src/frontends/qt/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 "DialogFactory.h"
  19 #include "DispatchResult.h"
  20 #include "FileDialog.h"
  21 #include "FindAndReplace.h"
  22 #include "FontLoader.h"
  23 #include "GuiApplication.h"
  24 #include "GuiClickableLabel.h"
  25 #include "GuiCompleter.h"
  26 #include "GuiFontMetrics.h"
  27 #include "GuiKeySymbol.h"
  28 #include "GuiToc.h"
  29 #include "GuiToolbar.h"
  30 #include "GuiWorkArea.h"
  31 #include "GuiProgress.h"
  32 #include "LayoutBox.h"
  33 #include "Menus.h"
  34 #include "TocModel.h"
  35
  36 #include "qt_helpers.h"
  37 #include "support/filetools.h"
  38
  39 #include "frontends/alert.h"
  40 #include "frontends/KeySymbol.h"
  41
  42 #include "buffer_funcs.h"
  43 #include "Buffer.h"
  44 #include "BufferList.h"
  45 #include "BufferParams.h"
  46 #include "BufferView.h"
  47 #include "Compare.h"
  48 #include "Converter.h"
  49 #include "Cursor.h"
  50 #include "CutAndPaste.h"
  51 #include "Encoding.h"
  52 #include "ErrorList.h"
  53 #include "Format.h"
  54 #include "FuncStatus.h"
  55 #include "FuncRequest.h"
  56 #include "KeySymbol.h"
  57 #include "Language.h"
  58 #include "LayoutFile.h"
  59 #include "Lexer.h"
  60 #include "LyXAction.h"
  61 #include "LyX.h"
  62 #include "LyXRC.h"
  63 #include "LyXVC.h"
  64 #include "Paragraph.h"
  65 #include "SpellChecker.h"
  66 #include "Session.h"
  67 #include "TexRow.h"
  68 #include "Text.h"
  69 #include "Toolbars.h"
  70 #include "version.h"
  71
  72 #include "graphics/PreviewLoader.h"
  73
  74 #include "support/convert.h"
  75 #include "support/debug.h"
  76 #include "support/ExceptionMessage.h"
  77 #include "support/FileName.h"
  78 #include "support/gettext.h"
  79 #include "support/ForkedCalls.h"
  80 #include "support/lassert.h"
  81 #include "support/lstrings.h"
  82 #include "support/os.h"
  83 #include "support/Package.h"
  84 #include "support/PathChanger.h"
  85 #include "support/Systemcall.h"
  86 #include "support/Timeout.h"
  87 #include "support/ProgressInterface.h"
  88
  89 #include <QAction>
  90 #include <QApplication>
  91 #include <QCloseEvent>
  92 #include <QDragEnterEvent>
  93 #include <QDropEvent>
  94 #include <QFuture>
  95 #include <QFutureWatcher>
  96 #include <QGroupBox>
  97 #include <QLabel>
  98 #include <QList>
  99 #include <QMenu>
 100 #include <QMenuBar>
 101 #include <QMimeData>
 102 #include <QPainter>
 103 #include <QPixmap>
 104 #include <QPoint>
 105 #include <QSettings>
 106 #include <QShowEvent>
 107 #include <QSlider>
 108 #include <QSplitter>
 109 #include <QStackedWidget>
 110 #include <QStatusBar>
 111 #include <QSvgRenderer>
 112 #include <QtConcurrentRun>
 113 #include <QTimer>
 114 #include <QUrl>
 115 #include <QWindowStateChangeEvent>
 116 #include <QGestureEvent>
 117 #include <QPinchGesture>
 118
 119
 120 // sync with GuiAlert.cpp
 121 #define EXPORT_in_THREAD 1
 122
 123
 124 #include "support/bind.h"
 125
 126 #include <sstream>
 127
 128 #ifdef HAVE_SYS_TIME_H
 129 # include <sys/time.h>
 130 #endif
 131 #ifdef HAVE_UNISTD_H
 132 # include <unistd.h>
 133 #endif
 134
 135
 136 using namespace std;
 137 using namespace lyx::support;
 138
 139 namespace lyx {
 140
 141 using support::addExtension;
 142 using support::changeExtension;
 143 using support::removeExtension;
 144
 145 namespace frontend {
 146
 147 namespace {
 148
 149 class BackgroundWidget : public QWidget
 150 {
 151 public:
 152         BackgroundWidget(int width, int height)
 153                 : width_(width), height_(height)
 154         {
 155                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 156                 if (!lyxrc.show_banner)
 157                         return;
 158                 /// The text to be written on top of the pixmap
 159                 QString const htext = qt_("The Document\nProcessor[[welcome banner]]");
 160                 QString const htextsize = qt_("1.0[[possibly scale the welcome banner text size]]");
 161                 /// The text to be written on top of the pixmap
 162                 QString const text = lyx_version ?
 163                         qt_("version ") + lyx_version : qt_("unknown version");
 164                 QString imagedir = "images/";
 165                 FileName fname = imageLibFileSearch(imagedir, "banner", "svgz");
 166                 QSvgRenderer svgRenderer(toqstr(fname.absFileName()));
 167                 if (svgRenderer.isValid()) {
 168                         splash_ = QPixmap(splashSize());
 169                         QPainter painter(&splash_);
 170                         svgRenderer.render(&painter);
 171                         splash_.setDevicePixelRatio(pixelRatio());
 172                 } else {
 173                         splash_ = getPixmap("images/", "banner", "png");
 174                 }
 175
 176                 QPainter pain(&splash_);
 177                 pain.setPen(QColor(0, 0, 0));
 178                 qreal const fsize = fontSize();
 179                 bool ok;
 180                 int hfsize = 20;
 181                 qreal locscale = htextsize.toFloat(&ok);
 182                 if (!ok)
 183                         locscale = 1.0;
 184                 QPointF const position = textPosition(false);
 185                 QPointF const hposition = textPosition(true);
 186                 QRectF const hrect(hposition, splashSize());
 187                 LYXERR(Debug::GUI,
 188                         "widget pixel ratio: " << pixelRatio() <<
 189                         " splash pixel ratio: " << splashPixelRatio() <<
 190                         " version text size,position: " << fsize << "@" << position.x() << "+" << position.y());
 191                 QFont font;
 192                 // The font used to display the version info
 193                 font.setStyleHint(QFont::SansSerif);
 194                 font.setWeight(QFont::Bold);
 195                 font.setPointSizeF(fsize);
 196                 pain.setFont(font);
 197                 pain.drawText(position, text);
 198                 // The font used to display the version info
 199                 font.setStyleHint(QFont::SansSerif);
 200                 font.setWeight(QFont::Normal);
 201                 font.setPointSizeF(hfsize);
 202                 // Check how long the logo gets with the current font
 203                 // and adapt if the font is running wider than what
 204                 // we assume
 205                 GuiFontMetrics fm(font);
 206                 // Split the title into lines to measure the longest line
 207                 // in the current l7n.
 208                 QStringList titlesegs = htext.split('\n');
 209                 int wline = 0;
 210                 int hline = fm.maxHeight();
 211                 for (QString const & seg : titlesegs) {
 212                         if (fm.width(seg) > wline)
 213                                 wline = fm.width(seg);
 214                 }
 215                 // The longest line in the reference font (for English)
 216                 // is 180. Calculate scale factor from that.
 217                 double const wscale = wline > 0 ? (180.0 / wline) : 1;
 218                 // Now do the same for the height (necessary for condensed fonts)
 219                 double const hscale = (34.0 / hline);
 220                 // take the lower of the two scale factors.
 221                 double const scale = min(wscale, hscale);
 222                 // Now rescale. Also consider l7n's offset factor.
 223                 font.setPointSizeF(hfsize * scale * locscale);
 224
 225                 pain.setFont(font);
 226                 pain.drawText(hrect, Qt::AlignLeft, htext);
 227                 setFocusPolicy(Qt::StrongFocus);
 228         }
 229
 230         void paintEvent(QPaintEvent *) override
 231         {
 232                 int const w = width_;
 233                 int const h = height_;
 234                 int const x = (width() - w) / 2;
 235                 int const y = (height() - h) / 2;
 236                 LYXERR(Debug::GUI,
 237                         "widget pixel ratio: " << pixelRatio() <<
 238                         " splash pixel ratio: " << splashPixelRatio() <<
 239                         " paint pixmap: " << w << "x" << h << "@" << x << "+" << y);
 240                 QPainter pain(this);
 241                 pain.drawPixmap(x, y, w, h, splash_);
 242         }
 243
 244         void keyPressEvent(QKeyEvent * ev) override
 245         {
 246                 KeySymbol sym;
 247                 setKeySymbol(&sym, ev);
 248                 if (sym.isOK()) {
 249                         guiApp->processKeySym(sym, q_key_state(ev->modifiers()));
 250                         ev->accept();
 251                 } else {
 252                         ev->ignore();
 253                 }
 254         }
 255
 256 private:
 257         QPixmap splash_;
 258         int const width_;
 259         int const height_;
 260
 261         /// Current ratio between physical pixels and device-independent pixels
 262         double pixelRatio() const {
 263                 return qt_scale_factor * devicePixelRatio();
 264         }
 265
 266         qreal fontSize() const {
 267                 return toqstr(lyxrc.font_sizes[NORMAL_SIZE]).toDouble();
 268         }
 269
 270         QPointF textPosition(bool const heading) const {
 271                 return heading ? QPointF(width_/2 - 18, height_/2 - 45)
 272                                : QPointF(width_/2 - 18, height_/2 + 45);
 273         }
 274
 275         QSize splashSize() const {
 276                 return QSize(
 277                         static_cast<unsigned int>(width_ * pixelRatio()),
 278                         static_cast<unsigned int>(height_ * pixelRatio()));
 279         }
 280
 281         /// Ratio between physical pixels and device-independent pixels of splash image
 282         double splashPixelRatio() const {
 283                 return splash_.devicePixelRatio();
 284         }
 285 };
 286
 287
 288 /// Toolbar store providing access to individual toolbars by name.
 289 typedef map<string, GuiToolbar *> ToolbarMap;
 290
 291 typedef shared_ptr<Dialog> DialogPtr;
 292
 293 } // namespace
 294
 295
 296 class GuiView::GuiViewPrivate
 297 {
 298         /// noncopyable
 299         GuiViewPrivate(GuiViewPrivate const &);
 300         void operator=(GuiViewPrivate const &);
 301 public:
 302         GuiViewPrivate(GuiView * gv)
 303                 : gv_(gv), current_work_area_(nullptr), current_main_work_area_(nullptr),
 304                 layout_(nullptr), autosave_timeout_(5000),
 305                 in_show_(false)
 306         {
 307                 // hardcode here the platform specific icon size
 308                 smallIconSize = 16;  // scaling problems
 309                 normalIconSize = 20; // ok, default if iconsize.png is missing
 310                 bigIconSize = 26;       // better for some math icons
 311                 hugeIconSize = 32;      // better for hires displays
 312                 giantIconSize = 48;
 313
 314                 // if it exists, use width of iconsize.png as normal size
 315                 QString const dir = toqstr(addPath("images", lyxrc.icon_set));
 316                 FileName const fn = lyx::libFileSearch(dir, "iconsize.png");
 317                 if (!fn.empty()) {
 318                         QImage image(toqstr(fn.absFileName()));
 319                         if (image.width() < int(smallIconSize))
 320                                 normalIconSize = smallIconSize;
 321                         else if (image.width() > int(giantIconSize))
 322                                 normalIconSize = giantIconSize;
 323                         else
 324                                 normalIconSize = image.width();
 325                 }
 326
 327                 splitter_ = new QSplitter;
 328                 bg_widget_ = new BackgroundWidget(400, 250);
 329                 stack_widget_ = new QStackedWidget;
 330                 stack_widget_->addWidget(bg_widget_);
 331                 stack_widget_->addWidget(splitter_);
 332                 setBackground();
 333
 334                 // TODO cleanup, remove the singleton, handle multiple Windows?
 335                 progress_ = ProgressInterface::instance();
 336                 if (!dynamic_cast<GuiProgress*>(progress_)) {
 337                         progress_ = new GuiProgress;  // TODO who deletes it
 338                         ProgressInterface::setInstance(progress_);
 339                 }
 340                 QObject::connect(
 341                                 dynamic_cast<GuiProgress*>(progress_),
 342                                 SIGNAL(updateStatusBarMessage(QString const&)),
 343                                 gv, SLOT(updateStatusBarMessage(QString const&)));
 344                 QObject::connect(
 345                                 dynamic_cast<GuiProgress*>(progress_),
 346                                 SIGNAL(clearMessageText()),
 347                                 gv, SLOT(clearMessageText()));
 348         }
 349
 350         ~GuiViewPrivate()
 351         {
 352                 delete splitter_;
 353                 delete bg_widget_;
 354                 delete stack_widget_;
 355         }
 356
 357         void setBackground()
 358         {
 359                 stack_widget_->setCurrentWidget(bg_widget_);
 360                 bg_widget_->setUpdatesEnabled(true);
 361                 bg_widget_->setFocus();
 362         }
 363
 364         int tabWorkAreaCount()
 365         {
 366                 return splitter_->count();
 367         }
 368
 369         TabWorkArea * tabWorkArea(int i)
 370         {
 371                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 372         }
 373
 374         TabWorkArea * currentTabWorkArea()
 375         {
 376                 int areas = tabWorkAreaCount();
 377                 if (areas == 1)
 378                         // The first TabWorkArea is always the first one, if any.
 379                         return tabWorkArea(0);
 380
 381                 for (int i = 0; i != areas;  ++i) {
 382                         TabWorkArea * twa = tabWorkArea(i);
 383                         if (current_main_work_area_ == twa->currentWorkArea())
 384                                 return twa;
 385                 }
 386
 387                 // None has the focus so we just take the first one.
 388                 return tabWorkArea(0);
 389         }
 390
 391         int countWorkAreasOf(Buffer & buf)
 392         {
 393                 int areas = tabWorkAreaCount();
 394                 int count = 0;
 395                 for (int i = 0; i != areas;  ++i) {
 396                         TabWorkArea * twa = tabWorkArea(i);
 397                         if (twa->workArea(buf))
 398                                 ++count;
 399                 }
 400                 return count;
 401         }
 402
 403         void setPreviewFuture(QFuture<Buffer::ExportStatus> const & f)
 404         {
 405                 if (processing_thread_watcher_.isRunning()) {
 406                         // we prefer to cancel this preview in order to keep a snappy
 407                         // interface.
 408                         return;
 409                 }
 410                 processing_thread_watcher_.setFuture(f);
 411         }
 412
 413         QSize iconSize(docstring const & icon_size)
 414         {
 415                 unsigned int size;
 416                 if (icon_size == "small")
 417                         size = smallIconSize;
 418                 else if (icon_size == "normal")
 419                         size = normalIconSize;
 420                 else if (icon_size == "big")
 421                         size = bigIconSize;
 422                 else if (icon_size == "huge")
 423                         size = hugeIconSize;
 424                 else if (icon_size == "giant")
 425                         size = giantIconSize;
 426                 else
 427                         size = icon_size.empty() ? normalIconSize : convert<int>(icon_size);
 428
 429                 if (size < smallIconSize)
 430                         size = smallIconSize;
 431
 432                 return QSize(size, size);
 433         }
 434
 435         QSize iconSize(QString const & icon_size)
 436         {
 437                 return iconSize(qstring_to_ucs4(icon_size));
 438         }
 439
 440         string & iconSize(QSize const & qsize)
 441         {
 442                 LATTEST(qsize.width() == qsize.height());
 443
 444                 static string icon_size;
 445
 446                 unsigned int size = qsize.width();
 447
 448                 if (size < smallIconSize)
 449                         size = smallIconSize;
 450
 451                 if (size == smallIconSize)
 452                         icon_size = "small";
 453                 else if (size == normalIconSize)
 454                         icon_size = "normal";
 455                 else if (size == bigIconSize)
 456                         icon_size = "big";
 457                 else if (size == hugeIconSize)
 458                         icon_size = "huge";
 459                 else if (size == giantIconSize)
 460                         icon_size = "giant";
 461                 else
 462                         icon_size = convert<string>(size);
 463
 464                 return icon_size;
 465         }
 466
 467         static Buffer::ExportStatus previewAndDestroy(Buffer const * orig,
 468                         Buffer * buffer, string const & format);
 469         static Buffer::ExportStatus exportAndDestroy(Buffer const * orig,
 470                         Buffer * buffer, string const & format);
 471         static Buffer::ExportStatus compileAndDestroy(Buffer const * orig,
 472                         Buffer * buffer, string const & format);
 473         static docstring autosaveAndDestroy(Buffer const * orig, Buffer * buffer);
 474
 475         template<class T>
 476         static Buffer::ExportStatus runAndDestroy(const T& func,
 477                         Buffer const * orig, Buffer * buffer, string const & format);
 478
 479         // TODO syncFunc/previewFunc: use bind
 480         bool asyncBufferProcessing(string const & argument,
 481                                    Buffer const * used_buffer,
 482                                    docstring const & msg,
 483                                    Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
 484                                    Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
 485                                    Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const,
 486                                    bool allow_async, bool use_tmpdir = false);
 487
 488         QVector<GuiWorkArea*> guiWorkAreas();
 489
 490 public:
 491         GuiView * gv_;
 492         GuiWorkArea * current_work_area_;
 493         GuiWorkArea * current_main_work_area_;
 494         QSplitter * splitter_;
 495         QStackedWidget * stack_widget_;
 496         BackgroundWidget * bg_widget_;
 497         /// view's toolbars
 498         ToolbarMap toolbars_;
 499         ProgressInterface* progress_;
 500         /// The main layout box.
 501         /**
 502          * \warning Don't Delete! The layout box is actually owned by
 503          * whichever toolbar contains it. All the GuiView class needs is a
 504          * means of accessing it.
 505          *
 506          * FIXME: replace that with a proper model so that we are not limited
 507          * to only one dialog.
 508          */
 509         LayoutBox * layout_;
 510
 511         ///
 512         map<string, DialogPtr> dialogs_;
 513
 514         ///
 515         QTimer statusbar_timer_;
 516         QTimer statusbar_stats_timer_;
 517         /// auto-saving of buffers
 518         Timeout autosave_timeout_;
 519
 520         ///
 521         TocModels toc_models_;
 522
 523         ///
 524         QFutureWatcher<docstring> autosave_watcher_;
 525         QFutureWatcher<Buffer::ExportStatus> processing_thread_watcher_;
 526         ///
 527         string last_export_format;
 528         string processing_format;
 529
 530         static QSet<Buffer const *> busyBuffers;
 531
 532         unsigned int smallIconSize;
 533         unsigned int normalIconSize;
 534         unsigned int bigIconSize;
 535         unsigned int hugeIconSize;
 536         unsigned int giantIconSize;
 537
 538         /// flag against a race condition due to multiclicks, see bug #1119
 539         bool in_show_;
 540
 541         // Timers for statistic updates in buffer
 542         /// Current time left to the nearest info update
 543         int time_to_update = 1000;
 544         ///Basic step for timer in ms. Basically reaction time for short selections
 545         int const timer_rate = 500;
 546         /// Real stats updates infrequently. First they take long time for big buffers, second
 547         /// they are visible for fast-repeat keyboards even for mid documents.
 548         int const default_stats_rate = 5000;
 549         /// Detection of new selection, so we can react fast
 550         bool already_in_selection_ = false;
 551         /// Maximum size of "short" selection for which we can update with faster timer_rate
 552         int const max_sel_chars = 5000;
 553
 554 };
 555
 556 QSet<Buffer const *> GuiView::GuiViewPrivate::busyBuffers;
 557
 558
 559 GuiView::GuiView(int id)
 560         : d(*new GuiViewPrivate(this)), id_(id), closing_(false), busy_(0),
 561           command_execute_(false), minibuffer_focus_(false), word_count_enabled_(true),
 562           char_count_enabled_(true),  char_nb_count_enabled_(false),
 563           toolbarsMovable_(true), devel_mode_(false)
 564 {
 565         connect(this, SIGNAL(bufferViewChanged()),
 566                 this, SLOT(onBufferViewChanged()));
 567
 568         // GuiToolbars *must* be initialised before the menu bar.
 569         setIconSize(QSize(d.normalIconSize, d.normalIconSize)); // at least on Mac the default is 32 otherwise, which is huge
 570         constructToolbars();
 571
 572         // set ourself as the current view. This is needed for the menu bar
 573         // filling, at least for the static special menu item on Mac. Otherwise
 574         // they are greyed out.
 575         guiApp->setCurrentView(this);
 576
 577         // Fill up the menu bar.
 578         guiApp->menus().fillMenuBar(menuBar(), this, true);
 579
 580         setCentralWidget(d.stack_widget_);
 581
 582         // Start autosave timer
 583         if (lyxrc.autosave) {
 584                 // The connection is closed when this is destroyed.
 585                 d.autosave_timeout_.timeout.connect([this](){ autoSave();});
 586                 d.autosave_timeout_.setTimeout(lyxrc.autosave * 1000);
 587                 d.autosave_timeout_.start();
 588         }
 589         connect(&d.statusbar_timer_, SIGNAL(timeout()),
 590                 this, SLOT(clearMessage()));
 591         connect(&d.statusbar_stats_timer_, SIGNAL(timeout()),
 592                 this, SLOT(showStats()));
 593         d.statusbar_stats_timer_.start(d.timer_rate);
 594
 595         // We don't want to keep the window in memory if it is closed.
 596         setAttribute(Qt::WA_DeleteOnClose, true);
 597
 598 #if !(defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)) && !defined(Q_OS_MAC)
 599         // assign an icon to main form. We do not do it under Qt/Win or Qt/Mac,
 600         // since the icon is provided in the application bundle. We use a themed
 601         // version when available and use the bundled one as fallback.
 602         setWindowIcon(QIcon::fromTheme("lyx", getPixmap("images/", "lyx", "svg,png")));
 603
 604 #endif
 605         resetWindowTitle();
 606
 607         // use tabbed dock area for multiple docks
 608         // (such as "source" and "messages")
 609         setDockOptions(QMainWindow::ForceTabbedDocks);
 610
 611 #ifdef Q_OS_MAC
 612         // use document mode tabs on docks
 613         setDocumentMode(true);
 614 #endif
 615
 616         // For Drag&Drop.
