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 #include "support/filetools.h"
  36
  37 #include "frontends/alert.h"
  38 #include "frontends/KeySymbol.h"
  39
  40 #include "buffer_funcs.h"
  41 #include "Buffer.h"
  42 #include "BufferList.h"
  43 #include "BufferParams.h"
  44 #include "BufferView.h"
  45 #include "Compare.h"
  46 #include "Converter.h"
  47 #include "Cursor.h"
  48 #include "CutAndPaste.h"
  49 #include "Encoding.h"
  50 #include "ErrorList.h"
  51 #include "Format.h"
  52 #include "FuncStatus.h"
  53 #include "FuncRequest.h"
  54 #include "Intl.h"
  55 #include "Layout.h"
  56 #include "Lexer.h"
  57 #include "LyXAction.h"
  58 #include "LyX.h"
  59 #include "LyXRC.h"
  60 #include "LyXVC.h"
  61 #include "Paragraph.h"
  62 #include "SpellChecker.h"
  63 #include "Session.h"
  64 #include "TexRow.h"
  65 #include "TextClass.h"
  66 #include "Text.h"
  67 #include "Toolbars.h"
  68 #include "version.h"
  69
  70 #include "support/convert.h"
  71 #include "support/debug.h"
  72 #include "support/ExceptionMessage.h"
  73 #include "support/FileName.h"
  74 #include "support/filetools.h"
  75 #include "support/gettext.h"
  76 #include "support/filetools.h"
  77 #include "support/ForkedCalls.h"
  78 #include "support/lassert.h"
  79 #include "support/lstrings.h"
  80 #include "support/os.h"
  81 #include "support/Package.h"
  82 #include "support/PathChanger.h"
  83 #include "support/Systemcall.h"
  84 #include "support/Timeout.h"
  85 #include "support/ProgressInterface.h"
  86
  87 #include <QAction>
  88 #include <QApplication>
  89 #include <QCloseEvent>
  90 #include <QDebug>
  91 #include <QDesktopWidget>
  92 #include <QDragEnterEvent>
  93 #include <QDropEvent>
  94 #include <QFuture>
  95 #include <QFutureWatcher>
  96 #include <QLabel>
  97 #include <QList>
  98 #include <QMenu>
  99 #include <QMenuBar>
 100 #include <QMimeData>
 101 #include <QMovie>
 102 #include <QPainter>
 103 #include <QPixmap>
 104 #include <QPixmapCache>
 105 #include <QPoint>
 106 #include <QPushButton>
 107 #include <QScrollBar>
 108 #include <QSettings>
 109 #include <QShowEvent>
 110 #include <QSplitter>
 111 #include <QStackedWidget>
 112 #include <QStatusBar>
 113 #if QT_VERSION >= 0x050000
 114 #include <QSvgRenderer>
 115 #endif
 116 #include <QtConcurrentRun>
 117 #include <QTime>
 118 #include <QTimer>
 119 #include <QToolBar>
 120 #include <QUrl>
 121
 122
 123
 124 // sync with GuiAlert.cpp
 125 #define EXPORT_in_THREAD 1
 126
 127
 128 #include "support/bind.h"
 129
 130 #include <sstream>
 131
 132 #ifdef HAVE_SYS_TIME_H
 133 # include <sys/time.h>
 134 #endif
 135 #ifdef HAVE_UNISTD_H
 136 # include <unistd.h>
 137 #endif
 138
 139
 140 using namespace std;
 141 using namespace lyx::support;
 142
 143 namespace lyx {
 144
 145 using support::addExtension;
 146 using support::changeExtension;
 147 using support::removeExtension;
 148
 149 namespace frontend {
 150
 151 namespace {
 152
 153 class BackgroundWidget : public QWidget
 154 {
 155 public:
 156         BackgroundWidget(int width, int height)
 157                 : width_(width), height_(height)
 158         {
 159                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 160                 if (!lyxrc.show_banner)
 161                         return;
 162                 /// The text to be written on top of the pixmap
 163                 QString const text = lyx_version ?
 164                         qt_("version ") + lyx_version : qt_("unknown version");
 165 #if QT_VERSION >= 0x050000
 166                 QString imagedir = "images/";
 167                 FileName fname = imageLibFileSearch(imagedir, "banner", "svgz");
 168                 QSvgRenderer svgRenderer(toqstr(fname.absFileName()));
 169                 if (svgRenderer.isValid()) {
 170                         splash_ = QPixmap(splashSize());
 171                         QPainter painter(&splash_);
 172                         svgRenderer.render(&painter);
 173                         splash_.setDevicePixelRatio(pixelRatio());
 174                 } else {
 175                         splash_ = getPixmap("images/", "banner", "png");
 176                 }
 177 #else
 178                 splash_ = getPixmap("images/", "banner", "svgz,png");
 179 #endif
 180
 181                 QPainter pain(&splash_);
 182                 pain.setPen(QColor(0, 0, 0));
 183                 qreal const fsize = fontSize();
 184                 QPointF const position = textPosition();
 185                 LYXERR(Debug::GUI,
 186                         "widget pixel ratio: " << pixelRatio() <<
 187                         " splash pixel ratio: " << splashPixelRatio() <<
 188                         " version text size,position: " << fsize << "@" << position.x() << "+" << position.y());
 189                 QFont font;
 190                 // The font used to display the version info
 191                 font.setStyleHint(QFont::SansSerif);
 192                 font.setWeight(QFont::Bold);
 193                 font.setPointSizeF(fsize);
 194                 pain.setFont(font);
 195                 pain.drawText(position, text);
 196                 setFocusPolicy(Qt::StrongFocus);
 197         }
 198
 199         void paintEvent(QPaintEvent *)
 200         {
 201                 int const w = width_;
 202                 int const h = height_;
 203                 int const x = (width() - w) / 2;
 204                 int const y = (height() - h) / 2;
 205                 LYXERR(Debug::GUI,
 206                         "widget pixel ratio: " << pixelRatio() <<
 207                         " splash pixel ratio: " << splashPixelRatio() <<
 208                         " paint pixmap: " << w << "x" << h << "@" << x << "+" << y);
 209                 QPainter pain(this);
 210                 pain.drawPixmap(x, y, w, h, splash_);
 211         }
 212
 213         void keyPressEvent(QKeyEvent * ev)
 214         {
 215                 KeySymbol sym;
 216                 setKeySymbol(&sym, ev);
 217                 if (sym.isOK()) {
 218                         guiApp->processKeySym(sym, q_key_state(ev->modifiers()));
 219                         ev->accept();
 220                 } else {
 221                         ev->ignore();
 222                 }
 223         }
 224
 225 private:
 226         QPixmap splash_;
 227         int const width_;
 228         int const height_;
 229
 230         /// Current ratio between physical pixels and device-independent pixels
 231         double pixelRatio() const {
 232 #if QT_VERSION >= 0x050000
 233                 return devicePixelRatio();
 234 #else
 235                 return 1.0;
 236 #endif
 237         }
 238
 239         qreal fontSize() const {
 240                 return toqstr(lyxrc.font_sizes[FONT_SIZE_NORMAL]).toDouble();
 241         }
 242
 243         QPointF textPosition() const {
 244                 return QPointF(width_/2 - 18, height_/2 + 45);
 245         }
 246
 247         QSize splashSize() const {
 248                 return QSize(
 249                         static_cast<unsigned int>(width_ * pixelRatio()),
 250                         static_cast<unsigned int>(height_ * pixelRatio()));
 251         }
 252
 253         /// Ratio between physical pixels and device-independent pixels of splash image
 254         double splashPixelRatio() const {
 255 #if QT_VERSION >= 0x050000
 256                 return splash_.devicePixelRatio();
 257 #else
 258                 return 1.0;
 259 #endif
 260         }
 261 };
 262
 263
 264 /// Toolbar store providing access to individual toolbars by name.
 265 typedef map<string, GuiToolbar *> ToolbarMap;
 266
 267 typedef shared_ptr<Dialog> DialogPtr;
 268
 269 } // namespace anon
 270
 271
 272 class GuiView::GuiViewPrivate
 273 {
 274         /// noncopyable
 275         GuiViewPrivate(GuiViewPrivate const &);
 276         void operator=(GuiViewPrivate const &);
 277 public:
 278         GuiViewPrivate(GuiView * gv)
 279                 : gv_(gv), current_work_area_(0), current_main_work_area_(0),
 280                 layout_(0), autosave_timeout_(5000),
 281                 in_show_(false)
 282         {
 283                 // hardcode here the platform specific icon size
 284                 smallIconSize = 16;  // scaling problems
 285                 normalIconSize = 20; // ok, default if iconsize.png is missing
 286                 bigIconSize = 26;       // better for some math icons
 287                 hugeIconSize = 32;      // better for hires displays
 288                 giantIconSize = 48;
 289
 290                 // if it exists, use width of iconsize.png as normal size
 291                 QString const dir = toqstr(addPath("images", lyxrc.icon_set));
 292                 FileName const fn = lyx::libFileSearch(dir, "iconsize.png");
 293                 if (!fn.empty()) {
 294                         QImage image(toqstr(fn.absFileName()));
 295                         if (image.width() < int(smallIconSize))
 296                                 normalIconSize = smallIconSize;
 297                         else if (image.width() > int(giantIconSize))
 298                                 normalIconSize = giantIconSize;
 299                         else
 300                                 normalIconSize = image.width();
 301                 }
 302
 303                 splitter_ = new QSplitter;
 304                 bg_widget_ = new BackgroundWidget(400, 250);
 305                 stack_widget_ = new QStackedWidget;
 306                 stack_widget_->addWidget(bg_widget_);
 307                 stack_widget_->addWidget(splitter_);
 308                 setBackground();
 309
 310                 // TODO cleanup, remove the singleton, handle multiple Windows?
 311                 progress_ = ProgressInterface::instance();
 312                 if (!dynamic_cast<GuiProgress*>(progress_)) {
 313                         progress_ = new GuiProgress;  // TODO who deletes it
 314                         ProgressInterface::setInstance(progress_);
 315                 }
 316                 QObject::connect(
 317                                 dynamic_cast<GuiProgress*>(progress_),
 318                                 SIGNAL(updateStatusBarMessage(QString const&)),
 319                                 gv, SLOT(updateStatusBarMessage(QString const&)));
 320                 QObject::connect(
 321                                 dynamic_cast<GuiProgress*>(progress_),
 322                                 SIGNAL(clearMessageText()),
 323                                 gv, SLOT(clearMessageText()));
 324         }
 325
 326         ~GuiViewPrivate()
 327         {
 328                 delete splitter_;
 329                 delete bg_widget_;
 330                 delete stack_widget_;
 331         }
 332
 333         QMenu * toolBarPopup(GuiView * parent)
 334         {
 335                 // FIXME: translation
 336                 QMenu * menu = new QMenu(parent);
 337                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 338
 339                 QAction * smallIcons = new QAction(iconSizeGroup);
 340                 smallIcons->setText(qt_("Small-sized icons"));
 341                 smallIcons->setCheckable(true);
 342                 QObject::connect(smallIcons, SIGNAL(triggered()),
 343                         parent, SLOT(smallSizedIcons()));
 344                 menu->addAction(smallIcons);
 345
 346                 QAction * normalIcons = new QAction(iconSizeGroup);
 347                 normalIcons->setText(qt_("Normal-sized icons"));
 348                 normalIcons->setCheckable(true);
 349                 QObject::connect(normalIcons, SIGNAL(triggered()),
 350                         parent, SLOT(normalSizedIcons()));
 351                 menu->addAction(normalIcons);
 352
 353                 QAction * bigIcons = new QAction(iconSizeGroup);
 354                 bigIcons->setText(qt_("Big-sized icons"));
 355                 bigIcons->setCheckable(true);
 356                 QObject::connect(bigIcons, SIGNAL(triggered()),
 357                         parent, SLOT(bigSizedIcons()));
 358                 menu->addAction(bigIcons);
 359
 360                 QAction * hugeIcons = new QAction(iconSizeGroup);
 361                 hugeIcons->setText(qt_("Huge-sized icons"));
 362                 hugeIcons->setCheckable(true);
 363                 QObject::connect(hugeIcons, SIGNAL(triggered()),
 364                         parent, SLOT(hugeSizedIcons()));
 365                 menu->addAction(hugeIcons);
 366
 367                 QAction * giantIcons = new QAction(iconSizeGroup);
 368                 giantIcons->setText(qt_("Giant-sized icons"));
 369                 giantIcons->setCheckable(true);
 370                 QObject::connect(giantIcons, SIGNAL(triggered()),
 371                         parent, SLOT(giantSizedIcons()));
 372                 menu->addAction(giantIcons);
 373
 374                 unsigned int cur = parent->iconSize().width();
 375                 if ( cur == parent->d.smallIconSize)
 376                         smallIcons->setChecked(true);
 377                 else if (cur == parent->d.normalIconSize)
 378                         normalIcons->setChecked(true);
 379                 else if (cur == parent->d.bigIconSize)
 380                         bigIcons->setChecked(true);
 381                 else if (cur == parent->d.hugeIconSize)
 382                         hugeIcons->setChecked(true);
 383                 else if (cur == parent->d.giantIconSize)
 384                         giantIcons->setChecked(true);
 385
 386                 return menu;
 387         }
 388
 389         void setBackground()
 390         {
 391                 stack_widget_->setCurrentWidget(bg_widget_);
 392                 bg_widget_->setUpdatesEnabled(true);
 393                 bg_widget_->setFocus();
 394         }
 395
 396         int tabWorkAreaCount()
 397         {
 398                 return splitter_->count();
 399         }
 400
 401         TabWorkArea * tabWorkArea(int i)
 402         {
 403                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 404         }
 405
 406         TabWorkArea * currentTabWorkArea()
 407         {
 408                 int areas = tabWorkAreaCount();
 409                 if (areas == 1)
 410                         // The first TabWorkArea is always the first one, if any.
 411                         return tabWorkArea(0);
 412
 413                 for (int i = 0; i != areas;  ++i) {
 414                         TabWorkArea * twa = tabWorkArea(i);
 415                         if (current_main_work_area_ == twa->currentWorkArea())
 416                                 return twa;
 417                 }
 418
 419                 // None has the focus so we just take the first one.
 420                 return tabWorkArea(0);
 421         }
 422
 423         int countWorkAreasOf(Buffer & buf)
 424         {
 425                 int areas = tabWorkAreaCount();
 426                 int count = 0;
 427                 for (int i = 0; i != areas;  ++i) {
 428                         TabWorkArea * twa = tabWorkArea(i);
 429                         if (twa->workArea(buf))
 430                                 ++count;
 431                 }
 432                 return count;
 433         }
 434
 435         void setPreviewFuture(QFuture<Buffer::ExportStatus> const & f)
 436         {
 437                 if (processing_thread_watcher_.isRunning()) {
 438                         // we prefer to cancel this preview in order to keep a snappy
 439                         // interface.
 440                         return;
 441                 }
 442                 processing_thread_watcher_.setFuture(f);
 443         }
 444
 445 public:
 446         GuiView * gv_;
 447         GuiWorkArea * current_work_area_;
 448         GuiWorkArea * current_main_work_area_;
 449         QSplitter * splitter_;
 450         QStackedWidget * stack_widget_;
 451         BackgroundWidget * bg_widget_;
 452         /// view's toolbars
 453         ToolbarMap toolbars_;
 454         ProgressInterface* progress_;
 455         /// The main layout box.
 456         /**
 457          * \warning Don't Delete! The layout box is actually owned by
 458          * whichever toolbar contains it. All the GuiView class needs is a
 459          * means of accessing it.
 460          *
 461          * FIXME: replace that with a proper model so that we are not limited
 462          * to only one dialog.
 463          */
 464         LayoutBox * layout_;
 465
 466         ///
 467         map<string, DialogPtr> dialogs_;
 468
 469         unsigned int smallIconSize;
 470         unsigned int normalIconSize;
 471         unsigned int bigIconSize;
 472         unsigned int hugeIconSize;
 473         unsigned int giantIconSize;
 474         ///
 475         QTimer statusbar_timer_;
 476         /// auto-saving of buffers
 477         Timeout autosave_timeout_;
 478         /// flag against a race condition due to multiclicks, see bug #1119
 479         bool in_show_;
 480
 481         ///
 482         TocModels toc_models_;
 483
 484         ///
 485         QFutureWatcher<docstring> autosave_watcher_;
 486         QFutureWatcher<Buffer::ExportStatus> processing_thread_watcher_;
 487         ///
 488         string last_export_format;
 489         string processing_format;
 490
 491         static QSet<Buffer const *> busyBuffers;
 492         static Buffer::ExportStatus previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 493         static Buffer::ExportStatus exportAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 494         static Buffer::ExportStatus compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 495         static docstring autosaveAndDestroy(Buffer const * orig, Buffer * buffer);
 496
 497         template<class T>
 498         static Buffer::ExportStatus runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format);
 499
 500         // TODO syncFunc/previewFunc: use bind
 501         bool asyncBufferProcessing(string const & argument,
 502                                    Buffer const * used_buffer,
 503                                    docstring const & msg,
 504                                    Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
 505                                    Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
 506                                    Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const);
 507
 508         QVector<GuiWorkArea*> guiWorkAreas();
 509 };
 510
 511 QSet<Buffer const *> GuiView::GuiViewPrivate::busyBuffers;
 512
 513
 514 GuiView::GuiView(int id)
 515         : d(*new GuiViewPrivate(this)), id_(id), closing_(false), busy_(0),
 516           command_execute_(false)
 517 {
 518         // GuiToolbars *must* be initialised before the menu bar.
 519         normalSizedIcons(); // at least on Mac the default is 32 otherwise, which is huge
 520         constructToolbars();
 521
 522         // set ourself as the current view. This is needed for the menu bar
 523         // filling, at least for the static special menu item on Mac. Otherwise
 524         // they are greyed out.
 525         guiApp->setCurrentView(this);
 526
 527         // Fill up the menu bar.
 528         guiApp->menus().fillMenuBar(menuBar(), this, true);
 529
 530         setCentralWidget(d.stack_widget_);
 531
 532         // Start autosave timer
 533         if (lyxrc.autosave) {
 534                 d.autosave_timeout_.timeout.connect(bind(&GuiView::autoSave, this));
 535                 d.autosave_timeout_.setTimeout(lyxrc.autosave * 1000);
 536                 d.autosave_timeout_.start();
 537         }
 538         connect(&d.statusbar_timer_, SIGNAL(timeout()),
 539                 this, SLOT(clearMessage()));
 540
 541         // We don't want to keep the window in memory if it is closed.
 542         setAttribute(Qt::WA_DeleteOnClose, true);
 543
 544 #if !(defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)) && !defined(Q_OS_MAC)
 545         // QIcon::fromTheme was introduced in Qt 4.6
 546 #if (QT_VERSION >= 0x040600)
 547         // assign an icon to main form. We do not do it under Qt/Win or Qt/Mac,
 548         // since the icon is provided in the application bundle. We use a themed
 549         // version when available and use the bundled one as fallback.
