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 "DispatchResult.h"
  20 #include "FileDialog.h"
  21 #include "FontLoader.h"
  22 #include "GuiApplication.h"
  23 #include "GuiCommandBuffer.h"
  24 #include "GuiCompleter.h"
  25 #include "GuiKeySymbol.h"
  26 #include "GuiToc.h"
  27 #include "GuiToolbar.h"
  28 #include "GuiWorkArea.h"
  29 #include "GuiProgress.h"
  30 #include "LayoutBox.h"
  31 #include "Menus.h"
  32 #include "TocModel.h"
  33
  34 #include "qt_helpers.h"
  35
  36 #include "frontends/alert.h"
  37
  38 #include "buffer_funcs.h"
  39 #include "Buffer.h"
  40 #include "BufferList.h"
  41 #include "BufferParams.h"
  42 #include "BufferView.h"
  43 #include "Compare.h"
  44 #include "Converter.h"
  45 #include "Cursor.h"
  46 #include "CutAndPaste.h"
  47 #include "Encoding.h"
  48 #include "ErrorList.h"
  49 #include "Format.h"
  50 #include "FuncStatus.h"
  51 #include "FuncRequest.h"
  52 #include "Intl.h"
  53 #include "Layout.h"
  54 #include "Lexer.h"
  55 #include "LyXAction.h"
  56 #include "LyX.h"
  57 #include "LyXRC.h"
  58 #include "LyXVC.h"
  59 #include "Paragraph.h"
  60 #include "SpellChecker.h"
  61 #include "TexRow.h"
  62 #include "TextClass.h"
  63 #include "Text.h"
  64 #include "Toolbars.h"
  65 #include "version.h"
  66
  67 #include "support/convert.h"
  68 #include "support/debug.h"
  69 #include "support/ExceptionMessage.h"
  70 #include "support/FileName.h"
  71 #include "support/filetools.h"
  72 #include "support/gettext.h"
  73 #include "support/filetools.h"
  74 #include "support/ForkedCalls.h"
  75 #include "support/lassert.h"
  76 #include "support/lstrings.h"
  77 #include "support/os.h"
  78 #include "support/Package.h"
  79 #include "support/Path.h"
  80 #include "support/Systemcall.h"
  81 #include "support/Timeout.h"
  82 #include "support/ProgressInterface.h"
  83
  84 #include <QAction>
  85 #include <QApplication>
  86 #include <QCloseEvent>
  87 #include <QDebug>
  88 #include <QDesktopWidget>
  89 #include <QDragEnterEvent>
  90 #include <QDropEvent>
  91 #include <QList>
  92 #include <QMenu>
  93 #include <QMenuBar>
  94 #include <QPainter>
  95 #include <QPixmap>
  96 #include <QPixmapCache>
  97 #include <QPoint>
  98 #include <QPushButton>
  99 #include <QSettings>
 100 #include <QShowEvent>
 101 #include <QSplitter>
 102 #include <QStackedWidget>
 103 #include <QStatusBar>
 104 #include <QTime>
 105 #include <QTimer>
 106 #include <QToolBar>
 107 #include <QUrl>
 108 #include <QScrollBar>
 109
 110
 111
 112 #define EXPORT_in_THREAD 1
 113
 114 // QtConcurrent was introduced in Qt 4.4
 115 #if (QT_VERSION >= 0x040400)
 116 #include <QFuture>
 117 #include <QFutureWatcher>
 118 #include <QtConcurrentRun>
 119 #endif
 120
 121 #include "support/bind.h"
 122
 123 #include <sstream>
 124
 125 #ifdef HAVE_SYS_TIME_H
 126 # include <sys/time.h>
 127 #endif
 128 #ifdef HAVE_UNISTD_H
 129 # include <unistd.h>
 130 #endif
 131
 132 using namespace std;
 133 using namespace lyx::support;
 134
 135 namespace lyx {
 136 namespace frontend {
 137
 138 namespace {
 139
 140 class BackgroundWidget : public QWidget
 141 {
 142 public:
 143         BackgroundWidget()
 144         {
 145                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 146                 if (!lyxrc.show_banner)
 147                         return;
 148                 /// The text to be written on top of the pixmap
 149                 QString const text = lyx_version ?
 150                         qt_("version ") + lyx_version : qt_("unknown version");
 151                 splash_ = getPixmap("images/", "banner", "png");
 152
 153                 QPainter pain(&splash_);
 154                 pain.setPen(QColor(0, 0, 0));
 155                 QFont font;
 156                 // The font used to display the version info
 157                 font.setStyleHint(QFont::SansSerif);
 158                 font.setWeight(QFont::Bold);
 159                 font.setPointSize(int(toqstr(lyxrc.font_sizes[FONT_SIZE_LARGE]).toDouble()));
 160                 int width = QFontMetrics(font).width(text);
 161                 pain.setFont(font);
 162                 pain.drawText(397 - width, 15, text);
 163                 setFocusPolicy(Qt::StrongFocus);
 164         }
 165
 166         void paintEvent(QPaintEvent *)
 167         {
 168                 int x = (width() - splash_.width()) / 2;
 169                 int y = (height() - splash_.height()) / 2;
 170                 QPainter pain(this);
 171                 pain.drawPixmap(x, y, splash_);
 172         }
 173
 174         void keyPressEvent(QKeyEvent * ev)
 175         {
 176                 KeySymbol sym;
 177                 setKeySymbol(&sym, ev);
 178                 if (sym.isOK()) {
 179                         guiApp->processKeySym(sym, q_key_state(ev->modifiers()));
 180                         ev->accept();
 181                 } else {
 182                         ev->ignore();
 183                 }
 184         }
 185
 186 private:
 187         QPixmap splash_;
 188 };
 189
 190
 191 /// Toolbar store providing access to individual toolbars by name.
 192 typedef map<string, GuiToolbar *> ToolbarMap;
 193
 194 typedef shared_ptr<Dialog> DialogPtr;
 195
 196 } // namespace anon
 197
 198
 199 struct GuiView::GuiViewPrivate
 200 {
 201         GuiViewPrivate(GuiView * gv)
 202                 : gv_(gv), current_work_area_(0), current_main_work_area_(0),
 203                 layout_(0), autosave_timeout_(5000),
 204                 in_show_(false)
 205         {
 206                 // hardcode here the platform specific icon size
 207                 smallIconSize = 14;  // scaling problems
 208                 normalIconSize = 20; // ok, default
 209                 bigIconSize = 26;       // better for some math icons
 210
 211                 splitter_ = new QSplitter;
 212                 bg_widget_ = new BackgroundWidget;
 213                 stack_widget_ = new QStackedWidget;
 214                 stack_widget_->addWidget(bg_widget_);
 215                 stack_widget_->addWidget(splitter_);
 216                 setBackground();
 217
 218                 // TODO cleanup, remove the singleton, handle multiple Windows?
 219                 progress_ = ProgressInterface::instance();
 220                 if (!dynamic_cast<GuiProgress*>(progress_)) {
 221                         progress_ = new GuiProgress();  // TODO who deletes it
 222                         ProgressInterface::setInstance(progress_);
 223                 }
 224                 QObject::connect(
 225                                 dynamic_cast<GuiProgress*>(progress_),
 226                                 SIGNAL(updateStatusBarMessage(QString const&)),
 227                                 gv, SLOT(updateStatusBarMessage(QString const&)));
 228                 QObject::connect(
 229                                 dynamic_cast<GuiProgress*>(progress_),
 230                                 SIGNAL(clearMessageText()),
 231                                 gv, SLOT(clearMessageText()));
 232         }
 233
 234         ~GuiViewPrivate()
 235         {
 236                 delete splitter_;
 237                 delete bg_widget_;
 238                 delete stack_widget_;
 239         }
 240
 241         QMenu * toolBarPopup(GuiView * parent)
 242         {
 243                 // FIXME: translation
 244                 QMenu * menu = new QMenu(parent);
 245                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 246
 247                 QAction * smallIcons = new QAction(iconSizeGroup);
 248                 smallIcons->setText(qt_("Small-sized icons"));
 249                 smallIcons->setCheckable(true);
 250                 QObject::connect(smallIcons, SIGNAL(triggered()),
 251                         parent, SLOT(smallSizedIcons()));
 252                 menu->addAction(smallIcons);
 253
 254                 QAction * normalIcons = new QAction(iconSizeGroup);
 255                 normalIcons->setText(qt_("Normal-sized icons"));
 256                 normalIcons->setCheckable(true);
 257                 QObject::connect(normalIcons, SIGNAL(triggered()),
 258                         parent, SLOT(normalSizedIcons()));
 259                 menu->addAction(normalIcons);
 260
 261                 QAction * bigIcons = new QAction(iconSizeGroup);
 262                 bigIcons->setText(qt_("Big-sized icons"));
 263                 bigIcons->setCheckable(true);
 264                 QObject::connect(bigIcons, SIGNAL(triggered()),
 265                         parent, SLOT(bigSizedIcons()));
 266                 menu->addAction(bigIcons);
 267
 268                 unsigned int cur = parent->iconSize().width();
 269                 if ( cur == parent->d.smallIconSize)
 270                         smallIcons->setChecked(true);
 271                 else if (cur == parent->d.normalIconSize)
 272                         normalIcons->setChecked(true);
 273                 else if (cur == parent->d.bigIconSize)
 274                         bigIcons->setChecked(true);
 275
 276                 return menu;
 277         }
 278
 279         void setBackground()
 280         {
 281                 stack_widget_->setCurrentWidget(bg_widget_);
 282                 bg_widget_->setUpdatesEnabled(true);
 283                 bg_widget_->setFocus();
 284         }
 285
 286         int tabWorkAreaCount()
 287         {
 288                 return splitter_->count();
 289         }
 290
 291         TabWorkArea * tabWorkArea(int i)
 292         {
 293                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 294         }
 295
 296         TabWorkArea * currentTabWorkArea()
 297         {
 298                 int areas = tabWorkAreaCount();
 299                 if (areas == 1)
 300                         // The first TabWorkArea is always the first one, if any.
 301                         return tabWorkArea(0);
 302
 303                 for (int i = 0; i != areas;  ++i) {
 304                         TabWorkArea * twa = tabWorkArea(i);
 305                         if (current_main_work_area_ == twa->currentWorkArea())
 306                                 return twa;
 307                 }
 308
 309                 // None has the focus so we just take the first one.
 310                 return tabWorkArea(0);
 311         }
 312
 313 #if (QT_VERSION >= 0x040400)
 314         void setPreviewFuture(QFuture<docstring> const & f)
 315         {
 316                 if (processing_thread_watcher_.isRunning()) {
 317                         // we prefer to cancel this preview in order to keep a snappy
 318                         // interface.
 319                         return;
 320                 }
 321                 processing_thread_watcher_.setFuture(f);
 322         }
 323 #endif
 324
 325 public:
 326         GuiView * gv_;
 327         GuiWorkArea * current_work_area_;
 328         GuiWorkArea * current_main_work_area_;
 329         QSplitter * splitter_;
 330         QStackedWidget * stack_widget_;
 331         BackgroundWidget * bg_widget_;
 332         /// view's toolbars
 333         ToolbarMap toolbars_;
 334         ProgressInterface* progress_;
 335         /// The main layout box.
 336         /**
 337          * \warning Don't Delete! The layout box is actually owned by
 338          * whichever toolbar contains it. All the GuiView class needs is a
 339          * means of accessing it.
 340          *
 341          * FIXME: replace that with a proper model so that we are not limited
 342          * to only one dialog.
 343          */
 344         LayoutBox * layout_;
 345
 346         ///
 347         map<string, DialogPtr> dialogs_;
 348
 349         unsigned int smallIconSize;
 350         unsigned int normalIconSize;
 351         unsigned int bigIconSize;
 352         ///
 353         QTimer statusbar_timer_;
 354         /// auto-saving of buffers
 355         Timeout autosave_timeout_;
 356         /// flag against a race condition due to multiclicks, see bug #1119
 357         bool in_show_;
 358
 359         ///
 360         TocModels toc_models_;
 361
 362 #if (QT_VERSION >= 0x040400)
 363         ///
 364         QFutureWatcher<docstring> autosave_watcher_;
 365         QFutureWatcher<docstring> processing_thread_watcher_;
 366         ///
 367         string last_export_format;
 368 #else
 369         struct DummyWatcher { bool isRunning(){return false;} };
 370         DummyWatcher processing_thread_watcher_;
 371 #endif
 372
 373         static QSet<Buffer const *> busyBuffers;
 374         static docstring previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 375         static docstring exportAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 376         static docstring compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 377         static docstring saveAndDestroy(Buffer const * orig, Buffer * buffer, FileName const & fname);
 378
 379         template<class T>
 380         static docstring runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format, string const & msg);
 381
 382         // TODO syncFunc/previewFunc: use bind
 383         bool asyncBufferProcessing(string const & argument,
 384                                    Buffer const * used_buffer,
 385                                    docstring const & msg,
 386                                    docstring (*asyncFunc)(Buffer const *, Buffer *, string const &),
 387                                    bool (Buffer::*syncFunc)(string const &, bool, bool) const,
 388                                    bool (Buffer::*previewFunc)(string const &, bool) const);
 389
 390         QTimer processing_cursor_timer_;
 391         bool indicates_processing_;
 392         QMap<GuiWorkArea*, Qt::CursorShape> orig_cursors_;
 393         QVector<GuiWorkArea*> guiWorkAreas();
 394 };
 395
 396 QSet<Buffer const *> GuiView::GuiViewPrivate::busyBuffers;
 397
 398
 399 GuiView::GuiView(int id)
 400         : d(*new GuiViewPrivate(this)), id_(id), closing_(false)
 401 {
 402         // GuiToolbars *must* be initialised before the menu bar.
 403         normalSizedIcons(); // at least on Mac the default is 32 otherwise, which is huge
 404         constructToolbars();
 405
 406         // set ourself as the current view. This is needed for the menu bar
 407         // filling, at least for the static special menu item on Mac. Otherwise
 408         // they are greyed out.
 409         guiApp->setCurrentView(this);
 410
 411         // Fill up the menu bar.
 412         guiApp->menus().fillMenuBar(menuBar(), this, true);
 413
 414         setCentralWidget(d.stack_widget_);
 415
 416         // Start autosave timer
 417         if (lyxrc.autosave) {
 418                 d.autosave_timeout_.timeout.connect(bind(&GuiView::autoSave, this));
 419                 d.autosave_timeout_.setTimeout(lyxrc.autosave * 1000);
 420                 d.autosave_timeout_.start();
 421         }
 422         connect(&d.statusbar_timer_, SIGNAL(timeout()),
 423                 this, SLOT(clearMessage()));
 424
 425         // We don't want to keep the window in memory if it is closed.
 426         setAttribute(Qt::WA_DeleteOnClose, true);
 427
 428 #if (!defined(Q_WS_WIN) && !defined(Q_WS_MACX))
 429         // assign an icon to main form. We do not do it under Qt/Win or Qt/Mac,
 430         // since the icon is provided in the application bundle.
 431         setWindowIcon(getPixmap("images/", "lyx", "png"));
 432 #endif
 433
 434 #if (QT_VERSION >= 0x040300)
 435         // use tabbed dock area for multiple docks
 436         // (such as "source" and "messages")
 437         setDockOptions(QMainWindow::ForceTabbedDocks);
 438 #endif
 439
 440         // For Drag&Drop.
 441         setAcceptDrops(true);
 442
 443         statusBar()->setSizeGripEnabled(true);
 444         updateStatusBar();
 445
 446 #if (QT_VERSION >= 0x040400)
 447         connect(&d.autosave_watcher_, SIGNAL(finished()), this,
 448                 SLOT(processingThreadFinished()));
 449         connect(&d.processing_thread_watcher_, SIGNAL(finished()), this,
 450                 SLOT(processingThreadFinished()));
 451
 452         d.processing_cursor_timer_.setInterval(1000 * 3);
 453         connect(&d.processing_cursor_timer_, SIGNAL(timeout()), this,
 454                 SLOT(indicateProcessing()));
 455 #endif
 456
 457         connect(this, SIGNAL(triggerShowDialog(QString const &, QString const &, Inset *)),
 458                 SLOT(doShowDialog(QString const &, QString const &, Inset *)));
 459
 460         // Forbid too small unresizable window because it can happen
 461         // with some window manager under X11.
