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 "Menubar.h"
  19 #include "WorkArea.h"
  20 #include "Gui.h"
  21
  22 #include "Buffer.h"
  23 #include "buffer_funcs.h"
  24 #include "BufferList.h"
  25 #include "BufferParams.h"
  26 #include "BufferView.h"
  27 #include "bufferview_funcs.h"
  28 #include "Cursor.h"
  29 #include "debug.h"
  30 #include "ErrorList.h"
  31 #include "FuncRequest.h"
  32 #include "gettext.h"
  33 #include "Intl.h"
  34 #include "callback.h"
  35 #include "LyX.h"
  36 #include "LyXFunc.h"
  37 #include "LyXRC.h"
  38 #include "Text.h"
  39 #include "MenuBackend.h"
  40 #include "Paragraph.h"
  41
  42 #include "controllers/ControlCommandBuffer.h"
  43
  44 #include "support/lstrings.h"
  45 #include "support/filetools.h" // OnlyFilename()
  46 #include "support/Timeout.h"
  47
  48 #include <boost/bind.hpp>
  49
  50
  51 #ifdef HAVE_SYS_TIME_H
  52 # include <sys/time.h>
  53 #endif
  54 #ifdef HAVE_UNISTD_H
  55 # include <unistd.h>
  56 #endif
  57
  58 using std::endl;
  59 using std::string;
  60
  61 namespace lyx {
  62
  63 using support::bformat;
  64 using support::FileName;
  65 using support::makeDisplayPath;
  66 using support::onlyFilename;
  67
  68 namespace frontend {
  69
  70 docstring current_layout;
  71
  72 LyXView::LyXView(int id)
  73         : toolbars_(new Toolbars(*this)),
  74           autosave_timeout_(new Timeout(5000)),
  75           dialogs_(new Dialogs(*this)),
  76           controlcommand_(new ControlCommandBuffer(*this)), id_(id)
  77 {
  78         // Start autosave timer
  79         if (lyxrc.autosave) {
  80                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
  81                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
  82                 autosave_timeout_->start();
  83         }
  84 }
  85
  86
  87 LyXView::~LyXView()
  88 {
  89         disconnectBuffer();
  90         disconnectBufferView();
  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         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 = 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         errorsConnection_ =
 175                 buf.errors.connect(
 176                         boost::bind(&LyXView::showErrorList, this, _1));
 177
 178         messageConnection_ =
 179                 buf.message.connect(
 180                         boost::bind(&LyXView::message, this, _1));
 181
 182         busyConnection_ =
 183                 buf.busy.connect(
 184                         boost::bind(&LyXView::busy, this, _1));
 185
 186         titleConnection_ =
 187                 buf.updateTitles.connect(
 188                         boost::bind(&LyXView::updateWindowTitle, this));
 189
 190         timerConnection_ =
 191                 buf.resetAutosaveTimers.connect(
 192                         boost::bind(&LyXView::resetAutosaveTimer, this));
 193
 194         readonlyConnection_ =
 195                 buf.readonly.connect(
 196                         boost::bind(&LyXView::showReadonly, this, _1));
 197 }
 198
 199
 200 void LyXView::disconnectBuffer()
 201 {
 202         errorsConnection_.disconnect();
 203         bufferStructureChangedConnection_.disconnect();
 204         messageConnection_.disconnect();
 205         busyConnection_.disconnect();
 206         titleConnection_.disconnect();
 207         timerConnection_.disconnect();
 208         readonlyConnection_.disconnect();
 209         layout_changed_connection_.disconnect();
 210 }
 211
 212
 213 void LyXView::connectBufferView(BufferView & bv)
 214 {
 215         message_connection_ = bv.message.connect(
 216                         boost::bind(&LyXView::message, this, _1));
 217         show_dialog_connection_ = bv.showDialog.connect(
 218                         boost::bind(&LyXView::showDialog, this, _1));
 219         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 220                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 221         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 222                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 223         update_dialog_connection_ = bv.updateDialog.connect(
 224                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 225         layout_changed_connection_ = bv.layoutChanged.connect(
 226                         boost::bind(&Toolbars::setLayout, toolbars_.get(), _1));
 227 }
 228
 229
 230 void LyXView::disconnectBufferView()
 231 {
 232         message_connection_.disconnect();
 233         show_dialog_connection_.disconnect();
 234         show_dialog_with_data_connection_.disconnect();
 235         show_inset_dialog_connection_.disconnect();
 236         update_dialog_connection_.disconnect();
 237 }
 238
 239
 240 void LyXView::showErrorList(string const & error_type)
 241 {
 242         ErrorList & el = buffer()->errorList(error_type);
 243         if (!el.empty()) {
 244                 getDialogs().show("errorlist", error_type);
 245         }
 246 }
 247
 248
 249 void LyXView::showDialog(string const & name)
 250 {
 251         getDialogs().show(name);
 252 }
 253
 254
 255 void LyXView::showDialogWithData(string const & name, string const & data)
 256 {
 257         getDialogs().show(name, data);
 258 }
 259
 260
 261 void LyXView::showInsetDialog(string const & name, string const & data,
 262                 Inset * inset)
 263 {
 264         getDialogs().show(name, data, inset);
 265 }
 266
 267
 268 void LyXView::updateDialog(string const & name, string const & data)
 269 {
 270         if (getDialogs().visible(name))
 271                 getDialogs().update(name, data);
 272 }
 273
 274
 275 void LyXView::showReadonly(bool)
 276 {
 277         updateWindowTitle();
 278         getDialogs().updateBufferDependent(false);
 279 }
 280
 281
 282 BufferView * LyXView::view()
 283 {
 284         WorkArea * wa = currentWorkArea();
 285         return wa? &wa->bufferView() : 0;
 286 }
 287
 288
 289 void LyXView::updateToc()
 290 {
 291         updateDialog("toc", "");
 292 }
 293
 294
 295 void LyXView::updateToolbars()
 296 {
 297         WorkArea * wa = currentWorkArea();
 298         if (wa) {
 299                 bool const math =
 300                         wa->bufferView().cursor().inMathed();
 301                 bool const table =
 302                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 303                 bool const review =
 304                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 305                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 306
 307                 toolbars_->update(math, table, review);
 308         } else
 309                 toolbars_->update(false, false, false);
 310
 311         // update redaonly status of open dialogs.