 550         setWindowIcon(QIcon::fromTheme("lyx", getPixmap("images/", "lyx", "svg,png")));
 551 #else
 552         setWindowIcon(getPixmap("images/", "lyx", "svg,png"));
 553 #endif
 554
 555 #endif
 556         resetWindowTitleAndIconText();
 557
 558         // use tabbed dock area for multiple docks
 559         // (such as "source" and "messages")
 560         setDockOptions(QMainWindow::ForceTabbedDocks);
 561
 562         // For Drag&Drop.
 563         setAcceptDrops(true);
 564
 565         // add busy indicator to statusbar
 566         QLabel * busylabel = new QLabel(statusBar());
 567         statusBar()->addPermanentWidget(busylabel);
 568         search_mode mode = theGuiApp()->imageSearchMode();
 569         QString fn = toqstr(lyx::libFileSearch("images", "busy", "gif", mode).absFileName());
 570         QMovie * busyanim = new QMovie(fn, QByteArray(), busylabel);
 571         busylabel->setMovie(busyanim);
 572         busyanim->start();
 573         busylabel->hide();
 574
 575         connect(&d.processing_thread_watcher_, SIGNAL(started()),
 576                 busylabel, SLOT(show()));
 577         connect(&d.processing_thread_watcher_, SIGNAL(finished()),
 578                 busylabel, SLOT(hide()));
 579
 580         statusBar()->setSizeGripEnabled(true);
 581         updateStatusBar();
 582
 583         connect(&d.autosave_watcher_, SIGNAL(finished()), this,
 584                 SLOT(autoSaveThreadFinished()));
 585
 586         connect(&d.processing_thread_watcher_, SIGNAL(started()), this,
 587                 SLOT(processingThreadStarted()));
 588         connect(&d.processing_thread_watcher_, SIGNAL(finished()), this,
 589                 SLOT(processingThreadFinished()));
 590
 591         connect(this, SIGNAL(triggerShowDialog(QString const &, QString const &, Inset *)),
 592                 SLOT(doShowDialog(QString const &, QString const &, Inset *)));
 593
 594         // Forbid too small unresizable window because it can happen
 595         // with some window manager under X11.
 596         setMinimumSize(300, 200);
 597
 598         if (lyxrc.allow_geometry_session) {
 599                 // Now take care of session management.
 600                 if (restoreLayout())
 601                         return;
 602         }
 603
 604         // no session handling, default to a sane size.
 605         setGeometry(50, 50, 690, 510);
 606         initToolbars();
 607
 608         // clear session data if any.
 609         QSettings settings;
 610         settings.remove("views");
 611 }
 612
 613
 614 GuiView::~GuiView()
 615 {
 616         delete &d;
 617 }
 618
 619
 620 QVector<GuiWorkArea*> GuiView::GuiViewPrivate::guiWorkAreas()
 621 {
 622         QVector<GuiWorkArea*> areas;
 623         for (int i = 0; i < tabWorkAreaCount(); i++) {
 624                 TabWorkArea* ta = tabWorkArea(i);
 625                 for (int u = 0; u < ta->count(); u++) {
 626                         areas << ta->workArea(u);
 627                 }
 628         }
 629         return areas;
 630 }
 631
 632 static void handleExportStatus(GuiView * view, Buffer::ExportStatus status,
 633         string const & format)
 634 {
 635         docstring const fmt = formats.prettyName(format);
 636         docstring msg;
 637         switch (status) {
 638         case Buffer::ExportSuccess:
 639                 msg = bformat(_("Successful export to format: %1$s"), fmt);
 640                 break;
 641         case Buffer::ExportCancel:
 642                 msg = _("Document export cancelled.");
 643                 break;
 644         case Buffer::ExportError:
 645         case Buffer::ExportNoPathToFormat:
 646         case Buffer::ExportTexPathHasSpaces:
 647         case Buffer::ExportConverterError:
 648                 msg = bformat(_("Error while exporting format: %1$s"), fmt);
 649                 break;
 650         case Buffer::PreviewSuccess:
 651                 msg = bformat(_("Successful preview of format: %1$s"), fmt);
 652                 break;
 653         case Buffer::PreviewError:
 654                 msg = bformat(_("Error while previewing format: %1$s"), fmt);
 655                 break;
 656         }
 657         view->message(msg);
 658 }
 659
 660
 661 void GuiView::processingThreadStarted()
 662 {
 663 }
 664
 665
 666 void GuiView::processingThreadFinished()
 667 {
 668         QFutureWatcher<Buffer::ExportStatus> const * watcher =
 669                 static_cast<QFutureWatcher<Buffer::ExportStatus> const *>(sender());
 670
 671         Buffer::ExportStatus const status = watcher->result();
 672         handleExportStatus(this, status, d.processing_format);
 673
 674         updateToolbars();
 675         BufferView const * const bv = currentBufferView();
 676         if (bv && !bv->buffer().errorList("Export").empty()) {
 677                 errors("Export");
 678                 return;
 679         }
 680         errors(d.last_export_format);
 681 }
 682
 683
 684 void GuiView::autoSaveThreadFinished()
 685 {
 686         QFutureWatcher<docstring> const * watcher =
 687                 static_cast<QFutureWatcher<docstring> const *>(sender());
 688         message(watcher->result());
 689         updateToolbars();
 690 }
 691
 692
 693 void GuiView::saveLayout() const
 694 {
 695         QSettings settings;
 696         settings.beginGroup("views");
 697         settings.beginGroup(QString::number(id_));
 698 #if defined(Q_WS_X11) || defined(QPA_XCB)
 699         settings.setValue("pos", pos());
 700         settings.setValue("size", size());
 701 #else
 702         settings.setValue("geometry", saveGeometry());
 703 #endif
 704         settings.setValue("layout", saveState(0));
 705         settings.setValue("icon_size", iconSize());
 706 }
 707
 708
 709 void GuiView::saveUISettings() const
 710 {
 711         // Save the toolbar private states
 712         ToolbarMap::iterator end = d.toolbars_.end();
 713         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
 714                 it->second->saveSession();
 715         // Now take care of all other dialogs
 716         map<string, DialogPtr>::const_iterator it = d.dialogs_.begin();
 717         for (; it!= d.dialogs_.end(); ++it)
 718                 it->second->saveSession();
 719 }
 720
 721
 722 bool GuiView::restoreLayout()
 723 {
 724         QSettings settings;
 725         settings.beginGroup("views");
 726         settings.beginGroup(QString::number(id_));
 727         QString const icon_key = "icon_size";
 728         if (!settings.contains(icon_key))
 729                 return false;
 730
 731         //code below is skipped when when ~/.config/LyX is (re)created
 732         QSize icon_size = settings.value(icon_key).toSize();
 733         // Check whether session size changed.
 734         if (icon_size.width() != int(d.smallIconSize) &&
 735             icon_size.width() != int(d.normalIconSize) &&
 736             icon_size.width() != int(d.bigIconSize) &&
 737             icon_size.width() != int(d.hugeIconSize) &&
 738             icon_size.width() != int(d.giantIconSize)) {
 739                 icon_size.setWidth(d.normalIconSize);
 740                 icon_size.setHeight(d.normalIconSize);
 741         }
 742         setIconSize(icon_size);
 743
 744 #if defined(Q_WS_X11) || defined(QPA_XCB)
 745         QPoint pos = settings.value("pos", QPoint(50, 50)).toPoint();
 746         QSize size = settings.value("size", QSize(690, 510)).toSize();
 747         resize(size);
 748         move(pos);
 749 #else
 750         // Work-around for bug #6034: the window ends up in an undetermined
 751         // state when trying to restore a maximized window when it is
 752         // already maximized.
 753         if (!(windowState() & Qt::WindowMaximized))
 754                 if (!restoreGeometry(settings.value("geometry").toByteArray()))
 755                         setGeometry(50, 50, 690, 510);
 756 #endif
 757         // Make sure layout is correctly oriented.
 758         setLayoutDirection(qApp->layoutDirection());
 759
 760         // Allow the toc and view-source dock widget to be restored if needed.
 761         Dialog * dialog;
 762         if ((dialog = findOrBuild("toc", true)))
 763                 // see bug 5082. At least setup title and enabled state.
 764                 // Visibility will be adjusted by restoreState below.
 765                 dialog->prepareView();
 766         if ((dialog = findOrBuild("view-source", true)))
 767                 dialog->prepareView();
 768         if ((dialog = findOrBuild("progress", true)))
 769                 dialog->prepareView();
 770
 771         if (!restoreState(settings.value("layout").toByteArray(), 0))
 772                 initToolbars();
 773
 774         // init the toolbars that have not been restored
 775         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 776         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 777         for (; cit != end; ++cit) {
 778                 GuiToolbar * tb = toolbar(cit->name);
 779                 if (tb && !tb->isRestored())
 780                         initToolbar(cit->name);
 781         }
 782
 783         updateDialogs();
 784         return true;
 785 }
 786
 787
 788 GuiToolbar * GuiView::toolbar(string const & name)
 789 {
 790         ToolbarMap::iterator it = d.toolbars_.find(name);
 791         if (it != d.toolbars_.end())
 792                 return it->second;
 793
 794         LYXERR(Debug::GUI, "Toolbar::display: no toolbar named " << name);
 795         return 0;
 796 }
 797
 798
 799 void GuiView::constructToolbars()
 800 {
 801         ToolbarMap::iterator it = d.toolbars_.begin();
 802         for (; it != d.toolbars_.end(); ++it)
 803                 delete it->second;
 804         d.toolbars_.clear();
 805
 806         // I don't like doing this here, but the standard toolbar
 807         // destroys this object when it's destroyed itself (vfr)
 808         d.layout_ = new LayoutBox(*this);
 809         d.stack_widget_->addWidget(d.layout_);
 810         d.layout_->move(0,0);
 811
 812         // extracts the toolbars from the backend
 813         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 814         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 815         for (; cit != end; ++cit)
 816                 d.toolbars_[cit->name] =  new GuiToolbar(*cit, *this);
 817 }
 818
 819
 820 void GuiView::initToolbars()
 821 {
 822         // extracts the toolbars from the backend
 823         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 824         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 825         for (; cit != end; ++cit)
 826                 initToolbar(cit->name);
 827 }
 828
 829
 830 void GuiView::initToolbar(string const & name)
 831 {
 832         GuiToolbar * tb = toolbar(name);
 833         if (!tb)
 834                 return;
 835         int const visibility = guiApp->toolbars().defaultVisibility(name);
 836         bool newline = !(visibility & Toolbars::SAMEROW);
 837         tb->setVisible(false);
 838         tb->setVisibility(visibility);
 839
 840         if (visibility & Toolbars::TOP) {
 841                 if (newline)
 842                         addToolBarBreak(Qt::TopToolBarArea);
 843                 addToolBar(Qt::TopToolBarArea, tb);
 844         }
 845
 846         if (visibility & Toolbars::BOTTOM) {
 847                 if (newline)
 848                         addToolBarBreak(Qt::BottomToolBarArea);
 849                 addToolBar(Qt::BottomToolBarArea, tb);
 850         }
 851
 852         if (visibility & Toolbars::LEFT) {
 853                 if (newline)
 854                         addToolBarBreak(Qt::LeftToolBarArea);
 855                 addToolBar(Qt::LeftToolBarArea, tb);
 856         }
 857
 858         if (visibility & Toolbars::RIGHT) {
 859                 if (newline)
 860                         addToolBarBreak(Qt::RightToolBarArea);
 861                 addToolBar(Qt::RightToolBarArea, tb);
 862         }
 863
 864         if (visibility & Toolbars::ON)
 865                 tb->setVisible(true);
 866 }
 867
 868
 869 TocModels & GuiView::tocModels()
 870 {
 871         return d.toc_models_;
 872 }
 873
 874
 875 void GuiView::setFocus()
 876 {
 877         LYXERR(Debug::DEBUG, "GuiView::setFocus()" << this);
 878         QMainWindow::setFocus();
 879 }
 880
 881
 882 bool GuiView::hasFocus() const
 883 {
 884         if (currentWorkArea())
 885                 return currentWorkArea()->hasFocus();
 886         if (currentMainWorkArea())
 887                 return currentMainWorkArea()->hasFocus();
 888         return d.bg_widget_->hasFocus();
 889 }
 890
 891
 892 void GuiView::focusInEvent(QFocusEvent * e)
 893 {
 894         LYXERR(Debug::DEBUG, "GuiView::focusInEvent()" << this);
 895         QMainWindow::focusInEvent(e);
 896         // Make sure guiApp points to the correct view.
 897         guiApp->setCurrentView(this);
 898         if (currentWorkArea())
 899                 currentWorkArea()->setFocus();
 900         else if (currentMainWorkArea())
 901                 currentMainWorkArea()->setFocus();
 902         else
 903                 d.bg_widget_->setFocus();
 904 }
 905
 906
 907 QMenu * GuiView::createPopupMenu()
 908 {
 909         return d.toolBarPopup(this);
 910 }
 911
 912
 913 void GuiView::showEvent(QShowEvent * e)
 914 {
 915         LYXERR(Debug::GUI, "Passed Geometry "
 916                 << size().height() << "x" << size().width()
 917                 << "+" << pos().x() << "+" << pos().y());
 918
 919         if (d.splitter_->count() == 0)
 920                 // No work area, switch to the background widget.
 921                 d.setBackground();
 922
 923         updateToolbars();
 924         QMainWindow::showEvent(e);
 925 }
 926
 927
 928 bool GuiView::closeScheduled()
 929 {
 930         closing_ = true;
 931         return close();
 932 }
 933
 934
 935 bool GuiView::prepareAllBuffersForLogout()
 936 {
 937         Buffer * first = theBufferList().first();
 938         if (!first)
 939                 return true;
 940
 941         // First, iterate over all buffers and ask the users if unsaved
 942         // changes should be saved.
 943         // We cannot use a for loop as the buffer list cycles.
 944         Buffer * b = first;
 945         do {
 946                 if (!saveBufferIfNeeded(const_cast<Buffer &>(*b), false))
 947                         return false;
 948                 b = theBufferList().next(b);
 949         } while (b != first);
 950
 951         // Next, save session state
 952         // When a view/window was closed before without quitting LyX, there
 953         // are already entries in the lastOpened list.
 954         theSession().lastOpened().clear();
 955         writeSession();
 956
 957         return true;
 958 }
 959
 960
 961 /** Destroy only all tabbed WorkAreas. Destruction of other WorkAreas
 962  ** is responsibility of the container (e.g., dialog)
 963  **/
 964 void GuiView::closeEvent(QCloseEvent * close_event)
 965 {
 966         LYXERR(Debug::DEBUG, "GuiView::closeEvent()");
 967
 968         if (!GuiViewPrivate::busyBuffers.isEmpty()) {
 969                 Alert::warning(_("Exit LyX"),
 970                         _("LyX could not be closed because documents are being processed by LyX."));
 971                 close_event->setAccepted(false);
 972                 return;
 973         }
 974
 975         // If the user pressed the x (so we didn't call closeView
 976         // programmatically), we want to clear all existing entries.
 977         if (!closing_)
 978                 theSession().lastOpened().clear();
 979         closing_ = true;
 980
 981         writeSession();
 982
 983         // it can happen that this event arrives without selecting the view,
 984         // e.g. when clicking the close button on a background window.
 985         setFocus();
 986         if (!closeWorkAreaAll()) {
 987                 closing_ = false;
 988                 close_event->ignore();
 989                 return;
 990         }
 991
 992         // Make sure that nothing will use this to be closed View.
 993         guiApp->unregisterView(this);
 994
 995         if (isFullScreen()) {
 996                 // Switch off fullscreen before closing.
 997                 toggleFullScreen();
 998                 updateDialogs();
 999         }
1000
1001         // Make sure the timer time out will not trigger a statusbar update.
1002         d.statusbar_timer_.stop();
1003
1004         // Saving fullscreen requires additional tweaks in the toolbar code.
1005         // It wouldn't also work under linux natively.
1006         if (lyxrc.allow_geometry_session) {
1007                 saveLayout();
1008                 saveUISettings();
1009         }
1010
1011         close_event->accept();
1012 }
1013
1014
1015 void GuiView::dragEnterEvent(QDragEnterEvent * event)
1016 {
1017         if (event->mimeData()->hasUrls())
1018                 event->accept();
1019         /// \todo Ask lyx-devel is this is enough:
1020         /// if (event->mimeData()->hasFormat("text/plain"))
1021         ///     event->acceptProposedAction();
1022 }
1023
1024
1025 void GuiView::dropEvent(QDropEvent * event)
1026 {
1027         QList<QUrl> files = event->mimeData()->urls();
1028         if (files.isEmpty())
1029                 return;
1030
1031         LYXERR(Debug::GUI, "GuiView::dropEvent: got URLs!");
1032         for (int i = 0; i != files.size(); ++i) {
1033                 string const file = os::internal_path(fromqstr(
1034                         files.at(i).toLocalFile()));
1035                 if (file.empty())
1036                         continue;
1037
1038                 string const ext = support::getExtension(file);
1039                 vector<const Format *> found_formats;
1040
1041                 // Find all formats that have the correct extension.
1042                 vector<const Format *> const & import_formats
1043                         = theConverters().importableFormats();
1044                 vector<const Format *>::const_iterator it = import_formats.begin();
1045                 for (; it != import_formats.end(); ++it)
1046                         if ((*it)->hasExtension(ext))
1047                                 found_formats.push_back(*it);
1048
1049                 FuncRequest cmd;
1050                 if (found_formats.size() >= 1) {
1051                         if (found_formats.size() > 1) {
1052                                 //FIXME: show a dialog to choose the correct importable format
1053                                 LYXERR(Debug::FILES,
1054                                         "Multiple importable formats found, selecting first");
1055                         }
1056                         string const arg = found_formats[0]->name() + " " + file;
1057                         cmd = FuncRequest(LFUN_BUFFER_IMPORT, arg);
1058                 }
1059                 else {
1060                         //FIXME: do we have to explicitly check whether it's a lyx file?
1061                         LYXERR(Debug::FILES,
1062                                 "No formats found, trying to open it as a lyx file");
1063                         cmd = FuncRequest(LFUN_FILE_OPEN, file);
1064                 }
1065                 // add the functions to the queue
1066                 guiApp->addToFuncRequestQueue(cmd);
1067                 event->accept();
1068         }
1069         // now process the collected functions. We perform the events
1070         // asynchronously. This prevents potential problems in case the
1071         // BufferView is closed within an event.
