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 "DispatchResult.h"
  19 #include "FileDialog.h"
  20 #include "FontLoader.h"
  21 #include "GuiApplication.h"
  22 #include "GuiCommandBuffer.h"
  23 #include "GuiCompleter.h"
  24 #include "GuiKeySymbol.h"
  25 #include "GuiToc.h"
  26 #include "GuiToolbar.h"
  27 #include "GuiWorkArea.h"
  28 #include "GuiProgress.h"
  29 #include "LayoutBox.h"
  30 #include "Menus.h"
  31 #include "TocModel.h"
  32
  33 #include "qt_helpers.h"
  34 #include "support/filetools.h"
  35
  36 #include "frontends/alert.h"
  37 #include "frontends/KeySymbol.h"
  38
  39 #include "buffer_funcs.h"
  40 #include "Buffer.h"
  41 #include "BufferList.h"
  42 #include "BufferParams.h"
  43 #include "BufferView.h"
  44 #include "Compare.h"
  45 #include "Converter.h"
  46 #include "Cursor.h"
  47 #include "CutAndPaste.h"
  48 #include "Encoding.h"
  49 #include "ErrorList.h"
  50 #include "Format.h"
  51 #include "FuncStatus.h"
  52 #include "FuncRequest.h"
  53 #include "Intl.h"
  54 #include "Layout.h"
  55 #include "Lexer.h"
  56 #include "LyXAction.h"
  57 #include "LyX.h"
  58 #include "LyXRC.h"
  59 #include "LyXVC.h"
  60 #include "Paragraph.h"
  61 #include "SpellChecker.h"
  62 #include "Session.h"
  63 #include "TexRow.h"
  64 #include "TextClass.h"
  65 #include "Text.h"
  66 #include "Toolbars.h"
  67 #include "version.h"
  68
  69 #include "support/convert.h"
  70 #include "support/debug.h"
  71 #include "support/ExceptionMessage.h"
  72 #include "support/FileName.h"
  73 #include "support/filetools.h"
  74 #include "support/gettext.h"
  75 #include "support/filetools.h"
  76 #include "support/ForkedCalls.h"
  77 #include "support/lassert.h"
  78 #include "support/lstrings.h"
  79 #include "support/os.h"
  80 #include "support/Package.h"
  81 #include "support/PathChanger.h"
  82 #include "support/Systemcall.h"
  83 #include "support/Timeout.h"
  84 #include "support/ProgressInterface.h"
  85
  86 #include <QAction>
  87 #include <QApplication>
  88 #include <QCloseEvent>
  89 #include <QDebug>
  90 #include <QDesktopWidget>
  91 #include <QDragEnterEvent>
  92 #include <QDropEvent>
  93 #include <QFuture>
  94 #include <QFutureWatcher>
  95 #include <QLabel>
  96 #include <QList>
  97 #include <QMenu>
  98 #include <QMenuBar>
  99 #include <QMimeData>
 100 #include <QMovie>
 101 #include <QPainter>
 102 #include <QPixmap>
 103 #include <QPixmapCache>
 104 #include <QPoint>
 105 #include <QPushButton>
 106 #include <QScrollBar>
 107 #include <QSettings>
 108 #include <QShowEvent>
 109 #include <QSplitter>
 110 #include <QStackedWidget>
 111 #include <QStatusBar>
 112 #include <QSvgRenderer>
 113 #include <QtConcurrentRun>
 114 #include <QTime>
 115 #include <QTimer>
 116 #include <QToolBar>
 117 #include <QUrl>
 118
 119
 120
 121 // sync with GuiAlert.cpp
 122 #define EXPORT_in_THREAD 1
 123
 124
 125 #include "support/bind.h"
 126
 127 #include <sstream>
 128
 129 #ifdef HAVE_SYS_TIME_H
 130 # include <sys/time.h>
 131 #endif
 132 #ifdef HAVE_UNISTD_H
 133 # include <unistd.h>
 134 #endif
 135
 136
 137 using namespace std;
 138 using namespace lyx::support;
 139
 140 namespace lyx {
 141
 142 using support::addExtension;
 143 using support::changeExtension;
 144 using support::removeExtension;
 145
 146 namespace frontend {
 147
 148 namespace {
 149
 150 class BackgroundWidget : public QWidget
 151 {
 152 public:
 153         BackgroundWidget(int width, int height)
 154                 : width_(width), height_(height)
 155         {
 156                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 157                 if (!lyxrc.show_banner)
 158                         return;
 159                 /// The text to be written on top of the pixmap
 160                 QString const text = lyx_version ?
 161                         qt_("version ") + lyx_version : qt_("unknown version");
 162 #if QT_VERSION >= 0x050000
 163                 QString imagedir = "images/";
 164                 FileName fname = imageLibFileSearch(imagedir, "banner", "svgz");
 165                 QSvgRenderer svgRenderer(toqstr(fname.absFileName()));
 166                 if (svgRenderer.isValid()) {
 167                         splash_ = QPixmap(splashSize());
 168                         QPainter painter(&splash_);
 169                         svgRenderer.render(&painter);
 170                         splash_.setDevicePixelRatio(pixelRatio());
 171                 } else {
 172                         splash_ = getPixmap("images/", "banner", "png");
 173                 }
 174 #else
 175                 splash_ = getPixmap("images/", "banner", "svgz,png");
 176 #endif
 177
 178                 QPainter pain(&splash_);
 179                 pain.setPen(QColor(0, 0, 0));
 180                 qreal const fsize = fontSize();
 181                 QPointF const position = textPosition();
 182                 LYXERR(Debug::GUI,
 183                         "widget pixel ratio: " << pixelRatio() <<
 184                         " splash pixel ratio: " << splashPixelRatio() <<
 185                         " version text size,position: " << fsize << "@" << position.x() << "+" << position.y());
 186                 QFont font;
 187                 // The font used to display the version info
 188                 font.setStyleHint(QFont::SansSerif);
 189                 font.setWeight(QFont::Bold);
 190                 font.setPointSizeF(fsize);
 191                 pain.setFont(font);
 192                 pain.drawText(position, text);
 193                 setFocusPolicy(Qt::StrongFocus);
 194         }
 195
 196         void paintEvent(QPaintEvent *)
 197         {
 198                 int const w = width_;
 199                 int const h = height_;
 200                 int const x = (width() - w) / 2;
 201                 int const y = (height() - h) / 2;
 202                 LYXERR(Debug::GUI,
 203                         "widget pixel ratio: " << pixelRatio() <<
 204                         " splash pixel ratio: " << splashPixelRatio() <<
 205                         " paint pixmap: " << w << "x" << h << "@" << x << "+" << y);
 206                 QPainter pain(this);
 207                 pain.drawPixmap(x, y, w, h, splash_);
 208         }
 209
 210         void keyPressEvent(QKeyEvent * ev)
 211         {
 212                 KeySymbol sym;
 213                 setKeySymbol(&sym, ev);
 214                 if (sym.isOK()) {
 215                         guiApp->processKeySym(sym, q_key_state(ev->modifiers()));
 216                         ev->accept();
 217                 } else {
 218                         ev->ignore();
 219                 }
 220         }
 221
 222 private:
 223         QPixmap splash_;
 224         int const width_;
 225         int const height_;
 226
 227         /// Current ratio between physical pixels and device-independent pixels
 228         double pixelRatio() const {
 229 #if QT_VERSION >= 0x050000
 230                 return qt_scale_factor * devicePixelRatio();
 231 #else
 232                 return 1.0;
 233 #endif
 234         }
 235
 236         qreal fontSize() const {
 237                 return toqstr(lyxrc.font_sizes[FONT_SIZE_NORMAL]).toDouble();
 238         }
 239
 240         QPointF textPosition() const {
 241                 return QPointF(width_/2 - 18, height_/2 + 45);
 242         }
 243
 244         QSize splashSize() const {
 245                 return QSize(
 246                         static_cast<unsigned int>(width_ * pixelRatio()),
 247                         static_cast<unsigned int>(height_ * pixelRatio()));
 248         }
 249
 250         /// Ratio between physical pixels and device-independent pixels of splash image
 251         double splashPixelRatio() const {
 252 #if QT_VERSION >= 0x050000
 253                 return splash_.devicePixelRatio();
 254 #else
 255                 return 1.0;
 256 #endif
 257         }
 258 };
 259
 260
 261 /// Toolbar store providing access to individual toolbars by name.
 262 typedef map<string, GuiToolbar *> ToolbarMap;
 263
 264 typedef shared_ptr<Dialog> DialogPtr;
 265
 266 } // namespace anon
 267
 268
 269 class GuiView::GuiViewPrivate
 270 {
 271         /// noncopyable
 272         GuiViewPrivate(GuiViewPrivate const &);
 273         void operator=(GuiViewPrivate const &);
 274 public:
 275         GuiViewPrivate(GuiView * gv)
 276                 : gv_(gv), current_work_area_(0), current_main_work_area_(0),
 277                 layout_(0), autosave_timeout_(5000),
 278                 in_show_(false)
 279         {
 280                 // hardcode here the platform specific icon size
 281                 smallIconSize = 16;  // scaling problems
 282                 normalIconSize = 20; // ok, default if iconsize.png is missing
 283                 bigIconSize = 26;       // better for some math icons
 284                 hugeIconSize = 32;      // better for hires displays
 285                 giantIconSize = 48;
 286
 287                 // if it exists, use width of iconsize.png as normal size
 288                 QString const dir = toqstr(addPath("images", lyxrc.icon_set));
 289                 FileName const fn = lyx::libFileSearch(dir, "iconsize.png");
 290                 if (!fn.empty()) {
 291                         QImage image(toqstr(fn.absFileName()));
 292                         if (image.width() < int(smallIconSize))
 293                                 normalIconSize = smallIconSize;
 294                         else if (image.width() > int(giantIconSize))
 295                                 normalIconSize = giantIconSize;
 296                         else
 297                                 normalIconSize = image.width();
 298                 }
 299
 300                 splitter_ = new QSplitter;
 301                 bg_widget_ = new BackgroundWidget(400, 250);
 302                 stack_widget_ = new QStackedWidget;
 303                 stack_widget_->addWidget(bg_widget_);
 304                 stack_widget_->addWidget(splitter_);
 305                 setBackground();
 306
 307                 // TODO cleanup, remove the singleton, handle multiple Windows?
 308                 progress_ = ProgressInterface::instance();
 309                 if (!dynamic_cast<GuiProgress*>(progress_)) {
 310                         progress_ = new GuiProgress;  // TODO who deletes it
 311                         ProgressInterface::setInstance(progress_);
 312                 }
 313                 QObject::connect(
 314                                 dynamic_cast<GuiProgress*>(progress_),
 315                                 SIGNAL(updateStatusBarMessage(QString const&)),
 316                                 gv, SLOT(updateStatusBarMessage(QString const&)));
 317                 QObject::connect(
 318                                 dynamic_cast<GuiProgress*>(progress_),
 319                                 SIGNAL(clearMessageText()),
 320                                 gv, SLOT(clearMessageText()));
 321         }
 322
 323         ~GuiViewPrivate()
 324         {
 325                 delete splitter_;
 326                 delete bg_widget_;
 327                 delete stack_widget_;
 328         }
 329
 330         void setBackground()
 331         {
 332                 stack_widget_->setCurrentWidget(bg_widget_);
 333                 bg_widget_->setUpdatesEnabled(true);
 334                 bg_widget_->setFocus();
 335         }
 336
 337         int tabWorkAreaCount()
 338         {
 339                 return splitter_->count();
 340         }
 341
 342         TabWorkArea * tabWorkArea(int i)
 343         {
 344                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 345         }
 346
 347         TabWorkArea * currentTabWorkArea()
 348         {
 349                 int areas = tabWorkAreaCount();
 350                 if (areas == 1)
 351                         // The first TabWorkArea is always the first one, if any.
 352                         return tabWorkArea(0);
 353
 354                 for (int i = 0; i != areas;  ++i) {
 355                         TabWorkArea * twa = tabWorkArea(i);
 356                         if (current_main_work_area_ == twa->currentWorkArea())
 357                                 return twa;
 358                 }
 359
 360                 // None has the focus so we just take the first one.
 361                 return tabWorkArea(0);
 362         }
 363
 364         int countWorkAreasOf(Buffer & buf)
 365         {
 366                 int areas = tabWorkAreaCount();
 367                 int count = 0;
 368                 for (int i = 0; i != areas;  ++i) {
 369                         TabWorkArea * twa = tabWorkArea(i);
 370                         if (twa->workArea(buf))
 371                                 ++count;
 372                 }
 373                 return count;
 374         }
 375
 376         void setPreviewFuture(QFuture<Buffer::ExportStatus> const & f)
 377         {
 378                 if (processing_thread_watcher_.isRunning()) {
 379                         // we prefer to cancel this preview in order to keep a snappy
 380                         // interface.
 381                         return;
 382                 }
 383                 processing_thread_watcher_.setFuture(f);
 384         }
 385
 386         QSize iconSize(docstring const & icon_size)
 387         {
 388                 unsigned int size;
 389                 if (icon_size == "small")
 390                         size = smallIconSize;
 391                 else if (icon_size == "normal")
 392                         size = normalIconSize;
 393                 else if (icon_size == "big")
 394                         size = bigIconSize;
 395                 else if (icon_size == "huge")
 396                         size = hugeIconSize;
 397                 else if (icon_size == "giant")
 398                         size = giantIconSize;
 399                 else
 400                         size = icon_size.empty() ? normalIconSize : convert<int>(icon_size);
 401
 402                 if (size < smallIconSize)
 403                         size = smallIconSize;
 404
 405                 return QSize(size, size);
 406         }
 407
 408         QSize iconSize(QString const & icon_size)
 409         {
 410                 return iconSize(qstring_to_ucs4(icon_size));
 411         }
 412
 413         string & iconSize(QSize const & qsize)
 414         {
 415                 LATTEST(qsize.width() == qsize.height());
 416
 417                 static string icon_size;
 418
 419                 unsigned int size = qsize.width();
 420
 421                 if (size < smallIconSize)
 422                         size = smallIconSize;
 423
 424                 if (size == smallIconSize)
 425                         icon_size = "small";
 426                 else if (size == normalIconSize)
 427                         icon_size = "normal";
 428                 else if (size == bigIconSize)
 429                         icon_size = "big";
 430                 else if (size == hugeIconSize)
 431                         icon_size = "huge";
 432                 else if (size == giantIconSize)
 433                         icon_size = "giant";
 434                 else
 435                         icon_size = convert<string>(size);
 436
 437                 return icon_size;
 438         }
 439
 440 public:
 441         GuiView * gv_;
 442         GuiWorkArea * current_work_area_;
 443         GuiWorkArea * current_main_work_area_;
 444         QSplitter * splitter_;
 445         QStackedWidget * stack_widget_;
 446         BackgroundWidget * bg_widget_;
 447         /// view's toolbars
 448         ToolbarMap toolbars_;
 449         ProgressInterface* progress_;
 450         /// The main layout box.
 451         /**
 452          * \warning Don't Delete! The layout box is actually owned by
 453          * whichever toolbar contains it. All the GuiView class needs is a
 454          * means of accessing it.
 455          *
 456          * FIXME: replace that with a proper model so that we are not limited
 457          * to only one dialog.
 458          */
 459         LayoutBox * layout_;
 460
 461         ///
 462         map<string, DialogPtr> dialogs_;
 463
 464         unsigned int smallIconSize;
 465         unsigned int normalIconSize;
 466         unsigned int bigIconSize;
 467         unsigned int hugeIconSize;
 468         unsigned int giantIconSize;
 469         ///
 470         QTimer statusbar_timer_;
 471         /// auto-saving of buffers
 472         Timeout autosave_timeout_;
 473         /// flag against a race condition due to multiclicks, see bug #1119
 474         bool in_show_;
 475
 476         ///
 477         TocModels toc_models_;
 478
 479         ///
 480         QFutureWatcher<docstring> autosave_watcher_;
 481         QFutureWatcher<Buffer::ExportStatus> processing_thread_watcher_;
 482         ///
 483         string last_export_format;
 484         string processing_format;
 485
 486         static QSet<Buffer const *> busyBuffers;
 487         static Buffer::ExportStatus previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 488         static Buffer::ExportStatus exportAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 489         static Buffer::ExportStatus compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 490         static docstring autosaveAndDestroy(Buffer const * orig, Buffer * buffer);
 491
 492         template<class T>
 493         static Buffer::ExportStatus runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format);
 494
 495         // TODO syncFunc/previewFunc: use bind
 496         bool asyncBufferProcessing(string const & argument,
 497                                    Buffer const * used_buffer,
 498                                    docstring const & msg,
 499                                    Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
 500                                    Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
 501                                    Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const);
 502
 503         QVector<GuiWorkArea*> guiWorkAreas();
 504 };
 505
 506 QSet<Buffer const *> GuiView::GuiViewPrivate::busyBuffers;
 507
 508
 509 GuiView::GuiView(int id)
 510         : d(*new GuiViewPrivate(this)), id_(id), closing_(false), busy_(0),
 511           command_execute_(false), minibuffer_focus_(false)
 512 {
 513         connect(this, SIGNAL(bufferViewChanged()),
 514                 this, SLOT(onBufferViewChanged()));
 515
 516         // GuiToolbars *must* be initialised before the menu bar.
 517         setIconSize(QSize(d.normalIconSize, d.normalIconSize)); // at least on Mac the default is 32 otherwise, which is huge
 518         constructToolbars();
 519
 520         // set ourself as the current view. This is needed for the menu bar
 521         // filling, at least for the static special menu item on Mac. Otherwise
 522         // they are greyed out.
 523         guiApp->setCurrentView(this);
 524
 525         // Fill up the menu bar.
 526         guiApp->menus().fillMenuBar(menuBar(), this, true);
 527
 528         setCentralWidget(d.stack_widget_);
 529
 530         // Start autosave timer
 531         if (lyxrc.autosave) {
 532                 d.autosave_timeout_.timeout.connect(bind(&GuiView::autoSave, this));
 533                 d.autosave_timeout_.setTimeout(lyxrc.autosave * 1000);
 534                 d.autosave_timeout_.start();
 535         }
 536         connect(&d.statusbar_timer_, SIGNAL(timeout()),
 537                 this, SLOT(clearMessage()));
 538
 539         // We don't want to keep the window in memory if it is closed.
 540         setAttribute(Qt::WA_DeleteOnClose, true);
 541
 542 #if !(defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)) && !defined(Q_OS_MAC)
 543         // QIcon::fromTheme was introduced in Qt 4.6
 544 #if (QT_VERSION >= 0x040600)
 545         // assign an icon to main form. We do not do it under Qt/Win or Qt/Mac,
 546         // since the icon is provided in the application bundle. We use a themed
 547         // version when available and use the bundled one as fallback.
 548         setWindowIcon(QIcon::fromTheme("lyx", getPixmap("images/", "lyx", "svg,png")));
 549 #else
 550         setWindowIcon(getPixmap("images/", "lyx", "svg,png"));
 551 #endif
 552
 553 #endif
 554         resetWindowTitle();
 555
 556         // use tabbed dock area for multiple docks
 557         // (such as "source" and "messages")
 558         setDockOptions(QMainWindow::ForceTabbedDocks);
 559
 560         // For Drag&Drop.
