src/frontends/qt4/GuiView.cpp

   1 /**
   2  * \file GuiView.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  * \author Peter Kümmel
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiView.h"
  17
  18 #include "DispatchResult.h"
  19 #include "FileDialog.h"
  20 #include "FontLoader.h"
  21 #include "GuiApplication.h"
  22 #include "GuiCommandBuffer.h"
  23 #include "GuiCompleter.h"
  24 #include "GuiKeySymbol.h"
  25 #include "GuiToc.h"
  26 #include "GuiToolbar.h"
  27 #include "GuiWorkArea.h"
  28 #include "GuiProgress.h"
  29 #include "LayoutBox.h"
  30 #include "Menus.h"
  31 #include "TocModel.h"
  32
  33 #include "qt_helpers.h"
  34 #include "support/filetools.h"
  35
  36 #include "frontends/alert.h"
  37 #include "frontends/KeySymbol.h"
  38
  39 #include "buffer_funcs.h"
  40 #include "Buffer.h"
  41 #include "BufferList.h"
  42 #include "BufferParams.h"
  43 #include "BufferView.h"
  44 #include "Compare.h"
  45 #include "Converter.h"
  46 #include "Cursor.h"
  47 #include "CutAndPaste.h"
  48 #include "Encoding.h"
  49 #include "ErrorList.h"
  50 #include "Format.h"
  51 #include "FuncStatus.h"
  52 #include "FuncRequest.h"
  53 #include "Intl.h"
  54 #include "Layout.h"
  55 #include "Lexer.h"
  56 #include "LyXAction.h"
  57 #include "LyX.h"
  58 #include "LyXRC.h"
  59 #include "LyXVC.h"
  60 #include "Paragraph.h"
  61 #include "SpellChecker.h"
  62 #include "Session.h"
  63 #include "TexRow.h"
  64 #include "TextClass.h"
  65 #include "Text.h"
  66 #include "Toolbars.h"
  67 #include "version.h"
  68
  69 #include "support/convert.h"
  70 #include "support/debug.h"
  71 #include "support/ExceptionMessage.h"
  72 #include "support/FileName.h"
  73 #include "support/filetools.h"
  74 #include "support/gettext.h"
  75 #include "support/filetools.h"
  76 #include "support/ForkedCalls.h"
  77 #include "support/lassert.h"
  78 #include "support/lstrings.h"
  79 #include "support/os.h"
  80 #include "support/Package.h"
  81 #include "support/PathChanger.h"
  82 #include "support/Systemcall.h"
  83 #include "support/Timeout.h"
  84 #include "support/ProgressInterface.h"
  85
  86 #include <QAction>
  87 #include <QApplication>
  88 #include <QCloseEvent>
  89 #include <QDebug>
  90 #include <QDesktopWidget>
  91 #include <QDragEnterEvent>
  92 #include <QDropEvent>
  93 #include <QFuture>
  94 #include <QFutureWatcher>
  95 #include <QLabel>
  96 #include <QList>
  97 #include <QMenu>
  98 #include <QMenuBar>
  99 #include <QMimeData>
 100 #include <QMovie>
 101 #include <QPainter>
 102 #include <QPixmap>
 103 #include <QPixmapCache>
 104 #include <QPoint>
 105 #include <QPushButton>
 106 #include <QScrollBar>
 107 #include <QSettings>
 108 #include <QShowEvent>
 109 #include <QSplitter>
 110 #include <QStackedWidget>
 111 #include <QStatusBar>
 112 #include <QSvgRenderer>
 113 #include <QtConcurrentRun>
 114 #include <QTime>
 115 #include <QTimer>
 116 #include <QToolBar>
 117 #include <QUrl>
 118
 119
 120
 121 // sync with GuiAlert.cpp
 122 #define EXPORT_in_THREAD 1
 123
 124
 125 #include "support/bind.h"
 126
 127 #include <sstream>
 128
 129 #ifdef HAVE_SYS_TIME_H
 130 # include <sys/time.h>
 131 #endif
 132 #ifdef HAVE_UNISTD_H
 133 # include <unistd.h>
 134 #endif
 135
 136
 137 using namespace std;
 138 using namespace lyx::support;
 139
 140 namespace lyx {
 141
 142 using support::addExtension;
 143 using support::changeExtension;
 144 using support::removeExtension;
 145
 146 namespace frontend {
 147
 148 namespace {
 149
 150 class BackgroundWidget : public QWidget
 151 {
 152 public:
 153         BackgroundWidget(int width, int height)
 154                 : width_(width), height_(height)
 155         {
 156                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 157                 if (!lyxrc.show_banner)
 158                         return;
 159                 /// The text to be written on top of the pixmap
 160                 QString const text = lyx_version ?
 161                         qt_("version ") + lyx_version : qt_("unknown version");
 162 #if QT_VERSION >= 0x050000
 163                 QString imagedir = "images/";
 164                 FileName fname = imageLibFileSearch(imagedir, "banner", "svgz");
 165                 QSvgRenderer svgRenderer(toqstr(fname.absFileName()));
 166                 if (svgRenderer.isValid()) {
 167                         splash_ = QPixmap(splashSize());
 168                         QPainter painter(&splash_);
 169                         svgRenderer.render(&painter);
 170                         splash_.setDevicePixelRatio(pixelRatio());
 171                 } else {
 172                         splash_ = getPixmap("images/", "banner", "png");
 173                 }
 174 #else
 175                 splash_ = getPixmap("images/", "banner", "svgz,png");
 176 #endif
 177
 178                 QPainter pain(&splash_);
 179                 pain.setPen(QColor(0, 0, 0));
 180                 qreal const fsize = fontSize();
 181                 QPointF const position = textPosition();
 182                 LYXERR(Debug::GUI,
 183                         "widget pixel ratio: " << pixelRatio() <<
 184                         " splash pixel ratio: " << splashPixelRatio() <<
 185                         " version text size,position: " << fsize << "@" << position.x() << "+" << position.y());
 186                 QFont font;
 187                 // The font used to display the version info
 188                 font.setStyleHint(QFont::SansSerif);
 189                 font.setWeight(QFont::Bold);
 190                 font.setPointSizeF(fsize);
 191                 pain.setFont(font);
 192                 pain.drawText(position, text);
 193                 setFocusPolicy(Qt::StrongFocus);
 194         }
 195
 196         void paintEvent(QPaintEvent *)
 197         {
 198                 int const w = width_;
 199                 int const h = height_;
 200                 int const x = (width() - w) / 2;
 201                 int const y = (height() - h) / 2;
 202                 LYXERR(Debug::GUI,
 203                         "widget pixel ratio: " << pixelRatio() <<
 204                         " splash pixel ratio: " << splashPixelRatio() <<
 205                         " paint pixmap: " << w << "x" << h << "@" << x << "+" << y);
 206                 QPainter pain(this);
 207                 pain.drawPixmap(x, y, w, h, splash_);
 208         }
 209
 210         void keyPressEvent(QKeyEvent * ev)
 211         {
 212                 KeySymbol sym;
 213                 setKeySymbol(&sym, ev);
 214                 if (sym.isOK()) {
 215                         guiApp->processKeySym(sym, q_key_state(ev->modifiers()));
 216                         ev->accept();
 217                 } else {
 218                         ev->ignore();
 219                 }
 220         }
 221
 222 private:
 223         QPixmap splash_;
 224         int const width_;
 225         int const height_;
 226
 227         /// Current ratio between physical pixels and device-independent pixels
 228         double pixelRatio() const {
 229 #if QT_VERSION >= 0x050000
 230                 return devicePixelRatio();
 231 #else
 232                 return 1.0;
 233 #endif
 234         }
 235
 236         qreal fontSize() const {
 237                 return toqstr(lyxrc.font_sizes[FONT_SIZE_NORMAL]).toDouble();
 238         }
 239
 240         QPointF textPosition() const {
 241                 return QPointF(width_/2 - 18, height_/2 + 45);
 242         }
 243
 244         QSize splashSize() const {
 245                 return QSize(
 246                         static_cast<unsigned int>(width_ * pixelRatio()),
 247                         static_cast<unsigned int>(height_ * pixelRatio()));
 248         }
 249
 250         /// Ratio between physical pixels and device-independent pixels of splash image
 251         double splashPixelRatio() const {
 252 #if QT_VERSION >= 0x050000
 253                 return splash_.devicePixelRatio();
 254 #else
 255                 return 1.0;
 256 #endif
 257         }
 258 };
 259
 260
 261 /// Toolbar store providing access to individual toolbars by name.
 262 typedef map<string, GuiToolbar *> ToolbarMap;
 263
 264 typedef shared_ptr<Dialog> DialogPtr;
 265
 266 } // namespace anon
 267
 268
 269 class GuiView::GuiViewPrivate
 270 {
 271         /// noncopyable
 272         GuiViewPrivate(GuiViewPrivate const &);
 273         void operator=(GuiViewPrivate const &);
 274 public:
 275         GuiViewPrivate(GuiView * gv)
 276                 : gv_(gv), current_work_area_(0), current_main_work_area_(0),
 277                 layout_(0), autosave_timeout_(5000),
 278                 in_show_(false)
 279         {
 280                 // hardcode here the platform specific icon size
 281                 smallIconSize = 16;  // scaling problems
 282                 normalIconSize = 20; // ok, default if iconsize.png is missing
 283                 bigIconSize = 26;       // better for some math icons
 284                 hugeIconSize = 32;      // better for hires displays
 285                 giantIconSize = 48;
 286
 287                 // if it exists, use width of iconsize.png as normal size
 288                 QString const dir = toqstr(addPath("images", lyxrc.icon_set));
 289                 FileName const fn = lyx::libFileSearch(dir, "iconsize.png");
 290                 if (!fn.empty()) {
 291                         QImage image(toqstr(fn.absFileName()));
 292                         if (image.width() < int(smallIconSize))
 293                                 normalIconSize = smallIconSize;
 294                         else if (image.width() > int(giantIconSize))
 295                                 normalIconSize = giantIconSize;
 296                         else
 297                                 normalIconSize = image.width();
 298                 }
 299
 300                 splitter_ = new QSplitter;
 301                 bg_widget_ = new BackgroundWidget(400, 250);
 302                 stack_widget_ = new QStackedWidget;
 303                 stack_widget_->addWidget(bg_widget_);
 304                 stack_widget_->addWidget(splitter_);
 305                 setBackground();
 306
 307                 // TODO cleanup, remove the singleton, handle multiple Windows?
 308                 progress_ = ProgressInterface::instance();
 309                 if (!dynamic_cast<GuiProgress*>(progress_)) {
 310                         progress_ = new GuiProgress;  // TODO who deletes it
 311                         ProgressInterface::setInstance(progress_);
 312                 }
 313                 QObject::connect(
 314                                 dynamic_cast<GuiProgress*>(progress_),
 315                                 SIGNAL(updateStatusBarMessage(QString const&)),
 316                                 gv, SLOT(updateStatusBarMessage(QString const&)));
 317                 QObject::connect(
 318                                 dynamic_cast<GuiProgress*>(progress_),
 319                                 SIGNAL(clearMessageText()),
 320                                 gv, SLOT(clearMessageText()));
 321         }
 322
 323         ~GuiViewPrivate()
 324         {
 325                 delete splitter_;
 326                 delete bg_widget_;
 327                 delete stack_widget_;
 328         }
 329
 330         void setBackground()
 331         {
 332                 stack_widget_->setCurrentWidget(bg_widget_);
 333                 bg_widget_->setUpdatesEnabled(true);
 334                 bg_widget_->setFocus();
 335         }
 336
 337         int tabWorkAreaCount()
 338         {
 339                 return splitter_->count();
 340         }
 341
 342         TabWorkArea * tabWorkArea(int i)
 343         {
 344                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 345         }
 346
 347         TabWorkArea * currentTabWorkArea()
 348         {
 349                 int areas = tabWorkAreaCount();
 350                 if (areas == 1)
 351                         // The first TabWorkArea is always the first one, if any.
 352                         return tabWorkArea(0);
 353
 354                 for (int i = 0; i != areas;  ++i) {
 355                         TabWorkArea * twa = tabWorkArea(i);
 356                         if (current_main_work_area_ == twa->currentWorkArea())
 357                                 return twa;
 358                 }
 359
 360                 // None has the focus so we just take the first one.
 361                 return tabWorkArea(0);
 362         }
 363
 364         int countWorkAreasOf(Buffer & buf)
 365         {
 366                 int areas = tabWorkAreaCount();
 367                 int count = 0;
 368                 for (int i = 0; i != areas;  ++i) {
 369                         TabWorkArea * twa = tabWorkArea(i);
 370                         if (twa->workArea(buf))
 371                                 ++count;
 372                 }
 373                 return count;
 374         }
 375
 376         void setPreviewFuture(QFuture<Buffer::ExportStatus> const & f)
 377         {
 378                 if (processing_thread_watcher_.isRunning()) {
 379                         // we prefer to cancel this preview in order to keep a snappy
 380                         // interface.
 381                         return;
 382                 }
 383                 processing_thread_watcher_.setFuture(f);
 384         }
 385
 386         QSize iconSize(docstring const & icon_size)
 387         {
 388                 unsigned int size;
 389                 if (icon_size == "small")
 390                         size = smallIconSize;
 391                 else if (icon_size == "normal")
 392                         size = normalIconSize;
 393                 else if (icon_size == "big")
 394                         size = bigIconSize;
 395                 else if (icon_size == "huge")
 396                         size = hugeIconSize;
 397                 else if (icon_size == "giant")
 398                         size = giantIconSize;
 399                 else
 400                         size = icon_size.empty() ? normalIconSize : convert<int>(icon_size);
 401
 402                 if (size < smallIconSize)
 403                         size = smallIconSize;
 404
 405                 return QSize(size, size);
 406         }
 407
 408         QSize iconSize(QString const & icon_size)
 409         {
 410                 return iconSize(qstring_to_ucs4(icon_size));
 411         }
 412
 413         string & iconSize(QSize const & qsize)
 414         {
 415                 LATTEST(qsize.width() == qsize.height());
 416
 417                 static string icon_size;
 418
 419                 unsigned int size = qsize.width();
 420
 421                 if (size < smallIconSize)
 422                         size = smallIconSize;
 423
 424                 if (size == smallIconSize)
 425                         icon_size = "small";
 426                 else if (size == normalIconSize)
 427                         icon_size = "normal";
 428                 else if (size == bigIconSize)
 429                         icon_size = "big";
 430                 else if (size == hugeIconSize)
 431                         icon_size = "huge";
 432                 else if (size == giantIconSize)
 433                         icon_size = "giant";
 434                 else
 435                         icon_size = convert<string>(size);
 436
 437                 return icon_size;
 438         }
 439
 440 public:
 441         GuiView * gv_;
 442         GuiWorkArea * current_work_area_;
 443         GuiWorkArea * current_main_work_area_;
 444         QSplitter * splitter_;
 445         QStackedWidget * stack_widget_;
 446         BackgroundWidget * bg_widget_;
 447         /// view's toolbars
 448         ToolbarMap toolbars_;
 449         ProgressInterface* progress_;
 450         /// The main layout box.
 451         /**
 452          * \warning Don't Delete! The layout box is actually owned by
 453          * whichever toolbar contains it. All the GuiView class needs is a
 454          * means of accessing it.
 455          *
 456          * FIXME: replace that with a proper model so that we are not limited
 457          * to only one dialog.
 458          */
 459         LayoutBox * layout_;
 460
 461         ///
 462         map<string, DialogPtr> dialogs_;
 463
 464         unsigned int smallIconSize;
 465         unsigned int normalIconSize;
 466         unsigned int bigIconSize;
 467         unsigned int hugeIconSize;
 468         unsigned int giantIconSize;
 469         ///
 470         QTimer statusbar_timer_;
 471         /// auto-saving of buffers
 472         Timeout autosave_timeout_;
 473         /// flag against a race condition due to multiclicks, see bug #1119
 474         bool in_show_;
 475
 476         ///
 477         TocModels toc_models_;
 478
 479         ///
 480         QFutureWatcher<docstring> autosave_watcher_;
 481         QFutureWatcher<Buffer::ExportStatus> processing_thread_watcher_;
 482         ///
 483         string last_export_format;
 484         string processing_format;
 485
 486         static QSet<Buffer const *> busyBuffers;
 487         static Buffer::ExportStatus previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 488         static Buffer::ExportStatus exportAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 489         static Buffer::ExportStatus compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 490         static docstring autosaveAndDestroy(Buffer const * orig, Buffer * buffer);
 491
 492         template<class T>
 493         static Buffer::ExportStatus runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format);
 494
 495         // TODO syncFunc/previewFunc: use bind
 496         bool asyncBufferProcessing(string const & argument,
 497                                    Buffer const * used_buffer,
 498                                    docstring const & msg,
 499                                    Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
 500                                    Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
 501                                    Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const);
 502
 503         QVector<GuiWorkArea*> guiWorkAreas();
 504 };
 505
 506 QSet<Buffer const *> GuiView::GuiViewPrivate::busyBuffers;
 507
 508
 509 GuiView::GuiView(int id)
 510         : d(*new GuiViewPrivate(this)), id_(id), closing_(false), busy_(0),
 511           command_execute_(false), minibuffer_focus_(false)
 512 {
 513         connect(this, SIGNAL(bufferViewChanged()),
 514                 this, SLOT(onBufferViewChanged()));
 515
 516         // GuiToolbars *must* be initialised before the menu bar.
 517         setIconSize(QSize(d.normalIconSize, d.normalIconSize)); // at least on Mac the default is 32 otherwise, which is huge
 518         constructToolbars();
 519
 520         // set ourself as the current view. This is needed for the menu bar
 521         // filling, at least for the static special menu item on Mac. Otherwise
 522         // they are greyed out.
 523         guiApp->setCurrentView(this);
 524
 525         // Fill up the menu bar.
 526         guiApp->menus().fillMenuBar(menuBar(), this, true);
 527
 528         setCentralWidget(d.stack_widget_);
 529
 530         // Start autosave timer
 531         if (lyxrc.autosave) {
 532                 d.autosave_timeout_.timeout.connect(bind(&GuiView::autoSave, this));
 533                 d.autosave_timeout_.setTimeout(lyxrc.autosave * 1000);
 534                 d.autosave_timeout_.start();
 535         }
 536         connect(&d.statusbar_timer_, SIGNAL(timeout()),
 537                 this, SLOT(clearMessage()));
 538
 539         // We don't want to keep the window in memory if it is closed.
 540         setAttribute(Qt::WA_DeleteOnClose, true);
 541
 542 #if !(defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)) && !defined(Q_OS_MAC)
 543         // QIcon::fromTheme was introduced in Qt 4.6
 544 #if (QT_VERSION >= 0x040600)
 545         // assign an icon to main form. We do not do it under Qt/Win or Qt/Mac,
 546         // since the icon is provided in the application bundle. We use a themed
 547         // version when available and use the bundled one as fallback.
 548         setWindowIcon(QIcon::fromTheme("lyx", getPixmap("images/", "lyx", "svg,png")));
 549 #else
 550         setWindowIcon(getPixmap("images/", "lyx", "svg,png"));
 551 #endif
 552
 553 #endif
 554         resetWindowTitle();
 555
 556         // use tabbed dock area for multiple docks
 557         // (such as "source" and "messages")
 558         setDockOptions(QMainWindow::ForceTabbedDocks);
 559
 560         // For Drag&Drop.
