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)
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                 // the user specifically chose this name. Believe him.
2853                 Buffer * const b = newFile(filename, string(), true);
2854                 if (b)
2855                         setBuffer(b);
2856                 return;
2857         }
2858
2859         docstring const disp_fn = makeDisplayPath(filename);
2860         message(bformat(_("Opening document %1$s..."), disp_fn));
2861
2862         docstring str2;
2863         Buffer * buf = loadDocument(fullname);
2864         if (buf) {
2865                 str2 = bformat(_("Document %1$s opened."), disp_fn);
2866                 if (buf->lyxvc().inUse())
2867                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
2868                                 " " + _("Version control detected.");
2869         } else {
2870                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
2871         }
2872         message(str2);
2873 }
2874
2875 // FIXME: clean that
2876 static bool import(GuiView * lv, FileName const & filename,
2877         string const & format, ErrorList & errorList)
2878 {
2879         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
2880
2881         string loader_format;
2882         vector<string> loaders = theConverters().loaders();
2883         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
2884                 for (string const & loader : loaders) {
2885                         if (!theConverters().isReachable(format, loader))
2886                                 continue;
2887
2888                         string const tofile =
2889                                 support::changeExtension(filename.absFileName(),
2890                                 theFormats().extension(loader));
2891                         if (theConverters().convert(nullptr, filename, FileName(tofile),
2892                                 filename, format, loader, errorList) != Converters::SUCCESS)
2893                                 return false;
2894                         loader_format = loader;
2895                         break;
2896                 }
2897                 if (loader_format.empty()) {
2898                         frontend::Alert::error(_("Couldn't import file"),
2899                                          bformat(_("No information for importing the format %1$s."),
2900                                          translateIfPossible(theFormats().prettyName(format))));
2901                         return false;
2902                 }
2903         } else
2904                 loader_format = format;
2905
2906         if (loader_format == "lyx") {
2907                 Buffer * buf = lv->loadDocument(lyxfile);
2908                 if (!buf)
2909                         return false;
2910         } else {
2911                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
2912                 if (!b)
2913                         return false;
2914                 lv->setBuffer(b);
2915                 bool as_paragraphs = loader_format == "textparagraph";
2916                 string filename2 = (loader_format == format) ? filename.absFileName()
2917                         : support::changeExtension(filename.absFileName(),
2918                                           theFormats().extension(loader_format));
2919                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
2920                         as_paragraphs);
2921                 guiApp->setCurrentView(lv);
2922                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
2923         }
2924
2925         return true;
2926 }
2927
2928
2929 void GuiView::importDocument(string const & argument)
2930 {
2931         string format;
2932         string filename = split(argument, format, ' ');
2933
2934         LYXERR(Debug::INFO, format << " file: " << filename);
2935
2936         // need user interaction
2937         if (filename.empty()) {
2938                 string initpath = lyxrc.document_path;
2939                 if (documentBufferView()) {
2940                         string const trypath = documentBufferView()->buffer().filePath();
2941                         // If directory is writeable, use this as default.
2942                         if (FileName(trypath).isDirWritable())
2943                                 initpath = trypath;
2944                 }
2945
2946                 docstring const text = bformat(_("Select %1$s file to import"),
2947                         translateIfPossible(theFormats().prettyName(format)));
2948
2949                 FileDialog dlg(toqstr(text));
2950                 dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
2951                 dlg.setButton2(qt_("&Examples"), toqstr(lyxrc.example_path));
2952
2953                 docstring filter = translateIfPossible(theFormats().prettyName(format));
2954                 filter += " (*.{";
2955                 // FIXME UNICODE
2956                 filter += from_utf8(theFormats().extensions(format));
2957                 filter += "})";
2958
2959                 FileDialog::Result result =
2960                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2961
2962                 if (result.first == FileDialog::Later)
2963                         return;
2964
2965                 filename = fromqstr(result.second);
2966
2967                 // check selected filename
2968                 if (filename.empty())
2969                         message(_("Canceled."));
2970         }
2971
2972         if (filename.empty())
2973                 return;
2974
2975         // get absolute path of file
2976         FileName const fullname(support::makeAbsPath(filename));
2977
2978         // Can happen if the user entered a path into the dialog
2979         // (see bug #7437)
2980         if (fullname.onlyFileName().empty()) {
2981                 docstring msg = bformat(_("The file name '%1$s' is invalid!\n"
2982                                           "Aborting import."),
2983                                         from_utf8(fullname.absFileName()));
2984                 frontend::Alert::error(_("File name error"), msg);
2985                 message(_("Canceled."));
2986                 return;
2987         }
2988
2989
2990         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2991
2992         // Check if the document already is open
2993         Buffer * buf = theBufferList().getBuffer(lyxfile);
2994         if (buf) {
2995                 setBuffer(buf);
2996                 if (!closeBuffer()) {
2997                         message(_("Canceled."));
2998                         return;
2999                 }
3000         }
3001
3002         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
3003
3004         // if the file exists already, and we didn't do
3005         // -i lyx thefile.lyx, warn
3006         if (lyxfile.exists() && fullname != lyxfile) {
3007
3008                 docstring text = bformat(_("The document %1$s already exists.\n\n"
3009                         "Do you want to overwrite that document?"), displaypath);
3010                 int const ret = Alert::prompt(_("Overwrite document?"),
3011                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
3012
3013                 if (ret == 1) {
3014                         message(_("Canceled."));
3015                         return;
3016                 }
3017         }
3018
3019         message(bformat(_("Importing %1$s..."), displaypath));
3020         ErrorList errorList;
3021         if (import(this, fullname, format, errorList))
3022                 message(_("imported."));
3023         else
3024                 message(_("file not imported!"));
3025
3026         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
3027 }
3028
3029
3030 void GuiView::newDocument(string const & filename, string templatefile,
3031                           bool from_template)
3032 {
3033         FileName initpath(lyxrc.document_path);
3034         if (documentBufferView()) {
3035                 FileName const trypath(documentBufferView()->buffer().filePath());
3036                 // If directory is writeable, use this as default.
3037                 if (trypath.isDirWritable())
3038                         initpath = trypath;
3039         }
3040
3041         if (from_template) {
3042                 if (templatefile.empty())
3043                         templatefile =  selectTemplateFile().absFileName();
3044                 if (templatefile.empty())
3045                         return;
3046         }
3047
3048         Buffer * b;
3049         if (filename.empty())
3050                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
3051         else
3052                 b = newFile(filename, templatefile, true);
3053
3054         if (b)
3055                 setBuffer(b);
3056
3057         // If no new document could be created, it is unsure
3058         // whether there is a valid BufferView.
3059         if (currentBufferView())
3060                 // Ensure the cursor is correctly positioned on screen.
3061                 currentBufferView()->showCursor();
3062 }
3063
3064
3065 bool GuiView::insertLyXFile(docstring const & fname, bool ignorelang)
3066 {
3067         BufferView * bv = documentBufferView();
3068         if (!bv)
3069                 return false;
3070
3071         // FIXME UNICODE
3072         FileName filename(to_utf8(fname));
3073         if (filename.empty()) {
3074                 // Launch a file browser
3075                 // FIXME UNICODE
3076                 string initpath = lyxrc.document_path;
3077                 string const trypath = bv->buffer().filePath();
3078                 // If directory is writeable, use this as default.
3079                 if (FileName(trypath).isDirWritable())
3080                         initpath = trypath;
3081
3082                 // FIXME UNICODE
3083                 FileDialog dlg(qt_("Select LyX document to insert"));
3084                 dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
3085                 dlg.setButton2(qt_("&Examples"), toqstr(lyxrc.example_path));
3086
3087                 FileDialog::Result result = dlg.open(toqstr(initpath),
3088                                          QStringList(qt_("LyX Documents (*.lyx)")));
3089
3090                 if (result.first == FileDialog::Later)
3091                         return false;
3092
3093                 // FIXME UNICODE
3094                 filename.set(fromqstr(result.second));
3095
3096                 // check selected filename
3097                 if (filename.empty()) {
3098                         // emit message signal.
3099                         message(_("Canceled."));
3100                         return false;
3101                 }
3102         }
3103
3104         bv->insertLyXFile(filename, ignorelang);
3105         bv->buffer().errors("Parse");
3106         return true;
3107 }
3108
3109
3110 string const GuiView::getTemplatesPath(Buffer & b)
3111 {
3112         // We start off with the user's templates path
3113         string result = addPath(package().user_support().absFileName(), "templates");
3114         // Check for the document language
3115         string const langcode = b.params().language->code();
3116         string const shortcode = langcode.substr(0, 2);
3117         if (!langcode.empty() && shortcode != "en") {
3118                 string subpath = addPath(result, shortcode);
3119                 string subpath_long = addPath(result, langcode);
3120                 // If we have a subdirectory for the language already,
3121                 // navigate there
3122                 FileName sp = FileName(subpath);
3123                 if (sp.isDirectory())
3124                         result = subpath;
3125                 else if (FileName(subpath_long).isDirectory())
3126                         result = subpath_long;
3127                 else {
3128                         // Ask whether we should create such a subdirectory
3129                         docstring const text =
3130                                 bformat(_("It is suggested to save the template in a subdirectory\n"
3131                                           "appropriate to the document language (%1$s).\n"
3132                                           "This subdirectory does not exists yet.\n"
3133                                           "Do you want to create it?"),
3134                                         _(b.params().language->display()));
3135                         if (Alert::prompt(_("Create Language Directory?"),
3136                                           text, 0, 1, _("&Yes, Create"), _("&No, Save Template in Parent Directory")) == 0) {
3137                                 // If the user agreed, we try to create it and report if this failed.
3138                                 if (!sp.createDirectory(0777))
3139                                         Alert::error(_("Subdirectory creation failed!"),
3140                                                      _("Could not create subdirectory.\n"
3141                                                        "The template will be saved in the parent directory."));
3142                                 else
3143                                         result = subpath;
3144                         }
3145                 }
3146         }
3147         // Do we have a layout category?
3148         string const cat = b.params().baseClass() ?
3149                                 b.params().baseClass()->category()
3150                               : string();
3151         if (!cat.empty()) {
3152                 string subpath = addPath(result, cat);
3153                 // If we have a subdirectory for the category already,
3154                 // navigate there
3155                 FileName sp = FileName(subpath);
3156                 if (sp.isDirectory())
3157                         result = subpath;
3158                 else {
3159                         // Ask whether we should create such a subdirectory
3160                         docstring const text =
3161                                 bformat(_("It is suggested to save the template in a subdirectory\n"
3162                                           "appropriate to the layout category (%1$s).\n"
3163                                           "This subdirectory does not exists yet.\n"
3164                                           "Do you want to create it?"),
3165                                         _(cat));
3166                         if (Alert::prompt(_("Create Category Directory?"),
3167                                           text, 0, 1, _("&Yes, Create"), _("&No, Save Template in Parent Directory")) == 0) {
3168                                 // If the user agreed, we try to create it and report if this failed.
