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         work_area_ = work_area;
  97         work_area_ids_.clear();
  98         work_area_ids_.push_back(work_area_->id());
  99 }
 100
 101
 102 Buffer * LyXView::buffer() const
 103 {
 104         return work_area_->bufferView().buffer();
 105 }
 106
 107
 108 void LyXView::setBuffer(Buffer * b)
 109 {
 110         busy(true);
 111
 112         if (work_area_->bufferView().buffer())
 113                 disconnectBuffer();
 114
 115         if (!b)
 116                 getDialogs().hideBufferDependent();
 117
 118         work_area_->bufferView().setBuffer(b);
 119
 120         if (work_area_->bufferView().buffer()) {
 121                 // Buffer-dependent dialogs should be updated or
 122                 // hidden. This should go here because some dialogs (eg ToC)
 123                 // require bv_->text.
 124                 getDialogs().updateBufferDependent(true);
 125                 connectBuffer(*work_area_->bufferView().buffer());
 126         }
 127
 128         if (quitting)
 129                 return;
 130
 131         updateMenubar();
 132         updateToolbars();
 133         updateLayoutChoice();
 134         updateWindowTitle();
 135         updateStatusBar();
 136         updateTab();
 137         busy(false);
 138         work_area_->redraw();
 139 }
 140
 141
 142 bool LyXView::loadLyXFile(FileName const & filename, bool tolastfiles)
 143 {
 144         busy(true);
 145
 146         if (work_area_->bufferView().buffer())
 147                 disconnectBuffer();
 148
 149         bool loaded = work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 150
 151         updateMenubar();
 152         updateToolbars();
 153         updateLayoutChoice();
 154         updateWindowTitle();
 155         updateTab();
 156         if (loaded) {
 157                 connectBuffer(*work_area_->bufferView().buffer());
 158                 showErrorList("Parse");
 159         }
 160         updateStatusBar();
 161         busy(false);
 162         work_area_->redraw();
 163         return loaded;
 164 }
 165
 166
 167 void LyXView::connectBuffer(Buffer & buf)
 168 {
 169         if (errorsConnection_.connected())
 170                 disconnectBuffer();
 171
 172         bufferChangedConnection_ =
 173                 buf.changed.connect(
 174                         boost::bind(&WorkArea::redraw, work_area_));
 175
 176         errorsConnection_ =
 177                 buf.errors.connect(
 178                         boost::bind(&LyXView::showErrorList, this, _1));
 179
 180         messageConnection_ =
 181                 buf.message.connect(
 182                         boost::bind(&LyXView::message, this, _1));
 183
 184         busyConnection_ =
 185                 buf.busy.connect(
 186                         boost::bind(&LyXView::busy, this, _1));
 187
 188         titleConnection_ =
 189                 buf.updateTitles.connect(
 190                         boost::bind(&LyXView::updateWindowTitle, this));
 191
 192         timerConnection_ =
 193                 buf.resetAutosaveTimers.connect(
 194                         boost::bind(&LyXView::resetAutosaveTimer, this));
 195
 196         readonlyConnection_ =
 197                 buf.readonly.connect(
 198                         boost::bind(&LyXView::showReadonly, this, _1));
 199
 200         closingConnection_ =
 201                 buf.closing.connect(
 202                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 203 }
 204
 205
 206 void LyXView::disconnectBuffer()
 207 {
 208         errorsConnection_.disconnect();
 209         bufferChangedConnection_.disconnect();
 210         messageConnection_.disconnect();
 211         busyConnection_.disconnect();
 212         titleConnection_.disconnect();
 213         timerConnection_.disconnect();
 214         readonlyConnection_.disconnect();
 215         closingConnection_.disconnect();
 216         layout_changed_connection_.disconnect();
 217 }
 218
 219
 220 void LyXView::connectBufferView(BufferView & bv)
 221 {
 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         show_dialog_connection_.disconnect();
 238         show_dialog_with_data_connection_.disconnect();
 239         show_inset_dialog_connection_.disconnect();
 240         update_dialog_connection_.disconnect();
 241 }
 242
 243
 244 void LyXView::showErrorList(string const & error_type)
 245 {
 246         ErrorList & el = buffer()->errorList(error_type);
 247         if (!el.empty()) {
 248                 getDialogs().show("errorlist", error_type);
 249         }
 250 }
 251
 252
 253 void LyXView::showDialog(string const & name)
