src/frontends/LyXView.C

   1 /**
   2  * \file LyXView.C
   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 #include "Dialogs.h"
  16 #include "Timeout.h"
  17 #include "Toolbars.h"
  18 #include "Menubar.h"
  19 #include "WorkArea.h"
  20 #include "Gui.h"
  21
  22 #include "buffer.h"
  23 #include "bufferparams.h"
  24 #include "BufferView.h"
  25 #include "bufferview_funcs.h"
  26 #include "cursor.h"
  27 #include "debug.h"
  28 #include "errorlist.h"
  29 #include "funcrequest.h"
  30 #include "gettext.h"
  31 #include "intl.h"
  32 #include "lyx_cb.h"
  33 #include "lyxfunc.h"
  34 #include "lyxrc.h"
  35 #include "lyxtext.h"
  36 #include "MenuBackend.h"
  37 #include "paragraph.h"
  38
  39 #include "controllers/ControlCommandBuffer.h"
  40
  41 #include "support/lstrings.h"
  42 #include "support/filetools.h" // OnlyFilename()
  43
  44 #include <boost/bind.hpp>
  45
  46
  47 namespace lyx {
  48
  49 #ifdef HAVE_SYS_TIME_H
  50 # include <sys/time.h>
  51 #endif
  52 #ifdef HAVE_UNISTD_H
  53 # include <unistd.h>
  54 #endif
  55
  56 using frontend::WorkArea;
  57
  58 using support::bformat;
  59 using support::FileName;
  60 using support::makeDisplayPath;
  61 using support::onlyFilename;
  62
  63 using std::endl;
  64 using std::string;
  65
  66 using lyx::frontend::ControlCommandBuffer;
  67
  68 string current_layout;
  69
  70
  71 LyXView::LyXView(int id)
  72         : work_area_(0),
  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 }
  91
  92
  93 // FIXME, there's only one WorkArea per LyXView possible for now.
  94 void LyXView::setWorkArea(WorkArea * work_area)
  95 {
  96         BOOST_ASSERT(work_area);
  97         work_area_ = work_area;
  98         work_area_ids_.clear();
  99         work_area_ids_.push_back(work_area_->id());
 100 }
 101
 102
 103 // FIXME, there's only one WorkArea per LyXView possible for now.
 104 WorkArea const * LyXView::currentWorkArea() const
 105 {
 106         return work_area_;
 107 }
 108
 109
 110 // FIXME, there's only one WorkArea per LyXView possible for now.
 111 WorkArea * LyXView::currentWorkArea()
 112 {
 113         return work_area_;
 114 }
 115
 116
 117 Buffer * LyXView::buffer() const
 118 {
 119         BOOST_ASSERT(work_area_);
 120         return work_area_->bufferView().buffer();
 121 }
 122
 123
 124 void LyXView::setBuffer(Buffer * b)
 125 {
 126         busy(true);
 127
 128         BOOST_ASSERT(work_area_);
 129         if (work_area_->bufferView().buffer())
 130                 disconnectBuffer();
 131
 132         if (!b)
 133                 getDialogs().hideBufferDependent();
 134
 135         work_area_->bufferView().setBuffer(b);
 136
 137         if (work_area_->bufferView().buffer()) {
 138                 // Buffer-dependent dialogs should be updated or
 139                 // hidden. This should go here because some dialogs (eg ToC)
 140                 // require bv_->text.
