src/frontends/qt4/GuiView.cpp

   1 /**
   2  * \file GuiView.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  * \author Peter Kümmel
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiView.h"
  17
  18 #include "Dialog.h"
  19 #include "DispatchResult.h"
  20 #include "FileDialog.h"
  21 #include "FontLoader.h"
  22 #include "GuiApplication.h"
  23 #include "GuiCommandBuffer.h"
  24 #include "GuiCompleter.h"
  25 #include "GuiKeySymbol.h"
  26 #include "GuiToc.h"
  27 #include "GuiToolbar.h"
  28 #include "GuiWorkArea.h"
  29 #include "GuiProgress.h"
  30 #include "LayoutBox.h"
  31 #include "Menus.h"
  32 #include "TocModel.h"
  33
  34 #include "qt_helpers.h"
  35 #include "support/filetools.h"
  36
  37 #include "frontends/alert.h"
  38 #include "frontends/KeySymbol.h"
  39
  40 #include "buffer_funcs.h"
  41 #include "Buffer.h"
  42 #include "BufferList.h"
  43 #include "BufferParams.h"
  44 #include "BufferView.h"
  45 #include "Compare.h"
  46 #include "Converter.h"
  47 #include "Cursor.h"
  48 #include "CutAndPaste.h"
  49 #include "Encoding.h"
  50 #include "ErrorList.h"
  51 #include "Format.h"
  52 #include "FuncStatus.h"
  53 #include "FuncRequest.h"
  54 #include "Intl.h"
  55 #include "Layout.h"
  56 #include "Lexer.h"
  57 #include "LyXAction.h"
  58 #include "LyX.h"
  59 #include "LyXRC.h"
  60 #include "LyXVC.h"
  61 #include "Paragraph.h"
  62 #include "SpellChecker.h"
  63 #include "Session.h"
  64 #include "TexRow.h"
  65 #include "TextClass.h"
  66 #include "Text.h"
  67 #include "Toolbars.h"
  68 #include "version.h"
  69
  70 #include "support/convert.h"
  71 #include "support/debug.h"
  72 #include "support/ExceptionMessage.h"
  73 #include "support/FileName.h"
  74 #include "support/filetools.h"
  75 #include "support/gettext.h"
  76 #include "support/filetools.h"
  77 #include "support/ForkedCalls.h"
  78 #include "support/lassert.h"
  79 #include "support/lstrings.h"
  80 #include "support/os.h"
  81 #include "support/Package.h"
  82 #include "support/PathChanger.h"
  83 #include "support/Systemcall.h"
  84 #include "support/Timeout.h"
  85 #include "support/ProgressInterface.h"
  86
  87 #include <QAction>
  88 #include <QApplication>
  89 #include <QCloseEvent>
  90 #include <QDebug>
  91 #include <QDesktopWidget>
  92 #include <QDragEnterEvent>
  93 #include <QDropEvent>
  94 #include <QFuture>
  95 #include <QFutureWatcher>
  96 #include <QLabel>
  97 #include <QList>
  98 #include <QMenu>
  99 #include <QMenuBar>
 100 #include <QMimeData>
 101 #include <QMovie>
 102 #include <QPainter>
 103 #include <QPixmap>
 104 #include <QPixmapCache>
 105 #include <QPoint>
 106 #include <QPushButton>
 107 #include <QScrollBar>
 108 #include <QSettings>
 109 #include <QShowEvent>
 110 #include <QSplitter>
 111 #include <QStackedWidget>
 112 #include <QStatusBar>
 113 #if QT_VERSION >= 0x050000
 114 #include <QSvgRenderer>
 115 #endif
 116 #include <QtConcurrentRun>
 117 #include <QTime>
 118 #include <QTimer>
 119 #include <QToolBar>
 120 #include <QUrl>
 121
 122
 123
 124 // sync with GuiAlert.cpp
 125 #define EXPORT_in_THREAD 1
 126
 127
 128 #include "support/bind.h"
 129
 130 #include <sstream>
 131
 132 #ifdef HAVE_SYS_TIME_H
 133 # include <sys/time.h>
 134 #endif
 135 #ifdef HAVE_UNISTD_H
 136 # include <unistd.h>
 137 #endif
 138
 139
 140 using namespace std;
 141 using namespace lyx::support;
 142
 143 namespace lyx {
 144
 145 using support::addExtension;
 146 using support::changeExtension;
 147 using support::removeExtension;
 148
 149 namespace frontend {
 150
 151 namespace {
 152
 153 class BackgroundWidget : public QWidget
 154 {
 155 public:
 156         BackgroundWidget(int width, int height)
 157                 : width_(width), height_(height)
 158         {
 159                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 160                 if (!lyxrc.show_banner)
 161                         return;
 162                 /// The text to be written on top of the pixmap
 163                 QString const text = lyx_version ?
 164                         qt_("version ") + lyx_version : qt_("unknown version");
 165 #if QT_VERSION >= 0x050000
 166                 QString imagedir = "images/";
 167                 FileName fname = imageLibFileSearch(imagedir, "banner", "svgz");
 168                 QSvgRenderer svgRenderer(toqstr(fname.absFileName()));
 169                 if (svgRenderer.isValid()) {
 170                         splash_ = QPixmap(splashSize());
 171                         QPainter painter(&splash_);
 172                         svgRenderer.render(&painter);
 173                         splash_.setDevicePixelRatio(pixelRatio());
 174                 } else {
 175                         splash_ = getPixmap("images/", "banner", "png");
 176                 }
 177 #else
 178                 splash_ = getPixmap("images/", "banner", "svgz,png");
 179 #endif
 180
 181                 QPainter pain(&splash_);
 182                 pain.setPen(QColor(0, 0, 0));
 183                 qreal const fsize = fontSize();
 184                 QPointF const position = textPosition();
 185                 LYXERR(Debug::GUI,
 186                         "widget pixel ratio: " << pixelRatio() <<
 187                         " splash pixel ratio: " << splashPixelRatio() <<
 188                         " version text size,position: " << fsize << "@" << position.x() << "+" << position.y());
 189                 QFont font;
 190                 // The font used to display the version info
 191                 font.setStyleHint(QFont::SansSerif);
 192                 font.setWeight(QFont::Bold);
 193                 font.setPointSizeF(fsize);
 194                 pain.setFont(font);
 195                 pain.drawText(position, text);
 196                 setFocusPolicy(Qt::StrongFocus);
 197         }
 198
 199         void paintEvent(QPaintEvent *)
 200         {
 201                 int const w = width_;
 202                 int const h = height_;
 203                 int const x = (width() - w) / 2;
 204                 int const y = (height() - h) / 2;
 205                 LYXERR(Debug::GUI,
 206                         "widget pixel ratio: " << pixelRatio() <<
 207                         " splash pixel ratio: " << splashPixelRatio() <<
 208                         " paint pixmap: " << w << "x" << h << "@" << x << "+" << y);
 209                 QPainter pain(this);
 210                 pain.drawPixmap(x, y, w, h, splash_);
 211         }
 212
 213         void keyPressEvent(QKeyEvent * ev)
 214         {
 215                 KeySymbol sym;
 216                 setKeySymbol(&sym, ev);
 217                 if (sym.isOK()) {
 218                         guiApp->processKeySym(sym, q_key_state(ev->modifiers()));
 219                         ev->accept();
 220                 } else {
 221                         ev->ignore();
 222                 }
 223         }
 224
 225 private:
 226         QPixmap splash_;
 227         int const width_;
 228         int const height_;
 229
 230         /// Current ratio between physical pixels and device-independent pixels
 231         double pixelRatio() const {
 232 #if QT_VERSION >= 0x050000
 233                 return devicePixelRatio();
 234 #else
 235                 return 1.0;
 236 #endif
 237         }
 238
 239         qreal fontSize() const {
 240                 return toqstr(lyxrc.font_sizes[FONT_SIZE_NORMAL]).toDouble();
 241         }
 242
 243         QPointF textPosition() const {
 244                 return QPointF(width_/2 - 18, height_/2 + 45);
 245         }
 246
 247         QSize splashSize() const {
 248                 return QSize(
 249                         static_cast<unsigned int>(width_ * pixelRatio()),
 250                         static_cast<unsigned int>(height_ * pixelRatio()));
 251         }
 252
 253         /// Ratio between physical pixels and device-independent pixels of splash image
 254         double splashPixelRatio() const {
 255 #if QT_VERSION >= 0x050000
 256                 return splash_.devicePixelRatio();
 257 #else
 258                 return 1.0;
 259 #endif
 260         }
 261 };
 262
 263
 264 /// Toolbar store providing access to individual toolbars by name.
 265 typedef map<string, GuiToolbar *> ToolbarMap;
 266
 267 typedef shared_ptr<Dialog> DialogPtr;
 268
 269 } // namespace anon
 270
 271
 272 class GuiView::GuiViewPrivate
 273 {
 274         /// noncopyable
 275         GuiViewPrivate(GuiViewPrivate const &);
 276         void operator=(GuiViewPrivate const &);
 277 public:
 278         GuiViewPrivate(GuiView * gv)
 279                 : gv_(gv), current_work_area_(0), current_main_work_area_(0),
 280                 layout_(0), autosave_timeout_(5000),
 281                 in_show_(false)
 282         {
 283                 // hardcode here the platform specific icon size
 284                 smallIconSize = 16;  // scaling problems
 285                 normalIconSize = 20; // ok, default if iconsize.png is missing
 286                 bigIconSize = 26;       // better for some math icons
 287                 hugeIconSize = 32;      // better for hires displays
 288                 giantIconSize = 48;
 289
 290                 // if it exists, use width of iconsize.png as normal size
 291                 QString const dir = toqstr(addPath("images", lyxrc.icon_set));
 292                 FileName const fn = lyx::libFileSearch(dir, "iconsize.png");
 293                 if (!fn.empty()) {
 294                         QImage image(toqstr(fn.absFileName()));
 295                         if (image.width() < int(smallIconSize))
 296                                 normalIconSize = smallIconSize;
 297                         else if (image.width() > int(giantIconSize))
 298                                 normalIconSize = giantIconSize;
 299                         else
 300                                 normalIconSize = image.width();
 301                 }
 302
 303                 splitter_ = new QSplitter;
 304                 bg_widget_ = new BackgroundWidget(400, 250);
 305                 stack_widget_ = new QStackedWidget;
 306                 stack_widget_->addWidget(bg_widget_);
 307                 stack_widget_->addWidget(splitter_);
 308                 setBackground();
 309
 310                 // TODO cleanup, remove the singleton, handle multiple Windows?
 311                 progress_ = ProgressInterface::instance();
 312                 if (!dynamic_cast<GuiProgress*>(progress_)) {
 313                         progress_ = new GuiProgress;  // TODO who deletes it
 314                         ProgressInterface::setInstance(progress_);
 315                 }
 316                 QObject::connect(
 317                                 dynamic_cast<GuiProgress*>(progress_),
 318                                 SIGNAL(updateStatusBarMessage(QString const&)),
 319                                 gv, SLOT(updateStatusBarMessage(QString const&)));
 320                 QObject::connect(
 321                                 dynamic_cast<GuiProgress*>(progress_),
 322                                 SIGNAL(clearMessageText()),
 323                                 gv, SLOT(clearMessageText()));
 324         }
 325
 326         ~GuiViewPrivate()
 327         {
 328                 delete splitter_;
 329                 delete bg_widget_;
 330                 delete stack_widget_;
 331         }
 332
 333         QMenu * toolBarPopup(GuiView * parent)
 334         {
 335                 // FIXME: translation
 336                 QMenu * menu = new QMenu(parent);
 337                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 338
 339                 QAction * smallIcons = new QAction(iconSizeGroup);
 340                 smallIcons->setText(qt_("Small-sized icons"));
 341                 smallIcons->setCheckable(true);
 342                 QObject::connect(smallIcons, SIGNAL(triggered()),
 343                         parent, SLOT(smallSizedIcons()));
 344                 menu->addAction(smallIcons);
 345
 346                 QAction * normalIcons = new QAction(iconSizeGroup);
 347                 normalIcons->setText(qt_("Normal-sized icons"));
 348                 normalIcons->setCheckable(true);
 349                 QObject::connect(normalIcons, SIGNAL(triggered()),
 350                         parent, SLOT(normalSizedIcons()));
 351                 menu->addAction(normalIcons);
 352
 353                 QAction * bigIcons = new QAction(iconSizeGroup);
 354                 bigIcons->setText(qt_("Big-sized icons"));
 355                 bigIcons->setCheckable(true);
 356                 QObject::connect(bigIcons, SIGNAL(triggered()),
 357                         parent, SLOT(bigSizedIcons()));
 358                 menu->addAction(bigIcons);
 359
 360                 QAction * hugeIcons = new QAction(iconSizeGroup);
 361                 hugeIcons->setText(qt_("Huge-sized icons"));
 362                 hugeIcons->setCheckable(true);
 363                 QObject::connect(hugeIcons, SIGNAL(triggered()),
 364                         parent, SLOT(hugeSizedIcons()));
 365                 menu->addAction(hugeIcons);
 366
 367                 QAction * giantIcons = new QAction(iconSizeGroup);
 368                 giantIcons->setText(qt_("Giant-sized icons"));
 369                 giantIcons->setCheckable(true);
 370                 QObject::connect(giantIcons, SIGNAL(triggered()),
 371                         parent, SLOT(giantSizedIcons()));
 372                 menu->addAction(giantIcons);
 373
 374                 unsigned int cur = parent->iconSize().width();
 375                 if ( cur == parent->d.smallIconSize)
 376                         smallIcons->setChecked(true);
 377                 else if (cur == parent->d.normalIconSize)
 378                         normalIcons->setChecked(true);
 379                 else if (cur == parent->d.bigIconSize)
 380                         bigIcons->setChecked(true);
 381                 else if (cur == parent->d.hugeIconSize)
 382                         hugeIcons->setChecked(true);
 383                 else if (cur == parent->d.giantIconSize)
 384                         giantIcons->setChecked(true);
 385
 386                 return menu;
 387         }
 388
 389         void setBackground()
 390         {
 391                 stack_widget_->setCurrentWidget(bg_widget_);
 392                 bg_widget_->setUpdatesEnabled(true);
 393                 bg_widget_->setFocus();
 394         }
 395
 396         int tabWorkAreaCount()
 397         {
 398                 return splitter_->count();
 399         }
 400
 401         TabWorkArea * tabWorkArea(int i)
 402         {
 403                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 404         }
 405
 406         TabWorkArea * currentTabWorkArea()
 407         {
 408                 int areas = tabWorkAreaCount();
 409                 if (areas == 1)
 410                         // The first TabWorkArea is always the first one, if any.
 411                         return tabWorkArea(0);
 412
 413                 for (int i = 0; i != areas;  ++i) {
 414                         TabWorkArea * twa = tabWorkArea(i);
 415                         if (current_main_work_area_ == twa->currentWorkArea())
 416                                 return twa;
 417                 }
 418
 419                 // None has the focus so we just take the first one.
 420                 return tabWorkArea(0);
 421         }
 422
 423         int countWorkAreasOf(Buffer & buf)
 424         {
 425                 int areas = tabWorkAreaCount();
 426                 int count = 0;
 427                 for (int i = 0; i != areas;  ++i) {
 428                         TabWorkArea * twa = tabWorkArea(i);
 429                         if (twa->workArea(buf))
 430                                 ++count;
 431                 }
 432                 return count;
 433         }
 434
 435         void setPreviewFuture(QFuture<Buffer::ExportStatus> const & f)
 436         {
 437                 if (processing_thread_watcher_.isRunning()) {
 438                         // we prefer to cancel this preview in order to keep a snappy
 439                         // interface.
 440                         return;
 441                 }
 442                 processing_thread_watcher_.setFuture(f);
 443         }
 444
 445 public:
 446         GuiView * gv_;
 447         GuiWorkArea * current_work_area_;
 448         GuiWorkArea * current_main_work_area_;
 449         QSplitter * splitter_;
 450         QStackedWidget * stack_widget_;
 451         BackgroundWidget * bg_widget_;
 452         /// view's toolbars
 453         ToolbarMap toolbars_;
 454         ProgressInterface* progress_;
 455         /// The main layout box.
 456         /**
 457          * \warning Don't Delete! The layout box is actually owned by
 458          * whichever toolbar contains it. All the GuiView class needs is a
 459          * means of accessing it.
 460          *
 461          * FIXME: replace that with a proper model so that we are not limited
 462          * to only one dialog.
 463          */
 464         LayoutBox * layout_;
 465
 466         ///
 467         map<string, DialogPtr> dialogs_;
 468
 469         unsigned int smallIconSize;
 470         unsigned int normalIconSize;
 471         unsigned int bigIconSize;
 472         unsigned int hugeIconSize;
 473         unsigned int giantIconSize;
 474         ///
 475         QTimer statusbar_timer_;
 476         /// auto-saving of buffers
 477         Timeout autosave_timeout_;
 478         /// flag against a race condition due to multiclicks, see bug #1119
 479         bool in_show_;
 480
 481         ///
 482         TocModels toc_models_;
 483
 484         ///
 485         QFutureWatcher<docstring> autosave_watcher_;
 486         QFutureWatcher<Buffer::ExportStatus> processing_thread_watcher_;
 487         ///
 488         string last_export_format;
 489         string processing_format;
 490
 491         static QSet<Buffer const *> busyBuffers;
 492         static Buffer::ExportStatus previewAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 493         static Buffer::ExportStatus exportAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 494         static Buffer::ExportStatus compileAndDestroy(Buffer const * orig, Buffer * buffer, string const & format);
 495         static docstring autosaveAndDestroy(Buffer const * orig, Buffer * buffer);
 496
 497         template<class T>
 498         static Buffer::ExportStatus runAndDestroy(const T& func, Buffer const * orig, Buffer * buffer, string const & format);
 499
 500         // TODO syncFunc/previewFunc: use bind
 501         bool asyncBufferProcessing(string const & argument,
 502                                    Buffer const * used_buffer,
 503                                    docstring const & msg,
 504                                    Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
 505                                    Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
 506                                    Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const);
 507
 508         QVector<GuiWorkArea*> guiWorkAreas();
 509 };
 510
 511 QSet<Buffer const *> GuiView::GuiViewPrivate::busyBuffers;
 512
 513
 514 GuiView::GuiView(int id)
 515         : d(*new GuiViewPrivate(this)), id_(id), closing_(false), busy_(0),
 516           command_execute_(false), minibuffer_focus_(false)
 517 {
 518         // GuiToolbars *must* be initialised before the menu bar.
 519         normalSizedIcons(); // at least on Mac the default is 32 otherwise, which is huge
 520         constructToolbars();
 521
 522         // set ourself as the current view. This is needed for the menu bar
 523         // filling, at least for the static special menu item on Mac. Otherwise
 524         // they are greyed out.
 525         guiApp->setCurrentView(this);
 526
 527         // Fill up the menu bar.
 528         guiApp->menus().fillMenuBar(menuBar(), this, true);
 529
 530         setCentralWidget(d.stack_widget_);
 531
 532         // Start autosave timer
 533         if (lyxrc.autosave) {
 534                 d.autosave_timeout_.timeout.connect(bind(&GuiView::autoSave, this));
 535                 d.autosave_timeout_.setTimeout(lyxrc.autosave * 1000);
 536                 d.autosave_timeout_.start();
 537         }
 538         connect(&d.statusbar_timer_, SIGNAL(timeout()),
 539                 this, SLOT(clearMessage()));
 540
 541         // We don't want to keep the window in memory if it is closed.