 462         setMinimumSize(300, 200);
 463
 464         if (lyxrc.allow_geometry_session) {
 465                 // Now take care of session management.
 466                 if (restoreLayout())
 467                         return;
 468         }
 469
 470         // no session handling, default to a sane size.
 471         setGeometry(50, 50, 690, 510);
 472         initToolbars();
 473
 474         // clear session data if any.
 475         QSettings settings;
 476         settings.remove("views");
 477 }
 478
 479
 480 GuiView::~GuiView()
 481 {
 482         delete &d;
 483 }
 484
 485
 486 QVector<GuiWorkArea*> GuiView::GuiViewPrivate::guiWorkAreas()
 487 {
 488         QVector<GuiWorkArea*> areas;
 489         for (int i = 0; i < tabWorkAreaCount(); i++) {
 490                 TabWorkArea* ta = tabWorkArea(i);
 491                 for (int u = 0; u < ta->count(); u++) {
 492                         areas << ta->workArea(u);
 493                 }
 494         }
 495         return areas;
 496 }
 497
 498 void GuiView::setCursorShapes(Qt::CursorShape shape)
 499 {
 500         QVector<GuiWorkArea*> areas = d.guiWorkAreas();
 501         Q_FOREACH(GuiWorkArea* wa, areas) {
 502                 wa->setCursorShape(shape);
 503         }
 504 }
 505
 506 void GuiView::restoreCursorShapes()
 507 {
 508         QVector<GuiWorkArea*> areas = d.guiWorkAreas();
 509         Q_FOREACH(GuiWorkArea* wa, areas) {
 510                 if (d.orig_cursors_.contains(wa)) {
 511                         wa->setCursorShape(d.orig_cursors_[wa]);
 512                 }
 513         }
 514 }
 515
 516 void GuiView::saveCursorShapes()
 517 {
 518         d.orig_cursors_.clear();
 519         QVector<GuiWorkArea*> areas = d.guiWorkAreas();
 520         Q_FOREACH(GuiWorkArea* wa, areas) {
 521                 d.orig_cursors_[wa] = wa->cursorShape();
 522         }
 523 }
 524
 525 void GuiView::indicateProcessing()
 526 {
 527         if (d.indicates_processing_) {
 528                 restoreCursorShapes();
 529         } else {
 530                 setCursorShapes(Qt::BusyCursor);
 531         }
 532         d.indicates_processing_ = !d.indicates_processing_;
 533 }
 534
 535 void GuiView::processingThreadStarted()
 536 {
 537         saveCursorShapes();
 538         d.indicates_processing_ = false;
 539         indicateProcessing();
 540         d.processing_cursor_timer_.start();
 541 }
 542
 543 void GuiView::processingThreadFinished()
 544 {
 545 #if (QT_VERSION >= 0x040400)
 546         QFutureWatcher<docstring> const * watcher =
 547                 static_cast<QFutureWatcher<docstring> const *>(sender());
 548         message(watcher->result());
 549         updateToolbars();
 550         errors(d.last_export_format);
 551         d.processing_cursor_timer_.stop();
 552         restoreCursorShapes();
 553         d.indicates_processing_ = false;
 554 #endif
 555 }
 556
 557
 558 void GuiView::saveLayout() const
 559 {
 560         QSettings settings;
 561         settings.beginGroup("views");
 562         settings.beginGroup(QString::number(id_));
 563 #ifdef Q_WS_X11
 564         settings.setValue("pos", pos());
 565         settings.setValue("size", size());
 566 #else
 567         settings.setValue("geometry", saveGeometry());
 568 #endif
 569         settings.setValue("layout", saveState(0));
 570         settings.setValue("icon_size", iconSize());
 571 }
 572
 573
 574 bool GuiView::restoreLayout()
 575 {
 576         QSettings settings;
 577         settings.beginGroup("views");
 578         settings.beginGroup(QString::number(id_));
 579         QString const icon_key = "icon_size";
 580         if (!settings.contains(icon_key))
 581                 return false;
 582
 583         //code below is skipped when when ~/.config/LyX is (re)created
 584         setIconSize(settings.value(icon_key).toSize());
 585 #ifdef Q_WS_X11
 586         QPoint pos = settings.value("pos", QPoint(50, 50)).toPoint();
 587         QSize size = settings.value("size", QSize(690, 510)).toSize();
 588         resize(size);
 589         move(pos);
 590 #else
 591         // Work-around for bug #6034: the window ends up in an undetermined
 592         // state when trying to restore a maximized window when it is
 593         // already maximized.
 594         if (!(windowState() & Qt::WindowMaximized))
 595                 if (!restoreGeometry(settings.value("geometry").toByteArray()))
 596                         setGeometry(50, 50, 690, 510);
 597 #endif
 598         // Make sure layout is correctly oriented.
 599         setLayoutDirection(qApp->layoutDirection());
 600
 601         // Allow the toc and view-source dock widget to be restored if needed.
 602         Dialog * dialog;
 603         if ((dialog = findOrBuild("toc", true)))
 604                 // see bug 5082. At least setup title and enabled state.
 605                 // Visibility will be adjusted by restoreState below.
 606                 dialog->prepareView();
 607         if ((dialog = findOrBuild("view-source", true)))
 608                 dialog->prepareView();
 609         if ((dialog = findOrBuild("progress", true)))
 610                 dialog->prepareView();
 611
 612         if (!restoreState(settings.value("layout").toByteArray(), 0))
 613                 initToolbars();
 614         updateDialogs();
 615         return true;
 616 }
 617
 618
 619 GuiToolbar * GuiView::toolbar(string const & name)
 620 {
 621         ToolbarMap::iterator it = d.toolbars_.find(name);
 622         if (it != d.toolbars_.end())
 623                 return it->second;
 624
 625         LYXERR(Debug::GUI, "Toolbar::display: no toolbar named " << name);
 626         return 0;
 627 }
 628
 629
 630 void GuiView::constructToolbars()
 631 {
 632         ToolbarMap::iterator it = d.toolbars_.begin();
 633         for (; it != d.toolbars_.end(); ++it)
 634                 delete it->second;
 635         d.toolbars_.clear();
 636
 637         // I don't like doing this here, but the standard toolbar
 638         // destroys this object when it's destroyed itself (vfr)
 639         d.layout_ = new LayoutBox(*this);
 640         d.stack_widget_->addWidget(d.layout_);
 641         d.layout_->move(0,0);
 642
 643         // extracts the toolbars from the backend
 644         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 645         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 646         for (; cit != end; ++cit)
 647                 d.toolbars_[cit->name] =  new GuiToolbar(*cit, *this);
 648 }
 649
 650
 651 void GuiView::initToolbars()
 652 {
 653         // extracts the toolbars from the backend
 654         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 655         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 656         for (; cit != end; ++cit) {
 657                 GuiToolbar * tb = toolbar(cit->name);
 658                 if (!tb)
 659                         continue;
 660                 int const visibility = guiApp->toolbars().defaultVisibility(cit->name);
 661                 bool newline = !(visibility & Toolbars::SAMEROW);
 662                 tb->setVisible(false);
 663                 tb->setVisibility(visibility);
 664
 665                 if (visibility & Toolbars::TOP) {
 666                         if (newline)
 667                                 addToolBarBreak(Qt::TopToolBarArea);
 668                         addToolBar(Qt::TopToolBarArea, tb);
 669                 }
 670
 671                 if (visibility & Toolbars::BOTTOM) {
 672                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 673 #if (QT_VERSION >= 0x040202)
 674                         if (newline)
 675                                 addToolBarBreak(Qt::BottomToolBarArea);
 676 #endif
 677                         addToolBar(Qt::BottomToolBarArea, tb);
 678                 }
 679
 680                 if (visibility & Toolbars::LEFT) {
 681                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 682 #if (QT_VERSION >= 0x040202)
 683                         if (newline)
 684                                 addToolBarBreak(Qt::LeftToolBarArea);
 685 #endif
 686                         addToolBar(Qt::LeftToolBarArea, tb);
 687                 }
 688
 689                 if (visibility & Toolbars::RIGHT) {
 690                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 691 #if (QT_VERSION >= 0x040202)
 692                         if (newline)
 693                                 addToolBarBreak(Qt::RightToolBarArea);
 694 #endif
 695                         addToolBar(Qt::RightToolBarArea, tb);
 696                 }
 697
 698                 if (visibility & Toolbars::ON)
 699                         tb->setVisible(true);
 700         }
 701 }
 702
 703
 704 TocModels & GuiView::tocModels()
 705 {
 706         return d.toc_models_;
 707 }
 708
 709
 710 void GuiView::setFocus()
 711 {
 712         LYXERR(Debug::DEBUG, "GuiView::setFocus()" << this);
 713         QMainWindow::setFocus();
 714 }
 715
 716
 717 void GuiView::focusInEvent(QFocusEvent * e)
 718 {
 719         LYXERR(Debug::DEBUG, "GuiView::focusInEvent()" << this);
 720         QMainWindow::focusInEvent(e);
 721         // Make sure guiApp points to the correct view.
 722         guiApp->setCurrentView(this);
 723         if (currentMainWorkArea())
 724                 currentMainWorkArea()->setFocus();
 725         else if (currentWorkArea())
 726                 currentWorkArea()->setFocus();
 727         else
 728                 d.bg_widget_->setFocus();
 729 }
 730
 731
 732 QMenu * GuiView::createPopupMenu()
 733 {
 734         return d.toolBarPopup(this);
 735 }
 736
 737
 738 void GuiView::showEvent(QShowEvent * e)
 739 {
 740         LYXERR(Debug::GUI, "Passed Geometry "
 741                 << size().height() << "x" << size().width()
 742                 << "+" << pos().x() << "+" << pos().y());
 743
 744         if (d.splitter_->count() == 0)
 745                 // No work area, switch to the background widget.
 746                 d.setBackground();
 747
 748         QMainWindow::showEvent(e);
 749 }
 750
 751
 752 bool GuiView::closeScheduled()
 753 {
 754         closing_ = true;
 755         return close();
 756 }
 757
 758
 759 /** Destroy only all tabbed WorkAreas. Destruction of other WorkAreas
 760  ** is responsibility of the container (e.g., dialog)
 761  **/
 762 void GuiView::closeEvent(QCloseEvent * close_event)
 763 {
 764         LYXERR(Debug::DEBUG, "GuiView::closeEvent()");
 765
 766         if (!GuiViewPrivate::busyBuffers.isEmpty()) {
 767                 Alert::warning(_("Exit LyX"), _("LyX could not be closed because documents are processed by LyX."));
 768                 close_event->setAccepted(false);
 769                 return;
 770         }
 771
 772         // If the user pressed the x (so we didn't call closeView
 773         // programmatically), we want to clear all existing entries.
 774         if (!closing_)
 775                 theSession().lastOpened().clear();
 776         closing_ = true;
 777
 778         writeSession();
 779
 780         // it can happen that this event arrives without selecting the view,
 781         // e.g. when clicking the close button on a background window.
 782         setFocus();
 783         if (!closeWorkAreaAll()) {
 784                 closing_ = false;
 785                 close_event->ignore();
 786                 return;
 787         }
 788
 789         // Make sure that nothing will use this to be closed View.
 790         guiApp->unregisterView(this);
 791
 792         if (isFullScreen()) {
 793                 // Switch off fullscreen before closing.
 794                 toggleFullScreen();
 795                 updateDialogs();
 796         }
 797
 798         // Make sure the timer time out will not trigger a statusbar update.
 799         d.statusbar_timer_.stop();
 800
 801         // Saving fullscreen requires additional tweaks in the toolbar code.
 802         // It wouldn't also work under linux natively.
 803         if (lyxrc.allow_geometry_session) {
 804                 // Save this window geometry and layout.
 805                 saveLayout();
 806                 // Then the toolbar private states.
 807                 ToolbarMap::iterator end = d.toolbars_.end();
 808                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
 809                         it->second->saveSession();
 810                 // Now take care of all other dialogs:
 811                 map<string, DialogPtr>::const_iterator it = d.dialogs_.begin();
 812                 for (; it!= d.dialogs_.end(); ++it)
 813                         it->second->saveSession();
 814         }
 815
 816         close_event->accept();
 817 }
 818
 819
 820 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 821 {
 822         if (event->mimeData()->hasUrls())
 823                 event->accept();
 824         /// \todo Ask lyx-devel is this is enough:
 825         /// if (event->mimeData()->hasFormat("text/plain"))
 826         ///     event->acceptProposedAction();
 827 }
 828
 829
 830 void GuiView::dropEvent(QDropEvent * event)
 831 {
 832         QList<QUrl> files = event->mimeData()->urls();
 833         if (files.isEmpty())
 834                 return;
 835
 836         LYXERR(Debug::GUI, "GuiView::dropEvent: got URLs!");
 837         for (int i = 0; i != files.size(); ++i) {
 838                 string const file = os::internal_path(fromqstr(
 839                         files.at(i).toLocalFile()));
 840                 if (file.empty())
 841                         continue;
 842
 843                 string const ext = support::getExtension(file);
 844                 vector<const Format *> found_formats;
 845
 846                 // Find all formats that have the correct extension.
 847                 vector<const Format *> const & import_formats
 848                         = theConverters().importableFormats();
 849                 vector<const Format *>::const_iterator it = import_formats.begin();
 850                 for (; it != import_formats.end(); ++it)
 851                         if ((*it)->extension() == ext)
 852                                 found_formats.push_back(*it);
 853
 854                 FuncRequest cmd;
 855                 if (found_formats.size() >= 1) {
 856                         if (found_formats.size() > 1) {
 857                                 //FIXME: show a dialog to choose the correct importable format
 858                                 LYXERR(Debug::FILES,
 859                                         "Multiple importable formats found, selecting first");
 860                         }
 861                         string const arg = found_formats[0]->name() + " " + file;
 862                         cmd = FuncRequest(LFUN_BUFFER_IMPORT, arg);
 863                 }
 864                 else {
 865                         //FIXME: do we have to explicitly check whether it's a lyx file?
 866                         LYXERR(Debug::FILES,
 867                                 "No formats found, trying to open it as a lyx file");
 868                         cmd = FuncRequest(LFUN_FILE_OPEN, file);
 869                 }
 870                 // add the functions to the queue
 871                 guiApp->addToFuncRequestQueue(cmd);
 872                 event->accept();
 873         }
 874         // now process the collected functions. We perform the events
 875         // asynchronously. This prevents potential problems in case the
 876         // BufferView is closed within an event.
 877         guiApp->processFuncRequestQueueAsync();
 878 }
 879
 880
 881 void GuiView::message(docstring const & str)
 882 {
 883         if (ForkedProcess::iAmAChild())
 884                 return;
 885
 886         // call is moved to GUI-thread by GuiProgress
 887         d.progress_->appendMessage(toqstr(str));
 888 }
 889
 890
 891 void GuiView::clearMessageText()
 892 {
 893         message(docstring());
 894 }
 895
 896
 897 void GuiView::updateStatusBarMessage(QString const & str)
 898 {
 899         statusBar()->showMessage(str);
 900         d.statusbar_timer_.stop();
 901         d.statusbar_timer_.start(3000);
 902 }
 903
 904
 905 void GuiView::smallSizedIcons()
 906 {
 907         setIconSize(QSize(d.smallIconSize, d.smallIconSize));
 908 }
 909
 910
 911 void GuiView::normalSizedIcons()
 912 {
 913         setIconSize(QSize(d.normalIconSize, d.normalIconSize));
 914 }
 915
 916
 917 void GuiView::bigSizedIcons()
 918 {
 919         setIconSize(QSize(d.bigIconSize, d.bigIconSize));
 920 }
 921
 922
 923 void GuiView::clearMessage()
 924 {
 925         // FIXME: This code was introduced in r19643 to fix bug #4123. However,
 926         // the hasFocus function mostly returns false, even if the focus is on
 927         // a workarea in this view.
