src/frontends/xforms/FormFiledialog.C

   1 /**
   2  * \file FormFiledialog.C
   3  * Copyright 2001 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author unknown
   7  * \author John Levon
   8  */
   9
  10 #include <config.h>
  11
  12 #include <unistd.h>
  13 #include <cstdlib>
  14 #include <pwd.h>
  15 #include <grp.h>
  16 //#include <cstring>
  17 #include <map>
  18 #include <algorithm>
  19
  20 using std::map;
  21 using std::max;
  22 using std::sort;
  23
  24 #include "lyx_gui_misc.h" // for WriteFSAlert
  25 #include "support/FileInfo.h"
  26 #include "support/lyxlib.h"
  27 #include "support/lstrings.h"
  28 #include "gettext.h"
  29 #include "frontends/Dialogs.h"
  30
  31 #ifdef HAVE_ERRNO_H
  32 #include <cerrno>
  33 #endif
  34
  35 #if HAVE_DIRENT_H
  36 # include <dirent.h>
  37 # define NAMLEN(dirent) strlen((dirent)->d_name)
  38 #else
  39 # define dirent direct
  40 # define NAMLEN(dirent) (dirent)->d_namlen
  41 # if HAVE_SYS_NDIR_H
  42 #  include <sys/ndir.h>
  43 # endif
  44 # if HAVE_SYS_DIR_H
  45 #  include <sys/dir.h>
  46 # endif
  47 # if HAVE_NDIR_H
  48 #  include <ndir.h>
  49 # endif
  50 #endif
  51
  52 #if TIME_WITH_SYS_TIME
  53 # include <sys/time.h>
  54 # include <ctime>
  55 #else
  56 # if HAVE_SYS_TIME_H
  57 #  include <sys/time.h>
  58 # else
  59 #  include <ctime>
  60 # endif
  61 #endif
  62
  63 // FIXME: should be autoconfiscated
  64 #ifdef BROKEN_HEADERS
  65 extern "C" int gettimeofday(struct timeval *, struct timezone *);
  66 #endif
  67
  68 #ifdef __GNUG__
  69 #pragma implementation
  70 #endif
  71
  72 #include "support/filetools.h"
  73 #include "FormFiledialog.h"
  74
  75 namespace {
  76
  77 // six months, in seconds
  78 long const SIX_MONTH_SEC = 6L * 30L * 24L * 60L * 60L;
  79 //static
  80 long const ONE_HOUR_SEC = 60L * 60L;
  81
  82 } // namespace anon
  83
  84
  85 // *** User cache class implementation
  86 /// User cache class definition
  87 class UserCache {
  88 public:
  89         /// seeks user name from group ID
  90         string const & find(uid_t ID) const {
  91                 Users::const_iterator cit = users.find(ID);
  92                 if (cit == users.end()) {
  93                         add(ID);
  94                         return users[ID];
  95                 }
  96                 return cit->second;
  97         }
  98 private:
  99         ///
 100         void add(uid_t ID) const;
 101         ///
 102         typedef map<uid_t, string> Users;
 103         ///
 104         mutable Users users;
 105 };
 106
 107
 108 void UserCache::add(uid_t ID) const
 109 {
 110         string pszNewName;
 111         struct passwd * pEntry;
 112
 113         // gets user name
 114         if ((pEntry = getpwuid(ID)))
 115                 pszNewName = pEntry->pw_name;
 116         else {
 117                 pszNewName = tostr(ID);
 118         }
 119
 120         // adds new node
 121         users[ID] = pszNewName;
 122 }
 123
 124
 125 /// Group cache class definition
 126 class GroupCache {
 127 public:
 128         /// seeks group name from group ID
 129         string const & find(gid_t ID) const ;
 130 private:
 131         ///
 132         void add(gid_t ID) const;
 133         ///
 134         typedef map<gid_t, string> Groups;
 135         ///
 136         mutable Groups groups;
 137 };
 138
 139
 140 string const & GroupCache::find(gid_t ID) const
 141 {
 142         Groups::const_iterator cit = groups.find(ID);
 143         if (cit == groups.end()) {
 144                 add(ID);
 145                 return groups[ID];
 146         }
 147         return cit->second;
 148 }
 149
 150
 151 void GroupCache::add(gid_t ID) const
 152 {
 153         string pszNewName;
 154         struct group * pEntry;
 155
 156         // gets user name
 157         if ((pEntry = getgrgid(ID))) pszNewName = pEntry->gr_name;
 158         else {
 159                 pszNewName = tostr(ID);
 160         }
 161         // adds new node
 162         groups[ID] = pszNewName;
 163 }
 164
 165
 166 namespace {
 167
 168 // local instances
 169 UserCache lyxUserCache;
 170 GroupCache lyxGroupCache;
 171
 172 } // namespace anon
 173
 174
 175 // compares two LyXDirEntry objects content (used for sort)
