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), busy_(0)
 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_ > 0;
1115 }
1116
1117
1118 void GuiView::setBusy(bool busy)
1119 {
1120         bool const busy_before = busy_ > 0;
1121         busy ? ++busy_ : --busy_;
1122         if ((busy_ > 0) == busy_before)
1123                 // busy state didn't change
1124                 return;
1125
1126         if (d.current_work_area_) {
1127                 d.current_work_area_->setUpdatesEnabled(!busy);
1128                 if (busy)
1129                         d.current_work_area_->stopBlinkingCursor();
1130                 else
1131                         d.current_work_area_->startBlinkingCursor();
1132         }
1133
1134         if (busy)
1135                 QApplication::setOverrideCursor(Qt::WaitCursor);
1136         else
1137                 QApplication::restoreOverrideCursor();
1138 }
1139
1140
1141 GuiWorkArea * GuiView::workArea(Buffer & buffer)
1142 {
1143         if (currentWorkArea()
1144                 && &currentWorkArea()->bufferView().buffer() == &buffer)
1145                 return (GuiWorkArea *) currentWorkArea();
1146         if (TabWorkArea * twa = d.currentTabWorkArea())
1147                 return twa->workArea(buffer);
1148         return 0;
1149 }
1150
1151
1152 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
1153 {
1154         // Automatically create a TabWorkArea if there are none yet.
1155         TabWorkArea * tab_widget = d.splitter_->count()
1156                 ? d.currentTabWorkArea() : addTabWorkArea();
1157         return tab_widget->addWorkArea(buffer, *this);
1158 }
1159
1160
1161 TabWorkArea * GuiView::addTabWorkArea()
1162 {
1163         TabWorkArea * twa = new TabWorkArea;
1164         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
1165                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
1166         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
1167                          this, SLOT(on_lastWorkAreaRemoved()));
1168
1169         d.splitter_->addWidget(twa);
1170         d.stack_widget_->setCurrentWidget(d.splitter_);
1171         return twa;
1172 }
1173
1174
1175 GuiWorkArea const * GuiView::currentWorkArea() const
1176 {
1177         return d.current_work_area_;
1178 }
1179
1180
1181 GuiWorkArea * GuiView::currentWorkArea()
1182 {
1183         return d.current_work_area_;
1184 }
1185
1186
1187 GuiWorkArea const * GuiView::currentMainWorkArea() const
1188 {
1189         if (!d.currentTabWorkArea())
1190                 return 0;
1191         return d.currentTabWorkArea()->currentWorkArea();
1192 }
1193
1194
1195 GuiWorkArea * GuiView::currentMainWorkArea()
1196 {
1197         if (!d.currentTabWorkArea())
1198                 return 0;
1199         return d.currentTabWorkArea()->currentWorkArea();
1200 }
1201
1202
1203 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
1204 {
1205         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
1206         if (!wa) {
1207                 d.current_work_area_ = 0;
1208                 d.setBackground();
1209                 return;
1210         }
1211
1212         // FIXME: I've no clue why this is here and why it accesses
1213         //  theGuiApp()->currentView, which might be 0 (bug 6464).
1214         //  See also 27525 (vfr).
1215         if (theGuiApp()->currentView() == this
1216                   && theGuiApp()->currentView()->currentWorkArea() == wa)
1217                 return;
1218
1219         if (currentBufferView())
1220                 cap::saveSelection(currentBufferView()->cursor());
1221
1222         theGuiApp()->setCurrentView(this);
1223         d.current_work_area_ = wa;
1224
1225         // We need to reset this now, because it will need to be
1226         // right if the tabWorkArea gets reset in the for loop. We
1227         // will change it back if we aren't in that case.
1228         GuiWorkArea * const old_cmwa = d.current_main_work_area_;
1229         d.current_main_work_area_ = wa;
1230
1231         for (int i = 0; i != d.splitter_->count(); ++i) {
1232                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
1233                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea()
1234                                 << ", Current main wa: " << currentMainWorkArea());
1235                         return;
1236                 }
1237         }
1238
1239         d.current_main_work_area_ = old_cmwa;
1240
1241         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
1242         on_currentWorkAreaChanged(wa);
1243         BufferView & bv = wa->bufferView();
1244         bv.cursor().fixIfBroken();
1245         bv.updateMetrics();
1246         wa->setUpdatesEnabled(true);
1247         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1248 }
1249
1250
1251 void GuiView::removeWorkArea(GuiWorkArea * wa)
1252 {
1253         LASSERT(wa, return);
1254         if (wa == d.current_work_area_) {
1255                 disconnectBuffer();
1256                 disconnectBufferView();
1257                 d.current_work_area_ = 0;
1258                 d.current_main_work_area_ = 0;
1259         }
1260
1261         bool found_twa = false;
1262         for (int i = 0; i != d.splitter_->count(); ++i) {
1263                 TabWorkArea * twa = d.tabWorkArea(i);
1264                 if (twa->removeWorkArea(wa)) {
1265                         // Found in this tab group, and deleted the GuiWorkArea.
1266                         found_twa = true;
1267                         if (twa->count() != 0) {
1268                                 if (d.current_work_area_ == 0)
1269                                         // This means that we are closing the current GuiWorkArea, so
1270                                         // switch to the next GuiWorkArea in the found TabWorkArea.
1271                                         setCurrentWorkArea(twa->currentWorkArea());
1272                         } else {
1273                                 // No more WorkAreas in this tab group, so delete it.
1274                                 delete twa;
1275                         }
1276                         break;
1277                 }
1278         }
1279
1280         // It is not a tabbed work area (i.e., the search work area), so it
1281         // should be deleted by other means.
1282         LASSERT(found_twa, /* */);
1283
1284         if (d.current_work_area_ == 0) {
1285                 if (d.splitter_->count() != 0) {
1286                         TabWorkArea * twa = d.currentTabWorkArea();
1287                         setCurrentWorkArea(twa->currentWorkArea());
1288                 } else {
1289                         // No more work areas, switch to the background widget.
1290                         setCurrentWorkArea(0);
1291                 }
1292         }
1293 }
1294
1295
1296 LayoutBox * GuiView::getLayoutDialog() const
1297 {
1298         return d.layout_;
1299 }
1300
1301
1302 void GuiView::updateLayoutList()
1303 {
1304         if (d.layout_)
1305                 d.layout_->updateContents(false);
1306 }
1307
1308
1309 void GuiView::updateToolbars()
1310 {
1311         ToolbarMap::iterator end = d.toolbars_.end();
1312         if (d.current_work_area_) {
1313                 bool const math =
1314                         d.current_work_area_->bufferView().cursor().inMathed()
1315                         && !d.current_work_area_->bufferView().cursor().inRegexped();
1316                 bool const table =
1317                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1318                 bool const review =
1319                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1320                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onOff(true);
1321                 bool const mathmacrotemplate =
1322                         lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled();
1323
1324                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1325                         it->second->update(math, table, review, mathmacrotemplate);
1326         } else
1327                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1328                         it->second->update(false, false, false, false);
1329 }
1330
1331
1332 void GuiView::setBuffer(Buffer * newBuffer)
1333 {
1334         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << endl);
1335         LASSERT(newBuffer, return);
1336         setBusy(true);
1337
1338         GuiWorkArea * wa = workArea(*newBuffer);
1339         if (wa == 0) {
1340                 newBuffer->masterBuffer()->updateBuffer();
1341                 wa = addWorkArea(*newBuffer);
1342                 // scroll to the position when the BufferView was last closed
1343                 if (lyxrc.use_lastfilepos) {
1344                         LastFilePosSection::FilePos filepos =
1345                                 theSession().lastFilePos().load(newBuffer->fileName());
1346                         wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1347                 }
1348         } else {
1349                 //Disconnect the old buffer...there's no new one.
1350                 disconnectBuffer();
1351         }
1352         connectBuffer(*newBuffer);
1353         connectBufferView(wa->bufferView());
1354         setCurrentWorkArea(wa);
1355
1356         setBusy(false);
1357 }
1358
1359
1360 void GuiView::connectBuffer(Buffer & buf)
1361 {
1362         buf.setGuiDelegate(this);
1363 }
1364
1365
1366 void GuiView::disconnectBuffer()
1367 {
1368         if (d.current_work_area_)
1369                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1370 }
1371
1372
1373 void GuiView::connectBufferView(BufferView & bv)
1374 {
1375         bv.setGuiDelegate(this);
1376 }
1377
1378
1379 void GuiView::disconnectBufferView()
1380 {
1381         if (d.current_work_area_)
1382                 d.current_work_area_->bufferView().setGuiDelegate(0);
1383 }
1384
1385
1386 void GuiView::errors(string const & error_type, bool from_master)
1387 {
1388         ErrorList & el = from_master ?
1389                 currentBufferView()->buffer().masterBuffer()->errorList(error_type)
1390                 : currentBufferView()->buffer().errorList(error_type);
1391         string data = error_type;
1392         if (from_master)
1393                 data = "from_master|" + error_type;
1394         if (!el.empty())
1395                 showDialog("errorlist", data);
1396 }
1397
1398
1399 void GuiView::updateTocItem(string const & type, DocIterator const & dit)
1400 {
1401         d.toc_models_.updateItem(toqstr(type), dit);
1402 }
1403
1404
1405 void GuiView::structureChanged()
1406 {
1407         d.toc_models_.reset(documentBufferView());
1408         // Navigator needs more than a simple update in this case. It needs to be
1409         // rebuilt.
1410         updateDialog("toc", "");
1411 }
1412
1413
1414 void GuiView::updateDialog(string const & name, string const & data)
1415 {
1416         if (!isDialogVisible(name))
1417                 return;
1418
1419         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1420         if (it == d.dialogs_.end())
1421                 return;
1422
1423         Dialog * const dialog = it->second.get();
1424         if (dialog->isVisibleView())
1425                 dialog->initialiseParams(data);
1426 }
1427
1428
1429 BufferView * GuiView::documentBufferView()
1430 {
1431         return currentMainWorkArea()
1432                 ? &currentMainWorkArea()->bufferView()
1433                 : 0;
1434 }
1435
1436
1437 BufferView const * GuiView::documentBufferView() const
1438 {
1439         return currentMainWorkArea()
1440                 ? &currentMainWorkArea()->bufferView()
1441                 : 0;
1442 }
1443
1444
1445 BufferView * GuiView::currentBufferView()
1446 {
1447         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1448 }
1449
1450
1451 BufferView const * GuiView::currentBufferView() const
1452 {
1453         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1454 }
1455
1456
1457 #if (QT_VERSION >= 0x040400)
1458 docstring GuiView::GuiViewPrivate::saveAndDestroy(Buffer const * orig, Buffer * buffer, FileName const & fname)
1459 {
1460         bool failed = true;
1461         FileName const tmp_ret = FileName::tempName("lyxauto");
1462         if (!tmp_ret.empty()) {
1463                 if (buffer->writeFile(tmp_ret))
1464                         failed = !tmp_ret.moveTo(fname);
1465         }
1466         if (failed) {
1467                 // failed to write/rename tmp_ret so try writing direct
1468                 failed = buffer->writeFile(fname);
1469         }
1470         delete buffer;
1471         busyBuffers.remove(orig);
1472         return failed
1473                 ? _("Automatic save failed!")