 561         setAcceptDrops(true);
 562
 563         // add busy indicator to statusbar
 564         QLabel * busylabel = new QLabel(statusBar());
 565         statusBar()->addPermanentWidget(busylabel);
 566         search_mode mode = theGuiApp()->imageSearchMode();
 567         QString fn = toqstr(lyx::libFileSearch("images", "busy", "gif", mode).absFileName());
 568         QMovie * busyanim = new QMovie(fn, QByteArray(), busylabel);
 569         busylabel->setMovie(busyanim);
 570         busyanim->start();
 571         busylabel->hide();
 572
 573         connect(&d.processing_thread_watcher_, SIGNAL(started()),
 574                 busylabel, SLOT(show()));
 575         connect(&d.processing_thread_watcher_, SIGNAL(finished()),
 576                 busylabel, SLOT(hide()));
 577
 578         QFontMetrics const fm(statusBar()->fontMetrics());
 579         int const roheight = max(int(d.normalIconSize), fm.height());
 580         QSize const rosize(roheight, roheight);
 581         QPixmap readonly = QIcon(getPixmap("images/", "emblem-readonly", "svgz,png")).pixmap(rosize);
 582         read_only_ = new QLabel(statusBar());
 583         read_only_->setPixmap(readonly);
 584         read_only_->setScaledContents(true);
 585         read_only_->setAlignment(Qt::AlignCenter);
 586         read_only_->hide();
 587         statusBar()->addPermanentWidget(read_only_);
 588
 589         version_control_ = new QLabel(statusBar());
 590         version_control_->setAlignment(Qt::AlignCenter);
 591         version_control_->setFrameStyle(QFrame::StyledPanel);
 592         version_control_->hide();
 593         statusBar()->addPermanentWidget(version_control_);
 594
 595         statusBar()->setSizeGripEnabled(true);
 596         updateStatusBar();
 597
 598         connect(&d.autosave_watcher_, SIGNAL(finished()), this,
 599                 SLOT(autoSaveThreadFinished()));
 600
 601         connect(&d.processing_thread_watcher_, SIGNAL(started()), this,
 602                 SLOT(processingThreadStarted()));
 603         connect(&d.processing_thread_watcher_, SIGNAL(finished()), this,
 604                 SLOT(processingThreadFinished()));
 605
 606         connect(this, SIGNAL(triggerShowDialog(QString const &, QString const &, Inset *)),
 607                 SLOT(doShowDialog(QString const &, QString const &, Inset *)));
 608
 609         // set custom application bars context menu, e.g. tool bar and menu bar
 610         setContextMenuPolicy(Qt::CustomContextMenu);
 611         connect(this, SIGNAL(customContextMenuRequested(const QPoint &)),
 612                 SLOT(toolBarPopup(const QPoint &)));
 613
 614         // Forbid too small unresizable window because it can happen
 615         // with some window manager under X11.
 616         setMinimumSize(300, 200);
 617
 618         if (lyxrc.allow_geometry_session) {
 619                 // Now take care of session management.
 620                 if (restoreLayout())
 621                         return;
 622         }
 623
 624         // no session handling, default to a sane size.
 625         setGeometry(50, 50, 690, 510);
 626         initToolbars();
 627
 628         // clear session data if any.
 629         QSettings settings;
 630         settings.remove("views");
 631 }
 632
 633
 634 GuiView::~GuiView()
 635 {
 636         delete &d;
 637 }
 638
 639
 640 QVector<GuiWorkArea*> GuiView::GuiViewPrivate::guiWorkAreas()
 641 {
 642         QVector<GuiWorkArea*> areas;
 643         for (int i = 0; i < tabWorkAreaCount(); i++) {
 644                 TabWorkArea* ta = tabWorkArea(i);
 645                 for (int u = 0; u < ta->count(); u++) {
 646                         areas << ta->workArea(u);
 647                 }
 648         }
 649         return areas;
 650 }
 651
 652 static void handleExportStatus(GuiView * view, Buffer::ExportStatus status,
 653         string const & format)
 654 {
 655         docstring const fmt = theFormats().prettyName(format);
 656         docstring msg;
 657         switch (status) {
 658         case Buffer::ExportSuccess:
 659                 msg = bformat(_("Successful export to format: %1$s"), fmt);
 660                 break;
 661         case Buffer::ExportCancel:
 662                 msg = _("Document export cancelled.");
 663                 break;
 664         case Buffer::ExportError:
 665         case Buffer::ExportNoPathToFormat:
 666         case Buffer::ExportTexPathHasSpaces:
 667         case Buffer::ExportConverterError:
 668                 msg = bformat(_("Error while exporting format: %1$s"), fmt);
 669                 break;
 670         case Buffer::PreviewSuccess:
 671                 msg = bformat(_("Successful preview of format: %1$s"), fmt);
 672                 break;
 673         case Buffer::PreviewError:
 674                 msg = bformat(_("Error while previewing format: %1$s"), fmt);
 675                 break;
 676         }
 677         view->message(msg);
 678 }
 679
 680
 681 void GuiView::processingThreadStarted()
 682 {
 683 }
 684
 685
 686 void GuiView::processingThreadFinished()
 687 {
 688         QFutureWatcher<Buffer::ExportStatus> const * watcher =
 689                 static_cast<QFutureWatcher<Buffer::ExportStatus> const *>(sender());
 690
 691         Buffer::ExportStatus const status = watcher->result();
 692         handleExportStatus(this, status, d.processing_format);
 693
 694         updateToolbars();
 695         BufferView const * const bv = currentBufferView();
 696         if (bv && !bv->buffer().errorList("Export").empty()) {
 697                 errors("Export");
 698                 return;
 699         }
 700         errors(d.last_export_format);
 701 }
 702
 703
 704 void GuiView::autoSaveThreadFinished()
 705 {
 706         QFutureWatcher<docstring> const * watcher =
 707                 static_cast<QFutureWatcher<docstring> const *>(sender());
 708         message(watcher->result());
 709         updateToolbars();
 710 }
 711
 712
 713 void GuiView::saveLayout() const
 714 {
 715         QSettings settings;
 716         settings.beginGroup("views");
 717         settings.beginGroup(QString::number(id_));
 718 #if defined(Q_WS_X11) || defined(QPA_XCB)
 719         settings.setValue("pos", pos());
 720         settings.setValue("size", size());
 721 #else
 722         settings.setValue("geometry", saveGeometry());
 723 #endif
 724         settings.setValue("layout", saveState(0));
 725         settings.setValue("icon_size", toqstr(d.iconSize(iconSize())));
 726 }
 727
 728
 729 void GuiView::saveUISettings() const
 730 {
 731         // Save the toolbar private states
 732         ToolbarMap::iterator end = d.toolbars_.end();
 733         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
 734                 it->second->saveSession();
 735         // Now take care of all other dialogs
 736         map<string, DialogPtr>::const_iterator it = d.dialogs_.begin();
 737         for (; it!= d.dialogs_.end(); ++it)
 738                 it->second->saveSession();
 739 }
 740
 741
 742 bool GuiView::restoreLayout()
 743 {
 744         QSettings settings;
 745         settings.beginGroup("views");
 746         settings.beginGroup(QString::number(id_));
 747         QString const icon_key = "icon_size";
 748         if (!settings.contains(icon_key))
 749                 return false;
 750
 751         //code below is skipped when when ~/.config/LyX is (re)created
 752         setIconSize(d.iconSize(settings.value(icon_key).toString()));
 753
 754 #if defined(Q_WS_X11) || defined(QPA_XCB)
 755         QPoint pos = settings.value("pos", QPoint(50, 50)).toPoint();
 756         QSize size = settings.value("size", QSize(690, 510)).toSize();
 757         resize(size);
 758         move(pos);
 759 #else
 760         // Work-around for bug #6034: the window ends up in an undetermined
 761         // state when trying to restore a maximized window when it is
 762         // already maximized.
 763         if (!(windowState() & Qt::WindowMaximized))
 764                 if (!restoreGeometry(settings.value("geometry").toByteArray()))
 765                         setGeometry(50, 50, 690, 510);
 766 #endif
 767         // Make sure layout is correctly oriented.
 768         setLayoutDirection(qApp->layoutDirection());
 769
 770         // Allow the toc and view-source dock widget to be restored if needed.
 771         Dialog * dialog;
 772         if ((dialog = findOrBuild("toc", true)))
 773                 // see bug 5082. At least setup title and enabled state.
 774                 // Visibility will be adjusted by restoreState below.
 775                 dialog->prepareView();
 776         if ((dialog = findOrBuild("view-source", true)))
 777                 dialog->prepareView();
 778         if ((dialog = findOrBuild("progress", true)))
 779                 dialog->prepareView();
 780
 781         if (!restoreState(settings.value("layout").toByteArray(), 0))
 782                 initToolbars();
 783
 784         // init the toolbars that have not been restored
 785         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 786         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 787         for (; cit != end; ++cit) {
 788                 GuiToolbar * tb = toolbar(cit->name);
 789                 if (tb && !tb->isRestored())
 790                         initToolbar(cit->name);
 791         }
 792
 793         updateDialogs();
 794         return true;
 795 }
 796
 797
 798 GuiToolbar * GuiView::toolbar(string const & name)
 799 {
 800         ToolbarMap::iterator it = d.toolbars_.find(name);
 801         if (it != d.toolbars_.end())
 802                 return it->second;
 803
 804         LYXERR(Debug::GUI, "Toolbar::display: no toolbar named " << name);
 805         return 0;
 806 }
 807
 808
 809 void GuiView::constructToolbars()
 810 {
 811         ToolbarMap::iterator it = d.toolbars_.begin();
 812         for (; it != d.toolbars_.end(); ++it)
 813                 delete it->second;
 814         d.toolbars_.clear();
 815
 816         // I don't like doing this here, but the standard toolbar
 817         // destroys this object when it's destroyed itself (vfr)
 818         d.layout_ = new LayoutBox(*this);
 819         d.stack_widget_->addWidget(d.layout_);
 820         d.layout_->move(0,0);
 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                 d.toolbars_[cit->name] =  new GuiToolbar(*cit, *this);
 827 }
 828
 829
 830 void GuiView::initToolbars()
 831 {
 832         // extracts the toolbars from the backend
 833         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 834         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 835         for (; cit != end; ++cit)
 836                 initToolbar(cit->name);
 837 }
 838
 839
 840 void GuiView::initToolbar(string const & name)
 841 {
 842         GuiToolbar * tb = toolbar(name);
 843         if (!tb)
 844                 return;
 845         int const visibility = guiApp->toolbars().defaultVisibility(name);
 846         bool newline = !(visibility & Toolbars::SAMEROW);
 847         tb->setVisible(false);
 848         tb->setVisibility(visibility);
 849
 850         if (visibility & Toolbars::TOP) {
 851                 if (newline)
 852                         addToolBarBreak(Qt::TopToolBarArea);
 853                 addToolBar(Qt::TopToolBarArea, tb);
 854         }
 855
 856         if (visibility & Toolbars::BOTTOM) {
 857                 if (newline)
 858                         addToolBarBreak(Qt::BottomToolBarArea);
 859                 addToolBar(Qt::BottomToolBarArea, tb);
 860         }
 861
 862         if (visibility & Toolbars::LEFT) {
 863                 if (newline)
 864                         addToolBarBreak(Qt::LeftToolBarArea);
 865                 addToolBar(Qt::LeftToolBarArea, tb);
 866         }
 867
 868         if (visibility & Toolbars::RIGHT) {
 869                 if (newline)
 870                         addToolBarBreak(Qt::RightToolBarArea);
 871                 addToolBar(Qt::RightToolBarArea, tb);
 872         }
 873
 874         if (visibility & Toolbars::ON)
 875                 tb->setVisible(true);
 876 }
 877
 878
 879 TocModels & GuiView::tocModels()
 880 {
 881         return d.toc_models_;
 882 }
 883
 884
 885 void GuiView::setFocus()
 886 {
 887         LYXERR(Debug::DEBUG, "GuiView::setFocus()" << this);
 888         QMainWindow::setFocus();
 889 }
 890
 891
 892 bool GuiView::hasFocus() const
 893 {
 894         if (currentWorkArea())
 895                 return currentWorkArea()->hasFocus();
 896         if (currentMainWorkArea())
 897                 return currentMainWorkArea()->hasFocus();
 898         return d.bg_widget_->hasFocus();
 899 }
 900
 901
 902 void GuiView::focusInEvent(QFocusEvent * e)
 903 {
 904         LYXERR(Debug::DEBUG, "GuiView::focusInEvent()" << this);
 905         QMainWindow::focusInEvent(e);
 906         // Make sure guiApp points to the correct view.
 907         guiApp->setCurrentView(this);
 908         if (currentWorkArea())
 909                 currentWorkArea()->setFocus();
 910         else if (currentMainWorkArea())
 911                 currentMainWorkArea()->setFocus();
 912         else
 913                 d.bg_widget_->setFocus();
 914 }
 915
 916
 917 void GuiView::showEvent(QShowEvent * e)
 918 {
 919         LYXERR(Debug::GUI, "Passed Geometry "
 920                 << size().height() << "x" << size().width()
 921                 << "+" << pos().x() << "+" << pos().y());
 922
 923         if (d.splitter_->count() == 0)
 924                 // No work area, switch to the background widget.
 925                 d.setBackground();
 926
 927         updateToolbars();
 928         QMainWindow::showEvent(e);
 929 }
 930
 931
 932 bool GuiView::closeScheduled()
 933 {
 934         closing_ = true;
 935         return close();
 936 }
 937
 938
 939 bool GuiView::prepareAllBuffersForLogout()
 940 {
 941         Buffer * first = theBufferList().first();
 942         if (!first)
 943                 return true;
 944
 945         // First, iterate over all buffers and ask the users if unsaved
 946         // changes should be saved.
 947         // We cannot use a for loop as the buffer list cycles.
 948         Buffer * b = first;
 949         do {
 950                 if (!saveBufferIfNeeded(const_cast<Buffer &>(*b), false))
 951                         return false;
 952                 b = theBufferList().next(b);
 953         } while (b != first);
 954
 955         // Next, save session state
 956         // When a view/window was closed before without quitting LyX, there
 957         // are already entries in the lastOpened list.
 958         theSession().lastOpened().clear();
 959         writeSession();
 960
 961         return true;
 962 }
 963
 964
 965 /** Destroy only all tabbed WorkAreas. Destruction of other WorkAreas
 966  ** is responsibility of the container (e.g., dialog)
 967  **/
 968 void GuiView::closeEvent(QCloseEvent * close_event)
 969 {
 970         LYXERR(Debug::DEBUG, "GuiView::closeEvent()");
 971
 972         if (!GuiViewPrivate::busyBuffers.isEmpty()) {
 973                 Alert::warning(_("Exit LyX"),
 974                         _("LyX could not be closed because documents are being processed by LyX."));
 975                 close_event->setAccepted(false);
 976                 return;
 977         }
 978
 979         // If the user pressed the x (so we didn't call closeView
 980         // programmatically), we want to clear all existing entries.
 981         if (!closing_)
 982                 theSession().lastOpened().clear();
 983         closing_ = true;
 984
 985         writeSession();
 986
 987         // it can happen that this event arrives without selecting the view,
 988         // e.g. when clicking the close button on a background window.
 989         setFocus();
 990         if (!closeWorkAreaAll()) {
 991                 closing_ = false;
 992                 close_event->ignore();
 993                 return;
 994         }
 995
 996         // Make sure that nothing will use this to be closed View.
 997         guiApp->unregisterView(this);
 998
 999         if (isFullScreen()) {
1000                 // Switch off fullscreen before closing.
1001                 toggleFullScreen();
1002                 updateDialogs();
1003         }
1004
1005         // Make sure the timer time out will not trigger a statusbar update.
1006         d.statusbar_timer_.stop();
1007
1008         // Saving fullscreen requires additional tweaks in the toolbar code.
1009         // It wouldn't also work under linux natively.
1010         if (lyxrc.allow_geometry_session) {
1011                 saveLayout();
1012                 saveUISettings();
1013         }
1014
1015         close_event->accept();
1016 }
1017
1018
1019 void GuiView::dragEnterEvent(QDragEnterEvent * event)
1020 {
1021         if (event->mimeData()->hasUrls())
1022                 event->accept();
1023         /// \todo Ask lyx-devel is this is enough:
1024         /// if (event->mimeData()->hasFormat("text/plain"))
1025         ///     event->acceptProposedAction();
1026 }
1027
1028
1029 void GuiView::dropEvent(QDropEvent * event)
1030 {
1031         QList<QUrl> files = event->mimeData()->urls();
1032         if (files.isEmpty())
1033                 return;
1034
1035         LYXERR(Debug::GUI, "GuiView::dropEvent: got URLs!");
1036         for (int i = 0; i != files.size(); ++i) {
1037                 string const file = os::internal_path(fromqstr(
1038                         files.at(i).toLocalFile()));
1039                 if (file.empty())
1040                         continue;
1041
1042                 string const ext = support::getExtension(file);
1043                 vector<const Format *> found_formats;
1044
1045                 // Find all formats that have the correct extension.
1046                 vector<const Format *> const & import_formats
1047                         = theConverters().importableFormats();
1048                 vector<const Format *>::const_iterator it = import_formats.begin();
1049                 for (; it != import_formats.end(); ++it)
1050                         if ((*it)->hasExtension(ext))
1051                                 found_formats.push_back(*it);
1052
1053                 FuncRequest cmd;
1054                 if (found_formats.size() >= 1) {
1055                         if (found_formats.size() > 1) {
1056                                 //FIXME: show a dialog to choose the correct importable format
1057                                 LYXERR(Debug::FILES,
1058                                         "Multiple importable formats found, selecting first");
1059                         }
1060                         string const arg = found_formats[0]->name() + " " + file;
1061                         cmd = FuncRequest(LFUN_BUFFER_IMPORT, arg);
1062                 }
1063                 else {
1064                         //FIXME: do we have to explicitly check whether it's a lyx file?
1065                         LYXERR(Debug::FILES,
1066                                 "No formats found, trying to open it as a lyx file");
1067                         cmd = FuncRequest(LFUN_FILE_OPEN, file);
1068                 }
1069                 // add the functions to the queue
1070                 guiApp->addToFuncRequestQueue(cmd);
1071                 event->accept();
1072         }
1073         // now process the collected functions. We perform the events
1074         // asynchronously. This prevents potential problems in case the
1075         // BufferView is closed within an event.
1076         guiApp->processFuncRequestQueueAsync();
1077 }
1078
1079
1080 void GuiView::message(docstring const & str)
1081 {
1082         if (ForkedProcess::iAmAChild())
1083                 return;
1084
1085         // call is moved to GUI-thread by GuiProgress
1086         d.progress_->appendMessage(toqstr(str));
1087 }
1088
1089
1090 void GuiView::clearMessageText()
1091 {
1092         message(docstring());
1093 }
1094
1095
1096 void GuiView::updateStatusBarMessage(QString const & str)
1097 {
1098         statusBar()->showMessage(str);
1099         d.statusbar_timer_.stop();
1100         d.statusbar_timer_.start(3000);
1101 }
1102
1103
1104 void GuiView::clearMessage()
1105 {
1106         // FIXME: This code was introduced in r19643 to fix bug #4123. However,
1107         // the hasFocus function mostly returns false, even if the focus is on
1108         // a workarea in this view.
