src/MenuBackend.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  *
  10  * ====================================================== */
  11
  12 #include <config.h>
  13
  14 #ifdef __GNUG__
  15 #pragma implementation
  16 #endif
  17
  18 #include <algorithm>
  19 #include "MenuBackend.h"
  20 #include "lyxlex.h"
  21 #include "LyXAction.h"
  22 #include "debug.h"
  23 #include "gettext.h"
  24 #include "lastfiles.h"
  25 #include "bufferlist.h"
  26 #include "converter.h"
  27 #include "exporter.h"
  28 #include "importer.h"
  29 #include "FloatList.h"
  30 #include "support/LAssert.h"
  31 #include "support/filetools.h"
  32 #include "support/lyxfunctional.h"
  33 #include "support/lstrings.h"
  34
  35 extern LyXAction lyxaction;
  36 extern LastFiles * lastfiles;
  37 extern BufferList bufferlist;
  38
  39 using std::endl;
  40 using std::vector;
  41 using std::pair;
  42 using std::find_if;
  43 using std::sort;
  44
  45 // This is the global menu definition
  46 MenuBackend menubackend;
  47
  48
  49 MenuItem::MenuItem(Kind kind, string const & label,
  50                    string const & command, bool optional)
  51         : kind_(kind), label_(label), optional_(optional)
  52 {
  53         switch (kind) {
  54         case Separator:
  55         case Documents:
  56         case Lastfiles:
  57         case Toc:
  58         case ViewFormats:
  59         case UpdateFormats:
  60         case ExportFormats:
  61         case ImportFormats:
  62         case FloatListInsert:
  63         case FloatInsert:
  64                 break;
  65         case Command:
  66                 action_ = lyxaction.LookupFunc(command);
  67
  68                 if (action_ == LFUN_UNKNOWN_ACTION) {
  69                         lyxerr << "MenuItem(): LyX command `"
  70                                << command << "' does not exist." << endl;
  71                 }
  72                 if (optional_)
  73                         lyxerr[Debug::GUI] << "Optional item "
  74                                            << command << endl;
  75                 break;
  76         case Submenu:
  77                 submenu_ = command;
  78                 break;
  79         }
  80 }
  81
  82 string const MenuItem::label() const
  83 {
  84         return token(label_, '|', 0);
  85 }
  86
  87 string const MenuItem::shortcut() const
  88 {
  89         return token(label_, '|', 1);
  90 }
  91
  92
  93 Menu & Menu::add(MenuItem const & i)
  94 {
  95         items_.push_back(i);
  96         return *this;
  97 }
  98
  99
 100 Menu & Menu::read(LyXLex & lex)
 101 {
 102         enum Menutags {
 103                 md_item = 1,
 104                 md_documents,
 105                 md_endmenu,
 106                 md_exportformats,
 107                 md_importformats,
 108                 md_lastfiles,
 109                 md_optitem,
 110                 md_separator,
 111                 md_submenu,
 112                 md_toc,
 113                 md_updateformats,
 114                 md_viewformats,
 115                 md_floatlistinsert,
 116                 md_floatinsert,
 117                 md_last
 118         };
 119
 120         struct keyword_item menutags[md_last - 1] = {
 121                 { "documents", md_documents },
 122                 { "end", md_endmenu },
 123                 { "exportformats", md_exportformats },
 124                 { "floatinsert", md_floatinsert },
 125                 { "floatlistinsert", md_floatlistinsert },
 126                 { "importformats", md_importformats },
 127                 { "item", md_item },
 128                 { "lastfiles", md_lastfiles },
 129                 { "optitem", md_optitem },
 130                 { "separator", md_separator },
 131                 { "submenu", md_submenu },
 132                 { "toc", md_toc },
 133                 { "updateformats", md_updateformats },
 134                 { "viewformats", md_viewformats }
 135         };
 136
 137         lex.pushTable(menutags, md_last - 1);
 138         if (lyxerr.debugging(Debug::PARSER))
 139                 lex.printTable(lyxerr);
 140
 141         bool quit = false;
 142         bool optional = false;
