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         // Navigator needs more than a simple update in this case. It needs to be
1404         // rebuilt.
1405         updateDialog("toc", "");
1406 }
1407
1408
1409 void GuiView::updateDialog(string const & name, string const & data)
1410 {
1411         if (!isDialogVisible(name))
1412                 return;
1413
1414         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1415         if (it == d.dialogs_.end())
1416                 return;
1417
1418         Dialog * const dialog = it->second.get();
1419         if (dialog->isVisibleView())
1420                 dialog->initialiseParams(data);
1421 }
1422
1423
1424 BufferView * GuiView::documentBufferView()
1425 {
1426         return currentMainWorkArea()
1427                 ? &currentMainWorkArea()->bufferView()
1428                 : 0;
1429 }
1430
1431
1432 BufferView const * GuiView::documentBufferView() const
1433 {
1434         return currentMainWorkArea()
1435                 ? &currentMainWorkArea()->bufferView()
1436                 : 0;
1437 }
1438
1439
1440 BufferView * GuiView::currentBufferView()
1441 {
1442         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1443 }
1444
1445
1446 BufferView const * GuiView::currentBufferView() const
1447 {
1448         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1449 }
1450
1451
1452 #if (QT_VERSION >= 0x040400)
1453 docstring GuiView::GuiViewPrivate::saveAndDestroy(Buffer const * orig, Buffer * buffer, FileName const & fname)
1454 {
1455         bool failed = true;
1456         FileName const tmp_ret = FileName::tempName("lyxauto");
1457         if (!tmp_ret.empty()) {
1458                 if (buffer->writeFile(tmp_ret))
1459                         failed = !tmp_ret.moveTo(fname);
1460         }
1461         if (failed) {
1462                 // failed to write/rename tmp_ret so try writing direct
1463                 failed = buffer->writeFile(fname);
1464         }
1465         delete buffer;
1466         busyBuffers.remove(orig);
1467         return failed
1468                 ? _("Automatic save failed!")
1469                 : _("Automatic save done.");
1470 }
1471 #endif
1472
1473
1474 void GuiView::autoSave()
1475 {
1476         LYXERR(Debug::INFO, "Running autoSave()");
1477
1478         Buffer * buffer = documentBufferView()
1479                 ? &documentBufferView()->buffer() : 0;
1480         if (!buffer)
1481                 return;
1482
1483 #if (QT_VERSION >= 0x040400)
1484         GuiViewPrivate::busyBuffers.insert(buffer);
1485         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::saveAndDestroy, buffer, buffer->clone(),
1486                 buffer->getAutosaveFileName());
1487         d.autosave_watcher_.setFuture(f);
1488 #else
1489         buffer->autoSave();
1490 #endif
1491 }
1492
1493
1494 void GuiView::resetAutosaveTimers()
1495 {
1496         if (lyxrc.autosave)
1497                 d.autosave_timeout_.restart();
1498 }
1499
1500
1501 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1502 {
1503         bool enable = true;
1504         Buffer * buf = currentBufferView()
1505                 ? &currentBufferView()->buffer() : 0;
1506         Buffer * doc_buffer = documentBufferView()
1507                 ? &(documentBufferView()->buffer()) : 0;
1508
1509         // Check whether we need a buffer
1510         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
1511                 // no, exit directly
1512                 flag.message(from_utf8(N_("Command not allowed with"
1513                                         "out any document open")));
1514                 flag.setEnabled(false);
1515                 return true;
1516         }
1517
1518         if (cmd.origin() == FuncRequest::TOC) {
1519                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1520                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
1521                         flag.setEnabled(false);
1522                 return true;
1523         }
1524
1525         switch(cmd.action()) {
1526         case LFUN_BUFFER_IMPORT:
1527                 break;
1528
1529         case LFUN_MASTER_BUFFER_UPDATE:
1530         case LFUN_MASTER_BUFFER_VIEW:
1531                 enable = doc_buffer && doc_buffer->parent() != 0
1532                         && !d.processing_thread_watcher_.isRunning();
1533                 break;
1534
1535         case LFUN_BUFFER_UPDATE:
1536         case LFUN_BUFFER_VIEW: {
1537                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
1538                         enable = false;
1539                         break;
1540                 }
1541                 string format = to_utf8(cmd.argument());
1542                 if (cmd.argument().empty())
1543                         format = doc_buffer->getDefaultOutputFormat();
1544                 enable = doc_buffer->isExportableFormat(format);
1545                 break;
1546         }
1547
1548         case LFUN_BUFFER_RELOAD:
1549                 enable = doc_buffer && !doc_buffer->isUnnamed()
1550                         && doc_buffer->fileName().exists()
1551                         && (!doc_buffer->isClean()
1552                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1553                 break;
1554
1555         case LFUN_BUFFER_CHILD_OPEN:
1556                 enable = doc_buffer;
1557                 break;
1558
1559         case LFUN_BUFFER_WRITE:
1560                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1561                 break;
1562
1563         //FIXME: This LFUN should be moved to GuiApplication.
1564         case LFUN_BUFFER_WRITE_ALL: {
1565                 // We enable the command only if there are some modified buffers
1566                 Buffer * first = theBufferList().first();
1567                 enable = false;
1568                 if (!first)
1569                         break;
1570                 Buffer * b = first;
1571                 // We cannot use a for loop as the buffer list is a cycle.
1572                 do {
1573                         if (!b->isClean()) {
1574                                 enable = true;
1575                                 break;
1576                         }
1577                         b = theBufferList().next(b);
1578                 } while (b != first);
1579                 break;
1580         }
1581
1582         case LFUN_BUFFER_WRITE_AS:
1583                 enable = doc_buffer;
1584                 break;
1585
1586         case LFUN_BUFFER_CLOSE:
1587                 enable = doc_buffer;
1588                 break;
1589
1590         case LFUN_BUFFER_CLOSE_ALL:
1591                 enable = theBufferList().last() != theBufferList().first();
1592                 break;
1593
1594         case LFUN_SPLIT_VIEW:
1595                 if (cmd.getArg(0) == "vertical")
1596                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1597                                          d.splitter_->orientation() == Qt::Vertical);
1598                 else
1599                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1600                                          d.splitter_->orientation() == Qt::Horizontal);
1601                 break;
1602
1603         case LFUN_CLOSE_TAB_GROUP:
1604                 enable = d.currentTabWorkArea();
1605                 break;
1606
1607         case LFUN_TOOLBAR_TOGGLE: {
1608                 string const name = cmd.getArg(0);
1609                 if (GuiToolbar * t = toolbar(name))
1610                         flag.setOnOff(t->isVisible());
1611                 else {
1612                         enable = false;
1613                         docstring const msg =
1614                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
1615                         flag.message(msg);
1616                 }
1617                 break;
1618         }
1619
1620         case LFUN_DROP_LAYOUTS_CHOICE:
1621                 enable = buf;
1622                 break;
1623
1624         case LFUN_UI_TOGGLE:
1625                 flag.setOnOff(isFullScreen());
1626                 break;
1627
1628         case LFUN_DIALOG_DISCONNECT_INSET:
1629                 break;
1630
1631         case LFUN_DIALOG_HIDE:
1632                 // FIXME: should we check if the dialog is shown?
1633                 break;
1634
1635         case LFUN_DIALOG_TOGGLE:
1636                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1637                 // fall through to set "enable"
1638         case LFUN_DIALOG_SHOW: {
1639                 string const name = cmd.getArg(0);
1640                 if (!doc_buffer)
1641                         enable = name == "aboutlyx"
1642                                 || name == "file" //FIXME: should be removed.
1643                                 || name == "prefs"
1644                                 || name == "texinfo"
1645                                 || name == "progress"
1646                                 || name == "compare";
1647                 else if (name == "print")
1648                         enable = doc_buffer->isExportable("dvi")
1649                                 && lyxrc.print_command != "none";
1650                 else if (name == "character" || name == "symbols") {
1651                         if (!buf || buf->isReadonly())
1652                                 enable = false;
1653                         else {
1654                                 // FIXME we should consider passthru
1655                                 // paragraphs too.
1656                                 Inset const & in = currentBufferView()->cursor().inset();
1657                                 enable = !in.getLayout().isPassThru();
1658                         }
1659                 }
1660                 else if (name == "latexlog")
1661                         enable = FileName(doc_buffer->logName()).isReadableFile();
1662                 else if (name == "spellchecker")
1663                         enable = theSpellChecker() && !doc_buffer->isReadonly();
1664                 else if (name == "vclog")
1665                         enable = doc_buffer->lyxvc().inUse();
1666                 break;
1667         }
1668
1669         case LFUN_DIALOG_UPDATE: {
1670                 string const name = cmd.getArg(0);
1671                 if (!buf)
1672                         enable = name == "prefs";
1673                 break;
1674         }
1675
1676         case LFUN_COMMAND_EXECUTE:
1677         case LFUN_MESSAGE:
1678         case LFUN_MENU_OPEN:
1679                 // Nothing to check.
1680                 break;
1681
1682         case LFUN_COMPLETION_INLINE:
1683                 if (!d.current_work_area_
1684                         || !d.current_work_area_->completer().inlinePossible(
1685                         currentBufferView()->cursor()))
1686                         enable = false;
1687                 break;
1688
1689         case LFUN_COMPLETION_POPUP:
1690                 if (!d.current_work_area_
1691                         || !d.current_work_area_->completer().popupPossible(
1692                         currentBufferView()->cursor()))
1693                         enable = false;
1694                 break;
1695
1696         case LFUN_COMPLETION_COMPLETE:
1697                 if (!d.current_work_area_
1698                         || !d.current_work_area_->completer().inlinePossible(
1699                         currentBufferView()->cursor()))
1700                         enable = false;
1701                 break;
1702
1703         case LFUN_COMPLETION_ACCEPT:
1704                 if (!d.current_work_area_
1705                         || (!d.current_work_area_->completer().popupVisible()
1706                         && !d.current_work_area_->completer().inlineVisible()
1707                         && !d.current_work_area_->completer().completionAvailable()))
1708                         enable = false;
1709                 break;
1710
1711         case LFUN_COMPLETION_CANCEL:
1712                 if (!d.current_work_area_
1713                         || (!d.current_work_area_->completer().popupVisible()
1714                         && !d.current_work_area_->completer().inlineVisible()))
1715                         enable = false;
1716                 break;
1717
1718         case LFUN_BUFFER_ZOOM_OUT:
1719                 enable = doc_buffer && lyxrc.zoom > 10;
1720                 break;
1721
1722         case LFUN_BUFFER_ZOOM_IN:
1723                 enable = doc_buffer;
1724                 break;
1725
1726         case LFUN_BUFFER_NEXT:
1727         case LFUN_BUFFER_PREVIOUS:
1728                 // FIXME: should we check is there is an previous or next buffer?
