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         for (int i = 0; i != d.splitter_->count(); ++i) {
1220                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
1221                         //if (d.current_main_work_area_)
1222                         //      d.current_main_work_area_->setFrameStyle(QFrame::NoFrame);
1223                         d.current_main_work_area_ = wa;
1224                         //d.current_main_work_area_->setFrameStyle(QFrame::Box | QFrame::Plain);
1225                         //d.current_main_work_area_->setLineWidth(2);
1226                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1227                         return;
1228                 }
1229         }
1230         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
1231         on_currentWorkAreaChanged(wa);
1232         BufferView & bv = wa->bufferView();
1233         bv.cursor().fixIfBroken();
1234         bv.updateMetrics();
1235         wa->setUpdatesEnabled(true);
1236         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1237 }
1238
1239
1240 void GuiView::removeWorkArea(GuiWorkArea * wa)
1241 {
1242         LASSERT(wa, return);
1243         if (wa == d.current_work_area_) {
1244                 disconnectBuffer();
1245                 disconnectBufferView();
1246                 d.current_work_area_ = 0;
1247                 d.current_main_work_area_ = 0;
1248         }
1249
1250         bool found_twa = false;
1251         for (int i = 0; i != d.splitter_->count(); ++i) {
1252                 TabWorkArea * twa = d.tabWorkArea(i);
1253                 if (twa->removeWorkArea(wa)) {
1254                         // Found in this tab group, and deleted the GuiWorkArea.
1255                         found_twa = true;
1256                         if (twa->count() != 0) {
1257                                 if (d.current_work_area_ == 0)
1258                                         // This means that we are closing the current GuiWorkArea, so
1259                                         // switch to the next GuiWorkArea in the found TabWorkArea.
1260                                         setCurrentWorkArea(twa->currentWorkArea());
1261                         } else {
1262                                 // No more WorkAreas in this tab group, so delete it.
1263                                 delete twa;
1264                         }
1265                         break;
1266                 }
1267         }
1268
1269         // It is not a tabbed work area (i.e., the search work area), so it
1270         // should be deleted by other means.
1271         LASSERT(found_twa, /* */);
1272
1273         if (d.current_work_area_ == 0) {
1274                 if (d.splitter_->count() != 0) {
1275                         TabWorkArea * twa = d.currentTabWorkArea();
1276                         setCurrentWorkArea(twa->currentWorkArea());
1277                 } else {
1278                         // No more work areas, switch to the background widget.
1279                         setCurrentWorkArea(0);
1280                 }
1281         }
1282 }
1283
1284
1285 LayoutBox * GuiView::getLayoutDialog() const
1286 {
1287         return d.layout_;
1288 }
1289
1290
1291 void GuiView::updateLayoutList()
1292 {
1293         if (d.layout_)
1294                 d.layout_->updateContents(false);
1295 }
1296
1297
1298 void GuiView::updateToolbars()
1299 {
1300         ToolbarMap::iterator end = d.toolbars_.end();
1301         if (d.current_work_area_) {
1302                 bool const math =
1303                         d.current_work_area_->bufferView().cursor().inMathed()
1304                         && !d.current_work_area_->bufferView().cursor().inRegexped();
1305                 bool const table =
1306                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1307                 bool const review =
1308                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1309                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onOff(true);
1310                 bool const mathmacrotemplate =
1311                         lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled();
1312
1313                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1314                         it->second->update(math, table, review, mathmacrotemplate);
1315         } else
1316                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1317                         it->second->update(false, false, false, false);
1318 }
1319
1320
1321 void GuiView::setBuffer(Buffer * newBuffer)
1322 {
1323         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << endl);
1324         LASSERT(newBuffer, return);
1325         setBusy(true);
1326
1327         GuiWorkArea * wa = workArea(*newBuffer);
1328         if (wa == 0) {
1329                 newBuffer->masterBuffer()->updateBuffer();
1330                 wa = addWorkArea(*newBuffer);
1331                 // scroll to the position when the BufferView was last closed
1332                 if (lyxrc.use_lastfilepos) {
1333                         LastFilePosSection::FilePos filepos =
1334                                 theSession().lastFilePos().load(newBuffer->fileName());
1335                         wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1336                 }
1337         } else {
1338                 //Disconnect the old buffer...there's no new one.
1339                 disconnectBuffer();
1340         }
1341         connectBuffer(*newBuffer);
1342         connectBufferView(wa->bufferView());
1343         setCurrentWorkArea(wa);
1344
1345         setBusy(false);
1346 }
1347
1348
1349 void GuiView::connectBuffer(Buffer & buf)
1350 {
1351         buf.setGuiDelegate(this);
1352 }
1353
1354
1355 void GuiView::disconnectBuffer()
1356 {
1357         if (d.current_work_area_)
1358                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1359 }
1360
1361
1362 void GuiView::connectBufferView(BufferView & bv)
1363 {
1364         bv.setGuiDelegate(this);
1365 }
1366
1367
1368 void GuiView::disconnectBufferView()
1369 {
1370         if (d.current_work_area_)
1371                 d.current_work_area_->bufferView().setGuiDelegate(0);
1372 }
1373
1374
1375 void GuiView::errors(string const & error_type, bool from_master)
1376 {
1377         ErrorList & el = from_master ?
1378                 currentBufferView()->buffer().masterBuffer()->errorList(error_type)
1379                 : currentBufferView()->buffer().errorList(error_type);
1380         string data = error_type;
1381         if (from_master)
1382                 data = "from_master|" + error_type;
1383         if (!el.empty())
1384                 showDialog("errorlist", data);
1385 }
1386
1387
1388 void GuiView::updateTocItem(string const & type, DocIterator const & dit)
1389 {
1390         d.toc_models_.updateItem(toqstr(type), dit);
1391 }
1392
1393
1394 void GuiView::structureChanged()
1395 {
1396         d.toc_models_.reset(documentBufferView());
1397         // Navigator needs more than a simple update in this case. It needs to be
1398         // rebuilt.
1399         updateDialog("toc", "");
1400 }
1401
1402
1403 void GuiView::updateDialog(string const & name, string const & data)
1404 {
1405         if (!isDialogVisible(name))
1406                 return;
1407
1408         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1409         if (it == d.dialogs_.end())
1410                 return;
1411
1412         Dialog * const dialog = it->second.get();
1413         if (dialog->isVisibleView())
1414                 dialog->initialiseParams(data);
1415 }
1416
1417
1418 BufferView * GuiView::documentBufferView()
1419 {
1420         return currentMainWorkArea()
1421                 ? &currentMainWorkArea()->bufferView()
1422                 : 0;
1423 }
1424
1425
1426 BufferView const * GuiView::documentBufferView() const
1427 {
1428         return currentMainWorkArea()
1429                 ? &currentMainWorkArea()->bufferView()
1430                 : 0;
1431 }
1432
1433
1434 BufferView * GuiView::currentBufferView()
1435 {
1436         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1437 }
1438
1439
1440 BufferView const * GuiView::currentBufferView() const
1441 {
1442         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1443 }
1444
1445
1446 #if (QT_VERSION >= 0x040400)
1447 docstring GuiView::GuiViewPrivate::saveAndDestroy(Buffer const * orig, Buffer * buffer, FileName const & fname)
1448 {
1449         bool failed = true;
1450         FileName const tmp_ret = FileName::tempName("lyxauto");
1451         if (!tmp_ret.empty()) {
1452                 if (buffer->writeFile(tmp_ret))
1453                         failed = !tmp_ret.moveTo(fname);
1454         }
1455         if (failed) {
1456                 // failed to write/rename tmp_ret so try writing direct
1457                 failed = buffer->writeFile(fname);
1458         }
1459         delete buffer;
1460         busyBuffers.remove(orig);
1461         return failed
1462                 ? _("Automatic save failed!")
1463                 : _("Automatic save done.");
1464 }
1465 #endif
1466
1467
1468 void GuiView::autoSave()
1469 {
1470         LYXERR(Debug::INFO, "Running autoSave()");
1471
1472         Buffer * buffer = documentBufferView()
1473                 ? &documentBufferView()->buffer() : 0;
1474         if (!buffer)
1475                 return;
1476
1477 #if (QT_VERSION >= 0x040400)
1478         GuiViewPrivate::busyBuffers.insert(buffer);
1479         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::saveAndDestroy, buffer, buffer->clone(),
1480                 buffer->getAutosaveFileName());
1481         d.autosave_watcher_.setFuture(f);
1482 #else
1483         buffer->autoSave();
1484 #endif
1485 }
1486
1487
1488 void GuiView::resetAutosaveTimers()
1489 {
1490         if (lyxrc.autosave)
1491                 d.autosave_timeout_.restart();
1492 }
1493
1494
1495 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1496 {
1497         bool enable = true;
1498         Buffer * buf = currentBufferView()
1499                 ? &currentBufferView()->buffer() : 0;
1500         Buffer * doc_buffer = documentBufferView()
1501                 ? &(documentBufferView()->buffer()) : 0;
1502
1503         // Check whether we need a buffer
1504         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
1505                 // no, exit directly
1506                 flag.message(from_utf8(N_("Command not allowed with"
1507                                         "out any document open")));
1508                 flag.setEnabled(false);
1509                 return true;
1510         }
1511
1512         if (cmd.origin() == FuncRequest::TOC) {
1513                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1514                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
1515                         flag.setEnabled(false);
1516                 return true;
1517         }
1518
1519         switch(cmd.action()) {
1520         case LFUN_BUFFER_IMPORT:
1521                 break;
1522
1523         case LFUN_MASTER_BUFFER_UPDATE:
1524         case LFUN_MASTER_BUFFER_VIEW:
1525                 enable = doc_buffer && doc_buffer->parent() != 0
1526                         && !d.processing_thread_watcher_.isRunning();
1527                 break;
1528
1529         case LFUN_BUFFER_UPDATE:
1530         case LFUN_BUFFER_VIEW: {
1531                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
1532                         enable = false;
1533                         break;
1534                 }
1535                 string format = to_utf8(cmd.argument());
1536                 if (cmd.argument().empty())
1537                         format = doc_buffer->getDefaultOutputFormat();
1538                 enable = doc_buffer->isExportableFormat(format);
1539                 break;
1540         }
1541
1542         case LFUN_BUFFER_RELOAD:
1543                 enable = doc_buffer && !doc_buffer->isUnnamed()
1544                         && doc_buffer->fileName().exists()
1545                         && (!doc_buffer->isClean()
1546                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1547                 break;
1548
1549         case LFUN_BUFFER_CHILD_OPEN:
1550                 enable = doc_buffer;
1551                 break;
1552
1553         case LFUN_BUFFER_WRITE:
1554                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1555                 break;
1556
1557         //FIXME: This LFUN should be moved to GuiApplication.
1558         case LFUN_BUFFER_WRITE_ALL: {
1559                 // We enable the command only if there are some modified buffers
1560                 Buffer * first = theBufferList().first();
1561                 enable = false;
1562                 if (!first)
1563                         break;
1564                 Buffer * b = first;
1565                 // We cannot use a for loop as the buffer list is a cycle.