1072         guiApp->processFuncRequestQueueAsync();
1073 }
1074
1075
1076 void GuiView::message(docstring const & str)
1077 {
1078         if (ForkedProcess::iAmAChild())
1079                 return;
1080
1081         // call is moved to GUI-thread by GuiProgress
1082         d.progress_->appendMessage(toqstr(str));
1083 }
1084
1085
1086 void GuiView::clearMessageText()
1087 {
1088         message(docstring());
1089 }
1090
1091
1092 void GuiView::updateStatusBarMessage(QString const & str)
1093 {
1094         statusBar()->showMessage(str);
1095         d.statusbar_timer_.stop();
1096         d.statusbar_timer_.start(3000);
1097 }
1098
1099
1100 void GuiView::smallSizedIcons()
1101 {
1102         setIconSize(QSize(d.smallIconSize, d.smallIconSize));
1103 }
1104
1105
1106 void GuiView::normalSizedIcons()
1107 {
1108         setIconSize(QSize(d.normalIconSize, d.normalIconSize));
1109 }
1110
1111
1112 void GuiView::bigSizedIcons()
1113 {
1114         setIconSize(QSize(d.bigIconSize, d.bigIconSize));
1115 }
1116
1117
1118 void GuiView::hugeSizedIcons()
1119 {
1120         setIconSize(QSize(d.hugeIconSize, d.hugeIconSize));
1121 }
1122
1123
1124 void GuiView::giantSizedIcons()
1125 {
1126         setIconSize(QSize(d.giantIconSize, d.giantIconSize));
1127 }
1128
1129
1130 void GuiView::clearMessage()
1131 {
1132         // FIXME: This code was introduced in r19643 to fix bug #4123. However,
1133         // the hasFocus function mostly returns false, even if the focus is on
1134         // a workarea in this view.
1135         //if (!hasFocus())
1136         //      return;
1137         showMessage();
1138         d.statusbar_timer_.stop();
1139 }
1140
1141
1142 void GuiView::updateWindowTitle(GuiWorkArea * wa)
1143 {
1144         if (wa != d.current_work_area_
1145                 || wa->bufferView().buffer().isInternal())
1146                 return;
1147         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
1148         setWindowIconText(wa->windowIconText());
1149 #if (QT_VERSION >= 0x040400)
1150         // Sets the path for the window: this is used by OSX to
1151         // allow a context click on the title bar showing a menu
1152         // with the path up to the file
1153         setWindowFilePath(toqstr(wa->bufferView().buffer().absFileName()));
1154 #endif
1155 }
1156
1157
1158 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
1159 {
1160         if (d.current_work_area_)
1161                 QObject::disconnect(d.current_work_area_, SIGNAL(busy(bool)),
1162                         this, SLOT(setBusy(bool)));
1163         disconnectBuffer();
1164         disconnectBufferView();
1165         connectBufferView(wa->bufferView());
1166         connectBuffer(wa->bufferView().buffer());
1167         d.current_work_area_ = wa;
1168         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1169                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
1170         QObject::connect(wa, SIGNAL(busy(bool)), this, SLOT(setBusy(bool)));
1171         updateWindowTitle(wa);
1172
1173         structureChanged();
1174
1175         // The document settings needs to be reinitialised.
1176         updateDialog("document", "");
1177
1178         // Buffer-dependent dialogs must be updated. This is done here because
1179         // some dialogs require buffer()->text.
1180         updateDialogs();
1181 }
1182
1183
1184 void GuiView::on_lastWorkAreaRemoved()
1185 {
1186         if (closing_)
1187                 // We already are in a close event. Nothing more to do.
1188                 return;
1189
1190         if (d.splitter_->count() > 1)
1191                 // We have a splitter so don't close anything.
1192                 return;
1193
1194         // Reset and updates the dialogs.
1195         d.toc_models_.reset(0);
1196         updateDialog("document", "");
1197         updateDialogs();
1198
1199         resetWindowTitleAndIconText();
1200         updateStatusBar();
1201
1202         if (lyxrc.open_buffers_in_tabs)
1203                 // Nothing more to do, the window should stay open.
1204                 return;
1205
1206         if (guiApp->viewIds().size() > 1) {
1207                 close();
1208                 return;
1209         }
1210
1211 #ifdef Q_OS_MAC
1212         // On Mac we also close the last window because the application stay
1213         // resident in memory. On other platforms we don't close the last
1214         // window because this would quit the application.
1215         close();
1216 #endif
1217 }
1218
1219
1220 void GuiView::updateStatusBar()
1221 {
1222         // let the user see the explicit message
1223         if (d.statusbar_timer_.isActive())
1224                 return;
1225
1226         showMessage();
1227 }
1228
1229
1230 void GuiView::showMessage()
1231 {
1232         if (busy_)
1233                 return;
1234         QString msg = toqstr(theGuiApp()->viewStatusMessage());
1235         if (msg.isEmpty()) {
1236                 BufferView const * bv = currentBufferView();
1237                 if (bv)
1238                         msg = toqstr(bv->cursor().currentState());
1239                 else
1240                         msg = qt_("Welcome to LyX!");
1241         }
1242         statusBar()->showMessage(msg);
1243 }
1244
1245
1246 bool GuiView::event(QEvent * e)
1247 {
1248         switch (e->type())
1249         {
1250         // Useful debug code:
1251         //case QEvent::ActivationChange:
1252         //case QEvent::WindowDeactivate:
1253         //case QEvent::Paint:
1254         //case QEvent::Enter:
1255         //case QEvent::Leave:
1256         //case QEvent::HoverEnter:
1257         //case QEvent::HoverLeave:
1258         //case QEvent::HoverMove:
1259         //case QEvent::StatusTip:
1260         //case QEvent::DragEnter:
1261         //case QEvent::DragLeave:
1262         //case QEvent::Drop:
1263         //      break;
1264
1265         case QEvent::WindowActivate: {
1266                 GuiView * old_view = guiApp->currentView();
1267                 if (this == old_view) {
1268                         setFocus();
1269                         return QMainWindow::event(e);
1270                 }
1271                 if (old_view && old_view->currentBufferView()) {
1272                         // save current selection to the selection buffer to allow
1273                         // middle-button paste in this window.
1274                         cap::saveSelection(old_view->currentBufferView()->cursor());
1275                 }
1276                 guiApp->setCurrentView(this);
1277                 if (d.current_work_area_) {
1278                         BufferView & bv = d.current_work_area_->bufferView();
1279                         connectBufferView(bv);
1280                         connectBuffer(bv.buffer());
1281                         // The document structure, name and dialogs might have
1282                         // changed in another view.
1283                         structureChanged();
1284                         // The document settings needs to be reinitialised.
1285                         updateDialog("document", "");
1286                         updateDialogs();
1287                 } else {
1288                         resetWindowTitleAndIconText();
1289                 }
1290                 setFocus();
1291                 return QMainWindow::event(e);
1292         }
1293
1294         case QEvent::ShortcutOverride: {
1295                 // See bug 4888
1296                 if (isFullScreen() && menuBar()->isHidden()) {
1297                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
1298                         // FIXME: we should also try to detect special LyX shortcut such as
1299                         // Alt-P and Alt-M. Right now there is a hack in
1300                         // GuiWorkArea::processKeySym() that hides again the menubar for
1301                         // those cases.
1302                         if (ke->modifiers() & Qt::AltModifier && ke->key() != Qt::Key_Alt) {
1303                                 menuBar()->show();
1304                                 return QMainWindow::event(e);
1305                         }
1306                 }
1307                 return QMainWindow::event(e);
1308         }
1309
1310         default:
1311                 return QMainWindow::event(e);
1312         }
1313 }
1314
1315 void GuiView::resetWindowTitleAndIconText()
1316 {
1317         setWindowTitle(qt_("LyX"));
1318         setWindowIconText(qt_("LyX"));
1319 }
1320
1321 bool GuiView::focusNextPrevChild(bool /*next*/)
1322 {
1323         setFocus();
1324         return true;
1325 }
1326
1327
1328 bool GuiView::busy() const
1329 {
1330         return busy_ > 0;
1331 }
1332
1333
1334 void GuiView::setBusy(bool busy)
1335 {
1336         bool const busy_before = busy_ > 0;
1337         busy ? ++busy_ : --busy_;
1338         if ((busy_ > 0) == busy_before)
1339                 // busy state didn't change
1340                 return;
1341
1342         if (busy) {
1343                 QApplication::setOverrideCursor(Qt::WaitCursor);
1344                 return;
1345         }
1346         QApplication::restoreOverrideCursor();
1347         updateLayoutList();
1348 }
1349
1350
1351 void GuiView::resetCommandExecute()
1352 {
1353         command_execute_ = false;
1354         updateToolbars();
1355 }
1356
1357
1358 double GuiView::pixelRatio() const
1359 {
1360 #if QT_VERSION >= 0x050000
1361         return devicePixelRatio();
1362 #else
1363         return 1.0;
1364 #endif
1365 }
1366
1367
1368 GuiWorkArea * GuiView::workArea(int index)
1369 {
1370         if (TabWorkArea * twa = d.currentTabWorkArea())
1371                 if (index < twa->count())
1372                         return dynamic_cast<GuiWorkArea *>(twa->widget(index));
1373         return 0;
1374 }
1375
1376
1377 GuiWorkArea * GuiView::workArea(Buffer & buffer)
1378 {
1379         if (currentWorkArea()
1380                 && &currentWorkArea()->bufferView().buffer() == &buffer)
1381                 return currentWorkArea();
1382         if (TabWorkArea * twa = d.currentTabWorkArea())
1383                 return twa->workArea(buffer);
1384         return 0;
1385 }
1386
1387
1388 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
1389 {
1390         // Automatically create a TabWorkArea if there are none yet.
1391         TabWorkArea * tab_widget = d.splitter_->count()
1392                 ? d.currentTabWorkArea() : addTabWorkArea();
1393         return tab_widget->addWorkArea(buffer, *this);
1394 }
1395
1396
1397 TabWorkArea * GuiView::addTabWorkArea()
1398 {
1399         TabWorkArea * twa = new TabWorkArea;
1400         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
1401                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
1402         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
1403                          this, SLOT(on_lastWorkAreaRemoved()));
1404
1405         d.splitter_->addWidget(twa);
1406         d.stack_widget_->setCurrentWidget(d.splitter_);
1407         return twa;
1408 }
1409
1410
1411 GuiWorkArea const * GuiView::currentWorkArea() const
1412 {
1413         return d.current_work_area_;
1414 }
1415
1416
1417 GuiWorkArea * GuiView::currentWorkArea()
1418 {
1419         return d.current_work_area_;
1420 }
1421
1422
1423 GuiWorkArea const * GuiView::currentMainWorkArea() const
1424 {
1425         if (!d.currentTabWorkArea())
1426                 return 0;
1427         return d.currentTabWorkArea()->currentWorkArea();
1428 }
1429
1430
1431 GuiWorkArea * GuiView::currentMainWorkArea()
1432 {
1433         if (!d.currentTabWorkArea())
1434                 return 0;
1435         return d.currentTabWorkArea()->currentWorkArea();
1436 }
1437
1438
1439 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
1440 {
1441         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
1442         if (!wa) {
1443                 d.current_work_area_ = 0;
1444                 d.setBackground();
1445                 return;
1446         }
1447
1448         // FIXME: I've no clue why this is here and why it accesses
1449         //  theGuiApp()->currentView, which might be 0 (bug 6464).
1450         //  See also 27525 (vfr).
1451         if (theGuiApp()->currentView() == this
1452                   && theGuiApp()->currentView()->currentWorkArea() == wa)
1453                 return;
1454
1455         if (currentBufferView())
1456                 cap::saveSelection(currentBufferView()->cursor());
1457
1458         theGuiApp()->setCurrentView(this);
1459         d.current_work_area_ = wa;
1460
1461         // We need to reset this now, because it will need to be
1462         // right if the tabWorkArea gets reset in the for loop. We
1463         // will change it back if we aren't in that case.
1464         GuiWorkArea * const old_cmwa = d.current_main_work_area_;
1465         d.current_main_work_area_ = wa;
1466
1467         for (int i = 0; i != d.splitter_->count(); ++i) {
1468                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
1469                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea()
1470                                 << ", Current main wa: " << currentMainWorkArea());
1471                         return;
1472                 }
1473         }
1474
1475         d.current_main_work_area_ = old_cmwa;
1476
1477         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
1478         on_currentWorkAreaChanged(wa);
1479         BufferView & bv = wa->bufferView();
1480         bv.cursor().fixIfBroken();
1481         bv.updateMetrics();
1482         wa->setUpdatesEnabled(true);
1483         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1484 }
1485
1486
1487 void GuiView::removeWorkArea(GuiWorkArea * wa)
1488 {
1489         LASSERT(wa, return);
1490         if (wa == d.current_work_area_) {
1491                 disconnectBuffer();
1492                 disconnectBufferView();
1493                 d.current_work_area_ = 0;
1494                 d.current_main_work_area_ = 0;
1495         }
1496
1497         bool found_twa = false;
1498         for (int i = 0; i != d.splitter_->count(); ++i) {
1499                 TabWorkArea * twa = d.tabWorkArea(i);
1500                 if (twa->removeWorkArea(wa)) {
1501                         // Found in this tab group, and deleted the GuiWorkArea.
1502                         found_twa = true;
1503                         if (twa->count() != 0) {
1504                                 if (d.current_work_area_ == 0)
1505                                         // This means that we are closing the current GuiWorkArea, so
1506                                         // switch to the next GuiWorkArea in the found TabWorkArea.
1507                                         setCurrentWorkArea(twa->currentWorkArea());
1508                         } else {
1509                                 // No more WorkAreas in this tab group, so delete it.
1510                                 delete twa;
1511                         }
1512                         break;
1513                 }
1514         }
1515
1516         // It is not a tabbed work area (i.e., the search work area), so it
1517         // should be deleted by other means.
1518         LASSERT(found_twa, return);
1519
1520         if (d.current_work_area_ == 0) {
1521                 if (d.splitter_->count() != 0) {
1522                         TabWorkArea * twa = d.currentTabWorkArea();
1523                         setCurrentWorkArea(twa->currentWorkArea());
1524                 } else {
1525                         // No more work areas, switch to the background widget.
1526                         setCurrentWorkArea(0);
1527                 }
1528         }
1529 }
1530
1531
1532 LayoutBox * GuiView::getLayoutDialog() const
1533 {
1534         return d.layout_;
1535 }
1536
1537
1538 void GuiView::updateLayoutList()
1539 {
1540         if (d.layout_)
1541                 d.layout_->updateContents(false);
1542 }
1543
1544
1545 void GuiView::updateToolbars()
1546 {
1547         ToolbarMap::iterator end = d.toolbars_.end();
1548         if (d.current_work_area_) {
1549                 int context = 0;
1550                 if (d.current_work_area_->bufferView().cursor().inMathed()
1551                         && !d.current_work_area_->bufferView().cursor().inRegexped())
1552                         context |= Toolbars::MATH;
1553                 if (lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled())
1554                         context |= Toolbars::TABLE;
1555                 if (currentBufferView()->buffer().areChangesPresent()
1556                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled()
1557                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onOff(true))
1558                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).enabled()
1559                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).onOff(true)))
1560                         context |= Toolbars::REVIEW;
1561                 if (lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled())
1562                         context |= Toolbars::MATHMACROTEMPLATE;
1563                 if (lyx::getStatus(FuncRequest(LFUN_IN_IPA)).enabled())
1564                         context |= Toolbars::IPA;
1565                 if (command_execute_)
1566                         context |= Toolbars::MINIBUFFER;
1567
1568                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1569                         it->second->update(context);
1570         } else
1571                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1572                         it->second->update();
1573 }
1574
1575
1576 void GuiView::setBuffer(Buffer * newBuffer)
1577 {
1578         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << endl);
1579         LASSERT(newBuffer, return);
1580
1581         GuiWorkArea * wa = workArea(*newBuffer);
1582         if (wa == 0) {
1583                 setBusy(true);
1584                 newBuffer->masterBuffer()->updateBuffer();
1585                 setBusy(false);
1586                 wa = addWorkArea(*newBuffer);
1587                 // scroll to the position when the BufferView was last closed
1588                 if (lyxrc.use_lastfilepos) {
1589                         LastFilePosSection::FilePos filepos =
1590                                 theSession().lastFilePos().load(newBuffer->fileName());
1591                         wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1592                 }
1593         } else {
1594                 //Disconnect the old buffer...there's no new one.
1595                 disconnectBuffer();
1596         }
1597         connectBuffer(*newBuffer);
1598         connectBufferView(wa->bufferView());
1599         setCurrentWorkArea(wa);
1600 }
1601
1602
1603 void GuiView::connectBuffer(Buffer & buf)
1604 {
1605         buf.setGuiDelegate(this);
1606 }
1607
1608
1609 void GuiView::disconnectBuffer()
1610 {
1611         if (d.current_work_area_)
1612                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1613 }
1614
1615
1616 void GuiView::connectBufferView(BufferView & bv)
1617 {
1618         bv.setGuiDelegate(this);
1619 }
1620
1621
1622 void GuiView::disconnectBufferView()
1623 {
1624         if (d.current_work_area_)
1625                 d.current_work_area_->bufferView().setGuiDelegate(0);
1626 }
1627
1628
1629 void GuiView::errors(string const & error_type, bool from_master)
1630 {
1631         BufferView const * const bv = currentBufferView();
1632         if (!bv)
1633                 return;
1634
1635 #if EXPORT_in_THREAD
1636         // We are called with from_master == false by default, so we
1637         // have to figure out whether that is the case or not.
1638         ErrorList & el = bv->buffer().errorList(error_type);
1639         if (el.empty()) {
1640             el = bv->buffer().masterBuffer()->errorList(error_type);
1641             from_master = true;
1642         }
1643 #else
1644         ErrorList const & el = from_master ?
1645                 bv->buffer().masterBuffer()->errorList(error_type) :
1646                 bv->buffer().errorList(error_type);
1647 #endif
1648
1649         if (el.empty())
1650                 return;
1651
1652         string data = error_type;
1653         if (from_master)
1654                 data = "from_master|" + error_type;
1655         showDialog("errorlist", data);
1656 }
1657
1658
1659 void GuiView::updateTocItem(string const & type, DocIterator const & dit)
1660 {
1661         d.toc_models_.updateItem(toqstr(type), dit);
1662 }
1663
1664
1665 void GuiView::structureChanged()
1666 {
1667         // FIXME: This is slightly expensive, though less than the tocBackend update
1668         // (#9880). This also resets the view in the Toc Widget (#6675).
1669         d.toc_models_.reset(documentBufferView());
1670         // Navigator needs more than a simple update in this case. It needs to be
1671         // rebuilt.
