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
  16 #include "Dialogs.h"
  17 #include "Toolbars.h"
  18 #include "WorkArea.h"
  19 #include "Gui.h"
  20
  21 #include "Buffer.h"
  22 #include "buffer_funcs.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 "LyX.h"
  35 #include "LyXFunc.h"
  36 #include "LyXRC.h"
  37 #include "Text.h"
  38 #include "MenuBackend.h"
  39 #include "Paragraph.h"
  40
  41 #include "support/lstrings.h"
  42 #include "support/filetools.h" // OnlyFilename()
  43 #include "support/Timeout.h"
  44
  45 #include <boost/bind.hpp>
  46
  47
  48 #ifdef HAVE_SYS_TIME_H
  49 # include <sys/time.h>
  50 #endif
  51 #ifdef HAVE_UNISTD_H
  52 # include <unistd.h>
  53 #endif
  54
  55 using std::endl;
  56 using std::string;
  57
  58 namespace lyx {
  59
  60 using support::bformat;
  61 using support::FileName;
  62 using support::makeDisplayPath;
  63 using support::onlyFilename;
  64
  65 namespace frontend {
  66
  67 docstring current_layout;
  68
  69 LyXView::LyXView(int id)
  70         : toolbars_(new Toolbars(*this)),
  71           autosave_timeout_(new Timeout(5000)),
  72           dialogs_(new Dialogs(*this)),
  73           id_(id)
  74 {
  75         // Start autosave timer
  76         if (lyxrc.autosave) {
  77                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
  78                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
  79                 autosave_timeout_->start();
  80         }
  81 }
  82
  83
  84 LyXView::~LyXView()
  85 {
  86         disconnectBuffer();
  87         disconnectBufferView();
  88 }
  89
  90
  91 Buffer * LyXView::buffer()
  92 {
  93         WorkArea * work_area = currentWorkArea();
  94         if (work_area)
  95                 return &work_area->bufferView().buffer();
  96         return 0;
  97 }
  98
  99
 100 Buffer const * LyXView::buffer() const
 101 {
 102         WorkArea const * work_area = currentWorkArea();
 103         if (work_area)
 104                 return &work_area->bufferView().buffer();
 105         return 0;
 106 }
 107
 108
 109 void LyXView::setBuffer(Buffer * newBuffer)
 110 {
 111         BOOST_ASSERT(newBuffer);
 112         busy(true);
 113
 114         WorkArea * wa = workArea(*newBuffer);
 115         if (wa == 0) {
 116                 updateLabels(*newBuffer->getMasterBuffer());
 117                 wa = addWorkArea(*newBuffer);
 118         } else
 119                 //Disconnect the old buffer...there's no new one.
 120                 disconnectBuffer();
 121         connectBuffer(*newBuffer);
 122         connectBufferView(wa->bufferView());
 123         setCurrentWorkArea(wa);
 124
 125         busy(false);
 126 }
 127
 128
 129 Buffer * LyXView::loadLyXFile(FileName const & filename, bool tolastfiles)
 130 {
 131         busy(true);
 132
 133         Buffer * newBuffer = checkAndLoadLyXFile(filename);
 134
 135         if (!newBuffer) {
 136                 message(_("Document not loaded."));
 137                 updateStatusBar();
 138                 busy(false);
 139                 return 0;
 140         }
 141
 142         WorkArea * wa = workArea(*newBuffer);
 143         if (wa == 0)
 144                 wa = addWorkArea(*newBuffer);
 145
 146         // scroll to the position when the file was last closed
 147         if (lyxrc.use_lastfilepos) {
 148                 pit_type pit;
 149                 pos_type pos;
 150                 boost::tie(pit, pos) = LyX::ref().session().lastFilePos().load(filename);
 151                 // if successfully move to pit (returned par_id is not zero),
 152                 // update metrics and reset font
 153                 wa->bufferView().moveToPosition(pit, pos, 0, 0);
 154         }
 155
 156         if (tolastfiles)
 157                 LyX::ref().session().lastFiles().add(filename);
 158
 159         busy(false);
 160         return newBuffer;
 161 }
 162
 163
 164 void LyXView::connectBuffer(Buffer & buf)
 165 {
 166         if (errorsConnection_.connected())
 167                 disconnectBuffer();
 168
 169         bufferStructureChangedConnection_ =
 170                 buf.getMasterBuffer()->structureChanged.connect(
 171                         boost::bind(&LyXView::updateToc, this));
 172
 173         bufferEmbeddingChangedConnection_ =
 174                 buf.embeddingChanged.connect(
 175                         boost::bind(&LyXView::updateEmbeddedFiles, this));
 176
 177         errorsConnection_ =
 178                 buf.errors.connect(
 179                         boost::bind(&LyXView::showErrorList, this, _1));
 180
 181         messageConnection_ =
