bool GuiView::restoreLayout()
 379 {
 380         QSettings settings;
 381         settings.beginGroup("views");
 382         settings.beginGroup(QString::number(id_));
 383         QString const icon_key = "icon_size";
 384         if (!settings.contains(icon_key))
 385                 return false;
 386
 387         //code below is skipped when when ~/.config/LyX is (re)created
 388         setIconSize(settings.value(icon_key).toSize());
 389 #ifdef Q_WS_X11
 390         QPoint pos = settings.value("pos", QPoint(50, 50)).toPoint();
 391         QSize size = settings.value("size", QSize(690, 510)).toSize();
 392         resize(size);
 393         move(pos);
 394 #else
 395         // Work-around for bug #6034: the window ends up in an undetermined
 396         // state when trying to restore a maximized window when it is
 397         // already maximized.
 398         if (!(windowState() & Qt::WindowMaximized))
 399                 if (!restoreGeometry(settings.value("geometry").toByteArray()))
 400                         setGeometry(50, 50, 690, 510);
 401 #endif
 402         // Make sure layout is correctly oriented.
 403         setLayoutDirection(qApp->layoutDirection());
 404
 405         // Allow the toc and view-source dock widget to be restored if needed.
 406         Dialog * dialog;
 407         if ((dialog = findOrBuild("toc", true)))
 408                 // see bug 5082. At least setup title and enabled state.
 409                 // Visibility will be adjusted by restoreState below.
 410                 dialog->prepareView();
 411         if ((dialog = findOrBuild("view-source", true)))
 412                 dialog->prepareView();
 413
 414         if (!restoreState(settings.value("layout").toByteArray(), 0))
 415                 initToolbars();
 416         updateDialogs();
 417         return true;
 418 }
 419
 420
 421 GuiToolbar * GuiView::toolbar(string const & name)
 422 {
 423         ToolbarMap::iterator it = d.toolbars_.find(name);
 424         if (it != d.toolbars_.end())
 425                 return it->second;
 426
 427         LYXERR(Debug::GUI, "Toolbar::display: no toolbar named " << name);
 428         message(bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name)));
 429         return 0;
 430 }
 431
 432
 433 void GuiView::constructToolbars()
 434 {
 435         ToolbarMap::iterator it = d.toolbars_.begin();
 436         for (; it != d.toolbars_.end(); ++it)
 437                 delete it->second;
 438         d.toolbars_.clear();
 439
 440         // I don't like doing this here, but the standard toolbar
 441         // destroys this object when it's destroyed itself (vfr)
 442         d.layout_ = new LayoutBox(*this);
 443         d.stack_widget_->addWidget(d.layout_);
 444         d.layout_->move(0,0);
 445
 446         // extracts the toolbars from the backend
 447         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 448         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 449         for (; cit != end; ++cit)
 450                 d.toolbars_[cit->name] =  new GuiToolbar(*cit, *this);
 451 }
 452
 453
 454 void GuiView::initToolbars()
 455 {
 456         // extracts the toolbars from the backend
 457         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 458         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 459         for (; cit != end; ++cit) {
 460                 GuiToolbar * tb = toolbar(cit->name);
 461                 if (!tb)
 462                         continue;
 463                 int const visibility = guiApp->toolbars().defaultVisibility(cit->name);
 464                 bool newline = true;
 465                 tb->setVisible(false);
 466                 tb->setVisibility(visibility);
 467
 468                 if (visibility & Toolbars::TOP) {
 469                         if (newline)
 470                                 addToolBarBreak(Qt::TopToolBarArea);
 471                         addToolBar(Qt::TopToolBarArea, tb);
 472                 }
 473
 474                 if (visibility & Toolbars::BOTTOM) {
 475                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 476 #if (QT_VERSION >= 0x040202)
 477                         addToolBarBreak(Qt::BottomToolBarArea);
 478 #endif
 479                         addToolBar(Qt::BottomToolBarArea, tb);
 480                 }
 481
 482                 if (visibility & Toolbars::LEFT) {
 483                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 484 #if (QT_VERSION >= 0x040202)
 485                         addToolBarBreak(Qt::LeftToolBarArea);
 486 #endif
 487                         addToolBar(Qt::LeftToolBarArea, tb);
 488                 }
 489
 490                 if (visibility & Toolbars::RIGHT) {
 491                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 492 #if (QT_VERSION >= 0x040202)
 493                         addToolBarBreak(Qt::RightToolBarArea);
 494 #endif
 495                         addToolBar(Qt::RightToolBarArea, tb);
 496                 }
 497
 498                 if (visibility & Toolbars::ON)
 499                         tb->setVisible(true);
 500         }
 501 }
 502
 503
 504 TocModels & GuiView::tocModels()
 505 {
 506         return d.toc_models_;
 507 }
 508
 509
 510 void GuiView::setFocus()
 511 {
 512         LYXERR(Debug::DEBUG, "GuiView::setFocus()" << this);
 513         // Make sure LyXFunc points to the correct view.
 514         guiApp->setCurrentView(this);
 515         QMainWindow::setFocus();
 516         if (d.current_work_area_)
 517                 d.current_work_area_->setFocus();
 518 }
 519
 520
 521 QMenu * GuiView::createPopupMenu()
 522 {
 523         return d.toolBarPopup(this);
 524 }
 525
 526
 527 void GuiView::showEvent(QShowEvent * e)
 528 {
 529         LYXERR(Debug::GUI, "Passed Geometry "
 530                 << size().height() << "x" << size().width()
 531                 << "+" << pos().x() << "+" << pos().y());
 532
 533         if (d.splitter_->count() == 0)
 534                 // No work area, switch to the background widget.
 535                 d.setBackground();
 536
 537         QMainWindow::showEvent(e);
 538 }
 539
 540
 541 /** Destroy only all tabbed WorkAreas. Destruction of other WorkAreas
 542  ** is responsibility of the container (e.g., dialog)
 543  **/
 544 void GuiView::closeEvent(QCloseEvent * close_event)
 545 {
 546         LYXERR(Debug::DEBUG, "GuiView::closeEvent()");
 547         closing_ = true;
 548
 549         writeSession();
 550
 551         // it can happen that this event arrives without selecting the view,
 552         // e.g. when clicking the close button on a background window.
 553         setFocus();
 554         if (!closeWorkAreaAll()) {
 555                 closing_ = false;
 556                 close_event->ignore();
 557                 return;
 558         }
 559
 560         // Make sure that nothing will use this to be closed View.
 561         guiApp->unregisterView(this);
 562
 563         if (isFullScreen()) {
 564                 // Switch off fullscreen before closing.
 565                 toggleFullScreen();
 566                 updateDialogs();
 567         }
 568
 569         // Make sure the timer time out will not trigger a statusbar update.
 570         d.statusbar_timer_.stop();
 571
 572         // Saving fullscreen requires additional tweaks in the toolbar code.
 573         // It wouldn't also work under linux natively.
 574         if (lyxrc.allow_geometry_session) {
 575                 // Save this window geometry and layout.
 576                 saveLayout();
 577                 // Then the toolbar private states.
 578                 ToolbarMap::iterator end = d.toolbars_.end();
 579                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
 580                         it->second->saveSession();
 581                 // Now take care of all other dialogs:
 582                 map<string, DialogPtr>::const_iterator it = d.dialogs_.begin();
 583                 for (; it!= d.dialogs_.end(); ++it)
 584                         it->second->saveSession();
 585         }
 586
 587         close_event->accept();
 588 }
 589
 590
 591 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 592 {
 593         if (event->mimeData()->hasUrls())
 594                 event->accept();
 595         /// \todo Ask lyx-devel is this is enough:
 596         /// if (event->mimeData()->hasFormat("text/plain"))
 597         ///     event->acceptProposedAction();
 598 }
 599
 600
 601 void GuiView::dropEvent(QDropEvent * event)
 602 {
 603         QList<QUrl> files = event->mimeData()->urls();
 604         if (files.isEmpty())
 605                 return;
 606
 607         LYXERR(Debug::GUI, "GuiView::dropEvent: got URLs!");
 608         for (int i = 0; i != files.size(); ++i) {
 609                 string const file = os::internal_path(fromqstr(
 610                         files.at(i).toLocalFile()));
 611                 if (!file.empty()) {
 612                         // Asynchronously post the event. DropEvent usually come
 613                         // from the BufferView. But reloading a file might close
 614                         // the BufferView from within its own event handler.
 615                         guiApp->dispatchDelayed(FuncRequest(LFUN_FILE_OPEN, file));
 616                         event->accept();
 617                 }
 618         }
 619 }
 620
 621
 622 void GuiView::message(docstring const & str)
 623 {
 624         if (ForkedProcess::iAmAChild())
 625                 return;
 626
 627         statusBar()->showMessage(toqstr(str));
 628         d.statusbar_timer_.stop();
 629         d.statusbar_timer_.start(3000);
 630 }
 631
 632
 633 void GuiView::smallSizedIcons()
 634 {
 635         setIconSize(QSize(d.smallIconSize, d.smallIconSize));
 636 }
 637
 638
 639 void GuiView::normalSizedIcons()
 640 {
 641         setIconSize(QSize(d.normalIconSize, d.normalIconSize));
 642 }
 643
 644
 645 void GuiView::bigSizedIcons()
 646 {
 647         setIconSize(QSize(d.bigIconSize, d.bigIconSize));
 648 }
 649
 650
 651 void GuiView::clearMessage()
 652 {
 653         if (!hasFocus())
 654                 return;
 655         showMessage();
 656         d.statusbar_timer_.stop();
 657 }
 658
 659
 660 void GuiView::updateWindowTitle(GuiWorkArea * wa)
 661 {
 662         if (wa != d.current_work_area_)
 663                 return;
 664         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
 665         setWindowIconText(wa->windowIconText());
 666 }
 667
 668
 669 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
 670 {
 671         disconnectBuffer();
 672         disconnectBufferView();
 673         connectBufferView(wa->bufferView());
 674         connectBuffer(wa->bufferView().buffer());
 675         d.current_work_area_ = wa;
 676         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 677                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
 678         updateWindowTitle(wa);
 679
 680         structureChanged();
 681
 682         // The document settings needs to be reinitialised.
 683         updateDialog("document", "");
 684
 685         // Buffer-dependent dialogs must be updated. This is done here because
 686         // some dialogs require buffer()->text.
 687         updateDialogs();
 688 }
 689
 690
 691 void GuiView::on_lastWorkAreaRemoved()
 692 {
 693         if (closing_)
 694                 // We already are in a close event. Nothing more to do.
 695                 return;
 696
 697         if (d.splitter_->count() > 1)
 698                 // We have a splitter so don't close anything.
 699                 return;
 700
 701         // Reset and updates the dialogs.
 702         d.toc_models_.reset(0);
 703         updateDialog("document", "");
 704         updateDialogs();
 705
 706         resetWindowTitleAndIconText();
 707
 708         if (lyxrc.open_buffers_in_tabs)
 709                 // Nothing more to do, the window should stay open.
 710                 return;
 711
 712         if (guiApp->viewIds().size() > 1) {
 713                 close();
 714                 return;
 715         }
 716
 717 #ifdef Q_WS_MACX
 718         // On Mac we also close the last window because the application stay
 719         // resident in memory. On other platforms we don't close the last
 720         // window because this would quit the application.
