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