 182                 buf.message.connect(
 183                         boost::bind(&LyXView::message, this, _1));
 184
 185         busyConnection_ =
 186                 buf.busy.connect(
 187                         boost::bind(&LyXView::busy, this, _1));
 188
 189         titleConnection_ =
 190                 buf.updateTitles.connect(
 191                         boost::bind(&LyXView::updateWindowTitle, this));
 192
 193         timerConnection_ =
 194                 buf.resetAutosaveTimers.connect(
 195                         boost::bind(&LyXView::resetAutosaveTimer, this));
 196
 197         readonlyConnection_ =
 198                 buf.readonly.connect(
 199                         boost::bind(&LyXView::showReadonly, this, _1));
 200 }
 201
 202
 203 void LyXView::disconnectBuffer()
 204 {
 205         errorsConnection_.disconnect();
 206         bufferStructureChangedConnection_.disconnect();
 207         bufferEmbeddingChangedConnection_.disconnect();
 208         messageConnection_.disconnect();
 209         busyConnection_.disconnect();
 210         titleConnection_.disconnect();
 211         timerConnection_.disconnect();
 212         readonlyConnection_.disconnect();
 213         layout_changed_connection_.disconnect();
 214 }
 215
 216
 217 void LyXView::connectBufferView(BufferView & bv)
 218 {
 219         message_connection_ = bv.message.connect(
 220                         boost::bind(&LyXView::message, this, _1));
 221         show_dialog_connection_ = bv.showDialog.connect(
 222                         boost::bind(&LyXView::showDialog, this, _1));
 223         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 224                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 225         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 226                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 227         update_dialog_connection_ = bv.updateDialog.connect(
 228                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 229         layout_changed_connection_ = bv.layoutChanged.connect(
 230                         boost::bind(&Toolbars::setLayout, toolbars_.get(), _1));
 231 }
 232
 233
 234 void LyXView::disconnectBufferView()
 235 {
 236         message_connection_.disconnect();
 237         show_dialog_connection_.disconnect();
 238         show_dialog_with_data_connection_.disconnect();
 239         show_inset_dialog_connection_.disconnect();
 240         update_dialog_connection_.disconnect();
 241 }
 242
 243
 244 void LyXView::showErrorList(string const & error_type)
 245 {
 246         ErrorList & el = buffer()->errorList(error_type);
 247         if (!el.empty()) {
 248                 getDialogs().show("errorlist", error_type);
 249         }
 250 }
 251
 252
 253 void LyXView::showDialog(string const & name)
 254 {
 255         getDialogs().show(name);
 256 }
 257
 258
 259 void LyXView::showDialogWithData(string const & name, string const & data)
 260 {
 261         getDialogs().show(name, data);
 262 }
 263
 264
 265 void LyXView::showInsetDialog(string const & name, string const & data,
 266                 Inset * inset)
 267 {
 268         getDialogs().show(name, data, inset);
 269 }
 270
 271
 272 void LyXView::updateDialog(string const & name, string const & data)
 273 {
 274         if (getDialogs().visible(name))
 275                 getDialogs().update(name, data);
 276 }
 277
 278
 279 void LyXView::showReadonly(bool)
 280 {
 281         updateWindowTitle();
 282         getDialogs().updateBufferDependent(false);
 283 }
 284
 285
 286 BufferView * LyXView::view()
 287 {
 288         WorkArea * wa = currentWorkArea();
 289         return wa? &wa->bufferView() : 0;
 290 }
 291
 292
 293 void LyXView::updateToc()
 294 {
 295         updateDialog("toc", "");
 296 }
 297
 298
 299 void LyXView::updateEmbeddedFiles()
 300 {
 301         updateDialog("embedding", "");
 302 }
 303
 304
 305 void LyXView::updateToolbars()
 306 {
 307         WorkArea * wa = currentWorkArea();
 308         if (wa) {
 309                 bool const math =
 310                         wa->bufferView().cursor().inMathed();
 311                 bool const table =
 312                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 313                 bool const review =
 314                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 315                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 316
 317                 toolbars_->update(math, table, review);
 318         } else
 319                 toolbars_->update(false, false, false);
 320
 321         // update redaonly status of open dialogs.