1109         //if (!hasFocus())
1110         //      return;
1111         showMessage();
1112         d.statusbar_timer_.stop();
1113 }
1114
1115
1116 void GuiView::updateWindowTitle(GuiWorkArea * wa)
1117 {
1118         if (wa != d.current_work_area_
1119                 || wa->bufferView().buffer().isInternal())
1120                 return;
1121         Buffer const & buf = wa->bufferView().buffer();
1122         // Set the windows title
1123         docstring title = buf.fileName().displayName(130) + from_ascii("[*]");
1124         if (buf.notifiesExternalModification()) {
1125                 title = bformat(_("%1$s (modified externally)"), title);
1126                 // If the external modification status has changed, then maybe the status of
1127                 // buffer-save has changed too.
1128                 updateToolbars();
1129         }
1130 #ifndef Q_WS_MAC
1131         title += from_ascii(" - LyX");
1132 #endif
1133         setWindowTitle(toqstr(title));
1134         // Sets the path for the window: this is used by OSX to
1135         // allow a context click on the title bar showing a menu
1136         // with the path up to the file
1137         setWindowFilePath(toqstr(buf.absFileName()));
1138         // Tell Qt whether the current document is changed
1139         setWindowModified(!buf.isClean());
1140
1141         if (buf.hasReadonlyFlag())
1142                 read_only_->show();
1143         else
1144                 read_only_->hide();
1145
1146         if (buf.lyxvc().inUse()) {
1147                 version_control_->show();
1148                 version_control_->setText(toqstr(buf.lyxvc().vcstatus()));
1149         } else
1150                 version_control_->hide();
1151 }
1152
1153
1154 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
1155 {
1156         if (d.current_work_area_)
1157                 // disconnect the current work area from all slots
1158                 QObject::disconnect(d.current_work_area_, 0, this, 0);
1159         disconnectBuffer();
1160         disconnectBufferView();
1161         connectBufferView(wa->bufferView());
1162         connectBuffer(wa->bufferView().buffer());
1163         d.current_work_area_ = wa;
1164         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1165                          this, SLOT(updateWindowTitle(GuiWorkArea *)));
1166         QObject::connect(wa, SIGNAL(busy(bool)),
1167                          this, SLOT(setBusy(bool)));
1168         // connection of a signal to a signal
1169         QObject::connect(wa, SIGNAL(bufferViewChanged()),
1170                          this, SIGNAL(bufferViewChanged()));
1171         Q_EMIT updateWindowTitle(wa);
1172         Q_EMIT bufferViewChanged();
1173 }
1174
1175
1176 void GuiView::onBufferViewChanged()
1177 {
1178         structureChanged();
1179         // Buffer-dependent dialogs must be updated. This is done here because
1180         // some dialogs require buffer()->text.
1181         updateDialogs();
1182 }
1183
1184
1185 void GuiView::on_lastWorkAreaRemoved()
1186 {
1187         if (closing_)
1188                 // We already are in a close event. Nothing more to do.
1189                 return;
1190
1191         if (d.splitter_->count() > 1)
1192                 // We have a splitter so don't close anything.
1193                 return;
1194
1195         // Reset and updates the dialogs.
1196         Q_EMIT bufferViewChanged();
1197
1198         resetWindowTitle();
1199         updateStatusBar();
1200
1201         if (lyxrc.open_buffers_in_tabs)
1202                 // Nothing more to do, the window should stay open.
1203                 return;
1204
1205         if (guiApp->viewIds().size() > 1) {
1206                 close();
1207                 return;
1208         }
1209
1210 #ifdef Q_OS_MAC
1211         // On Mac we also close the last window because the application stay
1212         // resident in memory. On other platforms we don't close the last
1213         // window because this would quit the application.
1214         close();
1215 #endif
1216 }
1217
1218
1219 void GuiView::updateStatusBar()
1220 {
1221         // let the user see the explicit message
1222         if (d.statusbar_timer_.isActive())
1223                 return;
1224
1225         showMessage();
1226 }
1227
1228
1229 void GuiView::showMessage()
1230 {
1231         if (busy_)
1232                 return;
1233         QString msg = toqstr(theGuiApp()->viewStatusMessage());
1234         if (msg.isEmpty()) {
1235                 BufferView const * bv = currentBufferView();
1236                 if (bv)
1237                         msg = toqstr(bv->cursor().currentState());
1238                 else
1239                         msg = qt_("Welcome to LyX!");
1240         }
1241         statusBar()->showMessage(msg);
1242 }
1243
1244
1245 bool GuiView::event(QEvent * e)
1246 {
1247         switch (e->type())
1248         {
1249         // Useful debug code:
1250         //case QEvent::ActivationChange:
1251         //case QEvent::WindowDeactivate:
1252         //case QEvent::Paint:
1253         //case QEvent::Enter:
1254         //case QEvent::Leave:
1255         //case QEvent::HoverEnter:
1256         //case QEvent::HoverLeave:
1257         //case QEvent::HoverMove:
1258         //case QEvent::StatusTip:
1259         //case QEvent::DragEnter:
1260         //case QEvent::DragLeave:
1261         //case QEvent::Drop:
1262         //      break;
1263
1264         case QEvent::WindowActivate: {
1265                 GuiView * old_view = guiApp->currentView();
1266                 if (this == old_view) {
1267                         setFocus();
1268                         return QMainWindow::event(e);
1269                 }
1270                 if (old_view && old_view->currentBufferView()) {
1271                         // save current selection to the selection buffer to allow
1272                         // middle-button paste in this window.
1273                         cap::saveSelection(old_view->currentBufferView()->cursor());
1274                 }
1275                 guiApp->setCurrentView(this);
1276                 if (d.current_work_area_)
1277                         on_currentWorkAreaChanged(d.current_work_area_);
1278                 else
1279                         resetWindowTitle();
1280                 setFocus();
1281                 return QMainWindow::event(e);
1282         }
1283
1284         case QEvent::ShortcutOverride: {
1285                 // See bug 4888
1286                 if (isFullScreen() && menuBar()->isHidden()) {
1287                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
1288                         // FIXME: we should also try to detect special LyX shortcut such as
1289                         // Alt-P and Alt-M. Right now there is a hack in
1290                         // GuiWorkArea::processKeySym() that hides again the menubar for
1291                         // those cases.
1292                         if (ke->modifiers() & Qt::AltModifier && ke->key() != Qt::Key_Alt) {
1293                                 menuBar()->show();
1294                                 return QMainWindow::event(e);
1295                         }
1296                 }
1297                 return QMainWindow::event(e);
1298         }
1299
1300         default:
1301                 return QMainWindow::event(e);
1302         }
1303 }
1304
1305 void GuiView::resetWindowTitle()
1306 {
1307         setWindowTitle(qt_("LyX"));
1308 }
1309
1310 bool GuiView::focusNextPrevChild(bool /*next*/)
1311 {
1312         setFocus();
1313         return true;
1314 }
1315
1316
1317 bool GuiView::busy() const
1318 {
1319         return busy_ > 0;
1320 }
1321
1322
1323 void GuiView::setBusy(bool busy)
1324 {
1325         bool const busy_before = busy_ > 0;
1326         busy ? ++busy_ : --busy_;
1327         if ((busy_ > 0) == busy_before)
1328                 // busy state didn't change
1329                 return;
1330
1331         if (busy) {
1332                 QApplication::setOverrideCursor(Qt::WaitCursor);
1333                 return;
1334         }
1335         QApplication::restoreOverrideCursor();
1336         updateLayoutList();
1337 }
1338
1339
1340 void GuiView::resetCommandExecute()
1341 {
1342         command_execute_ = false;
1343         updateToolbars();
1344 }
1345
1346
1347 double GuiView::pixelRatio() const
1348 {
1349 #if QT_VERSION >= 0x050000
1350         return qt_scale_factor * devicePixelRatio();
1351 #else
1352         return 1.0;
1353 #endif
1354 }
1355
1356
1357 GuiWorkArea * GuiView::workArea(int index)
1358 {
1359         if (TabWorkArea * twa = d.currentTabWorkArea())
1360                 if (index < twa->count())
1361                         return twa->workArea(index);
1362         return 0;
1363 }
1364
1365
1366 GuiWorkArea * GuiView::workArea(Buffer & buffer)
1367 {
1368         if (currentWorkArea()
1369                 && &currentWorkArea()->bufferView().buffer() == &buffer)
1370                 return currentWorkArea();
1371         if (TabWorkArea * twa = d.currentTabWorkArea())
1372                 return twa->workArea(buffer);
1373         return 0;
1374 }
1375
1376
1377 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
1378 {
1379         // Automatically create a TabWorkArea if there are none yet.
1380         TabWorkArea * tab_widget = d.splitter_->count()
1381                 ? d.currentTabWorkArea() : addTabWorkArea();
1382         return tab_widget->addWorkArea(buffer, *this);
1383 }
1384
1385
1386 TabWorkArea * GuiView::addTabWorkArea()
1387 {
1388         TabWorkArea * twa = new TabWorkArea;
1389         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
1390                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
1391         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
1392                          this, SLOT(on_lastWorkAreaRemoved()));
1393
1394         d.splitter_->addWidget(twa);
1395         d.stack_widget_->setCurrentWidget(d.splitter_);
1396         return twa;
1397 }
1398
1399
1400 GuiWorkArea const * GuiView::currentWorkArea() const
1401 {
1402         return d.current_work_area_;
1403 }
1404
1405
1406 GuiWorkArea * GuiView::currentWorkArea()
1407 {
1408         return d.current_work_area_;
1409 }
1410
1411
1412 GuiWorkArea const * GuiView::currentMainWorkArea() const
1413 {
1414         if (!d.currentTabWorkArea())
1415                 return 0;
1416         return d.currentTabWorkArea()->currentWorkArea();
1417 }
1418
1419
1420 GuiWorkArea * GuiView::currentMainWorkArea()
1421 {
1422         if (!d.currentTabWorkArea())
1423                 return 0;
1424         return d.currentTabWorkArea()->currentWorkArea();
1425 }
1426
1427
1428 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
1429 {
1430         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
1431         if (!wa) {
1432                 d.current_work_area_ = 0;
1433                 d.setBackground();
1434                 Q_EMIT bufferViewChanged();
1435                 return;
1436         }
1437
1438         // FIXME: I've no clue why this is here and why it accesses
1439         //  theGuiApp()->currentView, which might be 0 (bug 6464).
1440         //  See also 27525 (vfr).
1441         if (theGuiApp()->currentView() == this
1442                   && theGuiApp()->currentView()->currentWorkArea() == wa)
1443                 return;
1444
1445         if (currentBufferView())
1446                 cap::saveSelection(currentBufferView()->cursor());
1447
1448         theGuiApp()->setCurrentView(this);
1449         d.current_work_area_ = wa;
1450
1451         // We need to reset this now, because it will need to be
1452         // right if the tabWorkArea gets reset in the for loop. We
1453         // will change it back if we aren't in that case.
1454         GuiWorkArea * const old_cmwa = d.current_main_work_area_;
1455         d.current_main_work_area_ = wa;
1456
1457         for (int i = 0; i != d.splitter_->count(); ++i) {
1458                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
1459                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea()
1460                                 << ", Current main wa: " << currentMainWorkArea());
1461                         return;
1462                 }
1463         }
1464
1465         d.current_main_work_area_ = old_cmwa;
1466
1467         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
1468         on_currentWorkAreaChanged(wa);
1469         BufferView & bv = wa->bufferView();
1470         bv.cursor().fixIfBroken();
1471         bv.updateMetrics();
1472         wa->setUpdatesEnabled(true);
1473         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1474 }
1475
1476
1477 void GuiView::removeWorkArea(GuiWorkArea * wa)
1478 {
1479         LASSERT(wa, return);
1480         if (wa == d.current_work_area_) {
1481                 disconnectBuffer();
1482                 disconnectBufferView();
1483                 d.current_work_area_ = 0;
1484                 d.current_main_work_area_ = 0;
1485         }
1486
1487         bool found_twa = false;
1488         for (int i = 0; i != d.splitter_->count(); ++i) {
1489                 TabWorkArea * twa = d.tabWorkArea(i);
1490                 if (twa->removeWorkArea(wa)) {
1491                         // Found in this tab group, and deleted the GuiWorkArea.
1492                         found_twa = true;
1493                         if (twa->count() != 0) {
1494                                 if (d.current_work_area_ == 0)
1495                                         // This means that we are closing the current GuiWorkArea, so
1496                                         // switch to the next GuiWorkArea in the found TabWorkArea.
1497                                         setCurrentWorkArea(twa->currentWorkArea());
1498                         } else {
1499                                 // No more WorkAreas in this tab group, so delete it.
1500                                 delete twa;
1501                         }
1502                         break;
1503                 }
1504         }
1505
1506         // It is not a tabbed work area (i.e., the search work area), so it
1507         // should be deleted by other means.
1508         LASSERT(found_twa, return);
1509
1510         if (d.current_work_area_ == 0) {
1511                 if (d.splitter_->count() != 0) {
1512                         TabWorkArea * twa = d.currentTabWorkArea();
1513                         setCurrentWorkArea(twa->currentWorkArea());
1514                 } else {
1515                         // No more work areas, switch to the background widget.
1516                         setCurrentWorkArea(0);
1517                 }
1518         }
1519 }
1520
1521
1522 LayoutBox * GuiView::getLayoutDialog() const
1523 {
1524         return d.layout_;
1525 }
1526
1527
1528 void GuiView::updateLayoutList()
1529 {
1530         if (d.layout_)
1531                 d.layout_->updateContents(false);
1532 }
1533
1534
1535 void GuiView::updateToolbars()
1536 {
1537         ToolbarMap::iterator end = d.toolbars_.end();
1538         if (d.current_work_area_) {
1539                 int context = 0;
1540                 if (d.current_work_area_->bufferView().cursor().inMathed()
1541                         && !d.current_work_area_->bufferView().cursor().inRegexped())
1542                         context |= Toolbars::MATH;
1543                 if (lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled())
1544                         context |= Toolbars::TABLE;
1545                 if (currentBufferView()->buffer().areChangesPresent()
1546                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled()
1547                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onOff(true))
1548                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).enabled()
1549                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).onOff(true)))
1550                         context |= Toolbars::REVIEW;
1551                 if (lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled())
1552                         context |= Toolbars::MATHMACROTEMPLATE;
1553                 if (lyx::getStatus(FuncRequest(LFUN_IN_IPA)).enabled())
1554                         context |= Toolbars::IPA;
1555                 if (command_execute_)
1556                         context |= Toolbars::MINIBUFFER;
1557                 if (minibuffer_focus_) {
1558                         context |= Toolbars::MINIBUFFER_FOCUS;
1559                         minibuffer_focus_ = false;
1560                 }
1561
1562                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1563                         it->second->update(context);
1564         } else
1565                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1566                         it->second->update();
1567 }
1568
1569
1570 void GuiView::setBuffer(Buffer * newBuffer)
1571 {
1572         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << endl);
1573         LASSERT(newBuffer, return);
1574
1575         GuiWorkArea * wa = workArea(*newBuffer);
1576         if (wa == 0) {
1577                 setBusy(true);
1578                 newBuffer->masterBuffer()->updateBuffer();
1579                 setBusy(false);
1580                 wa = addWorkArea(*newBuffer);
1581                 // scroll to the position when the BufferView was last closed
1582                 if (lyxrc.use_lastfilepos) {
1583                         LastFilePosSection::FilePos filepos =
1584                                 theSession().lastFilePos().load(newBuffer->fileName());
1585                         wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1586                 }
1587         } else {
1588                 //Disconnect the old buffer...there's no new one.
1589                 disconnectBuffer();
1590         }
1591         connectBuffer(*newBuffer);
1592         connectBufferView(wa->bufferView());
1593         setCurrentWorkArea(wa);
1594 }
1595
1596
1597 void GuiView::connectBuffer(Buffer & buf)
1598 {
1599         buf.setGuiDelegate(this);
1600 }
1601
1602
1603 void GuiView::disconnectBuffer()
1604 {
1605         if (d.current_work_area_)
1606                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1607 }
1608
1609
1610 void GuiView::connectBufferView(BufferView & bv)
1611 {
1612         bv.setGuiDelegate(this);
1613 }
1614
1615
1616 void GuiView::disconnectBufferView()
1617 {
1618         if (d.current_work_area_)
1619                 d.current_work_area_->bufferView().setGuiDelegate(0);
1620 }
1621
1622
1623 void GuiView::errors(string const & error_type, bool from_master)
1624 {
1625         BufferView const * const bv = currentBufferView();
1626         if (!bv)
1627                 return;
1628
1629 #if EXPORT_in_THREAD
1630         // We are called with from_master == false by default, so we
1631         // have to figure out whether that is the case or not.
1632         ErrorList & el = bv->buffer().errorList(error_type);
1633         if (el.empty()) {
1634             el = bv->buffer().masterBuffer()->errorList(error_type);
1635             from_master = true;
1636         }
1637 #else
1638         ErrorList const & el = from_master ?
1639                 bv->buffer().masterBuffer()->errorList(error_type) :
1640                 bv->buffer().errorList(error_type);
1641 #endif
1642
1643         if (el.empty())
1644                 return;
1645
1646         string data = error_type;
1647         if (from_master)
1648                 data = "from_master|" + error_type;
1649         showDialog("errorlist", data);
1650 }
1651
1652
1653 void GuiView::updateTocItem(string const & type, DocIterator const & dit)
1654 {
1655         d.toc_models_.updateItem(toqstr(type), dit);
1656 }
1657
1658
1659 void GuiView::structureChanged()
1660 {
1661         // This is called from the Buffer, which has no way to ensure that cursors
1662         // in BufferView remain valid.
1663         if (documentBufferView())
1664                 documentBufferView()->cursor().sanitize();
1665         // FIXME: This is slightly expensive, though less than the tocBackend update
1666         // (#9880). This also resets the view in the Toc Widget (#6675).
1667         d.toc_models_.reset(documentBufferView());
1668         // Navigator needs more than a simple update in this case. It needs to be
1669         // rebuilt.