 542         setAttribute(Qt::WA_DeleteOnClose, true);
 543
 544 #if !(defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)) && !defined(Q_OS_MAC)
 545         // QIcon::fromTheme was introduced in Qt 4.6
 546 #if (QT_VERSION >= 0x040600)
 547         // assign an icon to main form. We do not do it under Qt/Win or Qt/Mac,
 548         // since the icon is provided in the application bundle. We use a themed
 549         // version when available and use the bundled one as fallback.
 550         setWindowIcon(QIcon::fromTheme("lyx", getPixmap("images/", "lyx", "svg,png")));
 551 #else
 552         setWindowIcon(getPixmap("images/", "lyx", "svg,png"));
 553 #endif
 554
 555 #endif
 556         resetWindowTitleAndIconText();
 557
 558         // use tabbed dock area for multiple docks
 559         // (such as "source" and "messages")
 560         setDockOptions(QMainWindow::ForceTabbedDocks);
 561
 562         // For Drag&Drop.
 563         setAcceptDrops(true);
 564
 565         // add busy indicator to statusbar
 566         QLabel * busylabel = new QLabel(statusBar());
 567         statusBar()->addPermanentWidget(busylabel);
 568         search_mode mode = theGuiApp()->imageSearchMode();
 569         QString fn = toqstr(lyx::libFileSearch("images", "busy", "gif", mode).absFileName());
 570         QMovie * busyanim = new QMovie(fn, QByteArray(), busylabel);
 571         busylabel->setMovie(busyanim);
 572         busyanim->start();
 573         busylabel->hide();
 574
 575         connect(&d.processing_thread_watcher_, SIGNAL(started()),
 576                 busylabel, SLOT(show()));
 577         connect(&d.processing_thread_watcher_, SIGNAL(finished()),
 578                 busylabel, SLOT(hide()));
 579
 580         statusBar()->setSizeGripEnabled(true);
 581         updateStatusBar();
 582
 583         connect(&d.autosave_watcher_, SIGNAL(finished()), this,
 584                 SLOT(autoSaveThreadFinished()));
 585
 586         connect(&d.processing_thread_watcher_, SIGNAL(started()), this,
 587                 SLOT(processingThreadStarted()));
 588         connect(&d.processing_thread_watcher_, SIGNAL(finished()), this,
 589                 SLOT(processingThreadFinished()));
 590
 591         connect(this, SIGNAL(triggerShowDialog(QString const &, QString const &, Inset *)),
 592                 SLOT(doShowDialog(QString const &, QString const &, Inset *)));
 593
 594         // Forbid too small unresizable window because it can happen
 595         // with some window manager under X11.
 596         setMinimumSize(300, 200);
 597
 598         if (lyxrc.allow_geometry_session) {
 599                 // Now take care of session management.
 600                 if (restoreLayout())
 601                         return;
 602         }
 603
 604         // no session handling, default to a sane size.
 605         setGeometry(50, 50, 690, 510);
 606         initToolbars();
 607
 608         // clear session data if any.
 609         QSettings settings;
 610         settings.remove("views");
 611 }
 612
 613
 614 GuiView::~GuiView()
 615 {
 616         delete &d;
 617 }
 618
 619
 620 QVector<GuiWorkArea*> GuiView::GuiViewPrivate::guiWorkAreas()
 621 {
 622         QVector<GuiWorkArea*> areas;
 623         for (int i = 0; i < tabWorkAreaCount(); i++) {
 624                 TabWorkArea* ta = tabWorkArea(i);
 625                 for (int u = 0; u < ta->count(); u++) {
 626                         areas << ta->workArea(u);
 627                 }
 628         }
 629         return areas;
 630 }
 631
 632 static void handleExportStatus(GuiView * view, Buffer::ExportStatus status,
 633         string const & format)
 634 {
 635         docstring const fmt = formats.prettyName(format);
 636         docstring msg;
 637         switch (status) {
 638         case Buffer::ExportSuccess:
 639                 msg = bformat(_("Successful export to format: %1$s"), fmt);
 640                 break;
 641         case Buffer::ExportCancel:
 642                 msg = _("Document export cancelled.");
 643                 break;
 644         case Buffer::ExportError:
 645         case Buffer::ExportNoPathToFormat:
 646         case Buffer::ExportTexPathHasSpaces:
 647         case Buffer::ExportConverterError:
 648                 msg = bformat(_("Error while exporting format: %1$s"), fmt);
 649                 break;
 650         case Buffer::PreviewSuccess:
 651                 msg = bformat(_("Successful preview of format: %1$s"), fmt);
 652                 break;
 653         case Buffer::PreviewError:
 654                 msg = bformat(_("Error while previewing format: %1$s"), fmt);
 655                 break;
 656         }
 657         view->message(msg);
 658 }
 659
 660
 661 void GuiView::processingThreadStarted()
 662 {
 663 }
 664
 665
 666 void GuiView::processingThreadFinished()
 667 {
 668         QFutureWatcher<Buffer::ExportStatus> const * watcher =
 669                 static_cast<QFutureWatcher<Buffer::ExportStatus> const *>(sender());
 670
 671         Buffer::ExportStatus const status = watcher->result();
 672         handleExportStatus(this, status, d.processing_format);
 673
 674         updateToolbars();
 675         BufferView const * const bv = currentBufferView();
 676         if (bv && !bv->buffer().errorList("Export").empty()) {
 677                 errors("Export");
 678                 return;
 679         }
 680         errors(d.last_export_format);
 681 }
 682
 683
 684 void GuiView::autoSaveThreadFinished()
 685 {
 686         QFutureWatcher<docstring> const * watcher =
 687                 static_cast<QFutureWatcher<docstring> const *>(sender());
 688         message(watcher->result());
 689         updateToolbars();
 690 }
 691
 692
 693 void GuiView::saveLayout() const
 694 {
 695         QSettings settings;
 696         settings.beginGroup("views");
 697         settings.beginGroup(QString::number(id_));
 698 #if defined(Q_WS_X11) || defined(QPA_XCB)
 699         settings.setValue("pos", pos());
 700         settings.setValue("size", size());
 701 #else
 702         settings.setValue("geometry", saveGeometry());
 703 #endif
 704         settings.setValue("layout", saveState(0));
 705         settings.setValue("icon_size", iconSize());
 706 }
 707
 708
 709 void GuiView::saveUISettings() const
 710 {
 711         // Save the toolbar private states
 712         ToolbarMap::iterator end = d.toolbars_.end();
 713         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
 714                 it->second->saveSession();
 715         // Now take care of all other dialogs
 716         map<string, DialogPtr>::const_iterator it = d.dialogs_.begin();
 717         for (; it!= d.dialogs_.end(); ++it)
 718                 it->second->saveSession();
 719 }
 720
 721
 722 bool GuiView::restoreLayout()
 723 {
 724         QSettings settings;
 725         settings.beginGroup("views");
 726         settings.beginGroup(QString::number(id_));
 727         QString const icon_key = "icon_size";
 728         if (!settings.contains(icon_key))
 729                 return false;
 730
 731         //code below is skipped when when ~/.config/LyX is (re)created
 732         QSize icon_size = settings.value(icon_key).toSize();
 733         // Check whether session size changed.
 734         if (icon_size.width() != int(d.smallIconSize) &&
 735             icon_size.width() != int(d.normalIconSize) &&
 736             icon_size.width() != int(d.bigIconSize) &&
 737             icon_size.width() != int(d.hugeIconSize) &&
 738             icon_size.width() != int(d.giantIconSize)) {
 739                 icon_size.setWidth(d.normalIconSize);
 740                 icon_size.setHeight(d.normalIconSize);
 741         }
 742         setIconSize(icon_size);
 743
 744 #if defined(Q_WS_X11) || defined(QPA_XCB)
 745         QPoint pos = settings.value("pos", QPoint(50, 50)).toPoint();
 746         QSize size = settings.value("size", QSize(690, 510)).toSize();
 747         resize(size);
 748         move(pos);
 749 #else
 750         // Work-around for bug #6034: the window ends up in an undetermined
 751         // state when trying to restore a maximized window when it is
 752         // already maximized.
 753         if (!(windowState() & Qt::WindowMaximized))
 754                 if (!restoreGeometry(settings.value("geometry").toByteArray()))
 755                         setGeometry(50, 50, 690, 510);
 756 #endif
 757         // Make sure layout is correctly oriented.
 758         setLayoutDirection(qApp->layoutDirection());
 759
 760         // Allow the toc and view-source dock widget to be restored if needed.
 761         Dialog * dialog;
 762         if ((dialog = findOrBuild("toc", true)))
 763                 // see bug 5082. At least setup title and enabled state.
 764                 // Visibility will be adjusted by restoreState below.
 765                 dialog->prepareView();
 766         if ((dialog = findOrBuild("view-source", true)))
 767                 dialog->prepareView();
 768         if ((dialog = findOrBuild("progress", true)))
 769                 dialog->prepareView();
 770
 771         if (!restoreState(settings.value("layout").toByteArray(), 0))
 772                 initToolbars();
 773
 774         // init the toolbars that have not been restored
 775         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 776         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 777         for (; cit != end; ++cit) {
 778                 GuiToolbar * tb = toolbar(cit->name);
 779                 if (tb && !tb->isRestored())
 780                         initToolbar(cit->name);
 781         }
 782
 783         updateDialogs();
 784         return true;
 785 }
 786
 787
 788 GuiToolbar * GuiView::toolbar(string const & name)
 789 {
 790         ToolbarMap::iterator it = d.toolbars_.find(name);
 791         if (it != d.toolbars_.end())
 792                 return it->second;
 793
 794         LYXERR(Debug::GUI, "Toolbar::display: no toolbar named " << name);
 795         return 0;
 796 }
 797
 798
 799 void GuiView::constructToolbars()
 800 {
 801         ToolbarMap::iterator it = d.toolbars_.begin();
 802         for (; it != d.toolbars_.end(); ++it)
 803                 delete it->second;
 804         d.toolbars_.clear();
 805
 806         // I don't like doing this here, but the standard toolbar
 807         // destroys this object when it's destroyed itself (vfr)
 808         d.layout_ = new LayoutBox(*this);
 809         d.stack_widget_->addWidget(d.layout_);
 810         d.layout_->move(0,0);
 811
 812         // extracts the toolbars from the backend
 813         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 814         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 815         for (; cit != end; ++cit)
 816                 d.toolbars_[cit->name] =  new GuiToolbar(*cit, *this);
 817 }
 818
 819
 820 void GuiView::initToolbars()
 821 {
 822         // extracts the toolbars from the backend
 823         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 824         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 825         for (; cit != end; ++cit)
 826                 initToolbar(cit->name);
 827 }
 828
 829
 830 void GuiView::initToolbar(string const & name)
 831 {
 832         GuiToolbar * tb = toolbar(name);
 833         if (!tb)
 834                 return;
 835         int const visibility = guiApp->toolbars().defaultVisibility(name);
 836         bool newline = !(visibility & Toolbars::SAMEROW);
 837         tb->setVisible(false);
 838         tb->setVisibility(visibility);
 839
 840         if (visibility & Toolbars::TOP) {
 841                 if (newline)
 842                         addToolBarBreak(Qt::TopToolBarArea);
 843                 addToolBar(Qt::TopToolBarArea, tb);
 844         }
 845
 846         if (visibility & Toolbars::BOTTOM) {
 847                 if (newline)
 848                         addToolBarBreak(Qt::BottomToolBarArea);
 849                 addToolBar(Qt::BottomToolBarArea, tb);
 850         }
 851
 852         if (visibility & Toolbars::LEFT) {
 853                 if (newline)
 854                         addToolBarBreak(Qt::LeftToolBarArea);
 855                 addToolBar(Qt::LeftToolBarArea, tb);
 856         }
 857
 858         if (visibility & Toolbars::RIGHT) {
 859                 if (newline)
 860                         addToolBarBreak(Qt::RightToolBarArea);
 861                 addToolBar(Qt::RightToolBarArea, tb);
 862         }
 863
 864         if (visibility & Toolbars::ON)
 865                 tb->setVisible(true);
 866 }
 867
 868
 869 TocModels & GuiView::tocModels()
 870 {
 871         return d.toc_models_;
 872 }
 873
 874
 875 void GuiView::setFocus()
 876 {
 877         LYXERR(Debug::DEBUG, "GuiView::setFocus()" << this);
 878         QMainWindow::setFocus();
 879 }
 880
 881
 882 bool GuiView::hasFocus() const
 883 {
 884         if (currentWorkArea())
 885                 return currentWorkArea()->hasFocus();
 886         if (currentMainWorkArea())
 887                 return currentMainWorkArea()->hasFocus();
 888         return d.bg_widget_->hasFocus();
 889 }
 890
 891
 892 void GuiView::focusInEvent(QFocusEvent * e)
 893 {
 894         LYXERR(Debug::DEBUG, "GuiView::focusInEvent()" << this);
 895         QMainWindow::focusInEvent(e);
 896         // Make sure guiApp points to the correct view.
 897         guiApp->setCurrentView(this);
 898         if (currentWorkArea())
 899                 currentWorkArea()->setFocus();
 900         else if (currentMainWorkArea())
 901                 currentMainWorkArea()->setFocus();
 902         else
 903                 d.bg_widget_->setFocus();
 904 }
 905
 906
 907 QMenu * GuiView::createPopupMenu()
 908 {
 909         return d.toolBarPopup(this);
 910 }
 911
 912
 913 void GuiView::showEvent(QShowEvent * e)
 914 {
 915         LYXERR(Debug::GUI, "Passed Geometry "
 916                 << size().height() << "x" << size().width()
 917                 << "+" << pos().x() << "+" << pos().y());
 918
 919         if (d.splitter_->count() == 0)
 920                 // No work area, switch to the background widget.
 921                 d.setBackground();
 922
 923         updateToolbars();
 924         QMainWindow::showEvent(e);
 925 }
 926
 927
 928 bool GuiView::closeScheduled()
 929 {
 930         closing_ = true;
 931         return close();
 932 }
 933
 934
 935 bool GuiView::prepareAllBuffersForLogout()
 936 {
 937         Buffer * first = theBufferList().first();
 938         if (!first)
 939                 return true;
 940
 941         // First, iterate over all buffers and ask the users if unsaved
 942         // changes should be saved.
 943         // We cannot use a for loop as the buffer list cycles.
 944         Buffer * b = first;
 945         do {
 946                 if (!saveBufferIfNeeded(const_cast<Buffer &>(*b), false))
 947                         return false;
 948                 b = theBufferList().next(b);
 949         } while (b != first);
 950
 951         // Next, save session state
 952         // When a view/window was closed before without quitting LyX, there
 953         // are already entries in the lastOpened list.
 954         theSession().lastOpened().clear();
 955         writeSession();
 956
 957         return true;
 958 }
 959
 960
 961 /** Destroy only all tabbed WorkAreas. Destruction of other WorkAreas
 962  ** is responsibility of the container (e.g., dialog)
 963  **/
 964 void GuiView::closeEvent(QCloseEvent * close_event)
 965 {
 966         LYXERR(Debug::DEBUG, "GuiView::closeEvent()");
 967
 968         if (!GuiViewPrivate::busyBuffers.isEmpty()) {
 969                 Alert::warning(_("Exit LyX"),
 970                         _("LyX could not be closed because documents are being processed by LyX."));
 971                 close_event->setAccepted(false);
 972                 return;
 973         }
 974
 975         // If the user pressed the x (so we didn't call closeView
 976         // programmatically), we want to clear all existing entries.
 977         if (!closing_)
 978                 theSession().lastOpened().clear();
 979         closing_ = true;
 980
 981         writeSession();
 982
 983         // it can happen that this event arrives without selecting the view,
 984         // e.g. when clicking the close button on a background window.
 985         setFocus();
 986         if (!closeWorkAreaAll()) {
 987                 closing_ = false;
 988                 close_event->ignore();
 989                 return;
 990         }
 991
 992         // Make sure that nothing will use this to be closed View.
 993         guiApp->unregisterView(this);
 994
 995         if (isFullScreen()) {
 996                 // Switch off fullscreen before closing.
 997                 toggleFullScreen();
 998                 updateDialogs();
 999         }
1000
1001         // Make sure the timer time out will not trigger a statusbar update.
1002         d.statusbar_timer_.stop();
1003
1004         // Saving fullscreen requires additional tweaks in the toolbar code.
1005         // It wouldn't also work under linux natively.
1006         if (lyxrc.allow_geometry_session) {
1007                 saveLayout();
1008                 saveUISettings();
1009         }
1010
1011         close_event->accept();
1012 }
1013
1014
1015 void GuiView::dragEnterEvent(QDragEnterEvent * event)
1016 {
1017         if (event->mimeData()->hasUrls())
1018                 event->accept();
1019         /// \todo Ask lyx-devel is this is enough:
1020         /// if (event->mimeData()->hasFormat("text/plain"))
1021         ///     event->acceptProposedAction();
1022 }
1023
1024
1025 void GuiView::dropEvent(QDropEvent * event)
1026 {
1027         QList<QUrl> files = event->mimeData()->urls();
1028         if (files.isEmpty())
1029                 return;
1030
1031         LYXERR(Debug::GUI, "GuiView::dropEvent: got URLs!");
1032         for (int i = 0; i != files.size(); ++i) {
1033                 string const file = os::internal_path(fromqstr(
1034                         files.at(i).toLocalFile()));
1035                 if (file.empty())
1036                         continue;
1037
1038                 string const ext = support::getExtension(file);
1039                 vector<const Format *> found_formats;
1040
1041                 // Find all formats that have the correct extension.
1042                 vector<const Format *> const & import_formats
1043                         = theConverters().importableFormats();
1044                 vector<const Format *>::const_iterator it = import_formats.begin();
1045                 for (; it != import_formats.end(); ++it)
1046                         if ((*it)->hasExtension(ext))
1047                                 found_formats.push_back(*it);
1048
1049                 FuncRequest cmd;
1050                 if (found_formats.size() >= 1) {
1051                         if (found_formats.size() > 1) {
1052                                 //FIXME: show a dialog to choose the correct importable format
1053                                 LYXERR(Debug::FILES,
1054                                         "Multiple importable formats found, selecting first");
1055                         }
1056                         string const arg = found_formats[0]->name() + " " + file;
1057                         cmd = FuncRequest(LFUN_BUFFER_IMPORT, arg);
1058                 }
1059                 else {
1060                         //FIXME: do we have to explicitly check whether it's a lyx file?
1061                         LYXERR(Debug::FILES,
1062                                 "No formats found, trying to open it as a lyx file");
1063                         cmd = FuncRequest(LFUN_FILE_OPEN, file);
1064                 }
1065                 // add the functions to the queue
1066                 guiApp->addToFuncRequestQueue(cmd);
1067                 event->accept();
1068         }
1069         // now process the collected functions. We perform the events
1070         // asynchronously. This prevents potential problems in case the
1071         // BufferView is closed within an event.