 928         //if (!hasFocus())
 929         //      return;
 930         showMessage();
 931         d.statusbar_timer_.stop();
 932 }
 933
 934
 935 void GuiView::updateWindowTitle(GuiWorkArea * wa)
 936 {
 937         if (wa != d.current_work_area_
 938                 || wa->bufferView().buffer().isInternal())
 939                 return;
 940         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
 941         setWindowIconText(wa->windowIconText());
 942 }
 943
 944
 945 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
 946 {
 947         disconnectBuffer();
 948         disconnectBufferView();
 949         connectBufferView(wa->bufferView());
 950         connectBuffer(wa->bufferView().buffer());
 951         d.current_work_area_ = wa;
 952         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 953                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
 954         updateWindowTitle(wa);
 955
 956         structureChanged();
 957
 958         // The document settings needs to be reinitialised.
 959         updateDialog("document", "");
 960
 961         // Buffer-dependent dialogs must be updated. This is done here because
 962         // some dialogs require buffer()->text.
 963         updateDialogs();
 964 }
 965
 966
 967 void GuiView::on_lastWorkAreaRemoved()
 968 {
 969         if (closing_)
 970                 // We already are in a close event. Nothing more to do.
 971                 return;
 972
 973         if (d.splitter_->count() > 1)
 974                 // We have a splitter so don't close anything.
 975                 return;
 976
 977         // Reset and updates the dialogs.
 978         d.toc_models_.reset(0);
 979         updateDialog("document", "");
 980         updateDialogs();
 981
 982         resetWindowTitleAndIconText();
 983         updateStatusBar();
 984
 985         if (lyxrc.open_buffers_in_tabs)
 986                 // Nothing more to do, the window should stay open.
 987                 return;
 988
 989         if (guiApp->viewIds().size() > 1) {
 990                 close();
 991                 return;
 992         }
 993
 994 #ifdef Q_WS_MACX
 995         // On Mac we also close the last window because the application stay
 996         // resident in memory. On other platforms we don't close the last
 997         // window because this would quit the application.
 998         close();
 999 #endif
1000 }
1001
1002
1003 void GuiView::updateStatusBar()
1004 {
1005         // let the user see the explicit message
1006         if (d.statusbar_timer_.isActive())
1007                 return;
1008
1009         showMessage();
1010 }
1011
1012
1013 void GuiView::showMessage()
1014 {
1015         QString msg = toqstr(theGuiApp()->viewStatusMessage());
1016         if (msg.isEmpty()) {
1017                 BufferView const * bv = currentBufferView();
1018                 if (bv)
1019                         msg = toqstr(bv->cursor().currentState());
1020                 else
1021                         msg = qt_("Welcome to LyX!");
1022         }
1023         statusBar()->showMessage(msg);
1024 }
1025
1026
1027 bool GuiView::event(QEvent * e)
1028 {
1029         switch (e->type())
1030         {
1031         // Useful debug code:
1032         //case QEvent::ActivationChange:
1033         //case QEvent::WindowDeactivate:
1034         //case QEvent::Paint:
1035         //case QEvent::Enter:
1036         //case QEvent::Leave:
1037         //case QEvent::HoverEnter:
1038         //case QEvent::HoverLeave:
1039         //case QEvent::HoverMove:
1040         //case QEvent::StatusTip:
1041         //case QEvent::DragEnter:
1042         //case QEvent::DragLeave:
1043         //case QEvent::Drop:
1044         //      break;
1045
1046         case QEvent::WindowActivate: {
1047                 GuiView * old_view = guiApp->currentView();
1048                 if (this == old_view) {
1049                         setFocus();
1050                         return QMainWindow::event(e);
1051                 }
1052                 if (old_view && old_view->currentBufferView()) {
1053                         // save current selection to the selection buffer to allow
1054                         // middle-button paste in this window.
1055                         cap::saveSelection(old_view->currentBufferView()->cursor());
1056                 }
1057                 guiApp->setCurrentView(this);
1058                 if (d.current_work_area_) {
1059                         BufferView & bv = d.current_work_area_->bufferView();
1060                         connectBufferView(bv);
1061                         connectBuffer(bv.buffer());
1062                         // The document structure, name and dialogs might have
1063                         // changed in another view.
1064                         structureChanged();
1065                         // The document settings needs to be reinitialised.
1066                         updateDialog("document", "");
1067                         updateDialogs();
1068                 } else {
1069                         resetWindowTitleAndIconText();
1070                 }
1071                 setFocus();
1072                 return QMainWindow::event(e);
1073         }
1074
1075         case QEvent::ShortcutOverride: {
1076
1077 // See bug 4888
1078 #if (!defined Q_WS_X11) || (QT_VERSION >= 0x040500)
1079                 if (isFullScreen() && menuBar()->isHidden()) {
1080                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
1081                         // FIXME: we should also try to detect special LyX shortcut such as
1082                         // Alt-P and Alt-M. Right now there is a hack in
1083                         // GuiWorkArea::processKeySym() that hides again the menubar for
1084                         // those cases.
1085                         if (ke->modifiers() & Qt::AltModifier && ke->key() != Qt::Key_Alt) {
1086                                 menuBar()->show();
1087                                 return QMainWindow::event(e);
1088                         }
1089                 }
1090 #endif
1091                 return QMainWindow::event(e);
1092         }
1093
1094         default:
1095                 return QMainWindow::event(e);
1096         }
1097 }
1098
1099 void GuiView::resetWindowTitleAndIconText()
1100 {
1101         setWindowTitle(qt_("LyX"));
1102         setWindowIconText(qt_("LyX"));
1103 }
1104
1105 bool GuiView::focusNextPrevChild(bool /*next*/)
1106 {
1107         setFocus();
1108         return true;
1109 }
1110
1111
1112 bool GuiView::busy() const
1113 {
1114         return busy_;
1115 }
1116
1117
1118 void GuiView::setBusy(bool busy)
1119 {
1120         busy_ = busy;
1121         if (d.current_work_area_) {
1122                 d.current_work_area_->setUpdatesEnabled(!busy);
1123                 if (busy)
1124                         d.current_work_area_->stopBlinkingCursor();
1125                 else
1126                         d.current_work_area_->startBlinkingCursor();
1127         }
1128
1129         if (busy)
1130                 QApplication::setOverrideCursor(Qt::WaitCursor);
1131         else
1132                 QApplication::restoreOverrideCursor();
1133 }
1134
1135
1136 GuiWorkArea * GuiView::workArea(Buffer & buffer)
1137 {
1138         if (currentWorkArea()
1139                 && &currentWorkArea()->bufferView().buffer() == &buffer)
1140                 return (GuiWorkArea *) currentWorkArea();
1141         if (TabWorkArea * twa = d.currentTabWorkArea())
1142                 return twa->workArea(buffer);
1143         return 0;
1144 }
1145
1146
1147 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
1148 {
1149         // Automatically create a TabWorkArea if there are none yet.
1150         TabWorkArea * tab_widget = d.splitter_->count()
1151                 ? d.currentTabWorkArea() : addTabWorkArea();
1152         return tab_widget->addWorkArea(buffer, *this);
1153 }
1154
1155
1156 TabWorkArea * GuiView::addTabWorkArea()
1157 {
1158         TabWorkArea * twa = new TabWorkArea;
1159         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
1160                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
1161         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
1162                          this, SLOT(on_lastWorkAreaRemoved()));
1163
1164         d.splitter_->addWidget(twa);
1165         d.stack_widget_->setCurrentWidget(d.splitter_);
1166         return twa;
1167 }
1168
1169
1170 GuiWorkArea const * GuiView::currentWorkArea() const
1171 {
1172         return d.current_work_area_;
1173 }
1174
1175
1176 GuiWorkArea * GuiView::currentWorkArea()
1177 {
1178         return d.current_work_area_;
1179 }
1180
1181
1182 GuiWorkArea const * GuiView::currentMainWorkArea() const
1183 {
1184         if (!d.currentTabWorkArea())
1185                 return 0;
1186         return d.currentTabWorkArea()->currentWorkArea();
1187 }
1188
1189
1190 GuiWorkArea * GuiView::currentMainWorkArea()
1191 {
1192         if (!d.currentTabWorkArea())
1193                 return 0;
1194         return d.currentTabWorkArea()->currentWorkArea();
1195 }
1196
1197
1198 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
1199 {
1200         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
1201         if (!wa) {
1202                 d.current_work_area_ = 0;
1203                 d.setBackground();
1204                 return;
1205         }
1206
1207         // FIXME: I've no clue why this is here and why it accesses
1208         //  theGuiApp()->currentView, which might be 0 (bug 6464).
1209         //  See also 27525 (vfr).
1210         if (theGuiApp()->currentView() == this
1211                   && theGuiApp()->currentView()->currentWorkArea() == wa)
1212                 return;
1213
1214         if (currentBufferView())
1215                 cap::saveSelection(currentBufferView()->cursor());
1216
1217         theGuiApp()->setCurrentView(this);
1218         d.current_work_area_ = wa;
1219
1220         // We need to reset this now, because it will need to be
1221         // right if the tabWorkArea gets reset in the for loop. We
1222         // will change it back if we aren't in that case.
1223         GuiWorkArea * const old_cmwa = d.current_main_work_area_;
1224         d.current_main_work_area_ = wa;
1225
1226         for (int i = 0; i != d.splitter_->count(); ++i) {
1227                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
1228                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea()
1229                                 << ", Current main wa: " << currentMainWorkArea());
1230                         return;
1231                 }
1232         }
1233
1234         d.current_main_work_area_ = old_cmwa;
1235
1236         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
1237         on_currentWorkAreaChanged(wa);
1238         BufferView & bv = wa->bufferView();
1239         bv.cursor().fixIfBroken();
1240         bv.updateMetrics();
1241         wa->setUpdatesEnabled(true);
1242         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1243 }
1244
1245
1246 void GuiView::removeWorkArea(GuiWorkArea * wa)
1247 {
1248         LASSERT(wa, return);
1249         if (wa == d.current_work_area_) {
1250                 disconnectBuffer();
1251                 disconnectBufferView();
1252                 d.current_work_area_ = 0;
1253                 d.current_main_work_area_ = 0;
1254         }
1255
1256         bool found_twa = false;
1257         for (int i = 0; i != d.splitter_->count(); ++i) {
1258                 TabWorkArea * twa = d.tabWorkArea(i);
1259                 if (twa->removeWorkArea(wa)) {
1260                         // Found in this tab group, and deleted the GuiWorkArea.
1261                         found_twa = true;
1262                         if (twa->count() != 0) {
1263                                 if (d.current_work_area_ == 0)
1264                                         // This means that we are closing the current GuiWorkArea, so
1265                                         // switch to the next GuiWorkArea in the found TabWorkArea.
1266                                         setCurrentWorkArea(twa->currentWorkArea());
1267                         } else {
1268                                 // No more WorkAreas in this tab group, so delete it.
1269                                 delete twa;
1270                         }
1271                         break;
1272                 }
1273         }
1274
1275         // It is not a tabbed work area (i.e., the search work area), so it
1276         // should be deleted by other means.
1277         LASSERT(found_twa, /* */);
1278
1279         if (d.current_work_area_ == 0) {
1280                 if (d.splitter_->count() != 0) {
1281                         TabWorkArea * twa = d.currentTabWorkArea();
1282                         setCurrentWorkArea(twa->currentWorkArea());
1283                 } else {
1284                         // No more work areas, switch to the background widget.
1285                         setCurrentWorkArea(0);
1286                 }
1287         }
1288 }
1289
1290
1291 LayoutBox * GuiView::getLayoutDialog() const
1292 {
1293         return d.layout_;
1294 }
1295
1296
1297 void GuiView::updateLayoutList()
1298 {
1299         if (d.layout_)
1300                 d.layout_->updateContents(false);
1301 }
1302
1303
1304 void GuiView::updateToolbars()
1305 {
1306         ToolbarMap::iterator end = d.toolbars_.end();
1307         if (d.current_work_area_) {
1308                 bool const math =
1309                         d.current_work_area_->bufferView().cursor().inMathed()
1310                         && !d.current_work_area_->bufferView().cursor().inRegexped();
1311                 bool const table =
1312                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1313                 bool const review =
1314                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1315                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onOff(true);
1316                 bool const mathmacrotemplate =
1317                         lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled();
1318
1319                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1320                         it->second->update(math, table, review, mathmacrotemplate);
1321         } else
1322                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1323                         it->second->update(false, false, false, false);
1324 }
1325
1326
1327 void GuiView::setBuffer(Buffer * newBuffer)
1328 {
1329         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << endl);
1330         LASSERT(newBuffer, return);
1331         setBusy(true);
1332
1333         GuiWorkArea * wa = workArea(*newBuffer);
1334         if (wa == 0) {
1335                 newBuffer->masterBuffer()->updateBuffer();
1336                 wa = addWorkArea(*newBuffer);
1337                 // scroll to the position when the BufferView was last closed
1338                 if (lyxrc.use_lastfilepos) {
1339                         LastFilePosSection::FilePos filepos =
1340                                 theSession().lastFilePos().load(newBuffer->fileName());
1341                         wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1342                 }
1343         } else {
1344                 //Disconnect the old buffer...there's no new one.
1345                 disconnectBuffer();
1346         }
1347         connectBuffer(*newBuffer);
1348         connectBufferView(wa->bufferView());
1349         setCurrentWorkArea(wa);
1350
1351         setBusy(false);
1352 }
1353
1354
1355 void GuiView::connectBuffer(Buffer & buf)
1356 {
1357         buf.setGuiDelegate(this);
1358 }
1359
1360
1361 void GuiView::disconnectBuffer()
1362 {
1363         if (d.current_work_area_)
1364                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1365 }
1366
1367
1368 void GuiView::connectBufferView(BufferView & bv)
1369 {
1370         bv.setGuiDelegate(this);
1371 }
1372
1373
1374 void GuiView::disconnectBufferView()
1375 {
1376         if (d.current_work_area_)
1377                 d.current_work_area_->bufferView().setGuiDelegate(0);
1378 }
1379
1380
1381 void GuiView::errors(string const & error_type, bool from_master)
1382 {
1383         ErrorList & el = from_master ?
1384                 currentBufferView()->buffer().masterBuffer()->errorList(error_type)
1385                 : currentBufferView()->buffer().errorList(error_type);
1386         string data = error_type;
1387         if (from_master)
1388                 data = "from_master|" + error_type;
1389         if (!el.empty())
1390                 showDialog("errorlist", data);
1391 }
1392
1393
1394 void GuiView::updateTocItem(string const & type, DocIterator const & dit)
1395 {
1396         d.toc_models_.updateItem(toqstr(type), dit);
1397 }
1398
1399
1400 void GuiView::structureChanged()
1401 {
1402         d.toc_models_.reset(documentBufferView());
1403         LYXERR0(documentBufferView());
1404         // Navigator needs more than a simple update in this case. It needs to be
1405         // rebuilt.
1406         updateDialog("toc", "");
1407 }
1408
1409
1410 void GuiView::updateDialog(string const & name, string const & data)
1411 {
1412         if (!isDialogVisible(name))
1413                 return;
1414
1415         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1416         if (it == d.dialogs_.end())
1417                 return;
1418
1419         Dialog * const dialog = it->second.get();
1420         if (dialog->isVisibleView())
1421                 dialog->initialiseParams(data);
1422 }
1423
1424
1425 BufferView * GuiView::documentBufferView()
1426 {
1427         return currentMainWorkArea()
1428                 ? &currentMainWorkArea()->bufferView()
1429                 : 0;
1430 }
1431
1432
1433 BufferView const * GuiView::documentBufferView() const
1434 {
1435         return currentMainWorkArea()
1436                 ? &currentMainWorkArea()->bufferView()
1437                 : 0;
1438 }
1439
1440
1441 BufferView * GuiView::currentBufferView()
1442 {
1443         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1444 }
1445
1446
1447 BufferView const * GuiView::currentBufferView() const
1448 {
1449         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1450 }
1451
1452
1453 #if (QT_VERSION >= 0x040400)
1454 docstring GuiView::GuiViewPrivate::saveAndDestroy(Buffer const * orig, Buffer * buffer, FileName const & fname)
1455 {
1456         bool failed = true;
1457         FileName const tmp_ret = FileName::tempName("lyxauto");
1458         if (!tmp_ret.empty()) {
1459                 if (buffer->writeFile(tmp_ret))
1460                         failed = !tmp_ret.moveTo(fname);
1461         }
1462         if (failed) {
1463                 // failed to write/rename tmp_ret so try writing direct
1464                 failed = buffer->writeFile(fname);
1465         }
1466         delete buffer;
1467         busyBuffers.remove(orig);
1468         return failed
1469                 ? _("Automatic save failed!")