 561         setAcceptDrops(true);
 562
 563         // add busy indicator to statusbar
 564         QLabel * busylabel = new QLabel(statusBar());
 565         statusBar()->addPermanentWidget(busylabel);
 566         search_mode mode = theGuiApp()->imageSearchMode();
 567         QString fn = toqstr(lyx::libFileSearch("images", "busy", "gif", mode).absFileName());
 568         QMovie * busyanim = new QMovie(fn, QByteArray(), busylabel);
 569         busylabel->setMovie(busyanim);
 570         busyanim->start();
 571         busylabel->hide();
 572
 573         connect(&d.processing_thread_watcher_, SIGNAL(started()),
 574                 busylabel, SLOT(show()));
 575         connect(&d.processing_thread_watcher_, SIGNAL(finished()),
 576                 busylabel, SLOT(hide()));
 577
 578         QFontMetrics const fm(statusBar()->fontMetrics());
 579         int const roheight = max(int(d.normalIconSize), fm.height());
 580         QSize const rosize(roheight, roheight);
 581         QPixmap readonly = QIcon(getPixmap("images/", "emblem-readonly", "svgz,png")).pixmap(rosize);
 582         read_only_ = new QLabel(statusBar());
 583         read_only_->setPixmap(readonly);
 584         read_only_->setScaledContents(true);
 585         read_only_->setAlignment(Qt::AlignCenter);
 586         read_only_->hide();
 587         statusBar()->addPermanentWidget(read_only_);
 588
 589         version_control_ = new QLabel(statusBar());
 590         version_control_->setAlignment(Qt::AlignCenter);
 591         version_control_->setFrameStyle(QFrame::StyledPanel);
 592         version_control_->hide();
 593         statusBar()->addPermanentWidget(version_control_);
 594
 595         statusBar()->setSizeGripEnabled(true);
 596         updateStatusBar();
 597
 598         connect(&d.autosave_watcher_, SIGNAL(finished()), this,
 599                 SLOT(autoSaveThreadFinished()));
 600
 601         connect(&d.processing_thread_watcher_, SIGNAL(started()), this,
 602                 SLOT(processingThreadStarted()));
 603         connect(&d.processing_thread_watcher_, SIGNAL(finished()), this,
 604                 SLOT(processingThreadFinished()));
 605
 606         connect(this, SIGNAL(triggerShowDialog(QString const &, QString const &, Inset *)),
 607                 SLOT(doShowDialog(QString const &, QString const &, Inset *)));
 608
 609         // set custom application bars context menu, e.g. tool bar and menu bar
 610         setContextMenuPolicy(Qt::CustomContextMenu);
 611         connect(this, SIGNAL(customContextMenuRequested(const QPoint &)),
 612                 SLOT(toolBarPopup(const QPoint &)));
 613
 614         // Forbid too small unresizable window because it can happen
 615         // with some window manager under X11.
 616         setMinimumSize(300, 200);
 617
 618         if (lyxrc.allow_geometry_session) {
 619                 // Now take care of session management.
 620                 if (restoreLayout())
 621                         return;
 622         }
 623
 624         // no session handling, default to a sane size.
 625         setGeometry(50, 50, 690, 510);
 626         initToolbars();
 627
 628         // clear session data if any.
 629         QSettings settings;
 630         settings.remove("views");
 631 }
 632
 633
 634 GuiView::~GuiView()
 635 {
 636         delete &d;
 637 }
 638
 639
 640 QVector<GuiWorkArea*> GuiView::GuiViewPrivate::guiWorkAreas()
 641 {
 642         QVector<GuiWorkArea*> areas;
 643         for (int i = 0; i < tabWorkAreaCount(); i++) {
 644                 TabWorkArea* ta = tabWorkArea(i);
 645                 for (int u = 0; u < ta->count(); u++) {
 646                         areas << ta->workArea(u);
 647                 }
 648         }
 649         return areas;
 650 }
 651
 652 static void handleExportStatus(GuiView * view, Buffer::ExportStatus status,
 653         string const & format)
 654 {
 655         docstring const fmt = formats.prettyName(format);
 656         docstring msg;
 657         switch (status) {
 658         case Buffer::ExportSuccess:
 659                 msg = bformat(_("Successful export to format: %1$s"), fmt);
 660                 break;
 661         case Buffer::ExportCancel:
 662                 msg = _("Document export cancelled.");
 663                 break;
 664         case Buffer::ExportError:
 665         case Buffer::ExportNoPathToFormat:
 666         case Buffer::ExportTexPathHasSpaces:
 667         case Buffer::ExportConverterError:
 668                 msg = bformat(_("Error while exporting format: %1$s"), fmt);
 669                 break;
 670         case Buffer::PreviewSuccess:
 671                 msg = bformat(_("Successful preview of format: %1$s"), fmt);
 672                 break;
 673         case Buffer::PreviewError:
 674                 msg = bformat(_("Error while previewing format: %1$s"), fmt);
 675                 break;
 676         }
 677         view->message(msg);
 678 }
 679
 680
 681 void GuiView::processingThreadStarted()
 682 {
 683 }
 684
 685
 686 void GuiView::processingThreadFinished()
 687 {
 688         QFutureWatcher<Buffer::ExportStatus> const * watcher =
 689                 static_cast<QFutureWatcher<Buffer::ExportStatus> const *>(sender());
 690
 691         Buffer::ExportStatus const status = watcher->result();
 692         handleExportStatus(this, status, d.processing_format);
 693
 694         updateToolbars();
 695         BufferView const * const bv = currentBufferView();
 696         if (bv && !bv->buffer().errorList("Export").empty()) {
 697                 errors("Export");
 698                 return;
 699         }
 700         errors(d.last_export_format);
 701 }
 702
 703
 704 void GuiView::autoSaveThreadFinished()
 705 {
 706         QFutureWatcher<docstring> const * watcher =
 707                 static_cast<QFutureWatcher<docstring> const *>(sender());
 708         message(watcher->result());
 709         updateToolbars();
 710 }
 711
 712
 713 void GuiView::saveLayout() const
 714 {
 715         QSettings settings;
 716         settings.beginGroup("views");
 717         settings.beginGroup(QString::number(id_));
 718 #if defined(Q_WS_X11) || defined(QPA_XCB)
 719         settings.setValue("pos", pos());
 720         settings.setValue("size", size());
 721 #else
 722         settings.setValue("geometry", saveGeometry());
 723 #endif
 724         settings.setValue("layout", saveState(0));
 725         settings.setValue("icon_size", toqstr(d.iconSize(iconSize())));
 726 }
 727
 728
 729 void GuiView::saveUISettings() const
 730 {
 731         // Save the toolbar private states
 732         ToolbarMap::iterator end = d.toolbars_.end();
 733         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
 734                 it->second->saveSession();
 735         // Now take care of all other dialogs
 736         map<string, DialogPtr>::const_iterator it = d.dialogs_.begin();
 737         for (; it!= d.dialogs_.end(); ++it)
 738                 it->second->saveSession();
 739 }
 740
 741
 742 bool GuiView::restoreLayout()
 743 {
 744         QSettings settings;
 745         settings.beginGroup("views");
 746         settings.beginGroup(QString::number(id_));
 747         QString const icon_key = "icon_size";
 748         if (!settings.contains(icon_key))
 749                 return false;
 750
 751         //code below is skipped when when ~/.config/LyX is (re)created
 752         setIconSize(d.iconSize(settings.value(icon_key).toString()));
 753
 754 #if defined(Q_WS_X11) || defined(QPA_XCB)
 755         QPoint pos = settings.value("pos", QPoint(50, 50)).toPoint();
 756         QSize size = settings.value("size", QSize(690, 510)).toSize();
 757         resize(size);
 758         move(pos);
 759 #else
 760         // Work-around for bug #6034: the window ends up in an undetermined
 761         // state when trying to restore a maximized window when it is
 762         // already maximized.
 763         if (!(windowState() & Qt::WindowMaximized))
 764                 if (!restoreGeometry(settings.value("geometry").toByteArray()))
 765                         setGeometry(50, 50, 690, 510);
 766 #endif
 767         // Make sure layout is correctly oriented.
 768         setLayoutDirection(qApp->layoutDirection());
 769
 770         // Allow the toc and view-source dock widget to be restored if needed.
 771         Dialog * dialog;
 772         if ((dialog = findOrBuild("toc", true)))
 773                 // see bug 5082. At least setup title and enabled state.
 774                 // Visibility will be adjusted by restoreState below.
 775                 dialog->prepareView();
 776         if ((dialog = findOrBuild("view-source", true)))
 777                 dialog->prepareView();
 778         if ((dialog = findOrBuild("progress", true)))
 779                 dialog->prepareView();
 780
 781         if (!restoreState(settings.value("layout").toByteArray(), 0))
 782                 initToolbars();
 783
 784         // init the toolbars that have not been restored
 785         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 786         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 787         for (; cit != end; ++cit) {
 788                 GuiToolbar * tb = toolbar(cit->name);
 789                 if (tb && !tb->isRestored())
 790                         initToolbar(cit->name);
 791         }
 792
 793         updateDialogs();
 794         return true;
 795 }
 796
 797
 798 GuiToolbar * GuiView::toolbar(string const & name)
 799 {
 800         ToolbarMap::iterator it = d.toolbars_.find(name);
 801         if (it != d.toolbars_.end())
 802                 return it->second;
 803
 804         LYXERR(Debug::GUI, "Toolbar::display: no toolbar named " << name);
 805         return 0;
 806 }
 807
 808
 809 void GuiView::constructToolbars()
 810 {
 811         ToolbarMap::iterator it = d.toolbars_.begin();
 812         for (; it != d.toolbars_.end(); ++it)
 813                 delete it->second;
 814         d.toolbars_.clear();
 815
 816         // I don't like doing this here, but the standard toolbar
 817         // destroys this object when it's destroyed itself (vfr)
 818         d.layout_ = new LayoutBox(*this);
 819         d.stack_widget_->addWidget(d.layout_);
 820         d.layout_->move(0,0);
 821
 822         // extracts the toolbars from the backend
 823         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 824         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 825         for (; cit != end; ++cit)
 826                 d.toolbars_[cit->name] =  new GuiToolbar(*cit, *this);
 827 }
 828
 829
 830 void GuiView::initToolbars()
 831 {
 832         // extracts the toolbars from the backend
 833         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 834         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 835         for (; cit != end; ++cit)
 836                 initToolbar(cit->name);
 837 }
 838
 839
 840 void GuiView::initToolbar(string const & name)
 841 {
 842         GuiToolbar * tb = toolbar(name);
 843         if (!tb)
 844                 return;
 845         int const visibility = guiApp->toolbars().defaultVisibility(name);
 846         bool newline = !(visibility & Toolbars::SAMEROW);
 847         tb->setVisible(false);
 848         tb->setVisibility(visibility);
 849
 850         if (visibility & Toolbars::TOP) {
 851                 if (newline)
 852                         addToolBarBreak(Qt::TopToolBarArea);
 853                 addToolBar(Qt::TopToolBarArea, tb);
 854         }
 855
 856         if (visibility & Toolbars::BOTTOM) {
 857                 if (newline)
 858                         addToolBarBreak(Qt::BottomToolBarArea);
 859                 addToolBar(Qt::BottomToolBarArea, tb);
 860         }
 861
 862         if (visibility & Toolbars::LEFT) {
 863                 if (newline)
 864                         addToolBarBreak(Qt::LeftToolBarArea);
 865                 addToolBar(Qt::LeftToolBarArea, tb);
 866         }
 867
 868         if (visibility & Toolbars::RIGHT) {
 869                 if (newline)
 870                         addToolBarBreak(Qt::RightToolBarArea);
 871                 addToolBar(Qt::RightToolBarArea, tb);
 872         }
 873
 874         if (visibility & Toolbars::ON)
 875                 tb->setVisible(true);
 876 }
 877
 878
 879 TocModels & GuiView::tocModels()
 880 {
 881         return d.toc_models_;
 882 }
 883
 884
 885 void GuiView::setFocus()
 886 {
 887         LYXERR(Debug::DEBUG, "GuiView::setFocus()" << this);
 888         QMainWindow::setFocus();
 889 }
 890
 891
 892 bool GuiView::hasFocus() const
 893 {
 894         if (currentWorkArea())
 895                 return currentWorkArea()->hasFocus();
 896         if (currentMainWorkArea())
 897                 return currentMainWorkArea()->hasFocus();
 898         return d.bg_widget_->hasFocus();
 899 }
 900
 901
 902 void GuiView::focusInEvent(QFocusEvent * e)
 903 {
 904         LYXERR(Debug::DEBUG, "GuiView::focusInEvent()" << this);
 905         QMainWindow::focusInEvent(e);
 906         // Make sure guiApp points to the correct view.
 907         guiApp->setCurrentView(this);
 908         if (currentWorkArea())
 909                 currentWorkArea()->setFocus();
 910         else if (currentMainWorkArea())
 911                 currentMainWorkArea()->setFocus();
 912         else
 913                 d.bg_widget_->setFocus();
 914 }
 915
 916
 917 void GuiView::showEvent(QShowEvent * e)
 918 {
 919         LYXERR(Debug::GUI, "Passed Geometry "
 920                 << size().height() << "x" << size().width()
 921                 << "+" << pos().x() << "+" << pos().y());
 922
 923         if (d.splitter_->count() == 0)
 924                 // No work area, switch to the background widget.
 925                 d.setBackground();
 926
 927         updateToolbars();
 928         QMainWindow::showEvent(e);
 929 }
 930
 931
 932 bool GuiView::closeScheduled()
 933 {
 934         closing_ = true;
 935         return close();
 936 }
 937
 938
 939 bool GuiView::prepareAllBuffersForLogout()
 940 {
 941         Buffer * first = theBufferList().first();
 942         if (!first)
 943                 return true;
 944
 945         // First, iterate over all buffers and ask the users if unsaved
 946         // changes should be saved.
 947         // We cannot use a for loop as the buffer list cycles.
 948         Buffer * b = first;
 949         do {
 950                 if (!saveBufferIfNeeded(const_cast<Buffer &>(*b), false))
 951                         return false;
 952                 b = theBufferList().next(b);
 953         } while (b != first);
 954
 955         // Next, save session state
 956         // When a view/window was closed before without quitting LyX, there
 957         // are already entries in the lastOpened list.
 958         theSession().lastOpened().clear();
 959         writeSession();
 960
 961         return true;
 962 }
 963
 964
 965 /** Destroy only all tabbed WorkAreas. Destruction of other WorkAreas
 966  ** is responsibility of the container (e.g., dialog)
 967  **/
 968 void GuiView::closeEvent(QCloseEvent * close_event)
 969 {
 970         LYXERR(Debug::DEBUG, "GuiView::closeEvent()");
 971
 972         if (!GuiViewPrivate::busyBuffers.isEmpty()) {
 973                 Alert::warning(_("Exit LyX"),
 974                         _("LyX could not be closed because documents are being processed by LyX."));
 975                 close_event->setAccepted(false);
 976                 return;
 977         }
 978
 979         // If the user pressed the x (so we didn't call closeView
 980         // programmatically), we want to clear all existing entries.
 981         if (!closing_)
 982                 theSession().lastOpened().clear();
 983         closing_ = true;
 984
 985         writeSession();
 986
 987         // it can happen that this event arrives without selecting the view,
 988         // e.g. when clicking the close button on a background window.
 989         setFocus();
 990         if (!closeWorkAreaAll()) {
 991                 closing_ = false;
 992                 close_event->ignore();
 993                 return;
 994         }
 995
 996         // Make sure that nothing will use this to be closed View.
 997         guiApp->unregisterView(this);
 998
 999         if (isFullScreen()) {
1000                 // Switch off fullscreen before closing.
1001                 toggleFullScreen();
1002                 updateDialogs();
1003         }
1004
1005         // Make sure the timer time out will not trigger a statusbar update.
1006         d.statusbar_timer_.stop();
1007
1008         // Saving fullscreen requires additional tweaks in the toolbar code.
1009         // It wouldn't also work under linux natively.
1010         if (lyxrc.allow_geometry_session) {
1011                 saveLayout();
1012                 saveUISettings();
1013         }
1014
1015         close_event->accept();
1016 }
1017
1018
1019 void GuiView::dragEnterEvent(QDragEnterEvent * event)
1020 {
1021         if (event->mimeData()->hasUrls())
1022                 event->accept();
1023         /// \todo Ask lyx-devel is this is enough:
1024         /// if (event->mimeData()->hasFormat("text/plain"))
1025         ///     event->acceptProposedAction();
1026 }
1027
1028
1029 void GuiView::dropEvent(QDropEvent * event)
1030 {
1031         QList<QUrl> files = event->mimeData()->urls();
1032         if (files.isEmpty())
1033                 return;
1034
1035         LYXERR(Debug::GUI, "GuiView::dropEvent: got URLs!");
1036         for (int i = 0; i != files.size(); ++i) {
1037                 string const file = os::internal_path(fromqstr(
1038                         files.at(i).toLocalFile()));
1039                 if (file.empty())
1040                         continue;
1041
1042                 string const ext = support::getExtension(file);
1043                 vector<const Format *> found_formats;
1044
1045                 // Find all formats that have the correct extension.
1046                 vector<const Format *> const & import_formats
1047                         = theConverters().importableFormats();
1048                 vector<const Format *>::const_iterator it = import_formats.begin();
1049                 for (; it != import_formats.end(); ++it)
1050                         if ((*it)->hasExtension(ext))
1051                                 found_formats.push_back(*it);
1052
1053                 FuncRequest cmd;
1054                 if (found_formats.size() >= 1) {
1055                         if (found_formats.size() > 1) {
1056                                 //FIXME: show a dialog to choose the correct importable format
1057                                 LYXERR(Debug::FILES,
1058                                         "Multiple importable formats found, selecting first");
1059                         }
1060                         string const arg = found_formats[0]->name() + " " + file;
1061                         cmd = FuncRequest(LFUN_BUFFER_IMPORT, arg);
1062                 }
1063                 else {
1064                         //FIXME: do we have to explicitly check whether it's a lyx file?
1065                         LYXERR(Debug::FILES,
1066                                 "No formats found, trying to open it as a lyx file");
1067                         cmd = FuncRequest(LFUN_FILE_OPEN, file);
1068                 }
1069                 // add the functions to the queue
1070                 guiApp->addToFuncRequestQueue(cmd);
1071                 event->accept();
1072         }
1073         // now process the collected functions. We perform the events
1074         // asynchronously. This prevents potential problems in case the
1075         // BufferView is closed within an event.
