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
  21 #include "buffer.h"
  22 #include "bufferparams.h"
  23 #include "BufferView.h"
  24 #include "bufferview_funcs.h"
  25 #include "cursor.h"
  26 #include "debug.h"
  27 #include "errorlist.h"
  28 #include "funcrequest.h"
  29 #include "gettext.h"
  30 #include "intl.h"
  31 #include "lyx_cb.h"
  32 #include "lyxfunc.h"
  33 #include "lyxrc.h"
  34 #include "lyxtext.h"
  35 #include "MenuBackend.h"
  36 #include "paragraph.h"
  37
  38 #include "controllers/ControlCommandBuffer.h"
  39
  40 #include "support/lstrings.h"
  41 #include "support/filetools.h" // OnlyFilename()
  42
  43 #include <boost/bind.hpp>
  44
  45
  46 namespace lyx {
  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 lyx::frontend::WorkArea;
  56
  57 using lyx::docstring;
  58 using lyx::support::bformat;
  59 using lyx::support::makeDisplayPath;
  60 using lyx::support::onlyFilename;
  61
  62 using std::endl;
  63 using std::string;
  64
  65 using lyx::frontend::ControlCommandBuffer;
  66
  67 string current_layout;
  68
  69
  70 LyXView::LyXView(int id)
  71         : work_area_(0),
  72           toolbars_(new Toolbars(*this)),
  73           autosave_timeout_(new Timeout(5000)),
  74           dialogs_(new Dialogs(*this)),
  75           controlcommand_(new ControlCommandBuffer(*this)), id_(id)
  76 {
  77         // Start autosave timer
  78         if (lyxrc.autosave) {
  79                 autosave_timeout_->timeout.connect(boost::bind(&LyXView::autoSave, this));
  80                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
  81                 autosave_timeout_->start();
  82         }
  83 }
  84
  85
  86 LyXView::~LyXView()
  87 {
  88 }
  89
  90
  91 // FIXME, there's only one WorkArea per LyXView possible for now.
  92 void LyXView::setWorkArea(WorkArea * work_area)
  93 {
  94         work_area_ = work_area;
  95         work_area_ids_.clear();
  96         work_area_ids_.push_back(work_area_->id());
  97 }
  98
  99
 100 Buffer * LyXView::buffer() const
 101 {
 102         return work_area_->bufferView().buffer();
 103 }
 104
 105
 106 void LyXView::setBuffer(Buffer * b)
 107 {
 108         busy(true);
 109
 110         if (work_area_->bufferView().buffer())
 111                 disconnectBuffer();
 112
 113         if (!b)
 114                 getDialogs().hideBufferDependent();
 115
 116         work_area_->bufferView().setBuffer(b);
 117
 118         if (work_area_->bufferView().buffer()) {
 119                 // Buffer-dependent dialogs should be updated or
 120                 // hidden. This should go here because some dialogs (eg ToC)
 121                 // require bv_->text.
 122                 getDialogs().updateBufferDependent(true);
 123                 connectBuffer(*work_area_->bufferView().buffer());
 124         }
 125
 126         if (quitting)
 127                 return;
 128
 129         updateMenubar();
 130         updateToolbars();
 131         updateLayoutChoice();
 132         updateWindowTitle();
 133         updateStatusBar();
 134         updateTab();
 135         busy(false);
 136         work_area_->redraw();
 137 }
 138
 139
 140 bool LyXView::loadLyXFile(string const & filename, bool tolastfiles)
 141 {
 142         busy(true);
 143
 144         if (work_area_->bufferView().buffer())
 145                 disconnectBuffer();
 146
 147         bool loaded = work_area_->bufferView().loadLyXFile(filename, tolastfiles);
 148
 149         updateMenubar();
 150         updateToolbars();
 151         updateLayoutChoice();
 152         updateWindowTitle();
 153         updateTab();
 154         if (loaded) {
 155                 connectBuffer(*work_area_->bufferView().buffer());
 156                 showErrorList("Parse");
 157         }
 158         updateStatusBar();
 159         busy(false);
 160         work_area_->redraw();
 161         return loaded;
 162 }
 163
 164
 165 void LyXView::connectBuffer(Buffer & buf)
 166 {
 167         if (errorsConnection_.connected())
 168                 disconnectBuffer();
 169
 170         bufferChangedConnection_ =
 171                 buf.changed.connect(
 172                         boost::bind(&WorkArea::redraw, work_area_));
 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         closingConnection_ =
 199                 buf.closing.connect(
 200                         boost::bind(&LyXView::setBuffer, this, (Buffer *)0));
 201 }
 202
 203
 204 void LyXView::disconnectBuffer()
 205 {
 206         errorsConnection_.disconnect();
 207         bufferChangedConnection_.disconnect();
 208         messageConnection_.disconnect();
 209         busyConnection_.disconnect();
 210         titleConnection_.disconnect();
 211         timerConnection_.disconnect();
 212         readonlyConnection_.disconnect();
 213         closingConnection_.disconnect();
 214         layout_changed_connection_.disconnect();
 215 }
 216
 217
 218 void LyXView::connectBufferView(BufferView & bv)
 219 {
 220         show_dialog_connection_ = bv.showDialog.connect(
 221                         boost::bind(&LyXView::showDialog, this, _1));
 222         show_dialog_with_data_connection_ = bv.showDialogWithData.connect(
 223                         boost::bind(&LyXView::showDialogWithData, this, _1, _2));
 224         show_inset_dialog_connection_ = bv.showInsetDialog.connect(
 225                         boost::bind(&LyXView::showInsetDialog, this, _1, _2, _3));
 226         update_dialog_connection_ = bv.updateDialog.connect(
 227                         boost::bind(&LyXView::updateDialog, this, _1, _2));
 228         layout_changed_connection_ = bv.layoutChanged.connect(
 229                         boost::bind(&Toolbars::setLayout, toolbars_.get(), _1));