1729                 break;
1730         case LFUN_BUFFER_SWITCH:
1731                 // toggle on the current buffer, but do not toggle off
1732                 // the other ones (is that a good idea?)
1733                 if (doc_buffer
1734                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
1735                         flag.setOnOff(true);
1736                 break;
1737
1738         case LFUN_VC_REGISTER:
1739                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
1740                 break;
1741         case LFUN_VC_CHECK_IN:
1742                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
1743                 break;
1744         case LFUN_VC_CHECK_OUT:
1745                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
1746                 break;
1747         case LFUN_VC_LOCKING_TOGGLE:
1748                 enable = doc_buffer && !doc_buffer->isReadonly()
1749                         && doc_buffer->lyxvc().lockingToggleEnabled();
1750                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
1751                 break;
1752         case LFUN_VC_REVERT:
1753                 enable = doc_buffer && doc_buffer->lyxvc().inUse() && !doc_buffer->isReadonly();
1754                 break;
1755         case LFUN_VC_UNDO_LAST:
1756                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
1757                 break;
1758         case LFUN_VC_REPO_UPDATE:
1759                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
1760                 break;
1761         case LFUN_VC_COMMAND: {
1762                 if (cmd.argument().empty())
1763                         enable = false;
1764                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
1765                         enable = false;
1766                 break;
1767         }
1768         case LFUN_VC_COMPARE:
1769                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
1770                 break;
1771
1772         case LFUN_SERVER_GOTO_FILE_ROW:
1773                 break;
1774         case LFUN_FORWARD_SEARCH:
1775                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty());
1776                 break;
1777
1778         default:
1779                 return false;
1780         }
1781
1782         if (!enable)
1783                 flag.setEnabled(false);
1784
1785         return true;
1786 }
1787
1788
1789 static FileName selectTemplateFile()
1790 {
1791         FileDialog dlg(qt_("Select template file"));
1792         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1793         dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1794
1795         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
1796                                  QStringList(qt_("LyX Documents (*.lyx)")));
1797
1798         if (result.first == FileDialog::Later)
1799                 return FileName();
1800         if (result.second.isEmpty())
1801                 return FileName();
1802         return FileName(fromqstr(result.second));
1803 }
1804
1805
1806 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
1807 {
1808         setBusy(true);
1809
1810         Buffer * newBuffer = 0;
1811         try {
1812                 newBuffer = checkAndLoadLyXFile(filename);
1813         } catch (ExceptionMessage const & e) {
1814                 setBusy(false);
1815                 throw(e);
1816         }
1817
1818         if (!newBuffer) {
1819                 message(_("Document not loaded."));
1820                 setBusy(false);
1821                 return 0;
1822         }
1823
1824         newBuffer->errors("Parse");
1825         setBuffer(newBuffer);
1826
1827         if (tolastfiles)
1828                 theSession().lastFiles().add(filename);
1829
1830         setBusy(false);
1831         return newBuffer;
1832 }
1833
1834
1835 void GuiView::openDocument(string const & fname)
1836 {
1837         string initpath = lyxrc.document_path;
1838
1839         if (documentBufferView()) {
1840                 string const trypath = documentBufferView()->buffer().filePath();
1841                 // If directory is writeable, use this as default.
1842                 if (FileName(trypath).isDirWritable())
1843                         initpath = trypath;
1844         }
1845
1846         string filename;
1847
1848         if (fname.empty()) {
1849                 FileDialog dlg(qt_("Select document to open"), LFUN_FILE_OPEN);
1850                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1851                 dlg.setButton2(qt_("Examples|#E#e"),
1852                                 toqstr(addPath(package().system_support().absFileName(), "examples")));
1853
1854                 QStringList filter(qt_("LyX Documents (*.lyx)"));
1855                 filter << qt_("LyX-1.3.x Documents (*.lyx13)")
1856                         << qt_("LyX-1.4.x Documents (*.lyx14)")
1857                         << qt_("LyX-1.5.x Documents (*.lyx15)")
1858                         << qt_("LyX-1.6.x Documents (*.lyx16)");
1859                 FileDialog::Result result =
1860                         dlg.open(toqstr(initpath), filter);
1861
1862                 if (result.first == FileDialog::Later)
1863                         return;
1864
1865                 filename = fromqstr(result.second);
1866
1867                 // check selected filename
1868                 if (filename.empty()) {
1869                         message(_("Canceled."));
1870                         return;
1871                 }
1872         } else
1873                 filename = fname;
1874
1875         // get absolute path of file and add ".lyx" to the filename if
1876         // necessary.
1877         FileName const fullname =
1878                         fileSearch(string(), filename, "lyx", support::may_not_exist);
1879         if (!fullname.empty())
1880                 filename = fullname.absFileName();
1881
1882         if (!fullname.onlyPath().isDirectory()) {
1883                 Alert::warning(_("Invalid filename"),
1884                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
1885                                 from_utf8(fullname.absFileName())));
1886                 return;
1887         }
1888
1889         // if the file doesn't exist and isn't already open (bug 6645),
1890         // let the user create one
1891         if (!fullname.exists() && !theBufferList().exists(fullname)) {
1892                 // the user specifically chose this name. Believe him.
1893                 Buffer * const b = newFile(filename, string(), true);
1894                 if (b)
1895                         setBuffer(b);
1896                 return;
1897         }
1898
1899         docstring const disp_fn = makeDisplayPath(filename);
1900         message(bformat(_("Opening document %1$s..."), disp_fn));
1901
1902         docstring str2;
1903         Buffer * buf = loadDocument(fullname);
1904         if (buf) {
1905                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1906                 if (buf->lyxvc().inUse())
1907                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
1908                                 " " + _("Version control detected.");
1909         } else {
1910                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1911         }
1912         message(str2);
1913 }
1914
1915 // FIXME: clean that
1916 static bool import(GuiView * lv, FileName const & filename,
1917         string const & format, ErrorList & errorList)
1918 {
1919         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
1920
1921         string loader_format;
1922         vector<string> loaders = theConverters().loaders();
1923         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
1924                 for (vector<string>::const_iterator it = loaders.begin();
1925                          it != loaders.end(); ++it) {
1926                         if (!theConverters().isReachable(format, *it))
1927                                 continue;
1928
1929                         string const tofile =
1930                                 support::changeExtension(filename.absFileName(),
1931                                 formats.extension(*it));
1932                         if (!theConverters().convert(0, filename, FileName(tofile),
1933                                 filename, format, *it, errorList))
1934                                 return false;
1935                         loader_format = *it;
1936                         break;
1937                 }
1938                 if (loader_format.empty()) {
1939                         frontend::Alert::error(_("Couldn't import file"),
1940                                          bformat(_("No information for importing the format %1$s."),
1941                                          formats.prettyName(format)));
1942                         return false;
1943                 }
1944         } else
1945                 loader_format = format;
1946
1947         if (loader_format == "lyx") {
1948                 Buffer * buf = lv->loadDocument(lyxfile);
1949                 if (!buf)
1950                         return false;
1951         } else {
1952                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
1953                 if (!b)
1954                         return false;
1955                 lv->setBuffer(b);
1956                 bool as_paragraphs = loader_format == "textparagraph";
1957                 string filename2 = (loader_format == format) ? filename.absFileName()
1958                         : support::changeExtension(filename.absFileName(),
1959                                           formats.extension(loader_format));
1960                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
1961                         as_paragraphs);
1962                 guiApp->setCurrentView(lv);
1963                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1964         }
1965
1966         return true;
1967 }
1968
1969
1970 void GuiView::importDocument(string const & argument)
1971 {
1972         string format;
1973         string filename = split(argument, format, ' ');
1974
1975         LYXERR(Debug::INFO, format << " file: " << filename);
1976
1977         // need user interaction
1978         if (filename.empty()) {
1979                 string initpath = lyxrc.document_path;
1980                 if (documentBufferView()) {
1981                         string const trypath = documentBufferView()->buffer().filePath();
1982                         // If directory is writeable, use this as default.
1983                         if (FileName(trypath).isDirWritable())
1984                                 initpath = trypath;
1985                 }
1986
1987                 docstring const text = bformat(_("Select %1$s file to import"),
1988                         formats.prettyName(format));
1989
1990                 FileDialog dlg(toqstr(text), LFUN_BUFFER_IMPORT);
1991                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1992                 dlg.setButton2(qt_("Examples|#E#e"),
1993                         toqstr(addPath(package().system_support().absFileName(), "examples")));
1994
1995                 docstring filter = formats.prettyName(format);
1996                 filter += " (*.";
1997                 // FIXME UNICODE
1998                 filter += from_utf8(formats.extension(format));
1999                 filter += ')';
2000
2001                 FileDialog::Result result =
2002                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2003
2004                 if (result.first == FileDialog::Later)
2005                         return;
2006
2007                 filename = fromqstr(result.second);
2008
2009                 // check selected filename
2010                 if (filename.empty())
2011                         message(_("Canceled."));
2012         }
2013
2014         if (filename.empty())
2015                 return;
2016
2017         // get absolute path of file
2018         FileName const fullname(support::makeAbsPath(filename));
2019
2020         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2021
2022         // Check if the document already is open
2023         Buffer * buf = theBufferList().getBuffer(lyxfile);
2024         if (buf) {
2025                 setBuffer(buf);
2026                 if (!closeBuffer()) {
2027                         message(_("Canceled."));
2028                         return;
2029                 }
2030         }
2031
2032         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
2033
2034         // if the file exists already, and we didn't do
2035         // -i lyx thefile.lyx, warn
2036         if (lyxfile.exists() && fullname != lyxfile) {
2037
2038                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2039                         "Do you want to overwrite that document?"), displaypath);
2040                 int const ret = Alert::prompt(_("Overwrite document?"),
2041                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
2042
2043                 if (ret == 1) {
2044                         message(_("Canceled."));
2045                         return;
2046                 }
2047         }
2048
2049         message(bformat(_("Importing %1$s..."), displaypath));
2050         ErrorList errorList;
2051         if (import(this, fullname, format, errorList))
2052                 message(_("imported."));
2053         else
2054                 message(_("file not imported!"));
2055
2056         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2057 }
2058
2059
2060 void GuiView::newDocument(string const & filename, bool from_template)
2061 {
2062         FileName initpath(lyxrc.document_path);
2063         if (documentBufferView()) {
2064                 FileName const trypath(documentBufferView()->buffer().filePath());
2065                 // If directory is writeable, use this as default.