1076         guiApp->processFuncRequestQueueAsync();
1077 }
1078
1079
1080 void GuiView::message(docstring const & str)
1081 {
1082         if (ForkedProcess::iAmAChild())
1083                 return;
1084
1085         // call is moved to GUI-thread by GuiProgress
1086         d.progress_->appendMessage(toqstr(str));
1087 }
1088
1089
1090 void GuiView::clearMessageText()
1091 {
1092         message(docstring());
1093 }
1094
1095
1096 void GuiView::updateStatusBarMessage(QString const & str)
1097 {
1098         statusBar()->showMessage(str);
1099         d.statusbar_timer_.stop();
1100         d.statusbar_timer_.start(3000);
1101 }
1102
1103
1104 void GuiView::clearMessage()
1105 {
1106         // FIXME: This code was introduced in r19643 to fix bug #4123. However,
1107         // the hasFocus function mostly returns false, even if the focus is on
1108         // a workarea in this view.
1109         //if (!hasFocus())
1110         //      return;
1111         showMessage();
1112         d.statusbar_timer_.stop();
1113 }
1114
1115
1116 void GuiView::updateWindowTitle(GuiWorkArea * wa)
1117 {
1118         if (wa != d.current_work_area_
1119                 || wa->bufferView().buffer().isInternal())
1120                 return;
1121         Buffer const & buf = wa->bufferView().buffer();
1122         // Set the windows title
1123         docstring title = buf.fileName().displayName(130) + from_ascii("[*]");
1124 #ifndef Q_WS_MAC
1125         title += from_ascii(" - LyX");
1126 #endif
1127         setWindowTitle(toqstr(title));
1128         // Sets the path for the window: this is used by OSX to
1129         // allow a context click on the title bar showing a menu
1130         // with the path up to the file
1131         setWindowFilePath(toqstr(buf.absFileName()));
1132         // Tell Qt whether the current document is changed
1133         setWindowModified(!buf.isClean());
1134
1135         if (buf.isReadonly())
1136                 read_only_->show();
1137         else
1138                 read_only_->hide();
1139
1140         if (buf.lyxvc().inUse()) {
1141                 version_control_->show();
1142                 version_control_->setText(toqstr(buf.lyxvc().vcstatus()));
1143         } else
1144                 version_control_->hide();
1145 }
1146
1147
1148 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
1149 {
1150         if (d.current_work_area_)
1151                 // disconnect the current work area from all slots
1152                 QObject::disconnect(d.current_work_area_, 0, this, 0);
1153         disconnectBuffer();
1154         disconnectBufferView();
1155         connectBufferView(wa->bufferView());
1156         connectBuffer(wa->bufferView().buffer());
1157         d.current_work_area_ = wa;
1158         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1159                          this, SLOT(updateWindowTitle(GuiWorkArea *)));
1160         QObject::connect(wa, SIGNAL(busy(bool)),
1161                          this, SLOT(setBusy(bool)));
1162         // connection of a signal to a signal
1163         QObject::connect(wa, SIGNAL(bufferViewChanged()),
1164                          this, SIGNAL(bufferViewChanged()));
1165         Q_EMIT updateWindowTitle(wa);
1166         Q_EMIT bufferViewChanged();
1167 }
1168
1169
1170 void GuiView::onBufferViewChanged()
1171 {
1172         structureChanged();
1173         // Buffer-dependent dialogs must be updated. This is done here because
1174         // some dialogs require buffer()->text.
1175         updateDialogs();
1176 }
1177
1178
1179 void GuiView::on_lastWorkAreaRemoved()
1180 {
1181         if (closing_)
1182                 // We already are in a close event. Nothing more to do.
1183                 return;
1184
1185         if (d.splitter_->count() > 1)
1186                 // We have a splitter so don't close anything.
1187                 return;
1188
1189         // Reset and updates the dialogs.
1190         Q_EMIT bufferViewChanged();
1191
1192         resetWindowTitle();
1193         updateStatusBar();
1194
1195         if (lyxrc.open_buffers_in_tabs)
1196                 // Nothing more to do, the window should stay open.
1197                 return;
1198
1199         if (guiApp->viewIds().size() > 1) {
1200                 close();
1201                 return;
1202         }
1203
1204 #ifdef Q_OS_MAC
1205         // On Mac we also close the last window because the application stay
1206         // resident in memory. On other platforms we don't close the last
1207         // window because this would quit the application.
1208         close();
1209 #endif
1210 }
1211
1212
1213 void GuiView::updateStatusBar()
1214 {
1215         // let the user see the explicit message
1216         if (d.statusbar_timer_.isActive())
1217                 return;
1218
1219         showMessage();
1220 }
1221
1222
1223 void GuiView::showMessage()
1224 {
1225         if (busy_)
1226                 return;
1227         QString msg = toqstr(theGuiApp()->viewStatusMessage());
1228         if (msg.isEmpty()) {
1229                 BufferView const * bv = currentBufferView();
1230                 if (bv)
1231                         msg = toqstr(bv->cursor().currentState());
1232                 else
1233                         msg = qt_("Welcome to LyX!");
1234         }
1235         statusBar()->showMessage(msg);
1236 }
1237
1238
1239 bool GuiView::event(QEvent * e)
1240 {
1241         switch (e->type())
1242         {
1243         // Useful debug code:
1244         //case QEvent::ActivationChange:
1245         //case QEvent::WindowDeactivate:
1246         //case QEvent::Paint:
1247         //case QEvent::Enter:
1248         //case QEvent::Leave:
1249         //case QEvent::HoverEnter:
1250         //case QEvent::HoverLeave:
1251         //case QEvent::HoverMove:
1252         //case QEvent::StatusTip:
1253         //case QEvent::DragEnter:
1254         //case QEvent::DragLeave:
1255         //case QEvent::Drop:
1256         //      break;
1257
1258         case QEvent::WindowActivate: {
1259                 GuiView * old_view = guiApp->currentView();
1260                 if (this == old_view) {
1261                         setFocus();
1262                         return QMainWindow::event(e);
1263                 }
1264                 if (old_view && old_view->currentBufferView()) {
1265                         // save current selection to the selection buffer to allow
1266                         // middle-button paste in this window.
1267                         cap::saveSelection(old_view->currentBufferView()->cursor());
1268                 }
1269                 guiApp->setCurrentView(this);
1270                 if (d.current_work_area_)
1271                         on_currentWorkAreaChanged(d.current_work_area_);
1272                 else
1273                         resetWindowTitle();
1274                 setFocus();
1275                 return QMainWindow::event(e);
1276         }
1277
1278         case QEvent::ShortcutOverride: {
1279                 // See bug 4888
1280                 if (isFullScreen() && menuBar()->isHidden()) {
1281                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
1282                         // FIXME: we should also try to detect special LyX shortcut such as
1283                         // Alt-P and Alt-M. Right now there is a hack in
1284                         // GuiWorkArea::processKeySym() that hides again the menubar for
1285                         // those cases.
1286                         if (ke->modifiers() & Qt::AltModifier && ke->key() != Qt::Key_Alt) {
1287                                 menuBar()->show();
1288                                 return QMainWindow::event(e);
1289                         }
1290                 }
1291                 return QMainWindow::event(e);
1292         }
1293
1294         default:
1295                 return QMainWindow::event(e);
1296         }
1297 }
1298
1299 void GuiView::resetWindowTitle()
1300 {
1301         setWindowTitle(qt_("LyX"));
1302 }
1303
1304 bool GuiView::focusNextPrevChild(bool /*next*/)
1305 {
1306         setFocus();
1307         return true;
1308 }
1309
1310
1311 bool GuiView::busy() const
1312 {
1313         return busy_ > 0;
1314 }
1315
1316
1317 void GuiView::setBusy(bool busy)
1318 {
1319         bool const busy_before = busy_ > 0;
1320         busy ? ++busy_ : --busy_;
1321         if ((busy_ > 0) == busy_before)
1322                 // busy state didn't change
1323                 return;
1324
1325         if (busy) {
1326                 QApplication::setOverrideCursor(Qt::WaitCursor);
1327                 return;
1328         }
1329         QApplication::restoreOverrideCursor();
1330         updateLayoutList();
1331 }
1332
1333
1334 void GuiView::resetCommandExecute()
1335 {
1336         command_execute_ = false;
1337         updateToolbars();
1338 }
1339
1340
1341 double GuiView::pixelRatio() const
1342 {
1343 #if QT_VERSION >= 0x050000
1344         return devicePixelRatio();
1345 #else
1346         return 1.0;
1347 #endif
1348 }
1349
1350
1351 GuiWorkArea * GuiView::workArea(int index)
1352 {
1353         if (TabWorkArea * twa = d.currentTabWorkArea())
1354                 if (index < twa->count())
1355                         return dynamic_cast<GuiWorkArea *>(twa->widget(index));
1356         return 0;
1357 }
1358
1359
1360 GuiWorkArea * GuiView::workArea(Buffer & buffer)
1361 {
1362         if (currentWorkArea()
1363                 && &currentWorkArea()->bufferView().buffer() == &buffer)
1364                 return currentWorkArea();
1365         if (TabWorkArea * twa = d.currentTabWorkArea())
1366                 return twa->workArea(buffer);
1367         return 0;
1368 }
1369
1370
1371 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
1372 {
1373         // Automatically create a TabWorkArea if there are none yet.
1374         TabWorkArea * tab_widget = d.splitter_->count()
1375                 ? d.currentTabWorkArea() : addTabWorkArea();
1376         return tab_widget->addWorkArea(buffer, *this);
1377 }
1378
1379
1380 TabWorkArea * GuiView::addTabWorkArea()
1381 {
1382         TabWorkArea * twa = new TabWorkArea;
1383         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
1384                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
1385         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
1386                          this, SLOT(on_lastWorkAreaRemoved()));
1387
1388         d.splitter_->addWidget(twa);
1389         d.stack_widget_->setCurrentWidget(d.splitter_);
1390         return twa;
1391 }
1392
1393
1394 GuiWorkArea const * GuiView::currentWorkArea() const
1395 {
1396         return d.current_work_area_;
1397 }
1398
1399
1400 GuiWorkArea * GuiView::currentWorkArea()
1401 {
1402         return d.current_work_area_;
1403 }
1404
1405
1406 GuiWorkArea const * GuiView::currentMainWorkArea() const
1407 {
1408         if (!d.currentTabWorkArea())
1409                 return 0;
1410         return d.currentTabWorkArea()->currentWorkArea();
1411 }
1412
1413
1414 GuiWorkArea * GuiView::currentMainWorkArea()
1415 {
1416         if (!d.currentTabWorkArea())
1417                 return 0;
1418         return d.currentTabWorkArea()->currentWorkArea();
1419 }
1420
1421
1422 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
1423 {
1424         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
1425         if (!wa) {
1426                 d.current_work_area_ = 0;
1427                 d.setBackground();
1428                 Q_EMIT bufferViewChanged();
1429                 return;
1430         }
1431
1432         // FIXME: I've no clue why this is here and why it accesses
1433         //  theGuiApp()->currentView, which might be 0 (bug 6464).
1434         //  See also 27525 (vfr).
1435         if (theGuiApp()->currentView() == this
1436                   && theGuiApp()->currentView()->currentWorkArea() == wa)
1437                 return;
1438
1439         if (currentBufferView())
1440                 cap::saveSelection(currentBufferView()->cursor());
1441
1442         theGuiApp()->setCurrentView(this);
1443         d.current_work_area_ = wa;
1444
1445         // We need to reset this now, because it will need to be
1446         // right if the tabWorkArea gets reset in the for loop. We
1447         // will change it back if we aren't in that case.
1448         GuiWorkArea * const old_cmwa = d.current_main_work_area_;
1449         d.current_main_work_area_ = wa;
1450
1451         for (int i = 0; i != d.splitter_->count(); ++i) {
1452                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
1453                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea()
1454                                 << ", Current main wa: " << currentMainWorkArea());
1455                         return;
1456                 }
1457         }
1458
1459         d.current_main_work_area_ = old_cmwa;
1460
1461         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
1462         on_currentWorkAreaChanged(wa);
1463         BufferView & bv = wa->bufferView();
1464         bv.cursor().fixIfBroken();
1465         bv.updateMetrics();
1466         wa->setUpdatesEnabled(true);
1467         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1468 }
1469
1470
1471 void GuiView::removeWorkArea(GuiWorkArea * wa)
1472 {
1473         LASSERT(wa, return);
1474         if (wa == d.current_work_area_) {
1475                 disconnectBuffer();
1476                 disconnectBufferView();
1477                 d.current_work_area_ = 0;
1478                 d.current_main_work_area_ = 0;
1479         }
1480
1481         bool found_twa = false;
1482         for (int i = 0; i != d.splitter_->count(); ++i) {
1483                 TabWorkArea * twa = d.tabWorkArea(i);
1484                 if (twa->removeWorkArea(wa)) {
1485                         // Found in this tab group, and deleted the GuiWorkArea.
1486                         found_twa = true;
1487                         if (twa->count() != 0) {
1488                                 if (d.current_work_area_ == 0)
1489                                         // This means that we are closing the current GuiWorkArea, so
1490                                         // switch to the next GuiWorkArea in the found TabWorkArea.
1491                                         setCurrentWorkArea(twa->currentWorkArea());
1492                         } else {
1493                                 // No more WorkAreas in this tab group, so delete it.
1494                                 delete twa;
1495                         }
1496                         break;
1497                 }
1498         }
1499
1500         // It is not a tabbed work area (i.e., the search work area), so it
1501         // should be deleted by other means.
1502         LASSERT(found_twa, return);
1503
1504         if (d.current_work_area_ == 0) {
1505                 if (d.splitter_->count() != 0) {
1506                         TabWorkArea * twa = d.currentTabWorkArea();
1507                         setCurrentWorkArea(twa->currentWorkArea());
1508                 } else {
1509                         // No more work areas, switch to the background widget.
1510                         setCurrentWorkArea(0);
1511                 }
1512         }
1513 }
1514
1515
1516 LayoutBox * GuiView::getLayoutDialog() const
1517 {
1518         return d.layout_;
1519 }
1520
1521
1522 void GuiView::updateLayoutList()
1523 {
1524         if (d.layout_)
1525                 d.layout_->updateContents(false);
1526 }
1527
1528
1529 void GuiView::updateToolbars()
1530 {
1531         ToolbarMap::iterator end = d.toolbars_.end();
1532         if (d.current_work_area_) {
1533                 int context = 0;
1534                 if (d.current_work_area_->bufferView().cursor().inMathed()
1535                         && !d.current_work_area_->bufferView().cursor().inRegexped())
1536                         context |= Toolbars::MATH;
1537                 if (lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled())
1538                         context |= Toolbars::TABLE;
1539                 if (currentBufferView()->buffer().areChangesPresent()
1540                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled()
1541                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onOff(true))
1542                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).enabled()
1543                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).onOff(true)))
1544                         context |= Toolbars::REVIEW;
1545                 if (lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled())
1546                         context |= Toolbars::MATHMACROTEMPLATE;
1547                 if (lyx::getStatus(FuncRequest(LFUN_IN_IPA)).enabled())
1548                         context |= Toolbars::IPA;
1549                 if (command_execute_)
1550                         context |= Toolbars::MINIBUFFER;
1551                 if (minibuffer_focus_) {
1552                         context |= Toolbars::MINIBUFFER_FOCUS;
1553                         minibuffer_focus_ = false;
1554                 }
1555
1556                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1557                         it->second->update(context);
1558         } else
1559                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1560                         it->second->update();
1561 }
1562
1563
1564 void GuiView::setBuffer(Buffer * newBuffer)
1565 {
1566         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << endl);
1567         LASSERT(newBuffer, return);
1568
1569         GuiWorkArea * wa = workArea(*newBuffer);
1570         if (wa == 0) {
1571                 setBusy(true);
1572                 newBuffer->masterBuffer()->updateBuffer();
1573                 setBusy(false);
1574                 wa = addWorkArea(*newBuffer);
1575                 // scroll to the position when the BufferView was last closed
1576                 if (lyxrc.use_lastfilepos) {
1577                         LastFilePosSection::FilePos filepos =
1578                                 theSession().lastFilePos().load(newBuffer->fileName());
1579                         wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1580                 }
1581         } else {
1582                 //Disconnect the old buffer...there's no new one.
1583                 disconnectBuffer();
1584         }
1585         connectBuffer(*newBuffer);
1586         connectBufferView(wa->bufferView());
1587         setCurrentWorkArea(wa);
1588 }
1589
1590
1591 void GuiView::connectBuffer(Buffer & buf)
1592 {
1593         buf.setGuiDelegate(this);
1594 }
1595
1596
1597 void GuiView::disconnectBuffer()
1598 {
1599         if (d.current_work_area_)
1600                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1601 }
1602
1603
1604 void GuiView::connectBufferView(BufferView & bv)
1605 {
1606         bv.setGuiDelegate(this);
1607 }
1608
1609
1610 void GuiView::disconnectBufferView()
1611 {
1612         if (d.current_work_area_)
1613                 d.current_work_area_->bufferView().setGuiDelegate(0);
1614 }
1615
1616
1617 void GuiView::errors(string const & error_type, bool from_master)
1618 {
1619         BufferView const * const bv = currentBufferView();
1620         if (!bv)
1621                 return;
1622
1623 #if EXPORT_in_THREAD
1624         // We are called with from_master == false by default, so we
1625         // have to figure out whether that is the case or not.
1626         ErrorList & el = bv->buffer().errorList(error_type);
1627         if (el.empty()) {
1628             el = bv->buffer().masterBuffer()->errorList(error_type);
1629             from_master = true;
1630         }
1631 #else
1632         ErrorList const & el = from_master ?
1633                 bv->buffer().masterBuffer()->errorList(error_type) :
1634                 bv->buffer().errorList(error_type);
1635 #endif
1636
1637         if (el.empty())
1638                 return;
1639
1640         string data = error_type;
1641         if (from_master)
1642                 data = "from_master|" + error_type;
1643         showDialog("errorlist", data);
1644 }
1645
1646
1647 void GuiView::updateTocItem(string const & type, DocIterator const & dit)
1648 {
1649         d.toc_models_.updateItem(toqstr(type), dit);
1650 }
1651
1652
1653 void GuiView::structureChanged()
1654 {
1655         // This is called from the Buffer, which has no way to ensure that cursors
1656         // in BufferView remain valid.
1657         if (documentBufferView())
1658                 documentBufferView()->cursor().sanitize();
1659         // FIXME: This is slightly expensive, though less than the tocBackend update
1660         // (#9880). This also resets the view in the Toc Widget (#6675).
1661         d.toc_models_.reset(documentBufferView());
1662         // Navigator needs more than a simple update in this case. It needs to be
1663         // rebuilt.
1664         updateDialog("toc", "");
1665 }
1666
1667
1668 void GuiView::updateDialog(string const & name, string const & data)
1669 {
1670         if (!isDialogVisible(name))
1671                 return;
1672
1673         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1674         if (it == d.dialogs_.end())
1675                 return;
1676
1677         Dialog * const dialog = it->second.get();
1678         if (dialog->isVisibleView())
1679                 dialog->initialiseParams(data);
1680 }
1681
1682
1683 BufferView * GuiView::documentBufferView()
1684 {
1685         return currentMainWorkArea()
1686                 ? &currentMainWorkArea()->bufferView()
1687                 : 0;
1688 }
1689
1690
1691 BufferView const * GuiView::documentBufferView() const
1692 {
1693         return currentMainWorkArea()
1694                 ? &currentMainWorkArea()->bufferView()
1695                 : 0;
1696 }
1697
1698
1699 BufferView * GuiView::currentBufferView()
1700 {
1701         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1702 }
1703
1704
1705 BufferView const * GuiView::currentBufferView() const
1706 {
1707         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1708 }
1709
1710
1711 docstring GuiView::GuiViewPrivate::autosaveAndDestroy(
1712         Buffer const * orig, Buffer * clone)
1713 {
1714         bool const success = clone->autoSave();
1715         delete clone;
1716         busyBuffers.remove(orig);
1717         return success
1718                 ? _("Automatic save done.")