 143
 144         while (lex.isOK() && !quit) {
 145                 switch (lex.lex()) {
 146                 case md_optitem:
 147                         optional = true;
 148                         // fallback to md_item
 149                 case md_item: {
 150                         lex.next(true);
 151                         string const name = _(lex.getString());
 152                         lex.next(true);
 153                         string const command = lex.getString();
 154                         add(MenuItem(MenuItem::Command, name,
 155                                      command, optional));
 156                         optional = false;
 157                         break;
 158                 }
 159
 160                 case md_separator:
 161                         add(MenuItem(MenuItem::Separator));
 162                         break;
 163
 164                 case md_lastfiles:
 165                         add(MenuItem(MenuItem::Lastfiles));
 166                         break;
 167
 168                 case md_documents:
 169                         add(MenuItem(MenuItem::Documents));
 170                         break;
 171
 172                 case md_toc:
 173                         add(MenuItem(MenuItem::Toc));
 174                         break;
 175
 176                 case md_viewformats:
 177                         add(MenuItem(MenuItem::ViewFormats));
 178                         break;
 179
 180                 case md_updateformats:
 181                         add(MenuItem(MenuItem::UpdateFormats));
 182                         break;
 183
 184                 case md_exportformats:
 185                         add(MenuItem(MenuItem::ExportFormats));
 186                         break;
 187
 188                 case md_importformats:
 189                         add(MenuItem(MenuItem::ImportFormats));
 190                         break;
 191
 192                 case md_floatlistinsert:
 193                         add(MenuItem(MenuItem::FloatListInsert));
 194                         break;
 195
 196                 case md_floatinsert:
 197                         add(MenuItem(MenuItem::FloatInsert));
 198                         break;
 199
 200                 case md_submenu: {
 201                         lex.next(true);
 202                         string const mlabel = _(lex.getString());
 203                         lex.next(true);
 204                         string const mname = lex.getString();
 205                         add(MenuItem(MenuItem::Submenu, mlabel, mname));
 206                         break;
 207                 }
 208
 209                 case md_endmenu:
 210                         quit = true;
 211                         break;
 212
 213                 default:
 214                         lex.printError("menubar::read: "
 215                                        "Unknown menu tag: `$$Token'");
 216                         break;
 217                 }
 218         }
 219         lex.popTable();
 220         return *this;
 221 }
 222
 223
 224 void Menu::checkShortcuts() const
 225 {
 226         // This is a quadratic algorithm, but we do not care because
 227         // it is used for debugging only.
 228         for (const_iterator it1 = begin(); it1 != end(); ++it1) {
 229                 string shortcut = it1->shortcut();
 230                 if (shortcut.empty())
 231                         continue;
 232                 if (!contains(it1->label(), shortcut))
 233                         lyxerr << "Menu warning: menu entry \""
 234                                << it1->label()
 235                                << "\" does not contain shortcut `"
 236                                << shortcut << '\'' << endl;
 237                 for (const_iterator it2 = begin(); it2 != it1 ; ++it2) {
 238                         if (!compare_no_case(it2->shortcut(), shortcut)) {
 239                                 lyxerr << "Menu warning: menu entries "
 240                                        << '"' << it1->fulllabel()
 241                                        << "\" and \"" << it2->fulllabel()
 242                                        << "\" share the same shortcut."