1072         guiApp->processFuncRequestQueueAsync();
1073 }
1074
1075
1076 void GuiView::message(docstring const & str)
1077 {
1078         if (ForkedProcess::iAmAChild())
1079                 return;
1080
1081         // call is moved to GUI-thread by GuiProgress
1082         d.progress_->appendMessage(toqstr(str));
1083 }
1084
1085
1086 void GuiView::clearMessageText()
1087 {
1088         message(docstring());
1089 }
1090
1091
1092 void GuiView::updateStatusBarMessage(QString const & str)
1093 {
1094         statusBar()->showMessage(str);
1095         d.statusbar_timer_.stop();
1096         d.statusbar_timer_.start(3000);
1097 }
1098
1099
1100 void GuiView::smallSizedIcons()
1101 {
1102         setIconSize(QSize(d.smallIconSize, d.smallIconSize));
1103 }
1104
1105
1106 void GuiView::normalSizedIcons()
1107 {
1108         setIconSize(QSize(d.normalIconSize, d.normalIconSize));
1109 }
1110
1111
1112 void GuiView::bigSizedIcons()
1113 {
1114         setIconSize(QSize(d.bigIconSize, d.bigIconSize));
1115 }
1116
1117
1118 void GuiView::hugeSizedIcons()
1119 {
1120         setIconSize(QSize(d.hugeIconSize, d.hugeIconSize));
1121 }
1122
1123
1124 void GuiView::giantSizedIcons()
1125 {
1126         setIconSize(QSize(d.giantIconSize, d.giantIconSize));
1127 }
1128
1129
1130 void GuiView::clearMessage()
1131 {
1132         // FIXME: This code was introduced in r19643 to fix bug #4123. However,
1133         // the hasFocus function mostly returns false, even if the focus is on
1134         // a workarea in this view.
1135         //if (!hasFocus())
1136         //      return;
1137         showMessage();
1138         d.statusbar_timer_.stop();
1139 }
1140
1141
1142 void GuiView::updateWindowTitle(GuiWorkArea * wa)
1143 {
1144         if (wa != d.current_work_area_
1145                 || wa->bufferView().buffer().isInternal())
1146                 return;
1147         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
1148         setWindowIconText(wa->windowIconText());
1149 #if (QT_VERSION >= 0x040400)
1150         // Sets the path for the window: this is used by OSX to
1151         // allow a context click on the title bar showing a menu
1152         // with the path up to the file
1153         setWindowFilePath(toqstr(wa->bufferView().buffer().absFileName()));
1154 #endif
1155 }
1156
1157
1158 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
1159 {
1160         if (d.current_work_area_)
1161                 QObject::disconnect(d.current_work_area_, SIGNAL(busy(bool)),
1162                         this, SLOT(setBusy(bool)));
1163         disconnectBuffer();
1164         disconnectBufferView();
1165         connectBufferView(wa->bufferView());
1166         connectBuffer(wa->bufferView().buffer());
1167         d.current_work_area_ = wa;
1168         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
1169                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
1170         QObject::connect(wa, SIGNAL(busy(bool)), this, SLOT(setBusy(bool)));
1171         updateWindowTitle(wa);
1172
1173         structureChanged();
1174
1175         // The document settings needs to be reinitialised.
1176         updateDialog("document", "");
1177
1178         // Buffer-dependent dialogs must be updated. This is done here because
1179         // some dialogs require buffer()->text.
1180         updateDialogs();
1181 }
1182
1183
1184 void GuiView::on_lastWorkAreaRemoved()
1185 {
1186         if (closing_)
1187                 // We already are in a close event. Nothing more to do.
1188                 return;
1189
1190         if (d.splitter_->count() > 1)
1191                 // We have a splitter so don't close anything.
1192                 return;
1193
1194         // Reset and updates the dialogs.
1195         d.toc_models_.reset(0);
1196         updateDialog("document", "");
1197         updateDialogs();
1198
1199         resetWindowTitleAndIconText();
1200         updateStatusBar();
1201
1202         if (lyxrc.open_buffers_in_tabs)
1203                 // Nothing more to do, the window should stay open.
1204                 return;
1205
1206         if (guiApp->viewIds().size() > 1) {
1207                 close();
1208                 return;
1209         }
1210
1211 #ifdef Q_OS_MAC
1212         // On Mac we also close the last window because the application stay
1213         // resident in memory. On other platforms we don't close the last
1214         // window because this would quit the application.
1215         close();
1216 #endif
1217 }
1218
1219
1220 void GuiView::updateStatusBar()
1221 {
1222         // let the user see the explicit message
1223         if (d.statusbar_timer_.isActive())
1224                 return;
1225
1226         showMessage();
1227 }
1228
1229
1230 void GuiView::showMessage()
1231 {
1232         if (busy_)
1233                 return;
1234         QString msg = toqstr(theGuiApp()->viewStatusMessage());
1235         if (msg.isEmpty()) {
1236                 BufferView const * bv = currentBufferView();
1237                 if (bv)
1238                         msg = toqstr(bv->cursor().currentState());
1239                 else
1240                         msg = qt_("Welcome to LyX!");
1241         }
1242         statusBar()->showMessage(msg);
1243 }
1244
1245
1246 bool GuiView::event(QEvent * e)
1247 {
1248         switch (e->type())
1249         {
1250         // Useful debug code:
1251         //case QEvent::ActivationChange:
1252         //case QEvent::WindowDeactivate:
1253         //case QEvent::Paint:
1254         //case QEvent::Enter:
1255         //case QEvent::Leave:
1256         //case QEvent::HoverEnter:
1257         //case QEvent::HoverLeave:
1258         //case QEvent::HoverMove:
1259         //case QEvent::StatusTip:
1260         //case QEvent::DragEnter:
1261         //case QEvent::DragLeave:
1262         //case QEvent::Drop:
1263         //      break;
1264
1265         case QEvent::WindowActivate: {
1266                 GuiView * old_view = guiApp->currentView();
1267                 if (this == old_view) {
1268                         setFocus();
1269                         return QMainWindow::event(e);
1270                 }
1271                 if (old_view && old_view->currentBufferView()) {
1272                         // save current selection to the selection buffer to allow
1273                         // middle-button paste in this window.
1274                         cap::saveSelection(old_view->currentBufferView()->cursor());
1275                 }
1276                 guiApp->setCurrentView(this);
1277                 if (d.current_work_area_) {
1278                         BufferView & bv = d.current_work_area_->bufferView();
1279                         connectBufferView(bv);
1280                         connectBuffer(bv.buffer());
1281                         // The document structure, name and dialogs might have
1282                         // changed in another view.
1283                         structureChanged();
1284                         // The document settings needs to be reinitialised.
1285                         updateDialog("document", "");
1286                         updateDialogs();
1287                 } else {
1288                         resetWindowTitleAndIconText();
1289                 }
1290                 setFocus();
1291                 return QMainWindow::event(e);
1292         }
1293
1294         case QEvent::ShortcutOverride: {
1295                 // See bug 4888
1296                 if (isFullScreen() && menuBar()->isHidden()) {
1297                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
1298                         // FIXME: we should also try to detect special LyX shortcut such as
1299                         // Alt-P and Alt-M. Right now there is a hack in
1300                         // GuiWorkArea::processKeySym() that hides again the menubar for
1301                         // those cases.
1302                         if (ke->modifiers() & Qt::AltModifier && ke->key() != Qt::Key_Alt) {
1303                                 menuBar()->show();
1304                                 return QMainWindow::event(e);
1305                         }
1306                 }
1307                 return QMainWindow::event(e);
1308         }
1309
1310         default:
1311                 return QMainWindow::event(e);
1312         }
1313 }
1314
1315 void GuiView::resetWindowTitleAndIconText()
1316 {
1317         setWindowTitle(qt_("LyX"));
1318         setWindowIconText(qt_("LyX"));
1319 }
1320
1321 bool GuiView::focusNextPrevChild(bool /*next*/)
1322 {
1323         setFocus();
1324         return true;
1325 }
1326
1327
1328 bool GuiView::busy() const
1329 {
1330         return busy_ > 0;
1331 }
1332
1333
1334 void GuiView::setBusy(bool busy)
1335 {
1336         bool const busy_before = busy_ > 0;
1337         busy ? ++busy_ : --busy_;
1338         if ((busy_ > 0) == busy_before)
1339                 // busy state didn't change
1340                 return;
1341
1342         if (busy) {
1343                 QApplication::setOverrideCursor(Qt::WaitCursor);
1344                 return;
1345         }
1346         QApplication::restoreOverrideCursor();
1347         updateLayoutList();
1348 }
1349
1350
1351 void GuiView::resetCommandExecute()
1352 {
1353         command_execute_ = false;
1354         updateToolbars();
1355 }
1356
1357
1358 double GuiView::pixelRatio() const
1359 {
1360 #if QT_VERSION >= 0x050000
1361         return devicePixelRatio();
1362 #else
1363         return 1.0;
1364 #endif
1365 }
1366
1367
1368 GuiWorkArea * GuiView::workArea(int index)
1369 {
1370         if (TabWorkArea * twa = d.currentTabWorkArea())
1371                 if (index < twa->count())
1372                         return dynamic_cast<GuiWorkArea *>(twa->widget(index));
1373         return 0;
1374 }
1375
1376
1377 GuiWorkArea * GuiView::workArea(Buffer & buffer)
1378 {
1379         if (currentWorkArea()
1380                 && &currentWorkArea()->bufferView().buffer() == &buffer)
1381                 return currentWorkArea();
1382         if (TabWorkArea * twa = d.currentTabWorkArea())
1383                 return twa->workArea(buffer);
1384         return 0;
1385 }
1386
1387
1388 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
1389 {
1390         // Automatically create a TabWorkArea if there are none yet.
1391         TabWorkArea * tab_widget = d.splitter_->count()
1392                 ? d.currentTabWorkArea() : addTabWorkArea();
1393         return tab_widget->addWorkArea(buffer, *this);
1394 }
1395
1396
1397 TabWorkArea * GuiView::addTabWorkArea()
1398 {
1399         TabWorkArea * twa = new TabWorkArea;
1400         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
1401                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
1402         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
1403                          this, SLOT(on_lastWorkAreaRemoved()));
1404
1405         d.splitter_->addWidget(twa);
1406         d.stack_widget_->setCurrentWidget(d.splitter_);
1407         return twa;
1408 }
1409
1410
1411 GuiWorkArea const * GuiView::currentWorkArea() const
1412 {
1413         return d.current_work_area_;
1414 }
1415
1416
1417 GuiWorkArea * GuiView::currentWorkArea()
1418 {
1419         return d.current_work_area_;
1420 }
1421
1422
1423 GuiWorkArea const * GuiView::currentMainWorkArea() const
1424 {
1425         if (!d.currentTabWorkArea())
1426                 return 0;
1427         return d.currentTabWorkArea()->currentWorkArea();
1428 }
1429
1430
1431 GuiWorkArea * GuiView::currentMainWorkArea()
1432 {
1433         if (!d.currentTabWorkArea())
1434                 return 0;
1435         return d.currentTabWorkArea()->currentWorkArea();
1436 }
1437
1438
1439 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
1440 {
1441         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
1442         if (!wa) {
1443                 d.current_work_area_ = 0;
1444                 d.setBackground();
1445                 return;
1446         }
1447
1448         // FIXME: I've no clue why this is here and why it accesses
1449         //  theGuiApp()->currentView, which might be 0 (bug 6464).
1450         //  See also 27525 (vfr).
1451         if (theGuiApp()->currentView() == this
1452                   && theGuiApp()->currentView()->currentWorkArea() == wa)
1453                 return;
1454
1455         if (currentBufferView())
1456                 cap::saveSelection(currentBufferView()->cursor());
1457
1458         theGuiApp()->setCurrentView(this);
1459         d.current_work_area_ = wa;
1460
1461         // We need to reset this now, because it will need to be
1462         // right if the tabWorkArea gets reset in the for loop. We
1463         // will change it back if we aren't in that case.
1464         GuiWorkArea * const old_cmwa = d.current_main_work_area_;
1465         d.current_main_work_area_ = wa;
1466
1467         for (int i = 0; i != d.splitter_->count(); ++i) {
1468                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
1469                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea()
1470                                 << ", Current main wa: " << currentMainWorkArea());
1471                         return;
1472                 }
1473         }
1474
1475         d.current_main_work_area_ = old_cmwa;
1476
1477         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
1478         on_currentWorkAreaChanged(wa);
1479         BufferView & bv = wa->bufferView();
1480         bv.cursor().fixIfBroken();
1481         bv.updateMetrics();
1482         wa->setUpdatesEnabled(true);
1483         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
1484 }
1485
1486
1487 void GuiView::removeWorkArea(GuiWorkArea * wa)
1488 {
1489         LASSERT(wa, return);
1490         if (wa == d.current_work_area_) {
1491                 disconnectBuffer();
1492                 disconnectBufferView();
1493                 d.current_work_area_ = 0;
1494                 d.current_main_work_area_ = 0;
1495         }
1496
1497         bool found_twa = false;
1498         for (int i = 0; i != d.splitter_->count(); ++i) {
1499                 TabWorkArea * twa = d.tabWorkArea(i);
1500                 if (twa->removeWorkArea(wa)) {
1501                         // Found in this tab group, and deleted the GuiWorkArea.
1502                         found_twa = true;
1503                         if (twa->count() != 0) {
1504                                 if (d.current_work_area_ == 0)
1505                                         // This means that we are closing the current GuiWorkArea, so
1506                                         // switch to the next GuiWorkArea in the found TabWorkArea.
1507                                         setCurrentWorkArea(twa->currentWorkArea());
1508                         } else {
1509                                 // No more WorkAreas in this tab group, so delete it.
1510                                 delete twa;
1511                         }
1512                         break;
1513                 }
1514         }
1515
1516         // It is not a tabbed work area (i.e., the search work area), so it
1517         // should be deleted by other means.
1518         LASSERT(found_twa, return);
1519
1520         if (d.current_work_area_ == 0) {
1521                 if (d.splitter_->count() != 0) {
1522                         TabWorkArea * twa = d.currentTabWorkArea();
1523                         setCurrentWorkArea(twa->currentWorkArea());
1524                 } else {
1525                         // No more work areas, switch to the background widget.
1526                         setCurrentWorkArea(0);
1527                 }
1528         }
1529 }
1530
1531
1532 LayoutBox * GuiView::getLayoutDialog() const
1533 {
1534         return d.layout_;
1535 }
1536
1537
1538 void GuiView::updateLayoutList()
1539 {
1540         if (d.layout_)
1541                 d.layout_->updateContents(false);
1542 }
1543
1544
1545 void GuiView::updateToolbars()
1546 {
1547         ToolbarMap::iterator end = d.toolbars_.end();
1548         if (d.current_work_area_) {
1549                 int context = 0;
1550                 if (d.current_work_area_->bufferView().cursor().inMathed()
1551                         && !d.current_work_area_->bufferView().cursor().inRegexped())
1552                         context |= Toolbars::MATH;
1553                 if (lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled())
1554                         context |= Toolbars::TABLE;
1555                 if (currentBufferView()->buffer().areChangesPresent()
1556                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled()
1557                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onOff(true))
1558                     || (lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).enabled()
1559                         && lyx::getStatus(FuncRequest(LFUN_CHANGES_OUTPUT)).onOff(true)))
1560                         context |= Toolbars::REVIEW;
1561                 if (lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled())
1562                         context |= Toolbars::MATHMACROTEMPLATE;
1563                 if (lyx::getStatus(FuncRequest(LFUN_IN_IPA)).enabled())
1564                         context |= Toolbars::IPA;
1565                 if (command_execute_)
1566                         context |= Toolbars::MINIBUFFER;
1567                 if (minibuffer_focus_) {
1568                         context |= Toolbars::MINIBUFFER_FOCUS;
1569                         minibuffer_focus_ = false;
1570                 }
1571
1572                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1573                         it->second->update(context);
1574         } else
1575                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1576                         it->second->update();
1577 }
1578
1579
1580 void GuiView::setBuffer(Buffer * newBuffer)
1581 {
1582         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << endl);
1583         LASSERT(newBuffer, return);
1584
1585         GuiWorkArea * wa = workArea(*newBuffer);
1586         if (wa == 0) {
1587                 setBusy(true);
1588                 newBuffer->masterBuffer()->updateBuffer();
1589                 setBusy(false);
1590                 wa = addWorkArea(*newBuffer);
1591                 // scroll to the position when the BufferView was last closed
1592                 if (lyxrc.use_lastfilepos) {
1593                         LastFilePosSection::FilePos filepos =
1594                                 theSession().lastFilePos().load(newBuffer->fileName());
1595                         wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1596                 }
1597         } else {
1598                 //Disconnect the old buffer...there's no new one.
1599                 disconnectBuffer();
1600         }
1601         connectBuffer(*newBuffer);
1602         connectBufferView(wa->bufferView());
1603         setCurrentWorkArea(wa);
1604 }
1605
1606
1607 void GuiView::connectBuffer(Buffer & buf)
1608 {
1609         buf.setGuiDelegate(this);
1610 }
1611
1612
1613 void GuiView::disconnectBuffer()
1614 {
1615         if (d.current_work_area_)
1616                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1617 }
1618
1619
1620 void GuiView::connectBufferView(BufferView & bv)
1621 {
1622         bv.setGuiDelegate(this);
1623 }
1624
1625
1626 void GuiView::disconnectBufferView()
1627 {
1628         if (d.current_work_area_)
1629                 d.current_work_area_->bufferView().setGuiDelegate(0);
1630 }
1631
1632
1633 void GuiView::errors(string const & error_type, bool from_master)
1634 {
1635         BufferView const * const bv = currentBufferView();
1636         if (!bv)
1637                 return;
1638
1639 #if EXPORT_in_THREAD
1640         // We are called with from_master == false by default, so we
1641         // have to figure out whether that is the case or not.
1642         ErrorList & el = bv->buffer().errorList(error_type);
1643         if (el.empty()) {
1644             el = bv->buffer().masterBuffer()->errorList(error_type);
1645             from_master = true;
1646         }
1647 #else
1648         ErrorList const & el = from_master ?
1649                 bv->buffer().masterBuffer()->errorList(error_type) :
1650                 bv->buffer().errorList(error_type);
1651 #endif
1652
1653         if (el.empty())
1654                 return;
1655
1656         string data = error_type;
1657         if (from_master)
1658                 data = "from_master|" + error_type;
1659         showDialog("errorlist", data);
1660 }
1661
1662
1663 void GuiView::updateTocItem(string const & type, DocIterator const & dit)
1664 {
1665         d.toc_models_.updateItem(toqstr(type), dit);
1666 }
1667
1668
1669 void GuiView::structureChanged()
1670 {
1671         // FIXME: This is slightly expensive, though less than the tocBackend update
1672         // (#9880). This also resets the view in the Toc Widget (#6675).
1673         d.toc_models_.reset(documentBufferView());
1674         // Navigator needs more than a simple update in this case. It needs to be
1675         // rebuilt.