3169                                 if (!sp.createDirectory(0777))
3170                                         Alert::error(_("Subdirectory creation failed!"),
3171                                                      _("Could not create subdirectory.\n"
3172                                                        "The template will be saved in the parent directory."));
3173                                 else
3174                                         result = subpath;
3175                         }
3176                 }
3177         }
3178         return result;
3179 }
3180
3181
3182 bool GuiView::renameBuffer(Buffer & b, docstring const & newname, RenameKind kind)
3183 {
3184         FileName fname = b.fileName();
3185         FileName const oldname = fname;
3186         bool const as_template = (kind == LV_WRITE_AS_TEMPLATE);
3187
3188         if (!newname.empty()) {
3189                 // FIXME UNICODE
3190                 if (as_template)
3191                         fname = support::makeAbsPath(to_utf8(newname), getTemplatesPath(b));
3192                 else
3193                         fname = support::makeAbsPath(to_utf8(newname),
3194                                                      oldname.onlyPath().absFileName());
3195         } else {
3196                 // Switch to this Buffer.
3197                 setBuffer(&b);
3198
3199                 // No argument? Ask user through dialog.
3200                 // FIXME UNICODE
3201                 QString const title = as_template ? qt_("Choose a filename to save template as")
3202                                                   : qt_("Choose a filename to save document as");
3203                 FileDialog dlg(title);
3204                 dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
3205                 dlg.setButton2(qt_("&Templates"), toqstr(lyxrc.template_path));
3206
3207                 fname.ensureExtension(".lyx");
3208
3209                 string const path = as_template ?
3210                                         getTemplatesPath(b)
3211                                       : fname.onlyPath().absFileName();
3212                 FileDialog::Result result =
3213                         dlg.save(toqstr(path),
3214                                    QStringList(qt_("LyX Documents (*.lyx)")),
3215                                          toqstr(fname.onlyFileName()));
3216
3217                 if (result.first == FileDialog::Later)
3218                         return false;
3219
3220                 fname.set(fromqstr(result.second));
3221
3222                 if (fname.empty())
3223                         return false;
3224
3225                 fname.ensureExtension(".lyx");
3226         }
3227
3228         // fname is now the new Buffer location.
3229
3230         // if there is already a Buffer open with this name, we do not want
3231         // to have another one. (the second test makes sure we're not just
3232         // trying to overwrite ourselves, which is fine.)
3233         if (theBufferList().exists(fname) && fname != oldname
3234                   && theBufferList().getBuffer(fname) != &b) {
3235                 docstring const text =
3236                         bformat(_("The file\n%1$s\nis already open in your current session.\n"
3237                             "Please close it before attempting to overwrite it.\n"
3238                             "Do you want to choose a new filename?"),
3239                                 from_utf8(fname.absFileName()));
3240                 int const ret = Alert::prompt(_("Chosen File Already Open"),
3241                         text, 0, 1, _("&Rename"), _("&Cancel"));
3242                 switch (ret) {
3243                 case 0: return renameBuffer(b, docstring(), kind);
3244                 case 1: return false;
3245                 }
3246                 //return false;
3247         }
3248
3249         bool const existsLocal = fname.exists();
3250         bool const existsInVC = LyXVC::fileInVC(fname);
3251         if (existsLocal || existsInVC) {
3252                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
3253                 if (kind != LV_WRITE_AS && existsInVC) {
3254                         // renaming to a name that is already in VC
3255                         // would not work
3256                         docstring text = bformat(_("The document %1$s "
3257                                         "is already registered.\n\n"
3258                                         "Do you want to choose a new name?"),
3259                                 file);
3260                         docstring const title = (kind == LV_VC_RENAME) ?
3261                                 _("Rename document?") : _("Copy document?");
3262                         docstring const button = (kind == LV_VC_RENAME) ?
3263                                 _("&Rename") : _("&Copy");
3264                         int const ret = Alert::prompt(title, text, 0, 1,
3265                                 button, _("&Cancel"));
3266                         switch (ret) {
3267                         case 0: return renameBuffer(b, docstring(), kind);
3268                         case 1: return false;
3269                         }
3270                 }
3271
3272                 if (existsLocal) {
3273                         docstring text = bformat(_("The document %1$s "
3274                                         "already exists.\n\n"
3275                                         "Do you want to overwrite that document?"),
3276                                 file);
3277                         int const ret = Alert::prompt(_("Overwrite document?"),
3278                                         text, 0, 2, _("&Overwrite"),
3279                                         _("&Rename"), _("&Cancel"));
3280                         switch (ret) {
3281                         case 0: break;
3282                         case 1: return renameBuffer(b, docstring(), kind);
3283                         case 2: return false;
3284                         }
3285                 }
3286         }
3287
3288         switch (kind) {
3289         case LV_VC_RENAME: {
3290                 string msg = b.lyxvc().rename(fname);
3291                 if (msg.empty())
3292                         return false;
3293                 message(from_utf8(msg));
3294                 break;
3295         }
3296         case LV_VC_COPY: {
3297                 string msg = b.lyxvc().copy(fname);
3298                 if (msg.empty())
3299                         return false;
3300                 message(from_utf8(msg));
3301                 break;
3302         }
3303         case LV_WRITE_AS:
3304         case LV_WRITE_AS_TEMPLATE:
3305                 break;
3306         }
3307         // LyXVC created the file already in case of LV_VC_RENAME or
3308         // LV_VC_COPY, but call saveBuffer() nevertheless to get
3309         // relative paths of included stuff right if we moved e.g. from
3310         // /a/b.lyx to /a/c/b.lyx.
3311
3312         bool const saved = saveBuffer(b, fname);
3313         if (saved)
3314                 b.reload();
3315         return saved;
3316 }
3317
3318
3319 bool GuiView::exportBufferAs(Buffer & b, docstring const & iformat)
3320 {
3321         FileName fname = b.fileName();
3322
3323         FileDialog dlg(qt_("Choose a filename to export the document as"));
3324         dlg.setButton1(qt_("D&ocuments"), toqstr(lyxrc.document_path));
3325
3326         QStringList types;
3327         QString const anyformat = qt_("Guess from extension (*.*)");
3328         types << anyformat;
3329
3330         vector<Format const *> export_formats;
3331         for (Format const & f : theFormats())
3332                 if (f.documentFormat())
3333                         export_formats.push_back(&f);
3334         sort(export_formats.begin(), export_formats.end(), Format::formatSorter);
3335         map<QString, string> fmap;
3336         QString filter;
3337         string ext;
3338         for (Format const * f : export_formats) {
3339                 docstring const loc_prettyname = translateIfPossible(f->prettyname());
3340                 QString const loc_filter = toqstr(bformat(from_ascii("%1$s (*.%2$s)"),
3341                                                      loc_prettyname,
3342                                                      from_ascii(f->extension())));
3343                 types << loc_filter;
3344                 fmap[loc_filter] = f->name();
3345                 if (from_ascii(f->name()) == iformat) {
3346                         filter = loc_filter;
3347                         ext = f->extension();
3348                 }
3349         }
3350         string ofname = fname.onlyFileName();
3351         if (!ext.empty())
3352                 ofname = support::changeExtension(ofname, ext);
3353         FileDialog::Result result =
3354                 dlg.save(toqstr(fname.onlyPath().absFileName()),
3355                          types,
3356                          toqstr(ofname),
3357                          &filter);
3358         if (result.first != FileDialog::Chosen)
3359                 return false;
3360
3361         string fmt_name;
3362         fname.set(fromqstr(result.second));
3363         if (filter == anyformat)
3364                 fmt_name = theFormats().getFormatFromExtension(fname.extension());
3365         else
3366                 fmt_name = fmap[filter];
3367         LYXERR(Debug::FILES, "filter=" << fromqstr(filter)
3368                << ", fmt_name=" << fmt_name << ", fname=" << fname.absFileName());
3369
3370         if (fmt_name.empty() || fname.empty())
3371                 return false;
3372
3373         fname.ensureExtension(theFormats().extension(fmt_name));
3374
3375         // fname is now the new Buffer location.
3376         if (fname.exists()) {
3377                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
3378                 docstring text = bformat(_("The document %1$s already "
3379                                            "exists.\n\nDo you want to "
3380                                            "overwrite that document?"),
3381                                          file);
3382                 int const ret = Alert::prompt(_("Overwrite document?"),
3383                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
3384                 switch (ret) {
3385                 case 0: break;
3386                 case 1: return exportBufferAs(b, from_ascii(fmt_name));
3387                 case 2: return false;
3388                 }
3389         }
3390
3391         FuncRequest cmd(LFUN_BUFFER_EXPORT, fmt_name + " " + fname.absFileName());
3392         DispatchResult dr;
3393         dispatch(cmd, dr);
3394         return dr.dispatched();
3395 }
3396
3397
3398 bool GuiView::saveBuffer(Buffer & b)
3399 {
3400         return saveBuffer(b, FileName());
3401 }
3402
3403
3404 bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
3405 {
3406         if (workArea(b) && workArea(b)->inDialogMode())
3407                 return true;
3408
3409         if (fn.empty() && b.isUnnamed())
3410                 return renameBuffer(b, docstring());
3411
3412         bool const success = (fn.empty() ? b.save() : b.saveAs(fn));
3413         if (success) {
3414                 theSession().lastFiles().add(b.fileName());
3415                 theSession().writeFile();
3416                 return true;
3417         }
3418
3419         // Switch to this Buffer.
3420         setBuffer(&b);
3421
3422         // FIXME: we don't tell the user *WHY* the save failed !!
3423         docstring const file = makeDisplayPath(b.absFileName(), 30);
3424         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
3425                                    "Do you want to rename the document and "
3426                                    "try again?"), file);
3427         int const ret = Alert::prompt(_("Rename and save?"),
3428                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
3429         switch (ret) {
3430         case 0:
3431                 if (!renameBuffer(b, docstring()))
3432                         return false;
3433                 break;
3434         case 1:
3435                 break;
3436         case 2:
3437                 return false;
3438         }
3439
3440         return saveBuffer(b, fn);
3441 }
3442
3443
3444 bool GuiView::hideWorkArea(GuiWorkArea * wa)
3445 {
3446         return closeWorkArea(wa, false);
3447 }
3448
3449
3450 // We only want to close the buffer if it is not visible in other workareas
3451 // of the same view, nor in other views, and if this is not a child
3452 bool GuiView::closeWorkArea(GuiWorkArea * wa)
3453 {
3454         Buffer & buf = wa->bufferView().buffer();
3455
3456         bool last_wa = d.countWorkAreasOf(buf) == 1
3457                 && !inOtherView(buf) && !buf.parent();
3458
3459         bool close_buffer = last_wa;
3460
3461         if (last_wa) {
3462                 if (lyxrc.close_buffer_with_last_view == "yes")
3463                         ; // Nothing to do
3464                 else if (lyxrc.close_buffer_with_last_view == "no")
3465                         close_buffer = false;
3466                 else {
3467                         docstring file;
3468                         if (buf.isUnnamed())
3469                                 file = from_utf8(buf.fileName().onlyFileName());
3470                         else
3471                                 file = buf.fileName().displayName(30);
3472                         docstring const text = bformat(
3473                                 _("Last view on document %1$s is being closed.\n"
3474                                   "Would you like to close or hide the document?\n"
3475                                   "\n"
3476                                   "Hidden documents can be displayed back through\n"
3477                                   "the menu: View->Hidden->...\n"
3478                                   "\n"
3479                                   "To remove this question, set your preference in:\n"
3480                                   "  Tools->Preferences->Look&Feel->UserInterface\n"
3481                                 ), file);
3482                         int ret = Alert::prompt(_("Close or hide document?"),
3483                                 text, 0, 2, _("&Close"), _("&Hide"), _("&Cancel"));
3484                         if (ret == 2)
3485                                 return false;
3486                         close_buffer = (ret == 0);
3487                 }
3488         }
3489
3490         return closeWorkArea(wa, close_buffer);
3491 }
3492
3493
3494 bool GuiView::closeBuffer()
3495 {
3496         GuiWorkArea * wa = currentMainWorkArea();
3497         // coverity complained about this
3498         // it seems unnecessary, but perhaps is worth the check
3499         LASSERT(wa, return false);
3500
3501         setCurrentWorkArea(wa);
3502         Buffer & buf = wa->bufferView().buffer();
3503         return closeWorkArea(wa, !buf.parent());
3504 }
3505
3506
3507 void GuiView::writeSession() const {
3508         GuiWorkArea const * active_wa = currentMainWorkArea();
3509         for (int i = 0; i < d.splitter_->count(); ++i) {
3510                 TabWorkArea * twa = d.tabWorkArea(i);
3511                 for (int j = 0; j < twa->count(); ++j) {
3512                         GuiWorkArea * wa = twa->workArea(j);
3513                         Buffer & buf = wa->bufferView().buffer();
3514                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
3515                 }
3516         }
3517 }
3518
3519
3520 bool GuiView::closeBufferAll()
3521 {
3522
3523         for (auto & buf : theBufferList()) {
3524                 if (!saveBufferIfNeeded(*buf, false)) {
3525                         // Closing has been cancelled, so abort.