1474                 : _("Automatic save done.");
1475 }
1476 #endif
1477
1478
1479 void GuiView::autoSave()
1480 {
1481         LYXERR(Debug::INFO, "Running autoSave()");
1482
1483         Buffer * buffer = documentBufferView()
1484                 ? &documentBufferView()->buffer() : 0;
1485         if (!buffer)
1486                 return;
1487
1488 #if (QT_VERSION >= 0x040400)
1489         GuiViewPrivate::busyBuffers.insert(buffer);
1490         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::saveAndDestroy, buffer, buffer->clone(),
1491                 buffer->getAutosaveFileName());
1492         d.autosave_watcher_.setFuture(f);
1493 #else
1494         buffer->autoSave();
1495 #endif
1496 }
1497
1498
1499 void GuiView::resetAutosaveTimers()
1500 {
1501         if (lyxrc.autosave)
1502                 d.autosave_timeout_.restart();
1503 }
1504
1505
1506 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1507 {
1508         bool enable = true;
1509         Buffer * buf = currentBufferView()
1510                 ? &currentBufferView()->buffer() : 0;
1511         Buffer * doc_buffer = documentBufferView()
1512                 ? &(documentBufferView()->buffer()) : 0;
1513
1514         // Check whether we need a buffer
1515         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
1516                 // no, exit directly
1517                 flag.message(from_utf8(N_("Command not allowed with"
1518                                         "out any document open")));
1519                 flag.setEnabled(false);
1520                 return true;
1521         }
1522
1523         if (cmd.origin() == FuncRequest::TOC) {
1524                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1525                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
1526                         flag.setEnabled(false);
1527                 return true;
1528         }
1529
1530         switch(cmd.action()) {
1531         case LFUN_BUFFER_IMPORT:
1532                 break;
1533
1534         case LFUN_MASTER_BUFFER_UPDATE:
1535         case LFUN_MASTER_BUFFER_VIEW:
1536                 enable = doc_buffer && doc_buffer->parent() != 0
1537                         && !d.processing_thread_watcher_.isRunning();
1538                 break;
1539
1540         case LFUN_BUFFER_UPDATE:
1541         case LFUN_BUFFER_VIEW: {
1542                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
1543                         enable = false;
1544                         break;
1545                 }
1546                 string format = to_utf8(cmd.argument());
1547                 if (cmd.argument().empty())
1548                         format = doc_buffer->getDefaultOutputFormat();
1549                 enable = doc_buffer->isExportableFormat(format);
1550                 break;
1551         }
1552
1553         case LFUN_BUFFER_RELOAD:
1554                 enable = doc_buffer && !doc_buffer->isUnnamed()
1555                         && doc_buffer->fileName().exists()
1556                         && (!doc_buffer->isClean()
1557                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1558                 break;
1559
1560         case LFUN_BUFFER_CHILD_OPEN:
1561                 enable = doc_buffer;
1562                 break;
1563
1564         case LFUN_BUFFER_WRITE:
1565                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1566                 break;
1567
1568         //FIXME: This LFUN should be moved to GuiApplication.
1569         case LFUN_BUFFER_WRITE_ALL: {
1570                 // We enable the command only if there are some modified buffers
1571                 Buffer * first = theBufferList().first();
1572                 enable = false;
1573                 if (!first)
1574                         break;
1575                 Buffer * b = first;
1576                 // We cannot use a for loop as the buffer list is a cycle.
1577                 do {
1578                         if (!b->isClean()) {
1579                                 enable = true;
1580                                 break;
1581                         }
1582                         b = theBufferList().next(b);
1583                 } while (b != first);
1584                 break;
1585         }
1586
1587         case LFUN_BUFFER_WRITE_AS:
1588                 enable = doc_buffer;
1589                 break;
1590
1591         case LFUN_BUFFER_CLOSE:
1592                 enable = doc_buffer;
1593                 break;
1594
1595         case LFUN_BUFFER_CLOSE_ALL:
1596                 enable = theBufferList().last() != theBufferList().first();
1597                 break;
1598
1599         case LFUN_SPLIT_VIEW:
1600                 if (cmd.getArg(0) == "vertical")
1601                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1602                                          d.splitter_->orientation() == Qt::Vertical);
1603                 else
1604                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1605                                          d.splitter_->orientation() == Qt::Horizontal);
1606                 break;
1607
1608         case LFUN_CLOSE_TAB_GROUP:
1609                 enable = d.currentTabWorkArea();
1610                 break;
1611
1612         case LFUN_TOOLBAR_TOGGLE: {
1613                 string const name = cmd.getArg(0);
1614                 if (GuiToolbar * t = toolbar(name))
1615                         flag.setOnOff(t->isVisible());
1616                 else {
1617                         enable = false;
1618                         docstring const msg =
1619                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
1620                         flag.message(msg);
1621                 }
1622                 break;
1623         }
1624
1625         case LFUN_DROP_LAYOUTS_CHOICE:
1626                 enable = buf;
1627                 break;
1628
1629         case LFUN_UI_TOGGLE:
1630                 flag.setOnOff(isFullScreen());
1631                 break;
1632
1633         case LFUN_DIALOG_DISCONNECT_INSET:
1634                 break;
1635
1636         case LFUN_DIALOG_HIDE:
1637                 // FIXME: should we check if the dialog is shown?
1638                 break;
1639
1640         case LFUN_DIALOG_TOGGLE:
1641                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1642                 // fall through to set "enable"
1643         case LFUN_DIALOG_SHOW: {
1644                 string const name = cmd.getArg(0);
1645                 if (!doc_buffer)
1646                         enable = name == "aboutlyx"
1647                                 || name == "file" //FIXME: should be removed.
1648                                 || name == "prefs"
1649                                 || name == "texinfo"
1650                                 || name == "progress"
1651                                 || name == "compare";
1652                 else if (name == "print")
1653                         enable = doc_buffer->isExportable("dvi")
1654                                 && lyxrc.print_command != "none";
1655                 else if (name == "character" || name == "symbols") {
1656                         if (!buf || buf->isReadonly())
1657                                 enable = false;
1658                         else {
1659                                 // FIXME we should consider passthru
1660                                 // paragraphs too.
1661                                 Inset const & in = currentBufferView()->cursor().inset();
1662                                 enable = !in.getLayout().isPassThru();
1663                         }
1664                 }
1665                 else if (name == "latexlog")
1666                         enable = FileName(doc_buffer->logName()).isReadableFile();
1667                 else if (name == "spellchecker")
1668                         enable = theSpellChecker() && !doc_buffer->isReadonly();
1669                 else if (name == "vclog")
1670                         enable = doc_buffer->lyxvc().inUse();
1671                 break;
1672         }
1673
1674         case LFUN_DIALOG_UPDATE: {
1675                 string const name = cmd.getArg(0);
1676                 if (!buf)
1677                         enable = name == "prefs";
1678                 break;
1679         }
1680
1681         case LFUN_COMMAND_EXECUTE:
1682         case LFUN_MESSAGE:
1683         case LFUN_MENU_OPEN:
1684                 // Nothing to check.
1685                 break;
1686
1687         case LFUN_COMPLETION_INLINE:
1688                 if (!d.current_work_area_
1689                         || !d.current_work_area_->completer().inlinePossible(
1690                         currentBufferView()->cursor()))
1691                         enable = false;
1692                 break;
1693
1694         case LFUN_COMPLETION_POPUP:
1695                 if (!d.current_work_area_
1696                         || !d.current_work_area_->completer().popupPossible(
1697                         currentBufferView()->cursor()))
1698                         enable = false;
1699                 break;
1700
1701         case LFUN_COMPLETION_COMPLETE:
1702                 if (!d.current_work_area_
1703                         || !d.current_work_area_->completer().inlinePossible(
1704                         currentBufferView()->cursor()))
1705                         enable = false;
1706                 break;
1707
1708         case LFUN_COMPLETION_ACCEPT:
1709                 if (!d.current_work_area_
1710                         || (!d.current_work_area_->completer().popupVisible()
1711                         && !d.current_work_area_->completer().inlineVisible()
1712                         && !d.current_work_area_->completer().completionAvailable()))
1713                         enable = false;
1714                 break;
1715
1716         case LFUN_COMPLETION_CANCEL:
1717                 if (!d.current_work_area_
1718                         || (!d.current_work_area_->completer().popupVisible()
1719                         && !d.current_work_area_->completer().inlineVisible()))
1720                         enable = false;
1721                 break;
1722
1723         case LFUN_BUFFER_ZOOM_OUT:
1724                 enable = doc_buffer && lyxrc.zoom > 10;
1725                 break;
1726
1727         case LFUN_BUFFER_ZOOM_IN:
1728                 enable = doc_buffer;
1729                 break;
1730
1731         case LFUN_BUFFER_NEXT:
1732         case LFUN_BUFFER_PREVIOUS:
1733                 // FIXME: should we check is there is an previous or next buffer?
1734                 break;
1735         case LFUN_BUFFER_SWITCH:
1736                 // toggle on the current buffer, but do not toggle off
1737                 // the other ones (is that a good idea?)
1738                 if (doc_buffer
1739                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
1740                         flag.setOnOff(true);
1741                 break;
1742
1743         case LFUN_VC_REGISTER:
1744                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
1745                 break;
1746         case LFUN_VC_CHECK_IN:
1747                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
1748                 break;
1749         case LFUN_VC_CHECK_OUT:
1750                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
1751                 break;
1752         case LFUN_VC_LOCKING_TOGGLE:
1753                 enable = doc_buffer && !doc_buffer->isReadonly()
1754                         && doc_buffer->lyxvc().lockingToggleEnabled();
1755                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
1756                 break;
1757         case LFUN_VC_REVERT:
1758                 enable = doc_buffer && doc_buffer->lyxvc().inUse() && !doc_buffer->isReadonly();
1759                 break;
1760         case LFUN_VC_UNDO_LAST:
1761                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
1762                 break;
1763         case LFUN_VC_REPO_UPDATE:
1764                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
1765                 break;
1766         case LFUN_VC_COMMAND: {
1767                 if (cmd.argument().empty())
1768                         enable = false;
1769                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
1770                         enable = false;
1771                 break;
1772         }
1773         case LFUN_VC_COMPARE:
1774                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
1775                 break;
1776
1777         case LFUN_SERVER_GOTO_FILE_ROW:
1778                 break;
1779         case LFUN_FORWARD_SEARCH:
1780                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty());
1781                 break;
1782
1783         default:
1784                 return false;
1785         }
1786
1787         if (!enable)
1788                 flag.setEnabled(false);
1789
1790         return true;
1791 }
1792
1793
1794 static FileName selectTemplateFile()
1795 {
1796         FileDialog dlg(qt_("Select template file"));
1797         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1798         dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1799
1800         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
1801                                  QStringList(qt_("LyX Documents (*.lyx)")));
1802
1803         if (result.first == FileDialog::Later)
1804                 return FileName();
1805         if (result.second.isEmpty())
1806                 return FileName();
1807         return FileName(fromqstr(result.second));
1808 }
1809
1810
1811 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
1812 {
1813         setBusy(true);
1814
1815         Buffer * newBuffer = 0;
1816         try {
1817                 newBuffer = checkAndLoadLyXFile(filename);
1818         } catch (ExceptionMessage const & e) {
1819                 setBusy(false);
1820                 throw(e);
1821         }
1822
1823         if (!newBuffer) {
1824                 message(_("Document not loaded."));
1825                 setBusy(false);
1826                 return 0;
1827         }
1828
1829         newBuffer->errors("Parse");
1830         setBuffer(newBuffer);
1831
1832         if (tolastfiles)
1833                 theSession().lastFiles().add(filename);
1834
1835         setBusy(false);
1836         return newBuffer;
1837 }
1838
1839
1840 void GuiView::openDocument(string const & fname)
1841 {
1842         string initpath = lyxrc.document_path;
1843
1844         if (documentBufferView()) {
1845                 string const trypath = documentBufferView()->buffer().filePath();
1846                 // If directory is writeable, use this as default.