1566                 do {
1567                         if (!b->isClean()) {
1568                                 enable = true;
1569                                 break;
1570                         }
1571                         b = theBufferList().next(b);
1572                 } while (b != first);
1573                 break;
1574         }
1575
1576         case LFUN_BUFFER_WRITE_AS:
1577                 enable = doc_buffer;
1578                 break;
1579
1580         case LFUN_BUFFER_CLOSE:
1581                 enable = doc_buffer;
1582                 break;
1583
1584         case LFUN_BUFFER_CLOSE_ALL:
1585                 enable = theBufferList().last() != theBufferList().first();
1586                 break;
1587
1588         case LFUN_SPLIT_VIEW:
1589                 if (cmd.getArg(0) == "vertical")
1590                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1591                                          d.splitter_->orientation() == Qt::Vertical);
1592                 else
1593                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1594                                          d.splitter_->orientation() == Qt::Horizontal);
1595                 break;
1596
1597         case LFUN_CLOSE_TAB_GROUP:
1598                 enable = d.currentTabWorkArea();
1599                 break;
1600
1601         case LFUN_TOOLBAR_TOGGLE: {
1602                 string const name = cmd.getArg(0);
1603                 if (GuiToolbar * t = toolbar(name))
1604                         flag.setOnOff(t->isVisible());
1605                 else {
1606                         enable = false;
1607                         docstring const msg =
1608                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
1609                         flag.message(msg);
1610                 }
1611                 break;
1612         }
1613
1614         case LFUN_DROP_LAYOUTS_CHOICE:
1615                 enable = buf;
1616                 break;
1617
1618         case LFUN_UI_TOGGLE:
1619                 flag.setOnOff(isFullScreen());
1620                 break;
1621
1622         case LFUN_DIALOG_DISCONNECT_INSET:
1623                 break;
1624
1625         case LFUN_DIALOG_HIDE:
1626                 // FIXME: should we check if the dialog is shown?
1627                 break;
1628
1629         case LFUN_DIALOG_TOGGLE:
1630                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1631                 // fall through to set "enable"
1632         case LFUN_DIALOG_SHOW: {
1633                 string const name = cmd.getArg(0);
1634                 if (!doc_buffer)
1635                         enable = name == "aboutlyx"
1636                                 || name == "file" //FIXME: should be removed.
1637                                 || name == "prefs"
1638                                 || name == "texinfo"
1639                                 || name == "progress"
1640                                 || name == "compare";
1641                 else if (name == "print")
1642                         enable = doc_buffer->isExportable("dvi")
1643                                 && lyxrc.print_command != "none";
1644                 else if (name == "character" || name == "symbols") {
1645                         if (!buf || buf->isReadonly())
1646                                 enable = false;
1647                         else {
1648                                 // FIXME we should consider passthru
1649                                 // paragraphs too.
1650                                 Inset const & in = currentBufferView()->cursor().inset();
1651                                 enable = !in.getLayout().isPassThru();
1652                         }
1653                 }
1654                 else if (name == "latexlog")
1655                         enable = FileName(doc_buffer->logName()).isReadableFile();
1656                 else if (name == "spellchecker")
1657                         enable = theSpellChecker() && !doc_buffer->isReadonly();
1658                 else if (name == "vclog")
1659                         enable = doc_buffer->lyxvc().inUse();
1660                 break;
1661         }
1662
1663         case LFUN_DIALOG_UPDATE: {
1664                 string const name = cmd.getArg(0);
1665                 if (!buf)
1666                         enable = name == "prefs";
1667                 break;
1668         }
1669
1670         case LFUN_COMMAND_EXECUTE:
1671         case LFUN_MESSAGE:
1672         case LFUN_MENU_OPEN:
1673                 // Nothing to check.
1674                 break;
1675
1676         case LFUN_COMPLETION_INLINE:
1677                 if (!d.current_work_area_
1678                         || !d.current_work_area_->completer().inlinePossible(
1679                         currentBufferView()->cursor()))
1680                         enable = false;
1681                 break;
1682
1683         case LFUN_COMPLETION_POPUP:
1684                 if (!d.current_work_area_
1685                         || !d.current_work_area_->completer().popupPossible(
1686                         currentBufferView()->cursor()))
1687                         enable = false;
1688                 break;
1689
1690         case LFUN_COMPLETION_COMPLETE:
1691                 if (!d.current_work_area_
1692                         || !d.current_work_area_->completer().inlinePossible(
1693                         currentBufferView()->cursor()))
1694                         enable = false;
1695                 break;
1696
1697         case LFUN_COMPLETION_ACCEPT:
1698                 if (!d.current_work_area_
1699                         || (!d.current_work_area_->completer().popupVisible()
1700                         && !d.current_work_area_->completer().inlineVisible()
1701                         && !d.current_work_area_->completer().completionAvailable()))
1702                         enable = false;
1703                 break;
1704
1705         case LFUN_COMPLETION_CANCEL:
1706                 if (!d.current_work_area_
1707                         || (!d.current_work_area_->completer().popupVisible()
1708                         && !d.current_work_area_->completer().inlineVisible()))
1709                         enable = false;
1710                 break;
1711
1712         case LFUN_BUFFER_ZOOM_OUT:
1713                 enable = doc_buffer && lyxrc.zoom > 10;
1714                 break;
1715
1716         case LFUN_BUFFER_ZOOM_IN:
1717                 enable = doc_buffer;
1718                 break;
1719
1720         case LFUN_BUFFER_NEXT:
1721         case LFUN_BUFFER_PREVIOUS:
1722                 // FIXME: should we check is there is an previous or next buffer?
1723                 break;
1724         case LFUN_BUFFER_SWITCH:
1725                 // toggle on the current buffer, but do not toggle off
1726                 // the other ones (is that a good idea?)
1727                 if (doc_buffer
1728                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
1729                         flag.setOnOff(true);
1730                 break;
1731
1732         case LFUN_VC_REGISTER:
1733                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
1734                 break;
1735         case LFUN_VC_CHECK_IN:
1736                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
1737                 break;
1738         case LFUN_VC_CHECK_OUT:
1739                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
1740                 break;
1741         case LFUN_VC_LOCKING_TOGGLE:
1742                 enable = doc_buffer && !doc_buffer->isReadonly()
1743                         && doc_buffer->lyxvc().lockingToggleEnabled();
1744                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
1745                 break;
1746         case LFUN_VC_REVERT:
1747                 enable = doc_buffer && doc_buffer->lyxvc().inUse() && !doc_buffer->isReadonly();
1748                 break;
1749         case LFUN_VC_UNDO_LAST:
1750                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
1751                 break;
1752         case LFUN_VC_REPO_UPDATE:
1753                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
1754                 break;
1755         case LFUN_VC_COMMAND: {
1756                 if (cmd.argument().empty())
1757                         enable = false;
1758                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
1759                         enable = false;
1760                 break;
1761         }
1762         case LFUN_VC_COMPARE:
1763                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
1764                 break;
1765
1766         case LFUN_SERVER_GOTO_FILE_ROW:
1767                 break;
1768         case LFUN_FORWARD_SEARCH:
1769                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty());
1770                 break;
1771
1772         default:
1773                 return false;
1774         }
1775
1776         if (!enable)
1777                 flag.setEnabled(false);
1778
1779         return true;
1780 }
1781
1782
1783 static FileName selectTemplateFile()
1784 {
1785         FileDialog dlg(qt_("Select template file"));
1786         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1787         dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1788
1789         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
1790                                  QStringList(qt_("LyX Documents (*.lyx)")));
1791
1792         if (result.first == FileDialog::Later)
1793                 return FileName();
1794         if (result.second.isEmpty())
1795                 return FileName();
1796         return FileName(fromqstr(result.second));
1797 }
1798
1799
1800 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
1801 {
1802         setBusy(true);
1803
1804         Buffer * newBuffer = 0;
1805         try {
1806                 newBuffer = checkAndLoadLyXFile(filename);
1807         } catch (ExceptionMessage const & e) {
1808                 setBusy(false);
1809                 throw(e);
1810         }
1811
1812         if (!newBuffer) {
1813                 message(_("Document not loaded."));
1814                 setBusy(false);
1815                 return 0;
1816         }
1817
1818         newBuffer->errors("Parse");
1819         setBuffer(newBuffer);
1820
1821         if (tolastfiles)
1822                 theSession().lastFiles().add(filename);
1823
1824         setBusy(false);
1825         return newBuffer;
1826 }
1827
1828
1829 void GuiView::openDocument(string const & fname)
1830 {
1831         string initpath = lyxrc.document_path;
1832
1833         if (documentBufferView()) {
1834                 string const trypath = documentBufferView()->buffer().filePath();
1835                 // If directory is writeable, use this as default.
1836                 if (FileName(trypath).isDirWritable())
1837                         initpath = trypath;
1838         }
1839
1840         string filename;
1841
1842         if (fname.empty()) {
1843                 FileDialog dlg(qt_("Select document to open"), LFUN_FILE_OPEN);
1844                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1845                 dlg.setButton2(qt_("Examples|#E#e"),
1846                                 toqstr(addPath(package().system_support().absFileName(), "examples")));
1847
1848                 QStringList filter(qt_("LyX Documents (*.lyx)"));
1849                 filter << qt_("LyX-1.3.x Documents (*.lyx13)")
1850                         << qt_("LyX-1.4.x Documents (*.lyx14)")
1851                         << qt_("LyX-1.5.x Documents (*.lyx15)")
1852                         << qt_("LyX-1.6.x Documents (*.lyx16)");
1853                 FileDialog::Result result =
1854                         dlg.open(toqstr(initpath), filter);
1855
1856                 if (result.first == FileDialog::Later)
1857                         return;
1858
1859                 filename = fromqstr(result.second);
1860
1861                 // check selected filename
1862                 if (filename.empty()) {
1863                         message(_("Canceled."));
1864                         return;
1865                 }
1866         } else
1867                 filename = fname;
1868
1869         // get absolute path of file and add ".lyx" to the filename if
1870         // necessary.
1871         FileName const fullname =
1872                         fileSearch(string(), filename, "lyx", support::may_not_exist);
1873         if (!fullname.empty())
1874                 filename = fullname.absFileName();
1875
1876         if (!fullname.onlyPath().isDirectory()) {
1877                 Alert::warning(_("Invalid filename"),
1878                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
1879                                 from_utf8(fullname.absFileName())));
1880                 return;
1881         }
1882
1883         // if the file doesn't exist and isn't already open (bug 6645),
1884         // let the user create one
1885         if (!fullname.exists() && !theBufferList().exists(fullname)) {
1886                 // the user specifically chose this name. Believe him.