 617         setAcceptDrops(true);
 618
 619         QFontMetrics const fm(statusBar()->fontMetrics());
 620         int const iconheight = max(int(d.normalIconSize), fm.height());
 621         QSize const iconsize(iconheight, iconheight);
 622
 623         // add busy indicator to statusbar
 624         search_mode mode = theGuiApp()->imageSearchMode();
 625         QString fn = toqstr(lyx::libFileSearch("images", "busy", "svgz", mode).absFileName());
 626         PressableSvgWidget * busySVG = new PressableSvgWidget(fn);
 627         statusBar()->addPermanentWidget(busySVG);
 628         // make busy indicator square with 5px margins
 629         busySVG->setMaximumSize(busySVG->height() - 5, busySVG->height() - 5);
 630         busySVG->hide();
 631         // Add cancel button
 632         QPixmap ps = QIcon(getPixmap("images/", "process-stop", "svgz")).pixmap(iconsize);
 633         GuiClickableLabel * processStop = new GuiClickableLabel(statusBar());
 634         processStop->setPixmap(ps);
 635         processStop->setToolTip(qt_("Click here to stop export/output process"));
 636         processStop->hide();
 637         statusBar()->addPermanentWidget(processStop);
 638
 639         connect(&d.processing_thread_watcher_, SIGNAL(started()),
 640                 busySVG, SLOT(show()));
 641         connect(&d.processing_thread_watcher_, SIGNAL(finished()),
 642                 busySVG, SLOT(hide()));
 643         connect(&d.processing_thread_watcher_, SIGNAL(started()),
 644                 processStop, SLOT(show()));
 645         connect(&d.processing_thread_watcher_, SIGNAL(finished()),
 646                 processStop, SLOT(hide()));
 647         connect(processStop, SIGNAL(pressed()), this, SLOT(checkCancelBackground()));
 648
 649         connect(this, SIGNAL(scriptKilled()), busySVG, SLOT(hide()));
 650         connect(this, SIGNAL(scriptKilled()), processStop, SLOT(hide()));
 651
 652         stat_counts_ = new GuiClickableLabel(statusBar());
 653         stat_counts_->setAlignment(Qt::AlignCenter);
 654         stat_counts_->setFrameStyle(QFrame::StyledPanel);
 655         stat_counts_->hide();
 656         statusBar()->addPermanentWidget(stat_counts_);
 657
 658         connect(stat_counts_, SIGNAL(clicked()), this, SLOT(statsPressed()));
 659
 660         zoom_slider_ = new QSlider(Qt::Horizontal, statusBar());
 661         // Small size slider for macOS to prevent the status bar from enlarging
 662         zoom_slider_->setAttribute(Qt::WA_MacSmallSize);
 663 #if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
 664         zoom_slider_->setFixedWidth(fm.horizontalAdvance('x') * 15);
 665 #else
 666         zoom_slider_->setFixedWidth(fm.width('x') * 15);
 667 #endif
 668         // Make the defaultZoom center
 669         zoom_slider_->setRange(10, (lyxrc.defaultZoom * 2) - 10);
 670         // Initialize proper zoom value
 671         QSettings settings;
 672         zoom_ratio_ = settings.value("zoom_ratio", 1.0).toDouble();
 673         // Actual zoom value: default zoom + fractional offset
 674         int zoom = (int)(lyxrc.defaultZoom * zoom_ratio_);
 675         zoom = min(max(zoom, zoom_min_), zoom_max_);
 676         zoom_slider_->setValue(zoom);
 677         zoom_slider_->setToolTip(qt_("Workarea zoom level. Drag, use Ctrl-+/- or Shift-Mousewheel to adjust."));
 678
 679         // Buttons to change zoom stepwise
 680 #if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
 681         QSize s(fm.horizontalAdvance('+'), fm.height());
 682 #else
 683         QSize s(fm.width('+'), fm.height());
 684 #endif
 685         zoom_in_ = new GuiClickableLabel(statusBar());
 686         zoom_in_->setText("+");
 687         zoom_in_->setFixedSize(s);
 688         zoom_in_->setAlignment(Qt::AlignCenter);
 689         zoom_out_ = new GuiClickableLabel(statusBar());
 690         zoom_out_->setText(QString(QChar(0x2212)));
 691         zoom_out_->setFixedSize(s);
 692         zoom_out_->setAlignment(Qt::AlignCenter);
 693
 694         statusBar()->addPermanentWidget(zoom_out_);
 695         zoom_out_->setEnabled(currentBufferView());
 696         statusBar()->addPermanentWidget(zoom_slider_);
 697         zoom_slider_->setEnabled(currentBufferView());
 698         zoom_in_->setEnabled(currentBufferView());
 699         statusBar()->addPermanentWidget(zoom_in_);
 700
 701         connect(zoom_slider_, SIGNAL(sliderMoved(int)), this, SLOT(zoomSliderMoved(int)));
 702         connect(zoom_slider_, SIGNAL(valueChanged(int)), this, SLOT(zoomValueChanged(int)));
 703         connect(this, SIGNAL(currentZoomChanged(int)), zoom_slider_, SLOT(setValue(int)));
 704         connect(zoom_in_, SIGNAL(clicked()), this, SLOT(zoomInPressed()));
 705         connect(zoom_out_, SIGNAL(clicked()), this, SLOT(zoomOutPressed()));
 706
 707         // QPalette palette = statusBar()->palette();
 708
 709         zoom_value_ = new GuiClickableLabel(statusBar());
 710         connect(zoom_value_, SIGNAL(pressed()), this, SLOT(showZoomContextMenu()));
 711         // zoom_value_->setPalette(palette);
 712         zoom_value_->setForegroundRole(statusBar()->foregroundRole());
 713         zoom_value_->setFixedHeight(fm.height());
 714 #if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
 715         zoom_value_->setMinimumWidth(fm.horizontalAdvance("444\%"));
 716 #else
 717         zoom_value_->setMinimumWidth(fm.width("444\%"));
 718 #endif
 719         zoom_value_->setAlignment(Qt::AlignCenter);
 720         zoom_value_->setText(toqstr(bformat(_("[[ZOOM]]%1$d%"), zoom)));
 721         statusBar()->addPermanentWidget(zoom_value_);
 722         zoom_value_->setEnabled(currentBufferView());
 723
 724         statusBar()->setContextMenuPolicy(Qt::CustomContextMenu);
 725         connect(statusBar(), SIGNAL(customContextMenuRequested(QPoint)),
 726                 this, SLOT(showStatusBarContextMenu()));
 727
 728         // enable pinch to zoom
 729         grabGesture(Qt::PinchGesture);
 730
 731         QPixmap shellescape = QIcon(getPixmap("images/", "emblem-shellescape", "svgz,png")).pixmap(iconsize);
 732         shell_escape_ = new QLabel(statusBar());
 733         shell_escape_->setPixmap(shellescape);
 734         shell_escape_->setAlignment(Qt::AlignCenter);
 735         shell_escape_->setContextMenuPolicy(Qt::CustomContextMenu);
 736         shell_escape_->setToolTip(qt_("WARNING: LaTeX is allowed to execute "
 737                                       "external commands for this document. "
 738                                       "Right click to change."));
 739         SEMenu * menu = new SEMenu(this);
 740         connect(shell_escape_, SIGNAL(customContextMenuRequested(QPoint)),
 741                 menu, SLOT(showMenu(QPoint)));
 742         shell_escape_->hide();
 743         statusBar()->addPermanentWidget(shell_escape_);
 744
 745         QPixmap readonly = QIcon(getPixmap("images/", "emblem-readonly", "svgz,png")).pixmap(iconsize);
 746         read_only_ = new QLabel(statusBar());
 747         read_only_->setPixmap(readonly);
 748         read_only_->setAlignment(Qt::AlignCenter);
 749         read_only_->hide();
 750         statusBar()->addPermanentWidget(read_only_);
 751
 752         version_control_ = new QLabel(statusBar());
 753         version_control_->setAlignment(Qt::AlignCenter);
 754         version_control_->setFrameStyle(QFrame::StyledPanel);
 755         version_control_->hide();
 756         statusBar()->addPermanentWidget(version_control_);
 757
 758         statusBar()->setSizeGripEnabled(true);
 759         updateStatusBar();
 760
 761         connect(&d.autosave_watcher_, SIGNAL(finished()), this,
 762                 SLOT(autoSaveThreadFinished()));
 763
 764         connect(&d.processing_thread_watcher_, SIGNAL(started()), this,
 765                 SLOT(processingThreadStarted()));
 766         connect(&d.processing_thread_watcher_, SIGNAL(finished()), this,
 767                 SLOT(processingThreadFinished()));
 768
 769         connect(this, SIGNAL(triggerShowDialog(QString const &, QString const &, Inset *)),
 770                 SLOT(doShowDialog(QString const &, QString const &, Inset *)));
 771
 772         // Forbid too small unresizable window because it can happen
 773         // with some window manager under X11.
 774         setMinimumSize(300, 200);
 775
 776         if (lyxrc.allow_geometry_session) {
 777                 // Now take care of session management.
 778                 if (restoreLayout())
 779                         return;
 780         }
 781
 782         // no session handling, default to a sane size.
 783         setGeometry(50, 50, 690, 510);
 784         initToolbars();
 785
 786         // clear session data if any.
 787         settings.remove("views");
 788 }
 789
 790
 791 GuiView::~GuiView()
 792 {
 793         delete &d;
 794 }
 795
 796
 797 void GuiView::disableShellEscape()
 798 {
 799         BufferView * bv = documentBufferView();
 800         if (!bv)
 801                 return;
 802         theSession().shellescapeFiles().remove(bv->buffer().absFileName());
 803         bv->buffer().params().shell_escape = false;
 804         bv->processUpdateFlags(Update::Force);
 805 }
 806
 807
 808 void GuiView::checkCancelBackground()
 809 {
 810         docstring const ttl = _("Cancel Export?");
 811         docstring const msg = _("Do you want to cancel the background export process?");
 812         int const ret =
 813                 Alert::prompt(ttl, msg, 1, 1,
 814                         _("&Cancel export"), _("Co&ntinue"));
 815         if (ret == 0) {
 816                 cancelExport();
 817         }
 818 }
 819
 820 void GuiView::statsPressed()
 821 {
 822         DispatchResult dr;
 823         dispatch(FuncRequest(LFUN_STATISTICS), dr);
 824 }
 825
 826 void GuiView::zoomSliderMoved(int value)
 827 {
 828         DispatchResult dr;
 829         dispatch(FuncRequest(LFUN_BUFFER_ZOOM, convert<string>(value)), dr);
 830         scheduleRedrawWorkAreas();
 831         zoom_value_->setText(toqstr(bformat(_("[[ZOOM]]%1$d%"), value)));
 832 }
 833
 834
 835 void GuiView::zoomValueChanged(int value)
 836 {
 837         if (value != lyxrc.currentZoom)
 838                 zoomSliderMoved(value);
 839 }
 840
 841
 842 void GuiView::zoomInPressed()
 843 {
 844         DispatchResult dr;
 845         dispatch(FuncRequest(LFUN_BUFFER_ZOOM_IN), dr);
 846         scheduleRedrawWorkAreas();
 847 }
 848
 849
 850 void GuiView::zoomOutPressed()
 851 {
 852         DispatchResult dr;
 853         dispatch(FuncRequest(LFUN_BUFFER_ZOOM_OUT), dr);
 854         scheduleRedrawWorkAreas();
 855 }
 856
 857
 858 void GuiView::showZoomContextMenu()
 859 {
 860         QMenu * menu = guiApp->menus().menu(toqstr("context-zoom"), * this);
 861         if (!menu)
 862                 return;
 863         menu->exec(QCursor::pos());
 864 }
 865
 866
 867 void GuiView::showStatusBarContextMenu()
 868 {
 869         QMenu * menu = guiApp->menus().menu(toqstr("context-statusbar"), * this);
 870         if (!menu)
 871                 return;
 872         menu->exec(QCursor::pos());
 873 }
 874
 875
 876 void GuiView::scheduleRedrawWorkAreas()
 877 {
 878         for (int i = 0; i < d.tabWorkAreaCount(); i++) {
 879                 TabWorkArea* ta = d.tabWorkArea(i);
 880                 for (int u = 0; u < ta->count(); u++) {
 881                         ta->workArea(u)->scheduleRedraw(true);
 882                 }
 883         }
 884 }
 885
 886
 887 QVector<GuiWorkArea*> GuiView::GuiViewPrivate::guiWorkAreas()
 888 {
 889         QVector<GuiWorkArea*> areas;
 890         for (int i = 0; i < tabWorkAreaCount(); i++) {
 891                 TabWorkArea* ta = tabWorkArea(i);
 892                 for (int u = 0; u < ta->count(); u++) {
 893                         areas << ta->workArea(u);
 894                 }
 895         }
 896         return areas;
 897 }
 898
 899 static void handleExportStatus(GuiView * view, Buffer::ExportStatus status,
 900         string const & format)
 901 {
 902         docstring const fmt = translateIfPossible(theFormats().prettyName(format));
 903         docstring msg;
 904         switch (status) {
 905         case Buffer::ExportSuccess:
 906                 msg = bformat(_("Successful export to format: %1$s"), fmt);
 907                 break;
 908         case Buffer::ExportCancel:
 909                 msg = _("Document export cancelled.");
 910                 break;
 911         case Buffer::ExportError:
 912         case Buffer::ExportNoPathToFormat:
 913         case Buffer::ExportTexPathHasSpaces:
 914         case Buffer::ExportConverterError:
 915                 msg = bformat(_("Error while exporting format: %1$s"), fmt);
 916                 break;
 917         case Buffer::PreviewSuccess:
 918                 msg = bformat(_("Successful preview of format: %1$s"), fmt);
 919                 break;
 920         case Buffer::PreviewError:
 921                 msg = bformat(_("Error while previewing format: %1$s"), fmt);
 922                 break;
 923         case Buffer::ExportKilled:
 924                 msg = bformat(_("Conversion cancelled while previewing format: %1$s"), fmt);
 925                 break;
 926         }
 927         view->message(msg);
 928 }
 929
 930
 931 void GuiView::processingThreadStarted()
 932 {
 933 }
 934
 935
 936 void GuiView::processingThreadFinished()
 937 {
 938         QFutureWatcher<Buffer::ExportStatus> const * watcher =
 939                 static_cast<QFutureWatcher<Buffer::ExportStatus> const *>(sender());
 940
 941         Buffer::ExportStatus const status = watcher->result();
 942         handleExportStatus(this, status, d.processing_format);
 943
 944         updateToolbars();
 945         BufferView const * const bv = currentBufferView();
 946         if (bv && !bv->buffer().errorList("Export").empty()) {
 947                 errors("Export");
 948                 return;
 949         }
 950
 951         bool const error = (status != Buffer::ExportSuccess &&
 952                             status != Buffer::PreviewSuccess &&
 953                             status != Buffer::ExportCancel);
 954         if (error && bv) {
 955                 ErrorList & el = bv->buffer().errorList(d.last_export_format);
 956                 // at this point, we do not know if buffer-view or
 957                 // master-buffer-view was called. If there was an export error,
 958                 // and the current buffer's error log is empty, we guess that
 959                 // it must be master-buffer-view that was called so we set
 960                 // from_master=true.
 961                 errors(d.last_export_format, el.empty());
 962         }
 963 }
 964
 965
 966 void GuiView::autoSaveThreadFinished()
 967 {
 968         QFutureWatcher<docstring> const * watcher =
 969                 static_cast<QFutureWatcher<docstring> const *>(sender());
 970         message(watcher->result());
 971         updateToolbars();
 972 }
 973
 974
 975 void GuiView::saveLayout() const
 976 {
 977         QSettings settings;
 978         settings.setValue("zoom_ratio", zoom_ratio_);
 979         settings.setValue("devel_mode", devel_mode_);
 980         settings.beginGroup("views");
 981         settings.beginGroup(QString::number(id_));
 982         if (guiApp->platformName() == "xcb") {
 983                 settings.setValue("pos", pos());
 984                 settings.setValue("size", size());
 985         } else
 986                 settings.setValue("geometry", saveGeometry());
 987         settings.setValue("layout", saveState(0));
 988         settings.setValue("icon_size", toqstr(d.iconSize(iconSize())));
 989         settings.setValue("zoom_value_visible", zoom_value_->isVisible());
 990         settings.setValue("zoom_slider_visible", zoom_slider_->isVisible());
 991         settings.setValue("word_count_enabled", word_count_enabled_);
 992         settings.setValue("char_count_enabled", char_count_enabled_);
 993         settings.setValue("char_nb_count_enabled", char_nb_count_enabled_);
 994 }
 995
 996
 997 void GuiView::saveUISettings() const
 998 {
 999         QSettings settings;
1000
1001         // Save the toolbar private states
1002         for (auto const & tb_p : d.toolbars_)
1003                 tb_p.second->saveSession(settings);
1004         // Now take care of all other dialogs
1005         for (auto const & dlg_p : d.dialogs_)
1006                 dlg_p.second->saveSession(settings);
1007 }
1008
1009
1010 void GuiView::setCurrentZoom(const int v)
1011 {
1012         lyxrc.currentZoom = v;
1013         zoom_value_->setText(toqstr(bformat(_("[[ZOOM]]%1$d%"), v)));
1014         Q_EMIT currentZoomChanged(v);
1015 }
1016
1017
1018 bool GuiView::restoreLayout()
1019 {
1020         QSettings settings;
1021         zoom_ratio_ = settings.value("zoom_ratio", 1.0).toDouble();
1022         // Actual zoom value: default zoom + fractional offset
1023         int zoom = (int)(lyxrc.defaultZoom * zoom_ratio_);
1024         zoom = min(max(zoom, zoom_min_), zoom_max_);
1025         setCurrentZoom(zoom);
1026         devel_mode_ = settings.value("devel_mode", devel_mode_).toBool();
1027         settings.beginGroup("views");
1028         settings.beginGroup(QString::number(id_));
1029         QString const icon_key = "icon_size";
1030         if (!settings.contains(icon_key))
1031                 return false;
1032
1033         //code below is skipped when when ~/.config/LyX is (re)created
1034         setIconSize(d.iconSize(settings.value(icon_key).toString()));
1035
1036         zoom_value_->setVisible(settings.value("zoom_value_visible", true).toBool());
1037
1038         bool const show_zoom_slider = settings.value("zoom_slider_visible", true).toBool();
1039         zoom_slider_->setVisible(show_zoom_slider);
1040         zoom_in_->setVisible(show_zoom_slider);
1041         zoom_out_->setVisible(show_zoom_slider);
1042
1043         word_count_enabled_ = settings.value("word_count_enabled", true).toBool();
1044         char_count_enabled_ = settings.value("char_count_enabled", true).toBool();
1045         char_nb_count_enabled_ = settings.value("char_nb_count_enabled", true).toBool();
1046         stat_counts_->setVisible(word_count_enabled_ || char_count_enabled_ || char_nb_count_enabled_);
1047
1048         if (guiApp->platformName() == "xcb") {
1049                 QPoint pos = settings.value("pos", QPoint(50, 50)).toPoint();
1050                 QSize size = settings.value("size", QSize(690, 510)).toSize();
1051                 resize(size);
1052                 move(pos);
1053         } else {
1054                 // Work-around for bug #6034: the window ends up in an undetermined
1055                 // state when trying to restore a maximized window when it is
1056                 // already maximized.
1057                 if (!(windowState() & Qt::WindowMaximized))
1058                         if (!restoreGeometry(settings.value("geometry").toByteArray()))
1059                                 setGeometry(50, 50, 690, 510);
1060         }
1061
1062         // Make sure layout is correctly oriented.
1063         setLayoutDirection(qApp->layoutDirection());
1064
1065         // Allow the toc and view-source dock widget to be restored if needed.
1066         Dialog * dialog;
1067         if ((dialog = findOrBuild("toc", true)))
1068                 // see bug 5082. At least setup title and enabled state.
1069                 // Visibility will be adjusted by restoreState below.
1070                 dialog->prepareView();
1071         if ((dialog = findOrBuild("view-source", true)))
1072                 dialog->prepareView();
1073         if ((dialog = findOrBuild("progress", true)))
1074                 dialog->prepareView();
1075
1076         if (!restoreState(settings.value("layout").toByteArray(), 0))
1077                 initToolbars();
1078
1079         // init the toolbars that have not been restored
1080         for (auto const & tb_p : guiApp->toolbars()) {
1081                 GuiToolbar * tb = toolbar(tb_p.name);
1082                 if (tb && !tb->isRestored())
1083                         initToolbar(tb_p.name);
1084         }
1085
1086         // update lock (all) toolbars positions
1087         updateLockToolbars();
1088
1089         updateDialogs();
1090         return true;
1091 }
1092
1093
1094 GuiToolbar * GuiView::toolbar(string const & name)
1095 {
1096         ToolbarMap::iterator it = d.toolbars_.find(name);
1097         if (it != d.toolbars_.end())
1098                 return it->second;
1099
1100         LYXERR(Debug::GUI, "Toolbar::display: no toolbar named " << name);
1101         return nullptr;
1102 }
1103
1104
1105 void GuiView::updateLockToolbars()
1106 {
1107         toolbarsMovable_ = false;
1108         for (ToolbarInfo const & info : guiApp->toolbars()) {
1109                 GuiToolbar * tb = toolbar(info.name);
1110                 if (tb && tb->isMovable())
1111                         toolbarsMovable_ = true;
1112         }
1113 #if QT_VERSION >= 0x050200
1114         // set unified mac toolbars only when not movable as recommended:
1115         // https://doc.qt.io/qt-5/qmainwindow.html#unifiedTitleAndToolBarOnMac-prop
1116         setUnifiedTitleAndToolBarOnMac(!toolbarsMovable_);
1117 #endif
1118 }
1119
1120
1121 void GuiView::constructToolbars()
1122 {
1123         for (auto const & tb_p : d.toolbars_)
1124                 delete tb_p.second;
1125         d.toolbars_.clear();
1126
1127         // I don't like doing this here, but the standard toolbar
1128         // destroys this object when it's destroyed itself (vfr)
1129         d.layout_ = new LayoutBox(*this);
1130         d.stack_widget_->addWidget(d.layout_);
1131         d.layout_->move(0,0);
1132
1133         // extracts the toolbars from the backend
1134         for (ToolbarInfo const & inf : guiApp->toolbars())
1135                 d.toolbars_[inf.name] =  new GuiToolbar(inf, *this);
1136
1137         DynamicMenuButton::resetIconCache();
1138 }
1139
1140
1141 void GuiView::initToolbars()
1142 {
1143         // extracts the toolbars from the backend
1144         for (ToolbarInfo const & inf : guiApp->toolbars())
1145                 initToolbar(inf.name);
1146 }
1147
1148
1149 void GuiView::initToolbar(string const & name)
1150 {
1151         GuiToolbar * tb = toolbar(name);
1152         if (!tb)
1153                 return;
1154         int const visibility = guiApp->toolbars().defaultVisibility(name);
1155         bool newline = !(visibility & Toolbars::SAMEROW);
1156         tb->setVisible(false);
1157         tb->setVisibility(visibility);
1158
1159         if (visibility & Toolbars::TOP) {
1160                 if (newline)
1161                         addToolBarBreak(Qt::TopToolBarArea);
1162                 addToolBar(Qt::TopToolBarArea, tb);
1163         }
1164
1165         if (visibility & Toolbars::BOTTOM) {
1166                 if (newline)
1167                         addToolBarBreak(Qt::BottomToolBarArea);
1168                 addToolBar(Qt::BottomToolBarArea, tb);
1169         }
1170
1171         if (visibility & Toolbars::LEFT) {
1172                 if (newline)
1173                         addToolBarBreak(Qt::LeftToolBarArea);
1174                 addToolBar(Qt::LeftToolBarArea, tb);
1175         }
1176
1177         if (visibility & Toolbars::RIGHT) {
1178                 if (newline)
1179                         addToolBarBreak(Qt::RightToolBarArea);
1180                 addToolBar(Qt::RightToolBarArea, tb);
1181         }
1182
1183         if (visibility & Toolbars::ON)
1184                 tb->setVisible(true);
1185
1186         tb->setMovable(true);
1187 }
1188
1189
1190 TocModels & GuiView::tocModels()
1191 {
1192         return d.toc_models_;
1193 }
1194
1195
1196 void GuiView::setFocus()
1197 {
1198         LYXERR(Debug::DEBUG, "GuiView::setFocus()" << this);
1199         QMainWindow::setFocus();
1200 }
1201
1202
1203 bool GuiView::hasFocus() const
1204 {
1205         if (currentWorkArea())
1206                 return currentWorkArea()->hasFocus();
1207         if (currentMainWorkArea())
1208                 return currentMainWorkArea()->hasFocus();
1209         return d.bg_widget_->hasFocus();
1210 }
1211
1212
1213 void GuiView::focusInEvent(QFocusEvent * e)
1214 {
1215         LYXERR(Debug::DEBUG, "GuiView::focusInEvent()" << this);
1216         QMainWindow::focusInEvent(e);
1217         // Make sure guiApp points to the correct view.
1218         guiApp->setCurrentView(this);
1219         if (currentWorkArea())
1220                 currentWorkArea()->setFocus();
1221         else if (currentMainWorkArea())
1222                 currentMainWorkArea()->setFocus();
1223         else
1224                 d.bg_widget_->setFocus();
1225 }
1226
1227
1228 void GuiView::showEvent(QShowEvent * e)
1229 {
1230         LYXERR(Debug::GUI, "Passed Geometry "
1231                 << size().height() << "x" << size().width()
1232                 << "+" << pos().x() << "+" << pos().y());
1233
1234         if (d.splitter_->count() == 0)
1235                 // No work area, switch to the background widget.
1236                 d.setBackground();
1237
1238         updateToolbars();
1239         QMainWindow::showEvent(e);
1240 }
1241
1242
1243 bool GuiView::closeScheduled()
1244 {
1245         closing_ = true;
1246         return close();
1247 }
1248
1249
1250 bool GuiView::prepareAllBuffersForLogout()
1251 {
1252         Buffer * first = theBufferList().first();
1253         if (!first)
1254                 return true;
1255
1256         // First, iterate over all buffers and ask the users if unsaved
1257         // changes should be saved.
1258         // We cannot use a for loop as the buffer list cycles.