1670         updateDialog("toc", "");
1671 }
1672
1673
1674 void GuiView::updateDialog(string const & name, string const & data)
1675 {
1676         if (!isDialogVisible(name))
1677                 return;
1678
1679         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1680         if (it == d.dialogs_.end())
1681                 return;
1682
1683         Dialog * const dialog = it->second.get();
1684         if (dialog->isVisibleView())
1685                 dialog->initialiseParams(data);
1686 }
1687
1688
1689 BufferView * GuiView::documentBufferView()
1690 {
1691         return currentMainWorkArea()
1692                 ? &currentMainWorkArea()->bufferView()
1693                 : 0;
1694 }
1695
1696
1697 BufferView const * GuiView::documentBufferView() const
1698 {
1699         return currentMainWorkArea()
1700                 ? &currentMainWorkArea()->bufferView()
1701                 : 0;
1702 }
1703
1704
1705 BufferView * GuiView::currentBufferView()
1706 {
1707         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1708 }
1709
1710
1711 BufferView const * GuiView::currentBufferView() const
1712 {
1713         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1714 }
1715
1716
1717 docstring GuiView::GuiViewPrivate::autosaveAndDestroy(
1718         Buffer const * orig, Buffer * clone)
1719 {
1720         bool const success = clone->autoSave();
1721         delete clone;
1722         busyBuffers.remove(orig);
1723         return success
1724                 ? _("Automatic save done.")
1725                 : _("Automatic save failed!");
1726 }
1727
1728
1729 void GuiView::autoSave()
1730 {
1731         LYXERR(Debug::INFO, "Running autoSave()");
1732
1733         Buffer * buffer = documentBufferView()
1734                 ? &documentBufferView()->buffer() : 0;
1735         if (!buffer) {
1736                 resetAutosaveTimers();
1737                 return;
1738         }
1739
1740         GuiViewPrivate::busyBuffers.insert(buffer);
1741         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::autosaveAndDestroy,
1742                 buffer, buffer->cloneBufferOnly());
1743         d.autosave_watcher_.setFuture(f);
1744         resetAutosaveTimers();
1745 }
1746
1747
1748 void GuiView::resetAutosaveTimers()
1749 {
1750         if (lyxrc.autosave)
1751                 d.autosave_timeout_.restart();
1752 }
1753
1754
1755 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1756 {
1757         bool enable = true;
1758         Buffer * buf = currentBufferView()
1759                 ? &currentBufferView()->buffer() : 0;
1760         Buffer * doc_buffer = documentBufferView()
1761                 ? &(documentBufferView()->buffer()) : 0;
1762
1763 #ifdef Q_OS_MAC
1764         /* In LyX/Mac, when a dialog is open, the menus of the
1765            application can still be accessed without giving focus to
1766            the main window. In this case, we want to disable the menu
1767            entries that are buffer-related.
1768            This code must not be used on Linux and Windows, since it
1769            would disable buffer-related entries when hovering over the
1770            menu (see bug #9574).
1771          */
1772         if (cmd.origin() == FuncRequest::MENU && !hasFocus()) {
1773                 buf = 0;
1774                 doc_buffer = 0;
1775         }
1776 #endif
1777
1778         // Check whether we need a buffer
1779         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
1780                 // no, exit directly
1781                 flag.message(from_utf8(N_("Command not allowed with"
1782                                         "out any document open")));
1783                 flag.setEnabled(false);
1784                 return true;
1785         }
1786
1787         if (cmd.origin() == FuncRequest::TOC) {
1788                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1789                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
1790                         flag.setEnabled(false);
1791                 return true;
1792         }
1793
1794         switch(cmd.action()) {
1795         case LFUN_BUFFER_IMPORT:
1796                 break;
1797
1798         case LFUN_MASTER_BUFFER_UPDATE:
1799         case LFUN_MASTER_BUFFER_VIEW:
1800                 enable = doc_buffer
1801                         && (doc_buffer->parent() != 0
1802                             || doc_buffer->hasChildren())
1803                         && !d.processing_thread_watcher_.isRunning();
1804                 break;
1805
1806         case LFUN_BUFFER_UPDATE:
1807         case LFUN_BUFFER_VIEW: {
1808                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
1809                         enable = false;
1810                         break;
1811                 }
1812                 string format = to_utf8(cmd.argument());
1813                 if (cmd.argument().empty())
1814                         format = doc_buffer->params().getDefaultOutputFormat();
1815                 enable = doc_buffer->params().isExportable(format, true);
1816                 break;
1817         }
1818
1819         case LFUN_BUFFER_RELOAD:
1820                 enable = doc_buffer && !doc_buffer->isUnnamed()
1821                         && doc_buffer->fileName().exists() && !doc_buffer->isClean();
1822                 break;
1823
1824         case LFUN_BUFFER_CHILD_OPEN:
1825                 enable = doc_buffer != 0;
1826                 break;
1827
1828         case LFUN_BUFFER_WRITE:
1829                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1830                 break;
1831
1832         //FIXME: This LFUN should be moved to GuiApplication.
1833         case LFUN_BUFFER_WRITE_ALL: {
1834                 // We enable the command only if there are some modified buffers
1835                 Buffer * first = theBufferList().first();
1836                 enable = false;
1837                 if (!first)
1838                         break;
1839                 Buffer * b = first;
1840                 // We cannot use a for loop as the buffer list is a cycle.
1841                 do {
1842                         if (!b->isClean()) {
1843                                 enable = true;
1844                                 break;
1845                         }
1846                         b = theBufferList().next(b);
1847                 } while (b != first);
1848                 break;
1849         }
1850
1851         case LFUN_BUFFER_EXTERNAL_MODIFICATION_CLEAR:
1852                 enable = doc_buffer && doc_buffer->notifiesExternalModification();
1853                 break;
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_ICON_SIZE:
1896                 flag.setOnOff(d.iconSize(cmd.argument()) == iconSize());
1897                 break;
1898
1899         case LFUN_DROP_LAYOUTS_CHOICE:
1900                 enable = buf != 0;
1901                 break;
1902
1903         case LFUN_UI_TOGGLE:
1904                 flag.setOnOff(isFullScreen());
1905                 break;
1906
1907         case LFUN_DIALOG_DISCONNECT_INSET:
1908                 break;
1909
1910         case LFUN_DIALOG_HIDE:
1911                 // FIXME: should we check if the dialog is shown?
1912                 break;
1913
1914         case LFUN_DIALOG_TOGGLE:
1915                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1916                 // fall through to set "enable"
1917         case LFUN_DIALOG_SHOW: {
1918                 string const name = cmd.getArg(0);
1919                 if (!doc_buffer)
1920                         enable = name == "aboutlyx"
1921                                 || name == "file" //FIXME: should be removed.
1922                                 || name == "prefs"
1923                                 || name == "texinfo"
1924                                 || name == "progress"
1925                                 || name == "compare";
1926                 else if (name == "character" || name == "symbols"
1927                         || name == "mathdelimiter" || name == "mathmatrix") {
1928                         if (!buf || buf->isReadonly())
1929                                 enable = false;
1930                         else {
1931                                 Cursor const & cur = currentBufferView()->cursor();
1932                                 enable = !(cur.inTexted() && cur.paragraph().isPassThru());
1933                         }
1934                 }
1935                 else if (name == "latexlog")
1936                         enable = FileName(doc_buffer->logName()).isReadableFile();
1937                 else if (name == "spellchecker")
1938                         enable = theSpellChecker()
1939                                 && !doc_buffer->isReadonly()
1940                                 && !doc_buffer->text().empty();
1941                 else if (name == "vclog")
1942                         enable = doc_buffer->lyxvc().inUse();
1943                 break;
1944         }
1945
1946         case LFUN_DIALOG_UPDATE: {
1947                 string const name = cmd.getArg(0);
1948                 if (!buf)
1949                         enable = name == "prefs";
1950                 break;
1951         }
1952
1953         case LFUN_COMMAND_EXECUTE:
1954         case LFUN_MESSAGE:
1955         case LFUN_MENU_OPEN:
1956                 // Nothing to check.
1957                 break;
1958
1959         case LFUN_COMPLETION_INLINE:
1960                 if (!d.current_work_area_
1961                         || !d.current_work_area_->completer().inlinePossible(
1962                         currentBufferView()->cursor()))
1963                         enable = false;
1964                 break;
1965
1966         case LFUN_COMPLETION_POPUP:
1967                 if (!d.current_work_area_
1968                         || !d.current_work_area_->completer().popupPossible(
1969                         currentBufferView()->cursor()))
1970                         enable = false;
1971                 break;
1972
1973         case LFUN_COMPLETE:
1974                 if (!d.current_work_area_
1975                         || !d.current_work_area_->completer().inlinePossible(
1976                         currentBufferView()->cursor()))
1977                         enable = false;
1978                 break;
1979
1980         case LFUN_COMPLETION_ACCEPT:
1981                 if (!d.current_work_area_
1982                         || (!d.current_work_area_->completer().popupVisible()
1983                         && !d.current_work_area_->completer().inlineVisible()
1984                         && !d.current_work_area_->completer().completionAvailable()))
1985                         enable = false;
1986                 break;
1987
1988         case LFUN_COMPLETION_CANCEL:
1989                 if (!d.current_work_area_
1990                         || (!d.current_work_area_->completer().popupVisible()
1991                         && !d.current_work_area_->completer().inlineVisible()))
1992                         enable = false;
1993                 break;
1994
1995         case LFUN_BUFFER_ZOOM_OUT:
1996         case LFUN_BUFFER_ZOOM_IN: {
1997                 // only diff between these two is that the default for ZOOM_OUT
1998                 // is a neg. number
1999                 bool const neg_zoom =
2000                         convert<int>(cmd.argument()) < 0 ||
2001                         (cmd.action() == LFUN_BUFFER_ZOOM_OUT && cmd.argument().empty());
2002                 if (lyxrc.zoom <= zoom_min_ && neg_zoom) {
2003                         docstring const msg =
2004                                 bformat(_("Zoom level cannot be less than %1$d%."), zoom_min_);
2005                         flag.message(msg);
2006                         enable = false;
2007                 } else
2008                         enable = doc_buffer;
2009                 break;
2010         }
2011         case LFUN_BUFFER_MOVE_NEXT:
2012         case LFUN_BUFFER_MOVE_PREVIOUS:
2013                 // we do not cycle when moving
2014         case LFUN_BUFFER_NEXT:
2015         case LFUN_BUFFER_PREVIOUS:
2016                 // because we cycle, it doesn't matter whether on first or last
2017                 enable = (d.currentTabWorkArea()->count() > 1);
2018                 break;
2019         case LFUN_BUFFER_SWITCH:
2020                 // toggle on the current buffer, but do not toggle off
2021                 // the other ones (is that a good idea?)
2022                 if (doc_buffer
2023                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
2024                         flag.setOnOff(true);
2025                 break;
2026
2027         case LFUN_VC_REGISTER:
2028                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
2029                 break;
2030         case LFUN_VC_RENAME:
2031                 enable = doc_buffer && doc_buffer->lyxvc().renameEnabled();
2032                 break;
2033         case LFUN_VC_COPY:
2034                 enable = doc_buffer && doc_buffer->lyxvc().copyEnabled();
2035                 break;
2036         case LFUN_VC_CHECK_IN:
2037                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
2038                 break;
2039         case LFUN_VC_CHECK_OUT:
2040                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
2041                 break;
2042         case LFUN_VC_LOCKING_TOGGLE:
2043                 enable = doc_buffer && !doc_buffer->hasReadonlyFlag()
2044                         && doc_buffer->lyxvc().lockingToggleEnabled();
2045                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
2046                 break;
2047         case LFUN_VC_REVERT:
2048                 enable = doc_buffer && doc_buffer->lyxvc().inUse()
2049                         && !doc_buffer->hasReadonlyFlag();
2050                 break;
2051         case LFUN_VC_UNDO_LAST:
2052                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
2053                 break;
2054         case LFUN_VC_REPO_UPDATE:
2055                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
2056                 break;
2057         case LFUN_VC_COMMAND: {
2058                 if (cmd.argument().empty())
2059                         enable = false;
2060                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
2061                         enable = false;
2062                 break;
2063         }
2064         case LFUN_VC_COMPARE:
2065                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
2066                 break;
2067
2068         case LFUN_SERVER_GOTO_FILE_ROW:
2069         case LFUN_LYX_ACTIVATE:
2070                 break;
2071         case LFUN_FORWARD_SEARCH:
2072                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty());
2073                 break;
2074
2075         case LFUN_FILE_INSERT_PLAINTEXT:
2076         case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2077                 enable = documentBufferView() && documentBufferView()->cursor().inTexted();
2078                 break;
2079
2080         case LFUN_SPELLING_CONTINUOUSLY:
2081                 flag.setOnOff(lyxrc.spellcheck_continuously);
2082                 break;
2083
2084         default:
2085                 return false;
2086         }
2087
2088         if (!enable)
2089                 flag.setEnabled(false);
2090
2091         return true;
2092 }
2093
2094
2095 static FileName selectTemplateFile()
2096 {
2097         FileDialog dlg(qt_("Select template file"));
2098         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2099         dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2100
2101         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
2102                                  QStringList(qt_("LyX Documents (*.lyx)")));
2103
2104         if (result.first == FileDialog::Later)
2105                 return FileName();
2106         if (result.second.isEmpty())
2107                 return FileName();
2108         return FileName(fromqstr(result.second));
2109 }
2110
2111
2112 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
2113 {
2114         setBusy(true);
2115
2116         Buffer * newBuffer = 0;
2117         try {
2118                 newBuffer = checkAndLoadLyXFile(filename);
2119         } catch (ExceptionMessage const & e) {
2120                 setBusy(false);
2121                 throw(e);
2122         }
2123         setBusy(false);
2124
2125         if (!newBuffer) {
2126                 message(_("Document not loaded."));
2127                 return 0;
2128         }
2129
2130         setBuffer(newBuffer);
2131         newBuffer->errors("Parse");
2132
2133         if (tolastfiles)
2134                 theSession().lastFiles().add(filename);
2135
2136         return newBuffer;
2137 }
2138
2139
2140 void GuiView::openDocument(string const & fname)
2141 {
2142         string initpath = lyxrc.document_path;
2143
2144         if (documentBufferView()) {
2145                 string const trypath = documentBufferView()->buffer().filePath();
2146                 // If directory is writeable, use this as default.
2147                 if (FileName(trypath).isDirWritable())
2148                         initpath = trypath;
2149         }
2150
2151         string filename;
2152
2153         if (fname.empty()) {
2154                 FileDialog dlg(qt_("Select document to open"));
2155                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2156                 dlg.setButton2(qt_("Examples|#E#e"), toqstr(lyxrc.example_path));
2157
2158                 QStringList const filter(qt_("LyX Documents (*.lyx)"));
2159                 FileDialog::Result result =
2160                         dlg.open(toqstr(initpath), filter);
2161
2162                 if (result.first == FileDialog::Later)
2163                         return;
2164
2165                 filename = fromqstr(result.second);
2166
2167                 // check selected filename
2168                 if (filename.empty()) {
2169                         message(_("Canceled."));
2170                         return;
2171                 }
2172         } else
2173                 filename = fname;
2174
2175         // get absolute path of file and add ".lyx" to the filename if
2176         // necessary.
2177         FileName const fullname =
2178                         fileSearch(string(), filename, "lyx", support::may_not_exist);
2179         if (!fullname.empty())
2180                 filename = fullname.absFileName();
2181
2182         if (!fullname.onlyPath().isDirectory()) {
2183                 Alert::warning(_("Invalid filename"),
2184                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
2185                                 from_utf8(fullname.absFileName())));
2186                 return;
2187         }
2188
2189         // if the file doesn't exist and isn't already open (bug 6645),
2190         // let the user create one
2191         if (!fullname.exists() && !theBufferList().exists(fullname) &&
2192             !LyXVC::file_not_found_hook(fullname)) {
2193                 // the user specifically chose this name. Believe him.
2194                 Buffer * const b = newFile(filename, string(), true);
2195                 if (b)
2196                         setBuffer(b);
2197                 return;
2198         }
2199
2200         docstring const disp_fn = makeDisplayPath(filename);
2201         message(bformat(_("Opening document %1$s..."), disp_fn));
2202
2203         docstring str2;
2204         Buffer * buf = loadDocument(fullname);
2205         if (buf) {
2206                 str2 = bformat(_("Document %1$s opened."), disp_fn);
2207                 if (buf->lyxvc().inUse())
2208                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
2209                                 " " + _("Version control detected.");
2210         } else {
2211                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
2212         }
2213         message(str2);
2214 }
2215
2216 // FIXME: clean that
2217 static bool import(GuiView * lv, FileName const & filename,
2218         string const & format, ErrorList & errorList)
2219 {
2220         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
2221
2222         string loader_format;
2223         vector<string> loaders = theConverters().loaders();
2224         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
2225                 vector<string>::const_iterator it = loaders.begin();
2226                 vector<string>::const_iterator en = loaders.end();
2227                 for (; it != en; ++it) {
2228                         if (!theConverters().isReachable(format, *it))
2229                                 continue;
2230
2231                         string const tofile =
2232                                 support::changeExtension(filename.absFileName(),
2233                                 theFormats().extension(*it));
2234                         if (!theConverters().convert(0, filename, FileName(tofile),
2235                                 filename, format, *it, errorList))
2236                                 return false;
2237                         loader_format = *it;
2238                         break;
2239                 }
2240                 if (loader_format.empty()) {
2241                         frontend::Alert::error(_("Couldn't import file"),
2242                                          bformat(_("No information for importing the format %1$s."),
2243                                          theFormats().prettyName(format)));
2244                         return false;
2245                 }
2246         } else
2247                 loader_format = format;
2248
2249         if (loader_format == "lyx") {
2250                 Buffer * buf = lv->loadDocument(lyxfile);
2251                 if (!buf)
2252                         return false;
2253         } else {
2254                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
2255                 if (!b)
2256                         return false;
2257                 lv->setBuffer(b);
2258                 bool as_paragraphs = loader_format == "textparagraph";
2259                 string filename2 = (loader_format == format) ? filename.absFileName()
2260                         : support::changeExtension(filename.absFileName(),
2261                                           theFormats().extension(loader_format));
2262                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
2263                         as_paragraphs);
2264                 guiApp->setCurrentView(lv);
2265                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
2266         }
2267
2268         return true;
2269 }
2270
2271
2272 void GuiView::importDocument(string const & argument)
2273 {
2274         string format;
2275         string filename = split(argument, format, ' ');
2276
2277         LYXERR(Debug::INFO, format << " file: " << filename);
2278
2279         // need user interaction
2280         if (filename.empty()) {
2281                 string initpath = lyxrc.document_path;
2282                 if (documentBufferView()) {
2283                         string const trypath = documentBufferView()->buffer().filePath();
2284                         // If directory is writeable, use this as default.
