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         Formats::const_iterator it = formats.begin();
2587         vector<Format const *> export_formats;
2588         for (; it != formats.end(); ++it)
2589                 if (it->documentFormat())
2590                         export_formats.push_back(&(*it));
2591         sort(export_formats.begin(), export_formats.end(),
2592              [](Format const *first, Format const *second) {
2593                      QString name1 = qt_(first->prettyname());
2594                      QString name2 = qt_(second->prettyname());
2595                      return 0 < name2.localeAwareCompare(name1);
2596              });
2597         vector<Format const *>::const_iterator fit = export_formats.begin();
2598         map<QString, string> fmap;
2599         QString filter;
2600         string ext;
2601         for (; fit != export_formats.end(); ++fit) {
2602                 docstring const loc_prettyname =
2603                         translateIfPossible(from_utf8((*fit)->prettyname()));
2604                 QString const loc_filter = toqstr(bformat(from_ascii("%1$s (*.%2$s)"),
2605                                                      loc_prettyname,
2606                                                      from_ascii((*fit)->extension())));
2607                 types << loc_filter;
2608                 fmap[loc_filter] = (*fit)->name();
2609                 if (from_ascii((*fit)->name()) == iformat) {
2610                         filter = loc_filter;
2611                         ext = (*fit)->extension();
2612                 }
2613         }
2614         string ofname = fname.onlyFileName();
2615         if (!ext.empty())
2616                 ofname = support::changeExtension(ofname, ext);
2617         FileDialog::Result result =
2618                 dlg.save(toqstr(fname.onlyPath().absFileName()),
2619                          types,
2620                          toqstr(ofname),
2621                          &filter);
2622         if (result.first != FileDialog::Chosen)
2623                 return false;
2624
2625         string fmt_name;
2626         fname.set(fromqstr(result.second));
2627         if (filter == anyformat)
2628                 fmt_name = formats.getFormatFromExtension(fname.extension());
2629         else
2630                 fmt_name = fmap[filter];
2631         LYXERR(Debug::FILES, "filter=" << fromqstr(filter)
2632                << ", fmt_name=" << fmt_name << ", fname=" << fname.absFileName());
2633
2634         if (fmt_name.empty() || fname.empty())
2635                 return false;
2636
2637         // fname is now the new Buffer location.
2638         if (FileName(fname).exists()) {
2639                 docstring const file = makeDisplayPath(fname.absFileName(), 30);
2640                 docstring text = bformat(_("The document %1$s already "
2641                                            "exists.\n\nDo you want to "
2642                                            "overwrite that document?"),
2643                                          file);
2644                 int const ret = Alert::prompt(_("Overwrite document?"),
2645                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
2646                 switch (ret) {
2647                 case 0: break;
2648                 case 1: return exportBufferAs(b, from_ascii(fmt_name));
2649                 case 2: return false;
2650                 }
2651         }
2652
2653         FuncRequest cmd(LFUN_BUFFER_EXPORT, fmt_name + " " + fname.absFileName());
2654         DispatchResult dr;
2655         dispatch(cmd, dr);
2656         return dr.dispatched();
2657 }
2658
2659
2660 bool GuiView::saveBuffer(Buffer & b)
2661 {
2662         return saveBuffer(b, FileName());
2663 }
2664
2665
2666 bool GuiView::saveBuffer(Buffer & b, FileName const & fn)
2667 {
2668         if (workArea(b) && workArea(b)->inDialogMode())
2669                 return true;
2670
2671         if (fn.empty() && b.isUnnamed())
2672                 return renameBuffer(b, docstring());
2673
2674         bool const success = (fn.empty() ? b.save() : b.saveAs(fn));
2675         if (success) {
2676                 theSession().lastFiles().add(b.fileName());
2677                 return true;
2678         }
2679
2680         // Switch to this Buffer.
2681         setBuffer(&b);
2682
2683         // FIXME: we don't tell the user *WHY* the save failed !!
2684         docstring const file = makeDisplayPath(b.absFileName(), 30);
2685         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
2686                                    "Do you want to rename the document and "
2687                                    "try again?"), file);
2688         int const ret = Alert::prompt(_("Rename and save?"),
2689                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
2690         switch (ret) {
2691         case 0:
2692                 if (!renameBuffer(b, docstring()))
2693                         return false;
2694                 break;
2695         case 1:
2696                 break;
2697         case 2:
2698                 return false;
2699         }
2700
2701         return saveBuffer(b, fn);
2702 }
2703
2704
2705 bool GuiView::hideWorkArea(GuiWorkArea * wa)
2706 {
2707         return closeWorkArea(wa, false);
2708 }
2709
2710
2711 // We only want to close the buffer if it is not visible in other workareas
2712 // of the same view, nor in other views, and if this is not a child
2713 bool GuiView::closeWorkArea(GuiWorkArea * wa)
2714 {
2715         Buffer & buf = wa->bufferView().buffer();
2716
2717         bool last_wa = d.countWorkAreasOf(buf) == 1
2718                 && !inOtherView(buf) && !buf.parent();
2719
2720         bool close_buffer = last_wa;
2721
2722         if (last_wa) {
2723                 if (lyxrc.close_buffer_with_last_view == "yes")
2724                         ; // Nothing to do
2725                 else if (lyxrc.close_buffer_with_last_view == "no")
2726                         close_buffer = false;
2727                 else {
2728                         docstring file;
2729                         if (buf.isUnnamed())
2730                                 file = from_utf8(buf.fileName().onlyFileName());
2731                         else
2732                                 file = buf.fileName().displayName(30);
2733                         docstring const text = bformat(
2734                                 _("Last view on document %1$s is being closed.\n"
2735                                   "Would you like to close or hide the document?\n"
2736                                   "\n"
2737                                   "Hidden documents can be displayed back through\n"
2738                                   "the menu: View->Hidden->...\n"
2739                                   "\n"
2740                                   "To remove this question, set your preference in:\n"
2741                                   "  Tools->Preferences->Look&Feel->UserInterface\n"
2742                                 ), file);
2743                         int ret = Alert::prompt(_("Close or hide document?"),
2744                                 text, 0, 1, _("&Close"), _("&Hide"));
2745                         close_buffer = (ret == 0);
2746                 }
2747         }
2748
2749         return closeWorkArea(wa, close_buffer);
2750 }
2751
2752
2753 bool GuiView::closeBuffer()
2754 {
2755         GuiWorkArea * wa = currentMainWorkArea();
2756         // coverity complained about this
2757         // it seems unnecessary, but perhaps is worth the check
2758         LASSERT(wa, return false);
2759
2760         setCurrentWorkArea(wa);
2761         Buffer & buf = wa->bufferView().buffer();
2762         return closeWorkArea(wa, !buf.parent());
2763 }
2764
2765
2766 void GuiView::writeSession() const {
2767         GuiWorkArea const * active_wa = currentMainWorkArea();
2768         for (int i = 0; i < d.splitter_->count(); ++i) {
2769                 TabWorkArea * twa = d.tabWorkArea(i);
2770                 for (int j = 0; j < twa->count(); ++j) {
2771                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
2772                         Buffer & buf = wa->bufferView().buffer();
2773                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
2774                 }
2775         }
2776 }
2777
2778
2779 bool GuiView::closeBufferAll()
2780 {
2781         // Close the workareas in all other views
2782         QList<int> const ids = guiApp->viewIds();
2783         for (int i = 0; i != ids.size(); ++i) {
2784                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2785                         return false;
2786         }
2787
2788         // Close our own workareas
2789         if (!closeWorkAreaAll())
2790                 return false;
2791
2792         // Now close the hidden buffers. We prevent hidden buffers from being
2793         // dirty, so we can just close them.
2794         theBufferList().closeAll();
2795         return true;
2796 }
2797
2798
2799 bool GuiView::closeWorkAreaAll()
2800 {
2801         setCurrentWorkArea(currentMainWorkArea());
2802
2803         // We might be in a situation that there is still a tabWorkArea, but
2804         // there are no tabs anymore. This can happen when we get here after a
2805         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2806         // many TabWorkArea's have no documents anymore.
2807         int empty_twa = 0;
2808
2809         // We have to call count() each time, because it can happen that
2810         // more than one splitter will disappear in one iteration (bug 5998).