2066                 if (trypath.isDirWritable())
2067                         initpath = trypath;
2068         }
2069
2070         string templatefile;
2071         if (from_template) {
2072                 templatefile = selectTemplateFile().absFileName();
2073                 if (templatefile.empty())
2074                         return;
2075         }
2076
2077         Buffer * b;
2078         if (filename.empty())
2079                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
2080         else
2081                 b = newFile(filename, templatefile, true);
2082
2083         if (b)
2084                 setBuffer(b);
2085
2086         // If no new document could be created, it is unsure
2087         // whether there is a valid BufferView.
2088         if (currentBufferView())
2089                 // Ensure the cursor is correctly positioned on screen.
2090                 currentBufferView()->showCursor();
2091 }
2092
2093
2094 void GuiView::insertLyXFile(docstring const & fname)
2095 {
2096         BufferView * bv = documentBufferView();
2097         if (!bv)
2098                 return;
2099
2100         // FIXME UNICODE
2101         FileName filename(to_utf8(fname));
2102         if (filename.empty()) {
2103                 // Launch a file browser
2104                 // FIXME UNICODE
2105                 string initpath = lyxrc.document_path;
2106                 string const trypath = bv->buffer().filePath();
2107                 // If directory is writeable, use this as default.
2108                 if (FileName(trypath).isDirWritable())
2109                         initpath = trypath;
2110
2111                 // FIXME UNICODE
2112                 FileDialog dlg(qt_("Select LyX document to insert"), LFUN_FILE_INSERT);
2113                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2114                 dlg.setButton2(qt_("Examples|#E#e"),
2115                         toqstr(addPath(package().system_support().absFileName(),
2116                         "examples")));
2117
2118                 FileDialog::Result result = dlg.open(toqstr(initpath),
2119                                          QStringList(qt_("LyX Documents (*.lyx)")));
2120
2121                 if (result.first == FileDialog::Later)
2122                         return;
2123
2124                 // FIXME UNICODE
2125                 filename.set(fromqstr(result.second));
2126
2127                 // check selected filename
2128                 if (filename.empty()) {
2129                         // emit message signal.
2130                         message(_("Canceled."));
2131                         return;
2132                 }
2133         }
2134
2135         bv->insertLyXFile(filename);
2136         bv->buffer().errors("Parse");
2137 }
2138
2139
2140 void GuiView::insertPlaintextFile(docstring const & fname,
2141         bool asParagraph)
2142 {
2143         BufferView * bv = documentBufferView();
2144         if (!bv)
2145                 return;
2146
2147         if (!fname.empty() && !FileName::isAbsolute(to_utf8(fname))) {
2148                 message(_("Absolute filename expected."));
2149                 return;
2150         }
2151
2152         // FIXME UNICODE
2153         FileName filename(to_utf8(fname));
2154
2155         if (!filename.empty()) {
2156                 bv->insertPlaintextFile(filename, asParagraph);
2157                 return;
2158         }
2159
2160         FileDialog dlg(qt_("Select file to insert"), (asParagraph ?
2161                 LFUN_FILE_INSERT_PLAINTEXT_PARA : LFUN_FILE_INSERT_PLAINTEXT));
2162
2163         FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
2164                 QStringList(qt_("All Files (*)")));
2165
2166         if (result.first == FileDialog::Later)
2167                 return;
2168
2169         // FIXME UNICODE
2170         filename.set(fromqstr(result.second));
2171
2172         // check selected filename
2173         if (filename.empty()) {
2174                 // emit message signal.
2175                 message(_("Canceled."));
2176                 return;
2177         }
2178
2179         bv->insertPlaintextFile(filename, asParagraph);
2180 }
2181
2182
2183 bool GuiView::renameBuffer(Buffer & b, docstring const & newname)
2184 {
2185         FileName fname = b.fileName();
2186         FileName const oldname = fname;
2187
2188         if (!newname.empty()) {
2189                 // FIXME UNICODE
2190                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFileName());
2191         } else {
2192                 // Switch to this Buffer.
2193                 setBuffer(&b);
2194
2195                 // No argument? Ask user through dialog.
2196                 // FIXME UNICODE
2197                 FileDialog dlg(qt_("Choose a filename to save document as"),
2198                                    LFUN_BUFFER_WRITE_AS);
2199                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2200                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2201
2202                 if (!isLyXFileName(fname.absFileName()))
2203                         fname.changeExtension(".lyx");
2204
2205                 FileDialog::Result result =
2206                         dlg.save(toqstr(fname.onlyPath().absFileName()),
2207                                    QStringList(qt_("LyX Documents (*.lyx)")),
2208                                          toqstr(fname.onlyFileName()));
2209
2210                 if (result.first == FileDialog::Later)
2211                         return false;
2212
2213                 fname.set(fromqstr(result.second));
2214
2215                 if (fname.empty())
2216                         return false;
2217
2218                 if (!isLyXFileName(fname.absFileName()))
2219                         fname.changeExtension(".lyx");
2220         }
2221
2222         // fname is now the new Buffer location.
2223         if (FileName(fname).exists()) {
2224                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2225                 docstring text = bformat(_("The document %1$s already "
2226                                            "exists.\n\nDo you want to "
2227                                            "overwrite that document?"),
2228                                          file);
2229                 int const ret = Alert::prompt(_("Overwrite document?"),
2230                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2231                 switch (ret) {
2232                 case 0: break;
2233                 case 1: return renameBuffer(b, docstring());
2234                 case 2: return false;
2235                 }
2236         }
2237
2238         FileName oldauto = b.getAutosaveFileName();
2239
2240         // Ok, change the name of the buffer
2241         b.setFileName(fname.absFileName());
2242         b.markDirty();
2243         bool unnamed = b.isUnnamed();
2244         b.setUnnamed(false);
2245         b.saveCheckSum();
2246
2247         // bring the autosave file with us, just in case.
2248         b.moveAutosaveFile(oldauto);
2249
2250         if (!saveBuffer(b)) {
2251                 oldauto = b.getAutosaveFileName();
2252                 b.setFileName(oldname.absFileName());
2253                 b.setUnnamed(unnamed);
2254                 b.saveCheckSum();
2255                 b.moveAutosaveFile(oldauto);
2256                 return false;
2257         }
2258
2259         // validate version control data and
2260         // correct buffer title
2261         b.lyxvc().file_found_hook(b.fileName());
2262         b.updateTitles();
2263
2264         // the file has now been saved to the new location.
2265         // we need to check that the locations of child buffers
2266         // are still valid.
2267         b.checkChildBuffers();
2268
2269         return true;
2270 }
2271
2272
2273 bool GuiView::saveBuffer(Buffer & b)
2274 {
2275         if (workArea(b) && workArea(b)->inDialogMode())
2276                 return true;
2277
2278         if (b.isUnnamed())
2279                 return renameBuffer(b, docstring());
2280
2281         if (b.save()) {
2282                 theSession().lastFiles().add(b.fileName());
2283                 return true;
2284         }
2285
2286         // Switch to this Buffer.
2287         setBuffer(&b);
2288
2289         // FIXME: we don't tell the user *WHY* the save failed !!
2290         docstring const file = makeDisplayPath(b.absFileName(), 30);
2291         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2292                                    "Do you want to rename the document and "
2293                                    "try again?"), file);
2294         int const ret = Alert::prompt(_("Rename and save?"),
2295                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2296         switch (ret) {
2297         case 0:
2298                 if (!renameBuffer(b, docstring()))
2299                         return false;
2300                 break;
2301         case 1:
2302                 break;
2303         case 2:
2304                 return false;
2305         }
2306
2307         return saveBuffer(b);
2308 }
2309
2310
2311 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2312 {
2313         return closeWorkArea(wa, false);
2314 }
2315
2316
2317 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2318 {
2319         Buffer & buf = wa->bufferView().buffer();
2320         return closeWorkArea(wa, !buf.parent());
2321 }
2322
2323
2324 bool GuiView::closeBuffer()
2325 {
2326         GuiWorkArea * wa = currentMainWorkArea();
2327         setCurrentWorkArea(wa);
2328         Buffer & buf = wa->bufferView().buffer();
2329         return wa && closeWorkArea(wa, !buf.parent());
2330 }
2331
2332
2333 void GuiView::writeSession() const {
2334         GuiWorkArea const * active_wa = currentMainWorkArea();
2335         for (int i = 0; i < d.splitter_->count(); ++i) {
2336                 TabWorkArea * twa = d.tabWorkArea(i);
2337                 for (int j = 0; j < twa->count(); ++j) {
2338                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
2339                         Buffer & buf = wa->bufferView().buffer();
2340                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2341                 }
2342         }
2343 }
2344
2345
2346 bool GuiView::closeBufferAll()
2347 {
2348         // Close the workareas in all other views
2349         QList<int> const ids = guiApp->viewIds();
2350         for (int i = 0; i != ids.size(); ++i) {
2351                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2352                         return false;
2353         }
2354
2355         // Close our own workareas
2356         if (!closeWorkAreaAll())
2357                 return false;
2358
2359         // Now close the hidden buffers. We prevent hidden buffers from being
2360         // dirty, so we can just close them.
2361         theBufferList().closeAll();
2362         return true;
2363 }
2364
2365
2366 bool GuiView::closeWorkAreaAll()
2367 {
2368         setCurrentWorkArea(currentMainWorkArea());
2369
2370         // We might be in a situation that there is still a tabWorkArea, but
2371         // there are no tabs anymore. This can happen when we get here after a
2372         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2373         // many TabWorkArea's have no documents anymore.
2374         int empty_twa = 0;
2375
2376         // We have to call count() each time, because it can happen that
2377         // more than one splitter will disappear in one iteration (bug 5998).