2285                         if (FileName(trypath).isDirWritable())
2286                                 initpath = trypath;
2287                 }
2288
2289                 docstring const text = bformat(_("Select %1$s file to import"),
2290                         theFormats().prettyName(format));
2291
2292                 FileDialog dlg(toqstr(text));
2293                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2294                 dlg.setButton2(qt_("Examples|#E#e"), toqstr(lyxrc.example_path));
2295
2296                 docstring filter = theFormats().prettyName(format);
2297                 filter += " (*.{";
2298                 // FIXME UNICODE
2299                 filter += from_utf8(theFormats().extensions(format));
2300                 filter += "})";
2301
2302                 FileDialog::Result result =
2303                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2304
2305                 if (result.first == FileDialog::Later)
2306                         return;
2307
2308                 filename = fromqstr(result.second);
2309
2310                 // check selected filename
2311                 if (filename.empty())
2312                         message(_("Canceled."));
2313         }
2314
2315         if (filename.empty())
2316                 return;
2317
2318         // get absolute path of file
2319         FileName const fullname(support::makeAbsPath(filename));
2320
2321         // Can happen if the user entered a path into the dialog
2322         // (see bug #7437)
2323         if (fullname.onlyFileName().empty()) {
2324                 docstring msg = bformat(_("The file name '%1$s' is invalid!\n"
2325                                           "Aborting import."),
2326                                         from_utf8(fullname.absFileName()));
2327                 frontend::Alert::error(_("File name error"), msg);
2328                 message(_("Canceled."));
2329                 return;
2330         }
2331
2332
2333         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2334
2335         // Check if the document already is open
2336         Buffer * buf = theBufferList().getBuffer(lyxfile);
2337         if (buf) {
2338                 setBuffer(buf);
2339                 if (!closeBuffer()) {
2340                         message(_("Canceled."));
2341                         return;
2342                 }
2343         }
2344
2345         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
2346
2347         // if the file exists already, and we didn't do
2348         // -i lyx thefile.lyx, warn
2349         if (lyxfile.exists() && fullname != lyxfile) {
2350
2351                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2352                         "Do you want to overwrite that document?"), displaypath);
2353                 int const ret = Alert::prompt(_("Overwrite document?"),
2354                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
2355
2356                 if (ret == 1) {
2357                         message(_("Canceled."));
2358                         return;
2359                 }
2360         }
2361
2362         message(bformat(_("Importing %1$s..."), displaypath));
2363         ErrorList errorList;
2364         if (import(this, fullname, format, errorList))
2365                 message(_("imported."));
2366         else
2367                 message(_("file not imported!"));
2368
2369         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2370 }
2371
2372
2373 void GuiView::newDocument(string const & filename, bool from_template)
2374 {
2375         FileName initpath(lyxrc.document_path);
2376         if (documentBufferView()) {
2377                 FileName const trypath(documentBufferView()->buffer().filePath());
2378                 // If directory is writeable, use this as default.
2379                 if (trypath.isDirWritable())
2380                         initpath = trypath;
2381         }
2382
2383         string templatefile;
2384         if (from_template) {
2385                 templatefile = selectTemplateFile().absFileName();
2386                 if (templatefile.empty())
2387                         return;
2388         }
2389
2390         Buffer * b;
2391         if (filename.empty())
2392                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
2393         else
2394                 b = newFile(filename, templatefile, true);
2395
2396         if (b)
2397                 setBuffer(b);
2398
2399         // If no new document could be created, it is unsure
2400         // whether there is a valid BufferView.
2401         if (currentBufferView())
2402                 // Ensure the cursor is correctly positioned on screen.
2403                 currentBufferView()->showCursor();
2404 }
2405
2406
2407 void GuiView::insertLyXFile(docstring const & fname)
2408 {
2409         BufferView * bv = documentBufferView();
2410         if (!bv)
2411                 return;
2412
2413         // FIXME UNICODE
2414         FileName filename(to_utf8(fname));
2415         if (filename.empty()) {
2416                 // Launch a file browser
2417                 // FIXME UNICODE
2418                 string initpath = lyxrc.document_path;
2419                 string const trypath = bv->buffer().filePath();
2420                 // If directory is writeable, use this as default.
2421                 if (FileName(trypath).isDirWritable())
2422                         initpath = trypath;
2423
2424                 // FIXME UNICODE
2425                 FileDialog dlg(qt_("Select LyX document to insert"));
2426                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2427                 dlg.setButton2(qt_("Examples|#E#e"), toqstr(lyxrc.example_path));
2428
2429                 FileDialog::Result result = dlg.open(toqstr(initpath),
2430                                          QStringList(qt_("LyX Documents (*.lyx)")));
2431
2432                 if (result.first == FileDialog::Later)
2433                         return;
2434
2435                 // FIXME UNICODE
2436                 filename.set(fromqstr(result.second));
2437
2438                 // check selected filename
2439                 if (filename.empty()) {
2440                         // emit message signal.
2441                         message(_("Canceled."));
2442                         return;
2443                 }
2444         }
2445
2446         bv->insertLyXFile(filename);
2447         bv->buffer().errors("Parse");
2448 }
2449
2450
2451 bool GuiView::renameBuffer(Buffer & b, docstring const & newname, RenameKind kind)
2452 {
2453         FileName fname = b.fileName();
2454         FileName const oldname = fname;
2455
2456         if (!newname.empty()) {
2457                 // FIXME UNICODE
2458                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFileName());
2459         } else {
2460                 // Switch to this Buffer.
2461                 setBuffer(&b);
2462
2463                 // No argument? Ask user through dialog.
2464                 // FIXME UNICODE
2465                 FileDialog dlg(qt_("Choose a filename to save document as"));
2466                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2467                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2468
2469                 if (!isLyXFileName(fname.absFileName()))
2470                         fname.changeExtension(".lyx");
2471
2472                 FileDialog::Result result =
2473                         dlg.save(toqstr(fname.onlyPath().absFileName()),
2474                                    QStringList(qt_("LyX Documents (*.lyx)")),
2475                                          toqstr(fname.onlyFileName()));
2476
2477                 if (result.first == FileDialog::Later)
2478                         return false;
2479
2480                 fname.set(fromqstr(result.second));
2481
2482                 if (fname.empty())
2483                         return false;
2484
2485                 if (!isLyXFileName(fname.absFileName()))
2486                         fname.changeExtension(".lyx");
2487         }
2488
2489         // fname is now the new Buffer location.
2490
2491         // if there is already a Buffer open with this name, we do not want
2492         // to have another one. (the second test makes sure we're not just
2493         // trying to overwrite ourselves, which is fine.)
2494         if (theBufferList().exists(fname) && fname != oldname
2495                   && theBufferList().getBuffer(fname) != &b) {
2496                 docstring const text =
2497                         bformat(_("The file\n%1$s\nis already open in your current session.\n"
2498                             "Please close it before attempting to overwrite it.\n"
2499                             "Do you want to choose a new filename?"),
2500                                 from_utf8(fname.absFileName()));
2501                 int const ret = Alert::prompt(_("Chosen File Already Open"),
2502                         text, 0, 1, _("&Rename"), _("&Cancel"));
2503                 switch (ret) {
2504                 case 0: return renameBuffer(b, docstring(), kind);
2505                 case 1: return false;
2506                 }
2507                 //return false;
2508         }
2509
2510         bool const existsLocal = fname.exists();
2511         bool const existsInVC = LyXVC::fileInVC(fname);
2512         if (existsLocal || existsInVC) {
2513                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2514                 if (kind != LV_WRITE_AS && existsInVC) {
2515                         // renaming to a name that is already in VC
2516                         // would not work
2517                         docstring text = bformat(_("The document %1$s "
2518                                         "is already registered.\n\n"
2519                                         "Do you want to choose a new name?"),
2520                                 file);
2521                         docstring const title = (kind == LV_VC_RENAME) ?
2522                                 _("Rename document?") : _("Copy document?");
2523                         docstring const button = (kind == LV_VC_RENAME) ?
2524                                 _("&Rename") : _("&Copy");
2525                         int const ret = Alert::prompt(title, text, 0, 1,
2526                                 button, _("&Cancel"));
2527                         switch (ret) {
2528                         case 0: return renameBuffer(b, docstring(), kind);
2529                         case 1: return false;
2530                         }
2531                 }
2532
2533                 if (existsLocal) {
2534                         docstring text = bformat(_("The document %1$s "
2535                                         "already exists.\n\n"
2536                                         "Do you want to overwrite that document?"),
2537                                 file);
2538                         int const ret = Alert::prompt(_("Overwrite document?"),
2539                                         text, 0, 2, _("&Overwrite"),
2540                                         _("&Rename"), _("&Cancel"));
2541                         switch (ret) {
2542                         case 0: break;
2543                         case 1: return renameBuffer(b, docstring(), kind);
2544                         case 2: return false;
2545                         }
2546                 }
2547         }
2548
2549         switch (kind) {
2550         case LV_VC_RENAME: {
2551                 string msg = b.lyxvc().rename(fname);
2552                 if (msg.empty())
2553                         return false;
2554                 message(from_utf8(msg));
2555                 break;
2556         }
2557         case LV_VC_COPY: {
2558                 string msg = b.lyxvc().copy(fname);
2559                 if (msg.empty())
2560                         return false;
2561                 message(from_utf8(msg));
2562                 break;
2563         }
2564         case LV_WRITE_AS:
2565                 break;
2566         }
2567         // LyXVC created the file already in case of LV_VC_RENAME or
2568         // LV_VC_COPY, but call saveBuffer() nevertheless to get
2569         // relative paths of included stuff right if we moved e.g. from
2570         // /a/b.lyx to /a/c/b.lyx.
2571
2572         bool const saved = saveBuffer(b, fname);
2573         if (saved)
2574                 b.reload();
2575         return saved;
2576 }
2577
2578
2579 bool GuiView::exportBufferAs(Buffer & b, docstring const & iformat)
2580 {
2581         FileName fname = b.fileName();
2582
2583         FileDialog dlg(qt_("Choose a filename to export the document as"));
2584         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2585
2586         QStringList types;
2587         QString const anyformat = qt_("Guess from extension (*.*)");
2588         types << anyformat;
2589
2590         vector<Format const *> export_formats;
2591         for (Format const & f : theFormats())
2592                 if (f.documentFormat())
2593                         export_formats.push_back(&f);
2594         sort(export_formats.begin(), export_formats.end(), Format::formatSorter);
2595         map<QString, string> fmap;
2596         QString filter;
2597         string ext;
2598         for (Format const * f : export_formats) {
2599                 docstring const loc_prettyname = translateIfPossible(f->prettyname());
2600                 QString const loc_filter = toqstr(bformat(from_ascii("%1$s (*.%2$s)"),
2601                                                      loc_prettyname,
2602                                                      from_ascii(f->extension())));
2603                 types << loc_filter;
2604                 fmap[loc_filter] = f->name();
2605                 if (from_ascii(f->name()) == iformat) {
2606                         filter = loc_filter;
2607                         ext = f->extension();
2608                 }
2609         }
2610         string ofname = fname.onlyFileName();
2611         if (!ext.empty())
2612                 ofname = support::changeExtension(ofname, ext);
2613         FileDialog::Result result =
2614                 dlg.save(toqstr(fname.onlyPath().absFileName()),
2615                          types,
2616                          toqstr(ofname),
2617                          &filter);
2618         if (result.first != FileDialog::Chosen)
2619                 return false;
2620
2621         string fmt_name;
2622         fname.set(fromqstr(result.second));
2623         if (filter == anyformat)
2624                 fmt_name = theFormats().getFormatFromExtension(fname.extension());
2625         else
2626                 fmt_name = fmap[filter];
2627         LYXERR(Debug::FILES, "filter=" << fromqstr(filter)
2628                << ", fmt_name=" << fmt_name << ", fname=" << fname.absFileName());
2629
2630         if (fmt_name.empty() || fname.empty())
2631                 return false;
2632
2633         // fname is now the new Buffer location.
2634         if (FileName(fname).exists()) {
2635                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2636                 docstring text = bformat(_("The document %1$s already "
2637                                            "exists.\n\nDo you want to "
2638                                            "overwrite that document?"),
2639                                          file);
2640                 int const ret = Alert::prompt(_("Overwrite document?"),
2641                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2642                 switch (ret) {
2643                 case 0: break;
2644                 case 1: return exportBufferAs(b, from_ascii(fmt_name));
2645                 case 2: return false;
2646                 }
2647         }
2648
2649         FuncRequest cmd(LFUN_BUFFER_EXPORT, fmt_name + " " + fname.absFileName());
2650         DispatchResult dr;
2651         dispatch(cmd, dr);
2652         return dr.dispatched();
2653 }
2654
2655
2656 bool GuiView::saveBuffer(Buffer & b)
2657 {
2658         return saveBuffer(b, FileName());
2659 }
2660
2661
2662 bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
2663 {
2664         if (workArea(b) && workArea(b)->inDialogMode())
2665                 return true;
2666
2667         if (fn.empty() && b.isUnnamed())
2668                 return renameBuffer(b, docstring());
2669
2670         bool const success = (fn.empty() ? b.save() : b.saveAs(fn));
2671         if (success) {
2672                 theSession().lastFiles().add(b.fileName());
2673                 return true;
2674         }
2675
2676         // Switch to this Buffer.
2677         setBuffer(&b);
2678
2679         // FIXME: we don't tell the user *WHY* the save failed !!
2680         docstring const file = makeDisplayPath(b.absFileName(), 30);
2681         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2682                                    "Do you want to rename the document and "
2683                                    "try again?"), file);
2684         int const ret = Alert::prompt(_("Rename and save?"),
2685                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2686         switch (ret) {
2687         case 0:
2688                 if (!renameBuffer(b, docstring()))
2689                         return false;
2690                 break;
2691         case 1:
2692                 break;
2693         case 2:
2694                 return false;
2695         }
2696
2697         return saveBuffer(b, fn);
2698 }
2699
2700
2701 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2702 {
2703         return closeWorkArea(wa, false);
2704 }
2705
2706
2707 // We only want to close the buffer if it is not visible in other workareas
2708 // of the same view, nor in other views, and if this is not a child
2709 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2710 {
2711         Buffer & buf = wa->bufferView().buffer();
2712
2713         bool last_wa = d.countWorkAreasOf(buf) == 1
2714                 && !inOtherView(buf) && !buf.parent();
2715
2716         bool close_buffer = last_wa;
2717
2718         if (last_wa) {
2719                 if (lyxrc.close_buffer_with_last_view == "yes")
2720                         ; // Nothing to do
2721                 else if (lyxrc.close_buffer_with_last_view == "no")
2722                         close_buffer = false;
2723                 else {
2724                         docstring file;
2725                         if (buf.isUnnamed())
2726                                 file = from_utf8(buf.fileName().onlyFileName());
2727                         else
2728                                 file = buf.fileName().displayName(30);
2729                         docstring const text = bformat(
2730                                 _("Last view on document %1$s is being closed.\n"
2731                                   "Would you like to close or hide the document?\n"
2732                                   "\n"
2733                                   "Hidden documents can be displayed back through\n"
2734                                   "the menu: View->Hidden->...\n"
2735                                   "\n"
2736                                   "To remove this question, set your preference in:\n"
2737                                   "  Tools->Preferences->Look&Feel->UserInterface\n"
2738                                 ), file);
2739                         int ret = Alert::prompt(_("Close or hide document?"),
2740                                 text, 0, 1, _("&Close"), _("&Hide"));
2741                         close_buffer = (ret == 0);
2742                 }
2743         }
2744
2745         return closeWorkArea(wa, close_buffer);
2746 }
2747
2748
2749 bool GuiView::closeBuffer()
2750 {
2751         GuiWorkArea * wa = currentMainWorkArea();
2752         // coverity complained about this
2753         // it seems unnecessary, but perhaps is worth the check
2754         LASSERT(wa, return false);
2755
2756         setCurrentWorkArea(wa);
2757         Buffer & buf = wa->bufferView().buffer();
2758         return closeWorkArea(wa, !buf.parent());
2759 }
2760
2761
2762 void GuiView::writeSession() const {
2763         GuiWorkArea const * active_wa = currentMainWorkArea();
2764         for (int i = 0; i < d.splitter_->count(); ++i) {
2765                 TabWorkArea * twa = d.tabWorkArea(i);
2766                 for (int j = 0; j < twa->count(); ++j) {
2767                         GuiWorkArea * wa = twa->workArea(j);
2768                         Buffer & buf = wa->bufferView().buffer();
2769                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2770                 }
2771         }
2772 }
2773
2774
2775 bool GuiView::closeBufferAll()
2776 {
2777         // Close the workareas in all other views
2778         QList<int> const ids = guiApp->viewIds();
2779         for (int i = 0; i != ids.size(); ++i) {
2780                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2781                         return false;
2782         }
2783
2784         // Close our own workareas
2785         if (!closeWorkAreaAll())
2786                 return false;
2787
2788         // Now close the hidden buffers. We prevent hidden buffers from being
2789         // dirty, so we can just close them.
2790         theBufferList().closeAll();
2791         return true;
2792 }
2793
2794
2795 bool GuiView::closeWorkAreaAll()
2796 {
2797         setCurrentWorkArea(currentMainWorkArea());
2798
2799         // We might be in a situation that there is still a tabWorkArea, but
2800         // there are no tabs anymore. This can happen when we get here after a
2801         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2802         // many TabWorkArea's have no documents anymore.
2803         int empty_twa = 0;
2804
2805         // We have to call count() each time, because it can happen that
2806         // more than one splitter will disappear in one iteration (bug 5998).
2807         while (d.splitter_->count() > empty_twa) {
2808                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2809
2810                 if (twa->count() == 0)
2811                         ++empty_twa;
2812                 else {
2813                         setCurrentWorkArea(twa->currentWorkArea());
2814                         if (!closeTabWorkArea(twa))
2815                                 return false;
2816                 }
2817         }
2818         return true;
2819 }
2820
2821
2822 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2823 {
2824         if (!wa)
2825                 return false;
2826
2827         Buffer & buf = wa->bufferView().buffer();
2828
2829         if (GuiViewPrivate::busyBuffers.contains(&buf)) {
2830                 Alert::warning(_("Close document"),
2831                         _("Document could not be closed because it is being processed by LyX."));
2832                 return false;
2833         }
2834
2835         if (close_buffer)
2836                 return closeBuffer(buf);
2837         else {
2838                 if (!inMultiTabs(wa))
2839                         if (!saveBufferIfNeeded(buf, true))
2840                                 return false;
2841                 removeWorkArea(wa);
2842                 return true;
2843         }
2844 }
2845
2846
2847 bool GuiView::closeBuffer(Buffer & buf)
2848 {
2849         // If we are in a close_event all children will be closed in some time,
2850         // so no need to do it here. This will ensure that the children end up
2851         // in the session file in the correct order. If we close the master
2852         // buffer, we can close or release the child buffers here too.
2853         bool success = true;
2854         if (!closing_) {
2855                 ListOfBuffers clist = buf.getChildren();
2856                 ListOfBuffers::const_iterator it = clist.begin();
2857                 ListOfBuffers::const_iterator const bend = clist.end();
2858                 for (; it != bend; ++it) {
2859                         Buffer * child_buf = *it;
2860                         if (theBufferList().isOthersChild(&buf, child_buf)) {
2861                                 child_buf->setParent(0);
2862                                 continue;
2863                         }
2864
2865                         // FIXME: should we look in other tabworkareas?
2866                         // ANSWER: I don't think so. I've tested, and if the child is
2867                         // open in some other window, it closes without a problem.
2868                         GuiWorkArea * child_wa = workArea(*child_buf);
2869                         if (child_wa) {
2870                                 success = closeWorkArea(child_wa, true);
2871                                 if (!success)
2872                                         break;
2873                         } else {
2874                                 // In this case the child buffer is open but hidden.
2875                                 // It therefore should not (MUST NOT) be dirty!
2876                                 LATTEST(child_buf->isClean());
2877                                 theBufferList().release(child_buf);
2878                         }
2879                 }
2880         }
2881         if (success) {
2882                 // goto bookmark to update bookmark pit.