 721         close();
 722 #endif
 723 }
 724
 725
 726 void GuiView::updateStatusBar()
 727 {
 728         // let the user see the explicit message
 729         if (d.statusbar_timer_.isActive())
 730                 return;
 731
 732         showMessage();
 733 }
 734
 735
 736 void GuiView::showMessage()
 737 {
 738         QString msg = toqstr(theLyXFunc().viewStatusMessage());
 739         if (msg.isEmpty()) {
 740                 BufferView const * bv = currentBufferView();
 741                 if (bv)
 742                         msg = toqstr(bv->cursor().currentState());
 743                 else
 744                         msg = qt_("Welcome to LyX!");
 745         }
 746         statusBar()->showMessage(msg);
 747 }
 748
 749
 750 bool GuiView::event(QEvent * e)
 751 {
 752         switch (e->type())
 753         {
 754         // Useful debug code:
 755         //case QEvent::ActivationChange:
 756         //case QEvent::WindowDeactivate:
 757         //case QEvent::Paint:
 758         //case QEvent::Enter:
 759         //case QEvent::Leave:
 760         //case QEvent::HoverEnter:
 761         //case QEvent::HoverLeave:
 762         //case QEvent::HoverMove:
 763         //case QEvent::StatusTip:
 764         //case QEvent::DragEnter:
 765         //case QEvent::DragLeave:
 766         //case QEvent::Drop:
 767         //      break;
 768
 769         case QEvent::WindowActivate: {
 770                 GuiView * old_view = guiApp->currentView();
 771                 if (this == old_view) {
 772                         setFocus();
 773                         return QMainWindow::event(e);
 774                 }
 775                 if (old_view && old_view->currentBufferView()) {
 776                         // save current selection to the selection buffer to allow
 777                         // middle-button paste in this window.
 778                         cap::saveSelection(old_view->currentBufferView()->cursor());
 779                 }
 780                 guiApp->setCurrentView(this);
 781                 if (d.current_work_area_) {
 782                         BufferView & bv = d.current_work_area_->bufferView();
 783                         connectBufferView(bv);
 784                         connectBuffer(bv.buffer());
 785                         // The document structure, name and dialogs might have
 786                         // changed in another view.
 787                         structureChanged();
 788                         // The document settings needs to be reinitialised.
 789                         updateDialog("document", "");
 790                         updateDialogs();
 791                 } else {
 792                         resetWindowTitleAndIconText();
 793                 }
 794                 setFocus();
 795                 return QMainWindow::event(e);
 796         }
 797
 798         case QEvent::ShortcutOverride: {
 799
 800 // See bug 4888
 801 #if (!defined Q_WS_X11) || (QT_VERSION >= 0x040500)
 802                 if (isFullScreen() && menuBar()->isHidden()) {
 803                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 804                         // FIXME: we should also try to detect special LyX shortcut such as
 805                         // Alt-P and Alt-M. Right now there is a hack in
 806                         // GuiWorkArea::processKeySym() that hides again the menubar for
 807                         // those cases.
 808                         if (ke->modifiers() & Qt::AltModifier && ke->key() != Qt::Key_Alt) {
 809                                 menuBar()->show();
 810                                 return QMainWindow::event(e);
 811                         }
 812                 }
 813 #endif
 814
 815                 if (d.current_work_area_)
 816                         // Nothing special to do.
 817                         return QMainWindow::event(e);
 818
 819                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 820                 // Let Qt handle menu access and the Tab keys to navigate keys to navigate
 821                 // between controls.
 822                 if (ke->modifiers() & Qt::AltModifier || ke->key() == Qt::Key_Tab
 823                         || ke->key() == Qt::Key_Backtab)
 824                         return QMainWindow::event(e);
 825
 826                 // Allow processing of shortcuts that are allowed even when no Buffer
 827                 // is viewed.
 828                 KeySymbol sym;
 829                 setKeySymbol(&sym, ke);
 830                 theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 831                 e->accept();
 832                 return true;
 833         }
 834
 835         default:
 836                 return QMainWindow::event(e);
 837         }
 838 }
 839
 840 void GuiView::resetWindowTitleAndIconText()
 841 {
 842     setWindowTitle(qt_("LyX"));
 843     setWindowIconText(qt_("LyX"));
 844 }
 845
 846 bool GuiView::focusNextPrevChild(bool /*next*/)
 847 {
 848         setFocus();
 849         return true;
 850 }
 851
 852
 853 void GuiView::setBusy(bool busy)
 854 {
 855         if (d.current_work_area_) {
 856                 d.current_work_area_->setUpdatesEnabled(!busy);
 857                 if (busy)
 858                         d.current_work_area_->stopBlinkingCursor();
 859                 else
 860                         d.current_work_area_->startBlinkingCursor();
 861         }
 862
 863         if (busy)
 864                 QApplication::setOverrideCursor(Qt::WaitCursor);
 865         else
 866                 QApplication::restoreOverrideCursor();
 867 }
 868
 869
 870 GuiWorkArea * GuiView::workArea(Buffer & buffer)
 871 {
 872         if (currentWorkArea()
 873             && &currentWorkArea()->bufferView().buffer() == &buffer)
 874                 return (GuiWorkArea *) currentWorkArea();
 875         if (TabWorkArea * twa = d.currentTabWorkArea())
 876                 return twa->workArea(buffer);
 877         return 0;
 878 }
 879
 880
 881 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
 882 {
 883         // Automatically create a TabWorkArea if there are none yet.
 884         TabWorkArea * tab_widget = d.splitter_->count()
 885                 ? d.currentTabWorkArea() : addTabWorkArea();
 886         return tab_widget->addWorkArea(buffer, *this);
 887 }
 888
 889
 890 TabWorkArea * GuiView::addTabWorkArea()
 891 {
 892         TabWorkArea * twa = new TabWorkArea;
 893         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 894                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 895         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
 896                          this, SLOT(on_lastWorkAreaRemoved()));
 897
 898         d.splitter_->addWidget(twa);
 899         d.stack_widget_->setCurrentWidget(d.splitter_);
 900         return twa;
 901 }
 902
 903
 904 GuiWorkArea const * GuiView::currentWorkArea() const
 905 {
 906         return d.current_work_area_;
 907 }
 908
 909
 910 GuiWorkArea * GuiView::currentWorkArea()
 911 {
 912         return d.current_work_area_;
 913 }
 914
 915
 916 GuiWorkArea const * GuiView::currentMainWorkArea() const
 917 {
 918         if (d.currentTabWorkArea() == NULL)
 919                 return NULL;
 920         return d.currentTabWorkArea()->currentWorkArea();
 921 }
 922
 923
 924 GuiWorkArea * GuiView::currentMainWorkArea()
 925 {
 926         if (d.currentTabWorkArea() == NULL)
 927                 return NULL;
 928         return d.currentTabWorkArea()->currentWorkArea();
 929 }
 930
 931
 932 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
 933 {
 934         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
 935         if (wa == NULL) {
 936                 d.current_work_area_ = NULL;
 937                 d.setBackground();
 938                 return;
 939         }
 940         GuiWorkArea * old_gwa = theGuiApp()->currentView()->currentWorkArea();
 941         if (old_gwa == wa)
 942                 return;
 943
 944         if (currentBufferView())
 945                 cap::saveSelection(currentBufferView()->cursor());
 946
 947         theGuiApp()->setCurrentView(this);
 948         d.current_work_area_ = wa;
 949         for (int i = 0; i != d.splitter_->count(); ++i) {
 950                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
 951                         //if (d.current_main_work_area_)
 952                         //      d.current_main_work_area_->setFrameStyle(QFrame::NoFrame);
 953                         d.current_main_work_area_ = wa;
 954                         //d.current_main_work_area_->setFrameStyle(QFrame::Box | QFrame::Plain);
 955                         //d.current_main_work_area_->setLineWidth(2);
 956                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
 957                         return;
 958                 }
 959         }
 960         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
 961         on_currentWorkAreaChanged(wa);
 962         BufferView & bv = wa->bufferView();
 963         bv.cursor().fixIfBroken();
 964         bv.updateMetrics();
 965         wa->setUpdatesEnabled(true);
 966         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
 967 }
 968
 969
 970 void GuiView::removeWorkArea(GuiWorkArea * wa)
 971 {
 972         LASSERT(wa, return);
 973         if (wa == d.current_work_area_) {
 974                 disconnectBuffer();
 975                 disconnectBufferView();
 976                 d.current_work_area_ = 0;
 977                 d.current_main_work_area_ = 0;
 978         }
 979
 980         bool found_twa = false;
 981         for (int i = 0; i != d.splitter_->count(); ++i) {
 982                 TabWorkArea * twa = d.tabWorkArea(i);
 983                 if (twa->removeWorkArea(wa)) {
 984                         // Found in this tab group, and deleted the GuiWorkArea.
 985                         found_twa = true;
 986                         if (twa->count() != 0) {
 987                                 if (d.current_work_area_ == 0)
 988                                         // This means that we are closing the current GuiWorkArea, so
 989                                         // switch to the next GuiWorkArea in the found TabWorkArea.
 990                                         setCurrentWorkArea(twa->currentWorkArea());
 991                         } else {
 992                                 // No more WorkAreas in this tab group, so delete it.
 993                                 delete twa;
 994                         }
 995                         break;
 996                 }
 997         }
 998
 999         // It is not a tabbed work area (i.e., the search work area), so it
1000         // should be deleted by other means.
1001         LASSERT(found_twa, /* */);
1002
1003         if (d.current_work_area_ == 0) {
1004                 if (d.splitter_->count() != 0) {
1005                         TabWorkArea * twa = d.currentTabWorkArea();
1006                         setCurrentWorkArea(twa->currentWorkArea());
1007                 } else {
1008                         // No more work areas, switch to the background widget.
1009                         setCurrentWorkArea(0);
1010                 }
1011         }
1012 }
1013
1014
1015 LayoutBox * GuiView::getLayoutDialog() const
1016 {
1017         return d.layout_;
1018 }
1019
1020
1021 void GuiView::updateLayoutList()
1022 {
1023         if (d.layout_)
1024                 d.layout_->updateContents(false);
1025 }
1026
1027
1028 void GuiView::updateToolbars()
1029 {
1030         ToolbarMap::iterator end = d.toolbars_.end();
1031         if (d.current_work_area_) {
1032                 bool const math =
1033                         d.current_work_area_->bufferView().cursor().inMathed();
1034                 bool const table =
1035                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1036                 bool const review =
1037                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1038                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
1039                 bool const mathmacrotemplate =
1040                         lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled();
1041
1042                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1043                         it->second->update(math, table, review, mathmacrotemplate);
1044         } else
1045                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1046                         it->second->update(false, false, false, false);
1047 }
1048
1049
1050 void GuiView::setBuffer(Buffer * newBuffer)
1051 {
1052         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << std::endl);
1053         LASSERT(newBuffer, return);
1054         setBusy(true);
1055
1056         GuiWorkArea * wa = workArea(*newBuffer);
1057         if (wa == 0) {
1058                 newBuffer->masterBuffer()->updateLabels();
1059                 wa = addWorkArea(*newBuffer);
1060         } else {
1061                 //Disconnect the old buffer...there's no new one.
1062                 disconnectBuffer();
1063         }
1064         connectBuffer(*newBuffer);
1065         connectBufferView(wa->bufferView());
1066         setCurrentWorkArea(wa);
1067
1068         setBusy(false);
1069 }
1070
1071
1072 void GuiView::connectBuffer(Buffer & buf)
1073 {
1074         buf.setGuiDelegate(this);
1075 }
1076
1077
1078 void GuiView::disconnectBuffer()
1079 {
1080         if (d.current_work_area_)
1081                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1082 }
1083
1084
1085 void GuiView::connectBufferView(BufferView & bv)
1086 {
1087         bv.setGuiDelegate(this);
1088 }
1089
1090
1091 void GuiView::disconnectBufferView()
1092 {
1093         if (d.current_work_area_)
1094                 d.current_work_area_->bufferView().setGuiDelegate(0);
1095 }
1096
1097
1098 void GuiView::errors(string const & error_type, bool from_master)
1099 {
1100         ErrorList & el = from_master ?
1101                 documentBufferView()->buffer().masterBuffer()->errorList(error_type)
1102                 : documentBufferView()->buffer().errorList(error_type);
1103         string data = error_type;
1104         if (from_master)
1105                 data = "from_master|" + error_type;
1106         if (!el.empty())
1107                 showDialog("errorlist", data);
1108 }
1109
1110
1111 void GuiView::updateTocItem(std::string const & type, DocIterator const & dit)
1112 {
1113         d.toc_models_.updateItem(toqstr(type), dit);
1114 }
1115
1116
1117 void GuiView::structureChanged()
1118 {
1119         d.toc_models_.reset(documentBufferView());
1120         // Navigator needs more than a simple update in this case. It needs to be
1121         // rebuilt.
