src/insets/InsetInfo.cpp

   1 /**
   2  * \file InsetInfo.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Bo Peng
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10 #include <config.h>
  11
  12 #include "InsetInfo.h"
  13
  14 #include "Buffer.h"
  15 #include "BufferParams.h"
  16 #include "BufferView.h"
  17 #include "CutAndPaste.h"
  18 #include "FuncRequest.h"
  19 #include "FuncStatus.h"
  20 #include "InsetGraphics.h"
  21 #include "InsetSpecialChar.h"
  22 #include "KeyMap.h"
  23 #include "LaTeXFeatures.h"
  24 #include "LayoutFile.h"
  25 #include "LyXAction.h"
  26 #include "LyXRC.h"
  27 #include "LyXVC.h"
  28 #include "Lexer.h"
  29 #include "ParagraphParameters.h"
  30
  31 #include "frontends/Application.h"
  32
  33 #include "support/debug.h"
  34 #include "support/docstream.h"
  35 #include "support/docstring_list.h"
  36 #include "support/ExceptionMessage.h"
  37 #include "support/FileName.h"
  38 #include "support/filetools.h"
  39 #include "support/gettext.h"
  40 #include "support/lstrings.h"
  41
  42 #include <sstream>
  43
  44 using namespace std;
  45 using namespace lyx::support;
  46
  47 namespace lyx {
  48
  49 namespace {
  50
  51 typedef Translator<InsetInfo::info_type, string> NameTranslator;
  52
  53 NameTranslator const initTranslator()
  54 {
  55         NameTranslator translator(InsetInfo::UNKNOWN_INFO, "unknown");
  56
  57         translator.addPair(InsetInfo::SHORTCUTS_INFO, "shortcuts");
  58         translator.addPair(InsetInfo::SHORTCUT_INFO, "shortcut");
  59         translator.addPair(InsetInfo::LYXRC_INFO, "lyxrc");
  60         translator.addPair(InsetInfo::PACKAGE_INFO, "package");
  61         translator.addPair(InsetInfo::TEXTCLASS_INFO, "textclass");
  62         translator.addPair(InsetInfo::MENU_INFO, "menu");
  63         translator.addPair(InsetInfo::ICON_INFO, "icon");
  64         translator.addPair(InsetInfo::BUFFER_INFO, "buffer");
  65         translator.addPair(InsetInfo::LYX_INFO, "lyxinfo");
  66
  67         return translator;
  68 }
  69
  70 /// The translator between the information type enum and corresponding string.
  71 NameTranslator const & nameTranslator()
  72 {
  73         static NameTranslator const translator = initTranslator();
  74         return translator;
  75 }
  76
  77 } // namespace anon
  78
  79 /////////////////////////////////////////////////////////////////////////
  80 //
  81 // InsetInfo
  82 //
  83 /////////////////////////////////////////////////////////////////////////
  84
  85
  86
  87 InsetInfo::InsetInfo(Buffer * buf, string const & name)
  88         : InsetCollapsable(buf), type_(UNKNOWN_INFO), name_()
  89 {
  90         setAutoBreakRows(true);
  91         setInfo(name);
  92         status_ = Collapsed;
  93 }
  94
  95
  96 Inset * InsetInfo::editXY(Cursor & cur, int x, int y)
  97 {
  98         // do not allow the cursor to be set in this Inset
  99         return Inset::editXY(cur, x, y);
 100 }
 101
 102
 103 string InsetInfo::infoType() const
 104 {
 105         return nameTranslator().find(type_);
 106 }
 107
 108
 109 docstring InsetInfo::name() const
 110 {
 111         return from_ascii("Info:" + infoType());
 112 }
 113
 114
 115 docstring InsetInfo::toolTip(BufferView const &, int, int) const
 116 {
 117         return bformat(_("Information regarding %1$s '%2$s'"),
 118                         _(infoType()), from_utf8(name_));
 119 }
 120
 121
 122 void InsetInfo::read(Lexer & lex)
 123 {
 124         string token;
 125         while (lex.isOK()) {
 126                 lex.next();
 127                 token = lex.getString();
 128                 if (token == "type") {
 129                         lex.next();
 130                         token = lex.getString();
 131                         type_ = nameTranslator().find(token);
 132                 } else if (token == "arg") {
 133                         lex.next(true);
 134                         name_ = lex.getString();
 135                 } else if (token == "\\end_inset")
 136                         break;
 137         }
 138         if (token != "\\end_inset") {