2811         while (d.splitter_->count() > empty_twa) {
2812                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2813
2814                 if (twa->count() == 0)
2815                         ++empty_twa;
2816                 else {
2817                         setCurrentWorkArea(twa->currentWorkArea());
2818                         if (!closeTabWorkArea(twa))
2819                                 return false;
2820                 }
2821         }
2822         return true;
2823 }
2824
2825
2826 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2827 {
2828         if (!wa)
2829                 return false;
2830
2831         Buffer & buf = wa->bufferView().buffer();
2832
2833         if (GuiViewPrivate::busyBuffers.contains(&buf)) {
2834                 Alert::warning(_("Close document"),
2835                         _("Document could not be closed because it is being processed by LyX."));
2836                 return false;
2837         }
2838
2839         if (close_buffer)
2840                 return closeBuffer(buf);
2841         else {
2842                 if (!inMultiTabs(wa))
2843                         if (!saveBufferIfNeeded(buf, true))
2844                                 return false;
2845                 removeWorkArea(wa);
2846                 return true;
2847         }
2848 }
2849
2850
2851 bool GuiView::closeBuffer(Buffer & buf)
2852 {
2853         // If we are in a close_event all children will be closed in some time,
2854         // so no need to do it here. This will ensure that the children end up
2855         // in the session file in the correct order. If we close the master
2856         // buffer, we can close or release the child buffers here too.
2857         bool success = true;
2858         if (!closing_) {
2859                 ListOfBuffers clist = buf.getChildren();
2860                 ListOfBuffers::const_iterator it = clist.begin();
2861                 ListOfBuffers::const_iterator const bend = clist.end();
2862                 for (; it != bend; ++it) {
2863                         Buffer * child_buf = *it;
2864                         if (theBufferList().isOthersChild(&buf, child_buf)) {
2865                                 child_buf->setParent(0);
2866                                 continue;
2867                         }
2868
2869                         // FIXME: should we look in other tabworkareas?
2870                         // ANSWER: I don't think so. I've tested, and if the child is
2871                         // open in some other window, it closes without a problem.
2872                         GuiWorkArea * child_wa = workArea(*child_buf);
2873                         if (child_wa) {
2874                                 success = closeWorkArea(child_wa, true);
2875                                 if (!success)
2876                                         break;
2877                         } else {
2878                                 // In this case the child buffer is open but hidden.
2879                                 // It therefore should not (MUST NOT) be dirty!
2880                                 LATTEST(child_buf->isClean());
2881                                 theBufferList().release(child_buf);
2882                         }
2883                 }
2884         }
2885         if (success) {
2886                 // goto bookmark to update bookmark pit.
2887                 // FIXME: we should update only the bookmarks related to this buffer!
2888                 LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2889                 for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2890                         guiApp->gotoBookmark(i+1, false, false);
2891
2892                 if (saveBufferIfNeeded(buf, false)) {
2893                         buf.removeAutosaveFile();
2894                         theBufferList().release(&buf);
2895                         return true;
2896                 }
2897         }
2898         // open all children again to avoid a crash because of dangling
2899         // pointers (bug 6603)
2900         buf.updateBuffer();
2901         return false;
2902 }
2903
2904
2905 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2906 {
2907         while (twa == d.currentTabWorkArea()) {
2908                 twa->setCurrentIndex(twa->count() - 1);
2909
2910                 GuiWorkArea * wa = twa->currentWorkArea();
2911                 Buffer & b = wa->bufferView().buffer();
2912
2913                 // We only want to close the buffer if the same buffer is not visible
2914                 // in another view, and if this is not a child and if we are closing
2915                 // a view (not a tabgroup).
2916                 bool const close_buffer =
2917                         !inOtherView(b) && !b.parent() && closing_;
2918
2919                 if (!closeWorkArea(wa, close_buffer))
2920                         return false;
2921         }
2922         return true;
2923 }
2924
2925
2926 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2927 {
2928         if (buf.isClean() || buf.paragraphs().empty())
2929                 return true;
2930
2931         // Switch to this Buffer.
2932         setBuffer(&buf);
2933
2934         docstring file;
2935         // FIXME: Unicode?
2936         if (buf.isUnnamed())
2937                 file = from_utf8(buf.fileName().onlyFileName());
2938         else
2939                 file = buf.fileName().displayName(30);
2940
2941         // Bring this window to top before asking questions.
2942         raise();
2943         activateWindow();
2944
2945         int ret;
2946         if (hiding && buf.isUnnamed()) {
2947                 docstring const text = bformat(_("The document %1$s has not been "
2948                                                  "saved yet.\n\nDo you want to save "
2949                                                  "the document?"), file);
2950                 ret = Alert::prompt(_("Save new document?"),
2951                         text, 0, 1, _("&Save"), _("&Cancel"));
2952                 if (ret == 1)
2953                         ++ret;
2954         } else {
2955                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2956                         "\n\nDo you want to save the document or discard the changes?"), file);
2957                 ret = Alert::prompt(_("Save changed document?"),
2958                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2959         }
2960
2961         switch (ret) {
2962         case 0:
2963                 if (!saveBuffer(buf))
2964                         return false;
2965                 break;
2966         case 1:
2967                 // If we crash after this we could have no autosave file
2968                 // but I guess this is really improbable (Jug).
2969                 // Sometimes improbable things happen:
2970                 // - see bug http://www.lyx.org/trac/ticket/6587 (ps)
2971                 // buf.removeAutosaveFile();
2972                 if (hiding)
2973                         // revert all changes
2974                         reloadBuffer(buf);
2975                 buf.markClean();
2976                 break;
2977         case 2:
2978                 return false;
2979         }
2980         return true;
2981 }
2982
2983
2984 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2985 {
2986         Buffer & buf = wa->bufferView().buffer();
2987
2988         for (int i = 0; i != d.splitter_->count(); ++i) {
2989                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2990                 if (wa_ && wa_ != wa)
2991                         return true;
2992         }
2993         return inOtherView(buf);
2994 }
2995
2996
2997 bool GuiView::inOtherView(Buffer & buf)
2998 {
2999         QList<int> const ids = guiApp->viewIds();
3000
3001         for (int i = 0; i != ids.size(); ++i) {
3002                 if (id_ == ids[i])
3003                         continue;
3004
3005                 if (guiApp->view(ids[i]).workArea(buf))
3006                         return true;
3007         }
3008         return false;
3009 }
3010
3011
3012 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np, bool const move)
3013 {
3014         if (!documentBufferView())
3015                 return;
3016
3017         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3018                 Buffer * const curbuf = &documentBufferView()->buffer();
3019                 int nwa = twa->count();
3020                 for (int i = 0; i < nwa; ++i) {
3021                         if (&workArea(i)->bufferView().buffer() == curbuf) {
3022                                 int next_index;
3023                                 if (np == NEXTBUFFER)
3024                                         next_index = (i == nwa - 1 ? 0 : i + 1);
3025                                 else
3026                                         next_index = (i == 0 ? nwa - 1 : i - 1);
3027                                 if (move)
3028                                         twa->moveTab(i, next_index);
3029                                 else
3030                                         setBuffer(&workArea(next_index)->bufferView().buffer());
3031                                 break;
3032                         }
3033                 }
3034         }
3035 }
3036
3037
3038 /// make sure the document is saved
3039 static bool ensureBufferClean(Buffer * buffer)
3040 {
3041         LASSERT(buffer, return false);
3042         if (buffer->isClean() && !buffer->isUnnamed())
3043                 return true;
3044
3045         docstring const file = buffer->fileName().displayName(30);
3046         docstring title;
3047         docstring text;
3048         if (!buffer->isUnnamed()) {
3049                 text = bformat(_("The document %1$s has unsaved "
3050                                                  "changes.\n\nDo you want to save "
3051                                                  "the document?"), file);
3052                 title = _("Save changed document?");
3053
3054         } else {
3055                 text = bformat(_("The document %1$s has not been "
3056                                                  "saved yet.\n\nDo you want to save "
3057                                                  "the document?"), file);
3058                 title = _("Save new document?");
3059         }
3060         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
3061
3062         if (ret == 0)
3063                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
3064
3065         return buffer->isClean() && !buffer->isUnnamed();
3066 }
3067
3068
3069 bool GuiView::reloadBuffer(Buffer & buf)
3070 {
3071         Buffer::ReadStatus status = buf.reload();
3072         return status == Buffer::ReadSuccess;
3073 }
3074
3075
3076 void GuiView::checkExternallyModifiedBuffers()
3077 {
3078         BufferList::iterator bit = theBufferList().begin();
3079         BufferList::iterator const bend = theBufferList().end();
3080         for (; bit != bend; ++bit) {
3081                 Buffer * buf = *bit;
3082                 if (buf->fileName().exists()
3083                         && buf->isExternallyModified(Buffer::checksum_method)) {
3084                         docstring text = bformat(_("Document \n%1$s\n has been externally modified."