1887                 Buffer * const b = newFile(filename, string(), true);
1888                 if (b)
1889                         setBuffer(b);
1890                 return;
1891         }
1892
1893         docstring const disp_fn = makeDisplayPath(filename);
1894         message(bformat(_("Opening document %1$s..."), disp_fn));
1895
1896         docstring str2;
1897         Buffer * buf = loadDocument(fullname);
1898         if (buf) {
1899                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1900                 if (buf->lyxvc().inUse())
1901                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
1902                                 " " + _("Version control detected.");
1903         } else {
1904                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1905         }
1906         message(str2);
1907 }
1908
1909 // FIXME: clean that
1910 static bool import(GuiView * lv, FileName const & filename,
1911         string const & format, ErrorList & errorList)
1912 {
1913         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
1914
1915         string loader_format;
1916         vector<string> loaders = theConverters().loaders();
1917         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
1918                 for (vector<string>::const_iterator it = loaders.begin();
1919                          it != loaders.end(); ++it) {
1920                         if (!theConverters().isReachable(format, *it))
1921                                 continue;
1922
1923                         string const tofile =
1924                                 support::changeExtension(filename.absFileName(),
1925                                 formats.extension(*it));
1926                         if (!theConverters().convert(0, filename, FileName(tofile),
1927                                 filename, format, *it, errorList))
1928                                 return false;
1929                         loader_format = *it;
1930                         break;
1931                 }
1932                 if (loader_format.empty()) {
1933                         frontend::Alert::error(_("Couldn't import file"),
1934                                          bformat(_("No information for importing the format %1$s."),
1935                                          formats.prettyName(format)));
1936                         return false;
1937                 }
1938         } else
1939                 loader_format = format;
1940
1941         if (loader_format == "lyx") {
1942                 Buffer * buf = lv->loadDocument(lyxfile);
1943                 if (!buf)
1944                         return false;
1945         } else {
1946                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
1947                 if (!b)
1948                         return false;
1949                 lv->setBuffer(b);
1950                 bool as_paragraphs = loader_format == "textparagraph";
1951                 string filename2 = (loader_format == format) ? filename.absFileName()
1952                         : support::changeExtension(filename.absFileName(),
1953                                           formats.extension(loader_format));
1954                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
1955                         as_paragraphs);
1956                 guiApp->setCurrentView(lv);
1957                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1958         }
1959
1960         return true;
1961 }
1962
1963
1964 void GuiView::importDocument(string const & argument)
1965 {
1966         string format;
1967         string filename = split(argument, format, ' ');
1968
1969         LYXERR(Debug::INFO, format << " file: " << filename);
1970
1971         // need user interaction
1972         if (filename.empty()) {
1973                 string initpath = lyxrc.document_path;
1974                 if (documentBufferView()) {
1975                         string const trypath = documentBufferView()->buffer().filePath();
1976                         // If directory is writeable, use this as default.
1977                         if (FileName(trypath).isDirWritable())
1978                                 initpath = trypath;
1979                 }
1980
1981                 docstring const text = bformat(_("Select %1$s file to import"),
1982                         formats.prettyName(format));
1983
1984                 FileDialog dlg(toqstr(text), LFUN_BUFFER_IMPORT);
1985                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1986                 dlg.setButton2(qt_("Examples|#E#e"),
1987                         toqstr(addPath(package().system_support().absFileName(), "examples")));
1988
1989                 docstring filter = formats.prettyName(format);
1990                 filter += " (*.";
1991                 // FIXME UNICODE
1992                 filter += from_utf8(formats.extension(format));
1993                 filter += ')';
1994
1995                 FileDialog::Result result =
1996                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
1997
1998                 if (result.first == FileDialog::Later)
1999                         return;
2000
2001                 filename = fromqstr(result.second);
2002
2003                 // check selected filename
2004                 if (filename.empty())
2005                         message(_("Canceled."));
2006         }
2007
2008         if (filename.empty())
2009                 return;
2010
2011         // get absolute path of file
2012         FileName const fullname(support::makeAbsPath(filename));
2013
2014         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2015
2016         // Check if the document already is open
2017         Buffer * buf = theBufferList().getBuffer(lyxfile);
2018         if (buf) {
2019                 setBuffer(buf);
2020                 if (!closeBuffer()) {
2021                         message(_("Canceled."));
2022                         return;
2023                 }
2024         }
2025
2026         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
2027
2028         // if the file exists already, and we didn't do
2029         // -i lyx thefile.lyx, warn
2030         if (lyxfile.exists() && fullname != lyxfile) {
2031
2032                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2033                         "Do you want to overwrite that document?"), displaypath);
2034                 int const ret = Alert::prompt(_("Overwrite document?"),
2035                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
2036
2037                 if (ret == 1) {
2038                         message(_("Canceled."));
2039                         return;
2040                 }
2041         }
2042
2043         message(bformat(_("Importing %1$s..."), displaypath));
2044         ErrorList errorList;
2045         if (import(this, fullname, format, errorList))
2046                 message(_("imported."));
2047         else
2048                 message(_("file not imported!"));
2049
2050         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2051 }
2052
2053
2054 void GuiView::newDocument(string const & filename, bool from_template)
2055 {
2056         FileName initpath(lyxrc.document_path);
2057         if (documentBufferView()) {
2058                 FileName const trypath(documentBufferView()->buffer().filePath());
2059                 // If directory is writeable, use this as default.
2060                 if (trypath.isDirWritable())
2061                         initpath = trypath;
2062         }
2063
2064         string templatefile;
2065         if (from_template) {
2066                 templatefile = selectTemplateFile().absFileName();
2067                 if (templatefile.empty())
2068                         return;
2069         }
2070
2071         Buffer * b;
2072         if (filename.empty())
2073                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
2074         else
2075                 b = newFile(filename, templatefile, true);
2076
2077         if (b)
2078                 setBuffer(b);
2079
2080         // If no new document could be created, it is unsure
2081         // whether there is a valid BufferView.
2082         if (currentBufferView())
2083                 // Ensure the cursor is correctly positioned on screen.
2084                 currentBufferView()->showCursor();
2085 }
2086
2087
2088 void GuiView::insertLyXFile(docstring const & fname)
2089 {
2090         BufferView * bv = documentBufferView();
2091         if (!bv)
2092                 return;
2093
2094         // FIXME UNICODE
2095         FileName filename(to_utf8(fname));
2096         if (filename.empty()) {
2097                 // Launch a file browser
2098                 // FIXME UNICODE
2099                 string initpath = lyxrc.document_path;
2100                 string const trypath = bv->buffer().filePath();
2101                 // If directory is writeable, use this as default.
2102                 if (FileName(trypath).isDirWritable())
2103                         initpath = trypath;
2104
2105                 // FIXME UNICODE
2106                 FileDialog dlg(qt_("Select LyX document to insert"), LFUN_FILE_INSERT);
2107                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2108                 dlg.setButton2(qt_("Examples|#E#e"),
2109                         toqstr(addPath(package().system_support().absFileName(),
2110                         "examples")));
2111
2112                 FileDialog::Result result = dlg.open(toqstr(initpath),
2113                                          QStringList(qt_("LyX Documents (*.lyx)")));
2114
2115                 if (result.first == FileDialog::Later)
2116                         return;
2117
2118                 // FIXME UNICODE
2119                 filename.set(fromqstr(result.second));
2120
2121                 // check selected filename
2122                 if (filename.empty()) {
2123                         // emit message signal.
2124                         message(_("Canceled."));
2125                         return;
2126                 }
2127         }
2128
2129         bv->insertLyXFile(filename);
2130         bv->buffer().errors("Parse");
2131 }
2132
2133
2134 void GuiView::insertPlaintextFile(docstring const & fname,
2135         bool asParagraph)
2136 {
2137         BufferView * bv = documentBufferView();
2138         if (!bv)
2139                 return;
2140
2141         if (!fname.empty() && !FileName::isAbsolute(to_utf8(fname))) {
2142                 message(_("Absolute filename expected."));
2143                 return;
2144         }
2145
2146         // FIXME UNICODE
2147         FileName filename(to_utf8(fname));
2148
2149         if (!filename.empty()) {
2150                 bv->insertPlaintextFile(filename, asParagraph);
2151                 return;
2152         }
2153
2154         FileDialog dlg(qt_("Select file to insert"), (asParagraph ?
2155                 LFUN_FILE_INSERT_PLAINTEXT_PARA : LFUN_FILE_INSERT_PLAINTEXT));
2156
2157         FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
2158                 QStringList(qt_("All Files (*)")));
2159
2160         if (result.first == FileDialog::Later)
2161                 return;
2162
2163         // FIXME UNICODE
2164         filename.set(fromqstr(result.second));
2165
2166         // check selected filename
2167         if (filename.empty()) {
2168                 // emit message signal.
2169                 message(_("Canceled."));
2170                 return;
2171         }
2172
2173         bv->insertPlaintextFile(filename, asParagraph);
2174 }
2175
2176
2177 bool GuiView::renameBuffer(Buffer & b, docstring const & newname)
2178 {
2179         FileName fname = b.fileName();
2180         FileName const oldname = fname;
2181
2182         if (!newname.empty()) {
2183                 // FIXME UNICODE
2184                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFileName());
2185         } else {
2186                 // Switch to this Buffer.
2187                 setBuffer(&b);
2188
2189                 // No argument? Ask user through dialog.
2190                 // FIXME UNICODE
2191                 FileDialog dlg(qt_("Choose a filename to save document as"),
2192                                    LFUN_BUFFER_WRITE_AS);
2193                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2194                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2195
2196                 if (!isLyXFileName(fname.absFileName()))
2197                         fname.changeExtension(".lyx");
2198
2199                 FileDialog::Result result =
2200                         dlg.save(toqstr(fname.onlyPath().absFileName()),
2201                                    QStringList(qt_("LyX Documents (*.lyx)")),
2202                                          toqstr(fname.onlyFileName()));
2203
2204                 if (result.first == FileDialog::Later)
2205                         return false;
2206
2207                 fname.set(fromqstr(result.second));
2208
2209                 if (fname.empty())
2210                         return false;
2211
2212                 if (!isLyXFileName(fname.absFileName()))
2213                         fname.changeExtension(".lyx");
2214         }
2215
2216         // fname is now the new Buffer location.
2217         if (FileName(fname).exists()) {
2218                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2219                 docstring text = bformat(_("The document %1$s already "
2220                                            "exists.\n\nDo you want to "
2221                                            "overwrite that document?"),
2222                                          file);
2223                 int const ret = Alert::prompt(_("Overwrite document?"),
2224                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2225                 switch (ret) {
2226                 case 0: break;
2227                 case 1: return renameBuffer(b, docstring());
2228                 case 2: return false;
2229                 }
2230         }
2231
2232         FileName oldauto = b.getAutosaveFileName();
2233
2234         // Ok, change the name of the buffer
2235         b.setFileName(fname.absFileName());
2236         b.markDirty();
2237         bool unnamed = b.isUnnamed();
2238         b.setUnnamed(false);
2239         b.saveCheckSum();
2240
2241         // bring the autosave file with us, just in case.