1847                 if (FileName(trypath).isDirWritable())
1848                         initpath = trypath;
1849         }
1850
1851         string filename;
1852
1853         if (fname.empty()) {
1854                 FileDialog dlg(qt_("Select document to open"), LFUN_FILE_OPEN);
1855                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1856                 dlg.setButton2(qt_("Examples|#E#e"),
1857                                 toqstr(addPath(package().system_support().absFileName(), "examples")));
1858
1859                 QStringList filter(qt_("LyX Documents (*.lyx)"));
1860                 filter << qt_("LyX-1.3.x Documents (*.lyx13)")
1861                         << qt_("LyX-1.4.x Documents (*.lyx14)")
1862                         << qt_("LyX-1.5.x Documents (*.lyx15)")
1863                         << qt_("LyX-1.6.x Documents (*.lyx16)");
1864                 FileDialog::Result result =
1865                         dlg.open(toqstr(initpath), filter);
1866
1867                 if (result.first == FileDialog::Later)
1868                         return;
1869
1870                 filename = fromqstr(result.second);
1871
1872                 // check selected filename
1873                 if (filename.empty()) {
1874                         message(_("Canceled."));
1875                         return;
1876                 }
1877         } else
1878                 filename = fname;
1879
1880         // get absolute path of file and add ".lyx" to the filename if
1881         // necessary.
1882         FileName const fullname =
1883                         fileSearch(string(), filename, "lyx", support::may_not_exist);
1884         if (!fullname.empty())
1885                 filename = fullname.absFileName();
1886
1887         if (!fullname.onlyPath().isDirectory()) {
1888                 Alert::warning(_("Invalid filename"),
1889                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
1890                                 from_utf8(fullname.absFileName())));
1891                 return;
1892         }
1893
1894         // if the file doesn't exist and isn't already open (bug 6645),
1895         // let the user create one
1896         if (!fullname.exists() && !theBufferList().exists(fullname)) {
1897                 // the user specifically chose this name. Believe him.
1898                 Buffer * const b = newFile(filename, string(), true);
1899                 if (b)
1900                         setBuffer(b);
1901                 return;
1902         }
1903
1904         docstring const disp_fn = makeDisplayPath(filename);
1905         message(bformat(_("Opening document %1$s..."), disp_fn));
1906
1907         docstring str2;
1908         Buffer * buf = loadDocument(fullname);
1909         if (buf) {
1910                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1911                 if (buf->lyxvc().inUse())
1912                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
1913                                 " " + _("Version control detected.");
1914         } else {
1915                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1916         }
1917         message(str2);
1918 }
1919
1920 // FIXME: clean that
1921 static bool import(GuiView * lv, FileName const & filename,
1922         string const & format, ErrorList & errorList)
1923 {
1924         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
1925
1926         string loader_format;
1927         vector<string> loaders = theConverters().loaders();
1928         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
1929                 for (vector<string>::const_iterator it = loaders.begin();
1930                          it != loaders.end(); ++it) {
1931                         if (!theConverters().isReachable(format, *it))
1932                                 continue;
1933
1934                         string const tofile =
1935                                 support::changeExtension(filename.absFileName(),
1936                                 formats.extension(*it));
1937                         if (!theConverters().convert(0, filename, FileName(tofile),
1938                                 filename, format, *it, errorList))
1939                                 return false;
1940                         loader_format = *it;
1941                         break;
1942                 }
1943                 if (loader_format.empty()) {
1944                         frontend::Alert::error(_("Couldn't import file"),
1945                                          bformat(_("No information for importing the format %1$s."),
1946                                          formats.prettyName(format)));
1947                         return false;
1948                 }
1949         } else
1950                 loader_format = format;
1951
1952         if (loader_format == "lyx") {
1953                 Buffer * buf = lv->loadDocument(lyxfile);
1954                 if (!buf)
1955                         return false;
1956         } else {
1957                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
1958                 if (!b)
1959                         return false;
1960                 lv->setBuffer(b);
1961                 bool as_paragraphs = loader_format == "textparagraph";
1962                 string filename2 = (loader_format == format) ? filename.absFileName()
1963                         : support::changeExtension(filename.absFileName(),
1964                                           formats.extension(loader_format));
1965                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
1966                         as_paragraphs);
1967                 guiApp->setCurrentView(lv);
1968                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1969         }
1970
1971         return true;
1972 }
1973
1974
1975 void GuiView::importDocument(string const & argument)
1976 {
1977         string format;
1978         string filename = split(argument, format, ' ');
1979
1980         LYXERR(Debug::INFO, format << " file: " << filename);
1981
1982         // need user interaction
1983         if (filename.empty()) {
1984                 string initpath = lyxrc.document_path;
1985                 if (documentBufferView()) {
1986                         string const trypath = documentBufferView()->buffer().filePath();
1987                         // If directory is writeable, use this as default.
1988                         if (FileName(trypath).isDirWritable())
1989                                 initpath = trypath;
1990                 }
1991
1992                 docstring const text = bformat(_("Select %1$s file to import"),
1993                         formats.prettyName(format));
1994
1995                 FileDialog dlg(toqstr(text), LFUN_BUFFER_IMPORT);
1996                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1997                 dlg.setButton2(qt_("Examples|#E#e"),
1998                         toqstr(addPath(package().system_support().absFileName(), "examples")));
1999
2000                 docstring filter = formats.prettyName(format);
2001                 filter += " (*.";
2002                 // FIXME UNICODE
2003                 filter += from_utf8(formats.extension(format));
2004                 filter += ')';
2005
2006                 FileDialog::Result result =
2007                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2008
2009                 if (result.first == FileDialog::Later)
2010                         return;
2011
2012                 filename = fromqstr(result.second);
2013
2014                 // check selected filename
2015                 if (filename.empty())
2016                         message(_("Canceled."));
2017         }
2018
2019         if (filename.empty())
2020                 return;
2021
2022         // get absolute path of file
2023         FileName const fullname(support::makeAbsPath(filename));
2024
2025         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2026
2027         // Check if the document already is open
2028         Buffer * buf = theBufferList().getBuffer(lyxfile);
2029         if (buf) {
2030                 setBuffer(buf);
2031                 if (!closeBuffer()) {
2032                         message(_("Canceled."));
2033                         return;
2034                 }
2035         }
2036
2037         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
2038
2039         // if the file exists already, and we didn't do
2040         // -i lyx thefile.lyx, warn
2041         if (lyxfile.exists() && fullname != lyxfile) {
2042
2043                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2044                         "Do you want to overwrite that document?"), displaypath);
2045                 int const ret = Alert::prompt(_("Overwrite document?"),
2046                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
2047
2048                 if (ret == 1) {
2049                         message(_("Canceled."));
2050                         return;
2051                 }
2052         }
2053
2054         message(bformat(_("Importing %1$s..."), displaypath));
2055         ErrorList errorList;
2056         if (import(this, fullname, format, errorList))
2057                 message(_("imported."));
2058         else
2059                 message(_("file not imported!"));
2060
2061         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2062 }
2063
2064
2065 void GuiView::newDocument(string const & filename, bool from_template)
2066 {
2067         FileName initpath(lyxrc.document_path);
2068         if (documentBufferView()) {
2069                 FileName const trypath(documentBufferView()->buffer().filePath());
2070                 // If directory is writeable, use this as default.
2071                 if (trypath.isDirWritable())
2072                         initpath = trypath;
2073         }
2074
2075         string templatefile;
2076         if (from_template) {
2077                 templatefile = selectTemplateFile().absFileName();
2078                 if (templatefile.empty())
2079                         return;
2080         }
2081
2082         Buffer * b;
2083         if (filename.empty())
2084                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
2085         else
2086                 b = newFile(filename, templatefile, true);
2087
2088         if (b)
2089                 setBuffer(b);
2090
2091         // If no new document could be created, it is unsure
2092         // whether there is a valid BufferView.
2093         if (currentBufferView())
2094                 // Ensure the cursor is correctly positioned on screen.
2095                 currentBufferView()->showCursor();
2096 }
2097
2098
2099 void GuiView::insertLyXFile(docstring const & fname)
2100 {
2101         BufferView * bv = documentBufferView();
2102         if (!bv)
2103                 return;
2104
2105         // FIXME UNICODE
2106         FileName filename(to_utf8(fname));
2107         if (filename.empty()) {
2108                 // Launch a file browser
2109                 // FIXME UNICODE
2110                 string initpath = lyxrc.document_path;
2111                 string const trypath = bv->buffer().filePath();
2112                 // If directory is writeable, use this as default.
2113                 if (FileName(trypath).isDirWritable())
2114                         initpath = trypath;
2115
2116                 // FIXME UNICODE
2117                 FileDialog dlg(qt_("Select LyX document to insert"), LFUN_FILE_INSERT);
2118                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2119                 dlg.setButton2(qt_("Examples|#E#e"),
2120                         toqstr(addPath(package().system_support().absFileName(),
2121                         "examples")));
2122
2123                 FileDialog::Result result = dlg.open(toqstr(initpath),
2124                                          QStringList(qt_("LyX Documents (*.lyx)")));
2125
2126                 if (result.first == FileDialog::Later)
2127                         return;
2128
2129                 // FIXME UNICODE
2130                 filename.set(fromqstr(result.second));
2131
2132                 // check selected filename
2133                 if (filename.empty()) {
2134                         // emit message signal.
2135                         message(_("Canceled."));
2136                         return;
2137                 }
2138         }
2139
2140         bv->insertLyXFile(filename);
2141         bv->buffer().errors("Parse");
2142 }
2143
2144
2145 void GuiView::insertPlaintextFile(docstring const & fname,
2146         bool asParagraph)
2147 {
2148         BufferView * bv = documentBufferView();
2149         if (!bv)
2150                 return;
2151
2152         if (!fname.empty() && !FileName::isAbsolute(to_utf8(fname))) {
2153                 message(_("Absolute filename expected."));
2154                 return;
2155         }
2156
2157         // FIXME UNICODE
2158         FileName filename(to_utf8(fname));
2159
2160         if (!filename.empty()) {
2161                 bv->insertPlaintextFile(filename, asParagraph);
2162                 return;
2163         }
2164
2165         FileDialog dlg(qt_("Select file to insert"), (asParagraph ?
2166                 LFUN_FILE_INSERT_PLAINTEXT_PARA : LFUN_FILE_INSERT_PLAINTEXT));
2167
2168         FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
2169                 QStringList(qt_("All Files (*)")));
2170
2171         if (result.first == FileDialog::Later)
2172                 return;
2173
2174         // FIXME UNICODE
2175         filename.set(fromqstr(result.second));
2176
2177         // check selected filename
2178         if (filename.empty()) {
2179                 // emit message signal.