1470                 : _("Automatic save done.");
1471 }
1472 #endif
1473
1474
1475 void GuiView::autoSave()
1476 {
1477         LYXERR(Debug::INFO, "Running autoSave()");
1478
1479         Buffer * buffer = documentBufferView()
1480                 ? &documentBufferView()->buffer() : 0;
1481         if (!buffer)
1482                 return;
1483
1484 #if (QT_VERSION >= 0x040400)
1485         GuiViewPrivate::busyBuffers.insert(buffer);
1486         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::saveAndDestroy, buffer, buffer->clone(),
1487                 buffer->getAutosaveFileName());
1488         d.autosave_watcher_.setFuture(f);
1489 #else
1490         buffer->autoSave();
1491 #endif
1492 }
1493
1494
1495 void GuiView::resetAutosaveTimers()
1496 {
1497         if (lyxrc.autosave)
1498                 d.autosave_timeout_.restart();
1499 }
1500
1501
1502 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1503 {
1504         bool enable = true;
1505         Buffer * buf = currentBufferView()
1506                 ? &currentBufferView()->buffer() : 0;
1507         Buffer * doc_buffer = documentBufferView()
1508                 ? &(documentBufferView()->buffer()) : 0;
1509
1510         // Check whether we need a buffer
1511         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
1512                 // no, exit directly
1513                 flag.message(from_utf8(N_("Command not allowed with"
1514                                         "out any document open")));
1515                 flag.setEnabled(false);
1516                 return true;
1517         }
1518
1519         if (cmd.origin() == FuncRequest::TOC) {
1520                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1521                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
1522                         flag.setEnabled(false);
1523                 return true;
1524         }
1525
1526         switch(cmd.action()) {
1527         case LFUN_BUFFER_IMPORT:
1528                 break;
1529
1530         case LFUN_MASTER_BUFFER_UPDATE:
1531         case LFUN_MASTER_BUFFER_VIEW:
1532                 enable = doc_buffer && doc_buffer->parent() != 0
1533                         && !d.processing_thread_watcher_.isRunning();
1534                 break;
1535
1536         case LFUN_BUFFER_UPDATE:
1537         case LFUN_BUFFER_VIEW: {
1538                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
1539                         enable = false;
1540                         break;
1541                 }
1542                 string format = to_utf8(cmd.argument());
1543                 if (cmd.argument().empty())
1544                         format = doc_buffer->getDefaultOutputFormat();
1545                 enable = doc_buffer->isExportableFormat(format);
1546                 break;
1547         }
1548
1549         case LFUN_BUFFER_RELOAD:
1550                 enable = doc_buffer && !doc_buffer->isUnnamed()
1551                         && doc_buffer->fileName().exists()
1552                         && (!doc_buffer->isClean()
1553                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1554                 break;
1555
1556         case LFUN_BUFFER_CHILD_OPEN:
1557                 enable = doc_buffer;
1558                 break;
1559
1560         case LFUN_BUFFER_WRITE:
1561                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1562                 break;
1563
1564         //FIXME: This LFUN should be moved to GuiApplication.
1565         case LFUN_BUFFER_WRITE_ALL: {
1566                 // We enable the command only if there are some modified buffers
1567                 Buffer * first = theBufferList().first();
1568                 enable = false;
1569                 if (!first)
1570                         break;
1571                 Buffer * b = first;
1572                 // We cannot use a for loop as the buffer list is a cycle.
1573                 do {
1574                         if (!b->isClean()) {
1575                                 enable = true;
1576                                 break;
1577                         }
1578                         b = theBufferList().next(b);
1579                 } while (b != first);
1580                 break;
1581         }
1582
1583         case LFUN_BUFFER_WRITE_AS:
1584                 enable = doc_buffer;
1585                 break;
1586
1587         case LFUN_BUFFER_CLOSE:
1588                 enable = doc_buffer;
1589                 break;
1590
1591         case LFUN_BUFFER_CLOSE_ALL:
1592                 enable = theBufferList().last() != theBufferList().first();
1593                 break;
1594
1595         case LFUN_SPLIT_VIEW:
1596                 if (cmd.getArg(0) == "vertical")
1597                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1598                                          d.splitter_->orientation() == Qt::Vertical);
1599                 else
1600                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1601                                          d.splitter_->orientation() == Qt::Horizontal);
1602                 break;
1603
1604         case LFUN_CLOSE_TAB_GROUP:
1605                 enable = d.currentTabWorkArea();
1606                 break;
1607
1608         case LFUN_TOOLBAR_TOGGLE: {
1609                 string const name = cmd.getArg(0);
1610                 if (GuiToolbar * t = toolbar(name))
1611                         flag.setOnOff(t->isVisible());
1612                 else {
1613                         enable = false;
1614                         docstring const msg =
1615                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
1616                         flag.message(msg);
1617                 }
1618                 break;
1619         }
1620
1621         case LFUN_DROP_LAYOUTS_CHOICE:
1622                 enable = buf;
1623                 break;
1624
1625         case LFUN_UI_TOGGLE:
1626                 flag.setOnOff(isFullScreen());
1627                 break;
1628
1629         case LFUN_DIALOG_DISCONNECT_INSET:
1630                 break;
1631
1632         case LFUN_DIALOG_HIDE:
1633                 // FIXME: should we check if the dialog is shown?
1634                 break;
1635
1636         case LFUN_DIALOG_TOGGLE:
1637                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1638                 // fall through to set "enable"
1639         case LFUN_DIALOG_SHOW: {
1640                 string const name = cmd.getArg(0);
1641                 if (!doc_buffer)
1642                         enable = name == "aboutlyx"
1643                                 || name == "file" //FIXME: should be removed.
1644                                 || name == "prefs"
1645                                 || name == "texinfo"
1646                                 || name == "progress"
1647                                 || name == "compare";
1648                 else if (name == "print")
1649                         enable = doc_buffer->isExportable("dvi")
1650                                 && lyxrc.print_command != "none";
1651                 else if (name == "character" || name == "symbols") {
1652                         if (!buf || buf->isReadonly())
1653                                 enable = false;
1654                         else {
1655                                 // FIXME we should consider passthru
1656                                 // paragraphs too.
1657                                 Inset const & in = currentBufferView()->cursor().inset();
1658                                 enable = !in.getLayout().isPassThru();
1659                         }
1660                 }
1661                 else if (name == "latexlog")
1662                         enable = FileName(doc_buffer->logName()).isReadableFile();
1663                 else if (name == "spellchecker")
1664                         enable = theSpellChecker() && !doc_buffer->isReadonly();
1665                 else if (name == "vclog")
1666                         enable = doc_buffer->lyxvc().inUse();
1667                 break;
1668         }
1669
1670         case LFUN_DIALOG_UPDATE: {
1671                 string const name = cmd.getArg(0);
1672                 if (!buf)
1673                         enable = name == "prefs";
1674                 break;
1675         }
1676
1677         case LFUN_COMMAND_EXECUTE:
1678         case LFUN_MESSAGE:
1679         case LFUN_MENU_OPEN:
1680                 // Nothing to check.
1681                 break;
1682
1683         case LFUN_COMPLETION_INLINE:
1684                 if (!d.current_work_area_
1685                         || !d.current_work_area_->completer().inlinePossible(
1686                         currentBufferView()->cursor()))
1687                         enable = false;
1688                 break;
1689
1690         case LFUN_COMPLETION_POPUP:
1691                 if (!d.current_work_area_
1692                         || !d.current_work_area_->completer().popupPossible(
1693                         currentBufferView()->cursor()))
1694                         enable = false;
1695                 break;
1696
1697         case LFUN_COMPLETION_COMPLETE:
1698                 if (!d.current_work_area_
1699                         || !d.current_work_area_->completer().inlinePossible(
1700                         currentBufferView()->cursor()))
1701                         enable = false;
1702                 break;
1703
1704         case LFUN_COMPLETION_ACCEPT:
1705                 if (!d.current_work_area_
1706                         || (!d.current_work_area_->completer().popupVisible()
1707                         && !d.current_work_area_->completer().inlineVisible()
1708                         && !d.current_work_area_->completer().completionAvailable()))
1709                         enable = false;
1710                 break;
1711
1712         case LFUN_COMPLETION_CANCEL:
1713                 if (!d.current_work_area_
1714                         || (!d.current_work_area_->completer().popupVisible()
1715                         && !d.current_work_area_->completer().inlineVisible()))
1716                         enable = false;
1717                 break;
1718
1719         case LFUN_BUFFER_ZOOM_OUT:
1720                 enable = doc_buffer && lyxrc.zoom > 10;
1721                 break;
1722
1723         case LFUN_BUFFER_ZOOM_IN:
1724                 enable = doc_buffer;
1725                 break;
1726
1727         case LFUN_BUFFER_NEXT:
1728         case LFUN_BUFFER_PREVIOUS:
1729                 // FIXME: should we check is there is an previous or next buffer?
1730                 break;
1731         case LFUN_BUFFER_SWITCH:
1732                 // toggle on the current buffer, but do not toggle off
1733                 // the other ones (is that a good idea?)
1734                 if (doc_buffer
1735                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
1736                         flag.setOnOff(true);
1737                 break;
1738
1739         case LFUN_VC_REGISTER:
1740                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
1741                 break;
1742         case LFUN_VC_CHECK_IN:
1743                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
1744                 break;
1745         case LFUN_VC_CHECK_OUT:
1746                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
1747                 break;
1748         case LFUN_VC_LOCKING_TOGGLE:
1749                 enable = doc_buffer && !doc_buffer->isReadonly()
1750                         && doc_buffer->lyxvc().lockingToggleEnabled();
1751                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
1752                 break;
1753         case LFUN_VC_REVERT:
1754                 enable = doc_buffer && doc_buffer->lyxvc().inUse() && !doc_buffer->isReadonly();
1755                 break;
1756         case LFUN_VC_UNDO_LAST:
1757                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
1758                 break;
1759         case LFUN_VC_REPO_UPDATE:
1760                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
1761                 break;
1762         case LFUN_VC_COMMAND: {
1763                 if (cmd.argument().empty())
1764                         enable = false;
1765                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
1766                         enable = false;
1767                 break;
1768         }
1769         case LFUN_VC_COMPARE:
1770                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
1771                 break;
1772
1773         case LFUN_SERVER_GOTO_FILE_ROW:
1774                 break;
1775         case LFUN_FORWARD_SEARCH:
1776                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty());
1777                 break;
1778
1779         default:
1780                 return false;
1781         }
1782
1783         if (!enable)
1784                 flag.setEnabled(false);
1785
1786         return true;
1787 }
1788
1789
1790 static FileName selectTemplateFile()
1791 {
1792         FileDialog dlg(qt_("Select template file"));
1793         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1794         dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1795
1796         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
1797                                  QStringList(qt_("LyX Documents (*.lyx)")));
1798
1799         if (result.first == FileDialog::Later)
1800                 return FileName();
1801         if (result.second.isEmpty())
1802                 return FileName();
1803         return FileName(fromqstr(result.second));
1804 }
1805
1806
1807 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
1808 {
1809         setBusy(true);
1810
1811         Buffer * newBuffer = 0;
1812         try {
1813                 newBuffer = checkAndLoadLyXFile(filename);
1814         } catch (ExceptionMessage const & e) {
1815                 setBusy(false);
1816                 throw(e);
1817         }
1818
1819         if (!newBuffer) {
1820                 message(_("Document not loaded."));
1821                 setBusy(false);
1822                 return 0;
1823         }
1824
1825         newBuffer->errors("Parse");
1826         setBuffer(newBuffer);
1827
1828         if (tolastfiles)
1829                 theSession().lastFiles().add(filename);
1830
1831         setBusy(false);
1832         return newBuffer;
1833 }
1834
1835
1836 void GuiView::openDocument(string const & fname)
1837 {
1838         string initpath = lyxrc.document_path;
1839
1840         if (documentBufferView()) {
1841                 string const trypath = documentBufferView()->buffer().filePath();
1842                 // If directory is writeable, use this as default.
1843                 if (FileName(trypath).isDirWritable())
1844                         initpath = trypath;
1845         }
1846
1847         string filename;
1848
1849         if (fname.empty()) {
1850                 FileDialog dlg(qt_("Select document to open"), LFUN_FILE_OPEN);
1851                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1852                 dlg.setButton2(qt_("Examples|#E#e"),
1853                                 toqstr(addPath(package().system_support().absFileName(), "examples")));
1854
1855                 QStringList filter(qt_("LyX Documents (*.lyx)"));
1856                 filter << qt_("LyX-1.3.x Documents (*.lyx13)")
1857                         << qt_("LyX-1.4.x Documents (*.lyx14)")
1858                         << qt_("LyX-1.5.x Documents (*.lyx15)")
1859                         << qt_("LyX-1.6.x Documents (*.lyx16)");
1860                 FileDialog::Result result =
1861                         dlg.open(toqstr(initpath), filter);
1862
1863                 if (result.first == FileDialog::Later)
1864                         return;
1865
1866                 filename = fromqstr(result.second);
1867
1868                 // check selected filename
1869                 if (filename.empty()) {
1870                         message(_("Canceled."));
1871                         return;
1872                 }
1873         } else
1874                 filename = fname;
1875
1876         // get absolute path of file and add ".lyx" to the filename if
1877         // necessary.
1878         FileName const fullname =
1879                         fileSearch(string(), filename, "lyx", support::may_not_exist);
1880         if (!fullname.empty())
1881                 filename = fullname.absFileName();
1882
1883         if (!fullname.onlyPath().isDirectory()) {
1884                 Alert::warning(_("Invalid filename"),
1885                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
1886                                 from_utf8(fullname.absFileName())));
1887                 return;
1888         }
1889
1890         // if the file doesn't exist and isn't already open (bug 6645),
1891         // let the user create one
1892         if (!fullname.exists() && !theBufferList().exists(fullname)) {
1893                 // the user specifically chose this name. Believe him.
1894                 Buffer * const b = newFile(filename, string(), true);
1895                 if (b)
1896                         setBuffer(b);
1897                 return;
1898         }
1899
1900         docstring const disp_fn = makeDisplayPath(filename);
1901         message(bformat(_("Opening document %1$s..."), disp_fn));
1902
1903         docstring str2;
1904         Buffer * buf = loadDocument(fullname);
1905         if (buf) {
1906                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1907                 if (buf->lyxvc().inUse())
1908                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
1909                                 " " + _("Version control detected.");
1910         } else {
1911                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1912         }
1913         message(str2);
1914 }
1915
1916 // FIXME: clean that
1917 static bool import(GuiView * lv, FileName const & filename,
1918         string const & format, ErrorList & errorList)
1919 {
1920         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
1921
1922         string loader_format;
1923         vector<string> loaders = theConverters().loaders();
1924         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
1925                 for (vector<string>::const_iterator it = loaders.begin();
1926                          it != loaders.end(); ++it) {
1927                         if (!theConverters().isReachable(format, *it))
1928                                 continue;
1929
1930                         string const tofile =
1931                                 support::changeExtension(filename.absFileName(),
1932                                 formats.extension(*it));
1933                         if (!theConverters().convert(0, filename, FileName(tofile),
1934                                 filename, format, *it, errorList))
1935                                 return false;
1936                         loader_format = *it;
1937                         break;
1938                 }
1939                 if (loader_format.empty()) {
1940                         frontend::Alert::error(_("Couldn't import file"),
1941                                          bformat(_("No information for importing the format %1$s."),
1942                                          formats.prettyName(format)));
1943                         return false;
1944                 }
1945         } else
1946                 loader_format = format;
1947
1948         if (loader_format == "lyx") {
1949                 Buffer * buf = lv->loadDocument(lyxfile);
1950                 if (!buf)
1951                         return false;
1952         } else {
1953                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
1954                 if (!b)
1955                         return false;
1956                 lv->setBuffer(b);
1957                 bool as_paragraphs = loader_format == "textparagraph";
1958                 string filename2 = (loader_format == format) ? filename.absFileName()
1959                         : support::changeExtension(filename.absFileName(),
1960                                           formats.extension(loader_format));
1961                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
1962                         as_paragraphs);
1963                 guiApp->setCurrentView(lv);
1964                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1965         }
1966
1967         return true;
1968 }
1969
1970
1971 void GuiView::importDocument(string const & argument)
1972 {
1973         string format;
1974         string filename = split(argument, format, ' ');
1975
1976         LYXERR(Debug::INFO, format << " file: " << filename);
1977
1978         // need user interaction
1979         if (filename.empty()) {
1980                 string initpath = lyxrc.document_path;
1981                 if (documentBufferView()) {
1982                         string const trypath = documentBufferView()->buffer().filePath();
1983                         // If directory is writeable, use this as default.