2883                 // FIXME: we should update only the bookmarks related to this buffer!
2884                 LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2885                 for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2886                         guiApp->gotoBookmark(i+1, false, false);
2887
2888                 if (saveBufferIfNeeded(buf, false)) {
2889                         buf.removeAutosaveFile();
2890                         theBufferList().release(&buf);
2891                         return true;
2892                 }
2893         }
2894         // open all children again to avoid a crash because of dangling
2895         // pointers (bug 6603)
2896         buf.updateBuffer();
2897         return false;
2898 }
2899
2900
2901 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2902 {
2903         while (twa == d.currentTabWorkArea()) {
2904                 twa->setCurrentIndex(twa->count() - 1);
2905
2906                 GuiWorkArea * wa = twa->currentWorkArea();
2907                 Buffer & b = wa->bufferView().buffer();
2908
2909                 // We only want to close the buffer if the same buffer is not visible
2910                 // in another view, and if this is not a child and if we are closing
2911                 // a view (not a tabgroup).
2912                 bool const close_buffer =
2913                         !inOtherView(b) && !b.parent() && closing_;
2914
2915                 if (!closeWorkArea(wa, close_buffer))
2916                         return false;
2917         }
2918         return true;
2919 }
2920
2921
2922 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2923 {
2924         if (buf.isClean() || buf.paragraphs().empty())
2925                 return true;
2926
2927         // Switch to this Buffer.
2928         setBuffer(&buf);
2929
2930         docstring file;
2931         // FIXME: Unicode?
2932         if (buf.isUnnamed())
2933                 file = from_utf8(buf.fileName().onlyFileName());
2934         else
2935                 file = buf.fileName().displayName(30);
2936
2937         // Bring this window to top before asking questions.
2938         raise();
2939         activateWindow();
2940
2941         int ret;
2942         if (hiding && buf.isUnnamed()) {
2943                 docstring const text = bformat(_("The document %1$s has not been "
2944                                                  "saved yet.\n\nDo you want to save "
2945                                                  "the document?"), file);
2946                 ret = Alert::prompt(_("Save new document?"),
2947                         text, 0, 1, _("&Save"), _("&Cancel"));
2948                 if (ret == 1)
2949                         ++ret;
2950         } else {
2951                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2952                         "\n\nDo you want to save the document or discard the changes?"), file);
2953                 ret = Alert::prompt(_("Save changed document?"),
2954                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2955         }
2956
2957         switch (ret) {
2958         case 0:
2959                 if (!saveBuffer(buf))
2960                         return false;
2961                 break;
2962         case 1:
2963                 // If we crash after this we could have no autosave file
2964                 // but I guess this is really improbable (Jug).
2965                 // Sometimes improbable things happen:
2966                 // - see bug http://www.lyx.org/trac/ticket/6587 (ps)
2967                 // buf.removeAutosaveFile();
2968                 if (hiding)
2969                         // revert all changes
2970                         reloadBuffer(buf);
2971                 buf.markClean();
2972                 break;
2973         case 2:
2974                 return false;
2975         }
2976         return true;
2977 }
2978
2979
2980 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2981 {
2982         Buffer & buf = wa->bufferView().buffer();
2983
2984         for (int i = 0; i != d.splitter_->count(); ++i) {
2985                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2986                 if (wa_ && wa_ != wa)
2987                         return true;
2988         }
2989         return inOtherView(buf);
2990 }
2991
2992
2993 bool GuiView::inOtherView(Buffer & buf)
2994 {
2995         QList<int> const ids = guiApp->viewIds();
2996
2997         for (int i = 0; i != ids.size(); ++i) {
2998                 if (id_ == ids[i])
2999                         continue;
3000
3001                 if (guiApp->view(ids[i]).workArea(buf))
3002                         return true;
3003         }
3004         return false;
3005 }
3006
3007
3008 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move)
3009 {
3010         if (!documentBufferView())
3011                 return;
3012
3013         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3014                 Buffer * const curbuf = &documentBufferView()->buffer();
3015                 int nwa = twa->count();
3016                 for (int i = 0; i < nwa; ++i) {
3017                         if (&workArea(i)->bufferView().buffer() == curbuf) {
3018                                 int next_index;
3019                                 if (np == NEXTBUFFER)
3020                                         next_index = (i == nwa - 1 ? 0 : i + 1);
3021                                 else
3022                                         next_index = (i == 0 ? nwa - 1 : i - 1);
3023                                 if (move)
3024                                         twa->moveTab(i, next_index);
3025                                 else
3026                                         setBuffer(&workArea(next_index)->bufferView().buffer());
3027                                 break;
3028                         }
3029                 }
3030         }
3031 }
3032
3033
3034 /// make sure the document is saved
3035 static bool ensureBufferClean(Buffer * buffer)
3036 {
3037         LASSERT(buffer, return false);
3038         if (buffer->isClean() && !buffer->isUnnamed())
3039                 return true;
3040
3041         docstring const file = buffer->fileName().displayName(30);
3042         docstring title;
3043         docstring text;
3044         if (!buffer->isUnnamed()) {
3045                 text = bformat(_("The document %1$s has unsaved "
3046                                                  "changes.\n\nDo you want to save "
3047                                                  "the document?"), file);
3048                 title = _("Save changed document?");
3049
3050         } else {
3051                 text = bformat(_("The document %1$s has not been "
3052                                                  "saved yet.\n\nDo you want to save "
3053                                                  "the document?"), file);
3054                 title = _("Save new document?");
3055         }
3056         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
3057
3058         if (ret == 0)
3059                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
3060
3061         return buffer->isClean() && !buffer->isUnnamed();
3062 }
3063
3064
3065 bool GuiView::reloadBuffer(Buffer & buf)
3066 {
3067         Buffer::ReadStatus status = buf.reload();
3068         return status == Buffer::ReadSuccess;
3069 }
3070
3071
3072 void GuiView::checkExternallyModifiedBuffers()
3073 {
3074         BufferList::iterator bit = theBufferList().begin();
3075         BufferList::iterator const bend = theBufferList().end();
3076         for (; bit != bend; ++bit) {
3077                 Buffer * buf = *bit;
3078                 if (buf->fileName().exists() && buf->isChecksumModified()) {
3079                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
3080                                         " Reload now? Any local changes will be lost."),
3081                                         from_utf8(buf->absFileName()));
3082                         int const ret = Alert::prompt(_("Reload externally changed document?"),
3083                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
3084                         if (!ret)
3085                                 reloadBuffer(*buf);
3086                 }
3087         }
3088 }
3089
3090
3091 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
3092 {
3093         Buffer * buffer = documentBufferView()
3094                 ? &(documentBufferView()->buffer()) : 0;
3095
3096         switch (cmd.action()) {
3097         case LFUN_VC_REGISTER:
3098                 if (!buffer || !ensureBufferClean(buffer))
3099                         break;
3100                 if (!buffer->lyxvc().inUse()) {
3101                         if (buffer->lyxvc().registrer()) {
3102                                 reloadBuffer(*buffer);
3103                                 dr.clearMessageUpdate();
3104                         }
3105                 }
3106                 break;
3107
3108         case LFUN_VC_RENAME:
3109         case LFUN_VC_COPY: {
3110                 if (!buffer || !ensureBufferClean(buffer))
3111                         break;
3112                 if (buffer->lyxvc().inUse() && !buffer->hasReadonlyFlag()) {
3113                         if (buffer->lyxvc().isCheckInWithConfirmation()) {
3114                                 // Some changes are not yet committed.
3115                                 // We test here and not in getStatus(), since
3116                                 // this test is expensive.
3117                                 string log;
3118                                 LyXVC::CommandResult ret =
3119                                         buffer->lyxvc().checkIn(log);
3120                                 dr.setMessage(log);
3121                                 if (ret == LyXVC::ErrorCommand ||
3122                                     ret == LyXVC::VCSuccess)
3123                                         reloadBuffer(*buffer);
3124                                 if (buffer->lyxvc().isCheckInWithConfirmation()) {
3125                                         frontend::Alert::error(
3126                                                 _("Revision control error."),
3127                                                 _("Document could not be checked in."));
3128                                         break;
3129                                 }
3130                         }
3131                         RenameKind const kind = (cmd.action() == LFUN_VC_RENAME) ?
3132                                 LV_VC_RENAME : LV_VC_COPY;
3133                         renameBuffer(*buffer, cmd.argument(), kind);
3134                 }
3135                 break;
3136         }
3137
3138         case LFUN_VC_CHECK_IN:
3139                 if (!buffer || !ensureBufferClean(buffer))
3140                         break;
3141                 if (buffer->lyxvc().inUse() && !buffer->hasReadonlyFlag()) {
3142                         string log;
3143                         LyXVC::CommandResult ret = buffer->lyxvc().checkIn(log);
3144                         dr.setMessage(log);
3145                         // Only skip reloading if the checkin was cancelled or
3146                         // an error occurred before the real checkin VCS command
3147                         // was executed, since the VCS might have changed the
3148                         // file even if it could not checkin successfully.
3149                         if (ret == LyXVC::ErrorCommand || ret == LyXVC::VCSuccess)
3150                                 reloadBuffer(*buffer);
3151                 }
3152                 break;
3153
3154         case LFUN_VC_CHECK_OUT:
3155                 if (!buffer || !ensureBufferClean(buffer))
3156                         break;
3157                 if (buffer->lyxvc().inUse()) {
3158                         dr.setMessage(buffer->lyxvc().checkOut());
3159                         reloadBuffer(*buffer);
3160                 }
3161                 break;
3162
3163         case LFUN_VC_LOCKING_TOGGLE:
3164                 LASSERT(buffer, return);
3165                 if (!ensureBufferClean(buffer) || buffer->hasReadonlyFlag())
3166                         break;
3167                 if (buffer->lyxvc().inUse()) {
3168                         string res = buffer->lyxvc().lockingToggle();
3169                         if (res.empty()) {
3170                                 frontend::Alert::error(_("Revision control error."),
3171                                 _("Error when setting the locking property."));
3172                         } else {
3173                                 dr.setMessage(res);
3174                                 reloadBuffer(*buffer);
3175                         }
3176                 }
3177                 break;
3178
3179         case LFUN_VC_REVERT:
3180                 LASSERT(buffer, return);
3181                 if (buffer->lyxvc().revert()) {
3182                         reloadBuffer(*buffer);
3183                         dr.clearMessageUpdate();
3184                 }
3185                 break;
3186
3187         case LFUN_VC_UNDO_LAST:
3188                 LASSERT(buffer, return);
3189                 buffer->lyxvc().undoLast();
3190                 reloadBuffer(*buffer);
3191                 dr.clearMessageUpdate();
3192                 break;
3193
3194         case LFUN_VC_REPO_UPDATE:
3195                 LASSERT(buffer, return);
3196                 if (ensureBufferClean(buffer)) {
3197                         dr.setMessage(buffer->lyxvc().repoUpdate());
3198                         checkExternallyModifiedBuffers();
3199                 }
3200                 break;
3201
3202         case LFUN_VC_COMMAND: {
3203                 string flag = cmd.getArg(0);
3204                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
3205                         break;
3206                 docstring message;
3207                 if (contains(flag, 'M')) {
3208                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
3209                                 break;
3210                 }
3211                 string path = cmd.getArg(1);
3212                 if (contains(path, "$$p") && buffer)
3213                         path = subst(path, "$$p", buffer->filePath());
3214                 LYXERR(Debug::LYXVC, "Directory: " << path);
3215                 FileName pp(path);
3216                 if (!pp.isReadableDirectory()) {
3217                         lyxerr << _("Directory is not accessible.") << endl;
3218                         break;
3219                 }
3220                 support::PathChanger p(pp);
3221
3222                 string command = cmd.getArg(2);
3223                 if (command.empty())
3224                         break;
3225                 if (buffer) {
3226                         command = subst(command, "$$i", buffer->absFileName());
3227                         command = subst(command, "$$p", buffer->filePath());
3228                 }
3229                 command = subst(command, "$$m", to_utf8(message));
3230                 LYXERR(Debug::LYXVC, "Command: " << command);
3231                 Systemcall one;
3232                 one.startscript(Systemcall::Wait, command);
3233
3234                 if (!buffer)
3235                         break;
3236                 if (contains(flag, 'I'))
3237                         buffer->markDirty();
3238                 if (contains(flag, 'R'))
3239                         reloadBuffer(*buffer);
3240
3241                 break;
3242                 }
3243
3244         case LFUN_VC_COMPARE: {
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                 LATTEST(buffer)
3253
3254                 // f1
3255                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
3256                         break;
3257
3258                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
3259                         f2 = buffer->absFileName();
3260                 } else {
3261                         string rev2 = cmd.getArg(1);
3262                         if (rev2.empty())
3263                                 break;
3264                         // f2
3265                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
3266                                 break;
3267                 }
3268
3269                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
3270                                         f1 << "\n"  << f2 << "\n" );
3271                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
3272                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
3273                 break;
3274         }
3275
3276         default:
3277                 break;
3278         }
3279 }
3280
3281
3282 void GuiView::openChildDocument(string const & fname)
3283 {
3284         LASSERT(documentBufferView(), return);
3285         Buffer & buffer = documentBufferView()->buffer();
3286         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
3287         documentBufferView()->saveBookmark(false);
3288         Buffer * child = 0;
3289         if (theBufferList().exists(filename)) {
3290                 child = theBufferList().getBuffer(filename);
3291                 setBuffer(child);
3292         } else {
3293                 message(bformat(_("Opening child document %1$s..."),
3294                         makeDisplayPath(filename.absFileName())));
3295                 child = loadDocument(filename, false);
3296         }
3297         // Set the parent name of the child document.
3298         // This makes insertion of citations and references in the child work,
3299         // when the target is in the parent or another child document.
3300         if (child)
3301                 child->setParent(&buffer);
3302 }
3303
3304
3305 bool GuiView::goToFileRow(string const & argument)
3306 {
3307         string file_name;
3308         int row;
3309         size_t i = argument.find_last_of(' ');
3310         if (i != string::npos) {
3311                 file_name = os::internal_path(trim(argument.substr(0, i)));
3312                 istringstream is(argument.substr(i + 1));
3313                 is >> row;
3314                 if (is.fail())
3315                         i = string::npos;
3316         }
3317         if (i == string::npos) {
3318                 LYXERR0("Wrong argument: " << argument);
3319                 return false;
3320         }
3321         Buffer * buf = 0;
3322         string const abstmp = package().temp_dir().absFileName();
3323         string const realtmp = package().temp_dir().realPath();
3324         // We have to use os::path_prefix_is() here, instead of
3325         // simply prefixIs(), because the file name comes from
3326         // an external application and may need case adjustment.
3327         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
3328                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
3329                 // Needed by inverse dvi search. If it is a file
3330                 // in tmpdir, call the apropriated function.
3331                 // If tmpdir is a symlink, we may have the real
3332                 // path passed back, so we correct for that.
3333                 if (!prefixIs(file_name, abstmp))
3334                         file_name = subst(file_name, realtmp, abstmp);
3335                 buf = theBufferList().getBufferFromTmp(file_name);
3336         } else {
3337                 // Must replace extension of the file to be .lyx
3338                 // and get full path
3339                 FileName const s = fileSearch(string(),
3340                                                   support::changeExtension(file_name, ".lyx"), "lyx");
3341                 // Either change buffer or load the file
3342                 if (theBufferList().exists(s))
3343                         buf = theBufferList().getBuffer(s);
3344                 else if (s.exists()) {
3345                         buf = loadDocument(s);
3346                         if (!buf)
3347                                 return false;
3348                 } else {
3349                         message(bformat(
3350                                         _("File does not exist: %1$s"),
3351                                         makeDisplayPath(file_name)));
3352                         return false;
3353                 }
3354         }
3355         if (!buf) {
3356                 message(bformat(
3357                         _("No buffer for file: %1$s."),
3358                         makeDisplayPath(file_name))
3359                 );
3360                 return false;
3361         }
3362         setBuffer(buf);
3363         bool success = documentBufferView()->setCursorFromRow(row);
3364         if (!success) {
3365                 LYXERR(Debug::LATEX,
3366                        "setCursorFromRow: invalid position for row " << row);
3367                 frontend::Alert::error(_("Inverse Search Failed"),
3368                                        _("Invalid position requested by inverse search.\n"
3369                                          "You may need to update the viewed document."));
3370         }
3371         return success;
3372 }
3373
3374
3375 void GuiView::toolBarPopup(const QPoint & /*pos*/)
3376 {
3377         QMenu * menu = new QMenu;
3378         menu = guiApp->menus().menu(toqstr("context-toolbars"), * this);
3379         menu->exec(QCursor::pos());
3380 }
3381
3382
3383 template<class T>
3384 Buffer::ExportStatus GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * clone, string const & format)
3385 {
3386         Buffer::ExportStatus const status = func(format);
3387
3388         // the cloning operation will have produced a clone of the entire set of
3389         // documents, starting from the master. so we must delete those.
3390         Buffer * mbuf = const_cast<Buffer *>(clone->masterBuffer());
3391         delete mbuf;
3392         busyBuffers.remove(orig);
3393         return status;
3394 }
3395
3396
3397 Buffer::ExportStatus GuiView::GuiViewPrivate::compileAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3398 {
3399         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3400         return runAndDestroy(lyx::bind(mem_func, clone, _1, true), orig, clone, format);
3401 }
3402
3403
3404 Buffer::ExportStatus GuiView::GuiViewPrivate::exportAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3405 {
3406         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3407         return runAndDestroy(lyx::bind(mem_func, clone, _1, false), orig, clone, format);
3408 }
3409
3410
3411 Buffer::ExportStatus GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3412 {
3413         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &) const = &Buffer::preview;
3414         return runAndDestroy(lyx::bind(mem_func, clone, _1), orig, clone, format);
3415 }
3416
3417
3418 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
3419                            string const & argument,
3420                            Buffer const * used_buffer,
3421                            docstring const & msg,
3422                            Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
3423                            Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
3424                            Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const)
3425 {
3426         if (!used_buffer)
3427                 return false;
3428
3429         string format = argument;
3430         if (format.empty())
3431                 format = used_buffer->params().getDefaultOutputFormat();
3432         processing_format = format;
3433         if (!msg.empty()) {
3434                 progress_->clearMessages();
3435                 gv_->message(msg);
3436         }
3437 #if EXPORT_in_THREAD
3438         GuiViewPrivate::busyBuffers.insert(used_buffer);
3439         Buffer * cloned_buffer = used_buffer->cloneFromMaster();
3440         if (!cloned_buffer) {
3441                 Alert::error(_("Export Error"),
3442                              _("Error cloning the Buffer."));
3443                 return false;
3444         }
3445         QFuture<Buffer::ExportStatus> f = QtConcurrent::run(
3446                                 asyncFunc,
3447                                 used_buffer,
3448                                 cloned_buffer,
3449                                 format);
3450         setPreviewFuture(f);
3451         last_export_format = used_buffer->params().bufferFormat();
3452         (void) syncFunc;
3453         (void) previewFunc;
3454         // We are asynchronous, so we don't know here anything about the success
3455         return true;
3456 #else
3457         Buffer::ExportStatus status;
3458         if (syncFunc) {
3459                 status = (used_buffer->*syncFunc)(format, true);
3460         } else if (previewFunc) {
3461                 status = (used_buffer->*previewFunc)(format);
3462         } else
3463                 return false;
3464         handleExportStatus(gv_, status, format);
3465         (void) asyncFunc;
3466         return (status == Buffer::ExportSuccess
3467                         || status == Buffer::PreviewSuccess);
3468 #endif
3469 }
3470
3471 void GuiView::dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr)
3472 {
3473         BufferView * bv = currentBufferView();
3474         LASSERT(bv, return);
3475
3476         // Let the current BufferView dispatch its own actions.