3085                                         " Reload now? Any local changes will be lost."),
3086                                         from_utf8(buf->absFileName()));
3087                         int const ret = Alert::prompt(_("Reload externally changed document?"),
3088                                                 text, 0, 1, _("&Reload"), _("&Cancel"));
3089                         if (!ret)
3090                                 reloadBuffer(*buf);
3091                 }
3092         }
3093 }
3094
3095
3096 void GuiView::dispatchVC(FuncRequest const & cmd, DispatchResult & dr)
3097 {
3098         Buffer * buffer = documentBufferView()
3099                 ? &(documentBufferView()->buffer()) : 0;
3100
3101         switch (cmd.action()) {
3102         case LFUN_VC_REGISTER:
3103                 if (!buffer || !ensureBufferClean(buffer))
3104                         break;
3105                 if (!buffer->lyxvc().inUse()) {
3106                         if (buffer->lyxvc().registrer()) {
3107                                 reloadBuffer(*buffer);
3108                                 dr.clearMessageUpdate();
3109                         }
3110                 }
3111                 break;
3112
3113         case LFUN_VC_RENAME:
3114         case LFUN_VC_COPY: {
3115                 if (!buffer || !ensureBufferClean(buffer))
3116                         break;
3117                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
3118                         if (buffer->lyxvc().isCheckInWithConfirmation()) {
3119                                 // Some changes are not yet committed.
3120                                 // We test here and not in getStatus(), since
3121                                 // this test is expensive.
3122                                 string log;
3123                                 LyXVC::CommandResult ret =
3124                                         buffer->lyxvc().checkIn(log);
3125                                 dr.setMessage(log);
3126                                 if (ret == LyXVC::ErrorCommand ||
3127                                     ret == LyXVC::VCSuccess)
3128                                         reloadBuffer(*buffer);
3129                                 if (buffer->lyxvc().isCheckInWithConfirmation()) {
3130                                         frontend::Alert::error(
3131                                                 _("Revision control error."),
3132                                                 _("Document could not be checked in."));
3133                                         break;
3134                                 }
3135                         }
3136                         RenameKind const kind = (cmd.action() == LFUN_VC_RENAME) ?
3137                                 LV_VC_RENAME : LV_VC_COPY;
3138                         renameBuffer(*buffer, cmd.argument(), kind);
3139                 }
3140                 break;
3141         }
3142
3143         case LFUN_VC_CHECK_IN:
3144                 if (!buffer || !ensureBufferClean(buffer))
3145                         break;
3146                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
3147                         string log;
3148                         LyXVC::CommandResult ret = buffer->lyxvc().checkIn(log);
3149                         dr.setMessage(log);
3150                         // Only skip reloading if the checkin was cancelled or
3151                         // an error occurred before the real checkin VCS command
3152                         // was executed, since the VCS might have changed the
3153                         // file even if it could not checkin successfully.
3154                         if (ret == LyXVC::ErrorCommand || ret == LyXVC::VCSuccess)
3155                                 reloadBuffer(*buffer);
3156                 }
3157                 break;
3158
3159         case LFUN_VC_CHECK_OUT:
3160                 if (!buffer || !ensureBufferClean(buffer))
3161                         break;
3162                 if (buffer->lyxvc().inUse()) {
3163                         dr.setMessage(buffer->lyxvc().checkOut());
3164                         reloadBuffer(*buffer);
3165                 }
3166                 break;
3167
3168         case LFUN_VC_LOCKING_TOGGLE:
3169                 LASSERT(buffer, return);
3170                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
3171                         break;
3172                 if (buffer->lyxvc().inUse()) {
3173                         string res = buffer->lyxvc().lockingToggle();
3174                         if (res.empty()) {
3175                                 frontend::Alert::error(_("Revision control error."),
3176                                 _("Error when setting the locking property."));
3177                         } else {
3178                                 dr.setMessage(res);
3179                                 reloadBuffer(*buffer);
3180                         }
3181                 }
3182                 break;
3183
3184         case LFUN_VC_REVERT:
3185                 LASSERT(buffer, return);
3186                 if (buffer->lyxvc().revert()) {
3187                         reloadBuffer(*buffer);
3188                         dr.clearMessageUpdate();
3189                 }
3190                 break;
3191
3192         case LFUN_VC_UNDO_LAST:
3193                 LASSERT(buffer, return);
3194                 buffer->lyxvc().undoLast();
3195                 reloadBuffer(*buffer);
3196                 dr.clearMessageUpdate();
3197                 break;
3198
3199         case LFUN_VC_REPO_UPDATE:
3200                 LASSERT(buffer, return);
3201                 if (ensureBufferClean(buffer)) {
3202                         dr.setMessage(buffer->lyxvc().repoUpdate());
3203                         checkExternallyModifiedBuffers();
3204                 }
3205                 break;
3206
3207         case LFUN_VC_COMMAND: {
3208                 string flag = cmd.getArg(0);
3209                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
3210                         break;
3211                 docstring message;
3212                 if (contains(flag, 'M')) {
3213                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
3214                                 break;
3215                 }
3216                 string path = cmd.getArg(1);
3217                 if (contains(path, "$$p") && buffer)
3218                         path = subst(path, "$$p", buffer->filePath());
3219                 LYXERR(Debug::LYXVC, "Directory: " << path);
3220                 FileName pp(path);
3221                 if (!pp.isReadableDirectory()) {
3222                         lyxerr << _("Directory is not accessible.") << endl;
3223                         break;
3224                 }
3225                 support::PathChanger p(pp);
3226
3227                 string command = cmd.getArg(2);
3228                 if (command.empty())
3229                         break;
3230                 if (buffer) {
3231                         command = subst(command, "$$i", buffer->absFileName());
3232                         command = subst(command, "$$p", buffer->filePath());
3233                 }
3234                 command = subst(command, "$$m", to_utf8(message));
3235                 LYXERR(Debug::LYXVC, "Command: " << command);
3236                 Systemcall one;
3237                 one.startscript(Systemcall::Wait, command);
3238
3239                 if (!buffer)
3240                         break;
3241                 if (contains(flag, 'I'))
3242                         buffer->markDirty();
3243                 if (contains(flag, 'R'))
3244                         reloadBuffer(*buffer);
3245
3246                 break;
3247                 }
3248
3249         case LFUN_VC_COMPARE: {
3250                 if (cmd.argument().empty()) {
3251                         lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "comparehistory"));
3252                         break;
3253                 }
3254
3255                 string rev1 = cmd.getArg(0);
3256                 string f1, f2;
3257
3258                 // f1
3259                 // it seems safe to assume we have a buffer
3260                 // coverity[FORWARD_NULL]
3261                 if (!buffer->lyxvc().prepareFileRevision(rev1, f1))
3262                         break;
3263
3264                 if (isStrInt(rev1) && convert<int>(rev1) <= 0) {
3265                         f2 = buffer->absFileName();
3266                 } else {
3267                         string rev2 = cmd.getArg(1);
3268                         if (rev2.empty())
3269                                 break;
3270                         // f2
3271                         if (!buffer->lyxvc().prepareFileRevision(rev2, f2))
3272                                 break;
3273                 }
3274
3275                 LYXERR(Debug::LYXVC, "Launching comparison for fetched revisions:\n" <<
3276                                         f1 << "\n"  << f2 << "\n" );
3277                 string par = "compare run " + quoteName(f1) + " " + quoteName(f2);
3278                 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, par));
3279                 break;
3280         }
3281
3282         default:
3283                 break;
3284         }
3285 }
3286
3287
3288 void GuiView::openChildDocument(string const & fname)
3289 {
3290         LASSERT(documentBufferView(), return);
3291         Buffer & buffer = documentBufferView()->buffer();
3292         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
3293         documentBufferView()->saveBookmark(false);
3294         Buffer * child = 0;
3295         if (theBufferList().exists(filename)) {
3296                 child = theBufferList().getBuffer(filename);
3297                 setBuffer(child);
3298         } else {
3299                 message(bformat(_("Opening child document %1$s..."),
3300                         makeDisplayPath(filename.absFileName())));
3301                 child = loadDocument(filename, false);
3302         }
3303         // Set the parent name of the child document.
3304         // This makes insertion of citations and references in the child work,
3305         // when the target is in the parent or another child document.
3306         if (child)
3307                 child->setParent(&buffer);
3308 }
3309
3310
3311 bool GuiView::goToFileRow(string const & argument)
3312 {
3313         string file_name;
3314         int row;
3315         size_t i = argument.find_last_of(' ');
3316         if (i != string::npos) {
3317                 file_name = os::internal_path(trim(argument.substr(0, i)));
3318                 istringstream is(argument.substr(i + 1));
3319                 is >> row;
3320                 if (is.fail())
3321                         i = string::npos;
3322         }
3323         if (i == string::npos) {
3324                 LYXERR0("Wrong argument: " << argument);
3325                 return false;
3326         }
3327         Buffer * buf = 0;
3328         string const abstmp = package().temp_dir().absFileName();
3329         string const realtmp = package().temp_dir().realPath();
3330         // We have to use os::path_prefix_is() here, instead of
3331         // simply prefixIs(), because the file name comes from
3332         // an external application and may need case adjustment.