2242         b.moveAutosaveFile(oldauto);
2243
2244         if (!saveBuffer(b)) {
2245                 oldauto = b.getAutosaveFileName();
2246                 b.setFileName(oldname.absFileName());
2247                 b.setUnnamed(unnamed);
2248                 b.saveCheckSum();
2249                 b.moveAutosaveFile(oldauto);
2250                 return false;
2251         }
2252
2253         // validate version control data and
2254         // correct buffer title
2255         b.lyxvc().file_found_hook(b.fileName());
2256         b.updateTitles();
2257
2258         // the file has now been saved to the new location.
2259         // we need to check that the locations of child buffers
2260         // are still valid.
2261         b.checkChildBuffers();
2262
2263         return true;
2264 }
2265
2266
2267 bool GuiView::saveBuffer(Buffer & b)
2268 {
2269         if (workArea(b) && workArea(b)->inDialogMode())
2270                 return true;
2271
2272         if (b.isUnnamed())
2273                 return renameBuffer(b, docstring());
2274
2275         if (b.save()) {
2276                 theSession().lastFiles().add(b.fileName());
2277                 return true;
2278         }
2279
2280         // Switch to this Buffer.
2281         setBuffer(&b);
2282
2283         // FIXME: we don't tell the user *WHY* the save failed !!
2284         docstring const file = makeDisplayPath(b.absFileName(), 30);
2285         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2286                                    "Do you want to rename the document and "
2287                                    "try again?"), file);
2288         int const ret = Alert::prompt(_("Rename and save?"),
2289                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2290         switch (ret) {
2291         case 0:
2292                 if (!renameBuffer(b, docstring()))
2293                         return false;
2294                 break;
2295         case 1:
2296                 break;
2297         case 2:
2298                 return false;
2299         }
2300
2301         return saveBuffer(b);
2302 }
2303
2304
2305 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2306 {
2307         return closeWorkArea(wa, false);
2308 }
2309
2310
2311 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2312 {
2313         Buffer & buf = wa->bufferView().buffer();
2314         return closeWorkArea(wa, !buf.parent());
2315 }
2316
2317
2318 bool GuiView::closeBuffer()
2319 {
2320         GuiWorkArea * wa = currentMainWorkArea();
2321         setCurrentWorkArea(wa);
2322         Buffer & buf = wa->bufferView().buffer();
2323         return wa && closeWorkArea(wa, !buf.parent());
2324 }
2325
2326
2327 void GuiView::writeSession() const {
2328         GuiWorkArea const * active_wa = currentMainWorkArea();
2329         for (int i = 0; i < d.splitter_->count(); ++i) {
2330                 TabWorkArea * twa = d.tabWorkArea(i);
2331                 for (int j = 0; j < twa->count(); ++j) {
2332                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
2333                         Buffer & buf = wa->bufferView().buffer();
2334                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2335                 }
2336         }
2337 }
2338
2339
2340 bool GuiView::closeBufferAll()
2341 {
2342         // Close the workareas in all other views
2343         QList<int> const ids = guiApp->viewIds();
2344         for (int i = 0; i != ids.size(); ++i) {
2345                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2346                         return false;
2347         }
2348
2349         // Close our own workareas
2350         if (!closeWorkAreaAll())
2351                 return false;
2352
2353         // Now close the hidden buffers. We prevent hidden buffers from being
2354         // dirty, so we can just close them.
2355         theBufferList().closeAll();
2356         return true;
2357 }
2358
2359
2360 bool GuiView::closeWorkAreaAll()
2361 {
2362         setCurrentWorkArea(currentMainWorkArea());
2363
2364         // We might be in a situation that there is still a tabWorkArea, but
2365         // there are no tabs anymore. This can happen when we get here after a
2366         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2367         // many TabWorkArea's have no documents anymore.
2368         int empty_twa = 0;
2369
2370         // We have to call count() each time, because it can happen that
2371         // more than one splitter will disappear in one iteration (bug 5998).
2372         for (; d.splitter_->count() > empty_twa; ) {
2373                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2374
2375                 if (twa->count() == 0)
2376                         ++empty_twa;
2377                 else {
2378                         setCurrentWorkArea(twa->currentWorkArea());
2379                         if (!closeTabWorkArea(twa))
2380                                 return false;
2381                 }
2382         }
2383         return true;
2384 }
2385
2386
2387 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2388 {
2389         if (!wa)
2390                 return false;
2391
2392         Buffer & buf = wa->bufferView().buffer();
2393
2394         if (close_buffer && GuiViewPrivate::busyBuffers.contains(&buf)) {
2395                 Alert::warning(_("Close document "), _("Document could not be closed because it is processed by LyX."));
2396                 return false;
2397         }
2398
2399         if (close_buffer)
2400                 return closeBuffer(buf);
2401         else {
2402                 if (!inMultiTabs(wa))
2403                         if (!saveBufferIfNeeded(buf, true))
2404                                 return false;
2405                 removeWorkArea(wa);
2406                 return true;
2407         }
2408 }
2409
2410
2411 bool GuiView::closeBuffer(Buffer & buf)
2412 {
2413         // If we are in a close_event all children will be closed in some time,
2414         // so no need to do it here. This will ensure that the children end up
2415         // in the session file in the correct order. If we close the master
2416         // buffer, we can close or release the child buffers here too.
2417         if (!closing_) {
2418                 ListOfBuffers clist = buf.getChildren();
2419                 ListOfBuffers::const_iterator it = clist.begin();
2420                 ListOfBuffers::const_iterator const bend = clist.end();
2421                 for (; it != bend; ++it) {
2422                         // If a child is dirty, do not close
2423                         // without user intervention
2424                         //FIXME: should we look in other tabworkareas?
2425                         Buffer * child_buf = *it;
2426                         GuiWorkArea * child_wa = workArea(*child_buf);
2427                         if (child_wa) {
2428                                 if (!closeWorkArea(child_wa, true))
2429                                         return false;
2430                         } else
2431                                 theBufferList().releaseChild(&buf, child_buf);
2432                 }
2433         }
2434         // goto bookmark to update bookmark pit.
2435         //FIXME: we should update only the bookmarks related to this buffer!
2436         LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2437         for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2438                 guiApp->gotoBookmark(i+1, false, false);
2439
2440         if (saveBufferIfNeeded(buf, false)) {
2441                 buf.removeAutosaveFile();
2442                 theBufferList().release(&buf);
2443                 return true;
2444         }
2445         return false;
2446 }
2447
2448
2449 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2450 {
2451         while (twa == d.currentTabWorkArea()) {
2452                 twa->setCurrentIndex(twa->count()-1);
2453
2454                 GuiWorkArea * wa = twa->currentWorkArea();
2455                 Buffer & b = wa->bufferView().buffer();
2456
2457                 // We only want to close the buffer if the same buffer is not visible
2458                 // in another view, and if this is not a child and if we are closing
2459                 // a view (not a tabgroup).
2460                 bool const close_buffer =
2461                         !inMultiViews(wa) && !b.parent() && closing_;
2462
2463                 if (!closeWorkArea(wa, close_buffer))
2464                         return false;
2465         }
2466         return true;
2467 }
2468
2469
2470 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2471 {
2472         if (buf.isClean() || buf.paragraphs().empty())
2473                 return true;
2474
2475         // Switch to this Buffer.
2476         setBuffer(&buf);
2477
2478         docstring file;
2479         // FIXME: Unicode?
2480         if (buf.isUnnamed())
2481                 file = from_utf8(buf.fileName().onlyFileName());
2482         else
2483                 file = buf.fileName().displayName(30);
2484
2485         // Bring this window to top before asking questions.
2486         raise();
2487         activateWindow();
2488
2489         int ret;
2490         if (hiding && buf.isUnnamed()) {
2491                 docstring const text = bformat(_("The document %1$s has not been "
2492                                                  "saved yet.\n\nDo you want to save "
2493                                                  "the document?"), file);
2494                 ret = Alert::prompt(_("Save new document?"),
2495                         text, 0, 1, _("&Save"), _("&Cancel"));
2496                 if (ret == 1)
2497                         ++ret;
2498         } else {
2499                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2500                         "\n\nDo you want to save the document or discard the changes?"), file);
2501                 ret = Alert::prompt(_("Save changed document?"),
2502                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2503         }
2504
2505         switch (ret) {
2506         case 0:
2507                 if (!saveBuffer(buf))
2508                         return false;
2509                 break;
2510         case 1:
2511                 // if we crash after this we could
2512                 // have no autosave file but I guess
2513                 // this is really improbable (Jug)
2514                 // Sometime improbable things happen, bug 6857 (ps)
2515                 // buf.removeAutosaveFile();
2516                 if (hiding)
2517                         // revert all changes
2518                         reloadBuffer(buf);
2519                 buf.markClean();
2520                 break;
2521         case 2:
2522                 return false;
2523         }
2524         return true;
2525 }
2526
2527
2528 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2529 {
2530         Buffer & buf = wa->bufferView().buffer();
2531
2532         for (int i = 0; i != d.splitter_->count(); ++i) {
2533                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2534                 if (wa_ && wa_ != wa)
2535                         return true;
2536         }
2537         return inMultiViews(wa);
2538 }
2539
2540
2541 bool GuiView::inMultiViews(GuiWorkArea * wa)
2542 {
2543         QList<int> const ids = guiApp->viewIds();
2544         Buffer & buf = wa->bufferView().buffer();
2545
2546         int found_twa = 0;
2547         for (int i = 0; i != ids.size() && found_twa <= 1; ++i) {
2548                 if (id_ == ids[i])
2549                         continue;
2550
2551                 if (guiApp->view(ids[i]).workArea(buf))
2552                         return true;
2553         }
2554         return false;
2555 }
2556
2557
2558 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np)
2559 {
2560         Buffer * const curbuf = documentBufferView()
2561                 ? &documentBufferView()->buffer() : 0;
2562         Buffer * nextbuf = curbuf;
2563         while (true) {
2564                 if (np == NEXTBUFFER)
2565                         nextbuf = theBufferList().next(nextbuf);
2566                 else
2567                         nextbuf = theBufferList().previous(nextbuf);
2568                 if (nextbuf == curbuf)
2569                         break;
2570                 if (nextbuf == 0) {
2571                         nextbuf = curbuf;
2572                         break;
2573                 }
2574                 if (workArea(*nextbuf))
2575                         break;
2576         }
2577         setBuffer(nextbuf);
2578 }
2579
2580
2581 /// make sure the document is saved
2582 static bool ensureBufferClean(Buffer * buffer)
2583 {
2584         LASSERT(buffer, return false);
2585         if (buffer->isClean() && !buffer->isUnnamed())
2586                 return true;
2587
2588         docstring const file = buffer->fileName().displayName(30);
2589         docstring title;
2590         docstring text;
2591         if (!buffer->isUnnamed()) {
2592                 text = bformat(_("The document %1$s has unsaved "
2593                                                  "changes.\n\nDo you want to save "
2594                                                  "the document?"), file);
2595                 title = _("Save changed document?");
2596
2597         } else {
2598                 text = bformat(_("The document %1$s has not been "
2599                                                  "saved yet.\n\nDo you want to save "
2600                                                  "the document?"), file);
2601                 title = _("Save new document?");
2602         }
2603         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
2604
2605         if (ret == 0)
2606                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
2607
2608         return buffer->isClean() && !buffer->isUnnamed();
2609 }
2610
2611
2612 bool GuiView::reloadBuffer(Buffer & buf)
2613 {
2614         Buffer::ReadStatus status = buf.reload();
2615         return status == Buffer::ReadSuccess;
2616 }
2617
2618
2619 void GuiView::checkExternallyModifiedBuffers()
2620 {
2621         BufferList::iterator bit = theBufferList().begin();
2622         BufferList::iterator const bend = theBufferList().end();
2623         for (; bit != bend; ++bit) {
2624                 Buffer * buf = *bit;
2625                 if (buf->fileName().exists()
2626                         && buf->isExternallyModified(Buffer::checksum_method)) {