3526                         return false;
3527                 }
3528         }
3529
3530         // Close the workareas in all other views
3531         QList<int> const ids = guiApp->viewIds();
3532         for (int i = 0; i != ids.size(); ++i) {
3533                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
3534                         return false;
3535         }
3536
3537         // Close our own workareas
3538         if (!closeWorkAreaAll())
3539                 return false;
3540
3541         return true;
3542 }
3543
3544
3545 bool GuiView::closeWorkAreaAll()
3546 {
3547         setCurrentWorkArea(currentMainWorkArea());
3548
3549         // We might be in a situation that there is still a tabWorkArea, but
3550         // there are no tabs anymore. This can happen when we get here after a
3551         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
3552         // many TabWorkArea's have no documents anymore.
3553         int empty_twa = 0;
3554
3555         // We have to call count() each time, because it can happen that
3556         // more than one splitter will disappear in one iteration (bug 5998).
3557         while (d.splitter_->count() > empty_twa) {
3558                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
3559
3560                 if (twa->count() == 0)
3561                         ++empty_twa;
3562                 else {
3563                         setCurrentWorkArea(twa->currentWorkArea());
3564                         if (!closeTabWorkArea(twa))
3565                                 return false;
3566                 }
3567         }
3568         return true;
3569 }
3570
3571
3572 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
3573 {
3574         if (!wa)
3575                 return false;
3576
3577         Buffer & buf = wa->bufferView().buffer();
3578
3579         if (GuiViewPrivate::busyBuffers.contains(&buf)) {
3580                 Alert::warning(_("Close document"),
3581                         _("Document could not be closed because it is being processed by LyX."));
3582                 return false;
3583         }
3584
3585         if (close_buffer)
3586                 return closeBuffer(buf);
3587         else {
3588                 if (!inMultiTabs(wa))
3589                         if (!saveBufferIfNeeded(buf, true))
3590                                 return false;
3591                 removeWorkArea(wa);
3592                 return true;
3593         }
3594 }
3595
3596
3597 bool GuiView::closeBuffer(Buffer & buf)
3598 {
3599         bool success = true;
3600         for (Buffer * child_buf : buf.getChildren()) {
3601                 if (theBufferList().isOthersChild(&buf, child_buf)) {
3602                         child_buf->setParent(nullptr);
3603                         continue;
3604                 }
3605
3606                 // FIXME: should we look in other tabworkareas?
3607                 // ANSWER: I don't think so. I've tested, and if the child is
3608                 // open in some other window, it closes without a problem.
3609                 GuiWorkArea * child_wa = workArea(*child_buf);
3610                 if (child_wa) {
3611                         if (closing_)
3612                                 // If we are in a close_event all children will be closed in some time,
3613                                 // so no need to do it here. This will ensure that the children end up
3614                                 // in the session file in the correct order. If we close the master
3615                                 // buffer, we can close or release the child buffers here too.
3616                                 continue;
3617                         success = closeWorkArea(child_wa, true);
3618                         if (!success)
3619                                 break;
3620                 } else {
3621                         // In this case the child buffer is open but hidden.
3622                         // Even in this case, children can be dirty (e.g.,
3623                         // after a label change in the master, see #11405).
3624                         // Therefore, check this
3625                         if (closing_ && (child_buf->isClean() || child_buf->paragraphs().empty())) {
3626                                 // If we are in a close_event all children will be closed in some time,
3627                                 // so no need to do it here. This will ensure that the children end up
3628                                 // in the session file in the correct order. If we close the master
3629                                 // buffer, we can close or release the child buffers here too.
3630                                 continue;
3631                         }
3632                         // Save dirty buffers also if closing_!
3633                         if (saveBufferIfNeeded(*child_buf, false)) {
3634                                 child_buf->removeAutosaveFile();
3635                                 theBufferList().release(child_buf);
3636                         } else {
3637                                 // Saving of dirty children has been cancelled.
3638                                 // Cancel the whole process.
3639                                 success = false;
3640                                 break;
3641                         }
3642                 }
3643         }
3644         if (success) {
3645                 // goto bookmark to update bookmark pit.
3646                 // FIXME: we should update only the bookmarks related to this buffer!
3647                 // FIXME: this is done also in LFUN_WINDOW_CLOSE!
3648                 LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
3649                 for (unsigned int i = 1; i < theSession().bookmarks().size(); ++i)
3650                         guiApp->gotoBookmark(i, false, false);
3651
3652                 if (saveBufferIfNeeded(buf, false)) {
3653                         buf.removeAutosaveFile();
3654                         theBufferList().release(&buf);
3655                         return true;
3656                 }
3657         }
3658         // open all children again to avoid a crash because of dangling
3659         // pointers (bug 6603)
3660         buf.updateBuffer();
3661         return false;
3662 }
3663
3664
3665 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
3666 {
3667         while (twa == d.currentTabWorkArea()) {
3668                 twa->setCurrentIndex(twa->count() - 1);
3669
3670                 GuiWorkArea * wa = twa->currentWorkArea();
3671                 Buffer & b = wa->bufferView().buffer();
3672
3673                 // We only want to close the buffer if the same buffer is not visible
3674                 // in another view, and if this is not a child and if we are closing
3675                 // a view (not a tabgroup).
3676                 bool const close_buffer =
3677                         !inOtherView(b) && !b.parent() && closing_;
3678
3679                 if (!closeWorkArea(wa, close_buffer))
3680                         return false;
3681         }
3682         return true;
3683 }
3684
3685
3686 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
3687 {
3688         if (buf.isClean() || buf.paragraphs().empty())
3689                 return true;
3690
3691         // Switch to this Buffer.
3692         setBuffer(&buf);
3693
3694         docstring file;
3695         bool exists;
3696         // FIXME: Unicode?
3697         if (buf.isUnnamed()) {
3698                 file = from_utf8(buf.fileName().onlyFileName());
3699                 exists = false;
3700         } else {
3701                 FileName filename = buf.fileName();
3702                 filename.refresh();
3703                 file = filename.displayName(30);
3704                 exists = filename.exists();
3705         }
3706
3707         // Bring this window to top before asking questions.
3708         raise();
3709         activateWindow();
3710
3711         int ret;
3712         if (hiding && buf.isUnnamed()) {
3713                 docstring const text = bformat(_("The document %1$s has not been "
3714                                                  "saved yet.\n\nDo you want to save "
3715                                                  "the document?"), file);
3716                 ret = Alert::prompt(_("Save new document?"),
3717                         text, 0, 1, _("&Save"), _("&Cancel"));
3718                 if (ret == 1)
3719                         ++ret;
3720         } else {
3721                 docstring const text = exists ?
3722                         bformat(_("The document %1$s has unsaved changes."
3723                                   "\n\nDo you want to save the document or "
3724                                   "discard the changes?"), file) :
3725                         bformat(_("The document %1$s has not been saved yet."
3726                                   "\n\nDo you want to save the document or "
3727                                   "discard it entirely?"), file);
3728                 docstring const title = exists ?
3729                         _("Save changed document?") : _("Save document?");
3730                 ret = Alert::prompt(title, text, 0, 2,
3731                                     _("&Save"), _("&Discard"), _("&Cancel"));
3732         }
3733
3734         switch (ret) {
3735         case 0:
3736                 if (!saveBuffer(buf))
3737                         return false;
3738                 break;
3739         case 1:
3740                 // If we crash after this we could have no autosave file
3741                 // but I guess this is really improbable (Jug).
3742                 // Sometimes improbable things happen:
3743                 // - see bug http://www.lyx.org/trac/ticket/6587 (ps)
3744                 // buf.removeAutosaveFile();
3745                 if (hiding)
3746                         // revert all changes
3747                         reloadBuffer(buf);
3748                 buf.markClean();
3749                 break;
3750         case 2:
3751                 return false;
3752         }
3753         return true;
3754 }
3755
3756
3757 bool GuiView::inMultiTabs(GuiWorkArea * wa)
3758 {
3759         Buffer & buf = wa->bufferView().buffer();
3760
3761         for (int i = 0; i != d.splitter_->count(); ++i) {
3762                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
3763                 if (wa_ && wa_ != wa)
3764                         return true;
3765         }
3766         return inOtherView(buf);
3767 }
3768
3769
3770 bool GuiView::inOtherView(Buffer & buf)
3771 {
3772         QList<int> const ids = guiApp->viewIds();
3773
3774         for (int i = 0; i != ids.size(); ++i) {
3775                 if (id_ == ids[i])
3776                         continue;
3777
3778                 if (guiApp->view(ids[i]).workArea(buf))
3779                         return true;
3780         }
3781         return false;
3782 }
3783
3784
3785 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move)
3786 {
3787         if (!documentBufferView())
3788                 return;
3789
3790         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3791                 Buffer * const curbuf = &documentBufferView()->buffer();
3792                 int nwa = twa->count();
3793                 for (int i = 0; i < nwa; ++i) {
3794                         if (&workArea(i)->bufferView().buffer() == curbuf) {
3795                                 int next_index;
3796                                 if (np == NEXT)
3797                                         next_index = (i == nwa - 1 ? 0 : i + 1);
3798                                 else
3799                                         next_index = (i == 0 ? nwa - 1 : i - 1);
3800                                 if (move)
3801                                         twa->moveTab(i, next_index);
3802                                 else
3803                                         setBuffer(&workArea(next_index)->bufferView().buffer());
3804                                 break;
3805                         }
3806                 }
3807         }
3808 }
3809
3810
3811 void GuiView::gotoNextTabWorkArea(NextOrPrevious np)
3812 {
3813         int count = d.splitter_->count();
3814         for (int i = 0; i < count; ++i) {
3815                 if (d.tabWorkArea(i) == d.currentTabWorkArea()) {
3816                         int new_index;
3817                         if (np == NEXT)
3818                                 new_index = (i == count - 1 ? 0 : i + 1);
3819                         else
3820                                 new_index = (i == 0 ? count - 1 : i - 1);
3821                         setCurrentWorkArea(d.tabWorkArea(new_index)->currentWorkArea());
3822                         break;
3823                 }
3824         }
3825 }
3826
3827
3828 /// make sure the document is saved
3829 static bool ensureBufferClean(Buffer * buffer)
3830 {
3831         LASSERT(buffer, return false);
3832         if (buffer->isClean() && !buffer->isUnnamed())
3833                 return true;
3834
3835         docstring const file = buffer->fileName().displayName(30);
3836         docstring title;
3837         docstring text;
3838         if (!buffer->isUnnamed()) {
3839                 text = bformat(_("The document %1$s has unsaved "
3840                                                  "changes.\n\nDo you want to save "
3841                                                  "the document?"), file);
3842                 title = _("Save changed document?");
3843
3844         } else {
3845                 text = bformat(_("The document %1$s has not been "
3846                                                  "saved yet.\n\nDo you want to save "
3847                                                  "the document?"), file);
3848                 title = _("Save new document?");
3849         }
3850         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
3851
3852         if (ret == 0)
3853                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
3854
3855         return buffer->isClean() && !buffer->isUnnamed();
3856 }
3857
3858
3859 bool GuiView::reloadBuffer(Buffer & buf)
3860 {
3861         currentBufferView()->cursor().reset();
3862         Buffer::ReadStatus status = buf.reload();
3863         return status == Buffer::ReadSuccess;
3864 }
3865
3866
3867 void GuiView::checkExternallyModifiedBuffers()
3868 {
3869         for (Buffer * buf : theBufferList()) {
3870                 if (buf->fileName().exists() && buf->isChecksumModified()) {
3871                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
3872                                         " Reload now? Any local changes will be lost."),
3873                                         from_utf8(buf->absFileName()));
3874                         int const ret = Alert::prompt(_("Reload externally changed document?"),
3875                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
3876                         if (!ret)
3877                                 reloadBuffer(*buf);
3878                 }
3879         }
3880 }
3881
3882
3883 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
3884 {
3885         Buffer * buffer = documentBufferView()
3886                 ? &(documentBufferView()->buffer()) : nullptr;
3887
3888         switch (cmd.action()) {
3889         case LFUN_VC_REGISTER:
3890                 if (!buffer || !ensureBufferClean(buffer))
3891                         break;
3892                 if (!buffer->lyxvc().inUse()) {
3893                         if (buffer->lyxvc().registrer()) {
3894                                 reloadBuffer(*buffer);
3895                                 dr.clearMessageUpdate();
3896                         }
3897                 }
3898                 break;
3899
3900         case LFUN_VC_RENAME:
3901         case LFUN_VC_COPY: {
3902                 if (!buffer || !ensureBufferClean(buffer))
3903                         break;
3904                 if (buffer->lyxvc().inUse() && !buffer->hasReadonlyFlag()) {
3905                         if (buffer->lyxvc().isCheckInWithConfirmation()) {
3906                                 // Some changes are not yet committed.