 176 class comp_direntry {
 177 public:
 178         int operator()(DirEntry const & r1,
 179                        DirEntry const & r2) const ;
 180 };
 181         int comp_direntry::operator()(DirEntry const & r1,
 182                        DirEntry const & r2) const {
 183                 bool r1d = suffixIs(r1.pszName, '/');
 184                 bool r2d = suffixIs(r2.pszName, '/');
 185                 if (r1d && !r2d) return 1;
 186                 if (!r1d && r2d) return 0;
 187                 return r1.pszName < r2.pszName;
 188         }
 189
 190
 191 // *** FileDialog::Private class implementation
 192
 193 // static members
 194 FD_form_filedialog * FileDialog::Private::pFileDlgForm = 0;
 195 FileDialog::Private * FileDialog::Private::pCurrentDlg = 0;
 196
 197
 198 // Reread: updates dialog list to match class directory
 199 void FileDialog::Private::Reread()
 200 {
 201         // Opens directory
 202         DIR * pDirectory = ::opendir(pszDirectory.c_str());
 203         if (!pDirectory) {
 204                 WriteFSAlert(_("Warning! Couldn't open directory."),
 205                              pszDirectory);
 206                 pszDirectory = lyx::getcwd();
 207                 pDirectory = ::opendir(pszDirectory.c_str());
 208         }
 209
 210         // Clear the present namelist
 211         direntries.clear();
 212
 213         // Updates display
 214         fl_hide_object(pFileDlgForm->List);
 215         fl_clear_browser(pFileDlgForm->List);
 216         fl_set_input(pFileDlgForm->DirBox, pszDirectory.c_str());
 217
 218         // Splits complete directory name into directories and compute depth
 219         iDepth = 0;
 220         string line, Temp;
 221         char szMode[15];
 222         FileInfo fileInfo;
 223         string File = pszDirectory;
 224         if (File != "/") {
 225                 File = split(File, Temp, '/');
 226         }
 227         while (!File.empty() || !Temp.empty()) {
 228                 string dline = "@b"+line + Temp + '/';
 229                 fl_add_browser_line(pFileDlgForm->List, dline.c_str());
 230                 File = split(File, Temp, '/');
 231                 line += ' ';
 232                 ++iDepth;
 233         }
 234
 235         // Parses all entries of the given subdirectory
 236         time_t curTime = time(0);
 237         rewinddir(pDirectory);
 238         struct dirent * pDirEntry;
 239         while ((pDirEntry = readdir(pDirectory))) {
 240                 bool isLink = false, isDir = false;
 241
 242                 // If the pattern doesn't start with a dot, skip hidden files
 243                 if (!pszMask.empty() && pszMask[0] != '.' &&
 244                     pDirEntry->d_name[0] == '.')
 245                         continue;
 246
 247                 // Gets filename
 248                 string fname = pDirEntry->d_name;
 249
 250                 // Under all circumstances, "." and ".." are not wanted
 251                 if (fname == "." || fname == "..")
 252                         continue;
 253
 254                 // gets file status
 255                 File = AddName(pszDirectory, fname);
 256
 257                 fileInfo.newFile(File, true);
 258                 fileInfo.modeString(szMode);
 259                 unsigned int nlink = fileInfo.getNumberOfLinks();
 260                 string user =   lyxUserCache.find(fileInfo.getUid());
 261                 string group = lyxGroupCache.find(fileInfo.getGid());
 262
 263                 time_t modtime = fileInfo.getModificationTime();
 264                 string Time = ctime(&modtime);
 265
 266                 if (curTime > fileInfo.getModificationTime() + SIX_MONTH_SEC
 267                     || curTime < fileInfo.getModificationTime()
 268                     + ONE_HOUR_SEC) {
 269                         // The file is fairly old or in the future. POSIX says
 270                         // the cutoff is 6 months old. Allow a 1 hour slop
 271                         // factor for what is considered "the future", to
 272                         // allow for NFS server/client clock disagreement.
 273                         // Show the year instead of the time of day.
