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 "Cursor.h"
  27 #include "debug.h"
  28 #include "ErrorList.h"
  29 #include "FuncRequest.h"
  30 #include "gettext.h"
  31 #include "Intl.h"
  32 #include "callback.h"
  33 #include "LyX.h"
  34 #include "LyXFunc.h"
  35 #include "LyXRC.h"
  36 #include "Text.h"
  37 #include "MenuBackend.h"
  38 #include "Paragraph.h"
  39
  40 #include "support/lstrings.h"
  41 #include "support/filetools.h" // OnlyFilename()
  42 #include "support/Timeout.h"
  43
  44 #include <boost/bind.hpp>
  45
  46
  47 #ifdef HAVE_SYS_TIME_H
  48 # include <sys/time.h>
  49 #endif
  50 #ifdef HAVE_UNISTD_H
  51 # include <unistd.h>
  52 #endif
  53
  54 using std::endl;
  55 using std::string;
  56
  57 namespace lyx {
  58
  59 using support::bformat;
  60 using support::FileName;
  61 using support::makeDisplayPath;
  62 using support::onlyFilename;
  63
  64 namespace frontend {
  65
  66 docstring current_layout;
  67
  68 LyXView::LyXView(int id)
  69         : toolbars_(new Toolbars(*this)),
  70           autosave_timeout_(new Timeout(5000)),
  71           dialogs_(new Dialogs(*this)),
  72           id_(id)
  73 {
  74         // Start autosave timer
  75         if (lyxrc.autosave) {
  76                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
  77                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
  78                 autosave_timeout_->start();
  79         }
  80 }
  81
  82
  83 LyXView::~LyXView()
  84 {
  85         disconnectBuffer();
  86         disconnectBufferView();
  87         delete dialogs_;
  88         delete toolbars_;
  89         delete autosave_timeout_;
  90 }
  91
  92
  93 Buffer * LyXView::buffer()
  94 {
  95         WorkArea * work_area = currentWorkArea();
  96         if (work_area)
  97                 return &work_area->bufferView().buffer();
  98         return 0;
  99 }
 100
 101
 102 Buffer const * LyXView::buffer() const
 103 {
 104         WorkArea const * work_area = currentWorkArea();
 105         if (work_area)
 106                 return &work_area->bufferView().buffer();
 107         return 0;
 108 }
 109
 110
 111 void LyXView::setBuffer(Buffer * newBuffer)
 112 {
 113         BOOST_ASSERT(newBuffer);
 114         busy(true);
 115
 116         WorkArea * wa = workArea(*newBuffer);
 117         if (wa == 0) {
 118                 updateLabels(*newBuffer->getMasterBuffer());
 119                 wa = addWorkArea(*newBuffer);
 120         } else {
 121                 //Disconnect the old buffer...there's no new one.
 122                 disconnectBuffer();
 123         }
 124         connectBuffer(*newBuffer);
 125         connectBufferView(wa->bufferView());
 126         setCurrentWorkArea(wa);
 127
 128         busy(false);
 129 }
 130
 131
 132 Buffer * LyXView::loadLyXFile(FileName const & filename, bool tolastfiles)
 133 {
 134         busy(true);
 135
 136         Buffer * newBuffer = checkAndLoadLyXFile(filename);
 137
 138         if (!newBuffer) {
 139                 message(_("Document not loaded."));
 140                 updateStatusBar();
 141                 busy(false);
 142                 return 0;
 143         }
 144
 145         WorkArea * wa = workArea(*newBuffer);
 146         if (wa == 0)
 147                 wa = addWorkArea(*newBuffer);
 148
 149         // scroll to the position when the file was last closed
 150         if (lyxrc.use_lastfilepos) {
 151                 pit_type pit;
 152                 pos_type pos;
 153                 boost::tie(pit, pos) = LyX::ref().session().lastFilePos().load(filename);
 154                 // if successfully move to pit (returned par_id is not zero),
 155                 // update metrics and reset font
 156                 wa->bufferView().moveToPosition(pit, pos, 0, 0);
 157         }
 158
 159         if (tolastfiles)
 160                 LyX::ref().session().lastFiles().add(filename);
 161
 162         busy(false);
 163         return newBuffer;
 164 }
 165
 166
 167 void LyXView::connectBuffer(Buffer & buf)
 168 {
 169         if (errorsConnection_.connected())
 170                 disconnectBuffer();
 171
 172         bufferStructureChangedConnection_ =
 173                 buf.getMasterBuffer()->structureChanged.connect(
 174                         boost::bind(&LyXView::updateToc, this));
 175
 176         bufferEmbeddingChangedConnection_ =
 177                 buf.embeddingChanged.connect(
 178                         boost::bind(&LyXView::updateEmbeddedFiles, this));
 179
 180         errorsConnection_ =
 181                 buf.errors.connect(
 182                         boost::bind(&LyXView::showErrorList, this, _1));