3333         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
3334                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
3335                 // Needed by inverse dvi search. If it is a file
3336                 // in tmpdir, call the apropriated function.
3337                 // If tmpdir is a symlink, we may have the real
3338                 // path passed back, so we correct for that.
3339                 if (!prefixIs(file_name, abstmp))
3340                         file_name = subst(file_name, realtmp, abstmp);
3341                 buf = theBufferList().getBufferFromTmp(file_name);
3342         } else {
3343                 // Must replace extension of the file to be .lyx
3344                 // and get full path
3345                 FileName const s = fileSearch(string(),
3346                                                   support::changeExtension(file_name, ".lyx"), "lyx");
3347                 // Either change buffer or load the file
3348                 if (theBufferList().exists(s))
3349                         buf = theBufferList().getBuffer(s);
3350                 else if (s.exists()) {
3351                         buf = loadDocument(s);
3352                         if (!buf)
3353                                 return false;
3354                 } else {
3355                         message(bformat(
3356                                         _("File does not exist: %1$s"),
3357                                         makeDisplayPath(file_name)));
3358                         return false;
3359                 }
3360         }
3361         if (!buf) {
3362                 message(bformat(
3363                         _("No buffer for file: %1$s."),
3364                         makeDisplayPath(file_name))
3365                 );
3366                 return false;
3367         }
3368         setBuffer(buf);
3369         documentBufferView()->setCursorFromRow(row);
3370         return true;
3371 }
3372
3373
3374 template<class T>
3375 Buffer::ExportStatus GuiView::GuiViewPrivate::runAndDestroy(const T& func, Buffer const * orig, Buffer * clone, string const & format)
3376 {
3377         Buffer::ExportStatus const status = func(format);
3378
3379         // the cloning operation will have produced a clone of the entire set of
3380         // documents, starting from the master. so we must delete those.
3381         Buffer * mbuf = const_cast<Buffer *>(clone->masterBuffer());
3382         delete mbuf;
3383         busyBuffers.remove(orig);
3384         return status;
3385 }
3386
3387
3388 Buffer::ExportStatus GuiView::GuiViewPrivate::compileAndDestroy(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, true), orig, clone, format);
3392 }
3393
3394
3395 Buffer::ExportStatus GuiView::GuiViewPrivate::exportAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3396 {
3397         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &, bool) const = &Buffer::doExport;
3398         return runAndDestroy(lyx::bind(mem_func, clone, _1, false), orig, clone, format);
3399 }
3400
3401
3402 Buffer::ExportStatus GuiView::GuiViewPrivate::previewAndDestroy(Buffer const * orig, Buffer * clone, string const & format)
3403 {
3404         Buffer::ExportStatus (Buffer::* mem_func)(std::string const &) const = &Buffer::preview;
3405         return runAndDestroy(lyx::bind(mem_func, clone, _1), orig, clone, format);
3406 }
3407
3408
3409 bool GuiView::GuiViewPrivate::asyncBufferProcessing(
3410                            string const & argument,
3411                            Buffer const * used_buffer,
3412                            docstring const & msg,
3413                            Buffer::ExportStatus (*asyncFunc)(Buffer const *, Buffer *, string const &),
3414                            Buffer::ExportStatus (Buffer::*syncFunc)(string const &, bool) const,
3415                            Buffer::ExportStatus (Buffer::*previewFunc)(string const &) const)
3416 {
3417         if (!used_buffer)
3418                 return false;
3419
3420         string format = argument;
3421         if (format.empty())
3422                 format = used_buffer->params().getDefaultOutputFormat();
3423         processing_format = format;
3424         if (!msg.empty()) {
3425                 progress_->clearMessages();
3426                 gv_->message(msg);
3427         }
3428 #if EXPORT_in_THREAD
3429         GuiViewPrivate::busyBuffers.insert(used_buffer);
3430         Buffer * cloned_buffer = used_buffer->cloneFromMaster();
3431         if (!cloned_buffer) {
3432                 Alert::error(_("Export Error"),
3433                              _("Error cloning the Buffer."));
3434                 return false;
3435         }
3436         QFuture<Buffer::ExportStatus> f = QtConcurrent::run(
3437                                 asyncFunc,
3438                                 used_buffer,
3439                                 cloned_buffer,
3440                                 format);
3441         setPreviewFuture(f);
3442         last_export_format = used_buffer->params().bufferFormat();
3443         (void) syncFunc;
3444         (void) previewFunc;
3445         // We are asynchronous, so we don't know here anything about the success
3446         return true;
3447 #else
3448         Buffer::ExportStatus status;
3449         if (syncFunc) {
3450                 status = (used_buffer->*syncFunc)(format, true);
3451         } else if (previewFunc) {
3452                 status = (used_buffer->*previewFunc)(format);
3453         } else
3454                 return false;
3455         handleExportStatus(gv_, status, format);
3456         (void) asyncFunc;
3457         return (status == Buffer::ExportSuccess
3458                         || status == Buffer::PreviewSuccess);
3459 #endif
3460 }
3461
3462 void GuiView::dispatchToBufferView(FuncRequest const & cmd, DispatchResult & dr)
3463 {
3464         BufferView * bv = currentBufferView();
3465         LASSERT(bv, return);
3466
3467         // Let the current BufferView dispatch its own actions.
3468         bv->dispatch(cmd, dr);
3469         if (dr.dispatched())
3470                 return;
3471
3472         // Try with the document BufferView dispatch if any.
3473         BufferView * doc_bv = documentBufferView();
3474         if (doc_bv && doc_bv != bv) {
3475                 doc_bv->dispatch(cmd, dr);
3476                 if (dr.dispatched())
3477                         return;
3478         }
3479
3480         // Then let the current Cursor dispatch its own actions.
3481         bv->cursor().dispatch(cmd);
3482
3483         // update completion. We do it here and not in
3484         // processKeySym to avoid another redraw just for a
3485         // changed inline completion
3486         if (cmd.origin() == FuncRequest::KEYBOARD) {
3487                 if (cmd.action() == LFUN_SELF_INSERT
3488                         || (cmd.action() == LFUN_ERT_INSERT && bv->cursor().inMathed()))
3489                         updateCompletion(bv->cursor(), true, true);
3490                 else if (cmd.action() == LFUN_CHAR_DELETE_BACKWARD)
3491                         updateCompletion(bv->cursor(), false, true);
3492                 else
3493                         updateCompletion(bv->cursor(), false, false);
3494         }
3495
3496         dr = bv->cursor().result();
3497 }
3498
3499
3500 void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
3501 {
3502         BufferView * bv = currentBufferView();
3503         // By default we won't need any update.
3504         dr.screenUpdate(Update::None);
3505         // assume cmd will be dispatched
3506         dr.dispatched(true);
3507
3508         Buffer * doc_buffer = documentBufferView()
3509                 ? &(documentBufferView()->buffer()) : 0;
3510
3511         if (cmd.origin() == FuncRequest::TOC) {
3512                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
3513                 // FIXME: do we need to pass a DispatchResult object here?
3514                 toc->doDispatch(bv->cursor(), cmd);
3515                 return;
3516         }
3517
3518         string const argument = to_utf8(cmd.argument());
3519
3520         switch(cmd.action()) {
3521                 case LFUN_BUFFER_CHILD_OPEN:
3522                         openChildDocument(to_utf8(cmd.argument()));
3523                         break;
3524
3525                 case LFUN_BUFFER_IMPORT:
3526                         importDocument(to_utf8(cmd.argument()));
3527                         break;
3528
3529                 case LFUN_BUFFER_EXPORT: {
3530                         if (!doc_buffer)
3531                                 break;
3532                         // GCC only sees strfwd.h when building merged
3533                         if (::lyx::operator==(cmd.argument(), "custom")) {
3534                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
3535                                 break;
3536                         }
3537
3538                         string const dest = cmd.getArg(1);
3539                         FileName target_dir;
3540                         if (!dest.empty() && FileName::isAbsolute(dest))
3541                                 target_dir = FileName(support::onlyPath(dest));
3542                         else
3543                                 target_dir = doc_buffer->fileName().onlyPath();
3544
3545                         if ((dest.empty() && doc_buffer->isUnnamed())
3546                             || !target_dir.isDirWritable()) {
3547                                 exportBufferAs(*doc_buffer, cmd.argument());
3548                                 break;
3549                         }
3550                         /* TODO/Review: Is it a problem to also export the children?
