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