1676         updateDialog("toc", "");
1677 }
1678
1679
1680 void GuiView::updateDialog(string const & name, string const & data)
1681 {
1682         if (!isDialogVisible(name))
1683                 return;
1684
1685         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1686         if (it == d.dialogs_.end())
1687                 return;
1688
1689         Dialog * const dialog = it->second.get();
1690         if (dialog->isVisibleView())
1691                 dialog->initialiseParams(data);
1692 }
1693
1694
1695 BufferView * GuiView::documentBufferView()
1696 {
1697         return currentMainWorkArea()
1698                 ? &currentMainWorkArea()->bufferView()
1699                 : 0;
1700 }
1701
1702
1703 BufferView const * GuiView::documentBufferView() const
1704 {
1705         return currentMainWorkArea()
1706                 ? &currentMainWorkArea()->bufferView()
1707                 : 0;
1708 }
1709
1710
1711 BufferView * GuiView::currentBufferView()
1712 {
1713         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1714 }
1715
1716
1717 BufferView const * GuiView::currentBufferView() const
1718 {
1719         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1720 }
1721
1722
1723 docstring GuiView::GuiViewPrivate::autosaveAndDestroy(
1724         Buffer const * orig, Buffer * clone)
1725 {
1726         bool const success = clone->autoSave();
1727         delete clone;
1728         busyBuffers.remove(orig);
1729         return success
1730                 ? _("Automatic save done.")
1731                 : _("Automatic save failed!");
1732 }
1733
1734
1735 void GuiView::autoSave()
1736 {
1737         LYXERR(Debug::INFO, "Running autoSave()");
1738
1739         Buffer * buffer = documentBufferView()
1740                 ? &documentBufferView()->buffer() : 0;
1741         if (!buffer) {
1742                 resetAutosaveTimers();
1743                 return;
1744         }
1745
1746         GuiViewPrivate::busyBuffers.insert(buffer);
1747         QFuture<docstring> f = QtConcurrent::run(GuiViewPrivate::autosaveAndDestroy,
1748                 buffer, buffer->cloneBufferOnly());
1749         d.autosave_watcher_.setFuture(f);
1750         resetAutosaveTimers();
1751 }
1752
1753
1754 void GuiView::resetAutosaveTimers()
1755 {
1756         if (lyxrc.autosave)
1757                 d.autosave_timeout_.restart();
1758 }
1759
1760
1761 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1762 {
1763         bool enable = true;
1764         Buffer * buf = currentBufferView()
1765                 ? &currentBufferView()->buffer() : 0;
1766         Buffer * doc_buffer = documentBufferView()
1767                 ? &(documentBufferView()->buffer()) : 0;
1768
1769 #ifdef Q_OS_MAC
1770         /* In LyX/Mac, when a dialog is open, the menus of the
1771            application can still be accessed without giving focus to
1772            the main window. In this case, we want to disable the menu
1773            entries that are buffer-related.
1774            This code must not be used on Linux and Windows, since it
1775            would disable buffer-related entries when hovering over the
1776            menu (see bug #9574).
1777          */
1778         if (cmd.origin() == FuncRequest::MENU && !hasFocus()) {
1779                 buf = 0;
1780                 doc_buffer = 0;
1781         }
1782 #endif
1783
1784         // Check whether we need a buffer
1785         if (!lyxaction.funcHasFlag(cmd.action(), LyXAction::NoBuffer) && !buf) {
1786                 // no, exit directly
1787                 flag.message(from_utf8(N_("Command not allowed with"
1788                                         "out any document open")));
1789                 flag.setEnabled(false);
1790                 return true;
1791         }
1792
1793         if (cmd.origin() == FuncRequest::TOC) {
1794                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1795                 if (!toc || !toc->getStatus(documentBufferView()->cursor(), cmd, flag))
1796                         flag.setEnabled(false);
1797                 return true;
1798         }
1799
1800         switch(cmd.action()) {
1801         case LFUN_BUFFER_IMPORT:
1802                 break;
1803
1804         case LFUN_MASTER_BUFFER_UPDATE:
1805         case LFUN_MASTER_BUFFER_VIEW:
1806                 enable = doc_buffer
1807                         && (doc_buffer->parent() != 0
1808                             || doc_buffer->hasChildren())
1809                         && !d.processing_thread_watcher_.isRunning();
1810                 break;
1811
1812         case LFUN_BUFFER_UPDATE:
1813         case LFUN_BUFFER_VIEW: {
1814                 if (!doc_buffer || d.processing_thread_watcher_.isRunning()) {
1815                         enable = false;
1816                         break;
1817                 }
1818                 string format = to_utf8(cmd.argument());
1819                 if (cmd.argument().empty())
1820                         format = doc_buffer->params().getDefaultOutputFormat();
1821                 enable = doc_buffer->params().isExportableFormat(format);
1822                 break;
1823         }
1824
1825         case LFUN_BUFFER_RELOAD:
1826                 enable = doc_buffer && !doc_buffer->isUnnamed()
1827                         && doc_buffer->fileName().exists()
1828                         && (!doc_buffer->isClean()
1829                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1830                 break;
1831
1832         case LFUN_BUFFER_CHILD_OPEN:
1833                 enable = doc_buffer != 0;
1834                 break;
1835
1836         case LFUN_BUFFER_WRITE:
1837                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1838                 break;
1839
1840         //FIXME: This LFUN should be moved to GuiApplication.
1841         case LFUN_BUFFER_WRITE_ALL: {
1842                 // We enable the command only if there are some modified buffers
1843                 Buffer * first = theBufferList().first();
1844                 enable = false;
1845                 if (!first)
1846                         break;
1847                 Buffer * b = first;
1848                 // We cannot use a for loop as the buffer list is a cycle.
1849                 do {
1850                         if (!b->isClean()) {
1851                                 enable = true;
1852                                 break;
1853                         }
1854                         b = theBufferList().next(b);
1855                 } while (b != first);
1856                 break;
1857         }
1858
1859         case LFUN_BUFFER_WRITE_AS:
1860         case LFUN_BUFFER_EXPORT_AS:
1861                 enable = doc_buffer != 0;
1862                 break;
1863
1864         case LFUN_BUFFER_CLOSE:
1865         case LFUN_VIEW_CLOSE:
1866                 enable = doc_buffer != 0;
1867                 break;
1868
1869         case LFUN_BUFFER_CLOSE_ALL:
1870                 enable = theBufferList().last() != theBufferList().first();
1871                 break;
1872
1873         case LFUN_VIEW_SPLIT:
1874                 if (cmd.getArg(0) == "vertical")
1875                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1876                                          d.splitter_->orientation() == Qt::Vertical);
1877                 else
1878                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1879                                          d.splitter_->orientation() == Qt::Horizontal);
1880                 break;
1881
1882         case LFUN_TAB_GROUP_CLOSE:
1883                 enable = d.tabWorkAreaCount() > 1;
1884                 break;
1885
1886         case LFUN_TOOLBAR_TOGGLE: {
1887                 string const name = cmd.getArg(0);
1888                 if (GuiToolbar * t = toolbar(name))
1889                         flag.setOnOff(t->isVisible());
1890                 else {
1891                         enable = false;
1892                         docstring const msg =
1893                                 bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name));
1894                         flag.message(msg);
1895                 }
1896                 break;
1897         }
1898
1899         case LFUN_DROP_LAYOUTS_CHOICE:
1900                 enable = buf != 0;
1901                 break;
1902
1903         case LFUN_UI_TOGGLE:
1904                 flag.setOnOff(isFullScreen());
1905                 break;
1906
1907         case LFUN_DIALOG_DISCONNECT_INSET:
1908                 break;
1909
1910         case LFUN_DIALOG_HIDE:
1911                 // FIXME: should we check if the dialog is shown?
1912                 break;
1913
1914         case LFUN_DIALOG_TOGGLE:
1915                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1916                 // fall through to set "enable"
1917         case LFUN_DIALOG_SHOW: {
1918                 string const name = cmd.getArg(0);
1919                 if (!doc_buffer)
1920                         enable = name == "aboutlyx"
1921                                 || name == "file" //FIXME: should be removed.
1922                                 || name == "prefs"
1923                                 || name == "texinfo"
1924                                 || name == "progress"
1925                                 || name == "compare";
1926                 else if (name == "character" || name == "symbols"
1927                         || name == "mathdelimiter" || name == "mathmatrix") {
1928                         if (!buf || buf->isReadonly())
1929                                 enable = false;
1930                         else {
1931                                 Cursor const & cur = currentBufferView()->cursor();
1932                                 enable = !(cur.inTexted() && cur.paragraph().isPassThru());
1933                         }
1934                 }
1935                 else if (name == "latexlog")
1936                         enable = FileName(doc_buffer->logName()).isReadableFile();
1937                 else if (name == "spellchecker")
1938                         enable = theSpellChecker()
1939                                 && !doc_buffer->isReadonly()
1940                                 && !doc_buffer->text().empty();
1941                 else if (name == "vclog")
1942                         enable = doc_buffer->lyxvc().inUse();
1943                 break;
1944         }
1945
1946         case LFUN_DIALOG_UPDATE: {
1947                 string const name = cmd.getArg(0);
1948                 if (!buf)
1949                         enable = name == "prefs";
1950                 break;
1951         }
1952
1953         case LFUN_COMMAND_EXECUTE:
1954         case LFUN_MESSAGE:
1955         case LFUN_MENU_OPEN:
1956                 // Nothing to check.
1957                 break;
1958
1959         case LFUN_COMPLETION_INLINE:
1960                 if (!d.current_work_area_
1961                         || !d.current_work_area_->completer().inlinePossible(
1962                         currentBufferView()->cursor()))
1963                         enable = false;
1964                 break;
1965
1966         case LFUN_COMPLETION_POPUP:
1967                 if (!d.current_work_area_
1968                         || !d.current_work_area_->completer().popupPossible(
1969                         currentBufferView()->cursor()))
1970                         enable = false;
1971                 break;
1972
1973         case LFUN_COMPLETE:
1974                 if (!d.current_work_area_
1975                         || !d.current_work_area_->completer().inlinePossible(
1976                         currentBufferView()->cursor()))
1977                         enable = false;
1978                 break;
1979
1980         case LFUN_COMPLETION_ACCEPT:
1981                 if (!d.current_work_area_
1982                         || (!d.current_work_area_->completer().popupVisible()
1983                         && !d.current_work_area_->completer().inlineVisible()
1984                         && !d.current_work_area_->completer().completionAvailable()))
1985                         enable = false;
1986                 break;
1987
1988         case LFUN_COMPLETION_CANCEL:
1989                 if (!d.current_work_area_
1990                         || (!d.current_work_area_->completer().popupVisible()
1991                         && !d.current_work_area_->completer().inlineVisible()))
1992                         enable = false;
1993                 break;
1994
1995         case LFUN_BUFFER_ZOOM_OUT:
1996                 enable = doc_buffer && lyxrc.zoom > 10;
1997                 if (lyxrc.zoom <= 10)
1998                         flag.message(_("Zoom level cannot be less than 10%."));
1999                 break;
2000
2001         case LFUN_BUFFER_ZOOM_IN:
2002                 enable = doc_buffer != 0;
2003                 break;
2004
2005         case LFUN_BUFFER_MOVE_NEXT:
2006         case LFUN_BUFFER_MOVE_PREVIOUS:
2007                 // we do not cycle when moving
2008         case LFUN_BUFFER_NEXT:
2009         case LFUN_BUFFER_PREVIOUS:
2010                 // because we cycle, it doesn't matter whether on first or last
2011                 enable = (d.currentTabWorkArea()->count() > 1);
2012                 break;
2013         case LFUN_BUFFER_SWITCH:
2014                 // toggle on the current buffer, but do not toggle off
2015                 // the other ones (is that a good idea?)
2016                 if (doc_buffer
2017                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
2018                         flag.setOnOff(true);
2019                 break;
2020
2021         case LFUN_VC_REGISTER:
2022                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
2023                 break;
2024         case LFUN_VC_RENAME:
2025                 enable = doc_buffer && doc_buffer->lyxvc().renameEnabled();
2026                 break;
2027         case LFUN_VC_COPY:
2028                 enable = doc_buffer && doc_buffer->lyxvc().copyEnabled();
2029                 break;
2030         case LFUN_VC_CHECK_IN:
2031                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
2032                 break;
2033         case LFUN_VC_CHECK_OUT:
2034                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
2035                 break;
2036         case LFUN_VC_LOCKING_TOGGLE:
2037                 enable = doc_buffer && !doc_buffer->isReadonly()
2038                         && doc_buffer->lyxvc().lockingToggleEnabled();
2039                 flag.setOnOff(enable && doc_buffer->lyxvc().locking());
2040                 break;
2041         case LFUN_VC_REVERT:
2042                 enable = doc_buffer && doc_buffer->lyxvc().inUse() && !doc_buffer->isReadonly();
2043                 break;
2044         case LFUN_VC_UNDO_LAST:
2045                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
2046                 break;
2047         case LFUN_VC_REPO_UPDATE:
2048                 enable = doc_buffer && doc_buffer->lyxvc().repoUpdateEnabled();
2049                 break;
2050         case LFUN_VC_COMMAND: {
2051                 if (cmd.argument().empty())
2052                         enable = false;
2053                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
2054                         enable = false;
2055                 break;
2056         }
2057         case LFUN_VC_COMPARE:
2058                 enable = doc_buffer && doc_buffer->lyxvc().prepareFileRevisionEnabled();
2059                 break;
2060
2061         case LFUN_SERVER_GOTO_FILE_ROW:
2062         case LFUN_LYX_ACTIVATE:
2063                 break;
2064         case LFUN_FORWARD_SEARCH:
2065                 enable = !(lyxrc.forward_search_dvi.empty() && lyxrc.forward_search_pdf.empty());
2066                 break;
2067
2068         case LFUN_FILE_INSERT_PLAINTEXT:
2069         case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2070                 enable = documentBufferView() && documentBufferView()->cursor().inTexted();
2071                 break;
2072
2073         case LFUN_SPELLING_CONTINUOUSLY:
2074                 flag.setOnOff(lyxrc.spellcheck_continuously);
2075                 break;
2076
2077         default:
2078                 return false;
2079         }
2080
2081         if (!enable)
2082                 flag.setEnabled(false);
2083
2084         return true;
2085 }
2086
2087
2088 static FileName selectTemplateFile()
2089 {
2090         FileDialog dlg(qt_("Select template file"));
2091         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2092         dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2093
2094         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
2095                                  QStringList(qt_("LyX Documents (*.lyx)")));
2096
2097         if (result.first == FileDialog::Later)
2098                 return FileName();
2099         if (result.second.isEmpty())
2100                 return FileName();
2101         return FileName(fromqstr(result.second));
2102 }
2103
2104
2105 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
2106 {
2107         setBusy(true);
2108
2109         Buffer * newBuffer = 0;
2110         try {
2111                 newBuffer = checkAndLoadLyXFile(filename);
2112         } catch (ExceptionMessage const & e) {
2113                 setBusy(false);
2114                 throw(e);
2115         }
2116         setBusy(false);
2117
2118         if (!newBuffer) {
2119                 message(_("Document not loaded."));
2120                 return 0;
2121         }
2122
2123         setBuffer(newBuffer);
2124         newBuffer->errors("Parse");
2125
2126         if (tolastfiles)
2127                 theSession().lastFiles().add(filename);
2128
2129         return newBuffer;
2130 }
2131
2132
2133 void GuiView::openDocument(string const & fname)
2134 {
2135         string initpath = lyxrc.document_path;
2136
2137         if (documentBufferView()) {
2138                 string const trypath = documentBufferView()->buffer().filePath();
2139                 // If directory is writeable, use this as default.
2140                 if (FileName(trypath).isDirWritable())
2141                         initpath = trypath;
2142         }
2143
2144         string filename;
2145
2146         if (fname.empty()) {
2147                 FileDialog dlg(qt_("Select document to open"));
2148                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2149                 dlg.setButton2(qt_("Examples|#E#e"),
2150                                 toqstr(addPath(package().system_support().absFileName(), "examples")));
2151
2152                 QStringList const filter(qt_("LyX Documents (*.lyx)"));
2153                 FileDialog::Result result =
2154                         dlg.open(toqstr(initpath), filter);
2155
2156                 if (result.first == FileDialog::Later)
2157                         return;
2158
2159                 filename = fromqstr(result.second);
2160
2161                 // check selected filename
2162                 if (filename.empty()) {
2163                         message(_("Canceled."));
2164                         return;
2165                 }
2166         } else
2167                 filename = fname;
2168
2169         // get absolute path of file and add ".lyx" to the filename if
2170         // necessary.
2171         FileName const fullname =
2172                         fileSearch(string(), filename, "lyx", support::may_not_exist);
2173         if (!fullname.empty())
2174                 filename = fullname.absFileName();
2175
2176         if (!fullname.onlyPath().isDirectory()) {
2177                 Alert::warning(_("Invalid filename"),
2178                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
2179                                 from_utf8(fullname.absFileName())));
2180                 return;
2181         }
2182
2183         // if the file doesn't exist and isn't already open (bug 6645),
2184         // let the user create one
2185         if (!fullname.exists() && !theBufferList().exists(fullname) &&
2186             !LyXVC::file_not_found_hook(fullname)) {
2187                 // the user specifically chose this name. Believe him.
2188                 Buffer * const b = newFile(filename, string(), true);
2189                 if (b)
2190                         setBuffer(b);
2191                 return;
2192         }
2193
2194         docstring const disp_fn = makeDisplayPath(filename);
2195         message(bformat(_("Opening document %1$s..."), disp_fn));
2196
2197         docstring str2;
2198         Buffer * buf = loadDocument(fullname);
2199         if (buf) {
2200                 str2 = bformat(_("Document %1$s opened."), disp_fn);
2201                 if (buf->lyxvc().inUse())
2202                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
2203                                 " " + _("Version control detected.");
2204         } else {
2205                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
2206         }
2207         message(str2);
2208 }
2209
2210 // FIXME: clean that
2211 static bool import(GuiView * lv, FileName const & filename,
2212         string const & format, ErrorList & errorList)
2213 {
2214         FileName const lyxfile(support::changeExtension(filename.absFileName(), ".lyx"));
2215
2216         string loader_format;
2217         vector<string> loaders = theConverters().loaders();
2218         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
2219                 vector<string>::const_iterator it = loaders.begin();
2220                 vector<string>::const_iterator en = loaders.end();
2221                 for (; it != en; ++it) {
2222                         if (!theConverters().isReachable(format, *it))
2223                                 continue;
2224
2225                         string const tofile =
2226                                 support::changeExtension(filename.absFileName(),
2227                                 formats.extension(*it));
2228                         if (!theConverters().convert(0, filename, FileName(tofile),
2229                                 filename, format, *it, errorList))
2230                                 return false;
2231                         loader_format = *it;
2232                         break;
2233                 }
2234                 if (loader_format.empty()) {
2235                         frontend::Alert::error(_("Couldn't import file"),
2236                                          bformat(_("No information for importing the format %1$s."),
2237                                          formats.prettyName(format)));
2238                         return false;
2239                 }
2240         } else
2241                 loader_format = format;
2242
2243         if (loader_format == "lyx") {
2244                 Buffer * buf = lv->loadDocument(lyxfile);
2245                 if (!buf)
2246                         return false;
2247         } else {
2248                 Buffer * const b = newFile(lyxfile.absFileName(), string(), true);
2249                 if (!b)
2250                         return false;
2251                 lv->setBuffer(b);
2252                 bool as_paragraphs = loader_format == "textparagraph";
2253                 string filename2 = (loader_format == format) ? filename.absFileName()
2254                         : support::changeExtension(filename.absFileName(),
2255                                           formats.extension(loader_format));
2256                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
2257                         as_paragraphs);
2258                 guiApp->setCurrentView(lv);
2259                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
2260         }
2261
2262         return true;
2263 }
2264
2265
2266 void GuiView::importDocument(string const & argument)
2267 {
2268         string format;
2269         string filename = split(argument, format, ' ');
2270
2271         LYXERR(Debug::INFO, format << " file: " << filename);
2272
2273         // need user interaction
2274         if (filename.empty()) {
2275                 string initpath = lyxrc.document_path;
2276                 if (documentBufferView()) {
2277                         string const trypath = documentBufferView()->buffer().filePath();
2278                         // If directory is writeable, use this as default.