 312         getDialogs().checkStatus();
 313 }
 314
 315
 316 ToolbarInfo * LyXView::getToolbarInfo(string const & name)
 317 {
 318         return toolbars_->getToolbarInfo(name);
 319 }
 320
 321
 322 void LyXView::toggleToolbarState(string const & name, bool allowauto)
 323 {
 324         // it is possible to get current toolbar status like this,...
 325         // but I decide to obey the order of ToolbarBackend::flags
 326         // and disregard real toolbar status.
 327         // toolbars_->saveToolbarInfo();
 328         //
 329         // toggle state on/off/auto
 330         toolbars_->toggleToolbarState(name, allowauto);
 331         // update toolbar
 332         updateToolbars();
 333 }
 334
 335
 336 void LyXView::autoSave()
 337 {
 338         LYXERR(Debug::INFO) << "Running autoSave()" << endl;
 339
 340         if (buffer())
 341                 lyx::autoSave(view());
 342 }
 343
 344
 345 void LyXView::resetAutosaveTimer()
 346 {
 347         if (lyxrc.autosave)
 348                 autosave_timeout_->restart();
 349 }
 350
 351
 352 void LyXView::updateLayoutChoice()
 353 {
 354         // Don't show any layouts without a buffer
 355         if (!buffer()) {
 356                 toolbars_->clearLayoutList();
 357                 return;
 358         }
 359
 360         // Update the layout display
 361         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 362                 current_layout = buffer()->params().getTextClass().defaultLayoutName();
 363         }
 364
 365         docstring const & layout = currentWorkArea()->bufferView().cursor().
 366                 innerParagraph().layout()->name();
 367
 368         if (layout != current_layout) {
 369                 toolbars_->setLayout(layout);
 370                 current_layout = layout;
 371         }
 372 }
 373
 374
 375 void LyXView::updateWindowTitle()
 376 {
 377         docstring maximize_title = lyx::from_ascii("LyX");
 378         docstring minimize_title = lyx::from_ascii("LyX");
 379
 380         Buffer * buf = buffer();
 381         if (buf) {
 382                 string const cur_title = buf->fileName();
 383                 if (!cur_title.empty()) {
 384                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 385                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 386                         if (!buf->isClean()) {
 387                                 maximize_title += _(" (changed)");
 388                                 minimize_title += lyx::char_type('*');
 389                         }
 390                         if (buf->isReadonly())
 391                                 maximize_title += _(" (read only)");
 392                 }
 393         }
 394
 395         setWindowTitle(maximize_title, minimize_title);
 396 }
 397
 398
 399 void LyXView::dispatch(FuncRequest const & cmd)
 400 {
 401         string const argument = to_utf8(cmd.argument());
 402         switch(cmd.action) {
 403                 case LFUN_BUFFER_SWITCH:
 404                         setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
 405                         break;
 406                 default:
 407                         theLyXFunc().setLyXView(this);
 408                         lyx::dispatch(cmd);
 409         }
 410 }
 411
 412
 413 Buffer const * const LyXView::updateInset(Inset const * inset)
 414 {
 415         WorkArea * work_area = currentWorkArea();
 416         if (!work_area)
 417                 return 0;
 418
 419         if (inset) {
 420                 BOOST_ASSERT(work_area);
 421                 work_area->scheduleRedraw();
 422         }
 423         return &work_area->bufferView().buffer();
 424 }
 425
 426
 427 void LyXView::openLayoutList()
 428 {
 429         toolbars_->openLayoutList();
 430 }
 431
 432
 433 bool LyXView::isToolbarVisible(std::string const & id)
 434 {
 435         return toolbars_->visible(id);
 436 }
 437
 438 } // namespace frontend
 439 } // namespace lyx