 274                         Time.erase(10, 9);
 275                         Time.erase(15, string::npos);
 276                 } else {
 277                         Time.erase(16, string::npos);
 278                 }
 279
 280                 string Buffer = string(szMode) + ' ' +
 281                         tostr(nlink) + ' ' +
 282                         user + ' ' +
 283                         group + ' ' +
 284                         Time.substr(4, string::npos) + ' ';
 285
 286                 Buffer += pDirEntry->d_name;
 287                 Buffer += fileInfo.typeIndicator();
 288
 289                 if ((isLink = fileInfo.isLink())) {
 290                         string Link;
 291
 292                         if (LyXReadLink(File, Link)) {
 293                                 Buffer += " -> ";
 294                                 Buffer += Link;
 295
 296                                 // This gives the FileType of the file that
 297                                 // is really pointed too after resolving all
 298                                 // symlinks. This is not necessarily the same
 299                                 // as the type of Link (which could again be a
 300                                 // link). Is that intended?
 301                                 //                              JV 199902
 302                                 fileInfo.newFile(File);
 303                                 Buffer += fileInfo.typeIndicator();
 304                         }
 305                 }
 306
 307                 // filters files according to pattern and type
 308                 if (fileInfo.isRegular()
 309                     || fileInfo.isChar()
 310                     || fileInfo.isBlock()
 311                     || fileInfo.isFifo()) {
 312                         if (!regexMatch(fname, pszMask))
 313                                 continue;
 314                 } else if (!(isDir = fileInfo.isDir()))
 315                         continue;
 316
 317                 DirEntry tmp;
 318
 319                 // Note pszLsEntry is an string!
 320                 tmp.pszLsEntry = Buffer;
 321                 // creates used name
 322                 string temp = fname;
 323                 if (isDir) temp += '/';
 324
 325                 tmp.pszName = temp;
 326                 // creates displayed name
 327                 temp = pDirEntry->d_name;
 328                 if (isLink)
 329                         temp += '@';
 330                 else
 331                         temp += fileInfo.typeIndicator();
 332                 tmp.pszDisplayed = temp;
 333
 334                 direntries.push_back(tmp);
 335         }
 336
 337         closedir(pDirectory);
 338
 339         // Sort the names
 340         sort(direntries.begin(), direntries.end(), comp_direntry());
 341
 342         // Add them to directory box
 343         for (DirEntries::const_iterator cit = direntries.begin();
 344              cit != direntries.end(); ++cit) {
 345                 string const temp = line + cit->pszDisplayed;
 346                 fl_add_browser_line(pFileDlgForm->List, temp.c_str());
 347         }
 348         fl_set_browser_topline(pFileDlgForm->List, iDepth);
 349         fl_show_object(pFileDlgForm->List);
 350         iLastSel = -1;
 351 }
 352
 353
 354 // SetDirectory: sets dialog current directory
 355 void FileDialog::Private::SetDirectory(string const & Path)
 356 {
 357         if (!pszDirectory.empty()) {
 358                 string TempPath = ExpandPath(Path); // Expand ~/
 359                 TempPath = MakeAbsPath(TempPath, pszDirectory);
 360                 pszDirectory = MakeAbsPath(TempPath);
 361         } else pszDirectory = MakeAbsPath(Path);
 362 }
 363
 364
 365 // SetMask: sets dialog file mask
 366 void FileDialog::Private::SetMask(string const & NewMask)
 367 {
 368         pszMask = NewMask;
 369         fl_set_input(pFileDlgForm->PatBox, pszMask.c_str());
 370 }
 371
 372
 373 // SetInfoLine: sets dialog information line
 374 void FileDialog::Private::SetInfoLine(string const & Line)
 375 {
 376         pszInfoLine = Line;
 377         fl_set_object_label(pFileDlgForm->FileInfo, pszInfoLine.c_str());
 378 }
 379
 380
 381 FileDialog::Private::Private()
 382 {
 383         pszDirectory = MakeAbsPath(string("."));
 384         pszMask = '*';
 385
 386         // Creates form if necessary.