1672         updateDialog("toc", "");
1673 }
1674
1675
1676 void GuiView::updateDialog(string const & name, string const & data)
1677 {
1678         if (!isDialogVisible(name))
1679                 return;
1680
1681         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1682         if (it == d.dialogs_.end())
1683                 return;
1684
1685         Dialog * const dialog = it->second.get();
1686         if (dialog->isVisibleView())
1687                 dialog->initialiseParams(data);
1688 }
1689
1690
1691 BufferView * GuiView::documentBufferView()
1692 {
1693         return currentMainWorkArea()
1694                 ? &currentMainWorkArea()->bufferView()
1695                 : 0;
1696 }
1697
1698
1699 BufferView const * GuiView::documentBufferView() const
1700 {
1701         return currentMainWorkArea()
1702                 ? &currentMainWorkArea()->bufferView()
1703                 : 0;
1704 }
1705
1706
1707 BufferView * GuiView::currentBufferView()
1708 {
1709         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1710 }
1711
1712
1713 BufferView const * GuiView::currentBufferView() const
1714 {
1715         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1716 }
1717
1718
1719 docstring GuiView::GuiViewPrivate::autosaveAndDestroy(
1720         Buffer const * orig, Buffer * clone)
1721 {
1722         bool const success = clone->autoSave();
1723         delete clone;
1724         busyBuffers.remove(orig);
1725         return success
1726                 ? _("Automatic save done.")
1727                 : _("Automatic save failed!");
1728 }
1729
1730
1731 void GuiView::autoSave()
1732 {
1733         LYXERR(Debug::INFO, "Running autoSave()");
1734
1735         Buffer * buffer = documentBufferView()
1736                 ? &documentBufferView()->buffer() : 0;
1737         if (!buffer) {
1738                 resetAutosaveTimers();
1739                 return;
1740         }
1741
1742         GuiViewPrivate::busyBuffers.insert(buffer);
1743         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::autosaveAndDestroy,
1744                 buffer, buffer->cloneBufferOnly());
1745         d.autosave_watcher_.setFuture(f);
1746         resetAutosaveTimers();
1747 }
1748
1749
1750 void GuiView::resetAutosaveTimers()
1751 {
1752         if (lyxrc.autosave)
1753                 d.autosave_timeout_.restart();
1754 }
1755
1756
1757 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1758 {
1759         bool enable = true;
1760         Buffer * buf = currentBufferView()
1761                 ? &currentBufferView()->buffer() : 0;
1762         Buffer * doc_buffer = documentBufferView()
1763                 ? &(documentBufferView()->buffer()) : 0;
1764
1765 #ifdef Q_OS_MAC
1766         /* In LyX/Mac, when a dialog is open, the menus of the
1767            application can still be accessed without giving focus to
1768            the main window. In this case, we want to disable the menu
1769            entries that are buffer-related.
1770            This code must not be used on Linux and Windows, since it
1771            would disable buffer-related entries when hovering over the
1772            menu (see bug #9574).
1773          */
1774         if (cmd.origin() == FuncRequest::MENU && !hasFocus()) {
1775                 buf = 0;
1776                 doc_buffer = 0;
1777         }
1778 #endif
1779
1780         // Check whether we need a buffer
1781         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
1782                 // no, exit directly
1783                 flag.message(from_utf8(N_("Command not allowed with"
1784                                         "out any document open")));
1785                 flag.setEnabled(false);
1786                 return true;
1787         }
1788
1789         if (cmd.origin() == FuncRequest::TOC) {
1790                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1791                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
1792                         flag.setEnabled(false);
1793                 return true;
1794         }
1795
1796         switch(cmd.action()) {
1797         case LFUN_BUFFER_IMPORT:
1798                 break;
1799
1800         case LFUN_MASTER_BUFFER_UPDATE:
1801         case LFUN_MASTER_BUFFER_VIEW:
1802                 enable = doc_buffer
1803                         && (doc_buffer->parent() != 0
1804                             || doc_buffer->hasChildren())
1805                         && !d.processing_thread_watcher_.isRunning();
1806                 break;
1807
1808         case LFUN_BUFFER_UPDATE:
1809         case LFUN_BUFFER_VIEW: {
1810                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
1811                         enable = false;
1812                         break;
1813                 }
1814                 string format = to_utf8(cmd.argument());
1815                 if (cmd.argument().empty())
1816                         format = doc_buffer->params().getDefaultOutputFormat();
1817                 enable = doc_buffer->params().isExportableFormat(format);
1818                 break;
1819         }
1820
1821         case LFUN_BUFFER_RELOAD:
1822                 enable = doc_buffer && !doc_buffer->isUnnamed()
1823                         && doc_buffer->fileName().exists()
1824                         && (!doc_buffer->isClean()
1825                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1826                 break;
1827
1828         case LFUN_BUFFER_CHILD_OPEN:
1829                 enable = doc_buffer != 0;
1830                 break;
1831
1832         case LFUN_BUFFER_WRITE:
1833                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1834                 break;
1835
1836         //FIXME: This LFUN should be moved to GuiApplication.
1837         case LFUN_BUFFER_WRITE_ALL: {
1838                 // We enable the command only if there are some modified buffers
1839                 Buffer * first = theBufferList().first();
1840                 enable = false;
1841                 if (!first)
1842                         break;
1843                 Buffer * b = first;
1844                 // We cannot use a for loop as the buffer list is a cycle.
1845                 do {
1846                         if (!b->isClean()) {
1847                                 enable = true;
1848                                 break;
1849                         }
1850                         b = theBufferList().next(b);
1851                 } while (b != first);
1852                 break;
1853         }
1854
1855         case LFUN_BUFFER_WRITE_AS:
1856         case LFUN_BUFFER_EXPORT_AS:
1857                 enable = doc_buffer != 0;
1858                 break;
1859
1860         case LFUN_BUFFER_CLOSE:
1861         case LFUN_VIEW_CLOSE:
1862                 enable = doc_buffer != 0;
1863                 break;
1864
1865         case LFUN_BUFFER_CLOSE_ALL:
1866                 enable = theBufferList().last() != theBufferList().first();
1867                 break;
1868
1869         case LFUN_VIEW_SPLIT:
1870                 if (cmd.getArg(0) == "vertical")
1871                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1872                                          d.splitter_->orientation() == Qt::Vertical);
1873                 else
1874                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1875                                          d.splitter_->orientation() == Qt::Horizontal);
1876                 break;
1877
1878         case LFUN_TAB_GROUP_CLOSE:
1879                 enable = d.tabWorkAreaCount() > 1;
1880                 break;
1881
1882         case LFUN_TOOLBAR_TOGGLE: {
1883                 string const name = cmd.getArg(0);
1884                 if (GuiToolbar * t = toolbar(name))
1885                         flag.setOnOff(t->isVisible());
1886                 else {
1887                         enable = false;
1888                         docstring const msg =
1889                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
1890                         flag.message(msg);
1891                 }
1892                 break;
1893         }
1894
1895         case LFUN_DROP_LAYOUTS_CHOICE:
1896                 enable = buf != 0;
1897                 break;
1898
1899         case LFUN_UI_TOGGLE:
1900                 flag.setOnOff(isFullScreen());
1901                 break;
1902
1903         case LFUN_DIALOG_DISCONNECT_INSET:
1904                 break;
1905
1906         case LFUN_DIALOG_HIDE:
1907                 // FIXME: should we check if the dialog is shown?
1908                 break;
1909
1910         case LFUN_DIALOG_TOGGLE:
1911                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1912                 // fall through to set "enable"
1913         case LFUN_DIALOG_SHOW: {
1914                 string const name = cmd.getArg(0);
1915                 if (!doc_buffer)
1916                         enable = name == "aboutlyx"
1917                                 || name == "file" //FIXME: should be removed.
1918                                 || name == "prefs"
1919                                 || name == "texinfo"
1920                                 || name == "progress"
1921                                 || name == "compare";
1922                 else if (name == "character" || name == "symbols"
1923                         || name == "mathdelimiter" || name == "mathmatrix") {
1924                         if (!buf || buf->isReadonly())
1925                                 enable = false;
1926                         else {
1927                                 Cursor const & cur = currentBufferView()->cursor();
1928                                 enable = !(cur.inTexted() && cur.paragraph().isPassThru());
1929                         }
1930                 }
1931                 else if (name == "latexlog")
1932                         enable = FileName(doc_buffer->logName()).isReadableFile();
1933                 else if (name == "spellchecker")
1934                         enable = theSpellChecker()
1935                                 && !doc_buffer->isReadonly()
1936                                 && !doc_buffer->text().empty();
1937                 else if (name == "vclog")
1938                         enable = doc_buffer->lyxvc().inUse();
1939                 break;
1940         }
1941
1942         case LFUN_DIALOG_UPDATE: {
1943                 string const name = cmd.getArg(0);
1944                 if (!buf)
1945                         enable = name == "prefs";
1946                 break;
1947         }
1948
1949         case LFUN_COMMAND_EXECUTE:
1950         case LFUN_MESSAGE:
1951         case LFUN_MENU_OPEN:
1952                 // Nothing to check.
1953                 break;
1954
1955         case LFUN_COMPLETION_INLINE:
1956                 if (!d.current_work_area_
1957                         || !d.current_work_area_->completer().inlinePossible(
1958                         currentBufferView()->cursor()))
1959                         enable = false;
1960                 break;
1961
1962         case LFUN_COMPLETION_POPUP:
1963                 if (!d.current_work_area_
1964                         || !d.current_work_area_->completer().popupPossible(
1965                         currentBufferView()->cursor()))
1966                         enable = false;
1967                 break;
1968
1969         case LFUN_COMPLETE:
1970                 if (!d.current_work_area_
1971                         || !d.current_work_area_->completer().inlinePossible(
1972                         currentBufferView()->cursor()))
1973                         enable = false;
1974                 break;
1975
1976         case LFUN_COMPLETION_ACCEPT:
1977                 if (!d.current_work_area_
1978                         || (!d.current_work_area_->completer().popupVisible()
1979                         && !d.current_work_area_->completer().inlineVisible()
1980                         && !d.current_work_area_->completer().completionAvailable()))
1981                         enable = false;
1982                 break;
1983
1984         case LFUN_COMPLETION_CANCEL:
1985                 if (!d.current_work_area_
1986                         || (!d.current_work_area_->completer().popupVisible()
1987                         && !d.current_work_area_->completer().inlineVisible()))
1988                         enable = false;
1989                 break;
1990
1991         case LFUN_BUFFER_ZOOM_OUT:
1992                 enable = doc_buffer && lyxrc.zoom > 10;
1993                 break;
1994
1995         case LFUN_BUFFER_ZOOM_IN:
1996                 enable = doc_buffer != 0;
1997                 break;
1998
1999         case LFUN_BUFFER_MOVE_NEXT:
2000         case LFUN_BUFFER_MOVE_PREVIOUS:
2001                 // we do not cycle when moving
2002         case LFUN_BUFFER_NEXT:
2003         case LFUN_BUFFER_PREVIOUS:
2004                 // because we cycle, it doesn't matter whether on first or last
2005                 enable = (d.currentTabWorkArea()->count() > 1);
2006                 break;
2007         case LFUN_BUFFER_SWITCH:
2008                 // toggle on the current buffer, but do not toggle off
2009                 // the other ones (is that a good idea?)
2010                 if (doc_buffer
2011                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
2012                         flag.setOnOff(true);
2013                 break;
2014
2015         case LFUN_VC_REGISTER:
2016                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
2017                 break;
2018         case LFUN_VC_RENAME:
2019                 enable = doc_buffer && doc_buffer->lyxvc().renameEnabled();
2020                 break;
2021         case LFUN_VC_COPY:
2022                 enable = doc_buffer && doc_buffer->lyxvc().copyEnabled();
2023                 break;
2024         case LFUN_VC_CHECK_IN:
2025                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
2026                 break;
2027         case LFUN_VC_CHECK_OUT:
2028                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
2029                 break;
2030         case LFUN_VC_LOCKING_TOGGLE:
2031                 enable = doc_buffer && !doc_buffer->isReadonly()
2032                         && doc_buffer->lyxvc().lockingToggleEnabled();
2033                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
2034                 break;
2035         case LFUN_VC_REVERT:
2036                 enable = doc_buffer && doc_buffer->lyxvc().inUse() && !doc_buffer->isReadonly();
2037                 break;
2038         case LFUN_VC_UNDO_LAST:
2039                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
2040                 break;
2041         case LFUN_VC_REPO_UPDATE:
2042                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
2043                 break;
2044         case LFUN_VC_COMMAND: {
2045                 if (cmd.argument().empty())
2046                         enable = false;
2047                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
2048                         enable = false;
2049                 break;
2050         }
2051         case LFUN_VC_COMPARE:
2052                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
2053                 break;
2054
2055         case LFUN_SERVER_GOTO_FILE_ROW:
2056                 break;
2057         case LFUN_FORWARD_SEARCH:
2058                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty());
2059                 break;
2060
2061         case LFUN_FILE_INSERT_PLAINTEXT:
2062         case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2063                 enable = documentBufferView() && documentBufferView()->cursor().inTexted();
2064                 break;
2065
2066         case LFUN_SPELLING_CONTINUOUSLY:
2067                 flag.setOnOff(lyxrc.spellcheck_continuously);
2068                 break;
2069
2070         default:
2071                 return false;
2072         }
2073
2074         if (!enable)
2075                 flag.setEnabled(false);
2076
2077         return true;
2078 }
2079
2080
2081 static FileName selectTemplateFile()
2082 {
2083         FileDialog dlg(qt_("Select template file"));
2084         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2085         dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2086
2087         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
2088                                  QStringList(qt_("LyX Documents (*.lyx)")));
2089
2090         if (result.first == FileDialog::Later)
2091                 return FileName();
2092         if (result.second.isEmpty())
2093                 return FileName();
2094         return FileName(fromqstr(result.second));
2095 }
2096
2097
2098 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
2099 {
2100         setBusy(true);
2101
2102         Buffer * newBuffer = 0;
2103         try {
2104                 newBuffer = checkAndLoadLyXFile(filename);
2105         } catch (ExceptionMessage const & e) {
2106                 setBusy(false);
2107                 throw(e);
2108         }
2109         setBusy(false);
2110
2111         if (!newBuffer) {
2112                 message(_("Document not loaded."));
2113                 return 0;
2114         }
2115
2116         setBuffer(newBuffer);
2117         newBuffer->errors("Parse");
2118
2119         if (tolastfiles)
2120                 theSession().lastFiles().add(filename);
2121
2122         return newBuffer;
2123 }
2124
2125
2126 void GuiView::openDocument(string const & fname)
2127 {
2128         string initpath = lyxrc.document_path;
2129
2130         if (documentBufferView()) {
2131                 string const trypath = documentBufferView()->buffer().filePath();
2132                 // If directory is writeable, use this as default.
2133                 if (FileName(trypath).isDirWritable())
2134                         initpath = trypath;
2135         }
2136
2137         string filename;
2138
2139         if (fname.empty()) {
2140                 FileDialog dlg(qt_("Select document to open"));
2141                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2142                 dlg.setButton2(qt_("Examples|#E#e"),
2143                                 toqstr(addPath(package().system_support().absFileName(), "examples")));
2144
2145                 QStringList const filter(qt_("LyX Documents (*.lyx)"));
2146                 FileDialog::Result result =
2147                         dlg.open(toqstr(initpath), filter);
2148
2149                 if (result.first == FileDialog::Later)
2150                         return;
2151
2152                 filename = fromqstr(result.second);
2153
2154                 // check selected filename
2155                 if (filename.empty()) {
2156                         message(_("Canceled."));
2157                         return;
2158                 }
2159         } else
2160                 filename = fname;
2161
2162         // get absolute path of file and add ".lyx" to the filename if
2163         // necessary.
2164         FileName const fullname =
2165                         fileSearch(string(), filename, "lyx", support::may_not_exist);
2166         if (!fullname.empty())
2167                 filename = fullname.absFileName();
2168
2169         if (!fullname.onlyPath().isDirectory()) {
2170                 Alert::warning(_("Invalid filename"),
2171                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
2172                                 from_utf8(fullname.absFileName())));
2173                 return;
2174         }
2175
2176         // if the file doesn't exist and isn't already open (bug 6645),
2177         // let the user create one
2178         if (!fullname.exists() && !theBufferList().exists(fullname) &&
2179             !LyXVC::file_not_found_hook(fullname)) {
2180                 // the user specifically chose this name. Believe him.
2181                 Buffer * const b = newFile(filename, string(), true);
2182                 if (b)
2183                         setBuffer(b);
2184                 return;
2185         }
2186
2187         docstring const disp_fn = makeDisplayPath(filename);
2188         message(bformat(_("Opening document %1$s..."), disp_fn));
2189
2190         docstring str2;
2191         Buffer * buf = loadDocument(fullname);
2192         if (buf) {
2193                 str2 = bformat(_("Document %1$s opened."), disp_fn);
2194                 if (buf->lyxvc().inUse())
2195                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
2196                                 " " + _("Version control detected.");
2197         } else {
2198                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
2199         }
2200         message(str2);
2201 }
2202
2203 // FIXME: clean that
2204 static bool import(GuiView * lv, FileName const & filename,
2205         string const & format, ErrorList & errorList)
2206 {
2207         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
2208
2209         string loader_format;
2210         vector<string> loaders = theConverters().loaders();
2211         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
2212                 vector<string>::const_iterator it = loaders.begin();
2213                 vector<string>::const_iterator en = loaders.end();
2214                 for (; it != en; ++it) {
2215                         if (!theConverters().isReachable(format, *it))
2216                                 continue;
2217
2218                         string const tofile =
2219                                 support::changeExtension(filename.absFileName(),
2220                                 formats.extension(*it));
2221                         if (!theConverters().convert(0, filename, FileName(tofile),
2222                                 filename, format, *it, errorList))
2223                                 return false;
2224                         loader_format = *it;
2225                         break;
2226                 }
2227                 if (loader_format.empty()) {
2228                         frontend::Alert::error(_("Couldn't import file"),
2229                                          bformat(_("No information for importing the format %1$s."),
2230                                          formats.prettyName(format)));
2231                         return false;
2232                 }
2233         } else
2234                 loader_format = format;
2235
2236         if (loader_format == "lyx") {
2237                 Buffer * buf = lv->loadDocument(lyxfile);
2238                 if (!buf)
2239                         return false;
2240         } else {
2241                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
2242                 if (!b)
2243                         return false;
2244                 lv->setBuffer(b);
2245                 bool as_paragraphs = loader_format == "textparagraph";
2246                 string filename2 = (loader_format == format) ? filename.absFileName()
2247                         : support::changeExtension(filename.absFileName(),
2248                                           formats.extension(loader_format));
2249                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
2250                         as_paragraphs);
2251                 guiApp->setCurrentView(lv);
2252                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
2253         }
2254
2255         return true;
2256 }
2257
2258
2259 void GuiView::importDocument(string const & argument)
2260 {
2261         string format;
2262         string filename = split(argument, format, ' ');
2263
2264         LYXERR(Debug::INFO, format << " file: " << filename);
2265
2266         // need user interaction
2267         if (filename.empty()) {
2268                 string initpath = lyxrc.document_path;
2269                 if (documentBufferView()) {
2270                         string const trypath = documentBufferView()->buffer().filePath();
2271                         // If directory is writeable, use this as default.