1122         updateDialog("toc", "");
1123 }
1124
1125
1126 void GuiView::updateDialog(string const & name, string const & data)
1127 {
1128         if (!isDialogVisible(name))
1129                 return;
1130
1131         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1132         if (it == d.dialogs_.end())
1133                 return;
1134
1135         Dialog * const dialog = it->second.get();
1136         if (dialog->isVisibleView())
1137                 dialog->initialiseParams(data);
1138 }
1139
1140
1141 BufferView * GuiView::documentBufferView()
1142 {
1143         return currentMainWorkArea()
1144                 ? &currentMainWorkArea()->bufferView()
1145                 : 0;
1146 }
1147
1148
1149 BufferView const * GuiView::documentBufferView() const
1150 {
1151         return currentMainWorkArea()
1152                 ? &currentMainWorkArea()->bufferView()
1153                 : 0;
1154 }
1155
1156
1157 BufferView * GuiView::currentBufferView()
1158 {
1159         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1160 }
1161
1162
1163 BufferView const * GuiView::currentBufferView() const
1164 {
1165         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1166 }
1167
1168
1169 void GuiView::autoSave()
1170 {
1171         LYXERR(Debug::INFO, "Running autoSave()");
1172
1173         if (documentBufferView())
1174                 documentBufferView()->buffer().autoSave();
1175 }
1176
1177
1178 void GuiView::resetAutosaveTimers()
1179 {
1180         if (lyxrc.autosave)
1181                 d.autosave_timeout_.restart();
1182 }
1183
1184
1185 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1186 {
1187         bool enable = true;
1188         Buffer * buf = currentBufferView()
1189                 ? &currentBufferView()->buffer() : 0;
1190         Buffer * doc_buffer = documentBufferView()
1191                 ? &(documentBufferView()->buffer()) : 0;
1192
1193         // Check whether we need a buffer
1194         if (!lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer) && !buf) {
1195                 // no, exit directly
1196                 flag.message(from_utf8(N_("Command not allowed with"
1197                                     "out any document open")));
1198                 flag.setEnabled(false);
1199                 return true;
1200         }
1201
1202         if (cmd.origin == FuncRequest::TOC) {
1203                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1204                 FuncStatus fs;
1205                 if (toc->getStatus(documentBufferView()->cursor(), cmd, fs))
1206                         flag |= fs;
1207                 else
1208                         flag.setEnabled(false);
1209                 return true;
1210         }
1211
1212         switch(cmd.action) {
1213         case LFUN_BUFFER_IMPORT:
1214                 break;
1215
1216         case LFUN_BUFFER_RELOAD:
1217                 enable = doc_buffer && !doc_buffer->isUnnamed()
1218                         && doc_buffer->fileName().exists()
1219                         && (!doc_buffer->isClean()
1220                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1221                 break;
1222
1223         case LFUN_BUFFER_CHILD_OPEN:
1224                 enable = doc_buffer;
1225                 break;
1226
1227         case LFUN_BUFFER_WRITE:
1228                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1229                 break;
1230
1231         //FIXME: This LFUN should be moved to GuiApplication.
1232         case LFUN_BUFFER_WRITE_ALL: {
1233                 // We enable the command only if there are some modified buffers
1234                 Buffer * first = theBufferList().first();
1235                 enable = false;
1236                 if (!first)
1237                         break;
1238                 Buffer * b = first;
1239                 // We cannot use a for loop as the buffer list is a cycle.
1240                 do {
1241                         if (!b->isClean()) {
1242                                 enable = true;
1243                                 break;
1244                         }
1245                         b = theBufferList().next(b);
1246                 } while (b != first);
1247                 break;
1248         }
1249
1250         case LFUN_BUFFER_WRITE_AS:
1251                 enable = doc_buffer;
1252                 break;
1253
1254         case LFUN_BUFFER_CLOSE:
1255                 enable = doc_buffer;
1256                 break;
1257
1258         case LFUN_BUFFER_CLOSE_ALL:
1259                 enable = theBufferList().last() != theBufferList().first();
1260                 break;
1261
1262         case LFUN_SPLIT_VIEW:
1263                 if (cmd.getArg(0) == "vertical")
1264                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1265                                          d.splitter_->orientation() == Qt::Vertical);
1266                 else
1267                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1268                                          d.splitter_->orientation() == Qt::Horizontal);
1269                 break;
1270
1271         case LFUN_CLOSE_TAB_GROUP:
1272                 enable = d.currentTabWorkArea();
1273                 break;
1274
1275         case LFUN_TOOLBAR_TOGGLE:
1276                 if (GuiToolbar * t = toolbar(cmd.getArg(0)))
1277                         flag.setOnOff(t->isVisible());
1278                 break;
1279
1280         case LFUN_UI_TOGGLE:
1281                 flag.setOnOff(isFullScreen());
1282                 break;
1283
1284         case LFUN_DIALOG_DISCONNECT_INSET:
1285                 break;
1286
1287         case LFUN_DIALOG_HIDE:
1288                 // FIXME: should we check if the dialog is shown?
1289                 break;
1290
1291         case LFUN_DIALOG_TOGGLE:
1292                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1293                 // fall through to set "enable"
1294         case LFUN_DIALOG_SHOW: {
1295                 string const name = cmd.getArg(0);
1296                 if (!doc_buffer)
1297                         enable = name == "aboutlyx"
1298                                 || name == "file" //FIXME: should be removed.
1299                                 || name == "prefs"
1300                                 || name == "texinfo";
1301                 else if (name == "print")
1302                         enable = doc_buffer->isExportable("dvi")
1303                                 && lyxrc.print_command != "none";
1304                 else if (name == "character" || name == "symbols") {
1305                         if (!buf || buf->isReadonly()
1306                                 || !currentBufferView()->cursor().inTexted())
1307                                 enable = false;
1308                         else {
1309                                 // FIXME we should consider passthru
1310                                 // paragraphs too.
1311                                 Inset const & in = currentBufferView()->cursor().inset();
1312                                 enable = !in.getLayout().isPassThru();
1313                         }
1314                 }
1315                 else if (name == "latexlog")
1316                         enable = FileName(doc_buffer->logName()).isReadableFile();
1317                 else if (name == "spellchecker")
1318                         enable = theSpellChecker() && !doc_buffer->isReadonly();
1319                 else if (name == "vclog")
1320                         enable = doc_buffer->lyxvc().inUse();
1321                 break;
1322         }
1323
1324         case LFUN_DIALOG_UPDATE: {
1325                 string const name = cmd.getArg(0);
1326                 if (!buf)
1327                         enable = name == "prefs";
1328                 break;
1329         }
1330
1331         case LFUN_COMMAND_EXECUTE:
1332         case LFUN_MESSAGE:
1333         case LFUN_MENU_OPEN:
1334                 // Nothing to check.
1335                 break;
1336
1337         case LFUN_COMPLETION_INLINE:
1338                 if (!d.current_work_area_
1339                     || !d.current_work_area_->completer().inlinePossible(
1340                         currentBufferView()->cursor()))
1341                     enable = false;
1342                 break;
1343
1344         case LFUN_COMPLETION_POPUP:
1345                 if (!d.current_work_area_
1346                     || !d.current_work_area_->completer().popupPossible(
1347                         currentBufferView()->cursor()))
1348                     enable = false;
1349                 break;
1350
1351         case LFUN_COMPLETION_COMPLETE:
1352                 if (!d.current_work_area_
1353                         || !d.current_work_area_->completer().inlinePossible(
1354                         currentBufferView()->cursor()))
1355                     enable = false;
1356                 break;
1357
1358         case LFUN_COMPLETION_ACCEPT:
1359                 if (!d.current_work_area_
1360                     || (!d.current_work_area_->completer().popupVisible()
1361                         && !d.current_work_area_->completer().inlineVisible()
1362                         && !d.current_work_area_->completer().completionAvailable()))
1363                         enable = false;
1364                 break;
1365
1366         case LFUN_COMPLETION_CANCEL:
1367                 if (!d.current_work_area_
1368                     || (!d.current_work_area_->completer().popupVisible()
1369                         && !d.current_work_area_->completer().inlineVisible()))
1370                         enable = false;
1371                 break;
1372
1373         case LFUN_BUFFER_ZOOM_OUT:
1374                 enable = doc_buffer && lyxrc.zoom > 10;
1375                 break;
1376
1377         case LFUN_BUFFER_ZOOM_IN:
1378                 enable = doc_buffer;
1379                 break;
1380
1381         case LFUN_BUFFER_NEXT:
1382         case LFUN_BUFFER_PREVIOUS:
1383                 // FIXME: should we check is there is an previous or next buffer?
1384                 break;
1385         case LFUN_BUFFER_SWITCH:
1386                 // toggle on the current buffer, but do not toggle off
1387                 // the other ones (is that a good idea?)
1388                 if (doc_buffer
1389                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
1390                         flag.setOnOff(true);
1391                 break;
1392
1393         case LFUN_VC_REGISTER:
1394                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
1395                 break;
1396         case LFUN_VC_CHECK_IN:
1397                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
1398                 break;
1399         case LFUN_VC_CHECK_OUT:
1400                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
1401                 break;
1402         case LFUN_VC_LOCKING_TOGGLE:
1403                 enable = doc_buffer && !doc_buffer->isReadonly()
1404                         && doc_buffer->lyxvc().lockingToggleEnabled();
1405                 flag.setOnOff(enable && !doc_buffer->lyxvc().locker().empty());
1406                 break;
1407         case LFUN_VC_REVERT:
1408                 enable = doc_buffer && doc_buffer->lyxvc().inUse();
1409                 break;
1410         case LFUN_VC_UNDO_LAST:
1411                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
1412                 break;
1413         case LFUN_VC_COMMAND: {
1414                 if (cmd.argument().empty())
1415                         enable = false;
1416                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
1417                         enable = false;
1418                 break;
1419         }
1420
1421         case LFUN_SERVER_GOTO_FILE_ROW:
1422                 break;
1423
1424         default:
1425                 return false;
1426         }
1427
1428         if (!enable)
1429                 flag.setEnabled(false);
1430
1431         return true;
1432 }
1433
1434
1435 static FileName selectTemplateFile()
1436 {
1437         FileDialog dlg(qt_("Select template file"));
1438         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1439         dlg.setButton1(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1440
1441         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
1442                              QStringList(qt_("LyX Documents (*.lyx)")));
1443
1444         if (result.first == FileDialog::Later)
1445                 return FileName();
1446         if (result.second.isEmpty())
1447                 return FileName();
1448         return FileName(fromqstr(result.second));
1449 }
1450
1451
1452 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
1453 {
1454         setBusy(true);
1455
1456         Buffer * newBuffer = checkAndLoadLyXFile(filename);
1457
1458         if (!newBuffer) {
1459                 message(_("Document not loaded."));
1460                 setBusy(false);
1461                 return 0;
1462         }
1463
1464         setBuffer(newBuffer);
1465
1466         // scroll to the position when the file was last closed
1467         if (lyxrc.use_lastfilepos) {
1468                 LastFilePosSection::FilePos filepos =
1469                         theSession().lastFilePos().load(filename);
1470                 documentBufferView()->moveToPosition(filepos.pit, filepos.pos, 0, 0);
1471         }
1472
1473         if (tolastfiles)
1474                 theSession().lastFiles().add(filename);
1475
1476         setBusy(false);
1477         return newBuffer;
1478 }
1479
1480
1481 void GuiView::openDocument(string const & fname)
1482 {
1483         string initpath = lyxrc.document_path;
1484
1485         if (documentBufferView()) {
1486                 string const trypath = documentBufferView()->buffer().filePath();
1487                 // If directory is writeable, use this as default.