1984                         if (FileName(trypath).isDirWritable())
1985                                 initpath = trypath;
1986                 }
1987
1988                 docstring const text = bformat(_("Select %1$s file to import"),
1989                         formats.prettyName(format));
1990
1991                 FileDialog dlg(toqstr(text), LFUN_BUFFER_IMPORT);
1992                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1993                 dlg.setButton2(qt_("Examples|#E#e"),
1994                         toqstr(addPath(package().system_support().absFileName(), "examples")));
1995
1996                 docstring filter = formats.prettyName(format);
1997                 filter += " (*.";
1998                 // FIXME UNICODE
1999                 filter += from_utf8(formats.extension(format));
2000                 filter += ')';
2001
2002                 FileDialog::Result result =
2003                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2004
2005                 if (result.first == FileDialog::Later)
2006                         return;
2007
2008                 filename = fromqstr(result.second);
2009
2010                 // check selected filename
2011                 if (filename.empty())
2012                         message(_("Canceled."));
2013         }
2014
2015         if (filename.empty())
2016                 return;
2017
2018         // get absolute path of file
2019         FileName const fullname(support::makeAbsPath(filename));
2020
2021         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2022
2023         // Check if the document already is open
2024         Buffer * buf = theBufferList().getBuffer(lyxfile);
2025         if (buf) {
2026                 setBuffer(buf);
2027                 if (!closeBuffer()) {
2028                         message(_("Canceled."));
2029                         return;
2030                 }
2031         }
2032
2033         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
2034
2035         // if the file exists already, and we didn't do
2036         // -i lyx thefile.lyx, warn
2037         if (lyxfile.exists() && fullname != lyxfile) {
2038
2039                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2040                         "Do you want to overwrite that document?"), displaypath);
2041                 int const ret = Alert::prompt(_("Overwrite document?"),
2042                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
2043
2044                 if (ret == 1) {
2045                         message(_("Canceled."));
2046                         return;
2047                 }
2048         }
2049
2050         message(bformat(_("Importing %1$s..."), displaypath));
2051         ErrorList errorList;
2052         if (import(this, fullname, format, errorList))
2053                 message(_("imported."));
2054         else
2055                 message(_("file not imported!"));
2056
2057         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2058 }
2059
2060
2061 void GuiView::newDocument(string const & filename, bool from_template)
2062 {
2063         FileName initpath(lyxrc.document_path);
2064         if (documentBufferView()) {
2065                 FileName const trypath(documentBufferView()->buffer().filePath());
2066                 // If directory is writeable, use this as default.
2067                 if (trypath.isDirWritable())
2068                         initpath = trypath;
2069         }
2070
2071         string templatefile;
2072         if (from_template) {
2073                 templatefile = selectTemplateFile().absFileName();
2074                 if (templatefile.empty())
2075                         return;
2076         }
2077
2078         Buffer * b;
2079         if (filename.empty())
2080                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
2081         else
2082                 b = newFile(filename, templatefile, true);
2083
2084         if (b)
2085                 setBuffer(b);
2086
2087         // If no new document could be created, it is unsure
2088         // whether there is a valid BufferView.
2089         if (currentBufferView())
2090                 // Ensure the cursor is correctly positioned on screen.
2091                 currentBufferView()->showCursor();
2092 }
2093
2094
2095 void GuiView::insertLyXFile(docstring const & fname)
2096 {
2097         BufferView * bv = documentBufferView();
2098         if (!bv)
2099                 return;
2100
2101         // FIXME UNICODE
2102         FileName filename(to_utf8(fname));
2103         if (filename.empty()) {
2104                 // Launch a file browser
2105                 // FIXME UNICODE
2106                 string initpath = lyxrc.document_path;
2107                 string const trypath = bv->buffer().filePath();
2108                 // If directory is writeable, use this as default.
2109                 if (FileName(trypath).isDirWritable())
2110                         initpath = trypath;
2111
2112                 // FIXME UNICODE
2113                 FileDialog dlg(qt_("Select LyX document to insert"), LFUN_FILE_INSERT);
2114                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2115                 dlg.setButton2(qt_("Examples|#E#e"),
2116                         toqstr(addPath(package().system_support().absFileName(),
2117                         "examples")));
2118
2119                 FileDialog::Result result = dlg.open(toqstr(initpath),
2120                                          QStringList(qt_("LyX Documents (*.lyx)")));
2121
2122                 if (result.first == FileDialog::Later)
2123                         return;
2124
2125                 // FIXME UNICODE
2126                 filename.set(fromqstr(result.second));
2127
2128                 // check selected filename
2129                 if (filename.empty()) {
2130                         // emit message signal.
2131                         message(_("Canceled."));
2132                         return;
2133                 }
2134         }
2135
2136         bv->insertLyXFile(filename);
2137         bv->buffer().errors("Parse");
2138 }
2139
2140
2141 void GuiView::insertPlaintextFile(docstring const & fname,
2142         bool asParagraph)
2143 {
2144         BufferView * bv = documentBufferView();
2145         if (!bv)
2146                 return;
2147
2148         if (!fname.empty() && !FileName::isAbsolute(to_utf8(fname))) {
2149                 message(_("Absolute filename expected."));
2150                 return;
2151         }
2152
2153         // FIXME UNICODE
2154         FileName filename(to_utf8(fname));
2155
2156         if (!filename.empty()) {
2157                 bv->insertPlaintextFile(filename, asParagraph);
2158                 return;
2159         }
2160
2161         FileDialog dlg(qt_("Select file to insert"), (asParagraph ?
2162                 LFUN_FILE_INSERT_PLAINTEXT_PARA : LFUN_FILE_INSERT_PLAINTEXT));
2163
2164         FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
2165                 QStringList(qt_("All Files (*)")));
2166
2167         if (result.first == FileDialog::Later)
2168                 return;
2169
2170         // FIXME UNICODE
2171         filename.set(fromqstr(result.second));
2172
2173         // check selected filename
2174         if (filename.empty()) {
2175                 // emit message signal.
2176                 message(_("Canceled."));
2177                 return;
2178         }
2179
2180         bv->insertPlaintextFile(filename, asParagraph);
2181 }
2182
2183
2184 bool GuiView::renameBuffer(Buffer & b, docstring const & newname)
2185 {
2186         FileName fname = b.fileName();
2187         FileName const oldname = fname;
2188
2189         if (!newname.empty()) {
2190                 // FIXME UNICODE
2191                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFileName());
2192         } else {
2193                 // Switch to this Buffer.
2194                 setBuffer(&b);
2195
2196                 // No argument? Ask user through dialog.
2197                 // FIXME UNICODE
2198                 FileDialog dlg(qt_("Choose a filename to save document as"),
2199                                    LFUN_BUFFER_WRITE_AS);
2200                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2201                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2202
2203                 if (!isLyXFileName(fname.absFileName()))
2204                         fname.changeExtension(".lyx");
2205
2206                 FileDialog::Result result =
2207                         dlg.save(toqstr(fname.onlyPath().absFileName()),
2208                                    QStringList(qt_("LyX Documents (*.lyx)")),
2209                                          toqstr(fname.onlyFileName()));
2210
2211                 if (result.first == FileDialog::Later)
2212                         return false;
2213
2214                 fname.set(fromqstr(result.second));
2215
2216                 if (fname.empty())
2217                         return false;
2218
2219                 if (!isLyXFileName(fname.absFileName()))
2220                         fname.changeExtension(".lyx");
2221         }
2222
2223         // fname is now the new Buffer location.
2224         if (FileName(fname).exists()) {
2225                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2226                 docstring text = bformat(_("The document %1$s already "
2227                                            "exists.\n\nDo you want to "
2228                                            "overwrite that document?"),
2229                                          file);
2230                 int const ret = Alert::prompt(_("Overwrite document?"),
2231                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2232                 switch (ret) {
2233                 case 0: break;
2234                 case 1: return renameBuffer(b, docstring());
2235                 case 2: return false;
2236                 }
2237         }
2238
2239         FileName oldauto = b.getAutosaveFileName();
2240
2241         // Ok, change the name of the buffer
2242         b.setFileName(fname.absFileName());
2243         b.markDirty();
2244         bool unnamed = b.isUnnamed();
2245         b.setUnnamed(false);
2246         b.saveCheckSum();
2247
2248         // bring the autosave file with us, just in case.
2249         b.moveAutosaveFile(oldauto);
2250
2251         if (!saveBuffer(b)) {
2252                 oldauto = b.getAutosaveFileName();
2253                 b.setFileName(oldname.absFileName());
2254                 b.setUnnamed(unnamed);
2255                 b.saveCheckSum();
2256                 b.moveAutosaveFile(oldauto);
2257                 return false;
2258         }
2259
2260         // validate version control data and
2261         // correct buffer title
2262         b.lyxvc().file_found_hook(b.fileName());
2263         b.updateTitles();
2264
2265         // the file has now been saved to the new location.
2266         // we need to check that the locations of child buffers
2267         // are still valid.
2268         b.checkChildBuffers();
2269
2270         return true;
2271 }
2272
2273
2274 bool GuiView::saveBuffer(Buffer & b)
2275 {
2276         if (workArea(b) && workArea(b)->inDialogMode())
2277                 return true;
2278
2279         if (b.isUnnamed())
2280                 return renameBuffer(b, docstring());
2281
2282         if (b.save()) {
2283                 theSession().lastFiles().add(b.fileName());
2284                 return true;
2285         }
2286
2287         // Switch to this Buffer.
2288         setBuffer(&b);
2289
2290         // FIXME: we don't tell the user *WHY* the save failed !!
2291         docstring const file = makeDisplayPath(b.absFileName(), 30);
2292         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2293                                    "Do you want to rename the document and "
2294                                    "try again?"), file);
2295         int const ret = Alert::prompt(_("Rename and save?"),
2296                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2297         switch (ret) {
2298         case 0:
2299                 if (!renameBuffer(b, docstring()))
2300                         return false;
2301                 break;
2302         case 1:
2303                 break;
2304         case 2:
2305                 return false;
2306         }
2307
2308         return saveBuffer(b);
2309 }
2310
2311
2312 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2313 {
2314         return closeWorkArea(wa, false);
2315 }
2316
2317
2318 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2319 {
2320         Buffer & buf = wa->bufferView().buffer();
2321         return closeWorkArea(wa, !buf.parent());
2322 }
2323
2324
2325 bool GuiView::closeBuffer()
2326 {
2327         GuiWorkArea * wa = currentMainWorkArea();
2328         setCurrentWorkArea(wa);
2329         Buffer & buf = wa->bufferView().buffer();
2330         return wa && closeWorkArea(wa, !buf.parent());
2331 }
2332
2333
2334 void GuiView::writeSession() const {
2335         GuiWorkArea const * active_wa = currentMainWorkArea();
2336         for (int i = 0; i < d.splitter_->count(); ++i) {
2337                 TabWorkArea * twa = d.tabWorkArea(i);
2338                 for (int j = 0; j < twa->count(); ++j) {
2339                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
2340                         Buffer & buf = wa->bufferView().buffer();
2341                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2342                 }
2343         }
2344 }
2345
2346
2347 bool GuiView::closeBufferAll()
2348 {
2349         // Close the workareas in all other views
2350         QList<int> const ids = guiApp->viewIds();
2351         for (int i = 0; i != ids.size(); ++i) {
2352                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2353                         return false;
2354         }
2355
2356         // Close our own workareas
2357         if (!closeWorkAreaAll())
2358                 return false;
2359
2360         // Now close the hidden buffers. We prevent hidden buffers from being
2361         // dirty, so we can just close them.
2362         theBufferList().closeAll();
2363         return true;
2364 }
2365
2366
2367 bool GuiView::closeWorkAreaAll()
2368 {
2369         setCurrentWorkArea(currentMainWorkArea());
2370
2371         // We might be in a situation that there is still a tabWorkArea, but
2372         // there are no tabs anymore. This can happen when we get here after a
2373         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2374         // many TabWorkArea's have no documents anymore.
2375         int empty_twa = 0;
2376
2377         // We have to call count() each time, because it can happen that
2378         // more than one splitter will disappear in one iteration (bug 5998).
2379         for (; d.splitter_->count() > empty_twa; ) {
2380                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2381
2382                 if (twa->count() == 0)
2383                         ++empty_twa;
2384                 else {
2385                         setCurrentWorkArea(twa->currentWorkArea());
2386                         if (!closeTabWorkArea(twa))
2387                                 return false;
2388                 }
2389         }
2390         return true;
2391 }
2392
2393
2394 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2395 {
2396         if (!wa)
2397                 return false;
2398
2399         Buffer & buf = wa->bufferView().buffer();
2400
2401         if (close_buffer && GuiViewPrivate::busyBuffers.contains(&buf)) {
2402                 Alert::warning(_("Close document "), _("Document could not be closed because it is processed by LyX."));
2403                 return false;
2404         }
2405
2406         if (close_buffer)
2407                 return closeBuffer(buf);
2408         else {
2409                 if (!inMultiTabs(wa))
2410                         if (!saveBufferIfNeeded(buf, true))
2411                                 return false;
2412                 removeWorkArea(wa);
2413                 return true;
2414         }
2415 }
2416
2417
2418 bool GuiView::closeBuffer(Buffer & buf)
2419 {
2420         // If we are in a close_event all children will be closed in some time,
2421         // so no need to do it here. This will ensure that the children end up
2422         // in the session file in the correct order. If we close the master
2423         // buffer, we can close or release the child buffers here too.
2424         if (!closing_) {
2425                 ListOfBuffers clist = buf.getChildren();
2426                 ListOfBuffers::const_iterator it = clist.begin();
2427                 ListOfBuffers::const_iterator const bend = clist.end();
2428                 for (; it != bend; ++it) {
2429                         // If a child is dirty, do not close
2430                         // without user intervention
2431                         //FIXME: should we look in other tabworkareas?
2432                         Buffer * child_buf = *it;
2433                         GuiWorkArea * child_wa = workArea(*child_buf);
2434                         if (child_wa) {
2435                                 if (!closeWorkArea(child_wa, true))
2436                                         return false;
2437                         } else
2438                                 theBufferList().releaseChild(&buf, child_buf);
2439                 }
2440         }
2441         // goto bookmark to update bookmark pit.
2442         //FIXME: we should update only the bookmarks related to this buffer!
2443         LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2444         for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2445                 guiApp->gotoBookmark(i+1, false, false);
2446
2447         if (saveBufferIfNeeded(buf, false)) {
2448                 buf.removeAutosaveFile();
2449                 theBufferList().release(&buf);
2450                 return true;
2451         }
2452         return false;
2453 }
2454
2455
2456 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2457 {
2458         while (twa == d.currentTabWorkArea()) {
2459                 twa->setCurrentIndex(twa->count()-1);
2460
2461                 GuiWorkArea * wa = twa->currentWorkArea();
2462                 Buffer & b = wa->bufferView().buffer();
2463
2464                 // We only want to close the buffer if the same buffer is not visible
2465                 // in another view, and if this is not a child and if we are closing
2466                 // a view (not a tabgroup).