2627                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
2628                                         " Reload now? Any local changes will be lost."),
2629                                         from_utf8(buf->absFileName()));
2630                         int const ret = Alert::prompt(_("Reload externally changed document?"),
2631                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
2632                         if (!ret)
2633                                 reloadBuffer(*buf);
2634                 }
2635         }
2636 }
2637
2638
2639 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
2640 {
2641         Buffer * buffer = documentBufferView()
2642                 ? &(documentBufferView()->buffer()) : 0;
2643
2644         switch (cmd.action()) {
2645         case LFUN_VC_REGISTER:
2646                 if (!buffer || !ensureBufferClean(buffer))
2647                         break;
2648                 if (!buffer->lyxvc().inUse()) {
2649                         if (buffer->lyxvc().registrer()) {
2650                                 reloadBuffer(*buffer);
2651                                 dr.suppressMessageUpdate();
2652                         }
2653                 }
2654                 break;
2655
2656         case LFUN_VC_CHECK_IN:
2657                 if (!buffer || !ensureBufferClean(buffer))
2658                         break;
2659                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
2660                         dr.setMessage(buffer->lyxvc().checkIn());
2661                         if (!dr.message().empty())
2662                                 reloadBuffer(*buffer);
2663                 }
2664                 break;
2665
2666         case LFUN_VC_CHECK_OUT:
2667                 if (!buffer || !ensureBufferClean(buffer))
2668                         break;
2669                 if (buffer->lyxvc().inUse()) {
2670                         dr.setMessage(buffer->lyxvc().checkOut());
2671                         reloadBuffer(*buffer);
2672                 }
2673                 break;
2674
2675         case LFUN_VC_LOCKING_TOGGLE:
2676                 LASSERT(buffer, return);
2677                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
2678                         break;
2679                 if (buffer->lyxvc().inUse()) {
2680                         string res = buffer->lyxvc().lockingToggle();
2681                         if (res.empty()) {
2682                                 frontend::Alert::error(_("Revision control error."),
2683                                 _("Error when setting the locking property."));
2684                         } else {
2685                                 dr.setMessage(res);
2686                                 reloadBuffer(*buffer);
2687                         }
2688                 }
2689                 break;
2690
2691         case LFUN_VC_REVERT:
2692                 LASSERT(buffer, return);
2693                 buffer->lyxvc().revert();
2694                 reloadBuffer(*buffer);
2695                 dr.suppressMessageUpdate();
2696                 break;
2697
2698         case LFUN_VC_UNDO_LAST:
2699                 LASSERT(buffer, return);
2700                 buffer->lyxvc().undoLast();
2701                 reloadBuffer(*buffer);
2702                 dr.suppressMessageUpdate();
2703                 break;
2704
2705         case LFUN_VC_REPO_UPDATE:
2706                 LASSERT(buffer, return);
2707                 if (ensureBufferClean(buffer)) {
2708                         dr.setMessage(buffer->lyxvc().repoUpdate());
2709                         checkExternallyModifiedBuffers();
2710                 }
2711                 break;
2712
2713         case LFUN_VC_COMMAND: {
2714                 string flag = cmd.getArg(0);
2715                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
2716                         break;
2717                 docstring message;
2718                 if (contains(flag, 'M')) {
2719                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
2720                                 break;
2721                 }
2722                 string path = cmd.getArg(1);
2723                 if (contains(path, "$$p") && buffer)
2724                         path = subst(path, "$$p", buffer->filePath());
2725                 LYXERR(Debug::LYXVC, "Directory: " << path);
2726                 FileName pp(path);
2727                 if (!pp.isReadableDirectory()) {
2728                         lyxerr << _("Directory is not accessible.") << endl;
2729                         break;
2730                 }
2731                 support::PathChanger p(pp);
2732
2733                 string command = cmd.getArg(2);
2734                 if (command.empty())
2735                         break;
2736                 if (buffer) {
2737                         command = subst(command, "$$i", buffer->absFileName());
2738                         command = subst(command, "$$p", buffer->filePath());
2739                 }
2740                 command = subst(command, "$$m", to_utf8(message));
2741                 LYXERR(Debug::LYXVC, "Command: " << command);
2742                 Systemcall one;
2743                 one.startscript(Systemcall::Wait, command);
2744
2745                 if (!buffer)
2746                         break;
2747                 if (contains(flag, 'I'))
2748                         buffer->markDirty();
2749                 if (contains(flag, 'R'))
2750                         reloadBuffer(*buffer);
2751
2752                 break;
2753                 }
2754
2755         case LFUN_VC_COMPARE: {
2756
2757                 if (cmd.argument().empty()) {
2758                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
2759                         break;
2760                 }
2761
2762                 string rev1 = cmd.getArg(0);
2763                 string f1, f2;
2764
2765                 // f1
2766                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
2767                         break;
2768
2769                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
2770                         f2 = buffer->absFileName();
2771                 } else {
2772                         string rev2 = cmd.getArg(1);
2773                         if (rev2.empty())
2774                                 break;
2775                         // f2
2776                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
2777                                 break;
2778                 }
2779
2780                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
2781                                         f1 << "\n"  << f2 << "\n" );
2782                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
2783                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
2784                 break;
2785         }
2786
2787         default:
2788                 break;
2789         }
2790 }
2791
2792
2793 void GuiView::openChildDocument(string const & fname)
2794 {
2795         LASSERT(documentBufferView(), return);
2796         Buffer & buffer = documentBufferView()->buffer();
2797         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
2798         documentBufferView()->saveBookmark(false);
2799         Buffer * child = 0;
2800         if (theBufferList().exists(filename)) {
2801                 child = theBufferList().getBuffer(filename);
2802                 setBuffer(child);
2803         } else {
2804                 message(bformat(_("Opening child document %1$s..."),
2805                         makeDisplayPath(filename.absFileName())));
2806                 child = loadDocument(filename, false);
2807         }
2808         // Set the parent name of the child document.
2809         // This makes insertion of citations and references in the child work,
2810         // when the target is in the parent or another child document.
2811         if (child)
2812                 child->setParent(&buffer);
2813 }
2814
2815
2816 bool GuiView::goToFileRow(string const & argument)
2817 {
2818         string file_name;
2819         int row;
2820         size_t i = argument.find_last_of(' ');
2821         if (i != string::npos) {
2822                 file_name = os::internal_path(trim(argument.substr(0, i)));
2823                 istringstream is(argument.substr(i + 1));
2824                 is >> row;
2825                 if (is.fail())
2826                         i = string::npos;
2827         }
2828         if (i == string::npos) {
2829                 LYXERR0("Wrong argument: " << argument);
2830                 return false;
2831         }
2832         Buffer * buf = 0;
2833         string const abstmp = package().temp_dir().absFileName();
2834         string const realtmp = package().temp_dir().realPath();
2835         // We have to use os::path_prefix_is() here, instead of
2836         // simply prefixIs(), because the file name comes from
2837         // an external application and may need case adjustment.
2838         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
2839                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
2840                 // Needed by inverse dvi search. If it is a file
2841                 // in tmpdir, call the apropriated function.
2842                 // If tmpdir is a symlink, we may have the real
2843                 // path passed back, so we correct for that.
2844                 if (!prefixIs(file_name, abstmp))
2845                         file_name = subst(file_name, realtmp, abstmp);
2846                 buf = theBufferList().getBufferFromTmp(file_name);
2847         } else {
2848                 // Must replace extension of the file to be .lyx
2849                 // and get full path
2850                 FileName const s = fileSearch(string(),
2851                                                   support::changeExtension(file_name, ".lyx"), "lyx");
2852                 // Either change buffer or load the file
2853                 if (theBufferList().exists(s))
2854                         buf = theBufferList().getBuffer(s);
2855                 else if (s.exists()) {
2856                         buf = loadDocument(s);
2857                         if (!buf)
2858                                 return false;
2859                 } else {
2860                         message(bformat(
2861                                         _("File does not exist: %1$s"),
2862                                         makeDisplayPath(file_name)));
2863                         return false;
2864                 }
2865         }
2866         setBuffer(buf);
2867         documentBufferView()->setCursorFromRow(row);
2868         return true;
2869 }
2870
2871
2872 #if (QT_VERSION >= 0x040400)
2873 template<class T>
2874 docstring GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format, string const & msg)
2875 {
2876         bool const update_unincluded =
2877                                 buffer->params().maintain_unincluded_children
2878                                 && !buffer->params().getIncludedChildren().empty();
2879         bool const success = func(format, update_unincluded);
2880         delete buffer;
2881         busyBuffers.remove(orig);
2882         return success
2883                 ? bformat(_("Successful " + msg + " to format: %1$s"), from_utf8(format))
2884                 : bformat(_("Error " + msg + " format: %1$s"), from_utf8(format));
2885 }
2886
2887 docstring GuiView::GuiViewPrivate::compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2888 {
2889         bool (Buffer::* mem_func)(std::string const &, bool, bool) const = &Buffer::doExport;
2890         return runAndDestroy(bind(mem_func, buffer, _1, true, _2), orig, buffer, format, "export");
2891 }
2892
2893 docstring GuiView::GuiViewPrivate::exportAndDestroy(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, false, _2), orig, buffer, format, "export");
2897
2898 }
2899
2900 docstring GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2901 {
2902         bool(Buffer::* mem_func)(std::string const &, bool) const = &Buffer::preview;
2903         return runAndDestroy(bind(mem_func, buffer, _1, _2), orig, buffer, format, "preview");
2904 }
2905 #endif
2906
2907
2908 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
2909                            string const & argument,
2910                            Buffer const * used_buffer,
2911                            docstring const & msg,
2912                            docstring (*asyncFunc)(Buffer const *, Buffer *, string const &),
2913                            bool (Buffer::*syncFunc)(string const &, bool, bool) const,
2914                            bool (Buffer::*previewFunc)(string const &, bool) const)
2915 {
2916         if (!used_buffer) {
2917                 return false;
2918         }
2919         gv_->processingThreadStarted();
2920         string format = argument;
2921         if (format.empty()) {
2922                 format = used_buffer->getDefaultOutputFormat();
2923         }
2924 #if EXPORT_in_THREAD && (QT_VERSION >= 0x040400)
2925         if (!msg.empty()) {
2926                 progress_->clearMessages();
2927                 gv_->message(msg);
2928         }
2929         GuiViewPrivate::busyBuffers.insert(used_buffer);
2930         QFuture<docstring> f = QtConcurrent::run(
2931                                 asyncFunc,
2932                                 used_buffer,
2933                                 used_buffer->clone(),
2934                                 format);
2935         setPreviewFuture(f);
2936         last_export_format = used_buffer->bufferFormat();
2937         (void) syncFunc;
2938         (void) previewFunc;
2939         // We are asynchronous, so we don't know here anything about the success
2940         return true;
2941 #else
2942         bool const update_unincluded =
2943                 used_buffer->params().maintain_unincluded_children &&
2944                 !used_buffer->params().getIncludedChildren().empty();
2945         if (syncFunc) {
2946                 return (used_buffer->*syncFunc)(format, true, update_unincluded);
2947         } else if (previewFunc) {
2948                 return (used_buffer->*previewFunc)(format, update_unincluded);
2949         }
2950         (void) asyncFunc;
2951         return false;
2952 #endif
2953 }
2954
2955 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
2956 {
2957         BufferView * bv = currentBufferView();
2958         // By default we won't need any update.
