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