2180                 message(_("Canceled."));
2181                 return;
2182         }
2183
2184         bv->insertPlaintextFile(filename, asParagraph);
2185 }
2186
2187
2188 bool GuiView::renameBuffer(Buffer & b, docstring const & newname)
2189 {
2190         FileName fname = b.fileName();
2191         FileName const oldname = fname;
2192
2193         if (!newname.empty()) {
2194                 // FIXME UNICODE
2195                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFileName());
2196         } else {
2197                 // Switch to this Buffer.
2198                 setBuffer(&b);
2199
2200                 // No argument? Ask user through dialog.
2201                 // FIXME UNICODE
2202                 FileDialog dlg(qt_("Choose a filename to save document as"),
2203                                    LFUN_BUFFER_WRITE_AS);
2204                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2205                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2206
2207                 if (!isLyXFileName(fname.absFileName()))
2208                         fname.changeExtension(".lyx");
2209
2210                 FileDialog::Result result =
2211                         dlg.save(toqstr(fname.onlyPath().absFileName()),
2212                                    QStringList(qt_("LyX Documents (*.lyx)")),
2213                                          toqstr(fname.onlyFileName()));
2214
2215                 if (result.first == FileDialog::Later)
2216                         return false;
2217
2218                 fname.set(fromqstr(result.second));
2219
2220                 if (fname.empty())
2221                         return false;
2222
2223                 if (!isLyXFileName(fname.absFileName()))
2224                         fname.changeExtension(".lyx");
2225         }
2226
2227         // fname is now the new Buffer location.
2228         if (FileName(fname).exists()) {
2229                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2230                 docstring text = bformat(_("The document %1$s already "
2231                                            "exists.\n\nDo you want to "
2232                                            "overwrite that document?"),
2233                                          file);
2234                 int const ret = Alert::prompt(_("Overwrite document?"),
2235                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2236                 switch (ret) {
2237                 case 0: break;
2238                 case 1: return renameBuffer(b, docstring());
2239                 case 2: return false;
2240                 }
2241         }
2242
2243         return saveBuffer(b, fname);
2244 }
2245
2246
2247 bool GuiView::saveBuffer(Buffer & b) {
2248         return saveBuffer(b, FileName());
2249 }
2250
2251
2252 bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
2253 {
2254         if (workArea(b) && workArea(b)->inDialogMode())
2255                 return true;
2256
2257         if (fn.empty() && b.isUnnamed())
2258                         return renameBuffer(b, docstring());
2259
2260         bool success;
2261         if (fn.empty())
2262                 success = b.save();
2263         else
2264                 success = b.saveAs(fn);
2265
2266         if (success) {
2267                 theSession().lastFiles().add(b.fileName());
2268                 return true;
2269         }
2270
2271         // Switch to this Buffer.
2272         setBuffer(&b);
2273
2274         // FIXME: we don't tell the user *WHY* the save failed !!
2275         docstring const file = makeDisplayPath(b.absFileName(), 30);
2276         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2277                                    "Do you want to rename the document and "
2278                                    "try again?"), file);
2279         int const ret = Alert::prompt(_("Rename and save?"),
2280                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2281         switch (ret) {
2282         case 0:
2283                 if (!renameBuffer(b, docstring()))
2284                         return false;
2285                 break;
2286         case 1:
2287                 break;
2288         case 2:
2289                 return false;
2290         }
2291
2292         return saveBuffer(b);
2293 }
2294
2295
2296 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2297 {
2298         return closeWorkArea(wa, false);
2299 }
2300
2301
2302 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2303 {
2304         Buffer & buf = wa->bufferView().buffer();
2305         return closeWorkArea(wa, !buf.parent());
2306 }
2307
2308
2309 bool GuiView::closeBuffer()
2310 {
2311         GuiWorkArea * wa = currentMainWorkArea();
2312         setCurrentWorkArea(wa);
2313         Buffer & buf = wa->bufferView().buffer();
2314         return wa && closeWorkArea(wa, !buf.parent());
2315 }
2316
2317
2318 void GuiView::writeSession() const {
2319         GuiWorkArea const * active_wa = currentMainWorkArea();
2320         for (int i = 0; i < d.splitter_->count(); ++i) {
2321                 TabWorkArea * twa = d.tabWorkArea(i);
2322                 for (int j = 0; j < twa->count(); ++j) {
2323                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
2324                         Buffer & buf = wa->bufferView().buffer();
2325                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2326                 }
2327         }
2328 }
2329
2330
2331 bool GuiView::closeBufferAll()
2332 {
2333         // Close the workareas in all other views
2334         QList<int> const ids = guiApp->viewIds();
2335         for (int i = 0; i != ids.size(); ++i) {
2336                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2337                         return false;
2338         }
2339
2340         // Close our own workareas
2341         if (!closeWorkAreaAll())
2342                 return false;
2343
2344         // Now close the hidden buffers. We prevent hidden buffers from being
2345         // dirty, so we can just close them.
2346         theBufferList().closeAll();
2347         return true;
2348 }
2349
2350
2351 bool GuiView::closeWorkAreaAll()
2352 {
2353         setCurrentWorkArea(currentMainWorkArea());
2354
2355         // We might be in a situation that there is still a tabWorkArea, but
2356         // there are no tabs anymore. This can happen when we get here after a
2357         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2358         // many TabWorkArea's have no documents anymore.
2359         int empty_twa = 0;
2360
2361         // We have to call count() each time, because it can happen that
2362         // more than one splitter will disappear in one iteration (bug 5998).
2363         for (; d.splitter_->count() > empty_twa; ) {
2364                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2365
2366                 if (twa->count() == 0)
2367                         ++empty_twa;
2368                 else {
2369                         setCurrentWorkArea(twa->currentWorkArea());
2370                         if (!closeTabWorkArea(twa))
2371                                 return false;
2372                 }
2373         }
2374         return true;
2375 }
2376
2377
2378 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2379 {
2380         if (!wa)
2381                 return false;
2382
2383         Buffer & buf = wa->bufferView().buffer();
2384
2385         if (close_buffer && GuiViewPrivate::busyBuffers.contains(&buf)) {
2386                 Alert::warning(_("Close document "), _("Document could not be closed because it is processed by LyX."));
2387                 return false;
2388         }
2389
2390         if (close_buffer)
2391                 return closeBuffer(buf);
2392         else {
2393                 if (!inMultiTabs(wa))
2394                         if (!saveBufferIfNeeded(buf, true))
2395                                 return false;
2396                 removeWorkArea(wa);
2397                 return true;
2398         }
2399 }
2400
2401
2402 bool GuiView::closeBuffer(Buffer & buf)
2403 {
2404         // If we are in a close_event all children will be closed in some time,
2405         // so no need to do it here. This will ensure that the children end up
2406         // in the session file in the correct order. If we close the master
2407         // buffer, we can close or release the child buffers here too.
2408         if (!closing_) {
2409                 ListOfBuffers clist = buf.getChildren();
2410                 ListOfBuffers::const_iterator it = clist.begin();
2411                 ListOfBuffers::const_iterator const bend = clist.end();
2412                 for (; it != bend; ++it) {
2413                         // If a child is dirty, do not close
2414                         // without user intervention
2415                         //FIXME: should we look in other tabworkareas?
2416                         Buffer * child_buf = *it;
2417                         GuiWorkArea * child_wa = workArea(*child_buf);
2418                         if (child_wa) {
2419                                 if (!closeWorkArea(child_wa, true))
2420                                         return false;
2421                         } else
2422                                 theBufferList().releaseChild(&buf, child_buf);
2423                 }
2424         }
2425         // goto bookmark to update bookmark pit.
2426         //FIXME: we should update only the bookmarks related to this buffer!
2427         LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2428         for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2429                 guiApp->gotoBookmark(i+1, false, false);
2430
2431         if (saveBufferIfNeeded(buf, false)) {
2432                 buf.removeAutosaveFile();
2433                 theBufferList().release(&buf);
2434                 return true;
2435         }
2436         return false;
2437 }
2438
2439
2440 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2441 {
2442         while (twa == d.currentTabWorkArea()) {
2443                 twa->setCurrentIndex(twa->count()-1);
2444
2445                 GuiWorkArea * wa = twa->currentWorkArea();
2446                 Buffer & b = wa->bufferView().buffer();
2447
2448                 // We only want to close the buffer if the same buffer is not visible
2449                 // in another view, and if this is not a child and if we are closing
2450                 // a view (not a tabgroup).
2451                 bool const close_buffer =
2452                         !inMultiViews(wa) && !b.parent() && closing_;
2453
2454                 if (!closeWorkArea(wa, close_buffer))
2455                         return false;
2456         }
2457         return true;
2458 }
2459
2460
2461 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2462 {
2463         if (buf.isClean() || buf.paragraphs().empty())
2464                 return true;
2465
2466         // Switch to this Buffer.
2467         setBuffer(&buf);
2468
2469         docstring file;
2470         // FIXME: Unicode?
2471         if (buf.isUnnamed())
2472                 file = from_utf8(buf.fileName().onlyFileName());
2473         else
2474                 file = buf.fileName().displayName(30);
2475
2476         // Bring this window to top before asking questions.
