src/frontends/LyXView.cpp

   1 /**
   2  * \file LyXView.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  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "LyXView.h"
  15 #include "Dialogs.h"
  16 #include "Timeout.h"
  17 #include "Toolbars.h"
  18 #include "Menubar.h"
  19 #include "WorkArea.h"
  20 #include "Gui.h"
  21
  22 #include "Buffer.h"
  23 #include "BufferList.h"
  24 #include "BufferParams.h"
  25 #include "BufferView.h"
  26 #include "bufferview_funcs.h"
  27 #include "Cursor.h"
  28 #include "debug.h"
  29 #include "ErrorList.h"
  30 #include "FuncRequest.h"
  31 #include "gettext.h"
  32 #include "Intl.h"
  33 #include "callback.h"
  34 #include "LyXFunc.h"
  35 #include "LyXRC.h"
  36 #include "Text.h"
  37 #include "MenuBackend.h"
  38 #include "Paragraph.h"
  39
  40 #include "controllers/ControlCommandBuffer.h"
  41
  42 #include "support/lstrings.h"
  43 #include "support/filetools.h" // OnlyFilename()
  44
  45 #include <boost/bind.hpp>
  46
  47
  48 namespace lyx {
  49
  50 #ifdef HAVE_SYS_TIME_H
  51 # include <sys/time.h>
  52 #endif
  53 #ifdef HAVE_UNISTD_H
  54 # include <unistd.h>
  55 #endif
  56
  57 using frontend::WorkArea;
  58
  59 using support::bformat;
  60 using support::FileName;
  61 using support::makeDisplayPath;
  62 using support::onlyFilename;
  63
  64 using std::endl;
  65 using std::string;
  66
  67 using lyx::frontend::ControlCommandBuffer;
  68
  69 string current_layout;
  70
  71
  72 LyXView::LyXView(int id)
  73         : work_area_(0),
  74           toolbars_(new Toolbars(*this)),
  75           autosave_timeout_(new Timeout(5000)),
  76           dialogs_(new Dialogs(*this)),
  77           controlcommand_(new ControlCommandBuffer(*this)), id_(id)
  78 {
  79         // Start autosave timer
  80         if (lyxrc.autosave) {
  81                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
  82                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
  83                 autosave_timeout_->start();
  84         }
  85 }
  86
  87
  88 LyXView::~LyXView()
  89 {
  90         disconnectBuffer();
  91 }
  92
  93
  94 // FIXME, there's only one WorkArea per LyXView possible for now.
  95 void LyXView::setWorkArea(WorkArea * work_area)
  96 {
  97         BOOST_ASSERT(work_area);
  98         work_area_ = work_area;
  99         work_area_ids_.clear();
 100         work_area_ids_.push_back(work_area_->id());
 101 }
 102
 103
 104 // FIXME, there's only one WorkArea per LyXView possible for now.
 105 WorkArea const * LyXView::currentWorkArea() const
 106 {
 107         return work_area_;
 108 }
 109
 110
 111 // FIXME, there's only one WorkArea per LyXView possible for now.
 112 WorkArea * LyXView::currentWorkArea()
 113 {
 114         return work_area_;
 115 }
 116
 117
 118 Buffer * LyXView::buffer() const
 119 {
 120         BOOST_ASSERT(work_area_);
 121         return work_area_->bufferView().buffer();
 122 }
 123
 124
 125 void LyXView::setBuffer(Buffer * b)
 126 {
 127         busy(true);
 128
 129         BOOST_ASSERT(work_area_);
 130         if (work_area_->bufferView().buffer())
 131                 disconnectBuffer();
 132
 133         if (!b && theBufferList().empty())
 134                 getDialogs().hideBufferDependent();
 135
 136         work_area_->bufferView().setBuffer(b);
 137         // Make sure the TOC is updated before anything else.
 138         updateToc();
 139
 140         if (work_area_->bufferView().buffer()) {
 141                 // Buffer-dependent dialogs should be updated or
 142                 // hidden. This should go here because some dialogs (eg ToC)
 143                 // require bv_->text.