2467                 bool const close_buffer =
2468                         !inMultiViews(wa) && !b.parent() && closing_;
2469
2470                 if (!closeWorkArea(wa, close_buffer))
2471                         return false;
2472         }
2473         return true;
2474 }
2475
2476
2477 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2478 {
2479         if (buf.isClean() || buf.paragraphs().empty())
2480                 return true;
2481
2482         // Switch to this Buffer.
2483         setBuffer(&buf);
2484
2485         docstring file;
2486         // FIXME: Unicode?
2487         if (buf.isUnnamed())
2488                 file = from_utf8(buf.fileName().onlyFileName());
2489         else
2490                 file = buf.fileName().displayName(30);
2491
2492         // Bring this window to top before asking questions.
2493         raise();
2494         activateWindow();
2495
2496         int ret;
2497         if (hiding && buf.isUnnamed()) {
2498                 docstring const text = bformat(_("The document %1$s has not been "
2499                                                  "saved yet.\n\nDo you want to save "
2500                                                  "the document?"), file);
2501                 ret = Alert::prompt(_("Save new document?"),
2502                         text, 0, 1, _("&Save"), _("&Cancel"));
2503                 if (ret == 1)
2504                         ++ret;
2505         } else {
2506                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2507                         "\n\nDo you want to save the document or discard the changes?"), file);
2508                 ret = Alert::prompt(_("Save changed document?"),
2509                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2510         }
2511
2512         switch (ret) {
2513         case 0:
2514                 if (!saveBuffer(buf))
2515                         return false;
2516                 break;
2517         case 1:
2518                 // if we crash after this we could
2519                 // have no autosave file but I guess
2520                 // this is really improbable (Jug)
2521                 // Sometime improbable things happen, bug 6857 (ps)
2522                 // buf.removeAutosaveFile();
2523                 if (hiding)
2524                         // revert all changes
2525                         reloadBuffer(buf);
2526                 buf.markClean();
2527                 break;
2528         case 2:
2529                 return false;
2530         }
2531         return true;
2532 }
2533
2534
2535 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2536 {
2537         Buffer & buf = wa->bufferView().buffer();
2538
2539         for (int i = 0; i != d.splitter_->count(); ++i) {
2540                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2541                 if (wa_ && wa_ != wa)
2542                         return true;
2543         }
2544         return inMultiViews(wa);
2545 }
2546
2547
2548 bool GuiView::inMultiViews(GuiWorkArea * wa)
2549 {
2550         QList<int> const ids = guiApp->viewIds();
2551         Buffer & buf = wa->bufferView().buffer();
2552
2553         int found_twa = 0;
2554         for (int i = 0; i != ids.size() && found_twa <= 1; ++i) {
2555                 if (id_ == ids[i])
2556                         continue;
2557
2558                 if (guiApp->view(ids[i]).workArea(buf))
2559                         return true;
2560         }
2561         return false;
2562 }
2563
2564
2565 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np)
2566 {
2567         Buffer * const curbuf = documentBufferView()
2568                 ? &documentBufferView()->buffer() : 0;
2569         Buffer * nextbuf = curbuf;
2570         while (true) {
2571                 if (np == NEXTBUFFER)
2572                         nextbuf = theBufferList().next(nextbuf);
2573                 else
2574                         nextbuf = theBufferList().previous(nextbuf);
2575                 if (nextbuf == curbuf)
2576                         break;
2577                 if (nextbuf == 0) {
2578                         nextbuf = curbuf;
2579                         break;
2580                 }
2581                 if (workArea(*nextbuf))
2582                         break;
2583         }
2584         setBuffer(nextbuf);
2585 }
2586
2587
2588 /// make sure the document is saved
2589 static bool ensureBufferClean(Buffer * buffer)
2590 {
2591         LASSERT(buffer, return false);
2592         if (buffer->isClean() && !buffer->isUnnamed())
2593                 return true;
2594
2595         docstring const file = buffer->fileName().displayName(30);
2596         docstring title;
2597         docstring text;
2598         if (!buffer->isUnnamed()) {
2599                 text = bformat(_("The document %1$s has unsaved "
2600                                                  "changes.\n\nDo you want to save "
2601                                                  "the document?"), file);
2602                 title = _("Save changed document?");
2603
2604         } else {
2605                 text = bformat(_("The document %1$s has not been "
2606                                                  "saved yet.\n\nDo you want to save "
2607                                                  "the document?"), file);
2608                 title = _("Save new document?");
2609         }
2610         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
2611
2612         if (ret == 0)
2613                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
2614
2615         return buffer->isClean() && !buffer->isUnnamed();
2616 }
2617
2618
2619 bool GuiView::reloadBuffer(Buffer & buf)
2620 {
2621         Buffer::ReadStatus status = buf.reload();
2622         return status == Buffer::ReadSuccess;
2623 }
2624
2625
2626 void GuiView::checkExternallyModifiedBuffers()
2627 {
2628         BufferList::iterator bit = theBufferList().begin();
2629         BufferList::iterator const bend = theBufferList().end();
2630         for (; bit != bend; ++bit) {
2631                 Buffer * buf = *bit;
2632                 if (buf->fileName().exists()
2633                         && buf->isExternallyModified(Buffer::checksum_method)) {
2634                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
2635                                         " Reload now? Any local changes will be lost."),
2636                                         from_utf8(buf->absFileName()));
2637                         int const ret = Alert::prompt(_("Reload externally changed document?"),
2638                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
2639                         if (!ret)
2640                                 reloadBuffer(*buf);
2641                 }
2642         }
2643 }
2644
2645
2646 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
2647 {
2648         Buffer * buffer = documentBufferView()
2649                 ? &(documentBufferView()->buffer()) : 0;
2650
2651         switch (cmd.action()) {
2652         case LFUN_VC_REGISTER:
2653                 if (!buffer || !ensureBufferClean(buffer))
2654                         break;
2655                 if (!buffer->lyxvc().inUse()) {
2656                         if (buffer->lyxvc().registrer()) {
2657                                 reloadBuffer(*buffer);
2658                                 dr.suppressMessageUpdate();
2659                         }
2660                 }
2661                 break;
2662
2663         case LFUN_VC_CHECK_IN:
2664                 if (!buffer || !ensureBufferClean(buffer))
2665                         break;
2666                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
2667                         dr.setMessage(buffer->lyxvc().checkIn());
2668                         if (!dr.message().empty())
2669                                 reloadBuffer(*buffer);
2670                 }
2671                 break;
2672
2673         case LFUN_VC_CHECK_OUT:
2674                 if (!buffer || !ensureBufferClean(buffer))
2675                         break;
2676                 if (buffer->lyxvc().inUse()) {
2677                         dr.setMessage(buffer->lyxvc().checkOut());
2678                         reloadBuffer(*buffer);
2679                 }
2680                 break;
2681
2682         case LFUN_VC_LOCKING_TOGGLE:
2683                 LASSERT(buffer, return);
2684                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
2685                         break;
2686                 if (buffer->lyxvc().inUse()) {
2687                         string res = buffer->lyxvc().lockingToggle();
2688                         if (res.empty()) {
2689                                 frontend::Alert::error(_("Revision control error."),
2690                                 _("Error when setting the locking property."));
2691                         } else {
2692                                 dr.setMessage(res);
2693                                 reloadBuffer(*buffer);
2694                         }
2695                 }
2696                 break;
2697
2698         case LFUN_VC_REVERT:
2699                 LASSERT(buffer, return);
2700                 buffer->lyxvc().revert();
2701                 reloadBuffer(*buffer);
2702                 dr.suppressMessageUpdate();
2703                 break;
2704
2705         case LFUN_VC_UNDO_LAST:
2706                 LASSERT(buffer, return);
2707                 buffer->lyxvc().undoLast();
2708                 reloadBuffer(*buffer);
2709                 dr.suppressMessageUpdate();
2710                 break;
2711
2712         case LFUN_VC_REPO_UPDATE:
2713                 LASSERT(buffer, return);
2714                 if (ensureBufferClean(buffer)) {
2715                         dr.setMessage(buffer->lyxvc().repoUpdate());
2716                         checkExternallyModifiedBuffers();
2717                 }
2718                 break;
2719
2720         case LFUN_VC_COMMAND: {
2721                 string flag = cmd.getArg(0);
2722                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
2723                         break;
2724                 docstring message;
2725                 if (contains(flag, 'M')) {
2726                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
2727                                 break;
2728                 }
2729                 string path = cmd.getArg(1);
2730                 if (contains(path, "$$p") && buffer)
2731                         path = subst(path, "$$p", buffer->filePath());
2732                 LYXERR(Debug::LYXVC, "Directory: " << path);
2733                 FileName pp(path);
2734                 if (!pp.isReadableDirectory()) {
2735                         lyxerr << _("Directory is not accessible.") << endl;
2736                         break;
2737                 }
2738                 support::PathChanger p(pp);
2739
2740                 string command = cmd.getArg(2);
2741                 if (command.empty())
2742                         break;
2743                 if (buffer) {
2744                         command = subst(command, "$$i", buffer->absFileName());
2745                         command = subst(command, "$$p", buffer->filePath());
2746                 }
2747                 command = subst(command, "$$m", to_utf8(message));
2748                 LYXERR(Debug::LYXVC, "Command: " << command);
2749                 Systemcall one;
2750                 one.startscript(Systemcall::Wait, command);
2751
2752                 if (!buffer)
2753                         break;
2754                 if (contains(flag, 'I'))
2755                         buffer->markDirty();
2756                 if (contains(flag, 'R'))
2757                         reloadBuffer(*buffer);
2758
2759                 break;
2760                 }
2761
2762         case LFUN_VC_COMPARE: {
2763
2764                 if (cmd.argument().empty()) {
2765                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
2766                         break;
2767                 }
2768
2769                 string rev1 = cmd.getArg(0);
2770                 string f1, f2;
2771
2772                 // f1
2773                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
2774                         break;
2775
2776                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
2777                         f2 = buffer->absFileName();
2778                 } else {
2779                         string rev2 = cmd.getArg(1);
2780                         if (rev2.empty())
2781                                 break;
2782                         // f2
2783                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
2784                                 break;
2785                 }
2786
2787                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
2788                                         f1 << "\n"  << f2 << "\n" );
2789                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
2790                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
2791                 break;
2792         }
2793
2794         default:
2795                 break;
2796         }
2797 }
2798
2799
2800 void GuiView::openChildDocument(string const & fname)
2801 {
2802         LASSERT(documentBufferView(), return);
2803         Buffer & buffer = documentBufferView()->buffer();
2804         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
2805         documentBufferView()->saveBookmark(false);
2806         Buffer * child = 0;
2807         if (theBufferList().exists(filename)) {
2808                 child = theBufferList().getBuffer(filename);
2809                 setBuffer(child);
2810         } else {
2811                 message(bformat(_("Opening child document %1$s..."),
2812                         makeDisplayPath(filename.absFileName())));
2813                 child = loadDocument(filename, false);
2814         }
2815         // Set the parent name of the child document.
2816         // This makes insertion of citations and references in the child work,
2817         // when the target is in the parent or another child document.
2818         if (child)
2819                 child->setParent(&buffer);
2820 }
2821
2822
2823 bool GuiView::goToFileRow(string const & argument)
2824 {
2825         string file_name;
2826         int row;
2827         size_t i = argument.find_last_of(' ');
2828         if (i != string::npos) {
2829                 file_name = os::internal_path(trim(argument.substr(0, i)));
2830                 istringstream is(argument.substr(i + 1));
2831                 is >> row;
2832                 if (is.fail())
2833                         i = string::npos;
2834         }
2835         if (i == string::npos) {
2836                 LYXERR0("Wrong argument: " << argument);
2837                 return false;
2838         }
2839         Buffer * buf = 0;
2840         string const abstmp = package().temp_dir().absFileName();
2841         string const realtmp = package().temp_dir().realPath();
2842         // We have to use os::path_prefix_is() here, instead of
2843         // simply prefixIs(), because the file name comes from
2844         // an external application and may need case adjustment.
2845         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
2846                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
2847                 // Needed by inverse dvi search. If it is a file
2848                 // in tmpdir, call the apropriated function.
2849                 // If tmpdir is a symlink, we may have the real
2850                 // path passed back, so we correct for that.
2851                 if (!prefixIs(file_name, abstmp))
2852                         file_name = subst(file_name, realtmp, abstmp);
2853                 buf = theBufferList().getBufferFromTmp(file_name);
2854         } else {
2855                 // Must replace extension of the file to be .lyx
2856                 // and get full path
2857                 FileName const s = fileSearch(string(),
2858                                                   support::changeExtension(file_name, ".lyx"), "lyx");
2859                 // Either change buffer or load the file
2860                 if (theBufferList().exists(s))
2861                         buf = theBufferList().getBuffer(s);
2862                 else if (s.exists()) {
2863                         buf = loadDocument(s);
2864                         if (!buf)
2865                                 return false;
2866                 } else {
2867                         message(bformat(
2868                                         _("File does not exist: %1$s"),
2869                                         makeDisplayPath(file_name)));
2870                         return false;
2871                 }
2872         }
2873         setBuffer(buf);
2874         documentBufferView()->setCursorFromRow(row);
2875         return true;
2876 }
2877
2878
2879 #if (QT_VERSION >= 0x040400)
2880 template<class T>
2881 docstring GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format, string const & msg)
2882 {
2883         bool const update_unincluded =
2884                                 buffer->params().maintain_unincluded_children
2885                                 && !buffer->params().getIncludedChildren().empty();
2886         bool const success = func(format, update_unincluded);
2887         delete buffer;
2888         busyBuffers.remove(orig);
2889         return success
2890                 ? bformat(_("Successful " + msg + " to format: %1$s"), from_utf8(format))
2891                 : bformat(_("Error " + msg + " format: %1$s"), from_utf8(format));
2892 }
2893
2894 docstring GuiView::GuiViewPrivate::compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2895 {
2896         bool (Buffer::* mem_func)(std::string const &, bool, bool) const = &Buffer::doExport;
2897         return runAndDestroy(bind(mem_func, buffer, _1, true, _2), orig, buffer, format, "export");
2898 }
2899
2900 docstring GuiView::GuiViewPrivate::exportAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2901 {
2902         bool (Buffer::* mem_func)(std::string const &, bool, bool) const = &Buffer::doExport;
2903         return runAndDestroy(bind(mem_func, buffer, _1, false, _2), orig, buffer, format, "export");
2904
2905 }
2906
2907 docstring GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2908 {
2909         bool(Buffer::* mem_func)(std::string const &, bool) const = &Buffer::preview;
2910         return runAndDestroy(bind(mem_func, buffer, _1, _2), orig, buffer, format, "preview");
2911 }
2912 #endif
2913
2914
2915 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
2916                            string const & argument,
2917                            Buffer const * used_buffer,
2918                            docstring const & msg,
2919                            docstring (*asyncFunc)(Buffer const *, Buffer *, string const &),
2920                            bool (Buffer::*syncFunc)(string const &, bool, bool) const,
2921                            bool (Buffer::*previewFunc)(string const &, bool) const)
2922 {
2923         if (!used_buffer) {
2924                 return false;
2925         }
2926         gv_->processingThreadStarted();
2927         string format = argument;
2928         if (format.empty()) {
2929                 format = used_buffer->getDefaultOutputFormat();
2930         }
2931 #if EXPORT_in_THREAD && (QT_VERSION >= 0x040400)
2932         if (!msg.empty()) {
2933                 progress_->clearMessages();
2934                 gv_->message(msg);
2935         }
2936         GuiViewPrivate::busyBuffers.insert(used_buffer);
2937         QFuture<docstring> f = QtConcurrent::run(
2938                                 asyncFunc,
2939                                 used_buffer,
2940                                 used_buffer->clone(),
2941                                 format);
2942         setPreviewFuture(f);
2943         last_export_format = used_buffer->bufferFormat();
2944         (void) syncFunc;
2945         (void) previewFunc;
2946         // We are asynchronous, so we don't know here anything about the success
2947         return true;
2948 #else
2949         bool const update_unincluded =
2950                 used_buffer->params().maintain_unincluded_children &&
2951                 !used_buffer->params().getIncludedChildren().empty();
2952         if (syncFunc) {
2953                 return (used_buffer->*syncFunc)(format, true, update_unincluded);
2954         } else if (previewFunc) {
2955                 return (used_buffer->*previewFunc)(format, update_unincluded);
2956         }
2957         (void) asyncFunc;
2958         return false;
2959 #endif
2960 }
2961
2962 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
2963 {
2964         BufferView * bv = currentBufferView();
2965         // By default we won't need any update.