 243                                        << endl;
 244                         }
 245                 }
 246         }
 247 }
 248
 249 namespace {
 250
 251 class compare_format {
 252 public:
 253         bool operator()(Format const * p1, Format const * p2) {
 254                 return *p1 < *p2;
 255         }
 256 };
 257
 258 } // namespace anon
 259
 260
 261 void Menu::expand(Menu & tomenu, Buffer * buf) const
 262 {
 263         for (const_iterator cit = begin();
 264              cit != end() ; ++cit) {
 265                 switch (cit->kind()) {
 266                 case MenuItem::Lastfiles: {
 267                         int ii = 1;
 268                         LastFiles::const_iterator lfit = lastfiles->begin();
 269                         LastFiles::const_iterator end = lastfiles->end();
 270
 271                         for (; lfit != end && ii < 10; ++lfit, ++ii) {
 272                                 string const label = tostr(ii) + ". "
 273                                         + MakeDisplayPath((*lfit), 30)
 274                                         + '|' + tostr(ii);
 275                                 int const action = lyxaction.
 276                                         getPseudoAction(LFUN_FILE_OPEN,
 277                                                         (*lfit));
 278                                 tomenu.add(MenuItem(MenuItem::Command,
 279                                                     label, action));
 280                         }
 281                 }
 282                 break;
 283
 284                 case MenuItem::Documents: {
 285                         typedef vector<string> Strings;
 286
 287                         Strings const names = bufferlist.getFileNames();
 288
 289                         if (names.empty()) {
 290                                 tomenu.add(MenuItem(MenuItem::Command,
 291                                                     _("No Documents Open!"),
 292                                                     LFUN_NOACTION));
 293                                 break;
 294                         }
 295
 296                         Strings::const_iterator docit = names.begin();
 297                         Strings::const_iterator end = names.end();
 298                         for (; docit != end ; ++docit) {
 299                                 int const action = lyxaction
 300                                         .getPseudoAction(LFUN_SWITCHBUFFER,
 301                                                          *docit);
 302                                 string const label =
 303                                         MakeDisplayPath(*docit, 30);
 304                                 tomenu.add(MenuItem(MenuItem::Command,
 305                                                     label, action));
 306                         }
 307                 }
 308                 break;
 309
 310                 case MenuItem::ImportFormats:
 311                 case MenuItem::ViewFormats:
 312                 case MenuItem::UpdateFormats:
 313                 case MenuItem::ExportFormats: {
 314                         typedef vector<Format const *> Formats;
 315
 316                         Formats formats;
 317
 318                         kb_action action;
 319                         switch (cit->kind()) {
 320                         case MenuItem::ImportFormats:
 321                                 formats = Importer::GetImportableFormats();
 322                                 action = LFUN_IMPORT;
 323                                 break;
 324                         case MenuItem::ViewFormats:
 325                                 formats = Exporter::GetExportableFormats(buf, true);
 326                                 action = LFUN_PREVIEW;
 327                                 break;
 328                         case MenuItem::UpdateFormats:
 329                                 formats = Exporter::GetExportableFormats(buf, true);
 330                                 action = LFUN_UPDATE;
 331                                 break;
 332                         default:
 333                                 formats = Exporter::GetExportableFormats(buf, false);
 334                                 action = LFUN_EXPORT;
 335                         }
 336                         sort(formats.begin(), formats.end(), compare_format());
 337
 338                         Formats::const_iterator fit = formats.begin();
 339                         Formats::const_iterator end = formats.end();
 340
 341                         for (; fit != end ; ++fit) {
 342                                 if ((*fit)->dummy())
 343                                         continue;
 344                                 string label = (*fit)->prettyname();
 345                                 if (cit->kind() == MenuItem::ImportFormats)
 346                                         if ((*fit)->name() == "text")
 347                                                 label = _("Ascii text as lines");
 348                                         else if ((*fit)->name() == "textparagraph")
 349                                                 label = _("Ascii text as paragraphs");
 350                                 if (!(*fit)->shortcut().empty())
 351                                         label += "|" + (*fit)->shortcut();
 352                                 int const action2 = lyxaction.