1259         Buffer * b = first;
1260         do {
1261                 if (!saveBufferIfNeeded(*b, false))
1262                         return false;
1263                 b = theBufferList().next(b);
1264         } while (b != first);
1265
1266         // Next, save session state
1267         // When a view/window was closed before without quitting LyX, there
1268         // are already entries in the lastOpened list.
1269         theSession().lastOpened().clear();
1270         writeSession();
1271
1272         return true;
1273 }
1274
1275
1276 /** Destroy only all tabbed WorkAreas. Destruction of other WorkAreas
1277  ** is responsibility of the container (e.g., dialog)
1278  **/
1279 void GuiView::closeEvent(QCloseEvent * close_event)
1280 {
1281         LYXERR(Debug::DEBUG, "GuiView::closeEvent()");
1282
1283         if (!GuiViewPrivate::busyBuffers.isEmpty()) {
1284                 Alert::warning(_("Exit LyX"),
1285                         _("LyX could not be closed because documents are being processed by LyX."));
1286                 close_event->setAccepted(false);
1287                 return;
1288         }
1289
1290         // If the user pressed the x (so we didn't call closeView
1291         // programmatically), we want to clear all existing entries.
1292         if (!closing_)
1293                 theSession().lastOpened().clear();
1294         closing_ = true;
1295
1296         writeSession();
1297
1298         // it can happen that this event arrives without selecting the view,
1299         // e.g. when clicking the close button on a background window.
1300         setFocus();
1301         if (!closeWorkAreaAll()) {
1302                 closing_ = false;
1303                 close_event->ignore();
1304                 return;
1305         }
1306
1307         // Make sure that nothing will use this to be closed View.
1308         guiApp->unregisterView(this);
1309
1310         if (isFullScreen()) {
1311                 // Switch off fullscreen before closing.
1312                 toggleFullScreen();
1313                 updateDialogs();
1314         }
1315
1316         // Make sure the timer time out will not trigger a statusbar update.
1317         d.statusbar_timer_.stop();
1318         d.statusbar_stats_timer_.stop();
1319
1320         // Saving fullscreen requires additional tweaks in the toolbar code.
1321         // It wouldn't also work under linux natively.
1322         if (lyxrc.allow_geometry_session) {
1323                 saveLayout();
1324                 saveUISettings();
1325         }
1326
1327         close_event->accept();
1328 }
1329
1330
1331 void GuiView::dragEnterEvent(QDragEnterEvent * event)
1332 {
1333         if (event->mimeData()->hasUrls())
1334                 event->accept();
1335         /// \todo Ask lyx-devel is this is enough:
1336         /// if (event->mimeData()->hasFormat("text/plain"))
1337         ///     event->acceptProposedAction();
1338 }
1339
1340
1341 void GuiView::dropEvent(QDropEvent * event)
1342 {
1343         QList<QUrl> files = event->mimeData()->urls();
1344         if (files.isEmpty())
1345                 return;
1346
1347         LYXERR(Debug::GUI, "GuiView::dropEvent: got URLs!");
1348         for (int i = 0; i != files.size(); ++i) {
1349                 string const file = os::internal_path(fromqstr(
1350                         files.at(i).toLocalFile()));
1351                 if (file.empty())
1352                         continue;
1353
1354                 string const ext = support::getExtension(file);
1355                 vector<const Format *> found_formats;
1356
1357                 // Find all formats that have the correct extension.
1358                 for (const Format * fmt : theConverters().importableFormats())
1359                         if (fmt->hasExtension(ext))
1360                                 found_formats.push_back(fmt);
1361
1362                 FuncRequest cmd;
1363                 if (!found_formats.empty()) {
1364                         if (found_formats.size() > 1) {
1365                                 //FIXME: show a dialog to choose the correct importable format
1366                                 LYXERR(Debug::FILES,
1367                                         "Multiple importable formats found, selecting first");
1368                         }
1369                         string const arg = found_formats[0]->name() + " " + file;
1370                         cmd = FuncRequest(LFUN_BUFFER_IMPORT, arg);
1371                 }
1372                 else {
1373                         //FIXME: do we have to explicitly check whether it's a lyx file?
1374                         LYXERR(Debug::FILES,
1375                                 "No formats found, trying to open it as a lyx file");
1376                         cmd = FuncRequest(LFUN_FILE_OPEN, file);
1377                 }
1378                 // add the functions to the queue
1379                 guiApp->addToFuncRequestQueue(cmd);
1380                 event->accept();
1381         }
1382         // now process the collected functions. We perform the events
1383         // asynchronously. This prevents potential problems in case the
1384         // BufferView is closed within an event.
1385         guiApp->processFuncRequestQueueAsync();
1386 }
1387
1388
1389 void GuiView::message(docstring const & str)
1390 {
1391         if (ForkedProcess::iAmAChild())
1392                 return;
1393
1394         // call is moved to GUI-thread by GuiProgress
1395         d.progress_->appendMessage(toqstr(str));
1396 }
1397
1398
1399 void GuiView::clearMessageText()
1400 {
1401         message(docstring());
1402 }
1403
1404
1405 void GuiView::updateStatusBarMessage(QString const & str)
1406 {
1407         statusBar()->showMessage(str);
1408         d.statusbar_timer_.stop();
1409         d.statusbar_timer_.start(3000);
1410 }
1411
1412
1413 void GuiView::clearMessage()
1414 {
1415         // FIXME: This code was introduced in r19643 to fix bug #4123. However,
1416         // the hasFocus function mostly returns false, even if the focus is on
1417         // a workarea in this view.
1418         //if (!hasFocus())
1419         //      return;
1420         showMessage();
1421         d.statusbar_timer_.stop();
1422 }
1423
1424 void GuiView::showStats()
1425 {
1426         if (!statsEnabled())
1427                 return;
1428
1429         d.time_to_update -= d.timer_rate;
1430
1431         BufferView * bv = currentBufferView();
1432         Buffer * buf = bv ? &bv->buffer() : nullptr;
1433         if (!buf) {
1434                 stat_counts_->hide();
1435                 return;
1436         }
1437
1438         Cursor const & cur = bv->cursor();
1439
1440         // we start new selection and need faster update
1441         if (!d.already_in_selection_ && cur.selection())
1442                 d.time_to_update = 0;
1443
1444         if (d.time_to_update > 0)
1445                 return;
1446
1447         DocIterator from, to;
1448         if (cur.selection()) {
1449                 from = cur.selectionBegin();
1450                 to = cur.selectionEnd();
1451                 d.already_in_selection_ = true;
1452         } else {
1453                 from = doc_iterator_begin(buf);
1454                 to = doc_iterator_end(buf);
1455                 d.already_in_selection_ = false;
1456         }
1457
1458         buf->updateStatistics(from, to);
1459
1460         QStringList stats;
1461         if (word_count_enabled_) {
1462                 int const words = buf->wordCount();
1463                 if (words == 1)
1464                         stats << toqstr(bformat(_("%1$d Word"), words));
1465                 else
1466                         stats << toqstr(bformat(_("%1$d Words"), words));
1467         }
1468         int const chars_with_blanks = buf->charCount(true);
1469         if (char_count_enabled_) {
1470                 if (chars_with_blanks == 1)
1471                         stats << toqstr(bformat(_("%1$d Character"), chars_with_blanks));
1472                 else
1473                         stats << toqstr(bformat(_("%1$d Characters"), chars_with_blanks));
1474         }
1475         if (char_nb_count_enabled_) {
1476                 int const chars = buf->charCount(false);
1477                 if (chars == 1)
1478                         stats << toqstr(bformat(_("%1$d Character (no Blanks)"), chars));
1479                 else
1480                         stats << toqstr(bformat(_("%1$d Characters (no Blanks)"), chars));
1481         }
1482         stat_counts_->setText(stats.join(qt_(", [[stats separator]]")));
1483         stat_counts_->show();
1484
1485         d.time_to_update = d.default_stats_rate;
1486         // fast updates for small selections
1487         if (chars_with_blanks < d.max_sel_chars && cur.selection())
1488                 d.time_to_update = d.timer_rate;
1489 }
1490
1491
1492 void GuiView::updateWindowTitle(GuiWorkArea * wa)
1493 {
1494         if (wa != d.current_work_area_
1495                 || wa->bufferView().buffer().isInternal())
1496                 return;
1497         Buffer const & buf = wa->bufferView().buffer();
1498         // Set the windows title
1499         docstring title = buf.fileName().displayName(130) + from_ascii("[*]");
1500         if (buf.notifiesExternalModification()) {
1501                 title = bformat(_("%1$s (modified externally)"), title);
1502                 // If the external modification status has changed, then maybe the status of
1503                 // buffer-save has changed too.
1504                 updateToolbars();
1505         }
1506         title += from_ascii(" - LyX");
1507         setWindowTitle(toqstr(title));
1508         // Sets the path for the window: this is used by OSX to
1509         // allow a context click on the title bar showing a menu
1510         // with the path up to the file
1511         setWindowFilePath(toqstr(buf.absFileName()));
1512         // Tell Qt whether the current document is changed
1513         setWindowModified(!buf.isClean());
1514
1515         if (buf.params().shell_escape)
1516                 shell_escape_->show();
1517         else
1518                 shell_escape_->hide();
1519
1520         if (buf.hasReadonlyFlag())
1521                 read_only_->show();
1522         else
1523                 read_only_->hide();
1524
1525         if (buf.lyxvc().inUse()) {
1526                 version_control_->show();
1527                 version_control_->setText(toqstr(buf.lyxvc().vcstatus()));
1528         } else
1529                 version_control_->hide();
1530 }
1531
1532
1533 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
1534 {
1535         if (d.current_work_area_)
1536                 // disconnect the current work area from all slots
1537                 QObject::disconnect(d.current_work_area_, nullptr, this, nullptr);
1538         disconnectBuffer();
1539         disconnectBufferView();
1540         connectBufferView(wa->bufferView());
1541         connectBuffer(wa->bufferView().buffer());
1542         d.current_work_area_ = wa;
1543         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1544                          this, SLOT(updateWindowTitle(GuiWorkArea *)));
1545         QObject::connect(wa, SIGNAL(busy(bool)),
1546                          this, SLOT(setBusy(bool)));
1547         // connection of a signal to a signal
1548         QObject::connect(wa, SIGNAL(bufferViewChanged()),
1549                          this, SIGNAL(bufferViewChanged()));
1550         Q_EMIT updateWindowTitle(wa);
1551         Q_EMIT bufferViewChanged();
1552 }
1553
1554
1555 void GuiView::onBufferViewChanged()
1556 {
1557         structureChanged();
1558         // Buffer-dependent dialogs must be updated. This is done here because
1559         // some dialogs require buffer()->text.
1560         updateDialogs();
1561         zoom_slider_->setEnabled(currentBufferView());
1562         zoom_value_->setEnabled(currentBufferView());
1563         zoom_in_->setEnabled(currentBufferView());
1564         zoom_out_->setEnabled(currentBufferView());
1565 }
1566
1567
1568 void GuiView::on_lastWorkAreaRemoved()
1569 {
1570         if (closing_)
1571                 // We already are in a close event. Nothing more to do.
1572                 return;
1573
1574         if (d.splitter_->count() > 1)
1575                 // We have a splitter so don't close anything.
1576                 return;
1577
1578         // Reset and updates the dialogs.
1579         Q_EMIT bufferViewChanged();
1580
1581         resetWindowTitle();
1582         updateStatusBar();
1583
1584         if (lyxrc.open_buffers_in_tabs)
1585                 // Nothing more to do, the window should stay open.
1586                 return;
1587
1588         if (guiApp->viewIds().size() > 1) {
1589                 close();
1590                 return;
1591         }
1592
1593 #ifdef Q_OS_MAC
1594         // On Mac we also close the last window because the application stay
1595         // resident in memory. On other platforms we don't close the last
1596         // window because this would quit the application.
1597         close();
1598 #endif
1599 }
1600
1601
1602 void GuiView::updateStatusBar()
1603 {
1604         // let the user see the explicit message
1605         if (d.statusbar_timer_.isActive())
1606                 return;
1607
1608         showMessage();
1609 }
1610
1611
1612 void GuiView::showMessage()
1613 {
1614         if (busy_)
1615                 return;
1616         QString msg = toqstr(theGuiApp()->viewStatusMessage());
1617         if (msg.isEmpty()) {
1618                 BufferView const * bv = currentBufferView();
1619                 if (bv)
1620                         msg = toqstr(bv->cursor().currentState(devel_mode_));
1621                 else
1622                         msg = qt_("Welcome to LyX!");
1623         }
1624         statusBar()->showMessage(msg);
1625 }
1626
1627
1628 bool GuiView::statsEnabled() const
1629 {
1630         return word_count_enabled_ || char_count_enabled_ || char_nb_count_enabled_;
1631 }
1632
1633
1634 bool GuiView::event(QEvent * e)
1635 {
1636         switch (e->type())
1637         {
1638         // Useful debug code:
1639         //case QEvent::ActivationChange:
1640         //case QEvent::WindowDeactivate:
1641         //case QEvent::Paint:
1642         //case QEvent::Enter:
1643         //case QEvent::Leave:
1644         //case QEvent::HoverEnter:
1645         //case QEvent::HoverLeave:
1646         //case QEvent::HoverMove:
1647         //case QEvent::StatusTip:
1648         //case QEvent::DragEnter:
1649         //case QEvent::DragLeave:
1650         //case QEvent::Drop:
1651         //      break;
1652
1653         case QEvent::WindowStateChange: {
1654                 QWindowStateChangeEvent * ev = (QWindowStateChangeEvent*)e;
1655                 bool ofstate = (ev->oldState() & Qt::WindowFullScreen);
1656                 bool result = QMainWindow::event(e);
1657                 bool nfstate = (windowState() & Qt::WindowFullScreen);
1658                 if (!ofstate && nfstate) {
1659                         LYXERR(Debug::DEBUG, "GuiView: WindowStateChange(): full-screen " << nfstate);
1660                         // switch to full-screen state
1661                         if (lyxrc.full_screen_statusbar)
1662                                 statusBar()->hide();
1663                         if (lyxrc.full_screen_menubar)
1664                                 menuBar()->hide();
1665                         if (lyxrc.full_screen_toolbars) {
1666                                 for (auto const & tb_p  : d.toolbars_)
1667                                         if (tb_p.second->isVisibilityOn() && tb_p.second->isVisible())
1668                                                 tb_p.second->hide();
1669                         }
1670                         for (int i = 0; i != d.splitter_->count(); ++i)
1671                                 d.tabWorkArea(i)->setFullScreen(true);
1672 #if QT_VERSION > 0x050903
1673                         //Qt's 5.9.4 ba44cdae38406c safe area measures won't allow us to go negative in margins
1674                         setAttribute(Qt::WA_ContentsMarginsRespectsSafeArea, false);
1675 #endif
1676                         setContentsMargins(-2, -2, -2, -2);
1677                         // bug 5274
1678                         hideDialogs("prefs", nullptr);
1679                 } else if (ofstate && !nfstate) {
1680                         LYXERR(Debug::DEBUG, "GuiView: WindowStateChange(): full-screen " << nfstate);
1681                         // switch back from full-screen state
1682                         if (lyxrc.full_screen_statusbar && !statusBar()->isVisible())
1683                                 statusBar()->show();
1684                         if (lyxrc.full_screen_menubar && !menuBar()->isVisible())
1685                                 menuBar()->show();
1686                         if (lyxrc.full_screen_toolbars) {
1687                                 for (auto const & tb_p  : d.toolbars_)
1688                                         if (tb_p.second->isVisibilityOn() && !tb_p.second->isVisible())
1689                                                 tb_p.second->show();
1690                                 //updateToolbars();
1691                         }
1692                         for (int i = 0; i != d.splitter_->count(); ++i)
1693                                 d.tabWorkArea(i)->setFullScreen(false);
1694 #if QT_VERSION > 0x050903
1695                         setAttribute(Qt::WA_ContentsMarginsRespectsSafeArea, true);
1696 #endif
1697                         setContentsMargins(0, 0, 0, 0);
1698                 }
1699                 return result;
1700         }
1701
1702         case QEvent::WindowActivate: {
1703                 GuiView * old_view = guiApp->currentView();
1704                 if (this == old_view) {
1705                         setFocus();
1706                         return QMainWindow::event(e);
1707                 }
1708                 if (old_view && old_view->currentBufferView()) {
1709                         // save current selection to the selection buffer to allow
1710                         // middle-button paste in this window.
1711                         cap::saveSelection(old_view->currentBufferView()->cursor());
1712                 }
1713                 guiApp->setCurrentView(this);
1714                 if (d.current_work_area_)
1715                         on_currentWorkAreaChanged(d.current_work_area_);
1716                 else
1717                         resetWindowTitle();
1718                 setFocus();
1719                 return QMainWindow::event(e);
1720         }
1721
1722         case QEvent::ShortcutOverride: {
1723                 // See bug 4888
1724                 if (isFullScreen() && menuBar()->isHidden()) {
1725                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
1726                         // FIXME: we should also try to detect special LyX shortcut such as
1727                         // Alt-P and Alt-M. Right now there is a hack in
1728                         // GuiWorkArea::processKeySym() that hides again the menubar for
1729                         // those cases.
1730                         if (ke->modifiers() & Qt::AltModifier && ke->key() != Qt::Key_Alt) {
1731                                 menuBar()->show();
1732                                 return QMainWindow::event(e);
1733                         }
1734                 }
1735                 return QMainWindow::event(e);
1736         }
1737
1738         case QEvent::ApplicationPaletteChange: {
1739                 // runtime switch from/to dark mode
1740                 refillToolbars();
1741                 return QMainWindow::event(e);
1742         }
1743
1744         case QEvent::Gesture: {
1745                 QGestureEvent *ge = static_cast<QGestureEvent*>(e);
1746                 QGesture *gp = ge->gesture(Qt::PinchGesture);
1747                 if (gp) {
1748                         QPinchGesture *pinch = static_cast<QPinchGesture *>(gp);
1749                         QPinchGesture::ChangeFlags changeFlags = pinch->changeFlags();
1750                         qreal totalScaleFactor = pinch->totalScaleFactor();
1751                         LYXERR(Debug::GUI, "totalScaleFactor: " << totalScaleFactor);
1752                         if (pinch->state() == Qt::GestureStarted) {
1753                                 initialZoom_ = lyxrc.currentZoom;
1754                                 LYXERR(Debug::GUI, "initialZoom_: " << initialZoom_);
1755                         }
1756                         if (changeFlags & QPinchGesture::ScaleFactorChanged) {
1757                                 qreal factor = initialZoom_ * totalScaleFactor;
1758                                 LYXERR(Debug::GUI, "scaleFactor: " << factor);
1759                                 zoomValueChanged(factor);
1760                         }
1761                 }
1762                 return QMainWindow::event(e);
1763         }
1764
1765         default:
1766                 return QMainWindow::event(e);
1767         }
1768 }
1769
1770 void GuiView::resetWindowTitle()
1771 {
1772         setWindowTitle(qt_("LyX"));
1773 }
1774
1775 bool GuiView::focusNextPrevChild(bool /*next*/)
1776 {
1777         setFocus();
1778         return true;
1779 }
1780
1781
1782 bool GuiView::busy() const
1783 {
1784         return busy_ > 0;
1785 }
1786
1787
1788 void GuiView::setBusy(bool busy)
1789 {
1790         bool const busy_before = busy_ > 0;
1791         busy ? ++busy_ : --busy_;
1792         if ((busy_ > 0) == busy_before)
1793                 // busy state didn't change
1794                 return;
1795
1796         if (busy) {
1797                 QApplication::setOverrideCursor(Qt::WaitCursor);
1798                 return;
1799         }
1800         QApplication::restoreOverrideCursor();
1801         updateLayoutList();
1802 }
1803
1804
1805 void GuiView::resetCommandExecute()
1806 {
1807         command_execute_ = false;
1808         updateToolbars();
1809 }
1810
1811
1812 double GuiView::pixelRatio() const
1813 {
1814         return qt_scale_factor * devicePixelRatio();
1815 }
1816
1817
1818 GuiWorkArea * GuiView::workArea(int index)
1819 {
1820         if (TabWorkArea * twa = d.currentTabWorkArea())
1821                 if (index < twa->count())
1822                         return twa->workArea(index);
1823         return nullptr;
1824 }
1825
1826
1827 GuiWorkArea * GuiView::workArea(Buffer & buffer)
1828 {
1829         if (currentWorkArea()
1830                 && &currentWorkArea()->bufferView().buffer() == &buffer)
1831                 return currentWorkArea();
1832         if (TabWorkArea * twa = d.currentTabWorkArea())
1833                 return twa->workArea(buffer);
1834         return nullptr;
1835 }
1836
1837
1838 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
1839 {
1840         // Automatically create a TabWorkArea if there are none yet.
1841         TabWorkArea * tab_widget = d.splitter_->count()
1842                 ? d.currentTabWorkArea() : addTabWorkArea();
1843         return tab_widget->addWorkArea(buffer, *this);
1844 }
1845
1846
1847 TabWorkArea * GuiView::addTabWorkArea()
1848 {
1849         TabWorkArea * twa = new TabWorkArea;
1850         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
1851                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
1852         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
1853                          this, SLOT(on_lastWorkAreaRemoved()));
1854
1855         d.splitter_->addWidget(twa);
1856         d.stack_widget_->setCurrentWidget(d.splitter_);
1857         return twa;
1858 }
1859
1860
1861 GuiWorkArea const * GuiView::currentWorkArea() const
1862 {
1863         return d.current_work_area_;
1864 }
1865
1866
1867 GuiWorkArea * GuiView::currentWorkArea()
1868 {
1869         return d.current_work_area_;
1870 }
1871
1872
1873 GuiWorkArea const * GuiView::currentMainWorkArea() const
1874 {
1875         if (!d.currentTabWorkArea())
1876                 return nullptr;
1877         return d.currentTabWorkArea()->currentWorkArea();
1878 }
1879
1880
1881 GuiWorkArea * GuiView::currentMainWorkArea()
1882 {
1883         if (!d.currentTabWorkArea())
1884                 return nullptr;
1885         return d.currentTabWorkArea()->currentWorkArea();
1886 }
1887
1888
1889 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
1890 {
1891         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
1892         if (!wa) {
1893                 d.current_work_area_ = nullptr;
1894                 d.setBackground();
1895                 Q_EMIT bufferViewChanged();
1896                 return;
1897         }
1898
1899         // FIXME: I've no clue why this is here and why it accesses
1900         //  theGuiApp()->currentView, which might be 0 (bug 6464).
1901         //  See also 27525 (vfr).
1902         if (theGuiApp()->currentView() == this
1903                   && theGuiApp()->currentView()->currentWorkArea() == wa)
1904                 return;
1905
1906         if (currentBufferView())
1907                 cap::saveSelection(currentBufferView()->cursor());
1908
1909         theGuiApp()->setCurrentView(this);
1910         d.current_work_area_ = wa;
1911
1912         // We need to reset this now, because it will need to be
1913         // right if the tabWorkArea gets reset in the for loop. We
1914         // will change it back if we aren't in that case.
1915         GuiWorkArea * const old_cmwa = d.current_main_work_area_;
1916         d.current_main_work_area_ = wa;
1917
1918         for (int i = 0; i != d.splitter_->count(); ++i) {
1919                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
1920                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea()
1921                                 << ", Current main wa: " << currentMainWorkArea());
1922                         return;
1923                 }
1924         }
1925
1926         d.current_main_work_area_ = old_cmwa;
1927
1928         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
1929         on_currentWorkAreaChanged(wa);
1930         BufferView & bv = wa->bufferView();
1931         bv.cursor().fixIfBroken();
1932         bv.updateMetrics();
1933         wa->setUpdatesEnabled(true);
1934         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1935 }
1936
1937
1938 void GuiView::removeWorkArea(GuiWorkArea * wa)
1939 {
1940         LASSERT(wa, return);
1941         if (wa == d.current_work_area_) {
1942                 disconnectBuffer();
1943                 disconnectBufferView();
1944                 d.current_work_area_ = nullptr;
1945                 d.current_main_work_area_ = nullptr;
1946         }
1947
1948         bool found_twa = false;
1949         for (int i = 0; i != d.splitter_->count(); ++i) {
1950                 TabWorkArea * twa = d.tabWorkArea(i);
1951                 if (twa->removeWorkArea(wa)) {
1952                         // Found in this tab group, and deleted the GuiWorkArea.