2279                         if (FileName(trypath).isDirWritable())
2280                                 initpath = trypath;
2281                 }
2282
2283                 docstring const text = bformat(_("Select %1$s file to import"),
2284                         formats.prettyName(format));
2285
2286                 FileDialog dlg(toqstr(text));
2287                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2288                 dlg.setButton2(qt_("Examples|#E#e"),
2289                         toqstr(addPath(package().system_support().absFileName(), "examples")));
2290
2291                 docstring filter = formats.prettyName(format);
2292                 filter += " (*.{";
2293                 // FIXME UNICODE
2294                 filter += from_utf8(formats.extensions(format));
2295                 filter += "})";
2296
2297                 FileDialog::Result result =
2298                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
2299
2300                 if (result.first == FileDialog::Later)
2301                         return;
2302
2303                 filename = fromqstr(result.second);
2304
2305                 // check selected filename
2306                 if (filename.empty())
2307                         message(_("Canceled."));
2308         }
2309
2310         if (filename.empty())
2311                 return;
2312
2313         // get absolute path of file
2314         FileName const fullname(support::makeAbsPath(filename));
2315
2316         // Can happen if the user entered a path into the dialog
2317         // (see bug #7437)
2318         if (fullname.onlyFileName().empty()) {
2319                 docstring msg = bformat(_("The file name '%1$s' is invalid!\n"
2320                                           "Aborting import."),
2321                                         from_utf8(fullname.absFileName()));
2322                 frontend::Alert::error(_("File name error"), msg);
2323                 message(_("Canceled."));
2324                 return;
2325         }
2326
2327
2328         FileName const lyxfile(support::changeExtension(fullname.absFileName(), ".lyx"));
2329
2330         // Check if the document already is open
2331         Buffer * buf = theBufferList().getBuffer(lyxfile);
2332         if (buf) {
2333                 setBuffer(buf);
2334                 if (!closeBuffer()) {
2335                         message(_("Canceled."));
2336                         return;
2337                 }
2338         }
2339
2340         docstring const displaypath = makeDisplayPath(lyxfile.absFileName(), 30);
2341
2342         // if the file exists already, and we didn't do
2343         // -i lyx thefile.lyx, warn
2344         if (lyxfile.exists() && fullname != lyxfile) {
2345
2346                 docstring text = bformat(_("The document %1$s already exists.\n\n"
2347                         "Do you want to overwrite that document?"), displaypath);
2348                 int const ret = Alert::prompt(_("Overwrite document?"),
2349                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
2350
2351                 if (ret == 1) {
2352                         message(_("Canceled."));
2353                         return;
2354                 }
2355         }
2356
2357         message(bformat(_("Importing %1$s..."), displaypath));
2358         ErrorList errorList;
2359         if (import(this, fullname, format, errorList))
2360                 message(_("imported."));
2361         else
2362                 message(_("file not imported!"));
2363
2364         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
2365 }
2366
2367
2368 void GuiView::newDocument(string const & filename, bool from_template)
2369 {
2370         FileName initpath(lyxrc.document_path);
2371         if (documentBufferView()) {
2372                 FileName const trypath(documentBufferView()->buffer().filePath());
2373                 // If directory is writeable, use this as default.
2374                 if (trypath.isDirWritable())
2375                         initpath = trypath;
2376         }
2377
2378         string templatefile;
2379         if (from_template) {
2380                 templatefile = selectTemplateFile().absFileName();
2381                 if (templatefile.empty())
2382                         return;
2383         }
2384
2385         Buffer * b;
2386         if (filename.empty())
2387                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
2388         else
2389                 b = newFile(filename, templatefile, true);
2390
2391         if (b)
2392                 setBuffer(b);
2393
2394         // If no new document could be created, it is unsure
2395         // whether there is a valid BufferView.
2396         if (currentBufferView())
2397                 // Ensure the cursor is correctly positioned on screen.
2398                 currentBufferView()->showCursor();
2399 }
2400
2401
2402 void GuiView::insertLyXFile(docstring const & fname)
2403 {
2404         BufferView * bv = documentBufferView();
2405         if (!bv)
2406                 return;
2407
2408         // FIXME UNICODE
2409         FileName filename(to_utf8(fname));
2410         if (filename.empty()) {
2411                 // Launch a file browser
2412                 // FIXME UNICODE
2413                 string initpath = lyxrc.document_path;
2414                 string const trypath = bv->buffer().filePath();
2415                 // If directory is writeable, use this as default.
2416                 if (FileName(trypath).isDirWritable())
2417                         initpath = trypath;
2418
2419                 // FIXME UNICODE
2420                 FileDialog dlg(qt_("Select LyX document to insert"));
2421                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2422                 dlg.setButton2(qt_("Examples|#E#e"),
2423                         toqstr(addPath(package().system_support().absFileName(),
2424                         "examples")));
2425
2426                 FileDialog::Result result = dlg.open(toqstr(initpath),
2427                                          QStringList(qt_("LyX Documents (*.lyx)")));
2428
2429                 if (result.first == FileDialog::Later)
2430                         return;
2431
2432                 // FIXME UNICODE
2433                 filename.set(fromqstr(result.second));
2434
2435                 // check selected filename
2436                 if (filename.empty()) {
2437                         // emit message signal.
2438                         message(_("Canceled."));
2439                         return;
2440                 }
2441         }
2442
2443         bv->insertLyXFile(filename);
2444         bv->buffer().errors("Parse");
2445 }
2446
2447
2448 bool GuiView::renameBuffer(Buffer & b, docstring const & newname, RenameKind kind)
2449 {
2450         FileName fname = b.fileName();
2451         FileName const oldname = fname;
2452
2453         if (!newname.empty()) {
2454                 // FIXME UNICODE
2455                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFileName());
2456         } else {
2457                 // Switch to this Buffer.
2458                 setBuffer(&b);
2459
2460                 // No argument? Ask user through dialog.
2461                 // FIXME UNICODE
2462                 FileDialog dlg(qt_("Choose a filename to save document as"));
2463                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2464                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
2465
2466                 if (!isLyXFileName(fname.absFileName()))
2467                         fname.changeExtension(".lyx");
2468
2469                 FileDialog::Result result =
2470                         dlg.save(toqstr(fname.onlyPath().absFileName()),
2471                                    QStringList(qt_("LyX Documents (*.lyx)")),
2472                                          toqstr(fname.onlyFileName()));
2473
2474                 if (result.first == FileDialog::Later)
2475                         return false;
2476
2477                 fname.set(fromqstr(result.second));
2478
2479                 if (fname.empty())
2480                         return false;
2481
2482                 if (!isLyXFileName(fname.absFileName()))
2483                         fname.changeExtension(".lyx");
2484         }
2485
2486         // fname is now the new Buffer location.
2487
2488         // if there is already a Buffer open with this name, we do not want
2489         // to have another one. (the second test makes sure we're not just
2490         // trying to overwrite ourselves, which is fine.)
2491         if (theBufferList().exists(fname) && fname != oldname
2492                   && theBufferList().getBuffer(fname) != &b) {
2493                 docstring const text =
2494                         bformat(_("The file\n%1$s\nis already open in your current session.\n"
2495                             "Please close it before attempting to overwrite it.\n"
2496                             "Do you want to choose a new filename?"),
2497                                 from_utf8(fname.absFileName()));
2498                 int const ret = Alert::prompt(_("Chosen File Already Open"),
2499                         text, 0, 1, _("&Rename"), _("&Cancel"));
2500                 switch (ret) {
2501                 case 0: return renameBuffer(b, docstring(), kind);
2502                 case 1: return false;
2503                 }
2504                 //return false;
2505         }
2506
2507         bool const existsLocal = fname.exists();
2508         bool const existsInVC = LyXVC::fileInVC(fname);
2509         if (existsLocal || existsInVC) {
2510                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2511                 if (kind != LV_WRITE_AS && existsInVC) {
2512                         // renaming to a name that is already in VC
2513                         // would not work
2514                         docstring text = bformat(_("The document %1$s "
2515                                         "is already registered.\n\n"
2516                                         "Do you want to choose a new name?"),
2517                                 file);
2518                         docstring const title = (kind == LV_VC_RENAME) ?
2519                                 _("Rename document?") : _("Copy document?");
2520                         docstring const button = (kind == LV_VC_RENAME) ?
2521                                 _("&Rename") : _("&Copy");
2522                         int const ret = Alert::prompt(title, text, 0, 1,
2523                                 button, _("&Cancel"));
2524                         switch (ret) {
2525                         case 0: return renameBuffer(b, docstring(), kind);
2526                         case 1: return false;
2527                         }
2528                 }
2529
2530                 if (existsLocal) {
2531                         docstring text = bformat(_("The document %1$s "
2532                                         "already exists.\n\n"
2533                                         "Do you want to overwrite that document?"),
2534                                 file);
2535                         int const ret = Alert::prompt(_("Overwrite document?"),
2536                                         text, 0, 2, _("&Overwrite"),
2537                                         _("&Rename"), _("&Cancel"));
2538                         switch (ret) {
2539                         case 0: break;
2540                         case 1: return renameBuffer(b, docstring(), kind);
2541                         case 2: return false;
2542                         }
2543                 }
2544         }
2545
2546         switch (kind) {
2547         case LV_VC_RENAME: {
2548                 string msg = b.lyxvc().rename(fname);
2549                 if (msg.empty())
2550                         return false;
2551                 message(from_utf8(msg));
2552                 break;
2553         }
2554         case LV_VC_COPY: {
2555                 string msg = b.lyxvc().copy(fname);
2556                 if (msg.empty())
2557                         return false;
2558                 message(from_utf8(msg));
2559                 break;
2560         }
2561         case LV_WRITE_AS:
2562                 break;
2563         }
2564         // LyXVC created the file already in case of LV_VC_RENAME or
2565         // LV_VC_COPY, but call saveBuffer() nevertheless to get
2566         // relative paths of included stuff right if we moved e.g. from
2567         // /a/b.lyx to /a/c/b.lyx.
2568
2569         bool const saved = saveBuffer(b, fname);
2570         if (saved)
2571                 b.reload();
2572         return saved;
2573 }
2574
2575
2576 bool GuiView::exportBufferAs(Buffer & b, docstring const & iformat)
2577 {
2578         FileName fname = b.fileName();
2579
2580         FileDialog dlg(qt_("Choose a filename to export the document as"));
2581         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
2582
2583         QStringList types;
2584         QString const anyformat = qt_("Guess from extension (*.*)");
2585         types << anyformat;
2586
2587         vector<Format const *> export_formats;
2588         for (Format const & f : formats)
2589                 if (f.documentFormat())
2590                         export_formats.push_back(&f);
2591         sort(export_formats.begin(), export_formats.end(), Format::formatSorter);
2592         map<QString, string> fmap;
2593         QString filter;
2594         string ext;
2595         for (Format const * f : export_formats) {
2596                 docstring const loc_prettyname = translateIfPossible(f->prettyname());
2597                 QString const loc_filter = toqstr(bformat(from_ascii("%1$s (*.%2$s)"),
2598                                                      loc_prettyname,
2599                                                      from_ascii(f->extension())));
2600                 types << loc_filter;
2601                 fmap[loc_filter] = f->name();
2602                 if (from_ascii(f->name()) == iformat) {
2603                         filter = loc_filter;
2604                         ext = f->extension();
2605                 }
2606         }
2607         string ofname = fname.onlyFileName();
2608         if (!ext.empty())
2609                 ofname = support::changeExtension(ofname, ext);
2610         FileDialog::Result result =
2611                 dlg.save(toqstr(fname.onlyPath().absFileName()),
2612                          types,
2613                          toqstr(ofname),
2614                          &filter);
2615         if (result.first != FileDialog::Chosen)
2616                 return false;
2617
2618         string fmt_name;
2619         fname.set(fromqstr(result.second));
2620         if (filter == anyformat)
2621                 fmt_name = formats.getFormatFromExtension(fname.extension());
2622         else
2623                 fmt_name = fmap[filter];
2624         LYXERR(Debug::FILES, "filter=" << fromqstr(filter)
2625                << ", fmt_name=" << fmt_name << ", fname=" << fname.absFileName());
2626
2627         if (fmt_name.empty() || fname.empty())
2628                 return false;
2629
2630         // fname is now the new Buffer location.
2631         if (FileName(fname).exists()) {
2632                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2633                 docstring text = bformat(_("The document %1$s already "
2634                                            "exists.\n\nDo you want to "
2635                                            "overwrite that document?"),
2636                                          file);
2637                 int const ret = Alert::prompt(_("Overwrite document?"),
2638                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2639                 switch (ret) {
2640                 case 0: break;
2641                 case 1: return exportBufferAs(b, from_ascii(fmt_name));
2642                 case 2: return false;
2643                 }
2644         }
2645
2646         FuncRequest cmd(LFUN_BUFFER_EXPORT, fmt_name + " " + fname.absFileName());
2647         DispatchResult dr;
2648         dispatch(cmd, dr);
2649         return dr.dispatched();
2650 }
2651
2652
2653 bool GuiView::saveBuffer(Buffer & b)
2654 {
2655         return saveBuffer(b, FileName());
2656 }
2657
2658
2659 bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
2660 {
2661         if (workArea(b) && workArea(b)->inDialogMode())
2662                 return true;
2663
2664         if (fn.empty() && b.isUnnamed())
2665                 return renameBuffer(b, docstring());
2666
2667         bool const success = (fn.empty() ? b.save() : b.saveAs(fn));
2668         if (success) {
2669                 theSession().lastFiles().add(b.fileName());
2670                 return true;
2671         }
2672
2673         // Switch to this Buffer.
2674         setBuffer(&b);
2675
2676         // FIXME: we don't tell the user *WHY* the save failed !!
2677         docstring const file = makeDisplayPath(b.absFileName(), 30);
2678         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2679                                    "Do you want to rename the document and "
2680                                    "try again?"), file);
2681         int const ret = Alert::prompt(_("Rename and save?"),
2682                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2683         switch (ret) {
2684         case 0:
2685                 if (!renameBuffer(b, docstring()))
2686                         return false;
2687                 break;
2688         case 1:
2689                 break;
2690         case 2:
2691                 return false;
2692         }
2693
2694         return saveBuffer(b, fn);
2695 }
2696
2697
2698 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2699 {
2700         return closeWorkArea(wa, false);
2701 }
2702
2703
2704 // We only want to close the buffer if it is not visible in other workareas
2705 // of the same view, nor in other views, and if this is not a child
2706 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2707 {
2708         Buffer & buf = wa->bufferView().buffer();
2709
2710         bool last_wa = d.countWorkAreasOf(buf) == 1
2711                 && !inOtherView(buf) && !buf.parent();
2712
2713         bool close_buffer = last_wa;
2714
2715         if (last_wa) {
2716                 if (lyxrc.close_buffer_with_last_view == "yes")
2717                         ; // Nothing to do
2718                 else if (lyxrc.close_buffer_with_last_view == "no")
2719                         close_buffer = false;
2720                 else {
2721                         docstring file;
2722                         if (buf.isUnnamed())
2723                                 file = from_utf8(buf.fileName().onlyFileName());
2724                         else
2725                                 file = buf.fileName().displayName(30);
2726                         docstring const text = bformat(
2727                                 _("Last view on document %1$s is being closed.\n"
2728                                   "Would you like to close or hide the document?\n"
2729                                   "\n"
2730                                   "Hidden documents can be displayed back through\n"
2731                                   "the menu: View->Hidden->...\n"
2732                                   "\n"
2733                                   "To remove this question, set your preference in:\n"
2734                                   "  Tools->Preferences->Look&Feel->UserInterface\n"
2735                                 ), file);
2736                         int ret = Alert::prompt(_("Close or hide document?"),
2737                                 text, 0, 1, _("&Close"), _("&Hide"));
2738                         close_buffer = (ret == 0);
2739                 }
2740         }
2741
2742         return closeWorkArea(wa, close_buffer);
2743 }
2744
2745
2746 bool GuiView::closeBuffer()
2747 {
2748         GuiWorkArea * wa = currentMainWorkArea();
2749         // coverity complained about this
2750         // it seems unnecessary, but perhaps is worth the check
2751         LASSERT(wa, return false);
2752
2753         setCurrentWorkArea(wa);
2754         Buffer & buf = wa->bufferView().buffer();
2755         return closeWorkArea(wa, !buf.parent());
2756 }
2757
2758
2759 void GuiView::writeSession() const {
2760         GuiWorkArea const * active_wa = currentMainWorkArea();
2761         for (int i = 0; i < d.splitter_->count(); ++i) {
2762                 TabWorkArea * twa = d.tabWorkArea(i);
2763                 for (int j = 0; j < twa->count(); ++j) {
2764                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
2765                         Buffer & buf = wa->bufferView().buffer();
2766                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2767                 }
2768         }
2769 }
2770
2771
2772 bool GuiView::closeBufferAll()
2773 {
2774         // Close the workareas in all other views
2775         QList<int> const ids = guiApp->viewIds();
2776         for (int i = 0; i != ids.size(); ++i) {
2777                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2778                         return false;
2779         }
2780
2781         // Close our own workareas
2782         if (!closeWorkAreaAll())
2783                 return false;
2784
2785         // Now close the hidden buffers. We prevent hidden buffers from being
2786         // dirty, so we can just close them.
2787         theBufferList().closeAll();
2788         return true;
2789 }
2790
2791
2792 bool GuiView::closeWorkAreaAll()
2793 {
2794         setCurrentWorkArea(currentMainWorkArea());
2795
2796         // We might be in a situation that there is still a tabWorkArea, but
2797         // there are no tabs anymore. This can happen when we get here after a
2798         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2799         // many TabWorkArea's have no documents anymore.
2800         int empty_twa = 0;
2801
2802         // We have to call count() each time, because it can happen that
2803         // more than one splitter will disappear in one iteration (bug 5998).