2477         raise();
2478         activateWindow();
2479
2480         int ret;
2481         if (hiding && buf.isUnnamed()) {
2482                 docstring const text = bformat(_("The document %1$s has not been "
2483                                                  "saved yet.\n\nDo you want to save "
2484                                                  "the document?"), file);
2485                 ret = Alert::prompt(_("Save new document?"),
2486                         text, 0, 1, _("&Save"), _("&Cancel"));
2487                 if (ret == 1)
2488                         ++ret;
2489         } else {
2490                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2491                         "\n\nDo you want to save the document or discard the changes?"), file);
2492                 ret = Alert::prompt(_("Save changed document?"),
2493                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2494         }
2495
2496         switch (ret) {
2497         case 0:
2498                 if (!saveBuffer(buf))
2499                         return false;
2500                 break;
2501         case 1:
2502                 // if we crash after this we could
2503                 // have no autosave file but I guess
2504                 // this is really improbable (Jug)
2505                 // Sometime improbable things happen, bug 6857 (ps)
2506                 // buf.removeAutosaveFile();
2507                 if (hiding)
2508                         // revert all changes
2509                         reloadBuffer(buf);
2510                 buf.markClean();
2511                 break;
2512         case 2:
2513                 return false;
2514         }
2515         return true;
2516 }
2517
2518
2519 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2520 {
2521         Buffer & buf = wa->bufferView().buffer();
2522
2523         for (int i = 0; i != d.splitter_->count(); ++i) {
2524                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2525                 if (wa_ && wa_ != wa)
2526                         return true;
2527         }
2528         return inMultiViews(wa);
2529 }
2530
2531
2532 bool GuiView::inMultiViews(GuiWorkArea * wa)
2533 {
2534         QList<int> const ids = guiApp->viewIds();
2535         Buffer & buf = wa->bufferView().buffer();
2536
2537         int found_twa = 0;
2538         for (int i = 0; i != ids.size() && found_twa <= 1; ++i) {
2539                 if (id_ == ids[i])
2540                         continue;
2541
2542                 if (guiApp->view(ids[i]).workArea(buf))
2543                         return true;
2544         }
2545         return false;
2546 }
2547
2548
2549 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np)
2550 {
2551         Buffer * const curbuf = documentBufferView()
2552                 ? &documentBufferView()->buffer() : 0;
2553         Buffer * nextbuf = curbuf;
2554         while (true) {
2555                 if (np == NEXTBUFFER)
2556                         nextbuf = theBufferList().next(nextbuf);
2557                 else
2558                         nextbuf = theBufferList().previous(nextbuf);
2559                 if (nextbuf == curbuf)
2560                         break;
2561                 if (nextbuf == 0) {
2562                         nextbuf = curbuf;
2563                         break;
2564                 }
2565                 if (workArea(*nextbuf))
2566                         break;
2567         }
2568         setBuffer(nextbuf);
2569 }
2570
2571
2572 /// make sure the document is saved
2573 static bool ensureBufferClean(Buffer * buffer)
2574 {
2575         LASSERT(buffer, return false);
2576         if (buffer->isClean() && !buffer->isUnnamed())
2577                 return true;
2578
2579         docstring const file = buffer->fileName().displayName(30);
2580         docstring title;
2581         docstring text;
2582         if (!buffer->isUnnamed()) {
2583                 text = bformat(_("The document %1$s has unsaved "
2584                                                  "changes.\n\nDo you want to save "
2585                                                  "the document?"), file);
2586                 title = _("Save changed document?");
2587
2588         } else {
2589                 text = bformat(_("The document %1$s has not been "
2590                                                  "saved yet.\n\nDo you want to save "
2591                                                  "the document?"), file);
2592                 title = _("Save new document?");
2593         }
2594         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
2595
2596         if (ret == 0)
2597                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
2598
2599         return buffer->isClean() && !buffer->isUnnamed();
2600 }
2601
2602
2603 bool GuiView::reloadBuffer(Buffer & buf)
2604 {
2605         Buffer::ReadStatus status = buf.reload();
2606         return status == Buffer::ReadSuccess;
2607 }
2608
2609
2610 void GuiView::checkExternallyModifiedBuffers()
2611 {
2612         BufferList::iterator bit = theBufferList().begin();
2613         BufferList::iterator const bend = theBufferList().end();
2614         for (; bit != bend; ++bit) {
2615                 Buffer * buf = *bit;
2616                 if (buf->fileName().exists()
2617                         && buf->isExternallyModified(Buffer::checksum_method)) {
2618                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
2619                                         " Reload now? Any local changes will be lost."),
2620                                         from_utf8(buf->absFileName()));
2621                         int const ret = Alert::prompt(_("Reload externally changed document?"),
2622                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
2623                         if (!ret)
2624                                 reloadBuffer(*buf);
2625                 }
2626         }
2627 }
2628
2629
2630 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
2631 {
2632         Buffer * buffer = documentBufferView()
2633                 ? &(documentBufferView()->buffer()) : 0;
2634
2635         switch (cmd.action()) {
2636         case LFUN_VC_REGISTER:
2637                 if (!buffer || !ensureBufferClean(buffer))
2638                         break;
2639                 if (!buffer->lyxvc().inUse()) {
2640                         if (buffer->lyxvc().registrer()) {
2641                                 reloadBuffer(*buffer);
2642                                 dr.suppressMessageUpdate();
2643                         }
2644                 }
2645                 break;
2646
2647         case LFUN_VC_CHECK_IN:
2648                 if (!buffer || !ensureBufferClean(buffer))
2649                         break;
2650                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
2651                         dr.setMessage(buffer->lyxvc().checkIn());
2652                         if (!dr.message().empty())
2653                                 reloadBuffer(*buffer);
2654                 }
2655                 break;
2656
2657         case LFUN_VC_CHECK_OUT:
2658                 if (!buffer || !ensureBufferClean(buffer))
2659                         break;
2660                 if (buffer->lyxvc().inUse()) {
2661                         dr.setMessage(buffer->lyxvc().checkOut());
2662                         reloadBuffer(*buffer);
2663                 }
2664                 break;
2665
2666         case LFUN_VC_LOCKING_TOGGLE:
2667                 LASSERT(buffer, return);
2668                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
2669                         break;
2670                 if (buffer->lyxvc().inUse()) {
2671                         string res = buffer->lyxvc().lockingToggle();
2672                         if (res.empty()) {
2673                                 frontend::Alert::error(_("Revision control error."),
2674                                 _("Error when setting the locking property."));
2675                         } else {
2676                                 dr.setMessage(res);
2677                                 reloadBuffer(*buffer);
2678                         }
2679                 }
2680                 break;
2681
2682         case LFUN_VC_REVERT:
2683                 LASSERT(buffer, return);
2684                 if (buffer->lyxvc().revert()) {
2685                         reloadBuffer(*buffer);
2686                         dr.suppressMessageUpdate();
2687                 }
2688                 break;
2689
2690         case LFUN_VC_UNDO_LAST:
2691                 LASSERT(buffer, return);
2692                 buffer->lyxvc().undoLast();
2693                 reloadBuffer(*buffer);
2694                 dr.suppressMessageUpdate();
2695                 break;
2696
2697         case LFUN_VC_REPO_UPDATE:
2698                 LASSERT(buffer, return);
2699                 if (ensureBufferClean(buffer)) {
2700                         dr.setMessage(buffer->lyxvc().repoUpdate());
2701                         checkExternallyModifiedBuffers();
2702                 }
2703                 break;
2704
2705         case LFUN_VC_COMMAND: {
2706                 string flag = cmd.getArg(0);
2707                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
2708                         break;
2709                 docstring message;
2710                 if (contains(flag, 'M')) {
2711                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
2712                                 break;
2713                 }
2714                 string path = cmd.getArg(1);
2715                 if (contains(path, "$$p") && buffer)
2716                         path = subst(path, "$$p", buffer->filePath());
2717                 LYXERR(Debug::LYXVC, "Directory: " << path);
2718                 FileName pp(path);
2719                 if (!pp.isReadableDirectory()) {
2720                         lyxerr << _("Directory is not accessible.") << endl;
2721                         break;
2722                 }
2723                 support::PathChanger p(pp);
2724
2725                 string command = cmd.getArg(2);
2726                 if (command.empty())
2727                         break;
2728                 if (buffer) {
2729                         command = subst(command, "$$i", buffer->absFileName());
2730                         command = subst(command, "$$p", buffer->filePath());
2731                 }
2732                 command = subst(command, "$$m", to_utf8(message));
2733                 LYXERR(Debug::LYXVC, "Command: " << command);
2734                 Systemcall one;
2735                 one.startscript(Systemcall::Wait, command);
2736
2737                 if (!buffer)
2738                         break;
2739                 if (contains(flag, 'I'))
2740                         buffer->markDirty();
2741                 if (contains(flag, 'R'))
2742                         reloadBuffer(*buffer);
2743
2744                 break;
2745                 }
2746
2747         case LFUN_VC_COMPARE: {
2748
2749                 if (cmd.argument().empty()) {
2750                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
2751                         break;
2752                 }
2753
2754                 string rev1 = cmd.getArg(0);
2755                 string f1, f2;
2756
2757                 // f1
2758                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
2759                         break;
2760
2761                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
2762                         f2 = buffer->absFileName();
2763                 } else {
2764                         string rev2 = cmd.getArg(1);
2765                         if (rev2.empty())
2766                                 break;
2767                         // f2
2768                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
2769                                 break;
2770                 }
2771
2772                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
2773                                         f1 << "\n"  << f2 << "\n" );
2774                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
2775                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
2776                 break;
2777         }
2778
2779         default:
2780                 break;
2781         }
2782 }
2783
2784
2785 void GuiView::openChildDocument(string const & fname)
2786 {
2787         LASSERT(documentBufferView(), return);
2788         Buffer & buffer = documentBufferView()->buffer();
2789         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
2790         documentBufferView()->saveBookmark(false);
2791         Buffer * child = 0;
2792         if (theBufferList().exists(filename)) {
2793                 child = theBufferList().getBuffer(filename);
2794                 setBuffer(child);
2795         } else {
2796                 message(bformat(_("Opening child document %1$s..."),
2797                         makeDisplayPath(filename.absFileName())));
2798                 child = loadDocument(filename, false);
2799         }
2800         // Set the parent name of the child document.
2801         // This makes insertion of citations and references in the child work,
2802         // when the target is in the parent or another child document.
2803         if (child)
2804                 child->setParent(&buffer);
2805 }
2806
2807
2808 bool GuiView::goToFileRow(string const & argument)
2809 {
2810         string file_name;
2811         int row;
2812         size_t i = argument.find_last_of(' ');
2813         if (i != string::npos) {
2814                 file_name = os::internal_path(trim(argument.substr(0, i)));
2815                 istringstream is(argument.substr(i + 1));
2816                 is >> row;
2817                 if (is.fail())
2818                         i = string::npos;
2819         }
2820         if (i == string::npos) {
2821                 LYXERR0("Wrong argument: " << argument);
2822                 return false;
2823         }
2824         Buffer * buf = 0;
2825         string const abstmp = package().temp_dir().absFileName();
2826         string const realtmp = package().temp_dir().realPath();
2827         // We have to use os::path_prefix_is() here, instead of
2828         // simply prefixIs(), because the file name comes from
2829         // an external application and may need case adjustment.
2830         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
2831                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
2832                 // Needed by inverse dvi search. If it is a file
2833                 // in tmpdir, call the apropriated function.
2834                 // If tmpdir is a symlink, we may have the real
2835                 // path passed back, so we correct for that.