 353                                         getPseudoAction(action,
 354                                                         (*fit)->name());
 355                                 tomenu.add(MenuItem(MenuItem::Command,
 356                                                     label, action2));
 357                         }
 358                 }
 359                 break;
 360
 361                 case MenuItem::FloatListInsert:
 362                 {
 363                         FloatList::const_iterator cit = floatList.begin();
 364                         FloatList::const_iterator end = floatList.end();
 365                         for (; cit != end; ++cit) {
 366                                 int const action =  lyxaction
 367                                         .getPseudoAction(LFUN_FLOAT_LIST,
 368                                                          cit->second.type());
 369                                 string label = _("List of ");
 370                                 label += cit->second.name();
 371                                 tomenu.add(MenuItem(MenuItem::Command,
 372                                                     label, action));
 373                         }
 374                 }
 375                 break;
 376
 377                 case MenuItem::FloatInsert:
 378                 {
 379                         FloatList::const_iterator cit = floatList.begin();
 380                         FloatList::const_iterator end = floatList.end();
 381                         for (; cit != end; ++cit) {
 382                                 // normal float
 383                                 int const action = lyxaction
 384                                         .getPseudoAction(LFUN_INSET_FLOAT,
 385                                                          cit->second.type());
 386                                 string const label = cit->second.name();
 387                                 tomenu.add(MenuItem(MenuItem::Command,
 388                                                     label, action));
 389
 390                                 // and the wide version
 391                                 int const action2 = lyxaction
 392                                         .getPseudoAction(LFUN_INSET_WIDE_FLOAT,
 393                                                          cit->second.type());
 394                                 string const label2 = _("Wide ") + label;
 395                                 tomenu.add(MenuItem(MenuItem::Command,
 396                                                     label2, action2));
 397                         }
 398                 }
 399                 break;
 400
 401                 default:
 402                         tomenu.add(*cit);
 403                 }
 404         }
 405
 406         // Check whether the shortcuts are unique
 407         if (lyxerr.debugging(Debug::GUI))
 408                 checkShortcuts();
 409 }
 410
 411
 412 bool Menu::hasSubmenu(string const & name) const
 413 {
 414         return find_if(begin(), end(),
 415                        lyx::compare_memfun(&MenuItem::submenu, name)) != end();
 416 }
 417
 418
 419 void MenuBackend::read(LyXLex & lex)
 420 {
 421         enum Menutags {
 422                 md_menu = 1,
 423                 md_menubar,
 424                 md_endmenuset,
 425                 md_last
 426         };
 427
 428         struct keyword_item menutags[md_last - 1] = {
 429                 { "end", md_endmenuset },
 430                 { "menu", md_menu },
 431                 { "menubar", md_menubar }
 432         };
 433
 434         //consistency check
 435         if (compare_no_case(lex.getString(), "menuset")) {
 436                 lyxerr << "Menubackend::read: ERROR wrong token:`"
 437                        << lex.getString() << '\'' << endl;
 438         }
 439
 440         lex.pushTable(menutags, md_last - 1);
 441         if (lyxerr.debugging(Debug::PARSER))
 442                 lex.printTable(lyxerr);
 443
 444         bool quit = false;
 445         bool menubar = false;
 446
 447         while (lex.isOK() && !quit) {
 448                 switch (lex.lex()) {
 449                 case md_menubar:
 450                         menubar = true;
 451                         // fallback to md_menu
 452                 case md_menu: {
 453                         lex.next(true);
 454                         string const name = lex.getString();
 455                         if (hasMenu(name)) {
 456                                 if (getMenu(name).menubar() == menubar) {