 183
 184         messageConnection_ =
 185                 buf.message.connect(
 186                         boost::bind(&LyXView::message, this, _1));
 187
 188         busyConnection_ =
 189                 buf.busy.connect(
 190                         boost::bind(&LyXView::busy, this, _1));
 191
 192         titleConnection_ =
 193                 buf.updateTitles.connect(
 194                         boost::bind(&LyXView::updateWindowTitle, this));
 195
 196         timerConnection_ =
 197                 buf.resetAutosaveTimers.connect(
 198                         boost::bind(&LyXView::resetAutosaveTimer, this));
 199
 200         readonlyConnection_ =
 201                 buf.readonly.connect(
 202                         boost::bind(&LyXView::showReadonly, this, _1));
 203 }
 204
 205
 206 void LyXView::disconnectBuffer()
 207 {
 208         errorsConnection_.disconnect();
 209         bufferStructureChangedConnection_.disconnect();
 210         bufferEmbeddingChangedConnection_.disconnect();
 211         messageConnection_.disconnect();
 212         busyConnection_.disconnect();
 213         titleConnection_.disconnect();
 214         timerConnection_.disconnect();
 215         readonlyConnection_.disconnect();
 216         layout_changed_connection_.disconnect();
 217 }
 218
 219
 220 void LyXView::connectBufferView(BufferView & bv)
 221 {
 222         message_connection_ = bv.message.connect(
 223                         boost::bind(&LyXView::message, this, _1));
 224         show_dialog_connection_ = bv.showDialog.connect(
 225                         boost::bind(&LyXView::showDialog, this, _1));
 226         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 227                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 228         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 229                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 230         update_dialog_connection_ = bv.updateDialog.connect(
 231                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 232         layout_changed_connection_ = bv.layoutChanged.connect(
 233                         boost::bind(&Toolbars::setLayout, toolbars_, _1));
 234 }
 235
 236
 237 void LyXView::disconnectBufferView()
 238 {
 239         message_connection_.disconnect();
 240         show_dialog_connection_.disconnect();
 241         show_dialog_with_data_connection_.disconnect();
 242         show_inset_dialog_connection_.disconnect();
 243         update_dialog_connection_.disconnect();
 244 }
 245
 246
 247 void LyXView::showErrorList(string const & error_type)
 248 {
 249         ErrorList & el = buffer()->errorList(error_type);
 250         if (!el.empty()) {
 251                 getDialogs().show("errorlist", error_type);
 252         }
 253 }
 254
 255
 256 void LyXView::showDialog(string const & name)
 257 {
 258         getDialogs().show(name);
 259 }
 260
 261
 262 void LyXView::showDialogWithData(string const & name, string const & data)
 263 {
 264         getDialogs().show(name, data);
 265 }
 266
 267
 268 void LyXView::showInsetDialog(string const & name, string const & data,
 269                 Inset * inset)
 270 {
 271         getDialogs().show(name, data, inset);
 272 }
 273
 274
 275 void LyXView::updateDialog(string const & name, string const & data)
 276 {
 277         if (getDialogs().visible(name))
 278                 getDialogs().update(name, data);
 279 }
 280
 281
 282 void LyXView::showReadonly(bool)
 283 {
 284         updateWindowTitle();
 285         getDialogs().updateBufferDependent(false);
 286 }
 287
 288
 289 BufferView * LyXView::view()
 290 {
 291         WorkArea * wa = currentWorkArea();
 292         return wa? &wa->bufferView() : 0;
 293 }
 294
 295
 296 void LyXView::updateToc()
 297 {
 298         updateDialog("toc", "");
 299 }
 300
 301
 302 void LyXView::updateEmbeddedFiles()
 303 {
 304         updateDialog("embedding", "");
 305 }
 306
 307
 308 void LyXView::updateToolbars()
 309 {
 310         WorkArea * wa = currentWorkArea();
 311         if (wa) {
 312                 bool const math =
 313                         wa->bufferView().cursor().inMathed();
 314                 bool const table =
 315                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 316                 bool const review =
 317                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 318                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 319
 320                 toolbars_->update(math, table, review);
 321         } else
 322                 toolbars_->update(false, false, false);
 323
 324         // update redaonly status of open dialogs.