3907                                 // We test here and not in getStatus(), since
3908                                 // this test is expensive.
3909                                 string log;
3910                                 LyXVC::CommandResult ret =
3911                                         buffer->lyxvc().checkIn(log);
3912                                 dr.setMessage(log);
3913                                 if (ret == LyXVC::ErrorCommand ||
3914                                     ret == LyXVC::VCSuccess)
3915                                         reloadBuffer(*buffer);
3916                                 if (buffer->lyxvc().isCheckInWithConfirmation()) {
3917                                         frontend::Alert::error(
3918                                                 _("Revision control error."),
3919                                                 _("Document could not be checked in."));
3920                                         break;
3921                                 }
3922                         }
3923                         RenameKind const kind = (cmd.action() == LFUN_VC_RENAME) ?
3924                                 LV_VC_RENAME : LV_VC_COPY;
3925                         renameBuffer(*buffer, cmd.argument(), kind);
3926                 }
3927                 break;
3928         }
3929
3930         case LFUN_VC_CHECK_IN:
3931                 if (!buffer || !ensureBufferClean(buffer))
3932                         break;
3933                 if (buffer->lyxvc().inUse() && !buffer->hasReadonlyFlag()) {
3934                         string log;
3935                         LyXVC::CommandResult ret = buffer->lyxvc().checkIn(log);
3936                         dr.setMessage(log);
3937                         // Only skip reloading if the checkin was cancelled or
3938                         // an error occurred before the real checkin VCS command
3939                         // was executed, since the VCS might have changed the
3940                         // file even if it could not checkin successfully.
3941                         if (ret == LyXVC::ErrorCommand || ret == LyXVC::VCSuccess)
3942                                 reloadBuffer(*buffer);
3943                 }
3944                 break;
3945
3946         case LFUN_VC_CHECK_OUT:
3947                 if (!buffer || !ensureBufferClean(buffer))
3948                         break;
3949                 if (buffer->lyxvc().inUse()) {
3950                         dr.setMessage(buffer->lyxvc().checkOut());
3951                         reloadBuffer(*buffer);
3952                 }
3953                 break;
3954
3955         case LFUN_VC_LOCKING_TOGGLE:
3956                 if (!buffer || !ensureBufferClean(buffer) || buffer->hasReadonlyFlag())
3957                         break;
3958                 if (buffer->lyxvc().inUse()) {
3959                         string res = buffer->lyxvc().lockingToggle();
3960                         if (res.empty()) {
3961                                 frontend::Alert::error(_("Revision control error."),
3962                                 _("Error when setting the locking property."));
3963                         } else {
3964                                 dr.setMessage(res);
3965                                 reloadBuffer(*buffer);
3966                         }
3967                 }
3968                 break;
3969
3970         case LFUN_VC_REVERT:
3971                 if (!buffer)
3972                         break;
3973                 if (buffer->lyxvc().revert()) {
3974                         reloadBuffer(*buffer);
3975                         dr.clearMessageUpdate();
3976                 }
3977                 break;
3978
3979         case LFUN_VC_UNDO_LAST:
3980                 if (!buffer)
3981                         break;
3982                 buffer->lyxvc().undoLast();
3983                 reloadBuffer(*buffer);
3984                 dr.clearMessageUpdate();
3985                 break;
3986
3987         case LFUN_VC_REPO_UPDATE:
3988                 if (!buffer)
3989                         break;
3990                 if (ensureBufferClean(buffer)) {
3991                         dr.setMessage(buffer->lyxvc().repoUpdate());
3992                         checkExternallyModifiedBuffers();
3993                 }
3994                 break;
3995
3996         case LFUN_VC_COMMAND: {
3997                 string flag = cmd.getArg(0);
3998                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
3999                         break;
4000                 docstring message;
4001                 if (contains(flag, 'M')) {
4002                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
4003                                 break;
4004                 }
4005                 string path = cmd.getArg(1);
4006                 if (contains(path, "$$p") && buffer)
4007                         path = subst(path, "$$p", buffer->filePath());
4008                 LYXERR(Debug::LYXVC, "Directory: " << path);
4009                 FileName pp(path);
4010                 if (!pp.isReadableDirectory()) {
4011                         lyxerr << _("Directory is not accessible.") << endl;
4012                         break;
4013                 }
4014                 support::PathChanger p(pp);
4015
4016                 string command = cmd.getArg(2);
4017                 if (command.empty())
4018                         break;
4019                 if (buffer) {
4020                         command = subst(command, "$$i", buffer->absFileName());
4021                         command = subst(command, "$$p", buffer->filePath());
4022                 }
4023                 command = subst(command, "$$m", to_utf8(message));
4024                 LYXERR(Debug::LYXVC, "Command: " << command);
4025                 Systemcall one;
4026                 one.startscript(Systemcall::Wait, command);
4027
4028                 if (!buffer)
4029                         break;
4030                 if (contains(flag, 'I'))
4031                         buffer->markDirty();
4032                 if (contains(flag, 'R'))
4033                         reloadBuffer(*buffer);
4034
4035                 break;
4036                 }
4037
4038         case LFUN_VC_COMPARE: {
4039                 if (cmd.argument().empty()) {
4040                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
4041                         break;
4042                 }
4043                 if (!buffer)
4044                         break;
4045
4046                 string rev1 = cmd.getArg(0);
4047                 string f1, f2;
4048
4049                 // f1
4050                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
4051                         break;
4052
4053                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
4054                         f2 = buffer->absFileName();
4055                 } else {
4056                         string rev2 = cmd.getArg(1);
4057                         if (rev2.empty())
4058                                 break;
4059                         // f2
4060                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
4061                                 break;
4062                 }
4063
4064                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
4065                                         f1 << "\n"  << f2 << "\n" );
4066                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
4067                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
4068                 break;
4069         }
4070
4071         default:
4072                 break;
4073         }
4074 }
4075
4076
4077 void GuiView::openChildDocument(string const & fname)
4078 {
4079         LASSERT(documentBufferView(), return);
4080         Buffer & buffer = documentBufferView()->buffer();
4081         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
4082         documentBufferView()->saveBookmark(false);
4083         Buffer * child = nullptr;
4084         if (theBufferList().exists(filename)) {
4085                 child = theBufferList().getBuffer(filename);
4086                 setBuffer(child);
4087         } else {
4088                 message(bformat(_("Opening child document %1$s..."),
4089                         makeDisplayPath(filename.absFileName())));
4090                 child = loadDocument(filename, false);
4091         }
4092         // Set the parent name of the child document.
4093         // This makes insertion of citations and references in the child work,
4094         // when the target is in the parent or another child document.
4095         if (child)
4096                 child->setParent(&buffer);
4097 }
4098
4099
4100 bool GuiView::goToFileRow(string const & argument)
4101 {
4102         string file_name;
4103         int row = -1;
4104         size_t i = argument.find_last_of(' ');
4105         if (i != string::npos) {
4106                 file_name = os::internal_path(FileName(trim(argument.substr(0, i))).realPath());
4107                 istringstream is(argument.substr(i + 1));
4108                 is >> row;
4109                 if (is.fail())
4110                         i = string::npos;
4111         }
4112         if (i == string::npos) {
4113                 LYXERR0("Wrong argument: " << argument);
4114                 return false;
4115         }
4116         Buffer * buf = nullptr;
4117         string const realtmp = package().temp_dir().realPath();
4118         // We have to use os::path_prefix_is() here, instead of
4119         // simply prefixIs(), because the file name comes from
4120         // an external application and may need case adjustment.
4121         if (os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
4122                 buf = theBufferList().getBufferFromTmp(file_name, true);
4123                 LYXERR(Debug::FILES, "goToFileRow: buffer lookup for " << file_name
4124                            << (buf ? " success" : " failed"));
4125         } else {
4126                 // Must replace extension of the file to be .lyx
4127                 // and get full path
4128                 FileName const s = fileSearch(string(),
4129                                                   support::changeExtension(file_name, ".lyx"), "lyx");
4130                 // Either change buffer or load the file
4131                 if (theBufferList().exists(s))
4132                         buf = theBufferList().getBuffer(s);
4133                 else if (s.exists()) {
4134                         buf = loadDocument(s);
4135                         if (!buf)
4136                                 return false;
4137                 } else {
4138                         message(bformat(
4139                                         _("File does not exist: %1$s"),
4140                                         makeDisplayPath(file_name)));
4141                         return false;
4142                 }
4143         }
4144         if (!buf) {
4145                 message(bformat(
4146                         _("No buffer for file: %1$s."),
4147                         makeDisplayPath(file_name))
4148                 );
4149                 return false;
4150         }
4151         setBuffer(buf);
4152         bool success = documentBufferView()->setCursorFromRow(row);
4153         if (!success) {
4154                 LYXERR(Debug::OUTFILE,
4155                        "setCursorFromRow: invalid position for row " << row);
4156                 frontend::Alert::error(_("Inverse Search Failed"),
4157                                        _("Invalid position requested by inverse search.\n"
4158                                          "You may need to update the viewed document."));
4159         }
4160         return success;
4161 }
4162
4163
4164 template<class T>
4165 Buffer::ExportStatus GuiView::GuiViewPrivate::runAndDestroy(const T& func,
4166                 Buffer const * orig, Buffer * clone, string const & format)
4167 {
4168         Buffer::ExportStatus const status = func(format);
4169
4170         // the cloning operation will have produced a clone of the entire set of
4171         // documents, starting from the master. so we must delete those.