2272                         if (FileName(trypath).isDirWritable())
2273                                 initpath = trypath;
2274                 }
2275
2276                 docstring const text = bformat(_("Select %1$s file to import"),
2277                         formats.prettyName(format));
2278
2279                 FileDialog dlg(toqstr(text));
2280                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2281                 dlg.setButton2(qt_("Examples|#E#e"),
2282                         toqstr(addPath(package().system_support().absFileName(), "examples")));
2283
2284                 docstring filter = formats.prettyName(format);
2285                 filter += " (*.{";
2286                 // FIXME UNICODE
2287                 filter += from_utf8(formats.extensions(format));
2288                 filter += "})";
2289
2290                 FileDialog::Result result =
2291                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2292
2293                 if (result.first == FileDialog::Later)
2294                         return;
2295
2296                 filename = fromqstr(result.second);
2297
2298                 // check selected filename
2299                 if (filename.empty())
2300                         message(_("Canceled."));
2301         }
2302
2303         if (filename.empty())
2304                 return;
2305
2306         // get absolute path of file
2307         FileName const fullname(support::makeAbsPath(filename));
2308
2309         // Can happen if the user entered a path into the dialog
2310         // (see bug #7437)
2311         if (fullname.onlyFileName().empty()) {
2312                 docstring msg = bformat(_("The file name '%1$s' is invalid!\n"
2313                                           "Aborting import."),
2314                                         from_utf8(fullname.absFileName()));
2315                 frontend::Alert::error(_("File name error"), msg);
2316                 message(_("Canceled."));
2317                 return;
2318         }
2319
2320
2321         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2322
2323         // Check if the document already is open
2324         Buffer * buf = theBufferList().getBuffer(lyxfile);
2325         if (buf) {
2326                 setBuffer(buf);
2327                 if (!closeBuffer()) {
2328                         message(_("Canceled."));
2329                         return;
2330                 }
2331         }
2332
2333         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
2334
2335         // if the file exists already, and we didn't do
2336         // -i lyx thefile.lyx, warn
2337         if (lyxfile.exists() && fullname != lyxfile) {
2338
2339                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2340                         "Do you want to overwrite that document?"), displaypath);
2341                 int const ret = Alert::prompt(_("Overwrite document?"),
2342                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
2343
2344                 if (ret == 1) {
2345                         message(_("Canceled."));
2346                         return;
2347                 }
2348         }
2349
2350         message(bformat(_("Importing %1$s..."), displaypath));
2351         ErrorList errorList;
2352         if (import(this, fullname, format, errorList))
2353                 message(_("imported."));
2354         else
2355                 message(_("file not imported!"));
2356
2357         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2358 }
2359
2360
2361 void GuiView::newDocument(string const & filename, bool from_template)
2362 {
2363         FileName initpath(lyxrc.document_path);
2364         if (documentBufferView()) {
2365                 FileName const trypath(documentBufferView()->buffer().filePath());
2366                 // If directory is writeable, use this as default.
2367                 if (trypath.isDirWritable())
2368                         initpath = trypath;
2369         }
2370
2371         string templatefile;
2372         if (from_template) {
2373                 templatefile = selectTemplateFile().absFileName();
2374                 if (templatefile.empty())
2375                         return;
2376         }
2377
2378         Buffer * b;
2379         if (filename.empty())
2380                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
2381         else
2382                 b = newFile(filename, templatefile, true);
2383
2384         if (b)
2385                 setBuffer(b);
2386
2387         // If no new document could be created, it is unsure
2388         // whether there is a valid BufferView.
2389         if (currentBufferView())
2390                 // Ensure the cursor is correctly positioned on screen.
2391                 currentBufferView()->showCursor();
2392 }
2393
2394
2395 void GuiView::insertLyXFile(docstring const & fname)
2396 {
2397         BufferView * bv = documentBufferView();
2398         if (!bv)
2399                 return;
2400
2401         // FIXME UNICODE
2402         FileName filename(to_utf8(fname));
2403         if (filename.empty()) {
2404                 // Launch a file browser
2405                 // FIXME UNICODE
2406                 string initpath = lyxrc.document_path;
2407                 string const trypath = bv->buffer().filePath();
2408                 // If directory is writeable, use this as default.
2409                 if (FileName(trypath).isDirWritable())
2410                         initpath = trypath;
2411
2412                 // FIXME UNICODE
2413                 FileDialog dlg(qt_("Select LyX document to insert"));
2414                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2415                 dlg.setButton2(qt_("Examples|#E#e"),
2416                         toqstr(addPath(package().system_support().absFileName(),
2417                         "examples")));
2418
2419                 FileDialog::Result result = dlg.open(toqstr(initpath),
2420                                          QStringList(qt_("LyX Documents (*.lyx)")));
2421
2422                 if (result.first == FileDialog::Later)
2423                         return;
2424
2425                 // FIXME UNICODE
2426                 filename.set(fromqstr(result.second));
2427
2428                 // check selected filename
2429                 if (filename.empty()) {
2430                         // emit message signal.
2431                         message(_("Canceled."));
2432                         return;
2433                 }
2434         }
2435
2436         bv->insertLyXFile(filename);
2437         bv->buffer().errors("Parse");
2438 }
2439
2440
2441 bool GuiView::renameBuffer(Buffer & b, docstring const & newname, RenameKind kind)
2442 {
2443         FileName fname = b.fileName();
2444         FileName const oldname = fname;
2445
2446         if (!newname.empty()) {
2447                 // FIXME UNICODE
2448                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFileName());
2449         } else {
2450                 // Switch to this Buffer.
2451                 setBuffer(&b);
2452
2453                 // No argument? Ask user through dialog.
2454                 // FIXME UNICODE
2455                 FileDialog dlg(qt_("Choose a filename to save document as"));
2456                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2457                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2458
2459                 if (!isLyXFileName(fname.absFileName()))
2460                         fname.changeExtension(".lyx");
2461
2462                 FileDialog::Result result =
2463                         dlg.save(toqstr(fname.onlyPath().absFileName()),
2464                                    QStringList(qt_("LyX Documents (*.lyx)")),
2465                                          toqstr(fname.onlyFileName()));
2466
2467                 if (result.first == FileDialog::Later)
2468                         return false;
2469
2470                 fname.set(fromqstr(result.second));
2471
2472                 if (fname.empty())
2473                         return false;
2474
2475                 if (!isLyXFileName(fname.absFileName()))
2476                         fname.changeExtension(".lyx");
2477         }
2478
2479         // fname is now the new Buffer location.
2480
2481         // if there is already a Buffer open with this name, we do not want
2482         // to have another one. (the second test makes sure we're not just
2483         // trying to overwrite ourselves, which is fine.)
2484         if (theBufferList().exists(fname) && fname != oldname
2485                   && theBufferList().getBuffer(fname) != &b) {
2486                 docstring const text =
2487                         bformat(_("The file\n%1$s\nis already open in your current session.\n"
2488                             "Please close it before attempting to overwrite it.\n"
2489                             "Do you want to choose a new filename?"),
2490                                 from_utf8(fname.absFileName()));
2491                 int const ret = Alert::prompt(_("Chosen File Already Open"),
2492                         text, 0, 1, _("&Rename"), _("&Cancel"));
2493                 switch (ret) {
2494                 case 0: return renameBuffer(b, docstring(), kind);
2495                 case 1: return false;
2496                 }
2497                 //return false;
2498         }
2499
2500         bool const existsLocal = fname.exists();
2501         bool const existsInVC = LyXVC::fileInVC(fname);
2502         if (existsLocal || existsInVC) {
2503                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2504                 if (kind != LV_WRITE_AS && existsInVC) {
2505                         // renaming to a name that is already in VC
2506                         // would not work
2507                         docstring text = bformat(_("The document %1$s "
2508                                         "is already registered.\n\n"
2509                                         "Do you want to choose a new name?"),
2510                                 file);
2511                         docstring const title = (kind == LV_VC_RENAME) ?
2512                                 _("Rename document?") : _("Copy document?");
2513                         docstring const button = (kind == LV_VC_RENAME) ?
2514                                 _("&Rename") : _("&Copy");
2515                         int const ret = Alert::prompt(title, text, 0, 1,
2516                                 button, _("&Cancel"));
2517                         switch (ret) {
2518                         case 0: return renameBuffer(b, docstring(), kind);
2519                         case 1: return false;
2520                         }
2521                 }
2522
2523                 if (existsLocal) {
2524                         docstring text = bformat(_("The document %1$s "
2525                                         "already exists.\n\n"
2526                                         "Do you want to overwrite that document?"),
2527                                 file);
2528                         int const ret = Alert::prompt(_("Overwrite document?"),
2529                                         text, 0, 2, _("&Overwrite"),
2530                                         _("&Rename"), _("&Cancel"));
2531                         switch (ret) {
2532                         case 0: break;
2533                         case 1: return renameBuffer(b, docstring(), kind);
2534                         case 2: return false;
2535                         }
2536                 }
2537         }
2538
2539         switch (kind) {
2540         case LV_VC_RENAME: {
2541                 string msg = b.lyxvc().rename(fname);
2542                 if (msg.empty())
2543                         return false;
2544                 message(from_utf8(msg));
2545                 break;
2546         }
2547         case LV_VC_COPY: {
2548                 string msg = b.lyxvc().copy(fname);
2549                 if (msg.empty())
2550                         return false;
2551                 message(from_utf8(msg));
2552                 break;
2553         }
2554         case LV_WRITE_AS:
2555                 break;
2556         }
2557         // LyXVC created the file already in case of LV_VC_RENAME or
2558         // LV_VC_COPY, but call saveBuffer() nevertheless to get
2559         // relative paths of included stuff right if we moved e.g. from
2560         // /a/b.lyx to /a/c/b.lyx.
2561
2562         bool const saved = saveBuffer(b, fname);
2563         if (saved)
2564                 b.reload();
2565         return saved;
2566 }
2567
2568
2569 struct PrettyNameComparator
2570 {
2571         bool operator()(Format const *first, Format const *second) const {
2572                 return compare_no_case(translateIfPossible(from_ascii(first->prettyname())),
2573                                        translateIfPossible(from_ascii(second->prettyname()))) <= 0;
2574         }
2575 };
2576
2577
2578 bool GuiView::exportBufferAs(Buffer & b, docstring const & iformat)
2579 {
2580         FileName fname = b.fileName();
2581
2582         FileDialog dlg(qt_("Choose a filename to export the document as"));
2583         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2584
2585         QStringList types;
2586         QString const anyformat = qt_("Guess from extension (*.*)");
2587         types << anyformat;
2588         Formats::const_iterator it = formats.begin();
2589         vector<Format const *> export_formats;
2590         for (; it != formats.end(); ++it)
2591                 if (it->documentFormat())
2592                         export_formats.push_back(&(*it));
2593         PrettyNameComparator cmp;
2594         sort(export_formats.begin(), export_formats.end(), cmp);
2595         vector<Format const *>::const_iterator fit = export_formats.begin();
2596         map<QString, string> fmap;
2597         QString filter;
2598         string ext;
2599         for (; fit != export_formats.end(); ++fit) {
2600                 docstring const loc_prettyname =
2601                         translateIfPossible(from_utf8((*fit)->prettyname()));
2602                 QString const loc_filter = toqstr(bformat(from_ascii("%1$s (*.%2$s)"),
2603                                                      loc_prettyname,
2604                                                      from_ascii((*fit)->extension())));
2605                 types << loc_filter;
2606                 fmap[loc_filter] = (*fit)->name();
2607                 if (from_ascii((*fit)->name()) == iformat) {
2608                         filter = loc_filter;
2609                         ext = (*fit)->extension();
2610                 }
2611         }
2612         string ofname = fname.onlyFileName();
2613         if (!ext.empty())
2614                 ofname = support::changeExtension(ofname, ext);
2615         FileDialog::Result result =
2616                 dlg.save(toqstr(fname.onlyPath().absFileName()),
2617                          types,
2618                          toqstr(ofname),
2619                          &filter);
2620         if (result.first != FileDialog::Chosen)
2621                 return false;
2622
2623         string fmt_name;
2624         fname.set(fromqstr(result.second));
2625         if (filter == anyformat)
2626                 fmt_name = formats.getFormatFromExtension(fname.extension());
2627         else
2628                 fmt_name = fmap[filter];
2629         LYXERR(Debug::FILES, "filter=" << fromqstr(filter)
2630                << ", fmt_name=" << fmt_name << ", fname=" << fname.absFileName());
2631
2632         if (fmt_name.empty() || fname.empty())
2633                 return false;
2634
2635         // fname is now the new Buffer location.
2636         if (FileName(fname).exists()) {
2637                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2638                 docstring text = bformat(_("The document %1$s already "
2639                                            "exists.\n\nDo you want to "
2640                                            "overwrite that document?"),
2641                                          file);
2642                 int const ret = Alert::prompt(_("Overwrite document?"),
2643                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2644                 switch (ret) {
2645                 case 0: break;
2646                 case 1: return exportBufferAs(b, from_ascii(fmt_name));
2647                 case 2: return false;
2648                 }
2649         }
2650
2651         FuncRequest cmd(LFUN_BUFFER_EXPORT, fmt_name + " " + fname.absFileName());
2652         DispatchResult dr;
2653         dispatch(cmd, dr);
2654         return dr.dispatched();
2655 }
2656
2657
2658 bool GuiView::saveBuffer(Buffer & b)
2659 {
2660         return saveBuffer(b, FileName());
2661 }
2662
2663
2664 bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
2665 {
2666         if (workArea(b) && workArea(b)->inDialogMode())
2667                 return true;
2668
2669         if (fn.empty() && b.isUnnamed())
2670                 return renameBuffer(b, docstring());
2671
2672         bool const success = (fn.empty() ? b.save() : b.saveAs(fn));
2673         if (success) {
2674                 theSession().lastFiles().add(b.fileName());
2675                 return true;
2676         }
2677
2678         // Switch to this Buffer.
2679         setBuffer(&b);
2680
2681         // FIXME: we don't tell the user *WHY* the save failed !!
2682         docstring const file = makeDisplayPath(b.absFileName(), 30);
2683         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2684                                    "Do you want to rename the document and "
2685                                    "try again?"), file);
2686         int const ret = Alert::prompt(_("Rename and save?"),
2687                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2688         switch (ret) {
2689         case 0:
2690                 if (!renameBuffer(b, docstring()))
2691                         return false;
2692                 break;
2693         case 1:
2694                 break;
2695         case 2:
2696                 return false;
2697         }
2698
2699         return saveBuffer(b, fn);
2700 }
2701
2702
2703 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2704 {
2705         return closeWorkArea(wa, false);
2706 }
2707
2708
2709 // We only want to close the buffer if it is not visible in other workareas
2710 // of the same view, nor in other views, and if this is not a child
2711 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2712 {
2713         Buffer & buf = wa->bufferView().buffer();
2714
2715         bool last_wa = d.countWorkAreasOf(buf) == 1
2716                 && !inOtherView(buf) && !buf.parent();
2717
2718         bool close_buffer = last_wa;
2719
2720         if (last_wa) {
2721                 if (lyxrc.close_buffer_with_last_view == "yes")
2722                         ; // Nothing to do
2723                 else if (lyxrc.close_buffer_with_last_view == "no")
2724                         close_buffer = false;
2725                 else {
2726                         docstring file;
2727                         if (buf.isUnnamed())
2728                                 file = from_utf8(buf.fileName().onlyFileName());
2729                         else
2730                                 file = buf.fileName().displayName(30);
2731                         docstring const text = bformat(
2732                                 _("Last view on document %1$s is being closed.\n"
2733                                   "Would you like to close or hide the document?\n"
2734                                   "\n"
2735                                   "Hidden documents can be displayed back through\n"
2736                                   "the menu: View->Hidden->...\n"
2737                                   "\n"
2738                                   "To remove this question, set your preference in:\n"
2739                                   "  Tools->Preferences->Look&Feel->UserInterface\n"
2740                                 ), file);
2741                         int ret = Alert::prompt(_("Close or hide document?"),
2742                                 text, 0, 1, _("&Close"), _("&Hide"));
2743                         close_buffer = (ret == 0);
2744                 }
2745         }
2746
2747         return closeWorkArea(wa, close_buffer);
2748 }
2749
2750
2751 bool GuiView::closeBuffer()
2752 {
2753         GuiWorkArea * wa = currentMainWorkArea();
2754         setCurrentWorkArea(wa);
2755         Buffer & buf = wa->bufferView().buffer();
2756         return wa && closeWorkArea(wa, !buf.parent());
2757 }
2758
2759
2760 void GuiView::writeSession() const {
2761         GuiWorkArea const * active_wa = currentMainWorkArea();
2762         for (int i = 0; i < d.splitter_->count(); ++i) {
2763                 TabWorkArea * twa = d.tabWorkArea(i);
2764                 for (int j = 0; j < twa->count(); ++j) {
2765                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
2766                         Buffer & buf = wa->bufferView().buffer();
2767                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2768                 }
2769         }
2770 }
2771
2772
2773 bool GuiView::closeBufferAll()
2774 {
2775         // Close the workareas in all other views
2776         QList<int> const ids = guiApp->viewIds();
2777         for (int i = 0; i != ids.size(); ++i) {
2778                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2779                         return false;
2780         }
2781
2782         // Close our own workareas
2783         if (!closeWorkAreaAll())
2784                 return false;
2785
2786         // Now close the hidden buffers. We prevent hidden buffers from being
2787         // dirty, so we can just close them.
2788         theBufferList().closeAll();
2789         return true;
2790 }
2791
2792
2793 bool GuiView::closeWorkAreaAll()
2794 {
2795         setCurrentWorkArea(currentMainWorkArea());
2796
2797         // We might be in a situation that there is still a tabWorkArea, but
2798         // there are no tabs anymore. This can happen when we get here after a
2799         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2800         // many TabWorkArea's have no documents anymore.
2801         int empty_twa = 0;
2802
2803         // We have to call count() each time, because it can happen that
2804         // more than one splitter will disappear in one iteration (bug 5998).
2805         while (d.splitter_->count() > empty_twa) {
2806                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2807
2808                 if (twa->count() == 0)
2809                         ++empty_twa;
2810                 else {
2811                         setCurrentWorkArea(twa->currentWorkArea());
2812                         if (!closeTabWorkArea(twa))
2813                                 return false;
2814                 }
2815         }
2816         return true;
2817 }
2818
2819
2820 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2821 {
2822         if (!wa)
2823                 return false;
2824
2825         Buffer & buf = wa->bufferView().buffer();
2826
2827         if (GuiViewPrivate::busyBuffers.contains(&buf)) {
2828                 Alert::warning(_("Close document"),
2829                         _("Document could not be closed because it is being processed by LyX."));
2830                 return false;
2831         }
2832
2833         if (close_buffer)
2834                 return closeBuffer(buf);
2835         else {
2836                 if (!inMultiTabs(wa))
2837                         if (!saveBufferIfNeeded(buf, true))
2838                                 return false;
2839                 removeWorkArea(wa);
2840                 return true;
2841         }
2842 }
2843
2844
2845 bool GuiView::closeBuffer(Buffer & buf)
2846 {
2847         // If we are in a close_event all children will be closed in some time,
2848         // so no need to do it here. This will ensure that the children end up
2849         // in the session file in the correct order. If we close the master
2850         // buffer, we can close or release the child buffers here too.