 387         if (!pFileDlgForm) {
 388                 pFileDlgForm = build_filedialog();
 389                 // Set callbacks. This means that we don't need a patch file
 390                 fl_set_object_callback(pFileDlgForm->DirBox,
 391                                        C_LyXFileDlg_FileDlgCB, 0);
 392                 fl_set_object_callback(pFileDlgForm->PatBox,
 393                                        C_LyXFileDlg_FileDlgCB, 1);
 394                 fl_set_object_callback(pFileDlgForm->List,
 395                                        C_LyXFileDlg_FileDlgCB, 2);
 396                 fl_set_object_callback(pFileDlgForm->Filename,
 397                                        C_LyXFileDlg_FileDlgCB, 3);
 398                 fl_set_object_callback(pFileDlgForm->Rescan,
 399                                        C_LyXFileDlg_FileDlgCB, 10);
 400                 fl_set_object_callback(pFileDlgForm->Home,
 401                                        C_LyXFileDlg_FileDlgCB, 11);
 402                 fl_set_object_callback(pFileDlgForm->User1,
 403                                        C_LyXFileDlg_FileDlgCB, 12);
 404                 fl_set_object_callback(pFileDlgForm->User2,
 405                                        C_LyXFileDlg_FileDlgCB, 13);
 406
 407                 // Make sure pressing the close box doesn't crash LyX. (RvdK)
 408                 fl_set_form_atclose(pFileDlgForm->form,
 409                                     C_LyXFileDlg_CancelCB, 0);
 410                 // Register doubleclick callback
 411                 fl_set_browser_dblclick_callback(pFileDlgForm->List,
 412                                                  C_LyXFileDlg_DoubleClickCB,
 413                                                  0);
 414         }
 415         fl_hide_object(pFileDlgForm->User1);
 416         fl_hide_object(pFileDlgForm->User2);
 417
 418         r_ = Dialogs::redrawGUI.connect(SigC::slot(this, &FileDialog::Private::redraw));
 419 }
 420
 421
 422 FileDialog::Private::~Private()
 423 {
 424         r_.disconnect();
 425 }
 426
 427
 428 void FileDialog::Private::redraw()
 429 {
 430         if (pFileDlgForm->form && pFileDlgForm->form->visible)
 431                 fl_redraw_form(pFileDlgForm->form);
 432 }
 433
 434
 435 // SetButton: sets file selector user button action
 436 void FileDialog::Private::SetButton(int iIndex, string const & pszName,
 437                            string const & pszPath)
 438 {
 439         FL_OBJECT * pObject;
 440         string * pTemp;
 441
 442         if (iIndex == 0) {
 443                 pObject = pFileDlgForm->User1;
 444                 pTemp = &pszUserPath1;
 445         } else if (iIndex == 1) {
 446                 pObject = pFileDlgForm->User2;
 447                 pTemp = &pszUserPath2;
 448         } else return;
 449
 450         if (!pszName.empty() && !pszPath.empty()) {
 451                 fl_set_object_label(pObject, pszName.c_str());
 452                 fl_show_object(pObject);
 453                 *pTemp = pszPath;
 454         } else {
 455                 fl_hide_object(pObject);
 456                 pTemp->erase();
 457         }
 458 }
 459
 460
 461 // GetDirectory: gets last dialog directory
 462 string const FileDialog::Private::GetDirectory() const
 463 {
 464         if (!pszDirectory.empty())
 465                 return pszDirectory;
 466         else
 467                 return string(".");
 468 }
 469
 470
 471 // RunDialog: handle dialog during file selection
 472 bool FileDialog::Private::RunDialog()
 473 {
 474         force_cancel = false;
 475         force_ok = false;
 476
 477         // event loop
 478         while(true) {
 479                 FL_OBJECT * pObject = fl_do_forms();
 480
 481                 if (pObject == pFileDlgForm->Ready) {
 482                         if (HandleOK())
 483                                 return true;
 484                 } else if (pObject == pFileDlgForm->Cancel
 485                            || force_cancel)
 486                         return false;
 487                 else if (force_ok)
 488                         return true;
 489         }
 490 }
 491
 492
 493 // XForms objects callback (static)
 494 void FileDialog::Private::FileDlgCB(FL_OBJECT *, long lArgument)
 495 {
 496         if (!pCurrentDlg) return;
 497
 498         switch (lArgument) {
 499
 500         case 0: // get directory
 501                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 502                 pCurrentDlg->Reread();
 503                 break;
 504
 505         case 1: // get mask
 506                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 507                 pCurrentDlg->Reread();
 508                 break;
 509
 510         case 2: // list
 511                 pCurrentDlg->HandleListHit();