1953                         found_twa = true;
1954                         if (twa->count() != 0) {
1955                                 if (d.current_work_area_ == nullptr)
1956                                         // This means that we are closing the current GuiWorkArea, so
1957                                         // switch to the next GuiWorkArea in the found TabWorkArea.
1958                                         setCurrentWorkArea(twa->currentWorkArea());
1959                         } else {
1960                                 // No more WorkAreas in this tab group, so delete it.
1961                                 delete twa;
1962                         }
1963                         break;
1964                 }
1965         }
1966
1967         // It is not a tabbed work area (i.e., the search work area), so it
1968         // should be deleted by other means.
1969         LASSERT(found_twa, return);
1970
1971         if (d.current_work_area_ == nullptr) {
1972                 if (d.splitter_->count() != 0) {
1973                         TabWorkArea * twa = d.currentTabWorkArea();
1974                         setCurrentWorkArea(twa->currentWorkArea());
1975                 } else {
1976                         // No more work areas, switch to the background widget.
1977                         setCurrentWorkArea(nullptr);
1978                 }
1979         }
1980 }
1981
1982
1983 bool GuiView::hasVisibleWorkArea(GuiWorkArea * wa) const
1984 {
1985         for (int i = 0; i < d.splitter_->count(); ++i)
1986                 if (d.tabWorkArea(i)->currentWorkArea() == wa)
1987                         return true;
1988
1989         FindAndReplace * fr = static_cast<FindAndReplace*>(find("findreplaceadv", false));
1990         return fr->isVisible() && fr->hasWorkArea(wa);
1991 }
1992
1993
1994 LayoutBox * GuiView::getLayoutDialog() const
1995 {
1996         return d.layout_;
1997 }
1998
1999
2000 void GuiView::updateLayoutList()
2001 {
2002         if (d.layout_)
2003                 d.layout_->updateContents(false);
2004 }
2005
2006
2007 void GuiView::updateToolbars()
2008 {
2009         if (d.current_work_area_) {
2010                 int context = 0;
2011                 if (d.current_work_area_->bufferView().cursor().inMathed()
2012                         && !d.current_work_area_->bufferView().cursor().inRegexped())
2013                         context |= Toolbars::MATH;
2014                 if (lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled())
2015                         context |= Toolbars::TABLE;
2016                 if (currentBufferView()->buffer().areChangesPresent()
2017                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled()
2018                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onOff(true))
2019                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).enabled()
2020                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).onOff(true)))
2021                         context |= Toolbars::REVIEW;
2022                 if (lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled())
2023                         context |= Toolbars::MATHMACROTEMPLATE;
2024                 if (lyx::getStatus(FuncRequest(LFUN_IN_IPA)).enabled())
2025                         context |= Toolbars::IPA;
2026                 if (command_execute_)
2027                         context |= Toolbars::MINIBUFFER;
2028                 if (minibuffer_focus_) {
2029                         context |= Toolbars::MINIBUFFER_FOCUS;
2030                         minibuffer_focus_ = false;
2031                 }
2032
2033                 for (auto const & tb_p : d.toolbars_)
2034                         tb_p.second->update(context);
2035         } else
2036                 for (auto const & tb_p : d.toolbars_)
2037                         tb_p.second->update();
2038 }
2039
2040
2041 void GuiView::refillToolbars()
2042 {
2043         DynamicMenuButton::resetIconCache();
2044         for (auto const & tb_p : d.toolbars_)
2045                 tb_p.second->refill();
2046 }
2047
2048
2049 void GuiView::setBuffer(Buffer * newBuffer, bool switch_to)
2050 {
2051         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << endl);
2052         LASSERT(newBuffer, return);
2053
2054         GuiWorkArea * wa = workArea(*newBuffer);
2055         if (wa == nullptr) {
2056                 setBusy(true);
2057                 newBuffer->masterBuffer()->updateBuffer();
2058                 setBusy(false);
2059                 wa = addWorkArea(*newBuffer);
2060                 // scroll to the position when the BufferView was last closed
2061                 if (lyxrc.use_lastfilepos) {
2062                         LastFilePosSection::FilePos filepos =
2063                                 theSession().lastFilePos().load(newBuffer->fileName());
2064                         wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
2065                 }
2066         } else {
2067                 //Disconnect the old buffer...there's no new one.
2068                 disconnectBuffer();
2069         }
2070         connectBuffer(*newBuffer);
2071         connectBufferView(wa->bufferView());
2072         if (switch_to)
2073                 setCurrentWorkArea(wa);
2074 }
2075
2076
2077 void GuiView::connectBuffer(Buffer & buf)
2078 {
2079         buf.setGuiDelegate(this);
2080 }
2081
2082
2083 void GuiView::disconnectBuffer()
2084 {
2085         if (d.current_work_area_)
2086                 d.current_work_area_->bufferView().buffer().setGuiDelegate(nullptr);
2087 }
2088
2089
2090 void GuiView::connectBufferView(BufferView & bv)
2091 {
2092         bv.setGuiDelegate(this);
2093 }
2094
2095
2096 void GuiView::disconnectBufferView()
2097 {
2098         if (d.current_work_area_)
2099                 d.current_work_area_->bufferView().setGuiDelegate(nullptr);
2100 }
2101
2102
2103 void GuiView::errors(string const & error_type, bool from_master)
2104 {
2105         BufferView const * const bv = currentBufferView();
2106         if (!bv)
2107                 return;
2108
2109         ErrorList const & el = from_master ?
2110                 bv->buffer().masterBuffer()->errorList(error_type) :
2111                 bv->buffer().errorList(error_type);
2112
2113         if (el.empty())
2114                 return;
2115
2116         string err = error_type;
2117         if (from_master)
2118                 err = "from_master|" + error_type;
2119         showDialog("errorlist", err);
2120 }
2121
2122
2123 void GuiView::updateTocItem(string const & type, DocIterator const & dit)
2124 {
2125         d.toc_models_.updateItem(toqstr(type), dit);
2126 }
2127
2128
2129 void GuiView::structureChanged()
2130 {
2131         // This is called from the Buffer, which has no way to ensure that cursors
2132         // in BufferView remain valid.
2133         if (documentBufferView())
2134                 documentBufferView()->cursor().sanitize();
2135         // FIXME: This is slightly expensive, though less than the tocBackend update
2136         // (#9880). This also resets the view in the Toc Widget (#6675).
2137         d.toc_models_.reset(documentBufferView());
2138         // Navigator needs more than a simple update in this case. It needs to be
2139         // rebuilt.
2140         updateDialog("toc", "");
2141 }
2142
2143
2144 void GuiView::updateDialog(string const & name, string const & sdata)
2145 {
2146         if (!isDialogVisible(name))
2147                 return;
2148
2149         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
2150         if (it == d.dialogs_.end())
2151                 return;
2152
2153         Dialog * const dialog = it->second.get();
2154         if (dialog->isVisibleView())
2155                 dialog->initialiseParams(sdata);
2156 }
2157
2158
2159 BufferView * GuiView::documentBufferView()
2160 {
2161         return currentMainWorkArea()
2162                 ? &currentMainWorkArea()->bufferView()
2163                 : nullptr;
2164 }
2165
2166
2167 BufferView const * GuiView::documentBufferView() const
2168 {
2169         return currentMainWorkArea()
2170                 ? &currentMainWorkArea()->bufferView()
2171                 : nullptr;
2172 }
2173
2174
2175 BufferView * GuiView::currentBufferView()
2176 {
2177         return d.current_work_area_ ? &d.current_work_area_->bufferView() : nullptr;
2178 }
2179
2180
2181 BufferView const * GuiView::currentBufferView() const
2182 {
2183         return d.current_work_area_ ? &d.current_work_area_->bufferView() : nullptr;
2184 }
2185
2186
2187 docstring GuiView::GuiViewPrivate::autosaveAndDestroy(
2188         Buffer const * orig, Buffer * clone)
2189 {
2190         bool const success = clone->autoSave();
2191         delete clone;
2192         busyBuffers.remove(orig);
2193         return success
2194                 ? _("Automatic save done.")
2195                 : _("Automatic save failed!");
2196 }
2197
2198
2199 void GuiView::autoSave()
2200 {
2201         LYXERR(Debug::INFO, "Running autoSave()");
2202
2203         Buffer * buffer = documentBufferView()
2204                 ? &documentBufferView()->buffer() : nullptr;
2205         if (!buffer) {
2206                 resetAutosaveTimers();
2207                 return;
2208         }
2209
2210         GuiViewPrivate::busyBuffers.insert(buffer);
2211         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::autosaveAndDestroy,
2212                 buffer, buffer->cloneBufferOnly());
2213         d.autosave_watcher_.setFuture(f);
2214         resetAutosaveTimers();
2215 }
2216
2217
2218 void GuiView::resetAutosaveTimers()
2219 {
2220         if (lyxrc.autosave)
2221                 d.autosave_timeout_.restart();
2222 }
2223
2224
2225 namespace {
2226
2227 double zoomRatio(FuncRequest const & cmd, double const zr)
2228 {
2229         if (cmd.argument().empty()) {
2230                 if (cmd.action() == LFUN_BUFFER_ZOOM)
2231                         return 1.0;
2232                 else if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
2233                         return zr + 0.1;
2234                 else // cmd.action() == LFUN_BUFFER_ZOOM_OUT
2235                         return zr - 0.1;
2236         } else {
2237                 if (cmd.action() == LFUN_BUFFER_ZOOM)
2238                         return convert<int>(cmd.argument()) / double(lyxrc.defaultZoom);
2239                 else if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
2240                         return zr + convert<int>(cmd.argument()) / 100.0;
2241                 else // cmd.action() == LFUN_BUFFER_ZOOM_OUT
2242                         return zr - convert<int>(cmd.argument()) / 100.0;
2243         }
2244 }
2245
2246 }
2247
2248
2249 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
2250 {
2251         bool enable = true;
2252         Buffer * buf = currentBufferView()
2253                 ? &currentBufferView()->buffer() : nullptr;
2254         Buffer * doc_buffer = documentBufferView()
2255                 ? &(documentBufferView()->buffer()) : nullptr;
2256
2257 #ifdef Q_OS_MAC
2258         /* In LyX/Mac, when a dialog is open, the menus of the
2259            application can still be accessed without giving focus to
2260            the main window. In this case, we want to disable the menu
2261            entries that are buffer-related.
2262            This code must not be used on Linux and Windows, since it
2263            would disable buffer-related entries when hovering over the
2264            menu (see bug #9574).
2265          */
2266         if (cmd.origin() == FuncRequest::MENU && !hasFocus()) {
2267                 buf = 0;
2268                 doc_buffer = 0;
2269         }
2270 #endif
2271
2272         // Check whether we need a buffer
2273         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
2274                 // no, exit directly
2275                 flag.message(from_utf8(N_("Command not allowed with"
2276                                         "out any document open")));
2277                 flag.setEnabled(false);
2278                 return true;
2279         }
2280
2281         if (cmd.origin() == FuncRequest::TOC) {
2282                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
2283                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
2284                         flag.setEnabled(false);
2285                 return true;
2286         }
2287
2288         switch(cmd.action()) {
2289         case LFUN_BUFFER_IMPORT:
2290                 break;
2291
2292         case LFUN_MASTER_BUFFER_EXPORT:
2293                 enable = doc_buffer
2294                         && (doc_buffer->parent() != nullptr
2295                             || doc_buffer->hasChildren())
2296                         && !d.processing_thread_watcher_.isRunning()
2297                         // this launches a dialog, which would be in the wrong Buffer
2298                         && !(::lyx::operator==(cmd.argument(), "custom"));
2299                 break;
2300
2301         case LFUN_MASTER_BUFFER_UPDATE:
2302         case LFUN_MASTER_BUFFER_VIEW:
2303                 enable = doc_buffer
2304                         && (doc_buffer->parent() != nullptr
2305                             || doc_buffer->hasChildren())
2306                         && !d.processing_thread_watcher_.isRunning();
2307                 break;
2308
2309         case LFUN_BUFFER_UPDATE:
2310         case LFUN_BUFFER_VIEW: {
2311                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
2312                         enable = false;
2313                         break;
2314                 }
2315                 string format = to_utf8(cmd.argument());
2316                 if (cmd.argument().empty())
2317                         format = doc_buffer->params().getDefaultOutputFormat();
2318                 enable = doc_buffer->params().isExportable(format, true);
2319                 break;
2320         }
2321
2322         case LFUN_BUFFER_RELOAD:
2323                 enable = doc_buffer && !doc_buffer->isUnnamed()
2324                         && doc_buffer->fileName().exists()
2325                         && (!doc_buffer->isClean() || doc_buffer->notifiesExternalModification());
2326                 break;
2327
2328         case LFUN_BUFFER_RESET_EXPORT:
2329                 enable = doc_buffer != nullptr;
2330                 break;
2331
2332         case LFUN_BUFFER_CHILD_OPEN:
2333                 enable = doc_buffer != nullptr;
2334                 break;
2335
2336         case LFUN_MASTER_BUFFER_FORALL: {
2337                 if (doc_buffer == nullptr) {
2338                         flag.message(from_utf8(N_("Command not allowed without a buffer open")));
2339                         enable = false;
2340                         break;
2341                 }
2342                 FuncRequest const cmdToPass = lyxaction.lookupFunc(cmd.getLongArg(0));
2343                 if (cmdToPass.action() == LFUN_UNKNOWN_ACTION) {
2344                         flag.message(from_utf8(N_("Invalid argument of master-buffer-forall")));
2345                         enable = false;
2346                         break;
2347                 }
2348                 enable = false;
2349                 for (Buffer * buf : doc_buffer->allRelatives()) {
2350                         GuiWorkArea * wa = workArea(*buf);
2351                         if (!wa)
2352                                 continue;
2353                         if (wa->bufferView().getStatus(cmdToPass, flag)) {
2354                                 enable = flag.enabled();
2355                                 break;
2356                         }
2357                 }
2358                 break;
2359         }
2360
2361         case LFUN_BUFFER_WRITE:
2362                 enable = doc_buffer && (doc_buffer->isUnnamed()
2363                                         || (!doc_buffer->isClean()
2364                                             || cmd.argument() == "force"));
2365                 break;
2366
2367         //FIXME: This LFUN should be moved to GuiApplication.
2368         case LFUN_BUFFER_WRITE_ALL: {
2369                 // We enable the command only if there are some modified buffers
2370                 Buffer * first = theBufferList().first();
2371                 enable = false;
2372                 if (!first)
2373                         break;
2374                 Buffer * b = first;
2375                 // We cannot use a for loop as the buffer list is a cycle.
2376                 do {
2377                         if (!b->isClean()) {
2378                                 enable = true;
2379                                 break;
2380                         }
2381                         b = theBufferList().next(b);
2382                 } while (b != first);
2383                 break;
2384         }
2385
2386         case LFUN_BUFFER_EXTERNAL_MODIFICATION_CLEAR:
2387                 enable = doc_buffer && doc_buffer->notifiesExternalModification();
2388                 break;
2389
2390         case LFUN_BUFFER_EXPORT: {
2391                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
2392                         enable = false;
2393                         break;
2394                 }
2395                 return doc_buffer->getStatus(cmd, flag);
2396         }
2397
2398         case LFUN_BUFFER_EXPORT_AS:
2399                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
2400                         enable = false;
2401                         break;
2402                 }
2403                 // fall through
2404         case LFUN_BUFFER_WRITE_AS:
2405         case LFUN_BUFFER_WRITE_AS_TEMPLATE:
2406                 enable = doc_buffer != nullptr;
2407                 break;
2408
2409         case LFUN_EXPORT_CANCEL:
2410                 enable = d.processing_thread_watcher_.isRunning();
2411                 break;
2412
2413         case LFUN_BUFFER_CLOSE:
2414         case LFUN_VIEW_CLOSE:
2415                 enable = doc_buffer != nullptr;
2416                 break;
2417
2418         case LFUN_BUFFER_CLOSE_ALL:
2419                 enable = theBufferList().last() != theBufferList().first();
2420                 break;
2421
2422         case LFUN_BUFFER_CHKTEX: {
2423                 // hide if we have no checktex command
2424                 if (lyxrc.chktex_command.empty()) {
2425                         flag.setUnknown(true);
2426                         enable = false;
2427                         break;
2428                 }
2429                 if (!doc_buffer || !doc_buffer->params().isLatex()
2430                     || d.processing_thread_watcher_.isRunning()) {
2431                         // grey out, don't hide
2432                         enable = false;
2433                         break;
2434                 }
2435                 enable = true;
2436                 break;
2437         }
2438
2439         case LFUN_VIEW_SPLIT:
2440                 if (cmd.getArg(0) == "vertical")
2441                         enable = doc_buffer && (d.splitter_->count() == 1 ||
2442                                          d.splitter_->orientation() == Qt::Vertical);
2443                 else
2444                         enable = doc_buffer && (d.splitter_->count() == 1 ||
2445                                          d.splitter_->orientation() == Qt::Horizontal);
2446                 break;
2447
2448         case LFUN_TAB_GROUP_NEXT:
2449         case LFUN_TAB_GROUP_PREVIOUS:
2450                 enable = (d.splitter_->count() > 1);
2451                 break;
2452
2453         case LFUN_TAB_GROUP_CLOSE:
2454                 enable = d.tabWorkAreaCount() > 1;
2455                 break;
2456
2457         case LFUN_DEVEL_MODE_TOGGLE:
2458                 flag.setOnOff(devel_mode_);
2459                 break;
2460
2461         case LFUN_TOOLBAR_SET: {
2462                 string const name = cmd.getArg(0);
2463                 string const state = cmd.getArg(1);
2464                 if (name.empty() || state.empty()) {
2465                         enable = false;
2466                         docstring const msg =
2467                                 _("Function toolbar-set requires two arguments!");
2468                         flag.message(msg);
2469                         break;
2470                 }
2471                 if (state != "on" && state != "off" && state != "auto") {
2472                         enable = false;
2473                         docstring const msg =
2474                                 bformat(_("Invalid argument \"%1$s\" to function toolbar-set!"),
2475                                         from_utf8(state));
2476                         flag.message(msg);
2477                         break;
2478                 }
2479                 if (GuiToolbar * t = toolbar(name)) {
2480                         bool const autovis = t->visibility() & Toolbars::AUTO;
2481                         if (state == "on")
2482                                 flag.setOnOff(t->isVisible() && !autovis);
2483                         else if (state == "off")
2484                                 flag.setOnOff(!t->isVisible() && !autovis);
2485                         else if (state == "auto")
2486                                 flag.setOnOff(autovis);
2487                 } else {
2488                         enable = false;
2489                         docstring const msg =
2490                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
2491                         flag.message(msg);
2492                 }
2493                 break;
2494         }
2495
2496         case LFUN_TOOLBAR_TOGGLE: {
2497                 string const name = cmd.getArg(0);
2498                 if (GuiToolbar * t = toolbar(name))
2499                         flag.setOnOff(t->isVisible());
2500                 else {
2501                         enable = false;
2502                         docstring const msg =
2503                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
2504                         flag.message(msg);
2505                 }
2506                 break;
2507         }
2508
2509         case LFUN_TOOLBAR_MOVABLE: {
2510                 string const name = cmd.getArg(0);
2511                 // use negation since locked == !movable
2512                 if (name == "*")
2513                         // toolbar name * locks all toolbars
2514                         flag.setOnOff(!toolbarsMovable_);
2515                 else if (GuiToolbar * t = toolbar(name))
2516                         flag.setOnOff(!(t->isMovable()));
2517                 else {
2518                         enable = false;
2519                         docstring const msg =
2520                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
2521                         flag.message(msg);
2522                 }
2523                 break;
2524         }
2525
2526         case LFUN_ICON_SIZE:
2527                 flag.setOnOff(d.iconSize(cmd.argument()) == iconSize());
2528                 break;
2529
2530         case LFUN_DROP_LAYOUTS_CHOICE:
2531                 enable = buf != nullptr;
2532                 break;
2533
2534         case LFUN_UI_TOGGLE:
2535                 if (cmd.argument() == "zoomlevel") {
2536                         flag.setOnOff(zoom_value_ ? zoom_value_->isVisible() : false);
2537                 } else if (cmd.argument() == "zoomslider") {
2538                         flag.setOnOff(zoom_slider_ ? zoom_slider_->isVisible() : false);
2539                 } else if (cmd.argument() == "statistics-w") {
2540                         flag.setOnOff(word_count_enabled_);
2541                 } else if (cmd.argument() == "statistics-cb") {
2542                         flag.setOnOff(char_count_enabled_);
2543                 } else if (cmd.argument() == "statistics-c") {
2544                         flag.setOnOff(char_nb_count_enabled_);
2545                 } else
2546                         flag.setOnOff(isFullScreen());
2547                 break;
2548
2549         case LFUN_DIALOG_DISCONNECT_INSET:
2550                 break;
2551
2552         case LFUN_DIALOG_HIDE:
2553                 // FIXME: should we check if the dialog is shown?
2554                 break;
2555
2556         case LFUN_DIALOG_TOGGLE:
2557                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
2558                 // to set "enable"
2559                 // fall through
2560         case LFUN_DIALOG_SHOW: {
2561                 string const name = cmd.getArg(0);
2562                 if (!doc_buffer)
2563                         enable = name == "aboutlyx"
2564                                 || name == "file" //FIXME: should be removed.
2565                                 || name == "lyxfiles"
2566                                 || name == "prefs"
2567                                 || name == "texinfo"
2568                                 || name == "progress"
2569                                 || name == "compare";
2570                 else if (name == "character" || name == "symbols"
2571                         || name == "mathdelimiter" || name == "mathmatrix") {
2572                         if (!buf || buf->isReadonly())
2573                                 enable = false;
2574                         else {
2575                                 Cursor const & cur = currentBufferView()->cursor();
2576                                 enable = !(cur.inTexted() && cur.paragraph().isPassThru());
2577                         }
2578                 }
2579                 else if (name == "latexlog")
2580                         enable = FileName(doc_buffer->logName()).isReadableFile();
2581                 else if (name == "spellchecker")
2582                         enable = theSpellChecker()
2583                                 && !doc_buffer->text().empty();
2584                 else if (name == "vclog")
2585                         enable = doc_buffer->lyxvc().inUse();
2586                 break;
2587         }
2588
2589         case LFUN_DIALOG_UPDATE: {
2590                 string const name = cmd.getArg(0);
2591                 if (!buf)
2592                         enable = name == "prefs";
2593                 break;
2594         }
2595
2596         case LFUN_COMMAND_EXECUTE:
2597         case LFUN_MESSAGE:
2598         case LFUN_MENU_OPEN:
2599                 // Nothing to check.
2600                 break;
2601
2602         case LFUN_COMPLETION_INLINE:
2603                 if (!d.current_work_area_
2604                         || !d.current_work_area_->completer().inlinePossible(
2605                         currentBufferView()->cursor()))
2606                         enable = false;
2607                 break;
2608
2609         case LFUN_COMPLETION_POPUP:
2610                 if (!d.current_work_area_
2611                         || !d.current_work_area_->completer().popupPossible(
2612                         currentBufferView()->cursor()))
2613                         enable = false;
2614                 break;
2615
2616         case LFUN_COMPLETE:
2617                 if (!d.current_work_area_
2618                         || !d.current_work_area_->completer().inlinePossible(
2619                         currentBufferView()->cursor()))
2620                         enable = false;
2621                 break;
2622
2623         case LFUN_COMPLETION_ACCEPT:
2624                 if (!d.current_work_area_
2625                         || (!d.current_work_area_->completer().popupVisible()
2626                         && !d.current_work_area_->completer().inlineVisible()
2627                         && !d.current_work_area_->completer().completionAvailable()))
2628                         enable = false;
2629                 break;
2630
2631         case LFUN_COMPLETION_CANCEL:
2632                 if (!d.current_work_area_
2633                         || (!d.current_work_area_->completer().popupVisible()
2634                         && !d.current_work_area_->completer().inlineVisible()))
2635                         enable = false;
2636                 break;
2637
2638         case LFUN_BUFFER_ZOOM_OUT:
2639         case LFUN_BUFFER_ZOOM_IN:
2640         case LFUN_BUFFER_ZOOM: {
2641                 int const zoom = (int)(lyxrc.defaultZoom * zoomRatio(cmd, zoom_ratio_));
2642                 if (zoom < zoom_min_) {
2643                         docstring const msg =
2644                                 bformat(_("Zoom level cannot be less than %1$d%."), zoom_min_);
2645                         flag.message(msg);
2646                         enable = false;
2647                 } else if (zoom > zoom_max_) {
2648                         docstring const msg =
2649                                 bformat(_("Zoom level cannot be more than %1$d%."), zoom_max_);
2650                         flag.message(msg);
2651                         enable = false;
2652                 } else
2653                         enable = doc_buffer;
2654                 break;
2655         }
2656
2657
2658         case LFUN_BUFFER_MOVE_NEXT:
2659         case LFUN_BUFFER_MOVE_PREVIOUS:
2660                 // we do not cycle when moving
2661         case LFUN_BUFFER_NEXT:
2662         case LFUN_BUFFER_PREVIOUS:
2663                 // because we cycle, it doesn't matter whether on first or last
2664                 enable = (d.currentTabWorkArea()->count() > 1);
2665                 break;
2666         case LFUN_BUFFER_SWITCH:
2667                 // toggle on the current buffer, but do not toggle off
2668                 // the other ones (is that a good idea?)