2851         bool success = true;
2852         if (!closing_) {
2853                 ListOfBuffers clist = buf.getChildren();
2854                 ListOfBuffers::const_iterator it = clist.begin();
2855                 ListOfBuffers::const_iterator const bend = clist.end();
2856                 for (; it != bend; ++it) {
2857                         Buffer * child_buf = *it;
2858                         if (theBufferList().isOthersChild(&buf, child_buf)) {
2859                                 child_buf->setParent(0);
2860                                 continue;
2861                         }
2862
2863                         // FIXME: should we look in other tabworkareas?
2864                         // ANSWER: I don't think so. I've tested, and if the child is
2865                         // open in some other window, it closes without a problem.
2866                         GuiWorkArea * child_wa = workArea(*child_buf);
2867                         if (child_wa) {
2868                                 success = closeWorkArea(child_wa, true);
2869                                 if (!success)
2870                                         break;
2871                         } else {
2872                                 // In this case the child buffer is open but hidden.
2873                                 // It therefore should not (MUST NOT) be dirty!
2874                                 LATTEST(child_buf->isClean());
2875                                 theBufferList().release(child_buf);
2876                         }
2877                 }
2878         }
2879         if (success) {
2880                 // goto bookmark to update bookmark pit.
2881                 // FIXME: we should update only the bookmarks related to this buffer!
2882                 LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2883                 for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2884                         guiApp->gotoBookmark(i+1, false, false);
2885
2886                 if (saveBufferIfNeeded(buf, false)) {
2887                         buf.removeAutosaveFile();
2888                         theBufferList().release(&buf);
2889                         return true;
2890                 }
2891         }
2892         // open all children again to avoid a crash because of dangling
2893         // pointers (bug 6603)
2894         buf.updateBuffer();
2895         return false;
2896 }
2897
2898
2899 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2900 {
2901         while (twa == d.currentTabWorkArea()) {
2902                 twa->setCurrentIndex(twa->count() - 1);
2903
2904                 GuiWorkArea * wa = twa->currentWorkArea();
2905                 Buffer & b = wa->bufferView().buffer();
2906
2907                 // We only want to close the buffer if the same buffer is not visible
2908                 // in another view, and if this is not a child and if we are closing
2909                 // a view (not a tabgroup).
2910                 bool const close_buffer =
2911                         !inOtherView(b) && !b.parent() && closing_;
2912
2913                 if (!closeWorkArea(wa, close_buffer))
2914                         return false;
2915         }
2916         return true;
2917 }
2918
2919
2920 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2921 {
2922         if (buf.isClean() || buf.paragraphs().empty())
2923                 return true;
2924
2925         // Switch to this Buffer.
2926         setBuffer(&buf);
2927
2928         docstring file;
2929         // FIXME: Unicode?
2930         if (buf.isUnnamed())
2931                 file = from_utf8(buf.fileName().onlyFileName());
2932         else
2933                 file = buf.fileName().displayName(30);
2934
2935         // Bring this window to top before asking questions.
2936         raise();
2937         activateWindow();
2938
2939         int ret;
2940         if (hiding && buf.isUnnamed()) {
2941                 docstring const text = bformat(_("The document %1$s has not been "
2942                                                  "saved yet.\n\nDo you want to save "
2943                                                  "the document?"), file);
2944                 ret = Alert::prompt(_("Save new document?"),
2945                         text, 0, 1, _("&Save"), _("&Cancel"));
2946                 if (ret == 1)
2947                         ++ret;
2948         } else {
2949                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2950                         "\n\nDo you want to save the document or discard the changes?"), file);
2951                 ret = Alert::prompt(_("Save changed document?"),
2952                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2953         }
2954
2955         switch (ret) {
2956         case 0:
2957                 if (!saveBuffer(buf))
2958                         return false;
2959                 break;
2960         case 1:
2961                 // If we crash after this we could have no autosave file
2962                 // but I guess this is really improbable (Jug).
2963                 // Sometimes improbable things happen:
2964                 // - see bug http://www.lyx.org/trac/ticket/6587 (ps)
2965                 // buf.removeAutosaveFile();
2966                 if (hiding)
2967                         // revert all changes
2968                         reloadBuffer(buf);
2969                 buf.markClean();
2970                 break;
2971         case 2:
2972                 return false;
2973         }
2974         return true;
2975 }
2976
2977
2978 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2979 {
2980         Buffer & buf = wa->bufferView().buffer();
2981
2982         for (int i = 0; i != d.splitter_->count(); ++i) {
2983                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2984                 if (wa_ && wa_ != wa)
2985                         return true;
2986         }
2987         return inOtherView(buf);
2988 }
2989
2990
2991 bool GuiView::inOtherView(Buffer & buf)
2992 {
2993         QList<int> const ids = guiApp->viewIds();
2994
2995         for (int i = 0; i != ids.size(); ++i) {
2996                 if (id_ == ids[i])
2997                         continue;
2998
2999                 if (guiApp->view(ids[i]).workArea(buf))
3000                         return true;
3001         }
3002         return false;
3003 }
3004
3005
3006 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move)
3007 {
3008         if (!documentBufferView())
3009                 return;
3010
3011         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3012                 Buffer * const curbuf = &documentBufferView()->buffer();
3013                 int nwa = twa->count();
3014                 for (int i = 0; i < nwa; ++i) {
3015                         if (&workArea(i)->bufferView().buffer() == curbuf) {
3016                                 int next_index;
3017                                 if (np == NEXTBUFFER)
3018                                         next_index = (i == nwa - 1 ? 0 : i + 1);
3019                                 else
3020                                         next_index = (i == 0 ? nwa - 1 : i - 1);
3021                                 if (move)
3022                                         twa->moveTab(i, next_index);
3023                                 else
3024                                         setBuffer(&workArea(next_index)->bufferView().buffer());
3025                                 break;
3026                         }
3027                 }
3028         }
3029 }
3030
3031
3032 /// make sure the document is saved
3033 static bool ensureBufferClean(Buffer * buffer)
3034 {
3035         LASSERT(buffer, return false);
3036         if (buffer->isClean() && !buffer->isUnnamed())
3037                 return true;
3038
3039         docstring const file = buffer->fileName().displayName(30);
3040         docstring title;
3041         docstring text;
3042         if (!buffer->isUnnamed()) {
3043                 text = bformat(_("The document %1$s has unsaved "
3044                                                  "changes.\n\nDo you want to save "
3045                                                  "the document?"), file);
3046                 title = _("Save changed document?");
3047
3048         } else {
3049                 text = bformat(_("The document %1$s has not been "
3050                                                  "saved yet.\n\nDo you want to save "
3051                                                  "the document?"), file);
3052                 title = _("Save new document?");
3053         }
3054         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
3055
3056         if (ret == 0)
3057                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
3058
3059         return buffer->isClean() && !buffer->isUnnamed();
3060 }
3061
3062
3063 bool GuiView::reloadBuffer(Buffer & buf)
3064 {
3065         Buffer::ReadStatus status = buf.reload();
3066         return status == Buffer::ReadSuccess;
3067 }
3068
3069
3070 void GuiView::checkExternallyModifiedBuffers()
3071 {
3072         BufferList::iterator bit = theBufferList().begin();
3073         BufferList::iterator const bend = theBufferList().end();
3074         for (; bit != bend; ++bit) {
3075                 Buffer * buf = *bit;
3076                 if (buf->fileName().exists()
3077                         && buf->isExternallyModified(Buffer::checksum_method)) {
3078                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
3079                                         " Reload now? Any local changes will be lost."),
3080                                         from_utf8(buf->absFileName()));
3081                         int const ret = Alert::prompt(_("Reload externally changed document?"),
3082                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
3083                         if (!ret)
3084                                 reloadBuffer(*buf);
3085                 }
3086         }
3087 }
3088
3089
3090 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
3091 {
3092         Buffer * buffer = documentBufferView()
3093                 ? &(documentBufferView()->buffer()) : 0;
3094
3095         switch (cmd.action()) {
3096         case LFUN_VC_REGISTER:
3097                 if (!buffer || !ensureBufferClean(buffer))
3098                         break;
3099                 if (!buffer->lyxvc().inUse()) {
3100                         if (buffer->lyxvc().registrer()) {
3101                                 reloadBuffer(*buffer);
3102                                 dr.clearMessageUpdate();
3103                         }
3104                 }
3105                 break;
3106
3107         case LFUN_VC_RENAME:
3108         case LFUN_VC_COPY: {
3109                 if (!buffer || !ensureBufferClean(buffer))
3110                         break;
3111                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
3112                         if (buffer->lyxvc().isCheckInWithConfirmation()) {
3113                                 // Some changes are not yet committed.
3114                                 // We test here and not in getStatus(), since
3115                                 // this test is expensive.
3116                                 string log;
3117                                 LyXVC::CommandResult ret =
3118                                         buffer->lyxvc().checkIn(log);
3119                                 dr.setMessage(log);
3120                                 if (ret == LyXVC::ErrorCommand ||
3121                                     ret == LyXVC::VCSuccess)
3122                                         reloadBuffer(*buffer);
3123                                 if (buffer->lyxvc().isCheckInWithConfirmation()) {
3124                                         frontend::Alert::error(
3125                                                 _("Revision control error."),
3126                                                 _("Document could not be checked in."));
3127                                         break;
3128                                 }
3129                         }
3130                         RenameKind const kind = (cmd.action() == LFUN_VC_RENAME) ?
3131                                 LV_VC_RENAME : LV_VC_COPY;
3132                         renameBuffer(*buffer, cmd.argument(), kind);
3133                 }
3134                 break;
3135         }
3136
3137         case LFUN_VC_CHECK_IN:
3138                 if (!buffer || !ensureBufferClean(buffer))
3139                         break;
3140                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
3141                         string log;
3142                         LyXVC::CommandResult ret = buffer->lyxvc().checkIn(log);
3143                         dr.setMessage(log);
3144                         // Only skip reloading if the checkin was cancelled or
3145                         // an error occurred before the real checkin VCS command
3146                         // was executed, since the VCS might have changed the
3147                         // file even if it could not checkin successfully.
3148                         if (ret == LyXVC::ErrorCommand || ret == LyXVC::VCSuccess)
3149                                 reloadBuffer(*buffer);
3150                 }
3151                 break;
3152
3153         case LFUN_VC_CHECK_OUT:
3154                 if (!buffer || !ensureBufferClean(buffer))
3155                         break;
3156                 if (buffer->lyxvc().inUse()) {
3157                         dr.setMessage(buffer->lyxvc().checkOut());
3158                         reloadBuffer(*buffer);
3159                 }
3160                 break;
3161
3162         case LFUN_VC_LOCKING_TOGGLE:
3163                 LASSERT(buffer, return);
3164                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
3165                         break;
3166                 if (buffer->lyxvc().inUse()) {
3167                         string res = buffer->lyxvc().lockingToggle();
3168                         if (res.empty()) {
3169                                 frontend::Alert::error(_("Revision control error."),
3170                                 _("Error when setting the locking property."));
3171                         } else {
3172                                 dr.setMessage(res);
3173                                 reloadBuffer(*buffer);
3174                         }
3175                 }
3176                 break;
3177
3178         case LFUN_VC_REVERT:
3179                 LASSERT(buffer, return);
3180                 if (buffer->lyxvc().revert()) {
3181                         reloadBuffer(*buffer);
3182                         dr.clearMessageUpdate();
3183                 }
3184                 break;
3185
3186         case LFUN_VC_UNDO_LAST:
3187                 LASSERT(buffer, return);
3188                 buffer->lyxvc().undoLast();
3189                 reloadBuffer(*buffer);
3190                 dr.clearMessageUpdate();
3191                 break;
3192
3193         case LFUN_VC_REPO_UPDATE:
3194                 LASSERT(buffer, return);
3195                 if (ensureBufferClean(buffer)) {
3196                         dr.setMessage(buffer->lyxvc().repoUpdate());
3197                         checkExternallyModifiedBuffers();
3198                 }
3199                 break;
3200
3201         case LFUN_VC_COMMAND: {
3202                 string flag = cmd.getArg(0);
3203                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
3204                         break;
3205                 docstring message;
3206                 if (contains(flag, 'M')) {
3207                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
3208                                 break;
3209                 }
3210                 string path = cmd.getArg(1);
3211                 if (contains(path, "$$p") && buffer)
3212                         path = subst(path, "$$p", buffer->filePath());
3213                 LYXERR(Debug::LYXVC, "Directory: " << path);
3214                 FileName pp(path);
3215                 if (!pp.isReadableDirectory()) {
3216                         lyxerr << _("Directory is not accessible.") << endl;
3217                         break;
3218                 }
3219                 support::PathChanger p(pp);
3220
3221                 string command = cmd.getArg(2);
3222                 if (command.empty())
3223                         break;
3224                 if (buffer) {
3225                         command = subst(command, "$$i", buffer->absFileName());
3226                         command = subst(command, "$$p", buffer->filePath());
3227                 }
3228                 command = subst(command, "$$m", to_utf8(message));
3229                 LYXERR(Debug::LYXVC, "Command: " << command);
3230                 Systemcall one;
3231                 one.startscript(Systemcall::Wait, command);
3232
3233                 if (!buffer)
3234                         break;
3235                 if (contains(flag, 'I'))
3236                         buffer->markDirty();
3237                 if (contains(flag, 'R'))
3238                         reloadBuffer(*buffer);
3239
3240                 break;
3241                 }
3242
3243         case LFUN_VC_COMPARE: {
3244
3245                 if (cmd.argument().empty()) {
3246                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
3247                         break;
3248                 }
3249
3250                 string rev1 = cmd.getArg(0);
3251                 string f1, f2;
3252
3253                 // f1
3254                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
3255                         break;
3256
3257                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
3258                         f2 = buffer->absFileName();
3259                 } else {
3260                         string rev2 = cmd.getArg(1);
3261                         if (rev2.empty())
3262                                 break;
3263                         // f2
3264                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
3265                                 break;
3266                 }
3267
3268                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
3269                                         f1 << "\n"  << f2 << "\n" );
3270                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
3271                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
3272                 break;
3273         }
3274
3275         default:
3276                 break;
3277         }
3278 }
3279
3280
3281 void GuiView::openChildDocument(string const & fname)
3282 {
3283         LASSERT(documentBufferView(), return);
3284         Buffer & buffer = documentBufferView()->buffer();
3285         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
3286         documentBufferView()->saveBookmark(false);
3287         Buffer * child = 0;
3288         if (theBufferList().exists(filename)) {
3289                 child = theBufferList().getBuffer(filename);
3290                 setBuffer(child);
3291         } else {
3292                 message(bformat(_("Opening child document %1$s..."),
3293                         makeDisplayPath(filename.absFileName())));
3294                 child = loadDocument(filename, false);
3295         }
3296         // Set the parent name of the child document.
3297         // This makes insertion of citations and references in the child work,
3298         // when the target is in the parent or another child document.
3299         if (child)
3300                 child->setParent(&buffer);
3301 }
3302
3303
3304 bool GuiView::goToFileRow(string const & argument)
3305 {
3306         string file_name;
3307         int row;
3308         size_t i = argument.find_last_of(' ');
3309         if (i != string::npos) {
3310                 file_name = os::internal_path(trim(argument.substr(0, i)));
3311                 istringstream is(argument.substr(i + 1));
3312                 is >> row;
3313                 if (is.fail())
3314                         i = string::npos;
3315         }
3316         if (i == string::npos) {
3317                 LYXERR0("Wrong argument: " << argument);
3318                 return false;
3319         }
3320         Buffer * buf = 0;
3321         string const abstmp = package().temp_dir().absFileName();
3322         string const realtmp = package().temp_dir().realPath();
3323         // We have to use os::path_prefix_is() here, instead of
3324         // simply prefixIs(), because the file name comes from
3325         // an external application and may need case adjustment.
3326         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
3327                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
3328                 // Needed by inverse dvi search. If it is a file
3329                 // in tmpdir, call the apropriated function.
3330                 // If tmpdir is a symlink, we may have the real
3331                 // path passed back, so we correct for that.
3332                 if (!prefixIs(file_name, abstmp))
3333                         file_name = subst(file_name, realtmp, abstmp);
3334                 buf = theBufferList().getBufferFromTmp(file_name);
3335         } else {
3336                 // Must replace extension of the file to be .lyx
3337                 // and get full path
3338                 FileName const s = fileSearch(string(),
3339                                                   support::changeExtension(file_name, ".lyx"), "lyx");
3340                 // Either change buffer or load the file
3341                 if (theBufferList().exists(s))
3342                         buf = theBufferList().getBuffer(s);
3343                 else if (s.exists()) {
3344                         buf = loadDocument(s);
3345                         if (!buf)
3346                                 return false;
3347                 } else {
3348                         message(bformat(
3349                                         _("File does not exist: %1$s"),
3350                                         makeDisplayPath(file_name)));
3351                         return false;
3352                 }
3353         }
3354         if (!buf) {
3355                 message(bformat(
3356                         _("No buffer for file: %1$s."),
3357                         makeDisplayPath(file_name))
3358                 );
3359                 return false;
3360         }
3361         setBuffer(buf);
3362         documentBufferView()->setCursorFromRow(row);
3363         return true;
3364 }
3365
3366
3367 template<class T>
3368 Buffer::ExportStatus GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * clone, string const & format)
3369 {
3370         Buffer::ExportStatus const status = func(format);
3371
3372         // the cloning operation will have produced a clone of the entire set of
3373         // documents, starting from the master. so we must delete those.