 141                 getDialogs().updateBufferDependent(true);
 142                 connectBuffer(*work_area_->bufferView().buffer());
 143         }
 144
 145         if (quitting)
 146                 return;
 147
 148         updateMenubar();
 149         updateToolbars();
 150         updateLayoutChoice();
 151         updateWindowTitle();
 152         updateStatusBar();
 153         updateTab();
 154         busy(false);
 155         work_area_->redraw();
 156 }
 157
 158
 159 bool LyXView::loadLyXFile(FileName const & filename, bool tolastfiles)
 160 {
 161         busy(true);
 162
 163         BOOST_ASSERT(work_area_);
 164         if (work_area_->bufferView().buffer())
 165                 disconnectBuffer();
 166
 167         bool loaded = work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 168
 169         updateMenubar();
 170         updateToolbars();
 171         updateLayoutChoice();
 172         updateWindowTitle();
 173         updateTab();
 174         if (loaded) {
 175                 connectBuffer(*work_area_->bufferView().buffer());
 176                 showErrorList("Parse");
 177         }
 178         updateStatusBar();
 179         busy(false);
 180         work_area_->redraw();
 181         return loaded;
 182 }
 183
 184
 185 void LyXView::connectBuffer(Buffer & buf)
 186 {
 187         if (errorsConnection_.connected())
 188                 disconnectBuffer();
 189
 190         BOOST_ASSERT(work_area_);
 191         bufferChangedConnection_ =
 192                 buf.changed.connect(
 193                         boost::bind(&WorkArea::redraw, work_area_));
 194
 195         errorsConnection_ =
 196                 buf.errors.connect(
 197                         boost::bind(&LyXView::showErrorList, this, _1));
 198
 199         messageConnection_ =
 200                 buf.message.connect(
 201                         boost::bind(&LyXView::message, this, _1));
 202
 203         busyConnection_ =
 204                 buf.busy.connect(
 205                         boost::bind(&LyXView::busy, this, _1));
 206
 207         titleConnection_ =
 208                 buf.updateTitles.connect(
 209                         boost::bind(&LyXView::updateWindowTitle, this));
 210
 211         timerConnection_ =
 212                 buf.resetAutosaveTimers.connect(
 213                         boost::bind(&LyXView::resetAutosaveTimer, this));
 214
 215         readonlyConnection_ =
 216                 buf.readonly.connect(
 217                         boost::bind(&LyXView::showReadonly, this, _1));
 218
 219         closingConnection_ =
 220                 buf.closing.connect(
 221                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 222 }
 223
 224
 225 void LyXView::disconnectBuffer()
 226 {
 227         errorsConnection_.disconnect();
 228         bufferChangedConnection_.disconnect();
 229         messageConnection_.disconnect();
 230         busyConnection_.disconnect();
 231         titleConnection_.disconnect();
 232         timerConnection_.disconnect();
 233         readonlyConnection_.disconnect();
 234         closingConnection_.disconnect();
 235         layout_changed_connection_.disconnect();
 236 }
 237
 238
 239 void LyXView::connectBufferView(BufferView & bv)
 240 {
 241         show_dialog_connection_ = bv.showDialog.connect(
 242                         boost::bind(&LyXView::showDialog, this, _1));
 243         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 244                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 245         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 246                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 247         update_dialog_connection_ = bv.updateDialog.connect(
 248                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 249         layout_changed_connection_ = bv.layoutChanged.connect(
 250                         boost::bind(&Toolbars::setLayout, toolbars_.get(), _1));
 251 }
 252
 253
 254 void LyXView::disconnectBufferView()
 255 {
 256         show_dialog_connection_.disconnect();
 257         show_dialog_with_data_connection_.disconnect();
 258         show_inset_dialog_connection_.disconnect();
 259         update_dialog_connection_.disconnect();
 260 }
 261
 262
 263 void LyXView::showErrorList(string const & error_type)
 264 {
 265         ErrorList & el = buffer()->errorList(error_type);
 266         if (!el.empty()) {
 267                 getDialogs().show("errorlist", error_type);
 268         }
 269 }
 270
 271
 272 void LyXView::showDialog(string const & name)
 273 {
 274         getDialogs().show(name);
 275 }
 276
 277
 278 void LyXView::showDialogWithData(string const & name, string const & data)
 279 {
 280         getDialogs().show(name, data);
 281 }
 282
 283
 284 void LyXView::showInsetDialog(string const & name, string const & data,
 285                 InsetBase * inset)
 286 {
 287         getDialogs().show(name, data, inset);
 288 }
 289
 290
 291 void LyXView::updateDialog(string const & name, string const & data)
 292 {
 293         if (getDialogs().visible(name))
 294                 getDialogs().update(name, data);
 295 }
 296
 297
 298 void LyXView::showReadonly(bool)
 299 {
 300         updateWindowTitle();
 301         getDialogs().updateBufferDependent(false);
 302 }
 303
 304
 305 BufferView * LyXView::view() const
 306 {
 307         BOOST_ASSERT(work_area_);
 308         return &work_area_->bufferView();
 309 }
 310
 311
 312 void LyXView::updateToolbars()
 313 {
 314         BOOST_ASSERT(work_area_);
 315         bool const math =
 316                 work_area_->bufferView().cursor().inMathed();
 317         bool const table =
 318                 lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 319         bool const review =
 320                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 321                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 322
 323         toolbars_->update(math, table, review);
 324         // update redaonly status of open dialogs. This could also be in
 325         // updateMenubar(), but since updateToolbars() and updateMenubar()
 326         // are always called together it is only here.