2959         dr.screenUpdate(Update::None);
2960         // assume cmd will be dispatched
2961         dr.dispatched(true);
2962
2963         Buffer * doc_buffer = documentBufferView()
2964                 ? &(documentBufferView()->buffer()) : 0;
2965
2966         if (cmd.origin() == FuncRequest::TOC) {
2967                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
2968                 // FIXME: do we need to pass a DispatchResult object here?
2969                 toc->doDispatch(bv->cursor(), cmd);
2970                 return;
2971         }
2972
2973         string const argument = to_utf8(cmd.argument());
2974
2975         switch(cmd.action()) {
2976                 case LFUN_BUFFER_CHILD_OPEN:
2977                         openChildDocument(to_utf8(cmd.argument()));
2978                         break;
2979
2980                 case LFUN_BUFFER_IMPORT:
2981                         importDocument(to_utf8(cmd.argument()));
2982                         break;
2983
2984                 case LFUN_BUFFER_EXPORT: {
2985                         if (!doc_buffer)
2986                                 break;
2987                         // GCC only sees strfwd.h when building merged
2988                         if (::lyx::operator==(cmd.argument(), "custom")) {
2989                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
2990                                 break;
2991                         }
2992 #if 0
2993                         // TODO Remove if we could export asynchronous
2994                         if (!doc_buffer->doExport(argument, false)) {
2995                                 dr.setError(true);
2996                                 dr.setMessage(bformat(_("Error exporting to format: %1$s."),
2997                                         cmd.argument()));
2998                         }
2999 #else
3000                         /* TODO/Review: Is it a problem to also export the children?
3001                                         See the update_unincluded flag */
3002                         d.asyncBufferProcessing(argument,
3003                                                 doc_buffer,
3004                                                 _("Exporting ..."),
3005                                                 &GuiViewPrivate::exportAndDestroy,
3006                                                 &Buffer::doExport,
3007                                                 0);
3008                         // TODO Inform user about success
3009 #endif
3010                         break;
3011                 }
3012
3013                 case LFUN_BUFFER_UPDATE: {
3014                         d.asyncBufferProcessing(argument,
3015                                                 doc_buffer,
3016                                                 _("Exporting ..."),
3017                                                 &GuiViewPrivate::compileAndDestroy,
3018                                                 &Buffer::doExport,
3019                                                 0);
3020                         break;
3021                 }
3022                 case LFUN_BUFFER_VIEW: {
3023                         d.asyncBufferProcessing(argument,
3024                                                 doc_buffer,
3025                                                 _("Previewing ..."),
3026                                                 &GuiViewPrivate::previewAndDestroy,
3027                                                 0,
3028                                                 &Buffer::preview);
3029                         break;
3030                 }
3031                 case LFUN_MASTER_BUFFER_UPDATE: {
3032                         d.asyncBufferProcessing(argument,
3033                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3034                                                 docstring(),
3035                                                 &GuiViewPrivate::compileAndDestroy,
3036                                                 &Buffer::doExport,
3037                                                 0);
3038                         break;
3039                 }
3040                 case LFUN_MASTER_BUFFER_VIEW: {
3041                         d.asyncBufferProcessing(argument,
3042                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3043                                                 docstring(),
3044                                                 &GuiViewPrivate::previewAndDestroy,
3045                                                 0, &Buffer::preview);
3046                         break;
3047                 }
3048                 case LFUN_BUFFER_SWITCH: {
3049                         string const file_name = to_utf8(cmd.argument());
3050                         if (!FileName::isAbsolute(file_name)) {
3051                                 dr.setError(true);
3052                                 dr.setMessage(_("Absolute filename expected."));
3053                                 break;
3054                         }
3055
3056                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3057                         if (!buffer) {
3058                                 dr.setError(true);
3059                                 dr.setMessage(_("Document not loaded"));
3060                                 break;
3061                         }
3062
3063                         // Do we open or switch to the buffer in this view ?
3064                         if (workArea(*buffer)
3065                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3066                                 setBuffer(buffer);
3067                                 break;
3068                         }
3069
3070                         // Look for the buffer in other views
3071                         QList<int> const ids = guiApp->viewIds();
3072                         int i = 0;
3073                         for (; i != ids.size(); ++i) {
3074                                 GuiView & gv = guiApp->view(ids[i]);
3075                                 if (gv.workArea(*buffer)) {
3076                                         gv.activateWindow();
3077                                         gv.setBuffer(buffer);
3078                                         break;
3079                                 }
3080                         }
3081
3082                         // If necessary, open a new window as a last resort
3083                         if (i == ids.size()) {
3084                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3085                                 lyx::dispatch(cmd);
3086                         }
3087                         break;
3088                 }
3089
3090                 case LFUN_BUFFER_NEXT:
3091                         gotoNextOrPreviousBuffer(NEXTBUFFER);
3092                         break;
3093
3094                 case LFUN_BUFFER_PREVIOUS:
3095                         gotoNextOrPreviousBuffer(PREVBUFFER);
3096                         break;
3097
3098                 case LFUN_COMMAND_EXECUTE: {
3099                         bool const show_it = cmd.argument() != "off";
3100                         // FIXME: this is a hack, "minibuffer" should not be
3101                         // hardcoded.
3102                         if (GuiToolbar * t = toolbar("minibuffer")) {
3103                                 t->setVisible(show_it);
3104                                 if (show_it && t->commandBuffer())
3105                                         t->commandBuffer()->setFocus();
3106                         }
3107                         break;
3108                 }
3109                 case LFUN_DROP_LAYOUTS_CHOICE:
3110                         d.layout_->showPopup();
3111                         break;
3112
3113                 case LFUN_MENU_OPEN:
3114                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3115                                 menu->exec(QCursor::pos());
3116                         break;
3117
3118                 case LFUN_FILE_INSERT:
3119                         insertLyXFile(cmd.argument());
3120                         break;
3121
3122                 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
3123                         insertPlaintextFile(cmd.argument(), true);
3124                         break;
3125
3126                 case LFUN_FILE_INSERT_PLAINTEXT:
3127                         insertPlaintextFile(cmd.argument(), false);
3128                         break;
3129
3130                 case LFUN_BUFFER_RELOAD: {
3131                         LASSERT(doc_buffer, break);
3132
3133                         int ret = 0;
3134                         if (!doc_buffer->isClean()) {
3135                                 docstring const file =
3136                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3137                                 docstring text = bformat(_("Any changes will be lost. "
3138                                         "Are you sure you want to revert to the saved version "
3139                                         "of the document %1$s?"), file);
3140                                 ret = Alert::prompt(_("Revert to saved document?"),
3141                                         text, 1, 1, _("&Revert"), _("&Cancel"));
3142                         }
3143
3144                         if (ret == 0) {
3145                                 doc_buffer->markClean();
3146                                 reloadBuffer(*doc_buffer);
3147                                 dr.forceBufferUpdate();
3148                         }
3149                         break;
3150                 }
3151
3152                 case LFUN_BUFFER_WRITE:
3153                         LASSERT(doc_buffer, break);
3154                         saveBuffer(*doc_buffer);
3155                         break;
3156
3157                 case LFUN_BUFFER_WRITE_AS:
3158                         LASSERT(doc_buffer, break);
3159                         renameBuffer(*doc_buffer, cmd.argument());
3160                         break;
3161
3162                 case LFUN_BUFFER_WRITE_ALL: {
3163                         Buffer * first = theBufferList().first();
3164                         if (!first)
3165                                 break;
3166                         message(_("Saving all documents..."));
3167                         // We cannot use a for loop as the buffer list cycles.
3168                         Buffer * b = first;
3169                         do {
3170                                 if (!b->isClean()) {
3171                                         saveBuffer(*b);
3172                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3173                                 }
3174                                 b = theBufferList().next(b);
3175                         } while (b != first);
3176                         dr.setMessage(_("All documents saved."));
3177                         break;
3178                 }
3179
3180                 case LFUN_BUFFER_CLOSE:
3181                         closeBuffer();
3182                         break;
3183
3184                 case LFUN_BUFFER_CLOSE_ALL:
3185                         closeBufferAll();
3186                         break;
3187
3188                 case LFUN_TOOLBAR_TOGGLE: {
3189                         string const name = cmd.getArg(0);
3190                         if (GuiToolbar * t = toolbar(name))
3191                                 t->toggle();
3192                         break;
3193                 }
3194
3195                 case LFUN_DIALOG_UPDATE: {
3196                         string const name = to_utf8(cmd.argument());
3197                         if (name == "prefs" || name == "document")
3198                                 updateDialog(name, string());
3199                         else if (name == "paragraph")
3200                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3201                         else if (currentBufferView()) {
3202                                 Inset * inset = currentBufferView()->editedInset(name);
3203                                 // Can only update a dialog connected to an existing inset
3204                                 if (inset) {
3205                                         // FIXME: get rid of this indirection; GuiView ask the inset
3206                                         // if he is kind enough to update itself...
3207                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3208                                         //FIXME: pass DispatchResult here?