3374         Buffer * mbuf = const_cast<Buffer *>(clone->masterBuffer());
3375         delete mbuf;
3376         busyBuffers.remove(orig);
3377         return status;
3378 }
3379
3380
3381 Buffer::ExportStatus GuiView::GuiViewPrivate::compileAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3382 {
3383         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3384         return runAndDestroy(lyx::bind(mem_func, clone, _1, true), orig, clone, format);
3385 }
3386
3387
3388 Buffer::ExportStatus GuiView::GuiViewPrivate::exportAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3389 {
3390         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3391         return runAndDestroy(lyx::bind(mem_func, clone, _1, false), orig, clone, format);
3392 }
3393
3394
3395 Buffer::ExportStatus GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3396 {
3397         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &) const = &Buffer::preview;
3398         return runAndDestroy(lyx::bind(mem_func, clone, _1), orig, clone, format);
3399 }
3400
3401
3402 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
3403                            string const & argument,
3404                            Buffer const * used_buffer,
3405                            docstring const & msg,
3406                            Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
3407                            Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
3408                            Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const)
3409 {
3410         if (!used_buffer)
3411                 return false;
3412
3413         string format = argument;
3414         if (format.empty())
3415                 format = used_buffer->params().getDefaultOutputFormat();
3416         processing_format = format;
3417         if (!msg.empty()) {
3418                 progress_->clearMessages();
3419                 gv_->message(msg);
3420         }
3421 #if EXPORT_in_THREAD
3422         GuiViewPrivate::busyBuffers.insert(used_buffer);
3423         Buffer * cloned_buffer = used_buffer->cloneFromMaster();
3424         if (!cloned_buffer) {
3425                 Alert::error(_("Export Error"),
3426                              _("Error cloning the Buffer."));
3427                 return false;
3428         }
3429         QFuture<Buffer::ExportStatus> f = QtConcurrent::run(
3430                                 asyncFunc,
3431                                 used_buffer,
3432                                 cloned_buffer,
3433                                 format);
3434         setPreviewFuture(f);
3435         last_export_format = used_buffer->params().bufferFormat();
3436         (void) syncFunc;
3437         (void) previewFunc;
3438         // We are asynchronous, so we don't know here anything about the success
3439         return true;
3440 #else
3441         Buffer::ExportStatus status;
3442         if (syncFunc) {
3443                 // TODO check here if it breaks exporting with Qt < 4.4
3444                 status = (used_buffer->*syncFunc)(format, true);
3445         } else if (previewFunc) {
3446                 status = (used_buffer->*previewFunc)(format);
3447         } else
3448                 return false;
3449         handleExportStatus(gv_, status, format);
3450         (void) asyncFunc;
3451         return (status == Buffer::ExportSuccess
3452                         || status == Buffer::PreviewSuccess);
3453 #endif
3454 }
3455
3456 void GuiView::dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr)
3457 {
3458         BufferView * bv = currentBufferView();
3459         LASSERT(bv, return);
3460
3461         // Let the current BufferView dispatch its own actions.
3462         bv->dispatch(cmd, dr);
3463         if (dr.dispatched())
3464                 return;
3465
3466         // Try with the document BufferView dispatch if any.
3467         BufferView * doc_bv = documentBufferView();
3468         if (doc_bv && doc_bv != bv) {
3469                 doc_bv->dispatch(cmd, dr);
3470                 if (dr.dispatched())
3471                         return;
3472         }
3473
3474         // Then let the current Cursor dispatch its own actions.
3475         bv->cursor().dispatch(cmd);
3476
3477         // update completion. We do it here and not in
3478         // processKeySym to avoid another redraw just for a
3479         // changed inline completion
3480         if (cmd.origin() == FuncRequest::KEYBOARD) {
3481                 if (cmd.action() == LFUN_SELF_INSERT
3482                         || (cmd.action() == LFUN_ERT_INSERT && bv->cursor().inMathed()))
3483                         updateCompletion(bv->cursor(), true, true);
3484                 else if (cmd.action() == LFUN_CHAR_DELETE_BACKWARD)
3485                         updateCompletion(bv->cursor(), false, true);
3486                 else
3487                         updateCompletion(bv->cursor(), false, false);
3488         }
3489
3490         dr = bv->cursor().result();
3491 }
3492
3493
3494 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
3495 {
3496         BufferView * bv = currentBufferView();
3497         // By default we won't need any update.
3498         dr.screenUpdate(Update::None);
3499         // assume cmd will be dispatched
3500         dr.dispatched(true);
3501
3502         Buffer * doc_buffer = documentBufferView()
3503                 ? &(documentBufferView()->buffer()) : 0;
3504
3505         if (cmd.origin() == FuncRequest::TOC) {
3506                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
3507                 // FIXME: do we need to pass a DispatchResult object here?
3508                 toc->doDispatch(bv->cursor(), cmd);
3509                 return;
3510         }
3511
3512         string const argument = to_utf8(cmd.argument());
3513
3514         switch(cmd.action()) {
3515                 case LFUN_BUFFER_CHILD_OPEN:
3516                         openChildDocument(to_utf8(cmd.argument()));
3517                         break;
3518
3519                 case LFUN_BUFFER_IMPORT:
3520                         importDocument(to_utf8(cmd.argument()));
3521                         break;
3522
3523                 case LFUN_BUFFER_EXPORT: {
3524                         if (!doc_buffer)
3525                                 break;
3526                         FileName target_dir = doc_buffer->fileName().onlyPath();
3527                         string const dest = cmd.getArg(1);
3528                         if (!dest.empty() && FileName::isAbsolute(dest))
3529                                 target_dir = FileName(support::onlyPath(dest));
3530                         // GCC only sees strfwd.h when building merged
3531                         if (::lyx::operator==(cmd.argument(), "custom")) {
3532                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
3533                                 break;
3534                         }
3535                         if (!target_dir.isDirWritable()) {
3536                                 exportBufferAs(*doc_buffer, cmd.argument());
3537                                 break;
3538                         }
3539                         /* TODO/Review: Is it a problem to also export the children?
3540                                         See the update_unincluded flag */
3541                         d.asyncBufferProcessing(argument,
3542                                                 doc_buffer,
3543                                                 _("Exporting ..."),
3544                                                 &GuiViewPrivate::exportAndDestroy,
3545                                                 &Buffer::doExport,
3546                                                 0);
3547                         // TODO Inform user about success
3548                         break;
3549                 }
3550
3551                 case LFUN_BUFFER_EXPORT_AS: {
3552                         LASSERT(doc_buffer, break);
3553                         docstring f = cmd.argument();
3554                         if (f.empty())
3555                                 f = from_ascii(doc_buffer->params().getDefaultOutputFormat());
3556                         exportBufferAs(*doc_buffer, f);
3557                         break;
3558                 }
3559
3560                 case LFUN_BUFFER_UPDATE: {
3561                         d.asyncBufferProcessing(argument,
3562                                                 doc_buffer,
3563                                                 _("Exporting ..."),
3564                                                 &GuiViewPrivate::compileAndDestroy,
3565                                                 &Buffer::doExport,
3566                                                 0);
3567                         break;
3568                 }
3569                 case LFUN_BUFFER_VIEW: {
3570                         d.asyncBufferProcessing(argument,
3571                                                 doc_buffer,
3572                                                 _("Previewing ..."),
3573                                                 &GuiViewPrivate::previewAndDestroy,
3574                                                 0,
3575                                                 &Buffer::preview);
3576                         break;
3577                 }
3578                 case LFUN_MASTER_BUFFER_UPDATE: {
3579                         d.asyncBufferProcessing(argument,
3580                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3581                                                 docstring(),
3582                                                 &GuiViewPrivate::compileAndDestroy,
3583                                                 &Buffer::doExport,
3584                                                 0);
3585                         break;
3586                 }
3587                 case LFUN_MASTER_BUFFER_VIEW: {
3588                         d.asyncBufferProcessing(argument,
3589                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3590                                                 docstring(),
3591                                                 &GuiViewPrivate::previewAndDestroy,
3592                                                 0, &Buffer::preview);
3593                         break;
3594                 }
3595                 case LFUN_BUFFER_SWITCH: {
3596                         string const file_name = to_utf8(cmd.argument());
3597                         if (!FileName::isAbsolute(file_name)) {
3598                                 dr.setError(true);
3599                                 dr.setMessage(_("Absolute filename expected."));
3600                                 break;
3601                         }
3602
3603                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3604                         if (!buffer) {
3605                                 dr.setError(true);
3606                                 dr.setMessage(_("Document not loaded"));
3607                                 break;
3608                         }
3609
3610                         // Do we open or switch to the buffer in this view ?
3611                         if (workArea(*buffer)
3612                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3613                                 setBuffer(buffer);
3614                                 break;
3615                         }
3616
3617                         // Look for the buffer in other views
3618                         QList<int> const ids = guiApp->viewIds();
3619                         int i = 0;
3620                         for (; i != ids.size(); ++i) {
3621                                 GuiView & gv = guiApp->view(ids[i]);
3622                                 if (gv.workArea(*buffer)) {
3623                                         gv.raise();
3624                                         gv.activateWindow();
3625                                         gv.setFocus();
3626                                         gv.setBuffer(buffer);
3627                                         break;
3628                                 }
3629                         }
3630
3631                         // If necessary, open a new window as a last resort
3632                         if (i == ids.size()) {
3633                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3634                                 lyx::dispatch(cmd);
3635                         }
3636                         break;
3637                 }
3638
3639                 case LFUN_BUFFER_NEXT:
3640                         gotoNextOrPreviousBuffer(NEXTBUFFER, false);
3641                         break;
3642
3643                 case LFUN_BUFFER_MOVE_NEXT:
3644                         gotoNextOrPreviousBuffer(NEXTBUFFER, true);
3645                         break;
3646
3647                 case LFUN_BUFFER_PREVIOUS:
3648                         gotoNextOrPreviousBuffer(PREVBUFFER, false);
3649                         break;
3650
3651                 case LFUN_BUFFER_MOVE_PREVIOUS:
3652                         gotoNextOrPreviousBuffer(PREVBUFFER, true);
3653                         break;
3654
3655                 case LFUN_COMMAND_EXECUTE: {
3656                         command_execute_ = true;
3657                         break;
3658                 }
3659                 case LFUN_DROP_LAYOUTS_CHOICE:
3660                         d.layout_->showPopup();
3661                         break;
3662
3663                 case LFUN_MENU_OPEN:
3664                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3665                                 menu->exec(QCursor::pos());
3666                         break;
3667
3668                 case LFUN_FILE_INSERT:
3669                         insertLyXFile(cmd.argument());
3670                         break;
3671
3672                 case LFUN_FILE_INSERT_PLAINTEXT:
3673                 case LFUN_FILE_INSERT_PLAINTEXT_PARA: {
3674                         string const fname = to_utf8(cmd.argument());
3675                         if (!fname.empty() && !FileName::isAbsolute(fname)) {
3676                                 dr.setMessage(_("Absolute filename expected."));
3677                                 break;
3678                         }
3679
3680                         FileName filename(fname);
3681                         if (fname.empty()) {
3682                                 FileDialog dlg(qt_("Select file to insert"));
3683
3684                                 FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
3685                                         QStringList(qt_("All Files (*)")));
3686
3687                                 if (result.first == FileDialog::Later || result.second.isEmpty()) {
3688                                         dr.setMessage(_("Canceled."));
3689                                         break;
3690                                 }
3691
3692                                 filename.set(fromqstr(result.second));
3693                         }
3694
3695                         if (bv) {
3696                                 FuncRequest const new_cmd(cmd, filename.absoluteFilePath());
3697                                 bv->dispatch(new_cmd, dr);
3698                         }
3699                         break;
3700                 }
3701
3702                 case LFUN_BUFFER_RELOAD: {
3703                         LASSERT(doc_buffer, break);
3704
3705                         int ret = 0;
3706                         if (!doc_buffer->isClean()) {
3707                                 docstring const file =
3708                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3709                                 docstring text = bformat(_("Any changes will be lost. "
3710                                         "Are you sure you want to revert to the saved version "
3711                                         "of the document %1$s?"), file);
3712                                 ret = Alert::prompt(_("Revert to saved document?"),
3713                                         text, 1, 1, _("&Revert"), _("&Cancel"));
3714                         }
3715
3716                         if (ret == 0) {
3717                                 doc_buffer->markClean();
3718                                 reloadBuffer(*doc_buffer);
3719                                 dr.forceBufferUpdate();
3720                         }
3721                         break;
3722                 }
3723
3724                 case LFUN_BUFFER_WRITE:
3725                         LASSERT(doc_buffer, break);
3726                         saveBuffer(*doc_buffer);
3727                         break;
3728
3729                 case LFUN_BUFFER_WRITE_AS:
3730                         LASSERT(doc_buffer, break);
3731                         renameBuffer(*doc_buffer, cmd.argument());
3732                         break;
3733
3734                 case LFUN_BUFFER_WRITE_ALL: {
3735                         Buffer * first = theBufferList().first();
3736                         if (!first)
3737                                 break;
3738                         message(_("Saving all documents..."));
3739                         // We cannot use a for loop as the buffer list cycles.
3740                         Buffer * b = first;
3741                         do {
3742                                 if (!b->isClean()) {
3743                                         saveBuffer(*b);
3744                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3745                                 }
3746                                 b = theBufferList().next(b);
3747                         } while (b != first);
3748                         dr.setMessage(_("All documents saved."));
3749                         break;
3750                 }
3751
3752                 case LFUN_BUFFER_CLOSE:
3753                         closeBuffer();
3754                         break;
3755
3756                 case LFUN_BUFFER_CLOSE_ALL:
3757                         closeBufferAll();
3758                         break;
3759
3760                 case LFUN_TOOLBAR_TOGGLE: {
3761                         string const name = cmd.getArg(0);
3762                         if (GuiToolbar * t = toolbar(name))
3763                                 t->toggle();
3764                         break;
3765                 }
3766
3767                 case LFUN_DIALOG_UPDATE: {
3768                         string const name = to_utf8(cmd.argument());
3769                         if (name == "prefs" || name == "document")
3770                                 updateDialog(name, string());
3771                         else if (name == "paragraph")
3772                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3773                         else if (currentBufferView()) {
3774                                 Inset * inset = currentBufferView()->editedInset(name);
3775                                 // Can only update a dialog connected to an existing inset
3776                                 if (inset) {
3777                                         // FIXME: get rid of this indirection; GuiView ask the inset
3778                                         // if he is kind enough to update itself...
3779                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3780                                         //FIXME: pass DispatchResult here?
3781                                         inset->dispatch(currentBufferView()->cursor(), fr);
3782                                 }
3783                         }
3784                         break;
3785                 }
3786
3787                 case LFUN_DIALOG_TOGGLE: {
3788                         FuncCode const func_code = isDialogVisible(cmd.getArg(0))
3789                                 ? LFUN_DIALOG_HIDE : LFUN_DIALOG_SHOW;
3790                         dispatch(FuncRequest(func_code, cmd.argument()), dr);
3791                         break;
3792                 }
3793
3794                 case LFUN_DIALOG_DISCONNECT_INSET:
3795                         disconnectDialog(to_utf8(cmd.argument()));
3796                         break;
3797
3798                 case LFUN_DIALOG_HIDE: {
3799                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3800                         break;
3801                 }
3802
3803                 case LFUN_DIALOG_SHOW: {
3804                         string const name = cmd.getArg(0);
3805                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3806
3807                         if (name == "character") {
3808                                 data = freefont2string();
3809                                 if (!data.empty())
3810                                         showDialog("character", data);
3811                         } else if (name == "latexlog") {
3812                                 Buffer::LogType type;
3813                                 string const logfile = doc_buffer->logName(&type);
3814                                 switch (type) {
3815                                 case Buffer::latexlog:
3816                                         data = "latex ";
3817                                         break;
3818                                 case Buffer::buildlog:
3819                                         data = "literate ";
3820                                         break;
3821                                 }
3822                                 data += Lexer::quoteString(logfile);
3823                                 showDialog("log", data);
3824                         } else if (name == "vclog") {
3825                                 string const data = "vc " +
3826                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3827                                 showDialog("log", data);
3828                         } else if (name == "symbols") {
3829                                 data = bv->cursor().getEncoding()->name();
3830                                 if (!data.empty())
3831                                         showDialog("symbols", data);
3832                         // bug 5274
3833                         } else if (name == "prefs" && isFullScreen()) {
3834                                 lfunUiToggle("fullscreen");
3835                                 showDialog("prefs", data);
3836                         } else
3837                                 showDialog(name, data);
3838                         break;
3839                 }
3840
3841                 case LFUN_MESSAGE:
3842                         dr.setMessage(cmd.argument());
3843                         break;
3844
3845                 case LFUN_UI_TOGGLE: {
3846                         string arg = cmd.getArg(0);
3847                         if (!lfunUiToggle(arg)) {
3848                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3849                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3850                         }
3851                         // Make sure the keyboard focus stays in the work area.
3852                         setFocus();
3853                         break;
3854                 }
3855
3856                 case LFUN_VIEW_SPLIT: {
3857                         LASSERT(doc_buffer, break);
3858                         string const orientation = cmd.getArg(0);
3859                         d.splitter_->setOrientation(orientation == "vertical"
3860                                 ? Qt::Vertical : Qt::Horizontal);
3861                         TabWorkArea * twa = addTabWorkArea();
3862                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3863                         setCurrentWorkArea(wa);
3864                         break;
3865                 }
3866                 case LFUN_TAB_GROUP_CLOSE:
3867                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3868                                 closeTabWorkArea(twa);
3869                                 d.current_work_area_ = 0;
3870                                 twa = d.currentTabWorkArea();
3871                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3872                                 if (twa) {
3873                                         // Make sure the work area is up to date.
3874                                         setCurrentWorkArea(twa->currentWorkArea());
3875                                 } else {
3876                                         setCurrentWorkArea(0);
3877                                 }
3878                         }
3879                         break;
3880
3881                 case LFUN_VIEW_CLOSE:
3882                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3883                                 closeWorkArea(twa->currentWorkArea());
3884                                 d.current_work_area_ = 0;
3885                                 twa = d.currentTabWorkArea();
3886                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3887                                 if (twa) {
3888                                         // Make sure the work area is up to date.
3889                                         setCurrentWorkArea(twa->currentWorkArea());
3890                                 } else {
3891                                         setCurrentWorkArea(0);
3892                                 }
3893                         }
3894                         break;
3895
3896                 case LFUN_COMPLETION_INLINE:
3897                         if (d.current_work_area_)
3898                                 d.current_work_area_->completer().showInline();
3899                         break;
3900
3901                 case LFUN_COMPLETION_POPUP:
3902                         if (d.current_work_area_)
3903                                 d.current_work_area_->completer().showPopup();
3904                         break;
3905
3906
3907                 case LFUN_COMPLETE:
3908                         if (d.current_work_area_)
3909                                 d.current_work_area_->completer().tab();
3910                         break;
3911
3912                 case LFUN_COMPLETION_CANCEL:
3913                         if (d.current_work_area_) {
3914                                 if (d.current_work_area_->completer().popupVisible())
3915                                         d.current_work_area_->completer().hidePopup();
3916                                 else
3917                                         d.current_work_area_->completer().hideInline();
3918                         }
3919                         break;
3920
3921                 case LFUN_COMPLETION_ACCEPT:
3922                         if (d.current_work_area_)
3923                                 d.current_work_area_->completer().activate();
3924                         break;
3925
3926                 case LFUN_BUFFER_ZOOM_IN:
3927                 case LFUN_BUFFER_ZOOM_OUT:
3928                         if (cmd.argument().empty()) {
3929                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3930                                         lyxrc.zoom += 20;
3931                                 else
3932                                         lyxrc.zoom -= 20;
3933                         } else
3934                                 lyxrc.zoom += convert<int>(cmd.argument());
3935
3936                         if (lyxrc.zoom < 10)
3937                                 lyxrc.zoom = 10;
3938
3939                         // The global QPixmapCache is used in GuiPainter to cache text
3940                         // painting so we must reset it.