1719                 : _("Automatic save failed!");
1720 }
1721
1722
1723 void GuiView::autoSave()
1724 {
1725         LYXERR(Debug::INFO, "Running autoSave()");
1726
1727         Buffer * buffer = documentBufferView()
1728                 ? &documentBufferView()->buffer() : 0;
1729         if (!buffer) {
1730                 resetAutosaveTimers();
1731                 return;
1732         }
1733
1734         GuiViewPrivate::busyBuffers.insert(buffer);
1735         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::autosaveAndDestroy,
1736                 buffer, buffer->cloneBufferOnly());
1737         d.autosave_watcher_.setFuture(f);
1738         resetAutosaveTimers();
1739 }
1740
1741
1742 void GuiView::resetAutosaveTimers()
1743 {
1744         if (lyxrc.autosave)
1745                 d.autosave_timeout_.restart();
1746 }
1747
1748
1749 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1750 {
1751         bool enable = true;
1752         Buffer * buf = currentBufferView()
1753                 ? &currentBufferView()->buffer() : 0;
1754         Buffer * doc_buffer = documentBufferView()
1755                 ? &(documentBufferView()->buffer()) : 0;
1756
1757 #ifdef Q_OS_MAC
1758         /* In LyX/Mac, when a dialog is open, the menus of the
1759            application can still be accessed without giving focus to
1760            the main window. In this case, we want to disable the menu
1761            entries that are buffer-related.
1762            This code must not be used on Linux and Windows, since it
1763            would disable buffer-related entries when hovering over the
1764            menu (see bug #9574).
1765          */
1766         if (cmd.origin() == FuncRequest::MENU && !hasFocus()) {
1767                 buf = 0;
1768                 doc_buffer = 0;
1769         }
1770 #endif
1771
1772         // Check whether we need a buffer
1773         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
1774                 // no, exit directly
1775                 flag.message(from_utf8(N_("Command not allowed with"
1776                                         "out any document open")));
1777                 flag.setEnabled(false);
1778                 return true;
1779         }
1780
1781         if (cmd.origin() == FuncRequest::TOC) {
1782                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1783                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
1784                         flag.setEnabled(false);
1785                 return true;
1786         }
1787
1788         switch(cmd.action()) {
1789         case LFUN_BUFFER_IMPORT:
1790                 break;
1791
1792         case LFUN_MASTER_BUFFER_UPDATE:
1793         case LFUN_MASTER_BUFFER_VIEW:
1794                 enable = doc_buffer
1795                         && (doc_buffer->parent() != 0
1796                             || doc_buffer->hasChildren())
1797                         && !d.processing_thread_watcher_.isRunning();
1798                 break;
1799
1800         case LFUN_BUFFER_UPDATE:
1801         case LFUN_BUFFER_VIEW: {
1802                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
1803                         enable = false;
1804                         break;
1805                 }
1806                 string format = to_utf8(cmd.argument());
1807                 if (cmd.argument().empty())
1808                         format = doc_buffer->params().getDefaultOutputFormat();
1809                 enable = doc_buffer->params().isExportable(format, true);
1810                 break;
1811         }
1812
1813         case LFUN_BUFFER_RELOAD:
1814                 enable = doc_buffer && !doc_buffer->isUnnamed()
1815                         && doc_buffer->fileName().exists()
1816                         && (!doc_buffer->isClean()
1817                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1818                 break;
1819
1820         case LFUN_BUFFER_CHILD_OPEN:
1821                 enable = doc_buffer != 0;
1822                 break;
1823
1824         case LFUN_BUFFER_WRITE:
1825                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1826                 break;
1827
1828         //FIXME: This LFUN should be moved to GuiApplication.
1829         case LFUN_BUFFER_WRITE_ALL: {
1830                 // We enable the command only if there are some modified buffers
1831                 Buffer * first = theBufferList().first();
1832                 enable = false;
1833                 if (!first)
1834                         break;
1835                 Buffer * b = first;
1836                 // We cannot use a for loop as the buffer list is a cycle.
1837                 do {
1838                         if (!b->isClean()) {
1839                                 enable = true;
1840                                 break;
1841                         }
1842                         b = theBufferList().next(b);
1843                 } while (b != first);
1844                 break;
1845         }
1846
1847         case LFUN_BUFFER_WRITE_AS:
1848         case LFUN_BUFFER_EXPORT_AS:
1849                 enable = doc_buffer != 0;
1850                 break;
1851
1852         case LFUN_BUFFER_CLOSE:
1853         case LFUN_VIEW_CLOSE:
1854                 enable = doc_buffer != 0;
1855                 break;
1856
1857         case LFUN_BUFFER_CLOSE_ALL:
1858                 enable = theBufferList().last() != theBufferList().first();
1859                 break;
1860
1861         case LFUN_VIEW_SPLIT:
1862                 if (cmd.getArg(0) == "vertical")
1863                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1864                                          d.splitter_->orientation() == Qt::Vertical);
1865                 else
1866                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1867                                          d.splitter_->orientation() == Qt::Horizontal);
1868                 break;
1869
1870         case LFUN_TAB_GROUP_CLOSE:
1871                 enable = d.tabWorkAreaCount() > 1;
1872                 break;
1873
1874         case LFUN_TOOLBAR_TOGGLE: {
1875                 string const name = cmd.getArg(0);
1876                 if (GuiToolbar * t = toolbar(name))
1877                         flag.setOnOff(t->isVisible());
1878                 else {
1879                         enable = false;
1880                         docstring const msg =
1881                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
1882                         flag.message(msg);
1883                 }
1884                 break;
1885         }
1886
1887         case LFUN_ICON_SIZE:
1888                 flag.setOnOff(d.iconSize(cmd.argument()) == iconSize());
1889                 break;
1890
1891         case LFUN_DROP_LAYOUTS_CHOICE:
1892                 enable = buf != 0;
1893                 break;
1894
1895         case LFUN_UI_TOGGLE:
1896                 flag.setOnOff(isFullScreen());
1897                 break;
1898
1899         case LFUN_DIALOG_DISCONNECT_INSET:
1900                 break;
1901
1902         case LFUN_DIALOG_HIDE:
1903                 // FIXME: should we check if the dialog is shown?
1904                 break;
1905
1906         case LFUN_DIALOG_TOGGLE:
1907                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1908                 // fall through to set "enable"
1909         case LFUN_DIALOG_SHOW: {
1910                 string const name = cmd.getArg(0);
1911                 if (!doc_buffer)
1912                         enable = name == "aboutlyx"
1913                                 || name == "file" //FIXME: should be removed.
1914                                 || name == "prefs"
1915                                 || name == "texinfo"
1916                                 || name == "progress"
1917                                 || name == "compare";
1918                 else if (name == "character" || name == "symbols"
1919                         || name == "mathdelimiter" || name == "mathmatrix") {
1920                         if (!buf || buf->isReadonly())
1921                                 enable = false;
1922                         else {
1923                                 Cursor const & cur = currentBufferView()->cursor();
1924                                 enable = !(cur.inTexted() && cur.paragraph().isPassThru());
1925                         }
1926                 }
1927                 else if (name == "latexlog")
1928                         enable = FileName(doc_buffer->logName()).isReadableFile();
1929                 else if (name == "spellchecker")
1930                         enable = theSpellChecker()
1931                                 && !doc_buffer->isReadonly()
1932                                 && !doc_buffer->text().empty();
1933                 else if (name == "vclog")
1934                         enable = doc_buffer->lyxvc().inUse();
1935                 break;
1936         }
1937
1938         case LFUN_DIALOG_UPDATE: {
1939                 string const name = cmd.getArg(0);
1940                 if (!buf)
1941                         enable = name == "prefs";
1942                 break;
1943         }
1944
1945         case LFUN_COMMAND_EXECUTE:
1946         case LFUN_MESSAGE:
1947         case LFUN_MENU_OPEN:
1948                 // Nothing to check.
1949                 break;
1950
1951         case LFUN_COMPLETION_INLINE:
1952                 if (!d.current_work_area_
1953                         || !d.current_work_area_->completer().inlinePossible(
1954                         currentBufferView()->cursor()))
1955                         enable = false;
1956                 break;
1957
1958         case LFUN_COMPLETION_POPUP:
1959                 if (!d.current_work_area_
1960                         || !d.current_work_area_->completer().popupPossible(
1961                         currentBufferView()->cursor()))
1962                         enable = false;
1963                 break;
1964
1965         case LFUN_COMPLETE:
1966                 if (!d.current_work_area_
1967                         || !d.current_work_area_->completer().inlinePossible(
1968                         currentBufferView()->cursor()))
1969                         enable = false;
1970                 break;
1971
1972         case LFUN_COMPLETION_ACCEPT:
1973                 if (!d.current_work_area_
1974                         || (!d.current_work_area_->completer().popupVisible()
1975                         && !d.current_work_area_->completer().inlineVisible()
1976                         && !d.current_work_area_->completer().completionAvailable()))
1977                         enable = false;
1978                 break;
1979
1980         case LFUN_COMPLETION_CANCEL:
1981                 if (!d.current_work_area_
1982                         || (!d.current_work_area_->completer().popupVisible()
1983                         && !d.current_work_area_->completer().inlineVisible()))
1984                         enable = false;
1985                 break;
1986
1987         case LFUN_BUFFER_ZOOM_OUT:
1988         case LFUN_BUFFER_ZOOM_IN: {
1989                 // only diff between these two is that the default for ZOOM_OUT
1990                 // is a neg. number
1991                 bool const neg_zoom =
1992                         convert<int>(cmd.argument()) < 0 ||
1993                         (cmd.action() == LFUN_BUFFER_ZOOM_OUT && cmd.argument().empty());
1994                 if (lyxrc.zoom <= zoom_min_ && neg_zoom) {
1995                         docstring const msg =
1996                                 bformat(_("Zoom level cannot be less than %1$d%."), zoom_min_);
1997                         flag.message(msg);
1998                         enable = false;
1999                 } else
2000                         enable = doc_buffer;
2001                 break;
2002         }
2003         case LFUN_BUFFER_MOVE_NEXT:
2004         case LFUN_BUFFER_MOVE_PREVIOUS:
2005                 // we do not cycle when moving
2006         case LFUN_BUFFER_NEXT:
2007         case LFUN_BUFFER_PREVIOUS:
2008                 // because we cycle, it doesn't matter whether on first or last
2009                 enable = (d.currentTabWorkArea()->count() > 1);
2010                 break;
2011         case LFUN_BUFFER_SWITCH:
2012                 // toggle on the current buffer, but do not toggle off
2013                 // the other ones (is that a good idea?)
2014                 if (doc_buffer
2015                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
2016                         flag.setOnOff(true);
2017                 break;
2018
2019         case LFUN_VC_REGISTER:
2020                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
2021                 break;
2022         case LFUN_VC_RENAME:
2023                 enable = doc_buffer && doc_buffer->lyxvc().renameEnabled();
2024                 break;
2025         case LFUN_VC_COPY:
2026                 enable = doc_buffer && doc_buffer->lyxvc().copyEnabled();
2027                 break;
2028         case LFUN_VC_CHECK_IN:
2029                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
2030                 break;
2031         case LFUN_VC_CHECK_OUT:
2032                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
2033                 break;
2034         case LFUN_VC_LOCKING_TOGGLE:
2035                 enable = doc_buffer && !doc_buffer->isReadonly()
2036                         && doc_buffer->lyxvc().lockingToggleEnabled();
2037                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
2038                 break;
2039         case LFUN_VC_REVERT:
2040                 enable = doc_buffer && doc_buffer->lyxvc().inUse() && !doc_buffer->isReadonly();
2041                 break;
2042         case LFUN_VC_UNDO_LAST:
2043                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
2044                 break;
2045         case LFUN_VC_REPO_UPDATE:
2046                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
2047                 break;
2048         case LFUN_VC_COMMAND: {
2049                 if (cmd.argument().empty())
2050                         enable = false;
2051                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
2052                         enable = false;
2053                 break;
2054         }
2055         case LFUN_VC_COMPARE:
2056                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
2057                 break;
2058
2059         case LFUN_SERVER_GOTO_FILE_ROW:
2060         case LFUN_LYX_ACTIVATE:
2061                 break;
2062         case LFUN_FORWARD_SEARCH:
2063                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty());
2064                 break;
2065
2066         case LFUN_FILE_INSERT_PLAINTEXT:
2067         case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2068                 enable = documentBufferView() && documentBufferView()->cursor().inTexted();
2069                 break;
2070
2071         case LFUN_SPELLING_CONTINUOUSLY:
2072                 flag.setOnOff(lyxrc.spellcheck_continuously);
2073                 break;
2074
2075         default:
2076                 return false;
2077         }
2078
2079         if (!enable)
2080                 flag.setEnabled(false);
2081
2082         return true;
2083 }
2084
2085
2086 static FileName selectTemplateFile()
2087 {
2088         FileDialog dlg(qt_("Select template file"));
2089         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2090         dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2091
2092         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
2093                                  QStringList(qt_("LyX Documents (*.lyx)")));
2094
2095         if (result.first == FileDialog::Later)
2096                 return FileName();
2097         if (result.second.isEmpty())
2098                 return FileName();
2099         return FileName(fromqstr(result.second));
2100 }
2101
2102
2103 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
2104 {
2105         setBusy(true);
2106
2107         Buffer * newBuffer = 0;
2108         try {
2109                 newBuffer = checkAndLoadLyXFile(filename);
2110         } catch (ExceptionMessage const & e) {
2111                 setBusy(false);
2112                 throw(e);
2113         }
2114         setBusy(false);
2115
2116         if (!newBuffer) {
2117                 message(_("Document not loaded."));
2118                 return 0;
2119         }
2120
2121         setBuffer(newBuffer);
2122         newBuffer->errors("Parse");
2123
2124         if (tolastfiles)
2125                 theSession().lastFiles().add(filename);
2126
2127         return newBuffer;
2128 }
2129
2130
2131 void GuiView::openDocument(string const & fname)
2132 {
2133         string initpath = lyxrc.document_path;
2134
2135         if (documentBufferView()) {
2136                 string const trypath = documentBufferView()->buffer().filePath();
2137                 // If directory is writeable, use this as default.
2138                 if (FileName(trypath).isDirWritable())
2139                         initpath = trypath;
2140         }
2141
2142         string filename;
2143
2144         if (fname.empty()) {
2145                 FileDialog dlg(qt_("Select document to open"));
2146                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2147                 dlg.setButton2(qt_("Examples|#E#e"),
2148                                 toqstr(addPath(package().system_support().absFileName(), "examples")));
2149
2150                 QStringList const filter(qt_("LyX Documents (*.lyx)"));
2151                 FileDialog::Result result =
2152                         dlg.open(toqstr(initpath), filter);
2153
2154                 if (result.first == FileDialog::Later)
2155                         return;
2156
2157                 filename = fromqstr(result.second);
2158
2159                 // check selected filename
2160                 if (filename.empty()) {
2161                         message(_("Canceled."));
2162                         return;
2163                 }
2164         } else
2165                 filename = fname;
2166
2167         // get absolute path of file and add ".lyx" to the filename if
2168         // necessary.
2169         FileName const fullname =
2170                         fileSearch(string(), filename, "lyx", support::may_not_exist);
2171         if (!fullname.empty())
2172                 filename = fullname.absFileName();
2173
2174         if (!fullname.onlyPath().isDirectory()) {
2175                 Alert::warning(_("Invalid filename"),
2176                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
2177                                 from_utf8(fullname.absFileName())));
2178                 return;
2179         }
2180
2181         // if the file doesn't exist and isn't already open (bug 6645),
2182         // let the user create one
2183         if (!fullname.exists() && !theBufferList().exists(fullname) &&
2184             !LyXVC::file_not_found_hook(fullname)) {
2185                 // the user specifically chose this name. Believe him.
2186                 Buffer * const b = newFile(filename, string(), true);
2187                 if (b)
2188                         setBuffer(b);
2189                 return;
2190         }
2191
2192         docstring const disp_fn = makeDisplayPath(filename);
2193         message(bformat(_("Opening document %1$s..."), disp_fn));
2194
2195         docstring str2;
2196         Buffer * buf = loadDocument(fullname);
2197         if (buf) {
2198                 str2 = bformat(_("Document %1$s opened."), disp_fn);
2199                 if (buf->lyxvc().inUse())
2200                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
2201                                 " " + _("Version control detected.");
2202         } else {
2203                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
2204         }
2205         message(str2);
2206 }
2207
2208 // FIXME: clean that
2209 static bool import(GuiView * lv, FileName const & filename,
2210         string const & format, ErrorList & errorList)
2211 {
2212         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
2213
2214         string loader_format;
2215         vector<string> loaders = theConverters().loaders();
2216         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
2217                 vector<string>::const_iterator it = loaders.begin();
2218                 vector<string>::const_iterator en = loaders.end();
2219                 for (; it != en; ++it) {
2220                         if (!theConverters().isReachable(format, *it))
2221                                 continue;
2222
2223                         string const tofile =
2224                                 support::changeExtension(filename.absFileName(),
2225                                 formats.extension(*it));
2226                         if (!theConverters().convert(0, filename, FileName(tofile),
2227                                 filename, format, *it, errorList))
2228                                 return false;
2229                         loader_format = *it;
2230                         break;
2231                 }
2232                 if (loader_format.empty()) {
2233                         frontend::Alert::error(_("Couldn't import file"),
2234                                          bformat(_("No information for importing the format %1$s."),
2235                                          formats.prettyName(format)));
2236                         return false;
2237                 }
2238         } else
2239                 loader_format = format;
2240
2241         if (loader_format == "lyx") {
2242                 Buffer * buf = lv->loadDocument(lyxfile);
2243                 if (!buf)
2244                         return false;
2245         } else {
2246                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
2247                 if (!b)
2248                         return false;
2249                 lv->setBuffer(b);
2250                 bool as_paragraphs = loader_format == "textparagraph";
2251                 string filename2 = (loader_format == format) ? filename.absFileName()
2252                         : support::changeExtension(filename.absFileName(),
2253                                           formats.extension(loader_format));
2254                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
2255                         as_paragraphs);
2256                 guiApp->setCurrentView(lv);
2257                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
2258         }
2259
2260         return true;
2261 }
2262
2263
2264 void GuiView::importDocument(string const & argument)
2265 {
2266         string format;
2267         string filename = split(argument, format, ' ');
2268
2269         LYXERR(Debug::INFO, format << " file: " << filename);
2270
2271         // need user interaction
2272         if (filename.empty()) {
2273                 string initpath = lyxrc.document_path;
2274                 if (documentBufferView()) {
2275                         string const trypath = documentBufferView()->buffer().filePath();
2276                         // If directory is writeable, use this as default.