2669                 if (doc_buffer
2670                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
2671                         flag.setOnOff(true);
2672                 break;
2673
2674         case LFUN_VC_REGISTER:
2675                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
2676                 break;
2677         case LFUN_VC_RENAME:
2678                 enable = doc_buffer && doc_buffer->lyxvc().renameEnabled();
2679                 break;
2680         case LFUN_VC_COPY:
2681                 enable = doc_buffer && doc_buffer->lyxvc().copyEnabled();
2682                 break;
2683         case LFUN_VC_CHECK_IN:
2684                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
2685                 break;
2686         case LFUN_VC_CHECK_OUT:
2687                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
2688                 break;
2689         case LFUN_VC_LOCKING_TOGGLE:
2690                 enable = doc_buffer && !doc_buffer->hasReadonlyFlag()
2691                         && doc_buffer->lyxvc().lockingToggleEnabled();
2692                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
2693                 break;
2694         case LFUN_VC_REVERT:
2695                 enable = doc_buffer && doc_buffer->lyxvc().inUse()
2696                         && !doc_buffer->hasReadonlyFlag();
2697                 break;
2698         case LFUN_VC_UNDO_LAST:
2699                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
2700                 break;
2701         case LFUN_VC_REPO_UPDATE:
2702                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
2703                 break;
2704         case LFUN_VC_COMMAND: {
2705                 if (cmd.argument().empty())
2706                         enable = false;
2707                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
2708                         enable = false;
2709                 break;
2710         }
2711         case LFUN_VC_COMPARE:
2712                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
2713                 break;
2714
2715         case LFUN_SERVER_GOTO_FILE_ROW:
2716         case LFUN_LYX_ACTIVATE:
2717         case LFUN_WINDOW_RAISE:
2718                 break;
2719         case LFUN_FORWARD_SEARCH:
2720                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty()) &&
2721                         doc_buffer && doc_buffer->isSyncTeXenabled();
2722                 break;
2723
2724         case LFUN_FILE_INSERT_PLAINTEXT:
2725         case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2726                 enable = documentBufferView() && documentBufferView()->cursor().inTexted();
2727                 break;
2728
2729         case LFUN_SPELLING_CONTINUOUSLY:
2730                 flag.setOnOff(lyxrc.spellcheck_continuously);
2731                 break;
2732
2733         case LFUN_CITATION_OPEN:
2734                 enable = true;
2735                 break;
2736
2737         default:
2738                 return false;
2739         }
2740
2741         if (!enable)
2742                 flag.setEnabled(false);
2743
2744         return true;
2745 }
2746
2747
2748 static FileName selectTemplateFile()
2749 {
2750         FileDialog dlg(qt_("Select template file"));
2751         dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
2752         dlg.setButton2(qt_("&Templates"), toqstr(lyxrc.template_path));
2753
2754         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
2755                                  QStringList(qt_("LyX Documents (*.lyx)")));
2756
2757         if (result.first == FileDialog::Later)
2758                 return FileName();
2759         if (result.second.isEmpty())
2760                 return FileName();
2761         return FileName(fromqstr(result.second));
2762 }
2763
2764
2765 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
2766 {
2767         setBusy(true);
2768
2769         Buffer * newBuffer = nullptr;
2770         try {
2771                 newBuffer = checkAndLoadLyXFile(filename);
2772         } catch (ExceptionMessage const &) {
2773                 setBusy(false);
2774                 throw;
2775         }
2776         setBusy(false);
2777
2778         if (!newBuffer) {
2779                 message(_("Document not loaded."));
2780                 return nullptr;
2781         }
2782
2783         setBuffer(newBuffer);
2784         newBuffer->errors("Parse");
2785
2786         if (tolastfiles) {
2787                 theSession().lastFiles().add(filename);
2788                 theSession().writeFile();
2789   }
2790
2791         return newBuffer;
2792 }
2793
2794
2795 void GuiView::openDocument(string const & fname, int origin)
2796 {
2797         string initpath = lyxrc.document_path;
2798
2799         if (documentBufferView()) {
2800                 string const trypath = documentBufferView()->buffer().filePath();
2801                 // If directory is writeable, use this as default.
2802                 if (FileName(trypath).isDirWritable())
2803                         initpath = trypath;
2804         }
2805
2806         string filename;
2807
2808         if (fname.empty()) {
2809                 FileDialog dlg(qt_("Select document to open"));
2810                 dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
2811                 dlg.setButton2(qt_("&Examples"), toqstr(lyxrc.example_path));
2812
2813                 QStringList const filter({
2814                                 qt_("LyX Documents (*.lyx)"),
2815                                 qt_("LyX Document Backups (*.lyx~)"),
2816                                 qt_("All Files (*.*)")
2817                 });
2818                 FileDialog::Result result =
2819                         dlg.open(toqstr(initpath), filter);
2820
2821                 if (result.first == FileDialog::Later)
2822                         return;
2823
2824                 filename = fromqstr(result.second);
2825
2826                 // check selected filename
2827                 if (filename.empty()) {
2828                         message(_("Canceled."));
2829                         return;
2830                 }
2831         } else
2832                 filename = fname;
2833
2834         // get absolute path of file and add ".lyx" to the filename if
2835         // necessary.
2836         FileName const fullname =
2837                         fileSearch(string(), filename, "lyx", support::may_not_exist);
2838         if (!fullname.empty())
2839                 filename = fullname.absFileName();
2840
2841         if (!fullname.onlyPath().isDirectory()) {
2842                 Alert::warning(_("Invalid filename"),
2843                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
2844                                 from_utf8(fullname.absFileName())));
2845                 return;
2846         }
2847
2848         // if the file doesn't exist and isn't already open (bug 6645),
2849         // let the user create one
2850         if (!fullname.exists() && !theBufferList().exists(fullname) &&
2851             !LyXVC::file_not_found_hook(fullname)) {
2852                 // see bug #12609
2853                 if (origin == FuncRequest::MENU) {
2854                         docstring const & msg =
2855                                 bformat(_("File\n %1$s\n does not exist. Create empty file?"),
2856                                                 from_utf8(filename));
2857                         int ret = Alert::prompt(_("File does not exist"),
2858                                                 msg, 0, 1,
2859                                                 _("&Create File"),
2860                                                 _("&Cancel"));
2861                         if (ret == 1)
2862                                 return;
2863                 }
2864                 Buffer * const b = newFile(filename, string(), true);
2865                 if (b)
2866                         setBuffer(b);
2867                 return;
2868         }
2869
2870         docstring const disp_fn = makeDisplayPath(filename);
2871         message(bformat(_("Opening document %1$s..."), disp_fn));
2872
2873         docstring str2;
2874         Buffer * buf = loadDocument(fullname);
2875         if (buf) {
2876                 str2 = bformat(_("Document %1$s opened."), disp_fn);
2877                 if (buf->lyxvc().inUse())
2878                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
2879                                 " " + _("Version control detected.");
2880         } else {
2881                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
2882         }
2883         message(str2);
2884 }
2885
2886 // FIXME: clean that
2887 static bool import(GuiView * lv, FileName const & filename,
2888         string const & format, ErrorList & errorList)
2889 {
2890         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
2891
2892         string loader_format;
2893         vector<string> loaders = theConverters().loaders();
2894         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
2895                 for (string const & loader : loaders) {
2896                         if (!theConverters().isReachable(format, loader))
2897                                 continue;
2898
2899                         string const tofile =
2900                                 support::changeExtension(filename.absFileName(),
2901                                 theFormats().extension(loader));
2902                         if (theConverters().convert(nullptr, filename, FileName(tofile),
2903                                 filename, format, loader, errorList) != Converters::SUCCESS)
2904                                 return false;
2905                         loader_format = loader;
2906                         break;
2907                 }
2908                 if (loader_format.empty()) {
2909                         frontend::Alert::error(_("Couldn't import file"),
2910                                          bformat(_("No information for importing the format %1$s."),
2911                                          translateIfPossible(theFormats().prettyName(format))));
2912                         return false;
2913                 }
2914         } else
2915                 loader_format = format;
2916
2917         if (loader_format == "lyx") {
2918                 Buffer * buf = lv->loadDocument(lyxfile);
2919                 if (!buf)
2920                         return false;
2921         } else {
2922                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
2923                 if (!b)
2924                         return false;
2925                 lv->setBuffer(b);
2926                 bool as_paragraphs = loader_format == "textparagraph";
2927                 string filename2 = (loader_format == format) ? filename.absFileName()
2928                         : support::changeExtension(filename.absFileName(),
2929                                           theFormats().extension(loader_format));
2930                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
2931                         as_paragraphs);
2932                 guiApp->setCurrentView(lv);
2933                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
2934         }
2935
2936         return true;
2937 }
2938
2939
2940 void GuiView::importDocument(string const & argument)
2941 {
2942         string format;
2943         string filename = split(argument, format, ' ');
2944
2945         LYXERR(Debug::INFO, format << " file: " << filename);
2946
2947         // need user interaction
2948         if (filename.empty()) {
2949                 string initpath = lyxrc.document_path;
2950                 if (documentBufferView()) {
2951                         string const trypath = documentBufferView()->buffer().filePath();
2952                         // If directory is writeable, use this as default.
2953                         if (FileName(trypath).isDirWritable())
2954                                 initpath = trypath;
2955                 }
2956
2957                 docstring const text = bformat(_("Select %1$s file to import"),
2958                         translateIfPossible(theFormats().prettyName(format)));
2959
2960                 FileDialog dlg(toqstr(text));
2961                 dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
2962                 dlg.setButton2(qt_("&Examples"), toqstr(lyxrc.example_path));
2963
2964                 docstring filter = translateIfPossible(theFormats().prettyName(format));
2965                 filter += " (*.{";
2966                 // FIXME UNICODE
2967                 filter += from_utf8(theFormats().extensions(format));
2968                 filter += "})";
2969
2970                 FileDialog::Result result =
2971                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2972
2973                 if (result.first == FileDialog::Later)
2974                         return;
2975
2976                 filename = fromqstr(result.second);
2977
2978                 // check selected filename
2979                 if (filename.empty())
2980                         message(_("Canceled."));
2981         }
2982
2983         if (filename.empty())
2984                 return;
2985
2986         // get absolute path of file
2987         FileName const fullname(support::makeAbsPath(filename));
2988
2989         // Can happen if the user entered a path into the dialog
2990         // (see bug #7437)
2991         if (fullname.onlyFileName().empty()) {
2992                 docstring msg = bformat(_("The file name '%1$s' is invalid!\n"
2993                                           "Aborting import."),
2994                                         from_utf8(fullname.absFileName()));
2995                 frontend::Alert::error(_("File name error"), msg);
2996                 message(_("Canceled."));
2997                 return;
2998         }
2999
3000
3001         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
3002
3003         // Check if the document already is open
3004         Buffer * buf = theBufferList().getBuffer(lyxfile);
3005         if (buf) {
3006                 setBuffer(buf);
3007                 if (!closeBuffer()) {
3008                         message(_("Canceled."));
3009                         return;
3010                 }
3011         }
3012
3013         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
3014
3015         // if the file exists already, and we didn't do
3016         // -i lyx thefile.lyx, warn
3017         if (lyxfile.exists() && fullname != lyxfile) {
3018
3019                 docstring text = bformat(_("The document %1$s already exists.\n\n"
3020                         "Do you want to overwrite that document?"), displaypath);
3021                 int const ret = Alert::prompt(_("Overwrite document?"),
3022                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
3023
3024                 if (ret == 1) {
3025                         message(_("Canceled."));
3026                         return;
3027                 }
3028         }
3029
3030         message(bformat(_("Importing %1$s..."), displaypath));
3031         ErrorList errorList;
3032         if (import(this, fullname, format, errorList))
3033                 message(_("imported."));
3034         else
3035                 message(_("file not imported!"));
3036
3037         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
3038 }
3039
3040
3041 void GuiView::newDocument(string const & filename, string templatefile,
3042                           bool from_template)
3043 {
3044         FileName initpath(lyxrc.document_path);
3045         if (documentBufferView()) {
3046                 FileName const trypath(documentBufferView()->buffer().filePath());
3047                 // If directory is writeable, use this as default.
3048                 if (trypath.isDirWritable())
3049                         initpath = trypath;
3050         }
3051
3052         if (from_template) {
3053                 if (templatefile.empty())
3054                         templatefile =  selectTemplateFile().absFileName();
3055                 if (templatefile.empty())
3056                         return;
3057         }
3058
3059         Buffer * b;
3060         if (filename.empty())
3061                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
3062         else
3063                 b = newFile(filename, templatefile, true);
3064
3065         if (b)
3066                 setBuffer(b);
3067
3068         // If no new document could be created, it is unsure
3069         // whether there is a valid BufferView.
3070         if (currentBufferView())
3071                 // Ensure the cursor is correctly positioned on screen.
3072                 currentBufferView()->showCursor();
3073 }
3074
3075
3076 bool GuiView::insertLyXFile(docstring const & fname, bool ignorelang)
3077 {
3078         BufferView * bv = documentBufferView();
3079         if (!bv)
3080                 return false;
3081
3082         // FIXME UNICODE
3083         FileName filename(to_utf8(fname));
3084         if (filename.empty()) {
3085                 // Launch a file browser
3086                 // FIXME UNICODE
3087                 string initpath = lyxrc.document_path;
3088                 string const trypath = bv->buffer().filePath();
3089                 // If directory is writeable, use this as default.
3090                 if (FileName(trypath).isDirWritable())
3091                         initpath = trypath;
3092
3093                 // FIXME UNICODE
3094                 FileDialog dlg(qt_("Select LyX document to insert"));
3095                 dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
3096                 dlg.setButton2(qt_("&Examples"), toqstr(lyxrc.example_path));
3097
3098                 FileDialog::Result result = dlg.open(toqstr(initpath),
3099                                          QStringList(qt_("LyX Documents (*.lyx)")));
3100
3101                 if (result.first == FileDialog::Later)
3102                         return false;
3103
3104                 // FIXME UNICODE
3105                 filename.set(fromqstr(result.second));
3106
3107                 // check selected filename
3108                 if (filename.empty()) {
3109                         // emit message signal.
3110                         message(_("Canceled."));
3111                         return false;
3112                 }
3113         }
3114
3115         bv->insertLyXFile(filename, ignorelang);
3116         bv->buffer().errors("Parse");
3117         return true;
3118 }
3119
3120
3121 string const GuiView::getTemplatesPath(Buffer & b)
3122 {
3123         // We start off with the user's templates path
3124         string result = addPath(package().user_support().absFileName(), "templates");
3125         // Check for the document language
3126         string const langcode = b.params().language->code();
3127         string const shortcode = langcode.substr(0, 2);
3128         if (!langcode.empty() && shortcode != "en") {
3129                 string subpath = addPath(result, shortcode);
3130                 string subpath_long = addPath(result, langcode);
3131                 // If we have a subdirectory for the language already,
3132                 // navigate there
3133                 FileName sp = FileName(subpath);
3134                 if (sp.isDirectory())
3135                         result = subpath;
3136                 else if (FileName(subpath_long).isDirectory())
3137                         result = subpath_long;
3138                 else {
3139                         // Ask whether we should create such a subdirectory
3140                         docstring const text =
3141                                 bformat(_("It is suggested to save the template in a subdirectory\n"
3142                                           "appropriate to the document language (%1$s).\n"
3143                                           "This subdirectory does not exists yet.\n"
3144                                           "Do you want to create it?"),
3145                                         _(b.params().language->display()));
3146                         if (Alert::prompt(_("Create Language Directory?"),
3147                                           text, 0, 1, _("&Yes, Create"), _("&No, Save Template in Parent Directory")) == 0) {
3148                                 // If the user agreed, we try to create it and report if this failed.
3149                                 if (!sp.createDirectory(0777))
3150                                         Alert::error(_("Subdirectory creation failed!"),
3151                                                      _("Could not create subdirectory.\n"
3152                                                        "The template will be saved in the parent directory."));
3153                                 else
3154                                         result = subpath;
3155                         }
3156                 }
3157         }
3158         // Do we have a layout category?
3159         string const cat = b.params().baseClass() ?
3160                                 b.params().baseClass()->category()
3161                               : string();
3162         if (!cat.empty()) {
3163                 string subpath = addPath(result, cat);
3164                 // If we have a subdirectory for the category already,
3165                 // navigate there
3166                 FileName sp = FileName(subpath);
3167                 if (sp.isDirectory())
3168                         result = subpath;
3169                 else {
3170                         // Ask whether we should create such a subdirectory
3171                         docstring const text =
3172                                 bformat(_("It is suggested to save the template in a subdirectory\n"
3173                                           "appropriate to the layout category (%1$s).\n"
3174                                           "This subdirectory does not exists yet.\n"
3175                                           "Do you want to create it?"),
3176                                         _(cat));
3177                         if (Alert::prompt(_("Create Category Directory?"),
3178                                           text, 0, 1, _("&Yes, Create"), _("&No, Save Template in Parent Directory")) == 0) {
3179                                 // If the user agreed, we try to create it and report if this failed.
3180                                 if (!sp.createDirectory(0777))
3181                                         Alert::error(_("Subdirectory creation failed!"),
3182                                                      _("Could not create subdirectory.\n"
3183                                                        "The template will be saved in the parent directory."));
3184                                 else
3185                                         result = subpath;
3186                         }
3187                 }
3188         }
3189         return result;
3190 }
3191
3192
3193 bool GuiView::renameBuffer(Buffer & b, docstring const & newname, RenameKind kind)
3194 {
3195         FileName fname = b.fileName();
3196         FileName const oldname = fname;
3197         bool const as_template = (kind == LV_WRITE_AS_TEMPLATE);
3198
3199         if (!newname.empty()) {
3200                 // FIXME UNICODE
3201                 if (as_template)
3202                         fname = support::makeAbsPath(to_utf8(newname), getTemplatesPath(b));
3203                 else
3204                         fname = support::makeAbsPath(to_utf8(newname),
3205                                                      oldname.onlyPath().absFileName());
3206         } else {
3207                 // Switch to this Buffer.
3208                 setBuffer(&b);
3209
3210                 // No argument? Ask user through dialog.
3211                 // FIXME UNICODE
3212                 QString const title = as_template ? qt_("Choose a filename to save template as")
3213                                                   : qt_("Choose a filename to save document as");
3214                 FileDialog dlg(title);
3215                 dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
3216                 dlg.setButton2(qt_("&Templates"), toqstr(lyxrc.template_path));
3217
3218                 fname.ensureExtension(".lyx");
3219
3220                 string const path = as_template ?
3221                                         getTemplatesPath(b)
3222                                       : fname.onlyPath().absFileName();
3223                 FileDialog::Result result =
3224                         dlg.save(toqstr(path),
3225                                    QStringList(qt_("LyX Documents (*.lyx)")),
3226                                          toqstr(fname.onlyFileName()));
3227
3228                 if (result.first == FileDialog::Later)
3229                         return false;
3230
3231                 fname.set(fromqstr(result.second));
3232
3233                 if (fname.empty())
3234                         return false;
3235
3236                 fname.ensureExtension(".lyx");
3237         }
3238
3239         // fname is now the new Buffer location.
3240
3241         // if there is already a Buffer open with this name, we do not want
3242         // to have another one. (the second test makes sure we're not just
3243         // trying to overwrite ourselves, which is fine.)
3244         if (theBufferList().exists(fname) && fname != oldname
3245                   && theBufferList().getBuffer(fname) != &b) {
3246                 docstring const text =
3247                         bformat(_("The file\n%1$s\nis already open in your current session.\n"
3248                             "Please close it before attempting to overwrite it.\n"
3249                             "Do you want to choose a new filename?"),
3250                                 from_utf8(fname.absFileName()));
3251                 int const ret = Alert::prompt(_("Chosen File Already Open"),
3252                         text, 0, 1, _("&Rename"), _("&Cancel"));
3253                 switch (ret) {
3254                 case 0: return renameBuffer(b, docstring(), kind);
3255                 case 1: return false;
3256                 }
3257                 //return false;
3258         }
3259
3260         bool const existsLocal = fname.exists();
3261         bool const existsInVC = LyXVC::fileInVC(fname);
3262         if (existsLocal || existsInVC) {
3263                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
3264                 if (kind != LV_WRITE_AS && existsInVC) {
3265                         // renaming to a name that is already in VC
3266                         // would not work
3267                         docstring text = bformat(_("The document %1$s "
3268                                         "is already registered.\n\n"
3269                                         "Do you want to choose a new name?"),
3270                                 file);
3271                         docstring const title = (kind == LV_VC_RENAME) ?
3272                                 _("Rename document?") : _("Copy document?");
3273                         docstring const button = (kind == LV_VC_RENAME) ?
3274                                 _("&Rename") : _("&Copy");
3275                         int const ret = Alert::prompt(title, text, 0, 1,
3276                                 button, _("&Cancel"));
3277                         switch (ret) {
3278                         case 0: return renameBuffer(b, docstring(), kind);
3279                         case 1: return false;
3280                         }
3281                 }
3282
3283                 if (existsLocal) {
3284                         docstring text = bformat(_("The document %1$s "
3285                                         "already exists.\n\n"
3286                                         "Do you want to overwrite that document?"),
3287                                 file);
3288                         int const ret = Alert::prompt(_("Overwrite document?"),
3289                                         text, 0, 2, _("&Overwrite"),
3290                                         _("&Rename"), _("&Cancel"));
3291                         switch (ret) {
3292                         case 0: break;
3293                         case 1: return renameBuffer(b, docstring(), kind);
3294                         case 2: return false;
3295                         }
3296                 }
3297         }
3298
3299         switch (kind) {
3300         case LV_VC_RENAME: {
3301                 string msg = b.lyxvc().rename(fname);
3302                 if (msg.empty())
3303                         return false;
3304                 message(from_utf8(msg));
3305                 break;
3306         }
3307         case LV_VC_COPY: {
3308                 string msg = b.lyxvc().copy(fname);
3309                 if (msg.empty())
3310                         return false;
3311                 message(from_utf8(msg));
3312                 break;
3313         }
3314         case LV_WRITE_AS:
3315         case LV_WRITE_AS_TEMPLATE:
3316                 break;
3317         }
3318         // LyXVC created the file already in case of LV_VC_RENAME or
3319         // LV_VC_COPY, but call saveBuffer() nevertheless to get
3320         // relative paths of included stuff right if we moved e.g. from
3321         // /a/b.lyx to /a/c/b.lyx.