2836                 if (!prefixIs(file_name, abstmp))
2837                         file_name = subst(file_name, realtmp, abstmp);
2838                 buf = theBufferList().getBufferFromTmp(file_name);
2839         } else {
2840                 // Must replace extension of the file to be .lyx
2841                 // and get full path
2842                 FileName const s = fileSearch(string(),
2843                                                   support::changeExtension(file_name, ".lyx"), "lyx");
2844                 // Either change buffer or load the file
2845                 if (theBufferList().exists(s))
2846                         buf = theBufferList().getBuffer(s);
2847                 else if (s.exists()) {
2848                         buf = loadDocument(s);
2849                         if (!buf)
2850                                 return false;
2851                 } else {
2852                         message(bformat(
2853                                         _("File does not exist: %1$s"),
2854                                         makeDisplayPath(file_name)));
2855                         return false;
2856                 }
2857         }
2858         setBuffer(buf);
2859         documentBufferView()->setCursorFromRow(row);
2860         return true;
2861 }
2862
2863
2864 #if (QT_VERSION >= 0x040400)
2865 template<class T>
2866 docstring GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format, string const & msg)
2867 {
2868         bool const update_unincluded =
2869                                 buffer->params().maintain_unincluded_children
2870                                 && !buffer->params().getIncludedChildren().empty();
2871         bool const success = func(format, update_unincluded);
2872         delete buffer;
2873         busyBuffers.remove(orig);
2874         return success
2875                 ? bformat(_("Successful " + msg + " to format: %1$s"), from_utf8(format))
2876                 : bformat(_("Error " + msg + " format: %1$s"), from_utf8(format));
2877 }
2878
2879 docstring GuiView::GuiViewPrivate::compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2880 {
2881         bool (Buffer::* mem_func)(std::string const &, bool, bool) const = &Buffer::doExport;
2882         return runAndDestroy(bind(mem_func, buffer, _1, true, _2), orig, buffer, format, "export");
2883 }
2884
2885 docstring GuiView::GuiViewPrivate::exportAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2886 {
2887         bool (Buffer::* mem_func)(std::string const &, bool, bool) const = &Buffer::doExport;
2888         return runAndDestroy(bind(mem_func, buffer, _1, false, _2), orig, buffer, format, "export");
2889
2890 }
2891
2892 docstring GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format)
2893 {
2894         bool(Buffer::* mem_func)(std::string const &, bool) const = &Buffer::preview;
2895         return runAndDestroy(bind(mem_func, buffer, _1, _2), orig, buffer, format, "preview");
2896 }
2897 #endif
2898
2899
2900 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
2901                            string const & argument,
2902                            Buffer const * used_buffer,
2903                            docstring const & msg,
2904                            docstring (*asyncFunc)(Buffer const *, Buffer *, string const &),
2905                            bool (Buffer::*syncFunc)(string const &, bool, bool) const,
2906                            bool (Buffer::*previewFunc)(string const &, bool) const)
2907 {
2908         if (!used_buffer) {
2909                 return false;
2910         }
2911         gv_->processingThreadStarted();
2912         string format = argument;
2913         if (format.empty()) {
2914                 format = used_buffer->getDefaultOutputFormat();
2915         }
2916 #if EXPORT_in_THREAD && (QT_VERSION >= 0x040400)
2917         if (!msg.empty()) {
2918                 progress_->clearMessages();
2919                 gv_->message(msg);
2920         }
2921         GuiViewPrivate::busyBuffers.insert(used_buffer);
2922         QFuture<docstring> f = QtConcurrent::run(
2923                                 asyncFunc,
2924                                 used_buffer,
2925                                 used_buffer->clone(),
2926                                 format);
2927         setPreviewFuture(f);
2928         last_export_format = used_buffer->bufferFormat();
2929         (void) syncFunc;
2930         (void) previewFunc;
2931         // We are asynchronous, so we don't know here anything about the success
2932         return true;
2933 #else
2934         bool const update_unincluded =
2935                 used_buffer->params().maintain_unincluded_children &&
2936                 !used_buffer->params().getIncludedChildren().empty();
2937         if (syncFunc) {
2938                 return (used_buffer->*syncFunc)(format, true, update_unincluded);
2939         } else if (previewFunc) {
2940                 return (used_buffer->*previewFunc)(format, update_unincluded);
2941         }
2942         (void) asyncFunc;
2943         return false;
2944 #endif
2945 }
2946
2947 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
2948 {
2949         BufferView * bv = currentBufferView();
2950         // By default we won't need any update.
2951         dr.screenUpdate(Update::None);
2952         // assume cmd will be dispatched
2953         dr.dispatched(true);
2954
2955         Buffer * doc_buffer = documentBufferView()
2956                 ? &(documentBufferView()->buffer()) : 0;
2957
2958         if (cmd.origin() == FuncRequest::TOC) {
2959                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
2960                 // FIXME: do we need to pass a DispatchResult object here?
2961                 toc->doDispatch(bv->cursor(), cmd);
2962                 return;
2963         }
2964
2965         string const argument = to_utf8(cmd.argument());
2966
2967         switch(cmd.action()) {
2968                 case LFUN_BUFFER_CHILD_OPEN:
2969                         openChildDocument(to_utf8(cmd.argument()));
2970                         break;
2971
2972                 case LFUN_BUFFER_IMPORT:
2973                         importDocument(to_utf8(cmd.argument()));
2974                         break;
2975
2976                 case LFUN_BUFFER_EXPORT: {
2977                         if (!doc_buffer)
2978                                 break;
2979                         // GCC only sees strfwd.h when building merged
2980                         if (::lyx::operator==(cmd.argument(), "custom")) {
2981                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
2982                                 break;
2983                         }
2984 #if 0
2985                         // TODO Remove if we could export asynchronous
2986                         if (!doc_buffer->doExport(argument, false)) {
2987                                 dr.setError(true);
2988                                 dr.setMessage(bformat(_("Error exporting to format: %1$s."),
2989                                         cmd.argument()));
2990                         }
2991 #else
2992                         /* TODO/Review: Is it a problem to also export the children?
2993                                         See the update_unincluded flag */
2994                         d.asyncBufferProcessing(argument,
2995                                                 doc_buffer,
2996                                                 _("Exporting ..."),
2997                                                 &GuiViewPrivate::exportAndDestroy,
2998                                                 &Buffer::doExport,
2999                                                 0);
3000                         // TODO Inform user about success
3001 #endif
3002                         break;
3003                 }
3004
3005                 case LFUN_BUFFER_UPDATE: {
3006                         d.asyncBufferProcessing(argument,
3007                                                 doc_buffer,
3008                                                 _("Exporting ..."),
3009                                                 &GuiViewPrivate::compileAndDestroy,
3010                                                 &Buffer::doExport,
3011                                                 0);
3012                         break;
3013                 }
3014                 case LFUN_BUFFER_VIEW: {
3015                         d.asyncBufferProcessing(argument,
3016                                                 doc_buffer,
3017                                                 _("Previewing ..."),
3018                                                 &GuiViewPrivate::previewAndDestroy,
3019                                                 0,
3020                                                 &Buffer::preview);
3021                         break;
3022                 }
3023                 case LFUN_MASTER_BUFFER_UPDATE: {
3024                         d.asyncBufferProcessing(argument,
3025                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3026                                                 docstring(),
3027                                                 &GuiViewPrivate::compileAndDestroy,
3028                                                 &Buffer::doExport,
3029                                                 0);
3030                         break;
3031                 }
3032                 case LFUN_MASTER_BUFFER_VIEW: {
3033                         d.asyncBufferProcessing(argument,
3034                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3035                                                 docstring(),
3036                                                 &GuiViewPrivate::previewAndDestroy,
3037                                                 0, &Buffer::preview);
3038                         break;
3039                 }
3040                 case LFUN_BUFFER_SWITCH: {
3041                         string const file_name = to_utf8(cmd.argument());
3042                         if (!FileName::isAbsolute(file_name)) {
3043                                 dr.setError(true);
3044                                 dr.setMessage(_("Absolute filename expected."));
3045                                 break;
3046                         }
3047
3048                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3049                         if (!buffer) {
3050                                 dr.setError(true);
3051                                 dr.setMessage(_("Document not loaded"));
3052                                 break;
3053                         }
3054
3055                         // Do we open or switch to the buffer in this view ?
3056                         if (workArea(*buffer)
3057                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3058                                 setBuffer(buffer);
3059                                 break;
3060                         }
3061
3062                         // Look for the buffer in other views
3063                         QList<int> const ids = guiApp->viewIds();
3064                         int i = 0;
3065                         for (; i != ids.size(); ++i) {
3066                                 GuiView & gv = guiApp->view(ids[i]);
3067                                 if (gv.workArea(*buffer)) {
3068                                         gv.activateWindow();
3069                                         gv.setBuffer(buffer);
3070                                         break;
3071                                 }
3072                         }
3073
3074                         // If necessary, open a new window as a last resort
3075                         if (i == ids.size()) {
3076                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3077                                 lyx::dispatch(cmd);
3078                         }
3079                         break;
3080                 }
3081
3082                 case LFUN_BUFFER_NEXT:
3083                         gotoNextOrPreviousBuffer(NEXTBUFFER);
3084                         break;
3085
3086                 case LFUN_BUFFER_PREVIOUS:
3087                         gotoNextOrPreviousBuffer(PREVBUFFER);
3088                         break;
3089
3090                 case LFUN_COMMAND_EXECUTE: {
3091                         bool const show_it = cmd.argument() != "off";
3092                         // FIXME: this is a hack, "minibuffer" should not be
3093                         // hardcoded.
3094                         if (GuiToolbar * t = toolbar("minibuffer")) {
3095                                 t->setVisible(show_it);
3096                                 if (show_it && t->commandBuffer())
3097                                         t->commandBuffer()->setFocus();
3098                         }
3099                         break;
3100                 }
3101                 case LFUN_DROP_LAYOUTS_CHOICE:
3102                         d.layout_->showPopup();
3103                         break;
3104
3105                 case LFUN_MENU_OPEN:
3106                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3107                                 menu->exec(QCursor::pos());
3108                         break;
3109
3110                 case LFUN_FILE_INSERT:
3111                         insertLyXFile(cmd.argument());
3112                         break;
3113
3114                 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
3115                         insertPlaintextFile(cmd.argument(), true);
3116                         break;
3117
3118                 case LFUN_FILE_INSERT_PLAINTEXT:
3119                         insertPlaintextFile(cmd.argument(), false);
3120                         break;
3121
3122                 case LFUN_BUFFER_RELOAD: {
3123                         LASSERT(doc_buffer, break);
3124
3125                         int ret = 0;
3126                         if (!doc_buffer->isClean()) {
3127                                 docstring const file =
3128                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3129                                 docstring text = bformat(_("Any changes will be lost. "
3130                                         "Are you sure you want to revert to the saved version "
3131                                         "of the document %1$s?"), file);
3132                                 ret = Alert::prompt(_("Revert to saved document?"),
3133                                         text, 1, 1, _("&Revert"), _("&Cancel"));
3134                         }
3135
3136                         if (ret == 0) {
3137                                 doc_buffer->markClean();
3138                                 reloadBuffer(*doc_buffer);
3139                                 dr.forceBufferUpdate();
3140                         }
3141                         break;
3142                 }
3143
3144                 case LFUN_BUFFER_WRITE:
3145                         LASSERT(doc_buffer, break);
3146                         saveBuffer(*doc_buffer);
3147                         break;
3148
3149                 case LFUN_BUFFER_WRITE_AS:
3150                         LASSERT(doc_buffer, break);
3151                         renameBuffer(*doc_buffer, cmd.argument());
3152                         break;
3153
3154                 case LFUN_BUFFER_WRITE_ALL: {
3155                         Buffer * first = theBufferList().first();
3156                         if (!first)
3157                                 break;
3158                         message(_("Saving all documents..."));
3159                         // We cannot use a for loop as the buffer list cycles.
3160                         Buffer * b = first;
3161                         do {
3162                                 if (!b->isClean()) {
3163                                         saveBuffer(*b);
3164                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3165                                 }
3166                                 b = theBufferList().next(b);
3167                         } while (b != first);
3168                         dr.setMessage(_("All documents saved."));
3169                         break;
3170                 }
3171
3172                 case LFUN_BUFFER_CLOSE:
3173                         closeBuffer();
3174                         break;
3175
3176                 case LFUN_BUFFER_CLOSE_ALL:
3177                         closeBufferAll();
3178                         break;
3179
3180                 case LFUN_TOOLBAR_TOGGLE: {
3181                         string const name = cmd.getArg(0);
3182                         if (GuiToolbar * t = toolbar(name))
3183                                 t->toggle();
3184                         break;
3185                 }
3186
3187                 case LFUN_DIALOG_UPDATE: {
3188                         string const name = to_utf8(cmd.argument());
3189                         if (name == "prefs" || name == "document")
3190                                 updateDialog(name, string());
3191                         else if (name == "paragraph")
3192                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3193                         else if (currentBufferView()) {
3194                                 Inset * inset = currentBufferView()->editedInset(name);
3195                                 // Can only update a dialog connected to an existing inset
3196                                 if (inset) {
3197                                         // FIXME: get rid of this indirection; GuiView ask the inset
3198                                         // if he is kind enough to update itself...
3199                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3200                                         //FIXME: pass DispatchResult here?