2804         while (d.splitter_->count() > empty_twa) {
2805                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2806
2807                 if (twa->count() == 0)
2808                         ++empty_twa;
2809                 else {
2810                         setCurrentWorkArea(twa->currentWorkArea());
2811                         if (!closeTabWorkArea(twa))
2812                                 return false;
2813                 }
2814         }
2815         return true;
2816 }
2817
2818
2819 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2820 {
2821         if (!wa)
2822                 return false;
2823
2824         Buffer & buf = wa->bufferView().buffer();
2825
2826         if (GuiViewPrivate::busyBuffers.contains(&buf)) {
2827                 Alert::warning(_("Close document"),
2828                         _("Document could not be closed because it is being processed by LyX."));
2829                 return false;
2830         }
2831
2832         if (close_buffer)
2833                 return closeBuffer(buf);
2834         else {
2835                 if (!inMultiTabs(wa))
2836                         if (!saveBufferIfNeeded(buf, true))
2837                                 return false;
2838                 removeWorkArea(wa);
2839                 return true;
2840         }
2841 }
2842
2843
2844 bool GuiView::closeBuffer(Buffer & buf)
2845 {
2846         // If we are in a close_event all children will be closed in some time,
2847         // so no need to do it here. This will ensure that the children end up
2848         // in the session file in the correct order. If we close the master
2849         // buffer, we can close or release the child buffers here too.
2850         bool success = true;
2851         if (!closing_) {
2852                 ListOfBuffers clist = buf.getChildren();
2853                 ListOfBuffers::const_iterator it = clist.begin();
2854                 ListOfBuffers::const_iterator const bend = clist.end();
2855                 for (; it != bend; ++it) {
2856                         Buffer * child_buf = *it;
2857                         if (theBufferList().isOthersChild(&buf, child_buf)) {
2858                                 child_buf->setParent(0);
2859                                 continue;
2860                         }
2861
2862                         // FIXME: should we look in other tabworkareas?
2863                         // ANSWER: I don't think so. I've tested, and if the child is
2864                         // open in some other window, it closes without a problem.
2865                         GuiWorkArea * child_wa = workArea(*child_buf);
2866                         if (child_wa) {
2867                                 success = closeWorkArea(child_wa, true);
2868                                 if (!success)
2869                                         break;
2870                         } else {
2871                                 // In this case the child buffer is open but hidden.
2872                                 // It therefore should not (MUST NOT) be dirty!
2873                                 LATTEST(child_buf->isClean());
2874                                 theBufferList().release(child_buf);
2875                         }
2876                 }
2877         }
2878         if (success) {
2879                 // goto bookmark to update bookmark pit.
2880                 // FIXME: we should update only the bookmarks related to this buffer!
2881                 LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2882                 for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2883                         guiApp->gotoBookmark(i+1, false, false);
2884
2885                 if (saveBufferIfNeeded(buf, false)) {
2886                         buf.removeAutosaveFile();
2887                         theBufferList().release(&buf);
2888                         return true;
2889                 }
2890         }
2891         // open all children again to avoid a crash because of dangling
2892         // pointers (bug 6603)
2893         buf.updateBuffer();
2894         return false;
2895 }
2896
2897
2898 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2899 {
2900         while (twa == d.currentTabWorkArea()) {
2901                 twa->setCurrentIndex(twa->count() - 1);
2902
2903                 GuiWorkArea * wa = twa->currentWorkArea();
2904                 Buffer & b = wa->bufferView().buffer();
2905
2906                 // We only want to close the buffer if the same buffer is not visible
2907                 // in another view, and if this is not a child and if we are closing
2908                 // a view (not a tabgroup).
2909                 bool const close_buffer =
2910                         !inOtherView(b) && !b.parent() && closing_;
2911
2912                 if (!closeWorkArea(wa, close_buffer))
2913                         return false;
2914         }
2915         return true;
2916 }
2917
2918
2919 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2920 {
2921         if (buf.isClean() || buf.paragraphs().empty())
2922                 return true;
2923
2924         // Switch to this Buffer.
2925         setBuffer(&buf);
2926
2927         docstring file;
2928         // FIXME: Unicode?
2929         if (buf.isUnnamed())
2930                 file = from_utf8(buf.fileName().onlyFileName());
2931         else
2932                 file = buf.fileName().displayName(30);
2933
2934         // Bring this window to top before asking questions.
2935         raise();
2936         activateWindow();
2937
2938         int ret;
2939         if (hiding && buf.isUnnamed()) {
2940                 docstring const text = bformat(_("The document %1$s has not been "
2941                                                  "saved yet.\n\nDo you want to save "
2942                                                  "the document?"), file);
2943                 ret = Alert::prompt(_("Save new document?"),
2944                         text, 0, 1, _("&Save"), _("&Cancel"));
2945                 if (ret == 1)
2946                         ++ret;
2947         } else {
2948                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2949                         "\n\nDo you want to save the document or discard the changes?"), file);
2950                 ret = Alert::prompt(_("Save changed document?"),
2951                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2952         }
2953
2954         switch (ret) {
2955         case 0:
2956                 if (!saveBuffer(buf))
2957                         return false;
2958                 break;
2959         case 1:
2960                 // If we crash after this we could have no autosave file
2961                 // but I guess this is really improbable (Jug).
2962                 // Sometimes improbable things happen:
2963                 // - see bug http://www.lyx.org/trac/ticket/6587 (ps)
2964                 // buf.removeAutosaveFile();
2965                 if (hiding)
2966                         // revert all changes
2967                         reloadBuffer(buf);
2968                 buf.markClean();
2969                 break;
2970         case 2:
2971                 return false;
2972         }
2973         return true;
2974 }
2975
2976
2977 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2978 {
2979         Buffer & buf = wa->bufferView().buffer();
2980
2981         for (int i = 0; i != d.splitter_->count(); ++i) {
2982                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2983                 if (wa_ && wa_ != wa)
2984                         return true;
2985         }
2986         return inOtherView(buf);
2987 }
2988
2989
2990 bool GuiView::inOtherView(Buffer & buf)
2991 {
2992         QList<int> const ids = guiApp->viewIds();
2993
2994         for (int i = 0; i != ids.size(); ++i) {
2995                 if (id_ == ids[i])
2996                         continue;
2997
2998                 if (guiApp->view(ids[i]).workArea(buf))
2999                         return true;
3000         }
3001         return false;
3002 }
3003
3004
3005 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move)
3006 {
3007         if (!documentBufferView())
3008                 return;
3009
3010         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3011                 Buffer * const curbuf = &documentBufferView()->buffer();
3012                 int nwa = twa->count();
3013                 for (int i = 0; i < nwa; ++i) {
3014                         if (&workArea(i)->bufferView().buffer() == curbuf) {
3015                                 int next_index;
3016                                 if (np == NEXTBUFFER)
3017                                         next_index = (i == nwa - 1 ? 0 : i + 1);
3018                                 else
3019                                         next_index = (i == 0 ? nwa - 1 : i - 1);
3020                                 if (move)
3021                                         twa->moveTab(i, next_index);
3022                                 else
3023                                         setBuffer(&workArea(next_index)->bufferView().buffer());
3024                                 break;
3025                         }
3026                 }
3027         }
3028 }
3029
3030
3031 /// make sure the document is saved
3032 static bool ensureBufferClean(Buffer * buffer)
3033 {
3034         LASSERT(buffer, return false);
3035         if (buffer->isClean() && !buffer->isUnnamed())
3036                 return true;
3037
3038         docstring const file = buffer->fileName().displayName(30);
3039         docstring title;
3040         docstring text;
3041         if (!buffer->isUnnamed()) {
3042                 text = bformat(_("The document %1$s has unsaved "
3043                                                  "changes.\n\nDo you want to save "
3044                                                  "the document?"), file);
3045                 title = _("Save changed document?");
3046
3047         } else {
3048                 text = bformat(_("The document %1$s has not been "
3049                                                  "saved yet.\n\nDo you want to save "
3050                                                  "the document?"), file);
3051                 title = _("Save new document?");
3052         }
3053         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
3054
3055         if (ret == 0)
3056                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
3057
3058         return buffer->isClean() && !buffer->isUnnamed();
3059 }
3060
3061
3062 bool GuiView::reloadBuffer(Buffer & buf)
3063 {
3064         Buffer::ReadStatus status = buf.reload();
3065         return status == Buffer::ReadSuccess;
3066 }
3067
3068
3069 void GuiView::checkExternallyModifiedBuffers()
3070 {
3071         BufferList::iterator bit = theBufferList().begin();
3072         BufferList::iterator const bend = theBufferList().end();
3073         for (; bit != bend; ++bit) {
3074                 Buffer * buf = *bit;
3075                 if (buf->fileName().exists()
3076                         && buf->isExternallyModified(Buffer::checksum_method)) {
3077                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
3078                                         " Reload now? Any local changes will be lost."),
3079                                         from_utf8(buf->absFileName()));
3080                         int const ret = Alert::prompt(_("Reload externally changed document?"),
3081                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
3082                         if (!ret)
3083                                 reloadBuffer(*buf);
3084                 }
3085         }
3086 }
3087
3088
3089 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
3090 {
3091         Buffer * buffer = documentBufferView()
3092                 ? &(documentBufferView()->buffer()) : 0;
3093
3094         switch (cmd.action()) {
3095         case LFUN_VC_REGISTER:
3096                 if (!buffer || !ensureBufferClean(buffer))
3097                         break;
3098                 if (!buffer->lyxvc().inUse()) {
3099                         if (buffer->lyxvc().registrer()) {
3100                                 reloadBuffer(*buffer);
3101                                 dr.clearMessageUpdate();
3102                         }
3103                 }
3104                 break;
3105
3106         case LFUN_VC_RENAME:
3107         case LFUN_VC_COPY: {
3108                 if (!buffer || !ensureBufferClean(buffer))
3109                         break;
3110                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
3111                         if (buffer->lyxvc().isCheckInWithConfirmation()) {
3112                                 // Some changes are not yet committed.
3113                                 // We test here and not in getStatus(), since
3114                                 // this test is expensive.
3115                                 string log;
3116                                 LyXVC::CommandResult ret =
3117                                         buffer->lyxvc().checkIn(log);
3118                                 dr.setMessage(log);
3119                                 if (ret == LyXVC::ErrorCommand ||
3120                                     ret == LyXVC::VCSuccess)
3121                                         reloadBuffer(*buffer);
3122                                 if (buffer->lyxvc().isCheckInWithConfirmation()) {
3123                                         frontend::Alert::error(
3124                                                 _("Revision control error."),
3125                                                 _("Document could not be checked in."));
3126                                         break;
3127                                 }
3128                         }
3129                         RenameKind const kind = (cmd.action() == LFUN_VC_RENAME) ?
3130                                 LV_VC_RENAME : LV_VC_COPY;
3131                         renameBuffer(*buffer, cmd.argument(), kind);
3132                 }
3133                 break;
3134         }
3135
3136         case LFUN_VC_CHECK_IN:
3137                 if (!buffer || !ensureBufferClean(buffer))
3138                         break;
3139                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
3140                         string log;
3141                         LyXVC::CommandResult ret = buffer->lyxvc().checkIn(log);
3142                         dr.setMessage(log);
3143                         // Only skip reloading if the checkin was cancelled or
3144                         // an error occurred before the real checkin VCS command
3145                         // was executed, since the VCS might have changed the
3146                         // file even if it could not checkin successfully.
3147                         if (ret == LyXVC::ErrorCommand || ret == LyXVC::VCSuccess)
3148                                 reloadBuffer(*buffer);
3149                 }
3150                 break;
3151
3152         case LFUN_VC_CHECK_OUT:
3153                 if (!buffer || !ensureBufferClean(buffer))
3154                         break;
3155                 if (buffer->lyxvc().inUse()) {
3156                         dr.setMessage(buffer->lyxvc().checkOut());
3157                         reloadBuffer(*buffer);
3158                 }
3159                 break;
3160
3161         case LFUN_VC_LOCKING_TOGGLE:
3162                 LASSERT(buffer, return);
3163                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
3164                         break;
3165                 if (buffer->lyxvc().inUse()) {
3166                         string res = buffer->lyxvc().lockingToggle();
3167                         if (res.empty()) {
3168                                 frontend::Alert::error(_("Revision control error."),
3169                                 _("Error when setting the locking property."));
3170                         } else {
3171                                 dr.setMessage(res);
3172                                 reloadBuffer(*buffer);
3173                         }
3174                 }
3175                 break;
3176
3177         case LFUN_VC_REVERT:
3178                 LASSERT(buffer, return);
3179                 if (buffer->lyxvc().revert()) {
3180                         reloadBuffer(*buffer);
3181                         dr.clearMessageUpdate();
3182                 }
3183                 break;
3184
3185         case LFUN_VC_UNDO_LAST:
3186                 LASSERT(buffer, return);
3187                 buffer->lyxvc().undoLast();
3188                 reloadBuffer(*buffer);
3189                 dr.clearMessageUpdate();
3190                 break;
3191
3192         case LFUN_VC_REPO_UPDATE:
3193                 LASSERT(buffer, return);
3194                 if (ensureBufferClean(buffer)) {
3195                         dr.setMessage(buffer->lyxvc().repoUpdate());
3196                         checkExternallyModifiedBuffers();
3197                 }
3198                 break;
3199
3200         case LFUN_VC_COMMAND: {
3201                 string flag = cmd.getArg(0);
3202                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
3203                         break;
3204                 docstring message;
3205                 if (contains(flag, 'M')) {
3206                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
3207                                 break;
3208                 }
3209                 string path = cmd.getArg(1);
3210                 if (contains(path, "$$p") && buffer)
3211                         path = subst(path, "$$p", buffer->filePath());
3212                 LYXERR(Debug::LYXVC, "Directory: " << path);
3213                 FileName pp(path);
3214                 if (!pp.isReadableDirectory()) {
3215                         lyxerr << _("Directory is not accessible.") << endl;
3216                         break;
3217                 }
3218                 support::PathChanger p(pp);
3219
3220                 string command = cmd.getArg(2);
3221                 if (command.empty())
3222                         break;
3223                 if (buffer) {
3224                         command = subst(command, "$$i", buffer->absFileName());
3225                         command = subst(command, "$$p", buffer->filePath());
3226                 }
3227                 command = subst(command, "$$m", to_utf8(message));
3228                 LYXERR(Debug::LYXVC, "Command: " << command);
3229                 Systemcall one;
3230                 one.startscript(Systemcall::Wait, command);
3231
3232                 if (!buffer)
3233                         break;
3234                 if (contains(flag, 'I'))
3235                         buffer->markDirty();
3236                 if (contains(flag, 'R'))
3237                         reloadBuffer(*buffer);
3238
3239                 break;
3240                 }
3241
3242         case LFUN_VC_COMPARE: {
3243                 if (cmd.argument().empty()) {
3244                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
3245                         break;
3246                 }
3247
3248                 string rev1 = cmd.getArg(0);
3249                 string f1, f2;
3250
3251                 // f1
3252                 // it seems safe to assume we have a buffer
3253                 // coverity[FORWARD_NULL]
3254                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
3255                         break;
3256
3257                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
3258                         f2 = buffer->absFileName();
3259                 } else {
3260                         string rev2 = cmd.getArg(1);
3261                         if (rev2.empty())
3262                                 break;
3263                         // f2
3264                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
3265                                 break;
3266                 }
3267
3268                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
3269                                         f1 << "\n"  << f2 << "\n" );
3270                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
3271                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
3272                 break;
3273         }
3274
3275         default:
3276                 break;
3277         }
3278 }
3279
3280
3281 void GuiView::openChildDocument(string const & fname)
3282 {
3283         LASSERT(documentBufferView(), return);
3284         Buffer & buffer = documentBufferView()->buffer();
3285         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
3286         documentBufferView()->saveBookmark(false);
3287         Buffer * child = 0;
3288         if (theBufferList().exists(filename)) {
3289                 child = theBufferList().getBuffer(filename);
3290                 setBuffer(child);
3291         } else {
3292                 message(bformat(_("Opening child document %1$s..."),
3293                         makeDisplayPath(filename.absFileName())));
3294                 child = loadDocument(filename, false);
3295         }
3296         // Set the parent name of the child document.
3297         // This makes insertion of citations and references in the child work,
3298         // when the target is in the parent or another child document.
3299         if (child)
3300                 child->setParent(&buffer);
3301 }
3302
3303
3304 bool GuiView::goToFileRow(string const & argument)
3305 {
3306         string file_name;
3307         int row;
3308         size_t i = argument.find_last_of(' ');
3309         if (i != string::npos) {
3310                 file_name = os::internal_path(trim(argument.substr(0, i)));
3311                 istringstream is(argument.substr(i + 1));
3312                 is >> row;
3313                 if (is.fail())
3314                         i = string::npos;
3315         }
3316         if (i == string::npos) {
3317                 LYXERR0("Wrong argument: " << argument);
3318                 return false;
3319         }
3320         Buffer * buf = 0;
3321         string const abstmp = package().temp_dir().absFileName();
3322         string const realtmp = package().temp_dir().realPath();
3323         // We have to use os::path_prefix_is() here, instead of
3324         // simply prefixIs(), because the file name comes from
3325         // an external application and may need case adjustment.
3326         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
3327                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
3328                 // Needed by inverse dvi search. If it is a file
3329                 // in tmpdir, call the apropriated function.
3330                 // If tmpdir is a symlink, we may have the real
3331                 // path passed back, so we correct for that.
3332                 if (!prefixIs(file_name, abstmp))
3333                         file_name = subst(file_name, realtmp, abstmp);
3334                 buf = theBufferList().getBufferFromTmp(file_name);
3335         } else {
3336                 // Must replace extension of the file to be .lyx
3337                 // and get full path
3338                 FileName const s = fileSearch(string(),
3339                                                   support::changeExtension(file_name, ".lyx"), "lyx");
3340                 // Either change buffer or load the file
3341                 if (theBufferList().exists(s))
3342                         buf = theBufferList().getBuffer(s);
3343                 else if (s.exists()) {
3344                         buf = loadDocument(s);
3345                         if (!buf)
3346                                 return false;
3347                 } else {
3348                         message(bformat(
3349                                         _("File does not exist: %1$s"),
3350                                         makeDisplayPath(file_name)));
3351                         return false;
3352                 }
3353         }
3354         if (!buf) {
3355                 message(bformat(
3356                         _("No buffer for file: %1$s."),
3357                         makeDisplayPath(file_name))
3358                 );
3359                 return false;
3360         }
3361         setBuffer(buf);
3362         documentBufferView()->setCursorFromRow(row);
3363         return true;
3364 }
3365
3366
3367 template<class T>
3368 Buffer::ExportStatus GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * clone, string const & format)
3369 {
3370         Buffer::ExportStatus const status = func(format);
3371
3372         // the cloning operation will have produced a clone of the entire set of
3373         // documents, starting from the master. so we must delete those.