3941                         QPixmapCache::clear();
3942                         guiApp->fontLoader().update();
3943                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3944                         break;
3945
3946                 case LFUN_VC_REGISTER:
3947                 case LFUN_VC_RENAME:
3948                 case LFUN_VC_COPY:
3949                 case LFUN_VC_CHECK_IN:
3950                 case LFUN_VC_CHECK_OUT:
3951                 case LFUN_VC_REPO_UPDATE:
3952                 case LFUN_VC_LOCKING_TOGGLE:
3953                 case LFUN_VC_REVERT:
3954                 case LFUN_VC_UNDO_LAST:
3955                 case LFUN_VC_COMMAND:
3956                 case LFUN_VC_COMPARE:
3957                         dispatchVC(cmd, dr);
3958                         break;
3959
3960                 case LFUN_SERVER_GOTO_FILE_ROW:
3961                         goToFileRow(to_utf8(cmd.argument()));
3962                         break;
3963
3964                 case LFUN_FORWARD_SEARCH: {
3965                         Buffer const * doc_master = doc_buffer->masterBuffer();
3966                         FileName const path(doc_master->temppath());
3967                         string const texname = doc_master->isChild(doc_buffer)
3968                                 ? DocFileName(changeExtension(
3969                                         doc_buffer->absFileName(),
3970                                                 "tex")).mangledFileName()
3971                                 : doc_buffer->latexName();
3972                         string const fulltexname =
3973                                 support::makeAbsPath(texname, doc_master->temppath()).absFileName();
3974                         string const mastername =
3975                                 removeExtension(doc_master->latexName());
3976                         FileName const dviname(addName(path.absFileName(),
3977                                         addExtension(mastername, "dvi")));
3978                         FileName const pdfname(addName(path.absFileName(),
3979                                         addExtension(mastername, "pdf")));
3980                         bool const have_dvi = dviname.exists();
3981                         bool const have_pdf = pdfname.exists();
3982                         if (!have_dvi && !have_pdf) {
3983                                 dr.setMessage(_("Please, preview the document first."));
3984                                 break;
3985                         }
3986                         string outname = dviname.onlyFileName();
3987                         string command = lyxrc.forward_search_dvi;
3988                         if (!have_dvi || (have_pdf &&
3989                             pdfname.lastModified() > dviname.lastModified())) {
3990                                 outname = pdfname.onlyFileName();
3991                                 command = lyxrc.forward_search_pdf;
3992                         }
3993
3994                         DocIterator cur = bv->cursor();
3995                         int row = doc_buffer->texrow().rowFromDocIterator(cur).first;
3996                         LYXERR(Debug::ACTION, "Forward search: row:" << row
3997                                    << " cur:" << cur);
3998                         if (row == -1 || command.empty()) {
3999                                 dr.setMessage(_("Couldn't proceed."));
4000                                 break;
4001                         }
4002                         string texrow = convert<string>(row);
4003
4004                         command = subst(command, "$$n", texrow);
4005                         command = subst(command, "$$f", fulltexname);
4006                         command = subst(command, "$$t", texname);
4007                         command = subst(command, "$$o", outname);
4008
4009                         PathChanger p(path);
4010                         Systemcall one;
4011                         one.startscript(Systemcall::DontWait, command);
4012                         break;
4013                 }
4014
4015                 case LFUN_SPELLING_CONTINUOUSLY:
4016                         lyxrc.spellcheck_continuously = !lyxrc.spellcheck_continuously;
4017                         dr.screenUpdate(Update::Force | Update::FitCursor);
4018                         break;
4019
4020                 default:
4021                         // The LFUN must be for one of BufferView, Buffer or Cursor;
4022                         // let's try that:
4023                         dispatchToBufferView(cmd, dr);
4024                         break;
4025         }
4026
4027         // Part of automatic menu appearance feature.
4028         if (isFullScreen()) {
4029                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
4030                         menuBar()->hide();
4031         }
4032
4033         // Need to update bv because many LFUNs here might have destroyed it
4034         bv = currentBufferView();
4035
4036         // Clear non-empty selections
4037         // (e.g. from a "char-forward-select" followed by "char-backward-select")
4038         if (bv) {
4039                 Cursor & cur = bv->cursor();
4040                 if ((cur.selection() && cur.selBegin() == cur.selEnd())) {
4041                         cur.clearSelection();
4042                 }
4043         }
4044 }
4045
4046
4047 bool GuiView::lfunUiToggle(string const & ui_component)
4048 {
4049         if (ui_component == "scrollbar") {
4050                 // hide() is of no help
4051                 if (d.current_work_area_->verticalScrollBarPolicy() ==
4052                         Qt::ScrollBarAlwaysOff)
4053
4054                         d.current_work_area_->setVerticalScrollBarPolicy(
4055                                 Qt::ScrollBarAsNeeded);
4056                 else
4057                         d.current_work_area_->setVerticalScrollBarPolicy(
4058                                 Qt::ScrollBarAlwaysOff);
4059         } else if (ui_component == "statusbar") {
4060                 statusBar()->setVisible(!statusBar()->isVisible());
4061         } else if (ui_component == "menubar") {
4062                 menuBar()->setVisible(!menuBar()->isVisible());
4063         } else
4064         if (ui_component == "frame") {
4065                 int l, t, r, b;
4066                 getContentsMargins(&l, &t, &r, &b);
4067                 //are the frames in default state?
4068                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
4069                 if (l == 0) {
4070                         setContentsMargins(-2, -2, -2, -2);
4071                 } else {
4072                         setContentsMargins(0, 0, 0, 0);
4073                 }
4074         } else
4075         if (ui_component == "fullscreen") {
4076                 toggleFullScreen();
4077         } else
4078                 return false;
4079         return true;
4080 }
4081
4082
4083 void GuiView::toggleFullScreen()
4084 {
4085         if (isFullScreen()) {
4086                 for (int i = 0; i != d.splitter_->count(); ++i)
4087                         d.tabWorkArea(i)->setFullScreen(false);
4088                 setContentsMargins(0, 0, 0, 0);
4089                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4090                 restoreLayout();
4091                 menuBar()->show();
4092                 statusBar()->show();
4093         } else {
4094                 // bug 5274
4095                 hideDialogs("prefs", 0);
4096                 for (int i = 0; i != d.splitter_->count(); ++i)
4097                         d.tabWorkArea(i)->setFullScreen(true);
4098                 setContentsMargins(-2, -2, -2, -2);
4099                 saveLayout();
4100                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4101                 if (lyxrc.full_screen_statusbar)
4102                         statusBar()->hide();
4103                 if (lyxrc.full_screen_menubar)
4104                         menuBar()->hide();
4105                 if (lyxrc.full_screen_toolbars) {
4106                         ToolbarMap::iterator end = d.toolbars_.end();
4107                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
4108                                 it->second->hide();
4109                 }
4110         }
4111
4112         // give dialogs like the TOC a chance to adapt
4113         updateDialogs();
4114 }
4115
4116
4117 Buffer const * GuiView::updateInset(Inset const * inset)
4118 {
4119         if (!inset)
4120                 return 0;
4121
4122         Buffer const * inset_buffer = &(inset->buffer());
4123
4124         for (int i = 0; i != d.splitter_->count(); ++i) {
4125                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
4126                 if (!wa)
4127                         continue;
4128                 Buffer const * buffer = &(wa->bufferView().buffer());
4129                 if (inset_buffer == buffer)
4130                         wa->scheduleRedraw();
4131         }
4132         return inset_buffer;
4133 }
4134
4135
4136 void GuiView::restartCursor()
4137 {
4138         /* When we move around, or type, it's nice to be able to see
4139          * the cursor immediately after the keypress.
4140          */
4141         if (d.current_work_area_)
4142                 d.current_work_area_->startBlinkingCursor();
4143
4144         // Take this occasion to update the other GUI elements.
4145         updateDialogs();
4146         updateStatusBar();
4147 }
4148
4149
4150 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
4151 {
4152         if (d.current_work_area_)
4153                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
4154 }
4155
4156 namespace {
4157
4158 // This list should be kept in sync with the list of insets in
4159 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
4160 // dialog should have the same name as the inset.
4161 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
4162 // docs in LyXAction.cpp.
4163
4164 char const * const dialognames[] = {
4165
4166 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
4167 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
4168 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
4169 "href", "include", "index", "index_print", "info", "listings", "label", "line",
4170 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
4171 "nomencl_print", "note", "paragraph", "phantom", "prefs", "ref",
4172 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
4173 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
4174
4175 char const * const * const end_dialognames =
4176         dialognames + (sizeof(dialognames) / sizeof(char *));
4177
4178 class cmpCStr {
4179 public:
4180         cmpCStr(char const * name) : name_(name) {}
4181         bool operator()(char const * other) {
4182                 return strcmp(other, name_) == 0;
4183         }
4184 private:
4185         char const * name_;
4186 };
4187
4188
4189 bool isValidName(string const & name)
4190 {
4191         return find_if(dialognames, end_dialognames,
4192                                 cmpCStr(name.c_str())) != end_dialognames;
4193 }
4194
4195 } // namespace anon
4196
4197
4198 void GuiView::resetDialogs()
4199 {
4200         // Make sure that no LFUN uses any GuiView.
4201         guiApp->setCurrentView(0);
4202         saveLayout();
4203         saveUISettings();
4204         menuBar()->clear();
4205         constructToolbars();
4206         guiApp->menus().fillMenuBar(menuBar(), this, false);
4207         d.layout_->updateContents(true);
4208         // Now update controls with current buffer.
4209         guiApp->setCurrentView(this);
4210         restoreLayout();
4211         restartCursor();
4212 }
4213
4214
4215 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
4216 {
4217         if (!isValidName(name))
4218                 return 0;
4219
4220         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
4221
4222         if (it != d.dialogs_.end()) {
4223                 if (hide_it)
4224                         it->second->hideView();
4225                 return it->second.get();
4226         }
4227
4228         Dialog * dialog = build(name);
4229         d.dialogs_[name].reset(dialog);
4230         if (lyxrc.allow_geometry_session)
4231                 dialog->restoreSession();
4232         if (hide_it)
4233                 dialog->hideView();
4234         return dialog;
4235 }
4236
4237
4238 void GuiView::showDialog(string const & name, string const & data,
4239         Inset * inset)
4240 {
4241         triggerShowDialog(toqstr(name), toqstr(data), inset);
4242 }
4243
4244
4245 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
4246         Inset * inset)
4247 {
4248         if (d.in_show_)
4249                 return;
4250
4251         const string name = fromqstr(qname);
4252         const string data = fromqstr(qdata);
4253
4254         d.in_show_ = true;
4255         try {
4256                 Dialog * dialog = findOrBuild(name, false);
4257                 if (dialog) {
4258                         bool const visible = dialog->isVisibleView();
4259                         dialog->showData(data);
4260                         if (inset && currentBufferView())
4261                                 currentBufferView()->editInset(name, inset);
4262                         // We only set the focus to the new dialog if it was not yet
4263                         // visible in order not to change the existing previous behaviour
4264                         if (visible) {
4265                                 // activateWindow is needed for floating dockviews
4266                                 dialog->asQWidget()->raise();
4267                                 dialog->asQWidget()->activateWindow();
4268                                 dialog->asQWidget()->setFocus();
4269                         }
4270                 }
4271         }
4272         catch (ExceptionMessage const & ex) {
4273                 d.in_show_ = false;
4274                 throw ex;
4275         }
4276         d.in_show_ = false;
4277 }
4278
4279
4280 bool GuiView::isDialogVisible(string const & name) const
4281 {
4282         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4283         if (it == d.dialogs_.end())
4284                 return false;
4285         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
4286 }
4287
4288
4289 void GuiView::hideDialog(string const & name, Inset * inset)
4290 {
4291         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4292         if (it == d.dialogs_.end())
4293                 return;
4294
4295         if (inset) {
4296                 if (!currentBufferView())
4297                         return;
4298                 if (inset != currentBufferView()->editedInset(name))
4299                         return;
4300         }
4301
4302         Dialog * const dialog = it->second.get();
4303         if (dialog->isVisibleView())
4304                 dialog->hideView();
4305         if (currentBufferView())
4306                 currentBufferView()->editInset(name, 0);
4307 }
4308
4309
4310 void GuiView::disconnectDialog(string const & name)
4311 {
4312         if (!isValidName(name))
4313                 return;
4314         if (currentBufferView())
4315                 currentBufferView()->editInset(name, 0);
4316 }
4317
4318
4319 void GuiView::hideAll() const
4320 {
4321         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4322         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4323
4324         for(; it != end; ++it)
4325                 it->second->hideView();
4326 }
4327
4328
4329 void GuiView::updateDialogs()
4330 {
4331         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4332         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4333
4334         for(; it != end; ++it) {
4335                 Dialog * dialog = it->second.get();
4336                 if (dialog) {
4337                         if (dialog->needBufferOpen() && !documentBufferView())
4338                                 hideDialog(fromqstr(dialog->name()), 0);
4339                         else if (dialog->isVisibleView())
4340                                 dialog->checkStatus();
4341                 }
4342         }
4343         updateToolbars();
4344         updateLayoutList();
4345 }
4346
4347 Dialog * createDialog(GuiView & lv, string const & name);
4348
4349 // will be replaced by a proper factory...
4350 Dialog * createGuiAbout(GuiView & lv);
4351 Dialog * createGuiBibtex(GuiView & lv);
4352 Dialog * createGuiChanges(GuiView & lv);
4353 Dialog * createGuiCharacter(GuiView & lv);
4354 Dialog * createGuiCitation(GuiView & lv);
4355 Dialog * createGuiCompare(GuiView & lv);
4356 Dialog * createGuiCompareHistory(GuiView & lv);
4357 Dialog * createGuiDelimiter(GuiView & lv);
4358 Dialog * createGuiDocument(GuiView & lv);
4359 Dialog * createGuiErrorList(GuiView & lv);
4360 Dialog * createGuiExternal(GuiView & lv);
4361 Dialog * createGuiGraphics(GuiView & lv);
4362 Dialog * createGuiInclude(GuiView & lv);
4363 Dialog * createGuiIndex(GuiView & lv);
4364 Dialog * createGuiListings(GuiView & lv);
4365 Dialog * createGuiLog(GuiView & lv);
4366 Dialog * createGuiMathMatrix(GuiView & lv);
4367 Dialog * createGuiNote(GuiView & lv);
4368 Dialog * createGuiParagraph(GuiView & lv);
4369 Dialog * createGuiPhantom(GuiView & lv);
4370 Dialog * createGuiPreferences(GuiView & lv);
4371 Dialog * createGuiPrint(GuiView & lv);
4372 Dialog * createGuiPrintindex(GuiView & lv);
4373 Dialog * createGuiRef(GuiView & lv);
4374 Dialog * createGuiSearch(GuiView & lv);
4375 Dialog * createGuiSearchAdv(GuiView & lv);
4376 Dialog * createGuiSendTo(GuiView & lv);
4377 Dialog * createGuiShowFile(GuiView & lv);
4378 Dialog * createGuiSpellchecker(GuiView & lv);
4379 Dialog * createGuiSymbols(GuiView & lv);
4380 Dialog * createGuiTabularCreate(GuiView & lv);
4381 Dialog * createGuiTexInfo(GuiView & lv);
4382 Dialog * createGuiToc(GuiView & lv);
4383 Dialog * createGuiThesaurus(GuiView & lv);
4384 Dialog * createGuiViewSource(GuiView & lv);
4385 Dialog * createGuiWrap(GuiView & lv);
4386 Dialog * createGuiProgressView(GuiView & lv);
4387
4388
4389
4390 Dialog * GuiView::build(string const & name)
4391 {
4392         LASSERT(isValidName(name), return 0);
4393
4394         Dialog * dialog = createDialog(*this, name);
4395         if (dialog)
4396                 return dialog;
4397
4398         if (name == "aboutlyx")
4399                 return createGuiAbout(*this);
4400         if (name == "bibtex")
4401                 return createGuiBibtex(*this);
4402         if (name == "changes")
4403                 return createGuiChanges(*this);
4404         if (name == "character")
4405                 return createGuiCharacter(*this);
4406         if (name == "citation")
4407                 return createGuiCitation(*this);
4408         if (name == "compare")
4409                 return createGuiCompare(*this);
4410         if (name == "comparehistory")
4411                 return createGuiCompareHistory(*this);
4412         if (name == "document")
4413                 return createGuiDocument(*this);
4414         if (name == "errorlist")
4415                 return createGuiErrorList(*this);
4416         if (name == "external")
4417                 return createGuiExternal(*this);
4418         if (name == "file")
4419                 return createGuiShowFile(*this);
4420         if (name == "findreplace")
4421                 return createGuiSearch(*this);
4422         if (name == "findreplaceadv")
4423                 return createGuiSearchAdv(*this);
4424         if (name == "graphics")
4425                 return createGuiGraphics(*this);
4426         if (name == "include")
4427                 return createGuiInclude(*this);
4428         if (name == "index")
4429                 return createGuiIndex(*this);
4430         if (name == "index_print")
4431                 return createGuiPrintindex(*this);
4432         if (name == "listings")
4433                 return createGuiListings(*this);
4434         if (name == "log")
4435                 return createGuiLog(*this);
4436         if (name == "mathdelimiter")
4437                 return createGuiDelimiter(*this);
4438         if (name == "mathmatrix")
4439                 return createGuiMathMatrix(*this);
4440         if (name == "note")
4441                 return createGuiNote(*this);
4442         if (name == "paragraph")
4443                 return createGuiParagraph(*this);
4444         if (name == "phantom")
4445                 return createGuiPhantom(*this);
4446         if (name == "prefs")
4447                 return createGuiPreferences(*this);
4448         if (name == "ref")
4449                 return createGuiRef(*this);
4450         if (name == "sendto")
4451                 return createGuiSendTo(*this);
4452         if (name == "spellchecker")
4453                 return createGuiSpellchecker(*this);
4454         if (name == "symbols")
4455                 return createGuiSymbols(*this);
4456         if (name == "tabularcreate")
4457                 return createGuiTabularCreate(*this);
4458         if (name == "texinfo")
4459                 return createGuiTexInfo(*this);
4460         if (name == "thesaurus")
4461                 return createGuiThesaurus(*this);
4462         if (name == "toc")
4463                 return createGuiToc(*this);
4464         if (name == "view-source")
4465                 return createGuiViewSource(*this);
4466         if (name == "wrap")
4467                 return createGuiWrap(*this);
4468         if (name == "progress")
4469                 return createGuiProgressView(*this);
4470
4471         return 0;
4472 }
4473
4474
4475 } // namespace frontend
4476 } // namespace lyx
4477
4478 #include "moc_GuiView.cpp"