3209                                         inset->dispatch(currentBufferView()->cursor(), fr);
3210                                 }
3211                         }
3212                         break;
3213                 }
3214
3215                 case LFUN_DIALOG_TOGGLE: {
3216                         if (isDialogVisible(cmd.getArg(0)))
3217                                 dispatch(FuncRequest(LFUN_DIALOG_HIDE, cmd.argument()), dr);
3218                         else
3219                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, cmd.argument()), dr);
3220                         break;
3221                 }
3222
3223                 case LFUN_DIALOG_DISCONNECT_INSET:
3224                         disconnectDialog(to_utf8(cmd.argument()));
3225                         break;
3226
3227                 case LFUN_DIALOG_HIDE: {
3228                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3229                         break;
3230                 }
3231
3232                 case LFUN_DIALOG_SHOW: {
3233                         string const name = cmd.getArg(0);
3234                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3235
3236                         if (name == "character") {
3237                                 data = freefont2string();
3238                                 if (!data.empty())
3239                                         showDialog("character", data);
3240                         } else if (name == "latexlog") {
3241                                 Buffer::LogType type;
3242                                 string const logfile = doc_buffer->logName(&type);
3243                                 switch (type) {
3244                                 case Buffer::latexlog:
3245                                         data = "latex ";
3246                                         break;
3247                                 case Buffer::buildlog:
3248                                         data = "literate ";
3249                                         break;
3250                                 }
3251                                 data += Lexer::quoteString(logfile);
3252                                 showDialog("log", data);
3253                         } else if (name == "vclog") {
3254                                 string const data = "vc " +
3255                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3256                                 showDialog("log", data);
3257                         } else if (name == "symbols") {
3258                                 data = bv->cursor().getEncoding()->name();
3259                                 if (!data.empty())
3260                                         showDialog("symbols", data);
3261                         // bug 5274
3262                         } else if (name == "prefs" && isFullScreen()) {
3263                                 lfunUiToggle("fullscreen");
3264                                 showDialog("prefs", data);
3265                         } else
3266                                 showDialog(name, data);
3267                         break;
3268                 }
3269
3270                 case LFUN_MESSAGE:
3271                         dr.setMessage(cmd.argument());
3272                         break;
3273
3274                 case LFUN_UI_TOGGLE: {
3275                         string arg = cmd.getArg(0);
3276                         if (!lfunUiToggle(arg)) {
3277                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3278                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3279                         }
3280                         // Make sure the keyboard focus stays in the work area.
3281                         setFocus();
3282                         break;
3283                 }
3284
3285                 case LFUN_SPLIT_VIEW: {
3286                         LASSERT(doc_buffer, break);
3287                         string const orientation = cmd.getArg(0);
3288                         d.splitter_->setOrientation(orientation == "vertical"
3289                                 ? Qt::Vertical : Qt::Horizontal);
3290                         TabWorkArea * twa = addTabWorkArea();
3291                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3292                         setCurrentWorkArea(wa);
3293                         break;
3294                 }
3295                 case LFUN_CLOSE_TAB_GROUP:
3296                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3297                                 closeTabWorkArea(twa);
3298                                 d.current_work_area_ = 0;
3299                                 twa = d.currentTabWorkArea();
3300                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3301                                 if (twa) {
3302                                         // Make sure the work area is up to date.
3303                                         setCurrentWorkArea(twa->currentWorkArea());
3304                                 } else {
3305                                         setCurrentWorkArea(0);
3306                                 }
3307                         }
3308                         break;
3309
3310                 case LFUN_COMPLETION_INLINE:
3311                         if (d.current_work_area_)
3312                                 d.current_work_area_->completer().showInline();
3313                         break;
3314
3315                 case LFUN_COMPLETION_POPUP:
3316                         if (d.current_work_area_)
3317                                 d.current_work_area_->completer().showPopup();
3318                         break;
3319
3320
3321                 case LFUN_COMPLETION_COMPLETE:
3322                         if (d.current_work_area_)
3323                                 d.current_work_area_->completer().tab();
3324                         break;
3325
3326                 case LFUN_COMPLETION_CANCEL:
3327                         if (d.current_work_area_) {
3328                                 if (d.current_work_area_->completer().popupVisible())
3329                                         d.current_work_area_->completer().hidePopup();
3330                                 else
3331                                         d.current_work_area_->completer().hideInline();
3332                         }
3333                         break;
3334
3335                 case LFUN_COMPLETION_ACCEPT:
3336                         if (d.current_work_area_)
3337                                 d.current_work_area_->completer().activate();
3338                         break;
3339
3340                 case LFUN_BUFFER_ZOOM_IN:
3341                 case LFUN_BUFFER_ZOOM_OUT:
3342                         if (cmd.argument().empty()) {
3343                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3344                                         lyxrc.zoom += 20;
3345                                 else
3346                                         lyxrc.zoom -= 20;
3347                         } else
3348                                 lyxrc.zoom += convert<int>(cmd.argument());
3349
3350                         if (lyxrc.zoom < 10)
3351                                 lyxrc.zoom = 10;
3352
3353                         // The global QPixmapCache is used in GuiPainter to cache text
3354                         // painting so we must reset it.
3355                         QPixmapCache::clear();
3356                         guiApp->fontLoader().update();
3357                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3358                         break;
3359
3360                 case LFUN_VC_REGISTER:
3361                 case LFUN_VC_CHECK_IN:
3362                 case LFUN_VC_CHECK_OUT:
3363                 case LFUN_VC_REPO_UPDATE:
3364                 case LFUN_VC_LOCKING_TOGGLE:
3365                 case LFUN_VC_REVERT:
3366                 case LFUN_VC_UNDO_LAST:
3367                 case LFUN_VC_COMMAND:
3368                 case LFUN_VC_COMPARE:
3369                         dispatchVC(cmd, dr);
3370                         break;
3371
3372                 case LFUN_SERVER_GOTO_FILE_ROW:
3373                         goToFileRow(to_utf8(cmd.argument()));
3374                         break;
3375
3376                 case LFUN_FORWARD_SEARCH: {
3377                         FileName const path(doc_buffer->temppath());
3378                         string const texname = doc_buffer->latexName();
3379                         FileName const dviname(addName(path.absFileName(),
3380                                     support::changeExtension(texname, "dvi")));
3381                         FileName const pdfname(addName(path.absFileName(),
3382                                     support::changeExtension(texname, "pdf")));
3383                         if (!dviname.exists() && !pdfname.exists()) {
3384                                 dr.setMessage(_("Please, preview the document first."));
3385                                 break;
3386                         }
3387                         string outname = dviname.onlyFileName();
3388                         string command = lyxrc.forward_search_dvi;
3389                         if (!dviname.exists() ||
3390                             pdfname.lastModified() > dviname.lastModified()) {
3391                                 outname = pdfname.onlyFileName();
3392                                 command = lyxrc.forward_search_pdf;
3393                         }
3394
3395                         int row = doc_buffer->texrow().getRowFromIdPos(bv->cursor().paragraph().id(), bv->cursor().pos());
3396                         LYXERR(Debug::ACTION, "Forward search: row:" << row
3397                                 << " id:" << bv->cursor().paragraph().id());
3398                         if (!row || command.empty()) {
3399                                 dr.setMessage(_("Couldn't proceed."));
3400                                 break;
3401                         }
3402                         string texrow = convert<string>(row);
3403
3404                         command = subst(command, "$$n", texrow);
3405                         command = subst(command, "$$t", texname);
3406                         command = subst(command, "$$o", outname);
3407
3408                         PathChanger p(path);
3409                         Systemcall one;
3410                         one.startscript(Systemcall::DontWait, command);
3411                         break;
3412                 }
3413                 default:
3414                         dr.dispatched(false);
3415                         break;
3416         }
3417
3418         // Part of automatic menu appearance feature.
3419         if (isFullScreen()) {
3420                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
3421                         menuBar()->hide();
3422                 if (statusBar()->isVisible())
3423                         statusBar()->hide();
3424         }
3425
3426         return;
3427 }
3428
3429
3430 bool GuiView::lfunUiToggle(string const & ui_component)
3431 {
3432         if (ui_component == "scrollbar") {
3433                 // hide() is of no help
3434                 if (d.current_work_area_->verticalScrollBarPolicy() ==
3435                         Qt::ScrollBarAlwaysOff)
3436
3437                         d.current_work_area_->setVerticalScrollBarPolicy(
3438                                 Qt::ScrollBarAsNeeded);
3439                 else
3440                         d.current_work_area_->setVerticalScrollBarPolicy(
3441                                 Qt::ScrollBarAlwaysOff);
3442         } else if (ui_component == "statusbar") {
3443                 statusBar()->setVisible(!statusBar()->isVisible());
3444         } else if (ui_component == "menubar") {
3445                 menuBar()->setVisible(!menuBar()->isVisible());
3446         } else
3447 #if QT_VERSION >= 0x040300
3448         if (ui_component == "frame") {
3449                 int l, t, r, b;
3450                 getContentsMargins(&l, &t, &r, &b);
3451                 //are the frames in default state?
3452                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
3453                 if (l == 0) {
3454                         setContentsMargins(-2, -2, -2, -2);
3455                 } else {
3456                         setContentsMargins(0, 0, 0, 0);
3457                 }
3458         } else
3459 #endif
3460         if (ui_component == "fullscreen") {
3461                 toggleFullScreen();
3462         } else
3463                 return false;
3464         return true;
3465 }
3466
3467
3468 void GuiView::toggleFullScreen()
3469 {
3470         if (isFullScreen()) {
3471                 for (int i = 0; i != d.splitter_->count(); ++i)
3472                         d.tabWorkArea(i)->setFullScreen(false);
3473 #if QT_VERSION >= 0x040300
3474                 setContentsMargins(0, 0, 0, 0);
3475 #endif
3476                 setWindowState(windowState() ^ Qt::WindowFullScreen);
3477                 restoreLayout();
3478                 menuBar()->show();
3479                 statusBar()->show();
3480         } else {
3481                 // bug 5274
3482                 hideDialogs("prefs", 0);
3483                 for (int i = 0; i != d.splitter_->count(); ++i)
3484                         d.tabWorkArea(i)->setFullScreen(true);
3485 #if QT_VERSION >= 0x040300
3486                 setContentsMargins(-2, -2, -2, -2);
3487 #endif
3488                 saveLayout();
3489                 setWindowState(windowState() ^ Qt::WindowFullScreen);
3490                 statusBar()->hide();
3491                 if (lyxrc.full_screen_menubar)
3492                         menuBar()->hide();
3493                 if (lyxrc.full_screen_toolbars) {
3494                         ToolbarMap::iterator end = d.toolbars_.end();
3495                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
3496                                 it->second->hide();
3497                 }
3498         }
3499
3500         // give dialogs like the TOC a chance to adapt
3501         updateDialogs();
3502 }
3503
3504
3505 Buffer const * GuiView::updateInset(Inset const * inset)
3506 {
3507         if (!inset)
3508                 return 0;
3509
3510         Buffer const * inset_buffer = &(inset->buffer());
3511
3512         for (int i = 0; i != d.splitter_->count(); ++i) {
3513                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
3514                 if (!wa)
3515                         continue;
3516                 Buffer const * buffer = &(wa->bufferView().buffer());
3517                 if (inset_buffer == buffer)
3518                         wa->scheduleRedraw();
3519         }
3520         return inset_buffer;
3521 }
3522
3523
3524 void GuiView::restartCursor()
3525 {
3526         /* When we move around, or type, it's nice to be able to see
3527          * the cursor immediately after the keypress.
3528          */
3529         if (d.current_work_area_)
3530                 d.current_work_area_->startBlinkingCursor();
3531
3532         // Take this occasion to update the other GUI elements.