3551                                         See the update_unincluded flag */
3552                         d.asyncBufferProcessing(argument,
3553                                                 doc_buffer,
3554                                                 _("Exporting ..."),
3555                                                 &GuiViewPrivate::exportAndDestroy,
3556                                                 &Buffer::doExport,
3557                                                 0);
3558                         // TODO Inform user about success
3559                         break;
3560                 }
3561
3562                 case LFUN_BUFFER_EXPORT_AS: {
3563                         LASSERT(doc_buffer, break);
3564                         docstring f = cmd.argument();
3565                         if (f.empty())
3566                                 f = from_ascii(doc_buffer->params().getDefaultOutputFormat());
3567                         exportBufferAs(*doc_buffer, f);
3568                         break;
3569                 }
3570
3571                 case LFUN_BUFFER_UPDATE: {
3572                         d.asyncBufferProcessing(argument,
3573                                                 doc_buffer,
3574                                                 _("Exporting ..."),
3575                                                 &GuiViewPrivate::compileAndDestroy,
3576                                                 &Buffer::doExport,
3577                                                 0);
3578                         break;
3579                 }
3580                 case LFUN_BUFFER_VIEW: {
3581                         d.asyncBufferProcessing(argument,
3582                                                 doc_buffer,
3583                                                 _("Previewing ..."),
3584                                                 &GuiViewPrivate::previewAndDestroy,
3585                                                 0,
3586                                                 &Buffer::preview);
3587                         break;
3588                 }
3589                 case LFUN_MASTER_BUFFER_UPDATE: {
3590                         d.asyncBufferProcessing(argument,
3591                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3592                                                 docstring(),
3593                                                 &GuiViewPrivate::compileAndDestroy,
3594                                                 &Buffer::doExport,
3595                                                 0);
3596                         break;
3597                 }
3598                 case LFUN_MASTER_BUFFER_VIEW: {
3599                         d.asyncBufferProcessing(argument,
3600                                                 (doc_buffer ? doc_buffer->masterBuffer() : 0),
3601                                                 docstring(),
3602                                                 &GuiViewPrivate::previewAndDestroy,
3603                                                 0, &Buffer::preview);
3604                         break;
3605                 }
3606                 case LFUN_BUFFER_SWITCH: {
3607                         string const file_name = to_utf8(cmd.argument());
3608                         if (!FileName::isAbsolute(file_name)) {
3609                                 dr.setError(true);
3610                                 dr.setMessage(_("Absolute filename expected."));
3611                                 break;
3612                         }
3613
3614                         Buffer * buffer = theBufferList().getBuffer(FileName(file_name));
3615                         if (!buffer) {
3616                                 dr.setError(true);
3617                                 dr.setMessage(_("Document not loaded"));
3618                                 break;
3619                         }
3620
3621                         // Do we open or switch to the buffer in this view ?
3622                         if (workArea(*buffer)
3623                                   || lyxrc.open_buffers_in_tabs || !documentBufferView()) {
3624                                 setBuffer(buffer);
3625                                 break;
3626                         }
3627
3628                         // Look for the buffer in other views
3629                         QList<int> const ids = guiApp->viewIds();
3630                         int i = 0;
3631                         for (; i != ids.size(); ++i) {
3632                                 GuiView & gv = guiApp->view(ids[i]);
3633                                 if (gv.workArea(*buffer)) {
3634                                         gv.raise();
3635                                         gv.activateWindow();
3636                                         gv.setFocus();
3637                                         gv.setBuffer(buffer);
3638                                         break;
3639                                 }
3640                         }
3641
3642                         // If necessary, open a new window as a last resort
3643                         if (i == ids.size()) {
3644                                 lyx::dispatch(FuncRequest(LFUN_WINDOW_NEW));
3645                                 lyx::dispatch(cmd);
3646                         }
3647                         break;
3648                 }
3649
3650                 case LFUN_BUFFER_NEXT:
3651                         gotoNextOrPreviousBuffer(NEXTBUFFER, false);
3652                         break;
3653
3654                 case LFUN_BUFFER_MOVE_NEXT:
3655                         gotoNextOrPreviousBuffer(NEXTBUFFER, true);
3656                         break;
3657
3658                 case LFUN_BUFFER_PREVIOUS:
3659                         gotoNextOrPreviousBuffer(PREVBUFFER, false);
3660                         break;
3661
3662                 case LFUN_BUFFER_MOVE_PREVIOUS:
3663                         gotoNextOrPreviousBuffer(PREVBUFFER, true);
3664                         break;
3665
3666                 case LFUN_COMMAND_EXECUTE: {
3667                         command_execute_ = true;
3668                         minibuffer_focus_ = true;
3669                         break;
3670                 }
3671                 case LFUN_DROP_LAYOUTS_CHOICE:
3672                         d.layout_->showPopup();
3673                         break;
3674
3675                 case LFUN_MENU_OPEN:
3676                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
3677                                 menu->exec(QCursor::pos());
3678                         break;
3679
3680                 case LFUN_FILE_INSERT:
3681                         insertLyXFile(cmd.argument());
3682                         break;
3683
3684                 case LFUN_FILE_INSERT_PLAINTEXT:
3685                 case LFUN_FILE_INSERT_PLAINTEXT_PARA: {
3686                         string const fname = to_utf8(cmd.argument());
3687                         if (!fname.empty() && !FileName::isAbsolute(fname)) {
3688                                 dr.setMessage(_("Absolute filename expected."));
3689                                 break;
3690                         }
3691
3692                         FileName filename(fname);
3693                         if (fname.empty()) {
3694                                 FileDialog dlg(qt_("Select file to insert"));
3695
3696                                 FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
3697                                         QStringList(qt_("All Files (*)")));
3698
3699                                 if (result.first == FileDialog::Later || result.second.isEmpty()) {
3700                                         dr.setMessage(_("Canceled."));
3701                                         break;
3702                                 }
3703
3704                                 filename.set(fromqstr(result.second));
3705                         }
3706
3707                         if (bv) {
3708                                 FuncRequest const new_cmd(cmd, filename.absoluteFilePath());
3709                                 bv->dispatch(new_cmd, dr);
3710                         }
3711                         break;
3712                 }
3713
3714                 case LFUN_BUFFER_RELOAD: {
3715                         LASSERT(doc_buffer, break);
3716
3717                         int ret = 0;
3718                         if (!doc_buffer->isClean()) {
3719                                 docstring const file =
3720                                         makeDisplayPath(doc_buffer->absFileName(), 20);
3721                                 docstring text = bformat(_("Any changes will be lost. "
3722                                         "Are you sure you want to revert to the saved version "
3723                                         "of the document %1$s?"), file);
3724                                 ret = Alert::prompt(_("Revert to saved document?"),
3725                                         text, 1, 1, _("&Revert"), _("&Cancel"));
3726                         }
3727
3728                         if (ret == 0) {
3729                                 doc_buffer->markClean();
3730                                 reloadBuffer(*doc_buffer);
3731                                 dr.forceBufferUpdate();
3732                         }
3733                         break;
3734                 }
3735
3736                 case LFUN_BUFFER_WRITE:
3737                         LASSERT(doc_buffer, break);
3738                         saveBuffer(*doc_buffer);
3739                         break;
3740
3741                 case LFUN_BUFFER_WRITE_AS:
3742                         LASSERT(doc_buffer, break);
3743                         renameBuffer(*doc_buffer, cmd.argument());
3744                         break;
3745
3746                 case LFUN_BUFFER_WRITE_ALL: {
3747                         Buffer * first = theBufferList().first();
3748                         if (!first)
3749                                 break;
3750                         message(_("Saving all documents..."));
3751                         // We cannot use a for loop as the buffer list cycles.
3752                         Buffer * b = first;
3753                         do {
3754                                 if (!b->isClean()) {
3755                                         saveBuffer(*b);
3756                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
3757                                 }
3758                                 b = theBufferList().next(b);
3759                         } while (b != first);
3760                         dr.setMessage(_("All documents saved."));
3761                         break;
3762                 }
3763
3764                 case LFUN_BUFFER_CLOSE:
3765                         closeBuffer();
3766                         break;
3767
3768                 case LFUN_BUFFER_CLOSE_ALL:
3769                         closeBufferAll();
3770                         break;
3771
3772                 case LFUN_TOOLBAR_TOGGLE: {
3773                         string const name = cmd.getArg(0);
3774                         if (GuiToolbar * t = toolbar(name))
3775                                 t->toggle();
3776                         break;
3777                 }
3778
3779                 case LFUN_DIALOG_UPDATE: {
3780                         string const name = to_utf8(cmd.argument());
3781                         if (name == "prefs" || name == "document")
3782                                 updateDialog(name, string());
3783                         else if (name == "paragraph")
3784                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
3785                         else if (currentBufferView()) {
3786                                 Inset * inset = currentBufferView()->editedInset(name);
3787                                 // Can only update a dialog connected to an existing inset
3788                                 if (inset) {
3789                                         // FIXME: get rid of this indirection; GuiView ask the inset
3790                                         // if he is kind enough to update itself...