 327         getDialogs().checkStatus();
 328 }
 329
 330
 331 ToolbarBackend::Flags LyXView::getToolbarState(string const & name)
 332 {
 333         return toolbars_->getToolbarState(name);
 334 }
 335
 336
 337 void LyXView::toggleToolbarState(string const & name)
 338 {
 339         // it is possible to get current toolbar status like this,...
 340         // but I decide to obey the order of ToolbarBackend::flags
 341         // and disregard real toolbar status.
 342         // toolbars_->saveToolbarInfo();
 343         //
 344         // toggle state on/off/auto
 345         toolbars_->toggleToolbarState(name);
 346         // update toolbar
 347         updateToolbars();
 348 }
 349
 350
 351 void LyXView::updateMenubar()
 352 {
 353         menubar_->update();
 354 }
 355
 356
 357 void LyXView::autoSave()
 358 {
 359         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 360
 361         if (view()->buffer())
 362                 lyx::autoSave(view());
 363 }
 364
 365
 366 void LyXView::resetAutosaveTimer()
 367 {
 368         if (lyxrc.autosave)
 369                 autosave_timeout_->restart();
 370 }
 371
 372
 373 void LyXView::updateLayoutChoice()
 374 {
 375         // Don't show any layouts without a buffer
 376         if (!view()->buffer()) {
 377                 toolbars_->clearLayoutList();
 378                 return;
 379         }
 380
 381         // Update the layout display
 382         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 383                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 384         }
 385
 386         BOOST_ASSERT(work_area_);
 387         if (work_area_->bufferView().cursor().inMathed())
 388                 return;
 389
 390         string const & layout =
 391                 work_area_->bufferView().cursor().paragraph().layout()->name();
 392
 393         if (layout != current_layout) {
 394                 toolbars_->setLayout(layout);
 395                 current_layout = layout;
 396         }
 397 }
 398
 399
 400 void LyXView::updateWindowTitle()
 401 {
 402         docstring maximize_title = lyx::from_ascii("LyX");
 403         docstring minimize_title = lyx::from_ascii("LyX");
 404
 405         if (view()->buffer()) {
 406                 string const cur_title = buffer()->fileName();
 407                 if (!cur_title.empty()) {
 408                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 409                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 410                         if (!buffer()->isClean()) {
 411                                 maximize_title += _(" (changed)");
 412                                 minimize_title += lyx::char_type('*');
 413                         }
 414                         if (buffer()->isReadonly())
 415                                 maximize_title += _(" (read only)");
 416                 }
 417         }
 418
 419         setWindowTitle(maximize_title, minimize_title);
 420 }
 421
 422
 423 void LyXView::dispatch(FuncRequest const & cmd)
 424 {
 425         theLyXFunc().setLyXView(this);
 426         lyx::dispatch(cmd);
 427 }
 428
 429
 430 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 431 {
 432         Buffer const * buffer_ptr = 0;
 433         if (inset) {
 434                 BOOST_ASSERT(work_area_);
 435                 work_area_->scheduleRedraw();
 436
 437                 buffer_ptr = work_area_->bufferView().buffer();
 438         }
 439         return buffer_ptr;
 440 }
 441
 442
 443 } // namespace lyx