 512                 break;
 513
 514         case 10: // rescan
 515                 pCurrentDlg->SetDirectory(fl_get_input(pFileDlgForm->DirBox));
 516                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 517                 pCurrentDlg->Reread();
 518                 break;
 519
 520         case 11: // home
 521                 pCurrentDlg->SetDirectory(GetEnvPath("HOME"));
 522                 pCurrentDlg->SetMask(fl_get_input(pFileDlgForm->PatBox));
 523                 pCurrentDlg->Reread();
 524                 break;
 525
 526         case 12: // user button 1
 527                 if (!pCurrentDlg->pszUserPath1.empty()) {
 528                         pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath1);
 529                         pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 530                                                           ->PatBox));
 531                         pCurrentDlg->Reread();
 532                 }
 533                 break;
 534
 535         case 13: // user button 2
 536                 if (!pCurrentDlg->pszUserPath2.empty()) {
 537                         pCurrentDlg->SetDirectory(pCurrentDlg->pszUserPath2);
 538                         pCurrentDlg->SetMask(fl_get_input(pFileDlgForm
 539                                                           ->PatBox));
 540                         pCurrentDlg->Reread();
 541                 }
 542                 break;
 543
 544         }
 545 }
 546
 547
 548 extern "C" void C_LyXFileDlg_FileDlgCB(FL_OBJECT * ob, long data)
 549 {
 550         FileDialog::Private::FileDlgCB(ob, data);
 551 }
 552
 553
 554 // Handle callback from list
 555 void FileDialog::Private::HandleListHit()
 556 {
 557         // set info line
 558         int const iSelect = fl_get_browser(pFileDlgForm->List);
 559         if (iSelect > iDepth)  {
 560                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 561         } else {
 562                 SetInfoLine(string());
 563         }
 564 }
 565
 566
 567 // Callback for double click in list
 568 void FileDialog::Private::DoubleClickCB(FL_OBJECT *, long)
 569 {
 570         if (pCurrentDlg->HandleDoubleClick())
 571                 // Simulate click on OK button
 572                 pCurrentDlg->Force(false);
 573 }
 574
 575
 576 extern "C" void C_LyXFileDlg_DoubleClickCB(FL_OBJECT * ob, long data)
 577 {
 578         FileDialog::Private::DoubleClickCB(ob, data);
 579 }
 580
 581
 582 // Handle double click from list
 583 bool FileDialog::Private::HandleDoubleClick()
 584 {
 585         string pszTemp;
 586
 587         // set info line
 588         bool isDir = true;
 589         int const iSelect = fl_get_browser(pFileDlgForm->List);
 590         if (iSelect > iDepth)  {
 591                 pszTemp = direntries[iSelect - iDepth - 1].pszName;
 592                 SetInfoLine(direntries[iSelect - iDepth - 1].pszLsEntry);
 593                 if (!suffixIs(pszTemp, '/')) {
 594                         isDir = false;
 595                         fl_set_input(pFileDlgForm->Filename, pszTemp.c_str());
 596                 }
 597         } else if (iSelect != 0) {
 598                 SetInfoLine(string());
 599         } else
 600                 return true;
 601
 602         // executes action
 603         if (isDir) {
 604                 string Temp;
 605
 606                 // builds new directory name
 607                 if (iSelect > iDepth) {
 608                         // Directory deeper down
 609                         // First, get directory with trailing /
 610                         Temp = fl_get_input(pFileDlgForm->DirBox);
 611                         if (!suffixIs(Temp, '/'))
 612                                 Temp += '/';
 613                         Temp += pszTemp;
 614                 } else {
 615                         // Directory higher up
 616                         Temp.erase();
 617                         for (int i = 0; i < iSelect; ++i) {
 618                                 string piece = fl_get_browser_line(pFileDlgForm->List, i+1);
 619                                 // The '+2' is here to count the '@b' (JMarc)
 620                                 Temp += piece.substr(i + 2);
 621                         }
 622                 }
 623
 624                 // assigns it
 625                 SetDirectory(Temp);
 626                 Reread();
 627                 return false;
 628         }
 629         return true;
 630 }
 631
 632
 633 // Handle OK button call
 634 bool FileDialog::Private::HandleOK()
 635 {
 636         // mask was changed
 637         string pszTemp = fl_get_input(pFileDlgForm->PatBox);
 638         if (pszTemp != pszMask) {
 639                 SetMask(pszTemp);
 640                 Reread();