3791                                         FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
3792                                         //FIXME: pass DispatchResult here?
3793                                         inset->dispatch(currentBufferView()->cursor(), fr);
3794                                 }
3795                         }
3796                         break;
3797                 }
3798
3799                 case LFUN_DIALOG_TOGGLE: {
3800                         FuncCode const func_code = isDialogVisible(cmd.getArg(0))
3801                                 ? LFUN_DIALOG_HIDE : LFUN_DIALOG_SHOW;
3802                         dispatch(FuncRequest(func_code, cmd.argument()), dr);
3803                         break;
3804                 }
3805
3806                 case LFUN_DIALOG_DISCONNECT_INSET:
3807                         disconnectDialog(to_utf8(cmd.argument()));
3808                         break;
3809
3810                 case LFUN_DIALOG_HIDE: {
3811                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
3812                         break;
3813                 }
3814
3815                 case LFUN_DIALOG_SHOW: {
3816                         string const name = cmd.getArg(0);
3817                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
3818
3819                         if (name == "character") {
3820                                 data = freefont2string();
3821                                 if (!data.empty())
3822                                         showDialog("character", data);
3823                         } else if (name == "latexlog") {
3824                                 Buffer::LogType type;
3825                                 string const logfile = doc_buffer->logName(&type);
3826                                 switch (type) {
3827                                 case Buffer::latexlog:
3828                                         data = "latex ";
3829                                         break;
3830                                 case Buffer::buildlog:
3831                                         data = "literate ";
3832                                         break;
3833                                 }
3834                                 data += Lexer::quoteString(logfile);
3835                                 showDialog("log", data);
3836                         } else if (name == "vclog") {
3837                                 string const data = "vc " +
3838                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
3839                                 showDialog("log", data);
3840                         } else if (name == "symbols") {
3841                                 data = bv->cursor().getEncoding()->name();
3842                                 if (!data.empty())
3843                                         showDialog("symbols", data);
3844                         // bug 5274
3845                         } else if (name == "prefs" && isFullScreen()) {
3846                                 lfunUiToggle("fullscreen");
3847                                 showDialog("prefs", data);
3848                         } else
3849                                 showDialog(name, data);
3850                         break;
3851                 }
3852
3853                 case LFUN_MESSAGE:
3854                         dr.setMessage(cmd.argument());
3855                         break;
3856
3857                 case LFUN_UI_TOGGLE: {
3858                         string arg = cmd.getArg(0);
3859                         if (!lfunUiToggle(arg)) {
3860                                 docstring const msg = "ui-toggle " + _("%1$s unknown command!");
3861                                 dr.setMessage(bformat(msg, from_utf8(arg)));
3862                         }
3863                         // Make sure the keyboard focus stays in the work area.
3864                         setFocus();
3865                         break;
3866                 }
3867
3868                 case LFUN_VIEW_SPLIT: {
3869                         LASSERT(doc_buffer, break);
3870                         string const orientation = cmd.getArg(0);
3871                         d.splitter_->setOrientation(orientation == "vertical"
3872                                 ? Qt::Vertical : Qt::Horizontal);
3873                         TabWorkArea * twa = addTabWorkArea();
3874                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
3875                         setCurrentWorkArea(wa);
3876                         break;
3877                 }
3878                 case LFUN_TAB_GROUP_CLOSE:
3879                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3880                                 closeTabWorkArea(twa);
3881                                 d.current_work_area_ = 0;
3882                                 twa = d.currentTabWorkArea();
3883                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3884                                 if (twa) {
3885                                         // Make sure the work area is up to date.
3886                                         setCurrentWorkArea(twa->currentWorkArea());
3887                                 } else {
3888                                         setCurrentWorkArea(0);
3889                                 }
3890                         }
3891                         break;
3892
3893                 case LFUN_VIEW_CLOSE:
3894                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
3895                                 closeWorkArea(twa->currentWorkArea());
3896                                 d.current_work_area_ = 0;
3897                                 twa = d.currentTabWorkArea();
3898                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
3899                                 if (twa) {
3900                                         // Make sure the work area is up to date.
3901                                         setCurrentWorkArea(twa->currentWorkArea());
3902                                 } else {
3903                                         setCurrentWorkArea(0);
3904                                 }
3905                         }
3906                         break;
3907
3908                 case LFUN_COMPLETION_INLINE:
3909                         if (d.current_work_area_)
3910                                 d.current_work_area_->completer().showInline();
3911                         break;
3912
3913                 case LFUN_COMPLETION_POPUP:
3914                         if (d.current_work_area_)
3915                                 d.current_work_area_->completer().showPopup();
3916                         break;
3917
3918
3919                 case LFUN_COMPLETE:
3920                         if (d.current_work_area_)
3921                                 d.current_work_area_->completer().tab();
3922                         break;
3923
3924                 case LFUN_COMPLETION_CANCEL:
3925                         if (d.current_work_area_) {
3926                                 if (d.current_work_area_->completer().popupVisible())
3927                                         d.current_work_area_->completer().hidePopup();
3928                                 else
3929                                         d.current_work_area_->completer().hideInline();
3930                         }
3931                         break;
3932
3933                 case LFUN_COMPLETION_ACCEPT:
3934                         if (d.current_work_area_)
3935                                 d.current_work_area_->completer().activate();
3936                         break;
3937
3938                 case LFUN_BUFFER_ZOOM_IN:
3939                 case LFUN_BUFFER_ZOOM_OUT: {
3940                         // use a signed temp to avoid overflow
3941                         int zoom = lyxrc.zoom;
3942                         if (cmd.argument().empty()) {
3943                                 if (cmd.action() == LFUN_BUFFER_ZOOM_IN)
3944                                         zoom += 20;
3945                                 else
3946                                         zoom -= 20;
3947                         } else
3948                                 zoom += convert<int>(cmd.argument());
3949
3950                         if (zoom < 10)
3951                                 zoom = 10;
3952                         lyxrc.zoom = zoom;
3953
3954                         dr.setMessage(bformat(_("Zoom level is now %1$d%"), lyxrc.zoom));
3955
3956                         // The global QPixmapCache is used in GuiPainter to cache text
3957                         // painting so we must reset it.
3958                         QPixmapCache::clear();
3959                         guiApp->fontLoader().update();
3960                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
3961                         break;
3962                 }
3963
3964                 case LFUN_VC_REGISTER:
3965                 case LFUN_VC_RENAME:
3966                 case LFUN_VC_COPY:
3967                 case LFUN_VC_CHECK_IN:
3968                 case LFUN_VC_CHECK_OUT:
3969                 case LFUN_VC_REPO_UPDATE:
3970                 case LFUN_VC_LOCKING_TOGGLE:
3971                 case LFUN_VC_REVERT:
3972                 case LFUN_VC_UNDO_LAST:
3973                 case LFUN_VC_COMMAND:
3974                 case LFUN_VC_COMPARE:
3975                         dispatchVC(cmd, dr);
3976                         break;
3977
3978                 case LFUN_SERVER_GOTO_FILE_ROW:
3979                         goToFileRow(to_utf8(cmd.argument()));
3980                         break;
3981
3982                 case LFUN_LYX_ACTIVATE:
3983                         activateWindow();
3984                         break;
3985
3986                 case LFUN_FORWARD_SEARCH: {
3987                 // it seems safe to assume we have a document buffer, since
3988                 // getStatus wants one.