3477         bv->dispatch(cmd, dr);
3478         if (dr.dispatched())
3479                 return;
3480
3481         // Try with the document BufferView dispatch if any.
3482         BufferView * doc_bv = documentBufferView();
3483         if (doc_bv && doc_bv != bv) {
3484                 doc_bv->dispatch(cmd, dr);
3485                 if (dr.dispatched())
3486                         return;
3487         }
3488
3489         // Then let the current Cursor dispatch its own actions.
3490         bv->cursor().dispatch(cmd);
3491
3492         // update completion. We do it here and not in
3493         // processKeySym to avoid another redraw just for a
3494         // changed inline completion
3495         if (cmd.origin() == FuncRequest::KEYBOARD) {
3496                 if (cmd.action() == LFUN_SELF_INSERT
3497                         || (cmd.action() == LFUN_ERT_INSERT && bv->cursor().inMathed()))
3498                         updateCompletion(bv->cursor(), true, true);
3499                 else if (cmd.action() == LFUN_CHAR_DELETE_BACKWARD)
3500                         updateCompletion(bv->cursor(), false, true);
3501                 else
3502                         updateCompletion(bv->cursor(), false, false);
3503         }
3504
3505         dr = bv->cursor().result();
3506 }
3507
3508
3509 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
3510 {
3511         BufferView * bv = currentBufferView();
3512         // By default we won't need any update.
3513         dr.screenUpdate(Update::None);
3514         // assume cmd will be dispatched
3515         dr.dispatched(true);
3516
3517         Buffer * doc_buffer = documentBufferView()
3518                 ? &(documentBufferView()->buffer()) : 0;
3519
3520         if (cmd.origin() == FuncRequest::TOC) {
3521                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
3522                 // FIXME: do we need to pass a DispatchResult object here?
3523                 toc->doDispatch(bv->cursor(), cmd);
3524                 return;
3525         }
3526
3527         string const argument = to_utf8(cmd.argument());
3528
3529         switch(cmd.action()) {
3530                 case LFUN_BUFFER_CHILD_OPEN:
3531                         openChildDocument(to_utf8(cmd.argument()));
3532                         break;
3533
3534                 case LFUN_BUFFER_IMPORT:
3535                         importDocument(to_utf8(cmd.argument()));
3536                         break;
3537
3538                 case LFUN_BUFFER_EXPORT: {
3539                         if (!doc_buffer)
3540                                 break;
3541                         // GCC only sees strfwd.h when building merged
3542                         if (::lyx::operator==(cmd.argument(), "custom")) {
3543                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
3544                                 break;
3545                         }
3546
3547                         string const dest = cmd.getArg(1);
3548                         FileName target_dir;
3549                         if (!dest.empty() && FileName::isAbsolute(dest))
3550                                 target_dir = FileName(support::onlyPath(dest));
3551                         else
3552                                 target_dir = doc_buffer->fileName().onlyPath();
3553
3554                         string const format = (argument.empty() || argument == "default") ?
3555                                 doc_buffer->params().getDefaultOutputFormat() : argument;
3556
3557                         if ((dest.empty() && doc_buffer->isUnnamed())
3558                             || !target_dir.isDirWritable()) {
3559                                 exportBufferAs(*doc_buffer, from_utf8(format));
3560                                 break;
3561                         }
3562                         /* TODO/Review: Is it a problem to also export the children?
3563                                         See the update_unincluded flag */
3564                         d.asyncBufferProcessing(format,
3565                                                 doc_buffer,
3566                                                 _("Exporting ..."),
3567                                                 &GuiViewPrivate::exportAndDestroy,
3568                                                 &Buffer::doExport,
3569                                                 0);
3570                         // TODO Inform user about success
3571                         break;
3572                 }
3573
3574                 case LFUN_BUFFER_EXPORT_AS: {
3575                         LASSERT(doc_buffer, break);
3576                         docstring f = cmd.argument();
3577                         if (f.empty())
3578                                 f = from_ascii(doc_buffer->params().getDefaultOutputFormat());
3579                         exportBufferAs(*doc_buffer, f);
3580                         break;
3581                 }
3582
3583                 case LFUN_BUFFER_UPDATE: {
3584                         d.asyncBufferProcessing(argument,
3585                                                 doc_buffer,
3586                                                 _("Exporting ..."),
3587                                                 &GuiViewPrivate::compileAndDestroy,
3588                                                 &Buffer::doExport,
3589                                                 0);
3590                         break;
3591                 }
3592                 case LFUN_BUFFER_VIEW: {
3593                         d.asyncBufferProcessing(argument,
3594                                                 doc_buffer,
3595                                                 _("Previewing ..."),
3596                                                 &GuiViewPrivate::previewAndDestroy,
3597                                                 0,
3598                                                 &Buffer::preview);
3599                         break;
3600                 }
3601                 case LFUN_MASTER_BUFFER_UPDATE: {
3602                         d.asyncBufferProcessing(argument,
3603                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3604                                                 docstring(),
3605                                                 &GuiViewPrivate::compileAndDestroy,
3606                                                 &Buffer::doExport,
3607                                                 0);
3608                         break;
3609                 }
3610                 case LFUN_MASTER_BUFFER_VIEW: {
3611                         d.asyncBufferProcessing(argument,
3612                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3613                                                 docstring(),
3614                                                 &GuiViewPrivate::previewAndDestroy,
3615                                                 0, &Buffer::preview);
3616                         break;
3617                 }
3618                 case LFUN_BUFFER_SWITCH: {
3619                         string const file_name = to_utf8(cmd.argument());
3620                         if (!FileName::isAbsolute(file_name)) {
3621                                 dr.setError(true);
3622                                 dr.setMessage(_("Absolute filename expected."));
3623                                 break;
3624                         }
3625
3626                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3627                         if (!buffer) {
3628                                 dr.setError(true);
3629                                 dr.setMessage(_("Document not loaded"));
3630                                 break;
3631                         }
3632
3633                         // Do we open or switch to the buffer in this view ?
3634                         if (workArea(*buffer)
3635                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3636                                 setBuffer(buffer);
3637                                 break;
3638                         }
3639
3640                         // Look for the buffer in other views
3641                         QList<int> const ids = guiApp->viewIds();
3642                         int i = 0;
3643                         for (; i != ids.size(); ++i) {
3644                                 GuiView & gv = guiApp->view(ids[i]);
3645                                 if (gv.workArea(*buffer)) {
3646                                         gv.raise();
3647                                         gv.activateWindow();
3648                                         gv.setFocus();
3649                                         gv.setBuffer(buffer);
3650                                         break;
3651                                 }
3652                         }
3653
3654                         // If necessary, open a new window as a last resort
3655                         if (i == ids.size()) {
3656                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3657                                 lyx::dispatch(cmd);
3658                         }
3659                         break;
3660                 }
3661
3662                 case LFUN_BUFFER_NEXT:
3663                         gotoNextOrPreviousBuffer(NEXTBUFFER, false);
3664                         break;
3665
3666                 case LFUN_BUFFER_MOVE_NEXT:
3667                         gotoNextOrPreviousBuffer(NEXTBUFFER, true);
3668                         break;
3669
3670                 case LFUN_BUFFER_PREVIOUS:
3671                         gotoNextOrPreviousBuffer(PREVBUFFER, false);
3672                         break;
3673
3674                 case LFUN_BUFFER_MOVE_PREVIOUS:
3675                         gotoNextOrPreviousBuffer(PREVBUFFER, true);
3676                         break;
3677
3678                 case LFUN_COMMAND_EXECUTE: {
3679                         command_execute_ = true;
3680                         minibuffer_focus_ = true;
3681                         break;
3682                 }
3683                 case LFUN_DROP_LAYOUTS_CHOICE:
3684                         d.layout_->showPopup();
3685                         break;
3686
3687                 case LFUN_MENU_OPEN:
3688                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3689                                 menu->exec(QCursor::pos());
3690                         break;
3691
3692                 case LFUN_FILE_INSERT:
3693                         insertLyXFile(cmd.argument());
3694                         break;
3695
3696                 case LFUN_FILE_INSERT_PLAINTEXT:
3697                 case LFUN_FILE_INSERT_PLAINTEXT_PARA: {
3698                         string const fname = to_utf8(cmd.argument());
3699                         if (!fname.empty() && !FileName::isAbsolute(fname)) {
3700                                 dr.setMessage(_("Absolute filename expected."));
3701                                 break;
3702                         }
3703
3704                         FileName filename(fname);
3705                         if (fname.empty()) {
3706                                 FileDialog dlg(qt_("Select file to insert"));
3707
3708                                 FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
3709                                         QStringList(qt_("All Files (*)")));
3710
3711                                 if (result.first == FileDialog::Later || result.second.isEmpty()) {
3712                                         dr.setMessage(_("Canceled."));
3713                                         break;
3714                                 }
3715
3716                                 filename.set(fromqstr(result.second));
3717                         }
3718
3719                         if (bv) {
3720                                 FuncRequest const new_cmd(cmd, filename.absoluteFilePath());
3721                                 bv->dispatch(new_cmd, dr);
3722                         }
3723                         break;
3724                 }
3725
3726                 case LFUN_BUFFER_RELOAD: {
3727                         LASSERT(doc_buffer, break);
3728
3729                         int ret = 0;
3730                         if (!doc_buffer->isClean()) {
3731                                 docstring const file =
3732                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3733                                 docstring text = doc_buffer->notifiesExternalModification() ?
3734                                           _("Any changes will be lost. "
3735                                             "Are you sure you want to load the version on disk "
3736                                             "of the document %1$s?")
3737                                         : _("Any changes will be lost. "
3738                                             "Are you sure you want to revert to the saved version "
3739                                             "of the document %1$s?");
3740                                 ret = Alert::prompt(_("Revert to file on disk?"),
3741                                         bformat(text, file), 1, 1, _("&Revert"), _("&Cancel"));
3742                         }
3743
3744                         if (ret == 0) {
3745                                 doc_buffer->markClean();
3746                                 reloadBuffer(*doc_buffer);
3747                                 dr.forceBufferUpdate();
3748                         }
3749                         break;
3750                 }
3751
3752                 case LFUN_BUFFER_WRITE:
3753                         LASSERT(doc_buffer, break);
3754                         saveBuffer(*doc_buffer);
3755                         break;
3756
3757                 case LFUN_BUFFER_WRITE_AS:
3758                         LASSERT(doc_buffer, break);
3759                         renameBuffer(*doc_buffer, cmd.argument());
3760                         break;
3761
3762                 case LFUN_BUFFER_WRITE_ALL: {
3763                         Buffer * first = theBufferList().first();
3764                         if (!first)
3765                                 break;
3766                         message(_("Saving all documents..."));
3767                         // We cannot use a for loop as the buffer list cycles.
3768                         Buffer * b = first;
3769                         do {
3770                                 if (!b->isClean()) {
3771                                         saveBuffer(*b);
3772                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3773                                 }
3774                                 b = theBufferList().next(b);
3775                         } while (b != first);
3776                         dr.setMessage(_("All documents saved."));
3777                         break;
3778                 }
3779
3780                 case LFUN_BUFFER_EXTERNAL_MODIFICATION_CLEAR:
3781                         LASSERT(doc_buffer, break);
3782                         doc_buffer->clearExternalModification();
3783                         break;
3784
3785                 case LFUN_BUFFER_CLOSE:
3786                         closeBuffer();
3787                         break;
3788
3789                 case LFUN_BUFFER_CLOSE_ALL:
3790                         closeBufferAll();
3791                         break;
3792
3793                 case LFUN_TOOLBAR_TOGGLE: {
3794                         string const name = cmd.getArg(0);
3795                         if (GuiToolbar * t = toolbar(name))
3796                                 t->toggle();
3797                         break;
3798                 }
3799
3800                 case LFUN_ICON_SIZE: {
3801                         QSize size = d.iconSize(cmd.argument());
3802                         setIconSize(size);
3803                         dr.setMessage(bformat(_("Icon size set to %1$dx%2$d."),
3804                                                 size.width(), size.height()));
3805                         break;
3806                 }
3807
3808                 case LFUN_DIALOG_UPDATE: {
3809                         string const name = to_utf8(cmd.argument());
3810                         if (name == "prefs" || name == "document")
3811                                 updateDialog(name, string());
3812                         else if (name == "paragraph")
3813                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3814                         else if (currentBufferView()) {
3815                                 Inset * inset = currentBufferView()->editedInset(name);
3816                                 // Can only update a dialog connected to an existing inset
3817                                 if (inset) {
3818                                         // FIXME: get rid of this indirection; GuiView ask the inset
3819                                         // if he is kind enough to update itself...
3820                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3821                                         //FIXME: pass DispatchResult here?
3822                                         inset->dispatch(currentBufferView()->cursor(), fr);
3823                                 }
3824                         }
3825                         break;
3826                 }
3827
3828                 case LFUN_DIALOG_TOGGLE: {
3829                         FuncCode const func_code = isDialogVisible(cmd.getArg(0))
3830                                 ? LFUN_DIALOG_HIDE : LFUN_DIALOG_SHOW;
3831                         dispatch(FuncRequest(func_code, cmd.argument()), dr);
3832                         break;
3833                 }
3834
3835                 case LFUN_DIALOG_DISCONNECT_INSET:
3836                         disconnectDialog(to_utf8(cmd.argument()));
3837                         break;
3838
3839                 case LFUN_DIALOG_HIDE: {
3840                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3841                         break;
3842                 }
3843
3844                 case LFUN_DIALOG_SHOW: {
3845                         string const name = cmd.getArg(0);
3846                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3847
3848                         if (name == "character") {
3849                                 data = freefont2string();
3850                                 if (!data.empty())
3851                                         showDialog("character", data);
3852                         } else if (name == "latexlog") {
3853                                 // getStatus checks that
3854                                 LATTEST(doc_buffer);
3855                                 Buffer::LogType type;
3856                                 string const logfile = doc_buffer->logName(&type);
3857                                 switch (type) {
3858                                 case Buffer::latexlog:
3859                                         data = "latex ";
3860                                         break;
3861                                 case Buffer::buildlog:
3862                                         data = "literate ";
3863                                         break;
3864                                 }
3865                                 data += Lexer::quoteString(logfile);
3866                                 showDialog("log", data);
3867                         } else if (name == "vclog") {
3868                                 // getStatus checks that
3869                                 LATTEST(doc_buffer);
3870                                 string const data = "vc " +
3871                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3872                                 showDialog("log", data);
3873                         } else if (name == "symbols") {
3874                                 data = bv->cursor().getEncoding()->name();
3875                                 if (!data.empty())
3876                                         showDialog("symbols", data);
3877                         // bug 5274
3878                         } else if (name == "prefs" && isFullScreen()) {
3879                                 lfunUiToggle("fullscreen");
3880                                 showDialog("prefs", data);
3881                         } else
3882                                 showDialog(name, data);
3883                         break;
3884                 }
3885
3886                 case LFUN_MESSAGE:
3887                         dr.setMessage(cmd.argument());
3888                         break;
3889
3890                 case LFUN_UI_TOGGLE: {
3891                         string arg = cmd.getArg(0);
3892                         if (!lfunUiToggle(arg)) {
3893                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3894                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3895                         }
3896                         // Make sure the keyboard focus stays in the work area.
3897                         setFocus();
3898                         break;
3899                 }
3900
3901                 case LFUN_VIEW_SPLIT: {
3902                         LASSERT(doc_buffer, break);
3903                         string const orientation = cmd.getArg(0);
3904                         d.splitter_->setOrientation(orientation == "vertical"
3905                                 ? Qt::Vertical : Qt::Horizontal);
3906                         TabWorkArea * twa = addTabWorkArea();
3907                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3908                         setCurrentWorkArea(wa);
3909                         break;
3910                 }
3911                 case LFUN_TAB_GROUP_CLOSE:
3912                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3913                                 closeTabWorkArea(twa);
3914                                 d.current_work_area_ = 0;
3915                                 twa = d.currentTabWorkArea();
3916                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3917                                 if (twa) {
3918                                         // Make sure the work area is up to date.
3919                                         setCurrentWorkArea(twa->currentWorkArea());
3920                                 } else {
3921                                         setCurrentWorkArea(0);
3922                                 }
3923                         }
3924                         break;
3925
3926                 case LFUN_VIEW_CLOSE:
3927                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3928                                 closeWorkArea(twa->currentWorkArea());
3929                                 d.current_work_area_ = 0;
3930                                 twa = d.currentTabWorkArea();
3931                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3932                                 if (twa) {
3933                                         // Make sure the work area is up to date.
3934                                         setCurrentWorkArea(twa->currentWorkArea());
3935                                 } else {
3936                                         setCurrentWorkArea(0);
3937                                 }
3938                         }
3939                         break;
3940
3941                 case LFUN_COMPLETION_INLINE:
3942                         if (d.current_work_area_)
3943                                 d.current_work_area_->completer().showInline();
3944                         break;
3945
3946                 case LFUN_COMPLETION_POPUP:
3947                         if (d.current_work_area_)
3948                                 d.current_work_area_->completer().showPopup();
3949                         break;
3950
3951
3952                 case LFUN_COMPLETE:
3953                         if (d.current_work_area_)
3954                                 d.current_work_area_->completer().tab();
3955                         break;
3956
3957                 case LFUN_COMPLETION_CANCEL:
3958                         if (d.current_work_area_) {
3959                                 if (d.current_work_area_->completer().popupVisible())
3960                                         d.current_work_area_->completer().hidePopup();
3961                                 else
3962                                         d.current_work_area_->completer().hideInline();
3963                         }
3964                         break;
3965
3966                 case LFUN_COMPLETION_ACCEPT:
3967                         if (d.current_work_area_)
3968                                 d.current_work_area_->completer().activate();
3969                         break;
3970
3971                 case LFUN_BUFFER_ZOOM_IN:
3972                 case LFUN_BUFFER_ZOOM_OUT: {
3973                         // use a signed temp to avoid overflow
3974                         int zoom = lyxrc.zoom;
3975                         if (cmd.argument().empty()) {
3976                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3977                                         zoom += 20;
3978                                 else
3979                                         zoom -= 20;
3980                         } else
3981                                 zoom += convert<int>(cmd.argument());
3982
3983                         if (zoom < static_cast<int>(zoom_min_))
3984                                 zoom = zoom_min_;
3985                         lyxrc.zoom = zoom;
3986
3987                         dr.setMessage(bformat(_("Zoom level is now %1$d%"), lyxrc.zoom));
3988
3989                         // The global QPixmapCache is used in GuiPainter to cache text
3990                         // painting so we must reset it.