1488                 if (FileName(trypath).isDirWritable())
1489                         initpath = trypath;
1490         }
1491
1492         string filename;
1493
1494         if (fname.empty()) {
1495                 FileDialog dlg(qt_("Select document to open"), LFUN_FILE_OPEN);
1496                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1497                 dlg.setButton2(qt_("Examples|#E#e"),
1498                                 toqstr(addPath(package().system_support().absFilename(), "examples")));
1499
1500                 QStringList filter(qt_("LyX Documents (*.lyx)"));
1501                 filter << qt_("LyX-1.3.x Documents (*.lyx13)")
1502                         << qt_("LyX-1.4.x Documents (*.lyx14)")
1503                         << qt_("LyX-1.5.x Documents (*.lyx15)")
1504                         << qt_("LyX-1.6.x Documents (*.lyx16)");
1505                 FileDialog::Result result =
1506                         dlg.open(toqstr(initpath), filter);
1507
1508                 if (result.first == FileDialog::Later)
1509                         return;
1510
1511                 filename = fromqstr(result.second);
1512
1513                 // check selected filename
1514                 if (filename.empty()) {
1515                         message(_("Canceled."));
1516                         return;
1517                 }
1518         } else
1519                 filename = fname;
1520
1521         // get absolute path of file and add ".lyx" to the filename if
1522         // necessary.
1523         FileName const fullname =
1524                         fileSearch(string(), filename, "lyx", support::may_not_exist);
1525         if (!fullname.empty())
1526                 filename = fullname.absFilename();
1527
1528         if (!fullname.onlyPath().isDirectory()) {
1529                 Alert::warning(_("Invalid filename"),
1530                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
1531                                 from_utf8(fullname.absFilename())));
1532                 return;
1533         }
1534         // if the file doesn't exist, let the user create one
1535         if (!fullname.exists()) {
1536                 // the user specifically chose this name. Believe him.
1537                 Buffer * const b = newFile(filename, string(), true);
1538                 if (b)
1539                         setBuffer(b);
1540                 return;
1541         }
1542
1543         docstring const disp_fn = makeDisplayPath(filename);
1544         message(bformat(_("Opening document %1$s..."), disp_fn));
1545
1546         docstring str2;
1547         Buffer * buf = loadDocument(fullname);
1548         if (buf) {
1549                 buf->updateLabels();
1550                 setBuffer(buf);
1551                 buf->errors("Parse");
1552                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1553                 if (buf->lyxvc().inUse())
1554                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
1555                                 " " + _("Version control detected.");
1556         } else {
1557                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1558         }
1559         message(str2);
1560 }
1561
1562 // FIXME: clean that
1563 static bool import(GuiView * lv, FileName const & filename,
1564         string const & format, ErrorList & errorList)
1565 {
1566         FileName const lyxfile(support::changeExtension(filename.absFilename(), ".lyx"));
1567
1568         string loader_format;
1569         vector<string> loaders = theConverters().loaders();
1570         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
1571                 for (vector<string>::const_iterator it = loaders.begin();
1572                      it != loaders.end(); ++it) {
1573                         if (!theConverters().isReachable(format, *it))
1574                                 continue;
1575
1576                         string const tofile =
1577                                 support::changeExtension(filename.absFilename(),
1578                                 formats.extension(*it));
1579                         if (!theConverters().convert(0, filename, FileName(tofile),
1580                                 filename, format, *it, errorList))
1581                                 return false;
1582                         loader_format = *it;
1583                         break;
1584                 }
1585                 if (loader_format.empty()) {
1586                         frontend::Alert::error(_("Couldn't import file"),
1587                                      bformat(_("No information for importing the format %1$s."),
1588                                          formats.prettyName(format)));
1589                         return false;
1590                 }
1591         } else
1592                 loader_format = format;
1593
1594         if (loader_format == "lyx") {
1595                 Buffer * buf = lv->loadDocument(lyxfile);
1596                 if (!buf)
1597                         return false;
1598                 buf->updateLabels();
1599                 lv->setBuffer(buf);
1600                 buf->errors("Parse");
1601         } else {
1602                 Buffer * const b = newFile(lyxfile.absFilename(), string(), true);
1603                 if (!b)
1604                         return false;
1605                 lv->setBuffer(b);
1606                 bool as_paragraphs = loader_format == "textparagraph";
1607                 string filename2 = (loader_format == format) ? filename.absFilename()
1608                         : support::changeExtension(filename.absFilename(),
1609                                           formats.extension(loader_format));
1610                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
1611                         as_paragraphs);
1612                 guiApp->setCurrentView(lv);
1613                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1614         }
1615
1616         return true;
1617 }
1618
1619
1620 void GuiView::importDocument(string const & argument)
1621 {
1622         string format;
1623         string filename = split(argument, format, ' ');
1624
1625         LYXERR(Debug::INFO, format << " file: " << filename);
1626
1627         // need user interaction
1628         if (filename.empty()) {
1629                 string initpath = lyxrc.document_path;
1630                 if (documentBufferView()) {
1631                         string const trypath = documentBufferView()->buffer().filePath();
1632                         // If directory is writeable, use this as default.
1633                         if (FileName(trypath).isDirWritable())
1634                                 initpath = trypath;
1635                 }
1636
1637                 docstring const text = bformat(_("Select %1$s file to import"),
1638                         formats.prettyName(format));
1639
1640                 FileDialog dlg(toqstr(text), LFUN_BUFFER_IMPORT);
1641                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1642                 dlg.setButton2(qt_("Examples|#E#e"),
1643                         toqstr(addPath(package().system_support().absFilename(), "examples")));
1644
1645                 docstring filter = formats.prettyName(format);
1646                 filter += " (*.";
1647                 // FIXME UNICODE
1648                 filter += from_utf8(formats.extension(format));
1649                 filter += ')';
1650
1651                 FileDialog::Result result =
1652                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
1653
1654                 if (result.first == FileDialog::Later)
1655                         return;
1656
1657                 filename = fromqstr(result.second);
1658
1659                 // check selected filename
1660                 if (filename.empty())
1661                         message(_("Canceled."));
1662         }
1663
1664         if (filename.empty())
1665                 return;
1666
1667         // get absolute path of file
1668         FileName const fullname(support::makeAbsPath(filename));
1669
1670         FileName const lyxfile(support::changeExtension(fullname.absFilename(), ".lyx"));
1671
1672         // Check if the document already is open
1673         Buffer * buf = theBufferList().getBuffer(lyxfile);
1674         if (buf) {
1675                 setBuffer(buf);
1676                 if (!closeBuffer()) {
1677                         message(_("Canceled."));
1678                         return;
1679                 }
1680         }
1681
1682         docstring const displaypath = makeDisplayPath(lyxfile.absFilename(), 30);
1683
1684         // if the file exists already, and we didn't do
1685         // -i lyx thefile.lyx, warn
1686         if (lyxfile.exists() && fullname != lyxfile) {
1687
1688                 docstring text = bformat(_("The document %1$s already exists.\n\n"
1689                         "Do you want to overwrite that document?"), displaypath);
1690                 int const ret = Alert::prompt(_("Overwrite document?"),
1691                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
1692
1693                 if (ret == 1) {
1694                         message(_("Canceled."));
1695                         return;
1696                 }
1697         }
1698
1699         message(bformat(_("Importing %1$s..."), displaypath));
1700         ErrorList errorList;
1701         if (import(this, fullname, format, errorList))
1702                 message(_("imported."));
1703         else
1704                 message(_("file not imported!"));
1705
1706         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
1707 }
1708
1709
1710 void GuiView::newDocument(string const & filename, bool from_template)
1711 {
1712         FileName initpath(lyxrc.document_path);
1713         if (documentBufferView()) {
1714                 FileName const trypath(documentBufferView()->buffer().filePath());
1715                 // If directory is writeable, use this as default.
1716                 if (trypath.isDirWritable())
1717                         initpath = trypath;
1718         }
1719
1720         string templatefile;
1721         if (from_template) {
1722                 templatefile = selectTemplateFile().absFilename();
1723                 if (templatefile.empty())
1724                         return;
1725         }
1726
1727         Buffer * b;
1728         if (filename.empty())
1729                 b = newUnnamedFile(templatefile, initpath);
1730         else
1731                 b = newFile(filename, templatefile, true);
1732
1733         if (b)
1734                 setBuffer(b);
1735
1736         // If no new document could be created, it is unsure
1737         // whether there is a valid BufferView.
1738         if (currentBufferView())
1739                 // Ensure the cursor is correctly positioned on screen.
1740                 currentBufferView()->showCursor();
1741 }
1742
1743
1744 void GuiView::insertLyXFile(docstring const & fname)
1745 {
1746         BufferView * bv = documentBufferView();
1747         if (!bv)
1748                 return;
1749
1750         // FIXME UNICODE
1751         FileName filename(to_utf8(fname));
1752
1753         if (!filename.empty()) {
1754                 bv->insertLyXFile(filename);
1755                 return;
1756         }
1757
1758         // Launch a file browser
1759         // FIXME UNICODE
1760         string initpath = lyxrc.document_path;
1761         string const trypath = bv->buffer().filePath();
1762         // If directory is writeable, use this as default.
1763         if (FileName(trypath).isDirWritable())
1764                 initpath = trypath;
1765
1766         // FIXME UNICODE
1767         FileDialog dlg(qt_("Select LyX document to insert"), LFUN_FILE_INSERT);
1768         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1769         dlg.setButton2(qt_("Examples|#E#e"),
1770                 toqstr(addPath(package().system_support().absFilename(),
1771                 "examples")));
1772
1773         FileDialog::Result result = dlg.open(toqstr(initpath),
1774                              QStringList(qt_("LyX Documents (*.lyx)")));
1775
1776         if (result.first == FileDialog::Later)
1777                 return;
1778
1779         // FIXME UNICODE
1780         filename.set(fromqstr(result.second));
1781
1782         // check selected filename
1783         if (filename.empty()) {
1784                 // emit message signal.
1785                 message(_("Canceled."));
1786                 return;
1787         }
1788
1789         bv->insertLyXFile(filename);
1790 }
1791
1792
1793 void GuiView::insertPlaintextFile(docstring const & fname,
1794         bool asParagraph)
1795 {
1796         BufferView * bv = documentBufferView();
1797         if (!bv)
1798                 return;
1799
1800         if (!fname.empty() && !FileName::isAbsolute(to_utf8(fname))) {
1801                 message(_("Absolute filename expected."));
1802                 return;
1803         }
1804
1805         // FIXME UNICODE
1806         FileName filename(to_utf8(fname));
1807
1808         if (!filename.empty()) {
1809                 bv->insertPlaintextFile(filename, asParagraph);
1810                 return;
1811         }
1812
1813         FileDialog dlg(qt_("Select file to insert"), (asParagraph ?
1814                 LFUN_FILE_INSERT_PLAINTEXT_PARA : LFUN_FILE_INSERT_PLAINTEXT));
1815
1816         FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
1817                 QStringList(qt_("All Files (*)")));
1818
1819         if (result.first == FileDialog::Later)
1820                 return;
1821
1822         // FIXME UNICODE
1823         filename.set(fromqstr(result.second));
1824
1825         // check selected filename
1826         if (filename.empty()) {
1827                 // emit message signal.
1828                 message(_("Canceled."));
1829                 return;
1830         }
1831
1832         bv->insertPlaintextFile(filename, asParagraph);
1833 }
1834
1835
1836 bool GuiView::renameBuffer(Buffer & b, docstring const & newname)
1837 {
1838         FileName fname = b.fileName();
1839         FileName const oldname = fname;
1840
1841         if (!newname.empty()) {
1842                 // FIXME UNICODE
1843                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFilename());
1844         } else {
1845                 // Switch to this Buffer.