2378         for (; d.splitter_->count() > empty_twa; ) {
2379                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2380
2381                 if (twa->count() == 0)
2382                         ++empty_twa;
2383                 else {
2384                         setCurrentWorkArea(twa->currentWorkArea());
2385                         if (!closeTabWorkArea(twa))
2386                                 return false;
2387                 }
2388         }
2389         return true;
2390 }
2391
2392
2393 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2394 {
2395         if (!wa)
2396                 return false;
2397
2398         Buffer & buf = wa->bufferView().buffer();
2399
2400         if (close_buffer && GuiViewPrivate::busyBuffers.contains(&buf)) {
2401                 Alert::warning(_("Close document "), _("Document could not be closed because it is processed by LyX."));
2402                 return false;
2403         }
2404
2405         if (close_buffer)
2406                 return closeBuffer(buf);
2407         else {
2408                 if (!inMultiTabs(wa))
2409                         if (!saveBufferIfNeeded(buf, true))
2410                                 return false;
2411                 removeWorkArea(wa);
2412                 return true;
2413         }
2414 }
2415
2416
2417 bool GuiView::closeBuffer(Buffer & buf)
2418 {
2419         // If we are in a close_event all children will be closed in some time,
2420         // so no need to do it here. This will ensure that the children end up
2421         // in the session file in the correct order. If we close the master
2422         // buffer, we can close or release the child buffers here too.
2423         if (!closing_) {
2424                 ListOfBuffers clist = buf.getChildren();
2425                 ListOfBuffers::const_iterator it = clist.begin();
2426                 ListOfBuffers::const_iterator const bend = clist.end();
2427                 for (; it != bend; ++it) {
2428                         // If a child is dirty, do not close
2429                         // without user intervention
2430                         //FIXME: should we look in other tabworkareas?
2431                         Buffer * child_buf = *it;
2432                         GuiWorkArea * child_wa = workArea(*child_buf);
2433                         if (child_wa) {
2434                                 if (!closeWorkArea(child_wa, true))
2435                                         return false;
2436                         } else
2437                                 theBufferList().releaseChild(&buf, child_buf);
2438                 }
2439         }
2440         // goto bookmark to update bookmark pit.
2441         //FIXME: we should update only the bookmarks related to this buffer!
2442         LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2443         for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2444                 guiApp->gotoBookmark(i+1, false, false);
2445
2446         if (saveBufferIfNeeded(buf, false)) {
2447                 buf.removeAutosaveFile();
2448                 theBufferList().release(&buf);
2449                 return true;
2450         }
2451         return false;
2452 }
2453
2454
2455 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2456 {
2457         while (twa == d.currentTabWorkArea()) {
2458                 twa->setCurrentIndex(twa->count()-1);
2459
2460                 GuiWorkArea * wa = twa->currentWorkArea();
2461                 Buffer & b = wa->bufferView().buffer();
2462
2463                 // We only want to close the buffer if the same buffer is not visible
2464                 // in another view, and if this is not a child and if we are closing
2465                 // a view (not a tabgroup).
2466                 bool const close_buffer =
2467                         !inMultiViews(wa) && !b.parent() && closing_;
2468
2469                 if (!closeWorkArea(wa, close_buffer))
2470                         return false;
2471         }
2472         return true;
2473 }
2474
2475
2476 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2477 {
2478         if (buf.isClean() || buf.paragraphs().empty())
2479                 return true;
2480
2481         // Switch to this Buffer.
2482         setBuffer(&buf);
2483
2484         docstring file;
2485         // FIXME: Unicode?
2486         if (buf.isUnnamed())
2487                 file = from_utf8(buf.fileName().onlyFileName());
2488         else
2489                 file = buf.fileName().displayName(30);
2490
2491         // Bring this window to top before asking questions.
2492         raise();
2493         activateWindow();
2494
2495         int ret;
2496         if (hiding && buf.isUnnamed()) {
2497                 docstring const text = bformat(_("The document %1$s has not been "
2498                                                  "saved yet.\n\nDo you want to save "
2499                                                  "the document?"), file);
2500                 ret = Alert::prompt(_("Save new document?"),
2501                         text, 0, 1, _("&Save"), _("&Cancel"));
2502                 if (ret == 1)
2503                         ++ret;
2504         } else {
2505                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2506                         "\n\nDo you want to save the document or discard the changes?"), file);
2507                 ret = Alert::prompt(_("Save changed document?"),
2508                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2509         }
2510
2511         switch (ret) {
2512         case 0:
2513                 if (!saveBuffer(buf))
2514                         return false;
2515                 break;
2516         case 1:
2517                 // if we crash after this we could
2518                 // have no autosave file but I guess
2519                 // this is really improbable (Jug)
2520                 // Sometime improbable things happen, bug 6857 (ps)
2521                 // buf.removeAutosaveFile();
2522                 if (hiding)
2523                         // revert all changes
2524                         reloadBuffer(buf);
2525                 buf.markClean();
2526                 break;
2527         case 2:
2528                 return false;
2529         }
2530         return true;
2531 }
2532
2533
2534 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2535 {
2536         Buffer & buf = wa->bufferView().buffer();
2537
2538         for (int i = 0; i != d.splitter_->count(); ++i) {
2539                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2540                 if (wa_ && wa_ != wa)
2541                         return true;
2542         }
2543         return inMultiViews(wa);
2544 }
2545
2546
2547 bool GuiView::inMultiViews(GuiWorkArea * wa)
2548 {
2549         QList<int> const ids = guiApp->viewIds();
2550         Buffer & buf = wa->bufferView().buffer();
2551
2552         int found_twa = 0;
2553         for (int i = 0; i != ids.size() && found_twa <= 1; ++i) {
2554                 if (id_ == ids[i])
2555                         continue;
2556
2557                 if (guiApp->view(ids[i]).workArea(buf))
2558                         return true;
2559         }
2560         return false;
2561 }
2562
2563
2564 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np)
2565 {
2566         Buffer * const curbuf = documentBufferView()
2567                 ? &documentBufferView()->buffer() : 0;
2568         Buffer * nextbuf = curbuf;
2569         while (true) {
2570                 if (np == NEXTBUFFER)
2571                         nextbuf = theBufferList().next(nextbuf);
2572                 else
2573                         nextbuf = theBufferList().previous(nextbuf);
2574                 if (nextbuf == curbuf)
2575                         break;
2576                 if (nextbuf == 0) {
2577                         nextbuf = curbuf;
2578                         break;
2579                 }
2580                 if (workArea(*nextbuf))
2581                         break;
2582         }
2583         setBuffer(nextbuf);
2584 }
2585
2586
2587 /// make sure the document is saved
2588 static bool ensureBufferClean(Buffer * buffer)
2589 {
2590         LASSERT(buffer, return false);
2591         if (buffer->isClean() && !buffer->isUnnamed())
2592                 return true;
2593
2594         docstring const file = buffer->fileName().displayName(30);
2595         docstring title;
2596         docstring text;
2597         if (!buffer->isUnnamed()) {
2598                 text = bformat(_("The document %1$s has unsaved "
2599                                                  "changes.\n\nDo you want to save "
2600                                                  "the document?"), file);
2601                 title = _("Save changed document?");
2602
2603         } else {
2604                 text = bformat(_("The document %1$s has not been "
2605                                                  "saved yet.\n\nDo you want to save "
2606                                                  "the document?"), file);
2607                 title = _("Save new document?");
2608         }
2609         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
2610
2611         if (ret == 0)
2612                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
2613
2614         return buffer->isClean() && !buffer->isUnnamed();
2615 }
2616
2617
2618 bool GuiView::reloadBuffer(Buffer & buf)
2619 {
2620         Buffer::ReadStatus status = buf.reload();
2621         return status == Buffer::ReadSuccess;
2622 }
2623
2624
2625 void GuiView::checkExternallyModifiedBuffers()
2626 {
2627         BufferList::iterator bit = theBufferList().begin();
2628         BufferList::iterator const bend = theBufferList().end();
2629         for (; bit != bend; ++bit) {
2630                 Buffer * buf = *bit;
2631                 if (buf->fileName().exists()
2632                         && buf->isExternallyModified(Buffer::checksum_method)) {
2633                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
2634                                         " Reload now? Any local changes will be lost."),
2635                                         from_utf8(buf->absFileName()));
2636                         int const ret = Alert::prompt(_("Reload externally changed document?"),
2637                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
2638                         if (!ret)
2639                                 reloadBuffer(*buf);
2640                 }
2641         }
2642 }
2643
2644
2645 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
2646 {
2647         Buffer * buffer = documentBufferView()
2648                 ? &(documentBufferView()->buffer()) : 0;
2649
2650         switch (cmd.action()) {
2651         case LFUN_VC_REGISTER:
2652                 if (!buffer || !ensureBufferClean(buffer))
2653                         break;
2654                 if (!buffer->lyxvc().inUse()) {
2655                         if (buffer->lyxvc().registrer()) {
2656                                 reloadBuffer(*buffer);
2657                                 dr.suppressMessageUpdate();
2658                         }
2659                 }
2660                 break;
2661
2662         case LFUN_VC_CHECK_IN:
2663                 if (!buffer || !ensureBufferClean(buffer))
2664                         break;
2665                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
2666                         dr.setMessage(buffer->lyxvc().checkIn());
2667                         if (!dr.message().empty())
2668                                 reloadBuffer(*buffer);
2669                 }
2670                 break;
2671
2672         case LFUN_VC_CHECK_OUT:
2673                 if (!buffer || !ensureBufferClean(buffer))
2674                         break;
2675                 if (buffer->lyxvc().inUse()) {
2676                         dr.setMessage(buffer->lyxvc().checkOut());
2677                         reloadBuffer(*buffer);
2678                 }
2679                 break;
2680
2681         case LFUN_VC_LOCKING_TOGGLE:
2682                 LASSERT(buffer, return);
2683                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
2684                         break;
2685                 if (buffer->lyxvc().inUse()) {
2686                         string res = buffer->lyxvc().lockingToggle();
2687                         if (res.empty()) {
2688                                 frontend::Alert::error(_("Revision control error."),
