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                 BufferView & bv = wa->bufferView();
 155                 if (bv.moveToPosition(pit, pos, 0, 0).get<1>()) {
 156                         if (bv.fitCursor())
 157                                 bv.updateMetrics(false);
 158                         newBuffer->text().setCurrentFont(bv.cursor());
 159                 }
 160         }
 161
 162         if (tolastfiles)
 163                 LyX::ref().session().lastFiles().add(filename);
 164
 165         busy(false);
 166         return newBuffer;
 167 }
 168
 169
 170 void LyXView::connectBuffer(Buffer & buf)
 171 {
 172         if (errorsConnection_.connected())
 173                 disconnectBuffer();
 174
 175         bufferStructureChangedConnection_ =
 176                 buf.getMasterBuffer()->structureChanged.connect(
 177                         boost::bind(&LyXView::updateToc, this));
 178
 179         errorsConnection_ =
 180                 buf.errors.connect(
 181                         boost::bind(&LyXView::showErrorList, this, _1));
 182
 183         messageConnection_ =
 184                 buf.message.connect(
 185                         boost::bind(&LyXView::message, this, _1));
 186
 187         busyConnection_ =
 188                 buf.busy.connect(
 189                         boost::bind(&LyXView::busy, this, _1));
 190
 191         titleConnection_ =
 192                 buf.updateTitles.connect(
 193                         boost::bind(&LyXView::updateWindowTitle, this));
 194
 195         timerConnection_ =
 196                 buf.resetAutosaveTimers.connect(
 197                         boost::bind(&LyXView::resetAutosaveTimer, this));
 198
 199         readonlyConnection_ =
 200                 buf.readonly.connect(
 201                         boost::bind(&LyXView::showReadonly, this, _1));
 202 }
 203
 204
 205 void LyXView::disconnectBuffer()
 206 {
 207         errorsConnection_.disconnect();
 208         bufferStructureChangedConnection_.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::updateToolbars()
 301 {
 302         WorkArea * wa = currentWorkArea();
 303         if (wa) {
 304                 bool const math =
 305                         wa->bufferView().cursor().inMathed();
 306                 bool const table =
 307                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 308                 bool const review =
 309                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 310                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 311
 312                 toolbars_->update(math, table, review);
 313         } else
 314                 toolbars_->update(false, false, false);
 315
 316         // update redaonly status of open dialogs. This could also be in
 317         // updateMenubar(), but since updateToolbars() and updateMenubar()
 318         // are always called together it is only here.
 319         getDialogs().checkStatus();
 320 }
 321
 322
 323 ToolbarInfo * LyXView::getToolbarInfo(string const & name)
 324 {
 325         return toolbars_->getToolbarInfo(name);
 326 }
 327
 328
 329 void LyXView::toggleToolbarState(string const & name, bool allowauto)
 330 {
 331         // it is possible to get current toolbar status like this,...
 332         // but I decide to obey the order of ToolbarBackend::flags
 333         // and disregard real toolbar status.
 334         // toolbars_->saveToolbarInfo();
 335         //
 336         // toggle state on/off/auto
 337         toolbars_->toggleToolbarState(name, allowauto);
 338         // update toolbar
 339         updateToolbars();
 340 }
 341
 342
 343 void LyXView::updateMenubar()
 344 {
 345         menubar_->update();
 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().textclass)) {
 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 = lyx::from_ascii("LyX");
 391         docstring minimize_title = lyx::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 += lyx::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 * 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 } // namespace frontend
 440 } // namespace lyx