3374         Buffer * mbuf = const_cast<Buffer *>(clone->masterBuffer());
3375         delete mbuf;
3376         busyBuffers.remove(orig);
3377         return status;
3378 }
3379
3380
3381 Buffer::ExportStatus GuiView::GuiViewPrivate::compileAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3382 {
3383         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3384         return runAndDestroy(lyx::bind(mem_func, clone, _1, true), orig, clone, format);
3385 }
3386
3387
3388 Buffer::ExportStatus GuiView::GuiViewPrivate::exportAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3389 {
3390         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3391         return runAndDestroy(lyx::bind(mem_func, clone, _1, false), orig, clone, format);
3392 }
3393
3394
3395 Buffer::ExportStatus GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3396 {
3397         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &) const = &Buffer::preview;
3398         return runAndDestroy(lyx::bind(mem_func, clone, _1), orig, clone, format);
3399 }
3400
3401
3402 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
3403                            string const & argument,
3404                            Buffer const * used_buffer,
3405                            docstring const & msg,
3406                            Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
3407                            Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
3408                            Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const)
3409 {
3410         if (!used_buffer)
3411                 return false;
3412
3413         string format = argument;
3414         if (format.empty())
3415                 format = used_buffer->params().getDefaultOutputFormat();
3416         processing_format = format;
3417         if (!msg.empty()) {
3418                 progress_->clearMessages();
3419                 gv_->message(msg);
3420         }
3421 #if EXPORT_in_THREAD
3422         GuiViewPrivate::busyBuffers.insert(used_buffer);
3423         Buffer * cloned_buffer = used_buffer->cloneFromMaster();
3424         if (!cloned_buffer) {
3425                 Alert::error(_("Export Error"),
3426                              _("Error cloning the Buffer."));
3427                 return false;
3428         }
3429         QFuture<Buffer::ExportStatus> f = QtConcurrent::run(
3430                                 asyncFunc,
3431                                 used_buffer,
3432                                 cloned_buffer,
3433                                 format);
3434         setPreviewFuture(f);
3435         last_export_format = used_buffer->params().bufferFormat();
3436         (void) syncFunc;
3437         (void) previewFunc;
3438         // We are asynchronous, so we don't know here anything about the success
3439         return true;
3440 #else
3441         Buffer::ExportStatus status;
3442         if (syncFunc) {
3443                 status = (used_buffer->*syncFunc)(format, true);
3444         } else if (previewFunc) {
3445                 status = (used_buffer->*previewFunc)(format);
3446         } else
3447                 return false;
3448         handleExportStatus(gv_, status, format);
3449         (void) asyncFunc;
3450         return (status == Buffer::ExportSuccess
3451                         || status == Buffer::PreviewSuccess);
3452 #endif
3453 }
3454
3455 void GuiView::dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr)
3456 {
3457         BufferView * bv = currentBufferView();
3458         LASSERT(bv, return);
3459
3460         // Let the current BufferView dispatch its own actions.
3461         bv->dispatch(cmd, dr);
3462         if (dr.dispatched())
3463                 return;
3464
3465         // Try with the document BufferView dispatch if any.
3466         BufferView * doc_bv = documentBufferView();
3467         if (doc_bv && doc_bv != bv) {
3468                 doc_bv->dispatch(cmd, dr);
3469                 if (dr.dispatched())
3470                         return;
3471         }
3472
3473         // Then let the current Cursor dispatch its own actions.
3474         bv->cursor().dispatch(cmd);
3475
3476         // update completion. We do it here and not in
3477         // processKeySym to avoid another redraw just for a
3478         // changed inline completion
3479         if (cmd.origin() == FuncRequest::KEYBOARD) {
3480                 if (cmd.action() == LFUN_SELF_INSERT
3481                         || (cmd.action() == LFUN_ERT_INSERT && bv->cursor().inMathed()))
3482                         updateCompletion(bv->cursor(), true, true);
3483                 else if (cmd.action() == LFUN_CHAR_DELETE_BACKWARD)
3484                         updateCompletion(bv->cursor(), false, true);
3485                 else
3486                         updateCompletion(bv->cursor(), false, false);
3487         }
3488
3489         dr = bv->cursor().result();
3490 }
3491
3492
3493 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
3494 {
3495         BufferView * bv = currentBufferView();
3496         // By default we won't need any update.
3497         dr.screenUpdate(Update::None);
3498         // assume cmd will be dispatched
3499         dr.dispatched(true);
3500
3501         Buffer * doc_buffer = documentBufferView()
3502                 ? &(documentBufferView()->buffer()) : 0;
3503
3504         if (cmd.origin() == FuncRequest::TOC) {
3505                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
3506                 // FIXME: do we need to pass a DispatchResult object here?
3507                 toc->doDispatch(bv->cursor(), cmd);
3508                 return;
3509         }
3510
3511         string const argument = to_utf8(cmd.argument());
3512
3513         switch(cmd.action()) {
3514                 case LFUN_BUFFER_CHILD_OPEN:
3515                         openChildDocument(to_utf8(cmd.argument()));
3516                         break;
3517
3518                 case LFUN_BUFFER_IMPORT:
3519                         importDocument(to_utf8(cmd.argument()));
3520                         break;
3521
3522                 case LFUN_BUFFER_EXPORT: {
3523                         if (!doc_buffer)
3524                                 break;
3525                         // GCC only sees strfwd.h when building merged
3526                         if (::lyx::operator==(cmd.argument(), "custom")) {
3527                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
3528                                 break;
3529                         }
3530
3531                         string const dest = cmd.getArg(1);
3532                         FileName target_dir;
3533                         if (!dest.empty() && FileName::isAbsolute(dest))
3534                                 target_dir = FileName(support::onlyPath(dest));
3535                         else
3536                                 target_dir = doc_buffer->fileName().onlyPath();
3537
3538                         if ((dest.empty() && doc_buffer->isUnnamed())
3539                             || !target_dir.isDirWritable()) {
3540                                 exportBufferAs(*doc_buffer, cmd.argument());
3541                                 break;
3542                         }
3543                         /* TODO/Review: Is it a problem to also export the children?
3544                                         See the update_unincluded flag */
3545                         d.asyncBufferProcessing(argument,
3546                                                 doc_buffer,
3547                                                 _("Exporting ..."),
3548                                                 &GuiViewPrivate::exportAndDestroy,
3549                                                 &Buffer::doExport,
3550                                                 0);
3551                         // TODO Inform user about success
3552                         break;
3553                 }
3554
3555                 case LFUN_BUFFER_EXPORT_AS: {
3556                         LASSERT(doc_buffer, break);
3557                         docstring f = cmd.argument();
3558                         if (f.empty())
3559                                 f = from_ascii(doc_buffer->params().getDefaultOutputFormat());
3560                         exportBufferAs(*doc_buffer, f);
3561                         break;
3562                 }
3563
3564                 case LFUN_BUFFER_UPDATE: {
3565                         d.asyncBufferProcessing(argument,
3566                                                 doc_buffer,
3567                                                 _("Exporting ..."),
3568                                                 &GuiViewPrivate::compileAndDestroy,
3569                                                 &Buffer::doExport,
3570                                                 0);
3571                         break;
3572                 }
3573                 case LFUN_BUFFER_VIEW: {
3574                         d.asyncBufferProcessing(argument,
3575                                                 doc_buffer,
3576                                                 _("Previewing ..."),
3577                                                 &GuiViewPrivate::previewAndDestroy,
3578                                                 0,
3579                                                 &Buffer::preview);
3580                         break;
3581                 }
3582                 case LFUN_MASTER_BUFFER_UPDATE: {
3583                         d.asyncBufferProcessing(argument,
3584                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3585                                                 docstring(),
3586                                                 &GuiViewPrivate::compileAndDestroy,
3587                                                 &Buffer::doExport,
3588                                                 0);
3589                         break;
3590                 }
3591                 case LFUN_MASTER_BUFFER_VIEW: {
3592                         d.asyncBufferProcessing(argument,
3593                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3594                                                 docstring(),
3595                                                 &GuiViewPrivate::previewAndDestroy,
3596                                                 0, &Buffer::preview);
3597                         break;
3598                 }
3599                 case LFUN_BUFFER_SWITCH: {
3600                         string const file_name = to_utf8(cmd.argument());
3601                         if (!FileName::isAbsolute(file_name)) {
3602                                 dr.setError(true);
3603                                 dr.setMessage(_("Absolute filename expected."));
3604                                 break;
3605                         }
3606
3607                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3608                         if (!buffer) {
3609                                 dr.setError(true);
3610                                 dr.setMessage(_("Document not loaded"));
3611                                 break;
3612                         }
3613
3614                         // Do we open or switch to the buffer in this view ?
3615                         if (workArea(*buffer)
3616                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3617                                 setBuffer(buffer);
3618                                 break;
3619                         }
3620
3621                         // Look for the buffer in other views
3622                         QList<int> const ids = guiApp->viewIds();
3623                         int i = 0;
3624                         for (; i != ids.size(); ++i) {
3625                                 GuiView & gv = guiApp->view(ids[i]);
3626                                 if (gv.workArea(*buffer)) {
3627                                         gv.raise();
3628                                         gv.activateWindow();
3629                                         gv.setFocus();
3630                                         gv.setBuffer(buffer);
3631                                         break;
3632                                 }
3633                         }
3634
3635                         // If necessary, open a new window as a last resort
3636                         if (i == ids.size()) {
3637                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3638                                 lyx::dispatch(cmd);
3639                         }
3640                         break;
3641                 }
3642
3643                 case LFUN_BUFFER_NEXT:
3644                         gotoNextOrPreviousBuffer(NEXTBUFFER, false);
3645                         break;
3646
3647                 case LFUN_BUFFER_MOVE_NEXT:
3648                         gotoNextOrPreviousBuffer(NEXTBUFFER, true);
3649                         break;
3650
3651                 case LFUN_BUFFER_PREVIOUS:
3652                         gotoNextOrPreviousBuffer(PREVBUFFER, false);
3653                         break;
3654
3655                 case LFUN_BUFFER_MOVE_PREVIOUS:
3656                         gotoNextOrPreviousBuffer(PREVBUFFER, true);
3657                         break;
3658
3659                 case LFUN_COMMAND_EXECUTE: {
3660                         command_execute_ = true;
3661                         minibuffer_focus_ = true;
3662                         break;
3663                 }
3664                 case LFUN_DROP_LAYOUTS_CHOICE:
3665                         d.layout_->showPopup();
3666                         break;
3667
3668                 case LFUN_MENU_OPEN:
3669                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3670                                 menu->exec(QCursor::pos());
3671                         break;
3672
3673                 case LFUN_FILE_INSERT:
3674                         insertLyXFile(cmd.argument());
3675                         break;
3676
3677                 case LFUN_FILE_INSERT_PLAINTEXT:
3678                 case LFUN_FILE_INSERT_PLAINTEXT_PARA: {
3679                         string const fname = to_utf8(cmd.argument());
3680                         if (!fname.empty() && !FileName::isAbsolute(fname)) {
3681                                 dr.setMessage(_("Absolute filename expected."));
3682                                 break;
3683                         }
3684
3685                         FileName filename(fname);
3686                         if (fname.empty()) {
3687                                 FileDialog dlg(qt_("Select file to insert"));
3688
3689                                 FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
3690                                         QStringList(qt_("All Files (*)")));
3691
3692                                 if (result.first == FileDialog::Later || result.second.isEmpty()) {
3693                                         dr.setMessage(_("Canceled."));
3694                                         break;
3695                                 }
3696
3697                                 filename.set(fromqstr(result.second));
3698                         }
3699
3700                         if (bv) {
3701                                 FuncRequest const new_cmd(cmd, filename.absoluteFilePath());
3702                                 bv->dispatch(new_cmd, dr);
3703                         }
3704                         break;
3705                 }
3706
3707                 case LFUN_BUFFER_RELOAD: {
3708                         LASSERT(doc_buffer, break);
3709
3710                         int ret = 0;
3711                         if (!doc_buffer->isClean()) {
3712                                 docstring const file =
3713                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3714                                 docstring text = bformat(_("Any changes will be lost. "
3715                                         "Are you sure you want to revert to the saved version "
3716                                         "of the document %1$s?"), file);
3717                                 ret = Alert::prompt(_("Revert to saved document?"),
3718                                         text, 1, 1, _("&Revert"), _("&Cancel"));
3719                         }
3720
3721                         if (ret == 0) {
3722                                 doc_buffer->markClean();
3723                                 reloadBuffer(*doc_buffer);
3724                                 dr.forceBufferUpdate();
3725                         }
3726                         break;
3727                 }
3728
3729                 case LFUN_BUFFER_WRITE:
3730                         LASSERT(doc_buffer, break);
3731                         saveBuffer(*doc_buffer);
3732                         break;
3733
3734                 case LFUN_BUFFER_WRITE_AS:
3735                         LASSERT(doc_buffer, break);
3736                         renameBuffer(*doc_buffer, cmd.argument());
3737                         break;
3738
3739                 case LFUN_BUFFER_WRITE_ALL: {
3740                         Buffer * first = theBufferList().first();
3741                         if (!first)
3742                                 break;
3743                         message(_("Saving all documents..."));
3744                         // We cannot use a for loop as the buffer list cycles.
3745                         Buffer * b = first;
3746                         do {
3747                                 if (!b->isClean()) {
3748                                         saveBuffer(*b);
3749                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3750                                 }
3751                                 b = theBufferList().next(b);
3752                         } while (b != first);
3753                         dr.setMessage(_("All documents saved."));
3754                         break;
3755                 }
3756
3757                 case LFUN_BUFFER_CLOSE:
3758                         closeBuffer();
3759                         break;
3760
3761                 case LFUN_BUFFER_CLOSE_ALL:
3762                         closeBufferAll();
3763                         break;
3764
3765                 case LFUN_TOOLBAR_TOGGLE: {
3766                         string const name = cmd.getArg(0);
3767                         if (GuiToolbar * t = toolbar(name))
3768                                 t->toggle();
3769                         break;
3770                 }
3771
3772                 case LFUN_DIALOG_UPDATE: {
3773                         string const name = to_utf8(cmd.argument());
3774                         if (name == "prefs" || name == "document")
3775                                 updateDialog(name, string());
3776                         else if (name == "paragraph")
3777                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3778                         else if (currentBufferView()) {
3779                                 Inset * inset = currentBufferView()->editedInset(name);
3780                                 // Can only update a dialog connected to an existing inset
3781                                 if (inset) {
3782                                         // FIXME: get rid of this indirection; GuiView ask the inset
3783                                         // if he is kind enough to update itself...
3784                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3785                                         //FIXME: pass DispatchResult here?
3786                                         inset->dispatch(currentBufferView()->cursor(), fr);
3787                                 }
3788                         }
3789                         break;
3790                 }
3791
3792                 case LFUN_DIALOG_TOGGLE: {
3793                         FuncCode const func_code = isDialogVisible(cmd.getArg(0))
3794                                 ? LFUN_DIALOG_HIDE : LFUN_DIALOG_SHOW;
3795                         dispatch(FuncRequest(func_code, cmd.argument()), dr);
3796                         break;
3797                 }
3798
3799                 case LFUN_DIALOG_DISCONNECT_INSET:
3800                         disconnectDialog(to_utf8(cmd.argument()));
3801                         break;
3802
3803                 case LFUN_DIALOG_HIDE: {
3804                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3805                         break;
3806                 }
3807
3808                 case LFUN_DIALOG_SHOW: {
3809                         string const name = cmd.getArg(0);
3810                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3811
3812                         if (name == "character") {
3813                                 data = freefont2string();
3814                                 if (!data.empty())
3815                                         showDialog("character", data);
3816                         } else if (name == "latexlog") {
3817                                 Buffer::LogType type;
3818                                 string const logfile = doc_buffer->logName(&type);
3819                                 switch (type) {
3820                                 case Buffer::latexlog:
3821                                         data = "latex ";
3822                                         break;
3823                                 case Buffer::buildlog:
3824                                         data = "literate ";
3825                                         break;
3826                                 }
3827                                 data += Lexer::quoteString(logfile);
3828                                 showDialog("log", data);
3829                         } else if (name == "vclog") {
3830                                 string const data = "vc " +
3831                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3832                                 showDialog("log", data);
3833                         } else if (name == "symbols") {
3834                                 data = bv->cursor().getEncoding()->name();
3835                                 if (!data.empty())
3836                                         showDialog("symbols", data);
3837                         // bug 5274
3838                         } else if (name == "prefs" && isFullScreen()) {
3839                                 lfunUiToggle("fullscreen");
3840                                 showDialog("prefs", data);
3841                         } else
3842                                 showDialog(name, data);
3843                         break;
3844                 }
3845
3846                 case LFUN_MESSAGE:
3847                         dr.setMessage(cmd.argument());
3848                         break;
3849
3850                 case LFUN_UI_TOGGLE: {
3851                         string arg = cmd.getArg(0);
3852                         if (!lfunUiToggle(arg)) {
3853                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3854                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3855                         }
3856                         // Make sure the keyboard focus stays in the work area.
3857                         setFocus();
3858                         break;
3859                 }
3860
3861                 case LFUN_VIEW_SPLIT: {
3862                         LASSERT(doc_buffer, break);
3863                         string const orientation = cmd.getArg(0);
3864                         d.splitter_->setOrientation(orientation == "vertical"
3865                                 ? Qt::Vertical : Qt::Horizontal);
3866                         TabWorkArea * twa = addTabWorkArea();
3867                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3868                         setCurrentWorkArea(wa);
3869                         break;
3870                 }
3871                 case LFUN_TAB_GROUP_CLOSE:
3872                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3873                                 closeTabWorkArea(twa);
3874                                 d.current_work_area_ = 0;
3875                                 twa = d.currentTabWorkArea();
3876                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3877                                 if (twa) {
3878                                         // Make sure the work area is up to date.
3879                                         setCurrentWorkArea(twa->currentWorkArea());
3880                                 } else {
3881                                         setCurrentWorkArea(0);
3882                                 }
3883                         }
3884                         break;
3885
3886                 case LFUN_VIEW_CLOSE:
3887                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3888                                 closeWorkArea(twa->currentWorkArea());
3889                                 d.current_work_area_ = 0;
3890                                 twa = d.currentTabWorkArea();
3891                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3892                                 if (twa) {
3893                                         // Make sure the work area is up to date.
3894                                         setCurrentWorkArea(twa->currentWorkArea());
3895                                 } else {
3896                                         setCurrentWorkArea(0);
3897                                 }
3898                         }
3899                         break;
3900
3901                 case LFUN_COMPLETION_INLINE:
3902                         if (d.current_work_area_)
3903                                 d.current_work_area_->completer().showInline();
3904                         break;
3905
3906                 case LFUN_COMPLETION_POPUP:
3907                         if (d.current_work_area_)
3908                                 d.current_work_area_->completer().showPopup();
3909                         break;
3910
3911
3912                 case LFUN_COMPLETE:
3913                         if (d.current_work_area_)
3914                                 d.current_work_area_->completer().tab();
3915                         break;
3916
3917                 case LFUN_COMPLETION_CANCEL:
3918                         if (d.current_work_area_) {
3919                                 if (d.current_work_area_->completer().popupVisible())
3920                                         d.current_work_area_->completer().hidePopup();
3921                                 else
3922                                         d.current_work_area_->completer().hideInline();
3923                         }
3924                         break;
3925
3926                 case LFUN_COMPLETION_ACCEPT:
3927                         if (d.current_work_area_)
3928                                 d.current_work_area_->completer().activate();
3929                         break;
3930
3931                 case LFUN_BUFFER_ZOOM_IN:
3932                 case LFUN_BUFFER_ZOOM_OUT: {
3933                         // use a signed temp to avoid overflow
3934                         int zoom = lyxrc.zoom;
3935                         if (cmd.argument().empty()) {
3936                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3937                                         zoom += 20;
3938                                 else
3939                                         zoom -= 20;
3940                         } else
3941                                 zoom += convert<int>(cmd.argument());
3942
3943                         if (zoom < 10)
3944                                 zoom = 10;
3945                         lyxrc.zoom = zoom;
3946
3947                         dr.setMessage(bformat(_("Zoom level is now %1$d%"), lyxrc.zoom));
3948
3949                         // The global QPixmapCache is used in GuiPainter to cache text
3950                         // painting so we must reset it.