2689                                 _("Error when setting the locking property."));
2690                         } else {
2691                                 dr.setMessage(res);
2692                                 reloadBuffer(*buffer);
2693                         }
2694                 }
2695                 break;
2696
2697         case LFUN_VC_REVERT:
2698                 LASSERT(buffer, return);
2699                 buffer->lyxvc().revert();
2700                 reloadBuffer(*buffer);
2701                 dr.suppressMessageUpdate();
2702                 break;
2703
2704         case LFUN_VC_UNDO_LAST:
2705                 LASSERT(buffer, return);
2706                 buffer->lyxvc().undoLast();
2707                 reloadBuffer(*buffer);
2708                 dr.suppressMessageUpdate();
2709                 break;
2710
2711         case LFUN_VC_REPO_UPDATE:
2712                 LASSERT(buffer, return);
2713                 if (ensureBufferClean(buffer)) {
2714                         dr.setMessage(buffer->lyxvc().repoUpdate());
2715                         checkExternallyModifiedBuffers();
2716                 }
2717                 break;
2718
2719         case LFUN_VC_COMMAND: {
2720                 string flag = cmd.getArg(0);
2721                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
2722                         break;
2723                 docstring message;
2724                 if (contains(flag, 'M')) {
2725                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
2726                                 break;
2727                 }
2728                 string path = cmd.getArg(1);
2729                 if (contains(path, "$$p") && buffer)
2730                         path = subst(path, "$$p", buffer->filePath());
2731                 LYXERR(Debug::LYXVC, "Directory: " << path);
2732                 FileName pp(path);
2733                 if (!pp.isReadableDirectory()) {
2734                         lyxerr << _("Directory is not accessible.") << endl;
2735                         break;
2736                 }
2737                 support::PathChanger p(pp);
2738
2739                 string command = cmd.getArg(2);
2740                 if (command.empty())
2741                         break;
2742                 if (buffer) {
2743                         command = subst(command, "$$i", buffer->absFileName());
2744                         command = subst(command, "$$p", buffer->filePath());
2745                 }
2746                 command = subst(command, "$$m", to_utf8(message));
2747                 LYXERR(Debug::LYXVC, "Command: " << command);
2748                 Systemcall one;
2749                 one.startscript(Systemcall::Wait, command);
2750
2751                 if (!buffer)
2752                         break;
2753                 if (contains(flag, 'I'))
2754                         buffer->markDirty();
2755                 if (contains(flag, 'R'))
2756                         reloadBuffer(*buffer);
2757
2758                 break;
2759                 }
2760
2761         case LFUN_VC_COMPARE: {
2762
2763                 if (cmd.argument().empty()) {
2764                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
2765                         break;
2766                 }
2767
2768                 string rev1 = cmd.getArg(0);
2769                 string f1, f2;
2770
2771                 // f1
2772                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
2773                         break;
2774
2775                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
2776                         f2 = buffer->absFileName();
2777                 } else {
2778                         string rev2 = cmd.getArg(1);
2779                         if (rev2.empty())
2780                                 break;
2781                         // f2
2782                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
2783                                 break;
2784                 }
2785
2786                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
2787                                         f1 << "\n"  << f2 << "\n" );
2788                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
2789                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
2790                 break;
2791         }
2792
2793         default:
2794                 break;
2795         }
2796 }
2797
2798
2799 void GuiView::openChildDocument(string const & fname)
2800 {
2801         LASSERT(documentBufferView(), return);
2802         Buffer & buffer = documentBufferView()->buffer();
2803         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
2804         documentBufferView()->saveBookmark(false);
2805         Buffer * child = 0;
2806         if (theBufferList().exists(filename)) {
2807                 child = theBufferList().getBuffer(filename);
2808                 setBuffer(child);
2809         } else {
2810                 message(bformat(_("Opening child document %1$s..."),
2811                         makeDisplayPath(filename.absFileName())));
2812                 child = loadDocument(filename, false);
2813         }
2814         // Set the parent name of the child document.
2815         // This makes insertion of citations and references in the child work,
2816         // when the target is in the parent or another child document.
2817         if (child)
2818                 child->setParent(&buffer);
2819 }
2820
2821
2822 bool GuiView::goToFileRow(string const & argument)
2823 {
2824         string file_name;
2825         int row;
2826         size_t i = argument.find_last_of(' ');
2827         if (i != string::npos) {
2828                 file_name = os::internal_path(trim(argument.substr(0, i)));
2829                 istringstream is(argument.substr(i + 1));
2830                 is >> row;
2831                 if (is.fail())
2832                         i = string::npos;
2833         }
2834         if (i == string::npos) {
2835                 LYXERR0("Wrong argument: " << argument);
2836                 return false;
2837         }
2838         Buffer * buf = 0;
2839         string const abstmp = package().temp_dir().absFileName();
2840         string const realtmp = package().temp_dir().realPath();
2841         // We have to use os::path_prefix_is() here, instead of
2842         // simply prefixIs(), because the file name comes from
2843         // an external application and may need case adjustment.
2844         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
2845                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
2846                 // Needed by inverse dvi search. If it is a file
2847                 // in tmpdir, call the apropriated function.
2848                 // If tmpdir is a symlink, we may have the real
2849                 // path passed back, so we correct for that.
2850                 if (!prefixIs(file_name, abstmp))
2851                         file_name = subst(file_name, realtmp, abstmp);
2852                 buf = theBufferList().getBufferFromTmp(file_name);
2853         } else {
2854                 // Must replace extension of the file to be .lyx
2855                 // and get full path
2856                 FileName const s = fileSearch(string(),
2857                                                   support::changeExtension(file_name, ".lyx"), "lyx");
2858                 // Either change buffer or load the file
2859                 if (theBufferList().exists(s))
2860                         buf = theBufferList().getBuffer(s);
2861                 else if (s.exists()) {
2862                         buf = loadDocument(s);
2863                         if (!buf)
2864                                 return false;
2865                 } else {
2866                         message(bformat(
2867                                         _("File does not exist: %1$s"),
2868                                         makeDisplayPath(file_name)));
2869                         return false;
2870                 }
2871         }
2872         setBuffer(buf);
2873         documentBufferView()->setCursorFromRow(row);
2874         return true;
2875 }
2876
2877
2878 #if (QT_VERSION >= 0x040400)
2879 template<class T>
2880 docstring GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format, string const & msg)
2881 {
2882         bool const update_unincluded =
2883                                 buffer->params().maintain_unincluded_children
2884                                 && !buffer->params().getIncludedChildren().empty();
2885         bool const success = func(format, update_unincluded);
2886         delete buffer;
2887         busyBuffers.remove(orig);
2888         return success
2889                 ? bformat(_("Successful " + msg + " to format: %1$s"), from_utf8(format))
2890                 : bformat(_("Error " + msg + " format: %1$s"), from_utf8(format));
2891 }
2892
2893 docstring GuiView::GuiViewPrivate::compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2894 {
2895         bool (Buffer::* mem_func)(std::string const &, bool, bool) const = &Buffer::doExport;
2896         return runAndDestroy(bind(mem_func, buffer, _1, true, _2), orig, buffer, format, "export");
2897 }
2898
2899 docstring GuiView::GuiViewPrivate::exportAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2900 {
2901         bool (Buffer::* mem_func)(std::string const &, bool, bool) const = &Buffer::doExport;
2902         return runAndDestroy(bind(mem_func, buffer, _1, false, _2), orig, buffer, format, "export");
2903
2904 }
2905
2906 docstring GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2907 {
2908         bool(Buffer::* mem_func)(std::string const &, bool) const = &Buffer::preview;
2909         return runAndDestroy(bind(mem_func, buffer, _1, _2), orig, buffer, format, "preview");
2910 }
2911 #endif
2912
2913
2914 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
2915                            string const & argument,
2916                            Buffer const * used_buffer,
2917                            docstring const & msg,
2918                            docstring (*asyncFunc)(Buffer const *, Buffer *, string const &),
2919                            bool (Buffer::*syncFunc)(string const &, bool, bool) const,
2920                            bool (Buffer::*previewFunc)(string const &, bool) const)
2921 {
2922         if (!used_buffer) {
2923                 return false;
2924         }
2925         gv_->processingThreadStarted();
2926         string format = argument;
2927         if (format.empty()) {
2928                 format = used_buffer->getDefaultOutputFormat();
2929         }
2930 #if EXPORT_in_THREAD && (QT_VERSION >= 0x040400)
2931         if (!msg.empty()) {
2932                 progress_->clearMessages();
2933                 gv_->message(msg);
2934         }
2935         GuiViewPrivate::busyBuffers.insert(used_buffer);
2936         QFuture<docstring> f = QtConcurrent::run(
2937                                 asyncFunc,
2938                                 used_buffer,
2939                                 used_buffer->clone(),
2940                                 format);
2941         setPreviewFuture(f);
2942         last_export_format = used_buffer->bufferFormat();
2943         (void) syncFunc;
2944         (void) previewFunc;
2945         // We are asynchronous, so we don't know here anything about the success
2946         return true;
2947 #else
2948         bool const update_unincluded =
2949                 used_buffer->params().maintain_unincluded_children &&
2950                 !used_buffer->params().getIncludedChildren().empty();
2951         if (syncFunc) {
2952                 return (used_buffer->*syncFunc)(format, true, update_unincluded);
2953         } else if (previewFunc) {
2954                 return (used_buffer->*previewFunc)(format, update_unincluded);
2955         }
2956         (void) asyncFunc;
2957         return false;
2958 #endif
2959 }
2960
2961 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
2962 {
2963         BufferView * bv = currentBufferView();
2964         // By default we won't need any update.
2965         dr.screenUpdate(Update::None);
2966         // assume cmd will be dispatched
2967         dr.dispatched(true);
2968
2969         Buffer * doc_buffer = documentBufferView()
2970                 ? &(documentBufferView()->buffer()) : 0;
2971
2972         if (cmd.origin() == FuncRequest::TOC) {
2973                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
2974                 // FIXME: do we need to pass a DispatchResult object here?