 144                 getDialogs().updateBufferDependent(true);
 145                 connectBuffer(*work_area_->bufferView().buffer());
 146         }
 147
 148         if (quitting)
 149                 return;
 150
 151         updateMenubar();
 152         updateToolbars();
 153         updateLayoutChoice();
 154         updateWindowTitle();
 155         updateStatusBar();
 156         updateTab();
 157         busy(false);
 158         work_area_->redraw();
 159 }
 160
 161
 162 bool LyXView::loadLyXFile(FileName const & filename, bool tolastfiles)
 163 {
 164         busy(true);
 165
 166         BOOST_ASSERT(work_area_);
 167         bool const hadBuffer = work_area_->bufferView().buffer();
 168         if (hadBuffer)
 169                 disconnectBuffer();
 170
 171         bool const loaded =
 172                 work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 173
 174         updateToc();
 175         updateMenubar();
 176         updateToolbars();
 177         updateLayoutChoice();
 178         updateWindowTitle();
 179         updateTab();
 180         if (loaded) {
 181                 connectBuffer(*work_area_->bufferView().buffer());
 182                 showErrorList("Parse");
 183         } else if (hadBuffer)
 184                 //Need to reconnect the buffer if the load failed
 185                 connectBuffer(*work_area_->bufferView().buffer());
 186         updateStatusBar();
 187         busy(false);
 188         work_area_->redraw();
 189         return loaded;
 190 }
 191
 192
 193 void LyXView::connectBuffer(Buffer & buf)
 194 {
 195         if (errorsConnection_.connected())
 196                 disconnectBuffer();
 197
 198         BOOST_ASSERT(work_area_);
 199         bufferChangedConnection_ =
 200                 buf.changed.connect(
 201                         boost::bind(&WorkArea::redraw, work_area_));
 202
 203         bufferStructureChangedConnection_ =
 204                 buf.getMasterBuffer()->structureChanged.connect(
 205                         boost::bind(&LyXView::updateToc, this));
 206
 207         errorsConnection_ =
 208                 buf.errors.connect(
 209                         boost::bind(&LyXView::showErrorList, this, _1));
 210
 211         messageConnection_ =
 212                 buf.message.connect(
 213                         boost::bind(&LyXView::message, this, _1));
 214
 215         busyConnection_ =
 216                 buf.busy.connect(
 217                         boost::bind(&LyXView::busy, this, _1));
 218
 219         titleConnection_ =
 220                 buf.updateTitles.connect(
 221                         boost::bind(&LyXView::updateWindowTitle, this));
 222
 223         timerConnection_ =
 224                 buf.resetAutosaveTimers.connect(
 225                         boost::bind(&LyXView::resetAutosaveTimer, this));
 226
 227         readonlyConnection_ =
 228                 buf.readonly.connect(
 229                         boost::bind(&LyXView::showReadonly, this, _1));
 230
 231         closingConnection_ =
 232                 buf.closing.connect(
 233                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 234 }
 235
 236
 237 void LyXView::disconnectBuffer()
 238 {
 239         errorsConnection_.disconnect();
 240         bufferChangedConnection_.disconnect();
 241         bufferStructureChangedConnection_.disconnect();
 242         messageConnection_.disconnect();
 243         busyConnection_.disconnect();
 244         titleConnection_.disconnect();
 245         timerConnection_.disconnect();
 246         readonlyConnection_.disconnect();
 247         closingConnection_.disconnect();
 248         layout_changed_connection_.disconnect();
 249 }
 250
 251
 252 void LyXView::connectBufferView(BufferView & bv)
 253 {
 254         show_dialog_connection_ = bv.showDialog.connect(
 255                         boost::bind(&LyXView::showDialog, this, _1));
 256         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 257                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 258         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 259                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 260         update_dialog_connection_ = bv.updateDialog.connect(
 261                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 262         layout_changed_connection_ = bv.layoutChanged.connect(
 263                         boost::bind(&Toolbars::setLayout, toolbars_.get(), _1));
 264 }
 265
 266
 267 void LyXView::disconnectBufferView()
 268 {
 269         show_dialog_connection_.disconnect();
 270         show_dialog_with_data_connection_.disconnect();
 271         show_inset_dialog_connection_.disconnect();
 272         update_dialog_connection_.disconnect();
 273 }
 274
 275
 276 void LyXView::showErrorList(string const & error_type)
 277 {
 278         ErrorList & el = buffer()->errorList(error_type);
 279         if (!el.empty()) {
 280                 getDialogs().show("errorlist", error_type);
 281         }
 282 }
 283
 284
 285 void LyXView::showDialog(string const & name)
 286 {
 287         getDialogs().show(name);
 288 }
 289
 290
 291 void LyXView::showDialogWithData(string const & name, string const & data)
 292 {
 293         getDialogs().show(name, data);
 294 }
 295
 296
 297 void LyXView::showInsetDialog(string const & name, string const & data,
 298                 Inset * inset)
 299 {
 300         getDialogs().show(name, data, inset);
 301 }
 302
 303
 304 void LyXView::updateDialog(string const & name, string const & data)
 305 {
 306         if (getDialogs().visible(name))
 307                 getDialogs().update(name, data);
 308 }
 309
 310
 311 void LyXView::showReadonly(bool)
 312 {
 313         updateWindowTitle();
 314         getDialogs().updateBufferDependent(false);
 315 }
 316
 317
 318 BufferView * LyXView::view() const
 319 {
 320         BOOST_ASSERT(work_area_);
 321         return &work_area_->bufferView();
 322 }
 323
 324
 325 void LyXView::updateToc()
 326 {
 327         updateDialog("toc", "");
 328 }
 329
 330
 331 void LyXView::updateToolbars()
 332 {
 333         BOOST_ASSERT(work_area_);
 334         bool const math =
 335                 work_area_->bufferView().cursor().inMathed();
 336         bool const table =
 337                 lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 338         bool const review =
 339                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 340                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 341
 342         toolbars_->update(math, table, review);
 343         // update redaonly status of open dialogs. This could also be in
 344         // updateMenubar(), but since updateToolbars() and updateMenubar()
 345         // are always called together it is only here.