4172         Buffer * mbuf = const_cast<Buffer *>(clone->masterBuffer());
4173         delete mbuf;
4174         busyBuffers.remove(orig);
4175         return status;
4176 }
4177
4178
4179 Buffer::ExportStatus GuiView::GuiViewPrivate::compileAndDestroy(
4180                 Buffer const * orig, Buffer * clone, string const & format)
4181 {
4182         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const =
4183                         &Buffer::doExport;
4184         return runAndDestroy(lyx::bind(mem_func, clone, _1, true), orig, clone, format);
4185 }
4186
4187
4188 Buffer::ExportStatus GuiView::GuiViewPrivate::exportAndDestroy(
4189                 Buffer const * orig, Buffer * clone, string const & format)
4190 {
4191         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const =
4192                         &Buffer::doExport;
4193         return runAndDestroy(lyx::bind(mem_func, clone, _1, false), orig, clone, format);
4194 }
4195
4196
4197 Buffer::ExportStatus GuiView::GuiViewPrivate::previewAndDestroy(
4198                 Buffer const * orig, Buffer * clone, string const & format)
4199 {
4200         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &) const =
4201                         &Buffer::preview;
4202         return runAndDestroy(lyx::bind(mem_func, clone, _1), orig, clone, format);
4203 }
4204
4205
4206 bool GuiView::GuiViewPrivate::asyncBufferProcessing(string const & argument,
4207                            Buffer const * used_buffer,
4208                            docstring const & msg,
4209                            Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
4210                            Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
4211                            Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const,
4212                            bool allow_async, bool use_tmpdir)
4213 {
4214         if (!used_buffer)
4215                 return false;
4216
4217         string format = argument;
4218         if (format.empty())
4219                 format = used_buffer->params().getDefaultOutputFormat();
4220         processing_format = format;
4221         if (!msg.empty()) {
4222                 progress_->clearMessages();
4223                 gv_->message(msg);
4224         }
4225 #if EXPORT_in_THREAD
4226         if (allow_async) {
4227                 GuiViewPrivate::busyBuffers.insert(used_buffer);
4228                 Buffer * cloned_buffer = used_buffer->cloneWithChildren();
4229                 if (!cloned_buffer) {
4230                         Alert::error(_("Export Error"),
4231                                      _("Error cloning the Buffer."));
4232                         return false;
4233                 }
4234                 QFuture<Buffer::ExportStatus> f = QtConcurrent::run(
4235                                         asyncFunc,
4236                                         used_buffer,
4237                                         cloned_buffer,
4238                                         format);
4239                 setPreviewFuture(f);
4240                 last_export_format = used_buffer->params().bufferFormat();
4241                 (void) syncFunc;
4242                 (void) previewFunc;
4243                 // We are asynchronous, so we don't know here anything about the success
4244                 return true;
4245         } else {
4246                 Buffer::ExportStatus status;
4247                 if (syncFunc) {
4248                         status = (used_buffer->*syncFunc)(format, use_tmpdir);
4249                 } else if (previewFunc) {
4250                         status = (used_buffer->*previewFunc)(format);
4251                 } else
4252                         return false;
4253                 handleExportStatus(gv_, status, format);
4254                 (void) asyncFunc;
4255                 return (status == Buffer::ExportSuccess
4256                                 || status == Buffer::PreviewSuccess);
4257         }
4258 #else
4259         (void) allow_async;
4260         Buffer::ExportStatus status;
4261         if (syncFunc) {
4262                 status = (used_buffer->*syncFunc)(format, true);
4263         } else if (previewFunc) {
4264                 status = (used_buffer->*previewFunc)(format);
4265         } else
4266                 return false;
4267         handleExportStatus(gv_, status, format);
4268         (void) asyncFunc;
4269         return (status == Buffer::ExportSuccess
4270                         || status == Buffer::PreviewSuccess);
4271 #endif
4272 }
4273
4274 void GuiView::dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr)
4275 {
4276         BufferView * bv = currentBufferView();
4277         LASSERT(bv, return);
4278
4279         // Let the current BufferView dispatch its own actions.
4280         bv->dispatch(cmd, dr);
4281         if (dr.dispatched()) {
4282                 if (cmd.action() == LFUN_REDO || cmd.action() == LFUN_UNDO)
4283                         updateDialog("document", "");
4284                 return;
4285         }
4286
4287         // Try with the document BufferView dispatch if any.
4288         BufferView * doc_bv = documentBufferView();
4289         if (doc_bv && doc_bv != bv) {
4290                 doc_bv->dispatch(cmd, dr);
4291                 if (dr.dispatched()) {
4292                         if (cmd.action() == LFUN_REDO || cmd.action() == LFUN_UNDO)
4293                                 updateDialog("document", "");
4294                         return;
4295                 }
4296         }
4297
4298         // Then let the current Cursor dispatch its own actions.
4299         bv->cursor().dispatch(cmd);
4300
4301         // update completion. We do it here and not in
4302         // processKeySym to avoid another redraw just for a
4303         // changed inline completion
4304         if (cmd.origin() == FuncRequest::KEYBOARD) {
4305                 if (cmd.action() == LFUN_SELF_INSERT
4306                         || (cmd.action() == LFUN_ERT_INSERT && bv->cursor().inMathed()))
4307                         updateCompletion(bv->cursor(), true, true);
4308                 else if (cmd.action() == LFUN_CHAR_DELETE_BACKWARD)
4309                         updateCompletion(bv->cursor(), false, true);
4310                 else
4311                         updateCompletion(bv->cursor(), false, false);
4312         }
4313
4314         dr = bv->cursor().result();
4315 }
4316
4317
4318 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
4319 {
4320         BufferView * bv = currentBufferView();
4321         // By default we won't need any update.
4322         dr.screenUpdate(Update::None);
4323         // assume cmd will be dispatched
4324         dr.dispatched(true);
4325
4326         Buffer * doc_buffer = documentBufferView()
4327                 ? &(documentBufferView()->buffer()) : nullptr;
4328
4329         if (cmd.origin() == FuncRequest::TOC) {
4330                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
4331                 toc->doDispatch(bv->cursor(), cmd, dr);
4332                 return;
4333         }
4334
4335         string const argument = to_utf8(cmd.argument());
4336
4337         switch(cmd.action()) {
4338                 case LFUN_BUFFER_CHILD_OPEN:
4339                         openChildDocument(to_utf8(cmd.argument()));
4340                         break;
4341
4342                 case LFUN_BUFFER_IMPORT:
4343                         importDocument(to_utf8(cmd.argument()));
4344                         break;
4345
4346                 case LFUN_MASTER_BUFFER_EXPORT:
4347                         if (doc_buffer)
4348                                 doc_buffer = const_cast<Buffer *>(doc_buffer->masterBuffer());
4349                         // fall through
4350                 case LFUN_BUFFER_EXPORT: {
4351                         if (!doc_buffer)
4352                                 break;
4353                         // GCC only sees strfwd.h when building merged
4354                         if (::lyx::operator==(cmd.argument(), "custom")) {
4355                                 // LFUN_MASTER_BUFFER_EXPORT is not enabled for this case,
4356                                 // so the following test should not be needed.
4357                                 // In principle, we could try to switch to such a view...
4358                                 // if (cmd.action() == LFUN_BUFFER_EXPORT)
4359                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
4360                                 break;
4361                         }
4362
4363                         string const dest = cmd.getArg(1);
4364                         FileName target_dir;
4365                         if (!dest.empty() && FileName::isAbsolute(dest))
4366                                 target_dir = FileName(support::onlyPath(dest));
4367                         else
4368                                 target_dir = doc_buffer->fileName().onlyPath();
4369
4370                         string const format = (argument.empty() || argument == "default") ?
4371                                 doc_buffer->params().getDefaultOutputFormat() : argument;
4372
4373                         if ((dest.empty() && doc_buffer->isUnnamed())
4374                             || !target_dir.isDirWritable()) {
4375                                 exportBufferAs(*doc_buffer, from_utf8(format));
4376                                 break;
4377                         }
4378                         /* TODO/Review: Is it a problem to also export the children?
4379                                         See the update_unincluded flag */
4380                         d.asyncBufferProcessing(format,
4381                                                 doc_buffer,
4382                                                 _("Exporting ..."),
4383                                                 &GuiViewPrivate::exportAndDestroy,
4384                                                 &Buffer::doExport,
4385                                                 nullptr, cmd.allowAsync());
4386                         // TODO Inform user about success
4387                         break;
4388                 }
4389
4390                 case LFUN_BUFFER_EXPORT_AS: {
4391                         LASSERT(doc_buffer, break);
4392                         docstring f = cmd.argument();
4393                         if (f.empty())
4394                                 f = from_ascii(doc_buffer->params().getDefaultOutputFormat());
4395                         exportBufferAs(*doc_buffer, f);
4396                         break;
4397                 }
4398
4399                 case LFUN_BUFFER_UPDATE: {
4400                         d.asyncBufferProcessing(argument,
4401                                                 doc_buffer,
4402                                                 _("Exporting ..."),
4403                                                 &GuiViewPrivate::compileAndDestroy,
4404                                                 &Buffer::doExport,
4405                                                 nullptr, cmd.allowAsync(), true);
4406                         break;
4407                 }
4408                 case LFUN_BUFFER_VIEW: {
4409                         d.asyncBufferProcessing(argument,
4410                                                 doc_buffer,
4411                                                 _("Previewing ..."),
4412                                                 &GuiViewPrivate::previewAndDestroy,
4413                                                 nullptr,
4414                                                 &Buffer::preview, cmd.allowAsync());
4415                         break;
4416                 }
4417                 case LFUN_MASTER_BUFFER_UPDATE: {
4418                         d.asyncBufferProcessing(argument,
4419                                                 (doc_buffer ? doc_buffer->masterBuffer() : nullptr),
4420                                                 docstring(),
4421                                                 &GuiViewPrivate::compileAndDestroy,
4422                                                 &Buffer::doExport,
4423                                                 nullptr, cmd.allowAsync(), true);
4424                         break;
4425                 }
4426                 case LFUN_MASTER_BUFFER_VIEW: {
4427                         d.asyncBufferProcessing(argument,
4428                                                 (doc_buffer ? doc_buffer->masterBuffer() : nullptr),
4429                                                 docstring(),
4430                                                 &GuiViewPrivate::previewAndDestroy,
4431                                                 nullptr, &Buffer::preview, cmd.allowAsync());
4432                         break;
4433                 }
4434                 case LFUN_EXPORT_CANCEL: {
4435                         cancelExport();
4436                         break;
4437                 }
4438                 case LFUN_BUFFER_SWITCH: {
4439                         string const file_name = to_utf8(cmd.argument());
4440                         if (!FileName::isAbsolute(file_name)) {
4441                                 dr.setError(true);
4442                                 dr.setMessage(_("Absolute filename expected."));
4443                                 break;
4444                         }
4445
4446                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
4447                         if (!buffer) {
4448                                 dr.setError(true);
4449                                 dr.setMessage(_("Document not loaded"));
4450                                 break;
4451                         }
4452
4453                         // Do we open or switch to the buffer in this view ?