 230 }
 231
 232
 233 void LyXView::disconnectBufferView()
 234 {
 235         show_dialog_connection_.disconnect();
 236         show_dialog_with_data_connection_.disconnect();
 237         show_inset_dialog_connection_.disconnect();
 238         update_dialog_connection_.disconnect();
 239 }
 240
 241
 242 void LyXView::showErrorList(string const & error_type)
 243 {
 244         ErrorList & el = buffer()->errorList(error_type);
 245         if (!el.empty()) {
 246                 getDialogs().show("errorlist", error_type);
 247         }
 248 }
 249
 250
 251 void LyXView::showDialog(string const & name)
 252 {
 253         getDialogs().show(name);
 254 }
 255
 256
 257 void LyXView::showDialogWithData(string const & name, string const & data)
 258 {
 259         getDialogs().show(name, data);
 260 }
 261
 262
 263 void LyXView::showInsetDialog(string const & name, string const & data,
 264                 InsetBase * inset)
 265 {
 266         getDialogs().show(name, data, inset);
 267 }
 268
 269
 270 void LyXView::updateDialog(string const & name, string const & data)
 271 {
 272         if (getDialogs().visible(name))
 273                 getDialogs().update(name, data);
 274 }
 275
 276
 277 void LyXView::showReadonly(bool)
 278 {
 279         updateWindowTitle();
 280         getDialogs().updateBufferDependent(false);
 281 }
 282
 283
 284 BufferView * LyXView::view() const
 285 {
 286         return &work_area_->bufferView();
 287 }
 288
 289
 290 void LyXView::updateToolbars()
 291 {
 292         bool const math =
 293                 work_area_->bufferView().cursor().inMathed();
 294         bool const table =
 295                 lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 296         bool const review =
 297                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 298                 lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 299
 300         toolbars_->update(math, table, review);
 301         // update redaonly status of open dialogs. This could also be in
 302         // updateMenubar(), but since updateToolbars() and updateMenubar()
 303         // are always called together it is only here.
 304         getDialogs().checkStatus();
 305 }
 306
 307
 308 ToolbarBackend::Flags LyXView::getToolbarState(string const & name)
 309 {
 310         return toolbars_->getToolbarState(name);
 311 }
 312
 313
 314 void LyXView::toggleToolbarState(string const & name)
 315 {
 316         // it is possible to get current toolbar status like this,...
 317         // but I decide to obey the order of ToolbarBackend::flags
 318         // and disregard real toolbar status.
 319         // toolbars_->saveToolbarInfo();
 320         //
 321         // toggle state on/off/auto
 322         toolbars_->toggleToolbarState(name);
 323         // update toolbar
 324         updateToolbars();
 325 }
 326
 327
 328 void LyXView::updateMenubar()
 329 {
 330         menubar_->update();
 331 }
 332
 333
 334 void LyXView::autoSave()
 335 {
 336         lyxerr[Debug::INFO] << "Running autoSave()" << endl;
 337
 338         if (view()->buffer())
 339                 lyx::autoSave(view());
 340 }
 341
 342
 343 void LyXView::resetAutosaveTimer()
 344 {
 345         if (lyxrc.autosave)
 346                 autosave_timeout_->restart();
 347 }
 348
 349
 350 void LyXView::updateLayoutChoice()
 351 {
 352         // Don't show any layouts without a buffer
 353         if (!view()->buffer()) {
 354                 toolbars_->clearLayoutList();
 355                 return;
 356         }
 357
 358         // Update the layout display
 359         if (toolbars_->updateLayoutList(buffer()->params().textclass)) {
 360                 current_layout = buffer()->params().getLyXTextClass().defaultLayoutName();
 361         }
 362
 363         if (work_area_->bufferView().cursor().inMathed())
 364                 return;
 365
 366         string const & layout =
 367                 work_area_->bufferView().cursor().paragraph().layout()->name();
 368
 369         if (layout != current_layout) {
 370                 toolbars_->setLayout(layout);
 371                 current_layout = layout;
 372         }
 373 }
 374
 375
 376 void LyXView::updateWindowTitle()
 377 {
 378         docstring maximize_title = lyx::from_ascii("LyX");
 379         docstring minimize_title = lyx::from_ascii("LyX");
 380
 381         if (view()->buffer()) {
 382                 string const cur_title = buffer()->fileName();
 383                 if (!cur_title.empty()) {
 384                         maximize_title += ": " + makeDisplayPath(cur_title, 30);
 385                         minimize_title = lyx::from_utf8(onlyFilename(cur_title));
 386                         if (!buffer()->isClean()) {
 387                                 maximize_title += _(" (changed)");
 388                                 minimize_title += lyx::char_type('*');
 389                         }
 390                         if (buffer()->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         if (cmd.action == LFUN_WINDOW_CLOSE) {
 402                 close();
 403                 closed(id_);
 404                 return;
 405         }
 406
 407         theLyXFunc().setLyXView(this);
 408         lyx::dispatch(cmd);
 409 }
 410
 411
 412 Buffer const * const LyXView::updateInset(InsetBase const * inset) const
 413 {
 414         Buffer const * buffer_ptr = 0;
 415         if (inset) {
 416                 buffer_ptr = work_area_->bufferView().buffer();
 417                 // No FitCursor:
 418                 work_area_->bufferView().update(Update::Force);
 419                 work_area_->redraw();
 420         }
 421         return buffer_ptr;
 422 }
 423
 424
 425 } // namespace lyx