 139                 lex.printError("Missing \\end_inset at this point");
 140                 throw ExceptionMessage(WarningException,
 141                         _("Missing \\end_inset at this point."),
 142                         from_utf8(token));
 143         }
 144         updateInfo();
 145 }
 146
 147
 148 void InsetInfo::write(ostream & os) const
 149 {
 150         os << "Info\ntype  \"" << infoType()
 151            << "\"\narg   " << Lexer::quoteString(name_);
 152 }
 153
 154
 155 bool InsetInfo::validateModifyArgument(docstring const & arg) const
 156 {
 157         string type;
 158         string const name = trim(split(to_utf8(arg), type, ' '));
 159
 160         switch (nameTranslator().find(type)) {
 161         case UNKNOWN_INFO:
 162                 return false;
 163
 164         case SHORTCUT_INFO:
 165         case SHORTCUTS_INFO:
 166         case MENU_INFO:
 167         case ICON_INFO: {
 168                 FuncRequest func = lyxaction.lookupFunc(name);
 169                 return func.action() != LFUN_UNKNOWN_ACTION;
 170         }
 171
 172         case LYXRC_INFO: {
 173                 ostringstream oss;
 174                 lyxrc.write(oss, true, name);
 175                 return !oss.str().empty();
 176         }
 177
 178         case PACKAGE_INFO:
 179         case TEXTCLASS_INFO:
 180                 return true;
 181
 182         case BUFFER_INFO:
 183                 if (name == "name" || name == "path" || name == "class")
 184                         return true;
 185                 if (name == "vcs-revision" || name == "vcs-tree-revision" ||
 186                        name == "vcs-author" || name == "vcs-date" || name == "vcs-time")
 187                         return buffer().lyxvc().inUse();
 188                 return false;
 189
 190         case LYX_INFO:
 191                 return name == "version";
 192         }
 193
 194         return false;
 195 }
 196
 197
 198 bool InsetInfo::showInsetDialog(BufferView * bv) const
 199 {
 200         bv->showDialog("info");
 201         return true;
 202 }
 203
 204
 205 bool InsetInfo::getStatus(Cursor & cur, FuncRequest const & cmd,
 206                 FuncStatus & flag) const
 207 {
 208         switch (cmd.action()) {
 209         case LFUN_INSET_SETTINGS:
 210                 return InsetCollapsable::getStatus(cur, cmd, flag);
 211
 212         case LFUN_INSET_DIALOG_UPDATE:
 213         case LFUN_INSET_COPY_AS:
 214                 flag.setEnabled(true);
 215                 return true;
 216
 217         case LFUN_INSET_MODIFY:
 218                 if (validateModifyArgument(cmd.argument())) {
 219                         flag.setEnabled(true);
 220                         return true;
 221                 }
 222                 //fall through
 223
 224         default:
 225                 return false;
 226         }
 227 }
 228
 229
 230 void InsetInfo::doDispatch(Cursor & cur, FuncRequest & cmd)
 231 {
 232         switch (cmd.action()) {
 233         case LFUN_INSET_MODIFY:
 234                 cur.recordUndo();
 235                 setInfo(to_utf8(cmd.argument()));
 236                 break;
 237
 238         case LFUN_INSET_COPY_AS: {
 239                 cap::clearSelection();
 240                 Cursor copy(cur);
 241                 copy.pushBackward(*this);
 242                 copy.pit() = 0;
 243                 copy.pos() = 0;
 244                 copy.resetAnchor();
 245                 copy.pit() = copy.lastpit();
 246                 copy.pos() = copy.lastpos();
 247                 copy.setSelection();
 248                 cap::copySelection(copy);
 249                 break;
 250         }
 251
 252         default:
 253                 InsetCollapsable::doDispatch(cur, cmd);
 254                 break;
 255         }
 256 }
 257
 258
 259 void InsetInfo::setInfo(string const & name)
 260 {
 261         if (name.empty())
 262                 return;
 263         // info_type name
 264         string type;
 265         name_ = trim(split(name, type, ' '));
 266         type_ = nameTranslator().find(type);
 267         updateInfo();