4454                         if (workArea(*buffer)
4455                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
4456                                 setBuffer(buffer);
4457                                 break;
4458                         }
4459
4460                         // Look for the buffer in other views
4461                         QList<int> const ids = guiApp->viewIds();
4462                         int i = 0;
4463                         for (; i != ids.size(); ++i) {
4464                                 GuiView & gv = guiApp->view(ids[i]);
4465                                 if (gv.workArea(*buffer)) {
4466                                         gv.raise();
4467                                         gv.activateWindow();
4468                                         gv.setFocus();
4469                                         gv.setBuffer(buffer);
4470                                         break;
4471                                 }
4472                         }
4473
4474                         // If necessary, open a new window as a last resort
4475                         if (i == ids.size()) {
4476                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
4477                                 lyx::dispatch(cmd);
4478                         }
4479                         break;
4480                 }
4481
4482                 case LFUN_BUFFER_NEXT:
4483                         gotoNextOrPreviousBuffer(NEXT, false);
4484                         break;
4485
4486                 case LFUN_BUFFER_MOVE_NEXT:
4487                         gotoNextOrPreviousBuffer(NEXT, true);
4488                         break;
4489
4490                 case LFUN_BUFFER_PREVIOUS:
4491                         gotoNextOrPreviousBuffer(PREV, false);
4492                         break;
4493
4494                 case LFUN_BUFFER_MOVE_PREVIOUS:
4495                         gotoNextOrPreviousBuffer(PREV, true);
4496                         break;
4497
4498                 case LFUN_BUFFER_CHKTEX:
4499                         LASSERT(doc_buffer, break);
4500                         doc_buffer->runChktex();
4501                         break;
4502
4503                 case LFUN_COMMAND_EXECUTE: {
4504                         command_execute_ = true;
4505                         minibuffer_focus_ = true;
4506                         break;
4507                 }
4508                 case LFUN_DROP_LAYOUTS_CHOICE:
4509                         d.layout_->showPopup();
4510                         break;
4511
4512                 case LFUN_MENU_OPEN:
4513                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
4514                                 menu->exec(QCursor::pos());
4515                         break;
4516
4517                 case LFUN_FILE_INSERT: {
4518                         bool const ignore_lang = cmd.getArg(1) == "ignorelang";
4519                         if (insertLyXFile(from_utf8(cmd.getArg(0)), ignore_lang)) {
4520                                 dr.forceBufferUpdate();
4521                                 dr.screenUpdate(Update::Force);
4522                         }
4523                         break;
4524                 }
4525
4526                 case LFUN_FILE_INSERT_PLAINTEXT:
4527                 case LFUN_FILE_INSERT_PLAINTEXT_PARA: {
4528                         string const fname = to_utf8(cmd.argument());
4529                         if (!fname.empty() && !FileName::isAbsolute(fname)) {
4530                                 dr.setMessage(_("Absolute filename expected."));
4531                                 break;
4532                         }
4533
4534                         FileName filename(fname);
4535                         if (fname.empty()) {
4536                                 FileDialog dlg(qt_("Select file to insert"));
4537
4538                                 FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
4539                                         QStringList(qt_("All Files (*)")));
4540
4541                                 if (result.first == FileDialog::Later || result.second.isEmpty()) {
4542                                         dr.setMessage(_("Canceled."));
4543                                         break;
4544                                 }
4545
4546                                 filename.set(fromqstr(result.second));
4547                         }
4548
4549                         if (bv) {
4550                                 FuncRequest const new_cmd(cmd, filename.absoluteFilePath());
4551                                 bv->dispatch(new_cmd, dr);
4552                         }
4553                         break;
4554                 }
4555
4556                 case LFUN_BUFFER_RELOAD: {
4557                         LASSERT(doc_buffer, break);
4558
4559                         // drop changes?
4560                         bool drop = (cmd.argument() == "dump");
4561
4562                         int ret = 0;
4563                         if (!drop && !doc_buffer->isClean()) {
4564                                 docstring const file =
4565                                         makeDisplayPath(doc_buffer->absFileName(), 20);
4566                                 if (doc_buffer->notifiesExternalModification()) {
4567                                         docstring text = _("The current version will be lost. "
4568                                             "Are you sure you want to load the version on disk "
4569                                             "of the document %1$s?");
4570                                         ret = Alert::prompt(_("Reload saved document?"),
4571                                                             bformat(text, file), 1, 1,
4572                                                             _("&Reload"), _("&Cancel"));
4573                                 } else {
4574                                         docstring text = _("Any changes will be lost. "
4575                                             "Are you sure you want to revert to the saved version "
4576                                             "of the document %1$s?");
4577                                         ret = Alert::prompt(_("Revert to saved document?"),
4578                                                             bformat(text, file), 1, 1,
4579                                                             _("&Revert"), _("&Cancel"));
4580                                 }
4581                         }
4582
4583                         if (ret == 0) {
4584                                 doc_buffer->markClean();
4585                                 reloadBuffer(*doc_buffer);
4586                                 dr.forceBufferUpdate();
4587                         }
4588                         break;
4589                 }
4590
4591                 case LFUN_BUFFER_RESET_EXPORT:
4592                         LASSERT(doc_buffer, break);
4593                         doc_buffer->requireFreshStart(true);
4594                         dr.setMessage(_("Buffer export reset."));
4595                         break;
4596
4597                 case LFUN_BUFFER_WRITE:
4598                         LASSERT(doc_buffer, break);
4599                         saveBuffer(*doc_buffer);
4600                         break;
4601
4602                 case LFUN_BUFFER_WRITE_AS:
4603                         LASSERT(doc_buffer, break);
4604                         renameBuffer(*doc_buffer, cmd.argument());
4605                         break;
4606
4607                 case LFUN_BUFFER_WRITE_AS_TEMPLATE:
4608                         LASSERT(doc_buffer, break);
4609                         renameBuffer(*doc_buffer, cmd.argument(),
4610                                      LV_WRITE_AS_TEMPLATE);
4611                         break;
4612
4613                 case LFUN_BUFFER_WRITE_ALL: {
4614                         Buffer * first = theBufferList().first();
4615                         if (!first)
4616                                 break;
4617                         message(_("Saving all documents..."));
4618                         // We cannot use a for loop as the buffer list cycles.
4619                         Buffer * b = first;
4620                         do {
4621                                 if (!b->isClean()) {
4622                                         saveBuffer(*b);
4623                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
4624                                 }
4625                                 b = theBufferList().next(b);
4626                         } while (b != first);
4627                         dr.setMessage(_("All documents saved."));
4628                         break;
4629                 }
4630
4631                 case LFUN_MASTER_BUFFER_FORALL: {
4632                         if (!doc_buffer)
4633                                 break;
4634
4635                         FuncRequest funcToRun = lyxaction.lookupFunc(cmd.getLongArg(0));
4636                         funcToRun.allowAsync(false);
4637
4638                         for (Buffer const * buf : doc_buffer->allRelatives()) {
4639                                 // Switch to other buffer view and resend cmd
4640                                 lyx::dispatch(FuncRequest(
4641                                         LFUN_BUFFER_SWITCH, buf->absFileName()));
4642                                 lyx::dispatch(funcToRun);
4643                         }
4644                         // switch back
4645                         lyx::dispatch(FuncRequest(
4646                                 LFUN_BUFFER_SWITCH, doc_buffer->absFileName()));
4647                         break;
4648                 }
4649
4650                 case LFUN_BUFFER_EXTERNAL_MODIFICATION_CLEAR:
4651                         LASSERT(doc_buffer, break);
4652                         doc_buffer->clearExternalModification();
4653                         break;
4654
4655                 case LFUN_BUFFER_CLOSE:
4656                         closeBuffer();
4657                         break;
4658
4659                 case LFUN_BUFFER_CLOSE_ALL:
4660                         closeBufferAll();
4661                         break;
4662
4663                 case LFUN_DEVEL_MODE_TOGGLE:
4664                         devel_mode_ = !devel_mode_;
4665                         if (devel_mode_)
4666                                 dr.setMessage(_("Developer mode is now enabled."));
4667                         else
4668                                 dr.setMessage(_("Developer mode is now disabled."));
4669                         break;
4670
4671                 case LFUN_TOOLBAR_SET: {
4672                         string const name = cmd.getArg(0);
4673                         string const state = cmd.getArg(1);
4674                         if (GuiToolbar * t = toolbar(name))
4675                                 t->setState(state);
4676                         break;
4677                 }
4678
4679                 case LFUN_TOOLBAR_TOGGLE: {
4680                         string const name = cmd.getArg(0);
4681                         if (GuiToolbar * t = toolbar(name))
4682                                 t->toggle();
4683                         break;
4684                 }
4685
4686                 case LFUN_TOOLBAR_MOVABLE: {
4687                         string const name = cmd.getArg(0);
4688                         if (name == "*") {
4689                                 // toggle (all) toolbars movablility
4690                                 toolbarsMovable_ = !toolbarsMovable_;
4691                                 for (ToolbarInfo const & ti : guiApp->toolbars()) {
4692                                         GuiToolbar * tb = toolbar(ti.name);
4693                                         if (tb && tb->isMovable() != toolbarsMovable_)
4694                                                 // toggle toolbar movablity if it does not fit lock
4695                                                 // (all) toolbars positions state silent = true, since
4696                                                 // status bar notifications are slow
4697                                                 tb->movable(true);
4698                                 }
4699                                 if (toolbarsMovable_)
4700                                         dr.setMessage(_("Toolbars unlocked."));
4701                                 else
4702                                         dr.setMessage(_("Toolbars locked."));
4703                         } else if (GuiToolbar * tb = toolbar(name))
4704                                 // toggle current toolbar movablity
4705                                 tb->movable();
4706                         // update lock (all) toolbars positions
4707                         updateLockToolbars();
4708                         break;
4709                 }
4710
4711                 case LFUN_ICON_SIZE: {
4712                         QSize size = d.iconSize(cmd.argument());
4713                         setIconSize(size);
4714                         dr.setMessage(bformat(_("Icon size set to %1$dx%2$d."),
4715                                                 size.width(), size.height()));
4716                         break;
4717                 }
4718
4719                 case LFUN_DIALOG_UPDATE: {
4720                         string const name = to_utf8(cmd.argument());
4721                         if (name == "prefs" || name == "document")
4722                                 updateDialog(name, string());
4723                         else if (name == "paragraph")
4724                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
4725                         else if (currentBufferView()) {
4726                                 Inset * inset = currentBufferView()->editedInset(name);
4727                                 // Can only update a dialog connected to an existing inset
4728                                 if (inset) {
4729                                         // FIXME: get rid of this indirection; GuiView ask the inset
4730                                         // if he is kind enough to update itself...
4731                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
4732                                         //FIXME: pass DispatchResult here?