2966         dr.screenUpdate(Update::None);
2967         // assume cmd will be dispatched
2968         dr.dispatched(true);
2969
2970         Buffer * doc_buffer = documentBufferView()
2971                 ? &(documentBufferView()->buffer()) : 0;
2972
2973         if (cmd.origin() == FuncRequest::TOC) {
2974                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
2975                 // FIXME: do we need to pass a DispatchResult object here?
2976                 toc->doDispatch(bv->cursor(), cmd);
2977                 return;
2978         }
2979
2980         string const argument = to_utf8(cmd.argument());
2981
2982         switch(cmd.action()) {
2983                 case LFUN_BUFFER_CHILD_OPEN:
2984                         openChildDocument(to_utf8(cmd.argument()));
2985                         break;
2986
2987                 case LFUN_BUFFER_IMPORT:
2988                         importDocument(to_utf8(cmd.argument()));
2989                         break;
2990
2991                 case LFUN_BUFFER_EXPORT: {
2992                         if (!doc_buffer)
2993                                 break;
2994                         // GCC only sees strfwd.h when building merged
2995                         if (::lyx::operator==(cmd.argument(), "custom")) {
2996                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
2997                                 break;
2998                         }
2999 #if 0
3000                         // TODO Remove if we could export asynchronous
3001                         if (!doc_buffer->doExport(argument, false)) {
3002                                 dr.setError(true);
3003                                 dr.setMessage(bformat(_("Error exporting to format: %1$s."),
3004                                         cmd.argument()));
3005                         }
3006 #else
3007                         /* TODO/Review: Is it a problem to also export the children?
3008                                         See the update_unincluded flag */
3009                         d.asyncBufferProcessing(argument,
3010                                                 doc_buffer,
3011                                                 _("Exporting ..."),
3012                                                 &GuiViewPrivate::exportAndDestroy,
3013                                                 &Buffer::doExport,
3014                                                 0);
3015                         // TODO Inform user about success
3016 #endif
3017                         break;
3018                 }
3019
3020                 case LFUN_BUFFER_UPDATE: {
3021                         d.asyncBufferProcessing(argument,
3022                                                 doc_buffer,
3023                                                 _("Exporting ..."),
3024                                                 &GuiViewPrivate::compileAndDestroy,
3025                                                 &Buffer::doExport,
3026                                                 0);
3027                         break;
3028                 }
3029                 case LFUN_BUFFER_VIEW: {
3030                         d.asyncBufferProcessing(argument,
3031                                                 doc_buffer,
3032                                                 _("Previewing ..."),
3033                                                 &GuiViewPrivate::previewAndDestroy,
3034                                                 0,
3035                                                 &Buffer::preview);
3036                         break;
3037                 }
3038                 case LFUN_MASTER_BUFFER_UPDATE: {
3039                         d.asyncBufferProcessing(argument,
3040                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3041                                                 docstring(),
3042                                                 &GuiViewPrivate::compileAndDestroy,
3043                                                 &Buffer::doExport,
3044                                                 0);
3045                         break;
3046                 }
3047                 case LFUN_MASTER_BUFFER_VIEW: {
3048                         d.asyncBufferProcessing(argument,
3049                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3050                                                 docstring(),
3051                                                 &GuiViewPrivate::previewAndDestroy,
3052                                                 0, &Buffer::preview);
3053                         break;
3054                 }
3055                 case LFUN_BUFFER_SWITCH: {
3056                         string const file_name = to_utf8(cmd.argument());
3057                         if (!FileName::isAbsolute(file_name)) {
3058                                 dr.setError(true);
3059                                 dr.setMessage(_("Absolute filename expected."));
3060                                 break;
3061                         }
3062
3063                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3064                         if (!buffer) {
3065                                 dr.setError(true);
3066                                 dr.setMessage(_("Document not loaded"));
3067                                 break;
3068                         }
3069
3070                         // Do we open or switch to the buffer in this view ?
3071                         if (workArea(*buffer)
3072                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3073                                 setBuffer(buffer);
3074                                 break;
3075                         }
3076
3077                         // Look for the buffer in other views
3078                         QList<int> const ids = guiApp->viewIds();
3079                         int i = 0;
3080                         for (; i != ids.size(); ++i) {
3081                                 GuiView & gv = guiApp->view(ids[i]);
3082                                 if (gv.workArea(*buffer)) {
3083                                         gv.activateWindow();
3084                                         gv.setBuffer(buffer);
3085                                         break;
3086                                 }
3087                         }
3088
3089                         // If necessary, open a new window as a last resort
3090                         if (i == ids.size()) {
3091                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3092                                 lyx::dispatch(cmd);
3093                         }
3094                         break;
3095                 }
3096
3097                 case LFUN_BUFFER_NEXT:
3098                         gotoNextOrPreviousBuffer(NEXTBUFFER);
3099                         break;
3100
3101                 case LFUN_BUFFER_PREVIOUS:
3102                         gotoNextOrPreviousBuffer(PREVBUFFER);
3103                         break;
3104
3105                 case LFUN_COMMAND_EXECUTE: {
3106                         bool const show_it = cmd.argument() != "off";
3107                         // FIXME: this is a hack, "minibuffer" should not be
3108                         // hardcoded.
3109                         if (GuiToolbar * t = toolbar("minibuffer")) {
3110                                 t->setVisible(show_it);
3111                                 if (show_it && t->commandBuffer())
3112                                         t->commandBuffer()->setFocus();
3113                         }
3114                         break;
3115                 }
3116                 case LFUN_DROP_LAYOUTS_CHOICE:
3117                         d.layout_->showPopup();
3118                         break;
3119
3120                 case LFUN_MENU_OPEN:
3121                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3122                                 menu->exec(QCursor::pos());
3123                         break;
3124
3125                 case LFUN_FILE_INSERT:
3126                         insertLyXFile(cmd.argument());
3127                         break;
3128
3129                 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
3130                         insertPlaintextFile(cmd.argument(), true);
3131                         break;
3132
3133                 case LFUN_FILE_INSERT_PLAINTEXT:
3134                         insertPlaintextFile(cmd.argument(), false);
3135                         break;
3136
3137                 case LFUN_BUFFER_RELOAD: {
3138                         LASSERT(doc_buffer, break);
3139
3140                         int ret = 0;
3141                         if (!doc_buffer->isClean()) {
3142                                 docstring const file =
3143                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3144                                 docstring text = bformat(_("Any changes will be lost. "
3145                                         "Are you sure you want to revert to the saved version "
3146                                         "of the document %1$s?"), file);
3147                                 ret = Alert::prompt(_("Revert to saved document?"),
3148                                         text, 1, 1, _("&Revert"), _("&Cancel"));
3149                         }
3150
3151                         if (ret == 0) {
3152                                 doc_buffer->markClean();
3153                                 reloadBuffer(*doc_buffer);
3154                                 dr.forceBufferUpdate();
3155                         }
3156                         break;
3157                 }
3158
3159                 case LFUN_BUFFER_WRITE:
3160                         LASSERT(doc_buffer, break);
3161                         saveBuffer(*doc_buffer);
3162                         break;
3163
3164                 case LFUN_BUFFER_WRITE_AS:
3165                         LASSERT(doc_buffer, break);
3166                         renameBuffer(*doc_buffer, cmd.argument());
3167                         break;
3168
3169                 case LFUN_BUFFER_WRITE_ALL: {
3170                         Buffer * first = theBufferList().first();
3171                         if (!first)
3172                                 break;
3173                         message(_("Saving all documents..."));
3174                         // We cannot use a for loop as the buffer list cycles.
3175                         Buffer * b = first;
3176                         do {
3177                                 if (!b->isClean()) {
3178                                         saveBuffer(*b);
3179                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3180                                 }
3181                                 b = theBufferList().next(b);
3182                         } while (b != first);
3183                         dr.setMessage(_("All documents saved."));
3184                         break;
3185                 }
3186
3187                 case LFUN_BUFFER_CLOSE:
3188                         closeBuffer();
3189                         break;
3190
3191                 case LFUN_BUFFER_CLOSE_ALL:
3192                         closeBufferAll();
3193                         break;
3194
3195                 case LFUN_TOOLBAR_TOGGLE: {
3196                         string const name = cmd.getArg(0);
3197                         if (GuiToolbar * t = toolbar(name))
3198                                 t->toggle();
3199                         break;
3200                 }
3201
3202                 case LFUN_DIALOG_UPDATE: {
3203                         string const name = to_utf8(cmd.argument());
3204                         if (name == "prefs" || name == "document")
3205                                 updateDialog(name, string());
3206                         else if (name == "paragraph")
3207                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3208                         else if (currentBufferView()) {
3209                                 Inset * inset = currentBufferView()->editedInset(name);
3210                                 // Can only update a dialog connected to an existing inset
3211                                 if (inset) {
3212                                         // FIXME: get rid of this indirection; GuiView ask the inset
3213                                         // if he is kind enough to update itself...
3214                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3215                                         //FIXME: pass DispatchResult here?
3216                                         inset->dispatch(currentBufferView()->cursor(), fr);
3217                                 }
3218                         }
3219                         break;
3220                 }
3221
3222                 case LFUN_DIALOG_TOGGLE: {
3223                         if (isDialogVisible(cmd.getArg(0)))
3224                                 dispatch(FuncRequest(LFUN_DIALOG_HIDE, cmd.argument()), dr);
3225                         else
3226                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, cmd.argument()), dr);
3227                         break;
3228                 }
3229
3230                 case LFUN_DIALOG_DISCONNECT_INSET:
3231                         disconnectDialog(to_utf8(cmd.argument()));
3232                         break;
3233
3234                 case LFUN_DIALOG_HIDE: {
3235                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3236                         break;
3237                 }
3238
3239                 case LFUN_DIALOG_SHOW: {
3240                         string const name = cmd.getArg(0);
3241                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3242
3243                         if (name == "character") {
3244                                 data = freefont2string();
3245                                 if (!data.empty())
3246                                         showDialog("character", data);
3247                         } else if (name == "latexlog") {
3248                                 Buffer::LogType type;
3249                                 string const logfile = doc_buffer->logName(&type);
3250                                 switch (type) {
3251                                 case Buffer::latexlog:
3252                                         data = "latex ";
3253                                         break;
3254                                 case Buffer::buildlog:
3255                                         data = "literate ";
3256                                         break;
3257                                 }
3258                                 data += Lexer::quoteString(logfile);
3259                                 showDialog("log", data);
3260                         } else if (name == "vclog") {
3261                                 string const data = "vc " +
3262                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3263                                 showDialog("log", data);
3264                         } else if (name == "symbols") {
3265                                 data = bv->cursor().getEncoding()->name();
3266                                 if (!data.empty())
3267                                         showDialog("symbols", data);
3268                         // bug 5274
3269                         } else if (name == "prefs" && isFullScreen()) {
3270                                 lfunUiToggle("fullscreen");
3271                                 showDialog("prefs", data);
3272                         } else
3273                                 showDialog(name, data);
3274                         break;
3275                 }
3276
3277                 case LFUN_MESSAGE:
3278                         dr.setMessage(cmd.argument());
3279                         break;
3280
3281                 case LFUN_UI_TOGGLE: {
3282                         string arg = cmd.getArg(0);
3283                         if (!lfunUiToggle(arg)) {
3284                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3285                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3286                         }
3287                         // Make sure the keyboard focus stays in the work area.
3288                         setFocus();
3289                         break;
3290                 }
3291
3292                 case LFUN_SPLIT_VIEW: {
3293                         LASSERT(doc_buffer, break);
3294                         string const orientation = cmd.getArg(0);
3295                         d.splitter_->setOrientation(orientation == "vertical"
3296                                 ? Qt::Vertical : Qt::Horizontal);
3297                         TabWorkArea * twa = addTabWorkArea();
3298                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3299                         setCurrentWorkArea(wa);
3300                         break;
3301                 }
3302                 case LFUN_CLOSE_TAB_GROUP:
3303                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3304                                 closeTabWorkArea(twa);
3305                                 d.current_work_area_ = 0;
3306                                 twa = d.currentTabWorkArea();
3307                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3308                                 if (twa) {
3309                                         // Make sure the work area is up to date.
3310                                         setCurrentWorkArea(twa->currentWorkArea());
3311                                 } else {
3312                                         setCurrentWorkArea(0);
3313                                 }
3314                         }
3315                         break;
3316
3317                 case LFUN_COMPLETION_INLINE:
3318                         if (d.current_work_area_)
3319                                 d.current_work_area_->completer().showInline();
3320                         break;
3321
3322                 case LFUN_COMPLETION_POPUP:
3323                         if (d.current_work_area_)
3324                                 d.current_work_area_->completer().showPopup();
3325                         break;
3326
3327
3328                 case LFUN_COMPLETION_COMPLETE:
3329                         if (d.current_work_area_)
3330                                 d.current_work_area_->completer().tab();
3331                         break;
3332
3333                 case LFUN_COMPLETION_CANCEL:
3334                         if (d.current_work_area_) {
3335                                 if (d.current_work_area_->completer().popupVisible())
3336                                         d.current_work_area_->completer().hidePopup();
3337                                 else
3338                                         d.current_work_area_->completer().hideInline();
3339                         }
3340                         break;
3341
3342                 case LFUN_COMPLETION_ACCEPT:
3343                         if (d.current_work_area_)
3344                                 d.current_work_area_->completer().activate();
3345                         break;
3346
3347                 case LFUN_BUFFER_ZOOM_IN:
3348                 case LFUN_BUFFER_ZOOM_OUT:
3349                         if (cmd.argument().empty()) {
3350                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3351                                         lyxrc.zoom += 20;
3352                                 else
3353                                         lyxrc.zoom -= 20;
3354                         } else
3355                                 lyxrc.zoom += convert<int>(cmd.argument());
3356
3357                         if (lyxrc.zoom < 10)
3358                                 lyxrc.zoom = 10;
3359
3360                         // The global QPixmapCache is used in GuiPainter to cache text
3361                         // painting so we must reset it.
3362                         QPixmapCache::clear();
3363                         guiApp->fontLoader().update();
3364                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3365                         break;
3366
3367                 case LFUN_VC_REGISTER:
3368                 case LFUN_VC_CHECK_IN:
3369                 case LFUN_VC_CHECK_OUT:
3370                 case LFUN_VC_REPO_UPDATE:
3371                 case LFUN_VC_LOCKING_TOGGLE:
3372                 case LFUN_VC_REVERT:
3373                 case LFUN_VC_UNDO_LAST:
3374                 case LFUN_VC_COMMAND:
3375                 case LFUN_VC_COMPARE:
3376                         dispatchVC(cmd, dr);
3377                         break;
3378
3379                 case LFUN_SERVER_GOTO_FILE_ROW:
3380                         goToFileRow(to_utf8(cmd.argument()));
3381                         break;
3382
3383                 case LFUN_FORWARD_SEARCH: {
3384                         FileName const path(doc_buffer->temppath());
3385                         string const texname = doc_buffer->latexName();
3386                         FileName const dviname(addName(path.absFileName(),
3387                                     support::changeExtension(texname, "dvi")));
3388                         FileName const pdfname(addName(path.absFileName(),
3389                                     support::changeExtension(texname, "pdf")));
3390                         if (!dviname.exists() && !pdfname.exists()) {
3391                                 dr.setMessage(_("Please, preview the document first."));
3392                                 break;
3393                         }
3394                         string outname = dviname.onlyFileName();
3395                         string command = lyxrc.forward_search_dvi;
3396                         if (!dviname.exists() ||
3397                             pdfname.lastModified() > dviname.lastModified()) {
3398                                 outname = pdfname.onlyFileName();
3399                                 command = lyxrc.forward_search_pdf;
3400                         }
3401
3402                         int row = doc_buffer->texrow().getRowFromIdPos(bv->cursor().paragraph().id(), bv->cursor().pos());
3403                         LYXERR(Debug::ACTION, "Forward search: row:" << row
3404                                 << " id:" << bv->cursor().paragraph().id());
3405                         if (!row || command.empty()) {
3406                                 dr.setMessage(_("Couldn't proceed."));
3407                                 break;
3408                         }
3409                         string texrow = convert<string>(row);
3410
3411                         command = subst(command, "$$n", texrow);
3412                         command = subst(command, "$$t", texname);
3413                         command = subst(command, "$$o", outname);
3414
3415                         PathChanger p(path);
3416                         Systemcall one;
3417                         one.startscript(Systemcall::DontWait, command);
3418                         break;
3419                 }
3420                 default:
3421                         dr.dispatched(false);
3422                         break;
3423         }
3424
3425         // Part of automatic menu appearance feature.