2277                         if (FileName(trypath).isDirWritable())
2278                                 initpath = trypath;
2279                 }
2280
2281                 docstring const text = bformat(_("Select %1$s file to import"),
2282                         formats.prettyName(format));
2283
2284                 FileDialog dlg(toqstr(text));
2285                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2286                 dlg.setButton2(qt_("Examples|#E#e"),
2287                         toqstr(addPath(package().system_support().absFileName(), "examples")));
2288
2289                 docstring filter = formats.prettyName(format);
2290                 filter += " (*.{";
2291                 // FIXME UNICODE
2292                 filter += from_utf8(formats.extensions(format));
2293                 filter += "})";
2294
2295                 FileDialog::Result result =
2296                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2297
2298                 if (result.first == FileDialog::Later)
2299                         return;
2300
2301                 filename = fromqstr(result.second);
2302
2303                 // check selected filename
2304                 if (filename.empty())
2305                         message(_("Canceled."));
2306         }
2307
2308         if (filename.empty())
2309                 return;
2310
2311         // get absolute path of file
2312         FileName const fullname(support::makeAbsPath(filename));
2313
2314         // Can happen if the user entered a path into the dialog
2315         // (see bug #7437)
2316         if (fullname.onlyFileName().empty()) {
2317                 docstring msg = bformat(_("The file name '%1$s' is invalid!\n"
2318                                           "Aborting import."),
2319                                         from_utf8(fullname.absFileName()));
2320                 frontend::Alert::error(_("File name error"), msg);
2321                 message(_("Canceled."));
2322                 return;
2323         }
2324
2325
2326         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2327
2328         // Check if the document already is open
2329         Buffer * buf = theBufferList().getBuffer(lyxfile);
2330         if (buf) {
2331                 setBuffer(buf);
2332                 if (!closeBuffer()) {
2333                         message(_("Canceled."));
2334                         return;
2335                 }
2336         }
2337
2338         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
2339
2340         // if the file exists already, and we didn't do
2341         // -i lyx thefile.lyx, warn
2342         if (lyxfile.exists() && fullname != lyxfile) {
2343
2344                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2345                         "Do you want to overwrite that document?"), displaypath);
2346                 int const ret = Alert::prompt(_("Overwrite document?"),
2347                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
2348
2349                 if (ret == 1) {
2350                         message(_("Canceled."));
2351                         return;
2352                 }
2353         }
2354
2355         message(bformat(_("Importing %1$s..."), displaypath));
2356         ErrorList errorList;
2357         if (import(this, fullname, format, errorList))
2358                 message(_("imported."));
2359         else
2360                 message(_("file not imported!"));
2361
2362         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2363 }
2364
2365
2366 void GuiView::newDocument(string const & filename, bool from_template)
2367 {
2368         FileName initpath(lyxrc.document_path);
2369         if (documentBufferView()) {
2370                 FileName const trypath(documentBufferView()->buffer().filePath());
2371                 // If directory is writeable, use this as default.
2372                 if (trypath.isDirWritable())
2373                         initpath = trypath;
2374         }
2375
2376         string templatefile;
2377         if (from_template) {
2378                 templatefile = selectTemplateFile().absFileName();
2379                 if (templatefile.empty())
2380                         return;
2381         }
2382
2383         Buffer * b;
2384         if (filename.empty())
2385                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
2386         else
2387                 b = newFile(filename, templatefile, true);
2388
2389         if (b)
2390                 setBuffer(b);
2391
2392         // If no new document could be created, it is unsure
2393         // whether there is a valid BufferView.
2394         if (currentBufferView())
2395                 // Ensure the cursor is correctly positioned on screen.
2396                 currentBufferView()->showCursor();
2397 }
2398
2399
2400 void GuiView::insertLyXFile(docstring const & fname)
2401 {
2402         BufferView * bv = documentBufferView();
2403         if (!bv)
2404                 return;
2405
2406         // FIXME UNICODE
2407         FileName filename(to_utf8(fname));
2408         if (filename.empty()) {
2409                 // Launch a file browser
2410                 // FIXME UNICODE
2411                 string initpath = lyxrc.document_path;
2412                 string const trypath = bv->buffer().filePath();
2413                 // If directory is writeable, use this as default.
2414                 if (FileName(trypath).isDirWritable())
2415                         initpath = trypath;
2416
2417                 // FIXME UNICODE
2418                 FileDialog dlg(qt_("Select LyX document to insert"));
2419                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2420                 dlg.setButton2(qt_("Examples|#E#e"),
2421                         toqstr(addPath(package().system_support().absFileName(),
2422                         "examples")));
2423
2424                 FileDialog::Result result = dlg.open(toqstr(initpath),
2425                                          QStringList(qt_("LyX Documents (*.lyx)")));
2426
2427                 if (result.first == FileDialog::Later)
2428                         return;
2429
2430                 // FIXME UNICODE
2431                 filename.set(fromqstr(result.second));
2432
2433                 // check selected filename
2434                 if (filename.empty()) {
2435                         // emit message signal.
2436                         message(_("Canceled."));
2437                         return;
2438                 }
2439         }
2440
2441         bv->insertLyXFile(filename);
2442         bv->buffer().errors("Parse");
2443 }
2444
2445
2446 bool GuiView::renameBuffer(Buffer & b, docstring const & newname, RenameKind kind)
2447 {
2448         FileName fname = b.fileName();
2449         FileName const oldname = fname;
2450
2451         if (!newname.empty()) {
2452                 // FIXME UNICODE
2453                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFileName());
2454         } else {
2455                 // Switch to this Buffer.
2456                 setBuffer(&b);
2457
2458                 // No argument? Ask user through dialog.
2459                 // FIXME UNICODE
2460                 FileDialog dlg(qt_("Choose a filename to save document as"));
2461                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2462                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2463
2464                 if (!isLyXFileName(fname.absFileName()))
2465                         fname.changeExtension(".lyx");
2466
2467                 FileDialog::Result result =
2468                         dlg.save(toqstr(fname.onlyPath().absFileName()),
2469                                    QStringList(qt_("LyX Documents (*.lyx)")),
2470                                          toqstr(fname.onlyFileName()));
2471
2472                 if (result.first == FileDialog::Later)
2473                         return false;
2474
2475                 fname.set(fromqstr(result.second));
2476
2477                 if (fname.empty())
2478                         return false;
2479
2480                 if (!isLyXFileName(fname.absFileName()))
2481                         fname.changeExtension(".lyx");
2482         }
2483
2484         // fname is now the new Buffer location.
2485
2486         // if there is already a Buffer open with this name, we do not want
2487         // to have another one. (the second test makes sure we're not just
2488         // trying to overwrite ourselves, which is fine.)
2489         if (theBufferList().exists(fname) && fname != oldname
2490                   && theBufferList().getBuffer(fname) != &b) {
2491                 docstring const text =
2492                         bformat(_("The file\n%1$s\nis already open in your current session.\n"
2493                             "Please close it before attempting to overwrite it.\n"
2494                             "Do you want to choose a new filename?"),
2495                                 from_utf8(fname.absFileName()));
2496                 int const ret = Alert::prompt(_("Chosen File Already Open"),
2497                         text, 0, 1, _("&Rename"), _("&Cancel"));
2498                 switch (ret) {
2499                 case 0: return renameBuffer(b, docstring(), kind);
2500                 case 1: return false;
2501                 }
2502                 //return false;
2503         }
2504
2505         bool const existsLocal = fname.exists();
2506         bool const existsInVC = LyXVC::fileInVC(fname);
2507         if (existsLocal || existsInVC) {
2508                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2509                 if (kind != LV_WRITE_AS && existsInVC) {
2510                         // renaming to a name that is already in VC
2511                         // would not work
2512                         docstring text = bformat(_("The document %1$s "
2513                                         "is already registered.\n\n"
2514                                         "Do you want to choose a new name?"),
2515                                 file);
2516                         docstring const title = (kind == LV_VC_RENAME) ?
2517                                 _("Rename document?") : _("Copy document?");
2518                         docstring const button = (kind == LV_VC_RENAME) ?
2519                                 _("&Rename") : _("&Copy");
2520                         int const ret = Alert::prompt(title, text, 0, 1,
2521                                 button, _("&Cancel"));
2522                         switch (ret) {
2523                         case 0: return renameBuffer(b, docstring(), kind);
2524                         case 1: return false;
2525                         }
2526                 }
2527
2528                 if (existsLocal) {
2529                         docstring text = bformat(_("The document %1$s "
2530                                         "already exists.\n\n"
2531                                         "Do you want to overwrite that document?"),
2532                                 file);
2533                         int const ret = Alert::prompt(_("Overwrite document?"),
2534                                         text, 0, 2, _("&Overwrite"),
2535                                         _("&Rename"), _("&Cancel"));
2536                         switch (ret) {
2537                         case 0: break;
2538                         case 1: return renameBuffer(b, docstring(), kind);
2539                         case 2: return false;
2540                         }
2541                 }
2542         }
2543
2544         switch (kind) {
2545         case LV_VC_RENAME: {
2546                 string msg = b.lyxvc().rename(fname);
2547                 if (msg.empty())
2548                         return false;
2549                 message(from_utf8(msg));
2550                 break;
2551         }
2552         case LV_VC_COPY: {
2553                 string msg = b.lyxvc().copy(fname);
2554                 if (msg.empty())
2555                         return false;
2556                 message(from_utf8(msg));
2557                 break;
2558         }
2559         case LV_WRITE_AS:
2560                 break;
2561         }
2562         // LyXVC created the file already in case of LV_VC_RENAME or
2563         // LV_VC_COPY, but call saveBuffer() nevertheless to get
2564         // relative paths of included stuff right if we moved e.g. from
2565         // /a/b.lyx to /a/c/b.lyx.
2566
2567         bool const saved = saveBuffer(b, fname);
2568         if (saved)
2569                 b.reload();
2570         return saved;
2571 }
2572
2573
2574 bool GuiView::exportBufferAs(Buffer & b, docstring const & iformat)
2575 {
2576         FileName fname = b.fileName();
2577
2578         FileDialog dlg(qt_("Choose a filename to export the document as"));
2579         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2580
2581         QStringList types;
2582         QString const anyformat = qt_("Guess from extension (*.*)");
2583         types << anyformat;
2584
2585         vector<Format const *> export_formats;
2586         for (Format const & f : formats)
2587                 if (f.documentFormat())
2588                         export_formats.push_back(&f);
2589         sort(export_formats.begin(), export_formats.end(), Format::formatSorter);
2590         map<QString, string> fmap;
2591         QString filter;
2592         string ext;
2593         for (Format const * f : export_formats) {
2594                 docstring const loc_prettyname = translateIfPossible(f->prettyname());
2595                 QString const loc_filter = toqstr(bformat(from_ascii("%1$s (*.%2$s)"),
2596                                                      loc_prettyname,
2597                                                      from_ascii(f->extension())));
2598                 types << loc_filter;
2599                 fmap[loc_filter] = f->name();
2600                 if (from_ascii(f->name()) == iformat) {
2601                         filter = loc_filter;
2602                         ext = f->extension();
2603                 }
2604         }
2605         string ofname = fname.onlyFileName();
2606         if (!ext.empty())
2607                 ofname = support::changeExtension(ofname, ext);
2608         FileDialog::Result result =
2609                 dlg.save(toqstr(fname.onlyPath().absFileName()),
2610                          types,
2611                          toqstr(ofname),
2612                          &filter);
2613         if (result.first != FileDialog::Chosen)
2614                 return false;
2615
2616         string fmt_name;
2617         fname.set(fromqstr(result.second));
2618         if (filter == anyformat)
2619                 fmt_name = formats.getFormatFromExtension(fname.extension());
2620         else
2621                 fmt_name = fmap[filter];
2622         LYXERR(Debug::FILES, "filter=" << fromqstr(filter)
2623                << ", fmt_name=" << fmt_name << ", fname=" << fname.absFileName());
2624
2625         if (fmt_name.empty() || fname.empty())
2626                 return false;
2627
2628         // fname is now the new Buffer location.
2629         if (FileName(fname).exists()) {
2630                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2631                 docstring text = bformat(_("The document %1$s already "
2632                                            "exists.\n\nDo you want to "
2633                                            "overwrite that document?"),
2634                                          file);
2635                 int const ret = Alert::prompt(_("Overwrite document?"),
2636                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2637                 switch (ret) {
2638                 case 0: break;
2639                 case 1: return exportBufferAs(b, from_ascii(fmt_name));
2640                 case 2: return false;
2641                 }
2642         }
2643
2644         FuncRequest cmd(LFUN_BUFFER_EXPORT, fmt_name + " " + fname.absFileName());
2645         DispatchResult dr;
2646         dispatch(cmd, dr);
2647         return dr.dispatched();
2648 }
2649
2650
2651 bool GuiView::saveBuffer(Buffer & b)
2652 {
2653         return saveBuffer(b, FileName());
2654 }
2655
2656
2657 bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
2658 {
2659         if (workArea(b) && workArea(b)->inDialogMode())
2660                 return true;
2661
2662         if (fn.empty() && b.isUnnamed())
2663                 return renameBuffer(b, docstring());
2664
2665         bool const success = (fn.empty() ? b.save() : b.saveAs(fn));
2666         if (success) {
2667                 theSession().lastFiles().add(b.fileName());
2668                 return true;
2669         }
2670
2671         // Switch to this Buffer.
2672         setBuffer(&b);
2673
2674         // FIXME: we don't tell the user *WHY* the save failed !!
2675         docstring const file = makeDisplayPath(b.absFileName(), 30);
2676         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2677                                    "Do you want to rename the document and "
2678                                    "try again?"), file);
2679         int const ret = Alert::prompt(_("Rename and save?"),
2680                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2681         switch (ret) {
2682         case 0:
2683                 if (!renameBuffer(b, docstring()))
2684                         return false;
2685                 break;
2686         case 1:
2687                 break;
2688         case 2:
2689                 return false;
2690         }
2691
2692         return saveBuffer(b, fn);
2693 }
2694
2695
2696 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2697 {
2698         return closeWorkArea(wa, false);
2699 }
2700
2701
2702 // We only want to close the buffer if it is not visible in other workareas
2703 // of the same view, nor in other views, and if this is not a child
2704 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2705 {
2706         Buffer & buf = wa->bufferView().buffer();
2707
2708         bool last_wa = d.countWorkAreasOf(buf) == 1
2709                 && !inOtherView(buf) && !buf.parent();
2710
2711         bool close_buffer = last_wa;
2712
2713         if (last_wa) {
2714                 if (lyxrc.close_buffer_with_last_view == "yes")
2715                         ; // Nothing to do
2716                 else if (lyxrc.close_buffer_with_last_view == "no")
2717                         close_buffer = false;
2718                 else {
2719                         docstring file;
2720                         if (buf.isUnnamed())
2721                                 file = from_utf8(buf.fileName().onlyFileName());
2722                         else
2723                                 file = buf.fileName().displayName(30);
2724                         docstring const text = bformat(
2725                                 _("Last view on document %1$s is being closed.\n"
2726                                   "Would you like to close or hide the document?\n"
2727                                   "\n"
2728                                   "Hidden documents can be displayed back through\n"
2729                                   "the menu: View->Hidden->...\n"
2730                                   "\n"
2731                                   "To remove this question, set your preference in:\n"
2732                                   "  Tools->Preferences->Look&Feel->UserInterface\n"
2733                                 ), file);
2734                         int ret = Alert::prompt(_("Close or hide document?"),
2735                                 text, 0, 1, _("&Close"), _("&Hide"));
2736                         close_buffer = (ret == 0);
2737                 }
2738         }
2739
2740         return closeWorkArea(wa, close_buffer);
2741 }
2742
2743
2744 bool GuiView::closeBuffer()
2745 {
2746         GuiWorkArea * wa = currentMainWorkArea();
2747         // coverity complained about this
2748         // it seems unnecessary, but perhaps is worth the check
2749         LASSERT(wa, return false);
2750
2751         setCurrentWorkArea(wa);
2752         Buffer & buf = wa->bufferView().buffer();
2753         return closeWorkArea(wa, !buf.parent());
2754 }
2755
2756
2757 void GuiView::writeSession() const {
2758         GuiWorkArea const * active_wa = currentMainWorkArea();
2759         for (int i = 0; i < d.splitter_->count(); ++i) {
2760                 TabWorkArea * twa = d.tabWorkArea(i);
2761                 for (int j = 0; j < twa->count(); ++j) {
2762                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
2763                         Buffer & buf = wa->bufferView().buffer();
2764                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2765                 }
2766         }
2767 }
2768
2769
2770 bool GuiView::closeBufferAll()
2771 {
2772         // Close the workareas in all other views
2773         QList<int> const ids = guiApp->viewIds();
2774         for (int i = 0; i != ids.size(); ++i) {
2775                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2776                         return false;
2777         }
2778
2779         // Close our own workareas
2780         if (!closeWorkAreaAll())
2781                 return false;
2782
2783         // Now close the hidden buffers. We prevent hidden buffers from being
2784         // dirty, so we can just close them.
2785         theBufferList().closeAll();
2786         return true;
2787 }
2788
2789
2790 bool GuiView::closeWorkAreaAll()
2791 {
2792         setCurrentWorkArea(currentMainWorkArea());
2793
2794         // We might be in a situation that there is still a tabWorkArea, but
2795         // there are no tabs anymore. This can happen when we get here after a
2796         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2797         // many TabWorkArea's have no documents anymore.
2798         int empty_twa = 0;
2799
2800         // We have to call count() each time, because it can happen that
2801         // more than one splitter will disappear in one iteration (bug 5998).
2802         while (d.splitter_->count() > empty_twa) {
2803                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2804
2805                 if (twa->count() == 0)
2806                         ++empty_twa;
2807                 else {
2808                         setCurrentWorkArea(twa->currentWorkArea());
2809                         if (!closeTabWorkArea(twa))
2810                                 return false;
2811                 }
2812         }
2813         return true;
2814 }
2815
2816
2817 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2818 {
2819         if (!wa)
2820                 return false;
2821
2822         Buffer & buf = wa->bufferView().buffer();
2823
2824         if (GuiViewPrivate::busyBuffers.contains(&buf)) {
2825                 Alert::warning(_("Close document"),
2826                         _("Document could not be closed because it is being processed by LyX."));
2827                 return false;
2828         }
2829
2830         if (close_buffer)
2831                 return closeBuffer(buf);
2832         else {
2833                 if (!inMultiTabs(wa))
2834                         if (!saveBufferIfNeeded(buf, true))
2835                                 return false;
2836                 removeWorkArea(wa);
2837                 return true;
2838         }
2839 }
2840
2841
2842 bool GuiView::closeBuffer(Buffer & buf)
2843 {
2844         // If we are in a close_event all children will be closed in some time,
2845         // so no need to do it here. This will ensure that the children end up
2846         // in the session file in the correct order. If we close the master
2847         // buffer, we can close or release the child buffers here too.
2848         bool success = true;
2849         if (!closing_) {
2850                 ListOfBuffers clist = buf.getChildren();
2851                 ListOfBuffers::const_iterator it = clist.begin();
2852                 ListOfBuffers::const_iterator const bend = clist.end();
2853                 for (; it != bend; ++it) {
2854                         Buffer * child_buf = *it;
2855                         if (theBufferList().isOthersChild(&buf, child_buf)) {
2856                                 child_buf->setParent(0);
2857                                 continue;
2858                         }
2859
2860                         // FIXME: should we look in other tabworkareas?