3533         updateDialogs();
3534         updateStatusBar();
3535 }
3536
3537
3538 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
3539 {
3540         if (d.current_work_area_)
3541                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
3542 }
3543
3544 namespace {
3545
3546 // This list should be kept in sync with the list of insets in
3547 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
3548 // dialog should have the same name as the inset.
3549 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
3550 // docs in LyXAction.cpp.
3551
3552 char const * const dialognames[] = {
3553
3554 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
3555 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
3556 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
3557 "href", "include", "index", "index_print", "info", "listings", "label", "line",
3558 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
3559 "nomencl_print", "note", "paragraph", "phantom", "prefs", "print", "ref",
3560 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
3561 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
3562
3563 char const * const * const end_dialognames =
3564         dialognames + (sizeof(dialognames) / sizeof(char *));
3565
3566 class cmpCStr {
3567 public:
3568         cmpCStr(char const * name) : name_(name) {}
3569         bool operator()(char const * other) {
3570                 return strcmp(other, name_) == 0;
3571         }
3572 private:
3573         char const * name_;
3574 };
3575
3576
3577 bool isValidName(string const & name)
3578 {
3579         return find_if(dialognames, end_dialognames,
3580                                 cmpCStr(name.c_str())) != end_dialognames;
3581 }
3582
3583 } // namespace anon
3584
3585
3586 void GuiView::resetDialogs()
3587 {
3588         // Make sure that no LFUN uses any GuiView.
3589         guiApp->setCurrentView(0);
3590         saveLayout();
3591         menuBar()->clear();
3592         constructToolbars();
3593         guiApp->menus().fillMenuBar(menuBar(), this, false);
3594         d.layout_->updateContents(true);
3595         // Now update controls with current buffer.
3596         guiApp->setCurrentView(this);
3597         restoreLayout();
3598         restartCursor();
3599 }
3600
3601
3602 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
3603 {
3604         if (!isValidName(name))
3605                 return 0;
3606
3607         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
3608
3609         if (it != d.dialogs_.end()) {
3610                 if (hide_it)
3611                         it->second->hideView();
3612                 return it->second.get();
3613         }
3614
3615         Dialog * dialog = build(name);
3616         d.dialogs_[name].reset(dialog);
3617         if (lyxrc.allow_geometry_session)
3618                 dialog->restoreSession();
3619         if (hide_it)
3620                 dialog->hideView();
3621         return dialog;
3622 }
3623
3624
3625 void GuiView::showDialog(string const & name, string const & data,
3626         Inset * inset)
3627 {
3628         triggerShowDialog(toqstr(name), toqstr(data), inset);
3629 }
3630
3631
3632 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
3633         Inset * inset)
3634 {
3635         if (d.in_show_)
3636                 return;
3637
3638         const string name = fromqstr(qname);
3639         const string data = fromqstr(qdata);
3640
3641         d.in_show_ = true;
3642         try {
3643                 Dialog * dialog = findOrBuild(name, false);
3644                 if (dialog) {
3645                         bool const visible = dialog->isVisibleView();
3646                         dialog->showData(data);
3647                         if (inset && currentBufferView())
3648                                 currentBufferView()->editInset(name, inset);
3649                         // We only set the focus to the new dialog if it was not yet
3650                         // visible in order not to change the existing previous behaviour
3651                         if (visible) {
3652                                 // activateWindow is needed for floating dockviews
3653                                 dialog->asQWidget()->raise();
3654                                 dialog->asQWidget()->activateWindow();
3655                                 dialog->asQWidget()->setFocus();
3656                         }
3657                 }
3658         }
3659         catch (ExceptionMessage const & ex) {
3660                 d.in_show_ = false;
3661                 throw ex;
3662         }
3663         d.in_show_ = false;
3664 }
3665
3666
3667 bool GuiView::isDialogVisible(string const & name) const
3668 {
3669         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3670         if (it == d.dialogs_.end())
3671                 return false;
3672         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
3673 }
3674
3675
3676 void GuiView::hideDialog(string const & name, Inset * inset)
3677 {
3678         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3679         if (it == d.dialogs_.end())
3680                 return;
3681
3682         if (inset && currentBufferView()
3683                 && inset != currentBufferView()->editedInset(name))
3684                 return;
3685
3686         Dialog * const dialog = it->second.get();
3687         if (dialog->isVisibleView())
3688                 dialog->hideView();
3689         if (currentBufferView())
3690                 currentBufferView()->editInset(name, 0);
3691 }
3692
3693
3694 void GuiView::disconnectDialog(string const & name)
3695 {
3696         if (!isValidName(name))
3697                 return;
3698         if (currentBufferView())
3699                 currentBufferView()->editInset(name, 0);
3700 }
3701
3702
3703 void GuiView::hideAll() const
3704 {
3705         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3706         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3707
3708         for(; it != end; ++it)
3709                 it->second->hideView();
3710 }
3711
3712
3713 void GuiView::updateDialogs()
3714 {
3715         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3716         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3717
3718         for(; it != end; ++it) {
3719                 Dialog * dialog = it->second.get();
3720                 if (dialog) {
3721                         if (dialog->needBufferOpen() && !documentBufferView())
3722                                 hideDialog(fromqstr(dialog->name()), 0);
3723                         else if (dialog->isVisibleView())
3724                                 dialog->checkStatus();
3725                 }
3726         }
3727         updateToolbars();
3728         updateLayoutList();
3729 }
3730
3731 Dialog * createDialog(GuiView & lv, string const & name);
3732
3733 // will be replaced by a proper factory...
3734 Dialog * createGuiAbout(GuiView & lv);
3735 Dialog * createGuiBibtex(GuiView & lv);
3736 Dialog * createGuiChanges(GuiView & lv);
3737 Dialog * createGuiCharacter(GuiView & lv);
3738 Dialog * createGuiCitation(GuiView & lv);
3739 Dialog * createGuiCompare(GuiView & lv);
3740 Dialog * createGuiCompareHistory(GuiView & lv);
3741 Dialog * createGuiDelimiter(GuiView & lv);
3742 Dialog * createGuiDocument(GuiView & lv);
3743 Dialog * createGuiErrorList(GuiView & lv);
3744 Dialog * createGuiExternal(GuiView & lv);
3745 Dialog * createGuiGraphics(GuiView & lv);
3746 Dialog * createGuiInclude(GuiView & lv);
3747 Dialog * createGuiIndex(GuiView & lv);
3748 Dialog * createGuiListings(GuiView & lv);
3749 Dialog * createGuiLog(GuiView & lv);
3750 Dialog * createGuiMathMatrix(GuiView & lv);
3751 Dialog * createGuiNote(GuiView & lv);
3752 Dialog * createGuiParagraph(GuiView & lv);
3753 Dialog * createGuiPhantom(GuiView & lv);
3754 Dialog * createGuiPreferences(GuiView & lv);
3755 Dialog * createGuiPrint(GuiView & lv);
3756 Dialog * createGuiPrintindex(GuiView & lv);
3757 Dialog * createGuiRef(GuiView & lv);
3758 Dialog * createGuiSearch(GuiView & lv);
3759 Dialog * createGuiSearchAdv(GuiView & lv);
3760 Dialog * createGuiSendTo(GuiView & lv);
3761 Dialog * createGuiShowFile(GuiView & lv);
3762 Dialog * createGuiSpellchecker(GuiView & lv);
3763 Dialog * createGuiSymbols(GuiView & lv);
3764 Dialog * createGuiTabularCreate(GuiView & lv);
3765 Dialog * createGuiTexInfo(GuiView & lv);
3766 Dialog * createGuiToc(GuiView & lv);
3767 Dialog * createGuiThesaurus(GuiView & lv);
3768 Dialog * createGuiViewSource(GuiView & lv);
3769 Dialog * createGuiWrap(GuiView & lv);
3770 Dialog * createGuiProgressView(GuiView & lv);
3771
3772
3773
3774 Dialog * GuiView::build(string const & name)
3775 {
3776         LASSERT(isValidName(name), return 0);
3777
3778         Dialog * dialog = createDialog(*this, name);
3779         if (dialog)
3780                 return dialog;
3781
3782         if (name == "aboutlyx")
3783                 return createGuiAbout(*this);
3784         if (name == "bibtex")
3785                 return createGuiBibtex(*this);
3786         if (name == "changes")
3787                 return createGuiChanges(*this);
3788         if (name == "character")
3789                 return createGuiCharacter(*this);
3790         if (name == "citation")
3791                 return createGuiCitation(*this);
3792         if (name == "compare")
3793                 return createGuiCompare(*this);
3794         if (name == "comparehistory")
3795                 return createGuiCompareHistory(*this);
3796         if (name == "document")
3797                 return createGuiDocument(*this);
3798         if (name == "errorlist")
3799                 return createGuiErrorList(*this);
3800         if (name == "external")
3801                 return createGuiExternal(*this);
3802         if (name == "file")
3803                 return createGuiShowFile(*this);
3804         if (name == "findreplace")
3805                 return createGuiSearch(*this);
3806         if (name == "findreplaceadv")
3807                 return createGuiSearchAdv(*this);
3808         if (name == "graphics")
3809                 return createGuiGraphics(*this);
3810         if (name == "include")
3811                 return createGuiInclude(*this);
3812         if (name == "index")
3813                 return createGuiIndex(*this);
3814         if (name == "index_print")
3815                 return createGuiPrintindex(*this);
3816         if (name == "listings")
3817                 return createGuiListings(*this);
3818         if (name == "log")
3819                 return createGuiLog(*this);
3820         if (name == "mathdelimiter")
3821                 return createGuiDelimiter(*this);
3822         if (name == "mathmatrix")
3823                 return createGuiMathMatrix(*this);
3824         if (name == "note")
3825                 return createGuiNote(*this);
3826         if (name == "paragraph")
3827                 return createGuiParagraph(*this);
3828         if (name == "phantom")
3829                 return createGuiPhantom(*this);
3830         if (name == "prefs")
3831                 return createGuiPreferences(*this);
3832         if (name == "print")
3833                 return createGuiPrint(*this);
3834         if (name == "ref")
3835                 return createGuiRef(*this);
3836         if (name == "sendto")
3837                 return createGuiSendTo(*this);
3838         if (name == "spellchecker")
3839                 return createGuiSpellchecker(*this);
3840         if (name == "symbols")
3841                 return createGuiSymbols(*this);
3842         if (name == "tabularcreate")
3843                 return createGuiTabularCreate(*this);
3844         if (name == "texinfo")
3845                 return createGuiTexInfo(*this);
3846         if (name == "thesaurus")
3847                 return createGuiThesaurus(*this);
3848         if (name == "toc")
3849                 return createGuiToc(*this);
3850         if (name == "view-source")
3851                 return createGuiViewSource(*this);
3852         if (name == "wrap")
3853                 return createGuiWrap(*this);
3854         if (name == "progress")
3855                 return createGuiProgressView(*this);
3856
3857         return 0;
3858 }
3859
3860
3861 } // namespace frontend
3862 } // namespace lyx
3863
3864 #include "moc_GuiView.cpp"