 268 }
 269
 270
 271 void InsetInfo::error(string const & err)
 272 {
 273         setText(bformat(_(err), from_utf8(name_)),
 274                 Font(inherit_font, buffer().params().language), false);
 275 }
 276
 277
 278 void InsetInfo::setText(docstring const & str)
 279 {
 280         setText(str, Font(inherit_font, buffer().params().language), false);
 281 }
 282
 283
 284 void InsetInfo::updateInfo()
 285 {
 286         BufferParams const & bp = buffer().params();
 287
 288         switch (type_) {
 289         case UNKNOWN_INFO:
 290                 error("Unknown Info: %1$s");
 291                 break;
 292         case SHORTCUT_INFO:
 293         case SHORTCUTS_INFO: {
 294                 FuncRequest const func = lyxaction.lookupFunc(name_);
 295                 if (func.action() == LFUN_UNKNOWN_ACTION) {
 296                         error("Unknown action %1$s");
 297                         break;
 298                 }
 299                 KeyMap::Bindings bindings = theTopLevelKeymap().findBindings(func);
 300                 if (bindings.empty()) {
 301                         // It is impropriate to use error() for undefined shortcut
 302                         setText(_("undefined"));
 303                         break;
 304                 }
 305                 if (type_ == SHORTCUT_INFO)
 306                         setText(bindings.begin()->print(KeySequence::Portable));
 307                 else
 308                         setText(theTopLevelKeymap().printBindings(func, KeySequence::Portable));
 309                 break;
 310         }
 311         case LYXRC_INFO: {
 312                 ostringstream oss;
 313                 if (name_.empty()) {
 314                         setText(_("undefined"));
 315                         break;
 316                 }
 317                 lyxrc.write(oss, true, name_);
 318                 string result = oss.str();
 319                 if (result.size() < 2) {
 320                         setText(_("undefined"));
 321                         break;
 322                 }
 323                 string::size_type loc = result.rfind("\n", result.size() - 2);
 324                 loc = loc == string::npos ? 0 : loc + 1;
 325                 if (result.size() < loc + name_.size() + 1
 326                           || result.substr(loc + 1, name_.size()) != name_) {
 327                         setText(_("undefined"));
 328                         break;
 329                 }
 330                 // remove leading comments and \\name and space
 331                 result = result.substr(loc + name_.size() + 2);
 332
 333                 // remove \n and ""
 334                 result = rtrim(result, "\n");
 335                 result = trim(result, "\"");
 336                 setText(from_utf8(result));
 337                 break;
 338         }
 339         case PACKAGE_INFO:
 340                 // check in packages.lst
 341                 setText(LaTeXFeatures::isAvailable(name_) ? _("yes") : _("no"));
 342                 break;
 343
 344         case TEXTCLASS_INFO: {
 345                 // name_ is the class name
 346                 LayoutFileList const & list = LayoutFileList::get();
 347                 bool available = false;
 348                 if (list.haveClass(name_))
 349                         available = list[name_].isTeXClassAvailable();
 350                 setText(available ? _("yes") : _("no"));
 351                 break;
 352         }
 353         case MENU_INFO: {
 354                 docstring_list names;
 355                 FuncRequest const func = lyxaction.lookupFunc(name_);
 356                 if (func.action() == LFUN_UNKNOWN_ACTION) {
 357                         error("Unknown action %1$s");
 358                         break;
 359                 }
 360                 // iterate through the menubackend to find it
 361                 if (!theApp()->searchMenu(func, names)) {
 362                         error("No menu entry for action %1$s");
 363                         break;
 364                 }
 365                 // if found, return its path.