2861                         // ANSWER: I don't think so. I've tested, and if the child is
2862                         // open in some other window, it closes without a problem.
2863                         GuiWorkArea * child_wa = workArea(*child_buf);
2864                         if (child_wa) {
2865                                 success = closeWorkArea(child_wa, true);
2866                                 if (!success)
2867                                         break;
2868                         } else {
2869                                 // In this case the child buffer is open but hidden.
2870                                 // It therefore should not (MUST NOT) be dirty!
2871                                 LATTEST(child_buf->isClean());
2872                                 theBufferList().release(child_buf);
2873                         }
2874                 }
2875         }
2876         if (success) {
2877                 // goto bookmark to update bookmark pit.
2878                 // FIXME: we should update only the bookmarks related to this buffer!
2879                 LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2880                 for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2881                         guiApp->gotoBookmark(i+1, false, false);
2882
2883                 if (saveBufferIfNeeded(buf, false)) {
2884                         buf.removeAutosaveFile();
2885                         theBufferList().release(&buf);
2886                         return true;
2887                 }
2888         }
2889         // open all children again to avoid a crash because of dangling
2890         // pointers (bug 6603)
2891         buf.updateBuffer();
2892         return false;
2893 }
2894
2895
2896 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2897 {
2898         while (twa == d.currentTabWorkArea()) {
2899                 twa->setCurrentIndex(twa->count() - 1);
2900
2901                 GuiWorkArea * wa = twa->currentWorkArea();
2902                 Buffer & b = wa->bufferView().buffer();
2903
2904                 // We only want to close the buffer if the same buffer is not visible
2905                 // in another view, and if this is not a child and if we are closing
2906                 // a view (not a tabgroup).
2907                 bool const close_buffer =
2908                         !inOtherView(b) && !b.parent() && closing_;
2909
2910                 if (!closeWorkArea(wa, close_buffer))
2911                         return false;
2912         }
2913         return true;
2914 }
2915
2916
2917 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2918 {
2919         if (buf.isClean() || buf.paragraphs().empty())
2920                 return true;
2921
2922         // Switch to this Buffer.
2923         setBuffer(&buf);
2924
2925         docstring file;
2926         // FIXME: Unicode?
2927         if (buf.isUnnamed())
2928                 file = from_utf8(buf.fileName().onlyFileName());
2929         else
2930                 file = buf.fileName().displayName(30);
2931
2932         // Bring this window to top before asking questions.
2933         raise();
2934         activateWindow();
2935
2936         int ret;
2937         if (hiding && buf.isUnnamed()) {
2938                 docstring const text = bformat(_("The document %1$s has not been "
2939                                                  "saved yet.\n\nDo you want to save "
2940                                                  "the document?"), file);
2941                 ret = Alert::prompt(_("Save new document?"),
2942                         text, 0, 1, _("&Save"), _("&Cancel"));
2943                 if (ret == 1)
2944                         ++ret;
2945         } else {
2946                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2947                         "\n\nDo you want to save the document or discard the changes?"), file);
2948                 ret = Alert::prompt(_("Save changed document?"),
2949                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2950         }
2951
2952         switch (ret) {
2953         case 0:
2954                 if (!saveBuffer(buf))
2955                         return false;
2956                 break;
2957         case 1:
2958                 // If we crash after this we could have no autosave file
2959                 // but I guess this is really improbable (Jug).
2960                 // Sometimes improbable things happen:
2961                 // - see bug http://www.lyx.org/trac/ticket/6587 (ps)
2962                 // buf.removeAutosaveFile();
2963                 if (hiding)
2964                         // revert all changes
2965                         reloadBuffer(buf);
2966                 buf.markClean();
2967                 break;
2968         case 2:
2969                 return false;
2970         }
2971         return true;
2972 }
2973
2974
2975 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2976 {
2977         Buffer & buf = wa->bufferView().buffer();
2978
2979         for (int i = 0; i != d.splitter_->count(); ++i) {
2980                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2981                 if (wa_ && wa_ != wa)
2982                         return true;
2983         }
2984         return inOtherView(buf);
2985 }
2986
2987
2988 bool GuiView::inOtherView(Buffer & buf)
2989 {
2990         QList<int> const ids = guiApp->viewIds();
2991
2992         for (int i = 0; i != ids.size(); ++i) {
2993                 if (id_ == ids[i])
2994                         continue;
2995
2996                 if (guiApp->view(ids[i]).workArea(buf))
2997                         return true;
2998         }
2999         return false;
3000 }
3001
3002
3003 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move)
3004 {
3005         if (!documentBufferView())
3006                 return;
3007
3008         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3009                 Buffer * const curbuf = &documentBufferView()->buffer();
3010                 int nwa = twa->count();
3011                 for (int i = 0; i < nwa; ++i) {
3012                         if (&workArea(i)->bufferView().buffer() == curbuf) {
3013                                 int next_index;
3014                                 if (np == NEXTBUFFER)
3015                                         next_index = (i == nwa - 1 ? 0 : i + 1);
3016                                 else
3017                                         next_index = (i == 0 ? nwa - 1 : i - 1);
3018                                 if (move)
3019                                         twa->moveTab(i, next_index);
3020                                 else
3021                                         setBuffer(&workArea(next_index)->bufferView().buffer());
3022                                 break;
3023                         }
3024                 }
3025         }
3026 }
3027
3028
3029 /// make sure the document is saved
3030 static bool ensureBufferClean(Buffer * buffer)
3031 {
3032         LASSERT(buffer, return false);
3033         if (buffer->isClean() && !buffer->isUnnamed())
3034                 return true;
3035
3036         docstring const file = buffer->fileName().displayName(30);
3037         docstring title;
3038         docstring text;
3039         if (!buffer->isUnnamed()) {
3040                 text = bformat(_("The document %1$s has unsaved "
3041                                                  "changes.\n\nDo you want to save "
3042                                                  "the document?"), file);
3043                 title = _("Save changed document?");
3044
3045         } else {
3046                 text = bformat(_("The document %1$s has not been "
3047                                                  "saved yet.\n\nDo you want to save "
3048                                                  "the document?"), file);
3049                 title = _("Save new document?");
3050         }
3051         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
3052
3053         if (ret == 0)
3054                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
3055
3056         return buffer->isClean() && !buffer->isUnnamed();
3057 }
3058
3059
3060 bool GuiView::reloadBuffer(Buffer & buf)
3061 {
3062         Buffer::ReadStatus status = buf.reload();
3063         return status == Buffer::ReadSuccess;
3064 }
3065
3066
3067 void GuiView::checkExternallyModifiedBuffers()
3068 {
3069         BufferList::iterator bit = theBufferList().begin();
3070         BufferList::iterator const bend = theBufferList().end();
3071         for (; bit != bend; ++bit) {
3072                 Buffer * buf = *bit;
3073                 if (buf->fileName().exists()
3074                         && buf->isExternallyModified(Buffer::checksum_method)) {
3075                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
3076                                         " Reload now? Any local changes will be lost."),
3077                                         from_utf8(buf->absFileName()));
3078                         int const ret = Alert::prompt(_("Reload externally changed document?"),
3079                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
3080                         if (!ret)
3081                                 reloadBuffer(*buf);
3082                 }
3083         }
3084 }
3085
3086
3087 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
3088 {
3089         Buffer * buffer = documentBufferView()
3090                 ? &(documentBufferView()->buffer()) : 0;
3091
3092         switch (cmd.action()) {
3093         case LFUN_VC_REGISTER:
3094                 if (!buffer || !ensureBufferClean(buffer))
3095                         break;
3096                 if (!buffer->lyxvc().inUse()) {
3097                         if (buffer->lyxvc().registrer()) {
3098                                 reloadBuffer(*buffer);
3099                                 dr.clearMessageUpdate();
3100                         }
3101                 }
3102                 break;
3103
3104         case LFUN_VC_RENAME:
3105         case LFUN_VC_COPY: {
3106                 if (!buffer || !ensureBufferClean(buffer))
3107                         break;
3108                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
3109                         if (buffer->lyxvc().isCheckInWithConfirmation()) {
3110                                 // Some changes are not yet committed.
3111                                 // We test here and not in getStatus(), since
3112                                 // this test is expensive.
3113                                 string log;
3114                                 LyXVC::CommandResult ret =
3115                                         buffer->lyxvc().checkIn(log);
3116                                 dr.setMessage(log);
3117                                 if (ret == LyXVC::ErrorCommand ||
3118                                     ret == LyXVC::VCSuccess)
3119                                         reloadBuffer(*buffer);
3120                                 if (buffer->lyxvc().isCheckInWithConfirmation()) {
3121                                         frontend::Alert::error(
3122                                                 _("Revision control error."),
3123                                                 _("Document could not be checked in."));
3124                                         break;
3125                                 }
3126                         }
3127                         RenameKind const kind = (cmd.action() == LFUN_VC_RENAME) ?
3128                                 LV_VC_RENAME : LV_VC_COPY;
3129                         renameBuffer(*buffer, cmd.argument(), kind);
3130                 }
3131                 break;
3132         }
3133
3134         case LFUN_VC_CHECK_IN:
3135                 if (!buffer || !ensureBufferClean(buffer))
3136                         break;
3137                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
3138                         string log;
3139                         LyXVC::CommandResult ret = buffer->lyxvc().checkIn(log);
3140                         dr.setMessage(log);
3141                         // Only skip reloading if the checkin was cancelled or
3142                         // an error occurred before the real checkin VCS command
3143                         // was executed, since the VCS might have changed the
3144                         // file even if it could not checkin successfully.
3145                         if (ret == LyXVC::ErrorCommand || ret == LyXVC::VCSuccess)
3146                                 reloadBuffer(*buffer);
3147                 }
3148                 break;
3149
3150         case LFUN_VC_CHECK_OUT:
3151                 if (!buffer || !ensureBufferClean(buffer))
3152                         break;
3153                 if (buffer->lyxvc().inUse()) {
3154                         dr.setMessage(buffer->lyxvc().checkOut());
3155                         reloadBuffer(*buffer);
3156                 }
3157                 break;
3158
3159         case LFUN_VC_LOCKING_TOGGLE:
3160                 LASSERT(buffer, return);
3161                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
3162                         break;
3163                 if (buffer->lyxvc().inUse()) {
3164                         string res = buffer->lyxvc().lockingToggle();
3165                         if (res.empty()) {
3166                                 frontend::Alert::error(_("Revision control error."),
3167                                 _("Error when setting the locking property."));
3168                         } else {
3169                                 dr.setMessage(res);
3170                                 reloadBuffer(*buffer);
3171                         }
3172                 }
3173                 break;
3174
3175         case LFUN_VC_REVERT:
3176                 LASSERT(buffer, return);
3177                 if (buffer->lyxvc().revert()) {
3178                         reloadBuffer(*buffer);
3179                         dr.clearMessageUpdate();
3180                 }
3181                 break;
3182
3183         case LFUN_VC_UNDO_LAST:
3184                 LASSERT(buffer, return);
3185                 buffer->lyxvc().undoLast();
3186                 reloadBuffer(*buffer);
3187                 dr.clearMessageUpdate();
3188                 break;
3189
3190         case LFUN_VC_REPO_UPDATE:
3191                 LASSERT(buffer, return);
3192                 if (ensureBufferClean(buffer)) {
3193                         dr.setMessage(buffer->lyxvc().repoUpdate());
3194                         checkExternallyModifiedBuffers();
3195                 }
3196                 break;
3197
3198         case LFUN_VC_COMMAND: {
3199                 string flag = cmd.getArg(0);
3200                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
3201                         break;
3202                 docstring message;
3203                 if (contains(flag, 'M')) {
3204                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
3205                                 break;
3206                 }
3207                 string path = cmd.getArg(1);
3208                 if (contains(path, "$$p") && buffer)
3209                         path = subst(path, "$$p", buffer->filePath());
3210                 LYXERR(Debug::LYXVC, "Directory: " << path);
3211                 FileName pp(path);
3212                 if (!pp.isReadableDirectory()) {
3213                         lyxerr << _("Directory is not accessible.") << endl;
3214                         break;
3215                 }
3216                 support::PathChanger p(pp);
3217
3218                 string command = cmd.getArg(2);
3219                 if (command.empty())
3220                         break;
3221                 if (buffer) {
3222                         command = subst(command, "$$i", buffer->absFileName());
3223                         command = subst(command, "$$p", buffer->filePath());
3224                 }
3225                 command = subst(command, "$$m", to_utf8(message));
3226                 LYXERR(Debug::LYXVC, "Command: " << command);
3227                 Systemcall one;
3228                 one.startscript(Systemcall::Wait, command);
3229
3230                 if (!buffer)
3231                         break;
3232                 if (contains(flag, 'I'))
3233                         buffer->markDirty();
3234                 if (contains(flag, 'R'))
3235                         reloadBuffer(*buffer);
3236
3237                 break;
3238                 }
3239
3240         case LFUN_VC_COMPARE: {
3241                 if (cmd.argument().empty()) {
3242                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
3243                         break;
3244                 }
3245
3246                 string rev1 = cmd.getArg(0);
3247                 string f1, f2;
3248
3249                 // f1
3250                 // it seems safe to assume we have a buffer
3251                 // coverity[FORWARD_NULL]
3252                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
3253                         break;
3254
3255                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
3256                         f2 = buffer->absFileName();
3257                 } else {
3258                         string rev2 = cmd.getArg(1);
3259                         if (rev2.empty())
3260                                 break;
3261                         // f2
3262                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
3263                                 break;
3264                 }
3265
3266                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
3267                                         f1 << "\n"  << f2 << "\n" );
3268                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
3269                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
3270                 break;
3271         }
3272
3273         default:
3274                 break;
3275         }
3276 }
3277
3278
3279 void GuiView::openChildDocument(string const & fname)
3280 {
3281         LASSERT(documentBufferView(), return);
3282         Buffer & buffer = documentBufferView()->buffer();
3283         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
3284         documentBufferView()->saveBookmark(false);
3285         Buffer * child = 0;
3286         if (theBufferList().exists(filename)) {
3287                 child = theBufferList().getBuffer(filename);
3288                 setBuffer(child);
3289         } else {
3290                 message(bformat(_("Opening child document %1$s..."),
3291                         makeDisplayPath(filename.absFileName())));
3292                 child = loadDocument(filename, false);
3293         }
3294         // Set the parent name of the child document.
3295         // This makes insertion of citations and references in the child work,
3296         // when the target is in the parent or another child document.
3297         if (child)
3298                 child->setParent(&buffer);
3299 }
3300
3301
3302 bool GuiView::goToFileRow(string const & argument)
3303 {
3304         string file_name;
3305         int row;
3306         size_t i = argument.find_last_of(' ');
3307         if (i != string::npos) {
3308                 file_name = os::internal_path(trim(argument.substr(0, i)));
3309                 istringstream is(argument.substr(i + 1));
3310                 is >> row;
3311                 if (is.fail())
3312                         i = string::npos;
3313         }
3314         if (i == string::npos) {
3315                 LYXERR0("Wrong argument: " << argument);
3316                 return false;
3317         }
3318         Buffer * buf = 0;
3319         string const abstmp = package().temp_dir().absFileName();
3320         string const realtmp = package().temp_dir().realPath();
3321         // We have to use os::path_prefix_is() here, instead of
3322         // simply prefixIs(), because the file name comes from
3323         // an external application and may need case adjustment.
3324         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
3325                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
3326                 // Needed by inverse dvi search. If it is a file
3327                 // in tmpdir, call the apropriated function.
3328                 // If tmpdir is a symlink, we may have the real
3329                 // path passed back, so we correct for that.
3330                 if (!prefixIs(file_name, abstmp))
3331                         file_name = subst(file_name, realtmp, abstmp);
3332                 buf = theBufferList().getBufferFromTmp(file_name);
3333         } else {
3334                 // Must replace extension of the file to be .lyx
3335                 // and get full path
3336                 FileName const s = fileSearch(string(),
3337                                                   support::changeExtension(file_name, ".lyx"), "lyx");
3338                 // Either change buffer or load the file
3339                 if (theBufferList().exists(s))
3340                         buf = theBufferList().getBuffer(s);
3341                 else if (s.exists()) {
3342                         buf = loadDocument(s);
3343                         if (!buf)
3344                                 return false;
3345                 } else {
3346                         message(bformat(
3347                                         _("File does not exist: %1$s"),
3348                                         makeDisplayPath(file_name)));
3349                         return false;
3350                 }
3351         }
3352         if (!buf) {
3353                 message(bformat(
3354                         _("No buffer for file: %1$s."),
3355                         makeDisplayPath(file_name))
3356                 );
3357                 return false;
3358         }
3359         setBuffer(buf);
3360         bool success = documentBufferView()->setCursorFromRow(row);
3361         if (!success) {
3362                 LYXERR(Debug::LATEX,
3363                        "setCursorFromRow: invalid position for row " << row);
3364                 frontend::Alert::error(_("Inverse Search Failed"),
3365                                        _("Invalid position requested by inverse search.\n"
3366                                          "You may need to update the viewed document."));
3367         }
3368         return success;
3369 }
3370
3371
3372 void GuiView::toolBarPopup(const QPoint & /*pos*/)
3373 {
3374         QMenu * menu = new QMenu;
3375         menu = guiApp->menus().menu(toqstr("context-toolbars"), * this);
3376         menu->exec(QCursor::pos());
3377 }
3378
3379
3380 template<class T>
3381 Buffer::ExportStatus GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * clone, string const & format)
3382 {
3383         Buffer::ExportStatus const status = func(format);
3384
3385         // the cloning operation will have produced a clone of the entire set of
3386         // documents, starting from the master. so we must delete those.