3989                 // coverity[FORWARD_NULL]
3990                         Buffer const * doc_master = doc_buffer->masterBuffer();
3991                         FileName const path(doc_master->temppath());
3992                         string const texname = doc_master->isChild(doc_buffer)
3993                                 ? DocFileName(changeExtension(
3994                                         doc_buffer->absFileName(),
3995                                                 "tex")).mangledFileName()
3996                                 : doc_buffer->latexName();
3997                         string const fulltexname =
3998                                 support::makeAbsPath(texname, doc_master->temppath()).absFileName();
3999                         string const mastername =
4000                                 removeExtension(doc_master->latexName());
4001                         FileName const dviname(addName(path.absFileName(),
4002                                         addExtension(mastername, "dvi")));
4003                         FileName const pdfname(addName(path.absFileName(),
4004                                         addExtension(mastername, "pdf")));
4005                         bool const have_dvi = dviname.exists();
4006                         bool const have_pdf = pdfname.exists();
4007                         if (!have_dvi && !have_pdf) {
4008                                 dr.setMessage(_("Please, preview the document first."));
4009                                 break;
4010                         }
4011                         string outname = dviname.onlyFileName();
4012                         string command = lyxrc.forward_search_dvi;
4013                         if (!have_dvi || (have_pdf &&
4014                             pdfname.lastModified() > dviname.lastModified())) {
4015                                 outname = pdfname.onlyFileName();
4016                                 command = lyxrc.forward_search_pdf;
4017                         }
4018
4019                         DocIterator cur = bv->cursor();
4020                         int row = doc_buffer->texrow().rowFromDocIterator(cur).first;
4021                         LYXERR(Debug::ACTION, "Forward search: row:" << row
4022                                    << " cur:" << cur);
4023                         if (row == -1 || command.empty()) {
4024                                 dr.setMessage(_("Couldn't proceed."));
4025                                 break;
4026                         }
4027                         string texrow = convert<string>(row);
4028
4029                         command = subst(command, "$$n", texrow);
4030                         command = subst(command, "$$f", fulltexname);
4031                         command = subst(command, "$$t", texname);
4032                         command = subst(command, "$$o", outname);
4033
4034                         PathChanger p(path);
4035                         Systemcall one;
4036                         one.startscript(Systemcall::DontWait, command);
4037                         break;
4038                 }
4039
4040                 case LFUN_SPELLING_CONTINUOUSLY:
4041                         lyxrc.spellcheck_continuously = !lyxrc.spellcheck_continuously;
4042                         dr.screenUpdate(Update::Force | Update::FitCursor);
4043                         break;
4044
4045                 default:
4046                         // The LFUN must be for one of BufferView, Buffer or Cursor;
4047                         // let's try that:
4048                         dispatchToBufferView(cmd, dr);
4049                         break;
4050         }
4051
4052         // Part of automatic menu appearance feature.
4053         if (isFullScreen()) {
4054                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
4055                         menuBar()->hide();
4056         }
4057
4058         // Need to update bv because many LFUNs here might have destroyed it
4059         bv = currentBufferView();
4060
4061         // Clear non-empty selections
4062         // (e.g. from a "char-forward-select" followed by "char-backward-select")
4063         if (bv) {
4064                 Cursor & cur = bv->cursor();
4065                 if ((cur.selection() && cur.selBegin() == cur.selEnd())) {
4066                         cur.clearSelection();
4067                 }
4068         }
4069 }
4070
4071
4072 bool GuiView::lfunUiToggle(string const & ui_component)
4073 {
4074         if (ui_component == "scrollbar") {
4075                 // hide() is of no help
4076                 if (d.current_work_area_->verticalScrollBarPolicy() ==
4077                         Qt::ScrollBarAlwaysOff)
4078
4079                         d.current_work_area_->setVerticalScrollBarPolicy(
4080                                 Qt::ScrollBarAsNeeded);
4081                 else
4082                         d.current_work_area_->setVerticalScrollBarPolicy(
4083                                 Qt::ScrollBarAlwaysOff);
4084         } else if (ui_component == "statusbar") {
4085                 statusBar()->setVisible(!statusBar()->isVisible());
4086         } else if (ui_component == "menubar") {
4087                 menuBar()->setVisible(!menuBar()->isVisible());
4088         } else
4089         if (ui_component == "frame") {
4090                 int l, t, r, b;
4091                 getContentsMargins(&l, &t, &r, &b);
4092                 //are the frames in default state?
4093                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
4094                 if (l == 0) {
4095                         setContentsMargins(-2, -2, -2, -2);
4096                 } else {
4097                         setContentsMargins(0, 0, 0, 0);
4098                 }
4099         } else
4100         if (ui_component == "fullscreen") {
4101                 toggleFullScreen();
4102         } else
4103                 return false;
4104         return true;
4105 }
4106
4107
4108 void GuiView::toggleFullScreen()
4109 {
4110         if (isFullScreen()) {
4111                 for (int i = 0; i != d.splitter_->count(); ++i)
4112                         d.tabWorkArea(i)->setFullScreen(false);
4113                 setContentsMargins(0, 0, 0, 0);
4114                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4115                 restoreLayout();
4116                 menuBar()->show();
4117                 statusBar()->show();
4118         } else {
4119                 // bug 5274
4120                 hideDialogs("prefs", 0);
4121                 for (int i = 0; i != d.splitter_->count(); ++i)
4122                         d.tabWorkArea(i)->setFullScreen(true);
4123                 setContentsMargins(-2, -2, -2, -2);
4124                 saveLayout();
4125                 setWindowState(windowState() ^ Qt::WindowFullScreen);
4126                 if (lyxrc.full_screen_statusbar)
4127                         statusBar()->hide();
4128                 if (lyxrc.full_screen_menubar)
4129                         menuBar()->hide();
4130                 if (lyxrc.full_screen_toolbars) {
4131                         ToolbarMap::iterator end = d.toolbars_.end();
4132                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
4133                                 it->second->hide();
4134                 }
4135         }
4136
4137         // give dialogs like the TOC a chance to adapt
4138         updateDialogs();
4139 }
4140
4141
4142 Buffer const * GuiView::updateInset(Inset const * inset)
4143 {
4144         if (!inset)
4145                 return 0;
4146
4147         Buffer const * inset_buffer = &(inset->buffer());
4148
4149         for (int i = 0; i != d.splitter_->count(); ++i) {
4150                 GuiWorkArea * wa = d.tabWorkArea(i)->currentWorkArea();
4151                 if (!wa)
4152                         continue;
4153                 Buffer const * buffer = &(wa->bufferView().buffer());
4154                 if (inset_buffer == buffer)
4155                         wa->scheduleRedraw();
4156         }
4157         return inset_buffer;
4158 }
4159
4160
4161 void GuiView::restartCursor()
4162 {
4163         /* When we move around, or type, it's nice to be able to see
4164          * the cursor immediately after the keypress.
4165          */
4166         if (d.current_work_area_)
4167                 d.current_work_area_->startBlinkingCursor();
4168
4169         // Take this occasion to update the other GUI elements.
4170         updateDialogs();
4171         updateStatusBar();
4172 }
4173
4174
4175 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
4176 {
4177         if (d.current_work_area_)
4178                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
4179 }
4180
4181 namespace {
4182
4183 // This list should be kept in sync with the list of insets in
4184 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
4185 // dialog should have the same name as the inset.
4186 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
4187 // docs in LyXAction.cpp.
4188
4189 char const * const dialognames[] = {
4190
4191 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
4192 "citation", "compare", "comparehistory", "document", "errorlist", "ert",
4193 "external", "file", "findreplace", "findreplaceadv", "float", "graphics",
4194 "href", "include", "index", "index_print", "info", "listings", "label", "line",
4195 "log", "mathdelimiter", "mathmatrix", "mathspace", "nomenclature",
4196 "nomencl_print", "note", "paragraph", "phantom", "prefs", "ref",
4197 "sendto", "space", "spellchecker", "symbols", "tabular", "tabularcreate",
4198 "thesaurus", "texinfo", "toc", "view-source", "vspace", "wrap", "progress"};
4199
4200 char const * const * const end_dialognames =
4201         dialognames + (sizeof(dialognames) / sizeof(char *));
4202
4203 class cmpCStr {
4204 public:
4205         cmpCStr(char const * name) : name_(name) {}
4206         bool operator()(char const * other) {
4207                 return strcmp(other, name_) == 0;
4208         }
4209 private:
4210         char const * name_;
4211 };
4212
4213
4214 bool isValidName(string const & name)
4215 {
4216         return find_if(dialognames, end_dialognames,
4217                                 cmpCStr(name.c_str())) != end_dialognames;
4218 }
4219
4220 } // namespace anon
4221
4222
4223 void GuiView::resetDialogs()
4224 {
4225         // Make sure that no LFUN uses any GuiView.
4226         guiApp->setCurrentView(0);
4227         saveLayout();
4228         saveUISettings();
4229         menuBar()->clear();
4230         constructToolbars();
4231         guiApp->menus().fillMenuBar(menuBar(), this, false);
4232         d.layout_->updateContents(true);
4233         // Now update controls with current buffer.