3991                         QPixmapCache::clear();
3992                         guiApp->fontLoader().update();
3993                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3994                         break;
3995                 }
3996
3997                 case LFUN_VC_REGISTER:
3998                 case LFUN_VC_RENAME:
3999                 case LFUN_VC_COPY:
4000                 case LFUN_VC_CHECK_IN:
4001                 case LFUN_VC_CHECK_OUT:
4002                 case LFUN_VC_REPO_UPDATE:
4003                 case LFUN_VC_LOCKING_TOGGLE:
4004                 case LFUN_VC_REVERT:
4005                 case LFUN_VC_UNDO_LAST:
4006                 case LFUN_VC_COMMAND:
4007                 case LFUN_VC_COMPARE:
4008                         dispatchVC(cmd, dr);
4009                         break;
4010
4011                 case LFUN_SERVER_GOTO_FILE_ROW:
4012                         if(goToFileRow(to_utf8(cmd.argument())))
4013                                 dr.screenUpdate(Update::Force | Update::FitCursor);
4014                         break;
4015
4016                 case LFUN_LYX_ACTIVATE:
4017                         activateWindow();
4018                         break;
4019
4020                 case LFUN_FORWARD_SEARCH: {
4021                         // it seems safe to assume we have a document buffer, since
4022                         // getStatus wants one.
4023                         LATTEST(doc_buffer);
4024                         Buffer const * doc_master = doc_buffer->masterBuffer();
4025                         FileName const path(doc_master->temppath());
4026                         string const texname = doc_master->isChild(doc_buffer)
4027                                 ? DocFileName(changeExtension(
4028                                         doc_buffer->absFileName(),
4029                                                 "tex")).mangledFileName()
4030                                 : doc_buffer->latexName();
4031                         string const fulltexname =
4032                                 support::makeAbsPath(texname, doc_master->temppath()).absFileName();
4033                         string const mastername =
4034                                 removeExtension(doc_master->latexName());
4035                         FileName const dviname(addName(path.absFileName(),
4036                                         addExtension(mastername, "dvi")));
4037                         FileName const pdfname(addName(path.absFileName(),
4038                                         addExtension(mastername, "pdf")));
4039                         bool const have_dvi = dviname.exists();
4040                         bool const have_pdf = pdfname.exists();
4041                         if (!have_dvi && !have_pdf) {
4042                                 dr.setMessage(_("Please, preview the document first."));
4043                                 break;
4044                         }
4045                         string outname = dviname.onlyFileName();
4046                         string command = lyxrc.forward_search_dvi;
4047                         if (!have_dvi || (have_pdf &&
4048                             pdfname.lastModified() > dviname.lastModified())) {
4049                                 outname = pdfname.onlyFileName();
4050                                 command = lyxrc.forward_search_pdf;
4051                         }
4052
4053                         DocIterator cur = bv->cursor();
4054                         int row = doc_buffer->texrow().rowFromDocIterator(cur).first;
4055                         LYXERR(Debug::ACTION, "Forward search: row:" << row
4056                                    << " cur:" << cur);
4057                         if (row == -1 || command.empty()) {
4058                                 dr.setMessage(_("Couldn't proceed."));
4059                                 break;
4060                         }
4061                         string texrow = convert<string>(row);
4062
4063                         command = subst(command, "$$n", texrow);
4064                         command = subst(command, "$$f", fulltexname);
4065                         command = subst(command, "$$t", texname);
4066                         command = subst(command, "$$o", outname);
4067
4068                         PathChanger p(path);
4069                         Systemcall one;
4070                         one.startscript(Systemcall::DontWait, command);
4071                         break;
4072                 }
4073
4074                 case LFUN_SPELLING_CONTINUOUSLY:
4075                         lyxrc.spellcheck_continuously = !lyxrc.spellcheck_continuously;
4076                         dr.screenUpdate(Update::Force);
4077                         break;
4078
4079                 default:
4080                         // The LFUN must be for one of BufferView, Buffer or Cursor;
4081                         // let's try that:
4082                         dispatchToBufferView(cmd, dr);
4083                         break;
4084         }
4085
4086         // Part of automatic menu appearance feature.
4087         if (isFullScreen()) {
4088                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
4089                         menuBar()->hide();
4090         }
4091
4092         // Need to update bv because many LFUNs here might have destroyed it
4093         bv = currentBufferView();
4094
4095         // Clear non-empty selections
4096         // (e.g. from a "char-forward-select" followed by "char-backward-select")
4097         if (bv) {
4098                 Cursor & cur = bv->cursor();
4099                 if ((cur.selection() && cur.selBegin() == cur.selEnd())) {
4100                         cur.clearSelection();
4101                 }
4102         }
4103 }
4104
4105
4106 bool GuiView::lfunUiToggle(string const & ui_component)
4107 {
4108         if (ui_component == "scrollbar") {
4109                 // hide() is of no help
4110                 if (d.current_work_area_->verticalScrollBarPolicy() ==
4111                         Qt::ScrollBarAlwaysOff)
4112
4113                         d.current_work_area_->setVerticalScrollBarPolicy(
4114                                 Qt::ScrollBarAsNeeded);
4115                 else
4116                         d.current_work_area_->setVerticalScrollBarPolicy(
4117                                 Qt::ScrollBarAlwaysOff);
4118         } else if (ui_component == "statusbar") {
4119                 statusBar()->setVisible(!statusBar()->isVisible());
4120         } else if (ui_component == "menubar") {
4121                 menuBar()->setVisible(!menuBar()->isVisible());
4122         } else
4123         if (ui_component == "frame") {
4124                 int l, t, r, b;
4125                 getContentsMargins(&l, &t, &r, &b);
4126                 //are the frames in default state?
4127                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
4128                 if (l == 0) {
4129                         setContentsMargins(-2, -2, -2, -2);
4130                 } else {
4131                         setContentsMargins(0, 0, 0, 0);
4132                 }
4133         } else
4134         if (ui_component == "fullscreen") {
4135                 toggleFullScreen();
4136         } else
4137                 return false;
4138         return true;
4139 }
4140
4141
4142 void GuiView::toggleFullScreen()
4143 {
4144         if (isFullScreen()) {
4145                 for (int i = 0; i != d.splitter_->count(); ++i)
4146                         d.tabWorkArea(i)->setFullScreen(false);
4147                 setContentsMargins(0, 0, 0, 0);
4148                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4149                 restoreLayout();
4150                 menuBar()->show();
4151                 statusBar()->show();
4152         } else {
4153                 // bug 5274
4154                 hideDialogs("prefs", 0);
4155                 for (int i = 0; i != d.splitter_->count(); ++i)
4156                         d.tabWorkArea(i)->setFullScreen(true);
4157                 setContentsMargins(-2, -2, -2, -2);
4158                 saveLayout();
4159                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4160                 if (lyxrc.full_screen_statusbar)
4161                         statusBar()->hide();
4162                 if (lyxrc.full_screen_menubar)
4163                         menuBar()->hide();
4164                 if (lyxrc.full_screen_toolbars) {
4165                         ToolbarMap::iterator end = d.toolbars_.end();
4166                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
4167                                 it->second->hide();
4168                 }
4169         }
4170
4171         // give dialogs like the TOC a chance to adapt
4172         updateDialogs();
4173 }
4174
4175
4176 Buffer const * GuiView::updateInset(Inset const * inset)
4177 {
4178         if (!inset)
4179                 return 0;
4180
4181         Buffer const * inset_buffer = &(inset->buffer());
4182
4183         for (int i = 0; i != d.splitter_->count(); ++i) {
4184                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
4185                 if (!wa)
4186                         continue;
4187                 Buffer const * buffer = &(wa->bufferView().buffer());
4188                 if (inset_buffer == buffer)
4189                         wa->scheduleRedraw();
4190         }
4191         return inset_buffer;
4192 }
4193
4194
4195 void GuiView::restartCursor()
4196 {
4197         /* When we move around, or type, it's nice to be able to see
4198          * the cursor immediately after the keypress.
4199          */
4200         if (d.current_work_area_)
4201                 d.current_work_area_->startBlinkingCursor();
4202
4203         // Take this occasion to update the other GUI elements.
4204         updateDialogs();
4205         updateStatusBar();
4206 }
4207
4208
4209 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
4210 {
4211         if (d.current_work_area_)
4212                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
4213 }
4214
4215 namespace {
4216
4217 // This list should be kept in sync with the list of insets in
4218 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
4219 // dialog should have the same name as the inset.
4220 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
4221 // docs in LyXAction.cpp.
4222
4223 char const * const dialognames[] = {
4224
4225 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
4226 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
4227 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
4228 "href", "include", "index", "index_print", "info", "listings", "label", "line",
4229 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
4230 "nomencl_print", "note", "paragraph", "phantom", "prefs", "ref",
4231 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
4232 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
4233
4234 char const * const * const end_dialognames =
4235         dialognames + (sizeof(dialognames) / sizeof(char *));
4236
4237 class cmpCStr {
4238 public:
4239         cmpCStr(char const * name) : name_(name) {}
4240         bool operator()(char const * other) {
4241                 return strcmp(other, name_) == 0;
4242         }
4243 private:
4244         char const * name_;
4245 };
4246
4247
4248 bool isValidName(string const & name)
4249 {
4250         return find_if(dialognames, end_dialognames,
4251                                 cmpCStr(name.c_str())) != end_dialognames;
4252 }
4253
4254 } // namespace anon
4255
4256
4257 void GuiView::resetDialogs()
4258 {
4259         // Make sure that no LFUN uses any GuiView.
4260         guiApp->setCurrentView(0);
4261         saveLayout();
4262         saveUISettings();
4263         menuBar()->clear();
4264         constructToolbars();
4265         guiApp->menus().fillMenuBar(menuBar(), this, false);
4266         d.layout_->updateContents(true);
4267         // Now update controls with current buffer.
4268         guiApp->setCurrentView(this);
4269         restoreLayout();
4270         restartCursor();
4271 }
4272
4273
4274 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
4275 {
4276         if (!isValidName(name))
4277                 return 0;
4278
4279         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
4280
4281         if (it != d.dialogs_.end()) {
4282                 if (hide_it)
4283                         it->second->hideView();
4284                 return it->second.get();
4285         }
4286
4287         Dialog * dialog = build(name);
4288         d.dialogs_[name].reset(dialog);
4289         if (lyxrc.allow_geometry_session)
4290                 dialog->restoreSession();
4291         if (hide_it)
4292                 dialog->hideView();
4293         return dialog;
4294 }
4295
4296
4297 void GuiView::showDialog(string const & name, string const & data,
4298         Inset * inset)
4299 {
4300         triggerShowDialog(toqstr(name), toqstr(data), inset);
4301 }
4302
4303
4304 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
4305         Inset * inset)
4306 {
4307         if (d.in_show_)
4308                 return;
4309
4310         const string name = fromqstr(qname);
4311         const string data = fromqstr(qdata);
4312
4313         d.in_show_ = true;
4314         try {
4315                 Dialog * dialog = findOrBuild(name, false);
4316                 if (dialog) {
4317                         bool const visible = dialog->isVisibleView();
4318                         dialog->showData(data);
4319                         if (inset && currentBufferView())
4320                                 currentBufferView()->editInset(name, inset);
4321                         // We only set the focus to the new dialog if it was not yet
4322                         // visible in order not to change the existing previous behaviour
4323                         if (visible) {
4324                                 // activateWindow is needed for floating dockviews
4325                                 dialog->asQWidget()->raise();
4326                                 dialog->asQWidget()->activateWindow();
4327                                 dialog->asQWidget()->setFocus();
4328                         }
4329                 }
4330         }
4331         catch (ExceptionMessage const & ex) {
4332                 d.in_show_ = false;
4333                 throw ex;
4334         }
4335         d.in_show_ = false;
4336 }
4337
4338
4339 bool GuiView::isDialogVisible(string const & name) const
4340 {
4341         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4342         if (it == d.dialogs_.end())
4343                 return false;
4344         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
4345 }
4346
4347
4348 void GuiView::hideDialog(string const & name, Inset * inset)
4349 {
4350         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4351         if (it == d.dialogs_.end())
4352                 return;
4353
4354         if (inset) {
4355                 if (!currentBufferView())
4356                         return;
4357                 if (inset != currentBufferView()->editedInset(name))
4358                         return;
4359         }
4360
4361         Dialog * const dialog = it->second.get();
4362         if (dialog->isVisibleView())
4363                 dialog->hideView();
4364         if (currentBufferView())
4365                 currentBufferView()->editInset(name, 0);
4366 }
4367
4368
4369 void GuiView::disconnectDialog(string const & name)
4370 {
4371         if (!isValidName(name))
4372                 return;
4373         if (currentBufferView())
4374                 currentBufferView()->editInset(name, 0);
4375 }
4376
4377
4378 void GuiView::hideAll() const
4379 {
4380         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4381         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4382
4383         for(; it != end; ++it)
4384                 it->second->hideView();
4385 }
4386
4387
4388 void GuiView::updateDialogs()
4389 {
4390         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4391         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4392
4393         for(; it != end; ++it) {
4394                 Dialog * dialog = it->second.get();
4395                 if (dialog) {
4396                         if (dialog->needBufferOpen() && !documentBufferView())
4397                                 hideDialog(fromqstr(dialog->name()), 0);
4398                         else if (dialog->isVisibleView())
4399                                 dialog->checkStatus();
4400                 }
4401         }
4402         updateToolbars();
4403         updateLayoutList();
4404 }
4405
4406 Dialog * createDialog(GuiView & lv, string const & name);
4407
4408 // will be replaced by a proper factory...
4409 Dialog * createGuiAbout(GuiView & lv);
4410 Dialog * createGuiBibtex(GuiView & lv);
4411 Dialog * createGuiChanges(GuiView & lv);
4412 Dialog * createGuiCharacter(GuiView & lv);
4413 Dialog * createGuiCitation(GuiView & lv);
4414 Dialog * createGuiCompare(GuiView & lv);
4415 Dialog * createGuiCompareHistory(GuiView & lv);
4416 Dialog * createGuiDelimiter(GuiView & lv);
4417 Dialog * createGuiDocument(GuiView & lv);
4418 Dialog * createGuiErrorList(GuiView & lv);
4419 Dialog * createGuiExternal(GuiView & lv);
4420 Dialog * createGuiGraphics(GuiView & lv);
4421 Dialog * createGuiInclude(GuiView & lv);
4422 Dialog * createGuiIndex(GuiView & lv);
4423 Dialog * createGuiListings(GuiView & lv);
4424 Dialog * createGuiLog(GuiView & lv);
4425 Dialog * createGuiMathMatrix(GuiView & lv);
4426 Dialog * createGuiNote(GuiView & lv);
4427 Dialog * createGuiParagraph(GuiView & lv);
4428 Dialog * createGuiPhantom(GuiView & lv);
4429 Dialog * createGuiPreferences(GuiView & lv);
4430 Dialog * createGuiPrint(GuiView & lv);
4431 Dialog * createGuiPrintindex(GuiView & lv);
4432 Dialog * createGuiRef(GuiView & lv);
4433 Dialog * createGuiSearch(GuiView & lv);
4434 Dialog * createGuiSearchAdv(GuiView & lv);
4435 Dialog * createGuiSendTo(GuiView & lv);
4436 Dialog * createGuiShowFile(GuiView & lv);
4437 Dialog * createGuiSpellchecker(GuiView & lv);
4438 Dialog * createGuiSymbols(GuiView & lv);
4439 Dialog * createGuiTabularCreate(GuiView & lv);
4440 Dialog * createGuiTexInfo(GuiView & lv);
4441 Dialog * createGuiToc(GuiView & lv);
4442 Dialog * createGuiThesaurus(GuiView & lv);
4443 Dialog * createGuiViewSource(GuiView & lv);
4444 Dialog * createGuiWrap(GuiView & lv);
4445 Dialog * createGuiProgressView(GuiView & lv);
4446
4447
4448
4449 Dialog * GuiView::build(string const & name)
4450 {
4451         LASSERT(isValidName(name), return 0);
4452
4453         Dialog * dialog = createDialog(*this, name);
4454         if (dialog)
4455                 return dialog;
4456
4457         if (name == "aboutlyx")
4458                 return createGuiAbout(*this);
4459         if (name == "bibtex")
4460                 return createGuiBibtex(*this);
4461         if (name == "changes")
4462                 return createGuiChanges(*this);
4463         if (name == "character")
4464                 return createGuiCharacter(*this);
4465         if (name == "citation")
4466                 return createGuiCitation(*this);
4467         if (name == "compare")
4468                 return createGuiCompare(*this);
4469         if (name == "comparehistory")
4470                 return createGuiCompareHistory(*this);
4471         if (name == "document")
4472                 return createGuiDocument(*this);
4473         if (name == "errorlist")
4474                 return createGuiErrorList(*this);
4475         if (name == "external")
4476                 return createGuiExternal(*this);
4477         if (name == "file")
4478                 return createGuiShowFile(*this);
4479         if (name == "findreplace")
4480                 return createGuiSearch(*this);
4481         if (name == "findreplaceadv")
4482                 return createGuiSearchAdv(*this);
4483         if (name == "graphics")
4484                 return createGuiGraphics(*this);
4485         if (name == "include")
4486                 return createGuiInclude(*this);
4487         if (name == "index")
4488                 return createGuiIndex(*this);
4489         if (name == "index_print")
4490                 return createGuiPrintindex(*this);
4491         if (name == "listings")
4492                 return createGuiListings(*this);
4493         if (name == "log")
4494                 return createGuiLog(*this);
4495         if (name == "mathdelimiter")
4496                 return createGuiDelimiter(*this);
4497         if (name == "mathmatrix")
4498                 return createGuiMathMatrix(*this);
4499         if (name == "note")
4500                 return createGuiNote(*this);
4501         if (name == "paragraph")
4502                 return createGuiParagraph(*this);
4503         if (name == "phantom")
4504                 return createGuiPhantom(*this);
4505         if (name == "prefs")
4506                 return createGuiPreferences(*this);
4507         if (name == "ref")
4508                 return createGuiRef(*this);
4509         if (name == "sendto")
4510                 return createGuiSendTo(*this);
4511         if (name == "spellchecker")
4512                 return createGuiSpellchecker(*this);
4513         if (name == "symbols")
4514                 return createGuiSymbols(*this);
4515         if (name == "tabularcreate")
4516                 return createGuiTabularCreate(*this);
4517         if (name == "texinfo")
4518                 return createGuiTexInfo(*this);
4519         if (name == "thesaurus")
4520                 return createGuiThesaurus(*this);
4521         if (name == "toc")
4522                 return createGuiToc(*this);
4523         if (name == "view-source")
4524                 return createGuiViewSource(*this);
4525         if (name == "wrap")
4526                 return createGuiWrap(*this);
4527         if (name == "progress")
4528                 return createGuiProgressView(*this);
4529
4530         return 0;
4531 }
4532
4533
4534 } // namespace frontend
4535 } // namespace lyx
4536
4537 #include "moc_GuiView.cpp"