4733                                         inset->dispatch(currentBufferView()->cursor(), fr);
4734                                 }
4735                         }
4736                         break;
4737                 }
4738
4739                 case LFUN_DIALOG_TOGGLE: {
4740                         FuncCode const func_code = isDialogVisible(cmd.getArg(0))
4741                                 ? LFUN_DIALOG_HIDE : LFUN_DIALOG_SHOW;
4742                         dispatch(FuncRequest(func_code, cmd.argument()), dr);
4743                         break;
4744                 }
4745
4746                 case LFUN_DIALOG_DISCONNECT_INSET:
4747                         disconnectDialog(to_utf8(cmd.argument()));
4748                         break;
4749
4750                 case LFUN_DIALOG_HIDE: {
4751                         guiApp->hideDialogs(to_utf8(cmd.argument()), nullptr);
4752                         break;
4753                 }
4754
4755                 case LFUN_DIALOG_SHOW: {
4756                         string const name = cmd.getArg(0);
4757                         string sdata = trim(to_utf8(cmd.argument()).substr(name.size()));
4758
4759                         if (name == "latexlog") {
4760                                 // getStatus checks that
4761                                 LASSERT(doc_buffer, break);
4762                                 Buffer::LogType type;
4763                                 string const logfile = doc_buffer->logName(&type);
4764                                 switch (type) {
4765                                 case Buffer::latexlog:
4766                                         sdata = "latex ";
4767                                         break;
4768                                 case Buffer::buildlog:
4769                                         sdata = "literate ";
4770                                         break;
4771                                 }
4772                                 sdata += Lexer::quoteString(logfile);
4773                                 showDialog("log", sdata);
4774                         } else if (name == "vclog") {
4775                                 // getStatus checks that
4776                                 LASSERT(doc_buffer, break);
4777                                 string const sdata2 = "vc " +
4778                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
4779                                 showDialog("log", sdata2);
4780                         } else if (name == "symbols") {
4781                                 sdata = bv->cursor().getEncoding()->name();
4782                                 if (!sdata.empty())
4783                                         showDialog("symbols", sdata);
4784                         } else if (name == "findreplace") {
4785                                 sdata = to_utf8(bv->cursor().selectionAsString(false));
4786                                 showDialog(name, sdata);
4787                         // bug 5274
4788                         } else if (name == "prefs" && isFullScreen()) {
4789                                 lfunUiToggle("fullscreen");
4790                                 showDialog("prefs", sdata);
4791                         } else
4792                                 showDialog(name, sdata);
4793                         break;
4794                 }
4795
4796                 case LFUN_MESSAGE:
4797                         dr.setMessage(cmd.argument());
4798                         break;
4799
4800                 case LFUN_UI_TOGGLE: {
4801                         string arg = cmd.getArg(0);
4802                         if (!lfunUiToggle(arg)) {
4803                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
4804                                 dr.setMessage(bformat(msg, from_utf8(arg)));
4805                         }
4806                         // Make sure the keyboard focus stays in the work area.
4807                         setFocus();
4808                         break;
4809                 }
4810
4811                 case LFUN_VIEW_SPLIT: {
4812                         LASSERT(doc_buffer, break);
4813                         string const orientation = cmd.getArg(0);
4814                         d.splitter_->setOrientation(orientation == "vertical"
4815                                 ? Qt::Vertical : Qt::Horizontal);
4816                         TabWorkArea * twa = addTabWorkArea();
4817                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
4818                         setCurrentWorkArea(wa);
4819                         break;
4820                 }
4821
4822                 case LFUN_TAB_GROUP_NEXT:
4823                         gotoNextTabWorkArea(NEXT);
4824                         break;
4825
4826                 case LFUN_TAB_GROUP_PREVIOUS:
4827                         gotoNextTabWorkArea(PREV);
4828                         break;
4829
4830                 case LFUN_TAB_GROUP_CLOSE:
4831                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
4832                                 closeTabWorkArea(twa);
4833                                 d.current_work_area_ = nullptr;
4834                                 twa = d.currentTabWorkArea();
4835                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
4836                                 if (twa) {
4837                                         // Make sure the work area is up to date.
4838                                         setCurrentWorkArea(twa->currentWorkArea());
4839                                 } else {
4840                                         setCurrentWorkArea(nullptr);
4841                                 }
4842                         }
4843                         break;
4844
4845                 case LFUN_VIEW_CLOSE:
4846                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
4847                                 closeWorkArea(twa->currentWorkArea());
4848                                 d.current_work_area_ = nullptr;
4849                                 twa = d.currentTabWorkArea();
4850                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
4851                                 if (twa) {
4852                                         // Make sure the work area is up to date.
4853                                         setCurrentWorkArea(twa->currentWorkArea());
4854                                 } else {
4855                                         setCurrentWorkArea(nullptr);
4856                                 }
4857                         }
4858                         break;
4859
4860                 case LFUN_COMPLETION_INLINE:
4861                         if (d.current_work_area_)
4862                                 d.current_work_area_->completer().showInline();
4863                         break;
4864
4865                 case LFUN_COMPLETION_POPUP:
4866                         if (d.current_work_area_)
4867                                 d.current_work_area_->completer().showPopup();
4868                         break;
4869
4870
4871                 case LFUN_COMPLETE:
4872                         if (d.current_work_area_)
4873                                 d.current_work_area_->completer().tab();
4874                         break;
4875
4876                 case LFUN_COMPLETION_CANCEL:
4877                         if (d.current_work_area_) {
4878                                 if (d.current_work_area_->completer().popupVisible())
4879                                         d.current_work_area_->completer().hidePopup();
4880                                 else
4881                                         d.current_work_area_->completer().hideInline();
4882                         }
4883                         break;
4884
4885                 case LFUN_COMPLETION_ACCEPT:
4886                         if (d.current_work_area_)
4887                                 d.current_work_area_->completer().activate();
4888                         break;
4889
4890                 case LFUN_BUFFER_ZOOM_IN:
4891                 case LFUN_BUFFER_ZOOM_OUT:
4892                 case LFUN_BUFFER_ZOOM: {
4893                         zoom_ratio_ = zoomRatio(cmd, zoom_ratio_);
4894
4895                         // Actual zoom value: default zoom + fractional extra value
4896                         int zoom = (int)(lyxrc.defaultZoom * zoom_ratio_);
4897                         zoom = min(max(zoom, zoom_min_), zoom_max_);
4898
4899                         setCurrentZoom(zoom);
4900
4901                         dr.setMessage(bformat(_("Zoom level is now %1$d% (default value: %2$d%)"),
4902                                               lyxrc.currentZoom, lyxrc.defaultZoom));
4903
4904                         guiApp->fontLoader().update();
4905                         // Regenerate instant previews
4906                         if (lyxrc.preview != LyXRC::PREVIEW_OFF
4907                             && doc_buffer && doc_buffer->loader())
4908                                 doc_buffer->loader()->refreshPreviews();
4909                         dr.screenUpdate(Update::ForceAll | Update::FitCursor);
4910                         break;
4911                 }
4912
4913                 case LFUN_VC_REGISTER:
4914                 case LFUN_VC_RENAME:
4915                 case LFUN_VC_COPY:
4916                 case LFUN_VC_CHECK_IN:
4917                 case LFUN_VC_CHECK_OUT:
4918                 case LFUN_VC_REPO_UPDATE:
4919                 case LFUN_VC_LOCKING_TOGGLE:
4920                 case LFUN_VC_REVERT:
4921                 case LFUN_VC_UNDO_LAST:
4922                 case LFUN_VC_COMMAND:
4923                 case LFUN_VC_COMPARE:
4924                         dispatchVC(cmd, dr);
4925                         break;
4926
4927                 case LFUN_SERVER_GOTO_FILE_ROW:
4928                         if(goToFileRow(to_utf8(cmd.argument())))
4929                                 dr.screenUpdate(Update::Force | Update::FitCursor);
4930                         break;
4931
4932                 case LFUN_LYX_ACTIVATE:
4933                         activateWindow();
4934                         break;
4935
4936                 case LFUN_WINDOW_RAISE:
4937                         raise();
4938                         activateWindow();
4939                         showNormal();
4940                         break;
4941
4942                 case LFUN_FORWARD_SEARCH: {
4943                         // it seems safe to assume we have a document buffer, since
4944                         // getStatus wants one.
4945                         LASSERT(doc_buffer, break);
4946                         Buffer const * doc_master = doc_buffer->masterBuffer();
4947                         FileName const path(doc_master->temppath());
4948                         string const texname = doc_master->isChild(doc_buffer)
4949                                 ? DocFileName(changeExtension(
4950                                         doc_buffer->absFileName(),
4951                                                 "tex")).mangledFileName()
4952                                 : doc_buffer->latexName();
4953                         string const fulltexname =
4954                                 support::makeAbsPath(texname, doc_master->temppath()).absFileName();
4955                         string const mastername =
4956                                 removeExtension(doc_master->latexName());
4957                         FileName const dviname(addName(path.absFileName(),
4958                                         addExtension(mastername, "dvi")));
4959                         FileName const pdfname(addName(path.absFileName(),
4960                                         addExtension(mastername, "pdf")));
4961                         bool const have_dvi = dviname.exists();
4962                         bool const have_pdf = pdfname.exists();
4963                         if (!have_dvi && !have_pdf) {
4964                                 dr.setMessage(_("Please, preview the document first."));
4965                                 break;
4966                         }
4967                         bool const goto_dvi = have_dvi && !lyxrc.forward_search_dvi.empty();
4968                         bool const goto_pdf = have_pdf && !lyxrc.forward_search_pdf.empty();
4969                         string outname = dviname.onlyFileName();
4970                         string command = lyxrc.forward_search_dvi;
4971                         if ((!goto_dvi || goto_pdf) &&
4972                             pdfname.lastModified() > dviname.lastModified()) {
4973                                 outname = pdfname.onlyFileName();
4974                                 command = lyxrc.forward_search_pdf;
4975                         }
4976
4977                         DocIterator cur = bv->cursor();
4978                         int row = doc_buffer->texrow().rowFromDocIterator(cur).first;
4979                         LYXERR(Debug::ACTION, "Forward search: row:" << row
4980                                    << " cur:" << cur);
4981                         if (row == -1 || command.empty()) {
4982                                 dr.setMessage(_("Couldn't proceed."));
4983                                 break;
4984                         }
4985                         string texrow = convert<string>(row);
4986
4987                         command = subst(command, "$$n", texrow);
4988                         command = subst(command, "$$f", fulltexname);
4989                         command = subst(command, "$$t", texname);
4990                         command = subst(command, "$$o", outname);
4991
4992                         volatile PathChanger p(path);
4993                         Systemcall one;
4994                         one.startscript(Systemcall::DontWait, command);
4995                         break;
4996                 }
4997
4998                 case LFUN_SPELLING_CONTINUOUSLY:
4999                         lyxrc.spellcheck_continuously = !lyxrc.spellcheck_continuously;
5000                         dr.screenUpdate(Update::Force);
5001                         break;
5002
5003                 case LFUN_CITATION_OPEN: {
5004                         string pdfv, psv;
5005                         if (theFormats().getFormat("pdf"))
5006                                 pdfv = theFormats().getFormat("pdf")->viewer();
5007                         if (theFormats().getFormat("ps"))
5008                                 psv = theFormats().getFormat("ps")->viewer();
5009                         frontend::showTarget(argument, pdfv, psv);
5010                         break;
5011                 }
5012
5013                 default:
5014                         // The LFUN must be for one of BufferView, Buffer or Cursor;
5015                         // let's try that:
5016                         dispatchToBufferView(cmd, dr);
5017                         break;
5018         }
5019
5020         // Need to update bv because many LFUNs here might have destroyed it
5021         bv = currentBufferView();
5022
5023         // Clear non-empty selections
5024         // (e.g. from a "char-forward-select" followed by "char-backward-select")
5025         if (bv) {
5026                 Cursor & cur = bv->cursor();
5027                 if ((cur.selection() && cur.selBegin() == cur.selEnd())) {
5028                         cur.clearSelection();
5029                 }
5030         }
5031 }
5032
5033
5034 bool GuiView::lfunUiToggle(string const & ui_component)
5035 {
5036         if (ui_component == "scrollbar") {
5037                 // hide() is of no help
5038                 if (d.current_work_area_->verticalScrollBarPolicy() ==
5039                         Qt::ScrollBarAlwaysOff)
5040
5041                         d.current_work_area_->setVerticalScrollBarPolicy(
5042                                 Qt::ScrollBarAsNeeded);
5043                 else
5044                         d.current_work_area_->setVerticalScrollBarPolicy(
5045                                 Qt::ScrollBarAlwaysOff);
5046         } else if (ui_component == "statusbar") {
5047                 statusBar()->setVisible(!statusBar()->isVisible());
5048         } else if (ui_component == "menubar") {
5049                 menuBar()->setVisible(!menuBar()->isVisible());
5050         } else if (ui_component == "zoomlevel") {
5051                 zoom_value_->setVisible(!zoom_value_->isVisible());
5052         } else if (ui_component == "zoomslider") {
5053                 zoom_slider_->setVisible(!zoom_slider_->isVisible());
5054                 zoom_in_->setVisible(zoom_slider_->isVisible());
5055                 zoom_out_->setVisible(zoom_slider_->isVisible());
5056         } else if (ui_component == "statistics-w") {
5057                 word_count_enabled_ = !word_count_enabled_;
5058                 if (statsEnabled())
5059                         showStats();
5060         } else if (ui_component == "statistics-cb") {
5061                 char_count_enabled_ = !char_count_enabled_;
5062                 if (statsEnabled())
5063                         showStats();
5064         } else if (ui_component == "statistics-c") {
5065                 char_nb_count_enabled_ = !char_nb_count_enabled_;
5066                 if (statsEnabled())
5067                         showStats();
5068         } else if (ui_component == "frame") {
5069                 int const l = contentsMargins().left();
5070
5071                 //are the frames in default state?