 457                                         getMenu(name).read(lex);
 458                                 } else {
 459                                         lex.printError("Cannot append to menu `$$Token' unless it is of the same type");
 460                                         return;
 461                                 }
 462                         } else {
 463                                 Menu menu(name, menubar);
 464                                 menu.read(lex);
 465                                 add(menu);
 466                         }
 467                         menubar = false;
 468                         break;
 469                 }
 470                 case md_endmenuset:
 471                         quit = true;
 472                         break;
 473                 default:
 474                         lex.printError("menubackend::read: "
 475                                        "Unknown menu tag: `$$Token'");
 476                         break;
 477                 }
 478         }
 479         lex.popTable();
 480 }
 481
 482
 483 void MenuBackend::defaults()
 484 {
 485         menulist_.clear();
 486
 487         lyxerr[Debug::GUI] << "MenuBackend::defaults: using default values"
 488                            << endl;
 489
 490         Menu file("file");
 491         file
 492                 .add(MenuItem(MenuItem::Command, _("New...|N"), "buffer-new"))
 493                 .add(MenuItem(MenuItem::Command, _("Open...|O"), "buffer-open"))
 494                 .add(MenuItem(MenuItem::Submenu, _("Import|I"), "import"))
 495                 .add(MenuItem(MenuItem::Command, _("Quit|Q"), "lyx-quit"))
 496                 .add(MenuItem(MenuItem::Separator))
 497                 .add(MenuItem(MenuItem::Lastfiles));
 498         add(file);
 499
 500         Menu import("import");
 501         import
 502                 .add(MenuItem(MenuItem::Command,
 503                               _("LaTeX...|L"), "buffer-import latex"))
 504                 .add(MenuItem(MenuItem::Command,
 505                               _("LinuxDoc...|L"), "buffer-import linuxdoc"));
 506         add(import);
 507
 508         Menu edit("edit");
 509         edit
 510                 .add(MenuItem(MenuItem::Command, _("Cut"), "cut"))
 511                 .add(MenuItem(MenuItem::Command, _("Copy"), "copy"))
 512                 .add(MenuItem(MenuItem::Command, _("Paste"), "paste"))
 513                 .add(MenuItem(MenuItem::Command, _("Emphasize"), "font-emph"));
 514         add(edit);
 515
 516         Menu documents("documents");
 517         documents.add(MenuItem(MenuItem::Documents));
 518         add(documents);
 519
 520         Menu main("main", true);
 521         main
 522                 .add(MenuItem(MenuItem::Submenu, _("File|F"), "file"))
 523                 .add(MenuItem(MenuItem::Submenu, _("Edit|E"), "edit"))
 524                 .add(MenuItem(MenuItem::Submenu,
 525                               _("Documents|D"), "documents"));
 526         add(main);
 527
 528         Menu main_nobuffer("main_nobuffer", true);
 529         main_nobuffer.add(MenuItem(MenuItem::Submenu, _("File|F"), "file"));
 530         add(main_nobuffer);
 531
 532         if (lyxerr.debugging(Debug::GUI)) {
 533                 for (const_iterator cit = begin();
 534                     cit != end() ; ++cit)
 535                         lyxerr << "Menu name: " << cit->name()
 536                                << ", Menubar: " << cit->menubar()
 537                                << endl;
 538         }
 539 }
 540
 541
 542 void MenuBackend::add(Menu const & menu)
 543 {
 544         menulist_.push_back(menu);
 545 }
 546
 547
 548 bool MenuBackend::hasMenu(string const & name) const
 549 {
 550         return find_if(begin(), end(),
 551                        lyx::compare_memfun(&Menu::name, name)) != end();
 552 }
 553
 554
 555 Menu const & MenuBackend::getMenu(string const & name) const
 556 {
 557         const_iterator cit = find_if(begin(), end(),
 558                                      lyx::compare_memfun(&Menu::name, name));
 559         lyx::Assert(cit != end());
 560         return (*cit);
 561 }
 562
 563
 564 Menu & MenuBackend::getMenu(string const & name)
 565 {
 566         MenuList::iterator it =
 567                 find_if(menulist_.begin(), menulist_.end(),
 568                         lyx::compare_memfun(&Menu::name, name));
 569         lyx::Assert(it != menulist_.end());
 570         return (*it);
 571 }