1846                 setBuffer(&b);
1847
1848                 // No argument? Ask user through dialog.
1849                 // FIXME UNICODE
1850                 FileDialog dlg(qt_("Choose a filename to save document as"),
1851                                    LFUN_BUFFER_WRITE_AS);
1852                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1853                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1854
1855                 if (!isLyXFilename(fname.absFilename()))
1856                         fname.changeExtension(".lyx");
1857
1858                 FileDialog::Result result =
1859                         dlg.save(toqstr(fname.onlyPath().absFilename()),
1860                                QStringList(qt_("LyX Documents (*.lyx)")),
1861                                      toqstr(fname.onlyFileName()));
1862
1863                 if (result.first == FileDialog::Later)
1864                         return false;
1865
1866                 fname.set(fromqstr(result.second));
1867
1868                 if (fname.empty())
1869                         return false;
1870
1871                 if (!isLyXFilename(fname.absFilename()))
1872                         fname.changeExtension(".lyx");
1873         }
1874
1875         if (FileName(fname).exists()) {
1876                 docstring const file = makeDisplayPath(fname.absFilename(), 30);
1877                 docstring text = bformat(_("The document %1$s already "
1878                                            "exists.\n\nDo you want to "
1879                                            "overwrite that document?"),
1880                                          file);
1881                 int const ret = Alert::prompt(_("Overwrite document?"),
1882                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
1883                 switch (ret) {
1884                 case 0: break;
1885                 case 1: return renameBuffer(b, docstring());
1886                 case 2: return false;
1887                 }
1888         }
1889
1890         FileName oldauto = b.getAutosaveFilename();
1891
1892         // Ok, change the name of the buffer
1893         b.setFileName(fname.absFilename());
1894         b.markDirty();
1895         bool unnamed = b.isUnnamed();
1896         b.setUnnamed(false);
1897         b.saveCheckSum(fname);
1898
1899         // bring the autosave file with us, just in case.
1900         b.moveAutosaveFile(oldauto);
1901
1902         if (!saveBuffer(b)) {
1903                 oldauto = b.getAutosaveFilename();
1904                 b.setFileName(oldname.absFilename());
1905                 b.setUnnamed(unnamed);
1906                 b.saveCheckSum(oldname);
1907                 b.moveAutosaveFile(oldauto);
1908                 return false;
1909         }
1910
1911         return true;
1912 }
1913
1914
1915 bool GuiView::saveBuffer(Buffer & b)
1916 {
1917         if (workArea(b) && workArea(b)->inDialogMode())
1918                 return true;
1919
1920         if (b.isUnnamed())
1921                 return renameBuffer(b, docstring());
1922
1923         if (b.save()) {
1924                 theSession().lastFiles().add(b.fileName());
1925                 return true;
1926         }
1927
1928         // Switch to this Buffer.
1929         setBuffer(&b);
1930
1931         // FIXME: we don't tell the user *WHY* the save failed !!
1932         docstring const file = makeDisplayPath(b.absFileName(), 30);
1933         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
1934                                    "Do you want to rename the document and "
1935                                    "try again?"), file);
1936         int const ret = Alert::prompt(_("Rename and save?"),
1937                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
1938         switch (ret) {
1939         case 0:
1940                 if (!renameBuffer(b, docstring()))
1941                         return false;
1942                 break;
1943         case 1:
1944                 break;
1945         case 2:
1946                 return false;
1947         }
1948
1949         return saveBuffer(b);
1950 }
1951
1952
1953 bool GuiView::hideWorkArea(GuiWorkArea * wa)
1954 {
1955         return closeWorkArea(wa, false);
1956 }
1957
1958
1959 bool GuiView::closeWorkArea(GuiWorkArea * wa)
1960 {
1961         Buffer & buf = wa->bufferView().buffer();
1962         return closeWorkArea(wa, !buf.parent());
1963 }
1964
1965
1966 bool GuiView::closeBuffer()
1967 {
1968         GuiWorkArea * wa = currentMainWorkArea();
1969         Buffer & buf = wa->bufferView().buffer();
1970         return wa && closeWorkArea(wa, !buf.parent());
1971 }
1972
1973
1974 void GuiView::writeSession() const {
1975         GuiWorkArea const * active_wa = currentMainWorkArea();
1976         for (int i = 0; i < d.splitter_->count(); ++i) {
1977                 TabWorkArea * twa = d.tabWorkArea(i);
1978                 for (int j = 0; j < twa->count(); ++j) {
1979                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
1980                         Buffer & buf = wa->bufferView().buffer();
1981                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
1982                 }
1983         }
1984 }
1985
1986
1987 bool GuiView::closeBufferAll()
1988 {
1989         // Close the workareas in all other views
1990         QList<int> const ids = guiApp->viewIds();
1991         for (int i = 0; i != ids.size(); ++i) {
1992                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
1993                         return false;
1994         }
1995
1996         // Close our own workareas
1997         if (!closeWorkAreaAll())
1998                 return false;
1999
2000         // Now close the hidden buffers. We prevent hidden buffers from being
2001         // dirty, so we can just close them.
2002         theBufferList().closeAll();
2003         return true;
2004 }
2005
2006
2007 bool GuiView::closeWorkAreaAll()
2008 {
2009         setCurrentWorkArea(currentMainWorkArea());
2010
2011         // We might be in a situation that there is still a tabWorkArea, but
2012         // there are no tabs anymore. This can happen when we get here after a
2013         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2014         // many TabWorkArea's have no documents anymore.
2015         int empty_twa = 0;
2016
2017         // We have to call count() each time, because it can happen that
2018         // more than one splitter will disappear in one iteration (bug 5998).
2019         for (; d.splitter_->count() > empty_twa; ) {
2020                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2021
2022                 if (twa->count() == 0)
2023                         ++empty_twa;
2024                 else {
2025                         setCurrentWorkArea(twa->currentWorkArea());
2026                         if (!closeTabWorkArea(twa))
2027                                 return false;
2028                 }
2029         }
2030         return true;
2031 }
2032
2033
2034 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2035 {
2036         Buffer & buf = wa->bufferView().buffer();
2037
2038         // If we are in a close_event all children will be closed in some time,
2039         // so no need to do it here. This will ensure that the children end up
2040         // in the session file in the correct order. If we close the master
2041         // buffer, we can close or release the child buffers here too.
2042         if (close_buffer && !closing_) {
2043                 vector<Buffer *> clist = buf.getChildren();
2044                 for (vector<Buffer *>::const_iterator it = clist.begin();
2045                          it != clist.end(); ++it) {
2046                         // If a child is dirty, do not close
2047                         // without user intervention
2048                         //FIXME: should we look in other tabworkareas?
2049                         Buffer * child_buf = *it;
2050                         GuiWorkArea * child_wa = workArea(*child_buf);
2051                         if (child_wa) {
2052                                 if (!closeWorkArea(child_wa, true))
2053                                         return false;
2054                         } else
2055                                 theBufferList().releaseChild(&buf, child_buf);
2056                 }
2057         }
2058         // goto bookmark to update bookmark pit.
2059         //FIXME: we should update only the bookmarks related to this buffer!
2060         LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2061         for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2062                 theLyXFunc().gotoBookmark(i+1, false, false);
2063
2064         // if we are only hiding the buffer and there are multiple views
2065         // of the buffer, then we do not need to ensure a clean buffer.
2066         bool const allow_dirty = inMultiTabs(wa) && !close_buffer;
2067
2068         if (allow_dirty || saveBufferIfNeeded(buf, !close_buffer)) {
2069                 // save in sessions if requested
2070                 // do not save childs if their master
2071                 // is opened as well
2072                 if (!close_buffer)
2073                         removeWorkArea(wa);
2074                 else
2075                         theBufferList().release(&buf);
2076                 return true;
2077         }
2078         return false;
2079 }
2080
2081
2082 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2083 {
2084         while (twa == d.currentTabWorkArea()) {
2085                 twa->setCurrentIndex(twa->count()-1);
2086
2087                 GuiWorkArea * wa = twa->currentWorkArea();
2088                 Buffer & b = wa->bufferView().buffer();
2089
2090                 // We only want to close the buffer if the same buffer is not visible
2091                 // in another view, and if this is not a child and if we are closing
2092                 // a view (not a tabgroup).
2093                 bool const close_buffer =
2094                         !inMultiViews(wa) && !b.parent() && closing_;
2095
2096                 if (!closeWorkArea(wa, close_buffer))
2097                         return false;
2098         }
2099         return true;
2100 }
2101
2102
2103 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2104 {
2105         if (buf.isClean() || buf.paragraphs().empty())
2106                 return true;
2107
2108         // Switch to this Buffer.
2109         setBuffer(&buf);
2110
2111         docstring file;
2112         // FIXME: Unicode?
2113         if (buf.isUnnamed())
2114                 file = from_utf8(buf.fileName().onlyFileName());
2115         else
2116                 file = buf.fileName().displayName(30);
2117
2118         // Bring this window to top before asking questions.