3201                                         inset->dispatch(currentBufferView()->cursor(), fr);
3202                                 }
3203                         }
3204                         break;
3205                 }
3206
3207                 case LFUN_DIALOG_TOGGLE: {
3208                         if (isDialogVisible(cmd.getArg(0)))
3209                                 dispatch(FuncRequest(LFUN_DIALOG_HIDE, cmd.argument()), dr);
3210                         else
3211                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, cmd.argument()), dr);
3212                         break;
3213                 }
3214
3215                 case LFUN_DIALOG_DISCONNECT_INSET:
3216                         disconnectDialog(to_utf8(cmd.argument()));
3217                         break;
3218
3219                 case LFUN_DIALOG_HIDE: {
3220                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3221                         break;
3222                 }
3223
3224                 case LFUN_DIALOG_SHOW: {
3225                         string const name = cmd.getArg(0);
3226                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3227
3228                         if (name == "character") {
3229                                 data = freefont2string();
3230                                 if (!data.empty())
3231                                         showDialog("character", data);
3232                         } else if (name == "latexlog") {
3233                                 Buffer::LogType type;
3234                                 string const logfile = doc_buffer->logName(&type);
3235                                 switch (type) {
3236                                 case Buffer::latexlog:
3237                                         data = "latex ";
3238                                         break;
3239                                 case Buffer::buildlog:
3240                                         data = "literate ";
3241                                         break;
3242                                 }
3243                                 data += Lexer::quoteString(logfile);
3244                                 showDialog("log", data);
3245                         } else if (name == "vclog") {
3246                                 string const data = "vc " +
3247                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3248                                 showDialog("log", data);
3249                         } else if (name == "symbols") {
3250                                 data = bv->cursor().getEncoding()->name();
3251                                 if (!data.empty())
3252                                         showDialog("symbols", data);
3253                         // bug 5274
3254                         } else if (name == "prefs" && isFullScreen()) {
3255                                 lfunUiToggle("fullscreen");
3256                                 showDialog("prefs", data);
3257                         } else
3258                                 showDialog(name, data);
3259                         break;
3260                 }
3261
3262                 case LFUN_MESSAGE:
3263                         dr.setMessage(cmd.argument());
3264                         break;
3265
3266                 case LFUN_UI_TOGGLE: {
3267                         string arg = cmd.getArg(0);
3268                         if (!lfunUiToggle(arg)) {
3269                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3270                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3271                         }
3272                         // Make sure the keyboard focus stays in the work area.
3273                         setFocus();
3274                         break;
3275                 }
3276
3277                 case LFUN_SPLIT_VIEW: {
3278                         LASSERT(doc_buffer, break);
3279                         string const orientation = cmd.getArg(0);
3280                         d.splitter_->setOrientation(orientation == "vertical"
3281                                 ? Qt::Vertical : Qt::Horizontal);
3282                         TabWorkArea * twa = addTabWorkArea();
3283                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3284                         setCurrentWorkArea(wa);
3285                         break;
3286                 }
3287                 case LFUN_CLOSE_TAB_GROUP:
3288                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3289                                 closeTabWorkArea(twa);
3290                                 d.current_work_area_ = 0;
3291                                 twa = d.currentTabWorkArea();
3292                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3293                                 if (twa) {
3294                                         // Make sure the work area is up to date.
3295                                         setCurrentWorkArea(twa->currentWorkArea());
3296                                 } else {
3297                                         setCurrentWorkArea(0);
3298                                 }
3299                         }
3300                         break;
3301
3302                 case LFUN_COMPLETION_INLINE:
3303                         if (d.current_work_area_)
3304                                 d.current_work_area_->completer().showInline();
3305                         break;
3306
3307                 case LFUN_COMPLETION_POPUP:
3308                         if (d.current_work_area_)
3309                                 d.current_work_area_->completer().showPopup();
3310                         break;
3311
3312
3313                 case LFUN_COMPLETION_COMPLETE:
3314                         if (d.current_work_area_)
3315                                 d.current_work_area_->completer().tab();
3316                         break;
3317
3318                 case LFUN_COMPLETION_CANCEL:
3319                         if (d.current_work_area_) {
3320                                 if (d.current_work_area_->completer().popupVisible())
3321                                         d.current_work_area_->completer().hidePopup();
3322                                 else
3323                                         d.current_work_area_->completer().hideInline();
3324                         }
3325                         break;
3326
3327                 case LFUN_COMPLETION_ACCEPT:
3328                         if (d.current_work_area_)
3329                                 d.current_work_area_->completer().activate();
3330                         break;
3331
3332                 case LFUN_BUFFER_ZOOM_IN:
3333                 case LFUN_BUFFER_ZOOM_OUT:
3334                         if (cmd.argument().empty()) {
3335                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3336                                         lyxrc.zoom += 20;
3337                                 else
3338                                         lyxrc.zoom -= 20;
3339                         } else
3340                                 lyxrc.zoom += convert<int>(cmd.argument());
3341
3342                         if (lyxrc.zoom < 10)
3343                                 lyxrc.zoom = 10;
3344
3345                         // The global QPixmapCache is used in GuiPainter to cache text
3346                         // painting so we must reset it.
3347                         QPixmapCache::clear();
3348                         guiApp->fontLoader().update();
3349                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3350                         break;
3351
3352                 case LFUN_VC_REGISTER:
3353                 case LFUN_VC_CHECK_IN:
3354                 case LFUN_VC_CHECK_OUT:
3355                 case LFUN_VC_REPO_UPDATE:
3356                 case LFUN_VC_LOCKING_TOGGLE:
3357                 case LFUN_VC_REVERT:
3358                 case LFUN_VC_UNDO_LAST:
3359                 case LFUN_VC_COMMAND:
3360                 case LFUN_VC_COMPARE:
3361                         dispatchVC(cmd, dr);
3362                         break;
3363
3364                 case LFUN_SERVER_GOTO_FILE_ROW:
3365                         goToFileRow(to_utf8(cmd.argument()));
3366                         break;
3367
3368                 case LFUN_FORWARD_SEARCH: {
3369                         FileName const path(doc_buffer->temppath());
3370                         string const texname = doc_buffer->latexName();
3371                         FileName const dviname(addName(path.absFileName(),
3372                                     support::changeExtension(texname, "dvi")));
3373                         FileName const pdfname(addName(path.absFileName(),
3374                                     support::changeExtension(texname, "pdf")));
3375                         if (!dviname.exists() && !pdfname.exists()) {
3376                                 dr.setMessage(_("Please, preview the document first."));
3377                                 break;
3378                         }
3379                         string outname = dviname.onlyFileName();
3380                         string command = lyxrc.forward_search_dvi;
3381                         if (!dviname.exists() ||
3382                             pdfname.lastModified() > dviname.lastModified()) {
3383                                 outname = pdfname.onlyFileName();
3384                                 command = lyxrc.forward_search_pdf;
3385                         }
3386
3387                         int row = doc_buffer->texrow().getRowFromIdPos(bv->cursor().paragraph().id(), bv->cursor().pos());
3388                         LYXERR(Debug::ACTION, "Forward search: row:" << row
3389                                 << " id:" << bv->cursor().paragraph().id());
3390                         if (!row || command.empty()) {
3391                                 dr.setMessage(_("Couldn't proceed."));
3392                                 break;
3393                         }
3394                         string texrow = convert<string>(row);
3395
3396                         command = subst(command, "$$n", texrow);
3397                         command = subst(command, "$$t", texname);
3398                         command = subst(command, "$$o", outname);
3399
3400                         PathChanger p(path);
3401                         Systemcall one;
3402                         one.startscript(Systemcall::DontWait, command);
3403                         break;
3404                 }
3405                 default:
3406                         dr.dispatched(false);
3407                         break;
3408         }
3409
3410         // Part of automatic menu appearance feature.
3411         if (isFullScreen()) {
3412                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
3413                         menuBar()->hide();
3414                 if (statusBar()->isVisible())
3415                         statusBar()->hide();
3416         }
3417
3418         return;
3419 }
3420
3421
3422 bool GuiView::lfunUiToggle(string const & ui_component)
3423 {
3424         if (ui_component == "scrollbar") {
3425                 // hide() is of no help
3426                 if (d.current_work_area_->verticalScrollBarPolicy() ==
3427                         Qt::ScrollBarAlwaysOff)
3428
3429                         d.current_work_area_->setVerticalScrollBarPolicy(
3430                                 Qt::ScrollBarAsNeeded);
3431                 else
3432                         d.current_work_area_->setVerticalScrollBarPolicy(
3433                                 Qt::ScrollBarAlwaysOff);
3434         } else if (ui_component == "statusbar") {
3435                 statusBar()->setVisible(!statusBar()->isVisible());
3436         } else if (ui_component == "menubar") {
3437                 menuBar()->setVisible(!menuBar()->isVisible());
3438         } else
3439 #if QT_VERSION >= 0x040300
3440         if (ui_component == "frame") {
3441                 int l, t, r, b;
3442                 getContentsMargins(&l, &t, &r, &b);
3443                 //are the frames in default state?
3444                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
3445                 if (l == 0) {
3446                         setContentsMargins(-2, -2, -2, -2);
3447                 } else {
3448                         setContentsMargins(0, 0, 0, 0);
3449                 }
3450         } else
3451 #endif
3452         if (ui_component == "fullscreen") {
3453                 toggleFullScreen();
3454         } else
3455                 return false;
3456         return true;
3457 }
3458
3459
3460 void GuiView::toggleFullScreen()
3461 {
3462         if (isFullScreen()) {
3463                 for (int i = 0; i != d.splitter_->count(); ++i)
3464                         d.tabWorkArea(i)->setFullScreen(false);
3465 #if QT_VERSION >= 0x040300
3466                 setContentsMargins(0, 0, 0, 0);
3467 #endif
3468                 setWindowState(windowState() ^ Qt::WindowFullScreen);
3469                 restoreLayout();
3470                 menuBar()->show();
3471                 statusBar()->show();
3472         } else {
3473                 // bug 5274
3474                 hideDialogs("prefs", 0);
3475                 for (int i = 0; i != d.splitter_->count(); ++i)
3476                         d.tabWorkArea(i)->setFullScreen(true);
3477 #if QT_VERSION >= 0x040300
3478                 setContentsMargins(-2, -2, -2, -2);
3479 #endif
3480                 saveLayout();
3481                 setWindowState(windowState() ^ Qt::WindowFullScreen);
3482                 statusBar()->hide();
3483                 if (lyxrc.full_screen_menubar)
3484                         menuBar()->hide();
3485                 if (lyxrc.full_screen_toolbars) {
3486                         ToolbarMap::iterator end = d.toolbars_.end();
3487                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
3488                                 it->second->hide();
3489                 }
3490         }
3491
3492         // give dialogs like the TOC a chance to adapt
3493         updateDialogs();
3494 }
3495
3496
3497 Buffer const * GuiView::updateInset(Inset const * inset)
3498 {
3499         if (!inset)
3500                 return 0;
3501
3502         Buffer const * inset_buffer = &(inset->buffer());
3503
3504         for (int i = 0; i != d.splitter_->count(); ++i) {
3505                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
3506                 if (!wa)
3507                         continue;
3508                 Buffer const * buffer = &(wa->bufferView().buffer());
3509                 if (inset_buffer == buffer)
3510                         wa->scheduleRedraw();
3511         }
3512         return inset_buffer;
3513 }
3514
3515
3516 void GuiView::restartCursor()
3517 {
3518         /* When we move around, or type, it's nice to be able to see
3519          * the cursor immediately after the keypress.