 641                 return false;
 642         }
 643
 644         // directory was changed
 645         pszTemp = fl_get_input(pFileDlgForm->DirBox);
 646         if (pszTemp!= pszDirectory) {
 647                 SetDirectory(pszTemp);
 648                 Reread();
 649                 return false;
 650         }
 651
 652         // Handle return from list
 653         int const select = fl_get_browser(pFileDlgForm->List);
 654         if (select > iDepth) {
 655                 string const temp = direntries[select - iDepth - 1].pszName;
 656                 if (!suffixIs(temp, '/')) {
 657                         // If user didn't type anything, use browser
 658                         string const name =
 659                                 fl_get_input(pFileDlgForm->Filename);
 660                         if (name.empty()) {
 661                                 fl_set_input(pFileDlgForm->Filename, temp.c_str());
 662                         }
 663                         return true;
 664                 }
 665         }
 666
 667         // Emulate a doubleclick
 668         return HandleDoubleClick();
 669 }
 670
 671
 672 // Handle Cancel CB from WM close
 673 int FileDialog::Private::CancelCB(FL_FORM *, void *)
 674 {
 675         // Simulate a click on the cancel button
 676         pCurrentDlg->Force(true);
 677         return FL_IGNORE;
 678 }
 679
 680
 681 extern "C" int C_LyXFileDlg_CancelCB(FL_FORM *fl, void *xev)
 682 {
 683         return FileDialog::Private::CancelCB(fl, xev);
 684 }
 685
 686
 687 // Simulates a click on OK/Cancel
 688 void FileDialog::Private::Force(bool cancel)
 689 {
 690         if (cancel) {
 691                 force_cancel = true;
 692                 fl_set_button(pFileDlgForm->Cancel, 1);
 693         } else {
 694                 force_ok = true;
 695                 fl_set_button(pFileDlgForm->Ready, 1);
 696         }
 697         // Start timer to break fl_do_forms loop soon
 698         fl_set_timer(pFileDlgForm->timer, 0.1);
 699 }
 700
 701
 702 // Select: launches dialog and returns selected file
 703 string const FileDialog::Private::Select(string const & title, string const & path,
 704                                 string const & mask, string const & suggested)
 705 {
 706         // handles new mask and path
 707         bool isOk = true;
 708         if (!mask.empty()) {
 709                 SetMask(mask);
 710                 isOk = false;
 711         }
 712         if (!path.empty()) {
 713                 SetDirectory(path);
 714                 isOk = false;
 715         }
 716         if (!isOk) Reread();
 717
 718         // highlight the suggested file in the browser, if it exists.
 719         int sel = 0;
 720         string const filename = OnlyFilename(suggested);
 721         if (!filename.empty()) {
 722                 for (int i = 0;
 723                      i < fl_get_browser_maxline(pFileDlgForm->List); ++i) {
 724                         string s =
 725                                 fl_get_browser_line(pFileDlgForm->List, i + 1);
 726                         s = strip(frontStrip(s));
 727                         if (s == filename) {
 728                                 sel = i + 1;
 729                                 break;
 730                         }
 731                 }
 732         }
 733
 734         if (sel != 0) fl_select_browser_line(pFileDlgForm->List, sel);
 735         int const top = max(sel - 5, 1);
 736         fl_set_browser_topline(pFileDlgForm->List, top);
 737
 738         // checks whether dialog can be started
 739         if (pCurrentDlg) return string();
 740         pCurrentDlg = this;
 741
 742         // runs dialog
 743         SetInfoLine(string());
 744         fl_set_input(pFileDlgForm->Filename, suggested.c_str());
 745         fl_set_button(pFileDlgForm->Cancel, 0);
 746         fl_set_button(pFileDlgForm->Ready, 0);
 747         fl_set_focus_object(pFileDlgForm->form, pFileDlgForm->Filename);
 748         fl_deactivate_all_forms();
 749         fl_show_form(pFileDlgForm->form,
 750                      FL_PLACE_MOUSE | FL_FREE_SIZE, 0,
 751                      title.c_str());
 752
 753         isOk = RunDialog();
 754
 755         fl_hide_form(pFileDlgForm->form);
 756         fl_activate_all_forms();
 757         pCurrentDlg = 0;
 758
 759         // Returns filename or string() if no valid selection was made
 760         if (!isOk || !fl_get_input(pFileDlgForm->Filename)[0]) return string();
 761
 762         pszFileName = fl_get_input(pFileDlgForm->Filename);
 763
 764         if (!AbsolutePath(pszFileName)) {
 765                 pszFileName = AddName(fl_get_input(pFileDlgForm->DirBox),
 766                                       pszFileName);
 767         }
 768         return pszFileName;
 769 }