5072                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
5073                 if (l == 0) {
5074 #if QT_VERSION >  0x050903
5075                         setAttribute(Qt::WA_ContentsMarginsRespectsSafeArea, false);
5076 #endif
5077                         setContentsMargins(-2, -2, -2, -2);
5078                 } else {
5079 #if QT_VERSION >  0x050903
5080                         setAttribute(Qt::WA_ContentsMarginsRespectsSafeArea, true);
5081 #endif
5082                         setContentsMargins(0, 0, 0, 0);
5083                 }
5084         } else
5085         if (ui_component == "fullscreen") {
5086                 toggleFullScreen();
5087         } else
5088                 return false;
5089         stat_counts_->setVisible(statsEnabled());
5090         return true;
5091 }
5092
5093
5094 void GuiView::cancelExport()
5095 {
5096         Systemcall::killscript();
5097         // stop busy signal immediately so that in the subsequent
5098         // "Export canceled" prompt the status bar icons are accurate.
5099         Q_EMIT scriptKilled();
5100 }
5101
5102
5103 void GuiView::toggleFullScreen()
5104 {
5105         setWindowState(windowState() ^ Qt::WindowFullScreen);
5106 }
5107
5108
5109 Buffer const * GuiView::updateInset(Inset const * inset)
5110 {
5111         if (!inset)
5112                 return nullptr;
5113
5114         Buffer const * inset_buffer = &(inset->buffer());
5115
5116         for (int i = 0; i != d.splitter_->count(); ++i) {
5117                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
5118                 if (!wa)
5119                         continue;
5120                 Buffer const * buffer = &(wa->bufferView().buffer());
5121                 if (inset_buffer == buffer)
5122                         wa->scheduleRedraw(true);
5123         }
5124         return inset_buffer;
5125 }
5126
5127
5128 void GuiView::restartCaret()
5129 {
5130         /* When we move around, or type, it's nice to be able to see
5131          * the caret immediately after the keypress.
5132          */
5133         if (d.current_work_area_)
5134                 d.current_work_area_->startBlinkingCaret();
5135
5136         // Take this occasion to update the other GUI elements.
5137         updateDialogs();
5138         updateStatusBar();
5139 }
5140
5141
5142 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
5143 {
5144         if (d.current_work_area_)
5145                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
5146 }
5147
5148 namespace {
5149
5150 // This list should be kept in sync with the list of insets in
5151 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
5152 // dialog should have the same name as the inset.
5153 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
5154 // docs in LyXAction.cpp.
5155
5156 char const * const dialognames[] = {
5157
5158 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
5159 "citation", "compare", "comparehistory", "counter", "document", "errorlist", "ert",
5160 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
5161 "href", "include", "index", "index_print", "info", "listings", "label", "line",
5162 "log", "lyxfiles", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
5163 "nomencl_print", "note", "paragraph", "phantom", "prefs", "ref",
5164 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
5165 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
5166
5167 char const * const * const end_dialognames =
5168         dialognames + (sizeof(dialognames) / sizeof(char *));
5169
5170 class cmpCStr {
5171 public:
5172         cmpCStr(char const * name) : name_(name) {}
5173         bool operator()(char const * other) {
5174                 return strcmp(other, name_) == 0;
5175         }
5176 private:
5177         char const * name_;
5178 };
5179
5180
5181 bool isValidName(string const & name)
5182 {
5183         return find_if(dialognames, end_dialognames,
5184                 cmpCStr(name.c_str())) != end_dialognames;
5185 }
5186
5187 } // namespace
5188
5189
5190 void GuiView::resetDialogs()
5191 {
5192         // Make sure that no LFUN uses any GuiView.
5193         guiApp->setCurrentView(nullptr);
5194         saveLayout();
5195         saveUISettings();
5196         menuBar()->clear();
5197         constructToolbars();
5198         guiApp->menus().fillMenuBar(menuBar(), this, false);
5199         d.layout_->updateContents(true);
5200         // Now update controls with current buffer.
5201         guiApp->setCurrentView(this);
5202         restoreLayout();
5203         restartCaret();
5204 }
5205
5206
5207 void GuiView::flatGroupBoxes(const QObject * widget, bool flag)
5208 {
5209         for (QObject * child: widget->children()) {
5210                 if (child->inherits("QGroupBox")) {
5211                         QGroupBox * box = (QGroupBox*) child;
5212                         box->setFlat(flag);
5213                 } else {
5214                         flatGroupBoxes(child, flag);
5215                 }
5216         }
5217 }
5218
5219
5220 Dialog * GuiView::find(string const & name, bool hide_it) const
5221 {
5222         if (!isValidName(name))
5223                 return nullptr;
5224
5225         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
5226
5227         if (it != d.dialogs_.end()) {
5228                 if (hide_it)
5229                         it->second->hideView();
5230                 return it->second.get();
5231         }
5232         return nullptr;
5233 }
5234
5235
5236 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
5237 {
5238         Dialog * dialog = find(name, hide_it);
5239         if (dialog != nullptr)
5240                 return dialog;
5241
5242         dialog = build(name);
5243         d.dialogs_[name].reset(dialog);
5244         // Force a uniform style for group boxes
5245         // On Mac non-flat works better, on Linux flat is standard
5246         flatGroupBoxes(dialog->asQWidget(), guiApp->platformName() != "cocoa");
5247         if (lyxrc.allow_geometry_session)
5248                 dialog->restoreSession();
5249         if (hide_it)
5250                 dialog->hideView();
5251         return dialog;
5252 }
5253
5254
5255 void GuiView::showDialog(string const & name, string const & sdata,
5256         Inset * inset)
5257 {
5258         triggerShowDialog(toqstr(name), toqstr(sdata), inset);
5259 }
5260
5261
5262 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
5263         Inset * inset)
5264 {
5265         if (d.in_show_)
5266                 return;
5267
5268         const string name = fromqstr(qname);
5269         const string sdata = fromqstr(qdata);
5270
5271         d.in_show_ = true;
5272         try {
5273                 Dialog * dialog = findOrBuild(name, false);
5274                 if (dialog) {
5275                         bool const visible = dialog->isVisibleView();
5276                         dialog->showData(sdata);
5277                         if (currentBufferView())
5278                                 currentBufferView()->editInset(name, inset);
5279                         // We only set the focus to the new dialog if it was not yet
5280                         // visible in order not to change the existing previous behaviour
5281                         if (visible) {
5282                                 // activateWindow is needed for floating dockviews
5283                                 dialog->asQWidget()->raise();
5284                                 dialog->asQWidget()->activateWindow();
5285                                 if (dialog->wantInitialFocus())
5286                                         dialog->asQWidget()->setFocus();
5287                         }
5288                 }
5289         }
5290         catch (ExceptionMessage const &) {
5291                 d.in_show_ = false;
5292                 throw;
5293         }
5294         d.in_show_ = false;
5295 }
5296
5297
5298 bool GuiView::isDialogVisible(string const & name) const
5299 {
5300         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
5301         if (it == d.dialogs_.end())
5302                 return false;
5303         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
5304 }
5305
5306
5307 void GuiView::hideDialog(string const & name, Inset * inset)
5308 {
5309         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
5310         if (it == d.dialogs_.end())
5311                 return;
5312
5313         if (inset) {
5314                 if (!currentBufferView())
5315                         return;
5316                 if (inset != currentBufferView()->editedInset(name))
5317                         return;
5318         }
5319
5320         Dialog * const dialog = it->second.get();
5321         if (dialog->isVisibleView())
5322                 dialog->hideView();
5323         if (currentBufferView())
5324                 currentBufferView()->editInset(name, nullptr);
5325 }
5326
5327
5328 void GuiView::disconnectDialog(string const & name)
5329 {
5330         if (!isValidName(name))
5331                 return;
5332         if (currentBufferView())
5333                 currentBufferView()->editInset(name, nullptr);
5334 }
5335
5336
5337 void GuiView::hideAll() const
5338 {
5339         for(auto const & dlg_p : d.dialogs_)
5340                 dlg_p.second->hideView();
5341 }
5342
5343
5344 void GuiView::updateDialogs()
5345 {
5346         for(auto const & dlg_p : d.dialogs_) {
5347                 Dialog * dialog = dlg_p.second.get();
5348                 if (dialog) {
5349                         if (dialog->needBufferOpen() && !documentBufferView())
5350                                 hideDialog(fromqstr(dialog->name()), nullptr);
5351                         else if (dialog->isVisibleView())
5352                                 dialog->checkStatus();
5353                 }
5354         }
5355         updateToolbars();
5356         updateLayoutList();
5357 }
5358
5359
5360 Dialog * GuiView::build(string const & name)
5361 {
5362         return createDialog(*this, name);
5363 }
5364
5365
5366 SEMenu::SEMenu(QWidget * parent)
5367 {
5368         QAction * action = addAction(qt_("Disable Shell Escape"));
5369         connect(action, SIGNAL(triggered()),
5370                 parent, SLOT(disableShellEscape()));
5371 }
5372
5373
5374 void PressableSvgWidget::mousePressEvent(QMouseEvent * event)
5375 {
5376         if (event->button() == Qt::LeftButton) {
5377         Q_EMIT pressed();
5378     }
5379 }
5380
5381 } // namespace frontend
5382 } // namespace lyx
5383
5384 #include "moc_GuiView.cpp"