3387         Buffer * mbuf = const_cast<Buffer *>(clone->masterBuffer());
3388         delete mbuf;
3389         busyBuffers.remove(orig);
3390         return status;
3391 }
3392
3393
3394 Buffer::ExportStatus GuiView::GuiViewPrivate::compileAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3395 {
3396         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3397         return runAndDestroy(lyx::bind(mem_func, clone, _1, true), orig, clone, format);
3398 }
3399
3400
3401 Buffer::ExportStatus GuiView::GuiViewPrivate::exportAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3402 {
3403         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3404         return runAndDestroy(lyx::bind(mem_func, clone, _1, false), orig, clone, format);
3405 }
3406
3407
3408 Buffer::ExportStatus GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3409 {
3410         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &) const = &Buffer::preview;
3411         return runAndDestroy(lyx::bind(mem_func, clone, _1), orig, clone, format);
3412 }
3413
3414
3415 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
3416                            string const & argument,
3417                            Buffer const * used_buffer,
3418                            docstring const & msg,
3419                            Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
3420                            Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
3421                            Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const)
3422 {
3423         if (!used_buffer)
3424                 return false;
3425
3426         string format = argument;
3427         if (format.empty())
3428                 format = used_buffer->params().getDefaultOutputFormat();
3429         processing_format = format;
3430         if (!msg.empty()) {
3431                 progress_->clearMessages();
3432                 gv_->message(msg);
3433         }
3434 #if EXPORT_in_THREAD
3435         GuiViewPrivate::busyBuffers.insert(used_buffer);
3436         Buffer * cloned_buffer = used_buffer->cloneFromMaster();
3437         if (!cloned_buffer) {
3438                 Alert::error(_("Export Error"),
3439                              _("Error cloning the Buffer."));
3440                 return false;
3441         }
3442         QFuture<Buffer::ExportStatus> f = QtConcurrent::run(
3443                                 asyncFunc,
3444                                 used_buffer,
3445                                 cloned_buffer,
3446                                 format);
3447         setPreviewFuture(f);
3448         last_export_format = used_buffer->params().bufferFormat();
3449         (void) syncFunc;
3450         (void) previewFunc;
3451         // We are asynchronous, so we don't know here anything about the success
3452         return true;
3453 #else
3454         Buffer::ExportStatus status;
3455         if (syncFunc) {
3456                 status = (used_buffer->*syncFunc)(format, true);
3457         } else if (previewFunc) {
3458                 status = (used_buffer->*previewFunc)(format);
3459         } else
3460                 return false;
3461         handleExportStatus(gv_, status, format);
3462         (void) asyncFunc;
3463         return (status == Buffer::ExportSuccess
3464                         || status == Buffer::PreviewSuccess);
3465 #endif
3466 }
3467
3468 void GuiView::dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr)
3469 {
3470         BufferView * bv = currentBufferView();
3471         LASSERT(bv, return);
3472
3473         // Let the current BufferView dispatch its own actions.
3474         bv->dispatch(cmd, dr);
3475         if (dr.dispatched())
3476                 return;
3477
3478         // Try with the document BufferView dispatch if any.
3479         BufferView * doc_bv = documentBufferView();
3480         if (doc_bv && doc_bv != bv) {
3481                 doc_bv->dispatch(cmd, dr);
3482                 if (dr.dispatched())
3483                         return;
3484         }
3485
3486         // Then let the current Cursor dispatch its own actions.
3487         bv->cursor().dispatch(cmd);
3488
3489         // update completion. We do it here and not in
3490         // processKeySym to avoid another redraw just for a
3491         // changed inline completion
3492         if (cmd.origin() == FuncRequest::KEYBOARD) {
3493                 if (cmd.action() == LFUN_SELF_INSERT
3494                         || (cmd.action() == LFUN_ERT_INSERT && bv->cursor().inMathed()))
3495                         updateCompletion(bv->cursor(), true, true);
3496                 else if (cmd.action() == LFUN_CHAR_DELETE_BACKWARD)
3497                         updateCompletion(bv->cursor(), false, true);
3498                 else
3499                         updateCompletion(bv->cursor(), false, false);
3500         }
3501
3502         dr = bv->cursor().result();
3503 }
3504
3505
3506 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
3507 {
3508         BufferView * bv = currentBufferView();
3509         // By default we won't need any update.
3510         dr.screenUpdate(Update::None);
3511         // assume cmd will be dispatched
3512         dr.dispatched(true);
3513
3514         Buffer * doc_buffer = documentBufferView()
3515                 ? &(documentBufferView()->buffer()) : 0;
3516
3517         if (cmd.origin() == FuncRequest::TOC) {
3518                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
3519                 // FIXME: do we need to pass a DispatchResult object here?
3520                 toc->doDispatch(bv->cursor(), cmd);
3521                 return;
3522         }
3523
3524         string const argument = to_utf8(cmd.argument());
3525
3526         switch(cmd.action()) {
3527                 case LFUN_BUFFER_CHILD_OPEN:
3528                         openChildDocument(to_utf8(cmd.argument()));
3529                         break;
3530
3531                 case LFUN_BUFFER_IMPORT:
3532                         importDocument(to_utf8(cmd.argument()));
3533                         break;
3534
3535                 case LFUN_BUFFER_EXPORT: {
3536                         if (!doc_buffer)
3537                                 break;
3538                         // GCC only sees strfwd.h when building merged
3539                         if (::lyx::operator==(cmd.argument(), "custom")) {
3540                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
3541                                 break;
3542                         }
3543
3544                         string const dest = cmd.getArg(1);
3545                         FileName target_dir;
3546                         if (!dest.empty() && FileName::isAbsolute(dest))
3547                                 target_dir = FileName(support::onlyPath(dest));
3548                         else
3549                                 target_dir = doc_buffer->fileName().onlyPath();
3550
3551                         if ((dest.empty() && doc_buffer->isUnnamed())
3552                             || !target_dir.isDirWritable()) {
3553                                 exportBufferAs(*doc_buffer, cmd.argument());
3554                                 break;
3555                         }
3556                         /* TODO/Review: Is it a problem to also export the children?
3557                                         See the update_unincluded flag */
3558                         d.asyncBufferProcessing(argument,
3559                                                 doc_buffer,
3560                                                 _("Exporting ..."),
3561                                                 &GuiViewPrivate::exportAndDestroy,
3562                                                 &Buffer::doExport,
3563                                                 0);
3564                         // TODO Inform user about success
3565                         break;
3566                 }
3567
3568                 case LFUN_BUFFER_EXPORT_AS: {
3569                         LASSERT(doc_buffer, break);
3570                         docstring f = cmd.argument();
3571                         if (f.empty())
3572                                 f = from_ascii(doc_buffer->params().getDefaultOutputFormat());
3573                         exportBufferAs(*doc_buffer, f);
3574                         break;
3575                 }
3576
3577                 case LFUN_BUFFER_UPDATE: {
3578                         d.asyncBufferProcessing(argument,
3579                                                 doc_buffer,
3580                                                 _("Exporting ..."),
3581                                                 &GuiViewPrivate::compileAndDestroy,
3582                                                 &Buffer::doExport,
3583                                                 0);
3584                         break;
3585                 }
3586                 case LFUN_BUFFER_VIEW: {
3587                         d.asyncBufferProcessing(argument,
3588                                                 doc_buffer,
3589                                                 _("Previewing ..."),
3590                                                 &GuiViewPrivate::previewAndDestroy,
3591                                                 0,
3592                                                 &Buffer::preview);
3593                         break;
3594                 }
3595                 case LFUN_MASTER_BUFFER_UPDATE: {
3596                         d.asyncBufferProcessing(argument,
3597                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3598                                                 docstring(),
3599                                                 &GuiViewPrivate::compileAndDestroy,
3600                                                 &Buffer::doExport,
3601                                                 0);
3602                         break;
3603                 }
3604                 case LFUN_MASTER_BUFFER_VIEW: {
3605                         d.asyncBufferProcessing(argument,
3606                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3607                                                 docstring(),
3608                                                 &GuiViewPrivate::previewAndDestroy,
3609                                                 0, &Buffer::preview);
3610                         break;
3611                 }
3612                 case LFUN_BUFFER_SWITCH: {
3613                         string const file_name = to_utf8(cmd.argument());
3614                         if (!FileName::isAbsolute(file_name)) {
3615                                 dr.setError(true);
3616                                 dr.setMessage(_("Absolute filename expected."));
3617                                 break;
3618                         }
3619
3620                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3621                         if (!buffer) {
3622                                 dr.setError(true);
3623                                 dr.setMessage(_("Document not loaded"));
3624                                 break;
3625                         }
3626
3627                         // Do we open or switch to the buffer in this view ?
3628                         if (workArea(*buffer)
3629                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3630                                 setBuffer(buffer);
3631                                 break;
3632                         }
3633
3634                         // Look for the buffer in other views
3635                         QList<int> const ids = guiApp->viewIds();
3636                         int i = 0;
3637                         for (; i != ids.size(); ++i) {
3638                                 GuiView & gv = guiApp->view(ids[i]);
3639                                 if (gv.workArea(*buffer)) {
3640                                         gv.raise();
3641                                         gv.activateWindow();
3642                                         gv.setFocus();
3643                                         gv.setBuffer(buffer);
3644                                         break;
3645                                 }
3646                         }
3647
3648                         // If necessary, open a new window as a last resort
3649                         if (i == ids.size()) {
3650                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3651                                 lyx::dispatch(cmd);
3652                         }
3653                         break;
3654                 }
3655
3656                 case LFUN_BUFFER_NEXT:
3657                         gotoNextOrPreviousBuffer(NEXTBUFFER, false);
3658                         break;
3659
3660                 case LFUN_BUFFER_MOVE_NEXT:
3661                         gotoNextOrPreviousBuffer(NEXTBUFFER, true);
3662                         break;
3663
3664                 case LFUN_BUFFER_PREVIOUS:
3665                         gotoNextOrPreviousBuffer(PREVBUFFER, false);
3666                         break;
3667
3668                 case LFUN_BUFFER_MOVE_PREVIOUS:
3669                         gotoNextOrPreviousBuffer(PREVBUFFER, true);
3670                         break;
3671
3672                 case LFUN_COMMAND_EXECUTE: {
3673                         command_execute_ = true;
3674                         minibuffer_focus_ = true;
3675                         break;
3676                 }
3677                 case LFUN_DROP_LAYOUTS_CHOICE:
3678                         d.layout_->showPopup();
3679                         break;
3680
3681                 case LFUN_MENU_OPEN:
3682                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3683                                 menu->exec(QCursor::pos());
3684                         break;
3685
3686                 case LFUN_FILE_INSERT:
3687                         insertLyXFile(cmd.argument());
3688                         break;
3689
3690                 case LFUN_FILE_INSERT_PLAINTEXT:
3691                 case LFUN_FILE_INSERT_PLAINTEXT_PARA: {
3692                         string const fname = to_utf8(cmd.argument());
3693                         if (!fname.empty() && !FileName::isAbsolute(fname)) {
3694                                 dr.setMessage(_("Absolute filename expected."));
3695                                 break;
3696                         }
3697
3698                         FileName filename(fname);
3699                         if (fname.empty()) {
3700                                 FileDialog dlg(qt_("Select file to insert"));
3701
3702                                 FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
3703                                         QStringList(qt_("All Files (*)")));
3704
3705                                 if (result.first == FileDialog::Later || result.second.isEmpty()) {
3706                                         dr.setMessage(_("Canceled."));
3707                                         break;
3708                                 }
3709
3710                                 filename.set(fromqstr(result.second));
3711                         }
3712
3713                         if (bv) {
3714                                 FuncRequest const new_cmd(cmd, filename.absoluteFilePath());
3715                                 bv->dispatch(new_cmd, dr);
3716                         }
3717                         break;
3718                 }
3719
3720                 case LFUN_BUFFER_RELOAD: {
3721                         LASSERT(doc_buffer, break);
3722
3723                         int ret = 0;
3724                         if (!doc_buffer->isClean()) {
3725                                 docstring const file =
3726                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3727                                 docstring text = bformat(_("Any changes will be lost. "
3728                                         "Are you sure you want to revert to the saved version "
3729                                         "of the document %1$s?"), file);
3730                                 ret = Alert::prompt(_("Revert to saved document?"),
3731                                         text, 1, 1, _("&Revert"), _("&Cancel"));
3732                         }
3733
3734                         if (ret == 0) {
3735                                 doc_buffer->markClean();
3736                                 reloadBuffer(*doc_buffer);
3737                                 dr.forceBufferUpdate();
3738                         }
3739                         break;
3740                 }
3741
3742                 case LFUN_BUFFER_WRITE:
3743                         LASSERT(doc_buffer, break);
3744                         saveBuffer(*doc_buffer);
3745                         break;
3746
3747                 case LFUN_BUFFER_WRITE_AS:
3748                         LASSERT(doc_buffer, break);
3749                         renameBuffer(*doc_buffer, cmd.argument());
3750                         break;
3751
3752                 case LFUN_BUFFER_WRITE_ALL: {
3753                         Buffer * first = theBufferList().first();
3754                         if (!first)
3755                                 break;
3756                         message(_("Saving all documents..."));
3757                         // We cannot use a for loop as the buffer list cycles.
3758                         Buffer * b = first;
3759                         do {
3760                                 if (!b->isClean()) {
3761                                         saveBuffer(*b);
3762                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3763                                 }
3764                                 b = theBufferList().next(b);
3765                         } while (b != first);
3766                         dr.setMessage(_("All documents saved."));
3767                         break;
3768                 }
3769
3770                 case LFUN_BUFFER_CLOSE:
3771                         closeBuffer();
3772                         break;
3773
3774                 case LFUN_BUFFER_CLOSE_ALL:
3775                         closeBufferAll();
3776                         break;
3777
3778                 case LFUN_TOOLBAR_TOGGLE: {
3779                         string const name = cmd.getArg(0);
3780                         if (GuiToolbar * t = toolbar(name))
3781                                 t->toggle();
3782                         break;
3783                 }
3784
3785                 case LFUN_ICON_SIZE: {
3786                         QSize size = d.iconSize(cmd.argument());
3787                         setIconSize(size);
3788                         dr.setMessage(bformat(_("Icon size set to %1$dx%2$d."),
3789                                                 size.width(), size.height()));
3790                         break;
3791                 }
3792
3793                 case LFUN_DIALOG_UPDATE: {
3794                         string const name = to_utf8(cmd.argument());
3795                         if (name == "prefs" || name == "document")
3796                                 updateDialog(name, string());
3797                         else if (name == "paragraph")
3798                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3799                         else if (currentBufferView()) {
3800                                 Inset * inset = currentBufferView()->editedInset(name);
3801                                 // Can only update a dialog connected to an existing inset
3802                                 if (inset) {
3803                                         // FIXME: get rid of this indirection; GuiView ask the inset
3804                                         // if he is kind enough to update itself...
3805                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3806                                         //FIXME: pass DispatchResult here?
3807                                         inset->dispatch(currentBufferView()->cursor(), fr);
3808                                 }
3809                         }
3810                         break;
3811                 }
3812
3813                 case LFUN_DIALOG_TOGGLE: {
3814                         FuncCode const func_code = isDialogVisible(cmd.getArg(0))
3815                                 ? LFUN_DIALOG_HIDE : LFUN_DIALOG_SHOW;
3816                         dispatch(FuncRequest(func_code, cmd.argument()), dr);
3817                         break;
3818                 }
3819
3820                 case LFUN_DIALOG_DISCONNECT_INSET:
3821                         disconnectDialog(to_utf8(cmd.argument()));
3822                         break;
3823
3824                 case LFUN_DIALOG_HIDE: {
3825                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3826                         break;
3827                 }
3828
3829                 case LFUN_DIALOG_SHOW: {
3830                         string const name = cmd.getArg(0);
3831                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3832
3833                         if (name == "character") {
3834                                 data = freefont2string();
3835                                 if (!data.empty())
3836                                         showDialog("character", data);
3837                         } else if (name == "latexlog") {
3838                                 Buffer::LogType type;
3839                                 string const logfile = doc_buffer->logName(&type);
3840                                 switch (type) {
3841                                 case Buffer::latexlog:
3842                                         data = "latex ";
3843                                         break;
3844                                 case Buffer::buildlog:
3845                                         data = "literate ";
3846                                         break;
3847                                 }
3848                                 data += Lexer::quoteString(logfile);
3849                                 showDialog("log", data);
3850                         } else if (name == "vclog") {
3851                                 string const data = "vc " +
3852                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3853                                 showDialog("log", data);
3854                         } else if (name == "symbols") {
3855                                 data = bv->cursor().getEncoding()->name();
3856                                 if (!data.empty())
3857                                         showDialog("symbols", data);
3858                         // bug 5274
3859                         } else if (name == "prefs" && isFullScreen()) {
3860                                 lfunUiToggle("fullscreen");
3861                                 showDialog("prefs", data);
3862                         } else
3863                                 showDialog(name, data);
3864                         break;
3865                 }
3866
3867                 case LFUN_MESSAGE:
3868                         dr.setMessage(cmd.argument());
3869                         break;
3870
3871                 case LFUN_UI_TOGGLE: {
3872                         string arg = cmd.getArg(0);
3873                         if (!lfunUiToggle(arg)) {
3874                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3875                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3876                         }
3877                         // Make sure the keyboard focus stays in the work area.
3878                         setFocus();
3879                         break;
3880                 }
3881
3882                 case LFUN_VIEW_SPLIT: {
3883                         LASSERT(doc_buffer, break);
3884                         string const orientation = cmd.getArg(0);
3885                         d.splitter_->setOrientation(orientation == "vertical"
3886                                 ? Qt::Vertical : Qt::Horizontal);
3887                         TabWorkArea * twa = addTabWorkArea();
3888                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3889                         setCurrentWorkArea(wa);
3890                         break;
3891                 }
3892                 case LFUN_TAB_GROUP_CLOSE:
3893                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3894                                 closeTabWorkArea(twa);
3895                                 d.current_work_area_ = 0;
3896                                 twa = d.currentTabWorkArea();
3897                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3898                                 if (twa) {
3899                                         // Make sure the work area is up to date.
3900                                         setCurrentWorkArea(twa->currentWorkArea());
3901                                 } else {
3902                                         setCurrentWorkArea(0);
3903                                 }
3904                         }
3905                         break;
3906
3907                 case LFUN_VIEW_CLOSE:
3908                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3909                                 closeWorkArea(twa->currentWorkArea());
3910                                 d.current_work_area_ = 0;
3911                                 twa = d.currentTabWorkArea();
3912                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3913                                 if (twa) {
3914                                         // Make sure the work area is up to date.
3915                                         setCurrentWorkArea(twa->currentWorkArea());
3916                                 } else {
3917                                         setCurrentWorkArea(0);
3918                                 }
3919                         }
3920                         break;
3921
3922                 case LFUN_COMPLETION_INLINE:
3923                         if (d.current_work_area_)
3924                                 d.current_work_area_->completer().showInline();
3925                         break;
3926
3927                 case LFUN_COMPLETION_POPUP:
3928                         if (d.current_work_area_)
3929                                 d.current_work_area_->completer().showPopup();
3930                         break;
3931
3932
3933                 case LFUN_COMPLETE:
3934                         if (d.current_work_area_)
3935                                 d.current_work_area_->completer().tab();
3936                         break;
3937
3938                 case LFUN_COMPLETION_CANCEL:
3939                         if (d.current_work_area_) {
3940                                 if (d.current_work_area_->completer().popupVisible())
3941                                         d.current_work_area_->completer().hidePopup();
3942                                 else
3943                                         d.current_work_area_->completer().hideInline();
3944                         }
3945                         break;
3946
3947                 case LFUN_COMPLETION_ACCEPT:
3948                         if (d.current_work_area_)
3949                                 d.current_work_area_->completer().activate();
3950                         break;
3951
3952                 case LFUN_BUFFER_ZOOM_IN:
3953                 case LFUN_BUFFER_ZOOM_OUT: {
3954                         // use a signed temp to avoid overflow
3955                         int zoom = lyxrc.zoom;
3956                         if (cmd.argument().empty()) {
3957                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3958                                         zoom += 20;
3959                                 else
3960                                         zoom -= 20;
3961                         } else
3962                                 zoom += convert<int>(cmd.argument());
3963
3964                         if (zoom < static_cast<int>(zoom_min_))
3965                                 zoom = zoom_min_;
3966                         lyxrc.zoom = zoom;
3967
3968                         dr.setMessage(bformat(_("Zoom level is now %1$d%"), lyxrc.zoom));
3969
3970                         // The global QPixmapCache is used in GuiPainter to cache text
3971                         // painting so we must reset it.