2975                 toc->doDispatch(bv->cursor(), cmd);
2976                 return;
2977         }
2978
2979         string const argument = to_utf8(cmd.argument());
2980
2981         switch(cmd.action()) {
2982                 case LFUN_BUFFER_CHILD_OPEN:
2983                         openChildDocument(to_utf8(cmd.argument()));
2984                         break;
2985
2986                 case LFUN_BUFFER_IMPORT:
2987                         importDocument(to_utf8(cmd.argument()));
2988                         break;
2989
2990                 case LFUN_BUFFER_EXPORT: {
2991                         if (!doc_buffer)
2992                                 break;
2993                         // GCC only sees strfwd.h when building merged
2994                         if (::lyx::operator==(cmd.argument(), "custom")) {
2995                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
2996                                 break;
2997                         }
2998 #if 0
2999                         // TODO Remove if we could export asynchronous
3000                         if (!doc_buffer->doExport(argument, false)) {
3001                                 dr.setError(true);
3002                                 dr.setMessage(bformat(_("Error exporting to format: %1$s."),
3003                                         cmd.argument()));
3004                         }
3005 #else
3006                         /* TODO/Review: Is it a problem to also export the children?
3007                                         See the update_unincluded flag */
3008                         d.asyncBufferProcessing(argument,
3009                                                 doc_buffer,
3010                                                 _("Exporting ..."),
3011                                                 &GuiViewPrivate::exportAndDestroy,
3012                                                 &Buffer::doExport,
3013                                                 0);
3014                         // TODO Inform user about success
3015 #endif
3016                         break;
3017                 }
3018
3019                 case LFUN_BUFFER_UPDATE: {
3020                         d.asyncBufferProcessing(argument,
3021                                                 doc_buffer,
3022                                                 _("Exporting ..."),
3023                                                 &GuiViewPrivate::compileAndDestroy,
3024                                                 &Buffer::doExport,
3025                                                 0);
3026                         break;
3027                 }
3028                 case LFUN_BUFFER_VIEW: {
3029                         d.asyncBufferProcessing(argument,
3030                                                 doc_buffer,
3031                                                 _("Previewing ..."),
3032                                                 &GuiViewPrivate::previewAndDestroy,
3033                                                 0,
3034                                                 &Buffer::preview);
3035                         break;
3036                 }
3037                 case LFUN_MASTER_BUFFER_UPDATE: {
3038                         d.asyncBufferProcessing(argument,
3039                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3040                                                 docstring(),
3041                                                 &GuiViewPrivate::compileAndDestroy,
3042                                                 &Buffer::doExport,
3043                                                 0);
3044                         break;
3045                 }
3046                 case LFUN_MASTER_BUFFER_VIEW: {
3047                         d.asyncBufferProcessing(argument,
3048                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3049                                                 docstring(),
3050                                                 &GuiViewPrivate::previewAndDestroy,
3051                                                 0, &Buffer::preview);
3052                         break;
3053                 }
3054                 case LFUN_BUFFER_SWITCH: {
3055                         string const file_name = to_utf8(cmd.argument());
3056                         if (!FileName::isAbsolute(file_name)) {
3057                                 dr.setError(true);
3058                                 dr.setMessage(_("Absolute filename expected."));
3059                                 break;
3060                         }
3061
3062                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3063                         if (!buffer) {
3064                                 dr.setError(true);
3065                                 dr.setMessage(_("Document not loaded"));
3066                                 break;
3067                         }
3068
3069                         // Do we open or switch to the buffer in this view ?
3070                         if (workArea(*buffer)
3071                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3072                                 setBuffer(buffer);
3073                                 break;
3074                         }
3075
3076                         // Look for the buffer in other views
3077                         QList<int> const ids = guiApp->viewIds();
3078                         int i = 0;
3079                         for (; i != ids.size(); ++i) {
3080                                 GuiView & gv = guiApp->view(ids[i]);
3081                                 if (gv.workArea(*buffer)) {
3082                                         gv.activateWindow();
3083                                         gv.setBuffer(buffer);
3084                                         break;
3085                                 }
3086                         }
3087
3088                         // If necessary, open a new window as a last resort
3089                         if (i == ids.size()) {
3090                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3091                                 lyx::dispatch(cmd);
3092                         }
3093                         break;
3094                 }
3095
3096                 case LFUN_BUFFER_NEXT:
3097                         gotoNextOrPreviousBuffer(NEXTBUFFER);
3098                         break;
3099
3100                 case LFUN_BUFFER_PREVIOUS:
3101                         gotoNextOrPreviousBuffer(PREVBUFFER);
3102                         break;
3103
3104                 case LFUN_COMMAND_EXECUTE: {
3105                         bool const show_it = cmd.argument() != "off";
3106                         // FIXME: this is a hack, "minibuffer" should not be
3107                         // hardcoded.
3108                         if (GuiToolbar * t = toolbar("minibuffer")) {
3109                                 t->setVisible(show_it);
3110                                 if (show_it && t->commandBuffer())
3111                                         t->commandBuffer()->setFocus();
3112                         }
3113                         break;
3114                 }
3115                 case LFUN_DROP_LAYOUTS_CHOICE:
3116                         d.layout_->showPopup();
3117                         break;
3118
3119                 case LFUN_MENU_OPEN:
3120                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3121                                 menu->exec(QCursor::pos());
3122                         break;
3123
3124                 case LFUN_FILE_INSERT:
3125                         insertLyXFile(cmd.argument());
3126                         break;
3127
3128                 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
3129                         insertPlaintextFile(cmd.argument(), true);
3130                         break;
3131
3132                 case LFUN_FILE_INSERT_PLAINTEXT:
3133                         insertPlaintextFile(cmd.argument(), false);
3134                         break;
3135
3136                 case LFUN_BUFFER_RELOAD: {
3137                         LASSERT(doc_buffer, break);
3138
3139                         int ret = 0;
3140                         if (!doc_buffer->isClean()) {
3141                                 docstring const file =
3142                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3143                                 docstring text = bformat(_("Any changes will be lost. "
3144                                         "Are you sure you want to revert to the saved version "
3145                                         "of the document %1$s?"), file);
3146                                 ret = Alert::prompt(_("Revert to saved document?"),
3147                                         text, 1, 1, _("&Revert"), _("&Cancel"));
3148                         }
3149
3150                         if (ret == 0) {
3151                                 doc_buffer->markClean();
3152                                 reloadBuffer(*doc_buffer);
3153                                 dr.forceBufferUpdate();
3154                         }
3155                         break;
3156                 }
3157
3158                 case LFUN_BUFFER_WRITE:
3159                         LASSERT(doc_buffer, break);
3160                         saveBuffer(*doc_buffer);
3161                         break;
3162
3163                 case LFUN_BUFFER_WRITE_AS:
3164                         LASSERT(doc_buffer, break);
3165                         renameBuffer(*doc_buffer, cmd.argument());
3166                         break;
3167
3168                 case LFUN_BUFFER_WRITE_ALL: {
3169                         Buffer * first = theBufferList().first();
3170                         if (!first)
3171                                 break;
3172                         message(_("Saving all documents..."));
3173                         // We cannot use a for loop as the buffer list cycles.
3174                         Buffer * b = first;
3175                         do {
3176                                 if (!b->isClean()) {
3177                                         saveBuffer(*b);
3178                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3179                                 }
3180                                 b = theBufferList().next(b);
3181                         } while (b != first);
3182                         dr.setMessage(_("All documents saved."));
3183                         break;
3184                 }
3185
3186                 case LFUN_BUFFER_CLOSE:
3187                         closeBuffer();
3188                         break;
3189
3190                 case LFUN_BUFFER_CLOSE_ALL:
3191                         closeBufferAll();
3192                         break;
3193
3194                 case LFUN_TOOLBAR_TOGGLE: {
3195                         string const name = cmd.getArg(0);
3196                         if (GuiToolbar * t = toolbar(name))
3197                                 t->toggle();
3198                         break;
3199                 }
3200
3201                 case LFUN_DIALOG_UPDATE: {
3202                         string const name = to_utf8(cmd.argument());
3203                         if (name == "prefs" || name == "document")
3204                                 updateDialog(name, string());
3205                         else if (name == "paragraph")
3206                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3207                         else if (currentBufferView()) {
3208                                 Inset * inset = currentBufferView()->editedInset(name);
3209                                 // Can only update a dialog connected to an existing inset
3210                                 if (inset) {
3211                                         // FIXME: get rid of this indirection; GuiView ask the inset
3212                                         // if he is kind enough to update itself...
3213                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3214                                         //FIXME: pass DispatchResult here?
3215                                         inset->dispatch(currentBufferView()->cursor(), fr);
3216                                 }
3217                         }
3218                         break;
3219                 }
3220
3221                 case LFUN_DIALOG_TOGGLE: {
3222                         if (isDialogVisible(cmd.getArg(0)))
3223                                 dispatch(FuncRequest(LFUN_DIALOG_HIDE, cmd.argument()), dr);
3224                         else
3225                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, cmd.argument()), dr);
3226                         break;
3227                 }
3228
3229                 case LFUN_DIALOG_DISCONNECT_INSET:
3230                         disconnectDialog(to_utf8(cmd.argument()));
3231                         break;
3232
3233                 case LFUN_DIALOG_HIDE: {
3234                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3235                         break;
3236                 }
3237
3238                 case LFUN_DIALOG_SHOW: {
3239                         string const name = cmd.getArg(0);
3240                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3241
3242                         if (name == "character") {
3243                                 data = freefont2string();
3244                                 if (!data.empty())
3245                                         showDialog("character", data);
3246                         } else if (name == "latexlog") {
3247                                 Buffer::LogType type;
3248                                 string const logfile = doc_buffer->logName(&type);
3249                                 switch (type) {
3250                                 case Buffer::latexlog:
3251                                         data = "latex ";
3252                                         break;
3253                                 case Buffer::buildlog:
3254                                         data = "literate ";
3255                                         break;
3256                                 }
3257                                 data += Lexer::quoteString(logfile);
3258                                 showDialog("log", data);
3259                         } else if (name == "vclog") {
3260                                 string const data = "vc " +
3261                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3262                                 showDialog("log", data);
3263                         } else if (name == "symbols") {
3264                                 data = bv->cursor().getEncoding()->name();
3265                                 if (!data.empty())
3266                                         showDialog("symbols", data);
3267                         // bug 5274
3268                         } else if (name == "prefs" && isFullScreen()) {
3269                                 lfunUiToggle("fullscreen");
3270                                 showDialog("prefs", data);
3271                         } else
3272                                 showDialog(name, data);
3273                         break;
3274                 }
3275
3276                 case LFUN_MESSAGE:
3277                         dr.setMessage(cmd.argument());
3278                         break;
3279
3280                 case LFUN_UI_TOGGLE: {
3281                         string arg = cmd.getArg(0);
3282                         if (!lfunUiToggle(arg)) {
3283                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3284                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3285                         }
3286                         // Make sure the keyboard focus stays in the work area.