4234         guiApp->setCurrentView(this);
4235         restoreLayout();
4236         restartCursor();
4237 }
4238
4239
4240 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
4241 {
4242         if (!isValidName(name))
4243                 return 0;
4244
4245         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
4246
4247         if (it != d.dialogs_.end()) {
4248                 if (hide_it)
4249                         it->second->hideView();
4250                 return it->second.get();
4251         }
4252
4253         Dialog * dialog = build(name);
4254         d.dialogs_[name].reset(dialog);
4255         if (lyxrc.allow_geometry_session)
4256                 dialog->restoreSession();
4257         if (hide_it)
4258                 dialog->hideView();
4259         return dialog;
4260 }
4261
4262
4263 void GuiView::showDialog(string const & name, string const & data,
4264         Inset * inset)
4265 {
4266         triggerShowDialog(toqstr(name), toqstr(data), inset);
4267 }
4268
4269
4270 void GuiView::doShowDialog(QString const & qname, QString const & qdata,
4271         Inset * inset)
4272 {
4273         if (d.in_show_)
4274                 return;
4275
4276         const string name = fromqstr(qname);
4277         const string data = fromqstr(qdata);
4278
4279         d.in_show_ = true;
4280         try {
4281                 Dialog * dialog = findOrBuild(name, false);
4282                 if (dialog) {
4283                         bool const visible = dialog->isVisibleView();
4284                         dialog->showData(data);
4285                         if (inset && currentBufferView())
4286                                 currentBufferView()->editInset(name, inset);
4287                         // We only set the focus to the new dialog if it was not yet
4288                         // visible in order not to change the existing previous behaviour
4289                         if (visible) {
4290                                 // activateWindow is needed for floating dockviews
4291                                 dialog->asQWidget()->raise();
4292                                 dialog->asQWidget()->activateWindow();
4293                                 dialog->asQWidget()->setFocus();
4294                         }
4295                 }
4296         }
4297         catch (ExceptionMessage const & ex) {
4298                 d.in_show_ = false;
4299                 throw ex;
4300         }
4301         d.in_show_ = false;
4302 }
4303
4304
4305 bool GuiView::isDialogVisible(string const & name) const
4306 {
4307         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4308         if (it == d.dialogs_.end())
4309                 return false;
4310         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
4311 }
4312
4313
4314 void GuiView::hideDialog(string const & name, Inset * inset)
4315 {
4316         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
4317         if (it == d.dialogs_.end())
4318                 return;
4319
4320         if (inset) {
4321                 if (!currentBufferView())
4322                         return;
4323                 if (inset != currentBufferView()->editedInset(name))
4324                         return;
4325         }
4326
4327         Dialog * const dialog = it->second.get();
4328         if (dialog->isVisibleView())
4329                 dialog->hideView();
4330         if (currentBufferView())
4331                 currentBufferView()->editInset(name, 0);
4332 }
4333
4334
4335 void GuiView::disconnectDialog(string const & name)
4336 {
4337         if (!isValidName(name))
4338                 return;
4339         if (currentBufferView())
4340                 currentBufferView()->editInset(name, 0);
4341 }
4342
4343
4344 void GuiView::hideAll() const
4345 {
4346         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4347         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4348
4349         for(; it != end; ++it)
4350                 it->second->hideView();
4351 }
4352
4353
4354 void GuiView::updateDialogs()
4355 {
4356         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
4357         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
4358
4359         for(; it != end; ++it) {
4360                 Dialog * dialog = it->second.get();
4361                 if (dialog) {
4362                         if (dialog->needBufferOpen() && !documentBufferView())
4363                                 hideDialog(fromqstr(dialog->name()), 0);
4364                         else if (dialog->isVisibleView())
4365                                 dialog->checkStatus();
4366                 }
4367         }
4368         updateToolbars();
4369         updateLayoutList();
4370 }
4371
4372 Dialog * createDialog(GuiView & lv, string const & name);
4373
4374 // will be replaced by a proper factory...
4375 Dialog * createGuiAbout(GuiView & lv);
4376 Dialog * createGuiBibtex(GuiView & lv);
4377 Dialog * createGuiChanges(GuiView & lv);
4378 Dialog * createGuiCharacter(GuiView & lv);
4379 Dialog * createGuiCitation(GuiView & lv);
4380 Dialog * createGuiCompare(GuiView & lv);
4381 Dialog * createGuiCompareHistory(GuiView & lv);
4382 Dialog * createGuiDelimiter(GuiView & lv);
4383 Dialog * createGuiDocument(GuiView & lv);
4384 Dialog * createGuiErrorList(GuiView & lv);
4385 Dialog * createGuiExternal(GuiView & lv);
4386 Dialog * createGuiGraphics(GuiView & lv);
4387 Dialog * createGuiInclude(GuiView & lv);
4388 Dialog * createGuiIndex(GuiView & lv);
4389 Dialog * createGuiListings(GuiView & lv);
4390 Dialog * createGuiLog(GuiView & lv);
4391 Dialog * createGuiMathMatrix(GuiView & lv);
4392 Dialog * createGuiNote(GuiView & lv);
4393 Dialog * createGuiParagraph(GuiView & lv);
4394 Dialog * createGuiPhantom(GuiView & lv);
4395 Dialog * createGuiPreferences(GuiView & lv);
4396 Dialog * createGuiPrint(GuiView & lv);
4397 Dialog * createGuiPrintindex(GuiView & lv);
4398 Dialog * createGuiRef(GuiView & lv);
4399 Dialog * createGuiSearch(GuiView & lv);
4400 Dialog * createGuiSearchAdv(GuiView & lv);
4401 Dialog * createGuiSendTo(GuiView & lv);
4402 Dialog * createGuiShowFile(GuiView & lv);
4403 Dialog * createGuiSpellchecker(GuiView & lv);
4404 Dialog * createGuiSymbols(GuiView & lv);
4405 Dialog * createGuiTabularCreate(GuiView & lv);
4406 Dialog * createGuiTexInfo(GuiView & lv);
4407 Dialog * createGuiToc(GuiView & lv);
4408 Dialog * createGuiThesaurus(GuiView & lv);
4409 Dialog * createGuiViewSource(GuiView & lv);
4410 Dialog * createGuiWrap(GuiView & lv);
4411 Dialog * createGuiProgressView(GuiView & lv);
4412
4413
4414
4415 Dialog * GuiView::build(string const & name)
4416 {
4417         LASSERT(isValidName(name), return 0);
4418
4419         Dialog * dialog = createDialog(*this, name);
4420         if (dialog)
4421                 return dialog;
4422
4423         if (name == "aboutlyx")
4424                 return createGuiAbout(*this);
4425         if (name == "bibtex")
4426                 return createGuiBibtex(*this);
4427         if (name == "changes")
4428                 return createGuiChanges(*this);
4429         if (name == "character")
4430                 return createGuiCharacter(*this);
4431         if (name == "citation")
4432                 return createGuiCitation(*this);
4433         if (name == "compare")
4434                 return createGuiCompare(*this);
4435         if (name == "comparehistory")
4436                 return createGuiCompareHistory(*this);
4437         if (name == "document")
4438                 return createGuiDocument(*this);
4439         if (name == "errorlist")
4440                 return createGuiErrorList(*this);
4441         if (name == "external")
4442                 return createGuiExternal(*this);
4443         if (name == "file")
4444                 return createGuiShowFile(*this);
4445         if (name == "findreplace")
4446                 return createGuiSearch(*this);
4447         if (name == "findreplaceadv")
4448                 return createGuiSearchAdv(*this);
4449         if (name == "graphics")
4450                 return createGuiGraphics(*this);
4451         if (name == "include")
4452                 return createGuiInclude(*this);
4453         if (name == "index")
4454                 return createGuiIndex(*this);
4455         if (name == "index_print")
4456                 return createGuiPrintindex(*this);
4457         if (name == "listings")
4458                 return createGuiListings(*this);
4459         if (name == "log")
4460                 return createGuiLog(*this);
4461         if (name == "mathdelimiter")
4462                 return createGuiDelimiter(*this);
4463         if (name == "mathmatrix")
4464                 return createGuiMathMatrix(*this);
4465         if (name == "note")
4466                 return createGuiNote(*this);
4467         if (name == "paragraph")
4468                 return createGuiParagraph(*this);
4469         if (name == "phantom")
4470                 return createGuiPhantom(*this);
4471         if (name == "prefs")
4472                 return createGuiPreferences(*this);
4473         if (name == "ref")
4474                 return createGuiRef(*this);
4475         if (name == "sendto")
4476                 return createGuiSendTo(*this);
4477         if (name == "spellchecker")
4478                 return createGuiSpellchecker(*this);
4479         if (name == "symbols")
4480                 return createGuiSymbols(*this);
4481         if (name == "tabularcreate")
4482                 return createGuiTabularCreate(*this);
4483         if (name == "texinfo")
4484                 return createGuiTexInfo(*this);
4485         if (name == "thesaurus")
4486                 return createGuiThesaurus(*this);
4487         if (name == "toc")
4488                 return createGuiToc(*this);
4489         if (name == "view-source")
4490                 return createGuiViewSource(*this);
4491         if (name == "wrap")
4492                 return createGuiWrap(*this);
4493         if (name == "progress")
4494                 return createGuiProgressView(*this);
4495
4496         return 0;
4497 }
4498
4499
4500 } // namespace frontend
4501 } // namespace lyx
4502
4503 #include "moc_GuiView.cpp"