3322
3323         bool const saved = saveBuffer(b, fname);
3324         if (saved)
3325                 b.reload();
3326         return saved;
3327 }
3328
3329
3330 bool GuiView::exportBufferAs(Buffer & b, docstring const & iformat)
3331 {
3332         FileName fname = b.fileName();
3333
3334         FileDialog dlg(qt_("Choose a filename to export the document as"));
3335         dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
3336
3337         QStringList types;
3338         QString const anyformat = qt_("Guess from extension (*.*)");
3339         types << anyformat;
3340
3341         vector<Format const *> export_formats;
3342         for (Format const & f : theFormats())
3343                 if (f.documentFormat())
3344                         export_formats.push_back(&f);
3345         sort(export_formats.begin(), export_formats.end(), Format::formatSorter);
3346         map<QString, string> fmap;
3347         QString filter;
3348         string ext;
3349         for (Format const * f : export_formats) {
3350                 docstring const loc_prettyname = translateIfPossible(f->prettyname());
3351                 QString const loc_filter = toqstr(bformat(from_ascii("%1$s (*.%2$s)"),
3352                                                      loc_prettyname,
3353                                                      from_ascii(f->extension())));
3354                 types << loc_filter;
3355                 fmap[loc_filter] = f->name();
3356                 if (from_ascii(f->name()) == iformat) {
3357                         filter = loc_filter;
3358                         ext = f->extension();
3359                 }
3360         }
3361         string ofname = fname.onlyFileName();
3362         if (!ext.empty())
3363                 ofname = support::changeExtension(ofname, ext);
3364         FileDialog::Result result =
3365                 dlg.save(toqstr(fname.onlyPath().absFileName()),
3366                          types,
3367                          toqstr(ofname),
3368                          &filter);
3369         if (result.first != FileDialog::Chosen)
3370                 return false;
3371
3372         string fmt_name;
3373         fname.set(fromqstr(result.second));
3374         if (filter == anyformat)
3375                 fmt_name = theFormats().getFormatFromExtension(fname.extension());
3376         else
3377                 fmt_name = fmap[filter];
3378         LYXERR(Debug::FILES, "filter=" << fromqstr(filter)
3379                << ", fmt_name=" << fmt_name << ", fname=" << fname.absFileName());
3380
3381         if (fmt_name.empty() || fname.empty())
3382                 return false;
3383
3384         fname.ensureExtension(theFormats().extension(fmt_name));
3385
3386         // fname is now the new Buffer location.
3387         if (fname.exists()) {
3388                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
3389                 docstring text = bformat(_("The document %1$s already "
3390                                            "exists.\n\nDo you want to "
3391                                            "overwrite that document?"),
3392                                          file);
3393                 int const ret = Alert::prompt(_("Overwrite document?"),
3394                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
3395                 switch (ret) {
3396                 case 0: break;
3397                 case 1: return exportBufferAs(b, from_ascii(fmt_name));
3398                 case 2: return false;
3399                 }
3400         }
3401
3402         FuncRequest cmd(LFUN_BUFFER_EXPORT, fmt_name + " " + fname.absFileName());
3403         DispatchResult dr;
3404         dispatch(cmd, dr);
3405         return dr.dispatched();
3406 }
3407
3408
3409 bool GuiView::saveBuffer(Buffer & b)
3410 {
3411         return saveBuffer(b, FileName());
3412 }
3413
3414
3415 bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
3416 {
3417         if (workArea(b) && workArea(b)->inDialogMode())
3418                 return true;
3419
3420         if (fn.empty() && b.isUnnamed())
3421                 return renameBuffer(b, docstring());
3422
3423         bool const success = (fn.empty() ? b.save() : b.saveAs(fn));
3424         if (success) {
3425                 theSession().lastFiles().add(b.fileName());
3426                 theSession().writeFile();
3427                 return true;
3428         }
3429
3430         // Switch to this Buffer.
3431         setBuffer(&b);
3432
3433         // FIXME: we don't tell the user *WHY* the save failed !!
3434         docstring const file = makeDisplayPath(b.absFileName(), 30);
3435         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
3436                                    "Do you want to rename the document and "
3437                                    "try again?"), file);
3438         int const ret = Alert::prompt(_("Rename and save?"),
3439                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
3440         switch (ret) {
3441         case 0:
3442                 if (!renameBuffer(b, docstring()))
3443                         return false;
3444                 break;
3445         case 1:
3446                 break;
3447         case 2:
3448                 return false;
3449         }
3450
3451         return saveBuffer(b, fn);
3452 }
3453
3454
3455 bool GuiView::hideWorkArea(GuiWorkArea * wa)
3456 {
3457         return closeWorkArea(wa, false);
3458 }
3459
3460
3461 // We only want to close the buffer if it is not visible in other workareas
3462 // of the same view, nor in other views, and if this is not a child
3463 bool GuiView::closeWorkArea(GuiWorkArea * wa)
3464 {
3465         Buffer & buf = wa->bufferView().buffer();
3466
3467         bool last_wa = d.countWorkAreasOf(buf) == 1
3468                 && !inOtherView(buf) && !buf.parent();
3469
3470         bool close_buffer = last_wa;
3471
3472         if (last_wa) {
3473                 if (lyxrc.close_buffer_with_last_view == "yes")
3474                         ; // Nothing to do
3475                 else if (lyxrc.close_buffer_with_last_view == "no")
3476                         close_buffer = false;
3477                 else {
3478                         docstring file;
3479                         if (buf.isUnnamed())
3480                                 file = from_utf8(buf.fileName().onlyFileName());
3481                         else
3482                                 file = buf.fileName().displayName(30);
3483                         docstring const text = bformat(
3484                                 _("Last view on document %1$s is being closed.\n"
3485                                   "Would you like to close or hide the document?\n"
3486                                   "\n"
3487                                   "Hidden documents can be displayed back through\n"
3488                                   "the menu: View->Hidden->...\n"
3489                                   "\n"
3490                                   "To remove this question, set your preference in:\n"
3491                                   "  Tools->Preferences->Look&Feel->UserInterface\n"
3492                                 ), file);
3493                         int ret = Alert::prompt(_("Close or hide document?"),
3494                                 text, 0, 2, _("&Close"), _("&Hide"), _("&Cancel"));
3495                         if (ret == 2)
3496                                 return false;
3497                         close_buffer = (ret == 0);
3498                 }
3499         }
3500
3501         return closeWorkArea(wa, close_buffer);
3502 }
3503
3504
3505 bool GuiView::closeBuffer()
3506 {
3507         GuiWorkArea * wa = currentMainWorkArea();
3508         // coverity complained about this
3509         // it seems unnecessary, but perhaps is worth the check
3510         LASSERT(wa, return false);
3511
3512         setCurrentWorkArea(wa);
3513         Buffer & buf = wa->bufferView().buffer();
3514         return closeWorkArea(wa, !buf.parent());
3515 }
3516
3517
3518 void GuiView::writeSession() const {
3519         GuiWorkArea const * active_wa = currentMainWorkArea();
3520         for (int i = 0; i < d.splitter_->count(); ++i) {
3521                 TabWorkArea * twa = d.tabWorkArea(i);
3522                 for (int j = 0; j < twa->count(); ++j) {
3523                         GuiWorkArea * wa = twa->workArea(j);
3524                         Buffer & buf = wa->bufferView().buffer();
3525                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
3526                 }
3527         }
3528 }
3529
3530
3531 bool GuiView::closeBufferAll()
3532 {
3533
3534         for (auto & buf : theBufferList()) {
3535                 if (!saveBufferIfNeeded(*buf, false)) {
3536                         // Closing has been cancelled, so abort.
3537                         return false;
3538                 }
3539         }
3540
3541         // Close the workareas in all other views
3542         QList<int> const ids = guiApp->viewIds();
3543         for (int i = 0; i != ids.size(); ++i) {
3544                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
3545                         return false;
3546         }
3547
3548         // Close our own workareas
3549         if (!closeWorkAreaAll())
3550                 return false;
3551
3552         return true;
3553 }
3554
3555
3556 bool GuiView::closeWorkAreaAll()
3557 {
3558         setCurrentWorkArea(currentMainWorkArea());
3559
3560         // We might be in a situation that there is still a tabWorkArea, but
3561         // there are no tabs anymore. This can happen when we get here after a
3562         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
3563         // many TabWorkArea's have no documents anymore.
3564         int empty_twa = 0;
3565
3566         // We have to call count() each time, because it can happen that
3567         // more than one splitter will disappear in one iteration (bug 5998).
3568         while (d.splitter_->count() > empty_twa) {
3569                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
3570
3571                 if (twa->count() == 0)
3572                         ++empty_twa;
3573                 else {
3574                         setCurrentWorkArea(twa->currentWorkArea());
3575                         if (!closeTabWorkArea(twa))
3576                                 return false;
3577                 }
3578         }
3579         return true;
3580 }
3581
3582
3583 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
3584 {
3585         if (!wa)
3586                 return false;
3587
3588         Buffer & buf = wa->bufferView().buffer();
3589
3590         if (GuiViewPrivate::busyBuffers.contains(&buf)) {
3591                 Alert::warning(_("Close document"),
3592                         _("Document could not be closed because it is being processed by LyX."));
3593                 return false;
3594         }
3595
3596         if (close_buffer)
3597                 return closeBuffer(buf);
3598         else {
3599                 if (!inMultiTabs(wa))
3600                         if (!saveBufferIfNeeded(buf, true))
3601                                 return false;
3602                 removeWorkArea(wa);
3603                 return true;
3604         }
3605 }
3606
3607
3608 bool GuiView::closeBuffer(Buffer & buf)
3609 {
3610         bool success = true;
3611         for (Buffer * child_buf : buf.getChildren()) {
3612                 if (theBufferList().isOthersChild(&buf, child_buf)) {
3613                         child_buf->setParent(nullptr);
3614                         continue;
3615                 }
3616
3617                 // FIXME: should we look in other tabworkareas?
3618                 // ANSWER: I don't think so. I've tested, and if the child is
3619                 // open in some other window, it closes without a problem.
3620                 GuiWorkArea * child_wa = workArea(*child_buf);
3621                 if (child_wa) {
3622                         if (closing_)
3623                                 // If we are in a close_event all children will be closed in some time,
3624                                 // so no need to do it here. This will ensure that the children end up
3625                                 // in the session file in the correct order. If we close the master
3626                                 // buffer, we can close or release the child buffers here too.
3627                                 continue;
3628                         success = closeWorkArea(child_wa, true);
3629                         if (!success)
3630                                 break;
3631                 } else {
3632                         // In this case the child buffer is open but hidden.
3633                         // Even in this case, children can be dirty (e.g.,
3634                         // after a label change in the master, see #11405).
3635                         // Therefore, check this
3636                         if (closing_ && (child_buf->isClean() || child_buf->paragraphs().empty())) {
3637                                 // If we are in a close_event all children will be closed in some time,
3638                                 // so no need to do it here. This will ensure that the children end up
3639                                 // in the session file in the correct order. If we close the master
3640                                 // buffer, we can close or release the child buffers here too.
3641                                 continue;
3642                         }
3643                         // Save dirty buffers also if closing_!
3644                         if (saveBufferIfNeeded(*child_buf, false)) {
3645                                 child_buf->removeAutosaveFile();
3646                                 theBufferList().release(child_buf);
3647                         } else {
3648                                 // Saving of dirty children has been cancelled.
3649                                 // Cancel the whole process.
3650                                 success = false;
3651                                 break;
3652                         }
3653                 }
3654         }
3655         if (success) {
3656                 // goto bookmark to update bookmark pit.
3657                 // FIXME: we should update only the bookmarks related to this buffer!
3658                 // FIXME: this is done also in LFUN_WINDOW_CLOSE!
3659                 LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
3660                 for (unsigned int i = 1; i < theSession().bookmarks().size(); ++i)
3661                         guiApp->gotoBookmark(i, false, false);
3662
3663                 if (saveBufferIfNeeded(buf, false)) {
3664                         buf.removeAutosaveFile();
3665                         theBufferList().release(&buf);
3666                         return true;
3667                 }
3668         }
3669         // open all children again to avoid a crash because of dangling
3670         // pointers (bug 6603)
3671         buf.updateBuffer();
3672         return false;
3673 }
3674
3675
3676 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
3677 {
3678         while (twa == d.currentTabWorkArea()) {
3679                 twa->setCurrentIndex(twa->count() - 1);
3680
3681                 GuiWorkArea * wa = twa->currentWorkArea();
3682                 Buffer & b = wa->bufferView().buffer();
3683
3684                 // We only want to close the buffer if the same buffer is not visible
3685                 // in another view, and if this is not a child and if we are closing
3686                 // a view (not a tabgroup).
3687                 bool const close_buffer =
3688                         !inOtherView(b) && !b.parent() && closing_;
3689
3690                 if (!closeWorkArea(wa, close_buffer))
3691                         return false;
3692         }
3693         return true;
3694 }
3695
3696
3697 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
3698 {
3699         if (buf.isClean() || buf.paragraphs().empty())
3700                 return true;
3701
3702         // Switch to this Buffer.
3703         setBuffer(&buf);
3704
3705         docstring file;
3706         bool exists;
3707         // FIXME: Unicode?
3708         if (buf.isUnnamed()) {
3709                 file = from_utf8(buf.fileName().onlyFileName());
3710                 exists = false;
3711         } else {
3712                 FileName filename = buf.fileName();
3713                 filename.refresh();
3714                 file = filename.displayName(30);
3715                 exists = filename.exists();
3716         }
3717
3718         // Bring this window to top before asking questions.
3719         raise();
3720         activateWindow();
3721
3722         int ret;
3723         if (hiding && buf.isUnnamed()) {
3724                 docstring const text = bformat(_("The document %1$s has not been "
3725                                                  "saved yet.\n\nDo you want to save "
3726                                                  "the document?"), file);
3727                 ret = Alert::prompt(_("Save new document?"),
3728                         text, 0, 1, _("&Save"), _("&Cancel"));
3729                 if (ret == 1)
3730                         ++ret;
3731         } else {
3732                 docstring const text = exists ?
3733                         bformat(_("The document %1$s has unsaved changes."
3734                                   "\n\nDo you want to save the document or "
3735                                   "discard the changes?"), file) :
3736                         bformat(_("The document %1$s has not been saved yet."
3737                                   "\n\nDo you want to save the document or "
3738                                   "discard it entirely?"), file);
3739                 docstring const title = exists ?
3740                         _("Save changed document?") : _("Save document?");
3741                 ret = Alert::prompt(title, text, 0, 2,
3742                                     _("&Save"), _("&Discard"), _("&Cancel"));
3743         }
3744
3745         switch (ret) {
3746         case 0:
3747                 if (!saveBuffer(buf))
3748                         return false;
3749                 break;
3750         case 1:
3751                 // If we crash after this we could have no autosave file
3752                 // but I guess this is really improbable (Jug).
3753                 // Sometimes improbable things happen:
3754                 // - see bug http://www.lyx.org/trac/ticket/6587 (ps)
3755                 // buf.removeAutosaveFile();
3756                 if (hiding)
3757                         // revert all changes
3758                         reloadBuffer(buf);
3759                 buf.markClean();
3760                 break;
3761         case 2:
3762                 return false;
3763         }
3764         return true;
3765 }
3766
3767
3768 bool GuiView::inMultiTabs(GuiWorkArea * wa)
3769 {
3770         Buffer & buf = wa->bufferView().buffer();
3771
3772         for (int i = 0; i != d.splitter_->count(); ++i) {
3773                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
3774                 if (wa_ && wa_ != wa)
3775                         return true;
3776         }
3777         return inOtherView(buf);
3778 }
3779
3780
3781 bool GuiView::inOtherView(Buffer & buf)
3782 {
3783         QList<int> const ids = guiApp->viewIds();
3784
3785         for (int i = 0; i != ids.size(); ++i) {
3786                 if (id_ == ids[i])
3787                         continue;
3788
3789                 if (guiApp->view(ids[i]).workArea(buf))
3790                         return true;
3791         }
3792         return false;
3793 }
3794
3795
3796 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move)
3797 {
3798         if (!documentBufferView())
3799                 return;
3800
3801         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3802                 Buffer * const curbuf = &documentBufferView()->buffer();
3803                 int nwa = twa->count();
3804                 for (int i = 0; i < nwa; ++i) {
3805                         if (&workArea(i)->bufferView().buffer() == curbuf) {
3806                                 int next_index;
3807                                 if (np == NEXT)
3808                                         next_index = (i == nwa - 1 ? 0 : i + 1);
3809                                 else
3810                                         next_index = (i == 0 ? nwa - 1 : i - 1);
3811                                 if (move)
3812                                         twa->moveTab(i, next_index);
3813                                 else
3814                                         setBuffer(&workArea(next_index)->bufferView().buffer());
3815                                 break;
3816                         }
3817                 }
3818         }
3819 }
3820
3821
3822 void GuiView::gotoNextTabWorkArea(NextOrPrevious np)
3823 {
3824         int count = d.splitter_->count();
3825         for (int i = 0; i < count; ++i) {
3826                 if (d.tabWorkArea(i) == d.currentTabWorkArea()) {
3827                         int new_index;
3828                         if (np == NEXT)
3829                                 new_index = (i == count - 1 ? 0 : i + 1);
3830                         else
3831                                 new_index = (i == 0 ? count - 1 : i - 1);
3832                         setCurrentWorkArea(d.tabWorkArea(new_index)->currentWorkArea());
3833                         break;
3834                 }
3835         }
3836 }
3837
3838
3839 /// make sure the document is saved
3840 static bool ensureBufferClean(Buffer * buffer)
3841 {
3842         LASSERT(buffer, return false);
3843         if (buffer->isClean() && !buffer->isUnnamed())
3844                 return true;
3845
3846         docstring const file = buffer->fileName().displayName(30);
3847         docstring title;
3848         docstring text;
3849         if (!buffer->isUnnamed()) {
3850                 text = bformat(_("The document %1$s has unsaved "
3851                                                  "changes.\n\nDo you want to save "
3852                                                  "the document?"), file);
3853                 title = _("Save changed document?");
3854
3855         } else {
3856                 text = bformat(_("The document %1$s has not been "
3857                                                  "saved yet.\n\nDo you want to save "
3858                                                  "the document?"), file);
3859                 title = _("Save new document?");
3860         }
3861         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
3862
3863         if (ret == 0)
3864                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
3865
3866         return buffer->isClean() && !buffer->isUnnamed();
3867 }
3868
3869
3870 bool GuiView::reloadBuffer(Buffer & buf)
3871 {
3872         currentBufferView()->cursor().reset();
3873         Buffer::ReadStatus status = buf.reload();
3874         return status == Buffer::ReadSuccess;
3875 }
3876
3877
3878 void GuiView::checkExternallyModifiedBuffers()
3879 {
3880         for (Buffer * buf : theBufferList()) {
3881                 if (buf->fileName().exists() && buf->isChecksumModified()) {
3882                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
3883                                         " Reload now? Any local changes will be lost."),
3884                                         from_utf8(buf->absFileName()));
3885                         int const ret = Alert::prompt(_("Reload externally changed document?"),
3886                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
3887                         if (!ret)
3888                                 reloadBuffer(*buf);
3889                 }
3890         }
3891 }
3892
3893
3894 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
3895 {
3896         Buffer * buffer = documentBufferView()
3897                 ? &(documentBufferView()->buffer()) : nullptr;
3898
3899         switch (cmd.action()) {
3900         case LFUN_VC_REGISTER:
3901                 if (!buffer || !ensureBufferClean(buffer))
3902                         break;
3903                 if (!buffer->lyxvc().inUse()) {
3904                         if (buffer->lyxvc().registrer()) {
3905                                 reloadBuffer(*buffer);
3906                                 dr.clearMessageUpdate();
3907                         }
3908                 }
3909                 break;
3910
3911         case LFUN_VC_RENAME:
3912         case LFUN_VC_COPY: {
3913                 if (!buffer || !ensureBufferClean(buffer))
3914                         break;
3915                 if (buffer->lyxvc().inUse() && !buffer->hasReadonlyFlag()) {
3916                         if (buffer->lyxvc().isCheckInWithConfirmation()) {
3917                                 // Some changes are not yet committed.
3918                                 // We test here and not in getStatus(), since
3919                                 // this test is expensive.
3920                                 string log;
3921                                 LyXVC::CommandResult ret =
3922                                         buffer->lyxvc().checkIn(log);
3923                                 dr.setMessage(log);
3924                                 if (ret == LyXVC::ErrorCommand ||
3925                                     ret == LyXVC::VCSuccess)
3926                                         reloadBuffer(*buffer);
3927                                 if (buffer->lyxvc().isCheckInWithConfirmation()) {
3928                                         frontend::Alert::error(
3929                                                 _("Revision control error."),
3930                                                 _("Document could not be checked in."));
3931                                         break;
3932                                 }
3933                         }
3934                         RenameKind const kind = (cmd.action() == LFUN_VC_RENAME) ?
3935                                 LV_VC_RENAME : LV_VC_COPY;
3936                         renameBuffer(*buffer, cmd.argument(), kind);
3937                 }
3938                 break;
3939         }
3940
3941         case LFUN_VC_CHECK_IN:
3942                 if (!buffer || !ensureBufferClean(buffer))
3943                         break;
3944                 if (buffer->lyxvc().inUse() && !buffer->hasReadonlyFlag()) {
3945                         string log;
3946                         LyXVC::CommandResult ret = buffer->lyxvc().checkIn(log);
3947                         dr.setMessage(log);
3948                         // Only skip reloading if the checkin was cancelled or
3949                         // an error occurred before the real checkin VCS command
3950                         // was executed, since the VCS might have changed the
3951                         // file even if it could not checkin successfully.
3952                         if (ret == LyXVC::ErrorCommand || ret == LyXVC::VCSuccess)
3953                                 reloadBuffer(*buffer);
3954                 }
3955                 break;
3956
3957         case LFUN_VC_CHECK_OUT:
3958                 if (!buffer || !ensureBufferClean(buffer))
3959                         break;
3960                 if (buffer->lyxvc().inUse()) {
3961                         dr.setMessage(buffer->lyxvc().checkOut());
3962                         reloadBuffer(*buffer);
3963                 }
3964                 break;
3965
3966         case LFUN_VC_LOCKING_TOGGLE:
3967                 if (!buffer || !ensureBufferClean(buffer) || buffer->hasReadonlyFlag())
3968                         break;
3969                 if (buffer->lyxvc().inUse()) {
3970                         string res = buffer->lyxvc().lockingToggle();
3971                         if (res.empty()) {
3972                                 frontend::Alert::error(_("Revision control error."),
3973                                 _("Error when setting the locking property."));
3974                         } else {
3975                                 dr.setMessage(res);
3976                                 reloadBuffer(*buffer);
3977                         }
3978                 }
3979                 break;
3980
3981         case LFUN_VC_REVERT:
3982                 if (!buffer)
3983                         break;
3984                 if (buffer->lyxvc().revert()) {
3985                         reloadBuffer(*buffer);
3986                         dr.clearMessageUpdate();
3987                 }
3988                 break;
3989
3990         case LFUN_VC_UNDO_LAST:
3991                 if (!buffer)
3992                         break;
3993                 buffer->lyxvc().undoLast();
3994                 reloadBuffer(*buffer);
3995                 dr.clearMessageUpdate();
3996                 break;
3997
3998         case LFUN_VC_REPO_UPDATE:
3999                 if (!buffer)
4000                         break;
4001                 if (ensureBufferClean(buffer)) {
4002                         dr.setMessage(buffer->lyxvc().repoUpdate());
4003                         checkExternallyModifiedBuffers();
4004                 }
4005                 break;
4006
4007         case LFUN_VC_COMMAND: {
4008                 string flag = cmd.getArg(0);
4009                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
4010                         break;
4011                 docstring message;
4012                 if (contains(flag, 'M')) {
4013                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
4014                                 break;
4015                 }
4016                 string path = cmd.getArg(1);
4017                 if (contains(path, "$$p") && buffer)
4018                         path = subst(path, "$$p", buffer->filePath());
4019                 LYXERR(Debug::LYXVC, "Directory: " << path);
4020                 FileName pp(path);
4021                 if (!pp.isReadableDirectory()) {
4022                         lyxerr << _("Directory is not accessible.") << endl;
4023                         break;
4024                 }
4025                 support::PathChanger p(pp);
4026
4027                 string command = cmd.getArg(2);
4028                 if (command.empty())
4029                         break;
4030                 if (buffer) {
4031                         command = subst(command, "$$i", buffer->absFileName());
4032                         command = subst(command, "$$p", buffer->filePath());
4033                 }
4034                 command = subst(command, "$$m", to_utf8(message));
4035                 LYXERR(Debug::LYXVC, "Command: " << command);
4036                 Systemcall one;
4037                 one.startscript(Systemcall::Wait, command);
4038
4039                 if (!buffer)
4040                         break;
4041                 if (contains(flag, 'I'))
4042                         buffer->markDirty();
4043                 if (contains(flag, 'R'))
4044                         reloadBuffer(*buffer);
4045
4046                 break;
4047                 }
4048
4049         case LFUN_VC_COMPARE: {
4050                 if (cmd.argument().empty()) {
4051                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
4052                         break;
4053                 }
4054                 if (!buffer)
4055                         break;
4056
4057                 string rev1 = cmd.getArg(0);
4058                 string f1, f2;
4059
4060                 // f1
4061                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
4062                         break;
4063
4064                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
4065                         f2 = buffer->absFileName();
4066                 } else {
4067                         string rev2 = cmd.getArg(1);
4068                         if (rev2.empty())
4069                                 break;
4070                         // f2
4071                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
4072                                 break;
4073                 }
4074
4075                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
4076                                         f1 << "\n"  << f2 << "\n" );
4077                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
4078                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
4079                 break;
4080         }
4081
4082         default:
4083                 break;
4084         }
4085 }
4086
4087
4088 void GuiView::openChildDocument(string const & fname)
4089 {
4090         LASSERT(documentBufferView(), return);
4091         Buffer & buffer = documentBufferView()->buffer();
4092         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
4093         documentBufferView()->saveBookmark(false);
4094         Buffer * child = nullptr;
4095         if (theBufferList().exists(filename)) {
4096                 child = theBufferList().getBuffer(filename);
4097                 setBuffer(child);
4098         } else {
4099                 message(bformat(_("Opening child document %1$s..."),
4100                         makeDisplayPath(filename.absFileName())));
4101                 child = loadDocument(filename, false);
4102         }
4103         // Set the parent name of the child document.