 366                 clear();
 367                 Paragraph & par = paragraphs().front();
 368                 Font const f(inherit_font, buffer().params().language);
 369                 //Font fu = f;
 370                 //fu.fontInfo().setUnderbar(FONT_ON);
 371                 docstring_list::const_iterator beg = names.begin();
 372                 docstring_list::const_iterator end = names.end();
 373                 for (docstring_list::const_iterator it = beg ;
 374                      it != end ; ++it) {
 375                         // do not insert > for the top level menu item
 376                         if (it != beg)
 377                                 par.insertInset(par.size(), new InsetSpecialChar(InsetSpecialChar::MENU_SEPARATOR),
 378                                                 Change(Change::UNCHANGED));
 379                         //FIXME: add proper underlines here. This
 380                         // involves rewriting searchMenu used above to
 381                         // return a vector of menus. If we do not do
 382                         // that, we might as well use below
 383                         // Paragraph::insert on each string (JMarc)
 384                         for (size_type i = 0; i != it->length(); ++i)
 385                                 par.insertChar(par.size(), (*it)[i],
 386                                                f, Change(Change::UNCHANGED));
 387                 }
 388                 break;
 389         }
 390         case ICON_INFO: {
 391                 FuncRequest func = lyxaction.lookupFunc(name_);
 392                 docstring icon_name = theApp()->iconName(func, true);
 393                 //FIXME: We should use the icon directly instead of
 394                 // going through FileName. The code below won't work
 395                 // if the icon is embedded in the executable through
 396                 // the Qt resource system.
 397                 FileName file(to_utf8(icon_name));
 398                 if (!file.exists())
 399                         break;
 400                 InsetGraphics * inset = new InsetGraphics(buffer_);
 401                 InsetGraphicsParams igp;
 402                 igp.filename = file;
 403                 inset->setParams(igp);
 404                 clear();
 405                 paragraphs().front().insertInset(0, inset,
 406                                                  Change(Change::UNCHANGED));
 407                 break;
 408         }
 409         case BUFFER_INFO: {
 410                 if (name_ == "name") {
 411                         setText(from_utf8(buffer().fileName().onlyFileName()));
 412                         break;
 413                 }
 414                 if (name_ == "path") {
 415                         setText(from_utf8(buffer().filePath()));
 416                         break;
 417                 }
 418                 if (name_ == "class") {
 419                         setText(from_utf8(bp.documentClass().name()));
 420                         break;
 421                 }
 422
 423                 // everything that follows is for version control.
 424                 // nothing that isn't version control should go below this line.
 425                 if (!buffer().lyxvc().inUse()) {
 426                         setText(_("No version control"));
 427                         break;
 428                 }
 429                 LyXVC::RevisionInfo itype = LyXVC::Unknown;
 430                 if (name_ == "vcs-revision")
 431                         itype = LyXVC::File;
 432                 else if (name_ == "vcs-tree-revision")
 433                         itype = LyXVC::Tree;
 434                 else if (name_ == "vcs-author")
 435                         itype = LyXVC::Author;
 436                 else if (name_ == "vcs-time")
 437                         itype = LyXVC::Time;
 438                 else if (name_ == "vcs-date")
 439                         itype = LyXVC::Date;
 440                 string binfo = buffer().lyxvc().revisionInfo(itype);
 441                 if (binfo.empty())
 442                         setText(bformat(_("%1$s unknown"), from_ascii(name_)));
 443                 else
 444                         setText(from_utf8(binfo));
 445                 break;
 446         }
 447         case LYX_INFO:
 448                 if (name_ == "version")
 449                         setText(from_ascii(PACKAGE_VERSION));
 450                 break;
 451         }
 452 }
 453
 454
 455 docstring InsetInfo::contextMenuName() const
 456 {
 457         return from_ascii("context-info");
 458 }
 459
 460
 461 } // namespace lyx