 254 {
 255         getDialogs().show(name);
 256 }
 257
 258
 259 void LyXView::showDialogWithData(string const & name, string const & data)
 260 {
 261         getDialogs().show(name, data);
 262 }
 263
 264
 265 void LyXView::showInsetDialog(string const & name, string const & data,
 266                 InsetBase * inset)
 267 {
 268         getDialogs().show(name, data, inset);
 269 }
 270
 271
 272 void LyXView::updateDialog(string const & name, string const & data)
 273 {
 274         if (getDialogs().visible(name))
 275                 getDialogs().update(name, data);
 276 }
 277
 278
 279 void LyXView::showReadonly(bool)
 280 {
 281         updateWindowTitle();
 282         getDialogs().updateBufferDependent(false);
 283 }
 284
 285
 286 BufferView * LyXView::view() const
 287 {
 288         return &work_area_->bufferView();
 289 }
 290
 291
 292 void LyXView::updateToolbars()
 293 {
 294         bool const math =
 295                 work_area_->bufferView().cursor().inMathed();
 296         bool const table =
 297                 lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 298         bool const review =
 299                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 300                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 301
 302         toolbars_->update(math, table, review);
 303         // update redaonly status of open dialogs. This could also be in
 304         // updateMenubar(), but since updateToolbars() and updateMenubar()
 305         // are always called together it is only here.
 306         getDialogs().checkStatus();
 307 }
 308
 309
 310 ToolbarBackend::Flags LyXView::getToolbarState(string const & name)
 311 {
 312         return toolbars_->getToolbarState(name);
 313 }
 314
 315
 316 void LyXView::toggleToolbarState(string const & name)
 317 {
 318         // it is possible to get current toolbar status like this,...
 319         // but I decide to obey the order of ToolbarBackend::flags
 320         // and disregard real toolbar status.
 321         // toolbars_->saveToolbarInfo();
 322         //
 323         // toggle state on/off/auto
 324         toolbars_->toggleToolbarState(name);
 325         // update toolbar
 326         updateToolbars();
 327 }
 328
 329
 330 void LyXView::updateMenubar()
 331 {
 332         menubar_->update();
 333 }
 334
 335
 336 void LyXView::autoSave()
 337 {
 338         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 339
 340         if (view()->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 (!view()->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().getLyXTextClass().defaultLayoutName();
 363         }
 364
 365         if (work_area_->bufferView().cursor().inMathed())
 366                 return;
 367
 368         string const & layout =
 369                 work_area_->bufferView().cursor().paragraph().layout()->name();
 370
 371         if (layout != current_layout) {
 372                 toolbars_->setLayout(layout);
 373                 current_layout = layout;
 374         }
 375 }
 376
 377
 378 void LyXView::updateWindowTitle()
 379 {
 380         docstring maximize_title = lyx::from_ascii("LyX");
 381         docstring minimize_title = lyx::from_ascii("LyX");
 382
 383         if (view()->buffer()) {
 384                 string const cur_title = buffer()->fileName();
 385                 if (!cur_title.empty()) {
 386                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 387                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 388                         if (!buffer()->isClean()) {
 389                                 maximize_title += _(" (changed)");
 390                                 minimize_title += lyx::char_type('*');
 391                         }
 392                         if (buffer()->isReadonly())
 393                                 maximize_title += _(" (read only)");
 394                 }
 395         }
 396
 397         setWindowTitle(maximize_title, minimize_title);
 398 }
 399
 400
 401 void LyXView::dispatch(FuncRequest const & cmd)
 402 {
 403         theLyXFunc().setLyXView(this);
 404         lyx::dispatch(cmd);
 405 }
 406
 407
 408 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 409 {
 410         Buffer const * buffer_ptr = 0;
 411         if (inset) {
 412                 buffer_ptr = work_area_->bufferView().buffer();
 413                 // No FitCursor:
 414                 work_area_->bufferView().update(Update::Force);
 415                 work_area_->redraw();
 416         }
 417         return buffer_ptr;
 418 }
 419
 420
 421 } // namespace lyx