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