 322         getDialogs().checkStatus();
 323 }
 324
 325
 326 ToolbarInfo * LyXView::getToolbarInfo(string const & name)
 327 {
 328         return toolbars_->getToolbarInfo(name);
 329 }
 330
 331
 332 void LyXView::toggleToolbarState(string const & name, bool allowauto)
 333 {
 334         // it is possible to get current toolbar status like this,...
 335         // but I decide to obey the order of ToolbarBackend::flags
 336         // and disregard real toolbar status.
 337         // toolbars_->saveToolbarInfo();
 338         //
 339         // toggle state on/off/auto
 340         toolbars_->toggleToolbarState(name, allowauto);
 341         // update toolbar
 342         updateToolbars();
 343 }
 344
 345
 346 void LyXView::autoSave()
 347 {
 348         LYXERR(Debug::INFO) << "Running autoSave()" << endl;
 349
 350         if (buffer())
 351                 lyx::autoSave(view());
 352 }
 353
 354
 355 void LyXView::resetAutosaveTimer()
 356 {
 357         if (lyxrc.autosave)
 358                 autosave_timeout_->restart();
 359 }
 360
 361
 362 void LyXView::updateLayoutChoice()
 363 {
 364         // Don't show any layouts without a buffer
 365         if (!buffer()) {
 366                 toolbars_->clearLayoutList();
 367                 return;
 368         }
 369
 370         // Update the layout display
 371         if (toolbars_->updateLayoutList(buffer()->params().getTextClass_ptr())) {
 372                 current_layout = buffer()->params().getTextClass().defaultLayoutName();
 373         }
 374
 375         docstring const & layout = currentWorkArea()->bufferView().cursor().
 376                 innerParagraph().layout()->name();
 377
 378         if (layout != current_layout) {
 379                 toolbars_->setLayout(layout);
 380                 current_layout = layout;
 381         }
 382 }
 383
 384
 385 void LyXView::updateWindowTitle()
 386 {
 387         docstring maximize_title = lyx::from_ascii("LyX");
 388         docstring minimize_title = lyx::from_ascii("LyX");
 389
 390         Buffer * buf = buffer();
 391         if (buf) {
 392                 string const cur_title = buf->fileName();
 393                 if (!cur_title.empty()) {
 394                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 395                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 396                         if (!buf->isClean()) {
 397                                 maximize_title += _(" (changed)");
 398                                 minimize_title += lyx::char_type('*');
 399                         }
 400                         if (buf->isReadonly())
 401                                 maximize_title += _(" (read only)");
 402                 }
 403         }
 404
 405         setWindowTitle(maximize_title, minimize_title);
 406 }
 407
 408
 409 void LyXView::dispatch(FuncRequest const & cmd)
 410 {
 411         string const argument = to_utf8(cmd.argument());
 412         switch(cmd.action) {
 413                 case LFUN_BUFFER_SWITCH:
 414                         setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
 415                         break;
 416                 default:
 417                         theLyXFunc().setLyXView(this);
 418                         lyx::dispatch(cmd);
 419         }
 420 }
 421
 422
 423 Buffer const * const LyXView::updateInset(Inset const * inset)
 424 {
 425         WorkArea * work_area = currentWorkArea();
 426         if (!work_area)
 427                 return 0;
 428
 429         if (inset) {
 430                 BOOST_ASSERT(work_area);
 431                 work_area->scheduleRedraw();
 432         }
 433         return &work_area->bufferView().buffer();
 434 }
 435
 436
 437 void LyXView::openLayoutList()
 438 {
 439         toolbars_->openLayoutList();
 440 }
 441
 442
 443 bool LyXView::isToolbarVisible(std::string const & id)
 444 {
 445         return toolbars_->visible(id);
 446 }
 447
 448 } // namespace frontend
 449 } // namespace lyx