3287                         setFocus();
3288                         break;
3289                 }
3290
3291                 case LFUN_SPLIT_VIEW: {
3292                         LASSERT(doc_buffer, break);
3293                         string const orientation = cmd.getArg(0);
3294                         d.splitter_->setOrientation(orientation == "vertical"
3295                                 ? Qt::Vertical : Qt::Horizontal);
3296                         TabWorkArea * twa = addTabWorkArea();
3297                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3298                         setCurrentWorkArea(wa);
3299                         break;
3300                 }
3301                 case LFUN_CLOSE_TAB_GROUP:
3302                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3303                                 closeTabWorkArea(twa);
3304                                 d.current_work_area_ = 0;
3305                                 twa = d.currentTabWorkArea();
3306                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3307                                 if (twa) {
3308                                         // Make sure the work area is up to date.
3309                                         setCurrentWorkArea(twa->currentWorkArea());
3310                                 } else {
3311                                         setCurrentWorkArea(0);
3312                                 }
3313                         }
3314                         break;
3315
3316                 case LFUN_COMPLETION_INLINE:
3317                         if (d.current_work_area_)
3318                                 d.current_work_area_->completer().showInline();
3319                         break;
3320
3321                 case LFUN_COMPLETION_POPUP:
3322                         if (d.current_work_area_)
3323                                 d.current_work_area_->completer().showPopup();
3324                         break;
3325
3326
3327                 case LFUN_COMPLETION_COMPLETE:
3328                         if (d.current_work_area_)
3329                                 d.current_work_area_->completer().tab();
3330                         break;
3331
3332                 case LFUN_COMPLETION_CANCEL:
3333                         if (d.current_work_area_) {
3334                                 if (d.current_work_area_->completer().popupVisible())
3335                                         d.current_work_area_->completer().hidePopup();
3336                                 else
3337                                         d.current_work_area_->completer().hideInline();
3338                         }
3339                         break;
3340
3341                 case LFUN_COMPLETION_ACCEPT:
3342                         if (d.current_work_area_)
3343                                 d.current_work_area_->completer().activate();
3344                         break;
3345
3346                 case LFUN_BUFFER_ZOOM_IN:
3347                 case LFUN_BUFFER_ZOOM_OUT:
3348                         if (cmd.argument().empty()) {
3349                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3350                                         lyxrc.zoom += 20;
3351                                 else
3352                                         lyxrc.zoom -= 20;
3353                         } else
3354                                 lyxrc.zoom += convert<int>(cmd.argument());
3355
3356                         if (lyxrc.zoom < 10)
3357                                 lyxrc.zoom = 10;
3358
3359                         // The global QPixmapCache is used in GuiPainter to cache text
3360                         // painting so we must reset it.
3361                         QPixmapCache::clear();
3362                         guiApp->fontLoader().update();
3363                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3364                         break;
3365
3366                 case LFUN_VC_REGISTER:
3367                 case LFUN_VC_CHECK_IN:
3368                 case LFUN_VC_CHECK_OUT:
3369                 case LFUN_VC_REPO_UPDATE:
3370                 case LFUN_VC_LOCKING_TOGGLE:
3371                 case LFUN_VC_REVERT:
3372                 case LFUN_VC_UNDO_LAST:
3373                 case LFUN_VC_COMMAND:
3374                 case LFUN_VC_COMPARE:
3375                         dispatchVC(cmd, dr);
3376                         break;
3377
3378                 case LFUN_SERVER_GOTO_FILE_ROW:
3379                         goToFileRow(to_utf8(cmd.argument()));
3380                         break;
3381
3382                 case LFUN_FORWARD_SEARCH: {
3383                         FileName const path(doc_buffer->temppath());
3384                         string const texname = doc_buffer->latexName();
3385                         FileName const dviname(addName(path.absFileName(),
3386                                     support::changeExtension(texname, "dvi")));
3387                         FileName const pdfname(addName(path.absFileName(),
3388                                     support::changeExtension(texname, "pdf")));
3389                         if (!dviname.exists() && !pdfname.exists()) {
3390                                 dr.setMessage(_("Please, preview the document first."));
3391                                 break;
3392                         }
3393                         string outname = dviname.onlyFileName();
3394                         string command = lyxrc.forward_search_dvi;
3395                         if (!dviname.exists() ||
3396                             pdfname.lastModified() > dviname.lastModified()) {
3397                                 outname = pdfname.onlyFileName();
3398                                 command = lyxrc.forward_search_pdf;
3399                         }
3400
3401                         int row = doc_buffer->texrow().getRowFromIdPos(bv->cursor().paragraph().id(), bv->cursor().pos());
3402                         LYXERR(Debug::ACTION, "Forward search: row:" << row
3403                                 << " id:" << bv->cursor().paragraph().id());
3404                         if (!row || command.empty()) {
3405                                 dr.setMessage(_("Couldn't proceed."));
3406                                 break;
3407                         }
3408                         string texrow = convert<string>(row);
3409
3410                         command = subst(command, "$$n", texrow);
3411                         command = subst(command, "$$t", texname);
3412                         command = subst(command, "$$o", outname);
3413
3414                         PathChanger p(path);
3415                         Systemcall one;
3416                         one.startscript(Systemcall::DontWait, command);
3417                         break;
3418                 }
3419                 default:
3420                         dr.dispatched(false);
3421                         break;
3422         }
3423
3424         // Part of automatic menu appearance feature.
3425         if (isFullScreen()) {
3426                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
3427                         menuBar()->hide();
3428                 if (statusBar()->isVisible())
3429                         statusBar()->hide();
3430         }
3431
3432         return;
3433 }
3434
3435
3436 bool GuiView::lfunUiToggle(string const & ui_component)
3437 {
3438         if (ui_component == "scrollbar") {
3439                 // hide() is of no help
3440                 if (d.current_work_area_->verticalScrollBarPolicy() ==
3441                         Qt::ScrollBarAlwaysOff)
3442
3443                         d.current_work_area_->setVerticalScrollBarPolicy(
3444                                 Qt::ScrollBarAsNeeded);
3445                 else
3446                         d.current_work_area_->setVerticalScrollBarPolicy(
3447                                 Qt::ScrollBarAlwaysOff);
3448         } else if (ui_component == "statusbar") {
3449                 statusBar()->setVisible(!statusBar()->isVisible());
3450         } else if (ui_component == "menubar") {
3451                 menuBar()->setVisible(!menuBar()->isVisible());
3452         } else
3453 #if QT_VERSION >= 0x040300
3454         if (ui_component == "frame") {
3455                 int l, t, r, b;
3456                 getContentsMargins(&l, &t, &r, &b);
3457                 //are the frames in default state?
3458                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
3459                 if (l == 0) {
3460                         setContentsMargins(-2, -2, -2, -2);
3461                 } else {
3462                         setContentsMargins(0, 0, 0, 0);
3463                 }
3464         } else
3465 #endif
3466         if (ui_component == "fullscreen") {
3467                 toggleFullScreen();
3468         } else
3469                 return false;
3470         return true;
3471 }
3472
3473
3474 void GuiView::toggleFullScreen()
3475 {
3476         if (isFullScreen()) {
3477                 for (int i = 0; i != d.splitter_->count(); ++i)
3478                         d.tabWorkArea(i)->setFullScreen(false);
3479 #if QT_VERSION >= 0x040300
3480                 setContentsMargins(0, 0, 0, 0);
3481 #endif
3482                 setWindowState(windowState() ^ Qt::WindowFullScreen);
3483                 restoreLayout();
3484                 menuBar()->show();
3485                 statusBar()->show();
3486         } else {
3487                 // bug 5274
3488                 hideDialogs("prefs", 0);
3489                 for (int i = 0; i != d.splitter_->count(); ++i)
3490                         d.tabWorkArea(i)->setFullScreen(true);
3491 #if QT_VERSION >= 0x040300
3492                 setContentsMargins(-2, -2, -2, -2);
3493 #endif
3494                 saveLayout();
3495                 setWindowState(windowState() ^ Qt::WindowFullScreen);
3496                 statusBar()->hide();
3497                 if (lyxrc.full_screen_menubar)
3498                         menuBar()->hide();
3499                 if (lyxrc.full_screen_toolbars) {
3500                         ToolbarMap::iterator end = d.toolbars_.end();
3501                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
3502                                 it->second->hide();
3503                 }
3504         }
3505
3506         // give dialogs like the TOC a chance to adapt
3507         updateDialogs();
3508 }
3509
3510
3511 Buffer const * GuiView::updateInset(Inset const * inset)
3512 {
3513         if (!inset)
3514                 return 0;
3515
3516         Buffer const * inset_buffer = &(inset->buffer());
3517
3518         for (int i = 0; i != d.splitter_->count(); ++i) {
3519                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
3520                 if (!wa)
3521                         continue;
3522                 Buffer const * buffer = &(wa->bufferView().buffer());
3523                 if (inset_buffer == buffer)
3524                         wa->scheduleRedraw();
3525         }
3526         return inset_buffer;
3527 }
3528
3529
3530 void GuiView::restartCursor()
3531 {
3532         /* When we move around, or type, it's nice to be able to see
3533          * the cursor immediately after the keypress.
3534          */
3535         if (d.current_work_area_)
3536                 d.current_work_area_->startBlinkingCursor();
3537
3538         // Take this occasion to update the other GUI elements.
3539         updateDialogs();
3540         updateStatusBar();
3541 }
3542
3543
3544 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
3545 {
3546         if (d.current_work_area_)
3547                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
3548 }
3549
3550 namespace {
3551
3552 // This list should be kept in sync with the list of insets in
3553 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
3554 // dialog should have the same name as the inset.
3555 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
3556 // docs in LyXAction.cpp.
