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