3426         if (isFullScreen()) {
3427                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
3428                         menuBar()->hide();
3429                 if (statusBar()->isVisible())
3430                         statusBar()->hide();
3431         }
3432
3433         return;
3434 }
3435
3436
3437 bool GuiView::lfunUiToggle(string const & ui_component)
3438 {
3439         if (ui_component == "scrollbar") {
3440                 // hide() is of no help
3441                 if (d.current_work_area_->verticalScrollBarPolicy() ==
3442                         Qt::ScrollBarAlwaysOff)
3443
3444                         d.current_work_area_->setVerticalScrollBarPolicy(
3445                                 Qt::ScrollBarAsNeeded);
3446                 else
3447                         d.current_work_area_->setVerticalScrollBarPolicy(
3448                                 Qt::ScrollBarAlwaysOff);
3449         } else if (ui_component == "statusbar") {
3450                 statusBar()->setVisible(!statusBar()->isVisible());
3451         } else if (ui_component == "menubar") {
3452                 menuBar()->setVisible(!menuBar()->isVisible());
3453         } else
3454 #if QT_VERSION >= 0x040300
3455         if (ui_component == "frame") {
3456                 int l, t, r, b;
3457                 getContentsMargins(&l, &t, &r, &b);
3458                 //are the frames in default state?
3459                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
3460                 if (l == 0) {
3461                         setContentsMargins(-2, -2, -2, -2);
3462                 } else {
3463                         setContentsMargins(0, 0, 0, 0);
3464                 }
3465         } else
3466 #endif
3467         if (ui_component == "fullscreen") {
3468                 toggleFullScreen();
3469         } else
3470                 return false;
3471         return true;
3472 }
3473
3474
3475 void GuiView::toggleFullScreen()
3476 {
3477         if (isFullScreen()) {
3478                 for (int i = 0; i != d.splitter_->count(); ++i)
3479                         d.tabWorkArea(i)->setFullScreen(false);
3480 #if QT_VERSION >= 0x040300
3481                 setContentsMargins(0, 0, 0, 0);
3482 #endif
3483                 setWindowState(windowState() ^ Qt::WindowFullScreen);
3484                 restoreLayout();
3485                 menuBar()->show();
3486                 statusBar()->show();
3487         } else {
3488                 // bug 5274
3489                 hideDialogs("prefs", 0);
3490                 for (int i = 0; i != d.splitter_->count(); ++i)
3491                         d.tabWorkArea(i)->setFullScreen(true);
3492 #if QT_VERSION >= 0x040300
3493                 setContentsMargins(-2, -2, -2, -2);
3494 #endif
3495                 saveLayout();
3496                 setWindowState(windowState() ^ Qt::WindowFullScreen);
3497                 statusBar()->hide();
3498                 if (lyxrc.full_screen_menubar)
3499                         menuBar()->hide();
3500                 if (lyxrc.full_screen_toolbars) {
3501                         ToolbarMap::iterator end = d.toolbars_.end();
3502                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
3503                                 it->second->hide();
3504                 }
3505         }
3506
3507         // give dialogs like the TOC a chance to adapt
3508         updateDialogs();
3509 }
3510
3511
3512 Buffer const * GuiView::updateInset(Inset const * inset)
3513 {
3514         if (!inset)
3515                 return 0;
3516
3517         Buffer const * inset_buffer = &(inset->buffer());
3518
3519         for (int i = 0; i != d.splitter_->count(); ++i) {
3520                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
3521                 if (!wa)
3522                         continue;
3523                 Buffer const * buffer = &(wa->bufferView().buffer());
3524                 if (inset_buffer == buffer)
3525                         wa->scheduleRedraw();
3526         }
3527         return inset_buffer;
3528 }
3529
3530
3531 void GuiView::restartCursor()
3532 {
3533         /* When we move around, or type, it's nice to be able to see
3534          * the cursor immediately after the keypress.
3535          */
3536         if (d.current_work_area_)
3537                 d.current_work_area_->startBlinkingCursor();
3538
3539         // Take this occasion to update the other GUI elements.
3540         updateDialogs();
3541         updateStatusBar();
3542 }
3543
3544
3545 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
3546 {
3547         if (d.current_work_area_)
3548                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
3549 }
3550
3551 namespace {
3552
3553 // This list should be kept in sync with the list of insets in
3554 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
3555 // dialog should have the same name as the inset.
3556 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
3557 // docs in LyXAction.cpp.
3558
3559 char const * const dialognames[] = {
3560
3561 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
3562 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
3563 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
3564 "href", "include", "index", "index_print", "info", "listings", "label", "line",
3565 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
3566 "nomencl_print", "note", "paragraph", "phantom", "prefs", "print", "ref",
3567 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
3568 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
3569
3570 char const * const * const end_dialognames =
3571         dialognames + (sizeof(dialognames) / sizeof(char *));
3572
3573 class cmpCStr {
3574 public:
3575         cmpCStr(char const * name) : name_(name) {}
3576         bool operator()(char const * other) {
3577                 return strcmp(other, name_) == 0;
3578         }
3579 private:
3580         char const * name_;
3581 };
3582
3583
3584 bool isValidName(string const & name)
3585 {
3586         return find_if(dialognames, end_dialognames,
3587                                 cmpCStr(name.c_str())) != end_dialognames;
3588 }
3589
3590 } // namespace anon
3591
3592
3593 void GuiView::resetDialogs()
3594 {
3595         // Make sure that no LFUN uses any GuiView.
3596         guiApp->setCurrentView(0);
3597         saveLayout();
3598         menuBar()->clear();
3599         constructToolbars();
3600         guiApp->menus().fillMenuBar(menuBar(), this, false);
3601         d.layout_->updateContents(true);
3602         // Now update controls with current buffer.
3603         guiApp->setCurrentView(this);
3604         restoreLayout();
3605         restartCursor();
3606 }
3607
3608
3609 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
3610 {
3611         if (!isValidName(name))
3612                 return 0;
3613
3614         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
3615
3616         if (it != d.dialogs_.end()) {
3617                 if (hide_it)
3618                         it->second->hideView();
3619                 return it->second.get();
3620         }
3621
3622         Dialog * dialog = build(name);
3623         d.dialogs_[name].reset(dialog);
3624         if (lyxrc.allow_geometry_session)
3625                 dialog->restoreSession();
3626         if (hide_it)
3627                 dialog->hideView();
3628         return dialog;
3629 }
3630
3631
3632 void GuiView::showDialog(string const & name, string const & data,
3633         Inset * inset)
3634 {
3635         triggerShowDialog(toqstr(name), toqstr(data), inset);
3636 }
3637
3638
3639 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
3640         Inset * inset)
3641 {
3642         if (d.in_show_)
3643                 return;
3644
3645         const string name = fromqstr(qname);
3646         const string data = fromqstr(qdata);
3647
3648         d.in_show_ = true;
3649         try {
3650                 Dialog * dialog = findOrBuild(name, false);
3651                 if (dialog) {
3652                         bool const visible = dialog->isVisibleView();
3653                         dialog->showData(data);
3654                         if (inset && currentBufferView())
3655                                 currentBufferView()->editInset(name, inset);
3656                         // We only set the focus to the new dialog if it was not yet
3657                         // visible in order not to change the existing previous behaviour
3658                         if (visible) {
3659                                 // activateWindow is needed for floating dockviews
3660                                 dialog->asQWidget()->raise();
3661                                 dialog->asQWidget()->activateWindow();
3662                                 dialog->asQWidget()->setFocus();
3663                         }
3664                 }
3665         }
3666         catch (ExceptionMessage const & ex) {
3667                 d.in_show_ = false;
3668                 throw ex;
3669         }
3670         d.in_show_ = false;
3671 }
3672
3673
3674 bool GuiView::isDialogVisible(string const & name) const
3675 {
3676         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3677         if (it == d.dialogs_.end())
3678                 return false;
3679         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
3680 }
3681
3682
3683 void GuiView::hideDialog(string const & name, Inset * inset)
3684 {
3685         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3686         if (it == d.dialogs_.end())
3687                 return;
3688
3689         if (inset && currentBufferView()
3690                 && inset != currentBufferView()->editedInset(name))
3691                 return;
3692
3693         Dialog * const dialog = it->second.get();
3694         if (dialog->isVisibleView())
3695                 dialog->hideView();
3696         if (currentBufferView())
3697                 currentBufferView()->editInset(name, 0);
3698 }
3699
3700
3701 void GuiView::disconnectDialog(string const & name)
3702 {
3703         if (!isValidName(name))
3704                 return;
3705         if (currentBufferView())
3706                 currentBufferView()->editInset(name, 0);
3707 }
3708
3709
3710 void GuiView::hideAll() const
3711 {
3712         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3713         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3714
3715         for(; it != end; ++it)
3716                 it->second->hideView();
3717 }
3718
3719
3720 void GuiView::updateDialogs()
3721 {
3722         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3723         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3724
3725         for(; it != end; ++it) {
3726                 Dialog * dialog = it->second.get();
3727                 if (dialog) {
3728                         if (dialog->needBufferOpen() && !documentBufferView())
3729                                 hideDialog(fromqstr(dialog->name()), 0);
3730                         else if (dialog->isVisibleView())
3731                                 dialog->checkStatus();
3732                 }
3733         }
3734         updateToolbars();
3735         updateLayoutList();
3736 }
3737
3738 Dialog * createDialog(GuiView & lv, string const & name);
3739
3740 // will be replaced by a proper factory...
3741 Dialog * createGuiAbout(GuiView & lv);
3742 Dialog * createGuiBibtex(GuiView & lv);
3743 Dialog * createGuiChanges(GuiView & lv);
3744 Dialog * createGuiCharacter(GuiView & lv);
3745 Dialog * createGuiCitation(GuiView & lv);
3746 Dialog * createGuiCompare(GuiView & lv);
3747 Dialog * createGuiCompareHistory(GuiView & lv);
3748 Dialog * createGuiDelimiter(GuiView & lv);
3749 Dialog * createGuiDocument(GuiView & lv);
3750 Dialog * createGuiErrorList(GuiView & lv);
3751 Dialog * createGuiExternal(GuiView & lv);
3752 Dialog * createGuiGraphics(GuiView & lv);
3753 Dialog * createGuiInclude(GuiView & lv);
3754 Dialog * createGuiIndex(GuiView & lv);
3755 Dialog * createGuiListings(GuiView & lv);
3756 Dialog * createGuiLog(GuiView & lv);
3757 Dialog * createGuiMathMatrix(GuiView & lv);
3758 Dialog * createGuiNote(GuiView & lv);
3759 Dialog * createGuiParagraph(GuiView & lv);
3760 Dialog * createGuiPhantom(GuiView & lv);
3761 Dialog * createGuiPreferences(GuiView & lv);
3762 Dialog * createGuiPrint(GuiView & lv);
3763 Dialog * createGuiPrintindex(GuiView & lv);
3764 Dialog * createGuiRef(GuiView & lv);
3765 Dialog * createGuiSearch(GuiView & lv);
3766 Dialog * createGuiSearchAdv(GuiView & lv);
3767 Dialog * createGuiSendTo(GuiView & lv);
3768 Dialog * createGuiShowFile(GuiView & lv);
3769 Dialog * createGuiSpellchecker(GuiView & lv);
3770 Dialog * createGuiSymbols(GuiView & lv);
3771 Dialog * createGuiTabularCreate(GuiView & lv);
3772 Dialog * createGuiTexInfo(GuiView & lv);
3773 Dialog * createGuiToc(GuiView & lv);
3774 Dialog * createGuiThesaurus(GuiView & lv);
3775 Dialog * createGuiViewSource(GuiView & lv);
3776 Dialog * createGuiWrap(GuiView & lv);
3777 Dialog * createGuiProgressView(GuiView & lv);
3778
3779
3780
3781 Dialog * GuiView::build(string const & name)
3782 {
3783         LASSERT(isValidName(name), return 0);
3784
3785         Dialog * dialog = createDialog(*this, name);
3786         if (dialog)
3787                 return dialog;
3788
3789         if (name == "aboutlyx")
3790                 return createGuiAbout(*this);
3791         if (name == "bibtex")
3792                 return createGuiBibtex(*this);
3793         if (name == "changes")
3794                 return createGuiChanges(*this);
3795         if (name == "character")
3796                 return createGuiCharacter(*this);
3797         if (name == "citation")
3798                 return createGuiCitation(*this);
3799         if (name == "compare")
3800                 return createGuiCompare(*this);
3801         if (name == "comparehistory")
3802                 return createGuiCompareHistory(*this);
3803         if (name == "document")
3804                 return createGuiDocument(*this);
3805         if (name == "errorlist")
3806                 return createGuiErrorList(*this);
3807         if (name == "external")
3808                 return createGuiExternal(*this);
3809         if (name == "file")
3810                 return createGuiShowFile(*this);
3811         if (name == "findreplace")
3812                 return createGuiSearch(*this);
3813         if (name == "findreplaceadv")
3814                 return createGuiSearchAdv(*this);
3815         if (name == "graphics")
3816                 return createGuiGraphics(*this);
3817         if (name == "include")
3818                 return createGuiInclude(*this);
3819         if (name == "index")
3820                 return createGuiIndex(*this);
3821         if (name == "index_print")
3822                 return createGuiPrintindex(*this);
3823         if (name == "listings")
3824                 return createGuiListings(*this);
3825         if (name == "log")
3826                 return createGuiLog(*this);
3827         if (name == "mathdelimiter")
3828                 return createGuiDelimiter(*this);
3829         if (name == "mathmatrix")
3830                 return createGuiMathMatrix(*this);
3831         if (name == "note")
3832                 return createGuiNote(*this);
3833         if (name == "paragraph")
3834                 return createGuiParagraph(*this);
3835         if (name == "phantom")
3836                 return createGuiPhantom(*this);
3837         if (name == "prefs")
3838                 return createGuiPreferences(*this);
3839         if (name == "print")
3840                 return createGuiPrint(*this);
3841         if (name == "ref")
3842                 return createGuiRef(*this);
3843         if (name == "sendto")
3844                 return createGuiSendTo(*this);
3845         if (name == "spellchecker")
3846                 return createGuiSpellchecker(*this);
3847         if (name == "symbols")
3848                 return createGuiSymbols(*this);
3849         if (name == "tabularcreate")
3850                 return createGuiTabularCreate(*this);
3851         if (name == "texinfo")
3852                 return createGuiTexInfo(*this);
3853         if (name == "thesaurus")
3854                 return createGuiThesaurus(*this);
3855         if (name == "toc")
3856                 return createGuiToc(*this);
3857         if (name == "view-source")
3858                 return createGuiViewSource(*this);
3859         if (name == "wrap")
3860                 return createGuiWrap(*this);
3861         if (name == "progress")
3862                 return createGuiProgressView(*this);
3863
3864         return 0;
3865 }
3866
3867
3868 } // namespace frontend
3869 } // namespace lyx
3870
3871 #include "moc_GuiView.cpp"