2119         raise();
2120         activateWindow();
2121
2122         int ret;
2123         if (hiding && buf.isUnnamed()) {
2124                 docstring const text = bformat(_("The document %1$s has not been "
2125                                              "saved yet.\n\nDo you want to save "
2126                                              "the document?"), file);
2127                 ret = Alert::prompt(_("Save new document?"),
2128                         text, 0, 1, _("&Save"), _("&Cancel"));
2129                 if (ret == 1)
2130                         ++ret;
2131         } else {
2132                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2133                         "\n\nDo you want to save the document or discard the changes?"), file);
2134                 ret = Alert::prompt(_("Save changed document?"),
2135                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2136         }
2137
2138         switch (ret) {
2139         case 0:
2140                 if (!saveBuffer(buf))
2141                         return false;
2142                 break;
2143         case 1:
2144                 // if we crash after this we could
2145                 // have no autosave file but I guess
2146                 // this is really improbable (Jug)
2147                 buf.removeAutosaveFile();
2148                 if (hiding)
2149                         // revert all changes
2150                         buf.loadLyXFile(buf.fileName());
2151                 buf.markClean();
2152                 break;
2153         case 2:
2154                 return false;
2155         }
2156         return true;
2157 }
2158
2159
2160 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2161 {
2162         Buffer & buf = wa->bufferView().buffer();
2163
2164         for (int i = 0; i != d.splitter_->count(); ++i) {
2165                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2166                 if (wa_ && wa_ != wa)
2167                         return true;
2168         }
2169         return inMultiViews(wa);
2170 }
2171
2172
2173 bool GuiView::inMultiViews(GuiWorkArea * wa)
2174 {
2175         QList<int> const ids = guiApp->viewIds();
2176         Buffer & buf = wa->bufferView().buffer();
2177
2178         int found_twa = 0;
2179         for (int i = 0; i != ids.size() && found_twa <= 1; ++i) {
2180                 if (id_ == ids[i])
2181                         continue;
2182
2183                 if (guiApp->view(ids[i]).workArea(buf))
2184                         return true;
2185         }
2186         return false;
2187 }
2188
2189
2190 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np)
2191 {
2192         Buffer * const curbuf = documentBufferView()
2193                 ? &documentBufferView()->buffer() : 0;
2194         Buffer * nextbuf = curbuf;
2195         while (true) {
2196                 if (np == NEXTBUFFER)
2197                         nextbuf = theBufferList().next(nextbuf);
2198                 else
2199                         nextbuf = theBufferList().previous(nextbuf);
2200                 if (nextbuf == curbuf)
2201                         break;
2202                 if (nextbuf == 0) {
2203                         nextbuf = curbuf;
2204                         break;
2205                 }
2206                 if (workArea(*nextbuf))
2207                         break;
2208         }
2209         setBuffer(nextbuf);
2210 }
2211
2212
2213 /// make sure the document is saved
2214 static bool ensureBufferClean(Buffer * buffer)
2215 {
2216         LASSERT(buffer, return false);
2217         if (buffer->isClean() && !buffer->isUnnamed())
2218                 return true;
2219
2220         docstring const file = buffer->fileName().displayName(30);
2221         docstring title;
2222         docstring text;
2223         if (!buffer->isUnnamed()) {
2224                 text = bformat(_("The document %1$s has unsaved "
2225                                              "changes.\n\nDo you want to save "
2226                                              "the document?"), file);
2227                 title = _("Save changed document?");
2228
2229         } else {
2230                 text = bformat(_("The document %1$s has not been "
2231                                              "saved yet.\n\nDo you want to save "
2232                                              "the document?"), file);
2233                 title = _("Save new document?");
2234         }
2235         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
2236
2237         if (ret == 0)
2238                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
2239
2240         return buffer->isClean() && !buffer->isUnnamed();
2241 }
2242
2243
2244 void GuiView::reloadBuffer()
2245 {
2246         Buffer * buf = &documentBufferView()->buffer();
2247         FileName filename = buf->fileName();
2248         Buffer const * master = buf->masterBuffer();
2249         bool const is_child = master != buf;
2250         // The user has already confirmed that the changes, if any, should
2251         // be discarded. So we just release the Buffer and don't call closeBuffer();
2252         theBufferList().release(buf);
2253         buf = loadDocument(filename);
2254         docstring const disp_fn = makeDisplayPath(filename.absFilename());
2255         docstring str;
2256         if (buf) {
2257                 // re-allocate master if necessary
2258                 if (is_child && theBufferList().isLoaded(master)
2259                     && buf->masterBuffer() != master)
2260                         buf->setParent(master);
2261                 buf->updateLabels();
2262                 setBuffer(buf);
2263                 buf->errors("Parse");
2264                 str = bformat(_("Document %1$s reloaded."), disp_fn);
2265         } else {
2266                 str = bformat(_("Could not reload document %1$s"), disp_fn);
2267         }
2268         message(str);
2269 }
2270
2271
2272 void GuiView::dispatchVC(FuncRequest const & cmd)
2273 {
2274         Buffer * buffer = documentBufferView()
2275                 ? &(documentBufferView()->buffer()) : 0;
2276
2277         switch (cmd.action) {
2278         case LFUN_VC_REGISTER:
2279                 if (!buffer || !ensureBufferClean(buffer))
2280                         break;
2281                 if (!buffer->lyxvc().inUse()) {
2282                         if (buffer->lyxvc().registrer())
2283                                 reloadBuffer();
2284                 }
2285                 break;
2286
2287         case LFUN_VC_CHECK_IN:
2288                 if (!buffer || !ensureBufferClean(buffer))
2289                         break;
2290                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
2291                         message(from_utf8(buffer->lyxvc().checkIn()));
2292                         reloadBuffer();
2293                 }
2294                 break;
2295
2296         case LFUN_VC_CHECK_OUT:
2297                 if (!buffer || !ensureBufferClean(buffer))
2298                         break;
2299                 if (buffer->lyxvc().inUse()) {
2300                         message(from_utf8(buffer->lyxvc().checkOut()));
2301                         reloadBuffer();
2302                 }
2303                 break;
2304
2305         case LFUN_VC_LOCKING_TOGGLE:
2306                 LASSERT(buffer, return);
2307                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
2308                         break;
2309                 if (buffer->lyxvc().inUse()) {
2310                         string res = buffer->lyxvc().lockingToggle();
2311                         if (res.empty()) {
2312                                 frontend::Alert::error(_("Revision control error."),
2313                                 _("Error when setting the locking property."));
2314                         } else {
2315                                 message(from_utf8(res));
2316                                 reloadBuffer();
2317                         }
2318                 }
2319                 break;
2320
2321         case LFUN_VC_REVERT:
2322                 LASSERT(buffer, return);
2323                 buffer->lyxvc().revert();
2324                 reloadBuffer();
2325                 break;
2326
2327         case LFUN_VC_UNDO_LAST:
2328                 LASSERT(buffer, return);
2329                 buffer->lyxvc().undoLast();
2330                 reloadBuffer();
2331                 break;
2332
2333         case LFUN_VC_COMMAND: {
2334                 string flag = cmd.getArg(0);
2335                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
2336                         break;
2337                 docstring message;
2338                 if (contains(flag, 'M')) {
2339                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
2340                                 break;
2341                 }
2342                 string path = cmd.getArg(1);
2343                 if (contains(path, "$$p") && buffer)
2344                         path = subst(path, "$$p", buffer->filePath());
2345                 LYXERR(Debug::LYXVC, "Directory: " << path);
2346                 FileName pp(path);
2347                 if (!pp.isReadableDirectory()) {
2348                         lyxerr << _("Directory is not accessible.") << endl;
2349                         break;
2350                 }
2351                 support::PathChanger p(pp);
2352
2353                 string command = cmd.getArg(2);
2354                 if (command.empty())
2355                         break;
2356                 if (buffer) {
2357                         command = subst(command, "$$i", buffer->absFileName());
2358                         command = subst(command, "$$p", buffer->filePath());
2359                 }
2360                 command = subst(command, "$$m", to_utf8(message));
2361                 LYXERR(Debug::LYXVC, "Command: " << command);
2362                 Systemcall one;
2363                 one.startscript(Systemcall::Wait, command);
2364
2365                 if (!buffer)
2366                         break;
2367                 if (contains(flag, 'I'))
2368                         buffer->markDirty();
2369                 if (contains(flag, 'R'))
2370                         reloadBuffer();
2371
2372                 break;
2373                 }
2374         default:
2375                 break;
2376         }
2377 }
2378
2379
2380 void GuiView::openChildDocument(string const & fname)
2381 {
2382         LASSERT(documentBufferView(), return);
2383         Buffer & buffer = documentBufferView()->buffer();
2384         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
2385         documentBufferView()->saveBookmark(false);
2386         Buffer * child = 0;
2387         bool parsed = false;
2388         if (theBufferList().exists(filename)) {
2389                 child = theBufferList().getBuffer(filename);
2390         } else {
2391                 message(bformat(_("Opening child document %1$s..."),
2392                 makeDisplayPath(filename.absFilename())));
2393                 child = loadDocument(filename, false);
2394                 parsed = true;
2395         }
2396         if (!child)
2397                 return;
2398
2399         // Set the parent name of the child document.
2400         // This makes insertion of citations and references in the child work,
2401         // when the target is in the parent or another child document.
2402         child->setParent(&buffer);
2403         child->masterBuffer()->updateLabels();
2404         setBuffer(child);
2405         if (parsed)
2406                 child->errors("Parse");
2407 }
2408
2409
2410 bool GuiView::goToFileRow(string const & argument)
2411 {
2412         string file_name;
2413         int row;
2414         istringstream is(argument);
2415         is >> file_name >> row;
2416         file_name = os::internal_path(file_name);
2417         Buffer * buf = 0;
2418         string const abstmp = package().temp_dir().absFilename();
2419         string const realtmp = package().temp_dir().realPath();
2420         // We have to use os::path_prefix_is() here, instead of
2421         // simply prefixIs(), because the file name comes from
2422         // an external application and may need case adjustment.
2423         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
2424                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
2425                 // Needed by inverse dvi search. If it is a file
2426                 // in tmpdir, call the apropriated function.
2427                 // If tmpdir is a symlink, we may have the real
2428                 // path passed back, so we correct for that.
2429                 if (!prefixIs(file_name, abstmp))
2430                         file_name = subst(file_name, realtmp, abstmp);
2431                 buf = theBufferList().getBufferFromTmp(file_name);
2432         } else {
2433                 // Must replace extension of the file to be .lyx
2434                 // and get full path
2435                 FileName const s = fileSearch(string(),
2436                                               support::changeExtension(file_name, ".lyx"), "lyx");
2437                 // Either change buffer or load the file
2438                 if (theBufferList().exists(s))
2439                         buf = theBufferList().getBuffer(s);
2440                 else if (s.exists()) {
2441                         buf = loadDocument(s);
2442                         buf->updateLabels();
2443                         buf->errors("Parse");
2444                 } else {
2445                         message(bformat(
2446                                         _("File does not exist: %1$s"),
2447                                         makeDisplayPath(file_name)));
2448                         return false;
2449                 }
2450         }
2451         setBuffer(buf);
2452         documentBufferView()->setCursorFromRow(row);
2453         return true;
2454 }
2455
2456
2457 bool GuiView::dispatch(FuncRequest const & cmd)
2458 {
2459         BufferView * bv = currentBufferView();
2460         // By default we won't need any update.
2461         if (bv)
2462                 bv->cursor().updateFlags(Update::None);
2463
2464         Buffer * doc_buffer = documentBufferView()
2465                 ? &(documentBufferView()->buffer()) : 0;
2466
2467         bool dispatched = true;
2468
2469         if (cmd.origin == FuncRequest::TOC) {
2470                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
2471                 toc->doDispatch(bv->cursor(), cmd);
2472                 return true;
2473         }
2474
2475         switch(cmd.action) {
2476                 case LFUN_BUFFER_CHILD_OPEN:
2477                         openChildDocument(to_utf8(cmd.argument()));
2478                         break;
2479
2480                 case LFUN_BUFFER_IMPORT:
2481                         importDocument(to_utf8(cmd.argument()));
2482                         break;
2483
2484                 case LFUN_BUFFER_SWITCH:
2485                         if (FileName::isAbsolute(to_utf8(cmd.argument()))) {
2486                                 Buffer * buffer =
2487                                         theBufferList().getBuffer(FileName(to_utf8(cmd.argument())));
2488                                 if (buffer)
2489                                         setBuffer(buffer);
2490                                 else
2491                                         message(_("Document not loaded"));
2492                         }
2493                         break;
2494
2495                 case LFUN_BUFFER_NEXT:
2496                         gotoNextOrPreviousBuffer(NEXTBUFFER);
2497                         break;
2498
2499                 case LFUN_BUFFER_PREVIOUS:
2500                         gotoNextOrPreviousBuffer(PREVBUFFER);
2501                         break;
2502
2503                 case LFUN_COMMAND_EXECUTE: {
2504                         bool const show_it = cmd.argument() != "off";
2505                         // FIXME: this is a hack, "minibuffer" should not be
2506                         // hardcoded.
2507                         if (GuiToolbar * t = toolbar("minibuffer")) {
2508                                 t->setVisible(show_it);
2509                                 if (show_it && t->commandBuffer())
2510                                         t->commandBuffer()->setFocus();
2511                         }
2512                         break;
2513                 }
2514                 case LFUN_DROP_LAYOUTS_CHOICE:
2515                         d.layout_->showPopup();
2516                         break;
2517
2518                 case LFUN_MENU_OPEN:
2519                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
2520                                 menu->exec(QCursor::pos());
2521                         break;
2522
2523                 case LFUN_FILE_INSERT:
2524                         insertLyXFile(cmd.argument());
2525                         break;
2526                 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2527                         insertPlaintextFile(cmd.argument(), true);
2528                         break;
2529
2530                 case LFUN_FILE_INSERT_PLAINTEXT:
2531                         insertPlaintextFile(cmd.argument(), false);
2532                         break;
2533
2534                 case LFUN_BUFFER_RELOAD: {
2535                         LASSERT(doc_buffer, break);
2536                         docstring const file = makeDisplayPath(doc_buffer->absFileName(), 20);
2537                         docstring text = bformat(_("Any changes will be lost. Are you sure "
2538                                                              "you want to revert to the saved version of the document %1$s?"), file);
2539                         int const ret = Alert::prompt(_("Revert to saved document?"),
2540                                 text, 1, 1, _("&Revert"), _("&Cancel"));
2541
2542                         if (ret == 0)
2543                                 reloadBuffer();
2544                         break;
2545                 }
2546
2547                 case LFUN_BUFFER_WRITE:
2548                         LASSERT(doc_buffer, break);
2549                         saveBuffer(*doc_buffer);
2550                         break;
2551
2552                 case LFUN_BUFFER_WRITE_AS:
2553                         LASSERT(doc_buffer, break);
2554                         renameBuffer(*doc_buffer, cmd.argument());
2555                         break;
2556
2557                 case LFUN_BUFFER_WRITE_ALL: {
2558                         Buffer * first = theBufferList().first();
2559                         if (!first)
2560                                 break;
2561                         message(_("Saving all documents..."));
2562                         // We cannot use a for loop as the buffer list cycles.