3557
3558 char const * const dialognames[] = {
3559
3560 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
3561 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
3562 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
3563 "href", "include", "index", "index_print", "info", "listings", "label", "line",
3564 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
3565 "nomencl_print", "note", "paragraph", "phantom", "prefs", "print", "ref",
3566 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
3567 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
3568
3569 char const * const * const end_dialognames =
3570         dialognames + (sizeof(dialognames) / sizeof(char *));
3571
3572 class cmpCStr {
3573 public:
3574         cmpCStr(char const * name) : name_(name) {}
3575         bool operator()(char const * other) {
3576                 return strcmp(other, name_) == 0;
3577         }
3578 private:
3579         char const * name_;
3580 };
3581
3582
3583 bool isValidName(string const & name)
3584 {
3585         return find_if(dialognames, end_dialognames,
3586                                 cmpCStr(name.c_str())) != end_dialognames;
3587 }
3588
3589 } // namespace anon
3590
3591
3592 void GuiView::resetDialogs()
3593 {
3594         // Make sure that no LFUN uses any GuiView.
3595         guiApp->setCurrentView(0);
3596         saveLayout();
3597         menuBar()->clear();
3598         constructToolbars();
3599         guiApp->menus().fillMenuBar(menuBar(), this, false);
3600         d.layout_->updateContents(true);
3601         // Now update controls with current buffer.
3602         guiApp->setCurrentView(this);
3603         restoreLayout();
3604         restartCursor();
3605 }
3606
3607
3608 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
3609 {
3610         if (!isValidName(name))
3611                 return 0;
3612
3613         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
3614
3615         if (it != d.dialogs_.end()) {
3616                 if (hide_it)
3617                         it->second->hideView();
3618                 return it->second.get();
3619         }
3620
3621         Dialog * dialog = build(name);
3622         d.dialogs_[name].reset(dialog);
3623         if (lyxrc.allow_geometry_session)
3624                 dialog->restoreSession();
3625         if (hide_it)
3626                 dialog->hideView();
3627         return dialog;
3628 }
3629
3630
3631 void GuiView::showDialog(string const & name, string const & data,
3632         Inset * inset)
3633 {
3634         triggerShowDialog(toqstr(name), toqstr(data), inset);
3635 }
3636
3637
3638 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
3639         Inset * inset)
3640 {
3641         if (d.in_show_)
3642                 return;
3643
3644         const string name = fromqstr(qname);
3645         const string data = fromqstr(qdata);
3646
3647         d.in_show_ = true;
3648         try {
3649                 Dialog * dialog = findOrBuild(name, false);
3650                 if (dialog) {
3651                         bool const visible = dialog->isVisibleView();
3652                         dialog->showData(data);
3653                         if (inset && currentBufferView())
3654                                 currentBufferView()->editInset(name, inset);
3655                         // We only set the focus to the new dialog if it was not yet
3656                         // visible in order not to change the existing previous behaviour
3657                         if (visible) {
3658                                 // activateWindow is needed for floating dockviews
3659                                 dialog->asQWidget()->raise();
3660                                 dialog->asQWidget()->activateWindow();
3661                                 dialog->asQWidget()->setFocus();
3662                         }
3663                 }
3664         }
3665         catch (ExceptionMessage const & ex) {
3666                 d.in_show_ = false;
3667                 throw ex;
3668         }
3669         d.in_show_ = false;
3670 }
3671
3672
3673 bool GuiView::isDialogVisible(string const & name) const
3674 {
3675         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3676         if (it == d.dialogs_.end())
3677                 return false;
3678         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
3679 }
3680
3681
3682 void GuiView::hideDialog(string const & name, Inset * inset)
3683 {
3684         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3685         if (it == d.dialogs_.end())
3686                 return;
3687
3688         if (inset && currentBufferView()
3689                 && inset != currentBufferView()->editedInset(name))
3690                 return;
3691
3692         Dialog * const dialog = it->second.get();
3693         if (dialog->isVisibleView())
3694                 dialog->hideView();
3695         if (currentBufferView())
3696                 currentBufferView()->editInset(name, 0);
3697 }
3698
3699
3700 void GuiView::disconnectDialog(string const & name)
3701 {
3702         if (!isValidName(name))
3703                 return;
3704         if (currentBufferView())
3705                 currentBufferView()->editInset(name, 0);
3706 }
3707
3708
3709 void GuiView::hideAll() const
3710 {
3711         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3712         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3713
3714         for(; it != end; ++it)
3715                 it->second->hideView();
3716 }
3717
3718
3719 void GuiView::updateDialogs()
3720 {
3721         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3722         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3723
3724         for(; it != end; ++it) {
3725                 Dialog * dialog = it->second.get();
3726                 if (dialog) {
3727                         if (dialog->needBufferOpen() && !documentBufferView())
3728                                 hideDialog(fromqstr(dialog->name()), 0);
3729                         else if (dialog->isVisibleView())
3730                                 dialog->checkStatus();
3731                 }
3732         }
3733         updateToolbars();
3734         updateLayoutList();
3735 }
3736
3737 Dialog * createDialog(GuiView & lv, string const & name);
3738
3739 // will be replaced by a proper factory...
3740 Dialog * createGuiAbout(GuiView & lv);
3741 Dialog * createGuiBibtex(GuiView & lv);
3742 Dialog * createGuiChanges(GuiView & lv);
3743 Dialog * createGuiCharacter(GuiView & lv);
3744 Dialog * createGuiCitation(GuiView & lv);
3745 Dialog * createGuiCompare(GuiView & lv);
3746 Dialog * createGuiCompareHistory(GuiView & lv);
3747 Dialog * createGuiDelimiter(GuiView & lv);
3748 Dialog * createGuiDocument(GuiView & lv);
3749 Dialog * createGuiErrorList(GuiView & lv);
3750 Dialog * createGuiExternal(GuiView & lv);
3751 Dialog * createGuiGraphics(GuiView & lv);
3752 Dialog * createGuiInclude(GuiView & lv);
3753 Dialog * createGuiIndex(GuiView & lv);
3754 Dialog * createGuiListings(GuiView & lv);
3755 Dialog * createGuiLog(GuiView & lv);
3756 Dialog * createGuiMathMatrix(GuiView & lv);
3757 Dialog * createGuiNote(GuiView & lv);
3758 Dialog * createGuiParagraph(GuiView & lv);
3759 Dialog * createGuiPhantom(GuiView & lv);
3760 Dialog * createGuiPreferences(GuiView & lv);
3761 Dialog * createGuiPrint(GuiView & lv);
3762 Dialog * createGuiPrintindex(GuiView & lv);
3763 Dialog * createGuiRef(GuiView & lv);
3764 Dialog * createGuiSearch(GuiView & lv);
3765 Dialog * createGuiSearchAdv(GuiView & lv);
3766 Dialog * createGuiSendTo(GuiView & lv);
3767 Dialog * createGuiShowFile(GuiView & lv);
3768 Dialog * createGuiSpellchecker(GuiView & lv);
3769 Dialog * createGuiSymbols(GuiView & lv);
3770 Dialog * createGuiTabularCreate(GuiView & lv);
3771 Dialog * createGuiTexInfo(GuiView & lv);
3772 Dialog * createGuiToc(GuiView & lv);
3773 Dialog * createGuiThesaurus(GuiView & lv);
3774 Dialog * createGuiViewSource(GuiView & lv);
3775 Dialog * createGuiWrap(GuiView & lv);
3776 Dialog * createGuiProgressView(GuiView & lv);
3777
3778
3779
3780 Dialog * GuiView::build(string const & name)
3781 {
3782         LASSERT(isValidName(name), return 0);
3783
3784         Dialog * dialog = createDialog(*this, name);
3785         if (dialog)
3786                 return dialog;
3787
3788         if (name == "aboutlyx")
3789                 return createGuiAbout(*this);
3790         if (name == "bibtex")
3791                 return createGuiBibtex(*this);
3792         if (name == "changes")
3793                 return createGuiChanges(*this);
3794         if (name == "character")
3795                 return createGuiCharacter(*this);
3796         if (name == "citation")
3797                 return createGuiCitation(*this);
3798         if (name == "compare")
3799                 return createGuiCompare(*this);
3800         if (name == "comparehistory")
3801                 return createGuiCompareHistory(*this);
3802         if (name == "document")
3803                 return createGuiDocument(*this);
3804         if (name == "errorlist")
3805                 return createGuiErrorList(*this);
3806         if (name == "external")
3807                 return createGuiExternal(*this);
3808         if (name == "file")
3809                 return createGuiShowFile(*this);
3810         if (name == "findreplace")
3811                 return createGuiSearch(*this);
3812         if (name == "findreplaceadv")
3813                 return createGuiSearchAdv(*this);
3814         if (name == "graphics")
3815                 return createGuiGraphics(*this);
3816         if (name == "include")
3817                 return createGuiInclude(*this);
3818         if (name == "index")
3819                 return createGuiIndex(*this);
3820         if (name == "index_print")
3821                 return createGuiPrintindex(*this);
3822         if (name == "listings")
3823                 return createGuiListings(*this);
3824         if (name == "log")
3825                 return createGuiLog(*this);
3826         if (name == "mathdelimiter")
3827                 return createGuiDelimiter(*this);
3828         if (name == "mathmatrix")
3829                 return createGuiMathMatrix(*this);
3830         if (name == "note")
3831                 return createGuiNote(*this);
3832         if (name == "paragraph")
3833                 return createGuiParagraph(*this);
3834         if (name == "phantom")
3835                 return createGuiPhantom(*this);
3836         if (name == "prefs")
3837                 return createGuiPreferences(*this);
3838         if (name == "print")
3839                 return createGuiPrint(*this);
3840         if (name == "ref")
3841                 return createGuiRef(*this);
3842         if (name == "sendto")
3843                 return createGuiSendTo(*this);
3844         if (name == "spellchecker")
3845                 return createGuiSpellchecker(*this);
3846         if (name == "symbols")
3847                 return createGuiSymbols(*this);
3848         if (name == "tabularcreate")
3849                 return createGuiTabularCreate(*this);
3850         if (name == "texinfo")
3851                 return createGuiTexInfo(*this);
3852         if (name == "thesaurus")
3853                 return createGuiThesaurus(*this);
3854         if (name == "toc")
3855                 return createGuiToc(*this);
3856         if (name == "view-source")
3857                 return createGuiViewSource(*this);
3858         if (name == "wrap")
3859                 return createGuiWrap(*this);
3860         if (name == "progress")
3861                 return createGuiProgressView(*this);
3862
3863         return 0;
3864 }
3865
3866
3867 } // namespace frontend
3868 } // namespace lyx
3869
3870 #include "moc_GuiView.cpp"