 346         getDialogs().checkStatus();
 347 }
 348
 349
 350 ToolbarInfo::Flags LyXView::getToolbarState(string const & name)
 351 {
 352         return toolbars_->getToolbarState(name);
 353 }
 354
 355
 356 void LyXView::toggleToolbarState(string const & name, bool allowauto)
 357 {
 358         // it is possible to get current toolbar status like this,...
 359         // but I decide to obey the order of ToolbarBackend::flags
 360         // and disregard real toolbar status.
 361         // toolbars_->saveToolbarInfo();
 362         //
 363         // toggle state on/off/auto
 364         toolbars_->toggleToolbarState(name, allowauto);
 365         // update toolbar
 366         updateToolbars();
 367 }
 368
 369
 370 void LyXView::updateMenubar()
 371 {
 372         menubar_->update();
 373 }
 374
 375
 376 void LyXView::autoSave()
 377 {
 378         LYXERR(Debug::INFO) << "Running autoSave()" << endl;
 379
 380         if (view()->buffer())
 381                 lyx::autoSave(view());
 382 }
 383
 384
 385 void LyXView::resetAutosaveTimer()
 386 {
 387         if (lyxrc.autosave)
 388                 autosave_timeout_->restart();
 389 }
 390
 391
 392 void LyXView::updateLayoutChoice()
 393 {
 394         // Don't show any layouts without a buffer
 395         if (!view()->buffer()) {
 396                 toolbars_->clearLayoutList();
 397                 return;
 398         }
 399
 400         // Update the layout display
 401         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 402                 current_layout = buffer()->params().getTextClass().defaultLayoutName();
 403         }
 404
 405         BOOST_ASSERT(work_area_);
 406         string const & layout = work_area_->bufferView().cursor().
 407                 innerParagraph().layout()->name();
 408
 409         if (layout != current_layout) {
 410                 toolbars_->setLayout(layout);
 411                 current_layout = layout;
 412         }
 413 }
 414
 415
 416 void LyXView::updateWindowTitle()
 417 {
 418         docstring maximize_title = lyx::from_ascii("LyX");
 419         docstring minimize_title = lyx::from_ascii("LyX");
 420
 421         if (view()->buffer()) {
 422                 string const cur_title = buffer()->fileName();
 423                 if (!cur_title.empty()) {
 424                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 425                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 426                         if (!buffer()->isClean()) {
 427                                 maximize_title += _(" (changed)");
 428                                 minimize_title += lyx::char_type('*');
 429                         }
 430                         if (buffer()->isReadonly())
 431                                 maximize_title += _(" (read only)");
 432                 }
 433         }
 434
 435         setWindowTitle(maximize_title, minimize_title);
 436         updateTab();
 437 }
 438
 439
 440 void LyXView::dispatch(FuncRequest const & cmd)
 441 {
 442         theLyXFunc().setLyXView(this);
 443         lyx::dispatch(cmd);
 444 }
 445
 446
 447 Buffer const * const LyXView::updateInset(Inset const * inset) const
 448 {
 449         Buffer const * buffer_ptr = 0;
 450         if (inset) {
 451                 BOOST_ASSERT(work_area_);
 452                 work_area_->scheduleRedraw();
 453
 454                 buffer_ptr = work_area_->bufferView().buffer();
 455         }
 456         return buffer_ptr;
 457 }
 458
 459
 460 } // namespace lyx