3972                         QPixmapCache::clear();
3973                         guiApp->fontLoader().update();
3974                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3975                         break;
3976                 }
3977
3978                 case LFUN_VC_REGISTER:
3979                 case LFUN_VC_RENAME:
3980                 case LFUN_VC_COPY:
3981                 case LFUN_VC_CHECK_IN:
3982                 case LFUN_VC_CHECK_OUT:
3983                 case LFUN_VC_REPO_UPDATE:
3984                 case LFUN_VC_LOCKING_TOGGLE:
3985                 case LFUN_VC_REVERT:
3986                 case LFUN_VC_UNDO_LAST:
3987                 case LFUN_VC_COMMAND:
3988                 case LFUN_VC_COMPARE:
3989                         dispatchVC(cmd, dr);
3990                         break;
3991
3992                 case LFUN_SERVER_GOTO_FILE_ROW:
3993                         if(goToFileRow(to_utf8(cmd.argument())))
3994                                 dr.screenUpdate(Update::Force | Update::FitCursor);
3995                         break;
3996
3997                 case LFUN_LYX_ACTIVATE:
3998                         activateWindow();
3999                         break;
4000
4001                 case LFUN_FORWARD_SEARCH: {
4002                 // it seems safe to assume we have a document buffer, since
4003                 // getStatus wants one.
4004                 // coverity[FORWARD_NULL]
4005                         Buffer const * doc_master = doc_buffer->masterBuffer();
4006                         FileName const path(doc_master->temppath());
4007                         string const texname = doc_master->isChild(doc_buffer)
4008                                 ? DocFileName(changeExtension(
4009                                         doc_buffer->absFileName(),
4010                                                 "tex")).mangledFileName()
4011                                 : doc_buffer->latexName();
4012                         string const fulltexname =
4013                                 support::makeAbsPath(texname, doc_master->temppath()).absFileName();
4014                         string const mastername =
4015                                 removeExtension(doc_master->latexName());
4016                         FileName const dviname(addName(path.absFileName(),
4017                                         addExtension(mastername, "dvi")));
4018                         FileName const pdfname(addName(path.absFileName(),
4019                                         addExtension(mastername, "pdf")));
4020                         bool const have_dvi = dviname.exists();
4021                         bool const have_pdf = pdfname.exists();
4022                         if (!have_dvi && !have_pdf) {
4023                                 dr.setMessage(_("Please, preview the document first."));
4024                                 break;
4025                         }
4026                         string outname = dviname.onlyFileName();
4027                         string command = lyxrc.forward_search_dvi;
4028                         if (!have_dvi || (have_pdf &&
4029                             pdfname.lastModified() > dviname.lastModified())) {
4030                                 outname = pdfname.onlyFileName();
4031                                 command = lyxrc.forward_search_pdf;
4032                         }
4033
4034                         DocIterator cur = bv->cursor();
4035                         int row = doc_buffer->texrow().rowFromDocIterator(cur).first;
4036                         LYXERR(Debug::ACTION, "Forward search: row:" << row
4037                                    << " cur:" << cur);
4038                         if (row == -1 || command.empty()) {
4039                                 dr.setMessage(_("Couldn't proceed."));
4040                                 break;
4041                         }
4042                         string texrow = convert<string>(row);
4043
4044                         command = subst(command, "$$n", texrow);
4045                         command = subst(command, "$$f", fulltexname);
4046                         command = subst(command, "$$t", texname);
4047                         command = subst(command, "$$o", outname);
4048
4049                         PathChanger p(path);
4050                         Systemcall one;
4051                         one.startscript(Systemcall::DontWait, command);
4052                         break;
4053                 }
4054
4055                 case LFUN_SPELLING_CONTINUOUSLY:
4056                         lyxrc.spellcheck_continuously = !lyxrc.spellcheck_continuously;
4057                         dr.screenUpdate(Update::Force);
4058                         break;
4059
4060                 default:
4061                         // The LFUN must be for one of BufferView, Buffer or Cursor;
4062                         // let's try that:
4063                         dispatchToBufferView(cmd, dr);
4064                         break;
4065         }
4066
4067         // Part of automatic menu appearance feature.
4068         if (isFullScreen()) {
4069                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
4070                         menuBar()->hide();
4071         }
4072
4073         // Need to update bv because many LFUNs here might have destroyed it
4074         bv = currentBufferView();
4075
4076         // Clear non-empty selections
4077         // (e.g. from a "char-forward-select" followed by "char-backward-select")
4078         if (bv) {
4079                 Cursor & cur = bv->cursor();
4080                 if ((cur.selection() && cur.selBegin() == cur.selEnd())) {
4081                         cur.clearSelection();
4082                 }
4083         }
4084 }
4085
4086
4087 bool GuiView::lfunUiToggle(string const & ui_component)
4088 {
4089         if (ui_component == "scrollbar") {
4090                 // hide() is of no help
4091                 if (d.current_work_area_->verticalScrollBarPolicy() ==
4092                         Qt::ScrollBarAlwaysOff)
4093
4094                         d.current_work_area_->setVerticalScrollBarPolicy(
4095                                 Qt::ScrollBarAsNeeded);
4096                 else
4097                         d.current_work_area_->setVerticalScrollBarPolicy(
4098                                 Qt::ScrollBarAlwaysOff);
4099         } else if (ui_component == "statusbar") {
4100                 statusBar()->setVisible(!statusBar()->isVisible());
4101         } else if (ui_component == "menubar") {
4102                 menuBar()->setVisible(!menuBar()->isVisible());
4103         } else
4104         if (ui_component == "frame") {
4105                 int l, t, r, b;
4106                 getContentsMargins(&l, &t, &r, &b);
4107                 //are the frames in default state?
4108                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
4109                 if (l == 0) {
4110                         setContentsMargins(-2, -2, -2, -2);
4111                 } else {
4112                         setContentsMargins(0, 0, 0, 0);
4113                 }
4114         } else
4115         if (ui_component == "fullscreen") {
4116                 toggleFullScreen();
4117         } else
4118                 return false;
4119         return true;
4120 }
4121
4122
4123 void GuiView::toggleFullScreen()
4124 {
4125         if (isFullScreen()) {
4126                 for (int i = 0; i != d.splitter_->count(); ++i)
4127                         d.tabWorkArea(i)->setFullScreen(false);
4128                 setContentsMargins(0, 0, 0, 0);
4129                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4130                 restoreLayout();
4131                 menuBar()->show();
4132                 statusBar()->show();
4133         } else {
4134                 // bug 5274
4135                 hideDialogs("prefs", 0);
4136                 for (int i = 0; i != d.splitter_->count(); ++i)
4137                         d.tabWorkArea(i)->setFullScreen(true);
4138                 setContentsMargins(-2, -2, -2, -2);
4139                 saveLayout();
4140                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4141                 if (lyxrc.full_screen_statusbar)
4142                         statusBar()->hide();
4143                 if (lyxrc.full_screen_menubar)
4144                         menuBar()->hide();
4145                 if (lyxrc.full_screen_toolbars) {
4146                         ToolbarMap::iterator end = d.toolbars_.end();
4147                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
4148                                 it->second->hide();
4149                 }
4150         }
4151
4152         // give dialogs like the TOC a chance to adapt
4153         updateDialogs();
4154 }
4155
4156
4157 Buffer const * GuiView::updateInset(Inset const * inset)
4158 {
4159         if (!inset)
4160                 return 0;
4161
4162         Buffer const * inset_buffer = &(inset->buffer());
4163
4164         for (int i = 0; i != d.splitter_->count(); ++i) {
4165                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
4166                 if (!wa)
4167                         continue;
4168                 Buffer const * buffer = &(wa->bufferView().buffer());
4169                 if (inset_buffer == buffer)
4170                         wa->scheduleRedraw();
4171         }
4172         return inset_buffer;
4173 }
4174
4175
4176 void GuiView::restartCursor()
4177 {
4178         /* When we move around, or type, it's nice to be able to see
4179          * the cursor immediately after the keypress.
4180          */
4181         if (d.current_work_area_)
4182                 d.current_work_area_->startBlinkingCursor();
4183
4184         // Take this occasion to update the other GUI elements.
4185         updateDialogs();
4186         updateStatusBar();
4187 }
4188
4189
4190 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
4191 {
4192         if (d.current_work_area_)
4193                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
4194 }
4195
4196 namespace {
4197
4198 // This list should be kept in sync with the list of insets in
4199 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
4200 // dialog should have the same name as the inset.
4201 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
4202 // docs in LyXAction.cpp.
4203
4204 char const * const dialognames[] = {
4205
4206 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
4207 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
4208 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
4209 "href", "include", "index", "index_print", "info", "listings", "label", "line",
4210 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
4211 "nomencl_print", "note", "paragraph", "phantom", "prefs", "ref",
4212 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
4213 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
4214
4215 char const * const * const end_dialognames =
4216         dialognames + (sizeof(dialognames) / sizeof(char *));
4217
4218 class cmpCStr {
4219 public:
4220         cmpCStr(char const * name) : name_(name) {}
4221         bool operator()(char const * other) {
4222                 return strcmp(other, name_) == 0;
4223         }
4224 private:
4225         char const * name_;
4226 };
4227
4228
4229 bool isValidName(string const & name)
4230 {
4231         return find_if(dialognames, end_dialognames,
4232                                 cmpCStr(name.c_str())) != end_dialognames;
4233 }
4234
4235 } // namespace anon
4236
4237
4238 void GuiView::resetDialogs()
4239 {
4240         // Make sure that no LFUN uses any GuiView.
4241         guiApp->setCurrentView(0);
4242         saveLayout();
4243         saveUISettings();
4244         menuBar()->clear();
4245         constructToolbars();
4246         guiApp->menus().fillMenuBar(menuBar(), this, false);
4247         d.layout_->updateContents(true);
4248         // Now update controls with current buffer.
4249         guiApp->setCurrentView(this);
4250         restoreLayout();
4251         restartCursor();
4252 }
4253
4254
4255 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
4256 {
4257         if (!isValidName(name))
4258                 return 0;
4259
4260         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
4261
4262         if (it != d.dialogs_.end()) {
4263                 if (hide_it)
4264                         it->second->hideView();
4265                 return it->second.get();
4266         }
4267
4268         Dialog * dialog = build(name);
4269         d.dialogs_[name].reset(dialog);
4270         if (lyxrc.allow_geometry_session)
4271                 dialog->restoreSession();
4272         if (hide_it)
4273                 dialog->hideView();
4274         return dialog;
4275 }
4276
4277
4278 void GuiView::showDialog(string const & name, string const & data,
4279         Inset * inset)
4280 {
4281         triggerShowDialog(toqstr(name), toqstr(data), inset);
4282 }
4283
4284
4285 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
4286         Inset * inset)
4287 {
4288         if (d.in_show_)
4289                 return;
4290
4291         const string name = fromqstr(qname);
4292         const string data = fromqstr(qdata);
4293
4294         d.in_show_ = true;
4295         try {
4296                 Dialog * dialog = findOrBuild(name, false);
4297                 if (dialog) {
4298                         bool const visible = dialog->isVisibleView();
4299                         dialog->showData(data);
4300                         if (inset && currentBufferView())
4301                                 currentBufferView()->editInset(name, inset);
4302                         // We only set the focus to the new dialog if it was not yet
4303                         // visible in order not to change the existing previous behaviour
4304                         if (visible) {
4305                                 // activateWindow is needed for floating dockviews
4306                                 dialog->asQWidget()->raise();
4307                                 dialog->asQWidget()->activateWindow();
4308                                 dialog->asQWidget()->setFocus();
4309                         }
4310                 }
4311         }
4312         catch (ExceptionMessage const & ex) {
4313                 d.in_show_ = false;
4314                 throw ex;
4315         }
4316         d.in_show_ = false;
4317 }
4318
4319
4320 bool GuiView::isDialogVisible(string const & name) const
4321 {
4322         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4323         if (it == d.dialogs_.end())
4324                 return false;
4325         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
4326 }
4327
4328
4329 void GuiView::hideDialog(string const & name, Inset * inset)
4330 {
4331         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4332         if (it == d.dialogs_.end())
4333                 return;
4334
4335         if (inset) {
4336                 if (!currentBufferView())
4337                         return;
4338                 if (inset != currentBufferView()->editedInset(name))
4339                         return;
4340         }
4341
4342         Dialog * const dialog = it->second.get();
4343         if (dialog->isVisibleView())
4344                 dialog->hideView();
4345         if (currentBufferView())
4346                 currentBufferView()->editInset(name, 0);
4347 }
4348
4349
4350 void GuiView::disconnectDialog(string const & name)
4351 {
4352         if (!isValidName(name))
4353                 return;
4354         if (currentBufferView())
4355                 currentBufferView()->editInset(name, 0);
4356 }
4357
4358
4359 void GuiView::hideAll() const
4360 {
4361         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4362         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4363
4364         for(; it != end; ++it)
4365                 it->second->hideView();
4366 }
4367
4368
4369 void GuiView::updateDialogs()
4370 {
4371         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4372         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4373
4374         for(; it != end; ++it) {
4375                 Dialog * dialog = it->second.get();
4376                 if (dialog) {
4377                         if (dialog->needBufferOpen() && !documentBufferView())
4378                                 hideDialog(fromqstr(dialog->name()), 0);
4379                         else if (dialog->isVisibleView())
4380                                 dialog->checkStatus();
4381                 }
4382         }
4383         updateToolbars();
4384         updateLayoutList();
4385 }
4386
4387 Dialog * createDialog(GuiView & lv, string const & name);
4388
4389 // will be replaced by a proper factory...
4390 Dialog * createGuiAbout(GuiView & lv);
4391 Dialog * createGuiBibtex(GuiView & lv);
4392 Dialog * createGuiChanges(GuiView & lv);
4393 Dialog * createGuiCharacter(GuiView & lv);
4394 Dialog * createGuiCitation(GuiView & lv);
4395 Dialog * createGuiCompare(GuiView & lv);
4396 Dialog * createGuiCompareHistory(GuiView & lv);
4397 Dialog * createGuiDelimiter(GuiView & lv);
4398 Dialog * createGuiDocument(GuiView & lv);
4399 Dialog * createGuiErrorList(GuiView & lv);
4400 Dialog * createGuiExternal(GuiView & lv);
4401 Dialog * createGuiGraphics(GuiView & lv);
4402 Dialog * createGuiInclude(GuiView & lv);
4403 Dialog * createGuiIndex(GuiView & lv);
4404 Dialog * createGuiListings(GuiView & lv);
4405 Dialog * createGuiLog(GuiView & lv);
4406 Dialog * createGuiMathMatrix(GuiView & lv);
4407 Dialog * createGuiNote(GuiView & lv);
4408 Dialog * createGuiParagraph(GuiView & lv);
4409 Dialog * createGuiPhantom(GuiView & lv);
4410 Dialog * createGuiPreferences(GuiView & lv);
4411 Dialog * createGuiPrint(GuiView & lv);
4412 Dialog * createGuiPrintindex(GuiView & lv);
4413 Dialog * createGuiRef(GuiView & lv);
4414 Dialog * createGuiSearch(GuiView & lv);
4415 Dialog * createGuiSearchAdv(GuiView & lv);
4416 Dialog * createGuiSendTo(GuiView & lv);
4417 Dialog * createGuiShowFile(GuiView & lv);
4418 Dialog * createGuiSpellchecker(GuiView & lv);
4419 Dialog * createGuiSymbols(GuiView & lv);
4420 Dialog * createGuiTabularCreate(GuiView & lv);
4421 Dialog * createGuiTexInfo(GuiView & lv);
4422 Dialog * createGuiToc(GuiView & lv);
4423 Dialog * createGuiThesaurus(GuiView & lv);
4424 Dialog * createGuiViewSource(GuiView & lv);
4425 Dialog * createGuiWrap(GuiView & lv);
4426 Dialog * createGuiProgressView(GuiView & lv);
4427
4428
4429
4430 Dialog * GuiView::build(string const & name)
4431 {
4432         LASSERT(isValidName(name), return 0);
4433
4434         Dialog * dialog = createDialog(*this, name);
4435         if (dialog)
4436                 return dialog;
4437
4438         if (name == "aboutlyx")
4439                 return createGuiAbout(*this);
4440         if (name == "bibtex")
4441                 return createGuiBibtex(*this);
4442         if (name == "changes")
4443                 return createGuiChanges(*this);
4444         if (name == "character")
4445                 return createGuiCharacter(*this);
4446         if (name == "citation")
4447                 return createGuiCitation(*this);
4448         if (name == "compare")
4449                 return createGuiCompare(*this);
4450         if (name == "comparehistory")
4451                 return createGuiCompareHistory(*this);
4452         if (name == "document")
4453                 return createGuiDocument(*this);
4454         if (name == "errorlist")
4455                 return createGuiErrorList(*this);
4456         if (name == "external")
4457                 return createGuiExternal(*this);
4458         if (name == "file")
4459                 return createGuiShowFile(*this);
4460         if (name == "findreplace")
4461                 return createGuiSearch(*this);
4462         if (name == "findreplaceadv")
4463                 return createGuiSearchAdv(*this);
4464         if (name == "graphics")
4465                 return createGuiGraphics(*this);
4466         if (name == "include")
4467                 return createGuiInclude(*this);
4468         if (name == "index")
4469                 return createGuiIndex(*this);
4470         if (name == "index_print")
4471                 return createGuiPrintindex(*this);
4472         if (name == "listings")
4473                 return createGuiListings(*this);
4474         if (name == "log")
4475                 return createGuiLog(*this);
4476         if (name == "mathdelimiter")
4477                 return createGuiDelimiter(*this);
4478         if (name == "mathmatrix")
4479                 return createGuiMathMatrix(*this);
4480         if (name == "note")
4481                 return createGuiNote(*this);
4482         if (name == "paragraph")
4483                 return createGuiParagraph(*this);
4484         if (name == "phantom")
4485                 return createGuiPhantom(*this);
4486         if (name == "prefs")
4487                 return createGuiPreferences(*this);
4488         if (name == "ref")
4489                 return createGuiRef(*this);
4490         if (name == "sendto")
4491                 return createGuiSendTo(*this);
4492         if (name == "spellchecker")
4493                 return createGuiSpellchecker(*this);
4494         if (name == "symbols")
4495                 return createGuiSymbols(*this);
4496         if (name == "tabularcreate")
4497                 return createGuiTabularCreate(*this);
4498         if (name == "texinfo")
4499                 return createGuiTexInfo(*this);
4500         if (name == "thesaurus")
4501                 return createGuiThesaurus(*this);
4502         if (name == "toc")
4503                 return createGuiToc(*this);
4504         if (name == "view-source")
4505                 return createGuiViewSource(*this);
4506         if (name == "wrap")
4507                 return createGuiWrap(*this);
4508         if (name == "progress")
4509                 return createGuiProgressView(*this);
4510
4511         return 0;
4512 }
4513
4514
4515 } // namespace frontend
4516 } // namespace lyx
4517
4518 #include "moc_GuiView.cpp"