3520          */
3521         if (d.current_work_area_)
3522                 d.current_work_area_->startBlinkingCursor();
3523
3524         // Take this occasion to update the other GUI elements.
3525         updateDialogs();
3526         updateStatusBar();
3527 }
3528
3529
3530 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
3531 {
3532         if (d.current_work_area_)
3533                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
3534 }
3535
3536 namespace {
3537
3538 // This list should be kept in sync with the list of insets in
3539 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
3540 // dialog should have the same name as the inset.
3541 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
3542 // docs in LyXAction.cpp.
3543
3544 char const * const dialognames[] = {
3545
3546 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
3547 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
3548 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
3549 "href", "include", "index", "index_print", "info", "listings", "label", "line",
3550 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
3551 "nomencl_print", "note", "paragraph", "phantom", "prefs", "print", "ref",
3552 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
3553 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
3554
3555 char const * const * const end_dialognames =
3556         dialognames + (sizeof(dialognames) / sizeof(char *));
3557
3558 class cmpCStr {
3559 public:
3560         cmpCStr(char const * name) : name_(name) {}
3561         bool operator()(char const * other) {
3562                 return strcmp(other, name_) == 0;
3563         }
3564 private:
3565         char const * name_;
3566 };
3567
3568
3569 bool isValidName(string const & name)
3570 {
3571         return find_if(dialognames, end_dialognames,
3572                                 cmpCStr(name.c_str())) != end_dialognames;
3573 }
3574
3575 } // namespace anon
3576
3577
3578 void GuiView::resetDialogs()
3579 {
3580         // Make sure that no LFUN uses any GuiView.
3581         guiApp->setCurrentView(0);
3582         saveLayout();
3583         menuBar()->clear();
3584         constructToolbars();
3585         guiApp->menus().fillMenuBar(menuBar(), this, false);
3586         d.layout_->updateContents(true);
3587         // Now update controls with current buffer.
3588         guiApp->setCurrentView(this);
3589         restoreLayout();
3590         restartCursor();
3591 }
3592
3593
3594 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
3595 {
3596         if (!isValidName(name))
3597                 return 0;
3598
3599         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
3600
3601         if (it != d.dialogs_.end()) {
3602                 if (hide_it)
3603                         it->second->hideView();
3604                 return it->second.get();
3605         }
3606
3607         Dialog * dialog = build(name);
3608         d.dialogs_[name].reset(dialog);
3609         if (lyxrc.allow_geometry_session)
3610                 dialog->restoreSession();
3611         if (hide_it)
3612                 dialog->hideView();
3613         return dialog;
3614 }
3615
3616
3617 void GuiView::showDialog(string const & name, string const & data,
3618         Inset * inset)
3619 {
3620         triggerShowDialog(toqstr(name), toqstr(data), inset);
3621 }
3622
3623
3624 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
3625         Inset * inset)
3626 {
3627         if (d.in_show_)
3628                 return;
3629
3630         const string name = fromqstr(qname);
3631         const string data = fromqstr(qdata);
3632
3633         d.in_show_ = true;
3634         try {
3635                 Dialog * dialog = findOrBuild(name, false);
3636                 if (dialog) {
3637                         bool const visible = dialog->isVisibleView();
3638                         dialog->showData(data);
3639                         if (inset && currentBufferView())
3640                                 currentBufferView()->editInset(name, inset);
3641                         // We only set the focus to the new dialog if it was not yet
3642                         // visible in order not to change the existing previous behaviour
3643                         if (visible) {
3644                                 // activateWindow is needed for floating dockviews
3645                                 dialog->asQWidget()->raise();
3646                                 dialog->asQWidget()->activateWindow();
3647                                 dialog->asQWidget()->setFocus();
3648                         }
3649                 }
3650         }
3651         catch (ExceptionMessage const & ex) {
3652                 d.in_show_ = false;
3653                 throw ex;
3654         }
3655         d.in_show_ = false;
3656 }
3657
3658
3659 bool GuiView::isDialogVisible(string const & name) const
3660 {
3661         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3662         if (it == d.dialogs_.end())
3663                 return false;
3664         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
3665 }
3666
3667
3668 void GuiView::hideDialog(string const & name, Inset * inset)
3669 {
3670         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3671         if (it == d.dialogs_.end())
3672                 return;
3673
3674         if (inset && currentBufferView()
3675                 && inset != currentBufferView()->editedInset(name))
3676                 return;
3677
3678         Dialog * const dialog = it->second.get();
3679         if (dialog->isVisibleView())
3680                 dialog->hideView();
3681         if (currentBufferView())
3682                 currentBufferView()->editInset(name, 0);
3683 }
3684
3685
3686 void GuiView::disconnectDialog(string const & name)
3687 {
3688         if (!isValidName(name))
3689                 return;
3690         if (currentBufferView())
3691                 currentBufferView()->editInset(name, 0);
3692 }
3693
3694
3695 void GuiView::hideAll() const
3696 {
3697         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3698         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3699
3700         for(; it != end; ++it)
3701                 it->second->hideView();
3702 }
3703
3704
3705 void GuiView::updateDialogs()
3706 {
3707         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3708         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3709
3710         for(; it != end; ++it) {
3711                 Dialog * dialog = it->second.get();
3712                 if (dialog) {
3713                         if (dialog->needBufferOpen() && !documentBufferView())
3714                                 hideDialog(fromqstr(dialog->name()), 0);
3715                         else if (dialog->isVisibleView())
3716                                 dialog->checkStatus();
3717                 }
3718         }
3719         updateToolbars();
3720         updateLayoutList();
3721 }
3722
3723 Dialog * createDialog(GuiView & lv, string const & name);
3724
3725 // will be replaced by a proper factory...
3726 Dialog * createGuiAbout(GuiView & lv);
3727 Dialog * createGuiBibtex(GuiView & lv);
3728 Dialog * createGuiChanges(GuiView & lv);
3729 Dialog * createGuiCharacter(GuiView & lv);
3730 Dialog * createGuiCitation(GuiView & lv);
3731 Dialog * createGuiCompare(GuiView & lv);
3732 Dialog * createGuiCompareHistory(GuiView & lv);
3733 Dialog * createGuiDelimiter(GuiView & lv);
3734 Dialog * createGuiDocument(GuiView & lv);
3735 Dialog * createGuiErrorList(GuiView & lv);
3736 Dialog * createGuiExternal(GuiView & lv);
3737 Dialog * createGuiGraphics(GuiView & lv);
3738 Dialog * createGuiInclude(GuiView & lv);
3739 Dialog * createGuiIndex(GuiView & lv);
3740 Dialog * createGuiListings(GuiView & lv);
3741 Dialog * createGuiLog(GuiView & lv);
3742 Dialog * createGuiMathMatrix(GuiView & lv);
3743 Dialog * createGuiNote(GuiView & lv);
3744 Dialog * createGuiParagraph(GuiView & lv);
3745 Dialog * createGuiPhantom(GuiView & lv);
3746 Dialog * createGuiPreferences(GuiView & lv);
3747 Dialog * createGuiPrint(GuiView & lv);
3748 Dialog * createGuiPrintindex(GuiView & lv);
3749 Dialog * createGuiRef(GuiView & lv);
3750 Dialog * createGuiSearch(GuiView & lv);
3751 Dialog * createGuiSearchAdv(GuiView & lv);
3752 Dialog * createGuiSendTo(GuiView & lv);
3753 Dialog * createGuiShowFile(GuiView & lv);
3754 Dialog * createGuiSpellchecker(GuiView & lv);
3755 Dialog * createGuiSymbols(GuiView & lv);
3756 Dialog * createGuiTabularCreate(GuiView & lv);
3757 Dialog * createGuiTexInfo(GuiView & lv);
3758 Dialog * createGuiToc(GuiView & lv);
3759 Dialog * createGuiThesaurus(GuiView & lv);
3760 Dialog * createGuiViewSource(GuiView & lv);
3761 Dialog * createGuiWrap(GuiView & lv);
3762 Dialog * createGuiProgressView(GuiView & lv);
3763
3764
3765
3766 Dialog * GuiView::build(string const & name)
3767 {
3768         LASSERT(isValidName(name), return 0);
3769
3770         Dialog * dialog = createDialog(*this, name);
3771         if (dialog)
3772                 return dialog;
3773
3774         if (name == "aboutlyx")
3775                 return createGuiAbout(*this);
3776         if (name == "bibtex")
3777                 return createGuiBibtex(*this);
3778         if (name == "changes")
3779                 return createGuiChanges(*this);
3780         if (name == "character")
3781                 return createGuiCharacter(*this);
3782         if (name == "citation")
3783                 return createGuiCitation(*this);
3784         if (name == "compare")
3785                 return createGuiCompare(*this);
3786         if (name == "comparehistory")
3787                 return createGuiCompareHistory(*this);
3788         if (name == "document")
3789                 return createGuiDocument(*this);
3790         if (name == "errorlist")
3791                 return createGuiErrorList(*this);
3792         if (name == "external")
3793                 return createGuiExternal(*this);
3794         if (name == "file")
3795                 return createGuiShowFile(*this);
3796         if (name == "findreplace")
3797                 return createGuiSearch(*this);
3798         if (name == "findreplaceadv")
3799                 return createGuiSearchAdv(*this);
3800         if (name == "graphics")
3801                 return createGuiGraphics(*this);
3802         if (name == "include")
3803                 return createGuiInclude(*this);
3804         if (name == "index")
3805                 return createGuiIndex(*this);
3806         if (name == "index_print")
3807                 return createGuiPrintindex(*this);
3808         if (name == "listings")
3809                 return createGuiListings(*this);
3810         if (name == "log")
3811                 return createGuiLog(*this);
3812         if (name == "mathdelimiter")
3813                 return createGuiDelimiter(*this);
3814         if (name == "mathmatrix")
3815                 return createGuiMathMatrix(*this);
3816         if (name == "note")
3817                 return createGuiNote(*this);
3818         if (name == "paragraph")
3819                 return createGuiParagraph(*this);
3820         if (name == "phantom")
3821                 return createGuiPhantom(*this);
3822         if (name == "prefs")
3823                 return createGuiPreferences(*this);
3824         if (name == "print")
3825                 return createGuiPrint(*this);
3826         if (name == "ref")
3827                 return createGuiRef(*this);
3828         if (name == "sendto")
3829                 return createGuiSendTo(*this);
3830         if (name == "spellchecker")
3831                 return createGuiSpellchecker(*this);
3832         if (name == "symbols")
3833                 return createGuiSymbols(*this);
3834         if (name == "tabularcreate")
3835                 return createGuiTabularCreate(*this);
3836         if (name == "texinfo")
3837                 return createGuiTexInfo(*this);
3838         if (name == "thesaurus")
3839                 return createGuiThesaurus(*this);
3840         if (name == "toc")
3841                 return createGuiToc(*this);
3842         if (name == "view-source")
3843                 return createGuiViewSource(*this);
3844         if (name == "wrap")
3845                 return createGuiWrap(*this);
3846         if (name == "progress")
3847                 return createGuiProgressView(*this);
3848
3849         return 0;
3850 }
3851
3852
3853 } // namespace frontend
3854 } // namespace lyx
3855
3856 #include "moc_GuiView.cpp"