2563                         Buffer * b = first;
2564                         do {
2565                                 if (!b->isClean()) {
2566                                         saveBuffer(*b);
2567                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
2568                                 }
2569                                 b = theBufferList().next(b);
2570                         } while (b != first);
2571                         message(_("All documents saved."));
2572                         break;
2573                 }
2574
2575                 case LFUN_BUFFER_CLOSE:
2576                         closeBuffer();
2577                         break;
2578
2579                 case LFUN_BUFFER_CLOSE_ALL:
2580                         closeBufferAll();
2581                         break;
2582
2583                 case LFUN_TOOLBAR_TOGGLE: {
2584                         string const name = cmd.getArg(0);
2585                         if (GuiToolbar * t = toolbar(name))
2586                                 t->toggle();
2587                         break;
2588                 }
2589
2590                 case LFUN_DIALOG_UPDATE: {
2591                         string const name = to_utf8(cmd.argument());
2592                         if (currentBufferView()) {
2593                                 Inset * inset = currentBufferView()->editedInset(name);
2594                                 // Can only update a dialog connected to an existing inset
2595                                 if (!inset)
2596                                         break;
2597                                 // FIXME: get rid of this indirection; GuiView ask the inset
2598                                 // if he is kind enough to update itself...
2599                                 FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
2600                                 inset->dispatch(currentBufferView()->cursor(), fr);
2601                         } else if (name == "paragraph") {
2602                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
2603                         } else if (name == "prefs" || name == "document") {
2604                                 updateDialog(name, string());
2605                         }
2606                         break;
2607                 }
2608
2609                 case LFUN_DIALOG_TOGGLE: {
2610                         if (isDialogVisible(cmd.getArg(0)))
2611                                 dispatch(FuncRequest(LFUN_DIALOG_HIDE, cmd.argument()));
2612                         else
2613                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, cmd.argument()));
2614                         break;
2615                 }
2616
2617                 case LFUN_DIALOG_DISCONNECT_INSET:
2618                         disconnectDialog(to_utf8(cmd.argument()));
2619                         break;
2620
2621                 case LFUN_DIALOG_HIDE: {
2622                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
2623                         break;
2624                 }
2625
2626                 case LFUN_DIALOG_SHOW: {
2627                         string const name = cmd.getArg(0);
2628                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
2629
2630                         if (name == "character") {
2631                                 data = freefont2string();
2632                                 if (!data.empty())
2633                                         showDialog("character", data);
2634                         } else if (name == "latexlog") {
2635                                 Buffer::LogType type;
2636                                 string const logfile = doc_buffer->logName(&type);
2637                                 switch (type) {
2638                                 case Buffer::latexlog:
2639                                         data = "latex ";
2640                                         break;
2641                                 case Buffer::buildlog:
2642                                         data = "literate ";
2643                                         break;
2644                                 }
2645                                 data += Lexer::quoteString(logfile);
2646                                 showDialog("log", data);
2647                         } else if (name == "vclog") {
2648                                 string const data = "vc " +
2649                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
2650                                 showDialog("log", data);
2651                         } else if (name == "symbols") {
2652                                 data = bv->cursor().getEncoding()->name();
2653                                 if (!data.empty())
2654                                         showDialog("symbols", data);
2655                         // bug 5274
2656                         } else if (name == "prefs" && isFullScreen()) {
2657                                 FuncRequest fr(LFUN_INSET_INSERT, "fullscreen");
2658                                 lfunUiToggle(fr);
2659                                 showDialog("prefs", data);
2660                         } else
2661                                 showDialog(name, data);
2662                         break;
2663                 }
2664
2665                 case LFUN_MESSAGE:
2666                         message(cmd.argument());
2667                         break;
2668
2669                 case LFUN_UI_TOGGLE:
2670                         lfunUiToggle(cmd);
2671                         // Make sure the keyboard focus stays in the work area.
2672                         setFocus();
2673                         break;
2674
2675                 case LFUN_SPLIT_VIEW: {
2676                         LASSERT(doc_buffer, break);
2677                         string const orientation = cmd.getArg(0);
2678                         d.splitter_->setOrientation(orientation == "vertical"
2679                                 ? Qt::Vertical : Qt::Horizontal);
2680                         TabWorkArea * twa = addTabWorkArea();
2681                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
2682                         setCurrentWorkArea(wa);
2683                         break;
2684                 }
2685                 case LFUN_CLOSE_TAB_GROUP:
2686                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
2687                                 closeTabWorkArea(twa);
2688                                 d.current_work_area_ = 0;
2689                                 twa = d.currentTabWorkArea();
2690                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
2691                                 if (twa) {
2692                                         // Make sure the work area is up to date.
2693                                         setCurrentWorkArea(twa->currentWorkArea());
2694                                 } else {
2695                                         setCurrentWorkArea(0);
2696                                 }
2697                         }
2698                         break;
2699
2700                 case LFUN_COMPLETION_INLINE:
2701                         if (d.current_work_area_)
2702                                 d.current_work_area_->completer().showInline();
2703                         break;
2704
2705                 case LFUN_COMPLETION_POPUP:
2706                         if (d.current_work_area_)
2707                                 d.current_work_area_->completer().showPopup();
2708                         break;
2709
2710
2711                 case LFUN_COMPLETION_COMPLETE:
2712                         if (d.current_work_area_)
2713                                 d.current_work_area_->completer().tab();
2714                         break;
2715
2716                 case LFUN_COMPLETION_CANCEL:
2717                         if (d.current_work_area_) {
2718                                 if (d.current_work_area_->completer().popupVisible())
2719                                         d.current_work_area_->completer().hidePopup();
2720                                 else
2721                                         d.current_work_area_->completer().hideInline();
2722                         }
2723                         break;
2724
2725                 case LFUN_COMPLETION_ACCEPT:
2726                         if (d.current_work_area_)
2727                                 d.current_work_area_->completer().activate();
2728                         break;
2729
2730                 case LFUN_BUFFER_ZOOM_IN:
2731                 case LFUN_BUFFER_ZOOM_OUT:
2732                         if (cmd.argument().empty()) {
2733                                 if (cmd.action == LFUN_BUFFER_ZOOM_IN)
2734                                         lyxrc.zoom += 20;
2735                                 else
2736                                         lyxrc.zoom -= 20;
2737                         } else
2738                                 lyxrc.zoom += convert<int>(cmd.argument());
2739
2740                         if (lyxrc.zoom < 10)
2741                                 lyxrc.zoom = 10;
2742
2743                         // The global QPixmapCache is used in GuiPainter to cache text
2744                         // painting so we must reset it.
2745                         QPixmapCache::clear();
2746                         guiApp->fontLoader().update();
2747                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
2748                         break;
2749
2750                 case LFUN_VC_REGISTER:
2751                 case LFUN_VC_CHECK_IN:
2752                 case LFUN_VC_CHECK_OUT:
2753                 case LFUN_VC_LOCKING_TOGGLE:
2754                 case LFUN_VC_REVERT:
2755                 case LFUN_VC_UNDO_LAST:
2756                 case LFUN_VC_COMMAND:
2757                         dispatchVC(cmd);
2758                         break;
2759
2760                 case LFUN_SERVER_GOTO_FILE_ROW:
2761                         goToFileRow(to_utf8(cmd.argument()));
2762                         break;
2763
2764                 default:
2765                         dispatched = false;
2766                         break;
2767         }
2768
2769         // Part of automatic menu appearance feature.
2770         if (isFullScreen()) {
2771                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
2772                         menuBar()->hide();
2773                 if (statusBar()->isVisible())
2774                         statusBar()->hide();
2775         }
2776
2777         return dispatched;
2778 }
2779
2780
2781 void GuiView::lfunUiToggle(FuncRequest const & cmd)
2782 {
2783         string const arg = cmd.getArg(0);
2784         if (arg == "scrollbar") {
2785                 // hide() is of no help
2786                 if (d.current_work_area_->verticalScrollBarPolicy() ==
2787                         Qt::ScrollBarAlwaysOff)
2788
2789                         d.current_work_area_->setVerticalScrollBarPolicy(
2790                                 Qt::ScrollBarAsNeeded);
2791                 else
2792                         d.current_work_area_->setVerticalScrollBarPolicy(
2793                                 Qt::ScrollBarAlwaysOff);
2794                 return;
2795         }
2796         if (arg == "statusbar") {
2797                 statusBar()->setVisible(!statusBar()->isVisible());
2798                 return;
2799         }
2800         if (arg == "menubar") {
2801                 menuBar()->setVisible(!menuBar()->isVisible());
2802                 return;
2803         }
2804 #if QT_VERSION >= 0x040300
2805         if (arg == "frame") {
2806                 int l, t, r, b;
2807                 getContentsMargins(&l, &t, &r, &b);
2808                 //are the frames in default state?
2809                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
2810                 if (l == 0) {
2811                         setContentsMargins(-2, -2, -2, -2);
2812                 } else {
2813                         setContentsMargins(0, 0, 0, 0);
2814                 }
2815                 return;
2816         }
2817 #endif
2818         if (arg == "fullscreen") {
2819                 toggleFullScreen();
2820                 return;
2821         }
2822
2823         message(bformat("LFUN_UI_TOGGLE " + _("%1$s unknown command!"), from_utf8(arg)));
2824 }
2825
2826
2827 void GuiView::toggleFullScreen()
2828 {
2829         if (isFullScreen()) {
2830                 for (int i = 0; i != d.splitter_->count(); ++i)
2831                         d.tabWorkArea(i)->setFullScreen(false);
2832 #if QT_VERSION >= 0x040300
2833                 setContentsMargins(0, 0, 0, 0);
2834 #endif
2835                 setWindowState(windowState() ^ Qt::WindowFullScreen);
2836                 restoreLayout();
2837                 menuBar()->show();
2838                 statusBar()->show();
2839         } else {
2840                 // bug 5274
2841                 hideDialogs("prefs", 0);
2842                 for (int i = 0; i != d.splitter_->count(); ++i)
2843                         d.tabWorkArea(i)->setFullScreen(true);
2844 #if QT_VERSION >= 0x040300
2845                 setContentsMargins(-2, -2, -2, -2);
2846 #endif
2847                 saveLayout();
2848                 setWindowState(windowState() ^ Qt::WindowFullScreen);
2849                 statusBar()->hide();
2850                 if (lyxrc.full_screen_menubar)
2851                         menuBar()->hide();
2852                 if (lyxrc.full_screen_toolbars) {
2853                         ToolbarMap::iterator end = d.toolbars_.end();
2854                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
2855                                 it->second->hide();
2856                 }
2857         }
2858
2859         // give dialogs like the TOC a chance to adapt
2860         updateDialogs();
2861 }
2862
2863
2864 Buffer const * GuiView::updateInset(Inset const * inset)
2865 {
2866         if (!d.current_work_area_)
2867                 return 0;
2868
2869         if (inset)
2870                 d.current_work_area_->scheduleRedraw();
2871
2872         return &d.current_work_area_->bufferView().buffer();
2873 }
2874
2875
2876 void GuiView::restartCursor()
2877 {
2878         /* When we move around, or type, it's nice to be able to see
2879          * the cursor immediately after the keypress.
2880          */
2881         if (d.current_work_area_)
2882                 d.current_work_area_->startBlinkingCursor();
2883
2884         // Take this occasion to update the other GUI elements.