3951                         QPixmapCache::clear();
3952                         guiApp->fontLoader().update();
3953                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3954                         break;
3955                 }
3956
3957                 case LFUN_VC_REGISTER:
3958                 case LFUN_VC_RENAME:
3959                 case LFUN_VC_COPY:
3960                 case LFUN_VC_CHECK_IN:
3961                 case LFUN_VC_CHECK_OUT:
3962                 case LFUN_VC_REPO_UPDATE:
3963                 case LFUN_VC_LOCKING_TOGGLE:
3964                 case LFUN_VC_REVERT:
3965                 case LFUN_VC_UNDO_LAST:
3966                 case LFUN_VC_COMMAND:
3967                 case LFUN_VC_COMPARE:
3968                         dispatchVC(cmd, dr);
3969                         break;
3970
3971                 case LFUN_SERVER_GOTO_FILE_ROW:
3972                         goToFileRow(to_utf8(cmd.argument()));
3973                         break;
3974
3975                 case LFUN_LYX_ACTIVATE:
3976                         activateWindow();
3977                         break;
3978
3979                 case LFUN_FORWARD_SEARCH: {
3980                 // it seems safe to assume we have a document buffer, since
3981                 // getStatus wants one.
3982                 // coverity[FORWARD_NULL]
3983                         Buffer const * doc_master = doc_buffer->masterBuffer();
3984                         FileName const path(doc_master->temppath());
3985                         string const texname = doc_master->isChild(doc_buffer)
3986                                 ? DocFileName(changeExtension(
3987                                         doc_buffer->absFileName(),
3988                                                 "tex")).mangledFileName()
3989                                 : doc_buffer->latexName();
3990                         string const fulltexname =
3991                                 support::makeAbsPath(texname, doc_master->temppath()).absFileName();
3992                         string const mastername =
3993                                 removeExtension(doc_master->latexName());
3994                         FileName const dviname(addName(path.absFileName(),
3995                                         addExtension(mastername, "dvi")));
3996                         FileName const pdfname(addName(path.absFileName(),
3997                                         addExtension(mastername, "pdf")));
3998                         bool const have_dvi = dviname.exists();
3999                         bool const have_pdf = pdfname.exists();
4000                         if (!have_dvi && !have_pdf) {
4001                                 dr.setMessage(_("Please, preview the document first."));
4002                                 break;
4003                         }
4004                         string outname = dviname.onlyFileName();
4005                         string command = lyxrc.forward_search_dvi;
4006                         if (!have_dvi || (have_pdf &&
4007                             pdfname.lastModified() > dviname.lastModified())) {
4008                                 outname = pdfname.onlyFileName();
4009                                 command = lyxrc.forward_search_pdf;
4010                         }
4011
4012                         DocIterator cur = bv->cursor();
4013                         int row = doc_buffer->texrow().rowFromDocIterator(cur).first;
4014                         LYXERR(Debug::ACTION, "Forward search: row:" << row
4015                                    << " cur:" << cur);
4016                         if (row == -1 || command.empty()) {
4017                                 dr.setMessage(_("Couldn't proceed."));
4018                                 break;
4019                         }
4020                         string texrow = convert<string>(row);
4021
4022                         command = subst(command, "$$n", texrow);
4023                         command = subst(command, "$$f", fulltexname);
4024                         command = subst(command, "$$t", texname);
4025                         command = subst(command, "$$o", outname);
4026
4027                         PathChanger p(path);
4028                         Systemcall one;
4029                         one.startscript(Systemcall::DontWait, command);
4030                         break;
4031                 }
4032
4033                 case LFUN_SPELLING_CONTINUOUSLY:
4034                         lyxrc.spellcheck_continuously = !lyxrc.spellcheck_continuously;
4035                         dr.screenUpdate(Update::Force | Update::FitCursor);
4036                         break;
4037
4038                 default:
4039                         // The LFUN must be for one of BufferView, Buffer or Cursor;
4040                         // let's try that:
4041                         dispatchToBufferView(cmd, dr);
4042                         break;
4043         }
4044
4045         // Part of automatic menu appearance feature.
4046         if (isFullScreen()) {
4047                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
4048                         menuBar()->hide();
4049         }
4050
4051         // Need to update bv because many LFUNs here might have destroyed it
4052         bv = currentBufferView();
4053
4054         // Clear non-empty selections
4055         // (e.g. from a "char-forward-select" followed by "char-backward-select")
4056         if (bv) {
4057                 Cursor & cur = bv->cursor();
4058                 if ((cur.selection() && cur.selBegin() == cur.selEnd())) {
4059                         cur.clearSelection();
4060                 }
4061         }
4062 }
4063
4064
4065 bool GuiView::lfunUiToggle(string const & ui_component)
4066 {
4067         if (ui_component == "scrollbar") {
4068                 // hide() is of no help
4069                 if (d.current_work_area_->verticalScrollBarPolicy() ==
4070                         Qt::ScrollBarAlwaysOff)
4071
4072                         d.current_work_area_->setVerticalScrollBarPolicy(
4073                                 Qt::ScrollBarAsNeeded);
4074                 else
4075                         d.current_work_area_->setVerticalScrollBarPolicy(
4076                                 Qt::ScrollBarAlwaysOff);
4077         } else if (ui_component == "statusbar") {
4078                 statusBar()->setVisible(!statusBar()->isVisible());
4079         } else if (ui_component == "menubar") {
4080                 menuBar()->setVisible(!menuBar()->isVisible());
4081         } else
4082         if (ui_component == "frame") {
4083                 int l, t, r, b;
4084                 getContentsMargins(&l, &t, &r, &b);
4085                 //are the frames in default state?
4086                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
4087                 if (l == 0) {
4088                         setContentsMargins(-2, -2, -2, -2);
4089                 } else {
4090                         setContentsMargins(0, 0, 0, 0);
4091                 }
4092         } else
4093         if (ui_component == "fullscreen") {
4094                 toggleFullScreen();
4095         } else
4096                 return false;
4097         return true;
4098 }
4099
4100
4101 void GuiView::toggleFullScreen()
4102 {
4103         if (isFullScreen()) {
4104                 for (int i = 0; i != d.splitter_->count(); ++i)
4105                         d.tabWorkArea(i)->setFullScreen(false);
4106                 setContentsMargins(0, 0, 0, 0);
4107                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4108                 restoreLayout();
4109                 menuBar()->show();
4110                 statusBar()->show();
4111         } else {
4112                 // bug 5274
4113                 hideDialogs("prefs", 0);
4114                 for (int i = 0; i != d.splitter_->count(); ++i)
4115                         d.tabWorkArea(i)->setFullScreen(true);
4116                 setContentsMargins(-2, -2, -2, -2);
4117                 saveLayout();
4118                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4119                 if (lyxrc.full_screen_statusbar)
4120                         statusBar()->hide();
4121                 if (lyxrc.full_screen_menubar)
4122                         menuBar()->hide();
4123                 if (lyxrc.full_screen_toolbars) {
4124                         ToolbarMap::iterator end = d.toolbars_.end();
4125                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
4126                                 it->second->hide();
4127                 }
4128         }
4129
4130         // give dialogs like the TOC a chance to adapt
4131         updateDialogs();
4132 }
4133
4134
4135 Buffer const * GuiView::updateInset(Inset const * inset)
4136 {
4137         if (!inset)
4138                 return 0;
4139
4140         Buffer const * inset_buffer = &(inset->buffer());
4141
4142         for (int i = 0; i != d.splitter_->count(); ++i) {
4143                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
4144                 if (!wa)
4145                         continue;
4146                 Buffer const * buffer = &(wa->bufferView().buffer());
4147                 if (inset_buffer == buffer)
4148                         wa->scheduleRedraw();
4149         }
4150         return inset_buffer;
4151 }
4152
4153
4154 void GuiView::restartCursor()
4155 {
4156         /* When we move around, or type, it's nice to be able to see
4157          * the cursor immediately after the keypress.
4158          */
4159         if (d.current_work_area_)
4160                 d.current_work_area_->startBlinkingCursor();
4161
4162         // Take this occasion to update the other GUI elements.
4163         updateDialogs();
4164         updateStatusBar();
4165 }
4166
4167
4168 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
4169 {
4170         if (d.current_work_area_)
4171                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
4172 }
4173
4174 namespace {
4175
4176 // This list should be kept in sync with the list of insets in
4177 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
4178 // dialog should have the same name as the inset.
4179 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
4180 // docs in LyXAction.cpp.
4181
4182 char const * const dialognames[] = {
4183
4184 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
4185 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
4186 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
4187 "href", "include", "index", "index_print", "info", "listings", "label", "line",
4188 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
4189 "nomencl_print", "note", "paragraph", "phantom", "prefs", "ref",
4190 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
4191 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
4192
4193 char const * const * const end_dialognames =
4194         dialognames + (sizeof(dialognames) / sizeof(char *));
4195
4196 class cmpCStr {
4197 public:
4198         cmpCStr(char const * name) : name_(name) {}
4199         bool operator()(char const * other) {
4200                 return strcmp(other, name_) == 0;
4201         }
4202 private:
4203         char const * name_;
4204 };
4205
4206
4207 bool isValidName(string const & name)
4208 {
4209         return find_if(dialognames, end_dialognames,
4210                                 cmpCStr(name.c_str())) != end_dialognames;
4211 }
4212
4213 } // namespace anon
4214
4215
4216 void GuiView::resetDialogs()
4217 {
4218         // Make sure that no LFUN uses any GuiView.
4219         guiApp->setCurrentView(0);
4220         saveLayout();
4221         saveUISettings();
4222         menuBar()->clear();
4223         constructToolbars();
4224         guiApp->menus().fillMenuBar(menuBar(), this, false);
4225         d.layout_->updateContents(true);
4226         // Now update controls with current buffer.
4227         guiApp->setCurrentView(this);
4228         restoreLayout();
4229         restartCursor();
4230 }
4231
4232
4233 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
4234 {
4235         if (!isValidName(name))
4236                 return 0;
4237
4238         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
4239
4240         if (it != d.dialogs_.end()) {
4241                 if (hide_it)
4242                         it->second->hideView();
4243                 return it->second.get();
4244         }
4245
4246         Dialog * dialog = build(name);
4247         d.dialogs_[name].reset(dialog);
4248         if (lyxrc.allow_geometry_session)
4249                 dialog->restoreSession();
4250         if (hide_it)
4251                 dialog->hideView();
4252         return dialog;
4253 }
4254
4255
4256 void GuiView::showDialog(string const & name, string const & data,
4257         Inset * inset)
4258 {
4259         triggerShowDialog(toqstr(name), toqstr(data), inset);
4260 }
4261
4262
4263 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
4264         Inset * inset)
4265 {
4266         if (d.in_show_)
4267                 return;
4268
4269         const string name = fromqstr(qname);
4270         const string data = fromqstr(qdata);
4271
4272         d.in_show_ = true;
4273         try {
4274                 Dialog * dialog = findOrBuild(name, false);
4275                 if (dialog) {
4276                         bool const visible = dialog->isVisibleView();
4277                         dialog->showData(data);
4278                         if (inset && currentBufferView())
4279                                 currentBufferView()->editInset(name, inset);
4280                         // We only set the focus to the new dialog if it was not yet
4281                         // visible in order not to change the existing previous behaviour
4282                         if (visible) {
4283                                 // activateWindow is needed for floating dockviews
4284                                 dialog->asQWidget()->raise();
4285                                 dialog->asQWidget()->activateWindow();
4286                                 dialog->asQWidget()->setFocus();
4287                         }
4288                 }
4289         }
4290         catch (ExceptionMessage const & ex) {
4291                 d.in_show_ = false;
4292                 throw ex;
4293         }
4294         d.in_show_ = false;
4295 }
4296
4297
4298 bool GuiView::isDialogVisible(string const & name) const
4299 {
4300         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4301         if (it == d.dialogs_.end())
4302                 return false;
4303         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
4304 }
4305
4306
4307 void GuiView::hideDialog(string const & name, Inset * inset)
4308 {
4309         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4310         if (it == d.dialogs_.end())
4311                 return;
4312
4313         if (inset) {
4314                 if (!currentBufferView())
4315                         return;
4316                 if (inset != currentBufferView()->editedInset(name))
4317                         return;
4318         }
4319
4320         Dialog * const dialog = it->second.get();
4321         if (dialog->isVisibleView())
4322                 dialog->hideView();
4323         if (currentBufferView())
4324                 currentBufferView()->editInset(name, 0);
4325 }
4326
4327
4328 void GuiView::disconnectDialog(string const & name)
4329 {
4330         if (!isValidName(name))
4331                 return;
4332         if (currentBufferView())
4333                 currentBufferView()->editInset(name, 0);
4334 }
4335
4336
4337 void GuiView::hideAll() const
4338 {
4339         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4340         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4341
4342         for(; it != end; ++it)
4343                 it->second->hideView();
4344 }
4345
4346
4347 void GuiView::updateDialogs()
4348 {
4349         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4350         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4351
4352         for(; it != end; ++it) {
4353                 Dialog * dialog = it->second.get();
4354                 if (dialog) {
4355                         if (dialog->needBufferOpen() && !documentBufferView())
4356                                 hideDialog(fromqstr(dialog->name()), 0);
4357                         else if (dialog->isVisibleView())
4358                                 dialog->checkStatus();
4359                 }
4360         }
4361         updateToolbars();
4362         updateLayoutList();
4363 }
4364
4365 Dialog * createDialog(GuiView & lv, string const & name);
4366
4367 // will be replaced by a proper factory...
4368 Dialog * createGuiAbout(GuiView & lv);
4369 Dialog * createGuiBibtex(GuiView & lv);
4370 Dialog * createGuiChanges(GuiView & lv);
4371 Dialog * createGuiCharacter(GuiView & lv);
4372 Dialog * createGuiCitation(GuiView & lv);
4373 Dialog * createGuiCompare(GuiView & lv);
4374 Dialog * createGuiCompareHistory(GuiView & lv);
4375 Dialog * createGuiDelimiter(GuiView & lv);
4376 Dialog * createGuiDocument(GuiView & lv);
4377 Dialog * createGuiErrorList(GuiView & lv);
4378 Dialog * createGuiExternal(GuiView & lv);
4379 Dialog * createGuiGraphics(GuiView & lv);
4380 Dialog * createGuiInclude(GuiView & lv);
4381 Dialog * createGuiIndex(GuiView & lv);
4382 Dialog * createGuiListings(GuiView & lv);
4383 Dialog * createGuiLog(GuiView & lv);
4384 Dialog * createGuiMathMatrix(GuiView & lv);
4385 Dialog * createGuiNote(GuiView & lv);
4386 Dialog * createGuiParagraph(GuiView & lv);
4387 Dialog * createGuiPhantom(GuiView & lv);
4388 Dialog * createGuiPreferences(GuiView & lv);
4389 Dialog * createGuiPrint(GuiView & lv);
4390 Dialog * createGuiPrintindex(GuiView & lv);
4391 Dialog * createGuiRef(GuiView & lv);
4392 Dialog * createGuiSearch(GuiView & lv);
4393 Dialog * createGuiSearchAdv(GuiView & lv);
4394 Dialog * createGuiSendTo(GuiView & lv);
4395 Dialog * createGuiShowFile(GuiView & lv);
4396 Dialog * createGuiSpellchecker(GuiView & lv);
4397 Dialog * createGuiSymbols(GuiView & lv);
4398 Dialog * createGuiTabularCreate(GuiView & lv);
4399 Dialog * createGuiTexInfo(GuiView & lv);
4400 Dialog * createGuiToc(GuiView & lv);
4401 Dialog * createGuiThesaurus(GuiView & lv);
4402 Dialog * createGuiViewSource(GuiView & lv);
4403 Dialog * createGuiWrap(GuiView & lv);
4404 Dialog * createGuiProgressView(GuiView & lv);
4405
4406
4407
4408 Dialog * GuiView::build(string const & name)
4409 {
4410         LASSERT(isValidName(name), return 0);
4411
4412         Dialog * dialog = createDialog(*this, name);
4413         if (dialog)
4414                 return dialog;
4415
4416         if (name == "aboutlyx")
4417                 return createGuiAbout(*this);
4418         if (name == "bibtex")
4419                 return createGuiBibtex(*this);
4420         if (name == "changes")
4421                 return createGuiChanges(*this);
4422         if (name == "character")
4423                 return createGuiCharacter(*this);
4424         if (name == "citation")
4425                 return createGuiCitation(*this);
4426         if (name == "compare")
4427                 return createGuiCompare(*this);
4428         if (name == "comparehistory")
4429                 return createGuiCompareHistory(*this);
4430         if (name == "document")
4431                 return createGuiDocument(*this);
4432         if (name == "errorlist")
4433                 return createGuiErrorList(*this);
4434         if (name == "external")
4435                 return createGuiExternal(*this);
4436         if (name == "file")
4437                 return createGuiShowFile(*this);
4438         if (name == "findreplace")
4439                 return createGuiSearch(*this);
4440         if (name == "findreplaceadv")
4441                 return createGuiSearchAdv(*this);
4442         if (name == "graphics")
4443                 return createGuiGraphics(*this);
4444         if (name == "include")
4445                 return createGuiInclude(*this);
4446         if (name == "index")
4447                 return createGuiIndex(*this);
4448         if (name == "index_print")
4449                 return createGuiPrintindex(*this);
4450         if (name == "listings")
4451                 return createGuiListings(*this);
4452         if (name == "log")
4453                 return createGuiLog(*this);
4454         if (name == "mathdelimiter")
4455                 return createGuiDelimiter(*this);
4456         if (name == "mathmatrix")
4457                 return createGuiMathMatrix(*this);
4458         if (name == "note")
4459                 return createGuiNote(*this);
4460         if (name == "paragraph")
4461                 return createGuiParagraph(*this);
4462         if (name == "phantom")
4463                 return createGuiPhantom(*this);
4464         if (name == "prefs")
4465                 return createGuiPreferences(*this);
4466         if (name == "ref")
4467                 return createGuiRef(*this);
4468         if (name == "sendto")
4469                 return createGuiSendTo(*this);
4470         if (name == "spellchecker")
4471                 return createGuiSpellchecker(*this);
4472         if (name == "symbols")
4473                 return createGuiSymbols(*this);
4474         if (name == "tabularcreate")
4475                 return createGuiTabularCreate(*this);
4476         if (name == "texinfo")
4477                 return createGuiTexInfo(*this);
4478         if (name == "thesaurus")
4479                 return createGuiThesaurus(*this);
4480         if (name == "toc")
4481                 return createGuiToc(*this);
4482         if (name == "view-source")
4483                 return createGuiViewSource(*this);
4484         if (name == "wrap")
4485                 return createGuiWrap(*this);
4486         if (name == "progress")
4487                 return createGuiProgressView(*this);
4488
4489         return 0;
4490 }
4491
4492
4493 } // namespace frontend
4494 } // namespace lyx
4495
4496 #include "moc_GuiView.cpp"