 325         getDialogs().checkStatus();
 326 }
 327
 328
 329 ToolbarInfo * LyXView::getToolbarInfo(string const & name)
 330 {
 331         return toolbars_->getToolbarInfo(name);
 332 }
 333
 334
 335 void LyXView::toggleToolbarState(string const & name, bool allowauto)
 336 {
 337         // it is possible to get current toolbar status like this,...
 338         // but I decide to obey the order of ToolbarBackend::flags
 339         // and disregard real toolbar status.
 340         // toolbars_->saveToolbarInfo();
 341         //
 342         // toggle state on/off/auto
 343         toolbars_->toggleToolbarState(name, allowauto);
 344         // update toolbar
 345         updateToolbars();
 346 }
 347
 348
 349 void LyXView::autoSave()
 350 {
 351         LYXERR(Debug::INFO) << "Running autoSave()" << endl;
 352
 353         if (buffer())
 354                 lyx::autoSave(view());
 355 }
 356
 357
 358 void LyXView::resetAutosaveTimer()
 359 {
 360         if (lyxrc.autosave)
 361                 autosave_timeout_->restart();
 362 }
 363
 364
 365 void LyXView::updateLayoutChoice()
 366 {
 367         // Don't show any layouts without a buffer
 368         if (!buffer()) {
 369                 toolbars_->clearLayoutList();
 370                 return;
 371         }
 372
 373         // Update the layout display
 374         if (toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 375                 current_layout = buffer()->params().getTextClass().defaultLayoutName();
 376         }
 377
 378         docstring const & layout = currentWorkArea()->bufferView().cursor().
 379                 innerParagraph().layout()->name();
 380
 381         if (layout != current_layout) {
 382                 toolbars_->setLayout(layout);
 383                 current_layout = layout;
 384         }
 385 }
 386
 387
 388 void LyXView::updateWindowTitle()
 389 {
 390         docstring maximize_title = from_ascii("LyX");
 391         docstring minimize_title = from_ascii("LyX");
 392
 393         Buffer * buf = buffer();
 394         if (buf) {
 395                 string const cur_title = buf->fileName();
 396                 if (!cur_title.empty()) {
 397                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 398                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 399                         if (!buf->isClean()) {
 400                                 maximize_title += _(" (changed)");
 401                                 minimize_title += char_type('*');
 402                         }
 403                         if (buf->isReadonly())
 404                                 maximize_title += _(" (read only)");
 405                 }
 406         }
 407
 408         setWindowTitle(maximize_title, minimize_title);
 409 }
 410
 411
 412 void LyXView::dispatch(FuncRequest const & cmd)
 413 {
 414         string const argument = to_utf8(cmd.argument());
 415         switch(cmd.action) {
 416                 case LFUN_BUFFER_SWITCH:
 417                         setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
 418                         break;
 419                 default:
 420                         theLyXFunc().setLyXView(this);
 421                         lyx::dispatch(cmd);
 422         }
 423 }
 424
 425
 426 Buffer const * LyXView::updateInset(Inset const * inset)
 427 {
 428         WorkArea * work_area = currentWorkArea();
 429         if (!work_area)
 430                 return 0;
 431
 432         if (inset) {
 433                 BOOST_ASSERT(work_area);
 434                 work_area->scheduleRedraw();
 435         }
 436         return &work_area->bufferView().buffer();
 437 }
 438
 439
 440 void LyXView::openLayoutList()
 441 {
 442         toolbars_->openLayoutList();
 443 }
 444
 445
 446 bool LyXView::isToolbarVisible(std::string const & id)
 447 {
 448         return toolbars_->visible(id);
 449 }
 450
 451 } // namespace frontend
 452 } // namespace lyx