2885         updateDialogs();
2886         updateStatusBar();
2887 }
2888
2889
2890 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
2891 {
2892         if (d.current_work_area_)
2893                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
2894 }
2895
2896 namespace {
2897
2898 // This list should be kept in sync with the list of insets in
2899 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
2900 // dialog should have the same name as the inset.
2901 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
2902 // docs in LyXAction.cpp.
2903
2904 char const * const dialognames[] = {
2905 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
2906 "citation", "document", "errorlist", "ert", "external", "file", "findreplace",
2907 "findreplaceadv", "float", "graphics", "href", "include", "index",
2908 "index_print", "info", "listings", "label", "log", "mathdelimiter",
2909 "mathmatrix", "mathspace", "nomenclature", "nomencl_print", "note",
2910 "paragraph", "phantom", "prefs", "print", "ref", "sendto", "space",
2911 "spellchecker", "symbols", "tabular", "tabularcreate", "thesaurus", "texinfo",
2912 "toc", "view-source", "vspace", "wrap" };
2913
2914 char const * const * const end_dialognames =
2915         dialognames + (sizeof(dialognames) / sizeof(char *));
2916
2917 class cmpCStr {
2918 public:
2919         cmpCStr(char const * name) : name_(name) {}
2920         bool operator()(char const * other) {
2921                 return strcmp(other, name_) == 0;
2922         }
2923 private:
2924         char const * name_;
2925 };
2926
2927
2928 bool isValidName(string const & name)
2929 {
2930         return find_if(dialognames, end_dialognames,
2931                             cmpCStr(name.c_str())) != end_dialognames;
2932 }
2933
2934 } // namespace anon
2935
2936
2937 void GuiView::resetDialogs()
2938 {
2939         // Make sure that no LFUN uses any LyXView.
2940         guiApp->setCurrentView(0);
2941         saveLayout();
2942         menuBar()->clear();
2943         constructToolbars();
2944         guiApp->menus().fillMenuBar(menuBar(), this, false);
2945         d.layout_->updateContents(true);
2946         // Now update controls with current buffer.
2947         guiApp->setCurrentView(this);
2948         restoreLayout();
2949         restartCursor();
2950 }
2951
2952
2953 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
2954 {
2955         if (!isValidName(name))
2956                 return 0;
2957
2958         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
2959
2960         if (it != d.dialogs_.end()) {
2961                 if (hide_it)
2962                         it->second->hideView();
2963                 return it->second.get();
2964         }
2965
2966         Dialog * dialog = build(name);
2967         d.dialogs_[name].reset(dialog);
2968         if (lyxrc.allow_geometry_session)
2969                 dialog->restoreSession();
2970         if (hide_it)
2971                 dialog->hideView();
2972         return dialog;
2973 }
2974
2975
2976 void GuiView::showDialog(string const & name, string const & data,
2977         Inset * inset)
2978 {
2979         if (d.in_show_)
2980                 return;
2981
2982         d.in_show_ = true;
2983         try {
2984                 Dialog * dialog = findOrBuild(name, false);
2985                 if (dialog) {
2986                         dialog->showData(data);
2987                         if (inset && currentBufferView())
2988                                 currentBufferView()->editInset(name, inset);
2989                 }
2990         }
2991         catch (ExceptionMessage const & ex) {
2992                 d.in_show_ = false;
2993                 throw ex;
2994         }
2995         d.in_show_ = false;
2996 }
2997
2998
2999 bool GuiView::isDialogVisible(string const & name) const
3000 {
3001         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3002         if (it == d.dialogs_.end())
3003                 return false;
3004         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
3005 }
3006
3007
3008 void GuiView::hideDialog(string const & name, Inset * inset)
3009 {
3010         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3011         if (it == d.dialogs_.end())
3012                 return;
3013
3014         if (inset && currentBufferView()
3015                 && inset != currentBufferView()->editedInset(name))
3016                 return;
3017
3018         Dialog * const dialog = it->second.get();
3019         if (dialog->isVisibleView())
3020                 dialog->hideView();
3021         if (currentBufferView())
3022                 currentBufferView()->editInset(name, 0);
3023 }
3024
3025
3026 void GuiView::disconnectDialog(string const & name)
3027 {
3028         if (!isValidName(name))
3029                 return;
3030         if (currentBufferView())
3031                 currentBufferView()->editInset(name, 0);
3032 }
3033
3034
3035 void GuiView::hideAll() const
3036 {
3037         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3038         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3039
3040         for(; it != end; ++it)
3041                 it->second->hideView();
3042 }
3043
3044
3045 void GuiView::updateDialogs()
3046 {
3047         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3048         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3049
3050         for(; it != end; ++it) {
3051                 Dialog * dialog = it->second.get();
3052                 if (dialog && dialog->isVisibleView())
3053                         dialog->checkStatus();
3054         }
3055         updateToolbars();
3056         updateLayoutList();
3057 }
3058
3059
3060 // will be replaced by a proper factory...
3061 Dialog * createGuiAbout(GuiView & lv);
3062 Dialog * createGuiBibitem(GuiView & lv);
3063 Dialog * createGuiBibtex(GuiView & lv);
3064 Dialog * createGuiBox(GuiView & lv);
3065 Dialog * createGuiBranch(GuiView & lv);
3066 Dialog * createGuiChanges(GuiView & lv);
3067 Dialog * createGuiCharacter(GuiView & lv);
3068 Dialog * createGuiCitation(GuiView & lv);
3069 Dialog * createGuiDelimiter(GuiView & lv);
3070 Dialog * createGuiDocument(GuiView & lv);
3071 Dialog * createGuiErrorList(GuiView & lv);
3072 Dialog * createGuiERT(GuiView & lv);
3073 Dialog * createGuiExternal(GuiView & lv);
3074 Dialog * createGuiFloat(GuiView & lv);
3075 Dialog * createGuiGraphics(GuiView & lv);
3076 Dialog * createGuiInclude(GuiView & lv);
3077 Dialog * createGuiIndex(GuiView & lv);
3078 Dialog * createGuiInfo(GuiView & lv);
3079 Dialog * createGuiLabel(GuiView & lv);
3080 Dialog * createGuiListings(GuiView & lv);
3081 Dialog * createGuiLog(GuiView & lv);
3082 Dialog * createGuiMathHSpace(GuiView & lv);
3083 Dialog * createGuiMathMatrix(GuiView & lv);
3084 Dialog * createGuiNomenclature(GuiView & lv);
3085 Dialog * createGuiNote(GuiView & lv);
3086 Dialog * createGuiParagraph(GuiView & lv);
3087 Dialog * createGuiPhantom(GuiView & lv);
3088 Dialog * createGuiPreferences(GuiView & lv);
3089 Dialog * createGuiPrint(GuiView & lv);
3090 Dialog * createGuiPrintindex(GuiView & lv);
3091 Dialog * createGuiPrintNomencl(GuiView & lv);
3092 Dialog * createGuiRef(GuiView & lv);
3093 Dialog * createGuiSearch(GuiView & lv);
3094 Dialog * createGuiSearchAdv(GuiView & lv);
3095 Dialog * createGuiSendTo(GuiView & lv);
3096 Dialog * createGuiShowFile(GuiView & lv);
3097 Dialog * createGuiSpellchecker(GuiView & lv);
3098 Dialog * createGuiSymbols(GuiView & lv);
3099 Dialog * createGuiTabularCreate(GuiView & lv);
3100 Dialog * createGuiTabular(GuiView & lv);
3101 Dialog * createGuiTexInfo(GuiView & lv);
3102 Dialog * createGuiTextHSpace(GuiView & lv);
3103 Dialog * createGuiToc(GuiView & lv);
3104 Dialog * createGuiThesaurus(GuiView & lv);
3105 Dialog * createGuiHyperlink(GuiView & lv);
3106 Dialog * createGuiVSpace(GuiView & lv);
3107 Dialog * createGuiViewSource(GuiView & lv);
3108 Dialog * createGuiWrap(GuiView & lv);
3109
3110
3111 Dialog * GuiView::build(string const & name)
3112 {
3113         LASSERT(isValidName(name), return 0);
3114
3115         if (name == "aboutlyx")
3116                 return createGuiAbout(*this);
3117         if (name == "bibitem")
3118                 return createGuiBibitem(*this);
3119         if (name == "bibtex")
3120                 return createGuiBibtex(*this);
3121         if (name == "box")
3122                 return createGuiBox(*this);
3123         if (name == "branch")
3124                 return createGuiBranch(*this);
3125         if (name == "changes")
3126                 return createGuiChanges(*this);
3127         if (name == "character")
3128                 return createGuiCharacter(*this);
3129         if (name == "citation")
3130                 return createGuiCitation(*this);
3131         if (name == "document")
3132                 return createGuiDocument(*this);
3133         if (name == "errorlist")
3134                 return createGuiErrorList(*this);
3135         if (name == "ert")
3136                 return createGuiERT(*this);
3137         if (name == "external")
3138                 return createGuiExternal(*this);
3139         if (name == "file")
3140                 return createGuiShowFile(*this);
3141         if (name == "findreplace")
3142                 return createGuiSearch(*this);
3143         if (name == "findreplaceadv")
3144                 return createGuiSearchAdv(*this);
3145         if (name == "float")
3146                 return createGuiFloat(*this);
3147         if (name == "graphics")
3148                 return createGuiGraphics(*this);
3149         if (name == "href")
3150                 return createGuiHyperlink(*this);
3151         if (name == "include")
3152                 return createGuiInclude(*this);
3153         if (name == "index")
3154                 return createGuiIndex(*this);
3155         if (name == "index_print")
3156                 return createGuiPrintindex(*this);
3157         if (name == "info")
3158                 return createGuiInfo(*this);
3159         if (name == "label")
3160                 return createGuiLabel(*this);
3161         if (name == "listings")
3162                 return createGuiListings(*this);
3163         if (name == "log")
3164                 return createGuiLog(*this);
3165         if (name == "mathdelimiter")
3166                 return createGuiDelimiter(*this);
3167         if (name == "mathspace")
3168                 return createGuiMathHSpace(*this);
3169         if (name == "mathmatrix")
3170                 return createGuiMathMatrix(*this);
3171         if (name == "nomenclature")
3172                 return createGuiNomenclature(*this);
3173         if (name == "nomencl_print")
3174                 return createGuiPrintNomencl(*this);
3175         if (name == "note")
3176                 return createGuiNote(*this);
3177         if (name == "paragraph")
3178                 return createGuiParagraph(*this);
3179         if (name == "phantom")
3180                 return createGuiPhantom(*this);
3181         if (name == "prefs")
3182                 return createGuiPreferences(*this);
3183         if (name == "print")
3184                 return createGuiPrint(*this);
3185         if (name == "ref")
3186                 return createGuiRef(*this);
3187         if (name == "sendto")
3188                 return createGuiSendTo(*this);
3189         if (name == "space")
3190                 return createGuiTextHSpace(*this);
3191         if (name == "spellchecker")
3192                 return createGuiSpellchecker(*this);
3193         if (name == "symbols")
3194                 return createGuiSymbols(*this);
3195         if (name == "tabular")
3196                 return createGuiTabular(*this);
3197         if (name == "tabularcreate")
3198                 return createGuiTabularCreate(*this);
3199         if (name == "texinfo")
3200                 return createGuiTexInfo(*this);
3201         if (name == "thesaurus")
3202                 return createGuiThesaurus(*this);
3203         if (name == "toc")
3204                 return createGuiToc(*this);
3205         if (name == "view-source")
3206                 return createGuiViewSource(*this);
3207         if (name == "vspace")
3208                 return createGuiVSpace(*this);
3209         if (name == "wrap")
3210                 return createGuiWrap(*this);
3211
3212         return 0;
3213 }
3214
3215
3216 } // namespace frontend
3217 } // namespace lyx
3218
3219 #include "moc_GuiView.cpp"