4104         // This makes insertion of citations and references in the child work,
4105         // when the target is in the parent or another child document.
4106         if (child)
4107                 child->setParent(&buffer);
4108 }
4109
4110
4111 bool GuiView::goToFileRow(string const & argument)
4112 {
4113         string file_name;
4114         int row = -1;
4115         size_t i = argument.find_last_of(' ');
4116         if (i != string::npos) {
4117                 file_name = os::internal_path(FileName(trim(argument.substr(0, i))).realPath());
4118                 istringstream is(argument.substr(i + 1));
4119                 is >> row;
4120                 if (is.fail())
4121                         i = string::npos;
4122         }
4123         if (i == string::npos) {
4124                 LYXERR0("Wrong argument: " << argument);
4125                 return false;
4126         }
4127         Buffer * buf = nullptr;
4128         string const realtmp = package().temp_dir().realPath();
4129         // We have to use os::path_prefix_is() here, instead of
4130         // simply prefixIs(), because the file name comes from
4131         // an external application and may need case adjustment.
4132         if (os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
4133                 buf = theBufferList().getBufferFromTmp(file_name, true);
4134                 LYXERR(Debug::FILES, "goToFileRow: buffer lookup for " << file_name
4135                            << (buf ? " success" : " failed"));
4136         } else {
4137                 // Must replace extension of the file to be .lyx
4138                 // and get full path
4139                 FileName const s = fileSearch(string(),
4140                                                   support::changeExtension(file_name, ".lyx"), "lyx");
4141                 // Either change buffer or load the file
4142                 if (theBufferList().exists(s))
4143                         buf = theBufferList().getBuffer(s);
4144                 else if (s.exists()) {
4145                         buf = loadDocument(s);
4146                         if (!buf)
4147                                 return false;
4148                 } else {
4149                         message(bformat(
4150                                         _("File does not exist: %1$s"),
4151                                         makeDisplayPath(file_name)));
4152                         return false;
4153                 }
4154         }
4155         if (!buf) {
4156                 message(bformat(
4157                         _("No buffer for file: %1$s."),
4158                         makeDisplayPath(file_name))
4159                 );
4160                 return false;
4161         }
4162         setBuffer(buf);
4163         bool success = documentBufferView()->setCursorFromRow(row);
4164         if (!success) {
4165                 LYXERR(Debug::OUTFILE,
4166                        "setCursorFromRow: invalid position for row " << row);
4167                 frontend::Alert::error(_("Inverse Search Failed"),
4168                                        _("Invalid position requested by inverse search.\n"
4169                                          "You may need to update the viewed document."));
4170         }
4171         return success;
4172 }
4173
4174
4175 template<class T>
4176 Buffer::ExportStatus GuiView::GuiViewPrivate::runAndDestroy(const T& func,
4177                 Buffer const * orig, Buffer * clone, string const & format)
4178 {
4179         Buffer::ExportStatus const status = func(format);
4180
4181         // the cloning operation will have produced a clone of the entire set of
4182         // documents, starting from the master. so we must delete those.
4183         Buffer * mbuf = const_cast<Buffer *>(clone->masterBuffer());
4184         delete mbuf;
4185         busyBuffers.remove(orig);
4186         return status;
4187 }
4188
4189
4190 Buffer::ExportStatus GuiView::GuiViewPrivate::compileAndDestroy(
4191                 Buffer const * orig, Buffer * clone, string const & format)
4192 {
4193         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const =
4194                         &Buffer::doExport;
4195         return runAndDestroy(lyx::bind(mem_func, clone, _1, true), orig, clone, format);
4196 }
4197
4198
4199 Buffer::ExportStatus GuiView::GuiViewPrivate::exportAndDestroy(
4200                 Buffer const * orig, Buffer * clone, string const & format)
4201 {
4202         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const =
4203                         &Buffer::doExport;
4204         return runAndDestroy(lyx::bind(mem_func, clone, _1, false), orig, clone, format);
4205 }
4206
4207
4208 Buffer::ExportStatus GuiView::GuiViewPrivate::previewAndDestroy(
4209                 Buffer const * orig, Buffer * clone, string const & format)
4210 {
4211         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &) const =
4212                         &Buffer::preview;
4213         return runAndDestroy(lyx::bind(mem_func, clone, _1), orig, clone, format);
4214 }
4215
4216
4217 bool GuiView::GuiViewPrivate::asyncBufferProcessing(string const & argument,
4218                            Buffer const * used_buffer,
4219                            docstring const & msg,
4220                            Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
4221                            Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
4222                            Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const,
4223                            bool allow_async, bool use_tmpdir)
4224 {
4225         if (!used_buffer)
4226                 return false;
4227
4228         string format = argument;
4229         if (format.empty())
4230                 format = used_buffer->params().getDefaultOutputFormat();
4231         processing_format = format;
4232         if (!msg.empty()) {
4233                 progress_->clearMessages();
4234                 gv_->message(msg);
4235         }
4236 #if EXPORT_in_THREAD
4237         if (allow_async) {
4238                 GuiViewPrivate::busyBuffers.insert(used_buffer);
4239                 Buffer * cloned_buffer = used_buffer->cloneWithChildren();
4240                 if (!cloned_buffer) {
4241                         Alert::error(_("Export Error"),
4242                                      _("Error cloning the Buffer."));
4243                         return false;
4244                 }
4245                 QFuture<Buffer::ExportStatus> f = QtConcurrent::run(
4246                                         asyncFunc,
4247                                         used_buffer,
4248                                         cloned_buffer,
4249                                         format);
4250                 setPreviewFuture(f);
4251                 last_export_format = used_buffer->params().bufferFormat();
4252                 (void) syncFunc;
4253                 (void) previewFunc;
4254                 // We are asynchronous, so we don't know here anything about the success
4255                 return true;
4256         } else {
4257                 Buffer::ExportStatus status;
4258                 if (syncFunc) {
4259                         status = (used_buffer->*syncFunc)(format, use_tmpdir);
4260                 } else if (previewFunc) {
4261                         status = (used_buffer->*previewFunc)(format);
4262                 } else
4263                         return false;
4264                 handleExportStatus(gv_, status, format);
4265                 (void) asyncFunc;
4266                 return (status == Buffer::ExportSuccess
4267                                 || status == Buffer::PreviewSuccess);
4268         }
4269 #else
4270         (void) allow_async;
4271         Buffer::ExportStatus status;
4272         if (syncFunc) {
4273                 status = (used_buffer->*syncFunc)(format, true);
4274         } else if (previewFunc) {
4275                 status = (used_buffer->*previewFunc)(format);
4276         } else
4277                 return false;
4278         handleExportStatus(gv_, status, format);
4279         (void) asyncFunc;
4280         return (status == Buffer::ExportSuccess
4281                         || status == Buffer::PreviewSuccess);
4282 #endif
4283 }
4284
4285 void GuiView::dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr)
4286 {
4287         BufferView * bv = currentBufferView();
4288         LASSERT(bv, return);
4289
4290         // Let the current BufferView dispatch its own actions.
4291         bv->dispatch(cmd, dr);
4292         if (dr.dispatched()) {
4293                 if (cmd.action() == LFUN_REDO || cmd.action() == LFUN_UNDO)
4294                         updateDialog("document", "");
4295                 return;
4296         }
4297
4298         // Try with the document BufferView dispatch if any.
4299         BufferView * doc_bv = documentBufferView();
4300         if (doc_bv && doc_bv != bv) {
4301                 doc_bv->dispatch(cmd, dr);
4302                 if (dr.dispatched()) {
4303                         if (cmd.action() == LFUN_REDO || cmd.action() == LFUN_UNDO)
4304                                 updateDialog("document", "");
4305                         return;
4306                 }
4307         }
4308
4309         // Then let the current Cursor dispatch its own actions.
4310         bv->cursor().dispatch(cmd);
4311
4312         // update completion. We do it here and not in
4313         // processKeySym to avoid another redraw just for a
4314         // changed inline completion
4315         if (cmd.origin() == FuncRequest::KEYBOARD) {
4316                 if (cmd.action() == LFUN_SELF_INSERT
4317                         || (cmd.action() == LFUN_ERT_INSERT && bv->cursor().inMathed()))
4318                         updateCompletion(bv->cursor(), true, true);
4319                 else if (cmd.action() == LFUN_CHAR_DELETE_BACKWARD)
4320                         updateCompletion(bv->cursor(), false, true);
4321                 else
4322                         updateCompletion(bv->cursor(), false, false);
4323         }
4324
4325         dr = bv->cursor().result();
4326 }
4327
4328
4329 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
4330 {
4331         BufferView * bv = currentBufferView();
4332         // By default we won't need any update.
4333         dr.screenUpdate(Update::None);
4334         // assume cmd will be dispatched
4335         dr.dispatched(true);
4336
4337         Buffer * doc_buffer = documentBufferView()
4338                 ? &(documentBufferView()->buffer()) : nullptr;
4339
4340         if (cmd.origin() == FuncRequest::TOC) {
4341                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
4342                 toc->doDispatch(bv->cursor(), cmd, dr);
4343                 return;
4344         }
4345
4346         string const argument = to_utf8(cmd.argument());
4347
4348         switch(cmd.action()) {
4349                 case LFUN_BUFFER_CHILD_OPEN:
4350                         openChildDocument(to_utf8(cmd.argument()));
4351                         break;
4352
4353                 case LFUN_BUFFER_IMPORT:
4354                         importDocument(to_utf8(cmd.argument()));
4355                         break;
4356
4357                 case LFUN_MASTER_BUFFER_EXPORT:
4358                         if (doc_buffer)
4359                                 doc_buffer = const_cast<Buffer *>(doc_buffer->masterBuffer());
4360                         // fall through
4361                 case LFUN_BUFFER_EXPORT: {
4362                         if (!doc_buffer)
4363                                 break;
4364                         // GCC only sees strfwd.h when building merged
4365                         if (::lyx::operator==(cmd.argument(), "custom")) {
4366                                 // LFUN_MASTER_BUFFER_EXPORT is not enabled for this case,
4367                                 // so the following test should not be needed.
4368                                 // In principle, we could try to switch to such a view...
4369                                 // if (cmd.action() == LFUN_BUFFER_EXPORT)
4370                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
4371                                 break;
4372                         }
4373
4374                         string const dest = cmd.getArg(1);
4375                         FileName target_dir;
4376                         if (!dest.empty() && FileName::isAbsolute(dest))
4377                                 target_dir = FileName(support::onlyPath(dest));
4378                         else
4379                                 target_dir = doc_buffer->fileName().onlyPath();
4380
4381                         string const format = (argument.empty() || argument == "default") ?
4382                                 doc_buffer->params().getDefaultOutputFormat() : argument;
4383
4384                         if ((dest.empty() && doc_buffer->isUnnamed())
4385                             || !target_dir.isDirWritable()) {
4386                                 exportBufferAs(*doc_buffer, from_utf8(format));
4387                                 break;
4388                         }
4389                         /* TODO/Review: Is it a problem to also export the children?
4390                                         See the update_unincluded flag */
4391                         d.asyncBufferProcessing(format,
4392                                                 doc_buffer,
4393                                                 _("Exporting ..."),
4394                                                 &GuiViewPrivate::exportAndDestroy,
4395                                                 &Buffer::doExport,
4396                                                 nullptr, cmd.allowAsync());
4397                         // TODO Inform user about success
4398                         break;
4399                 }
4400
4401                 case LFUN_BUFFER_EXPORT_AS: {
4402                         LASSERT(doc_buffer, break);
4403                         docstring f = cmd.argument();
4404                         if (f.empty())
4405                                 f = from_ascii(doc_buffer->params().getDefaultOutputFormat());
4406                         exportBufferAs(*doc_buffer, f);
4407                         break;
4408                 }
4409
4410                 case LFUN_BUFFER_UPDATE: {
4411                         d.asyncBufferProcessing(argument,
4412                                                 doc_buffer,
4413                                                 _("Exporting ..."),
4414                                                 &GuiViewPrivate::compileAndDestroy,
4415                                                 &Buffer::doExport,
4416                                                 nullptr, cmd.allowAsync(), true);
4417                         break;
4418                 }
4419                 case LFUN_BUFFER_VIEW: {
4420                         d.asyncBufferProcessing(argument,
4421                                                 doc_buffer,
4422                                                 _("Previewing ..."),
4423                                                 &GuiViewPrivate::previewAndDestroy,
4424                                                 nullptr,
4425                                                 &Buffer::preview, cmd.allowAsync());
4426                         break;
4427                 }
4428                 case LFUN_MASTER_BUFFER_UPDATE: {
4429                         d.asyncBufferProcessing(argument,
4430                                                 (doc_buffer ? doc_buffer->masterBuffer() : nullptr),
4431                                                 docstring(),
4432                                                 &GuiViewPrivate::compileAndDestroy,
4433                                                 &Buffer::doExport,
4434                                                 nullptr, cmd.allowAsync(), true);
4435                         break;
4436                 }
4437                 case LFUN_MASTER_BUFFER_VIEW: {
4438                         d.asyncBufferProcessing(argument,
4439                                                 (doc_buffer ? doc_buffer->masterBuffer() : nullptr),
4440                                                 docstring(),
4441                                                 &GuiViewPrivate::previewAndDestroy,
4442                                                 nullptr, &Buffer::preview, cmd.allowAsync());
4443                         break;
4444                 }
4445                 case LFUN_EXPORT_CANCEL: {
4446                         cancelExport();
4447                         break;
4448                 }
4449                 case LFUN_BUFFER_SWITCH: {
4450                         string const file_name = to_utf8(cmd.argument());
4451                         if (!FileName::isAbsolute(file_name)) {
4452                                 dr.setError(true);
4453                                 dr.setMessage(_("Absolute filename expected."));
4454                                 break;
4455                         }
4456
4457                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
4458                         if (!buffer) {
4459                                 dr.setError(true);
4460                                 dr.setMessage(_("Document not loaded"));
4461                                 break;
4462                         }
4463
4464                         // Do we open or switch to the buffer in this view ?
4465                         if (workArea(*buffer)
4466                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
4467                                 setBuffer(buffer);
4468                                 break;
4469                         }
4470
4471                         // Look for the buffer in other views
4472                         QList<int> const ids = guiApp->viewIds();
4473                         int i = 0;
4474                         for (; i != ids.size(); ++i) {
4475                                 GuiView & gv = guiApp->view(ids[i]);
4476                                 if (gv.workArea(*buffer)) {
4477                                         gv.raise();
4478                                         gv.activateWindow();
4479                                         gv.setFocus();
4480                                         gv.setBuffer(buffer);
4481                                         break;
4482                                 }
4483                         }
4484
4485                         // If necessary, open a new window as a last resort
4486                         if (i == ids.size()) {
4487                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
4488                                 lyx::dispatch(cmd);
4489                         }
4490                         break;
4491                 }
4492
4493                 case LFUN_BUFFER_NEXT:
4494                         gotoNextOrPreviousBuffer(NEXT, false);
4495                         break;
4496
4497                 case LFUN_BUFFER_MOVE_NEXT:
4498                         gotoNextOrPreviousBuffer(NEXT, true);
4499                         break;
4500
4501                 case LFUN_BUFFER_PREVIOUS:
4502                         gotoNextOrPreviousBuffer(PREV, false);
4503                         break;
4504
4505                 case LFUN_BUFFER_MOVE_PREVIOUS:
4506                         gotoNextOrPreviousBuffer(PREV, true);
4507                         break;
4508
4509                 case LFUN_BUFFER_CHKTEX:
4510                         LASSERT(doc_buffer, break);
4511                         doc_buffer->runChktex();
4512                         break;
4513
4514                 case LFUN_COMMAND_EXECUTE: {
4515                         command_execute_ = true;
4516                         minibuffer_focus_ = true;
4517                         break;
4518                 }
4519                 case LFUN_DROP_LAYOUTS_CHOICE:
4520                         d.layout_->showPopup();
4521                         break;
4522
4523                 case LFUN_MENU_OPEN:
4524                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
4525                                 menu->exec(QCursor::pos());
4526                         break;
4527
4528                 case LFUN_FILE_INSERT: {
4529                         bool const ignore_lang = cmd.getArg(1) == "ignorelang";
4530                         if (insertLyXFile(from_utf8(cmd.getArg(0)), ignore_lang)) {
4531                                 dr.forceBufferUpdate();
4532                                 dr.screenUpdate(Update::Force);
4533                         }
4534                         break;
4535                 }
4536
4537                 case LFUN_FILE_INSERT_PLAINTEXT:
4538                 case LFUN_FILE_INSERT_PLAINTEXT_PARA: {
4539                         string const fname = to_utf8(cmd.argument());
4540                         if (!fname.empty() && !FileName::isAbsolute(fname)) {
4541                                 dr.setMessage(_("Absolute filename expected."));
4542                                 break;
4543                         }
4544
4545                         FileName filename(fname);
4546                         if (fname.empty()) {
4547                                 FileDialog dlg(qt_("Select file to insert"));
4548
4549                                 FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
4550                                         QStringList(qt_("All Files (*)")));
4551
4552                                 if (result.first == FileDialog::Later || result.second.isEmpty()) {
4553                                         dr.setMessage(_("Canceled."));
4554                                         break;
4555                                 }
4556
4557                                 filename.set(fromqstr(result.second));
4558                         }
4559
4560                         if (bv) {
4561                                 FuncRequest const new_cmd(cmd, filename.absoluteFilePath());
4562                                 bv->dispatch(new_cmd, dr);
4563                         }
4564                         break;
4565                 }
4566
4567                 case LFUN_BUFFER_RELOAD: {
4568                         LASSERT(doc_buffer, break);
4569
4570                         // drop changes?
4571                         bool drop = (cmd.argument() == "dump");
4572
4573                         int ret = 0;
4574                         if (!drop && !doc_buffer->isClean()) {
4575                                 docstring const file =
4576                                         makeDisplayPath(doc_buffer->absFileName(), 20);
4577                                 if (doc_buffer->notifiesExternalModification()) {
4578                                         docstring text = _("The current version will be lost. "
4579                                             "Are you sure you want to load the version on disk "
4580                                             "of the document %1$s?");
4581                                         ret = Alert::prompt(_("Reload saved document?"),
4582                                                             bformat(text, file), 1, 1,
4583                                                             _("&Reload"), _("&Cancel"));
4584                                 } else {
4585                                         docstring text = _("Any changes will be lost. "
4586                                             "Are you sure you want to revert to the saved version "
4587                                             "of the document %1$s?");
4588                                         ret = Alert::prompt(_("Revert to saved document?"),
4589                                                             bformat(text, file), 1, 1,
4590                                                             _("&Revert"), _("&Cancel"));
4591                                 }
4592                         }
4593
4594                         if (ret == 0) {
4595                                 doc_buffer->markClean();
4596                                 reloadBuffer(*doc_buffer);
4597                                 dr.forceBufferUpdate();
4598                         }
4599                         break;
4600                 }
4601
4602                 case LFUN_BUFFER_RESET_EXPORT:
4603                         LASSERT(doc_buffer, break);
4604                         doc_buffer->requireFreshStart(true);
4605                         dr.setMessage(_("Buffer export reset."));
4606                         break;
4607
4608                 case LFUN_BUFFER_WRITE:
4609                         LASSERT(doc_buffer, break);
4610                         saveBuffer(*doc_buffer);
4611                         break;
4612
4613                 case LFUN_BUFFER_WRITE_AS:
4614                         LASSERT(doc_buffer, break);
4615                         renameBuffer(*doc_buffer, cmd.argument());
4616                         break;
4617
4618                 case LFUN_BUFFER_WRITE_AS_TEMPLATE:
4619                         LASSERT(doc_buffer, break);
4620                         renameBuffer(*doc_buffer, cmd.argument(),
4621                                      LV_WRITE_AS_TEMPLATE);
4622                         break;
4623
4624                 case LFUN_BUFFER_WRITE_ALL: {
4625                         Buffer * first = theBufferList().first();
4626                         if (!first)
4627                                 break;
4628                         message(_("Saving all documents..."));
4629                         // We cannot use a for loop as the buffer list cycles.
4630                         Buffer * b = first;
4631                         do {
4632                                 if (!b->isClean()) {
4633                                         saveBuffer(*b);
4634                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
4635                                 }
4636                                 b = theBufferList().next(b);
4637                         } while (b != first);
4638                         dr.setMessage(_("All documents saved."));
4639                         break;
4640                 }
4641
4642                 case LFUN_MASTER_BUFFER_FORALL: {
4643                         if (!doc_buffer)
4644                                 break;
4645
4646                         FuncRequest funcToRun = lyxaction.lookupFunc(cmd.getLongArg(0));
4647                         funcToRun.allowAsync(false);
4648
4649                         for (Buffer const * buf : doc_buffer->allRelatives()) {
4650                                 // Switch to other buffer view and resend cmd
4651                                 lyx::dispatch(FuncRequest(
4652                                         LFUN_BUFFER_SWITCH, buf->absFileName()));
4653                                 lyx::dispatch(funcToRun);
4654                         }
4655                         // switch back
4656                         lyx::dispatch(FuncRequest(
4657                                 LFUN_BUFFER_SWITCH, doc_buffer->absFileName()));
4658                         break;
4659                 }
4660
4661                 case LFUN_BUFFER_EXTERNAL_MODIFICATION_CLEAR:
4662                         LASSERT(doc_buffer, break);
4663                         doc_buffer->clearExternalModification();
4664                         break;
4665
4666                 case LFUN_BUFFER_CLOSE:
4667                         closeBuffer();
4668                         break;
4669
4670                 case LFUN_BUFFER_CLOSE_ALL:
4671                         closeBufferAll();
4672                         break;
4673
4674                 case LFUN_DEVEL_MODE_TOGGLE:
4675                         devel_mode_ = !devel_mode_;
4676                         if (devel_mode_)
4677                                 dr.setMessage(_("Developer mode is now enabled."));
4678                         else
4679                                 dr.setMessage(_("Developer mode is now disabled."));
4680                         break;
4681
4682                 case LFUN_TOOLBAR_SET: {
4683                         string const name = cmd.getArg(0);
4684                         string const state = cmd.getArg(1);
4685                         if (GuiToolbar * t = toolbar(name))
4686                                 t->setState(state);
4687                         break;
4688                 }
4689
4690                 case LFUN_TOOLBAR_TOGGLE: {
4691                         string const name = cmd.getArg(0);
4692                         if (GuiToolbar * t = toolbar(name))
4693                                 t->toggle();
4694                         break;
4695                 }
4696
4697                 case LFUN_TOOLBAR_MOVABLE: {
4698                         string const name = cmd.getArg(0);
4699                         if (name == "*") {
4700                                 // toggle (all) toolbars movablility
4701                                 toolbarsMovable_ = !toolbarsMovable_;
4702                                 for (ToolbarInfo const & ti : guiApp->toolbars()) {
4703                                         GuiToolbar * tb = toolbar(ti.name);
4704                                         if (tb && tb->isMovable() != toolbarsMovable_)
4705                                                 // toggle toolbar movablity if it does not fit lock
4706                                                 // (all) toolbars positions state silent = true, since
4707                                                 // status bar notifications are slow
4708                                                 tb->movable(true);
4709                                 }
4710                                 if (toolbarsMovable_)
4711                                         dr.setMessage(_("Toolbars unlocked."));
4712                                 else
4713                                         dr.setMessage(_("Toolbars locked."));
4714                         } else if (GuiToolbar * tb = toolbar(name))
4715                                 // toggle current toolbar movablity
4716                                 tb->movable();
4717                         // update lock (all) toolbars positions
4718                         updateLockToolbars();
4719                         break;
4720                 }
4721
4722                 case LFUN_ICON_SIZE: {
4723                         QSize size = d.iconSize(cmd.argument());
4724                         setIconSize(size);
4725                         dr.setMessage(bformat(_("Icon size set to %1$dx%2$d."),
4726                                                 size.width(), size.height()));
4727                         break;
4728                 }
4729
4730                 case LFUN_DIALOG_UPDATE: {
4731                         string const name = to_utf8(cmd.argument());
4732                         if (name == "prefs" || name == "document")
4733                                 updateDialog(name, string());
4734                         else if (name == "paragraph")
4735                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
4736                         else if (currentBufferView()) {
4737                                 Inset * inset = currentBufferView()->editedInset(name);
4738                                 // Can only update a dialog connected to an existing inset
4739                                 if (inset) {
4740                                         // FIXME: get rid of this indirection; GuiView ask the inset
4741                                         // if he is kind enough to update itself...
4742                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
4743                                         //FIXME: pass DispatchResult here?
4744                                         inset->dispatch(currentBufferView()->cursor(), fr);
4745                                 }
4746                         }
4747                         break;
4748                 }
4749
4750                 case LFUN_DIALOG_TOGGLE: {
4751                         FuncCode const func_code = isDialogVisible(cmd.getArg(0))
4752                                 ? LFUN_DIALOG_HIDE : LFUN_DIALOG_SHOW;
4753                         dispatch(FuncRequest(func_code, cmd.argument()), dr);
4754                         break;
4755                 }
4756
4757                 case LFUN_DIALOG_DISCONNECT_INSET:
4758                         disconnectDialog(to_utf8(cmd.argument()));
4759                         break;
4760
4761                 case LFUN_DIALOG_HIDE: {
4762                         guiApp->hideDialogs(to_utf8(cmd.argument()), nullptr);
4763                         break;
4764                 }
4765
4766                 case LFUN_DIALOG_SHOW: {
4767                         string const name = cmd.getArg(0);
4768                         string sdata = trim(to_utf8(cmd.argument()).substr(name.size()));
4769
4770                         if (name == "latexlog") {
4771                                 // getStatus checks that
4772                                 LASSERT(doc_buffer, break);
4773                                 Buffer::LogType type;
4774                                 string const logfile = doc_buffer->logName(&type);
4775                                 switch (type) {
4776                                 case Buffer::latexlog:
4777                                         sdata = "latex ";
4778                                         break;
4779                                 case Buffer::buildlog:
4780                                         sdata = "literate ";
4781                                         break;
4782                                 }
4783                                 sdata += Lexer::quoteString(logfile);
4784                                 showDialog("log", sdata);
4785                         } else if (name == "vclog") {
4786                                 // getStatus checks that
4787                                 LASSERT(doc_buffer, break);
4788                                 string const sdata2 = "vc " +
4789                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
4790                                 showDialog("log", sdata2);
4791                         } else if (name == "symbols") {
4792                                 sdata = bv->cursor().getEncoding()->name();
4793                                 if (!sdata.empty())
4794                                         showDialog("symbols", sdata);
4795                         } else if (name == "findreplace") {
4796                                 sdata = to_utf8(bv->cursor().selectionAsString(false));
4797                                 showDialog(name, sdata);
4798                         // bug 5274
4799                         } else if (name == "prefs" && isFullScreen()) {
4800                                 lfunUiToggle("fullscreen");
4801                                 showDialog("prefs", sdata);
4802                         } else
4803                                 showDialog(name, sdata);
4804                         break;
4805                 }
4806
4807                 case LFUN_MESSAGE:
4808                         dr.setMessage(cmd.argument());
4809                         break;
4810
4811                 case LFUN_UI_TOGGLE: {
4812                         string arg = cmd.getArg(0);
4813                         if (!lfunUiToggle(arg)) {
4814                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
4815                                 dr.setMessage(bformat(msg, from_utf8(arg)));
4816                         }
4817                         // Make sure the keyboard focus stays in the work area.
4818                         setFocus();
4819                         break;
4820                 }
4821
4822                 case LFUN_VIEW_SPLIT: {
4823                         LASSERT(doc_buffer, break);
4824                         string const orientation = cmd.getArg(0);
4825                         d.splitter_->setOrientation(orientation == "vertical"
4826                                 ? Qt::Vertical : Qt::Horizontal);
4827                         TabWorkArea * twa = addTabWorkArea();
4828                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
4829                         setCurrentWorkArea(wa);
4830                         break;
4831                 }
4832
4833                 case LFUN_TAB_GROUP_NEXT:
4834                         gotoNextTabWorkArea(NEXT);
4835                         break;
4836
4837                 case LFUN_TAB_GROUP_PREVIOUS:
4838                         gotoNextTabWorkArea(PREV);
4839                         break;
4840
4841                 case LFUN_TAB_GROUP_CLOSE:
4842                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
4843                                 closeTabWorkArea(twa);
4844                                 d.current_work_area_ = nullptr;
4845                                 twa = d.currentTabWorkArea();
4846                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
4847                                 if (twa) {
4848                                         // Make sure the work area is up to date.
4849                                         setCurrentWorkArea(twa->currentWorkArea());
4850                                 } else {
4851                                         setCurrentWorkArea(nullptr);
4852                                 }
4853                         }
4854                         break;
4855
4856                 case LFUN_VIEW_CLOSE:
4857                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
4858                                 closeWorkArea(twa->currentWorkArea());
4859                                 d.current_work_area_ = nullptr;
4860                                 twa = d.currentTabWorkArea();
4861                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
4862                                 if (twa) {
4863                                         // Make sure the work area is up to date.
4864                                         setCurrentWorkArea(twa->currentWorkArea());
4865                                 } else {
4866                                         setCurrentWorkArea(nullptr);
4867                                 }
4868                         }
4869                         break;
4870
4871                 case LFUN_COMPLETION_INLINE:
4872                         if (d.current_work_area_)
4873                                 d.current_work_area_->completer().showInline();
4874                         break;
4875
4876                 case LFUN_COMPLETION_POPUP:
4877                         if (d.current_work_area_)
4878                                 d.current_work_area_->completer().showPopup();
4879                         break;
4880
4881
4882                 case LFUN_COMPLETE:
4883                         if (d.current_work_area_)
4884                                 d.current_work_area_->completer().tab();
4885                         break;
4886
4887                 case LFUN_COMPLETION_CANCEL:
4888                         if (d.current_work_area_) {
4889                                 if (d.current_work_area_->completer().popupVisible())
4890                                         d.current_work_area_->completer().hidePopup();
4891                                 else
4892                                         d.current_work_area_->completer().hideInline();
4893                         }
4894                         break;
4895
4896                 case LFUN_COMPLETION_ACCEPT:
4897                         if (d.current_work_area_)
4898                                 d.current_work_area_->completer().activate();
4899                         break;
4900
4901                 case LFUN_BUFFER_ZOOM_IN:
4902                 case LFUN_BUFFER_ZOOM_OUT:
4903                 case LFUN_BUFFER_ZOOM: {
4904                         zoom_ratio_ = zoomRatio(cmd, zoom_ratio_);
4905
4906                         // Actual zoom value: default zoom + fractional extra value
4907                         int zoom = (int)(lyxrc.defaultZoom * zoom_ratio_);
4908                         zoom = min(max(zoom, zoom_min_), zoom_max_);
4909
4910                         setCurrentZoom(zoom);
4911
4912                         dr.setMessage(bformat(_("Zoom level is now %1$d% (default value: %2$d%)"),
4913                                               lyxrc.currentZoom, lyxrc.defaultZoom));
4914
4915                         guiApp->fontLoader().update();
4916                         // Regenerate instant previews
4917                         if (lyxrc.preview != LyXRC::PREVIEW_OFF
4918                             && doc_buffer && doc_buffer->loader())
4919                                 doc_buffer->loader()->refreshPreviews();
4920                         dr.screenUpdate(Update::ForceAll | Update::FitCursor);
4921                         break;
4922                 }
4923
4924                 case LFUN_VC_REGISTER:
4925                 case LFUN_VC_RENAME:
4926                 case LFUN_VC_COPY:
4927                 case LFUN_VC_CHECK_IN:
4928                 case LFUN_VC_CHECK_OUT:
4929                 case LFUN_VC_REPO_UPDATE:
4930                 case LFUN_VC_LOCKING_TOGGLE:
4931                 case LFUN_VC_REVERT:
4932                 case LFUN_VC_UNDO_LAST:
4933                 case LFUN_VC_COMMAND:
4934                 case LFUN_VC_COMPARE:
4935                         dispatchVC(cmd, dr);
4936                         break;
4937
4938                 case LFUN_SERVER_GOTO_FILE_ROW:
4939                         if(goToFileRow(to_utf8(cmd.argument())))
4940                                 dr.screenUpdate(Update::Force | Update::FitCursor);
4941                         break;
4942
4943                 case LFUN_LYX_ACTIVATE:
4944                         activateWindow();
4945                         break;
4946
4947                 case LFUN_WINDOW_RAISE:
4948                         raise();
4949                         activateWindow();
4950                         showNormal();
4951                         break;
4952
4953                 case LFUN_FORWARD_SEARCH: {
4954                         // it seems safe to assume we have a document buffer, since
4955                         // getStatus wants one.
4956                         LASSERT(doc_buffer, break);
4957                         Buffer const * doc_master = doc_buffer->masterBuffer();
4958                         FileName const path(doc_master->temppath());
4959                         string const texname = doc_master->isChild(doc_buffer)
4960                                 ? DocFileName(changeExtension(
4961                                         doc_buffer->absFileName(),
4962                                                 "tex")).mangledFileName()
4963                                 : doc_buffer->latexName();
4964                         string const fulltexname =
4965                                 support::makeAbsPath(texname, doc_master->temppath()).absFileName();
4966                         string const mastername =
4967                                 removeExtension(doc_master->latexName());
4968                         FileName const dviname(addName(path.absFileName(),
4969                                         addExtension(mastername, "dvi")));
4970                         FileName const pdfname(addName(path.absFileName(),
4971                                         addExtension(mastername, "pdf")));
4972                         bool const have_dvi = dviname.exists();
4973                         bool const have_pdf = pdfname.exists();
4974                         if (!have_dvi && !have_pdf) {
4975                                 dr.setMessage(_("Please, preview the document first."));
4976                                 break;
4977                         }
4978                         bool const goto_dvi = have_dvi && !lyxrc.forward_search_dvi.empty();
4979                         bool const goto_pdf = have_pdf && !lyxrc.forward_search_pdf.empty();
4980                         string outname = dviname.onlyFileName();
4981                         string command = lyxrc.forward_search_dvi;
4982                         if ((!goto_dvi || goto_pdf) &&
4983                             pdfname.lastModified() > dviname.lastModified()) {
4984                                 outname = pdfname.onlyFileName();
4985                                 command = lyxrc.forward_search_pdf;
4986                         }
4987
4988                         DocIterator cur = bv->cursor();
4989                         int row = doc_buffer->texrow().rowFromDocIterator(cur).first;
4990                         LYXERR(Debug::ACTION, "Forward search: row:" << row
4991                                    << " cur:" << cur);
4992                         if (row == -1 || command.empty()) {
4993                                 dr.setMessage(_("Couldn't proceed."));
4994                                 break;
4995                         }
4996                         string texrow = convert<string>(row);
4997
4998                         command = subst(command, "$$n", texrow);
4999                         command = subst(command, "$$f", fulltexname);
5000                         command = subst(command, "$$t", texname);
5001                         command = subst(command, "$$o", outname);
5002
5003                         volatile PathChanger p(path);
5004                         Systemcall one;
5005                         one.startscript(Systemcall::DontWait, command);
5006                         break;
5007                 }
5008
5009                 case LFUN_SPELLING_CONTINUOUSLY:
5010                         lyxrc.spellcheck_continuously = !lyxrc.spellcheck_continuously;
5011                         dr.screenUpdate(Update::Force);
5012                         break;
5013
5014                 case LFUN_CITATION_OPEN: {
5015                         string pdfv, psv;
5016                         if (theFormats().getFormat("pdf"))
5017                                 pdfv = theFormats().getFormat("pdf")->viewer();
5018                         if (theFormats().getFormat("ps"))
5019                                 psv = theFormats().getFormat("ps")->viewer();
5020                         frontend::showTarget(argument, pdfv, psv);
5021                         break;
5022                 }
5023
5024                 default:
5025                         // The LFUN must be for one of BufferView, Buffer or Cursor;
5026                         // let's try that:
5027                         dispatchToBufferView(cmd, dr);
5028                         break;
5029         }
5030
5031         // Need to update bv because many LFUNs here might have destroyed it
5032         bv = currentBufferView();
5033
5034         // Clear non-empty selections
5035         // (e.g. from a "char-forward-select" followed by "char-backward-select")
5036         if (bv) {
5037                 Cursor & cur = bv->cursor();
5038                 if ((cur.selection() && cur.selBegin() == cur.selEnd())) {
5039                         cur.clearSelection();
5040                 }
5041         }
5042 }
5043
5044
5045 bool GuiView::lfunUiToggle(string const & ui_component)
5046 {
5047         if (ui_component == "scrollbar") {
5048                 // hide() is of no help
5049                 if (d.current_work_area_->verticalScrollBarPolicy() ==
5050                         Qt::ScrollBarAlwaysOff)
5051
5052                         d.current_work_area_->setVerticalScrollBarPolicy(
5053                                 Qt::ScrollBarAsNeeded);
5054                 else
5055                         d.current_work_area_->setVerticalScrollBarPolicy(
5056                                 Qt::ScrollBarAlwaysOff);
5057         } else if (ui_component == "statusbar") {
5058                 statusBar()->setVisible(!statusBar()->isVisible());
5059         } else if (ui_component == "menubar") {
5060                 menuBar()->setVisible(!menuBar()->isVisible());
5061         } else if (ui_component == "zoomlevel") {
5062                 zoom_value_->setVisible(!zoom_value_->isVisible());
5063         } else if (ui_component == "zoomslider") {
5064                 zoom_slider_->setVisible(!zoom_slider_->isVisible());
5065                 zoom_in_->setVisible(zoom_slider_->isVisible());
5066                 zoom_out_->setVisible(zoom_slider_->isVisible());
5067         } else if (ui_component == "statistics-w") {
5068                 word_count_enabled_ = !word_count_enabled_;
5069                 if (statsEnabled())
5070                         showStats();
5071         } else if (ui_component == "statistics-cb") {
5072                 char_count_enabled_ = !char_count_enabled_;
5073                 if (statsEnabled())
5074                         showStats();
5075         } else if (ui_component == "statistics-c") {
5076                 char_nb_count_enabled_ = !char_nb_count_enabled_;
5077                 if (statsEnabled())
5078                         showStats();
5079         } else if (ui_component == "frame") {
5080                 int const l = contentsMargins().left();
5081
5082                 //are the frames in default state?
5083                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
5084                 if (l == 0) {
5085 #if QT_VERSION >  0x050903
5086                         setAttribute(Qt::WA_ContentsMarginsRespectsSafeArea, false);
5087 #endif
5088                         setContentsMargins(-2, -2, -2, -2);
5089                 } else {
5090 #if QT_VERSION >  0x050903
5091                         setAttribute(Qt::WA_ContentsMarginsRespectsSafeArea, true);
5092 #endif
5093                         setContentsMargins(0, 0, 0, 0);
5094                 }
5095         } else
5096         if (ui_component == "fullscreen") {
5097                 toggleFullScreen();
5098         } else
5099                 return false;
5100         stat_counts_->setVisible(statsEnabled());
5101         return true;
5102 }
5103
5104
5105 void GuiView::cancelExport()
5106 {
5107         Systemcall::killscript();
5108         // stop busy signal immediately so that in the subsequent
5109         // "Export canceled" prompt the status bar icons are accurate.
5110         Q_EMIT scriptKilled();
5111 }
5112
5113
5114 void GuiView::toggleFullScreen()
5115 {
5116         setWindowState(windowState() ^ Qt::WindowFullScreen);
5117 }
5118
5119
5120 Buffer const * GuiView::updateInset(Inset const * inset)
5121 {
5122         if (!inset)
5123                 return nullptr;
5124
5125         Buffer const * inset_buffer = &(inset->buffer());
5126
5127         for (int i = 0; i != d.splitter_->count(); ++i) {
5128                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
5129                 if (!wa)
5130                         continue;
5131                 Buffer const * buffer = &(wa->bufferView().buffer());
5132                 if (inset_buffer == buffer)
5133                         wa->scheduleRedraw(true);
5134         }
5135         return inset_buffer;
5136 }
5137
5138
5139 void GuiView::restartCaret()
5140 {
5141         /* When we move around, or type, it's nice to be able to see
5142          * the caret immediately after the keypress.
5143          */
5144         if (d.current_work_area_)
5145                 d.current_work_area_->startBlinkingCaret();
5146
5147         // Take this occasion to update the other GUI elements.
5148         updateDialogs();
5149         updateStatusBar();
5150 }
5151
5152
5153 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
5154 {
5155         if (d.current_work_area_)
5156                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
5157 }
5158
5159 namespace {
5160
5161 // This list should be kept in sync with the list of insets in
5162 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
5163 // dialog should have the same name as the inset.
5164 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
5165 // docs in LyXAction.cpp.
5166
5167 char const * const dialognames[] = {
5168
5169 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
5170 "citation", "compare", "comparehistory", "counter", "document", "errorlist", "ert",
5171 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
5172 "href", "include", "index", "index_print", "info", "listings", "label", "line",
5173 "log", "lyxfiles", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
5174 "nomencl_print", "note", "paragraph", "phantom", "prefs", "ref",
5175 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
5176 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
5177
5178 char const * const * const end_dialognames =
5179         dialognames + (sizeof(dialognames) / sizeof(char *));
5180
5181 class cmpCStr {
5182 public:
5183         cmpCStr(char const * name) : name_(name) {}
5184         bool operator()(char const * other) {
5185                 return strcmp(other, name_) == 0;
5186         }
5187 private:
5188         char const * name_;
5189 };
5190
5191
5192 bool isValidName(string const & name)
5193 {
5194         return find_if(dialognames, end_dialognames,
5195                 cmpCStr(name.c_str())) != end_dialognames;
5196 }
5197
5198 } // namespace
5199
5200
5201 void GuiView::resetDialogs()
5202 {
5203         // Make sure that no LFUN uses any GuiView.
5204         guiApp->setCurrentView(nullptr);
5205         saveLayout();
5206         saveUISettings();
5207         menuBar()->clear();
5208         constructToolbars();
5209         guiApp->menus().fillMenuBar(menuBar(), this, false);
5210         d.layout_->updateContents(true);
5211         // Now update controls with current buffer.
5212         guiApp->setCurrentView(this);
5213         restoreLayout();
5214         restartCaret();
5215 }
5216
5217
5218 void GuiView::flatGroupBoxes(const QObject * widget, bool flag)
5219 {
5220         for (QObject * child: widget->children()) {
5221                 if (child->inherits("QGroupBox")) {
5222                         QGroupBox * box = (QGroupBox*) child;
5223                         box->setFlat(flag);
5224                 } else {
5225                         flatGroupBoxes(child, flag);
5226                 }
5227         }
5228 }
5229
5230
5231 Dialog * GuiView::find(string const & name, bool hide_it) const
5232 {
5233         if (!isValidName(name))
5234                 return nullptr;
5235
5236         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
5237
5238         if (it != d.dialogs_.end()) {
5239                 if (hide_it)
5240                         it->second->hideView();
5241                 return it->second.get();
5242         }
5243         return nullptr;
5244 }
5245
5246
5247 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
5248 {
5249         Dialog * dialog = find(name, hide_it);
5250         if (dialog != nullptr)
5251                 return dialog;
5252
5253         dialog = build(name);
5254         d.dialogs_[name].reset(dialog);
5255         // Force a uniform style for group boxes
5256         // On Mac non-flat works better, on Linux flat is standard
5257         flatGroupBoxes(dialog->asQWidget(), guiApp->platformName() != "cocoa");
5258         if (lyxrc.allow_geometry_session)
5259                 dialog->restoreSession();
5260         if (hide_it)
5261                 dialog->hideView();
5262         return dialog;
5263 }
5264
5265
5266 void GuiView::showDialog(string const & name, string const & sdata,
5267         Inset * inset)
5268 {
5269         triggerShowDialog(toqstr(name), toqstr(sdata), inset);
5270 }
5271
5272
5273 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
5274         Inset * inset)
5275 {
5276         if (d.in_show_)
5277                 return;
5278
5279         const string name = fromqstr(qname);
5280         const string sdata = fromqstr(qdata);
5281
5282         d.in_show_ = true;
5283         try {
5284                 Dialog * dialog = findOrBuild(name, false);
5285                 if (dialog) {
5286                         bool const visible = dialog->isVisibleView();
5287                         dialog->showData(sdata);
5288                         if (currentBufferView())
5289                                 currentBufferView()->editInset(name, inset);
5290                         // We only set the focus to the new dialog if it was not yet
5291                         // visible in order not to change the existing previous behaviour
5292                         if (visible) {
5293                                 // activateWindow is needed for floating dockviews
5294                                 dialog->asQWidget()->raise();
5295                                 dialog->asQWidget()->activateWindow();
5296                                 if (dialog->wantInitialFocus())
5297                                         dialog->asQWidget()->setFocus();
5298                         }
5299                 }
5300         }
5301         catch (ExceptionMessage const &) {
5302                 d.in_show_ = false;
5303                 throw;
5304         }
5305         d.in_show_ = false;
5306 }
5307
5308
5309 bool GuiView::isDialogVisible(string const & name) const
5310 {
5311         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
5312         if (it == d.dialogs_.end())
5313                 return false;
5314         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
5315 }
5316
5317
5318 void GuiView::hideDialog(string const & name, Inset * inset)
5319 {
5320         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
5321         if (it == d.dialogs_.end())
5322                 return;
5323
5324         if (inset) {
5325                 if (!currentBufferView())
5326                         return;
5327                 if (inset != currentBufferView()->editedInset(name))
5328                         return;
5329         }
5330
5331         Dialog * const dialog = it->second.get();
5332         if (dialog->isVisibleView())
5333                 dialog->hideView();
5334         if (currentBufferView())
5335                 currentBufferView()->editInset(name, nullptr);
5336 }
5337
5338
5339 void GuiView::disconnectDialog(string const & name)
5340 {
5341         if (!isValidName(name))
5342                 return;
5343         if (currentBufferView())
5344                 currentBufferView()->editInset(name, nullptr);
5345 }
5346
5347
5348 void GuiView::hideAll() const
5349 {
5350         for(auto const & dlg_p : d.dialogs_)
5351                 dlg_p.second->hideView();
5352 }
5353
5354
5355 void GuiView::updateDialogs()
5356 {
5357         for(auto const & dlg_p : d.dialogs_) {
5358                 Dialog * dialog = dlg_p.second.get();
5359                 if (dialog) {
5360                         if (dialog->needBufferOpen() && !documentBufferView())
5361                                 hideDialog(fromqstr(dialog->name()), nullptr);
5362                         else if (dialog->isVisibleView())
5363                                 dialog->checkStatus();
5364                 }
5365         }
5366         updateToolbars();
5367         updateLayoutList();
5368 }
5369
5370
5371 Dialog * GuiView::build(string const & name)
5372 {
5373         return createDialog(*this, name);
5374 }
5375
5376
5377 SEMenu::SEMenu(QWidget * parent)
5378 {
5379         QAction * action = addAction(qt_("Disable Shell Escape"));
5380         connect(action, SIGNAL(triggered()),
5381                 parent, SLOT(disableShellEscape()));
5382 }
5383
5384
5385 void PressableSvgWidget::mousePressEvent(QMouseEvent * event)
5386 {
5387         if (event->button() == Qt::LeftButton) {
5388         Q_EMIT pressed();
5389     }
5390 }
5391
5392 } // namespace frontend
5393 } // namespace lyx
5394
5395 #include "moc_GuiView.cpp"